Energy managed wireless sensors
A system and method manages power in a wireless micro-sensor having a self-contained energy source. The system and method identify the rated capacity of the self-contained energy course by processing an identification value of the self-contained energy source and measuring the temperature of the self-contained energy source over time. The system and method determine temperature trends, measure the depth of discharge of the self-contained energy source, and control the asynchronous transmission of the micro-sensor. The transmission occurs in response to the measured temperatures, the determined temperature trend, and the depth of discharge of the self-contained energy source.
1. A method of managing power in a wireless micro-sensor comprising:
providing a self-contained energy source through a one-time electrical charge that sources the operation of the wireless micro-sensor's functional lifetime;
identifying the rated capacity of the self-contained energy course by processing an identification value of the self-contained energy source;
measuring the temperature of the self-contained energy source over time and determining a temperature trend;
measuring the depth of discharge of the self-contained energy source; and
controlling the asynchronous transmission of the micro-sensor in response to the measured temperatures of the self-contained energy source, the temperature trend of the self-contained energy source, and the depth of discharge of the self-contained energy source.
2. The method of claim 1 where controlling the asynchronous transmission comprises controlling the duty cycle sourcing a communication sub-system of the wireless micro-sensor.
3. The method of claim 2 further comprises modulating the duty cycle in response to the depth of discharge exceeding a predetermined threshold.
4. The method of claim 2 further comprises reducing the duty cycle in response to the depth of discharge exceeding a predetermined threshold.
5. The method of claim 2 where the communication sub-system is compliant with a third generation and a fourth generation broadband cellular network protocol standard.
6. The method of claim 2 further comprising increasing the amount of time between wireless transmission events.
7. The method of claim 2 where the control of the duty cycle occurs in response to a hysteresis.
8. The method of claim 7 where the control of the duty cycle occurs in response to a level of degradation of the self-contained energy source.
9. A non-transient computer readable medium storing a program that secures communication across a network, comprising:
computer program code that identifies the rated capacity of the self-contained energy course by processing an identification value of the self-contained energy source;
computer program code that measures the temperature of the self-contained energy source over time and determining a temperature trend;
computer program code that measures the depth of discharge of the self-contained energy source; and
computer program code that controls the asynchronous transmission of the micro-sensor in response to the measured temperatures of the self-contained energy source, the temperature trend of the self-contained energy source, and the depth of discharge of the self-contained energy source.
10. The non-transient computer readable medium of claim 9 where controlling the asynchronous transmission comprises controlling the duty cycle sourcing a communication sub-system of the wireless micro-sensor.
11. The non-transient computer readable medium of claim 10 further comprises modulating the duty cycle in response to the depth of discharge exceeding a predetermined threshold.
12. The non-transient computer readable medium of claim 10 further comprises reducing the duty cycle in response to the depth of discharge exceeding a predetermined threshold.
13. The non-transient computer readable medium of claim 10 where the communication sub-system is compliant with a third generation and a fourth generation broadband cellular network protocol standard.
14. The non-transient computer readable medium of claim 10 further comprising increasing the amount of time between wireless transmission events.
15. The non-transient computer readable medium of claim 10 where the control of the duty cycle occurs in response to a hysteresis.
16. The non-transient computer readable medium of claim 15 where the control of the duty cycle occurs in response to a level of degradation of the self-contained energy source.
17. A self-configuring wireless micro-sensor, comprising:
a self-contained energy source that sources the operation of the wireless micro-sensor's functional lifetime through a one-time electrical charge;
a controller and a memory that controls the wireless micros sensor's operation, timing, and execution of the sensor's communication protocols;
a transceiver subsystem that enables the wireless micros sensor to communicate with a remote server;
a sensor subsystem that detects changes in a physical variable; and
a power subsystem that mages the power to the wireless micro-sensor through the self-contained energy source in response to measured temperatures of the self-contained energy source, a temperature trend of the self-contained energy source, and the depth of discharge of the self-contained energy source.
18. The system of claim 17 where the controller controls asynchronous transmission from the micro-sensor by controlling the duty cycle sourcing a communication sub-system of the wireless micro-sensor.
19. The system of claim 18 where the controller modulates the duty cycle in response to the depth of discharge exceeding a predetermined threshold.
20. The system of claim 18 where the controller modulates the duty cycle in response to a hysteresis.