Analog and digital signal acquisition and chain control device

A digital signal and interlocking control technology, applied in the direction of electrical program control, sequence/logic controller program control, etc., can solve the problem of single function and achieve high promotion value and wide application range

Active Publication Date: 2016-07-06
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing analog and digital signal acquisition equipment can only complete the acquisition of one signal and has a single function, and provides an analog and digital signal acquisition and chain control device

Method used

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  • Analog and digital signal acquisition and chain control device
  • Analog and digital signal acquisition and chain control device
  • Analog and digital signal acquisition and chain control device

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Experimental program
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specific Embodiment approach 1

[0052] Specific implementation mode one: the following combinationfigure 1 Describe this embodiment, the analog digital signal acquisition and interlocking control device described in this embodiment, it is used for collecting the signal that external equipment 1 outputs, and the signal that this external equipment 1 outputs includes analog signal and digital signal, and it comprises analog signal acquisition circuit 3. Digital signal acquisition circuit 4, relay unit 5 and digital signal processor 6,

[0053] The analog signal acquisition circuit 3 provides a 32-way analog signal acquisition capability, which is used to collect the analog signal output by the external device 1 and process it and then send it to the digital signal processor 6;

[0054] The digital signal acquisition circuit 4 provides 16 channels of digital signal acquisition capability, and is used to collect the digital signal output by the external device 1 and process it and send it to the digital signal pr...

specific Embodiment approach 2

[0059] Specific implementation mode two: the following combination figure 1 Describe this embodiment mode, this embodiment mode will further describe embodiment one, this embodiment mode also includes USB interface 7 and upper computer 2,

[0060] The upper computer 2 transmits data and command signals with the digital signal processor 6 through the USB interface 7 .

specific Embodiment approach 3

[0061] Specific implementation mode three: the following combination figure 1 and figure 2 Describe this embodiment mode, this embodiment mode is further described to embodiment mode one or two, the analog signal acquisition circuit 3 described in this embodiment mode is composed of an analog multi-way switch circuit 3-1, an operational amplifier 3-2 and an AD conversion circuit 3-3 composition,

[0062] The analog multi-channel switch circuit 3-1 is used to collect the analog signal output by the external device 1 and switch to the AD conversion circuit 3-3 after one of the multi-channel analog signals passes through the operational amplifier 3-2, and the AD conversion circuit 3-3 The output digital signal is sent to the digital signal processor 6 .

[0063] In this embodiment, the analog multi-channel switch circuit 3-1 is implemented by using a MAX307 chip, which can switch one of the 32 analog signals to the AD conversion circuit. Operational amplifier 3-2 adopts AD620...

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Abstract

The invention discloses an analog and digital signal acquisition and interlocking control device and belongs to the technical field of signal acquisition and control. The analog and digital signal acquisition and interlocking control device is used for solving the problems that an existing analog and digital signal acquisition device can only acquire one type of signals and is single in function. An analog and digital signal acquisition circuit of the analog and digital signal acquisition and interlocking control device provides the capacity for acquiring 32 paths of analog signals, and analog signals output by a peripheral are acquired and transmitted to a digital signal processor after being processed; a digital signal acquisition circuit provides the capacity for acquiring 16 paths of digital signals and used for acquiring digital signals output by the peripheral and transmitting the digital signals to the digital signal processor after processing the digital signals; the digital signal processor judges the current state of the external device and outputs a control signal to a relay unit, and the relay unit has on-off control over the external device through at most eight paths of relays; the digital signal processor simultaneously acquires the state signals of the relays of the relay unit. The device is used for acquiring the analog and digital signals and having interlocking control over the external device.

Description

technical field [0001] The invention relates to an analog and digital signal acquisition and chain control device, belonging to the technical field of signal acquisition and control. Background technique [0002] With the development of science and technology and the improvement of market demand, there are more and more analog signal acquisition products and digital signal acquisition products, and their product quality is also constantly improving. The development of chip technology has continuously improved the accuracy and speed of analog signal acquisition, and at the same time, the capacity of digital signal acquisition has also been continuously increased, and the anti-interference performance has been continuously improved. However, most of the current products can only complete one kind of signal collection, and cannot realize switch control on related equipment according to the signal collection results during the signal collection process. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/04
Inventor 林连雷姜守达
Owner HARBIN INST OF TECH
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