CN201117010Y - PCI card type read-write equipment module - Google Patents
PCI card type read-write equipment module Download PDFInfo
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- CN201117010Y CN201117010Y CNU2007201709152U CN200720170915U CN201117010Y CN 201117010 Y CN201117010 Y CN 201117010Y CN U2007201709152 U CNU2007201709152 U CN U2007201709152U CN 200720170915 U CN200720170915 U CN 200720170915U CN 201117010 Y CN201117010 Y CN 201117010Y
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- pci card
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- card formula
- writer module
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Abstract
The utility model discloses a PCI card type read-write equipment module, which solves the technical problem that the read-write equipment is enabled to have small volume and low cost. The equipment module comprises a microwave radio module, a coding and encoding processing unit, a control and protocol processing part, an IO output control processing part and a PCI interface, wherein the microwave radio module comprises a sending and receiving circuit, the coding and encoding processing unit comprises a coding unit and an encoding unit, the control and protocol processing part is provided with a microprocessor, the read-write equipment module is compared with an existing technique, the read-write equipment sends microwave energy to excite an electronic label to work and simultaneously sends orders to the electronic label, after the electronic label obtains the microwave energy, the read-write equipment module demodulates, amplifies, decodes, and decrypts an echo-signal which is reflected by the label according to reflected results of the orders which send to realize that the fixed data and the data in the data zone which are memorized in the label are read, and data in a data zone also can be rewritten, the volume is small, and cost is low.
Description
Technical field
The utility model relates to the read write line of a kind of radio frequency identification equipment, particularly a kind of radio frequency identification equipment.
Background technology
In radio frequency identification equipment, PCI (Peripheral Component Interconnect, be the Peripheral Component Interconnect standard) the cassette reader/writer module can be at a distance (with electronic tag at a distance of 4 meters) content in the electronic tag that satisfies the ISO18000-6B/C agreement is read and write, and the information of the electronic tag read and write is sent into the upper end PC by serial line interface or network interface handles.The fixed read write line of prior art has bigger physical size and profile, adopts the external ac power source power supply, generally only is adapted to be mounted within fixing place and uses.After the EPC C1G2 standard of releasing along with EPC Global tissue (becoming the ISO18000-6C standard afterwards) becomes the implementation criteria of logistics field, a large amount of enterprises, retail supermarket, logistic industry begin applying RFID (Radio Frequency Identification, be REID) Technical Follow-Up and the production of managing commodity, circulation, retail etc., for volume that reduces equipment integration and the powerup issue that solves read write line, need a kind of read write line of suitable rig-site utilization at the scene, so that label is read and write.
Summary of the invention
The purpose of this utility model provides a kind of pci card formula reader/writer module, and the technical matters that solve is to make the read write line volume little, cheap, can be integrated in the PC.
The utility model is by the following technical solutions: a kind of pci card formula reader/writer module, described pci card formula reader/writer module comprise microwave radio module, encoding and decoding processing unit, control and protocol processes part, IO output control and treatment part and pci interface; Described microwave radio module comprises radiating circuit and receiving circuit, radiating circuit comprises carrier wave combiner circuit, prime amplifier, mixting circuit, filtering circuit, the final stage power amplification circuit that is linked in sequence, and receiving circuit comprises tag reflection signal demodulating circuit, differential amplifier circuit, low-pass filter circuit and the comparator circuit that is linked in sequence; Described encoding and decoding processing unit includes the Code And Decode unit; Described control and protocol processes partly have and Code And Decode unit microprocessor linked; Described comparator circuit connects the Code And Decode unit; The Code And Decode unit is connected with carrier wave combiner circuit, modulation drive circuit, and modulation drives and connects mixting circuit.
Carrier wave combiner circuit of the present utility model is made up of compensation crystal oscillator and frequency synthesizer, and compensation crystal oscillator adopts T12.8H4S, and frequency synthesizer adopts PLL400-915A.
Prime amplifier of the present utility model adopts radio frequency chip RF2381.
