193869 results about "Control engineering" patented technology

A driving tool having a driver, a power source, a sensor and a controller. The power source selectively provides an input to the driver to cause the driver to translate along an axis. The sensor senses a condition in the power source that is indicative of a level of kinetic energy of an element in the power source and generates a sensor signal in response thereto. The controller is coupled to the power source and the sensor and is responsive to the sensor signal for deactivating the power source to inhibit the power source from providing the input to the driver when the level of kinetic energy of the element in the power source is below a predetermined threshold. A method for operating a driving tool is also provided.

A system and method manage delivery of energy from a distribution network to one or more sites. Each site has at least one device coupled to the distribution network. The at least one device controllably consumes energy. The system includes a node and a control system. The node is coupled to the at least one device for sensing and controlling energy delivered to the device. A control system is coupled to the node and distribution network for delivery to the node at least one characteristic of the distribution network. The node controls the supply of energy to the device as a function of the at least one characteristic.

Methods and systems are provided for optimizing the control of energy supply and demand. An energy control unit includes one or more algorithms for scheduling the control of energy consumption devices on the basis of variables relating to forecast energy supply and demand. Devices for which energy consumption can be scheduled or deferred are activated during periods of cheapest energy usage. Battery storage and alternative energy sources (e.g., photovoltaic cells) are activated to sell energy to the power grid during periods that are determined to correspond to favorable cost conditions.

A substrate processing apparatus comprises a substrate handling chamber, a pair of position sensors, and a substrate transfer robot. Each of the sensors comprises an emitter configured to emit a beam of light, and a receiver configured to receive the light beam. The substrate transfer robot comprises an end effector and a robot actuator. The end effector is configured to hold a substrate such that the substrate has a same expected position with respect to the end effector every time the substrate is held. The robot actuator is configured to move the end effector within the handling chamber to transfer substrates among a plurality of substrate stations. An edge of a substrate held in the expected position by the end effector can partially block a light beam of one of the position sensors, while another end of the end effector partially blocks a light beam of the other position sensor.

An impact tool includes: a motor; a trigger; a controller configured to control driving power supplied to the motor using a semiconductor switching element according to an operation of the trigger; a striking mechanism configured to drive a tip tool continuously or intermittently by rotation force of the motor, the striking mechanism including a hammer and an anvil. The controller drives the semiconductor switching element at a high duty ratio when the trigger is manipulated. The motor is driven so that the duty ratio is lowered before a first striking of the hammer on the anvil is performed and the first striking is performed at a low duty ratio lower than the high duty ratio.

An intelligent network demand control system provides a system and method for controlling demand in an energy delivery system. Various embodiments of the intelligent network demand control system employs a transceiver network with a plurality transceivers coupled to meters and appliances residing at a plurality of customer premises. Control room operators instruct a customer premises (CP) energy management controller to implement a reduction in system demand. A demand reduction control signal is relayed out to a predefined group of transceivers to bring their respective controlled generators on line. The predefined transceivers, identified by their identification codes, are specified in the demand reduction control signal. The actual demand reduction is metered and relayed back to the CP energy management controller. In some embodiments, the total demand reduction is aggregated into a single number and then communicated to the operators.

The present invention provides control methods, control systems, and control software for microfluidic devices that operate by moving discrete micro-droplets through a sequence of determined configurations. Such microfluidic devices are preferably constructed in a hierarchical and modular fashion which is reflected in the preferred structure of the provided methods and systems. In particular, the methods are structured into low-level device component control functions, middle-level actuator control functions, and high-level micro-droplet control functions. Advantageously, a microfluidic device may thereby be instructed to perform an intended reaction or analysis by invoking micro-droplet control function that perform intuitive tasks like measuring, mixing, heating, and so forth. The systems are preferably programmable and capable of accommodating microfluidic devices controlled by low voltages and constructed in standardized configurations. Advantageously, a single control system can thereby control numerous different reactions in numerous different microfluidic devices simply by loading different easily understood micro-droplet programs.

An image capturing device is robotically positioned and oriented in response to operator manipulation of a master control device. An unused degree-of-freedom of the master control device is used to adjust an attribute such as focusing of the image capturing device relative to a continually updated set-point. A deadband is provided to avoid inadvertent adjusting of the image capturing device attribute and haptic feedback is provided back to the master control device so that the operator is notified when adjusting of the attribute is initiated.

System and method for processing a safety signal in an autonomous vehicle. Safety signals are typically generated in response to the detection of unsafe conditions or are sent by the vehicle operator. In either case, the safety signals are conveyed using redundant communication paths. The paths include a computer network and a current loop. The safety signals are processed, thereby causing actuators (e.g., linkages) to manipulate input devices (e.g., articulation controls and drive controls, such as a throttle, brake, tie rods, steering gear, throttle lever, accelerator, or transmission shifter). The manipulation ensures the vehicle responds appropriately to the safety signals, for example, by shutting down the vehicle.