WO2018076570A1

WO2018076570A1 - Electronic signage control method and apparatus

Info

Publication number: WO2018076570A1
Application number: PCT/CN2017/072961
Authority: WO
Inventors: 刘均; 刘新; 宋朝忠; 杨伟; 欧阳张鹏
Original assignee: 深圳市元征科技股份有限公司
Priority date: 2016-10-24
Filing date: 2017-02-06
Publication date: 2018-05-03
Also published as: CN106469508A

Abstract

An electronic signage control method and control apparatus, the method comprising: sending a request to acquire vehicle information to a traffic information server, the vehicle information comprising driving speed, location, and driving direction (S102); on the basis of the received vehicle information, calculating the arrival time of a vehicle (S104); and when the vehicle arrival time is less than a predetermined time threshold, illuminating a display screen (S106). The present method can prevent the power wastage caused by keeping the display screen in a constantly illuminated state when no vehicles pass for a long time, and can prolong the service life of the electronic signage.

Description

Electronic sign control method and device

[0001] This application claims the priority of the Chinese Patent Application entitled "Electronic Signage Control Method and Apparatus" filed on October 24, 2016, the Chinese Patent Application No. 201610939829.7, the entire contents of In the application.

Technical Field

The present invention relates to the field of electronic information and road traffic safety technologies, and in particular, to an electronic sign control method and apparatus.

BACKGROUND OF THE INVENTION

[0005] With the development of the economy and the maturity of the automobile industry, automobiles have become an indispensable part of people's lives, and the corresponding road traffic indication facilities are constantly improving.

[0006] At present, the common electronic signs for road traffic are mostly powered by the mains, and some electronic signs are powered by solar energy, which has the characteristics of strong visibility and high reliability.

[0007] However, whether the electronic sign is powered by commercial power or solar energy, the power supply is kept in a normal state during operation. If there is no vehicle passing through the long inter-turn, the electronic sign does not need to be used. Always on, this will increase unnecessary power loss and reduce its service life.

SUMMARY OF THE INVENTION

[0009] Based on this, in order to solve the technical problem that the electronic sign is kept in a constant state and the power consumption is reduced in the conventional technology, a method of electronic sign control is proposed.

[0010] A method for electronic signage control, comprising:

[0011] transmitting, to the traffic information server, a request for acquiring vehicle information, where the vehicle information includes a traveling speed, a location, and a driving direction;

[0012] calculating the arrival time of the vehicle based on the received vehicle information;

[0013] The display screen is illuminated when the vehicle arrives below a set threshold value.

[0014] Optionally, after the lighting the display screen, the method further includes:

[0015] monitoring a vehicle travel distance according to the vehicle information, turning off the display screen when the vehicle travel distance exceeds a distance threshold ;; the vehicle travel distance is the vehicle and the electronic sign on the travel path the distance between.

[0016] Optionally, after the lighting the display screen, the method further includes:

[0017] illuminating the display screen according to a preset bright screen length, within the length of the bright screen, if the vehicle information that the vehicle arrives less than the set time threshold is not received, the display is turned off Screen.

[0018] Optionally, the method further includes:

[0019] collecting a road condition image by a camera, and detecting vehicle target information in the road condition image by image recognition

[0020] illuminating the display screen after detecting that the road condition image includes vehicle target information 吋.

[0021] Optionally, the method further includes:

[0022] querying the real weather status information, and adjusting the set diurnal threshold according to the weather status information.

[0023] In addition, in order to solve the technical problem that the electronic signboard is kept in a conventional state and the power is wasted and the service life is reduced, an electronic sign control device is proposed.

[0024] An apparatus for controlling electronic signage, comprising:

[0025] a vehicle information acquisition module, configured to send a request for acquiring vehicle information to the traffic information server, where the vehicle information includes a traveling speed, a location, and a driving direction;

[0026] an arrival day calculation module, configured to calculate a vehicle arrival time based on the received vehicle information;

[0027] A display lighting module is configured to illuminate the display screen when the vehicle arrives below a set time threshold.

[0028] Optionally, the device further includes a display screen closing module, configured to:

[0029] monitoring a vehicle travel distance according to the vehicle information, turning off the display screen when the vehicle travel distance exceeds a distance threshold ;; the vehicle travel distance is between the vehicle and the electronic sign on the travel path the distance.

