CN115263088B - Electronic lock and access control system - Google Patents
Electronic lock and access control system Download PDFInfo
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- CN115263088B CN115263088B CN202210710793.0A CN202210710793A CN115263088B CN 115263088 B CN115263088 B CN 115263088B CN 202210710793 A CN202210710793 A CN 202210710793A CN 115263088 B CN115263088 B CN 115263088B
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- lock
- closed circuit
- key device
- closed
- circuit
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- 239000003990 capacitor Substances 0.000 claims description 10
- 230000001960 triggered effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 8
- 238000005336 cracking Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/14—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other
- E05B63/143—Arrangement of several locks, e.g. in parallel or series, on one or more wings
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0067—Monitoring
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0097—Operating or controlling locks or other fastening devices by electric or magnetic means including means for monitoring voltage, e.g. for indicating low battery state
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Structural Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
The embodiment of the invention provides an electronic lock, which comprises: a lock body arrangement, and one or more key arrangements, wherein: the lock body device includes: the multi-path non-closed circuit and the lock control system are characterized in that the types or/and parameters of the passive devices contained in different non-closed circuits are different; each key device includes: a plurality of paths of non-closed circuits, wherein the types or/and parameters of the passive devices contained in different non-closed circuits in the same key device are different from each other; the number of non-closed circuits included in different key devices is different, the number of non-closed circuits in any key device is not greater than the number of non-closed circuits in the lock body device, and each non-closed circuit in each key device is uniquely matched with one non-closed circuit in the lock body device to form a resonant circuit. The embodiment of the invention improves the safety and reliability of the electronic lock.
Description
Technical Field
The invention relates to the technical field of anti-theft locks, in particular to an electronic lock and an access control system.
Background
The anti-theft lock is widely used in the production and life of people. While the traditional mechanical anti-theft lock is easy to be unlocked by lawless persons technically based on a mechanical structure, the new generation of anti-theft lock based on NFC (Near Field Communication ) card swiping authentication also has the security problems of card copying, card authority modification and the like. The traditional lock control scheme is difficult to adapt to a flexible lock control scene, so that one lock is difficult to be used for multiple purposes, and the one-lock multipurpose equipment is often intelligent equipment with an operating system, and has the risk of being invaded and cracked by a hacker.
One implementation of the electronic lock is: the electronic type safety lock is characterized in that a lock hole is formed in a shell of the whole set of safety lock, a coding circuit of the electronic type resistance lock is embedded in a position corresponding to the lock hole, an unlocking protrusion with a shape matched with the shape of the lock hole is arranged on the annular key, and a coil resistance matched with the coding circuit is fixed in the protrusion. The control method of the anti-theft lock is that the protrusion of the key is inserted into the lock hole of the lock body, the coil resistance in the anti-theft lock enables the circuit in the lock body to generate oscillation current with fixed frequency, when the fixed frequency is consistent with the preset frequency of the lock body, the lock body is opened, otherwise, the lock body does not act. The disadvantages of this type of electronic lock are: the mode that only uses the key as coil resistance carries out circuit combination and forms the vibration, and the security is lower.
Disclosure of Invention
The embodiment of the invention provides an electronic lock, which is used for improving the safety and reliability of the electronic lock.
The technical scheme of the embodiment of the invention is realized as follows:
an electronic lock, the electronic lock comprising: a lock body arrangement, and one or more key arrangements, wherein:
the lock body device includes: a multi-way non-closed circuit and a lock control system, wherein each non-closed circuit comprises: a power supply, a current or/and voltage effective value sensor and a partial resonant circuit formed by passive devices, wherein two ends of each non-closed circuit are respectively provided with a contact; the lock control system is respectively connected with the current or/and voltage effective value sensor in each path of non-closed circuit; the types and/or parameters of the passive devices contained in different non-closed circuits are different from each other;
each key device includes: a plurality of non-closed circuits, wherein each non-closed circuit comprises: the part of the resonance circuit consists of passive devices, and two ends of each non-closed circuit are respectively provided with a contact; the types or/and parameters of the passive devices contained in different non-closed circuits in the same key device are different from each other;
the number of the non-closed circuits in any key device is not greater than the number of the non-closed circuits in the lock body device, and each non-closed circuit in each key device is uniquely matched with one non-closed circuit in the lock body device to form a resonant circuit;
when two contacts of any non-closed circuit in any key device are respectively contacted with two contacts of one non-closed circuit in a matched lock body device, the two non-closed circuits are combined into a closed circuit, and a current or/and voltage effective value sensor in the closed circuit transmits the detected current or/and voltage effective value to a lock control system;
when the lock control system detects that the current or/and voltage effective values of a plurality of closed circuits corresponding to any door lock respectively reach the door opening current value or/and the door opening voltage value of the corresponding closed circuit, the corresponding door lock is triggered to be opened.
