CN101170314A

CN101170314A - A circuit and software fusion structure of mobile communication terminal and RF recognition reader

Info

Publication number: CN101170314A
Application number: CNA2006101506872A
Authority: CN
Inventors: 陶成
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-24
Filing date: 2006-10-24
Publication date: 2008-04-30

Abstract

The invention relates to a combining structure of hardware circuit and software module of mobile communication terminal and radio frequency identifying reader. The new device with mobile communication terminal function and radio frequency identifying reader function is not the simple piling of hardware and software but a new circuit and software through the utilization of their common points and features of circuit and software. The invention lifts the hardware and software efficiency of equipment, and lowers the cost of equipment.

Description

The circuit of a kind of mobile communication terminal and radio-frequency identification reader/writer, software fusion structure

Technical field

The present invention relates to mobile communication technology field and REID field.

Background technology

RFID (Radio Frequency Identification) technology application the earliest can be traced back to enemy and we's target identification of aircraft in the World War II, but owing to technology and cost reason, never is used widely.In recent years, along with the development of technology such as large scale integrated circuit, network service, information security, the RFID technology enters the commercial applications stage.Because have characteristics such as high-speed mobile object identification, multiple target identification and contactless identification, the RFID technology demonstrates huge development potentiality and application space, is considered to one of the most rising information technology of 21 century.

The RFID technology relates to many high-tech sectors such as information, manufacturing, material, contains technology such as radio communication, chip design and manufacturing, Antenna Design and manufacturing, label encapsulation, the system integration, information security.According to the difference of energy supply mode, the RFID label is divided into active, passive and partly active three kinds; According to the difference of operating frequency, the RFID label is divided into the label of low frequency (LF), high frequency (HF), hyperfrequency (UHF) and microwave frequency band (MW).RFID uses based on LF and HF label product in the world at present; The UHF label begins large-scale production, can discern at a distance and advantage cheaply because it has, and is expected to become in future main flow; The MW label is applied in part country.The RFID technology has been applied to a plurality of fields such as train identification, identity card and voucher management, animal identification, special equipment and hazardous material management, public transport and production process management.

Mobile communication technology is one of greatest invention in last century, and its widely-used life style that has greatly changed people has realized the requirement of people to communication 3W (no matter when, where can communicate by letter with anyone).The mobile communication industry is to develop industry the most rapidly over nearly 20 years, and the owning amount of China's mobile phone ranks first in the world more.

Mobile communication terminal is a kind of inevitable developing direction with combining of RFID technology.Zhan Wanquan, Chen Hui just belong to this type of in the patent (publication number CN 1588386A) of China Intellectual Property Office's application.In above-mentioned patent, Zhan Wanquan etc. propose a kind of radio-frequency (RF) identification and combine the system and method for realizing item verification with mobile communication system, its main viewpoint is a communication channel of utilizing mobile communication system to provide, the database of information inspection module and information centre is coupled together, finishing the check of article, but do not provide the circuit structure that the information inspection module combines with mobile communication terminal.Similarly patent also has the patent (CN1662920A) of Nokia's application etc.

Summary of the invention

The objective of the invention is to provide circuit, the software fusion structure of a kind of mobile communication terminal and radio-frequency identification reader/writer.Utilize this structure, when the equipment of assurance is finished mobile communication terminal function and radio-frequency identification reader/writer function, reduce hardware, the reduction equipment of circuit volume, reduce software overhead, what help technology applies, helps developing the better application system.

Fig. 1 is a kind of block diagram of mobile communication terminal, and it is made up of central processor unit 11, memory cell 12, display unit 13, keyboard unit 14, baseband processing unit 15, intermediate frequency unit 18, radio frequency unit 16, antenna element 17, power subsystem 19 etc.

Fig. 2 is a kind of block diagram of hand-hold type radio-frequency identification reader/writer, and it is made up of central processor unit 21, memory cell 22, display unit 23, keyboard unit 24, baseband processing unit 25, radio frequency unit 26, antenna element 27, power subsystem 29 etc.Be not difficult to find out that from Fig. 1 and Fig. 2 these two kinds of circuit block diagrams have the module that much has same or similar function, adopt suitable method that the module of same or similar function is merged, will significantly reduce the hardware of circuit, the volume of reduction equipment.

