JP2015162907A - Power measurement apparatus, terminal apparatus, power measurement system, communication control method, and communication control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set an address of a power measurement apparatus to a terminal apparatus with a simple method while suppressing increase in a cost of the power measurement apparatus, in a power measurement system for transmitting measurement information on power.SOLUTION: A power measurement apparatus comprises a communication unit capable of transmitting measurement information included in a radio signal. The communication unit performs communication with a target apparatus through a relay apparatus capable of concurrently performing relay of information transmitted/received between the power measurement apparatus and the target apparatus and relay of information transmitted/received between another apparatus and the target apparatus; selectively processes information including a self address, which is an address of the power measurement apparatus itself, as a destination address of information included in a radio signal from the relay apparatus; and transmits a radio signal including the self address as a transmission source address together with the measurement information, to the relay apparatus. The power measurement apparatus notifies the target apparatus of information on the self address.

Description

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

  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 an example of a technique for setting an address of a network device, for example, Japanese Patent Laid-Open No. 2000-122944 (Patent Document 1) discloses the following configuration. That is, the network control device broadcasts a search packet for searching for a network device to other network devices by the search unit. The device that has received it returns a response with the source MAC address to the network control device. In response to this, the network control apparatus displays a list of devices on the UI, and is selected by the user, and when a setting value is input, the network setting is transmitted to the device to be set.

JP 2000-122944 A

  In the technique described in Patent Document 1, a network device that does not have an IP (Internet Protocol) address can be communicated using a MAC (Media Access Control) address.

  On the other hand, in a power measurement system that transmits measurement information about power using an IP address, for example, in order to acquire measurement information from the power measurement device in the terminal device, the host device uses DHCP (Dynamic Host Configuration Protocol). The user needs to set the assigned IP address in the terminal device.

  For this reason, for example, a liquid crystal screen or the like for the user to confirm the IP address is required in the power measurement device.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to measure power by a simple method while suppressing an increase in cost of a power measuring device in a power measuring system that transmits measurement information about power. To provide a power measurement device, a terminal device, a power measurement system, a communication control method, and a communication control program capable of setting a device address in a terminal device.

  (1) In order to solve the above problem, a power measurement device according to an aspect of the present invention communicates with a power measurement unit and a target device that is a communication partner, and measurement information based on a measurement result by the power measurement unit And a communication unit capable of transmitting by including in a wireless signal, the communication unit relaying information transmitted and received between the power measurement device and the target device, and another device and the target device. Communicates with the target device via a relay device capable of relaying information transmitted / received between them in parallel, and among the information included in the radio signal from the relay device, self Selectively processing the information including the self-address that is the address of the power measuring device, including the self-address as a transmission source address in the wireless signal together with the measurement information and transmitting the information to the relay device, Serial power measurement device further includes a notification unit for notifying information of the self-address to the target device.

  (3) In order to solve the above-described problem, a terminal device according to an aspect of the present invention is configured to relay information transmitted / received between a power measurement device and the terminal device, and between another device and the terminal device. A communication unit that establishes a communication connection with a relay device capable of relaying information transmitted and received in parallel; and after the communication connection is established, broadcasts predetermined information via the relay device, An address request unit that receives address information of the power measurement device transmitted from the power measurement device with respect to predetermined information, and the communication unit uses the address information to address the address of the power measurement device A power information request including an address is transmitted, and measurement information transmitted from the power measurement device in response to the power information request is received.

  (4) In order to solve the above problem, a power measurement system according to an aspect of the present invention includes a power measurement device and a target device that is a communication partner of the power measurement device, and the power measurement device includes power Measurement information based on the measurement result of the wireless signal can be transmitted and each of the power measurement device and the target device relays information transmitted and received between the power measurement device and the target device, and Establishing a communication connection with a relay device capable of performing relay of information transmitted and received between the other device and the target device in parallel, the power measurement device, after establishing the communication connection, A self-address information that is a self-address is transmitted via the relay device, and the target device receives the self-address information and includes the self-address as a destination address. Transmitted, a measurement information transmitted from the power measurement device to the power information request, receives the measurement information including the own address as the source address.

