CN214376955U - Public traffic display system of traffic lights - Google Patents
Public traffic display system of traffic lights Download PDFInfo
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- CN214376955U CN214376955U CN202120311374.0U CN202120311374U CN214376955U CN 214376955 U CN214376955 U CN 214376955U CN 202120311374 U CN202120311374 U CN 202120311374U CN 214376955 U CN214376955 U CN 214376955U
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Abstract
The utility model discloses a public transit display system of traffic lights, include: the traffic light signal machine is used for generating control information of traffic light signals and sending the traffic light signals to the road side unit; the road side unit is used for receiving the traffic light signals and sending the traffic light signals to the vehicle-mounted unit; the vehicle-mounted unit is used for receiving the traffic light signals, converting the traffic light signals into visual signals and sending the visual signals to the LED display screen; and the LED display screen is arranged on a rear window at the tail part of the bus and is used for displaying traffic light state information of the intersection. According to the bus display system provided by the embodiment of the disclosure, the state of the traffic light can be displayed at the tail part of the bus, the traffic light information can be effectively transmitted, and the passing safety of the bus is improved.
Description
Technical Field
The utility model relates to a car networking technical field, in particular to public transit display system of traffic lights.
Background
The traffic lights have an important role in maintaining traffic order, and in the prior art, the traffic lights are fixedly arranged on lamp posts of intersections by adopting a scheme of fixing positions and fixing heights.
However, when a small car passes through a traffic light along with a large car, the car body height is greatly different due to too short car distance, the sight of the car behind is blocked, the situation of mistakenly running the red light is often caused, and the safety of the rear car is greatly influenced; moreover, the position of a common traffic light is high, and sometimes the state of the traffic light cannot be seen clearly when the light is strong, which is also a problem caused by a fixed position.
SUMMERY OF THE UTILITY MODEL
The embodiment of the disclosure provides a public traffic display system of traffic lights. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
The embodiment of the present disclosure provides a public transportation display system of traffic lights, including:
the traffic light signal machine is used for generating control information of the traffic light signal and sending the traffic light signal to the road side unit;
the road side unit is used for receiving the traffic light signals and sending the traffic light signals to the vehicle-mounted unit within the communication coverage range of the road side unit;
the vehicle-mounted unit is used for receiving the traffic light signals, converting the traffic light signals into visual signals and sending the visual signals to the LED display screen;
and the LED display screen is arranged on a rear window at the tail part of the bus and used for displaying traffic light state information of the intersection in a communication range of the bus.
In an optional embodiment, the LED display screen is arranged inside a bus window.
In an alternative embodiment, the road side unit is integrated with the traffic light signal machine
In an optional embodiment, the LED display screen is rectangular and equal in length to a bus window.
In an optional embodiment, the LED display screen is disposed below or behind the rear window of the rear portion of the bus.
In an optional embodiment, further comprising:
and the GPS positioning module is used for acquiring the real-time position information of the bus and sending the position information to the vehicle-mounted unit.
In an optional embodiment, the number of the LED display screens is one, and the LED display screens are used for sequentially displaying left steering information, right steering information and straight information of the vehicle.
In an optional embodiment, the number of the LED display screens is multiple, and the LED display screens are respectively used for displaying left steering information, right steering information and straight information of the vehicle.
In an optional embodiment, the LED display screen is also used to display countdown information for traffic light status.
In an optional embodiment, the on-board unit is in wireless communication connection with the LED display screen.
In an optional embodiment, the on-board unit is in wired communication connection with the LED display screen.
In an alternative embodiment, the roadside units communicate via V2X traffic light signals at a frequency of 10Hz to the on-board units of their communication coverage.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
according to the traffic light bus display system provided by the embodiment of the disclosure, the state information of the traffic light at the intersection can be displayed on the rear window at the tail part of the bus. The hidden traffic troubles caused by the fact that the front bus shields the rear bus and the rear bus cannot see the front traffic light can be avoided; traffic light information can be effectively transmitted, and the situation that the traffic lights cannot be seen clearly due to reasons such as illumination and the like is avoided. Because the bus is normally passed, the condition can be relieved, and the passing safety of the bus is greatly improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic diagram illustrating a traffic display system for traffic lights in accordance with an exemplary embodiment;
FIG. 2 is a schematic diagram illustrating a bus tail display traffic light in accordance with an exemplary embodiment.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
According to the bus road information display method and device, the traffic light state information is acquired by the road side unit of the intersection by means of the V2X bus road cooperation technology, the traffic light state information is broadcasted to surrounding buses by using the V2X standard information, the buses with the vehicle-mounted unit which has the bus road cooperation function and can be communicated with the road side unit receive the broadcast information, and the LED display screen is arranged at the tail of the bus and used for displaying the traffic light information of the front intersection. The scheme can effectively transmit traffic light signals and improve the passing safety of vehicles.
