CN103021048A - ZigBee-based centralized wireless fingerprint recognition and transmission device - Google Patents
ZigBee-based centralized wireless fingerprint recognition and transmission device Download PDFInfo
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- CN103021048A CN103021048A CN2012104380744A CN201210438074A CN103021048A CN 103021048 A CN103021048 A CN 103021048A CN 2012104380744 A CN2012104380744 A CN 2012104380744A CN 201210438074 A CN201210438074 A CN 201210438074A CN 103021048 A CN103021048 A CN 103021048A
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Abstract
The invention relates to a ZigBee-based centralized wireless fingerprint recognition and transmission device, and particularly relates to a fingerprint recognition and transmission device based on ZigBee wireless network. The device mainly comprises a power management module, wherein the power management module is respectively connected with an embedded microprocessor and a ZigBee communication module; and the embedded microprocessor is connected with a memory module, a fingerprint sensor, a ZigBee communication module, an Ethernet controller, and an LCD display screen. The device provided by the invention has the advantages of scientific and reasonable design and low cost, and can realize direct data conversion between the wireless sensor network ZigBee data and the Ethernet TCP/IP (transmission control protocol/internet protocol) data by using the ZigBee communication mould and the Ethernet controller, thereby realizing data share for decentralized staff attendance, realizing real-time staff attendance management at decentralized import and export, and effectively improving safety management level of enterprise and public institutions.
Description
Technical field
The present invention relates to a kind of fingerprint identification device, particularly a kind of fingerprint recognition transmitting device based on the ZigBee wireless network.
Background technology
The embedded fingerprint system on duty that uses at present mainly realizes authentication by collection, analysis and the contrast that fingerprint Identification sensor and flush bonding processor are finished finger print information, and by communicate by letter with the upper PC integrated management of realization authentication of serial ports.And in personnel's work attendance of some big-and-middle-sized enterprises and institutions is used, more for personnel, in the situation that access way disperses, because the access way mouth is more, for guaranteeing that enterprise security and personal management must all arrange fingerprint acquisition device and gatekeeper personnel at each import and export, this way to manage is disperseed relatively, and each import and export personnel passes in and out data recording and relatively disperses, and enterprise administrator in real time Centralized Monitoring checks that each import and export personnel passes in and out situation.
Summary of the invention
The present invention be directed to the problems referred to above, aim to provide a kind of fingerprint identification device based on the ZigBee wireless network, it can be directly on existing WLAN basis, the finger print data of sensor collection is directly sent in ethernet server or the appointment PC, low, the networking flexibility of this installation cost is convenient to later maintenance.
Implementation of the present invention is: power management module connects respectively at embedded microprocessor and ZigBee communication module, is used for providing stabilized power source;
Described embedded microprocessor is connected with memory module, is used for store fingerprint data information, finger prints processing program and fingerprint characteristic data template;
Described embedded microprocessor is connected with fingerprint sensor by the SPI interface, is used for realizing finger print information collection and algorithm process;
Described embedded microprocessor is connected with the ZigBee communication module by the UART serial ports respectively, connect and compose the wireless sensing gateway by SPI three-wire interface and ethernet controller, be used for the ZigBee packet is converted to the TCP/IP packet of Ethernet, realize that ZigBee-network and this two classes inter-network data of Ethernet are mutual;
Described embedded microprocessor is connected with LCD display, is used for showing the finger print information processing result information.
Useful technique effect of the present invention is: the present invention is utilizing the Zigbee radio sensing network to realize finger print data distributed collection and centralized management, and the data of the wireless sense network that realization will gather are directly changed into should use up the Ethernet TCP/IP packet of putting at present, solve large and medium-sized enterprise and disperseed the network of the data such as personnel's work attendance to share, realized Real Time Monitoring.
Description of drawings
Fig. 1 is electrical schematic diagram of the present invention.
Fig. 2 is the embodiments of the invention synoptic diagram.
Fig. 3 is the circuit theory diagrams of wireless sensing gateway among the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
See figures.1.and.2, power management module connects respectively at embedded microprocessor and ZigBee communication module among the present invention, and burning voltage is provided.Power management module can adopt the 3.3V D.C. regulated power supply in the present embodiment, embedded microprocessor adopts 32 bit processor STM32F-103ZET6 of ARM corex-M3 kernel as master controller, this chip internal is integrated with the RAM of 64KB and the FLASH of 512KB, fast operation, the characteristics such as volume is little, low in energy consumption relatively are applicable to fingerprint image of the present invention and process.
Embedded microprocessor is connected with fingerprint sensor, is used for realizing finger print information collection and algorithm process, and the EPS200 fingerprint sensor that fingerprint sensor can adopt Veridicom company to produce, this sensor gather picture and have the resolution of 500dpi.
Wherein in the mode of connection, the MODE1 of STM32 meets VCC, and MODEO meets GND, makes it be operated in the SPI holotype, and fingerprint sensor EPS200 is that SPI is from pattern; And STM32 is connected with four pins of the SPI interface of EPS200 by pin PB12 ~ 15, realize that with this thereby EPS200 fingerprint sensor carries out associative operation according to STM32 from write register command, address and instruction that the SPI interface sends, and the finger print data that collects is passed back to STM32 through the SPI interface again be for further processing.
