Abstract: A power tool system has a power tool including an electrical device, a power device for powering the electrical device, a position or target detection system for detecting a position of the power tool and/or the power device, a source-based transceiver for at least transmitting data corresponding to the position detected by the position detection system, and a data retrieval and/or process equipment for selectively receiving data from the source-based transceiver at a position around the power tool and/or a position remotely removed away from the power tool.

Abstract: An authorization method for a smart TV is provided. When an application is to be activated, it is determined whether machine authorization information is stored. When the machine authorization information is stored, a client certificate corresponding to the application is searched for. When the client certificate is found, it means the application is authorized. The application authorized by a server can then be activated.

Abstract: The present invention relates to a method for flocculating and dewatering oil sands fine tailings. Said method comprises mixing the aqueous mineral suspension with a poly(ethylene oxide) (co)polymer to form a dough-like material. The material is then dynamically mixed in an in-line reactor to break down the dough-like material to form microflocs having an average size of 1 to 500 microns, and to release water. The internal diameter of the in-line reactor is at most five times the internal diameter of the inlet pipe of the reactor. The suspension of microflocs has a viscosity of at most 1000 cP and a yield stress of at most 300 Pa.

Abstract: The present invention relates to an in situ staged steam extraction method for removing petroleum products from a heavy oil or bitumen reservoir from subterranean locations. Specifically, each injection stage comprises a different steam composition. A steam composition may consist essentially of steam or may comprise one or more enhanced oil recovery agent.

Abstract: An example method for controlling an electric motor in an electric tool includes detecting travel of the trigger, selecting a smoothing coefficient N according to travel of the trigger in a predetermined time, driving the electric motor with an output duty ratio which is figured out by a formula in which the smoothing coefficient N is a denominator so as to cause the output duty ratio to be lesser than a preset duty ratio. The methods described will decrease the current impact on electric motors when users pull the trigger.

Abstract: This invention is concerned with the control and design of a LED lighting system that does not need electrolytic capacitors in the entire system and can generate light output with reduced luminous flux fluctuation. The proposal is particularly suitable, but not restricted to, off-line applications in which the lighting system is powered by the ac mains. By eliminating electrolytic capacitors which have a limited lifetime of typically 15000 hours, the proposed system can be developed with passive and robust electrical components such as inductor and diode circuits, and it features long lifetime, low maintenance cost, robustness against extreme temperature variations and good power factor. No extra electronic control board is needed for the proposed passive circuits, which can become dimmable systems if the ac input voltage can be adjusted by external means.

Abstract: A power tool system with a separate data processing or displaying equipment is provided. The power tool system includes a power tool, a detection device, a store device, a transceiver, a controller adapted to be in data communication with at least one of the detection device, the store device and the transceiver, and a wireless data retrieval and/or process sub-system adapted for receipt of data from the transceiver and/or transmission of control command to the transceiver, wherein the wireless data retrieval and/or process sub-system includes a data process or display equipment independent of the power tool and is configured to be remotely removed away from the power tool so as to have a separate and/or remote piece of equipment for processing or displaying a select data from the power tool or the power tools on the data process or display equipment.

Abstract: An electric screwdriver includes a motor having a motor shaft, a handle housing for accommodating the motor, an output shaft at least partly protruding from the handle housing, a transmission device for enabling the motor shaft to drive the output shaft to rotate around a first axis, an exploring antenna for detecting whether an object is charged, an operating switch coupled to the handle housing for controlling the motor, a first wire stripping member fixedly mounted to the handle housing; and a second wire stripping member rotatably connected to the handle housing.

Abstract: A communication system with serial ports for automatically identifying device types and communication protocols and method thereof are described. The communication system and method are capable of automatically identifying the device types and communication protocols of interface devices with different serial device numbers which are disposed in the serial port architecture. Furthermore, the drivers are capable of performing a serial communication based on the serial port architecture for matching the device types and communication protocols correspondingly, thereby reducing the development and manufacturing costs of communication system. Moreover, the user of an application program module only needs to provide the device numbers and data control information without the cooperation of hardware circuits and manufacturing technique of the interface devices to complete the automatic control and monitoring tasks of the interface devices to increase the utilization convenience.

Abstract: An electronic device including a first body, a first connecting assembly, a second body, and a second connecting assembly is provided. The first body has a recess, and the first connecting assembly is disposed at the first body and hidden in the recess. The second connecting assembly is disposed on the second body in protruding manner. The second connecting assembly is fit to be assembled in the recess and electrically connected to the first connecting assembly, such that the first and the second bodies are detachably assembled to each other.

Abstract: A method for vehicle positioning is provided, which includes the steps of identifying at least one vehicle in an image, obtaining identification information of each vehicle from the image, and transforming coordinates of each vehicle in the image into positioning information of the corresponding vehicle according to mapping information. The positioning information is a position of the corresponding vehicle in real world. Precise lane-level vehicle positioning can be achieved based on comparison with the identification information or the positioning information.

