WO1998024998A1

WO1998024998A1 - Electronic key and electronic lock

Info

Publication number: WO1998024998A1
Application number: PCT/CN1997/000139
Authority: WO
Inventors: Xianghou Zong
Original assignee: Sun, Meng
Priority date: 1996-12-04
Filing date: 1997-12-04
Publication date: 1998-06-11
Also published as: CN1154435A; CN1044630C; JPH10169273A; AU5186898A

Abstract

The present invention relates to an electronic key (100) and an electronic lock (200). Said key (100) and lock (200) are supplied with circuit part, respectively. The circuit part of the electronic key (100) mainly includes input circuit (2), micro-processor (1) and infra-red transmitting circuit (3) which are connected in sequence. The circuit part of the electronic lock (200) mainly includes infra-red receiving circuit (7), micro-processor (8), code memory (5), code comparing circuit (6), drive circuit (9) and the electromagnetic valve (10) of the lock. Said infra-red receiving circuit (7) is connected to micro-processor (8). Code comparing circuit (6) is connected to code memory (5) and micro-processor (8). Drive circuit (9) is connected to micro-processor (8), the electromagnetic valve (10) of the lock and alarm and recorder communicating circuit (11). The feature of the present invention is that the electronic code of the instruction for lock acting and the code of making these instructions operational are dependent on the electronic key (100).

Description

Electronic key and electronic lock The present invention relates to an electronic pair lock, in particular to a digital electronic key and electronic lock, which is characterized in that: an electronic lock operation instruction and an electronic secret code capable of causing the instruction to function are composed of electronic The key to decide.

Background technique

The electronic key and the electronic lock in the prior art are shown in FIG. 1 and are circuit block diagrams thereof. The braking code of the electronic lock 200 is determined by the electronic lock 200, and the braking code of the electronic lock 200 is determined. It is transmitted to the electronic key 100 for storage in various ways. At this time, the electronic key has the function of braking the electronic lock, and once the secret code of the electronic key is determined, its body cannot be changed in any way (as shown in the figure The electronic key in the form of a magnetic card, such as: "10237982", is fixedly written in the electronic key memory of 10G, and the electronic key 200 is read into the electronic key 200 by the electronic key reading device during shackle). To change the password, you must first change the password of the electronic lock 200, and then generate a new electronic key 100 (such as a magnetic card type electronic key currently used in hotels). That is to say, the ordinary electronic key 100 can only correspond to one electronic lock 200, which is made once and does not have versatility. It can be said that in such a conventional device, the electronic lock 200 is active, the electronic key 100 is passive, and all functions of the electronic key 100 are determined by the electronic lock. The disadvantages of this electronic key 100 are not universal except Also, because the secret code is naked (the secret code is always naked in the electronic key 100), it is easy to be decoded, so the security is not high.

Summary of the Invention

An object of the present invention is to provide an electronic key and an electronic lock with functions such as data lock and storage, and an electronic key to play an active role in response to the shortcomings of the prior art. The function code is determined by the electronic key.

Another object of the present invention is to provide an electronic key whose key can correspond to multiple electronic locks. Keys and electronic locks use the functions of the electronic key to store and set data, and set multiple passwords on the electronic key, which can be used to unlock multiple electronic locks, which is universal.

To achieve the above object, the present invention adopts the following measures:

The electronic key and the electronic lock of the present invention include: an electronic key and an electronic lock; a circuit part is respectively provided on the electronic key and the electronic lock; the circuit part of the electronic lock includes: a power supply, a microprocessor, a password memory, and a password comparison circuit , Drive circuit, solenoid valve with electronic lock and communication circuit for alarm and recording;

It is characterized by:

The circuit part of the electronic key includes: a human input circuit, a microprocessor, an infrared signal transmitting circuit, and a power supply for power supply;

The circuit part of the electronic lock further includes: an infrared signal receiving circuit;

The infrared signal receiving circuit for receiving the signal sent by the infrared signal transmitting circuit is connected to the microprocessor of the electronic lock, so as to receive the operation instruction signal and input the secret code in real time; the cryptographic control circuit is connected to the secret memory and the microprocessor; The password is stored in the password memory under the control of the password, or the password is compared by the password comparison circuit; the driving circuit is connected to the microprocessor, the electromagnetic valve of the electronic lock and the communication circuit for alarm and recording; For processing, if the password is correct, then the driving circuit is turned on to drive the electromagnetic valve yoke of the electronic lock. If the password is incorrect, communication and other functions are processed through the alarm and recorded communication circuits.

