WO2019180761A1 - Dispositif de relais, système de communication, procédé de communication et programme - Google Patents

Dispositif de relais, système de communication, procédé de communication et programme Download PDF

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Publication number
WO2019180761A1
WO2019180761A1 PCT/JP2018/010699 JP2018010699W WO2019180761A1 WO 2019180761 A1 WO2019180761 A1 WO 2019180761A1 JP 2018010699 W JP2018010699 W JP 2018010699W WO 2019180761 A1 WO2019180761 A1 WO 2019180761A1
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WO
WIPO (PCT)
Prior art keywords
communication
adapter
frame
communication method
connection means
Prior art date
Application number
PCT/JP2018/010699
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English (en)
Japanese (ja)
Inventor
遠藤　弘明
正裕 石原
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to JP2020508105A priority Critical patent/JPWO2019180761A1/ja
Priority to PCT/JP2018/010699 priority patent/WO2019180761A1/fr
Publication of WO2019180761A1 publication Critical patent/WO2019180761A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Definitions

  • the present invention relates to a relay device, a communication system, a communication method, and a program.
  • HEMS Home Energy Management System
  • each home appliance is generally connected to the network via a communication adapter.
  • communication adapters for example, Patent Document 1.
  • ECHONET Lite which is a communication standard adopted by HEMS
  • a communication method (hereinafter referred to as a first communication method) between a communication adapter and home appliances is defined.
  • this first communication method it is currently premised that one communication adapter is connected to one home appliance.
  • the present invention has been made to solve the above-described problem, and enables relaying that enables connection between a plurality of devices including devices compatible with the first communication method and a communication adapter compatible with the second communication method.
  • An object is to provide a device or the like.
  • a relay device provides: Adapter connection means connected to a communication adapter that communicates with a second communication method that is a communication method newer than the first communication method; A plurality of device connection means connected to a plurality of devices; Communication method acquisition means for acquiring a communication method from each device connected to each of the plurality of device connection means;
  • the first communication frame is received from the first device via device connection means connected to the first device.
  • the first communication frame is converted into a second communication frame of the second communication method, transmitted to the communication adapter via the adapter connection means, and from the communication adapter to the first communication via the adapter connection means.
  • the third communication frame for the device is received, the third communication frame is converted into a fourth communication frame of the first communication method, and the first device is connected to the first device via the device connection means connected to the first device.
  • Communication means for transmitting is
  • the present invention it is possible to connect a plurality of devices including a device compatible with the first communication method and a communication adapter compatible with the second communication method.
  • the block diagram which shows the hardware constitutions of the control apparatus which concerns on this Embodiment The figure which shows an example of the format of the communication frame corresponding to a 1st communication system in this Embodiment.
  • the block diagram which shows the hardware constitutions of the relay apparatus which concerns on this Embodiment The block diagram which shows the hardware constitutions of the control circuit with which the relay apparatus which concerns on this Embodiment is provided
  • the flowchart which shows the procedure of the frame relay process (the 1) which the relay apparatus which concerns on this Embodiment performs The flowchart which shows the procedure of the frame relay process (the 2) which the relay apparatus which concerns on this Embodiment performs
  • FIG. 1 is a diagram showing an overall configuration of an energy management system including a communication system 1 according to an embodiment of the present invention.
  • This energy management system is a so-called HEMS (Home Energy Management ⁇ System) that manages electric power used in general households.
  • the energy management system includes a communication system 1 including a relay device 2 and a communication adapter 3, a control device 4, an operation terminal 5, and devices 6a to 6c.
  • the control device 4 is installed at an appropriate location in the house H, and controls the energy management system in an integrated manner. As shown in FIG. 2, the control device 4 includes a processor 40, a communication interface 41, a ROM (Read Only Memory) 42, a RAM (Random Access Memory) 43, and a secondary storage device 44. These components are connected to each other via a bus 45.
  • the processor 40 controls the control device 4 in an integrated manner.
  • the communication interface 41 includes a network card for wirelessly communicating with the communication adapter 3 via a wireless network (not shown) constructed in the house H.
  • This wireless network is, for example, a network conforming to ECHONET Lite.
  • the communication interface 41 includes a network card for wireless communication or wired communication with the operation terminal 5.
  • the ROM 42 stores a plurality of firmware and data used when executing these firmwares.
  • the RAM 43 is used as a work area for the processor 40.
