KR930005700B1 - Microcomputer controlled locking system - Google Patents

Abstract

A locking system which comprises a microcomputer controlled lock (10) with multiple level keying, i.e. multiple keys (34) having different functions in the locking system. A key reader (38), for example punch card or magnetic type, reads key code into the microcomputer. A read/write memory (217) has a predetermined number of assigned key codes stored therein and a read-only memory (215) has a control program stored therein for control of the microcomputer. An electrically controlled actuator (42) for the locking means is coupled with an unlocking output of the microcomputer. The control program comprises a main program and a plurality of subroutines each stored at a different location in the read-only memory. A function table (219) has a number of pointers each of which points to the memory address of one of the subroutines. The number of pointers in the function table (219) is equal to the number of locations in the key code memory (217). Decoding means operative under program control in conjunction with a control code (102) on the key (34) points to selected locations in the key code memory (217) and the function table (218) corresponding to the control code (102). A microcomputer (112), under control of the main program, compares the primary (104) and secondary key codes (106) from the selected key (34) with the assigned key at the location in the key code memory (214). If there is a match, the microcomputer then operates under the control of the subroutine at the memory address pointed to by the function table (219) to execute the function of the selected key (34).

Description

[Name of invention]

Microcomputer Control Locking System

[Brief Description of Drawings]

1 is a perspective view of a door lock embodying the present invention installed on the door,

2a is a partial cutaway side view of the lock housing including the door knob and microcomputer controlled lock,

Figure 2b is a rear view showing a part of the lock control device,

Figure 2c is a representative code layout of more than a key,

3a is a microcomputer and an electronic control circuit diagram,

3b and 3c are functional block diagrams of a microcomputer unit,

4 and 5, 6a and 6b, 7 to 14 are flowcharts showing the control program of the microcomputer as the first embodiment of the present invention.

15 is a schematic front view of a magnetically encoded key for use in the second embodiment of the present invention,

16 is an electronic circuit diagram according to a second embodiment of the present invention.

17a, b and 18 to 21 are flow charts showing an additional control program for a microcomputer as a second embodiment of the present invention;

22 is an accurate view of the microcomputer,

23 is a microcomputer and an electronic circuit diagram according to a third embodiment of the present invention.

24 is a functional block diagram of a constant speed call memory (RAM) unit of the third embodiment;

25a and b are flowcharts showing a link code program for validating a new key;

26A, 26B, 27, 28A, and 29 are flowcharts showing control programs for key functions in the third embodiment of the present invention;

30A, 30B and 30C are flowcharts showing a control program for on-line reprogramming of a lock according to the third embodiment,

Fig. 31 is a flowchart showing a real time clock for providing a time base for door opening recording.

Detailed description of the invention

This application is a CIP application of US Patent Application No. 641,792, filed Mar. 28, 1984, filed Aug. 17, 1984, which is a part of CIP application of US Patent Application No. 594,471, now abandoned.

[Field of Invention]

The present invention relates to a computer controlled lockout system particularly suitable for use as a safety device, in particular as a door lock.

[Background of invention]

Many rooms, such as hotels, office buildings, and the like, require door locks. For example, door locks in hotel rooms must have different keys (keys) for subsequent customers. Also, at any given time the cabin door locks must be operable by different keys assigned to hotel employees such as employees, managers and hotel managers. Also for safety purposes, the key for each lock must be easily changeable.

Background Art In the past, lockout systems such as hotels have been developed that use electronic code response logic circuits for the operation of lock mechanisms.

Patent No. 4,177,657, issued to Aydin on December 11, 1979, describes an electronic lockout system that detects a code in a key and compares it with the code stored in memory. When the keycode matches the memorized code, the lock activates the clutch actuation bolt and can also change the memorized code to a new code. Aydin's patent describes a microcomputer control system for a lock. Each key has a control code, a first key code and a second key rod stored therein. The RAM stores a predetermined number of assigned key codes, and the ROM has a control program stored there for the control of the microcomputer. The key reader is coupled to the microcomputer and is adapted to interact with any key to read the code stored in the microcomputer. Different keys are used for different access levels depending on the control codes above the keys; Accessibility levels are assigned to customer keys, floor masters, section masters, and safety masters. If a code match is made, the system performs two important functions: let the clutch open the door, or change the code stored in memory. Furthermore, there are some auxiliary functions that prohibit opening to allow code changes, ie special key and double key functions that can only be used once.

Sapsey Patent No. 3,821,704 describes an electronic lockout system having a multilevel master key suitable for hotels and the like. Each lock mechanism is controlled by a decoding circuit having a changeable binary memory. The key has two reversible information systems, a key field and an authorization field. If the key sequence matches the combination stored in the decoding circuit memory, the lock is opened. If not known, the permission system and the combination system are compared. If they are the same, the key system is stored in memory and the lock is opened.

Dimitriadis patent 3,797,936 describes an electronic crystal with an optical encoding key. If the load over the key matches the stored code, the circuit activates the mechanism to open the lock. Asin patent 4,396,914 describes a microprocessor control decision. In this system, the electronic circuit compares the contents of the memory with the combination code and opens the locking device if there is a match. If the key card is new, the circuit calculates a new combination code, and if the new combination code matches that on the key card, the new combination code is loaded into the memory.

It is an object of the present invention to provide an improved safety device which is particularly suitable for use in rare door locking mechanisms and which can overcome the disadvantages of the prior art.

[Summary of invention]

According to the invention, an electronic correction system is provided that provides high safety, is simple to use and operate, provides high flexibility in different applications, and is economical to manufacture and install. The lockout system of the present invention provides a multilevel key, that is, a multikey with different functions in the lockdown system. The key function program of a set or library may be installed in each lockout system. Selection keys of the operating set This function is programmable in the locking system according to the particular application. Differently coded keys are issued for each key function. Locking systems can be used in many different cases and are particularly suitable for hotel door locks.

The lockout system of the present invention consists of a lock under the control of a microcomputer, a key reader coupled to the microcomputer, and a plurality of code keys of different forms, each providing a different function within the lockout system. The read / write memory has a predetermined number of assigned keycodes stored therein, and the ROM has a control program stored therein for program control of the microcomputer. The electrical actuator for the locking means is coupled with the unlocked output of the microcomputer. The control program consists of a main program and a number of subroutines in which each subroutine is stored at a different location in the ROM. The function table stored in any one of the memories has a plurality of pointers, each of which points to a memory address of one of the subroutines. The number of pointers in the function table is equal to the number of positions in the keycode memory. Decoding means operated under program control indicates a function table corresponding to a selected position in the keycode memory and a control code above the selected key. The microcomputer is operable to compare the first and second keycodes from the selected key under the program control of the main program with the codecs assigned to the positions in the keycode memory indicated by the decoding means. If there is a match, the microcomputer operates under the control of the subroutine at the memory address specified by the function table, so that the locking system operates according to the function of the selected key.

Further, according to the present invention, the microcomputer operates under the control of the starting program to set or program the function table so as to store the corresponding keycode in the keycode memory. The system has means for assigning a pointer corresponding to the desired key function to each position in the function table, and a code thereon for controlling the microcomputer according to the phase-in sequence of the initiator. The microcomputer accepts input from a continuous key-type key reader and stores the keycode in a location in the keycode memory that corresponds to the control code therein. The means for assigning a pointer of one type to a function table is a fault routine in the starting program. In other words, any desired programming of the function table can be performed by using a programming key having a pointer to be stored at each different position in the function table.

Further, according to the present invention, the present locking system can be used as a conventional moth locking device having locking means in the form of a regular locking bolt and a dead bolt. In addition, this locking system is provided with a logic deadbolt in the computer to provide a high degree of safety. Moreover, the microcomputer accepts an input from the locking means detector to determine whether the locking means have been activated, for example whether the normal bolt has been operated by the rotation of the knob.

The microcomputer also accepts input from the actual deadbolt detector to determine if the actual deadbolt has been administered, i.e. locked. The microcomputer also accepts input from the battery voltage sensor to issue a proper warning of a low battery condition. These inputs are used by the microcomputer under program control to execute different key functions according to program subroutines corresponding to different functions.

Further, according to the present invention, a library of key function subroutines is stored in a ROM of a computer, and any one set of selected sets of subroutines is operated by the microcomputer according to the function table assignment and the corresponding key. . Such key function subroutines include the following: The guest key operates to not lock the door if no logical deadbolts are set or no actual deadbolts are administered, but is prohibited by the inhibit bit set by the custodian key. It works. The custodian key may be an open or non-open key. If it is an open key, it corresponds to logical dead bolts and real dead bolts. If it is an unopened key, it can be used to prohibit opening by the last guest key. If the inhibit bit is set, the new key, the currently issued guest key, will open the door, clearing the inhibit bit. When an employee key is an open key, it corresponds to logical dead bolts and real dead bolts.

However, if the subroutine for the employee key checks the battery and it is low and was low to use the employee key the last four times, it will lock the door if the employee key is not inserted two times in a row. If a one-shot key is an open key, it corresponds to logical and actual deadbolts, and will only open the door if it is a new key, ie if it is the first match. The emergency key will respond by setting a logic deadbolt, opening the door relative to the deadbolt state. If the knob is rotated it will clear the logic ted bolt. The rephase key sets the logic deadbolt and extends the remaining cycle time to set the reorder procedure so that new code can be stored in keycode memory by insertion of another key.

The combination of the first safety key and the second safety key provides a high level of safety: the first safety key must be used first and operates to set the logic deadbolt, if the next key is the second safety key, If the key is open, it will open the lock. The hotel pass key is provided with a hotel code and operates to open a door to enter a pre-set hotel area such as a swimming pool or a game room.

In addition, the present invention provides a means by which a new keycode can be stored in the memory for a new key even if a previously issued key has never been matched. This is provided by using a first code, a second code, and a link code above the key. Also provided are means for on-line reprogramming of the lock, a time base for recording subsequent actions of the lock, a time base for recording subsequent actions of the lock, and additional keying subroutines. This is stored in the ROM. These additional key functions include office key functions with latches, latches, and toggles that are particularly suitable for office door locks, safety key functions using a single key sequence, and above or below a predetermined level that temporarily becomes inoperative. Includes an open function to open with a key at the level of.

The present invention will be described in detail with reference to the accompanying drawings.

BEST MODE FOR CARRYING OUT THE INVENTION

The figure shows a microcomputer lock control system of the present invention for use in a hotel door lock. The present invention may be applied elsewhere and other embodiments may be used.

First, a first embodiment of the present invention using a punch card key will be described, and then a second embodiment using a magnetically encoded key will be described, and then a lock operation, online reprogramming, and additional key functions will be described. A third embodiment will be described which includes a time base for recording.

1 shows the locking system or control system of the present invention installed in a door lock used in a hotel. The door lock 10 is installed in the door 12. Generally, it consists of a conventional tenon lock 14 and an outer door knob 16, an inner door knob 18, and a lock control system 22 installed in the door. The lock is provided with locking means in the form of a conventional retracting bolt 24 which may be operated directly by the inner door knob 18 or may be operated via the locking control system 22 by the outer knob 16. The lock is also provided with a dead bolt 28 operable by a dead bolt handle 32 on the inside of the door via a dead bolt shaft 34. In addition, as provided in the conventional lock 14, the dead bolt 28 is retracted simultaneously with the retraction of the bolt 24 by the operation of the inner or outer door knob. The key 34 in the form of a punch card is part of the lockout control system 22 for manual control of the lock.

The decision control system 22 is shown in detail in Figures 2a and b. In general, the lock control system is composed of a key reader 38, an electronic control actuator or lock control mechanism 42, and a lock 36 into which the microcomputer circuit board 44 is inserted. There is also an indicator lamp consisting of a green LED 46, a yellow LED 48, and a red LED 52, which can be seen through the window 54 in the lock. A pair of batteries 55 are installed in the lock 36.

The key reader 38 consists of a slot 56 for accepting the key 34 and a key switch 58 that operates in the closed state when the key is fully inserted and in the open state when the key is extracted. . The key reader 38 is a light reader which detects whether there is a punched hole in the key 34 and will be described in detail later.

The lock control mechanism 42 is composed of a lock pin receiver 62, a reciprocating lock pin 62, and a solenoid 66 for operating the lock pin. The lock pin receiver 62 is a disc-shaped member which is mounted non-rotatively on the door knob shaft 26. As shown in FIG. 2B, the upper half of the locking pin receiver 62 is provided with a circular groove 68 having an enlarged radius and aligned with the locking pin 64 with the door knob in its neutral position. When the locking pin 64 extends into the groove 68, the door knob shaft 26 cannot be rotated by the door knob and the dead bolt 24 is not retracted, so the door will remain locked. The locking pin 64 is cylindrical with the head 72 at the upper end, and is connected to the contact 76 of the solenoid 66 by the pivot coupling device 74. The locking pin 64 extends through the guide bracket 78 mounted on the lock, and the head 72 of the locking pin is seated on the bracket when the locking pin is lowered. The lock control mechanism 42 also includes lock detection means in the form of a door knob detector 82 which provides a signal when the door knob is rotated. The door knob detector 82 includes a reed switch 84 mounted on a circuit board 44, a door knob shaft 26 and a rotatable arm 86, and supports a permanent magnet 88. When door knob 16 is rotated, arm 86 moves with shaft 26 to position magnet 88 remotely from reed switch 94 so that normally open reed switch 84 is closed. do.

The lock control mechanism also includes a dead bolt detector 92 for providing a signal indicating whether the dead bolt is advanced or retracted, a reed switch 94 provided on the circuit board 44, and a fed bolt shaft 34. An arm 96 arranged for rotation. Arm 96 supports permanent magnet 98 in a position adjacent to reed switch 94 when the dead bolt is in the retracted position. The reed switch 94 is normally opened, the dead bolt is advanced by rotating the shaft 34, and the magnet 98 is operated in a closed state away from the reed switch 94.

The above-described key 34 will be described in detail with reference to FIG. 20. The multiple keys (keys) shown in Figure 2c are intended for use with the same lock and some may be used for something other than a lock. In hotel lockout systems, some people, including guests, require keys for different operations of a given lock. In the illustrated system, there are eight different types of keys as follows. That is, there are a guest key, an employee key, a manager key, an attendant key, a one-shot key, a fail-safe key, a master key, and an emergency / rephase key. Each key is an opaque card, and three different code systems 102.104 and 106 are provided.

