JP6876522B2 - Measurement system and program for measurement system - Google Patents

Description

The present invention is a measurement system configured to be able to provide information about the integrated electric energy supplied to a load via a conductive path, and a measurement in which a processing unit of the measurement system executes a process necessary for providing the above information. It is about system programs.

As a measurement system of this type, the applicant discloses an integrated wattmeter in the following patent documents. The integrated power meter disclosed by the applicant includes a current sensor that detects a current flowing through a line to be measured (a conductive path to be measured), a voltage sensor that detects a voltage applied to the line to be measured, and a plurality of integrated power meters. An input unit that is provided with a switchable measurement range and processes the signals output from both sensors, an A / D converter that performs A / D conversion processing on the signal output from the input unit, and an A / D converter. It is configured to include a control means (CPU) for calculating a power amount and the like based on the data output from, an operation means, and a display means.

In the measurement processing using this integrated power meter and the notification processing of the result, the signal output from the current sensor and the voltage sensor and processed by the input unit is input to the A / D converter, so that the input unit is used. The current value data and the voltage value data according to the switching state of the measurement range in the above are output from the A / D converter. At this time, the CPU calculates the instantaneous power (instantaneous power amount) based on both data output from the A / D converter, and each time it calculates a new instantaneous power amount based on the new data. The integrated power (integrated power amount) is obtained by integrating the values (by sequentially adding them to the values in the integrated power memory). Further, the CPU executes a process of calculating and accumulating an instantaneous power error (a process of sequentially adding to a value in the power error memory) in parallel with the above process according to the procedure disclosed in the patent document.

After that, when the operation for ending the above integration is performed, for example, the CPU reads the integrated power amount from the integrated power memory and measures the electric energy from the power error memory (integrated value of error: measurement). The amount of error) is read out, and the read-out integrated power amount and measurement error amount are displayed on the display means or printed by a printer. As described above, the measurement process and the measurement result notification process are completed.

Japanese Unexamined Patent Publication No. 2002-286768 (Page 3-4, Fig. 1-2)

However, the integrated wattmeter disclosed by the applicant has the following problems to be improved. Specifically, in the integrated wattmeter disclosed by the applicant, the instantaneous electric energy is sequentially calculated based on the current value and the voltage value measured for the conductive path to be measured, and the calculation result is calculated over a predetermined time. By integrating, the integrated electric energy supplied within a predetermined time via the conductive path is obtained and displayed or printed together with the measurement error amount.

On the other hand, in the conductive path that is the measurement target of this type of system (device), the amount of power that is continuously measured for the purpose of grasping the amount of power used within a certain period and the operating state of the load. A meter is installed. However, accurate watt-hour meters can be obtained due to theft of electricity by arranging conductive paths that bypass the watt-hour meter or modifying the watt-hour meter to underestimate the watt-hour meter, or due to a failure of the watt-hour meter. Currently, there are accidents that cannot be obtained. For this reason, it may be necessary to confirm the presence or absence of parallel bypass paths and modification / failure / deterioration of the watt-hour meter (hereinafter, these are collectively referred to as "abnormality of the watt-hour meter").

In this case, if the watt-hour meter installed in the conductive path is an induction type watt-hour meter, a measuring disk that can be seen from the outside is arranged, and the rotating state of the measuring disk (specified). By observing the operation of notifying the cycle in which the amount of electric energy is measured: the periodic notification operation), it is possible to grasp the state of power supply via the conductive path. In addition, the inductive watt-hour meter is marked with instrument constants such as "○○○ rev / □□ kWh" (information that the measuring disk rotates ○○○ while measuring □□ kWh). Therefore, it is possible to calculate the measurement value to be measured per one rotation (one cycle notification operation) of the measurement disk based on this instrument constant.

Further, when the watt-hour meter installed in the conductive path is an electronic watt-hour meter, a light emitting unit (measurement pulse notification unit) that blinks (instantaneously emits light) each time the integrated electric energy reaches a specified amount. Is provided, and by observing the blinking state (periodic notification operation) of the measurement pulse notification unit, it is possible to grasp the power supply state via the conductive path. In addition, the electronic watt-hour meter is marked with instrument constants such as "○○○ pulse / □□ kWh" (information that the measurement pulse notification unit blinks ○○○ times while measuring □□ kWh). Based on this instrument constant, it is possible to calculate the measurement value to be measured per one blinking operation (one cycle notification operation) of the measurement pulse notification unit.

Therefore, the measured value measured by the watt-hour meter per one periodic notification operation is calculated in advance based on the instrument constant, and the above integrated watt-hour meter is used to perform one periodic notification operation of the watt-hour meter. By measuring the integrated electric energy per hit and comparing the measurement result with the calculated value, it is possible to confirm the presence or absence of an abnormality in the watt-hour meter.

However, for example, when the owner of the power supply equipment (conductive path or watt hour meter) is different from the worker who checks the parallel arrangement of bypass paths or the presence or absence of an abnormality in the watt hour meter, the confirmation is different from the actual condition of the power supply equipment. Results may be provided by the worker to the owner.

Specifically, for example, the above-mentioned work is performed using the watt-hour meter disclosed by the applicant, and the printed matter of the integrated electric energy and the measurement error amount as the confirmation result is sent to the owner of the power supply equipment. Even if there is an abnormality in the parallel bypass roads or the watt-hour meter, the integration should be measured in a normal state where there is no parallel installation of the bypass roads or the abnormality in the watt-hour meter. By stopping the measurement process when the electric energy is measured, a printed matter having a measurement error amount of "0" is generated with the integrated electric energy to be measured in the normal state. For this reason, the owner who sees the provided printed matter cannot correctly grasp the actual condition of the power supply equipment, and it is preferable to improve this point.

The present invention has been made in view of such a problem, and provides a measurement system and a program for a measurement system that can prevent the measured integrated electric energy from being intentionally adjusted to a value different from the actual value. The main purpose is that.

