CN101923630A - Two-way communication protective method and system of object - Google Patents
Two-way communication protective method and system of object Download PDFInfo
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- CN101923630A CN101923630A CN2010102731770A CN201010273177A CN101923630A CN 101923630 A CN101923630 A CN 101923630A CN 2010102731770 A CN2010102731770 A CN 2010102731770A CN 201010273177 A CN201010273177 A CN 201010273177A CN 101923630 A CN101923630 A CN 101923630A
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Abstract
The invention provides a two-way communication protective method and system of an object. In the method, a two-way communication object protective system is provided and is provided with a plurality of electronic tags capable of being connected on the protected object, and each electronic tag is provided with a first controller unit, a low frequency wireless receiving unit, a high frequency wireless transmitting unit, a sensor unit and a first power manage unit. In the invention, the electronic tags do not transmit high frequency wireless signals and are always in a low power consumption dormant state under the conditions that the electronic tags do not move to a signal exciter effective region and the electronic tags are not damaged; and once moving to the position around the signal exciter, the electronic tags are triggered by low frequency signals with effective strength so as to be triggered and transmit the high frequency signals. The invention has the application advantages of both the high frequency signals and the low frequency signals, and starts an audible and visual alarm to enable the electronic tags to be capable of realizing effective object protection with low power consumption via the electronic tags and/or the signal exciter.
Description
Technical field
The present invention relates to the guard method and the protection system of article, relate in particular to and a kind ofly wake the guard method and the system of the bi-directional transfer of data that electronic tag, high-frequency signal reply up, be used to valuable asset protection and supermarket, the protection of sales field commodity with low frequency signal.
Background technology
Traditional electronic tag protective device has only used the label folk prescription to transmitting to controller, and controller is according to having or not the signal of label to judge whether article exist, and judges whether safety of article.The problem that this technology exists is that label must regularly be launched high-frequency signal, and during the emission wireless signal, electric current is big, and battery capacity is limited, and the label life-span is just short.
The electronic tag of traditional article protection adopts high frequency technique, and long transmission distance is unfavorable for that on-the-spot discovery article are removed.
The electronic tag of article protection adopts the low-frequency technology both-way communication, and electronic tag loads battery capacity has the distance of emission in limited time to have only several centimetres, does not have practical use.
Summary of the invention
The present invention's technical matters at first to be solved provides a kind of article protection method of both-way communication, can either effectively protect article that electronic tag can be used for a long time.For this reason, the present invention is by the following technical solutions: described method provides the article protection system of both-way communication, and described system is provided with:
A plurality of electronic tags that are connected on the protected article, described electronic tag are provided with first controller unit, low frequency radio receiving unit, high frequency wireless transmitting unit, sensor unit, first Power Management Unit;
Be used to wake up one or more signal excitation devices of electronic tag, described signal excitation device is provided with second controller unit, low frequency wireless transmitting unit, high frequency radio receiving unit, second source administrative unit;
Electronic tag and/or signal excitation device are provided with alarm unit;
Described second controller unit control low frequency wireless transmitting unit timed sending low frequency interrogating signal triggers the described electronic tag that enters low frequency interrogating signal effective coverage;
Duty after described electronic tag powers on has park mode and normal protected mode;
Described electronic tag is after its low frequency radio receiving unit receives the low frequency interrogating signal, be triggered and change normal protected mode over to, the identity and the status information of electronic tag are issued the signal excitation device in the mode of high-frequency signal by the high frequency wireless transmitting unit from park mode;
The signal excitation device receives the high-frequency signal that electronic tag is launched by the high frequency radio receiving unit, according to identity and the status information that the electronic tag that receives is launched by high-frequency signal, need to judge whether to report to the police.
On the basis of adopting technique scheme, the present invention also can adopt following further technical scheme simultaneously:
First controller unit of electronic tag by regularly sensor unit being detected regularly to the state self check of electronic tag; and need to judge whether to report to the police, electronic tag sends to the signal excitation device with described status information when electronic tag changes normal protected mode over to.
