Seat belt unbuckled detection method, apparatus, device, and medium

Abstract

The application provides a seat belt unfastening detection method, device, equipment and medium, and relates to the technical field of automobile safety. The method comprises the following steps: monitoring the voltage across a constant resistance in a detection circuit, wherein the detection circuit comprises a seat belt buckle switch, a seat occupancy sensor and the constant resistance connected in series; determining whether the seat belt is unfastened according to the value of the voltage; wherein when the seat belt is fastened, the seat belt buckle switch is in an open state, and vice versa; when there is an occupant, the resistance value of the seat occupancy sensor is lower than a first resistance value, and vice versa; the first resistance value is lower than a second resistance value. The application can accurately detect whether the seat belt is unfastened, and the wiring harness cost is low.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile safety, and in particular to a seat belt non-wearing detection method, device, equipment and medium. BACKGROUND

[0002] With the continuous increase in the number of automobiles and the continuous development of automobile technology, the safety of automobiles is also increasingly high, and automobiles gradually configure more and more safety functions to ensure the safety of passengers. Among them, the seat belt reminder function is one of the more common safety-related functions.

[0003] However, the detection method in the prior art has a high cost of wiring harness, causing waste of resources. SUMMARY

[0004] The present application provides a seat belt non-wearing detection method, device, equipment and medium to solve the problem of waste of resources in the prior art detection method.

[0005] In a first aspect, the present application provides a seat belt non-wearing detection method, comprising:

[0006] monitoring the voltage across a fixed value resistor in a detection circuit, wherein the detection circuit comprises a seat belt buckle switch, a seat occupancy sensor and the fixed value resistor connected in series;

[0007] determining whether the seat belt is not worn according to the value of the voltage;

[0008] wherein when the seat belt is worn, the seat belt buckle switch is in an open state, and vice versa; when there is a passenger, the resistance value of the seat occupancy sensor is lower than a first resistance value, and vice versa; the first resistance value is less than a second resistance value.

[0009] In a second aspect, the present application provides a seat belt non-wearing detection device, comprising:

[0010] a detection module for monitoring the voltage across a fixed value resistor in a detection circuit, wherein the detection circuit comprises a seat belt buckle switch, a seat occupancy sensor and the fixed value resistor connected in series;

[0011] a determination module for determining whether the seat belt is not worn according to the value of the voltage;

[0012] wherein when the seat belt is worn, the seat belt buckle switch is in an open state, and vice versa; when there is a passenger, the resistance value of the seat occupancy sensor is lower than a first resistance value, and vice versa; the first resistance value is less than a second resistance value.

[0013] In a third aspect, the present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the safety belt unfastening detection method according to any one of the embodiments of the present application when executing the program.

[0014] In a fourth aspect, the present application provides a computer readable storage medium, having a computer program stored thereon, wherein the program is executable on a processor to implement the safety belt unfastening detection method according to any one of the embodiments of the present application.

[0015] In a fifth aspect, the present application provides a computer program product, comprising a computer program, wherein the computer program is executable on a processor to implement the safety belt unfastening detection method according to any one of the embodiments of the present application.

[0016] In a sixth aspect, the present application provides a vehicle, comprising a seat and a safety belt, wherein the vehicle further comprises a safety belt unfastening detection device, and the safety belt unfastening detection device is configured to implement the safety belt unfastening detection method according to any one of the embodiments of the present application.

[0017] The safety belt unfastening detection method, device, equipment and medium provided by the present application can reduce the cost of the wire harness of the series circuit by connecting the safety belt buckle switch, the seat occupancy sensor and the fixed resistor in series to form a detection circuit, monitoring the voltage across the fixed resistor, and determining whether the safety belt is unfastened according to the monitoring result. Therefore, the present application can accurately detect whether the safety belt is unfastened and save resources. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0019] Figure 1 A flow chart of a safety belt unfastening detection method provided by an embodiment of the present application;

[0020] Figure 2 A system block diagram of a safety belt unfastening detection method provided by an embodiment of the present application;

[0021] Figure 3 Another system block diagram of a safety belt unfastening detection method provided by an embodiment of the present application;

[0022] Figure 4 A structural schematic diagram of a safety belt unfastening detection device provided by an embodiment of the present application;

[0023] Figure 5 A structural schematic diagram of an electronic device provided in an embodiment of the present application is shown.

