Wireless temperature measurement system and communication avoidance method based on physical random number communication

By using the power frequency electric field within the substation to generate random number factors in the wireless temperature measurement system, the sensor backoff time is discretized and power consumption is reduced. This solves the problems of wireless signal interference and excessive sensor power consumption, and improves the system's communication stability and fault monitoring accuracy.

CN122408978APending Publication Date: 2026-07-17
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Filing Date
2026-04-23
Publication Date
2026-07-17

Smart Images

  • Figure CN122408978A_ABST
    Figure CN122408978A_ABST
Patent Text Reader

Abstract

本申请涉及电力系统监测领域，公开了一种基于物理随机数通信避让无线测温系统及通信避让方法。该系统包括多个测温传感器与一个数据接收装置；测温传感器通过设置处于高阻抗状态的浮空物理引脚，利用变电站背景电磁噪声作为随机源，通过对该引脚进行采样并提取最低有效位LSB拼接生成随机数因子R，并据此计算退避时间以控制无线射频通信模块发送数据。测温传感器采用基于NE555电路的温频转换逻辑实现数据采集。本发明通过物理随机源驱动的异步避让机制，使各节点发射时机在时间轴上自动解耦，有效解决了多节点并发环境下的通信碰撞问题。数据接收装置利用环境温度补偿的差值判定算法，提升了高压电力设备监测的准确性。
Need to check novelty before this filing date? Find Prior Art