JPH11133086A - Output data processing system of circuit meter and failure diagnosing system of hot-water supplier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data processing system capable of confirming a measured value operating a test rod of circuit meter with the hand holding the test rod, and provide a failure diagnosing system of a hot-water supplier applying such a system. SOLUTION: A failure diagnosing system of a hot-water supplier provided with a hot-water supplier 1 and a failure diagnosing device 3 is provided with a data confirmation operation means 222 for confirming measured data with a circuit meter 210 to the holding part of a test rod 211a of the circuit meter 210 in the case the circuit meter 210 for detecting the operation status of each part of the hot-water supplier is connection to the failure diagnosing device 3. By the operation of this data confirmation operation means 222, the measured value in the operation is recognized at the failure diagnosing device 3 as confirmed measured value and based on this recognized measured results, the failure diagnosing device 3 particularly performs failure diagnosing of the hot-water supplier.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an output data processing system for a circuit meter, and more particularly, to a failure diagnosis system for a water heater, in which an actual measurement value of a circuit meter that constantly fluctuates is determined as a measurement result and is applied to a failure diagnosis device. Recognition technology.

[0002]

2. Description of the Related Art In recent years, automatic control of a water heater has been performed over a considerably wide range, for example, up to filling of a bath, setting of a water level, and adjustment of a hot water temperature. In such a water heater, since the respective components of the water heater (for example, the original gas solenoid valve and the burner) operate in a complicated manner in cooperation with each other, when performing a failure diagnosis, the respective components of the water heater are individually operated and inspected. There is a need.

Incidentally, in the water heater industry including the applicant of the present invention, recently, when such a water heater failure is diagnosed, the operation of each part of the water heater is directly instructed to a controller of the water heater, and the control of the controller is performed. There has been proposed a failure diagnosis device which takes in information on the operation state of a water heater from a section and performs a failure diagnosis. The applicant of the present application has already filed an application for this failure diagnosis device, but the outline is that the device inspector operates the failure diagnosis device connected to the water heater, and according to the screen display of the failure diagnosis device, From a general diagnosis of each part (diagnosis based on data obtained from sensors etc. provided in each part of the water heater) to a detailed diagnosis (diagnosis based on actual measurement results of each part of the water heater by a measuring device connected to the failure diagnosis device) is there.

In the detailed diagnosis at that time, a person who inspects the apparatus uses various measuring instruments (a circuit meter in the illustrated example) provided in the measuring apparatus 2 according to a screen display as shown in FIG. 7, for example. The actual measurement of each part is performed. At this time, when the actual measurement result of the circuit meter is taken into the failure diagnosis device 3, the device inspector selects the selection icons (in the illustrated example, the icons of “confirm” and “cancel” in the illustrated example) By selecting the “determined” side 322, the measured value at that time is taken into the failure diagnosis device 3 as the determined measured result. In other words, the device inspector can use the measured value display icon 3 for displaying the measured value on the circuit meter in real time.
By performing an operation of selecting the “confirmed” side of the selection icon 322 while waiting for the measured value to be stabilized to some extent while looking at 21, the stable measured value is taken into the failure diagnosis device 3 as a confirmed measured result. I have.

[0005]

However, in such a method of determining the actually measured value, the inspector of the apparatus holds the test rod 211a of the circuit meter in his hand and measures each part of the water heater at the same time. 322 must be selected. In other words, the inspector of the device
The selection operation of the selection icon 322 must be performed while maintaining the state where 1a is in contact with the measurement location. For example, when the measurement location is in a complicated place, the test rod 211a is gripped by both hands. In practice, it is difficult to operate the selection icon 322 alone. Even when the test rod 211a is gripped with one hand, when the actual measurement is performed at a place away from the failure diagnosis device 3, the selection icon 322 must be operated alone while operating the test rod 211a. Was difficult.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and an object of the present invention is to determine an actually measured value only by a handle of the test bar while operating the test bar of the circuit meter. An object of the present invention is to provide a water heater failure diagnosis system to which the output data processing system is applied.