Described low frequency wireless transmitting unit is by the signal modulation process circuit, and electric capacity, inductance series resonance radiating circuit are formed.
The low frequency radio receiving unit can adopt the resonant circuit by detection level X-axis signal, the resonant circuit of detection of vertical Y-axis signal, any two kinds or the resonant circuit and the low frequency wireless signal testing circuit that all combine that detect in the resonant circuit of space Z axis signal are formed; The resonant circuit of the resonant circuit of the resonant circuit of detection level X-axis signal, detection of vertical Y-axis signal, detection space Z axis signal composes in parallel by inductance and electric capacity.
Described low frequency signal frequency range can be one or more combination in any among 51KHz～58KHz, the 125KHz～135KHz; Described high-frequency signal frequency is one or more combination in any among 2MHz～14MHz, 315MHz～320MHz, 415M～455MHz, 800MHz～950MHz, the 2.3GHz～2.6GHz.
Another technical matters to be solved of the present invention provides the article protection system of the both-way communication of realizing above-mentioned article protection method.For this reason, the present invention is by the following technical solutions: described system is provided with:
A plurality of electronic tags that are used to be connected on the protected article, described electronic tag is provided with first controller unit, low frequency radio receiving unit, high frequency wireless transmitting unit, sensor unit, first Power Management Unit;
Be used to wake up one or more signal excitation devices of electronic tag, described signal excitation device is provided with second controller unit, low frequency wireless transmitting unit, high frequency radio receiving unit, second source administrative unit;
Electronic tag and/or signal excitation device are provided with alarm unit.
Owing to adopt technical scheme of the present invention, electronic tag is not when moving to signal excitation device effective coverage and electronic tag during not by unauthorised broken, do not launch the wireless signal of high frequency, all the time allow electronic tag be in the dormant state of low-power consumption, in case when moving on near the signal excitation device, electronic tag is triggered by the low frequency signal of active strength, starts the emission high-frequency signal; Although what the signal excitation device received is high-frequency signal; but high-frequency signal is only launched in the effective coverage of low frequency signal; had the application advantage of high-frequency signal and low frequency signal concurrently, started sound and light alarm by electronic tag and/or signal excitation device and make electronic tag can realize effectively protecting with low power article.
Description of drawings
Fig. 1 is that the signal of article protection device of the present invention moves towards synoptic diagram.
Fig. 2 a is the theory diagram of a kind of embodiment of light alarm unit.
Fig. 2 b is the theory diagram of the another kind of embodiment of light alarm unit.
Fig. 2 c is the theory diagram of a kind of embodiment of audible alarm unit.
Fig. 2 d is the theory diagram of the another kind of embodiment of audible alarm unit.
Fig. 3 is the theory diagram of signal excitation device embodiment of the present invention.
Fig. 4 is the theory diagram of low frequency wireless transmitting unit embodiment of the present invention.
Fig. 5 is the theory diagram of the embodiment of electronic tag of the present invention.
Fig. 6 a-1 is the theory diagram of a kind of embodiment of low frequency radio receiving unit of the present invention.
Fig. 6 a-2 is the theory diagram of a kind of embodiment of low frequency radio receiving unit of the present invention.
Fig. 6 a-3 is the theory diagram of a kind of embodiment of low frequency radio receiving unit of the present invention.
Fig. 6 b is the theory diagram of the another kind of embodiment of low frequency radio receiving unit of the present invention.
Embodiment
The article protection method of both-way communication provided by the present invention, described method provide the article protection system of both-way communication, and with reference to Fig. 1, described system is provided with:
A plurality of electronic tags that are connected on the protected article, described electronic tag are provided with first controller unit, low frequency radio receiving unit 11, high frequency wireless transmitting unit 12, sensor unit, first Power Management Unit;
Be used to wake up one or more signal excitation devices of electronic tag, described signal excitation device is provided with second controller unit, low frequency wireless transmitting unit 21, high frequency radio receiving unit 22, second source administrative unit;
The direction of arrow among Fig. 1 is sense.
