Method, system, device, storage medium and product for protecting a parking space

Abstract

The application relates to a parking space protection method, system, device, storage medium and product, and relates to the technical field of vehicle safety. The method is executed by a protection system, the protection system comprises a main controller, a charging controller and a fire extinguishing device connected with the main controller; the method comprises the following steps: acquiring battery pack state information of a vehicle through the charging controller when the vehicle is in a parking space and the charging controller is in a working state; the battery pack state information comprises voltage and temperature of the battery pack; sending a first signal to the main controller through the charging controller when the battery pack state information meets first specified conditions; the first signal is used for indicating that the battery pack of the vehicle is in an abnormal state; and starting the fire extinguishing device through the main controller when the first signal is received. The application can provide timely remedial measures when the battery pack catches fire, and can reduce the spreading range of the fire.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle safety, in particular to a protection method, system and device for a parking space, a storage medium and a product. BACKGROUND

[0002] With the popularization of electric vehicles, the situation of self-ignition of electric vehicles charging in parking spaces is increasing, which may seriously endanger life safety.

[0003] The parking space of an electric vehicle is usually divided into an indoor parking space and an outdoor parking space. In the related art, the indoor parking space is usually provided with a fire extinguishing system, and the outdoor parking space usually does not have targeted fire extinguishing measures.

[0004] However, the fire extinguishing system of the indoor parking space usually sprays a large area to extinguish fire when a fire breaks out, which cannot extinguish the fire of the vehicle targetedly and is easy to cause a large area fire. SUMMARY

[0005] The present application provides a protection method, system and device for a parking space, a storage medium and a product, and the technical solution is as follows:

[0006] On the one hand, a protection method for a parking space is provided, the method is executed by a protection system, the protection system includes a main controller, and a charging controller and a fire extinguishing device connected to the main controller; the method includes:

[0007] In a case where a vehicle is in the parking space and the charging controller is in a working state, the charging controller is used to acquire battery pack state information of the vehicle; the battery pack state information includes voltage and temperature of the battery pack;

[0008] In a case where the battery pack state information meets a first specified condition, the charging controller is used to send a first signal to the main controller; the first signal is used to indicate that the battery pack of the vehicle is in an abnormal state;

[0009] In a case where the first signal is received, the main controller is used to start the fire extinguishing device.

[0010] On the one hand, a protection system for a parking space is provided, the system includes a main controller, and a charging controller and a fire extinguishing device connected to the main controller;

[0011] The charging controller is used to acquire battery pack state information of a vehicle in a case where the vehicle is in the parking space and the charging controller is in a working state; the battery pack state information includes voltage and temperature of the battery pack;

[0012] The charging controller is configured to send a first signal to a main controller if the battery pack state information meets a first specified condition, and the first signal is used to indicate that the battery pack of the vehicle is in a thermal runaway state.

[0013] The main controller is configured to start the fire extinguishing device if the first signal is received.

[0014] In another aspect, a protection device for a parking space is provided, and the device comprises:

[0015] An information acquisition module is configured to acquire, by the charging controller, battery pack state information of the vehicle if the vehicle is in the parking space and the charging controller is in a working state, and the battery pack state information comprises voltage and temperature of the battery pack.

[0016] A first sending module is configured to send, by the charging controller, a first signal to a main controller if the battery pack state information meets a first specified condition, and the first signal is used to indicate that the battery pack of the vehicle is in an abnormal state.

[0017] A first starting module is configured to start, by the main controller, the fire extinguishing device if the first signal is received.

[0018] In a possible implementation, the protection system further comprises a smoke sensor connected to the main controller, and the device further comprises:

[0019] A smoke acquisition module is configured to acquire, by the smoke sensor, smoke concentration and smoke concentration rising rate of the parking space if the vehicle is in the parking space.

[0020] A second sending module is configured to send, by the smoke sensor, a second signal to the main controller if the smoke concentration meets a second specified condition or the smoke concentration rising rate meets a third specified condition, and the second signal is used to indicate that the smoke concentration of the parking space is in an abnormal state.

[0021] A second starting module is configured to start, by the main controller, the fire extinguishing device if the second signal is received.

[0022] In a possible implementation, the protection system further comprises a monitoring device connected to the main controller, and the device further comprises:

[0023] A license plate acquisition module is configured to acquire, by the monitoring device, license plate information of a vehicle entering the parking space.

[0024] The unlocking module is configured to control the fire extinguishing system to be in an unlocked state by the main controller when the license plate information meets a fourth specified condition.

[0025] In a possible implementation, the fire extinguishing device comprises a spraying device and a liquid nitrogen device.

[0026] The spraying device is configured to spray water towards the vehicle when the fire extinguishing device is started.

[0027] The liquid nitrogen device is configured to spray liquid nitrogen towards the battery pack when the fire extinguishing device is started.

[0028] In a possible implementation, the liquid nitrogen device comprises a liquid nitrogen tank, a protection device and a lifting device; the protection device is configured to protect the liquid nitrogen tank when the vehicle is not in the parking space; and the lifting device is configured to lift the liquid nitrogen tank when the fire extinguishing device is started.

[0029] In another aspect, a computer device is provided, which comprises a processor and a memory, and the memory stores at least one instruction, at least one program, a code set or an instruction set, which are loaded and executed by the processor to implement the protection method for a parking space as described above.

