JP2005514546A - Apparatus and method for transmitting data and electrical energy between a key and a cylinder of a lock - Google Patents

Abstract

  An apparatus and method for transmitting data and electrical energy between a key and a cylinder of a lock comprises a first electromagnetic circuit associated with the key and a second electromagnetic circuit associated with the cylinder. And the second electromagnetic circuit interconnects upon insertion of the key into the cylinder to provide at least electrical energy from a primary winding of the first circuit to a secondary (winding) of the second circuit. It has connection means for forming a third electromagnetic circuit for transmission.

Description

  The present invention relates to an apparatus and method for transmitting data and electrical energy between a key and a lock cylinder.

  It is well known that many types of locks currently exist on the market, generally comprising a rotating part, a fixed part, a mechanical and / or electromechanical double lock and a key for operating (opening and closing) the lock.

  In electromechanical locks, there are typically electrical contacts that transmit both data and electrical energy from the key to the lock cylinder and vice versa.

  From the above definition, it is easy to understand why the use of electrical contacts in electromechanical locks creates a number of problems.

  For example, when a lock is installed in a contaminated environment, all of the conditions that can occur in these conditions are due to the presence of dust, oxides, liquids, lubricants and similar products that adhere to either the key or the lock Including problems, it becomes impossible to transmit energy and data via electrical contacts.

  Therefore, in order to always obtain proper performance in an electromechanical lock, the electrical contacts of the lock must be cleaned frequently.

  The above definition results in keeping the electrical contacts clean with frequent and expensive maintenance operations to ensure electrical conductivity of the electrical contacts.

  Such a situation causes major problems, for example in the case of large buildings with a large number of locks.

  An object of the present invention is to eliminate the above-mentioned problems in known electromechanical locks.

  In this context, an important object of the present invention is to create an apparatus and method for transmitting electrical energy and data without the need for ohmic contact between the key and the lock cylinder.

  Yet another object of the present invention is to create an apparatus and method for transmitting data and electrical energy where dust, oxides, liquids, lubricants and similar products are present.

  Yet another object of the present invention is to create an apparatus and method that allows the use of locks even in high contamination level environments.

  It is yet another object of the present invention to create an apparatus and method in which maintenance of the lock circuit is virtually unnecessary, thus achieving a significant reduction in planned maintenance costs.

  It is yet another object of the present invention to create an apparatus and method that allows a high level of electrical transmission from the key to the lock cylinder and vice versa.

  A final but important object of the present invention is to provide a reliable lock that is low cost and requires little maintenance.

  The object and the other objects are an apparatus and method for transmitting data and electrical energy between a key and a cylinder of a lock, in a first electromagnetic circuit associated with the key and a first associated with the cylinder. The first and second electromagnetic circuits are interconnected when the key is inserted into the cylinder, and the first circuit primary winding is used to connect the second circuit to the second circuit. This is achieved by an apparatus and method comprising a connection system that forms a third electromagnetic circuit that transmits at least electrical energy to the secondary [winding].

  Still another object of the present invention is to provide a method for transmitting data and electrical energy between a key and a lock cylinder, wherein the key having a first electromagnetic circuit is replaced with the cylinder having a second electromagnetic circuit. Inserting the first electromagnetic circuit, operating the third electromagnetic circuit obtained by combining the first and second electromagnetic circuits, the same frequency band as the second electromagnetic circuit, and the first and second electromagnetic circuits. Transmitting the key code to the cylinder by applying a time variable voltage to the first electromagnetic circuit having an amplitude proportional to the ratio between the turns of the two electromagnetic circuit windings; A method comprising the step of recognizing a code and the step of sending electrical energy in the form of a magnetic flux for activation of the shutter of the lock.

  With particular reference to the drawing, a device for transmitting data and electrical energy between a key 1 and a cylinder 3 of a lock not shown is a first electromagnetic circuit A1 associated with the key 1 and a second associated with the cylinder 3. The electromagnetic circuit A2.

