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We were inspired to make this kind of device when a neighbour was stolen from and had to watch hours of CCTV footage to be able to spot the intruder.
Most of the CCTVs are inefficient as one often has to go through an entire footage to be able to view a small scene. Some CCTV’s try to counter the problem by adding motion sensors and placing the CCTV’s on doors and walls to be able to detect people. But this just makes it easier for thieves to hide from the viewing CCTV.
We were inspired to make this kind of device when a neighbour was stolen from and had to watch hours of CCTV footage to be able to spot the intruder.
Most of the CCTVs are inefficient as one often has to go through an entire footage to be able to view a small scene. Some CCTV’s try to counter the problem by adding motion sensors and placing the CCTV’s on doors and walls to be able to detect people. But this just makes it easier for thieves to hide from the viewing CCTV.
ESP32 with camera and a sensor:
Camera usage made the contraption expensive and lost some of it’s strategic capabilities. It required a lot of wires for interfacing and this made it hard to service and repair. Also, the camera has just 2MP feed which was not very clear.
ESP32 with camera and a sensor:
Camera usage made the contraption expensive and lost some of it’s strategic capabilities. It required a lot of wires for interfacing and this made it hard to service and repair. Also, the camera has just 2MP feed which was not very clear.
To counter the inefficiencies of CCTV, we came up with the solution of placing an IR sensor near the Side of the door so that it would be able to send an alarm when the door is open.
This system when coupled with a camera is extremely efficient as we can also look at the footage. This system, however, needs to be installed inside the door’s frame for detecting when the person is outside. But if there is a pre-installed door or a glass door, this can be placed just above the door ledge to detect when the door is opened. This alarm can be received by Amazon Alexa using Alexa Voice Monkey or on Gmail.
Materials: Our system consists of an IR sensor to read whether the door is open or not. It is connected to an ESP8266 which can send signals using WIFI to a website which processes these signals to give an output. This system can be modified according to the client’s needs. We use Arduino IDE as our coding software and use a combination of Adafruit and IFTTT to identify the signals and give correct outputs.
This system is considerably cheaper than CCTV’s with distance sensors as some of the cheapest ones cost around ₹1000. This price can be further brought down by purchasing large quantities at wholesale prices.
