70results about How to "Reduce the chance of crashing" patented technology

The invention discloses an unmanned air vehicle with multiple rotary wings in a plane-symmetry layout, comprising a body, rotary wing assemblies and undercarriage, wherein, the number of the rotary wing assemblies is an even number more than or equal to 4; each rotary wing assembly comprises a rotary wing support arm, a rotary wing motor and a rotary wing, the rotary wing motor is fixed at the outer end of the rotary wing support arm; the rotary wing is arranged on a rotation shaft of the rotary wing motor and is driven by the rotary wing motor; the longitudinal symmetrical planes of the all rotary wing assemblies relative to the body are distributed in a bilateral symmetry mode, and are fixedly connected with the two sides of the body through the inner ends of the rotary wing support arms; an equipment compartment and a power source compartment separated front and back are arranged in the body, the equipment compartment comprises a navigation component, a flight control component and a communication component; the power source compartment comprises a battery for providing power to the electronic equipment of the whole air vehicle; the undercarriage is fixedly connected at the lower part of the body; and the flight control component is provided with a flight control computer with the functions of fault diagnosis of the multiple rotary wings and fault-tolerant flight control. The unmanned air vehicle has the advantages of novel appearance layout, concise internal structure, reliable system control and better engineering application value, and is easy for engineering implementation.

The application discloses a rolling and pagination display method and a rolling and pagination display device for a network dynamic picture. The method comprises the steps of: downloading the network dynamic picture from a server to local by a picture access and download module; determining the valuing range of a visual area of a current webpage in real time according to the rolling value of a scroll bar by a visual area determining module; traversing the dynamic pictures downloaded to the local by a traversal processing module; aiming at each dynamic picture, judging whether the preset position of the dynamic picture is within the valuing range of the visual area; if yes, building a display label to display the corresponding picture; otherwise, not building the corresponding display label, and deleting the display label in the case that the corresponding display label is built; refreshing the webpage by a display module, and executing the display label to upload and display the corresponding picture.According to the rolling and pagination display method and device for the network dynamic picture, the rolling and pagination display of the dynamic picture can be achieved by rolling the scroll bar, the occupation of an internal storage and a GDI object can be reduced, and the processing efficiency of a client is improved.

The invention discloses a laser energy supply communication system for an air vehicle. The laser energy supply communication system for the air vehicle comprises a ground energy supply station and the air vehicle. The ground energy supply station is mainly composed of a power supply, a laser driving unit, a laser unit, a beam shaping unit, an optical antenna, a two-dimensional rotary table, an electronic compass, a GPS sensing probe, a CCD image processing unit, a tracking capture control unit and a demodulation unit. The air vehicle is mainly composed of a photoelectric energy converting unit, an energy management unit, a battery pack, a detection unit and a reflection modulator. By means of the laser energy supply communication system for the air vehicle, energy is transmitted to the air vehicle through wireless laser, the working time of the air vehicle is effectively prolonged, meanwhile, the information of the air vehicle is modulated to a small part of laser returned along the original path based on the optical reflection principle, and laser communication between the air vehicle and the ground is achieved.

The embodiment of the invention provides a data fusion and flight mode switching method and device for flight equipment. The data fusion method for flight equipment includes: acquiring the measured data of each sensor, determining the work state of each sensor, and performing data fusion according to the measured data and work state of each sensor, thus obtaining flight state variables of the flight equipment and effectiveness parameters thereof. According to the invention, when a disturbed sensor or broken-down sensor exists among the sensors, by determining the work state of each sensor andperforming data fusion according to the work status, measured data of normally operating sensors can be obtained, and through data fusion of the obtained measured data, the flight state variables of the flight equipment and effectiveness parameters thereof can be obtained, thus avoiding error of the data fusion result, realizing safe and autonomous flight of the flight equipment, and reducing theprobability of air crash.

