Battery replacement state monitoring method, switching method and system

Abstract

The application discloses a battery replacement state monitoring method, a switching method and a system. The monitoring method comprises the following steps: receiving battery replacement information sent by a battery replacement station; judging whether the unique identification information of a battery replacement vehicle matches an electric vehicle; if yes, judging whether the battery replacement state of the electric vehicle is in a state corresponding to the battery replacement stage information according to the battery replacement stage information; if not, performing corresponding operations according to the battery replacement stage information. In the application, after receiving the battery replacement information sent by the battery replacement station and determining that the battery replacement information is an instruction for the electric vehicle, the electric vehicle can perform different behaviors according to the current battery replacement stage information of the electric vehicle. If the battery replacement state of the electric vehicle does not correspond to the battery replacement stage information, corresponding operations are performed to adjust the electric vehicle to a state most suitable for battery replacement, thereby saving battery replacement time, ensuring battery replacement safety and improving battery replacement efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of battery replacement control of electric vehicles, in particular to a battery replacement state monitoring method, switching method and system. BACKGROUND

[0002] An electric vehicle refers to a new energy vehicle powered by an on-board power source. At present, it is used by more and more users due to its smaller impact on the environment. The energy supply of an electric vehicle can be divided into two modes: plug-in and battery replacement. Due to the defects of large battery investment cost and long charging time in the plug-in mode, the battery replacement mode has become a major energy supply mode.

[0003] However, in the prior art, there can be multiple electric vehicles waiting for battery replacement at a battery replacement station, and the battery replacement states of the electric vehicles can be different. When the battery replacement station is preparing to replace the battery of a certain electric vehicle, the state of the corresponding electric vehicle itself can not be suitable for battery replacement. In this case, the electric vehicle that needs to be replaced cannot be replaced in time, or the electric vehicle that has been replaced still belongs to the state suitable for battery replacement, which affects the normal driving of the vehicle. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the defect that the current state of an electric vehicle is difficult to monitor in the prior art. The present application provides a battery replacement state monitoring method, switching method and system that can automatically monitor whether the current state of an electric vehicle is suitable for battery replacement.

[0005] The present application solves the above technical problems by the following technical solutions:

[0006] The present application provides a battery replacement state monitoring method, which is applied to battery replacement operation of an electric vehicle at a battery replacement station. The monitoring method comprises:

[0007] Receiving battery replacement information sent by the battery replacement station, wherein the battery replacement information comprises battery replacement vehicle unique identification information and corresponding battery replacement stage information;

[0008] Determining whether the battery replacement vehicle unique identification information matches the electric vehicle. If yes, determining whether the battery replacement state of the electric vehicle is in a state corresponding to the battery replacement stage information according to the battery replacement stage information. If not, performing corresponding operation according to the battery replacement stage information.

[0009] In the scheme, after receiving the battery swap information sent by the battery swap station and determining that the battery swap information is an instruction for the vehicle, the electric vehicle can perform different behaviors according to the current battery swap stage information of the electric vehicle. If the battery swap state of the electric vehicle does not correspond to the battery swap stage information, the corresponding operation is performed to adjust the electric vehicle to the most suitable state for battery swap, thereby saving battery swap time, ensuring battery swap safety, and improving battery swap efficiency.

[0010] Preferably, the battery swap state includes a high-voltage state of the electric vehicle, and the battery swap stage information includes battery swap start information; the high-voltage state corresponding to the battery swap start information is a low high-voltage state.

[0011] The step of determining whether the battery swap state of the electric vehicle is in a state corresponding to the battery swap stage information according to the battery swap stage information includes:

[0012] According to the battery swap start information, it is determined whether the electric vehicle is in a low high-voltage state. If not, the electric vehicle is controlled to be in a low high-voltage state.

[0013] In the scheme, before battery swap of the electric vehicle, it is determined whether the high-voltage state of the electric vehicle matches the battery swap stage information, thereby ensuring that the electric vehicle is in a low high-voltage state for battery swap.

[0014] In the scheme, when receiving the battery swap start information, it is determined whether the electric vehicle is in a low high-voltage state. If not, the electric vehicle is controlled to be in a low high-voltage state. Thus, the high-voltage state of the electric vehicle is automatically controlled to be in a low high-voltage state before battery swap, so that the driver does not need to control the electric vehicle to be in a low high-voltage state, or even if the driver does not switch the high-voltage state to a low high-voltage state, the electric vehicle can be switched automatically by the instruction to ensure the safety of battery swap and driving and reduce human risk.

[0015] Preferably, the step of receiving the battery swap information sent by the battery swap station further includes:

[0016] The vehicle information is sent to the battery swap station, and the vehicle information includes vehicle unique identification information of the vehicle.

[0017] The step of determining whether the battery swap vehicle unique identification information matches the electric vehicle includes determining whether the battery swap vehicle unique identification information matches the vehicle unique identification information of the electric vehicle.

[0018] In the scheme, the electric vehicle to be swapped sends the vehicle unique identification information of the vehicle, so that the battery swap station can obtain the vehicle information of the electric vehicle to be swapped in the station, and also confirm that the electric vehicle to be swapped and the battery swap station are in a state of smooth communication, and finally ensure that the electric vehicle can receive the battery swap information matched with itself.

[0019] Preferably, the vehicle information further comprises high-voltage state information.

[0020] In this scheme, after the electric vehicle enters the battery swap station and is communicatively connected with the battery swap station, the vehicle information including the high-voltage state information of the vehicle is actively sent to the battery swap station, so that the battery swap station can learn the current high-voltage state of the electric vehicle to be swapped in the station, thereby enabling the battery swap station to send corresponding control instructions according to the current high-voltage state of each electric vehicle to be swapped in the station.

[0021] Preferably, the step of sending the vehicle information to the battery swap station comprises periodically sending the vehicle information to the battery swap station.

[0022] In this scheme, by periodically sending the vehicle information, the situation that the battery swap fails due to communication failure or other reasons is avoided, and the efficiency of the battery swap is further improved.

[0023] The application further provides a switching method of a battery swap state, which is applied to battery swap operation of an electric vehicle in a battery swap station, and comprises the following steps:

[0024] Receiving battery swap information sent by the battery swap station, wherein the battery swap information comprises unique identification information of a battery swap vehicle and corresponding battery swap stage information;

[0025] Determining whether the unique identification information of the battery swap vehicle matches the electric vehicle, and if yes, performing corresponding operation according to the battery swap stage information.

[0026] In this scheme, after the electric vehicle receives the battery swap information sent by the battery swap station and determines that the battery swap information is an instruction for the vehicle, the electric vehicle can be adjusted to a state most suitable for battery swap according to the current battery swap stage information of the electric vehicle, so as to save battery swap time, ensure battery swap safety, and improve battery swap efficiency.

[0027] Preferably, the battery swap state comprises a high-voltage state of the electric vehicle, and the battery swap stage information comprises battery swap start information; the high-voltage state corresponding to the battery swap start information is a low high-voltage state.

[0028] The step of performing corresponding operation according to the battery swap stage information comprises:

[0029] When the battery swap stage information is the battery swap start information, the electric vehicle is controlled to be in a low high-voltage state.

[0030] In the scheme, as long as the received battery replacement information sent to the vehicle is the battery replacement start information, the high voltage of the electric vehicle is directly controlled. At this time, the current high voltage state of the electric vehicle can not be judged, that is, whether the current high voltage state of the electric vehicle is the high voltage off state or the high voltage on state, the electric vehicle is directly controlled to be in the high voltage off state, so as to ensure that the electric vehicle safely performs the battery replacement in the high voltage off state. The high voltage off state refers to the vehicle off state, and the high voltage on state refers to the vehicle on state. Of course, in other optional implementation manners, the action of controlling the electric vehicle to be in the high voltage off state can not be performed when the current high voltage state of the electric vehicle is in the high voltage off state, so as to avoid performing redundant control operation on the electric vehicle and reduce power consumption.

[0031] In the scheme, when the battery replacement start information is received, the high voltage state of the electric vehicle is automatically controlled to be in the high voltage off state, so that the driver does not need to control the electric vehicle to be in the high voltage off state, or even if the driver does not switch the high voltage state to be in the high voltage off state, the electric vehicle can be switched by the instruction to ensure the safety of battery replacement and driving and reduce human risk.

[0032] Preferably, the step of receiving the battery replacement information sent by the battery replacement station further comprises:

[0033] The vehicle information sent to the battery replacement station includes the vehicle unique identification information of the vehicle.

[0034] The step of judging whether the battery replacement vehicle unique identification information matches the electric vehicle comprises judging whether the battery replacement vehicle unique identification information matches the vehicle unique identification information of the electric vehicle.

[0035] In the scheme, the electric vehicle to be replaced sends the vehicle unique identification information of the vehicle, so that the battery replacement station can obtain the vehicle information of the electric vehicle to be replaced in the station, and also can confirm that the electric vehicle to be replaced and the battery replacement station are in a communication state. Ultimately, the electric vehicle can receive the battery replacement information matched with itself, so as to improve the safety of battery replacement.

[0036] Preferably, the vehicle information further comprises high voltage state information.

[0037] In the scheme, after the electric vehicle enters the battery replacement station and is communicatively connected with the battery replacement station, the vehicle information including the high voltage state information of the vehicle is actively sent to the battery replacement station, so that the battery replacement station can obtain the current high voltage state of the electric vehicle to be replaced in the station, and the battery replacement station can send corresponding control instructions according to the current high voltage state of each electric vehicle to be replaced in the station.

[0038] Preferably, the step of sending the vehicle information to the battery swap station comprises periodically sending the vehicle information to the battery swap station.

[0039] In this scheme, by periodically sending the vehicle information, the situation of battery swap failure caused by communication failure or other reasons is avoided, and the efficiency of battery swap is further improved.

[0040] The application also provides a battery swap state monitoring method, which is applied to monitoring of battery swap operation of an electric vehicle entering a battery swap station, the battery swap station comprising at least one battery swap position, the electric vehicle comprising a current battery swap electric vehicle in the battery swap position and other electric vehicles outside the battery swap position, and the monitoring method comprising:

[0041] receiving vehicle unique identification information of the current battery swap electric vehicle and taking the vehicle unique identification information as battery swap vehicle unique identification information;

[0042] obtaining battery swap stage information of the current battery swap electric vehicle;

[0043] generating battery swap information of the current battery swap electric vehicle according to the battery swap vehicle unique identification information and the battery swap stage information;

[0044] broadcasting the battery swap information.

[0045] The monitoring method provided in this scheme can identify the vehicle unique identification information of the current battery swap electric vehicle in the battery swap position in the battery swap station and send it to the battery swap station, the battery swap station receives the vehicle unique identification information, obtains the battery swap stage information, and generates battery swap information for the current battery swap electric vehicle according to the foregoing information, and then broadcasts the battery swap information to all electric vehicles to be swapped in the battery swap station. That is, all electric vehicles to be swapped in the battery swap station will receive the battery swap information, but only the current battery swap electric vehicle matching the battery swap vehicle unique identification information will respond to the battery swap information. Specifically, corresponding operations are performed according to the battery swap stage information in the battery swap information, so that the current battery swap electric vehicle in the battery swap position automatically enters a suitable battery swap state, the control of battery swap is strengthened, the safety of battery swap is ensured, and the efficiency of battery swap is improved.

[0046] Preferably, the battery swap station comprises a battery swap device.

[0047] The step of obtaining the battery swap stage information of the current battery swap electric vehicle comprises:

[0048] receiving operation state information of the battery swap device for battery swap operation of the current battery swap electric vehicle;

[0049] Generate the battery swap phase information according to the operation state information.

[0050] In the scheme, the battery swap station is provided with a battery swap device for performing battery swap operation on the electric vehicle. After the electric vehicle enters the battery swap position, the related devices in the battery swap station will generally detect whether the electric vehicle is in place. The so-called in place means that the electric vehicle is in a position suitable for battery swap operation. After determining that the electric vehicle is in place, the battery swap device will feed back information representing the entering of the battery swap state, such as battery swap preparation, to the battery swap station, indicating that the battery swap device can start to perform the battery swap operation. During the entire process of the battery swap device performing the battery swap operation on the electric vehicle, the battery swap device will continuously feed back various operation state information to the battery swap station. The battery swap station can obtain the battery swap phase information of the current battery swap electric vehicle according to the operation state information for the current battery swap electric vehicle, that is, the current battery swap electric vehicle is currently in which battery swap phase, so as to complete the subsequent control operation. After completing the battery swap operation, the battery swap device will also feed back information representing the completion of the battery swap state to the battery swap station, indicating that the battery swap device has completed a period of battery swap operation, that is, the electric vehicle currently located in the battery swap position has completed the battery swap and can drive away.

[0051] Preferably, the battery swap phase information includes battery swap start information and battery swap completion information.

[0052] When the received operation state information is battery swap preparation, the step of broadcasting the battery swap information includes broadcasting battery swap information with the battery swap start information; and / or, when the received operation state information is battery swap completion, the step of broadcasting the battery swap information includes broadcasting battery swap information with the battery swap completion information.

[0053] In the scheme, when the operation state information fed back by the battery swap device to the battery swap station is battery swap preparation, it indicates that the current battery swap electric vehicle has just started the battery swap, that is, it is in the battery swap start phase. At this time, the battery swap information with the battery swap start information is broadcasted. Similarly, when the operation state information fed back by the battery swap device to the battery swap station is battery swap completion, it indicates that the current battery swap electric vehicle has completed the battery swap, that is, it is in the battery swap completion phase. At this time, the battery swap information with the battery swap completion information is broadcasted. The scheme can generate different battery swap phase information according to the operation state information, so that the current battery swap electric vehicle can further automatically perform the corresponding operation according to the current different battery swap phase information.

