39results about How to "Way to avoid" patented technology

A portable intelligent DC grounding finder, relating to the field of testing short circuit, broken circuit, leakage or incorrect connection on electric instrument, lines or elements, and detecting the failure in cables, transmission lines or networks. The invention is composed of a hand-held set with a converted DC clip style meter and a DC insulation monitor base. The invention uses the clip style meter to correctly find the grounded DC lines and furthermore looks up the specific grounding points of instrument, and correctly finds out the grounding point without DC, even if eliminates the grounding failure under the condition wherein field conditions are allowable, thereby avoiding inconvenience of changing operation modes, revising fixed values and long working time for looking when applying power failure in the work program for finding the grounding, fast and correctly finding the grounding point, which is suitable for testing the short circuit, the broken circuit, leakage or incorrect connection on the electric instrument, the lines and the elements, and detecting the failure in the cables, the transmission lines or the networks.

The invention relates to an auxiliary fault detection system and a method which are applied in a production information system for assisting the fault detection operation of a circuit board, the auxiliary fault detection system comprises a detection module for detecting identifying information of the circuit board, detecting the circuit board in the fault detection operation and sending corresponding fault code information and fault position information, a database for storing the fault code information and the corresponding fault position information detected in the fault detection operation and storing the identifying information of the circuit board, an extraction module for extracting the fault code information corresponding to the circuit board from the production information system according to the detected identifying information, an inquiry module for extracting the corresponding fault position information from the database according to the fault code information, and a calculation module for calculating the respective proportion of each fault position contained in the fault position information according to the fault position information for reference.

The invention provides a cradle head. Each of a navigation direction shaft arm, a transverse rolling shaft arm and a pitching shaft arm is driven by a motor, so that the three shaft arms rotate independently. A stator or a rotor of each motor is directly connected with the shaft arm driven by the corresponding motor. The manner that motors on an existing cradle head are connected with shaft arms through output shafts is avoided. Due to the fact that the output shafts of a thick and large cantilever structure are prevented from being used, the weight and size of the motors can be reduced, the weight and size of the cradle head are reduced, the burdens of an unmanned aerial vehicle are reduced, and an aerial photographing effect is guaranteed.

The invention provides a method for determining isolation between antennas, which comprises the following steps of: modeling the antennas of which the isolation needs to be computed; enabling the antennas of which the isolation needs to be computed to be equivalent to a multi-port microwave network, wherein each antenna corresponds to a port; and then, computing the isolation between the antennas by using a formula, wherein C represents the isolation between the antennas, S11 and S21 respectively represent S parameters between two ports, and theta represents the phase position corresponding to S11. The method provided by the invention, which is used for directly computing the isolation between the antennas through the formula, is quick and convenient and avoids the defects that the isolation between antennas is acquired through complicated tests and many interference factors exist in the tests in the past, so that the result is closer to the theoretical condition, and the workload is greatly lowered. The invention provides a definite data index for analyzing electromagnetic energy crosstalk generated after different radio frequency devices pass through antennas.

The invention relates to a method for acquiring characterization parameters of hypertension and complication. The method comprises the following steps of: 1) establishing a hypertension and complication susceptibility gene database; 2) constructing an individual hypertension and complication characterization parameter analysis platform according to the hypertension and complication susceptibility gene database established in the step (1); 3) analyzing individual hypertension and complication characterization parameters based on the analysis platform constructed in the step (2); and 4) outputting individual hypertension and complication characterization parameters. The invention provides a method for acquiring the hypertension and complication characterization parameters which can acquire accurate characterization information, can acquire the information timely and can lay a foundation for follow-up treatment work.

The invention discloses a realization method and a system for callback; wherein the method comprises: after a first terminal triggers Unstructured Supplementary Services Data service (USSD), a core network of the roaming domain of the first terminal routes the USSD request message sent by the first terminal to a service control point of the home domain through a home position register of the home domain of the first terminal and then triggers the callback service of the service control point; wherein the USSD request message carries the number of a second terminal; the service control point sends scheduled message to the service control point to inform a service switching point to call; the service switching point calls the first terminal and the second terminal to realize the conversation of the first terminal and the second terminal. The adoption of the invention has the advantages of completing the call under service control when the user roams, ensuring more reasonable charging, and avoiding the problems of unreasonable charging and undetermined rate selection mode of the related technology.

