CN102747869B - Electron key - Google Patents
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- CN102747869B CN102747869B CN201210261464.9A CN201210261464A CN102747869B CN 102747869 B CN102747869 B CN 102747869B CN 201210261464 A CN201210261464 A CN 201210261464A CN 102747869 B CN102747869 B CN 102747869B
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- 238000004891 communication Methods 0.000 abstract description 25
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- 238000005516 engineering process Methods 0.000 description 3
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- 150000003839 salts Chemical class 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000013524 data verification Methods 0.000 description 2
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- 230000002457 bidirectional effect Effects 0.000 description 1
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Abstract
The present invention relates to electron key, comprise circuit control unit and conciliate lock unit, there is the display unit, push-button unit, memory cell and the PMU that are connected with microprocessor respectively in circuit control unit, coil output unit carries out input by signal receiving unit and described microprocessor and is connected, microprocessor carries out output by power amplifier unit with described coil output unit and is connected, and has the transmitting coil for transmitting in described coil output unit.Electron key of the present invention, have employed transmitting coil to launch communication data and to power to lock body, key bit does not contact with lock body, thus avoid and produces various drawback because of the two contact.Simultaneously by the setting to electron key, an electron key is enable to authorize multiple lock bodies of specifying or shield.And effectively can prevent switch latch release shaft by force from carrying out the illegal unblock behavior such as unblank by anti-dial spring and dependency structure, play good anti-theft function.
Description
Technical field
The present invention relates to electron key.
Background technology
The mode that traditional many lockset management adopt at present has: manage (a corresponding lock of key) and one-to-many management (key corresponding many locks, i.e. so-called " opening up lock ") one to one.Manage one to one and need administrative staff to carry many keys when managing the many situation of lockset quantity, therefore we usually can see administrative staff hold at least more than ten the key chain of handle up to a hundred at most, use and manage all very inconvenient.Conveniently managed afterwards, employed again one-to-many management (opening up lock).Key is used for managing many lockset, and the problem brought is because a key can drive a lot of lock, if key is stolen, lose, manage inefficacy, all locksets of its correspondence all can be caused all may to have by unauthorized situation about opening, cause serious management risk.Along with the development of science and technology, there is again the electric control lock adopting smart card to unblank.Although this lockset has the function can carrying out many lock management, but because the volume of lock body is large, need wiring, cost is high, complex structure, the convenient wirings such as indoor place with good conditionsi and environment good condition can only be used under use, not there is compliance widely.
Have also appeared the pure mechanical lock that a kind of mode of being undertaken unblanking by electronic authorization key manages most amount in recent years, but this technology does not possess electronic code in lock, make managed lockset all use same mechanical coding, safety is poor.And these existing locksets cannot arrange in lock body inside self at the appointed time section can an appointed key or many keys open, the lock of such as some occasion time period that can only be on duty is designated key operated; Also cannot when the enabling authority of key holder changes, change the enabling authority of key, such as personnel department changes, and the door allowed out before some can not be opened again, the door can not opened before some such as can to open at the situation, and existing lockset cannot adapt to such change.
Have developed a kind of passive electronic lock at present abroad, there is no power supply in lock body, do not need to carry out the mounting designs such as wiring, with power supply in key.Lock body relies on contact electrode to contact with the contact electrode of key, and key is powered to lock body.But this mode is because adopt contact to power and communication, and contact is many at high humidity, dust, salt fog heavily etc. easily occurs the situations such as corrosion, oxidation, incrustation in environment, produce the problem of loose contact, and use in containing the environment of flammable explosive gas, electric spark may be produced because of loose contact and cause the accident.
Summary of the invention
The invention provides a kind of electron key, make that lockset is many at high humidity, dust, salt fog can not produce loose contact situation when heavily etc. using in adverse circumstances, also can not use in containing the environment of flammable explosive gas and cause potential safety hazard.