A flight control method, unmanned aircraft and flight control system, the method includes: the current power information acquisition of unmanned aircraft battery (101); the current electricity information meet the first battery alarm condition, the current state for unmanned aerial vehicle (102); according to the current state of unmanned aircraft, unmanned aircraft into safety control the corresponding mode (103). On detection of unmanned aircraft in low power situation, the security mode control of unmanned aircraft into its current state correspondingly, so as to ensure unmanned aircraft flight safety, reduce the probability of unmanned aircraft crash.

The invention relates to a database server high-availability performance detecting system and belongs to the field of server performance detecting. The problem that according to an existing server performance detecting technology, server load response time and hardware resource power dissipation cannot be estimated is solved. The detecting system comprises a hardware state detecting module, a performance analyzing module and a load generating module. The hardware state detecting module further comprises a detecting submodule, a query submodule, a resource detecting submodule and a power dissipation computing submodule. The performance analyzing module comprises a grade estimating submodule and a comprehensive analysis submodule. The detecting system is used for server high-availability performance.

The invention relates to a locomotive and a locomotive collision-proof structure for a rail vehicle. The locomotive collision-proof structure comprises front collision-proof columns and corner columns, and the front collision-proof columns and the corner columns are arranged on a chassis at the front end of a driver's cab and respectively symmetrically distributed along a vehicle advancing direction. The locomotive collision-proof structure further comprises a semicircular collision-proof waist beam and lateral collision-proof columns on a lateral chassis of the driver's cab, and the collision-proof waist beam is formed by connection of a lateral collision-proof waist beam and a front window collision-proof waist beam, the lateral collision-proof waist beam is fixed to tops of the lateral collision-proof columns, and the front window collision-proof waist beam is fixed to tops of the front collision-proof columns and the corner columns. The locomotive collision-proof structure for the rail vehicle is simple in structure and great in collision-proof performance; by synergistic effects of the front collision-proof structure and the lateral collision-proof structure, the locomotive collision-proof structure is capable of effectively dealing with front collision and also has a lateral collision prevention function, so that safety of the vehicle is improved. The probability of direct collision destroy of the front collision-proof structure is low, and high safety is realized.

The invention discloses a network medium information putting control system and method. The method comprises the following steps: presetting a weighted magnification parameter and a putting period for a user; receiving a pre-recharging electronic certificate submitted by the user; according to the weighted magnification parameter, carrying out a weighted magnification calculation to the pre-recharging electronic certificate to obtain an initial puttable value; according to the putting period according to the user, putting the network medium information of the user, wherein the current puttable value is initialized into the initial puttable value after a new putting period is started every time; calculating a real-time putting consumption value of the user in the current putting period; subtracting the real-time putting consumption value of the user from the current puttable value corresponding to the user; and when the current puttable value is less than an appointed value, forbidding to put the network medium information of the user within the remaining time of the current putting period.

The invention discloses a page generating and display method based on a JSON (java script object notation) format. The page generating and display method comprises the following steps: receiving a page loading request; obtaining a page configuration file based on the JSON format; calculating quantity of memory resources to be occupied by the page; obtaining the quantity of preset reserved memory resources; calculating total amount of memory needs; calculating the quantity of current available memory resources; if the total amount of memory needs is smaller than the quantity of current available memory resources, loading the page in a full loading mode, otherwise, converting the page configuration file based on the JSON format into the page configuration file based on an XML (extensive markup language) format and loading the page in a partial loading mode. The page generating and display method is suitable for needs of different memory conditions, so that the system breakdown probability is reduced, the memory resource judging granularity is relatively small, the judging accuracy for the practical memory available resources is relatively high, the practical page loading speed is increased, and the defect that the JSON format cannot be partially loaded is overcome.

The invention relates to a risk equipment positioning monitoring method, device and system and a storage medium, and the method comprises the following steps: obtaining all equipment of a platform, and the equipment comprises physical assets and virtual assets; selecting equipment needing risk scanning; setting the number of ports allowed to be opened by the equipment, scanning all ports of the equipment and outputting a port baseline; taking a port baseline as an increase and decrease basis, wherein the port baseline is an existing opened port parameter; and creating a new scanning task, repeatedly scanning all ports of the equipment, comparing the ports with the port baseline, and feeding back a comparison result. The application has the effect of conveniently positioning and monitoringthe risk of the equipment.

