JPH0612256B2 - Measurement data collection processor - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

The present invention relates to a measurement data collection processing system (apparatus), and particularly to a measurement data collection processing suitable for use in data processing of an electronic length measuring machine having a function of outputting measurement data to the outside as an electric signal. Regarding the system.

[Prior art]

Electronic micrometer, calipers, etc., which have a built-in transformer and can digitally display the measurement result, are spreading to all industrial fields. These electronic measuring units
Compared to the conventional mechanical length measuring unit, it has certain features such as reliability at the time of reading and high accuracy, but recently, a function to output the measurement result externally as an electric signal has been added, and quality control in the measurement line is possible. The function as a data terminal for mobile phones is emphasized. Along with this, an efficient measurement data collection and processing system using this as a data terminal is being investigated. FIG. 11 shows that one of the co-applicants of the present invention has already disclosed in JP-A-60-1
77210, JP-A-60-178309, JP-A-61-
An example of the measurement data collection processing system proposed by 21362 is shown. This system includes an electronic micrometer 10 which is a data terminal, and a data collection processing device 20. When using this system, information such as the part number, process number, measurement location, and measurement order of the measurement object is set using the keyboard 22 of the data collection processing device 20. Then, the electronic micrometer 10 is used to measure the component, which is the object to be measured, according to the setting procedure, and after the measurement, the measurement of the next component is performed, and the measurement is sequentially performed. The measurement data can be input by the data output READY switch 12 of the electronic micrometer 10 and the data input switch on the keyboard 22. By pressing the processing switch on the keyboard 22 after the measurement of a series of parts is finished, a control chart or the like showing the variation in the size of the specific part of the part depending on the part is output from the printer 24 of the data collection processing device 20. To be done. Such a measurement data collection processing system itself makes a great contribution to quality control.

[Problems to be Solved by the Invention]

However, with the widespread use of such a data collection processing system, there are also points to be improved. That is, since the conventional measurement data collection processing system (data collection processing device 20) is individually attached to the electronic length measuring device (electronic micrometer 10), the electronic length measuring device for each work place or group. It is inefficient when a plurality of workers measure a large number of various parts in a plurality of measurement lines configured to include a data collection processing device. Specifically, since the individual workers perform the setting of the measurement conditions in the same procedure, the setting man-hour becomes large as a whole. Further, the data collection processing device 20 is provided with a keyboard 22 for operation, but it takes a certain amount of time to become familiar with the operation, and especially when there are a large number of workers, it is necessary for all to be able to use it. It takes a lot of time. Furthermore, if the type of parts is changed or even if the same parts are used and the measurement point is changed by an individual worker, the setting error is likely to occur. Further, when there are many measurement points of the measurement object, there is a problem that the measurement procedure is easily mistaken during the measurement.

[Object of the Invention]

The present invention has been made to solve the above-mentioned conventional problems, by deploying a group of electronic length measuring units to a plurality of measurement lines, efficiently and accurately collecting shape information of a large number of parts, and The collected measurement data is centrally processed, and the centralized management by the host computer and the individual management for each measurement line are compatible, the certainty of the centralized management is improved by adopting the setting unit, and the operability by the exclusive interface is adopted. It is an object of the present invention to provide a measurement data collecting and processing device which can be improved and maximized in usability, and can be reduced in cost and space.

[Means for solving problems]

The present invention is a plurality of measuring units that output information regarding the shape of the measuring object as an electric signal to the outside, and information regarding the measuring procedure such as the type of the measuring object, the measurement site and the type of the measuring unit to be used. And a memory for storing measurement data sequentially collected from each of the length measuring units,
Includes a data collection unit that has the function of displaying stored measurement procedures and control charts based on measurement data, and a dedicated interface that connects each unit through a connector and connects the data collection unit to another unit. Having a plurality of measurement lines configured, a keyboard for setting the measurement procedure and a memory for storing the measurement procedure, while circulating each measurement line, via a connection terminal provided in the dedicated interface , A setting unit for teaching the measurement procedure stored in the memory to the memory of the data acquisition unit, and a data acquisition unit separated from each measurement line are sequentially connected, and all the measurement lines are connected by inputting the measurement data. Achieved the above-mentioned objective by having a host computer that can perform statistical processing of measured data in a centralized manner. It was done.