In the card shown in Fig. 2C, each small rectangle represents a bit position. If the bit position is a punched hole, it is 1 bit. It is zero bits if not punched. The code system 102 is encoded with a control code containing nibble or 4-bit characters. The three bits from the top indicate the function or level of the key, the fourth bit is also called the open bit, and when it is 1 the key is an open key and when it is 0 the key will be unlocked. The code system 104 includes 16-bit keycodes or characters arranged in four rows of nibbles and indicates the first keycode for the lock. The code system 106 also includes 16-bit keycodes or characters arranged in four rows of nibbles and indicates the second code in the lock. The lower row of bits is the sync bit for the self-clock of the key reader. One bit is used for the sync bit position only when there is no one bit in a particular row. Before describing the function and operation of different types of keys, a microcomputer control circuit is described.

A microcomputer lock control circuit will be described with reference to FIG. 3A. The microcomputer 112 is a single-chip 4-bit microcomputer, namely MB88400 and MB88500 series made by Fujitsu Limited of Japan. The key reader 38 is controlled by the microcomputer 112 and provides input to the microcomputer as follows. The key reader 38 is an optical reader provided with a first pair of infrared LEDs 114, 116 for use in reading the data bits of the first and second columns of the code system above the keys, respectively. The second pair of LEDs 118, 112 are positioned for use in reading the data bits of the third and fourth columns. LED 124 is positioned to read the synchronous data bits of the code system in the key.

The LED described above is activated through a switching transistor 126 whose base is connected to pin R3 of the computer via a resistor 128. The emitter of transistor 126 is connected to the + terminal of the battery and the collector is connected to three LEDs through resistors 132, 134, 136. The key reader 38 includes five phototransistors 142, 144, 146, 148 and 152. The phototransistors 142 and 144 are optically aligned with the LEDs 114 and 16, respectively, and are connected to the data pins D2 and Dl of the microcomputer. Phototransistors 146 and 148 are optically aligned with LEDs 118 and 112, the collectors of which are connected to data pins D2 and D3, respectively. The phototransistor 152 is aligned with the LED 124 and its collector is connected to the auxiliary clock pin of the microcomputer.

핀에 있는 START핀 사이에 연결되어 있다. 마이크로컴퓨터의 RESET핀은 전압원을 지나 직렬로 연결된 저항(158)과 캐패시터 (162)의 접속부에 연결되어 있다. 저항(164)은 클럭발생기 외부핀(X,EX) 사이에 연결되어 있으며, 캐패시터(166)는 핀rEX)과 접지 사이에 연결되어 있다.The dead bolt detector switch 94 is connected between ground and pin R10, and the door knob detector switch 84 is connected between ground and pin R9. The key switch 58 is grounded via a voltage source and a resistor 156.

It is connected between the START pin on the pin. The RESET pin of the microcomputer is connected to a connection of a resistor 158 and a capacitor 162 connected in series across a voltage source. The resistor 164 is connected between the clock generator external pins X and EX, and the capacitor 166 is connected between pin rEX and ground.

The supply voltage line 168 is connected to the battery voltage through the switching transistor 172, the base of the switching transistor 172 is connected to the resistor (174) to pin R2, the pin (RO) is a resistor ( 176) is connected to ground. The solenoid 66 is controlled by a microcomputer via a release output stage comprising pins 04 and 05. For this purpose, the upper terminal of the solenoid 66 is connected to the battery, the lower terminal is connected to the ground through the switching transistor 178. The switching transistor 178 is controlled by the switching transistor 182, which has its collector connected to the supply voltage line 168 through a resistor 184, whose emitter is at the base of the transistor 178. It is connected. The base of transistor 182 is connected to pin 04. When pin 04 is high, transistors 182 and 178 are turned on, and pull-in current is supplied to solenoid 66 to sufficiently retract lock pin 64 to release the door. do. In addition, the lower terminal of the solenoid 66 is connected to the pin 05 through the switching transistor 186.

In particular, the solenoid is connected to the collector of transistor 186 via a resistor 188, which is connected to its emitter ground and its base is connected to pin 05. When pin 05 is high, transistor 186 is turned on, and the solenoid removes enough of the holding current to hold clamping pin 64 in its retracted position.

Each green. Yellow and red LEDs 46, 48 and 52 are controlled through the 0-port. The green LED 46 is controlled by pin 0 _ø via comparator 192. In particular, the green LED 46 is connected between the battery and the output of the comparator via a resistor 194. The pin (0 _ø ) is connected to the non-reflective force terminal of the comparator 192, the voltage supply line 168 is connected through the resistor 196 and the series diode 198, the voltage passed through the diode is the reference voltage Is applied to the inverting input terminal of the comparator 192. The yellow LED 48 is controlled by pins 01 and 02.03, respectively, connected in parallel for increased current capability to the LED 48 via the series resistor 202. Red LED 52 is controlled by pins 06 and 07 connected in parallel to LED 52 through resistor 204.

The low battery detector for detecting low battery voltage is controlled by pin Rll of the microcomputer and includes a comparator 206. In particular, a pair of voltage divider resistors 208 and 211 are connected between the voltage supply line 168 and ground. The connection of the voltage divider resistor is connected to the non-inverting input of the comparison 206. The inverting input is connected to a reference voltage distributed across diode 198. Pin Rl2 is connected to ground through a resistor 213. When the voltage at the non-inverting input terminal of the comparator 206 drops below the reference voltage on the inverting input, the output of the comparator 206 is low, and its output is applied to the pin Rll.

The microcomputer 112 will be described in more detail with reference to FIGS. 3b and c. The microcomputer includes a ROM 215 for storing a program for operating a lockout system as indicated by the flowchart shown in the figure. ROM 215 will be described in detail in FIG. In addition, the microcomputer has RAM used for various registers, counters, and memory blocks.

In particular, as shown in FIG. 3B, the RAM includes a keycode memory 217 containing 32 characters divided into eight different levels with four characters per level. This memory stores the keycode at the level of the carbage corresponding to each of the eight different levels of the key. When the first code or the second code above the key matches the key code for the particular level of the key, the lock operates according to such instructions. The RAM also includes a function table 219 containing eight characters which are designated to address the appropriate level for the key in the keycode memory 217 according to the control code above the key. The spare memory block 221 is used to store operation data as a back memory. It stores keycode memory, function tables and open bits. The operation state control memory 223 is provided in a RAM and includes a periodic timer and a state register. These state registers include red, green and yellow LEDs and solenoid flames.

The RAM also includes a register completion counter as shown in FIG. 3C. The 4-bit register 225 includes a new bit flag 227, a logic deadbolt flag 229, a dike flag or bit 231, and a memory comparison flag 233. In operation, the use of these bits will be described in detail later. In addition, the inhibit register 235 includes four different inhibit bits for use by the operation of the manager key to prevent the use of previously issued guest keys. The employee key counter 237 is used to maintain multiple tracks used to open the door with a low battery warning light to activate the guide key. The false read counter 239 maintains a subsequent coefficient that causes the lock to use a key whose key does not match the code memory. The history buffer includes a keyed register 241, which records the last few key types (except for the non-open key) used. It also includes an iteration counter 243 that counts the number of iterations of the last open key. The type and format register 245 keeps a record of the state and format of the last key used (whether it is an open key or a non-open key). The use and operation of these registers will be described later.

The ROM and RAM of the microcomputer are described in detail in FIG. The ROM 215 includes a program memory 800. This memory stores the main program and a number of subroutines in discrete locations. The ROM also stores a first decoder or index table 802 and a second decoder or index table 804. The function and operation of this index table will be described later. The microcomputer's RAM includes a control code register 806 to hold the control code read from the key to be processed. As described above, the RAM includes a function table 219 and a key code memory 217. As shown, the function table 219 is an eight character table with eight different levels or positions, labeled 0-7, with different characters at each level. Each character is a 4-bit pointer that functions in conjunction with index table 802 to assign to the memory address of one of the subroutines in program memory 800. Keycode memory 217 is shown having eight different levels, labeled 0 through 7. FIG. Each level or location stores a 16 bit keycode. The RAM also includes a flag for indicating the operation of the locking means, such as the hotel code register 808, the cycle time flag 812, and the knob-turn flag 814.

When the key code is read from the key reader in the microcomputer, the control code is temporarily stored in the control code register 806. The 4-bit control code is used as a pointer loader and is decoded by an index table 802 that operates to be assigned to one of eight levels in the function table 219 and the corresponding level in the key code memory 217. Thus, the control code operates to specify the key code in key code memory 217, which memory is compared with the code read from the key. The 4-bit pointer in the function table 219 specified by the control code is at the same level as the designated key code. This 4-bit pointer is advanced using the second index table 804 to obtain the address of the subroutine of the program memory corresponding to the key function. The operation of the lock will be described with reference to the flow chart shown in FIGS. 4 to 14. This flowchart displays the operating program stored in the ROM 222 of the microcomputer 112.

4 is a flowchart showing a decision start program. The operating system start block 210 operates the microcomputer 112 and the electronic control circuit 44. This operating condition occurs when the battery in the lockout circuit is connected and constitutes a cold start of the system. When the power is turned on, the program proceeds to a test block 212 which determines which part of the system has failed. If it fails, the program is returned to the operating system initiation block 210 and, if it is not broken, the program goes to block 214 to set the means for assigning the level, i.e., the default configuration of the assignment level in the keycode memory. Proceed. As mentioned above, the keycode memory 217 in the RAM has eight different positions or levels, each level storing a keycode. In addition, the function table 219 in RAM has eight different positions or levels, with each of the eight positions indicating a particular function to be executed according to the key corresponding to that level. In the illustrated embodiment, the default configuration of eight different allocation levels is as follows.

Memory level 1: card type C, number of guests 1:

Memory level 2: Card Type B, one shot;

Memory level 3: Card type 4, fault-safe:

Memory level 4: card type D, custodian / banned guest:

Memory level 5: card type A, ruler for allocated area:

Memory level 6: Card Type F, Emergency / Rephase;

Memory Level 7: Card Type C, Number of Customers 2 (Executive):

Memory level 8: card type E, employee:

In addition to the default configuration set as described above, the program proceeds to an input block 216 where the system waits for key input. At this location during the initiation process, only the effective key entry is the first or initiation change key, which is used as a pre-step to assign a particular key code to different memory levels.

If the test block 218 determines that the input key is not a phase key, the program returns to block 216 and waits for another input. If the input key is a phase key, the program proceeds to block 220 which inserts a logical deadbolt at block 218, i.e., sets the logical deadbolt bit to 1, and then proceeds to input block 222. Wait for key input. At this position during the start-up process, the lock is assigned for the assigned keycode written to the keycode memory 217 at the position assigned by the same pointer as used by the function table 219 according to the allocated memory level. Ready

In other words, some keycodes are written to the memory at level 1 for one guest function and some keycodes are written to the memory for level 2 for the same function as the primary function. When the system receives a key input, the program proceeds to block 224, where the second code from the key is written to the key memory 217 at a level corresponding to the key level or control code encoded above the key. do.

This process, as indicated by block 224, is repeated for each keystroke. After the key is entered, it is processed by block 224, and then the stop routine 234 keeps the system idle. The test block 226 determines when all levels are performed. Different keys corresponding to different memory levels may be input in a predetermined sequence.

This operation of the keycode phase-in is fundamentally long with rephasing the lock (changing the keycode at more than one level). After the phase-in sequence is completed by block 224, the program proceeds to block 234, waiting to wait for the system for the next key. When a key is entered at the input 228, the program proceeds to a test block 230 which determines whether the entered key is an emergency key.

If it is not an emergency key, the microcomputer will proceed even when the key is inserted, but the program returns to the input stage 228. If the key entered is an emergency key, the program proceeds to block 232 which clears the logical deadbolts. This makes the lock easy to use and the program proceeds to a stop routine 234 that places the system in a waiting state waiting for the next key. Thus, the initiation process for the lock is completed and the lock is readily used. In general, this initiation process is performed at the factory to facilitate the use of the lock when it is installed in the door. If necessary, the initiation process may be performed after the lock is installed.

5, the operation of the lock is described. As mentioned above, the initiation process is to locate a lock for ease of use by multiple keys locked. After the initiation process, the lock is on standby and waits for key entry. The operation as indicated by the flowchart of FIG. 5 is the same for all of the multiple keys used with the lock. If a key is entered in input block 240, the program proceeds to block 242 which starts a periodic timer in the microcomputer. After the key is inserted, the start switch is activated, allowing 5 seconds by 9 nibbles of data from the key to be clocked and the periodic timer for the knob to be rotated. Typically, the key is read in less than one second depending on the ejection rate (operations that occur during the rest of the time will be described later). The program is advanced from block 242 to block 244 which operates the central memory unit (CPU) of the microcomputer to test the integration of the memory state. In this test, the current state is compared with the state memorized when the lock proceeds to standby.

If there is an error, the CPU attempts to recover and the program proceeds to block 246 which provides a time delay for the LED to reach the ON state. Block 248 then waits for data changes and then enters the input block. At 250 the key is taken out to open the start switch. This proceeds to block 252 where the program enters code from the key. This block contains the control code, the first code, and nine characters representing the second code from the code reader.

The program then determines if the tenth valid character has been entered. For this purpose, the program checks whether the code reader detects the tenth character with one at each bit position that is the correct state of the code reader after good reading of nine encoded characters above the key. Proceeds to). In other words, the card reader should detect all 1s (all bit positions are clear) after the ninth character when the opaque key clears the reader while nine characters are detected consecutively at the time of key extraction. Thus, if the tenth character is not all 1s, the misread indicates that it can be excited from the irregular motion of something like a card. If the characters are not all 1's, the program proceeds to block 255 which increments the error (misread) counter 239 and then to the stop routine 234 which waits for the system to wait for the next key. In the case of a misjudgment of the key, the key can be reinserted and the program will be repeated from block 240. If the tenth character is all 1, the program proceeds to block 255 which allocates battery status. If the state of the battery is not low, the program proceeds to block 260 of FIG. 6A. If the state of the battery is low, the program sets the state for the low battery display by the red LED. The process then proceeds to block 260 of FIG. 6A.