[0030] In another aspect, a computer readable storage medium is provided, which stores at least one instruction, at least one program, a code set or an instruction set, which are loaded and executed by a processor to implement the protection method for a parking space as described above.

[0031] In yet another aspect, a computer program product is provided, which comprises a computer program stored in a computer readable storage medium. A processor of a computer device reads the computer program from the computer readable storage medium, and the processor executes the computer program to enable the computer device to perform the protection method for a parking space provided in the various optional implementation manners described above.

[0032] The technical solution provided in the present application can have the following beneficial effects:

[0033] The protection system can provide a safety protection function for the vehicle; during the charging of the vehicle, the protection system can monitor the state of the battery pack in real time, and once the battery pack has an abnormal condition, the protection system can start the fire extinguishing equipment to extinguish the fire source in time; that is, the scheme can provide protection for the vehicle charging in the parking space, and in the case of battery pack fire, timely remedial measures can be provided to reduce the spread of the fire, thereby improving the safety of the vehicle and the parking space.

[0034] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings incorporated in and forming a part of the specification illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0036] Figure 1 is a schematic diagram of an implementation environment of a protection method for a parking space provided by an exemplary embodiment of the present application;

[0037] Figure 2 is a flowchart of a protection method for a parking space provided by an exemplary embodiment of the present application;

[0038] Figure 3 is a flowchart of a protection method for a parking space provided by an exemplary embodiment of the present application;

[0039] Figure 4 is a flowchart of a protection method for a parking space provided by an exemplary embodiment of the present application;

[0040] Figure 5 is a schematic diagram of an intelligent parking space of an electric vehicle for preventing fire provided by an exemplary embodiment of the present application;

[0041] Figure 6 is a schematic diagram of the cooperative work of various devices provided by an exemplary embodiment of the present application;

[0042] Figure 7 is a schematic diagram of a protection method for an intelligent parking space of an electric vehicle for preventing fire provided by an exemplary embodiment of the present application;

[0043] Figure 8 is a block diagram of a protection device for a parking space provided by an exemplary embodiment of the present application;

[0044] Figure 9 is a structural schematic diagram of a computer device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0045] For the purposes of the present application, the term "coupled" is used to describe both an indirect coupling and a direct coupling between two entities, where coupling includes use of one or more intermediate couples between two entities. Coupling can be described as a relationship where entities interact with each other (e.g., messaging, memory access, name agreement, or other interaction). In some embodiments, "coupled" can also mean that two entities are separate from each other but still work directly or indirectly with each other. The term "coupled" as used herein can also include an electrical coupling.

[0046] The exemplary embodiments will be described in detail herein below with reference to the drawings.

[0047] The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0048] It should be understood that although the terms first, second, etc. can be used herein to describe various information, these terms are not intended to denote a particular order or hierarchy. For example, a first parameter can be termed a second parameter, and, similarly, a second parameter can be termed a first parameter, without departing from the scope of the present disclosure. As used herein, the term "if' can be construed to mean "when" or "in response to determining" or "in response to a determination" that, for example, a given condition is satisfied or a given operation is to be performed, and vice versa.

[0049] It should be noted that in the steps related to the collection of user operations (such as receiving input operations of the user) in the present application, the control system can display a prompt interface, a pop-up window, or broadcast voice prompt information on a vehicle instrument, a user application (APP), etc. The prompt interface, the pop-up window, and the voice prompt information are used to prompt / inform the user that the user operation is being received. After obtaining the consent instruction of the user (such as a confirmation operation of the user on the prompt interface or the pop-up window), the control device can start to perform the steps of receiving the input operation of the user. Otherwise, the steps of receiving the input operation of the user are ended, that is, the input operation of the user is not received. In other words, the input operation of the user received in the present application is collected under the condition that the user is fully informed, agrees, and authorizes, and the collection, use, analysis, and processing of related user data comply with relevant laws, regulations, and standards of countries and regions.

[0050] Reference is made to Figure 1 , which shows a schematic diagram of an implementation environment of a protection method for a parking space provided by an exemplary embodiment of the present application. As shown in Figure 1As shown, the implementation environment can include a vehicle 110 and a protection system including a main controller 120, and a charging controller 130 and a fire extinguishing device 140 connected to the main controller 120.

[0051] The vehicle 110 can be a battery electric vehicle (BEV), a hybrid electric vehicle (HEV), a plug-in hybrid electric vehicle (PHEV), or the like, which uses a power battery. The protection system is arranged at a parking position of the vehicle 110. When the vehicle 110 is parked at the parking position, a user can use the charging controller 130 to charge the vehicle 110. The fire extinguishing device is used to extinguish the fire of the vehicle 110 in case of fire.

[0052] For example, in the system shown, Figure 1 In the system shown, when the vehicle 110 is at the parking position and the charging controller 130 is in the working state, the charging controller 130 can obtain the battery pack state information of the vehicle 110, the battery pack state information including the voltage and temperature of the battery pack; when the battery pack state information meets the first specified condition, the charging controller 130 can send a first signal to the main controller 120, the first signal being used to indicate that the battery pack of the vehicle 110 is in a thermal runaway state; and when the first signal is received, the main controller 120 can start the fire extinguishing device 140.

[0053] In the embodiments of the present application, the main controller 120 can be installed with a client running a target application. The target application can be an application having the functions of receiving and responding to information of the main controller, sending instructions, etc. The form of the target application is not limited in the present application.

