JP2015161952A - Power measuring device, power measuring system, communication control method, and communication control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power measuring device, power measuring system, communication control method, and communication control program that are able to perform connection setting to a radio network with a simple configuration in a power measuring system for transmitting measurement information on electric power.SOLUTION: A power measuring device includes a power measuring unit and a communication unit that performs radio communication with an object device which is an opposite communication party and that is able to transmit measurement information based on a measurement result by the power measuring unit by putting it in a radio signal. The communication unit is able to perform first operation to perform communication with the object device without using another device, and second operation to perform communication with the object device via a relay device that is able to perform in parallel relaying of information exchanged between the power measuring device and the object device and relaying of information exchanged between another device and the object device.

Description

  The present invention relates to a power measurement device, a power measurement system, a communication control method, and a communication control program, and particularly to a power measurement device, a power measurement system, a communication control method, and a communication control program for transmitting measurement information related to power.

  A power measurement system has been developed that measures the amount of power consumed at home and at the workplace for the purpose of saving power and enables the user to check the amount of power consumed.

  In such a power measurement system, for example, when a power measurement device that performs power measurement communicates with a terminal device such as a tablet via a wireless network, the user can check information on power consumption in the terminal device. it can.

  As a technique for connecting a device to a wireless network, for example, Japanese Unexamined Patent Application Publication No. 2007-81738 (Patent Document 1) discloses the following configuration. That is, the information processing apparatus performs setting for connecting to a wireless network with respect to a first connection unit that wire-connects an electronic device capable of wireless communication and an electronic device that is wire-connected to the first connection unit. And a wireless setting unit for performing.

  Japanese Patent Laying-Open No. 2012-134891 (Patent Document 2) discloses the following configuration. That is, the memory sends setting information used for setting to connect to a wireless network, an image file corresponding to the setting information, and a processing instruction for the image file from a device having a memory interface that performs input / output with the memory. Based on the instruction information input to the interface unit, the storage unit that stores the setting information and the image file input to the interface unit, and the instruction information input to the interface unit Of the setting information stored in the storage unit, a processing unit that performs processing on the image file stored in the communication unit, a communication unit that performs wireless communication, and the processing unit that has been processed by the processing unit A setting unit configured to perform network setting based on the setting information corresponding to the image file. That.

JP 2007-81738 A JP 2012-143891 A

  For example, when connecting the power measurement apparatus to a wireless LAN network, it is necessary to set an SSID (Service Set Identifier), a password, and the like on the power measurement apparatus. For example, when the technique disclosed in Patent Document 1 or 2 is used, a setting interface such as a wired connection unit, a liquid crystal screen, or a memory connection unit is required in the power measurement device.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to enable power connection setting to a wireless network with a simple configuration in a power measurement system that transmits measurement information about power. A measurement device, a power measurement system, a communication control method, and a communication control program are provided.

  (1) In order to solve the above-described problem, a power measurement device according to an aspect of the present invention includes a power measurement device according to an embodiment of the present invention, a power measurement unit, a target device that is a communication partner, and wireless communication. A communication unit capable of transmitting measurement information based on a measurement result by the power measurement unit in a wireless signal, and the communication unit communicates with the target device without passing through another device. Relay capable of performing operation, relay of information transmitted / received between the power measuring device and the target device, and relay of information transmitted / received between the other device and the target device in parallel A second operation of communicating with the target device via the device can be performed.

  (4) In order to solve the above-described problem, a power measurement system according to an aspect of the present invention includes a power measurement device and a target device, and the power measurement device performs wireless communication with the target device, The measurement information based on the measurement result of can be transmitted in a wireless signal, the power measurement device can perform wireless communication with the target device without passing through another device, the target device, In a state where wireless communication is performed with the power measurement device without passing through another device, relay of information transmitted and received between the power measurement device and the target device, and between the other device and the target device Setting information related to a relay device capable of relaying information transmitted and received in parallel is transmitted to the power measurement device, and the power measurement device uses the setting information received from the target device. Accordingly, it communicates with the target device via the relay device.