The partial resonant circuit of passive devices in each non-closed circuit of the lock body device comprises: one or more resistors, or/and one or more capacitors, or/and one or more inductors;
the partial resonant circuit of passive devices in each non-closed circuit in the key device includes: one or more inductors, or/and one or more capacitors, or/and one or more resistors.
For any key device, the passive devices in any non-closed circuit in the key device and the power supply and the passive devices in one non-closed circuit in the lock body device matched with the passive devices in the key device meet the following conditions:
where ω is the angular frequency value of the power supply, l is the inductance value of all passive devices of the resonant circuit in the two non-closed circuits, and c is the capacitance value of all passive devices of the resonant circuit in the two non-closed circuits.
After the lock control system triggers the corresponding door lock to be opened, the method further comprises the following steps:
when the lock control system detects that the current or/and voltage effective value of any closed circuit corresponding to the door lock is lower than the preset door opening current or/and door opening voltage value of the closed circuit, triggering the door lock to lock.
For any key device, the key device is a polyhedron, and a plurality of non-closed circuit contacts of the key device are distributed on the outer surface of the polyhedron.
The lock body device is provided with a lock hole, the hollow part of the lock hole is a polyhedron, and a plurality of non-closed circuit contacts of the lock body device are distributed on the inner wall of the lock hole;
the positions of the plurality of non-closed circuit contacts of any key device and the positions of the plurality of non-closed circuit contacts of the lock body device satisfy the following conditions: when any one key device is inserted into a lock hole of a lock body device, a plurality of contacts of a non-closed circuit of the key device can be contacted with corresponding contacts of a non-closed circuit of a matched lock body device.
For any key device, the outer surface of the key device has a plurality of interference contacts, wherein each interference contact is not connected to any electrical circuit.
The lock control system is connected with the current or/and voltage effective value sensor in each path of non-closed circuit through a lead.
Each key device has a respective security level, and for any key device it contains a greater number of non-closed circuits with a corresponding security level.
A door access system comprising an electronic lock as claimed in claims 1-9, wherein each key device within the electronic lock has a respective security level, and for any key device it contains a greater number of non-closed circuits with a corresponding security level.
In the electronic lock provided by the embodiment of the invention, one lock body device can be matched with a plurality of key devices, the non-closed circuit in each key device can be matched with part or all of the non-closed circuits in the lock body device to form a resonant circuit, the types or/and parameters of passive devices contained in different non-closed circuits in the lock body device are different from each other, the types or/and parameters of the passive devices contained in different non-closed circuits in the same key device are different from each other, so that the cracking difficulty of the lock body device and the key device is increased, the safety and the reliability of the electronic lock are improved, and different key devices can be used for respectively controlling the door locks of different doors, wherein the corresponding safety level of the key device with more non-closed circuits is higher, and therefore, the control of the door locks with different safety levels can be realized by only using one lock body device.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic structural diagram of an electronic lock according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a lock body apparatus in an application example of the present invention;
fig. 3 is a schematic structural view of a key device 1 in an application example of the present invention;
fig. 4 is a schematic structural view of the key device 2 in an application example of the present invention;
FIG. 5 is a schematic view showing the appearance of a lock hole on a lock body device according to an application example of the present invention;
fig. 6 is a schematic view of the external appearance of the key device 1 in an application example of the present invention;
fig. 7 is a schematic view of the external appearance of the key device 2 in an application example of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical scheme of the invention is described in detail below by specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
Fig. 1 is a schematic structural diagram of an electronic lock according to an embodiment of the present invention, which mainly includes: a lock body arrangement 11, and one or more key arrangements 12, wherein:
the lock body device 11 includes: a multi-way non-closed circuit 111 and a lock control system 112, wherein each non-closed circuit 111 comprises: a series or parallel power supply 1111, a current or/and voltage effective value sensor 1112, and a partial resonant circuit 1113 formed by passive devices, wherein two ends of each non-closed circuit 111 are respectively provided with a contact 1114 and 1115; the lock control system 112 is connected with the current or/and voltage effective value sensor 1112 in each non-closed circuit 111 through wires respectively; the types and/or parameters of the passive devices 1113 included in the different non-closed circuits 111 are different from each other. The lock control system 112 is connected to the door lock of at least one door by a mechanical connection, respectively.
