Vehicle speed control method, device, equipment, system and vehicle management system

Abstract

The invention relates to a vehicle speed control method, device, equipment and system and a vehicle management system. Relates to a vehicle control technology, and solves the problem of lack of a mechanism for managing the speed of different engineering vehicles. The method comprises the following steps: in a vehicle moving process, obtaining speed limit information from a self-discovered electronic tag; intercepting a pedal signal generated by a pedal of the vehicle; and generating a speed control signal according to the speed limiting information and sending the speed control signal to a vehicle controller of the vehicle. The technical scheme provided by the invention is suitable for regional vehicle speed management, and an efficient and reliable engineering vehicle speed limiting scheme is realized.

Description

Technical Field

[0001] The present disclosure relates to vehicle control technology, and particularly to a vehicle speed control method, apparatus, device, system, and vehicle management system. Background Art

[0002] In industrial plants or workplaces, there are a large number of engineering vehicles used for handling, loading and unloading, construction, etc. Effective speed management of vehicle passage areas is the key to ensuring traffic safety and production efficiency. Unrestricted or overly high vehicle speeds, especially in some narrow sections with frequent personnel shuttling, are likely to cause safety accidents; restricting vehicle speeds to low speeds will have an impact on long-distance transportation work and other aspects of efficiency, resulting in economic losses.

[0003] Generally, fixed speed limits (such as 5 km / h) are achieved by locally modifying controller parameters and speed limits are set by remotely sending instructions over the network. However, due to reasons such as complex production requirements, diverse road conditions, and a wide variety of engineering vehicle models within the plant area, there is still no appropriate solution mechanism for effectively managing the speeds of different engineering vehicles while taking into account both safety and efficiency. Summary of the Invention

[0004] To overcome the problems in the related art, the present disclosure provides a vehicle speed control method, apparatus, device, system, and vehicle management system. By carrying electronic tags with speed limit information on devices at different geographical locations, speed limit strategies are provided for passing vehicles, realizing a general vehicle speed control scheme, effectively and timely managing the speeds of different types of vehicles, improving the traffic efficiency on the premise of ensuring safety, and solving the problem of the lack of a speed management mechanism for different engineering vehicles.

[0005] According to a first aspect of an embodiment of the present disclosure, a vehicle speed control device is provided, including: a first data processing unit, a second data processing unit, and a speed limit controller; The first data processing unit is configured to establish a wireless communication connection with an electronic tag, obtain the speed limit information carried in the electronic tag through the wireless communication connection, and send the speed limit information to the speed limit controller; The second data processing unit is configured to intercept the pedal signal generated by the vehicle's pedal and send the pedal signal to the speed limit controller; The speed limit controller is connected to the vehicle's vehicle controller and is configured to receive the speed limit information sent by the first data processing unit and the pedal signal sent by the second data processing unit, and generate and send a speed control signal to the vehicle controller according to the speed limit information and the pedal signal.

[0006] According to a second aspect of the embodiments of the present disclosure, there is provided a vehicle speed control system, including a vehicle controller and the vehicle speed control device as described above; The vehicle speed control device is configured to establish a wireless communication connection with an electronic tag and obtain speed limit information carried in the electronic tag through the wireless communication connection, intercept a pedal signal generated by a pedal of the vehicle and send the pedal signal to the speed limit controller, and generate and send the speed control signal to the vehicle controller according to the speed limit information and the pedal signal.

[0007] According to a third aspect of the embodiments of the present disclosure, there is provided a vehicle management system, including at least one vehicle speed control device as described above and at least one electronic tag, where the at least one electronic tag is disposed at different geographical locations; The vehicle speed control device is configured to establish a wireless communication connection with the electronic tag and obtain the speed limit information carried in the electronic tag through the wireless communication connection, intercept a pedal signal generated by a pedal of the vehicle and send the pedal signal to the speed limit controller, and generate and send the speed control signal to the vehicle controller according to the speed limit information and the pedal signal.

[0008] According to a fourth aspect of the embodiments of the present disclosure, there is provided a vehicle speed control method applicable to the vehicle speed control device as described above, and the method includes: Obtaining speed limit information from a discovered electronic tag during the movement of the vehicle; Intercepting a pedal signal generated by a pedal of the vehicle; Generating and sending a speed control signal to a vehicle controller of the vehicle according to the speed limit information and / or the pedal signal.

[0009] Further, the speed limit information includes a speed limit indication and / or a limit speed value, the pedal signal indicates a target speed of the vehicle, and the step of generating and sending the speed control signal to the vehicle controller of the vehicle according to the speed limit information includes: In the case where the target speed exceeds the limit speed value, generating and sending the speed control signal to the vehicle controller, and carrying the limit speed value in the speed control signal to instruct the vehicle controller to control the vehicle speed according to the limit speed value; In the case where the target speed does not exceed the limit speed value, generating and sending the speed control signal to the vehicle controller, and carrying the target speed in the speed control signal to instruct the vehicle controller to control the vehicle speed according to the target speed.

