677results about How to "The technical means are clear" patented technology

The invention discloses a multi-control end unmanned aerial vehicle as well as consoles and a control switching method thereof, belonging to the field of unmanned aerial vehicles. The unmanned aerial vehicle comprises a first transmitter, a first receiver, a flight control panel, at least two consoles and a communication monitor for detecting the communication state between the unmanned aerial vehicle and the consoles in real time, wherein the first receiver is electrically connected with the flight control panel and the communication monitor respectively; and the first receiver selectively receives a flight control instruction sent by the console meeting the preset condition according to the communication state and inputs the flight control instruction to the flight console. According to the invention, the flight control right of the unmanned aerial vehicle can be switched and transferred to another authorized console (such as an alternate console or a relay console) arranged in advance, so that even if the console coupled with the unmanned aerial vehicle currently has a fault, the control on the unmanned aerial vehicle can be effectively ensured; and on the other hand, the flight movement range of the unmanned aerial vehicle can also be enlarged through the relay control of the flight control right.

The invention discloses intelligent multi-mode flying shooting equipment and a flying control method thereof, and belongs to the technical field of aviation. The flying shooting equipment comprises a rack, a flying mechanism, a shooting device and a control mechanism; the control mechanism also comprises an automatic tracking module, a shooting action setting module and a shooting strategy setting module, wherein the automatic tracking module is used for recognizing a target object, and realizing track tracing and follow shooting in allusion to the target object; the shooting action setting module is used for predefining at least one shooting action of the flying shooting equipment; the shooting strategy setting module is used for setting a corresponding shooting strategy according to the preset condition of the target object, and executing a corresponding shooting action when the preset condition is met. According to the intelligent multi-mode flying shooting equipment and the flying control method thereof disclosed by the invention, on the technological base of the traditional automatic follow shooting on the target object, intelligent situational shooting is completed with a rich shooting mode; under the condition that artificial control is not needed completely, a shooting effect with a lens sense and a shocking effect can be generated.

The invention discloses an unmanned aerial vehicle (UAV) emergency medical rescue system and a UAV emergency medical rescue method, and belongs to the field of UA air rescue. The system comprises an emergency center ground scheduling subsystem, a UAV subsystem, and a user terminal. The emergency center ground scheduling subsystem receives emergency information sent by the user terminal, plans an emergency rescue task, selects an appropriate emergency unmanned aerial vehicle, transmits remote guidance audio and video information to the emergency unmanned aerial vehicle, and receives vital sign data transmitted back by the emergency unmanned aerial vehicle. The UAV subsystem comprises the emergency unmanned aerial vehicle and vehicle-borne emergency medicines and medical tools. The emergency unmanned aerial vehicle receives and executes the emergency rescue task, and transmits on-site audio and video information and vital sign data back. By using the unmanned aerial vehicle which flies at high speed and can carry emergency medicines and medical tools to the place where an acute critical patient is located quickly, people around the patient can be remotely guided to treat the patient scientifically, and therefore, the survival rate of the acute critical patient is further increased.

The invention discloses an unmanned aerial vehicle cruising capacity monitoring system and method, and belongs to the field of unmanned aerial vehicles. The system comprises an unmanned aerial vehicle and a flight control station, a signal processing module and a data communication module. The unmanned aerial vehicle further comprises a signal input module, a flight control panel and a battery. The signal input module acquires energy consumption information of the unmanned aerial vehicle. The flight control panel acquires battery information and controls flight of the unmanned aerial vehicle. The signal processing module is suitable for calculating cruising capacity of the unmanned aerial vehicle according to the energy consumption information and the battery information. Energy consumption of the unmanned aerial vehicle is analyzed to accurately estimate cruising capacity of the unmanned aerial vehicle, and cruising capacity of the unmanned aerial vehicle is marked by cruising time and/or cruising distance. Meanwhile, influence of environment temperature on battery energy efficiency is also considered so that accuracy of prediction of cruising capacity of the unmanned aerial vehicle is further enhanced.

