CN2153094Y

CN2153094Y - Microwave active electronic responder

Info

Publication number: CN2153094Y
Application number: CN 93212179
Authority: CN
Inventors: 索召和; 贾晓星; 丁建国
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-10
Filing date: 1993-05-10
Publication date: 1994-01-12
Anticipated expiration: 2003-05-10

Abstract

The utility model relates to an ID card which can automatically answer after receiving microwave interrogation signals, which is designed for the aims of performance improvement, convenience, application, etc. The utility model comprises an interrogation signal receiver which is composed of an antenna and a wave detector, a signal answering generator and a signal answering transmitter which is composed of a frequency carrying generator, a ring modulator, a power amplifying device and the antenna. The signal answering generator is composed of an encoder and an address code generating unit. The utility model uses a programmable element as the encoder, having the advantages of unique code, agility, convenience, high code rate, etc. The utility model adopts the structure that a circular sending and receiving antenna and a circuit board are connected into integration, providing convenience for batch production. The utility model can be used as an electronic vehicle card, an electronic label, etc.

Description

Microwave active electronic responder

The utility model relates to a kind of telltale, but relates to a kind of device of auto answer after receiving the microwave interrogating signal or rather.

Should answer device and claim the ID card again, the form of ID card has multiple, wherein in the electronics ID card effect surface acoustic wave passive card is arranged preferably is that SID card and active electronic card are the EID card, it is simple that technology is made in the SID blocking, the reliability height, general bit rate is higher, but function is poor, and active EID card is complicated, general bit rate is lower, but function is strong, and coded system is flexible, has bigger superiority.

The purpose of this utility model be unified existing SID card and EID card advantage, and design a kind of novel electronic ID card, this electronics ID clamping is received behind the microwave request signal and can be automatically the coded signal of himself feature of the representative of storage in the card to be launched with the microwave form, thereby constitutes microwave active electronic transponder.

Microwave active electronic transponder of the present utility model, comprise the microwave interrogating signal receiver of forming by antenna and wave detector, be subjected to the answer signal generator of interrogating signal control and the answer signal transmitter of forming by carrier-fequency generator, ring modulator, power amplifier, antenna, it is characterized in that: described answer signal generator comprises the scrambler that is made of programming device and provides the address code generation unit of address signal to programmable-coder that described answer signal generator is positioned between wave detector and ring modulator.

After antenna receives the microwave interrogating signal, detect this signal by wave detector, be reference signal with wave detector output pulse, start the data-signal that scrambler is inserted in answer signal generator serial output in advance, after modulation, amplification, launch again by antenna.

Electrical equipment of the present utility model and connection line thereof all are produced on the printed circuit board (PCB), form an electronics ID card.For example be applied on the vehicle identification,, be used to inform the code of expression vehicle characteristics such as license number etc. as electronic license.

Describe technology of the present utility model in detail below in conjunction with the embodiment accompanying drawing, the dual-mode antenna of embodiment is operated in uhf band.

Accompanying drawing 1 is the utility model microwave active electronic transponder theory diagram.

Accompanying drawing 2 is the enforcement circuit diagram of theory diagram shown in Figure 1.

Accompanying drawing 3 is the card structure arrangenent diagram of the utility model microwave active electronic transponder.

Referring to accompanying drawing 1, receiving antenna 10, wave detector 20, answer signal generator 30, ring modulator 40, carrier-fequency generator 50, amplifirer 60, emitting antenna 70, wherein answer signal generator 30 comprises scrambler 301 and address code generation unit 302, address code generation unit 302 comprises clock generator 3021, interrogating signal time-delay and N group address sign indicating number gate signal produce circuit 3022 and address code generator 3023, and address code generation unit 302 is a reference signal with the output pulse of wave detector 20, and time-delay earlier produces for the gate signal that generates N group address sign indicating number again, under clock 3021 effects, export each group address sign indicating number then, call over data in the scrambler through address code generator 3023.

Electronic cards is used power supply VCC, but external power supply VC provide through voltage stabilizer is after 80s, also can directly provide by battery EC.

Referring to accompanying drawing 2, frame of broken lines is depicted as address code generation unit 302 among the figure, and all the other frame meanings are with shown in Figure 1.Detection, modulation, carrier frequency take place and power amplifier is the current techique that existing microwave transmitting and receiving is believed, so do not give unnecessary details.

The answer signal generator is to adopt EPROM to make scrambler, the two-stage monostalbe trigger constitutes the time-delay of wave detector output reference pulse and the gate signal of 33 group address sign indicating numbers produces circuit, with the counter is the address code generator, the also available GAL circuit of circuit in the frame of broken lines 302 substitutes, the calculated address signal.

U1:A, U1:B, U2:A, U3:A, U3:B and crystal resonator N1 form the address code generation unit among the figure, output A0-A5 six bit address signals, and U4 is a programmable-coder, embodiment adopts 2K * 8 PROM2716, D7 output serial code data.

Dual-mode antenna A1 receives interrogating signal after export a monopulse trigger pip at the B point after the detection, produce time-delay through U1:A, U1:B produces one for the gate signal that generates 33 group address sign indicating numbers, U2:A is with crystal oscillator 16 frequency divisions, provide clock, again through U3:A, U3:B is transformed to address code control U4PROM 2716 work, coded data is stored among the U4, under the address code effect, 33 coded signals of serial output are after rf modulations, return the inquiry end by dual-mode antenna A1 emission, realize answering.

Get programming device as scrambler, that the gordian technique that makes electronics ID card is that unique encoded question becomes is very simple, easily and flexibly, can change at any time and help to produce in batches, bit rate is easy to accomplish 〉=4Mb/s simultaneously, be convenient to identification compatibility with surface acoustic wave passive card SID card, programming device also can adopt PAL, GAL, FPGA, EEPROM, PEEL etc. except that adopting the EPROM.

Referring to accompanying drawing 3, the dual-mode antenna of electronics ID card adopts printing tours antenna and circuit board one, forms the mixed printing structure, and A1 is the tours antenna of printing among the figure, and 90 is the circuit component district, and T1 is the coupled structure of antenna A1, provides respectively to transmit and receive path.

This antenna structure technology simply is convenient to produce in batches, except that adopting the tours antenna, also can be used for dipole antenna.

The utility model is simple in structure, and is with low cost, has the advantage of existing EID card and SID card, can be widely used in the recognition technology to moving object, as the train number of copying automatically, the container number of copying automatically, automatically charging in car park, the automatic charge of vehicle pass-through etc.

Claims

1, a kind of microwave active electronic transponder, comprise the microwave interrogating signal receiver of forming by antenna and wave detector, be subjected to the answer signal generator of interrogating signal control and the answer signal transmitter of forming by carrier-fequency generator, ring modulator, power amplifier, antenna, it is characterized in that: described answer signal generator comprises the scrambler that is made of programming device and provides the address code generation unit of address signal to programmable-coder that described answer signal generator is positioned between wave detector and ring modulator.

2, microwave active electronic transponder according to claim 1 is characterized in that described antenna is for the annular dual-mode antenna of printing, with described microwave interrogating signal receiver, answer signal generator and answer signal transmitter integrative-structure.

3, microwave active electronic transponder according to claim 1 is characterized in that the address code generation unit of described answer signal generator comprises time-delay that is connected into by the secondary monostalbe trigger and the address code generator that produces circuit, clock generator and be connected into by counter for the gate signal that generates N group address sign indicating number.