Vehicle-mounted information display device and display method

Abstract

The invention discloses a vehicle-mounted information display device and method, and the device comprises a housing, and a communication receiving module, a controller and an LED display array which are located in the housing and are connected in sequence. According to the vehicle-mounted information display device and the related display method, information can be actively obtained through the communication receiving module, lightening or content display of the LED display array is controlled, front or rear vehicles and pedestrians are reminded, traffic accidents are avoided, and the safety of the vehicles is improved.

Description

Technical Field

[0001] The present invention relates to the field of automobile safety technology, and more particularly to a vehicle-mounted information display device and a display method. Background Art

[0002] At present, with the acceleration of urbanization and the continuous increase in the number of cars, road traffic safety issues are becoming increasingly prominent.

[0003] However, existing automotive lighting systems are mainly used for lighting and indication, lack active safety, and have defects such as low efficiency in information transmission. For example, existing lighting systems cannot actively alert vehicles ahead, pedestrians, or vehicles changing lanes; they cannot transmit more abundant information to other vehicles, such as vehicle speed, distance between vehicles, road conditions, etc.

[0004] Therefore, how to further improve the automobile lighting system and provide a vehicle-mounted information display device and display method is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In view of this, the present invention provides a vehicle-mounted information display device and a display method, which at least solve some of the technical problems mentioned in the background technology.

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

[0007] Firstly, the present invention discloses a vehicle-mounted information display device, including a housing, and a communication receiving module, a controller and an LED display array which are sequentially connected inside the housing.

[0008] In one embodiment, the vehicle-mounted information display device is installed at the front of the vehicle, and further includes:

[0009] A monitoring module, used to monitor the braking status of the vehicle;

[0010] The sending module is used to send braking status information to the communication receiving module when it detects that the braking state of the vehicle changes from an unbraked state to a braked state, so that the controller can control the LED display array to light up according to the received braking status information.

[0011] Preferably, in the above embodiment, the monitoring module further includes a front road condition monitoring submodule, and the front road condition monitoring submodule is used to monitor the status of pedestrians or non-motor vehicles in front of the vehicle;

[0012] The sending module is used to send the braking state information to the communication receiving module when it is detected that the braking state of the vehicle changes from the unbraking state to the braking state; at the same time, when it is detected that the pedestrian or non-motor vehicle in front of the vehicle is in the starting state, the starting state information is sent to the communication receiving module;

[0013] So that the controller can light up the LED display array according to the received brake status information, and control the LED display array to display safe yielding information based on the start status information.

[0014] In another embodiment, the vehicle-mounted information display device is installed at the rear of the vehicle, and further includes:

[0015] A monitoring module, used to monitor the running status of the rear vehicle, wherein the running status includes the distance between the rear vehicle and the vehicle, the current moving speed of the rear vehicle and the relative speed;

[0016] The sending module is used to send operating status information to the communication receiving module when it is detected that the distance between the rear vehicle and the vehicle reaches a set threshold, so that the controller can control the LED display array to light up and display corresponding data content according to the received operating status information.

[0017] In a third embodiment, the vehicle-mounted information display device is installed at the rear of the vehicle, and further includes:

[0018] The monitoring module is used to monitor the braking status of the vehicle and the running status of the vehicle behind;

[0019] The sending module is used to send braking status information to the communication receiving module when it is detected that the braking status of the vehicle changes from an unbraked state to a braked state; at the same time, when it is detected that the running status of the rear vehicle changes from a normal driving state to a lane changing or overtaking state, the lane changing or overtaking status information is sent to the communication receiving module, so that the controller can light up the LED display array according to the received braking status information, and control the LED display array to display corresponding safe yielding information based on the received lane changing or overtaking status information.

[0020] On the other hand, the present invention discloses a vehicle-mounted information display method using the vehicle-mounted information display device of the first aspect.

[0021] In a specific embodiment, a vehicle information display method, using the vehicle information display device disclosed in the first aspect, comprises the following steps:

[0022] Monitor the braking status of the vehicle;

[0023] When it is detected that the braking state of the vehicle changes from an unbraked state to a braked state, the braking state information is sent to the vehicle information display device installed at the front position of the vehicle, so that the vehicle information display device can control the LED display array to light up according to the received braking state information.

