JP2018036095A - Measurement device, method for controlling the device, and control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the convenience of a user.SOLUTION: A measurement device (10) includes: a measurement unit for measuring a certain amount and acquiring a plurality of measured values; a display unit (11) for displaying the measured values; operation buttons (123) and (124) for switching a measured value displayed in a first display region (110) of the display unit (11); and operation buttons (121) and (122) for switching a measured value displayed in a second display region (111) separate from the first display region.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a measuring device that measures a certain amount, a control method thereof, and a control program. Specifically, the present invention relates to a measuring device that measures various electrical variables such as current, voltage, power, and electric energy in a power line.

  Recently, in order to reduce the production cost, the industry has been demanded to reduce the power consumption (energy consumption) of various electric devices used in production (hereinafter abbreviated as “energy saving”). In general households, various home appliances (household electrical appliances) are required to save energy in order to reduce electricity charges.

  In general, energy saving starts from grasping the actual state of power consumption (power consumption). For this reason, it is considered to provide a measuring device in a distribution board, indoor wiring, or various electric devices in a building such as a factory or a house to measure power consumption. Examples of conventional measurement systems include those described in Patent Documents 1 to 3.

  The monitor device described in Patent Document 1 is used in an energy measurement system including a measurement unit and a collection unit, and is connected to an external display. The monitor device executes a group setting process for linking a circuit to an arbitrary group and a display process for displaying each linked group on the external display together with the energy usage of the group.

  The power consumption display device described in Patent Literature 2 receives power consumption values of a plurality of home appliances, stores the received power consumption values of each home appliance in a storage unit, and stores the power consumption of each home appliance. The values are compared after adding the power consumption values of the same type of household electrical appliances, ranked for each power consumption value, and each ranked power consumption value is assigned to each household electrical appliance based on the ranking. It is displayed on the display unit together with the device information.

  The power information display device described in Patent Document 3 displays the amount of power generation on the left side of the power status display monitor, displays the power used on the right side, and displays the power for power sale or purchase in the center. The lower area is displayed in blue when the power is sold, and orange when the power is purchased.

JP 2014-023280 A (published February 03, 2014) JP 2014-021096 A (published February 03, 2014) Japanese Patent Laying-Open No. 2015-070694 (released on April 13, 2015)

  In the devices described in Patent Documents 1 to 3, the measured values of the electrical variables are displayed by a device different from the measuring device that measures the electrical variables. On the other hand, there is also a measuring device including a display unit that displays the measurement value. With such a measuring device, an operator can check the measured value at the time of inspection or maintenance.

  Usually, the measuring device can measure various electrical variables. On the other hand, the measurement device is required to be downsized, and the display size of the display unit is also restricted. For this reason, it is difficult to simultaneously display various measurement values on the display unit.

  Therefore, in the conventional measurement device including the display unit, the various measurement values are grouped in advance for each predetermined number (for example, four), and a predetermined button provided on the measurement device is set to the user. By pressing, the group displayed on the display unit is switched. Thereby, the user can confirm the various measurement values by pressing the predetermined button several times.

  However, a plurality of measurement values that the user wants to confirm at the same time are not necessarily included in the same group. In this case, it is necessary for the user to remember the measurement value before switching, which is troublesome for the user.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to realize a measuring apparatus that can improve user convenience.

  In order to solve the above problems, a measurement device according to an aspect of the present invention includes a measurement unit that measures a certain amount and acquires a plurality of measurement values, and a display unit that displays the plurality of measurement values. A measuring device provided with a first switching button for switching the measured value displayed in the first display area of the display unit, and a second different from the first display area of the display unit And a second switching button for switching the measurement value displayed in the display area.

  According to said structure, the measured value displayed on a 1st display area and the measured value displayed on a 2nd display area can be switched separately. Accordingly, the user can switch the measurement value displayed on the other while maintaining the measurement value displayed on one of the first and second display areas. Therefore, the possibility that the user can simultaneously display a plurality of measurement values that the user wants to check at the same time is higher than in the past, and as a result, the convenience for the user can be improved.

  One or more measurement values may be displayed in each display area. Moreover, the measured value displayed on each display area may be the same or different. The display unit may be a segment method or a dot matrix method, but the segment method is preferable from the viewpoint of power consumption.

