CN101477717A

CN101477717A - Multifunctional intelligent key having general purpose computer plug and play mobile memory

Info

Publication number: CN101477717A
Application number: CNA2008100193259A
Authority: CN
Inventors: 翟达
Original assignee: Individual
Current assignee: Di Xiaoping
Priority date: 2008-01-03
Filing date: 2008-01-03
Publication date: 2009-07-08

Abstract

The invention provides a multifunctional intelligent key with a plug-and-play mobile memory of a general computer. The key comprises a key head 11, a contact 5 mounted on the key head 11, an electronic circuit device 9 electrically connected with the contact 5, and a casing 7, wherein, the electronic circuit device 9 comprises a control device for switching interface works for an electronic lock and other devices provided with plug-and-play interfaces of the general computer, and a plug-and-play mobile memory device of the general computer. By combining a common key a person carries and the plug-and-play mobile memory of the general computer as one, the novel multifunctional intelligent key can allow people to combine more keys as one, so that people can open various and sundry electronic locks with the key provided by the invention.

Description

Multifunctional intelligent key with general purpose computer plug and play mobile memory

Affiliated technical field

The present invention relates to lockset and robot calculator.

Background technology

Contemporary society, in today that electronic computer technology develops rapidly, the general purpose computer plug and play interfacing is fast with its travelling speed, information capacity is big, can be directly on computers characteristics such as plug and play just be subjected to people and pay close attention to widely and use.Wherein, the most widely used is exactly the USB interface technology of multi-purpose computer, and the USB mobile memory of popularizing rapidly (abbreviation USB flash disk).Increasing people just as carrying USB flash disk mobile memory, the articles for daily use that the USB flash disk mobile memory has become a lot of people to be unable to do without with carrying key.

Contemporary society, characteristics such as in today that electronic computer technology develops rapidly, electronic lock is good with its safe antitheft performance, function is many just are being subjected to people and are paying close attention to widely.Present electronic lock can be divided into two classes: a class is the electronic lock that power supply is arranged in the lock, they are mainly used in the door lock of hotel and high-grade office, wherein the overwhelming majority is as key with Contact Type Ic Card, do not have power supply in this IC-card key, acquisition is powered and is carried out work from lock after it inserts the key hole of electronic lock; Another kind of is power free electronic lock in the lock, and they are mainly used in fields such as family, office and door, drawer, cabinet, case and bag, and this electronic lock is provided power supply and carries out work to lock by key after key inserts lockhole.

Although it is well-known, any electronic lock can be one with the whole unifications of the key of a lot of similar electronic locks, but, when people run into power supply arranged in the above-mentioned lock with lock in power free two kinds of electronic locks when all needing to use, present electronic lock technology may be one with the key unification of these two kinds of electronic locks in no case.And for power supply being arranged in the present lock and being the electronic lock of key with the contact card, it is not a thing very easily that key is authorized (bitting or cancellation key) yet, this need use specialized apparatus or instrument to realize, so, consider from the angle of safety, use and take care of these equipment and trouble often appears in instrument.In addition, all IC-card keys for present electronic lock, because its contact is installed on the face of card, therefore the pros and cons of key must be distinguished in use and which end of contact must be distinguished at card, the situation that wrong plug is often arranged and do not open occurs, and this is very inconvenient in the use.Equally, present USB flash disk mobile memory also exists the defective that needs to distinguish the pros and cons direction of insertion.

Because present electronic lock exists above-mentioned many disadvantages, carries out promotion and application thereby limited electronic lock in more wide scope and field.Simultaneously, because the key and the key hole of present all electronic locks, be that the physical construction mode of interface or the communications protocol mode of interface electric signals are all fully different with the most universal general purpose computer plug and play interface (USB interface) of most widely used general use at present, thereby limited the widely used computer of electronic lock and contemporary society and relevant devices in the use with technical direct support be closely connected.

In fact, with regard to the principle of unblanking of electronic lock, its main process just is to discern unlocking cipher or the authorization message of unblanking, and driving motor or electromagnet move the dead bolt switch then.And the key of electronic lock only is a mobile memory of having stored the unlocking cipher or the authorization message of unblanking.If, we design the key plug of electronic lock and key hole thereof the mode according to general purpose computer plug and play interface (USB interface), and key and the daily general purpose computer plug and play mobile memory of carrying of people (USB flash disk mobile memory) are combined as a whole, simultaneously creatively solving power supply in the electronic circuit device of key and operated software switches, switch the contact, the switching of different communications protocol programs, the problems such as switching of pros and cons contact sets, so, this novel key that has power supply input and output control function and have general purpose computer plug and play mobile memory (USB flash disk mobile memory), not only can open the electronic lock that power supply is arranged in the lock, also can open power free electronic lock in the lock, can also be as general purpose computer plug and play mobile memory (USB flash disk mobile memory) directly at computer and have on the equipment of general purpose computer plug and play interface and use.Like this, this novel key can be one with the more key unification of people not only, opens greater number and a greater variety of electronic lock with a key, and all right one-object-many-purposes is to reduce objects carried by people.In addition, the more important thing is, since this novel key can be directly and computer and equipment with general purpose computer plug and play interface (USB interface) realize intercommunication in the use, thereby just can save specialized equipment or instrument, make it from computer and relevant device, to obtain more function and technical direct support and be closely connected the key mandate.If on this novel key, the password of unlocking cipher, the authorization message of unblanking and authentication or information directly are stored in the USB flash disk mobile memory that people widely use with the method for encrypt file by computation, utilize the huge storage space of the powerful file processing function of computer and encryption function and USB flash disk mobile memory, just can give this novel key more, more intelligent, more convenient, safer operating characteristic, thereby help the safe handling and the function expansion popularizing and help the USB flash disk mobile memory of electronic lock.

Design and make the subject matter that the above-mentioned novel intelligent key of the present invention will face and be: 1, the problem of the automatic switchover that inputs or outputs of power supply.2, according to electric signal requirement, the connection of automatic switchover contact or the functional configuration problem of different communications protocol interfaces.3, the signal of the different communications protocol interfaces of detection and Identification how, and the procedural problem of the different communications protocol of automatically switching operation how.4, how to solve the automatic switchover problem of key bit pros and cons contact sets.5, key bit is corresponding to the physical construction problem of general purpose computer plug and play interface.

Summary of the invention

Purpose of the present invention is exactly in order to overcome the deficiency of above-mentioned existing electronic lock and key and general purpose computer plug and play mobile memory, and a kind of multifunctional intelligent key with general purpose computer plug and play mobile memory is provided.

The technical scheme that the present invention is adopted for its technical matters of solution is:

A kind of multifunctional intelligent key with general purpose computer plug and play mobile memory, it comprises key bit, is installed in the contact on the key bit, electronic circuit device that is electrically connected with the contact and shell, wherein: electronic circuit device comprises and can carry out control device and the general purpose computer plug and play mobile memory device that interface work is switched to electronic lock and other equipment with general purpose computer plug and play interface.

