Electronic warning sign, vehicle control system, method and vehicle
By setting up electronic warning signs on the rear side of the vehicle and generating lighting instructions based on vehicle status and environmental data, the problem of delay and forgetting of manually placing triangle warning signs is solved, improving warning efficiency and reducing costs.
Patent Information
- Application Number
- CN202411688759.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-04-08
AI Technical Summary
In the event of a vehicle failure or accident, manually placing a triangle warning sign may lead to delay or forgetting, leading to traffic safety hazards, especially in the application of driverless vehicles.
An electronic warning sign is designed, arranged on the rear side of the vehicle, including a light emitting unit, and generates a lighting command based on the vehicle status data and environmental data through the controller, and controls the light emitting unit to light it to perform a vehicle status warning.
It improves warning efficiency, avoids the delay and forgetfulness of manually placing warning signs, reduces labor costs, and hides electronic warning signs when the vehicle is driving normally to avoid false warnings.
Smart Images
Figure CN119773627A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of vehicle technology, and more particularly to an electronic warning sign, a vehicle control system, a method and a vehicle. Background Art
[0002] When a vehicle breaks down or has a traffic accident on the road and needs to stop to troubleshoot or deal with the accident, the driver should turn on the hazard warning lights in time and set up warning signs in the direction of the oncoming vehicle to expand the warning distance and prevent secondary accidents. The main purpose of placing a triangular warning sign is to remind other road users to pay attention to traffic accidents or faulty vehicles ahead, so as to take deceleration or avoidance measures to prevent secondary accidents. As a passive safety device, the triangular warning sign can provide sufficient warning at night or in bad weather conditions to ensure the safety of road users. However, manual placement of triangular warning signs may lead to untimely placement or forgetting, and with the application of unmanned vehicles, it takes a certain amount of time for vehicle operation and maintenance personnel to arrive at the scene, and it is even more impossible to place the triangular warning sign light safety reminder device in time. In such cases, traffic may be obstructed and there are certain safety hazards. Summary of the invention
[0003] In view of this, an embodiment of the present invention provides an electronic warning sign, a vehicle control system, a method and a vehicle, so as to control the lighting of an electronic warning sign installed on the vehicle when a situation occurs on the road to provide a vehicle status warning, thereby avoiding the situation where only the vehicle warning lights are ignored or misunderstood. At the same time, compared with manually placing warning signs, the warning efficiency is improved and the labor cost is reduced.
[0004] In a first aspect, an embodiment of the present invention provides an electronic warning sign, which is arranged on the rear side of a vehicle. The electronic warning sign includes a light-emitting unit, which is controlled to light up in response to a lighting command to prompt traffic participants within a predetermined range of the vehicle to stay away from the location of the vehicle; the electronic warning sign is made of a material that matches the shape of the rear side of the vehicle, so that the electronic warning sign in an off state is relatively hidden.
[0005] Furthermore, the electronic warning sign is made of transparent material.
[0006] Furthermore, the electronic warning sign is arranged on the rear windshield of the vehicle.
[0007] Furthermore, the electronic warning sign includes a motor connected to the light-emitting unit, the light-emitting unit is rotatably arranged in the electronic warning sign, and the motor is controlled by the lighting instruction to control the rotation of the light-emitting unit to adjust the irradiation direction.
[0008] Furthermore, the electronic warning sign is connected to a corresponding motor, and the electronic warning sign is rotatably arranged on the rear side of the vehicle. The motor is controlled by the lighting instruction to control the rotation of the electronic warning sign to adjust the irradiation direction.
[0009] In a second aspect, an embodiment of the present invention provides a vehicle control system, the system comprising:
[0010] An electronic warning sign as described above;
[0011] The controller is configured to control the lighting of the light-emitting unit according to a lighting instruction to prompt traffic participants within a predetermined range of the vehicle to stay away from the location of the vehicle. The lighting instruction is generated based on vehicle information, and the vehicle information includes vehicle status data, vehicle environment data, collision data, and / or vehicle signal data.
[0012] Further, the lighting instruction includes lighting parameters, and the controller is configured to control the light-emitting unit to light up based on the lighting parameters, and the lighting parameters include light color, brightness, flickering frequency and / or illumination direction.
[0013] Furthermore, the controller is configured to determine the reason for lighting up the electronic warning sign based on the vehicle information, and determine the lighting parameters based on the reason and the vehicle environment data, the reason including one or more combinations of the following: parking due to abnormal vehicle status, parking due to obstacles, emergency braking due to changes in road conditions, parking at a collision, parking at a station, the double flash switch being activated, and a remote lighting signal.
[0014] Furthermore, the controller is also configured to detect the working status of the electronic warning sign, and in response to the failure of the electronic warning sign to light up, reset and restart the electronic warning sign, and in response to the number of restarts reaching a predetermined number, generate fault information and report the fault information to the operation and maintenance end.
[0015] Furthermore, the controller is also configured to control the electronic warning sign by driving a relay, or by generating a PWM signal, or by controlling the electronic warning sign through a predetermined communication protocol, or by hard wiring.
