KR20120019758A - Sequential flicking type flasher and road guiding system using it - Google Patents

Abstract

PURPOSE: A sequential flicking type flasher and a road guiding system using the same are provided to induce a driver to safely drive the vehicle by sequentially turning on and off flashers according to each section. CONSTITUTION: A light concentrating device(111) generates electric energy by using sunlight. A power source unit(112) supplies power to a rear terminal by using the electric energy from the light concentrating device. A charging unit(113) charges the power source unit. A light emitting device(114) emits light by a light emitting control signal. A storage unit(115) stores data about a flashing interval, a flashing order, and a flashing period. A wireless communication unit(116) transmits and receives the flashing order between the plurality of flashers by a local area wireless communication. A control unit(117) controls the flashing time of the flasher by comparing a preset order with the order received from the flasher through the wireless communication unit.

Description

Sequential flashing system flashing light and road guidance system using the same {SEQUENTIAL FLICKING TYPE FLASHER AND ROAD GUIDING SYSTEM USING IT}

The present invention relates to a flashing light of a sequential flashing method, in particular, a flashing light of a sequential flashing method for guiding the road by sequentially flashing a plurality of flashing lights arranged in a row along the road in accordance with a predetermined time, and a road guide using the same It is about the system.

In general, the driver of the vehicle requires special attention in driving because the road of a curved road has a limit in securing forward vision unlike a straight road. 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, while the flashing light emits light by itself so that the driver can check it at night. Yes.

However, in the conventional road guidance system, a series of flashing lights are installed continuously in a row along the road. In this case, the flashing cycles of the respective flashing lights are not constant. Rather, they often interfere with the driver's eye induction, thus preventing the safe driving. It is a situation.

In order to improve this, conventionally, the flashing cycle of the flashing light is fixed and flashes according to the fixed flashing cycle. However, a change occurs in the flashing cycle due to an error caused by a malfunction of the internal circuit or a thermal change of the device due to long-term use. In this case, as the time passes, a plurality of flashing lights randomly blink, which causes a problem that interferes with the driver's view.

Therefore, in the technical field, there is a demand for a technology development for a road guidance system that allows a driver to stably guide a driving lane by sequentially blinking a plurality of flashing lights installed along a road.

The present invention is to solve the above-mentioned problems of the prior art, a plurality of flashing lights arranged in a row along the road by sequentially flashing in sequence according to a predetermined time flashing light of the sequential flashing method to guide the road safely The purpose is to provide a road guidance system used.

In addition, the present invention allows a plurality of flashing lights to determine the flashing time through the internal wireless communication with each other can significantly reduce the error of the flashing cycle and the reliable flashing of the sequential flashing method to enable reliable sequential flashing and road guidance using the same There is another purpose in providing the system.

The present invention for achieving the above object,

A power supply unit supplying power to each functional unit at a rear stage; At least one light emitting device which is turned on by the light emission control signal and emits light; At least one light emitting device which is turned on by the light emission control signal and emits light; A storage unit which stores a flashing cycle and a sequence number of a preset flashing light; A wireless communication unit which transmits the stored sequence number to the outside and receives the sequence number transmitted from the plurality of other flashing lights when the light emitting device is turned on by using wireless communication; And a control unit which turns on the light emitting device by outputting the light emission control signal after delaying the blink period by the difference between the two orders if the order number received from the plurality of other blinkers is smaller than its own order. Provides a flashing of a sequential flashing method including a.

In an embodiment of the present invention, the control unit, the comparison unit for comparing the order received from the plurality of other flashing lights and their own order; A calculation unit for calculating a difference value of the sequence number if the received sequence number is smaller than its sequence number as a result of the comparison; A delay unit delaying an ON time point of the light emitting device by a result of multiplying a difference value according to the operation result and a flashing period of the stored flashing light; And a signal output unit configured to output a light emission control signal for turning on the light emitting device after the delayed time. It includes.

