87results about How to "Avoid repeated switching" patented technology

Disclosed is a touch screen mobile terminal and a short message display method thereof. The method includes steps that a user implements touch operations to a contact list window to request for browsing a contact list, the contact list window displays user request data in full screen, and a short message window is hidden; the user implements touch operations to the contact list window to request for obtaining short message data of a target contact, the short message window is activated and popped to enable a short message interface to be in a split screen display state, and the user request data is displayed in the short message window; the user implements touch screens to the short message window to request for checking or editing short message data of the target contact, a short message contact list of the target contact is displayed in the short message window, and a short message editing box pointing at the target contact is provided. By the touch screen mobile terminal and the short message display method thereof, the user can check or edit short message folder content of different contacts under a short message interface without repeated operations, so that operation time is saved, repeated switching of operating interfaces is avoided, and short message display processes are simplified.

The invention relates to an MR (Mediated Reality)-based surgical navigation system, equipment and method as well as a storage medium. A coordinate origin data set of a corresponding lesion is acquiredthrough a probe unit and a camera unit to obtain a three-dimensional image coordinate model, and then physical coordinate information and eye calibration information corresponding to an MR projectionunit are acquired, so that the MR projection unit displays three-dimensional image information which is superimposed with the lesion of a patient in a real scene and registered in real time. The location of the lesion, an operation plan and the like can be displayed in an operation area in real time during the operation process, so that the sight and the area of concern of a surgeon are concentrated on the operation area, the repeated switching between the operation area and a navigation computer display is avoided, the reliability of operation and the accuracy of navigation are improved effectively, the tedious step for frequent change of an operation tool to a navigation probe by the surgeon in the traditional navigation during operation is avoided, the continuity of the operation is improved, and the operation time is shortened.

The invention discloses a controlling method of a bridge type inverter and a controlling device. The controlling method comprises the following steps of sampling an input voltage Vp of the bridge type inverter, generating a corresponding mode selection signal according to a current operation mode of the bridge type inverter, the input voltage Vp, a presupposed switching point voltage Vs as well as a presupposed switching hysteresis difference deltaV, and outputting a corresponding driving control signal to a control end of the bridge type inverter according to a mode selecting signal; and controlling an operation mode or an operation state of the bridge type inverter, wherein the operation mode of the bridge type inverter comprises a full bridge mode and a half bridge mode. The controlling method and the controlling device provided by the invention have the advantages that an input range of the bridge type inverter can achieve the input range of a two-stage converter, the free switch of the half bridge and the full bridge is realized, components are saved, the cost is reduced, the efficiency is improved, and in addition, repeated mode switch is prevented at the critical point during mode switching, and the relative stability operation of the circuit is guaranteed.

The invention discloses an intelligent vehicle steering control system and method based on piecewise affine layered control. Through piecewise affine description of tire nonlinear force, a lateral dynamics PWA model is established, and then different control modes are switched under different vehicle speeds according to the model to achieve accurate steering. According to the intelligent vehicle steering control system and method, a piecewise affine method is adopted to describe the non-linear characteristic of wheel force, and then the vehicle lateral dynamics PWA model is established. Basedon the dynamic model, different control methods are selected under different vehicle speeds and working conditions. Fuzzy speed boundary, divergent switching delay and dynamic performance index are mainly considered in decision-making to improve control accuracy. In addition, a vehicle body stabilization module is additionally arranged at the position of a traditional execution module to detect the center of mass sideslip angle and yaw rate, and soft constraints of the center of mass sideslip angle are put forward according to different working conditions, corresponding yaw moments are appliedto keep the center of mass sideslip angle and yaw rate stable, and thus the vehicle stability is improved.

The invention discloses a working size switching circuit for power transistors in a DC-DC converter, mainly solving the problem of difficulty in reaching high efficiency by the traditional DC-DC converter when in a low load state. The working size switching circuit comprises a pulse width modulation (PWM) comparing module, a first drive module, a first pair of power MOS (Metal Oxide Semiconductor) transistors, a hysteresis comparing module, a second drive module and a second pair of power MOS transistors, wherein the PWM comparing module controls the first pair of power MOS transistors to work through the first drive module; the hysteresis comparing module compares a load current with a switching threshold current to generate a judging signal and controls that the second pair of power MOS transistors does not work when the load current is lower than the switching threshold current through the second drive module and the second pair of power MOS transistors works when the load current is more than the switching threshold current, so that actually working power transistors of the DC-DC converter are different in quantity under same load conditions, and the working size of the power transistors are switched. According to the working size switching circuit, the efficiency of the DC-DC converter when in the light load state can be increased, and load currents corresponding to the switching of the working sizes of the power transistors are constant under various working duty ratios.

The invention relates to a transmission unit comprising a planetary gear set which comprises a plurality of gear elements and is designed as a pump, which brings about delivery of hydraulic fluid from a suction chamber to a pressure chamber of a pump housing containing the planetary gear set by means of the gear elements. A controllable throttle device is provided for selectively throttling a fluid flow delivered between the suction chamber and the pressure chamber, and for thereby braking the gear elements of the planetary gear set relative to each other. A fluid tank is disposed in an intermediate space of the pump housing formed between a plurality of gear elements of the planetary gear set and can be connected to the suction chamber and the pressure chamber simultaneously by means of the throttle device.

