KR101979389B1 - On boarding safety system for children's school bus and the control method thereof - Google Patents

Abstract

In the embodiment of the present invention, the guide illumination unit is installed on one side of the school bus and includes at least one guide lamp for illuminating the entrance prohibition signal on the ground when the door is opened, a sensor unit for sensing whether the door is opened, And a control unit for turning on the guide lamp when the open detection signal is received.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety system for a child's school bus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety system for entering and exiting a child's school bus and a control method thereof.

In recent years, many kindergarten buses have been operating in kindergartens, schools, etc., connecting home, kindergarten, and school. These buses are being used by kindergartens and academies for recruiting many aboriginal students and for transferring children to a wider area in their kindergartens and academies.

These buses are normally operated for children's students, and are operated with the students on board. However, in recent years, child safety accidents due to these school buses have frequently occurred, leading to social problems.

Most accidents involving child death or injury are caused by carelessness by the driver. Therefore, in order to prevent accidents, the government enacts laws and regulations on safe driving of school buses to prevent child safety accidents. However, safety accidents caused by school buses can not be prevented by these legal standards alone.

In other words, in reality, if a driver who drives a school bus is not careful, a child safety accident will continue to occur. Therefore, a device for reminding driver's attention is needed.

Korean Patent Laid-Open Publication No. 10-2014-0133312 (published on November 19, 2014)

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a pedestrian crossing (or an entry prohibition line) on a ground as lighting when children get on and off, And a method for controlling the same.

The present invention includes the following embodiments in order to achieve the above object.

In the embodiment of the present invention, at least one guide lamp provided at one side of a school bus includes a guiding illumination unit for illuminating an entry prohibition signal to the ground when the door is opened, a sensor unit for sensing whether the door is opened, And a controller for turning on the guide lamp when a sensing signal is received, wherein the sensor unit includes a door sensor for sensing whether the door is opened, a light amount sensor for sensing a light amount, a distance sensor for sensing a distance between the door and the ground, And at least one of a pedestrian, a car, an electric motor, and a peripheral sensor for sensing at least one of a pedestrian, an automobile, an electric motor, and a bicycle within a set distance around the door and the school bus.

Therefore, according to the present invention, since children form a pedestrian crossing (or a prohibiting line) when they get on and off the school bus, it is possible to alert the children whether they are getting in or out of cars, It is possible to prevent an accident from occurring in advance.

1 is a view showing an embodiment of a safety system for entering and exiting a child's school bus of the present invention and a control method thereof.
2 is a block diagram of a boarding and safety system for children's school buses of the present invention.
3 is a block diagram showing a guide illumination unit in the present invention.
4 is a view showing a guide lamp in the present invention.
FIG. 5 is a flowchart showing a control method of a boarding and going-off safety system for a children's school bus in the present invention.

Hereinafter, embodiments and examples of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention.

However, the present invention may be embodied in many different forms and is not limited to the embodiments and examples described herein, and the terms and words used in the specification and claims are not to be construed in a conventional or dictionary sense, It should be construed as meaning and concept consistent with the technical idea of.

Throughout the specification, when an element is referred to as " comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of a safety system for entering and exiting a child school bus according to the present invention and its control method will be described in detail with reference to the accompanying drawings.

1 is a view showing an embodiment of a safety system for entering and exiting a child's school bus of the present invention and a control method thereof.

Referring to FIG. 1, the present invention includes a guide lamp 251 that automatically illuminates a ground when a door 110 is opened in a school bus 100 for a child. The guide lamp 251 outputs light in at least one color so as to form a crosswalk B or B '(or a prohibited entry line) on the ground, (B, B ') (or prohibited entry line) on the ground with a small amount of water.

Here, the present invention can adjust the light intensity of the lamp according to the amount of surrounding light. For example, at the noon time, light is illuminated on the ground with the light amount which is the highest in the amount of ambient light as compared with morning or evening, so that the crosswalk (B, B ') (or the prohibition line) can be formed.

Or the light amount of the guide lamp 251 may be adjusted to match the amount of ambient light when the target position is a shady place or cloudy weather.

More preferably, the crosswalk (B, B ') (or prohibited entry line) is temporarily installed on the ground as light colored light, but the light is collected (ZOOM IN) and diffused (ZOOM OUT) It is preferable to be able to implement the crosswalk B and B '(or entry prohibition line).

Therefore, according to the present invention, when children ride on and off a child's school bus 100, crosswalks B and B '(or entry prohibiting lines) are formed on both sides of the door 110, It was proposed to prevent motorists, bicycles and pedestrians from getting in and out of the area by informing them to get on and off.

