Wireless data transmission intelligent remote water meter based on ultrasonic modulation

Abstract

The invention relates to a wireless data transmission intelligent remote water meter based on ultrasonic modulation. The wireless data transmission intelligent remote water meter comprises a connection mechanism, a mechanical water meter, a data reading assembly, a battery assembly and an ultrasonic assembly, wherein the ultrasonic assembly comprises a single chip microcomputer, an ultrasonic signal modulation and demodulation chip, a forward error correction encoding and decoding chip, an ultrasonic signal switching circuit and an ultrasonic transmitting-receiving energy converter; a data reading manner of the data reading assembly is any one of pulse direct reading, photoelectric direct reading and camera shooting direct reading. The wireless data transmission intelligent remote water meter based on the ultrasonic modulation has the following advantages that the characteristic that the field installation is convenient of an existing wireless intelligent remote water meter can be remained, and meanwhile a phenomenon that the quality of wireless signals of certain existing wireless intelligent remote water meters is influenced by weathers, wireless frequency band crosstalk, building structures and the like can be avoided at the same time; the transmission quality of the signals is improved and the post-period maintenance working amount is reduced.

Description

technical field [0001] The invention relates to an intelligent water meter, in particular to an intelligent remote transmission water meter based on ultrasonic modulation for wireless data transmission. Background technique [0002] At present, there are two data transmission methods of intelligent remote water meters: wired transmission and wireless transmission: wired transmission is mainly based on M-bus bus, 485 bus and other technologies; wireless transmission is mainly based on 470MHz-510MHz frequency band, ZigBee, GPRS, LTE and other technologies. [0003] The signal transmission quality of the wired intelligent remote water meter is better than that of the wireless transmission, but it needs on-site wiring. It is suitable for the occasions where the PVC wiring pipes have been arranged on the site of the residential buildings, and the application occasions where the PVC pipes are not pre-installed in the old residential areas. Installation, The construction is more co...

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Problems solved by technology

[0003] The signal transmission quality of the wired intelligent remote water meter is better than that of the wireless transmission, but it needs on-site wiring. It is suitable for the occasions where the PVC wiring pipes have been arranged on the site of the residential buildings, and the application occasions where the PVC pipes are not pre-installed in the old residential areas. Installation, The construction is more complicated;

[0004] Smart wireless remote water meters based on 470MHz~510MHz frequency band, ZigBee, GPRS, LTE and other wireless technologies are simple and convenient for on-site construction, but the quality of wireless signal transmission is affected by invariable factors such as weather, wireless frequency band crosstalk, and building structure (cement and steel bars). Large, the workload of on-site investigation before construction is relatively large, and the workload of network maintenance in the later stage is also relatively large

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