Electronic tag and/or signal excitation device are provided with alarm unit;
Described second controller unit control low frequency wireless transmitting unit timed sending low frequency interrogating signal triggers the described electronic tag that enters low frequency interrogating signal effective coverage;
Duty after described electronic tag powers on has park mode and normal protected mode;
Described electronic tag is after its low frequency radio receiving unit receives the low frequency interrogating signal, be triggered and change normal protected mode over to, the identity and the status information of electronic tag are issued the signal excitation device in the mode of high-frequency signal by the high frequency wireless transmitting unit from park mode;
The signal excitation device receives the high-frequency signal that electronic tag is launched by the high frequency radio receiving unit, according to identity and the status information that the electronic tag that receives is launched by high-frequency signal, need to judge whether to report to the police.
The alarm unit that present embodiment is taked is a kind of of optical alarm circuit and sound warning circuit or several combination.
With reference to figure 2a, optical alarm circuit adopts optical flare to report to the police, and optical alarm circuit is made up of the driving circuit of light emitting diode and diode, and the driving circuit of diode can be the logic gate driving circuit.
With reference to Fig. 2 b, the driving circuit of the diode in the optical alarm circuit can be that microprocessor unit directly drives.
With reference to figure 2c, the audible alarm circuit is made up of buzzer drive circuit 100 and hummer 200, and the driving circuit of the hummer of present embodiment can be the oscillation boosting driving circuit.
With reference to figure 2d, the driving circuit of the hummer in the audible alarm circuit also can directly be driven by the PWM (pulse width is adjustable) of first or second controller unit.
With reference to Fig. 3, described signal excitation device is provided with second controller unit, low frequency wireless transmitting unit, high frequency radio receiving unit, second source administrative unit; Described signal excitation device also can be provided with alarm unit.Second controller unit can adopt single-chip microcomputer and peripheral circuit thereof, and single-chip microcomputer can adopt single-chip microcomputer PIC16F883.
The high frequency radio receiving unit is by the wireless radiofrequency integrated circuit, impedance matching circuit, antenna is formed, its wireless radiofrequency integrated circuit is an integrated chip, its integrated chip inside is by the filtering of signal, demodulation, amplifying circuit is formed, it is 50 ohm that impedance matching circuit makes the input of radio frequency integrated circuit and the impedance between the antenna, antenna is omnidirectional or directional antenna, major function is exactly to be at ordinary times to intercept wireless signal, meet this frequency band signals in case have, just open the wireless radiofrequency integrated circuit and receive data, the wireless radiofrequency integrated circuit is reduced into digital signal with wireless signal and gives second control module.Described frequency range is the high-frequency signal frequency range, and frequency is one or more combination in any among 2MHz～14MHz, 315MHz～320MHz, 415M～455MHz, 800MHz～950MHz, the 2.3GHz～2.6GHz.
With reference to Fig. 4, described low frequency wireless transmitting unit Y2 is made up of signal modulation process circuit Y21 and the resonance radiating circuit Y22 that is made of the series connection of electric capacity, inductance.The low frequency signal frequency range can be one or more combination in any among 51KHz～58KHz, the 125KHz～135KHz.
The signal excitation device powers on by the second source administrative unit, and the coded data that the timed sending of second control module control low frequency wireless transmitting unit has own identity code arrives in the air each certain time.This low frequency wireless signal produces the modulated carrier signal that continues by the second controller timer internal, and for example producing with 20 microseconds is that high level, 20 microseconds are low level modulated carrier signal; Drive the described resonant circuit of inductance, capacitances in series composition, produce high-voltage signal, be transmitted in the air, continue for example 100 milliseconds by telefault.Stop then, start the high frequency radio receiving unit, intercept the high-frequency signal that the electronic tag of having no way of is sent, just do not change the low frequency wireless transmitting unit over to, repeat to send the coded data of carrying own identity code and arrive aerial if having, if the information that has electronic tag to send, after the decoding of high frequency radio receiving unit, if the illegal electronic tag that moves starts sound or light alarm unit and reports to the police, if the information that receives is that electronic tag is ruined, starts sound or light alarm unit and report to the police.The type of alarm difference of above-mentioned 2 kinds of need alarm condition, to be example with audible alarm all, decoded information is that alarm sound is rapid when arriving the label that illegally moves, and such as ringing 1 second, stops 1 second, carries out continuously 10 seconds; Decoded information is for, ringing continuously when destroyed to electronic tag.