[0024] The specific embodiments of the present application have been shown in the above-described drawings, and will be described in more detail hereinafter. These drawings and the written description are not intended to restrict the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0025] The present application will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the scope of the present application. In addition, it should be noted that, for the sake of description, only the parts related to the present application are shown in the drawings, rather than all the structures.

[0026] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Meanwhile, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. The acquisition, storage, use, processing, etc. of data in the technical solution of the present application all comply with the relevant provisions of national laws and regulations. It should be noted that, in the embodiments of the present application, some industry existing solutions, components, models, etc. may be mentioned, which should be considered as exemplary, and the purpose is only to illustrate the feasibility of the implementation of the technical solution of the present application, but it does not mean that the applicant has or will necessarily use the related content of the solution.

[0027] Figure 1 A flowchart of a safety belt unfastening detection method provided in an embodiment of the present application is shown. The present embodiment can be applied to the detection of whether the members in the vehicle are fastened with safety belts or not. The method can be executed by a safety belt unfastening detection device, which can be realized in the form of software and / or hardware, and is preferably configured in an electronic device, such as a vehicle body controller, etc. As shown in the figure, the method specifically comprises: Figure 1

[0028] S101, monitoring the voltage across the constant value resistor in the detection circuit, wherein the detection circuit comprises a safety belt buckle switch, a seat occupancy sensor and a constant value resistor connected in series.

[0029] S102, determining whether the safety belt is unfastened according to the value of the voltage.

[0030] ​When the seat belt is buckled, the seat belt buckle switch is in an open state, at this time, the resistance value of the seat belt buckle switch in the detection circuit is infinite, and a high resistance state is presented. When the seat belt is not buckled, the seat belt buckle switch is in a closed state, at this time, the seat belt buckle switch is closed and conductive, and a low resistance state is presented.

[0031] The seat occupancy sensor presents a variable resistance, when there is an occupant, the resistance value of the seat occupancy sensor is lower than a first resistance value, and vice versa, the first resistance value is lower than the second resistance value. That is, when there is an occupant, the seat occupancy sensor presents a low resistance state, for example, when the first resistance value is 100Ω, the resistance value of the seat occupancy sensor is below 100Ω; when there is no occupant, the seat occupancy sensor presents a high resistance state, for example, when the second resistance value is 8000Ω, the resistance value of the seat occupancy sensor is above 8000Ω.

[0032] Further, since the seat belt buckle switch, the seat occupancy sensor and the fixed resistance are connected in series in the detection circuit, when the state of the seat belt buckle switch and the seat occupancy sensor changes, the voltage across the fixed resistance will also change accordingly. Therefore, according to the value of the voltage across the fixed resistance in the detection circuit, the current state of the seat belt buckle switch and the seat occupancy sensor can be inferred, so as to determine whether there is an occupant and whether the seat belt is unbuckled.

[0033] The safety belt unbuckling detection method, device, equipment and medium provided by the application, by connecting the seat belt buckle switch, the seat occupancy sensor and the fixed resistance in series to form a detection circuit, monitoring the voltage across the fixed resistance, and determining whether the seat belt is unbuckled according to the monitoring result. At the same time, compared with other parallel detection circuits, the wiring harness cost of the series circuit is also reduced. Therefore, on the basis of accurately detecting whether the seat belt is unbuckled, the resources are also saved.

[0034] Figure 2 A system block diagram of the safety belt unbuckling detection method provided by the embodiment of the application is provided. As shown in the figure, the seat belt buckle switch, the seat occupancy sensor and the fixed resistance are connected in series and serve as a detection circuit, and one end of the detection circuit is connected to the positive electrode of the vehicle power supply and the other end is grounded. One end of the safety belt unbuckling detection device is connected to the positive electrode of the power supply and the other end is grounded, and is also connected to the two ends of the fixed resistance for monitoring the voltage across the fixed resistance. Then, the safety belt unbuckling detection device determines whether there is an occupant and whether the seat belt is unbuckled according to the value of the monitored voltage.

[0035] In one embodiment, determining whether the seat belt is unfastened according to the value of the voltage comprises: determining a first ratio of the first resistance value to the fixed resistance value; calculating a first theoretical voltage value of the fixed resistance value according to the voltage value of the vehicle power supply and the first ratio; and determining that the seat belt is unfastened when the value of the voltage is greater than the first theoretical voltage value.