[Action]

In the present invention, in each of the plurality of measurement lines, a plurality of measuring units that externally output information regarding the shape of the measuring object as an electric signal, and the type and measuring site of the measuring object and the measuring unit to be used. Information about the measurement procedure such as types, and a memory that stores the measurement data that is sequentially collected from each of the length measurement units is displayed, and the control chart based on the stored measurement procedure and the measurement data is displayed individually in the measurement line. A collecting unit having a function to perform the above-mentioned operation and a dedicated interface connected to each unit through a connector and connecting the data collecting unit to another unit.
Further, a setting unit having a keyboard for setting the measurement procedure and a memory for storing the measurement procedure is stored in the memory through a connection terminal provided in the dedicated interface while circulating each measurement line. The measuring procedure is taught in the memory of the data collection unit. Furthermore, the data collection unit separated from the measurement line is sequentially connected to the host computer,
The measurement data is input so that the measurement data of all measurement lines can be centrally processed statistically. Therefore, not only can the shape information of a large number of parts be collected efficiently and accurately, and the collected measurement data can be processed centrally, but also the centralized management by the host computer and the individual management for each measurement line are compatible, and the setting unit is adopted. It is possible to improve the certainty of unified management by adopting, and to improve the operability by adopting a dedicated interface, thereby maximizing the usability and achieving low cost and space saving. Further, when the operation unit for displaying the measurement procedure is included in the measurement line as a separate body from the data collection unit, the operation unit can be set at the position where the operator can work most easily.