Mixting circuit of the present utility model adopts frequency mixer HMC207S8, and described filtering circuit adopts SAW filter SF2904; Described final stage power amplification circuit adopts power amplification chip PF01411A.
Reflected signal demodulator circuit of the present utility model constitutes four road diode demodulator circuits of 1/8th wavelength microstrip lines apart by four bilateral diodes, and described differential amplifier circuit constitutes the secondary differential amplifier by four groups of triodes; Described low-pass filter circuit adopts two programmable filter PAC80 to constitute, and described comparator circuit is made of comparable chip MAX942.
Modulation drive circuit of the present utility model by programmable filter, first one by one triode constitute, first one by one the base stage of triode connect the Code And Decode unit, collector connects the programmable filter output terminal, grounded emitter, and programmable filter outputs signal to frequency mixer.
Code And Decode of the present utility model unit adopts APA150.
Be connected with signal driving unit between Code And Decode of the present utility model unit and the comparable chip.
Microprocessor of the present utility model adopts MC9S12NE62.
IO output control and treatment part of the present utility model and pci interface have relay drive circuit, relay drive circuit constitutes three groups of driving circuits respectively by first to the 3rd triode, be serially connected with reverse diode between the 5V power supply and first to the 3rd transistor emitter, electrical equipment control coil two ends are succeeded at each diode two ends respectively.
The utility model compared with prior art, adopt the microwave radio module, the encoding and decoding processing unit, control and protocol processes part, IO output control and treatment part and pci interface, the work of read write line launched microwave energy excited electrons label, issue the electronic tag order simultaneously, after electronic tag is obtained microwave energy, the order that sends according to read write line reflects corresponding results, the echoed signal demodulation of pci card formula reader/writer module by tag reflection is returned, amplify, decoding, the fixed data of realization reading tag stored and the data of data field are handled in decoding, also can rewrite the data in the data field, volume is little, cheap, can be widely used in satisfying the read-write of the electronic tag of ISO18000-6B/C agreement, reading/writing distance is greater than 3 meters, can be inserted in easily on the PC slot of PC and work, solve installation and powerup issue.
Description of drawings
Fig. 1 is the microwave radio radiating circuit schematic diagram of the utility model embodiment.
Fig. 2 is demodulation of tag reflection signal and the differential amplifier circuit schematic diagram of the utility model embodiment.
Fig. 3 is that the low pass filtered of the utility model embodiment involves the comparator circuit schematic diagram.
Fig. 4 is the encoding and decoding processing unit circuit theory diagrams of the utility model embodiment.
Fig. 5 is control and the protocol treatment circuit schematic diagram of the utility model embodiment.
Fig. 6 is the IO output control processing circuit schematic diagram of the utility model embodiment.
Fig. 7 is the pci interface circuit theory diagrams of the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.Pci card formula reader/writer module of the present utility model comprises four parts: microwave radio module, encoding and decoding processing unit, control and protocol processes part, IO output control and treatment part and pci interface.
The microwave radio module comprises radiating circuit, receiving circuit.
As shown in Figure 1, the radiating circuit of microwave radio module comprises: the carrier wave combiner circuit that is linked in sequence, prime amplifier, mixting circuit, filtering circuit, final stage power amplification circuit, wherein, mixting circuit is connected with modulation drive circuit.(1) the carrier wave combiner circuit is made up of compensation crystal oscillator T100 (T12.8H4S), frequency synthesizer U105 (PLL400-915A); (2) prime amplifier is made of radio frequency chip U106 (RF2381); (3) mixting circuit adopts frequency mixer U107 (HMC207S8); The signal of radio frequency chip U106 output is exported to 2 pin of U108 again to 2 pin of U107 by its 7 pin; (4) filtering circuit adopts SAW filter U108 (SF2904); (5) the final stage power amplification circuit is made of power amplification chip U109 (PF01411A), and its 1 pin connects 5 pin of U108, and 4 pin are power take-off; (6) modulation drive circuit by programmable filter U110 (PAC80), first one by one triode U111 (3904) constitute, the base stage of triode meets the Code And Decode unit U2 of encoding and decoding processing unit, collector connects 9 pin of U110, grounded emitter, and 14 pin of U110 connect 5 pin of U107.
