JP6311527B2 - Lighting system - Google Patents

Description

  The present invention relates to a lighting system that controls lighting on and off according to the position of a user in a room equipped with a tag.

  As an example of an illumination system that controls lighting on and off according to the location of a user in a room, for example, in Patent Document 1, a receiver provided in the vicinity of a luminaire and a tag carried by the user (mobile) There has been proposed a lighting fixture for lighting and dimming control of lighting means by using identification information registered in advance during communication. However, when a plurality of lighting devices are installed in a room and a user is located in an area where radio waves of a plurality of receivers provided in the vicinity of a lighting fixture overlap with each other, a tag carried by the user is received by a plurality of tags. There is a problem that the battery of the tag becomes large because it communicates with all the devices.

JP 2005-259430 A

  The objective of this invention is providing the illumination system which eliminates the said subject and makes consumption of the battery of the tag with which the user was equipped smaller.

  In the lighting system according to the present invention, a tag carried by a user, a plurality of antenna IDs installed in the area, an antenna ID for identifying itself being transmitted to the tag, a tag reader receiving the antenna ID transmitted by the tag, and a tag reader A lighting device that is turned on when the antenna ID that is allocated and received by the tag reader matches the antenna ID that identifies the tag reader, and that is turned off when the antenna ID that identifies the tag reader has not been received for a first time or more. Self-seat antenna ID registration means for pre-registering the antenna ID, transmission means for transmitting the received antenna ID to the tag reader, and the received antenna ID among the antenna IDs registered in the self-seat antenna ID registration means An antenna ID determining means for transmitting the received antenna ID to the transmitting means when there is a match; Reception from all tag readers identified by the antenna ID registered in the self-seat antenna ID registration means when none of the antenna IDs registered in the self-seat antenna ID registration means matches the received antenna ID Is not received for more than the second time, the received antenna ID is transmitted to the transmission means, and reception from any tag reader identified by the antenna ID registered in the own seat antenna ID registration means is within the second time. If there is, a reception time-out determination unit that causes the transmission unit to transmit nothing is provided.

  Since the illumination system according to the present invention is configured as described above, the power consumption of the tag is further reduced by responding only to the registered tag reader when it is in the vicinity of the tag reader registered in advance in the tag. There is an effect that can be.

It is a whole block diagram of the illumination system in Embodiment 1 of this invention. It is an arrangement plan in a room of a lighting system in Embodiment 1 of the present invention. It is a detailed block diagram of the illumination system in Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the tag of the illumination system in Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the tag reader of the illumination system in Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the illuminating device of the illumination system in Embodiment 1 of this invention. It is the schematic of the response of a tag in case the user is away from the seat of the lighting system in Embodiment 1 of this invention. It is the schematic of the response of a tag in case the user is in the vicinity of the seat of the lighting system in Embodiment 1 of this invention. It is a detailed block diagram of the illumination system in Embodiment 2 of this invention. It is a flowchart which shows the tag operation | movement of the illumination system in Embodiment 2 of this invention.

Embodiment 1
Hereinafter, the configuration and operation of the present embodiment will be described with reference to FIGS.
FIG. 1 is an overall configuration diagram of the illumination system in the present embodiment. In the figure, 100 is a tag carried by the user 401. The area in the claims refers to a room (not shown) in this embodiment, but it does not matter indoors or outdoors such as a plaza where streets are installed, indoor halls, and the like.

  Reference numeral 200 denotes a tag reader, and reference numeral 300 denotes an illumination device. The tag reader 200 and the illumination device 300 are associated with each other on a one-to-one basis.

  Reference numeral 301 denotes illumination (for example, a light bulb), and the illumination control means 302 controls the lighting / extinguishing state.

  Reference numeral 402 denotes a downlink radio wave transmitted by the tag reader, and includes a signal for starting the tag 100 and an antenna ID for identifying the tag reader 200.

  Reference numeral 403 denotes an upstream radio wave transmitted by the tag, which includes an antenna ID.

  When the tag reader 200 transmits a downstream radio wave 402 to the tag 100, the tag 100 receives the downstream radio wave 402, and receives an upstream radio wave 403 transmitted by the tag, the lighting device 300 corresponding to the tag reader 200 sends the illumination control unit 302. The connected lighting 301 is turned on.

  FIG. 2 is a layout diagram of the lighting system in the room according to the present embodiment. Reference numerals 200a, 200b, 200c, and 200d are tag readers arranged on the ceiling in the room.

