WO2016076072A1 - 測定装置およびその制御方法、管理装置およびその制御方法、並びに測定システム - Google Patents

測定装置およびその制御方法、管理装置およびその制御方法、並びに測定システム Download PDF

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Publication number
WO2016076072A1
WO2016076072A1 PCT/JP2015/079341 JP2015079341W WO2016076072A1 WO 2016076072 A1 WO2016076072 A1 WO 2016076072A1 JP 2015079341 W JP2015079341 W JP 2015079341W WO 2016076072 A1 WO2016076072 A1 WO 2016076072A1
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WIPO (PCT)
Prior art keywords
measurement
sensor
identification information
unit
sensor identification
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PCT/JP2015/079341
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English (en)
French (fr)
Japanese (ja)
Inventor
村田　卓也
井浦　慎一郎
悟郎 川上
旭広 掛谷
岡田　直樹
慎次 内藤
Original Assignee
オムロン株式会社
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Application filed by オムロン株式会社 filed Critical オムロン株式会社
Priority to CN201580055135.0A priority Critical patent/CN106796752B/zh
Publication of WO2016076072A1 publication Critical patent/WO2016076072A1/ja

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Definitions

  • the present invention relates to a measuring device used in a measurement system in which a plurality of measuring devices and a management device that manages the plurality of measuring devices are connected in a communicable manner, a control method thereof, a management device, a control method thereof, and a measurement About the system.
  • a measuring apparatus that measures a certain physical quantity based on a detection signal from a certain sensor is known.
  • a plurality of current values detected by a plurality of current detection means, a plurality of voltage values detected by a plurality of voltage detection means, and the like are output.
  • the main device is connected to a single-phase two-wire circuit, detects the voltage of the circuit, and outputs a voltage signal.
  • Two current signals are output by detecting the currents of the two loads.
  • the individual measuring device calculates two powers based on the voltage signal and the two current signals, and transmits the calculated power values to the main device separately.
  • a measurement system in which a plurality of measurement devices and a management device that manages the measurement devices are connected to be communicable.
  • a plurality of power meters that respectively measure the power consumption of a plurality of press machines are connected to a server via a communication line. Thereby, the server can collect the measured power consumption for each power meter.
  • the management device gives an instruction to one of the measurement devices using a device ID (identification information) for identifying a plurality of measurement devices.
  • a device ID identification information
  • the server uses the device ID that identifies the plurality of power meters to calculate the power consumption of the press machine measured by the power meter for each power meter, that is, for each press machine. To collect.
  • Patent Documents 1 and 2 when one measurement device measures a plurality of measurement values from a plurality of sensors, the management device uses the device ID to obtain a plurality of measurement values from the measurement device. Therefore, it is necessary to specify which sensor the collected measurement value is from.
  • the device ID of the measuring device and the channel number, port number, etc. for identifying the input path from the plurality of sensors to the measuring device.
  • the management device is provided for each measurement device. It is necessary to change the process, and the burden of the process increases.
  • the present invention has been made in view of the above-described problems, and an object of the present invention is to perform processing for transmitting a measurement value from a measurement device to a management device in accordance with an instruction from the management device, the number of sensors connected to the measurement device. It is to provide a measuring device or the like that does not need to be changed according to the conditions.
  • a measuring apparatus is connected to one or a plurality of sensors for detecting a physical quantity to be measured, a plurality of measuring apparatuses that measure the physical quantity based on a detection signal from the sensor, and the plurality of measurements
  • a measurement device used in a measurement system that is communicably connected to a management device that manages the device, and in order to solve the above-described problem, all the sensors connected to the plurality of measurement devices are identified.
  • a reception unit that receives sensor identification information from the management device, and a transmission unit that transmits a measured value of the physical quantity measured through the sensor specified by the sensor identification information received by the reception unit to the management device It is characterized by providing these.
  • control method of the measuring apparatus includes a plurality of measuring apparatuses connected to one or a plurality of sensors for detecting a physical quantity to be measured and measuring the physical quantity based on a detection signal from the sensor.
  • a control method of a measurement device used in a measurement system that is communicably connected to a management device that manages the plurality of measurement devices, and is connected to the plurality of measurement devices in order to solve the above problem.
  • the management device is connected to one or a plurality of sensors for detecting a physical quantity to be measured, and is communicably connected to a plurality of measuring apparatuses that measure the physical quantity based on a detection signal from the sensor.
  • a management device that manages the plurality of measurement devices, and a storage device that stores sensor identification information for identifying all the sensors connected to the plurality of measurement devices,
  • a transmitter that acquires the sensor identification information from a storage device and transmits the sensor identification information to the plurality of measurement apparatuses, and a measurement value via the sensor specified by the sensor identification information, the measurement to which the sensor is connected
  • a receiving unit for receiving from the apparatus.
  • control method of the management device includes a plurality of measuring devices connected to one or more sensors for detecting a physical quantity to be measured and measuring the physical quantity based on a detection signal from the sensor.
  • a control method of a management device that is communicably connected and manages the plurality of measurement devices, and for identifying the sensor identification information for identifying all the sensors connected to the plurality of measurement devices in order to solve the above-mentioned problem
  • the sensor connects the transmission step of acquiring the sensor identification information from the storage device storing the information and transmitting the sensor identification information to the plurality of measurement apparatuses, and the measurement value via the sensor specified by the sensor identification information. Receiving from the measuring device.
