JP6422124B2 - Arrow board display controller - Google Patents

Description

  The present invention relates to an arrow plate display control device that displays a plurality of arrow plates installed on a road in conjunction with each other.

  When it is necessary to control lanes when performing construction on the road, etc., arrow boards that are installed on the road and guide general vehicles are used, and multiple arrow boards with arrow display light emitting parts are linked. Thus, there is known a lighting operation (see Patent Document 1). In general, in this type, a plurality of arrow plates in which the lighting order is set in advance are arranged in that order. However, it took a lot of effort to arrange the arrow plates in a predetermined order. In view of this, an interlocking arrow display device has been proposed that sequentially assigns ranks to a plurality of arrow plates in accordance with the order of activation (see Patent Document 2).

Utility Model Registration No. 3165448 JP 2014-20033 A

  However, the above device is a bucket relay system using a timing timer that controls the timing of the blinking operation, and since the order for the plurality of arrow plates is given in the order of activation, the display control operation is restricted by the order of activation. There was a problem that.

  The object of the present invention is to automatically set the lighting attribute according to the installation position of the arrow plate, and even if a plurality of arrow plates are randomly installed, these arrow plates are lit in conjunction. Provided is an arrow plate display control device which is configured to operate.

The invention according to claim 1 is an arrow plate display control device in which a plurality of arrow plates each having an arrow display light emitting unit are installed on a road, and the plurality of arrow plates are displayed in conjunction with each other. comprising a light-emitting lighting control means for activating the reception of the signal, the lighting timing attributes sent from the light emitting lighting control unit, and a lighting timing attributes transferring means for wireless transfer to the emission lighting control means of another arrow plate, said plurality Each of the arrow plates is provided with a radio antenna of the light emission lighting control means on the front side of the electromagnetic shield body and a radio antenna of the lighting timing attribute transfer means on the back side of the electromagnetic shield body .

According to a second aspect of the present invention, there is provided an arrow plate display control device in which a plurality of arrow plates each having an arrow display light-emitting unit are installed on a road, and the plurality of arrow plates are displayed in association with each other. And a lighting timing attribute transfer means for wirelessly transferring the lighting timing attribute notified from the light emission lighting control means to the light emission lighting control means of another arrow plate. Position relationship recognition for recognizing the position relationship of the plurality of arrow plates based on the received electric field strength of wireless communication performed between the light emission lighting control means of the arrow plate and the lighting timing attribute transfer means of the other arrow plate Means are provided.

The invention according to claim 3 is an arrow plate display control device in which a plurality of arrow plates having arrow display light emitting portions are installed on a road, and the plurality of arrow plates are displayed in conjunction with each other. A plurality of light emission lighting control means that are activated by reception of a signal; and a lighting timing attribute transfer means that wirelessly transfers a lighting timing attribute notified from the light emission lighting control means to the light emission lighting control means of another arrow plate. When the light emission lighting control means is activated by reception of the signal wirelessly transmitted from the operation means, the arrow plate recognizes whether it is an end arrow board and then recognizes it as the end. A lighting chain attribute transfer chain that sequentially assigns lighting timing attributes is performed from the arrow plates.

According to a fourth aspect of the present invention, when the light emission lighting control means is activated by receiving the signal wirelessly transmitted from the operation means, one arrow plate communicates wirelessly with the lighting timing attribute transfer means of another arrow plate. Based on the received electric field strength of the wireless communication, it is recognized whether or not it is a terminal arrow plate, and the arrow plate recognized as the terminal indicates the lighting timing attribute determined by the light emission lighting control means. The lighting timing attribute transfer unit notifies the lighting timing attribute transfer unit, and the lighting timing attribute transfer unit wirelessly communicates the lighting timing attribute to start transfer of the lighting timing attribute to the entire other arrow plate.

In the invention of claim 5, when the lighting timing attribute transfer means of one arrow plate communicates wirelessly with the light emission lighting control means of another arrow plate, it is adjacent based on the received electric field strength of this wireless communication. The light emission lighting control means of the arrow plate is selected and transmitted, and the transfer sequence of the lighting timing attribute is performed in the order in which the plurality of arrow plates are arranged.

According to the first to third aspects of the present invention, it is possible to automatically set the lighting attribute according to the installation position of the arrow plate, and the arrow plate is lit in an interlocking manner even if the arrow plate is randomly installed. An arrow board display control device can be provided.