  300a is a lighting device corresponding to the tag reader 200a, 300b is a lighting device corresponding to the tag reader 200b, 300c is a lighting device corresponding to the tag reader 200c, and 300d is a lighting device corresponding to the tag reader 200d.

  301a is illumination connected to the illumination device 300a, 301b is illumination connected to the illumination device 300b, 301c is illumination connected to the illumination device 300c, and 301d is illumination connected to the illumination device 300d.

  Reference numeral 402a denotes a downlink radio wave reachable range transmitted by the tag reader 200a, 400b a downlink radio wave reachable range transmitted by the tag reader 200b, 400c a downlink radio wave reachable range transmitted by the tag reader 200c, and 400d a downlink radio wave reachable range transmitted by the tag reader 200d.

  FIG. 3 is a detailed configuration diagram of the illumination system in the present embodiment. Note that the transmission means in the claims refers to the tag transmission means 106 in the present embodiment.

  The tag 100 includes a tag receiving unit 101, an antenna ID extracting unit 102, an antenna ID determining unit 103, a reception timeout determining unit 104, a self-seat antenna ID registering unit 105, and a tag transmitting unit 106. The tag 100 is activated by a tag activation signal transmitted from the tag reader 200.

  It is assumed that one or more antenna IDs near the own seat are registered in the own seat antenna ID registration means 105 in advance.

  The tag receiving means 101 receives the downlink radio wave 402 transmitted by the tag reader.

  The antenna ID extraction unit 102 extracts the antenna ID from the data included in the downlink radio wave 402 received by the tag reception unit 101.

  The antenna ID determination unit 103, when there is an antenna ID previously registered in the seat ID registration unit 105 that matches the antenna ID extracted by the antenna ID extraction unit 102, causes the tag transmission unit 106 to transmit the antenna ID. Command to send.

  If there is no antenna ID registered in advance in the self-seat antenna ID registration unit 105 that matches the antenna ID extracted by the antenna ID extraction unit 102, the reception timeout determination unit 104 is registered in the self-seat antenna ID registration unit in advance. It is determined whether or not the reception of the downlink radio wave 402 transmitted by the tag reader corresponding to the antenna ID being detected is detected within the second time.

  If the reception timeout determination unit 104 determines that the corresponding radio wave is detected within the second time, the user is in the vicinity of his / her seat, and the tag transmission unit 106 is instructed to transmit the antenna ID. Do not send. As a result, the tag transmission means 106 does not transmit an upstream radio wave with respect to the downstream radio wave 402.

  If the reception timeout determination means 104 determines that the corresponding radio wave is not detected within the second time, it means that the user is not in the vicinity of his / her seat, and a command to transmit the antenna ID to the tag transmission means 106 As a result, the tag transmission means 106 transmits an upstream radio wave for the downstream radio wave 402.

  The upstream radio wave transmission means 106 transmits the antenna ID as an upstream radio wave when the tag ID registration means receives a transmission command.

  In addition, what is necessary is just to assume the time which moves to another place in a room after leaving a seat, for example, for 2nd time (for example, 3 seconds). The second time may be appropriately changed by an administrator of the lighting system.

  The tag reader 200 includes a tag activation signal generation unit 201, an antenna ID registration unit 202, a signal superimposition unit 203, a tag reader transmission unit 204, a tag reader reception unit 205, an antenna ID extraction unit 206, and a reception presence / absence unit 207.

  The tag activation signal generation unit 201 generates a tag activation signal for activating the tag 100.

  The antenna ID registration unit 202 registers an antenna ID for identifying the tag reader 200 in advance.

  The signal superimposing means 203 superimposes the tag activation signal generated by the tag activation signal generating means 201 and the antenna ID registered in the antenna ID registering means 202, and transmits them to the downlink radio wave transmitting means.

  The tag reader transmitting unit 204 transmits the data including the tag activation signal and the antenna ID superimposed by the signal superimposing unit 203 as the downlink radio wave 402.

  The tag reader receiving unit 205 receives the upstream radio wave 403 transmitted by the tag 100.

  The antenna ID extraction unit 206 extracts the antenna ID from the data included in the upstream radio wave 402 received by the tag reader reception unit 105.

