JPH11241931A - Signal simultaneous measuring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the period for the development of a corresponding measuring program when the kinds of signals required to be simultaneously measured are changed. SOLUTION: This device has function modules (AD converting function control A module or the like) 61-68 for controlling the functions of measuring substrates 22-25, and they are set to corresponding positions of function module storing parts 71-75 according to the kind and the number of the measuring substrates 22-25. When the kinds of signals are differed, only the contents of the function modules 61-68 are changed, but a basic module part 36 storing the program of the part common to the function modules 61-68 is not changed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal simultaneous measuring device capable of simultaneously measuring various signals output from sensors and measuring instruments, and for example, quality inspection for judging the quality of mechanical components such as a torque converter and a hypoid gear. The present invention relates to a signal simultaneous measurement device suitable for application to a device or the like.

[0002]

2. Description of the Related Art Conventionally, in order to determine the quality of mechanical components such as a torque converter and a high void gear, these mechanical components, in other words, a component to be measured, include a torque sensor,
Sensors such as a load cell and an optical sensor and / or measuring instruments such as a tachometer and an ammeter are attached, and the quality of the mechanical parts is determined by analyzing signals output simultaneously from these sensors and the measuring instruments. .

For example, as a device for simultaneously measuring different types of signals simultaneously output from a component to be measured, there is a device for simultaneously measuring different types of signals using a personal computer (hereinafter, referred to as a PC).

FIG. 7 shows a configuration of a conventional heterogeneous signal measuring apparatus 2 according to the prior art.

The heterogeneous signal simultaneous measuring device 2 has a PC 4. The PC 4 includes a computer main body 8 storing a program 6 and a C connected to the computer main body 8.
It comprises an RT 10 and a keyboard 12.

[0006] Sensors 16 and 18 and a measuring device 20 are attached to the component 14 to be measured which is judged to be good or bad by the heterogeneous signal simultaneous measuring device 2, and the output of these components is an AD board (board on which an AD converter is mounted). 22, counter board # board with counter (CNT) # 24 and B
The computer main body 8 through a system bus (not shown) of the computer main body 8 through a CD (binary-decimal decimal) board (a board for converting a decimal number into a BCD code) 26
It is configured to be taken into.

[0007] In the heterogeneous signal simultaneous measurement apparatus 2 configured as described above, a module optimized for the substrates 22, 24, and 26 to be measured simultaneously is stored as the program 6 stored in the computer main body 8. .

FIG. 8 shows a flowchart according to the program 6.

That is, first, the operations of the AD board 22, the counter board 24, and the BCD board 26 are started by association at the programming level (Steps S1 to S1).
3). The counter (CNT) on the counter substrate 24
Starts and ends by latching the output.

Next, the end of conversion of the AD converter mounted on the AD board 22 and the end of conversion of the BCD board 26 are confirmed by association at the programming level (steps S4 and S5).

Next, the converted AD data, CNT data and BCD data are taken into the computer main body 8 and stored in a memory (not shown) (steps S6 to S8) at the programming level.

As described above, in the heterogeneous signal simultaneous measuring apparatus 2 according to the prior art, basically, the AD board 22 and the like are connected to the system bus of the computer main body 8 constituting the PC 4 to constitute a measuring system as a whole. doing. For this reason, the program 6 stored in the computer main body 8, that is, the system program is dedicated to this measurement system.

[0013]

However, as described above, in the measurement system in which the system program 6 is programmed in conformity with the plurality of boards 22, 24, and 26 connected to the computer main body 8, additional functions are added. In addition, when performing a function change including an improvement in the function, the program 6 stored in the computer main body 8 as a system program must be changed every time, so that an extremely cramped versatile measurement system is required. Has become.

That is, it is necessary to create a dedicated module in accordance with the specifications of the sensor 16 and the measuring device 20 and the specifications of the AD board 22 and the like attached thereto. For this reason, when there are a wide variety of combinations of changes in hardware specifications and specifications based on user demands (number of measurement channels, measurement speed, measurement time, physical quantity conversion formula, etc.), the elimination of module bugs, etc. There is a problem that the module creation time (man-hours) increases.

The present invention has been made in view of such problems, and has been made to flexibly cope with connection of a measurement substrate having a new function, partial modification of the function of the measurement substrate, and the like. It is an object of the present invention to provide a signal simultaneous measurement device that enables the measurement.

