CN210627496U

CN210627496U - Traffic signal device

Info

Publication number: CN210627496U
Application number: CN201921805967.1U
Authority: CN
Inventors: 熊和金; 韩圣清; 唐芸
Original assignee: Wuhan University of Technology WUT
Current assignee: Wuhan University of Technology WUT
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-05-26
Anticipated expiration: 2029-10-25

Abstract

The utility model discloses a traffic signal device, include: the traffic signal device can provide real-time traffic light signals of the intersection and information of pedestrian crosswalks so that a driver can make reasonable operation; the structure is simple, the operation is convenient, the operation is reliable, and the practicability is strong.

Description

Traffic signal device

Technical Field

The utility model relates to a traffic signal technical field, concretely relates to traffic signal device.

Background

In recent years, with the development of science and technology and the wide application of science and technology in the traffic field, traffic becomes more and more convenient, and with the increase of the number of motor vehicles on roads, the road conditions become more and more complex, especially at crossroads with pedestrian crossings, the road conditions are more and more complex and changeable, and drivers cannot timely know the change of traffic lights at the crossroads in front due to the conditions that trucks shield the road or the visibility is insufficient due to severe weather.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the aforesaid current situation, provide a traffic signal device to solve above-mentioned problem.

The utility model adopts the technical proposal that:

a traffic signaling device, comprising: the traffic light comprises a control device, an infrared sensing device and a signal light mechanism, wherein the infrared sensing device is arranged at a zebra crossing, the signal light mechanism is arranged on a road and comprises a three-color traffic light and an LED light belt, the three-color traffic light is arranged at a crossing, the LED light belt is embedded in the surface of a dividing line of a right lane on the road, the control device is respectively connected with the infrared sensing device, the three-color traffic light and the LED light belt, the infrared sensing device is used for sensing pedestrians on the zebra crossing and sending signals to the control device, the control device controls the display colors of the three-color traffic light and the LED light belt, and the signal light mechanism controls the flicker frequency of the LED light belt according to the signals of the infrared sensing device.

The utility model has the effects that: the traffic signal device can provide real-time traffic light signals and pedestrian crossing line information at the intersection so that a driver can conveniently make reasonable operation; the structure is simple, the operation is convenient, the operation is reliable, and the practicability is strong.

Drawings

Fig. 1 is a schematic structural diagram of a traffic signal device provided by the present invention;

fig. 2 is a block diagram of a traffic signal apparatus according to the present invention.

Detailed Description

The traffic signal device of the present invention is described below with reference to the accompanying drawings:

as shown in fig. 1 and 2, a traffic signal device includes a control device 1, an infrared sensing device 2 disposed at a zebra crossing, and a signal lamp mechanism 3 disposed on a road, where the control device 1 is connected to the infrared sensing device 2 and the signal lamp mechanism 3, the infrared sensing device 2 is used for sensing pedestrians on the zebra crossing and sending signals to the control device 1, and the control device 1 controls the signal lamp mechanism 3 according to the signals.

In this embodiment, 8 infrared sensing devices 2 and 4 signal lamp mechanisms 3 are generally installed at the road intersection.

The infrared sensing device 2 comprises an infrared transmitter 21 and an infrared receiver 22, the infrared transmitter 21 and the infrared receiver 22 are arranged at one end of the zebra crossing, a connecting line of the infrared transmitter 21 and the infrared receiver 22 is perpendicular to the zebra crossing, and when a pedestrian walks onto the zebra crossing from one end of the zebra crossing where the infrared sensing device 2 is arranged, the infrared sensing device 2 can sense and generate signals.

The infrared emitter 21 emits single, double or even multiple beams ranging from a few meters to hundreds of meters. The infrared receiver 22 mainly comprises an optical lens, an infrared photoelectric tube, an amplifying and shaping circuit, a power driver and an actuating mechanism.

The infrared transmitter 21 and the infrared receiver 22 are respectively connected to the control device 1.

In this embodiment, 2 infrared sensing devices 2 are respectively disposed at two ends of the zebra crossing, so that pedestrians at two ends of the zebra crossing can be detected.

