A data acquisition, processing and transmission device for a substation noise cloud image test device

Abstract

The invention discloses a data collecting and processing transmitting device of a noise cloud picture testing device in a transformer substation. The data collecting and processing transmitting devicecomprises a sensor plate, an FPGA (Field Programmable Gate Array), a power source and an upper computer. The power source is connected with the FPGA. The FPGA is connected with the upper computer. The FPGA comprises a data decoding module, a data processing module, an FIFO module and a communication module. The data decoding module is connected with the sensor plate through an external interface.Data received by the data decoding module is transmitted to the upper computer through the data processing module, the FIFO module and the communication module successively. The data collecting and processing transmitting device is lower in cost, low in functional redundancy, and higher in data transmission reliability.

Description

technical field [0001] The invention belongs to the technical field of substation noise testing, in particular to a data collection, processing and transmission device of a substation noise cloud image testing device. Background technique [0002] Accurate separation and measurement of substation internal noise is the key to the control and prevention of substation environmental noise. However, the measurement of substation noise is affected by external environmental factors, including background noise and weather. In the actual measurement, in addition to the noise generated by the sound source under test, there will also be other noises, such as the impact of noise from living and working backgrounds such as the flow of people and traffic around the substation, as well as transient noises such as dog barking and motorcycle sound. Noise, the sum of these noises is called background noise, background noise will affect the accuracy of the measurement. Usually the noise of a...

AI Technical Summary

Problems solved by technology

However, the substation in operation cannot be stopped just because of the measurement of its environmental noise, so the noise measured by a single sound level meter is the superposition of the substation's own noise and other environmental noise

Using a single sound level meter, it is difficult to distinguish the source, distribution, size, spectrum characteristics and other parameters of the internal noise of the substation, which is not conducive to the division of responsibilities for substation equipment noise, and brings inconvenience to the control of substation environmental noise

[0003] Existing volume array test devices need to detect many measuring points, and a large amount of data needs to be processed and transmitted. Due to the need for image superposition, there are high requirements for the reliability of data transmission. The existing volume array test devices Most of the data acquisition and transmission devices use general-purpose data acquisition instruments. The common problems are: the high price leads to high test costs; traditional data acquisition instruments have many redundant functions, and damage to useless functions will also affect the overall performance of the data acquisition instrument. use, resulting in poor reliability of data transmission

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