  By the way, some measuring devices can measure a wide variety of measurement items. In this case, when the measurement values of various measurement items are switched using only the first switching button, the user must switch the first switching button until the measurement value of the measurement item desired by the user is displayed in the first display area. There is a possibility that the number of times of operation increases and it takes time.

  Therefore, in the measurement device according to this aspect, the first switching button selects the measurement value displayed in the first display area from any of the plurality of measurement items included in the first subgroup of the first group. The measurement values displayed in the first display area are included in a second subgroup that is a subgroup of the first group and is different from the first subgroup. There may be further provided a third switching button for switching to any one of the plurality of measurement items.

  In this case, since the measurement value can be switched using the two switching buttons, the measurement value of the measurement item desired by the user is displayed in the first display area as compared with the case where the measurement value is switched using one switching button. The number of times that the user operates the first or third switching button can be reduced before the display is displayed, and the measurement value can be displayed quickly.

  Similarly, in the measurement device according to this aspect, the second switch button displays the measurement value displayed in the second display area as any one of the plurality of measurement items included in the first subgroup of the second group. The measured value displayed in the second display area is switched to a second subgroup that is a subgroup of the second group and is different from the first subgroup. You may further provide the 4th switching button for switching to the measurement value in any one of the some measurement item contained.

  In this case, since the measurement value can be switched using the two switching buttons, the measurement value of the measurement item desired by the user is displayed in the second display area as compared with the case where the measurement value is switched using the single switching button. The number of times that the user operates the second or fourth switching button can be reduced before the display is displayed, and the measurement value can be displayed quickly.

  Note that the measurement items included in the first subgroup and the measurement items included in the second subgroup may be different from each other, or some of them may be the same.

  In the measurement apparatus according to this aspect, the measurement value displayed in the first display area is an integrated value indicating the cumulative value of the amount, and the measurement value displayed in the second display area is It may be an instantaneous value indicating the amount. As a result, the user can switch the display of the instantaneous value while maintaining the display of the integrated value in the measuring device, or can switch the display of the integrated value while maintaining the display of the instantaneous value. As a result, user convenience is further improved.

  For example, in the case of AC of two or more phases, a plurality of current values are measured as instantaneous values from a plurality of power lines. In this case, it is preferable to display the measured instantaneous values simultaneously.

  Therefore, in the measurement apparatus according to this aspect, it is preferable that one integrated value is displayed in the first display area, and a plurality of instantaneous values are displayed in the second display area. In this case, user convenience is further improved.

  In the measurement apparatus according to this aspect, the measurement value displayed in the first display area and the measurement value displayed in the second display area may have different character sizes or different character colors. May be. In this case, the user can easily recognize the difference between the first display area and the second display area. The characters include numbers, English letters, symbols, Chinese characters, and the like.

  In the measurement apparatus according to this aspect, an operation specifying unit that specifies which switch button is operated, an area specifying unit that specifies a display area corresponding to the switch button specified by the operation specifying unit, and the operation specifying unit The measurement value acquisition unit that acquires the measurement value of the measurement item corresponding to the switching button specified by the display unit, and the display of the measurement value acquired by the measurement value acquisition unit in the display area specified by the region specification unit And a display control unit that controls the display unit so as to switch to In this case, the display of the measurement value in the display area corresponding to the switch button operated by the user can be switched to the display of the measurement value of the measurement item corresponding to the switch button.

  The measurement apparatus according to this aspect may be a measurement apparatus that measures electric power, electric energy, and other plural electrical variables by detecting current and voltage from a power line.

  The measurement device according to this aspect may be realized by a computer, and in this case, a control program for the measurement device that causes the measurement device to be realized by the computer by operating the computer as each unit included in the measurement device, and The computer-readable recording medium on which it is recorded also falls under the category of another aspect of the present invention.

  According to another aspect of the present invention, there is provided a control method for a measurement apparatus comprising: a measurement unit that measures a certain amount and acquires a plurality of measurement values; and a display unit that displays the plurality of measurement values. In order to solve the above-described problem, the control method includes a first switching button provided in the measurement device for switching the measurement value displayed in the first display area of the display unit, and the display Operation specification that specifies which one of the second switching buttons provided in the measurement device is operated to switch the measurement value displayed in the second display area different from the first display area of the unit Measuring a step, an area specifying step for specifying a display area corresponding to the switching button specified in the operation specifying step, and a measurement value of a measurement item corresponding to the switching button specified in the operation specifying step Value acquisition step And a display control step for controlling the display unit so as to switch the display of the measurement value in the display region specified in the region specification step to the display of the measurement value acquired in the measurement value acquisition step. It is characterized by including.

