JPS5914044A - Processor for input of data - Google Patents

Abstract

PURPOSE:To attain a large amount of data processing in a fixed processing time, by executing simultaneously AD conversion in parallel with the data processing, and when there are many processing, increasing the processing speed. CONSTITUTION:A selector 5 closes the 1st channel switches S1 of respective input switches 21-2n by instruction from a central processing unit (CPU) 4 to enter input signals of the respective 1st channels. After completing said input, AD converters 31-3n are immediately actuated by an output from a start circuit 6 and respective input signals are simultaneously converted into digital signals. After completing the AD conversion, an end signal is transmitted to the CPU 4 through an address bus A.B and the converted data are collected by the CPU 4 through a data bus D.B. Subsequently, the selector 5 is actuated again, the 2nd channel switches S2 of respective input switches 21-2n are closed, so that the input signals of the 2nd channels are inputted and A/D converted simultaneously and the converted data are collected by the CPU 4.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Field of the Invention The present invention relates to a data input processing device that takes in a large number of analog signal data.

(2) Prior Art Digital processing equipment is known that incorporates a large number of process variables such as temperature. In order to reduce the influence of alternating current noise on the input signal, the analog input signal is converted into a digital signal using an integral type (1) AD converter or the like.

However, especially integral type A/D converters.

Since a large amount of integration time is required, it is difficult to simultaneously convert a large amount of data into digital data at high speed.0 (3) Purpose of the Invention The object of the present invention is to provide a data input system that can input a large amount of data at high speed. The purpose of the present invention is to provide a processing device.

(4) Embodiment of the Invention FIG. 1 is an explanatory diagram showing an embodiment of the invention.

In the figure, 11. . . , 1n are input input switchers each supplied with a plurality of n-channel analog input signals; 31. . . , 3n indicates each input switch 21. ...
.

For example, an integral type A-D converter that sequentially converts input signals extracted by 2n into digital signals.

4 is each A-D converter 31. . . , 3n conversion data are collected through the data bus DB, and are also sent to the input switch 21 . . . , 3n through the address bus A-4+. ....

Selector 5.2n controls the selector 5.2n. A-D converter 31°...
. , 3n is a central processing unit such as a microconbeater that controls the start circuit 6 that performs start control.

The operation is as follows.

In response to instructions from the central processing unit 4, the selector 5 selects each input switch 21. ..., 2n each first channel switch S1
is closed, and the input signal of each first channel is taken in. Immediately after the capture is completed, the start circuit 6
-D converter 31. ..., 3rl is working.

Each input signal is simultaneously converted to a digital signal.

The data bus D-B is converted by the central processing unit 4.
collected through.

Next, the selector 5 operates again, and each input switch 21,...
, 2n's second channel switch S2 is closed, and the input signal of each second channel is taken in.

At the same time, the signals are A-D converted and collected in the central processing unit 4.

The same operation is repeated thereafter, and the input data is captured and used for necessary purposes.

(5) Summary of the invention As described above, the present invention relates to a central processing unit.

This is a data input processing device in which a plurality of input signals are simultaneously converted into digital signals by a plurality of A-D converters and taken in by a selector and a start circuit.

(6) Effect of invention Because A-D conversion is done in parallel at the same time.

When the number of processing points is large, processing speed is significantly improved.

A large amount of data can be processed in a fixed processing time.

In addition, only a single selector and start circuit are required, which makes the device configuration simpler and cheaper, and has high reliability.

[Brief explanation of drawings]

FIG. 1 is a configuration explanatory diagram showing an embodiment of the present invention. 11-1n...input terminal, 21-2n...input switch. 31-3n...A-D converter, 4...Central processing unit, 5...Selector, 6...Start circuit Patent applicant Chino Seisakusho Co., Ltd. (5)

Claims (1)

[Claims] 1. A plurality of input switchers that each switch and select a plurality of input signals, a plurality of A-D converters that sequentially convert the input signals taken out by each input switch into digital signals, and each A-D converter. A data input processing device comprising a central processing unit that collects the output of the input switch and controls the input switch and the A-D converter.