Wireless ultrasonic data transmission based on CC2430 chip

Low-power wireless data acquisition is an important technical means to achieve automation and unmanned surveillanc of ultrasonic measurement systeme. Using wireless communication technology for ultrasonic data transfer, an ultrasonic data transfer method based on Zigbee technology is presented. The entire system hardware circuits and principle are discussed. The system consists of ultrasonic sensor nodes, wireless coordinator node and the terminal nodes. Zigbee protocol is used for the wireless transmission of data between nodes. Ultrasonic sensor nodes distributed in the measurement site and is responsible for collecting ultrasound information. Sensor nodes form self-organized the wireless data transmission network with the centre of coordinator nodes. Terminal nodes obtained the data from ultrasound treatment and transferred to the computer through the serial port and display records. Using TI's CC2430 chip design, nodes make full use of the performance characteristics of the chip SoC with very few external components. The transmission system has good stability, low power consumption and small size. It can be easily laid to completed or under construction building of the application sites, easy to use and maintain.