In order to use our Yosnalab shopping services, you need to read carefully about our terms and conditions. If You disagree any part of terms then you cannot access our service.
I agree to pay the rental rate for the period we used the product and in transit and further agrees to promptly return the products at the end of the rental period in the same condition as received.
I will give alert to Yosnalab if my contact information changes.
I also agree to pay for any damages to, or loss of, the rented merchandise occurring during their time of possession or because of loss and or damage of the products. Upon return and inspection if any and all repairs necessary and or accessories missing that were itemized will be charged at our current rates and billed to you.
A full day rental is charged, even for a partial day use. There are absolutely no refunds for early returns.
The products can be used upto 4 weeks only, Cost will be calculated as per day of usage. We are not responsible for the damage of materials or other liability of any kind resulting from the use or malfunction of the equipment. We will not return the initial deposit of money until the product is returned back.
I am responsible for keeping track of my due dates. I understand that any notices sent out by Yosnalab are a courtesy only and failure to receive them does not excuse me from any charges.
A copy of both sides of their valid institution identification card need to be present. Depositing the money can be done only in the form of cash, not through credit/debit cards.
If you have questions or suggestions, please contact us.
The process of extracting coal from the earth is termed as Coal mining. Many industries such as steel and cement industries make use of coal as a fuel for their production of iron ore and cement. The safety of human life is an important factor. So to improve life safety, many systems have been developed. Coal mine safety is an important factor because coal mines are underground tunnels. In coal mining, different accidents take place due to gas explosion, fire, and low percentage oxygen gas, carbon monoxide gas, carbon dioxide gas, methane gas get released so workers injured and died. According to a report at coal mine industries, each year the rate of fatality is increasing due to the emission of hazardous gases( like methane gas, carbon monoxide, etc), fire accidents and lack of rescue facilities. Rescue operations at coal mines are usually risky because the team would be unaware of the conditions inside a coal mine and do not know the emissions of gases at times. So regular monitoring of coal mines has become the most important to avoid loss of life or other disaster happenings. With the help of IoT technology at coal mines, we will be able to reduce and monitor such complicated situations. The Internet of Things (IoT) is the network of “things” or physical objects fixed with electronics, software, sensors, and network connectivity, which permit these objects together and transfer data. IoT allows physical objects to be sensed and controlled remotely across the actual network infrastructure, creating contingency for more direct integration between the computer-based systems and the physical world, and it gives further increase in the efficiency and economic benefit. For this purpose, a rover is designed. The Rover can detect the presence of any poisonous gas using the MQ4 and MQ7 sensors mounted on the top and alert the mine personnel when dangerous levels of gas are detected, such as methane and carbon monoxide that may cause explosions or poisoning of workers. The rover is designed to cover all active mining areas throughout a specified time horizon, thus, posing a trade-off between the cost of installation (i.e., sensors) and operation (i.e., energy consumption).
Why: Problem statement
Whether it's a newly dug mine or an old unused one, The presence of natural gases especially Methane and carbon-Monoxide is hazardous to human workers. so before any mining process, those environments must be analyzed thoroughly by sensing the presence of gases and their intensity and also we must analyze the visual environment in order to save human life from those life-threatening gases.
How: Solution description
The main aim of this project is to send a robot into the working environment (coal mine) and detect the hazardous gases and provide safety against fire explosion poisoned gas and sends a notification to the system.
In the block diagram, Raspberry pi 3 is the heart of the system.
A rover is designed with two sensors MQ4 and MQ7 which helps to detect gases.
These two sensors are used to detect natural gases like Methane, carbon monoxide that may cause explosions or poisoning of workers at coal mines. It consists of 6 pins; 4 of them are used to bring signals and the other 2 are used for providing heat current. If the gas level goes beyond the normal level, the sensors will detect the danger and give alert through the Arduino board to the controller and it will raise the alarm in the system and also raise the message on IoT, which will help to take action as soon as possible.
By using the raspberry pi (Credit card size computer) we mounted a webcam that can feed live video streams through the Internet of Things (IoT). We will be able to control the rover according to the visual surroundings.
The rover will be able to move in all four directions: Right, Left, Front, Back
The turning angle of front wheels: left 35 degrees, right 35 degrees.
The rover will travel in a predefined path at speed up 100cm/sec. Here the intruder detector detects the obstacle in front and avoids collision.
Also, the directions of the rover are manually controlled through pc.
This monitoring and alerting system is powered by a Raspberry pi 3 models b+
How is it different from competition
In the existing system, there is no sufficient awareness for mine workers. An exact reason was not found regarding why workers die. In case if the workers die due to gas leakage, doctors were unaware of the nature of gas which was the cause of the worker's death. Also in the existing system, with the help of wireless sensor networks (WSN), we can monitor only miner tracking and view the tunnel.
The proposed system consists of sensor modules that sense all the data around the coal mine environment and send the data to the user through the module. The proposed system also considers the emergency situation in hand to alert the miners as quickly as possible.