[0054] Optionally, the implementation environment can further include a server. The server can be a physical server, a server cluster or a distributed system formed by multiple physical servers, a cloud platform, a cloud server, a cloud database, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, content delivery networks (CDNs), and big data and artificial intelligence platforms, etc. The cloud server of the big data and artificial intelligence platform can provide artificial intelligence cloud services. The server can be a background server of the target application, used to provide background services for the client of the target application.

[0055] The main controller 120 and the server can be directly or indirectly connected through a communication network (wired network or wireless network), which is not limited in the present application. Optionally, the communication network can be a wired network, such as Ethernet, a diagnostic protocol, or a wireless network, such as a cellular network, satellite communication, vehicle-to-everything (V2X). The communication network can be used alone or in combination to provide various data transmission, communication and Internet connection functions for vehicles, thereby realizing more intelligent and convenient driving and riding experience.

[0056] For example, in the system shown in Figure 1 In the system shown, when the first signal is received, the main controller 120 can send an emergency signal to the server, which is used to indicate that the vehicle 110 is in a fire-out state; accordingly, the server can start an emergency mode after receiving the emergency signal; in the emergency mode, the server can automatically dial the fire alarm telephone of the location of the vehicle 110, and send emergency information to the owner of the vehicle 110.

[0057] Please refer to Figure 2 , which shows a flowchart of a protection method for a parking space provided by an example embodiment of the present application. The method can be performed by a protection system, which includes a main controller, and a charging controller and a fire extinguishing device connected to the main controller. Optionally, the protection system can be Figure 1 The protection system in the system shown. As Figure 2 The method can include steps 210, 220 and 230.

[0058] Step 210: When the vehicle is in a parking space and the charging controller is in a working state, obtaining the battery pack state information of the vehicle through the charging controller; the battery pack state information includes the voltage and temperature of the battery pack.

[0059] Wherein, the charging controller in the working state means that the charging gun of the charging controller is in a connected state with the vehicle, indicating that the charging controller is charging the power battery of the vehicle, or the charging controller is charging the power battery of the vehicle within a specified time period, or the charging controller has completed charging the power battery of the vehicle.

[0060] Wherein, the battery management system (BMS) of the battery pack can detect the voltage, temperature and other battery pack state information of the battery pack in real time. When the charging controller is in a working state, the charging controller can collect the battery pack state information in real time through the controller area network (CAN) bus.

[0061] In the embodiments of the application, the voltage, temperature and other information of the battery pack are detected by the charging controller, which can prevent overcharging of the battery, avoid damage to the battery or cause a fire, and also can timely find the overheat condition of the battery.

[0062] Step 220: In the case that the battery pack state information meets the first specified condition, a first signal is sent to the main controller by the charging controller; the first signal is used to indicate that the battery pack of the vehicle is in an abnormal state.

[0063] The first specified condition can be set by the developer in advance, which is used to indicate the condition of the battery pack of the vehicle in an abnormal state. For example, the battery pack state information meeting the first specified condition can be that the voltage of the battery pack meets the first specified range, and the temperature of the battery pack meets the second specified range.

[0064] The abnormal state of the battery pack can be a thermal runaway state. Thermal runaway refers to a rapid increase in the internal temperature of the battery, which causes the chemical reaction inside the battery to accelerate, further generating more heat, forming a vicious cycle, and eventually leading to explosion.

[0065] The charging controller can exchange data with the main controller through the CAN bus.

[0066] Optionally, in the case that the battery pack state information meets the first specified condition, the charging controller can be disconnected from the vehicle.

[0067] Step 230: In the case that the first signal is received, the main controller starts the fire extinguishing device.

[0068] The fire extinguishing device is used to extinguish the fire of the vehicle.

[0069] For example, the fire extinguishing device can include one or more of the following devices: dry powder fire extinguishing device, carbon dioxide fire extinguishing device, water-based fire extinguishing device, aerosol fire extinguishing device, liquid nitrogen fire extinguishing device, foam fire extinguishing device, gas fire extinguishing device, automatic water spray fire extinguishing device, chemical fire extinguishing device, water mist fire extinguishing device, and gas inerting device.

[0070] In summary, the scheme shown in the embodiments of the application can provide a safety protection function for the vehicle. During the charging of the vehicle, the protection system can monitor the state of the battery pack in real time. Once the battery pack is abnormal, the protection system can start the fire extinguishing device to extinguish the fire source in time. That is, the scheme can provide protection for the vehicle charging in the parking space, and can provide timely remedial measures in the case of battery pack fire, reduce the spread of the fire, and thus improve the safety of the vehicle and the parking space.

[0071] Based on the above Figure 2 In a possible implementation, the protection system further comprises a smoke sensor connected to the main controller; please refer to Figure 3 Fig. 1 shows a flowchart of a protection method for a parking space according to an example embodiment of the present application. As shown in Fig. 1, the protection method for a parking space can comprise the following steps. Figure 3 As shown in Fig. 2, the protection method for a parking space can further comprise steps 240, 250 and 260.

[0072] Step 240: When the vehicle is in the parking space, the smoke concentration and the smoke concentration rising rate of the parking space are obtained by the smoke sensor.

[0073] Step 250: When the smoke concentration meets the second specified condition or the smoke concentration rising rate meets the third specified condition, the second signal is sent to the main controller by the smoke sensor; the second signal is used to indicate that the smoke concentration of the parking space is in an abnormal state.