  (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 that is a communication partner of the power measurement device. The power measurement device is capable of transmitting measurement information based on the measurement result of power in a wireless signal, and each of the power measurement device and the target device is connected to the power measurement device and the target device. Establishing a communication connection with a relay device capable of relaying information transmitted / received between them and relaying information transmitted / received between another device and the target device in parallel; and After the measurement device establishes the communication connection, the measurement device transmits the self address information that is its own address via the relay device, and the target device transmits the self address information. , And transmits a power information request including the self address as a destination address, and is measurement information transmitted from the power measurement device in response to the power information request, and includes the self address as a source address Receiving measurement information.

  (6) In order to solve the above-described problem, a communication control program according to an aspect of the present invention communicates with a target apparatus that is a communication partner, and transmits measurement information based on a result of measuring power in a wireless signal. A communication control program used in a power measuring apparatus capable of notifying a computer of information on a self-address that is an address of the power measuring apparatus of the self, the power measuring apparatus of the self, Communication with the target device via a relay device capable of performing relay of information transmitted / received between the target device and information transmitted / received between another device and the target device in parallel And the step of communicating with the target device is included in the radio signal from the relay device. Of the information is a program that the selectively process the information including the own address as a destination address, and transmits the self-address to the relay device included in the wireless signal with the measurement information as a source address.

  (7) In order to solve the above-described problem, a communication control program according to an aspect of the present invention is a communication control program used in a terminal device, and is transmitted and received between a power measurement device and the terminal device to a computer. Establishing a communication connection with a relay device capable of relaying information to be transmitted and relaying information transmitted and received between another device and the terminal device in parallel, and establishing the communication connection Then, broadcasting predetermined information via the relay device, receiving address information of the power measuring device transmitted from the power measuring device with respect to the predetermined information, using the address information, Transmitting a power information request including an address of the power measuring device as a destination address; and the power in response to the power information request A program comprising the steps of: receiving measurement information transmitted from the measuring device.

  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.

  Further, the present invention can be realized not only as a terminal 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 terminal 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 address of an electric power measurement apparatus can be set to a terminal device by a simple method, suppressing the cost increase of an electric power measurement apparatus.

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 configuration of a terminal device in the power measurement system according to the embodiment of the present invention. FIG. 3 is a flowchart defining an example of an operation procedure when the power measurement system according to the embodiment of the present invention transmits power 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 communicates with a power measurement unit and a target device that is a communication partner, and transmits measurement information based on a measurement result by the power measurement unit in a wireless signal. A communication unit capable of relaying information transmitted / received between the power measuring device and the target device, and information transmitted / received between the other device and the target device. Among the information included in the radio signal from the relay device that communicates with the target device via a relay device capable of performing relaying in parallel, and the address of the power measuring device itself as a destination address Information including the self address is selectively processed, and the self address is included in the radio signal together with the measurement information as a transmission source address and transmitted to the relay device, and the power measurement device further includes: Comprising a notification unit for notifying information of the serial self-address to the target device.

  As described above, the configuration in which the power measurement device notifies the target device of its own address eliminates the need to provide the power measurement device with a liquid crystal screen or the like for the user to confirm the address of the power measurement device. In addition, since the target device can automatically acquire the address of the power measurement device, the user does not need to recognize the address of the power measurement device and set it in the target device. Therefore, in the power measurement device according to the embodiment of the present invention, in the power measurement system that transmits the measurement information related to the power, the address of the power measurement device is assigned to the terminal device by a simple method while suppressing the cost increase of the power measurement device. Can be set to

  (2) Preferably, when the notification unit receives predetermined information from the target device via the relay device and the communication unit, the notification unit receives the self address information via the communication unit and the relay device. Send to.

  With such a configuration, the power measurement device can notify the target device of its own address at an appropriate timing. For example, it is not necessary for the power measurement device to broadcast its own address information, which increases processing load and communication. An increase in traffic can be prevented.

