JP7184575B2 - Support equipment, inspection systems and programs for support processing - Google Patents

Description

TECHNICAL FIELD The present invention relates to a support device capable of supporting an operation of identifying an electric leakage occurrence location in an object to be inspected, an inspection system provided with such a support device, and a support processing program that causes a processing unit of the support device to execute support processing. be.

The following patent document discloses a device for a clamp-type wireless earth leakage current meter (hereinafter also simply referred to as "ammeter") configured to be able to measure and report an earth leakage current. This ammeter consists of a clamp-type current detection core (hereinafter also referred to as a "clamp sensor") capable of clamping an electric wire, and a measurement unit (conversion unit that performs A/D conversion processing on the detection signal) connected to the clamp sensor. and In addition, this ammeter can be used for leakage inspection of various objects (electrical circuits) installed in different buildings (factories), and for objects whose measured values are difficult to read (objects installed in dark places, etc.). ) is adopted in consideration of leakage inspection etc.

Specifically, in this ammeter, the signal level of the output signal from the measuring section is lower than the signal level of the output signal from the level setting section (normal state in which no leakage occurs), It is determined whether the signal level of the output signal from the level setting unit is higher than the signal level of the output signal from the level setting unit (abnormal state in which electric leakage occurs), and the determination result can be specified. is transmitted from the transmission radio unit to the existing transceiver. As a result, during earth leakage inspection using this ammeter, while the worker who monitors the received signal of the transceiver is placed in an arbitrary work place, other workers can monitor various objects installed in different buildings. By sequentially performing the measurement work with an ammeter for (electrical circuit), it is possible to have the operator monitoring the transceiver identify whether or not there is an electric leakage in each object. .

Registered utility model publication No. 3056368 (pages 5-11, Figures 1-3)

However, the ammeter disclosed in the above patent document has the following problems to be solved. Specifically, in the ammeter disclosed in the above-mentioned patent document, the presence or absence of electric leakage is determined based on the signal measured while the object is clamped, and the signal indicating the determination result is transmitted from the transmission radio unit. is transmitted to the transceiver.

On the other hand, some objects (electrical circuits) to be inspected by this type of apparatus have electric wires embedded inside walls, ceilings, floors, and the like. However, with the ammeter disclosed in the above-mentioned patent document, even if an attempt is made to conduct an earth leakage inspection for such an electric circuit, the buried electric wire cannot be clamped by the clamp sensor, so the electric leakage current cannot be measured. can't Moreover, even if the electric wire is not buried, it may not be possible to clamp the electric wire to be measured due to the presence of other electric wires, circuit components, and the like.

On the other hand, as an insulation test for electric circuits where it is difficult to clamp the electric wire with the clamp sensor, the insulation resistance value of the electric wire is measured using an insulation resistance meter, etc. (whether or not the state of insulation is obtained) can be specified. However, when measuring the insulation resistance value, it is necessary to cut off the target electric circuit on the upstream side to stop the power supply. For this reason, when working with factory equipment, etc., we do not want to conduct insulation inspections by measuring insulation resistance values, in other words, inspections that require power supply to be stopped. For circuits where clamping is possible, leakage current is measured using a clamp-type ammeter, etc., and there is a current situation where it is desired to measure insulation resistance values using an insulation resistance meter, etc., only for circuits where clamping is difficult. .

Therefore, if there is an electric path that is difficult to clamp by the clamp sensor among the electric paths to be inspected, the leakage current value and the insulation resistance value are mixed in the measurement results for each electric path. For this reason, especially for those who are unfamiliar with ground leakage inspection, it is difficult to determine the presence or absence of ground leakage based on various measurement results of different types. is difficult to identify.

The present invention has been made in view of such problems to be solved. The main purpose is to provide a support device, an inspection system, and a program for support processing that enable identification of.

In order to achieve the above object, a support device according to claim 1 provides a support for assisting an operation of identifying an electric leakage occurrence location in an object to be inspected based on measured values of the object to be inspected, which are measured by a measuring device equipped with a clamp sensor. A support device comprising a processing unit for executing processing, the support device comprising a measured value data receiving unit, the processing unit having a main electric line and a plurality of branch electric lines branched from the main electric line, and at least one of the branches In the support processing for the test object for which the leakage current value cannot be measured by the measuring device due to difficulty in clamping the electric circuit by the clamp sensor, the leakage current value for the main electric circuit is recorded. 1 measured value data, second measured value data in which a voltage value is recorded for any one of the main electric circuit and the plurality of branch electric circuits, and an insulation resistance value for the at least one branch electric circuit is recorded. and the fourth measurement value data recording the leakage current values for the branch circuits excluding the at least one branch circuit, the first measurement value data and the fourth measurement value data The measured value data receiving unit receives the measured value data from a first measuring device equipped with the clamp sensor as the measuring device, and transmits the second measured value data and the third measured value data to the The measured value data receiving unit is caused to receive from the second measuring device as the measuring device, and the first measured value data, the second measured value data, and the third measured value data received by the measured value data receiving unit a measured value acquisition process for acquiring the measured value data and the value of the fourth measured value data as the measured value; measurement value calculation processing for calculating a leakage current value for the at least one branch electric circuit based on the leakage current value for the main electric circuit and the leakage current value for each branch electric circuit based on the main electric circuit and each branch It is configured to be able to execute an occurrence location specifying process of specifying in which of the electrical paths an electric leakage has occurred, and an occurrence location reporting process of notifying the location of the leakage so as to be identifiable.

Further, the support device according to claim 2 is the support device according to claim 1, wherein the processing unit is configured such that when the leakage current value for the main electric circuit acquired in the measurement value acquisition process is below a predetermined value, When there is no electric leakage occurrence point in the inspection object, it is notified in a identifiable manner, and the support processing is terminated.