[0007]

In order to achieve the above object, a circuit meter output data processing system according to claim 1 of the present invention, a circuit meter, and a measured result connected to the circuit meter and fetched. And a data processing device for performing the processing in (1), wherein the grip portion of the test rod of the circuit meter is provided with data determination operation means for determining an actual measurement value in the circuit meter, and the operation of the data determination operation means is performed. And causing the data processing device to recognize the actual measurement value at the time of the operation as a confirmed actual measurement result. That is,
In the data processing system according to the first aspect of the present invention, the gripper of the test bar of the circuit meter is provided with data determination operation means for determining the actual value measured by the circuit meter, so that the inspector of the device can use the circuit meter. It is possible to determine the actual measurement value alone without leaving the place while performing the actual measurement.

Further, the invention according to claim 2 is characterized in that the data determination operation means is configured to be operable only by the handle while holding the grip portion of the test rod. That is, in the output data processing system according to the second aspect, the data determination operation means is configured to be operable only by the handle of the test rod while holding the grip portion of the test rod, The device inspector can confirm the actual measured value with the handle of the test rod while the test rod is in contact with the measuring point, so that even if the measuring point is in a complicated place, the actual Confirmation can be made.

In a specific configuration of the present invention, for example, a push-button switch is provided as the data confirmation operation means near the tip of the grip portion of the test rod. It is preferable to adopt a configuration that allows determination.

According to a third aspect of the present invention, the data processing device constantly monitors the measured value of the circuit meter, and generates an audible sound when the measured value is within a specified range. An audible sound generating means for generating an audible sound indicating that the operation has been accepted even when the data confirmation operation means is operated is provided.

That is, according to the third aspect of the present invention, the audible sound generating means is configured to generate an audible sound when the measured value is within a specified range while constantly monitoring the measured value with the circuit meter. On the other hand, since the device inspector is configured to notify with an audible sound even when the device inspector operates the data confirmation operation means, the device inspector can determine whether the measured value is normal without visually checking the measured value. It is possible to make a determination, and furthermore, since the acceptance of the operation for determining the actually measured value is notified by an audible sound, erroneous operation of the data determination operation means can be prevented. That is, according to the present invention, if the measured value is within the normal range, the device inspector can end the actual measurement at the measurement point without confirming the specific numerical value of the measured value. While operability can be improved, operability can be improved by preventing erroneous operation.

According to a fourth aspect of the present invention, the data processing system is applied to a failure diagnosis system for a water heater, and includes a water heater and a failure diagnosis device for diagnosing a failure of the water heater. In a failure diagnosis system for a water heater, when a circuit meter for detecting an operation state of each part of the water heater is connected to the failure diagnosis device, a grip portion of a test rod of the circuit meter is used for the circuit diagnosis. A data determination operation means for determining an actual measurement value is provided. By operating the data determination operation means, the actual value measured at the time of the operation is recognized as a determined actual measurement result by the failure diagnosis device, and the recognized actual measurement result is obtained. The failure diagnostic apparatus performs a failure diagnosis of the water heater based on the following.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic configuration of a water heater failure diagnosis system to which a circuit meter output data processing system according to the present invention is applied. The failure diagnosis system shown in FIG. 1 includes a water heater 1, a measuring device 2, and a failure diagnosis device 3 as main components.

As shown in FIGS. 2 and 3, which will be described later, the water heater 1 to be subjected to the failure diagnosis in this system includes at least sensors for detecting the operation status of each part of the equipment and various types of measurement provided in each part of the equipment. A control unit 4 that monitors the operation status of each unit of the device based on the measurement points for actual measurement by the device and the detection results of the sensors and controls the operation of each unit of the device.
And a data communication unit (not shown) that enables various data processed by the control unit 4 to communicate with the outside.
Then, through the data communication unit, the failure diagnosis device 3
, And the operation status of each part of the water heater (detection result of sensors, setting information of sensors, etc.) can be transmitted to the failure diagnosis device 3 from the control unit 4. The control unit 4 is specifically configured by a microcomputer, and includes a control program for controlling each unit of the water heater. Further, for example, although not particularly shown in the present embodiment, the data communication unit can be shared with a data communication unit for a remote controller (not shown) for remotely operating the water heater 1.

