JP2018006899A - Control apparatus and radio communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control apparatus and a radio communication system capable of remotely controlling equipment at a low cost.SOLUTION: A control apparatus 10 comprises: an acquisition part 90 which acquires, by public radio communication 4, a communication packet 40 including at least one of a first control command for controlling an apparatus to be controlled 30 being a control object of the control apparatus 10 and a second control command for controlling a control object of other control apparatuses 20 to 22; a first control part 91 which, when the acquisition part 90 acquires the first control command, controls the apparatus to be controlled 30 and acquires first data showing a result of the control; a second control part 92 which, when the acquisition part 90 acquires the second control command, transmits the second control command to the other control apparatuses 20 to 22 through short-range radio communication 5 and acquires second data showing a response to the transmission through the short-range radio communication 5; and a response part 94 which transmits a communication packet 60 including at least one of the first data and the second data by the public radio communication 4.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a control device and a wireless communication system.

  Devices such as GHP (Gas Heat Pump air-conditioner) or vending machines are widely installed, and it is required to remotely monitor the status of multiple devices or information on devices such as fees using wireless communication Yes. Further, it is required that various settings of the plurality of devices can be performed remotely. In addition, it is necessary to remotely monitor or control the state of industrial equipment such as machine tools installed in a factory from a remote location.

  Conventionally, public wireless communication of a communication standard such as 3G or LTE (Long Term Evolution) is used for remote monitoring and control of the above devices. For remote monitoring and control of the device, the device is equipped with a modem corresponding to the public wireless communication, or an external type modem is connected.

  For example, there is an information collection system that collects unique data such as sales performance information from vending machines by public wireless communication (see, for example, Patent Document 1). In the information collection system described in Patent Document 1, a communication terminal device is connected to a control device of a vending machine, and a command signal for acquiring unique data is notified to the control device to respond to the command signal from the vending machine. To collect information. In addition, a command signal for instructing collection of necessary data is set in advance from the data management aggregation device to the communication terminal device attached to the vending machine, and the communication terminal device transmits the command signal to the vending machine for sale. Unique data such as quantity is obtained.

JP 2006-018370 A

  However, although the information collection system described in Patent Document 1 can be monitored and controlled from a remote location, equipment costs are high because each device is equipped with a modem that supports public wireless communication.

  In addition, even if there is no change in the status of the device, to check the status of the device, connect to each device using public wireless communication and communicate to perform remote device status acquisition. Therefore, there is a problem that the communication cost is high.

  Therefore, the present invention provides a control device and a wireless communication system that can control devices remotely at low cost.

  A control device according to an aspect of the present invention includes a first control command for controlling a controlled device that is a control target of the control device, and a second control command for controlling a control target of another control device. An acquisition unit that acquires at least one of the control communication packets by public wireless communication; and when the acquisition unit acquires the first control command, the control unit controls the controlled device and indicates a result of the control. When the first control unit that acquires one data and the acquisition unit acquires the second control command, the second control command is transmitted to the other control device by short-range wireless communication, and a response to the transmission is received. A second control unit that obtains the second data indicating by the short-range wireless communication, and a response communication packet including the first data and the second data as a response to the control communication packet. And a response unit which transmits a public wireless communication.

  As a result, the control device performs communication using public wireless communication together with public wireless communication originally performed by other control devices. Therefore, the other control devices do not need to perform public wireless communication, and thus the number of communication using public wireless communication is suppressed. That is, the communication cost is suppressed. Further, since public wireless communication originally performed by another control device is performed by the control device, the other control device does not need a modem for connection to public wireless communication. Therefore, the cost of another control apparatus is suppressed.

  The first data or the second data includes emergency information indicating whether or not the data should be urgently transmitted, and the response unit is further included in the first data or the second data. If the emergency information indicates that the data should be transmitted urgently, the data is transmitted by public wireless communication, and then the response communication includes data that does not indicate that the emergency information should be transmitted urgently The packet may be transmitted by public wireless communication.

  This makes it easier for the user to notice an abnormality in the controlled device, and thus can respond immediately to the abnormality.

  The control device further includes a storage unit, and the first control unit further includes the first data from the controlled device even when the acquisition unit does not acquire the first control command. And storing the second data from the other control device even when the acquisition unit has not acquired the second control command. The second data acquired by short-range wireless communication is stored in the storage unit, and the response unit further transmits a response communication packet in which a plurality of data stored in the storage unit is collected to a public wireless You may transmit by communication.

  Thereby, since it becomes possible to acquire easily the data which a controlled apparatus has, a user's workload is suppressed.

  In addition, when the second control unit acquires the second data from the other control device, the second control unit stores the acquired second data in the storage unit and deletes the second data. A delete command may be transmitted to the other control device by the short-range wireless communication.

  Thereby, since it is suppressed that the same data is preserve | saved in several places, the compression of the capacity | capacitance of a storage part is suppressed. Further, since the control device transmits the delete command after storing the data in the storage unit, the delete command is not transmitted when the data is not transmitted from another control device due to a communication error. Therefore, it is possible to prevent other control devices from deleting the data by mistake.

  A wireless communication system according to an aspect of the present invention includes the above-described control device, the other control device connected to the control device by short-range wireless communication, and the controlled device connected to the control device. And comprising.

  As a result, it is possible to reduce the number of devices for installing expensive modems, and the cost for communication is suppressed. Therefore, the cost concerning the whole radio | wireless communications system is suppressed.

  According to the control device and the wireless communication system of the present invention, it is possible to control devices remotely at a low cost.

1 is a configuration diagram of a radio communication system including a control device according to Embodiment 1. FIG. FIG. 2 is a diagram illustrating a hardware configuration of the control device according to the first embodiment. FIG. 3A is an explanatory diagram of a communication packet including a control command according to Embodiment 1. FIG. 3B is an explanatory diagram of a communication packet acquired by the control device according to Embodiment 1 from another control device. FIG. 3C is an explanatory diagram of a communication packet transmitted from the control device according to Embodiment 1 to the aggregation device. FIG. 4 is a block diagram illustrating a characteristic functional configuration of the control device according to the first embodiment. FIG. 5 is a flowchart showing a processing procedure until a communication packet is received from the aggregation device and sent back in the control device according to the first embodiment. FIG. 6 is a sequence diagram illustrating a specific example of a processing procedure from reception of a communication packet from the aggregation device in the control device according to Embodiment 1 to return of the communication packet. FIG. 7 is an explanatory diagram of a communication packet including an emergency flag according to the second embodiment. FIG. 8 is a flowchart illustrating a processing procedure for transmitting a communication packet to the aggregation device in the control device according to the second embodiment. FIG. 9 is a sequence diagram illustrating a specific example of a processing procedure when a communication packet including an emergency flag is acquired from another control device in the control device according to the second embodiment. FIG. 10 is a block diagram illustrating a characteristic functional configuration of the control device according to the third embodiment. FIG. 11 is an explanatory diagram of a communication packet including a delete command according to the third embodiment. FIG. 12 is a flowchart illustrating a processing procedure in which the control device according to the third embodiment transmits a delete command to another control device. FIG. 13 is a sequence diagram illustrating a specific example of a processing procedure for transmitting a communication packet to the aggregation device in the control device according to the third embodiment. FIG. 14 is a sequence diagram illustrating a specific example of a processing procedure when a communication packet that is determined to be urgent by another control device in the control device according to the third embodiment is acquired.

