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A very simple explanation of working principle of PIR sensor by a very simple example?
The PIR sensors use the detectors or pyroelectric sensors to work. Example include the automatic door openers.
In a burglar alarm system can you use PIRs for an entry and exit zone?
PIR's are passive infrared detectors which operate when ever a warm body radiating in IR moves. One can set a threshold for amount of IR and hence indirectly for a given range and size of body temperature. So its obvious that on open areas this will not work as any animal could also trigger the alarm. However this alarm could be used to trigger a camera that is being monitored. If the monitoring has to be automatic than a pattern recognition software will have to used to ensure that a zone is being or has been infiltrated. PIR can be used more effectively in an closed room situation by coupling it with that zone is being infiltrated, that is infiltration will be from a window/door. Now a magnetic door switch can be used to detect the presence of the burglar. --- Yes, a PIR can be used for an entry/exit zone, but if you are using to protect the door as well as a room, I would recommend you lower the entry delay time to as low as possible.
How do Motion Sensing Lights Work?
Motion sensing lights use a passive system that detects infrared energy. These sensors are known as PIR (passive infrared) detectors or pyroelectric sensors. Human skin averages to be 93 degrees F, which radiates infrared energy in a wavelength that is between 9 and 10 micrometers. The sensors dectect quick movement of objects that radiate between 8 to 12 micrometers of infrared energy.
What sensors does the house hold robot have and how does the robot use these sensors?
Alot of them use a sonar-like sensors that emit soundwaves to help them "see".
What type of sensors do reversing cars use?
IR sensors
What sensors do exploratory robots use?
Exploratory robots use motion, heat, and camera sensors.
What sensors does the domestic robot have and how does the robot use these sensors?
the fork on the left
What features should I look for to keep mosquitos out of camping tents?
At the end of the day, chemicals and other deterrents are not going to be the answer. I would look for a tent that allows for quick entry and exit. Make sure the tent you use can be completely closed off and do your best to not exit when you don't need to.
What is safety exit?
A safety exit is an exit that you use during times were in that there is fire,earthquake and times that you can't use th elevator but mostly it is use in times of danger.
How can you use sensors?
buy
What are the uses of heat sensors?
All snakes use heat sensors, they use them to find food, a shelter and what things are.
How many tolls from O'Hare to Milwaukee?
The cost of tolls depends on your entry and exit points along Interstate 90. The prices also vary depending on whether or not you use an I-Pass or pay in cash.