  By the above method, the display of the measurement value in the display area corresponding to the switch button operated by the user can be switched to the display of the measurement value of the measurement item corresponding to the switch button.

  According to one aspect of the present invention, since the measurement value displayed in the first display area and the measurement value displayed in the second display area can be individually switched, the user can select the first and second values. It is possible to switch the measured value displayed on the other while maintaining the measured value displayed on one of the display areas of the display area. As a result, the convenience of the user can be improved.

It is a front view which shows the external appearance of the measuring device which is one Embodiment of this invention. It is a figure which shows the specific example of the switching display of the measured value in the said measuring device. It is a block diagram which shows schematic structure of the said measuring device. It is a block diagram which shows schematic structure of the main control part and memory | storage part in the said measuring device. It is a flowchart which shows the flow of the process in the said main-control part.

  Hereinafter, embodiments of the present invention will be described in detail.

(Outline of measuring device)
FIG. 1 is a front view showing the appearance of the measuring apparatus according to the present embodiment. Therefore, the right side in FIG. 1 is the left side of the measuring device 10, and the left side in FIG. 1 is the right side of the measuring device 10. The measuring device 10 detects a current (alternating current) flowing through a power line in equipment such as a home or a factory, and a voltage (alternating voltage) applied to the power line, respectively, and based on the detected current and voltage, It measures various electrical variables in the power line. In the present embodiment, the measurement device 10 can measure a maximum of four power lines.

  In addition, although the measuring apparatus 10 is normally provided in the inside of a distribution board (not shown) with the said power line and the breaker (not shown) for interrupting | blocking this power line, it is not limited to this Absent. Moreover, since the method for detecting the current flowing through the power line and the method for detecting the voltage applied to the power line are well known, the description thereof is omitted.

The electrical variable includes an instantaneous value indicating the electrical variable per unit time, and
And an integrated value indicating a cumulative value of the electrical variable. The instantaneous value of the electrical variable includes various values such as current, voltage, frequency, power factor, active power of each phase and their sum, reactive power of each phase and their sum. The integrated value of the electrical variable includes various values such as integrated active power, integrated regenerative power, integrated total reactive power, integrated advance reactive power, integrated delay reactive power, and the like. Note that the measuring apparatus 10 may calculate statistical values such as a maximum value, a minimum value, an average value, and an intermediate value related to the electrical variable. Moreover, the measuring device 10 may convert the measured electric energy into a conversion value such as an electricity bill or CO ₂ . Hereinafter, the electrical variables, the statistical values, and the converted values obtained by the measuring device 10 are collectively referred to as “measured values”.

  As shown in FIG. 1, a display unit 11 and a plurality (five in the illustrated example) of operation buttons 12 are provided on the front surface of the measuring device 10.

  The display unit 11 displays the measurement value of the electrical variable and other information. The display unit 11 includes a display element such as a segment type LCD (Liquid Crystal Display) or a dot matrix type LCD. In the example of FIG. 1, a segment type LCD is used.

  In the present embodiment, the display unit 11 is divided into three display areas 110 to 112. The first display area 110 is an area below the display unit 11 and can display one measurement value of the first group. In the first display area 110, the measurement value is displayed at the center and the unit is displayed at the left side. On the right side, information indicating whether or not reset is possible (RESETTABLE), information indicating positive and negative, and information indicating total integrated reactive power (Total Q) are displayed.

  The second display area 111 is an area from the center portion to the left side portion of the display section 11, and is an area capable of displaying a maximum of three measurement values of the second group. In the second display area 111, the measured value is displayed at the center and the unit is displayed at the left side. Further, on the right side, measurement items are displayed by, for example, one alphabetic character.

  The third display area 112 is an area on the right side of the display unit 11 and is an area where information indicating the operation state of the measurement apparatus 10 can be displayed. In the example of FIG. 1, address information 1120, CT information 1121, tariff information 1122, communication status information 1123, and output status information 1124 can be displayed in the third display area 112. Note that the number and arrangement of the display areas can be arbitrarily set.