[0016]

According to the present invention, each of the measurement substrates connected to a plurality of signal sources is connected to one side of a function module storage unit, and the other of the function module storage units is connected to one of the function module storage units. Side, and has a basic module unit for controlling the entire device, and an expansion function module unit having various function modules selected by the basic module unit and stored in the function module storage units, Each of the functional modules includes a data setting unit for setting measurement conditions of each of the measurement substrates, a measurement start command unit that starts measurement of each of the measurement substrates, and a termination of measurement of each of the measurement substrates. A measurement end confirmation section for confirming,
A data capturing unit that captures data after the measurement is completed.

The signal simultaneous measuring device according to the present invention is divided into a basic module portion for controlling the entire device and a functional module portion for controlling individual functions. , It is possible to easily deal with the connection of the measurement substrate having a new function, the partial change of the function content of the measurement substrate, and the like.

In this case, the data setting section sets a physical quantity conversion method for converting the data into desired physical quantity data when the data is taken into the data taking section.
By converting data into desired physical quantity data based on a physical quantity conversion method when capturing data, the desired physical quantity data can be easily obtained as an output of the functional module.

[0019]

An embodiment of the present invention will be described below with reference to the drawings. In the drawings referred to below, components corresponding to those shown in FIG. 7 are denoted by the same reference numerals, and detailed description thereof will be omitted.

FIG. 1 shows an entire configuration including a signal simultaneous measurement device 31 according to an embodiment of the present invention applied to a personal computer. This signal simultaneous measurement device 3
According to 1, the quality of a mechanical component such as a torque converter or a high void gear as the measurement target component 14 is determined.

The signal simultaneous measurement device 31 basically includes a basic module section 36 for controlling the entire signal simultaneous measurement device 31 and an extension module in which function modules 61 to 68 as modules for a measurement board are stored. Function module 6
0 and an extension function module section 16 in which modules (timers) 161 other than the module for the measurement board are stored.
0 and function module storage units 71 to 76 in which function modules are set. Note that a module refers to a unit of software divided according to function, and a certain function is achieved by each module.

The components 14 to be measured include load sensors, temperature sensors, optical sensors and other sensors 16, 17, and 18 as signal sources for generating signals, and measuring instruments such as tachometers, ammeters and voltmeters. 19 is attached.

The output sides of the sensors 16 to 18 are each an AD board having a 12-bit resolution (a board on which an AD converter is mounted and also referred to as a measurement board) 22 having an 8-bit resolution, each of which is a measurement board. FFT (Fast Fourier Transform) substrate (a substrate on which a fast Fourier transformer is mounted, also referred to as a measurement substrate) 23, 12-bit counter substrate カ ウ ン タ A substrate on which a counter (CNT) is mounted, also referred to as a measurement substrate. # 24 is connected to the input side. The output side of the measuring instrument 19 is connected to the input side of a 16-bit AD board (measurement board) 25.

The other side of each of the measuring boards 22 to 25 (which may be an input side or an output side) is connected to input / output ports 41 to 45.
Are connected to one side of the function module storage units 71 to 74 among the function module storage units 71 to 75 via input / output ports 41 to 44, respectively.

The other side of the functional module storage units 71 to 75 is connected to the basic module unit 36.

The unused input / output port 45 and the function module storage section 75 are reserved, and the desired measurement board can be freely attached to and detached from the input / output port 45.

In the function module storage section 76, a timer 161 as a function module which is a time measuring device in the expansion function module section 160 is set.

In the remaining function module storage sections 71 to 75, one of the function modules 61 to 68 stored in the expansion function module section 60 is selected and set by the basic module section 36.

In this case, the function module 61 is a module for controlling the function of a 12-bit AD converter, and is also referred to as an AD conversion function control A module 61. The function module 62 is a module for controlling the function of the 16-bit AD converter.
Also referred to as module 62. The function module 63
This is a module for controlling the function of the bit counter, and is also referred to as a CNT function control A module 63. The function module 64 is a module for controlling the function of the 16-bit counter, and is also referred to as a CNT function control B module 64. The function module 65 is a module for converting input 8-bit data into two BCD data, and is also referred to as a BCD conversion function control A module 65. The function module 66 is a module for converting input 16-bit data into four BCD data, and is also referred to as a BCD conversion function control B module 66. The function module 67 is a module for converting decimal data into 8-bit binary data, and is also called a BIN conversion function control A module 67. The function module 68 is a module for controlling the function of the 8-bit FFT analyzer.
Also called T conversion function control module 68.

FIG. 2 shows the configuration of the function modules 61 to 68. Each of the functional modules 61 to 68 has a data setting unit 60a, a measurement start command unit 60b, a measurement end confirmation unit 60c, and a data acquisition / physical quantity conversion unit (data acquisition unit and physical quantity conversion unit) 60d.

