DE10065503A1 - An electronically coded security cylinder lock enables multi user operation by means of a programming unit which encodes the system for operation by other keys - Google Patents

Abstract

The coded lock (1) is operated by a coded key (4) which may be programmed with the corresponding code by a programming unit (3) which is inserted into the lock, the key is inserted into the unit and a PIN entered to change the coding to suit.

Description

The present invention relates to locking systems, the mecha African coupling elements of locks and keys interchangeable unit Lich, and only the electronically correct coding the key access to a lock and this key for other locks, which are coded differently, can also get access.

Locking systems are known from practice today, which are mainly in force vehicles can be used as an ignition lock and one for all vehicles Make a uniform mechanical key / lock coupling mechanism show nism. Such a key can therefore be mechanically inserted into any ignition lock of vehicles of the same brand. The key only carries an electronic code that is recognized by the lock and is correct is checked. Does the electronic key code match the electronic one? Lock code, the electrically locked cylinder of the ignition lock is released ben and the cylinder can be used by the user via the inserted key mechanically twisted.

Each key / lock combination is firmly associated with one by the manufacturer provided electronic code and so the key from the user only be used for the corresponding lock and not for another Locked on another vehicle of the same brand, even if the user personally authorized for this other vehicle and the key mecha niche can be introduced. He needs another key sel, which is mechanically identical, but is coded electronically differently.

Locking systems, on the other hand, are known from domestic technology, which one Allow keys to operate differently coded locks.

So an apartment key in an apartment building can only do that speaking apartment lock, but like all other apartment keys, too operate the front door lock and the janitor's master key can be used ben the front door lock also successfully open all apartment locks.

The mechanical coding of these house locking systems is particularly disadvantageous. A key / lock can usually only be assigned by a specialist. This assignment is lengthy, complex, expensive and subsequent changes may be impossible. Therefore, keys of a mechanical locking system from house 1 are usually not suitable for use in locking systems from house 2 to house X. The result is that a user of multiple locks and multiple locking systems also has a variety of keys that he must carry with him in order to have the appropriate code carrier available if necessary.

Here the o. G. Vehicle locking system better properties. The disadvantage is here that only one lock is assigned to a key, that the assignment done by the manufacturer and not left to the user and that the Castle must have its own circuit, which in the vehicle  the vehicle battery is guaranteed, but in the house technology too considerable Problems arise because the installation of a power supply is complex, expensive and may be impossible and the use of an electronically coded Castle may not be worth it. Even the previous electronic coding of vehicle locking systems is unsuitable for multiple assignments.

The object of the invention is therefore an electronically coded and to show mechanically standardized locking system in which, freely by the Users are given a key at the same time differently coded locks can be shown and / or a castle different keys at the same time seln can be assigned, each key to a different key may have different access rights to locks, and in which the lock does not need its own power supply and the user in the ide alfall now only has a single key to which it is entitled Being able to open and close locks.

These objects are now achieved in that the portable key carries a power source (battery) with it, its own Ensures energy supply and that of the castle and that the creation and Allocation of common electronic codes between and to the castle and The key is made by the user via a user programming device and the Electronic code is designed as a set of four blocks, the blocks mutually queried and checked between the key and lock and this form of coding is not mandatory, but is advantageous. All locks involved have a standardized key holder and all the keys involved assign a standardized counter-mechanism Key lock of the lock, both partners have their own integrated circuit that is protected against unauthorized access by a PIN which stores data and creates logical links, as well as signals and Output and read information.

The lock and key have a data and energy transfer Interface to the other partner, use all system components the same code logic on an electronic basis and the necessary code pro As mentioned, programming is done by the user himself with the help of a pro gramming device, which allows authorized users to easily access it on site allows, for any key / lock pairing, this pairing indi create, modify, and visually distinctive electronic code this record, consisting of four individual blocks, in record lists of Store key and lock storage. This record is from both Partners, if the key and lock are used in the usual way, automatically determined in the respective record memory and blockwise and mutually checked. In the event of approval, the examination is continued and at the end of the examination release process, which unlocks the lock.

There are many advantages to this approach. Because the user Bring the required energy to the lock with the help of his key  no further power supply to the lock, which is particularly the introduction electrical locks favored in home technology. The cost of first installation, Retrofitting and use of remote and rarely used systems conditions are kept low and availability is increased. The use of small NEN batteries must be made possible by the lock concept, which is only smaller Unlock energies and the subsequent movements of the Lock cylinder mechanically left to the user.

The electronically coded and standardized components allow opening Construction of a locking system network, the cross-system z. B. in vehicles and could lead to a unit key system in building technology.

Ideally, each user would then only need one physically the key assigned to it, which can be used with the aid of the programming device unlocked for a desired lock by the authorized users themselves becomes.

This creates the possibility that there is an existing at any place at any time Appropriate lock type approved for a key or can be locked without using the locking device or the key make a mechanical change. An undesirable user now can be deleted simply by deleting its authorization in the lock memory and effectively deprived of its authorization without a key reclaimed, or the lock would have to be exchanged, or the risk of anything of unknown key copies.