  Hereinafter, a control device and a wireless communication system according to embodiments will be described with reference to the drawings. Note that each of the embodiments described below shows a specific example of the present invention. The numerical values, the constituent elements, the arrangement positions and connection forms of the constituent elements, the steps, the order of steps, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims indicating the highest concept are described as optional constituent elements. In addition, the same code | symbol is attached | subjected to the same component and operation | movement, and description may be abbreviate | omitted.

(Embodiment 1)
First, a configuration of a wireless communication system including a control device according to the present embodiment will be described.

  FIG. 1 is a diagram showing a configuration of a system including a control device according to the present invention. As illustrated in FIG. 1, in the wireless communication system 100 according to the present embodiment, the control device 10 is connected to other control devices 20 to 22 via short-range wireless communication 5 such as Wi-Fi (registered trademark). Is done. The control device 10 and the other control devices 20 to 22 are wiredly connected to controlled devices 30 to 33 such as FA (Factory Automation) devices or vending machines. The control device 10 is connected to the aggregation device 1 via a public wireless communication (Internet) 4 and via a router 3 and a LAN (Local Area Network) 2. The short-range wireless communication 5 is a relatively short-range wireless communication performed between devices separated by a distance of approximately 100 m or less, and the public wireless communication 4 is performed between devices separated by a distance of approximately 100 m to several km. This is a relatively long-distance wireless communication.

  The aggregation device 1 is a computer that transmits a communication packet including a control command that gives various instructions to the control device 10 or the other control devices 20 to 22 or receives a communication packet transmitted from the control device 10. In the present embodiment, the aggregation device 1 is a personal computer used by a user.

  The router 3 functions as a gateway that interconnects the LAN 2 and the public wireless communication 4.

  The control device 10 is an example of the control device 10 according to the present invention, and receives a communication packet such as a control command for instructing data acquisition from the aggregation device 1 and specifies an instruction target stored in the communication packet. A function of discriminating a device identifier to be performed. In addition, the control device 10 has a function of transmitting the communication packet to the other control devices 20 to 22 corresponding to the determined device identifier by the short-range wireless communication 5.

  Furthermore, the control device 10 collectively transmits the data of the other control devices 20 to 22 that have transmitted the communication packets and the controlled devices 30 to 33 that are connected to the control device 10 to the aggregation device 1. The data is, for example, a sales amount in a vending machine or data measured by the FA device in an FA device.

  The control device 10 and the other control devices 20 to 22 acquire the above-described data included in the connected controlled devices 30 to 33 according to the instruction of the aggregation device 1. Thereafter, the data acquired by the other control devices 20 to 22 is transmitted to the control device 10 using the short-range wireless communication 5. The control device 10 collectively transmits the data to the aggregation device 1. A specific data transmission / reception procedure will be described later.

  The other control devices 20 to 22 are connected to the control device 10 via the short-range wireless communication 5, are connected to the controlled devices 31 to 33 by wire, and are connected from the controlled devices 31 to 33 connected according to the control command described above. It is a control device that performs data acquisition and the like.

  In addition, although the control apparatus 10 and the other control apparatuses 20 to 22 are illustrated in the wireless communication system 100 according to the present embodiment in FIG. 1, the number of installed control apparatuses and other control apparatuses is not particularly limited. In the wireless communication system 100, a control device and one or more other control devices are connected via the short-range wireless communication 5, and the control device performs data summarization described above and transmission / reception of communication packets with the aggregation device 1. Any system can be used. A plurality of controlled devices may be connected to one control device.

  FIG. 2 is a block diagram showing a hardware configuration of the control device 10 according to the present embodiment.

  As shown in FIG. 2, the control device 10 includes a CPU (Central Processing Unit) 11, a public wireless I / F (interface) 12, a short-range wireless I / F 13, a device connection I / F 14, and a modem 15. And a memory 16. In addition, the control device 10 includes an RTC (Real Time Clock) 17. The above components are connected to each other by a bus inside the control device 10.

  The CPU 11 is a processor that executes a control program stored in the memory 16. The processing executed by the control device 10 can be realized by the CPU 11 executing the control program.

  The public wireless I / F 12 is a communication I / F that transmits and receives communication packets to and from the aggregation device 1 via public wireless communication 4 of a communication standard such as 3G or LTE (Long Term Evolution).

  The short-range wireless I / F 13 is a communication I / F that transmits and receives communication packets between control devices by communication such as Wi-Fi (registered trademark) or Bluetooth (registered trademark).

  The device connection I / F 14 is a communication I / F for making a wired connection with the controlled apparatus 30. For example, the communication I / F conforms to various communication standards such as serial communication such as RS-232C, CAN (Controller Area Network) communication, USB communication, and Ethernet communication.

  The modem 15 is a device that modulates a communication packet to be transmitted or demodulates a communication packet transmitted from the outside.

  The memory 16 is used as a work area used when the CPU 11 executes the control program, or is a storage area for storing data such as communication packets. One or more memories 16 are installed in the control device 10. The memory 16 may be either a volatile memory or a nonvolatile memory, or both. The volatile memory 16 is, for example, a RAM (Random Access Memory). The nonvolatile memory 16 is, for example, an HDD (Hard Disk Drive) or an SSD (Solid State Drive).

  The RTC 17 is a timepiece having a function of continuing time measurement by a battery (not shown) connected to the control device 10 even when the power of the control device 10 is turned off.

  Note that the control device 10 may include only one of the public wireless I / F 12 and the modem 15. When the control device 10 includes the public wireless I / F 12 and the modem 15, the public wireless I / F 12 and the modem 15 may be integrated.

  The configurations of the other control devices 20 to 22 may be the same as those of the control device 10. However, the control device 10 according to the present embodiment serves as a relay between the aggregation device 1 connected via the public wireless communication 4 and the other control devices 20 to 22 connected via the short-range wireless communication 5. Take on. Therefore, the other control devices 20 to 22 may not include the public wireless I / F 12 and the modem 15. By doing so, it is possible to reduce the number of control devices in which expensive modems 15 are installed, and the cost for communication is suppressed. Therefore, the cost for the entire wireless communication system 100 is suppressed.

  Next, specific examples of communication packets transmitted and received in the radio communication system according to the present embodiment will be described with reference to FIGS. 3A to 3C.

  FIG. 3A is an explanatory diagram of a communication packet in which a control command transmitted from the aggregation device 1 according to the present embodiment to the control device 10 is stored. When the user wants to acquire data of controlled devices 30 to 33 connected to the control device 10 or other control devices 20 to 22, the user transmits a communication packet 40 from the aggregation device 1 to the control device 10. As shown in FIG. 3A, an IP (Internet Protocol) header 41 and a TCP (Transmission Control Protocol) header 42 are stored in the communication packet (control communication packet) 40.

  The IP header 41 is attached to the beginning of the communication packet. The IP header 41 stores information such as an IP version, a source address, and a destination address.

  The TCP header 42 is added to the head of the TCP packet. The TCP header 42 stores a port number or a sequence number.

  In the communication packet 40, a plurality of device identifiers 43 and a plurality of control commands 44 are stored. The communication packet 40 is not limited to a plurality, and at least one device identifier 43 and a control command 44 may be stored.