  The address information 1120 indicates an AC address to be displayed. This address is assigned for each AC to be measured. For example, in the case of a three-phase four-wire AC, one AC can be measured, so only one address is assigned. In the case of a single-phase three-wire type or a three-phase three-wire type AC, two ACs can be measured, and therefore a maximum of two addresses are assigned. In the case of single-phase, two-wire AC, four AC addresses can be measured, so a maximum of four addresses are assigned.

  The CT information 1121 indicates the ID (identification information) (CT1 to CT4) of the port to which the current detected for measurement is input for the alternating current to be displayed. For example, in the case of a three-phase four-wire AC, three currents are measured, so the IDs of any three ports are displayed. In the case of single-phase three-wire or three-phase three-wire AC, two currents are measured, so the IDs of any two ports are displayed. And in the case of single-phase two-wire AC, one current is measured, so the ID of any one port is displayed.

  The tariff information 1122 indicates the address (T1 to T4) of the storage area that stores the integrated value of power for the alternating current to be displayed. In general, the charge per unit power amount varies depending on various conditions such as the time zone in which the power is used and the amount of power used. Therefore, the address of the storage area corresponding to the above condition is displayed, and the integrated value of power is updated in the storage area. The condition and the address of the storage area are set by the host device 90 (see FIG. 3).

  The communication status information 1123 indicates whether or not the communication with the higher-level device 90 is in progress. The output state information 1124 indicates from which of the four external output ports 27 (see FIG. 3) the measurement value is output as a pulse.

  In the present embodiment, as the measurement value of the first group, the measurement value of the integrated value is switched and displayed. In addition, the measurement value of the second group is displayed by switching the measurement value of the instantaneous value.

  The operation button 12 is a button switch for a user to input an operation. In the present embodiment, the MODE button 120 for switching the circuit to be displayed, and the M1 button 121 (second switching button) for switching and displaying the measurement value of the first subgroup among the measurement values of the second group. The M2 button 122 (fourth switching button) for switching and displaying the measurement values of the second sub group among the measurement values of the second group, and the first sub of the measurement values of the first group. An E1 button 123 (first switching button) for switching and displaying the measurement values of the group, and an E2 button 124 for switching and displaying the measurement values of the second subgroup among the measurement values of the first group. (Third switching button) is provided.

  The measurement value of the first subgroup of the first group is the measurement value of the integrated value described above, and the integrated value that cannot be reset, that is, the measurement device 10 is installed on the switchboard or the like and starts measurement. It is a measured value of the integrated value from now to the present. The measurement value of the second sub-group of the first group is the above-described measurement value of the integrated value, and the reset value of the integrated value that can be reset. This integrated value may be reset in units of one month, for example, or may be reset by the user.

  The measurement value of the first subgroup of the second group is the measurement value of the instantaneous value described above, and is a measurement value other than power, that is, a measurement value of current, voltage, frequency, and power factor. The measurement value of the second subgroup of the second group is the measurement value of the instantaneous value described above, and is a measurement value related to power, that is, the active power of each phase and the sum thereof, and the reactive power of each phase. And the total of those measurements.

  FIG. 2 is a diagram illustrating a specific example of the measurement value switching display in the measurement apparatus 10. In the example of FIG. 2, a three-phase four-wire AC is measured. In this case, the measuring apparatus 10 detects the current of three (R line, S line, T line) out of four power lines (R line, S line, T line, N line), and thereby the AC Since one can be measured, there is one circuit for measurement. Therefore, the address information 1120 is fixed by the display of “01”, and the CT information 1121 is fixed by the displays of “CT1” to “CT3”.

  FIG. 2A shows a case where the user presses the M1 button 121. In this case, the display of the second display area 111 is switched to display of measured values of each current of the R line, the S line, and the T line (upper part of FIG. 2A). Further, every time the user presses the M1 button 121, the display in the second display area 111 displays the measured values of the voltages of the R line, the S line, and the T line with respect to the N line (in FIG. 2A). (Middle stage), display of the measurement value of the AC frequency, and display of the measurement value of the AC power factor (lower stage of FIG. 2A). Then, when the user presses the M1 button 121, the display of the second display area 111 is switched to the display shown in the upper part of FIG. 2A, and each time the user presses the M1 button 121, the second display area 111 is displayed. The display in the display area 111 is switched by the toggle method as described above.

