KR101313317B1 - Sign board for road safety and power on-off method thereof - Google Patents

Abstract

Disclosed is a road safety sign placed on a road and a blinking method thereof.
The road safety sign of the present invention, a solar cell module for generating power by absorbing sunlight from the solar cell, a light emitting display unit that emits light generated by the generated power, and receives a flashing signal including blinking information from a neighboring previous sign Flashing signal transmission and reception unit for transmitting a flashing signal to the next neighboring sign, a storage unit for storing the received flashing information, and determines whether the flashing signal is received from the previous sign, if the flashing signal is received according to the received flashing signal And flashes the signal to the next sign, and if the flashing signal is not received, includes a control unit for generating a new flashing signal including pre-stored flashing information to flash the light emitting display unit and transmitting the new flashing signal to the next sign. .

Description

Road safety signs and flashing methods {SIGN BOARD FOR ROAD SAFETY AND POWER ON-OFF METHOD THEREOF}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to road safety signs, and more particularly, to a road safety sign and a flashing method for supplying power using solar energy to a plurality of road safety signs arranged in a row, and stably blinking even if a failure occurs in part. .

Road safety signs are usually installed on the side of a road or on the top of a roadway to secure safe and smooth road traffic and to promote road structure preservation on roads used by vehicles. These road safety signs are divided into direction signs, milestones, landmarks, route signs, and auxiliary signs, and instruct vehicle drivers and pedestrians to guide or regulate various information.

In general, a vehicle driver needs special care in driving a curved road unlike a straight road because there is a limit in securing forward vision. In addition, during the day, driving on the basis of roads or surrounding facilities, etc., but in the case of dark nights, there is a high risk of accident because the function of inducing eyes is significantly reduced by roads or facilities. Especially in areas without street lamps, mountain roads and roads without guardrails, the risk is even greater when the driver is not aware of the road situation.

In order to solve this problem, conventionally, by installing a reflector or a flashing light along the road in the center of the road or the shoulder of the road so that the driver to recognize the road situation to guide the road safely. Reflective light reflects the light of the sun or the headlights of the vehicle and enters the driver's field of view. The flashing light blinks the light itself so that the driver can check at night. In addition, such a flashing light assists the driver to easily check and operate safely through simultaneous flashing or sequential flashing.

However, the road safety signs of the related art are mainly installed in a plurality of roads and are exposed to the external environment such as rain, snow, wind, etc., which may cause damage or failure. In particular, when a large number of road safety signs are installed in a row along the road, these signs transmit signals to neighboring signs and flash, so when some signs fail, not only the signs but also the subsequent signs are signaled. Because it does not receive the problem does not flash.

In recent years, road safety signs that independently supply power using solar cells have been provided. Even in this case, if some signs break down, neighboring signs will not receive flashing information such as sequential / simultaneous flashing, 12h / 24h flashing, flashing cycle, and flashing signal for on / off of light emitting device. There is a problem that the period is disturbed and randomly flickers to obstruct the driver's view.

Therefore, in the technical field, there is a technology development for road safety signs that enables the driver to be stably guided by stably blinking the remaining signs even if any part of a plurality of road safety signs installed in a line along the road breaks down. It is required.

The present invention has been proposed to solve the above-mentioned problems of the prior art, and provides a road safety signage and a blinking method thereof that can stably blink even when a failure occurs in a part of a plurality of road safety signs arranged in a line. Its purpose is to.

In addition, the present invention is to generate a new flashing signal by itself when a flashing signal is not received from each of the neighboring signs in a plurality of road safety signs to blink according to the flashing signal and to send the flashing signal to the next sign Another purpose is to provide a safety sign and its blinking method.

In addition, the present invention provides a road safety sign and a flashing method to provide power required to drive the sign by independently generating power from the solar power through the solar cell modules installed on each without using commercial power or battery power. There is another purpose.

