CN101285358A - Method of detecting lock bumping - Google Patents
Method of detecting lock bumping Download PDFInfo
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- CN101285358A CN101285358A CNA2008101003285A CN200810100328A CN101285358A CN 101285358 A CN101285358 A CN 101285358A CN A2008101003285 A CNA2008101003285 A CN A2008101003285A CN 200810100328 A CN200810100328 A CN 200810100328A CN 101285358 A CN101285358 A CN 101285358A
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Abstract
A method of detecting an attempted lock bumping and providing a notification that an attempted lock bumping has occurred. A lock bumping detection device is placed on or in a door or door jamb near the lock. The device includes a sensor which senses energy and generates a signal that is processed to determine if the energy is a result of a lock bumping procedure. The sensed energy is analyzed to generate a received energy signature, which is compared to a stored energy signature with respected to qualifying and disqualifying rules. If the result of the comparison is positive, this indicates that the energy sensed is a result of an attempted lock bumping procedure. In the event that it is determined that the energy is a result of an attempted lock bumping procedure, then an alarm signal may be transmitted to an associated alarm system.
Description
The cross reference of related application
The application requires in the priority of the co pending provisional application sequence number 60/922,596 of submission on April 9th, 2007.
Technical field
The present invention relates to security system, relate in particular to the security system device, whether this security system device detects has attempted the lock of entrance gate has been carried out spring lock (lock bumping) process.
Background technology
Recently, the information of relevant spring lock as a kind of picking lock (lock picking) technology has been published in medium and relevant data is being provided on the internet.This technology is the secret that the locksmith guards rigidly for many years, and the issue of using dog chart to lock everyone this information of (pin tumbler lock) is all constituted safety problem, and described dog chart lock is the lock of opening with metal key.The low-down technical level of this technical requirements and anyone can both use.This technology comprises hits the key one or many and the key that clashes simultaneously applies slight revolving force with hitting that key (bump key) inserts in the lock and knocking with wooden club (mallet) (or similar device).Hitting key is made by usual key or key billet.Each groove of key billet can both be easy to by to dropping minimum groove level, and the flank of key (shoulder) is frustrated and become to make key further to be promoted forward.How have many websites to illustrate to the user on the internet makes and key is hit in use.
Because the cause of the make of the lock in 90 percent the family, so can work to the bump of lock.These locks that are referred to as the dog chart lock comprise a series of laminations (spring loaded stack) that spring is housed.Each lamination has two pins (pin), key pin (key pin) and drive pin (driver pin), and they are overlayed top of each other.This key pin is the base pins of the key that is inserted into of contact, and drive pin is to be positioned at the key pin top and pin that pushed away by spring downwards.When the real key of lock when being inserted into, all key pins with different length all by this key upwards promote with key in the amount on level terms of groove.This makes drive pin in each lamination with the amount on level terms of the groove in spring pushing (push against) and the key.For long key pin, the level of groove is just lower; And for short key pin, the level of groove so that when key is inserted into, forms shear line (shearline) under the situation about being aligned for all laminations in the space between key pin and the drive pin with regard to higher.In case produced shear line, tapered end (cylinder) can be rotated and lock and be opened.When the key that does not have key or mistake is in lock, spring pushing drive pin, thus can make shear line misalignment (misaligned) because of the size difference of key pin, this stops tapered end to be rotated.In order to implement spring lock, the key that hits with minimum groove level is inserted in the lock and by a pin and is removed.The user knocks the rear portion of key, key bump key pin and make drive pin kick spring (being similar to each other the ball in the billiard ball of collision).This action causes temporary transient space between key pin and drive pin, this space produces shear line in of short duration moment, and if the user at this rotational lock head moment, so just will open lock.
Spring lock is more even worse than typical house breaking (house break-in), and this is that insurance company can advocate that the house owner does not shut up the door carefully because when not having the evidence of house breaking.As a result, insurance company does not just compensate house owner's loss.At present, the unique countermeasure to spring lock is that lock is changed to combination lock (combination lock) or magnetic force lock.Such selection is expensive and may is not that the house owner is desirable.
Warning system can prevent to force open the door, and this is that alarm will be sounded because when not importing correct safety code at once after the invador is opening.Yet, for the warning system that does not have warning system, forget to enable them, perhaps having the house owner of the warning system that can be forbidden automatically along with the rotation of the tapered end of locking, spring lock is exactly an important problem.
Therefore the purpose of this invention is to provide a kind of warning device that is used to detect the generation of the spring lock process of attempting.
Another object of the present invention provides a kind of after the generation that detects the spring lock process, and the warning device of the indication of reporting to the police is provided.
Another object of the present invention provides a kind of record (register) and/or the warning device of spring lock process has been attempted in indication.
Last another object of the present invention provides a kind of can communication with warning system to signal the warning device that the spring lock process has taken place warning system.