  FIG. 2B shows a case where the user presses the M2 button 122. In this case, the display of the second display area 111 is switched to display of the measured values of the active powers of the R line, the S line, and the T line (upper part of FIG. 2B). Further, every time the user presses the M2 button 122, the display in the second display area 111 is displayed as a display of the total measured value of each of the active powers (middle stage in FIG. 2B), R line, S line, And the display of the measured value of each reactive power on the T-line and the display of the total measured value of each reactive power (lower part of FIG. 2B). Then, when the user presses the M2 button 122, the display of the second display area 111 is switched to the display shown in the upper part of FIG. 2B, and each time the user presses the M2 button 122, the second display area 111 is displayed. The display in the display area 111 is switched by the toggle method as described above.

  FIG. 2C shows a case where the user presses the E1 button 123. In this case, the display of the first display area 110 is switched to the display of the measurement value of the AC integrated active energy (upper part of FIG. 2C). Further, every time the user presses the E1 button 123, the display of the first display area 110 is the display of the measurement value of the AC integrated regenerative electric energy (middle stage of FIG. 2C), and the AC integrated total. The display switches to the display of the measured value of reactive energy, the display of the measured value of AC accumulative advance reactive energy, and the display of the measured value of AC accumulative delayed reactive energy (lower part of FIG. 2C). . Then, when the user presses the E1 button 123, the display of the first display area 110 is switched to the display shown in the upper part of FIG. 2C, and thereafter, every time the user presses the E1 button 123, the first display area 110 is displayed. The display in the display area 110 is switched by the toggle method as described above.

  FIG. 2D shows a case where the user presses the E2 button 124. In this case, the display of the first display area 110 is switched to the display of the measured value of the accumulative active energy that can be reset by the AC (upper part of FIG. 2D). Further, each time the user presses the E2 button 124, the display of the first display area 110 is a display of the measured value of the integrated regenerative electric energy that can be reset with the AC (middle stage of FIG. 2D), and the AC. Display of the measured value of integrated total reactive power that can be reset, display of measured value of cumulative advance reactive power that can be reset for AC, and display of measured value of cumulative delay and reactive power that can be reset for AC Switch to Accordingly, the display shown in the upper and middle stages of FIG. 2D has “RESETTABLE” added to the first display area 110 as compared to the display shown in the upper and middle stages of FIG.

  Then, when the user presses the E2 button 124, the display of the first display area 110 is switched to the converted value (the lower part of (d) in FIG. 2). The converted value is, for example, a value obtained by multiplying the integrated power amount by a coefficient set by the user. Then, when the user presses the E2 button 124, the display of the first display area 110 is switched to the display shown in the upper part of FIG. 2D, and thereafter, every time the user presses the E2 button 124, the first display area 110 is displayed. The display in the display area 110 is switched by the toggle method as described above.

  Therefore, the measured value of the first group displayed in the first display area 110 and the measured value of the second group displayed in the second display area 111 can be individually switched. Accordingly, the user can switch the measurement value displayed on the other while maintaining the measurement value displayed on one of the first and second display areas 110 and 111. Therefore, the possibility that the user can simultaneously display a plurality of measurement values that the user wants to check at the same time is higher than in the past, and as a result, the convenience for the user can be improved.

  The first display area 110 displays one integrated value, while the second display area 111 displays a plurality of instantaneous values, so that the user can maintain the display of the integrated value in the measuring device 10. The display of the plurality of instantaneous values can be switched while the display of the plurality of instantaneous values is maintained, and the display of the integrated value can be switched while maintaining the display of the plurality of instantaneous values. As a result, user convenience is further improved.

  In addition, since the measurement value can be switched using the two operation buttons 12, the measurement value of the measurement item desired by the user can be displayed in the first display area as compared with the case where the measurement value is switched using one operation button. The number of times that the user operates the E1 button 123 or the E2 button 124 before the display on 110 is reduced, and the measurement value can be displayed quickly.

  Similarly, since the measurement values can be switched using the two operation buttons 12, the measurement value of the measurement item desired by the user is displayed on the second display as compared with the case where the measurement values are switched using one operation button. The number of times that the user operates the M1 button 121 or the M2 button 122 before the display in the area 111 is small, and the measurement value can be displayed quickly.

  In FIG. 1, the number (character) displayed in the first display area 110 is larger than the number displayed in the second display area 111. As described above, it is desirable that the number size displayed in the first display area 110 is different from the number size displayed in the second display area 111. Similarly, the color of the number displayed in the first display area 110 may be different from the color of the number displayed in the second display area 111. Thereby, the user can easily recognize the difference between the first display area 110 and the second display area 111.