Electron key of the present invention, the solution lock unit comprising circuit control unit and control by described circuit control unit, there is the display unit, push-button unit, memory cell and the PMU that are connected with microprocessor respectively in circuit control unit, coil output unit carries out input by signal receiving unit and described microprocessor and is connected, microprocessor carries out output by power amplifier unit with described coil output unit and is connected, and has the transmitting coil for transmitting in described coil output unit.Wherein the model of microprocessor is MSP420 series (as MSP430F169), or PIC series (as PIC18F452) is all applicable.Electron key of the present invention have employed transmitting coil and corresponding lock body, and to carry out communication data mutual and power to lock body.After electron key carries out data verification with corresponding lock body by transmitting coil, electron key judges that lock body is legal, then is powered to lock body by transmitting coil, and the internal circuit of lock body is unlocked lock body.Because key bit does not contact with lock body, therefore avoid and produce various drawback because of the two contact.Simultaneously by the setting to electron key, an electron key is enable to authorize multiple lock bodies of specifying or shield.
Further, shell and latch release shaft is comprised at described solution lock unit, described latch release shaft is provided with axle and unlocks tooth, described latch release shaft is rotatable to be arranged in described shell, described shell offers unblock breach, described unblock breach is positioned at described axle and unlocks on the rotational trajectory of tooth, and the width of described unblock breach is not less than described axle and unlocks tooth, and the length of described unblock breach is not less than the distribution length of described axle unblock tooth in described latch release shaft; Unlocking motor is arranged in described shell and is connected with the microprocessor in circuit control unit, and the rotating shaft of unlocking motor is connected with described latch release shaft.
On the basis of said structure, also comprise anti-dial spring, described anti-dial spring is arranged in described shell, and the two ends of described anti-dial spring are connected respectively at the rotating shaft of latch release shaft with described unlocking motor.
Further, also comprise controller, described controller is arranged in described shell, and described unlocking motor is controlled by described controller.
Further, described shell is provided with unblock tooth.
Due to the rotatable setting of latch release shaft in the enclosure, therefore axle must be unlocked tooth spiral forward to when unblanking and unlock indentation, there, only just can use the unblock of the axle in latch release shaft tooth when unblanking like this, and the unblock tooth in axle latch release shaft at ordinary times hides in the enclosure, be subject to the protection of shell, doing so avoids axle and unlock tooth damage.Unlocking motor, anti-dial spring and controller can also be set in key, utilize controller identification external information, thus control unlocking motor rotation, when external information does not meet, then can not rotate latch release shaft, still play certain anti-theft function when key loss like this, simultaneously, when switch latch release shaft by force, anti-dial spring can utilize elastic force that latch release shaft is revert to original position, this prevents person's switch latch release shaft by force of stealing key.
Further, signal receiving unit in described circuit control unit comprises the low speed signal receiving element and high speed signal receiving element that are connected with described coil output unit respectively, wherein in high speed signal receiving element, there is amplifier, the positive pole of amplifier is connected with coil output unit, and the output of amplifier is connected with described microprocessor.Low speed signal receiving element is used for electron key and lock body carries out communication, and high speed signal receiving element is used for the equipment such as electron key and computer and carries out communication, electron key is carried out to the setting of related data.The circuit structure of low speed signal receiving element can with traditional RFID(electronic tag) circuit structure similar or identical.
Concrete, the input of the transmitting coil of described circuit control unit is connected with breakover element by relay, makes transmitting coil carry out signal transmission with low speed signal receiving element or high speed signal receiving element respectively by the adhesive of breakover element control relay or disconnection.
Preferably, described breakover element is triode, also can be other element with identical function, as FET etc.
Preferably, microprocessor is also connected with phonation unit, carries out auditory tone cues to the various states in communication.
Electron key of the present invention have employed transmitting coil and lock body carries out contactless communication and power supply, enable that electron key is many at high humidity, dust, salt fog can not produce the situations such as loose contact when heavily etc. using in adverse circumstances, stopped the potential safety hazard used in containing the environment of flammable explosive gas.Effectively can prevent switch latch release shaft by force from carrying out the illegal unblock behavior such as unblank by anti-dial spring and dependency structure simultaneously, play good anti-theft function.