  When the antenna ID extracted by the antenna ID extraction unit 206 matches the antenna ID registered in the antenna ID registration unit 202, the reception presence / absence notification unit 207 transmits a lighting command to the lighting device 300, while the first ID When there is no reception of an antenna ID that matches the antenna ID registered in the antenna ID registration means 202 for more than the time, a turn-off command is transmitted to the lighting device 300.

  The first time may be assumed to be sufficiently long (for example, 10 seconds) compared to the tag reader transmission frequency (for example, 250 milliseconds). The first time may be appropriately changed by an administrator of the lighting system.

  The illumination device 300 includes an illumination 301 and illumination control means 302.

  The illumination 301 is a general illumination such as an incandescent bulb, a fluorescent lamp, or an LED bulb, and any type can be used as long as it has the same function.

  The illumination control unit 302 controls lighting / extinguishing of the lighting 301 according to the presence / absence of reception of a lighting command and a lighting command transmitted by the reception presence / absence notification unit 206. When the lighting control unit 302 receives the lighting command, the lighting control unit 302 immediately turns on the lighting 301. When the lighting control unit 302 receives the turn-off command, the lighting unit 301 turns off the lighting 301 if the lighting command is not received again within the fourth time, and turns on the lighting 301 when the lighting command is received again within the fourth time. Maintain state.

  Note that the fourth time may be a sufficient time after the user in the room moves from the position of the lit illumination to another place (for example, 30 seconds). The fourth time may be appropriately changed by an administrator of the lighting system.

  Next, the operation of the present embodiment will be described. FIG. 4 is a flowchart showing the operation of the tag 100, which is executed when the tag 100 receives the downlink radio wave 402 transmitted by the tag reader 200.

  The downlink radio wave receiving means 101 receives the downlink radio wave 402 from the tag reader 200 (S101).

  The antenna ID extraction unit 102 extracts the antenna ID from the data included in the downlink radio wave 402 received by the tag reception unit 101 (S102).

  The antenna ID determination unit 103 determines whether the antenna ID extracted in S102 is included in the antenna IDs registered in advance in the own-seat antenna ID registration unit 105 (S103).

  In S103, when the antenna ID extracted in S102 is among the antenna IDs registered in advance in the self-seat antenna ID registration means 105 (Y in S103), the tag reader 200 that has transmitted the received downlink radio wave 402 is The tag transmission unit 106 is instructed to transmit the antenna ID, and the tag transmission unit 106 transmits the upstream radio wave 403 to the tag reader 200, and ends the process (S104).

  In S103, when the antenna ID extracted in S102 is not among the antenna IDs registered in advance in the own-seat antenna ID registration unit 105 (Y in S103), the reception timeout determination unit 104 stores the antenna ID in the own-seat antenna ID registration unit 105 in advance. It is determined whether or not the downlink radio wave 402 from the tag reader 100 identified by the registered antenna ID is detected within the second time (S105).

  In S105, if the downstream radio wave 402 from the tag reader 200 identified by the antenna ID registered in advance in the own-seat antenna ID registration unit 105 is detected within the second time (Y in S105), the reception timeout determination unit 104 Does not transmit a transmission command to the tag transmission means 106. The result tag transmission means 106 ends the process without transmitting anything.

  In S105, if the downlink radio wave 402 from the tag reader 200 identified by the antenna ID registered in advance in the seat antenna ID registration means 105 is not detected within the second time (N in S105), the received downlink The tag transmitting means 106 is instructed to transmit the antenna ID to the tag 200 that has transmitted the radio wave 402, and the tag transmitting means 106 ends the processing after transmitting the upstream radio wave 403 (S104).

  FIG. 5 is a flowchart showing the operation of the tag reader 200 after receiving the upstream radio wave 403, which is executed when the upstream radio wave 403 is received and at regular intervals that are sufficiently shorter than the first time.

  First, it is determined whether the upstream radio wave receiving means 205 has received the upstream radio wave 403 from the tag 100 (S201).

  In S201, when the uplink radio wave receiving means 205 receives the uplink radio wave 403 (Y in S201), the antenna ID extraction means 206 extracts the antenna ID from the data included in the received uplink radio wave 403 (S202).

  The reception presence / absence notification unit 207 determines whether the antenna ID extracted in S202 matches the antenna ID registered in the antenna ID registration unit 202 (S203).