[0074] Step 260: When the second signal is received, the fire extinguishing device is started by the main controller.

[0075] The smoke sensor is a device for detecting the smoke concentration in the environment. For example, the smoke sensor can include one or more of the following:

[0076] Photoelectric smoke sensor: the smoke concentration is determined by detecting the degree of obstruction of the light beam;

[0077] Ion type smoke sensor: the smoke concentration is determined by detecting the change of ion current;

[0078] Semiconductor smoke sensor: the smoke concentration is determined by detecting the change of resistance.

[0079] The smoke concentration rising rate can be the change amount of the smoke concentration per unit time. For example, the smoke concentration rising rate can be calculated by the following steps:

[0080] Timestamp recording: record the timestamp of each reading of the smoke concentration;

[0081] Calculate the concentration difference ΔC: calculate the difference between the smoke concentrations of adjacent two readings;

[0082] Calculate the time difference ΔT: calculate the time difference between adjacent two readings;

[0083] The smoke concentration rising rate is calculated using the following formula:

[0084]

[0085] Optionally, the smoke sensor can be arranged on the ground area of the parking space, and the position of the battery pack is opposite to the position of the vehicle when the vehicle is parked in the parking space.

[0086] The second specified condition and the third specified condition can be set by the developer in advance, and are used to indicate the condition that the smoke concentration of the parking space is in an abnormal state. For example, the smoke concentration satisfying the second specified condition can be that the smoke concentration reaches 5000 μg / m 3 .

[0087] In the embodiments of the present application, the protection system can also provide safety protection when the vehicle is parked in the parking space. When the battery pack catches fire, the smoke concentration at the position of the battery pack is high. The present scheme can detect the smoke concentration of the battery pack in real time, and can provide timely remedial measures when the battery pack catches fire.

[0088] In a possible implementation, the protection system can further include a communication module connected to the main controller. The communication module is configured to automatically dial an alarm phone and send prompt information to the user of the vehicle to indicate that the vehicle is on fire when the first signal and / or the second signal is received.

[0089] Based on the scheme shown in the above Figure 2 In a possible implementation, the protection system further includes a monitoring device connected to the main controller. The protection method for the parking space further includes:

[0090] The license plate information of the vehicle entering the parking space is obtained through the monitoring device.

[0091] When the license plate information satisfies the fourth specified condition, the main controller controls the fire extinguishing system to be in an unlocked state.

[0092] The license plate information satisfying the fourth specified condition can be that the vehicle is an electric vehicle, or the vehicle can be a vehicle specified for the corresponding parking space.

[0093] The fire extinguishing device is an important protection device. When the vehicle is not parked in the parking space, the fire extinguishing device can be in a locked state, which is used to protect the fire extinguishing device and avoid unnecessary resource waste and false triggering.

[0094] Optionally, the protection system can also provide license plate recognition services for dedicated parking spaces to prevent non-designated vehicles from occupying the dedicated parking spaces. Specifically, the protection system further includes a ground lock device adjacent to the main controller. If the license plate information meets the fourth specified condition, the main control can control the ground lock device to be unlocked, so that the vehicle can be parked in the parking space. If the license plate information does not meet the fourth specified condition, the main control can control the monitoring device to issue a prompt message prompting the vehicle with the license plate information to leave the current parking space.

[0095] According to the license plate recognition, the fire extinguishing system can be unlocked in advance to ensure that it can be quickly started in the event of a fire, thereby reducing the response time.

[0096] Based on the above-mentioned schemes of various embodiments of the present application, in one possible implementation, the fire extinguishing device includes a spraying device and a liquid nitrogen device.

[0097] The spraying device is used to spray water towards the vehicle when the fire extinguishing device is started.

[0098] The liquid nitrogen device is used to spray liquid nitrogen towards the battery pack when the fire extinguishing device is started.

[0099] The spraying device can be arranged at the top area of the parking space, so that the spraying device can spray water towards the on-fire vehicle to extinguish the fire. The spraying device can cover a large area of the fire source, reducing the risk of fire spreading.

[0100] The liquid nitrogen device can be arranged in the underground area of the parking space, and the position of the liquid nitrogen device can correspond to the position of the battery pack when the vehicle is parked in the parking space, so that the liquid nitrogen device can spray liquid nitrogen towards the on-fire battery pack to extinguish the fire. The liquid nitrogen device can quickly reduce the temperature of the battery pack to prevent the chemical reaction inside the battery from continuing, thereby reducing the risk of explosion.

[0101] In the embodiments of the present application, the fire extinguishing device uses the spraying device and the liquid nitrogen device to deal with the on-fire situation of the battery pack by combining two different fire extinguishing media (water and liquid nitrogen). The double fire extinguishing mechanism can improve the fire extinguishing efficiency and reduce the risk of fire.

[0102] Based on the above-mentioned schemes of various embodiments of the present application, in one possible implementation, the liquid nitrogen device includes a liquid nitrogen tank, a protection device, and a lifting device. The protection device is used to protect the liquid nitrogen tank when the vehicle is not in the parking space, and the lifting device is used to lift the liquid nitrogen tank when the fire extinguishing device is started.

[0103] The liquid nitrogen tank is a container for storing liquid nitrogen and can be made of stainless steel or aluminum alloy, which has good heat preservation performance. The liquid nitrogen tank is arranged in the protection device.

