JP2020068440A - Communication system, lighting control system, wireless device, computer program, and communication method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication system, a lighting control system, a radio, a computer program and a communication method capable of reducing the influence of communication failure. Each time a one slave unit receives control information, the received flag area, the stored flag area, and the received flag of the one slave unit are subjected to a logical sum operation for each slave unit to perform a logical sum operation to perform a flag area. The transmission unit of the one slave unit is provided with an update unit for updating the above, a determination unit for determining the transmission time of the one slave unit based on the received transmission order and the transmission order of the one slave unit. The control information including the updated flag area is transmitted, and the master unit determines whether or not a plurality of slave units have received a predetermined control command based on the received flag for each slave unit in the received flag area. It is provided with a determination unit to be used. [Selection diagram] Fig. 1

Description

  The present invention relates to a communication system, a lighting control system, a wireless device, a computer program, and a communication method.

  In a transmission line having a main transmission line and a plurality of parallel branch transmission lines, a master station (master unit) provided in the main transmission line and a slave station (slave unit) provided in each branch transmission line A communication system that performs 1: 1 communication between them is disclosed (see Patent Document 1).

JP, 2008-199291, A

  By wirelessly connecting the master and slave units, it is possible to reduce restrictions on the number of slave units to be installed, the range of slave units to be installed, and the need to install a transmission line. Become. However, in wireless communication, communication may become unstable and communication failure may occur depending on environmental changes, as compared with wired communication.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a communication system, a lighting control system, a wireless device, a computer program, and a communication method capable of reducing the influence of communication failure.

  A communication system according to the present invention includes a plurality of wireless devices including a master device and a plurality of slave devices, and one arbitrary wireless device is a communication system capable of transmitting the same information to all other wireless devices. Each of the wireless devices includes a predetermined control command, a flag area in which an identifier and transmission order of the wireless device and a received flag indicating that the predetermined control command has been received can be recorded for each slave device. The slave unit includes a transmitter that transmits control information, and one slave unit receives the control information transmitted by the master unit or another slave unit, a storage unit that stores a flag area, and a control unit that controls the receiver unit. Each time information is received, the received flag area, the flag area stored in the storage unit, and the received flag indicating that the one slave has received the predetermined control command are logically ORed for each slave. The flag that has been stored and stored in the storage unit An updating unit that updates the rear, and a determining unit that determines a transmission time point of the one slave unit based on a transmission order received by the receiving unit and a preset transmission order of the one slave unit, The transmission unit of the one slave unit includes a control including the predetermined control command, the identifier and transmission order of the one slave unit, and the flag area updated by the updating unit at the transmission time determined by the determination unit. The parent device transmits the information, and the parent device receives the control information transmitted by the plurality of child devices, and the plurality of the child devices based on the received flag of each child device in the flag area received by the receiving unit. And a determination unit that determines whether or not the slave unit has received the predetermined control command.

  A lighting control system according to the present invention includes the communication system according to the present invention.

  A radio device according to the present invention includes a predetermined control command, a unique identifier and a transmission order, and a flag area in which a received flag indicating that the predetermined control command has been received can be recorded for each of a plurality of radio devices. A transmitter that transmits control information, a receiver that receives control information transmitted by another radio, a storage unit that stores a flag area, and a flag area that is received each time control information is received by the receiver, A flag area stored in the storage unit and a received flag indicating that the predetermined control command has been received, an updating unit that performs a logical sum operation for each radio to update the flag area stored in the storage unit, A determination unit that determines a transmission time point based on a transmission order received by the reception unit and a preset transmission order, and the transmission unit determines the predetermined control instruction at the transmission time point determined by the determination unit. When, transmits control information including the flag area updated in the identifier and sending order and the update unit.

  A computer program according to the present invention is a flag area in which a predetermined control command, a unique identifier and a transmission order, and a received flag indicating that the predetermined control command has been received can be recorded in a computer for each of a plurality of radio devices. And a process of receiving control information transmitted by another wireless device, a flag area received every time the control information is received, a flag area stored in a storage unit, and the predetermined control. Based on the received flag indicating that the command has been received, a process of performing a logical sum operation for each radio to update the flag area stored in the storage unit, and the received transmission order and the preset transmission order. A process for determining a transmission time point, and a control information including the predetermined control command, the identifier, the transmission order, and the updated flag area at the determined transmission time point. To execute a process of transmitting.

  A communication method according to the present invention includes a plurality of wireless devices including a master device and a plurality of slave devices, and any one wireless device performs communication by a communication system capable of transmitting the same information to all other wireless devices. In the method, each of the wireless devices is capable of recording a predetermined control command, an identifier and a transmission order of the wireless device, and a received flag indicating that the predetermined control command has been received for each slave device. The transmitting unit transmits the control information including and the one child device receives the control information transmitted by the parent device or another child device by the receiving unit, stores the flag area in the storage unit, and stores the control information. Each time a reception is performed, the received flag area, the flag area stored in the storage unit, and the received flag indicating that the one slave has received the predetermined control command are logically ORed for each slave. Update the flag area stored in the storage unit Is updated, the deciding unit decides the transmission time point of the one child device based on the received transmission order and the transmission order of the one child device set in advance, and the one child device decides the transmission order. At the time point, the transmission unit transmits control information including the predetermined control command, the identifier and transmission order of the one child device, and the flag area updated by the updating unit, and the master device includes the plurality of The receiving unit receives the control information transmitted by the slave unit, and determines whether or not the plurality of slave units have received the predetermined control command, based on the received flag for each slave unit within the received flag area. Department determines.

  According to the present invention, the influence of communication failure can be reduced.

It is a block diagram showing an example of composition of a lighting control system of this embodiment. It is a block diagram which shows an example of a structure of the main | base station of this Embodiment. It is a block diagram showing an example of composition of a cordless handset of this embodiment. It is a schematic diagram which shows an example of the communication method of the communication system of this Embodiment. It is explanatory drawing which shows an example of the format of the control information used with the communication system of this Embodiment. It is a schematic diagram which shows the 1st example of control and monitoring by the communication system of this Embodiment. It is a schematic diagram which shows an example of the frequency | count of communication of a communication system as a comparative example. It is a schematic diagram which shows an example of the number of times of communication of the communication system of this Embodiment. It is a schematic diagram which shows the 2nd example of control and monitoring by the communication system of this Embodiment. It is a schematic diagram which shows the 3rd example of control and monitoring by the communication system of this Embodiment. It is a schematic diagram which shows an example of the communication state of the communication system of this Embodiment. It is a schematic diagram which shows an example of setting of the transmission order of the communication system as a comparative example. It is a schematic diagram which shows an example of setting of the transmission order of the communication system of this Embodiment. It is a flow chart which shows an example of the processing procedure by the cordless handset of this embodiment. It is a flow chart which shows an example of the processing procedure by the parent machine of this embodiment.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an example of the configuration of the lighting control system of the present embodiment. The lighting control system of the present embodiment includes a blinking light relay device 110 as a lighting control device, a plurality of blinking lights 120, and the like. The lighting control system may also include the higher-level device 100. The host device 100 may be referred to as a lighting control device, but in this specification, the blinking light relay device 110 will be described as a lighting control device. In addition, in the example of FIG. 1, one flashing light relay device 110 is provided (one system), but a plurality of flashing light relay devices 110 (multiple systems) may be provided.

  The flashing light relay device 110 includes the interface unit 41, the master device 10, and the like. The interface unit 41 has an interface function with the host device 100. An optical line can be used between the host device 100 and the blinking light relay device 110, for example. The flashing light relay device 110 transmits a predetermined control command to each flashing light 120 via the master device 10 to control the lighting of each flashing light 120.

  The blinking lamp 120 includes the slave device 20, a drive unit 31, a display unit 32, and the like. The flashing lights 120 are installed at required intervals along the road, for example, and perform a predetermined display. Between the flashing light relay device 110 and each flashing light 120, and between each flashing light 120, that is, between the master device 10 and each slave device 20, and between each slave device 20, for example, a 920 MHz band is used. Wireless communication can be performed. The frequency band for wireless communication is not limited to 920 MHz. The master device 10 and the slave device 20 are also referred to as wireless devices.

  The display unit 32 includes, for example, LEDs of three colors (red, green, and blue), and can perform various types of lighting display according to the drive signal output from the drive unit 31. The display system includes, for example, constant lighting, blinking lighting, alternate lighting, or flow display (flow display speed may be about 20 km / h to 120 km / h, although it depends on the installation interval of the flashing lights).

  The drive unit 31 generates a drive signal based on the control command output by the slave device 20, and outputs the generated drive signal to the display unit 32.