Further, the inspection system according to claim 3 comprises the support apparatus according to claim 1 or 2 , the first measurement value data and the second measurement value data generated by executing measurement processing on the inspection object. , the first measuring device and the second measuring device as the measuring devices for transmitting the third measured value data and the fourth measured value data to the support device.

Further, the support processing program according to claim 4 supports support processing for assisting the work of identifying the location of the electric leakage occurrence in the inspection object based on the measured value of the inspection object measured by the measuring device provided with the clamp sensor. A support processing program to be executed by a processing unit of an apparatus, which has a main electric circuit and a plurality of branch electric circuits branched from the main electric circuit, and at least one of the branch electric circuits is difficult to clamp by the clamp sensor. In the support processing for the inspection object for which the leakage current value cannot be measured by the measuring device, the first measured value data in which the leakage current value for the main electric circuit is recorded, the main electric circuit and the plurality of second measurement data recording a voltage value for any one of the branch circuits, third measurement data recording an insulation resistance value for the at least one branch circuit, and the at least one branch circuit measurement value data reception of the first measurement value data and the fourth measurement value data among the fourth measurement value data in which the leakage current values for the branch electric circuits other than the one branch electric circuit are recorded; receiving from a first measuring device having the clamp sensor as the measuring device, and sending the second measured value data and the third measured value data to the measured value data receiving portion as the measuring device The first measured value data, the second measured value data, the third measured value data, and the fourth measurement received by the measured value data receiving unit from the second measuring device of a measured value acquisition process for acquiring the values of the value data as the measured values; A measurement value calculation process for calculating a leakage current value, and in which of the main electric circuit and each of the branch electric circuits the electric leakage has occurred based on the leakage current value of the main electric circuit and the leakage current value of each of the branch electric circuits. and an occurrence point notification process for notifying the location where the electric leakage is occurring in a identifiable manner.

In the support device according to claim 1, in the support processing for supporting the work of specifying the leakage occurrence location for the inspection target for which the processing unit cannot measure the leakage current value for at least one branch electric circuit, leakage current value, voltage value for any one of the trunk circuit and each branch circuit, insulation resistance value for at least one branch circuit, and leakage current value for branch circuits excluding at least one branch circuit Measurement value acquisition processing for acquiring each as a measurement value, and measurement for calculating a leakage current value for at least one branch circuit based on the voltage value for any one of the above and the insulation resistance value for at least one branch circuit value calculation processing; occurrence point identification processing for identifying in which of the main electric circuit and each branch electric circuit the electric leakage has occurred based on the leakage current value for the electric trunk circuit and the leakage current value for each branch electric circuit; It is configured to be able to execute an occurrence location notification process for notifying the occurrence location in a identifiable manner. Also, first measured value data recording a leakage current value for the main electric circuit, second measured value data recording a voltage value for any one of the above, insulation resistance for at least one branch electric circuit a measured value data receiving unit capable of receiving third measured value data in which values are recorded and fourth measured value data in which leakage current values for branch circuits other than at least one branch circuit are recorded; In the measured value acquisition process, the unit converts the values of the first measured value data, the second measured value data, the third measured value data, and the fourth measured value data received by the measured value data receiving unit into measured values to get as Further, in the inspection system according to claim 3, the support device described above performs the measurement process on the inspection target to obtain the first measurement value data, the second measurement value data, the third measurement value data and the fourth measurement value data. and a first measuring device and a second measuring device for generating measured value data and transmitting the measured value data to the support device. Further, in the support processing program according to claim 4 , each of the above processes is executed by the processing unit of the support device.

Therefore, according to the support device of claim 1, the inspection system of claim 3 having such a support device, and the support processing program of claim 4 , the leakage current value cannot be measured. For an inspection target that has a branch electric circuit, the insulation resistance value of the branch electric circuit is measured by a measuring device (second measuring device) capable of measuring the insulation resistance value, so that any one of the above Since the leakage current value that can be measured in an energized state is calculated based on the voltage value and the insulation resistance value of the branch circuit, it is possible to This eliminates the need to specify the location where the electric leakage occurs, and makes it possible to easily specify whether or not an electric leakage has occurred in the inspection object and to what extent the electric leakage has occurred. As a result, even an operator unfamiliar with earth leakage inspection can reliably and easily identify whether or not an earth leakage occurs in the object to be inspected and in which electric path the earth leakage is occurring. In addition, unlike the processing mode in which the measurement results of the measuring devices (the first measuring device and the second measuring device) are read and the numeric values are manually input to the support device, the original measured values may be incorrect due to incorrect numeric input. Since a different measured value is not acquired, a circuit with no leakage is identified as the location of leakage, and a circuit with leakage is identified as normal (no leakage). It is possible to suitably avoid such a situation, and to more accurately and easily specify in which electric circuit to what extent the electric leakage has occurred.

In the support device according to claim 2, when the leakage current value for the main electric circuit acquired in the measurement value acquisition process by the processing unit is below a predetermined value, there is no leakage occurrence location in the inspection object. This is identifiably notified and the support processing is terminated. Therefore, according to the support device according to claim 2, the inspection system provided with such a support device, and the support processing program for causing the processing unit to execute such processing, the electric leakage is not generated. It is possible to reliably and easily identify that the device is in a normal state without performing unnecessary measurement processing in an electric leakage test, which is more common.

1 is a configuration diagram showing a configuration of an inspection system 100 (mobile information terminal 1 and measuring devices 2 and 3); FIG.

Embodiments of a support device, an inspection system, and a program for support processing will be described below with reference to the accompanying drawings.