The one individually agreed between the lock and key, to be mutually queried code block, consisting of blocks, offers a secure option unauthorized scanning of access data using other key and To prevent lock devices and to securely electronically code the lock ren.

The access PIN also makes it difficult to generate unauthorized keys pien by unauthorized persons. Electronic storage of codes on the other hand, however, also allows a desired quick and problem-free approach production of key copies by authorized personnel.

The electronically stored coding also allows a large number authorized key per lock and a large number of available Locks per key.

Because the key is to be assigned to the user, the lock access must be restricted bende no longer have expensive keys for the user and the Users do not constantly purchase new keys to do so.

An exemplary embodiment of this system is described below using a electrically locked double cylinder mortise lock with optional use bar mechanically coded emergency key and electronically coded as standard system user key in cooperation with a programming device wrote.  

Fig. 1: Sequence and decision plan of the code check

Fig. 2: schematic representation of the components involved in this locking system Kom poneneten during the programming phase

Fig. 3: schematic representation of the components involved in this locking system Kom poneneten during normal operation

In Fig. 2, the mechanically and electronically coded, electrically locked and lockable by a screw in the door leaf double lock cylinder 1 can be seen, which in its movable cylinder part 1.1 . has a continuous keyway, the standardized recordings at both ends 1.2 . for associated standardized electronically coded key couplings 3.1 . and 4.1. has and in the inner area provides a receptacle for a mechanically individually coded key 2 for this lock.

This mechanically coded key 2 is only used in emergencies in which the electrical unlocking device fails and then enables a lock actuation, as has been common and known up to now. This key 2 can normally be kept elsewhere and does not have to be carried by the user. After the emergency key cross-section is not symmetrical, but the key 2 from both sides into the cylinder 1.1 . a must be feasible, he has no otherwise usual, firmly connected handle. In FIG. 2, but it detects an emergency handle attachable 2.1., Which facilitates a mechanical opening and closing of lock 1 in an emergency. The cross sections of the recordings of the electronically coded keys 1.2 . are dimensioned so that the mechanically coded key 2 can be passed through them.

The programming device 3 has the necessary for the lock / key programming logic circuits or software, a normalized key holder 3.2 . for correspondingly standardized electronically coded keys 4 and a correspondingly standardized coupling (key) 3.1 protruding directly from the housing. On the upper side there is a multi-function alphanumeric keyboard 3.4 . with special function keys and a display 3.3 ..

The electronically coded key 4 also has a correspondingly standardized coupling 4.1 . and, like the programming device 3 , has its own energy supply from batteries.

The data and energy interfaces are located directly on the coupling organs 1.2 ., 3.1., 3.2. and 4.1. and enable direct transmission of energy and data in electrical or electronic form between the key and lock or the programming device.

Key 4 and lock 1 each have a correspondingly designed logic module, which can read in and out data, which stores data, carries out logical comparison operations and can output control signals.

To unlock the lock for the key, it is now necessary to program the programming device 3 with its key coupling 3.1 . in the lock receptacle 1.2 . to introduce fully constantly. The key 4 with its clutch 4.1 . also in the admission 3.2 . of the programming device 3 fully introduced.

Each lock and key store is protected against unauthorized access by an individual PIN. The PIN of the lock 1 is only known to those who are authorized to issue lock authorization. The correct PIN is entered into the programming device 3 using the keyboard 3.4 . Entered and sent to the logic module by establishing the connection of the programming device with the lock and checked there for correctness.

By entering the correct key PIN, which is only known to the authorized key user, into the programming device 3 via the keyboard 3.4 . and by establishing the connection between the programming device 3 and the logic module of the key 4 , the key PIN is sent to the key 4 and checked there for correctness.

If a test is negative, the respective connections must be for reasons the fight against data manipulation is only mechanically decoupled again before a new attempt can be made after pairing again.

If both tests are successful, both components can do one Lock / key pairing individually identifying unique code ren, which is stored with the same name in the lock or key memory. The coding takes place in the dual system. 1 means a voltage pulse and 0 no voltage pulse. A complete set always consists of four completed its blocks of 1 + X digits. Missing digits are interpreted as 0. The The first block position is a pure control pulse, which is always 1 and the beginning of the block indicates. Each additional position has a defined time window. Occurs in this If there is no pulse, the position is interpreted as 0. Because of the Manufacturer defined block number and the selected time window is the Block duration specified. The individual blocks come together from places set, self-contained identifiers.

The "lock identifier I" is a number characterizing the lock, which, for. B. is fixed by the manufacturer. It is the first block and in the code set is with all keys that have access to this lock received immediately available.

The "key identifier II" is a number identifying the key, which, for. B. is fixed by the manufacturer. It is in the sentence as a second block and is this applies to all locks that give this key access authorization have immediately available.

"Control code III" and "Release code IV" are freely agreed combinations of numbers tions that are transferred from the lock or key to the be sent to other partners for comparison.