  (3) The terminal device according to an embodiment of the present invention relays information transmitted / received between a power measurement device and the terminal device, and transmits / receives information transmitted / received between another device and the terminal device. A communication unit that establishes a communication connection with a relay device capable of performing relay in parallel; and after the communication connection is established, broadcasts predetermined information via the relay device, and the power for the predetermined information An address request unit that receives address information of the power measurement device transmitted from the measurement device, and the communication unit uses the address information to send a power information request that includes the address of the power measurement device as a destination address. Transmitting and receiving measurement information transmitted from the power measuring device in response to the power information request.

  As described above, the configuration in which the terminal device requests and acquires the address information from the power measurement device eliminates the need for providing the power measurement device with a liquid crystal screen or the like for the user to confirm the address of the power measurement device. Further, since the terminal device can automatically acquire the address of the power measuring device, the user does not need to recognize the address of the power measuring device and set it in the terminal device. Therefore, in the terminal device according to the embodiment of the present invention, in the power measurement system that transmits the measurement information related to the power, the address of the power measurement device is assigned to the terminal device by a simple method while suppressing the cost increase of the power measurement device. Can be set. In addition, since the power measurement device can notify the terminal device of its own address at an appropriate timing, for example, it is not necessary for the power measurement device to broadcast its address information, which increases processing load and communication traffic. Can be prevented.

  (4) A power measurement system according to an embodiment of the present invention includes a power measurement device and a target device that is a communication partner of the power measurement device, and the power measurement device includes measurement information based on a power measurement result. Can be transmitted in a wireless signal, and each of the power measurement device and the target device relays information transmitted and received between the power measurement device and the target device, and another device and the target device. Establishes a communication connection with a relay device capable of relaying information transmitted and received in parallel with the power measuring device, after establishing the communication connection, the power measuring device Information is transmitted via the relay device, the target device receives the information of the self address, transmits a power information request including the self address as a destination address, and transmits the power information request to the power information request. A measurement information transmitted from the power measuring device and receives the measurement information including the own address as the source address.

  As described above, the configuration in which the power measurement device notifies the target device of its own address eliminates the need to provide the power measurement device with a liquid crystal screen or the like for the user to confirm the address of the power measurement device. In addition, since the target device can automatically acquire the address of the power measurement device, the user does not need to recognize the address of the power measurement device and set it in the target device. Therefore, in the power measurement system according to the embodiment of the present invention, in the power measurement system that transmits the measurement information about the power, the address of the power measurement device is set in a simple manner while suppressing the cost increase of the power measurement device. Can be set to

  (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 that is a communication partner of the power measurement device, and the power measurement device Can transmit the measurement information based on the measurement result of power in a wireless signal, and each of the power measurement device and the target device can transmit and receive information between the power measurement device and the target device. Establishing a communication connection with a relay apparatus capable of performing relay and relay of information transmitted and received between another apparatus and the target apparatus in parallel; and After the establishment of the self-address, the step of transmitting the self-address information, which is its own address, via the relay device, and the target device receives the self-address information and receives the self-address. A power information request including a destination address, and receiving measurement information transmitted from the power measurement device in response to the power information request, the measurement information including the self address as a source address. Including.

  As described above, the configuration in which the power measurement device notifies the target device of its own address eliminates the need to provide the power measurement device with a liquid crystal screen or the like for the user to confirm the address of the power measurement device. In addition, since the target device can automatically acquire the address of the power measurement device, the user does not need to recognize the address of the power measurement device and set it in the target device. Therefore, in the communication control method according to the embodiment of the present invention, in the power measurement system that transmits the measurement information about the power, the address of the power measurement device is set in a simple manner while suppressing the cost increase of the power measurement device. Can be set to

  (6) The communication control program according to the embodiment of the present invention is used in a power measurement apparatus that communicates with a target apparatus that is a communication partner and can transmit measurement information based on a result of measuring power in a wireless signal. A communication control program for notifying a computer of information on a self-address that is an address of the power measurement device of the device, and transmission / reception between the power measurement device of the device and the target device And the step of communicating with the target device via a relay device capable of performing relay of information transmitted and received between the other device and the target device in parallel. In the step of communicating with the target device, the destination address of the information included in the radio signal from the relay device is The information including the own address selectively processed, a program for transmitting the self-address to the relay device included in the wireless signal with the measurement information as a source address Te.

