Electronic fence-based vehicle safe driving control system and method

Abstract

The application discloses an electronic fence-based vehicle safe driving control system and method, and relates to the technical field of vehicle safe driving control, which comprises the following steps: setting at least one electronic fence in a cloud vehicle networking platform, wherein each electronic fence comprises electronic fence basic information and safe driving mode key parameter values; binding each electronic fence with a vehicle in the cloud vehicle networking platform, and acquiring real-time positioning information of the vehicle through a vehicle-mounted remote monitoring terminal; judging whether the vehicle is in the range of the electronic fence according to the positioning information in the cloud vehicle networking platform, and sending a safe driving mode control instruction and safe driving mode key parameter values to the vehicle-mounted remote monitoring terminal, so as to realize the switching of the safe driving mode of the vehicle. According to the actual operation route of the vehicle, the switching of the safe driving mode is flexibly controlled, the operation safety of the vehicle is improved, the risk of traffic accidents is reduced, and the evidence collection ability after an accident is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle safety driving control, in particular to a vehicle safety driving control system and method based on electronic fence. BACKGROUND

[0002] The statements in this section merely provide background information related to the present application and do not necessarily constitute the prior art.

[0003] With the continuous development of electric vehicle technology, pure electric buses are becoming more and more common in cities and have become the first choice for green travel. Pure electric buses have been widely used in urban public transportation. The driving mode of pure electric buses is generally that the vehicle controller collects the operation intention of the driver through gear signal, accelerator pedal signal, brake pedal signal, hand brake signal and other sensor data, converts the related signals into demand torque, and transmits it to the vehicle power system through the vehicle CAN bus. The power system outputs driving force according to the demand torque of the vehicle controller and other limiting conditions to realize the driving control of the vehicle. The vehicle controller can limit the maximum speed of the driving motor and the acceleration of the vehicle by controlling the value of the demand torque.

[0004] During the operation of the pure electric bus, there are different safety risks when running in different areas, such as schools, hospitals, and construction sites, etc. Special areas have special requirements for the driving speed of the bus and the operation specification of the driver. However, it is found in research that based on the existing driving control method of pure electric buses, the driving mode cannot be automatically adjusted according to the area where the vehicle is located, so that the vehicle still drives in the conventional mode when it drives into the special area, increasing the risk of traffic accidents. In addition, the existing technology lacks the recording of the time when the vehicle enters and exits the specific area, and the change of the operation parameters in the area, so that the existing technology cannot trace the relevant information of the vehicle in the specific area after the accident, bringing difficulties to the evidence collection after the accident. Therefore, how to flexibly control the automatic switching of the safety driving mode of the vehicle has become a technical problem that technicians in the field need to solve. SUMMARY

[0005] In order to solve the above problems, the present application provides a vehicle safety driving control system and method based on electronic fence, which can flexibly control the automatic control of the safety driving mode of the vehicle according to the actual operation route of the vehicle (pure electric bus), improve the safety of vehicle operation, reduce the risk of traffic accidents, and improve the evidence collection ability after the accident.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0007] In the first aspect, the present application provides a vehicle safety driving control system based on electronic fence, comprising:

[0008] The interactive cloud vehicle networking platform and the vehicle-mounted remote monitoring terminal; the vehicle-mounted remote monitoring terminal is connected with a vehicle controller, a combination instrument, a low-speed driving prompter and a vehicle-mounted remote monitoring terminal control unit through a vehicle CAN network respectively;

[0009] At least one electronic fence is arranged in the cloud vehicle networking platform, wherein each electronic fence comprises electronic fence basic information and safety driving mode key parameter values;

[0010] Each electronic fence is bound with the vehicle in the cloud vehicle networking platform, and real-time positioning information of the vehicle is obtained through the vehicle-mounted remote monitoring terminal;

[0011] In the cloud vehicle networking platform, whether the vehicle is in the range of the electronic fence is judged according to the positioning information, and safety driving mode control instructions and safety driving mode key parameter values are sent to the vehicle-mounted remote monitoring terminal, so as to realize the switching of the safety driving mode of the vehicle.

[0012] Further technical solutions, the electronic fence basic information includes: electronic fence map range information and electronic fence effective time period; the safety driving mode key parameter values include: the highest speed limit value of the drive motor, the acceleration limit value, the lowest speed limit value of the low-speed driving prompter shutdown, and the data upload frequency value of the vehicle-mounted remote terminal.

