Method for acquiring setting information stored in electronic watt-hour meter into host device

Abstract

To provide a method for accurately acquiring setting information stored in an electronic watt-hour meter by a host device.SOLUTION: Setting information stored in an internal memory of an electronic watt-hour meter 1 is directly read out via communication from an infrared communication port of the electronic watt-hour meter 1 to a PC 3 in a setting information reading step 101. In a data format conversion step 102, the read setting information is converted, in the PC 3, into a data format used for an initialization file of a host device 5. In a setting information acquisition step 103, the setting information converted into the data format is acquired by the host device 5 either through communication or via a USB memory 8 storing the setting information, directly from the PC 3. Finally, in a setting information expansion step 104, the setting information acquired by the host device 5 is expanded to the initialization file of the host device 5 in the host device 5.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a method for reading setting information stored in an electronic watt-hour meter and importing the read setting information into a host device of the electronic watt-hour meter. [Background technology]

[0002] Conventionally, a data collection method for measuring electrical energy such as power consumption at multiple measurement points with a measuring device and collecting the measurement data at one location for centralized monitoring is disclosed in Patent Document 1. For example, in an energy monitoring system in which a data collection device is installed in a central monitoring room in a factory and electrical energy measuring devices such as watt-hour meters are installed in multiple electrical rooms in the factory, the measurement data measured by the measuring devices in each electrical room is collected in the data collection device installed in one central monitoring room via a wired / wireless converter.

[0003] At this time, information for identifying each measuring device, such as the station number of each measuring device, is stored in advance in the internal memory of the data collecting device of the higher-level device. When the measuring device is provided on the secondary side of the instrument transformer, information such as the transformation ratio constant and multiplying factor for converting the amount of power used on the primary side is generally also stored in the internal memory of the data collecting device as setting information for the measuring device. The electric energy data measured by the measuring device is transmitted to the data collecting device together with setting information such as the station number stored in advance in the internal memory of the measuring device. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication 2015-7875 Summary of the Invention [Problem to be solved by the invention]

[0005] In the above-mentioned conventional data collection method, the measurement data of each measuring device collected by the data collection device is identified based on the setting information of each measuring device pre-stored in the internal memory of the data collection device, and the measurement value of the electric energy is converted based on the setting information of each measuring device. Therefore, it is necessary that the setting information of each measuring device is accurately registered and stored in advance in the internal memory of the data collection device.

[0006] The present invention aims to provide a method for importing setting information stored in an electronic watt-hour meter, which is an electric energy measuring device, into a higher-level device, which can read out setting information stored in the electronic watt-hour meter and accurately import the read-out setting information into the higher-level device of the electronic watt-hour meter. [Means for solving the problem]

[0007] For this purpose, the present invention provides A setting information reading step of reading setting information of the electronic watt-hour meter stored in an internal memory of the electronic watt-hour meter directly to an information processing device through communication from an external communication port of the electronic watt-hour meter; a data format conversion step of converting the setting information read into the information processing device into a data format used in an initial setting file of a host device of the electronic watt-hour meter in the communication network; a setting information acquisition step of acquiring the setting information whose data format has been converted from the information processing device directly into the upper level device via communication or via a storage medium that stores the setting information; a setting information expansion step of expanding the setting information taken into the upper device into an initial setting file of the upper device in the upper device; The present invention provides a method for inputting setting information stored in an electronic watt-hour meter into a higher-level device.

[0008] According to this configuration, in a setting information reading step, the setting information of the electronic watt-hour meter stored in the internal memory of the electronic watt-hour meter is read directly to the information processing device via communication from the external communication port of the electronic watt-hour meter. In a data format conversion step, the read setting information of the electronic watt-hour meter is converted in the information processing device into a data format used in the initial setting file of the higher-level device of the electronic watt-hour meter. Then, in a setting information acquisition step, the setting information whose data format has been converted is directly imported into the higher-level device from the information processing device via communication or via a storage medium that stores the setting information. In a setting information expansion step, the setting information imported into the higher-level device is expanded by the higher-level device into the initial setting file of the higher-level device.