In order to achieve the above object, the measuring system according to claim 1 measures the voltage value of the voltage applied to the conductive path in which the watt-hour meter is installed and the current value of the current flowing through the conductive path. A unit, a detection unit that detects a timing corresponding to a cycle notified by a cycle notification operation by the watt-hour meter, and a conductive path based on the voltage value and the current value measured by the measurement unit. A first calculation unit that calculates the amount of power supplied to the load, a second calculation unit that calculates the integrated power amount based on the power amount calculated by the first calculation unit, and the second calculation unit. The calculation unit is provided with a processing unit for calculating the integrated electric energy amount, and the detection unit is provided with an operation unit capable of performing a timing specifying operation synchronized with the notified cycle, and the timing specification for the operation unit is provided. The timing corresponding to the notified cycle can be detected based on the operation, and the processing unit performs the integration while the watt-hour meter performs the cycle notification operation N times (N is a natural number). The second calculation unit is made to calculate the electric power amount according to the timing detected by the detection unit, and the integration time of the electric energy amount at the time of calculation of the integrated power amount by the second calculation unit is predetermined. The number of times of the N times is specified so as to satisfy the condition that the time exceeds the specified time.

As described above, the "cycle notification operation" is an operation of notifying the cycle in which a specified amount of electric energy is measured, and in the case of an induction type watt-hour meter, the rotation operation of the measuring disk is performed. Corresponding to this, in the case of an electronic watt-hour meter in which the pulse notification unit blinks once within one cycle (shifts to a lighting state and an extinguishing state), the operation of notifying the cycle by blinking corresponds to this. In the case of an electronic watt-hour meter, the lighting state / extinguishing state is maintained for one cycle (the lighting state is maintained for one cycle and then the extinguishing state is maintained for one cycle). This corresponds to the operation of notifying the cycle by turning off the light and the operation of notifying the cycle by turning off the light.

Measurement system according to claim 2, wherein the another in claim 1 Symbol placement of the measurement system, the first device having at least said measuring portion, and said first device and having at least the detection section and the processing unit It is configured to include a second device configured to be communicable with the first device configured on the body.

The measurement system program according to claim 3 includes a measuring unit that measures a voltage value of a voltage applied to a conductive path in which a watt-hour meter is installed and a current value of a current flowing through the conductive path, and the power supply. It is supplied to the load via the conductive path based on the detection unit that detects the timing corresponding to the cycle notified by the cycle notification operation by the watt-hour meter and the voltage value and the current value measured by the measurement unit. The first calculation unit that calculates the amount of electric current, the second calculation unit that calculates the integrated power amount based on the power amount calculated by the first calculation unit, and the second calculation unit. Bei example a processing unit for calculating the integrated electricity, the detector is provided with the notification operation unit capable of timing specifying operation that is synchronized with the period being, based on the timing specifying operation on the operation unit While the watt-hour meter performs the cycle notification operation N times (N is a natural number) with respect to the processing unit of the measurement system configured to be able to detect the timing corresponding to the notified cycle. The integrated power amount is calculated by the second calculation unit according to the timing detected by the detection unit, and the integration time of the power amount at the time of calculation of the integrated power amount by the second calculation unit is performed in advance. The process for specifying the N times is executed so as to satisfy the condition that the time exceeds the specified time.

In claim 1 of the measuring system, the processing unit, causes the operation of the integrated electricity while electricity meter performs N times the periodic notification operation to the second arithmetic unit, integrated electricity by the second arithmetic unit The number of N times is specified so as to satisfy the condition that the integrated time of the electric energy at the time of the calculation of is equal to or longer than the predetermined time. Further, in the measurement system program according to claim 3, the processing unit of the measurement system is made to execute the above processing. Therefore, according to the measurement system according to claim 1 and the measurement system program according to claim 3 , the operator determines how many times the watt-hour meter performs the periodic notification operation to integrate the electric energy. Since the integrated electric energy is measured (calculated) without being recognized by the user, it is surely avoided that the measured integrated electric energy is intentionally adjusted to a value different from the actual value, and the height is in line with the actual condition. It is possible to provide an accurate integrated electric energy.

In this case, measuring detector of the constant system timing specifying manipulation synchronized with the cycle to be broadcast by the periodic notification operation is an operation unit capable, based on the timing specifying operation to the operation unit, the notification by the periodic reporting operation It is configured so that the timing corresponding to the cycle to be performed can be detected. Therefore, according to claim 1, wherein the measurement system, and according to claim 3, wherein the measurement system program, a period corresponding to the period of the periodic notification operation by the power meter by a relatively simple structure, or a simple process Since it can be detected and the integrated electric energy can be measured (calculated), it is possible to provide a measurement system capable of acquiring a highly accurate integrated electric energy without causing an increase in manufacturing cost.

In the measuring system according to claim 2 , the first device having at least a measuring unit and the first device having at least a detecting unit and a processing unit are configured separately from the first device so as to be able to communicate with the first device. It is configured to include a second device. Therefore, according to the measurement system according to claim 2 and the measurement system program that causes the processing unit of such a measurement system to execute the process of controlling the second calculation unit, the position suitable for measuring the amount of power. By remotely operating the first device from the second device at a position where the watt-hour meter can be reliably viewed or imaged with the first device (measuring unit) arranged in the system, the integrated power amount Can be measured (calculated), so that a highly accurate integrated power amount can be reliably and easily obtained.

It is a block diagram which shows the structure of the measurement system 100. It is a flowchart of the report data generation processing 30 executed by the processing unit 25 of the mobile information terminal 2 in the measurement system 100. It is a flowchart of the control process 40 in the report data generation process 30. It is a flowchart of the control process 50 in the report data generation process 30.

Hereinafter, embodiments of the measurement system and the program for the measurement system according to the present invention will be described with reference to the accompanying drawings.

The measurement system 100 shown in FIG. 1 is an example of a “measurement system”, which includes a wattmeter 1, a mobile information terminal 2, and a data server 3, and measures the amount of power supplied to a load via a conductive path. It is configured to be able to process and provide measurement results (information that can identify whether or not the measured value of the wattmeter installed in the conductive path is accurate). In the following description, as an example, a watt hour meter M is installed on a single-phase two-wire power supply line L (single-phase two-wire conductive path) of the conducting wires La and Lb, and the power meter M is installed via the power supply line L. It is assumed that power is supplied to the load.

