KR102472223B1 - Apparatus of safety crossing for crosswalk) - Google Patents

Abstract

Pedestrian safety devices for crosswalk traffic lights,
When a safety bar used in a conventional pedestrian safety device regulates crossing of a crosswalk, it rotates left and right based on the same center position to create a first blocking state in a preset vehicle stop area and a second blocking state in a preset pedestrian stop area. By having both, it is possible to control the progress of pedestrians and the progress of vehicles.
And, in this case, the control unit has the following configuration.
a) When a green signal is input from the crosswalk traffic light, the safety bar controls driving operation of the safety bar in positive left and right turns from the pedestrian stop area to the vehicle stop area so that the safety bar has a first blocking state.
b) On the other hand, when a red signal is input from the crosswalk traffic light, the safety bar controls the driving operation of the safety bar in negative (-) left and right turns from the vehicle stop area to the pedestrian stop area so that the safety bar has a second blocking state. By doing so, it is characterized in that the progress of the pedestrian and the progress of the vehicle are intermittently controlled.

Description

Crosswalk Traffic Light Pedestrian Safety Device {APPARATUS OF SAFETY CROSSING FOR CROSSWALK)}

Disclosed herein relates to the field of safety barrier technology, and more particularly, to a technology for effectively controlling a pedestrian attempting to cross a crosswalk and a vehicle attempting to pass through a crosswalk.

Unless otherwise indicated herein, material described in this section is not prior art to the claims in this application, and inclusion in this section is not an admission that it is prior art.

In general, in a crosswalk, a pedestrian signal light provided on the sidewalk to inform pedestrians of a walking signal, a driver signal light provided to inform a driver of a vehicle of a signal state of a crosswalk, and a user for a certain period of time when the pedestrian is walking It consists of a signal controller that controls the operation of the pedestrian traffic light and the driver traffic light so as to cross the crosswalk, and controls the movement of pedestrians and vehicles.

As described above, on a road with a conventional crosswalk, a vehicle driving on the road recognizes when the driver's traffic light turns yellow or red, steps on the brake to stop the car at the vehicle stop line of the crosswalk, and pedestrians turn on the green light of the pedestrian traffic light to cross along the crosswalk. However, as described above, the conventional crosswalk signal device allows the driver to check the pedestrian signal at the crosswalk only through the driver's traffic light. Accidents occur frequently without stopping the vehicle, and when the pedestrian traffic light at the crosswalk blinks, many drivers slowly move the vehicle regardless of the pedestrian, making the pedestrian feel anxious, but this problem cannot be limited. there was

In addition, on roads frequently used by young students, such as crosswalks in front of schools, parents or teachers use flags to help children crossing the crosswalk safely when leaving school, but there is a problem in raising and lowering the flags manually. In addition, there is a problem in that there is always a risk of traffic accident if there is no controller such as parents or teachers who can directly control the crosswalk.

1. Korean Registration No. 10-1838879 2. Domestic Publication No. 1--2017-0019842

The disclosed content provides a crosswalk signal light pedestrian safety device that allows the driver to stop the vehicle at the stop line at the stop signal so that the pedestrian crossing the crosswalk does not feel threatened, and the pedestrian can safely cross the crosswalk at the walking signal. want to do

The crosswalk traffic light pedestrian safety device according to the embodiment,

When a safety bar used in a conventional pedestrian safety device regulates crossing of a crosswalk, it rotates left and right based on the same center position to create a first blocking state in a preset vehicle stop area and a second blocking state in a preset pedestrian stop area. By having both, it is possible to control the progress of pedestrians and the progress of vehicles.

And, in this case, the control unit has the following configuration.

a) When a green signal is input from the crosswalk traffic light, the safety bar controls driving operation of the safety bar in positive left and right turns from the pedestrian stop area to the vehicle stop area so that the safety bar has a first blocked state.

b) On the other hand, when a red signal is input from the crosswalk traffic light, the safety bar controls the driving operation of the safety bar in negative (-) left and right turns from the vehicle stop area to the pedestrian stop area so that the safety bar has a second blocking state. By doing so, it is characterized in that the progress of the pedestrian and the progress of the vehicle are intermittently controlled.