[0010] Further, the speed limit information includes a speed limit release indication, and the pedal signal indicates that the pedal is released. The step of generating a speed control signal according to the speed limit information and sending it to the vehicle controller of the vehicle includes: When the pedal signal indicates that the pedal is released, release the speed limit and transparently transmit the pedal signal to the vehicle controller.

[0011] Further, the speed limit information is encrypted using a preset encryption format. The step of obtaining the speed limit information from the self-discovered electronic tag includes: Obtain data from the self-discovered electronic tag; According to the preset encryption format, parse the data to obtain at least one set of speed limit information.

[0012] Further, the method further includes: When the vehicle starts, obtain the speed limit information before the vehicle shuts off, so as to generate a speed control signal according to the speed limit information and send it to the vehicle controller of the vehicle.

[0013] According to a fifth aspect of the embodiments of the present disclosure, there is provided a vehicle speed control device applicable to the vehicle speed control device as described above. The device includes: A speed limit information acquisition module, configured to acquire speed limit information from a self-discovered electronic tag during the movement of the vehicle; A pedal signal acquisition module, configured to intercept the pedal signal generated by the pedal of the vehicle; A speed control module, configured to generate a speed control signal according to the speed limit information and / or the pedal signal and send it to the vehicle controller of the vehicle.

[0014] Further, the speed control module includes: A first signal transmission module, configured to generate and send the speed control signal to the vehicle controller when the speed limit information includes speed limit indication information and / or a limit speed value, and the target speed exceeds the limit speed value, and carry the limit speed value in the speed control signal to instruct the vehicle controller to control the vehicle speed according to the limit speed value; A second signal transmission module, configured to generate and send the speed control signal to the vehicle controller when the speed limit information includes speed limit indication information and / or a limit speed value, and the target speed does not exceed the limit speed value, and carry the target speed in the speed control signal to instruct the vehicle controller to control the vehicle speed according to the target speed; The third signal transmission module is configured to cancel the speed limit and transparently transmit the pedal signal to the vehicle controller when the speed limit information includes a speed limit cancellation instruction and the pedal signal indicates that the pedal is released.

[0015] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: The first data processing unit discovers and acquires data from the electronic tag in real time to obtain speed limit information; the second data processing unit intercepts the pedal signal generated by the pedal and transmits it to the data processing module; and then the data processing module generates and sends a speed control signal to the vehicle controller based on the speed limit information and / or the pedal signal to control the driving speed of the vehicle. Through the easily deployable and low-cost electronic tag and the vehicle speed control device adapted to a variety of different vehicle models, an efficient and reliable engineering vehicle speed limit solution is realized, accurately managing the geographical range, speed value, etc. of vehicle speed limits, taking into account production efficiency while ensuring production safety, and solving the problem of the lack of a speed management mechanism for different engineering vehicles.

[0016] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present disclosure and, together with the specification, are used to explain the principles of the present disclosure.

[0018] Figure 1 is a schematic structural diagram of a vehicle speed control device shown according to an exemplary embodiment.

[0019] Figure 2 is a schematic structural diagram of a vehicle speed control system shown according to an exemplary embodiment.

[0020] Figure 3 is a schematic structural diagram of a vehicle management system shown according to an exemplary embodiment.

[0021] Figure 4 is a flowchart of a vehicle speed control method shown according to an exemplary embodiment.

[0022] Figure 5 is a flowchart of another vehicle speed control method shown according to an exemplary embodiment.

[0023] Figure 6 is another vehicle speed control method shown according to an exemplary embodiment.

[0024] Figure 7 is a schematic structural diagram of a vehicle speed control system shown according to an exemplary embodiment.

[0025] Figure 8 It is a schematic structural diagram of a vehicle speed control device according to an exemplary embodiment.

[0026] Figure 9 is a schematic structural diagram of the speed control module 803 according to an exemplary embodiment. DETAILED DESCRIPTION

[0027] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0028] The speed of vehicles can be limited by modifying controller parameters locally to set fixed speed limits and by issuing speed limit commands remotely through the network. However, due to the complex production requirements, diverse road conditions, and a wide variety of engineering vehicle models within the factory, there is still no appropriate solution for how to effectively manage the speed of different engineering vehicles while balancing safety and efficiency.

[0029] In order to solve the above problems, the embodiments of the present disclosure provide a vehicle speed control method, device, equipment, system and vehicle management system. A vehicle management solution based on electronic tags is provided, which not only ensures production safety, but also takes into account production efficiency, and solves the problem of lack of speed management mechanism for different engineering vehicles.