  The device identifier 43 is an identifier that specifies an address of a device that the user wants to specify. Specifically, the device identifier 43 may be any identifier that can uniquely identify a device, and is, for example, a dedicated identifier, an IP (Internet Protocol) address, or a MAC (Media Access Control) address. The device identifier 43 may be an address designating the control device 10 and the other control devices 20 to 22, or may be those of the controlled devices 30 to 33 connected to the control device 10 or the other control devices 20 to 22, There is no particular limitation as long as the device specified by the user can be identified.

  The control command 44 is a command indicating a task that the user wants to instruct the controlled devices 30 to 33. The communication packet 40 stores the device identifiers 43 and control commands 44 of the controlled devices 30 to 33 as many as the user wants to instruct. The control command 44 is, for example, a command for acquiring data included in the controlled devices 30 to 33 or changing settings of the controlled devices 30 to 33. The device identifier 43 and the control command 44 are associated with each other and stored in the communication packet 40. For example, as shown in FIG. 3A, a control command 44 is stored after the device identifier 43, and then a device identifier 43 indicating a device different from the device identifier 43 is stored, followed by a device indicating the other device. A control command 44 for the identifier 43 is stored. In this way, the acquisition unit 90 determines the relationship between the device identifier 43 and the control command 44.

  FIG. 3B is an explanatory diagram of communication packets that the control device 10 according to the present embodiment acquires from the other control devices 20 to 22. The control device 10 that has acquired the communication packet 40 illustrated in FIG. 3A determines the device identifier 43 included in the communication packet 40, creates a communication packet for each device, and transmits the communication packet to the corresponding device. The other control devices 20 to 22 that have acquired the communication packet acquire data from the connected controlled devices 31 to 33, for example, according to the control command 44 stored in the communication packet. The other control devices 20 to 22 create the communication packet 50 shown in FIG. 3B.

  The communication packet 50 stores an IP header 41, a TCP header 42, a device identifier 43, and response data 51.

  The response data 51 is data acquired from the controlled devices 31 to 33 connected to the other control devices 20 to 22 described above. The other control devices 20 to 22 store the acquired response data 51 in the communication packet 50 and transmit it to the control device 10.

  When the device identifier 43 included in the communication packet 40 is the controlled device 30 connected to the control device 10, the control device 10 acquires the response data 51 from the controlled device 30 according to the control command 44.

  FIG. 3C is an explanatory diagram of a communication packet transmitted to the aggregation device 1 by the control device 10 according to the present embodiment. The control device 10 that has acquired the communication packet 50 illustrated in FIG. 3B puts together the response data 51 acquired from the other control devices 20 to 22 and the response data 51 acquired from the controlled device 30 as illustrated in FIG. 3C. One communication packet (response communication packet) 60 is created. In the communication packet 60, an IP header 41, a TCP header 42, a device identifier 43, and response data 51 are stored. In the communication packet 60, the device identifier 43 acquired by the control device 10, the device identifier 43 of the number of response data 51, and the response data 51 are stored in association with each other. The control device 10 transmits the created communication packet 60 to the aggregation device 1.

  Next, a characteristic functional configuration of the control device 10 according to the first embodiment will be described.

  FIG. 4 is a block diagram illustrating a characteristic functional configuration of the control device 10. That is, FIG. 3 is a block diagram illustrating functions according to the first embodiment among the functions of the control device 10 exhibited by the hardware configuration illustrated in FIG. 2. In FIG. 4, unlike FIG. 1, the other control devices 20 to 22 connected to the control device 10 by the short-range wireless communication 5 show only the other control device 20.

  As shown in FIG. 4, the control device 10 functionally includes an acquisition unit 90, a first control unit 91, a second control unit 92, a storage unit 93, and a response unit 94.

  The acquisition unit 90 includes the CPU 11 and the public wireless I / F 12 in FIG. 2, and connects the control device 10 and the aggregation device 1 via the public wireless communication 4. The acquisition unit 90 is a processing unit that determines the device identifier 43 stored in the communication packet 40. Specifically, the acquisition unit 90 includes a first control command that is a control command 44 for controlling the controlled device 30 that is a control target of the control device 10 included in the communication packet 40, or another control device 20. The device identifier 43 determines whether the second control command is the control command 44 for controlling the controlled device 31 that is the control target.

  The first control unit 91 includes the CPU 11 and the device connection I / F 14 in FIG. 2, and connects the control device 10 and the controlled device 30. The first control unit 91 is a processing unit that controls the controlled device 30 in accordance with the control command 44 (first control command) for the controlled device 30 received from the acquisition unit 90. Specifically, the first control unit 91 acquires first data according to the control command 44 (first control command).

  For example, when the control command 44 is a command (an example of the first control command) that is an instruction to acquire data 99 (an example of the first data) from the controlled device 30, the first control unit 91 receives the command from the controlled device 30. A communication packet 50 including data 99 as response data 51 is acquired. The first control unit 91 further stores the acquired communication packet 50 or response data 51 included in the communication packet 50 in the storage unit 93. The first control unit 91 may transmit the communication packet 50 to a response unit 94 described later. In this case, the response unit 94 stores the communication packet 50 in the storage unit 93.

  For example, it is assumed that the control command 44 is a command (an example of a first control command) that is an instruction to change the setting of the controlled device 30. At this time, the first control unit 91 uses the data (an example of first data) indicating the result of whether or not the setting has been changed from the controlled device 30 as the response data 51, and includes the communication packet 50 including the response data 51. To get.

  The second control unit 92 includes the CPU 11 and the short-range wireless I / F 13 in FIG. 2 and connects the control device 10 and the other control device 20 via the short-range wireless communication 5. The second control unit 92 is a processing unit that transmits the control command 44 (second control command) for the other control device 20 received from the acquisition unit 90 to the other control device 20. Further, the second control unit 92 acquires the communication packet 50 including the response data 51 (second data) corresponding to the control command 44 (second control command) from the other control device 20, and acquires the acquired communication packet 50 or The response data 51 included in the communication packet 50 is stored in the storage unit 93. Note that the second control unit 92 may transmit the communication packet 50 to a response unit 94 described later. In this case, the response unit 94 stores the communication packet 50 in the storage unit 93.

  For example, it is assumed that the control command 44 is a command (an example of the second control command) that is an instruction to acquire data 99 (an example of the second data) from the controlled device 31 connected to the other control device 20. At this time, the second control unit 92 acquires the communication packet 50 including the data 99 (corresponding to the response data 51 of FIG. 3B) from the other control device 20, and stores the communication packet 50 in the storage unit 93.

  The storage unit 93 corresponds to the memory 16 in FIG. 2 and stores a control program executed by the CPU 11. The storage unit 93 stores the response data 51 acquired by the first control unit 91 or the second control unit 92.

  The response unit 94 includes the CPU 11 and the public wireless I / F 12 in FIG. 2, and connects the control device 10 and the aggregation device 1 via the public wireless communication 4. The response unit 94 is a processing unit that creates a communication packet 60 in which a plurality of response data 51 received from the first control unit 91 or the second control unit 92 is collected, and transmits the communication packet 60 to the aggregation device 1. is there. Specifically, the response unit 94 creates a communication packet 60 in which a plurality of response data 51 stored in the storage unit 93 is collected, and transmits the communication packet 60 to the aggregation device 1.

  Next, the operation of the control device 10 configured as described above will be described.