  • the measuring device and the management device according to the present invention are all connected to the plurality of measurement devices managed by the management device when the measurement value is transmitted from the measurement device to the management device according to an instruction from the management device. Since the sensor identification information for identifying the sensor is used, there is no need to change the transmission process according to the number of sensors connected to the measurement apparatus. As a result, the process of the measurement apparatus and the management apparatus There is an effect that the burden can be reduced.
  • FIGS. 2 and 3 are block diagrams showing a schematic configuration of the measurement system according to the present embodiment.
  • the measurement device measures the amount of power flowing through each of the plurality of power lines, and the management device manages the measurement device.
  • the amount of power corresponds to energy consumption in a load connected to the power line. Therefore, the measurement system can grasp the energy consumption consumed via the power line for each of the plurality of power lines.
  • the measurement system 10 includes a plurality of detection circuits 11, a plurality of measurement devices 12, a communication line 13, and a management device 14.
  • the detection circuit 11 is attached to the power line PL to be measured, and includes a sensor 20 for detecting a current flowing through the power line PL, and a signal line 21 for transmitting a detection signal from the sensor 20 to the measurement device 12. It is the composition provided. In addition, since the sensor 20 and the signal line 21 are well-known techniques, the description is abbreviate
  • the measuring device 12 is connected to the detection circuit 11 and measures the amount of electricity based on a detection signal from the detection circuit 11. Specifically, the measuring device 12 measures the instantaneous value of the current based on the detection signal, calculates the effective value of the current from the time-series data of the instantaneous value, and calculates the calculated effective value and the power line PL. The power value is calculated by multiplying the predetermined voltage value.
  • the detection circuit 11 connected to the measuring device 12 may be one or plural.
  • the measuring device 12 shown in FIG. 3A is a single circuit power amount monitor 12a that measures and monitors the amount of power flowing through the power line PL based on a detection signal from the detection circuit 11 provided in one power line PL. is there.
  • the measuring device 12 shown in FIG. 3B is detected from a plurality of detection circuits 11 provided on a plurality of power lines (branch lines) PL branched from the main line ML and inserted with the breaker BR.
  • the measurement device 12 of the present embodiment may measure the amount of power in one power line PL based on the detection signal from one detection circuit 11, or the detection signal from a plurality of detection circuits 11. Based on the above, a plurality of power amounts in the plurality of power lines PL may be respectively measured.
  • the management device 14 is connected to a plurality of measurement devices 12 via a communication line 13 so as to be able to communicate with each other, and manages the plurality of measurement devices 12. Specifically, the management device 14 collects the electric energy measured by the plurality of measurement devices 12 and changes or confirms various settings for the plurality of measurement devices 12.
  • Communication between the measurement device 12 and the management device 14 may be performed via a communication I / F (interface) such as RS-485, or via a network I / F such as Ethernet (registered trademark). You may go. Thus, the communication can be performed using a known communication technique. Further, the measurement device 12 and the management device 14 may communicate wirelessly without using the communication line 13.
  • the management device 14 uses sensor IDs (sensor identification information) for identifying the sensors 20 of the detection circuit 11 connected to the plurality of measurement devices 12 instead of the device IDs for identifying the plurality of measurement devices 12.
  • the plurality of measuring devices 12 are managed by using them. Thereby, it is not necessary to change the process for the management according to the number of the sensors 20 of the detection circuit 11 connected to the measuring device 12, and as a result, the burden on the management device 14 can be reduced.
  • FIG. 1 is a block diagram showing a schematic configuration of the measuring device 12.
  • n is a natural number
  • the measuring device 12 includes a control unit 30, a storage unit (storage device) 31, n measurement circuits 32, an operation unit 33, a display unit 34, and a communication unit 35.
  • the control unit 30 controls the operation of various components in the measuring apparatus 12 in an integrated manner, and is configured by a computer including a CPU (Central Processing Unit) and a memory, for example. And operation control of various composition is performed by making a computer run a control program.
  • the storage unit 31 records information and includes a recording device such as a hard disk or a flash memory. Details of the control unit 30 and the storage unit 31 will be described later.
  • the n measurement circuits 32 are respectively connected to the n detection circuits 11, and each measurement circuit 32 has a current detected by the sensor 20 of the detection circuit 11 based on the detection signal from the connected detection circuit 11. Instantaneous values are measured one after another.
  • the measurement circuit 32 transmits measurement data that is time-series data of the instantaneous value of the current to the control unit 30.
  • the measurement circuit 32 includes an A / D converter, an amplifier circuit, and the like.
  • the operation unit 33 receives various inputs from the user by the user's operation, and includes an input button, a touch panel, and other operation devices.
  • the operation unit 33 converts information operated by the user into operation data and transmits the operation data to the control unit 30.
  • the display unit 34 displays display data from the control unit 30.
  • the display unit 34 includes a display element such as a segment display element or a bitmap display element.
  • the communication unit 35 is for data communication with the external management device 14.
  • the communication unit 35 converts various data received from the control unit 30 into a format suitable for data communication, and then transmits the data to the management device 14. Further, the communication unit 35 converts various data received from the management device 14 into a data format inside the device, and then transmits the data to the control unit 30.
