Automobile safety warning method and system

Abstract

The embodiment of the present application discloses a method and system for automobile safety warning, which belongs to the field of automobile technology. Using this method, the vehicle-mounted terminal can determine whether the cylinder is working normally by monitoring the air pressure parameter value and working status of the cylinder in real time. After determining that the cylinder is working abnormally, the vehicle-mounted terminal can prompt the user to take corresponding measures. Since the air pressure parameter value of the cylinder is generally affected after the engine component is damaged. Therefore, by monitoring the air pressure parameter value of the cylinder in real time, it can be determined that the engine is damaged and the car may have safety problems. In this way, by using the air pressure parameter value of the cylinder for safety warning, users can discover problems with the car in time and avoid the occurrence of safety accidents, which can improve the safety of car driving.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a method and system for automobile safety warning. Background Art

[0002] In the field of automotive technology, various safety issues are particularly important. To reduce the occurrence of safety issues, drivers regularly visit 4S stores or auto repair shops for vehicle maintenance to identify and replace problematic parts. The engine is the primary power source for a vehicle, making engine maintenance particularly crucial.

[0003] However, sometimes accidents can damage the engine, affecting the vehicle's safety. If these problems are not discovered in time, they can lead to accidents. Therefore, simply maintaining your car regularly is not enough to ensure safety. Summary of the Invention

[0004] The embodiments of the present application provide a method and system for automobile safety warning, which can solve the problems of related technologies. The technical solution is as follows:

[0005] In a first aspect, a method for automobile safety warning is provided. The method is applied to an automobile safety warning system, wherein the automobile safety warning system includes an onboard terminal, a mobile terminal, and a server. The method includes:

[0006] The vehicle-mounted terminal obtains the air pressure parameter value of the cylinder of the engine according to a preset period, and determines the working state of the cylinder, wherein the working state is an intake state, an exhaust state or a stop state;

[0007] The vehicle-mounted terminal determines multiple air pressure ranges corresponding to the working state, and determines the air pressure range to which the air pressure parameter value belongs, wherein the multiple air pressure ranges include a first range, a second range, and a third range, the first range is used to indicate that the cylinder is in a safe working state, the second range is used to indicate that the cylinder is in a normal working state but requires maintenance, and the third range is used to indicate that the cylinder is in a dangerous working state;

[0008] If the air pressure range determined by the vehicle-mounted terminal is the second range, the vehicle-mounted terminal displays the first warning prompt information when the target vehicle is in the start-up state, and the vehicle-mounted terminal sends the first warning prompt information to the mobile terminal when the target vehicle is not in the start-up state, so that the mobile terminal displays the first warning prompt information, wherein the first warning prompt information is used to prompt the user to perform maintenance on the engine; if the air pressure range determined by the vehicle-mounted terminal is the third range, the vehicle-mounted terminal displays the second warning prompt information when the target vehicle is in the start-up state, and voice broadcasts the second warning prompt information, and the vehicle-mounted terminal sends the second warning prompt information to the mobile terminal when the target vehicle is not in the start-up state, so that the mobile terminal displays the second warning prompt information, wherein the second warning prompt information is used to prompt the user to stop driving the target vehicle.

[0009] In a possible implementation, the method further includes:

[0010] When the vehicle-mounted terminal or the mobile terminal detects a user clicking on a maintenance control, the vehicle-mounted terminal or the mobile terminal sends a maintenance notification to the server, wherein the maintenance notification is used to prompt the server to monitor the position of the engine;

[0011] The server obtains the position of the engine and the position of the target vehicle at a preset period, and determines whether the distance between the position of the engine and the position of the target vehicle is within a specified range, and if the distance between the position of the engine and the position of the target vehicle is not within the specified range, sends a third warning prompt information to the mobile terminal;

[0012] The mobile terminal displays the third warning prompt information and performs voice broadcast.

[0013] In a possible implementation, the method further includes:

[0014] When the vehicle-mounted terminal or the mobile terminal detects a user clicking operation on the replacement control, the vehicle-mounted terminal or the mobile terminal sends a replacement notification to the server, wherein the replacement notification carries the target model of the engine;

[0015] The mobile terminal obtains the model of the replaced engine by scanning the graphic code and sends it to the server;

[0016] The server determines whether the model of the replaced engine is the same as the target model, and if the model of the replaced engine is different from the target model, sends a fourth warning prompt message to the mobile terminal;

[0017] The mobile terminal displays the fourth warning prompt information and performs voice broadcast.

[0018] In a possible implementation, the method further includes:

[0019] The server determines, based on the start time of use and the upper limit of the use duration of the target device, whether the target device needs to be replaced; and if the target device needs to be replaced, sends a fifth warning prompt message to the in-vehicle terminal and the mobile terminal, wherein the fifth warning prompt message is used to prompt the user to replace the target device;

[0020] The vehicle-mounted terminal and the mobile terminal display the fifth warning prompt information and perform voice broadcast.

[0021] In a possible implementation, the method further includes:

[0022] The vehicle-mounted terminal sends the start time of use, upper limit of use time and model of the target device to the server;

[0023] The server stores the start time of use, the upper limit of use time and the model of the target device.

[0024] In a second aspect, a vehicle safety warning system is provided, the vehicle safety warning system comprising a vehicle-mounted terminal, a mobile terminal, and a server, wherein:

[0025] The vehicle-mounted terminal is used to:

[0026] The air pressure parameter value of the cylinder of the engine is obtained according to a preset period, and the working state of the cylinder is determined, wherein the working state is an intake state, an exhaust state or a stop state; multiple air pressure ranges corresponding to the working state are determined, and the air pressure range to which the air pressure parameter value belongs is determined, wherein the multiple air pressure ranges include a first range, a second range and a third range, the first range is used to indicate that the cylinder is in a safe working state, the second range is used to indicate that the cylinder is in a normal working state but needs maintenance, and the third range is used to indicate that the cylinder is in a dangerous working state; if the determined air pressure range is the second range, the vehicle-mounted terminal displays a first warning prompt message when the target vehicle is in the starting state, and the vehicle-mounted terminal When the target vehicle is not in the starting state, the terminal sends the first warning prompt information to the mobile terminal, so that the mobile terminal displays the first warning prompt information, wherein the first warning prompt information is used to prompt the user to repair and maintain the engine; if the determined air pressure range is the third range, then when the target vehicle is in the starting state, the on-board terminal displays the second warning prompt information and voice broadcasts the second warning prompt information, and when the target vehicle is not in the starting state, the on-board terminal sends the second warning prompt information to the mobile terminal, so that the mobile terminal displays the second warning prompt information, wherein the second warning prompt information is used to prompt the user to stop driving the target vehicle.