  As described above, the configuration in which the power measurement device notifies the target device of its own address eliminates the need to provide the power measurement device with a liquid crystal screen or the like for the user to confirm the address of the power measurement device. In addition, since the target device can automatically acquire the address of the power measurement device, the user does not need to recognize the address of the power measurement device and set it in the target device. Therefore, in the communication control program according to the embodiment of the present invention, in the power measurement system that transmits the measurement information about the power, the address of the power measurement device is set in a simple manner while suppressing the cost increase of the power measurement device. Can be set to

  (7) A communication control program according to an embodiment of the present invention is a communication control program used in a terminal device, and relays information transmitted and received between a power measurement device and the terminal device to a computer, and Establishing a communication connection with a relay device capable of relaying information transmitted and received between the other device and the terminal device in parallel; and after establishing the communication connection, Broadcasting via a relay device, receiving the address information of the power measuring device transmitted from the power measuring device with respect to the predetermined information, and using the address information, the address of the power measuring device is set. A step of transmitting a power information request including a destination address, and measurement information transmitted from the power measurement device in response to the power information request A program including the steps of receiving.

  As described above, the configuration in which the terminal device requests and acquires the address information from the power measurement device eliminates the need for providing the power measurement device with a liquid crystal screen or the like for the user to confirm the address of the power measurement device. Further, since the terminal device can automatically acquire the address of the power measuring device, the user does not need to recognize the address of the power measuring device and set it in the terminal device. Therefore, in the terminal device according to the embodiment of the present invention, in the power measurement system that transmits the measurement information related to the power, the address of the power measurement device is assigned to the terminal device by a simple method while suppressing the cost increase of the power measurement device. Can be set. In addition, since the power measurement device can notify the terminal device of its own address at an appropriate timing, for example, it is not necessary for the power measurement device to broadcast its address information, which increases processing load and communication traffic. Can be prevented.

  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 device 101 includes a voltage conversion circuit 11, an arithmetic processing unit (notification 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 performs wireless communication with a target device that is a communication partner, for example, the terminal device 202. More specifically, the communication unit 13 exchanges various information with the terminal device 202 via 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. For example, the communication unit 13 can transmit measurement information based on a measurement result by the power measurement unit in a wireless signal.

  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 stores the IP address assigned from the wireless LAN router 151 in the storage unit 14.

  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.

  More specifically, the communication unit 13 selectively processes information including the self address that is the address of the power measuring apparatus 101 as a destination address among the information included in the wireless signal from the wireless LAN router 151. Further, the communication unit 13 includes the self address acquired from the storage unit 14 as a transmission source address together with the measurement information in the wireless signal and transmits the wireless signal to the wireless LAN router 151.

  In addition, the arithmetic processing unit 12 notifies the terminal device 202 via the communication unit 13 of information on the self address that is the address of the power measuring apparatus 101 of itself.

  For example, when the arithmetic processing unit 12 receives predetermined information from the terminal device 202 via the wireless LAN router 151 and the communication unit 13, the arithmetic processing unit 12 transmits information on the self address to the terminal device 202 via the communication unit 13 and the wireless LAN router 151. To do.

  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 configuration of a terminal device in the power measurement system according to the embodiment of the present invention.

  With reference to FIG. 2, the terminal device 202 includes a communication unit 21, an arithmetic processing unit (address request unit) 22, a display unit 23, an operation unit 24, and a storage unit 25.

  The arithmetic processing unit 22 is, for example, a CPU or a microcomputer, and performs various arithmetic processing and control of each unit.

  The storage unit 25 is a flash memory, for example, and holds an application program for power monitoring.

  The operation unit 24 receives a user operation and outputs an operation signal corresponding to the operation content to the arithmetic processing unit 22.

