Kona All-in-One Home Sensor User Guide
T0005370_UG
Version 1.1
TEKTELIC Communications Inc.
Confidential
Page 12 of 26
be configured to function in the customer's application and can be used individually or in
combination. This transducer can also be disabled to conserve battery life.
Break-In detection is a function that senses repeated (4 or more) acceleration events and
toggles an alarm if tripped. The magnitude of event acceleration and event collection time
window are user settable. This function can be enabled or disabled.
Impact detection is a function that senses a single acceleration events and toggles an alarm if
tripped. The magnitude of event acceleration is user settable. This function can be enabled or
disabled.
Acceleration readings can be reported by the Sensor as X/Y/Z vector magnitudes or as a scalar
net magnitude.
The rate at which acceleration is sampled is customer settable to 1 Hz, 10 Hz, 25 Hz, 50 Hz, 100
Hz, 200 Hz, or 400 Hz. Higher sample rates allow the detection of shorter acceleration events at
the cost of shorter battery life. This is an important consideration when configuring the Break-
In and Impact detection functions. The default sample rate is 1 Hz.
1.3.3
Light Detection Transducer
All Home Sensor models contain an ambient light sensor. Light is measured through a light pipe
located on the top surface of the Sensor. The Sensor is intended to detect the presence of light
not to measure and report light intensity. The transducer is sensitive to human visible light with
a peak sensitivity at 550 nm. The approximate light intensity sensing range is 5 lux to 1000 lux.
Light intensity event trigger points are customer settable over the range of 1 to 63. The
customer needs to test their application for the appropriate trigger point. The sample rate is
also customer settable with higher sample rates increasing battery consumption. If a light
intensity greater than the set point is present, an event is reported.
1.3.4
Motion Detection (PIR) Transducer
The Home Sensor PIR model contains a Motion Detector. The Motion Detection Transducer
contains dual sense PIR elements and is configured to sense human motion within its field of
view. When the transducer is combined with the Home Sensor PIR lens, the sense range is 2.5
m covering a rectangular area of 6.0 m by 7.5 m. Figure 3 shows the sense pattern
2
. The
2
The sense range is as claimed by the transducer manufacturer. The sense range is determined as the projection of
the transducer field of view on the ground, and therefore, should not be interpreted as the coverage area where
the sensor can detect moving people. In general, due to the conical nature of the transducer field of view, people
need to be closer to the sensor to be detected. The amount of IR radiation from a moving person, which is also
