KR20040057072A - Apparatus for wireless control of traffic light - Google Patents

Abstract

Disclosed is a radio signal controller for a traffic light, which encodes a control signal for changing a traffic light according to the operation of a traffic police officer performing a traffic control at an intersection and transmits the control signal to a receiver along with a transmitter unique number, A transmitter receiving acknowledgment data of a control signal for changing a traffic light; If one or more transmitter unique numbers for performing wireless communication are registered in advance, and a control signal for changing a traffic light and a transmitter unique number are received from the transmitter, the transmitter registered in advance based on the transmitter unique number received from the transmitter If the transmitter is registered in advance, the control signal for changing the traffic light received from the transmitter is decoded and output to the signal controller, and the data confirming reception of the control signal for changing the traffic light. A receiver for transmitting to the transmitter; It is provided near the intersection where the traffic light is installed, and a receiver for transmitting and receiving data with a transmitter for remotely controlling the traffic light is installed at a predetermined position inside, and a control signal for changing the traffic light input from the receiver. A signal controller for controlling whether the traffic light is turned on or off; It is composed of one or more traffic lights that change the lighting and turning off state of the traffic lights under the control of the signal controller.

Therefore, the present invention not only prevents waste of manpower during traffic control, but also immediately copes with changing traffic conditions, and has a narrow occupied bandwidth by using a highly integrated single transmitting / receiving element that performs MCU function and RF function. This provides the effect of minimizing transmission loss, realizing high reliability, and minimizing power consumption.

Description

Apparatus for wireless control of traffic light}

The present invention relates to a traffic light radio control device.

More particularly, the present invention relates to a traffic light wireless control device that allows a traffic policeman remotely controlling a signal controller for controlling a traffic light wirelessly.

In general, traffic lights consist of vehicle green light, red light, yellow light and left turn light, pedestrian green light and red light and are installed on the intersection of roads or pedestrian crossings. It turns on and off automatically at intervals.

The above-mentioned signal controller switches the time to the manual mode by using the switch attached to the signal controller or the wired remote controller which is drawn out by wire according to the traffic condition. The traffic lights are turned on and off at intervals.

However, in order to operate the traffic lights by manually operating the signal controller as described above, traffic police officers have to control the lighting and the light off in the manual mode as needed where the signal controller is installed. In addition, there was a problem that the manual operation was possible only when the traffic policeman was located at the signal controller.

That is, in order to induce efficient traffic flow, two or more traffic police officers should be arranged near the center of the intersection and near the signal controller to guide traffic through the hand signal. Traffic police officers were not able to communicate properly, so it was difficult to expect smooth traffic.

SUMMARY OF THE INVENTION An object of the present invention is to provide a traffic light wireless control device that allows a traffic policeman located at a far distance to wirelessly control a signal controller for controlling a traffic light so as to solve the above problems.

Another object of the present invention, when the traffic police officer to control the signal controller wirelessly, the traffic light radio control device to select, receive and process the radio signal of the transmitter registered in the receiver so as not to interfere with the radio signal performed at the adjacent intersection To provide.

1 is a view showing a state of use of the traffic light radio control apparatus according to the present invention,

2 is a block diagram showing in detail a transmitter configuration of a traffic light wireless control apparatus according to the present invention;

3 is a block diagram showing in detail a receiver configuration of a traffic light wireless control apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

100 transmitter 110 power unit

120: key input unit 130: MCU / RF unit

140: display unit 200: receiver

210: power supply unit 220: MCU / RF unit

230: signal output unit 240: display unit

300: signal controller 400: traffic light

Traffic light wireless control apparatus according to the present invention for achieving this object, in the traffic light wireless control device that can remotely control the operation of the traffic light, according to the operation of the traffic police officer to perform the traffic control at the intersection center A transmitter which encodes a control signal for changing a traffic light and transmits it to a receiver together with a transmitter unique number and receives acknowledgment data of the control signal for changing the traffic light from the receiver; If one or more transmitter unique numbers for performing wireless communication are registered in advance, and a control signal for changing a traffic light and a transmitter unique number are received from the transmitter, the transmitter registered in advance based on the transmitter unique number received from the transmitter If the transmitter is registered in advance, the control signal for changing the traffic light received from the transmitter is decoded and output to the signal controller, and the data confirming reception of the control signal for changing the traffic light. A receiver for transmitting to the transmitter; It is provided near the intersection where the traffic light is installed, and a receiver for transmitting and receiving data with a transmitter for remotely controlling the traffic light is installed at a predetermined position inside, and a control signal for changing the traffic light input from the receiver. A signal controller for controlling whether the traffic light is turned on or off; Characterized in that it comprises one or more traffic lights for changing the lighting, lights out state of the traffic light under the control of the signal controller.

