Wire-free weighing

This article compares communication links to transmit weighing data from the point of measurement to another location on the same site, favouring wireless communication. Cabling is expensive, time-consuming to install, and can be subject to electronic noise reducing accuracy. Radio modems are effective as long as the system operates on a channel least affected by frequency noise damaging the signal. Multiple-instrument interfaces work well with synchronised data transfer or by requesting data from individual instruments. If all remote instruments and other signals are fed into a single data logger, the data stream can be transmitted at regular intervals. This can be expensive but costs for short-range transmission can be reduced by using Bluetooth interfacing, and these devices can be linked as repeaters to cover a greater distance. Data loggers can be attached to a PC, data stick or disk to display graphical formats. A weighing machine can be configured in a wireless environment as a website, enabling it to be read from any location as a dynamic web page. Wireless local area networking is flexible and simple to develop.

Language

  • English

Media Info

  • Pagination: 31-32
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01109421
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Aug 25 2008 8:19AM