[0054] Preferably, the battery swap state monitoring method further includes:

[0055] Receiving the vehicle information sent by the electric vehicle entering the battery swap station, the vehicle information including the unique vehicle identification information of the electric vehicle;

[0056] The step of broadcasting the battery swap information further includes:

[0057] determining whether the obtained unique identification information of the battery swap vehicle is one of the vehicle information sent by the received electric vehicles entering the battery swap station, and if so, broadcasting the battery swap information.

[0058] In this scheme, each electric vehicle entering the battery swap station for battery swap sends its vehicle information to the battery swap station, and the battery swap station receives the vehicle information, but does not process it in real time. When the battery swap station needs to send instructions to the electric vehicle about to perform the battery swap operation, i.e., the current battery swap electric vehicle in the battery swap position, it needs to determine whether the electric vehicle about to perform the battery swap operation maintains communication status with the battery swap station. Specifically, the battery swap station only broadcasts the battery swap information to the current battery swap electric vehicle in the battery swap position before determining whether the received vehicle information contains the unique identification information of the identified current battery swap electric vehicle in the battery swap position, thereby quickly determining whether the electric vehicle and the battery swap station are in a communication state, thereby ensuring that the electric vehicle about to perform the battery swap operation can receive the instructions sent by the battery swap station. If it is verified from the received first vehicle information that the current battery swap electric vehicle has sent its vehicle information to the battery swap station, the battery swap information is directly broadcasted.

[0059] In this scheme, the electric vehicle entering the battery swap station for battery swap sends vehicle information including the unique identification information of the vehicle to the battery swap station, which enables the battery swap station to obtain the vehicle information of the electric vehicle for battery swap in the station, and also confirms that the electric vehicle for battery swap and the battery swap station are in a communication state, ultimately ensuring that the electric vehicle can receive the battery swap information matching itself, thereby improving the safety of battery swap.

[0060] Preferably, the step of receiving the vehicle information sent by the electric vehicle entering the battery swap station includes periodically receiving the vehicle information sent by the electric vehicle entering the battery swap station.

[0061] The step of determining whether the unique identification information of the battery swap vehicle is one of the received vehicle information sent by the electric vehicle entering the battery swap station includes determining whether the unique identification information of the battery swap vehicle is one of the received first vehicle information sent by the electric vehicle entering the battery swap station.

[0062] The first vehicle information is the vehicle information within a preset time before the unique identification information of the current battery swap electric vehicle is received.

[0063] Or,

[0064] The first vehicle information is vehicle information received within a preset time after the current battery swap electric vehicle receives the vehicle unique identification information.

[0065] In the present solution, the vehicle information of the electric vehicle to be swapped in the battery swap station is preferably sent in a periodic manner, and the battery swap station correspondingly receives the corresponding vehicle information periodically. In the present solution, by judging whether the vehicle unique identification information of the current battery swap electric vehicle in the swap position is contained in the vehicle information received within a preset time before the current battery swap electric vehicle receives the vehicle unique identification information, it can be more accurately judged whether the electric vehicle to be swapped is in communication with the battery swap station. In the present solution, after obtaining the vehicle unique identification information of the current battery swap electric vehicle in the swap position and sending it to the battery swap station, it can be judged whether the vehicle information containing the identified vehicle unique identification information of the current battery swap electric vehicle in the swap position is received within a preset time. Since it takes a certain time for an electric vehicle to enter the swap position to its swap completion and drive away from the swap position, the vehicle information received by the battery swap station within a preset time, such as a sending period, after identifying the vehicle unique identification information of the electric vehicle entering the swap position, will not affect the efficiency of the swap operation.

[0066] Preferably, the step of broadcasting the battery swap information with the battery swap start information further comprises:

[0067] According to the received operation state information and the high-voltage state information in the vehicle information sent by the current battery swap electric vehicle within the last period, the current battery swap electric vehicle is subjected to corresponding operation.

[0068] In the present solution, the battery swap station needs to ensure that the current battery swap electric vehicle in the swap position is in the lower high-voltage state suitable for battery swap before formally starting the swap operation. After the step of broadcasting the battery swap information with the battery swap start information, a response time of one period is given to the current battery swap electric vehicle in the swap position, i.e. waiting for the current battery swap electric vehicle in the swap position to automatically control the vehicle to be in the lower high-voltage state, i.e. the state suitable for battery swap, so as to be safely swapped by the battery swap device. The current battery swap electric vehicle in the swap position sends its vehicle information including the current high-voltage state information to the battery swap station every period. In the present solution, the time point of obtaining the high-voltage state information in the vehicle information sent by the current battery swap electric vehicle ensures that the swap operation is performed on the current battery swap electric vehicle in the first time after it is in the state suitable for battery swap, which can improve the swap efficiency.

[0069] Preferably, the high-voltage state information includes lower high-voltage state information and upper high-voltage state information.

[0070] The step of performing corresponding operation on the current battery swap electric vehicle according to the received operation state information and high voltage state information in the vehicle information received from the current battery swap electric vehicle in the last period comprises:

[0071] When the received high voltage state information is the low high voltage state information and the received operation state information is battery swap preparation, the battery swap device is controlled to start battery swap operation, or the battery swap device is controlled to start battery swap operation and simultaneously stop broadcasting current battery swap information;

[0072] and / or,

[0073] When the received high voltage state information is the high high voltage state information and the received operation state information is battery swap preparation, the battery swap device is controlled to maintain battery swap preparation state, or the battery swap device is controlled to maintain battery swap preparation state and simultaneously issue prompt information and / or continuously broadcast current battery swap information;

[0074] and / or,

[0075] When the received high voltage state information is the low high voltage state information and the received operation state information is battery swap completion, the battery swap device is controlled to wait for a preset time;

[0076] The step of controlling the battery swap device to wait for a preset time further comprises: if the received high voltage state information is still the low high voltage state information and the received operation state information is still battery swap completion, the monitoring method further comprises the step of: controlling the battery swap device to repeat the battery installation action or prompt manual operation once.

[0077] In the scheme, the battery swap station controls the battery swap equipment to perform different battery swap operations by receiving high voltage state information and operation state information, so as to ensure the accuracy of the operation. For the case that the high voltage state information is low high voltage state information and the operation state information is battery swap preparation, it is indicated that the current battery swap electric vehicle in the battery swap position has been adjusted to a state suitable for battery swap according to the battery swap information broadcast by the battery swap station, at this time, it is safe to control the battery swap equipment to perform battery swap on it, in order to save the workload of the battery swap station and improve the resource utilization, at this time, the current battery swap information can be stopped broadcasting. For the case that the high voltage state information is high high voltage state information and the operation state information is battery swap preparation, it is indicated that the current battery swap electric vehicle in the battery swap position has not been adjusted to a state suitable for battery swap after receiving the battery swap information broadcast by the battery swap station with battery swap start information, at this time, it is not safe to perform battery swap operation on it, so the battery swap equipment is not allowed to perform battery swap operation on it, at this time, the battery swap equipment needs to be controlled to maintain in the battery swap preparation state, and corresponding prompt information can also be sent to remind the on-site staff to perform manual processing. For the case that the high voltage state information is low high voltage state information and the operation state information is battery swap completion, if the current battery swap electric vehicle in the battery swap position has completed battery swap at this time, the electric vehicle will be driven by the driver to be high voltage and leave the battery swap position after waiting for a preset time, if the high voltage state information is still low high voltage state information and the operation state information is battery swap completion after waiting for a preset time, at this time, a fault may occur, for example, the battery swap equipment has an abnormality, and the real situation is that the battery swap has not been completed, at this time, the battery swap equipment can be controlled to install the battery or prompt manual to install the battery or check the equipment, so as to ensure the effectiveness of the battery swap operation.

[0078] Preferably, the step of broadcasting the battery swap information comprises periodically broadcasting the battery swap information.

[0079] In the scheme, the battery swap information is periodically broadcasted, so that the case that the battery swap fails due to information interaction failure is avoided, and it is ensured that the electric vehicle receives the battery swap information.

[0080] The application also provides a battery swap state monitoring system, which is applied to battery swap operation of an electric vehicle in a battery swap station, and comprises a battery swap information receiving module, a vehicle matching module, a battery swap stage matching module and a first operation control module.

[0081] The battery swap information receiving module is used to receive battery swap information sent by the battery swap station, and the battery swap information comprises battery swap vehicle unique identification information and corresponding battery swap stage information.

[0082] The vehicle matching module is used to judge whether the battery swap vehicle unique identification information matches the electric vehicle, if yes, the battery swap stage matching module is called.

[0083] The battery replacement phase matching module is configured to determine whether the battery replacement state of the electric vehicle is in a state corresponding to the battery replacement phase information according to the battery replacement phase information, and if not, call the first operation control module;

[0084] The first operation control module is configured to perform corresponding operation according to the battery replacement phase information.

[0085] In this scheme, after receiving the battery replacement information sent by the battery replacement station and determining that the battery replacement signal is an instruction for the vehicle, the electric vehicle can perform different behaviors according to the current battery replacement phase information of the electric vehicle. If the battery replacement state of the electric vehicle does not correspond to the battery replacement phase information, corresponding operation will be performed to adjust the electric vehicle to the most suitable state for battery replacement, thereby saving battery replacement time, ensuring battery replacement safety, and improving battery replacement efficiency.

[0086] Preferably, the battery replacement state includes a high-voltage state of the electric vehicle, and the battery replacement phase information includes battery replacement start information; the high-voltage state corresponding to the battery replacement start information is a low high-voltage state.

[0087] The battery replacement phase matching module is configured to determine whether the electric vehicle is in a low high-voltage state according to the battery replacement start information, and if not, call the first operation control module.

[0088] The first operation control module is configured to control the electric vehicle to be in a low high-voltage state.

[0089] Preferably, the monitoring system further comprises a vehicle information sending module.

[0090] The vehicle information sending module is configured to send vehicle information to the battery replacement station, and the vehicle information includes vehicle unique identification information of the vehicle.

[0091] The vehicle matching module is configured to determine whether the battery replacement vehicle unique identification information matches the vehicle unique identification information of the electric vehicle.

[0092] Preferably, the vehicle information further includes high-voltage state information.

[0093] Preferably, the vehicle information sending module is configured to periodically send the vehicle information to the battery replacement station.

[0094] The application also provides a battery replacement state switching system, which is applied to battery replacement operation of an electric vehicle in a battery replacement station, and comprises a battery replacement information receiving module, a vehicle matching module, and an operation control module.

[0095] The battery replacement information receiving module is configured to receive battery replacement information sent by the battery replacement station, wherein the battery replacement information comprises battery replacement vehicle unique identification information and corresponding battery replacement stage information.

[0096] The vehicle matching module is configured to determine whether the battery replacement vehicle unique identification information matches the electric vehicle, and if so, call the operation control module.

[0097] In this scheme, after receiving the battery replacement information sent by the battery replacement station and determining that the battery replacement information is an instruction for the electric vehicle, the electric vehicle can perform corresponding operations according to the current battery replacement stage information of the electric vehicle, so as to adjust the electric vehicle to the most suitable state for battery replacement, thereby saving battery replacement time, ensuring battery replacement safety, and improving battery replacement efficiency.

[0098] Preferably, the battery replacement state comprises a high-voltage state of the electric vehicle, and the battery replacement stage information comprises battery replacement start information; the high-voltage state corresponding to the battery replacement start information is a low high-voltage state.

[0099] The operation control module performs corresponding operations according to the battery replacement stage information.

[0100] When the battery replacement stage information is the battery replacement start information, the low high-voltage state of the electric vehicle is controlled.

[0101] Preferably, the switching system further comprises a vehicle information sending module.

[0102] The vehicle information sending module is configured to send vehicle information to the battery replacement station, wherein the vehicle information comprises vehicle unique identification information of the electric vehicle.

[0103] The vehicle matching module is configured to determine whether the battery replacement vehicle unique identification information matches the vehicle unique identification information of the electric vehicle.

[0104] Preferably, the vehicle information further comprises high-voltage state information.

[0105] Preferably, the vehicle information sending module is configured to periodically send the vehicle information to the battery replacement station.

[0106] The application also provides a battery replacement state monitoring system, which is applied to monitoring of battery replacement operation of an electric vehicle entering a battery replacement station by the battery replacement station, wherein the battery replacement station comprises at least one battery replacement position, the electric vehicle comprises a current battery replacement electric vehicle in the battery replacement position and other electric vehicles outside the battery replacement position, and the monitoring system comprises a vehicle information acquisition module, a battery replacement stage acquisition module, a battery replacement information generation module, and a battery replacement information broadcasting module.

[0107] The vehicle information obtaining module is configured to receive vehicle unique identification information of the current battery swap electric vehicle and take the vehicle unique identification information as battery swap vehicle unique identification information.

[0108] The battery swap stage obtaining module is configured to obtain battery swap stage information of the current battery swap electric vehicle.

[0109] The battery swap information generating module is configured to generate battery swap information of the current battery swap electric vehicle according to the battery swap vehicle unique identification information and the battery swap stage information.

[0110] The battery swap information broadcasting module is configured to broadcast the battery swap information.

