JPS6111885A - Transmitting device of measured data - Google Patents

Abstract

PURPOSE:To always keep connecting condition at highly reliable state by providing a trunk connecting means including a terminal connecting between the internal circuit side and the data storage device side freely attachably/detachably to/from an interface device. CONSTITUTION:A data transmitter 16 has an interface function for inputting data stored in a data logger 14 to an electronic computer 18. The data transmitter 16 is provided with a connector 16A to which the connector 14C of the data logger 14 is connected at the transmission of data and a connector 16B to which the connector 18A of the electronic computer 18 is connected. in addition, a trunk connector consisting of a printed substrate mounting an electric circuit connecting the connector of the internal circuit side to that of the data logger side and a holder is attachably/detachably formed in the data transmitter 16.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a measurement data transmission device, and in particular, to a measurement data transmission device for transmitting measurement data from a length measurement device such as a sub-length digital signal transmission type micrometer or a caliper to a common computer for obtaining quality control data, etc. The present invention relates to an improvement in a measurement data transmission device suitable for use in actual use, for transmitting data measured by a large number of measuring instruments to a common data processing device.

[Conventional technology]

Generally, in a measuring instrument that measures the length of an object, such as a caliper or a micrometer, the amount of movement of the probe relative to the main body, the amount of movement of the slider relative to the column, etc.
When measuring the amount of movement of something that moves relative to each other, for example, a so-called digital display measuring device is used, which has an encoder consisting of a light source, a main scale, an index scale, and a photoelectric conversion element built into the main body of the measuring device, and displays the measured value digitally. Are known. According to such digital display measuring instruments, compared to analog display measuring instruments that display measured values in analog,
It has the characteristics that the measured values are easy to read and no skill is required. However, in the past, the analog display scale was simply replaced with a digital display, and when the measured values were input into an external computer, etc. to calculate the standard deviation, etc., and were to be used for quality control, it was necessary to use the digital display. This method has a problem in that the operator must first read the displayed value displayed on the display, record it in a ledger, etc., and then input the read data into an external computer again. In order to solve these problems, a digital display measuring instrument has been proposed that can output the measured value as a digital signal to the outside, but this requires a direct connection between the digital display measuring instrument and an external computer. , had the following practical problems. That is, the measurement location is limited by the installation conditions of the external computer, and the object to be measured must be transported to and from a measurement location remote from the processing site, which is inefficient. Although it is conceivable to install a simple external computer at the processing site, this is not only difficult to implement due to temperature, vibration, noise, etc., but also has a limited processing capacity. Furthermore, since the measurement work is usually performed intermittently and over a long period of time, not only the functions of the external computer are restricted for a long time, but also the preparation of the workers is required. Furthermore, the calculation results are usually not measured in real time, but are used as indicators for later data analysis and optimization of subsequent machining processes, or are tabulated or graphed. During this time, the external computer's interrupt function is occupied, making it impossible to fully utilize the original functions of the external computer. Furthermore, since the measurement point generally changes for each object to be measured, and long-term measurements of the same object are rare, it is necessary to operate an external computer each time a change is made, which requires a worker. Furthermore, the type of external computer connected to the sub-length device limits the required calculation results. In order to solve these problems, the applicant has already filed Japanese Patent Application No. 58-162952 and Japanese Patent Application No. 58-1629.
5'3, a data switch for calling a measured value, a data identifying means for attaching a data identification code including at least an article number to the called measurement value, and sequentially storing the data identification code and the measured value in correspondence with each other; To do this, a data storage means capable of reading the stored contents in response to a request from an external computer is integrally provided in the length measuring instrument body, and the measured value display function of the digital display is inhibited. Instead, the present invention proposes a digital display sub-device characterized in that the data storage means is detachable and portable from the main body of the sub-device. According to such a digital display length measuring device, it is possible to accumulate measured values without directly connecting the sub-length measuring device to an external computer, and furthermore, it is possible to input measured values into an external computer extremely easily. Has characteristics.

[Problems to be solved by the invention]

However, while there are usually many data storage means (hereinafter referred to as data loggers) provided for each measuring instrument, the external computer side that accepts the data stored in the data logger and transmits it to an external computer. established in
Only one data transmitter has an interface function. Therefore, the electric circuit is frequently interrupted every time data is transmitted, and the terminal of the data transmitter, which is the common side, is particularly susceptible to wear and tear, which may impede the requirements for weak signals and high precision measurement. In other words, in general, in electronic equipment, apart from switch systems such as power switches,
It is designed so that there is no interruption of the electrical circuit of the signal system. Therefore, even in commercially available connectors selected for use in these applications, the guaranteed number of times of contact is mainly about 500 times. However, with the above-mentioned measurement data transmission device, if you try to obtain measurement data 10 times per day in a factory with 20 measuring instruments, for example, the guaranteed number of contacts will soon be reached. For example, if the connector is fixed to the data transmitter by soldering or the like, there is a problem in that the replacement work becomes extremely complicated.

