A device for wirelessly transmitting analog data

A wireless data and wireless transmission technology, applied in the field of data communication, can solve problems such as unstable signals, complex pipelines, and difficult on-site wiring, and achieve the effects of improving versatility, reducing construction difficulty, and reducing operational errors

CN105162488BActive Publication Date: 2018-01-02SHANDONG SANJIANG ELECTRONICS ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-01-02

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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.
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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...

Examples

Embodiment Construction

[0027] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0028] refer to figure 1 , the device for wirelessly transmitting analog data of the present invention includes: 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, wherein:

[0029] (1) The analog signal input terminal is connected to the signal of the terminal sensor. The analog signal input terminal is used to obtain the data collected by the terminal sensor. The analog signal input terminal includes: multiple 4-20mA signal input terminals and multiple 0-10V signal input terminals , the multi-channel means greater than or equal to 3 channels;

[0030] (2) The analog signal output terminal is connected to the signal of the end effector. The analog signal output terminal is used to transmit contro...