JPH03100284A - Electronic locking device - Google Patents

Abstract

PURPOSE:To reduce the manufacturing cost and improve the versatile use performance by comparing a lock releasing signal memorized onto a lock body and a lock releasing signal memorized onto a lock body by a comparing means and carrying out locking and lock releasing operations by a control means when the both signals accord. CONSTITUTION:A lock body 1 which is equipped with a memory means 4 which memorizes the prescribed lock releasing information and an I/O means which reads out and writes-in the lock releasing information from outside is provided. Further, a lock body 2 which is equipped with a memory means 11 for memorizing the prescribed lock releasing information, comparing means 12 for comparing the lock releasing information and the lock releasing information of the memory means 4 of the lock body 1, control means 13 for controlling the locking and lock releasing on the basis of the result, and an I/O means for reading out the lock releasing information from the lock body 1 is provided. The lock body 1 is installed onto the lock body 2, and the lock releasing information memorized in the memory means 4 of the lock body 1 is read out through the both I/O means and compared with the lock releasing information memorized in the memory means 11 of the lock body 2, and when the both information accord, locking or lock releasing is carried out by a control means 13.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a locking device used for residential doors, automobile doors, and other various parts that require locking, and particularly relates to locking devices that are used for residential doors, automobile doors, and other parts that require locking. This invention relates to an electronic lock device that can be unlocked.

(Prior Art) As a conventional lock device, the one shown in FIGS. 5 and 6, for example, is known. This lock device is made by forming irregularities 102 of a predetermined shape on one or both sides of a $100 key brake) by machining such as cutting.
When the key plate 101 of oo is inserted into the cylinder of a lock (not shown) and the unevenness 102 of the key plate 101 matches the cylinder of the lock, the rotor of the cylinder rotates to lock or unlock the lock. ) was configured to do so.

However, in the case of the above-mentioned conventional armor.

Since the structure is such that locking or unlocking is performed by a combination of the unevenness 102 of the key plate 101 and the lock cylinder, the unevenness 102 etc. of the key plate 101 are designed to prevent illegal unlocking by a third party. Even if it becomes complicated,
Since there are limits due to the accuracy of machining, etc., there has been a problem that there are limits to generalization.

Further, in the conventional locking device described above, the key plate 10
Since the unlocking information is displayed directly on the uneven surface 102 of 1, the unlocking information of 1l100 can be recognized very easily, so if you lose the key 100, etc.
Another problem was that the unlocking information could be easily imitated by a third party.

In place of such traditional armor devices, in recent years Wlloo
There are also electronic locking devices in which materials with different physical properties such as magnetic permeability and dielectric constant are placed in predetermined positions, making it impossible to identify the key in appearance, and in which the unlocking information is highly complex. At present, various proposals have been made and many are actually used.

[The invention tries to solve f! However, in the conventional electronic lock device mentioned above, materials with different physical properties such as magnetic permeability and dielectric constant are placed in predetermined positions on the key plate of the key, so Since it is necessary to detect substances having different physical properties arranged on the key plate of the key, the detection mechanism of the lock cylinder becomes complicated, resulting in an increase in cost.

This invention was devised in view of the current situation, and its purpose is to provide an electronic lock device that can be mass-produced at relatively low cost and that can easily create duplicate keys. This is what we are trying to provide.

(Means for Solving Problem!!) In order to achieve the E2 objective, the electronic lock device according to the present invention includes a storage means that stores predetermined unlocking information, and a storage means that stores the unlocking information of this storage means from outside. A lock body having an I/O means for reading or writing, a storage means storing predetermined unlocking information, and unlocking information of the storage means and unlocking information of the storage means of the lock body. The lock body is characterized by comprising a comparison means for comparison, a control means for controlling locking/unlocking based on the comparison result of the comparison means, and an I/O means for reading unlocking information from the lock body. It is something.

In this invention, the storage means includes 1, for example, P
Memory such as ROM or EFROM is used.

In addition, the I/O means listed in L is, for example, constituted by a lock body and an electric contact exposed outside the lock body.
This invention is not limited to this,
It may also be an optical electronic lock device consisting of a light emitting element and a light receiving element that optically exchange information.

(Function) Therefore, in the electronic lock device according to the present invention, the lock body is attached to the lock body when locking or unlocking.

The unlocking information stored in the storage means of the lock body is read out through both I/O means.

At that time, the unlocking information stored in the storage means of the lock body in an encrypted manner is read out, and the unlocking information read from the lock body is compared with the unlocking information stored in the storage means of the lock body. The locking or unlocking can be performed by the control means only if they match each other.

〔Example〕

Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

As shown in FIGS. 1 to 3, the lock body 1 is formed of metal, engineering plastic, or the like into a predetermined key shape.

The grip part 2 of this lock body l has a FROM as a storage means that stores predetermined unlocking information after encrypting it as necessary.
A memory 4 consisting of an EFROM and the like is built-in.

In addition, the key plate 5 of the lock body l has an I on the side.
Electrical contact 71.7□ consisting of gold electrode etc. as /O means
... is formed, and this electrical contact? ,,7.・・・
・ is the lead wire sl, a2 embedded in the lock body 1...
It is connected to the memory 4 via .

