JP7228261B2 - Multimeter with data transfer function, multimeter main unit, and program - Google Patents

Description

The present invention relates to a multimeter with a data transfer function, a multimeter body, and a program.

Among multimeters that measure electrical parameters, there is known a multimeter that performs wireless communication with a smartphone while performing measurement, displays the measurement results on the display of the smartphone, and stores the measurement results in the memory of the smartphone (Patent Document 1). If the measurement results can be stored in the memory of the smartphone, it will be convenient for data management by transmitting the measurement results to other locations using a mobile phone communication network or the like.

JP 2012-160174 A

In the conventional technology, the user needs to operate the multimeter or operate the smartphone in order to perform various operations such as storing measurement results in the memory of the smartphone.
However, in order to make a measurement, the user often must hold two probes connected to the multimeter. In this case, the user may have to operate the multimeter, the smartphone, or both with both hands occupied. For example, in the inspection of a switchboard, if there are many terminals to be checked, the operation of the probe and the operation of the multimeter or smart phone must be performed simultaneously or alternately, which poses a problem in terms of work efficiency.

In one aspect of the invention, a multimeter includes a probe and a multimeter body. The probe includes a head portion that contacts the measurement object and a switch. The main body of the multimeter is connected to the probe, measures the electrical physical quantity of the object to be measured a plurality of times, and sequentially wirelessly transmits the measurement data of the plurality of times to the portable terminal. The multimeter wirelessly transmits a memory trigger to the portable terminal in response to operation of the switch.

In another aspect of the invention, a multimeter body is connected to a probe that includes a head that contacts an object to be measured and a switch. The main body of the multimeter measures the electrical physical quantity of the object to be measured a plurality of times, wirelessly transmits the measurement data of the plurality of times to the portable terminal in sequence, and wirelessly sends a memory trigger to the portable terminal according to the operation of the switch. Send.

In another aspect of the present invention, the program is a program that operates a portable terminal that wirelessly communicates with a multimeter.
A multimeter includes a probe and a multimeter body. The probe includes a head portion that contacts the measurement object and a switch. The main body of the multimeter is connected to the probe, measures the electrical physical quantity of the object to be measured a plurality of times, and sequentially wirelessly transmits the measurement data of the plurality of times to the portable terminal. The multimeter wirelessly transmits a memory trigger to the portable terminal in response to operation of the switch.
The program includes a process of sequentially receiving multiple measurement data from the multimeter, a process of receiving a memory trigger from the multimeter, and a part of the multiple measurement data corresponding to the memory trigger stored in the storage unit. The portable terminal is made to execute a process of storing and a process of activating the reporting means when the storing in the storage unit is performed.

FIG. 1A conceptually shows the configuration of a multimeter 1 according to a first embodiment of the invention. FIG. 1B conceptually shows the configuration of a portable terminal 5 that wirelessly communicates with the multimeter 1. As shown in FIG. FIG. 2 is a flow chart showing processing of the first control unit 24 and the second control unit 52 in the first embodiment. FIG. 3A conceptually shows the configuration of a multimeter 1a according to a second embodiment of the invention. FIG. 3B conceptually shows the configuration of the trigger generator 35a included in the probe 3a. FIG. 3C conceptually shows the configuration of the portable terminal 5 that wirelessly communicates with the multimeter 1a. FIG. 4 is a flow chart showing processing of the first control unit 24, the second control unit 52, and the third control unit 354 in the second embodiment. FIG. 5 is a flow chart showing part of the processing of the second control unit 52 in the third embodiment of the invention. FIG. 6 is a flowchart showing processing of the first control unit 24 in the fourth embodiment of the invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Each embodiment described below shows an example of the present invention, and does not limit the content of the present invention. Moreover, not all the configurations and operations described in each embodiment are essential as the configurations and operations of the present invention. In addition, the same reference numerals are given to the same components, and redundant explanations are omitted.