[0027] In a possible implementation, the vehicle-mounted terminal is further configured to:

[0028] When detecting a user clicking operation on the maintenance control, sending a maintenance notification to the server, wherein the maintenance notification is used to prompt the server to monitor the position of the engine;

[0029] The mobile terminal is used to:

[0030] When detecting a user clicking operation on the maintenance control, sending a maintenance notification to the server, wherein the maintenance notification is used to prompt the server to monitor the position of the engine;

[0031] The server is used to:

[0032] acquiring the position of the engine and the position of the target vehicle at a preset period, and determining whether the distance between the position of the engine and the position of the target vehicle is within a specified range, and sending a third warning prompt information to the mobile terminal if the distance between the position of the engine and the position of the target vehicle is not within the specified range;

[0033] The mobile terminal is further used for:

[0034] The third warning prompt information is displayed and voice broadcast is performed.

[0035] In a possible implementation, it is characterized in that the vehicle-mounted terminal is further used to:

[0036] When detecting a user clicking operation on a replacement control, sending a replacement notification to the server, wherein the replacement notification carries the target model of the engine;

[0037] The mobile terminal is further used for:

[0038] When a user clicks on a replacement control, a replacement notification is sent to the server, wherein the replacement notification carries the target model of the engine; the model of the replaced engine is obtained by scanning the graphic code and sent to the server;

[0039] The server is further configured to:

[0040] determining whether the model of the replaced engine is the same as the target model, and if the model of the replaced engine is different from the target model, sending a fourth warning prompt message to the mobile terminal;

[0041] The mobile terminal is further used for:

[0042] The fourth warning prompt information is displayed and voice broadcast is performed.

[0043] In a possible implementation, the server is further configured to:

[0044] determining, based on the start time of use and the upper limit of the use duration of the target device, whether the target device needs to be replaced; and if the target device needs to be replaced, sending a fifth warning prompt message to the in-vehicle terminal and the mobile terminal, wherein the fifth warning prompt message is used to prompt the user to replace the target device;

[0045] The vehicle-mounted terminal is further used for:

[0046] Displaying the fifth warning prompt information and performing voice broadcast;

[0047] The mobile terminal is further used for:

[0048] The fifth warning prompt information is displayed and voice broadcast is performed.

[0049] In a possible implementation, the vehicle-mounted terminal is further configured to:

[0050] Sending the start time of use, upper limit of use time and model of the target device to the server;

[0051] The server is further configured to store the start time of use, the upper limit of use time, and the model of the target device.

[0052] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0053] Through the method provided in the embodiment of the present application, the vehicle-mounted terminal can determine whether the cylinder is working normally by monitoring the air pressure parameter value and working status of the cylinder in real time. When the vehicle-mounted terminal determines that the cylinder needs to be repaired and maintained or is in a dangerous working state, if the car has been started, the corresponding early warning prompt information is displayed to prompt the user to take corresponding measures. If the car has not been started, an early warning prompt information is sent to the mobile terminal, and the mobile terminal displays the corresponding early warning prompt information to prompt the user to take corresponding measures. Since the air pressure parameter value of the cylinder is generally affected after the engine component is damaged. Therefore, by monitoring the air pressure parameter value of the cylinder in real time, it can be determined that the engine is damaged and the car may have safety problems. In this way, by using the air pressure parameter value of the cylinder for safety warning, users can find problems with the car in time and avoid the occurrence of safety accidents, which can improve the safety of car driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0055] Figure 1 This is a structural diagram of an automobile safety warning system provided by an embodiment of the present application;

[0056] Figure 2 This is a schematic diagram of the structure of a server provided in an embodiment of the present application;

[0057] Figure 3 This is a schematic diagram of the structure of a terminal provided in an embodiment of the present application;

[0058] Figure 4 This is a flow chart of a method for automobile safety warning provided by an embodiment of the present application;

[0059] Figure 5 This is a schematic diagram of an engine interface of an automobile safety warning application provided by an embodiment of the present application;

[0060] Figure 6 This is a schematic diagram of a display interface for a first warning prompt message provided in an embodiment of the present application;

[0061] Figure 7 This is a schematic diagram of a display interface for a second warning prompt information provided in an embodiment of the present application;

[0062] Figure 8 This is a flow chart of a method for automobile safety warning provided by an embodiment of the present application;

[0063] Figure 9 This is a flow chart of a method for automobile safety warning provided by an embodiment of the present application;

[0064] Figure 10 This is a flow chart of a method for automobile safety warning provided by an embodiment of the present application;

[0065] Figure 11 This is a schematic diagram of the structure of a terminal provided in an embodiment of the present application. DETAILED DESCRIPTION

[0066] The embodiment of the present application provides a method for automobile safety warning, which is applied to an automobile safety warning system. The automobile safety system includes a server, an onboard terminal and a mobile terminal, and its structure is as follows: Figure 1 This method can determine the state of the car in real time and give a warning to the user based on the determination result.

[0067] From the perspective of hardware composition, the server structure can be as follows Figure 2 As shown, it includes a processor 210, a memory 220, and a communication component 240.

[0068] The processor 210 may be a CPU (central processing unit) or a SoC (system on chip), etc. The processor 210 may be configured to execute various instructions involved in the method.

[0069] The memory 220 may include various volatile memories or non-volatile memories, such as SSD (solid state disk), DRAM (dynamic random access memory), etc. The memory 220 may be used to store relevant information about the vehicle, such as the engine model.

[0070] The communication component 230 may be a wired network connector, a WiFi (wireless fidelity) module, a Bluetooth module, a cellular network communication module, etc. The communication component may be used to transmit data with other devices, such as servers or other terminals.

[0071] From the perspective of hardware composition, the structure of vehicle-mounted terminals and mobile terminals can be as follows: Figure 3 As shown, it includes a processor 310, a memory 320, a display component 330, and a communication component 340.

[0072] The processor 310 may be a CPU or a SoC, etc. The processor 310 may be used to execute various instructions involved in the method, etc.