  In the invention of claim 1, desirable antenna characteristics can be provided on the front side and the back side of the electromagnetic shield body.

  According to the second aspect of the present invention, it is possible to accurately recognize the ends and adjacent states of the plurality of arrow plates based on the received electric field strength of wireless communication.

In the third aspect of the invention, the terminal arrow plate is recognized from among the plurality of arrow plates activated by receiving wireless transmission from the operation means, and the lighting timing attributes of the remaining arrow plates are sequentially determined based on the recognition result. Can be granted.

In the invention of claim 4 , when each arrow plate is activated by wireless transmission from the operation means, the arrow plate at the end is recognized, and then the transfer of the lighting timing attribute signal to the plurality of arrow plates is automatically started. can do.

In the invention of claim 5 , the transfer of the lighting timing attribute is chained in order from the end of the plurality of arrow plates.

It is a block diagram which shows the electric constitution of the arrow board in one Embodiment of this invention. It is a schematic explanatory drawing which shows recognition of a terminal arrow board. It is a schematic explanatory drawing which shows the whole structure of an arrow board lighting control apparatus, and the transfer chain | strand of a lighting timing attribute. It is a flowchart which shows a series of flows from starting to lighting control. It is a flowchart which shows the communication state transition between one arrow board and another arrow board. It is a flowchart which shows the operation | movement procedure of the light emission lighting control means. It is a flowchart which shows the operation | movement procedure of a lighting timing attribute transfer means.

  Hereinafter, preferred embodiments of the arrow plate display control apparatus and method according to the present invention will be described with reference to the accompanying drawings.

  The present invention is an arrow plate lighting control device 100 in which a plurality of arrow plates 12 each having an arrow display light emitting unit 11 are installed on a road, and the plurality of arrow plates 12 are displayed in conjunction with each other. The electrical configuration is shown. In the figure, the arrow plate 12 has a light emission lighting control means A that is activated upon reception of a wirelessly transmitted signal, and a light emission timing control notified from the light emission lighting control means A. A lighting timing attribute transfer means B for wireless transfer to means A and an operation instruction receiving means 13 for receiving a signal related to an operation instruction from the outside are provided. The light emission / lighting control means A includes a received electric field strength detection unit 14, a field strength determination unit 15, a lighting timing attribute storage unit 16, and a lighting timing attribute notification unit 17. The light emission lighting control means A and the lighting timing attribute transfer means B are composed of a microcomputer provided with arithmetic processing means such as a CPU, for example, and the microcomputer reads a program to be recorded on a recording medium (not shown) so that a series of procedures is performed. It has a functional configuration to execute. Further, in the figure, 18 is an antenna of the light emission lighting control means A, 19 is an antenna of the lighting timing attribute transfer means B, and 20 is an antenna of the operation instruction receiving means 13. Further, the reception field strength detection unit 14 and the field strength determination unit 15 recognize the arrow plate 12 positioned at the end among the plurality of arrow plates 12, and the lighting timing attribute transfer unit B uses the adjacent arrow plate 12. The positional relationship recognition means which recognizes is comprised.

  FIG. 2 shows the interrelationship of the plurality of arrow plates 12. In the figure, an arrow plate 12 is provided with a light emission lighting control means A having an antenna 18 for transmitting and receiving a radio signal on the front side of a metal plate 21 serving as an electromagnetic shield, and another radio is provided on the back side of the metal plate 21. A lighting timing attribute transfer means B having an antenna 19 for transmitting and receiving signals is provided, and these antennas 18 and 19 are lower than the metal plate 21. A description of a general configuration of a battery or the like that is well-known in Utility Model Registration No. 3165448 is omitted.

  FIG. 3 shows the overall configuration of the arrow plate lighting control device 100. In the figure, here, an arrow plate lighting control device 100 is configured by four arrow plates 12 installed on a road and an operation means 22 for transmitting an operation instruction signal to each arrow plate 12. In addition, the number of installed arrow plates 12 is not particularly limited.

