Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Dynamic diagnosis device and method for crosstalk of multi-channel ADC

A diagnostic device and diagnostic method technology, applied in general control systems, instruments, computer control, etc., can solve problems such as inaccurate data and no way to find out

Active Publication Date: 2018-09-04
CHINA NUCLEAR CONTROL SYST ENG
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the acquisition of a large number of analog signals, multi-channel ADC acquisition circuits are usually used, and crosstalk between multi-channel ADCs is an easy problem. If there is multi-channel crosstalk without knowing it, the collected data may be inaccurate. And there is no way to find out, which leads to serious problems in the use of subsequent data and equipment control

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dynamic diagnosis device and method for crosstalk of multi-channel ADC

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, a dynamic diagnostic device for multi-channel ADC crosstalk includes a data processing unit. The ADC has 8 input channels IN1 to IN8 (only the first input channel IN1 and the eighth input channel IN8 are shown in the figure. ), each channel is connected to the input signal through an input control switch, and each channel is also connected to the ground through a ground control switch and connected to the reference voltage through a reference voltage control switch, and the output signal of the ADC is sent to the data processing through the bus unit, the ADC and the CPU are also connected through a digital isolator, and the digital isolator is used for bus isolation between the ADC and the CPU; the input control switch, reference voltage control switch and ground control switch (hereinafter collectively referred to as "channel switch") All are connected with the data processing unit, and the state of these channel switches is controlled by the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a dynamic diagnosis device and a dynamic diagnosis method for crosstalk of a multi-channel ADC. The dynamic diagnosis device comprises a data processing unit. The ADC has M input channels, and the M is a natural number not less than 2. An output signal of the ADC is sent to the data processing unit. Each channel is connected with an input signal by means of an input controlswitch, is further connected to the ground by means of a grounding control switch, and is connected to a reference voltage by means of a reference voltage control switch. The dynamic diagnosis deviceand the dynamic diagnosis method can quickly diagnose crosstalk among the multi-channel ADC, can complete the ADC interchannel crosstalk diagnosis and channel normal acquisition functions within a cycle, so as to achieve the real-time performance of diagnosis and reliability of data acquisition, and support the design of an acquisition circuit with high diagnostic coverage.

Description

technical field [0001] The invention relates to the technical field of data acquisition, in particular to a dynamic diagnosis device and method for multi-channel ADC crosstalk. Background technique [0002] In the field of industrial control, especially in the field of digital instrumentation and control of nuclear power plants, a large number of analog output sensors will be used, so a large number of analog signals will be collected and monitored in real time through the control system. [0003] The nuclear power field is a field that has particularly high requirements for safety and reliability, so the acquisition system must ensure safety and high reliability. [0004] For the acquisition of a large number of analog signals, multi-channel ADC acquisition circuits are usually used, and crosstalk between multi-channel ADCs is an easy problem. If there is multi-channel crosstalk without knowing it, the collected data may be inaccurate. And there is no way to find out, whic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
Inventor 马权罗琦周静刘明星吴志强任俊如梁建王远兵韩文兴
Owner CHINA NUCLEAR CONTROL SYST ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com