I'm thinking of making a motion controlled camera. The camera itself shold not be motion controlled, but the rack that holds the camera should be motion controlled.
I've thought of the following setup:
I use 2 pir detectors that will give me analog outputs. The sensors would be placed like this:
THIS SIDE IS FACING THE AREA YOU WANT TO MONITOR
PIR SENSOR 1 | PIR SENSOR 2
THIS SIDE IS MOUNTED ON THE WALL
Each sensor would be placed in the corner between the horizontal and vertical wall on the rack. The sensors would then cover 90 degrees each.
If I mount a fresnel lense on the sensors, that would make the sensors measure motion 90 degrees.
I am gonna use PIR sensors that measures infrared light between 4 - 15 micrometer. Human heat radiations sends out a infrared light on those wavelengts.
The thing I'm gonna try to do is to compare the readings from both of the sensors until they are alike (or as good as alike as they can get). And depending on the output from the sensors, the motor that controls the rack would turn the rack.
If sensor 2 detects motion (heat) the motor will turn the rack until the output from sensor 1 and 2 are alike. And they will be alike if the vertical wall on the drawing is pointing directly at the heat source.
I would like to hear your opinion on this project. And I'm thankful to every input I can get.
The sensor I'm planning to use is this:http://www.futurlec.com/PIR_D203S.shtml
. Do you think this one is suitable for my project?
- I know that I can only control the camerarack horizontaly.
- I know that if the heat source is above or below the camera, the sensors would still sense the heat and move the rack.
- I know that if there are 2 people in the sensing area, I would get a problem.