The present invention provides a memory allocation monitoring method and apparatus. The method comprises: acquiring file information and memory information, wherein the file information comprises a file name and a file line number that trigger allocation of memory, and the memory information comprises memory information allocated for executing a file indicated by the file line number, and the file line number is a line number of a file indicated by the file name; and according to the file information and the memory information, determining a total amount of memory occupied by the file indicated by the file line number. Real-time monitoring of a memory occupation amount in a program running process is implemented, so that memory leak is avoided, and thus a probability of system crash is reduced.

The invention discloses a power management system and method for a motor-driven four-legged robot. The system comprises a battery pack, a battery management board and a voltage regulator board connected in sequence; the battery pack is used for powering a motor-driven four-legged robot; the battery management board is used for detecting the power supply parameter of the battery pack and receivingthe power supply output parameter of the voltage regulator board, and managing the battery pack according to the power supply parameter and the power supply output parameter; the voltage regulator board is used for performing voltage regulation of the voltage outputted by the battery management board, monitoring the power supply output parameter, and feeding back the power supply output parameterto the battery management board. Therefore, on the basis of providing the working state monitoring function and the perfect protection mechanism, the power supply output parameter is stable, the computing load of the battery management board is reduced, and the probability of data error or system crash is reduced.

The invention discloses a servo oil cylinder hydraulic control system, and belongs to the field of maritime crane hydraulic technologies. The servo oil cylinder hydraulic control system comprises a motor, a main pump, a control pump, a hydraulic oil tank, a servo valve, a servo oil cylinder, a control module and a detection module, wherein the detection module is used for detecting the real-time position of a target object on the sea surface and sending the real-time position of the target object to the control module, and the control module is used for determining the moving direction and themoving distance of the target object according to the real-time position, which is sent by the detection module, of the target object and outputting corresponding control instructions to a main valveelement and a power-off automatic centering electromagnetic reversing valve according to the moving direction and the moving distance of the target object, so that a piston rod in the servo oil cylinder can be controlled to drive an external load for grabbing the target object to move along with the target object, the external load can automatically follow and grab the target object, and a closed-loop control system is formed. The hydraulic control system is high in reliability, and reduces the possibility of crashing the target object.

The invention discloses equipment and a method for maintaining reliability of distributed enterprises service bus intermediate flow, which provides maximal flexibility for an intermediary processing function of a system by adopting a distributed structure for intermediary processing nodes and uniformly dispatching the intermediary processing nodes through a server, thereby guaranteeing the reliability, the robustness and the stability of an enterprise service bus.

The invention discloses a chain hoisting mechanism of a coarse spinner. The chain hoisting mechanism comprises chain pieces, cover plates, springs and bobbin hangers, wherein the upper portion of each bobbin hanger penetrates through a center hole of each corresponding chain piece and supports a boss of the inner wall of each corresponding center hole, the top of each center hole is sealed by each corresponding cover plate, the two ends of each spring are connected with the top end of each corresponding bobbin hanger and each corresponding cover plate respectively, the springs is compression springs, the push force of the compression springs on the bobbin hangers is larger than force needed for triggering the bobbin hangers to move, and due to the flexible installation mode of the springs between the bobbin hangers and the chain pieces, the bobbin hangers and the chain pieces can have certain moving space in position. On one hand, the probability that the bobbin hangers are cracked up is greatly reduced, on the other hand, even if at different heights, the bobbin hangers can be triggered to move when stressed in the same degree, the whole device is convenient and easy to install and detach, efficiency is greatly improved, and industrial large-scale production and follow-up maintenance are facilitated.