  FIG. 5 is a flowchart illustrating an example of a processing procedure until the control device 10 according to Embodiment 1 receives the communication packet 40 from the aggregation device 1 and transmits the communication packet 60 to the aggregation device 1. In FIG. 5, it is assumed that the control command 44 is a command for acquiring data 99 from the controlled devices 30 to 33 connected to the control device 10 and the other control devices 20 to 22.

  The control device 10 receives the communication packet 40 in which a plurality of device identifiers 43 and control commands 44 are stored from the aggregation device 1 (S10). Next, the control device 10 determines the device identifier 43 stored in the communication packet 40 (S12). When the determined device identifier 43 indicates the control device 10, the control device 10 acquires the data 99 that is the response data 51 from the controlled device 30 connected to the control device 10 according to the control command 44 (S13).

  When the determined device identifier 43 indicates another control device (for example, any one of the other control devices 20 to 22 illustrated in FIG. 1), the control device 10 includes a control command 44 for the specified other control device. A communication packet is created and transmitted (S14). In S <b> 14, the control device 10 enters a reception standby state for the response data 51 from another control device that has transmitted the communication packet including the control command 44 described above. The control device 10 repeats the above operations from S12 to S14 as many as the number of device identifiers 43 stored in the communication packet 40 (loop A in S11 and S15).

  The control device 10 receives the response data 51 from another control device that has transmitted the communication packet including the control command 44 described above. Here, the control device 10 confirms whether or not all the response data 51 that is the instruction target of the control command 44 stored in the communication packet 40 has been acquired (S16). When all the response data 51 are collected, the control device 10 creates a communication packet 60 in which the response data 51 is collected (S17). Next, the control device 10 transmits the communication packet 60 to the aggregation device 1 (S18).

  That is, the control device 10 according to the present invention controls the first control command for controlling the controlled device 30 that is the control target of the control device 10 and the control target of the other control devices 20 to 22. An acquisition unit 90 that acquires the communication packet 40 (control communication packet) including at least one of the second control commands by the public wireless communication 4 is provided. Moreover, the control apparatus 10 is provided with the 1st control part 91 which controls the to-be-controlled device 30 and acquires the 1st data which shows the result of the said control, when the acquisition part 90 acquires a 1st control command. In addition, when the acquisition unit 90 acquires the second control command, the control device 10 transmits the second control command to the other control devices 20 to 22 by the short-range wireless communication 5 and indicates a response to the transmission. A second control unit 92 that acquires data by the short-range wireless communication 5 is provided. In addition, the control device 10 includes a response unit 93 that transmits the communication packet 60 (response communication packet) including the first data and the second data described above as a response to the communication packet 40 by the public wireless communication 4.

  By doing so, the control device 10 performs communication using the public wireless communication 4 together with communication using the public wireless communication 4 originally performed by the other control devices 20 to 22. Therefore, the other control devices 20 to 22 do not need to perform communication using the public wireless communication 4, respectively, and therefore the number of communication using the public wireless communication 4 is suppressed. That is, the communication cost of the entire system is suppressed. Further, since the communication using the public wireless communication 4 originally performed by the other control devices 20 to 22 is performed by the control device 10, the modem 15 for connecting to the public wireless communication 4 is connected to the other control devices 20 to 22. Is no longer necessary. Therefore, the cost of the other control devices 20 to 22 is suppressed.

  Note that the control device 10 does not necessarily have to combine the response data 51 acquired from the controlled device 30 and the other control devices 20 to 22 into one communication packet. Depending on the data amount of the response data 51 or the communication speed of the data, the number of communication packets in which the response data 51 is collected may be set to a plurality.

  In S16 and S17, the control device 10 confirms whether or not all the response data 51 that is the target of the control command 44 stored in the communication packet 40 has been acquired. At that time, a communication packet 60 in which the response data 51 is collected is created. However, the timing for collecting the response data 51 is not limited to this. It may be the time elapsed from the time when the control device 10 transmits the control command 44, or may be the time when a predetermined number of data is acquired, and is not limited.

  Moreover, the timing of the response data 51 transmitted from the other control devices 20 to 22 to the control device 10 is not limited. The response data 51 transmitted from the other control devices 20 to 22 may be transmitted at different timings.

  FIG. 6 is a sequence diagram illustrating a specific example of a processing procedure in the control device 10 according to Embodiment 1 from receiving the communication packet 40 from the aggregation device 1 and transmitting the communication packet 60 to the aggregation device 1. . A wireless communication system 100 illustrated in FIG. 6 includes a control device 10 and other control devices 20 to 22. In FIG. 6, although not shown, as shown in FIG. 1, it is assumed that one controlled device 30 to 33 is connected to each of the control device 10 and the other control devices 20 to 22. In FIG. 6, operations substantially the same as those in the flowchart shown in FIG. 5 are denoted by the same reference numerals.

  As shown in FIG. 6, the user transmits a communication packet 40 storing a plurality of control commands 44 from the aggregation device 1 to the control device 10. The control device 10 receives the communication packet 40 (S10). Next, the control device 10 determines the device identifier 43 stored in the received communication packet 40 (S12). In FIG. 6, the control commands A to D included in the communication packet 40 are instructions for acquiring data from the controlled devices 30 to 33 connected to the control device 10 or other control devices 20 to 22, respectively. Suppose that it was a command.

  The control device 10 creates and transmits a communication packet storing the control command B, C, or D to each of the other control devices 20 to 22, as shown in FIG. S14). The control device 10 and the other control devices 20 to 22 acquire data from the controlled devices 30 to 33 in accordance with the control commands A to D (S13 and S141).

  Next, as shown in FIG. 6, the other control devices 20 to 22 transmit the acquired data to the control device 10 as response data F to H (S16).

  When the control device 10 acquires the response data E from the controlled device 30 and the response data F to H from the other control devices 20 to 22, the control device 10 receives the acquired response data E to H, respectively. The combined communication packet 60 is created (S17). The control device 10 transmits the communication packet 60 to the aggregation device 1 (S18).

  The above is the description of the control device 10 and the wireless communication system 100 in the first embodiment.

  In the loop A of S11 and S15 in FIG. 5, the control device 10 performs an operation corresponding to the device identifier every time the device identifier is determined. Moreover, in S12 and S13 of FIG. 6, the control apparatus 10 transmitted the control command to the other control apparatuses 20-22 after discriminating all the device identifiers. Although the operation of the control device 10 in FIGS. 5 and 6 is different, any of them may be used and the operation is not limited.

(Embodiment 2)
Next, a control device and a wireless communication system in the second embodiment will be described.

  The configuration of the radio communication system including the control device according to the second embodiment is substantially the same as that of the radio communication system 100 including the control device according to the first embodiment shown in FIG. The control device 10 in the first embodiment described above operates according to the device identifier 43 and the control command 44 included in the communication packet 40 received from the aggregation device 1. In the second embodiment, in addition to the operation of the first embodiment, the control device 10 is further connected to the control device 10 even when the communication packet 40 is not acquired from the aggregation device 1. Response data 51 is acquired from the device 30 and the other control devices 20-22.

  Specifically, the first control unit 91 repeatedly acquires data (first data) from the controlled device 30 connected to the control device 10 according to a predetermined control command (first control command). Here, the predetermined control command is, for example, a command for obtaining data of the controlled device 30 or changing the setting of the controlled device 30. Specifically, for example, when the controlled device 30 is a device that measures temperature, the controlled device 30 measures the temperature every 10 minutes, and transmits the measured temperature data to the control device 10 every time the temperature is measured. To do.