<1. A multimeter with a trigger switch on the probe>
FIG. 1A conceptually shows the configuration of a multimeter 1 according to a first embodiment of the invention.
A multimeter 1 is composed of a multimeter body 2 and probes 3 and 4 .

<1-1. Configuration of Multimeter Main Body 2>
The multimeter main body 2 is a device that can switch between a plurality of measurement functions to measure a plurality of electrical physical quantities of an object to be measured. The multimeter body 2 includes, for example, first to fourth terminal holes 211 to 214, a measurement circuit 22, a trigger generation circuit 23, a first control section 24, a first display section 25, and a first communication circuit. 26 and .

The first to fourth terminal holes 211 to 214 are provided with terminals (not shown) (first to fourth terminals) therein.

The measurement circuit 22 is connected to the terminals of the third and fourth terminal holes 213 and 214 and is adapted to switch between multiple measurement functions such as voltage. The measurement circuit 22 measures the electrical physical quantity of the object to be measured based on electrical inputs through the third and fourth terminal holes 213 and 214, digitally converts the measurement results, and converts the measurement data into a third 1 output to the control unit 24 . When the electrical input through the third and fourth terminal holes 213 and 214 continues, the measurement circuit 22 makes new measurements at fixed time intervals, so measurements are made multiple times. The measurement circuit 22 sequentially outputs measurement data for a plurality of times to the first control section 24 .

Trigger generating circuit 23 includes first and second nodes 231 and 232 . The first node 231 is connected to the first terminal of the first terminal hole 211 and the second node 232 is connected to the second terminal of the second terminal hole 212 . Trigger generation circuit 23 generates a storage trigger in response to a change in the electrical connection state between first node 231 and second node 232 and outputs it to first control section 24 . A change in the electrical connection state between the first node 231 and the second node 232 is caused by the probe 3 . The probe 3 will be described later.

The first control unit 24 sequentially generates display data based on the measurement data sequentially input from the measurement circuit 22, sequentially outputs the display data to the first display unit 25, and sequentially outputs the measurement data to the first communication circuit 26. do. The display data and measurement data output from the first control unit 24 may include information such as setting items at the time of measurement and measurement range in addition to the measurement data sequentially input from the measurement circuit 22 .
The first control unit 24 outputs the storage trigger to the first communication circuit 26 when the storage trigger is input from the trigger generation circuit 23 .
The first control unit 24 also performs various controls of the multimeter body 2 .

The first display unit 25 sequentially displays measurement results and other information based on display data sequentially input from the first control unit 24 .

The first communication circuit 26 prepares for communication such as pairing with the portable terminal 5 described later. The first communication circuit 26 sequentially wirelessly transmits the measurement data sequentially input from the first control unit 24 to the portable terminal 5 . The first communication circuit 26 wirelessly transmits the memory trigger to the portable terminal 5 when the memory trigger is input from the first control unit 24 .

<1-2. Configuration of Probes 3 and 4>
The probe 3 includes a wiring portion 31 , a connection portion 32 , a head portion 33 and a switch 34 .
The wiring portion 31 includes three conductive lines 311-313. One end of each of the conductive wires 311 to 313 is positioned at the connecting portion 32 , and the other end of each of the conductive wires 311 to 313 is positioned at the head portion 33 . Regarding the wiring part 31, the illustration of the coating is omitted in order to emphasize the internal conductive wires 311 to 313, but the conductive wires 311 to 313 are separately coated and then bundled into one wire. is re-encapsulated as the code for

The connection portion 32 is configured to be fitted into the first to third terminal holes 211 to 213 . The connecting portion 32 connects the one end of the conductive wire 311 and the first terminal of the first terminal hole 211, and connects the one end of the conductive wire 312 and the second terminal of the second terminal hole 212. , and the one end of the conductive wire 313 and the third terminal of the third terminal hole 213 are connected.

