一种用于粮食害虫检测的新型无线传感器

Shifeng Qi, Yanhua Li
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引用次数: 1

摘要

目前,粮食有害生物的检测方法很多,但这些检测方法存在效率低、准确性差、实施难度大、检测不及时等缺陷。针对上述缺陷,本文提出了一种能够同时检测粮食害虫种类和数量的无线传感器。其主要原理是:当害虫经过传感器的检测电极时,其电容值会发生变化。由于不同种类的粮食害虫具有不同的介电常数,因此介电常数的变化范围也不同。根据不同的电容值范围,电容检测电路确定害虫的种类,并记录电容的变化次数来确定粮食害虫的数量。该传感器具有低功耗、检测数据无线传输等优点,适合大范围推广。这对中国的粮食安全具有重要意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A New Wireless Sensor Used in Grain Pests Detection
At present, there are many detection methods of the grain pest, but these detection methods have many defects, such as low efficiency, poor accuracy, great implementation difficulty, detection not in time, etc. To solve the above defects, this paper provides a wireless sensor which can detect the species and quantity of the grain pest at the same time. Its main principle is: when pests go through detection electrodes of the sensor, its capacitance value will change. Due to different species of the grain pests have different dielectric constant, then, the change range is also different. According to different capacitance value range, the capacitance detection circuit determines the species of pests, and records the changing times of capacitance to determine the quantity of grain pests. The sensor has the advantages of the low power and the wireless transmission of the detection data and so on, and is suitable for large range of promotion. This has great significance on the China's grain safety.
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