22results about How to "Facilitate failure analysis" patented technology

The invention relates to the technical field of unmanned aerial vehicle path control, and particularly discloses an unmanned aerial vehicle power grid inspection operation path planning method based on Beidou navigation, and the method comprises the steps: obtaining the historical inspection contribution value of each region of a power grid, and combining the actual operation state contribution value of each region of the power grid; determining an unmanned aerial vehicle power grid inspection operation priority value of each region of the power grid, determining an unmanned aerial vehicle power grid inspection operation initial path, determining an unmanned aerial vehicle power grid inspection operation height of each region of the power grid, and obtaining obstacle position coordinates of a connection path of each region of the power grid based on Beidou navigation; according to the method, the problems that a traditional path planning method cannot meet efficient and intelligent routing inspection requirements and is insufficient in dynamic optimization capability in combination with real-time data are solved, the routing inspection effectiveness is improved, and the routing inspection efficiency is improved. The flight risk of the unmanned aerial vehicle is reduced and the inspection task is smoothly carried out.

The invention relates to an intelligent power supply switching method suitable for a power station, and aims at solving the problems that an existing spare power automatic switching device is low in response speed, single in starting condition, incomplete in switching-on logic and the like. According to the invention, parameters such as voltage, frequency, phase and current of the power supply are monitored in real time, and various switching logics such as rapid closing, synchronous capture closing, residual voltage closing and long delay closing are combined, so that rapid and safe switching between the main power supply and the standby power supply is realized. The system supports various triggering modes such as manual starting, protection starting, voltage loss starting, reverse power starting and non-current starting, and can adapt to complex scenes such as single-bus segmentation, single-bus and isolated network operation. Through an embedded hardware platform, a DSP + ARM + CPLD architecture is adopted, the system has efficient data acquisition and logic operation capability, and the switching time can be shortened to be within 10 milliseconds. Meanwhile, multiple safety mechanisms such as overcurrent protection, reverse power protection and decoupling protection are provided, and misoperation and parallel operation risks in the switching process are avoided.

The invention discloses a communication equipment assembly accessory quality inspection device, and belongs to the technical field of accessory detection, the communication equipment assembly accessory quality inspection device comprises a support cylinder mounted on the ground through a support member and a rotary inner core rotatably arranged in the support cylinder, the top end of the support cylinder is provided with a discharge port, and the discharge port is fixedly connected with a discharge pipe; three discharge ports are formed in the bottom end of the supporting cylinder, a crack recovery box, a damp recovery box and a good product recovery box are sequentially arranged at the three discharge ports clockwise, a megohmmeter is fixedly connected to the surface of the supporting cylinder, and a power connection assembly is arranged on the side wall of the supporting cylinder. According to the invention, the supporting cylinder, the rotating inner core and the power connection assembly are arranged, and the rotating inner core can drive the to-be-measured zinc oxide lightning arresters to pass through the grounding assembly one by one, so that the megohmmeter can automatically realize the measurement function of the insulation resistance of the to-be-measured zinc oxide lightning arresters, and the measurement of the resistance of the to-be-measured zinc oxide lightning arresters can be streamlined; and the measurement efficiency is obviously improved.

The invention discloses a power supply detection method and device of a server and a storage medium, and relates to the technical field of servers, whether an alternating current input voltage is overvoltage or undervoltage is preliminarily judged according to the alternating current input voltage of a power supply module at the current moment, and under the condition that the alternating current input at the current moment is not overvoltage or undervoltage, the overvoltage or undervoltage of the alternating current input module is detected. Further continuously judging whether the alternating current input voltage in a preset time period after the current moment is taken as a starting point is normal or not; and the accuracy and the reliability of a final fault judgment result are ensured through a two-time judgment process. Whether the power module breaks down or not can be quickly and directly reflected on the change of the alternating-current input voltage, so that whether the power module breaks down or not can be determined by detecting the alternating-current input voltage input into the power module in real time, the whole detection method is high in response speed, the fault can be processed in time, and the fault detection efficiency is improved. The real state of the server in the downtime moment can be collected, and subsequent fault analysis is facilitated.

The utility model relates to a kind of three-phase voltage transformers of compartment, including shell and first, second single-phase mutual inductor, the top of shell is arranged three-phase, each phase includes a root of fusing tube, shell also includes three internal fusing tubes, the inner wall of the tube bottom of each internal fusing tube is arranged with spring contact finger, fuse is placed in tube, second nut is installed in tube mouth, the primary winding of first, second single-phase mutual inductor is electrically connected with first to fourth electrically conductive pole respectively, define three fusing tubes as first to third fusing tube, the other end of first electrically conductive pole is electrically connected with the spring contact finger of first fusing tube, the other end of second electrically conductive pole, third electrically conductive pole is electrically connected with the spring contact finger of second fusing tube, the other end of fourth electrically conductive pole is electrically connected with the spring contact finger of third fusing tube. Utilize a kind of three-phase voltage transformers of compartment designed by the utility model, can solve the problem of traditional three-phase voltage transformer common fusing tube, compact structure, increased operation and maintenance difficulty, reduced replacement efficiency.

