KR20030072829A - Device and method for preventing walker traffic accident on pedestrian crossing - Google Patents

Abstract

PURPOSE: An apparatus and a method for preventing an accident of a pedestrian on a crosswalk are provided to prevent the accident of the pedestrian or a driver by installing a laser transmission device at an existing pedestrian signal lamp. CONSTITUTION: An apparatus for preventing an accident of a pedestrian on a crosswalk includes the first sensor portion(100), the second sensor portion(200), a control portion(300), and a laser output portion(400). The first sensor portion(100) outputs a sensing signal corresponding to the intensity of illumination. The second sensor portion(200) senses each state of a green lamp and a red lamp of a pedestrian signal lamp and outputs a sensing signal. The control portion(300) receives the sensing signals from the first and the second sensor portions(100,200) and outputs control signals. The laser output portion(400) receives the control signals of the control portion(300) and outputs the laser beam in response to the lighting state of the green lamp.

Description

DEVICE AND METHOD FOR PREVENTING WALKER TRAFFIC ACCIDENT ON PEDESTRIAN CROSSING}

The present invention relates to a device and method for preventing pedestrian accidents on a crosswalk, in particular, may occur due to the entry of a vehicle when a pedestrian crosses when a green light of a traffic light is lit on a pedestrian crossing installed on a road for pedestrians to cross. The present invention relates to a pedestrian accident prevention device and method on a crosswalk to prevent various accidents.

The number of vehicles increases rapidly with the growth of the national economy and the development of road traffic, and the rapid increase of such vehicles not only increases the traffic jam, but also causes the damage of people and objects caused by the increase in the proportion of vehicles. In particular, even though pedestrian traffic lights are installed on crosswalks, traffic accidents frequently occur, and children's traffic accidents occurring in front of the school are becoming more social problems.

However, despite the increase in pedestrian traffic accidents on pedestrian crossings as described above, the traffic light system that regulates vehicles and pedestrians on pedestrian crossings does not change much compared to the past, and extends the life of bulbs used for traffic lights or the brightness of traffic lights. The situation is only to improve.

In other words, the pedestrian crossing with the pedestrian traffic light as described above has a lack of visibility in traffic signals at night or during natural daytime, for example, when the road is short in the daytime, such as when the fog is heavy or there is a lot of rain. Drivers are more likely to cause traffic accidents, and pedestrians are often cross-pedestrian crossings with the green lights on, so reducing traffic accidents between vehicles and pedestrians is only possible. There was a limit.

Therefore, in recent years, various methods are used to prevent entry of vehicles on pedestrian crossings and to prevent excessive pedestrian crossing of roads. For example, separate devices for transmitting / receiving lasers are installed on both sides of the pedestrian crossing.

However, since a device for transmitting / receiving lasers on both sides of the crosswalk as described above is separately installed without using a pedestrian signal light, a large cost is incurred, and the laser transmission / receiving device is installed on the crosswalk. There was a problem that due to the installation can give a lot of inconvenience when walking pedestrians.

Accordingly, the present invention is to solve the above conventional problems, the object of the present invention is to provide a laser transmitting apparatus capable of transmitting a laser to the existing pedestrian traffic lights, while the green light of the pedestrian traffic lights By transmitting the laser corresponding to the lighting time, the pedestrian accident prevention device on the crosswalk can not only prevent the traffic accident of pedestrians due to entering the crosswalk, but also minimize the cost of installing the laser device. And a method.

In order to achieve the above object, the pedestrian accident prevention device on the crosswalk of the present invention is made of a green light and a red light so as to inform the pedestrian crosswalk walking in a pedestrian traffic light that is turned on or off,

A first sensing unit which senses illuminance of light and outputs a sensing signal corresponding thereto;

A second sensing unit which senses whether the green light or the red light of the pedestrian traffic light is turned on or off and outputs a corresponding detection signal;

A control unit which receives the sensing signals output from the first and second sensing units and outputs corresponding control signals; And

It consists of a plurality of laser output unit for receiving a control signal output from the control unit and outputs the laser in a predetermined direction corresponding to the lighting time of the green light.

On the other hand, the pedestrian accident prevention method on the crosswalk of the present invention comprises the first detection signal input determination step of determining whether or not the detection signal corresponding to the illuminance of the light from the first detection unit in the control unit;

If the detection signal corresponding to the light intensity is not input in the step of determining whether the first detection signal is input, the controller returns to the beginning, and if inputted, the controller determines whether the detected illuminance value is less than or equal to a preset illuminance value. Determining whether the detected illuminance value ≤ the set illuminance value to determine;

If the detected illuminance value ≤ the value of the illuminance detected in the determined illuminance value determining step is less than or equal to a value of a predetermined illuminance, the control unit may be configured to determine whether the green light or the red light is turned on or off from the second detection unit. A second detection signal input determination step of determining whether the detection signal is input;

In the step of determining whether the second detection signal is input or not, if the detection signal according to the lighting or turning off of the green light or the red light is not input, the process is terminated. If the green light is turned on, the control unit determines whether the green light is on or off. Steps,

A first control signal output step of outputting a control signal corresponding to the control unit when the green light is turned on in the determining whether the green light is turned on; and

The laser transmitter comprises a laser output step of receiving a control signal output from the controller and outputting a laser in a preset direction corresponding to the lighting time of the green light.

