Vehicle safe driving control system and method based on electronic fence

Abstract

The invention discloses a vehicle safe driving control system and method based on an electronic fence, and relates to the technical field of vehicle safe driving control, and the method comprises the steps: setting at least one electronic fence in a cloud vehicle networking platform, and each electronic fence comprises electronic fence basic information and a safe driving mode key parameter value; each electronic fence is bound with a vehicle in the cloud vehicle networking platform, and real-time positioning information of the vehicle is acquired through a vehicle-mounted remote monitoring terminal; and judging whether the vehicle is in an electronic fence range or not according to the positioning information in the cloud vehicle networking platform, and sending a safe driving mode control instruction and a safe driving mode key parameter value to the vehicle-mounted remote monitoring terminal so as to realize the switching of the safe driving mode of the vehicle. Switching of the safe driving modes is flexibly controlled according to the actual operation route of the vehicle, the vehicle operation safety is improved, the traffic accident risk is reduced, and the evidence obtaining capacity after an accident is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle safe driving control, and in particular to a vehicle safe driving control system and method based on electronic fences. Background Art

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

[0003] With the continuous development of electric vehicle technology, pure electric buses are increasingly seen in cities, becoming 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 driver's operating intention through sensor data such as gear position signal, accelerator pedal signal, brake pedal signal, handbrake signal, etc., converts the relevant signal into required torque and transmits it to the vehicle power system through the vehicle CAN bus. The power system outputs driving force according to the required torque and other restrictions of the vehicle controller to realize the driving control of the vehicle. The vehicle controller can limit the maximum speed of the drive motor and the acceleration of the vehicle by controlling the value of the required torque.

[0004] During the operation of pure electric buses, there are different safety risks when they run to different areas. Special areas such as schools, hospitals and construction sites have special requirements for the driving speed of buses and the operating specifications of drivers. However, the study found that based on the existing drive control method of pure electric buses, it is impossible to automatically adjust the driving mode according to the area where the vehicle is located, so that when the vehicle is currently driving in a special area, it still drives in a conventional mode, increasing the risk of traffic accidents. In addition, the existing technology lacks information such as the time when the vehicle enters and leaves a specific area, and the changes in operating parameters in the area, so that the existing technology cannot trace the relevant information of the vehicle in a specific area after the accident occurs, which brings difficulties to evidence collection after the accident. Therefore, how to flexibly control the vehicle to automatically switch to a safe driving mode has become a technical problem that technicians in this field need to solve urgently. Summary of the invention

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

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

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

[0008] An interactive cloud-based Internet of Vehicles platform and an on-board remote monitoring terminal; the on-board remote monitoring terminal is respectively connected to a vehicle controller, a combination instrument, a low-speed driving reminder, and an on-board remote monitoring terminal control unit through a vehicle CAN network;

[0009] At least one electronic fence is set in the cloud-based Internet of Vehicles platform, wherein each of the electronic fences includes basic information of the electronic fence and key parameter values ​​of a safe driving mode;

[0010] Binding each of the electronic fences to the vehicle in the cloud-based Internet of Vehicles platform, and obtaining real-time positioning information of the vehicle through a vehicle-mounted remote monitoring terminal;

[0011] In the cloud-based Internet of Vehicles platform, it is determined whether the vehicle is within the electronic fence range based on the positioning information, and a safe driving mode control instruction and a safe driving mode key parameter value are sent to the vehicle-mounted remote monitoring terminal to switch the vehicle's safe driving mode.

[0012] A further technical solution is that the basic information of the electronic fence includes: electronic fence map range information and electronic fence effective time period; the key parameter values ​​of the safe driving mode include: maximum speed limit of the drive motor, acceleration limit, minimum speed limit for turning off the low-speed driving reminder, and frequency value of data upload of the vehicle remote terminal.

[0013] A further technical solution is that when the on-board remote monitoring terminal receives the safe driving mode control instructions and safe driving mode key parameter values ​​sent by the cloud-based Internet of Vehicles platform, the safe driving mode control instructions and safe driving mode key parameter values ​​sent by the cloud-based Internet of Vehicles platform are sent to the vehicle controller, instrument cluster, low-speed driving reminder and on-board remote monitoring terminal control unit using the vehicle's CAN network.