Each key device 12 includes: a plurality of non-closed circuits 121, wherein each non-closed circuit 121 comprises: a partial resonant circuit 1211 formed by passive devices, each non-closed circuit 121 having a contact 1212, 1213 at each end; the types and/or parameters of the passive devices 1211 included in the different non-closed circuits 121 in the same key device 12 are different from each other.
Wherein the number of non-closed circuits 121 included in different key devices 12 is different, the number of non-closed circuits 121 in any key device 12 is not greater than the number of non-closed circuits 111 in the lock body device 11, and each non-closed circuit 121 in each key device 12 is uniquely matched with one non-closed circuit 111 in the lock body device 11 into a resonant circuit.
For example: if the number of non-closed circuits 111 in the lock body means 11 is n (n.gtoreq.2) and the number of non-closed circuits 121 in the key means 12 is m, then m.ltoreq.n, preferably 1.ltoreq.m.ltoreq.n. At most one lock body means 11 can be matchedThe number of non-closed circuits 121 in each key device 12 is: 2. 3, 4, 5, n, it is clear that the greater the number of non-closed circuits 121 involved, the higher the security level of the key device 12, and in practice one or more key devices 12 comprising different numbers of non-closed circuits 121 may be provided for the lock body device 11 depending on the requirements of the security level.
When two contacts 1212, 1213 of any one of the non-closed circuits 121 in any one of the key devices 12 are respectively contacted with two contacts 1114, 1115 of one of the non-closed circuits 111 in the matched lock body device 11, the two non-closed circuits 121, 111 are combined into a closed circuit, and a current or/and voltage effective value sensor 1112 in the closed circuit transmits the detected current or/and voltage effective value to the lock control system 112; when the lock control system 112 detects that the current or/and voltage effective values of a plurality of closed circuits corresponding to any door lock respectively reach the door opening current value or/and voltage value of the corresponding closed circuit, the corresponding door lock is triggered to be opened.
In the above embodiment, one lock body device may be matched with a plurality of key devices, and the non-closed circuit in each key device may be matched with part or all of the non-closed circuits in the lock body device to form a resonant circuit, and the types or/and parameters of passive devices included in different non-closed circuits in the lock body device are different from each other, so that the cracking difficulty of the lock body device and the key device is increased, the security and reliability of the electronic lock are improved, and different key devices may be used to control the door locks of different doors respectively, wherein the security level corresponding to the key devices including more non-closed circuits is higher, so that the control of the door locks of different security levels can be achieved by using only one lock body device.
In an alternative embodiment, the partial resonant circuit 1113 of passive devices in each non-closed circuit 111 of the lock body device 11 includes: one or more resistors, or/and one or more capacitors, or/and one or more inductors in series or parallel;
the partial resonant circuit 1211 composed of passive devices in each of the non-closed circuits 121 in the key device 12 includes: one or more inductors, or/and one or more capacitors, or/and one or more resistors in series or parallel.
Since each non-closed circuit 121 in each key device 12 is uniquely matched with one non-closed circuit 111 in the lock body device 11 to form a resonant tank, for any key device 12, the power supply 1111 and the passive devices in the non-closed circuit 111 in the lock body device 11 to which the passive devices in any non-closed circuit 121 in the key device 12 are matched satisfy:
where ω is the angular frequency value of the power supply 1111, l is the total inductance value of all passive devices of the resonant circuit in the two non-closed circuits, and c is the total capacitance value of all passive devices of the resonant circuit in the two non-closed circuits.
In an alternative embodiment, after the lock control system 112 triggers the corresponding door lock to open, the method further includes: when the lock control system 112 detects that the current or/and voltage effective value of any closed circuit corresponding to the door lock is lower than the preset opening current or/and voltage value of the closed circuit, the door lock is triggered to be locked.
In an alternative embodiment, for any key device 12, the key device 12 is a polyhedron, and the plurality of non-closed circuit contacts 1212, 1213 of the key device 12 are distributed on the outer surface of the polyhedron;
the lock body device 11 is provided with a lock hole, the hollow part of the lock hole is a polyhedron, and the contacts 1114 and 1115 of the plurality of non-closed circuits 111 of the lock body device 11 are distributed on the inner wall of the lock hole;
the positions of the contacts 1212 and 1213 of the plurality of non-closed circuits 121 of any one key device 12 and the positions of the contacts 1114 and 1115 of the plurality of non-closed circuits 111 of the lock body device 11 satisfy the following conditions: when any one key device 12 is inserted into the lock aperture of the lock body device 11, the contacts 1212, 1213 of the plurality of non-closed circuits 121 of that key device 12 are able to make contact with the corresponding contacts 1114, 1115 of the non-closed circuits 111 of its mating lock body device 11.