The program indicated by the flow chart of FIGS. 6A and 6B is a continuation of the FIG. 5 program. It is also used for lockout operations by different keys phased at different levels of keycode memory. In other words, a key of type A-F at one of levels 1-8 will cause the microcomputer to operate according to the continuing program of FIGS. 5 and 6a and b. As described with reference to FIG. When embedding valid reading of nine characters encoded above the key, the program proceeds from block 257 of FIG. 5 to block 260 of FIG. 6a. Block 260 uses a first character representing the level code and a functional cable 219 in memory to obtain a pointer or address for the location of the key code stored in key code memory 217. The test block 261 then determines whether the most significant key is the rephase key.

If the last key is a reverse key, the program proceeds to test block 254, but otherwise proceeds to test block 262 which determines whether the first code of the key matches the code stored in key code memory. do. If the first code matches the code stored in the memory, the program proceeds to test block 264 which determines whether the second code is -1. The second code, which is all 1, is used only to connect to the emergency / refakey. If the test block 264 determines that the second code is not all ones, the program proceeds to a test block 266 which determines whether the key code memory is all set to one. (The keycode memory is set to all 1's to disable the lock and nothing else is used as a valid code.) If the test block 266 determines that the keycode memory is not all-1, the program It proceeds to block 268 which writes the second code from the key to the keycode memory, which replaces the previously stored keycode.

The program then proceeds to block 270 which sets a new flag 227 to indicate whether the key is new, that is, the first one used. The program proceeds from block 270 to a test block 272 that determines whether the second code matches the key code stored in the memory. If the second code matches the keycode, the program proceeds to block 274 for clearing the misread counter 239 described above (the purpose of the misread counter will be described soon). Clearing the error counter After execution, the program proceeds to block 276 which branches the program to a particular subroutine for the level corresponding to the pointer obtained by block 260.

Therefore, it is assumed that the program proceeds linearly from the program block 260 to the bulter block 276 in the operation described with reference to FIG. In test block 262, if it is determined that the first code is not the same as the key code stored in memory, the program will proceed from there to test block 272 which determines whether the second code matches memory.

If the second code is the same as the memory, the program first proceeds to block 274 and then to block 276 where the program branches. There is another state not described above, which proceeds operation to block 276 where the program is forked. These other states are as follows.

If the test block 262 is all -1 as the first code matches the memory and the second code is determined by block 264, then the program determines whether or not the test block determines whether the open final key is an emergency key. 278), otherwise the program proceeds to a test block 280 that determines whether the last key inserted is a phase key. If the last key is a phase key, the program proceeds to block 268 which writes the second code into memory, and then to block 276 where the program branches past blocks 270, 272 and 274. The above state is obtained by writing all 1's to the keycode memory level and requiring a lock that cannot be used for the given level. There is another state in the operation of the system in accordance with the procedure of FIG. 6, in which the program will proceed to block 276. The test block 262 determines whether the first code matches the memory, the test block 276 determines that the second code is not all 1, and the test block 266 determines that the key code memory is all 1's. If not, the program will proceed to test block 278 which determines whether the last open key is an emergency key. If the last key is an emergency key, the test block 280 determines whether the inserted last key is a rephase key. If the last key is a phase key, the program proceeds to block 268 which writes the second code into memory, and then to block 276 where the program branches as described above via blocks 270, 272 and 274. It will proceed.

This latter state can be obtained if the memory sets all locks that are not available at a particular level to one.

However, the test block 274 determines that the second code is all 1 or the test block 266 determines that the memory is all 1, and the test block 278 determines that the last open key is not an emergency key. If test block 280 determines that the last key is not a rephase key, this indicates that the lock is to be used, and the previously unused lock is not phased.

Thus, the program proceeds from block 278 to stop routine 234 to keep the system in standby.

If the program in FIG. 6 determines that the program proceeds to the test block 272 and that the second code does not match the memory, the program will proceed to block 282 which increments the error counter 239. As mentioned above, the error counter is used to record the number of times the key is used for a lock whose memory and second code do not match. This may be caused by using a mismatched key or may result from a misreading of data as referenced in the program of FIG. If a key is inserted more than eight times with eight failures to match the code, it is very annoying. For this reason, the program proceeds from block 282 to test block 284, which determines whether the coefficient of error is eight or more. If the error coefficient is less than or equal to 8, the program proceeds to a stop routine 234 that puts the system in standby waiting for the next key. If the error factor is greater than or equal to 8, the program sets a local timer in the operational state control memory 223 for 5 seconds to prevent reading data from the key by clock 252 in FIG. 5 until 5 seconds have elapsed. The process proceeds to block 288. Each time a match of the code with the error counter 230 is determined by block 272, it is cleared at block 274.

When the program of FIGS. 6A and 6B reaches block 276 as described above, the program branches to the subroutine for the level corresponding to the pointer obtained by block 260. Subroutines corresponding to different levels will be described later.

If the key entered in block 240 of FIG. 5 is a guest key of 1 guest at level 1 and 2 guest at level 7, the program proceeds from block 276 of FIG. 6b to block 300 of FIG. will be. 7 shows a guest key usage program or subroutine. The guest key is for unlocking unless the actual deadbolt is administered, the logical deadbolt is not set, or the lockout operation is set for the level of the key on which the inhibit bit is entered. The prohibit bit can be set by already entering (non-opening) the admin key so that it cannot be opened using the guest key first.

Such a procedure may be used as a safeguard to protect the guest entering and leaving the room, the operation of the system by the supervisor key will be described in detail later. In view of this, the manager key (non-open state) is effective to set all of the inhibit bits in the inhibit register 235. As mentioned above, the inhibit register has only two active inhibit bits because there are only two guest levels, i.e., levels (1,7), assigned to the function table for the lock as described.

When a new guest key is assigned, e.g., a key entered in block 240, the key must operate to clear the inhibit bit for its level if such a inhibit bit is set.

The guest key program is shown in FIG. As mentioned above, one or more levels are allocated for the guest key function. The inhibit register contains 4 bits, each of which may optionally be set for one of the guest key levels. Therefore, in the offset, the forbidden register must determine the forbidden bit corresponding to the entered guest key. For this purpose, the initial block 300 counts the guest functions below its own level in the function table. The prohibition bit is at the same relative position as the guest key level. The program then proceeds to a test block 302 which determines whether the inhibit bit is set for the level of the key to be advanced. If the inhibit bit is set, the program proceeds to a test block 304 that determines if a new flag is set. If a new flag is not set, i.e., if the key to be advanced is not a new key, the program proceeds to block 306 which lights a yellow LED indicating that the keycode matches but the door will not open. When the test block 304 determines that a new flag is to be set, the program proceeds to block 308 which clears the inhibit bit for the level of the key to be advanced and then to the test block 310 which determines whether a logical deadbolt is set. Proceed. If the test block 302 determines that the inhibit bit is not set, the program proceeds directly to the test block 310 which determines whether the logical deadbolt is set. If a logic deadbolt has been set, the program proceeds to block 306 which lights the yellow LED. If no logic deadbolts have been set, the program proceeds to a test block 312 that determines whether the actual deadbolts are set. If the actual deadbolt is set, block 306 illuminates an amber LED; otherwise, the program proceeds to block 314 to activate the solenoid and then to test block 316 to determine if the cycle time has elapsed. Proceed. If the cycle time has elapsed, the program proceeds directly to block 234 where the stop routine starts, which will be described with reference to FIG. If the cycle time has not elapsed, the program proceeds to test block 318 which determines if the knob has been rotated. If the knob is not rotated, the program is fed back to the test block 316 while the knob is rotated to the stop routine 234.

In Fig. 8, a political routine is shown. Generally, stop routines are intended to place a lock in standby by recording or storing some data involved in the recent history of the lockout operation.

The history of lockout operations in lockout memory permits a continuous memory dump for analysis, safety, or diagnostic purposes. This memory dump contains an identification for eight open keys to use to actually open the door. An open repeat counter 243 is provided for recording up to 15 door openings for several (eg five) different keys used to open the lock. Stop routine 234 begins at block 328 where the knob is rotated to open the door, i.e., the door is opened. If the knob has not been rotated, the program proceeds to a test block 329 that determines if the delay timer has timed out. If the time is up, the program proceeds directly to block 334 and bypasses the write step. If the delay timer did not somewhat time out, the program is fed back to block 328. If block 328 determines that the knob is rotated, the program proceeds from keyed register 241 to block 330 which determines whether the key to be advanced is at the same level as the last key used to open the door. . If the key is not at the same level as the last key, the program proceeds to block 332 which includes a repeat counter 243 and shifts the new data into the history buffer which writes zero for the level of the key to be advanced. Proceed to block 334. If the response to test block 330 is YES, then the program proceeds to test block 336 which determines whether the iteration counter 243 related to the level of the key to be advanced is 15. If the half bob counter is 15, the program proceeds to block 334. If the repeat counter is not 15, the program proceeds to block 338 which increments the counter and then to block 334. Block 334 shuts off power to an external device comprised of solenoids and LEDs.

The program then proceeds to block 340 which writes data to the state control memory 223 of the RAM to store the current state of the lock. This stored state is used as reference data to cause the lock state to be reset the next time the lock is activated. After passing block 340, the program proceeds to block 342 where the lock is placed in a waiting state to wait for the next key. The stop routine described above is used in conjunction with another key, the operation of which will be described later.

When an employee key is entered in block 240, the program branches to the subroutine of the employee key shown in the pro- cess chart of Figure 9 in block 276. The employee key assigned to level number 8 in the function table is a number of rooms, For example, it is intended to be used as an open key for all rooms on the same floor of a hotel, and an employee key is used to alert the employee of the low battery condition of the lock, so that it can be replaced with the current fashion.

The employee key program starts at block 360 to determine if the battery is low. If the battery is low, the program proceeds to block 362, which increments an employee key counter that counts the number of times the door is opened by the employee key while the battery is low, as described above.

The program proceeds to block 364 which determines whether the employee key counter is four. If the counter is 4, the program proceeds to a test block 366 that determines whether the final key is an employee key, otherwise the program proceeds to the stop routine 234 as described above and waits for the next key. .

Thus, the initial insertion of the employee key will not be able to open the door when the solenoid is activated, and the door (knob) is opened (rotated) four times by the employee key with a low battery. In this situation, in order to open the door, the employee key must be inserted twice. If test block 366 determines that the last key is an employee key, block 368 lights up the red LED and then proceeds to test block 370. The test block 370 determines whether the logic dead bolt is set. If logic dead bolts are set, block 372 lights an amber LED. If no logical deadbolts are set, the program proceeds to block 374 which determines whether the actual deadbolts have been set. If the actual dead bolt has been set, block 372 illuminates a yellow LED. If no actual dead bolt has been set, the program proceeds to block 376 to activate the solenoid, then to the stop routine 234, and waits for the next key. When the test block 360 has a high battery, the program proceeds to block 378 which clears the employee key counter, and then proceeds to block 370 as described above.

If a custodian key is entered in block 240, the program branches to a custodian key subroutine shown in the flowchart of FIG. The custodian key is provided in two different states, open and unopened. The two states of the key are used for a number of different locks, such as locks for all rooms in a hotel. The manager's key is used to enter the door opening the door.

The lock state is used to lock the first guest from being used by setting the inhibit bit to 1 so that the new guest key can be used to open the door. The custodian key subroutine starts with an open bit (block 390, which determines whether one bit, which is the first character, is 1.) If the open bit is 1, the key is open and the program is set to a logical deadbolt. If the logic dead bolt is set, the program proceeds to block 394, which lights up an amber LED, and then to the stop routine 234. The logic dead bolt is not set. If not, the program proceeds from block 392 to block 396, which determines whether the actual dead bolt is set, and if the actual dead bolt is set, the program proceeds to block 394, which lights an amber LED. If no actual deadbolts have been set, the program proceeds to block 398, which activates the solenoid, and if the test block 390 determines that the open bit is not 1, the program After proceeding to block 400 to set all prohibition bits to 1, to block 394, which illuminates the yellow LED, and to stop routine 234.

If a primary key is entered at the input block 240, the program will branch to the primary key subroutine at block 276. This subroutine is represented by the flowchart of FIG. One shot is intended to open the door only once. For example, a repairman may enter a protected cabin only once, but may not be able to enter several times in succession. The one-keyed subroutine starts at test block 410 which determines if a new flag is set. If no new flag is set, that is, this key has already been used, the program proceeds to stop routine 234. Once the new flag is set, the program proceeds to test block 414 to determine whether the logic deadbolt has been set. If a logic deadbolt is set, the program proceeds to block 412, which lights up a yellow LED, otherwise the program proceeds to test block 416, which determines if the actual deadbolt has been set. If the actual dead bolt is set, the yellow LED will light up, otherwise the program proceeds to block 418 to activate the solenoid and to the stop routine 234.

If an extra key has been entered in the input block 240, the program branches to an extra subroutine indicated in the flowchart of FIG. 12 at block 276. The extra key is assigned level 5 in the keycard memory table for use as the dominant key for the allocation area or group of rooms. The spare key is also assigned to level 3 in the memory table, in which case the fail-safe key is used to function as a guest key that cannot be generated due to an emergency, such as equipment failure or power outages in the hotel. . The spare key, whether fail-safe or zoned, has the function of opening a door in which no logical or actual deadbolts are set. The custodian key does not prohibit opening by an extra key.

The extra subroutine starts at test block 430 which determines whether a logic deadbolt has been set. When the logic deadbolt is set, the program proceeds to block 432 where the yellow LED is lit and to the stop routine 234. If no logic deadbolts have been set, the program proceeds to a test block 434 which determines whether the actual deadbolts have been set. If the actual deadbolt is set, the yellow LED is illuminated, otherwise the program proceeds to block 436 to activate the solenoid and to the stop routine 234.

