Safety detection device for battery changing area

Abstract

The utility model provides a safety detection device for a battery changing area, which comprises scanning equipment, a sensor and a controller, the scanning equipment is arranged at the diagonal position of a battery changing channel, and the sensor is arranged on the advancing route of a battery changing vehicle; the sensor is used for detecting the current position of the battery changing vehicle and transmitting the current position to the controller; the controller is used for determining the state of the power conversion channel according to the received current position and transmitting the state of the power conversion channel to the scanning equipment; the scanning device is used for obtaining a target scanning area according to the received state of the battery changing channel and scanning the target scanning area so as to detect whether a shielding object irrelevant to the battery changing vehicle exists in the target scanning area or not. According to the utility model, through the cooperation among the sensor, the controller and the scanning device, whether the shielding object irrelevant to the battery replacing vehicle exists in the target scanning area of the battery replacing channel is detected, so that the shielding object irrelevant to the battery replacing vehicle is prevented from entering the battery replacing channel by mistake, and the battery replacing safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to safety detection technical field, especially a kind of safety detection device of battery swap area. BACKGROUND

[0002] In recent years, with the development of intelligent battery swap station network, electric vehicles are changed from charging to battery swap. In the process of battery swap of electric vehicles, it is necessary to drive into the battery swap channel and stop at the preset battery swap area. The battery swap equipment takes off the old battery from the electric vehicle and transfers it to the stacker. The stacker puts the old battery into the old warehouse of the charging room. Then, the new battery is taken off from the new warehouse of the charging room. After that, the new battery is transferred to the battery swap equipment, and the battery swap equipment installs the new battery on the electric vehicle. That is, there is a process of movement of electric vehicles and battery swap equipment in the entire battery swap program. Once a person or other moving object unrelated to battery swap enters the battery swap area, there is a risk of injury to the person or other moving object unrelated to battery swap by the movement of the battery swap equipment.

[0003] However, it is currently impossible to detect the situation that a person or other moving object unrelated to battery swap enters the battery swap area during the battery swap process of the vehicle. SUMMARY

[0004] The technical problem to be solved by the utility model is to overcome the defect that the prior art cannot detect the situation that a person or other moving object unrelated to battery swap enters the battery swap area during the battery swap process of the vehicle, and to provide a safety detection device for battery swap area.

[0005] The utility model solves the above technical problems by the following technical solutions:

[0006] The utility model provides a safety detection device for battery swap area, which is applied in a battery swap station. The safety detection device comprises a scanning device, a sensor and a controller. The scanning device is arranged at the diagonal of the battery swap channel. The sensor is arranged on the travel route of the battery swap vehicle.

[0007] The sensor is used to detect the current position of the battery swap vehicle and transmit the current position to the controller.

[0008] The controller is used to determine the state of the battery swap channel according to the received current position and transmit the state of the battery swap channel to the scanning device.

[0009] The scanning device is used to obtain a target scanning area according to the received state of the battery swap channel and scan the target scanning area to detect whether there is an object unrelated to the battery swap vehicle in the target scanning area.

[0010] In the embodiment, the target scanning area of the battery replacement channel is detected whether there is an obstacle irrelevant to the battery replacement vehicle through cooperation between the sensor, the controller and the scanning device, so as to prevent the obstacle irrelevant to the battery replacement vehicle from entering the battery replacement channel, and improve the battery replacement safety.

[0011] Preferably, the number of the sensors is multiple; at least one first sensor is arranged at the entrance of the battery replacement channel; at least one second sensor is arranged in the battery replacement channel; and at least one third sensor is arranged at the exit of the battery replacement channel.

[0012] In the embodiment, the state of the battery replacement vehicle can be accurately detected through the first sensor, the second sensor and the third sensor, so that the target scanning area can be accurately switched to the corresponding area.

[0013] Preferably, the first sensor is located at one side of the battery replacement channel along a first direction in which the battery replacement vehicle enters or exits the battery replacement channel, and the first sensor can detect an area in a second direction perpendicular to the first direction; the second sensor is located at one side of the battery replacement channel along the first direction in which the battery replacement vehicle enters or exits the battery replacement channel, and the second sensor can detect an area in the second direction perpendicular to the first direction; and the third sensor is located at one side of the battery replacement channel along the first direction in which the battery replacement vehicle enters or exits the battery replacement channel, and the third sensor can detect an area in the second direction perpendicular to the first direction.

[0014] In the embodiment, the first sensor, the second sensor and the third sensor are arranged at the preset positions and detect the area in the second direction, so that the position state of the battery replacement vehicle can be accurately detected, and the target scanning area can be accurately switched to the corresponding area.

[0015] Preferably, the first sensor is one, and covers a first preset distance in the first direction; and / or the second sensor is one, and covers a second preset distance in the first direction; and / or the third sensor is one, and covers a third preset distance in the first direction.