The invention belongs to the technical field of semiconductor nano-material preparation, and discloses a nano-structure-controllable diluted magnetic semiconductor material having room-temperature ferromagnetism and a preparation method and device of the diluted magnetic semiconductor material. The material is prepared in the method comprising the steps that a zinc acetate solution and a copper acetate solution having the same volume are placed in two solution containing cups of a double-source ultrasonic atomization pyrolysis spraying instrument respectively, double-source ultrasonic atomization pyrolysis spraying is carried out, and the nano-structure-controllable diluted magnetic semiconductor material deposited on a substrate is obtained. Precursors are atomized through ultrasonic waves, and therefore smaller and more uniform mist can be obtained; double-source atomization is adopted, so that cross contamination between the solutions is avoided during mixing, meanwhile, component structures are easy to control, and preparation of a gradient film or a multilayer film structure is facilitated; the device is improved, so that purely diluted magnetic semiconductor materials with different nano-structures and various good properties are prepared, Ms can reach 3.8*10<-4>emu/cm<-2>, Hc can reach 0.1 KOe, and the materials have the characteristic of soft magnetism.

The invention relates to a process for synthesizing p-tert-butylbenzoic acid. The process comprises the following steps of: adding p-tert-butyltoluene and cobalt acetate into a reaction kettle, introducing oxygen-containing gas, triggering at the temperature of between 150 and 155 DEG C, performing oxidation reaction for 0.5 to 1 hour, and continuously reacting at the temperature of between 135 and 145 DEG C for more than 5 hours to obtain a p-tert-butylbenzoic acid crude product; cooling the p-tert-butylbenzoic acid crude product to crystallize, performing centrifuge dripping, and striking and washing by using p-tert-butyltoluene to obtain a centrifugation crude product; and adding the centrifugation crude product into a dissolution kettle, adding methylbenzene, raising temperature and dissolving, filtering when a mixture is hot to remove impurities, adding water to wash, transferring materials to a recrystallization kettle, cooling to crystallize, centrifuging, striking and washing by using methylbenzene, and drying to obtain a p-tert-butylbenzoic acid finished product. The prepared p-tert-butylbenzoic acid is white crystals and does not contain mechanical impurities; and the melting point is 164.0 to 167.0 DEG C, the acid value is 312 to 316mgKOH/g, high performance liquid chromatography (HPLC) purity is more than or equal to 99.2 percent, moisture is less than or equal to 0.08 percent, and methylbenzene is less than or equal to 0.05 percent.

The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner and an outdoor unit defrosting control method thereof. The air conditioner and the outdoor unit defrosting control method aim to solve the problems that an existing air conditioner cannot perform different defrosting methods according to different situations, so that the heating effectis prone to being seriously affected due to the fact that an outdoor unit has the frosting phenomenon. Therefore, the outdoor unit defrosting control method comprises the steps that the air suction pressure of the air conditioner and the coil pipe temperature of an outdoor unit are acquired when the air conditioner is in heating operation so as to judge the frosting degree of the outdoor unit; andthe air conditioner is selectively enabled to enter the corresponding outdoor unit defrosting mode according to the air suction pressure of the air conditioner and the coil pipe temperature of the outdoor unit, thus, the air conditioner can select an optimal defrosting mode according to the frosting degree of the outdoor unit, and then the problems that for the existing air conditioner, the heating effect is prone to being seriously affected due to the fact that the selected defrosting mode and the actual frosting condition are not matched is effectively solved.