[0030] Optionally, the display shutdown module is further configured to:

[0031] illuminating the display screen according to a preset bright screen length, within the length of the bright screen, if the vehicle information that does not arrive at the daytime lower than the set time threshold is not received, the display screen is turned off .

[0032] Optionally, the device further includes an image information detecting module, configured to:

[0033] collecting a road condition image by a camera, and detecting vehicle target information in the road condition image by image recognition [0034] Detecting the road condition image includes vehicle target information 吋, lighting the display screen.

[0035] Optionally, the device further includes a weather status information query module, configured to:

[0036] querying the real weather status information, and adjusting the set diurnal threshold according to the weather status information.

[0037] Implementing the embodiments of the present invention will have the following beneficial effects:

[0038] By requesting the vehicle information from the traffic information server, such as the traveling speed, the location, the traveling direction, and the like, it is calculated that the vehicle arrives at the time of the electronic sign, and when the vehicle reaches the electronic sign, the threshold is lower than the set threshold. , that is, the display screen is displayed to the user to display the traffic information, and after the vehicle passes the electronic signage, the display screen is turned off, thereby avoiding the waste of power generated by the display being kept in a bright state in the long room. Extend the life of the electronic signage.

BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the prior art description will be briefly described below, and obviously, in the following description The drawings are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

[0041] wherein:

1 is a flow chart of an electronic sign control method in an embodiment;

2 is a schematic diagram of an electronic sign control method in an embodiment;

[0044] FIG. 3 is a structural diagram of an electronic sign control device in an embodiment;

4 is a hardware architecture diagram of a computer system running the above electronic sign control method in an embodiment. [0046]

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example.

[0048] It is to be understood that the terminology used in the embodiments of the present invention is for the purpose of describing particular embodiments, and is not intended to limit the invention. The singular forms "a", "the" and "the" It should also be understood that the term "and/or" as used herein refers to and includes one or more of the associated List any or all possible combinations of items.

[0049] In order to solve the technical problem that the electronic signboard is kept in a conventional state and the power consumption is wasted and the service life is reduced, a method for controlling the electronic sign is proposed. Implementation of the method may rely on a computer program, which may be a driver management program or a device management program for an electronic signage. The computer program can run on a computer system based on the von Neumann system.

[0050] Referring to FIG. 1, a flowchart of a method for controlling an electronic signboard according to an embodiment of the present invention includes the following steps:

[0051] Step S102: Send a request for acquiring vehicle information to the traffic information server, where the vehicle information includes a driving speed, a location, and a driving direction.

[0052] In one embodiment, when the electronic sign is in operation, communication can be performed through the NB-IoT (Narrow Band Internet of Things) to query the traffic information server. Among them, NB-IoT is built on a cellular network and consumes only about 180KHz of bandwidth. It can be deployed directly on GSM networks, UMTS networks or LTE networks to reduce deployment costs and achieve smooth upgrades. The main features are: First, wide coverage, Provides improved indoor coverage. In the same frequency band, NB-IoT gains 20dB more than the existing network, and the coverage area is expanded by 100 times. Second, with the ability to support massive connections, NB-IoT-sector can support 100,000. Connections, support low latency sensitivity, ultra-low device cost, low device power consumption and optimized network architecture; Third, lower power consumption, NB-IoT terminal module standby time can be up to 10 years; Fourth, the lower module cost, the enterprise expects a single connected module of no more than 5 US dollars, can be widely used in Internet of Things, smart medical, smart home and other Internet of Things.

[0053] The traffic information server can communicate with the vehicle to obtain the driving state of the vehicle, such as measuring the traveling speed by the sensor inside the vehicle, and acquiring the actual position, the driving direction, the driving route, and the like according to the satellite positioning system. At the same time, vehicle information can also be obtained based on the image of the vehicle captured by the camera set on the road surface. The traffic information server schedules and instructs road driving conditions based on the acquired vehicle information to reduce vehicle congestion and improve driving safety.

[0054] In one embodiment, the electronic sign may send a request to acquire the vehicle information to the traffic information server at a set frequency. In the actual situation, the traffic volume of different inter-segment sections is different, for example, in the morning and evening peaks, the traffic volume is large, and the frequency of sending query requests can be increased, for example, 100 times per minute to ensure the acquisition of information. Sex and accuracy; less traffic at night, can reduce the sending query please Find the frequency, such as 30 queries per minute to save energy.