[Purpose of the invention]

The present invention was made to solve the above-mentioned conventional problems, and it is possible to transmit data measured by a large number of measuring instruments to a common data processing device with high reliability at all times. It is an object of the present invention to provide a measurement data transmission device that can perform highly accurate data processing even when

[Means for Solving the Problems] The present invention provides a measurement data transmission device for transmitting data measured by a large number of measuring instruments to a common data processing device, the gist of which is shown in FIG. For example, a data storage device connectable to each measuring device for storing measurement data for each measuring device, and a data storage device for inputting data stored in the data storage device to a data processing device during data transmission. an interface device to which the data storage device is connected; and a removably provided interface device.
By providing an internal circuit side connection terminal corresponding to the terminal of the internal circuit, a data storage device side connection terminal corresponding to the terminal of the data storage device, and a relay connector including an electric circuit connecting both the connection terminals. , the above objective has been achieved. Further, in an embodiment of the present invention, the data storage device is connected to the interface device so that the terminal of the data storage device matches the connection terminal on the data storage device side of the relay connector when connected to the interface device. In this way, the data storage device and the interface device can be connected extremely easily and reliably. [Function] In the present invention, a data storage device connectable to each measuring device for storing measurement data for each measuring device;
A measurement data transmission device comprising an interface device to which the data storage device is connected during data transmission for inputting data stored in the data storage device to a data processing device, the interface device having a terminal of its internal circuit. an internal circuit side connection terminal corresponding to the data storage device side connection terminal corresponding to the terminal of the data storage device;
In addition, since the relay connector including the electric circuit connecting the two connection terminals is provided in a detachable manner, the data storage device side connection terminal, which is subject to heavy wear and tear, can be extremely easily attached/detached and replaced together with the relay connector. Therefore, the connection between the data storage device and the interface device can always be maintained in a highly reliable state, making it possible to always perform highly accurate data processing even with weak signals. Become.