  FIG. 2 is a block diagram showing an example of the configuration of base unit 10 of the present embodiment. The parent device 10 includes a control unit 11, a communication unit 12, a storage unit 13, a calculation unit 14, a determination unit 15, and the like that control the entire parent device 10.

  The communication unit 12 has a function as a transmission unit and a reception unit, and performs communication with each slave device 20. The communication unit 12 can transmit the control information to all the slaves 20 all at once (simultaneously). In addition, the communication unit 12 receives the control information transmitted by each child device 20. The communication unit 12 can include a transmission buffer and a reception buffer. Details of the control information will be described later.

  The storage unit 13 stores predetermined information. More specifically, the storage unit 13 controls the identification ID for identifying the master device 10 (transmitting station ID when transmitting control information), the transmission order of control information (usually 0), and the control of each slave device 20. A flag area in which a reception completion flag indicating that information (predetermined control command) has been received can be recorded for each child device, a predetermined control command, and the like are stored.

  The calculation unit 14 performs a logical sum operation on the received flag in the flag area received from the slave 20, for each slave. Details of the arithmetic processing by the arithmetic unit 14 will be described later.

  The determination unit 15 determines whether or not each slave device 20 has received a predetermined control command based on the reception completion flag for each slave device within the flag area extracted from the control information received by the communication unit 12. Details of the determination processing by the determination unit 15 will be described later.

  FIG. 3 is a block diagram showing an example of the configuration of the child device 20 of the present embodiment. The child device 20 includes a control unit 21, a communication unit 22, a storage unit 23, an updating unit 24, a determining unit 25, a setting unit 26, and the like that control the entire child device 20.

  The communication unit 22 has a function as a transmission unit and a reception unit, and performs communication with the master device 10 and another slave device 20. The communication unit 22 can transmit the control information to the master device 10 and the other slave devices 20 all at once (simultaneously). In addition, the communication unit 22 receives the control information transmitted by the parent device 10 and the other child device 20. The communication unit 22 can include a transmission buffer and a reception buffer.

  The storage unit 23 includes an identification ID (transmission station ID when transmitting control information) that identifies the slave 20 (self), a transmission order when the slave 20 (self) transmits control information, each slave 20. Stores a received flag indicating that control information (predetermined control command) has been received by each slave unit, a predetermined control command, and the like.

  Each time the update unit 24 receives the control information by the communication unit 22, the flag area extracted from the received control information, the flag area stored in the storage unit 23, and the slave unit 20 (self) have received a predetermined control command. The received flag indicating is subjected to a logical sum operation for each child device to update the flag area stored in the storage unit 23. Details of the update processing by the update unit 24 will be described later.

  The determination unit 25 determines the transmission time point at which the slave device 20 (self) transmits the control information, based on the transmission order extracted from the control information received by the communication unit 22 and the transmission order of the slave device 20 (self).

  The setting unit 26 sets the transmission order in which the slave device 20 (self) transmits the control information.

  FIG. 4 is a schematic diagram showing an example of a communication method of the communication system according to the present embodiment. In FIG. 4, for convenience, it is assumed that the communication system is composed of the master device 10 and three slave devices 20a, 20b, 20c. The slave units 20a, 20b, and 20c are referred to as slave unit 1, slave unit 2, and slave unit 3, and the transmission order of the slave units 1, 2, and 3 is 1, 2, and 3. Since the parent device 10 first transmits the control information, the transmission order is set to 0. Further, the transmission interval of the wireless device (the master device 10 and the slave devices 20a, 20b, 20c) is set to T (for example, 100 ms). Note that the number of slave units 20 is not limited to three, and depending on the number of blinking lights installed for one blinking light relay device (one system), for example, 50 or 100 units. And so on.

  First, the master device 10 transmits the control information to all the slave devices simultaneously (simultaneously) (reference A). Each child device 1 to 3 receives the control information. Each of the child devices 1 to 3 receives the control information transmitted by the parent device 10, and determines its own transmission order based on the transmission order (parent device: 0) extracted from the received control information. In the example of FIG. 4, since the handset 1 has the transmission order 1 (the order next to the handset), the handset 1 sends the control information to the handset 10 when the time T elapses from the time when the handset 10 transmits. And other slave units 2 and 3 (reference B). Hereinafter, similarly, when the time T has elapsed, the child device 2 transmits control information to the parent device 10 and the other child devices 1 and 3 (reference numeral C), and when the time T has further elapsed, the child device 3 transmits control information to the master device 10 and the other slave devices 1 and 2 (reference numeral D).

  FIG. 5 is an explanatory diagram showing an example of a format of control information used in the communication system of the present embodiment. The control information is composed of header, flag area, and control statement fields. For convenience, the number of slave units is three. The header includes a transmitting station ID that transmitted the control information (identification ID of the master device 10 or the slave device 20), a transmission order of the master device 10 or the slave device 20 that transmitted the control information, and the like.

  The flag area can be, for example, an N-bit data area when the number of slave units is N, and the reception flag recorded in the flag area is, for example, 1 (received flag) or 0 (unreceived flag). ) Can be. In the example of FIG. 5, since there are three slave units 20, a 1-bit area is allocated to each of the slave unit 1, the slave unit 2, and the slave unit 3.

  A predetermined control command is stored in the control statement. The predetermined control command is, for example, a command for controlling the blinking lamp 120 so as to be constantly lit, blinking lit, alternate lit, or flow-displayed, for example.

  As shown in FIG. 5, the control information includes a control command for controlling each blinking lamp 120, and a reception flag (monitoring) indicating whether each blinking lamp 120 (slave unit 20) has received the control instruction. Both informations are included.

  When the master unit and a plurality of slave units perform 1: 1 communication, assuming that the number of slave units is N, communication (control command transmission) and monitoring (reception confirmation) are combined in 2 × N communication. The number of times is required. When the time required for one communication is T, the communication time with all the slaves is 2 × N × T. Note that communication failure such as reception failure is not taken into consideration.

  On the other hand, in the communication system according to the present embodiment, as shown in FIG. 4, since the control information is transmitted from the master device 10 to all the slave devices 20 in one transmission, the time required for control is T. Become. Note that communication failure such as reception failure is not taken into consideration. That is, the time required for all the slaves 20 to acquire the control command can be significantly shortened. Also, the time required to confirm (monitor) whether each slave has received the control command is N × T, where N is the number of slaves, and the communication time with all slaves is (1 + N) × T. Becomes That is, the communication time as a whole of control and monitoring can be significantly shortened.

  Next, the operation of the communication system of the present embodiment will be described.

  FIG. 6 is a schematic diagram showing a first example of control and monitoring by the communication system of the present embodiment. In the example of FIG. 6, for convenience, the number of slave units 20 is three. Further, the transmission order of the control information is set to the master unit 0, the slave unit 1, the slave unit 3, and the slave unit 2. The transmission message illustrates the header and the flag area. The control command is omitted because it has the same content. Further, in the present specification, control means that the master device 10 transmits control information (control command) to each slave device 20 to control the flashing lamp 120, and monitoring means that the master device 10 controls the slave device 20. It means to confirm that the machine 20 has received the control information (control command).

  At time t0, the master device 0 transmits a transmission message to the slave devices 1, 2, and 3. The cordless handsets 1 to 3 receive the transmission message. The transmission message transmitted by the base unit 0 includes a transmission station ID of the base unit: 0, a transmission order: 0, a flag area [0, 0, 0] (reception flags of the handset units 1 to 3, 0, 0, 0 (initial Value)).

  When the mobile device 1 receives the transmission message, the update unit 24 of the mobile device 1 receives the flag area [0, 0, 0] and the flag area [0, 0, 0] stored in the storage unit 23 (initial Value) and a received flag [1] indicating that the handset 1 has received a control command, a flag stored in a flag area [1, 0, 0] obtained by performing an OR operation for each handset. Update the area.

  When the mobile device 2 receives the transmission message, the updating unit 24 of the mobile device 2 receives the flag area [0, 0, 0] and the flag area [0, 0, 0] stored in the storage unit 23 (initial Value) and a received flag [1] indicating that the handset 2 has received a control command, a flag stored in a flag area [0, 1, 0] obtained by performing an OR operation for each handset. Update the area.

  When the mobile device 3 receives the transmission message, the updating unit 24 of the mobile device 3 receives the flag area [0, 0, 0] and the flag area [0, 0, 0] stored in the storage unit 23 (initial Value) and a received flag [1] indicating that the handset 2 has received the control command, a flag stored in a flag area [0, 0, 1] obtained by performing an OR operation for each handset. Update the area.

