What is PDA barcode scanner ?

PDA barcode scanner or mobile computer is a handheld device terminal to improve manufacturing productivity ,price check ,inventory check ,invoicing ,product picking ,delivery proof,asset management ,delivery tracking and so on .

 

Handheld PDA is the abbreviation of Personal Digital Assistant, which literally means "personal digital assistant". In the early application, this kind of handheld device mainly concentrated functions such as computing, telephone, fax and network. It can be used to manage personal information (such as address book, plan, etc.), browse the Internet, send and receive E-mail, send faxes, and can also be used as a mobile phone

 

Character

 

As a portable data processing terminal, the handheld PDA mainly has the following general characteristics:

1. Possess data storage and computing capabilities;
2. Secondary development is possible;
3. Capable of data communication with other devices;
4. It has a human-machine interface, specifically, it must have display and input functions;
5. Removable battery for power supply.

 

The main function:

 

In addition to the basic information processing functions of traditional handheld computers, handheld PDAs also add many new professional functions according to user requirements.

 

1. Barcode scanning: There are two main technologies for barcode scanning, laser and CCD. Laser scanning can only read one-dimensional barcodes. CCD technology can recognize one-dimensional and two-dimensional barcodes. However, when reading one-dimensional barcodes, laser scanning technology Faster and more convenient than CCD technology.

 

2. RFID reading and writing: mainly use radio frequency technology to complete data collection and transmission. RFID is divided into three types of low frequency, high frequency and ultra high frequency tags. Handheld PDA with RFID reading function can support a variety of cards It has a wide range of applications in transportation, access control, logistics, attendance, cargo management, identification, etc.

 

3. Fingerprint collection: Handheld PDAs with integrated fingerprint collection and comparison functions are mainly used for public security, social insurance, etc.

 

4. GPS positioning: mainly used for logistics distribution, providing electronic maps and positioning services for couriers and delivery drivers.

 

5. GSM/GPRS/WCDMA wireless data communication: the main function is to exchange real-time data with the database through wireless data communication. There are mainly two situations where this function needs to be used, one is the application that requires high real-time data, and the other is when the required data cannot be stored in the handheld PDA due to various reasons in the application, it may be required If the data is too large, it may also need to be kept confidential.

 

6. GSM/GPRS/WCDMA wireless voice communication: This function is mainly used for voice calls, and can replace walkie-talkies to a certain extent after secondary development.

 

7. Infrared data communication (power infrared): a short-distance wireless data communication technology. The power infrared protocol is a standard promulgated by the Ministry of Electric Power of China. It is a data communication standard for power equipment. Handheld PDAs for meter reading are with this function.

 

8. Bluetooth communication: The Bluetooth communication function is a new generation of short-distance wireless communication technology, which is widely used in handheld PDAs and mobile phones. The short-distance Bluetooth communication can reach 10m, and the long-distance Bluetooth communication can reach 100m. When the amount of communication data is not very large, Bluetooth technology can also replace 802.11B networking.

 

9. RS232 serial communication: It is the most basic data communication method, and most handheld PDAs have this function.

 

10. USB communication: Because of its fast communication speed, USB communication technology has been adopted by many handheld PDAs. Its main purpose is to exchange a large amount of data with PCs.

 

11. WiFi 802.11b/g/n: As the mainstream technology of wireless local area network, 802.11b/g/n is developing very fast. Many handheld PDAs have been equipped with this function. Handheld terminals with this function can operate in a relatively large range. Inner networking and data exchange with PCs, servers, etc., and wireless data exchange in large closed spaces (such as factories and warehouses). If the space exceeds the range that the wireless signal can cover, it can be solved by adding multiple nodes.

 

12. Input method and handwriting recognition: If you want to input Chinese characters, the input method is essential, and the input method used by the handheld PDA is also constantly updated according to the needs of the times and user habits. If the user needs a large amount of text input, then the handwriting recognition function can quickly solve this problem, so the input function of some handheld PDAs also includes the handwriting input function.

 

13. Printing: Some handheld PDAs also integrate printing functions, which can be directly connected to printers to print documents.

 

14. Other functions. Some handheld PDAs have other functions, such as camera, SD expansion card slot, SIM plug-in card slot, PSAM encryption module, etc., which can be configured according to user needs.