[0055] Step S104: Calculate the arrival time of the vehicle according to the received vehicle information.

[0056] Step S106: illuminate the display screen when the vehicle arrives below the set time threshold 吋.

[0057] In one embodiment, it is necessary to determine the distance between the vehicle and the electronic sign according to the position of the vehicle, and combine the actual speed of the vehicle to obtain the time when the vehicle is expected to reach the electronic sign. When the interval is lower than the set time threshold, the display is turned on.

[0058] For example, it is set to start the display screen when the vehicle reaches the electronic signboard, and the vehicle information acquired in one inquiry includes about 800m from the electronic signboard, and the actual vehicle speed is about 40km/h, and the calculation is calculated. It reaches about 1.2 minutes between the turns of the electronic sign, which is higher than the set threshold of the set display, and does not perform the operation of turning on the display; in another inquiry, the acquired vehicle information includes The distance from the electronic signage is about 6,000m, and the actual speed is about 40km/h. It is calculated that the time between the arrival of the electronic signboard is about 54s, which is lower than the set threshold value of the displayed display, and the display is illuminated.

[0059] It should be noted that the display screen may be a multi-function information display screen composed of a combination of an ordinary road sign and a variable information sign, and the LED variable light band is embedded in the road segment identification area of the static graphic, and the LED is different. The color is illuminated, and the image identifies these road sections in a smooth (green), blocked (red) or crowded (orange) state, for the driver to judge and select the appropriate driving route, which serves as a traffic guide.

[0060] In addition, after setting the query information, a certain query range can be set, for example, only querying the vehicle information within a range of 1000 m centered on one electronic sign, so as to avoid excessive query range. Excessive data acquisition leads to complicated processing and reduced work efficiency. Similarly, the spacing of each electronic signage can be reasonably set to improve resource utilization.

[0061] Correspondingly, in the actual situation, the vehicle may be within the set distance range, but it is judged that the electronic sign is not passed according to the driving route. In this case, it is also required to combine the traveling direction. And the driving route to judge, to avoid the electronic signboard display after the misjudgment, but the actual vehicle does not pass, resulting in unnecessary power loss. For example, as shown in FIG. 2, the linear distance of the vehicle A from the electronic sign is 500m from the vehicle information, but it is determined from the traveling direction and the driving route that the vehicle is traveling on the road where the electronic sign is located. On the viaduct, the electronic sign is not actually passed, so there is no need to illuminate the display for information prompting, thereby saving power. [0062] In another embodiment, if the travel route of the vehicle is relatively simple from the traffic information server, and the running speed of the vehicle is stable, for example, the direction of the straight line must pass through the electronic signboard, and the vehicle can be directly located according to the positioning. Obtain the distance from the vehicle to the electronic sign. In this case, set the display within a certain distance. For example, in the absence of a curve or viaduct, set 300 m as the threshold. When the vehicle information is obtained from the traffic server, the positioning information is extracted as 300m from the electronic sign, and the display screen is displayed for information display. , which can further reduce the amount of calculation and improve the feedback efficiency.

[0063] In another embodiment, the vehicle information is not queried from the traffic information server, such as a vehicle that does not have a communication function, or a vehicle that has not been registered for backup. In this case, the electronic sign may be The camera is pre-installed, and the electronic signboard can detect that the vehicle is about to arrive in the image information collected by the camera. In order to ensure the accuracy of the detection, a camera with a high resolution can be used, or the recognition accuracy of the image processing can be improved. For example, within 5 minutes, the electronic signage queries the traffic information server for the unacquired vehicle information, during which the camera collects the image information of the vehicle, and according to the image processing, determines that the vehicle is at a distance of 400 m from the electronic sign, after 5 s interval The image information of the vehicle is collected, and the vehicle is determined to be 300m away from the electronic sign according to the image information. If the set distance threshold is 300m, the display screen is displayed after the second inquiry, and the information is displayed. Avoid missing monitoring of vehicles that are going through an electronic signage.