  (5) In order to solve the above-described problem, a communication control method according to an aspect of the present invention is a communication control method in a power measurement system including a power measurement device and a target device, and the power measurement device includes: A step of performing wireless communication with the target device, capable of transmitting measurement information based on a power measurement result in a wireless signal, and the power measuring device performing wireless communication with the target device without passing through another device And relaying information transmitted and received between the power measurement device and the target device in a state where the target device is performing wireless communication with the power measurement device without passing through another device, and other Transmitting setting information related to a relay device capable of relaying information transmitted and received between the device and the target device in parallel to the power measurement device; and By using the setting information received from the target device, and a step of via the relay device communicates with the target device.

  (6) In order to solve the above-described problem, a communication control program according to an aspect of the present invention performs wireless communication with a target device that is a communication partner, and transmits measurement information based on a power measurement result in a wireless signal. A communication control program used in a power measuring apparatus capable of performing a first operation of communicating with the target apparatus without passing through another apparatus on a computer, and the power measuring apparatus and the target apparatus. A second device that communicates with the target device via a relay device capable of relaying information transmitted / received between them and a relay device capable of relaying information transmitted / received between another device and the target device in parallel; This is a program for executing an operation step.

  The present invention can be realized not only as a power measuring device including such a characteristic processing unit, but also as a method using such characteristic processing as a step. Further, it can be realized as a semiconductor integrated circuit that realizes part or all of the power measuring device.

  The present invention can be realized not only as a power measurement system including such a characteristic processing unit, but also as a program for causing a computer to execute such characteristic processing steps. Further, it can be realized as a semiconductor integrated circuit that realizes part or all of the power measurement system.

  ADVANTAGE OF THE INVENTION According to this invention, in the electric power measurement system which transmits the measurement information regarding electric power, the connection setting to a wireless network can be performed with a simple structure.

FIG. 1 is a diagram showing a configuration of a power measurement system according to an embodiment of the present invention. FIG. 2 is a diagram showing a direct mode which is an example of an operation mode of the power measuring apparatus according to the embodiment of the present invention. FIG. 3 is a diagram illustrating a router mode which is an example of an operation mode of the power measurement device according to the embodiment of the present invention. FIG. 4 is a flowchart that defines an example of an operation procedure when the power measurement system according to the embodiment of the present invention transmits measurement information.

  First, the contents of the embodiment of the present invention will be listed and described.

  (1) A power measurement device according to an embodiment of the present invention wirelessly communicates with a power measurement unit and a target device that is a communication partner, and includes measurement information based on a measurement result by the power measurement unit in a wireless signal. A communication unit capable of transmitting, wherein the communication unit communicates with the target device without passing through another device, and information transmitted and received between the power measurement device and the target device. It is possible to perform a relay and a second operation of communicating with the target device via a relay device capable of relaying information transmitted and received between the other device and the target device in parallel. It is.

  In this way, with the configuration capable of executing the operation of directly communicating with the target device and the operation of communicating with the target device via the relay device, it is possible to acquire various information and construct a flexible communication network using these two operations. It can be easily realized. For example, it is possible to connect to a wireless network without providing setting interfaces such as a wired connection unit, a liquid crystal screen, and a memory connection unit. Therefore, in the power measuring device according to the embodiment of the present invention, connection setting to the wireless network can be performed with a simple configuration.

  (2) Preferably, in the first operation, the communication unit receives setting information related to the relay device from the target device, and performs the second operation using the setting information.

  With such a configuration, in the operation of directly communicating with the target device, for example, information necessary for wireless communication with the relay device can be acquired from the target device, so connection setting to the wireless network can be performed with simple processing. Can be performed.