[0036] When a passenger is present, the seat occupancy sensor is in a low resistance state, and the resistance value is lower than the first resistance value. When the seat belt is unfastened, the seat belt buckle switch is in a closed state. Since the resistance value of the seat belt buckle switch in the detection circuit is close to 0 in the closed state, the seat belt buckle switch and the seat occupancy sensor as a whole are in a low resistance state, i.e., lower than the first resistance value, when a passenger is present and the seat belt is unfastened. At this time, the first theoretical voltage value of the fixed resistance value, i.e., the theoretical voltage division value of the fixed resistance value, can be calculated according to the voltage value of the vehicle power supply, the first resistance value, and the resistance value of the fixed resistance value. Since the actual resistance value of the seat occupancy sensor is lower than the first resistance value, if the actual voltage value of the fixed resistance value monitored by the seat belt unfastening detection device is greater than the first theoretical voltage value, it can be determined that a passenger is present and the seat belt is unfastened. For example, if the vehicle power supply is 12V, the first resistance value is 100Ω, and the fixed resistance value is 1000Ω, when the voltage value across the fixed resistance value is about 11V, it can be determined that a passenger is present and the seat belt is unfastened.

[0037] In another embodiment, determining whether the seat belt is unfastened according to the value of the voltage further comprises: determining a second ratio of the second resistance value to the fixed resistance value; calculating a second theoretical voltage value of the fixed resistance value according to the voltage value of the vehicle power supply and the second ratio; and determining that the seat belt is unfastened when the value of the voltage is less than the second theoretical voltage value.

[0038] When a passenger is present, the seat occupancy sensor is in a low resistance state, and the resistance value is lower than the first resistance value. When the seat belt is unfastened, the seat belt buckle switch is in a closed state. Since the resistance value of the seat belt buckle switch in the detection circuit is close to 0 in the closed state, the seat belt buckle switch and the seat occupancy sensor as a whole are in a low resistance state, i.e., lower than the first resistance value, when a passenger is present and the seat belt is unfastened. At this time, the first theoretical voltage value of the fixed resistance value, i.e., the theoretical voltage division value of the fixed resistance value, can be calculated according to the voltage value of the vehicle power supply, the first resistance value, and the resistance value of the fixed resistance value. Since the actual resistance value of the seat occupancy sensor is lower than the first resistance value, if the actual voltage value of the fixed resistance value monitored by the seat belt unfastening detection device is greater than the first theoretical voltage value, it can be determined that a passenger is present and the seat belt is unfastened. For example, if the vehicle power supply is 12V, the first resistance value is 100Ω, and the fixed resistance value is 1000Ω, when the voltage value across the fixed resistance value is about 11V, it can be determined that a passenger is present and the seat belt is unfastened.

[0039] In yet another embodiment, determining whether the seat belt is buckled or unbuckled according to the value of the voltage further comprises: if the difference between the value of the voltage and 0 is less than a preset threshold, determining that a person is present and the seat belt is buckled.

[0040] When the seat belt is buckled, the seat belt buckle switch is in an off state and has an infinite resistance. When a person is present, the seat occupancy sensor has a low resistance state. Therefore, when a person is present and the seat belt is buckled, the overall resistance of the seat belt buckle switch and the seat occupancy sensor is infinite. At this time, the voltage value across the constant resistance should be close to 0. Therefore, if the difference between the value of the voltage and 0 is less than a preset threshold, it can be determined that a person is present and the seat belt is buckled.

[0041] It should be further noted that since the seat belt is usually not buckled when no one is present, in the example in which the vehicle power supply is 12V, the first resistance is 100Ω, the second resistance is 8000Ω, and the constant resistance is 1000Ω, the voltage value across the constant resistance can be used to determine whether a person is present and the seat belt is buckled, when it is close to 0, whether no one is present and the seat belt is unbuckled, when it is 1V-1.5V, and whether a person is present and the seat belt is unbuckled, when it is about 11V.