With reference to Fig. 5, described electronic tag is provided with first controller unit, low frequency radio receiving unit, high frequency wireless transmitting unit, sensor unit, first Power Management Unit; Described electronic tag also can be provided with alarm unit.The frequency range of described high and low frequency is identical with the signal excitation device.First controller unit can adopt single-chip microcomputer and peripheral circuit thereof, and described single-chip microcomputer can adopt low-power scm MSP430F2011.Sensor unit can be switch or lead and shaping output circuit to be formed, and also can be voltage sensor and the shaping that detects cell voltage, and output circuit is formed, and first Power Management Unit can be made up of low pressure reduction power supply chip.
With reference to Fig. 6 b, the low frequency radio receiving unit can adopt: by the resonant circuit of detection level X-axis signal, the resonant circuit of detection of vertical Y-axis signal, resonant circuit K21 and low frequency wireless signal testing circuit that the resonant circuit of detection space Z axis signal combines are formed, the resonant circuit K211 of detection level X-axis signal is that inductance K2110 and electric capacity K2111 compose in parallel, the resonant circuit K212 of detection of vertical Y-axis signal is that inductance K2120 and electric capacity K2121 compose in parallel, and the resonant circuit K213 that detects space Z axis signal is that inductance K2130 and electric capacity K2131 compose in parallel.
With reference to Fig. 6 a-1,6a-2,6a-3, the low frequency radio receiving unit also can adopt: by the resonant circuit of detection level X-axis signal, the resonant circuit of detection of vertical Y-axis signal, resonant circuit K21 and low frequency wireless signal testing circuit that wantonly 2 directions in the resonant circuit of detection space Z axis signal combine become, the resonant circuit K211 of detection level X-axis signal is that inductance K2110 and electric capacity K2111 compose in parallel, the resonant circuit K212 of detection of vertical Y-axis signal is that inductance K2120 and electric capacity K2121 compose in parallel, and the resonant circuit K213 that detects space Z axis signal is that inductance K2130 and electric capacity K2131 compose in parallel.
Described inductance adopts the coiling air core coil, also can be the wire-wound inductor that adopts magnetic core.
Alarm unit can adopt a kind of in the mode shown in Fig. 2 a to Fig. 2 d.
The high-frequency emission unit is made up of less radio-frequency integrated circuit and impedance matching circuit, antenna, the less radio-frequency integrated circuit is an integrated chip, its inside of integrated chip includes signal encoding, modulation, amplifying circuit and for to make the input impedance of antenna reach 50 ohm impedance matching circuit.Antenna is a base band antenna of directly using wiring board.The say the word less radio-frequency integrated circuit of high-frequency emission unit of first control module just can send to the coded signal of the status information of electronic tag in the air.
After electronic tag powers on, sensor unit generation switch motion, first controller unit detects the status signal of this sensor unit, make label enter duty automatically, at this moment, do not receive the low frequency signal that the signal excitation device sends as the low frequency radio receiving unit, electronic tag is in the park mode of low-power consumption.
The extremely normal protected mode of first controller unit of electronic tag timing wake-up when the low-power consumption park mode; the signal of detection sensor unit output; the sensor of sensor unit is switch or lead and shaping output circuit composition; also can be voltage sensor and the shaping that detects cell voltage; output circuit is formed; its output signal is a digital signal; for high or be low; its state variation be exactly level from high to low or variation from low to high; first controller unit just changes article whether safety or the low-voltage not judge the label protection according to level; if label is destroyed or electric weight is not enough or moved by illegal for the guard mode electronic tag; just start by sound or light alarm unit and report to the police; the status information of electronic tag is when electronic tag is in normal protected mode simultaneously; issue the signal excitation device by the high-frequency emission unit; if all are normal for label, during the signal of no signal driver, label enters low power consumpting state again.