  (3) Preferably, the power measurement device further includes an operation unit for switching between the first operation and the second operation, and the communication unit performs the operation in a state in which the first operation is performed. When the first operation is performed on the operation unit, the first operation is stopped and the second operation is started. When the second operation is performed, the second operation is performed on the operation unit. Is performed, the second operation is stopped and the first operation is started.

  As described above, with the configuration in which the operation unit for switching between the first operation and the second operation is provided, for example, even when there is an error in the setting information provided from the target device to the power measurement device, the second operation to the first operation is performed. Since it is possible to manually switch to, it is possible to avoid a situation in which the power measurement device cannot communicate with any device.

  (4) A power measurement system according to an embodiment of the present invention includes a power measurement device and a target device, and the power measurement device wirelessly communicates with the target device, and measurement information based on a power measurement result Can be transmitted including a wireless signal, and the power measuring device can perform wireless communication with the target device without passing through another device, and the target device can be sent without passing through another device. Relay of information transmitted / received between the power measuring device and the target device and information transmitted / received between another device and the target device in a state of performing wireless communication with the power measuring device Setting information related to a relay device capable of performing relaying in parallel is transmitted to the power measurement device, and the power measurement device uses the setting information received from the target device, thereby passing through the relay device. Communicating with the target device.

  As described above, the power measurement device can execute an operation of directly communicating with the target device and an operation of communicating with the target device via the relay device. Construction of a communication network can be easily realized. For example, it is possible to connect to a wireless network without providing setting interfaces such as a wired connection unit, a liquid crystal screen, and a memory connection unit. Therefore, in the power measurement system according to the embodiment of the present invention, the connection setting to the wireless network can be performed with a simple configuration.

  (5) A communication control method according to an embodiment of the present invention is a communication control method in a power measurement system including a power measurement device and a target device, and the power measurement device performs wireless communication with the target device. Measurement information based on the measurement result of power can be included in a wireless signal and transmitted, and the power measurement device performs wireless communication with the target device without passing through another device, and the target device includes: In a state where wireless communication is performed with the power measurement device without passing through another device, relay of information transmitted and received between the power measurement device and the target device, and between the other device and the target device Transmitting setting information related to a relay device capable of relaying information transmitted / received in parallel to the power measuring device, and before the power measuring device has received from the target device By using the setting information, and a step of via the relay device communicates with the target device.

  As described above, the power measurement device can execute an operation of directly communicating with the target device and an operation of communicating with the target device via the relay device. Construction of a communication network can be easily realized. For example, it is possible to connect to a wireless network without providing setting interfaces such as a wired connection unit, a liquid crystal screen, and a memory connection unit. Therefore, in the communication control method according to the embodiment of the present invention, connection setting to a wireless network can be performed with a simple configuration.

  (6) The communication control program according to the embodiment of the present invention is used in a power measurement apparatus capable of performing wireless communication with a target apparatus that is a communication partner and transmitting measurement information based on a power measurement result in a wireless signal. A communication control program for performing a first operation for communicating with the target device without passing through another device to a computer; and information transmitted and received between the power measuring device and the target device. Performing a relay and a second operation of communicating with the target device via a relay device capable of relaying information transmitted and received between the other device and the target device in parallel. It is a program to make it.

  In this way, with the configuration capable of executing the operation of directly communicating with the target device and the operation of communicating with the target device via the relay device, it is possible to acquire various information and construct a flexible communication network using these two operations. It can be easily realized. For example, it is possible to connect to a wireless network without providing setting interfaces such as a wired connection unit, a liquid crystal screen, and a memory connection unit. Therefore, in the communication control program according to the embodiment of the present invention, connection setting to the wireless network can be performed with a simple configuration.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated. Moreover, you may combine arbitrarily at least one part of embodiment described below.
[Configuration and basic operation]
FIG. 1 is a diagram showing a configuration of a power measurement system according to an embodiment of the present invention.

