A device for wirelessly transmitting analog data

Abstract

The invention discloses a device for wirelessly transmitting analog data, comprising: several analog signal input terminals, several analog signal output terminals, a digital-to-analog conversion module, a data processing module, and a wireless data sending and receiving module (frequency 433M / 490M). The analog conversion module converts the analog signal code transmitted from the analog signal input terminal into a digital signal. After the digital signal is processed by the data processing module, it is sent to the field control box by the wireless data sending and receiving module to complete the data collection and uploading process; wireless data transmission The receiving module receives the digital signal sent by the field control box. The digital signal is processed by the data processing module and then transmitted to the digital-to-analog conversion module. The digital-to-analog conversion module converts the digital signal into an analog signal. The analog signal is output by the analog signal output terminal. End control process. The invention is beneficial in that: the wireless transmission of analog data is realized through the digital-to-analog conversion module, and the construction difficulty is effectively reduced.

Description

technical field [0001] The invention relates to a wireless transmission device, in particular to a device for wireless transmission of analog data, which belongs to the technical field of data communication. Background technique [0002] In the central air-conditioning management system, the main input and output signals of instruments, sensors, controllers, and actuators are 4-20mA analog signals or 0-10V analog signals, but wireless data transmission requires digital signals, so central air-conditioning management The implementation of the system can only complete data interaction through wiring according to the routine. [0003] In the central air-conditioning management system, due to the large number and scattered sensors, and the horizontal and vertical complexity of the pipelines, problems such as difficult field wiring, unsightly wiring, and unstable signals have arisen. Contents of the invention [0004] In order to solve the deficiencies of the prior art, the ob...

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Problems solved by technology

[0002] In the central air-conditioning management system, the main input and output signals of instruments, sensors, controllers, and actuators are 4-20mA analog signals or 0-10V analog signals, but wireless data transmission requires digital signals, so central air-conditioning management The implementation of the system conventionally can only complete data interaction through wiring

[0003] In the central air-conditioning management system, due to the large number of sensors and scattered, coupled with the horizontal and vertical complexity of the pipeline, this has caused problems such as difficult on-site wiring, unsightly wiring, and unstable signals.

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