FIG. 2 shows an example of an embodiment of the water heater 1. The water heater 1 is provided with an instantaneous water heater 5 a and a water heater 5 b for additional bath heating.
These water heaters 5a, 5b are respectively provided with heat exchangers 6a,
6b as well as burners 7a and 7b for heating the heat exchanger 6. A water inlet pipe 8 and a hot water pipe 9 are connected to the heat exchanger 6a. The water inlet pipe 8 is connected to city water supply, and the hot water pipe 9 is connected to a hot water supply curl described later. A bypass pipe 10 is provided between the water inlet pipe 8 and the tapping pipe 9. The bypass pipe 10 is used for fine adjustment of the hot water supply temperature, and the amount of water flowing from the water inlet pipe 8 to the hot water pipe 9 is adjusted by opening a bypass flow rate control valve 11 provided in the bypass pipe 10. The opening degree of the bypass flow control valve 11 is adjusted by controlling a servomotor 11a constituting a valve drive mechanism based on a command from the control unit 4.

As shown in the figure, the water inlet pipe 8 is provided with a water inlet flow rate sensor 12 for detecting the flow rate of water supplied from the city water supply to the heat exchanger 6a. A sensor 13 is provided. In the illustrated example, a so-called turbine-type sensor is used as the incoming water flow sensor 12, and therefore, a rotor 12a for detecting water flow is disposed inside the incoming water flow sensor 12. Further, for example, a thermistor type sensor is suitably used as the incoming water temperature sensor 13 (the same applies to other temperature sensors). On the other hand, the tapping pipe 9 is provided with a can body temperature sensor 14 for detecting the temperature of the hot water heated by the heat exchanger 6b.
A tap water flow control valve 15 for adjusting the tap water flow rate is provided. A tapping temperature sensor 16 for detecting the tapping temperature after the temperature is adjusted by the bypass pipe 11 is provided downstream of the tapping flow rate adjusting valve 15. The tapping pipe 9 is branched on the downstream side of the tapping flow control valve 15, one of which is connected to a hot water supply curran 17 and the other is connected to a reheating circuit 18 for reheating the bath.

The reheating circuit 18 is used to reheat the water in the bathtub B (not shown) in order to reheat the bathtub B and the heat exchanger 6b.
A return pipe 19 for sucking hot water from the bathtub B and supplying the hot water to the heat exchanger 6b, and a return pipe 19 for circulating the hot water heated by the heat exchanger 6b again to the bathtub. The tube 20 is constituted as a main part. This return pipe 1
9 is provided with a circulation pump 21 for forcibly circulating hot and cold water in the bathtub B, and a downstream heating circuit 18 is provided downstream thereof.
A water flow switch 22 for detecting the flow of water in the inside is provided, and a bath temperature sensor 23 for detecting the temperature of hot water in the bathtub B is further provided downstream of the water flow switch 22.

The tapping pipe 9 is connected to the reheating circuit 18 as described above. Specifically, the tapping pipe 9 is provided with a bath temperature sensor 23 on the return pipe 19.
Is connected to the downstream side. For this connection, a pouring flow rate adjusting valve 24 for controlling the pouring flow rate from the tapping pipe 9 to the return pipe 19 and a pouring flow rate adjusting valve 24 downstream of the pouring pipe 9 are provided. A pouring flow rate sensor 25 for detecting a flow rate of hot water flowing into the return pipe 19 via the same is provided. As the pouring flow sensor 25, a turbine type flow sensor is used similarly to the incoming water flow sensor 12, and 25a denotes its rotor. Reference numeral 26 denotes a check valve. Opening / closing control of the pouring flow control valve 24 is performed by a command from the control unit 4 of the water heater 1.

