Universal sensor interface acquisition system based on ZigBee technology

Abstract

The invention relates to a universal sensor interface acquisition system based on a ZigBee technology, which belongs to the field of wireless communication and electronic technologies. The universal sensor interface acquisition system comprises a ZigBee module, a power supply module, a universal sensor interface module and a digital packaging sensor module, wherein I / O (input / output) ports of the ZigBee module are simulated to a clock line and a data line of a serial transmission bus by a microcontroller of the ZigBee module and are connected with the universal sensor interface module; the power supply module supplies power to the ZigBee module through a power supply line and a grounding line; the universal sensor interface module comprises the clock line, the power supply line, the grounding line and the data line; and the digital packaging sensor module is connected with the universal sensor interface module by the clock line, the power supply line, the grounding line and the data line. The universal sensor interface acquisition system realizes the plug and play of a special packaged sensor by virtue of a universal sensor interface, and avoids circuit changes in acquisition of different types of data; and the compatibility and the validity of the system are improved, and the cost of the system is reduced.

Description

Technical field [0001] The invention relates to an acquisition system based on ZigBee technology, in particular to a sensor universal interface, which belongs to the field of wireless communication and electronic technology. Background technique [0002] The development of microelectronics, computing, and wireless communication technologies has promoted the development of low-power multifunctional sensors, enabling them to integrate multiple functions such as information collection, data processing, and wireless communication in a tiny volume. The wireless sensor network integrates the logical information world with the objective physical world to realize the collection, transmission and processing of the objective physical world information. The sensor node of the data acquisition unit of the wireless sensor network is mainly composed of a sensor module, a processor module, a wireless communication module and an energy supply module. ZigBee technology is a short-distance, low-c...

AI Technical Summary

Problems solved by technology

[0003] 1. The sensor node structure is complex

In a wireless sensor network, a sensor node is generally composed of four modules: sensor module, processor module, wireless communication module and energy supply module. Pin connections and peripheral circuits, resulting in complex circuits and many connections, once connected, it is not easy to change

[0004] 2. There are many types of sensors, and each sensor requires a connection circuit

[0005] 3. The sensor design is not uniform and lacks versatility

Even the same type of sensor has different pin designs and output signal types, some have three pins, some have four pins, some have digital output, and some have analog output, resulting in the need to collect a variety of physical data. Connection method, lack of versatility

[0006] 4. Unable to realize the plug and play of the sensor

Once the circuit welding of the sensor node is completed, the circuit cannot be changed unless the circuit is re-soldered. In general, the sensor node needs to collect different physical data by replacing the sensor, so it needs to be constantly changed and welded. The lack of a sensor plug-in ready-to-use interface

[0007] 5. Poor compatibility and high cost

The data acquisition system based on wireless sensor network needs to collect various types of data. Different data acquisition corresponds to different sensors, different connection circuits, constant changes, welding circuits, poor system compatibility, and waste of unnecessary resources.

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