[0016] Furthermore, the flashing frequency of the electronic warning sign is determined according to the double flash frequency of the vehicle.
[0017] In a third aspect, an embodiment of the present invention provides a vehicle control method applicable to a vehicle control system, wherein the vehicle control system includes an electronic warning sign located at the rear side of the vehicle, the electronic warning sign includes a light-emitting unit, and the electronic warning sign is made of a material matching the shape of the rear side of the vehicle so that the electronic warning sign in an extinguished state is relatively hidden. The method includes:
[0018] Acquiring vehicle information, the vehicle information including vehicle status data, vehicle environment data, collision data, and / or vehicle signal data;
[0019] Generate a lighting instruction according to the vehicle information;
[0020] The light-emitting unit is controlled to light up according to the lighting instruction to prompt traffic participants within a predetermined range of the vehicle to stay away from the location of the vehicle.
[0021] In a fourth aspect, an embodiment of the present invention provides a vehicle, comprising the vehicle control system as described above.
[0022] The vehicle control system of the embodiment of the present invention includes an electronic warning sign and a controller which are arranged at the rear side of the vehicle and include a light-emitting unit, wherein the electronic warning sign is made of a material matching the shape of the rear side of the vehicle so that the electronic warning sign in an off state is relatively hidden, and the controller is used to generate a lighting instruction according to the vehicle information, and control the light-emitting unit to light up based on the lighting instruction to prompt traffic participants within a predetermined range of the vehicle to stay away from the location of the vehicle. As a result, the electronic warning sign of the embodiment of the present invention is relatively hidden when the vehicle is driving normally to avoid false warnings, and is controlled to light up when a condition occurs in the vehicle to warn of the vehicle status, thereby avoiding the situation where only the vehicle warning light is ignored or misunderstood. At the same time, compared with manually placing warning signs, the warning efficiency is improved and the labor cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
[0024] Figure 1 and Figure 2 is a partial schematic diagram of a vehicle according to an embodiment of the present invention;
[0025] Figure 3 is a schematic diagram of a vehicle control system according to an embodiment of the present invention;
[0026] Figure 4 is a flow chart of a vehicle control method according to an embodiment of the present invention;
[0027] Figure 5 Schematic diagram of a vehicle control process according to an embodiment of the present invention. DETAILED DESCRIPTION
[0028] The present application is described below based on embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, some specific details are described in detail. It is possible for those skilled in the art to fully understand the present application without the description of these details. In order to avoid confusing the essence of the present application, known methods, processes, flows, components and circuits are not described in detail.
[0029] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.
[0030] Unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0031] For ease of explanation, spatially relative terms such as "inside", "outside", "below", "below", "lower", "above", "upper", etc. are used herein to describe the relationship of one element or feature illustrated in the figures to another element or feature. It will be understood that spatially relative terms may be intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figure is turned over, an element described as being "below" or "below" other elements or features will then be positioned as being "above" the other elements or features. Thus, the example term "below" can include both the orientations of above and below. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.
[0032] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".
[0033] In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.
[0034] The solutions described in this specification and in the examples, if they involve the processing of personal information, will be processed on the premise of having a legal basis (such as obtaining the consent of the subject of personal information, or being necessary for the performance of a contract, etc.), and will only be processed within the scope of regulations or agreements. If a user refuses to process personal information other than the necessary information for basic functions, it will not affect the user's use of basic functions.
[0035] Figure 1 and Figure 2 FIG. 1 is a partial schematic diagram of a vehicle according to an embodiment of the present invention. Figure 1 and Figure 2 As shown, the vehicle of this embodiment has a corresponding vehicle controller system, and the vehicle control system includes an electronic warning sign 10 and a controller ( Figure 1 and Figure 2 The electronic warning sign 10 is disposed on the rear side of the vehicle. In this embodiment, the electronic warning sign 10 is disposed on the rear windshield 20 of the vehicle as an example, but it should be understood that the electronic warning sign 10 can be disposed at any position on the rear side of the vehicle, as long as it can be observed by traffic participants in the oncoming direction of the lane where the vehicle is located.
[0036] Further, the electronic warning sign 10 is arranged at the center of the rear windshield 20. However, it should be understood that the electronic warning sign 10 can also be arranged at any position on the rear windshield 20 as required, and the present embodiment does not limit the specific position thereof.
[0037] Furthermore, the electronic warning sign 10 is a triangle composed of a light strip. The light strip includes at least one light-emitting unit. Optionally, the shape of the electronic warning sign 10 is consistent or approximately consistent with the shape of an existing physical triangle warning sign, so that other traffic participants around can understand the warning function of the electronic warning sign 10, thereby ensuring the reliability of the electronic warning sign 10.
[0038] Furthermore, the electronic warning sign 10 may also adopt other standardized shapes or shapes familiar to certain traffic participants that have a warning function, and may also use prompt text composed of light strips as an electronic warning sign. This embodiment does not limit the specific form of the electronic warning sign 10, as long as it can play a warning role and comply with relevant safety regulations.
