Special module for intelligent water meter based on NB-IOT modem

Abstract

The intelligent water meter control panels, composed of MCU micro-power processors, of conventional intelligent water meters are additionally provided with NB-IOT communication modules, so the conventional intelligent water meters have the problems of high cost, complicated structure, large power consumption and the like; and ARM cores are arranged in NB-IOT modems so as to realize metering and communication control to the intelligent water meters. However, the invention provides an integrated special NB module for a water meter. The integrated special NB module provided by the invention is composed of a water meter mechanical counter, a direct reading program, a pulse counting module and program, an expandable interface and program, a valve control module, a stepped water price billing module, a tap water thief-proof and water-leakage detection safety intelligent module, a tap water alarm received information processing module and a counter-current alarming module, and integrates thefunctions of a data communication protocol module, a data encryption module and program and an NB-IOT communication module into a chip. The integrated special NB module provided by the invention has the advantages of clear principle, convenient use, low power consumption, small size, high reliability, etc., and improves the problems of high cost, large power consumption and the like of conventional Internet-of-Things intelligent water meters composed of NB modules.

Description

technical field [0001] The invention relates to a water meter module, in particular to an intelligent water meter-specific module based on an NB-IOT modem. Background technique [0002] The 2016 3GPP meeting formulated the industry standard of NB-IOT (part of R13), and launched commercial NB modules in 2017. According to the 3GPP agreement of NB-IOT, the traditional Internet of Things transmission adopts the GPRS technology of 2G network, due to its The transmission power is high, the power consumption is large, and the link calculation is not high enough, resulting in narrow coverage area, high cost, and high power consumption. It is difficult to meet the technical requirements of smart water meters that use battery power and run for ten years. [0003] The above problems can be solved by using the NB-IOT communication technology of the Internet of Things. This is a new technology and product. At present, the application method of the NB-IOT module at home and abroad is the...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an ARM core in an MCU composed of a plurality of ARMs inside the NB-IOT modem is defined as a smart water meter ARM, and the water metering and billing function module, the reverse flow detection function module, the voltage detection function module, The data storage function module, the anti-theft function module, the data transmission function module, etc., are integrated with the NB-IOT modem chip in the ARM, and the smart water meter of the Internet of Things looks like an independent smart water meter MCU. The smart water meter has all the functions and can complete the NB-IOT communication function. The NB-IOT communication module dedicated to the smart water meter does not need to attach other MCUs outside the NB-IOT communication module. The present invention solves the problem of communication between the MCU intelligent control board and the NB-IOT. The Internet of Things smart water meter composed of modules has problems such as high cost, complex structure, high power consumption, and high battery cost.

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