CN203299859U - Handheld RFID reader-writer - Google Patents
Handheld RFID reader-writer Download PDFInfo
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- CN203299859U CN203299859U CN2013203508011U CN201320350801U CN203299859U CN 203299859 U CN203299859 U CN 203299859U CN 2013203508011 U CN2013203508011 U CN 2013203508011U CN 201320350801 U CN201320350801 U CN 201320350801U CN 203299859 U CN203299859 U CN 203299859U
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Abstract
The utility model discloses a handheld RFID reader-writer. The handheld RFID reader-writer includes an MCU, an RF transmitting/receiving device, a power source management device, a USB interface, a Bluetooth module, an LED, an antenna and a buzzer, wherein the MCU is connected with the RF transmitting/receiving device, the power source management device, the buzzer, the USB interface, the Bluetooth module and the LED respectively, and the antenna is connected with the RF transmitting/receiving device. The handheld RFID reader-writer of the utility model is small in volume and flexible in use, and is provided with a lithium battery, and can be either used as a general desktop reader-writer or a handheld reader-writer; and the handheld RFID reader-writer can be connected with a PC, a smart phone and a tablet computer through the USB or Bluetooth interface, such that the handheld RFID reader-writer can be combined with the smart phone and the tablet computer so as to be used, and therefore, functions such as communication/GPS /photographing/ text input /large-screen display functions of the smart phone and the tablet computer can be fully utilized, and as a result, the application occasions of the reader-writer can be increased greatly, and the application range of the reader-write can be expanded greatly.
Description
Technical field
The utility model relates to a kind of radio frequency identification equipment, relate in particular to a kind of can same smart mobile phone, the equipment such as panel computer carries out the hand-held RFID read-write device of radio communication.
Background technology
The RFID technology is REID, is an automatic identification technology that grows up from the eighties in 20th century, is the concrete utilization of radiotelegraphy in the automatic identification field application.The RFID technology is to utilize wireless radio frequency mode to carry out the noncontact two-way communication, automatically identifies destination object and obtains the wireless communication technology of relevant information data.Be different from traditional magnetic card and IC-card, the RFID technology has solved passive and contact-free two large problems, it can realize moving target identification, multiple goal identification simultaneously, the distance of identification can reach tens centimetres to several meters, has high confidentiality, identification work need not manual intervention, can work in various rugged surroundings, can be widely used in all kinds of occasions.
Rfid interrogator can be divided into two kinds of fixed type reader-writer and hand-held read-writes, hand-held read-write is compared fixed type reader-writer and is had the advantages such as small and exquisite, easy to carry, that use is flexible, by increasing client, used, but existing hand-held RFID read-write device is expensive, the normal handheld device of using of people such as mobile phone, camera etc. slightly show heaviness and are inconvenient to carry relatively, are unfavorable for extensive and many occasions uses.
The utility model content
The purpose of this utility model with regard to be to provide in order to address the above problem a kind of can same smart mobile phone, the equipment such as panel computer carries out the hand-held RFID read-write device of radio communication.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises MCU, radio-frequency (RF) receiving/transmission device, electric power controller, USB interface, bluetooth module, LED, antenna and hummer, described MCU is connected with described radio-frequency (RF) receiving/transmission device, described electric power controller, described hummer, described USB interface, described bluetooth module and described LED respectively, and described antenna is connected with described radio-frequency (RF) receiving/transmission device.
electric power controller described in the utility model comprises the power switching circuit, power switch, LDO1, LDO2, lithium battery and electric quantity monitoring device, the power output end of described USB interface is connected with the first power input of described power switching circuit and the power input of described lithium battery respectively, the power output end of described lithium battery is connected with the second source input end of described power switching circuit, the electric quantity monitoring end of described lithium battery is connected with the electric quantity monitoring end of described electric quantity monitoring device, the control input end of described electric quantity monitoring device is connected with the control output end of described MCU, the power output end of described power switching circuit is connected with the input end of described power switch, the output terminal of described power switch is connected with the power input of described LDO2 and is connected respectively with the input end of described LDO1, the control input end of described LDO2 is connected with the switch controlling signal output terminal of described MCU, the power output end of described LDO1 is connected with the power input of described MCU and the power input of described bluetooth module respectively, the signal end of described bluetooth module is connected with the Bluetooth signal end of described MCU, the radio-frequency (RF) control signal output terminal of described MCU is connected with the control signal input end of described radio-frequency (RF) receiving/transmission device, the power output end of described LDO2 is connected with the power input of described radio-frequency (RF) receiving/transmission device and the power input of described hummer respectively, the alarm signal output ends of described MCU is connected with the signal input part of described hummer.