An inspection system 100 shown in FIG. 1 corresponds to an “inspection system” and is configured with a mobile information terminal 1 and measuring devices 2 and 3 as an example.

In the following description, in order to facilitate understanding of the present invention, as an example, a main electric line Lm, branch electric lines Lb1 to Lb3 branched from the main electric line Lm (hereinafter, when not distinguished, "branch electric line Lb" ) is defined as the "inspection object", and the main electric circuit Lm and each branch electric circuit Lb (hereinafter also referred to as the "electric circuit L" when not distinguished) shall be subjected to the leakage inspection. . In this case, connecting/disconnecting switches Sw1 to Sw3 are arranged in the branch lines Lb1 to Lb3, respectively, and loads Lc1 to Lc3 are connected to the branch lines Lb1 to Lb3, respectively. Moreover, the branch electric circuit Lb3 is an example of "a branch electric circuit in which the leakage current value cannot be measured", and the part indicated by the broken line in FIG. It is difficult to clamp by

On the other hand, the portable information terminal 1 corresponds to a "support device", and is configured by, for example, an existing tablet terminal or smart phone in which a support processing program Dp (an example of a "support processing program") 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" means "PDA (personal digital assistant) function. However, in this specification, in the broad sense of "tablet terminal" and in the broad sense of "smartphone", "any function can be added by installing various programs, the operating environment and display of the terminal Things that can customize the environment, etc." are called "tablet terminals" and "smartphones."

In this case, the mobile information terminal 1 in the inspection system 100 of this example is configured by a tablet terminal as an example, and includes a communication unit 11, an operation unit 12, a display unit 13, a processing unit 14, and a storage unit 15. . In addition to the components 11 to 15 described above, the actual mobile information terminal 1 includes various components for realizing the functions of a "tablet terminal". For the sake of clarity, illustration and description of these components are omitted.

The communication unit 11 is an example of a “measured value data receiving unit”, and in the mobile information terminal 1 (inspection system 100) of this example, a wireless communication device conforming to a short-range wireless communication standard such as the Bluetooth (registered trademark) standard. It has a wireless communication module capable of communication, and is configured to be able to transmit and receive various data to and from an external device (Bluetooth compatible device) such as the measuring devices 2 and 3 . Specifically, as will be described later, the communication unit 11 receives the current value data Da transmitted from the measuring device 2, the resistance value data Dr and the voltage value data Dv transmitted from the measuring device 3, and the like, and 14.

The operation unit 12 includes, for example, a touch panel provided on the front side of the display unit 13 and various operation switches for allowing the mobile information terminal 1 to function as a “tablet terminal”, and outputs an operation signal according to the operation. is output to the processing unit 14 . The display unit 13 includes, for example, a liquid crystal display panel, and displays various display screens (not shown) such as a support condition setting screen and an insulation inspection work support screen under the control of the display unit 13 .

The processing unit 14 is an example of a “processing unit” and comprehensively controls the mobile information terminal 1, and performs support processing for supporting the work of identifying the location of the electric leakage occurrence in the inspection target X or the like according to the support processing program Dp. to run.

Specifically, as will be described later, the processing unit 14 determines the state of each electric circuit L for the inspection object X (how many branch electric circuits Lb are branched from the main electric circuit Lm, branches for which leakage current cannot be measured, etc.). ) is specified by the operator, the inspection data D0 is generated based on the specified information and stored in the storage unit 15 . In addition, in the support processing for the inspection object X in which the branch electric circuit Lb3 whose leakage current value cannot be measured exists, the processing unit 14 determines the leakage current value for the main electric circuit Lm, The voltage value for any one of them (as an example, the main electric line Lm), the insulation resistance value for the branch electric line Lb3 (an example of "at least one branch electric line"), and the branch electric lines Lb1 and Lb2 ("at least one Measured value acquisition processing is executed to acquire leakage current values for each of the "branch electric circuits" (an example of "branch electric circuits excluding branch electric circuits") as "measured values".

In this case, in the portable information terminal 1 (supporting processing program Dp) in the inspection system 100 of the present example, as described later, the leakage current value of the main electric circuit Lm is measured, and the current value data transmitted from the measuring device 2 is Da (an example of "first measured value data"), voltage value data Dv ("second measured value data”), the resistance value data Dr (an example of “third measurement data” transmitted from the measuring device 3 in which the insulation resistance value of the branch electric circuit Lb3 is measured, and the leakage of the branch electric circuits Lb1 and Lb2 When the communication unit 11 receives the current value data Da (an example of “fourth measured value data”) transmitted from the measuring device 2 after the current value is measured, the processing unit 14 processes the data Da, The process of acquiring the values of Dv and Dr as "measured values" is executed as the measured value acquisition process.

In addition, when the leakage current value for the main electric circuit Lm (the value of the current value data Da for the main electric circuit Lm) obtained in the measurement value obtaining process is below a predetermined value, the processing unit 14 determines that the inspection object X is identifiably informed that there is no electric leakage occurrence point in , and the support processing is terminated. Furthermore, when the leakage current value for the main electric line Lm is equal to or greater than a predetermined value, the processing unit 14 determines the voltage value for any one of the electric lines L (for example, the voltage value for the main electric line Lm data Dv) and the insulation resistance value of the branch electric circuit Lb3 (value of the resistance value data Dr for the branch electric circuit Lb3).

In addition, the processing unit 14 determines the leakage current value for the main electric line Lm (the value of the current value data Da for the main electric line Lm), the leakage current value for the branch electric lines Lb1 and Lb2 (the current value data for the branch electric lines Lb1 and Lb2). Da) and the leakage current value for the branch circuit Lb3 (leakage current value calculated by the measurement value calculation process). Execute the location identification process. Further, the processing unit 14 executes an occurrence point notification process for identifiably reporting the point identified as the occurrence of the electric leakage in the occurrence point identification process. In addition, the processing unit 14 generates inspection result data D1 based on the inspection result for each electrical circuit L and stores the inspection result data D1 in the storage unit 15 . The specific contents of each of the above processes performed by the processing unit 14 will be described in detail later.