【Example】

Embodiments of the measurement data transmission device according to the present invention will be described in detail below with reference to the drawings. As shown in FIG. 2, this embodiment uses a large number of measuring instruments, such as micrometer IC)
A data logger 14 that can be connected to the measuring instrument, for example, via a connector 14A and a cable 14B, for sequentially storing measurement data every 1 to 12 m, and an external electronic computer 1
．． A connector 16A connected to the connector 14C of the data logger 14 and the computer 1 for transmission to the data logger 14.
a data transmitter 16 including a connector 16B connected to the data transmitter 1, which processes data accumulated from the data logger 14 via the data transmitter 16 to calculate quality control data, etc.
6. The micrometers 101 to 10n are connected to a spindle 20, as shown in detail in FIGS. 3 and 4, for example. In addition, a waveform shaping circuit 2 including a detection section 22A and a direction classification circuit or a division circuit as necessary is used to detect the displacement.
An encoder 22 having 2B, a counter 24 that reversibly counts the output signal of the encoder 22, and the counter 24
a display driving device 26 that converts the counted value of the counter 24 into a signal suitable for digital display; a digital display 28 that is driven by the display driving device 26 and displays the counted value of the counter 24 as a measured value; The control unit 30 is provided for holding and clearing the counted value of 24 and the value displayed on the digital display 28, and switching between inches and millimeters. The battery-powered portable data logger 14 connected to the micrometers 101 to 102 (or dial gauges 121 to 12m) as described above has various modes such as calling and output, as shown in detail in FIGS. 3 to 6. various switches 32 for selecting, setting the number of types of measurement articles, specifying the number of one type of measurement article, and the number of measurement points for one measurement article;
, a power switch 34, an input/output unit 40 including data identification means for attaching a data identification code including the article type F i N article number M+ and the measurement location Ni to the called measurement value; It is composed of a storage section 42 for sequentially storing values in correspondence and capable of recalling the stored contents in response to a request from an external computer, and a data display section 44 for displaying the measured value together with the data identification code. There is. This data logger 14 is connected to the micrometer 10 via a cable 14B of a length that is within the range of being portable.
It is possible to connect to the main body of the micrometer 10. Note that this data logger 14 has only a storage function and does not have a calculation function. Also, data logger 14
It only needs to be compatible with the measuring instrument, and there is no need to interface with the electronic computer 18, so the function is simplified and miniaturization is easy. Data is accumulated in the storage unit 42 when the number M1 of first measurement articles F1 having a shape as shown in FIG. 7 is 10, for example.
0 pieces, the number of measurement points N1 of each measurement item is 4, A, B, C, D
The number M2 of second measurement articles F2 having a shape as shown in FIG. 8 is 200, and the number of measurement points N of each measurement article is
2 is A, B, C. If there are six points D, E, and F, the area shown in FIG. 9 is used. The data transmitter 16 is connected to the data logger 1.
It has an interface 7142 function for inputting the stored data of 4 to the electronic computer 18, and
As shown in the figure, the connector 14G of the data logger 14
A connector 16A to which the computer is connected during data transmission, and a connector 16B to which the connector 18'A of the computer 18 is connected are provided. As shown in detail in FIGS. 14 and 15, this data transmitter 16 further includes an internal circuit side connector 50A corresponding to the internal circuit connector 16C, and a data logger corresponding to the connector 14C of the data logger 14. side connector 50B, a printed circuit board 50C on which an electric circuit connecting both connectors 50A and 50B is formed, and the printed circuit board 50C and the data logger side connector 50B.
A relay connector 50 consisting of a holder 50D that holds a holder 50D is detachably provided. Therefore, by frequently replacing the data logger 14, the data logger side connector 50B of the relay connector 50 can be replaced.
When the relay connector 50 is worn out, the operator can easily improve the reliability of the connector by replacing the relay connector 50 without doing any soldering or damaging the internal circuit of the data transmitter 16. can do. A guide 16F for guiding the data logger 14 is further formed in the case 16E of the data transmitter 16, and when connecting the data loker 14 to the data transmitter 16, the connector 14G of the data logger 14 is connected to the relay connector 50. It is designed to naturally match with the data logger side connector 50B. Therefore, the connection between the data logger 14 and the data transmitter 16 is
This can be done easily and reliably. In the above embodiments, the present invention was applied to a measurement data transmission device for a micrometer and a dial gauge, but the scope of application of the present invention is not limited to this, and is applicable to digital display measuring instruments such as calipers etc. It is clear that the invention can be similarly applied to measurement data transmission devices.

【Effect of the invention】

As explained above, according to the present invention, even if the reliability of the connection terminal deteriorates due to frequent attachment and detachment of the data storage device, the reliability of the connection can be easily restored by simply replacing the relay connector. can do. Therefore 1. It has the excellent effect of always being able to perform highly accurate data processing even with weak signals.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the general structure of a measurement data transmission device according to the present invention, FIG. 2 is a block diagram showing the overall structure of an embodiment according to the present invention, and FIG. FIG. 4 is a block diagram showing the circuit configuration of the micrometer and data logger, and FIG. 5 is a diagram showing the connection state of the micrometer and data logger used in FIG. 6 is a plan view, FIGS. 7 and 8 are front views showing an example of an article to be measured and its measurement location, and FIG. 9 is a front view of the data logger used in the above embodiment. 10 is a front view showing the data transmitter used in the embodiment, FIG. 11 is a top view, and FIG. 12 is a bottom view. Figure, 13th
The figure is a vertical cross-sectional view along the xm-xm line in Fig. 10,
The figure is an enlarged vertical cross-sectional view of the relay connector portion of the data transmitter, and FIG. 15 is an exploded perspective view. 101~10n...micrometer, 121~12m
...Dial gauge, 14...Data logger-1 14C...Connector, 16...Data transmitter, 16A, 16G...Connector, 16F...Guide, 18...Electronic computer, 50...・Relay connector, 50A...Internal circuit side connector, 50B...Data logger side connector, 50C...Printed circuit board.

Claims (2)

[Claims] (1) In a measurement data transmission device for transmitting data measured by multiple measuring devices to a common data processing device, a device that can be connected to each measuring device in order to store measurement data for each measuring device. an interface device to which the data storage device is connected during data transmission for inputting stored data in the data storage device to a data processing device; An internal circuit side connection terminal corresponding to the terminal of the internal circuit, a data storage device side connection terminal corresponding to the terminal of the data storage device, and a relay connector including an electric circuit connecting both the connection terminals. Features of measurement data transmission device. (2) A patent in which the data storage device is guided by the interface device so that the terminal of the data storage device matches the connection terminal on the data storage device side of the relay connector when connected to the interface device. A measurement data transmission device according to claim 1.