[0030] An exemplary embodiment of the present disclosure provides a vehicle speed control device, the structure of which is as follows: Figure 1 As shown, including: A first data processing unit 101, a second data processing unit 102 and a speed limit controller 103; The first data processing unit 101 is used to establish a wireless communication connection with the electronic tag, obtain the speed limit information carried in the electronic tag through the wireless communication connection, and send the speed limit information to the speed limit controller; According to an exemplary embodiment, the data transmitted between the electronic tag and the first data processing unit 101 is in an encrypted format. When writing data to the electronic tag, the data in the encrypted format can be written. After the first data processing unit 101 obtains the data, it decrypts it according to the preset encryption format to obtain the speed limit information. By encrypting the data, misreading and the like can be avoided, further enhancing the reliability of the system.

[0031] According to an exemplary embodiment, the speed limit information includes at least one or more of the following information: Speed limit indication, speed limit value and speed limit release indication.

[0032] 1. Speed limit indication: used to indicate that the vehicle needs to enter the speed limit driving state. At this time, if the vehicle is in the non-speed limit state, the speed limit is activated; if the speed limit state is already activated, the speed limit indication received again can be ignored, and the acquisition and / or analysis of the new speed limit value can also be triggered according to the speed limit indication.

[0033] 2. Speed limit value: used to indicate the degree of restriction on vehicle speed. When the target speed indicated by the pedal signal exceeds the speed limit value, a speed control signal is generated according to the speed limit value to control the vehicle speed.

[0034] According to an exemplary embodiment, the speed limit value may indicate an acceleration value, and accordingly, the pedal signal indicates an acceleration value obtained according to the user's operation of the pedal. Different postures of the pedal correspond to different voltage signals, and different voltage signals are obtained according to the user's operation of stepping on or releasing the pedal to indicate different acceleration values.

[0035] 3. Speed limit release indication: used to indicate that the vehicle has left the speed limit driving state. At this time, if the vehicle is in the speed limit state, the speed limit can be terminated according to the speed limit release indication; it can also be further combined with the pedal signal, and the speed limit can be terminated when the pedal signal is released and the speed limit release indication is received. If the vehicle is not in the speed limit state, the vehicle can ignore the speed limit release indication after receiving the speed limit release indication, and the vehicle continues to operate under normal conditions.

[0036] According to an exemplary embodiment, two operating modes, namely, a speed limit mode and a non-speed limit mode, can be set for the vehicle. When receiving speed limit information including a speed limit indication and / or a speed limit value, the speed limit mode is activated; when receiving speed limit information including a speed limit release indication, the non-speed limit mode is activated.

[0037] The second data processing unit 102 is used to intercept a pedal signal generated by a pedal of the vehicle and send the pedal signal to the speed limit controller 103 .

[0038] The speed limit controller 103 is connected to a vehicle controller of the vehicle, and is used to receive the speed limit information sent by the first data processing unit 101, and generate and send a speed control signal to the vehicle controller according to the speed limit information.

[0039] When speed limit is required, the speed limit controller 103 generates a speed control signal indicating speed limit and sends the speed control signal to the vehicle controller; when the speed limit is lifted, the speed limit controller 103 generates a speed control signal indicating the target speed indicated by the user and sends the speed control signal to the vehicle controller.

[0040] The vehicle controller 103 may be an Electronic Control Unit (ECU for short).

[0041] Furthermore, there is a communication connection between the first data processing unit 101 and the electronic tag, and the speed limit information carried in the electronic tag is obtained through the communication connection. According to an exemplary embodiment, the communication connection is a wireless link connection, and the electronic tag is an Ultra-High Frequency Radio Frequency Identification (UHFRFID) tag, which has the function of reflecting electromagnetic wave signals and returning the data stored on the tag. The UHF RFID tag has a unique identification code (Electronic Product Code, EPC for short). The speed limit information can be written into the EPC area of the electronic tag, and the first data processing unit 101 obtains the speed limit information by reading the EPC area of the electronic tag.

[0042] According to an exemplary embodiment, the first data processing unit 101 includes a reader / writer or a reader, and the reader / writer or the reader can obtain the data on the electronic tag through the communication connection with the electronic tag.

[0043] By means of the first data processing unit 101 arranged on the vehicle, the speed limit information in the passing electronic tags is obtained in real time. At the same time, the second data processing unit 102 intercepts the pedal signal. When speed limit is required, the limit controller 103 executes speed limit and generates a speed control signal conforming to the speed limit information. When speed limit is not required, the pedal signal is transparently transmitted or a speed indication information consistent with the pedal signal is generated, and the vehicle is controlled according to the speed limit information, thus realizing an efficient and reliable speed limit scheme for engineering vehicles.

[0044] An exemplary embodiment of the present disclosure further provides a vehicle speed control system, as Figure 2 shown, including a vehicle controller 201 and the vehicle speed control device 202 provided by the embodiment of the present disclosure.