The storage unit 15 is a built-in memory of the portable information terminal 1, stores the support processing program Dp, and also stores the inspection data D0 and the inspection result data D1 generated by the processing unit 14 and the data transmitted from the measuring device 2. current value data Da received by the communication unit 11, voltage value data Dv and resistance value data Dr transmitted from the measuring device 3 and received by the communication unit 11, and the like. A part of the support processing program Dp, the inspection data D0, the current value data Da, the voltage value data Dv, the resistance value data Dr, and the inspection result data D1 are stored in the portable information terminal 1 instead of the storage unit 15. It can also be stored in a removable memory attached to the .

The measuring device 2 is an example of a "first measuring device having a clamp sensor" as a "measuring device", and includes a clamp sensor 2a capable of clamping a conductor to be measured such as an electric wire of an electrical circuit L, It is configured to be able to measure the current value of the current flowing through the conducting wire and generate current value data Da indicating the measurement result. Further, the measuring device 3 is an example of a "second measuring device" as a "measuring device", and includes a pair of test leads 3a connectable to a conductor to be measured such as an electric wire of the electrical circuit L, and a conductor to be measured. The voltage value data Dv is generated by measuring the voltage value of the voltage applied to the test conductor, and the voltage value data Dv is generated by measuring the resistance value between the contact portions of both test leads 3a in the conductor to be measured. configured to be able to

In this case, both measuring devices 2 and 3 are provided with a communication unit configured with a communication adapter capable of wireless communication conforming to short-range wireless communication standards such as Bluetooth, like the communication unit 11 of the portable information terminal 1 described above. (not shown), and is configured to be able to transmit and receive various data to and from an external device (Bluetooth compatible device) such as the portable information terminal 1 described above. Specifically, in the inspection system 100 of this example, the measuring device 2 transmits the current value data Da to the portable information terminal 1, and the measuring device 3 transmits the voltage value data Dv and the resistance data to the portable information terminal 1. It is configured to be able to transmit value data Dr.

Next, the leakage inspection for the inspection target X using the inspection system 100 will be described with reference to the accompanying drawings.

In addition, in the actual inspection system 100, it is possible to perform measurement work using various "measurement devices" other than the measurement devices 2 and 3, and support processing for the measurement work. For this purpose, an inspection system 100 comprising a mobile information terminal 1 and measuring devices 2 and 3 will be described, and an example of conducting an earth leakage inspection using these devices will be described. In addition, it is assumed that the installation of the support processing program Dp on the mobile information terminal 1 and the Bluetooth pairing between the mobile information terminal 1 and the measuring devices 2 and 3 have already been completed. Description is omitted.

First, the support processing program Dp is started in the portable information terminal 1, and the work of setting (pre-registering) the state of each electric circuit L in the inspection object X is performed. Specifically, when conducting the electric leakage inspection for the inspection object X, the operation unit 12 is operated to display the support condition setting screen on the display unit 13 (not shown), and the "main electric line Lm to branch electric line Three electric circuits Lb1 to Lb3 are branched”, “Leakage current cannot be measured for branch electric circuit Lb3”, and “[Main electric circuit and each branch electric circuit Either one] to measure the voltage value for the main electric line Lm" is registered. In addition, it adjusts (registers) the "threshold value of the leakage current value for determining that an electric leakage has occurred" as necessary.

Note that the electric line L whose voltage value is to be measured is not limited to the main electric line Lm, and it is also possible to register to measure the voltage value of any one of the branch electric lines Lb. Further, at the time of the above registration work, as an example, the main electric line Lm is registered as the "main electric line", the branch electric line Lb1 is registered as the "branch electric line 1", the branch electric line Lb2 is registered as the "branch electric line 2", and It is assumed that branch electric line Lb3 is registered as "branch electric line 3". In response to this, the processing unit 14 generates inspection data D0 recording the items registered by the operator according to the support processing program Dp, and stores the generated inspection data D0 in the storage unit 15 . This completes preparations for starting the earth leakage test.

This inspection system 100 is intended for leakage inspection by a plurality of workers, such as a worker who monitors the transceiver and a worker who performs measurement work with an ammeter. Unlike the above, it is possible for one person to carry out the measurement work and the identification work of the leakage occurrence location while referring to the information displayed on the display unit 13 of the portable information terminal 1 as described below.

Specifically, the support processing program Dp is started in the mobile information terminal 1 in a state where the pre-registration work as described above is completed, and an operation button for instructing "start of support processing" is operated. In response to this, the processing unit 14 causes the display unit 13 to display an insulation inspection work support screen (not shown) based on the support processing program Dp and the inspection data D0, and, as an example, displays "About the main electric circuit Please measure the leakage current value." Prompt for input (not shown).

Seeing such a message and the blinking display of the character input cursor, the operator switches all of the connecting/disconnecting switches Sw1 to Sw3 to the ON state (the whole of the leakage inspection target is connected to the main electric line Lm), and , the main electric circuit Lm is clamped by the clamp sensor 2a of the measuring device 2 which has been switched to the leakage current measurement mode, and the measurement process is executed. As a result, the current value data Da capable of specifying the leakage current value of the trunk line Lm measured by the measuring device 2 is transmitted from the measuring device 2 and received by the communication unit 11 of the mobile information terminal 1 .

