Classifications

• • G—PHYSICS
  • G08—SIGNALLING
  • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
  • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
  • G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
  • G07C9/00—Individual registration on entry or exit
  • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
  • G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
  • G07C9/00—Individual registration on entry or exit
  • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
  • G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
  • G07C2009/0023—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks with encription of the transmittted data signal
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
  • G07C9/00—Individual registration on entry or exit
  • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
  • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
  • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
  • G07C2009/00785—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by light

Definitions

• the invention is based on a control device based on light waves with a transmitter for generating a light frequency wave by means of an oscillator and with a receiver of the frequency wave, which interacts with a converter as processor of the signals of the receiver output.
• Control devices based on light waves, which work with a frequency wave are well known. For example, it is known to switch a television set on and off via an infrared frequency wave and to switch over the individual television stations via different frequencies programmed by individual buttons on the transmitter. Since such controls have a relatively high energy consumption, they are mainly replaced by other carrier means such as lasers, ultrasound, etc. These are always devices that are manufactured in large series, each working at the same frequency.
• the invention is based on the object.
• the light frequency wave serves as a base carrier for control signals which are coded in the transmitter according to a fixed key and decoded by the receiver, and in that the transducer works as an encoder of a locking system with preferably electrical actuating elements.
• signal frequencies can be modulated onto the frequency wave by at least one second oscillator. Transmission time limits can also be formed as control signals by a time calibrator.
• the "key" is formed by an encoder in the transmitter, which is decrypted by a corresponding decoder in the receiver, any conceivable combination of time signal and frequency signal being able to be encrypted and decrypted again.
• the infrared control preferred according to the invention for the light waves has the great advantage that it is almost completely insensitive to weather influences, that is to say that environmental influences hardly have a disturbing effect, which is particularly great It is important if there are environmental influences in such a system. This applies not only to the range of different temperatures, but also to air humidity or electrical charges in the air. In addition, such an infrared control is also insensitive to any environmental influences such as sound. It is known, for example, that garage doors with ultrasound-controlled garage doors open undesirably automatically due to mostly undetectable ultrasonic waves of the environment. This also applies to controls on the electrical transmission range, such as, for example, short wave Here, too, it is usually difficult to determine short waves that activate a control.
• the most important advantage lies in light waves as a carrier element, in which, as described in the introduction in a wide variety of ways - time and frequency code - an extremely variable and complicated code can be entered without this being ascertainable by third parties.
• the encryption variations go entirely in the faculty area, so that even the most skilful burglar can only unlock such a lock if the code is accidentally determined.
• the sequence of differently calibrated signals of different frequencies can also be determined arbitrarily, with different frequencies being modulatable at the same time.
• the great advantage of such a system is that all possible additional units can be switched on. It is thus possible to record all processes that take place with the lock using an automatic recorder, which can be important, for example, in locks for bank vaults.
• Such a lock system can be attached to a certain time rhythm, so that, for example, an assigned time from a certain time.
• the lock can only be opened with a very special code.
• the transmitter is cast in casting resin, so that exposure of the transmitter parts also results in destruction of the code.
• the locking system can also be combined with an alarm system, so that the transmission of a non-programmed signal by, for example, a burglar leads to the alarm system being switched on.
• two transmitters and two receivers can be used to actuate the locking system - for example in bank safes - the output values of the decoders having to be compared in a decoder comparator before the lock system converter can work
• the output values of the decoders having to be compared in a decoder comparator before the lock system converter can work
• a lock and environmental security system can be found that is unique in its unit.
• pictures and sound barriers as well as the rhythms of the day and the recorder can be easily installed here.
• the control device is used in the locking system of a motor vehicle.
• the locking system can work as a central locking system.
• the transmitter can simultaneously serve as the unlocking key of the ignition lock, ie as an ignition key, by positioning it in a corresponding position in the dashboard.