[0064] In addition, the camera on the electronic signboard can be used in conjunction with the vehicle information server to query the vehicle information, for example, it can be set to use different in different sections. In the way, for example, the image is captured by the camera during the daytime, the vehicle information is detected by the image recognition, the display screen is illuminated, the light is weak at night, and the vehicle information is detected by querying the vehicle server, and then it is determined whether the arrival time is lower than the arrival time. Set thresholds to control the display to improve detection reliability

[0065] In another embodiment, due to different visibility in different weather conditions, the set diurnal threshold may be adjusted according to the weather state by querying the actual weather state. For example, the ambient light can be detected by a light sensor. The illumination on a rainy day is about 300~100001ux, and the illumination on a clear weather is about 30,000~3000001ux. The appropriate illumination threshold can be set. The detected actual illumination is below the threshold. Daytime threshold; another example, the electronic signage is queried to the server for rain and snow, due to The visibility is low, and the brightness of the display can be increased by setting the long threshold of the daytime, or the LED light source corresponding to the band that is easy for the human eye to recognize, for example, most of the automobile fog lamps are highly penetrating. The fog lights are easy for the driver to identify.

[0066] In an embodiment, the display may be turned off based on the acquired vehicle information to determine that the distance between the vehicle and the electronic sign exceeds a distance threshold 吋. After the display is illuminated, the vehicle passes the electronic sign, and then the distance between the vehicle and the electronic sign can be obtained only by the vehicle positioning information in the acquired vehicle information. For example, the distance threshold for setting the display off is 100m. After the first inquiry, the vehicle position is 10m on the east side of the electronic sign. After the second inquiry, the vehicle is located 80m west of the electronic sign. After the third inquiry, the vehicle is located 180m west of the electronic signage, and exceeds the set threshold range. The display is turned off, so that no vehicle passes through the long room, and the display remains bright. The power is wasted, extending the life of the electronic signage.

[0067] In another embodiment, if a plurality of vehicles pass the electronic sign, the display may be turned off after the last car passes the electronic sign and the distance from the electronic sign exceeds the distance threshold 吋. For example, suppose that the turn-off threshold of the display is lmin, and the distance threshold for turning off the display is 300m. Two cars pass through the electronic sign in turn, and the driving directions are the same, all traveling from east to west, in the first Before the car passes the electronic sign, the distance from the time to the electronic sign is 50s, which is lower than the set daytime threshold lmin. The display of the electronic sign is turned on, then the car passes the electronic sign, and the electronic indicator At the 400m west side of the card, the 判断 determines that the display needs to be turned off according to the set distance threshold, but the peer detects that the second car is driving from east to west toward the electronic sign, and it reaches the electronic sign. 40s, below the set daytime threshold, the display will remain open. When the second vehicle is detected to travel in a direction away from the electronic sign, and the distance to the electronic sign exceeds the set distance threshold of 300 m, the display screen is turned off, thereby avoiding frequent increase of the driver's reading on the display screen. The difficulty of the information.

[0068] In one embodiment, after the display screen is illuminated, the display screen is illuminated according to a preset brightness screen length, within the length of the bright screen, if the vehicle is not received, the time is lower than the set time. The vehicle information of the threshold is turned off, and the display screen is turned off. The brightness of the bright screen can be a fixed value. For example, the display is turned off 5 minutes after the display is turned on; the brightness of the bright screen can also be set to different values in different sections and under different conditions, for example, During the period from 23:00 to 5:00, the traffic volume on the general road is small. You can set the preset bright screen length to a small value, such as 50s. In the morning and evening, the peak traffic volume is larger, it will be pre- Set the brightness of the screen to be set to Large values, such as 3min, and, for example, in more remote sections, such as those farther from the city center, you can set the brightness of the screen to a smaller value, such as lmin, so as to achieve reasonable use of resources and save energy. purpose

[0069] In one embodiment, the execution of the present invention is set forth below in connection with a specific application scenario. In this application scenario, the display screen of the electronic signboard is in the initial state, and the frequency of sending the request to the traffic information server is 10 times/min, that is, the interval is 10s, and the query range is 1000 m. That is, only the information of the vehicle in the range of 1000m is obtained; the threshold value of the electronic signboard is 1min, that is, the time when the vehicle reaches the electronic signboard is detected within 1min, the display screen is turned off; The distance threshold is set to 500m, that is, the distance between the vehicle and the electronic sign is detected to exceed 500 m, and the display is turned off.

