JPH0618621A - Measuring method for electronic apparatus - Google Patents

Abstract

PURPOSE:To perform measurement quickly after setting of a plurality of input conditions. CONSTITUTION:An interface device 2 is connected to an object electronic device 1 to be measured. The operating state is measured in accordance with the input conditions, which are led out of an analog Ch output line 14 through a plurality of channels. The lead-out of the signal from the interface device 2 is performed under the control of a personal computer 3. For the input conditions, for which feedback adjustment is required, the output value of the analog Ch output line is fed back and inputted with an analog Ch input line 15. The personal computer 3 performs the feedback adjustment only for the input conditions, which are specified for the requirement of the feedback adjustment, in the file of preset conditions in a file device 4. Therefore, the setting of the entire input conditions can be performed quickly, and the operating state of the object electronic apparatus 1 to be measured can be measured in a short time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a measuring method for an electronic device using an automatic debug device or the like for judging whether or not a desired operating state is achieved by the electronic device under a specified input condition.

[0002]

2. Description of the Related Art Conventionally, in an electronic control device or the like which has a built-in electronic device, in particular, a microcomputer or the like, and which performs various controls in response to signal inputs from various sensors and the like, an error in a program for mounting the microcomputer is detected. In order to correct it, an automatic debug device or the like is used. The automatic debug device sequentially derives output signals from a plurality of channels (hereinafter, sometimes abbreviated as “Ch”), and the output signals of all the channels match an input condition designated by an electronic device. After adjusting so that the operating state of the electronic device is measured. For the output signal of each channel, a signal that changes in relation to the output signal is measured to determine whether or not the designated input condition is achieved. When the specified input condition is not achieved, the input signal is changed to change the output signal, and the feedback adjustment is performed so that the specified input condition is satisfied.

FIG. 19 shows a measuring method of an electronic device using a conventional automatic debug device. The process is started from step s1, and in step s2, the setting condition file is loaded to read the setting condition to be set as the designated input condition from the file device. The designated input condition is set for each of the plurality of channels in a predetermined order for each channel.

In step s3, the final channel (Ch)
It is determined whether or not the setting of is completed. If it is not the final channel, the process proceeds to step s4, and it is determined whether the input condition has reached the set value of the channel. When the set value has not been reached, the input signal is adjusted in step s5, the process returns to step s4, it is determined whether or not the set value is reached, and feedback adjustment is performed.

When it is determined in step s4 that the input condition reaches the set value, the process returns to step s3 to set the next channel. When it is determined that the channel is the final channel in step s3, it means that the input conditions for all channels have been set, the operation state of the electronic device is measured in step s6, and the process ends in step s7.

As described above, the feedback adjustment for each channel is performed because the output signal from the automatic debug device is not necessarily an accurate set value as an input condition because of the influence of the input impedance of the electronic device to be measured. It is not always possible to obtain it. The number of feedback, usually to prospect more than 20 times, for example. If the output signal cannot be set within the specified input condition range even after this number of times is exceeded, adjustment is impossible and the electronic device determines that the operation is defective. Generally, the output signal is set in a desired range with a shorter number of times of feedback, but the number of times may exceed the expectation due to the influence of delicate noise of hardware.

[0007]

In the conventional measuring method for electronic equipment using automatic debugging or the like, feedback adjustment is performed for all output signals, all input conditions are set, and the operating state of the electronic equipment is set. measure. Feedback adjustment requires time because it needs to perform the feedback operation at least twice with respect to one input condition. Therefore, when it is necessary to measure a specific operation state of the electronic device at a delicate timing with a change in a specific input condition as a starting point, there is a possibility that the measurement cannot be performed at a desired delicate timing. The output signal from the automatic debug device or the like is set within a certain error range according to the input signal, and feedback adjustment is not necessary depending on the input condition. Making feedback adjustments for unwanted input conditions can hinder rapid measurement.

An object of the present invention is to provide a measuring method for an electronic device which can quickly measure the operating state after setting a plurality of input conditions.