Control device comprises can discern microprocessor different communications protocol programs with blocked operation, that have nonvolatile memory, in microprocessor, stored the lockset running program related with the electronic lock communications protocol and with the related interface operation program of general purpose computer plug and play interface communication protocol.

Control device comprises the power supply switch circuit that can input or output switching to power supply, and this power supply switch circuit comprises electronic switch and the power supply that is subjected to microprocessor I/O port controlling.

Control device comprises the power supply switch circuit that can input or output switching to power supply, and what this power supply switch circuit comprised microprocessor is subjected to programme controlled I/O port and power supply.

Control device comprises the contact commutation circuit that the electric signal according to distinct interface requires the access function to the contact to switch, and this contact commutation circuit comprises the electronic switch that is subjected to microprocessor I/O port controlling.

Control device comprises the contact commutation circuit that the electric signal according to distinct interface requires the access function to the contact to switch, and this contact commutation circuit comprises programme controlled I/O port that is subjected to of microprocessor.

Installation site, contact on the key bit is corresponding with the installation site, contact of general purpose computer plug and play interface plug.

Has installed respectively and corresponding two groups of contacts, the installation site, contact of general purpose computer plug and play interface plug on the two sides of key bit.

Control device comprises that the wherein one group of contact that can switch on the key bit in two groups of contacts is the contact sets commutation circuit that work inserts, and this contact sets commutation circuit comprises the electronic switch that is subjected to microprocessor I/O port controlling.

Control device comprises that the wherein one group of contact that can switch on the key bit in two groups of contacts is the contact sets commutation circuit that work inserts, and this contact sets commutation circuit comprises programme controlled I/O port that is subjected to of microprocessor.

The part outside surface of key bit is being wrapped up in a metallic sheath, and all contacts are exposed to the outside of this metallic sheath.

One end of metallic sheath has the U-shaped breach, and all contacts are exposed in this U-shaped breach.

Through hole or blind hole are arranged on the key bit.

The storage space of general purpose computer plug and play mobile memory comprises dedicated encrypted district and non-encrypted area.

Power supply is a rechargeable battery.

The invention has the beneficial effects as follows:

1, Intelligent key of the present invention not only can be used as the key of unblanking and uses but also can be used as general purpose computer plug and play mobile memory (USB flash disk mobile memory) and use, and one-object-many-purposes reduces objects carried by people.

2, with one Intelligent key of the present invention, can it be one with the more key unification of people; It both can be applied to power free electronic lock in the lock, and the electronic lock of power supply is arranged in also can being applied to lock; Both can be applied to electronic lock, also can be applied to such as minitype electronic locks such as drawer, cabinet, case and bag; Lead the key of market mainstream electronic lock and the frame mode unification of key hole to be the frame mode of general purpose computer plug and play interface (USB interface).

3, password or relevant authorization message can be flexible and changeable at storage mode on the key; Both can all be stored in the microprocessor, also can all be stored in the USB flash disk mobile memory; Perhaps, its part can also be stored in the microprocessor, and another part is stored in the USB flash disk mobile memory, makes the use of password or relevant authorization message and the encryption of USB flash disk use safer, more reliable.

4, can utilize the computer of band usb socket directly Intelligent key of the present invention to be operated, authorize, read the record or the like of unblanking comprising bitting, cancellation key, time, can save the specialized equipment or the specific purpose tool of bitting, easy to use.

5, because the powerful file processing function of general-purpose computer, so can carry out subregion encryption storage to all password and present popular dynamic encryption technology of The data that deposits plug and play mobile memory (USB flash disk mobile memory) in, make that the password and the data that deposit in are safer more reliable.

6, on Intelligent key of the present invention, can set up the dedicated encrypted storage space, with electronic certificate and the information carrier that carries out authentication when the services such as commerce, finance, travelling as specific mass organizations.

Description of drawings

The present invention is further illustrated below in conjunction with drawings and Examples:

Fig. 1 is the pattern identification of USB interface.

Fig. 2 is the partial cutaway schematic of USB interface A type plug, wherein: 1-contact, 2-metallic sheath.

Fig. 3 be among Fig. 2 A to synoptic diagram, wherein: 1-contact, 2-metallic sheath.

Fig. 4 be among Fig. 5 A to synoptic diagram, wherein: 3-contact, 4-metallic sheath.

Fig. 5 is the partial cutaway schematic of another kind of USB interface plug, wherein: 3-contact, 4-metallic sheath.

Fig. 6 is a partial cutaway schematic of the present invention, wherein: 5-contact, 6-metallic sheath, 7-shell, 8-CPU (microprocessor), 9-electronic circuit device, 10-battery, 11-key bit, 12-hole, 13-U disk storage or high-capacity FLASH storer.

Fig. 7 is the top view of Fig. 6, wherein: 6-metallic sheath, 7-shell, 11-key bit.

Fig. 8 is the partial cutaway schematic of electronic lock example, and wherein: 20-locks shell, the 21-insulator, and the 22-key hole, the 23-pellet shot from a slingshot, the 24-spring, 25-changes core apparatus, the 26-dead bolt, the 27-stopper, the 28-slide block, 29-locks the contact.

Fig. 9 is that partial cutaway schematic is looked on the left side of Fig. 8, wherein: the 11-key bit, the 12-hole, 20-locks shell, 23-pellet shot from a slingshot, 24-spring.

Figure 10 is the Intelligent key of the present invention postrotational synoptic diagram of unblanking among Fig. 9, wherein: 11-key bit, 23-pellet shot from a slingshot, 24-spring.

Figure 11 is a power free electronic lock circuit synoptic diagram in the lock.

Figure 12 has the circuit diagram of one of the electronic lock example of battery about usb segment in universal automatic computer or the lock.

Figure 13 is the circuit diagram of the embodiment of the invention one.

Figure 14 is the flow chart of microprocessor among Figure 13.

Figure 15 is the circuit diagram of the embodiment of the invention two.

Figure 16 is the flow chart of microprocessor among Figure 15.

Figure 17 is two the circuit diagram that the electronic lock example of battery is arranged in the lock.

Figure 18 is the circuit diagram of the embodiment of the invention three.

Figure 19 is the flow chart of microprocessor among Figure 18.

Figure 20 is the circuit diagram of the embodiment of the invention four.

Figure 21 is the flow chart of microprocessor among Figure 20.

Figure 22 is the circuit diagram of the embodiment of the invention five.

Figure 23 is the flow chart of microprocessor among Figure 22.

Figure 24 is that the storage space of USB flash disk mobile memory in the Intelligent key of the present invention is divided one of the embodiment synoptic diagram.

Figure 25 is two synoptic diagram that the storage space of USB flash disk mobile memory in the Intelligent key of the present invention is divided embodiment.