[0013] Further technical solutions, when the vehicle-mounted remote monitoring terminal receives the safety driving mode control instructions and safety driving mode key parameter values sent by the cloud vehicle networking platform, the safety driving mode control instructions and safety driving mode key parameter values sent by the cloud vehicle networking platform are sent to the vehicle controller, the combination instrument, the low-speed driving prompter and the vehicle-mounted remote monitoring terminal control unit through the vehicle CAN network.

[0014] Further technical solutions, after the vehicle controller receives the safety driving mode control instructions and safety driving mode key parameter values, the highest speed limit value of the drive motor and the acceleration limit value are changed.

[0015] Further technical solutions, after the combination instrument receives the safety driving mode control instructions and safety driving mode key parameter values, sound and light reminders are performed.

[0016] Further technical solutions, after the low-speed driving prompter receives the safety driving mode control instructions and safety driving mode key parameter values, the lowest speed limit value of the shutdown prompt sound is changed.

[0017] Further technical solutions, after the vehicle-mounted remote monitoring terminal control unit receives the safety driving mode control instructions and safety driving mode key parameter values, the data upload frequency to the cloud vehicle networking platform is changed.

[0018] In a second aspect, the present application provides a vehicle safety driving control method based on an electronic fence, comprising:

[0019] When the cloud vehicle networking platform determines that the vehicle enters the electronic fence map range during the electronic fence effective time period according to the real-time positioning information uploaded by the vehicle remote monitoring terminal, the cloud vehicle networking platform sends a safety driving mode control instruction and a safety driving mode key parameter value to the vehicle remote monitoring terminal, and the vehicle remote monitoring terminal sends the safety driving mode control instruction and the safety driving mode key parameter value to the combination instrument, the vehicle controller, the low-speed driving prompter and the vehicle remote monitoring terminal control unit through the vehicle CAN network, so as to realize the vehicle safety driving mode.

[0020] Further technical solutions also include: when the cloud vehicle networking platform determines that the vehicle drives away from the electronic fence map range during the electronic fence effective time period or the electronic fence enters the invalid time according to the real-time positioning information uploaded by the vehicle remote monitoring terminal, the cloud vehicle networking platform sends a safety driving control mode closing instruction to the vehicle remote monitoring terminal, and the vehicle remote monitoring terminal sends the safety driving control mode closing instruction to the combination instrument, the vehicle controller, the low-speed driving prompter and the vehicle remote monitoring terminal control unit, so as to realize the switching of the vehicle safety driving mode.

[0021] Further technical solutions, after the combination instrument, the vehicle controller, the low-speed driving prompter and the vehicle remote monitoring terminal control unit receive the safety driving control mode closing instruction, they return to the initial state, and the combination instrument reminds the switching of the driving mode through sound and light.

[0022] Compared with the prior art, the present application has the following advantages:

[0023] 1、The present application sets at least one electronic fence in the cloud vehicle networking platform, and the specific electronic fence range includes but is not limited to special areas such as schools, hospitals and construction sites. According to the actual running line of the vehicle (bus), the real-time positioning information of the vehicle (bus) is obtained, and when the vehicle (bus) enters the electronic fence map range during the electronic fence effective time period, the safety driving mode can be automatically switched. By limiting the maximum speed and acceleration of the driving motor and adjusting the minimum speed limit value of the low-speed driving prompter, the driving speed of the bus in the special area and the operation risk of the driver are reduced, and the occurrence of traffic accidents can be effectively avoided.

[0024] 2. In the present application, when the vehicle (bus) is in a safe driving mode, through the interaction of the cloud-based vehicle networking platform and the vehicle-mounted remote monitoring terminal, various parameters of the vehicle can be strictly recorded. Once a traffic accident occurs, these recorded parameters will become important evidence, which is conducive to the determination of accident liability and improves the evidence collection ability after the accident. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings constituting a part of the specification of the present application serve to provide further understanding of the present application, the illustrative embodiments of the present application and their descriptions serve to explain the present application, and do not constitute improper limitations on the present application.

[0026] Figure 1 Control command and parameter flow conversion schematic diagram of the vehicle (bus) bound to the present application when entering the electronic fence map range within the effective time period; DETAILED DESCRIPTION

[0027] The present application will be further described below in conjunction with the drawings and embodiments.

