CN203084744U - Wireless portable data collector - Google Patents
Wireless portable data collector Download PDFInfo
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- CN203084744U CN203084744U CN 201320060274 CN201320060274U CN203084744U CN 203084744 U CN203084744 U CN 203084744U CN 201320060274 CN201320060274 CN 201320060274 CN 201320060274 U CN201320060274 U CN 201320060274U CN 203084744 U CN203084744 U CN 203084744U
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- acquisition unit
- data acquisition
- portable wireless
- wireless data
- data collector
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Abstract
The utility model relates to a wireless portable data collector. A scan input end, a liquid crystal screen, a scan button, twelve numerical control buttons and a SD data interface are arranged on the wireless portable data collector. A microprocessor, an image acquisition module, a bluetooth module, a liquid-crystal display circuit and a SD card storage circuit are mounted inside the wireless portable data collector. Scan input of data such as two-dimensional bar codes and the like are realized by the data collector. Thus, information such as students' names, college, classes and grades, scores and the like can be rapidly mastered. The wireless portable data collector has advantages of reasonable structure, convenient operation and good using effect, and is suitable for extraction and displaying of information such as identity, score and the like in units such as various kinds of universities, colleges and the like.
Description
Technical field
The utility model relates to a kind of portable wireless data acquisition unit, belongs to electronic technology and data input field.
Background technology
The bar code scan input is one of standard input device of computer system, because it can replace the part input operation of keyboard to a great extent in computing machine, the convenience that simultaneously has keyboard operation again and do not had, thereby the application in computer system is more and more universal, has especially become requisite input equipment in data management field.
Novel two-dimensional bar code scanning input at first is that the image information that will scan is converted to digital signal, is converted into the data with the computing machine compatibility then, and the interface of it and computing machine can Direct Recognition, need not to do extra Interface design.Though the data of scanning input can directly link to each other with computing machine very easily, but some than mini system in like this design be uneconomic, in actual use, if the collection collection point of data is unfixing, it also is inconvenient at this moment needing a computing machine to link to each other with input equipment at any time.
The ARM series microprocessor has very strong function, and it is not a chip of finishing some logic functions, but a computer system is integrated on the chip.Microprocessor has that volume is little, light weight, low-cost characteristics, for using and the exploitation condition of providing convenience.Have advantages such as control function is strong, expansion is flexible, microminiaturized and easy to use simultaneously, be widely used in the various aspects of modern society.
Characteristics such as that the wireless blue tooth technology has is easy to use, compatible good, system stability, antijamming capability is strong, low in energy consumption and radiation is little are used widely.And two-dimensional bar code directly Chinese display, numeral, symbol and figure, and it is big to store data volume, can deposit the 1K character, and directly reading of content need not to connect in addition database.PDF417 two-dimensional bar code commonly used has that information capacity is big, coding range is wide, fault-tolerant ability is strong, reliability of decode is high, the security and antiforge purpose performance is good, cost is low and advantages such as bar code shape and size variable.
The utility model is a kind of portable wireless data acquisition unit of integrated use 2D bar code technology, digital imaging technology, Bluetooth technology, microprocessor technology, SD card memory technology and lcd technology exploitation.
The utility model content
For further faster and grasp information more easily, a kind of portable wireless data acquisition unit has been proposed.The portable wireless data acquisition unit is provided with scan input end, liquid crystal display, scan button, 12 numerical control buttons and SD card data-interface, is provided with microprocessor, image capture module, bluetooth module, liquid crystal display circuit and SD card memory circuit in the portable wireless data acquisition unit.
The microprocessor of portable wireless data acquisition unit inside uses the ARM LPC2138 of 32 in Philips company, it has powerful storage space, the Flash storer of static RAM (SRAM) and 512KB in the embedded 32KB sheet, can be implemented in system programmable (ISP), using (IAP) able to programme, have 28 tunnel 10 A/D converters, 1 D/A converter, conversion rapidly, accurately, the pin aboundresources, nearly 47, has the universaling I/O port that can bear 5V voltage simultaneously, a plurality of serial line interfaces comprise 2 standard UART, 2 400kbps High Speed I
2C interface, SPI and have buffer action and the SSP of data length changeable.And the software portability of LPC2138 is also fine, can transplant μ C/OS2II operating system, reliable operation.
The entire image decode system is made up of three parts: image acquisition, image pretreatment operation and decoding output.Image acquisition realizes by the camera that adopts OV9650 1,300,000 pixels.
Image capture module of the present utility model is to adopt the imageing sensor OV9650 of Omni Vision company to gather the bar code image information, deposit the SD card in by microprocessor, microprocessor reads a secondary PDF417 sign indicating number image information, and carry out pre-processing image data, bar code location, signal error correction and codeword decoding, the two-dimensional bar code data after the decoding are admitted to LCD and show output.
Bluetooth module of the present utility model adopts the novel single-chip bluetooth module of BlueCore2-External of CSR company.This module core work voltage is 1.8V, the operating voltage of input/output port is 3.3V, meet Bluetooth specification V1.1 and V1.2, be integrated with radio-frequency receiving-transmitting, base band control and management and bluetooth Host Controler Interface agreement HCI, have SPI, UART, USB, PIO, pcm interface.BlueCore2-External supports outside Flash and the ROM of 8MB, can realize in the 100m than remote-wireless communication, bring great convenience to data acquisition.