[0016] In the embodiment, the first sensor, the second sensor and the third sensor detect the preset distance range in the area in the second direction and in the first direction, so that comprehensive detection is realized, the false detection caused by the staff is avoided, the reliability of detecting the position state of the battery replacement vehicle is greatly improved, and the target scanning area can be accurately switched to the corresponding area.

[0017] Preferably, in the case that the first sensor, the second sensor and the third sensor are all one, the first sensor, the second sensor and the third sensor are all grating sensors.

[0018] In this embodiment, by setting the first sensor, the second sensor and the third sensor as grating sensors, comprehensive detection is realized to ensure the accuracy of detecting the position state of the battery swap vehicle, so that the target scanning area can be accurately switched to the corresponding area.

[0019] Preferably, the first sensor is two, the distance between the two first sensors in the first direction is a first preset distance; and / or, the second sensor is two, the distance between the two second sensors in the first direction is a second preset distance; and / or, the third sensor is two, the distance between the two third sensors in the first direction is a third preset distance.

[0020] In this embodiment, by setting different distances between the two first sensors, between the two second sensors and between the two third sensors, comprehensive detection is realized to ensure the accuracy of detecting the position state of the battery swap vehicle.

[0021] Preferably, in the case that the first sensor, the second sensor and the third sensor are both two, the first sensor, the second sensor and the third sensor are all photoelectric sensors.

[0022] In this embodiment, by setting the two first sensors, the two second sensors and the two third sensors as photoelectric sensors, the position state of the battery swap vehicle can be more accurately detected while reducing the cost of the equipment.

[0023] Preferably, if the first sensor, the second sensor and the third sensor all do not detect the battery swap vehicle, it is determined that the state of the battery swap channel is no vehicle state, and the target scanning area is the first area.

[0024] In this embodiment, when the first sensor, the second sensor and the third sensor all do not detect the battery swap vehicle, it is determined that the battery swap vehicle is not in the battery swap channel, and thus the state of the battery swap channel is no vehicle state, and at this time the target scanning area is the first area before the battery swap vehicle enters the battery swap channel or after the battery swap vehicle exits the battery swap channel.

[0025] Preferably, if the first sensor detects the battery swap vehicle and the second sensor and the third sensor do not detect the battery swap vehicle, it is determined that the state of the battery swap channel is the entering vehicle state, and the target scanning area is switched from the first area to the second area.

[0026] In the embodiment, if the first sensor detects the battery swap vehicle, and the second sensor and the third sensor do not detect the battery swap vehicle, it is determined that the battery swap vehicle is entering the battery swap channel, and the state of the battery swap channel is determined to be the entering state, and the target scanning area is switched from the first area to the second area when the battery swap vehicle enters the battery swap channel.

[0027] Preferably, if the second sensor detects the battery swap vehicle, and the first sensor and the third sensor do not detect the battery swap vehicle, it is determined that the state of the battery swap channel is the battery swap state, and the target scanning area is switched from the second area to the third area.

[0028] In the embodiment, if the second sensor detects the battery swap vehicle, and the first sensor and the third sensor do not detect the battery swap vehicle, it is determined that the battery swap vehicle has entered the battery swap area in the battery swap channel, and the state of the battery swap channel is determined to be the battery swap state, and the target scanning area is switched from the second area to the third area when the battery swap vehicle is in the battery swap process.

[0029] Preferably, if the third sensor detects the battery swap vehicle, and the first sensor and the second sensor do not detect the battery swap vehicle, it is determined that the state of the battery swap channel is the exiting state, and the target scanning area is switched from the third area to the fourth area.

[0030] In the embodiment, if the third sensor detects the battery swap vehicle, and the first sensor and the second sensor do not detect the battery swap vehicle, it is determined that the battery swap vehicle is exiting the battery swap channel, and the state of the battery swap channel is determined to be the exiting state, and the target scanning area is switched from the third area to the fourth area when the battery swap vehicle exits the battery swap channel.

[0031] Preferably, the scanning device comprises a laser scanner.

[0032] And / or,

[0033] The scanning device is further configured to output an alarm prompt information when detecting that the target scanning area has an obstacle irrelevant to the battery swap vehicle.

[0034] In the embodiment, the scanning device outputs an alarm prompt information when detecting that the target scanning area has an obstacle irrelevant to the battery swap vehicle, so as to prevent the obstacle irrelevant to the battery swap vehicle from entering the battery swap channel.

[0035] Preferably, the installation height of the sensor and / or the scanning device is not lower than the sum of the height of the battery swap equipment in the battery swap station and the height of the battery pack of the battery swap vehicle.

[0036] Preferably, if the battery swap channel belongs to a closed state, the scanning device is arranged at a diagonal position of the battery swap channel.