In an embodiment of the present invention, the flashing light further includes an input unit for inputting the flashing cycle and the sequence number of the flashing light, and the data input by the input unit is automatically updated in the storage unit.

In an embodiment of the present invention, it is preferable that each of the plurality of flashing lights have the same flashing period.

In an embodiment of the present invention, the sequence number of the flashing lights is preferably assigned to a serial number in the order that the plurality of flashing lights are arranged.

In an embodiment of the present invention, the power supply unit preferably receives power from the outside to supply power to the interior of the flashing light.

In an embodiment of the present invention, the power supply unit, a light collecting device for collecting electrical light to generate electrical energy; A power supply unit supplying power using the generated electric energy; And charging unit for charging at least a portion of the power; It may include.

In addition, the present invention for achieving the above object,

It includes a plurality of flashing lights arranged in sequence, each of the plurality of flashing lights includes at least one light emitting device and is sequentially assigned in accordance with the arrangement order so that each time the light emitting device is ON And transmits its own turn number through wireless communication, and each of the plurality of blinkers turns on / off the light emitting device according to its preset flashing cycle, and receives another turn number through the wireless communication. In the case that the received sequence number of other flashing lights is smaller than the sequence number of the road using the flashing light of the sequential flashing method, the light emitting device is turned on / off after delaying the flashing cycle by the difference of the sequence number. Provide a guidance system.

In an embodiment of the present invention, each of the flashing lights includes an input unit for inputting the flashing cycle and the sequence number of the flashing lights, and the data input by the input unit is automatically updated.

In this case, it is preferable that the wearing unit further inputs a blinking interval between the plurality of blinking lights, divides the plurality of blinking lights into sections according to the input blinking interval, and flashes the blinking lights in the section sequentially.

In an embodiment of the present invention, it is preferable that each of the plurality of flashing lights have the same flashing period.

In an embodiment of the present invention, it is preferable that the plurality of flashing lights are divided into a plurality of sections, and the same sequence of flashing lights for each section is blinked at the same time.

In an embodiment of the present invention, the road guidance system preferably further comprises a power supply for supplying commercial power to each of the flashing lights.

In an embodiment of the present invention, the road guidance system, the light condensing element for collecting electrical light to generate electrical energy; A power supply unit supplying power to each of the flashing lights using the generated electric energy; And charging unit for charging at least a portion of the power; It is preferable to include.

According to the present invention, a plurality of flashing lights arranged in a line along the road may be sequentially guided to the driver by blinking sequentially.

In addition, according to the present invention by dividing a plurality of flashing lights installed on the road into a plurality of sections can be led to the driver's road safely by sequentially flashing the flashing lights sequentially for each section.

In addition, according to the present invention by guiding the road by flashing a plurality of flashing lights sequentially, the driver can check the shape of the road at a glance to help safe driving.

In addition, the present invention can significantly reduce the error of the flashing cycle by allowing a plurality of flashing lights to determine the flashing time through the internal wireless communication with each other, it is possible to enable reliable sequential flashing.

1 is an exemplary view in which a plurality of flashing lights are arranged in a line on the road according to the present invention.
2 is a view illustrating a blink cycle of a blinking light according to an embodiment of the present invention.
3 is a block diagram showing the configuration of a flashing light according to an embodiment of the present invention.
4 is a detailed configuration diagram of a control unit according to the present invention.
5 is a view for explaining the principle of operation of the road guidance system using a flashing light of a sequential blinking method according to the present invention.
6 is a view showing a sequential flashing result of a flashing light according to the operation principle of FIG.
7 is a time chart according to the sequential flashing of the blinking lights in the road guidance system according to an embodiment of the present invention.
8 is a time chart showing the sequential flashing of the blinking light for each section in the road guidance system according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, 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 in which a plurality of flashing lights are arranged in a line on the road according to the present invention.

