51results about How to "Switch frequently" patented technology

The invention discloses a virtualization based power and function isolating method for a loading module of a monolithic kernel operation system. The virtualization based power and function isolating method includes steps that a page table for the loading module and a page table for a monolithic kernel are generated in a kernel space of a virtual memory when the system is initialized; the operation system falling into a monitor of a virtual machine sets attributes of the two page tables and returns in the process of loading the loading module; when the loading module applies for a dynamic memory, the operation system falling into the monitor of the virtual machine updates the two page tables and returns; when the loading module directly calls and skips to code pages of the kernel module or directly rectifies data pages of the kernel module, the operation system falling into the monitor of the virtual machine switches the page tables and returns after checking and processing the page tables. By the aid of the monitoring mechanism of the monitor of the virtual machine, an executive body of the system is marked by page directory address register, and power and function of the kernel are isolated. Frequent interference during switching of a kernel mode and a user mode is avoided, and integral performance of system is improved.

The invention relates to the technical field of street lamps, in particular to an environment adaptive energy-saving street lamp. The invention provides an energy-saving street lamp which can automatically switch illumination intensity according to noise condition produced by movement of pedestrians and vehicles in the lighting area of the street lamp. The environment adaptive energy-saving street lamp mainly comprises four curing modules, namely a power supply module (CM1), an environment light detection module (CM2), an environment noise detection module (CM3), a delay correction module (CM4), one relay (J) and less periphery components. By adopting the environment adaptive energy-saving street lamp provided by the invention, the street lamp can be automatically controlled to be turned on or off according to ambient brightness in the lighting area of the street lamp, and the illumination intensity can be automatically switched according to the noise condition produced by the movement of the pedestrians and vehicles, thus the safe and convenient requirement of the pedestrians and vehicles is not influenced while the aim of saving energy is achieved.

The invention provides a mobile terminal application switching method. The method comprises the steps of S1, displaying an application icon in a state bar when an application starts to be used; S2, obtaining operation data on a touch screen; S3, judging whether operation is click operation of a clickable region in a preset state bar or not, and when a judgment result is yes, entering the next step, or otherwise, ending the process; S4, judging whether a preset application icon that can be clicked to be accessed exists in the state bar or not, and if the preset application icon exists, entering the step S5, or otherwise, ending the process; and S5, according to a preset algorithm, selecting an application corresponding to one application icon that can be clicked to be accessed in the state bar. Correspondingly, the invention furthermore provides a mobile terminal application switching system which realizes the method. A user can enter one application only by clicking the clickable region of the state bar, so that the problem of incapability of accurately clicking the application icon due to a relatively small mobile terminal screen is solved.

The embodiments of the invention disclose a method and a device for balancing a network load, which relate to the technical field of communications and are used for solving the problem that the resource of a sharing frequency point having lower power in two sharing frequency points configured in a sharing base station is wasted. The method comprises the steps of: the sharing base station monitoring the first load difference between a first cell covered by a first sharing frequency point and a second cell covered by a second sharing frequency point; and when the first load difference is greater than a first preset threshold, the sharing base station broadcasting a first system message on the first sharing frequency point, wherein the first system message comprises information for expressing that the priority of the second cell is higher than that of the first cell, a high-priority cell reselection condition and a first start pilot frequency switching condition, the high-priority cell reselection condition indicates that the cell selection signal receiving level value of the second cell is greater than the difference between a first default value and a first bias value, and the first start pilot frequency switching condition indicates that the signal intensity of the second cell is greater than the difference between a second default value and a second bias value.

The invention relates to a nitrogen making system for a ship. The nitrogen making system comprises a compressor, a nitrogen making machine and / or a nitrogen buffer tank as well as a flow pressure regulating device which are sequentially connected through pipelines, wherein the compressor comprises at least one compression unit and is used for providing compressed air; the nitrogen making machine comprises at least two nitrogen making units and is used for making nitrogen; the nitrogen buffer tank is used for storing and buffering the nitrogen; the flow pressure regulating device is used for regulating flow and pressure. Compared with a conventional nitrogen making system, the nitrogen making system is not equipped with an air dryer, an air buffer tank or a nitrogen buffer tank and can output the small-flow and high-pressure nitrogen, and the pressure of the nitrogen is higher than the highest output pressure of an air compressor. With the adoption of the means, the structure of the nitrogen making system in the prior art is simplified, device operation and nitrogen yield cannot be influenced, and device investment and energy are saved.