  Next, at time t1 (for example, when time T has elapsed from time t0), handset 1 having a transmission order next to base unit 0 transmits a transmission message to base unit 0 and other handset units 2 and 3. . The master device 0 and the slave devices 2 and 3 receive the transmission message. The transmission message transmitted by the child device 1 includes the transmitting station ID of the child device 1, the transmission order: 1, and the flag area [1, 0, 0].

  When the mobile device 2 receives the transmission message, the updating unit 24 of the mobile device 2 receives the flag area [1, 0, 0] and the flag area [0, 1, 0] stored in the storage unit 23, The flag area [1, 1, 0] obtained by performing the logical sum operation for each slave unit with the received flag [1] indicating that the slave unit 2 has received the control command is updated. .

  When the slave 3 receives the transmission message, the updating unit 24 of the slave 3 receives the flag area [1, 0, 0] and the flag area [0, 0, 1] stored in the storage unit 23. The flag area [1, 0, 1] obtained by performing the logical sum operation for each slave unit with the received flag [1] indicating that the slave unit 3 has received the control command is updated. .

  Next, at a time point t2 (for example, when a time T has elapsed from the time point t1), the handset 3 whose transmission order is next to the handset 1 transmits a transmission message to the base unit 0 and the other handset 1 and 2. . The base unit 0 and the handset units 1 and 2 receive the transmission message. The transmission message transmitted by the handset 3 has the transmitting station ID of the handset 3, ID: 3, transmission order: 2, and flag area [1, 0, 1].

  When the slave 1 receives the transmission message, the updating unit 24 of the slave 1 receives the flag area [1, 0, 1] and the flag area [1, 0, 0] stored in the storage unit 23, The flag area [1, 0, 1] obtained by performing the logical sum operation for each slave unit with the received flag [1] indicating that the slave unit 1 has received the control command is updated. .

  When the mobile device 2 receives the transmission message, the updating unit 24 of the mobile device 2 receives the flag area [1, 0, 1] and the flag area [1, 1, 0] stored in the storage unit 23, The flag area [1, 1, 1] obtained by performing a logical sum operation for each slave with the received flag [1] indicating that the slave 2 has received the control command is updated. .

  Next, at a time point t3 (for example, when a time T has elapsed from the time point t2), the child device 2 having a transmission order next to the child device 3 transmits a transmission message to the parent device 0 and the other child devices 1 and 3. . The master device 0 and the slave devices 1 and 3 receive the transmission message. The transmission message transmitted by the child device 2 has the transmitting station ID of the child device 2, the transmission order: 3, and the flag area [1, 1, 1].

  The master device 0 receives the transmission message transmitted by the slave device 2. Since the received flag area is [1, 1, 1], the determination unit 15 of the master device 0 can determine that all the slave devices 1 to 3 have received the transmission message (control command). Can (can monitor).

  As described above, according to the communication system of the present embodiment, assuming that the number of slave units 20 is N (N = 3 in the example of FIG. 6), each slave unit 20 receives control information up to N times. Therefore, even if the communication becomes unstable due to the environmental change, the success rate of receiving the control command is increased and the influence of the communication failure can be reduced. Further, since the master device 10 can receive the flag area in which the received flag indicating that the predetermined control command has been received is recorded from each slave device 20 up to N times, the reception of the control command has succeeded. Can be surely grasped.

  FIG. 7 is a schematic diagram showing an example of the number of times of communication in a communication system as a comparative example. For convenience, it is assumed that the communication system is composed of the master unit 0 and four slave units 1 to 4. The communication system of FIG. 7 adopts the 1: 1 communication method. Further, it is assumed that the relay by the slave 2 or the slave 4 is required between the master 0 and the slave 3. The master unit 0 needs to communicate with the slave unit 1 twice, that is, control (transmission of a command) and monitoring (confirmation of reception). Similarly, communication between the master unit 0, the slave unit 2, and the slave unit 4 requires two communications, that is, control and monitoring. Further, since the slave unit 2 relays between the master unit 0 and the slave unit 3, communication between the master unit 0 and the slave unit 3 requires four times of control and monitoring. That is, in order for the master device 0 to communicate with all the slave devices 1 to 4, it is necessary to perform communication 5 times for control, 5 times for monitoring, and 10 times in total.

  FIG. 8 is a schematic diagram showing an example of the number of times of communication in the communication system according to the present embodiment. It is assumed that a relay by the slave unit 2 or the slave unit 4 is required between the master unit 0 and the slave unit 3. The master unit 0 can control the slave units 1, 2, and 4 simultaneously (simultaneously). Further, since it is transmitted to the child device 3 at the time of transmission of the child device 2, the parent device 0 can control all the child devices 1 to 4 by one communication. Further, since the master device 0 needs to confirm the reception from each of the slave devices 1 to 4, the communication required for monitoring is four times. That is, in order for the master unit 0 to communicate with all the slave units 1 to 4, the control can be reduced to once, the monitoring can be performed four times, and the communication can be reduced to five times in total.

  As described above, according to the communication system of the present embodiment, it is possible to significantly reduce the time required for all the slave units to acquire the control command, and the monitoring response time (in the example of FIG. 8, monitoring is performed four times). ) Can be shortened, and the communication time with all the slaves 20 (flashing lights 120) can be significantly shortened as a whole.

  FIG. 9 is a schematic diagram showing a second example of control and monitoring by the communication system of this embodiment. The difference from the first example shown in FIG. 6 is that it is assumed that the slave units 1, 2, and 3 cannot receive the transmission message due to the influence of environmental changes and the like.

  At time t0, the master device 0 transmits a transmission message to the slave devices 1, 2, and 3. The cordless handsets 1, 2, and 3 receive the transmission message. The transmission message transmitted by the base unit 0 includes a transmission station ID of the base unit: 0, a transmission order: 0, a flag area [0, 0, 0] (reception flags of the handset units 1 to 3, 0, 0, 0 (initial Value)).

  When the mobile device 1 receives the transmission message, the update unit 24 of the mobile device 1 receives the flag area [0, 0, 0] and the flag area [0, 0, 0] stored in the storage unit 23 (initial Value) and a received flag [1] indicating that the handset 1 has received a control command, a flag stored in a flag area [1, 0, 0] obtained by performing an OR operation for each handset. Update the area.

  When the mobile device 2 receives the transmission message, the updating unit 24 of the mobile device 2 receives the flag area [0, 0, 0] and the flag area [0, 0, 0] stored in the storage unit 23 (initial Value) and a received flag [1] indicating that the handset 2 has received a control command, a flag stored in a flag area [0, 1, 0] obtained by performing an OR operation for each handset. Update the area.

  When the mobile device 3 receives the transmission message, the updating unit 24 of the mobile device 3 receives the flag area [0, 0, 0] and the flag area [0, 0, 0] stored in the storage unit 23 (initial Value) and a received flag [1] indicating that the handset 3 has received the control command, a flag stored in a flag area [0, 0, 1] obtained by performing an OR operation for each handset. Update the area.

  Next, at time t1 (for example, when time T has elapsed from time t0), handset 1 having a transmission order next to base unit 0 transmits a transmission message to base unit 0 and other handset units 2 and 3. . It is assumed that the slave unit 2 receives the transmission message, but the master unit 0 and the slave unit 3 cannot receive the transmission message. The transmission message transmitted by the child device 1 includes the transmitting station ID of the child device 1, the transmission order: 1, and the flag area [1, 0, 0].

  When the mobile device 2 receives the transmission message, the update unit 24 of the mobile device 2 receives the flag area [1, 0, 0] and the flag area [0, 0, 0] stored in the storage unit 23 (initial Value) and a received flag [1] indicating that the handset 2 has received the control command, a flag stored in a flag area [1, 1, 0] obtained by performing an OR operation for each handset. Update the area.

  Next, at time t2 (for example, when time T has elapsed from time t1), the child device 3 having the second transmission order from the parent device 0 transmits the transmission message to the parent device 0 and the other child devices 1 and 2. To do. It is assumed that the master device 0 receives the transmission message but the slave devices 1 and 2 cannot receive the transmission message. The transmission message transmitted by the child device 3 has the transmitting station ID of the child device 3, the transmission order: 2, and the flag area [0, 0, 1].

  Next, at time t3 (for example, when time T has elapsed from time t2), the child device 2 having the third transmission order from the parent device 0 transmits the transmission message to the parent device 0 and the other child devices 1 and 3. To do. It is assumed that the master device 0 receives the transmission message but the slave devices 1 and 3 cannot receive the transmission message. The transmission message transmitted by the handset 2 has the transmission station ID of the handset 2, ID: 2, transmission order: 3, and flag area [1, 1, 0].