If an emergency / rephase key has been entered into the input block 240, the program proceeds to block 276 and then branches to the emergency / replace key subroutines shown in the flowcharts of FIG. 13 and FIG. There are two states for the emergency / repaid key. One state, called an emergency key, is an open state with 1 in the open bit position of the first character encoded above the key. The other state, called the phase key, is a non-open key and has a zero in the open bit of the first character. The emergency key will open the door regardless of the actual or logical deadbolt status. When the dead key is entered, the logic deadbolt is set, and if the knob does not rotate, it remains set. Because the emergency key is an open key, the knob will rotate, and if the knob is rotated, the emergency key will clear the logic deadbolt. Also, the knob is rotated to release the actual dead bolt. Logical deadbolts are not released by any key other than the emergency key.

Emergency / Replace Key This subroutine starts at block 450 which sets a logical deadbolt. The program proceeds to test block 452 which determines whether the key is open. If the key is not open, the program branches to the phase subroutine of FIG. If open, the program proceeds to the emergency subroutine starting at block 454 to activate the solenoid. The program proceeds to block 456, which illuminates a yellow LED, indicating that the solenoid has been activated to open the door but the knob is not rotated. The program proceeds to a column block 458 that determines if the cycle has ended.

If the cycle has ended, the program proceeds to stop routine 234. If the cycle has not ended, the program proceeds to block 460 which determines if the knob has been rotated. When the knob is not rotated, the program returns to block 458. If the knob is rotated, the program proceeds to block 462 to clear the logic deadbolt, then to block 464 to illuminate the green LED three times, and to the stop routine 234 to wait for the next key.

The emergency key is used to lock the room in a highly secure manner. For example, if a guest has valuables in the room and would like to avoid opening the lock with an employee key or a manager key, the hotel manager can use the emergency key and not end the cycle without turning the knob. This will release the set of logic deadbolts and will remain set after the emergency key is taken out.

In this state no other key will be able to actuate the opening mechanism. When the guest wishes to return to the lockout operation, the emergency key is inserted by the hotel manager and the knob is rotated to open the door. This puts the lock on hold and waits for the next key.

The phase key is used to lock the new keycode to a predetermined level of memory. Generally, a lock is used by inserting a phase key into the lock, removing the key, and then inserting some other key encoded with a keycode that is read into the keycode memory. This is done in a similar order to the first guest key used, where the second code of the key is written to the keycode memory at the level corresponding to the key.

The phase subroutine will be described with reference to FIG. The emergency / replace key program is branched at block 452 when the key is set to a non-open state, that is, a reverse key. The phase subroutine starts at block 480 to determine if the phase key is the first key used. (The RAM memory including the repeat counter 243 when the phase key is used twice in succession is dumped to the analysis portable computer via a terminal on the microcomputer, and then the program is moved to a block 482 that lights up an amber LED. If this is the first key to be used, the program proceeds to block 484 which quadruples the remaining cycle time and then proceeds to test block 488 which determines if the extended cycle time has ended. If the cycle time has ended, the program proceeds to block 490 which erases the recording of the used phase key. If the cycle time has not expired, the program proceeds to block 492 to determine whether another key has been applied. If no other key is entered, the program is returned to test block 488. If another key is inserted, the program proceeds to block 494 where it is determined whether the second code is all one. If the result is yes, the program proceeds to test block 498 which should be described as is. Otherwise, the program proceeds to block 496 where it is determined whether the keycode memories are all one.

If the answer is yes, the program proceeds to block 498, where the emergency key is the last key to open the door. If it is not an emergency key, the program proceeds to stop routine 234. If it is an emergency key, the program proceeds to block 500 where the new key code is written to memory. If both blocks 494 and 496 answer both no, the program proceeds directly to block 500 where the new code is written to memory.

A second embodiment of the present invention is shown in FIGS. 15 to 21. FIG. The second embodiment of the present invention is characterized by a magnetic key, unlike the punch card key described with reference to the first embodiment. As shown in FIG. 15, the magnetic key 508 consists of a card 510 made of an opaque plastic material suitable for attaching the strip to the magnetic band. The magnetic strip 512 has two recording tracks 514 and 516 and has the property of a stereo recording tape. Each track is recorded as a wave-like magnetic field showing magnetic poie trains in the form of an analog signal. Each track is encoded as a magnetic signal representing 20 bit information. As described below, the magnetic key 508 is read by a key reader that converts the magnetic signals of the tracks 512 and 513 into electrical signals.

As in the first embodiment, the lock is suitable for using eight different key functions. However, more than eight different types of keying functions are available even if only eight are programmed in a temporary lock. Different types of keys may be programmed as follows.

Key Form A: Open and unopened, and sequential and non-sequential ie normal operation for normal use or master key Pevel, all other key forms operate as above except for special functions as is well known.

Key-type B: single input "one-shot" only opens the door once. An internal flag is held in memory to allow only one operation per code of the strap. A service that only needs to enter the room once. Used for personnel.

Key Form C: A normal guest, non-open manager key can be used to prohibit (close) the currently active guest level. Internal flags are used to prohibit up to four different guest levels. The sequential card must be the next card used to access the cabin. When a new guest card is sequenced to the lock, the guest level is still reactivated with another forbidden guest level. The use of prohibited guest keys only lights the yellow LED.

Key-type D: Manager function, open status works normally. Non-open status will prohibit all current guest level cards. Used to prohibit a check-out customer before a new guest card is sequenced. Four or more levels, such as a normal guest or attendant, are prohibited at the same time.

Key-Form E: Employee / Low Battery Key. Normally used for access by employees with the special effect of the low battery prohibition function, when an employee key is used to open the door 4 times (ie, turn the handle) differently to the battery, the keys are sequentially opened to open the door. It is inserted twice. The purpose is to inform the employee that the battery needs to be replaced. If the low battery prohibition function is normal and the lock is locked, the initial insertion of the employee key will reset the low battery indicator.

Key-Form F: Emergency / Repaid. This is the safest key and if the key is inserted and the knob does not rotate it will check the logic deadbolt status. The open state remains as an emergency key and will always open the door regardless of the actual or logical deadbolt state. Insert the key and turn the door knob to release the logic deadbolt. The non-open state of this key is considered to be a phase key. Insertion of this key confirms the logical deadbolt, but the handle cannot rotate to release the logical deadbolt. This key loads the new keycode into keycode memory. If a particular memory level is all forbidden by one encoding, the phase key must be advanced by an emergency key that causes a new key code to be loaded. Sequential use of the emergency key and the phase key requires that the code be phased to 1 for all at a given level to prohibit the use of that level.

Key-type G: Security A: This key is the first of two key sequences for safety accuracy. The low state secures a logical deadbolt, but the non-open state does not. This allows a sequence of new safety keys without dead bolting the lock.

Key-type H, safety B: This key is the second of the two key sequences for safety accuracy. This key must be inserted within the normal cycle time after the safety A key to allow the door to open. This key is unlocked regardless of the dead bolt state, and secures the logical dead bolt state after use. The non-open state can sequence new keys if necessary and will not secure deadbolts. Safety A-Safety B The operation of the door lock with this sequence only safety B is recorded in the door lock history.

Key-type I, non-operating. The non-operation key is used to program the level into an inactive state, i. Keys do not work for inactive levels. The level can only be activated by powering and reprogramming. The key will not operate at the inhibit level.

Key-type J, Hotel Pass: This is a useable function that can be programmed to allow door lock operation by matching the card key only with the level code and hotel code. That is, it does not require matching of the first or second key codes. Typical uses include access to hotel areas such as swimming pools and game rooms.

As described, the write code above the key reads from the key in two parallel streams of data. For this purpose a magnetic key reader 520 is provided as shown in the schematic diagram of FIG. The magnetic key reader consists of a pair of magnetic tape read heads 522 and 524, which interact with the recording tracks 514 and 516 on the magnetic strip of the key, respectively. Read heads 522 and 524 are conventional stereo pickups or read heads. Magnetic read heads 522 and 524 are connected with voltage divider 526 connected across the voltage source. The output of the read head 522 is connected to the input of a differential amplifier 528, and the output of the amplifier is connected to the input of an analog-to-digital (A / D) converter 532. The A / D converter 532 output is connected to a data pin (Do) of the microcomputer 112. Similarly, the output of read head 524 is connected to the input of differential amplifier 534. The output of the amplifier is connected to the input of an analog-to-digital (A / D) converter 536, the output of which is an auxiliary clock (AUX CLK) pin and data pins (D1, D2, D3) of the microcomputer 12. Is connected to. As described with reference to Figures 2a and b, the key reader 38 includes a key switch 58 that operates in the closed state when the key is fully inserted and in the open state when the key is taken out. Thus, data streams generated by the magnetic readheads 522 and 524 from the recording tracks 514 and 516 over the keys are read out by the microcomputer upon retrieval of the keys. The key operation causes the signal voltage to be directed to the read heads 522 and 524 in accordance with the recorded magnetic signals on the respective traps 514 and 516. The signal is amplified by amplifiers 528 and 534, respectively, to produce an enhanced analog voltage signal. The analog signals from the amplifiers 528 and 534 are processed by the A / D converters 532 and 536 to generate corresponding digital signals. The output of the A / D converter 532 supplies a 20-bit serial bit stream to the data pin Do corresponding to the data written to the track 514. Similarly, the output of converter 536 supplies a 20-bit serial bit stream to the microcomputer corresponding to the data recorded in track 516.

As described, microcomputer 112 receives code from its own key in two parallel streams of serial-bit data having 20 bits per stream. The microcomputer's ROM 215 includes a decoder that operates under program control to reformat the incoming code stream for subsequent processing of the keycode. In particular, the decoder decodes the storage format to compare the two serial bit streams with the code stored in the keycode memory 217. For the sake of explanation, the code data read from the key is reformatted by the decoder so that the control code system , The hotel code system, and the first and second keys constitute a code system. The control code consists of 4 bit characters, of which 3 bits indicate the function or level of the key, and the 4th bit is defined as an open key when it is "1", and when it is "0", it defines a key which is a non-open key. It is an open key. The hotel code includes a 4-bit character that determines the hotel and functions as a hostel and code described next. The first key code for the lock consists of 16-bit characters, and the second key code for the lock consists of other 16-bit characters. The stored keycode arrangement is similar to that described with reference to FIG. 2C.

In the second embodiment of the present invention, the connection of the microcomputer with the external circuit is shown in Figs. 3a, b and c except that it has modified the acceptance of the magnetic key reader 520 described with reference to Fig. 16. Same as described with reference. The programming and operation of microcomputer 112 is the same as described above except as described below.

The second embodiment of the present invention, which is locked with a magnetic key, has a higher degree of safety than the first embodiment for various reasons. First, self-coding on the key itself cannot be easily investigated and difficult to reconstruct or copy. Second, the initiation program requires a specific sequence with multiple keys. In particular, when a lockout commences from cold initiation, at least 11 keys must be used in the proper sequence to unlock. The third programming key allows a certain level to be assigned whatever the function requires. Furthermore, a higher degree of safety is provided by code processing. In particular, a decoder for reformatting a serial bitstream into a storage format is inside a microcomputer chip and cannot be accessed except when accessing it through a terminal of the microcomputer. The above features are described in relation to the first embodiment after the eight misreads in a row, the type request, the request for the operation of each keyed key switch, and the condition of turning the knob within the time limit after hitting the correct key code. Is added.

The initiation process of the second embodiment of the present invention is shown in the flow charts of Figs. 17a and b. The initiation process requires the input of the first and second initiation keys sequentially and is characterized by the selective use of programming keys as a means for assigning levels, i.e. defining or redefining the assigned levels in the keycode memory. The operating system initiation block 610 is operative to supply power to the microcomputer and the electronic control circuit.

The power supply state occurs when the battery of the locking circuit is connected and constitutes a cold start of the system. When power is applied, the program proceeds to a test block 612 which determines which part of the system has failed. If it fails, it is fed back to the start block 610, otherwise the program proceeds to input block 614 and waits for insertion of the key. When the key is inserted, the program proceeds to a test block 616 that determines whether the inserted key is the first starting key. If the inserted key is not open, the program returns to block 614 and waits for another key. If the inserted key is opened, the program proceeds to input block 618 and waits for insertion of another key. When a key is inserted, the test block 622 determines whether the key is a second starting key. If the inserted key is not the second starting key, the program returns to input block 614, and if the key is the second starting key, the program proceeds to input block 624 and waits for another key. When the key is inserted, the test block 626 determines whether it is a fault / replace key. If the key is a fault / phase key, the program proceeds to block 628 which sets the same default configuration as described, for example, with reference to the first embodiment of the present invention.

If the inserted key is not a fault / replace key, the program proceeds to determine if the inserted key is a valid program key. The programming keys are pre-written as desired key functions at different levels in the function table 219. If the programming key meets certain criteria when examined by the microcomputer, the programming key operates to set all eight levels in the function table, assigning an open bit configuration to the 4-bit control code. As in the first embodiment, three of the four bits of the control code define one of eight different levels, and the other one determines whether it is an open or non-open key. In the second embodiment, the open bit may be located in any one of the four bit positions. As noted previously, a series of tests initiated in test block 624 are checked to determine if the input key is a valid program key. The test block 634 determines whether there is only one 1 bit in the first column, that is, the 4-bit control code, so that only one open bit is designated in the next decision program.

If the test block 634 determines whether more than one bit of the first column exists, the program proceeds to block 628 which sets a default configuration. If there is only one 1 bit, the program proceeds to test block 636 which determines if one and only one emergency key is present within the program key. When there is no one emergency key or more than one emergency key, the program proceeds to block 628 which sets the default configuration. If there is only one emergency key, the program proceeds to test block 638 which determines whether at least one employee key assignment exists. If there is no more than one employee key, the default configuration is set at block 628. If more than one employee key is assigned, the program proceeds to a test block that determines whether at least one of the safety A or at least safety B keys is assigned by the programming key. If no safety A or B has been assigned, the program proceeds to block 644. Block 644 operates to assign a new configuration. If the rum block 642 determines whether the programming key assigns at least one safety A or safety B key, the program proceeds to the test block 646. The test block 646 determines whether the repair of safety A or safety B is assigned, that is, the other of the two. If not, the program proceeds to block 628 where it sets the default configuration. If the complement is found by block 646, the program proceeds to block 644 which assigns a new configuration, i.e., sets the key function for each of the eight different levels, if the function has been previously written to the programming key. The flow proceeds to an input block 652 waiting for key input. At this point the eight character function table 219 is written by block 644 and sets the desired configuration of eight key levels. It remains in the initiation process step and loads the key code memory 217 as a key code at eight different levels corresponding to eight different key function assignments. The next key desired for the initiation sequence for this purpose is the phase key.