[0070] After the electronic signboard first makes an inquiry to the traffic information server, it is detected that there is a vehicle driving to the electronic signboard at a distance of 99 m from the electronic signboard, and the speed is 15 m/s, and the vehicle is calculated to arrive. The turn of the electronic signboard is about 66s, which is higher than the set daytime threshold lmin, and the display remains off.

[0071] After the electronic signboard makes an inquiry to the traffic information server for the second time, it is detected that the vehicle is driven to the electronic signboard at the distance 84m, and the speed is 15m/s, and the vehicle is calculated to arrive. The daytime of the electronic signboard is about 56s, which is lower than the set daytime threshold lmin.

[0072] In the following eleventh inquiry, it was detected that the vehicle left the electronic sign with a distance of 510 m and exceeded the set distance threshold of 500 m, and the display screen was closed.

[0073] In addition, in order to solve the technical problem that the electronic sign is kept in a constant state and the power consumption is reduced, and the service life is reduced, in one embodiment, an electronic sign control device is also proposed, as shown in FIG. The device for controlling the electronic sign includes the vehicle information acquiring module 102, the inter-turn calculation module 104, and the display lighting module 106, wherein:

[0074] The vehicle information acquiring module 102 is configured to send a request for acquiring vehicle information to the traffic information server, where the vehicle information includes a traveling speed, a location, and a driving direction;

[0075] an arrival time calculation module 104, configured to calculate a vehicle arrival time based on the received vehicle information;

[0076] The display lighting module 106 is configured to illuminate the display screen when the vehicle arrives below a set time threshold.

[0077] Optionally, the device further includes a display screen closing module 108, configured to: [0078] monitoring a vehicle travel distance according to the vehicle information, turning off the display screen when the vehicle travel distance exceeds a distance threshold ;; the vehicle travel distance is between the vehicle and the electronic sign on the travel path the distance.

[0079] Optionally, the display shutdown module 108 is further configured to:

[0080] illuminating the display screen according to a preset bright screen length, within the bright screen length, if the vehicle information that the vehicle arrives less than the set time threshold is not received, the display is turned off Screen.

[0081] Optionally, the device further includes an image information detecting module 110, configured to:

[0082] collecting a road condition image by a camera, and detecting vehicle target information in the road condition image by image recognition

[0083] The display screen is illuminated by detecting that the road condition image includes the vehicle target information 。.

[0084] Optionally, the device further includes a weather status information query module 112, configured to:

[0085] querying the real weather status information, and adjusting the set diurnal threshold according to the weather status information.

[0086] Implementing the embodiments of the present invention will have the following beneficial effects:

[0087] By requesting the vehicle information, such as the traveling speed, the location, the traveling direction, and the like, to the traffic information server, it is calculated that the vehicle arrives at the time of the electronic sign, and when the vehicle reaches the electronic sign, the threshold is lower than the set threshold. , that is, the display screen lights up the corresponding information to the user, and after the vehicle passes the electronic signage, the display screen is closed, thereby avoiding the waste of power caused by the fact that the vehicle does not pass through the squat in the long squatting room, and the display remains in a steady state. It can extend the life of electronic signage.

[0088] In one embodiment, as shown in FIG. 4, FIG. 4 illustrates a terminal 10 of a von Neumann system-based computer system that operates the method of electronic signage control described above. Specifically, an external input interface 1001, a processor 1002, a memory 1003, and an output interface 1004 connected through a system bus may be included. The optional input interface 1001 can optionally include at least a network interface 10012. The memory 1003 may include an external memory 10032 (e.g., a hard disk, an optical disk, or a floppy disk, etc.) and an internal memory 10034. Output interface 1004 can include at least devices such as display 10042.

[0089] Specifically, the processor 1002 is further configured to perform the following steps:

[0090] transmitting, to the traffic information server, a request for acquiring vehicle information, where the vehicle information includes a traveling speed, a location, and a traveling direction;

[0091] calculating, according to the received vehicle information, the arrival time of the vehicle; [0092] The display screen is illuminated when the vehicle arrives below the set time threshold.

[0093] Optionally, after the lighting the display screen, the method further includes:

[0094] monitoring a vehicle travel distance according to the vehicle information, turning off the display screen when the vehicle travel distance exceeds a distance threshold ;; the vehicle travel distance is between the vehicle and the electronic sign on the travel path the distance.