[0009] That is, the correct setting information of the electronic watt-hour meter stored in the internal memory of the electronic watt-hour meter is read directly from the external communication port of the electronic watt-hour meter to the information processing device via communication, and then directly imported from the information processing device to the higher-level device via communication or via a storage medium that stores the setting information. Therefore, the setting information stored in the electronic watt-hour meter is transmitted between devices as is, without being manually manipulated, until it is imported into the higher-level device. Therefore, the setting information stored in the electronic watt-hour meter is accurately imported from the electronic watt-hour meter to the higher-level device without being changed by human error while being transmitted between devices.

[0010] Furthermore, the present invention is characterized in that in the setting information deployment step, the host device checks whether or not there is an error in the setting information imported into the host device.

[0011] According to this configuration, it is possible to detect errors such as the inclusion of meter identification information that is not originally possible in the same system in the setting information imported into the host device. Therefore, the setting information stored in the electronic watt-hour meter is imported from the electronic watt-hour meter to the host device more accurately.

[0012] The present invention also provides a method for producing a method for manufacturing a semiconductor device comprising the steps of: In the data format conversion step, additional setting information to be added to the upper device is added to the setting information; In the setting information acquisition step, the additional setting information is directly imported into the upper level device together with the setting information from the information processing device. It is characterized by:

[0013] According to this configuration, additional setting information to be added to the host device can be directly imported into the host device together with the setting information from the information processing device, thereby diversifying the information to be imported into the host device.

[0014] In addition, the present invention is characterized in that the setting information includes at least a multiplying factor used for converting the measurement value of the electronic watt-hour meter, a transformation ratio constant, and meter identification information of the electronic watt-hour meter.

[0015] According to this configuration, at least the multiplying factor, the transformation ratio constant, and the meter identification information of the electronic watt-hour meter used to convert the measurement value of the electronic watt-hour meter are read out from the electronic watt-hour meter and accurately imported into the higher-level device. Effect of the Invention

[0016] According to the present invention, it is possible to provide a method for importing setting information stored in an electronic watt-hour meter into a higher-level device, which can read out setting information stored in an electronic watt-hour meter and accurately import the read-out setting information into the higher-level device of the electronic watt-hour meter. [Brief description of the drawings]

[0017] [Figure 1] FIG. 2 is a diagram showing data transmission and reception in a method for importing setting information stored in an electronic watt-hour meter into a higher-level device according to an embodiment of the present invention. [Diagram 2] 2 is a block diagram illustrating a communication network when the higher-level device illustrated in FIG. 1 corresponds to a central monitoring device. [Diagram 3] 5 is a flowchart showing a method for importing setting information stored in an electronic watt-hour meter into a higher-level device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Next, an embodiment of a method for importing setting information stored in an electronic watt-hour meter into a higher-level device according to the present invention will be described.

[0019] FIG. 1 is a diagram showing a schematic diagram of data transfer between devices in a method for importing setting information stored in an electronic watt-hour meter into a higher-level device according to one embodiment of the present invention.

[0020] The electronic watt-hour meter 1 is configured with components such as an electronic circuit board built into a housing. The electronic watt-hour meter 1 has a display unit 1a that displays a measured value on its front side, and a terminal unit 1b below the display unit 1a to which each wire is connected. The electronic watt-hour meter 1 in this embodiment is a three-phase three-wire type, and a power supply voltage is applied to each of the power supply terminals P1 terminal, P2 terminal, and P3 terminal of the terminal unit 1b from the power supply wires of the first, second, and third phases of a three-phase power supply via a VT (voltage converter). The P1 terminal is connected to the output terminal 1u of the VT, the P2 terminal is connected to the output terminals 1v and 3u that are grounded, and the P3 terminal is connected to the output terminal 3v. The voltage between the first and second phases of the three-phase power supply appears between the output terminals 1u and 1v of the VT, and the voltage between the second and third phases of the three-phase power supply appears between the output terminals 3u and 3v. Therefore, a voltage between phases 1 and 2 of the three-phase power supply is applied between the P1 terminal and the P2 terminal, and a voltage between phases 3 and 2 of the three-phase power supply is applied between the P3 terminal and the P2 terminal.