The invention relates to a conveniently movable metal detector with an anti-collision function. The conveniently movable metal detector comprises a bracket and a detection disk, and further comprisesa moving mechanism and an anti-collision mechanism, wherein the moving mechanism comprises a circular guide rail, a rotating ring, a driving component, a circular gear, a first driving component and two moving wheels; the anti-collision mechanism comprises a distance sensor, a supporting sleeve, a second driving component, a lifting rod and a spring; the first driving component comprises a secondmotor and a first gear; the second driving component comprises a first motor, a winding disk and a connecting wire. In the conveniently movable metal detector with the anti-collision function, the detection disk can move along the ground by using the moving mechanism, thereby reducing load of an arm of an operator and improving practicability of the metal detector; obstacles in a moving directionof the detection disk can be detected under action of the anti-collision mechanism; the detection disk can stop moving when detecting the obstacles, thereby reducing probability of damaging the metaldetector.

The invention relates to an ultrasonic cleaning device which comprises a power source, an ultrasonic magnetic field generator and an ultrasonic hairbrush vibrator, wherein the power source is used for generating a high frequency alternating current, the ultrasonic magnetic field generator is electrically connected with the power source and is used for generating ultrasonic vibration, the ultrasonic hairbrush vibrator is mounted on the ultrasonic magnetic field generator and is arranged on a cleaning tool, and the cleaning tool is filled with sol agent. The ultrasonic cleaning device can be used for cleaning a gelatinizing needle when a gelatinizing process is accomplished or a gelatinizing device is not used for a long time. Therefore, the probability that the gelatinizing device is blocked due to the fact that glue is left on the needle of the gelatinizing device is lowered, the utilization of the gelatinizing device is increased, and production effectiveness is improved.

The invention provides a noise detection device and a noise detection method. The device comprises a protective casing, a first clamping rod and a detection block. Baffles are installed on the two sides of the protective casing. Springs are mounted on the outer walls of the baffles. A telescopic plate is fixed on the right side of the outer wall of each spring. The first clamping rod is located inthe middle of the protective casing. A movable plate is installed below the first clamping rod. A first clamping block is installed in the middle of the movable plate. First sliding blocks are installed on the two sides of the movable plate. The detection block is located on the inner side of the protective casing. According to the noise detection device and the noise detection method, which areprovided by the invention, the device is simple in structure, convenient for users to carry and higher in practicability; the device is provided with a structure for preventing the device from being impacted by external force; the device can be prevented from being impacted and damaged by the external force; the service life of the device can be prolonged through double-structure heat dissipation;mounting and dismounting are easy and convenient; dust can be prevented from entering the device; the sound receiving effect of the device is improved; and the noise detection effect of the device isbetter.

The invention provides an intuitive interaction device and an interaction method. The intuitive interaction device includes a management module, a detection module, an identity identification module, a speech recognition module and an interaction module. The management module carries out registering for a user and stores user features and a permission of the registered user. The detection module acquires images and sounds, and stores the images and the sounds and starts the identity identification module if it is detected that the images have a facial image. The identity identification module acquires a facial feature of an interaction user. The management module compares the facial feature of the interaction user with the user feature of the registered user to judge whether the interaction user is registered. After it is judged that the interaction user is registered, the speech recognition module is started to acquire a command of the interaction user. After it is judged that the above-mentioned command is valid, the interaction module is started and responds to the above-mentioned command to interact with the interaction user. The interaction device and the interaction method can reduce the power consumption, hardware costs and the crash probability of the intuitive interaction device.

The invention discloses a data caching method, which comprises the following steps: based on a LruCache storage mechanism, carrying out encapsulation processing on storage contents and elimination and deletion operations, deleting eliminated data from a memory caching space, and transferring the eliminated data into a file caching space; according to the invention, on the basis of the characteristics of lightweight storage and rapid reading, long-time storage of cached data is realized.

The invention discloses a vibration attenuation type intelligent automated guided vehicle and a transportation method thereof. The vibration attenuation type intelligent automated guided vehicle comprises a vehicle body, a vibration attenuation walking component and an electric component, wherein a spring is arranged between each guide rod and a vibration attenuation component, a vibration attenuation connecting rod and the vibration attenuation component are vertically rotatably cooperated, vertical and horizontal vibration attenuation can be realized in a movement process, and meanwhile, bumping in a movement process due to a reason that a road surface is uneven can be buffered so as to improve the driving smoothness of the automated guided vehicle, reduce the generation of vibration andeffectively prevent objects on the automated guided vehicle from tipping. Meanwhile, a heat dissipation component is arranged in an electrical cabinet, fan heat dissipation intensity is regulated through temperatures, a probability that a system crashes due to a heat dissipation problem is lowered, the automated guided vehicle is under an optimal working state, and the working efficiency of the automated guided vehicle is improved.