  Next, the operation of the arrow plate lighting control device 100 having the above configuration will be described. FIG. 4 shows a series of operations of the arrow plate lighting control device 100. Here, first, a plurality of arrow plates 12 are randomly installed on the road, and the operation means 22 instructs the arrow plates 12 to start up. Signal for wireless transmission. When this signal is received by the antenna 20 of the operation instruction receiving means 13, the light emission lighting control means A and the lighting timing attribute transfer means B are activated for the arrow plate 12.

  Each of the activated arrow plates 12 is first recognized in step S1 as to whether or not each is an end arrow plate 12, and then in step S2, the arrow plate recognized as the end. The lighting timing attribute transfer chain for sequentially assigning the lighting timing attribute from 12 is performed, and then the lighting to the arrow display light emitting unit 11 is performed using the lighting timing attribute given to each arrow plate 12 in the procedure of step S3. Control is performed. Accordingly, it is possible to automatically set the lighting timing attribute according to the installation position of the arrow plate 12, and even if the arrow plate 12 is randomly installed, the arrow plate 12 is interlocked according to the lighting timing attribute. Lights up. In this case, in step S3, using the lighting timing attribute assigned to each arrow plate 12, a plurality of arrow plates 12 are instantaneously transmitted by broadcast wireless transmission by the operating means 22 at hand as shown in FIG. It can be changed to a display pattern, and various display patterns such as lighting and blinking can be changed by changing the program.

  FIG. 5 shows communication between one arrow plate 12a arbitrarily selected from the plurality of arrow plates 12 and another arrow plate 12b in relation to the series of operations of the arrow plate lighting control device 100 described above. It is a flowchart which shows a state transition. In the figure, wireless communication between the light emission lighting control means A and the lighting timing attribute transfer means B is performed between one different arrow plate 12a and another arrow plate 12b.

  When each arrow board 12 installed on the road is activated, the light emission lighting control means A of one arrow board 12a sends a wireless inquiry signal by "Phase 1" wireless communication corresponding to the procedure of Step S1. To do. When this inquiry signal is received by the lighting timing attribute transfer means B of the other arrow plate 12b, a wireless response signal is sent to the light emission lighting control means A of one arrow plate 12a.

  The light emission lighting control means A of one arrow plate 12a determines whether or not it is located at the end of an arrow plate group composed of a plurality of arrow plates 12 after sending an inquiry signal in "Phase 1". This is because the received electric field strength detection unit 14 detects the electric field strength of the response signal from the other arrow plate 12b received by the light emission lighting control means A, and whether or not the detected electric field strength has reached a predetermined value. The determination is made by the electric field strength determination unit 15. The electric field strength determination unit 15 determines that the position of the response signal is not an end when the electric field strength of the response signal detected by the reception electric field strength detection unit 14 reaches a predetermined value, while the electric field strength of the response signal reaches the predetermined value. If not reached, it is determined that its own position is the end. The end determination result is notified to the lighting timing attribute transfer means B of the own arrow plate, that is, the same arrow plate 12a.

  In addition, the terminal arrow plate recognition operation in one arrow plate 12a is similarly performed in the other arrow plate 12b. Accordingly, the lighting timing attribute transfer means B of the other arrow plate 12b receives the end determination result by the electric field strength determination unit 15 from the own arrow plate, that is, the light emission lighting control means A of the same other arrow plate 12b.

  Thus, when recognizing whether or not each of the plurality of arrow plates 12 is located at the end, each arrow plate 12 executes the above-described steps S2 and S3. Specifically, when the electric field strength determination unit 15 determines that the end of the light emission lighting control unit A of the one arrow plate 12a is “end”, the lighting timing attribute of the one arrow plate 12a is the end (first ), The light emission lighting control to the arrow display light emitting unit 11 is started. On the other hand, when the electric field strength determination unit 15 determines “not at the end” with one arrow plate 12a, the lighting timing attribute is set by wireless communication according to “Phase 2” from the lighting timing attribute transfer unit B of the other arrow plate 12b. Wait for notification. The operation of the light emission lighting control means A is similarly performed on the other arrow plate 12b.

  Further, the terminal arrow plate 12 determined by the above-described electric field strength determination unit 15 to be “end” is the other arrow plate 12b, and the light emission lighting control unit of the arrow plate 12 adjacent to the lighting timing attribute transfer unit B is used. In order to search for A, a wireless inquiry signal is transmitted in the wireless communication of “Phase 2”. When this inquiry signal is received by the light emission lighting control means A of the one arrow plate 12a that the electric field strength determination unit 15 has determined to be “not at the end”, the other arrow plate 12b is turned on from the light emission lighting control means A. A wireless response signal is sent to the timing attribute transfer means B.