[0104] The protection device can be a protection cover horizontally arranged on the ground of the parking space, and the liquid nitrogen tank is arranged below the protection cover by the lifting device. In the unlocked state of the fire extinguishing system, the protection cover can be automatically opened, so that the liquid nitrogen tank can quickly spray liquid nitrogen to the battery pack when the fire extinguishing device is started.

[0105] The lifting device is used to control the position of the liquid nitrogen tank. When the fire extinguishing device is started, the lifting device can quickly lift the liquid nitrogen tank so that the liquid nitrogen tank is lifted out of the ground.

[0106] In the embodiments of the present application, the protection device can ensure the safety of the liquid nitrogen tank when the vehicle does not enter the parking space, prevent external factors from damaging the liquid nitrogen tank, and prolong the service life of the liquid nitrogen tank; the lifting device can not only reduce the risk of false triggering of the liquid nitrogen tank when no fire occurs, but also can lift the liquid nitrogen tank when a fire occurs, thereby improving the fire extinguishing efficiency.

[0107] The present application also provides a protection system for a parking space, which can be Figure 1 the protection system in the system shown. The system comprises a main controller, a charging controller and a fire extinguishing device connected to the main controller.

[0108] The charging controller is configured to acquire battery pack state information of the vehicle when the vehicle is in the parking space and the charging controller is in the working state. The battery pack state information comprises voltage and temperature of the battery pack.

[0109] The charging controller is configured to send a first signal to the main controller when the battery pack state information meets a first specified condition. The first signal is used to indicate that the battery pack of the vehicle is in a thermal runaway state.

[0110] The main controller is configured to start the fire extinguishing device when the first signal is received.

[0111] In a possible implementation, the system further comprises a smoke sensor connected to the main controller.

[0112] The smoke sensor is configured to acquire smoke concentration and smoke concentration rising rate of the parking space when the vehicle is in the parking space.

[0113] The smoke sensor is configured to send a second signal to the main controller when the smoke concentration meets a second specified condition or the smoke concentration rising rate meets a third specified condition. The second signal is used to indicate that the smoke concentration of the parking space is in an abnormal state.

[0114] The main controller is configured to start the fire extinguishing device when the second signal is received.

[0115] In a possible implementation, the system further comprises a monitoring device connected to the main controller.

[0116] a monitoring device configured to acquire license plate information of a vehicle entering a parking space;

[0117] a main controller configured to control the fire extinguishing system to be in an unlocked state when the license plate information meets a fourth specified condition.

[0118] In a possible implementation, the fire extinguishing device comprises a spraying device and a liquid nitrogen device.

[0119] The spraying device is configured to spray water towards the vehicle when the fire extinguishing device is activated.

[0120] The liquid nitrogen device is configured to spray liquid nitrogen towards the battery pack when the fire extinguishing device is activated.

[0121] In a possible implementation, the liquid nitrogen device comprises a liquid nitrogen tank, a protection device and a lifting device. The protection device is configured to protect the liquid nitrogen tank when the vehicle is not in the parking space, and the lifting device is configured to lift the liquid nitrogen tank when the fire extinguishing device is activated.

[0122] As to the protection system, the main controller, and the charging controller, the fire extinguishing device, the smoke sensor, the monitoring device and the ground lock device connected to the main controller, the specific manners in which the above-mentioned components perform operations have been described in detail in the embodiments of the method, and thus will not be described in detail here.

[0123] Please refer to Figure 4 , which shows a flowchart of a protection method for a parking space provided by an example embodiment of the present application. The method can be performed by a protection system, which comprises a main controller, and a charging controller, a fire extinguishing device, a smoke sensor, a monitoring device and a ground lock device connected to the main controller. Optionally, the protection system can be Figure 1 the protection system in the system shown in Figure 4 A protection method for a parking space comprises the following steps:

[0124] Step 401: acquiring, by a monitoring device, license plate information of a vehicle entering a parking space;

[0125] Step 402: controlling, by a main controller, the ground lock device and the fire extinguishing system to be in an unlocked state when the license plate information meets a fourth specified condition.

[0126] Step 403: acquiring, by a smoke sensor, smoke concentration and smoke concentration rising rate of the parking space when the vehicle is in the parking space.

[0127] Step 404: In the case that the smoke concentration meets the second specified condition or the smoke concentration rising rate meets the third specified condition, a second signal is sent to the main controller by the smoke sensor; the second signal is used to indicate that the smoke concentration of the parking space is in an abnormal state.

[0128] Step 405: In the case that the vehicle is in the parking space and the charging controller is in the working state, the battery pack state information of the vehicle is obtained by the charging controller; the battery pack state information includes the voltage and temperature of the battery pack.

[0129] Step 406: In the case that the battery pack state information meets the first specified condition, a first signal is sent to the main controller by the charging controller; the first signal is used to indicate that the battery pack of the vehicle is in an abnormal state.

[0130] Step 407: In the case that the first signal and / or the second signal is received, the fire extinguishing device is started by the main controller.

[0131] The execution mode of steps 401 to 407 is the same as that of the above-mentioned embodiments of the application, which will not be repeated here.

[0132] With the popularization of electric vehicles, the number of cases of self-ignition and fire of electric vehicles in parking spaces is increasing every year. Due to the lack of timely discovery, the vehicle is burned, and even spreads to the cars parked on the adjacent parking spaces, which causes serious large-scale fire spread out of control, causing immeasurable economic loss and even life danger to the car owner.