1 is a diagram showing a crosswalk in which a conventional pedestrian traffic light is installed;

Figure 2 is a block diagram showing a pedestrian accident prevention device on a pedestrian crossing according to an embodiment of the present invention,

3a and 3b is a view showing that the laser output unit is mounted inside the pedestrian traffic light in the pedestrian accident prevention device on the crosswalk according to an embodiment of the present invention,

4 is a view showing that the laser output unit is mounted to the outside of the pedestrian traffic lights in the pedestrian accident prevention device on the crosswalk according to an embodiment of the present invention,

5 is a view showing that the laser is output to the crosswalk in the pedestrian accident prevention device on the crosswalk according to an embodiment of the present invention,

6 is a flowchart illustrating a pedestrian accident prevention method on a pedestrian crossing according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: pedestrian traffic light 11: red light

12: green light 100: first detection unit

200: second detection unit 300: control unit

400: laser output unit 410: hole

420: bracket

Hereinafter, an apparatus and method for preventing a pedestrian accident on a crosswalk according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram showing a pedestrian accident prevention device on a pedestrian crossing, Figures 3a and 3b is a view showing that the laser output unit is mounted inside the pedestrian traffic lights in the pedestrian accident prevention device on a crosswalk, Figure 4 is a crosswalk In the pedestrian accident prevention device on the top is a diagram showing that the laser output unit is mounted outside the pedestrian traffic light.

In addition, Figure 5 is a view showing the laser output to the crosswalk in the pedestrian accident prevention device on the crosswalk, Figure 6 is a flow chart illustrating a pedestrian accident prevention method on the crosswalk.

2 to 5, the first sensing unit 100, the second sensing unit 200, the control unit 300 and the laser output unit 400 are configured, and the first sensing unit is shown in FIG. In operation 100, the illumination intensity of the light is detected and a corresponding detection signal is output. In the second detection unit 200, the green light 12 or the red light 11 of the pedestrian traffic light 10 is output. It detects lighting and extinction and outputs a corresponding detection signal.

In addition, the control unit 300 receives the detection signals output from the first and second detection unit 200 and outputs a control signal corresponding thereto, and the laser output unit 400 is composed of a plurality of. In response to the control signal output from the control unit 300 serves to output the laser in a predetermined direction corresponding to the lighting time of the green light (12).

Hereinafter, the operation of the pedestrian accident prevention device on the crosswalk configured as described above are as follows.

In general, pedestrian and vehicle traffic lights are installed on the crosswalk to control the pedestrian's walking and the vehicle's driving, in order to prevent traffic accidents of various persons or objects that may be caused by the driving of the vehicle. By installing a laser output device in the pedestrian traffic light 10 to prevent the entry of the crosswalk, and outputs the laser to the vehicle stop line of the crosswalk when the green light 12 of the pedestrian traffic light 10 is turned on, It is to prevent entry to the sidewalk.

That is, in order to output the laser from the laser output device according to the lighting of the green light 12 installed in the pedestrian traffic light 10 in the laser output device installed in the pedestrian traffic light 10 as described above, the first detection unit At 100, the pedestrian traffic light 10 detects the brightness of the surrounding light and outputs a corresponding detection signal.

In addition, when the second detection unit 200 detects the lighting and turning off of the green light 12 or the red light 11 installed in the pedestrian traffic light 10 and outputs a corresponding detection signal, the control unit 300. ) Receives the sensing signals output from the first and second sensing units 200 and outputs corresponding control signals.

Then, the laser output unit 400 is composed of a plurality of control signals output from the control unit 300 receives a laser output to the vehicle stop line of a predetermined direction, that is, pedestrian crossing.

On the other hand, the laser output unit 400 is coupled to one side of the pedestrian traffic light 10 to be movable is installed to adjust the angle up / down, left / right by the user's operation.

That is, as shown in Fig. 3a and 3b or 4 is installed in the plurality of holes 410 provided in the pedestrian traffic light 10 or installed outside using a separate bracket 420 (Bracket) or the like. Can be.

Meanwhile, when the pedestrian accident prevention method on the crosswalk is described in more detail as shown in FIG. 6, it is determined whether the detection signal corresponding to the illuminance of light is input from the first detection unit 100 in the control unit 300. Determine (S100).

