JP6040427B2 - Gateway device - Google Patents

Description

  The present invention relates to a gateway device connected to a plurality of network management servers.

  Conventionally, various gateway devices used in a wireless communication network system that constructs an ad hoc wireless network based on a wireless communication standard such as ZigBee (registered trademark) have been proposed (for example, Patent Document 1).

  Similarly, various gateway devices used in a wired communication system using a field bus called CC-Link (Control & Communication Link) have also been proposed (for example, Patent Document 2).

JP 2010-177895 A JP 2009-77194 A

  However, in the conventional gateway device, there is a problem that it is difficult to rationally connect without sacrificing the features of both the wireless communication network that constructs the above-described ad hoc wireless network and the wired communication network using the fieldbus. there were.

  Specifically, for example, a wireless communication network that constructs an ad hoc wireless network and a wired communication network that uses a fieldbus have different communication rules in each communication network, so it is difficult to smoothly connect both communication networks. There was a problem of being.

  In particular, since a wired communication network using a fieldbus is already widely used, an ad hoc wireless network can be adapted to the characteristics of the wired communication network without changing the configuration of the wired communication network using the fieldbus. It is desired that a wireless communication network to be constructed can be smoothly connected to a wired communication network.

  In order to solve the above problems, an object of the present invention is to provide a gateway device that can smoothly connect a wireless communication network to a wired communication network in accordance with the characteristics of the wired communication network.

The gateway device of the present invention has a wireless communication controller that controls a wireless communication network including a plurality of wireless devices to which wireless device addresses indicating wireless device addresses are assigned, and wired device addresses that indicate addresses for wired devices. A wireless communication network that is connected to a wired communication controller that controls a wired communication network including a plurality of wired devices, and includes a wireless device address assigned to the wireless device and wireless device data generated by the wireless device A wireless communication network origin data receiving means for receiving origin data via the wireless communication controller; and a wireless communication network origin data included in the wireless communication network origin data without changing the data content of the wireless communication network origin data. Wired communication network utilization data generating means for converting a device address into a wired device address and generating wired communication network utilization data usable in the wired communication network from the wireless communication network origin data, and the wired communication network utilization data a wired communication network usage data generated by the generation means viewed contains a wired communication network utilization data transmitting means for transmitting to the wired communication controller, the wired communication network usage data includes wired device address assigned to the wired device The wired communication network origin data including the wired device data generated by the wired device, and the wired communication network utilization data generating means includes the wired communication network utilization data. The wireless communication device stores the wireless device address in the storage area of the wired device address in the data format of the wireless data, and stores the wireless device data in the storage area of the wired device data. generated and characterized in that.

  With the above configuration, the wireless communication network can be smoothly connected to the wired communication network in accordance with the characteristics of the wired communication network.

  Wired communication network origin data receiving means for receiving wired communication network origin data including a wired device address assigned to the wired device and wired device data generated by the wired device via the wired communication controller; Without changing the data content of the wired communication network origin data, the wired device address included in the wired communication network origin data can be converted into a wireless device address and used from the wired communication network origin data in the wireless communication network Wireless communication network utilization data generating means for generating wireless communication network utilization data, and transmitting the wireless communication network utilization data generated by the wireless communication network utilization data generating means to the wireless communication controller. To may be configured to include a wireless communication network utilizing the data transmission means. In such a configuration, communication between the wireless communication network and the wired communication network can be mutually converted according to the characteristics of each network.

  The wireless communication network usage data has the same data configuration as wireless communication network origin data including a wireless device address assigned to the wireless device and wireless device data generated by the wireless device, The communication network usage data generating means stores the wired device address in the storage area of the wireless device address in the data format of the wireless communication network usage data, and stores the wired device data in the storage area of the wireless device data. The wireless communication network usage data may be generated from communication network origin data.

