CN201993778U - Ultrahigh frequency passive tag reader and writer - Google Patents
Ultrahigh frequency passive tag reader and writer Download PDFInfo
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- CN201993778U CN201993778U CN201120027895XU CN201120027895U CN201993778U CN 201993778 U CN201993778 U CN 201993778U CN 201120027895X U CN201120027895X U CN 201120027895XU CN 201120027895 U CN201120027895 U CN 201120027895U CN 201993778 U CN201993778 U CN 201993778U
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- ultrahigh frequency
- frequency carrier
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Abstract
The utility model relates to an ultrahigh frequency passive tag reader and writer, which comprises an ultrahigh frequency carrier generation/pulse position modulation unit, wherein the signal output end of the ultrahigh frequency carrier generation/pulse position modulation unit is electrically connected with the input end of a phase shift network module through a band-pass filtration module and a power amplification module; the signal output end of the phase shift network module is electrically connected with a transceiving antenna and a demodulation and amplification unit respectively; the signal output end of the demodulation and amplification unit is electrically connected with an input interface of a microcontroller through a comparison and shaping module; the microcontroller is used for performing decoding treatment on signals after comparison and shaping; a control interface of the microcontroller is electrically connected with the input ends of the power amplification module and the ultrahigh frequency carrier generation/pulse position modulation unit; a signal interface of the microcontroller is electrically connected with an interface module; and the ultrahigh frequency carrier generation/pulse position modulation unit comprises an oscillating source, a phase-locked loop module, a voltage controlled oscillator and a modulation module.
Description
Technical field
The utility model relates to the passive label read write line, especially relates to the ultra-high-frequency passive tag read write line.
Background technology
Be made up of modular circuit independently respectively the ultrahigh frequency carrier generator of existing ultra-high-frequency passive tag read write line (as the ISO18000-6 card reader) and the modulator, cost is higher, power consumption is bigger, and it is bigger to take board area simultaneously.
Summary of the invention
The utility model purpose is to provide a kind of ultra-high-frequency passive tag read write line of long-haul reliable read-write.
For achieving the above object, the utility model can be taked following technical proposals:
The utility model comprises ultrahigh frequency carrier wave generation/pulse-position modulation unit, and described ultrahigh frequency carrier wave generation/pulse-position modulation cell signal output terminal is electrically connected with the phase shift network module input through bandpass filtering modules block, power amplifier module; Described phase shift network module by signal output terminal is electrically connected with dual-mode antenna, demodulation amplifying unit respectively; Described demodulation amplifying unit signal output part is electrically connected with the microcontroller input interface through comparing Shaping Module; The signal that described microcontroller will compare after the shaping carries out decoding processing; The control interface of microcontroller is electrically connected with described power amplifier module, ultrahigh frequency carrier wave generation/pulse-position modulation unit input end; Be electrically connected with interface module at the microcontroller signaling interface; Described ultrahigh frequency carrier wave generation/pulse-position modulation unit is made of oscillation source, phase-locked loop module, voltage controlled oscillator, modulation module; Described oscillation source output signal with from described voltage controlled oscillator output signal relatively the back be electrically connected with described phase-locked loop module signal input part; Another road output of voltage controlled oscillator is electrically connected with described modulation module input end; The modulation module output terminal is electrically connected with described bandpass filtering modules block input end as the output signal of ultrahigh frequency carrier wave generation/pulse-position modulation unit.
The utility model advantage is that ultrahigh frequency carrier wave generation/pulse-position modulation unit is set to be made of oscillation source, phase-locked loop module, voltage controlled oscillator, modulation module.Therefore, generation of the ultrahigh frequency carrier wave of this read write line and modulating unit circuit adopt ISM band to be equipped with suitable peripheral components realization with radio-frequency (RF) transmitter Si4432; Simplified ultrahigh frequency carrier wave generation/pulse-position modulation (PIE) element circuit, the PCB area occupied is little simultaneously, and Overall Power Consumption and cost are low, and are easy to miniaturization, make it be more suitable for being applied to the application of low-cost middle distance.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model.
Fig. 2 is the ultrahigh frequency carrier wave generation/pulse-position modulation element circuit schematic diagram of Fig. 1.