  • the control unit 30 includes an ID setting unit (setting unit) 40, a measurement control unit 41, a measurement unit 42, an instruction acquisition unit (reception unit) 43, a setting change unit 44, and a response creation unit (transmission). Part) 45.
  • the storage unit 31 includes a set ID storage unit 50 and n measurement storage units 51.
  • the ID setting unit 40 sets a sensor ID for identifying the sensor 20 of the detection circuit 11 connected to the own device 12.
  • the ID setting unit 40 may set the sensor ID according to an instruction from the user via the operation unit 33, or may automatically set the sensor ID according to a predetermined rule.
  • the ID setting unit 40 stores the set sensor ID (hereinafter referred to as “set ID”) in the set ID storage unit 50.
  • the ID setting unit 40 associates the set ID set for the sensor 20 of the detection circuit 11 with information (for example, measurement target, measurement item, etc.) regarding the sensor 20 of the detection circuit 11 and stores the set ID. You may memorize
  • the measurement control unit 41 controls n measurement circuits 32. Specifically, the measurement control unit 41 changes the setting of the measurement circuit 32 based on an instruction from the setting change unit 44, acquires measurement data from the measurement circuit 32 based on a predetermined condition, and measures the measurement unit 42. Or send it to.
  • the measurement unit 42 measures the amount of power in the power line PL provided with the sensor 20 of the detection circuit 11 based on the measurement data from the measurement circuit 32 via the measurement control unit 41.
  • the measurement unit 42 stores measurement data including the measurement value of the electric energy for each unit time in the storage unit 31. Note that the measurement unit 42 may store measurement data from the measurement circuit 32 in the storage unit 31 as additional measurement data.
  • the instruction acquisition unit 43 acquires instruction data from the management device 14 via the communication line 13 and the communication unit 35.
  • the instruction acquisition unit 43 instructs each unit of the control unit 30 based on the acquired instruction data. Specifically, the instruction acquisition unit 43 sends the instruction data to the setting change unit 44 when the instruction content included in the acquired instruction data is to change various settings in the own device 12. On the other hand, the instruction acquisition unit 43 sends the instruction data to the response creation unit 45 when the content of the instruction requests various data in the own device.
  • the setting change unit 44 changes the setting of each unit in the control unit 30 based on the instruction data from the instruction acquisition unit 43. Specifically, the setting change unit 44 instructs the measurement control unit 41 to change various settings in the measurement circuit 32 based on the instruction data, and changes various setting information in the storage unit 31. .
  • the response creation unit 45 reads various data such as measurement data and setting information from the storage unit 31 based on the instruction data from the instruction acquisition unit 43, and creates response data including the read data.
  • the response creation unit 45 transmits the created response data to the management device 14 via the communication unit 35 and the communication line 13.
  • FIG. 4 is a diagram illustrating a memory map of the measurement storage unit 51 in the storage unit 31 of the present embodiment.
  • FIG. 15 is a reference example and is a diagram showing a memory map of a storage unit in a conventional measuring apparatus.
  • the storage unit 31 includes a measurement storage unit 51 for each sensor 20 of the detection circuit 11 connected to the own device 12.
  • the measurement data output via the detection circuit 11, the measurement circuit 32, and the measurement unit 42 is stored in the measurement storage unit 51 corresponding to the sensor 20.
  • the first measurement data output via the first detection circuit 11a, the first measurement circuit 32a, and the measurement unit 42 is stored in the first measurement storage unit 51a.
  • the second measurement data output via the second detection circuit 11b, the second measurement circuit 32b, and the measurement unit 42 is stored in the second measurement storage unit 51b.
  • each measurement storage unit 51 can store measurement data from a common address. Therefore, when reading the measurement data through a certain sensor 20, the control unit 30 only has to specify the common address of the measurement storage unit 51 corresponding to the sensor 20, and the processing becomes easy.
  • common data common to the plurality of measurement storage units 51 is stored in the end area of each measurement storage unit 51 shown in FIG.
  • Examples of the common data include a communication speed, an automatic turn-off time of an LCD (Liquid Crystal Display) backlight in the display unit 34, and the like.
  • the measurement data is stored in the storage unit 1031 from different addresses for each detection circuit.
  • the first measurement data by the first detection circuit is stored from the address 0000
  • the second measurement data by the second detection circuit is stored from the address 1000.
  • the conventional measuring apparatus for this reason, when reading the measurement data from a certain detection circuit, specifies the address of the storage unit corresponding to the detection circuit and designates the specified address. There is a need to.
  • the measurement device 12 of the present embodiment can easily read the measurement data for each sensor 20 from the storage unit 31 as compared with the conventional measurement device.
  • the measurement storage unit 51 desirably stores the sensor ID of the corresponding sensor 20 at a predetermined address.
  • FIG. 5 is a block diagram illustrating a schematic configuration of the management apparatus 14.
  • the management apparatus 14 includes a control unit 60, a storage unit (storage device) 61, an operation unit 63, a display unit 64, and a communication unit 65.
  • the functions of the control unit 60, the storage unit 61, the operation unit 63, the display unit 64, and the communication unit 65 of the management device 14 are respectively the control unit 30, the storage unit 31, and the operation unit of the measurement apparatus 12 illustrated in FIG. 33, the display unit 34, and the communication unit 35 are similar in function, and thus the description thereof is omitted.