  The base unit 0 cannot receive the transmission message transmitted by the handset unit 1. However, the master device 0 can receive the transmission message transmitted by some slave devices (slave devices 2 and 3 in the example of FIG. 9) of all the slave devices.

  The arithmetic unit 14 of the parent device 10 performs a logical sum operation on the received flags in the flag areas received from some of the child devices of the plurality of child devices for each of the some child devices. In the example of FIG. 9, the flag area [0, 0, 1] received from the handset 3 and the flag area [1, 1, 0] received from the handset 2 are ORed for each handset. , Flag area [1, 1, 1] can be obtained.

  The determination unit 15 of the parent device 10 determines that the plurality of child devices have received the predetermined control command when there is a received flag corresponding to each of the plurality of child devices according to the calculation result of the calculation unit 14. In the example of FIG. 9, since the flag area [1, 1, 1] can be obtained as a result of the OR operation, the determination unit 15 determines that all the slave units have received the predetermined control command. You can

  As described above, according to the communication system of the present embodiment, each slave device simultaneously transmits the control command and the reception flag indicating the success or failure of the reception of the control command of the other slave device. Even if the mobile device 0 cannot receive the flag area transmitted by the mobile device 1, the reception confirmation of each of the mobile devices 1 to 3 can be collected based on the flag area transmitted by the mobile devices 2 and 3. it can.

  FIG. 10 is a schematic diagram showing a third example of control and monitoring by the communication system of this embodiment. The difference from the first example shown in FIG. 6 is that it is assumed that the handset 2 cannot receive the transmission message due to the influence of environmental changes and the like.

  At time t0, the master device 0 transmits a transmission message to the slave devices 1, 2, and 3. The cordless handsets 1 and 3 receive the transmission message. It is assumed that the handset 2 is not able to receive the transmission message. The transmission message transmitted by the base unit 0 includes a transmission station ID of the base unit: 0, a transmission order: 0, a flag area [0, 0, 0] (reception flags of the handset units 1 to 3, 0, 0, 0 (initial Value)).

  When the mobile device 1 receives the transmission message, the update unit 24 of the mobile device 1 receives the flag area [0, 0, 0] and the flag area [0, 0, 0] stored in the storage unit 23 (initial Value) and a received flag [1] indicating that the handset 1 has received a control command, a flag stored in a flag area [1, 0, 0] obtained by performing an OR operation for each handset. Update the area.

  When the mobile device 3 receives the transmission message, the updating unit 24 of the mobile device 3 receives the flag area [0, 0, 0] and the flag area [0, 0, 0] stored in the storage unit 23 (initial Value) and a received flag [1] indicating that the handset 3 has received the control command, a flag stored in a flag area [0, 0, 1] obtained by performing an OR operation for each handset. Update the area.

  Next, at time t1 (for example, when time T has elapsed from time t0), handset 1 having a transmission order next to base unit 0 transmits a transmission message to base unit 0 and other handset units 2 and 3. . The base unit 0 and the handset unit 3 receive the transmission message. It is assumed that the handset 2 is not able to receive the transmission message. The transmission message transmitted by the child device 1 includes the transmitting station ID of the child device 1, the transmission order: 1, and the flag area [1, 0, 0].

  When the slave 3 receives the transmission message, the updating unit 24 of the slave 3 receives the flag area [1, 0, 0] and the flag area [0, 0, 1] stored in the storage unit 23. The flag area [1, 0, 1] obtained by performing the logical sum operation for each slave unit with the received flag [1] indicating that the slave unit 3 has received the control command is updated. .

  Next, at a time point t2 (for example, when a time T has elapsed from the time point t1), the handset 3 whose transmission order is next to the handset 1 transmits a transmission message to the base unit 0 and the other handset 1 and 2. . The master unit 0 and the slave unit 1 receive the transmission message. It is assumed that the handset 2 is not able to receive the transmission message. The transmission message transmitted by the handset 3 has the transmitting station ID of the handset 3, ID: 3, transmission order: 2, and flag area [1, 0, 1].

  When the slave 1 receives the transmission message, the updating unit 24 of the slave 1 receives the flag area [1, 0, 1] and the flag area [1, 0, 0] stored in the storage unit 23, The flag area [1, 0, 1] obtained by performing the logical sum operation for each slave unit with the received flag [1] indicating that the slave unit 1 has received the control command is updated. .

  Next, at time t3 (for example, when time T has elapsed from time t2), it is the order in which the mobile device 2 having the transmission order next to the mobile device 3 transmits the transmission message, but at the time t0. Since the transmission message has not been received at t2, the transmission message cannot be transmitted.

  The determination unit 15 of the parent device 0 determines whether or not the plurality of child devices have received a predetermined control command after the transmission time points of the plurality of child devices have passed. For example, assuming that the transmission interval of the wireless device is T and the number of slave devices is N, the transmission time of the plurality of slave devices can be the time when N × T has elapsed from the time when the master device transmitted. In the example of FIG. 10, since the number of slave units is four, the determination unit 15 of the master unit 0 determines whether all the slave units have received the predetermined control command when 4 × T has elapsed from the time t0. To determine.

  Since each slave unit transmits a control command at the same time as transmitting a reception flag indicating success or failure of reception of control commands of other slave units, for example, as compared with the case of 1: 1 communication, reception of a plurality of slave units is performed. Confirmation can be shortened.

  Since the master unit 0 has the received flag area [1, 0, 1], the determination unit 15 of the master unit 0 determines that the slave unit 2 of all the slave units 1 to 3 transmits the transmission message (control message). It is possible to determine that the (command) has not been received.

  As shown in FIG. 10, at the time point t5, the master device 0 transmits the transmission message to the slave devices 1, 2, and 3. The cordless handsets 1 to 3 receive the transmission message. In this case, the handset 2 can receive the transmission message. The transmission message transmitted by the master unit 0 has a transmission station ID of the master unit: 0, a transmission order: 0, and a flag area [1, 0, 1] (logical sum of flags received by time t3).

  When the mobile device 2 receives the transmission message, the updating unit 24 of the mobile device 2 receives the flag area [1, 0, 1] and the flag area [0, 0, 0] stored in the storage unit 23 (initial Value) and a received flag [1] indicating that the handset 2 has received the control command, a flag stored in a flag area [1, 1, 1] obtained by performing an OR operation for each handset. Update the area.

  As illustrated in FIG. 10, the handset 2 cannot receive the transmission message transmitted by the handset 1 at time t6. Moreover, the handset 2 cannot receive the transmission message transmitted by the handset 3 at time t7. However, since the handset 2 can receive the transmission message at the time t5 (because it can receive the transmission message even once), the handset 2 determines its own transmission time. You can

  The determination unit 25 of the child device 20 can set the transmission time point as follows, for example. Let T be the transmission interval of the wireless device. When the transmission order of one child device is 2, and the received transmission order is 1, the difference in transmission order is 1. Therefore, the transmission time of the child device is T from the time when the transmission order is received. It can be the time when it has elapsed. In addition, when the transmission order of one child device is 3, when the received transmission order is 1, the difference in transmission order is 2. Therefore, the transmission time of the child machine is from the time when the transmission order is received. It can be the time when 2 × T has elapsed.

  In the example of FIG. 10, the transmission order of the transmission message received by the mobile device 2 at time t5 is 0. On the other hand, the transmission order of the handset 2 is 3. Therefore, it is possible to determine that the transmission time point of the handset 2 is the time point t8, which is the time point when 3 × T has elapsed from the time point t5. As described above, if the slave can receive the transmission message (control information) even once, it can determine the transmission time of itself and can transmit the transmission message (control information) at the correct timing.

  At time t8, the slave 2 transmits the transmission message to the master 0 and the other slaves 1 and 3. The transmission message transmitted by the child device 2 has the transmitting station ID of the child device 2, the transmission order: 3, and the flag area [1, 1, 1].

  The master device 0 receives the transmission message transmitted by the slave device 2. Since the received flag area is [1, 1, 1], the determination unit 15 of the master device 0 can determine that all the slave devices 1 to 3 have received the transmission message (control command). Can (can monitor).

  FIG. 11 is a schematic diagram showing an example of the communication state of the communication system of this embodiment. For convenience, the number of slave units is set to six. It is assumed that the child devices 1 to 6 incorporated in the blinking lights 120 are installed at predetermined intervals. It is assumed that the master device 0 incorporated in the blinking light relay device 110 is installed at a position near the slave devices 3 and 4.