The invention discloses a system and a method for automatically generating panorama photographs through aerial photography by an unmanned aerial aircraft, belonging to the image information technology field. The system comprises an unmanned aircraft, an image collection device, a communication device, a control device and a panorama photograph obtaining device. The control device presets a photographing mode according to the performance parameters, photographing requirement and photographing environment of the image collection device; the unmanned aircraft executes flying and aerial photography task; the image collection device performs image collection to obtain preset quantity of sample photos having partial overlapping areas; the panorama photo obtaining device chooses a corresponding image processing method to automatically process the sample photograph according to the preset photographing mode, and outputs the panorama photos. The invention adopts the unmanned aircraft to perform the aerial photographing, integrates the functions of automatic generation and sharing of the panorama photos, and provides convenience to usage and sharing by the user.

The invention discloses a pair of intelligent glasses and a control method for controlling an unmanned aerial vehicle, and belongs to the field of unmanned aerial vehicle application. The pair of intelligent glasses comprises a remote control command sender, a telemetry data receiver, an image display device, an eyeball motion monitoring device and a controller, wherein the eyeball motion monitoring device is arranged on the image display device and is used for transmitting aerial images of a shooting device carried on the unmanned aerial vehicle to the image display device for displaying; the controller is electrically connected with the eyeball motion monitoring device and the remote control command sender respectively, and is applicable to generating a control command and transmitting the control command to the unmanned aerial vehicle according to user eyeball motions detected by the eyeball motion monitoring device; and the shooting device is controlled according to the control command to perform corresponding actions. The invention provides a conception of adjusting the direction of the shooting device carried on the unmanned aerial vehicle by using the eyeball motions, and the natural motions of eyeballs during observation are fully utilized to automatically adjust the best field of view. Meanwhile, the eyeball motions are combined with the flight path control of the unmanned aerial vehicle.

The invention discloses an aerial photographed data download system and method, and belongs to the application field of unmanned planes. The system comprises an unmanned plane, an aerial photographing device, a user terminal, a control management device, a storage assembly, and a communication assembly. The aerial photographing device is hung to the unmanned plane. The unmanned plane is in wireless connection with the control management device and the user terminal. The communication assembly enables bidirectional communications among the control management device, the unmanned plane and the user terminal to be achieved. The control management device sends a control instruction. The unmanned plane receives the control instruction, and is combined with the aerial photographing device to collect aerial photographed data. The storage assembly stores the aerial photographed data of the unmanned plane. The user terminal emits a download request, selects to-be-downloaded aerial photographed data, and receives the selected aerial photographed data. A registered user can freely download aerial photographed images on a specific occasion whether an unmanned plane for aerial photographing is manually controlled or controlled by the system according to a preset course.

The invention discloses an electric unmanned plane and a cruising ability estimating method thereof, and belongs to the field of unmanned plane. The electric unmanned machine comprises a memory, which is used to store the total electric quantity of a battery and the measured value of the current left electric quantity of the battery; a container, which is used to store the relationship, which is obtained in advance, between the weight of load and the cruising ability; a weight obtaining module, which is used to obtain the actual weight of the load of an electric unmanned plane; and a controller, which is used to estimate the cruising ability of the electric unmanned plane according to the relationship, actual weight of load, total electric quantity of the battery, and current left electric quantity, wherein the cruising ability comprises cruising distance and/or cruising time, and the weight of load should be in the range of carrying capacity of the unmanned plane. On the basis of current technology for estimating the cruising ability of electric unmanned plane, the provided method takes the load of electric unmanned plane into account, and thus the accuracy of estimation for the cruising ability of electric unmanned plane is further improved.