  The lighting timing attribute transfer means B of the other arrow plate 12b specifies the light emission lighting control means A of the adjacent arrow plate 12 after sending the inquiry signal in “Phase 2”. This is because the response from the arrow plate 12 indicating the maximum received electric field strength among the response signals from the plurality of arrow plates 12 including the one “not end” arrow plate 12a received by the lighting timing attribute transfer means B. This is done by selecting a signal. The lighting timing attribute transfer means B of the other arrow plate 12b is one of the plurality of arrow plates 12, for example, if the response signal from one arrow plate 12a "not an end" shows the maximum electric field strength. The arrow plate 12a is specified as the adjacent arrow plate 12, and the first lighting timing attribute of the arrow plate 12a is notified to one arrow plate 12a.

  In response to this, the light emission lighting control means A of one arrow plate 12a recognizes that it is specified as the adjacent arrow plate 12 from the other arrow plate 12b having the first lighting timing attribute. Thus, it is determined that it is the second lighting timing attribute, and this is stored and saved in the lighting timing attribute storage unit 16, and light emission lighting control to the arrow display light emitting unit 11 based on the lighting timing attribute is started. To do. Also, the lighting timing attribute of the adjacent arrow plate determined here is notified and transferred by the lighting timing attribute notification unit 17 to the lighting timing attribute transfer means B of the one arrow plate 12a itself.

  Thus, when a lighting timing attribute is assigned to one arrow plate 12a that is not the end, a lighting chain attribute transfer chain that sequentially assigns the lighting timing attributes is performed on the remaining arrow plates 12 in the same manner. This is the nth (n is a natural number starting from 1) th from the light emission lighting control means A to the lighting timing attribute transfer means B with respect to the other arrow plate 12b determined by the electric field strength determination unit 15 as “not at the end”. When the lighting timing attribute is notified and transferred, according to the wireless communication procedure of “Phase 2” described above, the lighting timing becomes the nth lighting timing toward the one arrow plate 12a identified as the adjacent arrow plate, for example. Message notification of attributes. In response to this, the light emission lighting control means A of the one arrow plate 12a determines that it is the (n + 1) th lighting timing attribute, and stores and saves it in the lighting timing attribute storage unit 16, and also the lighting timing thereof. The light emission lighting control to the arrow display light emitting unit 11 based on the attribute is started. The lighting timing attribute n + 1 determined here is notified and transferred by the lighting timing attribute notification unit 17 to the lighting timing attribute transfer means B of the one arrow plate 12a itself, and is installed on the road by repeating this operation. The lighting timing attributes of all the sheet pile plates 12 that have been assigned are determined.

  Next, the operation of the light emission lighting control means A will be described in detail with reference to the flowcharts of FIGS. 2, 3 and 6. When each arrow plate 12 is activated by wireless transmission from the operation means 22 (step S11), The light emission lighting control means A of the arrow plate 12a performs wireless communication with the lighting timing attribute transfer means B of the other arrow plate 12b, and the received electric field strength detection unit 14 detects the received electric field strength of the response signal by this wireless communication. Then, by determining whether or not the detected electric field intensity has reached a predetermined value by the electric field intensity determination unit 15 (step S12), it is determined whether or not the one arrow plate 12a itself is the end (step S13). . If it is determined in this step S13 that it is the end, the process proceeds to step S14 to recognize that it is the end, and the lighting timing attribute is determined to be the first, that is, “1” (step S15). The lighting timing attribute transfer means B of one arrow board 12a is notified (step S16). Then, the lighting timing attribute signal is wirelessly communicated to start transferring the lighting timing attribute to the plurality of arrow plates 12 (step S17). Here, when the light emission lighting control means A of the one arrow plate 12a performs wireless communication with the lighting timing attribute transfer means B of the other arrow plate 12b, the light emission lighting control means A of the one arrow plate 12a. Makes a wireless inquiry to the lighting timing attribute transfer means B of the other arrow plate 12b, and makes a wireless response from the lighting timing attribute transfer means B of the other arrow plate 12b to the light emission lighting control means A of one arrow plate 12a "Phase 1" It corresponds to the wireless communication.

