A vehicle safety control method, system, terminal device and medium

Abstract

This invention belongs to the field of automotive safety control, and provides a vehicle safety control method, system, terminal device, and medium. The method includes: collecting vehicle status information; determining multiple activated protection functions based on the status information; determining the status of the output channel in the vehicle control system corresponding to each protection function according to a pre-configured parameter table, and using the status as a protection word to obtain multiple protection words; combining the multiple protection words to obtain a combined protection word; parsing the combined protection word to obtain the control signal of the output channel in the vehicle control system; and performing safety control on the vehicle based on the control signal. This invention enables the simultaneous activation of multiple protection functions and control of the control signals of multiple output channels, improving the accuracy of vehicle safety control.

Description

Technical Field

[0001] This invention belongs to the field of automotive safety control, specifically relating to a vehicle safety control method, system, terminal equipment, and medium. Background Technology

[0002] The vehicle safety platform (hereinafter referred to as the safety platform) is used to provide safety protection for the vehicle control system. Its operation involves acquiring input, determining whether to activate protection functions based on pre-set conditions, and then executing outputs according to the determination result. Previously, the safety platform only needed to handle a few functions and control one output channel. With the continuous development of transportation, the functions that the safety platform needs to control have increased from a few to more than a dozen. These functions require controlling multiple different outputs, and traditional vehicle safety control methods are insufficient to meet the accuracy requirements of these complex functions.

[0003] To address the aforementioned issues, a common vehicle safety control method involves dividing all functions into two groups, each controlling different outputs. The steps are as follows: The functions are divided into group A and group B. Group A is designated to control certain outputs, while the remaining outputs are controlled by group B. If a function in group A requires its output to be disconnected, all outputs in group A are disconnected; similarly, if a function in group B requires its output to be disconnected, all outputs in group B are disconnected. This results in the inability to activate multiple protection functions simultaneously, compromising the accuracy of vehicle safety control.

[0004] In summary, traditional vehicle safety control methods have low accuracy. Summary of the Invention

[0005] The problem addressed by this invention is to provide a vehicle safety control method, system, terminal device, and medium to improve the accuracy of vehicle safety control.

[0006] In a first aspect, the present invention provides a vehicle safety control method, the method comprising the following steps:

[0007] Collect vehicle status information;

[0008] Based on the status information, determine the multiple protection functions activated by the vehicle;

[0009] Based on the pre-configured parameter table, the state of the output channel in the vehicle control system corresponding to each protection function is determined, and the state is used as a protection word to obtain multiple protection words; the parameter table is used to indicate the state of the output channel in the vehicle control system corresponding to the protection function, which is either disconnected or connected, and multiple protection words correspond one-to-one with multiple protection functions;

[0010] Multiple protection words are combined to obtain a comprehensive protection word; the comprehensive protection word is used to indicate the status of the output channel in the vehicle control system corresponding to the multiple protection functions.

[0011] The integrated protection character is parsed to obtain the control signals of the output channel in the vehicle control system;

[0012] The vehicle is controlled safely based on control signals.

[0013] Optionally, the status information includes speed, acceleration, angular velocity, and environmental information around the vehicle.

[0014] Optionally, multiple protected characters can be combined to obtain a combined protected character, including:

[0015] Multiple protection words are converted into binary to obtain multiple binary numbers; each binary number includes multiple bits, and each bit corresponds one-to-one with multiple output channels in the vehicle control system. Bits in the output channel state of being disconnected are recorded as 0, and bits in the output channel state of being connected are recorded as 1.

[0016] Perform a bitwise OR operation on multiple binary numbers to obtain a comprehensive protection word.

[0017] Optionally, the integrated protection word is parsed to obtain the control signals of the output channel in the vehicle control system, including:

[0018] For each bit in the integrated protection word, a control signal for the corresponding output channel is generated based on the binary value of the bit. When the binary value is 1, the control signal connects the output channel corresponding to the bit; when the binary value is 0, the control signal disconnects the output channel corresponding to the bit.

[0019] Optionally, the number of bits in the binary number corresponding to different protection words can be the same.

[0020] Optionally, the control signal can be an electrical signal.