In case electronic tag moves near the signal excitation device; the inductance of low frequency radio receiving unit; the electric capacity antiresonant circuit is coupled to the low frequency signal that the signal excitation device sends; if the low frequency signal intensity that receives surpasses the threshold values that first controller unit is set in advance; just withdraw from park mode; enter the normal protected mode of high-speed cruising; first controller unit is issued the signal excitation device with the identity coding information of electronic tag by the high-frequency emission unit, and second controller unit judges whether the identity information of electronic tag belongs to the scope that this signal excitation device signal covers and judge whether to report to the police.
Claims (9)
1. the two-way communication protective method of article is characterized in that described method provides the article protection system of both-way communication, and described system is provided with:
A plurality of electronic tags that are connected on the protected article, described electronic tag are provided with first controller unit, low frequency radio receiving unit, high frequency wireless transmitting unit, sensor unit, first Power Management Unit;
Be used to wake up one or more signal excitation devices of electronic tag, described signal excitation device is provided with second controller unit, low frequency wireless transmitting unit, high frequency radio receiving unit, second source administrative unit;
Electronic tag and/or signal excitation device are provided with alarm unit;
Described second controller unit control low frequency wireless transmitting unit timed sending low frequency interrogating signal triggers the described electronic tag that enters in the low frequency interrogating signal effective coverage;
Duty after described electronic tag powers on has park mode and normal protected mode;
Described electronic tag is after its low frequency radio receiving unit receives the low frequency interrogating signal, be triggered and change normal protected mode over to, the identity and the status information of electronic tag are issued the signal excitation device in the mode of high-frequency signal by the high frequency wireless transmitting unit from park mode;
The signal excitation device receives the high-frequency signal that electronic tag is launched by the high frequency radio receiving unit, according to identity and the status information that the electronic tag that receives is launched by high-frequency signal, need to judge whether to report to the police.
2. the two-way communication protective method of article as claimed in claim 1; first controller unit that it is characterized in that electronic tag by regularly sensor unit being detected regularly to the state self check of electronic tag; and need to judge whether to report to the police, electronic tag sends to the signal excitation device with described status information when electronic tag changes normal protected mode over to.
3. the two-way communication protective method of article as claimed in claim 1 is characterized in that described low frequency wireless transmitting unit by the signal modulation process circuit, and electric capacity, inductance series resonance radiating circuit are formed.
4. the two-way communication protective method of article as claimed in claim 1, it is characterized in that the low frequency radio receiving unit can adopt the resonant circuit by detection level X-axis signal, the resonant circuit of detection of vertical Y-axis signal, any two kinds or the resonant circuit and the low frequency wireless signal testing circuit that all combine that detect in the resonant circuit of space Z axis signal are formed; The resonant circuit of the resonant circuit of the resonant circuit of detection level X-axis signal, detection of vertical Y-axis signal, detection space Z axis signal composes in parallel by inductance and electric capacity.
5. the two-way communication protective method of article as claimed in claim 1 is characterized in that described low frequency signal frequency range can be one or more combination in any among 51KHz～58KHz, the 125KHz～135KHz; Described high-frequency signal frequency is one or more combination in any among 2MHz～14MHz, 315MHz～320MHz, 415M～455MHz, 800MHz～950MHz, the 2.3GHz～2.6GHz.
6. the article protection system of a both-way communication is characterized in that described system is provided with:
A plurality of electronic tags that are used to be connected on the protected article, described electronic tag is provided with first controller unit, low frequency radio receiving unit, high frequency wireless transmitting unit, sensor unit, first Power Management Unit;
Be used to wake up one or more signal excitation devices of electronic tag, described signal excitation device is provided with second controller unit, low frequency wireless transmitting unit, high frequency radio receiving unit, second source administrative unit;
Electronic tag and/or signal excitation device are provided with alarm unit.
7. as the article protection system of both-way communication as described in the claim 6, it is characterized in that described low frequency wireless transmitting unit forms by the signal modulation process circuit with by the resonance radiating circuit that electric capacity, inductance series connection constitute.