[0073] The memory 320 may include various volatile memories or non-volatile memories, such as SSD, DRAM memory, etc. The memory 320 may be used to store pre-stored data, intermediate data, and result data for determining the working state of the cylinder, for example, the air pressure range.

[0074] The display component 330 can be an independent screen, or a screen integrated with the terminal body, a projector, etc. The screen can be a touch screen or a non-touch screen. The display component is used to display warning prompt information.

[0075] The communication component 340 may be a wired network connector, a WiFi module, a Bluetooth module, a cellular network communication module, etc. The communication component may be used to transmit data with other devices, such as servers or other terminals.

[0076] In addition to the processor and memory, the terminal may also include an audio acquisition component, an audio output component, and the like.

[0077] The audio collection component may be a microphone for collecting the user's voice, and the audio output component may be a speaker, earphones, etc. for playing audio.

[0078] With the development of society and the economy, almost every family now owns a car. Car safety has always been a major concern for many people. Therefore, regular car inspections are necessary to identify any problems promptly. Alternatively, terminals can provide early warnings of potential safety issues, reminding users to inspect their cars.

[0079] The embodiments of the present application provide an automobile safety warning application for the aforementioned application scenarios. Through this application, the vehicle's status can be monitored in real time, providing warnings when potential safety issues may arise. Through this application, the usage time of multiple devices in the vehicle can be monitored, providing warnings when usage time exceeds the maximum usage time limit. Through this application, users can proactively check the vehicle's status and the usage time of each device in the vehicle.

[0080] The embodiment of the present application provides a method for automobile safety warning, which is used to give an early warning when a problem occurs in the engine of the automobile. The processing flow of the method can be as follows: Figure 4As shown, the following processing steps are included:

[0081] 401. The vehicle-mounted terminal obtains the air pressure parameter value of the cylinder of the engine according to a preset period and determines the working state of the cylinder.

[0082] The working state is an air intake state, an air discharge state or a stop state.

[0083] In practice, the engine, as the primary power source for a vehicle, is crucial to its safety. Therefore, the engine's real-time operating status can be used to determine whether the vehicle is in a safe state. The cylinder is a critical component of the engine, and problems with other engine components can also affect its operation. Therefore, the real-time cylinder pressure parameter can be used to determine whether the engine is operating properly.

[0084] The vehicle's air pressure sensor transmits cylinder pressure values ​​to the vehicle terminal at a preset interval. The terminal then determines the cylinder's operating status based on each received pressure value. The terminal then uses this information to determine if the vehicle is safe.

[0085] 402, the vehicle terminal determines multiple air pressure ranges corresponding to the working state and determines the air pressure range to which the air pressure parameter value belongs. If the air pressure range determined by the vehicle terminal is the second range, proceed to step 403. If the air pressure range determined by the vehicle terminal is the third range, proceed to step 404.

[0086] Among them, the multiple air pressure ranges include a first range, a second range and a third range. The first range is used to indicate that the cylinder is in a safe working state, the second range is used to indicate that the cylinder is in a normal working state but requires maintenance, and the third range is used to indicate that the cylinder is in a dangerous working state.

[0087] In practice, each operating state corresponds to three air pressure ranges. For example, Table 1 shows the correspondence between operating states and air pressure ranges. After determining the operating state of the cylinder, the vehicle-mounted terminal determines the multiple air pressure ranges corresponding to the cylinder's operating state based on the correspondence between the operating state and air pressure ranges. Furthermore, the air pressure parameter value is determined to which air pressure range it belongs.

[0088] Table 1

[0089] Working status First range Second range The third scope Intake status 10-20 5-9、21-25 <5、>25 Exhaust state 15-20 5-14、21-25 <5、>25 Stop state 0-1 2-10 >10

[0090] If the air pressure range determined by the vehicle terminal is within the first range, the cylinder is in a safe operating state and no vehicle safety warning is required. If the air pressure range determined by the vehicle terminal is within the second range, the cylinder requires maintenance and repair, and step 403 can be performed. If the air pressure range determined by the vehicle terminal is within the third range, the cylinder is in a dangerous operating state and the user needs to stop driving the vehicle immediately, and step 404 can be performed.

[0091] Additionally, the air pressure parameter value can be marked based on the determined air pressure range. For example, if the determined air pressure range is the first range, the corresponding air pressure parameter value can be marked as safe. If the determined air pressure range is the second range, the corresponding air pressure parameter value can be marked as requiring maintenance. If the determined air pressure range is the third range, the corresponding air pressure parameter value can be marked as dangerous. Thus, when a user views the air pressure parameter value of a cylinder, the vehicle-mounted terminal or mobile terminal can display the air pressure parameter value in a corresponding color based on the marking of the air pressure parameter value. For example, if the air pressure parameter value is marked as safe, the air pressure parameter value can be displayed in green, or the indicator light corresponding to the cylinder's operating status can be displayed in green. If the air pressure parameter value is marked as requiring maintenance, the air pressure parameter value can be displayed in yellow, or the indicator light corresponding to the cylinder's operating status can be displayed in yellow. If the air pressure parameter value is marked as dangerous, the air pressure parameter value can be displayed in red, or the indicator light corresponding to the cylinder's operating status can be displayed in red.

[0092] The user can actively view the working status, air pressure parameter value, etc. of the cylinder of the target vehicle, and the relevant display interface of the application can be as follows: Figure 5 As shown. This display interface can show relevant information about the target vehicle's engine, such as the engine model, start time of use, and maximum usage time. Users can see the real-time cylinder air pressure parameter values, their corresponding operating status and air pressure range on this interface. In addition, users can click the controls on the device information interface to view relevant information about each device in the car, or click the controls on the personal interface to view relevant information about the user and the target vehicle, such as the target vehicle's model, frame number, and maintenance time.

[0093] 403, when the target vehicle is in the starting state, the vehicle terminal displays the first warning prompt information. When the target vehicle is not in the starting state, the vehicle terminal sends the first warning prompt information to the mobile terminal, so that the mobile terminal displays the first warning prompt information.

[0094] The first warning prompt information is used to prompt the user to perform maintenance on the engine. The first warning prompt information includes the latest maintenance time of the engine and the scheduled next maintenance time.