Embodiment

In embodiments of the present invention, the general purpose computer plug and play interface is exactly present widely used USB interface; The general purpose computer plug and play mobile memory device is exactly the USB mobile memory of extensively popularizing at present (abbreviation USB flash disk).Definition about USB interface, regulation that relevant international industry organization is early existing clear and definite and announcement already, this definition mainly comprises: the communications protocol mode that the electric signal connected mode of each contact or functional configuration, interface electric signals are transmitted in the mechanical structure form of interface, the interface etc.Fig. 1 is the pattern identification of international standard USB interface.Fig. 2 is the partial cutaway schematic of USB interface A type plug, and among the figure: contact 1 has 4, and installs side by side.Fig. 3 is that the A of Fig. 2 is to view.As can be seen, the contact 1 of USB interface plug has only one group from Fig. 2 and Fig. 3, and they all are hidden in the inside of metallic sheath and are partial to a side.Fig. 5 is another kind of small-sized USB interface plug, and its contact 3 also is one group, and they are hidden in the inside of metallic sheath 4 all and are partial to a side.Fig. 4 is that the A of Fig. 5 is to view.

In fact the described Intelligent key of the embodiment of the invention, its head are exactly a USB interface plug with single or double contact, and its version as shown in Figure 6 and Figure 7.Among the figure, left end is key bit 11 (branch that A face and B face are arranged), and it is made of metallic sheath 6, contact 5 and insulating material etc.; Metallic sheath 6 is rolled in the root outside surface of key bit 11, is the lead and the insulating material of connecting terminal 5 and electronic circuit device 9 in the inside of metallic sheath 6; This metallic sheath 6 is no matter from the vertical projection of A face or B face direction, all has identical U-shaped breach, design such metallic sheath 6 and can strengthen the physical strength of key bit 11 greatly, particularly strengthen its torsion strength (certainly, for the key bit that the single face contact is only arranged, metallic sheath can only have U type breach on a face, it is higher to understand intensity like this); In the U-shaped breach of metallic sheath 6, the contact sets that is exposed in the U-shaped breach has been installed; Around each contact 5 filling insulating material arranged all, all installing at A face and B face under the situation of contact also all has filling insulating material between the A face contact sets and B face contact sets; The outside surface of the outside surface of contact 5 and insulating material and metallic sheath 6 is on the same plane substantially; The installation site of key bit 11 upper contacts 5 is corresponding one by one with the installation site, contact of international standard USB interface plug respectively, that is to say, the installation site of the contact 5 on its mechanical dimension and the contact surface of contact all matches with the international standard usb socket.The right-hand member of Fig. 6 and Fig. 7 is a shell 117 of the present invention, in the inside of shell 7 electronic circuit device 9 is arranged, and electronic circuit device 9 links to each other with contact 5 one by one by lead; In electronic circuit device 9, comprise: power supply 10, the control device that contains microprocessor 8 (CPU), USB flash disk mobile storage apparatus 13 etc.; When USB flash disk mobile storage apparatus was made of microprocessor 8 (CPU) and high-capacity FLASH storer, 13 was the high-capacity FLASH storer.

For adapting to some electronic locks (as Fig. 8, Fig. 9, shown in Figure 10) at the needs that do not allow when unblanking with the key rotation key is arbitrarily extracted, the present invention is provided with hole 12 (shown in Figure 6) on key bit 11, this hole 12 can be a through hole, also can be blind hole (be commonly called as and be " pit ").In Fig. 8, Fig. 9, electronic lock shown in Figure 10, dead bolt 26 stretch out in lock shell 20 above; Below lock shell 20 hole that slide block 28, spring 24 and stopper 27 are installed is therein arranged, stopper 27 is tightly filled on lock shell 20, makes bad the moving in lower end of spring 24, and slide block 28 is withstood in the upper end of spring 24 makes it have the power that moves up; Being equipped with in the cavity of lock shell 20 changes core apparatus 25, changes to have key hole 22, lock contact 29 and insulator 21 in the core apparatus 25; Commentaries on classics core apparatus 25 can be followed insertion in the cavity of lock shell 20 key bit 11 rotates together, in the bottom hole of commentaries on classics core apparatus 25 pellet shot from a slingshot 23 that can slide is installed.When commentaries on classics core apparatus 25 was positioned at normotopia position shown in Figure 9, changeing the bottom hole of core apparatus 25 and the center line of 20 times faces of shell was same straight line; This moment is when inserting as Fig. 8 or key hole 22 shown in Figure 9 when key bit 11, the head of key bit 11 by the inclined-plane power effect promotion pellet shot from a slingshot 23 and oppress slide block 28 and spring 24 moves down; After key bit 11 inserted fully, the head of pellet shot from a slingshot 23 fell within the hole 12 of key bit 11, and pellet shot from a slingshot 23 is on the arc phase cross surface of changeing core apparatus 25 and shell 20 inner chambers with the cross surface mutually of slide block 28; If screw key can drive pellet shot from a slingshot 23 and followed and change core apparatus 25 and rotate together this moment, but this moment is if extract key bit 11, because the bottom hole of commentaries on classics core apparatus 25 and the center line of 20 times faces of shell be not on same straight line, make pellet shot from a slingshot 23 can't break away from the hole 12 of key bit 11 and slide, so make the key bit 11 extract (as shown in figure 10), thereby guaranteed that key is when rotation is unblanked and the electrically contacting of lock in non-normotopia position.Because the effect of hole 12 and pellet shot from a slingshot 23, key bit 11 only could be inserted or extract in the normotopia position that commentaries on classics core apparatus 25 is positioned at as shown in Figure 9.

The electronic lock that matches with the embodiment of the invention, installation site, contact in its key hole is corresponding one by one with the installation site, contact in the Universal USB interface socket, that is to say, the key hole of electronic lock is on physical construction, it in fact be exactly a usb socket (as shown in Figure 8, wherein 22 is jack, and 29 is the contact).Figure 11 is the circuit diagram of Powerless electronic lock in the known lock, and among the figure, key hole C is an earth terminal, and VC is a power supply side, and S is the signal and communication end, and G is the common ground end; M is a motor, and V is an electronic switch, and R is a current-limiting resistance; Its electric signal communications protocol is the special communication protocol of this lock, and this electronic lock relies on key and power supply is provided and carries out work.Figure 12 has the circuit diagram of one of power supply electronic lock example about USB interface and power unit in the lock, right-hand member is the usb socket as key hole among the figure, its electric signal communications protocol is a USB standard interface communications protocol, the power supply of this electronic lock, obtains power supply and carries out work to guarantee key insertion back to the power supply of the VCC of usb socket end by interface circuit from lock.Figure 12 is still known universal automatic computer and the circuit diagram about USB interface and power unit with universal automatic computer USB interface equipment simultaneously, power supply is powered to the VCC of usb socket end by interface circuit all the time among the figure, to guarantee that the USB interface plug inserts the back and obtains power supply and carry out work.Certainly, for the electronic lock that power supply is arranged in the lock shown in Figure 12, if necessary, its key hole mode and contact position are under the prerequisite that keeps USB interface physical construction, the connection of its contact or functional configuration can be carried out special definition, and its electric signal communications protocol mode also can be designed as the communications protocol mode of this electronic lock special use.

