CN102236803A - U-Links hand-held mobile terminal for collecting commodity information - Google Patents

Abstract

The invention provides a U-Links hand-held mobile terminal for collecting commodity information. The U-Links hand-held mobile terminal for collecting commodity information has the advantages of powerful function, stable read-write distance and high performance and is a special device which is researched and manufactured by the company and is used for reading an electronic tag according with ISO18000-6C/EPCC1Gen2. The U-Links hand-held mobile terminal for collecting commodity information can be used for accurately, reliably and effectively carry out read-write operation on the electronic tag according with the ISO18000-6C/EPCC1Gen2 standard, can be widely used in the fields such as physical distribution, transportation, ports and piers, library management, commercial retail, liquor and tobacco anti-counterfeiting and the like. A Windows CE embedded operating system and a human-machine interface are adopted in the terminal.

Description

U-Links merchandise news is gathered hand-held mobile terminal

One, technical field

The present invention is mainly used in the information labels that reads commodity, built-in one dimension, two-dimensional bar code scanning, built-in low frequency (134.2KHz), high frequency, ultrahigh frequency RFID module for reading and writing; Can be widely used in medical treatment, food, security protection, logistics, transportation and other fields.

Two, background technology

Description according to ITU, in the Internet of Things epoch, by on various articles for daily use, embedding a kind of short-range ambulatory transceiver device, human in the Information And Communication world, will obtain a new communication dimension, and expand to people and thing and thing from the interpersonal communication connection of anywhere, anytime and be connected with communication between the thing.

Mobile communication technology and RFID technology development in recent years are very fast, after the notion of NFC (near-field communication) proposes, the mutual convergence of mobile communication and RFID technology is accelerated gradually, but as a tractor serves several purposes, existing products also exists certain difficulty and obstacle on the market.

U-Links mobile terminal module of the present invention is built-in RFID read module and one dimension, two-dimensional bar code have utilized powerful communication of PDA and computing power, and RFID read-write and cell phone terminal have been realized perfect combination.The wherein communication of the employing bluetooth (2.4GHz) between the module.

Three, summary of the invention

(1) goal of the invention:

The purpose of this invention is to provide a kind of mobile intelligent terminal that can read Commercial goods labels whenever and wherever possible, this terminal is supported coding techniques widely, as one dimension, two-dimensional bar code, and low frequency (134.2KHz), high frequency, ultra-high frequency RFID label;

(2) technical scheme

The present invention is a kind of mobile intelligent terminal, and this terminal comprises PDA intelligent machine and card reading module;

● the PDA intelligent machine is based on Windows CE operating system, has information processing, reads, decodes, shows, function such as input, output; ,

Processor: SAMNSUNG 400MHz CPU

Internal memory: FROM128MB, RAM 128MB SDRAM can expand by the SD draw-in groove, the maximum 2GB that supports.

Display screen: 3.5 cun QVGA (240*320 pixel) colour, transflective TFT-LCD,

LED-backlit.

Operating system: Microsoft Windows CE 5.0 operating systems (multilingual)

Keyboard function key: 25+1 primary and secondary numeral backlight keyboard, soft button is supported handwriting input.

Standard traffic: USB1.1 main frame and client, RS232 interface.

Standard cell: 3.7V 3200mAh lithium ion battery; Internal backup battery: 17mAh.

Built-in radio communication option: blue tooth interface Class2.0, wireless network meets

IEEE802.11b/g standard (11Mb/S-54Mb/S) is supported CISCO CCX2/3;

GSM/GPRS communication module (900/1800/1900MHz).

Audio frequency: built-in microphone and loudspeaker, mini receiver J-Horner (2.5mm is stereo)

Size: 190x80x25mm weight: 400g (band standard cell)

● card reading module

The main collection related data of being responsible for is supported

Scanning/decode rate: ± 5 times/second

The recognition angle: 54 °, 44 ° of efficient reading angulars

Data acquisition: one dimension (1D) laser, two dimension (2D), CCD imager, RFID

Identification, bluetooth

High-frequency RF ID:13.56MHz, ISO15693,14443A/B, ISO18000-3

Ultrahigh frequency RFID: 862MHz-955MHz, ISO18000-6A, ISO 18000-6B, ISO18000-6C, EPC Class 0, EPC Class 1 (GEN2)

-Wei laser: UPC-A, UPC-E, EAN-13 ,/JAN-13, EAN-8/JAN-8, CODE 39, and CODE 128, CODABAR/NW7, Interleave 2/5,

Industrial?2/5，Matrix?2/5，CODE?93，CODE?11，ChinaPostage，MSI/PLESSEY.

