Hand-held data gathering terminal
Technical field
The invention belongs to the EDP technology field, particularly a kind of hand-held data gathering terminal.
Background technology
Automatic identification technology is with the data automatically identifying and reading, imports a kind of method or the means of computing machine automatically.It is the comprehensive science and technology based on computer technology and development of Communication Technique.And the rapid emergence of barcode technology, generally accept for people as a kind of revolutionary new and high technology, exactly because it is by data collection station these " sharp weapon ", the effective means of carrying out the data acquisition input quickly and accurately is provided, has solved because slow, high " bottleneck " difficult problem that causes of error rate of the artificial input speed of computer data.
The widespread usage of bar code, making information such as the sale of product, stock, dispensing to be managed as product mark with bar code becomes possibility.It is many to face civilian consumer sales point, characteristics such as sales network wide coverage, how under low-cost prerequisite, promptly and accurately obtain sale, inventory information, avoid blindly producing and dispensing and provide scientific guidance, become each civilian consumer goods manufacturing enterprise and press for one of problem of solution for adjusting sales tactics.
Data collection station is by hardware technology, software engineering and the combination of the two, realized bar code scan, decoding and and computing machine between data communication, two kinds of technology that seem wide of the mark are all merged, simplified the process of data inputs greatly.
Some at present external portable data acquisition terminals not only price height, operation are difficult for, and it requires configuration condition higher, and are higher to user's competency profiling, are not suitable for China's national situation.
Summary of the invention
The purpose of this invention is to provide a kind of hand-held data gathering terminal.This acquisition terminal also must can satisfy the user demand of different user in conjunction with China's national situation except the universal performance that possesses above introduction, accomplish easy and simple to handlely again, and the ordinary labourer is left-hand seat easily.
The present invention includes microprocessor, display module, infrared communication module, real time clock, jtag interface, reset circuit, storer, active crystal oscillator, electric weight detection, keyboard detection, scanner interface, power module and hummer, pilot lamp, backlight, light sensitive diode and system bus expansion; Wherein the port of display module correspondence connects the P0.10~P0.12 and the P0.16~P0.23 port of microprocessor, the corresponding RXD0 that connects microprocessor of the port of infrared communication module, TXD0 port and P0.4~P0.6 port, corresponding SCL and the SDA port that connects microprocessor of the port of real time clock, the corresponding TCK that connects microprocessor of the port of jtag interface, TMS, TDI, TRST, with the TDO port, the corresponding RESET port that connects microprocessor of the port of reset circuit, corresponding A1~A22 the port that connects microprocessor of the address wire port of storer, corresponding D0~D15 the port that connects microprocessor of data line ports, corresponding AIN1 and the AIN2 port that connects microprocessor of the port that electric weight detects, the corresponding P0.14 port that connects microprocessor of the port of keyboard detection, P2.16~P2.23 and P2.28~P2.30 port, the corresponding RXD1 that connects microprocessor of the port of scanner interface, the TXD1 port, P0.15 port and P1.27 port.The input end of scanner is connected on the microprocessor by the scanner interface circuit, the input end of hummer is connected on the P3.24 port of microprocessor, the input end of scanning pilot lamp is connected on the scan module, the input end of backlight is connected on the P1.17 port of microprocessor, and the output terminal of light sensitive diode is connected on the P0.27 port of microprocessor.Also be solidified with embedded software in the FLASH memory chip.
The present invention is the high-performance bar code data acquisition terminal that bar code scan, mobile computing and Infrared Wireless Communication technology are combined.It reads in bar code information by bar code scanner, simultaneously can import additional information (character, Chinese character etc.) by keyboard, after the CPU processing, be stored in the user data conservation zone, by the batch processing of Infrared Wireless Communication module data transmission be further analyzed processing to user's PC at last.
The present invention the is integrated embedded OS of independent research---HQOS, ARM structure C PU hardware platform, laser scanning and infrared communication module etc.Cost of the present invention is low, simple to operate, but equipment room carries out the infrared radio communication, is mainly used in to sell terminal data acquisition; Cooperate back-end data management and analysis software can make up the management system of a cover science, intelligence, be particularly suitable for the occasion that product inventory and logistics management, commodity distribution and maintenance etc. disperse, flow; Be to make the enterprise operator promptly grasp market information, and then form correct decisions, make enterprise in intense market competition, be in the invincible position, obtain the higher economic benefit and the ideal tools of social benefit; Can be widely used in retailing, logistic storage, health care, move mobile operating bar code data collection such as check meter.