[0039] in, Figure 1 The electronic warning sign 10 on the vehicle is shown in an off state. In order to prevent other traffic participants from observing the electronic warning sign when the vehicle is in normal driving state and causing corresponding misunderstandings, the electronic warning sign 10 of this embodiment is made of a material that matches the shape of the rear side of the vehicle, so that the electronic warning sign 10 in the off state is relatively hidden, thereby avoiding false warnings and ensuring the reliability of the electronic warning sign.
[0040] Furthermore, if Figure 1 As shown, the electronic warning sign 10 is set on the rear windshield 20. Since the rear windshield 20 is transparent, the electronic warning sign 10 can be made of transparent material so that it is difficult for other traffic participants to notice it when it is in an off state, that is, it is in a hidden state, thereby avoiding false alarms and ensuring the reliability of the electronic warning sign.
[0041] It should be understood that if the electronic warning sign 10 is located at other positions, the electronic warning sign 10 can be made of a material that has the same or similar color as the position where it is set, or it can be made of a transparent material to achieve relative concealment and avoid false alarms.
[0042] Furthermore, the electronic warning sign 10 of the present embodiment can be set on the rear side of the vehicle by pasting or clamping. Optionally, the electronic warning sign 10 maintains a fixed connection or a fixed detachable connection at its setting position, that is, the relative position of the electronic warning sign 10 to the rear windshield 20 remains unchanged after the installation is completed. In another optional implementation, the electronic warning sign 10 can also be controlled to change its relative position to its installation position (such as the rear windshield 20) after the installation is completed. Thus, the vehicle control system can adjust the irradiation direction by controlling the rotation of the electronic warning sign 10, thereby further ensuring that traffic participants in the oncoming direction of the lane where the vehicle is located can observe the electronic warning sign 10.
[0043] Further, Figure 2 The electronic warning sign 10 on the vehicle is shown in an illuminated state. Optionally, the lighting parameters of the electronic warning sign 10 in the illuminated state can be configured according to different vehicle conditions and / or light intensity. The lighting parameters may include luminous color, brightness, flashing frequency and / or illumination direction.
[0044] Further, the luminous color is a color that is greatly different from the color of the installation position of the electronic warning sign 10 and can be easily observed by other traffic participants. It should be understood that different vehicle conditions can be configured with the same or different luminous colors.
[0045] Furthermore, the controller of the present embodiment can determine the distance at which the electronic warning sign 10 in the lit state can be observed by controlling the luminous brightness of the electronic warning sign 10. It should be understood that when the electronic warning sign 10 in the lit state needs to be observed from a long distance, and / or the light intensity is insufficient (for example, in rainy weather, foggy weather, at night, etc.), the luminous brightness of the electronic warning sign 10 is enhanced so that the corresponding traffic participants can observe the electronic warning sign 10 in the lit state at a corresponding distance from the vehicle, thereby achieving a warning effect under different vehicle conditions and different light intensities.
[0046] Furthermore, the present embodiment may configure light flashing frequencies under different vehicle conditions and / or different light intensities to further ensure the warning effect of the electronic warning sign 10 .
[0047] Furthermore, since the angle between the vehicle and the lane line may be large when a situation occurs, the controller of this embodiment can control the illumination direction of the electronic warning sign 10 so that it is consistent or basically consistent with the direction of oncoming vehicles in the lane where the vehicle is located, thereby accurately prompting traffic participants in the lane where the vehicle is located.
[0048] Furthermore, the controller of this embodiment can obtain vehicle information such as vehicle status data, vehicle environment data, collision data, and / or vehicle signal data, and determine whether the electronic warning sign 10 needs to be illuminated based on the current vehicle information. If the electronic warning sign 10 needs to be illuminated, a corresponding lighting instruction is generated, and the light-emitting unit of the electronic warning sign 10 is controlled to light up based on the lighting instruction to prompt traffic participants within the predetermined range of the vehicle to stay away from the location of the vehicle to avoid accidents and ensure road safety.
[0049] Furthermore, the vehicle status data includes the vehicle driving system status and / or the vehicle driving status. The vehicle environment data includes a combination of one or more of the following: weather conditions (such as temperature and humidity, precipitation, wind, fog, etc.), obstacles around the vehicle, road conditions (such as road materials, road conditions, road slope, etc.), lighting conditions (such as daytime, nighttime, etc.), traffic conditions (such as traffic flow, etc.), road types and other topography. Vehicle signal data may include switch signals of the vehicle's double flash lights, lighting signals from remote operation and maintenance, and other messages. Optionally, the vehicle environment data may be determined based on various sensors in the sensor system in the vehicle driving system.