As shown in FIG. 1, the blinking lights 110 according to the present invention are arranged in a plurality in a row along the road 20 according to the driving direction of the vehicle 10, and blink according to a preset blinking period, particularly at night or in rainy weather. The road 20 is guided for safe driving of the vehicle 10. In the present invention, the flashing of the flashing light 110 means that the flashing light is ON / OFF, that is, the flashing light is turned on and off. In addition, the sequential flashing of the flashing light 110 means that a plurality of flashing lights 11 to 16 are sequentially turned on / off. For example, in the exemplary view of FIG. 1, after the first blinking light 11 is turned on (ON / OFF), the second blinking light 12 is turned on (ON / OFF), and the third, fourth, fifth, and sixth lights are continued. .. Blinking light (13 ~ 16) is turned on / off in order. In some cases, the plurality of flashing lights 110 may be divided by sections, and the flashing may be sequentially performed within each section. For example, when three flashing lights are divided into one section, the first to third flashing lights 11 to 13 become the first section, and the fourth to the sixth flashing lights 14 to 16 become the second section, and the first, third, and third flashing lights 11 to 13 are the first section. The second and third flashing lights 11 to 13 may be sequentially blinked, and the fourth, fifth, and sixth blinking lights 14 to 16 may be sequentially blinked in the second section. At this time, preferably, the same flashing sequence number for each section is to be blinked at the same time. That is, the first flashing light 11 and the fourth flashing light 14, which are the first turn in each section, are blinked at the same time, and the second flashing light 12 and the fifth flashing light 15, which are the second turn at the same time, blink at the same time. It is to be possible. As such, the blinking interval of the blinking lamp 110 which is blinking at the same time may be arbitrarily set and changed by the user.

2 is a view illustrating a blink cycle of a blinking light according to an embodiment of the present invention.

Referring to FIG. 2, each of the blinkers 110 according to the present invention automatically blinks (ON / OFF) according to a preset blink cycle. In the drawing, the time t1 at which the blinker 110 is turned ON and the time t2 at which the blinker 110 is turned off become the blinking period T. Preferably, the on / off time t1 / t2 and the flashing period T may be arbitrarily set and changed by the user, but are preferably predetermined at a specific value during manufacture. Therefore, unless there is special control, the flashing light flashes according to a predetermined flashing cycle. Preferably the on time t1 and the off time t2 are equal. At this time, each of the flashing lights 110, all of the flashing time is synchronized. This allows a certain blinker to blink at a certain time.

3 is a block diagram showing the configuration of a flashing light according to an embodiment of the present invention.

Referring to FIG. 3, the blinking lamp 110 according to an exemplary embodiment of the present invention includes a light collecting element 111, a power supply unit 112, a charging unit 113, a light emitting element 114, a storage unit 115, and a wireless communication unit 116. ) And a control unit 117. In addition, the flashing light 110 may further include an input unit 118.

The light collecting element 111 collects sunlight and generates electric energy using the light. As the light collecting element 111, a conventional solar cell may be used. For example, when solar light with energy larger than the band width is irradiated to a semiconductor junction region having a PN junction surface, electrons and holes are generated, and the internal electric field formed in the junction region moves electrons to N-type semiconductor and holes to P-type semiconductor. It uses the principle of generating electromotive force.

The power supply unit 112 supplies power to the rear stages using the electric energy generated by the light collecting element 111, and the charging unit 113 charges at least a part of the power supply. In an emergency, the power supply unit 112 supplies power to the rear end by using the power stored in the charging unit 113.

In this case, although not shown in the drawings, the light collecting element 111 and the power supply 112 may be replaced with a power supply unit (not shown) for supplying commercial power. This is intended to supply the power to the flashing light 110 by wire using a commercial power source rather than condensing sunlight and supplying power. Some of such commercial power is provided to the charging unit 113 to be charged. This is to supply power to the rear stage by using the power charged in the charging unit 113 when the power supply failure of the commercial power supply.

At least one light emitting device 114 is provided and emits light by a light emission control signal. That is, the light emitting element 114 blinks in accordance with the ON / OFF output of the light emission control signal. The light emitting device 114 may preferably use a light emitting diode (LED).