[0095] Optionally, after the lighting the display screen, the method further includes:

[0096] illuminating the display screen according to a preset bright screen length, within the bright screen length, if the vehicle information that the vehicle arrives less than the set time threshold is not received, the display is turned off Screen.

[0097] Optionally, the method further includes:

[0098] collecting a road condition image by a camera, and detecting vehicle target information in the road condition image by image recognition

[0099] The display screen is illuminated by detecting that the road condition image includes vehicle target information 吋.

[0100] Optionally, the method further includes:

[0101] querying the actual weather state information, and adjusting the set time threshold according to the weather state information.

[0102] In the present embodiment, the operation of the method is based on a computer program whose program file is stored in the external memory 10032 of the aforementioned von Neumann system-based computer system 10, which is loaded into the internal memory after the operation. 10034, which is then compiled into a machine code and then passed to the processor 1002 for execution, so that the logical vehicle information acquisition module 102 is formed in the von Neumann system-based computer system 10, and arrives at the inter-day calculation module 104, the display screen. The lighting module 106, the display closing module 108, the image information detecting module 110, and the weather status information querying module 112. During the execution of the method of the electronic sign control, the input parameters are received by the external input interface 1001, and transferred to the buffer in the memory 1003, and then input to the processor 1002 for processing, and the processed result data is cached in the memory 1003. Subsequent processing is performed or passed to the output interface 1004 for output.

[0103] Those skilled in the art can understand that all or part of the processes in implementing the above embodiments may be completed by a computer program to instruct related hardware, and the program may be stored in a computer readable storage medium. The program, after execution, may include the flow of an embodiment of the methods as described above. The storage medium may be a magnetic disk, an optical disk, or a read-only storage memory (Read-Only)

Memory, ROM) or Random Access Memory (RAM). The above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and those skilled in the art can understand all or part of the process of implementing the above embodiments, and according to the present invention. The equivalent changes required are still within the scope of the invention.

technical problem

Problem solution

Advantageous effects of the invention

Claims

Claim

An electronic sign control method, characterized in that the method comprises:

Sending a request for acquiring vehicle information to the traffic information server, where the vehicle information includes a traveling speed, a location, and a traveling direction;

Calculating the arrival time of the vehicle based on the received vehicle information;

The display is illuminated when the vehicle arrives below the set daytime threshold.

The electronic sign control method according to claim 1, further comprising: after the lighting the display screen,

The vehicle travel distance is monitored based on the vehicle information, and the display screen is turned off when the vehicle travel distance exceeds a distance threshold ;; the vehicle travel distance is a distance between the vehicle and the electronic sign on the travel path.

The display is illuminated according to a preset bright screen length within which the display is turned off if no vehicle information is received that arrives at a time lower than the set daytime threshold. The electronic sign control method according to any one of claims 1 to 3, wherein the method further comprises:

Collecting a road condition image through a camera, and detecting vehicle target information in the road condition image by image recognition;

The display screen is illuminated by detecting that the road condition image includes the vehicle target information 。. The electronic sign control method according to any one of claims 1 to 3, wherein the method further comprises:

The actual weather status information is queried, and the set time threshold is adjusted according to the weather status information.

[Claim 6] An electronic sign control device, wherein the device comprises:

a vehicle information acquisition module, configured to send a request for acquiring vehicle information to the traffic information server, where the vehicle information includes a traveling speed, a location, and a driving direction; An inter-turn calculation module is configured to calculate a vehicle arrival time based on the received vehicle information;

A display lighting module is configured to illuminate the display screen when the vehicle arrives below a set threshold value.

The electronic sign control device according to claim 6, wherein the device further comprises a display screen closing module, configured to:

The electronic signage control device according to claim 6, wherein the display screen closing module is further configured to:

The display is illuminated according to a preset bright screen length within which the display is turned off if the vehicle information that the vehicle has reached the daytime threshold below the set daytime threshold is not received. The electronic sign control device according to any one of claims 6 to 8, wherein the device further comprises an image information detecting module, configured to:

The display screen is illuminated by detecting that the road condition image includes the vehicle target information 。. The electronic sign control device according to any one of claims 6 to 8, wherein the device further comprises a weather status information query module, configured to: