45results about How to "Avoid out-of-control problems" patented technology

The invention discloses a communication control method and apparatus for an unmanned aerial vehicle. The method comprises the steps of: detecting whether network parameters corresponding to a current network meet preset conditions; when the network parameters meet the preset conditions, generating a network switching request of a communication network; sending the network switching request to a control terminal; and if receiving a switching confirmation instruction returned by the control terminal in a preset time period, according to the switching confirmation instruction, switching the current network into a target network. Namely, when the unmanned aerial vehicle detects that the current network is interfered, the unmanned aerial vehicle generates the communication network switching request and fulfills the communication network switching aim by communication with the control terminal, so that the problem that the unmanned aerial vehicle is out of control due to interference to the communication network can be avoided, thereby improving control stability and safety of the unmanned aerial vehicle.

The invention relates to a control method and device of an autonomous vehicle and a vehicle and relates to the technical field of vehicle control. The control method of the autonomous vehicle comprises the steps of obtaining a state of an automatic driving component of the vehicle at a current time, wherein the automatic driving component comprises an automatic driving controller and a sensor group; if the state of the automatic driving controller is abnormal and the state of the sensor group is normal, controlling the vehicle to run to a target lane and to be parked according to environment information collected by the sensor group, wherein the target lane is a lane, close to the roadside, of a road where the current lane belongs; and if the state of the sensor group is abnormal, controlling the vehicle to be parked in the current lane. The problem that the vehicle is out of control as the automatic driving of the vehicle fails to work and a driver cannot take over the vehicle in timecan be solved, and the vehicle running safety degree can be enhanced.

The invention provides an unmanned aerial vehicle using distributed ducted power and capable of short-distance take-off and landing and relates to the technical field of unmanned aerial vehicles. Theunmanned aerial vehicle has two fuselages. A front wing connects and traverses the fronts of the two fuselages, and a rear wing connects and traverses the tail portions of the two fuselages. Verticaltail wings are respectively installed directly above the tail portions of the two fuselages. An oil-electricity hybrid power scheme is adopted to prolong endurance of the unmanned aerial vehicle, andreduce weight, vibration and the oil consumption rate of a power system. Ducted power assemblies distributed on the upper surfaces of trailing edge flaps of the wings suction boundary layer airflow onthe upper surfaces of the wings so as to increase the aerodynamic efficiency of the wings. Distributed arrangement of the power system avoids a problem that malfunction of one engine causes a runawayunmanned aerial vehicle, thus improving safety of the unmanned aerial vehicle. The trailing edge flaps drive the ducted power assemblies to deflect so as to change a thrust direction, thus shorteningsliding distances in take-off and landing stages of the unmanned aerial vehicle, improving take-off and landing performance of the unmanned aerial vehicle, and expanding the application range of theunmanned aerial vehicle.

The invention provides a data transmission method and a data transmission device and is used for carrying out data transmission between a first device and a second device. First communication connection and second communication connection are established between the first device and the second device through different communication modules. The data transmission method comprises the steps of judging whether to-be-transmitted data is the data of a first type or the data of a second type when any one of the first device and the second device needs to transmit the data to the other device; transmitting the to-be-transmitted data to the other device through the first communication connection when the to-be-transmitted data is judged to be the data of the first type; and transmitting the to-be-transmitted data to the other device through the second communication connection when the to-be-transmitted data is judged to be the data of the second type. According to the technical scheme of the invention, the problem of influencing data transmission due to the fact that a data packet is large when all data is packaged together to be sent can be avoided, and moreover, the problem that the device is out of control due to the fact that important data is lost can be avoided.

The invention provides a lightness variable backlight module and method of controlling the lightness. The lightness variable backlight module comprises certain voltage / certain current switching driver, switch, at least one light-emitting diode, a sensing resistance and controller. The certain voltage / certain current switching driver is connected with the switch, at least one light-emitting diode, sensing resistance in series and the sensing resistance also is electrically connected with the certain voltage / certain current switching driver and the controller synchronously controls the switch between the certain voltage drive and certain current drive of the certain voltage / certain current switching driver and the open and the close of switch. When the controller opens the switch, the certain voltage drive is used; when the controller closes the switch, the certain current is used.

The present invention provides a self-inspection method and a self-inspection system for a cooking appliance. The cooking appliance is provided with a communication module that interacts with a terminal, and the communication module can control the The cooking appliance is working, and the self-checking method includes: after the communication module enters the working state, detects whether the monitoring instruction sent by the cooking appliance is received; if the communication module does not receive the monitoring instruction within the set time If the monitoring instruction is sent by the cooking appliance, it is determined that the communication link with the cooking appliance is faulty. The technical solution of the present invention can automatically detect whether there is an abnormality in the communication link between the cooking utensil and the communication module, avoiding the failure to detect whether there is a problem in the communication link between the cooking utensil and the communication module and continue to control the communication through the terminal Problems with cooking appliances causing out of control cooking appliances.

The embodiment of the invention provides a game operation method, device and equipment. The method comprises the steps of obtaining the position of a virtual vehicle in a game track in a steering region; determining the recommended steering angle according to the position; displaying an indication icon corresponding to the recommended steering angle in the preset range for presetting a steering control in a graphical user interface, wherein the indication icon is used for indicating the target running direction of the virtual vehicle. The accuracy of controlling the virtual vehicle steering bya user is improved; further, the user experience of the virtual vehicle racing game is further improved.

The invention provides a method for forming air gaps among copper interconnection lines. The method for forming the air gaps among the copper interconnection lines comprises the steps of providing a semiconductor device substrate; depositing a seed crystal layer which can be subjected to dry etching on the surface of the semiconductor device substrate; depositing a hard amorphous carbon mask layer on the surface of the seed crystal layer; patterning the hard amorphous carbon mask layer to enable partial seed crystal layer surface to be exposed; conducting copper electroplating on the exposed seed crystal layer surface and in the hard amorphous carbon mask layer to form the copper interconnection lines; removing the hard amorphous carbon mask layer and the seed crystal layer under a hard amorphous carbon mask layer region through dry etching; depositing a dielectric layer on the copper interconnection lines and accordingly forming the air gaps among the copper interconnection lines. By means of the method for forming the air gaps among the copper interconnection lines, the high requirements of a photo-etching and etching technologies for continuous downscaling of key dimensions can be met, the problem of over etching of the bottoms of the copper interconnection lines, caused by a wet etching process and the problem that the key dimensions cannot be controlled are solved, the controllability of the key dimensions is improved, and the yield of products is improved.

The embodiment of the invention provides a communication method and system based on a video conference. The method is applied to an articulated naturality web. An articulated naturality web server isconnected with a plurality of articulated naturality web terminals for the video conference. The plurality of articulated naturality web terminals comprise an articulated naturality web chairman terminal as a conference chairman and articulated naturality web auxiliary terminals. The articulated naturality web chairman terminal is connected with a master conference control client. The articulatednaturality web auxiliary terminals are connected with auxiliary conference control clients. The method comprises the steps that the articulated naturality web auxiliary terminals receive operation requests of the auxiliary conference control clients; the articulated naturality web auxiliary terminals, as proxies of the articulated naturality web chairman terminal, generate operation instructions according to the operation requests; and the articulated naturality web auxiliary terminals, as the proxies of the articulated naturality web chairman terminal, send the operation instructions to the articulated naturality web server for operation. In the video conference, control operation is dispersed to the articulated naturality web chairman terminal and the articulated naturality web auxiliaryterminals, operation quantity of a single control side is reduced, control operation efficiency is improved, and error probability is reduced.

The present invention relates to the field of the wireless remote control robot technology, especially to a loss of communication control system and method of a wireless remote control robot. The system comprises a remote control unit and a robot unit, the remote control unit includes a remote control master control CPU and a remote control wireless data transmission module, and the robot unit includes a robot master control CPU and a robot wireless data transmission module. The method comprises: arranging the time interval of the remote control unit to send the control signals and the max time interval of the robot unit to receive heartbeat signals, taking the control signals received by the robot unit as heartbeat signals, if receiving new heartbeat signals by using the robot unit in the max time interval of receiving the heartbeat signals, restarting the timing, and or else, stopping all the motion, and recovering the initial state, and restarting to wait for the control signals sent by the remote control. The problem is effectively avoided that the robot is lost contact with and control with a remote control caused by exceeded remote control distance and barrier shielding, etc.

The invention discloses an attitude control parameter self-adaptive adjustment method and device, electronic equipment and a storage medium. The attitude control parameter self-adaptive adjustment method comprises the steps that the engine apparent velocity increment and the flying pressure of a rocket are obtained; the control surface control efficiency of the rocket is calculated by using the engine apparent velocity increment and the flying pressure; and attitude control parameters of the rocket is calculated by using the control surface control efficiency of the rocket. By the adoption ofthe technical scheme, the attitude control parameters can be directly associated with the flight state estimated on the rocket, the matching degree of the attitude control parameters and the real flight state under different launching conditions is improved, and the problem that the rocket is out of control is avoided.

The invention discloses a linear voltage stabilizing circuit, which comprises an MOSFET, a shunt, an MCU detection control circuit and an MOSFET driving control circuit. The input end of the MOSFET isconnected to an input positive electrode, the output end of the MOSFET is connected to the input end of the shunt, and the output end of the shunt is connected to an output positive electrode; the input end of the MCU detection control circuit is connected to the two ends of the shunt to detect voltage parameters at the two ends of the shunt, the output end of the MCU detection control circuit isconnected to the input end of the MOSFET driving control circuit to upload the voltage parameters to the MOSFET driving control circuit, and the input end of the MOSFET driving control circuit is connected with the two ends of the shunt. The MOSFET driving control circuit and the MOSFET are connected with each other so as to drive the working state of the MOSFET. According to the invention, the loss of the MOSFET is associated with a SOA safety zone, the risk of out-of-control under the condition of over-high temperature is reduced, and the power density of the circuit is improved at the sametime.

The embodiment of the invention provides an on-state power taking circuit, an intelligent single-live-wire switch module and an intelligent single-live-wire switch, wherein the on-state power taking circuit comprises a power taking input end, a power taking output end, a first rectification circuit, a second rectification circuit and a comparison circuit. When comparison circuit outputs first level signal, in full cycle of alternating current, a first electricity taking loop is formed between the electricity taking input end and the electricity taking output end through the first rectifying circuit and the second rectifying circuit to take electricity; and when the comparison circuit outputs a second level signal, a second electricity taking loop is formed between the electricity taking input end and the electricity taking output end through the first rectifying circuit to take electricity in the negative half cycle of the alternating current; and in the positive half period of the alternating current, a third electricity taking loop is formed between the electricity taking output end and the electricity taking output end through the second rectifying circuit to take electricity. The on-state power taking circuit can take power at any time, so that the power taking efficiency is improved, and the problem that the intelligent single live wire is out of control is avoided.

The invention discloses a preparation method of a quantum anomalous Hall effect thin-film microstructural device, which comprises the specific steps of uniformly coating electron beam glue on an Al2O3layer of a topological insulator material to serve as a protective layer; uniformly coating an ultraviolet positive photoresist on the protective layer; transferring a pattern of a mask to the ultraviolet positive photoresist by adopting a photoetching process; removing and etching the protective layer of the pattern by adopting a plasma glue removing machine; etching the Al2O3 layer and a Cr-doped (Bi, Sb)2Te3 layer on the topological insulator material by using an ion beam etching machine, and transferring the pattern of the mask to the topological insulator material; washing the remainingprotective layer and ultraviolet positive photoresist by using acetone and isopropanol, and drying to obtain the quantum anomalous Hall effect thin-film microstructural film. The preparation method avoids the corrosion for an Al2O3 thin film in a development stage of the general photoetching process, avoids a problem that the quantum anomalous Hall effect cannot be controlled due to the electron beam exposure charge accumulation, and successfully achieves the quantum anomalous Hall effect after micro-nano processing.

