Barcodescanner
Also: Barcode-Scanner, Barcode Scanner, Handscanner, Handlesegerät, Strichcodescanner, Strichcode-Scanner, Codescanner, Lesepistole, Barcodelesegerät
AI-generated
A barcode scanner is an optical reading device that captures printed barcodes and converts them into machine-readable data. It is used in intralogistics for the seamless identification of goods, load carriers, and storage locations.
Key facts
- A barcode scanner converts printed barcodes into digital data through optical capture, which a WMS or ERP can process directly.
- Modern imager scanners read both 1D barcodes (e.g., EAN, Code 128) and 2D codes such as QR codes and DataMatrix.
- The most common cause of read failures in warehouse operations is poor label quality, not a defective device.
- Stationary, mobile, and vehicle-mounted form factors cover different application scenarios in intralogistics.
- Environmental conditions such as cold, dust, or moisture must be taken into account when selecting a device by checking the relevant protection ratings.
What is a barcode scanner?
A barcode scanner optically captures printed or labeled barcodes and converts the reflected light pattern into digital data, which a downstream system – such as a Warehouse Management System (WMS) or ERP – then processes further. The fundamental principles are laser scanning, CCD image capture, and camera-based imaging. While classic laser scanners primarily read one-dimensional barcodes (e.g., EAN, Code 128), modern imagers can also process 2D codes such as QR codes or DataMatrix.
Practical applications
In intralogistics, barcode scanners are encountered in three basic form factors:
- Stationary scanners are permanently mounted on conveyor lines, sorters, or goods receipt gates and read codes in-line without manual intervention.
- Mobile handheld scanners are held by employees during picking, goods receipt, and goods dispatch. They typically communicate with the WMS via Wi-Fi or Bluetooth.
- Vehicle-mounted scanners are attached to forklifts or narrow-aisle vehicles, enabling identification while the vehicle is in motion.
A scanner is always part of an overall system: without defined read windows, sufficient label print quality, and a stable network connection, recognition rates drop considerably. Label quality – contrast, resolution, protective lamination – is often the most common cause of read errors, not the device itself.
Key selection criteria
The choice of device depends on several factors that should be clarified at an early stage:
- Code types: Which barcode formats are used in the warehouse and by suppliers? 1D, 2D, or both?
- Read range: High-bay warehouses require long-range scanners with a read distance of several meters; short-range devices are sufficient for close-range applications.
- Environmental conditions: Cold storage, dust exposure, or moisture require specific protection ratings (IP ratings) that the device must meet.
- Ergonomics and weight: During shifts lasting several hours, device weight noticeably affects error rates and employee satisfaction.
- Integration: The interface to the WMS or ERP must be evaluated before procurement; proprietary protocols can make it difficult to switch system vendors.
Whether a barcode scanner or an RFID system is more cost-effective depends on volume, item structure, and willingness to invest, and cannot be answered in general terms.
Related terms
- Artikelstammdaten
Item master data refers to the permanently valid base data of an item – such as dimensions, weight, packaging units, hazardous goods classification, and best-before date relevance. It forms the foundation for all logistical, procurement-related, and system-driven processes along the supply chain.
- Augmented Reality
Augmented Reality (AR) overlays the real environment in real time with digital information such as text, graphics, or 3D models. In intralogistics, AR primarily supports picking, maintenance, and the onboarding of new employees.
- Automatisches Kleinteilelager (AKL)
The Automated Small Parts Warehouse (AKL) is a fully automated storage system for totes, trays and small parts, in which storage and retrieval operations are performed without manual intervention by stacker cranes or shuttle systems.
- Barcode
A barcode is a machine-readable optical code that represents information as a pattern of bars and spaces or as a two-dimensional matrix. It enables the automatic identification of items, load carriers, and documents along the entire supply chain.
- Hochregallager
A high-bay warehouse is an automated storage facility with racking from approximately twelve meters in height, where stacker cranes automatically store and retrieve pallets.
- Kommissionierung
Order picking is the process of assembling individual items from warehouse stock to fulfill a specific customer order — the most labor-intensive step in the warehouse.