[0042] Figure 3 Another system block diagram of the seat belt unbuckling detection method provided by the embodiments of the present application is provided. As shown in the figure, the embodiments include three detection circuits, which are a first detection circuit composed of a seat belt buckle switch S1, a seat occupancy sensor R1, and a constant resistance R0 connected in series, a second detection circuit composed of a seat belt buckle switch S2, a seat occupancy sensor R2, and a constant resistance R0' connected in series, and a third detection circuit composed of a seat belt buckle switch S3, a seat occupancy sensor R3, and a constant resistance R0" connected in series. One end of each of the above detection circuits is connected to the positive electrode of the power supply, and the other end is grounded. The seat belt unbuckling detection device is connected in parallel across the constant resistances in the three detection circuits, and is used to monitor the voltage across R0, R0', and R0". It should be noted that the number of detection circuits is related to the detection requirements, and the embodiments of the present application do not make any limitation thereon. For example, Figure 3 The three seats and their corresponding seat belts in the vehicle can be detected simultaneously.

[0043] In addition, the seat belt unfastening detection device is also connected with a display module and a buzzer module. When the seat belt unfastening detection device determines that a passenger is present and the seat belt is unfastened, the seat belt reminding symbol is positioned at 1, the countdown is started, and the reminding device is driven to remind, the reminding device including the display module and the buzzer module. When the seat belt is fastened, the seat belt reminding symbol is positioned at 0, the countdown is stopped, and the reminding device is driven to stop reminding. Meanwhile, the seat belt unfastening detection device can also send a signal indicating the position of the seat corresponding to the detected presence of a passenger and unfastened seat belt in the vehicle to the display module, and the display module displays the seat corresponding to the position.

[0044] The seat belt unfastening detection device is also connected with an in-vehicle bus, and sends the seat occupancy signal and the seat belt fastening signal to other ECUs (electronic control units) through the in-vehicle bus, and the other ECUs process according to the signals.

[0045] The technical scheme of the embodiment of the present disclosure directly supplies power to the detection circuit from the vehicle power supply, so that the detection circuit can be connected to the in-vehicle power line nearby to effectively reduce the length of the wiring harness. By connecting the seat belt buckle switch, the seat occupancy sensor and the fixed value resistor in series, and detecting the voltage division of the fixed value resistor, the presence of the passenger and whether the seat belt is fastened are effectively detected through the three states of the voltage division of the fixed value resistor, so that the purpose of accurately detecting the unfastened seat belt is achieved.

[0046] Figure 4 A structural schematic diagram of a seat belt unfastening detection device provided by an embodiment of the present application is shown in FIG. 1. Figure 4 As shown in the figure, the seat belt unfastening detection device 40 includes:

[0047] A detection module 410 for monitoring the voltage across a fixed value resistor in a detection circuit, wherein the detection circuit includes a seat belt buckle switch, a seat occupancy sensor and the fixed value resistor connected in series;

[0048] A determination module 420 for determining whether the seat belt is unfastened according to the value of the voltage;

[0049] Wherein, when the seat belt is fastened, the seat belt buckle switch is in an open state, and vice versa; when a passenger is present, the resistance value of the seat occupancy sensor is lower than a first resistance value, and vice versa, the first resistance value is lower than a second resistance value.

[0050] In some embodiments, one end of the detection circuit is connected to a vehicle power supply, and the other end is grounded.

[0051] In some embodiments, the determination module 420 includes a first determination unit, which is specifically configured to:

[0052] determining a first ratio of the first resistance value to the fixed resistance value;

[0053] calculating a first theoretical voltage value of the fixed resistance value according to the voltage value of the vehicle power supply and the first ratio;

[0054] if the voltage value is greater than the first theoretical voltage value, determining that a person is present and the safety belt is not buckled.

[0055] In some embodiments, the determining module 420 comprises a second determining unit, which is specifically configured to:

[0056] determining a second ratio of the second resistance value to the fixed resistance value;

[0057] calculating a second theoretical voltage value of the fixed resistance value according to the voltage value of the vehicle power supply and the second ratio;

[0058] if the voltage value is less than the second theoretical voltage value, determining that no person is present and the safety belt is not buckled.

[0059] In some embodiments, the determining module 420 comprises a third determining unit, which is specifically configured to:

[0060] if the difference between the voltage value and 0 is less than a preset threshold value, determining that a person is present and the safety belt is buckled.

[0061] In some embodiments, the device further comprises an unbuckled reminding module, which is specifically configured to:

[0062] when it is determined that a person is present and the safety belt is not buckled, setting a safety belt reminding flag to 1, starting a countdown, and driving a reminding device to remind, wherein the reminding device comprises a display module and a buzzer module;

[0063] in response to the safety belt reminding flag being 0, stopping the countdown, and driving the reminding device to stop reminding.