[0045] The vehicle speed control device 202 is configured to establish a wireless communication connection with an electronic tag and obtain speed limit information carried in the electronic tag through the wireless communication connection, intercept a pedal signal generated by a pedal of the vehicle, and send the pedal signal to the speed limit controller. According to the speed limit information and the pedal signal, a speed control signal is generated and sent to the vehicle controller.

[0046] The vehicle controller 201 adjusts the vehicle driving speed according to the speed control signal. According to an exemplary embodiment, the speed control signal is a voltage signal, and the currently adopted speed or acceleration can be obtained according to the speed control signal.

[0047] Furthermore, the vehicle control system further includes a pedal 203.

[0048] When the pedal 203 detects an operation of the user stepping on or releasing it, a pedal signal is generated. The vehicle speed control device 202 is connected between the pedal 203 and the vehicle controller 201, intercepts the pedal signal that would otherwise be directly output from the pedal 203 to the vehicle controller 201, generates a new speed control signal according to the speed limit information, and sends it to the vehicle controller. The vehicle speed control device 202 can be connected between the pedals 203 and the vehicle controllers of different vehicles, providing a general speed limit solution, effectively controlling the implementation cost while ensuring driving safety.

[0049] An exemplary embodiment of the present disclosure further provides a vehicle management system, as Figure 3 shown, including at least one vehicle speed control device 301 provided by the embodiments of the present disclosure and at least one electronic tag 302, and the electronic tag 302 is arranged at different geographical locations.

[0050] The vehicle speed control device 301 is configured to discover and obtain the speed limit information carried in the electronic tag 302 during the movement of the vehicle, and generate and send a speed control signal to the vehicle controller according to the speed limit information.

[0051] The vehicle speed control device 301 is arranged in the vehicle control system. According to an exemplary embodiment, it can be arranged between the pedal and the vehicle controller to intercept the pedal signal, generate a speed control signal after speed limit processing, and send it to the vehicle controller.

[0052] The vehicle control device 302 is further configured to intercept a pedal signal generated by a pedal of the vehicle, and generate and send a speed control signal to the vehicle controller according to the speed limit information and the pedal signal.

[0053] An exemplary embodiment of the present disclosure further provides a vehicle speed control method, which is applicable to the vehicle speed control device provided by the embodiments of the present disclosure. The process of implementing vehicle speed control using this method is as Figure 4 shown and includes: Step 401: During the movement of the vehicle, obtain speed limit information from the discovered electronic tags.

[0054] In this step, during the movement of the vehicle, the vehicle speed control device detects along the way to discover electronic tags. After discovering the electronic tags, obtain the data in the electronic tags, such as speed limit information.

[0055] According to an exemplary embodiment, the speed limit information in the electronic tag is encrypted by a preset encryption format. The data obtained by the vehicle speed control device needs to be decrypted and parsed according to the preset encryption format, and the speed limit information can be obtained after successful decryption, avoiding system errors caused by misreading irrelevant electronic tags.

[0056] According to an exemplary embodiment, the speed limit information includes a limit speed value, which can be a voltage signal, an indication speed value or an acceleration value.

[0057] Step 402: Generate a speed control signal according to the speed limit information and send it to the vehicle controller of the vehicle.

[0058] In this step, the vehicle speed control device further generates a speed control signal according to the obtained speed limit information and sends the speed control signal to the vehicle controller to control the speed of the vehicle.

[0059] When the vehicle controller performs speed limit control according to the speed control signal, it can adopt a method of first significantly reducing the speed and then slowly reducing the speed according to the current output curve of the pedal, avoiding the impact on the driving experience and hardware loss caused by sudden deceleration.

[0060] An exemplary embodiment of the present disclosure further provides a vehicle speed control method. The process of completing the vehicle speed control using this method is as Figure 5 shown and includes: Step 501: During the movement of the vehicle, obtain speed limit information from the discovered electronic tags.

[0061] In this step, during the movement of the vehicle, the vehicle speed control device detects along the way to discover electronic tags. After discovering the electronic tags, obtain the data in the electronic tags, such as speed limit information.

[0062] According to an exemplary embodiment, the speed limit information in the electronic tag is encrypted in a preset encryption format. The data obtained by the vehicle speed control device needs to be decrypted and parsed according to the preset encryption format, and the speed limit information is obtained after successful decryption, thereby avoiding system errors introduced by misreading irrelevant electronic tags.

[0063] The speed limit information is encrypted using a preset encryption format. In this step, data is obtained from the discovered electronic tag; then, the data is parsed according to the preset encryption format to obtain at least one set of speed limit information. According to an exemplary embodiment, the data obtained from the electronic tag may include one or more sets of speed limit information.