The switch 34 is arranged inside the head portion 33 . The other end of the conductive line 311 and the other end of the conductive line 312 are connected to separate terminals of the switch 34 . The switch 34 is configured to change the electrical connection state between the other end of the conductive line 311 and the other end of the conductive line 312 . A change in the electrical connection state may be, for example, a change from an open state to a shorted state, a change from a shorted state to an open state, or a change between a first resistance value and a second resistance value. (The first resistance value and the second resistance value are set to different values). When the switch 34 is operated to change the electrical connection state between the other end of the conductive line 311 and the other end of the conductive line 312, the electrical connection between the first node 231 and the second node 232 is changed. state changes.

When the head unit 33 contacts the object to be measured, an input corresponding to the electrical physical quantity of the object to be measured is transmitted to the conductive wire 313 .

The probe 4 includes a wiring portion 41 , a connection portion 42 and a head portion 43 .
The wiring part 41 includes a conductive wire. One end of the conductive wire is positioned at the connection portion 42 and the other end of the conductive wire is positioned at the head portion 43 . As for the wiring portion 41, the illustration of the coating is omitted in order to emphasize the internal conductive wires.

The connection portion 42 is adapted to be fitted into the fourth terminal hole 214 . The connecting portion 42 connects the one end of the conductive wire of the wiring portion 41 and the fourth terminal of the fourth terminal hole 214 .

When the head portion 43 contacts the object to be measured, an input corresponding to the electrical physical quantity of the object to be measured is transmitted to the wiring portion 41 .

<1-3. Configuration of Portable Terminal 5>
FIG. 1B conceptually shows the configuration of a portable terminal 5 that wirelessly communicates with the multimeter 1. As shown in FIG. An electricity measurement system is configured by the multimeter 1 and the portable terminal 5 .
The mobile terminal 5 is a portable device having an information processing function and a communication function, such as a smart phone, tablet computer, or notebook computer.
As shown in FIG. 1B, the mobile terminal 5 includes a second communication circuit 51, a second control section 52, a second display section 53, and a storage section .

The second communication circuit 51 prepares for communication such as pairing with the multimeter body 2 . The second communication circuit 51 sequentially receives measurement data from the multimeter body 2 . The second communication circuit 51 sequentially outputs the measurement data received from the multimeter body 2 to the second control section 52 . The second communication circuit 51 outputs the memory trigger to the second controller 52 when receiving the memory trigger from the multimeter body 2 .

The second control unit 52 sequentially generates display data based on the measurement data sequentially input from the second communication circuit 51 and sequentially outputs the display data to the second display unit 53 .
When a storage trigger is input from the second communication circuit 51, the second control unit 52 selects measurement data according to the timing at which the storage trigger is input, and stores the selected measurement data in the storage unit 54. output a write command for Alternatively, the second control unit 52 may store the selected measurement data in a storage unit (not shown) outside the portable terminal 5 . The external storage unit of the mobile terminal 5 may be, for example, a storage unit in a device such as a server connected to the mobile terminal 5 via a network.
The second control unit 52 also performs various controls of the portable terminal 5 .

The second display unit 53 sequentially displays measurement results and other information based on display data sequentially input from the second control unit 52 .

The storage unit 54 stores the measurement data selected by the second control unit 52 when the measurement data write command is input from the second control unit 52 . The storage unit 54 further stores a program, which will be described later, and may be able to read this program in response to a request from the second control unit 52 .

<1-4. Operation of multimeter body>
FIG. 2 is a flow chart showing processing of the first control unit 24 and the second control unit 52 in the first embodiment.

The first controller 24 of the multimeter body 2 operates according to the following procedure.
When the power of the multimeter main body 2 is turned on, the first control section 24 reads out a program from a storage section (not shown) and starts control according to this program. The first control unit 24 prepares for communication such as pairing, if necessary, according to the communication method with the portable terminal 5 .

The first control unit 24 generates display data based on the measurement data input from the measurement circuit 22 (S110). The first control unit 24 outputs the display data to the first display unit 25 to display the measurement result on the first display unit 25, and outputs the measurement data to the first communication circuit 26 to display the measurement data on the first communication circuit 26. 26 to the portable terminal 5 (S120).

