Home security and garage door operator system
First Claim
1. In an automatic garage door operating system having actuator means for controlling the position of the garage door in response to user-initiated door opening and closing signals, the improvement comprising;
- toxic gas detector means for sensing the level of toxic gas in the garage, operative to provide an output signal when the level of toxic gas exceeds a predetermined level;
means for coupling the output of said toxic gas detector means to said actuator means to open the garage door in response to the output signal from said toxic gas detector means; and
lockout means for preventing said actuator means from closing the door as long as the toxic gas detector means senses an excessive level of toxic gas in the garage.
8 Assignments
0 Petitions
Accused Products
Abstract
A home security and garage door operator system includes a gas sensor for detecting the level of toxic gas in the garage. When the gas level exceeds a predetermined threshold the garage door is automatically opened. Lock out circuitry is provided for preventing the door from being accidentally closed as long as the gas sensor detects an excessive level of toxic gas in the garage. A two button transmitter is used to sequentially close the garage door and set a security alarm subsystem. Warning devices are activated if the security alarm is attempted to be set without the garage door and windows in the home being closed. Once the security alarm has been set, the lock out circuitry also disables the garage door motor control circuitry until the security alarm is first deactivated. The transmitter generates a digital pulse train according to a preselected code, with the operation of the dual buttons changing the state of a particular control bit in the pulse train. A central control module in the garage includes a receiver with channel monitoring circuitry designed to detect the state of the control bit to initiate different functions, for example, the setting of the security alarm and the actuation of the garage door. The system further includes a heat sensor in the central control module and advantageously uses a line carrier to transmit status information regarding the monitored parameters to a remote module in the home. A maximum run timer and motor overload protection for the motor control circuitry are also disclosed.
166 Citations
39 Claims
-
1. In an automatic garage door operating system having actuator means for controlling the position of the garage door in response to user-initiated door opening and closing signals, the improvement comprising;
-
toxic gas detector means for sensing the level of toxic gas in the garage, operative to provide an output signal when the level of toxic gas exceeds a predetermined level; means for coupling the output of said toxic gas detector means to said actuator means to open the garage door in response to the output signal from said toxic gas detector means; and lockout means for preventing said actuator means from closing the door as long as the toxic gas detector means senses an excessive level of toxic gas in the garage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
-
-
33. A home security and automatic garage door operator system comprising:
-
a central control module containing garage door actuator means for positioning the garage door and security alarm means for detecting illegal entry into a building; means for setting said security alarm system; and lock out means coupled to said door actuator means and being responsive to a signal from the setting means for disabling said door actuator means when the security alarm has been set. - View Dependent Claims (34, 35)
-
-
36. In an automatic garage door operating system having actuator means for controlling the position of the garage door, the improvement comprising:
- a transmitter for transmitting a door actuating signal;
a receiver for receiving said door actuating signal from the transmitter, operative to generate an output signal in response thereto; toxic gas detector means for sensing the level of toxic gas in the garage, operative to provide an output signal when the level of toxic gas exceeds a predetermined level; means coupling the output of said toxic gas detector means to said actuator means to open the garage door in response to the output signal from said toxic gas detector means; and lock out means coupled between the receiver output and the door actuator means, operative to prevent energization of said door actuator means during the pendency of the output signal from the toxic gas detector means. - View Dependent Claims (37, 38, 39)
- a transmitter for transmitting a door actuating signal;
Specification