(Details of measuring device)
FIG. 3 is a block diagram illustrating a schematic configuration of the measurement apparatus 10. As shown in FIG. 3, the measuring apparatus 10 includes a power supply circuit 20, an oscillator 21, a control unit 22, a storage unit 23, a plurality (four in the illustrated example) of current measurement circuits 24, and a plurality (in the illustrated example, 4) a voltage measurement circuit 25, an operation unit 26, the above-described display unit 11, an external output port 27, and a communication unit 28.

  The power supply circuit 20 is a power supply for driving each unit of the measurement apparatus 10. Specifically, the power supply circuit 20 converts an AC voltage input from an external AC power source into a DC voltage corresponding to the operation of each unit of the measuring device 10 and outputs the DC voltage to each unit of the measuring device 10.

  The oscillator 21 is a clock source for the control unit 22. Examples of the oscillator 21 include a ceramic oscillator and a crystal oscillator.

  The control unit 22 controls the operation of various components in the measurement apparatus 10 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 23 records information and includes a recording device such as a hard disk or a flash memory. Details of the control unit 22 and the storage unit 23 will be described later.

  The current measurement circuit 24 converts a current input from an external current transformer or the like into a voltage that can be measured by the control unit 22 and outputs the voltage to the control unit 22. The current measurement circuit 24 may be a known current / voltage conversion circuit (for example, an I / V amplifier circuit) realized using an operational amplifier.

  The voltage measuring circuit 25 converts an externally input voltage into a voltage that can be measured by the control unit 22 and outputs the voltage to the control unit 22. The voltage measurement circuit 25 may be realized by a known voltage detection IC (Integrated Circuit).

  The operation unit 26 receives various inputs from the user through user operations, and includes the above-described operation buttons 12, dip switches, other operation devices, and the like. The operation unit 26 converts information operated by the user into operation data and transmits the operation data to the control unit 22.

  The external output port 27 is for outputting a measured value of an electrical variable (for example, integrated power amount) measured by the control unit 22 to an external device (not shown).

  The communication unit 28 is for performing data communication with an external host device 90. The communication unit 28 converts various data received from the control unit 22 into a format suitable for data communication, and then transmits the converted data to the host device 90. The communication unit 28 converts various data received from the host device 90 into a data format inside the apparatus, and then transmits the data to the control unit 22. Thereby, according to the request | requirement from the high-order apparatus 90, the data of the various electrical variables which the control part 22 measured can be transmitted to the high-order apparatus 90.

  Next, details of the control unit 22 and the storage unit 23 will be described. As shown in FIG. 3, the control unit 22 includes a main control unit 30, a measurement unit 31, an output control unit 32, and a communication control unit 33.

  The main control unit 30 comprehensively controls various blocks in the control unit 22. Details of the main control unit 30 will be described later.

  The measurement unit 31 measures various electrical variables in the power line by performing arithmetic processing using the voltage from the current measurement circuit 24 and the voltage from the voltage measurement circuit 25. The measuring unit 31 stores measurement data including the measured value of the measured electrical variable and the measured date and time in the storage unit 23.

  The output control unit 32 controls the external output port 27. The communication control unit 33 controls the communication unit 28.

  FIG. 4 is a block diagram illustrating a schematic configuration of the main control unit 30 and the storage unit 23. As shown in FIG. 4, the main control unit 30 includes an operation receiving unit 40 (operation specifying unit), an update region specifying unit 41 (region specifying unit), a measurement value acquiring unit 42, and a display control unit 43. . The storage unit 23 includes a measurement data storage unit 50 and an item storage unit 51.

  The measurement data storage unit 50 stores the above-described measurement data. The item storage unit 51 stores an operation button and a measurement item whose display is switched when the operation button is pressed in association with each other.

  For example, in the item storage unit 51, the M1 button 121 is associated with the measurement items (current, voltage, frequency, and power factor) of the first subgroup of the second group. Further, the M2 button 122 is associated with the measurement items of the second subgroup of the second group (the active power of each phase and the sum thereof, and the reactive power of each phase and the sum thereof). . In addition, the E1 button 123 and the measurement items of the first subgroup of the first group (unresettable, integrated active power, integrated regenerative power, integrated total reactive power, integrated advance reactive power, and integrated delay) Reactive power). In addition, the E2 button 124 and the measurement items of the second subgroup of the first group (resettable integrated active power amount, integrated regenerative power amount, integrated total reactive power amount, integrated advance reactive power amount, and integrated delay) Reactive power and conversion value) are associated with each other.