In an alternative embodiment, for any key device 12, the outer surface of the key device 12 has a plurality of interference contacts, wherein each interference contact is not connected to any electrical circuit.
According to the embodiment, the interference contact is added, so that the cracking difficulty of the key device is further increased, and the reliability of the electronic lock is improved.
In an alternative embodiment, each key device 12 has a respective security level, and for any key device 12, the greater the number of non-closed circuits it contains, the greater its corresponding security level.
The embodiment of the invention also provides an access control system, which comprises the electronic lock according to any embodiment of the invention, wherein each key device in the electronic lock is provided with a security level, and the more the number of non-closed circuits is contained in any key device, the higher the corresponding security level is.
Examples of applications of the present invention are given below:
fig. 2 shows a lock body device in this application example, where the lock body device includes 4 non-closed circuits: 21. 22, 23, 24 and a lock control system, wherein:
the non-closed circuit 21 includes: the alternating current power supply 1, the inductor L1, the capacitor C1 and the current-voltage effective value sensor 1 which are connected in series or in parallel are respectively 211 and 212 at the contacts at the two ends of the circuit 21;
the non-closed circuit 22 includes: the alternating current power supply 2, the resistor R2, the inductor L2 and the current-voltage effective value sensor 2 are connected in series or in parallel, and contacts at two ends of the circuit 22 are 221 and 222 respectively;
the non-closed circuit 23 includes: the alternating current power supply 3, the capacitor C3, the resistor R3 and the current-voltage effective value sensor 3 are connected in series or in parallel, and contacts at two ends of the circuit 23 are 231 and 232 respectively;
the non-closed circuit 24 includes: the alternating current power supply 4, the resistor R4 and the current-voltage effective value sensor 4 are connected in series or in parallel, and contacts at two ends of the circuit 24 are 241 and 242 respectively.
The lock control system is respectively connected with the current and voltage effective value sensors 1-4 through leads, and simultaneously, the lock control system is respectively mechanically connected with the door lock of the door 1 and the door lock of the door 2, wherein the door lock of the door 1 corresponds to a low safety level, and the door lock of the door 2 corresponds to a high safety level.
There are two key devices in this application example: the key device 1 and the key device 2 are structured as shown in fig. 3 and 4, respectively. The key device 1 shown in fig. 3 corresponds to a low security level, and the key device 2 shown in fig. 4 corresponds to a high security level.
The key device 1 in fig. 3 comprises two non-closed circuits 41, 42 in total, wherein:
the non-closed circuit 41 only comprises a resistor R1, and contacts at two ends of the circuit 41 are 411 and 412 respectively;
the non-closed circuit 42 only comprises a capacitor C2, and contacts at two ends of the circuit 42 are 421 and 422 respectively;
the non-closed circuit 41 and the non-closed circuit 21 in fig. 2 are matched as a resonant tank 1;
the non-closed circuit 42 and the non-closed circuit 22 in fig. 2 are matched to the resonant tank 2.
The key device 2 in fig. 4 comprises in total four non-closed circuits 41, 42, 43, 44, wherein:
the non-closed circuit 41 only comprises a resistor R1, and contacts at two ends of the circuit 41 are 411 and 412 respectively;
the non-closed circuit 42 only comprises a capacitor C2, and contacts at two ends of the circuit 42 are 421 and 422 respectively;
the non-closed circuit 43 only comprises an inductor L3, and contacts at two ends of the circuit 43 are 431 and 432 respectively;
the non-closed circuit 44 comprises an inductance L4 and a capacitance C4, and contacts at two ends of the circuit 44 are 441 and 442 respectively;
the non-closed circuit 41 and the non-closed circuit 21 in fig. 2 are matched as a resonant tank 1;
the non-closed circuit 42 and the non-closed circuit 22 in fig. 2 are matched as a resonant tank 2;
the non-closed circuit 43 and the non-closed circuit 23 in fig. 2 are matched as a resonant tank 3;
the non-closed circuit 44 and the non-closed circuit 24 in fig. 2 are matched as a resonant tank 4.
