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A method of collecting signals and a device with multi-channel signal collection

A signal acquisition, multi-channel technology, used in signal transmission systems, electrical signal transmission systems, instruments, etc., can solve problems such as misjudgment by digital signal comparators, inability of control units to receive signal values, hidden dangers in product quality detection, etc. The effect of fast acquisition, improved convenience, and increased scanning speed

Active Publication Date: 2018-02-27
GUANGZHOU HUAXIN ELECTRONICS TECH
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Problems solved by technology

Although this process shortens the signal sampling time, since the result obtained by the comparison of the digital signal comparator is only 0 or 1, the signal received by the control unit from the digital signal comparator is only 0 or 1, and the control unit cannot receive the actual signal. The signal value of
When some analog signals are very close to the critical point of the reference level, it will lead to misjudgment by the digital signal comparator, which will bring hidden dangers to product quality inspection, which is not conducive to the actual production to judge the quality of the test product

Method used

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Embodiment Construction

[0045] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions protected by the present invention will be clearly and completely described below using specific embodiments and accompanying drawings. Obviously, the implementation described below Examples are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this patent.

[0046] In this embodiment, a method for collecting signals is provided, please refer to figure 1 as shown,

[0047] S1: The signal amplification module amplifies the initial signal to obtain the amplified signal;

[0048] Specifically, the initial signal here refers to the initial analog signal, and the signal amplification module amplifies the initial analog signal, which is equivalent ...

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Abstract

The present invention provides a method for collecting signals and a device with multi-channel signal collection, wherein the MCU module first collects the analog signal amplified by the signal amplification module, and then obtains the compared digital signal through the signal comparison module, thus realizing the The combination of digital signal and analog signal acquisition method avoids the single acquisition of digital signal and the inability to know the amount of analog signal. The rapid acquisition of digital circuits and the complete acquisition of analog signals are fully combined and applied to infrared touch, which improves the scanning speed of infrared touch and greatly improves the convenience of production.

Description

technical field [0001] The invention relates to the field of data acquisition, in particular to a method capable of collecting signals at high speed and a device with multi-channel signal acquisition. Background technique [0002] In the prior art, before collecting the AD signal, the analog signal is amplified first, and then the amplified analog signal is subjected to analog-to-digital conversion, and is transmitted to the control unit through the bus for information processing. In this process, it takes a long time to receive samples, which not only wastes system resources, but also affects the operating efficiency of the entire system. [0003] In the prior art, there is another way of signal sampling, which is to pass the analog signal through a digital signal comparator, compare it to get 0 or 1, and then transmit it to the control unit for information processing. Although this process shortens the signal sampling time, since the result obtained by the comparison of t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08C19/00
Inventor 薛琛左春生刘辉武谢旺张利财徐文杰
Owner GUANGZHOU HUAXIN ELECTRONICS TECH
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