The invention discloses an authentication system and method for providing an authentication service specific to an unmanned aerial vehicle and a ground station, and belongs to the technical field of authentication. The system comprises the unmanned aerial vehicle, the ground station and an authentication center, wherein the ground station sends an identity authentication request message including unmanned aerial vehicle and ground station certificates to the authentication center; the authentication center returns an identity authentication response message; and the ground station and the unmanned aerial vehicle resolve to obtain an authentication result, and establish a data link and negotiate a key if the identities of both parties are legal. The digital certificates of the unmanned aerial vehicle and the ground station are issued and managed through introduction of a third authentication mechanism, namely, the authentication center, and the identity legality of the current unmanned aerial vehicle and ground station can be judged through verification of the certificates of the unmanned aerial vehicle and the ground station which are currently correlated with each other and send authentication requests, so that an illegal unmanned aerial vehicle is prevented from accessing a ground station network system and that an illegal ground station is prevented from controlling the unmanned aerial vehicle. Meanwhile, illegal stealing of user communication data can be prevented, and the security of unmanned aerial vehicle communication is enhanced greatly.

The invention discloses a quick and safe landing device and method for an unmanned aerial vehicle, belonging to the unmanned plane field. The quick and safe landing device for an unmanned aerial vehicle is provided with a trigger device which can trigger the unmanned aerial vehicle to execute the safe and quick landing mode; the unmanned aerial vehicle comprises a memory, a flight control device and a rotor; the memory is used for storing the preset safe and quick landing speed; the flight control device can control landing of the unmanned aerial vehicle according to the preset safe and quick landing speed; the rotor can be used for adjusting the rotation speed under the control of the flight control device; and the flight control device is connected with the memory and the rotor. The quick and safe landing device and method for an unmanned aerial vehicle can realize safe and quick landing of the unmanned aerial vehicle, and not only can reduce the air crash risk caused by too fast landing speed of the unmanned aerial vehicle, but also can prevent accidents caused by waiting for a too long time because of too slow landing speed of the unmanned aerial vehicle and the insufficient electric quantity.

The invention discloses an aircraft training guiding device and a method, which belongs to the technical field of aviation. The training guiding device comprises a guiding module for guiding a user to operate on the aircraft to implement a specified flight action. The guiding module further comprises an operation database, a sensing unit and a prompting unit, wherein the operation database is used for storing programs for operating on the aircrafts; the sensing unit is used for sensing the state of the aircraft and generating feedback information; and the prompting unit is used for reading corresponding operation or action in the operation database according to the feedback information of the sensing unit and sending a prompting signal to the user to prompt the user to complete the specified flight action. Through setting the user teaching programs, the user is assisted to learn the flight actions and application operation of the aircraft, operation experience of the user is greatly enhanced, and fun of driving the aircraft can be enjoyed.

An unmanned aerial vehicle return method, a return system and the unmanned aerial vehicle thereof, the unmanned aerial vehicle return system includes an unmanned aerial vehicle body (1) and a control terminal (2), and the unmanned aerial vehicle body (1) includes a A wireless communication module (3) for wireless communication of the terminal (2) and a control module (4) for controlling the flight of the unmanned aerial vehicle, the control module (4) receives information from the control terminal (2) via the wireless communication module (3) ) or trigger the automatic return mode, the control module (4) calculates and executes the return path from the current position to the return position and sends the return position to the control via the wireless communication module (3) terminal (2). In the return method, the UAV body sends the return position to the user and flies to the return position along the return path.

The invention discloses a system and method for realizing video seamless switching between multiple screens and belongs to the audio and video processing field. The system includes a first video playing terminal, a second video playing terminal and a screen switching server, wherein the first video playing terminal and the second video playing terminal are used for playing video files, and can perform screen switching operation on a currently-played video file, the first video playing terminal can switch the video file to the second video playing terminal so that the video file can be continuously played at the second video playing terminal, and the screen switching server detects and records equipment information and screen switching operation information to determine a time point when the second video playing terminal plays the switching-in frame of the video file. With the system and method of the invention adopted, seamless switching of media content from the screen of one terminal to the screen of the other terminal can be realized, and a user can freely and continuously switch a certain video between a plurality of screens for many times so as to complete watching the video.