When a key is entered into the input block 652, the program proceeds to a test block 654 that determines whether the inserted key is a phase key with a level designation according to the level assigned by the programming key. If it is not a phase key, the program returns to input block 652 and waits for another key. If it is a phase key, the program proceeds to block 656, which sets a logical deadbolt in response to the insertion of the phase key, and then writes the hotel code into the hotel code embedded in the lock's hotel code memory at the phase key. Proceed to block 658 to allocate a.

At input block 662 the system waits for keystrokes. At this point in the initiation process, the lock is in a ready state for allocating the keycode written in the keycode memory 217 at the location designated by the same pointer as used by the function table 219 according to the allocated memory level. Is placed. The phase-in process of inserting the keycode into the memory is performed by sequential insertion of the key programmed into the lock. The sequence of key insertion must be initiated by the key assigned to the next level of the phase key level. The sequence continues in the numeric order of the key levels, and the sequence continues at level (0) when level (7) is reached. The phase-initiation is initiated at block 662 by entering a key having a next level higher than the phase key. The program then proceeds to block 664 representing the processing of the phase-in sequence to see if the positive level of the key has been inserted. If the positive level of the key is not inserted, the program returns to block 662. If the key is at a positive level, block 664 causes the second key code from the key to be written to code memory 217 at a location or level that corresponds to the key level code encoded above the key. The program then proceeds to a stop routine 234, where the system is put on standby. The test block 666 then determines whether all levels of the key have been phased in.

If all levels have not been phased in, the program returns to block 662 and waits for insertion of another key. When all levels have been performed, the program proceeds to input block 668 and waits for input of another key. At this point in the program, a predetermined key is input to the lock, and the program proceeds according to the normal function except that the door cannot be opened because the logical dead bolt is set. The lock requires an emergency key to easily open the door by the assigned key. When the key is entered at block 668, the program proceeds to test block 672 which determines whether the entered key is an emergency key. If the key is not an emergency key, the program returns to input block 668 and waits for another key. If the key is an emergency key, the program proceeds to block 674 that clears the logical deadbolt when the handle of the lock is rotated. The program proceeds to block 674 and then to the stop routine 234 where the lock is placed in a waiting state. The above-described starting process is executed in the process for use when the lock is installed in the door. However, it may be implemented after it has been installed, and the initiation procedure should be used in case of power failure, such as when annoying checks are made or when a battery is broken.

After the start process as described above with reference to FIGS. 17A and B, the lock is ready for use and can be operated by one of several keys phased to the lock. As a key is inserted into the lock, the microcomputer controls the lock according to the code read from the key. The microcomputer runs under program control. That is, all phased-in keyed programs are represented by the fifth, sixa, b flow charts as above except for the following. The program represented by the flowchart of FIG. 5 is modified so that block 252 enters and stores 10 characters upon retrieval of the key because there are additional 4-bit characters for the host code. Otherwise, the program shown in FIG. 5 is the same in the first embodiment of the present invention. The program shown in FIG. 6A differs from the program of the first embodiment in that it is suitable for checking the hotel code of each key or more. This modification is shown in the flowchart of FIG. 18, which will be described later. As described above, when the program reaches block 276 of FIG. 6B, the program branches to the level subroutine corresponding to the pointer obtained by block 260.

In the second embodiment of the present invention, the same key function may be used as the key function described with reference to the program subroutines described in the first embodiment, i.e., shown in the procharts of Figs. The second embodiment of the present invention also includes additional key functions, which are then considered safety A, safety B, hotel passage, no-op, and the like. Corresponding program subroutines for performing such key functions and read operations will be described later.

The program for hotel passing function is shown in the flowchart of FIG. The program represented by the above flowchart is a part of the program represented by the flowchart of FIG. 6A. In particular, the flowchart of FIG. 6A is modified by inserting the flowchart of FIG. 18 between blocks 260 and 261. FIG. Turn. The program using the first character representing the control code to obtain a pointer or address for the location of the key code in the code memory proceeds to block 260 after the block 260. The test block 704 determines whether the hotel code above the key matches the hotel code stored in the key code memory. If it does not match, the program returns to block 282 (FIG. 6B) and waits for the insertion of another key. If the hotel codes match, the program proceeds to a test block 706 which determines whether the key function as shown in the function table 219 is the hotel passing function. If it is not a hotel passing function, the program proceeds to block 261 and is executed as described above with reference to FIGS. 6A and 6B. If the key function is a hotel passing function, the program proceeds from block 706 to block 708 which activates the solenoid to open the door and then to stop routine 234. As above, hotel pass keys are used to allow hotel guests to enter common areas such as swimming pools, recreation rooms, and the like.

Additional functions such as non-operation, safety A and safety B, etc. are provided by the subroutine in the same way as the functions of the different keys of the first embodiment described with reference to the flowcharts of FIGS. When the program of FIG. 6B reaches block 276 as described above, the program branches to the level subroutine corresponding to the pointer obtained by block 216. A further subroutine of the second embodiment will be described. If the key entered in block 240 of FIG. 5 is an inactive key, the program branches from block 276 of FIG. 6B to block 720 of FIG. 19.

The inactive function is used to indicate the emergency level in which the emergency level is in the keycode memory, and has the effect of programming the level as inactive. In normal operation, the inactive function is not useful for generating an inactive key because it has no function. However, it is useful for safety purposes, where one or more levels are programmed with non-operating functions. As mentioned above, all eight levels in the function table and key memory must be assigned a specific function. Otherwise, the program key is invalid. Therefore, when a lockout is programmed and less than eight different active functions are desired, the remaining levels are assigned inactive functions. If an invalid input is attempted by a key that is accidentally encoded in response to a non-operational function, the computer program responds by going to an error stop routine. When the inactive function is assigned to the selected level, the above levels in the keycode memory 217 are all loaded to one. This closes the operation for a particular level. When the inactive key is inserted in the lock, the microcomputer operates under program control as described with reference to the flowcharts of the fifth, sixa and sixb. In block 276 of FIG. 6B the program branches to the subroutine for non-operational functionality. This is shown as a flowchart of FIG. The program proceeds to block 720 which processes the level code for non-operational functions, and then to block 282 to the error stop routine. The system is therefore in a standby state and is not active until another key is inserted.

For safety purposes, the lock may be programmed to have the above safety A and safety B functions. As described with reference to the initiation process, the safety (A and B) functions must be used at the same time, and if only one is provided to the program key, that key is invalid and inefficient to operate the program. If the safety (A and B) functions are programmed in the lock, the safety (A and B) keys must be used by an authorized person who can open the lock, independent of the logical deadbolt and the actual deadbolt. The key must be inserted with safety A first in the appropriate sequence and then with safety B inserted within a predetermined time interval. This will open the door and the lock will remain set to the logical deadbolt. However, the memory will record the safe B key as the final key to open the door.

The lockout operation with safety A and safety B keys and the control programs for these subroutines will be described with reference to the flowcharts of FIGS. If the key entered in block 240 of FIG. 5 is the secure A key, the program branches from block 276 of FIG. 6B to block 730 of FIG. 20. 20 shows a safe A keying program or subroutine. When a logic deadbolt is set in block 730, the program proceeds to block 732, which lights up an amber LED indicating receipt of the key, and when the 5 second timer expires, the program enters the memory used as the last key. Proceeds to block 736 for erasing the safety A input from, and then to the stop routine 234. If the timer has not expired in test block 734, the program proceeds to test block 738 to determine if a new key has been inserted. If no new key has been inserted, the program returns to block 734. Once the new key is inserted, the program returns to block 240 to process the new key. When a new key is processed, the program is processed by the key type, but the logical deadbolt is set by the secure A key. So if the new key is an employee key, the door will not open because the logical deadbolt is set. Moreover, the insertion of another key has the effect of erasing the secure A key record from the memory used as the final key. If a new key is not inserted before the timer expires as determined by block 734, the program proceeds to block 736, which erases the safety A input as above.

As determined by the test block 738, a new key is inserted at 5 second intervals, and if it is a secure B key, the program will proceed from block 240 of FIG. 5 to block 276 of FIG. 6B. The program then branches to the safety B subroutine of FIG. In this subroutine, block 750 sets a logical deadbolt and the program proceeds to test block 752. This test block determines whether the last key entered is the safety A key. If it is not a safe A key, the program proceeds to the stop routine 234 (after turning on the yellow LED). If the final key is a safe A key, the program proceeds to block 754 to activate the solenoid when the safe B key is an open key, and then to block 756 to turn on the green LED to provide an open indication. Proceed to test block 758 to determine if the timer has expired. If the timer has not expired, the program proceeds to test block 762 which determines if the knob has been rotated. If the knob is not rotated, the program returns to test block 758. When the knob is rotated, the program proceeds to stop routine 234.

A third embodiment of the present invention is shown in FIGS. 23 to 31. FIG. The third embodiment uses a magnetic key as in the second embodiment, which includes a connection code of more than a key, an on-line program of a decision, an operation additional operation function having a 40-bit or 64-bit code of more than a key, and the intention of opening a door. It features time recording.

As in the second embodiment, the lock is suitable for the use of eight different key functions. However, more than eight different types of key functions are available even if only eight types are programmed to the lock at a time. In addition to the key function described in the second embodiment, the following types of keys can be programmed.

Key Form K, Office Latch Function: When the office hardware is attached, this function actuates the solenoid and the lock to assert the hard air with a latch. The amber LED lights up during the lock sequence. If no office hardware is attached, the function assignment is made as an auxiliary function.

Key Type L, Office Unlatch Function: When office hardware is attached and the hardware is not already in the open state, the function operates the solenoid and the lock terminal to assign hardware by unlatch. The green LED lights up during the open sequence. If HaduAir is already open, the green LED will light up for a short time. If no office hardware is attached, the function assignment is made as an auxiliary function.

Key Type M, Office Toggle Function: If office hardware is attached, it operates either as an office lock function or an office open function depending on the state of the hardware limit sensor of the function. If no office hardware is attached, the function assignment acts as a secondary function.

Key Type N, Safety C: The above function is logical dead bolt but not actual dead bolt. An additional software switch is used to assert the logic deadbolt and bypass the actual deadbolt. This is a single key card which is distinguished from the safety A and safety B functions described above.

Key Type O, Low Detect Toggle: This function resets all levels lower than this function's level. When this function is executed, other levels that are numerically lower in the function assignment table are prohibited. The red LED is used for indication when the prohibition status is set and preempt the low battery indication.

Key Type P, High Lock Toggle: This function locks all levels higher than the level. When this function is executed, any other level higher in the function assignment table is prohibited. The red LED is used for indication when the prohibition status is set and preempt the low battery indication.

Key Type Q, Redefinition (Programming) Key: This key has a 4-bit run mode character instead of a hotel code character. The redefine key is used for on-line programming of a lock.

Key Type R, Assignment Key: This key is used to reassign Hotel Code and Run Mode.

As described in detail below, the function assignment is convertible by means of a lock contributing to the operating state, ie by an on-line program. This is done by redefining keycards. No change in function assignment will be made unless the key card meets certain requirements tests. It does not allow conversion of emergency level assignments or open bit assignments.

In addition to the above specification, the third embodiment provides a door opening history, that is, a time base feature for pseudo time recording of the door opening. Additional hardware is provided to allow the unlocked timeline to be tracked for several days. The circuit required to provide the time base is shown at 223 degrees. In the third embodiment, the microcomputer decision control circuit has the changes described below with reference to FIG. 23 and is the same as described above with reference to FIG. 3A.

입력핀에 직접 접속된다. 또한 출력단(824)은 조정 다이오드(826)를 통하여 마이크로컴퓨터의 개시입력핀(START)과 접속된다. 마이크로컴퓨터의 리셋트 스트로브 출력핀(RESETSTROBE)은 저항-용량 회로망(828)을 통하여 클록(820)의 레셋트 입력단에 접속된다. 개시 스위치(58)는

입력핀과 직접 접속되며, 조정 다이오드(832)를 통하여 마이크로컴퓨터의 개시 입력핀(START)와 접속된다.As shown in FIG. 23, the external clock is connected to the microcomputer 112. As shown in FIG. The clock 820 is composed of an oscillator having an external frequency determining circuit 822 and a ripple counter for performing a binary bonsai function. Block 820 generates a positive going pulse at output stage 824 at a rate of 1 pulse per minute. The output terminal 824 is an SI input pin tube of the microcomputer 112

It is directly connected to the input pin. The output terminal 824 is also connected to the start input pin START of the microcomputer through the adjustment diode 826. The reset strobe output pin (RESETSTROBE) of the microcomputer is connected to the reset input terminal of the clock 820 through the resistor-capacitive network 828. Initiation switch 58

It is directly connected to the input pin and is connected to the start input pin START of the microcomputer through the regulating diode 832.

입력핀에 인가된다.

입력은 직렬버퍼플러그를 다음에 기술하는 바와 같이 4번째 펄스를 받을 때마다 세트되도록 한다. SI입력은 마이크로컴퓨터가 리셋트펄스를 리셋트 스트로브 출력핀으로부터 클록(820)의 리셋트 입력까지 송신하도록 한다. 상기 리세트 펄스는 클록 카운터를 효율적으로 소거하여 그것이 다음 1분동안의 출력 클록펄스를 다시 계수하도록 한다. 동시에 클록출력(824)이 낮아지고 마이크로컴퓨터(112)는 대기상태로 변환된다. 키이 삽입에 의하여 발생하는 마이크로컴퓨터용 개시신호는 클록(820)에 의하여 발생하는 개시신호 전반에 걸쳐서 처리가 행해진다. 이것을 위하여, 키이스위치(58)가 닫히므로서 발생하는 논리적인 고신호는 다이오드(832)를 통하여 개시 입력핀(START)에 인가되며 동시에 클록신호에 대하여 키이스위치 우선순위를 부여하는 차단요구 신호로서

단자에 인가된다. 결과적으로, 키이가 클록펄스 간격동안 삽입되면, 키이는 통상방식으로 처리될 것이며, 키이데이터의 처리중에 클록 펄스는 유지될 것이며, 클록은 키이데이터 처리를 완료한 후까지 리셋트되지 않을 것이다. 리세트 펄스 후에 마이크로컴퓨터는 대기상태로 복귀할 것이다.The real time clock 820 is generally used by the microcomputer 112 to provide a time base for writing open to the history buffer. For this purpose, time signals are recorded approximately every four minutes at defined intervals. When a clock pulse occurs at the output 824 of the clock 820, the clock pulse is applied to the start input pin START through the diode 826 and the microcomputer is switched from the dash state to the on or run state. . In addition, the clock pulse is SI and

It is applied to the input pin.