[0021] A load 2 is connected to the three-phase power supply. When load 2 is connected, phase currents according to the load capacity of load 2 flow in phases 1 and 3 of the three-phase power supply. The phase current flowing in phase 1 of the three-phase power supply is detected between terminals 1S and 1L of terminal section 1b from the power wiring for phase 1, via output terminals 1K and 1L of the CT (current transformer), and the phase current flowing in phase 3 is detected between terminals 3S and 3L of terminal section 1b from the power wiring for phase 3, via output terminals 3K and 3L of the CT. The 1L and 3L terminals are grounded along with the P2 terminal.

[0022] The electronic watt-hour meter 1 multiplies the 1-side voltage V1 applied between the P1 and P2 terminals by the 1-side current detected between the 1S and 1L terminals to calculate the 1-side active power W1 and the 1-side reactive power var1. It also multiplies the 3-side voltage V3 applied between the P3 and P2 terminals by the 3-side current detected between the 3S and 3L terminals to calculate the 3-side active power W3 and the 3-side reactive power var3. It then calculates the combined active power ΣW of the 1-side active power W1 and the 3-side active power W3, and the combined reactive power Σvar of the 1-side reactive power var1 and the 3-side reactive power var3, and displays them on the display unit 1a. The electronic watt-hour meter 1 also calculates the voltage phase difference θp1-p3 between the 1-side voltage V1 and the 3-side voltage V3.

[0023] The electronic watt-hour meter 1 has an infrared communication port and a metering pulse output port (not shown) on the front side. From this infrared communication port, various measurement data measured by the electronic watt-hour meter 1 is output by infrared rays to the outside of the electronic watt-hour meter 1. In this embodiment, the measurement data output includes active energy, reactive energy, active power (total active power ΣW), and reactive power (total reactive power Σvar), etc.

[0024] In addition, various setting information set in the electronic watt-hour meter 1 is output from the infrared communication port. In this embodiment, as this setting information, a meter ID (identification information) for identifying the serial number and manufacturing year of the electronic watt-hour meter 1, a phase line type, rated voltage, and rated current of the electronic watt-hour meter 1 are output. Also, a multiplying factor for the display value of the display unit 1a, and a transformation ratio constant of VT·CT are output. Furthermore, if the electronic watt-hour meter 1 is a pulse meter that outputs a pulse according to the amount of power used, the pulse type, pulse constant, and pulse width of the metering pulse output from the metering pulse output port are output. Furthermore, if the electronic watt-hour meter 1 is an RS485 meter that communicates by RS485 serial communication, the terminal address, communication speed, parity, etc. of the meter are output.

[0025] A PC (personal computer) 3 detects infrared rays output from an infrared communication port with a sensor 4, which is an infrared communication device, and inputs various measurement data measured by the electronic watt-hour meter 1 together with the above-mentioned setting information via wireless communication using Bluetooth (registered trademark). Note that, although communication between the electronic watt-hour meter 1 and the PC 3 is performed by infrared communication in this embodiment, it can also be performed by other communication methods such as an RS485 communication method, a current loop communication method, or a wired communication method via a cable.

[0026] The higher-level device 5 corresponds to a central monitoring device, a central meter reading device, etc., and is a device located higher than the electronic watt-hour meter 1 in a communication network in which the central monitoring device, the central meter reading device, etc. are placed. The central monitoring device is, for example, a device that monitors, from a single location in a central monitoring room, the amount of electricity used measured by electronic watt-hour meters installed in each electrical room in a factory, the status of lighting equipment and air conditioning equipment installed in various locations in the factory, etc. The central meter reading device is, for example, a device that centrally reads the amount of electricity used measured by each electronic watt-hour meter installed in multiple locations in each tenant in a tenant building.

[0027] FIG. 2 is a block diagram illustrating a communication network when the higher-level device 5 corresponds to a central monitoring device, where (a) is an example of a communication network in a system configuration using an RS (Remote Station) panel method, and (b) is an example of a communication network in a system configuration using a direct connection method to a power meter.