Furthermore, another object of the present invention is to store a portion of the power generated by the solar cell module in the storage battery and if the size of the power generated in the solar cell module is greater than the reference value flickers to the generated power, if less than the reference value of the battery It is to provide road safety signs that blink on power.

Road safety signs according to the present invention for achieving the above object,
A light emitting display which emits light by the power supplied; A flashing signal transmitting / receiving unit for receiving a flashing signal including flashing information from a neighboring previous sign and transmitting the blinking signal to a neighboring next sign; A storage unit for storing the received blinking information; And a controller configured to determine in real time whether the blinking signal is received from the previous sign and to flash the light emitting display unit according to the received blinking signal and to transmit the blinking signal to the next sign when the blinking signal is received. Solar cell module for generating power by absorbing sunlight from the solar cell; A storage battery which stores the power generated by the solar cell module and supplies the stored power to the light emitting display; And a power detector detecting the magnitude of power generated by the solar cell module. And the controller waits for a predetermined time when the blinking signal is not received from the previous sign, and if the blinking signal is not received for the predetermined time, the controller includes a new blinking information including the stored blinking information by a preset program. After generating a signal and flashing the light emitting display unit according to the generated new blinking signal, the generated new blinking signal is transmitted to the next sign.

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In addition, the flashing method of the road safety sign for achieving the above object,
A plurality of road safety signs, each of which includes a light emitting display unit and is arranged in a line, store the power generated by the solar cell module in the storage battery and supply the power stored in the storage battery to the light emitting display unit to blink. Storing blinking information when the signal is received, blinking the light emitting display unit according to the received blinking signal, and transmitting the received blinking signal to a neighboring next sign; And if a flashing signal is not received from the previous sign, waits for a predetermined time, and if the flashing signal is not received for the predetermined time, generates a new flashing signal including the stored flashing information by a preset program therein and generates the new flashing signal. Flashing the light emitting display according to the new flashing signal and transmitting the generated new flashing signal to the next sign; Each of the signs may include a relatively smaller size of power supplied from the battery to the light emitting display than the case where the size of the power detected by the power detector is smaller than a predetermined reference value or greater than the reference value. Make the flashing cycle relatively long.

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According to the road safety sign and the flashing method of the present invention by the above configuration has the following effects.

First, according to the present invention can supply the power required for driving through the solar cell module to the road safety sign can be operated stably at a low cost.

In addition, according to the present invention it is possible to provide a safe guidance to the driver by enabling a stable blink even if some of the failure occurs in a plurality of road safety signs arranged in a line.

In addition, according to the present invention, when the size of the power generated by the solar cell module falls below the reference value, the power is stored in the storage battery to supply the power stored in the road safety sign even if the amount of power generated in the solar cell module is low depending on time and weather. Can be supplied by

1 is an exemplary view of a plurality of road safety signs arranged in a line on the road in one embodiment of the present invention.
2 is a block diagram of a road safety sign according to an embodiment of the present invention.
3 is a view for explaining the principle of operation of road safety signs according to an embodiment of the present invention.
4 is a flow chart showing a blinking method of a road safety sign according to an embodiment of the present invention.
5 is a flowchart illustrating a blinking method of a road safety sign according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is an exemplary view of a plurality of road safety signs arranged in a line on the road in one embodiment of the present invention.

As shown in FIG. 1, road safety signs 100 (hereinafter, referred to as 'signals' for convenience) according to the present invention are arranged in a plurality of lines in a line along the road 20 and blinking according to a driving direction of the vehicle 10. By doing so, in particular to guide the situation of the road 20 for the safe operation of the vehicle 10 at night or rain. In the present invention, the blinking of the sign 100 means that the power is turned on / off by the light emitting device provided therein, that is, the light emitting device is turned on and off. Such a light emitting device is a light emitting device, for example, can be implemented in various ways, such as a light emitting diode (LED), a surface light source, a backlight light source.

