Signal acquisition method and device having multi-channel signal acquisition

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

Active Publication Date: 2014-11-19
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

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  • Signal acquisition method and device having multi-channel signal acquisition
  • Signal acquisition method and device having multi-channel signal acquisition

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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 invention provides a signal acquisition method and a device having multi-channel signal acquisition. An analogue signal, which is amplified through a signal amplification module, is acquired through an MCU module. A compared digital signal is obtained through a signal comparison module. An acquisition manner of combination between a digital signal and the analogue signal is achieved so that a problem that only the digital signal is acquired and an analogue semaphore cannot be obtained is avoided. Rapid acquisition of a digital circuit and complete acquisition of the analogue signal are both achieved and are fully combined with each other. The method is applied in infrared touching and can increase a scanning speed of the infrared touching so that convenience in production is greatly improved.

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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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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