Embedded microprocessor is connected with the ZigBee communication module by the UART serial ports, and connect and compose the wireless sensing gateway by SPI three-wire interface and ethernet controller, be used for the ZigBee packet is converted to the TCP/IP packet of Ethernet, realize that ZigBee-network and this two classes inter-network data of Ethernet are mutual; The CC2430 that the ZigBee communication module selects TI company to produce, by its serial ports pin (PO-2) be connected PO-3) be connected with the UART serial ports pin of STM32; It is the ENC28J60 that U.S. Microchip company produces that ethernet controller is selected model, and it is inner integrated meets MAC layer and the phy controller of IEEE802.3 rule.. because STM32 and ENC28J60 are 3.3 V voltage standards, so just the spi bus function of STM32 can be opened without the level conversion device. this processor be set to host mode can with directly the link to each other enable pin CS of .ENC28J60 of the SPI interface of ENC28J60, interrupt output pin INT and interruption wake output pin WOL up, all are Low level effectives, draw the resistance of 10k Ω to link to each other with processor GPIO pin on the needs.Detailed circuit design can be with reference to Fig. 3.
The data that the fingerprint sensor node collects are sent to gateway according to Zigbee protocol, and the ZigBee communication module on the gateway is responsible for parsing the useful load of data, transfer to STM32 processor Control ethernet the core of the card sheet and are responsible for data are sent to Ethernet.
Embedded microprocessor is connected with memory module, is used for store fingerprint data information, finger prints processing program and fingerprint characteristic data template; Storage module comprises SRAM and FLASH.After powering on, STM32 arranges initialization to each register of fingerprint sensor, fingerprint sensor gathers fingerprint image, send to the image pre-service that STM32 carries out various algorithms by the SPI interface, the about 76.8KB of data volume because of a sub-picture, STM32 internal RAM capacity can not satisfy the requirement of storage and view data processing, therefore the fingerprint image data that gathers is stored among the SRAM that extends out, the fingerprint characteristic data masterplate is stored among the FLASH, in order in use delete and increase, and by being connected with LCD display with embedded microprocessor STM, show the finger print information processing result information.
Claims (2)
1. based on the centralized wireless fingerprint identification transmitting device of ZIGBEE, it is characterized in that comprising: power management module connects respectively at embedded microprocessor and ZigBee communication module, is used for providing stabilized power source;
Described embedded microprocessor is connected with memory module, is used for store fingerprint data information, finger prints processing program and fingerprint characteristic data template;
Described embedded microprocessor is connected with fingerprint sensor by the SPI interface, is used for realizing finger print information collection and algorithm process;
Described embedded microprocessor is connected with the ZigBee communication module by the UART serial ports respectively, connect and compose the wireless sensing gateway by SPI three-wire interface and ethernet controller, be used for the ZigBee packet is converted to the TCP/IP packet of Ethernet, realize that ZigBee-network and this two classes inter-network data of Ethernet are mutual;
Described embedded microprocessor is connected with LCD display, is used for showing the finger print information processing result information.
2. the centralized wireless fingerprint identification transmitting device based on ZIGBEE according to claim 1 is characterized in that described storage module comprises SRAM and the FLASH that extends out.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104380744A CN103021048A (en) | 2012-11-06 | 2012-11-06 | ZigBee-based centralized wireless fingerprint recognition and transmission device |
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| CN2012104380744A CN103021048A (en) | 2012-11-06 | 2012-11-06 | ZigBee-based centralized wireless fingerprint recognition and transmission device |
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| CN103021048A true CN103021048A (en) | 2013-04-03 |
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| CN2012104380744A Withdrawn CN103021048A (en) | 2012-11-06 | 2012-11-06 | ZigBee-based centralized wireless fingerprint recognition and transmission device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103729900A (en) * | 2013-12-20 | 2014-04-16 | 柳州职业技术学院 | Campus attendance system based on wireless sensor network |
| CN103810766A (en) * | 2013-05-27 | 2014-05-21 | 常州先进制造技术研究所 | Wireless attendance system based on ZigBee technology |
| CN109257272A (en) * | 2018-09-07 | 2019-01-22 | 华南理工大学广州学院 | A kind of Ethernet radio network gateway based on ZigBee |
-
2012
- 2012-11-06 CN CN2012104380744A patent/CN103021048A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103810766A (en) * | 2013-05-27 | 2014-05-21 | 常州先进制造技术研究所 | Wireless attendance system based on ZigBee technology |
| CN103729900A (en) * | 2013-12-20 | 2014-04-16 | 柳州职业技术学院 | Campus attendance system based on wireless sensor network |
| CN103729900B (en) * | 2013-12-20 | 2016-01-13 | 柳州职业技术学院 | A kind of campus attendance checking system based on wireless sensor network |
| CN109257272A (en) * | 2018-09-07 | 2019-01-22 | 华南理工大学广州学院 | A kind of Ethernet radio network gateway based on ZigBee |
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Application publication date: 20130403 |