The embodiment of the invention is according to principle of work, universal automatic computer and the relevant devices of the frame mode of above-mentioned key, the supporting lockset principle of work about USB interface, and its electronic circuit device and the software program that matches thereof can be designed as following several mode:

Embodiment one:

This is the simple embodiment of the present invention.5 of contacts on the key bit 11 exist on one face in the present embodiment, therefore need not to consider the pros and cons switching problem of key bit 11 upper contacts 5.Key bit 11 inserts in the electronic locks or must insert by correct direction when inserting in other equipment with USB interface.The circuit diagram of present embodiment as shown in figure 13, among the figure: control device switches the core of (comprising that power supply switches, switch the contact and program is switched) as distinct interface being carried out work, and it is made up of two parts; Wherein first is a master controller, it stores the unlocking cipher of electronic lock or unblank authorization message and the lockset running program related with the electronic lock communications protocol by the formations such as microprocessor 8 (CPU), multichannel bidirectional electronic switch, transistor V1 and battery E that have nonvolatile memory in the nonvolatile memory of microprocessor 8 (CPU); Its second portion is the USB flash disk controller, it be exactly in fact known be hidden in the USB flash disk mobile memory with the high-capacity FLASH memory combination be the USB flash disk microprocessor of one, in this USB flash disk microprocessor, stored the interface operation program related with the general purpose computer plug and play interface communication protocol; In the present embodiment, the plug and play mobile memory device is directly copied the daily USB flash disk mobile memory that carries of people mechanically, and its power lead VCC, data line D-all link to each other with the multichannel bidirectional electronic switch with D+.In Figure 13, the I/O port C3 of CPU, the transistor V1 as electronic switch, current-limiting resistance R2, diode D1 and battery E constitute the out-put supply on-off circuit, when the C3 of CPU when low, power supply E is by the terminal A1 and the outside out-put supply of COM1 of diode D1, transistor V1 and multichannel bidirectional electronic switch; Terminal COM0, the B0 of multichannel bidirectional electronic switch and S constitute the input power switch circuit, and as S when being high, COM0 is communicated with B0, to provide power supply to the USB flash disk mobile memory; The out-put supply on-off circuit is with importing the power supply switch circuit that power switch circuit constitutes present embodiment.The C2 end of multichannel bidirectional electronic switch and CPU constitutes the contact commutation circuit, the control end S of multichannel bidirectional electronic switch links to each other with the C2 of CPU end, when the S end is high level, terminal COM0, COM1, COM2 are communicated with terminal B0, B1, B2 respectively, when S was low level, terminal COM0, COM1, COM2 were communicated with terminal A0, A1, A2 respectively.

Figure 14 is the flow chart of CPU among Figure 13, and with this flow chart and Figure 13 analysis that combines, the principle of work of present embodiment is as follows:

In Figure 13, wake up or the effect of reset circuit is to wake CPU up with the low level of output, this wakes up or the input end of reset circuit is F, at ordinary times the magnitude of voltage of F end be exactly the magnitude of voltage of battery E (3V) after through diode D1 (less than with near 3V); When the voltage of F end surpasses 3.5V (when key inserts USB interface) or is lower than 1V (when key inserts power free electronic lock in the lock), wake up or the R end of reset circuit all with output low level to wake up or the CPU that resets.The CPU of key is no matter be waken up under the sort of situation or the back (Figure 14) that resets, and the magnitude of voltage of the C1 port of at first sampling is also delivered to register U1 to it, whether discerns this magnitude of voltage then greater than 3.5V.Because the supply voltage E of present embodiment key is designed to 3V, and the output supply voltage of multi-purpose computer USB interface is defined as 5V, so when the CPU of key judges that sample voltage value among its register U1 is greater than 3.5V, just can think that it is inserted in the USB interface.And when the CPU of key judged that sample voltage value among its register U1 is not more than 3.5V, it must judge then whether its C1 holds is low level.If the level of C1 end for low and be not more than 3.5V through the judgement of front, does not illustrate that this wakes up is to disturb false wake-up, this key had not both inserted in the USB interface and had inserted in the lock, so the CPU of key enters into original sleep power down mode yet.If the CPU of key is low waking the level of judging its C1 end in the back up, illustrate that then key just is being inserted in the lock in the power free electronic lock.

If key (Figure 13) is inserted in the lock in the power free electronic lock (Figure 11), contact VCC, D-, D+ and GND on the key bit just is communicated with contact C, VC, S and G in the key hole respectively, because contact C ground connection in lock, make through waking up of connecting of isolation resistance R1 or the F end of reset circuit becomes low level by high level, thereby the CPU that makes key is waken up or resets, and port C1 is a low level simultaneously.The CPU of key judges that its port C1 is after the low level, makes its C2 end low for output, so terminal COM0, the COM1 of multichannel bidirectional electronic switch, COM2 are communicated with terminal A0, A1, A2 respectively; Then the CPU of key makes its C3 end for low, opens transistor V1, and power supply E is powered to electronic lock through D1, V1, A1, COM1 and contact D-; The CPU of key is configured to the needed single serial communication interface of electronic lock with its C4 end then, starts timer, transfers the lockset running program related with the electronic lock communications protocol, waits for the signal that receives from electronic lock.At this moment, behind the power supply that electronic lock (Figure 11) acquisition key provides, the order of promptly sending the inquiry unlocking cipher to key; Key is promptly understood this signal after the C4 of its CPU end obtains signal that electronic lock sends.If this signal is not the signal of electronic lock (Figure 11) the communications protocol form of agreement, even the perhaps signal of its electronic lock (Figure 11) communications protocol form but be not the order of electronic lock inquiry password, then the program of key CPU (Figure 14) will be at the time of timer meter after full 1 second, make the C3 end output height of CPU that transistor V1 is closed to stop outside power supply, suspending with the C4 of seasonal CPU end is high-impedance state (closing the electronic lock communication interface), and then makes sleep state that CPU enters power saving be waken up once more next time or reset to wait for.If this signal be electronic lock communications protocol form signal simultaneously or the order of electronic lock inquiry password, so, the CPU of key will answer unlocking cipher and restart timer with the cipher mode of agreement; Electronic lock was finished rapidly after unlocking cipher that obtains the key answer and checking correctly and was unblanked and shutdown signal stream this moment, so key is after waiting for for 1 second, make the C3 end output of CPU high, transistor V1 is closed to stop outside power supply, suspending with the C4 of seasonal CPU end is high-impedance state (closing the electronic lock communication interface), and then makes sleep state that CPU enters power saving be waken up once more next time or reset to wait for.