Further, as the watt hour meter M installed in this type of power supply line L (conductive path), "a specified amount of electric energy is measured by a rotational operation of a measuring disk (an example of" periodic notification operation "). An inductive watt-hour meter with a configuration that notifies the "cycle" and a configuration that notifies the "cycle in which the specified amount of electric energy is measured" by the blinking operation of the measurement pulse notification unit (another example of the "cycle notification operation"). There is an electronic induction type watt hour meter. Further, some electronic watt-hour meters are of the type in which the pulse notification unit blinks once within one cycle (shifts to the lit state and the extinguished state), and the lit / extinguished state is maintained for one cycle. (The lighting state is maintained for one cycle and then the extinguishing state is maintained for one cycle).

On the other hand, the power meter 1 is an example of a measuring device corresponding to the "first device", and together with the portable information terminal 2, constitutes a "measuring system". The power meter 1 includes a voltage measuring unit 11V, a current measuring unit 11A, a communication unit 12, an operating unit 13, a display unit 14, a processing unit 15, and a storage unit 16, and includes an electric energy (instantaneous electric energy) and an integrated value thereof. It is configured to be able to perform measurements such as (integrated electric energy) and display of measurement results.

The voltage measuring unit 11V, together with the current measuring unit 11A, constitutes a "measuring unit". As an example, the voltage measuring unit 11V is connected to the power supply line L (lead wire La, Lb) via a measuring cable and is connected between the lead wires La and Lb. The applied voltage value is measured, and the voltage value data Dv indicating the measurement result is output. In addition, instead of the "contact type voltage measuring unit" such as the voltage measuring unit 11V, the "non-contact type voltage measurement" that measures the voltage in a non-contact manner (metal non-contact) with respect to the power supply line L (conductors La, Lb). It can also be configured with a "part". The current measuring unit 11A measures the current value of the current flowing through the conducting wire La using a clamp sensor in a state where the conducting wire La is clamped, and outputs current value data Da indicating the measurement result.

As an example, the communication unit 12 is composed of a communication adapter capable of wireless communication conforming to a short-range wireless communication standard such as a Bluetooth (Bluetooth: registered trademark) standard. The communication unit 12 transmits and receives various data to and from various wireless communication devices such as a personal digital assistant 2 under the control of the processing unit 15.

The operation unit 13 holds an operation switch capable of inputting the operating conditions of the power meter 1, an operation switch instructing the start / stop of measurement (calculation of integrated electric energy), and a measured value (integrated electric energy, etc.). An operation switch or the like is provided, and an operation signal corresponding to the switch operation is output to the processing unit 15. The display unit 14 displays various display screens (not shown) such as an operating condition setting screen and a measurement result display screen under the control of the processing unit 15.

The processing unit 15 comprehensively controls the power meter 1 based on the measurement system program Ds1 stored in the storage unit 16 as described later. Specifically, the processing unit 15 controls the voltage measuring unit 11V and the current measuring unit 11A according to the control command Dc transmitted from the mobile information terminal 2 to execute the measurement processing, and also causes the voltage measuring unit 11V to execute the measurement processing. The voltage value data Dv output from and the current value data Da output from the current measuring unit 11A are stored in the storage unit 16.

Further, the processing unit 15 functions as a "first calculation unit", and based on the above voltage value data Dv and current value data Da, the amount of electric energy (instantaneous value) supplied to the load via the power supply line L. Is calculated to generate electric energy data Dw, and the generated electric energy data Dw is stored in the storage unit 16. Further, the processing unit 15 causes the display unit 14 to display the value of the electric energy data Dw, and causes the communication unit 12 to transmit the electric energy data Dw to the mobile information terminal 2.

Further, the processing unit 15 functions as a "second calculation unit", calculates the integrated power amount within the designated time based on the electric energy data Dw, generates the integrated electric energy data Dt, and generates the integrated electric power. The amount data Dt is stored in the storage unit 16. Further, the processing unit 15 causes the display unit 14 to display the value of the integrated electric energy data Dt, and causes the communication unit 12 to transmit the integrated electric energy data Dt to the mobile information terminal 2.

The storage unit 16 includes a measurement system program Ds1 in which the procedure of each of the above processes executed by the processing unit 15 is recorded, the above voltage value data Dv, current value data Da, electric energy data Dw, and integrated electric energy data Dt. And so on.

On the other hand, the mobile information terminal 2 corresponds to "a second device configured separately from the first device and capable of communicating with the first device", and as described above, the power meter 1 and the mobile information terminal 2 Together, they form a "measurement system". As an example, the mobile information terminal 2 is composed of an existing tablet terminal, a smartphone, a personal computer, or the like in which the measurement system program Ds2 is installed.

In a broad sense, "tablet terminal" means "PDA (personal digital assistant) equipped with a pointing device such as a touch panel and a display device", and "smartphone" has a function of "PDA (mobile information terminal)". In this specification, it means "mobile phone", but in this specification, "tablet terminal" in the broad sense and "smartphone" in the broad sense, "arbitrary functions can be added by installing various programs, and the operating environment and display of the terminal". "Things that can customize the environment, etc." are called "tablet terminals" and "smartphones."

In this case, in this example, as shown in FIG. 1, the mobile information terminal 2 is configured by a smartphone including a camera 21, communication units 22a and 22b, an operation unit 23, a display unit 24, a processing unit 25, and a storage unit 26. It is assumed that Although the actual mobile information terminal 2 includes various components for realizing the function as a "smartphone" in addition to the above-mentioned components 21 to 27, it is easy to understand the present invention. Therefore, the illustration and description of those components will be omitted.

The camera 21 outputs the captured image data Dp and executes imaging processing for target like electricity meter M under the control of the processing unit 25. The communication unit 22a is composed of a communication adapter capable of wireless communication according to a short-range wireless communication standard such as Bluetooth in the same manner as the communication unit 12 of the power meter 1 described above. As will be described later, the communication unit 22a transmits and receives various data to and from various wireless communication devices such as the power meter 1 under the control of the processing unit 25. As an example, the communication unit 22b is configured by a communication adapter that can be connected to a network N composed of a mobile phone communication network or an Internet communication network, and is connected to a data server 3 or the like via the network N to transmit various data. Send and receive.

The operation unit 23 is an example of the "operation unit" in the "detection unit", and is a touch panel arranged on the front side of the display unit 24 and various types for making the mobile information terminal 2 function as a "smartphone". An operation switch is provided, and an operation signal corresponding to the operation is output to the processing unit 25. The display unit 24 includes a liquid crystal display panel as an example, and displays various display screens under the control of the processing unit 25.