[0064] The safety belt unbuckled detection device provided by the embodiments of the present application can be used to execute the technical solutions of the safety belt unbuckled detection method in the above embodiments, and has similar implementation principles and technical effects, which will not be described here.

[0065] It should be noted that the division of each module of the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated when actually implemented. And these modules can all be implemented in the form of software called by a processing element; all can be implemented in the form of hardware; some modules can be implemented in the form of software called by a processing element, and some modules can be implemented in the form of hardware. For example, the determination module 420 can be a separately established processing element, or can be integrated in a chip of the above apparatus, in addition, it can also be stored in the form of program code in the memory of the above apparatus, and the function of the above determination module 420 is called and executed by a processing element of the above apparatus. The implementation of other modules is similar. In addition, all or part of these modules can be integrated together or independently implemented. The processing element here can be an integrated circuit with signal processing capability. In the implementation process, each step of the above method or each module can be completed by integrated logic circuit of hardware in the processing element or instruction in the form of software.

[0066] Figure 5 The structure schematic diagram of the electronic device provided by the embodiment of the application is shown in the figure. Figure 5 As shown in the figure, the electronic device can include a transceiver 121, a processor 122, and a memory 123.

[0067] The processor 122 executes the computer execution instructions stored in the memory, so that the processor 122 executes the scheme in the above embodiment. The processor 122 can be a general-purpose processor, including a central processing unit CPU, a network processor NP, etc.; it can also be a digital signal processor DSP, an application-specific integrated circuit ASIC, a field programmable gate array FPGA or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component.

[0068] The memory 123 is connected with the processor 122 through a system bus and completes mutual communication, and the memory 123 is used for storing computer program instructions.

[0069] The transceiver 121 can be used to obtain a to-be-run task and configuration information of the to-be-run task.

[0070] The system bus can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The system bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or only one type of bus. The transceiver is used to realize the communication between the database access device and other computers (such as clients, read-write libraries and read-only libraries). The memory can include random access memory (RAM) and can also include non-volatile memory.

[0071] The electronic device provided by the embodiment of the application can be the terminal device of the above embodiment.

[0072] The embodiment of the application further provides a computer readable storage medium, which stores computer instructions, and when the computer instructions are run on a computer, the computer executes the technical solution of the safety belt unfastening detection method of the above embodiment.

[0073] The embodiment of the application further provides a computer program product, which includes a computer program stored in a computer readable storage medium, at least one processor can read the computer program from the computer readable storage medium, and when the at least one processor executes the computer program, the technical solution of the safety belt unfastening detection method in the above embodiment can be implemented.

[0074] In the implementation process of the computer program product, the computer program code for executing the operation of the application can be written in one or more program design languages or combinations thereof, the program design languages include object-oriented program design languages such as Java, Smalltalk, C++, and also include conventional procedural program design languages such as "C" language or similar program design languages. The program code can be completely executed on a user computer, partially executed on a user computer, executed as a separate software package, partially executed on a user computer and partially executed on a remote computer, or completely executed on a remote computer or server. In the case involving a remote computer, the remote computer can be connected to the user computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (for example, connected through the Internet by using an Internet service provider).

[0075] The application further provides a vehicle comprising a seat and a safety belt, and the vehicle further comprises a safety belt unfastening detection device, wherein the safety belt unfastening detection device is configured to implement the safety belt unfastening detection method according to any one of the embodiments of the application.

[0076] It should be noted that the above only describes the preferred embodiments of the application and the principles of the technology applied. Those skilled in the art will understand that the application is not limited to the specific embodiments herein, and those skilled in the art can make various obvious changes, readjustments and substitutions without departing from the scope of the application. Therefore, although the application has been described in detail through the above embodiments, the application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the application, and the scope of the application is determined by the scope of the appended claims.