[0037] If the battery replacement channel belongs to an unsealed state, the scanning device is set in a preset range corresponding to the head and tail of the battery replacement vehicle in the battery replacement state.

[0038] In this embodiment, the scanning device is set in different positions according to the state of the battery replacement channel, which can more clearly and completely scan the corresponding area.

[0039] On the basis of common sense in the art, the above-mentioned preferred conditions can be combined arbitrarily, that is, each preferred example of the utility model is obtained.

[0040] The positive progress effect of the utility model is that:

[0041] The utility model discloses a sensor, controller and scanning device between the cooperation to detect whether the target scanning area of the battery replacement channel has the shielding of irrelevant to the battery replacement vehicle, prevents the shielding of irrelevant to the battery replacement vehicle from entering the battery replacement channel, and improves the battery replacement safety. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 It is the size schematic view of the battery replacement station of the safety detection device of the battery replacement area of the embodiment 1 and 2 of the utility model.

[0043] Figure 2 It is the structure schematic view of the safety detection device of the battery replacement area of the embodiment 1 of the utility model.

[0044] Figure 3 It is the scanning area of the scanning device of the safety detection device of the battery replacement area of the embodiment 1 and 2 of the utility model.

[0045] Figure 4 It is the flow chart of the safety detection method of the battery replacement area of the embodiment 2 of the utility model. DETAILED DESCRIPTION

[0046] The utility model will be more clearly and completely illustrated by the embodiment, and the description of the embodiment is used to help understanding the utility model, but does not constitute the limitation to the utility model.

[0047] Embodiment 1

[0048] The safety detection device of the battery replacement area provided in the embodiment is applied to the battery replacement station, and the safety detection device includes a scanning device, a sensor and a controller, the scanning device is arranged at the diagonal of the battery replacement channel, the sensor is arranged on the travel route of the battery replacement vehicle, and the controller is arranged on the travel route of the battery replacement vehicle.

[0049] The sensor is used to detect the current position of the battery replacement vehicle and transmit the current position to the controller.

[0050] A controller is configured to determine a state of the battery swap channel according to the received current position, and transmit the state of the battery swap channel to the scanning device.

[0051] The scanning device is configured to obtain a target scanning area according to the received state of the battery swap channel, and scan the target scanning area to detect whether the target scanning area has an obstacle irrelevant to the battery swap vehicle.

[0052] In this embodiment, the size of the battery swap station is as shown in Figure 1 Figure 1 The battery swap station is provided with a B1 warehouse, a B2 warehouse, a front chamber, a rear chamber, a battery swap channel, a battery swap area of the battery swap vehicle, and a vehicle entry direction.

[0053] In this embodiment, the scanning device includes a laser scanner.

[0054] In this embodiment, the target scanning area of the battery swap channel is detected by the cooperation between the sensor, the controller and the scanning device to prevent the irrelevant obstacle of the battery swap vehicle from entering the battery swap channel, thereby improving the safety of the battery swap.

[0055] In an optional embodiment, the number of sensors is multiple; at least one first sensor is arranged at the entrance of the battery swap channel; at least one second sensor is arranged in the battery swap channel; and at least one third sensor is arranged at the exit of the battery swap channel.

[0056] In this embodiment, the first sensor, the second sensor and the third sensor can accurately detect the state of the battery swap vehicle, so that the target scanning area can be accurately switched to the corresponding area.

[0057] In an optional embodiment, the first sensor is located on one side of the battery swap channel along a first direction in which the battery swap vehicle enters or exits the battery swap channel, and the first sensor can detect an area in a second direction perpendicular to the first direction; the second sensor is located on one side of the battery swap channel along the first direction in which the battery swap vehicle enters or exits the battery swap channel, and the second sensor can detect an area in the second direction perpendicular to the first direction; and the third sensor is located on one side of the battery swap channel along the first direction in which the battery swap vehicle enters or exits the battery swap channel, and the third sensor can detect an area in the second direction perpendicular to the first direction.

[0058] In this embodiment, the first sensor, the second sensor and the third sensor are arranged at the preset position and detect the area in the second direction, which can accurately detect the position state of the battery swap vehicle, so that the target scanning area can be accurately switched to the corresponding area.

[0059] ​In an optional embodiment, the first sensor is one, and the first sensor covers a first preset distance in the first direction; and / or, the second sensor is one, and the second sensor covers a second preset distance in the first direction; and / or, the third sensor is one, and the third sensor covers a third preset distance in the first direction.

[0060] In the embodiment, the first preset distance, the second preset distance, and the third preset distance are set according to actual conditions. For example, the first preset distance can be set to 250 mm, the second preset distance can be set to 2095 mm, and the third preset distance can be set to 250 mm, or other values, which are not limited here. Such a setting is made considering that the battery replacement vehicle has a certain length. If the first sensor, the second sensor, and the third sensor do not cover a certain distance in the first direction when detecting the area in the second direction, it is easy to cause misjudgment. For example, when a person enters the battery replacement channel, since the first sensor, the second sensor, and the third sensor are one, if the first sensor, the second sensor, and the third sensor do not cover a certain distance in the first direction when detecting the area in the second direction, it is easy to misjudge the person entering the battery replacement channel as the battery replacement vehicle, and a safety hazard occurs.