Wherein the angular frequencies of the alternating current power supplies 1 to 4 are omega 1, omega 2, omega 3 and omega 4 respectively,
the lock control system pre-stores the door lock triggering condition of the door 1: the current effective value of the resonant circuit 1 is not less than the current threshold value 1 and the voltage effective value is not less than the voltage threshold value 1, the current effective value of the resonant circuit 2 is not less than the current threshold value 2 and the voltage effective value is not less than the voltage threshold value 2;
the lock control system pre-stores the door lock triggering condition of the door 2: the current effective value of the resonant circuit 1 is not less than the current threshold value 1 and the voltage effective value is not less than the voltage threshold value 1, the current effective value of the resonant circuit 2 is not less than the current threshold value 2 and the voltage effective value is not less than the voltage threshold value 2; the current effective value of the resonant circuit 3 is not less than the current threshold 3 and the voltage effective value is not less than the voltage threshold 3, and the current effective value of the resonant circuit 4 is not less than the current threshold 4 and the voltage effective value is not less than the voltage threshold 4. The door lock of the door 1 and the door lock of the door 2 can be hardware solidified into the lock control system in the production process of the electronic lock or can be dynamically configured on the lock control system through a digital chip.
When the door 1 is to be opened, the key device 1 is inserted into the lockBody apparatus, at this time: the two contacts 411, 412 of the non-closed circuit 41 of the key device 1 are respectively contacted with the two contacts 211, 212 of the non-closed circuit 21 of the lock body device, the non-closed circuit 41 is communicated with the non-closed circuit 21, the current of the alternating current power supply 1 passes through L1, C1 and R1, and the angular frequency of the alternating current power supply 1 is due toThe circuit starts to resonate, and the current and voltage effective value sensor 1 transmits the current and voltage effective values of the resonant circuit to the lock control system; at the same time, the two contacts 421, 422 of the non-closed circuit 42 of the key device 1 are respectively in contact with the two contacts 221, 222 of the non-closed circuit 22 of the lock body device, so that the non-closed circuit 42 communicates with the non-closed circuit 22, the current of the ac power supply 2 passes through R2, L2 and C2, and the angular frequency of the ac power supply 2 is->The circuit starts to resonate, and the current and voltage effective value sensor 2 transmits the current and voltage effective values of the resonant circuit to the lock control system; the lock control system finds the door lock door opening triggering condition of the door 1 is satisfied: the current effective value of the resonant circuit 1 is not smaller than the current threshold value 1 and the voltage effective value is not smaller than the voltage threshold value 1, the current effective value of the resonant circuit 2 is not smaller than the current threshold value 2 and the voltage effective value is not smaller than the voltage threshold value 2, and then the door lock of the door 1 is triggered to be opened.
Thereafter, when the key device 1 is pulled out from the lock body device, the two contacts 411, 412 of the non-closed circuit 41 of the key device 1 are disconnected from the two contacts 211, 212 of the non-closed circuit 21 of the lock body device, the resonance circuit 1 is disconnected, at this time, the current and voltage effective values transmitted to the lock control system by the current and voltage effective value sensor 1 will be lower than the current threshold value 1 and the voltage threshold value 2, and the lock control system finds that the door opening triggering condition of the door lock of the door 1 has not been satisfied, and locks the door lock of the door 1. Here, the example is merely given by way of example with the resonant circuit 1 being turned off, and in practice, the door lock of the door 1 is locked as long as the lock control system detects that one of the resonant circuits 1, 2 is turned off, that is, that the effective value of the current or/and the voltage of one of the resonant circuits 1, 2 is lower than the current threshold value or/and the voltage threshold value, the door lock triggering condition of the door lock of the door 1 is not satisfied.