Hereinafter, a safety system for entering and exiting a child's school bus according to the present invention will be described in detail.

2 is a block diagram of a boarding and safety system for children's school buses of the present invention.

2, the present invention includes a door 110, a sensor 220 for sensing the amount of ambient light, a signal lamp 230 for outputting illumination prohibiting entry into the front and / or rear of the school bus 100, An alarm unit 240 for outputting a voice alarm, a guide illumination unit 250 for outputting a crosswalk B and B '(or an entry prohibition line) on the ground, and a guide illumination unit 250 for manually operating the guide illumination unit 250 A manual operation unit 260 having a plurality of switches, an operation display unit 270 for indicating whether the driver is normally operated or not, and a control unit 210 for controlling each configuration.

The sensor unit 220 includes a door sensor 221 for detecting whether the door 110 is opened or not, a light amount sensor 222 for sensing the amount of ambient light, a moving object (pedestrian, car, And a distance detection sensor 224 for sensing a distance between the door and the ground. The ambient sensing sensor 223 senses a child around the door.

The door sensor 221 detects whether the doors 110 of the school bus 100 are opened or closed and outputs them to the control unit 210.

The light intensity sensor 222 senses the amount of ambient light, particularly, the amount of light within a predetermined range centered on the front where the door 110 is located, and outputs the sensed light intensity to the control unit 210.

The peripheral sensing sensor 223 senses a moving object including at least one of a car, a bicycle, an electric motor, and a pedestrian and a child around the door 110 within a set range centered on the school bus 100, Output. Here, the peripheral sensor 223 may be any one selected from a laser, an infrared ray, and a thermal image camera. The peripheral sensing sensor 223 will not be described because it is a known technique.

The distance sensor 224 senses the distance between the door 110 and the ground and outputs the sensed distance to the controller 210. The distance between the door 110 and the ground is used as data for controlling the zooming in or zooming out of the guide lamp 251 and adjusting the angle of the guide lamp 251.

The signal lamp 230 is turned on simultaneously with the opening of the door 110 and / or the operation of the guide illumination unit 250 so that the entrance of a car, a pedestrian, an electric motor, or a bicycle (hereinafter, collectively referred to as a moving object) from the front and / And outputs a prohibited lighting signal. Preferably, the traffic signal lamp 230 can display prohibition of entry (for example, red). Here, the traffic light 230 is installed in at least one of the front and rear of the school bus 100.

The manual operation unit 260 includes a lighting switch 262 for manually turning on the signal lamp 230 and the guide lamp 251 and a lamp control switch 261 for adjusting the zooming and directing angle of the guide lamp 251, And an alarm output switch 263 for outputting an alarm sound.

The lighting switch 262 is a switch for manually lighting the guide lamp 251 by the driver. That is, the lighting switch 262 outputs a lighting instruction of the guide lamp 251 to the control unit 210. [

Preferably, the turn-on switch 262 may further include a switch for outputting a turn-on command of the traffic light 230.

The lamp control switch 261 is a switch for manually operating the zoom (ZOOM) and directivity angle of the guide lamp 251 by the driver. That is, the lamp control switch 261 outputs a zoom in (ZOOM IN) or zoom out (ZOOM OUT) command and / or an orientation angle control command to the controller 210.

The alarm output switch 263 outputs a voice alarm command to the control unit 210 when the driver or the lead person is manually operated.

The operation display unit 270 indicates whether each configuration is operated or not. For example, the operation display unit 270 displays, as a plurality of LEDs, whether the door 110 is opened, whether the signal lamp 230 is lit, whether the guide lamp 251 is lit, and whether a voice alarm is output. Alternatively, the operation display unit 270 may display the operation of each of the components by a combination of letters, numbers, symbols, or the like as a liquid crystal display.

The guiding illumination unit 250 adjusts the angle of directivity according to the distance between the door 110 and the ground and outputs at least one colored light so that the crosswalks B and B ' . The guide illumination unit 250 can implement the crosswalk B and B '(or the entry prohibition line) by irradiating light from at least one guide lamp 251 to the ground from both sides of the door 110. A more detailed configuration will be described with reference to Figs. 3 and 4. Fig.

FIG. 3 is a block diagram showing a guide illumination unit in the present invention, and FIG. 4 is a diagram showing an example of a guide lamp.