  The second control unit 92 repeatedly acquires data (second data) from the other control devices 20 to 22 in accordance with a predetermined control command (second control command). Here, the predetermined control command is, for example, a command such as acquisition of data that the controlled devices connected to the other control devices 20 to 22 have in 31 to 33 or a setting change of the controlled device 30. is there.

  In the control device 10 according to the second embodiment, the first control unit 91 and the second control unit 92 repeatedly acquire and store the data stored in the storage unit 93 to the aggregation device 1. Specifically, the response unit 94 creates a communication packet 60 in which a plurality of response data 51 stored in the storage unit 93 is collected, and transmits the communication packet 60 to the aggregation device 1.

  Moreover, the 1st control part 91 and the 2nd control part 92 acquire the response data 51 from the to-be-controlled device 30 and the other control apparatuses 20-22 according to a predetermined condition. Here, the predetermined condition is the number or type of response data 51 to be acquired. One or more response data 51 may be acquired. Moreover, when acquiring the some response data 51, the timing or cycle acquired with each response data 51 may differ. The first control unit 91 and the second control unit 92 store the acquired response data 51 in the storage unit 93. That is, the response unit 94 creates a communication packet 60 in which the response data 51 stored in the storage unit 93 is collected, and repeatedly transmits the communication packet 60 to the aggregation device 1. The period for collectively sending the response data 51 to the aggregation device 1 is not particularly limited, but may be one day or one week. By doing so, it becomes possible to easily acquire the data included in the controlled devices 30 to 33, so that the user's workload is suppressed.

  Further, the first control unit 91 and the second control unit 92 further determine an emergency flag included in the communication packet including the response data 51 acquired from the controlled device 30 and the other control devices 20 to 22. Specifically, the first control unit 91 and the second control unit 92 determine whether or not the response data 51 acquired from the controlled device 30 and the other control devices 20 to 22 is urgent. Here, the determination of urgency means determination of the importance of the response data 51 acquired in advance, and distinguishes information that should be urgently delivered to the aggregation device 1. The urgent data is, for example, data that the user needs to confirm immediately.

  FIG. 7 is an explanatory diagram of a communication packet including an emergency flag according to the second embodiment. As shown in FIG. 7, an emergency flag 71 is stored in the communication packet 70 acquired from the controlled device 30 and the other control devices 20 to 22 in the second embodiment. The first control unit 91 and the second control unit 92 determine the emergency flag 71 when the communication packet 70 is acquired. The emergency flag 71 is not particularly limited, and may be “1” when the urgency is high, and may be “0” when the urgency is low. The emergency flag 71 may be set at a plurality of levels according to the urgency.

  The first control unit 91 determines the emergency flag 71 included in the communication packet 70 when acquiring the communication packet 70 from the controlled apparatus 30. Further, the second control unit 92 determines the emergency flag 71 included in the communication packet 70 when acquiring the communication packet 70 from the other control devices 20 to 22.

  When the first control unit 91 and the second control unit 92 determine that the response data 51 included in the acquired communication packet 70 is urgent, the first control unit 91 and the second control unit 92 do not store the response data 51 in the storage unit 93. It transmits to the response part 94. The response unit 94 immediately transmits the response data 51 to the aggregation device 1.

  In addition, when the first control unit 91 and the second control unit 92 determine that the acquired response data 51 is not urgent, the first control unit 91 and the second control unit 92 cause the storage unit 93 to store the response data 51. That is, the response unit 94 does not combine the response data 51 determined to be urgent with the response data 51 determined to be non-urgent, and to the user before the response data 51 determined not to be urgent. Send. By doing so, the user can easily notice the abnormality of the controlled devices 30 to 33, and can immediately cope with the abnormality.

  When the first control unit 91 and the second control unit 92 acquire the communication packet 70, the first control unit 91 and the second control unit 92 determine the emergency flag 71 included in the communication packet 70, and the response data 51 Is stored in the storage unit 93, but is not limited. The response unit 94 may determine the emergency flag 71 included in the communication packet 70 and store the response data 51 in the storage unit 93.

  Next, a characteristic operation of the control device 10 according to the second embodiment configured as described above will be described.

  FIG. 8 is a flowchart illustrating a processing procedure until a communication packet is transmitted to the aggregation device 1 in the control device 10 according to the second embodiment.

  As shown in FIG. 8, the control apparatus 10 acquires the communication packet 70 in which the response data 51 and the emergency flag 71 shown in FIG. 7 are stored (S21). Here, the communication packet 70 in which the response data 51 and the emergency flag 71 are stored is the communication packet 70 acquired from the controlled device 30 connected to the control device 10 and the communication acquired from the other control devices 20 to 22. Packet 70.

  Next, the first control unit 91 and the second control unit 92 determine the emergency flag 71 stored in the acquired communication packet 70 (S22). When the first control unit 91 and the second control unit 92 determine that the acquired communication packet 70 is not urgent, the first control unit 91 and the second control unit 92 receive the communication packet 70 or the device identifier 43 and the response data 51 included in the communication packet 70. The information is stored in the storage unit 93 (S23). When determining that the acquired communication packet 70 is urgent, the first control unit 91 and the second control unit 92 transmit the communication packet 70 to the response unit 94 without storing the communication packet 70 in the storage unit 93. The response unit 94 immediately transmits the communication packet 70 to the aggregation device 1 (S24).

  As described above, the control device 10 repeats the operations from S21 to S24 a predetermined number of times (loop B of S20 and S25). For example, the control device 10 repeats the operations from S21 to S24 once every minute for a total of 10 minutes (that is, 10 times). In addition, the frequency | count, the frequency, the kind of data, etc. which acquire the communication packet 70 are not specifically limited.

  The response unit 94 repeats the loop B of S20 and S25 for a predetermined number of times as described above, and then collects a plurality of response data 51 stored in the storage unit 93 as shown in FIG. 3C. 60 is created (S26). The response unit 94 transmits the communication packet 60 to the aggregation device 1. In addition, the frequency | count or frequency of the response part 94 transmitting the communication packet 60 are not specifically limited.

  This makes it easier for the user to notice an abnormality in the controlled device, and thus can respond immediately to the abnormality. In addition, by doing so, it becomes possible to easily acquire the data that the controlled device has, and thus the workload of the user is suppressed.

  FIG. 9 is a sequence diagram illustrating a characteristic processing procedure for transmitting a communication packet to the aggregation device 1 in the control device 10 according to the second embodiment. A radio communication system 100a illustrated in FIG. 9 includes a control device 10 and other control devices 20-22. Although not shown in FIG. 9, it is assumed that controlled devices 30 to 33 are connected to the control device 10 and the other control devices 20 to 22, respectively, as shown in FIG. In the sequence diagram of FIG. 9, the same operations as those in the flowchart of FIG. 8 are denoted by the same reference numerals as those in FIG.