In a preferred embodiment, the road side unit and the traffic light signal may be integrated to reduce the cost of wiring and installation.
The bus display system of the traffic light provided by the embodiment of the present disclosure is described in detail below with reference to fig. 1 and fig. 2, where fig. 1 is a schematic structural diagram of a bus display system of a traffic light according to an exemplary embodiment; as shown in fig. 1, the system includes the following structure.
And the traffic light signal machine is used for generating control information of the traffic light signal and sending the traffic light signal to the road side unit within the communication coverage range.
According to the vehicle-road cooperation technology based on the V2X technology, the coverage distance of the road side unit can reach 800 m. In one possible implementation, the traffic light signal machine can generate control information of the traffic light signal, the traffic light at the intersection is controlled to change, vehicles are guided to pass through, and the traffic light signal machine is also referred to as the traffic light signal machine. In the embodiment of the disclosure, the traffic light annunciator is in communication connection with Road Side units (RSU, Road Side Unit) on both sides of the Road, for example, the traffic light annunciator can be connected with the Road Side units through wireless communication technologies such as 4G/5G, WIFI, zigbee, Lora internet of things, and the like, and the generated traffic light signal information is sent to the Road Side units. In one embodiment, the road side unit may be connected to the traffic light signal via a signal line, which is particularly suitable when the road side unit is integrated with the traffic light signal.
And the road side unit is used for receiving the traffic light signals and sending the traffic light signals to the vehicle-mounted unit.
Specifically, the roadside Unit is installed at the roadside and can communicate with an On Board Unit (OBU) through a V2X communication technology, V2X means vehicle to electrical, V2X communication technology includes DSRC communication technology and LTE-V2X communication technology, in this application, V2X includes DSRC communication technology and LTE-V2X communication technology, and in a preferred embodiment, V2X communication technology is LTE-V2X communication technology.
The received traffic light signal information is converted into a standard format of a V2X communication protocol and then broadcasted to vehicle-mounted units on surrounding buses, and the received traffic light signal information comprises timing information of each signal besides state information of a signal light, so that countdown information of the traffic light can be displayed on an LED screen.
And the vehicle-mounted unit is used for receiving the traffic light signals, converting the traffic light signals into visual signals and sending the visual signals to the LED display screen.
In the embodiment of the application, the road side unit and the vehicle-mounted unit are connected through a V2X communication technology, the road side unit is provided with a module capable of realizing V2X communication, and the vehicle-mounted unit is provided with a module capable of realizing V2X communication.
In a possible implementation mode, the vehicle-mounted unit is installed on a bus and can receive traffic light signal information sent by the road side unit, then the machine instruction is disassembled, the traffic light signal information is converted into traffic light state information which can be displayed on an LED display screen, and the visible signal is displayed on the LED display screen of the bus.
In addition, when the vehicle-mounted unit receives the traffic light signal of the road side unit and converts the traffic light signal into the display information of the LED, the indication meanings of the same traffic light information for the vehicles behind are different along with different positions of the vehicles, such as turning, passing through a crossing and the like. Therefore, the bus display system of traffic lights in the embodiment of the present disclosure further includes a GPS positioning module, which is configured to acquire the position information of the bus in real time and send the acquired position information to the on-board unit, and in a possible implementation manner, the GPS positioning module is in communication connection with the on-board unit through wireless communication technologies such as 4G/5G, WIFI, zigbee, Lora, and the like. In a possible implementation manner, the GPS positioning module is disposed at the vehicle end, and the bus display system acquires the position information of the GPS positioning module, thereby obtaining the position information of the vehicle.
After receiving the position information of the vehicle and the traffic light state information of the intersection, the vehicle-mounted unit performs fusion processing on the position information and the traffic light signals through internal application software codes and sends the processed traffic light information to the LED display screen. For example, the state information of the traffic lights starts to be displayed on the display screen at a distance of 50 meters from the intersection, and the traffic lights are turned off after the vehicle turns or passes through the intersection straight.
In one embodiment, the traffic light signal SPAT information received by the vehicle-mounted unit also comprises time information, and the vehicle-mounted unit sends the time information of the traffic light state to the LED display screen together so that the LED display screen can display countdown information of the traffic light.
In one embodiment, the frequency of the traffic light signal received by the vehicle-mounted unit is 10Hz, so that the intersection requirement can be met.
The LED display screen is arranged on the rear side of the bus and used for displaying traffic light state information of the intersection.