From the software aspect, also there are many modules can be shared, as display module.As long as the Presentation Function that adds radio-frequency identification reader/writer on the software for display of mobile communication terminal can be finished the demonstration of 2 kinds of functions, and this moment software platform be that shared, character library also is shared.

According to fusion structure of the present invention, can be under the principle of global optimization hardware, the software design of simplified apparatus, improve the usefulness of equipment.

Description of drawings

Fig. 1: a kind of mobile communication terminal block diagram

Fig. 2: a kind of block diagram of hand-hold type radio-frequency identification reader/writer

Fig. 3: a kind of realization block diagram of UHF rfid interrogator local oscillation circuit

Fig. 4: a kind of realization block diagram of two-band GSM/DCS mobile phone local oscillation circuit

Fig. 5: the fusion circuit of a kind of two-band GSM/DCS mobile phone local oscillation circuit and UHF rfid interrogator local oscillation circuit is realized block diagram

Fig. 6: two-band GSM/DCS mobile phone local oscillation circuit configurator flow chart

Fig. 7: UHF rfid interrogator local oscillation circuit configurator flow chart

Fig. 8: the fusion structure flow chart of configuration of two-band GSM/DCS mobile phone local oscillation circuit and UHF rfid interrogator local oscillation circuit configurator

Embodiment

Here we only provide a kind of implementation method of the present invention with the fusion of the local oscillation circuit of the local oscillation circuit of UHF rfid interrogator and two-band GSM mobile handset.

According to the requirement of EPCGLOBAL G2 standard, the operating frequency of UHF rfid interrogator is: 860MHz-960MHz, this also is the requirement to its local frequency.Having many circuit can realize such local oscillation circuit, is acp chip such as the chip ADF4111 that adopts ADI (Analog Device Inc.), cooperates simple peripheral circuit just can realize this requirement, as shown in Figure 3.The clock signal that frequency reference source 35 produces high stability is given the reference signal of ADF4111 unit 32 as frequency synthesizer, central processor unit 31 writes configuration data in the register of ADF4111 unit 32 by universal serial bus, controls its working method, frequency dividing ratio etc.The phase discrimination signal that ADF4111 unit 32 produces is given low pass filter unit 33 and is carried out the high fdrequency component of low-pass filtering with erasure signal, and filtered signal gives voltage control oscillator unit 34 so that it produces desired output frequency.Another road of the oscillator signal that voltage control oscillator unit 34 produces is given ADF4111 unit 32 and is used for carrying out phase demodulation.

The local frequency scope that two-band GSM/DCS mobile phone requires is: GSM:1150.2～1184.8MHz, DCS:1580.2～1654.8MHz.Having many circuit can realize such local oscillation circuit, is acp chip such as the chip ADF4360-7 that adopts ADI, cooperates simple peripheral circuit just can realize this requirement, as shown in Figure 4.The clock signal that frequency reference source 45 produces high stability is given the reference signal of ADF4360-7 unit 42 as frequency synthesizer, central processor unit 41 writes configuration data in the register of ADF4360-7 unit 42 by universal serial bus, controls its working method, frequency dividing ratio etc.The phase discrimination signal that ADF4360-7 unit 42 produces is given low pass filter unit 43 and is carried out the high fdrequency component of low-pass filtering with erasure signal, and filtered signal gives voltage control oscillator unit 421 so that it produces desired output frequency.The oscillator signal that voltage control oscillator unit 421 produces is given amplifier unit 44 and is amplified back output.

According to fusion circuit structure of the present invention, can adopt fusion circuit structure shown in Figure 5 to realize a local oscillation circuit, can satisfy the local oscillator of desired local oscillator of UHF rfid interrogator and the requirement of two-band GSM/DCS mobile phone simultaneously.The frequency range of considering the voltage controlled oscillator on the chip ADF4360-7 of Analog Devices Inc is: 350MHz-1800MHz covers the local oscillator scope of radio-frequency identification reader/writer and two-band GSM mobile handset, fully so still adopt this chip in fusion structure.The operation principle of its operation principle and above-mentioned Fig. 4 is basic identical, different is to have increased a single-pole double throw RF switch unit 58 after amplifier unit 54, this radio-frequency (RF) switch is subjected to the control of the control signal CTL that CPU sends here, output signal with decision amplifier unit 54 is to give the modem module 56 of read write line, or the modem module of mobile phone 57.