  The gateway device of the present invention includes a wireless communication controller that controls a wireless communication network including a plurality of wireless devices to which wireless device addresses indicating wireless devices are assigned, and a wired device address that indicates an address for the wired device. A wireless communication device that is connected to a wired communication controller that controls a wired communication network including a plurality of wired devices to which the wireless device is assigned, and includes a wireless device address assigned to the wireless device and wireless device data generated by the wireless device Radio communication network origin data receiving means for receiving communication network origin data via the radio communication controller, and included in the radio communication network origin data without changing the data content of the radio communication network origin data A wired communication network utilization data generating means for converting a wireless device address to a wired device address and generating the wired communication network utilization data usable in the wired communication network from the wireless communication network origin data; and the wired communication network Wired communication network utilization data transmitting means for transmitting the wired communication network utilization data generated by the utilization data generating means to the wired communication controller, a wired device address assigned to the wired device, and a wired generated by the wired device A wired communication network origin data receiving means for receiving the wired communication network origin data including device data via the wired communication controller, and changing data contents of the wired communication network origin data. A wireless communication network that converts a wired device address included in the wired communication network origin data into a wireless device address, and generates wireless communication network utilization data that can be used in the wireless communication network from the wired communication network origin data Use data generation means, and wireless communication network use data transmission means for transmitting the wireless communication network use data generated by the wireless communication network use data generation means to the wireless communication controller, wherein the wireless communication network use data is: The wireless communication network origin data includes the wireless device address assigned to the wireless device and the wireless device data generated by the wireless device, and the wireless communication network has the same data configuration. The network usage data generation means stores the wired device address in the storage area of the wireless device address in the data format of the wireless communication network usage data, and stores the wired device data in the storage area of the wireless device data. The wireless communication network usage data is generated from communication network origin data.
  The gateway device of the present invention includes a wireless communication controller that controls a wireless communication network including a plurality of wireless devices to which wireless device addresses indicating wireless devices are assigned, and a wired device address that indicates an address for the wired device. A wireless communication device that is connected to a wired communication controller that controls a wired communication network including a plurality of wired devices to which the wireless device is assigned, and includes a wireless device address assigned to the wireless device and wireless device data generated by the wireless device Radio communication network origin data receiving means for receiving communication network origin data via the radio communication controller, and included in the radio communication network origin data without changing the data content of the radio communication network origin data A wired communication network utilization data generating means for converting a wireless device address to a wired device address and generating the wired communication network utilization data usable in the wired communication network from the wireless communication network origin data; and the wired communication network A wired communication network utilization data transmitting means for transmitting the wired communication network utilization data generated by the utilization data generating means to the wired communication controller, and the wired communication network is constructed by a digital communication system using a fieldbus. A communication network, the wireless communication network is an ad hoc wireless network, and the wired device address is a station number fixedly assigned to each wired device in the wired communication network. The wireless device address is an address fixedly assigned to each wireless device in the wireless communication network, and includes a station number assigned to the gateway device in the same manner as each wired device. It is an address.

  According to the present invention, a wireless communication network can be smoothly connected to a wired communication network according to the characteristics of the wired communication network.

It is a block diagram which shows the example of a structure of a gateway system. It is a block diagram which shows the example of a structure of a gateway apparatus. It is a flowchart which shows the example of a gateway process.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing an example of the configuration of a gateway system 300 showing an embodiment of the present invention. As shown in FIG. 1, the gateway system 300 includes a wireless communication network 50, a digital communication network 150, and a gateway device 200 connected to the wireless communication network 50 and the digital communication network 150.

  The wireless communication network 50 includes a wireless communication controller 10, a plurality of measurement units 21 to 24, and a relay unit 40. Any number of measurement units may be provided. A plurality of wireless communication controllers 10 and relay units 40 may be provided. In addition, the wireless communication network 50 includes a control unit and a measurement / control unit as appropriate (not shown).