The embodiment of the invention provides an alarm correlation analysis method and device and computer equipment. The method comprises the steps of obtaining a target alarm according to a preset sliding time window; projecting the target alarm on each predetermined dimension to obtain a feature value of the target alarm on each dimension; performing screening convergence on the target alarms according to the characteristic values to obtain an associated alarm set; and determining a root cause alarm according to the main dimension of each associated alarm in the associated alarm set. According to the method, the target alarms with the incidence relation can be determined through the feature values of the target alarms in all dimensions, and the incidence alarm set is obtained; according to the main dimension to which the alarm belongs, the root cause alarm in the associated alarm set is positioned, so that the identification and positioning of the associated alarm and the root cause alarm from a huge number of alarms are realized, and the interference of irrelevant and redundant alarms can be reduced; operation and maintenance management and fault analysis are facilitated, the time consumed by operation and maintenance personnel for fault processing is shortened, and the adverse effect of faults on services is reduced.

The application discloses a high-frequency ignition online detection method based on an event camera, belongs to the technical field of industrial visual detection and event visual perception, and utilizes the event camera to asynchronously collect microsecond-level brightness change event streams, automatically locates multiple-point ignition ROIs through spatial event density combined with geometric constraint and periodic consistency constraint after preprocessing, constructs time event density curves in each ROI, accurately extracts ignition intervals and completes counting based on main peak detection and local half-peak boundary, and determines missing point abnormities in combination with a preset ignition timing, and determines multiple-point abnormities in combination with a single-ROI periodic peak value, a short-time simultaneous lighting quantity and interval overlap degree in multiple dimensions. The application has high detection accuracy, good real-time performance and strong anti-interference capability, and is suitable for online monitoring of high-frequency transient working conditions of an aero-engine ignition device and various multiple-point sequentially triggered ignition devices.

The present application discloses a fault handling method and system based on network alarm association, the method includes: obtaining alarm information data by performing information identification based on a number of acquired network alarm information within a preset time period, and each network alarm information is associated with an alarm identification identifier; performing data preprocessing on the alarm information data to obtain a number of different target alarm information; sending different target alarm information to a preset alarm association judgment model to obtain the associated judgment information corresponding to different target alarm information according to the alarm identification identifier; performing fault identification and judgment on different target alarm information based on the associated judgment information to obtain the corresponding business interruption judgment result; generating a number of fault handling work orders based on a number of different target alarm information, associated judgment information and corresponding business interruption judgment results, and sending the number of fault handling work orders to the corresponding maintenance user terminal according to the preset fault dispatching rules. The present application has the effect of improving the fault handling efficiency of network alarms.

The utility model belongs to the field of power equipment, and relates to an automatic voltage regulating and data reporting voltage regulator, which comprises an acquisition monitoring module, a core unit, a voltage regulating module, a characteristic signal transmitting module, a Bluetooth module and a 4G module, and is characterized in that the core unit is electrically connected with the acquisition monitoring module, the voltage regulating module, the characteristic signal transmitting module, the Bluetooth module and the 4G module respectively; the characteristic signal transmitting module comprises an optocoupler isolator U1, a triode Q2, resistors R1 / R2 / R3 and Rd, a rectifier bridge D1 and an MOS tube Q1, and the core unit controls the on-off of the triode Q2 by controlling a pin 2 of the optocoupler isolator U1, stably controls the magnitude of current between L and N, ensures that the magnitude of current is constant, and does not have interference current. According to the utility model, fault data and a reporting mechanism are accurately recorded, fault analysis and processing are facilitated, and maintenance response time is shortened through automatic fault reporting.

The present application relates to servo motor production test technical field, especially relates to a kind of encoder detection method, device and storage medium, the method comprises: establishing the design requirement parameter library stored according to motor model;Connecting motor to be detected and calling corresponding preset design index;Control motor low-speed no-load rotation;Based on the same hardware timer, encoder A / B / Z signal and hall U / V / W signal are synchronously collected, and synchronous timing data is generated;Synchronous timing data is judged effectively;Actual encoder line number, actual electrical phase and actual hall phase are calculated;Actual parameter is compared with preset design index item by item, all satisfy when judging qualified, any item does not satisfy when judging unqualified and recording deviation.The present application can improve servo motor encoder detection efficiency and phase determination accuracy, adapt to multi-model mixed-line production, and realize detection process traceability.