[0021] Optional, the vehicle is a rail train.

[0022] Secondly, the present invention provides a vehicle safety control system, comprising:

[0023] The information acquisition module is used to collect vehicle status information;

[0024] The protection function determination module is used to determine the multiple protection functions activated by the vehicle based on the status information.

[0025] The protection word construction module is used to determine the state of the output channel in the vehicle control system corresponding to each protection function according to the pre-configured parameter table, and use the state as the protection word to obtain multiple protection words; the parameter table is used to indicate the state of the output channel in the vehicle control system corresponding to the protection function, which is either disconnected or connected, and multiple protection words correspond one-to-one with multiple protection functions;

[0026] The protection word integration module is used to integrate multiple protection words to obtain an integrated protection word; the integrated protection word is used to indicate the status of the output channels in the vehicle control system corresponding to multiple protection functions;

[0027] The signal generation module is used to parse the integrated protection word and obtain the control signals of the output channel in the vehicle control system;

[0028] The safety control module is used to perform safety control on the vehicle based on control signals.

[0029] Thirdly, the present invention provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the above-described method.

[0030] Fourthly, the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method.

[0031] The beneficial effects of this invention are:

[0032] The vehicle safety control method provided by this invention determines the activated protection functions of the vehicle based on status information, then determines the state of the output channel in the vehicle control system corresponding to each protection function according to a parameter table, and uses the state as a protection word. Multiple protection words are then combined to obtain a comprehensive protection word. Finally, the comprehensive protection word is parsed to obtain the control signals of the output channels in the vehicle control system, and the control signals are used to perform vehicle safety control. On the one hand, since there is a one-to-one correspondence between protection words and protection functions, and the protection word describes the state of the output channel in the vehicle control system, precise control of multiple output channels by a single protection function can be achieved based on the protection word, which is beneficial to improving the accuracy of vehicle safety control. On the other hand, by combining multiple protection words to obtain the comprehensive protection word, multiple protection functions can be activated simultaneously and control the control signals of multiple output channels, which is beneficial to improving the accuracy of vehicle safety control. Attached Figure Description

[0033] Figure 1 This is a flowchart of a vehicle safety control method in one embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the structure of a vehicle safety control system in one embodiment of this application;

[0035] Figure 3 This is a schematic diagram of the structure of a terminal device in one embodiment of this application. Detailed Implementation

[0036] To address the low accuracy of traditional vehicle safety control methods, this invention discloses a vehicle safety control method, system, terminal device, and medium. The method determines the activated protection functions of the vehicle based on status information, then determines the state of the output channel in the vehicle control system corresponding to each protection function based on a parameter table, and uses this state as a protection word. Multiple protection words are then combined to obtain a comprehensive protection word. Finally, the comprehensive protection word is parsed to obtain the control signals of the output channels in the vehicle control system, and these control signals are used for vehicle safety control. On the one hand, since there is a one-to-one correspondence between protection words and protection functions, and the protection word describes the state of the output channel in the vehicle control system, precise control of multiple output channels by a single protection function can be achieved based on the protection word, which is beneficial to improving the accuracy of vehicle safety control. On the other hand, by combining multiple protection words to obtain the comprehensive protection word, multiple protection functions can be activated simultaneously and control the control signals of multiple output channels, which is beneficial to improving the accuracy of vehicle safety control.

[0037] The vehicle safety control method provided by this invention will be described below.

[0038] like Figure 1 As shown, the vehicle safety control method includes:

[0039] Step 11: Collect vehicle status information.

[0040] In one embodiment of the present invention, the vehicle is a rail train. The aforementioned status information includes speed, acceleration, angular velocity, and environmental information surrounding the vehicle. The speed, acceleration, and angular velocity can be collected by sensors pre-installed on the vehicle (e.g., speed sensors), and the environmental information can be collected by cameras pre-installed on the vehicle, including the track, obstacles, and milestones.

[0041] In another embodiment of the invention, the vehicle may also be a small car, a large bus, a truck, etc. The difference lies in that the environmental information collected by these types of vehicles includes lane information, obstacles, road signs, and traffic light indicators.