  At time point t0, master device 0 simultaneously transmits the control information. It is assumed that the cordless handsets 1 and 3 cannot receive the control information and the cordless handsets 2 and 4 to 6 can receive the control information due to radio wave conditions caused by environmental changes and the like. For convenience, the child device that has been able to receive the control information is surrounded by a broken line.

  Since the slave device 1 having the next transmission order of the master device 0 cannot receive the control information, it cannot transmit the control information.

  At time t1 (assuming that 2 × T time has elapsed from time t0), the mobile device 2, which is the transmission order, transmits the control information. It is assumed that the slaves 5 and 6 cannot receive the control information, and the slaves 1, 3 and 4 can receive the control information.

  At a time point t2 (a time point after a lapse of T time from the time point t1), the child device 3, which has the transmission order, transmits the control information. It is assumed that the slave unit 1 cannot receive the control information and the slave units 2, 4 to 6 can receive the control information.

  At time t3 (assuming that T time has elapsed from time t2), the child device 4, which is the transmission order, transmits the control information. It is assumed that the child device 2 cannot receive the control information and the child devices 1, 3, 5, and 6 can receive the control information.

  At time point t4 (assuming that a time T has elapsed from time point t3), the mobile device 5, which is the transmission order, transmits the control information. It is assumed that the slaves 1 and 3 cannot receive the control information, and the slaves 2, 4 and 6 can receive the control information.

  At time point t5 (assuming that a time T has elapsed from time point t4), the mobile device 6, which is the transmission order, transmits the control information. It is assumed that the slaves 1 and 2 cannot receive the control information, and the slaves 3 to 5 can receive the control information.

  In this case, the number of times the slave units 1 to 6 receive the control information is 2 times, 3 times, 3 times, 5 times, 4 times and 4 times in order.

  As described above, according to the communication system of the present embodiment, each slave is given the opportunity to receive the control information many times, so that even if the radio wave does not reach due to the environmental change, the control is controlled. Information can be reliably received.

  Next, the setting of the transmission order will be described.

  FIG. 12 is a schematic diagram showing an example of setting the transmission order of a communication system as a comparative example. For convenience, the number of slave units is set to six. It is assumed that the child devices 1 to 6 incorporated in the blinking lights 120 are installed at a predetermined interval L. It is assumed that the master unit 0 incorporated in the blinking light relay device 110 is installed at a point near the slave unit 1 (the distance from the slave unit 1 is L). It is assumed that the distance from the master unit 0 becomes longer in the order of the slave units 1, 2, 3, 4, 5, and 6. It is also assumed that the transmission order is set in the order of the slave units 1, 2, 3, 4, 5, and 6. In addition, the distance over which the radio wave transmitted by the wireless device reliably reaches is set to 3 × L for convenience. In addition, the distance that radio waves can actually reach is longer.

  It is assumed that when the master device 0 transmits the control information for the first time, the slave devices 1, 2, and 3 can surely receive the control information. When the slave 1 transmits the control information for the second time, the slaves 2, 3, and 4 can surely receive the control information. When the slave unit 2 transmits the control information for the third time, the slave units 3, 4, and 5 can reliably receive the control information. When the slave unit 3 transmits the control information for the fourth time, the slave units 4, 5, and 6 can reliably receive the control information.

  That is, four times of communication is required for the child device 6 installed at the farthest distance from the parent device 0 to reliably receive the control information.

  FIG. 13 is a schematic diagram showing an example of setting the transmission order of the communication system according to the present embodiment. In the first example shown in FIG. 12, the transmission order is set according to the installation order of the slaves, but in the second example, the transmission order is set by thinning out the required number of slaves. That is, as shown in FIG. 13, the transmission order of the handset 1 is 1, the handset 2 and 3 are thinned out, and the handset 4 has the transmission order 2. Similarly, the handset 5 is thinned out, and the handset 6 has the transmission rank 3. Next, in the direction of approaching the master unit 0, the slave unit 5 is thinned out and the slave unit 3 has the transmission rank 4. Next, in the direction away from the master unit 0, the transmission order of the slave unit 5 is 5, and in the direction further approaching the master unit 0, the slave unit 2 has the transmission order 6.

  The determination as to whether the distance is long or short can be made, for example, on the basis of the distance at which the radio wave from the base unit 0 reliably reaches.

  As shown in FIG. 13, when the master device 0 transmits the control information for the first time, the slave devices 1, 2, and 3 can reliably receive the control information. When the slave 1 transmits the control information for the second time, the slaves 2, 3, and 4 can surely receive the control information. When the slave unit 4 transmits the control information for the third time, the slave units 5 and 6 can reliably receive the control information.

  That is, the number of times of communication of three times is sufficient for the child device 6 installed at the farthest distance from the parent device 0 to reliably receive the control information. It can be seen that the number of communications is smaller than that in the case of FIG.

  If the distance between the parent device 10 and the child device 20 becomes long, there is a high possibility that communication failure will occur due to environmental changes. Therefore, by providing each slave unit 20 with the setting unit 26, it is possible to set the optimum transmission order with the slave unit 20 installed even when the environment changes.

  FIG. 14 is a flowchart showing an example of a processing procedure by the handset 20 of the present embodiment. Hereinafter, for convenience, the main body of processing will be described as the control unit 21. The control unit 21 determines whether or not it is the transmission timing of the control information (S11), and when it is the transmission timing (YES in S11), the transmission station ID, the transmission order, the updated flag area, and the control command are set. For example, the control information is stored in the transmission buffer (S12) and the control information is transmitted (S13). When it is not the transmission timing (NO in S11), the control unit 21 performs the process of step S14 described below.

  The control unit 21 determines whether the control information is received (S14), and when the control information is not received (NO in S14), the process of step S11 is continued.

  When the control information is received (YES in S14), the control unit 21 extracts the control command from the received control information (S15) and the flag area (S16). The control unit 21 determines whether or not it is a control command for the master unit (S17). When it is not the control command of the master unit (NO in S17), the control unit 21 sets the extracted flag area, the flag area stored in the storage unit 23, and its own reception flag (reception completion flag indicating that the control command has been received). An OR operation is performed to update the flag area stored in the storage unit 23 (S18), and the process of step S20 described below is performed.

  When it is the control command of the master unit (YES in S17), the control unit 21 performs an OR operation on the extracted flag area and its own reception flag (reception completed flag indicating that the control command has been received), and the storage unit The flag area stored in 23 is updated (S19).

  The control unit 21 extracts the transmission order from the received control information (S20), and determines the transmission time point of the control information based on the extracted transmission order and its own transmission order (S21). The control unit 21 determines whether to end the process (S22). Whether to end the process can be determined, for example, according to whether or not the power of the slave device 20 is turned off. When the processing is not to be ended (NO in S22), the control unit 21 continues the processing from step S11. When ending the process (YES in S22), the control unit 21 ends the process.

  FIG. 15 is a flowchart showing an example of a processing procedure performed by the parent device 10 according to the present embodiment. Hereinafter, for convenience, the main body of processing will be described as the control unit 11. The control unit 11 transmits the control information to all the slaves 20 (S31). The control unit 11 determines whether or not the control information is received (S32), and when the control information is not received (NO in S32), the process of step S32 is continued.

  When the control information is received (YES in S32), the control unit 11 extracts the flag area from the received control information (S33). The control unit 11 performs an OR operation on the extracted flag area and the flag area stored in the storage unit 23 to update the flag area stored in the storage unit 23 (S34).

  The control unit 11 determines whether or not a predetermined time has passed (S35). For example, when the number of slaves is N and the transmission interval of the wireless device is T, the time when the predetermined time has elapsed can be a time when N × T has elapsed from the time when the master device 10 transmitted the control information. .

  When the predetermined time has not elapsed (NO in S35), the control unit 11 continues the processing from step S32. When the predetermined time has elapsed (YES in S35), the control unit 11 ends the process.

  The lighting control system of the present embodiment includes a flashing light relay device 110 including the master device 10 and a plurality of flashing lights 120 including the slave device 20, and the flashing light relay device 110 is based on a predetermined control command. , Control a plurality of blinking lights 120. As a result, it is possible to realize a lighting control system in which the success rate of receiving the control command becomes extremely high and the influence of communication failure can be reduced.