[0009]

According to the present invention, an adjusting device is connected to an electronic device to be measured, input signals for setting input conditions are sequentially given to the adjusting device, and an output signal from the adjusting device is output. In an electronic device measurement method that sets multiple input conditions and measures the operating state, specify whether feedback adjustment is necessary in advance for each input condition, and only set the input conditions that require feedback adjustment when setting each input condition. A measuring method for an electronic device, comprising: inputting an input signal to an adjusting device, measuring an input condition derived as an output signal, and adjusting the input condition to be an input condition to be set.

Further, according to the present invention, an adjusting device is connected to an electronic device to be measured, input signals for input condition setting are sequentially given to the adjusting device, and a plurality of input conditions are output as output signals from the adjusting device. In an electronic device measuring method for setting and measuring the operating state, the order of setting input conditions and the necessity of feedback adjustment for each input condition are specified in advance, and the input condition is set in the adjusting device in the specified order. For input conditions that require a feedback adjustment, apply the input signal to the adjusting device, measure the input conditions that are derived as output signals, and adjust the input conditions to be set. Is a measuring method of an electronic device.

[0011]

According to the present invention, the adjusting device is connected to the electronic device to be measured. An input signal for input condition setting is sequentially given to the adjusting device, and a plurality of input conditions are sequentially set as output signals. The necessity of feedback adjustment is designated in advance for each input condition. At the time of setting each input condition, only for an input condition that requires feedback adjustment, the input signal is given to the adjusting device, the input condition derived as the output signal is measured, and the input condition to be set is adjusted. After the setting of all input conditions is completed, the operating state of the electronic device is measured. For input conditions that do not require feedback adjustment, the input conditions can be set quickly, so the entire input condition setting can be completed quickly, and the operation of electronic devices can be performed in a short time after the setting of the input conditions is completed. The state can be measured.

Further, according to the present invention, before the adjusting device is connected to the electronic device to be measured and the plurality of input conditions are sequentially set, the order of setting the input conditions and the input conditions are set. The necessity of feedback adjustment is designated in advance. Input signals for input condition setting are given to the adjustment device in the specified order. Regarding the input condition designated as necessary for the feedback adjustment, the input signal is supplied to the adjusting device, the input condition derived as the output signal is measured, and the input condition to be set is adjusted. For input conditions that should be adjusted accurately, by specifying feedback adjustment and setting it before the input condition that should be the starting point for operation measurement, the electronic device should be set in a short time after setting the input condition that should be the starting point. It is possible to measure the operating state.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a schematic electrical configuration for measuring electronic equipment according to an embodiment of the present invention. The measurement target electronic device 1 is, for example, a vehicle-mounted electronic control device (abbreviation “ECU”). The input condition is set by connecting the interface device 2 which is the adjusting device. The interface device 2 is connected to the personal computer 3, and the input condition to the measurement target electronic device 1 is set by the output signal from the personal computer 3. The measurement result of the interface device 2 is given to the personal computer 3 as an input signal. A fixed disk device or the like is connected to the personal computer 3 as the external file device 4. In the file device 4, a setting condition file in which the input condition to be set in the measurement target electronic device 1 is stored is formed.

The electronic device 1 to be measured includes a CPU board 10 including a central processing unit (hereinafter abbreviated as "CPU") and a peripheral circuit board 11. The interface device 2 includes an interface circuit (hereinafter, “I
/ F "is abbreviated. ) A unit 12 and an input / output circuit (hereinafter abbreviated as "I / O") unit 13 are included. From the I / F unit 12, a plurality of analog Ch
The output line 14 is taken out and connected to the peripheral circuit board 11. The analog Ch output line 14 is an analog Ch
The input line 15 is fed back to the I / F unit 12. Further, the plurality of pulse Ch input / output lines 18 and the digital Ch input / output lines 19 are connected to the peripheral circuit board 11. From the CPU board 10, a digital data input line 16 is connected to the I / F unit 12. The personal computer 3 is provided with a display screen 17 and displays the contents of the setting condition file read from the file device 4 and the like.