Abstract: An electric screwdriver includes a motor having a motor shaft, a handle housing for accommodating the motor, an output shaft at least partly protruding from the handle housing, a transmission device for enabling the motor shaft to drive the output shaft to rotate around a first axis, an exploring antenna for detecting whether an object is charged, an operating switch coupled to the handle housing for controlling the motor, a first wire stripping member fixedly mounted to the handle housing; and a second wire stripping member rotatably connected to the handle housing.

Abstract: A power plug including an insulation main body is provided. A first pillar and a second pillar arranged at the insulation main body. Only a first channel for inserting a first plug terminal is defined on the first pillar and multiple second channels for inserting second plug terminals are defined on the second pillar. A power receptacle including an insulation base is provided. A first slot and a second slot respectively corresponding to the first pillar and the second pillar are defined at the insulation base. Only a first receptacle terminal is inserted in the first slot. Multiple second receptacle terminals arranged at interval and parallel with each other are inserted in the second slot. The first receptacle terminal and the second receptacle terminals are arranged in a row. The power plug and the power receptacle are thereby limited to correctly couple.

Abstract: The present disclosure discloses a networking method and apparatus for a home network with a universal wired medium networking technology. The method includes: receiving, by a G.hn network device, a key-press operation; broadcasting a notice of open registration of a current domain and receiving joining application information of applying for joining in the current domain from an extra-domain node in a first preset time window, by the G.hn network device; determining, by the G.hn network device, whether a signal intensity of the extra-domain node transmitting the joining application information is not less than a first preset threshold; and allowing, by the G.hn network device, the extra-domain node to join in the current domain if the signal intensity of the extra-domain node transmitting the joining application information is not less than the first preset threshold.

Abstract: A torsion-adjustable impact wrench, includes a housing, a powering unit including an impact mechanism configured to generate an intermittently increasing torque, an adjusting unit configured to manually set a first torsion value and generate a corresponding a first torsion signal, a detecting unit configured to detect a rotational speed of the powering unit and generate a corresponding first rotational speed signal, and a control unit configured to generate a control signal for controlling the output of the rotational speed of the powering unit. The control unit generates a second rotational speed signal according to the first torsion signal outputted by the adjusting unit, compares the first rotational speed signal with the second rotational speed signal, and generates a control signal enabling the rotational speed of the powering unit to approach the second rotational speed.

Abstract: A cover opening structure including a case, a cover, a pushing button, a pushing unit and an axle is provided. The cover has a first portion having a first side, a second portion having a second side connected to the case, and a connecting portion connected therebetween, wherein the connecting portion is softer than the first and second portions. The pushing button disposed on the case has a body and an inserting portion extended from the body. The pushing unit has a first end, a second end and a leaning portion connected therebetween and is inserted between the body and the first end. The axle is disposed at the case while the leaning portion leans against the axle. The pushing unit rotates about the axle while the first end moves downward and the second end moves upward to push up the first portion when the pushing button is moved.

Abstract: An impact type fastening tool, has a housing, a motor received in the housing, a main switch for controlling ON and OFF operations of the motor, an impact mechanism connected to the motor, and a control device. The control device comprises a current detecting module and a main control module connected to the current detecting module. The main control module can judge whether the impact mechanism performs an impact according to the signal detected by the current detecting module and control the motor to automatically stop in a preset time period after the impact mechanism performs an impact.

Abstract: A power tool for driving a screwdriver bit and a drill bit. The power tool may include a tool device and a clamping device. The tool device may include a motor, a tool housing for receiving the motor, an outputting shaft forming an insertion hole for being inserted by the screwdriver bit, and a driving shaft configured to drive the outputting shaft to rotate about a center axis and forming an insertion socket. The clamping device may include a clamping head configured to clamp the drill bit, a connector for connecting the clamping head with the tool device detachably, and a transmitting member configured to pass through the insertion hole and insert into the insertion socket so that the driving shaft drives the clamping head rotate.

Abstract: A method for controlling a torque output of a DC electric tool, includes presetting torque levels and voltage ranges corresponding to the torque levels, detecting the current output voltage of a battery and determining the voltage range in which the current output voltage is located, determining whether or not the current voltage range matches the preset torque level or not, and if the current voltage range does not match the preset torque level providing a warning that the torque output cannot reach the preset torque level and calculating and displaying a maximum torque level corresponding to the actual torque output value and, if the current voltage range does match the preset torque level, calculating the current actual torque output value and keeping a PWM modulation value constant if the torque output value conforms to the preset torque level or increasing the PWM modulation value for compensation if the torque output value does not conform to the preset torque level.

Abstract: A rotation speed control method for impact type fastening tools has a presetting step and a dynamic control step. The presetting step includes setting a plurality of working positions, and setting a PWM signal with a larger duty cycle as a driving signal in a period after energization so that a motor can rotate at a higher speed and improve work efficiency. When a main controller judges, according to feedback, that the operation enters an impact phase and torsion control is needed to reduce rotation speed, the main controller makes adjustment by driving the motor with a PWM signal with a lower duty cycle corresponding to a working position currently set by the user. The control method improves work efficiency, and meet the user's need of driving a fastener with a higher rotation speed at an early stage of operation.