[0024] Furthermore, in the above embodiment, while monitoring the braking state of the vehicle, it also includes monitoring the state of pedestrians or non-motor vehicles in front of the vehicle;

[0025] When it is detected that the pedestrian or non-motor vehicle in front of the vehicle is in the start-up state, the start-up state information is sent to the vehicle information display device installed at the front position of the vehicle;

[0026] So that the vehicle-mounted information display device can light up the LED display array according to the received brake status information, and control the LED display array to display safe yielding information based on the start status information.

[0027] In another specific embodiment, a vehicle information display method, using the vehicle information display device disclosed in the first aspect, comprises the following steps:

[0028] Monitoring the running status of the rear vehicle, including the distance between the rear vehicle and the vehicle, the current moving speed of the rear vehicle, and the relative speed;

[0029] When it is detected that the distance between the rear vehicle and the vehicle reaches a set threshold, the operating status information is sent to the on-board information display device installed at the rear of the vehicle, so that the on-board information display device can control the LED display array to light up and display the corresponding data content according to the received operating status information.

[0030] In a third specific embodiment, a vehicle information display method, using the vehicle information display device disclosed in the first aspect, comprises the following steps:

[0031] Monitor the braking status of the vehicle and the running status of the vehicle behind;

[0032] When the braking state of the vehicle is detected to change from an unbraked state to a braked state, the braking state information is sent to the vehicle-mounted information display device installed at the rear of the vehicle; at the same time, when the running state of the rear vehicle is detected to change from a normal driving state to a lane changing or overtaking state, the lane changing or overtaking state information is sent to the vehicle-mounted information display device;

[0033] So that the vehicle-mounted information display device can light up the LED display array according to the received braking status information, and control the LED display array to display corresponding safe yielding information based on the received lane changing or overtaking status information.

[0034] Furthermore, in the above embodiment, before sending the lane change or overtaking status information to the vehicle-mounted information display device, the following steps are also included:

[0035] According to the running status of the rear vehicle and the current running status of the vehicle, it is judged whether the rear vehicle meets the lane changing or overtaking conditions; and the judgment result is sent to the vehicle-mounted information display device, so that the vehicle-mounted information display device can control the LED display array to display the overtaking information according to the judgment result.

[0036] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a vehicle-mounted information display device and a display method, which have the following beneficial effects:

[0037] The vehicle-mounted information display device disclosed in the present invention can actively obtain information through a communication receiving module and control the lighting of an LED display array or the display of content, thereby reminding vehicles and pedestrians in front or behind to avoid traffic accidents and improve the active safety of the vehicle.

[0038] When the vehicle-mounted information display device disclosed in the present invention is installed at the front of the vehicle, it can be used as a high-mounted brake light arranged in front of the vehicle, and can increase the sense of security of pedestrians in front of the vehicle or vehicles changing lanes in front to a certain extent.

[0039] The vehicle-mounted information display device disclosed in the present invention can judge whether the rear vehicle can complete overtaking according to the received data, and display the corresponding safe yielding information.

[0040] The vehicle-mounted information display device disclosed in the present invention can also display personalized data or information according to user needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0042] Figure 1 This is a schematic diagram of the overall structure of the vehicle-mounted information display device provided by the present invention.

[0043] Figure 2 A schematic diagram of the pin connections of the MAX1473 chip circuit used as a communication receiving module provided in an embodiment of the present invention.

[0044] Figure 3 A schematic diagram of the circuit pin connections of the SP370 chip used as a wireless signal transmission module provided in an embodiment of the present invention.

[0045] Figure 4 A schematic diagram of the shape of a brake light body installed outside a headlight and the installation effect provided by an embodiment of the present invention.

[0046] Figure 5 A schematic flow chart of a vehicle information display method provided by an embodiment of the present invention.

[0047] Figure 6 A schematic flow chart of another vehicle information display method provided by an embodiment of the present invention.

[0048] Figure 7 A schematic flow chart of another vehicle information display method provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] The embodiment of the present invention discloses a vehicle-mounted information display device, which is independent of the original lighting system of the vehicle and exists independently. Figure 1 As shown, it includes a shell, and a communication receiving module, a controller and an LED display array which are connected in sequence inside the shell.