The first control unit 24 determines whether or not a storage trigger has been input from the trigger generation circuit 23 (S130).
When a memory trigger is input (S130: YES), the first control unit 24 transmits the memory trigger to the portable terminal 5 via the first communication circuit 26 (S140). After that, the processing of the first control unit 24 returns to S110.
If the memory trigger is not input (S130: NO), the processing of the first control unit 24 returns to S110 without transmitting the memory trigger to the portable terminal 5. FIG.

Returning to S110, display data is generated based on the measurement data input from the measurement circuit 22, and the same processing as described above is repeated. As a result, the multimeter body 2 sequentially displays the measurement results, sequentially transmits the measurement data to the portable terminal 5, and transmits the memory trigger to the portable terminal 5 when the memory trigger is input.

<1-5. Operation of portable terminal>
The second control unit 52 of the portable terminal 5 operates according to the following procedure.
The second control unit 52 reads out the program from the storage unit 54 and starts control according to this program. The second control unit 52 prepares for communication such as pairing, if necessary, according to the communication method with the multimeter body 2 .

The second control unit 52 determines whether measurement data has been received from the multimeter body 2 (S220). When the measurement data is received (S220: YES), the second control unit 52 generates display data based on the measurement data, and outputs the measurement result to the second display unit 53 by outputting it to the second display unit 53. display (S230). If the measurement data has not been received (S220: NO), the second control unit 52 repeats the determination of S220 until the measurement data is received.

After S230, the second control unit 52 determines whether or not a memory trigger has been received from the multimeter body 2 (S240).

When the storage trigger is received (S240: YES), the second control unit 52 selects measurement data according to the timing at which the storage trigger is input, and causes the storage unit 54 to store the selected measurement data. For example, the measurement data corresponding to the measurement result displayed on the second display section 53 when the storage trigger is received is stored in the storage section 54 (S250).

The second control unit 52 may cause the storage unit 54 to store other information in addition to storing the measurement data. For example, the second control unit 52 may acquire the current time from an internal clock (not shown) and store the current time in association with the measurement data. Further, the second control unit 52 may acquire the current position from a GPS (Global Positioning System) signal receiver (not shown) and store the current position in association with the measurement data. Furthermore, both the current time and the current position may be stored in association with the measurement data.

If the storage trigger has not been received (S240: NO), the second control unit 52 returns to S220 without storing the measurement data.
Returning to S220, it is determined whether measurement data has been received from the multimeter body 2, and the same processing as described above is repeated. Thereby, the portable terminal 5 sequentially displays the measurement results, and stores the selected measurement data in the storage unit 54 when the storage trigger is input.

<1-6. Effect>
According to the first embodiment, the probe 3 includes the head portion 33 that contacts the measurement object and the switch 34 . The multimeter main body 2 is connected to the probe 3 , measures the electrical physical quantity of the object to be measured a plurality of times, and sequentially wirelessly transmits the measurement data of the plurality of times to the portable terminal 5 . The multimeter body 2 wirelessly transmits the storage trigger to the portable terminal 5 in response to the operation of the switch 34 . According to this, the user can perform measurement while holding the probe 3, and when he/she wants to store the measurement data in the portable terminal 5, he/she presses the switch 34 provided on the probe 3 while holding the probe 3. Manipulate. For example, in the inspection of a switchboard, if the multimeter body 2 and the portable terminal 5 are set once, the multimeter body 2 and the portable terminal 5 can be operated continuously while holding the probe 3 without having to operate them one by one. A large number of terminals can be inspected, and measurement data can be stored in the portable terminal 5 as necessary, thereby improving work efficiency.
Furthermore, when the probe 4 is also used for measurement, if one hand holds the probe 3 and the other hand holds the probe 4, both hands are occupied, so the multimeter body 2 and the portable terminal 5 must be operated one by one. The advantage of not having to do it becomes even clearer.