【Example】

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram showing the overall configuration of an embodiment of the measurement data collection processing system according to the present invention. This system is provided with N measurement lines 40-1 to 40-N and one setting unit 60 for setting measurement conditions, with the host computer 30 as the core. M measuring units 44-1 to 44- for measuring the measurement object size of the measurement object 40-1
M, a dedicated interface (I / F) 46-1, and a data collection unit 48-1 equipped with a control chart that can monitor variations in component dimensions during measurement, for example, a control chart display 48A for x chart display. , An operation unit 50-1 equipped with a measurement procedure display 50A and an input switch 50B. Other measurement lines 40-2 to 40
-N has the same configuration. The host computer 30 has a data collection unit 48-1.
Dedicated interface (I / F) 32 for connecting to any one of ~ 48-N is provided. The dedicated interface 32 has the same structure as the dedicated interfaces 46-1 to 46-N of each measurement line. In FIG. 1, the setting unit 60 is the measurement line 40.
-1 is connected to the dedicated interface 46-1, but this shows a state in which the measurement conditions stored in the setting unit 60 are transferred to the dedicated interface 46-1. At the time of measurement, the setting unit 60 is separated from the measurement line. Each of the length measuring units 44-1 to 44-M has a built-in photoelectric transducer, a magnetic type, a capacitance type transducer or the like, and has a function of exchanging the length measured value into an electric signal and outputting it to the outside. Have FIG. 2 shows an example of the length measuring unit. Second
FIG. 2A shows an electronic hide gauge, FIG. 2B shows an electronic inner diameter measuring instrument, and FIG. 2C shows an electronic caliper. In the present embodiment, as a method of converting the length measurement value into an electric signal and outputting the electric signal to the unit, a method of converting the length measurement value into a BCD code and then outputting it as a serial pulse in synchronization with the clock pulse is adopted. , Other output methods can be adopted. The measurement data output timing is as follows: READY switch 44A attached to each measurement unit, operation unit 5
Input switch 50B on 0 and dedicated interface 4
It can be appropriately set by the foot switch 45 connected to 6-1. The internal structure of the data collection unit 48-1 and the dedicated interface 46-1 is shown in FIG. The data collection unit 48-1 includes a liquid crystal display level constituting the control chart display 48A, a control chart display switch 48B,
An RS-232C port 48E for communicating the measurement start instruction switch 48C, the measurement data cancel switch 48D, and the data collection unit 48-1 with the setting unit 60 and the contact unit 50-1 according to the RS-232C standard, for example. And a serial input / output port 48F for transmitting and receiving measurement data and command codes to and from the length measuring units 44-1 to 44-M, and data of the length measuring units 44-1 to 44-M. READY signal and foot switch 45-1, 45-2 which are output signals
Parallel input port 48G for capturing signals such as
, CPU 48H, memory 48J, main bus 48
K and are included. Address lines for selecting input / output ports are omitted. Also, the dedicated interface 46-1 is the same as the third one.
As shown in the drawing, the buffer 46A communicating with the connector for the setting unit 60, the buffer 46B communicating with the connector for the operating unit 50-1, and the connector for the measuring units 44-1 to 44-M are connected. Buffer 4
6C to 46E and R of each measuring unit 44-1 to 44-M
A buffer 46F for the EADY signal line and the foot switches 45-1, 45-2, and the data collecting unit 48.
-1 RS-232C port 48E and the buffer 46
A bus line 46G connecting A and the buffer 16B,
A bus line 46H connecting the serial input / output port 48F of the data collecting unit 48-1 and the buffers 46C-46E, and a bus line 46J connecting the parallel input port 48G of the data collecting unit 48-1 and the buffer 46F. It is configured to include. Each buffer 46A-46F is a C of the data collection unit 48-1.
When it is selected by an address line (not shown) by the PU 48H, it functions as an input / output connection port that allows a signal to pass therethrough and disconnects the signal line in the non-selected state. The data collecting unit 48-1 and the dedicated interface 46-1 are connected by a reference conector 47.
The data collection unit 48-1 is a dedicated interface 4
It can be easily separated from 6-1. From each of the length measuring units 44-1 to 44-M, the measurement data is transferred as a DATA signal in synchronization with the clock (CLK) signal. As shown in detail in FIG. 4, the operation unit 50-1 includes a liquid crystal display panel which constitutes a measurement procedure display 50A, an input switch 50B which indicates data output of the length measuring units 44-1 to 44-M, Dedicated interface 46-
RS-232C port 50C connected to 1 and CPU
And 50D. This operation unit 5
