33results about How to "Normal load" patented technology

The invention relates to a load control circuit and a control method thereof. The load control circuit comprises a low-pass filter, a high-pass filter, a driving circuit, an electronic switch and a relay circuit, wherein the low-pass filter, the high-pass filter, the driving circuit, the electronic switch and the relay circuit are successively connected. The low-pass filter is connected with the high-pass filter, thereby forming a band pass filter. The critical frequency of the low-pass filter is omega1, and the critical frequency of the high-pass filter is omega2, wherein omega1>omega2. The low-pass filter is used for connecting with the control signal output end of a controller. The band pass filter is used for performing gating processing on a control signal which is output from the control signal output end of the controller. The driving circuit is used for switching on and switching off the electronic switch according to the control signal after gating process and furthermore controlling the operation state of the relay circuit. The relay circuit is used for connecting and disconnecting a load and a power supply. The load control circuit and the control method thereof can settle a problem of easy accident caused by interference to the controller.

The invention provides a method for running control of application programs. The method comprises the steps that an installation package which has the same package name with a host application program and is taken as an attached resource of the host application program is reflected and called, and a target application program implemented by the installation package is loaded, wherein resources required by the target application program have a one-to-one correspondence relationship with resources required by a native application program; a hook function is used to monitor activity processes of the target application program; and when the hook function monitors a calling instruction towards the activity processes of the target application program, the resources which are required by the native application program and have a one-to-one correspondence relationship with the resources required by the target application program can be called. The invention also provides a device for the running control of the application programs. By execution of the relevant resources of the target application program, an execution result which is completely the same with an execution result obtained by execution of the relevant resources of the native application program can be obtained; and the target application program is operated in a sandbox which is established by the host application program, so that installation and running activities are not sensed by a system.

The invention discloses an anti-blocking device for a filter screen of a dust collection device for textiles, which comprises an ash collection box, a feed opening is opened on one side of the ash collection box, and a filter screen is provided on the other side of the ash collection box. An air chamber is fixedly connected to the side of the ash collecting box close to the filter screen, a baffle is sealed in the air chamber, an impeller is arranged in the air chamber, and a rotating shaft is fixedly connected to the center of rotation of the impeller. The rotating shaft runs through the baffle and the rotating shaft is fixedly connected with a motor, which is connected with a conductive structure. In the present invention, when the filter screen is clogged, the temperature difference generated by the residual heat of the motor is used to form a thermoelectricity, so that the electric plate near the filter screen is electrified. Under the action of electrostatic adsorption, the dust in the filter is sucked off. On the other hand, when the internal energy of the motor is large, the voltage at both ends of the motor is reduced through the thermistor and the current is applied to the conductor ring, so that the principle of temperature difference refrigeration is used. The temperature of the motor drops to avoid burning out the motor.

The invention provides a document restoration method and system, a readable storage medium and computer equipment. The method comprises the steps that whether all the XSD documents in a current selected file directory contain wrong reference information or not is judged; if yes, the corresponding imported XSD documents are searched for according to the associated reference information related to the wring reference information; the wrong reference information is modified to be consistent with the corresponding information in the imported XSD documents. According to the document restoration method, the wrong imported information in XSD files can be repaired.

The present application provides a method and system for automatic and intelligent expansion and contraction of servers. The method includes: obtaining the capacity of the current server, expansion and contraction evaluation index data, and historical expansion and contraction record data; wherein, the expansion and contraction evaluation index data includes the server's Basic index data and business index data; obtain auxiliary reference index data that affect server capacity based on historical expansion and contraction record data; calculate server expectations based on current server capacity, expansion and contraction evaluation index data, and auxiliary reference index data Capacity: According to the current server capacity and the server's expected capacity, calculate the current capacity difference that needs to be expanded and contracted; perform server expansion and contraction operations based on the capacity difference. This application can evaluate the server capacity through various indicators, analyze whether the server needs to be expanded and reduced, and the size of the expansion and contraction, and can automatically expand and contract in time according to the analysis results, so that the server can run safely, stably and continuously.