The receiving circuit of microwave radio module comprises: the tag reflection signal demodulating circuit, differential amplifier circuit, low-pass filter circuit and the comparator circuit that are linked in sequence.
As shown in Figure 2, (7) tag reflection signal demodulating circuit, by the one 0 one two-way diode D101, the one 0 two bilateral diode 102, the one 0 six bilateral diode D106, four road diode demodulator circuits that the one 0 seven bilateral diode 107 constitutes at a distance of 1/8th wavelength microstrip lines, each diode demodulator circuit is respectively through the first First Five-Year Plan capacitor C 115, the one five two capacitor C 152, the one five three capacitor C 153, the one six three capacitor C 163, connect 3 pin of wave filter U104 (LFCN-1000), U104 is connected with antenna, 3 pin of the first the May 4th capacitor C, 154 1 termination U104, other end ground connection, each diode demodulator circuit output terminal is parallel with one group of electric capacity (C101 respectively, C105, C136, C140,) and resistance (R102, R104, R120, R122), be serially connected with the one 0 two capacitor C 102 thereafter respectively, the one 0 four capacitor C 104, the first pseudo-ginseng capacitor C 137, first three nine-day periods after the winter solstice capacitor C 139.(8) differential amplifier circuit MAT04 constitutes the secondary differential amplifier by four groups of triode U100A～U100D, U101A～U101D, U102A～U102D, U103A～U103D, receives the signal of four road diode demodulator circuits output respectively.
As shown in Figure 3, low-pass filter circuit adopts two programmable filter U11, U12 (PAC80) to constitute, and comparator circuit is made of comparable chip U13 (MAX942).
As shown in Figure 4, the encoding and decoding processing unit comprises: Code And Decode unit U2 (APA150), clock unit X2 (24MHz crystal oscillator), be connected signal driving unit U3, U4 (74HCT245) between the comparable chip U13 of Code And Decode unit U2 and comparator circuit.
As shown in Figure 5, control and protocol processes partly comprise: microprocessor U1 (MC9S12NE62), clock unit X1 (25MHz crystal oscillator), and Ethernet transformer and RJ-45 interface T1, NJ1, the chip for driving U5 of interface adopts ADM202.
As shown in Figure 6, IO output control and treatment partly comprises: constitute three group relay driving circuits respectively by first to the 3rd triode Q1～Q3 (PMB3906), be serially connected with reverse diode D1～D3 (IN4148) between 5V power supply and the triode Q1～Q3 emitter, electrical equipment RLY1～RLY3 (TQ2-5V) control coil two ends are succeeded at diode D1～D3 two ends respectively.
As shown in Figure 7, pci interface J1 adopts PCICON62.
The workflow of pci card formula reader/writer module of the present utility model: during pci card formula reader/writer module energized, the final stage power amplification circuit in the microwave radio module, remaining functional unit all is powered, and processor software is connected and accepts the operational order of PC with PC by Ethernet interface or serial line interface.
The principle of work of major function unit:
The frequency synthesizer U105 of the radiating circuit of microwave radio module (T100, U105, U106, U107, U108, U109, U110, U111), U2 by codec unit controls the single-point carrier wave that it produces 902～928MHz band limits by universal serial bus (CLOCK, DATA, EN), the power of carrier wave is 0dBm, and compensation crystal oscillator T100 provides frequency reference for this frequency synthesizer; Its output power is 14dBm behind the carrier wave process integrated amplifier U106 that generates; Carrier wave after the amplification enters frequency mixer U107, and the signal that will launch is modulated, and this frequency mixer is a passive frequency mixer, has the decay of about 9 dB, and the radiofrequency signal power after ovennodulation is about 5dBm; After signal after the modulation was input to watchband bandpass filter U108 filtering clutter, power attenuation was 2dBm, and the output signal of bandpass filter is directly delivered to power amplifier module and is amplified to about 32.3dBm, goes out through aerial radiation by microstrip line (radio-frequency channel).From the signal that will launch of Code And Decode unit U2 earlier through modulation drive circuit first one by one triode U111 handle, outside programmable filter U110 filtering band, send into frequency mixer U107 behind the clutter again and modulate.
