Low power consumption method based on Lora communication device

Abstract

The invention discloses a low power consumption method based on a Lora communication device. A Lora module is provided with a wireless serial port module, and a single-chip microcomputer used for controlling the working mode of the Lora communication device outputs a working mode control signal to the wireless serial port module through an I / O port. The power consumption of the Lora and the application system is reduced by the single-chip microcomputer and the design of a high-efficiency power circuit, long-time power supply of the whole application system using the Lora technology can be realized by using a button cell, thereby saving the energy of the electric supply grid, reducing the load of the electric supply grid, 50 kilowatt hours of electric energy can be saved by each system per year, meanwhile the wiring installation cost of the system for connection with the electric supply grid is eliminated, the hardware is simple to assemble, and the operation time is shortened.

Description

technical field [0001] The invention relates to an ultra-low power consumption technology for realizing Lora communication technology by using a single-chip microcomputer and a high-efficiency power supply circuit. Background technique [0002] With the rapid development of the Internet of Things technology, the wireless communication technology Lora has been rapidly developed and applied. Lora adopts linear frequency modulation spread spectrum modulation technology, has good anti-interference ability, and is widely used in various Internet of Things projects. [0003] When considering the use of LoRa technology, a very important technical requirement is low power consumption. Although low-power FSK (Frequency Shift Keying) modulation has been adopted in the design of Lora's signal modulation method, in the actual application system, the continuous standby state of Lora and the power consumption of the peripheral acquisition circuit make the entire application using Lora T...

AI Technical Summary

Problems solved by technology

[0005] 1. Lora consumes a lot of power in standby mode, which wastes power for no reason;

[0006] 2. The conversion efficiency of AC220V AC to DC is low, and the general conversion efficiency is below 87%, and the wasted electric energy is dissipated in the form of heat;

[0007] 3. In many application scenarios, direct access to AC power is difficult, and wires need to be re-erected, which not only increases the project cost, but also increases the difficulty of the project;

[0008] 4. Lora and the entire application system completely rely on AC220V mains power supply. Once the mains power is cut off, the entire system will be paralyzed and unable to work;

[0009] 5. For a network composed of multiple Loras, wires need to be installed for mains access, which makes the entire system hardware very unsightly

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