[0061] It should be noted that the first preset distance and the third preset distance can be set to the same value, or different values according to actual conditions.

[0062] In the embodiment, the first sensor, the second sensor, and the third sensor are detected in the preset distance range in the first direction within the area in the second direction, comprehensive detection is achieved, misdetection due to the staff passing through is avoided, the reliability of detecting the position state of the battery replacement vehicle is greatly improved, and the target scanning area can be accurately switched to the corresponding area.

[0063] In an optional embodiment, when the first sensor, the second sensor, and the third sensor are one, the first sensor, the second sensor, and the third sensor are all grating sensors.

[0064] In the embodiment, the first sensor, the second sensor, and the third sensor are set to grating sensors to achieve comprehensive detection, so as to ensure the accuracy of detecting the position state of the battery replacement vehicle, and the target scanning area can be accurately switched to the corresponding area.

[0065] In an optional embodiment, as shown in FIG. 6, the first sensor, the second sensor, and the third sensor are all grating sensors. Figure 2As shown, the first sensors are two (for example, S1, S2), the interval of the two first sensors in the first direction is a first preset distance; and / or, the second sensors are two (for example, S3, S4), the interval of the two second sensors in the first direction is a second preset distance; and / or, the third sensors are two (for example, S5, S6), the interval of the two third sensors in the first direction is a third preset distance.

[0066] In the embodiment, the overall detection is realized by setting different distances between the two first sensors, between the two second sensors and between the two third sensors, so as to ensure the accuracy of the position state detection of the battery swap vehicle.

[0067] In an optional embodiment, in the case that the first sensors, the second sensors and the third sensors are all two, the first sensors, the second sensors and the third sensors are all photoelectric sensors.

[0068] In the embodiment, as shown, Figure 2 The scanning devices SC1 and SC2 are arranged at the opposite corners of the battery swap channel, for example, two first sensors (for example, S1, S2) are arranged at the entrance of the battery swap channel, two second sensors (for example, S3, S4) are arranged in the battery swap channel, and two third sensors (for example, S5, S6) are arranged at the exit of the battery swap channel.

[0069] In the embodiment, by setting the two first sensors, the two second sensors and the two third sensors as photoelectric sensors, the position state of the battery swap vehicle can be more accurately detected while reducing the equipment cost.

[0070] In an optional embodiment, the battery swap area scanning device is divided into Figure 3 four scanning areas of the first area A, the second area B, the third area Cxx and the fourth area D as shown; it should be noted that, Figure 3 the scanning directions of the first area A, the second area B, the third area Cxx and the fourth area D are perpendicular to Figure 1 and Figure 2 the vehicle entering direction in the above embodiment; if the battery swap vehicle is not detected by the first sensors, the second sensors and the third sensors, it is determined that the state of the battery swap channel is no vehicle state, and the target scanning area is the first area A.

[0071] In the embodiment, the first area A represents the scanning area before the battery swap vehicle enters the battery swap channel or after the battery swap vehicle exits the battery swap channel, the second area B represents the scanning area when the battery swap vehicle enters the battery swap channel, the third area Cxx represents the scanning area during the battery swap process of the battery swap vehicle, and the fourth area D represents the scanning area when the battery swap vehicle exits the battery swap channel.

[0072] It should be noted that if the first sensor, the second sensor and the third sensor are not blocked, it is determined that if the first sensor, the second sensor and the third sensor do not detect the battery replacement vehicle, further, it is determined that the state of the battery replacement channel is no vehicle state, and the target scanning area is the first area A.

[0073] In this embodiment, when the first sensor, the second sensor and the third sensor do not detect the battery replacement vehicle, it is determined that the battery replacement vehicle is not in the battery replacement channel, and the state of the battery replacement channel is determined to be no vehicle state. At this time, the target scanning area is the first area before the battery replacement vehicle enters the battery replacement channel or after the battery replacement vehicle exits the battery replacement channel.

[0074] In an optional embodiment, if the first sensor detects the battery replacement vehicle, and the second sensor and the third sensor do not detect the battery replacement vehicle, it is determined that the state of the battery replacement channel is the entering vehicle state, and the target scanning area is switched from the first area A to the second area B.

[0075] In this embodiment, if the first sensor is blocked, it is determined that the first sensor detects the battery replacement vehicle, and if the second sensor and the third sensor are not blocked, it is determined that the second sensor and the third sensor do not detect the battery replacement vehicle, and further, it is determined that the state of the battery replacement channel is the entering vehicle state, and the target scanning area is switched from the first area A to the second area B.