The invention discloses an oil-free air compressor capable of being easy to move, and the oil-free air compressor structurally comprises a suction nozzle, a machine head, a driving machine, a compression air cylinder, a movable roller, an air purge and pressure relief device, a gas outlet valve, a switch and a push-pull handle. The suction nozzle is arranged on the side of the machine head and iscommunicated with the machine head, the driving machine is arranged on the top of the compression air cylinder and is connected with the machine head, and the moving roller is arranged on the bottom four ends of the compression air cylinder. According to an opposite air purge mechanism which is arranged on the compression air cylinder, two purge push plates are used to slide from both sides of thecompression air cylinder to the middle of the compression air cylinder oppositely and the remaining air is concentrated in the middle position of the compression air cylinder when the compressor is powered off; and meanwhile, according to an electromagnetic pressure release mechanism which is arranged in the middle of the compression air cylinder, the electromagnetic magnetic loss can open the pressure relief valve, and the electromagnetic pressure relief mechanism and the opposite air cleaning mechanism can cooperate to clear all the air, prevent the equipment from starting with pressure, ensure the motor load is normal, protect the motor and mechanical parts, and prolongs the service life.

The invention provides a transformer comprehensive load capacity evaluation system, an oil temperature detection mechanism, an evaluation module, an indicator light and several load modules. The oil temperature detection mechanism includes a first straight rod, a second straight rod, an adjustment rod, and a thermal bimetallic sheet And the push rod, after obtaining the rated load on the transformer nameplate and the upper limit of the insulating oil temperature, move the adjustment lever, and select the corresponding load module at the same time, the main control unit controls the load modules to connect to the transformer in turn, and after the transformer is running with load, The temperature of the internal insulating oil will rise, causing the heated bimetal to bend upwards, thereby driving the push rod to move upward. If all the load modules are connected to the transformer, the push rod can just move to the bottom of the adjustment rod and press the button Contact, the main control unit judges that the load status of the transformer is normal. If the button is triggered when the load modules are not fully connected, it means that the load status of the transformer does not match the calibration, and maintenance is required to prevent accidents.

The invention belongs to the field of power and electronic devices and particularly relates to an energy consumption type alternating-current electronic load. The electronic load comprises an alternating-current contactor, an alternating-current input filter inductor, an inverter bridge, a direct-current side capacitor, a chopping module, an energy consumption resistor, a detection module and a control module. The alternating-current contactor, the alternating-current input filter inductor, a first end and a second end of the inverter bridge and a to-be-measured power source form a circuit. A third end and a fourth end of the inverter bridge and the direct-current side capacitor form a circuit, and the chopping module and the energy consumption resistor are connected with the two ends of the direct-current side capacitor in series. The control module and the inverter bridge are connected with the chopping module, connection and disconnection of the inverter bridge and the chopping module are correspondingly controlled according to measured voltage and current values and preset parameters, and accordingly input current and power factors of the to-be-measured power source can be freely set; the voltage of the direct-current side capacitor is stably controlled, redundant energy is consumed, and the electronic load is simple in circuit structure and low in cost. The invention also discloses a work method of the electronic load.

The invention discloses a substation complete-shutdown and complete-transfer method. The substation complete-shutdown and complete-transfer method comprises the steps of: step 1, acquiring transferable load quantity of a current substation and load quantity to be transferred of a current line; step 2, judging magnitudes of the obtained transferable load quantity of the current substation and the obtained load quantity to be transferred of the current line, so as to transfer load of the current line; step 3, and transferring the load of the current line according to magnitudes of the transferable load quantity of other lines and the load quantity to be transferred of the current line, wherein a transfer equation is that x is equal to beta*Y / (1+alpha)<n>, x is the load quantity transferred to the other lines, Y is the transferable load quantity of the other lines, beta is an adjusting factor, alpha is a power supply margin of the other lines, and n is the year limit of a reserved margin of the other lines.