  Each of the measurement units 21 to 24 includes various sensors (for example, a radiation sensor for measuring radiation, a wind direction / anemometer, a rain gauge, etc., not shown), wireless communication terminals 31 to 34, and a battery (not shown). Z.). Each of the wireless communication terminals 31 to 34 is a network distributed cell computer (NICE) in an ad hoc wireless network, and has various signal input / output functions and ZigBee wireless network linkage functions. The wireless communication terminals (or ad hoc wireless communication terminals) 31 to 34 are high performance, small size, low cost, and low power consumption measurement control computers, respectively, and function as distributed nodes in the ad hoc wireless network. In this example, the wireless communication terminals 31 to 34 are configured to be driven (operated) by a battery, such as an amplifier (AMP), a DC / DC converter (DC / DC), and a PMRLY (PhotoMOS relay). Is provided. That is, each of the wireless communication terminals 31 to 34 includes various devices for performing power control of various sensors, transmission / reception of measurement signals, and the like, using electric power supplied from a battery included therein. In addition, since a general thing is used about an amplifier etc., detailed description here is abbreviate | omitted.

  Each sensor is a low power type that can be driven by a small battery such as a dry cell. For example, in the case of a radiation sensor, a small ionization chamber type radiation survey meter is suitable. In this example, each of the measurement units 21 to 24 performs measurement of a measurement target (for example, radiation dose) using various sensors for each preset time.

  Each of the wireless communication terminals 31 to 34 is preferably capable of long-distance communication and low power consumption. In this example, the case where ZigBee (registered trademark) communication is employed for communication performed by the wireless communication terminals 31 to 34 will be described as an example.

  Each of the wireless communication terminals 31 to 34 functions as an independent measurement / control node by connecting a sensor or the like. However, by attaching to an existing facility or the like, the facility or the like can be brought online. . Each of the wireless communication terminals 31 to 34 of this example is designed to operate only with a few kilobytes of RAM built in the microcomputer, which is the main component, for the purpose of reducing component costs and power consumption. Depending on the application, a wired communication port such as RS232C, CAN, 1-Wire (registered trademark) may be provided, and if there is no problem of component cost and power consumption, an external storage device such as a microSD memory may be installed. It is good also as a specification to provide.

  As long as the battery has an amount of power that can drive the measurement units 21 to 24, a battery that is as small as possible and has a large amount of stored electricity is suitable. Specifically, an alkaline dry battery, an oxyride battery, a rechargeable lithium ion storage battery, a nickel hydride storage battery, a nickel cadmium storage battery, or the like can be used as the battery.

  In addition, a communication relay function may be added to at least one of the measurement units 21 to 24 to function as a “measurement / relay unit”.

  In addition, it is good also as a structure which adds a natural energy power generation device to the measurement units 21-24. In this case, it is preferable that the battery with which the measurement units 21-24 are provided is a storage battery. In addition, the natural energy power generation apparatus can use a solar power generation apparatus, a wind power generation apparatus, a vibration power generation apparatus, etc. as appropriate, but has a power generation capability that can drive the measurement unit without receiving an electric supply from an external power source. It is preferable to have. Therefore, a solar power generation device is preferable because it is relatively inexpensive and has high power generation capability.

  The wireless communication controller 10 is configured by an information processing device such as a WWW server or a ZigBee coordinator, and is responsible for most of the management functions of the wireless communication network 50. The wireless communication controller 10 is managed by an administrator of the gateway system 300, for example. The wireless communication controller 10 is only required to have a relatively simple information processing function such as connection (survival) management and address management of wireless devices (measurement units 21 to 24), and is not necessarily a WWW server. There is no need to include complex mechanisms.

  In this example, the wireless communication controller 10, the plurality of measurement units 21 to 24, and the relay unit 40 constitute a wireless communication network 50 based on an ad hoc wireless network (in this example, a ZigBee wireless network). The format of the communication network in the wireless communication network 50 is not particularly limited, and may be a general format such as a mesh format, a star format, or a tree format.

  The wireless communication controller 10 is an information processing apparatus that functions as a management node in an ad hoc wireless network. The wireless communication controller 10 has a data transmission / reception function for executing various communication processes, a data registration function for executing a process for registering data acquired in the communication process in a predetermined storage area, and the measurement units 21 to 24. Measurement data transmission instruction function for performing measurement data transmission instruction (or transmission request) processing and the like, and a measurement data DB for storing measurement data (radiation dose, wind direction, air flow, etc.) received from the measurement units 21 to 24 ( (Not shown).