  On the other hand, when it is determined in step S13 that it is not an end, an inquiry response of the electric field strength from the lighting timing attribute transfer means B from each of the other arrow plates 12 including the other arrow plate 12b is waited (step S18). ). In this case, a wireless inquiry is made from the lighting timing attribute transfer means B of the other arrow plate 12b to the light emission lighting control means A of the one arrow plate 12a, and from the light emission lighting control means A of the one arrow plate 12a to the other arrow plate 12b. This corresponds to the wireless communication of “Phase 2” that makes a wireless response to the lighting timing attribute transfer means B.

  In the terminal arrow plate recognition operation in steps S11 to S14, the radio wave propagation direction of the antenna 18 of the light emission lighting control means A in each arrow plate 12 is restricted by the shielding of the metal plate 21 as shown in FIG. . The arrow plate 12 of the “arrow plate 2” or “arrow plate 3” positioned other than the end arrow plate 12 is in direct radio wave propagation state with the lighting timing attribute transfer means B of the adjacent arrow plate 12 whose light emission lighting control means A is adjacent. Therefore, communication is performed reliably, and a received electric field strength corresponding to the distance between one arrow plate 12a and another arrow plate 12b is obtained. However, in the arrow plate 12 of the “arrow plate 1” located at the end, there is no lighting timing attribute transfer means B of the adjacent arrow plate 12 that can directly communicate with the light emission lighting control means A, so that the received electric field strength cannot be obtained. . Further, even if communication with other arrow plates 12 is possible due to reflection of some surrounding objects, the electric field strength received by the arrow plates 12 other than the end is very weak. Since the received electric field strength cannot be obtained or is weak as described above, it is determined whether or not the terminal is the terminal arrow plate 12 by the positional relationship recognition means including the received electric field strength detecting unit 14 and the electric field strength determining unit 15. It becomes possible to recognize.

  The operation of the lighting timing attribute transfer means B will be described in detail with reference to the flowcharts of FIGS. 2, 3 and 7. When each arrow plate 12 is activated by wireless transmission from the operation means 22 (step S21), another arrow plate is displayed. The lighting timing attribute transfer means B 12b makes an inquiry response of the electric field strength from the light emission lighting control means A of each of the other arrow plates 12 including the one arrow plate 12a in accordance with the above-described "Phase 1" wireless communication ( Step S22).

  After that, when the lighting timing attribute is determined by the light emission lighting control means A of the other arrow plate 12b, and this lighting timing attribute is notified and transferred to the lighting timing attribute transfer means B, according to the wireless communication of "Phase 2" described above, An inquiry of the electric field strength is made to the light emission lighting control means A of each of the other arrow plates 12 including the one arrow plate 12a (step S23). In response to this, when response signals are received from the light emission lighting control means A of each arrow plate 12, the electric field strengths of these response signals are individually detected to determine which response signal is detected at the maximum electric field strength. By doing so (step S24), the light emission lighting control means A of the arrow plate 12 adjacent to the other arrow plate 12b is searched (step S25). Then, a lighting timing attribute signal is transmitted to the light emission lighting control means A of the adjacent arrow plate 12 (step S26), and by repeating this operation, the lighting timing attribute is transferred in the order in which the plurality of arrow plates 12 are arranged. It is a chain.

  In the lighting timing attribute transfer chain described above, the radio wave propagation direction of the antenna 19 of the lighting timing attribute transfer means B of each arrow plate 12 is limited by shielding the metal plate 21 as shown in FIG. For this reason, for example, the lighting timing attribute transfer means B of the arrow plate 12 labeled “arrow plate 2” is directly propagated with the light emission lighting control means A of the arrow plate 12 labeled “arrow plate 3” on the right side. Since it is not shielded in the state, the communication is reliably performed, and the received electric field strength corresponding to the distance between the arrow plates 12 is obtained. However, it cannot communicate directly with the light emission lighting control means A of the arrow plate 12 marked “arrow plate 1” on the left side. Although not shown, there is a possibility that communication can be made with the light emission lighting control means A of the arrow plate 12 on the two right sides from the “arrow plate 2”, but the adjacent arrow plate 12 marked “arrow plate 3” described above. It is much weaker than the received electric field strength from. Since the received electric field strength is not obtained or weak as described above, the lighting timing attribute transfer unit B serving as the positional relationship recognition unit uses the arrow plate 12 having the strongest received electric field strength on the right side as the adjacent arrow plate 12. It becomes possible to recognize.