The invention discloses an unmanned vehicle experience system based on augment reality and an experience method thereof. The unmanned vehicle experience system based on augment reality comprises at least one unmanned vehicle body (1) and at least one corresponding user terminal (2) which are connected with each other by wireless communication equipment, the unmanned vehicle body (1) is provided with a shooting device (3) for acquiring real scene image data and a measurement module (4) for measuring parameter data of the unmanned vehicle body (1), the user terminal (2) is provided with a virtual scene generator (5) for generating a virtual scene and a virtuality-reality combination module (6), the virtuality-reality combination module (6) establishes a real scene space based on the image data and the parameter data and embeds the virtual scene generated by the virtual scene generator (5) into the real scene space to form an unmanned vehicle experience environment based on augment reality.

The invention discloses an UAV (unmanned aerial vehicle)-based smart home system and method, belonging to the UAV application technical field. The system comprises an UAV, an intelligent hub device and a smart home device. The UAV is in connection with the intelligent hub device and can perform duplex communication; the intelligent hub device is in connection with the smart home device and can perform duplex communication; the UAV is suitable for collecting object information and sending the object information to the intelligent hub device; the intelligent hub device is suitable for receiving and processing the object information, generating reactive signals, and sending the reactive signals to the smart home device; the smart home device is suitable for receiving the reactive signals, and performing corresponding operations. The UAV-based smart home system and method utilize the UAV to collect user information in real time, actively select an intelligent control mode most suitable for a user, and realize the intelligent control of a plurality of small smart home devices configured at home.

The invention a mixed type circuit breaker with a bidirectional disconnecting function and an on-off method therefor. The circuit breaker comprises a main current loop, a current transfer branch, an overvoltage limiting branch, an online monitoring system, a control system, a wire inlet end C1 and a wire outlet end C2; the main current loop, the current transfer branch and the overvoltage limiting branch are connected in parallel; and the negative electrode of a semi-control type power semiconductor device VD1 and the positive electrode of a semi-control type power semiconductor device VD3 are connected with one end of a high-speed mechanical switch fracture while the negative electrode of a semi-control type power semiconductor device VD2 and the positive electrode of a semi-control type power semiconductor device VD4 are connected with the other end of the high-speed mechanical switch fracture. The mixed type circuit breaker has the bidirectional conduction and disconnecting capability and can be applied to a bidirectional flow-through direct current power supply system.

The invention relates to an unmanned aerial vehicle test bed and a test method thereof. The unmanned aerial vehicle test bed comprises a fixed base (1), a guide shaft (4), a double flange structure, a flange ring (6), a motor mounting base, a motor (17), a rotor wing (18), a force sensor (13), a speed sensor (8) and a torque sensor (14), wherein the double flange structure comprises an upper flange (3) and a lower flange (2), the upper flange (3) is fixedly connected with the lower flange (2), the motor mounting base comprises a motor mounting lower foundation bed (15) and a motor mounting upper foundation bed (16), the motor mounting upper foundation bed (16) is fixed on the motor mounting lower foundation bed (15), and the rotor wing (18) is fixedly connected with the motor (17). The invention also provides a test method of an unmanned aerial vehicle aircraft model airplane motor. A novel mechanical structure improves stability and test accuracy of the test board, and the test method can be widely applied to the fields of motor characteristic test and propeller lift characteristic test.

The invention discloses an unmanned plane flight accompanying aerial photographing system and method, and belongs to the application field of unmanned planes. The system comprises a main flight aircraft and a flight accompanying unmanned plane carrying aerial photographing equipment. The main flight aircraft and the flight accompanying unmanned plane are provided with a first flight controller and a second flight controller respectively. The system also comprises a flight instruction synchronization device. The first flight controller receives a first flight control instruction, and controls the flight of the main flight aircraft. The flight instruction synchronization device obtains the first flight control instruction, and generates a second flight control instruction in a synchronous manner according to the first flight control instruction. The second flight controller receives the second flight control instruction, and controls the flight of the flight accompanying unmanned plane. The aerial photographing equipment automatically tracks and photographs the main flight aircraft. The flight accompanying unmanned plane carrying the aerial photographing equipment is utilized to photograph the main flight aircraft that is flying, and a flight control instruction synchronization mechanism is also adopted, so a photographing process can be effectively completed.