3 and 4, the guide illumination unit 250 includes a plurality of guide lamps 251 fixed on both sides of the door 110 so as to be rotatable on both sides thereof, a light amount adjusting unit 251 for adjusting the output of the guide lamp 251, A zooming means 253 for adjusting the zoom of the guide lamp 251 and an angle adjusting means 254 for adjusting the directing angle of the guide lamp 251.

The light amount adjusting means 252 controls the level of the power supplied to the guide lamp 251 under the control of the controller 210 to adjust the amount of light emitted from the guide lamp 251.

The zoom adjusting unit 253 adjusts the focus of the guide lamp 251 under the control of the controller 210 to implement a zoom in or zoom out function.

The angle adjusting means 254 controls the direction of the guide lamp 251 by rotating the guide lamp 251 up and down under the control of the control unit 210. Alternatively, the angle adjusting means 254 may rotate the lens assembly 251d of the guide lamp 251, which will be described later, up and down.

The guide lamp 251 includes a housing 251a divided into a plurality of sections and a plurality of light emitting devices 251b 251b 251b 251b 251b 251b 251b 251b 251b 251b 251b 251b 251b 251b, , Color filters 251c, 251c ', 251c' ', and 251c' '' fixed to the front surfaces of the light emitting devices (LEDs) 251b, 251b ', 251b', and 251b '' ' And a lens assembly 251d for condensing and outputting the light transmitted from the light sources 251c, 251c ', 251c' ', and 251c' ''.

The housing 251a has a plurality of wall surfaces that are erected so as to be divided into a plurality of inner spaces, and a space in which the light emitting devices (LEDs) 251b, 251b ', 251b' ', and 251b' Respectively. Here, the front surface of the housing 251a is sealed as a plurality of color filters 251c, 251c ', 251c' ', and 251c' '' and a lens assembly 251d.

251b ', 251b' ', and 251b' '' are a plurality of, for example, first to fourth light emitting devices (LEDs) 251b, 251b ', 251b' The first light emitting device 251b and the third light emitting device 251b '' emit light in a first color, and the second light emitting device 251b ' (LED) 251b 'and the fourth light emitting device (LED) 251b' '' emit light in a second color.

251b ', 251b', 251b '' ') of the light emitting devices (LEDs) 251b, 251b', 251b ' (LEDs) 251b, 251b ', 251b' ', and 251b (for example, white light) that emit the same color (e.g., white light) as the color filters 251c, 251c', 251c ' '' ').

The color filters 251c, 251c ', 251c' ', and 251c' '' are a plurality of color filters, for example, a first color filter 251c and a second color filter 251c on the front surface of the first light emitting device 251b. , A third color filter 251c '' on the front surface of the third light emitting device 251b '', and a second color filter 251c '' on the front surface of the fourth light emitting device 251b ' 4 color filter 251c '' 'is installed. Here, the first to fourth color filters 251c, 251c ', 251c' ', and 251c' '' may be alternately disposed, for example, in two colors. The color, number, and arrangement method of the color filters 251c, 251c ', 251c' ', and 251c' '' may be implemented by a business operator or a designer.

Alternatively, as another embodiment, the color filters 251c, 251c ', 251c' ', and 251c' '' may be a light-transmissive print film on which the crosswalk B, B ' And may be adhered to one surface of the assembly 251d.

The lens assembly 251d is an assembly in which a plurality of lenses are sequentially installed on the front surface of the housing 251a and is moved in the forward and backward directions to be transmitted through the color filters 251c, 251c ', 251c' ', and 251c' Diffusing or condensing light to generate an entry prohibition signal such as a crosswalk (B, B ') or an entry prohibition line on the ground. Here, the lens assembly 251d itself can be rotated up and down to adjust the directing angle.

That is, the lens assembly 251d may be rotated up and down by driving the angle adjusting means 254 to adjust the directing angle of the light transmitted through the color filters 251c, 251c ', 251c' ', and 251c' Do.

Or the guide lamp 251 may be rotated up and down by the angle adjusting means 254 so that the directing angle of the light is adjusted. The mechanical structure for zooming in or out of the lens structure 251d and the housing 251a with the rotation structure is generally known in the art, and the description thereof will be omitted.

The control unit 210 controls the signal lamp 230 to be turned on and drives the guide illumination unit 250 when the door sensor 221 detects that the door 110 is opened. Here, the signal lamp 230 is implemented in the same color and manner as the traffic signal lamp 230, and is interlocked with the peripheral sensor 223 to blink the signal. For example, the signal lamp 230 lights red, blue, and yellow light, and the controller 210 lights a yellow light when the door 110 is opened. When a human body is detected by the door 110, And when the door 110 is closed without detecting a human body in the vicinity of the door 110, red is converted into blue and controlled to be turned on.

