Microcomputer-controlled system with redundant checking of sensor outputs
US4923117A · kind A · utility
25Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1989 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Mar 13, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2231/10
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A burner control system has a microprocessor for testing parameters of operation and for indicating deviations from a preset range for each. The sensors monitoring the parameters provide their outputs as analog voltages to analog to digital (A/D) converters which provide the parameters in digital form. Tests using preset voltage standards increase the likelihood of A/D converter accuracy. In addition, as operating conditions for the burner change, different preset ranges are used for each sensor output when testing them so as to provide maximum confidence of proper burner operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.