  • the control unit 60 includes an instruction creation unit (transmission unit) 70 and a response acquisition unit (reception unit) 71.
  • the storage unit 61 includes a set ID storage unit 80 and a measurement DB (database) 81.
  • the set ID storage unit 80 Compared with the set ID storage unit 50 shown in FIGS. 1 and 4, the set ID storage unit 80 has set IDs of the sensors 20 of all the detection circuits 11 connected to the measurement device 12 managed by the management device 14. Is different, and the other configurations are the same.
  • the measurement DB 81 stores measurement data collected from a plurality of measurement devices 12.
  • the instruction creating unit 70 creates instruction data for giving various instructions to the measuring device 12.
  • the instruction creating unit 70 transmits the created instruction data to the plurality of measuring devices 12 via the communication unit 65 and the communication line 13.
  • the instruction data may be generated by an instruction from the user via the operation unit 63, or may be automatically generated based on a predetermined condition such as a predetermined period.
  • the instruction creation unit 70 performs various settings for the measurement circuit 32, the measurement control unit 41, and the measurement storage unit 51 related to the sensor 20 of a certain detection circuit 11 in a certain measurement device 12.
  • the set ID of the sensor 20 of the detection circuit 11 is read from the set ID storage unit 80, and the instruction data is read out. Add it. Therefore, since the instruction data does not depend on the number of sensors 20 connected to the measuring device 12, the instruction data can be easily created.
  • the instruction data when requesting the measurement data stored in the measurement storage unit 51 corresponding to the sensor 20 of a certain detection circuit 11, the instruction data includes the sensor ID of the sensor 20 of the detection circuit 11 and the common address. It is not necessary to specify and include an address corresponding to the sensor 20 of the detection circuit 11. Therefore, the creation of the instruction data is further facilitated.
  • the response acquisition unit 71 acquires response data for the instruction data from the measurement device 12 via the communication line 13 and the communication unit 65. Specifically, the response data is measurement data corresponding to a set ID included in the instruction data. The response acquisition unit 71 stores the acquired measurement data in the measurement DB 81 in association with the set ID.
  • control unit 60 can read out various measurement values from the measurement DB 81 and display them on the display unit 64 based on an instruction from the user via the operation unit 63.
  • the transition of the amount of power in the power line PL desired by the user can be displayed, or the integrated power amount in each power line PL can be compared and displayed, so that the user can grasp the amount of power used in each power line PL.
  • the ID setting unit 40 sets the sensor ID of the sensor 20 of the connected detection circuit 11 and stores the set set ID in the set ID storage unit 50.
  • FIG. 6 is a flowchart showing the flow of the collection process of the set ID.
  • the instruction creating unit 70 creates instruction data including a certain sensor ID, and transmits the instruction data on the communication line 13 (S10).
  • the response acquisition unit 71 receives response data corresponding to the instruction data from the communication line 13 (YES in S11)
  • the response acquisition unit 71 determines that the sensor ID is a set ID and sets New registration or update is performed in the ID storage unit 80 (S12).
  • Steps S10 to S12 are repeated for the sensor IDs that can be set, and the collection process is terminated.
  • each measuring device 12 Next, measurement is started in each measuring device 12, and the measurement data detected by the sensor 20 of each detection circuit 11 and output via the measurement circuit 32, the measurement control unit 41, and the measurement unit 42 is detected.
  • the data is stored in the measurement storage unit 51 corresponding to the sensor 20 of the circuit 11.
  • the following processing is performed in each measuring device 12 when instruction data is received from the management device 14.
  • FIG. 7 shows the flow of the processing. As shown in the figure, first, the instruction acquisition unit 43 determines whether or not the instruction data received from the management device 14 is a simultaneous broadcast (S20).
  • S20 simultaneous broadcast
  • the setting changing unit 44 determines whether or not the instruction data is an instruction for a general item unrelated to measurement (S21).
  • An example of an instruction for this general item is turning on / off the LCD backlight in the display unit 34.
  • setting changing unit 44 executes the instruction based on the instruction data only once (S22).
  • the case where the instruction data is not an instruction for the general item is a case where the instruction data is an instruction for a specific item related to measurement.
  • the instruction data is an instruction for a specific item related to measurement.
  • clearing of the accumulated electric energy stored in each measurement storage unit 51 can be cited.
  • the setting changing unit 44 individually gives instructions based on the instruction data to the plurality of measurement circuits 32 and / or the plurality of measurement storage units 51 provided for the sensors 20 of the plurality of detection circuits 11. It will be executed (S23). Thereafter, the process ends.
  • the response creating unit 45 When the instruction data is not a simultaneous broadcast, that is, a request related to the sensor 20 of the detection circuit 11 identified by the sensor ID included in the instruction data (NO in S20), the response creating unit 45 The sensor 20 of the detection circuit 11 is specified (S24), and a request based on the instruction data is executed to the measurement circuit 32 and / or the measurement storage unit 51 related to the sensor 20 of the specified detection circuit 11 (S25). Then, the response creation unit 45 creates response data for the request and transmits it to the management device 14 (S26). Thereafter, the process ends.
