First, about why such a simulator is needed.
The simulator was created by the master to reduce the cost of training to use fire extinguishers. At annual trainings, operating fire extinguishers are used, which then need to be refueled. Refueling fire extinguishers costs decent money. In addition, such training should be carried out only in street conditions.
The development of the wizard allows you to conduct training an unlimited number of times, it can be used indoors and there are no costs for refueling fire extinguishers.
The master suggested installing a flashlight inside the bell of the fire extinguisher. It is necessary to pull out the pin, and send the bell to the fire, the light from the flashlight will fall on the photocells of the "fire" model. When the beam hits the sensor three times, the buzzer turns on and the LEDs blink, which indicates the completion of the quenching.
Let's see how the device works.
Tools and materials:
-Fire extinguisher;
-Flashlight;
-Photocells;
-Wire;
-Drill;
-3D printer;
-Microswitch;
-Arduino;
-Bread board;
-Battery;
-Electronic components;
- PVC sheet;
-Aerosol paint;
Step One: Arduino
For the project, the wizard uses Arduino UNO. The code can be downloaded below.
Photocell-4-Photocell-3-Pass.ino
Step Two: Modifying a Fire Extinguisher
Alteration of the fire extinguisher is to add a flashlight to the bell, and a switch to the handle of the fire extinguisher. When pulling the checks and squeezing the handle, the switch closes the circuit and the flashlight lights up. The body for installing the switch and the flashlight, as well as some parts for the "flame" master, was printed on a 3D printer.
Flashlight-holder.stl
Flashlight powerplug.stl
Fire stand.stl
Arduino Case Cover.stl
Step Three: Scheme
The master gives a diagram according to which he makes the installation.
Step Four: Fire
The fire is cut from a PVC panel and painted in the desired color. At the bottom of the fire model are four holes in which the photocells are mounted. All electronics are located behind the fire and are powered by a 12 V power supply.
Flame 24 x 24. 125 bit.crv
Flame 24 x 24 .125 bit.dxf