  The communication unit 21 establishes a communication connection with the wireless LAN router 151. The communication unit 21 exchanges various types of information with other devices such as the power measurement device 101 via 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 22 outputs various information to the communication unit 21. The communication unit 21 generates a wireless signal including information received from the arithmetic processing unit 22 and transmits the wireless signal to another device such as the power measurement device 101 via the wireless LAN router 151.

  In addition, the communication unit 21 acquires information included in the wireless signal received from the wireless LAN router 151, and outputs the acquired information to the arithmetic processing unit 22.

  Specifically, for example, the communication unit 21 stores the IP address assigned from the wireless LAN router 151 in the storage unit 25.

  For example, the arithmetic processing unit 22 outputs power request information to the communication unit 21. The communication unit 21 generates a wireless signal including the power request information received from the arithmetic processing unit 22 and transmits the wireless signal to the power measurement device 101 via the wireless LAN router 151.

  In addition, the communication unit 21 acquires measurement information from the power measurement device 101 included in the wireless signal received from the wireless LAN router 151, and outputs the acquired measurement information to the arithmetic processing unit 22.

  After the communication connection between the communication unit 21 and the wireless LAN router 151 is established, the arithmetic processing unit 22 broadcasts predetermined information via the communication unit 21 and measures the power transmitted from the power measurement device 101 to the predetermined information. The address information of the device 101 is received via the wireless LAN router 151 and the communication unit 21 and stored in the storage unit 25.

  Using the address information, the communication unit 21 transmits a power information request including the address of the power measurement device 101 as a destination address, and receives measurement information transmitted from the power measurement device 101 in response to the power information request.

  The arithmetic processing unit 22 loads an application program held in the storage unit 25 to start an application for power monitoring, and processes measurement information received from the communication unit 21 using the application, thereby displaying the display unit. In 23, various power graph display, charge display, carbon dioxide reduction amount display, and the like are performed.

[Operation]
Next, transmission operation of power 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. 3 is a flowchart defining an example of an operation procedure when the power measurement system according to the embodiment of the present invention transmits power measurement information.

  After establishing a communication connection with the wireless LAN router 151, the power measuring apparatus 101 transmits information about its own address assigned by the wireless LAN router 151 via the wireless LAN router 151.

  The terminal device 202 receives information on the self address, transmits a power information request including the self address as a destination address, and is measurement information transmitted from the power measurement device 101 in response to the power information request. Is received as a source address.

  Specifically, referring to FIG. 3, first, power measurement apparatus 101 establishes a communication connection with wireless LAN router 151 (step S1) and is in a state where an IP address is assigned from wireless LAN router 151. (Step S2).

  Further, the terminal device 202 establishes a communication connection with the wireless LAN router 151 (step S3) and is in a state where an IP address is assigned from the wireless LAN router 151 (step S4).

  In such a state, the terminal device 202 activates an application for power monitoring (step S5).

  Next, the terminal device 202 broadcasts a device search command using the own IP address acquired from the storage unit 25 as a transmission source address via the wireless LAN router 151 by using, for example, UDP with the activation of this application ( Step S6).

  Next, the power measurement apparatus 101 acquires a device search command broadcast from the terminal apparatus 202 (step S7). Note that this device search command is ignored by devices other than the power measurement device 101.

  Next, in response to the acquisition of the device search command, the power measuring device 101 holds the IP address of the terminal device 202 included as the source address in the device search command as the destination address in accordance with, for example, TCP. IP address information including its own IP address is created. Then, the power measuring apparatus 101 transmits the IP address information to the terminal apparatus 202 via the wireless LAN router 151 (step S8).

  Next, the terminal device 202 stores the IP address information received from the power measurement device 101 as, for example, the storage unit 25 as the IP address of the power measurement device 101 (step S9).

  Next, the terminal device 202 transmits time information with the IP address of the held power measurement device 101 as the destination address to the wireless LAN router 151 in order to obtain the correct time measurement information from the power measurement device 101. (Step S10).