In addition, in the mobile information terminal 1, the processing unit 14 causes the storage unit 15 to store the current value data Da received by the communication unit 11, and based on the current value data Da, the leakage current measured in the main electric line Lm Specify the value, enter the numerical value in the "leakage current value input column for the main electric line Lm", and display it. Note that, in the inspection system 100 (the mobile information terminal 1 and the support processing program Dp) of the present example, instead of the above-described working method of transmitting and acquiring the current value data Da from the measuring device 2 to the mobile information terminal 1, measurement It is also possible to adopt a work method of numerically inputting the leakage current value measured by the "leakage current measuring device" such as the device 2 into the "leakage current value input field for the main electric circuit Lm" by operating the operation unit 12. .

Next, the processing unit 14 converts the leakage current value specified based on the current value data Da (or the leakage current value numerically input in the input field) to a predetermined value (recorded in the inspection data D0). threshold). At this time, when no leakage occurs in each electric circuit L of the inspection object X and the leakage current value specified based on the above-mentioned current value data Da is below the threshold, the processing unit 14, for example, As a result, the display unit 13 displays a message "There is no electric leakage in the main electric line and its branch electric lines." (an example of processing with ), and the support processing is terminated.

On the other hand, when the leakage current value specified based on the current value data Da is equal to or greater than the threshold value, the processing unit 14 determines that an electric leakage has occurred in any one of the electric circuits L constituting the inspection object X. do. At this time, in this example, in which it is pre-registered that the leakage current value for the branch electric circuit Lb3 cannot be measured, the processing unit 14 outputs, as an example, "Please measure the voltage value for the main electric circuit." message is displayed on the display unit 13, and the input of the voltage value is requested by, for example, blinking the character input cursor in the "input field for the voltage value of the main electric line Lm" in the display screen (not shown ).

The operator who sees such a message or the blinking display of the character input cursor brings the test lead 3a of the measuring device 3 switched to the voltage measurement mode into contact with the main electric line Lm to execute the measurement process. As a result, voltage value data Dv capable of specifying the voltage value of the trunk line Lm measured by the measuring device 3 is transmitted from the measuring device 3 and received by the communication unit 11 of the portable information terminal 1 .

In addition, in the mobile information terminal 1, the processing unit 14 causes the storage unit 15 to store the voltage value data Dv received by the communication unit 11, and based on the voltage value data Dv, the voltage value measured in the trunk electric line Lm is specified, and numerical values are input and displayed in the "voltage value input column for the main electric line Lm". In addition, in the same manner as when the leakage current value for the main electric circuit Lm was obtained, the voltage value measured by the "voltage measuring device" such as the measuring device 3 is measured by operating the operation unit 12 to obtain the "about the main electric circuit Lm It is also possible to adopt a work method in which numerical values are entered in the “input field for the voltage value of ”.

Next, as an example, the processing unit 14 causes the display unit 13 to display a message “Please measure the leakage current value for the branch electric circuit 1.” The input of the leakage current value is requested by, for example, blinking the character input cursor in the value input column (not shown). The worker who sees such a message or the blinking display of the character input cursor clamps the branch electric line Lb1 with the clamp sensor 2a of the measuring device 2 and executes the measurement process. As a result, the current value data Da capable of specifying the leakage current value of the branch electric circuit Lb1 measured by the measuring device 2 is transmitted from the measuring device 2 and received by the communication unit 11 of the mobile information terminal 1 .

In addition, in the mobile information terminal 1, the processing unit 14 causes the storage unit 15 to store the current value data Da received by the communication unit 11, and based on the current value data Da, the leakage current measured in the branch electric circuit Lb1. The value is specified and numerically entered in the “leakage current value input field for the branch electric circuit Lb1” for display. In the same manner as in the above examples, the leakage current value measured by the "leakage current measuring device" such as the measuring device 2 is input to the "leakage current value input field for the branch circuit Lb1" by operating the operation unit 12. It is also possible to adopt a working method of inputting numerical values into the .

Subsequently, the processing unit 14 compares the leakage current value measured for the main electric line Lm and the leakage current value measured for the branch electric line Lb1. At this time, when there is a leakage current in the branch circuit Lb1 while no leakage occurs in the main circuit Lm and the branch circuits Lb2 and Lb3, the leakage current value for the branch circuit Lb1 is equal to the leakage current for the main circuit Lm. value (or approximately the same value). Therefore, when the leakage current value for the branch electric circuit Lb1 is within a predetermined range with respect to the leakage current value for the main electric circuit Lm, the processing unit 14 identifies that an electric leakage has occurred in the branch electric circuit Lb1. (an example of “occurrence location identification processing”). At this time, the processing unit 14 causes the display unit 13 to display, as an example, a message “Earth leakage has occurred in the branch electric circuit 1” (an example of the “occurrence point notification processing”) according to the support processing program Dp. ), and terminates the support process for supporting the operation of identifying the location where the electric leakage has occurred.

Further, when there is no leakage in the main electric line Lm and any one of the branch electric lines Lb2 and Lb3 in a state where no electric leakage has occurred in the branch electric line Lb1, the leakage current value for the branch electric line Lb1 is equal to that for the main electric line Lm. It is a value that is smaller than the predetermined range for the leakage current value and is within the range of current values that can be measured normally (normal value range). At this time, the processing unit 14 identifies that no electric leakage has occurred in the branch electric circuit Lb1, and displays a message such as "Please measure the leakage current value of the branch electric circuit 2" on the display unit 13. At the same time, the input of the leakage current value is requested by, for example, blinking a character input cursor in the "leakage current value input field for the branch electric circuit Lb2" on the display screen (not shown).