  The first and second electromagnetic circuits A1 and A2 are connected to each other when the key 1 is inserted into the slot A3 of the cylinder 3, and the first winding A6 of the first circuit is connected to the second circuit of the second circuit. The secondary winding A7 includes connection means for forming a third electromagnetic circuit 4 for transmitting data and electrical energy.

  In short, when the first electromagnetic circuit is combined with the second electromagnetic circuit, this forms a transformer in which the energy applied to the primary winding A6 is transferred to the secondary winding A7 in the form of magnetic flux, The magnetic flux is suitably routed to a circuit that is advantageously formed using a ferromagnetic material circuit or a ferrite.

  Advantageously, the use of ferrite makes it possible to use high frequency in a band suitable for data transmission and having high energy transfer performance using high frequency.

  In particular, the first and second electromagnetic circuits comprise first and second rods A4 and A5, respectively, which are consequently connected to each other.

  In the case of the illustrated example, the first and second rods are also consequently wound by coils A6 and A7.

  In this way, the third electromagnetic circuit 4 is formed by the first and second magnetic circuits being mutually coupled to form a closed circuit.

  FIGS. 5 and 6 show different embodiments of the circuit arrangement according to the invention.

  The coil A11 of the first electromagnetic circuit A9 has a variable frequency with the same or different frequency band as the second electromagnetic circuit A8 and an amplitude proportional to the ratio between the number of turns of the primary winding A11 and the secondary winding A10. Upon receiving the voltage, it becomes possible to transmit data from the key 1 to the cylinder 3 and vice versa.

  In short, when the key is inserted into the cylinder, a magnetic flux is generated via the primary winding A11, and this magnetic flux is sent to the ferromagnetic circuit, and the electromotive force is induced by passing through the secondary winding A10. It is supplied to electronic circuits and actuators arranged in the cylinder.

  As mentioned above, data is transmitted using one of the methods of classical electrical transfer theory such as frequency modulation, amplitude modulation, pulse width modulation, phase modulation or other methods, so that from key to cylinder and Data can be transmitted in the opposite direction.

  Data is transmitted in digital and / or analog form.

  Finally, it should be emphasized that the windings are made using appropriately insulated conductor wiring.

  Yet another object of the present invention is a method for transmitting data and electrical energy between a key and a standard cylinder of a lock as shown in the schematic of FIGS.

  In particular, this method consists of inserting a key comprising a first electromagnetic circuit A1 into a cylinder comprising a second electromagnetic circuit A2.

  Thereafter, the third electromagnetic circuit 4 is activated by the combination of the first and second electromagnetic circuits.

  The key code applies a time variable voltage to the first electromagnetic circuit having the same or different frequency band as the second circuit and an amplitude proportional to the ratio between the turns of the windings of the first and second electromagnetic circuits. Is transmitted to the cylinder.

  At this point, the key code is recognized, the necessary electrical energy is transmitted in the form of a magnetic flux and the lock actuator is activated.

  In addition to actuating the actuator, the energy obtained from the second magnetic circuit coil must supply power to the electronic circuit for decryption of the electronic key code.

  Finally, the circuit is switched off, possibly even with a key inserted after rotation of the actuator.

  Advantageously, in the apparatus and method for transmitting data and electrical energy between a key and a lock cylinder, the signal applied to the first magnetic circuit coil is energized to the second magnetic circuit winding. And data.

  In fact, the device according to the invention has proven to be particularly advantageous in overcoming all the disadvantages of electromagnetic keys that mainly use electrical contacts.

  The invention according to this concept can be subject to numerous modifications and changes within the scope of the inventive idea, and furthermore, all components can be replaced by technically equivalent elements.

  Indeed, the size of the materials and elements used can vary according to the needs and the state of the art in the field.