Embodiment
As shown in Figure 1, 2, ultra-high-frequency passive tag read write line described in the utility model, it comprises ultrahigh frequency carrier wave generation/pulse-position modulation unit, and the signal output part of described ultrahigh frequency carrier wave generation/pulse-position modulation unit is electrically connected with the phase shift network module input through bandpass filtering modules block, power amplifier module; Described phase shift network module by signal output terminal is electrically connected with dual-mode antenna, demodulation amplifying unit respectively; Described demodulation amplifying unit signal output part is electrically connected with the microcontroller input interface through comparing Shaping Module; The signal that described microcontroller will compare after the shaping carries out decoding processing; The control interface of microcontroller is electrically connected with described power amplifier module, ultrahigh frequency carrier wave generation/pulse-position modulation unit input end; Be electrically connected with interface module at the microcontroller signaling interface; Described ultrahigh frequency carrier wave generation/pulse-position modulation unit is made of oscillation source, phase-locked loop module, voltage controlled oscillator, modulation module; Described oscillation source output signal with from described voltage controlled oscillator output signal relatively the back be electrically connected with described phase-locked loop module signal input part; Another road output of voltage controlled oscillator is electrically connected with described modulation module input end; The modulation module output terminal is electrically connected single radio-frequency (RF) transmitter Si4432 integrated circuit and outside Resistor-Capacitor Unit composition as the output signal of ultrahigh frequency carrier wave generation/pulse-position modulation unit with described bandpass filtering modules block input end, its output is electrically connected with the bandpass filter module input.
Claims (1)
1. ultra-high-frequency passive tag read write line, it comprises ultrahigh frequency carrier wave generation/pulse-position modulation unit, and described ultrahigh frequency carrier wave generation/pulse-position modulation cell signal output terminal is electrically connected with the phase shift network module input through bandpass filtering modules block, power amplifier module; Described phase shift network module by signal output terminal is electrically connected with dual-mode antenna, demodulation amplifying unit respectively; Described demodulation amplifying unit signal output part is electrically connected with the microcontroller input interface through comparing Shaping Module; The signal that described microcontroller will compare after the shaping carries out decoding processing; The control interface of microcontroller is electrically connected with described power amplifier module, ultrahigh frequency carrier wave generation/pulse-position modulation unit input end; Be electrically connected with interface module at the microcontroller signaling interface; It is characterized in that: described ultrahigh frequency carrier wave generation/pulse-position modulation unit is made of oscillation source, phase-locked loop module, voltage controlled oscillator, modulation module; Described oscillation source output signal with from described voltage controlled oscillator output signal relatively the back be electrically connected with described phase-locked loop module signal input part; Another road output of voltage controlled oscillator is electrically connected with described modulation module input end; The modulation module output terminal is electrically connected with described bandpass filtering modules block input end as the output signal of ultrahigh frequency carrier wave generation/pulse-position modulation unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120027895XU CN201993778U (en) | 2011-01-27 | 2011-01-27 | Ultrahigh frequency passive tag reader and writer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120027895XU CN201993778U (en) | 2011-01-27 | 2011-01-27 | Ultrahigh frequency passive tag reader and writer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201993778U true CN201993778U (en) | 2011-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120027895XU Expired - Fee Related CN201993778U (en) | 2011-01-27 | 2011-01-27 | Ultrahigh frequency passive tag reader and writer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201993778U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102622619A (en) * | 2012-01-10 | 2012-08-01 | 上海交通大学 | Safety wireless identification system and authentication method thereof |
| CN107579743A (en) * | 2017-10-13 | 2018-01-12 | 深圳市华士精成科技有限公司 | A kind of ultrahigh frequency radio frequency identification (RFID) reader radiating circuit |
-
2011
- 2011-01-27 CN CN201120027895XU patent/CN201993778U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102622619A (en) * | 2012-01-10 | 2012-08-01 | 上海交通大学 | Safety wireless identification system and authentication method thereof |
| CN107579743A (en) * | 2017-10-13 | 2018-01-12 | 深圳市华士精成科技有限公司 | A kind of ultrahigh frequency radio frequency identification (RFID) reader radiating circuit |
| CN107579743B (en) * | 2017-10-13 | 2023-05-16 | 深圳市华士精成科技有限公司 | Ultrahigh frequency RFID reader-writer transmitting circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: High tech Zone in Henan province Zhengzhou City, Tsui Chuk street 450001 No. 6 863 national software base xinkaipu building Patentee after: NEWCAPEC ELECTRONICS CO., LTD. Address before: High tech Zone in Henan province Zhengzhou City, Tsui Chuk street 450001 No. 6 863 national software base Patentee before: Zhengzhou Brand-New C.A.P. Electronics Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20190127 |