radio-frequency (RF) receiving/transmission device described in the utility model comprises crystal oscillator, signal modulator, power amplification circuit, the first wave filter, the second wave filter and demodulation circuit, the signal output part of described crystal oscillator is connected with the first signal input end of described signal modulator and the crystal oscillator signal input part of described MCU respectively, the signal output part of described signal modulator is connected with the signal input part of described power amplification circuit, the signal output part of described power amplification circuit is connected with the signal input part of described the first filtering circuit, described antenna is connected with the signal input part of described the second filtering circuit with the signal output of described the first filtering circuit respectively, the signal output part of described the second filtering circuit is connected with the signal input part of described demodulation circuit, described demodulation circuit signal output part with the signal input part of described MCU, be connected, the control signal output terminal of described MCU is connected with the control signal input end of described signal modulator.
The beneficial effects of the utility model are:
The utility model read write line volume is little, uses flexibly, carries lithium battery, both can be used as general desktop type read write line, also can be used as hand-held read-write.Can pass through USB or blue tooth interface, connect the equipment such as PC, smart mobile phone, panel computer, can be combined with smart mobile phone, panel computer, take full advantage of the communication that smart mobile phone closes panel computer/functions such as GPS/ photograph/word input/large-size screen monitors demonstration, greatly expand application scenario and the scope of read write line.
The accompanying drawing explanation
Fig. 1 is the general structure theory diagram of hand-held RFID read-write device described in the utility model;
Fig. 2 is the structural principle block diagram of the electric power controller described in Fig. 1;
Fig. 3 is the structural principle block diagram of the radio-frequency (RF) receiving/transmission device described in Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1: the utility model comprises MCU, radio-frequency (RF) receiving/transmission device, electric power controller, USB interface, bluetooth module, LED, antenna and hummer, described MCU is connected with described radio-frequency (RF) receiving/transmission device, described electric power controller, described hummer, described USB interface, described bluetooth module and described LED respectively, and described antenna is connected with described radio-frequency (RF) receiving/transmission device.MCU is the central microprocessor chip, as the core of hand-held RFID read-write device, connects and controls other each several part modules, realizes the functions such as communication, coding and decoding, hummer, LED control and power management.The utility model provides bluetooth module and USB interface, and the user can select the equipment such as bluetooth or the same PC of USB, smart mobile phone, panel computer to communicate.LED is for pointing out the reading and writing card, bluetooth connection status, the duty of charged state and other settings.
as shown in Figure 2: electric power controller described in the utility model comprises the power switching circuit, power switch, LDO1(the first low pressure difference linear voltage regulator), LDO2(the second low pressure difference linear voltage regulator), lithium battery and electric quantity monitoring device, the power output end of described USB interface is connected with the first power input of described power switching circuit and the power input of described lithium battery respectively, the power output end of described lithium battery is connected with the second source input end of described power switching circuit, the electric quantity monitoring end of described lithium battery is connected with the electric quantity monitoring end of described electric quantity monitoring device, the control input end of described electric quantity monitoring device is connected with the control output end of described MCU, the power output end of described power switching circuit is connected with the input end of described power switch, the output terminal of described power switch is connected with the power input of described LDO2 and is connected respectively with the input end of described LDO1, the control input end of described LDO2 is connected with the switch controlling signal output terminal of described MCU, the power output end of described LDO1 is connected with the power input of described MCU and the power input of described bluetooth module respectively, the data terminal of described bluetooth module is connected with the data terminal of described MCU, the radio-frequency (RF) control signal output terminal of described MCU is connected with the control signal input end of described radio-frequency (RF) receiving/transmission device, the power output end of described LDO2 is connected with the power input of described radio-frequency (RF) receiving/transmission device and the power input of described hummer respectively, the alarm signal output ends of described MCU is connected with the signal input part of described hummer.Power management module provides the power management of the energy of the present utility model and each module.Required power supply when lithium battery can provide work, but administrative unit unified management charging and discharging lithium battery, electric weight detect and the charge prompting function.
