Composants principaux d'un kiosque en libre-service

A self-service kiosk is more than just a touchscreen. It is an integrated hardware platform composed of multiple industrial-grade components working together to provide reliable, secure, and uninterrupted self-service experiences.

Understanding the main components of a kiosk helps businesses choose the right hardware, troubleshoot common issues, and evaluate customization options for different industries such as restaurants, retail, healthcare, hotels, transportation, and government services.

This knowledge base article explains every major hardware module used in modern self-service kiosks from a technical perspective. Unlike a blog article, this guide focuses on product architecture, component functions, compatibility, and deployment considerations.

What is the Basic Structure of a Kiosk?

A typical self-service kiosk consists of four major systems:

1. Industrial enclosure
2. Computing system
3. User interaction devices
4. Peripheral modules

Each component performs a specific function while communicating through USB, Serial (RS232), LAN, or other industrial interfaces.

Industrial Cabinet
│
├── Touch Display
├── Embedded Computer
├── Operating System
├── Power Supply
├── Network Module
│
├── Payment Devices
├── Printer
├── Scanner
├── Camera
├── Card Reader
├── NFC Reader
├── ID Scanner
└── Optional Accessories

1. Industrial Cabinet (Kiosk Enclosure)

The enclosure forms the structural foundation of the kiosk and protects all internal electronics.

Typical materials include:

• Cold-rolled steel
• Stainless steel
• Aluminum alloy
• Tempered glass
• Powder-coated finish

The enclosure determines:

• Overall dimensions
• Mounting method
• Cooling design
• Cable routing
• Maintenance accessibility
• Physical security

Common installation types include:

• Floor-standing kiosks
• Wall-mounted kiosks
• Desktop kiosks
• Countertop terminals
• Outdoor kiosks

Design Considerations

Industrial kiosk cabinets should provide:

• Anti-vandal construction
• Easy maintenance access
• Ventilation
• Dust protection
• Stable mounting
• Hidden cable management

2. Touchscreen Display

The display is the primary interaction interface between users and the kiosk.

Modern kiosks generally use commercial LCD panels combined with projected capacitive (PCAP) touch technology.

Typical specifications include:

High-brightness displays are recommended for outdoor environments where direct sunlight can reduce visibility.

3. Industrial Computer (Embedded PC)

The embedded computer serves as the control center of the kiosk.

It processes:

• User inputs
• Payment transactions
• Network communication
• Peripheral devices
• Application software
• Cloud synchronization

Typical hardware options include:

• Intel® Celeron
• Intel® Core™ i3
• Intel® Core™ i5
• Intel® Core™ i7
• ARM-based platforms

Memory options typically range from:

• 4 Go
• 8 Go
• 16GB
• 32GB

Storage options include:

• SSD
• NVMe SSD
• Industrial Flash Storage

The computer should support continuous 24/7 operation with industrial-grade components.

4. Touch Controller

The touch controller converts physical finger touches into digital signals recognized by the operating system.

Its responsibilities include:

• Position detection
• Multi-touch recognition
• Gesture processing
• Palm rejection
• Touch calibration

Most commercial kiosks use USB-connected PCAP touch controllers because they offer high durability, fast response, and minimal maintenance.

5. Power Supply Unit (PSU)

The power supply distributes stable electrical power to every internal device.

A quality PSU provides:

• Over-voltage protection
• Short-circuit protection
• Over-current protection
• Stable voltage output
• Continuous operation

For mission-critical deployments, an industrial-grade power supply is recommended.

Some outdoor kiosks also integrate:

• UPS battery backup
• Surge protection
• Power monitoring

6. Network Communication Module

Most kiosk applications require cloud connectivity.

Common communication methods include:

• Ethernet (LAN)
• Wi-Fi
• 4G LTE
• 5G
• Bluetooth

Reliable connectivity supports:

• Remote monitoring
• Software updates
• Cloud reporting
• Le traitement des paiements
• Device management

7. Receipt Printer

Receipt printers remain one of the most common kiosk peripherals.

Typical uses include:

• Restaurant receipts
• Queue tickets
• Hotel vouchers
• Parking tickets
• Payment confirmations

Common printer types:

• Thermal printer (most common)
• Label printer
• Ticket printer

Important specifications:

• Paper width
• Auto cutter
• Print speed
• Paper low detection
• Jam detection

8. Barcode & QR Code Scanner

Scanners enable fast identification and data retrieval.