[0014] According to a further technical solution, after the vehicle controller receives the safe driving mode control instruction and the key parameter value of the safe driving mode, it changes the maximum speed limit and acceleration limit of the drive motor.

[0015] According to a further technical solution, after receiving the safe driving mode control instruction and the key parameter value of the safe driving mode, the instrument cluster provides an audible and visual reminder.

[0016] According to a further technical solution, after the low-speed driving reminder receives the safe driving mode control instruction and the key parameter value of the safe driving mode, the minimum speed limit for turning off the reminder sound is changed.

[0017] According to a further technical solution, after the vehicle-mounted remote monitoring terminal control unit receives the safe driving mode control instruction and the key parameter value of the safe driving mode, it changes the frequency of uploading data to the cloud-based Internet of Vehicles platform.

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

[0019] When the cloud-based Internet of Vehicles platform determines, based on the real-time positioning information uploaded by the on-board remote monitoring terminal, that the vehicle enters the range of the electronic fence map during the effective period of the electronic fence, the cloud-based Internet of Vehicles platform sends safe driving mode control instructions and safe driving mode key parameter values ​​to the on-board remote monitoring terminal. The on-board remote monitoring terminal uses the vehicle's CAN network to send the safe driving mode control instructions and safe driving mode key parameter values ​​to the instrument cluster, vehicle controller, low-speed driving reminder and on-board remote monitoring terminal control unit respectively, to achieve the vehicle's safe driving mode.

[0020] Further technical solutions also include: when the cloud-based Internet of Vehicles platform determines, based on the real-time positioning information uploaded by the on-board remote monitoring terminal, that the vehicle has left the electronic fence map range during the effective period of the electronic fence or the electronic fence has entered the expiration time, the cloud-based Internet of Vehicles platform sends a safe driving control mode shutdown command to the on-board remote monitoring terminal, and the on-board remote monitoring terminal sends the safe driving control mode shutdown command to the instrument cluster, vehicle controller, low-speed driving reminder and on-board remote monitoring terminal control unit respectively, to achieve the switching of the vehicle's safe driving mode.

[0021] According to a further technical solution, the instrument cluster, vehicle controller, low-speed driving reminder and vehicle-mounted remote monitoring terminal control unit are restored to their initial states after receiving the safe driving control mode shutdown command, and the instrument cluster reminds the driver of the switch of driving mode through sound and light.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention sets at least one electronic fence in the cloud-based Internet of Vehicles platform. The specific electronic fence range includes but is not limited to special areas such as schools, hospitals and construction sites. According to the actual operation route of the vehicle (bus), the real-time positioning information of the vehicle (bus) is obtained. When the vehicle (bus) enters the electronic fence map range during the effective time period of the electronic fence, it can automatically switch to the safe driving mode. By limiting the maximum speed and acceleration of the drive motor and adjusting the minimum speed limit for closing the low-speed driving reminder, the driving speed of the bus in special areas and the driver's operating risk are reduced, which can effectively avoid the occurrence of traffic accidents.

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

[0025] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0026] Figure 1 A schematic diagram of the flow of control commands and parameters when a vehicle (bus) bound to the present invention enters the range of the electronic fence map within the valid time period; DETAILED DESCRIPTION

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

[0028] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those of ordinary skill in the art to which the present invention belongs. In the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0029] Terminology explanation:

[0030] Cloud-based Internet of Vehicles platform: It is a comprehensive service platform that uses cloud computing, big data, Internet of Things and other technologies to connect vehicles to the Internet and realize the collection, storage, analysis and application of vehicle data. It can monitor the location, driving status, fuel consumption and other information of the vehicle in real time, and provide various intelligent services and solutions for car owners, car companies, traffic management departments, etc.