The processing unit 25 comprehensively controls the mobile information terminal 2. Specifically, the processing unit 25 controls each component 21 to 24 and the like according to a basic program for making the mobile information terminal 2 function as a smartphone. Further, the processing unit 25 functions as a “processing unit”, and based on the measurement system program Ds2 stored in the storage unit 26, the report data generation process 30 (operation of the power meter 1) shown in FIG. 2 is performed. The process of controlling) is executed, and the wattmeter 1 is made to execute the measurement (calculation) process of the integrated electric energy.

Further, the processing unit 25 constitutes a “detection unit” in combination with the operation unit 23, and when the watt-hour meter M is an “inductive watt-hour meter”, it is based on an operation signal from the operation unit 23. "Timing corresponding to one rotation of the watt-hour meter" is detected as "timing corresponding to the cycle notified by the cycle notification operation by the watt-hour meter", and the above-mentioned watt-hour meter M is "electronic watt-hour meter". In the case of "," based on the operation signal from the operation unit 23, "timing corresponding to one cycle notification operation by the metric pulse notification unit" as "timing corresponding to the cycle notified by the cycle notification operation by the watt hour meter". Is detected.

The processing unit 25, when the power meter M above SL is "inductive energy meter" analyzes the imaging data Dp output from the camera 21, corresponding to one rotation of the "metering disc timing When the above-mentioned watt-hour meter M is an "electronic watt-hour meter", the imaging data Dp output from the camera 21 is analyzed and "corresponding to one periodic notification operation by the measurement pulse notification unit ". "Timing to do" is detected.

Further, the processing unit 25 generates the report data Dr based on the integrated electric energy data Dt or the like transmitted from the power meter 1, stores the generated report data Dr in the storage unit 26, and also receives the generated report data Dr from the user. According to the instruction, the data is transmitted to the data server 3 via the communication unit 22b and the network N.

The storage unit 26 stores the above-mentioned basic program and the measurement system program Ds2, and also stores the electric energy data Dw and the integrated electric energy data Dt transmitted from the wattmeter 1, the imaging data Dp, the report data Dr, and the like. To do. In this case, in the measurement system 100 of this example, the measurement system program Ds2 in which the procedure of each of the above processes executed by the processing unit 25 is recorded corresponds to the “measurement system program”. It should be noted that all or part of the measurement system program Ds2 and other various data are mounted on the mobile information terminal 2 in place of the storage unit 26 configured in the internal memory of the mobile information terminal 2. It can also be stored in the removable memory of.

As an example, the data server 3 is a server operated by a user (owner) of the power meter 1 or the mobile information terminal 2 for the purpose of accumulating report data Dr or the like, and is mobile information via network N. It is constructed so that various terminals such as the terminal 2 can be connected.

Next, a method of using the measurement system 100 will be described with reference to the attached drawings.

In this measurement system 100, not only the usage mode in which the power meter 1 and the mobile information terminal 2 are combined (using both) to execute various measurement processes, but also various measurement processes using the power meter 1 alone are used. Although it is configured so that the usage pattern for executing the above can be selected, the description of the usage pattern in which the power meter 1 is used alone is omitted in order to facilitate the understanding of the configuration of the "measurement system". A mode in which the power meter 1 and the mobile information terminal 2 are used in combination will be described.

The installation of the measurement system program Ds2 on the mobile information terminal 2 and the Bluetooth pairing between the communication unit 12 of the power meter 1 and the communication unit 22a of the mobile information terminal 2 have already been completed. And.

In this measurement system 100, as will be described later, when measuring the "integrated electric energy", the watt-hour meter M installed in the power supply line L is "N times (N is " the integrated time is "a predetermined time or longer" or more. A configuration is adopted in which the integrated power amount is measured during the periodic notification operation (any natural number) that is specified (changed) so as to satisfy the condition of "becomes". Further, in the measurement system 100 of this example, a touch operation on the operation unit 23 of the mobile information terminal 2 is performed for the timing corresponding to the cycle notified by the cycle notification operation by the watt hour meter M (an example of "timing identification operation"). It is configured so that either a usage method of detecting by the camera 21 or a usage method of detecting by image analysis of the imaging data Dp obtained by imaging the watt-hour meter M by the camera 21 can be selected.

In such a configuration, for example, when the timing corresponding to the periodic notification operation by the induction type watt-hour meter is detected by a touch operation on the operation unit 23, while looking at the watt-hour meter M (rotating measuring disk). When the mark-imparting portion (for example, the portion colored in red) of the measuring disk is located directly in front of the watt-hour meter M, a touch operation is performed on the operation unit 23 (touch panel). In this case, a slight deviation may occur between the moment when the mark-imparting unit is located directly in front of the watt hour meter M and the moment when the touch operation to the operation unit 23 is performed, and the amount of the deviation is the operation. It changes slightly each time.

On the other hand, when the timing corresponding to the periodic notification operation is detected by image analysis of the imaged data Dp obtained by imaging the watt-hour meter M, the above-mentioned deviation amount that may occur in the usage method of detecting by touch operation. There is almost no change in. However, in both the detection by touch operation and the detection by image analysis, after it is detected that the mark-imparting portion of the measuring disk is located in front of the personal digital assistant 2, the integrated power amount is measured by the wattmeter 1. A time lag occurs due to the transmission and reception of the control command Dc between the mobile information terminal 2 and the power meter 1 by the time the operation is started / ended, and this time lag is caused by the mobile information terminal 2 (communication unit 22a) and the power meter 1. It may change each time depending on the communication environment between (communication units 12).

On the other hand, in the induction type watt hour meter M, the measuring disk rotates at high speed when the amount of electric power supplied to the load via the power supply line L is large per unit time. Therefore, when the amount of power supplied is large, the time required for one periodic notification operation (time required for one rotation of the measuring disk) becomes very short. Therefore, when the amount of power supply is large, the "change in time lag during transmission / reception of the control command Dc" in the "time required for one periodic notification operation" becomes large, and as a result, the integration in one periodic notification operation is performed. It may be difficult to measure the amount of power accurately. Although detailed description is omitted, even when the watt-hour meter M is an electronic watt-hour meter, it is difficult to accurately measure the integrated power amount in one periodic notification operation for the same reason. There is a risk of becoming.