[0051] Example 1

[0052] The present invention is further described below. In a specific application example 1, the vehicle-mounted information display device is installed at the front of the vehicle. At this time, the vehicle-mounted information display device can be used as a high-mounted brake light installed at the front of the vehicle, and the communication receiving module is used to receive a brake status signal.

[0053] The vehicle-mounted information display device is installed at the front of the vehicle, specifically, it can be installed on the outside of the headlight, the outside of the rearview mirror, or above the air intake grille, and any one of these locations can be selected for installation. In other implementation methods, the vehicle-mounted information display device used as a high-mounted brake light can also be installed at all or part of the above locations at the same time. Of course, the vehicle-mounted information display device used as a high-mounted brake light can also be installed on the inside of the headlight.

[0054] When the communication receiving module receives the brake status signal, it can control the LED array in the on-board display device at the front of the vehicle to light up, thereby reflecting the vehicle's attitude of slowing down and giving way, giving sufficient safety reminders to pedestrians or vehicles changing lanes in front.

[0055] At this time, the vehicle information display device also includes:

[0056] A monitoring module, used to monitor the braking status of the vehicle;

[0057] The sending module is used to send braking status information to the communication receiving module when it detects that the braking state of the vehicle changes from an unbraked state to a braked state, so that the controller in the vehicle-mounted information display device can control the LED display array to light up according to the received braking status information.

[0058] Furthermore, in a more specific implementation, the communication receiving module can receive the brake status signal by wireless communication, and considering that the metal body has a good shielding effect, therefore, in specific practice, a MAX1473 receiving chip with higher signal penetration performance is used as the communication receiving module. The circuit connection diagram of the MAX1473 receiving chip is as shown in FIG. Figure 2 shown.

[0059] In the above application, the brake status signal is wirelessly sent to the vehicle information display device through the SP370 chip with integrated signal monitoring and transmission functions. The line connection of the SP370 chip is as follows: Figure 3 As shown in the circuit connection diagram, considering that RF transmission is very sensitive to automobile electromagnetic noise, in order to better suppress noise and improve the reliability of the signal transmission module, filter capacitors C1, C2 and C6 are set near the power pin VCC, and the rate capacitor C7 is set at the VRGE pin. The modulation frequency of the SP370 chip crystal oscillator circuit in this application is 433.92MHz, so the external oscillation frequency G1 is 18.08MHz. L1, L2, C3, C4 and C5 form an antenna matching network. By optimizing these parameters, the antenna with a specific impedance can be matched to the output impedance of the SP37 power amplifier 500Ω to suppress harmonics and improve the efficiency of the antenna. In this application, the parameters of inductor L1 are 22nH, L2 are 15nH, the value of capacitor C3 is 33PF, the value of capacitor C4 is 100PF, and the value of capacitor C5 is 100PF.

[0060] In the above embodiment, the brake status signal is sent to the communication receiving module in the vehicle information display device through the SP370 chip with integrated signal monitoring and sending functions.

[0061] However, in the specific implementation of the present invention, it is not limited to the above specific implementation, and the monitoring module and the sending module can be set separately. The sending module can also transmit information to the communication receiving module in a wired manner.

[0062] For example, in a feasible solution, the monitoring module can monitor the braking status with the help of the vehicle's own vehicle diagnostic system; the sending module is connected to the vehicle diagnostic system through the OBD interface, and when it is detected that the braking status of the vehicle changes from an unbraked state to a braked state, the braking status information is sent to the communication receiving module.

[0063] In specific applications, the vehicle-mounted information display device can be fixed in a convenient and stable manner or in other ways, such as by electromagnetic means. Specifically, an electromagnetic suction cup is provided on the back of the vehicle-mounted information display device shell (the non-luminous display surface of the vehicle-mounted information display device), and the vehicle-mounted information display device is fixed to the outer shell of the car through the electromagnetic suction cup.

[0064] When the on-vehicle information display device is used as a high-mounted brake light, the overall shape of the brake light body can be a long strip and as close to the curve of the vehicle body as possible to achieve an overall visual effect without affecting the appearance of the car. Figure 4 The shape and installation effect diagram of a vehicle-mounted information display device 1 installed on the outside of a headlamp are shown.

[0065] Example 2

[0066] In the second embodiment, the vehicle information display device installed at the front of the vehicle can be used in conjunction with various sensors in front of the vehicle in addition to lighting the high-mounted brake light.

