Method and device for the optimized transmission of remote control signals particularly of gates, doors and barriers

• US 9,166,656 B2
• Filed: 04/20/2011
• Issued: 10/20/2015
• Est. Priority Date: 05/03/2010
• Status: Active Grant

• Current Assignee: FAAC S.p.A.
• Original Assignee: FAAC S.p.A.
• Inventors: Pirazzini, Massimo
• Primary Examiner(s): Wendell, Andrew
• Application Number:
  US13/695,826
• Publication Number:
  US 20130090070A1
• Time in Patent Office: 1,644 Days
• Field of Search: 455/522, 455/62, 455/63.1, 455/67.11, 455/69, 455/71, 340/4.11, 340/5.71, 340/12.22, 340/539.1, 340/539.11, 340/539.17, 340/815.6
• US Class Current: 1/1
• CPC Class Codes: G08C 17/02 using a radio link
• CPC Class Codes: H04B 7/005 Control of transmission; Equalising

Abstract

The present invention refers to a method and to a device for the optimized transmission of remote control signals particularly but not exclusively used to open or close gates, doors and automatic barriers, in which the method (100) for the optimized transmission of remote control signals comprises a phase consisting of transmitting (110) a remote control signal at a carrier frequency through a via-ether transmission interface (11) and it is characterised in that it comprises in addition the phases consisting of receiving (120) through a via-ether receiving means (12) the transmitted remote control signal and measuring its radiated power, and varying (130) the transmitted remote control signal so as to maximize said measured radiated power.

Claims

1. Method (100) for the optimized transmission of remote control signals comprising the phases that consist of:

(a) transmitting (110) a remote control signal at a carrier frequency through a via-ether transmission interface (11) tuned to a tuning frequency;

(b) receiving (120) said remote control signal transmitted in phase (a) through a via-ether receiving means (12);

characterized in that it comprises the phases that consist of;

(c) measuring the power of said signal received in phase (b);

(d) varying (130) said tuning frequency of said via-ether transmission interface (11); and

(e) determining (140) an optimal tuning frequency corresponding to a value of maximum power of said received signal.

2. Method (100) for the optimized transmission of remote control signals according to claim 1 characterized in that said phase (d) of varying (130) of said tuning frequency of said via-ether transmission interface (11) comprises the step consisting of varying said tuning frequency (131) in a range of frequencies comprised between a maximum frequency value and a minimum frequency value, said radiated power being at its maximum at an optimal value of said tuning frequency comprised between said maximum value and said minimum value.

3. Method (100) for the optimized transmission of remote control signals according to claim 2 characterized in that it comprises in addition the phase consisting of transmitting said remote control signal through said via-ether transmission interface (11) tuned to said optimal tuning frequency.

4. Method (100) for the optimized transmission of remote control signals according to claim 2 characterized in that said phase of varying said tuning frequency (131) of said remote control signal consists of varying a control voltage of a syntonizer means (17) in a range of voltages between a maximum voltage value and a minimum voltage value so as to identify said optimal tuning frequency.

5. Method (100) for the optimized transmission of remote control signals according to claim 2 characterized in that said phase of varying said tuning frequency (131) of said remote control signal consists of varying a voltage controlled capacity connected to said transmission interface (11) in a range of values comprised between a maximum capacity value and a minimum capacity value, so as to identify said optimal tuning frequency.

6. Method (100) for the optimized transmission of remote control signals according to claim 1 characterized in that said phase (120) of measuring said power of said remote control signal consists of measuring a voltage proportional to said power (120).

7. Device (10) for the optimized transmission of remote control signals according to claim 1 characterized in that said means for measuring (18, 19) the power of said received remote control signal comprise means for measuring a voltage proportional to said power.

8. Device (10) for the optimised transmission of remote control signals comprising means for via-ether transmitting (11, 14, 16) a remote control signal characterized in that it comprises means for via-ether receiving (12) said remote control signal transmitted by said means for transmitting (11,14,16), said means for via-ether receiving (12) being connected to means for measuring (18, 19) the power of said received remote control signal, said means for measuring (18, 19) the power of said received signal being connected to means for varying (13, 15, 17) the tuning frequency of said means for via-ether transmitting (11, 14, 16), said varying means (13, 15, 17) comprising an elaboration unit (13) that determines an optimal tuning frequency corresponding to a value of maximum power of said received signal.

9. Device (10) for the optimized transmission of remote control signals according to claim 8 characterized in that said means for via-ether transmitting (11, 14, 16) comprise a via-ether transmission interface (11) connected to an amplification unit (14), in turn fed by a means for generating periodical waveforms (16).

10. Device (10) for the optimized transmission of remote control signals according to claim 9 characterized in that said means for varying (13, 15, 17) said tuning frequency of said means for via-ether transmitting (11, 14, 16) comprise a syntonizer means (17) connected to said via-ether transmission interface (11) and driven by said elaboration unit (13) based on said measured power.

11. Device (10) for the optimized transmission of remote control signals according to claim 10 characterized in that said syntonizer means (17) is voltage controlled, said means for varying (13, 15, 17) said tuning frequency comprising a means for generating continuous voltage (15) driven by said elaboration unit (13).

12. Device (10) for the optimized transmission of remote control signals according to claim 10 characterized in that said via-ether transmission interface (11) is of the inductive type and said syntonizer means (17) comprises a variable voltage controlled capacity connected to said via-ether transmission interface (11).

13. Device (10) for the optimized transmission of remote control signals according to claim 12 characterized in that said means for generating continuous voltage (15) is made through a charge pump (22) and a direct current—

direct current converter (21) of the chopper type connected in cascade with it.

14. Device (10) for the optimized transmission of remote control signals according to claim 8 characterized in that said means for measuring (18, 19) the power comprise a peak voltage detector (18) connected to an amplifier (19).