Therefore, in the measurement system 100 of this example, the electric energy integration processing is performed for a sufficient time that can sufficiently reduce the influence of the change in the processing time that may change depending on the communication environment and the like as described above. In order to execute and generate highly accurate integrated electric energy data Dt, a configuration is adopted in which the number of times of the above "N times" is changed according to the amount of electric energy supplied to the load via the power supply line L. Has been done.

Specifically, first, the power meter 1 is installed in the power supply line L. At this time, as shown in FIG. 1, the power supply line L (lead wire La, Lb) and the voltage measuring unit 11V are connected via the measuring cable, and the conducting wire is connected by the clamp sensor connected to the current measuring unit 11A. Clamp La. When the measurement cable cannot be connected or the clamp sensor cannot be used to clamp the measurement cable in the vicinity of the watt-hour meter M in the power supply line L, the watt-hour meter M is slightly within the communicable range of the communication units 12 and 22a. The electricity meter 1 may be installed at a distant position. Further, when there is a possibility that conductive paths that bypass the wattmeter M are arranged side by side, the power supply line L on the upstream side of such a conductive path, or such a conductive path becomes the original power supply line L. A power meter 1 may be installed at the merged portion.

Next, the operation unit 23 of the mobile information terminal 2 is operated at a position where the watt-hour meter M can be visually recognized to activate the measurement system program Ds2. In response to this, the processing unit 25 starts the report data generation processing 30 shown in FIG. In this report data generation process 30, the processing unit 25 first displays an input screen for measurement information (not shown) on the display unit 24, and causes the "measurement date and time", "measurement location", and "name of person in charge of work (or person in charge)". Person code) ”and specification information (instrument constants, etc.) related to the watt-hour meter M installed in the power supply line L are input to the operator and acquired (step 31). At this time, by operating the operation unit 23 while referring to the main panel of the watt-hour meter M, information for specifying the type of the power supply line L in which the watt-hour meter M is installed (“single-phase two-wire”). , "Information such as" 100V "and" 50Hz ") and the" instrument constant "of the watt hour meter M.

In this case, when the installed watt-hour meter M is an induction type watt-hour meter (mechanical watt-hour meter), for example, "integrated power of instrument constant (□□ kWh) with" ○○○ rev / □□ kWh "" A constant that indicates that the measuring disk rotates XX while the quantity is being weighed) ”is written on the main panel. When the installed watt-hour meter M is an electronic watt-hour meter, for example, "measurement while the integrated electric energy of □□ kWh" with "○○○ pulse / □□ kWh" is measured. A constant that indicates that the pulse notification unit (LED, etc.) blinks XX times) ”is written on the main panel. Therefore, while referring to the main panel of the watt-hour meter M, the operation unit 23 is operated to input the "instrument constant" of the watt-hour meter M to be measured.

Next, the processing unit 25 causes the wattmeter 1 to generate and transmit the electric energy data Dw by transmitting the control command Dc from the communication unit 22a to the wattmeter 1 (acquisition of instantaneous electric energy data: step 32). .. At this time, in the power meter 1, when the control command Dc from the mobile information terminal 2 is received by the communication unit 12, the processing unit 15 follows the measurement system program Ds1 and causes the voltage measurement unit 11V and the current measurement unit 11A. To execute the measurement process. In response to this, the voltage measuring unit 11V measures the voltage value of the voltage applied to the power supply line L and outputs the voltage value data Dv, and the current measuring unit 11A measures the current value of the current flowing through the power supply line L. Is measured and the current value data Da is output.

Further, the processing unit 15 functions as a "first calculation unit", and is a power supply line based on the voltage value data Dv output from the voltage measurement unit 11V and the current value data Da output from the current measurement unit 11A. The amount of electric power (instantaneous electric energy) supplied to the load via L is calculated, the calculation result is displayed on the display unit 14, and the electric energy data Dw is generated and stored in the storage unit 16. Further, the processing unit 15 causes the communication unit 12 to transmit the generated electric energy data Dw to the mobile information terminal 2. In this example, it is assumed that the electric energy data Dw is repeatedly generated by the power meter 1 until the report data generation process 30 described later is completed.

On the other hand, in the mobile information terminal 2, the processing unit 25 stores the electric energy data Dw transmitted from the power meter 1 and received by the communication unit 22a in the storage unit 26, and accurately integrates the integrated electric energy in the measurement process. The number of measurement cycles required to obtain the electric energy data Dt (the number of “N times” described above) is specified (step 33).

Specifically, the processing unit 25 first, first, based on the "instrument constant" of the watt-hour meter M acquired in step 31, and the watt-hour data Dw (instantaneous electric energy) acquired in step 32, the watt-hour meter M. Calculates the time required for one periodic notification operation by. In this case, a shorter time is calculated when the amount of power supplied through the power supply line L is larger, and a longer time is calculated when the amount of power supplied via the power supply line L is smaller.

Next, the processing unit 25, as an example, states that the condition of "integration time ≥ 10 seconds"(" the integration time of the electric energy at the time of calculation of the integrated electric energy by the second arithmetic unit is equal to or longer than a predetermined time". It is an example of "conditions", and the number of measurement cycles that satisfy the above-mentioned example of the time at which the influence of the time lag change becomes sufficiently small) is calculated.

At this time, as an example, when the time required for one cycle notification operation is "1 second", "N = 10" which is the minimum value among the number of measurement cycles satisfying the condition of "integration time ≥ 10 seconds". The number of times (number of cycles) with "times" is calculated. When the time required for one cycle notification operation is "5 seconds", the number of times is "N = 2 times", which is the minimum value among the number of measurement cycles satisfying the condition of "integration time ≥ 10 seconds". (Number of cycles) is calculated. Further, when the time required for one cycle notification operation is "10 seconds", the number of times with "N = 1 time" which is the minimum value among the number of measurement cycles satisfying the condition of "integration time ≥ 10 seconds". (Number of cycles) is calculated. Further, even when the time required for one cycle notification operation is "20 seconds", the minimum value of the number of measurement cycles satisfying the condition of "integration time ≥ 10 seconds" is "N = 1 time". The number of times (number of cycles) is calculated.