[0133] Therefore, the parking space is not only a temporary parking point for the vehicle, and the user hopes that the parking space can have the functions of vehicle identification, vehicle charging, and vehicle protection and monitoring when no one is present. Based on any one or more of the above embodiments, the present embodiment proposes an electric vehicle intelligent parking space for preventing fire and a protection method.

[0134] Please refer to Figure 5 which shows a schematic diagram of an electric vehicle intelligent parking space for preventing fire provided by an example embodiment of the present application. As Figure 5 shown, the intelligent parking space is divided into a main control device (not shown in the figure), and a ground device 501, a monitoring device 502, a smoke sensor 503, a liquid nitrogen device 504, a spray head device 505, and a charging device 506 connected to the main control device.

[0135] The main control device is a total controller of the intelligent parking space, and coordinates the cooperative work of the sensors and other devices. Optionally, the main control device can be integrated with the charging device 506. The ground surface device 501 provides a vehicle parking space and a parking lock. The monitoring device 502 includes an intelligent camera for real-time monitoring of the vehicle state. Optionally, the monitoring device 502 is arranged above the parking space. The smoke sensor 503 is used to sense the smoke condition in the surrounding environment to monitor and warn in real time whether the vehicle in the parking space is on fire. The liquid nitrogen device 504 is used to spray liquid nitrogen on the battery pack under the vehicle to cool and extinguish the fire in time after the vehicle is on fire. Optionally, the smoke sensor 503 and the liquid nitrogen device 504 can be arranged directly below the battery pack when the vehicle is parked in the parking space. The spray head device 505 is used to spray water downward on the electric vehicle through the rain shower head above the parking space to extinguish the fire. Optionally, the spray head device 505 can be arranged at the four corners above the parking space. If the main control device detects a signal that the electric vehicle is on fire during parking, the four spray heads will immediately open to spray water on the electric vehicle to extinguish the fire. The charging device 506 includes a charging pile beside the parking space, which is used to supplement the power of the electric vehicle in time.

[0136] Through the cooperative monitoring of the above-mentioned devices, an intelligent parking space is formed to provide real-time safety protection for the vehicle and prevent further loss of property and life safety of the electric vehicle user.

[0137] Please refer to Figure 6 which shows a schematic diagram of the cooperative work of the devices according to an example embodiment of the present application. As Figure 6 shown, the monitoring device 502 can obtain the license plate information of the vehicle entering the parking space. If the license plate information meets the conditions, the main control device can control the unlocking of the parking lock device, the liquid nitrogen device 504, and the spray head device 505. When the smoke sensor 503 detects that the smoke concentration reaches a threshold value, or when the charging device 506 detects an abnormal state of the battery pack, the main control device can control the liquid nitrogen device 504 to rise above the ground and spray liquid nitrogen, and control the spray head device 505 to spray water to extinguish the fire.

[0138] Please refer to Figure 7 which shows a schematic diagram of the protection method of the electric vehicle intelligent parking space for preventing fire according to an example embodiment of the present application. As Figure 7As shown, the intelligent camera monitors the state of the parking space in real time, and judges whether a vehicle has entered the parking space. In the case where a vehicle has entered the parking space, it is judged whether it is a specified vehicle. The judgment of whether it is a specified vehicle can be a judgment of whether it is an electric vehicle, or it can also be a judgment of whether it is a vehicle with a specified license plate number. In the case where the vehicle is a specified vehicle, the intelligent camera transmits a signal to the master control device, so that the master control device enters a working state, and the master control device controls the ground lock device to automatically descend, so that the vehicle can normally enter the parking space. In the case where the vehicle is not a specified vehicle, the intelligent camera can issue an audible and visual alarm signal to prompt the vehicle to leave the parking space, and the ground lock device maintains a locked state.

[0139] After the master control device enters the working state, it can also unlock the liquid nitrogen device and the spray head device. If the charging device detects a plug-in charging action, the master control device enters a real-time working mode; if there is only parking without plug-in charging action, the master control device enters a timing monitoring mode. After the electric vehicle is plugged in for charging, the charging device can collect and monitor the battery pack state in real time through the CAN line. When a thermal runaway alarm signal is read from the battery pack BMS, the power will be immediately cut off, and a signal will be uploaded to the master control device to control the liquid nitrogen device and the spray head device to work simultaneously to achieve the vehicle fire extinguishing function.

[0140] The liquid nitrogen device includes a safety-protected liquid nitrogen tank and a valve controller. Under normal circumstances, the liquid nitrogen is stored in a safe area below the ground of the parking space. After the vehicle enters the parking space, the master control device controls the liquid nitrogen valve controller to open and prepare for work. After receiving the vehicle danger signal sent by the charging device, the master control device will control the liquid nitrogen device to immediately rise above the ground and open the valve to spray liquid nitrogen towards the vehicle chassis.

[0141] The electric vehicle battery pack is located on the underside of the vehicle chassis, facing the ground. Once an abnormal smoke concentration signal is received from the smoke sensor, or a battery pack danger signal is received from the charging device, the master control device can control the liquid nitrogen device to open and spray liquid nitrogen towards the vehicle battery pack. The evaporation of liquid nitrogen absorbs a large amount of heat, which can rapidly cool the battery pack and control the fire from further spreading. At the same time, the master control device can control the four spray heads of the spray head device to open and spray water towards the electric vehicle to extinguish the fire.