In addition, the above-described transmitter, the power supply unit for supplying the use power of the transmitter; Key input unit which outputs various key signals input by the traffic policeman to change the signal controller automatically / manually and various key signals input manually to change one or more traffic lights driven under the control of the signal controller. Wow; Encodes various key signals inputted from the key input unit to change the traffic lights together with the transmitter unique number, modulates the control signals for changing the encoded traffic lights into RF signals, and transmits them to the receiver through the antenna, and transmits the traffic from the receiver. An MCU / RF unit configured to receive acknowledgment data of a control signal for changing a traffic light and display the received acknowledgment data on a screen; The display unit displays on the screen the traffic police officer to check the key signal input through the key input unit under the control of the MCU / RF unit, and displays the acknowledgment data of the control signal for changing the traffic signal received from the receiver. It is preferable to comprise.

In addition, the above-described receiver, the power supply unit for supplying the use power of the receiver; It stores the unique number of the transmitter that can control the signal controller through wireless communication inputted by the administrator's key operation, and advances it based on the control signal and the transmitter unique number for changing the traffic signal received from the transmitter through the antenna. Check whether the transmitter is registered in the transmitter, and if the transmitter is registered in advance, the control signal for changing the traffic light received from the transmitter is demodulated, and the control signal for changing the demodulated traffic light is output to the signal controller. A MCU / RF unit for controlling to transmit the data for confirming reception of a control signal for changing a traffic light to a corresponding transmitter through an antenna; A signal output unit for outputting a control signal for changing a traffic light received from a transmitter under a control of the MCU / RF unit to a signal controller; It is preferable that the display unit displays various control signals for changing traffic signals received from the transmitter under the control of the MCU / RF unit.

Hereinafter, with reference to the accompanying drawings will be described in detail a traffic light radio control apparatus of the present invention.

1 is a view showing a state of use of the traffic light radio control apparatus according to the present invention.

As shown, the transmitter 100 encodes a transmitter unique number together with a control signal for changing the traffic light 400 according to the operation of the traffic police officer performing the traffic control at the intersection center portion, the receiver 200 as an RF signal. And receiving the acknowledgment data of the control signal for changing the traffic light 400 from the receiver 200 and displaying it on the screen so that the traffic police officer can check it.

At this time, the above-described transmitter 100 and the receiver 200 to be described later can perform two-way communication, and correct an error by processing data exchange for a transmission / reception state in a state in which the traffic police officer who operates the transmitter 100 is not aware. EOC (Error Of Correction) function can be performed.

When the receiver 200 registers one or more transmitter unique numbers for wireless communication in advance, and receives an RF signal including a control signal for changing the traffic light 400 and a transmitter unique number from the transmitter 100, First, check whether the transmitter 100 is registered in advance based on the transmitter unique number received from the transmitter 100, and in the case of the transmitter 100 registered in advance, the traffic signal received from the transmitter 100 The control signal for changing 400 is decoded and output to the signal controller 300, and the data confirming reception of the control signal for changing the traffic light 400 is transmitted to the transmitter 100.

In this case, the above-described receiver 200 checks whether the transmitter 100 is registered in advance on the basis of the transmitter unique number received from the transmitter 100, and if not the registered transmitter 100, from the transmitter 100. The control signal for changing the traffic light 400 received with the transmitter unique number is ignored. That is, it is to be not affected by the radio signals received from other transmitters performed at adjacent intersections.

In addition, the receiver 200 can register several transmitters together so that a new transmitter can be registered and used even if a particular transmitter is lost.

The signal controller 300 is provided near an intersection where the traffic light 400 such as a green / red / yellow / left turn light for a vehicle and a green / red light for a pedestrian is installed. The transmitter 100 for controlling the 400 and the receiver 200 for performing data transmission and reception are installed, and according to the control signal for changing the traffic light 400 input from the receiver 200, Control on and off.