When the door 2 is to be opened, the key device 2 is inserted into the lock body device, at which time: the two contacts 411, 412 of the non-closed circuit 41 of the key device 2 are respectively contacted with the two contacts 211, 212 of the non-closed circuit 21 of the lock body device, the non-closed circuit 41 is communicated with the non-closed circuit 21, the current of the alternating current power supply 1 passes through L1, C1 and R1, and the angular frequency of the alternating current power supply 1 is due toThe circuit starts to resonate, and the current and voltage effective value sensor 1 transmits the current and voltage effective values of the resonant circuit to the lock control system; at the same time, the two contacts 421, 422 of the non-closed circuit 42 of the key device 2 are respectively in contact with the two contacts 221, 222 of the non-closed circuit 22 of the lock body device, so that the non-closed circuit 42 communicates with the non-closed circuit 22, the current of the ac power supply 2 passes through R2, L2 and C2, and the angular frequency of the ac power supply 2 is->The circuit starts to resonate, and the current and voltage effective value sensor 2 transmits the current and voltage effective values of the resonant circuit to the lock control system; at the same time, the two contacts 431, 432 of the non-closed circuit 43 of the key device 2 are respectively contacted with the two contacts 231, 232 of the non-closed circuit 23 of the lock body device, the non-closed circuit 43 is communicated with the non-closed circuit 23, the current of the alternating current power supply 3 passes through C3, R3 and L3, and the angular frequency of the alternating current power supply 3 is reduced because of>The circuit starts to resonate, and the current and voltage effective value sensor 3 transmits the current and voltage effective values of the resonant circuit to the lock control system; at the same time, the two contacts 441, 442 of the non-closed circuit 44 of the key device 2 are in contact with the two contacts 241, 242 of the non-closed circuit 24 of the lock body device, respectively, so that the non-closed circuit 44 communicates with the non-closed circuit 24, the current of the ac power supply 4 passes through R4, L4 and C4, due to the angular frequency of the ac power supply 4>The circuit starts to resonate, and the current and voltage effective value sensor 4 transmits the current and voltage effective values of the resonant circuit to the lock control system; the lock control system finds the door lock door opening triggering condition of the door 2 is satisfied: the current effective value of the resonant circuit 1 is not smaller than the current threshold value 1 and the voltage effective value is not smaller than the voltage threshold value 1, the current effective value of the resonant circuit 2 is not smaller than the current threshold value 2 and the voltage effective value is not smaller than the voltage threshold value 2, the current effective value of the resonant circuit 3 is not smaller than the current threshold value 3 and the voltage effective value is not smaller than the voltage threshold value 3, the current effective value of the resonant circuit 4 is not smaller than the current threshold value 4 and the voltage effective value is not smaller than the voltage threshold value 4, and then the door lock of the door 2 is triggered to be opened.
Thereafter, when the key device 2 is pulled out from the lock body device, the two contacts 411, 412 of the non-closed circuit 41 of the key device 2 are disconnected from the two contacts 211, 212 of the non-closed circuit 21 of the lock body device, the resonance circuit 1 is disconnected, at which time the current and voltage effective values transmitted by the current and voltage effective value sensor 1 to the lock control system will be lower than the current threshold value 1 and the voltage threshold value 2, and the lock control system finds that the door opening triggering condition of the door lock of the door 2 has not been satisfied, and locks the door lock of the door 2. Here, only the resonant circuit 1 is taken as an example, and in practice, as long as the lock control system detects that one of the resonant circuits 1, 2, 3, 4 is opened, that is, that the effective value of the current or/and the voltage of one of the resonant circuits 1, 2, 3, 4 is lower than the current threshold value or/and the voltage threshold value, the door lock triggering condition of the door lock of the door 2 is not satisfied, and the door lock of the door 2 is locked.
Fig. 5 is a schematic view of the appearance of the lock hole on the lock body device in this application example, and since the lock hole is located inside the lock body device, only the lock hole is shown in detail for convenience of observation, and other parts of the lock body device are not shown in detail. As shown in fig. 5, the contacts 211 of the non-closed circuit 21 are located on the upper surface of the inner wall of the lock hole, the contacts 221, 231, 241 of the non-closed circuit 22-24 are located on the front surface of the inner wall of the lock hole, the contacts 212 of the non-closed circuit 21 are located on the lower surface of the inner wall of the lock hole (not shown in the figure), and the contacts 222, 232, 242 of the non-closed circuit 22-24 are located on the rear surface of the inner wall of the lock hole (not shown in the figure).
Fig. 6 is an external schematic view of the key device 1 in this application example, and as shown in fig. 6, the key device 1 is a rectangular parallelepiped (can be regarded as a card), wherein the contact 411 of the non-closed circuit 41 is located on the upper surface of the outer surface of the rectangular parallelepiped, the contact 421 of the non-closed circuit 42 is located on the front surface of the outer surface of the rectangular parallelepiped, the contact 412 of the non-closed circuit 41 is located on the lower surface of the outer surface of the rectangular parallelepiped (not shown in the drawing), and the contact 422 of the non-closed circuit 42 is located on the rear surface of the outer surface of the rectangular parallelepiped (not shown in the drawing). The positions of the contacts 411, 412, 421, 422 of the non-closed circuits 41 to 42 of the key device 1 and the positions of the contacts 211, 212, 221, 222 of the non-closed circuits 21 to 22 of the lock body device satisfy: when the key device 1 is inserted into the lock hole of the lock body device, the contacts 411, 412, 421, 422 of the non-closed circuits 41-42 of the key device 1 can be brought into exactly contact with the corresponding contacts 211, 212, 221, 222 of the non-closed circuits 21-22 of the lock body device.