The storage unit 115 stores data about a blinking interval of the preset blinking light 110 and the sequence number of the corresponding blinking light 110, and a blinking interval between the blinking lights 110 in which a plurality of blinking lights 110 blink at the same time. Flashing period of the flashing light 110 is determined by the on time (t1) and off time (t2) of the flashing light 110, as shown in Figure 2, the order is the order of the corresponding flashing light when installed in line along the road It means the position number according to. In addition, the flashing interval means a distance interval between the flashing lights that are blinking at the same time when divided into a plurality of sections.

The wireless communication unit 116 transmits and receives its own preset number among the plurality of flashing lights 110 through short range wireless communication. In this case, the serial transmission in the wireless communication unit 116 is performed when the light emitting device 114 is turned on. In other words, for example, the light emitting device 114 of the first flashing light 11 is turned on and at the same time, the wireless communication unit 116 of the flashing light 11 transmits the sequence number of the corresponding flashing light 11 to the outside through wireless communication. To send. In this case, it will be received by each of the wireless communication unit of a plurality of different flashing lights (12-16). This sequence number is preferably assigned a series of numbers in the order arranged along the roadway. For example, in the example of FIG. 1, the order of the first to sixth flashing lights 11 to 16 may be sequentially determined to be 1,2,3,4,5,6. In addition, such short-range wireless communication may use a wireless communication method such as Zigbee, Bluetooth, NFC.

The control unit 117 compares the sequence number received from the plurality of different flashing lights 110 through the wireless communication unit 116 with the size of the sequence number stored in advance, delays the flashing cycle by the difference value of the sequence, and then emits the light emission control signal. By outputting to the light emitting element 114, the flashing time of the corresponding flashing light is controlled. That is, the output delay time of the emission control signal may be calculated as in Equation 1 below.

This delay time is calculated for each flashing light, respectively, and determines when to start the flashing light. That is, the corresponding flashing light is emitted after delaying the light emission time for the delay time calculated as described above. Further, the calculation of the delay time is performed when each flashing light receives a turn of another blinking light transmitted through wireless communication, and when another turn is received later, the previous calculation is ignored and recalculated to upgrade.

On the other hand, the input unit 118 inputs the flashing cycle and the sequence number of the corresponding flashing light (110). That is, when the user wants to change the flashing cycle and the order of the flashing light 110 to input the desired data. The data input by the input unit 118 is automatically updated in the storage unit 115. Preferably, the input unit 118 may further have a function of inputting a flashing interval between the plurality of flashing lights 110.

In the plurality of flashing lights 110 having the above configuration, the flashing period, that is, the on time t1 and the off time t2 are synchronized with each other. This is to allow a specific blinker to blink at a specific time in the case of a blinker that is blinking at the same time.

4 is a detailed configuration diagram of a control unit according to the present invention.

Referring to FIG. 4, the controller 117 of the present invention includes a comparator 1171, a calculator 1172, a delay unit 1173, and a signal output unit 1174.

The comparator 1171 compares the order of the other flashing lights received through the wireless communication unit 116 with the size of its order stored in the storage 115. The calculation unit 1172 calculates the difference if the received sequence number is greater than its sequence number as a result of the comparison. The delay unit 1173 delays the flashing period by the difference calculated as described above. More specifically, by multiplying the difference value calculated as described above and the flashing period of the flashing light stored in the storage unit 115, the delay time for the time point at which the light is emitted is calculated. The signal output unit 1174 outputs an emission control signal for emitting the light emitting element 114 according to the delay time calculated as described above.

5 is a view for explaining the principle of operation of the road guidance system using a flashing light of a sequential blinking method according to the present invention.