  • the measuring apparatus 12 may be switchable between a memory map of the storage unit 31 shown in FIG. 4 and a memory map of the conventional storage unit shown in FIG. In this case, the measurement apparatus 12 of this embodiment can be used in the existing measurement system 10.
  • FIG. 8 is a diagram showing a memory map of the measurement storage unit 51 in the storage unit 31 which is a modification of the present embodiment.
  • the first to nth measurement data in the first to nth measurement storage units 51 can be collected in the first measurement storage unit 51a.
  • the illustrated memory map can be realized by sequentially transferring the second to n-th measurement data in the second to n-th measurement storage unit 51 to the first measurement storage unit 51a in the memory map shown in FIG.
  • This modification is suitable for a case where it is desired to reduce the number of set IDs in the own apparatus 12 and for the management apparatus 14 to collect all measurement data in the own apparatus 12 with one set ID.
  • the memory map shown in FIG. 8 if the second to nth measurement data in the first measurement storage unit 51a are cleared, the original memory map shown in FIG. 4 can be restored. Accordingly, the storage unit 31 having the memory map shown in FIG. 4 and the storage unit 31 having the memory map shown in FIG. 8 can be switched.
  • the first to n-th measurement data may be stored in the measurement storage unit 51 other than the first measurement storage unit 51 as in the first measurement storage unit 51. Good. In this case, all the measurement data in the own device 12 can be transmitted to the management device 14 regardless of which of the set IDs corresponding to the first to nth measurement storage units 51 is selected.
  • the measurement circuit 32 is provided separately from the control unit 30, but may be provided in the control unit 30.
  • one measurement circuit 32 and n detection signals from n detection circuits 11 are selected, and the selected detection signal is transmitted to the measurement circuit 32.
  • a circuit may be provided.
  • the display unit 34 may display measurement data corresponding to the sensor ID together with the sensor ID. In this case, the confirmation operation by the user becomes easy.
  • the operation unit 33 may further include a changeover switch for switching the display of the measurement data and sensor ID on the display unit 34 for each sensor ID.
  • a changeover switch for switching the display of the measurement data and sensor ID on the display unit 34 for each sensor ID.
  • the measurement data corresponding to the sensor ID that the user desires to display can be easily switched, and the confirmation operation by the user is facilitated.
  • the display unit 34 may display the measurement data corresponding to the sensor ID in a color associated with the sensor ID.
  • the display unit 34 may further include a light emitting element corresponding to the sensor ID.
  • An example of the light emitting element is an LED (Light Emitting Diode). In these cases, it is possible to easily specify to which sensor ID the displayed measurement data corresponds.
  • the measurement system 10 of the present embodiment differs from the measurement system 10 shown in FIGS. 1 to 8 in the configuration and operation of the measurement device 12, and the other configurations are the same.
  • FIG. 9 shows a schematic configuration of the measuring apparatus 12 in the present embodiment.
  • the measurement apparatus 12 of the present embodiment is provided with an ID setting section 40a and a set ID storage section 50a instead of the ID setting section 40 and the set ID storage section 50.
  • the other configurations are the same.
  • the sensor ID is constituted by a global part that can identify the measuring device 12 and a local part that can identify the sensors 20 of the plurality of detection circuits 11 connected to the measuring device 12. Good.
  • the data length of the sensor ID becomes longer, and the burden of resources on the measuring device 12 and the management device 14 increases.
  • the burden of the communication resource increases.
  • the set ID storage unit 50a is the same as the set ID storage unit 80 in the management device 14 illustrated in FIG. 5, and all the detection circuits connected to the measurement device 12 managed by the management device 14. 11 set IDs of 11 sensors 20 are stored. This is because the management device 14 creates instruction data for instructing to store the set of set IDs stored in the set ID storage unit 80 in the set ID storage unit 50a of the measurement device 12. It can be realized by reporting.
  • the sensor ID may be limited to the maximum value (for example, 99) of the sensor 20 of the detection circuit 11 that can be connected to the measuring device 12 that can be connected to the management device 14, depending on the global part and the local part.
  • the data length can be shortened compared to the configured sensor ID.
  • the ID setting unit 40a of the present embodiment refers to the set of set IDs stored in the set ID storage unit 50a when setting the sensor ID, as compared with the ID setting unit 40 shown in FIG.
  • a configuration for warning is added, and the other configurations are the same. Thereby, it can prevent that a user tries to set sensor ID set in the other measuring apparatus 12 in the own apparatus 12.
  • FIG. 10 is a flowchart showing a process flow when the user sets the sensor ID in the ID setting unit 40a.
  • the control unit 30 sets an upper limit value of the number of sensor IDs (set number) set in the device 12 in advance according to the set conditions. For example, by setting the number of sensors 20 of the detection circuit 11 connected to the own device 12, the number is set as the upper limit value. As a result, the number of sensor IDs occupied by the device 12 can be minimized.
  • the ID setting unit 40 a sends the sensor 20 and sensor ID information of the detection circuit 11 that the user desires to set via the operation unit 33. (S30).
  • the acquired sensor ID is collated with the set of set IDs stored in the set ID storage unit 50a (S31).
  • step S32 it is determined whether there is a set ID that matches the acquired sensor ID (S32). If it exists (YES in S32), a warning indicating that the sensor ID overlaps with the set ID is displayed on the display unit 34 (S33). Then, it returns to step S30 and repeats the said process.
