36results about How to "Prevent power transmission" patented technology

An industrial robot (10) comprising three power transmission units (21, 22, 23) arranged concentrically and three drive means for driving the three power transmission units, respectively, is disclosed. The drive means for at least one of the three power transmission units includes two motors (31, 34). Also, all of the three power transmission units and the three drive means are desirably built into the base (15) of the industrial robot. This configuration makes it possible to have high-duty operation with a comparatively compact structure.

A method of controlling power in a wireless power receiver to wirelessly receive power from a wireless power transmitter and transmit the power to a load, the method comprising of receiving AC power from the wireless power transmitter that receives power from a power supply device, rectifying the AC power to DC power and controlling DC power applied to the load by comparing the DC power with a threshold voltage.

A vehicle 1 has a torque coupling 8, which is located in a driving power transmission system for transmitting the torque of an engine 2 to front and rear wheels 13f, 13r. The torque coupling 8 changes the torque distribution by adjusting the frictional engaging force of an electromagnetic clutch 16. The vehicle 1 also has a 4WD ECU 21 (CPU), which controls the operation of the torque coupling 8 based on the driving state. The 4WD ECU 21 (CPU) estimates a transfer case oil temperature Tptu. When the transfer case oil temperature Tptu is higher than or equal to a first predetermined transfer case oil temperature KTptu1, the 4WD ECU 21 executes overheat prevention control. When the deviation ΔA between an estimated vehicle acceleration Ae, which is computed based on a predetermined vehicle weight M and a driveline torque τd of the engine 2, and the actual vehicle acceleration Av is greater than or equal to a first predetermined deviation KΔA1, the 4WD ECU 21 (CPU) estimates the transfer case oil temperature Tptu to be higher. This allows the control mode of the torque coupling 8 to be smoothly switched to the overheat prevention control.

The notification system is applicable to a wireless power transfer system configured to transmit power in a wireless manner from a power transmission coil of a power transmission device provided in a parking space to a power reception coil mounted on a vehicle. The notification system includes a display device and a control device. When the distance between the power transmission device and the vehicle is less than a predetermined distance, a wireless communication is established between the power transmission device and the vehicle. After the wireless communication is established between the power transmission device and the vehicle, the control device performs a foreign object detection process to detect whether or not a foreign object is present above the power transmission coil. If a foreign object is detected by the foreign object detection process, the control device displays a foreign object detection image on a screen of the display device.

The invention discloses a system and a method for controlling an online type photovoltaic power generation microgrid without a storage device. The system comprises a photovoltaic component, a power controller, a grid-connected inverter system, a current detection device and a reverse-power protector, the photovoltaic component is connected with the grid-connected inverter system through the power controller, output of the grid-connected inverter system and grid current are connected to simultaneously supply power to load, the power controller enables a photovoltaic power generation system to be in a variable power output state and dynamically adjusts output power of the photovoltaic power generation system according to changes of the load, the current detection device detects magnitude and phase position of the grid current as current feedback control signals of the grid-connected inverter system, and the reverse-power protector is positioned between the microgrid and an outer grid to stop the microgrid from transmitting current to the outer grid. The system is free of a storage battery energy storage system, the outer grid is only a supplement when the microgrid is in power shortage, and power transmission to the outer grid is effectively avoided, so that effects of electricity saving can be realized without upgrading power transmission networks and power distribution networks, and popularization is facilitated.

The invention relates to a detection device and method for a distribution line ground wire based on three-phase symmetrical voltage injection. The three-phase symmetrical detection voltage with stable amplitude is injected into the distribution line to be tested, and the current current of any phase in the distribution line to be tested is detected. According to the three-phase symmetrical detection voltage and current current, it is judged whether the distribution line to be tested is There is a ground wire. The distribution line ground wire detection device and method based on three-phase symmetrical voltage injection proposed by the present invention can effectively judge whether there is a temporary ground wire on the distribution line to be tested, prevent power transmission with a ground wire or a ground knife switch, and reduce temporary grounding Possibility of line missed detection ensures the safety of electric workers.

The invention relates to a static energy resolution CT (Computed Tomography) scanner which comprises a power system, an X-ray source system, a detector system, a data acquisition system and a computer, wherein the X-ray source system comprises an annular X-ray source and an annular front collimator, the annular X-ray source comprises a plurality of X-ray source modules based on carbon nano tubes, a plurality of collimator slits are distributed on the annular front collimator, and each X-ray source module corresponds to a collimator slit; the detector system comprises two annular detectors arranged at the inner side of the annular X-ray source, a slit is reserved between the annular detectors, and each annular detector consists of a plurality of detector modules used for carrying out energy resolution on X photons; the data acquisition system is connected behind the detector system and also connected with the computer; and X photons emitted out by the X-ray source sequentially pass through the slits of the annular front collimator and the slit between the annular detectors and are projected onto a detection surface at the opposite side. The static energy resolution CT scanner has the advantages of simple structure, low radiation dosage and short time of scanning for a circle.

The invention provides an interlocking operation mechanism and high-voltage switchgear therewith. The interlocking operation mechanism comprises an isolating main shaft which rotate around the axis of the isolating main shaft under the action of an external force, so as to drive a disconnecting switch to carry out the disconnecting operation; a first linkage structure which is linked with the isolating main shaft, and does not prevent the switching-on operation of a circuit breaker when the isolating main shaft drives the disconnecting switch to a disconnecting position or a connecting position. When the isolating main shaft drives the disconnecting switch to switch between the disconnecting position or the connecting position, the switching-on operation of the circuit breaker is prevented, and the circuit breaker is enabled not to be switched on. The mechanism can guide a worker to carry out the correct operation, avoids the misoperation, and is high in safety.

The invention relates to a system for an artificial intelligence interlocking automatic transmission, which includes an engine revolution per minute sensor and a vehicle speed sensor. A pair of ultrasonic sensors measure the vehicle's relative speed to neighboring vehicles, and an angle measurement sensor measures the degree of change in the angle of the steering wheel. The ECU firstly determines whether the accelerator pedal is incorrectly operated by monitoring the sensing signals of the engine rpm sensor and the vehicle speed sensor, secondly determines whether the accelerator pedal is incorrectly operating by using the sensing signal of the ultrasonic sensor, and The signal of the angle measuring sensor is monitored to determine for the third time whether the accelerator pedal has been incorrectly actuated. A transmission control unit (TCU) executes artificial intelligence interlock control of an automatic transmission when receiving a determination signal informing that an accelerator pedal is erroneously operated from the ECU.

The invention discloses a device for efficiently capturing and utilizing ocean current energy, which comprises a box, and two diversion covers are installed on the top of the box to realize collection, acceleration and guidance of ocean currents; A plurality of movable blades, the bottom of each movable blade is connected with a blade bracket, each blade bracket is connected with a bushing, each bushing is set on two guide wheel shafts, and a guide wheel is installed at both ends of each guide wheel shaft , the guide wheel can move circularly along the circular guide track, all the bushings are fixedly connected with the same belt, the belt is driven to rotate by the movement of the movable blade, the belt drives the pulley to rotate, and the pulley Then, it is connected with the generator through the speed-increasing mechanism to realize the collection and conversion of ocean current energy.