The data setting unit 60a includes the measurement substrate 22
For example, measurement conditions such as a measurement speed, a measurement time, a measurement channel, a measurement range, and the like for controlling the functions of ~ 25 are set, and when the data is taken into the data acquisition / physical quantity conversion unit 60d, the data is acquired. A physical quantity conversion method (physical quantity conversion formula or physical quantity conversion lookup table) for converting to desired physical quantity data is set as necessary.

The measurement start command section 60b is connected to the measurement board 22.
This is a part for issuing a measurement start command to.
In this case, the measurement start command is issued to the AD boards 22, 25 and F
For the FT board 23, a command to start AD / FFT conversion is issued. For the counter board 24, a latch command,
That is, it is a measurement end command.

The measurement end confirmation section 60c is provided for the AD board 22,
Completion (end) of measurement for 25 and FFT substrate 23
Is a part for checking the counter substrate 24.
This is a so-called dummy setting in which no processing is performed.

The data fetching / physical quantity conversion unit 60d fetches the data whose measurement has been completed from the measurement substrates 22 to 25 via the function module storage units 71 to 74, and the data storage unit 84 connected to the basic module unit 36. Is stored. The data acquisition / physical quantity conversion unit 60d
Is used to convert data into desired physical quantity data based on the physical quantity conversion method when data is taken in.
4 has a function of storing data.

FIG. 3 shows the configuration of a timer (also referred to as a functional module) 161 as the remaining functional module. The timer 161 has a timekeeping condition setting unit 160a for setting timekeeping conditions such as a timekeeping start condition and a timekeeping period, a timekeeping start unit 160b for instructing timekeeping start, and a timekeeping confirmation unit 160c for checking the timekeeping time in real time. ing.

Setting of function modules 61 to 68 and 161 in function module storage units 71 to 76 and data setting unit 6
The setting of the data to 0a is performed by operating the setting input device 80 having a keyboard, a mouse, and a display such as a CRT connected to the basic module unit 36. Note that the measurement of the measurement target component 14 by the signal simultaneous measurement device 31 is started by operating the execution start switch 82.

FIG. 4 shows the signal simultaneous measuring device 3 shown in FIG.
1, the configuration of a basic module unit 36 is shown. The basic module unit 36 has a module / module selection module 36 which is common to the measurement substrates 22 to 25.
a, Sampling speed / measurement time setting module 36
b, a trigger function condition setting module 36c, a board / module management module 36d, a time management module 36e, and a data management module 36f.

Module 36a for substrate / module selection
Is a functional module 61 with respect to the measurement substrates 22 to 25.
６８68 is to select a corresponding one and set it in the function module storage units 71１〜74.

The sampling speed / measurement time setting module 36b is for setting the measurement speed such as the sampling speed and the measurement time such as the sampling time in the data setting section 60a of the function modules 61 to 68.

Trigger function condition setting module 36c
Is for setting a start trigger (start trigger) and an end trigger (end trigger) in the data setting unit 60a.

Board / Module Management Module 36d
Is for managing whether or not the data set in the function module storage units 71 to 76 is consistent.

The time management module 36e manages the measurement speed such as the sampling speed and the measurement time.

Further, the data management module 36f
Is for managing data acquired from the measurement boards 22 to 25 via the function module storage units 71 to 74.

Next, the operation of the above embodiment will be described.
This will be described with reference to the flowchart shown in FIG. The control entity of this flowchart is the basic module unit 36.

First, as a preparation stage, the part 14 to be measured
The desired measurement substrates 22 to 25 are connected to the outputs of the sensors 16 to 18 and the measuring device 19 connected to the measuring device 19. In this case, any of the input / output ports 41 to 45 of the signal simultaneous measurement device 31 can be selected as the measurement substrates 22 to 25.

Next, the setting / input device 80 allows the board / module selection module 36 of the basic module section 36 to be set.
a conversion function control A modules 61 and FFs respectively corresponding to the measurement substrates 22, 23, 24 and 25 under the control of
T conversion function control module 68, CNT function control A module 63, and AD conversion function control B module 62
And the timer 161, and the selected function module 6
1 to 63, 68 and the timer 161 are set in the function module storage units 71 to 74 and the function module storage unit 76, respectively (step S11).

Next, the function module storage units 71 to 7 are operated by the sampling speed / measurement time setting module 36b.
4, the A / D conversion function control A module 61,
FFT conversion function control module 68, CNT function control A
Module 63 and AD conversion function control B module 6
Function module 6 for sampling speed and measurement time of 2
The data is set in each of the data setting units 60a of 1, 68, 63, and 62 (step S12).