  As illustrated in FIG. 9, the other control devices 20 to 22 acquire the communication packet 70 including the response data 51 and the emergency flag 71 from the controlled devices 31 to 33, and transmit the communication packet 70 to the control device 10 (S200). The control device 10 acquires the communication packet 70 including the response data 51 and the emergency flag 71 from the other control devices 20 to 22 (S21). In S <b> 21, the control device 10 acquires the communication packet 70 including the response data 51 and the emergency flag 71 from the controlled device 30 connected to the control device 10. In S <b> 21, the timing at which the control device 10 acquires the communication packet 70 from the other control devices 20 to 22 and the timing at which the communication packet 70 is acquired from the controlled device 30 may be interchanged, and are not particularly limited. .

  The control device 10 determines the emergency flag 71 stored in the acquired communication packet 70 (S22). When determining that the response data 51 is not urgent from the emergency flag 71, the control device 10 stores the response data 51 in the storage unit 93 (S23). The control device 10 repeats the above operation a predetermined number of times. For example, the control device 10 repeats the operations from S21 to S24 once every minute for a total of 10 minutes (that is, 10 times). Note that the number, frequency, type, and the like of acquiring the communication packet 70 are not particularly limited.

  Next, a case where the control device 10 acquires the communication packet 70 including the emergency flag 71 and the response data 51 that are determined to be urgent will be described. As shown in FIG. 9, for example, it is assumed that another control device 21 has transmitted a communication packet 70 including an emergency flag 71 determined to be urgent and response data 51 (S201). The control device 10 acquires the communication packet 70 (S21), and determines the emergency flag 71 included in the communication packet 70 (S22). Here, when the control device 10 determines that the communication packet 70 acquired based on the presence or absence of the emergency flag is urgent, the control device 10 immediately transmits the communication packet 70 to the aggregation device 1 without storing the communication packet 70 in the storage unit 93 ( S24).

  The control device 10 and the other control devices 20 to 22 repeat the operations of S21 to S24, S200, and S201 a predetermined number of times. Thereafter, the control device 10 creates a communication packet 60 that summarizes the response data stored in the storage unit 93 (S26), and transmits the communication packet 60 to the aggregation device 1.

  In loop B of S20 and S25 in FIG. 8, the control device 10 determines the emergency flag 71 every time the communication packet 70 is acquired. Further, in S21 to S23 of FIG. 9, the control device 10 collectively determines the emergency flag 71 after acquiring the communication packet 70 from each of the other control devices 20 to 22. Although the operation of the control device 10 in FIGS. 8 and 9 is different, it may be any and is not limited.

  The above is the description of the control device 10 and the wireless communication system 100a in the second embodiment.

(Embodiment 3)
Next, a control device and a wireless communication system according to Embodiment 3 will be described.

  The configuration of the wireless communication system including the control device according to the third embodiment is substantially the same as that of the wireless communication system including the control device according to the first and second embodiments shown in FIG. The control device 10 according to the second embodiment described above is determined in advance from the controlled device 30 and the other control devices 20 to 22 even when the communication packet 40 including the control command 44 is not acquired from the aggregation device 1. Response data was acquired according to the control command.

  In the third embodiment, another control device repeatedly obtains data from the controlled device to which the other control device is connected, and stores the data in a storage unit included in the other control device. In addition, the other control devices collectively transmit the stored data to the control device. Here, in addition to the operation of the second embodiment, the control device according to the third embodiment further deletes data acquired from another control device from the storage unit of the other control device. And send the delete command to another control device.

  FIG. 10 is a block diagram illustrating a characteristic functional configuration of the control device according to the third embodiment. In FIG. 10, the other control devices connected to the control device by the short-range wireless communication 5 are not limited in the number of devices connected thereto, but only the other control device 20b is illustrated.

  As shown in FIG. 10, the control device 10b functionally includes an acquisition unit 90, a first control unit 91, a second control unit 92b, a storage unit 93, and a response unit 94.

  In addition to the operations of the first and second embodiments, the second control unit 92b according to the third embodiment further stores the response data 51 acquired from the other control device 20b in the storage unit 93. Then, a delete command which is an instruction to delete the response data 51 is created. The second control unit 92b transmits the delete command to the other control device 20b.

  In the wireless communication system 100b according to Embodiment 3, the other control device 20b includes a storage unit 98.

  The storage unit 98 is a storage device that stores data such as communication packets. The storage unit 98 is, for example, an HDD or an SSD.

  The other control device 20 b repeatedly obtains response data 51 from the connected controlled device 31 according to a predetermined condition and stores it in the storage unit 98. Here, the predetermined condition is the frequency of acquiring response data or the number of times per time, or the number or type of response data 51 to be acquired. One or more response data 51 may be acquired. Moreover, when acquiring the some response data 51, the timing or cycle which each response data 51 acquires may differ. The other control device 20b creates a communication packet in which the response data 51 stored in the storage unit 98 is collected, and transmits the communication packet to the control device 10b.

  Here, as described above, when the second control unit 92b acquires the response data 51 from the other control device 20b, the second control unit 92b stores the response data 51 in the storage unit 93. The second control unit 92b further creates a delete command that is an instruction to delete the response data 51 after storing the above-described response data 51 in the storage unit 93, and transmits the delete command to the other control device 20b. To do.

  The other control device 20b that has acquired the delete command deletes the response data 51 stored in the storage unit 98 in accordance with the instruction of the delete command. By doing so, it is possible to suppress the storage of similar response data 51 at a plurality of locations, and thus the compression of the capacity of the storage unit 98 is suppressed. Further, since the control device 10b transmits the delete command after storing the response data 51 in the storage unit 93, the delete command is transmitted when the response data 51 is not transmitted from the other control devices 20b to 22b due to a communication error. Is not sent. Therefore, it is suppressed that the other control apparatus 20b deletes the response data 51 accidentally.

  FIG. 11 is an explanatory diagram of a communication packet including a delete command according to the third embodiment.

  Similar to the second control unit 92 of the second embodiment, the second control unit 92b stores the communication packet 70 including the emergency flag 71 from the other control device 20b in the communication packet 70 described with reference to FIG. The determined emergency flag 71 is determined. When the second control unit 92b determines that the response data 51 is not urgent from the emergency flag 71, the communication identifier 70 stored in the communication packet 70 or the communication packet 70 and the response data 51 are stored in the storage unit 93 in association with each other. Let Here, the second control unit 92b creates the communication packet 80 shown in FIG. 11 in which the deletion command 81 for instructing to delete the response data 51 stored in the storage unit 93 from the storage unit 98 is stored.

  As shown in FIG. 11, an IP header 41, a TCP header 42, a device identifier 43, and a delete command 81 are stored in the communication packet 80.

  The delete command 81 is a command for instructing deletion of the response data 51 stored in the storage unit 98 of the other control device 20b. The second control unit 92b creates the communication packet 80 in which the delete command 81 is stored and transmits it to the other control device 20b. The other control device 20b that has acquired the communication packet 80 in which the delete command 81 is stored deletes the response data 51 stored in the storage unit 98 in accordance with the instruction of the delete command 81.

  Next, a characteristic operation of the control device 10b according to the third embodiment configured as described above will be described.

  FIG. 12 is a flowchart illustrating a processing procedure in which the control device 10b according to the third embodiment transmits the delete command 81 to the other control device 20b. In the flowchart of FIG. 12, operations similar to those in the flowchart of FIG. 8 are denoted by the same reference numerals as in FIG.

  As illustrated in FIG. 12, the second control unit 92b acquires the communication packet 70 in which the response data 51 and the emergency flag 71 illustrated in FIG. 7 are stored from the other control device 20b (S21).