After the label echo signal receives via antenna, by by four insert at a distance of 1/8th wavelength microstrip line places by diode D101～102, the demodulator circuit that build D105～106 carries out demodulation, four roadbed band signals are exported in demodulation, through coupling capacitance (C102, C104, C137, C139) back is every the direct current composition that has gone demodulation output, it is the secondary differential amplifier circuit that core devices is built that baseband signal is imported by differential amplifier U100～U103 again, be enlarged into encoding and decoding and handle desired amplitude 40kHz, send into low-pass filtering and comparator circuit again.
Four road signs after demodulator circuit demodulation and amplification are signed back the filtering circuit filtering that the ripple signal is made up of programmable filter U11, U12 earlier, filtered four tunnel echoed signals, after respectively anti-phase two paths of signals being compared by differential comparator U13, output is delivered to Code And Decode unit U2 through the label echo signal of the two-way quadrature of integer and is done decoding processing.
The Code And Decode unit U2 in the encoding and decoding processing unit (U2, U3, U4, X2) and the microprocessor U1 of control and protocol element after will encoding from the signaling data of U1 will pass to signal the frequency synthesizer of the radiating circuit of microwave radio module by the data bus communication.Code And Decode unit U2 carries out Code And Decode with the two-way label echo signal of comparer output, and the data storage that decoding produces is in its buffer memory, by interrupt mode notice microprocessor U1 reading of data.U3, U4 are chip for driving, increase the driving force of comparable chip U13 output signal.X2 is the clock of U2.
Microprocessor U1 is 16 bit processors of Freescale, bears the realization of total system control function and ISO18000-6B/C agreement in the utility model.The chip for driving U5 of serial line interface is converted to the RS232 level with Transistor-Transistor Logic level.TI, NJ1 are the conversion and the interface circuit of Ethernet.X1 is the clock of U1.
Three road relay signals from microprocessor U1 drive three triodes respectively, and then control three relays and realize opening and closing movements, and relay offers the user in order to controlling some signals, as pilot lamp etc.The pci interface unit is the PCB golden finger encapsulation of standard pci interface, is used for pci card formula reader/writer module insertion of the present utility model is connected in the PCI slot of PC.
Claims (10)
1. pci card formula reader/writer module is characterized in that: described pci card formula reader/writer module comprises microwave radio module, encoding and decoding processing unit, control and protocol processes part, IO output control and treatment part and pci interface; Described microwave radio module comprises radiating circuit and receiving circuit, radiating circuit comprises carrier wave combiner circuit, prime amplifier, mixting circuit, filtering circuit, the final stage power amplification circuit that is linked in sequence, and receiving circuit comprises tag reflection signal demodulating circuit, differential amplifier circuit, low-pass filter circuit and the comparator circuit that is linked in sequence; Described encoding and decoding processing unit includes Code And Decode unit (U2); Described control and protocol processes partly have and Code And Decode unit (U2) microprocessor linked (U1); Described comparator circuit connects Code And Decode unit (U2); Code And Decode unit (U2) is connected with carrier wave combiner circuit, modulation drive circuit, and modulation drives and connects mixting circuit.
2. pci card formula reader/writer module according to claim 1, it is characterized in that: described carrier wave combiner circuit is made up of compensation crystal oscillator (T100) and frequency synthesizer (U105), compensation crystal oscillator (T100) adopts T12.8H4S, and frequency synthesizer (U5) adopts PLL400-915A.
