CODE AND SEQUENCING SYSTEM FOR AUTOMATIC WEATHER STATIONS.
Abstract
Meteorological and oceanographic information is frequently required from critical areas where routine environmental observations are either not made or can be made only at considerable expense and time. As part of a continuing program to develop environmental telemetering equipment for obtaining data from remote or inaccessible regions, a code and sequencing system was developed. This system includes an analog-to-digital converter which employs a cyclic Morse-code number system. This number system eliminates all possibility of ambiguity as the output changes from any digit to any other digit. The code and sequencing system consists of a multiplexer, encoder, and parallel-to-serial code converter. The system translates the resistance of transducer elements to Morse code; its output is a contact closure at a rate of 17 words per minute. The information is in the form of three-letter groups. The first letter identifies the information channel. The second and third letters provide the transducer readout which will be one of 196 possible two-character words. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 25, 1964
- Accession Number
- AD0603311
Entities
People
- R. B. Bridge
- T. E. Marshall Iii
Organizations
- United States Naval Research Laboratory