JPH04191671A - Apparatus for diagnosing simple electromechanical apparatus - Google Patents

Abstract

PURPOSE:To easily alter a program and to achieve miniaturization by successively driving a sensor on the basis of the data of an IC card to measure a measuring point and performing analysis on the basis of the measured data according to the normal value read from the IC card and trouble analyzing procedure. CONSTITUTION:The program and data of a program IC card are inputted through an IC card reader 3. Next, a voltage detector 25 is driven on the basis of the inputted data to display measured data on a liquid crystal display device 7. Subsequently, analysis is executed on the basis of the measured data according to the trouble analyzing procedure and normal value read from the IC card. When there is an inferior place, this place is displayed on the liquid crystal display device 7. By this method, even when the object of trouble diagnosis is altered, correspondence can be taken only by replacing the IC card.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to diagnosis of electro-mechanical devices such as power supply control devices, speed control devices, and cargo handling control devices in industrial machines such as battery forklifts and construction machines. It is related to the device. BACKGROUND OF THE INVENTION As a conventional diagnostic device for electro-mechanical devices or electrical devices, for example, a diagnostic device is disclosed in Japanese Patent Application Laid-Open No. 6149266. This diagnostic device includes a computer that operates peripheral devices according to a predetermined processing procedure, an input device that inputs information to the computer as necessary, and
A display device that displays the contents of intermediate data and result data processed by the computer as necessary, a recording device that prints out the contents of the processing of the computer and the contents of the display device as necessary, and diagnostic work. a diagnostic task processing procedure storage means that stores the processing procedure of the diagnostic task; a diagnostic task data storage device that stores data necessary for the diagnostic task;
A customer/warehousing layer data storage means that stores data regarding the customer and data regarding the warehousing layer of the vehicle to be diagnosed, a measuring device including various sensors to be attached to the diagnostic parts of the vehicle to be diagnosed, and a measuring device that is necessary for the diagnosis work. A remote control box for giving instructions from the serviceman to the computer or from the computer to the serviceman, and a remote control box connected between the measuring device, the remote control box, and the computer to transmit signals between these three parties. With the above configuration, when the service engineer attaches the sensor of the measurement device to the device to be diagnosed and inputs the necessary information from the input device, the computer follows the instructions and executes the diagnostic work processing procedure. Pull out the necessary inspection methods and items from the storage means,
This is displayed on the display device, and the service engineer performs a predetermined measurement according to the displayed content, and the measured value from the measuring device is compared by the computer with the reference value for the measurement item stored in advance in the data storage means. , it is determined whether the measured value is normal or abnormal, and the determination result is displayed on the display device. In this way, the predetermined diagnostic items are diagnosed one after another, and abnormal areas are adjusted, corrected, and parts replaced.Finally, it is confirmed that the areas are normal, and the results are evaluated. It is printed out using a recording device as necessary.

Problems to be Solved by the Invention However, in conventional diagnostic equipment, the computer extracts and displays the necessary inspection methods and items from the diagnostic work processing procedure storage means, which requires a large amount of memory and requires a large size. Therefore, it was difficult for the user to transport the diagnostic equipment and carry out the diagnosis. Also,
If the equipment to be diagnosed changes, a service person cannot handle the change, and the contents of the diagnostic procedure storage means must be changed each time by a computer expert, which takes time and effort.

The present invention solves the above-mentioned problems, and aims to provide a simple electric-mechanical device diagnostic device that facilitates changing data and programs depending on the target device and is more compact. It is something.

Means for Solving the Problems In order to solve the above problems, the simple electro-mechanical device of the present invention includes a plurality of sensors that perform required measurements at measurement points of the electro-mechanical device, IC card reading means, The display means and the IC card reading means are driven to input data of the sensor to be measured, its normal value, and a failure analysis procedure stored in advance in the IC card, and the data specified by the IC card is inputted. failure diagnosis means for sequentially driving the sensors to measure the measurement points, performing analysis according to the failure analysis procedure and its normal value based on the measurement data, and outputting the results to the display means; It is prepared.

A second invention adds an IC card writing means to the structure of the first invention, and causes the failure diagnosis means to write at least one of the measured data and the analyzed failure diagnosis result data to the IC card.
This device has an added function of writing to an IC card using a card writing means.