FIG. 1 is a perspective view of a key according to the present invention. FIG. 2 is a longitudinal cross-sectional view of a key according to the present invention. FIG. 3 is a perspective view of a lock according to the present invention. FIG. 4 is a plan view of the first and second electromagnetic circuits according to the present invention. FIG. 5 is a perspective view of a different embodiment of the cylinder and key according to the present invention. FIG. 6 is a plan view of different embodiments of the first and second electromagnetic circuits according to the present invention. FIG. 7 is a diagram of a particular functional application according to the present invention. FIG. 8 is a diagram of a particular functional application according to the present invention. FIG. 9 is a diagram of a particular functional application according to the present invention.

Claims (11)

  An apparatus and method for transmitting data and electrical energy between a key and a lock cylinder, comprising: a first electromagnetic circuit associated with the key; and a second electromagnetic circuit associated with the cylinder; The first and second electromagnetic circuits are interconnected when the key is inserted into the cylinder, and at least electrical energy is transferred from the primary winding of the first circuit to the secondary [winding] of the second circuit. Device and method for transmitting data and electrical energy between a key and a cylinder of a lock, characterized in that it has connecting means forming a third electromagnetic circuit for transmitting   The data and electrical energy between the key and the lock cylinder according to claim 1, wherein the electrical energy is transmitted from the primary winding to the secondary winding in the form of magnetic flux. Apparatus and method.   Apparatus and method for transmitting data and electrical energy between a key and a lock cylinder according to one or more of the preceding claims, wherein the magnetic flux is suitably transmitted to a ferromagnetic circuit.   The apparatus and method for transmitting data and electrical energy between a key and a lock cylinder according to one or more of the preceding claims, wherein the ferromagnetic circuit is fabricated using ferrite.   The said 1st and 2nd electromagnetic circuit consists of the 1st and 2nd bar | burr mutually connected, The said 1st and 2nd bar | burr are both wound by the coil, The said Claim characterized by the above-mentioned. An apparatus and method for transmitting data and electrical energy between a key and a lock cylinder as defined in one or more of the paragraphs.   The third electromagnetic circuit is formed by mutual coupling of the first and second magnetic circuits, and between the key and the lock cylinder according to claim 1 or 2. Apparatus and method for transmitting data and electrical energy.   2. The signal according to claim 1, wherein a signal applied to the coil of the first magnetic circuit transmits both the energy and the data to the winding of the second magnetic circuit. Apparatus and method for transmitting data and electrical energy between a key and a lock cylinder as described above.   The first electromagnetic circuit receives a time variable voltage having the same or different frequency band as the second electromagnetic circuit and an amplitude proportional to a ratio between the number of turns of the primary winding and the secondary winding. Transmitting data and electrical energy between a key and a lock cylinder according to one or more of the preceding claims, wherein the data is transmitted from the key to the cylinder and vice versa Apparatus and method.   Device and method for transmitting data and electrical energy between a key and a lock cylinder according to one or more of the preceding claims, wherein the data is transmitted in digital and / or analog form.   The number of turns is manufactured using appropriately insulated conductor wiring, and transmits data and electrical energy between the key and the lock cylinder according to one or more of the preceding claims. Apparatus and method.   In an apparatus and method for transmitting data and electrical energy between a key and a cylinder of a lock, inserting the key comprising a first electromagnetic circuit into the cylinder comprising a second electromagnetic circuit; Activating a third electromagnetic circuit formed by combining the first and second electromagnetic circuits, and having the first electromagnetic circuit have the same or different frequency band as the second electromagnetic circuit and the first electromagnetic circuit. Transmitting the key code to the cylinder by applying a time variable voltage having an amplitude proportional to the ratio between the turns of the second electromagnetic circuit winding, and recognizing the key code. And transmitting the electrical energy in the form of a magnetic flux for activation of the shutter of the lock, and data and electrical energy between the key and the cylinder of the lock, Apparatus and method for transmitting.

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