[0031] Embodiment 1

[0032] This embodiment provides a vehicle safety driving control system based on an electronic fence. In this embodiment, a pure electric bus is used as an example for explanation. Figure 1 As shown, it includes an interactive cloud-based Internet of Vehicles platform and an on-board remote monitoring terminal, wherein the on-board remote monitoring terminal is connected to a vehicle controller, a combination instrument, a low-speed driving reminder, and an on-board remote monitoring terminal control unit through the vehicle CAN network. The safe driving control system realizes automatic switching of the safe driving mode of the pure electric bus through the cloud-based Internet of Vehicles platform and the on-board remote monitoring terminal.

[0033] Specifically: at least one electronic fence is set in the cloud-based Internet of Vehicles platform. Each electronic fence includes basic information of the electronic fence and key parameter values ​​of the safe driving mode. The basic information of the electronic fence includes: the map range information of the electronic fence and the effective time period of the electronic fence; the key parameter values ​​of the safe driving mode include: the maximum speed limit of the drive motor, the acceleration limit, the minimum speed limit for turning off the low-speed driving reminder, and the frequency of data upload of the vehicle remote terminal; the specific method of setting the electronic fence is: first determine the map range information of the electronic fence. Use the map tool integrated in the cloud-based Internet of Vehicles platform to determine the specific area range of the electronic fence on the map according to actual needs. For example, if an electronic fence is set up for a school area, it is necessary to accurately outline the boundary of the school on the map, including the entrances and exits of the campus, the surrounding road areas that may be involved, etc., to ensure that the electronic fence can completely cover the area that requires special safety management; then determine the effective time period of the electronic fence, and set the effective time of the electronic fence according to the actual situation and safety requirements of different special areas. Taking the school as an example, it can be set to the school or after-school time period from Monday to Friday (such as 7:00-8:30 in the morning, 16:00-18:00 in the afternoon) and special time periods such as school activities. During these time periods, the electronic fence is effective, and vehicles entering the area during the above time periods will trigger the safe driving mode; then determine the key parameter values ​​of the safe driving mode, and set the maximum speed limit of the drive motor according to the actual situation of the electronic fence map range. For example, in the hospital area, considering the dense population and complex actions, the maximum speed limit of the drive motor is set lower to ensure that the bus can travel safely at a lower speed to avoid accidental collision accidents; according to the scope of the electronic fence map The acceleration limit is set according to the terrain characteristics of the area. For example, in the construction site area, due to the possible poor road conditions and the uncertainty of construction personnel and equipment, it is necessary to limit the acceleration of the bus to prevent the bus from losing control due to excessive acceleration, endangering the safety of the construction personnel and the bus itself; the minimum speed limit for turning off the low-speed driving reminder is determined according to the pedestrian flow in the electronic fence map area. For example, in special areas with a large number of pedestrians, the minimum speed limit for turning off the low-speed driving reminder is set higher so that the reminder sound can still be turned on when the vehicle speed is high to remind pedestrians to pay attention to the vehicle. When there are fewer pedestrians, this limit can be appropriately lowered; considering the differences in the demand for bus monitoring data in different special areas of the cloud-based Internet of Vehicles platform, it is necessary to set the data upload frequency of the on-board remote terminal in the electronic fence map area. For example, in some areas, such as government agencies or important transportation hubs, bus data needs to be uploaded more frequently to keep abreast of bus dynamics and ensure driving safety in the area; while in some ordinary areas, the upload frequency can be appropriately reduced to reduce the amount of data transmission and the operating burden of the platform.

[0034] According to the above method, at least one electronic fence is set, and then each electronic fence is bound to a bus in the cloud-based Internet of Vehicles platform. The electronic fence is bound to the bus mainly by binding the electronic fence to the VIN (vehicle identification number) information of the bus, ensuring that the setting of each electronic fence can be accurately applied to the corresponding bus, and obtaining the real-time positioning information of the bus through the on-board remote monitoring terminal, that is, the on-board remote monitoring terminal will transmit the real-time positioning information of the bus to the cloud-based Internet of Vehicles platform according to the set upload frequency. When the cloud-based Internet of Vehicles platform receives the real-time positioning information of the bus, it determines whether the bus is within the range of the electronic fence based on the real-time positioning information, and sends the safe driving mode control instruction and the key parameter value of the safe driving mode to the on-board remote monitoring terminal based on the result of the judgment, so as to realize the switching of the safe driving mode of the bus.

