Zigbee networking technology and its application in Lamost optical fiber positioning and control system

Details Zigbee networking technology and its application in Lamost optical fiber positioning and control system Zigbee networking technology and its application in Lamost optical fiber positioning and control system

Publishing date

Jul 2010

URL

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7740e.111j&link_type=abstract

Journals

Software and Cyberinfrastructure for Astronomy. Edited by Radziwill, Nicole M.; Bridger, Alan. Proceedings of the SPIE, Volume 7

Science

Astronomy and Astrophysics

Field

Astronomy

Type

Scientific paper

Abstract

4,000 fiber positioning units need to be positioned precisely in LAMOST(Large Sky Area Multi-object Optical Spectroscopic Telescope) optical fiber positioning & control system, and every fiber positioning unit needs two stepper motors for its driven, so 8,000 stepper motors need to be controlled in the entire system. Wireless communication mode is adopted to save the installing space on the back of the focal panel, and can save more than 95% external wires compared to the traditional cable control mode. This paper studies how to use the ZigBee technology to group these 8000 nodes, explores the pros and cons of star network and tree network in order to search the stars quickly and efficiently. ZigBee technology is a short distance, low-complexity, low power, low data rate, low-cost two-way wireless communication technology based on the IEEE 802.15.4 protocol. It based on standard Open Systems Interconnection (OSI): The 802.15.4 standard specifies the lower protocol layers-the physical layer (PHY), and the media access control (MAC). ZigBee Alliance defined on this basis, the rest layers such as the network layer and application layer, and is responsible for high-level applications, testing and marketing. The network layer used here, based on ad hoc network protocols, includes the following functions: construction and maintenance of the topological structure, nomenclature and associated businesses which involves addressing, routing and security and a self-organizing-self-maintenance functions which will minimize consumer spending and maintenance costs. In this paper, freescale's 802.15.4 protocol was used to configure the network layer. A star network and a tree network topology is realized, which can build network, maintenance network and create a routing function automatically. A concise tree network address allocate algorithm is present to assign the network ID automatically.

Affiliated with

Also associated with

No associations

Rating

Zigbee networking technology and its application in Lamost optical fiber positioning and control system does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Zigbee networking technology and its application in Lamost optical fiber positioning and control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zigbee networking technology and its application in Lamost optical fiber positioning and control system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1388184