The invention discloses a converter control method applied to a voltage source type converter. The alternating current side of the voltage source type converter is connected with an alternating current system through a converter transformer; and closed loop current control of the converter is realized by collecting a grid-side voltage and a valve-side current. By adoption of the control method provided by the invention, the problems of grid-side sleeve CT saturation of the converter transformer and caused out of control can be avoided, without needing to add new measurement equipment, therebyachieving relatively high economic efficiency.

The invention discloses a novel agent purchase business mode of all kinds of commodities, which obtains the supplied commodity information by integrating the supply resources and provides the commodity information to customers through the agent purchase platform. The customer places an order through the agent purchase platform and sends the order information to the backstage through the agent purchase platform at the same time. The backstage contacts the supplier for goods preparation and the agent delivery personnel to deliver the corresponding goods to the customer. The business model provided by the invention improves the existing e-commerce platform sales model through a technical process optimization and resource integration mode. Because the existing e-commerce sales platform adoptstwo kinds of sales modes, It only provides platform attributes to each supplier, so that suppliers and customers can contact directly, but the biggest drawback of this sales method is that the controlpower of goods source auditing and process control is not strong, especially unable to provide efficient logistics distribution mode, and unable to provide customers with efficient shopping experience.

The invention provides a flux weakening control method of a motor, a flux weakening control device of the motor and a readable storage medium. The flux weakening control method of the motor comprisesthe steps of obtaining a direct-axis instruction voltage, a quadrature-axis instruction voltage and a bus voltage of the motor; based on the fact that the change rate of the bus voltage is larger thana first threshold value, adjusting the bus voltage, and calculating flux weakening current according to the bus voltage, the direct-axis instruction voltage and the quadrature-axis instruction voltage; and performing flux weakening control on the motor according to the flux weakening current. By means of the technical scheme, on one hand, the problem that when the bus voltage is too low, motor energy flows back to the driver, and consequently the voltage of the driver fluctuates violently and even overvoltage is out of control can be effectively solved; and on the other hand, the problem thatthe flux-weakening current is reduced due to bus voltage recoil can be avoided, the accuracy of the flux-weakening current is ensured, and the control effect on the motor is further improved.

The invention discloses a line system of a vehicle power chassis, belongs to the technical field of unmanned vehicles, and provides the following scheme. The line system of the vehicle power chassis comprises a parking control motor set, a main central domain controller and a backup central domain controller; the parking control motor set comprises a first front parking control motor, a second front parking control motor, a first rear parking control motor and a second rear parking control motor; the main central domain controller is used for controlling the first front parking control motor and the second front parking control motor in the parking control motor set of an unmanned vehicle; and the backup central domain controller is used for performing backup control on the first front parking control motor, the second front parking control motor, the first rear parking control motor and the second rear parking control motor in the parking control motor set. According to the technical scheme, the safety of the unmanned vehicle is improved.

The invention relates to a vehicle control method and device and a gearbox. The vehicle control method comprises the steps that fault information of a vehicle gear shifting electromagnetic valve is obtained; vehicle controllable gears are determined according to the fault information of the vehicle gear shifting electromagnetic valve; determining an output gear according to the vehicle controllable gear and a target gear; and according to the output gear, the vehicle controllable gear and the current vehicle driving gear, a final gear switching gear is determined. The gear of the vehicle can be in a controllable state, the gear is selected according to the actual driving condition, the gearbox can normally output power, the problem that the vehicle is out of control is avoided, and the life safety of a driver cannot be affected.