  Referring to FIG. 1, a power measurement system 301 is constructed in a home such as a home and a workplace, and includes a power measurement device 101, a wireless LAN router (relay device) 151, a PCS (power conditioner) 162, A power generation device 163, a CT sensor 164, and a terminal device 202 are provided. The power measuring apparatus 101 includes a voltage conversion circuit 11, an arithmetic processing unit 12, a communication unit 13, a storage unit 14, a clock circuit 15, a power supply circuit 16, and an operation unit 17. Part or all of the voltage conversion circuit 11 and part or all of the arithmetic processing unit 12 correspond to the power measurement unit according to the embodiment of the present invention.

  The power measuring device 101 measures, for example, the purchased and sold power in the house and the generated power in the house. And the electric power measurement apparatus 101 produces and hold | maintains the measurement information which shows the generated electric power in a house, power consumption, and buying and selling power, for example. In addition, the power measurement apparatus 101 includes the created measurement information in a wireless signal and transmits it to the wireless LAN router 151.

  The wireless LAN router 151 again includes the measurement information included in the wireless signal received from the power measurement device 101 in the wireless signal and transmits the wireless signal to the terminal device 202.

  The terminal device 202 processes the measurement information received from the power measurement device 101 via the wireless LAN router 151, thereby performing various power graph display, charge display, carbon dioxide reduction display, and the like.

  The CT sensor 164 measures the current flowing through the power line 165 connected to the power system 161 in the distribution board 166, and outputs a signal corresponding to the measured current value to the voltage conversion circuit 11.

  The power generation device 163 is a solar power generation device, for example, and outputs the generated DC power to the PCS 162.

  PCS 162 converts the DC power received from power generation device 163 into AC power and outputs the AC power to power line 165. The PCS 162 measures the power generated by the power generation device 163 and outputs a signal indicating the measurement result to the arithmetic processing unit 12.

  The voltage conversion circuit 11 converts the signal received from the CT sensor 164 into a voltage having a level corresponding to the current value measured by the CT sensor 164 and in an appropriate range, and outputs the voltage to the arithmetic processing unit 12. In addition, the voltage conversion circuit 11 converts the voltage of the power line 165 into a voltage in an appropriate range and outputs the voltage to the arithmetic processing unit 12.

  The arithmetic processing unit 12 is, for example, a CPU (Central Processing Unit) or a microcomputer, and performs various arithmetic processing and control of each unit. For example, the arithmetic processing unit 12 creates measurement information indicating the generated power, power consumption and trading power in the home based on each voltage received from the voltage conversion circuit 11 and a signal received from the PCS 162 and stores it in the storage unit 14. save. The measurement information is not limited to information indicating power, but may be information indicating voltage or current. The storage unit 14 is, for example, a flash memory.

  Specifically, in the power sale state in which the power generation amount of the power generation device 163 is large and power is supplied from the power generation device 163 to the power system 161 via the PCS 162 and the power line 165, the power sale is calculated in the arithmetic processing unit 12. The Further, in a state where the power generation amount of the power generation device 163 is insufficient and electric power is supplied from the power system 161 via the power line 165, the operation processing unit 12 calculates the purchased power. Further, the arithmetic processing unit 12 calculates the total power consumption in the house = the power generation amount of the power generation device 163−the power sales amount in the power sale state, and the total power consumption in the home = the power generation amount of the power generation device 163+ in the power purchase state. Calculated as the amount of electricity purchased.

  The communication unit 13 exchanges various information with the terminal device 202 through the wireless LAN router 151 by transmitting and receiving wireless signals to and from the wireless LAN router 151.

  More specifically, the arithmetic processing unit 12 outputs various information to the communication unit 13. The communication unit 13 generates a wireless signal including information received from the arithmetic processing unit 12 and transmits the wireless signal to the terminal device 202 via the wireless LAN router 151.

  In addition, the communication unit 13 acquires various types of information included in the wireless signal received from the wireless LAN router 151 and outputs the acquired information to the arithmetic processing unit 12.

  Specifically, for example, the communication unit 13 acquires a power information request from the terminal device 202 included in the wireless signal received from the wireless LAN router 151, and outputs the acquired power information request to the arithmetic processing unit 12.