  If the antenna ID extracted in S202 matches the antenna ID registered in the antenna ID registration unit 202 in S203 (Y in S203), the reception presence / absence notification unit 207 transmits a lighting command to the illumination control unit 302. (S205), and the process ends.

  If the antenna ID extracted in S202 does not match the antenna ID registered in the antenna ID registration unit 202 in S203 (N in S203), the process ends without transmitting anything to the illumination control unit 302. .

  On the other hand, if the upstream radio wave reception unit 205 does not receive the upstream radio wave 403 in S201 (N in S201), the reception presence / absence notification unit 207 receives an antenna ID that matches the antenna ID registered in the antenna ID registration unit 202. It is determined whether there is no period longer than the first time (S205).

  In S205, if there is no reception of an antenna ID that matches the antenna ID registered in the antenna ID registration means 202 for a period of time equal to or longer than the first time (N in S205), the reception presence / absence notification means 207 notifies the illumination control means 302. A turn-off command is transmitted (S206), and the process ends.

  On the other hand, in S205, if the period during which no antenna ID matching the antenna ID registered in the antenna ID registration unit 202 is not received is less than the first time (N in S205), nothing is stored in the illumination control unit 302. The process ends without sending.

  FIG. 6 is a flowchart showing the operation of the lighting device 300, and is executed when the reception presence / absence notification unit 207 transmits a lighting command or a light-off command to the lighting control unit 302. When there is no notification, the illumination control means 302 maintains the lighting / extinguishing state of the lighting 301.

  First, it is determined whether or not the lighting control unit 302 has received a lighting command from the reception presence / absence notification unit 207 (S301).

  If the lighting control unit 302 receives a lighting command in S301 (Y in S301), the lighting control unit 302 turns on the lighting 301 (S302) and ends the process.

  In S301, when the illumination control unit 302 has not received the lighting command (N in S301), it is determined whether or not the lighting control unit 302 has received a turn-off command from the reception presence / absence notification unit 207 (S303).

  In S303, when the illumination control unit 302 receives the turn-off command (Y in S303), it is determined whether the lighting command is received within the fourth time after the illumination control unit 302 receives the turn-off command. (S304).

In S304, when the lighting control unit 302 receives the lighting command within the fourth time after receiving the turn-off command (Y in S304), the lighting control unit 302 turns on the lighting 301 (S302). The process ends.
On the other hand, in S304, when the lighting control unit 302 has not received the lighting command within the fourth time after receiving the turn-off command (N in S304), the lighting control unit 302 turns off the lighting 301 ( S305), the process is terminated.

  On the other hand, if the lighting control unit 302 has not received the lighting command in S301 (N in S303), the lighting control unit 302 maintains the lighting / extinguishing state of the lighting 301 (S306) and ends the process.

  FIG. 7 is a schematic diagram of the tag response when the user is away from his / her seat in the lighting system according to the present embodiment. Description of the parts common to FIG. 2 is omitted.

  As shown in FIG. 7, the self-seat 404 is located near the tag readers 200a and 200b, and the antenna IDs of the tag reader 200a and the tag reader 200b located near the self-seat are registered in advance in the self-seat antenna ID registration unit 105 of the tag 100. It is assumed that

  Further, it is assumed that the user 401 having the tag 100 is located in the radio wave range 402d of the tag reader 200d away from the own seat 404, and is not in the radio wave ranges 402a and 402b of the tag readers 200a and 200b near the own seat 404.

  The tag 100 provided to the user 401 receives the downlink radio wave 402d transmitted from the tag reader 200d.

  The tag 100 transmits an upstream radio wave 403d to the tag reader 200d, and the lighting fixture 300d assigned to the tag reader 200d turns on the lighting 301d.

  FIG. 8 is a schematic diagram of the tag response when the user is in the vicinity of his / her seat in the lighting system according to the present embodiment. Descriptions of parts common to FIGS. 2 and 6 are omitted.

  As shown in FIG. 8, it is assumed that a user 401 having the tag 100 is located at a position where the radio wave ranges 402a, 402b, 402c, and 402d of the tag readers 200a, 200b, 200c, and 200d near the seat 404 overlap.

  As in FIG. 8, it is assumed that the antenna IDs of the tag reader 200 a and the tag reader 200 b located in the vicinity of the own seat are registered in advance in the own seat antenna ID registration means 105 of the tag 100.

  The tag 100 provided by the user sequentially receives the downlink radio waves 402a, 402b, 402c and 402d of the tag readers 200a, 200b, 200c and 200d.