[0050] In an optional implementation, the vehicle driving system state may include the vehicle hardware system state and the vehicle software system state. Further, the vehicle hardware system state may include the state of various hardware in the vehicle, such as the chassis control system state and the sensor system state. Among them, the chassis control system includes a wire control system, a wire control brake and a wire control turn signal system, which execute relevant chassis control instructions to ensure that the vehicle travels along the planned path. The sensor system is used to collect environmental information around the vehicle, and may include various sensor devices (such as laser sensors, visual sensors, temperature and humidity sensors, kinematic sensors, millimeter wave sensors, and / or ultrasonic sensors, etc.). The vehicle software system state may include the state of various software in the vehicle, such as the perception system state, the decision system state and the planning control system state. Among them, the perception system can be used to identify other traffic participants, road traffic signs and passable areas around the vehicle. The decision system can be used for route planning, motion planning and control, etc. The planning control system can be used to accurately control the vehicle according to the information provided by the perception system. It can be seen that the normal operation of each system in the vehicle driving system is the key to ensuring the correct and safe driving of the vehicle. Any abnormality in the system state may cause the vehicle to drive incorrectly or bring certain safety hazards.
[0051] The vehicle driving state may include a stationary state, a starting state, a normal driving state, a deceleration state, a braking state, a reverse state, and / or other special states such as emergency braking, drifting, rollover, etc. It should be understood that this embodiment does not limit the specific classification of the vehicle driving state, which can be configured according to specific road driving regulations and actual conditions.
[0052] The controller in the vehicle control system of this embodiment can control the generation of a lighting command when it detects that the vehicle has stopped or the vehicle has turned on its hazard lights or receives a remote lighting signal, and can control the lighting of an electronic warning sign based on the lighting command to prompt traffic participants within a predetermined range of the vehicle to stay away from the vehicle, thereby ensuring road safety.
[0053] Furthermore, in order to adapt to different weather conditions, such as rainy weather, foggy weather, night and other weather conditions with poor visibility, it is necessary to control and adjust the light color, brightness and / or flashing frequency of the light-emitting unit of the electronic warning sign 10 to ensure that other traffic participants around the vehicle can observe the lit electronic warning sign 10 when they are at a corresponding distance from the vehicle, so as to prevent other traffic participants from getting closer to the vehicle and thus avoid the occurrence of traffic accidents.
[0054] Furthermore, according to corresponding traffic regulations, different vehicle conditions or road types (such as highways and other levels of roads, etc.), the required warning distance and warning degree may also be different. Therefore, it is also necessary to control and adjust the light color, brightness and / or flashing frequency of the light-emitting unit of the electronic warning sign 10 to adapt to the corresponding vehicle conditions or road types.
[0055] Furthermore, in order to avoid unnecessary interference of the electronic warning sign 10 to other lanes, its irradiation direction should be the direction of the oncoming vehicles in the lane where the vehicle is located. However, in real vehicle conditions, the stopping direction of the vehicle is not necessarily relatively parallel to the vehicle, so the controller is also required to control the irradiation direction of the electronic warning sign 10 to ensure the accuracy of the warning direction.
[0056] In an optional implementation, the present embodiment can control the rotation of the light-emitting unit in the electronic warning sign 10 or control the rotation of the electronic warning sign 10 as a whole to adjust its irradiation direction. That is, the present embodiment can install a motor corresponding to the light-emitting unit in the electronic warning sign 10 to control the rotation of the light-emitting unit, thereby controlling and adjusting the irradiation direction of the electronic warning sign 10, or can install a motor corresponding to the electronic warning sign 10 on the vehicle to control the rotation of the electronic warning sign 10 by driving the motor, thereby controlling and adjusting the irradiation direction of the electronic warning sign 10. It should be understood that the installation method of the motor can achieve the adjustment of the irradiation direction, and the present embodiment does not limit the specific installation method.
[0057] Furthermore, the controller in the vehicle control system of the present embodiment can determine the cause of the vehicle condition (i.e., the cause of lighting up the electronic warning sign 10) by detecting vehicle information when it detects that the vehicle is parked or the vehicle is hazard-free or receives a remote lighting signal, and determine and control the lighting parameters of the electronic warning sign 10 based on the cause and the vehicle environment data, so as to generate a lighting instruction based on the determined lighting parameters, and control the electronic warning sign 10 to light up according to the corresponding lighting parameters. Among them, the lighting parameters include luminous color, brightness, flashing frequency and / or irradiation direction. Therefore, the present embodiment can adaptively adjust the lighting parameters of the electronic warning sign 10 to further adapt to different vehicle conditions and surrounding environment information, thereby ensuring the effectiveness of the warning and further ensuring road safety.
[0058] Furthermore, the controller of this embodiment can determine whether the vehicle is currently in a parked state by detecting the vehicle's driving state, and monitor the operating conditions of the vehicle hardware system and the vehicle software system when the vehicle is in a parked state. If any hardware or software in the vehicle hardware system and the vehicle software system is abnormal, it is determined that the reason for lighting up the electronic warning sign 10 is that the vehicle is parked due to an abnormal state.
[0059] Furthermore, the controller of this embodiment can determine whether the vehicle is currently in a parking state based on the vehicle's driving state, and detect the vehicle environmental data when the vehicle is in a parking state to determine whether there are any obstacles around the vehicle that cannot be bypassed. If an obstacle that cannot be bypassed is detected, it is determined that the reason for lighting up the electronic warning sign 10 is that the vehicle is parked due to an obstacle.