The input circuit may include a key circuit for inputting an input signal and a display circuit for displaying the input signal.

The input circuit may further include a touch circuit to input numbers, various characters, Chinese characters and graphics by hand, and store the digital signals in the microprocessor of the electronic key.

Both the infrared signal transmitting circuit and the infrared signal receiving circuit may include a transmitting and receiving circuit and an infrared signal / digital signal conversion circuit connected thereto.

The transmitting and receiving circuit may include: a light emitting diode capable of transmitting infrared signals and a receiving red External photocell.

The password comparison circuit may be composed of a data buffer circuit and a logic comparison circuit, and is used to complete the comparison between the password stored in the electronic lock and the password given by the operator.

The communication circuit for alarm and record can adopt RS485 communication protocol circuit.

The microprocessor of the electronic key is provided with an operation program for setting, storing and erasing secret codes, an infrared signal transmitting program and a yoke lock program.

The microprocessor of the electronic lock is provided with a program for storing and checking secret codes, and a program for alarming and recording.

The password memory may be provided with a storage space for storing at least two passwords, and each password is coordinated with a corresponding instruction to implement control and management of the password. In the initial state, the password is zero.

Overview of the drawings

FIG. 1 is a circuit block diagram of a conventional electronic key and electronic lock.

FIG. 2 is a circuit block diagram of an electronic key and an electronic lock according to the present invention.

3 is a circuit diagram of an infrared signal transmitting and receiving circuit of an electronic key and an electronic lock according to the present invention. FIG. 4 is a schematic diagram of a work flow of an electronic key according to the present invention.

FIG. 5 is a schematic diagram of the working process of the electronic lock of the present invention.

FIG. 6 is a schematic diagram of a working process of an electronic key and an electronic lock according to an embodiment of the present invention.

Best Mode of the Invention

The inventive concept and structure of the present invention are described in detail with reference to the embodiments and the drawings as follows:

As shown in FIG. 2, it is a circuit block diagram of an electronic key and an electronic lock according to the present invention. The electronic key 100 includes: a microprocessor 1, an input circuit 2 connected to the microprocessor 1, an infrared signal transmitting circuit 3, and a power source 4. Electronic lock 200 includes: infrared signal receiving circuit Ί, password memory 5, password comparison circuit 6, microprocessor 8, driving circuit 9, electromagnetic valve 10 for electronic lock, communication circuit 11 for alarm and recording, and power supply 1 2 .

In the electronic key 100, the input circuit 2 receives an input signal (including a password) of an operator key. And instruction signals), and input the input signal to the microprocessor 1, the microprocessor 1 inputs the input signal to the infrared signal transmitting circuit 3, and transmits it; the power supply 4 provides the working voltage for each circuit part.

In the electronic lock 200, when the infrared signal receiving circuit 7 receives the infrared signal emitted by the infrared signal transmitting circuit 3, the signal is input to the microprocessor 8, and the microprocessor 8 specifies according to the received operation instruction, or The password is stored in the password memory 5, or the password is compared with the password comparison circuit 6 to determine whether the password is correct. If the password is correct, the drive circuit 9 is turned on to drive the solenoid valve 10 of the electronic lock. The communication circuit 11 performs processing of communication and other functions, and the power source 12 provides working voltage for each circuit part.

The input circuit 2 in this embodiment includes a key circuit, a display circuit, and a touch circuit to implement various input methods: using keys to input instructions, and using keys or touch circuits to input characters, numbers, graphics, etc .; among them, a password comparison circuit 6 is composed of a data buffer circuit and a logic comparison circuit, which is used to complete the comparison between the password stored in the electronic lock 200 and the password given by the operator; the communication part 11 for alarming and recording can use the RS485 communication protocol circuit.