FIG. 2 shows the format of the setting condition file formed in the file device 4 shown in FIG. The setting condition file contains channels Ch0 and C for each of a plurality of measurement steps.
A set value as an input condition and presence / absence of feedback (hereinafter also abbreviated as "F / B") adjustment are set for each of h1, Ch2, ....

FIG. 3 shows a setting screen 20 displayed on the display screen 17 shown in FIG. For example, step STEP
For 1, analog input is + B, PM, TH
W and THA are set, NE and SPD as pulse input
Is set. Here, + B indicates the battery voltage, and P
M indicates the air pressure in the intake pipe, THW indicates the water temperature, T
HA indicates the intake air temperature. These are set as analog voltage levels. Further, NE as a pulse signal indicates the number of revolutions and SPD indicates the vehicle speed. For these, the number and speed of pulses are set. Since the voltage of the battery mounted on the automobile fluctuates drastically, it is important to confirm the operation of the electronic control unit or the like at each expected voltage position. For this reason, feedback adjustment is performed for + B, and feedback adjustment is not specified for other input conditions. Such setting of the necessity of feedback adjustment is performed by switching the screen display to another display window and displaying the specified result like the F / B adjustment necessity display 21. On such a setting screen 20, it is determined whether or not the F / B adjustment is performed.

FIG. 4 shows an example of contents of the setting condition file, and FIG. 5 shows a measuring method according to the setting condition. According to the setting condition file formed in the file device 4 shown in FIG. 4, the F / B adjustment 22 is performed for + B and the input condition setting 23 is performed. For the other input conditions PM, THW, THA, only the setting 23 is performed. When the setting 23 ends for all input conditions, measurement 24 is performed.

FIG. 6 shows a method of setting input conditions. It starts from step a1, and at step a2, the setting screen 20 shown in FIG. 3 is displayed. At step a3, the set value is input. At step a4, it is determined whether the signal has an F / B function. When it is determined that the signal has the F / B function, "F / B present" is determined in step a5.
To the file. When it is determined that the signal does not have the F / B function, "no F / B" is written in the file in step a6. Next, in step a7, the setting value is written in the file, in step a8 the setting condition file is saved in the file device 4, and in step a9, the process ends. As a result, a setting condition file as shown in FIG. 4 is formed.

FIG. 7 shows the measuring operation shown in FIG. Starting from step b1, the setting condition file is loaded at step b2. At step a3, it is determined whether or not the final channel has been reached. If the signal has not reached the final channel, it is judged in step b4 whether or not the signal is a signal designating the F / B function. When the F / B function is designated, it is determined in step b5 whether or not the set value has been reached. If it has not reached the set value, adjustment is made in step b6, and the process returns to step b5 again. In this way, the feedback adjustment in steps b5 and b6 is performed until the set value is reached. If it is not determined in step b4 that the signal has the F / B function, the set value is immediately output in step b7. Step b
7 or when the feedback adjustment in steps b5 and b6 is completed, the process returns to step b3. When it is determined in step b3 that the channel is the final channel, the operation state is measured in step b8, and the process for the measurement step is ended in step b9.

FIG. 8 shows a schematic electrical configuration for performing a measuring method according to another embodiment of the present invention. This embodiment is similar to the embodiment shown in FIG. 1, and the corresponding parts are designated by the same reference numerals. It should be noted that the file device 4 is formed with a setting step file that specifies the necessity of feedback control for each measurement step.

FIG. 9 shows the format of the setting step file, FIG. 10 shows the setting screen, FIG. 11 shows the stored contents of the setting step file, and FIG. 12 shows the measuring operation. In this embodiment, the input condition is set and the electronic device 1 to be measured is set.
The necessity of feedback adjustment is designated for each step in which the operating state of is to be measured. In the setting screen 30 shown in FIG. 10, in the first measurement step, YES is set to F / B in order to specify that feedback adjustment should be performed after setting the signal name and the setting value respectively. . In this way, the file device 4 shown in FIG.
A setting step file in which YES is specified for the first measurement step and NO is specified for the second measurement step is formed in the. In the measurement shown in FIG. 12 according to this setting step file, the F / B adjustment 22 is performed in the measurement step 1 to set the input condition 2
3 and set the input condition for the second step 2
Do only 3. After such setting 23 is completed, measurement 24 is performed.