  The tag 100 transmits the upstream radio waves 403a and 403b only to the downstream radio waves 402c and 402d of the tag readers 200a and 200b corresponding to the antenna ID registered in advance in the self-seat antenna ID registration means 105, and the lighting fixtures 300a and 300b The lights 301a and 300b are turned on.

  On the other hand, the lighting fixtures 300c and 300d maintain the current lighting state without responding to the downlink radio waves 402c and 402d of the tag readers 200c and 200d.

  As described above, in the present embodiment, the antenna ID of the tag reader 200 corresponding to the lighting device 300 in the vicinity of the own seat is registered in the tag 100 in advance, and the tags other than the tag reader 200 registered in the vicinity of the own seat are registered. When the radio wave 402 is received, communication with only the tag reader 200 in the vicinity of the user's seat without a response is achieved, thereby reducing the battery consumption of the tag 100.

  In this embodiment, whether or not the reception time-out determination unit 104 has detected the reception of the downlink radio wave 402 transmitted by the tag reader corresponding to the antenna ID registered in advance in the own seat antenna ID registration unit within the second time. A method of determining, a method of determining whether or not the reception presence / absence notification unit 207 has received an antenna ID that matches the antenna ID registered in the antenna ID registration unit 202 for a second time or more, and the illumination control unit 302 The method of determining whether or not the lighting command has been received within the second time after receiving the turn-off command is to measure the elapsed time from the most recent reception using a timer counter or the like, or the time from the most recent reception. It is a general method such as memorizing and calculating the elapsed time by comparing with the current time, and what if the same function can be realized The method may also be used.

  In the present embodiment, the tag reader 200 and the lighting device 300 do not have to be one-to-one. For example, a plurality of lighting devices 300 may be controlled by one tag reader 200, and conversely, one lighting device 300 may be controlled by two or more tag readers 200.

  As a method of controlling one lighting device 300 with two or more tag readers 200, a hardware process such as a relatively simple combinational circuit or sequential circuit using the notification signal of the reception presence / absence notification unit 207 of each tag reader 200 as an input, or It can be realized by software processing.

  In the present embodiment, lighting / off control of the lighting 301 of the lighting fixture 300 is controlled by a lighting command and a lighting command from the reception presence / absence notification unit 207, but the tag 100 currently receiving the upstream radio wave 403 is controlled. The number may be counted and the number may be notified to the illumination control means 302.

  A tag ID that the tag 100 normally has for identifying each tag is added to the upstream radio wave 403 and transmitted to the tag reader 200, and the number of tag IDs received by the tag 200 within the first time is counted. .

  The lighting control unit 302 of the lighting device 300 controls the lighting / extinguishing state. However, the lighting control unit 302 may perform control such as changing the illuminance of the lighting 301 according to the number of received tag IDs.

  Furthermore, the illumination control means 302 of the illumination device 300 may perform any control such as turning off / lighting / changing the illuminance depending on the content of the command from the tag reader 200 or the time after receiving the command.

  In this embodiment, a tag and a tag reader are used. However, the present invention is not limited to the tag and the tag reader, and may be any device or device having an equivalent function such as an antenna, a mobile phone, or a smartphone.

  In addition, a part of the configuration may be modified or a part thereof may be omitted, and it is considered that the same effect as the present embodiment can be obtained.

Embodiment 2
Hereinafter, the configuration and operation of the present embodiment will be described with reference to FIGS. In FIG. 9, the same reference numerals as those in FIG. 3 denote the same or corresponding parts. 10, the same reference numerals as those in FIG. 4 denote the same or corresponding parts. The area in the claims refers to a room (not shown) in the present embodiment as well, but it does not matter indoors or outdoors such as a plaza where streets are installed, indoor halls, and the like.
FIG. 9 is a detailed configuration diagram of the illumination system in the present embodiment. Note that the transmission means in the claims refers to the tag transmission means 106 in the present embodiment.

  Tag 100 includes tag receiving means 101, antenna ID extracting means 102, antenna ID determining means 103, reception timeout determining means 104, own-seat antenna ID registering means 105 and tag transmitting means 106, communication frequency control means 107, and previous communication antenna ID registration. Means 108. The description of items with the same reference numerals as in FIG. 3 is omitted.