Below in conjunction with the detailed description of the invention by accompanying drawing illustrated embodiment, foregoing of the present invention is described in further detail again.But this should be interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to following example.Without departing from the idea case in the present invention described above, the various replacement made according to ordinary skill knowledge and customary means or change, all should comprise within the scope of the invention.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the circuit control unit of electron key of the present invention.
Fig. 2 is the coil output unit of Fig. 1 and the circuit diagram of signal receiving unit.
Fig. 3 is the perspective view of the solution lock unit of electron key of the present invention.
Fig. 4 be Fig. 3 partly cut open schematic diagram.
Fig. 5 is the front view of Fig. 3.
Fig. 6 is the zero OOK coding/decoding waveform of electron key of the present invention when high-speed data communications.
Detailed description of the invention
Electron key of the present invention, the solution lock unit comprising circuit control unit and control by described circuit control unit, having in circuit control unit is as shown in Figure 1 the display unit that the microprocessor of MSP430F169 or PIC18F452 is connected respectively with model, push-button unit, memory cell, phonation unit and PMU, coil output unit carries out input by signal receiving unit and described microprocessor and is connected, microprocessor carries out output by power amplifier unit with described coil output unit and is connected, there is in described coil output unit the transmitting coil for transmitting.Wherein display unit is for showing various information, as electron key state, content etc. is set; Push-button unit is used for arranging input accordingly to electron key; Memory cell stores the various information needing to store; It is mutual and power to lock body that transmitting coil is used for carrying out communication data to lock body.After electron key carries out data verification with corresponding lock body by transmitting coil, electron key judges that lock body is legal, then is powered to lock body by transmitting coil, and the internal circuit of lock body is unlocked lock body; Generating unit can carry out auditory tone cues to the various states of electron key; The electricity supply of above-mentioned each unit is all managed by PMU.
There is at signal receiving unit the low speed signal receiving element and high speed signal receiving element that are connected with described coil output unit respectively.Low speed signal receiving element is used for electron key and lock body and carries out communication, its circuit structure can with traditional RFID(electronic tag) circuit structure similar or identical.As shown in Figure 2, have amplifier U9 in high speed signal receiving element, the positive pole of amplifier U9 is connected with the transmitting coil L1 of coil output unit, and the output of amplifier U9 is connected with described microprocessor.High speed signal receiving element is used for the equipment such as electron key and computer and carries out communication, electron key is carried out to the setting of related data.In coil output unit, the input of transmitting coil L1 is connected with the breakover element Q0 of audion by relay R L1, makes transmitting coil L1 carry out signal transmission with low speed signal receiving element or high speed signal receiving element respectively by the adhesive of breakover element Q0 control relay RL1 or disconnection.