The invention provides a pulse width modulation method, a pulse width modulation system, and a controller. Thus, a three-phase inverter can select a modulation mode according to modulation parameters,a harmonic standard requirement is met while the normal operation of the three-phase inverter is ensured, and the stability of a three-phase inverter system is improved. The method in the embodimentcomprises steps: modulation parameters of the three-phase inverter are acquired, wherein the modulation parameters of the three-phase inverter comprise a degree of modulation and an operating parameter of the inverter, and the operating parameter is used for indicating the operating state of the three-phase inverter; when the modulation parameters meet a continuous pulse width modulation (CPWM) condition, CPWM is selected as the modulation mode of the three-phase inverter; when the modulation parameters meet a discontinuous pulse width modulation (DPWM) condition, DPWM is selected as the modulation mode of the three-phase inverter; and when the modulation parameters do not meet the CPWM condition or do not meet the DPWM condition, the modulation mode of the three-phase inverter during theprevious control period is selected as the modulation mode during the current control period.

The invention discloses a control method and a control device of an intelligent power module. The control method comprises the following steps: obtaining the temperature of an intelligent power module at current moment; determining the temperature change trend of the intelligent power module according to the temperature at current moment and the temperature at previous moment; regulating the temperature of the intelligent power module according to the temperature change trend; and controlling the connection and disconnection of the intelligent power module according to the temperature of the intelligent power module. The temperature is regulated in real time according to the temperature change trend of the intelligent power module, so as to control the connection or disconnection of the intelligent power module, and automatic disconnection of the intelligent power module at excessively high temperature is prevented. The problem of repeated start and shutdown of the intelligent power module is solved, and the operation stability of the intelligent power module is improved.

The invention belongs to the technical field of household cleaning, and relates to a control method and device for cleaning equipment, an electric appliance, electronic equipment and a storage medium;The control method of the cleaning equipment comprises the steps that: the working state of the cleaning equipment is acquired; a first actual humidity value of a cleaning part of the cleaning equipment is detected according to the fact that the working state of the cleaning equipment is a standby state; the first actual humidity value is compared with a target humidity value; and water is supplemented to the cleaning part according to the fact that the first actual humidity value is smaller than the target humidity value. According to the control method of the cleaning equipment, the tediousprocess that a user disassembles the cleaning piece for soaking is avoided, and the time needed by cleaning of the user is shortened; the water consumption can be controlled during water replenishing, so that the waste of water resources is avoided; and repeated switching of the cleaning part between complete drying and hardening and wetting and softening is avoided, the service life of the cleaning part is prolonged, and the cleaning cost of the user is reduced.

The invention relates to a network connection method and device, and in the technical scheme, network distribution equipment and equipment to be subjected to network distribution are connected with anetwork in a second wireless connection mode. And after the to-be-distributed network equipment fails to distribute the network by adopting the second wireless connection mode, the distribution network equipment interacts with the to-be-distributed network equipment by adopting the first wireless connection mode and sends the distribution network information, so that the to-be-distributed networkequipment can perform network connection again by using the distribution network information. Thus, in the network distribution process, the equipment to be subjected to network distribution is prevented from being repeatedly switched between the router and the network distribution equipment in the second wireless connection mode, and the network connection success rate is improved. In addition, the distribution network equipment can still use the second wireless connection mode to connect the network without influencing the use of the network.

The invention discloses a quick heavy-route method and node. The method comprises following steps: A, node receives port down interruption or topotactic transformation information, then judges if fault port lies in main label exchange path LSP, if so, then performs B; B, judges if present node is header node, if so, then performs quick heavy-route switching and switches service traffic flow from main LSP to protected LSP, or, sends port down topotactic transformation information to other direct connection node main LSP can reaches, the other direct connection node performs step A after receiving port down topotactic transformation information. The invention can promote quick heavy-route switching speed without increasing hardware cost, guarantees network stability and is not limited by middle node number.

The invention discloses an automatic assembly welding clamp for axle housing flanges, belongs to the technical field of axle clamp equipment, and aims to solve the problems that in the prior art, a clamp is single in structure and cannot adapt to fixation of a plurality of parts on the same equipment, and an axle housing assembly cannot be overturned. The automatic assembly welding clamp for the axle housing flanges comprises an overturning device and a clamping device, wherein the overturning device comprises a large overturning structure, as well as a driving end chuck device and a driven end chuck device which are connected to the two ends of the large overturning structure respectively; the clamping device comprises a first flange plate positioning device and a second flange plate positioning device which clamp the two ends of an axle housing respectively; an axle housing smoothening device is arranged between the first flange plate positioning device and the second flange plate positioning device; and a lifting positioning assembly matched with the axle housing smoothening device for clamping is further arranged on the side face of a mounting plate, so that workpieces of different sizes are fixed, and the problem that the workpieces of different sizes are not matched is avoided.