[0142] Please refer to Figure 8 , which shows a block diagram of a protection device for a parking space provided by an example embodiment of the present application. The protection device for a parking space can be implemented as all or part of a computer device in a hardware or software and hardware combined manner to implement all or part of the steps in the above Figure 2 embodiment. As shown in Figure 8 , the device includes:

[0143] The information acquisition module 801 is configured to acquire, by the charging controller, battery pack state information of the vehicle when the vehicle is in a parking space and the charging controller is in a working state; the battery pack state information comprises voltage and temperature of the battery pack.

[0144] The first sending module 802 is configured to send, by the charging controller, a first signal to the main controller when the battery pack state information meets first specified conditions; the first signal is used to indicate that the battery pack of the vehicle is in an abnormal state.

[0145] The first starting module 803 is configured to start, by the main controller, the fire extinguishing device when the first signal is received.

[0146] In a possible implementation, the protection system further comprises a smoke sensor connected to the main controller; the device further comprises:

[0147] The smoke acquisition module is configured to acquire, by the smoke sensor, smoke concentration and smoke concentration rising rate of the parking space when the vehicle is in the parking space.

[0148] The second sending module is configured to send, by the smoke sensor, a second signal to the main controller when the smoke concentration meets second specified conditions or the smoke concentration rising rate meets third specified conditions; the second signal is used to indicate that the smoke concentration of the parking space is in an abnormal state.

[0149] The second starting module is configured to start, by the main controller, the fire extinguishing device when the second signal is received.

[0150] In a possible implementation, the protection system further comprises a monitoring device connected to the main controller; the device further comprises:

[0151] The license plate acquisition module is configured to acquire, by the monitoring device, license plate information of a vehicle entering the parking space.

[0152] The unlocking module is configured to control, by the main controller, the fire extinguishing system to be in an unlocked state when the license plate information meets fourth specified conditions.

[0153] In a possible implementation, the fire extinguishing device comprises a spraying device and a liquid nitrogen device.

[0154] The spraying device is configured to spray water towards the vehicle when the fire extinguishing device is started.

[0155] The liquid nitrogen device is configured to spray liquid nitrogen towards the battery pack when the fire extinguishing device is started.

[0156] In a possible implementation, the liquid nitrogen device comprises a liquid nitrogen tank, a protection device and a lifting device; the protection device is used for protecting the liquid nitrogen tank when the vehicle is not in a parking position, and the lifting device is used for lifting the liquid nitrogen tank when the fire extinguishing device is started.

[0157] It should be noted that the device provided by the above embodiment is only exemplified by the division of the above functional modules when realizing its function, and in actual application, the above functions can be completed by different functional modules according to actual needs, that is, the content structure of the device is divided into different functional modules to complete all or part of the above described functions.

[0158] As to the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment related to the method; the technical effects achieved by the operations of each module are the same as those in the embodiment related to the method, and will not be described in detail here.

[0159] Please refer to Figure 9 which shows a structural schematic diagram of a computer device provided by an example embodiment of the present application. The computer device 900 includes a central processing unit (CPU) 901, a system memory 904 including a random access memory (RAM) 902 and a read-only memory (ROM) 903, and a system bus 905 connecting the system memory 904 and the central processing unit 901. The computer device 900 also includes a basic input / output system (I / O system) 906 to help transfer information between various devices in the computer, and a mass storage device 907 for storing an operating system 913, application programs 914 and other program modules 915.

[0160] The basic input / output system 906 includes a display 908 for displaying information and an input device 909 such as a mouse, keyboard, etc. for user input. The display 908 and the input device 909 are both connected to the central processing unit 901 through the input / output controller 910 connected to the system bus 905. The basic input / output system 906 can also include an input / output controller 910 for receiving and processing input from a keyboard, mouse, or electronic stylus, and other devices. Similarly, the input / output controller 910 also provides output to a display screen, printer, or other types of output devices.

[0161] The mass storage device 907 is connected to the central processing unit 901 through a mass storage controller (not shown) connected to the system bus 905. The mass storage device 907 and its associated computer readable medium provide nonvolatile storage for the computer device 900. That is, the mass storage device 907 can include a computer readable medium (not shown) such as a hard disk or a CD-ROM (Compact Disc Read-Only Memory) drive.

[0162] Without loss of generality, computer readable media can include computer storage media and communication media. Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes RAM (Random Access Memory), ROM (Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory or other solid state memory technology, CD-ROM, digital video disk (DVD), or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices. Computer storage media would not, however, include communication media including wired or wireless signaling media that transmit computer readable instructions by tansitory signals, such as carried by carrier waves, electromagnetic signals, or the like. The system memory 904 and mass storage device 907 described above can collectively be referred to as memory.

[0163] The computer device 900 can be connected to the Internet or other network devices through the network interface unit 911 connected to the system bus 905.

[0164] The memory also includes one or more programs stored therein, which one or more programs, when executed by the central processing unit 901, implement all or part of the steps of the methods shown in the various embodiments described above. Figure 2 、 Figure 3

[0165] In exemplary embodiments, there is also provided a chip comprising programmable logic circuitry and / or program instructions for implementing all or part of the steps of the methods shown in the various embodiments described above when the chip is run on a computer device.

