本文设计了一款以LoRa组网方式为主且兼容多种通信协议的用电信息采集系统。系统中网关以国产5G模块为主控模块进行拓展设计,通过裁剪相关频段和射频通路降低了设备复杂度,实现了轻量化5G技术的应用。提出的自适应算法通过调整LoRa模块发射功率可以在保障通信质量的前提下降低系统功耗。测试结果表明,系统有效通信距离可达8 km以上,完全满足使用需求。裁剪后的轻量化5G网关在成本降低60%的情况下,性能表现仍可达到工业级5G CPE性能的80%以上,性价比优势明显,具有一定的推广价值。
Abstract
In the paper,a power consumption information acquisition system based on LoRa networking and compatible with multiple communication protocols is designed.The gateway uses the domestic 5G module as the main control module to expand the design.By cutting the relevant frequency band and radio frequency path,the complexity of the device is reduced so that the application of lightweight 5G technology is realized.The proposed adaptive algorithm can reduce the power consumption of the system while ensuring the communication quality by adjusting the transmit power of the LoRa module.The test results show that the effective communication distance of the system can reach more than 8 km,which fully meets the needs of use.The tailored lightweight 5G gateway can still achieve more than 80% of the performance of industrial-grade 5G CPE under the condition that the cost is reduced by 60%,which has a good promotion and application prospect.
关键词
LoRa /
轻量化5G /
发射功率自适应算法 /
远距离通信
Key words
LoRa /
lightweight 5G /
transmit power adaptive /
long-distance communication
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基金
*国家电网公司科技项目——基于模块化设计的电力5G终端研发及应用(SGZJXT00JSJS2000454)。