  The radio communication controller 10 uses the measurement data transmission instruction function, for example, for all or a specific measurement unit, for example, a measurement frequency of radiation dose or the like (for example, once every 10 minutes, once every 60 seconds) Etc.) and processing for giving an instruction regarding the transmission frequency of measurement data. Specifically, the wireless communication controller 10 uses the measurement data transmission instruction function, for example, according to an operation by the user of the wireless communication controller 10 (or the administrator of the gateway system 300), the radiation dose measurement frequency or the measurement data transmission frequency. The measurement setting information which shows is created, the process etc. which transmit the created measurement setting information to each of the measurement units 21-24 are performed.

  The wireless communication controller 10 manages the operation of all the wireless communication terminals 31 to 34 linked to the ZigBee wireless network, and receives data such as sensor information from the plurality of wireless communication terminals 31 to 34 (in this example, measurement Data.) Is collected and transmitted to the gateway device 200 via a communication network such as the Internet. Specifically, the data transmission / reception function included in the wireless communication controller 10 includes an ad hoc wireless communication function and an Internet communication function.

  Here, the “ad hoc wireless communication function” is used for communication with each of the measurement units 21 to 24. According to ad-hoc communication, bidirectional communication is automatically started between communication terminals existing within a communicable range (for example, within a communicable distance of several tens to several hundred meters). Conveniently, various types of wireless communication networks such as mesh type and star type can be easily formed without performing wiring between each measurement unit and special setting processing even when installing a wide range of . In this example, ZigBee communication is adopted in order to realize an ad hoc wireless communication function.

  In addition, since the wireless communication controller 10 has less restrictions on cost and power consumption, it has a microcomputer that is significantly higher in performance than the microcomputer mounted on each of the plurality of wireless communication terminals 31 to 34, and has several tens of megabytes. RAM and a multi-gigabyte storage device (eg SD memory) are installed. These storage media are used as a measurement data DB.

  Further, the wireless communication controller 10 is equipped with a real time clock (RTC) which is a reference for the entire ad hoc wireless network.

  The battery included in the wireless communication controller 10 is preferably a battery having a larger amount of charge than that added to each of the plurality of measurement units 21 to 24. This is because the wireless communication controller 10 generally has a larger amount of data communication and data processing than a measurement unit and consumes more power.

  The wireless communication controller 10 may be configured to add a natural energy power generation device. As the natural energy power generation device, a solar power generation device, a wind power generation device, a vibration power generation device, and the like can be used as appropriate. However, the natural energy power generation device can generate power enough to drive the wireless communication controller 10 without receiving an electric supply from an external power source. It is preferable to have the ability. Therefore, the solar power generation device is particularly preferable because it is relatively inexpensive and has high power generation capability.

  By adopting a configuration in which the wireless communication controller 10 includes a battery and a natural energy power generation device, various data can be collected and transmitted over a long period of time without using an external power supply.

  The relay unit 40 includes an ad hoc wireless communication terminal and a storage battery (not shown). Note that, similarly to the components of the other wireless communication system 50, a configuration in which a natural energy power generation device is added to the relay unit 40 may be adopted.

  In this example, the relay unit 40 compensates for the shortage of the communication distance between each of the plurality of measurement units 21 to 24 and the wireless communication controller 10, and also when the communication radio wave is difficult to reach due to the shield or the like Used to secure a communication route by bypassing

  The digital communication network 150 includes a digital communication controller 120 and a plurality of control devices 131 to 135. Any number of control devices may be provided.

  The digital communication network 150 of this example is a wired communication network constructed by a digital communication system using a field bus called CC-Link, for example. The digital communication controller 120 has a function of controlling the control devices 131 to 135.

  The control devices 131 to 135 are field devices that operate in a factory, for example, and correspond to various sensors 131 to 133, an operation device 134, and a drive device 135.

  The gateway device 200 is connected to the wireless communication controller 10 in the wireless communication network 50 and the digital communication controller 120 in the digital communication network 150, and mutually converts data handled on the wireless communication network 50 side and data handled on the digital communication network 150 side. It has a function to provide. The gateway device 200 is provided with an address management function necessary for data definition mapping between the networks 50 and 150.

