IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0363757
(2001-04-03)
|
우선권정보 |
IT-0000840 (2000-09-05) |
국제출원번호 |
PCT//IB01/00548
(2003-08-04)
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§371/§102 date |
20030804
(20030804)
|
국제공개번호 |
WO02//21664
(2002-03-14)
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발명자
/ 주소 |
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출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
16 인용 특허 :
4 |
초록
▼
Method and system for transmitting/receiving or communicating data and information on electric power line between two electronic controlled devices, namely, and electric user (HA), in particular a household appliance, having a first electronic control system and at least a first electric load, and a
Method and system for transmitting/receiving or communicating data and information on electric power line between two electronic controlled devices, namely, and electric user (HA), in particular a household appliance, having a first electronic control system and at least a first electric load, and a monitoring or control device (SA), having a second electronic control system, the device (SA) being located on the line between an electric power outlet and the first electric load. The transmission/reception or communication of data and information on the line is obtained by means of electric power modulation between the user (HA) and the device (SA), and/or vice-versa.
대표청구항
▼
1. Method for point-to-point communicating, for transmission/reception of data or information over an AC electric power line, between two apparatuses having respective electronic control systems (HA,SA; HA1-HA5,MSA), including:an electric user (HA; HA1-HA5), in particular a household user, having a
1. Method for point-to-point communicating, for transmission/reception of data or information over an AC electric power line, between two apparatuses having respective electronic control systems (HA,SA; HA1-HA5,MSA), including:an electric user (HA; HA1-HA5), in particular a household user, having a first electronic control system (M2) and at least a first electric load (L1; L2,LN); a monitoring or control device (SA; MSA), having a second electronic control system (M1; MC), said device (SA; MSA) being located on said line between an electric power source (Outlet) and said, user (HA; HA1-HA5); the transmission/reception of data or information over said line being performed by means of a modulation of electric power between said user (HA; HA1-HA5) and said device (SA; MSA) and/or vice-versa, characterized in thatthe transmission of data or information over said line from said user (HA; HA1-HA5) to said device (SA; MSA) is performed through a modulation of electric power or current absorbed by said first load (L1; L2,LN) under the control of said first control system (M2), data or information transmitted by said user (HA; HA1-HA5) being encoded through controlled absorptions of electric power or current of said first load (L1; L2,LN), and the reception of data or information (SA; MSA) is performed by said second control system (M1; MC) of said device (SA; MSA) by decoding said controlled absorptions. 2. Method, according to claim 1, characterized by associating respective bits of said data or information with half waves of a mains voltage, where given bits are determined by comparing said controlled absorptions with a predetermined threshold.3. Method, according to claim 2, characterized in that binary data to be transmitted from said user (HA; HA1-HA5) to said device (SA; MSA) are encodedwith a positive logic, where a logic “one” corresponds to said controlled absorption being greater than said predetermined threshold and a logic “zero” corresponds to said controlled absorption being smaller than said predetermined threshold, or with a negative logic, where a logic “zero” corresponds to said controlled absorption being greater than said predetermined threshold and a logic “one” corresponds to said controlled absorption being smaller than said predetermined threshold. 4. Method, according to claim 3, characterized in that the durations of said controlled absorptions are fractions of the mains half period.5. Method, according to claim 1, characterized in that a sequence of bits forming binary data to be transmitted from said user (HA; HA1-HA5) to said device (SA; MSA) is preceded by a transmission start signal (Start).6. Method, according to claim 1, characterized by associating several data bits with respective predetermined values of said controlled absorptions.7. Method, according to claim 6, characterized in that the predetermined values are variable quantities that are associated with half waves of the mains voltage, and the variable quantities are expressed as multiples of a basic absorption (P0).8. Method, according to claim 7, characterized in that the controlled absorptions correspond to 4-bit binary configurations, or “nibbles”.9. Method, according to claim 1, characterized in that bi-directional exchange of data or information is provided between said device (SA; MSA) and said user (HA; HA1-HA5) over said line and in thatthe transmission of data or information over said line from said device (SA; MSA) to said user (HA; HA1-HA5) is performed through a modulation of electric power or current supplied to said user (HA; HA1-HA5) under the control of said second control system (M1; MC), data or information transmitted by said device (SA; MSA) being encoded through controlled interruptions of the supply of the electric mains from said device (SA; MSA) to said user (HA; HA1-HA5), and the reception of data or information is performed by said first control system (M2) of said user (HA; HA1-HA5) by decoding said controlled interruptions. 