[0028] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as generally understood by those skilled in the art to which the present application belongs. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0029] Term explanation:

[0030] Cloud-based vehicle networking platform: It is a comprehensive service platform that connects vehicles with the Internet by using cloud computing, big data, Internet of Things and other technologies, and realizes the collection, storage, analysis and application of vehicle data. It can monitor the position, driving state, fuel consumption and other information of the vehicle in real time, and provide various intelligent services and solutions for vehicle owners, vehicle manufacturers, traffic management departments and other users.

[0031] Embodiment one

[0032] The present embodiment provides a vehicle safe driving control system based on electronic fence. In the present embodiment, a pure electric bus is taken as an example for illustration, as shown in Figure 1 The safe driving control system realizes the automatic switching of the safe driving mode of the pure electric bus through the cloud-based vehicle networking platform and the vehicle-mounted remote monitoring terminal.

[0033] Specifically, at least one electronic fence is set in the cloud vehicle networking platform, each electronic fence including electronic fence basic information and safety driving mode key parameter values, wherein the electronic fence basic information includes electronic fence map range information and electronic fence effective time period; the safety driving mode key parameter values include drive motor maximum speed limit value, acceleration limit value, minimum vehicle speed limit value for low-speed driving prompter to be turned off, and vehicle-mounted remote terminal data upload frequency value; the specific method for setting the electronic fence is as follows: first, the electronic fence map range information is determined. The specific area range of the electronic fence on the map is determined according to actual needs by using the integrated map tool in the cloud vehicle networking platform. For example, if the electronic fence is set for a school area, the boundary range of the school, including all entrances and exits of the school area and surrounding road areas that may be involved, is accurately outlined on the map to ensure that the electronic fence can completely cover the area that needs to be specially managed; then, the electronic fence effective time period is determined, the electronic fence effective time is set according to the actual situation and safety needs of different special areas, still taking the school as an example, the school can be set to the time period of school starting or school ending (such as 7:00-8:30 in the morning and 16:00-18:00 in the afternoon) and special time period of school activities, the electronic fence is effective in these time periods, and the vehicle entering the area in the above time period will trigger the safety driving mode; then, the safety driving mode key parameter values are determined, the drive motor maximum speed limit value is set according to the actual situation of the electronic fence map range, for example, in a hospital area, considering that the personnel are dense and the movement is complex, the drive motor maximum speed limit value is set to be relatively low to ensure that the bus can safely travel at a low speed and avoid accidental collision accidents; the acceleration limit value is set according to the terrain characteristics of the electronic fence map range area, for example, in a construction site area, the acceleration of the bus needs to be limited to prevent the bus from losing control due to excessive acceleration and endangering the safety of the construction personnel and the bus itself because of the poor road conditions and the uncertainty of the construction personnel and equipment; the minimum vehicle speed limit value for the low-speed driving prompter to be turned off is determined according to the pedestrian flow of the electronic fence map range area, for example, in a special area with more pedestrians, the minimum vehicle speed limit value for the low-speed driving prompter to be turned off is set to be relatively high so that the prompt sound is kept on when the vehicle speed is high to remind pedestrians to pay attention to the vehicle, and when the pedestrians are less, the limit can be appropriately reduced; considering the difference in the demand of the cloud vehicle networking platform for monitoring data of the bus in different special areas, the data upload frequency of the vehicle-mounted remote terminal in the electronic fence map area needs to be set, for example, in some areas such as government offices or important traffic hubs, the bus data needs to be uploaded more frequently to timely grasp the bus dynamics and ensure the safety of driving in the area; and in some ordinary areas, the upload frequency can be appropriately reduced to reduce the data transmission amount and the running burden of the platform.

[0034] According to the above method, at least one electronic fence is set, and then each electronic fence is bound with a bus in the cloud vehicle networking platform. The binding of the electronic fence with the bus mainly binds the electronic fence with the bus VIN (Vehicle Identification Number) information, ensures that the setting of each electronic fence can be accurately applied to the corresponding bus, and obtains the real-time positioning information of the bus through the vehicle-mounted remote monitoring terminal. That is, the vehicle-mounted remote monitoring terminal will transmit the real-time positioning information of the bus to the cloud vehicle networking platform according to the set uploading frequency. When the cloud vehicle networking platform receives the real-time positioning information of the bus, it determines whether the bus is in the range of the electronic fence according to the real-time positioning information, and sends a safe driving mode control instruction and a safe driving mode key parameter value to the vehicle-mounted remote monitoring terminal according to the result of the determination, so as to realize the switching of the safe driving mode of the bus.