Subsequently, when the detection signal corresponding to the illuminance of the light is not input in the first detection signal input determination step (S100), the control unit 300 returns to the beginning. It is determined whether the value is smaller than or equal to the value (S200).

In addition, when the detected illuminance value ≤ a predetermined illuminance value determining step (S200), if the detected illuminance value is less than or equal to a preset illuminance value, the control unit 300 determines from the second sensing unit 200. In operation S300, it is determined whether the detection signal corresponding to the lighting or turning off of the green light 12 or the red light 11 is input.

At this time, if the detection signal according to whether the green light 12 or the red light 11 is turned on or off is not input in the second detection signal input determination step (S300), the control unit 300 turns green. It is determined whether the lamp 12 is turned on (S400).

In addition, when the green light 12 is turned on in the determination whether the green light 12 is turned on (S400), the controller 300 outputs a control signal corresponding thereto (S500), and the laser transmitter controls the controller. In response to the control signal output from the 300 and outputs the laser to the vehicle stop line of the predetermined direction, that is, the crosswalk, corresponding to the lighting time of the green light 12 (S600).

Meanwhile, when the detected illuminance value ≤ the set illuminance value determining step (S200) is greater than the value of the preset illuminance, the controller 300 outputs a control signal corresponding thereto (S210). The laser output unit 400 receives the control signal output from the control unit 300 to block the laser output (S220).

In addition, when the green light 12 is turned off in the determination whether the green light 12 is turned on (S400), the control unit 300 outputs a control signal corresponding thereto (S410), and the laser output unit 400. In operation S420, the laser signal is blocked by receiving the control signal output from the controller 300.

As described above, the apparatus and method for preventing pedestrian accidents on the crosswalk according to the present invention include a laser transmitting apparatus capable of transmitting a laser to an existing pedestrian traffic light, and at the time when the green light of the pedestrian traffic light is turned on. Corresponding laser transmission not only prevents driver accidents and prevents pedestrian traffic accidents caused by pedestrian crossings, but also minimizes the cost of installing laser devices. Excellent effect.

Claims (5)

In the pedestrian traffic lights that are turned on or off by green and red lights to inform the pedestrians walking A first sensing unit which senses illuminance of light and outputs a sensing signal corresponding thereto; A second sensing unit which senses whether the green light or the red light of the pedestrian traffic light is turned on or off and outputs a corresponding detection signal; A control unit which receives the sensing signals output from the first and second sensing units and outputs corresponding control signals; And The pedestrian accident prevention device on a pedestrian crossing, comprising a plurality of laser output unit for receiving a control signal output from the control unit and outputs the laser in a predetermined direction corresponding to the lighting time of the green light. The pedestrian accident prevention of the crosswalk according to claim 1, wherein the laser output unit is movably coupled to one side of the pedestrian traffic light so as to adjust an angle of up / down, left / right by a user's manipulation. Device. Determining whether or not a first detection signal is input from the first detection unit to determine whether a detection signal corresponding to the illuminance of the light is input; If the detection signal corresponding to the light intensity is not input in the step of determining whether the first detection signal is input, the controller returns to the beginning, and if inputted, the controller determines whether the detected illuminance value is less than or equal to a preset illuminance value. Determining whether the detected illuminance value ≤ the set illuminance value to determine; If the detected illuminance value ≤ the value of the illuminance detected in the determined illuminance value determining step is less than or equal to a value of a predetermined illuminance, the control unit may be configured to determine whether the green light or the red light is turned on or off from the second detection unit. A second detection signal input determination step of determining whether the detection signal is input; In the step of determining whether the second detection signal is input or not, if the detection signal according to the lighting or turning off of the green light or the red light is not input, the process is terminated. If the green light is turned on, the control unit determines whether the green light is on or off. Steps, A first control signal output step of outputting a control signal corresponding to the control unit when the green light is turned on in the determining whether the green light is turned on; and And a laser output step of receiving a control signal output from the controller and outputting a laser in a predetermined direction corresponding to the lighting time of the green light. The second control signal output step of claim 3, wherein if the detected illuminance value ≤ the set illuminance value determination step, the detected illuminance value is greater than a preset illuminance value, the control unit outputs a control signal corresponding thereto. ; And The laser output unit includes a first laser output blocking step of blocking the laser output by receiving the control signal output from the control unit pedestrian accident prevention method on a crosswalk. The method of claim 3, further comprising: a third control signal output step of outputting a control signal corresponding to the green light when the green light is turned off in the green light on / off determination step; And The laser output unit is a pedestrian accident prevention method for crosswalks, characterized in that the second laser output blocking step for blocking the laser output receives the control signal output from the control unit.