  FIG. 2 is a block diagram illustrating an example of the configuration of the gateway device 200. As illustrated in FIG. 2, the gateway device 200 includes a data transmission / reception unit 201, a wireless communication network usage data generation unit 202, a wired communication network usage data generation unit 203, and a generation rule DB 204.

  The data transmission / reception unit 201 has a function of executing data communication with the wireless communication controller 10 and the digital communication controller 120.

  The wireless communication network utilization data generation unit 202 includes various data originating from the wired communication network 150, such as data collected by measurement by the devices 131 to 135 in the digital communication network (wired communication network) 150. From the wired network origin data including the wireless communication network 50, the wireless communication network usage data indicating the data that can be used in the wireless communication network 50 is generated.

  The wired communication network usage data generation unit 203 is based on wireless communication network origin data that means data originating from the wireless communication network 50, such as data measured and collected by the measurement units 21 to 24 in the wireless communication network 50. And a function of executing processing for generating wired communication network use data indicating data usable in the digital communication network (wired communication network) 150.

  The generation rule DB 204 is a storage medium that stores generation rule information indicating a generation rule when generating wireless communication network usage data and wired communication network usage data. In this example, the wired communication network usage data has a data configuration including the wired device address assigned to the wired device and the wired device data generated by the wired device. Assume that the data structure is the same. Further, in this example, the wireless communication network utilization data has a data configuration including a wireless device address assigned to the wireless device and wireless device data generated by the wireless device, and the wireless communication network origin data and Assume that the data structure is the same.

  The gateway device 200 may be configured to be incorporated in the wireless communication controller 10 (that is, a configuration in which the wireless communication controller 10 includes the gateway device 200), or may be configured to be incorporated in the network management server 110 (that is, the network management server 110). May comprise a gateway device 200).

  Here, the logical address and station number address used in this example will be described. The station number address is an address including a station number fixedly given to each of the devices 131 to 135 in the wired communication network 150, and is configured by predetermined fixed length data. In this example, the gateway device 200 wired to the digital communication controller 120 is also treated as a device in the wired communication network 150. The gateway device 200 is assigned a station number, and a predetermined station number address including the station number is assigned. It shall be granted.

  The logical address is, for example, an address fixedly given to each measurement unit 21 to 24 in the wireless communication network 50 that is a ZigBee wireless network, and is configured by fixed-length data having the same length as the station number address. In this example, it is assumed that the logical address is composed of a station number of the gateway device 200, an occupied station, and a block number. That is, each measurement unit 21 to 24 is assigned a logical address including the station number of the gateway device 200.

  Next, the operation of the gateway system 300 of this example will be described.

  FIG. 3 is a flowchart illustrating an example of gateway processing executed by the gateway device 200 in the gateway system 300. In this example, when receiving the wireless communication network origin data from each measurement unit 21 to 24 in the wireless communication network 50, the wireless communication controller 10 transmits the data to the gateway device 200. When the digital communication controller 120 receives the wired communication network origin data from the devices 131 to 135 in the wired communication network 150, the digital communication controller 120 transmits the data to the gateway device 200.

  In the gateway processing, wireless network origin data including measurement data collected by the wireless communication network 50 (data measured by the measurement units 21 to 24: an example of wireless device data) is received from the wireless communication controller 10, and the received measurement is received. A process of generating wired communication network use data that can be handled on the digital communication network 150 side from the data and transmitting it to the digital communication controller 120, and control result data collected by the digital communication network 150 (of the control devices 131 to 135) Data indicating the control result: Wired communication network origin data including an example of wired device data) is received from the digital communication controller 120, and is handled on the wireless communication network 50 side from the received control result data. Process for transmitting it generates and the wireless communication controller 10 of the wireless network usage data that can be is performed. Note that the contents of processes not particularly related to the present invention may be omitted.

  The measurement data collection process in the wireless communication network 50 and the control result data collection process in the digital communication network 150 are executed by a known method, and thus detailed description thereof will be omitted.

  The gateway process is started, for example, when the gateway device 200 is powered on or when the gateway device 200 is reset.