FIG. 13 shows a process for designating the necessity of feedback adjustment in the setting step file. Step c
Starting from 1, in step c2, the setting step file shown in FIG. 11 is read. At step c3, the designated step screen is displayed on the setting screen 30 shown in FIG. At step c4, it is judged whether or not the F / B adjustment is performed.
When F / B adjustment is necessary, at step c5, "F / B adjustment"
"Yes" is written to the file. When there is no need for F / B adjustment, "No F / B" is written to the file at step c6. The setting step file set in this way is saved at step c7. , And the processing ends at step c8.

FIG. 14 is a flow chart showing the measuring operation shown in FIG. The process starts at step d1, and at step d2, the interval between the first step and the final step to be measured is designated. At step d3, it is determined whether or not the final step has been reached. When the final step has not been reached, it is determined in step d4 whether or not the step has designated the F / B function. When it is determined that the step is one in which the F / B function is designated, the F / B adjustment is performed in step d5. In steps that do not specify the F / B function,
At step d6, the set value is output. Then step d
The measurement is performed in step 7, and the process returns to step d3 to measure the next step. When the final step is determined in step d3, the measurement is ended in step d8.

FIG. 15 shows a schematic electrical configuration for performing measurement according to still another embodiment of the present invention. This embodiment is similar to the embodiment shown in FIG. 1, and corresponding parts are designated by the same reference numerals. It should be noted that a setting condition file and an output order file are formed in the file device 4. The setting condition is created for each step to be measured, and the input condition is set in the order of the channels in the step where the output order is not created in the corresponding step. In the step in which the output order is set, the output from the channels is set in the set order.

FIG. 16 shows the setting status of the output order file, FIG. 17 shows the order in which the input conditions are set, and FIG.
Shows the measurement operation according to the embodiment shown in FIG. In the setting screen 40 shown in FIG. 16, as input conditions, + B for A0, PM for A1, and THW for A2 are set as analog signals. As a pulse signal, NE of P0, SPD of P1
Etc. are set. As digital signals, D0 idle signal (IDL), D1 air conditioner (A / C) signal, D
2 start (STA) signal or the like is set. In addition,
The digital signal represents a digital value. On the setting screen 40, the output order is input for each signal. In this way, each signal is output in the set output order as shown in FIG. By thus setting the NE output last, the measurement can be started after the waiting time of 3 seconds which is designated in advance from the NE output.

The measurement shown in FIG. 18 starts at step e1 and loads the output order file at step e2. At step e3, it is determined whether the measurement step is the final step. When it is not the final step,
At step e4, the setting condition file for the measurement step is loaded. In step e5, it is determined whether or not the output order file step previously loaded matches. When they match, the process proceeds to step e6, the output order is searched, and the output of the corresponding channel is set in step e7 according to the set order. In step e8, it is determined whether or not the final output order has been reached. If not, the process returns to step e6.

If it does not match the step of the file in the output order at step e5, normal channel order output is performed at step e9. Next, in step e10, the process moves to the next measurement step and returns to step e3. When the final step is determined in step e3, the process ends in step e11. According to this embodiment, the output order can be changed for each channel. When the type of output signal is assigned to each channel, for example, changing from an analog signal to a pulse signal becomes difficult due to a change in hardware. On the other hand, it is easy to change the output order.

In each of the above embodiments, the vehicle-mounted electronic control device is described as the measurement target electronic device 1, but it goes without saying that it may be another electronic device. Further, although the interface device 2 is controlled by the personal computer 3, it goes without saying that it may be configured integrally.