According to the embodiments, the driver makes the vehicle stop at the stop line at the stop signal so that the pedestrian crossing the crosswalk does not feel threatened, and the pedestrian crosses the crosswalk safely at the walking signal.

1 is a conceptual diagram schematically illustrating a pedestrian safety device for a crosswalk traffic light according to an embodiment;
Figure 2 is a view showing a system as a whole to which a pedestrian safety device for a crosswalk traffic light according to an embodiment is applied
3 is a block diagram showing the configuration of a pedestrian safety device for a crosswalk traffic light in FIG. 2;
Figure 4 is a flow chart showing the operation of the pedestrian safety device of the crosswalk traffic light in Figure 2 in order
5 is a view for explaining a pedestrian safety device according to an embodiment different from the pedestrian safety device for a crosswalk traffic light of FIG. 2;
Figure 6 is a view for explaining the pedestrian safety device of Figure 5 and the pedestrian safety device according to another embodiment

1 is a conceptual diagram schematically illustrating a pedestrian safety device for a crosswalk traffic light according to an embodiment.

As shown in FIG. 1, the pedestrian safety device according to one embodiment basically operates the safety bar according to the crosswalk traffic light in the control unit when crossing the crosswalk 30 as in the prior art, thereby driving the pedestrian. to control progress.

In this state, the pedestrian safety device according to an embodiment is for the safety bar to control a pedestrian trying to cross the crosswalk 30 according to the lighting state of the traffic light 10 or 20, for example, the pedestrian traffic light ( If 10) is red, cross the pedestrian stop area.

On the other hand, in the pedestrian safety device, the safety bar crosses the vehicle stop area when the pedestrian traffic light 10 is green, that is, the area corresponding to the vehicle stop line on the road.

Therefore, through this, the driver stops the vehicle at the stop line at the stop signal so that the pedestrian crossing the crosswalk does not feel threatened, and the pedestrian safely crosses the crosswalk at the walking signal.

For reference, in this case, the pedestrian safety device recognizes the lighting state of at least one of the traffic lights located around the crosswalk 30, that is, the pedestrian traffic light 10 and the traffic light 20, and crosswalk 30 It is possible to detect the color of the pedestrian traffic lights 10 (or crosswalk traffic lights) located at both ends of the traffic lights 20 that control the passage of vehicles.

For example, when the pedestrian safety device detects the color of the pedestrian traffic lights located at both ends of the crosswalk 30, the color of any one of the pedestrian traffic lights located at both ends of the crosswalk 30 is red. detect if it is a signal

2 is a diagram showing a system as a whole to which a pedestrian safety device for a crosswalk traffic light according to an embodiment is applied.

As shown in FIG. 2, in the pedestrian safety device for crosswalk traffic lights according to an embodiment, when the safety bar controls crossing the crosswalk, the safety bar rotates left and right based on the same central position to block the first vehicle in a preset vehicle stop area. By having both the state and the second blocking state in the preset pedestrian stop area, it is possible to control the progress of pedestrians and vehicles.

In this case, the control unit 200 has the following configuration.

a) When a green signal is received from the crosswalk traffic light 10, the safety bar controls the driving operation of the safety bar in a positive (+) left and right turn from the pedestrian stop area to the vehicle stop area so that the safety bar has a first blocking state. do.

Therefore, through this, the driver stops the vehicle at the stop line, so that pedestrians crossing the crosswalk do not feel threatened and safely cross the crosswalk at the walking signal.

b) On the other hand, when a red signal is input from the crosswalk traffic light 10, the safety bar is driven in a negative (-) left and right turn from the vehicle stop area to the pedestrian stop area so that the safety bar has a second blocking state. By controlling the operation, the progress of the pedestrian and the progress of the vehicle are intermittently controlled.

Thus, it prevents pedestrians from safely crossing the crosswalk.

3 is a block diagram showing the configuration of a pedestrian safety device for a crosswalk traffic light in FIG. 2 .

As shown in FIG. 3, the pedestrian safety device for crosswalk traffic lights in FIG. 2 includes one integrated motor 230 for rotating the safety bar left and right.