Subsequently, the processing unit 25 resets the value of the counter specified in the storage unit 26 (set to “count value = 0”) in order to count the number of integrated cycles (step 34), and as an example, “camera”. Display the message "Please take a picture of the watt hour meter." On the display unit 24. In addition, the processing unit 25 controls the camera 21 to start imaging, and displays the image of the imaging data Dp output from the camera 21 on the display unit 24. Further, the processing unit 25 performs image analysis on the imaging data Dp, and whether or not it is possible to detect the periodic notification operation (rotation of the measurement disk or blinking of the measurement pulse notification unit) by the watt hour meter M. (Step 35).

At this time, when it is determined that the watt hour meter M can be imaged with sufficient size and sufficient brightness, and as a result, the periodic notification operation can be detected by the image analysis of the imaged data Dp. In addition, the processing unit 25 executes the control processing 40 shown in FIG. In this control process 40, the processing unit 25 analyzes the imaging data Dp output from the camera 21 to obtain a mark when the target watt-hour meter M is an induction watt-hour meter (for example, red). The timing when the colored part) moves directly in front of the watt-hour meter M is detected, and when the target watt-hour meter M is an electronic watt-hour meter, the timing when the measurement pulse notification unit (for example, LED) is turned on. (Or the timing at which the light is turned off) is detected (step 41).

Further, the processing unit 25 determines whether or not the count value of the counter is "0" when the periodic notification operation for one time is detected (step 42). At this time, in this example immediately after starting the control process 40, since the count value is "0", the processing unit 25 issues a control command Dc for starting the measurement process of the integrated electric energy from the communication unit 22a to the power meter 1. (Step 43).

In response to this, in the power meter 1, when the control command Dc transmitted from the mobile information terminal 2 is received by the communication unit 12, the processing unit 15 functions as a "second calculation unit" to generate electric power. The integration process of the value of the quantity data Dw is started. After that, as will be described later, until the control command Dc for terminating the measurement process of the integrated electric energy is transmitted from the mobile information terminal 2, the integrated electric energy data Dw value is integrated in the wattmeter 1 (calculation process of the integrated electric energy). ) Is continuously executed.

On the other hand, in the mobile information terminal 2, the processing unit 25 counts up the count value of the counter after transmitting the control command Dc in step 43 (adding "1" to the count value: step 44). Further, the processing unit 25 determines whether or not the value obtained by subtracting “1” from the count value reaches the “required number of measurement cycles” specified in step 33 of the report data generation process 30 (step 45). .. At this time, in this example in which the value obtained by subtracting "1" from the count value is "0", the processing unit 25 determines that the "required number of measurement cycles" has not been reached, and performs image analysis of the imaging data Dp. This is performed to monitor the presence or absence of one periodic notification operation (step 41).

Further, the processing unit 25 performs one periodic notification operation on the watt hour meter M, and when this is detected (step 41), the processing unit 25 does not have a counter count value of "0" (this). In the example, it is determined to be "1" (step 42). At this time, the processing unit 25 counts up the count value of the counter (step 44), and determines whether or not the value obtained by subtracting "1" from the count value after the count-up reaches the "required number of measurement cycles". Determine (step 45).

In this case, as an example, when the specified "required measurement cycle number" is "5", the processing unit 25 determines that the "required measurement cycle number" has not been reached, and the image of the captured data Dp. An analysis is performed to monitor the presence or absence of one periodic notification operation (step 41). Further, by repeating the above steps 41 to 45, when the count value becomes "6" due to the count-up in step 44, the processing unit 25 determines that the "required number of measurement cycles" has been reached. (Step 45), the control command Dc for terminating the measurement process of the integrated electric energy is transmitted from the communication unit 22a to the wattmeter 1 (step 46), the control process 40 is terminated, and the process returns to the report data generation process 30.

In response to this, in the electric energy meter 1, when the control command Dc transmitted from the mobile information terminal 2 is received by the communication unit 12, the processing unit 15 functions as a "second arithmetic unit" to generate electric power. The integration process of the value of the amount data Dw is completed, the integrated electric energy data Dt is generated based on the calculation result (integrated value) at that time, and the generated integrated electric energy data Dt is stored in the storage unit 16. Further, the processing unit 15 causes the display unit 14 to display the value of the generated integrated electric energy data Dt, and causes the communication unit 12 to transmit the value to the mobile information terminal 2.

On the other hand, in step 35 described above, the watt hour meter M is used in the image analysis of the imaging data Dp due to the fact that the image was taken from a position far away from the watt hour meter M or the image was taken in a dark place. When it is determined that the periodic notification operation cannot be detected, the processing unit 25 executes the control process 50 shown in FIG. 4 instead of the control process 40 described above. In this control process 50, as an example, whether or not a message "Please touch the screen according to the operation of the power meter" is displayed on the display unit 24 and a touch operation is performed on the operation unit 23 (touch panel). Is monitored (step 51). At this time, the user who sees the above message touches the operation unit 23 at the timing when the mark-imparting unit on the measurement disk is located directly in front of the measurement disk or when the measurement pulse notification unit is turned on (or off). I do.

Further, when the processing unit 25 detects a touch operation on the operation unit 23 (that is, when it detects a timing corresponding to the cycle notified by the cycle notification operation: the mark giving unit moves directly in front of the watt hour meter M. When the timing or the timing corresponding to the periodic notification operation by the measurement pulse notification unit is detected), it is determined whether or not the count value of the counter is “0” (step 52). At this time, in this example immediately after starting the control process 40, since the count value is "0", the processing unit 25 issues a control command Dc for starting the measurement process of the integrated electric energy from the communication unit 22a to the power meter 1. (Step 53).

In response to this, in the power meter 1, the processing unit 15 functions as a "second arithmetic unit" to start the integration processing of the value of the electric energy data Dw, and measures the integrated electric energy as described later. Until the control command Dc for terminating the process is transmitted from the mobile information terminal 2, the integrated process of the value of the electric energy data Dw (calculation process of the integrated electric energy) is continuously executed.

