Low power consumption remote wireless meter-reading module

Abstract

The invention relates to a low power consumption remote wireless meter-reading module which comprises a CPU control unit, a power control unit, a memory cell, an analog-digital conversion unit and a GPRS module; wherein, the power control unit, the analog-digital conversion unit and the GPRS module are connected with the CPU control unit; in the CPU control unit, an infrared windowing module opens an infrared communication window at time intervals, thereby causing the wireless reading meter module to receive data; a timer data-collecting module collects pulses of the meter reading by utilizing interrupt of a timer; a segmented collection and centralized submission module turns on the analog-digital conversion unit at a storage time to collect a working state of the meter reading, stores the working state in the memory cell, and turns on the GPRS module at an upload time to upload data; and the power control unit supplies electricity to the memory cell and the analog-digital conversion unit only at the storage time, and supplies electricity to the GPRS module at the upload time. Through the scheme, low power consumption operation of the remote wireless meter-reading module is realized.

Description

Technical field [0001] The invention relates to the field of wireless meter reading, in particular to a low-power remote wireless meter reading module. Background technique [0002] With the development of urban construction and the increasing scale of residential communities, meter reading has gradually become a prominent problem. The traditional meter reading mode is manual meter reading. The main disadvantage is that manual meter reading is time-consuming and laborious for large and distributed meter readings. It is difficult to report meter reading failures in time, etc., and brings potential safety hazards. Therefore, it is urgent to develop an automatic meter reading system. In different schemes of the automatic meter reading system, the wireless transmission mode requires no wiring and is easy to install. The advantages of it have been paid special attention. [0003] A wireless meter reading system in the prior art, such as Chinese Patent No. 96202204.7, discloses a multi...

AI Technical Summary

Problems solved by technology

But this kind of system faces some problems: the GPRS module in the wireless meter reading module needs a higher power supply voltage, consumes a lot of current when receiving and sending data, and its infrared communication interface needs to accept external Parameter setting also consumes more energy, and the entire wireless meter reading module is installed outdoors and powered by batteries. How to reduce the power consumption of the system and prolong the service life of the battery will have a great impact on the quality of the entire system. If the energy consumption problem of the system cannot be solved well, the battery of the wireless meter reading module needs to be replaced frequently, which is very inconvenient for large meter reading with scattered distribution

[0006] In addition, the current methods to save power consumption of the wireless meter reading system, such as turning on the radio frequency at regular intervals, triggering the reed switch, etc., either limit the working time, and the target operation can only be completed at this specific time, and cannot be completed immediately on demand. If the user is not at home during a certain period of time, the operation cannot be completed; or it must be equipped with a magnet, the operation steps are cumbersome, and the working stability and reliability are low

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