And, in this case, the control unit has the following configuration.

a) When a green signal is input from the crosswalk traffic light, the integrated motor is rotated forward (+) from the pedestrian stop area to the vehicle stop area so that the safety bar has a first blocking state.

b) On the other hand, when a red signal is input from the crosswalk traffic light, the integrated motor 230 rotates in a reverse (-) direction from the vehicle stop area to the pedestrian stop area so that the safety bar has a second blocking state. , and control the progress of pedestrians and vehicles.

In addition, in the pedestrian safety device for crosswalk traffic lights in FIG. 2, the control unit is more specifically configured to receive the color signal of the crosswalk traffic light, the D/I module 210, and the above-described safety safety device according to the color signal of the crosswalk traffic light. It includes a control unit 220 that controls the driving operation of the bar.

Additionally, the control unit further includes a power supply unit 240.

In this case, according to an embodiment, the control unit can efficiently supply power to each part of the pedestrian safety device according to the embodiment.

To this end, the control unit includes a tuning coil for storing electromagnetic energy according to the input color signal and a transformer for stepping up the electromagnetic energy stored by the tuning coil when the color signal from the crosswalk traffic light is input. .

Therefore, the power supply unit 240 additionally supplies the electromagnetic energy boosted by the transformer as power for driving the safety bar or additionally supplies it as driving power for each unit described below.

In addition, the pedestrian safety device further includes at least one LED lamp 250 embedded in the safety bar and emitting light. And, in this case, the control unit differently controls the light emitting operation of the LED lamp 250 according to the different color signal of the crosswalk traffic light.

Additionally, the pedestrian safety device includes a storage unit (not shown) for storing preset different guide voices corresponding to different color signals of the crosswalk traffic lights, and a voice output means 260 for outputting the guide voice. contains more

On the other hand, in addition to this, the safety bar may generate an alarm when a pedestrian approaches closely to protect the pedestrian from impact or the like of the pedestrian.

To this end, the safety bar further includes a first proximity sensor 270 installed at a portion facing the pedestrian's traveling direction to detect the pedestrian.

Also, when a pedestrian is detected by the first proximity sensor 270, the control unit controls the audio output operation of the audio output means 260 to generate a preset alarm.

In other words, the pedestrian safety device for crosswalk traffic lights is made modular in PLC form so that additional functions such as environment monitoring around traffic lights and easy information input/output expansion can be performed.

For example, in the crosswalk traffic light pedestrian safety device, the control unit has the following configuration.

a) a power module that integrally supplies power from the aforementioned power supply unit to each unit;

b) Serial communication module with external control unit;

c) an A/I module that integrally inputs and processes analog detection information such as fine dust detection information by sensors around traffic lights;

d) an A/O module that integrally outputs various analog information;

e) an A/D module that integrally converts analog information input from the A/I module into digital information;

f) D/A module that converts various digital information into analog information integrally;

g) a D/I module that integrally inputs and processes digital information including the crosswalk traffic lights;

h) a D/O module that outputs various digital information integrally to an external control device such as a fine dust reduction device; and

i) a CPU module that controls each module as a whole;

Therefore, through such a modular configuration, the above-described crosswalk traffic light pedestrian safety device facilitates additional functions such as environment monitoring around traffic lights and easy input/output expansion.

Figure 4 is a flow chart showing the operation of the pedestrian safety device of the crosswalk traffic light shown in Figure 2 in order.

As shown in FIG. 4, the crosswalk traffic light pedestrian safety device of FIG. 2 basically operates the safety bar according to the crosswalk traffic light in the control unit when crossing the crosswalk as in the prior art, thereby driving the pedestrian progress. is premised on controlling

In this state, the crosswalk traffic light pedestrian safety device of FIG. 2 turns left and right based on the same central position when the safety bar controls crossing the crosswalk, and the first blocking state and the preset pedestrian stop in the preset vehicle stop area By simultaneously having the second blocked state in the area, it is possible to control the progress of pedestrians and vehicles.

In this case, the control unit performs the following operations.

a) When a green signal is received from the crosswalk traffic light (S401), the safety bar controls the driving operation of the safety bar in a positive (+) left and right turn from the pedestrian stop area to the vehicle stop area so that the safety bar has a first blocking state. It does (S402).

