KR200178347Y1 - Traffic signal light controlling system - Google Patents

Abstract

The present invention relates to a vehicle traffic light control system, and more particularly, traffic lights such as red light, green light, yellow light, arrow light, pedestrian crossing red light and green light, etc. according to the time received through the satellite. The present invention relates to a traffic light control system for automobiles. This invention is a GPS satellite for transmitting the time data of the correct time; And a traffic signal controller for controlling the adjacent intersection with the time data transmitted from the GPS satellites, and by performing periodic control of the traffic signals according to the time data received together with the position data of the satellite, The effect of turning on and / or turning off the traffic light can be obtained.

Description

Traffic light control system for automobiles {TRAFFIC SIGNAL LIGHT CONTROLLING SYSTEM}

The present invention relates to a vehicle traffic light control system, and more particularly, traffic lights such as red light, green light, yellow light, arrow light, pedestrian crossing red light and green light, etc. according to the time received through the satellite. The present invention relates to a traffic light control system for automobiles.

As the number of driver licensees and cars increased rapidly, the demand for road traffic increased, resulting in traffic congestion or congestion on the road. For this reason, there is a strong demand for the construction of a system that allows a motorist to obtain traffic information on a driving route and select a road to drive each vehicle for efficient road driving.

However, such traffic congestion and congestion is often caused by frequent breakdowns and malfunctions of traffic lights.

A general traffic signal controller is a device installed at an intersection or a crossroad to control traffic signals. An intelligent central processor using a microprocessor in a enclosure equipped with a waterproof facility, an error detection unit capable of detecting abnormal operation of the controller, A traffic light driver for driving traffic lights and a manual control switch that can be operated by the traffic police department.

Since the traffic signal controller is always exposed to the external environment, it is necessary to construct a circuit using semi-permanent semiconductor elements that are resistant to changes in temperature and humidity, and further includes a protection circuit to minimize damage such as overvoltage and lightning. .

In addition, the traffic signal controller further includes a ROM (ROM) for programming essential functions and a RAM (RAM) for storing data. The ROM is provided to facilitate modification when upgrading various functions of the ROM, and the RAM includes a time of date. ) It is equipped to store various data such as programs. In addition, a power backup circuit using a battery is further included in preparation for volatility during a power failure of the RAM.

The signal control function of the traffic signal controller includes a signal time data set by an traffic control control method in which a signal time for each direction is changed according to information input from a vehicle detector installed at an intersection and pre-investigated traffic volume information. It is divided into Timed Control (TBC: Time Based Coodination) method which is controlled in conjunction with the adjacent intersection by all data and clock kept by the local controller itself.

In the traffic light controller controlled by the constant period control method as described above, the time data usually gives an accurate time at the FM radio frequency. That is, the traffic light controller includes a receiver and an output unit for receiving the FM radio frequency supplied in such a pulse form.

However, in the traffic light controller using the FM radio frequency, an error of the correct time data is generated because it is received by the FM radio frequency, and an error in the operation of the traffic light controller due to the error of the time data causes traffic congestion on the road. There was a problem that often caused congestion.

The present invention is to solve such a problem, the object of the present invention is to control the traffic lights by receiving time data from the satellite, the traffic lights are controlled in accordance with the accurate time data traffic on the road due to bad traffic lights An object of the present invention is to provide a traffic light control system for cars to prevent congestion and congestion.

Vehicle traffic light control system according to the present invention for achieving the above object, GPS satellites for transmitting the time data of the correct time; And a traffic signal controller controlling the adjacent intersection with the time data transmitted from the GPS satellite.

1 is a block diagram showing the configuration of a traffic light control system for a vehicle according to the present invention.

<Explanation of symbols for main parts of drawing>

10: GPS satellite 100: traffic light controller

110: central processing unit 120: vehicle detection unit

130: interface unit 140: maintenance and repair unit

150: GPS terminal 160: power unit

170: signal controller 180: traffic light driver

200: traffic lights

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing the configuration of a vehicle traffic light control system according to the present invention, wherein the vehicle traffic light control system 100 that is turned on and / or turned off in accordance with the data supplied from the GPS satellite 10 is the center, Processing unit 110, vehicle detection unit 120, interface unit 130, maintenance and repair unit 140, GPS (Global Positioning Satellite Technique) terminal 150, power supply unit 160, signal control unit 160, and traffic light driver ( 170).

Here, the central processing unit 110 is a clock provided with a highly reliable Real Time Clock (RTC) chip, which is not affected by temperature, humidity, vibration, RAM, which stores periodic data such as dots and lights of traffic lights, And a ROM in which a program capable of manual control and / or sensitive control is built.