Two-dimensional CCD: QR Code, PDF417, Data Matrix, Micro QR Code, Micro PDF417, Aztec Code

3) technique effect

It is mainly used in mobile Card Reader operation, it solved traditional card reader common several problems:

A. more convenient operation, stand-by time are longer;

B. need power lead, USB line or other communication link wiring.Need not often to plug connecting line, make devices communicating port or power port not fragile;

C. volume is little, in light weight, and is very convenient to carry.Can hang on the waistband, also can hang on the neck or be placed in the pocket

Four, description of drawings

Fig. 1 is a structural representation of the present invention

Five, embodiment

REID RFID (Radio Frequency Identification) has plurality of advantages as a kind of automatic identification technology of high speed development: data read is convenient and swift, recognition speed is fast, can discern multiple goal simultaneously, data capacity big, long service life, applied range, label data can on-the-fly modify etc.Therefore it is applied more and more widely.But the only suitable mostly unit work of read write line in the practical application at present is not suitable for networking, is not easy to centralized control, can not be applied to the multiple spot high density data and gather occasion.Utilize ultrahigh frequency radio frequency identification (RFID) reader to make up data acquisition network based on the RS485 standard, follow the data in the electronic tag of ISO18000-6B agreement, finely solved the difficult problem that the multiple spot high density data is gathered.Network node number can be provided with flexibly according to concrete application scenario, can expand at most to 256 data acquisition nodes.Nodal terminal equipment also disposes USB interface, LCD demonstration, acousto-optic hint, clock module etc., also can off line use, and as general rfid interrogator, reading and writing label, record operating time etc.

This system uses for reference C/S framework classical in the computer network, utilizes the RS485 bus to connect whole network.Wherein computing machine is as the webserver, and nodal terminal equipment is as client computer.Computing machine sends the whole network of order control to each nodal terminal equipment, receives the data that collect and does further processing; Nodal terminal equipment mainly is responsible for gathering label data, the order of responsive computer.

The design that focuses on nodal terminal equipment of system design, the i.e. design of ultrahigh frequency radio frequency identification (RFID) reader.The major function of read write line is to send interrogating signal, selects the transponder in the energy field, sets up data link and transponder is carried out read-write operation.The data acquisition distance of ultrahigh frequency radio frequency identification (RFID) reader is far away, can reach 1～30m, controls reading/writing distance by software setting radio-frequency (RF) receiving and transmission module gain size, satisfies actual requirement neatly.Read write line hardware can be divided into main control module, radio-frequency (RF) receiving and transmission module, power module, data memory module, interface section, clock module, LCD display module, acousto-optic hint module and debug circuit etc. according to different functions

(1) main control module is selected the master control device of mixed-signal system level device C8051F340 as nodal terminal equipment for use, is responsible for control, coordinates each functional module, realizes data acquisition and command response.Utilize two serial ports of device to control radio-frequency (RF) receiving and transmission module and RS485 interface device MAX1483 respectively; The USB function control device that carries constitutes USB interface; By I/O port Simulation with I 2C sequential control data storage device AT24C16; By I/O port controlling clock DS1302; LCD adds other I/O ports and controls as auxiliary by port parallel transmission video data:

(2) radio-frequency (RF) receiving and transmission module is selected RMU900 ultrahigh frequency module for reading and writing for use.This module sends to the collection that the master control device is realized data to data by the signal of antenna demodulation, decoding radio-frequency (RF) tag emission, maybe with order and digital coding, modulation after antenna transmission is given label, realize write operation to label.The transmission of data realizes by TX0 and the RX0 that links to each other with the serial ports O of C8051F340.Be master control template and radio-frequency (RF) receiving and transmission module schematic diagram.

(3) power of power module radio-frequency module is bigger.Therefore for the having relatively high expectations of power supply, require the high-power and total system of output to use 5V and two kinds of different electrical power of 3.3V.This device can become 3.3V with the 5V voltage transitions, and maximum output current can reach 2A.Satisfy the needs of other parts of radio-frequency module and system fully to power supply.

(4) data that collect of data storage module memory node equipment forward the data to computing machine after waiting to receive the transmission data command of computing machine again.The AT24C16 capacity of I2C interface is 16Kbit, can store the data of 2K byte.By master control device I/O port Simulation with I 2C sequential, realize the read and write of data.

(5) RS485 interface in interface section adopts the MAX1483 device.Can drive 256 nodes at most, realize and being connected of bus by the RJ11 interface: the USB controller that USB interface use master control device carries has very high reliability.

(6) other modules are LCDs, can show the data and running time or the real-time time that collect.The mode of parallel transmission is adopted in the transmission of video data, has accelerated the refreshing frequency of screen.

Claims (1)

1. a merchandise news is gathered hand-held mobile terminal, it is characterized in that this equipment is made up of main control module (1.1), radio-frequency (RF) receiving and transmission module (1.2), power module (1.3), data storage module (1.4), interface section (1.5), LCDs (1.6).

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