On the other hand, as shown in FIG. 1, the lock body 8 has electrical contacts 9, 9□, etc. made of gold electrodes, etc. as means for reading unlocking information from the memory 4 of the lock body 1. are formed to be exposed to the outside at positions corresponding to the electrical contacts 7°, 7□, etc. of the lock body l.

Further, inside the lock body 8, a power supply section 10 is provided that supplies electric power to the lock body 1 when the lock body 8 is attached to the lock body 8.

Furthermore, within the main body B of one tablet, there is a memory 11 consisting of FROM, EPROM, etc. as a storage means that stores predetermined unlocking information, and the unlocking information stored in this memory 11 and the electrical contacts 7 □, 72 . . . , and 91, 9, . . . A determination circuit 12 is provided as a comparison means for comparing the unlocking information on the lock main body 1 side read out through 91, 9, .

Further, in the lock body B, if the unlock information of the lock body L and the lock body 8 match each other as a result of comparison by the 1 judgment circuit 12, a signal is sent to a drive circuit (not shown) to operate the unlocking armor. Drive motors, solenoids, etc. to lock or unlock! 2! h
A control circuit 13 is provided as a control means for controlling the operation.

FIG. 4 shows the s1 main body 1 and a writing device 14 for writing arbitrary unlocking information into the memory 4 of the lock main body 1.

Writing with! 14 is an electrical contact 15. made of a gold electrode or the like as an I/O means for writing predetermined unlocking information into the memory 4 of the W main body l. ．． 15 Ω is the electrical contact point 7 of the lock body 1. ,? , . . . are formed to be exposed to the outside at positions corresponding to .

Also, inside the writing device z14, the lock body 1 is inserted into the writing device 1.
Power supply part 1 that supplies power to the lock body 1 when attached to 4.
6 is provided. Further, in the writing device M14, an electric contact 7. ．． 7. ... and 15+, 15g'', etc., the R/W control I circuit 17 relays writing or reading of unlock information.
(7) R/Wf! Lock body 1 via 1l11 circuit 17
A control circuit 18 for writing or calling desired unlocking information in the memory 4 is provided.

Further, the writing device 14 is connected to an input section 19 that includes a keyboard, a liquid crystal display panel, etc., and is used to input desired unlocking information.

In the above configuration, the electronic lock device according to this embodiment
The locking or unlocking operation is performed in the following manner.

That is, in order to perform a locking or unlocking operation, the lock body 1 must be moved from the lock body 8 to the lock body 8. , and bring the electrical contacts 71.7x'' of the lock body 1 into contact with the electrical contacts 94.9□ of the lock body 8.

Then, from the power supply section 10 of the lock body 8 to the electrical contact 7 + ,
Power is supplied to the memory 4 in the lock body 1 through the terminals 72 ``'' and 91.9□, and the memory 4 is activated to read out the unlocking information that has been encrypted and recorded.

This read unlocking information on the lock body L side is determined by the 1 judgment circuit 1.
2 is compared with the unlocking information stored in the memory 11 on the lock body 8 side, and if the two match, the 2 judgment circuit 12
A negative signal is output from the control circuit 13 to the control circuit 13.

Thereby, the control circuit 13 sends a signal to a drive circuit (not shown) to drive a motor, a solenoid, etc., and performs a locking or unlocking operation of the lock body 8.

In addition, whether the locking operation or unlocking operation is performed by the lock body l.

Insert the lock body l into the cylinder (not shown) of the lock body 8,
It can be determined by the direction in which the lock body 1 is rotated, or the lock body 8 can be configured to determine this by simply inserting the lock body 1.

In addition, when newly storing or rewriting unlocking information in the memory 4 of the lock body 1, as shown in FIG. The control circuit 1 inputs the desired unlocking information from the keyboard (not shown).
B. The memory 4 of the lock body l via the R/W control circuit 17.
to store desired unlocking information.

Therefore, in the electronic lock device according to this embodiment, since the lock body l only needs to have a built-in memory 4 made of a semiconductor chip, mass production is possible and manufacturing can be performed at low cost. I can do it. Furthermore, in the memory 4 inside the lock body l,
Since the unlocking information can be easily rewritten as necessary, it does not have the disadvantage of being impossible to change as with conventional mechanically processed keys, and is excellent in versatility.

(Effects of 315 Akira) Since this invention is configured as described above, mass production is possible at relatively low cost, and moreover, unlocking information can be changed without changing the end body. It has many excellent effects, such as being able to easily create duplicate keys, and being highly versatile.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the configuration of an electronic lock device according to an embodiment of the present invention, Fig. MS2 is a front view of the end body, Fig. 3 is a plan view of the end main body, and Fig. 4 shows a writing device. Block Diagram,
FIGS. 5 and 6 are a front view and a plan view of a conventional key. (Explanation of symbols)

Claims (1)

[Claims] A key body having a storage means storing predetermined unlocking information, an I/O means for externally reading or writing the unlocking information in the storage means, and a storage means storing predetermined unlocking information. a comparison means for comparing unlocking information in the storage means with unlocking information in the storage means of the key body; and a control means for controlling locking and unlocking based on the comparison result of the comparison means;
An electronic lock device comprising: a lock body having an I/O means for reading unlocking information from the key body.