That is, the control unit 210 controls the signal lamp 230 using the detection signals of the door sensor 221 and the peripheral sensor 223.

The control unit 210 receives the distance detection signal from the door sensor 110 to the ground from the distance sensor 224 and controls the angle adjusting unit 254 of the guide illumination unit 250 to detect the crosswalk B , B ') (or entry prohibited line) is determined.

For example, when the door 110 has a distance to the ground, the controller 210 moves the guide lamp 251 upward. When the door 110 is away from the ground, the controller 210 moves the guide lamp 251 downward To be turned on.

The control unit 210 receives the detection signal from the light amount sensor 222 and controls the zoom control unit 253 to zoom out to zoom out the light if the amount of light is small. Zoom in is performed to concentrate the light output from the guide lamp 251 in a predetermined region and control the light amount adjusting means 252 to control the light intensity of the guide lamp 251 upward.

When a pedestrian, a car, a bicycle, an electric motor, or the like is detected within the set area of the school bus 100 from the peripheral sensor 223, the control unit 210 controls the alarm unit 240 to alert the children that they are getting off And controls to output a voice signal.

Here, the control unit 210 may drive the alarm unit 240 every time the door 110 is opened to output a predetermined voice signal to warn the surroundings.

The control unit 210 controls whether the opening of the door 110, the signal lamp 230, the human body, the alarm unit 240, and the guide lamp 251 are turned on Can be controlled.

Hereinafter, a method for controlling a safety system for a child abutment bus according to the present invention will be described with reference to the accompanying drawings.

FIG. 5 is a flowchart showing a control method of a boarding and going-off safety system for a children's school bus in the present invention.

Referring to FIG. 5, the method for controlling the safety system for a child abutment bus according to the present invention includes steps S110 to S110, step S120 to determine whether the door 110 is opened, A step S140 of sensing the amount of light, a distance and a moving object in step S140, a step S150 of turning on the guide lamp 251, and a step of determining whether a human body is detected within a predetermined distance from the door 110 (S160), and if the human body is not detected, turning off the guide lamp 251 (S170).

In step S110, the controller 210 waits until the door 110 is opened. At this time, the school bus 100 is being moved to a place where a large number of children are boarding or moving to a designated place for boarding the children.

In step S120, the control unit 210 determines whether the door 110 is open or not from the door sensor 221.

In step S130, if the door 110 is opened in step S130, the controller 210 turns on a signal lamp 230 installed in front of and / or behind the bus 100. [ Here, the traffic light 230 selectively emits the same color as a traffic light. For example, the controller 210 changes the indicator from blue to yellow when the door 110 is opened, and controls the indicator 110 to turn from yellow to red when the human body is detected within a predetermined distance from the front of the door 110.

In step S140, the control unit 210 receives the detection signals of the light amount sensor 222 and the distance detection sensor 224. Preferably, the control unit 210 detects a moving object (for example, at least one of a pedestrian, a car, a bicycle, and an electric motor) moving within a predetermined distance from the peripheral sensing sensor 223 around the school bus 100 And if it is detected, control the alarm unit 240 to output an alarm sound.

In step S150, the control unit 210 turns on the guide lamp 251. [ The controller 210 controls the intensity of the light output from the guide lamp 251 and controls the zoom controller 253 according to the light intensity detection signal. The light amount adjusting means 252 adjusts the light output of the guide lamp 251 by adjusting the level of the power supplied to the guide lamp 251. The zoom adjusting means 253 adjusts the zoom in or zoom out by adjusting the interval of the lenses provided in the lens assembly 251d.

The angle adjusting means 254 adjusts the angle of the lens assembly 251d or the guide lamp 251 according to the distance between the door 110 and the ground according to the detection signal of the distance detecting sensor 224, To adjust the directivity angle.

Therefore, the guide lamp 251 outputs light toward the ground from both sides of the door 110, and the light illuminated on the ground passes through the color filters 251c, 251c ', 251c' ', and 251c' Two colors are alternately displayed to illuminate the shape of the crosswalk (B, B ') (or prohibited entry line). Therefore, children will board or get off between the crosswalk (B, B ') (or no entry barrier).

At this time, the control unit 210 controls whether or not the door 110 is opened, whether the signal lamp 230 is turned on, and whether the alarm unit 240 is operated through the operation display unit 270. Accordingly, the driver can recognize the normal operation state and the current state of each device through the operation display unit 270. [

In step S160, the controller 210 determines whether a human body is sensed on the front surface of the door 110. When the children ride or get off the bus 100, the human body is not detected from the front of the door 110. Accordingly, the controller 210 determines whether the guide lamp 251 is turned off by detecting the human body of the peripheral sensor 223.