In addition, simultaneous blinking in the plurality of signs 100 means that all signs 100 are on / off at the same time, and sequential flashing means that the plurality of signs 100 are sequentially on / off. For example, in a plurality of signs 100, after the first sign 101 is flashed on / off, the second sign 102 is flashed on / off, and then continues to the 3, 4, 5, ... The signs 103-105 are turned on / off in sequence. In this case, in some cases, the plurality of signs 100 may be divided by sections, and simultaneous flashing or sequential flashing may be enabled in each section. Such blinking time, blinking cycle of the sign 100 can be arbitrarily set and changed by the user.

The sign 100 transmits and receives a flashing signal between signs 100 adjacent to each other. For example, the first sign 101 transmits a flashing signal to the second sign 102. As such, the second sign 102 receives the blinking signal from the neighboring first sign 101 and blinks according to the received blinking signal, and blinks the neighboring next sign the third sign 103. Send it. Similarly, the controller blinks in accordance with the blink signal received by the third sign 103 and transmits the blink signal to the fourth sign 104. Here, the first and last signs are different. That is, the first sign does not receive a flashing signal and generates a flashing signal including the flashing information and transmits it to the next sign. The last sign receives a flashing signal from the previous sign but does not transmit a flashing signal since there is no next sign. In an embodiment of the present invention, the new blinking signal is preferably generated by a preset program.

2 is a block diagram of a road safety sign according to an embodiment of the present invention.

As shown in FIG. 2, the road safety sign 100 according to the embodiment of the present invention includes a solar cell module 110, a storage battery 120, a light emitting display unit 130, a flashing signal transmitting and receiving unit 140, and a storage unit ( 150 and the controller 160. In addition, in another embodiment of the present invention, the road safety sign 100 may further include a power detector 170.

The solar cell module 110 generates power required for the operation of the sign 100 using a solar cell that absorbs sunlight. The power generated by the solar cell module 110 is converted into AC power required for the road safety sign 100 by a conversion circuit therein as a DC power source. Here, the solar cell module 110 is an example of a device for supplying power, and in another embodiment of the present invention, commercial power or a separate known power generator may be used.

The storage battery 120 stores power generated by the solar cell module 110 as an example. In another embodiment, commercial power, etc. may be stored separately. In the present embodiment, the power generated by the solar cell module 110 is stored and the stored power is supplied to the light emitting display unit 130. This is to light up the light emitting display 130 and to store power generated by the solar cell module 110.

The light emitting display unit 130 is blinked according to a flashing signal input by receiving power from the battery 120. The light emitting display unit 130 may be preferably composed of one or more light emitting devices. The light emitting display unit 130 performs an operation such as blinking according to a control signal of the controller 160 to be described later.

The flashing signal transmitting and receiving unit 140 is a receiving unit (not shown) for receiving a flashing signal transmitted from the previous sign 100 'neighboring with itself, and a transmitting unit for transmitting a flashing signal to the next neighboring sign (100 ") ( (Not shown) The blinking signal transmitted and received includes the blinking information of the light emitting display unit 130.

 The storage unit 150 stores the blinking information included in the blinking signal received by the blinking signal transmitting and receiving unit 140. Such blinking information includes 12h / 24h blinking, sequential / simultaneous blinking, blinking cycle, and the like.

The control unit 160 determines in real time whether a flashing signal is received from a neighboring previous sign 100 'through the receiving unit. When the flashing signal is received, the control unit 160 flashes the light emitting display unit 130 according to the received flashing signal, The control unit transmits the flashing signal to the neighboring next sign 100 "through the receiver. In addition, the controller 160 transmits the flashing signal to the storage unit 150 when the flashing signal is not received from the neighboring previous sign 100 'through the receiving unit. It generates a new blinking signal including the pre-stored blinking information, and flashes the light emitting display in accordance with the generated blinking signal, and transmits the new blinking signal to the next sign 100 "through the transmitter.

Meanwhile, the power detector 170 detects the size of the power generated by the solar cell module 110. In detail, the power detector 170 measures the amount of power generated by measuring the magnitude of the voltage or current generated by the solar cell module 110.

