Method and system for calculating random reporting time of LoRaWAN equipment

Abstract

The invention provides a method and system for calculating random reporting time of LoRaWAN equipment, and relates to the technical field of communication, and the method comprises the steps: generating a random value according to a plurality of random sources; configuring report starting time and report ending time of the LoRaWAN communication equipment; calculating interval time according to the report starting time and the report ending time; performing remainder operation on the interval time by using the random value to obtain a remainder; and adding the starting time and the remainder to obtain the random reporting time of the data. According to the invention, the random value is calculated through the plurality of random sources, the reliability of the random value is ensured, and the random value and the configured report starting time and report ending time of the LoRaWAN communication equipment are calculated again, so that the report time of the LoRaWAN communication equipment can be dispersed in the time period, the possibility of concurrent conflict of the LoRaWAN gateway is further reduced. And the reporting success rate of the LoRaWAN communication equipment is improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and system for calculating random reporting time of LoRaWAN equipment. Background technique [0002] LoRa is a low-power long-distance wireless communication technology, mainly for applications such as the Internet of Things or M2M, and is an important wireless technology in low-power wide area networks (LPWAN). [0003] LoRaWAN is a set of protocol standards based on the MAC layer based on the LoRa physical layer transmission technology. Corresponding products include LoRaWAN nodes, LoRaWAN gateways and LoRaWAN network servers. LoRaWAN is a global technology. All devices using LoRaWAN can be connected to standard LoRaWAN network servers to realize device data interconnection. [0004] The data reported by the LoRaWAN node device needs to reach the LoRaWAN network server through the LoRaWAN gateway, and then forwarded by the network server to various appl...

AI Technical Summary

Problems solved by technology

The way to generate random values ​​based on time is generally to call the rand function, srand function, and time function, and use them in combination or use RTC time calculation to generate random values. The essence is to use time to generate random values. The effect of random values ​​generated when the time is close is not good. In addition, if the electronic device has not been calibrated and the initial time is used for timing, there is a high probability of conflict between the time when the device runs and the calculation of random numbers, and random numbers with good discreteness cannot be generated; random values ​​based on ADC sampling values ​​are generated through the MCU. The ADC port is floating input or an external ADC sampling chip is connected to obtain a dynamic physical ADC sampling value, which is used as a random seed to calculate a random value. This method occupies hardware resources to a certain extent and increases the cost of hardware. Affected by the external environment, the generated random values ​​are prone to conflict

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