Boots – shoes – and leggings
Patent
1979-04-25
1980-08-12
Atkinson, Charles E.
Boots, shoes, and leggings
364481, 364580, 340636, 320 48, 324426, 324 73AT, G08B 1900
Patent
active
042176450
ABSTRACT:
A system for automatically monitoring a plurality of parameters of a plurality of cells in a lead-acid storage battery system. A transponder means responsive to a frequency pattern corresponding to a digital command is located at each cell to be monitored and includes a plurality of sensors which provide analog signals having an amplitude related to the value of the parameters being monitored. In a remote scanner/display means, a microprocessor generates a digital interrogation command (containing a transponder address, sensor selection, and reply duration commands) which is converted to a frequency pattern and coupled to the transponder. In response to the command, the transponder couples the analog signal from the selected sensor to a voltage-controlled oscillator and the output of the oscillator is coupled for the selected reply duration to the scanner/display means where the frequency of the signal is determined under the control of the processor. The information is stored and averaged within the microprocessor and may be displayed upon operator request and an alarm provided if any parameter of any cell exceeds specified limits.
REFERENCES:
patent: 3786343 (1974-01-01), Ehlers
patent: 3940679 (1976-02-01), Brandwein et al.
patent: 3971980 (1976-07-01), Jungfer et al.
patent: 4044300 (1977-08-01), Dupuis et al.
patent: 4050717 (1977-10-01), Arnold et al.
Barry George H.
Dahl Ernest A.
Atkinson Charles E.
Chin Gary
Daubenspeck William C.
Sciascia Richard S.
St. Amand Joseph M.
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