Fire suppression systems and methods
First Claim
1. A vehicle fire suppression system comprising:
- a centralized controller;
at least one input bus coupled to the centralized controller, the input bus providing for connecting analog and digital devices to the centralized controller;
at least one output bus coupled to an extinguishment supply and an actuating device for releasing extinguishment from the extinguishment supply, the actuating device being coupled to the centralized controller; and
a manual actuating device coupled to the input bus for communication with the centralized controller to electrically signal the actuating device on the output bus to provide for manual actuation via an electrical signal,wherein the centralized controller is a programmable controller including internal circuitry to detect the status of at least one of the input bus and output bus, further comprising a fire detection circuit coupled to the at least one input bus, the internal circuitry detecting the status of the at least one input bus so as to discern between;
a fault condition, a sensed detection, and a manual release along the fire detection circuit depending upon a single variable resistance in the internal circuitry of the programmable controller; and
wherein the fault condition corresponds to a first range of resistance values of the variable resistance, wherein the sensed detection corresponds to a second range of resistance values of the variable resistance, and wherein the manual release corresponds to a third range of resistance values of the variable resistance.
1 Assignment
0 Petitions
Accused Products
Abstract
Fire suppression systems (10) for vehicles and industrial applications including arrangements of an input bus (24) and output bus (26) coupled to a centralized controller (20) to provide for automatic and manual detection of a fire (H) and manual and automatic system actuation in response to the fire. The arrangements further provide for system information regarding the status and operation of the system components. Additionally, the arrangement of system components provide for expandability and programmability to configure the system for the protection of multiple and variable hazards (H) using customized or programmed detection and/or actuation. The systems include configured connectors (25) and colour coded schemes to facilitate system installation.
31 Citations
33 Claims
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1. A vehicle fire suppression system comprising:
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a centralized controller; at least one input bus coupled to the centralized controller, the input bus providing for connecting analog and digital devices to the centralized controller; at least one output bus coupled to an extinguishment supply and an actuating device for releasing extinguishment from the extinguishment supply, the actuating device being coupled to the centralized controller; and a manual actuating device coupled to the input bus for communication with the centralized controller to electrically signal the actuating device on the output bus to provide for manual actuation via an electrical signal, wherein the centralized controller is a programmable controller including internal circuitry to detect the status of at least one of the input bus and output bus, further comprising a fire detection circuit coupled to the at least one input bus, the internal circuitry detecting the status of the at least one input bus so as to discern between;
a fault condition, a sensed detection, and a manual release along the fire detection circuit depending upon a single variable resistance in the internal circuitry of the programmable controller; andwherein the fault condition corresponds to a first range of resistance values of the variable resistance, wherein the sensed detection corresponds to a second range of resistance values of the variable resistance, and wherein the manual release corresponds to a third range of resistance values of the variable resistance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A vehicle fire suppression system comprising:
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an input bus having a plurality of detection fire detection devices to define a fire detection circuit; a power supply; a centralized controller coupled to the input bus and the power supply; and a monitoring circuit coupled to the centralized controller to discern between;
a fault condition, a sensed detection, and a manual release along the fire detection circuit depending upon a single variable resistance in the monitoring circuit; andwherein the fault condition corresponds to a first range of resistance values of the variable resistance, wherein the sensed detection corresponds to a second range of resistance values of the variable resistance, and wherein the manual release corresponds to a third range of resistance values of the variable resistance. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. A vehicle fire suppression system comprising:
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an output bus having a plurality of actuating devices and at least one manual actuating device to define a releasing circuit; a power supply; and a centralized controller coupled to the output bus and the power supply; and a fault detection circuit to detect a fault in the releasing circuit, the fault detection circuit including a first resistor, a first diode, a mini DIN connector, a second diode and a third diode in series with the second diode and coupled to ground, the mini DIN connector being coupled to the at least one output bus and at least one actuating device, the centralized controller evaluating a detection voltage at the mini DIN connector to determine if there is a ground fault in the releasing circuit, the system including a power source providing a sensing current to define the detection voltage, the power supply being grounded to the chassis of the vehicle, wherein the centralized controller is a programmable controller including internal circuitry to detect the status of at least one of the input bus and output bus, further comprising a fire detection circuit coupled to the at least one input bus, the internal circuitry detecting the status of the at least one input bus so as to discern between;
a fault condition, a sensed detection, and a manual release along the fire detection circuit depending upon a single variable resistance in the internal circuitry of the programmable controller; andwherein the fault condition corresponds to a first range of resistance values of the variable resistance, wherein the sensed detection corresponds to a second range of resistance values of the variable resistance, and wherein the manual release corresponds to a third range of resistance values of the variable resistance. - View Dependent Claims (29, 30, 31, 32, 33)
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Specification