  The arithmetic processing unit 12 receives a power information request from the communication unit 13, acquires measurement information from the storage unit 14, and outputs the acquired measurement information to the communication unit 13.

  The communication unit 13 generates a wireless signal including the measurement information received from the arithmetic processing unit 12 and transmits the wireless signal to the terminal device 202 via the wireless LAN router 151.

  The operation unit 17 includes a switch, for example, and outputs an operation signal corresponding to a user operation to the arithmetic processing unit 12. The clock circuit 15 generates an operation clock for the arithmetic processing unit 12 and outputs the operation clock to the arithmetic processing unit 12. The power supply circuit 16 supplies power to each circuit in the power measuring apparatus 101. The power supply circuit 16 receives power supply from the PCS 162, for example.

  FIG. 2 is a diagram showing a direct mode which is an example of an operation mode of the power measuring apparatus according to the embodiment of the present invention. FIG. 3 is a diagram illustrating a router mode which is an example of an operation mode of the power measurement device according to the embodiment of the present invention.

  The communication unit 13 (see FIG. 1) in the power measurement device 101 can perform wireless communication with a target device that is a communication partner, for example, the terminal device 202, and can transmit measurement information based on a measurement result by the power measurement unit in a wireless signal. is there.

  Further, the communication unit 13 can perform a first operation for communicating with the terminal device 202 without passing through another device and a second operation for communicating with the terminal device 202 via the wireless LAN router 151. is there. For example, the communication unit 13 switches between the first operation and the second operation in accordance with an instruction from the arithmetic processing unit 12.

  Referring to FIG. 2, in direct mode, which is an example of the first operation, power measurement apparatus 101 operates as a wireless LAN access point, that is, a parent device. The terminal device 202 operates as a wireless LAN slave unit. That is, in the direct mode, the power measurement device 101 can communicate with the terminal device 202 without going through another device.

  Referring to FIG. 3, in the router mode that is an example of the second operation, power measurement apparatus 101 operates as a wireless LAN slave unit. The terminal device 202 operates as a wireless LAN slave unit. That is, in the router mode, the power measurement apparatus 101 can communicate with the terminal apparatus 202 via the wireless LAN router 151 that is a base unit of the wireless LAN as described above.

  In the router mode, for example, the wireless LAN router 151 relays information transmitted / received between the PC 172 and the external network 171, relays information transmitted / received between the terminal device 202 and the external network 171, and the power measurement device 101 and the terminal device. It is possible to relay information transmitted and received between 202 in parallel. Any device having such a communication function may be used, and the present invention is not limited to a wireless LAN router.

  When the power measurement apparatus 101 operates in the router mode, the terminal apparatus 202 can perform various communications in parallel with not only the power measurement apparatus 101 but also other apparatuses via the wireless LAN router 151.

[Operation]
Next, transmission operation of measurement information in the power measurement system according to the embodiment of the present invention will be described.

  Each device in the power measurement system 301 includes a computer, and an arithmetic processing unit such as a CPU in the computer reads and executes a program including a part or all of each step of the following flowchart from a memory (not shown). Each of the programs of the plurality of apparatuses can be installed from the outside. The programs of the plurality of apparatuses are distributed while being stored in a recording medium.

  FIG. 4 is a flowchart that defines an example of an operation procedure when the power measurement system according to the embodiment of the present invention transmits measurement information.

  In the first operation, the communication unit 13 receives the setting information related to the wireless LAN router 151 from the terminal device 202, and performs the second operation using the setting information.

  The operation unit 17 is provided, for example, for switching between the first operation and the second operation. When the first operation is performed on the operation unit 17 while the first operation is being performed, the communication unit 13 stops the first operation, starts the second operation, and performs the second operation. When the second operation is performed on the operation unit 17 in the state, the second operation is stopped and the first operation is started.