[0064] Different speed limit information can be effective according to different conditions. For example, a link is established between the speed limit information and the vehicle model, different speed limit information corresponds to different vehicle models, and different speed limit information is encrypted using different encryption formats; or different speed limit information corresponds to different time conditions, and the corresponding speed limit information is used according to the time condition matched by the current time.

[0065] According to an exemplary embodiment, the speed limit information includes a speed limit value, which may be a voltage signal indicating a speed value or an acceleration value.

[0066] When configuring an electronic label, the speed limit information can be encrypted according to a preset encryption format and then written into the electronic label.

[0067] Step 502: intercepting a pedal signal generated by a pedal of the vehicle.

[0068] In this step, when the vehicle speed control device detects the pedal signal generated by the pedal, it intercepts it and does not directly transmit it to the vehicle controller. Instead, it analyzes the target speed indicated by the pedal signal to determine whether speed limit processing is required.

[0069] It should be noted that there is no strict time sequence between step 501 and step 502. The pedal signal is generated according to the user operation. After the speed limit information is obtained, the speed limit processing is performed according to the speed limit information combined with the pedal signal. When speed limit is required, a speed control signal indicating the speed limit value is generated; when speed limit is not required, the pedal signal is transparently transmitted as the speed control signal.

[0070] Step 503: Generate a speed control signal according to the speed limit information and / or the pedal signal and send it to a vehicle controller of the vehicle.

[0071] According to an exemplary embodiment, the speed limit information includes at least one or more of the following information: Speed limit indication, speed limit value and speed limit release indication.

[0072] 1. Speed limit indication: used to indicate that the vehicle needs to enter the speed limit driving state. At this time, if the vehicle is in the non-speed limit state, the speed limit is activated; if the speed limit state is already activated, the speed limit indication received again can be ignored, and the acquisition and / or analysis of the new speed limit value can also be triggered according to the speed limit indication.

[0073] 2. Speed limit value: used to indicate the degree of restriction on vehicle speed. When the target speed indicated by the pedal signal exceeds the speed limit value, a speed control signal is generated according to the speed limit value to control the speed of the vehicle. The pedal signal can be a voltage signal, and the speed limit value can be a voltage value.

[0074] According to an exemplary embodiment, the speed limit value may indicate an acceleration value, and accordingly, the pedal signal indicates an acceleration value obtained according to the user's operation of the pedal. Different postures of the pedal correspond to different voltage signals, and different voltage signals are obtained according to the user's operation of stepping on or releasing the pedal to indicate different acceleration values.

[0075] 4. Speed limit release indication: used to indicate that the vehicle has left the speed limit driving state. At this time, if the vehicle is in the speed limit state, the speed limit can be terminated according to the speed limit release indication; it can also be further combined with the pedal signal, and the speed limit can be terminated when the pedal signal is released and the speed limit release indication is received. If the vehicle is not in the speed limit state, the vehicle can ignore the speed limit release indication after receiving the speed limit release indication, and the vehicle continues to operate under normal conditions.

[0076] According to an exemplary embodiment, two operating modes, namely, a speed limit mode and a non-speed limit mode, can be set for the vehicle. When receiving speed limit information including a speed limit indication and / or a speed limit value, the speed limit mode is activated; when receiving speed limit information including a speed limit release indication, the non-speed limit mode is activated.

[0077] This step specifically includes: 1. The speed limit information includes a speed limit indication and / or a speed limit value, and the pedal signal indicates the target speed of the vehicle. (1) When the target speed exceeds the speed limit value, the speed control signal is generated and sent to the vehicle controller, and the speed control signal carries the speed limit value to instruct the vehicle controller to control the vehicle speed according to the speed limit value. In this case, the user steps on the pedal, and the pedal generates a pedal signal according to the user's stepping operation. The pedal signal is used to determine whether the target speed exceeds the speed limit value, and when the target speed exceeds the speed limit value, the speed control signal is generated according to the speed limit value.

[0078] (2) When the target speed does not exceed the speed limit value, the speed control signal is generated and sent to the vehicle controller, and the target speed is carried in the speed control signal to instruct the vehicle controller to control the vehicle speed according to the target speed. In this case, since the target speed indicated by the pedal signal does not exceed the speed limit value, it is determined that speed limit processing is not required, and the pedal signal is used as the speed control signal, and the pedal signal is transparently transmitted without speed limit intervention.

[0079] 2. The speed limit information includes an indication of releasing the speed limit, and the pedal signal indicates that the pedal is released.

[0080] When the pedal signal indicates that the pedal is released, the speed limit is released, and the pedal signal is transparently transmitted to the vehicle controller as a speed control signal. After obtaining the speed limit information including the speed limit release indication, it indicates that the speed limit operation can be released. To further improve safety, the speed limit is released when the pedal is detected to be released.