In this case, when the magnitude of the power detected by the power detector 170 is greater than or equal to a preset reference value, the controller 160 controls the storage battery 120 to supply relatively large power to the light emitting display 130. In the storage battery 120, relatively little power is supplied to the light emitting display 130. In another example, the controller 160 controls the blinking of the light emitting display 130 to be relatively short when the magnitude of the power detected by the power detector 170 is greater than or equal to a preset reference value. The blinking is controlled so that the blinking period of the light emitting display 130 is long. This is because the rain, snowy weather, the sun is covered by the cloud or at night there is no absorption of sunlight because there is little solar power output in the solar cell module 110, in this case the power supplied to the light emitting display 120 Since the size falls below a predetermined value (reference value), it is to properly adjust the power required for the flashing of the light emitting display unit 130 in the storage battery 120 to reduce the power consumption.

3 is a view for explaining the principle of operation of road safety signs according to the present invention.

In FIG. 3, for convenience of description, only five signs 100a to 100e are shown, and it is assumed that a failure occurs in the third sign 100c in the middle while all operate normally.

The first sign 100a, which is the first, generates a blinking signal including blinking information by a preset program. The blink signal may be initially set by the user in advance. The first sign 100a blinks by this blink signal. When blinking, it blinks according to the blinking information such as 12h / 24h blinking, blinking cycle, simultaneous blinking, sequential blinking. Subsequently, the first sign 100a transmits the flashing signal to the second sign 100b which is the next next sign.

The second sign 100b receives the flashing signal transmitted from the first sign 100a, which is the previous sign, and blinks according to the received flashing signal. The blinking at this time also blinks according to the blinking information included in the blinking signal. The second sign 100b also transmits a flashing signal to the next sign 100c.

However, the third sign 100c does not operate normally because a failure occurs. Therefore, neither the flashing signal transmitted from the second sign 100b, which is the previous sign, is received, nor the flashing signal is transmitted to the fourth sign 100d, the next sign (see A in the drawing).

Then, if the blinking signal is not received for a predetermined time, the fourth sign 100d automatically drives a preset program to generate a new blinking signal, and blinks according to the generated new blinking signal. In this case, the generated blinking signal includes pre-stored blinking information. The fourth sign 100d transmits the newly generated blinking signal to the next sign, the fifth sign 100e.

The last fifth sign 100e flashes according to the flashing signal received from the fourth sign 100d. At this time, since the fifth sign 100e is the last, the blinking signal is no longer transmitted. If there are more signs next, the flashing signal continues to be transmitted in the same process as above.

As such, when the plurality of signs 100 are all in a normal state, except for the first and the last, all of them receive a flashing signal from the previous sign and flash according to the flashing signal and transmit the flashing signal to the next sign. In addition, when a failure occurs in some signs 100 to generate a new flashing signal from the next sign of the sign that the failure is generated to flash according to the generated flashing signal and continue to transmit the flashing signal to the next sign. Through this process, even if a failure occurs in the sign 100, it is possible to continue flashing thereafter.

4 is a flowchart illustrating a blinking method of a plurality of road safety signs according to an embodiment of the present invention.

Referring to FIG. 4, power is applied to a plurality of road safety signs 100 including a light emitting display unit 130 and arranged in a line (S101). Each sign 100 determines in real time whether a flashing signal including blinking information is received from a neighboring previous sign 100 '(S103).

In step S103, when the blinking signal is received from the previous sign 100 ′, the received blinking information is stored (S105), and the light emitting display unit 130 blinks according to the blinking signal (S107). Subsequently, the blinking signal is transmitted to the neighboring sign 100 "(S109).

On the contrary, in step S103, when no blinking signal is received from the previous sign 100 ', the corresponding sign 100 generates a new blinking signal including pre-stored blinking information (S111) and emits light according to the generated blinking signal. The display unit 130 blinks (S113). In operation S115, the generated new blinking signal is transmitted to the neighboring next sign 100 ″.

