摘要:
A method for controlling the operation of a lighting unit comprising a plurality of lighting elements and a dimmable power supply unit with an output for adjusting the brightness of at least some of the lighting elements. The method provides that for at least one dimmer setting at least one real electrical parameter is measured, as a function of the absorption of the lighting elements and that the measured electrical parameter is compared with at least one previously-stored theoretical value.
摘要:
The electricity distribution network comprises a plurality of interconnection lines for the distribution of electricity among a plurality of interconnection boxes. At least some of said interconnection boxes are combined with a control unit for detection of stray voltage, comprising a transmitter to transmit to a receiver of at least one collecting unit a signal relating to any dispersion.
摘要:
A method for controlling the operation of a lighting unit comprising a plurality of lighting elements and a dimmable power supply unit with an output for adjusting the brightness of at least some of the lighting elements. The method provides that for at least one dimmer setting at least one real electrical parameter is measured, as a function of the absorption of the lighting elements and that the measured electrical parameter is compared with at least one previously-stored theoretical value.
摘要:
The electricity distribution network comprises a plurality of interconnection lines for the distribution of electricity among a plurality of interconnection boxes. At least some of said interconnection boxes are combined with a control unit for detection of stray voltage, comprising a transmitter to transmit to a receiver of at least one collecting unit a signal relating to any dispersion.
摘要:
An electronic device comprising at least a motherboard (102) with a digital control unit (101), a plurality of resources (105, 106, 107, 108, 109), and at least one memory support (104) containing a firmware and able to hold an executable program. The firmware is able to carry out a virtualization of the resources of the electronic device, assigning virtual addresses to these resources. The executable program exchanges information or instructions with the electronic device by using these virtual addresses.
摘要:
Disclosed is a method for transmitting messages between a transmitter and a receiver on a channel on which noise may be present. The messages are constituted by a sequence of data and comprise an initial portion (header) containing data to allow recognition of the message, a central portion (body) containing the valid message to transmit and an end portion (tail) containing information to verify the completeness of the message. The method consists in inserting in the message header a signature obtained from the combination of a first fixed part and of a second validation part; and recognizing a valid message received by verifying whether the fixed part of the message received generates the same validation part.
摘要:
To identify a phase in a multi-phase electrical system, the following method is proposed: transmission, on a defined phase (L1, L2, L3) of a line of the system, of a message with a known synchronization with respect to the phase voltage (V1, V2, V3); reception of the message on an undefined phase (X, Y, Z) of the line; identification of the phase on which the message has been received according to the displacement between the voltage on said undefined phase and the message received.
摘要:
A method is described for the transmission of data among devices (D1, D2, . . . Di, . . . Dn) connected to a communication channel (1) through sequences containing at least two symbols, one dominant (“0”) and one recessive (“1”). According to this transmission method, one (DTSG) of the devices connected to the communication channel (1) has the function of time slot generator and it transmits on the communication channel (1) with a transmission frequency (f) a sequence of symbols, each defining a time slot in a sequence of time slots. The sequence of symbols comprises at least a series of recessive symbols (“1”). When one of the devices (Di) has to transmit on the communication channel (1), it generates a sequence of symbols, synchronized with the sequence of time slots generated by the time slot generator device (DTSG) and comprising at least one dominant symbol (“0”).
摘要:
A method for transmitting a file from a file source (101) to a plurality of electronic devices (110j) is described herein. To each electronic device are associated an encryption key and a unique identifier code. According to the method described herein, to the plurality of electronic devices are transmitted: a file encrypted by means of a session key, and a plurality of encrypted session keys, each paired with a respective electronic device, with whose encryption key the respective encrypted session key was obtained; Moreover, each electronic device decrypts its own encrypted session key using the respective encryption key to obtain the decrypted session key, and decrypts the encrypted file by means of the decrypted session key.
摘要:
Disclosed is a method for transmitting messages between a transmitter and a receiver on a channel on which noise may be present. The messages are constituted by a sequence of data and comprise an initial portion (header) containing data to allow recognition of the message, a central portion (body) containing the valid message to transmit and an end portion (tail) containing information to verify the completeness of the message. The method consists in inserting in the message header a signature obtained from the combination of a first fixed part and of a second validation part; and recognizing a valid message received by verifying whether the fixed part of the message received generates the same validation part.