[0067] At this time, the monitoring module also includes a front road condition monitoring submodule, which is configured to monitor the status of pedestrians or non-motor vehicles in front of the vehicle;

[0068] The sending module has two functions. When it is monitored that the braking state of the vehicle changes from an unbraked state to a braked state, the braking state information is sent to the communication receiving module; at the same time, when it is detected that the pedestrian or non-motor vehicle in front of the vehicle is in a started state, the start-up state information is sent to the communication receiving module; so that the controller in the on-board information display device can light up the LED display array according to the received braking state information, and control the LED display array to display safe yield information based on the start-up state information.

[0069] In this embodiment, the front road condition monitoring submodule may specifically include a high-definition camera, a radar sensor, etc., which can determine whether the current state of a pedestrian or non-motor vehicle is in an activated state based on a known algorithm.

[0070] In this embodiment, the vehicle-mounted information display device does not serve as a simple high-mounted brake light, but also has an information display function. By controlling the LED display array, it displays safe yielding information, such as "This vehicle has braked, please pass quickly", to remind pedestrians and non-motor vehicles waiting to cross the road in front of the vehicle to pass quickly.

[0071] Furthermore, the in-vehicle information display device installed on the front of the vehicle can be divided into two parts and installed on the left and right sides of the front of the vehicle respectively. When a pedestrian or a vehicle is detected in front of the left side of the vehicle, the in-vehicle information display device on the left side lights up and displays; when a pedestrian or a vehicle is detected in front of the right side of the vehicle, the in-vehicle information display device on the right side lights up and displays.

[0072] Example 3

[0073] In another specific application example 3, the vehicle information display device is installed at the rear of the vehicle. At this time, the vehicle information display device mainly serves as an "information board" to display relevant driving information to the rear vehicle, so that the rear vehicle can understand the driving status at any time, so as to remind the rear vehicle to slow down and give way, and keep a distance.

[0074] In specific applications, the vehicle information display device can be installed on the rear window of the car. In addition, the vehicle information display device can also be fixedly installed on the top of the car or on the outer shell of the car trunk.

[0075] At this time, the communication receiving module is mainly used to receive the running status data of the rear vehicle, including the distance between the rear vehicle and the vehicle, the current moving speed of the rear vehicle and the relative speed; the controller controls the LED display array to display the corresponding data content according to the received running status data. Therefore, the vehicle-mounted information display device can display the running status data of the rear vehicle to the rear vehicle, reminding the rear vehicle driver to pay attention to speed control and spacing.

[0076] As a supporting device, the vehicle information display device also includes a monitoring module, which is configured to monitor the running status of the rear vehicle, including the distance between the rear vehicle and the vehicle, the current moving speed of the rear vehicle and the relative speed;

[0077] The sending module is used to send operating status information to the communication receiving module when it detects that the distance between the rear vehicle and the vehicle reaches a set threshold, so that the controller in the on-board information display device can control the LED display array to light up and display the corresponding data content (vehicle distance, rear vehicle movement speed and relative speed with the front display, etc.) according to the received operating status information.

[0078] In this embodiment, the sending module sets a certain threshold value, and the in-vehicle information display device will only display content when the distance between the rear vehicle and the vehicle reaches a certain condition. When the road conditions are different, the distance conditions set by the control module in the in-vehicle information display device are also different. For example, on a highway, if the distance between the rear vehicle and the front vehicle is detected to be less than 100 meters, the LED display array is controlled to light up and display information; if it is an urban road, if the distance between the rear vehicle and the front vehicle is detected to be less than 50 meters, the LED display array is controlled to light up and display information. When the distance between the rear vehicle and the front vehicle does not reach the above threshold, the LED display array will not light up and display information.

[0079] In addition, the data content displayed by the vehicle-mounted information display device may also include the current movement speed information of the preceding vehicle. The current movement speed information of the preceding vehicle can be read from the vehicle-mounted system of the vehicle and sent to the communication receiving module of the vehicle-mounted information display device for synchronous display.

[0080] For some smart driving cars, the operating status of the rear vehicle can be obtained with the help of the vehicle's existing smart driving system. The operating status data of the rear vehicle can be obtained from the smart driving system and sent to the communication receiving module of the on-board information display device through the sending module when it is detected that the distance between the rear vehicle and the vehicle reaches a set threshold.

