Wireless intelligent transducer and method for implementing plug and play of transducer

Abstract

The invention discloses a wireless intelligent transducer and a method for implementing plug and play of the transducer. The intelligent transducer is a wireless intelligent transducer meeting IEEE (Institute of Electrical and Electronics Engineers) 1451.5 standards, and comprises a network capable application processor (NCAP) and a wireless transducer interface module (WTIM). The method for implementing plug and play of the transducer comprises the following steps: the NCAP sets a network number, selects a wireless transmission frequency channel, and starts a wireless network; the WTIM applies for adding the network, and the NCAP distributes the network number and a short network address; the NCAP and the WTIM start a network parameter storage and timed handshake mechanism; the NCAP loads a transducers electronic data sheet (TEDS), acquires transducer information of the WTIM and configures a transducer channel; and the NCAP starts the transducer channel, and the WTIM sends transducer measurement data. According to the method, the TEDS data are set by defining a communication message frame format; a protocol stack event processing process is started to monitor network structure change; network parameters are updated and stored in real time by adopting an off-chip data memory; the NCAP can timely and accurately identify that the WTIM is connected and disconnected with the network by means of short network address fields of a message frame by adopting the timed handshake mechanism under the condition that normal data transmission is not affected; and plug and play is implemented.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks, in particular to a plug-and-play implementation method for wireless smart sensors. Background technique [0002] Wireless sensor network is one of the 21 most influential technologies in this century. It integrates the new technology fields of sensing technology, computer processing technology and communication technology. are widely used in the field. The wireless sensor network is composed of a large number of intelligent sensor nodes, and forms a network system with self-organizing ability through wireless communication. As a key component of wireless sensor network, wireless smart sensor's reliability and flexibility determine the performance of sensor network. [0003] The addition, failure, and damage of wireless smart sensors will lead to changes in the structure of the wireless sensor network. The wireless sensor network needs to be adjusted and organized in time to ada...

AI Technical Summary

Problems solved by technology

The IEEE1451.5 standard defines the software and hardware structure of wireless smart sensors WTIM and NCAP, and also gives the format and definition of TEDS, but it does not explain the specific method of WTIM and NCAP to achieve plug and play

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