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The Trail
Counter Sensor (TCS) is a device which when placed on hiking or
game trails will count the number of people/animals which traverse
the trail. The basic principle used to create detections is the
well-proven concept of breaking an infrared beam. Each TCS unit
contains both the transmitter and receiver hardware. By setting
one TCS unit as the transmitter and one for the receiver, detections
over 80 feet is easily achieved. In addition, accuracy problems
associated with aiming to a reflector are eliminated. Data download
and system setup are achieved using the Trail Counter Handheld
(TCHH). The TCS uses the same infrared receiver and transmitter,
used for detections, to communicate with the TCHH unit. Data is
accessed using the same infrared transmitter and receiver used
for detection. This is possible using the MSP430’s UART to do
half-duplex communications. A handheld data collection device
(itself another MSP430 device) sends commands to the sensor and
downloads data from it, for immediate viewing or later uploading
to a PC.
Block
Diagram
Lien
Dayman
Colorado, USA
toizzz@hotmail.com
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