[0076] In this embodiment, if the first sensor detects the battery replacement vehicle, and the second sensor and the third sensor do not detect the battery replacement vehicle, it is determined that the battery replacement vehicle is entering the battery replacement channel, and the state of the battery replacement channel is determined to be the entering vehicle state, and the target scanning area is switched from the first area to the second area when the battery replacement vehicle enters the battery replacement channel.

[0077] In an optional embodiment, if the second sensor detects the battery replacement vehicle, and the first sensor and the third sensor do not detect the battery replacement vehicle, it is determined that the state of the battery replacement channel is the battery replacement state, and the target scanning area is switched from the second area B to the third area Cxx.

[0078] In this embodiment, if the second sensor is blocked, it is determined that the second sensor detects the battery replacement vehicle, and if the first sensor and the third sensor are not blocked, it is determined that the first sensor and the third sensor do not detect the battery replacement vehicle, and further, it is determined that the state of the battery replacement channel is the battery replacement state, and the target scanning area is switched from the second area B to the third area Cxx.

[0079] In this embodiment, if the second sensor detects the battery replacement vehicle, and the first sensor and the third sensor do not detect the battery replacement vehicle, it is determined that the battery replacement vehicle has entered the battery replacement area in the battery replacement channel, and the state of the battery replacement channel is determined to be the battery replacement state, and the target scanning area is switched from the second area to the third area when the battery replacement vehicle is in the battery replacement process.

[0080] In an optional embodiment, if the third sensor detects the battery swap vehicle, and the first sensor and the second sensor do not detect the battery swap vehicle, it is determined that the state of the battery swap channel is the exiting vehicle state, and the target scanning area is switched from the third area Cxx to the fourth area D.

[0081] In this embodiment, if the third sensor is blocked, it is determined that the third sensor detects the battery swap vehicle, and if the first sensor and the second sensor are not blocked, it is determined that the first sensor and the second sensor do not detect the battery swap vehicle. Further, it is determined that the state of the battery swap channel is the exiting vehicle state, and the target scanning area is switched from the third area Cxx to the fourth area D.

[0082] In this embodiment, if the third sensor detects the battery swap vehicle, and the first sensor and the second sensor do not detect the battery swap vehicle, it indicates that the battery swap vehicle is exiting the battery swap channel, and thus it is determined that the state of the battery swap channel is the exiting vehicle state, and the target scanning area is switched from the third area to the fourth area when the battery swap vehicle exits the battery swap channel.

[0083] In the specific implementation process, the scanning device (for example, a laser scanner) is switched by the safety PLC (controller) according to the state of the two first sensors (for example, S1, S2), the two second sensors (for example, S3, S4), and the two third sensors (for example, S5, S6) of the battery swap area; the scanning area switching logic is shown in Table 1:

[0084] Table 1

[0085] NO. Status Battery swap S1 S2 S3 S4 S5 S6 SC1 / SC2 1 No car √ 1 1 1 1 1 1 A 2 Car in × 0 0 0 0 1 1 B 3 Battery swap √ 1 1 0 0 1 1 Cxx 4 Car out × 1 1 0 0 0 0 D

[0086] Specifically, when there is no vehicle (for example, S1, S2, S3, S4, S5, S6 are not blocked, that is, S1, S2, S3, S4, S5, S6 are all 1), the protection area shape A is started (that is, the target scanning area is the first area A);

[0087] When the battery swap vehicle triggers the first sensor of the battery swap channel entrance (for example, S1, S2 detects the battery swap vehicle), the area protection is started and switched from the first area A to the second area B;

[0088] When the battery swap area has a vehicle (that is, S1, S2 are blocked in turn, and S3, S4 are blocked by the battery swap vehicle in turn), that is, the battery swap vehicle triggers the second sensor, the PLC (controller) starts the battery swap, and the scanning device starts the area protection and switches from the second area B to the third area Cxx;

[0089] When the system feedbacks that the battery swap is completed, and the battery swap vehicle triggers the third sensor of the battery swap channel exit (that is, S5, S6 detects the battery swap vehicle), the area protection is started and switched from the third area Cxx to the fourth area D;

[0090] When there is no vehicle, i.e. S1, S2, S3, S4, S5 and S6 are not blocked by the battery swap vehicle, the starting protection area is switched from the fourth area D to the first area A.

[0091] In an optional embodiment, the scanning device is further configured to output an alarm prompt information when it is detected that the target scanning area has an obstacle irrelevant to the battery swap vehicle.

[0092] In this embodiment, the scanning device outputs an alarm prompt information when it is detected that the target scanning area has an obstacle irrelevant to the battery swap vehicle, so as to prevent the obstacle irrelevant to the battery swap vehicle from entering the battery swap channel.