The traffic light 400 changes the lit or unlit state of the traffic light under the control of the signal controller 300.

2 is a block diagram showing in detail a transmitter configuration of a traffic light wireless control apparatus according to the present invention.

As shown, the power supply unit 110 is a portion for supplying the use power of the transmitter 100, and typically uses a standard battery (for example, 1.5V AA).

The key input unit 120 may be configured to manually change the key signal input by the traffic police officer to change the signal controller 300 automatically or manually, and at least one traffic light 400 driven under the control of the signal controller 300. Outputs various key signals input to the MCU (Micro Controller Unit) / RF (Radio Frequency) unit 130.

MCU / RF unit 130 is a single device that can simultaneously process encoding, filtering, modulation, amplification, RF transmission and reception, etc., and various key signals for changing traffic signals 400 input from key input unit 120. Is encoded together with the transmitter unique number, modulates a control signal for changing the encoded traffic light 400 into an RF signal, and transmits the signal to the receiver 200 through an antenna, and transmits the traffic light 400 from the receiver 200. Control to receive and display the acknowledgment data of the control signal to change on the screen.

The display unit 140 displays on the screen so that the traffic police officer checks the key signal input through the key input unit 120 under the control of the MCU / RF unit 130 and changes the traffic signal received from the receiver 200. Acknowledgment data of the control signal to display on the screen so that the traffic police officer can confirm. At this time, even if the display unit 140 is not provided in the transmitter 100, the operation of the transmitter 100 has no significant effect.

3 is a block diagram showing in detail a receiver configuration of a traffic light wireless control apparatus according to the present invention.

As shown, the power supply unit 210 is a portion for supplying the use power of the receiver 200, using a standard battery (for example, 1.5V AA) or power supplied from the signal controller 300.

The MCU / RF unit 220 is a single device that can simultaneously process amplification, mixing, filtering, demodulation, and RF transmission and reception. The MCU / RF unit 220 is a wireless device that is input according to a key operation of a manager (for example, a traffic police officer). Stores a unique number of the transmitter 100 that can control the signal controller 300, and in advance based on the control signal and the transmitter unique number for changing the traffic light 400 received from the transmitter 100 through the antenna Check whether the transmitter 100 is registered, and in the case of the transmitter 100 registered in advance, demodulating a control signal for changing the traffic light 400 received from the transmitter 100, and demodulating the traffic light. Control to output a control signal for changing the 400 to the signal controller 300, and transmits data confirming the reception of the control signal for changing the traffic light 400 to the transmitter 100 through the antenna.And control.

The signal output unit 230 outputs a control signal for changing the traffic light 400 received from the transmitter 100 to the signal controller 300 under the control of the MCU / RF unit 220.

The display unit 240 displays various control signals for changing the traffic light 400 received from the transmitter 100 under the control of the MCU / RF unit 220 on the screen.

Next, the operation of the traffic light radio control apparatus according to the present invention configured as described above will be described in detail.

First, a key input is performed to change the traffic light 400 through the key input unit 120 of the transmitter 100 possessed by the traffic police officer who controls the traffic light 400 for smooth traffic flow at the center of an intersection. In this case, the MCU / RF unit 130 of the transmitter 100 transmits an RF signal encoded with the corresponding key signal together with the transmitter unique number to the receiver 200 through an antenna.

Then, the MCU / RF unit 220 of the receiver 200 provided in the signal controller 300 receives the control signal and the transmitter unique number for changing the traffic light 400 according to the operation of the traffic police officer, Check whether the transmitter 100 is registered in advance based on the transmitter unique number.

As a result of the check, in the case of the transmitter 100 registered in advance, the MCU / RF unit 220 of the receiver 200 demodulates and demodulates a control signal for changing the traffic light 400 received from the transmitter 100. The control signal for changing the traffic light 400 is output to the signal controller 300 through the signal output unit 230. At this time, if the transmitter 100 that transmits the control signal for changing the traffic light 400 is not the registered transmitter 100, the receiver 200 changes the traffic light 400 received from the transmitter 100. It ignores the control signal to prevent from being affected by the radio signal received from other transmitters performed at adjacent intersections.

In addition, the signal controller 300 that receives the control signal for changing the traffic light 400 input from the receiver 200 confirms what command the traffic police officer operating the transmitter 100 has given, and the corresponding command. According to the traffic light 400, the lighting is turned off.

