Universal interface of wireless sensor

Abstract

The invention discloses a universal interface of a wireless sensor, comprising a power supply circuit and a current-signal and voltage-signal conversion circuit, wherein the power supply circuit can supply five power supply voltages such as 0V, 3.3V, 5V, 12V and 24V to the wireless sensor; the input end of the current-signal and voltage-signal conversion circuit is connected with the wireless sensor, and the output end of the current-signal and voltage-signal conversion circuit is connected with a wireless communication module; and conversion from 0-20mA current signals into 0-5V or 0-10V voltage and direct transmission of voltage signals can be finished. The universal interface disclosed by the invention has the advantages that the sensor and the wireless communication module can be connected together, so that the problems that the size and the power supply voltage of the sensor need to be considered when the sensor is integrated on the wireless communication module, and the like are solved, the development of the wireless communication module can not be limited by the sensor, simultaneously the universality and the flexibility of selection of the sensor are improved, and the size limitation of a traditional wireless communication module can be avoided.

Description

technical field [0001] The invention relates to a general interface of a wireless sensor, in particular to a general interface for connecting a wireless sensor and a wireless communication module. Background technique [0002] After entering the 21st century, the development and progress of computing and communication have greatly promoted the development of wireless sensor networks, and the research of wireless sensor networks has become a hot field in the communication industry. A wireless sensor network is composed of multiple wireless sensor network nodes with wireless communication, sensing, and data processing functions within a certain area. A wireless sensor network node generally consists of a perception module (sensor), a data processing module, a wireless communication module and a power supply module. [0003] In the traditional wireless sensor network, when the sensor is integrated on the wireless communication module, the size of the sensor needs to be conside...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a general interface for wireless sensors, which connects the sensor and the wireless communication module, and solves the problem that the size of the sensor and the power supply voltage need to be considered when integrating the sensor on the wireless communication module in the above-mentioned background technology

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