  • the acquired sensor ID is stored in the set ID storage unit 50a as the sensor ID of the detection circuit 11 (S34). Thereafter, the process ends.
  • FIGS. 11 and 12 The measurement system 10 of the present embodiment differs from the measurement system 10 shown in FIGS. 1 to 8 in the configuration and operation of the management apparatus 14, and the other configurations are the same.
  • the management device 14 periodically acquires measurement data corresponding to each set ID. For example, if it is integrated electric energy, it will acquire every day. Accordingly, if the number of measurement data acquired corresponding to a certain set ID is significantly different from the number of measurement data acquired corresponding to another set ID, some abnormality has occurred in the measurement corresponding to the set ID. It is thought that there is.
  • the management device 14 stores the number of acquisitions of measurement data for each set ID, and makes a setting error or the like for measurement corresponding to a set ID whose acquisition number is significantly different from other set IDs. A warning indicating that there is a possibility that some abnormality has occurred is sent to the measurement device 12. Thereby, the measurement apparatus 12 can be notified of the measurement abnormality.
  • FIG. 11 shows a schematic configuration of the management apparatus 14 in the present embodiment.
  • the management apparatus 14 of the present embodiment is provided with an instruction creation unit 70 a and a response acquisition unit 71 a in the control unit 60 instead of the instruction creation unit 70 and the response acquisition unit 71.
  • the point that the response number acquisition unit 72 and the abnormality determination unit 73 are newly provided differs from the point that the measurement DB 81a is provided instead of the measurement DB 81 in the storage unit 61.
  • the configuration of is the same.
  • the measurement DB 81a stores the number of responses of response data, that is, the number of acquired measurement data for each set ID in addition to the information of the measurement DB 81 shown in FIG.
  • the response acquisition unit (counting unit) 71 a adds 1 to the above acquisition number of the measurement DB 81 a when storing the acquired measurement data in the measurement DB 81 a.
  • a configuration for updating (counting) is added.
  • the response number acquisition unit 72 acquires the acquisition number for each set ID from the measurement DB 81a and sends it to the abnormality determination unit 73.
  • the abnormality determination unit 73 determines whether the acquired number of each set ID from the response number acquisition unit 72 is within the allowable range, and some abnormality occurs in the measurement corresponding to the set ID that is outside the allowable range. It is determined that The abnormality determination unit 73 sends the set ID that has been determined that the abnormality has occurred to the instruction creation unit 70a.
  • the determination of the allowable range in the abnormality determination unit 73 may be performed as follows, for example. First, the average value of the acquired numbers of each set ID, that is, the acquired number is added to all the set IDs, and a value obtained by dividing the sum by the number of all set IDs is calculated. And what is necessary is just to determine whether the absolute value of the difference of the calculated average value and the said acquisition number for every set ID exceeds a predetermined
  • the instruction creation unit 70 a creates instruction data that instructs to display a warning that the measurement of the set ID from the abnormality determination unit 73 is abnormal.
  • the data is transmitted on the communication line 13 via the communication unit 65.
  • FIG. 12 is a flowchart showing the flow of the above process in the management apparatus 14.
  • the response acquisition unit 71a Before performing the processing, when the response acquisition unit 71a receives the response data from the measurement device 12 via the communication unit 65, the response acquisition unit 71a associates the measurement data included in the response data with the set ID included in the response data. While storing in the measurement DB 81a, the number of acquired set IDs stored in the measurement DB 81a is updated by one.
  • the processing shown in FIG. 12 is performed at a predetermined timing.
  • the response number acquisition unit 72 acquires the acquisition number for each set ID from the measurement DB 81a (S40), and the abnormality determination unit 73 calculates the average value of the acquired acquisition numbers for each set ID. (S41).
  • the abnormality determination unit 73 determines whether there is a set ID in which the absolute value of the difference between the acquired number and the average value is greater than a predetermined allowable value (S42). If it does not exist (NO in S42), it is determined that the measurement for each set ID is normal (S43), and the process is terminated.
  • instruction creating unit 70 instructs to display a warning that the measurement of the set ID is abnormal.
  • Instruction data is created and transmitted (S44). Thereby, the warning display is performed on the measuring device 12 having the sensor 20 corresponding to the set ID, and as a result, the user can grasp the measurement abnormality of the set ID.
  • the response acquisition unit 71a acquires response data corresponding to the instruction data (S45), and ends the process.
  • the measurement system 10 of the present embodiment differs from the measurement system 10 shown in FIGS. 1 to 8 in the configuration and operation of the measurement device 12, and the other configurations are the same.
  • FIG. 13 shows a schematic configuration of the measuring apparatus 12 in the present embodiment.
  • the measurement apparatus 12 according to the present embodiment has a statistical processing section (calculation section) 46 newly provided in the control section 30 and a statistical storage section 52 in the storage section 31. Unlike the newly provided point, the other configurations are the same.
  • the statistical processing unit 46 collects the measurement data stored in each measurement storage unit 51, applies statistical processing to the collected measurement data, and creates statistical data.
  • the statistical processing unit 46 stores the created statistical data in the statistical storage unit 52 of the storage unit 31.
  • FIG. 14 is a diagram illustrating a memory map of the measurement storage unit 51 and the statistics storage unit 52 in the storage unit 31 of the present embodiment.