As shown in FIG. 3, it is a circuit diagram of an infrared signal transmitting and receiving circuit of an electronic key and an electronic lock according to the present invention. In this embodiment: the infrared signal transmitting circuit 3 of the electronic key 100 and the infrared signal receiving circuit 7 of the electronic lock 200 are Similarly, the circuit includes: a transmitting and receiving circuit 26 and an infrared signal / digital signal conversion circuit 25 connected thereto; the transmitting and receiving circuit 26 is composed of a light emitting diode 27 and a photo tube 28; the infrared signal / digital signal conversion of the electronic key 100 The circuit 25 obtains the digital signal to be transmitted from the microprocessor 1, converts it into an infrared signal, and transmits the digital signal to the transmitting and receiving circuit 26. The transmitting and receiving circuit 26 sends an infrared signal to the electronic lock 200 through the light emitting diode 27; After the transmitting and receiving circuit 26 of the lock 200 receives the infrared signal through the photo tube 28, it transmits the infrared signal to the infrared signal / digital signal conversion circuit 25. After the infrared signal / digital signal conversion circuit 25 converts the infrared signal into a digital signal, It is transmitted to the microprocessor 8; the infrared signal / digital signal conversion circuit 25 and the transmission in the embodiment of the present invention The receiving circuit 26 respectively and TFDS3000 TEMIC TOI 3000 integrated circuit manufactured. As shown in FIG. 4, it is a schematic diagram of the working flow of the electronic key 100 of the present invention. First, steps 401 and 402 are performed: a password is input and displayed from the input circuit 2 and step 403 is performed; an operation instruction is input from the input circuit 2 and executed Steps 404 and 405; under the control of the microprocessor 1, an infrared signal is transmitted to the electronic lock by the infrared signal transmitting circuit 3, so as to control the functions of opening, closing and setting of the secret code of the electronic lock, so as to remind the user to take precautionary measures in a timely manner .

As shown in FIG. 5, it is a schematic diagram of the working process of the electronic lock of the present invention. Starting from the initial state 5 G1, step 502 is first performed: the infrared signal receiving circuit 7 receives the infrared signal transmitted from the infrared signal transmitting circuit 3, The signal is input to the microprocessor 8, and step 503 is executed. The microprocessor 8 judges the function of receiving the signal. If the function of receiving the signal is an on or off instruction of the electronic lock, then step 504 is performed, and the password in the password memory 5 is compared. To verify that the password is correct, perform steps 5 to 5 to realize the opening or closing of the electronic lock, and connect the communication circuit 11 for recording. When performing step 503, if the function of receiving the signal is to store and erase the password, execute Step 506: Compare the password in the password memory 5 to verify that the password is correct, then execute step 507, implement storing, erasing the password, and connect the communication circuit for recording; if the password is incorrect, proceed to step 508: switch on for Alarm, record communication measures.

As shown in FIG. 6, it is an embodiment of a use state of an electronic key and an electronic lock according to the present invention. This embodiment is an electronic key and an electronic lock for an apartment management system. As shown in the figure, in the initial state 15, the stored passwords of level I → N in the password storage circuit 5 are all 0, and the execution sequence is as follows: First, perform step 13 on the digital electronic key 100: the manager inputs the instruction and the level I Password, or resident input instruction and level II password, and related person or special case input instruction and ΙΠ-N level password; then after the signal is sent to the electronic lock 200, go to step 16: Receive the input from the administrator After receiving instructions and level I passwords, or receiving instructions from occupants and level Π passwords, or instructions from related parties or special circumstances, and ΐΠ-N level passwords, according to the operator's instructions, if it is sent to storage To remove the secret code instruction, the corresponding personnel's operation steps 14, 17 and 18 should be performed respectively. Among them, the holders of Class I passwords have the right to remove the contents of the storage of Class II-N passwords, and the holders of Class II passwords have the right to ΙΠ-Ν level password storage Tolerance can be eliminated, and so on; and the holders of passwords at all levels can only modify their own passwords to achieve hierarchical management. In addition, in step 16, according to the opening or closing instructions sent by the operator, perform steps 19, 20, or 21 respectively; perform the corresponding level check, and if the check is correct, perform step 22: perform the door opening or closing action ; Otherwise, execute step 24: implement actions such as alarming and recording.

