The problem SAFE_CELL solves

PROBLEM STATEMENT: In today's date, fire safety is only being provided at malls, hospitals, sophisticated houses, apartments etc. These systems are very costly and integrating them in our existing homes is every challanging task, costly and time taking. A common man even hesitates to wears a helmate which costs Rs:1000, so we as a common man, will never invest thousands of bucks for integrating such fire proof technologies in our homes. Most of the time, a fire inside a house is caused due to blast after a LPG leak, which gets ignited due to any kind of short-circuits or sparks in switch boards. The owner is unaware of the whole situation and lives are lost.
SOLUTION: So, we have thought of a solution which is capable of:
(i) DETECTION of LPG leak.
(ii) TRANSMITING information to APP.
(iii) SENDING commands to cut-off the power of whole house.
(iv) SCANNING the total house and sending damage/safe report.
Basically, our system-1 will detect the leakage from LPG cylinder in kitchen. With-in a fixed time, if the gas's concentration increases inside kitchen, it will send emergency instruction to our system-2 which will be fitted at main-switch, which will shut down the MCBs and cutoff the power supply. After power is shutdown, a notification will be sent to the application about the leakage, and its control. If the owner is far away, he will be able to inform the fire department and situation can be controlled. After this, the owner will be able to see the data of oxygen levels, temperature, harmful gas levels inside the house and same data can be forwarded to the emergency department.
We have designed a product which consists of 2 hardware units and a simple application. So we thought our hardware-1, the ALPHA will be plugged-in at kitchen which is capable of sending lekage information to both the owner and to our hardware-2 Beta, which is capable of cutting of the power supply.
EXISTING SOLUTIONS: There is no such Easy-to-plug-in device available in the market.

Challenges we ran into

Difficulty-1: To intercommunicate between two hardware systems. SOLUTION: We used NODE MCU instead of Arduino, for keeping them interconnected through LAN.
Difficulty-2: The range of our gas detecting sensor was less. SOLUTION: We added a potentiometer to regulate the voltage driver and split them. Through this we got a vast divisions of resistance and range was increased significantly. TEST 1: 28cm
TEST-2: 68 cm, TEST-3: 118 cm approx.
Difficulty-2: Designing the Servo-motor in such a way the, it could easily drop the MCB switch and switch ON it.
SOLUTION: We designed the prototye in auto-cad for proper fixing of the hardware.
Difficulty-3: We wanted to control the MCB through our application, but we werent getting a way to do so.
SOLUTION: We used Node js for building a bridge between the user and the hardware device.
Difficulty-4: The interface designing was difficult for making it easy to use and understand.
SOLUTION: Our team mate made several sketches and we took a survey from our parents and finally we finalized our project.
Difficulty-5: Making prototye for these projects was a difficult task.
SOLUTION: We took help of autoCAD and made it through sunboard.
Difficulty-6: It was difficult to decide exact and usefull information which we are provinding in the app.
SOLUTION: We figured out the most acceptable and easily understandable status which the user can take mannual preventives.