[0093] In an optional embodiment, the installation height of the sensor and / or the scanning device is not lower than the sum of the height of the battery swap equipment and the battery pack of the battery swap vehicle in the battery swap station; it should be noted that the installation height can ensure the scanning of the obstacle or the battery swap vehicle, and in addition, the range value of the installation height is 430mm-480mm; the lifting height of the battery swap vehicle is 320mm.

[0094] In an optional embodiment, if the battery swap channel belongs to a closed state, the scanning device is arranged at a diagonal position of the battery swap channel.

[0095] If the battery swap channel belongs to an unclosed state, the scanning device is arranged in a preset range corresponding to the head and tail of the battery swap vehicle in the battery swap state.

[0096] In this embodiment, the scanning device is arranged at different positions according to the state of the battery swap channel, so that the corresponding area can be scanned more clearly and completely.

[0097] In this embodiment, the preset range is set according to the actual situation, which is not limited here.

[0098] In this embodiment, the sensor, the controller and the scanning device cooperate to detect whether the target scanning area of the battery swap channel has an obstacle irrelevant to the battery swap vehicle, so as to prevent the obstacle irrelevant to the battery swap vehicle from entering the battery swap channel, and improve the battery swap safety.

[0099] Embodiment 2

[0100] The safety detection method of the battery swap area provided in this embodiment is suitable for the safety detection device of the battery swap area in embodiment 1, and the safety detection device includes a scanning device, a sensor and a controller, as shown in Figure 4 The safety detection method includes the following steps:

[0101] S1, detecting the current position of the battery swap vehicle by the sensor and transmitting the current position to the controller;

[0102] S2, determining the state of the battery replacement channel according to the received current position by the controller, and transmitting the state of the battery replacement channel to the scanning device;

[0103] S3, obtaining a target scanning area according to the received state of the battery replacement channel by the scanning device, and scanning the target scanning area to detect whether there is an obstacle irrelevant to the battery replacement vehicle in the target scanning area.

[0104] In this embodiment, the size of the battery replacement station is as shown in Figure 1 Figure 1 The battery replacement station is provided with a B1 warehouse, a B2 warehouse, a front chamber, a rear chamber, a battery replacement channel, a battery replacement area of the battery replacement vehicle, and a vehicle entry direction.

[0105] In this embodiment, the scanning device includes a laser scanner.

[0106] In this embodiment, the target scanning area of the battery replacement channel is detected by cooperation between the sensor, the controller and the scanning device to prevent irrelevant obstacles from entering the battery replacement channel, thereby improving the safety of battery replacement.

[0107] In an optional embodiment, the number of sensors is multiple; at least one first sensor is arranged at the entrance of the battery replacement channel; at least one second sensor is arranged in the battery replacement channel; and at least one third sensor is arranged at the exit of the battery replacement channel, and the battery replacement area scanning device is divided into four scanning areas of first area A, second area B, third area Cxx and fourth area D as shown in Figure 3 Figure 3 The scanning directions of the first area A, the second area B, the third area Cxx and the fourth area D are perpendicular to the vehicle entry direction in Figure 1 and Figure 2 The safety detection method further comprises:

[0108] If the first sensor, the second sensor and the third sensor do not detect the battery replacement vehicle, it is determined that the state of the battery replacement channel is no vehicle state, and the target scanning area is the first area A.

[0109] In this embodiment, the first area A represents the scanning area before the battery replacement vehicle enters the battery replacement channel or after the battery replacement vehicle exits the battery replacement channel, the second area B represents the scanning area when the battery replacement vehicle enters the battery replacement channel, the third area Cxx represents the scanning area during the battery replacement process of the battery replacement vehicle, and the fourth area D represents the scanning area when the battery replacement vehicle exits the battery replacement channel.

[0110] ​​It should be noted that if the first sensor, the second sensor and the third sensor are not blocked, it is determined that if the first sensor, the second sensor and the third sensor do not detect the battery replacement vehicle, further, it is determined that the state of the battery replacement channel is no vehicle state, and the target scanning area is the first area A.

[0111] In this embodiment, when the first sensor, the second sensor and the third sensor do not detect the battery replacement vehicle, it is determined that the battery replacement vehicle is not in the battery replacement channel, and the state of the battery replacement channel is determined to be no vehicle state. At this time, the target scanning area is the first area before the battery replacement vehicle enters the battery replacement channel or after the battery replacement vehicle exits the battery replacement channel.

[0112] In an optional embodiment, the safety detection method further comprises:

[0113] If the first sensor detects the battery replacement vehicle, and the second sensor and the third sensor do not detect the battery replacement vehicle, it is determined that the state of the battery replacement channel is the entering vehicle state, and the target scanning area is switched from the first area A to the second area B.