0-1 is separated from the data collection unit 48-1 and can be easily moved to the actual measurement location, which is convenient. As shown in detail in FIG. 5, the setting unit 60 has a liquid crystal display panel 60A for confirming and displaying the measurement conditions such as the part number, the measurement item (measurement site), and the measurement sequence for each length measurement unit. , Dedicated interfaces 46-1 to 4
An RS-232C port 60B connected to 6-N, a keyboard 60C for setting measurement conditions, a decoder 60D for driving the keyboard 60C, an input port 60E for outputting the keyboard 60, and a memory 60E,
It is configured to include a CPU 60G. The operation of the embodiment will be described below. FIG. 6 shows an example of the measurement object 42. Here, it is assumed that the measurement items are A, B, ..., J. Of these, measurement items F, G, H, and I are items for inspecting variations due to the depth of the inner diameter of the hole. When the number of measurement objects is Q, an example of the structure of the measurement data in the measurement items shown in FIG. 6 is as shown in FIG. In addition, among the respective measurement items, measurement items A to C are electronic height gauges shown in FIG. 2 (A), and measurement items D to I are electronic type inner diameter measuring devices shown in FIG. 2 (B). Item J is Fig. 2 (C)
It can be measured with an electronic caliper shown in. Corresponding to each length measuring unit, the display as shown in FIG. 8 is displayed on the measuring procedure display 50A of the operating unit 50-1. That is, in FIG. 8 (A), the number of measurement points of each length measuring unit (3 in the length measuring unit 44-1 and 4 in the length measuring unit).
6 in 4-2, 1 in measuring unit 44-3 and the number of measurement end points (2 in measuring unit 44-1, 4 in measuring unit)
4-2 is 0, length measuring unit 44-3 is 0), and the item to be measured next (C in this case) is shown. When the measurement of item C is completed, the display is as shown in FIG. 8 (B). FIG. 9 shows a flow chart in the case of measuring the measuring object 42 shown in FIG. 6 with N measuring lines in a lot. First, in step 100, the setting unit 60 alone is used, the part number, the number of measurement items (for example, 10 points), the measuring order of the length measuring unit 44-1 (A to C), the length measuring unit 4
The measurement conditions such as the measurement order of 4-2 (DI) and the measurement order of the length measuring unit 44-3 (J) are set. Next, in step 102, the setting unit 60 is connected to, for example, the dedicated interface 46-1 of the first measuring line 40-1, and the set measuring condition is set in the data collecting unit 48-1.
Then, the setting unit 60 is disconnected. Similarly, the measurement condition is transferred to the data collection unit 48-N while forwarding the setting unit 60 to the final measurement line 40-N (step 104). Then step 106
-1 to 106-N, the measurement object 42 is measured one after another according to the measurement procedure of the operation units 50-1 to 50-N for each measurement line as shown in FIG. . After all the measurements are completed, steps 108-1 to 108-
Proceed to N and collect data at each measurement line 48-1
~ 48-2 are dedicated interfaces 46-1 ~
Separate from 46-N. This step 106 and 108
Are processed in parallel. Then proceed to step 110, for example the first measurement line 4
The 0-1 data collecting unit 48-1 is connected to the dedicated interface 32 of the host computer 30 to transfer the measurement data to the host computer 30. Similarly, the data acquisition unit 48-N of the final measurement line 40-N
Until then, the measurement data is transferred to the host computer 30 (step 112). Next, in step 114, the host computer 30 performs various statistical processes and ends the process. Here, in each measurement line, the control chart display switch 48B of the data collection unit 48 is displayed before the measurement of all parts is completed.
By pressing, it is possible to display the control chart of only the parts for which measurement has been completed in the immediately preceding measurement item. FIG. 10 shows an example of the displayed control chart (x chart), where C is the average value, U is the upper limit value, and L is the lower limit value. Therefore, even if the measurement result is greatly changed even during the measurement, it is possible to immediately take measures. Although the data collection unit 48 and the dedicated interface 46 are separate bodies in the above-described embodiment, they may be integrated. Further, in the above-mentioned embodiment, the operation unit 50 is provided independently, but it may be integrated with the data collection unit 48 or the dedicated interface 46. Further, in the above embodiment, the communication specification is RS-
232C and clock pulse-synchronized serial transfer were used together, but the present invention is not limited to this, and it is also possible to perform parallel transfer, for example. Further, in the above embodiment, the dedicated interface 46 of the data collection unit 48 and the dedicated interface 32 of the host computer 30 are separate bodies, but since both have the same structure, the communication line from the host computer 30 is different. The dedicated interface 46 for each measurement line is set as a port for the unit 60 (buffer 46A)
It is also possible to connect to, and in this case, the system is further simplified because the port is shared.

