Data sampling method and sampling system

A data sampling and data technology, applied in the direction of analog-to-digital converter, analog-to-digital conversion, electrical components, etc., can solve the problems of inability to extend the signal to other devices, inability to guarantee correctness, large space occupation, etc., to ensure effective performance and stability, safe output, and low cost

Inactive Publication Date: 2016-10-26
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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Problems solved by technology

Therefore, there are the following problems: 1. There is no redundancy in signal acquisition, and the correctness of the collected signal cannot be guaranteed. This method cannot be used in applications with safety requirements for signal acquisition.
2. When multiple devices i

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[0040] The present invention will be further described below with reference to the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0041] like figure 2 As shown in the figure, a data sampling method in this embodiment includes the following steps: S1. Sampling data through a sensor to obtain sampled data; S2. Sending the sampled data to a first processing unit for calculation to obtain a first result, and at the same time, the sampling The data is sent to the second processing unit for calculation to obtain the second result, and the first processing unit and the second processing unit perform the same calculation processing on the sampled data; S3. Check whether the first result and the second result are the same, if they are the same, the first The result is correctly output to the communication bus. In step S1, data is sampled by more than one identical sensor to obtain redundant sampled...

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Abstract

The invention discloses a data sampling method. The data sampling method includes the following steps that: S1, data are sampled through a sensor, so that sampling data can be obtained; S2, the sampling data are sent to a first processing unit, so that the first processing unit can carry out calculation to obtain a first result, at the same time, the sampling data is sent to a second processing unit, so that the second processing unit can carry out calculation to obtain a second result, the first processing unit and the second processing unit carry out the same calculation processing on the sampling data; and S3, whether the first result and the second result are identical is verified, if the first result and the second result are identical, the first result is correctly outputted to a communication bus. The invention also discloses a corresponding sampling system. The sampling system comprises a sensor, an A/D conversion unit and a calibration output module which are connected with one another sequentially. The data sampling method and the sampling system of the invention can verify results, automatically identify wrong data and ensure the safety and correctness of output data. The data sampling method and the sampling system of the invention have the advantages of multi-redundancy performance, high stability, flexibility in expansion, convenience and high integration.

Description

technical field [0001] The invention relates to the field of data sampling and processing, in particular to a data sampling method and a sampling system. Background technique [0002] At present, the signal acquisition system usually adopts three steps: sensor acquisition, signal isolation sampling, and sending to the CPU for processing. This method is simple and intuitive. Such as figure 1 As shown, each device (device A, device B, ..., device X) in the signal acquisition system has its own signal sensor installed separately, and the signal is collected and processed separately; when a new device in the system needs to use the signal , the signal sensor needs to be reinstalled. Therefore, there are the following problems: 1. There is no redundancy in signal collection, and the correctness of the collected signals cannot be guaranteed. This method cannot be used in application occasions with safety requirements for signal collection. 2. When multiple devices in the system...

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Application Information

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IPC IPC(8): H03M1/12
CPCH03M1/1245
Inventor 陈庆邵跃虎酉佳余庆吴雷雷胡淼
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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