In FIG. 5, only five flashing lights 210 to 250 are illustrated for convenience of description. The order of the first to fifth flashing lights 210 to 250 is called 1 to 5 sequentially. First, the first flasher 210 emits light according to a preset flashing cycle and simultaneously transmits its turn number 1 to other second to fifth blinkers 220 to 250 through wireless communication. Accordingly, the second to fifth blinkers 220 to 250 receive the sequence number transmitted from the first blinker 210 and compare the sequence number with its size. If it is smaller than its own turn, it delays the preset blink cycle by the difference and emits light. In other words, even if it reaches its own flashing cycle, it delays the flashing cycle by the order of difference. For example, since the sequence number of the second flashing light 220 is 2 and the sequence number of the first flashing light 210 wirelessly received is 1, the order difference is 1. Therefore, the second flashing light 220 emits light after delaying one flashing cycle. This means that it does not emit light in the first flashing cycle but emits light at the on point of the second flashing cycle.

According to this principle, since the third flashing light 230 delays two flashing cycles, the third flashing light 230 does not emit light in the first and second flashing cycles, but emits light at the time of the third flashing cycle, and the fourth flashing light 240 and the fifth flashing light 250 emits light at the on-point of the fourth flashing cycle and the on-point of the fifth flashing cycle, respectively. Of course, each of the blinkers 210 to 250 do not emit light at the off point of the blink period. As a result, as shown in FIG. 6, the flashing lights 210 to 250 are sequentially delayed by a predetermined flashing period T.

7 is a time chart according to the sequential flashing of the blinking lights in the road guidance system according to an embodiment of the present invention.

7 (a) is a time chart showing the flashing cycle of each flashing light, and FIGS. 7 (b) to 7 (d) are time charts showing sequential flashing of the flashing light. First, referring to FIG. 7A, each flashing light has a synchronized flashing period. It is set in advance and each blinking light basically flashes according to this blinking cycle unless another control signal is received.

In the case of FIG. 7B, the first flashing light emits light at an on time t1 according to the initial blinking cycle. At this time, its own number 1 is sent out simultaneously with light emission. The number 1 sent in this way is received by all other flashing lights and the difference value is calculated.

In the case of FIG. 7C, since the second flashing light compares its turn number 2 with 1 sent out, and the difference is 1, at the time when the second flashing period T2 is turned on, the first flashing period T1 is delayed. It emits light. At the same time, in the case of FIG. 7 (d), the third flashing light also compares its turn number 3 with 1 sent out, and therefore the first flashing period T1 and the second flashing period T2 are delayed. Light is emitted when the third flashing period T3 is turned on. At the same time, the fourth, fifth, sixth, ... flashing lights also delay the blinking cycle to determine the time of emission. This enables sequential flashing between multiple flashing lights.

8 is a time chart showing the sequential flashing of the blinking light for each section in the road guidance system according to another embodiment of the present invention.

As described in FIG. 1, in the present invention, the plurality of flashing lights 110 may be divided by sections, and the flashing may be sequentially performed within each section. This interval is determined by the flashing intervals of a plurality of flashing lights. 8 shows an example in which three flashing lights are divided into one section. That is, it is an example which made three blinking intervals.

Referring to Figure 8, Figure 8 (a) is a synchronized flashing cycle of each flashing light. In FIGS. 8B and 8E, the first flashing light in each section emits light at an ON time point t1 according to the initial flashing period. In FIGS. 8C and 8F, the second flashing light in each section delays the first flashing period T1 and emits light at the ON point of the second flashing period T2.

In this embodiment, since the blinking interval is 3, the fourth blinking period T4 is turned on after the first to third blinking periods T1 to T3 have elapsed in FIGS. 8B and 8E. Light emission at the time point. As a result, in the cases of FIGS. 8C and 8F, light is emitted again at the ON point of the next flashing period T5. By causing such flashing to be repeated, the flashing is sequentially performed simultaneously in the section. This blinking interval can be arbitrarily set and changed by the user according to the degree of bending of the road.

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. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit 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. For this purpose, the installation of reflectors or flashing lights along the road is required.

In view of this aspect, the present invention enables the blinking lights installed in a plurality of lines along the road to be sequentially flashed, thereby enabling the driver to accurately and safely guide the road, especially at night. Therefore, the present invention will be very usefully applied not only to daily life but also to the industry for transporting logistics through night driving.

