Communication system between a plurality of transmitters and receivers having relays responsive to those identifying codes of transmitters contained in its respective table memory
First Claim
1. A control system comprising, a plurality of transmitters and a plurality of receivers wherein any one of the transmitters can send a control message to any number of receivers simultaneously and any receiver can receive messages from more than one transmitter, said system further comprising at least two transmitting points (1), each of said transmitting points being assigned a particular identifying code,at least two receiving points (4), said transmitting points and said receiving points being distinct from one another,and relay points (2) equal in number to the number of receiving points, where each relay point is associated with a single receiving point for controlling the associated receiving point, andwherein the output of each of said relay points is connected to the input of its associated receiving point,a common bus line wherein the outputs of said transmitting points and the inputs of the said relay points are each connected to said common BUS line so as to provide one-way communication from the transmitters to the receivers,said common BUS line being the sole path of communication between the transmitters and receivers,the transmitting points being for transmitting signals onto the BUS line,each signal comprising a frame formed of at least one element corresponding to the particular transmitter'"'"'s identifying code, and of at least one element defining an order to be executed by the receiver,each of said relay points comprising a microprocessor for deciphering and processing the signals transmitted on the BUS line and for activating the receiver which is associated with said relay point,said microprocessor comprising a processing unit, and memories including a programmed non-volatile memory which stores the transmitter identifying codes of each transmitter whose messages the particular receiver can execute,wherein the microprocessor selects among said signals transmitted on the BUS line by the transmitting pint, only those signal in which the transmitter identifying element corresponds to a stored transmitter identifying code, and the programming of the receiver'"'"'s microprocessor is the sole determinant of the destination and reception of each transmitted signal,wherein the microprocessor causes transmission of the order code of each selected frame to its corresponding receiver,and wherein the microprocessor (5) of the relay point comprises a table of identifying codes which consists of memory slots intended to store the identifying codes of the transmitters to which the relay point is to be responsive, frame memory slots intended to temporarily store the information contained in the frame of the last signal traveling on the BUS line and an indicator consisting of a memory slot and intended to receive a state (0 or 1) each time that the address of the stored frame corresponds to one of those stored in the address table.
1 Assignment
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Accused Products
Abstract
Installation comprising several receiving points and several transmitting points. A control installation especially useful for controlling the operation of roller blinds or shutters. The control installation has several receiving points (4), several transmitting points (1) and the relay points (2) are connected to a common BUS line so as to be able to intercommunicate. The transmitting points (1) are provided in order to transmit signals on the BUS line. Each signal is a frame formed of at least one identifying element and of at least one element defining an order to be executed by the receiver. A particular address code, to which the identifying element corresponds is assigned to each transmitting point. The relay points are equipped with a logic processing unit having memories which are provided in order to store at least one identifying element. The allocating of the address to the transmitter allows the control installation to exhibit very high flexibility.
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Citations
12 Claims
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1. A control system comprising, a plurality of transmitters and a plurality of receivers wherein any one of the transmitters can send a control message to any number of receivers simultaneously and any receiver can receive messages from more than one transmitter, said system further comprising at least two transmitting points (1), each of said transmitting points being assigned a particular identifying code,
at least two receiving points (4), said transmitting points and said receiving points being distinct from one another, and relay points (2) equal in number to the number of receiving points, where each relay point is associated with a single receiving point for controlling the associated receiving point, and wherein the output of each of said relay points is connected to the input of its associated receiving point, a common bus line wherein the outputs of said transmitting points and the inputs of the said relay points are each connected to said common BUS line so as to provide one-way communication from the transmitters to the receivers, said common BUS line being the sole path of communication between the transmitters and receivers, the transmitting points being for transmitting signals onto the BUS line, each signal comprising a frame formed of at least one element corresponding to the particular transmitter'"'"'s identifying code, and of at least one element defining an order to be executed by the receiver, each of said relay points comprising a microprocessor for deciphering and processing the signals transmitted on the BUS line and for activating the receiver which is associated with said relay point, said microprocessor comprising a processing unit, and memories including a programmed non-volatile memory which stores the transmitter identifying codes of each transmitter whose messages the particular receiver can execute, wherein the microprocessor selects among said signals transmitted on the BUS line by the transmitting pint, only those signal in which the transmitter identifying element corresponds to a stored transmitter identifying code, and the programming of the receiver'"'"'s microprocessor is the sole determinant of the destination and reception of each transmitted signal, wherein the microprocessor causes transmission of the order code of each selected frame to its corresponding receiver, and wherein the microprocessor (5) of the relay point comprises a table of identifying codes which consists of memory slots intended to store the identifying codes of the transmitters to which the relay point is to be responsive, frame memory slots intended to temporarily store the information contained in the frame of the last signal traveling on the BUS line and an indicator consisting of a memory slot and intended to receive a state (0 or 1) each time that the address of the stored frame corresponds to one of those stored in the address table.
Specification