[0042] Step 12: Based on the status information, determine the multiple protection functions enabled by the vehicle.

[0043] In embodiments of the present invention, the aforementioned multiple protection functions may be an emergency braking protection function, a traction cut-off protection function, and an adaptive cruise control protection function. Specifically, when the vehicle speed exceeds a preset speed threshold (e.g., 100 km / h) and there is an obstacle 150 meters ahead, the emergency braking protection function needs to be activated to control the vehicle's emergency braking and avoid a collision. When the vehicle is traveling in rainy or icy conditions, the vehicle may skid, requiring the traction cut-off protection function to help maintain stability by cutting off some traction. When the vehicle is in automatic cruise control mode, the adaptive cruise control protection function needs to be activated. In this case, the speed of the vehicle ahead will be monitored, and the vehicle will automatically decelerate or accelerate as necessary to maintain a safe distance.

[0044] Step 13: Based on the pre-configured parameter table, determine the status of the output channel in the vehicle control system corresponding to each protection function, and use the status as the protection word to obtain multiple protection words.

[0045] The parameter table is used to indicate the status of the output channel in the vehicle control system corresponding to the protection function. The status is either disconnected or connected, and multiple protection words correspond one-to-one with multiple protection functions.

[0046] For example, in one embodiment of the present invention, the vehicle control system has four output channels, each controlling the operation of different functional components of the vehicle. For instance, output channel 1 controls the steering of the vehicle wheels, output channel 2 controls the rotational speed of the vehicle wheels, output channel 3 controls the brake pads, and output channel 4 controls the engine ignition. Taking the emergency braking protection function as an example, after activating the emergency braking protection function, the vehicle needs to be brought to a standstill within a short time. This requires controlling the wheel rotational speed to decrease and controlling the brake pads to restrain the wheel rotation. Correspondingly, output channel 2 is connected to control the wheel rotational speed, and output channel 3 is connected to control the brake pads to restrain the wheel rotation. In this scenario, the steering of the vehicle wheels and the engine ignition do not need to be controlled, and output channels 1 and 4 are disconnected. In another scenario, the adaptive cruise control protection function needs to be activated to increase the vehicle speed and avoid the vehicle in front. This requires controlling the steering of the vehicle wheels and increasing the wheel rotational speed. Correspondingly, output channels 1 and 2 are connected, while output channels 3 and 4 are disconnected.

[0047] Step 14: Combine multiple protected characters to obtain a combined protected character.

[0048] In an embodiment of the present invention, the integrated protection word is used to indicate the status of the output channel in the vehicle control system corresponding to the plurality of protection functions.

[0049] Specifically, step 14 is shown in steps 14.1 to 14.2.

[0050] Step 14.1: Perform binary conversion on multiple protection words to obtain multiple binary numbers.

[0051] The binary number consists of multiple bits, which correspond one-to-one with multiple output channels in the vehicle control system. Bits that are disconnected are recorded as 0, and bits that are connected are recorded as 1.

[0052] For example, in the previous example, the emergency braking protection function requires output channels 2 and 3 to be connected and output channels 1 and 4 to be closed. Therefore, the binary number obtained after binary conversion for the protection word corresponding to the emergency braking protection function is 0110. Similarly, the binary number for the adaptive cruise control protection function is 1100. Since the number of output ports of the vehicle control system is fixed, the number of bits in the binary number corresponding to different protection words is the same.

[0053] Step 14.2: Perform a bitwise OR operation on multiple binary numbers to obtain the comprehensive protection word.

[0054] For example, performing a bitwise OR operation on the binary number 0110 corresponding to the emergency braking protection function and the binary number 1100 corresponding to the adaptive cruise protection function yields a result of 1110. The comprehensive protection word is then 1110, which in practice means that output channels 1, 2, and 3 are connected, while output channel 4 is closed.

[0055] Step 15: Analyze the integrated protection word to obtain the control signal of the output channel in the vehicle control system.

[0056] For example, by mapping the integrated protection word (binary), it can be converted from a digital signal to an electrical signal. This can be achieved using common methods for converting between digital and electrical signals, which will not be elaborated here.

[0057] Step 16: Perform safety control on the vehicle according to the control signals.