The burners 7a and 7b for heating the heat exchangers 6a and 6b are gas burners using gas as fuel in the illustrated example, and the gas serving as fuel is supplied via a gas pipe 27, respectively. The gas pipe 27 is provided with a source gas solenoid valve 28 capable of shutting off gas supply.
On the downstream side of 8, the gas pipe 27 is branched into a burner 7a side 27a and a burner 7b side 27b. Branched gas pipe 27
Gas proportional valves 29 and 30 for adjusting the gas pressure to be supplied to the burners 7a and 7b are provided at a and 27b, respectively. Each of the burners 7a and 7b is provided with a plurality of combustion pipes, and the number of combustions in the combustion pipes is appropriately stepped according to the target combustion amount (four steps in the illustrated burner 7a and two steps in the burner 7b). The capacity switching valve 31 (burner 7a in the illustrated example) is configured by an electromagnetic valve so that the
3 and one for the burner 7b). The capacity switching valve 31 and the gas proportional valves 29, 3
By the operation control of 0, the combustion in the burner 7 is controlled to reach the target number commanded by the control unit 4. In addition, 32a and 32b shown in the figure indicate a blower fan of combustion air provided in the cans 33a and 33b of the water heaters 5a and 5b, 34 is a spark plug, and 35 is an extinguishing safety device. , 36 indicate burner temperature sensors.
Further, reference numeral 39 denotes a gas pressure measurement unit (measurement point) for detecting the primary gas pressure.

FIG. 3 shows an example of another embodiment of the water heater 1. In this water heater 1 ′, in particular, a water level sensor 37 for detecting the water level of the bathtub B in the reheating circuit 18.
Is provided. As for the other points, as compared with the water heater 1 of FIG. 2 described above, the point that the instantaneous water heater 5a and the water heater 5b for reheating the bath are provided in one can 33, 2 is largely different in that the bypass flow rate regulating valve 11 is not provided, but the other parts are substantially the same as those in the case of FIG. 2 described above. The description is omitted. It should be noted that the instantaneous water heater 5a and the water heater 5b for reheating the bath are provided in one can 33, so that only one blower fan 32 is provided and the flow rate is adjusted in the bypass pipe 10. Therefore, the can body temperature sensor 14 is not provided. Reference numeral 38 denotes a circulation fitting connected to the reheating circuit 18.

The water level sensor 37 provided in the water heater 1 'is disposed upstream of the circulation pump 21 in the return pipe 19 constituting the reheating circulation path 18.
As the water level sensor 37, a pressure sensor that detects the water pressure in the return pipe 19 is used, and the water level in the bathtub B is calculated according to the detected water pressure. More specifically, the water pressure detected by the water level sensor 37 changes depending on the height position at which the bathtub B is installed even when the bathtub B is set at the same water level. Control unit 4
In the calculation of the water level, the detection value from the water level sensor 37 is corrected in consideration of the change due to the height position of the bathtub B in advance.

On the other hand, the measuring device 2 includes a measuring device section 210 provided with various measuring instruments provided for each measurement point provided at each section of the water heater 1 for actual measurement, and the measuring device section 210. A data communication unit 220 that supplies the obtained actual measurement result at the measurement point to the failure diagnosis device 3.

Measuring section 210 is provided with measuring instruments (for example, a circuit meter and a gas pressure gauge) necessary for a specific failure diagnosis of water heater 1 and digitally measures an actual measurement result measured by these measuring instruments. The data is converted to data and transmitted to the failure diagnosis device 3 via the data communication unit 220. In particular, in the present invention, the measuring unit 210 includes a test rod 211a and a code 21 which constitute a part of a circuit meter.
1b is connected, and the test rod 211a is further provided with data determination operation means 222 for determining an actual value measured by a circuit meter. The data determination operation means 222 is configured to be operable only by the handle while holding the grip portion of the test rod 211a. Specifically, for example, as shown in FIG. 1, this is realized by providing a push button type switch near the tip of the grip portion.
The switch is configured to be operable only by a fingertip while holding "a". The contents of the operation performed by the data determination operation means 222 are the same as those of the code 21 as a contact signal.
The signal is transmitted to the measuring unit 210 via a dedicated transmission line (not shown) provided together with 1b, and transmitted to the failure diagnosis device 3 via the data communication unit 220. In FIG. 1, reference numeral 212 denotes a gas pipe of a gas pressure gauge provided in the measuring unit 210.