[0095] In implementation, when the target vehicle is in the starting state, a safety warning can be issued through the vehicle terminal, that is, the vehicle terminal displays the first warning prompt information, prompting the user to repair and maintain the engine. When the target vehicle is not in the starting state, a safety warning can be issued through the mobile terminal, that is, the mobile terminal displays the first warning prompt information, prompting the user to repair and maintain the engine. The display interface can be as follows Figure 6 shown.

[0096] The user can click the close control on the relevant display interface. After the vehicle terminal or mobile terminal detects the user clicking the close control operation, it will turn off the display of the first warning prompt message and display the first warning prompt message again after a preset period of time. The user can also click the timed reminder control on the relevant display interface. After detecting the user clicking the control operation, the vehicle terminal or mobile terminal will turn off the pop-up display of the first warning prompt message and jump to the reminder time setting interface, where the user can set the next reminder time of the first warning prompt message.

[0097] 404. When the target vehicle is in the starting state, the vehicle-mounted terminal displays the second warning prompt information and voice broadcasts the second warning prompt information. When the target vehicle is not in the starting state, the vehicle-mounted terminal sends the second warning prompt information to the mobile terminal so that the mobile terminal displays the second warning prompt information.

[0098] The second warning prompt information is used to prompt the user to stop driving the target vehicle.

[0099] In practice, when the target vehicle is in the starting state, a safety warning can be issued through the vehicle terminal, that is, the vehicle terminal displays the second warning prompt information and performs a voice broadcast to prompt the user to stop driving the target vehicle. When the target vehicle is not in the starting state, a safety warning can be issued through the mobile terminal, that is, the mobile terminal displays the second warning prompt information and performs a voice broadcast to prompt the user to stop driving the target vehicle. The display interface can be as follows Figure 7 As shown. A cylinder pressure parameter value in the third range indicates a relatively dangerous vehicle situation. Therefore, when the target vehicle is in the starting state, the display interface does not have a shutdown control to provide continuous safety warnings to the user. When the vehicle terminal detects that the target vehicle is stopped, the second warning prompt message is no longer displayed. When the target vehicle is not in the starting state, the display interface can be configured with a shutdown control and a timed reminder control.

[0100] The embodiment of the present application provides a method for monitoring whether an engine is stolen during the process of repairing the engine. The processing flow of the method can be as follows: Figure 8 As shown, the following processing steps are included:

[0101] 801. When the vehicle-mounted terminal or the mobile terminal detects a user clicking on a maintenance control, the vehicle-mounted terminal or the mobile terminal sends a maintenance notification to the server.

[0102] The maintenance notification is used to prompt the server to monitor the location of the engine.

[0103] In practice, when the user places the target vehicle in a car repair shop for engine repair, the user can open a related application on the vehicle terminal or mobile terminal, and on the related display interface of the application (for example, Figure 5 ), click the maintenance control corresponding to the engine. When the vehicle-mounted terminal or mobile terminal detects the user clicking the maintenance control, it sends a maintenance notification to the server. The maintenance notification can include the location information of the auto repair shop, the engine ID, the vehicle ID of the target vehicle, and the user ID.

[0104] At 802, the server obtains the engine location and the target vehicle location at a predetermined interval and determines whether the distance between the engine location and the target vehicle location is within a specified range. If the distance between the engine location and the target vehicle location is not within the specified range, a third warning prompt message is sent to the mobile terminal.

[0105] The third warning prompt information is used to prompt the user to determine whether the engine has been stolen.

[0106] During implementation, a positioning chip may be installed on the engine. After receiving the maintenance notification, the server determines the location of the engine and the location of the target vehicle, calculates the distance between the two locations, and further determines whether the distance is within a specified range. If it is within the specified range, it indicates that the engine is still on the target vehicle. If it is not within the specified range, it indicates that the engine may not be on the target vehicle, that is, the engine may be stolen. At this time, the server may send a third early warning prompt message to the mobile terminal to remind the user to determine whether the engine is stolen. In addition, the server may also determine the distance between the location of the engine and the location of the auto repair shop, and determine whether the distance is within the specified range. If it is within the specified range, it indicates that the engine is in the auto repair shop. If it is not within the specified range, it indicates that the engine may not be in the auto repair shop, that is, the engine may be stolen. At this time, the server may also send a third early warning prompt message to the mobile terminal.

[0107] 803. The mobile terminal displays the third warning prompt information and performs voice broadcast.

[0108] The embodiment of the present application provides a method for determining whether the engine model is correct after the engine is replaced. The processing flow of the method can be as follows: Figure 9 As shown, the following processing steps are included:

[0109] 901. When the vehicle-mounted terminal or the mobile terminal detects a user clicking operation on changing a control, the vehicle-mounted terminal or the mobile terminal sends a change notification to the server.

[0110] The replacement notification may include the target model of the engine, the vehicle identification of the target vehicle, and the user identification, etc.

[0111] In practice, when the user needs to replace the engine of the target vehicle, he can open the relevant application of the vehicle terminal or mobile terminal, and on the relevant display interface of the application (for example, Figure 8 ), click the replacement control corresponding to the engine. When the vehicle terminal or mobile terminal detects the user's click operation on the maintenance control, it sends a replacement notification to the server.

[0112] 902. The mobile terminal obtains the model of the replaced engine by scanning the graphic code and sends it to the server.

[0113] In practice, after replacing an engine, the user can tap the scan code control on the relevant page of the app. Upon detecting the user's tap, the mobile terminal scans the graphic code attached to the engine. By scanning the graphic code, relevant information about the replaced engine is obtained, including the engine model, replacement date, and maximum operating life. The mobile terminal then sends this information to the server for display.

[0114] 903. The server determines whether the model of the replaced engine is the same as the target model. If the model of the replaced engine is different from the target model, the server sends a fourth warning prompt message to the mobile terminal.

[0115] Among them, the fourth warning prompt information is used to remind the user that the engine model after replacement is incorrect and the user needs to confirm.

[0116] In practice, after receiving the model of the replaced engine, the server compares it with the target model. If the model matches the target model, a notification confirming the correct model match is sent to the mobile terminal. If the model differs from the target model, a fourth warning message is sent to the mobile terminal, notifying the user that the replaced engine model is incorrect and needs to be replaced.

[0117] 904. The mobile terminal displays the fourth warning prompt information and performs voice broadcast.

