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 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.

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 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 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 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 provides an aircraft. The aircraft comprises a main body with propellers, a first frame surrounding the main body, a second frame and a third frame, wherein the second frame and the third frame are symmetrically arranged outside the first frame. The first frame is in pivotal rotation connection with the main body through a first shaft so that the first frame can overturn relative to the main body. The second frame and the third frame are in pivotal rotation connection with the first frame through a second shaft perpendicular to the first shaft so that the second frame and the third frame can rotate in the plane perpendicular to the second shaft. The edges of the second frame and the third frame exceed the edge, in the same direction, of the first frame. The aircraft can complete actions of walking and climbing walls with the help of the frames, the crashing possibility of the aircraft can be decreased, and thus the aircraft is not limited by landforms and can rise and fall at random.

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 discloses a control method of a multi-rotor unmanned aerial vehicle, the multi-rotor unmanned aerial vehicle (100), a control device (200) and a nonvolatile computer readable storage medium (300). The control method of the multi-rotor unmanned aerial vehicle comprises the following steps: (01) acquiring the power state of each rotor of the unmanned aerial vehicle; and (02) when the power failure of any rotor wing of the unmanned aerial vehicle is determined based on the power state, controlling the unmanned aerial vehicle to enter a balance mode, wherein in the balance mode, the unmanned aerial vehicle rotates at an angular speed larger than a first threshold value, and the displacement of the unmanned aerial vehicle in the horizontal direction is smaller than a preset displacement amount.

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.