[0081] An exemplary embodiment of the present disclosure also provides a vehicle speed control method, which uses the method to execute a speed limit process when the vehicle is turned off and restarted. Figure 6 As shown, including: Step 601: When the vehicle is started, obtain the speed limit information before the vehicle is turned off.

[0082] In this step, when the vehicle is started, the running state of the vehicle before the engine is turned off is obtained, including the speed limit information executed before the engine is turned off. In this way, it can be ensured that the last speed limit processing method is continued when the vehicle is started, and there will be no sudden and large changes in speed, thereby ensuring driving safety.

[0083] Step 602: Generate and send a speed control signal to a vehicle controller of the vehicle according to the speed limit information.

[0084] In this step, a speed control signal is generated and sent according to the speed limit information. Figure 4 and Figure 5 The principles of the processes shown are the same and will not be repeated here.

[0085] An exemplary embodiment of the present disclosure also provides a vehicle speed control system, the structure of which is as follows: Figure 7 As shown, including: A data processing and operation unit 701, a speed limit controller 702, an electronic controller 703, a pedal 704 and at least one electronic tag 705. The electronic controller 703 may be a vehicle controller for controlling the operation of the vehicle; the data processing and operation unit 701 may include a first data processing unit and a second data processing unit; the electronic tag 705 may specifically be a UHF RFID tag, and the data processing and operation unit 701 reads and writes the EPC area of the electronic tag 705 to obtain the speed limit information.

[0086] Multiple electronic tags 705 can be deployed in different geographical locations of production operation areas such as factories, so as to realize flexible configuration of vehicles in different areas within the same factory; speed control of different models can be realized by controlling the pedals. Through wireless communication links, the data in the electronic tags can be read contactlessly and remotely, and the output of the accelerator pedal can be controlled in combination with the internal algorithm of the speed limit controller to realize speed control of different models, thereby flexibly realizing the limitation of the maximum driving speed of vehicles in different sections or different areas within the factory.

[0087] According to an exemplary embodiment, the operating frequency range of the UHF RFID tag can be configured to be 920 MHz to 925 MHz to perform long-distance reading and writing of electronic tag data, and the detection length can reach 10 meters.

[0088] The data processing and calculation unit obtains speed limit information (such as the speed limit value in the area) by decrypting the data obtained from the electronic tag. The speed limit value is given to the speed limit controller, and the control pedal outputs a maximum voltage value not exceeding the speed limit value, so that the speed of vehicles installed in the area are controlled to travel at a speed / acceleration not higher than the speed limit value.

[0089] The specific process is as follows: 1. Calibration: Get the pedal voltage value corresponding to the vehicle's speed limit, encrypt the value and write it into the electronic tag.

[0090] 2. Flexibly distribute electronic tags at the entrances of areas where speed limits are required or on both sides of the road where vehicles are traveling.

[0091] 3. When the vehicle passes different electronic tags, the system will inform the driver through a buzzer prompt that the electronic tag has been identified, and at the same time control the maximum output voltage value of the vehicle's accelerator pedal. Based on the pedal signal generated by the pedal and the speed limit information in the electronic tag, a speed control signal can be generated and transmitted to the vehicle controller to control the pedal output.

[0092] 4. When the vehicle passes a specific electronic tag for lifting the speed limit, obtains the speed limit information carrying the speed limit lifting instruction and releases the pedal, the speed limit of the vehicle is lifted.

[0093] 5. Every time the vehicle is turned off, the system will record the current operating status, including the speed limit value, speed limit status / mode, etc. The next time the vehicle is started, it will still drive according to the speed limit status before the engine is turned off.

[0094] Through the data processing and calculation unit with a card reader or reader / writer, the pre-calibrated electronic tag is scanned, the tag data is obtained and decrypted to obtain the speed limit information. When the speed limit information indicates the speed limit, the maximum output voltage value of the pedal is limited according to the speed limit value, so that the speed control signal received by the vehicle controller does not exceed the speed limit value; when the speed limit is released, the speed limit information indicating the release of the speed limit is obtained by scanning the specific electronic tag data, and the pedal is released to release the speed limit of the vehicle. Through the flexible layout of different tags, flexible control of different speed areas is achieved. By controlling the accelerator pedal, it is adapted to all models.

[0095] An exemplary embodiment of the present disclosure also provides a vehicle speed control device, the structure of which is as follows: Figure 8 As shown, including: The speed limit indication acquisition module 801 is used to acquire speed limit information from the electronic tags found during the movement of the vehicle.

[0096] The signal interception module 802 is used to intercept a pedal signal generated by a pedal of the vehicle, wherein the pedal signal indicates a target speed of the vehicle.

[0097] The speed control module 803 is used to generate and send a speed control signal to a vehicle controller of the vehicle according to the speed limit information and / or the pedal signal.

