Message packet protocol for communication of remote sensor information in a wireless security system
AssigneeInteractive Technologies, Inc.
InventorGerald M. Kackman
Life of this patent
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Abstract
In a security or monitoring system having a system roller and one or more sensor/transmitters, information is sent from the transmitter to the system controller in message packets. As improved message packet protocol provides a front porch pulse, a set of synchronization bits, a start bit, a set of information bits, a first stop bit, a set of error detection bits, and a second stop bit.
Claims13
A method for transmitting information via a message packet from a transmitter to a system controller in a security system, the method comprising the steps of:
- transmitting a front porch pulse;
- transmitting a set of synchronization bits;
- transmitting a start bit;
- transmitting information bits;
- transmitting a first stop bit;
- transmitting a set of error detection bits;
- and
- transmitting a second stop bit.
A method for sending information from a transmitter to a system controller in a security system, comprising:
- generating one or more message packets each time the transmitter receives a change in status condition from an associated sensor, wherein the message packet includes a front porch pulse, a set of synchronization bits, a start bit, a set of data bits, a set of trigger count bits for uniquely identifying each of the message packets, a low battery bit for indicating a low battery level condition associated with the transmitter, a set of input bits for indicating a condition of a sensor associated with the transmitter, a set of parity bits, a programmable bit for flexible assignment to one or more of a variety of transmission tasks, a first stop bit, a set of error detection bits, and a second stop bit;
- and
- sending each of the message packets from the transmitter to the system controller.
In a security system comprising a system controller and a plurality of remote transmitters with associated sensors, wherein each of the transmitters sends information to the system controller when an associated one of the sensors detects a change in condition, the improvement comprising a method for transmitting the information from the transmitter to the system controller via a message packet, the method comprising the steps of:
- transmitting a front porch pulse,
- transmitting a set of synchronization bits,
- transmitting a start bit,
- transmitting a set of information bits,
- transmitting a first stop bit,
- transmitting a set of error detection bits, and
- transmitting a second stop bit.
A method for transmitting information via a message packet from a transmitter to a system controller in a security system, wherein the security system includes a sensor associated with the transmitter, the method comprising the steps of:
- transmitting a front porch pulse;
- transmitting a set of synchronization bits;
- transmitting a start bit;
- transmitting a set of data bits;
- transmitting a set of trigger count bits for uniquely identifying each of a plurality of the message packets;
- transmitting a low battery bit for indicating a low battery level condition associated with the transmitter;
- transmitting a set of input bits for indicating a condition of the sensor associated with the transmitter;
- transmitting a set of parity bits;
- transmitting a first stop bit;
- transmitting a set of error detection bits;
- and
- transmitting a second stop bit.
Dependencies are inferred from the claim text.