Because the electronic key of the electronic key itself can be stored or deleted according to the instructions, there is no possibility of being used by others after the electronic key is lost. If the electronic lock is to be instructed, it can be re-entered in another electronic key. The signal originally set by the person can restore the function instantly.

In the password memory 5, I, Π, III to N are several levels of passwords, level I is a password that can be set by senior managers, level Π is a password that can be set by only lower-level managers, and levels III-N The managers at the lower level agree to keep the passwords for the managers (or affiliates) at a lower level or use them in the abnormal state.

The function of using the first-level password is to send the same password as the first-level password to a senior manager using an electronic key to open or close the door of the person under management. Command signals necessary for passwords, and all passwords or all passwords except level I are eliminated (restore the initial state).

The function of using the level Π password is that the second level management personnel can not only make their own door open or close the command action, but also enable the level ΙΙ-N to obtain the instruction electric signal necessary to start the cipher, and issue The instruction causes all the passwords except I and E to be eliminated individually or together.

The function of using the level IIII password is to enable the related person to instruct the opening or closing of the door, and also to generate the command actions such as precautions and alarms used in the abnormal state set by the occupant. However, it does not have the function of eliminating any password.

In summary, the present invention has the following effects:

1. The electronic password in the present invention is set in an electronic key, that is, the electronic key itself can generate an electronic password independently and change the password instantly, so it has randomness and versatility.

2. The electronic key can generate multiple electronic codes and various set command signals, while the electronic lock can Correspondingly, multiple electronic passwords are stored and various commands are received, so one key can correspond to multiple electronic locks.

3. The method of using the electronic key and the electronic lock of the present invention is simple, and can be used by people of all ages and classes.

4. The electronic key and the electronic lock of the present invention have low manufacturing cost, and therefore are easy to be popularized and popularized.

5. The probability of the electronic password used by the electronic key and electronic lock of the present invention can be infinitely increased, it will be difficult to decipher, and the function and password can be set at will according to the wishes of the person, so it has strong confidentiality, as described below:

The code used in the present invention is an electronic code that uses numbers, various letters, Chinese characters, or graphics as a unit. If a number is used as a unit, and it is assumed to be 5 digits, then the use of this set of numbers is converted to an electronic code. The probability is 1/1 0 0, 0 0 0. If the letter is used as a unit, and it is assumed that 5 English letters or 5 Japanese kana are used, such as "My key" or, then the set of English letters or Japanese kana is converted into an electronic password. The probability of using the English letter is 1 / 5 2 5 = 1/3 8 0, 2 0 4, 0 3 2 (the total number of uppercase and lowercase letters in the English alphabet is 5 2). The probability of using a Japanese kana is 1/1 0 0 5 = 1/1 0 1 0 (Japanese Hiragana Business Card Kana (100 in total). If you take Chinese characters as a unit, it is also assumed to be five, such as "season of cherry blossoms". Calculated according to the total of JIS first-level Chinese characters (2, 965 characters) and JIS second-level Chinese characters (3, 390 characters) announced in Japan, the available probability will be 1/6, 3 5 5 5, this is already an amazing probability. Therefore, the electronic codes used by the electronic key and the electronic lock of the present invention are difficult to decipher.

6. The electronic key used by the electronic key and the electronic lock of the present invention does not need to be set by a computer. It is an independent system in itself, and it can completely complete all work instructions and password settings from the initial state So it can be used very easily and conveniently in all situations where opening and closing devices are present.