[0028] In the communication network example in the system configuration of the RS panel method shown in FIG. 1(a), an electronic power meter (WH) 1A is connected to a central monitoring device 5A via an RS485 input terminal 6. The electronic power meter 1A is an instrument that communicates one-to-one using a current loop communication method, so it is connected to an RS485 communication adapter 7 provided in the central monitoring device 5A via an RS485 input terminal 6 that can communicate one-to-32. The RS485 input terminal 6 performs RS485 communication with the central monitoring device 5A at a communication speed of 9,600 bps or 4,800 bps using the Modbus protocol in RTU mode. Within the range of the specifications of the central monitoring device 5A, a maximum of eight electronic power meters 1A are connected to each RS485 input terminal 6, and a maximum of 127 RS485 input terminals 6 are connected to each central monitoring device 5A.

[0029] In the communication network example in the system configuration of the watt-hour meter direct connection method shown in Fig. 1(b), an electronic watt-hour meter (WH) 1B is directly connected to an RS485 communication adapter 7 provided in a central monitoring device 5B. The electronic watt-hour meter 1B is an instrument equipped with a function for performing RS485 communication, and performs RS485 communication with the central monitoring device 5B at a communication speed of 19,200 bps, 9,600 bps, or 4,800 bps using the Modbus protocol in RTU mode. Up to 127 electronic watt-hour meters 1B are connected to the central monitoring device 5B per system within the range of its specifications.

[0030] In the initial setting files of the higher-level devices 5 such as the central monitoring devices 5A and 5B, setting information to be stored in the electronic watt-hour meters 1 such as the electronic watt-hour meters 1A and 1B is registered and stored in advance.

[0031] FIG. 3 is a flowchart showing a method for importing setting information stored in the electronic watt-hour meter 1 into the higher-level device 5 according to one embodiment of the present invention.

[0032] The setting information of the electronic electricity meter 1 stored in the internal memory of the electronic electricity meter 1 is first read out from the infrared communication port, which is the external communication port of the electronic electricity meter 1, by the sensor 4 via Bluetooth communication directly to the PC3, which is an information processing device, in a setting information reading step 101.

[0033] Next, the setting information read by PC 3 is converted in PC 3 into a data format used for the initial setting file of higher-level device 5 in data format conversion step 102 .

[0034] Next, in a setting information acquisition step 103, the setting information whose data format has been converted is directly imported from the PC 3 to the higher-level device 5 by wireless communication such as Wi-Fi (registered trademark) or wired communication using an optical fiber cable or the like. Alternatively, the setting information is directly imported from the PC 3 to the higher-level device 5 via a storage medium that stores the setting information, such as a USB memory 8 (see FIG. 1).

[0035] Next, the setting information taken into the higher-level device 5 is expanded by the higher-level device 5 into an initial setting file of the higher-level device 5 in a setting information expanding step 104 .

[0036] According to the method of importing the setting information stored in the electronic watt-hour meter 1 into the higher-level device 5 according to this embodiment, the setting information of the electronic watt-hour meter 1 stored in the internal memory of the electronic watt-hour meter 1 is directly read out to the PC 3 by communication from the infrared communication port of the electronic watt-hour meter 1 in the setting information reading step 101 as described above. The read setting information of the electronic watt-hour meter 1 is converted in the PC 3 into a data format used in the initial setting file of the higher-level device 5 in a data format conversion step 102. Then, in a setting information acquisition step 103, the setting information whose data format has been converted is imported into the higher-level device 5 directly from the PC 3 by communication or via the USB memory 8 that stores the setting information. The setting information imported into the higher-level device 5 is expanded in the higher-level device 5 into the initial setting file of the higher-level device 5 in the setting information expansion step 104.

[0037] That is, the correct setting information of the electronic watt-hour meter 1 stored in the internal memory of the electronic watt-hour meter 1 is read directly to the PC 3 by communication from the infrared communication port of the electronic watt-hour meter 1, and then directly imported into the higher-level device 5 from the PC 3 by communication or via the USB memory 8 that stores the setting information. Therefore, the setting information stored in the electronic watt-hour meter 1 is transmitted between devices as is, without being manually manipulated, until it is imported into the higher-level device 5. Therefore, the setting information stored in the electronic watt-hour meter 1 is accurately imported from the electronic watt-hour meter 1 to the higher-level device 5, without the content being changed due to human error while being transmitted between devices.