According to the first embodiment, the multimeter body 2 includes a trigger generation circuit 23, a measurement circuit 22 for measuring physical quantities, and first, second, and third terminals connected to the probe 3. include. The first terminal is located in the first terminal hole 211 and connected to the first node 231 of the trigger generation circuit 23 . A second terminal is located in the second terminal hole 212 and is connected to the second node 232 of the trigger generating circuit 23 . A third terminal is located in the third terminal hole 213 and is connected to the measuring circuit 22 . Trigger generation circuit 23 generates a storage trigger according to a change in the electrical connection state between first node 231 and second node 232 . According to this, even if the switch 34 of the probe 3 has a simple configuration, the storage trigger can be generated from the trigger generation circuit 23 by changing the electrical connection state of the switch 34 . Also, since the first, second and third terminals are connected to one probe 3, the work of connecting the probe 3 to the first, second and third terminal holes 211 to 213 is simplified. can do.

<2. Multimeter with a wireless communication circuit in the probe>
<2-1. Configuration>
FIG. 3A conceptually shows the configuration of a multimeter 1a according to a second embodiment of the invention.
The multimeter 1a is composed of a multimeter body 2a and probes 3a and 4. As shown in FIG.

The multimeter body 2a differs from the multimeter body 2 described with reference to FIG. 1A in that it does not include the first and second terminal holes 211 and 212 and the trigger generating circuit 23. FIG.

The probe 3a includes a wiring portion 31a, a connection portion 32a, a head portion 33, and a trigger generator 35a.
The wiring portion 31 a includes a conductive line 313 . The wiring portion 31 a differs from the wiring portion 31 described with reference to FIG. 1A in that it does not include the conductive lines 311 and 312 .
The connection portion 32 a is configured to be fitted into the third terminal hole 213 . The connecting portion 32 a connects one end of the conductive wire 313 and the third terminal of the third terminal hole 213 .

The trigger generator 35a is arranged inside the head section 33 .
FIG. 3B conceptually shows the configuration of the trigger generator 35a included in the probe 3a. The trigger generation device 35 a includes a trigger generation circuit 350 , a switch 353 , a third control section 354 and a third communication circuit 355 .

Trigger generation circuit 350 includes first and second nodes 351 and 352 . Trigger generation circuit 350 generates a storage trigger according to a change in the electrical connection state between first node 351 and second node 352 and outputs it to third control section 354 . A change in the electrical connection state between the first node 351 and the second node 352 is caused by the switch 353 .

Separate terminals of the switch 353 are connected to the first node 351 and the second node 352 . The switch 353 is configured to change the electrical connection state between the first node 351 and the second node 352 .

The third control unit 354 outputs the memory trigger to the third communication circuit 355 when the memory trigger is input from the trigger generation circuit 350 .
The third communication circuit 355 wirelessly transmits the memory trigger to the mobile terminal 5 when the memory trigger is input from the third control unit 354 .

In other respects, the configuration of the multimeter 1a according to the second embodiment is similar to the configuration of the multimeter 1 according to the first embodiment described with reference to FIG. 1A.

FIG. 3C conceptually shows the configuration of the portable terminal 5 that wirelessly communicates with the multimeter 1a.
The configuration of the mobile terminal 5 is the same as the configuration of the mobile terminal 5 described with reference to FIG. 1B.

<2-2. Operation of multimeter body>
FIG. 4 is a flow chart showing processing of the first control unit 24, the second control unit 52, and the third control unit 354 in the second embodiment.

The first control section 24 of the multimeter body 2a performs the processes of S110 and S120. After S120, the process of the first control unit 24 returns to S110. As a result, the multimeter main body 2 a sequentially displays the measurement results and also sequentially transmits the measurement data to the portable terminal 5 .

<2-3. Probe operation>
The third controller 354 of the probe 3a operates according to the following procedure.
When the power is turned on, the third control unit 354 reads out a program from a storage unit (not shown) and starts control according to this program. The third control unit 354 prepares for communication such as pairing, if necessary, according to the communication method with the portable terminal 5 .