Next, the timer 161 stored in the function module storage section 76 is initialized, and at step S1
The number of times of sampling (measurement time / sampling speed) is calculated from the sampling speed and the measurement time input in step 2 (step S13).

Next, the A / D conversion function control A module 61 and FF stored in the function module storage units 71 to 74
Through the T conversion function control module 68, the CNT function control A module 63, and the AD conversion function control B module 62, necessary initialization is performed on the measurement substrates 22 to 25 (step S14). At this time, through the respective data setting units 60a of the function modules 61, 68, 63, and 62, the existence confirmation processing of whether or not the measurement substrates 22 to 25 are actually connected, the sensitivity of each of the measurement substrates 22 to 25, and the like are performed. , A conversion mode setting process such as an input mode such as an input coupling, a clearing process of output data of the measurement substrates 22 to 25, and the like.

After operating the measurement target component 14 based on such initial settings, the execution start switch 82 is manually or automatically operated to start measuring the sampling speed by the timer 161 (step S15). .

At the same time, the function module storage units 71 to 74
The A / D conversion function control A module 61, the FFT conversion function control module 68, the CNT function control A module 63, and the A / D conversion function control B module 62 which are the modules stored in A measurement start command is sent to the corresponding measurement boards 22 to 25 through the respective measurement start command units 60b of the function modules 61, 68, 63, and 62 (step S16). By the measurement start command, the output of the sensor 16 by the AD boards 22 and 25 and the measuring device 19
A / D conversion is started for the output of. At the same time, FF
The FFT processing on the output of the sensor 17 by the T substrate 23 is started. At the same time, the output of the counter substrate 24 is latched.

Next, the function modules 61, 68, 6
A certain sampling point (in this case, the first sampling point) through each measurement end confirmation unit 60c of 3 and 62
The end of the AD conversion and the end of the FFT process are confirmed (step S17). The counter substrate 24 ends the process when the output is latched, and thus the end confirmation process is a dummy process.

The data obtained simultaneously in this manner is stored in the functional module storage units 71 to 74.
The data conversion / physical quantity converter 60d of the D conversion function control A module 61, FFT conversion function control module 68, CNT function control A module 63, and AD conversion function control B module 62 converts the data into physical quantities (temperature, pressure values, etc.). Are chronologically taken into the data storage unit 84 (step S18).

Next, it is confirmed that the timing of the sampling speed has been completed (step S19). If the measurement has been completed, the number of times of sampling is confirmed (step S20).
The processes in steps S15 to S20 are repeated until the number of samplings calculated in step S13 is reached, and the measurement is completed through the measurement completion confirmation units 60c of the functional modules 61, 68, 63, and 62.

If it is determined in step S19 that the end of the timing of the sampling speed has not been confirmed, error processing is performed, for example, the fact is displayed on a display screen (not shown), and the processing ends (step S2).
1).

As described above, according to the above-described embodiment, a plurality of function modules (AD conversion function control A module and the like) 61 to 68 for controlling the functions of the measurement substrates 22 to 25 are provided, and various signals are simultaneously measured. When measuring, the measurement substrate 22
Function modules 61, 68, 63, 6 corresponding to .about.25
2 and set the necessary data in each data setting section 60
a, and is set and stored in corresponding locations of the function module storage units 71 to 74.

At this time, the measurement substrate 2 prepared in advance
If the signal cannot be measured by 2 to 25, a necessary measurement board is added, and if a function module for the added measurement board is present in the extension function module unit 60, it is used and does not exist. In such a case, a new function module is created and added to the expansion function module unit 60.

In this manner, only by changing the extension function module section 60, the basic module section 36 (which stores a program of a part common to the extension function module section 60 (function modules 61 to 68)) is stored. (See Fig. 4)
Thus, it is possible to measure various signals at the same time without changing the content of the signal. This makes it possible to shorten the development period of the corresponding measurement program when the types of signals that need to be measured are changed at the same time. In addition, even when the combination of signals to be measured at the same time is changed, since there is no need to change the connection of the wiring, the function module storage units 71 to 75 are simply provided.
The measurement can be performed only by changing the function modules 61 to 68 set in the software by software.

FIG. 6A is for generally explaining these effects according to the above-described embodiment in comparison with that of the prior art, and FIG. 6B is the same as FIG. 8 for comparison. The flowchart is re-posted.