The invention discloses an automatic adjustment stretching knee joint rehabilitation training device. The device comprises a fixed seat, and a seat integrally formed with the fixed base is arranged onthe side face of the fixed base. The thickness of the seat is smaller than that of the fixed seat; two groups of bending trainers are arranged on the fixed seat, two groups of mounting grooves are formed in the fixed seat, each group of mounting grooves comprises a front mounting groove and a rear mounting groove, each bending trainer comprises a shank fitting rod, and thigh fitting rods rotationally connected with the shank fitting rod are arranged on two sides of the upper end of the shank fitting rod. When the device is in use, if a patient cannot bend autonomously, the operation can be performed by automatically stretching an adjusting rod, a connection driving plate is driven to move, therefore, the bending effect of the bending trainers can be adjusted autonomously, rehabilitation training work of the knee joint can be completed autonomously without cooperation of other people, adaptive training can be conducted according to different recovery requirements of individuals, a conventional fixed adjustment or non-adjustment mode is avoided, and the use requirements of different patients are met.

The invention belongs to the field of Internet technology, and provides a charging method and device, an Internet of things application platform and a charging server. The method comprises the following steps: acquiring resource data of Internet of things terminal equipment; receiving a charging strategy sent by an Internet of things platform management system; performing charging calculation according to the resource data and the charging strategy to obtain charging data of the Internet of things terminal equipment; storing the charging data to a database; reading the charging data from the database, and generating a billing statement according to the charging data; and sending the billing statement to the Internet of things platform management system. According to the invention, the problem that a charging method provided by the prior art has a repeated charging phenomenon can be solved.

The invention discloses a municipal pipe network health degree online monitoring system based on the Internet of Things technology, which is characterized in that distributed fiber grating sensors areannularly distributed on the outer wall of a municipal drainage pipe network and used for measuring temperature data of the outer wall of a municipal sewage pipeline; a municipal pipe network adoptsa subsection control strategy, a control area is divided every 400-800 meters, and temperature data detected by distributed fiber grating sensors in each control area is sent to a monitoring center byan area switch through an optical fiber ring network; the monitoring center judges the leakage condition of the municipal drainage pipe network according to temperature data detected by the distributed fiber grating sensors. The system can overcome many defects and limitations of a traditional manual detection mode and a traditional sensor, and has the advantages of accuracy, stability, high efficiency, high reliability, easiness in networking, timeliness and long-term performance.

The invention discloses a double-shot molding mold for forming a double-face rubber coated product. The double-shot molding mold comprises a fixed mold (1), a movable mold (2), a movable mold carrier plate (21), a movable mold core (22), a slider carrier plate (23), an oil cylinder (24) and a movable cavity sliders (3). The invention adopts a following technical scheme: the movable mold carrier plate is provided with the slider carrier plate; two pairs of movable cavity sliders are slidably arranged between the slider carrier plate and the corresponding front and back walls of the movable mold core; the movable cavity sliders cooperate with four frame core molded surfaces of the movable mold core, are in symmetrical positions, and respectively comprise an A movable bone cavity and an A movable coating cavity, and a B movable bone cavity and a B movable coating cavity; a groove arranged on the movable mold carrier plate is provided with an oil cylinder, which is connected with the movable cavity sliders through a driving rod; and the fixed mold is provided with a pair of fixed bone cavity and fixed cover cavity. The movable cavity sliders alternately replace the movable bone cavity and the movable cover cavity to automatically form double-face rubber coating of a product, so as to reduce cost, improve efficiency and increase qualified rate of injection molding for the frame double-face rubber coated product.

The invention discloses an efficient downlink data transmission method for an upper computer. The method comprises the following steps that: an upper computer initializes a memory allocation structureand writes initialized related information into lower-layer equipment; the upper computer and the lower-layer equipment establish circular queues with depths of M and N for storing corresponding information respectively; during data transmission, upper computer software copies to-be-transmitted data into the c-th sub-block of the large memory block with the serial number a, then the serial numbera, the serial number c and the data length L are integrated into a numerical value R, and the numerical value R is written to lower-layer equipment in a register writing mode; and the lower-layer equipment obtains a physical address ADDR of data storage through calculation, and then initiates DMA operation to obtain data according to the data length L analyzed from the integrated value R. The method provided by the invention has a relatively simple processing flow, relatively sound cross-system portability and relatively high transmission efficiency.

