First, we need to understand what a portable data collector is.
Depending on the purpose of the data collector, there are two broad categories: online data collectors and portable data collectors.
Online data collector
The online data collector can be divided into desktop and wired. Most of them are directly powered by AC power. Generally, they are not used independently. The data is transmitted between the collector and the computer by cable connection and cannot be used offline.
There are two ways for such scanners to transfer data to a computer: one is keyboard emulation; the other is to transfer data to a computer through a communication port. For the former, there is no need to supply power separately, and the power is taken from the inside of the computer; the latter needs to be powered separately.
Therefore, the online data collector must be installed in a fixed position and the bar code symbol must be read before the scanner. At present, some logistics companies have begun to use in the management of the warehouse. Because online data collectors impose restrictions on their scope of use and use, they cannot be used in applications that require offline use, such as inventory counts, scanning of large items, and so on. In order to make up for the shortcomings of online data collectors, portable data collectors came into being.
Portable data collector
The portable data collector is designed to accommodate some field data acquisition and scanning bar code symbols for bulky objects, suitable for offline use. When reading, contrary to the online data collector, it scans the scanner before it is taken to the bar code symbol. Therefore, it is also called a handheld terminal and an inventory machine.
It is powered by a battery, and communication with the computer is not simultaneous with scanning. It has its own internal memory, which can store a certain amount of data and transmit it to the computer at the appropriate time. Almost all portable data collectors have certain programming capabilities, and with the application, they can become very powerful special equipment, which can meet the needs of different occasions.
More and more logistics companies are turning their attention to portable data collectors. Some logistics companies in China have used portable data collectors for warehouse management, transportation management and item tracking.
1 Scope of application
Users should choose different portable data collectors according to their different situations.
If the user is using a portable data collector in a relatively large, three-dimensional warehouse, because some items are stored at a higher position and are farther away from the operator, we should choose to scan the depth of field is large, the reading distance is long and the first reading rate is high. Collector.
For users of small and medium-sized warehouses, the requirements in this area are not very high, and some collectors with complete functions and easy operation can be selected.
For the user to purchase a portable data collector, the most important point in the selection is "enough", that is, the purchase is suitable for its own needs, rather than blindly purchasing expensive and powerful acquisition systems.
2 decoding range
The decoding range is an important indicator for selecting a portable data collector.
Each user has its own barcode system. Most portable data collectors can recognize EAN codes, UPC codes, and even dozens of different code systems, but there are big differences.
In the application of logistics enterprises, we must also consider EAN128 code, 39 code, Ku Deba code. Therefore, the user should fully consider the coding range in his actual application when purchasing, and select the appropriate collector.
3 interface requirements
The interface capability of the collector is another important indicator for evaluating its function, and it is also the key consideration when selecting the collector.
When purchasing, users should first define the operating environment and interface mode of their original system, and then select a portable data collector that adapts to the operating environment and interface mode.
4 requirements for the first reading rate
The first reading rate is a comprehensive indicator of the data collector, which has a certain relationship with the printing quality of the bar code symbol, the design of the decoder and the performance of the scanner.
The higher the first reading rate, the more work time is saved, but correspondingly, the price is necessarily higher than other portable data collectors. During the inventory (inventory) of the item, the bar code symbol can be manually controlled to repeat the scan with the portable data collector.
Therefore, the requirement for the first reading rate is not strict, it is only a measure of work efficiency. However, in the automatic branching system, the requirement for the first reading rate is very high.
Of course, the higher the first reading rate of the portable data collector will inevitably lead to an increase in its bit error rate. Therefore, when selecting the collector, the user must purchase the collector that meets the system requirements according to his actual situation and economic ability. The rate and the bit error rate are balanced.
Market application
With the widespread promotion of bar code technology, the modernization of China's shopping malls has developed rapidly, and the level of electronic management of business management has been greatly improved. The market for portable data collectors has been formed and has a large demand.
However, the electronic inventory of inventory (inventory) of domestic logistics enterprises is still at a low level, and there is a big gap with the level of foreign business management.
In fact, the application of the data acquisition system not only saves time, reduces workload, reduces management costs, and effectively improves the inventory structure. It is also very feasible to establish a data acquisition system in a logistics enterprise and use a portable data collector.
1 implementation is less difficult
Logistics companies only need to purchase a portable data acquisition system based on the original MIS system, without having to make a big move.
With the development of science and technology, the functions of the portable data collector are increasingly perfect. The general system is equipped with application software so that the user can connect with the original system, and the operation of the enterprise and the operation of the original system are not generated.
It can be said that the use of the portable data collector is a useful complement to the original system in terms of inventory (counting).
2 equipment is easy to install, simple to operate, and highly adaptable
It does not need to increase the venue, and is not limited by time and space. It is smart and practical, and it is convenient to realize the realization of inventory (counting) and item tracking management.
3 equipment investment is not high, but achieved remarkable results
For example, improve work efficiency, save work time, reduce manual workload, reduce various management costs, and improve inventory structure in a timely manner.
The most important thing is to use the portable data collector to shorten the inventory cycle and the time spent on each inventory, truly realize the non-stop inventory, and reduce the field management errors to the lowest level.
4 management, technology development is more mature
At present, there are many successful examples that can be borrowed at home and abroad. The application software of various portable data acquisition systems on the market is practical, easy to operate, and has good stability, effectively improving the accuracy of the inventory data and the reliability of data communication, and solving the drawbacks of slow manual recording and error proneness. .
5 Constantly moving towards miniaturization, intelligence and multi-functionality
After the company purchases the equipment, the operator can quickly master the use without having to specially train or hire professionals in this field.
With the promotion of bar code technology, the proportion of bar code used in general merchandise has increased year by year, and the application of logistic bar code has become more and more extensive. All this provides logistics companies with sufficient data sources to ensure the smooth use of portable data acquisition systems.
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