Summary of the invention
The present invention is a kind of detection spring lock process and the method that taken place to grantee (authorized person) (for example, householder or corporate boss or central station operator) notice spring lock process.This method comprise the spring lock checkout gear is placed on that door is gone up or door in the vicinity of door lock, or be placed on door lock vicinity on the door jamb or in the door jamb.The spring lock checkout gear comprises for example piezo-electric effect sensor of the sensor of the sonic transducer of sensing acoustic energy (for example microphone), shock-sensitive transducer (shock sensitive transducer) (for example MEM accelerometer) or detection earthquake transmission (seismic transmission).Whether be exaggerated and handle with the energy determining to sense from the signal of sensor is the result of the spring lock process of attempting.If having determined the energy that senses is the result of the spring lock process of attempting, alarm signal can be sent to the warning system that is associated so.No matter whether success of spring lock process can transmit alarm signal, promptly if by spring lock open lock attempt triggering is reported to the police.
For whether the energy determining to sense is the result of spring lock process, to analyze the energy mark (energy signature) that receives to produce from the signal of sensor.Then with respect to eligible rule (qualifying rule) with do not conform to the set of conditional plan (disqualifying rule), energy mark that receives and the energy mark of being stored are compared.If result relatively is sure (promptly satisfying eligible rule), this shows that the energy that senses is the result of the spring lock process of attempting.On the contrary, if result relatively is (promptly do not satisfy eligible rule and/or satisfy and do not conform to conditional plan) negating, this shows that the energy that senses is not the result of the spring lock process of attempting.For the energy mark of determining to receive, for example, treatment circuit is sought sequence of events, and wherein timing between detected frequency and the energy in the special frequency band have unique pattern.For the present invention, the energy mark that receives is produced by the result as following process: key is hit in invador's bang, hit key collision key pin, key pin impact drives pin, and the rotation of last tapered end (or it can comprise the tapered end that hits key flank collision lock, and/or hit key arrive range).If detect the spring lock process by labeled analysis, safety device will be lighted (illustrate) LED indicator and/or transmit alarm signal to the warning system that is associated so.
The initial energy mark that obtains to store by following steps and eligible and do not conform to the rule of condition, locking simulation spring lock process, the energy that sends from lock of sensing is then analyzed the energy that senses then with the produce power mark, then stored energy mark in memory.This is used as benchmark then, and the energy mark of follow-up reception will compare with it to determine whether to have attempted the spring lock process.
The interchangeable embodiment of this safety device can realize by using simulation electronic rather than digital processing.In this embodiment, a plurality of narrow band filters, comparator circuit and timing and delay circuit detect above-mentioned sequence of events.
Description of drawings
Fig. 1 is the flow chart of method of the present invention.
Fig. 2 is the diagrammatic sketch of safety device of the present invention.
Fig. 3 is the flow chart by the processing of the processor execution of safety device.
Fig. 4 is the diagrammatic sketch of interchangeable embodiment of the present invention.
Fig. 5 illustrates with respect to eligible and do not conform to the analysis that conditional plan carries out the mark of the mark that receives and storage.
The specific embodiment
Now with reference to accompanying drawing the preferred embodiments of the present invention are described.Fig. 1 illustrates the flow chart of method of the present invention.In step 10, with sensor be placed in the door or door jamb on or in lock near position.Sensor for example can be sonic transducer, MEM accelerometer or the piezo-electric effect sensor such as microphone.The sensor sensing is from the energy (step 20) of the physical event such as acoustic energy, vibration etc.Sensor becomes the signal of telecommunication with the power conversion that senses, and whether the signal of telecommunication is processed then is the result of the spring lock process of attempting with the energy determining to sense.Signal from sensor at first is exaggerated (step 30) by the broadband low gain amplifier.Then in step 40 by narrow-band digital or analog filter to carrying out filtering through amplifying signal.In step 50, to the detection of the spring lock process of attempting with reference to as the eligible rule set of following further explanation and conform to the conditional plan collection and do not carry out.This can by as digital processing in preferred embodiment described below or by realizing at analog comparator circuit described below equally.At last, in step 60, if detected the spring lock incident according to rule analysis, so just light LED and/or automatically alarm signal is sent to security system associated, indication has detected the spring lock incident.Replacedly, can store detected spring lock incident, and and if only if security system just can be transmitted the signal that this transmits detected incident when inquiring (poll) safety device 100, this is known in the prior art.