  • the statistical storage unit 52 stores statistical values such as an average value, a total value, a maximum value, and a minimum value of measurement data stored in each measurement storage unit 51 as statistical data. .
  • the sensor ID is set for the statistical processing unit 46.
  • the setting of the statistical processing unit 46 is changed, the setting is confirmed, the statistical data is read from the statistical storage unit 52, and transmitted to the management device 14. can do.
  • the conventional measurement system there is a relay that collects measurement data from a plurality of measurement devices, applies statistical processing to the collected measurement data, creates statistical data, and transmits the statistical data to the management device.
  • the function of the repeater can be performed by the measurement device 12.
  • an electric energy calculation unit that calculates electric energy from the current measurement data and the voltage measurement data, and calculation of the electric energy calculated by the electric energy calculation unit
  • a calculation storage unit that stores calculation data including values may be provided, and a sensor ID may be set for the power calculation unit.
  • the electric energy is obtained by multiplying the instantaneous value of the current measured through the sensor 20 that detects the current by the instantaneous value of the voltage measured through the sensor that detects the voltage, It can be calculated by integrating. Therefore, the calculated power amount data uses a measured voltage value instead of the predetermined voltage value as compared with the measured power amount data in the measurement system 10 shown in FIGS. Can be measured accurately.
  • the setting of the power amount calculation unit can be changed, the setting can be confirmed, or the calculation data can be read from the calculation storage unit. And can be easily transmitted to the management device 14.
  • the management device 14 easily collects the calculation data calculated by the calculation unit by setting the sensor ID to the calculation unit that calculates various physical quantities from the plurality of measurement data obtained by the sensors 20 of the plurality of detection circuits 11. can do.
  • control blocks (particularly the control unit 30 and the control unit 60) of the measurement device 12 and the management device 14 may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like, It may be realized by software using a Processing Unit.
  • the measurement device 12 and the management device 14 include a CPU that executes instructions of a program that is software that realizes each function, and a ROM (Read that records the program and various data so that the computer (or CPU) can read the program. Only Memory) or a storage device (these are referred to as “recording media”), RAM (Random Access Memory) for expanding the program, and the like. And the objective of this invention is achieved when a computer (or CPU) reads the said program from the said recording medium and runs it.
  • a “non-temporary tangible medium” such as a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used.
  • the program may be supplied to the computer via an arbitrary transmission medium (such as a communication network or a broadcast wave) that can transmit the program.
  • a transmission medium such as a communication network or a broadcast wave
  • the present invention can also be realized in the form of a data signal embedded in a carrier wave in which the program is embodied by electronic transmission.
  • the current in the power line PL is detected and the amount of power is measured.
  • the present invention is applied to any measuring device that detects and measures an arbitrary physical quantity in an arbitrary target. Can be applied.
  • the measurement apparatus is connected to one or a plurality of sensors for detecting a physical quantity to be measured, and a plurality of measurement apparatuses that measure the physical quantity based on detection signals from the sensors.
  • a measuring device used in a measurement system that is communicably connected to a management device that manages the plurality of measuring devices, and in order to solve the above problem, all the devices connected to the plurality of measuring devices
  • a receiving unit that receives sensor identification information for identifying the sensor from the management device, and a measurement value of the physical quantity measured through the sensor specified by the sensor identification information received by the receiving unit.
  • a transmission unit for transmitting to.
  • control method of the measuring apparatus includes a plurality of measuring apparatuses connected to one or a plurality of sensors for detecting a physical quantity to be measured and measuring the physical quantity based on a detection signal from the sensor.
  • a control method of a measurement device used in a measurement system that is communicably connected to a management device that manages the plurality of measurement devices, and is connected to the plurality of measurement devices in order to solve the above problem.
  • Receiving step of receiving sensor identification information for identifying all the sensors from the management device, and measurement of the physical quantity measured through the sensor specified by the sensor identification information received in the receiving step Transmitting a value to the management device.
  • the measured value measured via the sensor is transmitted to the management device.
  • the identification information is not device identification information for identifying a plurality of measurement devices managed by the management device, but sensor identification information for identifying all the sensors connected to the plurality of measurement devices.
  • the measurement device that has received the sensor identification information only needs to transmit the measurement value measured via the sensor specified by the sensor identification information to the management device, and the number of sensors connected to the measurement device. There is no need to change the transmission process according to the above. As a result, it is possible to reduce the processing burden on the measuring device that is the device itself.
  • examples of the physical quantity include current, voltage, power, electric energy, temperature, flow rate, light quantity, pressure, and rotation speed.
  • Examples of management in the management device include collecting the measurement values, making various settings for the measurement via the sensor, and checking the settings.
  • the measurement apparatus preferably further includes a setting unit that sets sensor identification information for each connected sensor.
  • sensor identification information can be set by the measuring device.
  • the setting unit may set an upper limit of the number of sets of the sensor identification information. In this case, the number of sensor identification information occupied by the own device can be minimized.
  • the setting unit may notify the outside when the sensor identification information to be set is the same as the already set sensor identification information. In this case, it is possible to prevent the sensor identification information from being set redundantly.