On the other hand, in the mobile information terminal 2, the processing unit 25 counts up the count value of the counter after transmitting the control command Dc in step 53 (step 54). Further, the processing unit 25 determines whether or not the value obtained by subtracting “1” from the count value has reached the “required number of measurement cycles” (step 55). At this time, in this example in which the value obtained by subtracting "1" from the count value is "0", the processing unit 25 determines that the "required number of measurement cycles" has not been reached, and touches the operation unit 23. The presence or absence is monitored (step 51).

Further, when the processing unit 25 detects a touch operation on the operation unit 23 accompanying one cycle notification operation by the watt hour meter M (step 51), the processing unit 25 determines that the counter count value is “0”. It is determined that there is no (in this example, it is "1") (step 52). At this time, the processing unit 25 counts up the count value of the counter (step 54), and determines whether or not the value obtained by subtracting “1” from the count value after the count-up reaches the “required number of measurement cycles”. Determine (step 55).

Further, by repeating the above steps 51 to 55, when the value obtained by subtracting "1" from the count value by the count-up in step 54 reaches the "required number of measurement cycles" (step 55), the integrated power is accumulated. A control command Dc for terminating the quantity measurement process is transmitted from the communication unit 22a to the power meter 1 (step 56), the control process 50 is terminated, and the process returns to the report data generation process 30.

In response to this, in the power meter 1, the processing unit 15 functions as a "second calculation unit" to end the integration process of the value of the electric energy data Dw, and the calculation result (integrated value) at that time is obtained. Based on this, the integrated electric energy data Dt is generated, and the generated integrated electric energy data Dt is stored in the storage unit 16. Further, the processing unit 15 causes the display unit 14 to display the value of the generated integrated electric energy data Dt, and causes the communication unit 12 to transmit the value to the mobile information terminal 2.

Further, in the mobile information terminal 2, the storage unit 26 stores the integrated electric energy data Dt transmitted from the power meter 1 by executing any of the above control processes 40 and 50 in the storage unit 26, and the integrated power is stored in the storage unit 26. The report data Dr is generated based on the quantity data Dt (step 36), and the report data generation process 30 is terminated. In this case, in the measurement system 100 of this example, the number of times of the above "N times" specified by the storage unit 26 is notified to the operator regardless of which of the above control processes 40 and 50 is executed. The measurement process is executed without any problem.

Therefore, when the operator detects the "timing corresponding to the cycle notified by the cycle notification operation" by the image analysis targeting the imaged data Dp obtained by imaging the watt-hour meter M, which of the watt-hour meter M is used. When the measurement work is executed without knowing whether the measurement process is completed if the image is continuously imaged for only a long time, and the "timing corresponding to the cycle notified by the cycle notification operation" is detected by the touch operation on the operation unit 23. The measurement operation is executed without knowing how many times the touch operation on the operation unit 23 should be performed to complete the measurement process.

As a result, in the measurement system 100 of this example, the generation start timing and end timing of the integrated electric energy data Dt (the start point of the integrated time and the start point of the integrated time) at an arbitrary timing asynchronous with the cycle notified by the periodic notification operation by the watt hour meter M. It is difficult to detect the timing corresponding to the end point). Therefore, it is preferably avoided that the report data Dr whose integrated electric energy data Dt value is different from the actual value is generated.

Next, the processing unit 25 transmits the generated report data Dr to the data server 3 via the communication unit 22b and the network N. As a result, the user downloads the report data Dr from the data server 3 using a personal computer (not shown) that can be connected to the data server 3, and then displays the measurement result display or prints it with a printing device. As a result, it is possible to accurately and easily grasp whether or not the watt-hour meter M has accurately measured the integrated power amount based on the measurement target image or the like in the measurement result display.

As described above, in the measurement system 100, the processing unit 25 sets the integrated power amount during the N times periodic notification operation of the watt-hour meter M as the “second calculation unit (processing unit 15 of the wattmeter 1)”. causes computed, the "second condition of the integration time of the power amount is equal to or greater than a predefined time during the operation of the integrated electricity by the calculation unit: as an example, conditions for the" integration time ≧ 10 seconds " It defines a number of times in the "N times" to meet the "to (change). Further, in this measurement system program Ds2, the processing unit 25 of the measurement system 100 is made to execute the above processing.

Therefore, according to the measurement system 100 and the measurement system program Ds2, the integration is performed without causing the operator to recognize how many times the electric energy meter M performs the periodic notification operation to integrate the electric energy. Since the electric energy is measured (calculated) and the integrated electric energy data Dt is generated, it is surely avoided that the measured integrated electric energy is intentionally adjusted to a value different from the actual value, and the integrated electric energy is immediately measured. It is possible to provide the integrated electric energy data Dt in which the highly accurate integrated electric energy is recorded.

Further, in this measurement system 100, the "detection unit" includes an operation unit 23 capable of "timing identification operation (in this example, a touch operation on the touch panel)" synchronized with the cycle notified by the cycle notification operation. Based on the "timing specifying operation" for the operation unit 23, the timing corresponding to the cycle notified by the cycle notification operation can be detected. Therefore, according to the measurement system 100 and the measurement system program Ds2, the period corresponding to the cycle of the cycle notification operation by the watt-hour meter M is detected by a relatively simple configuration or a simple process, and the integrated electric energy is measured. Since the integrated electric energy data Dt can be generated by (calculation), the measurement system 100 capable of acquiring the integrated electric energy data Dt in which the highly accurate integrated electric energy is recorded without causing a rise in the manufacturing cost. Can be provided.

Further, in the measurement system 100, an imaging camera capable 21 electrodeposition dynamometer M, processing unit 2 5 that identifies a period to be broadcast by the periodic reporting operation by analyzing the imaging data Dp output from the camera 21 with the door, on the basis of the analysis result of the processing unit 25, which is detectably constituting the timing corresponding to the period to be broadcast by the periodic notification operation. Therefore, according to the measurement system 100 and the measurement system program Ds2, the integrated electric energy is measured (calculated) by detecting the timing corresponding to the cycle notified by the periodic notification operation only by imaging the watt-hour meter M. Since the integrated electric energy data Dt can be generated, it is possible for an operator who is unfamiliar with the operation of this type of device to easily acquire the integrated electric energy data Dt in which the integrated electric energy is recorded with high accuracy. it can.

