Wireless temperature and humidity intelligent sensor

Abstract

The present invention discloses a wireless humiture intelligent sensor which forms a sensing system together with an upper machine. The invention is characterized in that the sensor comprises a sensor module, a micro-processor module, a wireless receiving and transmitting module, a serial port communication module and a power module. The core part is the wireless receiving and transmitting module which comprises the following elements: a ZigBee wireless module main chip MC13192, a 16.000MHz crystal oscillator, a radio frequency unit RF transmitting and receiving circuit and a 2.4G PCB double pole antenna. The invention has the following advantages: 1) wireless property; 2) flexibility; 3) low power consumption; and 4) usability.

Description

technical field [0001] The invention relates to a temperature and humidity sensor, in particular to a wireless temperature and humidity intelligent sensor. Background technique [0002] Temperature and humidity are closely related to industrial and agricultural production and people's lives, such as warehouses, farmland, and production processes. Excessive humidity will cause grain mildew and deterioration; temperature changes will affect grain quality; reduce. In addition, with the improvement of people's quality of life, the high requirements for the indoor environment also require real-time monitoring of temperature and humidity. [0003] In the past, most of the temperature and humidity sensors transmitted data by wire, and the circuit redundancy was complicated, which was not suitable for large-scale and large-scale placement. The wiring cost was high, and the aging problem of the circuit also affected its reliability. On the other hand, the wireless technology requir...

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Problems solved by technology

[0008] 4) Large network capacity: each ZigBee network can support up to 255 devices, that is, each ZigBee device can be connected to another 254 devices;

At present, in terms of wireless sensors, there is a patent for wireless sensors based on Bluetooth technology "Bluetooth wireless sensor" (patent application number: 2003105080.9), but based on ZigBee technology, networked intelligent temperature and humidity sensors that can be flexibly used in various complex environments Related news has not been reported

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