  • the secondary storage device 44 includes an EEPROM (Electrically-Erasable Programmable-Read-Only Memory), a readable / writable nonvolatile semiconductor memory such as a flash memory, or an HDD (Hard Disk Drive).
  • the secondary storage device 44 stores one or a plurality of programs for managing the power consumed at home and data used when each program is executed.
  • the operation terminal 5 is a smart device such as a smartphone or a tablet terminal including an input device such as a push button, a touch panel, a touch pad, a display device such as an organic EL display or a liquid crystal display, and a communication interface.
  • the operation terminal 5 communicates with the control device 4 in accordance with a well-known communication standard such as Wi-Fi (registered trademark), Wi-SUN (registered trademark), or wired LAN.
  • the operation terminal 5 receives an operation from the user and transmits information indicating the received operation content to the control device 4. Further, the operation terminal 5 receives the information transmitted from the control device 4 and presented to the user, and displays the received information.
  • the operation terminal 5 plays a role as an interface (so-called user interface) with the user.
  • the devices 6a to 6c are home appliances installed in the house H (including the site).
  • the devices 6a to 6c include, for example, an air conditioner, an illuminator, a floor heating system, a floor cooling / heating system, a refrigerator, an IH (Induction Heating) cooker, a television, a water heater, and the like.
  • the devices 6a to 6c are connected to the above-described wireless network via the relay device 2 and the communication adapter 3.
  • the control device 4 can control the operation of the devices 6a to 6c and acquire desired information from the devices 6a to 6c.
  • the devices 6a and 6b communicate with the relay device 2 using the first communication method
  • the device 6c communicates with the relay device 2 using the second communication method that is a communication method newer than the first communication method. That is, the devices 6a and 6b are examples of the first device according to the present invention.
  • the communication adapter 3 communicates with the relay device 2 by the second communication method.
  • the first communication method is a communication method on the premise that one communication adapter is connected to one home appliance, and a communication frame of the format shown in FIG. 3 is used for communication between the home appliance and the communication adapter. It is done.
  • “STX” is an area in which the head code is stored. Specifically, “STX” stores a fixed value (for example, 0x02) indicating the first communication method.
  • “CN” is an area in which the type of command is stored. The command type includes, for example, information request, information request response, information setting, information setting response, and the like.
  • “DL” is an area in which the data length, that is, the size of data stored in “FD” is stored.
  • FD is an area in which data corresponding to the type of command is stored. For example, when the command type is information request, “FD” stores a property number indicating the requested information. When the command type is an information request response, “FD” stores data indicating the requested information.
  • FCC is an area in which a frame check code is stored. “FCC” stores, for example, the two's complement of the sum of “CN” to “FD”. The home appliance or communication adapter that has received the communication frame checks the frame check code to determine whether or not there is an error in the content of the communication frame.
  • the second communication method is a communication method in which a plurality of home appliances are connected to one communication adapter, and a communication frame in the format shown in FIG. 4 is used for communication between the home appliance and the communication adapter.
  • “STX” is an area in which the head code is stored. Specifically, “STX” stores a fixed value (for example, 0x03) indicating the second communication method. “DA” is an area in which data indicating the transmission destination of the communication frame is stored. “SA” is an area in which data indicating the transmission source of the communication frame is stored. For example, when the address of the communication adapter is “0x00”, the address of the home appliance is “0x01”, and a communication frame is transmitted from the communication adapter to the home appliance, the “DA” of the communication frame includes “0x01”. “Is stored, and” 0x00 "is stored in” SA ". “CN”, “DL”, “FD”, and “FCC” are the same as those in the first communication method.
  • the relay device 2 includes device connection units 20a to 20c, an adapter connection unit 21, and a control circuit 22.
  • the device connection portions 20a to 20c and the adapter connection portion 21 are all the same type connectors having five terminals.
  • the device connection units 20a to 20c are an example of a plurality of device connection means according to the present invention.
  • the adapter connection unit 21 is an example of adapter connection means according to the present invention.
  • the device connection unit 20a and the control circuit 22 are connected via a signal line 23a including a signal transmission line, a signal reception line, a ground line, and a pull-up voltage line (5V) of the signal line.
  • the device connection unit 20b and the control circuit 22 are connected via a signal line 23b
  • the device connection unit 20c and the control circuit 22 are connected via a signal line 23c
  • the adapter connection unit 21 and the control circuit 22 are connected to each other.
  • a signal line 23d are connected via a signal line 23d.