The invention discloses a fertilizer applicator capable of realizing intelligent speed regulation and discharging and an operation method thereof, and specifically relates to the field of fertilizer applicators. The fertilizer applicator comprises a fertilizer application box and a traction device, wherein the exterior of the fertilizer application box is fixedly sleeved by a stabilizing sleeve; the side surface of the stabilizing sleeve is fixedly connected with the side surface of the traction device; a discharging bin is fixedly mounted at the bottom part of the fertilizer application box;a soil turning sleeve rod is mounted on the front surface of the fertilizing box through a rotating shaft; and a hydraulic rod is fixedly mounted at the bottom part of the inner cavity of the soil turning sleeve rod. According to the invention, the distance between each magnetic ball and a discharge pipe is controlled through magnetic force formed by pressing insulating button plates at differentpositions to cooperate with electromagnet assemblies, so manual one-key control over the feeding speed and the discharging speed of a fertilizer raw material is formed; the discharging amount and whether discharging is conducted or not are more intelligent and effective; the problem that diversified environments cannot be regulated and controlled is avoided; and the practicability of the fertilizer applicator is improved.

The invention provides an energy saving method used for a cooking utensil and an energy saving system. The cooking utensil is provided with a communication module which is connected to a master control module of the cooking utensil. The communication module can be communicated with a terminal. The terminal sends a control instruction to the master control module through the communication module so as to make the cooking utensil work. A power supply terminal of the master control module and a power supply terminal of the communication module are connected to a first power supply. A power supply terminal of the communication module is connected to a second power supply. After the master control module is electrified and works, the master control module sets a level signal of an assigned interface connected to the communication module to be a first signal. The energy saving method comprises the following steps that the communication module detects whether the level signal of the assigned interface is the first signal; when the level signal of the assigned interface is detected to be the first signal, the communication module enters into a working state; and when the level signal of the assigned interface is detected to be a second signal, the communication module enters into a sleep state. In the invention, an endurance ability of a stand-by power supply in the cooking utensil can be reduced.

The invention discloses a method for preparing a quantum anomalous Hall effect thin film microstructure device. The specific steps are as follows: 2 o 3 Evenly coat electron beam glue on the layer as a protective layer; evenly coat UV positive photoresist on the protective layer; use photolithography to transfer the pattern of the mask to the UV positive photoresist; use a plasma remover to remove the photoresist The protective layer of etching pattern; use ion beam etching machine to etch Al on topological insulator material 2 o 3 layer and Cr doping (Bi,Sb) 2 Te 3 Layer, transfer the pattern of the mask to the topological insulator material; use acetone and isopropanol to wash off the remaining protective layer and UV positive photoresist, and dry to obtain a quantum anomalous Hall effect thin film microstructure device. The present invention avoids Al 2 o 3 The corrosion of the thin film avoids the problem that the quantum anomalous Hall effect caused by the accumulation of electron beam exposure cannot be controlled, and the quantum anomalous Hall effect after micro-nano processing is successfully realized.

The embodiment of the invention provides a reset control method of a sampling circuit. In the embodiment of the invention, a controller outputs a first driving signal to an isolating circuit connectedwith the controller, so that the initial chip to be reset is reset; then, the controller outputs a first driving instruction to the initial chip to be reset through the communication circuit, the initial chip to be reset outputs a second driving signal to the other connected isolation circuit according to the first driving instruction so as to reset the other chip to be reset connected to the other isolation circuit; then the controller outputs a second driving instruction to the other chip to be reset through the communication circuit, and the above steps are repeated until the plurality ofchips to be reset are all reset. According to the technical scheme provided by the embodiment of the invention, the problem of sampling chip locking and the problem of safety risk further caused in the prior art can be solved.