Touchscreens and Work Gloves: Stop Degloving

Most industrial touchscreens are capacitive, so they need bare skin or a special glove to register a tap. Workers solve this by degloving, which costs time and breaks the protection the glove was there to provide. Camera-based gesture control removes the tap altogether. AirTouch reads a gloved hand through a standard RGB camera and converts gestures into the mouse, keyboard, and touch input the HMI or terminal already understands, so nobody has to touch the screen or take anything off.

Why do touchscreens ignore gloved hands?

Capacitive screens sense the electrical change when skin meets glass. Leather, nitrile, cut-resistant, and insulated gloves block that signal, and the thicker the glove, the worse it gets. Resistive screens accept pressure from anything, and they are older, dimmer, and wearing out.

Touchscreen gloves and glove modes help at the edges. They do not help the operator in double nitrile in a cleanroom or the picker in insulated gloves in a cold store.

What does degloving actually cost?

• Time. Peel, tap, reglove. Multiply by every scan, confirm, and next-order tap in a shift.

• Protection. A bare hand at a screen next to a machine, a hot surface, or a chemical process is a bare hand where the glove policy says there should not be one.

• Contamination. In food, pharma, and cleanroom settings the glove is there to protect the product. Every deglove is a fresh glove or a contamination risk.

• The screen itself. Shared touch surfaces in dirty environments collect grease, dust, and residue, and then stop responding even to bare hands.

How does gesture control replace the tap?

A camera faces the operator's station. AirTouch tracks the hand and sends standard input to the computer driving the screen. Raise an open palm to take the cursor, pinch to click, and map gestures to the keys the application already uses: confirm, next, back, acknowledge alarm. The HMI, MES client, or warehouse terminal sees ordinary clicks and keystrokes. There is no SDK and no change to the application.

The surgical gloves article covers the mechanics of tracking a gloved hand. The same applies here, with one difference. Thick or bulky gloves hide finger detail, so simpler gestures such as open palm and pinch tend to be the most dependable, and a station can be mapped to use only those.

Where does this fit on a plant floor?

• Machine HMIs where the operator wears cut-resistant or heat gloves.

• Warehouse and cold storage terminals where insulated gloves stay on all shift.

• Work instruction displays at assembly stations, so the next step is a gesture away.

• Screens behind guards or glass, which a camera reads through and a finger cannot reach. See touchless HMI for cleanrooms and ESD areas.

What are the limits?

A camera needs a line of sight and reasonable light. Heavy dust, steam, or a fully backlit operator can degrade tracking, and some environments may call for a specialized camera. Through our partnership with Orbbec, AirTouch also takes advantage of 3D depth sensing and IR cameras when a deployment calls for them. See the Orbbec page. Text entry by gesture is slow, so stations that type a lot keep a keyboard. Patented intent detection separates the operator's deliberate gestures from people walking past in most setups, and busy lines are worth testing in place.

AirTouch is software. The camera and computer at each station must meet your own site requirements for the area they sit in.

Where to start

Pick the station where degloving happens most and contact us with a photo of it. We will tell you where the camera goes and what to map. To try the interaction first, start a free trial on any Windows or Linux PC with a webcam.

Related: touchless screens for food plants and warehouses, what is a touchless interface, and gesture control and hand tracking software.