DRX mechanism method for terminal side in field of electrical equipment internet of things

Abstract

The invention discloses a DRX mechanism method for a terminal side in the field of electrical equipment Internet of Things, which comprises the following steps: S1, a base station periodically and regularly sends broadcast information to a sensor terminal through a broadcast channel, and the sensor terminal can obtain time synchronization with a node through the broadcast channel; s2, after accessing the base station, the terminal uploads data in the agreed time slot of the next frame and performs dormancy by analyzing DRX scheduling issued by the node; s3, the base station receives signals of different terminals in different time slots in a TDMA (Time Division Multiple Access) mode without mixing; the method has the advantages that data communication is carried out in a TDMA mode, the collision retransmission problem of a random competition reporting mechanism is solved, energy is saved, the sensor is in a dormant state most of time through DRX scheduling, power consumption is greatly reduced. Meanwhile, the next wakeup time is agreed, and the timing synchronization requirement between the node and the sensor is met.

Description

technical field [0001] The present invention relates to the technical field of Internet of Things of electric equipment, in particular to a mechanism and method for reducing power consumption and realizing synchronization at the terminal side. Background technique [0002] Sensors are the collection terminals of electrical quantities and state quantities of the power grid, and are the sensory nerve endings of the smart grid. They play a fundamental and extensive role in the safe and stable operation of the power grid. However, traditional sensors have problems such as short design life, high energy consumption, and limited power supply capacity, which seriously restrict the depth and breadth of grid sensing. [0003] In order to improve various performances of the sensor, a discontinuous reception (DRX) mechanism is introduced for signal detection on a downlink control channel (Downlink Control Channel, DCCH). DRX includes a duration (On Duration) and a sleep period (Opport...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a DRX mechanism method on the terminal side of the Internet of Things field of power equipment, which has the sensor terminal stop monitoring the DCCH channel during the sleep time, reduces its own power consumption, and also serves as a link between the node and the sensor terminal. The advantage of synchronous function among them solves the problems of short service life, high energy consumption and limited power supply capacity of traditional sensor design, which seriously restrict the depth and breadth of power grid perception.

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