CN205105235U - Authentication device based on RFID and zigbee technique - Google Patents

Abstract

The utility model provides an authentication device based on RFID and zigbee technique, including singlechip, RFID identification circuit, keyboard, audio record circuit, motor -drive circuit, display circuit, clock chip, memory, serial communication circuit, zigbee module, power supply circuit, the singlechip adopts the STC12C5A60S2 chip, and RFID identification circuit, keyboard, audio record circuit, motor -drive circuit, display circuit, clock chip, memory, serial communication circuit, zigbee module, power supply circuit are connected respectively to the singlechip, the device, but be applied to the intelligent entrance guard that pronunciation were recorded and play back with RFID recognition technology to can realize wireless monitoring's data transmission through the zigbee module, be convenient for manage and record and collect evidence the personnel information that comeses in and go out.

Description

Based on the identification authentication system of RFID and ZigBee technology

Technical field

The utility model relates to a kind of identification authentication system based on RFID and ZigBee technology.

Background technology

Speech recognition skill in recording evidence obtaining is the technology that a kind of voice mainly for speaker carry out studying, it integrates speech processes and pattern recognition, relate to the numerous areas such as physiology, linguistics, computer science, to safety encipher, public security organ solve a case and the aspect such as court's evidence obtaining significant.

REID utilizes wireless radio frequency mode to realize noncontact bidirectional data communication, to reach the object of target identification and swap data. radio-frequency card is exactly the card of new generation of comprehensive utilization RFID technique and IC-card technological development. and radio-frequency card has noncontact, reading rate is fast, without wearing and tearing, memory data output is large, the feature of long service life, be widely used, there is greatly the trend replacing traditional magnetic card and Contact Type Ic Card. meanwhile, low-power consumption RFID gate control system is day by day welcomed by the people, and demand is also increasing.

Zigbee be a kind of be suggested recently aim at low rate wireless personal area N (LR.WPAN)-and design radio communication new technology, its key property is that low cost, low-power consumption, short distance, speed are not high, and this technology has been widely used in the field such as Long-distance Control and wireless monitor now.Emulation finds that the networking plan improved can effectively decrease to network and postpones, and avoids conflict.

Current existing ID authentication device usually also exists and only realizes simple authentication, does not carry out recording evidence obtaining, or the problem such as cost is higher, power consumption is large.

Utility model content

The purpose of this utility model is to provide a kind of identification authentication system based on RFID and ZigBee technology, in order to improve the fail safe of community's gate control system, and convenient by data syn-chronization, identity identifying technology, ZigBee technology and recording forensic technologies are combined.Recording evidence obtaining when smart card authentication, cipher authentication, remote control and lack of competence personnel enter can be realized, solve the equipment existed in prior art simultaneously and usually there is the problems such as cost is higher, power consumption is large.

Technical solution of the present utility model is:

Based on an identification authentication system for RFID and ZigBee technology, comprise single-chip microcomputer, RFID identification circuit, keyboard, audio record circuit, motor-drive circuit, display circuit, clock chip, memory, serial communication circuit, Zigbee module, power circuit; Single-chip microcomputer adopts STC12C5A60S2 chip, and single-chip microcomputer connects RFID identification circuit, keyboard, audio record circuit, motor-drive circuit, display circuit, clock chip, memory, serial communication circuit, Zigbee module, power circuit respectively; RFID identification circuit comprises chip EM4095, the pin P2.6 of STC12C5A60S2 chip connects the sleep pattern Enable Pin SHD of chip EM4095, the pin P2.7 of STC12C5A60S2 chip connects the restituted signal output DEMOD_OUT of chip EM4095, the pin P2.5 of STC12C5A60S2 chip connects the modulation input MOD of the ready flag of chip EM4095 and the pin P2.4 connection chip EM4095 of output terminal of clock RDY/CLK, STC12C5A60S2 chip.

Further, audio record circuit comprises chip I SD4004, the pin P2.2 of STC12C5A60S2 chip connects the SCLK end of chip I SD4004, the pin P2.3 of STC12C5A60S2 chip connects the RAC end of chip I SD4004, the pin P2.4 of STC12C5A60S2 chip connects the SS end of chip I SD4004, the pin P5.0 of STC12C5A60S2 chip connects the MOSI end of chip I SD4004, and the pin P5.1 of STC12C5A60S2 chip connects the MISO end of chip I SD4004.

Further, memory adopts chip AT24C128, the SDA end of the pin P4.1 connected storage of STC12C5A60S2 chip, the SCL end of the pin P4.5 connected storage of STC12C5A60S2 chip, clock chip adopts chip DS1302, and serial communication circuit comprises chip MAX232.

Further, also comprise warning circuit, warning circuit adopts buzzer.