[0058] For example, after executing step 15, the resulting control signal is that output channels 1, 2, and 3 are connected, and output channel 4 is closed. After these control signals are transmitted to different vehicle devices, emergency braking protection function and adaptive cruise protection function can be realized simultaneously to ensure vehicle safety.

[0059] In summary, the vehicle safety control method provided by this invention determines the activated protection functions of the vehicle based on status information, then determines the state of the output channel in the vehicle control system corresponding to each protection function based on a parameter table, and uses the state as a protection word. Multiple protection words are then combined to obtain a comprehensive protection word. Finally, the comprehensive protection word is parsed to obtain the control signals of the output channels in the vehicle control system, and the control signals are used to perform vehicle safety control. On the one hand, since there is a one-to-one correspondence between protection words and protection functions, and the protection word describes the state of the output channel in the vehicle control system, precise control of multiple output channels by a single protection function can be achieved based on the protection word, which is beneficial to improving the accuracy of vehicle safety control. On the other hand, by combining multiple protection words to obtain a comprehensive protection word, multiple protection functions can be activated simultaneously and control the control signals of multiple output channels, which is beneficial to improving the accuracy of vehicle safety control.

[0060] The vehicle safety control system provided by this invention will be described below.

[0061] like Figure 2 As shown, the vehicle safety control system 200 includes:

[0062] Information acquisition module 201 is used to collect vehicle status information;

[0063] The protection function determination module 202 is used to determine multiple protection functions enabled by the vehicle based on the status information.

[0064] The protection word construction module 203 is used to determine the state of the output channel in the vehicle control system corresponding to each protection function according to the pre-configured parameter table, and use the state as the protection word to obtain multiple protection words; the parameter table is used to indicate the state of the output channel in the vehicle control system corresponding to the protection function, which is either disconnected or connected, and multiple protection words correspond one-to-one with multiple protection functions;

[0065] The protection word integration module 204 is used to integrate multiple protection words to obtain an integrated protection word; the integrated protection word is used to indicate the status of the output channels in the vehicle control system corresponding to multiple protection functions.

[0066] The signal generation module 205 is used to parse the integrated protection word and obtain the control signal of the output channel in the vehicle control system;

[0067] The safety control module 206 is used to perform safety control on the vehicle based on control signals.

[0068] It should be noted that the information interaction and execution process between the above-mentioned devices / units are different from the method of this application.

[0069] The embodiments are based on the same concept, and their specific functions and technical effects can be found in the method embodiment section, which will not be repeated here. Those skilled in the art will understand that, for ease of description and brevity, the above-described division of functional units and modules is used as an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0070] like Figure 3 As shown, embodiments of the present invention provide a terminal device, such as... Figure 3 As shown, the terminal device D10 of this embodiment includes: at least one processor D100 ( Figure 3 The diagram shows only one processor, a memory D101, and a computer program D102 stored in the memory D101 and executable on the at least one processor D100, wherein the processor D100 executes the computer program D102 to implement the steps in any of the above method embodiments.

[0071] Specifically, when the processor D100 executes the computer program D102, it determines the activated protection functions of the vehicle based on the status information, then determines the status of the output channel in the vehicle control system corresponding to each protection function based on the parameter table, and uses the status as a protection word. Multiple protection words are then combined to obtain a comprehensive protection word. Finally, the comprehensive protection word is parsed to obtain the control signals of the output channels in the vehicle control system, and the control signals are used to perform safety control of the vehicle. On the one hand, since there is a one-to-one correspondence between protection words and protection functions, and the protection word describes the status of the output channel in the vehicle control system, precise control of multiple output channels by a single protection function can be achieved based on the protection word, which is beneficial to improving the accuracy of vehicle safety control. On the other hand, by combining multiple protection words to obtain a comprehensive protection word, multiple protection functions can be activated simultaneously, which is beneficial to improving the accuracy of vehicle safety control.