[0035] Specifically: when the vehicle remote monitoring terminal receives the safe driving mode control command and the key parameter value of the safe driving mode sent by the cloud-based Internet of Vehicles platform, it uses the vehicle CAN network to send the safe driving mode control command and the key parameter value of the safe driving mode sent by the cloud-based Internet of Vehicles platform to the vehicle controller, the instrument cluster, the low-speed driving reminder, and the vehicle remote monitoring terminal control unit. Among them, after the vehicle controller receives the safe driving mode control command and the key parameter value of the safe driving mode, it changes the maximum speed limit and acceleration limit of the drive motor; after the instrument cluster receives the safe driving mode control command and the key parameter value of the safe driving mode, it makes an audible and visual reminder; after the low-speed driving reminder receives the safe driving mode control command and the key parameter value of the safe driving mode, it changes the minimum speed limit for turning off the reminder sound; after the vehicle remote monitoring terminal control unit receives the safe driving mode control command and the key parameter value of the safe driving mode, it changes the frequency of data upload to the cloud-based Internet of Vehicles platform; thereby realizing automatic switching of the safe driving mode within the electronic fence. If the bus is not within the range of the electronic fence, the cloud-based Internet of Vehicles platform sends a safe driving control mode shutdown command to the on-board remote monitoring terminal. When the on-board remote monitoring terminal receives the safe driving control mode shutdown command, it uses the vehicle CAN network to send the safe driving control mode shutdown command sent by the cloud-based Internet of Vehicles platform to the vehicle controller, instrument cluster, low-speed driving reminder and on-board remote monitoring terminal control unit to switch the driving mode.

[0036] Embodiment 2

[0037] This embodiment provides a vehicle safe driving control method based on electronic fence, including the following:

[0038] When the cloud-based Internet of Vehicles platform determines that the bus enters the electronic fence map range during the effective period of the electronic fence based on the real-time positioning information uploaded by the on-board remote monitoring terminal, the cloud-based Internet of Vehicles platform sends the safe driving mode control instructions and the key parameter values ​​of the safe driving mode to the on-board remote monitoring terminal. The on-board remote monitoring terminal uses the vehicle CAN network to send the safe driving mode control instructions and the key parameter values ​​of the safe driving mode to the instrument cluster, vehicle controller, low-speed driving reminder and on-board remote monitoring terminal control unit respectively, to realize the safe driving mode of the bus.

[0039] It also includes: when the cloud-based Internet of Vehicles platform determines, based on the real-time positioning information uploaded by the on-board remote monitoring terminal, that the bus has left the electronic fence map range during the effective period of the electronic fence or the electronic fence has entered the invalid period, the cloud-based Internet of Vehicles platform sends a safe driving control mode shutdown command to the on-board remote monitoring terminal, and the on-board remote monitoring terminal sends the safe driving control mode shutdown command to the instrument cluster, vehicle controller, low-speed driving reminder and on-board remote monitoring terminal control unit respectively, to achieve the switching of the bus's safe driving mode.

[0040] When the instrument cluster, vehicle controller, low-speed driving reminder and on-board remote monitoring terminal control unit receive the safe driving control mode shutdown command, they return to the initial state, and the instrument cluster reminds the switch of driving mode through sound and light.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0042] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A vehicle safety driving control system based on electronic fence, characterized in that: include: An interactive cloud-based Internet of Vehicles platform and an on-board remote monitoring terminal; the on-board remote monitoring terminal is respectively connected to a vehicle controller, a combination instrument, a low-speed driving reminder, and an on-board remote monitoring terminal control unit through a vehicle CAN network; At least one electronic fence is set in the cloud-based Internet of Vehicles platform, wherein each of the electronic fences includes basic information of the electronic fence and key parameter values ​​of a safe driving mode; Binding each of the electronic fences to the vehicle in the cloud-based Internet of Vehicles platform, and obtaining real-time positioning information of the vehicle through a vehicle-mounted remote monitoring terminal; In the cloud-based Internet of Vehicles platform, it is determined whether the vehicle is within the electronic fence range based on the positioning information, and a safe driving mode control instruction and a safe driving mode key parameter value are sent to the vehicle-mounted remote monitoring terminal to switch the vehicle's safe driving mode.

