For me, I want the lights to be triggered when, for instance, my car pulls
into the driveway. That car will not likely trip any other zones, virtual
or otherwise, so, the zoned solution may not be effective for me. Thanks.JDRoberts https://community.smartthings.com/users/jdroberts
Helpful
February 14
There are multiple different technologies available for motion detection.
For various reasons, the most typical being low power requirements, most of
the Z wave and zigbee sensors are PIR motion detectors, where PIR stands
for “passive infrared.” The sensors don’t actually detect motion at all – –
they can detect very small changes in temperature as it moves across the
detection field of the sensor.The reason why some of the multi sensors, such as the Aeotec multisensor,
tell customers to disable the motion sensing feature if the sensor is used
outdoors is because of the problem of “microclimate” meaning very small
changes of temperature, usually caused by either direct sunlight or gusts
of wind which can trigger false alarms as the temperature changes across
the sensor field. A gust of warm wind, or a cloud passing across the sun,
may create enough of the temperature differential that it will be perceived
the same as a person walking past. And the motion sensor placed near a
window may get heat reflections from the glass which can also trigger false
alarms.These variations, which depend on local architecture, are why some people
will report having no problems while other people will report having many,
or why some people only have false alarm problems at certain times of year.One very popular solution to this is to use multiple PIR motion sensors in
a zone, and accept the alert only if more than one of them detects the
motion. Mike Maxwell has written a smart app which is very helpful for
this. But then this does require more than one device.Smart Zone motion detector (Zone Motion Manager) 2.1.0 release
https://community.smartthings.com/t/smart-zone-motion-detector-zone-motion-manager-2-1-0-release/24188?source_topic_id=77706 Community
Created SmartApps
https://community.smartthings.com/c/projects-stories/created-smart-appsI built this to solve a number of motion related issues. --Reduction of
false motion events in exterior applications (False Motion Reduction)
–Represent a group of detectors with a single virtual detector (Motion
Aggregation) --Enable a Motion Aggregation zone from various devices,
switches, contacts ect (Triggered Activation)This is a parent/child application (like Smart Lighting) where the motion
zones are created and edited from the parent application. When a new
virtual zone is created, a virtual motion sensor is created for that zone.
This virtual motion detector represents the states of the physical motion
detectors that you configured for that zone. You can then use that virtual
zone device in any applications that accept motion devices.[image]
https://community.smartthings.com/uploads/short-url/qM8yhRaHoBEhmt6eILmWAk4u5xE.png[image]
https://community.smartthings.com/uploads/short-url/k6LfEUWdLz9QOrHpWztFou334Dw.png[image]
https://community.smartthings.com/uploads/short-url/f89RwREz2mUrtYlvYWdDLaI46Li.pngThree co…
So when you look at sheltered locations, you want to think about not just
shelter from the rain and direct sunlight, but also where the wind breaks
might be. And try to stay away from windows. [image:]
As far as wiring in a conventional motion sensor, which may be using a
different technical method, that’s discussed in detail in the outdoor
motion sensor FAQ. It’s definitely a method that can work well.FAQ: Do you know of an outdoor motion sensor?
https://community.smartthings.com/t/faq-do-you-know-of-an-outdoor-motion-sensor/1513?source_topic_id=77706
FAQ https://community.smartthings.com/c/devices-integrations/faqI am looking for outdoor motion sensors to monitor my yard.
I bought a pair of the Aeon Labs Aeotec Z-Wave Multi-Sensor and am quite
unhappy with them. Even on the lowest sensitivity setting it randomly sends
alerts, some perhaps due to clouds changing the lighting (even though PIR
is not supposed to be susceptible to this) and others I can’t explain at
all. With several false alerts a day this thing is just useless. The
Smartthings Motion sensor works great, I have some in my house, but it is
indoor rated only. The Schlage / Nexia motion sensor is also indoor use
only.I am hoping someone has come across an outdoor rated motion sensor they
have been able to pair with the Smartthings hub.A number of people also just rely on integration with security camera
motion sensors, which often use a different technology, or a dual
technology, not just PIR.–
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In Reply To
marquis_Frank https://community.smartthings.com/users/marquis_frank
MFrank https://community.smartthings.com/users/marquis_frank
February 14
Thanks NomadTech, There appears to be some holes in the technology around
weather-sealed outdoor sensors. I am collecting a lot of information from
forum members such as yourself and will need to press on to achieve what
seemed relatively simple outcome to me, but is turning out to be a bit more
c…–
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