[0081] The communication receiving module can receive the above information wirelessly or by wire.

[0082] For vehicles that do not have a complete monitoring and perception module, the operating status data of the rear vehicle can also be obtained based on additional sensors installed on the vehicle. The additionally installed sensors serve as monitoring modules, and specifically may include ultrasonic sensors or other sound wave sensors or video sensors installed at the rear of the car to obtain information about the vehicle behind the car.

[0083] For example, when the monitoring module is an ultrasonic sensor, the process specifically includes the following steps:

[0084] An ultrasonic sensor is used to transmit ultrasonic waves to the vehicle behind; the reflection time of the ultrasonic waves is obtained, and the relative distance between the current vehicle behind and the vehicle is obtained based on the reflection time; the relative speed of the current vehicle behind relative to the vehicle is obtained based on the frequency of the ultrasonic waves and the Doppler effect motion formula.

[0085] In the above steps, the Doppler effect motion formula can be used to obtain the relative motion speed of the rear vehicle. Specifically, the sound wave frequency f1 received by the rear vehicle is:

[0086]

[0087] The frequency f2 of the sound wave returned by the vehicle behind the vehicle received by the front vehicle (the vehicle itself) is:

[0088]

[0089] Therefore, the Doppler effect motion formula of the rear vehicle relative to the front vehicle is obtained from formulas (1) and (2):

[0090]

[0091] Wherein, f is the frequency of the sound waves sent by the ultrasonic sensor of the front vehicle (the vehicle itself) to the rear vehicle, and v0 is the sound wave frequency. Therefore, after obtaining the sound wave frequency f sent by the ultrasonic sensor, the returned sound wave frequency f2, and the sound wave speed v0, the relative movement speed of the rear vehicle can be calculated according to formula (3).

[0092] The moving speed of the vehicle can be directly read from the vehicle's onboard system, and the current moving speed minus the relative moving speed is the current moving speed of the following vehicle.

[0093] In Example 3, the vehicle-mounted information display device can also be divided into two independent parts and installed on the left and right sides of the rear of the vehicle respectively, to display different information contents respectively, for example, the display device on the left displays the vehicle speed, and the display device on the right displays the distance.

[0094] Furthermore, in order to display the vehicle's operating status to the following vehicle while also allowing the vehicle to understand relevant information, the operating status data can also be transmitted to the central control system and displayed to the vehicle through the central control screen. Or it can be displayed on the central control screen through projection technology for information display.

[0095] Furthermore, based on Example 3, it also includes a judgment module, which is used to judge whether the rear vehicle meets the lane changing or overtaking conditions based on the operating status of the rear vehicle and the current operating status of the vehicle; the sending module sends the judgment result to the communication receiving module, so that the controller in the vehicle-mounted information display device can control the LED display array to display the overtaking information based on the judgment result.

[0096] Example 4

[0097] In Embodiment 4, the controller in the vehicle-mounted information display device may also determine whether the rear vehicle can change lanes or overtake based on the received operating status data.

[0098] Specifically, the vehicle-mounted information display device is installed at the rear of the vehicle and also includes: a monitoring module for monitoring the braking status of the vehicle and the operating status of the rear vehicle; a sending module for sending braking status information to the communication receiving module when it is monitored that the braking status of the vehicle changes from an unbraked state to a braked state; at the same time, when it is monitored that the operating status of the rear vehicle changes from a normal driving state to a lane changing or overtaking state, the lane changing or overtaking status information is sent to the communication receiving module, so that the controller in the vehicle-mounted information display device can light up the LED display array according to the received braking status information, and control the LED display array to display corresponding safe yielding information based on the received lane changing or overtaking status information, such as "This vehicle is currently braked, please complete the lane change or braking."

[0099] Furthermore, based on Example 4, it also includes a judgment module, which is used to judge whether the rear vehicle meets the lane changing or overtaking conditions based on the operating status of the rear vehicle and the current operating status of the vehicle; the sending module sends the judgment result to the communication receiving module, so that the controller in the vehicle-mounted information display device can control the LED display array to display the overtaking information based on the judgment result.

[0100] The LED display array displays different contents according to different judgment results. For example, when it is confirmed that the rear vehicle can change lanes or overtake, the LED display array displays a green light and a text prompt that overtaking is currently possible; when it is confirmed that the rear vehicle cannot change lanes or overtake, the LED display array displays a red light and a text prompt that overtaking is currently prohibited.

