Voltage collection apparatus and method

Abstract

An embodiment of the invention discloses a voltage collection apparatus and method, wherein the voltage collection apparatus comprises an upper computer, a first relay switching circuit, a first current sensor and an A / D (analog / digital) conversion chip that are electrically connected in sequence, wherein the first relay switching circuit comprises a first relay and a resistor that are in electric connection, an input end of the first relay is electrically connected with the upper computer, a power supply end of the first relay is electrically connected with an external power supply, an output end of the first relay is respectively and electrically connected with an input end of the first current sensor and the resistor, an input end of the first current sensor is electrically connected with the resistor, and an output end of the first current sensor is electrically connected to the AD conversion chip. Compared with the prior art, the voltage collection apparatus provided by the embodiment of the invention can switch between voltage collection range positions through the first relay switching circuit and the first current sensor, is simple and easy to operate, has the advantages of high precision, wide range of collection and low cost, and has high practical and popularization value.

Description

technical field [0001] The invention relates to the field of signal acquisition, in particular to a voltage acquisition device and method. Background technique [0002] The voltage acquisition equipment can be used for the digitization of analog signals and provide them to the upper computer for analysis and processing; it can also be used for the acquisition of switch signals, and the output of switches can be controlled after being judged by the configuration software; it can also realize remote distribution of equipment in different places Control, such as voltage acquisition equipment, is often used in computer room monitoring, power monitoring, industrial automation, environmental protection testing, smart home and Internet of Things and other occasions. Therefore, voltage acquisition equipment has gained more and more people's favor by virtue of its many advantages. [0003] At present, the voltage acquisition equipment on the market ranges from voltage data acquisiti...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a voltage acquisition device and method to solve the problem that the voltage acquisition device in the prior art cannot meet the requirements of high precision, wide acquisition range and high cost at the same time

Images