[0060] Furthermore, the controller of this embodiment can determine whether the vehicle is currently in a parking state according to the driving state of the vehicle, and detect whether there is a collision signal when the vehicle is in the parking state to determine whether the vehicle has collided. If the vehicle has collided, it is determined that the reason for lighting the electronic warning sign 10 is a collision parking. It should be understood that this embodiment does not limit the collision detection method, and it can adopt the existing or future collision detection method generated in the process of technological development, which will not be described in detail here.
[0061] Furthermore, the controller of this embodiment can determine whether the vehicle is currently in a parked state based on the vehicle's driving state, and detect road information in the vehicle environmental data when the vehicle is in a parked state to determine whether a road state change has occurred (for example, a road state change such as road closure or control due to natural factors such as bad weather or artificial factors such as construction), and when it is determined that a road state change has occurred, determine that the reason for lighting the electronic warning sign 10 is emergency braking due to the road state change.
[0062] Furthermore, the controller of this embodiment can determine whether the vehicle is currently in a parking state based on the vehicle's driving state, and detect whether the vehicle is currently at a station when the vehicle is in a parking state. If the vehicle is currently at a station, it is determined that the reason for lighting up the electronic warning sign 10 is station parking.
[0063] Furthermore, the activation of the double flash switch in the vehicle is often used to alert other traffic participants around. Therefore, the controller of this embodiment can also detect whether the double flash switch of the vehicle is activated, and when the double flash switch of the vehicle is activated, it is determined that the reason for lighting up the electronic warning sign 10 is that the double flash switch is activated.
[0064] In an optional implementation, the flashing frequency of the electronic warning sign 10 is determined according to the double flash frequency of the vehicle. Further, the controller can use the flashing frequency of the double flash of the vehicle to control the flashing of the light-emitting unit in the electronic warning sign 10. In other optional implementations, this embodiment can also adaptively define the flashing frequency of the electronic warning sign under various vehicle conditions.
[0065] Furthermore, if the remote operation and maintenance personnel observe that the vehicle has a problem but the vehicle itself has not lit up the electronic warning sign, a lighting signal can be sent to the vehicle to make the vehicle light up the electronic warning sign. Thus, the controller of this embodiment can also detect whether the vehicle has received the lighting signal, and when receiving the lighting signal, determine that the reason for lighting up the electronic warning sign 10 is the remote lighting signal.
[0066] It should be understood that the specific reasons and determination methods for lighting up the electronic warning sign 10 are merely exemplary, and the present embodiment is not limited thereto. Other vehicle conditions requiring a warning sign may employ the electronic warning sign of the present embodiment.
[0067] In an optional implementation, the controller of this embodiment is configured to detect the working state of the electronic warning sign, and in response to the failure of the electronic warning sign 10 to light up, reset and restart the electronic warning sign 10, and in response to the number of restarts reaching a predetermined number of times, generate fault information, and report the fault information to the operation and maintenance end. Thus, this embodiment can notify the operation and maintenance end when a control failure occurs in the vehicle control system, so that the operation and maintenance end can remotely control the vehicle or dispatch an operation and maintenance task to the terminal of the corresponding operation and maintenance personnel, so as to handle the vehicle condition as timely as possible, further ensuring road safety.
[0068] Furthermore, the controller is also configured to control the electronic warning sign 10 to turn off after the vehicle condition processing is completed.
[0069] In an optional implementation, the controller is further configured to control the electronic warning sign 10 by driving a relay, or by generating a PWM signal, or by a predetermined communication protocol, or by hard-wired control of the electronic warning sign 10. The predetermined communication protocol may be a wired communication protocol such as a LIN (Local Interconnect Network) bus, a CAN (Controller Area Network) bus, a SPI (Serial Peripheral Interface) bus, an IIC (Inter-Integrated Circuit) bus, or a wireless communication protocol such as Bluetooth or Zigbee, and this embodiment does not limit the corresponding communication protocol.
[0070] The vehicle of the embodiment of the present invention has a corresponding vehicle control system, which includes an electronic warning sign and a controller disposed at the rear side of the vehicle and including a light-emitting unit, wherein the electronic warning sign is made of a material matching the shape of the rear side of the vehicle, so that the electronic warning sign in an off state is relatively hidden, and the controller is used to generate a lighting instruction according to vehicle information including vehicle status data, vehicle environment data, collision data, and / or vehicle signal data, and control the light-emitting unit to light up according to the lighting instruction to prompt traffic participants within a predetermined range of the vehicle to stay away from the location of the vehicle. As a result, the electronic warning sign of the embodiment of the present invention is relatively hidden when the vehicle is driving normally to avoid false warnings, and is controlled to light up when the vehicle has a condition to warn the vehicle status, thereby avoiding the situation where only the vehicle warning light is ignored or misunderstood. At the same time, compared with manually placing warning signs, the warning efficiency is improved and the labor cost is reduced.
[0071] Figure 3 FIG. 1 is a schematic diagram of a vehicle control system according to an embodiment of the present invention. Figure 3 As shown, the vehicle control system 3 of this embodiment includes a controller 31 and an electronic warning sign 32 .
