Pellet grills including a control system that implements, manages, and/or controls various ignition-based protocols are disclosed. An example pellet grill includes a cooking chamber, a burn pot, an ignitor, and a controller. The ignitor extends into the burn pot and is configured to ignite pellet fuel located within the burn pot. The controller is configured to detect a temperature pattern of the cooking chamber corresponding to a flame out condition of the burn pot. The controller is further configured, in response to detecting the temperature pattern, to command the ignitor to activate during a first duration. The controller is further configured to determine, following expiration of the first duration, whether a temperature of the cooking chamber increased during the first duration. The controller is further configured, in response to determining that the temperature has not increased during the first duration, to command the ignitor to activate during a second duration.

A measurement device (MD) includes a processor to sample electrical signals of a circuit connected to a sensor, such as a current transformer, and to provide measurement data to a processing system (PS) based on the sampled electrical signals. An electrical circuit carrying AC electricity to and from an electrical shop tool (EST) can pass through the sensor. The measurement data can represent use or non-use of the EST. An EST, such as a vehicle lift or wheel balancer, can comprise an electrical motor connected to the electrical circuit. An EST, such as an air compressor, can comprise an electrical pump connected to the electrical circuit. The PS can determine an actionable condition based on a single measurement value or an aggregate of measurement values and determine a notification to send to a destination regarding the actionable condition. The destination can be a user account, a smartphone, or another destination.

A measurement device (MD) includes a processor to sample electrical signals of a circuit connected to a sensor, such as a current transformer, and to provide measurement data to a processing system (PS) based on the sampled electrical signals. An electrical circuit carrying AC electricity to and from an electrical shop tool (EST) can pass through the sensor. The measurement data can represent use or non-use of the EST. An EST, such as a vehicle lift or wheel balancer, can comprise an electrical motor connected to the electrical circuit. An EST, such as an air compressor, can comprise an electrical pump connected to the electrical circuit. The PS can determine an actionable condition based on a single measurement value or an aggregate of measurement values and determine a notification to send to a destination regarding the actionable condition. The destination can be a user account, a smartphone, or another destination.

A method for protecting a nonmobile work machine driven by an electric motor includes determining, via a measuring unit, at least one measured value of a time-critical parameter of the work machine. The work machine is switched off when the determined measured value of the time-critical parameter is outside a predefined setpoint range. The determined measured value of the time-critical parameter is quantized in a level signal and transmitted as a first signal to an evaluation unit via an interface, and a second signal for further information concerning the work machine, to be transmitted from the measuring unit to the evaluation unit, is modulated to the first signal.

A method for protecting a nonmobile work machine driven by an electric motor includes determining, via a measuring unit, at least one measured value of a time-critical parameter of the work machine. The work machine is switched off when the determined measured value of the time-critical parameter is outside a predefined setpoint range. The determined measured value of the time-critical parameter is quantized in a level signal and transmitted as a first signal to an evaluation unit via an interface, and a second signal for further information concerning the work machine, to be transmitted from the measuring unit to the evaluation unit, is modulated to the first signal.

A processor receives measurement data from a measurement device (MD) connected to an electrical shop tool (EST). The MD can sample electrical signals of a circuit connected to a sensor, such as a current transformer, and provide measurement data based on sampled signals. The measurement data can represent use or non-use of the EST. An EST, such as a vehicle lift or wheel balancer, can comprise an electrical motor connected to the electrical circuit. An EST, such as an air compressor, can comprise an electrical pump connected to the electrical circuit. The processor can determine an actionable condition based on a single measurement value or an aggregate of measurement values and determine a notification to send to a destination regarding the actionable condition. The actionable condition can be based on a rule regarding a person's preferences and attributes. The destination can be a user account, a smartphone, or another destination.

A processor receives measurement data from a measurement device (MD) connected to an electrical shop tool (EST). The MD can sample electrical signals of a circuit connected to a sensor, such as a current transformer, and provide measurement data based on sampled signals. The measurement data can represent use or non-use of the EST. An EST, such as a vehicle lift or wheel balancer, can comprise an electrical motor connected to the electrical circuit. An EST, such as an air compressor, can comprise an electrical pump connected to the electrical circuit. The processor can determine an actionable condition based on a single measurement value or an aggregate of measurement values and determine a notification to send to a destination regarding the actionable condition. The actionable condition can be based on a rule regarding a person's preferences and attributes. The destination can be a user account, a smartphone, or another destination.

The system includes a digital counter adapted to display a number which is changed in response to an actuation signal. A lock assembly mounted to the cargo door is connected to the counter. The lock assembly has a hollow housing within which a member having a recess adapted to receive the handle is moveable by the handle between an unlocked position, wherein the door may be opened, and a locked position, in which the door is prevented from being opened. A magnetically actuated switch is mounted within the housing. The switch is adapted to generate an actuation signal to the digital counter in response to movement of the member within the housing from its locked position. The signal causes the counter to change the displayed number, indicating that the door may have been opened in transit.

A system and method includes a master/slave data bus, a plurality of sensing nodes, and a master node configured to communicate with the plurality of sensing nodes over the master/slave data bus. The master node is configured to command the plurality of sensing nodes into an event monitoring mode over the master/slave data bus. The plurality of sensing nodes are configured to digitize and retain a first amount of data during a listening mode of the event monitoring mode and detect an event based upon the first amount of data. The plurality of sensing nodes are further configured to drive an event trigger on the master/slave data bus upon detection of the event, and digitize and retain a second amount of data following detection of the event trigger on the master/slave data bus.

A system and method includes a master/slave data bus, a plurality of sensing nodes, and a master node configured to communicate with the plurality of sensing nodes over the master/slave data bus. The master node is configured to command the plurality of sensing nodes into an event monitoring mode over the master/slave data bus. The plurality of sensing nodes are configured to digitize and retain a first amount of data during a listening mode of the event monitoring mode and detect an event based upon the first amount of data. The plurality of sensing nodes are further configured to drive an event trigger on the master/slave data bus upon detection of the event, and digitize and retain a second amount of data following detection of the event trigger on the master/slave data bus.