The failure diagnosis device 3 issues a device operation command for instructing the control unit 4 to perform a specific operation of each unit of the water heater, and the water heater supplied from the water heater 1 and the measuring device 2. A failure diagnosis unit 310 that takes in the operation status of each unit and the measurement result of the measuring unit 210 to diagnose an operation abnormality of each unit of the water heater, and a display unit 32 that displays the diagnosis status and the diagnosis result in the failure diagnosis unit 310
0, a command input unit 330 for inputting a command from a device inspector, and 0, and the water heater 1 and the measuring device 2
In the same manner as the above, a data communication section 340 and an audible sound generating means 350 (see FIG. 6) for generating an audible sound are provided.

Specifically, a general-purpose personal computer is preferably used as the failure diagnosis device 3. That is, each function of the failure diagnosis unit 310 is realized by a failure diagnosis program stored in a personal computer, and the display unit 320
Is realized by the screen of the personal computer.
The command input unit 330 is realized by a keyboard of a personal computer or a pen input to the display unit 320. Further, the data communication section 340 is realized by a data input / output terminal (for example, RS232C) provided in the personal computer, and the audible sound generating means 350 is realized by a buzzer function provided in the personal computer.

As shown in FIG. 1, the hot water heater 1, the measuring device 2, and the failure diagnosis device 3 are connected to each other so that data communication is possible, and the transmission line L for data communication is detachably connected. Such a system is constructed. In the illustrated example, since a general-purpose personal computer is used as the failure diagnosis device 3, the failure diagnosis device 3 and the measuring device 2 are configured separately, but they are integrally configured as dedicated devices. Is also possible.

Next, the operation of the fault diagnosis system for a water heater constructed as described above will be described.

The fault diagnosis target of this system is as follows.
While the operation of each unit of the water heater is monitored and controlled by the control unit 4 as described above, various equipment operation commands issued from the failure diagnosis device 3 to the control unit 4 specifically include:
Since all are generated in the failure diagnosis device 3 in accordance with a predetermined failure diagnosis program, if the water heater has the above functions, for example, even in a water heater of a different manufacturer, the failure diagnosis program can sufficiently cope with the water heater. It is possible. Therefore, first, this point will be briefly described.

In the present system, in view of such circumstances, first, when the system is started, a display for selecting the type of the water heater 1 to be diagnosed is displayed on the display unit 310. Here, the manufacturer is selected and a specific model number is selected, and based on the selection, a failure diagnosis program that governs the following failure diagnosis operation is selected. When the type of the water heater 1 to be diagnosed is determined in this way, the failure diagnosis device 3 sends the control unit 4 of the water heater 1
Thereafter, a device operation command is issued to the effect that the failure diagnosis operation is started, that is, the water heater 1 is switched to the failure diagnosis mode.

In parallel with this, when the water heater 1 to be diagnosed has a self-diagnosis function, after the completion of the above-mentioned format selection at the start-up of the system, the diagnosis result by this self-diagnosis function (many hot water In the case of a device, the error diagnostic code is displayed in the failure diagnosis device 3 and the self-diagnosis information is also displayed on the display unit 320. When the water heater 1 stores a past failure status (failure history), the failure history is also taken in and displayed.

When the start-up of the present system is completed in this way, a specific menu for fault diagnosis is displayed on the display unit 320. In the present embodiment, for example, a diagnosis target site of the water heater 1 is specified to make a diagnosis (individual diagnosis).
A screen is displayed for selecting whether or not to perform failure diagnosis (automatic diagnosis) for all parts of the water heater without specifying. Therefore, the above-described individual diagnosis and automatic diagnosis will be separately described below.

A. When the individual diagnosis is selected, first, a screen for requesting the specification of a part of the water heater for performing the individual diagnosis is displayed. The device inspector follows the instruction on this screen to enter the command input section 330
Is operated to specify the failure diagnosis part. By this designation, the first failure diagnosis operation (step S1 in FIG. 4) is started in the failure diagnosis device 3. Specifically, the failure diagnosis section 310 issues a device operation command for instructing a predetermined operation or a non-operation set in advance to the control section 4 in accordance with the failure diagnosis section, and the failure diagnosis section 310 Are operated or stopped, and the detection results of the sensors at that time are input to the failure diagnosis unit 310 via the control unit 4. The failure diagnosis unit 310, which has received the detection results from the sensors, detects a failure (malfunction) in the failure diagnosis part according to the failure diagnosis program.
Is determined (step S2 in FIG. 4).

