LORA communication system and method

Abstract

The invention discloses an LORA communication system and method, and the system comprises a transmitter and a receiver, the transmitter and the receiver comprise an LORA communication module, the transmitter is provided with an active wake-up module, and the active wake-up module comprises a coupling generation circuit for generating a coupling signal. The method comprises the following steps: S1,generating a coupling signal through an oscillation starting circuit of a sending end based on manual operation; S2, enabling an awakening circuit of the receiver to receive the coupling signal and generate a continuous high-level signal to act on the MCU; S3, after the MCU of the receiver is awakened, calling an LORA signal module to send connection information to the sending end; and S4, afterthe LORA communication module of the transmitter receives the connection information of the LORA communication module of the receiver, enabling the oscillation starting circuit of the transmitter to stop transmitting the coupling information. According to the invention, electricity can be saved, and the LORA communication module can be awakened immediately without waiting when LORA communication is needed.

Description

technical field [0001] The present invention relates to the field of wireless technology, in particular to a LORA communication system and method. Background technique [0002] LORA is a low-power wide-area network communication technology. Due to the wide application of the Internet of Things, LORA wireless communication technology has been widely used in smart parks. Generally, LORA is directly powered by batteries because of its low power consumption. In order to save power, the LORA module is often arranged to remain in a dormant state when there is no data processing business. In this state, only one clock signal works to maintain the lowest power consumption state of the MCU. After the clock signal accumulates to a certain period, an interrupt wake-up signal will be generated periodically to make the MCU wake up from the sleep state, and then establish a LORA link to process business such as sending and receiving data. After the business processing is completed, the MC...

AI Technical Summary

Problems solved by technology

[0003] However, a problem caused by timing wake-up is that if you need to wake up the LORA module in an emergency, you can only establish a connection after the wake-up period is up, which will delay more time

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