  Specifically, referring to FIG. 4, first, power measurement apparatus 101 is operating in the direct mode, that is, operating as a base unit of a wireless LAN (step S1).

  Further, the terminal device 202 is in a state of establishing a communication connection with the wireless LAN router 151 as a wireless LAN slave unit, for example, to communicate with the wireless LAN router 151 such as the SSID and password of the wireless LAN router 151. Are stored (step S2).

  Next, the terminal device 202 searches for the SSID of the power measurement device 101 that operates as a parent device (step S3).

  Next, a communication connection between the terminal device 202 and the power measuring device 101 is established by transmitting and receiving various information such as an SSID and a password between the terminal device 202 and the power measuring device 101 (step S4). At this time, the communication connection between the terminal device 202 and the wireless LAN router 151 is disconnected.

  Next, the terminal device 202 transmits the time information to the power measurement device 101 in order to acquire the correct time measurement information from the power measurement device 101 (step S5).

  Next, the power measuring device 101 sets its own clock based on the time information received from the terminal device 202. The power measuring apparatus 101 uses this clock to create measurement information in which various power measurement results are associated with times (step S6).

  Next, the terminal device 202 transmits the held setting information to the power measurement device 101. The terminal device 202 is not limited to the configuration (step S2) that holds the setting information, but may be configured such that the user inputs the setting information to the terminal device 202 (step S7).

  Next, the power measuring device 101 stores the setting information received from the terminal device 202 in the storage unit 14 (step S8).

  Next, the user switches, for example, a switch of the operation unit 17. The operation unit 17 outputs an operation signal indicating switch switching to the arithmetic processing unit 12 (step S9).

  Next, the power measuring apparatus 101 switches from the direct mode to the router mode by this operation signal, that is, switches from the operation of the parent device to the operation of the child device (step S10).

  Next, the power measuring apparatus 101 establishes a communication connection with the wireless LAN router 151 by transmitting and receiving various information to and from the wireless LAN router 151 using the stored setting information (step S11). .

  In addition, since the communication connection with the power measurement apparatus 101 is disconnected, the terminal apparatus 202 re-establishes the communication connection with the wireless LAN router 151 by transmitting and receiving various information to and from the wireless LAN router 151 ( Step S12).

  Next, the terminal device 202 transmits a power information request to the power measurement device 101 via the wireless LAN router 151 (steps S13 and S14).

  Next, the power measurement apparatus 101 receives a power information request from the terminal apparatus 202, and transmits measurement information to the terminal apparatus 202 via the wireless LAN router 151 (steps S15 and S16).

  Next, the terminal device 202 processes the measurement information received from the power measurement device 101, thereby performing various power graph display, charge display, carbon dioxide reduction display, and the like (step S17).

Further, the terminal device 202 periodically receives the measurement information, for example, by periodically transmitting the power request information to the power measurement device 101, and updates various power displays.
The power measurement system 301 may be configured not to transmit time information from the terminal device 202 to the power measurement device 101 (step S5) and to set a clock in the power measurement device 101 (step S6).

  The setting information may include only information for establishing a communication connection with the wireless LAN router 151, or may include only information necessary for transmission / reception of information after establishing the communication connection. It is also possible to include both of these.

  By the way, when connecting a power measuring device to a wireless LAN network, for example, it is necessary to set an SSID, a password, and the like for the power measuring device. For example, when the techniques described in Patent Documents 1 and 2 are used, a setting interface such as a wired connection unit, a liquid crystal screen, or a memory connection unit is required in the power measurement device.

  In particular, the power measuring device is often arranged at a position close to the distribution board so that the measurement wiring does not become long. For this reason, the power measurement device is often arranged at a position where it is difficult for the user to operate, such as near the ceiling. In such a case, it is difficult to connect a PC, a memory, and the like to the power measurement device, and an operation such as a general user opening the lid of the power measurement device with high voltage is not preferable. In addition, the connection setting of the power measuring device is not frequently performed and is often performed only at the time of installation. Therefore, providing various connection portions for setting input is expensive and wasteful.