10. Method, according to claim 9, characterized by associating respective bits with half waves of the mains voltage, with predetermined durations being set for controlled interruptions relating to the respective half waves.11. Method, according to claim 9, characterized in that binary data to be transmitted from said device (SA; MSA) to said user (HA; HA1-HA5) are encodedwith a positive logic, where a logic “one” corresponds to the presence of one of said controlled interruptions and a logic “zero” corresponds to its absence, or with a negative logic, where a logic “zero” corresponds to the presence of one of said controlled interruptions and a logic “one” corresponds to its absence. 12. Method, according to claim 11, characterized in that the duration of said controlled interruptions is equal to a fraction of the mains half cycle.13. Method, according to claim 9, characterized in that a sequence of bits forming binary data to be transmitted from said device (SA; MSA) to said user (HA; HA1-HA5) is preceded by a transmission start signal (Start), represented by one of said controlled interruptions having a duration different from the one being associated to a bit of real data.14. Method, according to claim 9, characterized by associating several bits with respective predetermined durations of said controlled interruptions that are related to half waves of the mains voltage.15. Method, according to claim 14, characterized in that said pre-determined durations are expressed as multiples of a basic duration (D0).16. System for point-to-point communication, for transmission/reception of data or information over an AC electric power line between two apparatuses having a respective electronic control system (HA,SA; HA1-HA5,MSA), including:an electric user (HA; HA1-HA5), in particular a household user, having a first electronic control system (M2) and at least a first electric load (L1; L2,LN); a monitoring or control device (SA; MSA), having a second electronic control system (M1; MC), said device (SA; MSA) being located on said line between an electric power source and said user (HA; HA1-HA5); means being provided for performing the transmission/reception of data or information on said line through a modulation of electric power between said user (HA; HA1-HA5) and said device (SA; MSA), and/or vice-versa, characterized in that said means comprisea transmission stage or transmitter (L1,T1,01; L2,T2,O2,LN,TN, LN) of said user (HA; HA1-HA5), controlled by said first control system (M2) for performing a modulation of electric power or current absorbed by said first load (L1; L2,LN), said transmitter of said user comprising means (L1,T1,01; L2,T2,O2,LN,TN,LN) for encoding data or information through controlled absorptions of electric power or current by said first load (L1; L2,LN), and a reception stage or receiver (PM,S,ZD) of said device (SA; MSA), controlled by said second control system (M1; MC) for detecting said modulation of electric power or current absorbed by said first load (L1; L2,LN), said receiver of said device comprising means (PM,S,ZD) for decoding data or information represented by said controlled absorptions. 17. System, according to claim 16, characterized in that said means for encoding comprise a solid state switch or relay, such as a triac (T1; T2,TN), associated to said first load (L1; L2,LN).18. System, according to claim 17, characterized in that the enabling signal (O1; O2,ON) of said solid state switch or relay (T1; T2,TN) is managed by a microcontroller (M2) and synchronized with a signal (ZD) detecting the mains voltage zero-crossing.19. System, according to claim 16, characterized in that said means for decoding (PM,S,ZD) comprise an electric power meter (PM).20. System, according to claim 16, characterized in that said means for decoding (PM,S,ZD) comprise a current detector (S).21. System, according to claim 16, characterized in that said second control system (M1; MC) comprise means for detecting the presence of power or current absorptions by said first load (L1; L2,LN) and determining their values through a continuous measure of the supplied power or current in respective half waves of the mains voltage.22. System, according to claim 16, characterized in that said means further comprisea transmission stage or transmitter (T,RC,G,ZD) of said device (SA; MSA), controlled by said second control system (M1; MC) for performing a modulation of electric power or current supplied by said device (SA; MSA) to said user (HA; HA1-HA5), said transmitter of said device (SA; MSA) comprising means (T,RC,G,ZD) for encoding data or information through controlled interruptions of the supply of the electric mains from said device (SA; MSA) to said user (HA; HA1-HA5), and a reception stage or receiver (D1,D2,R1-R3,TR1,SD; RB,R1-R3,TR1,SD; RB,R1,R2,SD; DZ1,C1,R1′-R3′,D1′D2′) of said user (HA; HA1-HA5), controlled by said first control system (M2) for decoding said modulation of electric power or current supplied by said device (SA; MSA), said receiver of said user comprising means (D1,D2,R1-R3,TR1,SD; RB,R1-R3,TR1,SD; RB,R1,R2,SD; DZ1,C1,R1′-R3′,D1′D2′) for decoding the data or information represented by said controlled interruptions. 