  • the device connection unit 20a, the control circuit 22, and the adapter connection unit 21 are connected via a power line 24 that transmits power from the device 6 connected to the device connection unit 20a. That is, the relay device 2 and the communication adapter 3 are supplied with power from the home appliance (any of the devices 6a to 6c) connected to the device connection unit 20a.
  • the power line 24 is an example of a power transmission unit according to the present invention.
  • the control circuit 22 includes a processor 220, a ROM 221, a RAM 222, and a secondary storage device 223. These components are connected to each other via a bus 224.
  • the processor 220 controls the relay device 2 in an integrated manner. Details of the functions of the relay apparatus 2 realized by the processor 220 will be described later.
  • the ROM 221 stores a plurality of firmware and data used when executing these firmware.
  • the RAM 222 is used as a work area for the processor 220.
  • the secondary storage device 223 is composed of a readable / writable nonvolatile semiconductor memory such as an EEPROM or a flash memory.
  • the secondary storage device 223 includes various programs including a program for relaying a communication frame exchanged between each of the devices 6a to 6c and the communication adapter 3 (hereinafter referred to as a relay program), Data used at runtime is stored.
  • the relay apparatus 2 functionally includes a communication method acquisition unit 200, a device object acquisition unit 201, and a frame relay unit 202 as shown in FIG. These functional units are realized by the processor 220 executing the relay program stored in the secondary storage device 223.
  • the communication method acquisition unit 200 is an example of a communication method acquisition unit according to the present invention.
  • the communication method acquisition unit 200 negotiates with the communication adapter 3 connected to the adapter connection unit 21 and the devices 6a to 6c connected to the device connection units 20a to 20c.
  • Communication information including a communication speed and a communication method is acquired from each of 6a to 6c.
  • the communication method acquisition unit 200 monitors the pull-up voltages of the signal lines 23a to 23c of the device connection units 20a to 20c, and narrows down only to the device connection unit 20 in which a predetermined voltage (5 V) is detected.
  • the above negotiation may be performed.
  • the communication method acquisition unit 200 allocates addresses to the devices 6a to 6c.
  • the address is determined according to the device connection unit 20 to which each device 6 is connected.
  • 0x01 is assigned to the device 6a connected to the device connection unit 20a
  • 0x02 is assigned to the device 6b connected to the device connection unit 20b, and is connected to the device connection unit 20c.
  • 0x03 is allocated to the device 6c.
  • the communication method acquisition unit 200 generates, for each device connection unit 20, information that associates the address of the device 6 to be connected with the communication information described above, and stores the information in the secondary storage device 223.
  • the device object acquisition unit 201 acquires device object data from each of the devices 6a to 6c when the negotiation by the communication method acquisition unit 200 is completed.
  • the device object data is data including unique information and operable control items for the device 6.
  • the device object acquisition unit 201 transmits data in which each acquired device object data is associated with the address of the device 6 to the communication adapter 3 via the adapter connection unit 21.
  • a series of processing by the communication method acquisition unit 200 and the device object acquisition unit 201 is referred to as start-up processing of the relay device 2.
  • the frame relay unit 202 is an example of communication means according to the present invention.
  • the frame relay unit 202 receives a communication frame from any one of the devices 6a to 6c via the corresponding device connection unit 20 after completion of the above startup processing, the frame relay unit 202 transmits the received communication frame via the adapter connection unit 21.
  • the frame relay unit 202 converts the received communication frame into a communication frame of the second communication method, and communicates the converted communication frame. Send to adapter 3.
  • the frame relay unit 202 changes “STX” of the received communication frame from 0x02 to 0x03, and joins “DA” and “SA”.
  • “DA” stores 0x03 which is the address of the communication adapter 3.
  • SA the address (0x01 or 0x02) of the transmission source device 6 is stored.
  • a communication frame (an example of the first communication frame according to the present invention) corresponding to the first communication method received from the device 6a or the device 6b (that is, the first device) becomes a communication frame (this book) of the second communication method.
  • the frame relay unit 202 transfers the received communication frame to the communication adapter 3 via the adapter connection unit 21 without processing the received communication frame.