[0072] In an optional implementation, the controller 31 controls the electronic warning sign 10 by driving a relay, or controls the electronic warning sign 10 by generating a PWM signal, or controls the electronic warning sign 10 by a predetermined communication protocol, or controls the electronic warning sign 10 by a hard line. The predetermined communication protocol may be a wired communication protocol such as a LIN (Local Interconnect Network) bus, a CAN (Controller Area Network) bus, a SPI (Serial Peripheral Interface) bus, an IIC (Inter-Integrated Circuit) bus, or a wireless communication protocol such as Bluetooth or Zigbee. The present embodiment does not limit the corresponding communication protocol.
[0073] The electronic warning sign 32 is disposed on the rear side of the vehicle. Further, the electronic warning sign 32 is disposed on the rear windshield of the vehicle. Optionally, the electronic warning sign 32 is disposed at the center of the rear windshield. However, it should be understood that the electronic warning sign 32 can be disposed at any position on the rear side of the vehicle, as long as it can be observed by traffic participants in the oncoming direction of the lane where the vehicle is located.
[0074] Furthermore, the electronic warning sign 32 is a triangle composed of a light strip. The light strip includes at least one light-emitting unit. Optionally, the shape of the electronic warning sign 32 is consistent or approximately consistent with the shape of an existing physical triangle warning sign, so that other traffic participants around can understand the warning function of the electronic warning sign 32, thereby ensuring the reliability of the electronic warning sign 32.
[0075] Furthermore, the electronic warning sign 32 may also adopt other standardized shapes or shapes familiar to certain traffic participants that have a warning function, or may adopt prompt text composed of light strips as an electronic warning sign. This embodiment does not limit the specific form of the electronic warning sign 32, as long as it can serve as a warning and comply with relevant safety regulations.
[0076] Furthermore, in order to prevent other traffic participants from observing the electronic warning sign when the vehicle is in a normal driving state and thus causing corresponding misunderstandings, the electronic warning sign 32 of this embodiment is made of a material that matches the appearance of the rear side of the vehicle, so that the electronic warning sign 32 in the extinguished state is relatively hidden, thereby avoiding false warnings and further ensuring the reliability of the electronic warning sign. When the electronic warning sign 32 is set on the rear windshield, since the rear windshield is transparent, the electronic warning sign 32 can be made of transparent materials. It should be understood that if the electronic warning sign 1032 is in other positions, the electronic warning sign 32 can be made of a material that is the same or similar in color to the position where it is set, or it can be made of a transparent material to achieve the effect of relative hiding and avoiding false warnings.
[0077] Further, the electronic warning sign 32 of the present embodiment can be set on the rear side of the vehicle by pasting or clamping. Further, the electronic warning sign 32 is fixedly installed on the vehicle, and the electronic warning sign 32 includes a motor connected to a light-emitting unit, and the light-emitting unit is rotatably set in the electronic warning sign 32. The motor connected to the light-emitting unit is controlled by a corresponding lighting instruction to control the light-emitting unit to rotate so as to adjust the irradiation direction. In another optional implementation, the electronic warning sign 32 is connected to a corresponding motor. The electronic warning sign 32 is rotatably set on the rear side of the vehicle. The motor connected to the electronic warning sign 32 is controlled by a corresponding lighting instruction to control the electronic warning sign 32 to rotate so as to adjust the irradiation direction. As a result, the present embodiment can accurately prompt traffic participants in the lane where the vehicle is located.
[0078] The controller 31 is used to generate a lighting instruction based on vehicle information including vehicle status data, vehicle environment data, collision data, and / or vehicle signal data, and control the lighting of the light-emitting unit according to the lighting instruction to prompt traffic participants within a predetermined range of the vehicle to stay away from the location of the vehicle. Optionally, the lighting parameters of the electronic warning sign 32 in the lit state can be configured according to different vehicle conditions and / or light intensity. The lighting parameters may include light color, brightness, flashing frequency and / or illumination direction. It should be understood that the specific control method of the controller 31 of this embodiment is similar to that of the above embodiment and will not be repeated here.
[0079] The vehicle control system of the embodiment of the present invention includes an electronic warning sign and a controller which are arranged at the rear side of the vehicle and include a light-emitting unit, wherein the electronic warning sign is made of a material matching the shape of the rear side of the vehicle so that the electronic warning sign in an off state is relatively hidden, and the controller is used to generate a lighting instruction according to vehicle information including vehicle status data, vehicle environment data, collision data, and / or vehicle signal data, and control the light-emitting unit to light up according to the lighting instruction to prompt traffic participants within a predetermined range of the vehicle to stay away from the location of the vehicle. As a result, the electronic warning sign of the embodiment of the present invention is relatively hidden when the vehicle is driving normally to avoid false warnings, and is controlled to light up when the vehicle has a condition to warn the vehicle status, thereby avoiding the situation where only the vehicle warning light is ignored or misunderstood. At the same time, compared with manually placing warning signs, the warning efficiency is improved and the labor cost is reduced.