  The operation accepting unit 40 accepts an operation from the user via the operation unit 26. In the present embodiment, the operation reception unit 40 specifies which of the operation buttons 12 on the operation unit 26 has been pressed. The operation receiving unit 40 sends the information of the specified operation button 12 to the update region specifying unit 41 and the measurement value acquiring unit 42.

  The update area specifying unit 41 specifies which of the display areas 110 to 112 is to be updated based on information on the operation buttons 12 from the operation receiving unit 40. Specifically, when the information on the E1 button 123 or the E2 button 124 is acquired from the operation receiving unit 40, the update area specifying unit 41 determines to update the first display area 110. In addition, when the information on the M1 button 121 or the M2 button 122 is acquired from the operation receiving unit 40, the update area specifying unit 41 determines to update the second display area 111. The update area specifying unit 41 sends information on the specified display area to the display control unit 43.

  The measurement value acquisition unit 42 refers to the item storage unit 51, acquires the measurement items of the subgroup associated with the operation button 12 from the operation reception unit 40, and stores the measurement values of the acquired measurement items as measurement data. This is acquired from the unit 50. Specifically, the measured value acquisition unit 42 determines whether or not the current operation button 12 from the operation reception unit 40 is different from the previous operation button 12, and if different, associates with the current operation button 12. Acquire the first measurement item of the subgroup, and acquire the measurement value of the acquired total billion items. On the other hand, when it is the same, the measurement value acquisition part 42 acquires the measurement item next to the measurement item acquired last time, and acquires the measurement value of the acquired measurement item. The measurement value acquisition unit 42 sends the acquired measurement value to the display control unit 43.

  The display control unit 43 controls the display unit 11. In the present embodiment, the display control unit 43 instructs the display unit 11 to switch the display area display from the update area specifying unit 41 to the measurement value display from the measurement value acquisition unit 42.

(Processing of the main control unit)
FIG. 5 is a flowchart showing the flow of processing in the main control unit 30. As shown in FIG. 5, the operation reception unit 40 stands by until the operation button 12 is pressed (S10). When the operation button 12 is pressed, the operation reception unit 40 specifies which operation button 12 is pressed, and the update region specifying unit 41 selects the operation button 12 among the display regions 110 to 112 of the display unit 11. A display area corresponding to is specified (S11, operation specifying step, area specifying step).

  On the other hand, the measurement value acquisition unit 42 determines whether or not the operation button 12 pressed this time is different from the operation button 12 pressed last time (S12). If they are different, the measurement value acquisition unit 42 acquires the first measurement item of the subgroup corresponding to the operation button 12 pressed this time from the item storage unit 51 (S13, measurement value acquisition step), and is the same. In this case, the measurement value acquisition unit 42 acquires the measurement item next to the previously acquired measurement item from the item storage unit 51 (S14, measurement value acquisition step).

  Next, the measurement value acquisition unit 42 acquires the measurement value of the acquired measurement item from the measurement data storage unit 50 (S15, measurement value acquisition step). Then, the display control unit 43 instructs the display unit 11 to switch the display of the display area specified by the update area specifying unit 41 to the display of the measurement value acquired by the measurement value acquisition unit 42 (S16, display control). Step). Then, it returns to step S10 and repeats the said operation | movement.

  Thereby, the display of the measurement value in the display areas 110 and 111 corresponding to the operation button 12 operated by the user can be switched to the display of the measurement value of the measurement item corresponding to the operation button 12.

(Additional notes)
In the above embodiment, a measurement device that measures an electrical variable is described. However, the measurement device is not limited to this. For example, a measurement device that measures a magnetic variable, a flow meter that measures a flow rate, and a human activity The present invention can be applied to a measuring device that measures an arbitrary amount, such as an activity meter that measures the amount.

  In the above embodiment, the measurement values are individually switched and displayed in the two display areas 110 and 111, but the measurement values may be switched and displayed individually in three or more display areas. In this case, one or two operation buttons may be provided for each display area.

[Example of software implementation]
The control block (especially the control unit 22) of the measuring device 10 may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like, or by software using a CPU (Central Processing Unit). It may be realized.