 

Application Scenarios:

 

The main mobile application fields of handheld PDA in China are as follows:

1. Express logistics. Typical express delivery, postal distribution, e-commerce distribution, tobacco distribution, warehouse inventory, as well as terminal distribution of major daily necessities manufacturers, pharmaceutical distribution, in-plant logistics of large factories, and warehouse-to-warehouse transportation of logistics companies. According to different systems, the logistics system uses different handheld PDA extension functions. The main functions used are barcode scanning, contact/non-contact IC card reading and writing, WiFi, Bluetooth data communication, etc.

 

2. Three-meter meter reading. In the foreseeable future, this is a market with relatively large capacity. The extended functions integrated in the handheld PDA device for three-meter meter reading are mainly power infrared, barcode scanning and data communication, etc.

 

3. Mobile law enforcement. The technological content of police equipment is getting higher and higher, especially traffic police, patrol police and criminal police have also begun to be equipped with handheld PDA equipment, providing a more powerful tool for police execution. In addition to police work, administrative departments such as health, urban management, and taxation have also begun to try to use handheld PDAs to standardize administrative operations, for rapid information retrieval, case entry, on-site evidence collection and shooting, on-site inspections, and real-time upload of illegal punishment results. Fair and transparent law enforcement and mobile government affairs office. The functions of the handheld PDA used by mobile police mainly include GPRS/WCDMA data, voice communication, IC card reading and writing, and fingerprint collection and comparison may be required in the future.

 

4. Retail. When there are more and more chain transactions in supermarkets and the counter space can no longer meet the needs of rapid transactions, mobile applications based on handheld PDAs can be used for timely and accurate single product replenishment, delivery, delivery, inventory, price verification, mobile Price tag management realizes mobile shopping guide, quick cash register, and peak passenger flow.

 

5. Manufacturing. It is used for real-time monitoring of material flow in factories and production workshops, warehouse receipt, delivery, inventory scanning inspection, real-time query of finished product supply information, etc.

 

6. Ticketing. It is used for automatic identification and collection of ticket information, improves the efficiency of ticket inspection, saves waiting time for ticket inspection, quickly guides peak passenger flow, and uploads real-time statistics of ticket information, which is convenient for management and statistics. For example, subway ticket sorting, train ticket replacement, stadium ticket sales, scenic spot ticket inspection, etc.

 

7. Medical treatment. Handheld PDAs can be used in doctor rounds, mobile nurse stations, and outpatient infusion application systems to view various information of patients in real time, to issue doctor's orders before the bed, to collect nursing data, to quickly execute doctor's orders and nursing tasks, and to check patient and medication information, thereby reducing Medical errors, enhanced infusion safety.

 

8. Backtracking. It is used for the whole quality traceability of the whole product life cycle, and the anti-counterfeiting and anti-channeling management of the channel circulation, so as to achieve accurate product delivery and effective recall of problematic food.

 

9. Educational publishing. In the field of education and training, it can be used to assist teachers to record grades, conduct evaluation management, check student attendance, supervise students' physical exercise, monitor student sports data, and conduct real-time statistics and inquiries. For libraries, it can be used for book loading and unloading, fast data entry, inventory and book distribution management.

 

10. Financial insurance. For example, the safe handover of the cash box escort, the mobile insurance system and the door-to-door distribution of pension insurance. Handheld PDAs in financial and insurance applications require functions such as GPRS/CDMA data or SMS communication. The extended functions of the handheld terminal required for door-to-door pension distribution are mainly fingerprint collection, comparison and other functions.

 

11. Patrol management. It can be used for community security and patrol police to standardize routes when performing patrol tasks, and can also be used for route planning of train inspections, and the inspection results can be recorded and uploaded in real time.

 

12. Parking charges. It is used for charging management of occupied roadside parking in cities, such as real-time display of berth dynamics, automatic warning of non-payment or overtime parking, and punishment of illegal parking sites through handheld PDA.
13. Garbage collection. It is used for automatic collection of urban waste scanning and weighing data, real-time positioning and transmission through handheld PDA, and accurate detection of recycling values.

 

14. Other applications. Such as card management, used to manage various IC cards and non-contact IC cards, such as identity cards, membership cards and so on. As the name suggests, card management is to manage various contact/non-contact IC cards, so the main extended function of the handheld PDA used is contact/non-contact IC card reading and writing.

 

Technical Parameters :