Liquid crystal display circuit of the present utility model adopts the CA320240F1 chip as display module, adopt SED1330 as the liquid crystal control chip, liquid crystal display circuit is made up of the timing sequencer that oscillator, functional logic circuit, display random access memory management circuit, character repertoire management circuit and generation drive sequential.SED1330 can be under very high frequency of operation the instruction code sent of decipher microprocessor promptly, parameter is inserted in the relevant register, and is triggered corresponding logic function circuit operation.Control part can be managed the 64K display random access memory, manages built-in character generator and character generator CGRAM or the EXCGROM that extends out.Because this liquid crystal is not with Chinese word library, has added more than 3900 16 * 16 Chinese dot matrix word library commonly used in the design, and designed various menus.
Design employing capacity be the SD card of 1G as data storage device, the SD card also has power-down protection, and capacity is big, volume is little, mobility is strong, access interface is simple, can directly use card reader to read the data of the inside, cost performance is higher.Data use the spi bus mode to carry out data write in the SD card.At first carry out initialization, change the clock frequency of spi bus into below the 400kHz (because its initialization frequency can not surpass 400kHz), the length of SD fixture block is made as 512 bytes, each read-write all will be carried out piece and read and write.
For simplifying the design of keyboard circuit, the novel intelligent keyboard chip for driving HD7279 that has adopted highly integrated serial line interface of this experiment controls 12 numerical control buttons with it, and it adopts serial line interface, is connected only 3 I/O mouths of needs with microprocessor.It can autoscan input, also can monitor simultaneously, and have to disappear automatically and tremble and discern the function of key 8 * 8 keyboard nearly.
Description of drawings
Fig. 1 is the portable wireless data acquisition unit, and wherein 1 is scan input end, the 2nd, and liquid crystal institute, 3 is 12 numerical control buttons, the 4th, scan button, the 5th, SD card data-interface.
Fig. 2 is the system chart of data acquisition unit.
Fig. 3 is system's main program flow chart.
Fig. 4 is liquid crystal and Microprocessor Interface circuit.
Embodiment
Specify the circuit and the working condition of portable wireless data acquisition unit below in conjunction with accompanying drawing.
HD7279 and microprocessor only need 4 interface lines, and wherein CS is a chip selection signal, and low level is effective, directly ground connection.CLK is the synchronous clock input end that data serial transmits, and the rising edge of clock represents that data are effective.DATA is the serial data end, and when when HD7279 sends data, DATA is an input end, and when HD7279 output key code, DATA is an output terminal.KEY is the push button signalling output terminal, is high level when no key is pressed, and is low level when having key to press and remains to till button discharges always.
When SD card read data, search first line data in the text document, read after finding and deliver to liquid crystal display.When SD card write data, search the position that should write data, write in the SD card, realize the storage data function, and power down can not lost.By button and bar code input, can access the information in the storer and use liquid crystal display displays, also can in storer, add new data message by button.
The cmos image sensor OV9650 of Omni Vision company has 10 the data-interface and the SCCB interface of standard, and parameters such as sensor windows size, gain, white balance correction, exposure control, saturation degree, tone can be set easily by the SCCB interface.
The notebook data collector is by the scanning input to data such as bar codes, can grasp student's information such as name, institute, class and achievement fast, data acquisition unit is rational in infrastructure, easy to operate, result of use is good, the extraction and the demonstration of information such as the identity of units such as suitable all kinds of universities and colleges and achievement.
Claims (6)
1. portable wireless data acquisition unit, it is characterized in that the portable wireless data acquisition unit is provided with scan input end (1), liquid crystal display (2), scan button (4), 12 numerical control buttons (3) and SD card data-interface (5), is provided with microprocessor, image capture module, bluetooth module, liquid crystal display circuit and SD card memory circuit in the portable wireless data acquisition unit.
2. portable wireless data acquisition unit according to claim 1 is characterized in that: its microprocessor uses the ARM LPC2138 of 32 in Philips company.
3. portable wireless data acquisition unit according to claim 1 is characterized in that: its liquid crystal display circuit adopts the CA320240F1 chip as display module, adopts SED1330 as the liquid crystal control chip.
4. portable wireless data acquisition unit according to claim 1 is characterized in that: its image capture module is the imageing sensor OV9650 that adopts Omni Vision company.
5. portable wireless data acquisition unit according to claim 1 is characterized in that: its bluetooth module adopts the novel single-chip bluetooth module of BlueCore2-External of CSR company.
6. portable wireless data acquisition unit according to claim 1 is characterized in that: that the chip for driving of its 12 numerical control buttons is selected for use is HD7279.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320060274 CN203084744U (en) | 2013-02-04 | 2013-02-04 | Wireless portable data collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320060274 CN203084744U (en) | 2013-02-04 | 2013-02-04 | Wireless portable data collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203084744U true CN203084744U (en) | 2013-07-24 |
Family
ID=48830563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320060274 Expired - Fee Related CN203084744U (en) | 2013-02-04 | 2013-02-04 | Wireless portable data collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203084744U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106295453A (en) * | 2016-09-08 | 2017-01-04 | 北京高立开元数据有限公司 | A kind of laser scanner possessing input function |
| CN106355123A (en) * | 2016-08-30 | 2017-01-25 | 成都九洲电子信息系统股份有限公司 | Visual Wi-Fi RF (radio frequency) reader |
-
2013
- 2013-02-04 CN CN 201320060274 patent/CN203084744U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106355123A (en) * | 2016-08-30 | 2017-01-25 | 成都九洲电子信息系统股份有限公司 | Visual Wi-Fi RF (radio frequency) reader |
| CN106355123B (en) * | 2016-08-30 | 2019-01-04 | 成都九洲电子信息系统股份有限公司 | A kind of visual Wi-Fi radio frequency reader |
| CN106295453A (en) * | 2016-09-08 | 2017-01-04 | 北京高立开元数据有限公司 | A kind of laser scanner possessing input function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20140204 |