That is, according to the present invention, for example, among the function modules stored in the expansion function module section 60, three function modules P, Q, and R are measured in any of the function module storage sections 71 to 75. Substrates 22-2
5 and store them (steps S101 to S10).
2). At this time, necessary data is set in the data setting unit 60a. Then, the conversion (measurement) by the functional modules P, Q, and R is started through the measurement start command unit 60b (steps S104 to S106). Next, the measurement based on the functional modules P, Q, and R is terminated through the measurement termination confirmation unit 60c (Steps S107 to S109). After the measurement is completed, data is taken from the modules P, Q, and R through the data taking / physical quantity conversion unit 60d. At this time, it is converted into a physical quantity and imported as needed (step S11).
0 to S112).

In this way, the measurement substrates 22 to 25
By adding and changing only the contents of the data setting unit 60a, the measurement start command unit 60b, the measurement end confirmation unit 60c, and the data acquisition / physical quantity conversion unit 60d of the function modules P, Q, and R corresponding to The effect that various signals can be simultaneously measured by combining various types of the measurement substrates 22 to 25 without changing the contents of the modules 36a to 36f constituting the module unit 36 is achieved.

The present invention is not limited to the above-described embodiment, but can adopt various configurations without departing from the gist of the present invention.

[0063]

As described above, according to the present invention, the signal simultaneous measuring apparatus is basically divided into a basic module section for controlling the entire apparatus and a functional module section. For this reason, by changing the content of the function module according to the measurement board, it is possible to flexibly cope with connection of the measurement board having a new function, partial change of the function content of the measurement board, and the like. The effect is achieved.

To explain the effects in detail, it is possible to cope with a change in specifications (number of measurement channels, measurement speed, measurement time, physical quantity conversion formula, etc.) based on a user's request by changing a function module. This makes it possible to achieve an effect that the flexibility of module creation in the signal simultaneous measurement device is improved.

As a result, for example, it is only necessary to change the module in response to the change of the specification of the measurement board in connection with the change of the component to be measured within a very narrow range, so that the effect of significantly reducing the number of steps for producing the module is achieved. You.

Further, by setting a physical quantity conversion method for converting into desired physical quantity data in the functional module, desired physical quantity data can be easily obtained as an output of the functional module.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing a detailed configuration of a functional module other than a timer in the example of FIG. 1;

FIG. 3 is a diagram showing a detailed configuration of a functional module of a timer in the example of FIG. 1;

FIG. 4 is a diagram showing a detailed configuration of a basic module in the example of FIG. 1;

FIG. 5 is a flowchart for explaining the operation of the example in FIG. 1;

FIG. 6A is a flowchart illustrating an example of a method according to an embodiment of the present invention, and FIG. 6B is a flowchart according to a conventional technique.

FIG. 7 is a block diagram showing a configuration of a conventional technique.

FIG. 8 is a flowchart provided for explaining the operation of the conventional technique.

[Explanation of symbols]

14 ... Measurement target parts 16-18 ... Sensor 19 ... Measuring instrument 22-25 ... Measurement board 31 ... Signal simultaneous measurement device 36 ... Basic module part 60 ... Extension function module part 60a ... Data setting part 60b ... Measurement start command part 60c: Measurement end confirmation unit 60d: Data acquisition / physical quantity conversion unit 61-68: Function module 71-76: Function module storage unit

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shinsuke Taniguchi 1-10-1 Shinsayama, Sayama City, Saitama Prefecture Inside Honda Engineering Co., Ltd. (72) Inventor Shigemitsu Nakamura 1-10-1 Shinsayama, Sayama City, Saitama Prefecture Hondae Engineering Co., Ltd.

Claims (2)

[Claims] 1. A measurement module connected to each of a plurality of signal sources, a function module storage section connected to one side, and a function module storage section connected to the other side of each function module storage section, and the entire apparatus And an extension function module unit having various function modules that are selected by the basic module unit and stored in the function module storage units. A data setting unit for setting the measurement conditions of the measurement substrate, a measurement start command unit for starting the measurement of each measurement substrate, and a measurement end confirmation unit for confirming the end of the measurement of each measurement substrate, A signal simultaneous measurement device comprising: a data acquisition unit that acquires data after measurement is completed. 2. The signal simultaneous measurement device according to claim 1, wherein the data setting unit is provided with a physical quantity conversion method for converting the data into desired physical quantity data when the data is taken into the data acquisition unit. The signal simultaneous measurement device, wherein the data acquisition unit converts the data into desired physical quantity data based on the physical quantity conversion method and takes in the data when acquiring the data.