  The previous communication antenna ID registration means 108 registers an antenna ID for identifying the tag reader 200 that communicated last time. The communication frequency control means 107 determines whether or not communication from the same antenna continues for a third time or more based on the antenna ID registered in the previous communication antenna ID registration means 108. When communication from the same antenna continues, the antenna ID transmission command from the antenna ID determination unit 103 and the reception timeout determination unit 104 to the tag transmission unit 106 is skipped once or once every plural times.

  The third time may be assumed to be sufficiently long (for example, 1 second) as compared with the transmission frequency of the tag reader 200 (for example, 250 milliseconds). The third time may be appropriately changed by an administrator of the lighting system.

  Next, the operation of the present embodiment will be described. FIG. 10 is a flowchart showing the operation of the tag 100, which is executed when the tag 100 receives the downlink radio wave 402 transmitted by the tag reader 200.

  The downlink radio wave receiving means 101 receives the downlink radio wave 402 from the tag reader 200 (S101).

  The antenna ID extraction unit 102 extracts the antenna ID from the data included in the downlink radio wave 402 received by the tag reception unit 101 (S102).

  The antenna ID determination unit 103 determines whether the antenna ID extracted in S102 is included in the antenna IDs registered in advance in the own-seat antenna ID registration unit 105 (S103).

  In S103, when the antenna ID extracted in S102 is among the antenna IDs registered in advance in the self-seat antenna ID registration unit 105 (Y in S103), the communication frequency control unit 107 registers in the previous communication antenna ID registration unit. It is determined whether or not the response to the tag reader 200 identified by the antenna ID that has been made continues for a third time or more (S106).

When the communication frequency control unit 107 determines that the response from the tag reader 200 identified by the antenna ID registered in the communication antenna ID registration unit last time has continued for a third time or longer (Y in S106), the communication frequency control The means 107 determines whether or not the previous response is skipped (S107).

When the communication frequency control unit 107 determines that the previous response is skipped (Y in S107), the tag transmission unit 106 is configured to transmit the antenna ID to the tag reader 200 that has transmitted the received downlink radio wave 402. The tag transmission means 106 issues an instruction, and transmits the upstream radio wave 403 to the tag reader 200, and then ends the process (S104).

When the communication frequency control unit 107 determines that the previous response has not been skipped (Y in S107), the reception timeout determination unit 104 does not transmit a transmission command to the tag transmission unit 106. As a result, the tag transmitting means 106 ends the process without transmitting anything (S104).

When the communication frequency control unit 107 determines that the response from the tag reader 200 identified by the antenna ID registered in the previous communication antenna ID registration unit does not continue for the third time or longer (Y in S106), the received downlink The tag transmission unit 106 is instructed to transmit the antenna ID to the tag reader 200 that has transmitted the radio wave 402, and the tag transmission unit 106 transmits the upstream radio wave 403 to the tag reader 200 and ends the process (S104). ).

  In S103, when the antenna ID extracted in S102 is not among the antenna IDs registered in advance in the own-seat antenna ID registration unit 105 (Y in S103), the reception timeout determination unit 104 stores the antenna ID in the own-seat antenna ID registration unit 105 in advance. It is determined whether or not the downlink radio wave 402 from the tag reader 100 identified by the registered antenna ID is detected within the second time (S105).

  In S105, if the downstream radio wave 402 from the tag reader 200 identified by the antenna ID registered in advance in the own-seat antenna ID registration unit 105 is detected within the second time (Y in S105), the reception timeout determination unit 104 Does not transmit a transmission command to the tag transmission means 106. As a result, the tag transmission means 106 ends the process without transmitting anything.

  In S105, when the downlink radio wave 402 from the tag reader 200 identified by the antenna ID registered in advance in the own-seat antenna ID registration unit 105 is not detected within the second time (N in S105), the communication frequency control The means 107 determines whether or not the response to the tag reader 200 identified by the antenna ID registered in the communication antenna ID registration means last time continues for the third time or longer (S106).

When the communication frequency control unit 107 determines that the response from the tag reader 200 identified by the antenna ID registered in the communication antenna ID registration unit last time has continued for a third time or longer (Y in S106), the communication frequency control The means 107 determines whether or not the previous response is skipped (S107).

When the communication frequency control unit 107 determines that the previous response is skipped (Y in S107), the tag transmission unit 106 is configured to transmit the antenna ID to the tag reader 200 that has transmitted the received downlink radio wave 402. The tag transmission means 106 issues an instruction, and transmits the upstream radio wave 403 to the tag reader 200, and then ends the process (S104).

