Honeywell International Inc.

Kui Lu

Dan Zhang

Peter C Hsi

Yuhui Xu

Wei Yeh

A photoionization detector is disclosed. The photoionization detector comprises a detector electrode that outputs a signal, an ultraviolet lamp, a lamp driver communicatively coupled to the ultraviolet lamp and configured to turn the ultraviolet lamp on and off in response to a control input, and a controller that is communicatively coupled to the output signal of the detector electrode and to the control input of the lamp driver, that outputs an indication of gas detection based on the output signal of the detector electrode, and that turns the lamp driver on and off with an on duty cycle of less than 10%.

Low power photoionization detector (PID)

A locating and tracking system includes shoes, which carry a wireless module. A user walking the area causes clicking or intermittent energizing of a transmitter carried in the module. The transmitter communicates with a plurality of fixed wireless access points, to provide the position and tracking for persons in the area.

Smart shoes with wireless transmitter

A locating and tracking system includes shoes, which carry a wireless module. A user walking the area causes clicking or intermittent energizing a transmitter carried in the module. The transmitter communicates with a plurality of fixed wireless access points, to provide the position and tracking for persons in the area.

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Shanghai, China

Kui Lu