A multi-channel signal synchronous sampling system, method, device and medium
A synchronous sampling, multi-channel signal technology, applied in the direction of code conversion, electrical components, analog-to-digital converters, etc., can solve the problems of increased hardware cost, high hardware cost, increased work energy consumption, etc., to avoid process mismatch, reduce Hardware cost, the effect of reducing work energy consumption
Active Publication Date: 2021-09-03
HANGZHOU VANGO TECH
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Problems solved by technology
Due to the high hardware cost of the ADC and its high power consumption, each input signal corresponds to an ADC, which greatly increases the hardware cost and greatly increases the working energy consumption.
In addition, due to errors in the process of manufacturing ADCs, there is a problem of process mismatch among multiple ADCs, resulting in the inability of multiple ADCs to sample at the same time
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[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of this application.
[0041] The core of the present application is to provide a multi-channel signal synchronous sampling system, which is used to reduce hardware costs, reduce work energy consumption, and avoid the problem of process mismatch. In addition, the core of the present application is to provide a multi-channel signal synchronous sampling method, device and medium
[0042] In order to enable those skilled in the art to better understand the solution of the present applicat...
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This application discloses a multi-channel signal synchronous sampling system, method, device and medium. The system includes a digital-to-analog converter and a modulator and a demodulator respectively connected to the digital-to-analog converter. The modulator is used to convert The multi-channel input signal is modulated into a single-channel analog signal, the digital-to-analog converter is used to convert the single-channel analog signal into a digital signal, and the demodulator is used to demodulate the digital signal into multiple outputs corresponding to the multiple input signals according to the codec matrix Signal. Since the regulator modulates multiple input signals into a single analog signal, only one digital-to-analog converter is required to sample a single analog signal to complete synchronous sampling of multiple input signals, thus reducing hardware costs and Work energy consumption. In addition, since only a single digital-to-analog converter is used for sampling, the problem of process mismatch between multiple digital-to-analog converters is avoided, thereby ensuring that the digital-to-analog converters sample multiple input signals at the same time.
Description
technical field [0001] The present application relates to the technical field of power monitoring, in particular to a multi-channel signal synchronous sampling system, method, device and medium. Background technique [0002] With the continuous development of integrated circuit technology, the field of power monitoring is becoming increasingly integrated and intelligent. In order to ensure the real-time and The three-phase voltage, three-phase current and zero line current are sampled in order to obtain the relevant information of the power grid and achieve the purpose of relay protection and load monitoring. [0003] Such as figure 1 As shown, at present, ADCs corresponding to the number of input signals are usually used to sample multiple signals separately, and the sampling clocks are synchronized at the same time to ensure that multiple ADCs respectively sample multiple signals at the same time. Since the hardware cost of the ADC is relatively high and its power consum...
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IPC IPC(8): H03M3/00H03M1/12
CPCH03M1/12H03M3/00
Inventor 王斯琪刘禹延唐中谭年熊
Owner HANGZHOU VANGO TECH