Further, a third invention is one in which a communication means is added to the configuration of the first invention or the second invention to output at least one of the measured data and the analyzed failure diagnosis result data to the outside as data.

Effect: With the configuration of the first invention, the sensors designated by the IC card data are sequentially driven to measure the measurement points, and the measurement data is used to analyze the normal values read from the IC card and the failure analysis procedure. and outputs the results to the display means. Therefore, even if the target device is changed, the service person can simply replace the IC card, and the diagnostic device can use the IC card as part of its memory, making it compact.

Further, according to the configuration of the second invention, at least one of the measured data and the analyzed failure diagnosis result data is written to the IC card and saved as data.

Furthermore, according to the configuration of the third invention, at least one of the measured data and the analyzed failure diagnosis result data is outputted to the outside as data, so that the higher-level controller can perform more advanced diagnosis, estimate the cause of failure, present countermeasures, etc. It becomes possible.

Example Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a front view of a diagnostic device for a simple electro-mechanical device according to an embodiment of the present invention, and FIG. 2 is a schematic diagram showing connections with the electro-mechanical device.

On the front of the diagnostic device l, there is an IC card driver (hereinafter referred to as "driver") set as a reader by software for the IC card 2, which stores a program consisting of sensors to be measured, their normal value data, and failure analysis procedures. (hereinafter referred to as an IC card reader) 3 and an IC card driver (hereinafter referred to as an IC card writer) set in a software writer for an IC card 4 that records measured data and analyzed failure diagnosis result data. 5, a numeric keypad switch 6, a liquid crystal display 7, a power switch 8, and an electronic buzzer 31 that confirms the input of the numeric keypad switch 6 and notifies the diagnosis result. The numeric keypad switch 6 has 10 number keys 10,
In addition to the (decimal point) key 11, the C key 12 is used to cancel input values and return to the previous screen on the liquid crystal display 7, the ST flat key 3 is used to start measurement, and to input when changing standard values; It consists of a △ key 14 and a key 15 used for rolling up and down the screen, and a CR key 16 for confirming data input from the above keys.

Further, the connection between the diagnostic device 1 and the electric device 18 of the battery forklift 17 is made by connecting the cable 21 of the intercepting type to the existing connector 20 of the board 19 of the electric device 18, as shown in FIG. Connect cable 22 to cable 2
Connect the cable 21 to the connector 23 of the diagnostic device 1.
This is done by connecting to the connector 24 provided on the side of the.

As shown in the configuration diagram of FIG.
1 is connected, and includes a plurality of voltage detectors 25 that are sensors, an analog-to-digital converter 26 that converts the voltage detection signals of the voltage detectors 25 into digital data, and a control device 27 that includes a microcomputer. and a communication device 28 that communicates with a fault diagnosis device 30 that is a host computer, and a control device 27 that includes an IC card reader 3, an IC card writer 5, a numeric keypad switch 6, a liquid crystal display 7, and a power source. A switch 8, an analog-to-digital converter 26, and a communication device 28 are connected.

The communication device 28 is equipped with an R3-232C interface, and is connected to an upper-level failure diagnosis device 30 via a communication cable 29 of R3-232C specifications to perform data communication. Further, the control device 27 stores screen data of the liquid crystal display 7 in advance.

The operation of the control device 27 of the diagnostic device 1 will be explained with reference to the flowchart in FIG. 4 and the screen display diagram in FIG.

First, when power switch 8 is turned on (step -1)
Step 2: Check whether the IC cards 2 and 4 are set in the IC card reader 3 and IC card writer 5.
), if it is not set, a message indicating that it is not set will be displayed on the LCD display 7. Step-3), IC card 2,
When 4 is set, the operation mode screen shown in FIG. 5(a) is displayed (step-4). Then, check whether there is a communication request from the upper-level failure diagnosis device 30 (Step-5). If there is no communication request, confirm the end here (Step-6); if not, press the numeric keypad switch 6).
The operation mode is selected by operating the numeric keys 10 "1 to 4" and the CR key 16 (step-7). In step-6, if the process is to be terminated, it is confirmed that the power switch 8 is turned off and the process is terminated.