A poem and character matching game system comprises a storage unit, a display unit, an input unit and a processing unit, wherein the storage unit is provided with a question bank, the question bank has a plurality of poem titles and a plurality of candidate characters, the display unit displays an operating picture where a question is set according to the question bank of the storage unit, the processing unit determines whether the poem content corresponding to a poem title is in a preset relation with a candidate character when receiving a command of the input unit that the poem title and the candidate are selected, and makes the candidate character disappear from the operating picture displayed by the display unit if the poem title is in the preset relation with the candidate character.

The invention relates to a monitoring system and method for preventing third-party damage on a gas pipeline. The monitoring system for preventing third-party damage on the gas pipeline utilizes a vehicle-mounted monitoring main rod and a data acquisition sensor. Through video monitoring and field environment information detection, a third-party construction site is monitored in real time on the spot, received video signals of the third-party construction site and the field environment monitoring information are displayed on a visual display platform by using a rear monitoring platform, the construction of the third-party construction site is subjected to situation sensing, a monitoring instruction for dangerous operation possibly endangering the gas pipeline in operation is issued timely,and on-site voice warning and intervention are carried out. Through a visual and graphical user interface, on-site conditions, state information, equipment conditions and the like of a fortified areaare presented, situation perception is strengthened, potential threats are discovered in advance, scientific management, protection and emergency decision are made, and sudden events and emergency events are responded in time through equipment linkage, so that possibility and harm of gas pipeline damage events are reduced.

The invention relates to an ascending aorta covered stent released by a transapical approach. The stent includes a self-expanding covered stent and a conveyor. The self-expanding covered stent includes a corolla region and a trunk. The corolla region includes a corolla and a plurality of metal marking points arranged at the top of the corolla. The corolla is composed of six valve leaflets woven from a nickel-titanium alloy wire, and is anchored to the aortic sinus of a patient. The stent position is adjusted by the metal marking points during positioning to ensure that a coronary artery opening is smooth. The corolla region is an inflow region with the effects of supporting and flow guiding. The trunk is connected and communicated with the corolla region, and comprises a stent membrane anda stent framework. The conveyor comprises a hollow support rod, a hollow guide wire passing through the support rod, an outer sheath arranged at the beginning end of the support rod, a corolla locking device disposed on the support rod and a conical tip disposed at the end of the support rod and developable under X-rays. The stent is inserted through the apex, a release path is straight and short, and the risk of repairing the ascending aorta in the cavity is reduced.

The invention discloses an orthopaedic external fixing bracket connecting rod capable of plastic deformation. The orthopaedic external fixing bracket connecting rod comprises fixed rods, tensioning bolts, bispherical gaskets and a cable, wherein one surface of each bispherical gasket is a raised spherical face and the other surface is a concave spherical face; the fixed rods are two separated rods; internal threads are formed in internal holes at the ends of the fixed rods, wherein a raised spherical face is formed at the part, in contact with the bispherical gasket, of one rod, and a concave spherical face is formed at the part, in contact with the bispherical gasket, of the other rod; the outside diameters of the tensioning bolts are equal to those of the internal holes at the ends of the fixed rods; external threads are formed on the surfaces of the tensioning bolts and are matched with the internal threads in the internal holes at two ends of the fixed rods; the cable adopts a flexible structure; bulbs are formed at two ends of the cable; the diameter of each bulb is larger than the pore diameter of the middle of each tensioning bolt; and one tensioning bolt, one fixed rod, the bispherical gasket, the other fixed rod and the other tensioning bolt are serially connected in sequence through the cable. The connecting rod has advantage that universal plastic deformation of the connecting rod is realized.