10: vehicle 11-16, 110, 210-250: flashing light
111: light collecting element 112: power supply
113 charging unit 114 light emitting device
115: storage unit 116: wireless communication unit
117 control unit 118 input unit

Claims (14)

Power supply for supplying power to each functional part in the back
At least one light emitting device which is turned on by the light emission control signal and emits light;
A storage unit which stores a flashing cycle and a sequence number of a preset flashing light;
A wireless communication unit which transmits the stored sequence number to the outside and receives the sequence number transmitted from the plurality of other flashing lights when the light emitting device is turned on by using wireless communication; And
A control unit which turns on the light emitting device by outputting the light emission control signal after delaying the blink period by the difference between the two orders when the order number received from the plurality of other blinkers is smaller than the order number; Flashing light of a sequential flash method including a. The method of claim 1, wherein the control unit,
A comparison unit for comparing the sequence number received from the plurality of other flashing lights and the sequence number thereof;
A calculation unit for calculating a difference value of the sequence number if the received sequence number is smaller than its sequence number as a result of the comparison;
A delay unit delaying an ON time point of the light emitting device by a result of multiplying a difference value according to the operation result and a flashing period of the stored flashing light; And
A signal output unit configured to output a light emission control signal for turning on the light emitting device after the delayed time; Flashing light of a sequential flash method including a. The method of claim 1,
And an input unit for inputting a blinking cycle and a sequence number of the blinking lights, wherein the data inputted by the input unit is automatically updated in the storage unit. The method of claim 1,
Each of the plurality of flashing lights is a flashing light of the sequential flashing method characterized in that the flashing cycle is the same. The method of claim 1,
The sequence number of the flashing light is a flashing light of a sequential flashing method characterized in that the serial number is given in the order of the plurality of flashing lights arranged. The method of claim 1, wherein the power supply unit,
The flashing light of the sequential flashing method characterized by receiving a commercial power from the outside to supply power to the interior of the flashing light. The method of claim 1, wherein the power supply unit,
A light collecting device that collects sunlight to generate electrical energy;
A power supply unit supplying power using the generated electric energy; And
A charging unit for charging at least a portion of the power; Flashing light of a sequential flashing method comprising a. Including a number of flashing lights arranged in sequence,
Each of the plurality of flashing lights includes at least one light emitting device and is sequentially assigned in the order of the arrangement so that each time the light emitting device is turned on, it transmits its assigned number through wireless communication. ,
Each of the plurality of flashing lights turns on / off the light emitting device according to a preset flashing cycle of the plurality of flashing lights, and when the number of flashing lights is received through wireless communication, the sequence of the received flashing lights is different. The road guidance system using a sequential flashing light, characterized in that the light emitting device on / off after delaying the flashing cycle of their own by less than their turn if the order is smaller than their turn. The method of claim 8, wherein each of the flashing lights,
And an input unit for inputting a blinking cycle and a sequence number of the blinking lights, and the data input by the input unit is automatically updated. The method of claim 9, wherein the input unit,
The flashing interval between the plurality of flashing lights is further input, and the plurality of flashing lights are divided into sections according to the input flashing interval, and the flashing lights in the section are sequentially flashed. Road guidance system. The method of claim 8,
Each of the plurality of flashing lights is a road guidance system using a flashing light of the sequential flashing method characterized in that the flashing cycle is the same. The method of claim 8,
The plurality of flashing lights divided into a plurality of sections and the same sequence of flashing lights for each section of the road guidance system using a flashing light of the sequential flashing method characterized in that the flashing at the same time. The method of claim 8,
Road guidance system using a sequential flashing method of flashing light, characterized in that it further comprises a power supply for supplying commercial power to each of the flashing lights. The method of claim 8,
A light collecting device that collects sunlight to generate electrical energy;
A power supply unit supplying power to each of the flashing lights using the generated electric energy; And
A charging unit for charging at least a portion of the power; Road guidance system using a flashing light of the sequential flashing method comprising a.

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