Now, assume that the diagnostic mode is selected in step-7. First, display the measurement date and time input screen shown in FIG. When data is input (step-IO), the program name of the target model shown in FIG. 5(C) is displayed (step-11). It is confirmed that the model is compatible, and then press numeric key 10 "I" and CR main key 6 to confirm YES.
When "S" is input (step-12), the warning screen shown in FIG. 5(d) is displayed.
The subdivided target model names shown in Figure (e) are displayed (step-14). If the date and time of measurement is not entered in Step-9, or if No is entered in Step-12 by operating the number key lO "2" and CR primary key 6, the operation mode screen in Step-4 will be displayed. return. When the target model name is selected by operating the numerical keys 10' 1 to 4" and the CR primary key 6 (step-15), the screen shown in FIG. 5(f)
Display the serial number input screen shown in (Step-16)
. When the serial number is input by operating the numeric key 1O and the CR primary key 6 (step 17), a screen will be displayed to confirm the presence or absence of the cargo handling chopper and attachments shown in Figure 5 (g). is the number key IO"1゜2"
is input by operating the CR primary key 6 (step-19).
), the screen shown in FIG. 5(h) for confirming the data input so far is displayed (step-20). Numeric key lO
When YES is input by operating "1" and CR primary key 6 (step-21), the measurement item is set and step-2
2) Display the measurement start screen shown in Fig. 5(i) (the screen shows a body leak check as a measurement item).Step-23) Start is input by operating the ST flat key 3. (Step-24), and drive the voltage detector 25 according to the input data.Step-25
), displays the measurement data and also displays the IC card writer 5.
Performs measurement processing to write to the IC card 4 (Step-26), then performs analysis according to the failure analysis procedure and normal values read from the IC card 2 using the measurement data (Step-27), and identifies the defective location. Check whether there is (step-28). If there are no defective parts, check whether all measurement items have been measured (Step 29); if not, return to Step 22 and set the next measurement item. In step-28, if there is a defective part, the result is displayed as shown in FIG. 5(j) and is written into the IC card 4 (step-30). Fifth
"RO20" on the screen shown in Figure (j) indicates the description number of the manual attached to the diagnostic device I. Using this description number, the service engineer searches the manual and learns the cause of the failure.
We can carry out repairs. Next, when the C key 12 is input (step-31), the process returns to step-23 and asks whether to perform re-measurement using the same measurement item. When the C key 12 is input in step 24, the previous measurement items are reset and the measurement start screen shown in Figure 5(i) is displayed.In step 32), the start is started by operating the ST flat key 3. When inputted (step-33), the process returns to step-25 and the measurement is performed using the previous measurement item. C at step-33
When key 12 is input, or when it is confirmed in step-29 that all measurement items have been measured, or in step-21
If NO is input, the screen returns to the operation mode screen display in step-4. If a defect is detected after the analysis is completed, the electronic buzzer 31 will sound three times to notify the defect, and if no defect is detected and the next item is set and displayed, the electronic buzzer 31 will The buzzer 31 will beep twice to notify you that the next measurement item has been displayed. Also, if you press the △ key 14 or key 15, if there are any other faulty messages, they will be displayed on the LCD display 7. Display on screen.

With the above-mentioned diagnosis mode, a service person can perform a failure diagnosis simply by setting the IC cards 2 and 4 corresponding to the target electric device 18, and even if the target electric device 18 is changed, the IC card 2, 4゜It is possible to respond in a short time by simply replacing the ゜4.In addition, the diagnostic device 1 can use the IC cards 2 and 4 as part of the memory, making it possible to make it more compact. Since the measurement data and analysis results are written to the IC card 4, they can be stored as data for a long time without much effort.

In step-7, the data modification mode is selected.14
- If selected, the measurement condition number input screen shown in FIG. 5(k) is displayed (step-34), and when the C key 12 is input (step-35), the screen returns to the operation mode screen,
The diagnostic program condition number (L
INE) is input (step-36), the screen shown in Fig. 5 (
Display the data for this condition shown in 1) (Step-3
7). And the maximum value (MAX) used for this condition,
The minimum value (MIN) condition is numeric key IO and CR primary key 6
When input by the operation (step-38), it is overwritten and corrected (step-39). When C key 12 is input (
The measurement condition number in step-40) and step-34 returns to the input screen display.