3. pci card formula reader/writer module according to claim 2 is characterized in that: described prime amplifier adopts radio frequency chip (U106) RF2381.
4. pci card formula reader/writer module according to claim 3 is characterized in that: described mixting circuit adopts frequency mixer (U107) HMC207S8, and described filtering circuit adopts SAW filter (U108) SF2904;
Described final stage power amplification circuit adopts power amplification chip (U109) PF01411A.
5. pci card formula reader/writer module according to claim 4, it is characterized in that: described reflected signal demodulator circuit constitutes four road diode demodulator circuits of 1/8th wavelength microstrip lines apart by four bilateral diodes, and described differential amplifier circuit constitutes the secondary differential amplifier by four groups of triodes; Described low-pass filter circuit adopts two programmable filters (U11, U12) PAC80 to constitute, and described comparator circuit is made of comparable chip (U13) MAX942.
6. pci card formula reader/writer module according to claim 5, it is characterized in that: described modulation drive circuit by programmable filter (U110), first one by one triode (U111) constitute, first one by one the base stage of triode (U111) connect Code And Decode unit (U2), collector connects programmable filter (U110) output terminal, grounded emitter, programmable filter (U110) outputs signal to frequency mixer (U107).
7. pci card formula reader/writer module according to claim 6 is characterized in that: described Code And Decode unit (U2) adopts APA150.
8. pci card formula reader/writer module according to claim 7 is characterized in that: be connected with signal driving unit (U3, U4) between described Code And Decode unit (U2) and the comparable chip (U13).
9. pci card formula reader/writer module according to claim 8 is characterized in that: described microprocessor (U1) adopts MC9S12NE62.
10. pci card formula reader/writer module according to claim 9, it is characterized in that: described IO output control and treatment part and pci interface have relay drive circuit, (Q1～Q3) constitutes three groups of driving circuits respectively to relay drive circuit by first to the 3rd triode, (Q1～Q3) is serially connected with reverse diode between the emitter (D1～D3), (D1～D3) succeeds at two ends electrical equipment (the control coil two ends of RLY1～RLY3) respectively to each diode for the 5V power supply and first to the 3rd triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201709152U CN201117010Y (en) | 2007-11-15 | 2007-11-15 | PCI card type read-write equipment module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201709152U CN201117010Y (en) | 2007-11-15 | 2007-11-15 | PCI card type read-write equipment module |
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| Publication Number | Publication Date |
|---|---|
| CN201117010Y true CN201117010Y (en) | 2008-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201709152U Expired - Fee Related CN201117010Y (en) | 2007-11-15 | 2007-11-15 | PCI card type read-write equipment module |
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| CN (1) | CN201117010Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882231A (en) * | 2010-06-30 | 2010-11-10 | 方正科技集团苏州制造有限公司 | RFID (Radio Frequency Identification Devices) reader-writer and data transmission method thereof |
| CN103049940A (en) * | 2011-10-15 | 2013-04-17 | 成都锐奕信息技术有限公司 | Device for triggering card reader in intelligent vehicle-mounted terminal |
-
2007
- 2007-11-15 CN CNU2007201709152U patent/CN201117010Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882231A (en) * | 2010-06-30 | 2010-11-10 | 方正科技集团苏州制造有限公司 | RFID (Radio Frequency Identification Devices) reader-writer and data transmission method thereof |
| CN101882231B (en) * | 2010-06-30 | 2012-11-14 | 方正科技集团苏州制造有限公司 | RFID (Radio Frequency Identification Devices) reader-writer and data transmission method thereof |
| CN103049940A (en) * | 2011-10-15 | 2013-04-17 | 成都锐奕信息技术有限公司 | Device for triggering card reader in intelligent vehicle-mounted terminal |
| CN103049940B (en) * | 2011-10-15 | 2014-12-31 | 成都锐奕信息技术有限公司 | Device for triggering card reader in intelligent vehicle-mounted terminal |
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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: 20080917 Termination date: 20131115 |