Industrial applicability The electronic key and the electronic lock of the present invention have low manufacturing cost, simple structure, novel function, and circuit components can use existing integrated circuits. Therefore, the electronic key and electronic lock are suitable for automation and mass production, and are easy to be popularized and popularized.

Claims

Rights request

1. An electronic key and electronic lock, comprising: an electronic key and an electronic lock; a circuit part is respectively provided on the electronic key and the electronic lock; the circuit part of the electronic lock includes: a power supply, a microprocessor, a password memory, and a password comparison Circuit, drive circuit, solenoid valve with electronic lock and communication circuit for alarm and recording;

It is characterized by:

The circuit part of the electronic key includes: an input circuit, a microprocessor, an infrared signal transmitting circuit, and a power supply for supplying power in order;

The infrared signal receiving circuit for receiving the signal transmitted by the infrared signal transmitting circuit is connected to the microprocessor of the electronic lock to receive the operation instruction signal and input the secret code in real time; the cryptographic control circuit is connected to the secret memory and the microprocessor; Under control, the password is stored in the password memory in real time, or the password is compared by the password comparison circuit; the driving circuit is connected to the microprocessor, the electromagnetic valve of the electronic lock, and the communication circuit for alarm and recording; For processing, if the password is correct, then the driving circuit is turned on to drive the electromagnetic valve yoke of the electronic lock. If the password is incorrect, communication and other functions are processed through the alarm and recorded communication circuits.

2-The electronic key and electronic lock according to claim 1, characterized in that:

The input circuit includes a key circuit for inputting an input signal and a display circuit for displaying the input signal.

3. The electronic key and electronic lock according to claim 2, characterized in that:

The input circuit further includes a touch circuit to input numbers, various letters, Chinese characters and graphics by hand, and store the digital signals in the microprocessor of the electronic key.

4-The electronic key and electronic lock according to claim 1, wherein:

The infrared signal transmitting and receiving circuit and the infrared signal receiving circuit both include a transmitting and receiving circuit and An infrared signal / digital signal conversion circuit connected to it.

5-The electronic key and electronic lock according to claim 4, characterized in that:

The transmitting and receiving circuit includes: a light emitting diode capable of transmitting infrared signals and a photocell receiving infrared signals.

6. The electronic key and electronic lock according to claim 1, wherein:

The password comparison circuit is composed of a data buffer circuit and a logic comparison circuit, and is used to complete the comparison between the password stored in the electronic lock and the password given by the operator.

7-The electronic key and electronic lock according to claim 1, wherein:

The communication circuit for alarm and record adopts RS485 communication protocol circuit.

8-The electronic key and electronic lock according to claim 1, wherein:

The microprocessor of the electronic key is provided with an operation program for setting, storing and erasing secret codes, an infrared signal transmitting program, and an unlocking and locking program.

9. The electronic key and electronic lock according to claim 1, wherein:

1 0. The electronic key and electronic lock according to claim 1, wherein:

The password memory is provided with a storage space for storing at least two passwords, and each password is coordinated with a corresponding instruction to implement control and management of the password. In the initial state, the password is zero.

1 1 The electronic key and electronic lock according to claim 8, characterized in that:

The working procedure of the electronic key is: inputting and displaying a secret code by an input circuit, and inputting an operation instruction signal; under the control of a microprocessor, the infrared signal transmitting circuit transmits the secret signal and the operation instruction signal.

12. The electronic key and electronic lock according to claim 9, characterized in that:

The working procedure of the electronic lock is: first, the infrared signal receiving circuit receives the infrared signal transmitted from the infrared signal transmitting circuit, inputs the signal to a microprocessor, and the microprocessor judges the function of receiving the signal. The function is the opening or closing instruction of the electronic lock. The password in the device is checked for correctness, then the electronic lock is turned on or off, and the communication circuit for recording is connected; if the function of receiving the signal is to store and delete the password, beij: compare the password in the password memory, If the password is checked correctly, the storage, erasure of the password command is implemented, and the communication circuit for recording is switched on; if the password is checked incorrectly, the alarm and recording communication circuit is switched on.