as shown in Figure 3: radio-frequency (RF) receiving/transmission device described in the utility model comprises crystal oscillator, signal modulator, power amplification circuit, the first wave filter, the second wave filter and demodulation circuit, the signal output part of described crystal oscillator is connected with the first signal input end of described signal modulator and the crystal oscillator signal input part of described MCU respectively, the signal output part of described signal modulator is connected with the signal input part of described power amplification circuit, the signal output part of described power amplification circuit is connected with the signal input part of described the first filtering circuit, described antenna is connected with the signal input part of described the second filtering circuit with the signal output of described the first filtering circuit respectively, the signal output part of described the second filtering circuit is connected with the signal input part of described demodulation circuit, described demodulation circuit signal output part with the signal input part of described MCU, be connected, the control signal output terminal of described MCU is connected with the control signal input end of described signal modulator.Radio-frequency (RF) receiving and transmission module, as the carrier of carrier wave and coded message, sends modulation intelligence, receives the information that label returns.
Claims (3)
1. hand-held RFID read-write device, it is characterized in that: comprise MCU, radio-frequency (RF) receiving/transmission device, electric power controller, USB interface, bluetooth module, LED, antenna and hummer, described MCU is connected with described radio-frequency (RF) receiving/transmission device, described electric power controller, described hummer, described USB interface, described bluetooth module and described LED respectively, and described antenna is connected with described radio-frequency (RF) receiving/transmission device.
2. hand-held RFID read-write device according to claim 1, it is characterized in that: described electric power controller comprises the power switching circuit, power switch, LDO1, LDO2, lithium battery and electric quantity monitoring device, the power output end of described USB interface is connected with the first power input of described power switching circuit and the power input of described lithium battery respectively, the power output end of described lithium battery is connected with the second source input end of described power switching circuit, the electric quantity monitoring end of described lithium battery is connected with the electric quantity monitoring end of described electric quantity monitoring device, the control input end of described electric quantity monitoring device is connected with the control output end of described MCU, the power output end of described power switching circuit is connected with the input end of described power switch, the output terminal of described power switch is connected with the power input of described LDO2 and is connected respectively with the input end of described LDO1, the control input end of described LDO2 is connected with the switch controlling signal output terminal of described MCU, the power output end of described LDO1 is connected with the power input of described MCU and the power input of described bluetooth module respectively, the signal end of described bluetooth module is connected with the Bluetooth signal end of described MCU, the radio-frequency (RF) control signal output terminal of described MCU is connected with the control signal input end of described radio-frequency (RF) receiving/transmission device, the power output end of described LDO2 is connected with the power input of described radio-frequency (RF) receiving/transmission device and the power input of described hummer respectively, the alarm signal output ends of described MCU is connected with the signal input part of described hummer.
3. hand-held RFID read-write device according to claim 1, it is characterized in that: described radio-frequency (RF) receiving/transmission device comprises crystal oscillator, signal modulator, power amplification circuit, the first wave filter, the second wave filter and demodulation circuit, the signal output part of described crystal oscillator is connected with the first signal input end of described signal modulator and the crystal oscillator signal input part of described MCU respectively, the signal output part of described signal modulator is connected with the signal input part of described power amplification circuit, the signal output part of described power amplification circuit is connected with the signal input part of described the first filtering circuit, described antenna is connected with the signal input part of described the second filtering circuit with the signal output of described the first filtering circuit respectively, the signal output part of described the second filtering circuit is connected with the signal input part of described demodulation circuit, described demodulation circuit signal output part with the signal input part of described MCU, be connected, the control signal output terminal of described MCU is connected with the control signal input end of described signal modulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203508011U CN203299859U (en) | 2013-06-19 | 2013-06-19 | Handheld RFID reader-writer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203508011U CN203299859U (en) | 2013-06-19 | 2013-06-19 | Handheld RFID reader-writer |
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| CN203299859U true CN203299859U (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203508011U Expired - Fee Related CN203299859U (en) | 2013-06-19 | 2013-06-19 | Handheld RFID reader-writer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713126A (en) * | 2013-12-12 | 2015-06-17 | 罗震威 | Bluetooth electronic cigarette lighter and use method thereof |
| CN107301520A (en) * | 2017-06-26 | 2017-10-27 | 西安科技大学 | A kind of Logistics Transportation Management System |
-
2013
- 2013-06-19 CN CN2013203508011U patent/CN203299859U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713126A (en) * | 2013-12-12 | 2015-06-17 | 罗震威 | Bluetooth electronic cigarette lighter and use method thereof |
| CN107301520A (en) * | 2017-06-26 | 2017-10-27 | 西安科技大学 | A kind of Logistics Transportation Management System |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20140619 |
|
| EXPY | Termination of patent right or utility model |