The invention discloses an intelligent internet-of-things campus safety monitoring system. The system comprises a monitoring center, a cloud server, an emergency broadcast module, a power operation and maintenance module, a school environment monitoring module and a school intelligent operation and maintenance module. The system has the beneficial effects that the monitoring center is matched with the emergency broadcast module, the power operation and maintenance module, the school environment monitoring module, the school intelligent operation and maintenance module, the school vehicle management module, the school security and protection monitoring module, the school fire alarm module, the student health monitoring module and the student all-purpose card management module; intelligent monitoring operations of emergency broadcasting, electric power operation and maintenance, environment monitoring, intelligent operation and maintenance, vehicle management, security and protection monitoring, fire alarm, student health monitoring and all-purpose card management in a campus are realized, and the defects that a traditional campus monitoring system is single in monitoring mode, incomplete in monitoring and not timely in alarm are effectively avoided. The range and efficiency of safety monitoring in the campus are improved, and the safety of the campus environment is ensured.

The invention provides a power distribution network single-phase earth fault section positioning method and device and terminal equipment, and the method belongs to the technical field of fault positioning, and comprises the steps: obtaining a first attribute parameter of a target power distribution network, and determining a fault section positioning model corresponding to the target power distribution network based on the first attribute parameter and a preset mapping table; and acquiring a second attribute parameter of the target power distribution network, and inputting the second attribute parameter into a fault section positioning model corresponding to the target power distribution network to obtain a single-phase earth fault section of the target power distribution network. According to the power distribution network single-phase earth fault section positioning method and device and the terminal equipment provided by the invention, the attribute characteristics of the power distribution network are considered, so that higher positioning precision is achieved.

The invention relates to the technical field of pollution treatment devices, in particular to an agricultural soil pollution treatment device which comprises a machine body and a base, the machine body is fixedly installed on the base, a processing assembly used for processing soil is arranged on the machine body, and a leaching assembly used for leaching and decontaminating the soil is arranged under the processing assembly. The leaching assembly comprises an outer box and an inner box, the outer box is rotationally installed on the machine body, the outer box and the inner box are fixedly installed, a three-way pipe is arranged in the outer box and is in sliding fit with the outer box, spray heads are symmetrically arranged in the inner box, a hose is connected between one end of the three-way pipe and the spray heads, and a water pump communicated with the three-way pipe is fixedly mounted on the base. By arranging the processing assembly, a screening mechanism, the leaching assembly and a stirring mechanism, agricultural soil is effectively crushed and then cleaned and decontaminated through leaching liquid, and the efficient decontamination effect is achieved in the decontamination work through a simple structure.

The invention provides a control method of vehicle-mounted display equipment. The vehicle-mounted display equipment is applied to an automobile without an instrument panel, the vehicle-mounted displayequipment comprises a controller and a display screen, the controller is connected with a central control screen and an automobile body control system (BCM) in the automobile, reads and analyzes theautomobile information and the automobile body control system (BCM) information displayed by the central control screen, and displays the automobile information and the BCM information on the displayscreen. The control method comprises the following steps: detecting a touch instruction applied to the central control screen; and judging the number of touch points corresponding to the touch instruction, and when the number of the touch points is greater than 1, entering a corresponding operation mode according to the number of the touch points.

The invention provides a pipeline control valve based on an Internet of Things platform and a working method thereof. The pipeline control valve is characterized by comprising a valve mechanism, an STM32 controller, a wireless transmission module and a stepping motor, wherein the STM32 controller, the wireless transmission module and the stepping motor are arranged on the valve mechanism and are electrically connected with one another, an output shaft of the stepping motor is connected with a valve rod outer nut and used for driving a valve rod to perform axial movement, and the STM32 controller is connected with the Internet of Things platform through the wireless transmission module. According to the pipeline control valve, the opening degree and the running state of the valve are reported in real time, meanwhile, the function of intelligent remote control over the pipeline valve is achieved through the Internet of Things, the problems that in the prior art, the opening degree and the running state of the pipeline valve are inconvenient to monitor, the opening degree of the valve is difficult to adjust, and a large amount of manual labor needs to be consumed are solved, and a user can directly access the Internet of Things platform through a mobile phone to monitor and control the valve anytime and anywhere.