If being inserted into the electronic lock (Figure 12) that power supply is arranged in the lock or being inserted into such as computer etc., key (Figure 13) has in the equipment (Figure 12) of multi-purpose computer USB interface, contact VCC on the key bit, D-, D+ and GND just respectively with key hole in contact VCC, D-, D+ and GND are communicated with, because the contact VCC in the key hole has the power supply fan-out capability and is the 5V high level, so this high level just makes through waking up of connecting of isolation resistance R1 or the F end of reset circuit is 5V by the transition of 3V level, thereby the CPU that makes key is waken up or resets, and port C1 is the 5V high level simultaneously.The CPU of key judges that its port C1 is (Figure 14) after the above high level of 3.5V, make its C2 end high for output, so terminal COM0, COM1, the COM2 of multichannel bidirectional electronic switch are communicated with terminal B0, B1, B2 respectively, thereby realized that the switching of contact D-and D+ and USB flash disk mobile memory communication wire inserts and import the switching access of power supply (contact VCC) and USB flash disk mobile memory power lead.Since the USB flash disk mobile memory of present embodiment be actually with stored the microprocessor of USB communications protocol interface operation program and high-capacity FLASH memory combination be one, can be on the equipment that has the multi-purpose computer USB interface such as computer etc. the electronic installation of independent operation, so, when master controller CPU finishes the switching that the switching of also having finished different communications protocol interface operation program implementation carriers when switching with power supply and performed program are switched in above-mentioned contact; In such cases, comprise that equipment that all that power supply electronic lock and general-purpose computer are arranged in the lock have a multi-purpose computer USB interface just can carry out file or data write to the USB flash disk mobile memory of present embodiment key and operate, these operations comprise: dedicated encrypted district and non-encrypted area are set in the USB flash disk mobile memory, in dedicated encrypted district read-write electronic lock unlocking cipher or authorization message (perhaps reading and writing electronic lock unlocking cipher or authorization message in the mode of encrypt file) at non-encrypted area, read and write authentication information that specific mass organizations needs or authorization message (perhaps reading and writing authentication information or the authorization message that specific mass organizations needs in the mode of encrypt file) or the like at non-encrypted area in the dedicated encrypted district.So, electronic lock in reading the USB flash disk mobile memory unlocking cipher or the authorization message of unblanking after just can finish and unblank, and the equipment with multi-purpose computer USB interface of specific mass organizations in reading the USB flash disk mobile memory password or authentication information and related data after just can realize operations such as commerce, finance or travel service.As storage space synoptic diagram such as Figure 24 and shown in Figure 25 of the USB flash disk mobile memory of embodiment, wherein Figure 24 is as shown in figure 12 the electronic lock storage space synoptic diagram when key of the present invention not being unblanked to authorize as yet.The equipment that has the multi-purpose computer USB interface at electronic lock (Figure 12) or other carries out the above-mentioned mandate that comprises to the key of present embodiment, unblank, identification, reading and writing data etc. operation and in the process of waiting for these operations, the CPU of key will constantly deliver to register U1 to the sample voltage value of C1 end and upgrade, monitor constantly that simultaneously whether this magnitude of voltage is greater than 3.5V, in case judge that this magnitude of voltage is not more than 3.5V then think that key has been pulled out the USB interface jack, so, the CPU of key makes the low S end of multichannel bidirectional electronic switch that makes of its C2 end output for low, thereby with contact D-and D+, the execution carrier of power supply VCC and running program switches to the default conditions of waiting for electronic lock shown in Figure 11 (Figure 11) operation, and then makes sleep state that CPU enters into power saving be waken up once more next time or reset to wait for.

In the present embodiment, if select the bigger microprocessor of I/O port power output capacity for use, then the electronic switch that is made of transistor V1 and current-limiting resistance R2 among Figure 13 can be saved; After these two devices are removed, the C3 end of CPU directly is connected with the A1 end of multichannel bidirectional electronic switch, the C3 of CPU held simultaneously to be changed to high level by suspended state and to get final product in the program of CPU when needing externally power supply, the switch operating of out-put supply is just finished by programme controlled C3 port that is subjected to of microprocessor like this.

Embodiment two:

On the basis of the foregoing description one (Figure 13 and Figure 14), the contact handoff functionality of multichannel bidirectional electronic switch and power supply handoff functionality changed by programme controlled I/O port that is subjected to of key CPU realize, the repertoire of its USB flash disk microprocessor is changed by key CPU simultaneously and take into account realization, so the present invention can be just like Figure 15 and embodiment shown in Figure 16 according to the principle of compositionality of USB flash disk mobile memory and principle of work.In the present embodiment, 5 of the contacts on the key bit 11 exist on one face, therefore need not to consider the pros and cons switching problem of key bit 11 upper contacts 5.Control device switches the core of (comprising that power supply switches, switch the contact and program is switched) as distinct interface being carried out work, and it is made of the microprocessor that has nonvolatile memory (CPU), transistor V1, V2 and resistance R 2, R3, diode D1 and battery E.In Figure 15, the I/O port E2 of CPU, the transistor V1 as electronic switch, current-limiting resistance R2, diode D1 and battery E constitute the out-put supply on-off circuit, when the E2 of CPU when low, power supply E is by diode D1, transistor V1 and the outside out-put supply of contact D-; The port E5 of contact VCC, diode D2, transistor V2, resistance R 3 and CPU constitutes the input power switch circuit, when the voltage on the VCC of contact is higher than the voltage of diode D2 right-hand member, system power supply automatically switches to outer power supply mode, and this moment, the port E5 output low level of CPU opened transistor V2 to power to the high-capacity FLASH storer; The out-put supply on-off circuit is with importing the power supply switch circuit that power switch circuit constitutes present embodiment.Port E3, the E4 of CPU constitutes the contact commutation circuit, and they are switched to be embodied as the contact that adapts to different communications protocol interface needs by the programmed control of CPU.In the nonvolatile memory of microprocessor (CPU), store the unlocking cipher of electronic lock or the authorization message of unblanking, also stored lockset running program that is associated with the communications protocol of electronic lock and the interface operation program that is associated with the USB interface communications protocol simultaneously respectively.Key CPU is when carrying out various identifications, switching and control function, it and high-capacity FLASH storer have constituted USB flash disk mobile storage apparatus, and, be connected to respectively when using needed between its E3 and E4 end and its internal electric source VCC by programme controlled pull-up resistor as USB interface in the inside of CPU.Can store electrons in this high-capacity FLASH storer the unlocking cipher of lock or the authorization message of unblanking, specific mass organizations needed password, data and authentication information etc. and key user individual's when carrying out service such as commerce, finance or travelling relevant document and data.Its storage space synoptic diagram such as Figure 24 and shown in Figure 25, wherein Figure 24 is as shown in figure 12 the electronic lock storage space synoptic diagram when key of the present invention not being unblanked to authorize as yet.