Further, when a leak occurs not only in the branch electric line Lb1 but also in the main electric line Lm and any of the branch electric lines Lb2 and Lb3, the leakage current value for the branch electric line Lb1 is equal to the main electric line Although the value is smaller than the predetermined range for the leakage current value for Lm, it is larger than the range of current values that can be measured in normal times (normal value range). At this time, the processing unit 14 identifies that an electric leakage has occurred in the branch electric circuit Lb1 (another example of the “occurrence location identification process”), and also states that “an electric leakage has occurred in the branch electric circuit 1.” message is displayed on the display unit 13 (another example of the "occurrence location notification process"). Further, as an example, when the operator operates the "confirm button", the processing unit 14 displays a message "Please measure the leakage current value of the branch electric circuit 2" instead of the above message. is displayed on the display unit 13, and the input of the leakage current value is requested by blinking the character input cursor in the "leakage current value input field for the branch electric circuit Lb2" in the display screen (not shown). .

Regarding the processing after the message requesting the measurement of the leakage current value for the branch electric circuit Lb2 is displayed on the display unit 13, the message requesting the measurement of the leakage current value for the branch electric circuit Lb1 is displayed on the display unit 13. Since it is the same as the above-described processing after the point of time when it is displayed, detailed description will be omitted. (when the leakage occurs only in the branch circuit Lb2), and the total value of the leakage current value for the branch circuit Lb1 and the leakage current value for the branch circuit Lb2 is predetermined with respect to the leakage current value for the main circuit Lm. Except when the value is within the specified range (when the electric leakage occurs only at two locations of the branch electric lines Lb1 and Lb2), the measurement processing for the branch electric line Lb3 is requested.

Specifically, as an example, the processing unit 14 causes the display unit 13 to display a message "Please measure the insulation resistance value of the branch electric circuit 3." Input of the insulation resistance value is requested by blinking the character input cursor in the "insulation resistance value input field" (not shown). After seeing such a message and the blinking display of the character input cursor, the operator switches the connection/disconnection switch Sw3 to the OFF state, connects the test lead 3a of the measuring device 3 to the electric wire of the branch electric line Lb3, and obtains the insulation resistance value. measurement process. As a result, the resistance value data Dr capable of specifying the insulation resistance value of the branch electric circuit Lb3 measured by the measuring device 3 is transmitted from the measuring device 3 and received by the communication unit 11 of the mobile information terminal 1 .

In addition, in the portable information terminal 1, the processing unit 14 causes the storage unit 15 to store the resistance value data Dr received by the communication unit 11, and based on the resistance value data Dr, the insulation resistance measured in the branch electric line Lb3. The specified value is entered and displayed in the "insulation resistance value input field for the branch electric circuit Lb3". In the same manner as in the above examples, the insulation resistance value measured by the "insulation resistance measuring device" such as the measuring device 3 is input to the "insulation resistance value input field for the branch circuit Lb3" by operating the operation unit 12. It is also possible to adopt a working method of inputting numerical values into the .

Subsequently, the processing unit 14 calculates a leakage current value for the branch electric line Lb3 based on the voltage value measured for the main electric line Lm and the insulation resistance value measured for the branch electric line Lb3. Specifically, the processing unit 14 calculates the leakage current value of the branch electric circuit Lb3 by dividing the voltage value of the main electric circuit Lm by the insulation resistance value of the branch electric circuit Lb3 based on the support processing program Dp. (An example of "measured value arithmetic processing"). Next, the processing unit 14 generates current value data Da that can specify the calculated leakage current value, stores it in the storage unit 15, and stores the calculated leakage current value in the "leakage current value input field for the branch electric circuit Lb3". ” to display it. As described above, the "measured value acquisition process" for each electrical circuit L forming the inspection object X is completed.

The processing unit 14 also compares the leakage current value for the branch electric line Lb3 with the leakage current value for the main electric line Lm. At this time, when there is a leakage current in the branch circuit Lb3 while no leakage occurs in the main circuit Lm and the circuits Lb1 and Lb2, the leakage current value for the branch circuit Lb3 is equal to the leakage current value for the main circuit Lm. (or approximately the same value). Therefore, when the leakage current value for the branch electric circuit Lb3 is within a predetermined range with respect to the leakage current value for the main electric circuit Lm, the processing unit 14 identifies that the electric leakage has occurred in the branch electric circuit Lb3. (Still another example of the “occurrence location specifying process”). At this time, the processing unit 14 causes the display unit 13 to display, as an example, a message "Earth leakage has occurred in the branch electric circuit 3" (an example of the "occurrence location notification process") according to the support processing program Dp. ).

Further, when there is no leakage in the branch circuits Lb1 to Lb3 and there is a leakage in the main circuit Lm, the leakage current value for the branch circuit Lb3 is the same as the leakage current values for the branch circuits Lb1 and Lb2. Then, it is a value smaller than the predetermined range for the leakage current value for the trunk line Lm and within the range of current values that can be measured in normal times (normal value range). At this time, the processing unit 14 identifies that no electric leakage has occurred in the branch electric line Lb3 and that an electric leakage has occurred in the main electric line Lm, and as an example, "an electric leakage has occurred in the main electric line." is displayed on the display unit 13 (still another example of the "occurrence location notification process").

Furthermore, when an electric leakage occurs between the main electric line Lm and any one of the branch electric lines Lb1 and Lb2 and the branch electric line Lb3, the leakage current value for the branch electric line Lb3 is predetermined with respect to the leakage current value for the main electric line Lm. Although the value is smaller than the range described above, the value is larger than the range of current values that can be measured under normal conditions (normal value range). At this time, the processing unit 14 identifies that an electric leakage has occurred in the branch electric circuit Lb3 (still another example of the “occurrence location identification process”), and also indicates that “an electric leakage has occurred in the branch electric circuit 3.” message is displayed on the display unit 13 (another example of the "occurrence location reporting process").