When the communication frequency control unit 107 determines that the previous response has not been skipped (Y in S107), the reception timeout determination unit 104 does not transmit a transmission command to the tag transmission unit 106. As a result, the tag transmitting means 106 ends the process without transmitting anything (S104).

When the communication frequency control unit 107 determines that the response from the tag reader 200 identified by the antenna ID registered in the previous communication antenna ID registration unit does not continue for the third time or longer (Y in S106), the received downlink The tag transmission unit 106 is instructed to transmit the antenna ID to the tag reader 200 that has transmitted the radio wave 402, and the tag transmission unit 106 transmits the upstream radio wave 403 to the tag reader 200 and ends the process (S104). ).

  As described above, also in the present embodiment, as in the first embodiment, the antenna ID of the tag reader 200 corresponding to the lighting device 300 in the vicinity of the person's seat is registered in the tag 100 in advance, and is registered in the vicinity of the person's seat. When the downstream radio wave 402 other than the tag reader 200 is received, communication with only the tag reader 200 in the vicinity of the user's seat without a response is achieved, thereby reducing the battery consumption of the tag 100. Furthermore, in the present embodiment, when the reception from the same tag reader 200 continues, it is only necessary to respond to the tag reader only once every several times, assuming that the user remains in the same place. This has the effect of further reducing battery consumption compared to the first embodiment.

  In the present embodiment, when the reception from the same tag reader 200 continues, the response of the tag 100 is set to once for a predetermined number of times by the communication frequency control means 107, but of course every arbitrary number of times. It may be performed once or may be thinned out at random intervals. There is no problem as long as it is sufficiently shorter than the first time (the reception interval at which the tag reader 200 transmits a turn-off command to the lighting device 300).

  Also in the present embodiment, similarly to the first embodiment, the reception time-out determination unit 104 receives the second radio wave 402 transmitted by the tag reader 200 corresponding to the antenna ID registered in advance in the seat antenna ID registration unit. A method for determining whether or not the detection has been made within the time, whether the reception presence / absence notification means 207 has not received an antenna ID that matches the antenna ID registered in the antenna ID registration means 202 for a third time or more And a method of determining whether or not the lighting control unit 302 has received a lighting command within a fourth time after receiving a turn-off command is a method of measuring an elapsed time from the most recent reception using a timer counter or the like. It is a common method such as memorizing the time from the most recent reception and calculating the elapsed time by comparing with the current time. Functions may be by any method as long realized.

  Also in the present embodiment, the tag reader 200 and the lighting device 300 do not have to be 1: 1 as in the first embodiment. For example, a plurality of lighting devices 300 may be controlled by one tag reader 200, and conversely, one lighting device 300 may be controlled by two or more tag readers 200.

  As a method of controlling one lighting device 300 with two or more tag readers 200, a hardware process such as a relatively simple combinational circuit or sequential circuit using the notification signal of the reception presence / absence notification unit 207 of each tag reader 200 as an input, or It can be realized by software processing.

  In the present embodiment, as in the first embodiment, the lighting 301 of the lighting fixture 300 is controlled to be turned on / off by the lighting command and the lighting command from the reception presence / absence notification unit 207. It is also possible to count the number of tags 100 that receive the signal and notify the illumination control means 302 of the number.

  A tag ID that the tag 100 normally has for identifying each tag is added to the upstream radio wave 403 and transmitted to the tag reader 200, and the number of tag IDs received by the tag 200 within the first time is counted. .

  The lighting control unit 302 of the lighting device 300 controls the lighting / extinguishing state. However, the lighting control unit 302 may perform control such as changing the illuminance of the lighting 301 according to the number of received tag IDs.

  Furthermore, the illumination control means 302 of the illumination device 300 may perform any control such as turning off / lighting / changing the illuminance depending on the content of the command from the tag reader 200 or the time after receiving the command.

  Also in this embodiment, the tag and the tag reader are used as in the first embodiment. However, the present invention is not limited to the tag and the tag reader. For example, an apparatus having an equivalent function such as an antenna, a mobile phone, or a smartphone. And any device.

  In addition, a part of the configuration may be modified or a part thereof may be omitted, and it is considered that the same effect as the present embodiment can be obtained.