As shown in Figure 3, in solution lock unit, there is shell 6, latch release shaft 1 and unlocking motor 3.Described latch release shaft 1 is provided with axle and unlocks tooth 2, described latch release shaft 1 is rotatable to be arranged in described shell 6, described shell 6 offers and unlocks breach 4, described unblock breach 4 is positioned at described axle and unlocks on the rotational trajectory of tooth 2, the width of described unblock breach 4 is not less than described axle and unlocks tooth 2, and the length of described unblock breach 4 is not less than the distribution length of described axle unblock tooth 2 in described latch release shaft 1.Unlocking motor 3 to be arranged in described shell 6 and to be controlled by controller, and described controller is connected with the microprocessor in circuit control unit, and the rotating shaft of unlocking motor 3 is connected with described latch release shaft 1.Unlocking motor 3 provides electric energy by the battery be arranged in shell 6.Like this when unblanking, after circuit control unit is judged as legal unlocking program, namely make unlocking motor 3 to rotate latch release shaft 1 by microprocessor and controller, thus make axle unlock tooth 2 aligning unblock breach 4, thus realize unblanking.Latch release shaft 1 is directly formed with described shell 6 by bearing or shaft hole matching and is rotatably assorted, such latch release shaft 1 is being installed to after in shell 6 and can rotating freely, usually a limited block is set in shell 6, latch release shaft 1 is made to rotate to certain position, namely axle unlocks tooth 2 just to the position unlocking breach 4, and such fast and easy is rotated in place.When not using key at ordinary times, latch release shaft 1 can be rotated, make axle unlock tooth 2 and be hidden in shell 6, whole like this key would not spill axle and unlock tooth 2; When needs use, rotate latch release shaft 1, make axle unlock tooth 2 and be right against unblock breach 4, thus axle unblock tooth 2 is spilt, so just can match with the coding of lock, thus realize unblanking.Arranging like this can avoid axle unblock tooth 2 to spill, avoid axle to unlock tooth 2 to wear and tear, some identification mechanisms can be utilized to rotate to control latch release shaft 1 simultaneously, such as fingerprint, password, electronic identity and so on, even if key loss like this, the person of picking up also cannot rotate latch release shaft 1 by identification mechanism, serves anti-theft feature to a certain extent.
In order to prevent stirring latch release shaft 1 from unblock breach 4, as shown in Figure 4, in solution lock unit, also include anti-dial spring 5.Described anti-dial spring 5 is arranged in described shell 6, and the two ends of described anti-dial spring 5 are connected respectively at the rotating shaft of latch release shaft 1 with described unlocking motor 3.Rotate latch release shaft 1 at needs, start unlocking motor 3, unlocking motor 3 drives anti-dial spring 5 to rotate, and anti-dial spring 5 drives latch release shaft 1 to rotate.After key is provided with identification mechanism, if other people stir latch release shaft 1 by unlocking breach 4, then after latch release shaft 1 is stirred putting in place, be inserted in lock once by key, anti-dial spring 5 loses constraint, then self-recovery original state, and latch release shaft 1 is also restored to the original state, this prevents manual toggle latch release shaft 1 to realize unblanking, serve certain anti-theft function.
As shown in Figure 5, shell 6 is also provided with unblock tooth 7.It is combined that unblock tooth 7 on shell 6 and the axle in latch release shaft 1 unlock tooth 2, thus match with the coding of lock, jointly realizes the unlocking function of electron key.
Low speed energy supply communication mode in circuit control unit is mainly used in electron key for lock body provides electric energy to be connected with bi-directional half-duplex communication.Under low speed energy supply communication mode, the microprocessor of electron key exports the breakover element Q0 conducting that high level makes audion, relay R L1 adhesive, resonant capacitance C50 and transmitting coil L1 meets the condition of resonance that frequency is f1, and microprocessor exports high level and makes PMU stable output VDD power supply.The another pin output duty cycle of microprocessor is 50% and the PWM square wave that frequency is f1 outputs to the coil resonance loop of transmitting coil L1 and resonant capacitance C50 through power amplifier unit.When the resonance frequency matches of the resonant frequency of circuit in lock body and electron key, lock body will induce enough electric energy and carry out work.When feedback signal to be fed back to transmitting coil L1 and the resonant capacitance C50 of electron key coil output unit by lock body through electromagnetic induction, through low speed signal receiving element LPF, demodulate reset answer data after amplification ratio and deliver in microprocessor and carry out computing, identification.When the non-designated lock body of recognition result, interval time repeats above process after t1.Export through (the wherein f1 representative ' 1 ' of 2FSK coding when recognition result meets and specifies lock body from microprocessor, f0 representative ' 0 ', both frequency differences is Δ f) director data flow through power amplifier unit and amplify, deliver to coil output unit and be sent to lock body by electromagnetic induction, lock body feeds back to main control end through the above 2ASK coded system again.Use above-mentioned up 2ASK to modulate sectional drawing, two-way data communication is carried out in descending 2FSK modulation /demodulation, can not be interrupted during this two-way data communication because the coil L1 of main control end exports, and just the converting electric power of frequency or amplitude will be constant.