After that, the processing unit 14 acquires the current value data Da, the voltage value data Dv, and the resistance value data Dr obtained by the series of processes described above, and the information that can specify the electrical path L specified as having the leakage. The test result data D1 are generated in association with each other, the generated test result data D1 are stored in the storage unit 15, and a series of supporting processes for supporting the operation of identifying the location where the electric leakage occurs ends. Further, the inspection result data D1 generated by the above process can be transferred from the portable information terminal 1 to an arbitrary information processing terminal via the Internet or the like, so that the information processing terminal can display the state of the inspection object X (earth leakage). It is possible to specify the presence or absence of occurrence, which electric circuit L has the electric leakage, etc.).

As described above, in the mobile information terminal 1, the processing unit 14 supports the work of specifying the leakage occurrence location for the inspection target X for which the leakage current value for the branch electric circuit Lb3 cannot be measured. a measurement value acquisition process for acquiring the leakage current value for the electric circuit Lm, the voltage value for the main electric circuit Lm, the insulation resistance value for the branch electric circuit Lb3, and the leakage current values for the branch electric circuits Lb1 and Lb2 as "measured values"; , the leakage current value for the branch electric circuit Lb3 based on the voltage value for any one of the trunk electric circuit Lm and each branch electric circuit Lb (the trunk electric circuit Lm in this example) and the insulation resistance value for the branch electric circuit Lb3. Based on the measurement value calculation processing to be calculated and the leakage current value for the main electric circuit Lm and the leakage current value for each branch electric circuit Lb, generation to specify in which of the main electric circuit Lm and each branch electric circuit Lb the leakage has occurred It is configured to be able to execute a location specifying process and an occurrence location notification process for notifying the location where the electric leakage is occurring so that the location can be specified. Further, the support processing program Dp causes the processing unit 14 of the portable information terminal 1 to execute each of the above processing.

Therefore, according to the mobile information terminal 1, the inspection system 100, and the support processing program Dp, even for an inspection target X having a branch electric circuit Lb3 whose leakage current value cannot be measured, the branch electric circuit Lb3 is By measuring the insulation resistance value with the measuring device 3, it is measured in the energized state based on the voltage value for any one of the above (in this example, the main electric line Lm) and the insulation resistance value for the branch electric line Lb3. Since the obtained leakage current value is calculated, it is no longer necessary to specify the leakage occurrence point in a state where different types of measured values (leakage current value and insulation resistance value) are mixed. It is possible to easily identify whether or not the electrical leakage is occurring, and to what extent the electrical leakage is occurring. As a result, even an operator unfamiliar with the electric leakage inspection can reliably and easily identify whether an electric leakage has occurred in the inspection target X and in which electric path L the electric leakage has occurred.

Further, in the portable information terminal 1, when the leakage current value of the main electric circuit Lm acquired in the measurement value acquisition process is below a predetermined value, the processing unit 14 determines that the location of the leakage occurrence in the inspection target X is identifiably notified that there is no , and the support processing is terminated. Therefore, according to the mobile information terminal 1, the inspection system 100, and the support processing program Dp, the ground leakage inspection, which is often performed in a state where there is no ground leakage, can be performed without performing unnecessary measurement processing. A normal state can be reliably and easily identified.

Furthermore, in this portable information terminal 1, the current value data Da in which the leakage current value for the main electric line Lm is recorded, and the voltage value for any one of the electric lines L (in this example, the main electric line Lm) is A communication unit capable of receiving the recorded voltage value data Dv, the resistance value data Dr in which the insulation resistance value of the branch electric circuit Lb3 is recorded, and the current value data Da in which the leakage current values of the branch electric circuits Lb1 and Lb2 are recorded. 11, and the processing unit 14 acquires the values of the data Da, Dv, and Dr received by the communication unit 11 as "measurement values" in the measurement value acquisition process. Further, in this inspection system 100 , the mobile information terminal 1 described above performs measurement processing on the inspection object X to generate current value data Da, voltage value data Dv, and resistance value data Dr, and sends them to the mobile information terminal 1 . It comprises measuring devices 2, 3 for transmission.

Therefore, according to the mobile information terminal 1, the inspection system 100, and the support processing program Dp, unlike the processing mode in which the measurement results of the measuring devices 2, 3, etc. are read and the numerical values are manually input into the mobile information terminal 1, Since a measured value different from the original measured value is not acquired due to incorrect input of a numerical value, the electric circuit L where the electric leakage does not occur is specified as the electric leakage occurrence location, and the electric circuit where the electric leakage has occurred It is possible to suitably avoid the situation where L is specified as normal (no leakage occurs), and to more accurately and easily specify which electric circuit L has leakage to what extent.

Regarding the configuration of the "support device" and the "inspection system" and the processing procedure by the "support processing program", the configuration of the portable information terminal 1 and the inspection system 100 and the processing procedure by the support processing program Dp are described below. Examples are not limiting.

For example, prior to the earth leakage inspection (identification work of the location where the earth leakage occurs), among the electric circuits L constituting the inspection object X, there is an electric circuit L (branch electric circuit Lb3 in the above example) whose leakage current value cannot be measured. Although the configuration and processing method for generating inspection data D0 by registering the existence in advance and supporting the leakage inspection based on this inspection data D0 have been described, instead of such a configuration and processing method, the above configuration and processing method can be used. When the earth leakage inspection is started without pre-registration such as, and the voltage value data Dv for any one of the main electric circuit Lm and the branch electric circuits Lb1 to Lb3 is received (the voltage value data Dv is the measuring device 3 ), or when the resistance value data Dr for the branch electric circuit Lb3 is received (when the resistance value data Dr is sent from the measuring device 3), the leakage current value for the branch electric circuit Lb3 is measured. It is also possible to adopt a configuration and processing method that determines that it is necessary to perform measurement value calculation processing to calculate a leakage current value as a “measurement value” and to execute a series of processing.