  On the other hand, in the power measurement device according to the embodiment of the present invention, the communication unit 13 performs wireless communication with a target device that is a communication partner, for example, the terminal device 202, and obtains measurement information based on the measurement result by the power measurement unit. It can be transmitted by being included in a radio signal. The communication unit 13 can perform a first operation for communicating with the terminal device 202 without passing through another device, and a second operation for communicating with the terminal device 202 via the wireless LAN router 151.

  In this way, with the configuration capable of executing the operation of directly communicating with the terminal device 202 and the operation of communicating with the terminal device 202 via the wireless LAN router 151, acquisition of various information and flexible communication using these two operations. Network construction can be easily realized. For example, it is possible to connect to a wireless network without providing setting interfaces such as a wired connection unit, a liquid crystal screen, and a memory connection unit.

  Therefore, in the power measuring device according to the embodiment of the present invention, connection setting to the wireless network can be performed with a simple configuration.

  In the power measurement device according to the embodiment of the present invention, the communication unit 13 receives setting information related to the wireless LAN router 151 from the terminal device 202 in the first operation, and performs the second operation using the setting information. Do.

  With such a configuration, in the operation of directly communicating with the terminal device 202, for example, information necessary for performing wireless communication with the wireless LAN router 151 can be acquired from the terminal device 202. Therefore, the wireless network can be easily processed. Connection settings can be made.

  Moreover, in the electric power measuring device which concerns on embodiment of this invention, the operation part 17 is provided in order to switch 1st operation | movement and 2nd operation | movement, for example. When the first operation is performed on the operation unit 17 while the first operation is being performed, the communication unit 13 stops the first operation, starts the second operation, and performs the second operation. When the second operation is performed on the operation unit 17 in the state of performing, the second operation is stopped and the first operation is started.

  Thus, with the configuration in which the operation unit 17 for switching between the first operation and the second operation is provided, for example, even when there is an error in the setting information provided from the terminal device 202 to the power measurement device 101, the second operation can be started. Since manual switching to the first operation is possible, it is possible to avoid a situation in which the power measurement device 101 cannot communicate with any device.

  In the power measurement system and the communication control method according to the embodiment of the present invention, first, the power measurement device 101 performs wireless communication with the terminal device 202 without passing through other devices. Next, in a state where the terminal device 202 performs wireless communication with the power measurement device 101 without passing through another device, the terminal device 202 transmits setting information regarding the wireless LAN router 151 to the power measurement device 101. Next, the power measurement apparatus 101 communicates with the terminal apparatus 202 via the wireless LAN router 151 by using the setting information received from the terminal apparatus 202.

  As described above, the power measurement device 101 can execute an operation of directly communicating with the terminal device 202 and an operation of communicating with the terminal device 202 via the wireless LAN router 151. Acquisition and construction of a flexible communication network can be easily realized. For example, it is possible to connect to a wireless network without providing setting interfaces such as a wired connection unit, a liquid crystal screen, and a memory connection unit.

  Therefore, in the power measurement system and the communication control method according to the embodiment of the present invention, the connection setting to the wireless network can be performed with a simple configuration.

  The power measurement system according to the embodiment of the present invention is configured to perform wireless communication using a wireless LAN system, but is not limited thereto. The power measurement system 301 is configured to perform wireless communication using other wireless communication systems such as ZigBee (registered trademark), Bluetooth (registered trademark), a mobile communication system according to LTE, and WiMAX instead of the wireless LAN system. There may be.

  The above embodiment should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The above description includes the following features.

[Appendix 1]
A power measuring device,
A power measurement unit;
A wireless communication unit that performs wireless communication with a target device that is a communication partner, and includes a communication unit that can transmit measurement information based on a measurement result by the power measurement unit in a wireless signal;
The communication unit includes a first operation for communicating with the target device without passing through another device, relay of information transmitted and received between the power measurement device and the target device, and another device and the target. It is possible to perform a second operation of communicating with the target device via a relay device capable of relaying information transmitted to and received from the device in parallel,
The relay device is a router;
The said measurement information is an electric power measurement apparatus which shows at least any one of generated electric power in a house, electric power consumption, and buying and selling electric power.

