Wireless control and status monitoring for electric grill with current protection circuitry
Provided is an apparatus and method for protecting against unsafe electric current conditions. An example method includes accessing a selected operating mode for a heating element of the electric grill using at least one user input device of the electric grill, the heating element connected to a voltage line and a neutral line; measuring, using a temperature probe, a temperature of the heating element; estimating an ambient temperature at a location within a cook box of the electric grill spaced apart from the heating element, the estimation of the ambient temperature based on the measured temperature of the heating element; and using the estimated ambient temperature to determine when a target temperature corresponding to the selected operating mode is reached.
1. An electric grill, comprising:
a heating element connectable to a voltage line and a neutral line;
a user input device for selecting an operating mode of the heating element;
a temperature probe to measure a temperature of the heating element;
a memory;
machine-readable instructions stored in the electric grill; and
a microprocessor to execute the machine-readable instructions to cause the microprocessor to:
estimate an ambient temperature at a location within a cook box of the electric grill spaced apart from the heating element, the estimation of the ambient temperature based on the measured temperature of the heating element;
use the estimated ambient temperature to determine whether a target temperature corresponding to the selected operating mode is reached; and
control activation of the heating element based on whether the target temperature corresponding to the selected operating mode is reached.
2. The electric grill of claim 1 , further including a wireless controller in communication with the microprocessor, wherein the microprocessor is to cause the wireless controller to wirelessly transmit the estimated ambient temperature to a remote device.
3. The electric grill of claim 2 , wherein the microprocessor is to execute the machine-readable instructions to cause the microprocessor to receive, via the wireless controller, a signal for controlling the operating mode of the heating element.
4. The electric grill of claim 3 , wherein the received signal is indicative of an “OFF” operating mode.
5. The electric grill of claim 1 , further including a ground fault detection unit configured to detect a ground fault error between the voltage line and the neutral line, the ground fault detection unit being in communication with the microprocessor.
6. The electric grill of claim 5 , wherein the microprocessor further includes a self-check pin for detecting a microprocessor failure.
7. The electric grill of claim 6 , wherein the microprocessor is to execute the machine-readable instructions to cause the microprocessor, in response to detecting an error condition, to store an error log in the memory, the error log to include a first error code associated with detection of a ground fault error condition, a second error code associated with detection of a microprocessor failure condition, and a third error code associated with detection of a current mismatch condition.
8. The electric grill of claim 7 , wherein the error log further includes an active time of the electric grill, a target temperature, and a measured temperature at the time of the error condition.
9. The electric grill of claim 1 , further including a display in electronic communication with the microprocessor, wherein the microprocessor is to execute the machine-readable instructions to cause the microprocessor to cause presentation of at least one of the measured temperature or the estimated ambient temperature on the display.
10. A method for operation of an electric grill, the method comprising:
accessing a selected operating mode for a heating element of the electric grill using at least one user input device of the electric grill, the heating element connected to a voltage line and a neutral line;
measuring, using a temperature probe, a temperature of the heating element;
estimating an ambient temperature at a location within a cook box of the electric grill spaced apart from the heating element, the estimation of the ambient temperature based on the measured temperature of the heating element; and
using the estimated ambient temperature to determine when a target temperature corresponding to the selected operating mode is reached.
11. The method of claim 10 , further including, in response to detecting an error condition, storing an error log in a memory, wherein the error log includes at least a first error code associated with the error condition.
12. The method of claim 11 , further including wirelessly transmitting the error log to a remote device.
13. The method of claim 10 , further including:
detecting a ground fault error condition using a ground fault detection unit connected to the voltage line and the neutral line; and
responding to the ground fault error condition by sending a signal indicative of the ground fault error condition to a microprocessor of the electric grill.
14. The method of claim 13 , further including using a self-check pin of the microprocessor to detect a microprocessor failure condition.
15. The method of claim 10 , further including presenting, on a display at the electric grill, the estimated ambient temperature.
16. At least one non-transitory computer readable storage medium comprising instructions, that, when executed, cause at least one processor of an electric grill to at least:
access a selected operating mode for a heating element of the electric grill using at least one user input device of the electric grill, the heating element connected to a voltage line and a neutral line;
measure, using a temperature probe, a temperature of the heating element;
estimate an ambient temperature at a location within a cook box of the electric grill spaced apart from the heating element, the estimation of the ambient temperature based on the measured temperature of the heating element; and
use the estimated ambient temperature to determine when a target temperature corresponding to the selected operating mode is reached.
17. The at least one non-transitory computer readable storage medium of claim 16 , wherein the instructions, when executed, further cause the at least one processor, in response to detecting an error condition, to store an error log in a memory, wherein the error log includes at least a first error code associated with the error condition.
18. The at least one non-transitory computer readable storage medium of claim 17 , wherein the instructions, when executed, further cause the at least one processor to cause wireless transmission of the error log to a remote device.
19. The at least one non-transitory computer readable storage medium of claim 16 , wherein the instructions, when executed, further cause the at least one processor to:
detect a ground fault error condition using a ground fault detection unit connected to the voltage line and the neutral line; and
respond to the ground fault error condition by sending a signal indicative of the ground fault error condition to a microprocessor of the electric grill.
20. The at least one non-transitory computer readable storage medium of claim 13 , wherein the instructions, when executed, further cause the at least one processor to use a self-check pin of the microprocessor to detect a microprocessor failure condition.