After the successful PIN entries explained above, the compilation the code set is carried out fully automatically by the programming device  and also automatically afterwards with the descriptive data to the memory handed over lock and key.

The code is created by the "lock identifier I" from the program Miergerät is read from the lock, the "key identifier II" from the Key is read out and a random genes present in the programming device rator generated the other two block numbers

The descriptive data, such as B. Name and / or address etc. can 3.4 . of the programming device 3 created by the user and on the display 3.3 . be read. They are automatically added to the automatically generated code set.

This self-created data allows the creation of a ver for the user constant and helpful database and allow it, even without direct Contact to the respective lock or key, the relevant object in the To find the sentence database, changes in the respective authorization to make copies of individual sentences or the entire sentence file len, to transmit the data remotely etc., as long as only one partner (lock or Key) is available and can be read out. So it remains the programming device is user-independent because it gets its data from the respective Memory of the available device.

If the sentence has been generated, a comment has been entered and the sentence transferred to the respective memory, the release procedure has ended and the key 4 , like the programming device 3, can be taken from the respective recordings 1.2 . or 3.2. be removed. The electronic modules are then automatically locked again via their PIN. The lock and key are without power.

If the lock 1 is now to be actuated using the unlocked key 4 , the standardized coupling element 4.1 is guided . of the key 4 in the normed recording 1.2 . of the lock 1 completely and thereby activates the key. Via the interfaces located on the coupling elements, the key 4 ensures the lock 1 with power and thereby activates the release process at the lock 1 .

This now sends its lock identifier, i.e. the first block of the code set, to the key 4 via the interface. The key determines the record of its database, which has this identifier as the first block, and then sends its identifier, which is present there in the second block, to the lock, which then determines the corresponding data record in its database. The comparison and sending processes can be seen in the decision plan in Fig. 1 from level 1 .

It should be noted that in the case of the "END" result of the logical check, the key 4 must have been removed from the lock 1 before a new code comparison, and in the case of the "LOCK" result of the logical check, a code comparison even after the key has been inserted again and recognized identifier is denied.

Allow this procedure and the block-by-block construction of the code set the greatest possible security against unauthorized scanning of access data with the help of other key and lock devices.

If the code comparison is positive, the lock control switches a short power current from the battery of the key to the coils of the lock, which is then released. Due to the constructive design of the lock, it is kept open mechanically for as long as the key 4 in the receptacle 1.2 . remains plugged in.

The lock cylinder 1.1 . can now by the user via the key 4 , the coupling 4.1 . and recording 1.2 . be rotated as usual and control another lock mechanism in the usual way. The construction of the lock 1 used here also prevents the user from removing the key as long as the cylinder 1.1 . is twisted out of the starting position. If the key 4 is in the starting position from the recording 1.2 . subtracted, the lock mechanism locks the lock 1 automatically and a complete user process is completed.

Claims (7)

1. Unlimited expandable locking system with chip-based, freely programmable, electronically coded keys, which for chip comparison and mechanical actuation are chip-based, freely programmable, electronically coded and electrically locked locks and their mechanical coupling elements according to one standardized plug / receptacle system are designed with any interchangeability, with all keys acting as plugs and all locks acting as sockets and interfaces for data and electrical energy exchanges available on their coupling elements, characterized in that the power supply to the key and lock is provided by the mobile key page is guaranteed and each key that is to be given access to a lock and each lock that is to be assigned a key uses a user programmer to use a common code with the other partner n bart, whereby the programming device acts as a manager between the lock, key and user, enables inputs and can create an electronic code that individually identifies this key / lock pair, which is stored in the respective memory of the key and lock and with the subsequent direct coupling of the key and The lock is automatically queried and checked from both sides and, in the event of approval, triggers a release pulse for the logical lock circuit, which then unlocks the lock and, in the event of refusal, refuses to open the lock. 2. Locking system according to claim 1, characterized in that the used Code forms a code set with four blocks, the block length of which is 1 + x Digits is and the first digit is always a control pulse, and the first Block contains a character string characterizing the lock, the second block contains a string identifying the key and the third and fourth block each different, free ver between lock and key contains accepted strings and the respective blocks alternately after sent from the lock to the key and from the key to the lock and the block signal received there with that in the respective Memory associated block signal is compared and due to egg a true / false result a decision regarding further block ver same, a release of the lock, an abortion of the comparison process, or a lock / key lock on the other partner is hit. 3. Locking system according to claim 1 to 2, characterized in that the Rei order of lock and key in the code and / or the block query has swept.   4. Locking system according to claim 1 to 3, characterized in that all keys sel as a socket and all locks are designed as plugs. 5. Locking system according to claim 1 to 4, characterized in that the pro programming device has interfaces for keys and lock, which are not can be found directly on the housing of the device, but in connection with it stand. 6. Locking system according to claim 1 to 5, characterized in that keys or locks that cannot be freely programmed are and / or contain codes specified by the provider and / or against Code changes are secured. 7. Locking system according to claim 1 to 6, characterized in that the Spei The key and / or lock medium is not a chip.