Description of drawings
Accompanying drawing 1 is the functional block diagram of the embodiment of the invention
Accompanying drawing 2 is the logic theory block diagram of the embodiment of the invention
Accompanying drawing 3 is the CPU schematic diagram of the embodiment of the invention
Accompanying drawing 4 is the storer schematic diagram of the embodiment of the invention
Accompanying drawing 5 is the peripheral circuit schematic diagram of the embodiment of the invention
Accompanying drawing 6 is the electric power management circuit schematic diagram of the embodiment of the invention
Accompanying drawing 7 is the infrared communication module principle figure of the embodiment of the invention
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are specifically described:
With reference to the accompanying drawings 1,2, the embodiment of the invention comprises that microprocessor 1, display module 2, infrared communication module 3, real time clock 4, jtag interface 5, reset circuit 6, storer 7, active crystal oscillator 8, electric weight detect 9, keyboard detection 10, scanner interface 11, power module 12 and hummer, pilot lamp, backlight, light sensitive diode and system bus expansion; Wherein the port of display module 2 correspondence connects the P0.10~P0.12 and the P0.16~P0.23 port of microprocessor 1, the corresponding RXD0 that connects microprocessor 1 of the port of infrared communication module 3, TXD0 port and P0.4~P0.6 port, corresponding SCL and the SDA port that connects microprocessor 1 of the port of real time clock 4, the corresponding TCK that connects microprocessor 1 of the port of jtag interface 5, TMS, TDI, TRST, with the TDO port, the corresponding RESET port that connects microprocessor 1 of the port of reset circuit 6, corresponding A1~A22 the port that connects microprocessor 1 of the address wire port of storer 7, corresponding D0~D15 the port that connects microprocessor of data line ports, electric weight detects 9 corresponding AIN1 and the AIN2 port that connects microprocessor 1 of port, the corresponding P0.14 port that connects microprocessor 1 of the port of keyboard detection 10, P2.16~P2.23 and P2.28~P2.30 port, the corresponding RXD1 that connects microprocessor 1 of the port of scanner interface 11, the TXD1 port, P0.15 port and P1.27 port.The input end of scanner is connected on the microprocessor by the scanner interface circuit, the input end of hummer is connected on the P3.24 port of microprocessor, the input end of scanning pilot lamp is connected on the scan module, the input end of backlight is connected on the P1.17 port of microprocessor, and the output terminal of light sensitive diode is connected on the P0.27 port of microprocessor.
With reference to the accompanying drawings 3~7, in embodiments of the present invention, display module 2 conducts and user's interaction platform is used for the operation interface and the information of display system, comprises image, Chinese character, character, numeral etc.; Infrared communication module 3 is used for the short distance double-direction radio communication of LPC2210 system and other application systems; Real time clock 4 is used for providing date and time to system, and the operator can obtain the current accurate running time; ITAG interface 5 can conduct interviews to all parts of cpu chip inside, by this interface can debug system, programming etc.; Reset circuit 6 can finish system power-on reset and when system works user key-press reset; FLASH ROM part can be deposited tested user application, embedded OS or other in the storer 7 needs the user data preserved etc. after system's power down; Main region when the SDRAM part is moved as system, system and user data, storehouse all are arranged in SDRAM; Active crystal oscillator 8 is for system provides work clock, and it is by the work clock of PLL circuit frequency multiplication in the cpu chip as microprocessor; Electric weight detection 9 can be monitored the battery electric quantity of acquisition terminal in real time in operating process, can remind the user in time to preserve data when electric weight is lower than ratings, change battery; Keyboard detection 10 is used for judging the key value that the user imports, and the keyboard value is passed to system handle; Scanner interface 11 is used for being connected with scanner, and the path of pick-up slip code data is provided; Power module 12 needs the peripheral circuit power supply of power supply to LPC2210 and other; Data bus, address bus and necessary control bus have been drawn in the system bus expansion, are convenient to the particular demands of user according to self, the expansion peripheral circuit.