The invention discloses a method to process a web game and an electronic terminal. The method comprises: displaying a web game center login interface for a user; in response to account information which the user inputs through the web game center login interface, and transmitting the account information to a web game center for verification; after passing the verification, displaying a web game center interface; providing M game camps for all logged-in users on the web game center interface, wherein each game camp is provided with N third-party game entries; when it is monitored that the logged-in users select one of the M game camps, prohibiting the opening of permission to log in others of the M game camps to the logged-in users. Therefore, each logged-in user can join only one game camp; a server has the sole need to respond and load the game for the logged-in user in his or her game camp; the server may respond and load games fewer times upon malicious operations, and chances for the server to crash are slimmed.

The invention discloses an ultralow-temperature high-performance lithium iron phosphate power battery, and belongs to the field of unmanned aerial vehicle batteries, the ultralow-temperature high-performance lithium iron phosphate power battery comprises a battery body, the battery body can be installed in an unmanned aerial vehicle battery compartment, and one end of the battery body is provided with a power connection end electrically connected with an unmanned aerial vehicle; the outer side of the battery body is fixedly connected with at least one auxiliary adjusting mechanism, the auxiliary adjusting mechanism is used for providing auxiliary force between the battery body and the inner wall of the battery bin to fix the battery body and heat the battery body, and the auxiliary adjusting mechanism comprises a protective shell fixed to the outer side of the battery body; according to the low-temperature battery box, the probability that the battery body falls off from the interior of the battery box when the unmanned aerial vehicle flies can be effectively reduced, the power supply stability of the unmanned aerial vehicle is improved, the probability that the unmanned aerial vehicle crashes is reduced, and the working performance of the battery body at the low temperature is guaranteed.

The invention discloses a flight control method and system and an unmanned aerial vehicle. The method includes the steps that current electricity quantity information (101) of a battery of the unmanned aerial vehicle is obtained; when the current electricity quantity information meets a first electricity quantity alarming condition, the current state (102) of the unmanned aerial vehicle is obtained; according to the current state of the unmanned aerial vehicle, the unmanned aerial vehicle is controlled to be in a corresponding safe protection mode, and when the current state is an aerial flight state, the unmanned aerial vehicle is controlled to be in a landing state; if the current state is a non-lift-off state, the unmanned aerial vehicle is controlled to be in a shutdown mode (103). When it is detected that the unmanned aerial vehicle is under a low-electricity quantity condition, the unmanned aerial vehicle is controlled to be in the safe protection mode corresponding to the current state, in this way, the flight safety of the unmanned aerial vehicle is guaranteed, and the probability of crash of the unmanned aerial vehicle is lowered.

The invention relates to a safety type heating radiator with an automatic cleaning function. The safety type heating radiator comprises a body and further comprises a protection mechanism and a cleaning mechanism. The protection mechanism comprises a baffle, a blowing assembly and two buffering assemblies. Each buffering assembly comprises a first sliding rod, a positioning rope, two first fixingblocks, two first springs, two connecting sleeves and two transmission rods. The cleaning mechanism comprises a second sliding rod, two second fixing blocks and two cleaning assemblies. Each cleaningassembly comprises a fixed pulley, a connecting line, a second spring, a sliding sleeve and a cleaning brush. The blowing assembly comprises a mounting bearing, a gear, a rack, a drive shaft and at least two fan blades. According to the safety type heating radiator with the automatic cleaning function, through the protection effect of the protection mechanism, the possibility that the heating radiator is crashed is reduced, the heating radiator can be cleaned through the cleaning mechanism, and the practicality of the heating radiator is improved.