Disinfection AI Robot Hanthx-x2 Design and workflow

To start with let me tell you that we human beings are blessed with technology so far discovered or invented and we need to adopt it for good. Like every bright side has a dark same in the case of technology also. I don't want to do a debate here but make a point. I am here to describe the good side of technology.

What we are seeing in the picture is my first prototype in the paper which is capable of doing disinfection of an area. Well well! you will say. what this new of it, this kind of things are there in the market and everyone knows about it. Yes, you are certainly right, but how many of you able to build it or possess the knowledge of this kind of devices. So here I am doing exactly the same spreading the knowledge as I grow my knowledge at the same time.

So lets Start:

This device main working principle is Ultraviolet-C radiation. UVC rays have more energy than other types of UV rays. Fortunately, because of this, they react with ozone high in our atmosphere and don’t reach the ground, so they are not normally a risk factor for skin cancer. But UVC rays can also come from some man-made sources, such as arc welding torches, mercury lamps, and UV sanitizing bulbs used to kill bacteria and other germs (such as in water, air, food, or on surfaces).

Since the last years, mobiles systems based on UV-C radiation have been used for cleaning and disinfecting hospitals

UV-C radiation inactivates microorganisms causing DNA damage by producing cyclobutane pyrimidine dimers (CPDs), altering DNA structure, and thus interfering with DNA replication.According to the World Health Organization Global Solar UV Index, the UV region covers the wavelength range from 100 to 400 nm and is divided into three bands: UV-A (315–400 nm) UV-B (280–315 nm) and UV-C (100–280 nm).

other methods of disinfection for large areas include the use of gaseous agents (formaldehyde, ethylene oxide, etc.) which are hazardous and require an airflow pattern. Likewise, liquid agents, such as sodium hypochlorite are also employed for disinfection purposes, but these must be carefully removed after being applied and may damage exposed materials (for example, electronic devices). Other methods include the use of ionizing radiation, but in addition to being hazardous, they require very specialized equipment. Although since the mid-20th century UV treatments have been used for disinfection, only in recent years this technology became more reliable as a consequence of the incremented lifespan of UV lamps. the use of UV-C is a chemical-free and low-cost procedure, which represents a green alternative method for disinfection.

About This Machine :

Above is the design of the first version of HANTHX-x2 this device will have a camera mounted at the bottom and follow a certain path pre drawn on the surface. This device will have 40 watt capacity UVC bulb with light weight 3d printed body. The device will have 2 module one is UVC tower module and 2nd one will be omnidirectional drive module. This device is also capable of disinfecting the air at the

UVC Tower Module

About The Path

The path this device has to follow will be directed by QR code sticker on the ground and those QR code sticker will be easily reprogrammed and replace if required through custom builded app.

Device Recharge Station:

This device will be capable of taking decision autonomously when to recharge his battery and follow a predefine path to go to recharge station and recharge the battery and resume the remaining work cycle if not complete.

Device Communication:

This device will have 2 communication mode one is over the bluetooth and another one is over the wifi.

AI and computer vision:

We will be using on board AI processing unit capable of path following and computer vision and object identification. Object identification will help this device to detect any obstacle or and presence of any live animal during the working cycle. If incase any live animal detect by the camera then this device will shutdown the UVC bulbs and wait for the object to move out from it's view 360 degree view angle. The second workflow if this device detect an obstacle in the path then it will proactively notify the central hub to communicate the operator and wait certain time and take the reverse path or shutdown.

Next version:

HANTHX - X3 will have LDR system mounted on its head map the path and take decission accorgingly

APP Responsibility :

• Operation cycle can be programmed remotely and also capable of video streaming.
• Install the app in your android/IOS mobile device command or shedule the device start.
• Connect to the UVC disinfecting device by Bluetooth. Once the connection is established, the blue LED will turn on.
• Select the radiation time, you can manually set the time or choose it from the drop menu.
• Click on the “Activate” button. The app shows the estate of the UVC device as “Activated”. The red LED will turn on and start blinking. This light will be accompanied by the sound of the buzzer emitting several short beeps. After the last longer beep, the UVC lamps will turn on. The red LED will switch from blinking to continuous and will stay on as long as the UVC lamps are functioning.
• Click on the “Activate” button. The app shows the estate of the UVC device as “Activated”. The red LED will turn on and start blinking. This light will be accompanied by the sound of the buzzer emitting several short beeps. After the last longer beep, the UVC lamps will turn on. The red LED will switch from blinking to continuous and will stay on as long as the UVC lamps are functioning.
• The app will switch off the device upon completion of the programmed time. The app will show the estate of the device as “Inactivated” and the red light will turn off. Alternatively, the device may be switched off by clicking on the “stop” button. The timer may be reset by clicking on the “reset” button.
• The dosage reference table shows some reference values for UVC dosage required to disinfect up to 99.9% of different kind of microorganisms.
• App also can capable of selecting the path that device need to follow.
• App also monitor the the device health.
• App also receive the obstacle notification from the device.

Omnidirectional Drive System:

Above design will be placed on Omnidirectional Drive System for movement all directions autonomous or App driven. I have separated both the module driver module and UVC tower so that easy to scalable in terms of power and requirement and maintenance.

Motion picture of the making:

The main use of this sanitizer is to reduce or eliminate a wide range of microorganisms existing in a specific area. The reference values for dosage are provided to allow the user estimation of the minimum exposure time that needs to be used. These values are only indicative, and therefore, the optimal exposure time should be determined experimentally according to the needs. The dosages values indicated in reference  can be used to estimate the required exposure time according to the following simplified method:

The UV-C dosage received by surface unit (D, expressed in J/cm2) at a given distance (r) from the sanitizer, depends on the power of the emitted UV-C light (P, equal to 8 W for our device) according to this equation:
(1)
D=(P.t)/(2π.L.r)
where L is the length of the UV-C lamps (30 cm) and t is the exposure time expressed in seconds.

Based on this equation, the exposure time can be calculated as follows:
(2)
t=(2π.L.r.D)/P

Using this method, a tool to estimate the minimum exposure time to reach the desired dosage for a certain distance from the device (Fig. 5b) was developed and is available in the initial screen of the app controlling the device.