[0118] During implementation, when the mobile terminal displays the fourth warning prompt information, the user can click a close control in the display interface to close the pop-up window display of the fourth warning prompt information.

[0119] The embodiment of the present application provides a method for monitoring the usage time of a vehicle's equipment. The processing flow of the method can be as follows: Figure 10 As shown, the following processing steps are included:

[0120] 1001. The server determines whether the target device needs to be replaced based on the start time of use and the upper limit of the use time of the target device. If the target device needs to be replaced, the server sends a fifth warning prompt information to the vehicle terminal and the mobile terminal.

[0121] The target device may be ABS (anti-lock braking system), EBD (electric brake force distribution system), TCS (traction control system), ESP (electronic stability program), SRS (supplemental inflatable restraint system), etc. The fifth warning prompt information is used to prompt the user to replace the target device.

[0122] In implementation, when the target vehicle leaves the factory, the in-vehicle terminal can send relevant information about the target vehicle's multiple devices to a server, where it is stored in association with the target vehicle's frame number. Alternatively, a technician can determine the relevant information about the target vehicle's multiple devices and store it in association with the target vehicle's frame number on the server. The relevant information about the target vehicle's multiple devices can include the device name, model, and maximum usage time. Thus, after purchasing the target vehicle, a user can register an account. To register an account, the user can enter the frame number on the in-vehicle terminal or mobile terminal, which then sends the frame number to the server. Based on the received frame number, the server obtains relevant information about the target vehicle's multiple devices and stores the relevant information in association with the user's account. The server can determine the time the account was registered as the start time of use of the target vehicle's multiple devices. Additionally, whenever a user repairs or replaces a target device in the target vehicle, the server can obtain and store the repair or replacement time. After the target device is replaced, the time the target device replacement is completed can be determined as the start time of use of the replaced target device.

[0123] The server can determine the target device's usage expiration date based on the acquired usage start time and usage duration limit. On the usage expiration date, the server sends a fifth warning prompt message to the mobile terminal or the vehicle-mounted terminal.

[0124] 1002. The vehicle-mounted terminal and the mobile terminal display the fifth warning prompt information and perform voice broadcast.

[0125] During implementation, when the in-vehicle terminal or mobile terminal displays the fifth warning prompt message, the user can click the close control in the display interface to close the pop-up display of the fifth warning prompt message, and then display the fifth warning prompt message again after a preset period of time. The user can also click the timed reminder control in the relevant display interface. After detecting that the user has clicked the control, the in-vehicle terminal or mobile terminal will close the pop-up display of the fifth warning prompt message and jump to the reminder time setting interface, where the user can set the next reminder time for the fifth warning prompt message.

[0126] Based on the same technical concept, an embodiment of the present application further provides a vehicle safety warning system, which includes a vehicle-mounted terminal, a mobile terminal, and a server, wherein:

[0127] Vehicle-mounted terminal, used for:

[0128] The air pressure parameter value of the engine cylinder is obtained according to a preset period, and the working state of the cylinder is determined, wherein the working state is an intake state, an exhaust state or a stop state; multiple air pressure ranges corresponding to the working state are determined, and the air pressure range to which the air pressure parameter value belongs is determined, wherein the multiple air pressure ranges include a first range, a second range and a third range, the first range is used to indicate that the cylinder is in a safe working state, the second range is used to indicate that the cylinder is in a normal working state but needs maintenance, and the third range is used to indicate that the cylinder is in a dangerous working state; if the determined air pressure range is the second range, the vehicle-mounted terminal displays a first warning prompt when the target vehicle is in the starting state. Information, when the target vehicle is not in the starting state, the on-board terminal sends a first warning prompt information to the mobile terminal, so that the mobile terminal displays the first warning prompt information, wherein the first warning prompt information is used to prompt the user to repair and maintain the engine; if the determined air pressure range is the third range, then when the target vehicle is in the starting state, the on-board terminal displays the second warning prompt information, and voice broadcasts the second warning prompt information, and when the target vehicle is not in the starting state, the on-board terminal sends a second warning prompt information to the mobile terminal, so that the mobile terminal displays the second warning prompt information, wherein the second warning prompt information is used to prompt the user to stop driving the target vehicle.

[0129] In one possible implementation, the vehicle-mounted terminal is further configured to:

[0130] When a user clicks on a maintenance control, a maintenance notification is sent to the server, wherein the maintenance notification is used to prompt the server to monitor the position of the engine;

[0131] Mobile terminal for:

[0132] When a user clicks on a maintenance control, a maintenance notification is sent to the server, wherein the maintenance notification is used to prompt the server to monitor the position of the engine;

[0133] Server for:

[0134] acquiring the position of the engine and the position of the target vehicle at a preset period, and determining whether the distance between the position of the engine and the position of the target vehicle is within a specified range, and sending a third warning prompt information to the mobile terminal if the distance between the position of the engine and the position of the target vehicle is not within the specified range;

[0135] Mobile terminals are also used for:

[0136] The third warning prompt information is displayed and voice broadcast is performed.

[0137] In a possible implementation, the vehicle-mounted terminal is further configured to:

[0138] When a user clicks on a replacement control, a replacement notification is sent to the server, wherein the replacement notification carries a target engine model;

[0139] Mobile terminals are also used for:

[0140] When a user clicks on a replacement control, a replacement notification is sent to the server, wherein the replacement notification carries the target engine model; the model of the replaced engine is obtained by scanning the graphic code and sent to the server;

[0141] Server, also used for:

[0142] determining whether the model of the replaced engine is the same as the target model, and if the model of the replaced engine is different from the target model, sending a fourth warning prompt message to the mobile terminal;

[0143] Mobile terminals are also used for:

[0144] The fourth warning prompt information is displayed and voice broadcast is performed.

[0145] In a possible implementation, the server is further configured to:

[0146] Determining whether the target device needs to be replaced based on the start time of use and the upper limit of the usage time of the target device, and if the target device needs to be replaced, sending a fifth warning prompt information to the vehicle-mounted terminal and the mobile terminal, wherein the fifth warning prompt information is used to prompt the user to replace the target device;

[0147] Vehicle-mounted terminals are also used for:

[0148] Display the fifth warning prompt information and make a voice broadcast;

[0149] Mobile terminals are also used for:

[0150] The fifth warning prompt message is displayed and a voice broadcast is made.

