JPS63233176A - Electronic lock apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a wireless electronic lock device that can be used for controlling entry and exit of a computer room, hotel, etc., for example.

(Prior Art) Conventional locking devices are broadly classified into contact type and non-contact type. Contact type devices include conventional mechanical locks, magnetic cards, and thin metal strips with holes for identification. On the other hand, in the non-contact type, multiple resonators are embedded in a card-like resin case, and an arbitrary number is formed by the combination of the resonant frequencies, and this is identified by radio waves to form an electronic lock device. There is.

By the way, when comparing contact and non-contact locking devices,
For example, if you consider the situation where you open and close a lock while holding an umbrella or carrying luggage in your hand, with a non-contact type, you can open and close the lock simply by getting close to the antenna that transmits and receives radio waves, so of course it is a non-contact type. Contact type is better. However, in conventional non-contact electronic lock devices, the identification number is set using the resonant frequency, so once the resonator is embedded, the lock number cannot be changed. In other words, if the lock is lost or broken, it takes time and effort to recreate it.

(Problems to be Solved by the Invention) As described above, the conventional non-contact type electronic lock device using radio waves has a problem in that the identification information cannot be changed and re-registration thereof is time-consuming.

The present invention was made to solve the problem described in item 1, and an object of the present invention is to provide an electronic lock device that is a non-contact type using radio waves and in which identification information can be written or rewritten.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the object described in -, the electronic lock device according to the present invention provides a locking device that is located near a lock portion that is locked or unlocked by an external control signal. a transmitting means provided for transmitting electromagnetic waves; an information medium having at least first and second identification information recorded thereon and transmitting the identification information in response to the electromagnetic waves transmitted from the transmitting means; a receiving means for receiving the identification information received by the receiving means; an identification means for reading the identification information received by the receiving means and comparing it with pre-registered information to detect whether or not the image information matches; a control means for outputting the control signal to lock or unlock the lock when the image information matches; and a control means for locking or unlocking the lock when the image information matches; and a writing means for writing or rewriting the second identification information in certain cases.

(Function) When the electronic lock device according to the configuration described in -4- approaches the information medium on which the first and second identification information are recorded in advance or the lock, the electronic lock device automatically reads and registers both identification information from the information medium. It compares the information with the information and, if it matches, issues a control signal to lock or unlock the lock. Writing or rewriting of the second identification information recorded on the information medium is performed when the first identification information matches predetermined information.

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

Figure 1 shows its configuration, where 11 is the lock, 12 is the I
D identification device, 13 is an ID card, 14 is an information processing device,
15 is an information storage device, and 1B is an information registration device. ID
The identification device 12 includes an antenna 121, a transmitter 122, a receiver 123, and a microcomputer 124.
1.

The ID card 13 has the following circuit device built into the card, and has a structure similar to that described in, for example, Japanese Patent Application No. 58-24878. Figure 2 shows its configuration. That is, this ID card 13 has a built-in receiving antenna 131, and this receiving antenna 131 receives external information data, for example, a signal modulated with a binary information signal such as an ISO code or an ASCII code. The antenna 131 receives the
32 and a demodulator 133 extract binary information. The extracted binary information is introduced into decoder 134.

The decoder 134 decodes the instruction contents of a series of data sent from the demodulator 133. Note that the contents of the instruction include writing data to and reading data from the storage device 136, erasing stored data, and the like.

The information decoded by the decoder 134 is supplied to the controller 185. The controller 135 writes, reads, or erases data contents in the memory 136 according to the instruction contents decoded by the decoder 134.

The card-specific binary information read from the memory 136 is converted into a modulated wave in a medium wave band, for example, by a modulator 37. This modulated wave is amplified by a transmitter 138 and sent out from a transmitting antenna 139. In addition, 13a is a card built-in battery, and +3b is an electronic switch for controlling the operation of each block.

For the ID card 13 having the above configuration, the ID identification device 1
2, a transmitter 122 generates binary information corresponding to read instruction data according to a command from a microcomputer 124, and continuously transmits this information through an antenna 121, for example, once every 50 milliseconds. When the ID card holder approaches the lock 11, the ID card 13 is instructed to send the stored data. The stored information sent from the ID card 13 is received by the receiver 123 through the antenna 121 and sent to the information processing device 14 through the microcomputer 124. This information processing device 14 collates the received ID card information with the registration information stored in advance in the information storage device 15, and checks the presence or absence of matching information in the microcomputer 1.
24. Microcomputer 12
4 receives the presence or absence of matching information, and when there is matching information, sends a control signal to the lock section 11 to lock or unlock the lock section.

In addition, in the normal operation mode, the door is unlocked when there is matching information, but on the contrary, it is normally left unlocked and locked when there is matching information. It can also be operated as follows.

The information registration device 16 writes or rewrites necessary information on the ID card 13, and sends a signal corresponding to the identification information for writing or rewriting to the ID card 13, thereby storing information in the memory device 136 in the card. Write your identification information,
At the same time, the identification information is stored as registration information in the information storage device 15 through the information processing device 14. As a result, the ID card 13 is transferred to the ID identification device 12.
It is possible to verify identification information through

Identification information can be written or rewritten in a non-contact manner using radio waves. For example, the ID card 13 can be written or rewritten every time the lock is locked or unlocked a predetermined number of times, or irregularly, while the person entering and leaving the room is carrying the ID card 13. This can be done automatically by exchanging signals between the identification device 13 and the identification device 12. Of course, it is also possible to directly set the ID card in the information registration device 16 and perform writing and rewriting.