The third control unit 354 determines whether or not a storage trigger has been input from the trigger generation circuit 350 (S330a).
When the memory trigger is input (S330a: YES), the third control section 354 transmits the memory trigger to the portable terminal 5 via the third communication circuit 355 (S340a). After that, the process of the third control unit 354 returns to S330a.
If the memory trigger is not input (S330a: NO), the third control unit 354 repeats the process of S330a without transmitting the memory trigger to the portable terminal 5.
Thereby, the probe 3a transmits the memory trigger to the portable terminal 5 when the switch 353 is operated.

<2-4. Operation of portable terminal>
The second control unit 52 of the portable terminal 5 prepares for communication such as pairing with the multimeter body 2a and pairing with the probe 3a, if necessary.
After that, the second control unit 52 performs the processing from S220 to S250. The portable terminal 5 receives the memory trigger from the probe 3a, not from the multimeter body 2a (S240a). Thereby, the portable terminal 5 sequentially displays the measurement results, and stores the selected measurement data in the storage unit 54 when the storage trigger is input.
Otherwise, the operation of the second embodiment is similar to the operation of the first embodiment described with reference to FIG.

<2-5. Effect>
According to the second embodiment, the probe 3a includes a head portion 33 that contacts the object to be measured, a switch 353, a trigger generation circuit 350, and a third communication circuit 355. The multimeter body 2a is connected to the probe 3a, measures the electrical physical quantity of the object to be measured a plurality of times, and wirelessly transmits the measurement data of the plurality of times to the portable terminal 5 in sequence. The trigger generating circuit 350 generates a memory trigger according to the operation of the switch 353 , and the third communication circuit 355 wirelessly transmits the memory trigger to the portable terminal 5 . According to this, as in the first embodiment, measurement can be performed while holding the probe 3a without operating the multimeter body 2a and the portable terminal 5 one by one, and measurement data can be carried as necessary. can be stored in the type terminal 5.

Furthermore, according to the second embodiment, the memory trigger can be transmitted to the portable terminal 5 without providing the first and second terminal holes 211 and 212 for trigger input in the multimeter main body 2a. .

The second embodiment is not limited to the configuration described above, and the multimeter body 2a may include the trigger generation circuit 23 described with reference to FIG. 1A. In the multimeter body 2a, the first communication circuit 26 receives the memory trigger from the probe 3a, the trigger generation circuit 23 generates a new memory trigger based on this memory trigger, and the newly generated memory trigger is generated as the first memory trigger. 1 communication circuit 26 may transmit to portable terminal 5 . According to this, communication between the probe 3a and the portable terminal 5 becomes unnecessary. Since the distance between the probe 3a and the multimeter main body 2a is less than the length of the wiring portion 31a, the options for communication means between the probe 3a and the multimeter main body 2a are widened. For example, radio waves are used for communication between the multimeter main body 2a and the portable terminal 5, enabling communication over several tens of meters, while infrared rays are used for communication between the probe 3a and the multimeter main body 2a. is also possible.

As shown in FIG. 3A, when the multimeter main body 2a does not include the trigger generating circuit 23, the multimeter main body 2a may have the same structure as a known multimeter main body. and the probe 3a, the present invention can be implemented. Therefore, the cost for introducing the present invention can be suppressed.

<3. Program for activating notification means>
<3-1. Operation of portable terminal>
FIG. 5 is a flow chart showing part of the processing of the second control unit 52 in the third embodiment of the invention. The processing shown in FIG. 5 corresponds to the subroutine of S250 in FIG. 2 or FIG. The configuration of the third embodiment may be the same as the configuration of the first or second embodiment. The operation of the third embodiment may be the same as the operation of the first or second embodiment except for the processing shown in FIG.

The second control unit 52 of the portable terminal 5 stores the measurement data in the storage unit 54 (S254b). The specific content of S254b is the same as the content of S250 described in the first or second embodiment.

