Remote detection device
First Claim
1. A remote detection device comprising:
- a measurement device including a switch movable between an open and a closed position, and a shorting device operable to short a communication line, wherein the measurement device is adapted to be connected to a first wire of the communication line, wherein the shorting device is adapted to be connected to a second wire of the communication line, and wherein the measurement device is connected to the shorting device to define an electrical circuit, wherein said measurement device and said shorting device operate without power applied thereto.
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Accused Products
Abstract
The present invention provides a remote detection device including a conventional measurement device, such as a thermostat, having an internal contact which is wired in series with a resistor and two wires of a standard telephone line. When the measurement device reaches or surpasses a predetermined set value, such as a predetermined temperature, the measurement device will close the internal contact such that the resistor will short the telephone line. Accordingly, when the ambient condition has reached or surpassed the predetermined set value, the owner or manager of a building will receive a busy signal when dialing a telephone line connected to the remote detection device. In another embodiment the remote detection device may comprise a computer program component which periodically monitors the status of a communication line connected to the measurement device at the remote location.
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Citations
18 Claims
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1. A remote detection device comprising:
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a measurement device including a switch movable between an open and a closed position, and a shorting device operable to short a communication line, wherein the measurement device is adapted to be connected to a first wire of the communication line, wherein the shorting device is adapted to be connected to a second wire of the communication line, and wherein the measurement device is connected to the shorting device to define an electrical circuit, wherein said measurement device and said shorting device operate without power applied thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A remote indication system comprising:
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a sensing device including a switch movable between a non-contact position and a contact position;
a shorting device operable to short a communication line wherein a first wire of the communication line is connected to said sensing device, a second wire of the communication line is connected to said shorting device, and wherein the sensing device is connected to the shorting device to define an electrical circuit; and
an automatic dialing device positioned remote from said sensing device and said shorting device and connected to said electrical circuit via said communication line, wherein said electrical circuit operates to short said communication line without power input thereto. - View Dependent Claims (12, 13, 14)
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15. A remote indication device comprising:
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a sensing device including a switch movable between a non-contact position and a contact position, a shorting device operable to short a communication line, wherein a first wire of the communication line is connected to the sensing device, wherein a second wire of the communication line is connected to the shorting device, and wherein the shorting device is connected to the sensing device to define an electrical circuit, and a determination device positioned remote from said sensing device and said shorting device, said determination device operable to dial a telephone number associated with said communication line so as to determine the position of the switch from a remote location, wherein said communication line will deliver a busy signal to said determination device when said switch in is in the closed position and said communication line will deliver a ringing signal to said determination device when said switch is in the open position, while said sensing device and said shorting device are un-powered. - View Dependent Claims (16, 17, 18)
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Specification