Figure 16 is the flow chart of CPU among Figure 15, and with this flow chart and Figure 15 analysis that combines, the principle of work of present embodiment is as follows:

In Figure 15, wake up or the effect of reset circuit and principle of work and the foregoing description one (Figure 13) in identical.The CPU of key is being waken up by electronegative potential or noble potential or the back (Figure 14) that resets, and the magnitude of voltage of the e1 port of at first sampling is also delivered to register U1 to it, whether discerns this magnitude of voltage then greater than 3.5V.Because the supply voltage E of present embodiment key is designed to 3V, and the output supply voltage of multi-purpose computer USB interface is defined as 5V, so when the CPU of key judges that magnitude of voltage among its register U1 is greater than 3.5V, just can think that it is inserted in the USB interface.And when the CPU of key judged that magnitude of voltage among its register U1 is not more than 3.5V, it then must judge whether its port E1 is low level.If the level of E1 end for low and be not more than 3.5V through the judgement of front, does not illustrate that this wakes up is to disturb false wake-up, this key had not both inserted in the USB interface and had inserted in the lock, so the CPU of key enters into original sleep power down mode yet.If the CPU of key is low waking the level of judging its port E1 in the back up, illustrate that then key just is being inserted in the lock in the power free electronic lock.

If present embodiment key (Figure 15) is inserted in the lock in the power free electronic lock (Figure 11), contact VCC, D-, D+ and GND on the key bit just is communicated with contact C, VC, S and G in the key hole respectively, because contact C ground connection in lock, make through waking up of connecting of isolation resistance R1 or the F end of reset circuit becomes low level by high level, thereby the CPU that makes key is waken up or resets, and port E1 is a low level simultaneously.The CPU of key judges that its port E1 is after the low level, makes its E3 suspend for high-impedance state is low for output with seasonal E2 end, so transistor V1 by open-minded, makes power supply E power to electronic lock through D1, V1 and contact D-; The CPU of key is configured to the needed single serial communication interface of electronic lock with its E4 end then, starts timer, transfers the lockset running program related with the electronic lock communications protocol, waits for the signal that receives from electronic lock.At this moment, behind the power supply that electronic lock (Figure 11) acquisition key provides, the order of promptly sending the inquiry unlocking cipher to key; Key is promptly understood this signal after the E4 of its CPU end obtains signal that electronic lock sends.If this signal is not the signal of electronic lock (Figure 11) the communications protocol interface format of agreement, even the perhaps signal of its electronic lock (Figure 11) communications protocol interface format but be not the order of electronic lock inquiry password, then the program of key CPU (Figure 16) will be at the time of timer meter after full 1 second, make the E2 end output of CPU high, transistor V1 is closed to stop outside power supply, suspending with the E4 of seasonal CPU end is high-impedance state (closing the electronic lock communication interface), and then makes sleep state that CPU enters into power saving be waken up once more next time or reset to wait for.If this signal be the electronic lock interface format signal simultaneously or the order of electronic lock inquiry password, so, the CPU of key will answer unlocking cipher and restart timer with the cipher mode of agreement; Electronic lock was finished rapidly after unlocking cipher that obtains the key answer and checking correctly and was unblanked and shutdown signal stream this moment, so key is after waiting for for 1 second, make the E2 end output height of CPU that transistor V1 is closed to stop outside power supply, suspending with the E4 of seasonal CPU end is high-impedance state (closing the electronic lock communication interface), and then makes sleep state that CPU enters into power saving be waken up once more next time or reset to wait for.

If being inserted into the electronic lock (Figure 12) that power supply is arranged in the lock or being inserted into such as computer etc., key (Figure 15) has in the equipment (Figure 12) of multi-purpose computer USB interface, contact VCC on the key bit, D-, D+ and GND just respectively with key hole in contact VCC, D-, D+ and GND are communicated with, because the contact VCC in the key hole has the power supply fan-out capability and is the 5V high level, so this high level just makes through waking up of connecting of isolation resistance R1 or the F end of reset circuit is 5V by the transition of 3V level, thereby the CPU that makes key is waken up or resets, and port E1 is the 5V high level simultaneously.The CPU of key judges that its port E1 is (Figure 16) after the above high level of 3.5V, its port E3 and E4 switched and be configured to the USB communication interface, and make that E5 end output is low powers to the high-capacity FLASH storer to open transistor V2, transfer the interface operation program related simultaneously, wait for the signal that receives from the USB communication interface with the USB communications protocol.The CPU of key at first understands and judges whether this signal is the signal of USB interface form after the signal that receives the USB communication interface, if this signal is the signal of USB interface form, then the CPU of key must judge also whether this signal is the USB flash disk operational order; If this signal is not the USB flash disk operational order, CPU will continue to wait for the new signal of USB communication interface; If this signal is the USB flash disk operational order, CPU will constitute USB flash disk mobile storage apparatus with the high-capacity FLASH storer and switch in the program of carrying out the USB flash disk operational order.In such cases, comprise that equipment that all that power supply electronic lock and general-purpose computer are arranged in the lock have a multi-purpose computer USB interface just can carry out file or data write to the USB flash disk mobile storage apparatus of present embodiment key and operate, these operations comprise: in USB flash disk mobile storage apparatus dedicated encrypted district and non-encrypted area are set, in dedicated encrypted district read-write electronic lock unlocking cipher or authorization message (perhaps reading and writing electronic lock unlocking cipher or authorization message in the mode of encrypt file) at non-encrypted area, read and write authentication information that specific mass organizations needs or authorization message (perhaps reading and writing authentication information or the authorization message that specific mass organizations needs in the mode of encrypt file) or the like at non-encrypted area in the dedicated encrypted district.So, electronic lock in reading USB flash disk mobile storage apparatus unlocking cipher or the authorization message of unblanking after just can finish and unblank, and the equipment with multi-purpose computer USB interface of specific mass organizations in reading USB flash disk mobile storage apparatus password or authentication information and related data after just can realize operations such as commerce, finance or travel service.Because the modern computer technology can be set up a plurality of different file encryption spaces in the subregion with USB flash disk mobile memory technology in the storage space of USB flash disk, so Intelligent key of the present invention can provide to a plurality of specific mass organizations and be specific to the dedicated encrypted storage space that they use, these dedicated encrypted space internal memories contain the special purpose system or the authorization message of each specific mass organizations, with electronic certificate and the information carrier that carries out authentication when the services such as commerce, finance, travelling as specific mass organizations; For example, as the start key of computer or some equipment, credit card, consumption card, subway mass transit card, electronic ID card or the like, its prerequisite is that these different types of user devices must have can be for the usb socket that inserts.Storage space synoptic diagram such as Figure 24 and shown in Figure 25 as the USB flash disk mobile memory of embodiment, wherein the user file memory block is used by key holder individual, and Figure 24 is as shown in figure 12 the electronic lock storage space synoptic diagram when key of the present invention not being unblanked to authorize as yet.Among Figure 16, when the CPU of Electrical key finishes aforesaid operations and do not receive the signal of USB interface form, the CPU of key will constantly deliver to register U1 to the sample voltage value of E1 end and upgrade, monitor constantly that simultaneously whether this magnitude of voltage is greater than 3.5V, in case judge that this magnitude of voltage is not more than 3.5V then think that key has been pulled out usb socket, so, it is that high-impedance state is with the closed communication interface that the CPU of key makes its E3 and E4 suspend, high stopping with seasonal E5 output to the power supply of high-capacity FLASH storer, and then make sleep state that CPU enters into power saving be waken up once more next time or reset to wait for.