[0101] In the vehicle-based information display device disclosed in the present invention, as another embodiment, the communication receiving module can also receive user preset information; the controller controls the LED display array to display the corresponding information content according to the received user preset information. It should be noted that the pre-examination information content is information unrelated to the driving status, such as the brand name and brand symbol information of the current vehicle, which is used to highlight the characteristics of the vehicle itself.

[0102] On the other hand, using the vehicle-mounted information display device disclosed in the present invention, this embodiment also discloses a vehicle-mounted information display method.

[0103] In a specific embodiment, the vehicle information display method is as follows: Figure 5 As shown, the following steps are included:

[0104] S11, monitoring the braking status of the vehicle;

[0105] S12. When it is detected that the braking state of the vehicle changes from an unbraked state to a braked state, braking state information is sent to an on-board information display device installed at the front of the vehicle, so that the on-board information display device can control the LED display array to light up according to the received braking state information.

[0106] Furthermore, in the above embodiment, in step S11, while monitoring the braking state of the vehicle, the state of pedestrians or non-motor vehicles in front of the vehicle is also monitored;

[0107] At this time, in step S12, when it is detected that the pedestrian or non-motor vehicle in front of the vehicle is in the start-up state, the start-up state information is sent to the vehicle-mounted information display device installed at the front position of the vehicle; so that the vehicle-mounted information display device can light up the LED display array according to the received brake status information, and control the LED display array to display safe yield information based on the start-up state information.

[0108] In another specific embodiment, a vehicle information display method, such as Figure 6 As shown, the following steps are included:

[0109] S21, monitoring the running status of the rear vehicle, the running status including the distance between the rear vehicle and the vehicle, the current moving speed of the rear vehicle and the relative speed;

[0110] S22. When it is detected that the distance between the rear vehicle and the vehicle reaches a set threshold, the operating status information is sent to the vehicle-mounted information display device installed at the rear of the vehicle, so that the vehicle-mounted information display device can control the LED display array to light up and display corresponding data content according to the received operating status information.

[0111] Furthermore, in the above embodiment, step S22 further includes the following steps:

[0112] According to the running status of the rear vehicle and the current running status of the vehicle, it is judged whether the rear vehicle meets the lane changing or overtaking conditions; and the judgment result is sent to the vehicle-mounted information display device, so that the vehicle-mounted information display device can control the LED display array to display the overtaking information according to the judgment result.

[0113] In a third specific embodiment, a vehicle information display method, such as Figure 7 As shown, the following steps are included:

[0114] S31, monitoring the braking status of the vehicle and the running status of the vehicle behind;

[0115] S32, when it is detected that the braking state of the vehicle changes from the unbraking state to the braking state, the braking state information is sent to the vehicle-mounted information display device installed at the rear of the vehicle; at the same time, when it is detected that the running state of the rear vehicle changes from the normal driving state to the lane changing or overtaking state, the lane changing or overtaking state information is sent to the vehicle-mounted information display device;

[0116] So that the vehicle-mounted information display device can light up the LED display array according to the received braking status information, and control the LED display array to display corresponding safe yielding information based on the received lane changing or overtaking status information.

[0117] Furthermore, in the above embodiment, before step S32 sends the lane change or overtaking status information to the vehicle-mounted information display device, the following steps are also included:

[0118] According to the running status of the rear vehicle and the current running status of the vehicle, it is judged whether the rear vehicle meets the lane changing or overtaking conditions; and the judgment result is sent to the vehicle-mounted information display device, so that the vehicle-mounted information display device can control the LED display array to display the overtaking information according to the judgment result.

[0119] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0120] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle information display device, characterized in that: The invention comprises a shell, and a communication receiving module, a controller and an LED display array which are connected in sequence inside the shell.

2. The vehicle-mounted information display device according to claim 1, characterized in that: The vehicle-mounted information display device is installed at the front of the vehicle, and also includes: A monitoring module, used to monitor the braking status of the vehicle; The sending module is used to send braking status information to the communication receiving module when it detects that the braking state of the vehicle changes from an unbraked state to a braked state, so that the controller can control the LED display array to light up according to the received braking status information.

