Task scheduling method of small multi-channel data recorder

A data recorder and task scheduling technology, applied in the recording of measured values, instruments, measuring devices, etc., can solve the problems of single function, high price, lack of versatility, etc., to achieve convenient data reading, small size, real-time strong effect

Active Publication Date: 2013-06-05
BEIJING INFORMATION SCI & TECH UNIV +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0009] The purpose of the present invention is to provide a small multi-channel data recorder in order to overcome the defects of the existing data recorder such as single function, high price and lack of versatility.

Method used

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  • Task scheduling method of small multi-channel data recorder
  • Task scheduling method of small multi-channel data recorder
  • Task scheduling method of small multi-channel data recorder

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Embodiment Construction

[0019] Such as figure 1 As shown, the small multi-channel data recorder provided by the present invention includes: an analog input module, a data acquisition module, a main control chip module, a human-computer interaction module, a communication interface, and an output interface.

[0020] The analog input module is connected through terminal blocks, and is responsible for transmitting the analog output of the sensor to the data acquisition module; the data acquisition module is mainly composed of an analog channel selection switch CD4067BE, an AD converter driver ADA4941 and an 18-bit A / D converter AD7982. Adjust the channel of the transmitted analog signal, and convert the analog signal into a digital signal under the control of the main control chip; the main control chip module uses AT91SAM9263 whose core is ARM920T as the main control chip of the recorder, and is equipped with peripheral devices ; The main control chip module uses a data storage, the data storage uses 6...

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Abstract

The invention relates to a task scheduling method of a data recorder. An ARM920T core processor is used as a master control chip of the data recorder; an 18-bit A / D chip is used for acquiring sensor data output by as many as 32 paths of analogue signals at the most and inputting the acquired signals into a CPU (central processing unit); the sensor data is encrypted and resolved in real time in the CPU; and the data recordercan run independently with an own power supply when an external power supply is failed, and also can perform autonomous multi-machine communication. The data recorder provided by the invention can acquire and store the data of multiple sensors on industrial instruments, provide comprehensive data for researching running conditions of the instruments, simultaneously facilitate detection and maintenance of devices, improve production level and provide effective running recording and control measures for related manufacture factories.

Description

technical field [0001] The invention relates to a task scheduling method of a data recorder, in particular to a small multi-channel data recorder with strong versatility applied in complex industrial sites. Background technique [0002] Recording instrument is an important tool for detecting and recording various data in the industrial production process. With the rapid development of microelectronics integration technology, microcomputer technology, and digital technology, the research and development industry of data recording and storage has also developed faster. Major companies (such as HP, TEK, etc.) have invested heavily in research, Develop this type of instrument in order to take the lead in occupying this technical field. [0003] The storage of the current data logger is no longer what it used to be. It is no longer a low-speed recorder that only generates curves through motor drive or a medium-speed recorder that uses thermal recorders and beam galvanometers. A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D9/28
Inventor 苏中李擎刘宁
Owner BEIJING INFORMATION SCI & TECH UNIV
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