The invention discloses a preparation process of a high-plasticity low-temperature hot melt adhesive. The key points of the technical scheme are as follows: the high-plasticity low-temperature hot melt adhesive comprises polyester fibers, TPU, PE and EVA. The preparation process comprises the following operation steps: (1) weaving polyester fiber nets into a base material by adopting a weaving machine; (2) carrying out mixed heating on the PE, EVA and TPU till liquid glue is obtained, and conveying the glue between two layers of base materials in a device by adopting an extruding machine; (3)carrying out controlled extrusion and output on the glue between the base materials by adopting a cold compression roll according to the thickness of the technological requirement, so as to form a plate; and (4) carrying out glue scraping operation on two sides of the plate through a gluing machine, and coating two sides of the plate by adopting the fused TPU, so as to form the high-plasticity low-temperature hot melt adhesive finished product plate capable of realizing adhering of two sides. The hot melt adhesive plate can be operated under normal temperature, and thus harm caused to a personby the process of softening the plate adopting a chemical reagent is avoided.

The invention provides a non-inductive attendance checking method and system based on a dynamic positioning simulation human body movement algorithm, and the method comprises the steps: judging whether the position information of a user is detected in an attendance checking region or not, and if yes, detecting a network signal of the user in the attendance checking region in real time; when the network is changed, the current position information is reported to the attendance system; performing data filtering smoothing algorithm processing on the received position information; based on the data after smoothing filtering, whether the distance between the user position points accords with a preset walking rate is judged according to the user speed; and if yes, making a dot-to-dot linear distance algorithm according to the position point of the user, judging whether the reported position point is within the maximum attendance range, and if yes, entering a clock-in process. The system is applied to the method. According to the invention, the employees can be ensured to get on and off duty accurately and on time, the attendance management efficiency and accuracy can be effectively improved, and the user experience of the user is further improved.

The invention is applicable to the related field of fabricated buildings, and provides a wall positioning device for fabricated buildings, comprising: a base module, the base module comprising a first fixed base and a second fixed base; the first positioning mechanism is arranged on the first fixed base; the first positioning mechanism comprises first supporting plates and first positioning blocks, and the first positioning blocks are in sliding fit with the two sets of first supporting plates through moving boxes correspondingly. The second positioning mechanism is arranged on the second fixed base; the second positioning mechanism comprises a second supporting plate, a second positioning block and a vibration module. The second positioning block is in sliding fit with the second supporting plate through a moving box. And the telescopic assembly is arranged in the moving box, a driving assembly is further connected to the telescopic assembly, the structure is innovative, and adjacent wall bodies can be conveniently positioned and adjusted.

The invention provides a super high-rise building disassembly and change informatization monitoring method and system, and the method comprises the steps: carrying out the monitoring and grading of a building, each monitoring grade comprises at least one floor, at least one floor is selected from each monitoring grade, and a monitoring network is arranged, and comprises a plurality of monitoring units; the floors in all the construction levels are dismantled from top to bottom, and the floors are reconstructed from bottom to top in all the construction levels; in the dismounting and changing process of each construction level, the monitoring network obtains monitoring data through on-site exploration of the monitoring unit and sends the monitoring data to the server; and the server determines an actual measurement position of each piece of monitoring data based on the building three-dimensional model and the positioning information of each monitoring unit, automatically identifies a corresponding visual dynamic module in the building three-dimensional model, and establishes a building informatization monitoring model. The device adapts to rigidity change of the building in the dismantling and changing process, performs targeted measurement, and is low in input cost and high in informatization degree.

The invention provides a system call standard component implementation method. The method comprises the following steps of setting the system call types; dividing the system call codes according to the system call types; dividing the subsystem calling codes according to the system calling codes; determining a system call registration interface standard according to the system call types; determining a subsystem processing interface standard according to the subsystem calling codes; determining a registration interface processing flow according to the system call codes; according to a subsystemcalling code discrimination subsystem, obtaining a discrimination result; and executing a corresponding subsystem processing interface according to the judgment result.