[0035] Specifically: when the vehicle-mounted remote monitoring terminal receives the safe driving mode control instruction and the safe driving mode key parameter value sent by the cloud vehicle networking platform, it sends the safe driving mode control instruction and the safe driving mode key parameter value sent by the cloud vehicle networking platform to the vehicle controller, the combination instrument, the low-speed driving prompter and the vehicle-mounted remote monitoring terminal control unit through the vehicle CAN network. Among them, after the vehicle controller receives the safe driving mode control instruction and the safe driving mode key parameter value, the maximum speed limit and the acceleration limit of the driving motor are changed; after the combination instrument receives the safe driving mode control instruction and the safe driving mode key parameter value, the sound and light prompt is performed; after the low-speed driving prompter receives the safe driving mode control instruction and the safe driving mode key parameter value, the minimum speed limit of the shutdown prompt sound is changed; after the vehicle-mounted remote monitoring terminal control unit receives the safe driving mode control instruction and the safe driving mode key parameter value, the data uploading frequency to the cloud vehicle networking platform is changed; and then the safe driving mode is automatically switched in the range of the electronic fence. If the bus is not in the range of the electronic fence, the cloud vehicle networking platform sends a safe driving control mode closing instruction to the vehicle-mounted remote monitoring terminal. When the vehicle-mounted remote monitoring terminal receives the safe driving control mode closing instruction, it sends the safe driving control mode closing instruction sent by the cloud vehicle networking platform to the vehicle controller, the combination instrument, the low-speed driving prompter and the vehicle-mounted remote monitoring terminal control unit through the vehicle CAN network, so as to realize the switching of the driving mode.

[0036] Embodiment Two

[0037] The embodiment provides a vehicle safe driving control method based on an electronic fence, which comprises the following steps:

[0038] When the cloud vehicle networking platform judges that the bus enters the electronic fence map range during the electronic fence effective time period according to the real-time positioning information uploaded by the vehicle remote monitoring terminal, the cloud vehicle networking platform sends a safe driving mode control instruction and a safe driving mode key parameter value to the vehicle remote monitoring terminal, and the vehicle remote monitoring terminal sends the safe driving mode control instruction and the safe driving mode key parameter value to the combination instrument, the vehicle controller, the low-speed driving prompter and the vehicle remote monitoring terminal control unit through the vehicle CAN network, so as to realize the safe driving mode of the bus.

[0039] Further comprising: when the cloud vehicle networking platform judges that the bus drives away from the electronic fence map range during the electronic fence effective time period or the electronic fence enters the invalid time according to the real-time positioning information uploaded by the vehicle remote monitoring terminal, the cloud vehicle networking platform sends a safe driving control mode closing instruction to the vehicle remote monitoring terminal, and the vehicle remote monitoring terminal sends the safe driving control mode closing instruction to the combination instrument, the vehicle controller, the low-speed driving prompter and the vehicle remote monitoring terminal control unit, so as to realize the switching of the safe driving mode of the bus.

[0040] When the combination instrument, the vehicle controller, the low-speed driving prompter and the vehicle remote monitoring terminal control unit receive the safe driving control mode closing instruction, they return to the initial state, and the combination instrument reminds the switching of the driving mode through sound and light.

[0041] The above is only the preferred embodiment of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

[0042] The above describes the specific embodiments of the present application in combination with the accompanying drawings, but is not used to limit the protection scope of the present application. Those skilled in the art should understand that various modifications or changes made on the basis of the technical solutions of the present application without creative labor are still within the protection scope of the present application.