  Next, the power measuring device 101 receives time information from the terminal device 202 via the wireless LAN router 151, and sets its own clock based on the received time information. The power measurement apparatus 101 uses this clock to create measurement information in which various power measurement results are associated with times (step S11).

  Next, the terminal device 202 transmits a power information request with the IP address of the held power measurement device 101 as a destination address to the wireless LAN router 151 (step S12).

  Next, the power measurement apparatus 101 receives a power information request from the terminal apparatus 202 via the wireless LAN router 151, and uses the IP address of the terminal apparatus 202 as a destination address to send measurement information to the terminal apparatus 202 via the wireless LAN router 151. Transmit (step S13).

  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 S14).

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 S10) and to set a clock in the power measurement device 101 (step S11).

  In the power measurement system 301, the IP address information is transmitted from the power measurement apparatus 101 in response to the device search command transmitted from the terminal apparatus 202. However, the present invention is not limited to this. If there are no problems such as security and communication load, for example, the power measurement apparatus 101 may periodically broadcast IP address information via the wireless LAN router 151.

  By the way, in an electric power measurement system that transmits electric power measurement information using an IP address, for example, in order to acquire measurement information from the electric power measurement device in the terminal device, an IP address assigned to the electric power measurement device by DHCP is used. The user needs to set the terminal device. For this reason, for example, a liquid crystal screen or the like for the user to confirm the IP address is required in the power measurement device.

  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. Further, the communication unit 13 communicates with the terminal device 202 via the wireless LAN router 151, and among the information included in the wireless signal from the wireless LAN router 151, the address of its own power measuring device 101 is used as the destination address. Selectively process information containing a certain self-address. In addition, the communication unit 13 includes the self address as a transmission source address in the wireless signal together with the measurement information, and transmits the wireless address to the wireless LAN router 151. In addition, the arithmetic processing unit 12 notifies the terminal device 202 of the self address information via the communication unit 13.

  As described above, the configuration in which the power measurement apparatus 101 notifies the terminal apparatus 202 of its own address eliminates the need to provide the power measurement apparatus 101 with a liquid crystal screen or the like for the user to confirm the address of the power measurement apparatus 101. Further, since the terminal device 202 can automatically acquire the address of the power measuring device 101, the user does not need to recognize the address of the power measuring device 101 and set it in the terminal device 202.

  Therefore, in the power measurement device according to the embodiment of the present invention, in the power measurement system that transmits the measurement information related to the power, the address of the power measurement device is assigned to the terminal device by a simple method while suppressing the cost increase of the power measurement device. Can be set to

  In the power measurement device according to the embodiment of the present invention, when the arithmetic processing unit 12 receives predetermined information from the terminal device 202 via the wireless LAN router 151 and the communication unit 13, the arithmetic processing unit 12 receives the self address information. And transmitted to the terminal device 202 via the wireless LAN router 151.

  With such a configuration, the power measurement apparatus 101 can notify the terminal apparatus 202 of its own address at an appropriate timing. For example, it is not necessary for the power measurement apparatus 101 to broadcast its own address information. An increase and an increase in communication traffic can be prevented.

  In the terminal device according to the embodiment of the present invention, the communication unit 21 establishes a communication connection with the wireless LAN router 151. After the communication connection is established, the arithmetic processing unit 22 broadcasts predetermined information via the wireless LAN router 151 and receives the address information of the power measuring device 101 transmitted from the power measuring device 101 for the predetermined information. . Then, using the address information, the communication unit 21 transmits a power information request including the address of the power measurement device 101 as a destination address, and receives measurement information transmitted from the power measurement device 101 in response to the power information request. To do.

  As described above, the power measuring apparatus 101 is provided with a liquid crystal screen or the like for the user to confirm the address of the power measuring apparatus 101 by the configuration in which the terminal apparatus 202 requests and obtains address information from the power measuring apparatus 101. There is no need. Further, since the terminal device 202 can automatically acquire the address of the power measuring device 101, the user does not need to recognize the address of the power measuring device 101 and set it in the terminal device 202.