In the above-described example, in the first failure diagnosis, the detection results obtained from the sensors are used as data for the failure diagnosis. Alternatively or in combination therewith, the command input unit 330 may send a sensory diagnosis result obtained by the device inspector with the action of the five senses for the failure diagnosis site.
It is also possible to input directly from. In other words, in the diagnosis of the above-mentioned failure diagnosis part, it is suitable to directly confirm with the five senses of the device inspector without using sensors (for example, confirmation of operation sound). In this case, it is because obtaining the diagnosis result of the device inspector directly contributes to quick and accurate failure diagnosis.

In the case of individual diagnosis, the first
If no abnormal operation is detected in the failure diagnosis operation, the process proceeds to step S9 in FIG. 4 to terminate the failure diagnosis. On the other hand, if an operation abnormality is detected, the process proceeds to step S in FIG.
Then, the process proceeds to 3, and the contents of the failure diagnosed in the first failure diagnosis are displayed on the display unit 320.

When an abnormal operation is detected by the first failure diagnosis, in a normal case, a display requesting the start of the second failure diagnosis operation for the failure diagnosis portion is made and the second failure diagnosis operation is started. The process proceeds (step S6 in FIG. 4),
In the present embodiment, before that, a screen requesting an instruction as to whether or not the transition to the second failure diagnosis operation is necessary is displayed on the screen (step S4 in FIG. 4). This is because depending on the failure occurrence site discovered in the first failure diagnosis or the occurrence state thereof, the failure cause can be easily determined based on the experience and knowledge of the device inspector without performing the second failure diagnosis operation described later. In such a case, the device inspector can end the failure diagnosis operation without shifting to the second failure diagnosis operation (see FIG. 4 steps S5).

Then, in step S4 of FIG.
When the selection to perform the failure diagnosis operation is made, the flow shifts to step S6 in FIG. 4 to start the second failure diagnosis operation. In the second failure diagnosis operation, the measuring device 2
Actual measurement of the measurement points using the measuring unit 210 is required. For this reason, the device inspector specifically checks the operation status of each component by connecting a circuit meter, a gas pressure gauge, and the like to an actual measurement point corresponding to the failure diagnosis site. At this time, an instruction of a measurement point to be actually measured by the device inspector is displayed on the screen. Therefore, the device inspector need only perform the actual measurement of the measurement points sequentially in accordance with the instructions on this screen, and the actually measured result is transmitted to the failure diagnosis unit 310 as digital data as appropriate. Failure diagnosis unit 3
At 10, it is determined whether or not the received data is within a proper value range for each part. If a part exceeding the proper value is found, the part is determined to be faulty, and the faulty part is displayed on the screen. Do.

As described above, in the present invention, the apparatus inspector needs special technical knowledge by proceeding from the first failure diagnosis operation to the second failure diagnosis operation in accordance with the instruction displayed on the display unit 320. Without this, it is possible to easily and quickly identify the cause of the failure only by a simple operation and a situation observation.

B. Automatic diagnosis On the other hand, when automatic diagnosis is selected, the failure diagnosis unit 31
In the case of 0, the first failure diagnosis operation is successively performed on different failure diagnosis parts sequentially according to a predetermined procedure set as a procedure for performing the automatic diagnosis (step S in FIG. 4).
1 ', S2'). That is, when the automatic diagnosis is selected, the failure diagnosis unit 310 sequentially issues a device operation command preset for each failure diagnosis part according to the above-described predetermined procedure, and each time, the first diagnosis unit 310 issues the first operation instruction. A failure diagnosis operation is performed, and if no operation abnormality is found, the flow shifts to step S9 in FIG. 4 to end the failure diagnosis. On the other hand, when an operation abnormality is found in the process, the process proceeds to step S3 in FIG. 4 to perform the second failure diagnosis operation and specify the cause of the failure, as in the case of the individual diagnosis.