In the present embodiment, if select the bigger microprocessor of I/O port power output capacity for use, then the electronic switch that is made of transistor V1 and current-limiting resistance R2 among Figure 15 can be saved; After these two devices are removed, the E2 end of CPU directly is connected with contact D-, the E2 of CPU held simultaneously to be changed to high level by suspended state and to get final product in the program of CPU when needing externally power supply, the switch operating of out-put supply is just finished by programme controlled E2 port that is subjected to of microprocessor like this.

In the present embodiment, password or relevant authorization message can be flexible and changeable at storage mode on the key; Both can all be stored in the microprocessor, also can all be stored in the USB flash disk mobile memory; Perhaps, its part can also be stored in the microprocessor, and another part is stored in the USB flash disk mobile memory, makes the use of password or relevant authorization message and the encryption of USB flash disk use safer, more reliable.

In the present embodiment, if insert resistance R 4 (Figure 15), then battery E can select rechargeable battery for use, when key is inserted in the equipment that has the multi-purpose computer USB interface such as computer etc., power supply in the USB interface will be to battery charge, and resistance R 4 is a charging current limiter resistance.

Embodiment three:

On the basis of the foregoing description two, if demand side is not to the use of Powerless electronic lock in the lock for key of the present invention, the flow chart of its electronic circuit device and microprocessor can be reduced to respectively as Figure 18 and shown in Figure 19 so.Two circuit diagram of power supply electronic lock example is arranged in the lock that Figure 17 is with present embodiment matches, and the physical construction mode of USB interface has been adopted in the key hole mode of this electronic lock and installation site, contact, and the definition of its contact access function is its special use; Wherein, one of definition of contact access function is: D+ is the single serial communication interface, and D-is for detecting mouth, and VCC and GND are according to the definition of former USB interface constant (being respectively power supply and common ground end); This electronic lock has its special-purpose interface communication protocol simultaneously.In the present embodiment, the control device that electronic lock and other equipment with general purpose computer plug and play interface is carried out interface work switching is the microprocessor (CPU) that has nonvolatile memory, this microprocessor (CPU) has also been born the task of the different communications protocol programs with blocked operation of identification in the configuration of bearing the contact and task switching, and this microprocessor (CPU) also and the high-capacity FLASH storer constituted the general purpose computer plug and play mobile memory device.Lockset running program that is associated with the special communication protocol of this electronic lock and the interface operation program that is associated with the USB interface communications protocol in this CPU, have been stored respectively, in the inside of CPU, be connected to respectively when using needed between its E3 and E4 end and its internal electric source VCC by programme controlled pull-up resistor as USB interface.Figure 19 is the flow chart of present embodiment Figure 18, and when present embodiment was inserted into electronic lock (Figure 17) or is inserted into the equipment with USB interface, the present embodiment key is powered on to be waken up, so CPU detects at first whether the level of its E1 end is high level.If this moment, E1 end was not a high level, think that then this key is inserted in the equipment with USB interface (because between the contact D-of USB interface and the ground wire GND inserted in inside a pull down resistor); If this moment, E1 end was a high level, think that then this key is inserted in as shown in figure 17 the electronic lock (because between the contact D-of Figure 17 electronic lock and the power supply inserted in inside a pull-up resistor R).In Figure 19, judge that as CPU program branches thereafter is similar with the course of work to the program branches in the foregoing description two with the course of work, does not repeat them here after the level of E1 end.

Embodiment four:

In the present embodiment, key bit 11 is the USB interface plugs with two-sided contact, the installation site of the contact 5 on A, B two sides is corresponding one by one with the installation site, contact of international standard USB interface plug respectively on the key bit 11, that is to say, the installation site of the contact 5 on its mechanical dimension and the contact surface of contact all matches with the international standard usb socket, need not to consider the directionality problem of its A face or B face when key bit 11 is inserted into electronic lock key hole or usb socket.The electronic lock that matches with present embodiment is Figure 11 and Figure 12.Present embodiment is on the basis of the foregoing description two (Figure 15 and Figure 16), with the connectivity port of voltage sample port, CPU and signal wire D-and the D+ of the contact sets of key bit 11, out-put supply on-off circuit, input power switch circuit, CPU and wake up or the input port F of reset circuit etc. duplicates equally and increased by a cover, and the diode D2 in the former input power switch circuit is changed by transistor and CPU control, like this, develop the present embodiment circuit diagram that gets as shown in figure 20 by the foregoing description two, the flow chart of CPU as shown in figure 21 among the figure.

In Figure 20, wake up or reset circuit has two input port F1 and F2, their function and effect are the same with F end among Figure 15, and wherein F1 is that the B face wakes mouth up, and F2 is that the A face wakes mouth up; In CPU, the K1 end is a B face voltage sampling port, and the K2 end is an A face voltage sampling port; The D-/A of A face contact sets links to each other with the K7 end with the K6 of CPU respectively with D+/A on the key bit 11, the D-/B of B face contact sets links to each other with the K10 end with the K9 of CPU respectively with D+/B on the key bit 11, K9 and K10 end is suspended state when K6 and K7 end communication, and K6 and K7 end is suspended state when K9 and K10 end communication, CPU switches the connection status of K6, K7, K9, K10 end to reach the purpose that double-throw contact and contact sets insert by program, be subjected to K6, the K7 of programme controlled CPU, contact or the contact sets commutation circuit that K9, K10 end constitutes present embodiment.In the present embodiment, the K5 end of transistor V3, resistance R 5 and CPU constitutes A face out-put supply on-off circuit, the K8 end of transistor V4, resistance R 6 and CPU constitutes B face out-put supply on-off circuit, the K3 end of transistor V2, resistance R 3 and CPU constitutes A face input power switch circuit, and the K4 end of transistor V1, resistance R 4 and CPU constitutes B face input power switch circuit; These outputs or input power switch circuit have constituted the power supply switch circuit of present embodiment.Among Figure 20, R7 is a charging current limiter resistance.