In addition, when the leakage current value for any of the branch circuits Lb is within a predetermined range with respect to the leakage current value for the main circuit Lm, or when the total value of the leakage current values for a plurality of branch circuits Lb is the main When the leakage current value for the electric circuit Lm is within a predetermined range, even if there is an electric circuit L for which the measurement process has not been performed, the support process is terminated without performing the measurement process for them. Although the example has been described, even in the above state, the measurement processing is performed for all the branch electric circuits Lb that constitute the inspection object X, and the location of the leakage occurrence is determined based on the leakage current value for each electric circuit L. A specified configuration and processing method can also be adopted.

In addition, a configuration for transmitting current value data Da, voltage value data Dv, resistance value data Dr, etc. from the measuring devices 2 and 3 by wireless communication conforming to a short-range wireless communication standard such as the Bluetooth standard and acquiring them by the portable information terminal 1 Although the processing method has been described as an example, the acquisition of each "measurement value data" from the "measuring device" by the "support device" requires wireless communication conforming to a wireless communication standard other than the Bluetooth standard (e.g., wireless LAN, etc.). ), or a configuration and processing method performed by wired communication using a signal cable such as a USB cable.

100 inspection system 1 mobile information terminal 2, 3 measuring device 2
2a clamp sensor 3a test lead 11 communication unit 12 operation unit 13 display unit 14 processing unit 15 storage unit D0 inspection data D1 inspection result data Da current value data Dv voltage value data Dr resistance value data Dp support processing program Lb1 to Lb3 branch Electric circuit Lm Main electric circuit X Inspection object

Claims (4)

A support device comprising a processing unit that executes a support process for supporting an operation of identifying an electric leakage occurrence location in an inspection object based on a measurement value of the inspection object measured by a measuring device having a clamp sensor,
Equipped with a measurement value data receiver,
The processing unit has a main electric circuit and a plurality of branch electric circuits branched from the main electric circuit, and at least one of the branch electric circuits is difficult to clamp by the clamp sensor, so that the measuring device measures the leakage current value. In the support processing for the inspection target that cannot be performed,
First measured value data recording a leakage current value for the main electric circuit, second measured value data recording a voltage value for any one of the main electric circuit and the plurality of branch electric circuits, Third measured value data recording the insulation resistance value for the at least one branch circuit, and fourth measured value data recording the leakage current value for the branch circuit excluding the at least one branch circuit The first measured value data and the fourth measured value data are received by the measured value data receiving unit from the first measuring device provided with the clamp sensor as the measuring device, and the second measured value data causing the measured value data receiving unit to receive the measured value data and the third measured value data from the second measuring device as the measuring device, and the first measured value data received by the measured value data receiving unit , a measured value acquisition process for acquiring the values of the second measured value data, the third measured value data, and the fourth measured value data as the measured values;
measurement value calculation processing for calculating a leakage current value for the at least one branch electric line based on the voltage value for any one of the above and the insulation resistance value for the at least one branch electric line;
occurrence location identification processing for identifying in which of the main electric circuit and each of the branch electric circuits the electric leakage has occurred based on the leakage current value of the main electric circuit and the leakage current value of each of the branch electric circuits;
A support device configured to be capable of executing a location reporting process for identifiably reporting a location where an electric leakage has occurred. The processing unit can identify that there is no leakage occurrence location in the inspection object when the leakage current value for the main electric circuit acquired in the measurement value acquisition process is below a predetermined value. 2. The support device according to claim 1, wherein the support processing is terminated by giving notification. 3. The supporting device according to claim 1, and the first measured value data, the second measured value data, the third measured value data generated by executing the measurement process on the inspection object, and the An inspection system comprising the first measurement device and the second measurement device as the measurement devices that transmit fourth measurement value data to the support device. A support processing program for causing a processing unit of a support device to execute support processing for supporting an operation of identifying an electric leakage occurrence location in an object to be inspected based on measured values of the object to be inspected, which are measured by a measuring device equipped with a clamp sensor. hand,
It has a main electric circuit and a plurality of branch electric circuits branched from the main electric circuit, and it is difficult to clamp at least one of the branch electric circuits by the clamp sensor, so that the leakage current value cannot be measured by the measuring device. In the support processing for the inspection target,
First measured value data recording a leakage current value for the main electric circuit, second measured value data recording a voltage value for any one of the main electric circuit and the plurality of branch electric circuits, Third measured value data recording the insulation resistance value for the at least one branch circuit, and fourth measured value data recording the leakage current value for the branch circuit excluding the at least one branch circuit The first measured value data and the fourth measured value data are received by the measured value data receiving unit of the support device from the first measuring device provided with the clamp sensor as the measuring device, and causing the measured value data receiving unit to receive the second measured value data and the third measured value data from the second measuring device as the measuring device, and the first measured value data received by the measured value data receiving unit a measured value acquisition process for acquiring the values of the measured value data, the second measured value data, the third measured value data, and the fourth measured value data as the measured values;
measurement value calculation processing for calculating a leakage current value for the at least one branch electric line based on the voltage value for any one of the above and the insulation resistance value for the at least one branch electric line;
occurrence location identification processing for identifying in which of the main electric circuit and each of the branch electric circuits the electric leakage has occurred based on the leakage current value of the main electric circuit and the leakage current value of each of the branch electric circuits;
and a support processing program for causing the processing unit to execute an occurrence point notification process for identifiably reporting a location where an electric leakage has occurred.

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