[0111] In the scheme, for the current battery swap electric vehicle in the battery swap station, the vehicle unique identification information of the current battery swap electric vehicle can be identified by the identification device in the battery swap station and sent to the battery swap station. The battery swap station receives the vehicle unique identification information, obtains the battery swap stage information, and generates the battery swap information for the current battery swap electric vehicle according to the foregoing information, and then broadcasts the battery swap information to all battery swap electric vehicles in the battery swap station. That is, all battery swap electric vehicles in the battery swap station will receive the battery swap information, but only the current battery swap electric vehicle matching the battery swap vehicle unique identification information will respond to the battery swap information. Specifically, corresponding operations are performed according to the battery swap stage information in the battery swap information, so that the current battery swap electric vehicle in the battery swap position automatically enters the battery swap state suitable for battery swap, thereby strengthening the control of battery swap and improving the battery swap efficiency.

[0112] Preferably, the battery swap station comprises a battery swap device.

[0113] The battery swap stage obtaining module comprises an operation state receiving unit and a battery swap stage generating unit.

[0114] The operation state receiving unit is configured to receive operation state information of the battery swap device performing battery swap operation on the current battery swap electric vehicle.

[0115] The battery swap stage generating unit is configured to generate battery swap stage information according to the operation state information.

[0116] Preferably, the battery swap stage information comprises battery swap start information and battery swap completion information.

[0117] The battery swap information broadcasting module is configured to broadcast battery swap information with the battery swap start information when the received operation state information is battery swap preparation; and / or the battery swap information broadcasting module is configured to broadcast battery swap information with the battery swap completion information when the received operation state information is battery swap completion.

[0118] Preferably, the battery replacement state monitoring system further comprises a vehicle information receiving module and a vehicle information monitoring module.

[0119] The vehicle information receiving module is configured to receive vehicle information sent by an electric vehicle entering the battery replacement station, wherein the vehicle information comprises vehicle unique identification information of the electric vehicle.

[0120] The vehicle information monitoring module is configured to determine whether the battery replacement vehicle unique identification information is one of the received vehicle information sent by the electric vehicle entering the battery replacement station, and if so, call the battery replacement information broadcasting module.

[0121] In this scheme, the vehicle information receiving module is configured to periodically receive vehicle information sent by an electric vehicle entering the battery replacement station.

[0122] The vehicle information monitoring module is configured to determine whether the battery replacement vehicle unique identification information is one of the received first vehicle information sent by the electric vehicle entering the battery replacement station.

[0123] The first vehicle information is vehicle information within a previous preset time when the vehicle unique identification information of the current battery replacement electric vehicle is received; or

[0124] The first vehicle information is vehicle information within a subsequent preset time when the vehicle unique identification information of the current battery replacement electric vehicle is received.

[0125] In this scheme, the monitoring system further comprises a second operation control module.

[0126] The second operation control module is configured to, after the battery replacement information broadcasting module broadcasts battery replacement information with the battery replacement start information, perform corresponding operations on the current battery replacement electric vehicle according to the received operation state information and high-voltage state information in the vehicle information sent by the current battery replacement electric vehicle received in the last period.

[0127] Preferably, the high-voltage state information comprises low high-voltage state information and high high-voltage state information.

[0128] The monitoring system further comprises a battery replacement prompting module.

[0129] The second operation control module is configured to, after the battery replacement information broadcasting module broadcasts battery replacement information with the battery replacement start information, when the received high-voltage state information is the low high-voltage state information and the received operation state information is battery replacement preparation, control the battery replacement equipment to start battery replacement operation, or control the battery replacement equipment to start battery replacement operation and simultaneously stop broadcasting the current battery replacement information.

[0130] and / or,

[0131] When the received high-voltage state information is the upper high-voltage state information and the received operation state information is battery replacement preparation, the battery replacement device is controlled to maintain a battery replacement preparation state, or the battery replacement device is controlled to maintain a battery replacement preparation state and prompt information is sent and / or current battery replacement information is broadcast continuously;

[0132] and / or,

[0133] When the received high-voltage state information is the lower high-voltage state information and the received operation state information is battery replacement completion, the battery replacement device is controlled to wait for a preset time;

[0134] The second operation control module is further configured to, after the battery replacement device is controlled to wait for a preset time, if the received high-voltage state information is still the lower high-voltage state information and the received operation state information is still battery replacement completion, call the battery replacement prompt module;

[0135] The battery replacement prompt module is configured to control the battery replacement device to repeat a battery installation action or prompt manual operation once.

[0136] Preferably, the battery replacement information broadcast module is configured to broadcast the battery replacement information periodically.

[0137] The positive progress effect of the present application is that, compared with the prior art, the battery replacement state monitoring method, switching method and system provided by the present application can automatically monitor whether the current state of the electric vehicle to be replaced in the battery replacement station is suitable for battery replacement. In the present application, the battery replacement station can generate corresponding battery replacement information according to the state of the electric vehicle to be replaced and notify all electric vehicles to be replaced through broadcasting. After receiving the battery replacement information sent by the battery replacement station and matching successfully, the electric vehicle can automatically perform corresponding operations according to the battery replacement information, so as to ensure that the electric vehicle is in a suitable state for battery replacement, guarantee the safety of battery replacement and provide the efficiency of battery replacement. BRIEF DESCRIPTION OF DRAWINGS

[0138] Figure 1 The flowchart of the battery replacement state monitoring method of embodiment 1 of the present application.

[0139] Figure 2 The flowchart of the battery replacement state switching method of embodiment 2 of the present application.

[0140] Figure 3 The flowchart of the battery replacement state monitoring method of embodiment 3 of the present application.

[0141] Figure 4 The flowchart of the battery replacement state monitoring method of embodiment 3 of the present application.

[0142] Figure 5 A module schematic diagram of the monitoring system of the battery replacement state according to Embodiment 4 of the present application.

[0143] Figure 6 A module schematic diagram of the switching system of the battery replacement state according to Embodiment 5 of the present application.

[0144] Figure 7 A module schematic diagram of the monitoring system of the battery replacement state according to Embodiment 6 of the present application. DETAILED DESCRIPTION

[0145] The present application will be further described in the following by way of examples, but the present application is not limited in the scope of the examples.

[0146] Embodiment 1

[0147] The present embodiment provides a monitoring method of a battery replacement state, which is applied to a battery replacement operation of an electric vehicle in a battery replacement station, as shown in the figure, the monitoring method comprises the following steps: Figure 1

[0148] Step 101, periodically sending vehicle information to the battery replacement station, the vehicle information comprising vehicle unique identification information and high-voltage state information of the vehicle.

[0149] The vehicle information comprises vehicle unique identification information, such as license plate number, vehicle frame number, etc., and the license plate number is preferred as the vehicle unique identification information in the present embodiment. In the present embodiment, the vehicle information further comprises high-voltage state information, which is used to represent the high-voltage state of the vehicle, and specifically comprises high-voltage state information and low-voltage state information. The high-voltage state is the unextinguished state of the vehicle, and the low-voltage state is the extinguished state of the vehicle.

[0150] In the present embodiment, after the electric vehicle enters the battery replacement station and establishes a communication connection with the battery replacement station, in order to avoid the failure of sending vehicle information, the vehicle information comprising the high-voltage state information of the vehicle is actively sent to the battery replacement station every interval of a preset time, so that the battery replacement station can know the current high-voltage state of the electric vehicle to be replaced in the station, thereby the battery replacement station can send corresponding control instructions according to the current high-voltage state of each electric vehicle to be replaced in the station, and at the same time, it can also confirm that the electric vehicle to be replaced and the battery replacement station are in a state of smooth communication, avoiding the situation that the battery replacement fails due to the failure of communication or other reasons, and ultimately ensuring that the electric vehicle can receive the battery replacement information matched with itself, further improving the efficiency of battery replacement.

[0151] Step 102, receiving the battery replacement information sent by the battery replacement station, the battery replacement information comprising battery replacement vehicle unique identification information and corresponding battery replacement phase information; wherein the battery replacement phase information comprises battery replacement start information and battery replacement completion information. ​

[0152] In implementation, the electric vehicle to be replaced entering the battery replacement station receives the replacement information broadcasted by the battery replacement station, that is, all the electric vehicles to be replaced in the battery replacement station receive the replacement information as long as the battery replacement station broadcasts once.

[0153] Step 103, judge whether the replacement vehicle unique identification information matches the vehicle unique identification information of the electric vehicle, if yes, execute step 104, if not, do not process, and return to execute step 102 when the battery replacement station sends the replacement information again.

[0154] In this embodiment, the battery replacement station broadcasts the replacement information once, and all the electric vehicles to be replaced in the battery replacement station receive the replacement information and execute step 103 to judge whether the replacement information is sent to the vehicle, when the replacement vehicle unique identification information matches the vehicle unique identification information of the electric vehicle, it means that the replacement information broadcasted this time is for the vehicle, and the battery replacement station will perform the replacement operation on the vehicle next time, so the vehicle continues to execute step 104, when the replacement vehicle unique identification information does not match the vehicle unique identification information of the electric vehicle, the electric vehicle ignores the received replacement information this time and does not process, and continues to wait for the next broadcast of the battery replacement station.

[0155] Step 104, judge whether the replacement state of the electric vehicle is in the state corresponding to the replacement phase information according to the replacement phase information, if not, execute step 105, if yes, do not process.

[0156] In this embodiment, after determining that the replacement vehicle unique identification information, i.e. the license plate number, in the received replacement information matches the license plate number of the vehicle, it is further judged whether the replacement state of the vehicle is consistent with the replacement phase information contained in the replacement information. Assuming that the replacement phase information contained in the replacement information is the replacement start information, the corresponding replacement state of the vehicle is the high-voltage lowering state, if it is the high-voltage raising state, execute step 105, if it is the high-voltage lowering state, do not process and maintain the original state; wherein the replacement phase information can also be the replacement completion information, which is not described here.

[0157] Step 105, perform corresponding operation according to the replacement phase information, and the flow ends.

[0158] The replacement state includes the high-voltage state of the electric vehicle, and the high-voltage state corresponding to the replacement start information is the high-voltage lowering state; the step of judging whether the replacement state of the electric vehicle is in the state corresponding to the replacement phase information according to the replacement phase information in step 104 specifically includes judging whether the electric vehicle is in the high-voltage lowering state according to the replacement start information, if not, the step of performing corresponding operation according to the replacement phase information in step 105 is specifically controlling the electric vehicle to lower the high voltage.

[0159] In this embodiment, before the electric vehicle changes the battery, it is determined whether the high voltage state of the electric vehicle matches the battery changing stage information, so as to ensure that the electric vehicle changes the battery in the low high voltage state. Specifically, when receiving the battery changing start information, it is determined whether the electric vehicle is in the low high voltage state, wherein the low high voltage state refers to the vehicle off state, and the high high voltage state refers to the vehicle on state. If it is determined that the electric vehicle is not in the low high voltage state, the electric vehicle is controlled to be in the low high voltage state, thereby realizing automatic control of the high voltage state of the electric vehicle before the battery changing, realizing the operation of controlling the electric vehicle to be in the low high voltage state without the driver, or ensuring that even if the driver does not switch the high voltage state to the low high voltage state, the electric vehicle is switched by the instruction to ensure the safety of battery changing and driving, and reduce the human risk.

[0160] In this embodiment, after the electric vehicle receives the battery changing information sent by the battery changing station and determines that the battery changing information is the instruction for the vehicle, different behaviors can be performed according to the current battery changing stage information of the electric vehicle. If the battery changing state of the electric vehicle does not correspond to the battery changing stage information, corresponding operation is performed to adjust the electric vehicle to the most suitable state for battery changing, thereby saving battery changing time, ensuring battery changing safety, and improving battery changing efficiency.

[0161] Embodiment 2

[0162] The embodiment provides a battery changing state switching method, which is applied to the battery changing operation of an electric vehicle in a battery changing station. The embodiment is basically the same as embodiment 1, and the difference is that, in the embodiment, when it is determined that the battery changing vehicle unique identification information matches the electric vehicle, corresponding operation is directly performed according to the battery changing stage information. That is, when the battery changing stage information is the battery changing start information, whether the electric vehicle is in the low high voltage state or not, the operation of forcibly lowering the high voltage is performed. As shown in the embodiment, the battery changing state switching method provided by the embodiment includes the following steps: Figure 2

[0163] Step 201: periodically sending vehicle information to the battery changing station, wherein the vehicle information includes vehicle unique identification information and high voltage state information of the vehicle.

[0164] The vehicle information includes vehicle unique identification information of the vehicle, such as license plate number, vehicle frame number, etc. In the embodiment, the license plate number is preferably used as the vehicle unique identification information. In the embodiment, the vehicle information further includes high voltage state information, which is used to represent the high voltage state of the vehicle, and specifically includes low high voltage state information and high high voltage state information. The high high voltage state refers to the vehicle on state, and the low high voltage state refers to the vehicle off state.

[0165] ​In the embodiment, after the electric vehicle enters the battery swap station and establishes a communication connection with the battery swap station, in order to avoid vehicle information sending failure, the vehicle information including the high-voltage state information of the vehicle is periodically and actively sent to the battery swap station according to a preset period, so that the battery swap station can know the current high-voltage state of the electric vehicle to be swapped in the station, thereby the battery swap station can send corresponding control instructions according to the current high-voltage state of each electric vehicle to be swapped in the station, and it can also be confirmed that the electric vehicle to be swapped and the battery swap station are in a communication smooth state, avoiding the situation that the battery swap fails due to communication failure or other reasons, and finally ensuring that the electric vehicle can receive the battery swap information matched with itself, further improving the efficiency of battery swap.

[0166] Step 202, receiving the battery swap information sent by the battery swap station, the battery swap information including the battery swap vehicle unique identification information and the corresponding battery swap phase information; wherein the battery swap phase information includes the battery swap start information and the battery swap completion information.