2. The vehicle safe driving control system based on electronic fence as claimed in claim 1, characterized in that: The basic information of the electronic fence includes: the electronic fence map range information and the effective time period of the electronic fence; the key parameter values ​​of the safe driving mode include: the maximum speed limit of the drive motor, the acceleration limit, the minimum speed limit for turning off the low-speed driving reminder, and the frequency of data upload of the vehicle remote terminal.

3. The vehicle safe driving control system based on electronic fence as claimed in claim 1, characterized in that: When the on-board remote monitoring terminal receives the safe driving mode control instructions and safe driving mode key parameter values ​​sent by the cloud-based Internet of Vehicles platform, it uses the vehicle CAN network to send the safe driving mode control instructions and safe driving mode key parameter values ​​sent by the cloud-based Internet of Vehicles platform to the vehicle controller, instrument cluster, low-speed driving reminder and on-board remote monitoring terminal control unit.

4. The vehicle safe driving control system based on electronic fence as claimed in claim 3, characterized in that: After receiving the safe driving mode control instruction and the key parameter value of the safe driving mode, the vehicle controller changes the maximum speed limit and acceleration limit of the drive motor.

5. The vehicle safe driving control system based on electronic fence as claimed in claim 3, characterized in that: After receiving the safe driving mode control instruction and the key parameter value of the safe driving mode, the combined instrument performs an audible and visual reminder.

6. The vehicle safe driving control system based on electronic fence as claimed in claim 3, characterized in that: After receiving the safe driving mode control instruction and the key parameter value of the safe driving mode, the low-speed driving reminder changes the minimum speed limit for turning off the reminder sound.

7. The vehicle safe driving control system based on electronic fence as claimed in claim 3, characterized in that: After receiving the safe driving mode control instruction and the key parameter value of the safe driving mode, the vehicle-mounted remote monitoring terminal control unit changes the frequency of uploading data to the cloud-based Internet of Vehicles platform.

8. A vehicle safe driving control method based on electronic fence, characterized in that: include: When the cloud-based Internet of Vehicles platform determines, based on the real-time positioning information uploaded by the on-board remote monitoring terminal, that the vehicle enters the range of the electronic fence map during the effective period of the electronic fence, the cloud-based Internet of Vehicles platform sends safe driving mode control instructions and safe driving mode key parameter values ​​to the on-board remote monitoring terminal. The on-board remote monitoring terminal uses the vehicle's CAN network to send the safe driving mode control instructions and safe driving mode key parameter values ​​to the instrument cluster, vehicle controller, low-speed driving reminder and on-board remote monitoring terminal control unit respectively, to achieve the vehicle's safe driving mode.

9. The vehicle safe driving control method based on electronic fence as claimed in claim 8, characterized in that: Also includes: When the cloud-based Internet of Vehicles platform determines, based on the real-time positioning information uploaded by the on-board remote monitoring terminal, that the vehicle has left the electronic fence map range during the effective period of the electronic fence or that the electronic fence has entered the invalid period, the cloud-based Internet of Vehicles platform sends a safe driving control mode shutdown command to the on-board remote monitoring terminal, and the on-board remote monitoring terminal sends the safe driving control mode shutdown command to the instrument cluster, vehicle controller, low-speed driving reminder and on-board remote monitoring terminal control unit respectively, to achieve the switching of the vehicle's safe driving mode.

10. The vehicle safe driving control method based on electronic fence as claimed in claim 9, characterized in that: After receiving the safe driving control mode shutdown instruction, the combination instrument, vehicle controller, low-speed driving reminder and vehicle-mounted remote monitoring terminal control unit are restored to the initial state, and the combination instrument reminds the switching of driving mode through sound and light.

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