Smart Public Parks – City Of Surrey
Quantifying usages of public facilities to reduce energy consumption
This project was a part of a student initiative to integrate IoT systems and AI in public parks. We installed custom sensing devices and developed an IoT platform to monitor indoor and outdoor public facilities' usages, including tennis courts and seniors room in 4 different parks at the City of Surrey. Some of the data is to be used for energy efficiency predictive analysis.
We are grateful for the Parks and Recreations department managers and workers, who generously allotted their time and efforts to work with us and help us install the sensors, as well as provided us with feedback on our reports.
Sensors Public Parks Project At The City of Surrey
Sensors and setup:
Indoor counting sensors: microcontroller with an embedded wifi module connected to an ultrasonic sensor.
Ultrasonic sensors are relatively better in detecting objects regardless of sunlight intensity, in comparison to laser or pyroelectric sensor.
A counting sensor placed in a box.
The sensors installed indoors are directly connected to a power source.
Sensors are mounted on both sides of the door. Individuals coming into the room would trigger the sensor mounted on the outer side of the door, then the sensor mounted on the inside. Thus, a count is registered for a person going into the room.
The count number is updated every time the number of people in the room is changed. Similarly, the sensors register individuals leaving the room, by triggering the sensors indoor first the outdoor sensor.
Outdoor sensors (at tennis courts and outdoor facilities) are powered using a solar pad and a rechargeable battery.
The device is packaged within a protective casing, with the sides sealed with a waterproof sealant.
The solar pad was mounted on a lighting pole within the tennis court. 4 sensors monitoring 4 tennis courts were connected to 2 solar pads.
The side facets of the solar pad were placed at an angle to maximize exposure to sunlight throughout the day.
Seniors room: temperature and humidity sensors inside. Counter sensor is mounted on top of the door.
Seniors room: temperature and humidity sensors measure the temperature outside the room (sensors are on the roof). Sensors are connected to a power source.
Temperature and humidity data inside and outside the seniors room over the course of a few days.
Seniors room: data showing senior room usages for the month of January. On the vast majority of the days, there are a few to no users of the room.
Counter data for one of the other sensors in another park.