[Appendix 2]
A power meter,
A target device,
The power measurement device wirelessly communicates with the target device, and can transmit measurement information based on a power measurement result in a wireless signal,
The power measuring device can perform wireless communication with the target device without passing through another device,
The target device relays information transmitted and received between the power measurement device and the target device in a state where wireless communication is performed with the power measurement device without passing through another device, and other devices Transmitting setting information related to a relay device capable of performing relay of information transmitted / received to / from the target device in parallel to the power measuring device;
The power measurement device communicates with the target device via the relay device by using the setting information received from the target device,
The relay device is a router;
The said measurement information is an electric power measurement system which shows at least any one of generated electric power in a house, electric power consumption, and buying and selling electric power.

DESCRIPTION OF SYMBOLS 11 Voltage conversion circuit 12 Arithmetic processing part 13 Communication part 14 Memory | storage part 15 Clock circuit 16 Power supply circuit 17 Operation part 101 Power measurement apparatus 151 Wireless LAN router (relay apparatus)
162 PCS
163 Power generation device 164 CT sensor 202 Terminal device 301 Power measurement system

Claims (6)

A power measuring device,
A power measurement unit;
A wireless communication unit that performs wireless communication with a target device that is a communication partner, and includes a communication unit that can transmit measurement information based on a measurement result by the power measurement unit in a wireless signal;
The communication unit includes a first operation for communicating with the target device without passing through another device, relay of information transmitted and received between the power measurement device and the target device, and another device and the target. A power measuring device capable of performing a second operation of communicating with the target device via a relay device capable of relaying information transmitted and received with the device in parallel.   The power measurement device according to claim 1, wherein the communication unit receives setting information related to the relay device from the target device in the first operation, and performs the second operation using the setting information. The power measuring device further includes an operation unit for switching between the first operation and the second operation,
When the first operation is performed on the operation unit while the first operation is being performed, the communication unit stops the first operation, starts the second operation, and performs the second operation. 3. The electric power according to claim 1, wherein when the second operation is performed on the operation unit in a state where the operation is performed, the second operation is stopped and the first operation is started. Measuring device. A power meter,
A target device,
The power measurement device wirelessly communicates with the target device, and can transmit measurement information based on a power measurement result in a wireless signal,
The power measuring device can perform wireless communication with the target device without passing through another device,
The target device relays information transmitted and received between the power measurement device and the target device in a state where wireless communication is performed with the power measurement device without passing through another device, and other devices Transmitting setting information related to a relay device capable of performing relay of information transmitted / received to / from the target device in parallel to the power measuring device;
The power measurement system is a power measurement system that communicates with the target device via the relay device by using the setting information received from the target device. A communication control method in a power measurement system including a power measurement device and a target device,
The power measurement device wirelessly communicates with the target device, and can transmit measurement information based on a power measurement result in a wireless signal,
The power measuring device performs wireless communication with the target device without passing through another device;
In a state in which the target device is performing wireless communication with the power measurement device without passing through another device, relay of information transmitted and received between the power measurement device and the target device, and other devices Transmitting setting information relating to a relay device capable of relaying information transmitted / received to / from the target device in parallel to the power measuring device;
The power control device includes a step of communicating with the target device via the relay device by using the setting information received from the target device. A communication control program used in a power measurement device capable of performing wireless communication with a target device that is a communication partner and transmitting measurement information based on a power measurement result in a wireless signal,
Performing a first operation of communicating with the target device without going through another device;
Via a relay device capable of relaying information transmitted / received between the power measuring device and the target device and relaying information transmitted / received between another device and the target device in parallel And a step of performing a second operation of communicating with the target device.

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