  • a measurement storage unit that stores a measurement value of a physical quantity measured via the sensor is provided for each sensor. Further, it is preferable that the measurement values are stored from a common address in each measurement storage unit. In this case, in order to acquire a measurement value through a certain sensor, it is only necessary to read from the common address of the measurement storage unit corresponding to the sensor, and the processing becomes easy.
  • the measurement storage unit may store measurement values stored in other measurement storage units. This is suitable when it is desired to reduce the number of pieces of sensor identification information set in the own apparatus, and when it is desired to transmit all measurement data in the own apparatus to the management apparatus with one sensor identification information.
  • the receiving unit receives instruction data including the sensor identification information and instruction content from the management apparatus, and the instruction data is received from the management apparatus by broadcast. Then, it is determined whether or not the instruction content in the instruction data is related to the measurement via the sensor, and when it is related, the instruction based on the instruction content may be performed for each measurement via the sensor.
  • the instruction content is performed for each measurement, it can be performed without omission.
  • examples of instruction contents irrelevant to the measurement via the sensor include display / non-display switching, communication speed setting, and the like. These instruction contents may be inconvenient if they are set differently for each measurement. Therefore, the instruction content need only be performed once, and in this case, the above-described inconvenience can be prevented.
  • the measurement apparatus further includes a calculation unit that calculates a new physical quantity using a plurality of measurement values obtained by the plurality of sensors, and the sensor identification information includes all the sensors, the calculation unit, and the like.
  • the transmission unit may further transmit a calculated value, which is a physical quantity calculated by the calculation unit specified by sensor identification information received by the reception unit, to the management device. In this case, in accordance with a request from the management device, not only the measured value of the physical quantity via one sensor but also the calculated value of the physical quantity via a plurality of sensors can be easily transmitted.
  • the measurement apparatus preferably further includes a display unit that displays the measurement value corresponding to the sensor identification information together with the sensor identification information. In this case, the confirmation operation by the user becomes easy.
  • the measurement apparatus preferably further includes a changeover switch for switching the display of the measurement value and the sensor identification information on the display unit for each sensor identification information.
  • a changeover switch for switching the display of the measurement value and the sensor identification information on the display unit for each sensor identification information.
  • the display unit may display the measurement value corresponding to the sensor identification information in a color associated with the sensor identification information. In this case, it is possible to easily specify which sensor identification information corresponds to the displayed measurement value.
  • the display unit may further include a light emitting element corresponding to the sensor identification information. In this case, it is possible to easily specify which sensor identification information corresponds to the displayed measurement value.
  • the management device is connected to one or a plurality of sensors for detecting a physical quantity to be measured, and is communicably connected to a plurality of measuring apparatuses that measure the physical quantity based on a detection signal from the sensor.
  • a management device that manages the plurality of measurement devices, and a storage device that stores sensor identification information for identifying all the sensors connected to the plurality of measurement devices,
  • a transmitter that acquires the sensor identification information from a storage device and transmits the sensor identification information to the plurality of measurement apparatuses, and a measurement value via the sensor specified by the sensor identification information, the measurement to which the sensor is connected
  • a receiving unit for receiving from the apparatus.
  • control method of the management device includes a plurality of measuring devices connected to one or more sensors for detecting a physical quantity to be measured and measuring the physical quantity based on a detection signal from the sensor.
  • a control method of a management device that is communicably connected and manages the plurality of measurement devices, and for identifying the sensor identification information for identifying all the sensors connected to the plurality of measurement devices in order to solve the above-mentioned problem
  • the sensor connects the transmission step of acquiring the sensor identification information from the storage device storing the information and transmitting the sensor identification information to the plurality of measurement apparatuses, and the measurement value via the sensor specified by the sensor identification information. Receiving from the measuring device.
  • identification information is transmitted to a plurality of measurement devices, and a measurement value corresponding to the identification information is received.
  • the identification information is not device identification information for identifying a plurality of measurement devices managed by the management device, but sensor identification information for identifying all sensors included in the plurality of measurement devices.
  • the management device further includes a counting unit that counts the number of measurement values received by the receiving unit for each sensor identification information, and the measurement value for each sensor identification information counted by the counting unit
  • the transmission unit transmits information indicating that the measurement by the sensor identification information corresponding to the number of measurement values exceeding the allowable range is abnormal. Is preferred. In this case, a measurement abnormality can be notified to the measurement device.
  • the measurement apparatus may be realized by a computer, and in this case, a control program for the measurement apparatus that causes the measurement apparatus to be realized by the computer by operating the computer as each unit included in the measurement apparatus,
  • a computer-readable recording medium on which it is recorded also falls within the scope of the present invention.
  • the management apparatus may be realized by a computer.
  • the management apparatus controls the computer to realize the management apparatus by causing the computer to operate as each unit included in the management apparatus.
  • a program and a computer-readable recording medium on which the program is recorded also fall within the scope of the present invention.
  • the present invention provides circuit identification information for identifying all detection circuits connected to a plurality of measurement devices managed by the management device when a measurement value is transmitted from the measurement device to the management device according to an instruction from the management device. By using, there is no need to change the transmission process according to the number of detection circuits connected to the measurement device, and as a result, the processing burden on the measurement device and the management device can be reduced.
  • the present invention can be applied to an arbitrary measurement system that detects and measures an arbitrary physical quantity from an arbitrary measurement target.

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