CO end of life timing circuit
View Patent ↗A system for indicating an end of a life cycle time period for a device which may include a sensor device or detector for measuring an environmental condition. A control device communicates with the device and includes a programmable timing mechanism for measuring a life cycle time period. The control device initiates an end of life cycle indicator such as a fault message after the life cycle time period has elapsed. The life cycle time period may be measured from a date of manufacture of the device. The life cycle time period may also be measured from a date of installation of the device when the date of manufacture of the sensor device is unknown. In the case of sensor devices or detectors an environmental condition for measuring by the detector may include carbon monoxide levels in an enclosed area where the device is a respective carbon monoxide detector.
1. A system for indicating the end of a life cycle of a device, comprising:
a control device;
a user interface of the control device that accepts entry of a specified date;
a remote device wired or wirelessly coupled to communicate with the control device; and
a programmable timing mechanism includes a computer program embodied in a computer readable medium readable by a computer included in the control device that calculates a life cycle time period of the remote device during installation of the remote device from the specified date, and the programmable timing mechanism initiating a remote end of life cycle indicator upon expiration of the life cycle time period and the programmable timing mechanism automatically calculates the life cycle time period from a date of installation in the absence of entry of the specified date through the user interface.
2. The system of claim 1 , wherein the remote device is a sensor device.
3. The system of claim 1 , wherein the remote device is a sensor device for measuring an environmental condition.
4. The system of claim 1 , wherein the specified entered date is a date of manufacture of the remote device.
5. The system of claim 1 , wherein the specified entered date is a date of installation of the remote device.
6. The system of claim 1 , wherein the specified entered date is a date of manufacture of the remote device or when the date of manufacture is not entered, the computer program defaults to entering a date of installation.
7. The system of claim 1 , wherein the remote device is a carbon monoxide detector for measuring carbon monoxide levels in an enclosed area.
8. The system of claim 1 , wherein the remote device further comprises a respective plurality of environmental sensor devices each sensor device of the plurality of sensor devices having a specified life cycle time period, and the sensor devices initiate a respective environmental condition indicator relating to each environmental condition sensed by the sensor.
9. The system of claim 8 , wherein the plurality of environmental conditions include carbon monoxide levels, smoke levels, and heat levels in an enclosed area, and the plurality of sensor devices include a carbon monoxide detector, a smoke detector, and a heat detector, respectively.
10. The system of claim 8 , wherein at least one sensor device is electrically connected to the control device, and at least one sensor device communicates wirelessly with the control device.