8. the article protection system of both-way communication as claimed in claim 6, it is characterized in that the low frequency radio receiving unit can adopt the resonant circuit by detection level X-axis signal, the resonant circuit of detection of vertical Y-axis signal, any two kinds or the resonant circuit and the low frequency wireless signal testing circuit that all combine that detect in the resonant circuit of space Z axis signal are formed; The resonant circuit of the resonant circuit of the resonant circuit of detection level X-axis signal, detection of vertical Y-axis signal, detection space Z axis signal composes in parallel by inductance and electric capacity.
9. the article protection system of both-way communication as claimed in claim 6 is characterized in that described low frequency signal frequency range can be one or more combination in any among 51KHz～58KHz, the 125KHz～135KHz; Described high-frequency signal frequency is one or more combination in any among 2MHz～14MHz, 315MHz～320MHz, 415M～455MHz, 800MHz～950MHz, the 2.3GHz～2.6GHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010102731770A CN101923630A (en) | 2010-09-07 | 2010-09-07 | Two-way communication protective method and system of object |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102731770A CN101923630A (en) | 2010-09-07 | 2010-09-07 | Two-way communication protective method and system of object |
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| CN101923630A true CN101923630A (en) | 2010-12-22 |
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| CN2010102731770A Pending CN101923630A (en) | 2010-09-07 | 2010-09-07 | Two-way communication protective method and system of object |
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| CN102184445A (en) * | 2011-05-12 | 2011-09-14 | 广州天绎智能科技有限公司 | Electronic tag awakening method and electronic tag |
| WO2012094826A1 (en) * | 2011-01-14 | 2012-07-19 | 海尔集团公司 | Wireless power supplying system and control method thereof |
| CN102612122A (en) * | 2012-02-24 | 2012-07-25 | 苏州博联科技有限公司 | Low-power-consumption wireless sensor network system and controlling and awaking method thereof |
| CN103164730A (en) * | 2011-12-09 | 2013-06-19 | 苏州木兰电子科技有限公司 | Dual-frequency radio frequency electronic tag |
| CN103777174A (en) * | 2014-01-10 | 2014-05-07 | 四川飞通系统集成有限公司 | Indoor positioning system based on active multifunctional RFID tags |
| CN104063036A (en) * | 2013-03-20 | 2014-09-24 | 西门子公司 | Control method and system for scanning guns |
| CN105809872A (en) * | 2016-06-03 | 2016-07-27 | 武汉大学 | Low-power-consumption restorable anti-theft system and low-power-consumption restorable anti-theft method based on 2.4GHz wireless radio frequency chip |
| WO2016138875A1 (en) * | 2015-03-04 | 2016-09-09 | 上海鸿研物流技术有限公司 | Method for maintaining recyclable logistics instrument and system thereof |
| CN106228223A (en) * | 2016-08-24 | 2016-12-14 | 杭州升腾智能科技股份有限公司 | A kind of low-power consumption exciting circuit and excitation set |
| CN108445373A (en) * | 2018-03-13 | 2018-08-24 | 华中科技大学 | A kind of the function self-sensing method and system of Bluetooth label |
| CN110912790A (en) * | 2018-09-18 | 2020-03-24 | 奥特润株式会社 | IC communication device and IC ID automatic communication method |
| TWI722457B (en) * | 2019-06-21 | 2021-03-21 | 星河半導體股份有限公司 | Resonance driven control circuit, method and electronic system |
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| CN108445373A (en) * | 2018-03-13 | 2018-08-24 | 华中科技大学 | A kind of the function self-sensing method and system of Bluetooth label |
| CN110912790A (en) * | 2018-09-18 | 2020-03-24 | 奥特润株式会社 | IC communication device and IC ID automatic communication method |
| CN110912790B (en) * | 2018-09-18 | 2021-11-16 | 现代摩比斯株式会社 | IC communication device and IC ID automatic communication method |
| TWI722457B (en) * | 2019-06-21 | 2021-03-21 | 星河半導體股份有限公司 | Resonance driven control circuit, method and electronic system |
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Application publication date: 20101222 |