CN203947896U

CN203947896U - Hall safety lock

Info

Publication number: CN203947896U
Application number: CN201420388069.1U
Authority: CN
Inventors: 贺珍妮; 季诚响; 张思傲; 孟扬; 刘斌; 蒋应邦
Original assignee: Academy of Armored Forces Engineering of PLA
Current assignee: Academy of Armored Forces Engineering of PLA
Priority date: 2014-07-15
Filing date: 2014-07-15
Publication date: 2014-11-19
Anticipated expiration: 2024-07-15

Abstract

The safety of tradition mechanical lock is general, and the burglar who understands professional unlocking technique utilizes the slender body such as pin, thin wire just to fiddle with a little and can open easily, to protecting the article that importance is higher totally unfavorable.The utility model is a kind of Hall safety lock, utilizes Hall element to add " password " for lock, and in conjunction with voltage inductance should, the technology such as RFID, can significantly strengthen the safety of lock, and the advantage such as it is strong to have antijamming capability, and reliability is high, easy to use.

Description

Hall safety lock

Technical field

The utility model relates to a kind of Hall safety lock based on Hall effect, especially a kind of safety lock based on Hall element, magnetic pole, password identifier structure.

Background technology

Traditional mechanical lock structure; although it is very complicated that structure can design; but due to technical deficiency first in the sky; lawless person still can be by comparatively simple method; the physics that carries out lock construction cracks; the burglar who for example understands professional unlocking technique utilizes the slender body such as pin, thin wire just to fiddle with a little and can open easily, totally unfavorable to the article that protection importance is higher.

Summary of the invention

The technical problem that the utility model solves is: overcome the some shortcomings of traditional locks structure in prior art, provide a kind of by Hall element, the structures such as password identification circuit form the device of safety lock.

For realizing above object, described safety lock structure comprises the key containing magnetic pole, key inserts behind the lock chamber of lock body, the variation of the Hall element induction magnetic pole in lock chamber, and the Hall voltage that passes through to produce is via voltage amplifier circuit, convert low and high level (i.e. 0,1 data signal) to and deliver to password identification circuit and complete again the identification of password by voltage comparator, judge whether opening door lock.

This apparatus structure is comparatively simple, and cost is relatively low, and the advantage such as it is strong to have antijamming capability, and reliability is high, easy to use, can be applied in the higher technical field of lock safety.

Brief description of the drawings

Fig. 1 is the utility model Hall safety lock principle schematic;

Reference numeral:

1. key

2. magnetic pole

3. lock body

4. Hall element

5. voltage amplifier circuit

6. voltage comparator

7. password identification circuit

8. lock body controller

9. alarm

10. lock chamber

11. projection modules

12. piezoelectric ceramics sensing elements

13.RFID chip

14.RFID sensing element

Detailed description of the invention

[the first embodiment]

Concrete structure as shown in Figure 1, Hall safety lock comprises key (1), on it, possesses magnetic pole (2), on lock body (3), possesses the lock chamber (10) of inserting for key (1), when key (1) inserts behind lock chamber (10) completely, the magnetic field that magnetic pole (2) generates can make the Hall element (4) being arranged on lock chamber (10) in lock body (3) produce positive and negative different Hall voltage signal, and carry out voltage signal amplification via the voltage amplifier circuit (5) in lock body (3) accessory structure, and then convert low and high level (0 to by voltage comparator (6) again, 1 data signal) after, signal is delivered to password identification circuit (7) and completes the identification of password, after identification is correct, lock body controller (8) opening door lock, when alarm after identification error (9) is reported to the police.

[the second embodiment]

Concrete structure still as shown in Figure 1, Hall safety lock comprises key (1), on it, possess magnetic pole (2) and projection module (11), on lock body, possesses the lock chamber (10) of inserting for key (1), when key (1) inserts behind lock chamber (10) completely, the magnetic field that magnetic pole (2) generates can make the Hall element (4) being arranged on lock chamber (10) in lock body (3) produce positive and negative different Hall voltage, meanwhile, projection module (11) and the piezoelectric ceramics sensing element (12) being arranged in lock chamber (10), generate piezoelectric signal, Hall voltage signal and piezoelectric signal carry out voltage signal amplification via the voltage amplifier circuit (5) in lock body (3) accessory structure, and then convert low and high level (0 to by voltage comparator (6) again, 1 data signal) after, signal is delivered to password identification circuit (7) and completes the identification of password, after identification is correct, lock body controller (8) opening door lock, when alarm after identification error (9) is reported to the police.

[the 3rd embodiment]

Concrete structure still as shown in Figure 1, safety lock comprises key (1), on it, possess magnetic pole (2) and RFID chip (13), on lock body, possesses the lock chamber (10) of inserting for key (1), when key (1) inserts behind lock chamber (10) completely, the magnetic field that magnetic pole (2) generates can make the Hall element (4) being arranged on lock chamber (10) in lock body (3) produce positive and negative different Hall voltage, meanwhile, RFID chip (13) and the RFID sensing element (14) being arranged in lock chamber (10), generate the RFID signal of telecommunication, Hall voltage signal carries out voltage signal amplification via the voltage amplifier circuit (5) in lock body (3) accessory structure, and then convert low and high level (0 to by voltage comparator (6) again, 1 data signal) after, Hall voltage data signal and the RFID signal of telecommunication are delivered to password identification circuit (7) and complete the identification of password, after identification is correct, lock body controller (8) opening door lock, when alarm after identification error (9) is reported to the police.

Be noted that above-mentioned embodiment is only preferably embodiment of the utility model, those skilled in the art also can make other variation in the utility model spirit.The variation that these are done according to the utility model spirit, all should be within the utility model scope required for protection.

Claims

1. a Hall safety lock, it is characterized in that on key (1), possessing magnetic pole (2), when key (1) inserts behind the lock chamber (10) of lock body (3), the magnetic field that magnetic pole (2) generates makes the Hall element (4) on lock body (3) produce positive and negative different Hall voltage, the Hall voltage producing is via voltage amplifier circuit (5), convert low and high level (0 to by voltage comparator (6) again, 1 data signal) deliver to password identification circuit (7) and complete the identification of password, identify correct rear locking controller (8) opening door lock, alarm after identification error (9) is reported to the police.

2. Hall safety lock as claimed in claim 1, it is characterized in that key (1) is provided with projection module (11), the inside of lock body (3) is provided with piezoelectric ceramics induction installation (12), when key (1) inserts behind the lock chamber (10) of lock body (3), piezo electric module (11) generates piezoelectric current with piezoelectricity induction module (12), and password identification circuit (7) comprehensively judges the unlatching of lock in conjunction with the induced-current of piezoelectric ceramics.

3. Hall safety lock as claimed in claim 1, it is characterized in that key (1) is provided with RFID chip (13), lock body (3) is provided with RFID sensing element (14), when key (1) inserts behind the lock chamber (10) of lock body (3), the RFID signal of telecommunication is identified and generated to RFID sensing element (14) to RFID chip (13), and password identification circuit (6) comprehensively judges the unlatching of lock in conjunction with the RFID signal of telecommunication.