[0038] As a result, it is possible to provide a method for importing the setting information stored in the electronic watt-hour meter 1 into the higher-level device 5, which can read out the setting information stored in the electronic watt-hour meter 1 and accurately import the read-out setting information into the higher-level device 5 of the electronic watt-hour meter 1. This makes it possible to prevent situations in which erroneous measurement is caused by converting the measurement value of the electronic watt-hour meter 1 based on the multiplying factor or transformation ratio constant in erroneous setting information, or erroneous billing is caused by sending the billing destination to the wrong address based on the meter ID in erroneous setting information.

[0039] In the present embodiment, the setting information includes at least a multiplying factor, a transformation ratio constant, and a meter ID of the electronic watt-hour meter 1, which are used to convert the measurement value of the electronic watt-hour meter 1. Therefore, the multiplying factor, the transformation ratio constant, and the meter ID of the electronic watt-hour meter 1 are read from the electronic watt-hour meter 1 and accurately input into the higher-level device 5.

[0040] In the above embodiment, the higher-level device 5 may be configured to check whether there is an error in the setting information imported into the higher-level device 5 in the setting information deployment step 104. This configuration makes it possible to detect errors such as an instrument ID or terminal address that should not exist in the same system being included in the setting information imported into the higher-level device 5. As a result, the setting information stored in the electronic watt-hour meter 1 is imported from the electronic watt-hour meter 1 to the higher-level device 5 more accurately.

[0041] Furthermore, in the above embodiment, additional setting information to be added to the setting information in data format conversion step 102 may be added to the setting information, and the additional setting information may be directly imported from the PC 3 to the higher-level device 5 together with the setting information in setting information acquisition step 103. According to this configuration, additional setting information to be added to the higher-level device 5 may be directly imported from the PC 3 to the higher-level device 5 together with the setting information. This allows for a greater variety of information to be imported into the higher-level device 5.

[0042] In addition, in the above embodiment, the present invention has been described as being applied to a three-phase, three-wire electronic watt-hour meter 1, but it can also be similarly applied to a three-phase, four-wire electronic watt-hour meter, or between a single-phase, three-wire or single-phase, two-wire electronic watt-hour meter and a higher-level device 5. [Explanation of symbols]

[0043] 1,1A,1B…Electronic electricity meter 1a...Display section 1b…Terminal section 2. Load 3. Personal computer (PC) 4. Sensor 5...Host device 5A,5B…Central monitoring device (upper device) 8...USB memory (storage medium)

Claims

1. A setting information reading step of reading setting information of the electronic watt-hour meter stored in an internal memory of the electronic watt-hour meter directly to an information processing device through communication from an external communication port of the electronic watt-hour meter; a data format conversion step of converting the setting information read into the information processing device into a data format used in an initial setting file of a host device of an electronic watt-hour meter in a communication network, in the information processing device; a setting information acquisition step of acquiring the setting information whose data format has been converted from the information processing device directly into the host device through communication or via a storage medium that stores the setting information; a setting information expanding step of expanding the setting information taken into the host device into an initial setting file of the host device in the host device; A method for importing setting information stored in an electronic watt-hour meter into a higher-level device, comprising:

2. A method for importing setting information stored in an electronic electricity meter into a higher-level device, as described in claim 1, characterized in that, in the setting information expansion step, the higher-level device checks whether there are any errors in the setting information imported into the higher-level device.

3. In the data format conversion step, additional setting information to be additionally set in the upper device is added to the setting information; In the setting information acquisition step, the additional setting information is directly imported into the host device together with the setting information from the information processing device.

2. The method for importing setting information stored in an electronic watt-hour meter into a higher-level device according to claim 1.

4. The method for importing setting information stored in an electronic watt-hour meter into a higher-level device, as described in any one of claims 1 to 3, characterized in that the setting information includes at least a multiplying factor, a transformation ratio constant, and meter identification information of the electronic watt-hour meter used to convert the measurement value of the electronic watt-hour meter.

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