The input causes the serial buffer plug to be set each time a fourth pulse is received, as described below. The SI input causes the microcomputer to send a reset pulse from the reset strobe output pin to the reset input of the clock 820. The reset pulse effectively erases the clock counter so that it counts the output clock pulses for the next minute again. At the same time, clock output 824 is lowered and microcomputer 112 transitions to a standby state. The microcomputer start signal generated by the key insertion is processed throughout the start signal generated by the clock 820. For this purpose, a logical high signal generated by closing the key switch 58 is applied to the start input pin START through the diode 832 and at the same time as a blocking request signal which gives the key switch priority to the clock signal.

Is applied to the terminal. As a result, if the key is inserted during the clock pulse interval, the key will be processed in the normal manner, the clock pulse will be maintained during the processing of the key data, and the clock will not be reset until after the key data processing is completed. After the reset pulse the microcomputer will return to standby.

In order to perform the office lockout function of the third embodiment, the microcomputer 112 is provided with the following additional pin connections. Pin A is connected below via switch 852 to be used to connect with the office lock. When the lock is in the locked state, the lock detector 854 which is high is connected to the input pin B. The open detector 856 is connected to the input pin C and goes high when the lock is in the unlocked state. Four output pins are also provided to control the activation of the actuator of the lockout bolt. These output pins are Unlocked Strobe Pins (ULS), Unlocked Holding Pins (ULH), Locked Strobe Pins (LS), and Locked Holding Pins (LH). These output pins function as a lock / open output as described above, and output pins for controlling the excitation of the solenoid 66 in pull-in mode and hold-in mode. 04,05). When the ULS pin is true, the ULH pin will be true at the same time during initial operation, and the non-locking strobe signal at pin (ULS) is short-lived, and after it is false, the non-locking hold signal at pin (ULH) will be It remains true for the time to allow the unlocked state to be achieved.

Similarly, the LH pin is true at the same time when the LS pin is true. The locked strobe signal is a short-period pulse and after it goes false, the locked hold signal at pin LH remains true for a predetermined time to allow the locked state to be achieved. Office locks that are locked and unlocked have a variety of forms. For example, a lock of the type described with reference to FIGS. 2A and 2B is a locking pin 64 with an opening pin for keeping the locking pin in an unlocked state, that is, an open state, and a locking pin for retaining the locking pin in the locked state. Can also be used as. The opening pin is operated to release the locking pin by the open solenoid and to engage the locking pin by the return spring. Similarly, the lock is provided with a locking pin which is operated to release the locking pin by the locking solenoid and which is operated to engage the locking pin by the return spring. Such an arrangement allows the clamping pin to be held in an extended (locked) or contracted (opened) position, i.e. locked or open, without exciting the solenoid or other actuator.

Thus, the actuator does not impose any drain current on the battery except when the lock is operated to change its state between the lock and open states. A motor or the like that drives the lead screw to operate the locking pin that is inherently held in either the locked or unlocked position may be used without other mechanisms having a locked and open state engaging the actuator. Thus, pins 04,05 and pins ULS, ULH, LS, LH will be used according to the specific mechanism for locking and opening the office lock.

In addition, the RAM of the microcomputer 112 has additional registers as shown in FIG. 24 to carry out the features of the three embodiments. For use in conjunction with the time base provided by the clock 820, the RAM includes a serial buffer flag 838, a 3-digit counter 842, and a history buffer 844. The RAM also includes a high cell register 845, a low cell register 847, a hotel code register 849, and an override flag 848. The use of these registers and flags will be described in detail later. The RAM also includes a run mode register 846 that holds the 4-bit characters assigned by the redefinition key when used for such function assignment. The four bits of the run mode register are: Bit (0) determines the action of the low battery function. When the bit is set low, the employee key functions as above. That is, after the low battery condition and 4 keys are inserted, the keys must be inserted twice to open the door. When bit 0 is high, the key does not open the door until the battery condition is corrected. Bit 0 is called the "rule" bit. Bit 1 of the run-mode character determines the card's identification by the full reader, which contains the safety limits of the safety C function and inappropriate data. Bit 1 is considered as a "C volt" bit. If the bit is low, invalid key data will be identified as a single strobe with an amber LED if the previous insert of an invalid key fails to reset to the protection mode described above, ensuring sufficient cycle count and immediate reinsertion of the key. Done.

In addition, if these bits are low, a lower level of safety is provided to the safety C function so that the logic deadbolts are ignored and the actual deadbolts are commanded. If bit 1 is high, a higher level of safety is provided so that an inappropriate key does not provide any return to the operator. That is, there is no LED signal. The safety C function also works the same as the emergency key, except that opening the door does not clear the logic deadbolt. Bit 2 of the run mode character indicated by the "code 64" bit determines the data format of the binary key, but does not change the punch card data format. If this bit is low, the key data is interpreted in the manner established for the 40-bit code described with reference to the second embodiment. If this bit is high, the 64-bit format of the third embodiment is used. Bit 3 of the runmode character determines the range and distribution of the locked entry history. It is represented by the "Dual Time Clock (DO RTC)" bit. If these bits are low, the lock allocates memory for the simulated checks and repeat entry counters and recognition codes associated with each of the last 15 entries. If this bit is high, the entire history is reduced from 15 to 8, and every entry has a three character counter that reads in relation to the time of the last entry of the associated key.

The operation and features of the third embodiment will be described with reference to the flowcharts of FIGS. 25 to 31. FIG. The starting procedure of the third embodiment is the same as that of the second embodiment described with reference to FIGS. 17A and 17B. After the initiation procedure, the lock is ready for use and can be operated by either of the keys phased on the lock. As a given key is inserted into the lock, the microcomputer controls the lock according to the code read from the key. Program control of all phased-in keys is indicated by the flowcharts of Figs. 5, 6a and b described with reference to the second embodiment except as described below. The program indicated by the flowchart of FIG. 5 is modified such that block 252 inputs and stores 16 characters for the retrieval of the key when bit 2 (code 64 bits) of the run mode character is high. This enables 64-bit format. When 64 bits of code are low, a 40-bit format is possible and the program of FIG. 5 remains unchanged. In this third embodiment, the program indicated by the flowcharts of FIGS. 6A and 6B is modified as described below.

If the first code does not match the keycode of the previously issued key, the means for validating the key is provided by another code in memory so that the new key performs its function. In the second embodiment described with reference to Figs. 6A and 6B, a new key, such as a guest key, assumes the first code and the second code. The second code is a new keycode for that particular key and must be stored in the lock's keycode memory that allows the key to open the lock after first use. The first code on the key is the key code assigned to the aforementioned key as the previous guest key. In the second embodiment, which is radiated with reference to FIGS. 6A and 6B, the new key used for the first time will open the lock if the first code matches the code previously stored in the keycode memory by the previous key. .

However, for example, if a guest key issued to a previous guest key for a given room does not continue to insert the key in the lock, the key code stored in the keycode memory is the same as the one entered by the insertion of the last key used in the lock. It remains in the state. Therefore, in the second embodiment, since the first code or the second code does not match the code stored in the keycode memory, it is possible to be in an inoperative state. This is minimized by providing a suitable link code on each new issue key other than the first code. The link code is the key code of the key generated before the key where the first code is generated. The link code is preferably the code of the key generated immediately after the last issue. This link code feature is only available when code 64 bits of the run mode character is high, which means that the 64-bit format is used. The operation of the lock with the link code feature will be described with reference to FIGS. 25A and B. FIG.

The program indicated by the flowcharts of FIGS. 25A and B is similar to that indicated by the flowcharts of FIGS. 6A and b. However, the program differs in that it is provided for use of the link code above the key. The programs of FIGS. 23A and B are used for the operation of the lock by different keys phased in at different levels of keycode memory. As described with reference to FIG. 5 when the key data includes valid reading, the program proceeds from block 257 of FIG. 5 to block 260 of FIG. 25A. The program blocks in Figs. 25A and B are the same as the program steps in Figs. 6A and 6A in which the same reference characters are used. The program steps in the block 260 are pointers for the positions of key codes stored in the keycode memory 217, or After using the first character representing the level code in the function table 219 of the memory for obtaining the address, the test block 260A matches the code in which the second code of the key is stored in the key code memory, and the latter code is 1. Determine whether or not. In such a case, the program proceeds to block 274 which clears the error counter and then to block 276. At this point the program branches to the subroutine for the level corresponding to the pointer.

If the answer to test block 260A is NO, then the program proceeds to test block 261 to determine if the last key is a phase key. If the key is a phase key, the program proceeds to test block 264, otherwise the program proceeds to test block 262 which determines whether the first code of the key matches the code stored in the key code memory. . If there is a match, the program proceeds to test block 264. If it does not match, the program proceeds to test block 262A which determines whether the key's link code matches the key code stored in the key code memory. If the link code does not match the key code, the program proceeds to test block 282 which increments error counter 239_, and then test block 284 determines whether the error coefficient is greater than 8. If not, the program takes the system to standby and proceeds to the stop routine 234, which waits for the next key .. If the error count is greater than 8, block 288 blocks of FIG. 5 until 5 seconds have elapsed. 252 sets a delay timer in state control memory 223 for 5 seconds to prevent data from being read from the key.

In the test block 262A, if the link code of the key is the same as the code stored in the key code memory, the program proceeds to the test block 264. From this point in time, the program represented by blocks 264, 266, 278, 280, 234, 268, 270, 274 and 276 is the same as described above with reference to Figures 6a and b. The program can be summarized as follows for the linkcode feature. If the second code of the key coincides with the keycode memory and is not all 1's, the program proceeds to the level subroutine corresponding to that key. Otherwise, if the key matches the first code memory of the key, the second code is written to the key code memory, the "new" flag is set, and the program proceeds to the level subroutine corresponding to that key. If the first code does not match the memory and the link code matches the memory, the same result is obtained as if the first code matches the memory. If none of the keycodes match the memory, the error counter is incremented and the reset proceeds to the stop routine.

When the program arrives at block 276 of FIG. 25B, the program branches to the level subroutine corresponding to the pointer obtained by block 260. FIG. The same keys as described in the second embodiment may be used in the third embodiment. For the key function described with reference to the second embodiment, the subroutine remains the same for this third embodiment except as follows. The subroutine of FIG. 9 is modified by erasing blocks 370, 374, 376, 372 and 234 and replacing the subroutine of FIG. The subroutine of FIG. 10 is changed by erasing blocks 392, 396, 398, and 234 and replacing the subroutine of FIG. The subroutine of FIG. 11 is changed by erasing blocks 414, 416, 412, 418 and 234 and replacing the subroutine of FIG. The subroutine of FIG. 18 is changed by erasing blocks 708 and 234 and replacing the western routine of FIG.

This third embodiment also includes additional key functions or forms referred to herein as office toggle, office open, office lock, safety C, low lock toggle, and high lock toggle. The secondary key also contains different subroutines for function. Several keys contain another subroutine for this function. This additional key function and corresponding program subroutine for validating the lockout operation will be described. Office Key This function is provided for the lockout operation commonly used in office doors. These locking devices have bolts that are locked or opened, i.e., held in extended mode retracted state for the locked and unlocked states, respectively. To provide the ability for office functions, microcomputer 112 has pin A coupled through switch 852 to be used in conjunction with office locks. The microprocessor also has an input pin B coupled with a lock detector 854 that proceeds when the lock is in a locked state, and a pin coupled with an unlocked detector 856 that proceeds when the lock is in an unlocked state. Has (C) In the office lock, the locking key excites the solenoid and the locking portion keeps the bolt locked. An unlocked key acts to excite the solenoid if the lock is not already unlocked, leaving the locked portion in the unlocked state. The toggle key operates to unlock the lock if it is locked and to lock the lock if it is in an unlocked state. The program for the office function is represented by the flowcharts of FIGS. 26A and B. FIG. If the key input to block 240 of FIG. 5 is a lock key, an unlock key or a toggle key, the program branches from block 276 of FIG. 25b to block 860 of FIG. 26a.

The test block 860 determines whether the logic dead bolt is set. If the logic dead bolt has been set, the program proceeds to block 862 which illuminates the yellow LED and then to stop routine 234. If the logical dev bolt is not set, the program proceeds to test block 864 which determines whether the actual dead bolt is set. If the actual dead bolt has been set, the program proceeds to block 862 which illuminates the yellow LED and then to the stop routine 234. If no actual deadbolts are set, the program proceeds to test block 866 which determines whether the lock is in the locker lock, ie, the office hardware pin A is in a logic low state. If the lock is not an office lock, the program proceeds to block 868 to excite the solenoid and then to stop 234. If the lock is an office lock, the program proceeds to test block 870 which determines whether the key is an unlocked key. If it is an unlocked key, the test block 872 determines whether the lock is unlocked. If the clasp is in the unlocked state, block 874 lights the green LED. If the lock is not unlocked, the program proceeds to block 876 which sets the unlock pin to unlock the unlock actuator.

If test block 870 determines that the key is not an unlocked key, then test block 878 determines whether the key is a locked key. In the case of the lock key, the test block 880 determines whether the lock is in the locked state. If the lock is in the locked state, block 882 turns on a yellow LED. If not locked, block 884 sets the pin to engage the locked actuator in the locked state.

If test block 878 determines that the key is not a locked key, the program proceeds to test block 886 which determines whether the key is a toggle key. If it is a toggle key, the test block 888 determines whether the lock is in the unlocked state. If the lock is in the unlocked state, the program proceeds to block 884 which engages the solenoid in the locked state. If the lock is in the locked state, the program proceeds to block 890 where the lock pin is set to excite the unlocked actuator to the unlocked state.