In the case of the automatic diagnosis, even if no abnormal operation is found by the above-described first failure diagnosis operation, the failure diagnosis is not immediately terminated and the predetermined procedure is repeated for each failure diagnosis part. It is also possible to adopt a configuration in which the second failure diagnosis operation is performed according to the following. That is, in the above-described automatic diagnosis, the failure diagnosis ends when no operation abnormality is found, but when the quality is deteriorated even if no failure occurs, for example, deterioration of parts due to aging. This is because it is also considered useful to perform such a second failure diagnosis operation again for all the failure diagnosis parts so that early detection of such components is useful.

According to the present invention, by selecting the automatic diagnosis as described above, the same effect as in the case of individual diagnosis can be expected, and a quick and precise inspection can be performed in a periodic inspection. Becomes

Next, a description will be given of an operation for determining an actually measured value when the circuit meter of the measuring device 2 is used in the second failure diagnosis operation. That is, in the second failure diagnosis operation, for example, when a voltage is measured by a circuit meter, the detected voltage value is not stable at the beginning of the voltage measurement (actual measurement) between the terminals. Therefore, when performing the second failure diagnosis operation, it is necessary to first determine the measured value after the measured value is stabilized. The determining operation will be described below.

Embodiment 1 Specifically, when the inspector of the apparatus makes contact with the test rod 211a at a predetermined measurement point in accordance with the display on the display section 320, a screen as shown in FIG. Is displayed. That is, on the screen, an actual measurement value display icon 321 indicating the current actual measurement value is displayed, and when the actual measurement value is stabilized, an instruction to perform an operation for fixing the actual measurement value is displayed. The device inspector visually checks the display of the actually measured value display icon 321 in accordance with this screen display, waits for the actually measured value to stabilize, and waits for the test rod 211a.
The operation of the data confirmation operation means 222 provided in the. As a result of the operation, the contact signal from the data determination operation means 222 is taken into the measuring instrument section 210 and sent to the failure diagnosis device 3, and the failure diagnosis device 3 converts the actual measurement value at that time as a confirmed actual measurement result. Upon recognition, a predetermined failure diagnosis operation is started. In this case, as shown by a dotted line in FIG. 5, a selection icon 322 for confirming the actually measured value is also displayed on the screen, and the actual measured value is confirmed by the icon by the device inspector's arbitrary selection. It is also possible to have them do it.

Embodiment 2 This embodiment shows a case where the failure diagnosis device 3 is provided with an audible sound generating means 350 as in the case where it is realized by a personal computer, for example (see FIG. 6). In this case, the failure diagnosis device 3 displays the actual measurement value by the test rod 211a on the actual measurement value display icon 321 and constantly monitors the actual measurement value. (In the range of the specified value), the audible sound generating means 350 emits an audible sound. That is, since the transition to the second failure diagnosis operation is all performed by the screen display based on the failure diagnosis program, the failure diagnosis device 3 corresponds to the measurement location currently measured based on the failure diagnosis program. The specified value is read out, and the specified value is compared with an actually-measured value that is constantly input to determine whether or not the measured value is within the allowable range of the specified value. If it is determined that the measured value is within the specified range, an audible sound is immediately output to notify the device inspector that the measured value at the measurement point is normal. Thus, the device inspector can perform the actual measurement by relying only on the audible sound without looking at the actual measurement value display icon 321.

In this case, in order to prevent an erroneous operation of the data determination operation means 222 by the device inspector, when the failure diagnosis device 3 receives an actual measurement result, the audible sound generation means 350 indicates acceptance of the actual measurement value determination. A failure diagnosis program can be set in advance so as to sound an audible sound, and by doing so, the workability can be further improved.

It should be noted that the present invention is not limited to the above-described embodiment, and can be appropriately designed and changed within the scope of the present invention. That is, for example, in the above embodiment, the data confirmation operation means 222 is a push button type switch,
Other forms are possible as long as the test rod 211a can be operated with a gripper holding the gripper. Further, if it is possible for the failure diagnosis device 3 to recognize that the data determination operation means 222 has been operated, it is possible to cause the measurement device 2 to detect the contact signal. The audible sound generating means 350 is preferably provided in the measuring device 2.

