Efficient Internet of Things terminal task scheduling method

Abstract

The invention discloses an efficient Internet of Things terminal task scheduling method, and the method comprises the following steps: 1, after a satellite Internet of Things terminal is powered on and initialized, sending a first power-on scheduling instruction to a GNSS module, and obtaining GPS position information and UTC time information; 2, calculating the entry time of the satellite in the next period according to the GPS position information and the UTC time information, calculating the entry time difference according to the entry time of the satellite in the next period and the current time, and generating a low-power-consumption instruction when it is judged that the entry time difference is larger than the stable time of the terminal; 3, when the wake-up information is detected, generating a data receiving instruction according to the wake-up information so as to control the FPGA baseband module to receive data sent by the satellite to the satellite Internet of Things terminal. According to the technical scheme, the low-power-consumption state of the satellite Internet of Things terminal is introduced, the task scheduling process is optimized, the standby time is prolonged, the battery cost is saved, and meanwhile, the success rate of data frame sending is increased.

Description

technical field [0001] The present application relates to the technical field of satellite Internet of Things, and in particular, relates to an efficient method for scheduling tasks of Internet of Things terminals. Background technique [0002] Satellite Internet of Things is a relatively popular Internet of Things subdivision industry in recent years, and it is also an important direction for the integration of mobile communication and satellite communication. It can effectively make up for the lack of signal coverage of mobile base stations in remote mountainous areas, some complex areas, and the strong signal interference of land base stations. [0003] As an important part of the satellite Internet of Things system, the satellite Internet of Things terminal undertakes the functions of data collection, transmission and processing of the Internet of Things; it is precisely because of its above-mentioned functions that the subsequent application scenarios are quite extensiv...

AI Technical Summary

Problems solved by technology

[0006] 1) For satellite IoT terminal products, the task scheduling module reuse rate is not high, resulting in high logical complexity in the product implementation scheme;

[0007] 2) The product does not carry out task logic control according to the orbit forecast information of the satellite, resulting in certain limitations in the application range of the product;

[0008] 3) Failure to schedule tasks to control the power consumption of the entire system according to the orbit forecast information, resulting in the inability to effectively control the power consumption of the entire terminal;

[0009] 4) In the low power consumption mode, the system cannot be woken up quickly and effectively, resulting in the untimely reception of collected data and the problem of data loss;

[0010] 5) The traditional task scheduling process and implementation process are cumbersome, and generally introduce a multi-task time-sharing processing mechanism (RealTime Operating System, RTOS), resulting in low scheduling efficiency and high implementation and maintenance costs

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