  • the frame relay unit 202 When the frame relay unit 202 receives a communication frame from the communication adapter 3 via the adapter connection unit 21 after completion of the start-up process, the frame relay unit 202 transmits the communication frame to the device 6 indicated by “DA” of the communication frame. Is transmitted via the corresponding device connection unit 20. At this time, if the destination device 6 is compatible with the first communication method, the frame relay unit 202 converts the received communication frame into a communication frame of the first communication method, and converts the converted communication frame into the device. 6 to send. Specifically, the frame relay unit 202 removes “DA” and “SA” from the received communication frame, and further changes “STX” from 0x03 to 0x02. Thereby, a communication frame (an example of the third communication frame according to the present invention) corresponding to the second communication method received from the communication adapter 3 is converted into a communication frame of the first communication method (an example of the fourth communication frame according to the present invention). ).
  • the frame relay unit 202 transfers the received communication frame to the device 6 via the corresponding device connection unit 20 without processing the received communication frame.
  • FIG. 8 and 9 are flowcharts showing the procedure of the frame relay process executed by the relay device 2 (specifically, the frame relay unit 202) after the start-up process is completed.
  • FIG. 8 shows frame relay processing when a communication frame is received from the communication adapter 3
  • FIG. 9 shows frame relay processing when a communication frame is received from any of the devices 6a to 6c.
  • the frame relay unit 202 refers to “DA” in the received communication frame, identifies the corresponding device connection unit 20, and identifies the communication method corresponding to the identified device connection unit 20. In other words, the frame relay unit 202 specifies a communication method corresponding to the transmission destination device 6 (step S101). If the destination device 6 is compatible with the first communication method (step S102; YES), the frame relay unit 202 converts the received communication frame into a communication frame of the first communication method as described above (step S103). ). Then, the frame relay unit 202 transmits the communication frame converted through the identified device connection unit 20 to the transmission destination device 6 (step S104).
  • the frame relay unit 202 performs the transmission via the specified device connection unit 20 without processing the received communication frame. Transfer to the previous device 6 (step S105).
  • the frame relay unit 202 identifies a communication method corresponding to the device connection unit 20 that has received the communication frame. In other words, the frame relay unit 202 identifies a communication method corresponding to the transmission source device 6 of the received communication frame (step S201).
  • the frame relay unit 202 converts the received communication frame into a communication frame of the second communication method as described above (step S203). ). Then, the frame relay unit 202 transmits the converted communication frame to the communication adapter 3 via the adapter connection unit 21 (step S204).
  • step S202 when the transmission source device 6 is compatible with the second communication method (step S202; NO), the frame relay unit 202 transmits the received communication frame to the communication adapter 3 via the adapter connection unit 21. Transfer (step S205).
  • a plurality of home appliances (devices 6a and 6b) corresponding to the first communication method on the assumption that one communication adapter is connected to one home appliance.
  • a communication adapter 3 compatible with the second communication method in which a plurality of household electrical appliances can be connected to one communication adapter.
  • the relay device 2 can be connected to the three devices 6, but it may be configured to be connectable to a plurality of devices 6, and the number is not limited.
  • the method of converting the communication frame by the relay device 2 according to the above embodiment is also only It is an example.
  • the conversion from the first communication frame to the second communication frame and the conversion from the third communication frame to the fourth communication frame correspond to the formats of the first communication method and the second communication method.
  • Various techniques can be employed.
  • control device 4 may further include at least one of an input device for receiving an operation from the user and a display device for presenting information to the user.
  • the communication adapter 3 may be provided with a communication interface for connecting to the Internet via a broadband router (not shown) installed in the house H and communicate with a cloud server (not shown).
  • each functional unit (see FIG. 7) of the relay device 2 is realized by the processor 220 executing the relay program stored in the secondary storage device 223.
  • all or part of the functional units of the relay device 2 may be realized by dedicated hardware.
  • the dedicated hardware is, for example, a single circuit, a composite circuit, a programmed processor, an ASIC (Application Specific Integrated ⁇ Circuit), an FPGA (Field-Programmable Gate Array), or a combination thereof.
  • the above relay program includes CD-ROM (Compact Disc Read Only Memory), DVD (Digital Versatile Disc), magneto-optical disc (Magneto-Optical Disc), USB (Universal Serial Bus) memory, memory card, HDD, etc. It can be stored in a computer-readable recording medium and distributed.
  • CD-ROM Compact Disc Read Only Memory
  • DVD Digital Versatile Disc
  • magneto-optical disc Magnetic-Optical Disc
  • USB Universal Serial Bus
  • the relay program may be stored in a disk device or the like of a server on a network such as an intranet or the Internet, and the relay program may be downloaded to the relay device 2 from this server.
  • the present invention can be suitably employed in a system in which various devices and control devices are connected via a network.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Selective Calling Equipment (AREA)

