Design And Implementation Of On-line Monitoring System For Anemometer Tower Safety

In recent years, widespread concern about global green energy, wind power industry is developing rapidly, so that governments, business, investment in wind power developers began construction of anemometer towers. In order to obtain investment in building wind farms wind power first-hand assessment of the required information, the government began to construct wind energy resource professional observation network in 2007. As of April 2009,400 wind towers had built. However, the tower guyed very prominent weaknesses,the tower guyed mainly by the force of the cable, if cable break or node loose, can cause the whole wind tower collapsed. In addition, as the stiffness of the tower is small and has a higher tower, so that,due to the role of wind load will cause the tower sway, if the initial cable tension is not large enough to the tower will cause swings, and lead to capsize the tower.Because of pulling off pin plug, cord rupture, and other products and installation quality, the destruction of the tower down had occurred at home and abroad. Anemometer tower secure online monitoring system is proposed in the context.With the development of communication technology, many wireless technologies have emerged. The Zigbee technology is the most representative of a wireless network technology, because of the simple protocol, low power, easy network characteristics, in the home and building automation, toys equipment, industrial systems and other fields have a broad application. The GPRS coverage wide,fast data transmission, always online and meter fees by characteristics, supports standard TCP/IP protocol. With the improved network, GPRS in many areas to be more and more applications.Based on the Zigbee network, the particular environment and structure of the tower, designed for the tower safety monitoring wireless networks. Described the process of Zigbee wireless networking. Then, described features GPRS technology and working principles. Analysis of the GPRS network TCP/IP protocol. Through the UART interface of the GPRS network and Zigbee network integrated structure.Finally, the hardware design and system integration solutions. Jennie's JN5139 module used, H7710 GPRS module of Hongdian used, LD-206 force transducer used. According to the detailed process of the software implementation of the host computer and lower computer programming, to complete the integration of the whole system.