Provided are an infrared control device and method, and a camera. The infrared control device of the present invention comprises: a light intensity counting module, a sliding filtering module, a window comparison module, an energy analysis module and a control module, wherein the light intensity counting module counts an average sensed light intensity according to imaging data; the sliding filtering module filters the average sensed light intensity; the window comparison module compares the average sensed light intensity to an open threshold value, and if the average sensed light intensity is greater than the open threshold, a first control signal is output; the energy analysis module conducts an energy analysis according to the imaging data so as to judge the state of an infrared lamp, if the infrared lamp is turned on, a second control signal is sent, and if the infrared lamp is turned off, a third control signal is sent; and the control module controls the infrared filter to be turned off according to the first control signal and the second control signal, and controls the infrared filter to be turned on according to the first control signal and the third control signal. The embodiments of the present invention can improve the imaging stability of a camera.

The embodiment of the invention discloses a series compensation circuit, system and method for a power distribution network. The circuit comprises a main line, an electricity utilization circuit, a capacitor bank and a control circuit, wherein the electricity utilization circuit is connected with the main line, the capacitor bank is connected with the electricity utilization circuit in parallel, and the control circuit is connected with the main line and the capacitor bank. The capacitor bank comprises at least one capacitor and at least one breaker and further comprises at least two parallel branches including the first branch and the second branch, wherein the first breaker and the first capacitor are sequentially arranged on the first branch, and the second capacitor is arranged on the second branch. The on-off of the capacitors on the branches in the capacitor bank is controlled, so that the on-off of part of the capacitors is achieved; a capacitance gradient with different levels is added to the circuit, so that line voltage regulation is smoother, and series compensation for the power distribution network is facilitated.

The invention provides an automatic voltage control method based on active power trend judgment, and belongs to the technical field of automatic voltage control of a power system. The method comprises the following steps: obtaining a day-ahead power flow forecast result, and calculating active power values of all transformer substations at all moments in the whole day through active power values of all main transformer high-voltage side windings at all moments in the next day; then, according to the all-day active power change trend of each transformer substation, establishing a priority action time period set of the transformer substation in the next day; and when the automatic voltage control cycle of the next day arrives, if the current moment belongs to the priority action time period set under the condition that the voltage of the transformer substation does not exceed the limit, formulating an optimization strategy for switching the discrete reactive power equipment by the transformer substation according to the load change condition of the time period. The method realizes the prevention and control of the voltage of the transformer substation, avoids the repeated switching of discrete reactive power equipment in the transformer substation in a rapid load change period, reduces the fluctuation amplitude of the voltage, and improves the voltage stability and voltage quality of a power grid.

The embodiment of the invention belongs to the technical field of communication and discloses an intermediate node, a cascade protection system and a cascade protection method. The intermediate node is connected with a first node through a first working channel and a first protection channel, and connected with a second node through a second working channel and a second protection channel. The cascade protection system comprises a receiving unit and a processing unit, wherein the receiving unit is used for receiving and then outputting a first signal of the first working channel and a second signal of the first protection channel, and receiving and then outputting a first monitoring message corresponding to the first signal and a second monitoring message corresponding to the second signal; the processing unit is used for judging whether the first signal and the second signal are normal according to the first monitoring message and the second monitoring message output by the receiving unit; and if the first signal and the second signal are judged to be normal, the first signal is output to the second working channel, and the second signal is output to the second protection channel. The intermediate node, the cascade protection system and the cascade protection method can shorten the switching time of services during a single-point fault.

The invention discloses a hot backup method of a VTS multi-sensor information comprehensive processing system. The method comprises the following steps: step one, synchronizing clock; step two, establishing an information corresponding table; step three, establishing a chained topology list; step four, determining a working machine; step five, synchronizing data; step six, switching fault; and step seven, after the equipment fault is recovered, repeating steps three to six, establishing a new chained topology list, and repeatedly and circularly executing to realize automatic monitoring switching of a backup machine. The hot backup of the multi-sensor information comprehensive server is realized, and a reliability requirement on a heartbeat link by the hot backup, the flexibility and uniqueness of the automatic switching of the working machine and the backup machine are comprehensively considered, a closed-loop synchronization mechanism is designed according to a data integrity requirement on the VTS multi-sensor information comprehensive processing, and the high reliability and stability of a VTS system are well guaranteed by adopting a way of taking starting time as unique arbitration decision for the working machine.

The invention provides a network topology display method and a network topology display device. The network topology display method comprises the following steps: acquiring a network topology structure of network topology; confirming the connection grade and the connection relationship of different pieces of network equipment in the network topology according to the network topology structure; expressing the connection grade and the connection relationship of the network equipment in a command line manner, thereby forming network topology command files. According to the network topology display method and the network topology display device, the network topology structure can be displayed through the command lines and can be conveniently checked by development operators in the development process, the time waste caused by the fact that the network topology needs to be browsed in a browser or client software is avoided, and the checking efficiency is improved.