  Next, the second control unit 92b determines the emergency flag 71 stored in the acquired communication packet 70 (S22). If the second control unit 92b determines that there is urgency, the second control unit 92b transmits the communication packet 70 to the response unit 94. The response unit 94 immediately transmits the communication packet 70 to the aggregation device 1 (S24).

  If the second control unit 92b determines that there is no urgency, the communication packet 70 or the device identifier 43 included in the communication packet 70 and the response data 51 are associated with each other and stored in the storage unit 93 (S23). . Further, the second control unit 92b transmits the communication packet 80 storing the delete command 81, which is an instruction to delete the response data 51 stored in the storage unit 93, to the other control device 20b (S30). The other control device 20 b that has acquired the communication packet 80 deletes the response data 51 from the storage unit 98 according to the delete command 81.

  As described above, the control device 10b repeats the operations of S21 to S24 and S30 a predetermined number of times (loop C of S20 and S25). The control device 10b repeats the operations from S21 to S24, for example, once every minute for a total of 10 minutes (that is, 10 times). In addition, the frequency | count, the frequency, the kind of data, etc. which acquire the communication packet 70 are not specifically limited.

  The response unit 94 repeats the loop C of S20 and S25 a predetermined number of times, and then creates a communication packet 60 in which a plurality of response data 51 stored in the storage unit 93 are combined into one as shown in FIG. 3C. (S26). The response unit 94 transmits the communication packet 70 to the aggregation device 1 (S27). In addition, the frequency | count or frequency, etc. which produce the control apparatus 10b communication packet 70 and transmit to the aggregation apparatus 1 are not specifically limited.

  The control device 10b immediately transmits the urgent communication packet 70 to the aggregation device 1 (S24). Specifically, when the second control unit 92b acquires the urgent communication packet 70, the second control unit 92b discriminates the communication packet 70, and does not store the communication packet 70 in the storage unit 93. Send. The response unit 94 that has received the communication packet 70 immediately transmits the communication packet 70 to the aggregation device 1. The second control unit 92b stores the delete command 81 so that the response data 51 included in the urgent communication packet 70 that is not stored in the storage unit 93 is also deleted from the storage unit 98 to the other control device 20b. A communication packet 80 may be created and transmitted.

  FIG. 13 is a sequence diagram illustrating a characteristic processing procedure for transmitting the communication packet 40 to the aggregation device 1 in the control device 10b according to the third embodiment. A wireless communication system 100b illustrated in FIG. 13 includes a control device 10b and other control devices 20b to 22b. Although not shown in FIG. 13, the control device 10b shown in FIG. 1 corresponds to the control device 10b, and the other control devices 20-22 shown in FIG. 1 correspond to the other control devices 20b-22b. It is assumed that controlled devices 30 to 33 are connected to 10b and the other control devices 20b to 22b. In FIG. 13, operations similar to those in FIG. 12 are denoted by the same reference numerals as in FIG.

  As illustrated in FIG. 13, the other control devices 20 b to 22 b repeatedly obtain communication packets including the emergency flag and data 99 as response data 51 from the controlled devices 31 to 33 connected to the other control devices 20 b to 22 b. The urgency of the response data 51 is determined. When it is determined that the response data 51 is not urgent, the other control devices 20 b to 22 b store the response data 51 in the storage unit 98. The other control devices 20b to 22b repeat the above-described operation a predetermined number of times (S31). For example, the control device 10 repeats the operations from S21 to S24 once every minute for a total of 10 minutes (that is, 10 times). In addition, the frequency | count, the frequency, the kind of data, etc. which acquire the communication packet 70 are not specifically limited.

  Next, the other control devices 20b to 22b create a communication packet in which the response data 51 stored in the storage unit 98 is collected, and transmit the communication packet to the control device 10b (S21). The control device 10b determines the emergency flag 71 stored in the acquired communication packet (S22). When determining that there is no urgency, the control device 10b stores the response data 51 in the storage unit 93 (S23).

  Next, the control device 10b transmits the communication packet 80 including the delete command 81 to the other control devices 20b to 22b so as to delete the response data 51 stored in the storage unit 93 from the storage unit 98 (S30). The other control devices 20b to 22b that have acquired the delete command 81 delete the corresponding response data 51 from the storage unit 98 (S32). By doing so, it is possible to suppress the storage of similar response data 51 at a plurality of locations, and thus the compression of the capacity of the storage unit 98 is suppressed. Further, since the control device 10b transmits the delete command 81 after storing the response data 51 in the storage unit 93, the deletion is performed when the response data 51 is not transmitted from the other control devices 20b to 22b due to a communication abnormality. The command 81 is not transmitted. For this reason, the other control devices 20b to 22b are prevented from deleting the response data 51 by mistake.

  For example, it is assumed that the other control devices 20b to 22b determine that the response data 51, which is the data 99 acquired from the controlled devices 31 to 33, is urgent. In this case, the other control devices 20 b to 22 b immediately transmit the response data 51 to the control device 10 b without storing the response data 51 in the storage unit 98. FIG. 14 is a sequence diagram illustrating a specific example of a processing procedure when a communication packet that is determined to be urgent by another control device in the control device according to the third embodiment is acquired. In FIG. 14, a case where another control device 21b acquires a communication packet that is determined to be urgent from the controlled device 32 connected to the other control device 21b will be described. For this reason, in the sequence diagram of FIG. 14, only the aggregation device 1, the control device 10b, and the other control device 21b are described.

  As shown in FIG. 14, the other control device 21b acquires the communication packet 70 including the response data 51 and the emergency flag 71 from the controlled device 32 connected to the other control device 21b (S310). Here, the other control device 21b determines the emergency flag 71 (S311). It is assumed that the other control device 21b determines that the response data 51, which is the data 99 acquired from the controlled device 32, is urgent. The other control device 21b immediately transmits the response data 51 to the control device 10b without storing it in the storage unit 98 (S312). The control device 10b acquires the response data 51 (S21). The control device 10b determines the urgency of the acquired response data 51 (S22). Here, if the control device 10b determines that the response data 51 is urgent based on the presence or absence of the emergency flag, the control device 10b immediately transmits the response data 51 to the aggregation device 1 without storing the response data 51 in the storage unit 93. (S313).

  In the loop C of S20 and S25 of FIG. 12, the control device 10b determines the emergency flag 71 every time the response data 51 is acquired, stores the response data 51 when not emergency, and deletes the command 81 Was sent. On the other hand, in S21 to S23 of FIG. 13, the control device 10b acquires the response data 51 from each of the other control devices 20b to 22b, and then collectively determines the emergency flag 71. And the delete command 81 was transmitted. Although the operation of the control device 10b in FIG. 12 and FIG. 13 is different, any may be used and the operation is not limited.

