Ultrasonic water meter signal converter

Abstract

The invention discloses an ultrasonic water meter signal converter. The ultrasonic water meter signal converter is provided with an LoRa signal converting module, an MCU, an NBIoT signal converting module, a SIM SMT circuit and an NB antenna module; the LoRa signal converting module receives signals of an ultrasonic water meter and converts the signals into transmission data; the MCU recognizes and stores the transmission data, and forwards the transmission data to the NBIoT signal converting module; the NBIoT signal converting module receives the data sent by the MCU, converts the data into NBIoT signals, and sends the NBIoT signals to an antenna; the SIM SMT circuit provides identity information for the NBIoT signals; the NB antenna module sends the NBIoT signals to a signal terminal; the MCU is connected to the LoRa signal converting module and the NBIoT signal converting module in a both-way mode separately, and the NBIoT signal converting module is further connected to the SIM SMTcircuit and the NB antenna module in a both-way mode separately. The ultrasonic water meter signal converter has the advantages that all equipment accessible to an NBIoT signal network can directly receive the data of the ultrasonic water meter, accordingly the spreading range of the meter data is wider, the meter data is collected more timely and conveniently, and the overall construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of signal conversion circuits, in particular to an ultrasonic water meter signal converter. Background technique [0002] Flow meters that automatically read data have become more and more popular, but the flow water meter needs to send the signal to the management center after reading the data, so the signal sending and receiving is particularly important, while the traditional ultrasonic water meter antenna adopts the scheme of receiving and sending All the signals are the same radio frequency signal, which only realizes the purpose of changing the underground water meter signal into a ground wireless signal, but the ultrasonic signal itself has no countermeasures for its own defects. [0003] Existing water meter signals generally use low-cost LoRa signals, but LoRa signals also have the disadvantage of low popularity. As a private network used in the region, the data sent by the water meter antenna is se...

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Problems solved by technology

[0002] Flow meters that automatically read data have become more and more popular, but the flow water meter needs to send the signal to the management center after reading the data, so the signal sending and receiving is particularly important, while the traditional ultrasonic water meter antenna adopts the scheme of receiving and sending The signals are all the same radio frequency signal, which only realizes the purpose of changing the underground water meter signal into a ground wireless signal, but the own defects of the ultrasonic signal have not made a countermeasure

[0003] Existing water meter signals generally use low-cost LoRa signals, but LoRa signals also have the disadvantage of low popularity. As a private network used in the region, the data sent by the water meter antenna is severely limited by the transmission range and application scenarios. If the receiving radio frequency of the antenna can be improved to a long-distance transmission and widespread radio frequency transmission, the use effect of the water meter antenna can be greatly improved

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