As described above, according to the traffic light wireless control device of the present invention, by controlling the traffic light remotely in accordance with the transmitter operation of the traffic police officer to perform the traffic control, the traffic police officer does not need to be disposed in the signal controller, the manpower during traffic control Not only can waste be prevented, but it also has the effect of immediately responding to traffic conditions that change frequently.

In addition, by using a single highly integrated transceiver that performs MCU and RF functions, a wide band (300MHz to 1GHz) can be used, and a large amount of channels are secured with a narrow occupied bandwidth to minimize transmission loss and provide high reliability. It is effective in minimizing the power consumption.

In addition, by selecting the radio signal of the transmitter registered in the receiver installed in the signal controller to control traffic lights, the new transmitter is registered even if the transmitter is lost without being affected by the transmitter performed at the adjacent intersection. It can be used to effect.

Herein, while the present invention has been described with reference to the preferred embodiments, those skilled in the art will variously modify the present invention without departing from the spirit and scope of the invention as set forth in the claims below. And can be changed.

Claims (4)

In the traffic light wireless control device that can remotely control the operation of the traffic light, Encodes the control signal for changing the traffic light according to the operation of the traffic police officer who performs the traffic control at the center of the intersection, and transmits it to the receiver along with the transmitter unique number, and receives the acknowledgment data of the control signal for changing the traffic light from the receiver. Receiving transmitter; If one or more transmitter unique numbers for performing wireless communication are registered in advance, and a control signal for changing a traffic light and a transmitter unique number are received from the transmitter, the transmitter unique number is registered in advance based on the transmitter unique number received from the transmitter. Check whether the transmitter is a transmitter, and if the transmitter is registered in advance, the control signal for changing the traffic light received from the transmitter is decoded and output to the signal controller, and the reception of the control signal for changing the traffic light is confirmed. A receiver for transmitting data to a corresponding transmitter; It is provided in the vicinity of the intersection where the traffic light is installed, and a receiver for performing data transmission and reception with a transmitter for remotely controlling the traffic light is installed at a predetermined position therein, and the control for changing the traffic light input from the receiver. A signal controller for controlling the turning on and off of the traffic lights according to the signal; And Traffic light wireless control device, characterized in that it comprises one or more traffic lights for changing the lighting state, the light-off state in accordance with the control of the signal controller. The method of claim 1, wherein the transmitter, A power supply unit supplying power for use of the transmitter; Keys for outputting key signals inputted by the traffic policeman to change the signal controller automatically / manually and various key signals inputted manually to change one or more traffic lights driven under the control of the signal controller to the MCU / RF unit. An input unit; Encoding various key signals inputted to change the traffic lights from the key input unit with the transmitter unique number, modulates the control signals for changing the encoded traffic lights into RF signals and transmits them to the receiver through an antenna. An MCU / RF unit configured to receive acknowledgment data of a control signal for changing a traffic light from a receiver and display the received acknowledgment data on a screen; And Under the control of the MCU / RF unit, the traffic police officer displays on the screen to confirm the key signal input through the key input unit, and the acknowledgment data of the control signal for changing the traffic signal received from the receiver on the screen Traffic light wireless control device comprising a display unit for displaying. The method of claim 1, wherein the receiver, A power supply unit supplying a power used for the receiver; Stores the unique number of the transmitter for controlling the signal controller through wireless communication input according to the key operation of the manager, and based on the control signal and transmitter unique number for changing the traffic signal received from the transmitter through the antenna The controller checks whether the transmitter is registered in advance, and if the transmitter is registered in advance, demodulates a control signal for changing the traffic light received from the transmitter, and controls the control signal for changing the demodulated traffic light. MCU / RF unit for controlling to output the data, and to transmit the data to confirm the reception of the control signal for changing the traffic signal to the corresponding transmitter through the antenna; A signal output unit configured to output a control signal for changing a traffic light received from the transmitter to the signal controller according to the control of the MCU / RF unit; And And a display unit for displaying various control signals for changing the traffic light received from the transmitter under the control of the MCU / RF unit. The method of claim 1 or 3, wherein the receiver, If it is determined that the transmitter is registered in advance based on the transmitter unique number received from the transmitter, Traffic light wireless control device, characterized in that for ignoring the control signal for changing the traffic light received with the transmitter unique number from the transmitter.