The components and parts model that the embodiment of the invention adopted is as shown in the table:
The components and parts title | Model | Encapsulation |
CPU | LPC2210 | LQFP144 |
Storer | S71PL064JA0BAW0P | 56BALL_FBGA |
Clock chip | X1208V8I | TSSOP8 |
Chip resets | IMP811SEUS-T | SOT-143 |
LCDs | GTG-160105-VA | |
Infrared separating/coding chip | HSDL-7002#021 | QFN |
Infrared transceiver | HSDL-3201 | HSDL3201 |
Power management chip | SP6201-1.8 | SOT23-5 |
Power management chip | SP6201-3.0 | SOT23-5 |
Power management chip | SP6201-3.3 | SOT23-5 |
Power management chip | SP6648 | MSOP-10 |
Photodiode | PD204-6C | LED |
Function that the embodiment of the invention has reached and target:
(1) scanner can be discerned the bar code of common format.
(2) graphical operation interface, the human-computer interaction interface close friend.
(3) data storage capacity can realize dynamic expansion by changing chip in the main frame, and basic configuration is the 10M byte.
(4) OO embedded OS HQOS, independent research.
(5) support the Fat formatted file system, with the document form storaging user data.Support the user download in advance essence data files with inquire about in actual use, the contrast operation.
(6) support multi-user operation.An equipment can be provided with 4 users: 1 system user and 3 use users, different user has different rights.
(7) support the operation of user's multipaths.Each uses the user can set 3 different collecting flowcharts at most, has enlarged the use occasion of equipment.
(8) support user's secondary development.When 3 different collecting flowcharts that carry when system can not satisfy user's actual need, the user can be according to the actual conditions developing application voluntarily of oneself.
(9) support energy-conservation setting.The user can be provided with automatic shutdown time, automatic shut-in time backlight, sound ON/OFF etc.When not having the user to operate under the open state, system changes battery saving mode automatically over to; Never user's operation in the time of setting, system shuts down with energy-conservation after can preserving user data automatically.
(10) the systematic parameter district is set in the main frame, the setting that memory device is relevant, the BIOS that is similar to PC is provided with.That has stored at present is provided with: equipment factory number, subscriber equipment numbering, login username, user cipher, user are provided with parameter.
(11) provide the data function of packing automatically, fixing packing form is a text character.In the packing process, factory number, device number, user name, collecting flowchart name are formed a complete packet with the business datum file that the user gathers.
(12) closed infrared radio communication increases the waterproof and dustproof ability, is more suitable for rugged surroundings and uses.
Concrete technical indicator:
System | CPU | 32-bit reduced instruction set computer RISC |
Storer | RAM:2MB FLASH ROM:8MB |
Show | Type | STN |
The screen dot matrix | The 160*105 dot matrix |
Backlight | The LED bias light |
Laser scanner | Can read coding | JAN,EAN,UPC,NW-7,CODE39,ITF,CODE93, CODE128(EAN128),MSI,Industrial 2 of 5,IATA |
Read distance | About 4 to 30 centimetres |
Input | Button |
| 23 |
Scanning key | 1 |
Infrared communication | Interface | Infrared ray (contactless type) |
Standard | Follow IrDA Ver.1.2 standard |
Control protocol | Half-duplex |
Synchronism | Asynchronous |
Communication distance | 0 to 20 centimetre |
Power supply | Main battery | No. 5 AAA powered battery of two joints or rechargeable Ni-H 2 battery |
The main battery life-span | About 100 hours (normal temperature, bias light are closed, per 10 seconds read one time bar code) |
Automatically outage | With one second be the interval, automatic power-off time can be set |
Size and weight | Size | Be about 55 (W) * 140 (L) * 35 (H) millimeter |
Weight | Be about 182 grams (comprising battery) |
Working environment | Temperature | -5 to 50 degrees centigrade |
Humidity |
| 5% to 95% non-condensing |
Water proof and dust proof | IP54 |
Drop distance | 120 centimetres (freely falling body) |
Other | Time clock feature | Comprise year, month, day, hour, divide and second calendar |