[0080] Figure 4 is a flow chart of a vehicle control method according to an embodiment of the present invention. The vehicle control method according to an embodiment of the present invention is applied to the above-mentioned vehicle control system, such as Figure 4 As shown, the vehicle control method of this embodiment includes the following steps:
[0081] Step S110, obtaining vehicle information. Among them, the vehicle information includes vehicle status data, vehicle environment data, collision data, and / or vehicle signal data. Optionally, the vehicle status data includes the vehicle driving system status and / or the vehicle driving status. Further, the vehicle driving system status may include the vehicle hardware system status and the vehicle software system status. The vehicle hardware system status may include the status of various hardware in the vehicle, such as the chassis control system status and the sensor system status. The vehicle software system status may include the status of various software in the vehicle, such as the perception system status, the decision system status and the planning control system status. The vehicle driving status may include a stationary state, a starting state, a normal driving state, a deceleration state, a braking state, a reversing state, and / or other special states such as sudden braking, drifting, and rollover. The vehicle environment data includes a combination of one or more of the following: weather conditions, obstacles around the vehicle, road conditions, light intensity, traffic conditions, road types and other terrain features. The vehicle signal data may include the switch signal of the vehicle's double flash lights, the lighting signal from the remote operation and maintenance, and other messages. Optionally, the vehicle environment data may be determined based on various sensors in the sensor system in the vehicle driving system.
[0082] Step S120: generating a lighting instruction according to the vehicle information.
[0083] Optionally, when it is detected that the vehicle is stopped or the vehicle is hazard lights are on, or a remote lighting signal is received, the control generates a lighting instruction, and based on the lighting instruction, controls the lighting of the electronic warning sign to prompt traffic participants within a predetermined range of the vehicle to stay away from the vehicle, thereby ensuring road safety.
[0084] Step S130, controlling the light-emitting unit to light up according to the lighting instruction to prompt traffic participants within a predetermined range of the vehicle to stay away from the location of the vehicle.
[0085] Furthermore, when the present embodiment detects that the vehicle is parked or the vehicle is hazard-hitting or a remote lighting signal is received, the cause of the vehicle condition (i.e., the cause of lighting the electronic warning sign) can be determined by detecting vehicle information, and the lighting parameters of the electronic warning sign can be controlled and adjusted according to the cause and the vehicle environment data, so as to generate a lighting instruction based on the determined lighting parameters, and control the electronic warning sign to light up according to the corresponding lighting parameters. The lighting parameters include luminous color, brightness, flashing frequency and / or irradiation direction. Thus, the present embodiment can adaptively adjust the lighting parameters of the electronic warning sign to further adapt to different vehicle conditions and surrounding environment information, thereby ensuring the effectiveness of the warning and further ensuring road safety.
[0086] Further optionally, the reasons for lighting up the electronic warning sign include one or more of the following combinations: parking due to abnormal vehicle status, parking due to obstacles, emergency braking due to changes in road conditions, collision parking, station parking, double flash switch being activated, and remote lighting signal. Therefore, when the present embodiment detects that the vehicle is parked or the vehicle has double flashes or receives a remote lighting signal, it can further determine whether the above vehicle conditions exist to determine whether to control the electronic warning sign to light up. It should be understood that the generation and execution of the lighting instruction of the present embodiment is similar to the method executed by the above controller, and will not be described in detail again.
[0087] The embodiment of the present invention is used to generate a lighting instruction according to vehicle information including vehicle status data, vehicle environment data, collision data, and / or vehicle signal data, and control the lighting of the light-emitting unit according to the lighting instruction to prompt traffic participants within a predetermined range of the vehicle to stay away from the location of the vehicle. Therefore, the embodiment of the present invention can control the lighting of the electronic warning sign set on the vehicle when a situation occurs on the road to warn the vehicle status, avoiding the situation where only the vehicle warning light is ignored or misunderstood. At the same time, compared with manually placing warning signs, the warning efficiency is improved and the labor cost is reduced.
[0088] Figure 5 FIG. 1 is a schematic diagram of a vehicle control process according to an embodiment of the present invention. Figure 5 As shown, the controller 51 of this embodiment obtains vehicle information D including vehicle status data, vehicle environment data, collision data, and / or vehicle signal data, and detects the vehicle information D based on the lighting condition set G to determine whether the vehicle currently meets the corresponding lighting condition. If the vehicle meets the corresponding lighting condition, the corresponding lighting parameter is determined based on the lighting condition satisfied by the vehicle, and then a lighting instruction C is generated, and the lighting instruction C drives the relay, or generates a corresponding PWM signal, or is sent to the electronic warning sign 52 through a predetermined communication protocol or hard line to control the electronic warning sign 52 to light up according to the lighting parameter. The lighting condition set G is also a set of reasons for lighting the warning sign, which may include one or more of the following combinations: parking due to abnormal vehicle status, parking due to obstacles, emergency braking due to changes in road conditions, parking due to collision, parking at a station, double flash switch being activated, and remote lighting signal. It should be understood that the specific control process of this embodiment is similar to the method executed by the above-mentioned controller, and will not be described in detail again.