[0151] In one possible implementation, the vehicle-mounted terminal is further configured to:

[0152] The vehicle terminal sends the start time of use, upper limit of use time and model of the target device to the server;

[0153] The server is also used to store the start time of use, maximum usage time, and model of the target device.

[0154] Through the system provided by the embodiment of the present application, the vehicle-mounted terminal can determine whether the cylinder is working normally by monitoring the air pressure parameter value and working status of the cylinder in real time. When the vehicle-mounted terminal determines that the cylinder needs to be repaired and maintained or is in a dangerous working state, if the car has been started, the corresponding early warning prompt information is displayed to prompt the user to take corresponding measures. If the car has not been started, an early warning prompt information is sent to the mobile terminal, and the mobile terminal displays the corresponding early warning prompt information to prompt the user to take corresponding measures. Since the air pressure parameter value of the cylinder is generally affected after the engine component is damaged. Therefore, by monitoring the air pressure parameter value of the cylinder in real time, it can be determined that the engine is damaged and the car may have safety problems. In this way, by using the air pressure parameter value of the cylinder for safety warning, users can find problems with the car in time and avoid the occurrence of safety accidents, which can improve the safety of car driving.

[0155] It should be noted that the automobile safety warning system provided in the above embodiment is merely an example of the division of the above functional modules when providing safety warnings. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the automobile safety warning system provided in the above embodiment and the automobile safety warning method embodiment are based on the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0156] Figure 11The following is a block diagram of the structure of a vehicle-mounted terminal or mobile terminal 1100 provided in an embodiment of the present application. The electronic device may be any of the terminals in the above embodiments. The electronic device 1100 may be a portable mobile terminal, such as a smartphone, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III), an MP4 player (Moving Picture Experts Group Audio Layer IV), a laptop computer, or a desktop computer. The electronic device 1100 may also be referred to as a user device, a portable terminal, a laptop terminal, a desktop terminal, or other names.

[0157] Typically, the electronic device 1100 includes a processor 1101 and a memory 1102 .

[0158] The processor 1101 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 1101 may be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), or PLA (Programmable Logic Array). The processor 1101 may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor 1101 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 1101 may also include an AI (Artificial Intelligence) processor, which is used to process computing operations related to machine learning.

[0159] Memory 1102 may include one or more computer-readable storage media, which may be non-transitory. Memory 1102 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices and flash memory storage devices. In some embodiments, the non-transitory computer-readable storage medium in memory 1102 is used to store at least one instruction, which is used to be executed by processor 1101 to implement the method provided in the embodiments of the present application.

[0160] In some embodiments, electronic device 1100 may optionally include a peripheral device interface 1103 and at least one peripheral device. Processor 1101, memory 1102, and peripheral device interface 1103 may be connected via a bus or signal lines. Each peripheral device may be connected to peripheral device interface 1103 via a bus, signal lines, or circuit boards. Specifically, the peripheral device may include at least one of a radio frequency circuit 1104, a display screen 1105, a camera assembly 1106, an audio circuit 1107, a positioning assembly 1108, and a power supply 1109.

[0161] The peripheral device interface 1103 can be used to connect at least one I / O (Input / Output)-related peripheral device to the processor 1101 and the memory 1102. In some embodiments, the processor 1101, the memory 1102, and the peripheral device interface 1103 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 1101, the memory 1102, and the peripheral device interface 1103 can be implemented on separate chips or circuit boards, which is not limited in this embodiment.

[0162] The RF circuit 1104 is used to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The RF circuit 1104 communicates with communication networks and other communication devices via electromagnetic signals. The RF circuit 1104 converts electrical signals into electromagnetic signals for transmission, or converts received electromagnetic signals into electrical signals. Optionally, the RF circuit 1104 includes an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a user identity module card, and the like. The RF circuit 1104 can communicate with other terminals via at least one wireless communication protocol. Such wireless communication protocols include, but are not limited to, the World Wide Web, metropolitan area networks, intranets, various generations of mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and / or WiFi (Wireless Fidelity) networks. In some embodiments, the RF circuit 1104 may also include circuitry related to Near Field Communication (NFC), although this application does not limit this.

[0163] The display screen 1105 is used to display a UI (User Interface). The UI may include graphics, text, icons, videos, and any combination thereof. When the display screen 1105 is a touch screen display, the display screen 1105 also has the ability to collect touch signals on the surface or above the surface of the display screen 1105. The touch signal can be input as a control signal to the processor 1101 for processing. At this time, the display screen 1105 can also be used to provide virtual buttons and / or virtual keyboards, also known as soft buttons and / or soft keyboards. In some embodiments, there can be one display screen 1105, which is set on the front panel of the electronic device 1100; in other embodiments, there can be at least two display screens 1105, which are respectively set on different surfaces of the electronic device 1100 or in a folding design; in other embodiments, the display screen 1105 can be a flexible display screen, which is set on the curved surface or folding surface of the electronic device 1100. Even the display screen 1105 can be set to a non-rectangular irregular shape, that is, a special-shaped screen. The display screen 1105 can be made of materials such as LCD (Liquid Crystal Display) and OLED (Organic Light-Emitting Diode).

[0164] The camera assembly 1106 is used to capture images or videos. Optionally, the camera assembly 1106 includes a front camera and a rear camera. Typically, the front camera is arranged on the front panel of the terminal, and the rear camera is arranged on the back of the terminal. In some embodiments, there are at least two rear cameras, which are any one of a main camera, a depth of field camera, a wide-angle camera, and a telephoto camera, so as to realize the fusion of the main camera and the depth of field camera to realize the background blur function, the fusion of the main camera and the wide-angle camera to realize panoramic shooting and VR (Virtual Reality) shooting function or other fusion shooting functions. In some embodiments, the camera assembly 1106 may also include a flash. The flash can be a single-color temperature flash or a dual-color temperature flash. A dual-color temperature flash refers to a combination of a warm light flash and a cold light flash, which can be used for light compensation at different color temperatures.