The second control unit 52 determines whether or not the measurement data has been successfully stored (S255b).
If the measurement data has been successfully stored (S255b: YES), the second control unit 52 activates the notification means (S256b), and terminates the processing of this subroutine.
If the measurement data is not successfully stored (S255b: NO), the second control unit 52 terminates the processing of this subroutine without activating the notification means. If the storage of the measurement data is not successful in this way, it is not necessary to report the failure. The reasons why measurement data cannot be successfully stored are not limited to errors during the processing of S254b, but also misoperation or malfunction of the switch 34 or 353, malfunction of the trigger generation circuit 23 or 350, malfunction of each control unit, malfunction of each communication unit, etc. There is also the possibility of circuit malfunction or communication failure, and the necessity of notifying only errors during the processing of S254b is not necessarily high. As shown in FIG. 5, the user can recognize unsuccess by activating the reporting means only when successful and not reporting otherwise.

If the reliability of the operation of the portable terminal 5 is high, the determination of whether or not the storage was successful (S255b) may be omitted. That is, the notification means may be activated at the same time as the process of S254b is executed.

The notifying means for informing the success of storage may be one in which the portable terminal 5 outputs a sound, may vibrate, light a lamp, or display some kind of display on the second display section 53. It can be done.

<3-2. Effect>
According to the third embodiment, the program causes the portable terminal 5 to execute the following processes. In other words, the portable terminal 5 sequentially receives a plurality of measurement data from the multimeter 1 or 1a (S220), receives a storage trigger from the multimeter 1 or 1a (S240 or S240a), and receives a plurality of measurement data. Part of the data corresponding to the storage trigger is stored in the storage unit 54 (S250, S254b). Then, when the information is stored in the storage unit 54 (S255b), the notification means is operated (S256b). According to this, the user can know that the storage has been successful without checking the contents stored in the storage unit 54 one by one at the time of measurement, and work efficiency can be improved.

The informing means for informing successful storage is preferably by sound or vibration. According to this, even if the user does not pay attention to the portable terminal 5, it is possible to know that the storage is successful. For example, even when the user carries out the measurement with the portable terminal 5 in the pocket of the work clothes worn by the user, the success of the memory can be known by sound or vibration. Therefore, since the operator can concentrate on the operation of the probe 3 or 3a, the probe 4, the multimeter body 2 or 2a, etc., it is possible to improve work efficiency and reduce measurement errors.

<4. Program for notifying multimeter main unit or probe>
<4-1. Operation of multimeter body>
In the fourth embodiment, further improvements are added to the notification means of the third embodiment. That is, in the fourth embodiment, the reporting means for reporting successful storage described in the third embodiment may transmit a reporting signal to the multimeter body 2 via the second communication circuit 51 . In this case, the second control unit 52 generates a notification signal and outputs it to the second communication circuit 51 in S256b of FIG.

FIG. 6 is a flowchart showing processing of the first control unit 24 in the fourth embodiment of the invention. The first controller 24 of the multimeter body 2 operates according to the following procedure.

The processing from S110 to S140 is the same as that described in the first embodiment.
After S140, the first control unit 24 determines whether or not a notification signal has been received from the portable terminal 5 (S150c). When the notification signal is received from the portable terminal 5 (S150c: YES), the first control unit 24 operates the notification means of the multimeter body 2 (S160c). After that, the processing of the first control unit 24 returns to S110. If the notification signal has not been received from the portable terminal 5 (S150c: NO), the processing of the first control unit 24 returns to S110 without activating the notification means.

The notification means of the multimeter main body 2 may output sound, generate vibration, turn on a lamp, or display some kind of display on the first display section 25 .

Although FIG. 6 adds S150c and S160c to the processing of the first control unit 24 of FIG. 2, the present invention is not limited to this. By adding S150c and S160c to the processing of the first control unit 24 in FIG. 4, the first control unit 24 of the multimeter body 2a may receive the notification signal from the portable terminal 5. Alternatively, by adding S150c and S160c to the processing of the third control unit 354 in FIG. 4, the third control unit 354 of the probe 3a may receive the notification signal from the portable terminal 5.

