Personal monitor and process for heat and work stress

Details Personal monitor and process for heat and work stress Personal monitor and process for heat and work stress

1989-04-13

1989-11-28

Sykes, Angela D.

Surgery

Truss

Pad

128706, 128736, A61B 502

Patent

active

048830631

ABSTRACT:
A personal monitor (10, 100, 200) for work and heat stress has a heart beat sensor (12) producing output electrical signals indicating a user's heart beats. A memory (127) stores heart beat information corresponding to the heart beat signals produced over predetermined time intervals. A microprocess (126) is connected to receive the heart beat information from the memory (127). The microprocessor (126) analyzes the heart beat information incrementally over the predetermined time intervals under program control to obtain a physiological demand during the predetermined time intervals and compares the obtained physiological demand against a stored physiological demand limit. Light emitting diodes (208) and a sound producing diaphragm (186) provide indications to the user when the stored physiological demand limit has been exceeded. The microprocessor (126) controls operation of the LEDs (208) and the diaphragm (186).

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Journal A, vol. 24, No. 4, Oct. 1983, (Antwerpen, BE), M. Woerlee: "Measurements of Human Work and Work Environment", pp. 195-204, see pp. 196-198: 2. Measurements in the Blood Circulation During Work; FIGS. 2, 4; pp. 200-203; 5. Measuring the Thermal Loading During Work and 6. Measurement in the Work Environment.

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