  Therefore, in the terminal device according to the embodiment of the present invention, in the power measurement system that transmits the measurement information related to the power, the address of the power measurement device is assigned to the terminal device by a simple method while suppressing the cost increase of the power measurement device. Can be set.

  Further, since the power measuring apparatus 101 can notify the terminal apparatus 202 of its own address at an appropriate timing, for example, it is not necessary for the power measuring apparatus 101 to broadcast its own address information, increasing the processing load and communication traffic. Can be prevented.

  In the power measurement system and the communication control method according to the embodiment of the present invention, first, the power measurement device 101 and the terminal device 202 relay information transmitted and received between the power measurement device 101 and the terminal device 202. In addition, a communication connection is established with the wireless LAN router 151 that can relay information transmitted and received between the other device and the terminal device 202 in parallel. Next, after establishing a communication connection, the power measuring apparatus 101 transmits information about its own address, which is its own address, via the wireless LAN router 151. Next, the terminal device 202 receives the information on the self address, transmits a power information request including the self address as a destination address, and uses the measurement information transmitted from the power measurement device 101 in response to the power information request. Therefore, measurement information including the self address as a transmission source address is received.

  As described above, the configuration in which the power measurement apparatus 101 notifies the terminal apparatus 202 of its own address eliminates the need to provide the power measurement apparatus 101 with a liquid crystal screen or the like for the user to confirm the address of the power measurement apparatus 101. Further, since the terminal device 202 can automatically acquire the address of the power measuring device 101, the user does not need to recognize the address of the power measuring device 101 and set it in the terminal device 202.

  Therefore, in the power measurement system and the communication control method according to the embodiment of the present invention, in the power measurement system that transmits the measurement information related to the power, the power measurement device can be controlled in a simple manner while suppressing the cost increase of the power measurement device. An address can be set in the terminal device.

  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 communication unit that communicates with a target device that is a communication partner, and that can transmit measurement information based on a measurement result by the power measurement unit in a wireless signal;
The communication unit performs relaying of information transmitted / received between the power measuring device and the target device of its own and relaying of information transmitted / received between another device and the target device in parallel. Among the information included in the radio signal from the relay device that communicates with the target device via a relay device capable of receiving information including the self address that is the address of the power measuring device of its own as a destination address Selectively processing, including the self-address as a transmission source address together with the measurement information and transmitting it to the relay device,
The power measuring device further includes:
A notification unit for notifying the target device of the self-address information;
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 terminal device,
Communication with a relay device capable of relaying information transmitted / received between a power measuring device and the terminal device and relaying information transmitted / received between another device and the terminal device in parallel A communication unit for establishing a connection;
After the communication connection is established, an address request unit that broadcasts predetermined information via the relay device and receives address information of the power measurement device transmitted from the power measurement device with respect to the predetermined information, and
The communication unit transmits a power information request including the address of the power measurement device as a destination address using the address information, and receives measurement information transmitted from the power measurement device in response to the power information request. ,
The relay device is a router;
The said measurement information is a terminal device which shows at least any one of generated electric power in a house, power consumption, and buying and selling power.

[Appendix 3]
A power meter,
A target device that is a communication partner of the power measuring device;
The power measurement device is capable of transmitting measurement information based on a power measurement result in a wireless signal,
Each of the power measuring device and the target device relays information transmitted / received between the power measuring device and the target device, and relays information transmitted / received between another device and the target device. Establish a communication connection with the relay device that can be performed in parallel,
The power measuring device, after establishing the communication connection, transmits information of the self address that is its own address via the relay device,
The target device receives the information of the self address, transmits a power information request including the self address as a destination address, and is measurement information transmitted from the power measurement device in response to the power information request. , Receiving measurement information including the self address as a source address,
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.