[0098] Furthermore, the structure of the speed control module 803 is as follows: Figure 9 As shown, including: The first signal transmission module 901 is used to generate and send the speed control signal to the vehicle controller when the speed limit information includes speed limit indication information and / or a speed limit value and the target speed exceeds the speed limit value. The speed control signal carries the speed limit value to instruct the vehicle controller to control the vehicle speed according to the speed limit value.

[0099] The second signal transmission module 902 is used to generate and send the speed control signal to the vehicle controller when the speed limit information includes speed limit indication information and / or a speed limit value and the target speed does not exceed the speed limit value. The speed control signal carries the target speed to instruct the vehicle controller to control the vehicle speed according to the target speed.

[0100] The third signal transmission module 903 is configured to cancel the speed limit and transparently transmit the pedal signal to the vehicle controller when the speed limit information includes a speed limit cancellation indication and the pedal signal indicates that the pedal is released.

[0101] The above vehicle speed control device can be integrated into a processing module such as a speed limit controller or a vehicle controller, and the corresponding functions are implemented by the processing module.

[0102] Regarding the device in the above embodiments, the specific manners in which each module performs operations have been described in detail in the embodiments related to the method, and will not be elaborated here.

[0103] Embodiments of the present disclosure provide a vehicle speed control method, device, equipment, system, and vehicle management system. The first data processing unit discovers and acquires data from the electronic tag in real time to obtain speed limit information. The second data processing unit intercepts the pedal signal generated by the vehicle's pedal, sends the pedal signal to the speed limit controller, and then the data processing module generates a speed control signal based on the speed limit information and the pedal signal and sends it to the vehicle controller to achieve control of the vehicle's driving speed. Through an easily deployable and low-cost electronic tag and a vehicle speed control device that adapts to a variety of different vehicle models, an efficient and reliable engineering vehicle speed limit solution is realized, precisely managing the geographical range, speed value, etc. of vehicle speed limits, taking into account production efficiency while ensuring production safety, and solving the problem of the lack of a speed management mechanism for different engineering vehicles.

[0104] Define the encryption format and encrypt the data of the electronic tag to avoid misreading the data when scanning other electronic tags, which may cause system errors, and further ensure the stability of the system.

[0105] According to the current output curve of the pedal, considering that it usually takes some time to limit the speed to the target speed when the speed is relatively fast under normal circumstances, a method of first significantly reducing the speed and then slowly reducing the speed is adopted to ensure the driving experience during the speed reduction process and avoid possible hardware losses caused by emergency braking. By determining the speed limit requirement and generating the speed control signal through the pedal signal, it has the general adaptability for electric and internal combustion vehicle models.

[0106] When exiting the speed limit mode, the pedal needs to be actively released to cancel the speed limit, avoiding sudden speed increase and potential safety hazards, and further ensuring safety.

[0107] Deploy different speed limit tags in different regions or roads to achieve speed limits in different regions. The content of the electronic tag supports customization. According to the deployment and usage scenarios of the electronic tag, the data of the electronic tag can be repeatedly modified to achieve flexible configuration and adapt to different speed limit occasions.

[0108] Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. Whether such a function is implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art can use various methods to implement the described function for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of the present application.

[0109] In addition, the word "exemplary" is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be understood as being advantageous compared to other aspects or designs. Instead, the use of the word exemplary is intended to present concepts in a concrete manner. As used herein, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or". That is, unless otherwise specified or clear from the context, "X applies A or B" is intended to mean any arrangement in a natural inclusive arrangement. That is, if X applies A; X applies B; or X applies both A and B, then "X applies A or B" is satisfied in any of the foregoing instances. Additionally, unless otherwise specified or clear from the context indicating a singular form, the articles "a" and "an" as used in this application and the appended claims are generally understood to mean "one or more".

[0110] Similarly, although the present disclosure has been shown and described with respect to one or more implementations, those skilled in the art will envision equivalent variations and modifications after reading and understanding this specification and the drawings. The present disclosure includes all such modifications and variations and is limited only by the scope of the claims. Specifically with respect to the various functions performed by the components (e.g., elements, resources, etc.) described above, unless otherwise indicated, the terms used to describe such components are intended to correspond to any component (functionally equivalent) that performs the specific function of the described component, even if not structurally equivalent to the disclosed structure. Additionally, although a particular feature of the present disclosure may have been disclosed with respect to only one of several implementations, such a feature may be combined with one or more other features of other implementations as may be desired and advantageous for any given or particular application. Further, with respect to the use of "comprises", "has", "includes", "contains", or variations thereof in the detailed description or claims, such terms are intended to be inclusive in a manner similar to the term "includes".