In addition, as can be seen from fig. 6, the front surface of the key device 1 is also provided with further contacts which are not connected to any electrical circuit and which are interfering contacts in order to increase the difficulty of breaking the key device 1.
Fig. 7 is an external schematic view of the key device 2 in this application example, and as shown in fig. 7, the key device 2 is a rectangular parallelepiped, wherein the contacts 411 of the non-closed circuit 41 are located on the upper surface of the outer surface of the rectangular parallelepiped, the contacts 421, 431 and 441 of the non-closed circuit 42-44 are located on the front surface of the outer surface of the rectangular parallelepiped, the contact 412 of the non-closed circuit 41 is located on the lower surface of the outer surface of the rectangular parallelepiped (not shown in the drawing), and the contacts 422, 432, 442 of the non-closed circuit 42-44 are located on the rear surface of the outer surface of the rectangular parallelepiped (not shown in the drawing). The positions of the contacts 411, 412, 421, 422, 431, 432, 441, 442 of the non-closed circuits 41 to 44 of the key device 2 and the positions of the contacts 211, 212, 221, 222, 231, 232, 241, 242 of the non-closed circuits 21 to 24 of the lock body device satisfy: when the key device 2 is inserted into the lock hole of the lock body device, the contacts 411, 412, 421, 422, 431, 432, 441, 442 of the non-closed circuit 41-44 of the key device 2 can just touch the corresponding contacts 211, 212, 221, 222, 231, 232, 241, 242 of the non-closed circuit 21-24 of the lock body device.
In addition, as can be seen from fig. 7, the front surface of the key device 2 is also provided with further contacts which are not connected to any electrical circuit and which are interfering contacts in order to increase the difficulty of breaking the key device 2.
Those skilled in the art will appreciate that the features recited in the various embodiments of the disclosure and/or the claims may be combined in various combinations and/or combinations, even if such combinations or combinations are not explicitly recited in the present application. In particular, the features recited in the various embodiments and/or claims of the present application may be combined in various combinations and/or combinations without departing from the spirit and teachings of the application, all of which are within the scope of the disclosure.
The principles and embodiments of the present invention have been described herein with reference to specific examples, which are intended to be included herein for purposes of illustration only and not to be limiting of the invention. It will be apparent to those skilled in the art that variations can be made in the present embodiments and in the scope of the application in accordance with the spirit and principles of the present invention, and any modifications, equivalent substitutions, improvements, etc. are intended to be included within the scope of the present application.
Claims (10)
1. An electronic lock, comprising: a lock body arrangement, and a plurality of key arrangements, wherein:
the lock body device includes: a multi-way non-closed circuit and a lock control system, wherein each non-closed circuit comprises: a power supply, a current or/and voltage effective value sensor and a partial resonant circuit formed by passive devices, wherein two ends of each non-closed circuit are respectively provided with a contact; the lock control system is respectively connected with the current or/and voltage effective value sensor in each path of non-closed circuit; the types and/or parameters of the passive devices contained in different non-closed circuits are different from each other;
each key device includes: a plurality of non-closed circuits, wherein each non-closed circuit comprises: the part of the resonance circuit consists of passive devices, and two ends of each non-closed circuit are respectively provided with a contact; the types or/and parameters of the passive devices contained in different non-closed circuits in the same key device are different from each other;
the number of the non-closed circuits in any key device is not greater than the number of the non-closed circuits in the lock body device, and each non-closed circuit in each key device is uniquely matched with one non-closed circuit in the lock body device to form a resonant circuit;
when two contacts of any non-closed circuit in any key device are respectively contacted with two contacts of one non-closed circuit in a matched lock body device, the two non-closed circuits are combined into a closed circuit, and a current or/and voltage effective value sensor in the closed circuit transmits the detected current or/and voltage effective value to a lock control system;
when the lock control system detects that the current or/and voltage effective values of a plurality of closed circuits corresponding to any door lock respectively reach the door opening current value or/and the door opening voltage value of the corresponding closed circuit, the corresponding door lock is triggered to be opened.
2. The electronic lock of claim 1, wherein the portion of the resonant circuit comprised of passive devices in each non-closed circuit of the lock body means comprises: one or more resistors, or/and one or more capacitors, or/and one or more inductors;
the partial resonant circuit of passive devices in each non-closed circuit in the key device includes: one or more inductors, or/and one or more capacitors, or/and one or more resistors.
