Happy Plant
Course: PostPC Computing: Embedding Inteligence
Teachers: Prof. Scott Kirkpatrick Mr. Amnon Dekel
Presented by: Ronny Aloni (Computer Science & Biology) Vitaly Lubart (Computer Science)
How does your plant feel today?
The problem: people love plants growing in their home and office, but sometimes
they forget to water them …
Don’t let your plant get down!
Our goal :
build a device which senses the humidity level inside the pot, and alerts when it is not sufficient
Product description
Current humidity measurement
Desired humidity level
INPUT OUTPUT
O.K. or:
Problem!
Product description
Soil humidity sensor
plant classifier red/green leds
On/off switch
Battery test button
Product description
Product description
Video Demo
Technology assessment
• Finding the appropriate humidity sensor
• Power consumption
• Water resistance
Measurement techniques• Gravimetric techniques• Nuclear techniques
– Neutron Scattering– Gamma Attenuation– Resistive Sensor (Gypsum) *– Capacitive Sensor *– Time-Domain Reflectometer (TDR)
• Tensiometric techniques• Hygrometric techniques• Remote sensing techniques• Optical Methods
Capacitive Sensors
The slide is taken from http://www.sowacs.com/feature/netafim/SOILMOIS.PDF
Netafim Sensor
The slide is taken from http://www.sowacs.com/feature/netafim/SOILMOIS.PDF
Netafim Sensor
The slide is taken from http://www.sowacs.com/feature/netafim/SOILMOIS.PDF
Cacti and succulents- let soil dry out almost
completely
Flowering plants-Keep
moist at all times. Don’t let the soil
dry out.
Foliage plants- keep uniformly
moist but not wet. The soil may dry
out a bit.
When should the red light turn on?
Cost • Sensor : up to 5 $
• Box : several cents
• Batteries : ~ 2$
• Chip : 1$
• Electric circuit : 1$
• Total : up to 10 $
More indicators for water stress Indicator:
• Leaf temperature
• Leaf humidification
• Solute concentration
• ABA hormone
• Chlorophyll concentraion
Measured by:
• Thermometer
• Porometer
• Specific antibodies
• Photometer
Thank You