問題一覧
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2 types of sensors
Internal and External
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Picks up light
Light sensor
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2 primary light sensors
Photoresistor and Photovoltaic cells
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light sensor but also a sensor of proximity
Photoresistor
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gather data
Internal
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Collect info
External
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convert solar radiation into electricity
Photovoltaic cells
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simply a microphone
Sound sensor
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also use robots with voice commands
Voice system
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allows robot to be aware of surroundings
Proximity sensor
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IR meaning
Infrared transceiver
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IR LED MEANING
Light emitting diode
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broadcast sound waves at high frequencies
Ultrasonic sensor
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allows robot to interpret touch and feel motion
Tactile Sensor
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Tectile Sensor It is classified into 2:
Touche sensor and Force sensor
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calculates force
Force sensor
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to sense and detect
Touch sensor
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check temp of surrounding. based on the principle of voltage difference.
Temperature sensor
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SENSING APPLICATION INCLUDES
Air temp Surface temp Immersion temp
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to estimate their position to its surroundings
Positioning sensor
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GPS
Global positioning system
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uses earth’s magnetic field
Digital magnetic compass
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automatically determine location
Localization
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Localization based on external elements called
Landmarks
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objects that are situated around robot
Artificial landmarks
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Localization is by
Wifi
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Wifi
IEEE 802.11b Direct sequence
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Named after Harald I Blatand. He united warning scandinavian tribes.
Bluetooth
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- measure acceleration and tilt - measure acceleration and tilt
Accelerometer
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2 types of force
Static and Dynamic
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frictional force where robot can determine how much it tilts
Static force
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acceleration required to move an object
Dynamic
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IMU
Interial measurement unit
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power supply pin of sound sensor
VCC
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can be connected to 3.3V or 5V
VCC
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Ground pin
GND
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Digital output pin
Dout
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Analog output pin
Aout