    The present invention can be applied to an illumination system that controls turning on / off of illumination in the vicinity of a location where a user is located using an RFID tag.

DESCRIPTION OF SYMBOLS 100 Tag 101 Tag reception means 102 Antenna ID extraction means 103 Antenna ID determination means 104 Reception timeout determination means 105 Self seat antenna ID registration means 106 Tag transmission means 107 Communication frequency control means 108 Previous communication antenna ID registration means 200 Tag reader 201 Tag activation signal generation Means 202 Antenna ID registration means 203 Multiplexing unit 204 Tag reader transmission means 205 Tag reader reception means 206 Antenna ID extraction means 207 Reception presence / absence extraction means 200a Tag reader 200b corresponding to the lighting apparatus 300a Tag reader 200c corresponding to the lighting apparatus 300b Corresponding to the lighting apparatus 300c Tag reader 200d Tag reader 200e corresponding to lighting device 300d Tag reader 200f corresponding to lighting device 300e 200f lighting device 300f Corresponding tag reader 300 Illumination equipment 301 Illumination 302 Illumination control means 300a, 300b, 300c, 300b Illumination equipment installed in the room 301a Illumination connected to 300a 301b Illumination connected to 300b 301c Illumination connected to 300c 301d 300d Illumination connected to 301e Lighting connected to 300e 301f Lighting connected to 300f 401 User 402 Downward radio waves (radio waves from tag reader to tag) 403 Upside radio waves (radio waves from tag to tag reader) 404 Own seat 405 Ceiling 402a Tag reader 200a transmits in the downstream radio wave range 402b transmits in the downstream radio wave range transmitted by the tag reader 200b 402c transmits in the downstream radio wave range transmitted by the tag reader 200c 402d downloads in the downstream radio wave range transmitted by the tag reader 200d 403a 00 uplink radio 403d tag 100 an uplink radio 403b tag 100 is sent to the tag reader 200b to be transmitted to the tag reader 200a is sent to the tag reader 200d up radio waves

Claims (5)

A tag carried by a user, a plurality of tags installed in the area, an antenna ID for identifying itself being transmitted to the tag, a tag reader receiving the antenna ID transmitted by the tag, and a tag reader assigned to the tag reader, A lighting device that is turned on when the received antenna ID matches the antenna ID that identifies the tag reader, and that is turned off when there is no reception of the antenna ID that identifies the tag reader for a first time,
The tag includes a self-seat antenna ID registration unit that pre-registers an antenna ID, a transmission unit that transmits the received antenna ID to the tag reader, and an antenna ID registered in the self-seat antenna ID registration unit. When there is a match with the received antenna ID, the antenna ID determining means for transmitting the received antenna ID to the transmitting means, and the received antenna ID among the antenna IDs registered in the own seat antenna ID registering means If there is no reception from all of the tag readers identified by the antenna ID registered in the self-seat antenna ID registration means for a second time or more, the received antenna ID is sent to the transmission means. And is identified by the antenna ID registered in the self-seat antenna ID registration means. If the reception from one of said tag reader was within a second time, the illumination system, characterized in that said nothing is transmitted to the transmission unit, with a, a receive timeout determination means. The tag includes a previous communication antenna ID registration unit that stores the transmitted antenna ID, and an antenna ID registered in the previous communication antenna ID registration unit when the antenna ID has not changed for a third time or longer. The illumination system according to claim 1, further comprising: a communication frequency control unit that reduces a frequency of transmitting the message. When the antenna ID registered in the previous communication antenna ID registration unit has not changed for a third time or more, the communication frequency control unit causes the transmission unit to transmit the antenna ID with respect to the number of receptions of the antenna ID. The lighting system according to claim 2, wherein the number of times is set to one for a predetermined number of receptions. The tag reader is assigned to the tag reader when the antenna ID registration means for registering an antenna ID for identifying itself and the antenna ID registered in the antenna ID registration means match the received antenna ID. Whether or not to transmit a lighting command to the lighting device assigned to the tag reader when there is no reception of the antenna ID registered in the antenna ID registration means for a first time or more The lighting system according to claim 1, further comprising a notification unit. The lighting equipment according to claim wherein said received existence notifications lit illumination upon receiving a lighting instruction from the unit, characterized in that it turns off the illumination if no lighting command after receiving off command within a fourth time 5. The illumination system according to 4 .

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