[0165] The audio circuit 1107 may include a microphone and a speaker. The microphone is used to collect sound waves from the user and the environment, and convert the sound waves into electrical signals to be input into the processor 1101 for processing, or input into the radio frequency circuit 1104 to achieve voice communication. For the purpose of stereo sound collection or noise reduction, there can be multiple microphones, which are respectively arranged in different parts of the electronic device 1100. The microphone can also be an array microphone or an omnidirectional collection microphone. The speaker is used to convert the electrical signal from the processor 1101 or the radio frequency circuit 1104 into sound waves. The speaker can be a traditional thin film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, it can not only convert the electrical signal into sound waves audible to humans, but also convert the electrical signal into sound waves inaudible to humans for purposes such as ranging. In some embodiments, the audio circuit 1107 may also include a headphone jack.

[0166] The positioning component 1108 is used to locate the current geographic location of the electronic device 1100 to implement navigation or LBS (Location Based Service). The positioning component 1108 can be a positioning component based on the GPS (Global Positioning System) or the Beidou system.

[0167] Power supply 1109 is used to power the various components of electronic device 1100. Power supply 1109 can be AC ​​power, DC power, a disposable battery, or a rechargeable battery. When power supply 1109 includes a rechargeable battery, the rechargeable battery can be a wired rechargeable battery or a wireless rechargeable battery. A wired rechargeable battery is a battery that is charged via a wired line, while a wireless rechargeable battery is a battery that is charged via a wireless coil. The rechargeable battery can also be used to support fast charging technology.

[0168] In some embodiments, the electronic device 1100 further includes one or more sensors 1110 , including but not limited to an acceleration sensor 1111 , a gyroscope sensor 1112 , a pressure sensor 1113 , a fingerprint sensor 1114 , an optical sensor 1115 , and a proximity sensor 1116 .

[0169] The accelerometer 1111 can detect the magnitude of acceleration along the three coordinate axes of the coordinate system established by the electronic device 1100. For example, the accelerometer 1111 can be used to detect the components of gravity acceleration along the three coordinate axes. The processor 1101 can control the display screen 1105 to display the user interface in a landscape or portrait view based on the gravity acceleration signal collected by the accelerometer 1111. The accelerometer 1111 can also be used to collect game or user motion data.

[0170] The gyroscope sensor 1112 can detect the orientation and rotation angle of the electronic device 1100. It can work in conjunction with the accelerometer 1111 to capture the user's 3D movements of the electronic device 1100. Based on the data collected by the gyroscope sensor 1112, the processor 1101 can implement the following functions: motion sensing (for example, changing the UI based on the user's tilt operation), image stabilization during shooting, game control, and inertial navigation.

[0171] The pressure sensor 1113 can be set on the side frame of the electronic device 1100 and / or the lower layer of the display screen 1105. When the pressure sensor 1113 is set on the side frame of the electronic device 1100, it can detect the user's grip signal of the electronic device 1100, and the processor 1101 performs left and right hand recognition or shortcut operations based on the grip signal collected by the pressure sensor 1113. When the pressure sensor 1113 is set on the lower layer of the display screen 1105, the processor 1101 controls the operable controls on the UI interface based on the user's pressure operation on the display screen 1105. The operable controls include at least one of a button control, a scroll bar control, an icon control, and a menu control.

[0172] The fingerprint sensor 1114 is used to collect the user's fingerprint, and the processor 1101 identifies the user's identity based on the fingerprint collected by the fingerprint sensor 1114, or the fingerprint sensor 1114 identifies the user's identity based on the collected fingerprint. When the user's identity is identified as a trusted identity, the processor 1101 authorizes the user to perform relevant sensitive operations, which include unlocking the screen, viewing encrypted information, downloading software, making payments, and changing settings. The fingerprint sensor 1114 can be set on the front, back, or side of the electronic device 1100. When a physical button or manufacturer logo is set on the electronic device 1100, the fingerprint sensor 1114 can be integrated with the physical button or manufacturer logo.

[0173] Optical sensor 1115 is used to collect ambient light intensity. In one embodiment, processor 1101 can control the display brightness of display screen 1105 based on the ambient light intensity collected by optical sensor 1115. Specifically, when the ambient light intensity is high, the display brightness of display screen 1105 is increased; when the ambient light intensity is low, the display brightness of display screen 1105 is decreased. In another embodiment, processor 1101 can also dynamically adjust the shooting parameters of camera assembly 1106 based on the ambient light intensity collected by optical sensor 1115.

[0174] Proximity sensor 1116, also known as a distance sensor, is typically located on the front panel of electronic device 1100. Proximity sensor 1116 is used to detect the distance between the user and the front of electronic device 1100. In one embodiment, when proximity sensor 1116 detects that the distance between the user and the front of electronic device 1100 is gradually decreasing, processor 1101 controls display screen 1105 to switch from the screen-on state to the screen-off state. When proximity sensor 1116 detects that the distance between the user and the front of electronic device 1100 is gradually increasing, processor 1101 controls display screen 1105 to switch from the screen-off state to the screen-on state.

[0175] Those skilled in the art will understand that Figure 11 The structure shown in the figure does not constitute a limitation on the electronic device 1100, and the electronic device 1100 may include more or fewer components than shown in the figure, or combine certain components, or adopt a different component arrangement.

[0176] In an embodiment of the present application, a computer-readable storage medium is further provided, such as a memory including instructions, wherein the instructions can be executed by a processor in a terminal to perform the method for performing interactive operations in the above embodiment. The computer-readable storage medium can be non-transitory. For example, the computer-readable storage medium can be a ROM (read-only memory), a RAM (random access memory), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0177] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.) and signals (including but not limited to signals transmitted between user terminals and other devices, etc.) involved in this application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards of relevant countries and regions.

[0178] Those skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware, or by a program to instruct the relevant hardware, and the program may be stored in a computer-readable storage medium, which may be a read-only memory, a disk, or an optical disk, etc.

