Intersection traffic signal active transmission method based on signal receiving and transmitting system

Abstract

The invention discloses an intersection traffic signal active transmission method based on a signal transmitting and receiving system, and the main design concept of the invention lies in that the signal transmitting and receiving system for information signal transmission is constructed around traffic lights; the information supply end is configured on a traffic management platform, the information transmitting end is configured on a traffic light, and the information receiving end is configured on a mobile computing terminal. The information supply end issues road condition information and traffic light signal logic to the information transmitting end in real time; the information transmitting end with identity information actively broadcasts corresponding traffic light states, road condition information and identity information to the surroundings through radio signals; when the information receiving end enters the broadcast preset range, the broadcast content of the information transmitting end can be acquired in real time and is analyzed and processed, so that the broadcast content of the information receiving end can be analyzed and processed in an environment with poor light or abnormal scenes such as traffic light display failure and shielding. Pedestrians or vehicle drivers can be ensured to receive traffic light signals and road condition information.

Description

Technical Field

[0001] The present invention relates to the technical field of traffic signal control, and in particular to a method for actively transmitting traffic signals at intersections based on a signal transceiver system. Background Art

[0002] In poor lighting conditions such as rain, fog, backlight, or in special circumstances such as when traffic lights are damaged or blocked, it is difficult for people or vehicles to observe traffic lights at intersections and the road conditions ahead.

[0003] The industry has proposed that synchronizing traffic lights and road condition information through V2X can solve this problem to a certain extent. For example, through the traffic light signal interface provided by the traffic management department and in conjunction with the map interface, traffic light status and road condition information can be sent to pedestrians or vehicles.

[0004] However, the existing solution has uncontrollable signal lag. In addition, the traffic signal data collected through V2X is prone to errors. Therefore, the conditions for using the existing solution are relatively harsh and cannot fully ensure traffic safety at intersections in harsh environments and abnormal situations, as well as the reliability of multi-scenario applications. Summary of the invention

[0005] In view of the above, the present invention aims to provide a method for actively transmitting traffic signals at intersections based on a signal transceiver system to solve the above-mentioned technical problems.

[0006] The technical solution adopted by the present invention is as follows:

[0007] The present invention provides a method for actively transmitting traffic signals at intersections based on a signal transceiver system, wherein the signal transceiver system comprises: an information supply end configured on a traffic management platform, an information transmitting end configured at a traffic light, and an information receiving end configured on a mobile computing terminal;

[0008] The active transmission method comprises:

[0009] The information supplier sends the road condition information and traffic light signal logic to the information transmitter in real time;

[0010] The information transmitter with identity information broadcasts the corresponding traffic light status, road condition information and identity information to the surrounding area in real time or at a predetermined period by radio signal;

[0011] The information receiving end within the preset range obtains the broadcast content of the information transmitting end in real time and performs analysis and processing.

[0012] In at least one possible implementation manner, the identity information includes at least the following location codes: traffic light coordinates, or the coordinates of the road section where the traffic light is located and the driving direction of the road section.

[0013] In at least one possible implementation manner, the predetermined period and the traffic light signal adopt the same frequency.

[0014] In at least one possible implementation manner, broadcasting to the surrounding area using a radio signal includes: broadcasting to the surrounding area through a preset dedicated electromagnetic wave channel.

[0015] In at least one possible implementation manner, carrier coding is performed on broadcast content sent by an information transmitter to surrounding areas.

[0016] In at least one possible implementation, after each traffic light signal logic is sent down, the traffic light control module adjusts the traffic light signal based on the execution status of the light control signal or a preset emergency condition and based on the sent current traffic light signal logic.

[0017] Compared with the prior art, the main design concept of the present invention is to build a signal transceiver system for information signal transmission around traffic lights, specifically, an information supply end configured on the traffic management platform, an information transmitter configured at the traffic light, and an information receiver configured on the mobile computing terminal. The information supply end sends road condition information and traffic light signal logic to the information transmitter in real time; the information transmitter with identity information actively broadcasts the corresponding traffic light status, road condition information and identity information to the surrounding area by radio signals; when the information receiver enters the preset broadcast range, it can obtain the broadcast content of the information transmitter in real time and parse and process it, so that pedestrians or vehicle drivers can receive traffic light signals and road condition information regardless of poor lighting conditions or abnormal scenes such as traffic light display failures or obstructions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described below with reference to the accompanying drawings, in which:

[0019] Figure 1 A schematic diagram of a method for actively transmitting traffic signals at intersections based on a signal transceiver system provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0021] The present invention proposes an embodiment of a method for actively transmitting traffic signals at intersections based on a signal transceiver system. Specifically, the signal transceiver system comprises: an information supply end configured on a traffic management platform, an information transmitting end configured at a traffic light, and an information receiving end configured on a mobile computing terminal; based on this, the transmission method is as follows: Figure 1 As shown, specifically including:

[0022] Step S1, the information supply end sends the road condition information (such as whether there are roadblocks, traffic restrictions, congestion, traffic accidents, etc.) and traffic light signal logic to the information transmitter in real time;

[0023] Traffic light signal logic mainly refers to the established rules of the traffic control department such as traffic light signal changes and signal durations, and preferably, after the traffic light signal logic is issued once, the traffic light control module can adjust the traffic light signal in a timely manner based on the execution status of the light control signal or emergency conditions.