【The invention's effect】

As described above, according to the present invention, a group of electronic measuring units can be arranged in a plurality of measuring lines to collect shape information of a large number of parts efficiently and accurately, and further collect collected measurement data in a concentrated manner. Not only can it be processed, but also the unified management by the host computer and the individual management for each measurement line are compatible, and the reliability of the unified management is improved by adopting the setting unit.
In addition, the operability is improved by adopting a dedicated interface, the usability is maximized, and the cost is low.
Space saving can be achieved. Therefore, the efficiency is good, and the man-hours for setting the measurement conditions can be greatly reduced.
In addition, it is possible to use the keyboard easily without mastering the operation of the keyboard or the like. Further, even if the type of parts is changed or the measurement location is changed for the same part, setting error is unlikely to occur. Further, even if there are many measurement points, there is an excellent effect that the measurement procedure is not mistaken.

[Brief description of drawings]

FIG. 1 is a block diagram showing the overall configuration of an embodiment of the measurement data collecting and processing apparatus according to the present invention, and FIGS. 2 (A), (B), and (C) are the measurement diagrams used in the above embodiments. FIG. 3 is a perspective view showing an example of a long unit, FIG. 3 is a block diagram showing the configuration of the data collecting unit and the dedicated interface used in the above-mentioned embodiment, and FIG. 4 is a block diagram showing the configuration of the operating unit. Fig. 5, Fig. 5 is a block diagram also showing the configuration of the setting unit, Fig. 6 is a perspective view showing an example of the measurement object, and Fig. 7 is a diagram showing an example of the configuration of measurement data. 8 (A) and 8 (B) are front views showing a display example of operation procedures in the operation unit, FIG. 9 is a flow chart showing condition setting and measurement procedures in the embodiment, and FIG. 10 is the data. Front view showing an example of a control chart display of the collection unit 11 is a perspective view showing an example of a configuration of a conventional data acquisition processing system. 30 ... Host computer, 32 ... Dedicated interface, 40-1 to 40-N ... Measuring line, 42 ... Measuring object, 44-1 to 44-M ... Length measuring unit, 46-1 to 46 -N dedicated interface, 48-1 to 48-N ... Data collection unit, 50-1 to 50-N ... Operation unit, 50A ... Measuring procedure display, 60 ... Setting unit, 60C ... Keyboard.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masahiro Kuwahara, 1 Toyota Town, Toyota City, Aichi Prefecture, Toyota Motor Corporation (72) Inventor, Kazuma Ohara, 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Corporation ( 72) Inventor Riki Kanda 1 Toyota Town, Toyota City, Aichi Prefecture, Toyota Motor Corporation (72) Inventor Shinsho Mizuno 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Corporation, (72) Inventor, Mamoru Yasuda Kanagawa Prefecture 165 Sakado, Takatsu-ku, Kawasaki City, Mitoyo Manufacturing Co., Ltd. (72) Inventor, Hiroshi Koizumi 165, Sakado, Takatsu-ku, Kawasaki, Kanagawa (56) Reference, Mitoyo Manufacturing Co., Ltd. , A) Japanese Unexamined Patent Publication No. 61-213620 (JP, A) Actually developed 61-82210 (JP, U)

Claims (2)

[Claims] 1. A plurality of length measuring units for externally outputting information on the shape of the measuring object as an electric signal, and information on the measuring procedure such as the type of the measuring object, the measurement site, and the type of the measuring unit to be used. , And a data collection unit including a memory for storing the measurement data sequentially collected from each of the length measurement units and having a function of displaying the stored measurement procedure and a control chart based on the measurement data, and each unit through a connector. A plurality of measurement lines each including a dedicated interface that connects the data collection unit and another unit, and a keyboard for setting the measurement procedure and a memory that stores the measurement procedure, While patrol each measurement line, the measurement procedure stored in the memory is described above through the connection terminal provided in the dedicated interface. The setting unit for teaching to the memory of the data collection unit and the data collection unit separated from each measurement line are sequentially connected, and the measurement data of all measurement lines can be intensively statistically processed by inputting the measurement data. A measurement data collecting and processing device comprising: a host computer. 2. The measurement data collection processing apparatus according to claim 1, wherein an operation unit for displaying the measurement procedure is included in the measurement line separately from the data collection unit.