[0166] ​In an example embodiment, a computer program product is also provided, which includes computer instructions stored in a computer readable storage medium. A processor of a computer device reads the computer instructions from the computer readable storage medium, and the processor reads and executes the computer instructions from the computer readable storage medium to implement all or part of the steps of the method shown in the various embodiments of the present application.

[0167] In an example embodiment, a computer readable storage medium is also provided, which stores a computer program loaded and executed by a processor to implement all or part of the steps of the method shown in the various embodiments of the present application.

[0168] A person of ordinary skill in the art can understand that all or part of the steps of the above-mentioned embodiments can be completed by hardware, or by program instructing relevant hardware, and the above-mentioned program can be stored in a computer readable storage medium, and the above-mentioned storage medium can be a read-only memory, a magnetic disk or an optical disk, etc.

[0169] A person of ordinary skill in the art should be aware that, in one or more examples described above, the functions described in the embodiments of the present application can be implemented in hardware, software, firmware or any combination thereof. When implemented in software, the functions can be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium. The computer readable medium includes computer storage medium and communication medium, and the communication medium includes any medium that facilitates the transfer of computer program from one place to another. The storage medium can be any available medium accessible by a general or special purpose computer.

[0170] The above is only an optional embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A protection method for parking spaces, characterized in that, The method is executed by a protection system, which includes a main controller, a charging controller connected to the main controller, and a fire extinguishing device; the method includes: When the vehicle is in the parking space and the charging controller is in operation, the battery pack status information of the vehicle is obtained through the charging controller; the battery pack status information includes the voltage and temperature of the battery pack. When the battery pack status information meets a first specified condition, the charging controller sends a first signal to the main controller; the first signal is used to indicate that the vehicle's battery pack is in an abnormal state. Upon receiving the first signal, the fire extinguishing equipment is activated via the main controller; The fire extinguishing equipment includes a spray system and a liquid nitrogen system; The sprinkler system is used to spray water toward the vehicle when the fire extinguishing equipment is activated; The liquid nitrogen device is used to spray liquid nitrogen toward the battery pack when the fire extinguishing equipment is activated; The liquid nitrogen equipment includes a liquid nitrogen tank, a protective device, and a lifting device; the protective device is used to protect the liquid nitrogen tank when the vehicle is not in the parking space, and the lifting device is used to raise the liquid nitrogen tank when the fire extinguishing equipment is activated.

2. The method according to claim 1, characterized in that, The protection system also includes a smoke sensor connected to the main controller; the method further includes: When the vehicle is in the parking space, the smoke concentration and the rate of increase of the smoke concentration in the parking space are obtained by the smoke sensor. If the smoke concentration meets a second specified condition or the smoke concentration rise rate meets a third specified condition, the smoke sensor sends a second signal to the main controller; the second signal is used to indicate that the smoke concentration in the parking space is in an abnormal state. Upon receiving the second signal, the fire extinguishing equipment is activated via the main controller.

3. The method according to claim 1, characterized in that, The protection system further includes a monitoring device connected to the main controller; the method further includes: The monitoring equipment is used to obtain the license plate information of vehicles entering the parking space. If the license plate information meets the fourth specified condition, the main controller controls the fire extinguishing equipment to be in an unlocked state.

4. A protective system for parking spaces, characterized in that, The system includes a main controller, as well as a charging controller and fire extinguishing equipment connected to the main controller; The charging controller is used to acquire the battery pack status information of the vehicle when the vehicle is in the parking space and the charging controller is in a working state; the battery pack status information includes the voltage and temperature of the battery pack. The charging controller is configured to send a first signal to the main controller when the battery pack status information meets a first specified condition; the first signal is used to indicate that the vehicle's battery pack is in a thermal runaway state. The main controller is used to activate the fire extinguishing equipment upon receiving the first signal; The fire extinguishing equipment includes a spray system and a liquid nitrogen system; The sprinkler system is used to spray water toward the vehicle when the fire extinguishing equipment is activated; The liquid nitrogen device is used to spray liquid nitrogen toward the battery pack when the fire extinguishing equipment is activated; The liquid nitrogen equipment includes a liquid nitrogen tank, a protective device, and a lifting device; The protective device is used to protect the liquid nitrogen tank when the vehicle is not in the parking space, and the lifting device is used to lift the liquid nitrogen tank when the fire extinguishing equipment is activated.

5. A protective device for parking spaces, characterized in that, The device includes: A protective system for parking spaces as described in claim 4; The information acquisition module is used to acquire the battery pack status information of the vehicle through the charging controller when the vehicle is in the parking space and the charging controller is in working state; the battery pack status information includes the voltage and temperature of the battery pack. The first sending module is configured to send a first signal to the main controller through the charging controller when the battery pack status information meets a first specified condition; the first signal is used to indicate that the vehicle's battery pack is in an abnormal state. The first activation module is used to activate the fire extinguishing equipment via the main controller upon receiving the first signal.

6. A computer device, characterized in that, The computer device includes a processor and a memory, the memory storing at least one computer instruction, which is loaded and executed by the processor to implement the protection method for parking spaces as described in any one of claims 1 to 3.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores at least one computer instruction, which is loaded and executed by a processor to implement the protection method for parking spaces as described in any one of claims 1 to 3.

8. A computer program product, characterized in that, The computer program product includes computer instructions stored in a computer-readable storage medium; the computer instructions are read and executed by a processor of a computer device to implement the protection method for parking spaces as described in any one of claims 1 to 3.

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