The invention discloses an unmanned aerial vehicle-based spray sprinkling control method and control device. The control method comprises the following steps that: an unmanned aerial vehicle is controlled to perform spray sprinkling work according to preset flight trajectories; corresponding relations between the actual flight trajectories of the unmanned aerial vehicle and the preset flight trajectories are monitored; and if it is judged that the actual flight trajectories deviate from the preset flight trajectories, the unmanned aerial vehicle is automatically controlled to stop the spray sprinkling work. According to the unmanned aerial vehicle-based spray sprinkling control method and control device of the invention, as for a condition that an unmanned aerial vehicle does not fly according to preset flight paths and is even out of control, the problem of influence on the growth of crops caused by improper dosage sprinkling at local regions can be solved.

The invention discloses an MySQL database cluster processing method and a processing system thereof. The method comprises the following steps: in step 1, the MySQL database cluster includes a primary MySQL database for writing and a plurality of subordinate MySQL databases for querying, and users access the MySQL database cluster through web; in step 2, when the web access is a write, update or delete request, the primary MySQL database responds to the request, and when the web access is a query request, a load balancer (LVS) including a primary LVS and a subordinate LVS receives the query request, a virtual IP address (VIP) monitors whether the primary LVS and the subordinate LVS are available; in step 3, a Keepalived module monitors whether a database query server corresponding to the subordinate MySQL databases is available, automatically kicks the database query server with failure out of the cluster, and assigns query tasks according to the predetermined weight; and in step 4, the database query server that receives the query tasks carries out query and returns the query result to the user.

The invention discloses a bidirectional switching-off DC circuit breaker and a switching-off method. The circuit comprises a main current loop, a solid-state switch branch, an oscillation transfer branch, a control system, a wire outlet terminal C1 and a wire outlet terminal C2. The main current loop, the solid-state switch branch and the oscillation transfer branch are connected in parallel and are led out through the wire outlet terminals C1 and C2. A diode D1 in a solid-state switch assembly is in anti-parallel connection with the two ends of a full-control power semiconductor device T1. Acapacitor C and a resistor R are connected in series and then connected with the MOV in parallel, and then is connected in parallel with two ends of T1. A diode D2 is in anti-parallel connection withthe two ends of a full-control power semiconductor device T2. The capacitor C and the resistor R are connected in series and then connected with the MOV in parallel, and then are connected in parallelwith two ends of T2, and T1 and T2 are in anti-series connection. Positive electrodes and negative electrodes of the semi-controlled power semiconductors T1 and T2 are reversely connected in series.One end of an inductor is connected with the positive electrode of the T1, the other end of the inductor is connected with the other end of the capacitor, and the other end of the capacitor is connected with the wire outlet terminal C1 which is connected with the negative electrode of the T1.

The invention discloses a rigidity-variation-based milling chatter suppression method and a milling chatter optimization system. The method comprises the steps of carrying out a hammering modal experiment on a milling cutter to obtain modal parameters, such as modal mass, modal stiffness and modal damping, of the milling cutter; carrying out a milling force coefficient identification experiment on a predetermined workpiece material to obtain a milling force coefficient; establishing a stiffness time varying milling dynamical equation; conducting stability analysis of the stiffness time varying milling dynamical equation under various stiffness changes to obtain milling stability lobe graphs under different conditions, comparing the lobe graphs and selecting the maximum cutting limit depth as the cutting parameter to suppress chatter. By means of the method and system, milling chatter can be effectively suppressed, the milling stability lobe graphs are improved, and the machining quality and the machining efficiency are improved.