  In the gateway process, the gateway device 200 first checks whether or not the wireless communication network origin data is received from the wireless communication controller 10 (step S101). In this example, “wireless communication network origin data” is information including measurement data by the measurement units 21 to 24 and logical addresses (an example of wireless device addresses) assigned to the measurement units 21 to 24. The wireless communication network origin data is data in which a logical address is associated with measurement data by a measurement unit to which the logical address is assigned.

  When the wireless communication network origin data is received (Y in step S101), the gateway device 200 refers to the generation rule DB 204 and generates the wired communication network usage data from the wireless communication network origin data according to a predetermined generation rule (step S101). S102).

  In this example, the logical address in the wireless communication network origin data is handled as a station number address, thereby generating wired communication network usage data from the wireless communication network origin data. That is, by storing the logical address in the storage area of the station number address in the data format of the data used in the wired communication network that is the same format as the data originated from the wired communication network, and storing the measurement data in the storage area of the control result data Wired communication network usage data is generated from communication network origin data.

  When the wired communication network usage data is generated from the wireless communication network origin data, the gateway device 200 transmits the generated wired communication network usage data to the network management server 110 (step S103).

  Next, the gateway device 200 confirms whether the wired communication network origin data is received from the network management server 110 (step S104). In this example, “wired communication network origin data” is information including control result data by the control devices 131 to 135 and station number addresses (an example of wired device addresses) assigned to the control devices 131 to 135. The wired communication network origin data is data in which a station number address is associated with control result data from a control device to which the station number address is assigned.

  When the wired communication network origin data is received (Y in Step S104), the gateway device 200 generates wireless communication network usage data from the second network origin data according to a predetermined generation rule with reference to the generation rule DB 204 (Step S104). S105).

  In this example, the wireless communication network usage data is generated from the wired communication network origin data by treating the station number address in the wired communication network origin data as a logical address. In other words, the station number address is stored in the logical address storage area in the data format of the wireless communication network origin data, and the control result data is stored in the measurement data storage area, so that the wireless communication network use data is converted from the wired communication network origin data. Is generated.

  When the wireless communication network usage data is generated from the wired communication network origin data, the gateway device 200 transmits the generated wireless communication network usage data to the wireless communication controller 10 (step S106).

  As described above, in the above-described embodiment, the gateway device 200 includes a plurality of wireless devices to which wireless device addresses (for example, logical addresses) indicating addresses for wireless devices (for example, the measurement unit 21) are assigned. The wireless communication controller 10 that controls the wireless communication network 50 that includes the wired communication network 150 that includes a plurality of wired devices to which wired device addresses (for example, station number addresses) indicating addresses for the wired devices (for example, the sensor 131) are assigned are controlled. Connected to a wired communication controller (for example, the digital communication controller 120), and a wireless device address assigned to the wireless device and wireless device data generated by the wireless device (for example, measurement data by the measurement units 21 to 24). ) Including wireless communication network origin data via the wireless communication controller 10, and without changing the data content of the wireless communication network origin data, the wireless device address included in the wireless communication network origin data is changed to a wired device address. Converted (assuming that the wireless device address is handled as a wired device address) to generate wired communication network usage data that can be used in the wired communication network from the wireless communication network origin data, and the generated wired communication network usage data is wired communication Since the data is transmitted to the controller, the wireless communication network can be smoothly connected to the wired communication network according to the characteristics of the wired communication network.

  In other words, without changing the data content of the wireless communication network origin data, the wireless device address included in the wireless communication network origin data is converted into a wired device address, and the wireless communication network origin data can be used on the wired communication network. Since the wired communication network usage data is generated, the wireless communication network can be smoothly connected to the wired communication network without changing the network configuration of the wired communication network.

  In the above-described embodiment, the wired communication network utilization data has the same data configuration as the wired communication network origin data including the wired device address assigned to the wired device and the wired device data generated by the wired device. The gateway device 200 stores the wireless device address in the storage area of the wired device address in the data format of the wired communication network usage data, and stores the wireless device data in the storage area of the wired device data. Since the wired communication network usage data is generated from the wireless communication network origin data, the wireless communication network can be smoothly connected to the wired communication network without changing the network configuration of the wired communication network. It is possible to connect.