So, through this, the safety bar is driven (S403), and the driver crosses the crosswalk safely at the walking signal without feeling threatened by the pedestrian crossing the crosswalk by having the driver stop the vehicle at the stop line.

b) On the other hand, when a red signal is received from the crosswalk traffic light (S401), the safety bar is driven in a negative (-) left and right turn from the vehicle stop area to the pedestrian stop area so that the safety bar has a second blocking state. By controlling the operation (S404), the progress of the pedestrian and the progress of the vehicle are intermittently controlled.

So, through this, the safety bar is driven (S403) to prevent pedestrians from safely crossing the crosswalk.

Therefore, through this, the driver stops the vehicle at the stop line at the stop signal so that the pedestrian crossing the crosswalk does not feel threatened, and the pedestrian safely crosses the crosswalk at the walking signal.

As described above, in one embodiment, when a safety bar used in a conventional pedestrian safety device regulates crossing of a crosswalk, it rotates left and right based on the same center position to prevent the first blocked state and the preset pedestrian in a preset vehicle stop area. By having the second blocking state in the stop area in combination, it is possible to control the progress of pedestrians and vehicles.

And, in this case, the control unit has the following configuration.

a) When a green signal is input from the crosswalk traffic light, the safety bar controls driving operation of the safety bar in positive left and right turns from the pedestrian stop area to the vehicle stop area so that the safety bar has a first blocking state.

b) On the other hand, when a red signal is input from the crosswalk traffic light, the safety bar controls the driving operation of the safety bar in negative (-) left and right turns from the vehicle stop area to the pedestrian stop area so that the safety bar has a second blocking state. By doing so, the progress of pedestrians and the progress of vehicles are intermittently controlled.

Therefore, through this, the driver stops the vehicle at the stop line at the stop signal so that the pedestrian crossing the crosswalk does not feel threatened, and the pedestrian safely crosses the crosswalk at the walking signal.

5 is a view for explaining a pedestrian safety device according to a different embodiment from the pedestrian safety device for a crosswalk traffic light of FIG. 2 .

As shown in Figure 5, the pedestrian safety device according to this other embodiment is to embed LED lights in the safety bar itself to improve visibility.

To this end, the pedestrian safety device further includes at least one LED lamp 250 embedded in the safety bar itself and emitting light. For example, the LED lamp 250 is composed of a plurality of LED lamps spaced apart at regular intervals.

And, in this case, the control unit differently controls the light emitting operation of the LED lamp 250 according to the different color signal of the crosswalk traffic light.

For example, the LED lamp 250 is composed of a plurality of LED lamps emitting light in colors corresponding to different colors of the crosswalk traffic lights.

Therefore, when receiving a color signal from the crosswalk traffic light, the control unit emits an LED lamp of a color corresponding to the input color signal.

That is, the control unit emits a green LED lamp when receiving a green signal from the crosswalk traffic light, and emits a red LED lamp when receiving a red signal.

Additionally, when the color signal of the crosswalk traffic light is a green signal, the control unit flickers an LED lamp of a color corresponding to the green signal at preset time intervals when a preset time elapses from the time of inputting the green signal. do.

Therefore, through this, when the green traffic light approaches the end, that is, when the walking time ends, the pedestrian is induced to quickly cross the crosswalk.

In addition, the above-mentioned crosswalk traffic light pedestrian safety device has the following configuration.

For example, the pedestrian safety device further includes a pair of LED lamps in which the safety bar is embedded in both directions in the pedestrian direction and the vehicle direction by itself and emits light differently in a color corresponding to the color of the corresponding crosswalk traffic light .

In addition, when the color signal of the crosswalk traffic light is a green signal, the control unit controls the light emitting operation of the LED lamp in the direction in which the pedestrian is traveling to emit green light to warn the pedestrian. On the other hand, when the color signal of the crosswalk traffic light is a red signal, the control unit warns the vehicle driver by controlling the light emission operation of the LED lamp in the vehicle traveling direction to emit red light.

In this case, the control unit causes all of the pair of LED lamps, that is, flashing lights, to operate at the same time, or to operate only one of them according to manager setting information.

Additionally, the pedestrian safety device further includes a storage unit for storing preset different guidance voices corresponding to different color signals of the crosswalk traffic lights, and an audio output means for outputting the guidance voices.