23. System, according to claim 22, characterized in that said means for encoding (T,RC,G,ZD) of the transmitter (T,RC,G,ZD) of said device (SA; MSA) comprise a solid state switch or relay, in particular a triac (T), whose enabling signal (G) is synchronized with a signal (ZD) detecting the mains voltage zero-crossing.24. System, according to claim 23, characterized in that said solid state switch or relay (T) is in parallel to the normally closed contact (RC) of an electromechanical relay.25. System, according to claim 22, characterized in that said means for decoding (D1,D2,R1-R3,TR1,SD; RB,R1-R3,TR1,SD; RB,R1,R2,SD; DZ1,C1,R1′-R3′,D1′D2′) of the receiver (PM,S,ZD) of said device (SA; MSA) comprise two diodes (D1,D2), whose anodes are located in particular at the terminals of the secondary of a transformer (TF) of said first control system (M2).26. System, according to claim 25, characterized in that the half waves exiting the secondary of said transformer (TF), rectified by said diodes (D1,D2), are applied to the base of a transistor (TR1) through a resistive divider (R1,R2), for generating a pulse applied to a digital signal input (SD) of a microcontroller (M2).27. System, according to claim 22, characterized in that said means for decoding (D1,D2,R1-R3,TR1,SD; RB,R1-R3,TR1,SD; RB,R1,R2,SD; DZ1,C1,R1′-R3′,D1′D2′) of the receiver (PM,S,ZD) of said device (SA; MSA) comprise a diodes bridge (RB) for rectifying the half waves exiting a transformer (TF) of said first control system (M2), and apply them to the base of a transistor (TR1) through a resistive divider (R1,R2), for generating a pulse being directed to a digital signal input (SD) of a micro-controller (M2).28. System, according to claim 22, characterized in that said means for decoding (D1,D2,R1-R3,TR1,SD; RB,R1-R3,TR1,SD; RB,R1,R2,SD; DZ1,C1,R1′-R3′,D1′D2′) of the receiver (PM,S,ZD) of said device (SA; MSA) comprise a diodes bridge (RB) for rectifying the output voltage of the secondary of a transformer (TF) of said first control system (M2) and generate through a resistive divider (R1,R2) a signal applied to an analog signal input (SD) of a microcontroller (M2).29. Method, according to claim 15, characterized in that a 4-bit binary configuration, or “nibble” is associated to each half wave of the mains voltage.30. System, according to claim 24, characterized in that said electromechanical relay (RC), said solid state switch or relay (T) and said synchronism signal (ZD) are managed by a microcontroller (M1; MC) being part of said second control system (M1; MC).31. A monitoring or control device comprising:measuring means (PM, S) for measuring at least one of electric current and power absorbed instant by instant by an electric user (HA; HA1-HA5), to determine modulation of electric power by said user, modulation means (T, RC, G, ZD) for implementing a modulation of the electric power supplied to said user (HA; HA1-HA5), to communicate data to said user, decoding means (PM, S, ZD) connected to receive measurements from said measuring means, for decoding the modulation to determine data received from said user (HA; HA1-HA5); and connecting means (N) for connecting to a network, for communication with the outside using a protocol and communication media, said connecting means providing data communicated from the outside to said modulation means for communication to said user. 32. A monitoring or control device, according to claim 31, characterized in that power line is used as media for said communication with the outside.33. A monitoring or control device, according to claim 31, characterized in that radio-frequency is used as media for said communication with the outside.34. A monitoring or control device, according to claim 31, characterized in that two-wires cable is used as media for said communication with the outside.35. A monitoring or control device, according to claim 31, characterized in that data or information received from said user (HA; HA1-HA5) are transmitted onto the network through said connecting means (N).36. A monitoring or control device, according to claim 31, characterized in that the device further includes a means (N,RC) for remote controlling of said user (HA; HA1-HA5).37. A monitoring or control device, according to claim 36, characterized in that data or information for said remote controlling of said user (HA; HA1-HA5) are provided by the network through said connecting means (N).
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