Claims

1. A seat belt non-use detection method characterized by comprising: The method comprises the following steps: monitoring the voltage across a constant resistance in a detection circuit, wherein the detection circuit comprises a seat belt buckle switch, a seat occupancy sensor and the constant resistance connected in series; determining whether the seat belt is unfastened according to the value of the voltage; wherein the seat belt buckle switch is in an open state when the seat belt is fastened, and in a closed state when the seat belt is unfastened; the resistance value of the seat occupancy sensor is lower than a first resistance value when there is an occupant, and higher than a second resistance value when there is no occupant, the first resistance value being lower than the second resistance value; one end of the detection circuit is connected to a vehicle power supply, and the other end is grounded; the step of determining whether the seat belt is unfastened according to the value of the voltage comprises: determining a first ratio of the first resistance value to the constant resistance; calculating a first theoretical voltage value of the constant resistance according to the voltage value of the vehicle power supply and the first ratio; if the value of the voltage is greater than the first theoretical voltage value, it is determined that there is an occupant and the seat belt is unfastened.

2. The method of claim 1, wherein, the step of determining whether the seat belt is unfastened according to the value of the voltage comprises: determining a second ratio of the second resistance value to the constant resistance; calculating a second theoretical voltage value of the constant resistance according to the voltage value of the vehicle power supply and the second ratio; if the value of the voltage is less than the second theoretical voltage value, it is determined that there is no occupant and the seat belt is unfastened.

3. The method of claim 1, wherein, the step of determining whether the seat belt is unfastened according to the value of the voltage comprises: if the difference between the value of the voltage and 0 is less than a preset threshold, it is determined that there is an occupant and the seat belt is fastened.

4. The method of claim 1, wherein, The method further comprises the following steps: when it is determined that there is an occupant and the seat belt is unfastened, setting a seat belt reminder sign to 1, starting a countdown, and driving a reminder device to remind, the reminder device comprising a display module and a buzzer module; in response to the seat belt reminder sign being 0, stopping the countdown and driving the reminder device to stop reminding.

5. A seat belt non-use detection device characterized by comprising: The method comprises the following steps: a detection module for monitoring the voltage across a constant resistance in a detection circuit, wherein the detection circuit comprises a seat belt buckle switch, a seat occupancy sensor and the constant resistance connected in series; a determination module for determining whether the seat belt is unfastened according to the value of the voltage; wherein the seat belt buckle switch is in an open state when the seat belt is fastened, and in a closed state when the seat belt is unfastened; the resistance value of the seat occupancy sensor is lower than a first resistance value when there is an occupant, and higher than a second resistance value when there is no occupant, the first resistance value being lower than the second resistance value; one end of the detection circuit is connected to a vehicle power supply, and the other end is grounded; the determination module comprises a first determination unit, which is specifically configured to: determine a first ratio of the first resistance value to the constant resistance; calculate a first theoretical voltage value of the constant resistance according to the voltage value of the vehicle power supply and the first ratio; if the value of the voltage is greater than the first theoretical voltage value, it is determined that there is an occupant and the seat belt is unfastened.

6. The apparatus of claim 5, wherein, the determination module comprises a second determination unit, which is specifically configured to: determine a second ratio of the second resistance value to the constant resistance; calculate a second theoretical voltage value of the constant resistance according to the voltage value of the vehicle power supply and the second ratio; If the value of the voltage is less than the second theoretical voltage value, it is determined that no one is on board and the safety belt is not buckled.

7. The apparatus of claim 5, wherein, The determining module includes a third determining unit, which is specifically used for: If the difference between the value of the voltage and 0 is less than a preset threshold, it is determined that someone is on board and the safety belt is buckled.

8. The apparatus of claim 5, wherein, Further included is an unbuckled reminding module, which is specifically used for: When it is determined that someone is on board and the safety belt is not buckled, the safety belt reminding sign is set to 1, the countdown is started, and the reminding device is driven to remind, the reminding device including a display module and a buzzer module; In response to the safety belt reminding sign being 0, the countdown is stopped, and the reminding device is driven to stop reminding.

9. An electronic device, comprising: It includes: a processor, and a memory connected with the processor in communication; the memory stores computer execution instructions; the processor executes the computer execution instructions stored in the memory to realize the safety belt unbuckled detection method according to any one of claims 1-4.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer execution instructions, and the computer execution instructions are executed by the processor to realize the safety belt unbuckled detection method according to any one of claims 1-4.

11. A computer program product, characterised in that, It includes a computer program, which is executed by the processor to realize the safety belt unbuckled detection method according to any one of claims 1-4.

12. A vehicle comprising a seat and a safety belt, characterized in that The vehicle further includes a safety belt unbuckled detection device, wherein the safety belt unbuckled detection device is used to realize the safety belt unbuckled detection method according to any one of claims 1-4.

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