[0111] Other embodiments of the present disclosure will be readily apparent to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common general knowledge or conventional technical means in the technical field not disclosed herein. The specification and examples are only to be considered as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0112] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A vehicle speed control device, characterized in that, include: A first data processing unit, a second data processing unit and a speed limit controller; The first data processing unit is used to establish a wireless communication connection with the electronic tag, obtain the speed limit information carried in the electronic tag through the wireless communication connection, and send the speed limit information to the speed limit controller; The second data processing unit is used to intercept a pedal signal generated by a pedal of the vehicle and send the pedal signal to the speed limit controller; The speed limit controller is connected to a vehicle controller of the vehicle, and is used to receive the speed limit information sent by the first data processing unit and the pedal signal sent by the second data processing unit, and generate and send the speed control signal to the vehicle controller according to the speed limit information and the pedal signal.

2. A vehicle speed control system, characterized in that, comprising a vehicle controller and the vehicle speed control device as claimed in claim 1; The vehicle speed control device is used to establish a wireless communication connection with the electronic tag and obtain the speed limit information carried in the electronic tag through the wireless communication connection, intercept the pedal signal generated by the vehicle's pedal and send the pedal signal to the speed limit controller, and generate and send the speed control signal to the vehicle controller based on the speed limit information and the pedal signal.

3. A vehicle management system, characterized in that, comprising at least one vehicle speed control device as claimed in claim 1 and at least one electronic tag, wherein the at least one electronic tag is arranged at different geographical locations; The vehicle speed control device is used to establish a wireless communication connection with the electronic tag and obtain the speed limit information carried in the electronic tag through the wireless communication connection, intercept the pedal signal generated by the vehicle's pedal and send the pedal signal to the speed limit controller, and generate and send the speed control signal to the vehicle controller based on the speed limit information and the pedal signal.

4. A vehicle speed control method, characterized in that, Applicable to the vehicle speed control device as claimed in claim 1, the method comprising: When the vehicle is moving, the speed limit information is obtained from the electronic tags found; intercepting a pedal signal generated by a pedal of the vehicle; A speed control signal is generated according to the speed limit information and / or the pedal signal and sent to a vehicle controller of the vehicle.

5. The vehicle speed control method according to claim 4, wherein The speed limit information includes a speed limit indication and / or a speed limit value, the pedal signal indicates a target speed of the vehicle, and the step of generating and sending a speed control signal to a vehicle controller of the vehicle according to the speed limit information includes: In the case where the target speed exceeds the speed limit value, generating and sending the speed control signal to the vehicle controller, wherein the speed control signal carries the speed limit value, so as to instruct the vehicle controller to control the vehicle speed according to the speed limit value; In a case where the target speed does not exceed the speed limit value, the speed control signal is generated and sent to the vehicle controller, wherein the speed control signal carries the target speed to instruct the vehicle controller to control the vehicle speed according to the target speed.

6. The vehicle speed control method according to claim 4, wherein The speed limit information includes a speed limit release indication, the pedal signal indicates that the pedal is released, and the step of generating and sending a speed control signal to a vehicle controller of the vehicle according to the speed limit information includes: When the pedal signal indicates that the pedal is released, the speed limit is lifted and the pedal signal is transparently transmitted to the vehicle controller.

7. The vehicle speed control method according to claim 4, characterized in that, The speed limit information is encrypted using a preset encryption format. The step of obtaining speed limit information from the self-discovered electronic tag includes: Obtaining data from the self-discovered electronic tag; Parsing the data according to the preset encryption format to obtain at least one set of speed limit information.

8. The vehicle speed control method according to claim 4, characterized in that, The method further includes: When the vehicle starts, obtaining the speed limit information before the vehicle shuts off, and generating and sending a speed control signal to the vehicle controller of the vehicle according to the speed limit information.

9. A vehicle speed control device, characterized in that, Applicable to the vehicle speed control device as described in claim 1, the device includes: A speed limit information acquisition module for obtaining speed limit information from a self-discovered electronic tag during vehicle movement; A pedal signal acquisition module for intercepting the pedal signal generated by the pedal of the vehicle; A speed control module for generating and sending a speed control signal to the vehicle controller of the vehicle according to the speed limit information and / or the pedal signal.

10. The vehicle speed control device according to claim 9, characterized in that, The speed control module includes: A first signal transmission module for generating and sending the speed control signal to the vehicle controller when the speed limit information includes speed limit indication information and / or a limit speed value, and the target speed exceeds the limit speed value, and carrying the limit speed value in the speed control signal to instruct the vehicle controller to control the vehicle speed according to the limit speed value; A second signal transmission module for generating and sending the speed control signal to the vehicle controller when the speed limit information includes speed limit indication information and / or a limit speed value, and the target speed does not exceed the limit speed value, and carrying the target speed in the speed control signal to instruct the vehicle controller to control the vehicle speed according to the target speed; A third signal transmission module for lifting the speed limit and transparently transmitting the pedal signal to the vehicle controller when the speed limit information includes a speed limit release indication and the pedal signal indicates that the pedal is released.

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