In the context of smart warehousing and smart logistics, more and more companies are beginning to use data collection handheld terminals for management. The reason is that it has real-time collection, automatic storage, instant display, instant feedback, automatic processing and automatic transmission functions, which ensures the authenticity, validity, real-time and availability of on-site data. It is small in size, light in weight, high in performance and suitable for mobile operation. But do you know how handheld terminals collect data?

Handheld terminal collects RFID electronic tag data

RFID is currently a complementary technology to barcodes, but it has the potential to replace barcode technology in specific supply chain applications. In the short term, the barcode scanning/RFID reading and writing combination allows operators to work with both technologies at the same time through RFID PDA handheld terminals.

Handheld terminal RFID reading

PDA handheld terminal two-dimensional code image recognition

Two-dimensional image PDA handheld terminals can collect images of two-dimensional or linear barcodes and process them using advanced decoding algorithms. This collector can read linear barcodes omnidirectionally, so it can be scanned without changing the label orientation. In addition, two-dimensional image PDA handheld terminals are also suitable for reading two-dimensional barcodes. 2D barcodes can carry more information in a smaller space than linear barcodes, making them ideal for space-constrained applications such as printed circuit board production, medical and package delivery.

Handheld terminal barcode scanning

2D imaging PDA handheld terminals can capture actual images (such as signatures or damaged boxes), making them ideal for field service, proof of delivery and shipping/receiving applications.

Handheld terminal standard laser recognition

Standard laser PDA handheld terminals work with a laser beam in conjunction with a galvanometer to automatically move the beam left and right over the barcode to read the barcode. Laser engines are available in a variety of configurations (such as standard distance, wide viewing angle, high density, long distance and high visibility) to meet the needs of different applications. The biggest advantage of standard laser PDA handheld terminals is distance: they can read barcodes from several feet away. In fact, if the printed label symbol is large enough, the laser can read from 35 feet (10.7 meters) away.

MEMS laser recognition for handheld terminals

MEMS laser PDA handheld terminals use silicon chips instead of the galvanometer of standard laser scanners, resulting in faster scanning rates, higher reliability, and greater performance advantages over standard laser scanning engines. MEMS technology creates laser scanning engines with new features, including faster scanning rates, miniaturization, excellent durability, and frictionless mechanical parts to ensure long-lasting performance. Its initial scanning rate is more than five times faster than existing mechanical laser scanners using motors, and it can be increased to thousands of scans per second in future products.

Linear image recognition for handheld terminals

Linear image PDA handheld terminals use all fixed parts without any moving parts, making them more reliable than laser scanners, which use fast-moving lenses to move the beam on the barcode. To read a barcode, a linear image PDA handheld terminal needs to illuminate it with light from an LED and focus the barcode image onto the CCD component through a lens.

Data collected by handheld terminals is basically based on different scanning heads to read one-dimensional barcode or two-dimensional code information, or read RFID electronic tag information, and store and manage the corresponding information according to management software.