11 Voltage Conversion Circuit 12 Arithmetic Processing Unit (Notification Unit)
DESCRIPTION OF SYMBOLS 13 Communication part 14 Memory | storage part 15 Clock circuit 16 Power supply circuit 17 Operation part 21 Communication part 22 Operation processing part (address request part)
23 Display Unit 24 Operation Unit 25 Storage Unit 101 Power Measurement Device 151 Wireless LAN Router (Relay Device)
162 PCS
163 Power generation device 164 CT sensor 202 Terminal device 301 Power measurement system

Claims (7)

A power measuring device,
A power measurement unit;
A communication unit that communicates with a target device that is a communication partner, and that can transmit measurement information based on a measurement result by the power measurement unit in a wireless signal;
The communication unit performs relaying of information transmitted / received between the power measuring device and the target device of its own and relaying of information transmitted / received between another device and the target device in parallel. Among the information included in the radio signal from the relay device that communicates with the target device via a relay device capable of receiving information including the self address that is the address of the power measuring device of its own as a destination address Selectively processing, including the self-address as a transmission source address together with the measurement information and transmitting it to the relay device,
The power measuring device further includes:
A power measurement device comprising a notification unit that notifies the target device of information on the self-address.   The notification unit, when receiving predetermined information from the target device via the relay device and the communication unit, transmits the information of the self address to the target device via the communication unit and the relay device. The power measuring device according to 1. A terminal device,
Communication with a relay device capable of relaying information transmitted / received between a power measuring device and the terminal device and relaying information transmitted / received between another device and the terminal device in parallel A communication unit for establishing a connection;
After the communication connection is established, an address request unit that broadcasts predetermined information via the relay device and receives address information of the power measurement device transmitted from the power measurement device with respect to the predetermined information, and
The communication unit transmits a power information request including the address of the power measurement device as a destination address using the address information, and receives measurement information transmitted from the power measurement device in response to the power information request. Terminal equipment. A power meter,
A target device that is a communication partner of the power measuring device;
The power measurement device is capable of transmitting measurement information based on a power measurement result in a wireless signal,
Each of the power measuring device and the target device relays information transmitted / received between the power measuring device and the target device, and relays information transmitted / received between another device and the target device. Establish a communication connection with the relay device that can be performed in parallel,
The power measuring device, after establishing the communication connection, transmits information of the self address that is its own address via the relay device,
The target device receives the information of the self address, transmits a power information request including the self address as a destination address, and is measurement information transmitted from the power measurement device in response to the power information request. A power measurement system that receives measurement information including the self address as a source address. A communication control method in a power measurement system comprising a power measurement device and a target device that is a communication partner of the power measurement device,
The power measurement device is capable of transmitting measurement information based on a power measurement result in a wireless signal,
Each of the power measuring device and the target device relays information transmitted / received between the power measuring device and the target device, and relays information transmitted / received between another device and the target device. Establishing a communication connection with a relay device that can be performed in parallel;
The power measuring device, after establishing the communication connection, transmitting information of a self address that is a self address through the relay device;
Measurement information transmitted from the power measuring device in response to the power information request, wherein the target device receives the information of the self address, transmits a power information request including the self address as a destination address, and And receiving measurement information including the self address as a source address. A communication control program used in a power measurement device that communicates with a target device that is a communication partner and can transmit measurement information based on a result of measuring power in a wireless signal,
Notifying the target device of information on a self-address that is an address of the power measuring device of the device;
Relay device capable of relaying information transmitted / received between its own power measuring device and the target device, and relaying information transmitted / received between another device and the target device in parallel A program for executing the step of communicating with the target device via
In the step of communicating with the target device, information including the self address as a destination address among information included in a radio signal from the relay device is selectively processed, and the self address is used as a source address. A communication control program that is included in a radio signal together with measurement information and is transmitted to the relay device. A communication control program used in a terminal device,
Communication with a relay device capable of relaying information transmitted / received between a power measuring device and the terminal device and relaying information transmitted / received between another device and the terminal device in parallel Establishing a connection;
Broadcasting the predetermined information via the relay device after the communication connection is established;
Receiving address information of the power measuring device transmitted from the power measuring device with respect to the predetermined information;
Using the address information, transmitting a power information request including the address of the power measuring device as a destination address;
Receiving a measurement information transmitted from the power measurement device in response to the power information request.

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