If test block 886 determines that the key is not a toggle key, the program proceeds to test block 892 to determine if the key is an emergency key. If it is an emergency key, block 894 excites the solenoids in an unlocked state and the program proceeds to block 896. Block 896 engages the solenoid in the locked state. At this time, block 896 maintains the logic dead bolt is administered when the knob is not rotated, and maintains the logic dead bolt when the knob is rotated.

If test block 892 determines that the key is not an emergency key, the program proceeds to test block 902 which determines whether the lock is in the unlocked state. In the non-locked state, block 904 lights the green LED. Otherwise, block 906 unlocks the office lockout. At this point, the program proceeds to a test block 908 which determines whether the knob is rotated. If the knob did not rotate, the test block 910 determines if the 5 second timer has expired. If the timer has not expired, the program returns to the test block 908. If the timer expires, the program proceeds to block 912 to unlock the office lock.

For safety reasons, the lock can be programmed to provide a safety C function as mentioned above. In the second embodiment, the safety A and safety B functions are provided as described above. The safety A and B keys may be used by the delegate to open the lock regardless of the state of the logical dead boat and the actual dead bolt. The keys may be inserted in the appropriate order as above and within a predetermined time interval between insertions. This will open the door and the lock will be left with the logic deadbolt set.

In a third embodiment of the invention, the safety C function is provided to allow a lower level of safety than safety A and B and is operated with a single key. The safety C function has the ability to ignore logic deadbolts but does not put the actual deadbolts into low safety mode. In addition, by setting the C volt bit of the run-mode character, the safety C function causes the logical dead bolt to appear and pass the actual dead bolt. The operation of the lock with the safety C key and the control program for this subroutine will be described with reference to the flowchart of FIG.

If the key entered in block 240 of FIG. 5 is a secure C key, the program will branch from block 276 of FIG. 25b to test block 920 of FIG. 27. Test block 920 indicates that the key is an open key. If it is not an open key, block 922 illuminates an amber LED, if it is an open key, the program proceeds to experimental block 923, which determines if a logical deadbolt has been set, and responds to the response. Regardless, the program proceeds to test block 924, which determines whether the C-bolt bit of the run-mode character is logical high, if the C-bolt bit is not 1, the test block 926 determines whether the actual devvolt is set. If the actual dead bolt is set, block 922 turns on the amber LED, if the actual dead bolt is not set, the program proceeds to test block 928. Test block 924 is C bolt bit Is logical high If so, the program passes through the actual deadbolt test block 926 and then proceeds to block 932 only after setting the logic dead bolt at block 930, and block 934 lights the green LED. The program then proceeds to test block 936, which determines if the 5 second timer has expired, if the timer has expired, the program proceeds to stop routine block 234.

If the timer has not expired, the test block 938 determines whether the knob has been rotated. If the knob has not rotated, the program returns to test block 936. If the knob is rotated, the program proceeds to a stop routine 234.

For safety reasons, the lock may be programmed to provide a high lock or low lock function. For example, the hotel may wish to have some key function that cannot be operated on a provisional base. To this end, the high lock key and subroutine are provided to temporarily disable or close all key functions (except the safety function) at a level higher than that of the high lock key. Likewise, low-keys and subroutines are provided to close the key (except for the safety function) at a level lower than that of the low-keys.

After either key is used to perform the closing function, the closing function is canceled by reinsertion of the key so that all level operations are restored.

The operation of the lock with the high lock and low lock keys and the control program for such a subroutine will be described with reference to the flowcharts of FIGS. 28A and b. If the key entered in block 240 of FIG. 5 is a high lock key, the program will branch from block 276 of FIG. 25B to block 950 of FIG. 28A. Block 950 may be used to clear the red RED to indicate a closed state. (The red LED cannot be used for low battery display during closing.) The program proceeds to block 952 which reads the number of levels stored in the high cell register of the RAM.

At this time, the test block 954 determines whether the number of levels stored in the high cell register 845 is equal to the key function position, that is, the number of levels of the high-lock key in the register 219. If not the same, block 956 stores the key's functional location in the high cell register.

At this time, block 958 sets a red LED, and the program proceeds to test block 970. If test block 954 determines that the number of levels in the high cell register is equal to the key function position, this indicates that the high lock key is reinserted to cancel the high lock function. Block 962 then stores 1 in the high cell register. This ensures that the number of levels in the high cell is greater than the number of key levels, and none of the key levels are closed. The program then proceeds to block 970 of the auxiliary subroutine of FIG. 29 described above.

Briefly, the auxiliary subroutine tests whether the current level is prohibited by high or low determination. If prohibited, the program proceeds to a stop routine, otherwise the solenoid is excited.

The low decision keying subroutine is shown in the flow chart of FIG. 28B. This flowchart is identical to that for a high-lock key, except as described below, and for simplicity, only the parts that are not identical will be described. The same reference characters are used in FIG. 28B for the blocks corresponding to FIG. 28A, except that a prime (') is added to each reference number in FIG. 28B. The differences between the high and low decision subroutines are as follows. Block 952 'reads the number of levels stored in the low cell register of RAM. At this time, the test block 954 'determines whether the number of levels stored in the low cell register 847 is the key function position, that is, the number of levels of the low lock key of the register 217 is the same. If it is not the same, the function position of the block 956 'key is stored in the low cell register. At this time, block 958 'sets a red LED, and the program proceeds to test block 970.

If the test block 954 'determines that the number of levels in the low cell register is equal to the key function position, this indicates that the low reset key is reinserted to minimize the low reset function. Then, block 962 'stores 0 in the low cell register.

This ensures that the number of levels in the low cell is less than the number of key levels, and none of the key levels are closed. From this point, the program proceeds to block 970 and becomes the same as that of FIG. 28A.

If a high lock or low lock key is used in the system described above, all keys are processed according to the subroutine of FIG. Because of the high and low crystallization of these subroutines, this is a new auxiliary subroutine for this third embodiment.

When the key is entered in block 240 of FIG. 5, the program branches from block 276 of FIG. 25b to block 970 of FIG.

Block 970 determines if the key functional position of the key is less than the number of levels stored in low cell register 847. If small, the program branches to block 972 which lights the yellow LED and proceeds to stop routine 234. If test block 970 determines that the key function position is not less than the number of levels in the low cell register, the program determines whether the key function position is greater than the number of levels stored in high cell register 845. Proceed to). If large, the program branches to block 972 which lights the yellow LED and proceeds to stop routine 234. If it is not large, the program proceeds to test block 976 which determines if a logical deadbolt has been set. If the logic deadbolt is set, the program proceeds to block routine 972 that turns on the amber LED to stop routine 234. If no logic deadbolts are set, the test block 978 determines whether the actual deadbolts are set.

If the actual dead bolt has been set, the program proceeds to block 972 where the yellow LED is lit and then to stop routine 234. If no actual dev bolt has been set, block 980 excites the solenoid, and then the program proceeds to stop routine 234. As such, the subroutine of FIG. 29 operates to be closed in accordance with either the high lock or the low lock function key. As described above, the normal operation is restored so that neither key is closed by reinserting either the high or low key.

As mentioned above, the second embodiment of the present invention has a special feature for the program of the key function. This allows the assignment of certain key functions to any desired level in key code memory. The initiating procedure described above with reference to FIGS. 17A and B provides a requirement for sequentially entering the first and second initiating keys and assigning a level such as to limit or limit the assigned level of keycode memory. It was characterized by the selective use of programming keys as a means for.

This initiation procedure also permits the assignment of hotel codes of lockout memory. This programming feature has the advantage that it is flexible in assigning hotel codes and levels to other facilities, and also allows for level assignments and changes in hotel codes in a given facility. However, the second embodiment has a disadvantage in that the change cannot be made without going through the lock disconnection and the prestart procedure such as power removal. The third embodiment of the present invention has the disadvantages mentioned above. The third embodiment of the present invention overcomes the above mentioned disadvantages and provides a feature of on-line programming for making some changes. For this purpose, means are provided for responding to certain data sequences and for making selective changes. An optional change is to program a program key to assign a new function for a different level and to allocate a bit of turnmode characters and hotel codes by the assign key.

On-line programming of the third embodiment of the present invention can be initiated at any time after the lock has been phased in as described with reference to FIGS. 17A and 17B. An online programming subroutine will be described with reference to Figures 30a, b and c.

In general, the on-line programming subroutine requires a code sequence of two different keys followed by the insertion of an override key. The first key is the first starting key and has no function other than initiation, the second key is an emergency level key (either an emergency key or a phase key), and the redefining key can be either a programming key or a reallocation key. It may be.

Referring to FIG. 30A, a key is entered into the on-line programming subroutine block 1000. The test block 1002 determines whether the input key is the first starting key.

If it is not the first starting key, the program proceeds to block 260 with the subroutines of FIGS. 25a and b to process the key data described above. If the input key is the first start key, the program proceeds to block 1004 that lights the yellow LED and then to block 1006 that sets the timer to 20 seconds.

At this time, the test block 1008 determines whether the timer is terminated for the insertion of another key and the program proceeds to the stop routine 34. If the timer does not expire, the program proceeds to test block 1010 to determine if another key has been inserted.

If another key has not been inserted, the program returns to block 1007. If another key is inserted, the program proceeds to test block 1012 where the inserted key determines whether an emergency level key is granted. If the inserted key is not an emergency level key, the program proceeds to block 260 of the subroutines of Figs. 25a and b to process the key data. If the key entered is an emergency level key, the program proceeds to block 1014 to light the yellow LED and then to block 1016 to reset the timer to 20 seconds. At this time, block 1018 sets the "override" flag 848 if the emergency level key is an open key.

At this point, the program proceeds to a test block 1020 that determines if the timer expires. When the timer expires, the program proceeds to stop routine 234. If the timer has not expired, test block 1022 determines whether another key has been inserted before the timer expires. If another key is not inserted, the program returns to block 1020.

If another key is inserted, the program proceeds to test block 1102 to determine if the redefine flag is set.

The third key, i.e., the key inserted into the test block 1022, will be tested to determine if the key is an overriding key. If the redefinition flag determined by the test block 1024 is set, the third key will be treated as a programming key, otherwise the third key will be a reassignment key allowing reassignment of run mode and hotel code characters. Will be treated as such. If the flag is set, the program proceeds from test block 1024 to test block 1026, which determines whether there is only a single one bit in the first character.

Otherwise, the key is not qualified as a programming key and the program proceeds to block 260 of the subroutines of FIGS. 25a and b. If there is only one single bit in the first character, the key is qualified as a programming key and the program goes to block 1028 which governs the emergency code of the memory and the current open bits to ensure that there is no change in this code. It then proceeds to a test block 1030 that determines whether the key meets the criteria for programming keys described above with reference to FIGS. 17A and B. If the key does not meet the criteria, the program proceeds to block 260 of FIG. 25A. If so, the program proceeds to block 1032, which assigns the new function to another different level in accordance with the coding of the programming key.

At this time, block 1033 turns on a yellow LED and the program proceeds to stop routine 234.

If test block 1024 determines that the redefine flag is not set, the program proceeds to test block 1034 to determine if there is no one-bit in the first character. If there is no one bit, the program goes to stop 234. If there is any one bit in the first character, the test block 1036 determines whether the key contains the same five characters as the first starting key to further ensure that the key is entitled as an allocation key. If not, the program proceeds to a stop routine 234.

If embedded, block 1038 stores the newly entered turn-mode characters in register 846, and then block 1040 stores the newly entered hotel code in hotel code register 849 and then the program accepts. Proceed to block 1042 to light a yellow LED to display.

As mentioned above, the third embodiment provides a time base for recording the last 8 entries or door openings. Information about each of the eight rooms is recorded in the history buffer 241. When the real time clock bits of the turnmode character are set high, the microprocessor works with the real time clock 820 to record data about each open of the history buffer. In particular, the final recognition code (control code) is recorded. If the recognition code is entered by the same key, the re-entry counter is incremented. If the keys have the same recognition code but different ID codes, the ID codes are written to the buffer. In accordance with this entry, a read of the 3-digit real time clock counter 842 is entered into the history buffer. Thus this data for each of the last 8 entries can be written to the history buffer and examined upon reading of the buffer.

The operation of the microprocessor with real time clock 820 and three digit real time clock counter will be described with reference to the flowchart of FIG. The program indicated by this flow chart is prohibited whenever the start pin of the microprocessor goes high as indicated by block 1050. The test block 1052 determines if a high input is generated by the key switch 58.

If so, the program proceeds to block 260 of the flowchart of FIG. 25A to process the key data. If the key is not generated by the switch, the program proceeds to test block 1054 that determines if a high input is generated by the real time clock 820 on input 824. If not generated by the real time clock, the program proceeds to stop 234, and if generated by the real time clock, the test block 1056 determines whether the input pin SI is high. If high, block 1058 sends a reset signal from the reset strobe of the microprocessor to the reset pin of clock 820. If pin SI is not high, the program proceeds to test block 1060 which determines whether the serial buffer flag 838 is true, i.e., if the serial buffer holding four coefficients is full. If not true, the program proceeds to stop routine 234. If true, the program proceeds to block 1062 that increments the three digit real time clock counter and then to stop routine 234.

Although the description of the present invention has been described with reference to a particular embodiment, it is not limited thereto. It will be appreciated that various modifications and changes may be made by those skilled in the art.