5 is a flowchart illustrating a blinking method of a road safety sign according to another embodiment of the present invention.

Referring to FIG. 5, the size of power generated by the solar cell module 110 is detected during the blinking process of the road safety sign 100 described in FIG. 4 (S201). In this case, when the magnitude of the detected power is compared with a preset reference value (S203), when the size is larger than the reference value, the battery 120 supplies a relatively large power to the light emitting display 130 to blink the light emitting display 130 (S205). On the contrary, when the reference value is less than the reference value, the battery 170 supplies relatively little power to the light emitting display 130 to make the light emitting display 130 blink (S207). Flashing at this time is performed by the flashing signal described above. Although not shown in the drawing, in another embodiment of the present invention, in the case of step S205, the flashing period of the light emitting display 130 may be adjusted to be relatively shorter than that in step S207. This may be implemented by the controller 160 by supplying and cutting off the power supplied from the battery 120 or by controlling the on / off period of the light emitting display 130.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments. Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope of the appended claims, The genius will be so self-evident. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

The road on which the vehicle travels is formed not only in a straight line but in some cases in a curved form. Street lamps are installed on most large roads, but there are no street lamps on small roads or secluded roads. This requires the installation of road safety signs along the road.

In view of this aspect, the present invention enables to stably blink again even if a failure occurs in some of a plurality of road safety signs installed in a line along the road, thereby enabling the road driver to accurately and safely guide the road.

Therefore, the present invention will be very usefully applied not only to daily life but also to the logistics transport field that operates at night.

100, 100 ', 100 ": Road safety sign 110: Solar cell module
120: storage battery 130: light emitting display
140: flashing signal transmission and reception unit 150: storage unit
160: control unit 170: power detection unit

Claims (9)

A light emitting display which emits light by the power supplied;
A flashing signal transmitting / receiving unit for receiving a flashing signal including flashing information from a neighboring previous sign and transmitting the blinking signal to a neighboring next sign;
A storage unit for storing the received blinking information; And
A control unit which determines in real time whether the blinking signal is received from the previous sign and flashes the light emitting display unit according to the received blinking signal and transmits the blinking signal to the next sign when the blinking signal is received;
Solar cell module for generating power by absorbing sunlight from the solar cell;
A storage battery which stores the power generated by the solar cell module and supplies the stored power to the light emitting display; And
A power detector detecting a magnitude of power generated by the solar cell module; Lt; / RTI >
The control unit waits for a predetermined time period when the blinking signal is not received from the previous sign, and generates a new blinking signal including the stored blinking information by a preset program when the blinking signal is not received during the predetermined time. Flashing the light emitting display unit according to the generated new blinking signal and transmitting the generated new blinking signal to the next sign,
The control unit may reduce the amount of power supplied from the storage battery to the light emitting display unit when the size of the power detected by the power detection unit is smaller than a predetermined reference value or to relatively reduce the flashing period of the light emitting display unit. Road safety signs lengthened. delete delete delete delete In the plurality of road safety signs including each of the light emitting display unit and arranged in a line to store the power generated by the solar cell module in the storage battery and to supply the power stored in the battery to the light emitting display, and to blink,
Storing blinking information when a blinking signal is received in a previous sign, flashing the light emitting display unit according to the received blinking signal, and transmitting the received blinking signal to a neighboring next sign; And
If the blinking signal is not received from the previous sign, the controller waits for a predetermined time period and if the blinking signal is not received for the predetermined time period, generates a new blinking signal including the stored blinking information by a preset program therein and generates the generated blinking signal. Flashing the light emitting display unit according to a new blinking signal and transmitting the generated new blinking signal to the next sign; Lt; / RTI >
Each of the signs indicates that when the magnitude of the power detected by the power detector is smaller than a predetermined reference value, the size of the power supplied from the battery to the light emitting display is relatively smaller than that when the power is detected or larger than the reference value. Blinking way of road safety signs. delete delete delete

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