In step S170, the controller 210 turns off the guide lamp 251 if the human body detection signal is not received in step S160. That is, the present invention is set when the human body is not detected within a predetermined distance from the door 110 as the off-time of the guide lamp 251. In addition, the control unit 210 may change the signal of the signal lamp 230 from red to blue. Here, the signal lamp 230 can convert the signal even when the door 110 is closed.

As described above, according to the present invention, since the pedestrian crossings (B, B ') (or prohibited entry lines) are temporarily installed as lights at the riding or getting off positions of children so that they can be confirmed by pedestrians or vehicles moving in the vicinity, Can be prevented in advance.

Particularly, according to the present invention, the entrance prohibition signal such as the pedestrian walkways B and B 'can be clearly implemented on the ground as the intensity of light and the light output are zoomed in and out according to the ambient light amount and the distance between the door 110 and the ground And safety can be further improved by detecting moving objects and alerting them.

It will be apparent to those skilled in the art that various modifications and equivalent arrangements may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

It is therefore to be understood that the invention is not limited to the form set forth in the foregoing description. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

100: School bus 110: Door
210: control unit 220:
221: Door sensor 222: Light amount sensor
223: Ambient detection sensor 224: Distance detection sensor
230: Traffic light 240: Alarm unit
250: guide illumination part 251: guide lamp
251a: Housing 251b: Light emitting element
251c: Color filter 251d: Lens assembly
260: manual operation unit 252: light amount adjusting means
253: zoom adjusting means 254: angle adjusting means
261: lamp control switch 262: lighting switch
263: Alarm output switch 270: Operation indicator

Claims (8)

A guide illumination unit 250 provided with at least one guide lamp 251 installed at one side of the school bus and illuminating an entrance prohibition signal to the ground when the door 110 is opened;
A sensor unit 220 for detecting whether the door 110 is open or closed; And
A control unit 210 for turning on the guide lamp 251 when the detection signal for opening the door 110 of the sensor unit 220 is received; Lt; / RTI >
The sensor unit 220
A door sensor 221 for detecting whether the door 110 is opened;
A light amount detecting sensor 222 for detecting a light amount;
A distance sensing sensor 224 sensing the distance between the door 110 and the ground; And
A peripheral sensing sensor 223 for sensing at least one of a pedestrian, a car, an electric motor, and a bicycle within a set distance around the door 110 and the school bus; A child restraint system for children's school buses.
The safety system according to claim 1, further comprising: a signal lamp (230) for illuminating an entry prohibition light on at least one of the front and rear of the school bus under the control of the control unit (210).
The illumination system according to claim 1, wherein the guide illumination unit (250)
A light amount control means 252 for controlling the intensity of light output from the guide lamp 251 by adjusting the level of the power supplied to the guide lamp 251 under the control of the control unit 210;
Angle adjusting means for adjusting the directing angle of the guide lamp 251 under the control of the control unit 210; And
And zoom adjusting means (253) for controlling zooming or zooming out of the guide lamp (251) under the control of the control unit (210).
delete 2. The apparatus according to claim 1, wherein the guide lamp (251)
At least one light emitting element (251b, 251b ', 251b'',251b''');
At least one color filter 251c, 251c ', 251c', and 251c '''installed on the front surface of the light emitting devices 251b, 251b', 251b '', and 251b '''; And
A lens assembly 251d having at least one lens fixed to move and rotate so as to zoom in or out the light transmitted through the color filters 251c, 251c ', 251c'', and 251c''' Including children's buses for school bus safety systems.
a) determining whether the control unit 210 opens the door 110 of the school bus;
b) illuminating a signal lamp (230) provided on at least one of the front and rear of the bus when the door (110) is opened;
c) receiving the surrounding light intensity detection signal when the door 110 is opened;
d) adjusting the light intensity of the guide lamp 251 according to the light amount detection signal and illuminating the light to illuminate the entry prohibition signal on the ground; And
e) turning off the guide lamp 251 if no human body is detected within a predetermined distance from the door 110,
c) The step
Further comprising receiving a distance sensing signal between the door (110) and the ground,
d) The step
And adjusting a steering angle of the guide lamp (251) according to a distance detection signal between the door (110) and the ground.
delete 7. The method of claim 6, wherein step c) further comprises sensing a moving object around the door (110) and the school bus,
and d) the step of outputting an alarm sound when a detection signal of a moving object is received.

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