High speed communication pattern is mainly used in electron key first and electron key second or carries out the communication of high-speed bidirectional half-duplex data between electron key and PC/ smart machine, and usual this communication is used for inputting electron key or arranging accordingly.Its communication speed can reach 57600 ~ 460800bps(bitspersecond), high communication handling capacity can be reached.
Q0 triode ON is made as the microprocessor output low level of the electron key first sent under high speed energy supply communication mode, relay R L1 discharges, the resonant tank of resonant capacitance C50 and transmitting coil L1 disconnects and loses condition of resonance, and under this state, transmitting coil L1, resistance R79 and electric capacity C47 form the radio circuit of low time constant.Microprocessor exports high level makes PMU export VDD power supply, and other pin output low level of microprocessor, enters preparation accepting state.When sending data microprocessor output duty cycle be 0.1875 zero OOK encoded data stream (the effective data flow of high level) output to the transmitting coil L1 of coil output unit and the formation wire loop of resistance R79 and electric capacity C47 through power amplifier unit.The relevant pins that data are sent completely microprocessor recovers Low level effective, enters accepting state.
Also preparation accepting state is entered by above-mentioned flow process as the electron key second received, when receiving equipment is in time sending the transmitting coil L1 of transmitting apparatus of data, the transmitting coil L1 of receiving equipment produces the waveform similar to transmitting apparatus because of electromagnetic induction, the zero OOK encoded data stream of transmitting apparatus is restored through high speed signal receiving element filter and amplification, enter microprocessor and carry out Decoding Analysis process, response zero OOK encoded data stream exports from microprocessor, gets back to transmitting apparatus.
Use the above flow process to realize zero OOK coding/decoding half-duplex high-speed communication that physical layer dutycycle is 0.1875.Because data flow exports high level pulsewidth very narrow (dutycycle is very low), therefore power consumption is very low.
As shown in Figure 6, when high-speed data communications, dutycycle is the zero OOK coding/decoding waveform of 0.1875, as can be seen from the figure, in coding waveforms:
16 frequencys multiplication of data flow code check are sent during BITCLK.
TX is waveform before transmission data stream encoding.
TXOUT sends data waveform after the zero OOK coding that dutycycle is 0.1875.
In decode waveform:
16 frequencys multiplication of data flow code check to be received during BITCLK.
RXIN is the waveform after the zero OOK coding that dutycycle is 0.1875 received.
RX be through dutycycle be 0.1875 zero OOK decoded data steam coding waveforms.
It can thus be appreciated that electron key of the present invention, have employed transmitting coil to launch communication data and to power to lock body, key bit does not contact with lock body, thus avoid and produces various drawback because of the two contact.Simultaneously by the setting to electron key, an electron key is enable to authorize multiple lock bodies of specifying or shield.And effectively can prevent switch latch release shaft by force from carrying out the illegal unblock behavior such as unblank by anti-dial spring and dependency structure, play good anti-theft function.
Claims (8)
1. electron key, the solution lock unit comprising circuit control unit and control by described circuit control unit, there is the display unit, push-button unit, memory cell and the PMU that are connected with microprocessor respectively in circuit control unit, it is characterized by: coil output unit carries out input by signal receiving unit and described microprocessor and is connected, microprocessor carries out output by power amplifier unit with described coil output unit and is connected, and has the transmitting coil for transmitting in described coil output unit;
Shell (6) is comprised at described solution lock unit, latch release shaft (1) and unlocking motor (3), described latch release shaft (1) is provided with axle and unlocks tooth (2), described latch release shaft (1) is rotatable to be arranged in described shell (6), described shell (6) offers and unlocks breach (4), described unblock breach (4) is positioned at described axle and unlocks on the rotational trajectory of tooth (2), the width of described unblock breach (4) is not less than described axle and unlocks tooth (2), and the length of described unblock breach (4) is not less than described axle unlocks tooth (2) distribution length in described latch release shaft (1), unlocking motor (3) is arranged in described shell (6) and is connected with the microprocessor in circuit control unit, and the rotating shaft of unlocking motor (3) is connected with described latch release shaft (1).