The beneficial effects of the utility model are: this kind is based on the identification authentication system of RFID and ZigBee technology, RFID recognition technology being applied to can the intelligent entrance guard of speech recording and reproducing, and the transfer of data of wireless monitor can be realized by Zigbee module, be convenient to manage discrepancy personal information and carry out recording evidence obtaining.This device integrates both advantages, can realize authentication, and is convenient to realize low cost, low-power consumption, short distance, wireless monitor within the specific limits and voice evidence obtaining.

Accompanying drawing explanation

Fig. 1 is the explanation block diagram of the utility model embodiment;

Fig. 2 is the connecting circuit schematic diagram of single-chip microcomputer in embodiment;

Fig. 3 is the connecting circuit schematic diagram of RFID identification circuit in embodiment;

Fig. 4 is the connecting circuit schematic diagram of the recording part of audio record circuit in embodiment;

Fig. 5 is the connecting circuit schematic diagram of the broadcasting part of audio record circuit in embodiment;

Fig. 6 is the connecting circuit schematic diagram of memory in embodiment;

Fig. 7 is the connecting circuit schematic diagram of motor-drive circuit in embodiment;

Fig. 8 is the connecting circuit schematic diagram of display circuit in embodiment;

Fig. 9 is the connecting circuit schematic diagram of clock chip in embodiment;

Figure 10 is the connecting circuit schematic diagram of warning circuit in embodiment;

Figure 11 is the connecting circuit schematic diagram of Zigbee module in embodiment;

Figure 12 is the connecting circuit schematic diagram of USB power supply circuits in power circuit in embodiment;

Figure 13 is the connecting circuit schematic diagram of adaptor power supplies circuit in power circuit in embodiment;

Figure 14 is the connecting circuit schematic diagram of 3V3 power supply circuits in power circuit in embodiment.

Embodiment

Preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.

Embodiment

A kind of identification authentication system based on RFID and ZigBee technology, as Fig. 1, comprise single-chip microcomputer, RFID identification circuit, keyboard, audio record circuit, motor-drive circuit, display circuit, clock chip, memory, serial communication circuit, Zigbee module, power circuit; Single-chip microcomputer adopts STC12C5A60S2 chip, and single-chip microcomputer connects RFID identification circuit, keyboard, audio record circuit, motor-drive circuit, display circuit, clock chip, memory, serial communication circuit, Zigbee module, power circuit respectively; As Fig. 2 and Fig. 3, RFID identification circuit comprises chip EM4095, the pin P2.6 of STC12C5A60S2 chip connects the sleep pattern Enable Pin SHD of chip EM4095, the pin P2.7 of STC12C5A60S2 chip connects the restituted signal output DEMOD_OUT of chip EM4095, the pin P2.5 of STC12C5A60S2 chip connects the modulation input MOD of the ready flag of chip EM4095 and the pin P2.4 connection chip EM4095 of output terminal of clock RDY/CLK, STC12C5A60S2 chip.

Single-chip microcomputer have employed the single-chip microcomputer of STC12C5A60S2 model as control unit, the crystal oscillator that this unit have employed 22.184M as external clock and key reset circuit to the single-chip microcomputer that resets.RFID identification circuit adopts low frequency base station ic EM4095 and antenna to form card reading circuit.Chip EM4095, under the control of single-chip microcomputer, through driven antenna transmitting and receiving signal, thus realizes Card Reader.As Figure 11, single-chip microcomputer connects host computer by Zigbee module, and card using information, encrypted message are transferred to host computer by Zigbee module, realizes the Wireless Data Transmission in this system and intelligent monitoring function.

Motor-drive circuit have employed MAX214, and as Fig. 7, the compatible level input of two-way TTL/CMOS, controls motor positive and inverse.

Audio record circuit comprises chip I SD4004, as Fig. 4, the pin P2.2 of STC12C5A60S2 chip connects the SCLK end of chip I SD4004, the pin P2.3 of STC12C5A60S2 chip connects the RAC end of chip I SD4004, the pin P2.4 of STC12C5A60S2 chip connects the SS end of chip I SD4004, the pin P5.0 of STC12C5A60S2 chip connects the MOSI end of chip I SD4004, and the pin P5.1 of STC12C5A60S2 chip connects the MISO end of chip I SD4004.

Voice recording-reproducing assembly, volume when noise jamming when considering recording and playback may be too low problem, add noise filter circuit in audiohead rear end for filtering noise interference with add audio amplifier circuit in player front end and make its output volume regulate.

Memory adopts chip AT24C128, and the SDA as the pin P4.1 connected storage of Fig. 6, STC12C5A60S2 chip holds, the SCL end of the pin P4.5 connected storage of STC12C5A60S2 chip.The major function of memory is used for access and the access of recording evidence obtaining time of keypad lock password, and this circuit have employed the comparatively large and comparatively simple AT24C128 of circuit of memory space as circuit storage chip.