3. The electronic lock of claim 1, wherein for any key device, the passive devices in any non-closed circuit in the key device and the power and passive devices in one non-closed circuit in its matched lock body device satisfy:
where ω is the angular frequency value of the power supply, l is the inductance value of all passive devices of the resonant circuit in the two non-closed circuits, and c is the capacitance value of all passive devices of the resonant circuit in the two non-closed circuits.
4. The electronic lock of claim 1, wherein after the lock control system triggers the corresponding door lock to open, further comprising:
when the lock control system detects that the current or/and voltage effective value of any closed circuit corresponding to the door lock is lower than the preset door opening current or/and door opening voltage value of the closed circuit, triggering the door lock to lock.
5. The electronic lock of claim 1, wherein for any key device, the key device is a polyhedron, and the plurality of non-closed circuit contacts of the key device are distributed on the outer surface of the polyhedron.
6. The electronic lock according to claim 5, wherein the lock body device is provided with a lock hole, the hollow part of the lock hole is a polyhedron, and a plurality of non-closed circuit contacts of the lock body device are distributed on the inner wall of the lock hole;
the positions of the plurality of non-closed circuit contacts of any key device and the positions of the plurality of non-closed circuit contacts of the lock body device satisfy the following conditions: when any one key device is inserted into a lock hole of a lock body device, a plurality of contacts of a non-closed circuit of the key device can be contacted with corresponding contacts of a non-closed circuit of a matched lock body device.
7. The electronic lock of claim 5, wherein for any key device, the external surface of the key device has a plurality of interference contacts, wherein each interference contact is not connected to any electrical circuit.
8. The electronic lock according to claim 1, wherein the lock control system is connected with the current or/and voltage effective value sensor in each non-closed circuit through a wire respectively.
9. The electronic lock of claim 1, wherein each key device has a respective security level, and wherein for any key device the greater the number of non-closed circuits it contains, the greater its corresponding security level.
10. An access control system comprising an electronic lock as claimed in claims 1-9, wherein each key device within the electronic lock has a respective security level, and for any key device it contains a greater number of non-closed circuits with a corresponding security level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210710793.0A CN115263088B (en) | 2022-06-22 | 2022-06-22 | Electronic lock and access control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210710793.0A CN115263088B (en) | 2022-06-22 | 2022-06-22 | Electronic lock and access control system |
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| Publication Number | Publication Date |
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| CN115263088A CN115263088A (en) | 2022-11-01 |
| CN115263088B true CN115263088B (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210710793.0A Active CN115263088B (en) | 2022-06-22 | 2022-06-22 | Electronic lock and access control system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB164085A (en) * | 1920-02-20 | 1921-05-20 | Hermann Knispel | Improvements in and relating to electrically controlled fastenings for doors and thelike |
| US3660831A (en) * | 1969-04-02 | 1972-05-02 | Maezelectronics S N C Di Lucia | Electronic antitheft device using an electronic safety lock |
| US4697171A (en) * | 1985-03-25 | 1987-09-29 | Dsung Precision Company | Electronic lock and key |
| WO2000034605A1 (en) * | 1998-12-08 | 2000-06-15 | Microchip Technology Incorporated | A radio frequency identification (rfid) security device |
| JP2011174268A (en) * | 2010-02-24 | 2011-09-08 | Miwa Lock Co Ltd | Electric lock system |
| CN109267828A (en) * | 2018-12-07 | 2019-01-25 | 湖北科技学院 | A kind of one-to-many electron key and matched theftproof lock |
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2022
- 2022-06-22 CN CN202210710793.0A patent/CN115263088B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB164085A (en) * | 1920-02-20 | 1921-05-20 | Hermann Knispel | Improvements in and relating to electrically controlled fastenings for doors and thelike |
| US3660831A (en) * | 1969-04-02 | 1972-05-02 | Maezelectronics S N C Di Lucia | Electronic antitheft device using an electronic safety lock |
| US4697171A (en) * | 1985-03-25 | 1987-09-29 | Dsung Precision Company | Electronic lock and key |
| WO2000034605A1 (en) * | 1998-12-08 | 2000-06-15 | Microchip Technology Incorporated | A radio frequency identification (rfid) security device |
| JP2011174268A (en) * | 2010-02-24 | 2011-09-08 | Miwa Lock Co Ltd | Electric lock system |
| CN109267828A (en) * | 2018-12-07 | 2019-01-25 | 湖北科技学院 | A kind of one-to-many electron key and matched theftproof lock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115263088A (en) | 2022-11-01 |
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