2. electron key as claimed in claim 1, it is characterized by: separate in lock unit and there is anti-dial spring (5), described anti-dial spring (5) is arranged in described shell (6), and the two ends of described anti-dial spring (5) are connected with the rotating shaft of latch release shaft (1) with described unlocking motor (3) respectively.
3. electron key as claimed in claim 2, is characterized by: separate in lock unit and also include controller, described controller is arranged in described shell (6), and described unlocking motor (3) is controlled by described controller.
4. electron key as claimed in claim 3, is characterized by: be provided with on described shell (6) and unlock tooth (7).
5. the electron key as described in one of Claims 1-4, it is characterized by: the signal receiving unit in described circuit control unit comprises the low speed signal receiving element and high speed signal receiving element that are connected with described coil output unit respectively, wherein in high speed signal receiving element, there is amplifier, the positive pole of amplifier is connected with coil output unit, and the output of amplifier is connected with described microprocessor.
6. the electron key as described in one of Claims 1-4, is characterized by: the input of the transmitting coil of described circuit control unit is connected with breakover element by relay.
7. electron key as claimed in claim 6, is characterized by: described breakover element is triode.
8. the electron key as described in one of Claims 1-4, is characterized by: microprocessor is also connected with phonation unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210261464.9A CN102747869B (en) | 2012-07-26 | 2012-07-26 | Electron key |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210261464.9A CN102747869B (en) | 2012-07-26 | 2012-07-26 | Electron key |
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| CN102747869A CN102747869A (en) | 2012-10-24 |
| CN102747869B true CN102747869B (en) | 2016-03-23 |
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| CN201210261464.9A Active CN102747869B (en) | 2012-07-26 | 2012-07-26 | Electron key |
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| CN1950914A (en) * | 2004-05-04 | 2007-04-18 | 皇家飞利浦电子股份有限公司 | A wireless powering device, an energizable load, a wireless system and a method for a wireless energy transfer |
| JP2008199787A (en) * | 2007-02-13 | 2008-08-28 | Miwa Lock Co Ltd | Remote controller |
| CN101629463A (en) * | 2009-02-22 | 2010-01-20 | 余义伦 | Remote control lock without power source |
| CN201666040U (en) * | 2010-01-25 | 2010-12-08 | 方荣光 | Key of optical coded lock |
| CN102041925A (en) * | 2010-02-11 | 2011-05-04 | 珠海理想科技有限公司 | Electrically controlled intelligent key for magnetically coded lock |
| CN202788226U (en) * | 2012-07-26 | 2013-03-13 | 成都泰然科技有限公司 | Electronic key |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312617A (en) * | 2011-09-15 | 2012-01-11 | 吴斐 | A non-power electronic lock and corresponding unlocking handset device |
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2012
- 2012-07-26 CN CN201210261464.9A patent/CN102747869B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1950914A (en) * | 2004-05-04 | 2007-04-18 | 皇家飞利浦电子股份有限公司 | A wireless powering device, an energizable load, a wireless system and a method for a wireless energy transfer |
| JP2008199787A (en) * | 2007-02-13 | 2008-08-28 | Miwa Lock Co Ltd | Remote controller |
| CN101629463A (en) * | 2009-02-22 | 2010-01-20 | 余义伦 | Remote control lock without power source |
| CN201666040U (en) * | 2010-01-25 | 2010-12-08 | 方荣光 | Key of optical coded lock |
| CN102041925A (en) * | 2010-02-11 | 2011-05-04 | 珠海理想科技有限公司 | Electrically controlled intelligent key for magnetically coded lock |
| CN202788226U (en) * | 2012-07-26 | 2013-03-13 | 成都泰然科技有限公司 | Electronic key |
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| CN102747869A (en) | 2012-10-24 |
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