(Summary)
As described above, the control device 10 according to the present embodiment includes the first control command for controlling the controlled device 30 that is the control target of the control device 10 and the control target of the other control devices 20 to 22. An acquisition unit 90 that acquires, by public wireless communication 4, a control communication packet (communication packet 40) that includes at least one of the second control commands for controlling. Moreover, the control apparatus 10 is provided with the 1st control part 91 which controls the to-be-controlled device 30 and acquires the 1st data which shows the result of the said control, when the acquisition part 90 acquires a 1st control command. In addition, when the acquisition unit 90 acquires the second control command, the control device 10 transmits the second control command to the other control devices 20 to 22 by the short-range wireless communication 5 and indicates a response to the transmission. A second control unit 92 that acquires data by the short-range wireless communication 5 is provided. In addition, the control device 10 includes a response unit 94 that transmits a response communication packet (communication packet 60) including first data and second data as a response to the control communication packet by the public wireless communication 4. As a result, the control device 10 performs communication using the public wireless communication 4 as well as the public wireless communication 4 originally performed by the other control devices 20 to 22. For this reason, the other control devices 20 to 22 do not need to perform the public wireless communication 4, and thus the number of times of communication using the public wireless communication 4 is suppressed. That is, the communication cost is suppressed. Further, since the public wireless communication 4 originally performed by the other control devices 20 to 22 is performed by the control device 10, the other control devices 20 to 22 include a modem 15 for connecting to the public wireless communication 4 and the public wireless I. / F12 becomes unnecessary. Therefore, the cost of the other control devices 20 to 22 is suppressed.

  The first data or the second data may include emergency information indicating whether the data should be transmitted urgently. Further, the response unit 94 may transmit the data by public wireless communication 4 when the emergency information included in the first data or the second data indicates that the data should be transmitted urgently. Further, the response unit 94 may thereafter transmit a response communication packet including data that does not indicate that the emergency information should be transmitted urgently by the public wireless communication 4. This makes it easier for the user to notice an abnormality in the controlled devices 30 to 33, so that it is possible to respond immediately to the abnormality.

  In addition, the control device 10 may include a storage unit 93. Further, the first control unit 91 may acquire the first data from the controlled device 30 and store it in the storage unit 93 even when the acquisition unit 90 has not acquired the first control command. Further, the second control unit 92 acquires and acquires the second data from the other control devices 20 to 22 by the short-range wireless communication 5 even when the acquisition unit 90 does not acquire the second control command. The second data may be stored in the storage unit 93. In addition, the response unit 94 may transmit a response communication packet in which a plurality of data stored in the storage unit 93 are collected by the public wireless communication 4. Thereby, since it becomes possible to acquire easily the data which the to-be-controlled devices 30-33 have, a user's workload is suppressed.

  In addition, when the second control unit 92b acquires the second data from the other control devices 20b to 22b, the second control unit 92b may store the acquired second data in the storage unit 93. Further, the second control unit 92b may transmit a delete command 81, which is an instruction to delete the second data, to the other control device by the short-range wireless communication 5. Thereby, since it is suppressed that the same response data 51 is preserve | saved at several places, the compression of the capacity | capacitance of the storage part 98 is suppressed. Further, since the control device 10b transmits the delete command after storing the response data 51 in the storage unit 93, the delete command is transmitted when the response data 51 is not transmitted from the other control devices 20b to 22b due to a communication error. Is not sent. Therefore, the other control devices 20 to 22b are prevented from erroneously deleting the response data 51.

  In addition, the wireless communication systems 100, 100a, and 100b according to the present embodiment include the control device 10 or 10b and the other control devices 20 to 22 or 20b to which the control device 10 or 10b and the short-range wireless communication 5 are connected. 22b. The radio communication systems 100, 100a, and 100b further include a controlled device 30 connected to the control device 10 or 10b. As a result, it is possible to reduce the number of devices in which the expensive modem 15 is installed, and the cost for communication is suppressed. Therefore, the cost concerning the whole radio | wireless communications system 100, 100a, and 100b is suppressed.

(Other embodiments)
The control device and the wireless communication system according to the embodiment of the present invention have been described above, but the present invention is not limited to the above embodiment.

  For example, in the second embodiment, the control device 10 and the other control devices 20 to 22 determine the emergency flag 71 stored in the communication packet 70 created by the controlled devices 30 to 33, thereby determining the response data 51. The urgency was determined, but this is not the case. An index for determining the urgency of the response data 51 is stored in the storage unit 93 in advance, and the first control unit 91 and the second control unit 92 determine the urgency by determining the response data 51 according to the index. You may go.

  In the second and third embodiments, the case where the timings of the response data transmitted from the other control devices to the control device are substantially the same, but the response data transmitted from the other control devices to the control device has been described. The timing is not limited. The response data transmitted from other control devices may be transmitted at different timings.

  Although the control device and the wireless communication system according to one or more aspects have been described based on the embodiment, the present invention is not limited to this embodiment. Unless it deviates from the gist of the present invention, various modifications conceived by those skilled in the art have been made in this embodiment, and forms constructed by combining components in different embodiments are also within the scope of one or more aspects. May be included.

  The present invention can be applied to a control device and a wireless communication system for remotely monitoring and controlling a device such as an FA device or a vending machine using public wireless communication.

1 Aggregation device 2 LAN
3 Router 4 Public wireless communication (Internet)
5 Near field communication 10, 10b Control device 11 CPU
12 Public wireless I / F
13 Short-range wireless I / F
14 Device connection I / F
15 Modem 16 Memory 17 RTC
20, 21, 22, 20b, 21b, 22b Other control device 30, 31, 32, 33 Controlled device 40, 50, 60, 70, 80 Communication packet 41 IP header 42 TCP header 43 Device identifier 44 Control command 51 Response Data 71 Emergency flag 81 Delete command 90 Acquisition unit 91 First control unit 92, 92b Second control unit 93 Storage unit 94 Response unit 98 Storage unit 99 Data 100, 100a, 100b Wireless communication system

Claims (5)

A control device,
A control communication packet including at least one of a first control command for controlling a controlled device that is a control target of the control device and a second control command for controlling a control target of another control device is transmitted to the public. An acquisition unit for acquiring by wireless communication;
When the acquisition unit acquires the first control command, the first control unit that controls the controlled device and acquires first data indicating a result of the control;
When the acquisition unit acquires the second control command, the second control command is transmitted to the other control device by short-range wireless communication, and second data indicating a response to the transmission is transmitted by the short-range wireless communication. A second control unit to acquire;
As a response to the control communication packet, a response communication packet including the first data and the second data is transmitted by public wireless communication.
A control device comprising: The first data or the second data includes emergency information indicating whether the data should be urgently transmitted,
The response unit further includes:
When the emergency information included in the first data or the second data indicates that the data should be urgently transmitted, the data is transmitted by public wireless communication,
The control device according to claim 1, wherein a response communication packet including data that does not indicate that the emergency information should be transmitted urgently is transmitted by public wireless communication. The control device further includes a storage unit,
The first control unit further includes:
Even when the acquisition unit has not acquired the first control command, the first data is acquired from the controlled device and stored in the storage unit,
The second control unit further includes:
Even when the acquisition unit has not acquired the second control command, the second data is acquired from the other control device by the short-range wireless communication, and the acquired second data is stored in the storage unit. Let
The response unit further includes:
The control device according to claim 1, wherein a response communication packet in which a plurality of data stored in the storage unit is collected is transmitted by public wireless communication. The second controller is
When the second data is acquired from the other control device, the acquired second data is stored in the storage unit, and a delete command that is an instruction to delete the second data is sent to the other control device. The control device according to claim 3, which transmits by the short-range wireless communication. The control device according to any one of claims 1 to 4,
The other control device connected to the control device by short-range wireless communication;
The controlled device connected to the control device,
Wireless communication system.

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