Here, first and second identification information are stored in the ID card 13 in advance, and when the first identification information is predetermined information at the time of rewriting, the second identification information is written. Or rewrite it, and check the first
The second identification information and the second identification information both match the registered information. This makes it possible to prevent unauthorized duplication and the like.

That is, if a registered ID card 13 is carried by a person entering and leaving the room, when the person carrying the ID card approaches the electronic lock, the identification of the ID card 13 is automatically verified and the lock part 11 is unlocked.
When the ID card 13 no longer responds due to distance, the lock section 11 can be automatically locked.
It is also possible to rewrite the identification information. In addition, the person entering and leaving the room is I.
The D card I3 may be brought close to the antenna 121 of the ID identification device 12, or may be left in the pocket.

In the electronic lock device having the configuration described above, the means for using the electronic lock device will be explained below. Specific application examples include room keys for hotels, condominiums, villas, etc., access control for computer rooms, etc., and opening and closing of locks for membership cards, safes, post office boxes, etc.; An example of use for room exit management is shown below.

First, install the lock part 11 on the door of each guest room 5, and close it =
9 = ID identification device 12 is provided nearby. The information processing device 14, information storage device 15, and information registration device 16 are installed at the front desk (or management office). The customer asks for the room number at the front desk and receives an ID card 13 for that guest room. As a result, as long as the customer carries the ID card 13,
The lock part 11 can be automatically unlocked by approaching the door of a designated guest room, and can be locked by simply moving away from the door.

In this case, since the information processing device 14 at the front desk can ascertain whether the lock section 11 of each guest room is locked or unlocked, it is useful for finding intruders, and it is also possible to keep a history of door openings and closings. In addition, if the ID identification device 12 is provided with a function to detect the half-locked state of lock part 1 and generate an alarm,
Even more effective.

The information electronically written into the ID card 13 is, for example, as follows.

User number Room number Expiration date Scrambled data Here, the user number is used to distinguish it from another system (e.g. another hotel ID card).
, 0-, and cannot be accessed by the user's (user side, such as a hotel) registration device. In other words, the user number is built into the registration device for each user, and cannot be changed by the user.

If a registration device attempts to write to another user's ID card, the registration device processes this as an abnormality and issues an alarm. The same contents of the room number, expiration date, and scramble data are stored as registered information in the information storage device corresponding to the corresponding identification device. This information can be registered and changed for each identification device. When the ID card approaches the antenna, the information inside the ID card is read by the information processing device, and the user number, room number, expiration date, and scrambled data are all compared with data registered in the information storage device in advance. and only when they match, an unlock command is issued to the electronic door lock. In the above data, the user number, room number, and expiration date are the first identification information, and the scrambled data is the second identification information.

In such a device, a high degree of safety can be ensured by rewriting the scramble code on an irregular basis. for example,
If you want to change the scrambled data every time you check out at Ishichiru, or if you want to reissue your ID card when you lose it, for example, keep the room number and expiration date the same, but change the scrambled data. Issued and registered in the information storage device. As a result,
Only the most recent ID card is always valid, and it can also automatically detect if someone tries to unlock the door with a lost one.

As another example, at a gate commonly used by residents, such as the front entrance of a condominium, the first identification information of the ID card may be used as a common code, and the second identification information may be used as a code indicating the expiration date. , which also helps prevent intruders. Also, when a room is used by several people, if you add a suffix to the identification code and register it, you can enter the room no matter who's card is used, but the history of whose card was used to unlock the room will be kept. You can also take it. Adding a recitation number will further increase credibility.

In the above embodiment, the readout command is always issued from the ID identification device 12, but if a sensor is separately provided to detect the approach of a person entering or leaving the room, and the readout command is issued in accordance with the output of this sensor, Leads to power savings. Also, I
If the D identification device 12 is provided with a memory for registration, identification verification can be performed by a microcomputer, so it goes without saying that it does not necessarily need to be connected to an information processing device or the like. The information medium is not limited to an ID card, and any medium that can transmit and receive information without contact can also be used.

[Effects of the Invention] As described above, according to the present invention, it is possible to provide an electronic lock device that is a non-contact type using radio waves and in which identification information can be written or rewritten.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of an electronic lock device according to the present invention, and FIG. 2 is a block diagram showing the configuration of an ID card of the same embodiment. If...Lock part, 12...ID identification device, 121...
・Antenna, 122... Transmitter, 123... Receiver, 124... Microcomputer, 13... ID
card, 131... receiving antenna, 132... receiver, 183... demodulator, 134... decoder, 13
5...Controller, 13[+...Storage device, 137...
Modulator, 138... Transmitter, 139... Transmission antenna, 13a... Card built-in battery, 13b... Electronic switch, 14... Information processing device, 15... Information storage device, 16. ...Information registration device. Applicant's agent Patent attorney Takehiko Suzue = 14 =

Claims (1)

[Claims] a transmitting means for transmitting electromagnetic waves that is provided near a lock that is locked or unlocked by an external control signal; and a transmitting means that records at least first and second identification information and that responds to the electromagnetic waves transmitted from the transmitting means. An information medium for transmitting the identification information of the lever, a receiving means for receiving the identification information transmitted from the information medium, and a receiving means that reads the identification information received by the receiving means and compares it with pre-registered information. an identification means for detecting the presence or absence of a match; a control means connected to the identification means and outputting the control signal to lock or unlock the lock when the two pieces of information match; and writing means for writing or rewriting the second identification information when the first identification information is predetermined information.