  In the latter case, the measurement apparatus 10 includes a CPU that executes instructions of a program that is software that implements each function, a ROM (Read Only Memory) in which the above-described program and various data are recorded so as to be readable by a computer (or CPU), or A storage device (these are referred to as “recording media”), a RAM (Random Access Memory) that expands the program, and the like are provided. 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. As the recording medium, 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. 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 present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Measuring apparatus 11 Display part 12 Operation button 22 Control part 23 Storage part 24 Current measurement circuit 25 Voltage measurement circuit 26 Operation part 30 Main control part 31 Measurement part 40 Operation reception part (operation specific part)
41 Update area specifying part (area specifying part)
42 Measurement Value Acquisition Unit 43 Display Control Unit 50 Measurement Data Storage Unit 51 Item Storage Unit 110 First Display Area 111 Second Display Area 112 Third Display Area 120 MODE Button 121 M1 Button (Second Switch Button)
122 M2 button (fourth switching button)
123 E1 button (first switch button)
124 E2 button (third switch button)

Claims (11)

A measurement device comprising a measurement unit that measures a certain amount and acquires a plurality of measurement values, and a display unit that displays the plurality of measurement values,
A first switching button for switching the measurement value displayed in the first display area of the display unit;
A measurement apparatus comprising: a second switching button for switching the measurement value displayed in a second display area different from the first display area of the display unit. The first switching button is for switching the measurement value displayed in the first display area to any one of a plurality of measurement items included in the first subgroup of the first group. ,
The measurement value displayed in the first display area is a measurement value of any one of a plurality of measurement items included in a second subgroup which is a subgroup of the first group and is different from the first subgroup. The measuring device according to claim 1, further comprising a third switching button for switching to the first. The second switching button is for switching the measurement value displayed in the second display area to any one of a plurality of measurement items included in the first subgroup of the second group. ,
The measurement value displayed in the second display area is a measurement value of any one of a plurality of measurement items included in a second subgroup that is a subgroup of the second group and is different from the first subgroup. The measurement apparatus according to claim 2, further comprising a fourth switching button for switching to the first position.   The measured value displayed in the first display area is an integrated value indicating the accumulated value of the quantity, and the measured value displayed in the second display area is an instantaneous value indicating the quantity per unit time. The measuring apparatus according to any one of claims 1 to 3, wherein   The measuring apparatus according to claim 4, wherein one integrated value is displayed in a first display area, and a plurality of the instantaneous values are displayed in a second display area.   The measured value displayed in the first display area and the measured value displayed in the second display area are different in character size. 6. Measuring device.   The measured value displayed in the first display area and the measured value displayed in the second display area are different in character color. Measuring device. An operation specifying unit for specifying which switch button is operated;
An area specifying unit for specifying a display area corresponding to the switching button specified by the operation specifying unit;
A measurement value acquisition unit for acquiring a measurement value of a measurement item corresponding to the switching button specified by the operation specifying unit;
A display control unit for controlling the display unit so as to switch the display of the measurement value in the display region specified by the region specifying unit to the display of the measurement value acquired by the measurement value acquisition unit; The measuring device according to any one of claims 1 to 7.   9. The measurement device according to claim 1, wherein the measurement device measures electric power, electric energy, and a plurality of other electrical variables by detecting current and voltage from a power line. The measuring device described in 1.   A control program for causing a computer to function as the measurement device according to claim 8, wherein the operation specifying unit, the region specifying unit, the measurement value acquiring unit, and the display control unit are for causing the computer to function. Control program. A measuring device control method comprising a measurement unit that measures a certain amount and acquires a plurality of measurement values, and a display unit that displays the plurality of measurement values,
A first switching button provided in the measurement device for switching the measurement value displayed in the first display area of the display unit, and a second display different from the first display area of the display unit An operation specifying step for specifying which one of the second switching buttons provided in the measurement device is operated to switch the measurement value displayed in the area;
An area specifying step for specifying a display area corresponding to the switching button specified in the operation specifying step;
A measurement value acquisition step of acquiring a measurement value of a measurement item corresponding to the switching button specified in the operation specifying step;
A display control step of controlling the display unit so as to switch the display of the measurement value in the display region specified in the region specification step to the display of the measurement value acquired in the measurement value acquisition step. A control method for a measuring device.

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