The vehicle detecting unit 120 is connected to a loop coil embedded in a road to detect an electrical change of the roof coil to detect the presence and passage of the vehicle.

In addition, the interface unit 130 is provided to input or modify data necessary for the traffic signal controller and display the current state of the current traffic signal controller.

The maintenance unit 140 is provided to receive the FM frequency transmitted from the actual broadcasting station, and to supply the time signal to the central processing unit 110.

In addition, the GPS terminal 150 is configured to digitally receive the standard time from the location tracking satellite and to supply the central processing unit 110.

The power supply unit 160 is provided to receive the AC power and convert it into a stable DC voltage and supply it to each device, and further includes a separate backup battery for smoothly manipulating traffic signals in case of power failure.

In addition, the signal controller 170 receives a control signal from the central processing unit 110 and outputs a driving signal for manipulating a traffic signal, and the signal lamp driver 180 receiving the driving signal receives a red light according to the driving signal. And yellow, green, pedestrian crossing red and green lights.

In the traffic light control system provided as described above, a process of controlling in a timed control method controlled from signal time data set by the pre-investigated traffic volume information will be described first.

The time signal received through the FM frequency is supplied to the maintenance unit 140, the maintenance unit 140 receives the time. On the other hand, the data received via the satellite is received via the GPS terminal 150, the GPS terminal 150 receiving the data amplifies after detecting the time data of the plurality of received data.

The amplified time data is supplied to the central processing unit 110, and the central processing unit 110 receiving the time data outputs a control signal for turning on and / or turning off the traffic light 200 according to the time data. Here, the traffic light is controlled according to the program and data stored in the central processing unit 110, the green light for 0 seconds-255 seconds, the yellow light for 0 seconds-9.9 seconds, the pedestrian traffic light for 0 seconds-99 seconds (crosswalk) Lights up and / or off depending on the program.

The signal controller 170 receiving the control signal of the central processing unit 110 outputs a driving signal for driving the traffic light according to the control signal of the central processing unit 110, and the signal lamp driving unit 180 receiving the driving signal receives the control signal. A switching signal is generated according to the drive signal. In this case, the central processing unit 110 is supplied with the power of the power supply unit 160, while the power of the backup battery of the power supply 160 is supplied at the time of power failure.

Meanwhile, the interface unit 130 receiving the control signal displays the control signal output from the central processing unit 110 on the screen, and centralizes the manual control signal when the manual control signal is input from the outside, for example, manually. It is supplied to the processing unit 110, and at the same time it is displayed so that the operator can visually recognize the manual control signal. The central processing unit 110 supplies a manually operated manual control signal to the signal controller 170.

Meanwhile, the vehicle detecting unit 120 detects the number of vehicles passing through the road, and the central processing unit 110 receiving the detected vehicle data controls the traffic light 200 in a traffic sensitive manner according to the vehicle data. Signal control unit 170 and the traffic light driver 180 receives the control signal and outputs the driving signal and the switching signal to drive the traffic light 200, respectively.

As described above, according to the present invention, the periodic control of the traffic light is performed according to the time data received together with the position data of the satellite, thereby obtaining the effect of turning on / off the correct traffic light.

Claims (2)

GPS satellites to transmit time data of the correct time; And Traffic signal control system comprising a traffic signal controller for receiving in accordance with the time data of the data transmitted from the GPS satellite, and controlling in conjunction with the adjacent intersection in accordance with the received time data. The method of claim 1, wherein the traffic signal controller A GPS terminal that receives data supplied from the GPS satellites, detects time data, and amplifies the time data; RAM that stores periodic data such as point and light of traffic light, and ROM which has a program which can perform manual control and / or inductive control, is provided, and according to time data supplied from the GPS terminal, A central processing unit generating a control signal for controlling; A vehicle detection unit connected to a loop coil embedded in a road to detect an electrical change of the roof coil to detect the presence and passage of the vehicle; An interface unit for inputting or modifying data required for the traffic signal controller and displaying a current state of the current traffic signal controller; A maintenance unit which receives an FM frequency transmitted from an actual broadcasting station and supplies this signal to the central processing unit; A power supply unit including an auxiliary battery for receiving an AC power, converting it into a stable DC voltage, supplying it to each device, and smoothly manipulating a traffic signal in the event of a power failure; A signal controller which receives a control signal of the central processor and outputs a driving signal for manipulating a traffic light; And And a traffic light driver for causing a red light, a yellow light, a green light, a red light and a green light of a pedestrian crossing to be turned off and / or off according to the driving signal.