[0167] In specific implementation, the electric vehicle to be swapped entering the battery swap station will passively receive the battery swap information sent by the battery swap station in a broadcast manner, that is, as long as the battery swap station broadcasts once, all the electric vehicles to be swapped in the battery swap station will receive the battery swap information.

[0168] Step 203, judging whether the battery swap vehicle unique identification information matches the vehicle unique identification information of the electric vehicle, if yes, executing step 204, if no, not processing, and returning to execute step 202 when the battery swap station sends the battery swap information again.

[0169] In the embodiment, the battery swap station broadcasts the battery swap information once, and all the electric vehicles to be swapped in the battery swap station will receive the battery swap information and execute step 203 to judge whether the battery swap information is sent to the vehicle, when the battery swap vehicle unique identification information matches the vehicle unique identification information of the electric vehicle, it is indicated that the battery swap information broadcasted this time is for the vehicle, and the battery swap station will execute the battery swap operation on the vehicle next time, so the vehicle continues to execute step 204, when the battery swap vehicle unique identification information does not match the vehicle unique identification information of the electric vehicle, the electric vehicle ignores the received battery swap information this time and does not process, and continues to wait for the next broadcast of the battery swap station.

[0170] Step 204, performing corresponding operation according to the battery swap phase information. Specifically, when the battery swap phase information is the battery swap start information, controlling the electric vehicle to lower the high voltage.

[0171] The battery replacement state includes a high voltage state of the electric vehicle, and the high voltage state corresponding to the battery replacement start information is a lower high voltage state. In this embodiment, as long as the battery replacement stage information in the battery replacement information sent to the vehicle is the battery replacement start information, the electric vehicle is directly controlled to be forced to lower the high voltage. At this time, the current high voltage state of the electric vehicle can not be judged, that is, whether the current high voltage state of the electric vehicle is a lower high voltage state or an upper high voltage state, the electric vehicle is directly controlled to lower the high voltage, so as to ensure that the electric vehicle safely performs battery replacement in the lower high voltage state. The lower high voltage state refers to a vehicle off state, and the upper high voltage state refers to a vehicle on state. Of course, in other optional implementation manners, the action of controlling the electric vehicle to lower the high voltage can not be performed when the current high voltage state of the electric vehicle is in the lower high voltage state, which can avoid performing redundant control operations on the electric vehicle and reduce power consumption.

[0172] In this embodiment, when the battery replacement start information is received, the high voltage state of the electric vehicle is automatically controlled to be a lower high voltage state, so that the operation of controlling the electric vehicle to lower the high voltage is not required through the driver, or even if the driver does not switch the high voltage state to a lower high voltage state, the electric vehicle can be switched by the instruction to ensure the safety of battery replacement and driving and reduce human risks.

[0173] In this embodiment, after the electric vehicle receives the battery replacement information sent by the battery replacement station and determines that the battery replacement information is an instruction for the vehicle, corresponding operations can be performed according to the current battery replacement stage information of the electric vehicle, so as to adjust the electric vehicle to a state most suitable for battery replacement, thereby saving battery replacement time, ensuring battery replacement safety, and improving battery replacement efficiency.

[0174] Embodiment 3

[0175] The embodiment provides a battery replacement state monitoring method, which is applied to monitoring of battery replacement operation of an electric vehicle entering a battery replacement station by a battery replacement station. The battery replacement station includes at least one battery replacement position and battery replacement equipment. The electric vehicle includes a current battery replacement electric vehicle in the battery replacement position and other electric vehicles outside the battery replacement position. In this embodiment, an example of an electric vehicle entering the battery replacement station for battery replacement until the electric vehicle completes battery replacement and drives away from the battery replacement station is taken for description. The electric vehicle is the current battery replacement electric vehicle in the battery replacement position. For the convenience of subsequent description, the electric vehicle is marked as electric vehicle A.

[0176] As shown in FIG. 1, Figure 3 The battery replacement state monitoring method provided by the embodiment includes the following steps:

[0177] Step 301: receiving vehicle information sent by an electric vehicle entering a battery replacement station, wherein the vehicle information includes vehicle unique identification information and high voltage state information of the electric vehicle.

[0178] The vehicle information includes vehicle unique identification information of the vehicle, such as a license plate number, a vehicle identification number, and the like. In the embodiment, the license plate number is preferably used as the vehicle unique identification information. In addition, the vehicle information also includes high-voltage state information, which is used to represent the high-voltage state of the vehicle and specifically includes low high-voltage state information and high high-voltage state information. The high high-voltage state refers to a state in which the vehicle is not turned off, and the low high-voltage state refers to a state in which the vehicle is turned off. The battery swap station can obtain the information of the vehicle to be swapped in the battery swap station by receiving the vehicle information sent by the vehicle entering the battery swap station.

[0179] In the embodiment, the electric vehicles to be swapped in the battery swap station generally periodically send their own vehicle information. Therefore, the battery swap station correspondingly periodically receives the corresponding vehicle information. In step 301, the electric vehicles entering the battery swap station include all the electric vehicles to be swapped in the battery swap station, i.e., the current swapping electric vehicle A in the swapping position and other electric vehicles outside the swapping position. Further subdivision includes vehicles queuing for swapping, vehicles about to enter the swapping position, vehicles in the swapping position and preparing for swapping, and vehicles completing swapping. These electric vehicles generally periodically send vehicle information to the battery swap station after entering the battery swap station. Therefore, the battery swap station is in a state of continuously receiving vehicle information sent by the electric vehicles in the station.

[0180] In the embodiment, the electric vehicles to be swapped in the battery swap station send vehicle information including vehicle unique identification information of the vehicle to the battery swap station. This enables the battery swap station to obtain the vehicle information of the electric vehicles to be swapped in the station, realize overall monitoring of the vehicles in the station, and confirm that the electric vehicles to be swapped and the battery swap station are in a state of smooth communication. Ultimately, the electric vehicles can receive swapping information matched with themselves, thereby improving the safety of battery swapping.

[0181] In step 302, the vehicle unique identification information of the current swapping electric vehicle is received, and the vehicle unique identification information is used as the swapping vehicle unique identification information.

[0182] In the embodiment, after the electric vehicle enters the battery swap station, it does not necessarily enter the swapping position for battery swapping immediately. The reason is that a limited number of swapping positions for battery swapping are provided in the battery swap station. When the number of electric vehicles entering the station is greater than the number of swapping positions, the electric vehicles must queue for waiting. Since the electric vehicles queuing for waiting send their own vehicle information to the battery swap station, the battery swap station cannot identify the information of the electric vehicle about to enter the swapping position for battery swapping after receiving the vehicle information sent by the electric vehicles in the station. Therefore, step 302 is needed to determine the electric vehicle about to receive battery swapping, i.e., the aforementioned current swapping electric vehicle A in the swapping position.

[0183] In order to identify the electric vehicle A about to receive the battery swap operation, an identification device is usually installed on the channel near the battery swap position for entering the battery swap position. The license plate recognition device commonly used at the entrance of the garage can be used to identify the license plate number of the electric vehicle entering the battery swap position, so as to identify the electric vehicle A about to receive the battery swap operation. In the implementation, the time point at which the battery swap station receives the unique vehicle identification information of the current battery swap electric vehicle can be at least one of the following three situations: first, the identification device can send the license plate, i.e. the unique vehicle identification information, to the battery swap station after identifying the license plate and determining that the electric vehicle corresponding to the license plate is a vehicle allowed to be swapped, so as to complete the step of receiving the unique vehicle identification information of the current battery swap electric vehicle in step 302. Second, the control device inside the battery swap station can control the gate at the entrance of the battery swap position to open after the identification device identifies the license plate allowed to be swapped, so that the electric vehicle A can enter the battery swap position. The license plate, i.e. the unique vehicle identification information, is sent to the battery swap station by the control device corresponding to the gate after the gate is opened, so as to complete the step of receiving the unique vehicle identification information of the current battery swap electric vehicle in step 302. Third, the license plate, i.e. the unique vehicle identification information, can be sent to the battery swap station by the relevant detection device after the electric vehicle A enters the battery swap position and the relevant detection device detects that the electric vehicle A has been parked in place, so as to complete the step of receiving the unique vehicle identification information of the current battery swap electric vehicle in step 302. The so-called in place means that the electric vehicle is in a position suitable for battery swap operation. It should be noted that in the implementation, the identification device, the control device and the relevant detection device can be separate devices or can be integrated into one device. The specific implementation manner is not limited in the embodiment.

[0184] Step 303, receiving operation state information of the battery swap device for the current battery swap electric vehicle.

[0185] Step 304, generating battery swap stage information according to the operation state information.

[0186] In this embodiment, the battery swap station is provided with a battery swap device for performing battery swap operation on the electric vehicle. After the electric vehicle enters the battery swap position, the battery swap device will feed back information representing the entering of the battery swap state to the battery swap station, such as battery swap preparation, indicating that the battery swap device can start to perform the battery swap operation. During the whole process of the battery swap operation on the electric vehicle, the battery swap device will always feed back various operation state information to the battery swap station. According to the operation state information of the current battery swap electric vehicle A, the battery swap station can obtain the battery swap stage information of the current battery swap electric vehicle A, that is, the current battery swap stage of the current battery swap electric vehicle A, so as to complete the subsequent control operation. After the completion of the battery swap operation, the battery swap device will also feed back information representing the completion of the battery swap state to the battery swap station, indicating that the battery swap device has completed a period of battery swap operation, that is, the electric vehicle A currently located in the battery swap position has completed the battery swap and can drive away from the battery swap position.

[0187] In step 305, the battery swap information of the current battery swap electric vehicle is generated according to the battery swap vehicle unique identification information and the battery swap stage information. The battery swap stage information includes battery swap start information and battery swap completion information.

[0188] In this embodiment, for the electric vehicle preparing for battery swap, when the battery swap device prepares to perform battery swap operation on the electric vehicle A located in the battery swap position, in order to ensure that the high voltage state of the electric vehicle A is the lower high voltage state suitable for battery swap, the battery swap station needs to ensure that the electric vehicle A is in the lower high voltage state before formally starting the battery swap operation. By performing step 305, battery swap information for the electric vehicle A located in the battery swap position can be generated. The battery swap information includes the vehicle unique identification information of the electric vehicle A and the corresponding battery swap stage information. The electric vehicle A refers to the electric vehicle about to accept the battery swap operation on the battery swap position. The corresponding battery swap stage information refers to the battery swap start information. For the electric vehicle completing the battery swap, the electric vehicle has completed the battery swap preparation and drives away from the battery swap station. At this time, the electric vehicle is in a state that can be operated by the owner to the high voltage state, so that it can start and drive away from the battery swap station.

[0189] In step 306, it is judged whether the battery swap vehicle unique identification information is one of the first vehicle information sent by the electric vehicle entering the battery swap station. If yes, step 307 is performed. If no, it means that an abnormality occurs and an abnormality processing procedure needs to be entered.

[0190] The first vehicle information can be the vehicle information received by the battery swap station one period before the step of determining whether the unique identification information of the battery swap vehicle is the first vehicle information sent by the electric vehicle entering the battery swap station; the first vehicle information can also be the vehicle information in a preset time before the step 302 of receiving the unique identification information of the current battery swap electric vehicle; the first vehicle information can also be the vehicle information in a preset time after the step 302 of receiving the unique identification information of the current battery swap electric vehicle.

[0191] Since the battery swap station needs to send instructions to the electric vehicle A about to perform the battery swap operation, it is important to determine whether the electric vehicle A about to perform the battery swap operation maintains a communication state with the battery swap station. In the specific implementation process, each electric vehicle entering the battery swap station for battery swap will periodically send its vehicle information to the battery swap station, and the battery swap station will receive the vehicle information, but not process it in real time. Assuming that the electric vehicle A and the battery swap station maintain a communication state all the time, the battery swap station will always receive the vehicle information sent by the electric vehicle A from the time the electric vehicle A enters the battery swap station to the time the electric vehicle A drives into the battery swap position. When the battery swap station needs to send instructions to the electric vehicle A about to perform the battery swap operation, i.e., the current battery swap electric vehicle in the battery swap position, it needs to determine whether the electric vehicle A about to perform the battery swap operation maintains a communication state with the battery swap station. Specifically, the battery swap station only broadcasts the battery swap information to the current battery swap electric vehicle A in the battery swap position before determining whether the first vehicle information received contains the unique identification information of the battery swap vehicle, so as to quickly determine whether the electric vehicle A and the battery swap station maintain a communication state, thereby ensuring that the electric vehicle A about to perform the battery swap operation can receive the instructions sent by the battery swap station. If the current battery swap electric vehicle sends its vehicle information to the battery swap station, the battery swap information is directly broadcasted; if not, it means that the current battery swap electric vehicle A may have a communication failure and cannot establish a normal communication connection with the battery swap station, at which time an abnormal processing process needs to be entered, for example, warning information can be sent to remind the vehicle owner and the battery swap station operator. In this case, the battery swap station operator may need to intervene to perform the subsequent battery swap operation. The warning information can be a warning light, a display of relevant warning words on an electronic display screen, a beeping sound, etc.