And, at this time, when the control unit receives any one color signal from the crosswalk traffic light, it guides according to the color of the crosswalk traffic light by controlling the audio output operation of the audio output means differently according to the input color signal. make a voice

For example, when a green signal is input from the crosswalk traffic light, a walking guide voice is provided. At this time, the walking guide voice is stored in a flash memory or the like.

A pedestrian safety device according to another embodiment of the present invention prevents system failure by attaching a plurality of proximity sensors to a safety bar on the vehicle direction and stopping the operation of the safety bar when the vehicle approaches within a short distance or in contact with the safety bar.

To this end, the safety bar further includes at least one second proximity sensor 510 installed at a portion facing the vehicle traveling direction to detect whether or not the vehicle is approaching. At this time, the second proximity sensor 510 is composed of a plurality of proximity sensors spaced at regular intervals.

Also, when the proximity of the vehicle is detected by the second proximity sensor 510, the control unit forcibly stops the first blocking state operation of the safety bar or tilts it at a preset angle.

In addition, the pedestrian safety device is provided with a shock absorbing member 520 that protects the safety bar by elasticity. That is, the safety bar may be bent by a predetermined angle to one end of the lower portion by the shock absorbing member 520, and thus the safety bar may be protected by elastic force even when the vehicle applies an impact to the shock absorbing member 520. Of course, even if the safety bar is moved by an impact, it returns to its original position by an elastic force when the corresponding impact disappears.

Additionally, such a pedestrian safety device enables a signal synchronized with a traffic light to be turned on at a safety fence separating a road and a sidewalk.

In this case, the safety fence is for protecting a pedestrian from a vehicle by dividing a road and a sidewalk in a school zone, for example, and includes a support rod and a safety rod and a fluorescent rod provided between the supports.

The support is provided between the driveway and the sidewalk and is fixed to the ground. A plurality of these supports may be provided at regular intervals. Also, the support may include a safety fence lighting module like a bollard), and the safety fence lighting module may include at least one of a red light, a yellow light, and a green light. In addition, a stop light synchronized with the red light and indicating a stop signal by text may be further included. In addition, it is preferable to apply a paint such as bright yellow to the support to increase visibility.

The safety bar is provided to connect between the supports to restrict the movement of pedestrians to the roadway or the movement of vehicles to the sidewalk. A plurality of safety rods are provided so as to be spaced apart from each other at regular intervals in a direction crossing the longitudinal direction of the support rods between the plurality of support rods. At this time, it is effective to apply a color that is easy for drivers and pedestrians to visually recognize the safety rod. Also, it may be the same color as the support or a different color. That is, if the support bar) is bright yellow, the safety bar may also be bright yellow, or may be another different color.

For reference, each of the above-described parts is integrally and electrically connected to the modularized control unit in the form of a PLC according to an embodiment.

6 is a view for explaining the pedestrian safety device of FIG. 5 described above and the pedestrian safety device according to another embodiment.

Specifically, a and b of FIG. 6 are basically LED lamps embedded in both directions, and additionally a is a view showing the light emitting operation of the LED lamp in the second blocking state of the pedestrian safety device, and b is a view showing the light emitting operation of the LED lamp in the first blocking state. It is a diagram showing the operation of emitting an LED lamp.

As shown in a and b of FIG. 6, in the pedestrian safety device according to the embodiment, for this purpose, the safety bar is embedded in both directions in the pedestrian direction and the vehicle direction, and is colored in a color corresponding to the color of the corresponding crosswalk traffic light. It includes a pair of LED lamps that emit light differently.

Further, in the case of the second blocking state, the control unit controls the light emitting operation of the LED lamp in the direction in which the pedestrian travels to emit green light to warn the pedestrian. On the other hand, in the case of the first blocking state, the control unit warns the vehicle driver by controlling the light emitting operation of the LED lamp in the vehicle traveling direction to emit red light.

In this case, the control unit controls the light emitting operation of the LED lamp in the direction in which the pedestrian is traveling in the second blocking state to emit only green light. On the other hand, in the case of the first blocking state, the light emission operation of the LED lamps in the vehicle traveling direction and the pedestrian traveling direction is controlled so that all or only one of the LED lamps of the pair are emitted at the same time according to manager setting information. .