[0114] In this embodiment, if the first sensor is blocked, it is determined that the first sensor detects the battery replacement vehicle, and if the second sensor and the third sensor are not blocked, it is determined that the second sensor and the third sensor do not detect the battery replacement vehicle, and further, it is determined that the state of the battery replacement channel is the entering vehicle state, and the target scanning area is switched from the first area A to the second area B.

[0115] In this embodiment, if the first sensor detects the battery replacement vehicle, and the second sensor and the third sensor do not detect the battery replacement vehicle, it is determined that the battery replacement vehicle is entering the battery replacement channel, and the state of the battery replacement channel is determined to be the entering vehicle state, and the target scanning area is switched from the first area to the second area when the battery replacement vehicle enters the battery replacement channel.

[0116] In an optional embodiment, the safety detection method further comprises:

[0117] If the second sensor detects the battery replacement vehicle, and the first sensor and the third sensor do not detect the battery replacement vehicle, it is determined that the state of the battery replacement channel is the battery replacement state, and the target scanning area is switched from the second area B to the third area Cxx.

[0118] In this embodiment, if the second sensor is blocked, it is determined that the second sensor detects the battery replacement vehicle, and if the first sensor and the third sensor are not blocked, it is determined that the first sensor and the third sensor do not detect the battery replacement vehicle, and further, it is determined that the state of the battery replacement channel is the battery replacement state, and the target scanning area is switched from the second area B to the third area Cxx.

[0119] In this embodiment, if the second sensor detects the battery swap vehicle, and the first sensor and the third sensor do not detect the battery swap vehicle, it is determined that the battery swap vehicle has entered the battery swap region in the battery swap channel, and the state of the battery swap channel is determined to be the battery swap state, and the target scanning region is switched from the second region to the third region in the battery swap process.

[0120] In an optional embodiment, the safety detection method further comprises:

[0121] If the third sensor detects the battery swap vehicle, and the first sensor and the second sensor do not detect the battery swap vehicle, it is determined that the state of the battery swap channel is the vehicle exit state, and the target scanning region is switched from the third region Cxx to the fourth region D.

[0122] In this embodiment, if the third sensor is blocked, it is determined that the third sensor detects the battery swap vehicle, and if the first sensor and the second sensor are not blocked, it is determined that the first sensor and the second sensor do not detect the battery swap vehicle, and further, it is determined that the state of the battery swap channel is the vehicle exit state, and the target scanning region is switched from the third region Cxx to the fourth region D.

[0123] In this embodiment, if the third sensor detects the battery swap vehicle, and the first sensor and the second sensor do not detect the battery swap vehicle, it is determined that the battery swap vehicle is driving out of the battery swap channel, and the state of the battery swap channel is determined to be the vehicle exit state, and the target scanning region is switched from the third region to the fourth region when the battery swap vehicle drives out of the battery swap channel.

[0124] In the specific implementation process, the scanning device (for example, a laser scanner) is switched by the safety PLC (controller) according to the state of the vehicle positioning signal S7 of the two first sensors (for example, S1, S2), the two second sensors (for example, S3, S4), and the two third sensors (for example, S5, S6) in the battery swap region; the scanning region switching logic is shown in Table 1 in Embodiment 1.

[0125] Specifically, when there is no vehicle (for example, S1, S2, S3, S4, S5, S6 are all unblocked, that is, S1, S2, S3, S4, S5, S6 are all 1), the protection region shape A is started (that is, the target scanning region is the first region A);

[0126] When the battery swap vehicle triggers the first sensor of the battery swap channel entrance (for example, S1, S2 detects the battery swap vehicle), the region protection is started and switched from the first region A to the second region B;

[0127] When there is a vehicle in the battery swap region (that is, S1, S2 are sequentially unblocked, and S3, S4 are sequentially blocked by the battery swap vehicle), that is, the battery swap vehicle triggers the second sensor, the PLC (controller) starts the battery swap, and the scanning device starts the region protection and switches from the second region B to the third region Cxx.

[0128] When the system feedbacks that the battery swap is completed, and the third sensor (i.e., S5, S6 detects the battery swap vehicle) of the battery swap channel exit triggered by the battery swap vehicle, the starting area protection is switched from the third area Cxx to the fourth area D;

[0129] When there is no vehicle, i.e., S1, S2, S3, S4, S5 and S6 are not blocked by the battery swap vehicle, the starting protection area is switched from the fourth area D to the first area A.

[0130] In an optional embodiment, the safety detection method further comprises:

[0131] When the scanning device detects that the target scanning area has an obstruction irrelevant to the battery swap vehicle, the scanning device outputs an alarm prompt information.

[0132] In this embodiment, when the scanning device detects that the target scanning area has an obstruction irrelevant to the battery swap vehicle, the scanning device outputs an alarm prompt information, so as to prevent the obstruction irrelevant to the battery swap vehicle from entering the battery swap channel by mistake.