  In the above-described embodiment, the gateway device 200 further transmits the wired communication network origin data including the wired device address assigned to the wired device and the wired device data generated by the wired device to the wired communication controller ( For example, without changing the data content of the wired communication network origin data received via the digital communication controller 120), the wired device address included in the wired communication network origin data is converted into a wireless device address, and the wired communication network origin Wireless communication network utilization data transmitting means for generating wireless communication network utilization data usable in the wireless communication network from the data and transmitting the generated wireless communication network utilization data to the wireless communication controller 10. Since a configuration, it is possible to interconvert together communication between the wireless communication network and a wired communication network to the characteristics of each network.

  In the above-described embodiment, the wireless communication network utilization data has the same data configuration as the wireless communication network origin data including the wireless device address assigned to the wireless device and the wireless device data generated by the wireless device. The gateway device 200 stores the wired device address in the wireless device address storage area in the data format of the wireless communication network usage data, and stores the wired device data in the wireless device data storage area. Since it is configured to generate wireless communication network usage data from wired communication network origin data, the communication between the wireless communication network and the wired communication network must be mutually converted according to the characteristics of each network It becomes possible way.

In the above-described embodiments, the wired communication network is a communication network constructed by a digital communication system using a fieldbus, the wireless communication network is an ad hoc wireless network, and the wired device address is a wired communication network. Is a station number address including a station number fixedly given to each wired device in the wireless device address is an address fixedly given to each wireless device in the wireless communication network, and is the same as each wired device Since the logical address including the station number assigned to the gateway device is configured, the station number address and the logical address are configured to be usable in both the wired communication network and the wireless communication network. Can Becomes, without changing the data contents of the station number and logical addresses, it is possible to convert the codes and logical addresses.

  Although not particularly mentioned in the above-described embodiment, each unit constituting the wireless communication network 50 is not a battery in normal time (that is, when electricity is normally supplied). It is good also as a structure driven with the electric power supplied.

  Although not particularly mentioned in the above-described embodiment, each of the measurement units 21 to 24 configuring the wireless communication network 50 is equipped with an information storage medium such as a microSD memory, resulting in poor wireless communication. Even in such a case, the measurement data may not be lost.

  In the above-described embodiment, the gateway device 200 executes the various processes described above (see FIG. 3) according to a control program (gateway processing program) stored in a storage medium provided in the gateway apparatus 200.

  The present invention is useful for smoothly connecting a wireless communication network to a wired communication network in accordance with the characteristics of the wired communication network.

DESCRIPTION OF SYMBOLS 10 Wireless communication controller 21-24 Measurement unit 31-34 Wireless communication terminal 40 Relay unit 50 Wireless communication network 120 Digital communication controller 150 Digital communication network 200 Gateway apparatus 300 Gateway system

Claims (5)