[0089] The embodiment of the present invention is used to generate a lighting instruction according to vehicle information including vehicle status data, vehicle environment data, collision data, and / or vehicle signal data, and control the lighting of the light-emitting unit according to the lighting instruction to prompt traffic participants within a predetermined range of the vehicle to stay away from the location of the vehicle. Therefore, the embodiment of the present invention can control the lighting of the electronic warning sign set on the vehicle when a situation occurs on the road to warn the vehicle status, avoiding the situation where only the vehicle warning light is ignored or misunderstood. At the same time, compared with manually placing warning signs, the warning efficiency is improved and the labor cost is reduced.
[0090] It should be understood by those skilled in the art that the embodiments of the present application can be provided as methods, devices (controllers). Therefore, the present application can be in the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware.
[0091] The present application is described with reference to the flowcharts of the methods and devices (controllers) according to the embodiments of the present application. It should be understood that each process in the flowchart can be implemented by computer program instructions.
[0092] These computer program instructions may be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device that implements the process Figure 1 A function specified in a process or multiple processes.
[0093] These computer program instructions may also be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce the instructions for implementing the process Figure 1 A device that specifies functions in a process or multiple processes.
[0094] Another embodiment of the present invention relates to a non-volatile storage medium for storing a computer-readable program, wherein the computer-readable program is used for a computer to execute part or all of the above method embodiments.
[0095] That is, those skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by specifying relevant hardware through a program, and the program is stored in a storage medium, including several instructions for a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.
[0096] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An electronic warning sign, characterized in that: The electronic warning sign is arranged on the rear side of the vehicle, and includes a light-emitting unit, which is controlled to light up by a lighting command to prompt traffic participants within a predetermined range of the vehicle to stay away from the location of the vehicle; the electronic warning sign is made of a material that matches the shape of the rear side of the vehicle, so that the electronic warning sign in the off state is relatively hidden.
2. The electronic warning sign according to claim 1, characterized in that: The electronic warning sign is made of transparent material.
3. The electronic warning sign according to claim 1, characterized in that: The electronic warning sign is arranged on the rear windshield of the vehicle.
4. The electronic warning sign according to claim 1, characterized in that: The electronic warning sign includes a motor connected to the light-emitting unit. The light-emitting unit is rotatably arranged in the electronic warning sign. The motor is controlled by the lighting instruction to control the rotation of the light-emitting unit to adjust the irradiation direction.
5. The electronic warning sign according to claim 1, characterized in that: The electronic warning sign is connected to a corresponding motor. The electronic warning sign is rotatably arranged on the rear side of the vehicle. The motor is controlled by the lighting instruction to control the rotation of the electronic warning sign to adjust the irradiation direction.
6. A vehicle control system, characterized in that: The system comprises: The electronic warning sign as claimed in any one of claims 1 to 5; The controller is configured to control the lighting of the light-emitting unit according to a lighting instruction to prompt traffic participants within a predetermined range of the vehicle to stay away from the location of the vehicle. The lighting instruction is generated based on vehicle information, and the vehicle information includes vehicle status data, vehicle environment data, collision data, and / or vehicle signal data.
7. The system according to claim 6, characterized in that The lighting instruction includes lighting parameters, and the controller is configured to control the light-emitting unit to light up based on the lighting parameters, wherein the lighting parameters include light color, brightness, flickering frequency and / or illumination direction.
8. The system according to claim 7, characterized in that The controller is configured to determine the reason for lighting up the electronic warning sign based on the vehicle information, and determine the lighting parameters based on the reason and the vehicle environment data, wherein the reason includes one or more combinations of the following: parking due to abnormal vehicle status, parking due to obstacles, emergency braking due to changes in road conditions, collision parking, station parking, double flash switch being activated, and remote lighting signal.
9. The system according to claim 6, characterized in that The controller is also configured to detect the working status of the electronic warning sign, and in response to the failure of the electronic warning sign to light up, reset and restart the electronic warning sign, and in response to the number of restarts reaching a predetermined number, generate fault information and report the fault information to the operation and maintenance end.
10. The system according to claim 6, characterized in that The controller is further configured to control the electronic warning sign by driving a relay, or by generating a PWM signal, or by controlling the electronic warning sign through a predetermined communication protocol, or by hard wiring.
11. The system according to claim 7, characterized in that The flashing frequency of the electronic warning sign is determined according to the double flash frequency of the vehicle.
12. A vehicle control method, applicable to a vehicle control system, characterized in that: The vehicle control system includes an electronic warning sign located at the rear side of the vehicle, the electronic warning sign includes a light-emitting unit, and the electronic warning sign is made of a material that matches the shape of the rear side of the vehicle so that the electronic warning sign in an extinguished state is relatively hidden. The method includes: Acquiring vehicle information, the vehicle information including vehicle status data, vehicle environment data, collision data, and / or vehicle signal data; Generate a lighting instruction according to the vehicle information; The light-emitting unit is controlled to light up according to the lighting instruction to prompt traffic participants within a predetermined range of the vehicle to stay away from the location of the vehicle.
13. A vehicle, characterized in that: The vehicle comprises a vehicle control system as claimed in any one of claims 6-11.