Further, in the second embodiment, the audible sound is generated only when the measured value is within the specified value range. However, a different audible sound is generated even when the measured value is not within the specified value range. It is also possible to put. That is, it is possible to change the output form of the audible sound (for example, to change from an intermittent sound to a continuous sound, or to change the timbre) depending on whether or not it is within a specified value range. Thereby, it is also possible to always inform the device inspector that the failure diagnosis device 3 is operating normally.

[0048]

As described in detail above, claim 1 of the present invention
According to the invention of the above, by providing the data determination operation means for determining the actual measurement value in the circuit meter at the grip portion of the test rod of the circuit meter, the device inspector can perform the actual measurement with the circuit meter The actual measured value can be determined by operating the data determination operation means without leaving the field.

According to the second aspect of the present invention, the data determination operation means is configured to be operable with only the grip of the test rod while holding the grip portion of the test rod. The device inspector can operate the data confirmation means with the handle of the test rod while the test rod is in contact with the measurement location, so even if the measurement location is in a complicated place, the actual measured value can be easily determined. It can be performed.

Further, according to the third aspect of the present invention, while the data processing device constantly monitors the actual value measured by the circuit meter,
The audible sound is generated from the audible sound generating means when the actual measured value is within the range of the specified value and when the data confirmation operation means is operated. It is possible to judge whether the measured value is normal or not, and the workability is improved,
Operability can be improved by preventing erroneous operation.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a schematic configuration of a water heater failure diagnosis system to which a circuit meter output data processing system according to the present invention is applied.

FIG. 2 is a schematic configuration diagram showing an example of a configuration of a water heater used in the failure diagnosis system.

FIG. 3 is a schematic configuration diagram showing an example of another configuration of the water heater used in the failure diagnosis system.

FIG. 4 is a flowchart showing a failure diagnosis procedure in the failure diagnosis system.

FIG. 5 is an explanatory diagram for explaining an operation for determining an actually measured value of the circuit meter in the failure diagnosis system.

FIG. 6 is an explanatory diagram for explaining another form of the operation of determining the actually measured value of the circuit meter in the failure diagnosis system.

FIG. 7 is an explanatory diagram illustrating an operation for determining an actually measured value of a circuit meter in a conventional failure diagnosis system.

[Explanation of symbols]

 1, 1 'water heater 2 measuring device 210 measuring device section 211a test rod 220 data communication section 222 data determination operation means 3 failure diagnosis apparatus 310 failure diagnosis section 320 display section 330 command input section 340 data communication section 350 audible sound generating means 4 Control unit 6 Heat exchanger 7 Burner B Bathtub

Claims (4)

[Claims] 1. A system comprising a circuit meter and a data processing device connected to the circuit meter for taking in the actual measurement result and processing the measured result. A data determination operation means for determining a value, wherein an operation of the data determination operation means causes the data processing device to recognize an actual measurement value at the time of the operation as a confirmed actual measurement result, Data processing system. 2. The output of the circuit meter according to claim 1, wherein the data determination operation means is configured to be operable only by the handle while holding the grip portion of the test rod. Data processing system. 3. The data processing device constantly monitors an actual measurement value of a circuit meter, generates an audible sound when the actual measurement value is within a specified value range, and operates the data determination operation means. 3. The circuit meter output data processing system according to claim 1, further comprising an audible sound generating means for generating an audible sound notifying that the operation has been received. 4. A failure diagnosis system for a water heater comprising a water heater and a failure diagnosis device for diagnosing a failure of the water heater, wherein the failure diagnosis device detects an operation state of each part of the water heater. When the meter is connected, the gripping portion of the test bar of the circuit meter is provided with data determination operation means for determining the actual measurement value of the circuit meter, and the actual operation at the time of the operation is performed by operating the data determination operation means. A failure diagnosis system for a water heater, wherein the value is recognized by the failure diagnosis device as a determined actual measurement result, and the failure diagnosis device performs a failure diagnosis of the water heater based on the recognized actual measurement result.