The invention relates to the technical field of unmanned aerial vehicle remote control equipment, and discloses an unmanned aerial vehicle remote controller comprising a shell and a host computer arranged on the inner side of the shell. The host computer is provided with a first set of control parts which are used for making the unmanned aerial vehicle execute operation. The shell is provided witha second set of control parts which are used for making the pan-tilt equipped with the camera execute operation. The unmanned aerial vehicle remote controller is applied to perform unmanned aerial vehicle operation so as to be simpler and quicker and simplify the disassembly process and bring better product experience to the user.

The invention discloses a passenger compartment priority refrigeration control method for a pure electric vehicle heat management system. The method is characterized by comprising the following steps:1) entering a simultaneous refrigeration mode, and starting an electric refrigeration system and a battery cooling water loop; 2) entering a passenger compartment priority refrigeration mode, and closing the battery cooling water loop; 3) keeping entering the passenger compartment priority refrigeration mode; 4) quitting the simultaneous refrigeration mode, and restarting the battery cooling water loop; 5) keeping quitting the simultaneous refrigeration mode; and 6) repeatedly circulating step 2) and step 4) until the simultaneous refrigeration mode is quitted. On the premise that the safetyof the power battery is guaranteed, the refrigeration requirement of the passenger compartment is preferentially guaranteed; and the system is frequently switched, so the running stability of the system is guaranteed.

The invention provides an antenna switching method, an antenna switching device, a computer readable storage medium and an electronic device, and belongs to the technical field of computers and communication. The method is applied to the electronic device with at least two antennas, and comprises the following steps: acquiring the received signal strength of a currently used first antenna, and acquiring the received signal strength of an idle second antenna; if the number of times of current antenna switching exceeds a preset number of times, judging a magnitude relation between a difference value obtained by subtracting the received signal strength of the first antenna from the received signal strength of the second antenna and a first threshold value; when it is judged that the difference value is larger than the first threshold value, switching the currently used antenna into the second antenna; and when it is judged that the difference value is smaller than the first threshold value, keeping the currently used antenna as the first antenna. The antenna switching effectiveness can be improved, and the problem of frequent switching is solved.

The invention discloses an antenna switching triggering control method, a communication terminal and a computer memory medium. According to the method, a communication parameter for representing performance of at least one antenna of a current main antenna and auxiliary antenna in a communication terminal is monitored; when it is determined that a change value of the communication parameter withina preset time period is greater than or equal to a corresponding preset communication parameter threshold, antenna switching is controlled to be triggered. The problem that in the prior art, connection is lost or a call is dropped due to the fact that working roles of the main antenna and the auxiliary antenna are fixed, and when the main antenna is interfered or the performance is relatively low, the working role of the main antenna cannot be switched is solved. The invention also discloses a communication terminal and a computer memory medium. Through application of the scheme, when the main antenna is interfered or the performance is relatively low, the antenna switching can be triggered on the basis of the monitored change condition of the current performance of the antenna, the condition that the connection is lost or the call is dropped due to the deterioration of the performance of the antenna can be avoided, and the user experience is improved.

The invention discloses an Ethernet ring protection switching method and system, and a node. The method comprises the steps that a master node acquires a farthest node that can be seen by the master node; the master node separately determines a minimum of port rated rates of all nodes in a path from a master port of the master node to the farthest node and a minimum of port rated rates of all nodes in a path from a standby port of the master node to the farthest node; and if the minimum of port rated rates of all nodes in the path from the master port of the master node to the farthest node isless than the minimum of port rated rates of all nodes in the path from the standby port of the master node to the farthest node, the master port and the standby port are reversed. According to the method, whether the master port and the standby port need to be switched can be determined by comparing the minimum of port rated rates of all nodes in the path from the master port of the master nodeto the farthest node with the minimum of port rated rates of all nodes in the path from the standby port of the master node to the farthest node, so that a standby link is switched to a low-bandwidthlink adaptively, and the bandwidth use ratio of the Ethernet right is improved.

The invention discloses a coordinate switching method for waveform drawing. The method comprises the following steps of segmenting waveforms displayed by a respirator according to each respiration period; obtaining an extreme value of waveform data of each respiration period; when the extreme values of the waveform data of a preset number of continuous respiration periods exceed a preset coordinate range switching interval, controlling a current coordinate range to be switched to a first coordinate range; when the extreme values of the waveform data of a preset number of continuous respiration periods are in the preset coordinate range switching interval, controlling the current coordinate range to be switched to a second coordinate range, wherein the second coordinate range is smaller than the first coordinate range. According to the coordinate switching method, frequent coordinate switching during the jittering of the waveform data on the edges of the coordinate ranges can be avoided, and meanwhile, the amplitude of the waveforms in coordinates is also limited, so that waveform drawing is optimized, good presentation effects are ensured, and attractive visual effects are achieved.