200: control unit 210: D / I module
220: control unit 240: integrated motor
250: power supply

Claims (3)

In the crosswalk traffic light pedestrian safety device for controlling the pedestrian progress by controlling the operation of the safety bar in accordance with the crosswalk signal light in the control unit when crossing the crosswalk,
The control unit includes a power module that integrally supplies power from the power supply unit to each part of the pedestrian safety device for the crosswalk traffic light; Serial communication module with external control unit; An A/I module that integrally inputs and processes analog detection information including fine dust detection information by sensors around traffic lights; An A/O module that integrally outputs analog information; an A/D module that integrally converts analog information input from the A/I module into digital information; A D/I module that integrally inputs and processes digital information including each signal of the crosswalk traffic lights; A D/O module that outputs digital information integrally to a corresponding external control device including a fine dust reduction device; and a CPU module that controls each module as a whole. including,
The control unit
a) When a green signal is input from the crosswalk signal light, the safety bar controls the driving operation of the safety bar in a positive (+) left and right turn from the pedestrian stop area to the vehicle stop area so that the safety bar has a first blocking state,
b) When a red signal is input from the crosswalk traffic light, the safety bar controls the driving operation of the safety bar of negative (-) left and right turns from the vehicle stop area to the pedestrian stop area so that the safety bar has a second blocking state, Control and control the progress and vehicle progress,
c) When a color signal is input from the crosswalk traffic light, the LED lamp 250 installed on the safety bar of the color corresponding to the input color signal is made to emit light,
d) When the color signal of the crosswalk traffic light is a green signal, the LED lamp of the color corresponding to the green signal blinks at a preset time interval when a preset time elapses from the time the green signal is input,
e) When any one color signal is input from the crosswalk traffic light, by controlling the audio output operation of the registered audio output means differently according to the input color signal, a guide voice is produced according to the color of the crosswalk traffic light,
f) a storage unit for storing preset different guidance voices corresponding to different color signals of the crosswalk traffic lights; Including; voice output means for outputting the guide voice as a voice;
g) When a pedestrian is detected by the first proximity sensor, a preset alarm is generated by controlling an audio output operation of the audio output means;
h) When a green signal is input from the crosswalk traffic light, the safety bar makes a positive (+) turn from the pedestrian stop area to the vehicle stop area so that the safety bar has a first blocking state, and a red signal from the crosswalk traffic light When the input is received, the safety bar controls pedestrian progress and vehicle progress by making a reverse (-) rotation from the vehicle stop area to the pedestrian stop area so as to have a second blocking state,
The safety bar includes the first proximity sensor installed at a portion facing the pedestrian's traveling direction and detecting the pedestrian, and when regulating crossing the crosswalk, the vehicle is preset by turning left and right based on the same central position. A first blocking state in a stop area and a second blocking state in a preset pedestrian stop area,
The safety bar is installed at one end of a portion facing the direction in which the vehicle travels and is wrapped by a shock absorbing member 520 for absorbing the impact of the vehicle, and further includes a motor that rotates the safety bar left and right,
Pedestrian safety device for pedestrian crossing traffic lights, characterized in that for protecting the safety bar by elastic force even when the vehicle applies an impact to the shock absorbing member 520.
The method of claim 1,
The control unit,
In the second blocking state, the light emission operation of the LED lamp in the direction in which the pedestrian is traveling is controlled to emit green light, and in the case of the first blocking state, the emission operation of the LED lamp in the direction in which the vehicle is traveling is controlled to emit red light. make it glow,
The control unit,
In the case of the second blocking state, controlling the light emission operation of the LED lamp in the direction of the pedestrian proceeding to emit only green light, and in the case of the first blocking state, the light emission operation of the LED lamp in the direction in which the vehicle and the pedestrian proceed controlling all or only one of a pair of LED lamps to emit light at the same time according to manager setting information; Crosswalk traffic light pedestrian safety device characterized by.
According to claim 1 or claim 2,
The control unit
a tuning coil for storing electromagnetic energy according to the input color signal when the color signal from the crosswalk traffic light is input;
a transformer for boosting the electromagnetic energy stored by the tuning coil; and
a power supply unit for adding and supplying the electromagnetic energy boosted by the transformer as power for driving the safety bar; Crosswalk traffic light pedestrian safety device, characterized in that it further comprises.

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