In the present embodiment, microprocessor (CPU) and above-mentioned power supply switch circuit, contact or contact sets commutation circuit etc. constitute the control device of present embodiments, in the nonvolatile memory of microprocessor (CPU), store the unlocking cipher of electronic lock or the authorization message of unblanking, also stored lockset running program that is associated with the communications protocol of electronic lock and the interface operation program that is associated with the USB interface communications protocol simultaneously respectively.Key CPU is when carrying out various identifications, switching and control function, it and high-capacity FLASH storer have constituted USB flash disk mobile storage apparatus, and, be connected to respectively when using needed between its E3 and E4 end and its internal electric source VCC by programme controlled pull-up resistor as USB interface in the inside of CPU.Can store electrons in this high-capacity FLASH storer the unlocking cipher of lock or the authorization message of unblanking, specific mass organizations needed password, data and authentication information etc. and key user individual's when carrying out service such as commerce, finance or travelling relevant document and data.Its storage space synoptic diagram such as Figure 24 and shown in Figure 25, wherein Figure 24 is as shown in figure 12 the electronic lock storage space synoptic diagram when key of the present invention not being unblanked to authorize as yet.

Figure 21 is the flow chart of CPU among Figure 20, this flow chart is on the basis of the foregoing description two flow charts (Figure 16), A face and B face contact sets are sampled respectively and judged, which face contact 5 with the identification key bit contacts with contact in the socket, and guarantee to have only with socket in the associated circuitry work of the contacted side contact sets in contact, its program branches is similar to the foregoing description two with the course of work, does not repeat them here.

Embodiment five:

In the present embodiment, key bit 11 is the USB interface plugs with two-sided contact, the installation site of the contact 5 on A, B two sides is corresponding one by one with the installation site, contact of international standard USB interface plug respectively on the key bit 11, that is to say, the installation site of the contact 5 on its mechanical dimension and the contact surface of contact all matches with the international standard usb socket, need not to consider the directionality problem of its A face or B face when key bit 11 is inserted into electronic lock key hole or usb socket.The electronic lock that matches with present embodiment is Figure 11 and Figure 12.Present embodiment is on the basis of the foregoing description four, K6 with former cause CPU, K7, K9, contact or contact sets commutation circuit that the K10 end constitutes are replaced by the multichannel bidirectional electronic switch of the J5 port controlling of CPU with one, and two cover out-put supply on-off circuits of original A face and B face are merged into a cover by transistor V3, the out-put supply on-off circuit that the J6 end of resistance R 5 and CPU constitutes, and the other parts of circuit are all identical with the foregoing description four, like this, develop the present embodiment circuit diagram get therefrom as shown in figure 22, the flow chart of CPU as shown in figure 23 among the figure, the design concept of its program, the program branches and the course of work are all similar to the foregoing description four, do not repeat them here.

Claims

1, a kind of multifunctional intelligent key with general purpose computer plug and play mobile memory, it comprises key bit (11), is installed in the contact (5) on the key bit (11), electronic circuit device (9) that is electrically connected with contact (5) and shell (7), wherein: electronic circuit device (9) comprises and can carry out control device and the general purpose computer plug and play mobile memory device that interface work is switched to electronic lock and other equipment with general purpose computer plug and play interface.

2, a kind of multifunctional intelligent key according to claim 1 with general purpose computer plug and play mobile memory, wherein, control device comprises can discern microprocessor different communications protocol programs with blocked operation, that have nonvolatile memory, in microprocessor, stored the lockset running program related with the electronic lock communications protocol and with the related interface operation program of general purpose computer plug and play interface communication protocol.

3, a kind of multifunctional intelligent key according to claim 1 with general purpose computer plug and play mobile memory, wherein, control device comprises the power supply switch circuit that can input or output switching to power supply, and this power supply switch circuit comprises electronic switch and the power supply (10) that is subjected to microprocessor (8) I/O port controlling.

4, a kind of multifunctional intelligent key according to claim 1 with general purpose computer plug and play mobile memory, wherein, control device comprises the power supply switch circuit that can input or output switching to power supply, and what this power supply switch circuit comprised microprocessor (8) is subjected to programme controlled I/O port and power supply (10).

5, a kind of multifunctional intelligent key according to claim 1 with general purpose computer plug and play mobile memory, wherein, control device comprises the contact commutation circuit that the electric signal according to distinct interface requires the access function to the contact to switch, and this contact commutation circuit comprises the electronic switch that is subjected to microprocessor (8) I/O port controlling.

6, a kind of multifunctional intelligent key according to claim 1 with general purpose computer plug and play mobile memory, wherein, control device comprises the contact commutation circuit that the electric signal according to distinct interface requires the access function to the contact to switch, and this contact commutation circuit comprises programme controlled I/O port that is subjected to of microprocessor (8).

7, according to claim 1 or 2 or 3 or 4 or 5 or 6 described a kind of multifunctional intelligent keys with general purpose computer plug and play mobile memory, wherein, the installation site, contact (5) on the key bit (11) is corresponding with the installation site, contact of general purpose computer plug and play interface plug.

8, a kind of multifunctional intelligent key according to claim 7 with general purpose computer plug and play mobile memory, wherein, has installed respectively and corresponding two groups of contacts, the installation site, contact of general purpose computer plug and play interface plug (5) on the two sides of key bit (11).

9, a kind of multifunctional intelligent key according to claim 8 with general purpose computer plug and play mobile memory, wherein, control device comprises the contact sets commutation circuit that the wherein one group of contact (5) that can switch in the last two groups of contacts of key bit (11) (5) is inserted for work, and this contact sets commutation circuit comprises the electronic switch that is subjected to microprocessor (8) I/O port controlling.

10, a kind of multifunctional intelligent key according to claim 8 with general purpose computer plug and play mobile memory, wherein, control device comprises the contact sets commutation circuit that the wherein one group of contact (5) that can switch in the last two groups of contacts of key bit (11) (5) is inserted for work, and this contact sets commutation circuit comprises programme controlled I/O port that is subjected to of microprocessor (8).

11, according to claim 1 or 2 or 3 or 4 or 5 or 6 described a kind of multifunctional intelligent keys with general purpose computer plug and play mobile memory, wherein, the part outside surface of key bit (11) is being wrapped up in a metallic sheath (6), and all contacts (5) are exposed to the outside of this metallic sheath (6).

12, a kind of multifunctional intelligent key according to claim 11 with general purpose computer plug and play mobile memory, wherein, an end of metallic sheath (6) has the U-shaped breach, and all contacts (5) are exposed in this U-shaped breach.

13, according to claim 1 or 2 or 3 or 4 or 5 or 6 described a kind of multifunctional intelligent keys, wherein, through hole or blind hole (12) are arranged on the key bit (11) with general purpose computer plug and play mobile memory.

14, according to claim 1 or 2 or 3 or 4 or 5 or 6 described a kind of multifunctional intelligent keys with general purpose computer plug and play mobile memory, wherein, the storage space of general purpose computer plug and play mobile memory comprises dedicated encrypted district and non-encrypted area.

15, according to claim 3 or 4 described a kind of multifunctional intelligent keys with general purpose computer plug and play mobile memory, wherein, power supply (10) is a rechargeable battery.