Further, in this measurement system 100, a "first device (power meter 1)" having a "measurement unit (voltage measurement unit 11V and current measurement unit 11A in this example)", a "detection unit", and a storage unit 26 It is configured to have a "second device (portable information terminal 2)" which is configured separately from the "first device" and is configured to be able to communicate with the "first device". .. Therefore, according to the measurement system 100 and the measurement system program Ds2, in a state where the wattmeter 1 is arranged at a position suitable for measuring the electric energy, the wattmeter M can be reliably visually recognized or imaged. Since the integrated electric energy data Dt can be generated by operating the wattmeter 1 remotely from the mobile information terminal 2, it is possible to reliably and easily acquire the highly accurate integrated electric energy data Dt.

Na us, integration defines the "advance over a specified time (" Conditions of the integration time ≧ 10 seconds ", for example) times as possible accumulating the value of the power quantity data Dw" satisfies "N times" power The configuration and method for generating the amount data Dt have been described as an example, but the condition is that "the number of times the value of the electric energy data Dw can be integrated over a predetermined time is more than the specified number of times". It is possible to specify "N times" so as to satisfy the condition, or instead of such a condition, specify "N times" so as to satisfy the condition of "the number of times of being randomly changed".

Further, the configuration / method for defining the number of "N times" before starting the calculation of the integrated electric energy data Dt has been described as an example, but "N times" after starting the calculation of the integrated electric energy data Dt. It is also possible to adopt a configuration / method that specifies the number of times. Specifically, after starting the calculation of the integrated electric energy data Dt, the acquisition of the "instrument constant" and the specification of the instantaneous electric energy (acquisition of the electric energy data Dw) are executed, and based on the acquired information, "N" is executed. "Times" can be specified.

Further, the measurement system 100 in which the power meter 1 as the "first device" and the mobile information terminal 2 as the "second device" together function as the "measurement system" has been described as an example. The "measurement system" can also be configured by a device (measurement device) that integrates the function of the power meter 1 and the function of the mobile information terminal 2 in the measurement system 100 (not shown). Further, even when the "measurement system" is composed of a plurality of devices as in the above-mentioned measurement system 100, the "measurement unit", the "first calculation unit", the "second calculation unit", and the "second calculation unit" are used. The "detection unit" and the "processing unit" can be separate components of the device, or any plurality of them can be combined to form a component of one device.

Further, regarding the acquisition of the "instrument constant", for example, the front panel of the watt-hour meter M is imaged by the camera 21 of the portable information terminal 2, and the imaged data is analyzed to specify the "instrument constant". By operating the operation unit 23 of the information terminal 2 and inputting the model number of the watt hour meter M or the like, the "instrument constant" associated with the input number can be obtained from the server in which such information is accumulated. It is possible to adopt the configuration to download and acquire. Further, when the types of "electric energy meters" to be measured are limited, selection candidates of "instrument constants" of those "electric energy meters" are registered in advance in the mobile information terminal 2, and measurement work is performed. At that time, it is possible to adopt a configuration in which an arbitrary "instrument constant" is selected from the registered selection candidates.

In addition, an example of executing a series of processes for the power supply lines L (lead wires La, Lb) of the "single-phase two-wire" has been described, but the "conductive path" to be measured is not limited to this, and is "single-phase two-wire". Various "conductive paths" such as "phase three-wire" and "three-phase four-wire" can be measured.

100 Measurement system 1 Electricity meter 2 Mobile information terminal 11A Current measurement unit 11V Voltage measurement unit 12, 22a Communication unit 15, 25 Processing unit 16, 26 Storage unit 21 Camera 23 Operation unit 30 Report data generation processing 40, 50 Control processing Da Current value data Dc control command Dp imaging data Dr report data Ds2 measurement system program Dt integrated power data Dv voltage value data Dw power data L power supply line La, Lb lead wire M watt-hour meter

Claims (3)

A measuring unit that measures the voltage value of the voltage applied to the conductive path where the watt-hour meter is installed and the current value of the current flowing through the conductive path.
A detection unit that detects the timing corresponding to the cycle notified by the cycle notification operation by the watt hour meter, and
A first calculation unit that calculates the amount of electric power supplied to the load via the conductive path based on the voltage value and the current value measured by the measurement unit.
A second calculation unit that calculates the integrated power amount based on the power amount calculated by the first calculation unit, and
The second calculation unit is provided with a processing unit for calculating the integrated electric energy.
The detection unit includes an operation unit capable of performing a timing specifying operation synchronized with the notified cycle, and can detect a timing corresponding to the notified cycle based on the timing specifying operation for the operation unit. Consists of
The processing unit is the second calculation unit according to the timing at which the integrated electric energy is detected by the detection unit while the watt hour meter performs the periodic notification operation N times (N is a natural number). Is calculated, and the number of times of N times is specified so as to satisfy the condition that the integrated time of the electric energy at the time of calculating the integrated electric energy by the second arithmetic unit becomes equal to or longer than a predetermined time. system. A first device having at least the measuring unit and
A claim that includes at least the detection unit and the processing unit, and a second device that is configured separately from the first device and is configured to be communicable with the first device. 1 Symbol placement of the measurement system. A measuring unit that measures the voltage value of the voltage applied to the conductive path where the watt-hour meter is installed and the current value of the current flowing through the conductive path.
A detection unit that detects the timing corresponding to the cycle notified by the cycle notification operation by the watt hour meter, and
A first calculation unit that calculates the amount of electric power supplied to the load via the conductive path based on the voltage value and the current value measured by the measurement unit.
A second calculation unit that calculates the integrated power amount based on the power amount calculated by the first calculation unit, and
E Bei a processing unit for calculating the integrated electricity to the second computing unit,
The detection unit includes an operation unit capable of performing a timing specifying operation synchronized with the notified cycle, and can detect a timing corresponding to the notified cycle based on the timing specifying operation for the operation unit. For the processing unit of the measurement system configured in
The second arithmetic unit calculates the integrated electric energy while the watt-hour meter performs the periodic notification operation N times (N is a natural number) according to the timing detected by the detection unit. A measurement system that executes a process that specifies the number of N times so as to satisfy the condition that the integrated time of the integrated power amount becomes equal to or longer than a predetermined time at the time of calculating the integrated electric energy amount by the second calculation unit. Program for.

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