• Such a sensor can provide additional security - -
• the door lock i.e. that the "ignition key” only works when the door lock is unlocked. This can be important if, for example, the burglar enters the vehicle via a convertible or a destroyed window.
• such a control device can serve as a home locking system.
• codes of different programs can be used for the different locks, but also programs of different increments, for example.
• the front door can be opened, with an activated program only the apartment door and possibly some special locks in the apartment via another program.
• a graduation in banks or the like can also be set up with extraordinary certainty, for example that with a first code the entrance to the bank, with a second any desks and then with a third a safe is evident.
• Fig. 3 shows the infrared transmission via glass fiber
• Fig. 4 the application in a house locking system.
• an infrared carrier frequency is generated in a transmitter via an infrared oscillator 1, to which a key frequency is modulated, in particular in the low frequency range, via an oscillator 2.
• This output variable is further modulated in an amplifier and time calibrator 3, so that an extremely diverse program can be transmitted via a transmitting diode 4. It is possible that, depending on the design of the encoders 2 and 3, several different time programs can be sent with a variety of frequency programs. In this case, several different frequencies can be entered simultaneously, so that the faculty area comes to the question of the different possibilities of the program.
• a receiver is assigned to this transmitter, which receives the transmission signal of the transmission diode 4 via an infrared sensor 5.
• This signal is then input to a filter 6 which only passes a very specific frequency, for example in the low frequency range. The reaction therefore only takes place for a certain frequency in the infrared range. The carrier frequency and the NS frequency must therefore match exactly.
• the filtered signal is then amplified several times in an amplifier 7.
• the signal then passes from the amplifier into a frequency decoder 8, which in turn only reacts to the programmed frequencies.
• a time decoder is connected upstream or downstream of this frequency deco, through which the entered time program is registered. So it is quite possible that within a calibrated transmission time between 1 and 20 certain frequencies that are precisely coordinated, are programmed one above the other.
• the key signal if allowed, then passes from the time decoder 9 to the switching unit 10, which controls an electrical converter, for example a magnetically operated bolt of a lock.
• the receiver "only" works if the program of the transmitter matches the program of the receiver. Since it is an electrical system, a false signal can also be recorded as such at each switching point and can be sent to an alarm system or another electrical system.
• the circuit diagram shown in FIG. 2 is about the security system, which can only be unlocked using two electronic keys.
• two transmitters 11 are provided, to which two receivers 12 are assigned.
• Each transmitter has a different program, although a corresponding receiver 1 is assigned to each transmitter 11.
• the output variables of the receivers 12 are checked in a decoder comparator 13. In the event of a positive statement, the switching signal is then passed on to a switching unit 14; which then controls the converter.
• Fig. 3 it is shown how such a system can also work via auc gaps between, for example, door and frame.
• the signals arrive from an unillustrated transmitter via optical fibers 15 to the door gap 16, and are respectively on the ends of the Glas ⁇ * fiber 15 opposite ends of optical fibers 17 wei ⁇ forwarded to the IR sensors 18.
• a decoder 19 it is mög ⁇ Lich that a integer of glass fibers used 'advertising the, so that a whole number of sensors 18 are connected to a decoder 19.
• only a small part of the large number of glass fibers, such as three glass fibers 20, for example can be used for the consignment, in that signals that pass only through these three glass fibers 20 are further processed in a downstream receiver 21.
• signals that run over the other glass fibers are routed in the decoder 19 to trigger an alarm system 22.
• a transmitter 23 has three different codes. This transmitter is assigned 3 different locks, for example the receiver 24 as a garden and front door lock, the receiver 25 as a garage door lock and the receiver 26 as an apartment door lock.
• the transmitter can, for example, transmit a modulated low frequency which changes its frequency twelve times per broadcast.
• the receiver 24 understands "the frequency changes from zero to three, the receiver 25 the frequency changes from zero to six and the receiver 26 the frequency changes from zero to 12. It should be noted here that the receiver 26 is six times safer than the receiver 24 , although the same key was used in each case.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Lock And Its Accessories (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6160759

Family Applications (1)

Country Status (5)

Families Citing this family (4)

Family Cites Families (4)

• 1982
  • 1982-04-10 DE DE19823213479 patent/DE3213479A1/de not_active Withdrawn
• 1983
  • 1983-04-09 JP JP50124883A patent/JPS59500774A/ja active Pending
  • 1983-04-09 AU AU13790/83A patent/AU1379083A/en not_active Abandoned
  • 1983-04-09 WO PCT/DE1983/000066 patent/WO1983003697A1/en unknown
  • 1983-04-09 EP EP19830901187 patent/EP0106859A1/de not_active Withdrawn

Non-Patent Citations (1)

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