[0192] In this embodiment, by judging whether the vehicle unique identification information of the current battery swapping electric vehicle A in the state of battery swapping is contained in the vehicle information received in the last sending period before the step of judging whether the unique identification information of the battery swapping vehicle is one of the first vehicle information sent by the received electric vehicle entering the battery swapping station, it can be more accurately judged whether the electric vehicle A about to perform the battery swapping operation is in communication state with the battery swapping station. For example, the period of sending the vehicle information by the electric vehicle is 60 seconds, so the battery swapping station only needs to query whether the vehicle unique identification information of the identified electric vehicle A in the state of battery swapping is contained in the vehicle information received in the last 60 seconds. In other optional implementation manners, such as the case that the electric vehicle A passes through the gate to enter the battery swapping position, the control device corresponding to the gate will send the license plate, i.e., the vehicle unique identification information, to the battery swapping station after the gate is opened, and it can also be judged whether the vehicle information containing the vehicle unique identification information of the identified current battery swapping electric vehicle A in the state of battery swapping is received in a sending period before or after the vehicle unique identification information is received by the battery swapping station. Since it takes a certain time for an electric vehicle to enter the battery swapping position to the completion of the battery swapping and then to drive away from the battery swapping position, the vehicle information received by the battery swapping station in a sending period after the vehicle unique identification information of the current battery swapping electric vehicle is received is used for judgment, and the efficiency of the battery swapping operation is not affected.

[0193] In step 307, the battery swapping information is periodically broadcasted.

[0194] In this embodiment, when the received operation state information is the battery swapping preparation, the battery swapping information broadcasted in step 307 is the battery swapping information with the battery swapping start information; when the received operation state information is the battery swapping completion, the battery swapping information broadcasted in step 307 is the battery swapping information with the battery swapping completion information.

[0195] In this embodiment, when the operation state information fed back by the battery swapping device to the battery swapping station is the battery swapping preparation, it indicates that the current battery swapping electric vehicle A just starts the battery swapping, i.e., is in the battery swapping start stage, at this time, the battery swapping information with the battery swapping start information is broadcasted. Similarly, when the operation state information fed back by the battery swapping device to the battery swapping station is the battery swapping completion, it indicates that the current battery swapping electric vehicle A has completed the battery swapping, i.e., is in the battery swapping completion stage, at this time, the battery swapping information with the battery swapping completion information is broadcasted. In this embodiment, different battery swapping stage information can be generated according to the operation state information, so that the current battery swapping electric vehicle A can further automatically perform the corresponding operation according to the current different battery swapping stage information.

[0196] In this embodiment, since the battery swapping information is sent via broadcast, the battery swapping information includes the unique vehicle identification information of electric vehicle A and the corresponding battery swapping stage information. The unique vehicle identification information is used to enable the electric vehicle receiving the battery swapping information to determine the target of the battery swapping information. That is, the electric vehicle determines whether the battery swapping information is sent to its own vehicle by using the unique vehicle identification information contained in the battery swapping information.

[0197] Step 308: Based on the received operation status information and the high voltage status information in the vehicle information sent by the current battery-swapping electric vehicle in the most recent cycle, perform the corresponding operation on the current battery-swapping electric vehicle, and the process ends.

[0198] In this embodiment, for the electric vehicle A currently in the swapping potential state, in order to ensure that the high voltage state of the electric vehicle is in a low-voltage state suitable for swapping, the swapping station needs to ensure that the electric vehicle is in a low-voltage state before officially starting the swapping operation. After broadcasting the swapping information with swapping start information, the electric vehicle A currently in the swapping potential state is given a one-cycle response time, that is, waiting for the electric vehicle A to automatically control itself to be in a low-voltage state, i.e., a state suitable for swapping, so that the swapping equipment can safely swap the battery. The electric vehicle A currently in the swapping potential state sends its vehicle information, including the current high voltage state information, to the swapping station every cycle. In this embodiment, the timing of obtaining the high voltage state information from the vehicle information sent by the electric vehicle A ensures that the swapping operation is performed as soon as the electric vehicle A is in a suitable swapping state, which can improve the swapping efficiency.

[0199] like Figure 4 As shown, depending on the different combinations of high-voltage status information and operating status information, step 308 specifically includes the following situations:

[0200] Step 3081: When the received high-voltage status information is "low-voltage status information" and the received operation status information is "battery swapping preparation," control the battery swapping equipment to start the battery swapping operation, and the process ends. In other optional implementation methods, while controlling the battery swapping equipment to start the battery swapping operation, the broadcast of the current battery swapping information can also be stopped.

[0201] Step 3082: When the received high-voltage status information is "upgraded high-voltage status information" and the received operation status information is "battery swapping ready," control the battery swapping equipment to maintain the battery swapping ready state, and the process ends. Alternatively, in other optional implementations, while controlling the battery swapping equipment to maintain the battery swapping ready state, prompt information and / or continuously broadcast the current battery swapping information can also be issued.

[0202] Step 3083, when the received high voltage state information is the low high voltage state information and the received operation state information is the battery replacement completion, the control battery replacement equipment waits for a preset time, and then step 3084 is executed.

[0203] Step 3084, if the received high voltage state information is still the low high voltage state information and the received operation state information is still the battery replacement completion, the control battery replacement equipment repeats the battery installation action or prompts manual operation once, and the flow ends.

[0204] In this embodiment, the battery replacement station controls the battery replacement equipment to perform different battery replacement operations through the received high voltage state information and operation state information, to ensure the accuracy of the operation. For the case that the high voltage state information is the low high voltage state information and the operation state information is the battery replacement preparation, it is indicated that the current battery replacement electric vehicle A in the battery replacement position has been adjusted to a state suitable for battery replacement according to the battery replacement information broadcast by the battery replacement station, at this time, it is safe enough to control the battery replacement equipment to replace the battery, in order to save the workload of the battery replacement station and improve the resource utilization, at this time, the current battery replacement information can be stopped broadcasting. For the case that the high voltage state information is the high high voltage state information and the operation state information is the battery replacement preparation, it is indicated that the current battery replacement electric vehicle A in the battery replacement position has not been adjusted to a state suitable for battery replacement after receiving the battery replacement information broadcast by the battery replacement station with the battery replacement start information, at this time, it is not safe to replace the battery, so the battery replacement equipment is not allowed to replace the battery, at this time, the battery replacement equipment needs to be controlled to maintain in the battery replacement preparation state, and corresponding prompt information can also be issued to remind the on-site staff to handle manually. For the case that the high voltage state information is the low high voltage state information and the operation state information is the battery replacement completion, if the current battery replacement electric vehicle in the battery replacement position has completed the battery replacement at this time, the electric vehicle will be driven by the owner to be in the high high voltage state and leave the battery replacement position after waiting for a preset time, if the high voltage state information is still the low high voltage state information and the operation state information is the battery replacement completion after waiting for a preset time, a fault may occur, such as an abnormality of the battery replacement equipment, the real situation is that the battery replacement is not completed, at this time, the battery replacement equipment can be controlled to install the battery or prompt manual installation of the battery or check the equipment, so as to ensure the effectiveness of the battery replacement operation.

[0205] The monitoring method provided in the embodiment can identify the vehicle unique identification information of the current battery replacement electric vehicle in the battery replacement station through the identification device in the battery replacement station and send the information to the battery replacement station. The battery replacement station receives the vehicle unique identification information, obtains the battery replacement stage information, and generates the battery replacement information for the current battery replacement electric vehicle A according to the foregoing information, and then sends the information to all the electric vehicles to be replaced in the battery replacement station through broadcasting. That is, all the electric vehicles to be replaced in the battery replacement station will receive the battery replacement information, but only the current battery replacement electric vehicle A matching the battery replacement vehicle unique identification information will respond to the battery replacement information. Specifically, corresponding operations are performed according to the battery replacement stage information in the battery replacement information, so that the current battery replacement electric vehicle A in the battery replacement position automatically enters the battery replacement state suitable for battery replacement, the control of battery replacement is strengthened, the safety of battery replacement is ensured, and the efficiency of battery replacement is improved.

[0206] Embodiment 4

[0207] The embodiment provides a battery replacement state monitoring system. The monitoring system is applied to battery replacement operation of an electric vehicle in a battery replacement station. As shown in the figure, the monitoring system comprises a vehicle information sending module 41, a battery replacement information receiving module 42, a vehicle matching module 43, a battery replacement stage matching module 44, and a first operation control module 45. Figure 5

[0208] The vehicle information sending module 41 is used for periodically sending vehicle information to the battery replacement station. The vehicle information comprises vehicle unique identification information and high-voltage state information.

[0209] The vehicle information comprises vehicle unique identification information, for example, a license plate number and a vehicle frame number, and the license plate number is preferably used as the vehicle unique identification information in the embodiment. In the embodiment, the vehicle information further comprises high-voltage state information, which is used to represent the high-voltage state of the vehicle and specifically comprises high-voltage state information and low-voltage state information. The high-voltage state refers to the state that the vehicle is not turned off, and the low-voltage state refers to the state that the vehicle is turned off.

[0210] In the embodiment, after the electric vehicle enters the battery replacement station and establishes a communication connection with the battery replacement station, in order to avoid vehicle information sending failure, the vehicle information comprising the high-voltage state information of the vehicle is actively sent to the battery replacement station every interval of a preset time. The battery replacement station can obtain the current high-voltage state of the electric vehicle to be replaced in the station, so that the battery replacement station can send corresponding control instructions according to the current high-voltage state of each electric vehicle to be replaced in the station. At the same time, it can also confirm that the electric vehicle to be replaced and the battery replacement station are in a state of smooth communication, avoid the situation that information sending failure leads to battery replacement failure due to communication failure or other reasons, and ultimately ensure that the electric vehicle can receive the battery replacement information matching itself, thereby further improving the efficiency of battery replacement. ​

[0211] The battery swap information receiving module 42 is configured to receive the battery swap information sent by the battery swap station, and the battery swap information comprises battery swap vehicle unique identification information and corresponding battery swap stage information. The battery swap stage information comprises battery swap start information and battery swap completion information.

[0212] In a specific implementation, the electric vehicle to be swapped in the battery swap station passively receives the battery swap information sent by the battery swap station in a broadcast manner, that is, as long as the battery swap station broadcasts once, all the electric vehicles to be swapped in the battery swap station receive the battery swap information.

[0213] The vehicle matching module 43 is configured to determine whether the battery swap vehicle unique identification information matches the electric vehicle, and if yes, the battery swap stage matching module 44 is invoked; if no, no processing is performed, and the battery swap information receiving module 42 is invoked again when the battery swap station sends the battery swap information again.

[0214] In this embodiment, the battery swap station broadcasts the battery swap information once, and all the electric vehicles to be swapped in the battery swap station receive the battery swap information and are determined by the vehicle matching module 43. It is determined whether the battery swap information is sent to the vehicle. When the battery swap vehicle unique identification information matches the vehicle unique identification information of the electric vehicle, it is determined that the battery swap information broadcast this time is for the vehicle, and the battery swap station needs to perform the battery swap operation on the vehicle. Therefore, the vehicle continues to invoke the battery swap stage matching module 44. When the battery swap vehicle unique identification information does not match the vehicle unique identification information of the electric vehicle, the electric vehicle ignores the received battery swap information this time and does not perform processing, and continues to wait for the next broadcast of the battery swap station.

[0215] The battery swap stage matching module 44 is configured to determine, according to the battery swap stage information, whether the battery swap state of the electric vehicle is in a state corresponding to the battery swap stage information. If not, the first operation control module 45 is invoked; if yes, no processing is performed.

[0216] In this embodiment, after it is determined that the battery swap vehicle unique identification information (vehicle license plate number) in the received battery swap information matches the vehicle license plate number of the vehicle, it is further determined whether the battery swap state of the vehicle is consistent with the battery swap stage information contained in the battery swap information. It is assumed that the battery swap stage information contained in the battery swap information is the battery swap start information, and the battery swap state corresponding to the vehicle is the high-voltage lowering state. If the high-voltage raising state is invoked, the first operation control module 45 is invoked. If the high-voltage lowering state is not processed, the original state is maintained. The battery swap stage information can also be the battery swap completion information, which is not described herein.

[0217] The first operation control module 45 is configured to perform corresponding operations according to the battery swap stage information.

[0218] Among them, the battery swapping status includes the high voltage status of the electric vehicle, and the high voltage status corresponding to the battery swapping start information is the low high voltage status; the battery swapping stage matching module 44 determines whether the battery swapping status of the electric vehicle is in the state corresponding to the battery swapping stage information, specifically including: determining whether the electric vehicle is in the low high voltage status according to the battery swapping start information; if not, the first operation control module 5 performs the corresponding operation according to the battery swapping stage information, specifically controlling the electric vehicle to lower the high voltage.

[0219] In this embodiment, before swapping the battery of an electric vehicle, it is first determined whether the high-voltage state of the electric vehicle matches the battery swapping stage information, thereby ensuring that the electric vehicle performs the battery swapping in a low-voltage state. Specifically, upon receiving the battery swapping start information, it is determined whether the electric vehicle is in a low-voltage state, where the high-voltage state means the vehicle is turned off, and conversely, the high-voltage state means the vehicle is not turned off. If it is determined that the electric vehicle is not in a low-voltage state, the high-voltage state of the electric vehicle is controlled to be low. This achieves automatic control of the electric vehicle's high-voltage state to a low-voltage state before battery swapping, thus eliminating the need for the driver to control the electric vehicle to lower the high-voltage state, or ensuring that even if the driver does not switch the high-voltage state to a low-voltage state, the electric vehicle can automatically switch by command, ensuring the safety of battery swapping and driving, and reducing human risk.

[0220] In this embodiment, after receiving the battery swapping information sent by the battery swapping station and determining that the battery swapping information is an instruction for the vehicle, the electric vehicle can perform different actions according to the current battery swapping stage information of the electric vehicle. If the battery swapping status of the electric vehicle does not correspond to the battery swapping stage information, corresponding operations will be performed to adjust the electric vehicle to the most suitable battery swapping state, thereby saving battery swapping time, ensuring battery swapping safety, and improving battery swapping efficiency.