  As described above, in the above embodiment, in the arrow plate lighting control device in which a plurality of arrow plates 12 having the arrow display light emitting unit 11 are installed on the road and the plurality of arrow plates 12 are displayed in conjunction with each other, Is a lighting timing for wirelessly transferring the lighting timing attribute notified from the light emission lighting control means A to the light emission lighting control means A of the other arrow plate 12 that is activated by reception of a wirelessly transmitted signal. By providing the attribute transfer means B, it is possible to automatically set the lighting attribute according to the position of the arrow plate 12, and the arrow plate 12 is interlocked even if the arrow plate 12 is randomly installed. Can be lit.

  Moreover, in the said embodiment, reception of the radio | wireless communication performed between the light emission lighting control means A of one arrow board 12a and the lighting timing attribute transfer means B of the other arrow board 12b in the some arrow board 12 is carried out. As a positional relationship recognition means for recognizing the positional relationship of the arrow plate 12 based on the electric field strength, the reception electric field strength detection section 14, the electric field strength determination section 15, and the lighting timing attribute transfer means B are provided. Based on the electric field strength, the ends and adjacent states of the plurality of arrow plates 12 can be accurately recognized.

  Moreover, in the said embodiment, while providing the radio | wireless antenna 18 of the light emission lighting control means A in the front side of the metal plate 21 used as an electromagnetic shielding body, the radio | wireless antenna 19 of the lighting timing attribute transfer means B was provided in the back side of the metal plate 21. Thus, desirable antenna characteristics can be provided on the front side and the back side of the metal plate 21.

  Moreover, in the said embodiment, only the radio | wireless antenna 19 of the lighting timing attribute transfer means B provided in the back side of the metal plate 21 of one arrow board 12a, and the light emission provided in the front side of the metal plate 21 of the other arrow board 12b. Since the radio antennas 18 and 19 and the metal plate 21 are arranged so as to enable radio communication with the radio antenna 18 of the lighting control means A, the antenna characteristics can be improved.

  Further, in the above embodiment, each of the plurality of arrow plates 12 recognizes whether or not it is the end arrow plate 12 when the light emission lighting control means A is activated upon receiving a signal wirelessly transmitted from the operation means 22. An operation is performed, and a structure for performing a transfer sequence of lighting timing attributes for sequentially assigning lighting timing attributes to the other arrow plates 12 from the arrow plate 12 recognized as the terminal next is provided. Therefore, the terminal arrow plate 12 is recognized from among the plurality of arrow plates 12 activated by receiving wireless transmission from the operation means 22, and lighting timing attributes of the remaining arrow plates 12 are sequentially assigned based on the recognition result. can do.

  In other words, when the light emission lighting control means A of one arrow plate 12a is activated upon receiving a signal wirelessly transmitted from the operation means 22, the arrow plate lighting control device 100 here transfers the lighting timing attribute of the other arrow plate 12b. The wireless communication of “Phase 1” is performed with the means B, and it is recognized whether or not it is the terminal arrow plate 12 based on the received electric field strength of the wireless communication. Then, the arrow plate 12 recognized as the terminal determines its lighting timing attribute to, for example, “1” by the light emission lighting control means A, notifies the lighting timing attribute transfer means B, and the lighting timing attribute transfer means. The lighting timing attribute signal is wirelessly communicated to the light emission lighting control means A of each arrow plate 12 recognized that B is not a terminal, so that transfer of the lighting timing attribute to these arrow plates 12 is started. . Therefore, when each arrow board 12 installed on the road is activated by wireless transmission from the operation means 22, the arrow board 12 at the end is recognized, and then the lighting timing attribute signal is transferred to the plurality of arrow boards 12. Can start automatically.