  The communication system according to the present embodiment includes a plurality of wireless devices including a master device and a plurality of slave devices, and any one wireless device can transmit the same information to all other wireless devices. In each of the wireless devices, a predetermined control command, an identifier and a transmission order of the wireless device, and a flag area in which a received flag indicating that the predetermined control command has been received can be recorded for each slave device. And a receiver that receives the control information transmitted by the master or another slave, a storage that stores a flag area, and the receiver. Each time the control information is received at, the received flag area, the flag area stored in the storage unit, and the received flag indicating that the one slave has received the predetermined control command are logically ORed for each slave. Calculated and stored in the storage unit An updating unit that updates the lag area, and a determining unit that determines a transmission time point of the one child device based on a transmission order received by the receiving unit and a preset transmission order of the one child device, The transmission unit of the one slave unit includes a control including the predetermined control command, the identifier and transmission order of the one slave unit, and the flag area updated by the updating unit at the transmission time determined by the determination unit. The parent device transmits the information, and the parent device receives the control information transmitted by the plurality of child devices, and the plurality of the child devices based on the received flag of each child device in the flag area received by the receiving unit. And a determination unit that determines whether or not the slave unit has received the predetermined control command.

  The lighting control system according to the present embodiment includes the communication system according to the present embodiment.

  The wireless device according to the present embodiment has a predetermined control command, a unique identifier, a transmission order, and a flag area in which a received flag indicating that the predetermined control command has been received can be recorded for each of a plurality of wireless devices. And a receiving unit that receives the control information transmitted by another radio, a storage unit that stores a flag area, and a flag that is received each time the receiving unit receives the control information. An area, a flag area stored in the storage section, and an update section for updating the flag area stored in the storage section by performing a logical sum operation for each radio with respect to a received flag indicating that the predetermined control command has been received. And a determination unit that determines a transmission time point based on the transmission order received by the reception unit and a preset transmission order, and the transmission unit determines the predetermined time point at the transmission time point determined by the determination unit. And your command, the control information including a flag area updated in the identifier and sending order and the update unit transmits.

  The computer program according to the present embodiment can record a predetermined control command, a unique identifier, a transmission order, and a reception completion flag indicating that the predetermined control command has been received in each computer for each of a plurality of radio devices. A process of transmitting control information including a flag area, a process of receiving control information transmitted by another radio, a flag area received each time control information is received, a flag area stored in a storage unit, and the predetermined value. The received flag indicating that the control command has been received is processed to perform a logical sum operation for each radio to update the flag area stored in the storage unit, and to the received transmission order and the preset transmission order. Based on the above, a process of determining a transmission time point, the predetermined control command at the determined transmission time point, the identifier, the transmission order, and the updated flag area are included. To execute a process of transmitting control information.

  A communication method according to the present embodiment includes a plurality of wireless devices including a master device and a plurality of slave devices, and any one wireless device can transmit the same information to all other wireless devices. Each of the wireless devices can record a predetermined control command, an identifier and a transmission order of the wireless device, and a received flag indicating that the predetermined control command has been received, for each slave device. The transmitting unit transmits control information including a flag area, the one slave unit receives the control information transmitted by the master unit or another slave unit, and the storing unit stores the flag area in the storage unit. Each time information is received, the received flag area, the flag area stored in the storage unit, and the received flag indicating that the one slave has received the predetermined control command are logically ORed for each slave. Flag area that has been stored in the storage unit The determining unit determines the transmission time point of the one child device based on the transmission order received by the updating unit and the preset transmission order of the one child device, and the one child device determines At the time of transmission, the transmission unit transmits control information including the predetermined control command, the identifier and transmission order of the one child device, and the flag area updated by the updating unit, and the parent device, Whether or not the plurality of slave units have received the predetermined control command based on the received flag of each slave unit within the received flag area when the receiving unit receives the control information transmitted by the plurality of slave units. Is determined by the determination unit.

  Each of the wireless devices (the master device and the plurality of slave devices) can record a predetermined control command, an identifier and transmission order of the wireless device, and a received flag indicating that the predetermined control command has been received for each slave device. And a transmission unit for transmitting control information including the area. One radio transmits control information to all other radios. That is, the wireless device sequentially broadcasts to other wireless devices by time sharing.

  If the number of slave units is N, the flag area can be, for example, an N-bit data area, and the reception flag recorded in the flag area can be, for example, 1 (received flag) or 0 (unreceived flag). ) Can be.

  Any one of the plurality of slaves receives a control information transmitted by the master or another slave, a storage unit storing a flag area, and the control unit receiving the control information. Each time, the received flag area, the flag area stored in the storage unit and the received flag indicating that the one slave unit has received a predetermined control command are stored in the storage unit by performing an OR operation for each slave unit. An updating unit that updates the stored flag area and a determining unit that determines the transmission time point of the one slave unit based on the transmission order received by the receiving unit and the transmission order of the one slave unit set in advance. Prepare

  The number of slave units is, for example, three units, slave unit 1, slave unit 2, and slave unit 3. It is assumed that the flag area has 3 bits and the slave unit 1, the slave unit 2, and the slave unit 3 are allocated in this order from the beginning. When the handset 2 receives the flag area transmitted by the handset 1 (for example, [1, 0, 0]), if the flag area stored in the handset 2 is [0, 0, 0], the updating unit , The received flag area [1, 0, 0], the stored flag area [0, 0, 0], and the received flag [1] indicating that the slave unit 2 has received the control command, for each slave unit. The flag area stored in the flag area [1, 1, 0] obtained by performing the logical sum operation is updated. The updating by the updating unit is performed every time the flag area is received.

  The transmission time can be determined as follows, for example. Let T be the transmission interval of the wireless device. When the transmission order of one child device is 2, and the received transmission order is 1, the difference in the transmission orders is 1. Therefore, the transmission time of the child device is T after the time when the transmission order is received. It can be the point of time. Further, when the transmission order of one child device is 3, when the received transmission order is 1, the difference in transmission order is 2. Therefore, the transmission time of the child device is 2 from the time when the transmission order is received. It can be set to a time when only xT has elapsed.

  The transmission unit of the one child device transmits control information including a predetermined control command, the identifier and transmission order of the one child device, and the flag area updated by the updating unit at the time of transmission determined by the determination unit. To do.

  The master unit receives a control information transmitted by a plurality of slave units, and a plurality of slave units issue a predetermined control command based on the reception flag of each slave unit within the flag area received by the receiver. And a determination unit that determines whether or not the data has been received. The number of slave units is, for example, three units, slave unit 1, slave unit 2, and slave unit 3. It is assumed that the flag area has 3 bits and the slave unit 1, the slave unit 2, and the slave unit 3 are allocated in this order from the beginning. If the received flag area is, for example, [1, 1, 1], it can be determined that the plurality of slave units have received the predetermined control command.

  Assuming that the number of slave units is N, each slave unit can receive the control information up to N times. Therefore, even if the communication becomes unstable due to the environmental change, the success rate of receiving the control command is high. It is possible to prevent communication failure. Further, since the master unit can receive the flag area in which the received flag indicating that the predetermined control command has been received is recorded from each slave unit up to N times, it is ensured that the control command has been successfully received. Can be grasped.

  In the communication system according to the present embodiment, the master unit performs a logical sum operation on the received flags in the flag areas received from some slave units of the plurality of slave units for each of the slave units. The determining unit includes a performing unit, and the determining unit determines that the plurality of slave units have received the predetermined control command when there is a received flag corresponding to each of the plurality of slave units according to the calculation result of the calculating unit. judge.

  The master unit includes a calculation unit that performs a logical sum operation on the received flags in the flag areas received from some slave units of the plurality of slave units for each of the slave units. The number of slave units is, for example, three units, slave unit 1, slave unit 2, and slave unit 3. It is assumed that the flag area has 3 bits and the slave unit 1, the slave unit 2, and the slave unit 3 are allocated in this order from the beginning. For example, when the flag area received from the child device 1 is [1, 0, 0] and the flag area received from the child device 3 is [1, 0, 1], the received flag area is The flag area obtained by the logical sum operation for each child device is [1, 0, 1].

  The determination unit determines that the plurality of slave units have received the predetermined control command when there is a received flag corresponding to each of the plurality of slave units according to the calculation result of the calculation unit. For example, the number of slave units is, for example, slave unit 1, slave unit 2, and slave unit 3. It is assumed that the flag area has 3 bits and the slave unit 1, the slave unit 2, and the slave unit 3 are allocated in this order from the beginning. For example, when the flag area received from the handset 3 is [0, 0, 1] and the flag area received from the handset 2 is [1, 1, 0], the received flag area is The flag area obtained by performing the logical sum operation for each child device is [1, 1, 1].

  With the above-described configuration, since each slave unit can simultaneously transmit the control command and the reception flag indicating the success or failure of the reception of the control command of the other slave unit, the master unit transmits the slave unit 1 Even when the flag area cannot be received, it is possible to collect the reception confirmation of each slave unit based on the flag areas transmitted by the slave units 2 and 3.