The signal lamp mechanism 3 comprises a three-color traffic lamp 31 and an LED lamp strip 32, and the three-color traffic lamp 31 is arranged at the intersection; the LED lamp strip 32 is embedded on the surface of the dividing line of the right lane on the road; the three-color traffic light 31 and the LED strip 32 are connected to the control device 1, and the control device 1 can control the colors of the three-color traffic light 31 and the LED strip 32 and the flashing frequency of the LED strip 32.

The control device 1 adopts a loop-series FPGA as a control chip, can control the colors of the three-color traffic light 31 and the LED light strip 32 in real time, and the FPGA chip has a powerful frequency division function, so that when a pedestrian enters a pedestrian crossing line, the FPGA chip can control the LED light strip 32 to flicker, and the flicker frequency is higher along with the increase of the pedestrian.

The flicker frequency of the LED lamp strip 32 controlled by the FPGA chip is set within the range of not less than 2Hz and not more than 10 Hz. The FPGA circuit does not use an operating system, so that the stability is greatly improved; the FPGA chip can adapt to the modification required by development, and a user can enhance the required functions without redesigning hardware or modifying a circuit board, so that the FPGA chip is convenient for long-term maintenance.

The embedding length of the LED lamp strip 32 is within the range of 10 meters to 20 meters, the hidden heat dissipation danger caused by overlong is avoided, and the model with a large size patch and a high luminous flux value and lumen number is selected to achieve high brightness, such as 5050, 3014, 3528 and the like; the LED lamp strip with the silica gel packaging mode is selected in consideration of heat dissipation, and the safety factor is higher in the intersection traffic signal indicating process.

After a pedestrian passes through, because infrared ray is sheltered from, infrared receiver 22 can not receive infrared ray, the FPGA chip detect infrared receiver 22 does not receive infrared ray, then judge that there is the pedestrian to enter into the pedestrian crossing line region, no matter at present the state of three-colour traffic light 31, the FPGA chip can all control LED lamp area 32 begins to blink, and the more people that pass through in a certain period of time, the higher the frequency that LED lamp area 32 flickers is controlled by control module. Besides, in order to prevent false alarm caused by pets, small animals and the like, the infrared transmitter 21 and the infrared receiver 22 are generally arranged at a distance of not less than 50cm from the ground.

The flicker frequency of the LED lamp strip 32 is 1Hz within the last 10 seconds of the red light and green light time period when no pedestrian passes through, namely, the LED lamp strip 32 flickers once per second, and when a pedestrian passes through, the flicker frequency is larger than 1 Hz.

The signal connecting wire is a connecting wire with a waterproof function and is used for connecting the control device 1, the infrared induction device 2 and the signal lamp mechanism 3. The connecting line should also have a high toughness, since it is to be laid under the road.

The traffic signal device can provide real-time traffic light signals and pedestrian crossing line information at the intersection so that a driver can conveniently make reasonable operation; the structure is simple, the operation is convenient, the operation is reliable, and the practicability is strong.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A traffic signal apparatus, comprising: the traffic light comprises a control device, an infrared sensing device and a signal light mechanism, wherein the infrared sensing device is arranged at a zebra crossing, the signal light mechanism is arranged on a road and comprises a three-color traffic light and an LED light belt, the three-color traffic light is arranged at a crossing, the LED light belt is embedded in the surface of a dividing line of a right lane on the road, the control device is respectively connected with the infrared sensing device, the three-color traffic light and the LED light belt, the infrared sensing device is used for sensing pedestrians on the zebra crossing and sending signals to the control device, the control device controls the display colors of the three-color traffic light and the LED light belt, and the signal light mechanism controls the flicker frequency of the LED light belt according to the signals of the infrared sensing device.

2. The traffic signaling device of claim 1 wherein said infrared sensing device comprises an infrared transmitter and an infrared receiver, said infrared transmitter and said infrared receiver being disposed at one end of the zebra crossing, said infrared transmitter and said infrared receiver being connected perpendicular to the zebra crossing.

3. The traffic signal apparatus of claim 2, wherein 2 infrared sensing means are provided at both ends of the zebra crossing, respectively, whereby pedestrians at both ends of the zebra crossing can be detected.

4. The traffic signal device of claim 3, wherein the control device employs a loop-series FPGA chip, and the flicker frequency of the LED strip controlled by the FPGA chip is set within a range of not less than 2Hz and not more than 10 Hz.