For execution in step 20 to 60, can use the spring lock shown in Fig. 2 to detect safety device 100.Safety device 100 comprises and is used for sensing from the sensor 120 of the energy of its surrounding environment be coupled to result's sensor, that in order to the energy determining to sense whether be the spring lock process of attempting treatment circuit.The energy mark (signature) that the energy that this treatment circuit senses analysis receives with generation.Then, processor 160 is with respect to the eligible rule that obtains from memory 180 with do not conform to the energy mark that conditional plan is analyzed reception.If with respect to one or more predetermined eligible rules, the energy mark of reception with stored the energy mark suitable, so just determine to have detected the spring lock process.Yet,, so just determine not detect the spring lock process if the energy mark that receives is not complementary with one or more predetermined eligible rules basically.And, if with respect to one or more predetermined conditional plans that do not conform to, the energy mark of reception with stored the energy mark suitable, so just determine also not have the spring lock process.Do not conform to conditional plan by use, even without eliminating the possibility that yet greatly reduces false alarm fully.
Produce eligible rule and do not conform to conditional plan by empirical analysis and simulate real world condition.For example, door can have letter drop, and this letter drop is furnished with can produce the sound that can be detected by sensor and the swing metal baffle (panel) of vibration.This device can not indicated mistakenly and be attempted to have the spring lock process when moving in order to ensure the baffle plate when letter drop, when the baffle plate of letter drop is opened, analyzes the signal that is produced by sensor.This analysis produces and does not conform to conditional plan, and the described conditional plan that do not conform to is stored to be used for reference in the future.If processor after determine that provide with this from the signal of sensor not conform to the mark that conditional plan is complementary, so just drawing this incident is not the spring lock process.Can from known be not that the similar real world scenarios of spring lock process produces other and do not conform to conditional plan.Equally, can carry out the spring lock process, wherein can analyze follow-up incident with respect to these eligible rules to produce eligible rule.
This treatment circuit comprises the amplifier (amp) 140 that is used to amplify from the signal of sensor 120, be used to handle processor 160 through amplifying signal, be used to store the data that are used for processing signals and mark, eligible rule and do not conform to conditional plan and memory 180 and the LED indicator 200 and the data transmitter 220 (these two is all indicated and has detected the spring lock process) of algorithm.Step by processor 160 processing signals has been shown among Fig. 3.Processor 160 at first adopts A/D converter with analog signal figureization in step 240.The filtration of step 280 is performed the corresponding energy of energy (that is its mark) that produces with searching meeting and the bang of hitting key.In order to determine whether incident is spring lock, just uses the feature extraction algorithm of step 300 when detecting energy in step 280.This algorithm is sought the mark that can produce under the situation that spring lock takes place.This mark may be by one or more following generation the in the following incident: hit key bang key pin, key pin impact drives pin and/or the rotation of tapered end.Whether the incident Detection Algorithm of step 320 determines whether to have taken place spring lock (that is whether the characteristics of signals that, receives is identical with previously stored mark basically) by the feature of determining to extract in predetermined boundary in step 300.If feature is (mark relatively is sure) in predetermined threshold, so just in step 340 record spring lock incident and in step 360 by lighting LED and/or transmitting signal and indicate the spring lock incident.
Can determine that specific filter frequencies, feature extraction component and event detection standard are to produce aforesaid eligible rule and not conform to conditional plan by door and the lock of following the tracks of and analyze various reality.That is,, locking the acoustic energy that simulation spring lock process and sensing send from lock in order to produce (being baseline) mark of storage.As mentioned above, then, the acoustic energy that senses is analyzed to produce mark, then with described marker stores in memory 180 to be used for subsequent analysis.
Fig. 4 illustrates the interchangeable embodiment that can be used to detect the spring lock process.This embodiment uses Analog Electronics Technique rather than digital processing.Safety device 100 (A) comprises acoustic transducer 120, amplifier 140, a plurality of wave filter 400 and 420, a plurality of testing circuit 440 and 460, logical AND circuit 480 and LED indicator 200.In this embodiment, filter circuit 400 and 420 is the narrow-band pass filters that are in selected frequency, and testing circuit 440 and 460 comprises threshold value comparator circuit and presumable time delay circuit.
Fig. 5 illustrates the labeled analysis that carries out with not conforming to conditional plan with respect to eligible in more detail.As the part of layoutprocedure, carry out the spring lock process to produce signal 510 by setter (or in factory).Like that this signal 510 is handled as previously described, then it is stored in the memory 180 as the mark of storing 520.During using this device, produce signal 530 by sensor, and such mark 540 that produces reception as described earlier.The mark 520 that obtains storage from memory compares with the mark 540 that is used for and receive.And, eligible rule and do not conform to conditional plan 560 and be used as the basis that the mark 520 of storage and the mark 540 that receives are compared.According to this analysis, will determine whether to detect the spring lock process and whether should foregoingly send chimes of doom like that.
It is apparent that for those skilled in the art, can make amendment to specific embodiment as described herein within the spirit and scope of the present invention.For example the safety device among Fig. 4 100 (A) can only comprise a filter circuit 400 and a testing circuit 440, and perhaps this safety device can comprise flanking filter circuit and testing circuit.Sensor 120 can be the sensor of any energy that can sensing be sent by the motion of the tapered end of the motion of the bang of key, lock pin and lock.Other energy component of all right spring lock of sensing except these of this sensor.