  In the communication system according to the present embodiment, the determination unit determines that if the reception unit corresponding to at least one slave unit among the plurality of slave units does not have a received flag according to the calculation result of the calculation unit, the slave unit It is determined that the predetermined control command has not been received.

  The determination unit determines that the slave unit has not received the predetermined control command when there is no received flag corresponding to at least one slave unit among the plurality of slave units according to the calculation result of the calculation unit. In the above example, the flag area obtained by the logical sum operation is [1, 0, 1], and the reception flag of the handset 2 is [0], so the handset 2 cannot receive the control command. Can be determined.

  In the communication system according to the present embodiment, the determination unit causes the plurality of slave units to perform the predetermined control after the transmission time of the master unit and after the transmission time of the plurality of slave units has elapsed. It is determined whether a command has been received.

  The determination unit determines whether or not the plurality of slave units have received a predetermined control command after the transmission time of one control command of the master unit and after the transmission time of the plurality of slave units has elapsed. . For example, assuming that the transmission interval of the wireless device is T and the number of slave devices is N, the transmission time of the plurality of slave devices can be the time when N × T has elapsed from the time when the master device transmitted. Since each slave unit transmits a control command at the same time as transmitting a reception flag indicating success or failure of reception of control commands of other slave units, for example, as compared with the case of 1: 1 communication, reception of a plurality of slave units is performed. Confirmation can be shortened.

  In the communication system according to the present embodiment, each of the plurality of slave units includes a setting unit that sets the transmission order.

  Each of the plurality of slave units includes a setting unit that sets the transmission order. The longer the distance between the master unit and the slave unit, the higher the possibility of communication failure depending on the environmental change. Therefore, by providing the setting unit, it is possible to set the optimum transmission order in a state in which the child device is installed even when the environment changes.

  The lighting control system according to the present embodiment includes a lighting control device including the master unit, and a plurality of blinking lights including the slave unit, and the lighting control device, based on the predetermined control command, the Control multiple flashing lights.

  The lighting control device includes a master unit and a plurality of blinking lights including a slave unit, and the lighting control unit controls the plurality of blinking lights based on a predetermined control command. As a result, it is possible to realize a lighting control system in which the success rate of receiving the control command becomes extremely high and the influence of communication failure can be reduced.

10 parent unit 11 control unit 12 communication unit 13 storage unit 14 arithmetic unit 15 determination unit 20 slave unit 21 control unit 22 communication unit 23 storage unit 24 update unit 25 determination unit 26 setting unit 31 drive unit 32 display unit 41 interface unit 100 upper level Device 110 flashing light Relay device 120 flashing light

A communication system according to the present invention includes a plurality of wireless devices including a master device and a plurality of slave devices, and one arbitrary wireless device is a communication system capable of transmitting the same information to all other wireless devices. Each of the wireless devices includes a predetermined control command, a flag area in which an identifier and transmission order of the wireless device and a received flag indicating that the predetermined control command has been received can be recorded for each slave device. A control unit is provided with a transmission unit that transmits the control information to all wireless devices other than the wireless device without passing through a relay device , and one slave device controls the control information transmitted by the master device or another slave device. A receiving unit that receives, a storage unit that stores a flag area, and a received flag area, a flag area that is stored in the storage unit, and the one slave as the predetermined control each time control information is received by the receiving unit. Received message indicating that a command has been received An update unit that performs a logical sum operation for each slave unit to update the flag area stored in the storage unit, a transmission order received by the reception unit, and a preset transmission order of the one slave unit. Based on the transmission time of the one slave, the transmission unit of the one slave, at the transmission time determined by the determination unit, the predetermined control command, the one of the Control information including the identifier and transmission order of the slave unit and the flag area updated by the updating unit is transmitted to all the slave units other than the one slave unit and the master unit without passing through the relay unit. , The master unit receives the control information transmitted by the plurality of slave units, and the plurality of slave units based on the reception completion flag of each slave unit in the flag area received by the reception unit. And a determination unit that determines whether or not the predetermined control command is received.

A radio device according to the present invention includes a predetermined control command, a unique identifier and a transmission order, and a flag area in which a received flag indicating that the predetermined control command has been received can be recorded for each of a plurality of radio devices. Stores a transmitter that sends control information to all other wireless devices other than the wireless device itself without passing through a repeater , a receiver that receives control information sent by another wireless device, and a flag area. Each time a storage unit and the reception unit receives control information, a received flag area, a flag area stored in the storage unit, and a received flag indicating that the predetermined control command has been received are logically set for each radio device. An update unit that performs a sum operation to update the flag area stored in the storage unit, and a determination unit that determines a transmission time point based on the transmission order received by the reception unit and a preset transmission order, The above Shin unit is a transmission time determined by the determining unit, wherein the predetermined control command, the control information including a flag area updated in the identifier and sending order and the update unit, the self without going through the repeater Send to all radios other than the radio .

A computer program according to the present invention is a flag area in which a predetermined control command, a unique identifier and a transmission order, and a received flag indicating that the predetermined control command has been received can be recorded in a computer for each of a plurality of radio devices. Process for transmitting control information including and to all other wireless devices other than the own wireless device without passing through a relay device, process for receiving control information transmitted by another wireless device, and receiving control information Each time, the received flag area, the flag area stored in the storage unit, and the received flag indicating that the predetermined control command has been received are ORed for each radio device and stored in the storage unit. And a process of determining a transmission time point based on the received transmission order and a preset transmission order, the predetermined control command at the determined transmission time point, and Control information including a Besshi and transmission order and updated flag area, to execute a process of transmitting to all other radios except without its own radio going through the repeater.

A communication method according to the present invention includes a plurality of wireless devices including a master device and a plurality of slave devices, and any one wireless device performs communication by a communication system capable of transmitting the same information to all other wireless devices. In the method, each of the wireless devices is capable of recording a predetermined control command, an identifier and a transmission order of the wireless device, and a received flag indicating that the predetermined control command has been received for each slave device. The control unit including the control information transmitted to all other wireless devices other than the wireless device without passing through the relay device , and one slave device is a control device transmitted by the master device or another slave device. Each time the receiving unit receives the information, stores the flag area in the storage unit, and receives the control information, the received flag area, the flag area stored in the storage unit, and the one child device send the predetermined control command. The received flag indicating that it has been received The update unit updates the flag area stored in the storage unit by performing a logical sum operation on the received transmission order and the transmission order of the one handset based on the preset transmission order of the one handset. The deciding unit decides the time point, and the one slave unit includes the predetermined control command, the identifier and the transmission order of the one slave unit, and the flag area updated by the updating unit at the determined transmission time point. The control unit transmits the control information to all the slaves other than the one slave and the master without passing through a relay, and the master controls the slaves to transmit. The receiving unit receives the information, and the determining unit determines whether or not the plurality of slave units have received the predetermined control command based on the received flag of each slave unit within the received flag area.

A communication system according to the present invention includes a plurality of wireless devices including a master device and a plurality of slave devices, and one arbitrary wireless device is a communication system capable of transmitting the same information to all other wireless devices. Each of the wireless devices includes a predetermined control command, a flag area in which an identifier and transmission order of the wireless device and a received flag indicating that the predetermined control command has been received can be recorded for each slave device. A transmitter is provided for transmitting control information to all other wireless devices other than the wireless device without passing through a relay device, and one slave device is the flag transmitted by the master device or another slave device. a receiver for receiving control information including area, a storage unit for storing a flag area, before Symbol received flag recorded in the flag area stored in the storage unit, the one handset is a predetermined control command received flag and receive indicating that the received In the flag area, the reception unit receives the control information of the logical sum operation performed for each slave unit of the received flags indicating that the other slave unit has received the predetermined control command. An updating unit that updates the flag area stored in the storage unit based on a cumulative calculation result obtained by repeating each time, a transmission order received by the receiving unit, and the one preset slave unit Based on the transmission order of, the determination unit for determining the transmission time of the one slave, the transmission unit of the one slave, at the transmission time determined by the determination unit, with the predetermined control command. , The control information including the identifier and transmission order of the one child device and the flag area updated by the updating unit, all the other child devices other than the one child device and the parent without passing through a relay device. The master unit, Each time the serial plurality of slave unit transmits the control information, a receiver for receiving the control information transmitted for each slave unit flag area received by the receiving unit, the control information is received by the plurality of handset A determination unit that determines whether or not the plurality of slave units have received the predetermined control command, based on the received flag based on the accumulated operation result of the logical sum operation of the received flag performed each time With.