The invention discloses a PDMS / SiC functional gradient substrate and a preparation method and an application thereof. PDMS in the substrate is a matrix material and SiC is a reinforcing phase; the SiCcontent is in gradient increasing from the outside of the substrate to the inside of the substrate, and the minimum value of SiC content on the outside of the substrate is 0-5%, the maximum value ofthe SiC content in the substrate is 45-55%, -55%, wherein the inner side of the substrate is one side used for being inserted into an electronic component and a connecting circuit. The rigidity of thesubstrate gradually increases from the outer surface to the inner surface, and the flexibility gradually decreases. Namely, the good flexibility on the outer surface of the substrate ensures that thesurface has very good conformability and stretchable / bendable characteristics to meet the requirements of actual working environment and use conditions; however, one side of the inner surface of thesubstrate has higher rigidity, so as to avoid the damage of the electronic component and the connecting circuit caused by excessive deformation when placing the electronic component and printing the connecting circuit (the excessive deformation is limited by improving rigidity constraint), and the stable electrical performance of the electronic component is ensured.

The invention discloses an electric quantity display circuit of an electric vehicle. The electric quantity display circuit comprises a circuit interface which is connected with a power supply of the electric vehicle, wherein the electric interface is connected with a voltage stabilizer, the circuit interface is connected with a high-voltage display circuit, a medium-voltage display circuit, a low-voltage display circuit and an under-voltage display circuit in parallel, the high-voltage display circuit is internally connected with a high-voltage protection resistor and a high-voltage indicator element in series, the medium-voltage display circuit is internally connected with a medium-voltage protection resistor and a medium-voltage indicator element in series, the low-voltage display circuit is internally connected with a low-voltage protection resistor and a low-voltage indicator element in series, and the under-voltage display circuit is internally connected with an under-voltage protection resistor and an under-voltage indicator element in series; the high-voltage display circuit, the medium-voltage display circuit, the low-voltage display circuit and the under-voltage display circuit are respectively connected with an anti-vibration module which mainly consists of a voltage comparator. The electric quantity display circuit is simple in connection, the electric quantity can be displayed in a segmenting manner, and the frequent switching of two adjacent display sections can be prevented.

The invention relates to the field of electrical control, in particular to an improved equalization control method for multiple energy storage units of a direct-current microgrid. The improved equalization control method comprises the following steps of: constructing an equalization control circuit of the multiple energy storage units of the direct-current microgrid, constructing a monotonically increasing function according to self charge state parameters, and introducing the monotonically increasing function into an energy storage unit improved droop control loop, so as to form a reference voltage of the control system; and enabling the reference voltage, the sampled output voltage and the sampled input current to form a double-closed-loop control system, outputting a duty ratio controlsignal by a digital controller to drive a switching power device, and realizing communication-free self-adaptive droop control of an energy storage unit. According to the improved equalization controlmethod, an algorithm is applied to two working modes of charging and discharging of the energy storage unit, switching is not needed, output current of the interface converter does not need to be sampled, and the design of the controller is simplified.

The invention provides a video playing control method, a video playing control system, an intelligent terminal and a computer readable storage medium. The video playing control method comprises the steps of: S100, receiving a sliding-contact operation or a point-contact operation performed on a display module when playing a video in the display module of the intelligent terminal; S200, verifying sliding-contact trajectories of the sliding-contact operation or the sliding-contact; S300, identifying a sliding-contact direction from a starting point to an end point of the sliding-contact trajectory when the sliding-contact trajectories are two or more, or identifying operating positions of operating points on the display module when the operating points are two or more and operating frequencies within a preset period are two or more; S400, and adjusting a playing multiplied speed of the video according to the sliding-contact direction or the operating positions. After adopting the video playing control method, the video playing control system, the intelligent terminal and the computer readable storage medium, the problem of deep multiplied speed playing adjustment entrance during video playing is solved, and the user can adjust the playing multiplied speed at any time by means of simple gestures.

The invention discloses a polygonal multi-welding-surface ultrasonic metal tool head. The polygonal multi-welding-surface ultrasonic metal tool head comprises a welding head body, a connecting hole, awelding end and welding teeth, wherein the connecting hole is formed in one end of the welding head body; the welding end is arranged on the other end of the welding head body, and the welding end isarranged around the welding head body and protrudes out of the welding head body; the welding teeth are arranged on the side face of the welding end; the length of the welding head body is half wavelength or full wavelength; and the cross section of the welding end is a positive hexagon, a regular octagon, a regular decagon or a regular dodecagon. The polygonal multi-welding-surface ultrasonic metal tool head is provided with a plurality of welding surfaces which can be sequentially used, so that the service life of the metal tool head is effectively prolonged, the cost saving and resource utilization are all optimized, and the working efficiency is improved.