[0221] Example 5

[0222] This embodiment provides a battery swapping state switching system applied to electric vehicles performing battery swapping operations at a battery swapping station. This embodiment is basically the same as Embodiment 4, except that in this embodiment, when determining whether the unique identification information of the battery swapping vehicle matches that of the electric vehicle, the corresponding operation is performed directly based on the battery swapping stage information. That is, when the battery swapping stage information is battery swapping start information, a forced high-voltage downscaling operation will be performed regardless of whether the electric vehicle is already in a high-voltage downscaling state. Figure 6 As shown, the battery swapping state switching system provided in this embodiment includes: a vehicle information sending module 51, a battery swapping information receiving module 52, a vehicle matching module 53, and an operation control module 54.

[0223] The vehicle information sending module 51 is used to periodically send vehicle information to the battery swapping station. The vehicle information includes the vehicle's unique identification information and high voltage status information.

[0224] The vehicle information includes vehicle unique identification information of the vehicle, such as a license plate number, a vehicle frame number, and the like, and preferably the license plate number is used as the vehicle unique identification information in the embodiment. In the embodiment, the vehicle information further includes high-voltage state information, which is used to represent the high-voltage state of the vehicle and specifically includes lower high-voltage state information and upper high-voltage state information. The upper high-voltage state refers to a state in which the vehicle is not turned off, and the lower high-voltage state refers to a state in which the vehicle is turned off.

[0225] In the embodiment, after the electric vehicle enters the battery swap station and establishes a communication connection with the battery swap station, in order to avoid a failure in sending the vehicle information, the vehicle information including the high-voltage state information of the vehicle is periodically and actively sent to the battery swap station according to a preset period. This can enable the battery swap station to learn the current high-voltage state of the electric vehicle to be swapped in the station, so that the battery swap station can send corresponding control instructions according to the current high-voltage state of each electric vehicle to be swapped in the station. At the same time, it can also be confirmed that the electric vehicle to be swapped and the battery swap station are in a state of smooth communication, so as to avoid a situation in which the information sending fails due to a communication failure or other reasons, thereby causing a failure in the battery swap. Ultimately, it can be ensured that the electric vehicle can receive the battery swap information matched with itself, and the efficiency of the battery swap is further improved.

[0226] The battery swap information receiving module 52 is configured to receive the battery swap information sent by the battery swap station. The battery swap information includes battery swap vehicle unique identification information and corresponding battery swap phase information. The battery swap phase information includes battery swap start information and battery swap completion information.

[0227] In specific implementation, the electric vehicle to be swapped that enters the battery swap station passively receives the battery swap information sent by the battery swap station in a broadcast manner, that is, as long as the battery swap station broadcasts once, all the electric vehicles to be swapped in the battery swap station will receive the battery swap information.

[0228] The vehicle matching module 53 is configured to determine whether the battery swap vehicle unique identification information matches the vehicle unique identification information of the electric vehicle. If yes, the operation control module 54 is called. If no, no processing is performed, and the battery swap information receiving module 52 is called again when the battery swap station sends the battery swap information again.

[0229] In the embodiment, each time the battery swap station broadcasts the battery swap information, all the electric vehicles to be swapped in the battery swap station will receive the battery swap information and determine whether the battery swap information is sent to the vehicle by the vehicle matching module 53. When the battery swap vehicle unique identification information matches the vehicle unique identification information of the electric vehicle, it is indicated that the battery swap information broadcast this time is for the vehicle, and the battery swap station will perform the battery swap operation on the vehicle. Therefore, the vehicle continues to call the operation control module 54. When the battery swap vehicle unique identification information does not match the vehicle unique identification information of the electric vehicle, the electric vehicle ignores the received battery swap information this time and does not perform processing, and continues to wait for the next broadcast of the battery swap station.

[0230] The operation control module 54 is configured to perform corresponding operation according to the battery swap phase information. Specifically, when the battery swap phase information is the battery swap start information, the electric vehicle is controlled to be in the high-voltage-off state.

[0231] The battery swap state includes the high-voltage state of the electric vehicle, and the high-voltage state corresponding to the battery swap start information is the high-voltage-off state. In this embodiment, as long as the battery swap phase information in the received battery swap information sent to the vehicle is the battery swap start information, the electric vehicle is directly controlled to be in the high-voltage-off state. At this time, the current high-voltage state of the electric vehicle can not be determined, that is, whether the current high-voltage state of the electric vehicle is the high-voltage-off state or the high-voltage-on state, the electric vehicle is directly controlled to be in the high-voltage-off state, so as to ensure that the electric vehicle is in the high-voltage-off state and safely performs the battery swap. The high-voltage-off state refers to the vehicle-off state, and the high-voltage-on state refers to the vehicle-on state. Of course, in other optional implementation manners, the electric vehicle can not be controlled to be in the high-voltage-off state when the current high-voltage state of the electric vehicle is in the high-voltage-off state, so as to avoid performing redundant control operation on the electric vehicle and reduce power consumption.

[0232] In this embodiment, when the battery swap start information is received, the high-voltage state of the electric vehicle is automatically controlled to be in the high-voltage-off state, so as to avoid controlling the electric vehicle to be in the high-voltage-off state by the driver, or to ensure that even when the driver does not switch the high-voltage state to the high-voltage-off state, the electric vehicle can be switched by the instruction, so as to ensure the safety of the battery swap and driving and reduce human risks.

[0233] In this embodiment, after the electric vehicle receives the battery swap information sent by the battery swap station and determines that the battery swap information is the instruction for the vehicle, the electric vehicle can be adjusted to the most suitable state for the battery swap according to the current battery swap phase information of the electric vehicle, so as to save the battery swap time, ensure the safety of the battery swap, and improve the efficiency of the battery swap.

[0234] Embodiment 6

[0235] This embodiment provides a battery swap state monitoring system, which is applied to the monitoring of the battery swap operation of the electric vehicle entering the battery swap station by the battery swap station. The battery swap station includes at least one battery swap position and battery swap equipment. The electric vehicle includes a current battery swap electric vehicle in the battery swap position and other electric vehicles outside the battery swap position. In this embodiment, the battery swap operation of an electric vehicle entering the battery swap station is taken as an example for description. The electric vehicle is the current battery swap electric vehicle in the battery swap position. For the convenience of subsequent description, the electric vehicle is marked as electric vehicle A.

[0236] As Figure 7As shown, the battery replacement state monitoring system provided by the embodiment includes a vehicle information receiving module 61, a vehicle information obtaining module 62, a battery replacement stage obtaining module 63, a battery replacement information generating module 64, a vehicle information monitoring module 65, a battery replacement information broadcasting module 66, a second operation control module 67, and a battery replacement prompting module 68.

[0237] The vehicle information receiving module 61 is configured to receive vehicle information sent by an electric vehicle entering the battery replacement station, and the vehicle information includes vehicle unique identification information and high-voltage state information of the electric vehicle.

[0238] The vehicle information includes vehicle unique identification information, such as a license plate number and a vehicle frame number, and in the embodiment, the license plate number is preferably used as the vehicle unique identification information. In addition, the vehicle information also includes high-voltage state information, which is used to represent the high-voltage state of the vehicle and specifically includes high-voltage state information and low-voltage state information. The high-voltage state refers to the state of the vehicle not being turned off, and the low-voltage state refers to the state of the vehicle being turned off. The battery replacement station can learn the situation of the vehicle to be replaced in the battery replacement station by receiving the vehicle information sent by the vehicle entering the battery replacement station.

[0239] In the embodiment, the electric vehicle to be replaced in the battery replacement station usually sends its own vehicle information in a periodic manner, and therefore, the battery replacement station correspondingly receives the corresponding vehicle information periodically. In the vehicle information receiving module 61, the electric vehicle entering the battery replacement station includes all the electric vehicles to be replaced in the battery replacement station, i.e., the current replacement electric vehicle A in the battery replacement position and other electric vehicles outside the battery replacement position, which are further divided into vehicles waiting for replacement, vehicles about to enter the battery replacement position, vehicles in the battery replacement position for replacement preparation, and vehicles after replacement. These electric vehicles usually periodically send vehicle information to the battery replacement station after entering the battery replacement station, so that the battery replacement station is in a state of continuously receiving vehicle information sent by the electric vehicle in the station.

[0240] In the embodiment, the electric vehicle to be replaced entering the battery replacement station sends the vehicle information including the vehicle unique identification information to the battery replacement station, so that the battery replacement station can obtain the vehicle information of the electric vehicle to be replaced in the station, realize overall monitoring of the vehicles in the station, and also confirm that the electric vehicle to be replaced and the battery replacement station are in a state of smooth communication, so as to ultimately ensure that the electric vehicle can receive the replacement information matched with itself, thereby improving the safety of the replacement.

[0241] The vehicle information obtaining module 62 is configured to receive the vehicle unique identification information of the current replacement electric vehicle and use the vehicle unique identification information as the replacement vehicle unique identification information.

[0242] In this embodiment, the electric vehicle entering the battery swap station does not necessarily enter the battery swap position for battery swap immediately. The reason is that a limited number of battery swap positions for battery swap operation of the electric vehicle are provided in the battery swap station. When the number of electric vehicles entering the station is greater than the number of battery swap positions, the electric vehicles will have to wait in line. Since the electric vehicles in the line will send their vehicle information to the battery swap station, the battery swap station cannot identify the information of the electric vehicle entering the battery swap position for battery swap operation after receiving the vehicle information sent by the electric vehicles in the station. Therefore, the vehicle information acquisition module 62 is needed to determine the electric vehicle about to receive battery swap operation, i.e., the aforementioned current battery swap electric vehicle A in the battery swap position.

[0243] In order to identify the electric vehicle A about to receive battery swap operation, an identification device can be installed on the channel entering the battery swap position near the battery swap position. A license plate recognition device commonly used at the entrance of a garage can be used to identify the license plate number of the electric vehicle entering the battery swap position, so as to identify the electric vehicle A about to receive battery swap operation. In specific implementation, the time point at which the battery swap station receives the vehicle unique identification information of the current battery swap electric vehicle can be at least one of the following three situations: first, the identification device can send the license plate, i.e., the vehicle unique identification information, to the battery swap station after identifying the license plate and determining that the electric vehicle corresponding to the license plate is a vehicle allowed to swap battery, so as to achieve that the battery swap station receives the vehicle unique identification information of the current battery swap electric vehicle through the vehicle information acquisition module 62. Second, the control device inside the battery swap station can control the gate at the entrance of the battery swap position to open after the identification device identifies the license plate allowed to swap battery, so that the electric vehicle A can enter the battery swap position. The control device corresponding to the gate can send the license plate, i.e., the vehicle unique identification information, to the battery swap station after the gate is opened, so as to achieve that the battery swap station receives the vehicle unique identification information of the current battery swap electric vehicle through the vehicle information acquisition module 62. Third, the control device corresponding to the gate can send the license plate, i.e., the vehicle unique identification information, to the battery swap station after the electric vehicle A enters the battery swap position and the related detection device detects that the electric vehicle A has parked in place, so as to achieve that the battery swap station receives the vehicle unique identification information of the current battery swap electric vehicle through the vehicle information acquisition module 62. The so-called in place means that the electric vehicle is in a position suitable for battery swap operation. It should be noted that in specific implementation, the identification device, the control device, and the related detection device can be separate devices or can be integrated into one device. The specific implementation mode is not limited in this embodiment.

[0244] The battery swap stage acquisition module 63 includes an operation state receiving unit 631 and a battery swap stage generating unit 632. The operation state receiving unit 631 is configured to receive operation state information of the battery swap device for battery swap operation of the current battery swap electric vehicle. The battery swap stage generating unit 632 is configured to generate battery swap stage information according to the operation state information.

[0245] In this embodiment, the battery swap station is provided with a battery swap device for performing battery swap operation on the electric vehicle. After the electric vehicle enters the battery swap position, the battery swap device will feed back information representing the entering of the battery swap state to the battery swap station, such as battery swap preparation, indicating that the battery swap device can start to perform the battery swap operation. During the whole process of the battery swap operation on the electric vehicle, the battery swap device will continuously feed back various operation state information to the battery swap station. According to the operation state information of the current battery swap electric vehicle A, the battery swap station can obtain the battery swap stage information of the current battery swap electric vehicle A, that is, the current battery swap stage of the current battery swap electric vehicle A, so as to complete the subsequent control operation. After the completion of the battery swap operation, the battery swap device will also feed back information representing the completion of the battery swap state to the battery swap station, indicating that the battery swap device has completed a period of battery swap operation, that is, the electric vehicle A currently located in the battery swap position has completed the battery swap and can drive away from the battery swap position.

[0246] The battery swap information generation module 64 is configured to generate battery swap information of the current battery swap electric vehicle according to the battery swap vehicle unique identification information and the battery swap stage information, wherein the battery swap stage information comprises battery swap start information and battery swap completion information.

[0247] In this embodiment, for the electric vehicle preparing for battery swap, when the battery swap device prepares to perform battery swap operation on the electric vehicle A located in the battery swap position, in order to ensure that the high voltage state of the electric vehicle A is the lower high voltage state suitable for battery swap, the battery swap station needs to ensure that the electric vehicle A is in the lower high voltage state before formally starting the battery swap operation. The vehicle information monitoring module 65 can generate battery swap information of the electric vehicle A located in the battery swap position, which contains the vehicle unique identification information of the electric vehicle A and the corresponding battery swap stage information. The electric vehicle A here refers to the electric vehicle about to accept the battery swap operation on the battery swap position, and the corresponding battery swap stage information refers to the battery swap start information. For the electric vehicle completing the battery swap, the electric vehicle has completed the battery swap preparation and drives away from the battery swap station. At this time, the electric vehicle belongs to the state that can be operated by the owner to the high voltage state, so that it can start and drive away from the battery swap station.