[0179] The above descriptions are only some possible embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A method for automobile safety early warning, characterized in that: The method is applied to an automobile safety warning system, which includes an on-board terminal, a mobile terminal, and a server. The method includes: The vehicle-mounted terminal obtains the air pressure parameter value of the cylinder of the engine according to a preset period, and determines the working state of the cylinder, wherein the working state is an intake state, an exhaust state or a stop state; The vehicle-mounted terminal determines multiple air pressure ranges corresponding to the working state, and determines the air pressure range to which the air pressure parameter value belongs, wherein the multiple air pressure ranges include a first range, a second range, and a third range, the first range is used to indicate that the cylinder is in a safe working state, the second range is used to indicate that the cylinder is in a normal working state but requires maintenance, and the third range is used to indicate that the cylinder is in a dangerous working state; If the air pressure range determined by the on-board terminal is the second range, the on-board terminal displays a first warning prompt message when the target vehicle is in a starting state, and when the target vehicle is not in a starting state, the on-board terminal sends the first warning prompt message to the mobile terminal so that the mobile terminal displays the first warning prompt message, wherein the first warning prompt message is used to prompt the user to perform maintenance on the engine; if the air pressure range determined by the on-board terminal is the third range, the on-board terminal displays a second warning prompt message when the target vehicle is in a starting state, and voice broadcasts the second warning prompt message, and when the target vehicle is not in a starting state, the on-board terminal sends the second warning prompt message to the mobile terminal so that the mobile terminal displays the second warning prompt message, wherein the second warning prompt message is used to prompt the user to stop driving the target vehicle; When the vehicle-mounted terminal or the mobile terminal detects a user clicking on a maintenance control, the vehicle-mounted terminal or the mobile terminal sends a maintenance notification to the server, wherein the maintenance notification is used to prompt the server to monitor the position of the engine; The server obtains the position of the engine and the position of the target vehicle at a preset period, and determines whether the distance between the position of the engine and the position of the target vehicle is within a specified range, and if the distance between the position of the engine and the position of the target vehicle is not within the specified range, sends a third warning prompt information to the mobile terminal; The mobile terminal displays the third warning prompt information and performs voice broadcast.

2. The method according to claim 1, characterized in that The method further comprises: When the vehicle-mounted terminal or the mobile terminal detects a user clicking operation on the replacement control, the vehicle-mounted terminal or the mobile terminal sends a replacement notification to the server, wherein the replacement notification carries the target model of the engine; The mobile terminal obtains the model of the replaced engine by scanning the graphic code and sends it to the server; The server determines whether the model of the replaced engine is the same as the target model, and if the model of the replaced engine is different from the target model, sends a fourth warning prompt message to the mobile terminal; The mobile terminal displays the fourth warning prompt information and performs voice broadcast.

3. The method according to claim 1, characterized in that The method further comprises: The server determines, based on the start time of use and the upper limit of the use duration of the target device, whether the target device needs to be replaced; and if the target device needs to be replaced, sends a fifth warning prompt message to the in-vehicle terminal and the mobile terminal, wherein the fifth warning prompt message is used to prompt the user to replace the target device; The vehicle-mounted terminal and the mobile terminal display the fifth warning prompt information and perform voice broadcast.

4. The method according to claim 3, characterized in that The method further comprises: The vehicle-mounted terminal sends the start time of use, upper limit of use time and model of the target device to the server; The server stores the start time of use, the upper limit of use time and the model of the target device.

5. An automobile safety warning system, comprising an onboard terminal, a mobile terminal, and a server, wherein: The vehicle-mounted terminal is used to: The air pressure parameter value of the cylinder of the engine is obtained according to a preset period, and the working state of the cylinder is determined, wherein the working state is an intake state, an exhaust state or a stop state; multiple air pressure ranges corresponding to the working state are determined, and the air pressure range to which the air pressure parameter value belongs is determined, wherein the multiple air pressure ranges include a first range, a second range and a third range, the first range is used to indicate that the cylinder is in a safe working state, the second range is used to indicate that the cylinder is in a normal working state but needs maintenance, and the third range is used to indicate that the cylinder is in a dangerous working state; if the determined air pressure range is the second range, the vehicle-mounted terminal displays a first warning prompt message when the target vehicle is in the starting state, and the vehicle-mounted terminal When the target vehicle is not in a started state, the terminal sends the first warning prompt information to the mobile terminal, so that the mobile terminal displays the first warning prompt information, wherein the first warning prompt information is used to prompt the user to repair and maintain the engine; if the determined air pressure range is the third range, then when the target vehicle is in a started state, the vehicle-mounted terminal displays the second warning prompt information and voice broadcasts the second warning prompt information, and when the target vehicle is not in a started state, the vehicle-mounted terminal sends the second warning prompt information to the mobile terminal, so that the mobile terminal displays the second warning prompt information, wherein the second warning prompt information is used to prompt the user to stop driving the target vehicle; The vehicle-mounted terminal is further used for: When detecting a user clicking operation on the maintenance control, sending a maintenance notification to the server, wherein the maintenance notification is used to prompt the server to monitor the position of the engine; The mobile terminal is used to: When detecting a user clicking operation on the maintenance control, sending a maintenance notification to the server, wherein the maintenance notification is used to prompt the server to monitor the position of the engine; The server is used to: acquiring the position of the engine and the position of the target vehicle at a preset period, and determining whether the distance between the position of the engine and the position of the target vehicle is within a specified range, and sending a third warning prompt information to the mobile terminal if the distance between the position of the engine and the position of the target vehicle is not within the specified range; The mobile terminal is further used for: The third warning prompt information is displayed and voice broadcast is performed.

6. The system according to claim 5, characterized in that The vehicle-mounted terminal is further used for: When detecting a user clicking operation on a replacement control, sending a replacement notification to the server, wherein the replacement notification carries the target model of the engine; The mobile terminal is further used for: When a user clicks on a replacement control, a replacement notification is sent to the server, wherein the replacement notification carries the target model of the engine; the model of the replaced engine is obtained by scanning the graphic code and sent to the server; The server is further configured to: determining whether the model of the replaced engine is the same as the target model, and if the model of the replaced engine is different from the target model, sending a fourth warning prompt message to the mobile terminal; The mobile terminal is further used for: The fourth warning prompt information is displayed and voice broadcast is performed.

7. The system according to claim 5, characterized in that The server is further configured to: determining, based on the start time of use and the upper limit of the use duration of the target device, whether the target device needs to be replaced; and if the target device needs to be replaced, sending a fifth warning prompt message to the in-vehicle terminal and the mobile terminal, wherein the fifth warning prompt message is used to prompt the user to replace the target device; The vehicle-mounted terminal is further used for: Displaying the fifth warning prompt information and performing voice broadcast; The mobile terminal is further used for: The fifth warning prompt information is displayed and voice broadcast is performed.

8. The system according to claim 7, characterized in that The vehicle-mounted terminal is further used for: Sending the start time of use, upper limit of use time and model of the target device to the server; The server is further configured to: The start time of use, upper limit of use time and model of the target device are stored.

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