Above-mentioned promptly is a kind of execution mode of hardware circuit fusion structure of the present invention.

Still the example above adopting, we provide the execution mode that a kind of software module merges.Fig. 6 is the software arrangements flow process of two-band GSM mobile handset local oscillation circuit.After program begins, judge through Unit 61 earlier,, then change Unit 62 over to, access the parameter of configuration GSM local oscillator if work in the GSM mode.In Unit 63, call the write operation subprogram then, the control register among the ADF4360-8 is write, in Unit 64, the data that write are carried out verification.If correct, then finish layoutprocedure, if incorrect, then return Unit 63.If through 61 unit judges, equipment work is in the DCS mode, and then program enters Unit 65, accesses the parameter of configuration DCS local oscillator.In Unit 66, call the write operation subprogram then, the control register among the ADF4360-8 is write, in Unit 67, the data that write are carried out verification.If correct, then finish layoutprocedure, if incorrect, then return Unit 67.

Fig. 7 is the software arrangements flow process of UHF rfid interrogator local oscillation circuit.After program begins, access the parameter of configuration GSM local oscillator in Unit 71.In Unit 72, call the write operation subprogram then, the control register among the ADF111 is write, in Unit 73, the data that write are carried out verification.If correct, then finish layoutprocedure, if incorrect, then return Unit 72.

According to fusion thought of the present invention, the software flow after the fusion as shown in Figure 8.After program begins, judge through Unit 801 earlier,, then change Unit 811 over to, access the parameter of configuration GSM local oscillator if work in the GSM mode.In Unit 812, call the write operation subprogram then, the control register among the ADF4360-8 is write, in Unit 813, the data that write are carried out verification.If correct, the control signal CTL that then puts radio-frequency (RF) switch is " 0 " (low level), makes radio-frequency (RF) switch give the modulation-demodulation circuit of mobile phone with local oscillation signal, finishes layoutprocedure, if incorrect, then returns Unit 812.

If through 801 unit judges, equipment work is in the DCS mode, and then program enters Unit 831, accesses the parameter of configuration DCS local oscillator.In Unit 832, call the write operation subprogram then, the control register among the ADF4360-8 is write, in Unit 833, the data that write are carried out verification.The control signal CTL that then puts radio-frequency (RF) switch is " 0 " (low level), makes radio-frequency (RF) switch give the modulation-demodulation circuit of mobile phone with local oscillation signal, finishes layoutprocedure, if incorrect, then returns Unit 832.

If through 801 unit judges, equipment work is in the RFID mode, and then program enters Unit 821, accesses the parameter of configuration RFID local oscillator.In Unit 822, call the write operation subprogram then, the control register among the ADF4360-8 is write, in Unit 823, the data that write are carried out verification.The control signal CTL that then puts radio-frequency (RF) switch is " 1 " (low level), makes radio-frequency (RF) switch give the modulation-demodulation circuit of rfid interrogator with local oscillation signal, finishes layoutprocedure, if incorrect, then returns Unit 822.

Even a kind of embodiment of above-mentioned software fusion structure.

Claims

1. fusion circuit, the software configuration of mobile communication terminal and radio-frequency identification reader/writer, the partial circuit module that it is characterized in that mobile communication terminal and radio-frequency identification reader/writer are that shared, part software module is shared.

2. mobile communication terminal according to claim 1, it is characterized in that, described mobile communication terminal can make all transportable terminals with data or function of voice communication, as notebook computer, personal digital assistant device, mobile communication phone, cluster telephone etc.

3. partial circuit module according to claim 1 is shared, it is characterized in that shared module be that mobile communication terminal, radio-frequency identification reader/writer are indispensable when realizing its function.

4. partial circuit module according to claim 1 is shared, it is characterized in that shared module identical, perhaps different may be applied to a kind of function separately with it the time.

5. partial circuit module according to claim 1 is shared, it is characterized in that shared module can 2 kinds of circuit be integrated in the same chip a perhaps integrated part by a kind of new integrated circuit with multi-purpose chip.

6. part software module according to claim 1 is shared, it is characterized in that shared software module is indispensable when realizing mobile communication terminal function and realization radio frequency recognition function.

7. part software module according to claim 1 is shared, it is characterized in that when shared software module may be applied to a kind of function separately with it identical, perhaps different.