Claims

1. An electronic fence based vehicle safe driving control system characterized in that, The application relates to an interactive cloud vehicle networking platform and a vehicle-mounted remote monitoring terminal. At least one electronic fence is arranged in the cloud vehicle networking platform, wherein each electronic fence comprises electronic fence basic information and safety driving mode key parameter values; the electronic fence basic information comprises electronic fence map range information and an electronic fence effective time period; the safety driving mode key parameter values comprise a driving motor maximum speed limit value, an acceleration limit value, a minimum vehicle speed limit value for closing a low-speed driving prompter and a vehicle-mounted remote terminal data uploading frequency value; In the cloud vehicle networking platform, each electronic fence is bound to the vehicle, and real-time positioning information of the vehicle is acquired through the vehicle-mounted remote monitoring terminal; In the cloud vehicle networking platform, whether the vehicle is in the electronic fence range is judged according to the positioning information, safety driving mode control instructions and safety driving mode key parameter values are sent to the vehicle-mounted remote monitoring terminal, and the switching of the vehicle safety driving mode is realized; After the vehicle-mounted remote monitoring terminal receives the safety driving mode control instructions and safety driving mode key parameter values sent by the cloud vehicle networking platform, the safety driving mode control instructions and safety driving mode key parameter values sent by the cloud vehicle networking platform are sent to the vehicle controller, the combination instrument, the low-speed driving prompter and the vehicle-mounted remote monitoring terminal control unit through the vehicle CAN network. After the vehicle controller receives the safety driving mode control instructions and safety driving mode key parameter values, the driving motor maximum speed limit value and the acceleration limit value are changed.

2. The e-fence based vehicle safety driving control system as claimed in claim 1, wherein, After the combination instrument receives the safety driving mode control instructions and safety driving mode key parameter values, an audible and visual reminder is performed.

3. The e-fence based vehicle safety driving control system as claimed in claim 1, wherein, After the low-speed driving prompter receives the safety driving mode control instructions and safety driving mode key parameter values, the minimum vehicle speed limit value for closing the prompt sound is changed.

4. The e-fence based vehicle safety driving control system as claimed in claim 1, wherein, After the vehicle-mounted remote monitoring terminal control unit receives the safety driving mode control instructions and safety driving mode key parameter values, the data uploading frequency to the cloud vehicle networking platform is changed.

5. The e-fence based vehicle safety driving control system as claimed in claim 1, wherein, When the cloud vehicle networking platform judges that the vehicle drives into the electronic fence map range in the electronic fence effective time period according to the real-time positioning information uploaded by the vehicle-mounted remote monitoring terminal, the cloud vehicle networking platform sends safety driving mode control instructions and safety driving mode key parameter values to the vehicle-mounted remote monitoring terminal, the vehicle-mounted remote monitoring terminal sends the safety driving mode control instructions and safety driving mode key parameter values to the combination instrument, the vehicle controller, the low-speed driving prompter and the vehicle-mounted remote monitoring terminal control unit through the vehicle CAN network, and the safety driving mode of the vehicle is realized.

6. A method for safe driving control of a vehicle based on an electronic fence, characterized by, The electronic fence basic information comprises electronic fence map range information and an electronic fence effective time period; the safety driving mode key parameter values comprise a driving motor maximum speed limit value, an acceleration limit value, a minimum vehicle speed limit value for closing a low-speed driving prompter and a vehicle-mounted remote terminal data uploading frequency value; ​ ​ When the vehicle remote monitoring terminal receives the safety driving mode control instruction and safety driving mode key parameter value sent by the cloud vehicle networking platform, the safety driving mode control instruction and safety driving mode key parameter value sent by the cloud vehicle networking platform are sent to the vehicle controller, combination instrument, low-speed driving prompter and vehicle remote monitoring terminal control unit through the vehicle CAN network.

7. The electronic fence-based vehicle safe driving control method of claim 6, wherein, Also includes: When the cloud vehicle networking platform determines that the vehicle drives out of the electronic fence map range or the electronic fence enters the invalid time according to the real-time positioning information uploaded by the vehicle remote monitoring terminal, the cloud vehicle networking platform sends a safety driving control mode closing instruction to the vehicle remote monitoring terminal, and the vehicle remote monitoring terminal sends the safety driving control mode closing instruction to the combination instrument, vehicle controller, low-speed driving prompter and vehicle remote monitoring terminal control unit respectively, to realize the switching of the vehicle safety driving mode. 8.The electronic fence-based vehicle safe driving control method of claim 7, wherein After receiving the safety driving control mode closing instruction, the combination instrument, vehicle controller, low-speed driving prompter and vehicle remote monitoring terminal control unit return to the initial state, and the combination instrument reminds the switching of the driving mode through sound and light.

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