  In the above embodiment, when the lighting timing attribute transfer means B of one arrow plate 12a performs "Phase 2" wireless communication with the light emission lighting control means A of the other arrow plate 12b, the reception is performed. Based on the electric field intensity, the light emission lighting control means A of the adjacent arrow plate 12 is selected and transmitted, and the arrow plate lighting control device is arranged so that the transfer of the lighting timing attribute is chained in the order in which the plurality of arrow plates 12 are arranged. 100. Therefore, the lighting timing attribute transfer unit B of each arrow plate 12 accurately identifies the adjacent arrow plate 12 based on the received electric field strength accompanying the wireless communication with the light emission lighting control unit A of the other arrow plate 12. The transfer of the lighting timing attributes is chained in order from the end of the plurality of arrow plates 12.

  Thus, in the said embodiment, since it is not necessary to arrange and install the several arrow board 12 in the determined order, a big effort can be abbreviate | omitted. Moreover, since the order of the lighting timing attribute given to the plurality of arrow plates 12 is not given in the order of activation, the display control operation for the arrow display light emitting unit 11 is restricted to the order of activation. This problem can be solved.

  In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the meaning of this invention.

A light emission lighting control means B lighting timing attribute transfer means (positional relationship recognition means)
DESCRIPTION OF SYMBOLS 11 Arrow display light emission part 12 Arrow board 14 Reception electric field strength detection part (Positional relationship recognition means)
15 Electric field strength determination unit (positional relationship recognition means)
18, 19 Radio antenna 21 Metal plate (electromagnetic shield)
22 Operating means

Claims (5)

In the arrow plate display control apparatus in which a plurality of arrow plates having arrow display light emitting units are installed on a road and the plurality of arrow plates are displayed in conjunction with each other, the arrow plate has a light emission that is activated upon reception of a wirelessly transmitted signal. Lighting control means, and lighting timing attribute transfer means for wirelessly transferring the lighting timing attribute notified from the light emission lighting control means to the light emission lighting control means of the other arrow plate,
Each of the plurality of arrow plates is provided with a radio antenna of the light emission lighting control means on the front side of the electromagnetic shield body, and a radio antenna of the lighting timing attribute transfer means on the back side of the electromagnetic shield body. Arrow board display controller. In the arrow plate display control apparatus in which a plurality of arrow plates having arrow display light emitting units are installed on a road and the plurality of arrow plates are displayed in conjunction with each other, the arrow plate has a light emission that is activated upon reception of a wirelessly transmitted signal. Lighting control means, and lighting timing attribute transfer means for wirelessly transferring the lighting timing attribute notified from the light emission lighting control means to the light emission lighting control means of the other arrow plate,
Further, a position for recognizing the positional relationship of the plurality of arrow plates based on the received electric field strength of wireless communication performed between the light emission lighting control unit of one arrow plate and the lighting timing attribute transfer unit of another arrow plate arrow plate display controller you comprising the relationship recognizing means. In the arrow plate display control apparatus in which a plurality of arrow plates having arrow display light emitting units are installed on a road and the plurality of arrow plates are displayed in conjunction with each other, the arrow plate has a light emission that is activated upon reception of a wirelessly transmitted signal. Lighting control means, and lighting timing attribute transfer means for wirelessly transferring the lighting timing attribute notified from the light emission lighting control means to the light emission lighting control means of the other arrow plate,
The plurality of arrow plates recognize whether or not they are the end arrow plates when the light emission lighting control means is activated by receiving the signal wirelessly transmitted from the operation means, and then the end arrow boards. from recognized arrow plate, sequentially arrows plate display controller said structure and the be transferred chains of lighting timing attribute to impart lighting timing attributes. One arrow plate performs wireless communication with the lighting timing attribute transfer means of the other arrow plate when the light emission lighting control means is activated by reception of the signal wirelessly transmitted from the operation means, and Based on the received electric field strength, recognize whether it is the arrow board at the end,
The arrow plate recognized as the terminal notifies the lighting timing attribute transfer means determined by the light emission lighting control means to the lighting timing attribute transfer means, and the lighting timing attribute transfer means wirelessly communicates the lighting timing attribute to 4. The arrow plate display control device according to claim 3 , wherein transfer of the lighting timing attribute to the entire arrow plate is started. When the lighting timing attribute transfer means of one arrow plate wirelessly communicates with the light emission lighting control means of another arrow plate, the light emission lighting control of the adjacent arrow plates is based on the received electric field strength of this wireless communication. 4. The arrow plate display control device according to claim 3 , wherein a means is selected and transmitted, and a transfer sequence of lighting timing attributes is performed in the order in which the plurality of arrow plates are arranged.

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