Claims (17)
1, a kind of method that detects the bump of the lock on the opposite house comprises:
A) sensor is placed in lock on the door near;
B) energy that sends from lock of sensing; And
Whether c) handle the energy that senses is the result of spring lock process with definite energy.
2, the method for claim 1 further comprises step: when determined energy be the spring lock process as a result the time, transmit alarm signal to security system associated.
3, the method for claim 1, the energy that wherein said processing senses is to determine that whether energy is that the result of spring lock process comprises:
I) analyze the energy sense to produce the energy mark that receives;
Ii), the energy mark of reception and the energy mark of storage are compared with respect to predefined rule set; And
If iii) Bi Jiao result is sure, show that so energy is the result of spring lock process.
4, method as claimed in claim 3, wherein predefined rule comprises eligible rule, if wherein satisfy any eligible rule, has so just detected the spring lock process.
5, method as claimed in claim 3, wherein predefined rule comprise and do not conform to conditional plan, if wherein satisfy any conditional plan that do not conform to, so just do not detect the spring lock process.
6, method as claimed in claim 3, wherein the energy mark that obtains to store by following steps:
Locking simulation spring lock process;
The energy that sensing sends from lock;
The energy that analysis senses is with the produce power mark; With
The stored energy mark.
7, the method for claim 1 is wherein handled and is carried out in numeric field basically.
8, the method for claim 1 is wherein handled and is carried out in analog domain basically.
9, a kind of spring lock checkout gear comprises:
A) be used for the sensor of sensing energy; And
B) treatment circuit is coupled to sensor and is suitable for determining whether energy is the result of spring lock process.
10, spring lock checkout gear as claimed in claim 9 also comprises conveyer, be used for when treatment circuit determine acoustic energy be the spring lock process as a result the time transmit alarm signal to security system associated.
11, spring lock checkout gear as claimed in claim 9, wherein treatment circuit determines by following steps whether energy is the result of spring lock process:
I) analyze the energy sense to produce the energy mark that receives;
Ii), the energy mark of reception and the energy mark of storage are compared with respect to predefined rule set; And
If iii) Bi Jiao result is sure, show that so energy is the result of spring lock process.
12, spring lock checkout gear as claimed in claim 11, wherein predefined rule comprises eligible rule, if wherein satisfy any eligible rule, has so just detected the spring lock process.
13, spring lock checkout gear as claimed in claim 11, wherein predefined rule comprise and do not conform to conditional plan, if wherein satisfy any conditional plan that do not conform to, so just do not detect the spring lock process.
14, spring lock checkout gear as claimed in claim 11 also comprises memory, is used to store the energy mark of this storage, and wherein obtains the energy mark of this storage by following steps:
Locking simulation spring lock process;
The energy that sensing sends from lock;
The energy that analysis senses is with the produce power mark; With
Stored energy mark in memory.
15, spring lock checkout gear as claimed in claim 9, wherein sensor is a sonic transducer.
16, spring lock checkout gear as claimed in claim 9, wherein sensor is an accelerometer.
17, spring lock checkout gear as claimed in claim 9, wherein sensor is a piezoelectric transducer.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US92259607P | 2007-04-09 | 2007-04-09 | |
| US60/922596 | 2007-04-09 | ||
| US12/042491 | 2008-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101285358A true CN101285358A (en) | 2008-10-15 |
Family
ID=39826442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101003285A Pending CN101285358A (en) | 2007-04-09 | 2008-04-09 | Method of detecting lock bumping |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101285358A (en) |
| CA (1) | CA2628410A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105096435A (en) * | 2015-09-24 | 2015-11-25 | 黄影 | Exhibition safety control and information acquisition and release device and control method and method application thereof |
| CN105184925A (en) * | 2015-08-31 | 2015-12-23 | 北京奇虎科技有限公司 | Door lock monitoring equipment and door lock monitoring method |
-
2008
- 2008-04-03 CA CA 2628410 patent/CA2628410A1/en not_active Abandoned
- 2008-04-09 CN CNA2008101003285A patent/CN101285358A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105184925A (en) * | 2015-08-31 | 2015-12-23 | 北京奇虎科技有限公司 | Door lock monitoring equipment and door lock monitoring method |
| CN105184925B (en) * | 2015-08-31 | 2017-10-20 | 北京奇虎科技有限公司 | door lock monitoring device and door lock monitoring method |
| CN105096435A (en) * | 2015-09-24 | 2015-11-25 | 黄影 | Exhibition safety control and information acquisition and release device and control method and method application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2628410A1 (en) | 2008-10-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20081015 |