In a possible implementation manner, in order to conveniently display traffic light information on a bus and enable a rear vehicle to acquire a traffic light state of an intersection, an LED display screen may be set at the tail of the bus, for example, an LED display screen is set on a rear window of the bus, so that the rear vehicle can clearly see the traffic light state of the intersection.
In a possible implementation mode, the LED display screen is rectangular, the length of the LED display screen can be equal to that of a rear window of a bus, and the LED display screen can be arranged below the rear window of the bus or above the rear window of the bus.
In an optional embodiment, the number of the LED display screens is one, and the LED display screens are used for sequentially displaying left steering information, right steering information and straight information of the vehicle.
In an optional embodiment, the number of the LED display screens is multiple, and the LED display screens are respectively used for displaying left steering information, right steering information and straight information of the vehicle.
FIG. 2 is a schematic diagram illustrating a bus tail display traffic light in accordance with an exemplary embodiment. As shown in fig. 2, the LED display screen in the embodiment of the present disclosure can display left-turn information, right-turn information, and straight information of a vehicle, when the vehicle needs to turn left through an intersection, the left-turn indicator is on, when the vehicle needs to turn right through the intersection, the right-turn indicator is on, when the vehicle needs to go straight through the intersection, the straight indicator is on.
In addition, the LED display screen in the embodiment of the disclosure can display the traffic light state of the intersection and the countdown information of the traffic light state, because of the reason of the installation of the original infrastructure, many intersections do not support the countdown situation, so that the time when the vehicle passes through the intersection is not easy to grasp, and the countdown is displayed on the LED display screen at the tail of the bus, so that the occurrence of the situation can be relieved.
According to the bus display system of traffic lights provided by the embodiment of the disclosure, the space of the rear window of the bus is fully utilized, the bus is not required to be transformed, only one LED display screen is simply installed, the situation that the rear bus is shielded by the front bus, so that traffic hidden dangers caused by the fact that the rear bus cannot see the front traffic lights can be avoided, traffic light information can be effectively transmitted, and the passing safety of the bus is greatly improved.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a public transit display system of traffic lights which characterized in that includes:
the traffic light signal machine is used for generating control information of traffic light signals and sending the traffic light signals to the road side unit;
the road side unit is used for receiving the traffic light signals and sending the traffic light signals to the vehicle-mounted unit within the communication coverage range of the road side unit;
the vehicle-mounted unit is used for receiving the traffic light signals, converting the traffic light signals into visual signals and sending the visual signals to the LED display screen;
and the LED display screen is arranged on a rear window at the tail part of the bus and used for displaying traffic light state information of the intersection in a communication range of the bus.
2. The system of claim 1, wherein the LED display screen is disposed inside a bus window.
3. The system of claim 1, wherein the road side unit is integrated with the traffic light signal.
4. The system of claim 1, wherein the LED display screen is disposed below or behind a rear window of the bus.
5. The system of claim 1, further comprising:
and the GPS positioning module is used for acquiring the real-time position information of the bus and sending the position information to the vehicle-mounted unit.
6. The system of claim 1, wherein the LED display screen is one for displaying left turn information, right turn information, and straight information of the vehicle in sequence.
7. The system of claim 1, wherein the plurality of LED display screens are respectively used for displaying left steering information, right steering information and straight information of the vehicle.
8. The system of claim 1, wherein the LED display screen is further configured to display countdown information of a traffic light status.
9. The system of claim 1, wherein the on-board unit is wirelessly communicatively coupled to the LED display screen.
10. The system of claim 1, wherein the road side units communicate via V2X to send the traffic light signals to an on board unit at a frequency of 10 HZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120311374.0U CN214376955U (en) | 2021-02-03 | 2021-02-03 | Public traffic display system of traffic lights |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120311374.0U CN214376955U (en) | 2021-02-03 | 2021-02-03 | Public traffic display system of traffic lights |
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| CN214376955U true CN214376955U (en) | 2021-10-08 |
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| CN202120311374.0U Active CN214376955U (en) | 2021-02-03 | 2021-02-03 | Public traffic display system of traffic lights |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115507873A (en) * | 2022-11-03 | 2022-12-23 | 广汽埃安新能源汽车股份有限公司 | Route planning method, device, equipment and medium based on bus tail traffic light |
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2021
- 2021-02-03 CN CN202120311374.0U patent/CN214376955U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115507873A (en) * | 2022-11-03 | 2022-12-23 | 广汽埃安新能源汽车股份有限公司 | Route planning method, device, equipment and medium based on bus tail traffic light |
| CN115507873B (en) * | 2022-11-03 | 2023-03-10 | 广汽埃安新能源汽车股份有限公司 | Route planning method, device, equipment and medium based on bus tail traffic light |
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