Further, the notification means operated in S160c is not limited to the multimeter main body 2 or 2a outputting sound, generating vibration, lighting a lamp, displaying on the display unit, or the like. The probe 3 or 3a may be caused to output sound, generate vibration, light a lamp, or the like.

<4-2. Effect>
According to the fourth embodiment, by transmitting a notification signal to the multimeter 1 or 1a when the memory is successful, the user can know the memory success without checking the behavior of the portable terminal 5 one by one. Work efficiency can be improved. For example, while the portable terminal 5 is placed on a workbench or in a bag, the user carries the multimeter main body 2 or 2a, the probe 3 or 3a, and the probe 4 to a place away from the portable terminal 5. In the case of inspecting various facilities, it is possible to know whether the data has been successfully stored in the portable terminal 5 by checking the behavior of the multimeter main body 2 or 2a or the probe 3 or 3a.

The notification means of the multimeter body 2 or 2a is preferably sound or vibration. According to this, even if the user does not pay attention to the multimeter main body 2 or 2a, the user can know that the memory has been successful, and can concentrate on the operation of the probe 3 or 3a and the probe 4, etc., thereby improving work efficiency. and reduce measurement errors.

1, 1a... multimeter, 2, 2a... multimeter body, 3, 3a, 4... probe, 5... portable terminal, 22... measurement circuit, 23... trigger generation Circuits 24... First control section 25... First display section 26... First communication circuit 31, 31a... Wiring section 32, 32a... Connection section 33.. .head section 34...switch 35a...trigger generator 41...wiring section 42...connection section 43...head section 51...second communication circuit 52. .. second control section, 53... second display section, 54... storage section, 211... first terminal hole, 212... second terminal hole, 213... third terminal hole, 214... fourth terminal hole, 231... first node, 232... second node, 311, 312, 313... conductive line, 350... trigger generating circuit, 351... first node, 352... second node, 353... switch, 354... third control section, 355... third communication circuit

Claims (3)

A probe including a head portion that contacts a measurement object, a switch, a trigger generation circuit that generates a memory trigger in response to operation of the switch, and a second communication circuit that wirelessly transmits the memory trigger to a portable terminal. and,
a measuring circuit connected to the probe for measuring the electrical physical quantity of the object to be measured a plurality of times ; a multimeter body separate from both the probe and the portable terminal ;
A multimeter with a A probe including a head portion that contacts a measurement object, a switch, a trigger generation circuit that generates a memory trigger in response to operation of the switch, and a second communication circuit that wirelessly transmits the memory trigger to a portable terminal. and,
a measuring circuit connected to the probe for measuring the electrical physical quantity of the object to be measured a plurality of times ; a multimeter body separate from both the probe and the portable terminal ;
A program for operating the portable terminal that wirelessly communicates with a multimeter comprising
a process of sequentially receiving the measurement data from the multimeter body a plurality of times;
a process of receiving the memory trigger from the probe ;
a process of storing, in a storage unit, part of the measurement data of the plurality of times in accordance with the storage trigger;
a process of activating a notification means when the storage in the storage unit is performed;
is executed by the portable terminal. A probe including a head portion that contacts a measurement object, a switch, a trigger generation circuit that generates a memory trigger in response to operation of the switch, and a second communication circuit that wirelessly transmits the memory trigger to a portable terminal. and,
a measuring circuit connected to the probe for measuring the electrical physical quantity of the object to be measured a plurality of times; a multimeter body separate from both the probe and the portable terminal;
multimeter with
A program for operating the portable terminal that wirelessly communicates with
a process of sequentially receiving the measurement data from the multimeter body a plurality of times;
a process of receiving the memory trigger from the probe;
a process of storing, in a storage unit, part of the measurement data of the plurality of times in accordance with the storage trigger;
is executed by the portable terminal.

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