The invention discloses a ray spacer. The ray spacer comprises a movable shielding part for shielding a ray outlet of an external ray source, and a power part for driving the shielding part to move to generate sheltering or sheltering removal of rays. The ray spacer further comprises a shielding box body covering the ray outlet and the shielding part. The shielding box body is provided with a light-out groove communicated with the ray outlet. The rays of the external ray source are output through the ray outlet, the shielding part installed on the ray outlet can be driven by the power part to shelter the ray outlet, therefore, output of the rays can be sheltered, when the rays are needed, the power part can drive the shielding part to be moved away from the ray outlet, and therefore the rays are output. Thus, harm of ray radiation to users and other organisms can be reduced, the shielding box body covering the ray outlet and the shielding part further shields the ray radiation, and the rays can be output through the light-out groove.

The invention provides a wet towel type fire escape device which comprises a sealed packaging bag and a wet towel arranged in the packaging bag. The wet towel comprises a towel body used for coveringthe nose or covering both the nose and the mouth and a neck hanging chain rope used for hanging the towel body to the neck of a user. The wet towel type fire escape device is compact in structure, small in occupied space and convenient and safe to use.

The invention relates to a method for controlling a driven manual or automatic gearbox with a speed regulator pertaining to a vehicle traveling uphill, said method consisting in: regulating the speed to a nominal value set by the driver of the vehicle; acquiring the immediate values of the speed and the engine torque; estimating the resistive efforts based on values of speed and engine RPM; calculating, on the basis of the estimation of the resistive efforts and the maximum torque of the heat engine, the maximum vehicle acceleration possible in the gearbox gear ratio above the one that is engaged; and activating, or not, a vehicle speed limiting function (BVV) at a speed set value corresponding to the maximum speed for the heat engine according to whether the maximum acceleration possible in the higher gear ratio is negative or positive, respectively.

A switching method for equalizing the traffic load in mobile communication system is disclosed. A static traffic load warning line A', a dynamic warningline A and buffer line P are set up in each small region in system. When local traffic load is higher, the mobile station is switched from the small region with higher traffic load to the one with lower traffic load while the A' is relatively regulated to switch excess load out. Its advantages are high switching efficiency and stability.

Methods and systems are provided for integrating a bi-fuel engine with a CVT transmission. Responsive to a driver demand, a controller may determine whether to maintain usage of a current fuel or transition to an alternate fuel based on the cost efficiency of the transition and further based on any engine limitations that may be incurred at the engine speed-load following the transition. To improve the net fuel economy benefit while addressing the engine limitation, a fuel transition may be combined with a CVT adjusted engine speed-load regime, while maintaining engine power output.

The invention provides a vehicle-mounted high-definition map data source selection method and device, the method is combined with a reinforcement learning method to construct an asynchronous data source selection framework, the framework is divided into an offline training part and an online selection part, the offline part is responsible for training a neural network model by using a deep reinforcement learning algorithm, and the online selection part is responsible for training a neural network model by using a deep reinforcement learning algorithm; meanwhile, the online part uses neural network parameters synchronized from the offline part to select data sources, and parallel execution of data source selection, experience track collection and model training is achieved. According to the invention, the problem of reduced throughput in the data source transmission process can be avoided, frequent data source switching is avoided, and the optimal vehicle-mounted high-definition map data source is effectively selected.

The invention discloses a rapidly index and list inputting method for code in Chinese programming which comprises: installing user programming software that is related to programming language and starts simultaneously with the programming language. The method is characterized in that: presetting input method, receiving input from keyboard; displaying, indexing and reducing on inputted code; verifying completion by mouse and / or keyboard and automatically changing name and adding variables, constants and subroutines.

The embodiment of the invention discloses a voice excitation control method, wherein the method comprises the steps: sampling the voice of each client in a preset sampling period at a preset samplingrate, and taking the mean value of the volumes of all sampling points in a sampling period as the volume reference value of the corresponding client in the sampling period; taking the client corresponding to the maximum value of the volume reference values in the sampling period as a volume representation terminal of the sampling period; taking a continuous threshold number of sampling periods asan acquisition period, and calculating the number of times that each client in the acquisition period serves as the volume representative terminal; and taking the client with the highest frequency asa current voice excitation terminal. According to the method, it is guaranteed that a speaker cannot be frequently switched due to sudden sound, it is guaranteed that in the scene of a network conference, the speaker and a main screen image are kept consistent, and the purpose of consistent audio signals is achieved.