Les applications incluent :

• Loyalty membership
• Mobile coupons
• Digital tickets
• La recherche de produits
• Order pickup
• Event admission

Supported barcode types:

• 1D barcode
• QR Code
• PDF417
• Data Matrix

Many scanners support both printed and mobile phone screens.

9. Payment Module

Payment modules transform a kiosk into a complete self-service transaction terminal.

Supported payment devices may include:

• Lecteur de carte EMV
• Contactless NFC reader
• Prise en charge du portefeuille mobile
• QR payment scanner
• PIN pad

Compatible payment methods often include:

• Credit cards
• Debit cards
• Apple Pay
• Google Pay
• Regional digital wallets

Payment hardware should comply with current PCI and EMV security requirements.

10. Camera

Integrated cameras support identity verification and visual interaction.

Common applications include:

• Face recognition
• Video assistance
• L'enregistrement des visiteurs
• ID verification
• Remote support

Typical resolutions:

• 720P
• 1080P
• 4K

Some applications use AI cameras for customer analytics or occupancy measurement.

11. ID & Passport Scanner

Hotels, airports, hospitals, and government kiosks frequently require document scanning.

Supported documents include:

• National ID cards
• Passports
• Driver licenses
• Residence permits

Many scanners support:

• OCR recognition
• MRZ reading
• RFID passport reading

12. Card Dispenser & Card Reader

Certain kiosk applications issue or collect physical cards.

Typical examples include:

• Hotel key cards
• Membership cards
• Visitor badges
• Parking cards
• Gift cards

Functions may include:

• Card dispensing
• Card recycling
• Card collection
• Card encoding
• Magnetic stripe reading
• RFID reading

13. Speaker & Microphone

Audio devices improve accessibility and user interaction.

Common uses include:

• Voice prompts
• Video calls
• Accessibility support
• AI voice assistants

Many public kiosks include noise-canceling microphones for better communication.

14. Cooling System

Continuous operation generates heat inside the enclosure.

Cooling methods include:

Passive Cooling

• Ventilation openings
• Heat sinks

Advantages:

• Silent
• Low maintenance

Active Cooling

• Industrial fans
• Air circulation
• Air conditioning (outdoor kiosks)

Outdoor kiosks may also include thermostats and heating elements for extreme climates.

15. Security Components

Commercial kiosks require both physical and digital protection.

Exemples :

• Cabinet locks
• Tamper switches
• Security screws
• TPM modules
• BIOS password protection
• Encrypted SSD
• Secure boot

For payment kiosks, additional compliance measures may be necessary depending on the payment hardware and deployment environment.

Optional Expansion Modules

Depending on the application, a kiosk may integrate additional modules such as:

• Fingerprint reader
• Signature pad
• Coin acceptor
• Bill validator
• Cash recycler
• RFID reader
• Passport reader
• NFC reader
• UV document detector
• Facial recognition camera
• POS peripherals
• LED status indicators

The modular design of modern kiosks allows businesses to configure only the hardware required for their specific workflow.

How the Components Work Together

A typical self-service transaction follows this sequence:

1. The user interacts with the touchscreen.
2. The embedded computer processes the request.
3. Optional peripherals (scanner, camera, payment terminal, printer, etc.) capture or output data as required.
4. Information is transmitted securely over the network to backend systems such as POS, ERP, PMS, CRM, or cloud services.
5. The kiosk completes the transaction and provides confirmation, such as a printed receipt, digital notification, or dispensed card.

This modular architecture allows individual components to be serviced or upgraded without replacing the entire kiosk.

AONKIOSK Hardware Integration Capabilities

Chez AONKIOSK, every kiosk platform is designed with modular hardware integration in mind. Depending on your project requirements, kiosks can be configured with a wide range of commercial and industrial components, including:

• Industrial PC platforms (Intel® or ARM)
• Multi-size PCAP touch displays
• EMV-certified payment terminals
• QR and barcode scanners
• Thermal receipt printers
• Passport and ID readers
• RFID and NFC modules
• Cameras and biometric devices
• Card dispensers and collectors
• 4G/5G, Wi-Fi, and Ethernet connectivity

This flexible approach allows OEM and ODM customers to build application-specific kiosks without unnecessary hardware, improving cost efficiency while ensuring long-term serviceability and upgradeability.