A wireless communication controller that controls a wireless communication network including a plurality of wireless devices assigned wireless device addresses indicating addresses for wireless devices, and a plurality of wired devices assigned wired device addresses indicating addresses for wired devices Connected to a wired communication controller that controls the wired communication network, including
Wireless communication network origin data receiving means for receiving wireless communication network origin data including a wireless device address assigned to the wireless device and wireless device data generated by the wireless device via the wireless communication controller;
Without changing the data content of the wireless communication network origin data, the wireless device address included in the wireless communication network origin data is converted into a wired device address, and used from the wireless communication network origin data in the wired communication network Wired communication network usage data generation means for generating possible wired communication network usage data;
And a wired communication network utilization data transmitting means for transmitting the wired communication network usage data generated by the wired communication network usage data generating unit to the wired communication controller seen including,
The wired communication network usage data has the same data configuration as the wired communication network origin data including the wired device address assigned to the wired device and the wired device data generated by the wired device,
The wired communication network usage data generation means stores the wireless device address in the storage area of the wired device address in the data format of the wired communication network usage data, and stores the wireless device data in the storage area of the wired device data. The gateway apparatus characterized in that the wired communication network usage data is generated from the wireless communication network origin data . Wired communication network origin data receiving means for receiving, via the wired communication controller, wired communication network origin data including a wired device address assigned to the wired device and wired device data generated by the wired device;
Without changing the data content of the wired communication network origin data, a wired device address included in the wired communication network origin data is converted into a wireless device address and used from the wired communication network origin data in the wireless communication network Wireless communication network usage data generating means for generating possible wireless communication network usage data;
Claim 1 Symbol placement of the gateway device and a wireless communication network utilizing the data transmitting means for transmitting a wireless communication network utilizing data generated by the wireless communication network usage data generating means to the radio communication controller. The wireless communication network usage data has the same data configuration as the wireless communication network origin data including the wireless device address assigned to the wireless device and the wireless device data generated by the wireless device,
The wireless communication network utilization data generating means stores the wired device address in the wireless device address storage area in the data format of the wireless communication network utilization data, and stores the wired device data in the wireless device data storage area. The gateway device according to claim 2, wherein the wireless communication network usage data is generated from the wired communication network origin data.   A wireless communication controller that controls a wireless communication network including a plurality of wireless devices assigned wireless device addresses indicating addresses for wireless devices, and a plurality of wired devices assigned wired device addresses indicating addresses for wired devices Connected to a wired communication controller that controls the wired communication network, including
  Wireless communication network origin data receiving means for receiving wireless communication network origin data including a wireless device address assigned to the wireless device and wireless device data generated by the wireless device via the wireless communication controller;
  Without changing the data content of the wireless communication network origin data, the wireless device address included in the wireless communication network origin data is converted into a wired device address, and used from the wireless communication network origin data in the wired communication network Wired communication network usage data generation means for generating possible wired communication network usage data;
  Wired communication network utilization data transmission means for transmitting the wired communication network utilization data generated by the wired communication network utilization data generation means to the wired communication controller;
  Wired communication network origin data receiving means for receiving, via the wired communication controller, wired communication network origin data including a wired device address assigned to the wired device and wired device data generated by the wired device;
  Without changing the data content of the wired communication network origin data, a wired device address included in the wired communication network origin data is converted into a wireless device address and used from the wired communication network origin data in the wireless communication network Wireless communication network usage data generating means for generating possible wireless communication network usage data;
  Wireless communication network utilization data transmitting means for transmitting wireless communication network utilization data generated by the wireless communication network utilization data generating means to the wireless communication controller;
  The wireless communication network usage data has the same data configuration as the wireless communication network origin data including the wireless device address assigned to the wireless device and the wireless device data generated by the wireless device,
  The wireless communication network utilization data generating means stores the wired device address in the wireless device address storage area in the data format of the wireless communication network utilization data, and stores the wired device data in the wireless device data storage area. Generating the wireless communication network usage data from the wired communication network origin data
  A gateway device characterized by that.   A wireless communication controller that controls a wireless communication network including a plurality of wireless devices assigned wireless device addresses indicating addresses for wireless devices, and a plurality of wired devices assigned wired device addresses indicating addresses for wired devices Connected to a wired communication controller that controls the wired communication network, including
  Wireless communication network origin data receiving means for receiving wireless communication network origin data including a wireless device address assigned to the wireless device and wireless device data generated by the wireless device via the wireless communication controller;
  Without changing the data content of the wireless communication network origin data, the wireless device address included in the wireless communication network origin data is converted into a wired device address, and used from the wireless communication network origin data in the wired communication network Wired communication network usage data generation means for generating possible wired communication network usage data;
  Wire communication network utilization data transmission means for transmitting the wire communication network utilization data generated by the wired communication network utilization data generation means to the wired communication controller;
  The wired communication network is a communication network constructed by a digital communication system using a fieldbus,
  The wireless communication network is an ad hoc wireless network;
  The wired device address is an address including a station number fixedly given to each wired device in the wired communication network,
  The wireless device address is an address that is fixedly assigned to each wireless device in the wireless communication network, and includes an address that is assigned to the gateway device in the same manner as each wired device.
  A gateway device characterized by that.

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