3. The vehicle-mounted information display device according to claim 2, characterized in that: The monitoring module further includes a front road condition monitoring submodule, which is used to monitor the status of pedestrians or non-motor vehicles in front of the vehicle; The sending module is used to send the braking state information to the communication receiving module when it is detected that the braking state of the vehicle changes from the unbraking state to the braking state; at the same time, when it is detected that the pedestrian or non-motor vehicle in front of the vehicle is in the starting state, the starting state information is sent to the communication receiving module; So that the controller can light up the LED display array according to the received brake status information, and control the LED display array to display safe yielding information based on the start status information.

4. The vehicle-mounted information display device according to claim 1, characterized in that: The vehicle-mounted information display device is installed at the rear of the vehicle and also includes: A monitoring module, used to monitor the running status of the rear vehicle, wherein the running status includes the distance between the rear vehicle and the vehicle, the current moving speed of the rear vehicle and the relative speed; The sending module is used to send operating status information to the communication receiving module when it is detected that the distance between the rear vehicle and the vehicle reaches a set threshold, so that the controller can control the LED display array to light up and display corresponding data content according to the received operating status information.

5. The vehicle-mounted information display device according to claim 1, characterized in that: The vehicle-mounted information display device is installed at the rear of the vehicle and also includes: The monitoring module is used to monitor the braking status of the vehicle and the running status of the vehicle behind; The sending module is used to send braking status information to the communication receiving module when it is detected that the braking status of the vehicle changes from an unbraked state to a braked state; at the same time, when it is detected that the running status of the rear vehicle changes from a normal driving state to a lane changing or overtaking state, the lane changing or overtaking status information is sent to the communication receiving module, so that the controller can light up the LED display array according to the received braking status information, and control the LED display array to display corresponding safe yielding information based on the received lane changing or overtaking status information.

6. A vehicle information display method, using the vehicle information display device according to claim 1, characterized in that: The following steps are involved: Monitor the braking status of the vehicle; When it is detected that the braking state of the vehicle changes from an unbraked state to a braked state, the braking state information is sent to the vehicle information display device installed at the front position of the vehicle, so that the vehicle information display device can control the LED display array to light up according to the received braking state information.

7. The vehicle information display method according to claim 6, characterized in that: While monitoring the braking status of the vehicle, it also includes monitoring the status of pedestrians or non-motor vehicles in front of the vehicle; When it is detected that the pedestrian or non-motor vehicle in front of the vehicle is in the start-up state, the start-up state information is sent to the vehicle information display device installed at the front position of the vehicle; So that the vehicle-mounted information display device can light up the LED display array according to the received brake status information, and control the LED display array to display safe yielding information based on the start status information.

8. A vehicle information display method, using the vehicle information display device according to claim 1, characterized in that: The following steps are involved: Monitoring the running status of the rear vehicle, including the distance between the rear vehicle and the vehicle, the current moving speed of the rear vehicle, and the relative speed; When it is detected that the distance between the rear vehicle and the vehicle reaches a set threshold, the operating status information is sent to the on-board information display device installed at the rear of the vehicle, so that the on-board information display device can control the LED display array to light up and display the corresponding data content according to the received operating status information.

9. A vehicle information display method, using the vehicle information display device according to claim 1, characterized in that: The following steps are involved: Monitor the braking status of the vehicle and the running status of the vehicle behind; When the braking state of the vehicle is detected to change from an unbraked state to a braked state, the braking state information is sent to the vehicle-mounted information display device installed at the rear of the vehicle; at the same time, when the running state of the rear vehicle is detected to change from a normal driving state to a lane changing or overtaking state, the lane changing or overtaking state information is sent to the vehicle-mounted information display device; So that the vehicle-mounted information display device can light up the LED display array according to the received braking status information, and control the LED display array to display corresponding safe yielding information based on the received lane changing or overtaking status information.

10. The vehicle information display method according to claim 9, characterized in that: Before sending the lane change or overtaking status information to the vehicle-mounted information display device, the method further includes the following steps: According to the running status of the rear vehicle and the current running status of the vehicle, it is judged whether the rear vehicle meets the lane changing or overtaking conditions; and the judgment result is sent to the vehicle-mounted information display device, so that the vehicle-mounted information display device can control the LED display array to display the overtaking information according to the judgment result.

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