Portable data acquisition and analysis instrument

Abstract

The invention discloses a portable data acquisition and analysis instrument, which comprises a core control unit, a switch quantity acquisition unit, an analog quantity acquisition unit, a communication unit, a storage battery power supply unit and a notebook computer, wherein I / O ports of the switch quantity acquisition unit and the analog quantity acquisition unit are in bidirectional connection with corresponding ports of the core control unit, and a communication port of the core control unit is connected with the notebook computer via the communication unit; and a power supply port of the storage battery power supply unit is connected with a power supply end of the core control unit, the switch quantity acquisition unit, the analog quantity acquisition unit and the communication unit. The portable data acquisition and analysis instrument is provided with 8-channel switch quantity and 8-channel analog quantity synchronous acquisition, can meet various test requirements, increases the test flexibility, reduce the invested cost of instruments and equipment while ensuring the precision of data acquisition, adds a data analysis and processing function, brings convenience for the testers, does not require external power supply for supplying power, omits the workload of connecting and guiding a power line, and reduces the difficulty of work.

Description

technical field [0001] The invention belongs to the field of automatic measurement and control, and in particular relates to a portable data acquisition and analysis instrument. Background technique [0002] There are a large number of production equipment in production enterprises such as power plants. In order to ensure safe and efficient production, the production systems of these enterprises need to conduct regular performance tests to determine system performance, such as power switching tests of uninterruptible power supply systems, Valve closing time test, etc. Performance tests require real-time collection of process variable parameters, which requires data collection instruments. The test personnel use the data acquisition instrument to record the change curve of each parameter in the test process, analyze the system performance through the change trend of the curve, and draw the test conclusion. Traditional data acquisition instruments are expensive, and the pric...

AI Technical Summary

Problems solved by technology

Traditional data acquisition instruments are expensive, and the price is generally in the tens to hundreds of thousands, and the input cost is very high; the volume is large and the weight is heavy, and because the test wiring is often carried out in the high-level equipment electronics room, it is very laborious and time-consuming to carry the instrument; it is necessary to provide 220V Only AC power supply can work. Most of the power jacks in the test site are located on the wall or power cabinet. During the test, the 220V power supply needs to be led to the vicinity of the instrument, which increases the difficulty of the test personnel and reduces the work efficiency.

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