[0133] This embodiment detects whether the target scanning area of the battery swap channel has an obstruction irrelevant to the battery swap vehicle through the cooperation between the sensor, the controller and the scanning device, so as to prevent the obstruction irrelevant to the battery swap vehicle from entering the battery swap channel by mistake, and improve the battery swap safety.

[0134] Although the specific embodiments of the utility model are described above, those skilled in the art should understand that this is only an example, the protection scope of the utility model 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 utility model, but these changes and modifications all fall within the protection scope of the utility model.

Claims

1.A safety detection device of a battery swap area, applied in a battery swap station, characterized in that, The safety detection device comprises a scanning device, a sensor and a controller, the scanning device is arranged at the diagonal of the battery replacement channel, and the sensor is arranged on the travel route of the battery replacement vehicle; The sensor is used to detect the current position of the battery replacement vehicle and transmit the current position to the controller; The controller is used to determine the state of the battery replacement channel according to the received current position and transmit the state of the battery replacement channel to the scanning device; The scanning device is used to obtain a target scanning area according to the received state of the battery replacement channel and scan the target scanning area to detect whether there is an obstacle irrelevant to the battery replacement vehicle in the target scanning area; The number of sensors is multiple; at least one first sensor is arranged at the entrance of the battery replacement channel; at least one second sensor is arranged in the battery replacement channel; and at least one third sensor is arranged at the exit of the battery replacement channel; The first sensor is located on one side of the battery replacement channel along the first direction in which the battery replacement vehicle enters or exits the battery replacement channel, and the first sensor can detect the area in the second direction perpendicular to the first direction; the second sensor is located on one side of the battery replacement channel along the first direction in which the battery replacement vehicle enters or exits the battery replacement channel, and the second sensor can detect the area in the second direction perpendicular to the first direction; and the third sensor is located on one side of the battery replacement channel along the first direction in which the battery replacement vehicle enters or exits the battery replacement channel, and the third sensor can detect the area in the second direction perpendicular to the first direction. The first sensor is one, which covers a first preset distance in the first direction; and / or the second sensor is one, which covers a second preset distance in the first direction; and / or the third sensor is one, which covers a third preset distance in the first direction. 2.The safety detection device of the battery swap region of claim 1, wherein, In the case that the first sensor, the second sensor and the third sensor are all one, the first sensor, the second sensor and the third sensor are all grating sensors. 3.The safety detection device of the battery swap region of claim 1, wherein, The first sensor is two, the interval between the two first sensors in the first direction is a first preset distance; and / or the second sensor is two, the interval between the two second sensors in the first direction is a second preset distance; and / or the third sensor is two, the interval between the two third sensors in the first direction is a third preset distance. 4.The safety detection device of battery swap area according to claim 1, wherein, In the case that the first sensor, the second sensor and the third sensor are all two, the first sensor, the second sensor and the third sensor are all photoelectric sensors. 5.The safety detection device of battery swap area according to claim 1, wherein, If the first sensor, the second sensor and the third sensor all do not detect the battery replacement vehicle, it is determined that the state of the battery replacement channel is no vehicle state, and the target scanning area is a first area. 6.The safety detection device of battery swap area according to claim 1, wherein, ​ 7.The safety detection device of battery swap area according to claim 6, wherein, If the first sensor detects the battery swap vehicle, and the second sensor and the third sensor do not detect the battery swap vehicle, it is determined that the state of the battery swap channel is an entering state, and the target scanning area is switched from the first area to a second area. 8.The safety detection device of battery swap region of claim 7, wherein, If the second sensor detects the battery swap vehicle, and the first sensor and the third sensor do not detect the battery swap vehicle, it is determined that the state of the battery swap channel is a battery swap state, and the target scanning area is switched from the second area to a third area. 9.The safety detection device of battery swap region of claim 8, wherein, If the third sensor detects the battery swap vehicle, and the first sensor and the second sensor do not detect the battery swap vehicle, it is determined that the state of the battery swap channel is an exiting state, and the target scanning area is switched from the third area to a fourth area. 10.The safety detection device of battery swap area according to claim 1, wherein, The scanning device comprises a laser scanner. And / or, The scanning device is further configured to output an alarm prompt when it is detected that the target scanning area has an obstacle unrelated to the battery swap vehicle. 11.The safety detection device of battery swap area according to claim 1, wherein, The installation height of the sensor and / or the scanning device is not less than the sum of the height of the battery swap equipment in the battery swap station and the height of the battery pack of the battery swap vehicle. 12.The safety detection device of battery swap area according to claim 1, wherein, If the battery swap channel is in a closed state, the scanning device is arranged at a diagonal position of the battery swap channel. If the battery swap channel is in an unclosed state, the scanning device is arranged within a preset range of the head and tail of the battery swap vehicle in the battery swap state.

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