Abstract

Selon l'invention, une unité de connexion d'adaptateur (21) est connectée à un adaptateur de communication qui effectue une communication par un deuxième système de communication en tant que système de communication plus récent qu'un premier système de communication. Une pluralité d'unités de connexion de dispositif (20a à 20c) sont connectées chacune à un dispositif d'une pluralité de dispositifs. Un circuit de commande (22) acquiert les systèmes de communication auprès de chaque dispositif de la pluralité de dispositifs. Lors de la réception d'une première trame de communication en provenance d'un premier dispositif correspondant au premier système de communication parmi la pluralité de dispositifs, le circuit de commande (22) convertit la première trame de communication en une deuxième trame de communication du deuxième système de communication et transmet la deuxième trame de communication à l'adaptateur de communication. Lors de la réception d'une troisième trame de communication relative au premier dispositif en provenance de l'adaptateur de communication, le circuit de commande (22) convertit la troisième trame de communication en une quatrième trame de communication du premier système de communication et transmet la quatrième trame de communication au premier dispositif.
PCT/JP2018/010699 2018-03-19 2018-03-19 Dispositif de relais, système de communication, procédé de communication et programme WO2019180761A1 (fr)

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JP2020508105A JPWO2019180761A1 (ja) 2018-03-19 2018-03-19 中継装置、通信システム、通信方法及びプログラム
PCT/JP2018/010699 WO2019180761A1 (fr) 2018-03-19 2018-03-19 Dispositif de relais, système de communication, procédé de communication et programme

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PCT/JP2018/010699 WO2019180761A1 (fr) 2018-03-19 2018-03-19 Dispositif de relais, système de communication, procédé de communication et programme

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
JPWO2021234820A1 (fr) * 2020-05-19 2021-11-25
WO2022172378A1 (fr) * 2021-02-10 2022-08-18 三菱電機株式会社 Adaptateur de communication, procédé de communication et programme

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JP2006171949A (ja) * 2004-12-14 2006-06-29 Sharp Corp 電気機器、および電気機器に接続可能な通信アダプタ
JP2006229422A (ja) * 2005-02-16 2006-08-31 Sharp Corp 電気機器、および電気機器に接続可能な通信アダプタ
JP2014179783A (ja) * 2013-03-14 2014-09-25 Toshiba Lighting & Technology Corp 電気機器および通信装置
JP2017112408A (ja) * 2015-12-14 2017-06-22 株式会社テイエルブイ 互いに異なる通信方式を有する装置間の中継機器及びその中継機器における制御方法
JP2017142652A (ja) * 2016-02-10 2017-08-17 三菱電機株式会社 通信装置、通信システム、通信方法及びプログラム

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Publication number Priority date Publication date Assignee Title
JP2006171949A (ja) * 2004-12-14 2006-06-29 Sharp Corp 電気機器、および電気機器に接続可能な通信アダプタ
JP2006229422A (ja) * 2005-02-16 2006-08-31 Sharp Corp 電気機器、および電気機器に接続可能な通信アダプタ
JP2014179783A (ja) * 2013-03-14 2014-09-25 Toshiba Lighting & Technology Corp 電気機器および通信装置
JP2017112408A (ja) * 2015-12-14 2017-06-22 株式会社テイエルブイ 互いに異なる通信方式を有する装置間の中継機器及びその中継機器における制御方法
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Publication number Priority date Publication date Assignee Title
JPWO2021234820A1 (fr) * 2020-05-19 2021-11-25
WO2021234820A1 (fr) * 2020-05-19 2021-11-25 三菱電機株式会社 Appareil, appareil de réseau et procédé d'exécution d'instructions
JP7267505B2 (ja) 2020-05-19 2023-05-01 三菱電機株式会社 機器、ネットワーク機器及びコマンド実行方法
WO2022172378A1 (fr) * 2021-02-10 2022-08-18 三菱電機株式会社 Adaptateur de communication, procédé de communication et programme
JP7383183B2 (ja) 2021-02-10 2023-11-17 三菱電機株式会社 通信アダプタ、通信制御方法及びプログラム

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