[0248] The vehicle information monitoring module 65 is configured to determine whether the battery swap vehicle unique identification information is one of the first vehicle information sent by the electric vehicle entering the battery swap station. If yes, the battery swap information broadcasting module 66 is called, and if no, an abnormality occurs and abnormality processing is performed.

[0249] The first vehicle information can be the vehicle information monitored by the vehicle information monitoring module 65 before the unique identification information of the vehicle is received by the vehicle information acquisition module 62 at a previous period of time.

[0250] Since the battery swap station needs to send instructions to the electric vehicle A that is about to perform the battery swap operation, it is important to determine whether the electric vehicle A that is about to perform the battery swap operation maintains a communication state with the battery swap station. In the specific implementation process, each electric vehicle that enters the battery swap station for battery swap will periodically send its vehicle information to the battery swap station, and the battery swap station will receive the vehicle information, but not process it in real time. Assuming that the electric vehicle A and the battery swap station maintain a communication state all the time, the battery swap station will always receive the vehicle information sent by the electric vehicle A from the time the electric vehicle A enters the battery swap station to the time the electric vehicle A drives into the battery swap position. When the battery swap station needs to send instructions to the electric vehicle A that is about to perform the battery swap operation, i.e., the current battery swap electric vehicle in the battery swap position, it needs to determine whether the electric vehicle A that is about to perform the battery swap operation maintains a communication state with the battery swap station. Specifically, the battery swap station only broadcasts the battery swap information to the current battery swap electric vehicle A in the battery swap position before determining whether the unique identification information of the battery swap vehicle is included in the received first vehicle information, thereby quickly determining whether the electric vehicle A and the battery swap station maintain a communication state, so as to ensure that the electric vehicle A that is about to perform the battery swap operation can receive the instructions sent by the battery swap station. If the current battery swap electric vehicle sends its vehicle information to the battery swap station, the battery swap information is directly broadcasted. If not, it means that the current battery swap electric vehicle A may have a communication failure and cannot establish a normal communication connection with the battery swap station. At this time, an abnormal processing process needs to be entered, for example, a warning information can be sent to remind the owner and the operator of the battery swap station. In this case, the operator of the battery swap station may need to intervene to perform the subsequent battery swap operation. The warning information can be a warning light, a display of related warning words on an electronic display screen, a beeping sound, etc.

[0251] In this embodiment, by judging whether the vehicle unique identification information of the current battery swap electric vehicle A in the battery swap position is contained in the vehicle information received in the last sending cycle before the vehicle information monitoring module 65 is called, it can be more accurately judged whether the electric vehicle A about to perform the battery swap operation is in communication state with the battery swap station. For example, the cycle of the vehicle information sent by the electric vehicle is 60 seconds, so the battery swap station only needs to query whether the vehicle unique identification information of the electric vehicle A in the battery swap position is contained in the vehicle information received in the last 60 seconds. In other optional implementation manners, such as for the case that the electric vehicle A drives into the battery swap position after passing through the gate, the control device corresponding to the gate will send the license plate, i.e., the vehicle unique identification information, to the battery swap station, and it can also be judged whether the vehicle information containing the vehicle unique identification information of the current battery swap electric vehicle A in the battery swap position is received in a sending cycle before or after the vehicle unique identification information is received by the battery swap station. Since it takes a certain time for an electric vehicle to drive into the battery swap position to the completion of the battery swap and drive out of the battery swap position, the vehicle information received by the battery swap station in a sending cycle after the vehicle unique identification information of the current battery swap electric vehicle is received is used for judgment, and the efficiency of the battery swap operation will not be affected.

[0252] The battery swap information broadcasting module 66 is configured to periodically broadcast the battery swap information.

[0253] In this embodiment, when the received operation state information is the battery swap preparation, the battery swap information broadcasting module 66 broadcasts the battery swap information with the battery swap start information; when the received operation state information is specifically the battery swap completion, the battery swap information broadcasting module 66 broadcasts the battery swap information with the battery swap completion information.

[0254] In this embodiment, when the operation state information fed back by the battery swap device to the battery swap station is the battery swap preparation, it indicates that the current battery swap electric vehicle A just starts the battery swap, i.e., is in the battery swap start stage, at this time, the battery swap information with the battery swap start information is broadcast. Similarly, when the operation state information fed back by the battery swap device to the battery swap station is the battery swap completion, it indicates that the current battery swap electric vehicle A has completed the battery swap, i.e., is in the battery swap completion stage, at this time, the battery swap information with the battery swap completion information is broadcast. In this embodiment, different battery swap stage information can be generated according to the operation state information, so that the current battery swap electric vehicle A can further automatically perform the corresponding operation according to the current different battery swap stage information.

[0255] In this embodiment, the battery swap information is sent in a broadcast manner, and the battery swap information includes the vehicle unique identification information of the electric vehicle A and the corresponding battery swap stage information. The battery swap vehicle unique identification information is used to determine the object of the battery swap information by the electric vehicle receiving the battery swap information, i.e., the electric vehicle determines whether the battery swap information is sent to the vehicle by the battery swap vehicle unique identification information included in the battery swap information.

[0256] The second operation control module 67 is configured to perform corresponding operations on the current battery swap electric vehicle according to the received operation state information and the high-voltage state information in the vehicle information sent by the current battery swap electric vehicle in the last period after the battery swap information broadcast module 66 broadcasts the battery swap information with the battery swap start information.

[0257] In this embodiment, the battery swap station needs to ensure that the current battery swap electric vehicle A in the battery swap state is in the lower high-voltage state suitable for battery swap before formally starting the battery swap operation. After the battery swap information broadcast module 66 broadcasts the battery swap information with the battery swap start information, the current battery swap electric vehicle A in the battery swap state is given a response time of one period, i.e., waiting for the current battery swap electric vehicle A in the battery swap state to automatically control the vehicle to be in the lower high-voltage state suitable for battery swap, so as to be safely battery swapped by the battery swap device. The current battery swap electric vehicle A in the battery swap state sends the vehicle information including the current high-voltage state information to the battery swap station every period. In this embodiment, the time point of obtaining the high-voltage state information in the vehicle information sent by the current battery swap electric vehicle A ensures that the battery swap operation is performed on the current battery swap electric vehicle A in the suitable battery swap state as soon as possible, which can improve the battery swap efficiency.

[0258] In this embodiment, the second operation control module 67 is divided into the following cases according to different combinations of the high-voltage state information and the operation state information.

[0259] After the battery swap information broadcast module broadcasts the battery swap information with the battery swap start information, when the received high-voltage state information is the lower high-voltage state information and the received operation state information is the battery swap preparation, the second operation control module 67 is configured to control the battery swap device to start the battery swap operation. In other optional implementation manners, the second operation control module 67 can also be configured to control the battery swap device to start the battery swap operation and simultaneously stop broadcasting the current battery swap information.

[0260] When the received high-voltage state information is the upper high-voltage state information and the received operation state information is the battery swap preparation, the second operation control module 67 is configured to control the battery swap device to maintain the battery swap preparation state. In other optional implementation manners, the second operation control module 67 can also be configured to control the battery swap device to maintain the battery swap preparation state and simultaneously send prompt information and / or continuously broadcast the current battery swap information.

[0261] When the received high voltage state information is the low high voltage state information and the received operation state information is the battery replacement completion, the second operation control module 67 controls the battery replacement device to wait for a preset time, and after controlling the battery replacement device to wait for the preset time, if the received high voltage state information is still the low high voltage state information and the received operation state information is still the battery replacement completion, the battery replacement prompting module 68 is called.

[0262] The battery replacement prompting module 68 is configured to control the battery replacement device to repeatedly perform a battery installation action or prompt manual operation.

[0263] In the embodiment, the battery replacement station controls the battery replacement device to perform different battery replacement operations according to the received high voltage state information and operation state information, so as to ensure the accuracy of the operation. For the case that the high voltage state information is the low high voltage state information and the operation state information is the battery replacement preparation, it is indicated that the current battery replacement electric vehicle A in the battery replacement position has been adjusted to a state suitable for battery replacement according to the broadcast battery replacement information of the battery replacement station, at this time, it is safe enough to control the battery replacement device to perform battery replacement on the electric vehicle A, in order to save the workload of the battery replacement station and improve the resource utilization rate, at this time, the broadcast of the current battery replacement information can be stopped. For the case that the high voltage state information is the high high voltage state information and the operation state information is the battery replacement preparation, it is indicated that the current battery replacement electric vehicle A in the battery replacement position has not been adjusted to a state suitable for battery replacement after receiving the battery replacement information with the battery replacement start information broadcast by the battery replacement station, at this time, it is not safe to perform battery replacement operation on the electric vehicle A, therefore, the battery replacement device is not allowed to perform battery replacement operation on the electric vehicle A, at this time, the battery replacement device needs to be controlled to maintain in the battery replacement preparation state, and corresponding prompt information can also be issued to remind the on-site staff to perform manual processing. For the case that the high voltage state information is the low high voltage state information and the operation state information is the battery replacement completion, if the current battery replacement electric vehicle in the battery replacement position has completed battery replacement at this time, the electric vehicle will be driven by the vehicle owner to be in the high high voltage state and leave the battery replacement position after waiting for a preset time, if the high voltage state information is still the low high voltage state information and the operation state information is the battery replacement completion after waiting for a preset time, a fault may occur, for example, the battery replacement device has an abnormality, and the real situation is that the battery replacement has not been completed, at this time, the battery replacement device can be controlled to install a battery or prompt manual installation of a battery or inspection of the device, so as to ensure the effectiveness of the battery replacement operation.

[0264] The monitoring system provided by the embodiment can identify the vehicle unique identification information of the current battery replacement electric vehicle in the battery replacement station through the identification device in the battery replacement station and send the information to the battery replacement station. The battery replacement station receives the vehicle unique identification information, obtains the battery replacement stage information, and generates the battery replacement information for the current battery replacement electric vehicle A according to the foregoing information, and then sends the information to all the electric vehicles to be replaced in the battery replacement station through broadcasting. That is, all the electric vehicles to be replaced in the battery replacement station will receive the battery replacement information, but only the current battery replacement electric vehicle A matching the battery replacement vehicle unique identification information will respond to the battery replacement information. Specifically, corresponding operations are performed according to the battery replacement stage information in the battery replacement information, so that the current battery replacement electric vehicle A in the battery replacement position automatically enters the suitable battery replacement state, thereby strengthening the control of the battery replacement, ensuring the safety of the battery replacement, and improving the efficiency of the battery replacement.

[0265] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and these changes and modifications all fall within the protection scope of the present application.

Claims

1. A method for monitoring battery swapping status, characterized in that, The monitoring method is applied to electric vehicles performing battery swapping operations at battery swapping stations. The monitoring method includes: Receive battery swapping information sent by the battery swapping station, the battery swapping information including the unique identification information of the battery swapping vehicle and the corresponding battery swapping stage information; Determine whether the unique identification information of the battery swapping vehicle matches the electric vehicle. If so, determine whether the battery swapping status of the electric vehicle is in a state corresponding to the battery swapping stage information based on the battery swapping stage information. If it is not in a state corresponding to the battery swapping stage information, perform the corresponding operation based on the battery swapping stage information. The step of receiving the battery swapping information sent by the battery swapping station also includes: Send vehicle information to the battery swapping station, the vehicle information including the vehicle's unique identification information; The step of determining whether the unique identification information of the battery swapping vehicle matches the electric vehicle includes: determining whether the unique identification information of the battery swapping vehicle matches the unique identification information of the electric vehicle itself; The unique identification information of this vehicle is the vehicle information within a preset time period before the time the unique identification information of the battery swapping vehicle is sent; or, the unique identification information of this vehicle is the vehicle information within a preset time period after the time the unique identification information of the battery swapping vehicle is sent. The step of sending vehicle information to the battery swapping station includes: periodically sending the vehicle information to the battery swapping station.

2. The method for monitoring battery swapping status as described in claim 1, characterized in that, The battery swapping status includes the high-voltage status of the electric vehicle, and the battery swapping stage information includes battery swapping start information; the high-voltage status corresponding to the battery swapping start information is the low-voltage status. The step of determining whether the battery swapping status of the electric vehicle is in a state corresponding to the battery swapping stage information based on the battery swapping stage information includes: Based on the battery swap start information, determine whether the electric vehicle is in a high-voltage down state. If not, control the electric vehicle to down the high voltage.

3. The method for monitoring battery swapping status as described in claim 2, characterized in that, The vehicle information also includes high-voltage status information.

4. A method for switching battery swapping states, characterized in that, The switching method is applied to electric vehicles performing battery swapping operations at battery swapping stations. The switching method includes: Receive battery swapping information sent by the battery swapping station, the battery swapping information including the unique identification information of the battery swapping vehicle and the corresponding battery swapping stage information; Determine whether the unique identification information of the battery swapping vehicle matches the electric vehicle. If so, perform the corresponding operation based on the battery swapping stage information. The step of receiving the battery swapping information sent by the battery swapping station also includes: Send vehicle information to the battery swapping station, the vehicle information including the vehicle's unique identification information; The step of determining whether the unique identification information of the battery swapping vehicle matches the electric vehicle includes: determining whether the unique identification information of the battery swapping vehicle matches the unique identification information of the electric vehicle itself; The unique identification information of this vehicle is the vehicle information within a preset time period before the time the unique identification information of the battery swapping vehicle is sent; or, the unique identification information of this vehicle is the vehicle information within a preset time period after the time the unique identification information of the battery swapping vehicle is sent. The step of sending vehicle information to the battery swapping station includes: periodically sending the vehicle information to the battery swapping station.