[0072] The processor D100 can be a central processing unit (CPU), or it can be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0073] In some embodiments, the memory D101 may be an internal storage unit of the terminal device D10, such as a hard disk or memory of the terminal device D10. In other embodiments, the memory D101 may be an external storage device of the terminal device D10, such as a plug-in hard disk, smart media card (SMC), secure digital card (SD), flash card, etc., equipped on the terminal device D10. Furthermore, the memory D101 may include both internal and external storage units of the terminal device D10. The memory D101 is used to store the operating system, applications, bootloader, data, and other programs, such as the program code of the computer program. The memory D101 can also be used to temporarily store data that has been output or will be output.

[0074] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps described in the various method embodiments above.

[0075] This application provides a computer program product that, when run on a terminal device, enables the terminal device to implement the steps described in the various method embodiments above.

[0076] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0077] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A vehicle safety control method, characterized in that, include: Collect vehicle status information; Based on the status information, determine the multiple protection functions enabled by the vehicle; According to the pre-configured parameter table, the state of the output channel in the vehicle control system corresponding to each protection function is determined, and the state is used as a protection word to obtain multiple protection words; the parameter table is used to indicate the state of the output channel in the vehicle control system corresponding to the protection function, the state being disconnected or connected, and the multiple protection words and the multiple protection functions correspond one-to-one; The multiple protected characters are combined to obtain a combined protected character; The integrated protection word is used to indicate the status of the output channel in the vehicle control system corresponding to the multiple protection functions; The process of combining the multiple protection words to obtain a combined protection word includes: The multiple protection words are converted into binary to obtain multiple binary numbers; wherein, each binary number includes multiple bits, and each bit corresponds one-to-one with multiple output channels in the vehicle control system, with the bit of the output channel being disconnected being recorded as 0 and the bit of the output channel being connected being recorded as 1. Perform a bitwise OR operation on the plurality of binary numbers to obtain the comprehensive protection word; The integrated protection word is parsed to obtain the control signal of the output channel in the vehicle control system; The vehicle is controlled for safety based on the control signal.

2. The vehicle safety control method according to claim 1, characterized in that, The status information includes speed, acceleration, angular velocity, and environmental information surrounding the vehicle.

3. The vehicle safety control method according to claim 1, characterized in that, The step of parsing the integrated protection word to obtain the control signal of the output channel in the vehicle control system includes: For each bit in the integrated protection word, a control signal for the output channel corresponding to the bit is generated based on the binary value of the bit; wherein, when the binary value is 1, the control signal controls the output channel corresponding to the bit to be connected, and when the binary value is 0, the control signal controls the output channel corresponding to the bit to be disconnected.

4. The vehicle safety control method according to claim 1, characterized in that, Different protection words correspond to the same number of bits in their binary representations.

5. The vehicle safety control method according to claim 1, characterized in that, The control signal is an electrical signal.

6. The vehicle safety control method according to claim 1, characterized in that, The vehicle in question is a railcar.

7. A vehicle safety control system, characterized in that, include: The information acquisition module is used to collect vehicle status information; The protection function determination module is used to determine multiple protection functions enabled by the vehicle based on the status information. The protection word construction module is used to determine the state of the output channel in the vehicle control system corresponding to each protection function according to a pre-configured parameter table, and use the state as a protection word to obtain multiple protection words; the parameter table is used to indicate the state of the output channel in the vehicle control system corresponding to the protection function, the state being disconnected or connected, and the multiple protection words and the multiple protection functions correspond one-to-one; The protection character integration module is used to integrate the multiple protection characters to obtain an integrated protection character; The integrated protection word is used to indicate the status of the output channel in the vehicle control system corresponding to the multiple protection functions; The process of combining the multiple protection words to obtain a combined protection word includes: The multiple protection words are converted into binary to obtain multiple binary numbers; wherein, each binary number includes multiple bits, and each bit corresponds one-to-one with multiple output channels in the vehicle control system, with the bit of the output channel being disconnected being recorded as 0 and the bit of the output channel being connected being recorded as 1. Perform a bitwise OR operation on the plurality of binary numbers to obtain the comprehensive protection word; The signal generation module is used to parse the integrated protection word and obtain the control signal of the output channel in the vehicle control system; A safety control module is used to perform safety control on the vehicle based on the control signal.

8. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method as described in any one of claims 1 to 6.

9. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1 to 6.

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