Furthermore, when the monitor mode is selected in step-7, an input screen for the number (channel CH) of the voltage detector 25 shown in FIG. 5(m) is displayed (step-41).
, when the C key 12 is input (step-42)
, returns to the operation mode screen, and when the number of the voltage detector 25 is input by operating the number key lO (step-43), the voltage detector 25 is driven (step-44) and its measurement data is displayed. (Step-45). C key 12
When the number is input (step-46), the screen returns to step-41 for inputting the voltage detector number.

Furthermore, in step-7, when the initialization mode of the IC card 2.4 is selected, the initialization mode screen shown in FIG. 5(n) is displayed.
” When YES is input by operating B and CR primary key 6 (
Step-48), initialize the IC cards 2 and 4 (
Step-49). If No is input in step-48, the screen returns to the operation mode screen, and step-4
When the C key 12 is input after 9 (step-5)
0), the process returns to the initial mode screen display in step-47.

Further, in step-5, when the communication request is confirmed, the remote mode is selected and the operation is switched to the upper-level failure diagnosis device 30 shown in FIG. 5(0) (step-5).
51), and then operates according to a signal from the failure diagnosis device 30 (step-52). When the upper-level failure diagnosis device 30 disconnects communication (step-53), the screen returns to the operation mode screen.

In this way, by selecting the data correction mode, monitor mode, or initialization mode, you can correct the setting data and monitor the voltage at the specified location with simple operations, and you can also initialize the IC card 2゜4. Is it possible to do this? In addition, in remote mode, by connecting to the fault diagnosis device 30 of the host computer, operating the diagnosis device 1 by the fault diagnosis device 30, and inputting measurement data, more advanced fault diagnosis, estimation of the cause of failure, and countermeasures can be performed. It becomes possible to present the following information.

Effects of the Invention As described above, according to the present invention, the sensors designated by the data on the IC card are sequentially driven to measure the measurement points, and the normal values read from the IC card and the failure analysis procedure are determined based on the measurement data. By performing the analysis and outputting the results to the display means, even if the target device is changed, the service engineer can diagnose the failure in a short time by simply replacing the IC card. Furthermore, the diagnostic device can use an IC card as part of the memory, making the device more compact.

Further, according to the configuration of the second invention, at least one of the measured data and the analyzed failure diagnosis result data can be written to the IC card and saved as data.

Further, according to the configuration of the third aspect of the invention, the analyzed failure diagnosis results can be outputted to the outside as data, so that a higher-level controller can perform more advanced diagnosis, estimate the cause of failure, present countermeasures, etc.

[Brief explanation of the drawing]

The drawings are drawings showing an embodiment of the diagnostic device for a simple electro-mechanical device of the present invention, in which FIG. 1 is a front view, FIG. 2 is a schematic diagram showing connection with an electro-mechanical device, and FIG. 3 is a control configuration diagram, FIG. 4 is a flowchart explaining the operation, and FIG. 5 is a screen display diagram. ■...Diagnostic device, 2...IC card (for program), 3...IC card reader, 4...IC card (
data), 5... IC card writer, 6... Ten-l 8- key switch, 7... Liquid crystal display, 17... Battery/forklift, 18... Electrical equipment, 25...・
Voltage detector, 27...Control device, 28...Communication device, 30...Upper-level failure diagnosis device.

Claims (1)

[Scope of Claims] 1. A plurality of sensors that perform required measurements at measurement points of an electro-mechanical device, an IC card reading means, a display means, and driving the IC card reading means to read the IC card from the IC card. The sensor to be measured and its normal value data and failure analysis procedure stored in advance in the card are input, and the sensors specified by the IC card are sequentially driven to measure the measurement point. A diagnostic device for a simple electro-mechanical device, comprising a failure diagnosis means for performing an analysis according to the failure analysis procedure and its normal value based on the data, and outputting the result to the display means. 2. The IC card writing means is provided, and the failure diagnosis means is provided with a function of writing at least one of measured data and analyzed failure diagnosis result data into the IC card by the IC card writing means. Diagnosis device for simple electro-mechanical equipment. 3. A diagnostic device for a simple electro-mechanical device according to claim 1 or 2, which is equipped with a communication means for outputting at least one of measured data and analyzed failure diagnosis result data to the outside as data. .