A radio device according to the present invention includes a predetermined control command, a unique identifier and a transmission order, and a flag area in which a received flag indicating that the predetermined control command has been received can be recorded for each of a plurality of radio devices. A transmitting unit that transmits control information to all other wireless devices other than the own wireless device without passing through a relay device, and a receiving unit that receives control information including the flag area, which is transmitted by another wireless device. a storage unit for storing a flag area, before Symbol received flag recorded in the flag area stored in the storage unit, included in the received flag and the flag area that has received indicating reception of the predetermined control command, By repeatedly performing the logical sum operation performed for each wireless device of each received flag indicating that the other wireless device has received the predetermined control command, each time the receiving unit receives the control information. An update unit for updating the flag area stored in the storage unit based on the obtained accumulated calculation results, based on the transmission order and preset sending order received by the receiving unit, determines a transmission time A determining unit, and the transmitting unit relays control information including the predetermined control command, the identifier and the transmission order, and the flag area updated by the updating unit at the transmission time determined by the determining unit. Transmit to all other radios other than the local radio without going through the radio.

A computer program according to the present invention is a flag area in which a predetermined control command, a unique identifier and a transmission order, and a received flag indicating that the predetermined control command has been received can be recorded in a computer for each of a plurality of radio devices. And a process of transmitting control information including the above to all other radio devices other than the own radio device without passing through a relay device, and a process of receiving control information including the flag area transmitted by the other radio device. If, serial received flag recorded in the flag area stored in 憶部, the included in a predetermined flag area received flag and receive indicating that it has received the control command, the other radios in the predetermined Received flag indicating that a control command has been received The logical sum operation performed for each radio device is repeated each time control information is received. A process of updating the flag area stored in the storage unit based on calculation results, based on the transmission order and preset sending order received, the processing for determining the transmission time, at the determined transmission time, the predetermined And the control information including the identifier, the transmission order, and the updated flag area are transmitted to all the wireless devices other than the own wireless device without passing through the relay device.

A communication method according to the present invention includes a plurality of wireless devices including a master device and a plurality of slave devices, and any one wireless device performs communication by a communication system capable of transmitting the same information to all other wireless devices. In the method, each of the wireless devices is capable of recording a predetermined control command, an identifier and a transmission order of the wireless device, and a received flag indicating that the predetermined control command has been received for each slave device. Control information including a, the transmission unit is transmitted to all other wireless devices other than the wireless device without passing through a relay device, one slave device is transmitted by the master device or another slave device , the received receiver control information includes a flag area, and stores a flag area in the storage unit, before Symbol received flag recorded in the flag area stored in the storage unit, the control the one of the slave unit is the predetermined received flag and receive indicating that it has received the command Each of the received flags indicating that the other slave unit has received the predetermined control command included in the flag area, the logical sum operation performed for each slave unit is repeated every time the control information is received. The updating unit updates the flag area stored in the storage unit based on the accumulated calculation result obtained by the above , based on the received transmission order and the preset transmission order of the one child device, The deciding unit decides the transmission time point of the one child device, and the one child device updates the predetermined control command, the identifier and the transmission order of the one child device, and the updating unit at the decided transmission time point. The control information including the flag area, the transmission unit transmits to all the other slaves other than the one slave and the master without passing through the relay, and the master is the plurality of slaves. each time the child machine to send control information, transmission Is received by the receiving unit to control information for each slave unit the received flag area, the accumulated operation of the logical OR operation of the received flag made each time the control information is received by the plurality of handset The determination unit determines whether or not the plurality of slave units have received the predetermined control command based on the received flag based on the result .

Claims (10)

A communication system including a plurality of wireless devices including a master device and a plurality of slave devices, wherein any one wireless device is a communication system capable of transmitting the same information to all other wireless devices,
Each of the radios
A transmitting unit for transmitting control information including a predetermined control command, an identifier and a transmission order of the wireless device, and a flag area capable of recording a reception completion flag indicating that the predetermined control command has been received for each slave device. Prepare,
One child machine
A receiving unit that receives the control information transmitted by the parent device or another child device,
A storage unit that stores a flag area,
Each time the receiving unit receives the control information, the received flag area, the flag area stored in the storage unit, and the received flag indicating that the one slave has received the predetermined control command are set for each slave. An updating unit that performs a logical sum operation on the storage unit to update the flag area stored in the storage unit;
A determining unit that determines a transmission time point of the one child device based on a transmission order received by the receiving unit and a preset transmission order of the one child device,
The transmitter of the one slave is
At the time of transmission determined by the determination unit, the control information including the predetermined control command, the identifier and transmission order of the one child device, and the flag area updated by the update unit is transmitted.
The main unit is
A receiver for receiving control information transmitted by the plurality of slaves,
A communication unit, comprising: a determination unit that determines whether or not the plurality of slave units have received the predetermined control command, based on a received flag for each slave unit within the flag area received by the reception unit. The main unit is
The reception flag in the flag area received from a part of the plurality of slave units, an arithmetic unit for performing an OR operation for each of the slave units,
The determination unit,
The communication system according to claim 1, wherein it is determined that the plurality of slave units have received the predetermined control command when there is a received flag corresponding to each of the plurality of slave units according to the calculation result of the calculation unit. The determination unit,
When there is no received flag corresponding to at least one of the plurality of slaves according to the calculation result of the calculation unit, it is determined that the slave does not receive the predetermined control command. The communication system according to 2. The determination unit,
The method according to claim 1, wherein it is determined whether or not the plurality of slave units have received the predetermined control command after the transmission time of the master unit and after the transmission time of the plurality of slave units has passed. Item 5. The communication system according to any one of items 3. Each of the plurality of slaves,
The communication system according to any one of claims 1 to 4, further comprising a setting unit that sets a transmission order.   A lighting control system comprising the communication system according to claim 1. A lighting control device including the master unit, and a plurality of blinking lights including the slave unit,
The lighting control device,
The lighting control system according to claim 6, wherein the plurality of blinking lights are controlled based on the predetermined control command. A transmission unit for transmitting control information including a predetermined control command, a unique identifier, a transmission order, and a flag area in which a received flag indicating that the predetermined control command has been received can be recorded for each of a plurality of wireless devices. ,
A receiver for receiving control information transmitted by another radio,
A storage unit that stores a flag area,
Each time the receiving unit receives the control information, the received flag area, the flag area stored in the storage unit, and the received flag indicating that the predetermined control command has been received are logically ORed for each radio device. And an updating unit for updating the flag area stored in the storage unit,
A determining unit that determines a transmission time point based on a transmission order received by the receiving unit and a preset transmission order,
The transmitter is
A wireless device that transmits control information including the predetermined control command, the identifier, the transmission order, and the flag area updated by the updating unit at the time of transmission determined by the determining unit. Control information including a predetermined control command, a unique identifier and transmission order, and a flag area in which a received flag indicating that the predetermined control command has been received can be recorded for each of a plurality of wireless devices is transmitted. Processing and
A process of receiving control information transmitted by another radio,
Each time control information is received, the received flag area, the flag area stored in the storage unit, and the received flag indicating that the predetermined control command has been received are logically ORed for each radio device and stored in the storage unit. A process of updating the stored flag area,
Based on the received transmission order and the preset transmission order, a process of determining the transmission time point,
A computer program that causes a process of transmitting control information including the predetermined control command and the identifier, the transmission order, and the updated flag area at the determined transmission time point. A plurality of wireless devices including a master device and a plurality of slave devices, any one wireless device is a communication method by a communication system capable of transmitting the same information to all other wireless devices,
Each of the radios
The transmitting unit transmits control information including a predetermined control command, an identifier and a transmission order of the wireless device, and a flag area in which a reception completion flag indicating that the predetermined control command has been received can be recorded for each slave device. ,
One child machine
The receiving unit receives the control information transmitted by the parent device or another child device,
The flag area is stored in the storage unit,
Each time the control information is received, the received flag area, the flag area stored in the storage unit, and the received flag indicating that the one slave has received the predetermined control command are logically ORed for each slave. And the updating unit updates the flag area stored in the storage unit,
Based on the received transmission order and the transmission order of the one slave set in advance, the determining unit determines the transmission time of the one slave,
The one slave is
At the determined transmission time point, the transmission unit transmits control information including the predetermined control command, the identifier and transmission order of the one child device, and the flag area updated by the update unit,
The main unit is
The receiving unit receives the control information transmitted by the plurality of slaves,
A communication method in which the determination unit determines whether or not the plurality of slave units have received the predetermined control command based on the received flag of each slave unit within the received flag area.

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