[0029]

As described above, according to the present invention, of the plurality of input condition settings, the feedback adjustment is performed only for the input condition which is designated in advance as requiring the feedback adjustment. For input conditions that do not require time-consuming feedback adjustment, the set value is derived only once as an output signal, so the setting time can be greatly shortened compared to the input condition for performing feedback adjustment. Therefore, it is possible to perform sufficient measurement even in an operating state where the measurement interval is short.

Further, according to the present invention, the order of setting the input conditions and the necessity of feedback adjustment for each input condition can be designated in advance. As a result, it becomes easy to measure the operating state of the electronic device after the designated time has elapsed, starting from the change in the specific input condition. Further, for input conditions for which feedback adjustment is not performed, it is possible to set conditions quickly, so that it is possible to cope with more complicated measurement use in combination with changing the order.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic electrical configuration for carrying out a measuring method according to an embodiment of the present invention.

FIG. 2 is a diagram showing a setting condition file format.

3 is a diagram showing a setting screen for forming the setting condition file shown in FIG.

4 is a diagram showing the contents of a setting condition file shown in FIG.

5 is a block diagram showing an operation according to the embodiment shown in FIG. 1. FIG.

FIG. 6 is a flowchart showing an operation of forming a setting condition file having the configuration shown in FIG.

FIG. 7 is a flowchart showing a measuring operation according to the embodiment shown in FIG.

FIG. 8 is a block diagram showing a schematic electrical configuration for carrying out a measuring method according to another embodiment of the present invention.

9 is a diagram showing a format of a setting step file shown in FIG.

10 is a diagram showing a setting screen for setting a setting step file in the embodiment shown in FIG.

11 is a diagram showing the contents of a setting step file formed by the setting screen shown in FIG.

12 is a block diagram showing a measurement operation according to the setting condition file shown in FIG.

13 is a flowchart showing an operation of forming a setting step file according to the embodiment shown in FIG.

14 is a flowchart showing a measuring operation according to the embodiment shown in FIG.

FIG. 15 is a block diagram showing a schematic electrical configuration for carrying out a measuring method according to still another embodiment of the present invention.

16 is a diagram showing a setting screen for forming the output sequence file shown in FIG.

17 is a time chart showing a measurement operation performed according to the output sequence file shown in FIG.

18 is a flowchart showing a measuring operation according to the embodiment shown in FIG.

FIG. 19 is a flowchart showing a conventional measurement operation.

[Explanation of symbols]

 1 electronic device to be measured 2 interface device 3 personal computer 4 file device 10 CPU board 11 peripheral circuit board 12 I / F unit 13 I / O unit 14 analog Ch output line 15 analog Ch input line 16 digital data input line 18 pulse Ch input Output line 19 Digital Ch input / output line 20, 30, 40 Setting screen 22 F / B adjustment 23 Setting 24 Measurement

Claims (2)

[Claims] 1. An adjusting device is connected to an electronic device to be measured, an input signal for input condition setting is sequentially given to the adjusting device, and a plurality of input conditions are set as output signals from the adjusting device, In the measuring method of electronic devices for measuring the operating state, the necessity of feedback adjustment is specified in advance for each input condition, and when setting each input condition, the input signal is given to the adjusting device only for the input condition requiring the feedback adjustment. A measuring method for an electronic device, comprising: measuring an input condition derived as an output signal and adjusting the input condition to be an input condition to be set. 2. An adjusting device is connected to an electronic device to be measured, an input signal for input condition setting is sequentially given to the adjusting device, and a plurality of input conditions are set as output signals from the adjusting device, In the measuring method of the electronic device for measuring the operating state, the order for setting the input conditions and the necessity of feedback adjustment for each input condition are designated in advance, and the input for setting the input condition is made to the adjusting device in the designated order. Regarding the input condition that requires a signal and feedback adjustment, it is characterized in that the input signal is supplied to the adjusting device, the input condition derived as the output signal is measured, and the input condition to be set is adjusted. Measuring method for electronic devices.