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Alternating-current/direct-current signal power integrated measuring device and method

A technology of DC signal and measurement device, which is applied in the direction of electric power measurement by applying digital technology, can solve the problems that DC measurement device cannot be applied to AC measurement field, increase the difficulty of use and equipment cost, and cannot apply AC power measurement device, etc., to achieve The measurement method is simple and convenient, the design is ingenious, and the effect of low cost

Pending Publication Date: 2019-05-14
NANJING COLLEGE OF INFORMATION TECH
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AI Technical Summary

Problems solved by technology

[0002] In the field of power signal measurement, split devices are often used, that is, AC power measurement devices cannot be used in the field of DC measurement, and DC measurement devices cannot be used in the field of AC measurement; in some application places where both AC and DC exist, two devices need to be exchanged to measurement, which increases the difficulty of use and equipment cost

Method used

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  • Alternating-current/direct-current signal power integrated measuring device and method
  • Alternating-current/direct-current signal power integrated measuring device and method
  • Alternating-current/direct-current signal power integrated measuring device and method

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Embodiment 1

[0028] An AC / DC signal power integrated measurement device provided by the present invention, the input signal is an AC / DC signal, such as figure 1 As shown, it includes a voltage sampling circuit, a current sampling circuit, a hysteresis comparison circuit, an A / D conversion module and a controller;

[0029] The voltage sampling circuit is used to collect the voltage signal of the input signal; the voltage sampling circuit includes a step-down unit and a level raising unit connected in sequence, the step-down unit is used to step down the input signal, and the level raising unit is used to increase the voltage of the input signal. The reference zero level of the input signal after the step-down is raised from zero to the reference voltage, and the value of the reference voltage is the central value of the input range of the A / D conversion module;

[0030] The current sampling circuit is used to collect the current signal of the input signal;

[0031] The hysteresis compariso...

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Abstract

The invention discloses an alternating-current / direct-current signal power integrated measuring device and method, which is used for outputting the power of an input signal which is an alternating-current / direct-current signal. The device comprises a voltage sampling circuit, a current sampling circuit, a hysteresis comparison circuit, an A / D conversion module and a controller; the voltage sampling circuit is used for collecting a voltage signal of the input signal; the current sampling circuit is used for collecting a current signal of the input signal; the hysteresis comparison circuit is used for judging the type of the input signal; the A / D conversion module is used for converting simulated voltage and current signals into digital signals; and the voltage sampling circuit is connectedwith the hysteresis comparison circuit and the A / D conversion module; the current sampling circuit is connected with the A / D conversion module; and the hysteresis comparison circuit and the A / D conversion module are connected with the controller. The voltage and the current of the input signal are sampled, and the hysteresis comparison circuit is adopted to judge the type of the input signal so asto realize the measurement of alternating-current / direct-current signal power.

Description

technical field [0001] The invention belongs to the field of AC / DC signal power measurement, and in particular relates to an AC / DC signal power integrated measurement device and method. Background technique [0002] In the field of power signal measurement, split devices are often used, that is, AC power measurement devices cannot be used in the field of DC measurement, and DC measurement devices cannot be used in the field of AC measurement; in some application places where both AC and DC exist, two devices need to be exchanged to measurement, which increases the difficulty of use and equipment costs. Contents of the invention [0003] The object of the present invention is to address the above existing problems and deficiencies, and propose an AC / DC signal power integrated measurement device and method with simple structure, simple measurement method, high measurement accuracy and low cost. [0004] In order to achieve the above object, the technical solution adopted by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R21/133
Inventor 兴志高玉玲董庆军
Owner NANJING COLLEGE OF INFORMATION TECH
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