JPH04161681A - Lock system - Google Patents

Abstract

PURPOSE:To secure high safety by providing a function of a lock and a key in a mechanical structure and an ID recognizing ability. CONSTITUTION:When a key 1 is inserted into a key 2 and rotated, an IC contact point part 4 exposed to the side surface of the key 1 is made contact with an IC contact point reception part 5 built in the key 2 and electrically connected to it. Thereafter, an IC memory part 3 of the key 1 is made electrically made contact with an IC lock control part 6 of the key 2, power source is supplied to the memory part 3 from the control part 6 and it comes to be possible to carry out data read-put and write-in motions through a signal conductor. Next, an IC code is read out from the memory part 3 by the control part 6 in accordance with a demand of a host control part 7, and the result is informed to the host control part 7. Subsequently, the host control part 7 judges whether an ID of the key is effective or not, and if it is effective, unlocks a lock system.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lock system, and particularly to a lock system that requires a high degree of safety.

[Conventional technology]

Lock systems based on mechanical structures have been used in various fields. Additionally, a recognition function based on personal identification data such as an electronic lock system based on a D card may be used as a lock function.

[Problem to be solved by the invention]

In the above-mentioned conventional lock system, with a lock having a mechanical structure, it is possible to mechanically recognize a key that fits the lock, but it is not possible to recognize who has used that key. Furthermore, since the key can be easily duplicated, it cannot be used as an ID recognition function. Furthermore, in electronic lock systems using D cards, their functions depend only on the data on the cards, and the card shapes and data storage methods are almost uniform in each field. Therefore, it is relatively easy to copy or counterfeit cards, and it is difficult to guarantee security.

[Means to solve the problem]

The lock system of the present invention has a lock and key function based on a mechanical structure, and an ID recognition function using an IC.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIGS. 1(a) to 1(c) are configuration diagrams showing one embodiment of the present invention. 1 is a key, 2 is a lock, 3 is an IC storage section built into the key 1 and includes a CPU and memory, 4 is an IC contact section connected to the IC storage section 3 and exposed on the end surface of the lock 1, 5
6 is an IC contact receiver that is built into the IC lock and receives the contacts of the IC contact unit 4; 6 is an IC lock control unit that is connected from the IC contact receiver 5 and reads and writes data in the IC storage unit 3; 7; is a host control unit that communicates with the IC lock control unit 6. Next, the operation of this embodiment will be explained.

First, #11 and lock 2 have a mechanical structure that functions as a lock and key. Also, key 1 and lock 2
are compatible with each other, and the key 1 can be inserted into the lock 2 and rotated. When the key 1 is inserted into the lock 2 and rotated, the IC contact part 4 exposed on the end face of the key 1 comes into contact with the IC contact holder part 5 built into the key 2, and electrically Connected.

On the other hand, since the IC contact receiver is connected to the IC lock control section 6, the power supply and data signal lines are connected to the IC contact receiver in the section 5.
From the IC contact section 4, ! ! The IC storage unit 3 of 1 is the lock 2
It is electrically connected to the IC lock control section 6 of. Therefore, I.C.
Power is supplied to the storage section 3 from the IC lock control section 6, and data reading and writing operations are possible via the signal line.

The IC lock control unit 6 is connected to the upper control unit 7 through a cable, and the IC lock control unit 6 is connected to the IC storage unit 3 when the key 1 is inserted into the lock 2 and rotated by the upper control unit 7. Notify that. The upper control unit 7 has an IC storage unit 3 and an I
After confirming the connection with the C-lock control section 6, it requests the 10-lock control section 6 to read the ID code from the IC storage section 3. The IC lock control section 6 reads the ID code from the IC storage section 3 in accordance with a request from the upper control section 7 and notifies the upper control section 7 of the information. Then, the upper control unit 7
C Analyzes the information from lock control unit e and checks whether the ID of key 1 is valid. If the ID is valid, key 1 is determined to be valid for the main lock system, and the lock system It will be unlocked. Furthermore, if the ID is invalid, it is determined that the key 1 is invalid for the main lock system, and the lock system will not be unlocked.

Thereafter, if necessary, the higher-level control section 7
The 10-tablet control section 6 writes the data from the upper control section 7 into the IC storage section 3. That is, the lock system of the present invention checks the mechanical structure and shape of the key 1 and the lock 2 to confirm their function as a lock and key, and the ID of the IC storage unit 3 built into the key 1 to determine their validity. It also has an ID recognition function.

〔Effect of the invention〕

As explained above, according to the present invention, the mechanical structure of the lock and key function and the ID recognition function of the IC are developed, and even if each function alone is insufficient for safety, these functions can be improved. By combining these functions, a high level of safety can be ensured.

[Brief explanation of drawings]

FIGS. 1(a) to 1(C) are configuration diagrams showing one embodiment of the present invention. 1...Key, 2...Lock, 3...IC storage unit, 4...
・IC contact part, 5...IC contact holder part, 6...IC
Lock control section, 7... Upper control section.

Claims (1)

[Claims] Lock and key functions due to mechanical structure and I
A lock system characterized by being equipped with a D recognition function.