5. The method for switching battery swapping states as described in claim 4, characterized in that, The battery swapping status includes the high-voltage status of the electric vehicle, and the battery swapping stage information includes battery swapping start information; the high-voltage status corresponding to the battery swapping start information is the low-voltage status. The steps for performing corresponding operations based on the battery swapping stage information include: When the battery swapping phase information is battery swapping start information, control the electric vehicle to reduce the high voltage.

6. The method for switching battery swapping states as described in claim 5, characterized in that, The vehicle information also includes high-voltage status information.

7. A method for monitoring battery swapping status, characterized in that, The monitoring method is applied to a battery swapping station to monitor the battery swapping operation of electric vehicles entering the station. The battery swapping station includes at least one swapping potential, and the electric vehicles include the electric vehicle currently swapping at the swapping potential and other electric vehicles outside the swapping potential. The monitoring method includes: Receive the unique vehicle identification information of the current battery-swapping electric vehicle, and use the unique vehicle identification information as the unique identification information of the battery-swapping vehicle; Obtain the battery swapping stage information of the current battery-swapping electric vehicle; The battery swapping information of the current electric vehicle is generated based on the unique identification information of the battery swapping vehicle and the battery swapping stage information; The battery swapping information was broadcast. The method for monitoring the battery swapping status also includes: The system receives vehicle information sent by electric vehicles entering the battery swapping station, including the vehicle's unique identification information. The step of broadcasting the battery swapping information includes, prior to: Determine whether the unique identification information of the battery swapping vehicle is one of the vehicle information received from the electric vehicle entering the battery swapping station; if so, broadcast the battery swapping information. The step of receiving vehicle information sent by electric vehicles entering the battery swapping station includes: periodically receiving vehicle information sent by electric vehicles entering the battery swapping station; The step of determining whether the unique identification information of the battery swapping vehicle is one of the vehicle information received from the electric vehicle entering the battery swapping station is: determining whether the unique identification information of the battery swapping vehicle is one of the first vehicle information received from the electric vehicle entering the battery swapping station; The first vehicle information is the vehicle information within a preset time period prior to the receipt of the unique vehicle identification information of the current battery-swapping electric vehicle; or, The first vehicle information is the vehicle information within a preset time period after receiving the unique vehicle identification information of the current battery-swapping electric vehicle.

8. The method for monitoring battery swapping status as described in claim 7, characterized in that, The battery swapping station includes battery swapping equipment; The step of obtaining the battery swapping stage information of the current battery swapping electric vehicle includes: Receive the operation status information of the battery swapping equipment performing battery swapping operation on the current battery-swapping electric vehicle; Battery swapping stage information is generated based on the operation status information.

9. The method for monitoring battery swapping status as described in claim 8, characterized in that, The battery swapping stage information includes battery swapping start information and battery swapping completion information; When the received operation status information is battery swapping preparation, the step of broadcasting the battery swapping information includes broadcasting battery swapping information with the battery swapping start information; And / or, when the received operation status information indicates that battery swapping is complete, the step of broadcasting the battery swapping information includes broadcasting battery swapping information containing the battery swapping completion information.

10. The method for monitoring battery swapping status as described in claim 9, characterized in that, Following the step of broadcasting the battery swapping information containing the battery swapping start information, the method further includes: Based on the received operation status information and the high voltage status information in the vehicle information sent by the current battery-swapping electric vehicle in the most recent cycle, corresponding operations are performed on the current battery-swapping electric vehicle.

11. The method for monitoring battery swapping status as described in claim 10, characterized in that, The high-pressure status information includes lower high-pressure status information and upper high-pressure status information; The step of performing corresponding operations on the current battery-swapping electric vehicle based on the received operation status information and the high-voltage status information in the vehicle information sent by the current battery-swapping electric vehicle in the most recent cycle includes: When the received high-voltage status information is the lower high-voltage status information and the received operation status information is battery swapping preparation, control the battery swapping equipment to start the battery swapping operation, or control the battery swapping equipment to start the battery swapping operation and simultaneously stop broadcasting the current battery swapping information; And / or, When the received high voltage status information is the upper high voltage status information and the received operation status information is battery swapping preparation, control the battery swapping equipment to maintain the battery swapping preparation state, or control the battery swapping equipment to maintain the battery swapping preparation state and simultaneously issue a prompt message and / or continuously broadcast the current battery swapping information. And / or, When the received high-voltage status information is the lower high-voltage status information and the received operation status information is that the battery swapping is completed, the battery swapping equipment is controlled to wait for a preset time. After the step of controlling the battery swapping equipment to wait for a preset time, the method further includes the following steps: if the received high voltage status information is still the low high voltage status information and the received operation status information is still battery swapping completed, the monitoring method further includes the following steps: controlling the battery swapping equipment to repeat the battery installation action once or prompting manual operation.

12. The method for monitoring battery swapping status as described in claim 7, characterized in that, The steps of broadcasting the battery swapping information include: periodically broadcasting the battery swapping information.

13. A monitoring system for battery swapping status, characterized in that, The monitoring system is applied to electric vehicles performing battery swapping operations at battery swapping stations. The monitoring system includes: a battery swapping information receiving module, a vehicle matching module, a battery swapping stage matching module, and a first operation control module. The battery swapping information receiving module is used to receive battery swapping information sent by the battery swapping station. The battery swapping information includes unique identification information of the battery swapping vehicle and corresponding battery swapping stage information. The vehicle matching module is used to determine whether the unique identification information of the battery swapping vehicle matches the electric vehicle. If so, the battery swapping stage matching module is invoked. The battery swapping stage matching module is used to determine whether the battery swapping status of the electric vehicle is in a state corresponding to the battery swapping stage information based on the battery swapping stage information. If it is not in a state corresponding to the battery swapping stage information, the first operation control module is invoked. The first operation control module is used to perform corresponding operations based on the battery swapping stage information; The monitoring system also includes a vehicle information transmission module; The vehicle information sending module is used to send vehicle information to the battery swapping station, and the vehicle information includes the vehicle's unique identification information. The vehicle matching module is used to determine whether the unique identification information of the battery swapping vehicle matches the unique identification information of the electric vehicle itself. The unique identification information of this vehicle is the vehicle information within a preset time period before the time the unique identification information of the battery swapping vehicle is sent; or, the unique identification information of this vehicle is the vehicle information within a preset time period after the time the unique identification information of the battery swapping vehicle is sent. The vehicle information sending module is used to periodically send the vehicle information to the battery swapping station.

14. The battery swapping status monitoring system as described in claim 13, characterized in that, The battery swapping status includes the high-voltage status of the electric vehicle, and the battery swapping stage information includes battery swapping start information; the high-voltage status corresponding to the battery swapping start information is the low-voltage status. The battery swapping phase matching module is used to determine whether the electric vehicle is in a low-voltage state based on the battery swapping start information. If not, the first operation control module is invoked. The first operation control module is used to control the high voltage of the electric vehicle.

15. The battery swapping status monitoring system as described in claim 14, characterized in that, The vehicle information also includes high-voltage status information.

16. A switching system for battery swapping states, characterized in that, The switching system is used for electric vehicles to perform battery swapping operations at battery swapping stations. The switching system includes: a battery swapping information receiving module, a vehicle matching module, and an operation control module. The battery swapping information receiving module is used to receive battery swapping information sent by the battery swapping station. The battery swapping information includes unique identification information of the battery swapping vehicle and corresponding battery swapping stage information. The vehicle matching module is used to determine whether the unique identification information of the battery swapping vehicle matches the electric vehicle. If so, the operation control module is invoked. The operation control module is used to perform corresponding operations based on the battery swapping stage information. The switching system also includes a vehicle information transmission module; The vehicle information sending module is used to send vehicle information to the battery swapping station, and the vehicle information includes the vehicle's unique identification information. The vehicle matching module is used to determine whether the unique identification information of the battery swapping vehicle matches the unique identification information of the electric vehicle itself. The unique identification information of this vehicle is the vehicle information within a preset time period before the time the unique identification information of the battery swapping vehicle is sent; or, the unique identification information of this vehicle is the vehicle information within a preset time period after the time the unique identification information of the battery swapping vehicle is sent. The vehicle information sending module is used to periodically send the vehicle information to the battery swapping station.

17. The battery swapping state switching system as described in claim 16, characterized in that, The battery swapping status includes the high-voltage status of the electric vehicle, and the battery swapping stage information includes battery swapping start information; the high-voltage status corresponding to the battery swapping start information is the low-voltage status. The operation control module performs corresponding operations based on the battery swapping stage information, including: When the battery swapping stage information is the battery swapping start information, control the electric vehicle to reduce the high voltage.

18. The battery swapping state switching system as described in claim 17, characterized in that, The vehicle information also includes high-voltage status information.

19. A monitoring system for battery swapping status, characterized in that, The monitoring system is used to monitor the battery swapping operation of electric vehicles entering the battery swapping station. The battery swapping station includes at least one swapping potential, and the electric vehicles include the electric vehicle currently swapping at the swapping potential and other electric vehicles outside the swapping potential. The monitoring system includes: a vehicle information acquisition module, a battery swapping stage acquisition module, a battery swapping information generation module, and a battery swapping information broadcasting module. The vehicle information acquisition module is used to receive the unique vehicle identification information of the current battery-swapping electric vehicle and use the unique vehicle identification information as the unique identification information of the battery-swapping vehicle. The battery swapping stage acquisition module is used to acquire the battery swapping stage information of the current battery swapping electric vehicle; The battery swapping information generation module is used to generate the battery swapping information of the current battery swapping electric vehicle based on the unique identification information of the battery swapping vehicle and the battery swapping stage information. The battery swapping information broadcasting module is used to broadcast the battery swapping information; The battery swapping status monitoring system also includes: a vehicle information receiving module and a vehicle information monitoring module; The vehicle information receiving module is used to receive vehicle information sent by electric vehicles entering the battery swapping station. The vehicle information includes the unique vehicle identification information of the electric vehicle. The vehicle information monitoring module is used to determine whether the unique identification information of the battery swapping vehicle is one of the vehicle information sent by the electric vehicle entering the battery swapping station. If so, the battery swapping information broadcasting module is invoked. The vehicle information receiving module is used to periodically receive vehicle information sent by electric vehicles entering the battery swapping station. The vehicle information monitoring module is used to determine whether the unique identification information of the battery swapping vehicle is one of the first vehicle information received from the electric vehicle entering the battery swapping station. The first vehicle information is the vehicle information within a preset time period prior to the receipt of the unique vehicle identification information of the current battery-swapping electric vehicle; or, The first vehicle information is the vehicle information within a preset time period after receiving the unique vehicle identification information of the current battery-swapping electric vehicle.

20. The battery swapping status monitoring system as described in claim 19, characterized in that, The battery swapping station includes battery swapping equipment; The battery swapping phase acquisition module includes: an operation status receiving unit and a battery swapping phase generation unit; The operation status receiving unit is used to receive the operation status information of the battery swapping equipment performing battery swapping operation on the current battery swapping electric vehicle. The battery swapping stage generation unit is used to generate battery swapping stage information based on the operation status information.

21. The battery swapping status monitoring system as described in claim 20, characterized in that, The battery swapping stage information includes battery swapping start information and battery swapping completion information; The battery swapping information broadcasting module is used to broadcast battery swapping information with battery swapping start information when the received operation status information is battery swapping preparation; and / or, the battery swapping information broadcasting module is used to broadcast battery swapping information with battery swapping completion information when the received operation status information is battery swapping completion.

22. The battery swapping status monitoring system as described in claim 21, characterized in that, The monitoring system also includes a second operation control module; The second operation control module is used to perform corresponding operations on the current battery-swapping electric vehicle based on the received operation status information and the high-voltage status information in the vehicle information sent by the current battery-swapping electric vehicle in the most recent cycle after the battery-swapping information broadcast module broadcasts the battery-swapping information containing the battery-swapping start information.

23. The battery swapping status monitoring system as described in claim 22, characterized in that, The high-pressure status information includes lower high-pressure status information and upper high-pressure status information; The monitoring system also includes a battery swapping reminder module; The second operation control module is used to control the battery swapping equipment to start the battery swapping operation after the battery swapping information broadcast by the battery swapping information broadcast module broadcasts the battery swapping information containing the battery swapping start information, when the received high voltage status information is the low high voltage status information and the received operation status information is battery swapping preparation, or to control the battery swapping equipment to start the battery swapping operation and simultaneously stop broadcasting the current battery swapping information. And / or, When the received high voltage status information is the upper high voltage status information and the received operation status information is battery swapping preparation, control the battery swapping equipment to maintain the battery swapping preparation state, or control the battery swapping equipment to maintain the battery swapping preparation state and simultaneously issue a prompt message and / or continuously broadcast the current battery swapping information. And / or, When the received high-voltage status information is the lower high-voltage status information and the received operation status information is that the battery swapping is completed, the battery swapping equipment is controlled to wait for a preset time. The second operation control module is also used to, after controlling the battery swapping equipment to wait for a preset time, if the received high voltage status information is still the low high voltage status information and the received operation status information is still battery swapping completed, then call the battery swapping prompt module; The battery swapping prompt module is used to control the battery swapping device to repeat the battery installation action once or prompt manual operation.

24. The battery swapping status monitoring system as described in claim 19, characterized in that, The battery swapping information broadcasting module is used to periodically broadcast the battery swapping information.

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