Claims (30)

A lock having locking means for operating the lock in a locked or open state, a RAM having a plurality of assigned key codes stored at different positions respectively, and a control program stored for programming the control of the microcomputer A microcomputer composed of a ROM, a control code performing a different function from each other, a plurality of different types of keys composed of a first key code and a second key code, and a code stored in the microcomputer in connection with the microcomputer A lock code system comprising: a key reader configured to interact with a predetermined selected key among the keys, and an electric control actuator for coupling the lock means with the locked / open output of the microcomputer. A register is formed in the RAM, and the control program is stored in the ROM. A function table composed of a main program and a plurality of subroutines stored in each of these positions, each having a different pointer, assigned to a memory address of one of the subroutines, and having a plurality of pointers equal to the number of positions of the keycode memory. Decoding means for storing in one of the memories and for assigning to a selection position of the keycode memory and a selection position of the function table corresponding to the control code, operating under program control combined with the control code, The microcomputer is operated under the program control of the main program according to the code input from the key selected by the key reader, storing the control code in the control code storage register, and First and second key codes by the decoding means Compared to the assigned keycode at the selected keycode memory position, if matched, the microcomputer under program control of the subroutine in the memory address specified by the function table position selected by the decoding means. Operating system according to the function of the selected key. 2. The apparatus according to claim 1, wherein said ROM includes a starting program stored therein for programming the control of said microcomputer, and means for assigning a pointer corresponding to a desired key function to each position of a function table. Install a start phase-in key with code for starting the phase-in sequence of the start program by operating the microcomputer, and run the microcomputer under start program control, And a key code is stored in a key code memory corresponding to a control code after receiving an input from the key reader in the form of a continuous key. 3. The lockout system according to claim 2, wherein said assignment means is formed by a default routine of said start program. The storage device according to claim 2, wherein said function table is stored in said RAM, and said allocating means is formed of a programming key having a pointer stored at each different position of said function table, and stored from said programming key. And a means for reading a pointer from said function table. 2. The lockout system according to claim 1, wherein the number of subroutines is stored in the ROM more than the number of storage positions of the function table. The RAM of claim 1, wherein a logic deadbolt flag for prohibiting the lock output of the microcomputer when the logic deadbolt flag is set in the RAM, and an opening for prohibiting the open output when the open flag is not set. A memory register for storing a flag is included, and in the ROM, an emergency key stored therein forms a subroutine, and a lock means detector for determining when the lock means is operated in an open state is connected to the input terminal of the microcomputer. In order to activate the above-mentioned emergency key subroutine, a control code having an open bit for setting the open flag in the idle state is formed in the emergency key, and the microcomputer is placed under program control of the emergency key subroutine. Operation, set the logic deadbolt flag above, and Is operated irrespective of the state of the dead bolt flag and clears the logic dead bolt flag when the detector indicates that the locking means is operated in an open state. 2. The RAM of claim 1, wherein a logic deadbolt flag for prohibiting the closed output of the microcomputer when the logical deadbolt flag is set in the RAM, and an opening for prohibiting the open output if the open dead flag is not set. A memory register for storing a flag is included, and the above-mentioned stored key is included in the ROM, so that the open flag is not set to a logic state in order to operate the above-mentioned reverse subroutine. A control code having one open bit is formed in the phase key so that the microcomputer is operated under the program control of the phase subroutine to set the logical deadbolt flag, and if another key is inserted into the key reader. When read by, the keycode is stored at a position corresponding to the control code. Immigration system to write in Mori. The method of claim 1, wherein the locking means is formed of a manually operated real dead bolt, and the actual dead bolt detector is connected to the input of the microcomputer to determine whether the actual dead bolt is in the closed state. When a flag is set in RAM, a logical dead bolt memory storage register is formed to prohibit open output of the computer, and in the above ROM, a guest key subroutine having a control code for operating the guest subroutine stored therein is created. And operating the microcomputer under the program control of the guest subroutine to activate the actuator when the logical deadbolt flag is not set and the actual deadbolt flag is open. system. The microcomputer according to claim 1, wherein the RAM includes a prohibition register including a plurality of prohibition bits for prohibiting the open output of the microcomputer by the guest subroutine when the prohibition bit is set, and the microcomputer when the flag is reset. A storage register for ginger the open flag to prohibit the open output of the controller, and a management subroutine stored therein is formed in the ROM, and the management flag is opened in order to operate the management subroutine. And a control code including an open bit for resetting the logic state to a logic state, and operating the microcomputer under program control of the administrator subroutine to set all prohibited bits. 9. The RAM according to claim 8, wherein the RAM includes a prohibition register having a plurality of prohibition bits for prohibiting the open output of the microcomputer when the prohibition bit is set according to the control code of the guest key, and the second code of the guest key or more is keyed. Forming a new bit flag to indicate that the key is to be written to the code memory by the current reading of the microcomputer and operating the microcomputer under program control of the guest key subroutine so that when the new key flag is set A locking system that clears the prohibited bit corresponding to the control code. The battery of claim 1, wherein the battery voltage sensor is connected to the pressure terminal of the microcomputer, and the RAM is an open flag for prohibiting the open output of the microcomputer when the flag is reset, and for indicating the operation of the locking means. Form a memory register for storing the knob-turn flag, an employee key counter for counting the number of times the knob-turn flag is set by use of the employee key, and in the ROM, the employee key subroutine stored there And forming a control code in the employee key including an open bit for setting an open flag into a logical state for operating the employee key subroutine, and setting the microcomputer in the employee key subroutine. The battery voltage sensor When the pressure is low, the employee key increments the counter, and if the last key used is not the employee key and the count recorded by the employee key counter exceeds the predetermined number, the system is placed in a standby state and the final key is If the employee key is not set and the logical dead bolt is not set and the actual dead bolt is not set, the open output is switched to the open state, and when the battery is low while the employee key is used to open the door a predetermined number of times, A lockout system in which the employee key is used twice in succession. 2. The ROM of claim 1, wherein a single key subroutine having a control code for operating the primary key subroutine stored therein is formed in the ROM, and the second code of the key above the primary key is stored in the RAM. A new bit flag is formed to indicate when to set writing to the keycode memory by reading, and the microcomputer is operated under program control of the primary key subroutine, and a new flag is set and the logic dead bolt is And a locking system for switching the open output of the microcomputer to an open state if it is not set and an actual dead bolt is not set. 2. The computer program according to claim 1, wherein each key has a hotel code stored therein, wherein said RAM is formed with a hotel code register for storing an assigned hotel code, and said microcomputer is under program control of said main program. And a hotel code read from the key is compared with an assigned hotel code to operate an error stop routine if it does not match. 2. The key of claim 1, wherein each key has a hotel code stored therein, and the RAM forms a hotel code register for storing the assigned hotel code, and wherein the key selected by the key reader is set to the microcomputer. It operates under program control of the main program according to the code inputted from the above, stores the control code in the control code storage register, determines whether the hotel code above the key matches the assigned hotel code, and matches If so, it is determined whether the control code corresponds to the hotel passing function, and if so, the closing system for switching the closed / open output of the microcomputer to an open state. The RAM of claim 1, wherein the RAM includes a memory register for storing a logic deadbolt flag to prohibit the closing / opening of the microcomputer when the flag is set, and the ROM includes a first safety key stored therein. The subroutine and the second safety key include a subroutine, and the first safety key forms a control code for operating the first safety key subroutine, and the microcomputer controls the program of the first safety subroutine. And the logic dead bolt flag is set to wait for another key to be input, and the second safety key forms a control code for operating the second safety key subroutine. The computer is operated under the program control of the second safety subroutine, the logic dead bolt flag is set above, and the last key entered is 1 a locking system to enable the safety key, if one actuator. 2. The system of claim 1, wherein a false read counter is included in the RAM, and the microcomputer is operated under program control of the main program to increase the false read counter when a key is read and it does not match. If a delay timer is included in the RAM, and the microcomputer is operated under program control, and the count of the erroneous reading counter exceeds a predetermined value, after the predetermined time delay set by the delay timer, A lockout system that prevents data from being read from the key. 2. The ROM according to claim 1, wherein the ROM includes a stop routine in the program stored therein, and connects a lock means detector for determining when the lock means is operated in an open state with the input terminal of the microcomputer. The RAM includes a number of open repeat counters for recording the number of times the door is opened sequentially by a predetermined number of different keys used to open the door, and a key type register for recording the last key number in the form of an open key. And operating the microcomputer under program control of the stop routine to increase the repetition counter when the locking means is activated and when the control code of the key is the same as the control code of the last open key. Immigration system that allows data to be accessed externally for analysis purposes. 2. The apparatus of claim 1, wherein a locking means detector for determining when the locking means is operated in an open state is connected to an input of the microcomputer, a periodic timer is formed in the RAM, and the microcomputer is connected to the main computer. Operate under program control of the program to open the cycle timer when the key is inserted into the key reader, and to perform another operation when the code means is compared and the lock means does not operate within the predetermined time period. Preventive locking system. The key of claim 1, wherein each key has a link code stored therein, and the selected key includes a first key code that is the same as a second key code of a key of the same level issued immediately before the selection key, and a key of the selected key. A program of the main program which is identical to a second code of a key of the same level issued two or more times immediately before and forms a link code stored therein, wherein the microcomputer of the micro responds to the code input from the selected key. Operated under control, and compared with the keycode, if it does not match, operate the microcomputer to compare the linkcode with the keycode assigned to the keycode memory location, and if there is a match When the microcomputer is operated under program control and the second code is written to the above position in the key code memory, A locking system to operate in accordance with the key feature of the selected system. The office lock according to claim 1, wherein in the case of an office lock in which the lock is kept in a closed or open state, an input pin set in a predetermined logic state is provided in the microcomputer, and the office lock subroutine is provided in the ROM. A plurality of keys of different types into an open key, a closed key, and a toggle key to operate the microcomputer under program control of an office key subroutine to determine whether the input pin is in the above logical state. And in such a case, it is determined whether the key inserted into the key reader is an open key, a closed key, or a toggle key, so that the open key activates the electrically controlled actuator according to the closed key or the toggle key. system. 21. The microcomputer of claim 20, wherein the microcomputer has a locked / unlocked output stage for controlling the activation of the electric control actuator and an unlocked for controlling the activation of the non-locking device for keeping the locking means in the unlocked state. An output stage and a locking output stage for controlling the activation of the locking device for keeping the locking means locked are installed, and the microcomputer is operated under the program control of the office locking subroutine so that the inserted key is not locked. And determining the case of the key and generating a signal at the locked / unlocked output stage, the locked output stage, and the non-locked output stage corresponding to the non-locked state. 21. The non-locked output terminal according to claim 20, wherein the microcomputer has a locked / unlocked output stage for controlling activation of the electric control actuator and an unlocked output stage for controlling activation of the non-locking apparatus for keeping the locking means in an unlocked state. And a locking output stage for controlling the harmonization of the locking device for keeping the locking means locked, and operating the fraudulent microcomputer under the program control of the office locking subroutine, so that the inserted key is locked. And a lock key to generate a signal at a locked / unlocked output stage, a locked output stage, and a non-locked output stage corresponding to the locked state. 21. The microcomputer of claim 20, wherein the microcomputer has a locked / unlocked output stage for controlling the activation of the electric control actuator and an unlocked for controlling the activation of the non-locking device for keeping the locking means in the unlocked state. An output stage and a locking output stage for controlling activation of the locking device for keeping the locking means locked are installed, and the microcomputer is operated under the program control of the office locking subroutine so that the inserted key is toggled. In the case of the toggle key, the locked / unlocked output stage in the case of the toggle key, the locked output stage, and the non-locked state when the lock is locked, or the non-locked state corresponding to the locked state when the lock is not locked. Locking system that generates a signal at the output. The RAM according to claim 1, wherein the RAM includes a memory register for storing a logic deadbolt flag for prohibiting the locked / unlocked output of the microcomputer when the flag is set, and the ROM is stored internally. A primary key safety subroutine is formed, a control code for operating the primary key subroutine is formed in the safety key, and the RAM includes a C bolt bit set to logic 1 when the actual dead bolt is ignored. The microcomputer is operated under program control of the primary key subroutine to determine when the C volt bit is logic 1, and if it is irrelevant to the state of the logic dead bolt, set the logic dead bolt to Locking system for activating the control actuator. 2. The RAM according to claim 1, wherein the RAM includes a high cell register for storing the number of levels corresponding to different positions of the key code memory, and the ROM includes a high cell subroutine stored therein. Forms a control code for operating the subroutine, operates the microcomputer under program control of the high cell subroutine, and assigns the number of levels stored in the high cell register to the high cell key of the ROM. Determine if the number is equal to the number of levels, and if not equal, store the number of levels corresponding to the high cell key in the high cell register, and the selected one of the above subroutines stored in the RAM when the selected key is inserted The microcomputer is operated under program control of a subroutine of To determine yisel higher than the number of levels stored in the register, if more to have a locking system so as to prohibit the operation of the locking system according to the features of the selected key. 2. The RAM of claim 1, wherein the RAM includes a low cell register for storing the number of levels corresponding to different locations of the keycode memory, and the ROM includes a low cell subroutine stored therein. And a control code for operating the subroutine in the low cell key, and the microcomputer is operated under program control of the low cell subroutine so that the number of levels stored in the low cell register is stored in the low cell key. Determine whether the number is the same as the allocated level, and if not equal, store the number of levels corresponding to the low cell key in the low register, and the selected one of the above subroutines stored in the RAM when the selected key is inserted. The microcomputer is operated under program control of a subroutine of When determining whether to lower than the number of levels stored in the registers, less has a locking system so as to prohibit the operation of the locking system according to the features of the selected key. 2. The computer program according to claim 1, wherein the reprogramming routine is stored in the ROM, and a first key, a second key, and a third key are formed, and the microcomputer is operated under program control to operate the first and second keys. Determines whether the key is inserted in the sequential name, and if so, determines whether the second key is an open emergency level key, and if it is an emergency level key, determines whether the third key is the next inserted key, And a key corresponding to a desired key function according to the data of the third key or more, to be assigned to each position of the function table. 28. The lockout system according to claim 27, wherein when the third key is not an open key, the microcomputer is operated under program control to reassign the selected code to the code register. 2. The apparatus of claim 1, wherein a clock for generating a periodic clock pulse is coupled with a start input of the microcomputer to cause the microcomputer to start operation upon generation of a clock pulse or in response to operation of the start switch. Means for connecting a key operation switch with the start input, connecting a counter for receiving a coefficient corresponding to the number of clock pulses with the clock output terminal, and installing a history buffer in the RAM and recording the coefficient. Is installed in the above history buffer, but whenever the lock is not locked, the data is recorded in the history buffer at the same time so as to identify the key used for the non-locking. 30. The apparatus of claim 29, further comprising means for separating the initiation switch and the clock output from each other, said initiation switch being a

The start signal of the start switch advances to the start signal of the clock output by connecting to a pin, and configures the clock as a ripple counter for generating the clock pulse, and the ripple counter in response to the clock pulse. A lockout system incorporating means for clearing.

Images