[0024] Step S2, the information transmitter with identity information broadcasts the corresponding traffic light status, road condition information and identity information to the surrounding area in real time or at a predetermined period by radio signal;

[0025] What can be expanded here is that the main function of identity information is to distinguish the signal transmitters in different traffic lights. In actual operation, it can be reflected by selecting but not limited to position code or position information string, driving direction or longitude and latitude coordinates of the corresponding road section at the intersection;

[0026] In addition, the aforementioned predetermined period can use the same frequency as the traffic light signal; and it can also be pointed out that the broadcasting to the surrounding area with a radio signal can specifically be sending the aforementioned information and signals to the surrounding area through a preset dedicated electromagnetic wave channel, and this process is more preferably also able to perform carrier coding to prevent signal interference.

[0027] Based on the above, the following implementation examples are provided here for reference: when deploying traffic lights, the location information of the traffic lights can be pre-edited, where the location information can be information such as latitude and longitude coordinates, street section location, current section driving direction, etc.; when the traffic lights are actually used afterwards, the traffic light location, light status, road condition status and other information can be sent to the surroundings in real time or at a cycle of 50 milliseconds; the information transmitting end here can be programmed using general-purpose chips or dedicated chips in the industry, which is not the focus of the present invention and will not be elaborated or limited.

[0028] Step S3: The information receiving end within a preset range (eg, close to the corresponding current intersection at a predetermined distance) acquires the broadcast content of the information transmitting end in real time and performs analysis and processing.

[0029] The information receiving end configured on a vehicle terminal (such as T-BOX, etc.) or a user portable terminal (such as a mobile phone, etc.) receives the traffic light status, road condition information and the corresponding information transmitting end identity in real time, and uses it for other subsequent functions after analysis. For example, the automatic driving algorithm, the navigation planning displayed by the pedestrian's mobile phone or the APP in the vehicle MP5 and other modules can use the information broadcast by the traffic light on demand, especially for special working conditions such as unclear traffic lights or abnormal traffic light display, the traffic status of the current intersection can be grasped through the above broadcast information, thereby avoiding traffic chaos or even accidents. As mentioned above, the information receiving end can use a dedicated chip, a general chip, or even be embodied in the form of an APP, which is not elaborated or limited by the present invention.

[0030] In summary, the main design concept of the present invention is to build a signal transceiver system for information signal transmission around traffic lights, specifically, an information supply end configured on the traffic management platform, an information transmitter configured at the traffic light, and an information receiver configured on the mobile computing terminal. The information supply end sends road condition information and traffic light signal logic to the information transmitter in real time; the information transmitter with identity information actively broadcasts the corresponding traffic light status, road condition information and identity information to the surrounding area by radio signals; when the information receiver enters the preset broadcast range, it can obtain the broadcast content of the information transmitter in real time and parse and process it, so that pedestrians or vehicle drivers can receive traffic light signals and road condition information regardless of poor lighting conditions or abnormal scenes such as traffic light display failures or obstructions.

[0031] If the expressions expressing orientation are mentioned in the embodiments of the present invention, they are relative concepts based on the embodiments. In addition, "at least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can be represented by: a, b, c, a and b, a and c, b and c, or a and b and c, wherein a, b, c can be single or multiple.

[0032] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings, but the above is only a preferred embodiment of the present invention. It should be noted that the technical features involved in the above embodiments and their preferred methods can be reasonably combined and matched into a variety of equivalent schemes by those skilled in the art without departing from or changing the design ideas and technical effects of the present invention; therefore, the present invention is not limited to the scope of implementation shown in the drawings, and all changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the specification and drawings, should be within the protection scope of the present invention.

Claims

1. A method for actively transmitting traffic signals at intersections based on a signal transceiver system, characterized in that: The signal transceiver system includes: an information supply end configured on the traffic management platform, an information transmitting end configured at the traffic light, and an information receiving end configured on the mobile computing terminal; The active transmission method comprises: The information supplier sends the road condition information and traffic light signal logic to the information transmitter in real time; The information transmitter with identity information broadcasts the corresponding traffic light status, road condition information and identity information to the surrounding area in real time or at a predetermined period by radio signal; The information receiving end within the preset range obtains the broadcast content of the information transmitting end in real time and performs analysis and processing.

2. The method for actively transmitting traffic signals at intersections based on a signal transceiver system according to claim 1, characterized in that: The identity information includes at least the following location codes: traffic light coordinates, or the coordinates of the road section where the traffic light is located and the driving direction of the road section.

3. The active transmission method of traffic signals at intersections based on a signal transceiver system according to claim 1, characterized in that: The predetermined period has the same frequency as that of a traffic light signal.

4. The active transmission method of traffic signals at intersections based on a signal transceiver system according to claim 1, characterized in that: The broadcasting to the surroundings with radio signals includes: broadcasting to the surroundings through a preset dedicated electromagnetic wave channel.

5. The active transmission method of traffic signals at intersections based on a signal transceiver system according to claim 4, characterized in that: Carrier encoding is performed on the broadcast content sent by the information transmitter to the surrounding area.

6. The method for actively transmitting traffic signals at intersections based on a signal transceiver system according to any one of claims 1 to 5, characterized in that: After each traffic light signal logic is sent down, the traffic light control module adjusts the traffic light signal based on the execution status of the light control signal or the preset emergency condition and based on the sent current traffic light signal logic.

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