Clock chip adopts chip DS1302, and as Fig. 9, due to the following clock circuit of Real-time Design of recording evidence obtaining, clock chip provides reference clock for system.Serial communication circuit comprises chip MAX232, and serial communication circuit adopts chip MAX232, communicates with during debugging for carrying out download program to single-chip microcomputer with PC.Also comprise warning circuit, as Figure 10, warning circuit adopts buzzer.Warning circuit is repeatedly staggered the time in authentication and is realized warning function.Multi-screen support function taked by display circuit, as Fig. 8, selects the scheme that LCD1602 and color screen are supported simultaneously.

Power circuit is as Figure 12, Figure 13, Figure 14.Owing to using 5V and 3.3V voltage and being less than 1A to the requirement of maximum output current, in power circuit block, select AMS1117-5.0 and AMS1117-3.3 two chip that have employed in series.In order to enable the more stable effective work of this chip, in circuit design, make it more can stablize effective work the electric capacity adding 10uF and 0.1uF respectively at its two sections.

The password that keyboard uses the keyboard scan of 4*4 to arrange in the process reading input key assignments and memory of single-chip microcomputer carries out contrast and realizes cryptographic function, completes security confidentiality function, thus carries out management and the control of effective and safe to motor module.

Can also arrange Remote module, the transmitting of use/accept chip is PT2262/PT2272, connects communication by the I/O port of single-chip microcomputer.This module can realize remote switch door and forbidding by swipe the card and password two kinds of approach carry out switch gate function.

Embodiment relate to identity identifying technology, ZigBee technology and recording forensic technologies, it is a kind of authentication module of swiping the card based on RFID, combine with cipher authentication, two kinds of authentication modes are also deposited and the authentication mode worked alone completely, judge party's authority, if have permission, reported by recording and playing circuit and have permission, carry out next step operation; If lack of competence, then report lack of competence, and carry out corresponding recording and stay card.

Sound pick-up outfit feature extraction, analysis and recognition system-identification authenticating unit mainly contain single-chip microcomputer, RFID identification circuit, keyboard, remote monitoring module, audio record circuit, motor-drive circuit, display circuit, clock chip, memory, serial communication circuit, Zigbee module.Its framework as shown in Figure 1.

Authentication adopts low-frequency range RFID certification and cipher authentication to combine, and two kinds of authentication modes are also deposited and the authentication mode worked alone completely.Low-frequency range RFID certification adopts the authentication mode of 125KHz exemplary operation frequency range, and whether it is had permission by the identification holder identity reading ID card number is carried out next step operation, if having permission, is reported have permission by recording and playing circuit, carry out next step operation; If lack of competence, then report lack of competence, and carry out corresponding recording and stay card.Cipher authentication have employed the input authentication mode by keyboard scan scanning key assignments, and it judges whether to have permission by the correctness that party inputs password and carries out next step operation, if having permission, is reported have permission by recording and playing circuit, carry out next step operation; If lack of competence, then report lack of competence, and carry out corresponding recording and stay card.

Claims (4)

1., based on an identification authentication system for RFID and ZigBee technology, it is characterized in that: comprise single-chip microcomputer, RFID identification circuit, keyboard, audio record circuit, motor-drive circuit, display circuit, clock chip, memory, serial communication circuit, Zigbee module, power circuit; Single-chip microcomputer adopts STC12C5A60S2 chip, and single-chip microcomputer connects RFID identification circuit, keyboard, audio record circuit, motor-drive circuit, display circuit, clock chip, memory, serial communication circuit, Zigbee module, power circuit respectively; RFID identification circuit comprises chip EM4095, the pin P2.6 of STC12C5A60S2 chip connects the sleep pattern Enable Pin SHD of chip EM4095, the pin P2.7 of STC12C5A60S2 chip connects the restituted signal output DEMOD_OUT of chip EM4095, the pin P2.5 of STC12C5A60S2 chip connects the modulation input MOD of the ready flag of chip EM4095 and the pin P2.4 connection chip EM4095 of output terminal of clock RDY/CLK, STC12C5A60S2 chip.

2. as claimed in claim 1 based on the identification authentication system of RFID and ZigBee technology, it is characterized in that: audio record circuit comprises chip I SD4004, the pin P2.2 of STC12C5A60S2 chip connects the SCLK end of chip I SD4004, the pin P2.3 of STC12C5A60S2 chip connects the RAC end of chip I SD4004, the pin P2.4 of STC12C5A60S2 chip connects the SS end of chip I SD4004, the pin P5.0 of STC12C5A60S2 chip connects the MOSI end of chip I SD4004, and the pin P5.1 of STC12C5A60S2 chip connects the MISO end of chip I SD4004.

3. as claimed in claim 1 or 2 based on the identification authentication system of RFID and ZigBee technology, it is characterized in that: memory adopts chip AT24C128, the SDA end of the pin P4.1 connected storage of STC12C5A60S2 chip, the SCL end of the pin P4.5 connected storage of STC12C5A60S2 chip, clock chip adopts chip DS1302, and serial communication circuit comprises chip MAX232.

4. as claimed in claim 1 or 2 based on the identification authentication system of RFID with ZigBee technology, it is characterized in that: also comprise warning circuit, warning circuit employing buzzer.