The invention provides a method for determining rotating speed data of moving equipment and a related device, and the method comprises the steps: obtaining a motion signal of a preset part in the moving equipment, and the motion signal at least comprises a vibration signal and / or a key phase signal; under the condition that the motion signal at least comprises a key-phase signal, when the key-phase signal meets a first preset condition, determining rotation speed data of the moving equipment based on the key-phase signal; and under the condition that the motion signal does not comprise a key phase signal but at least comprises a vibration signal, when the vibration signal meets a second preset condition, determining rotation speed data of the motion equipment based on the vibration signal. According to the embodiment of the invention, by means of double supplementary calculation of the key phase signal and the acceleration vibration signal, the rotating speed data can be calculated through any one of the key phase signal and the acceleration vibration signal, the calculation result can be subjected to double verification, the rotating speed value at the current moment can be determined, the rotating speed difference at the current moment can be output, and therefore whether the rotating equipment operates stably or not is judged.

The present invention relates to a device for detecting wireless charging equipment and a corresponding method, wherein the device adopts a separated main control module and a wireless charging power receiving module, can effectively realize the detection of wireless charging equipment, has the characteristics of high temperature resistance and high voltage resistance, and has a long service life. The main control module in the device controls the device during the detection process, and can more conveniently perform fault analysis on faults occurring during the inspection process. The device for detecting wireless charging equipment and the corresponding method of the present invention have the characteristics of easy operation, high reliability, and long service life, and can well inspect wireless charging equipment.

The invention provides a pretreatment method of a sample. The pretreatment method comprises the following steps: S1, providing a sample with a target structure on the surface; s2, forming a flowing protective layer on the surface of the sample; s3, the sample is made to revolve around the first rotation center, meanwhile, the sample is made to rotate, so that the protective layer is evenly distributed on the surface of the sample, and gaps in the target structure are fully filled with the protective layer; and S4, curing the protective layer. According to the pretreatment method of the sample, the protective layer on the surface of the sample can be distributed more uniformly in all directions, generation of bubbles is reduced, the filling rate of the protective layer is improved, and then great convenience is brought to failure analysis of the sample.

A control device for multiple mine hoists relates to the technical field of mine hoist control and comprises an operation table composed of a control unit, a PLC (programmable logic controller) unit, a touch screen and a router, the PLC unit is connected with the control unit and receives signal instructions sent by the control unit, and the PLC unit is connected with a plurality of hoist master control systems through the router; the PLC unit is further connected with a touch screen used for displaying operation state parameters of all the elevator main control systems. According to the device, one operation table is remotely operated so as to control the running state of a plurality of elevator main control systems, an operator does not need to frequently move and operate among a plurality of elevators, and the working efficiency is improved; operators work in a centralized control center, the influence of severe environment is avoided, field operation is reduced, the number of elevator operators is reduced, and high economic benefits are achieved.

The utility model discloses a wafer inlet and outlet position detection device for an ion implantation machine in the technical field of semiconductor manufacturing equipment, which comprises a sensor support fixed above a lifting platform, a central groove is arranged on the surface of the sensor support, a plurality of detection grooves are distributed on the peripheral side of the central groove, and the detection grooves are communicated with the lifting platform. A plurality of displacement sensors matched with the detection grooves are fixed to the sensor support through a mounting frame, each displacement sensor is located above the detection grooves, and the mounting frame comprises an L-shaped main mounting frame and an L-shaped auxiliary mounting frame mounted on one side of the L-shaped main mounting frame; and the displacement sensor is installed on the surface of the L-shaped auxiliary installation frame through a sensor installation support, the displacement sensor is electrically connected with a PLC control cabinet, and the PLC control cabinet is electrically connected with the machine table and the touch screen. According to the utility model, tiny deviation of the wafer in the transmission process can be monitored in real time and alarm is triggered, so that collision between the wafer and a manipulator or a sealing door is avoided, and production safety and equipment stability are guaranteed.

The present invention relates to the technical field of unmanned aerial vehicle path control, and specifically discloses a path planning method for unmanned aerial vehicle power grid inspection operations based on Beidou navigation. The method comprises: obtaining historical inspection contribution values ​​of various power grid areas, combining actual operation status contribution values ​​of various power grid areas, determining priority values ​​of unmanned aerial vehicle power grid inspection operations of various power grid areas, determining initial paths of unmanned aerial vehicle power grid inspection operations, determining heights of unmanned aerial vehicle power grid inspection operations of various power grid areas, obtaining obstacle position coordinates of connection paths of various power grid areas based on Beidou navigation, determining detour plans for unmanned aerial vehicle power grid inspection operations of connection paths of various power grid areas, and correcting the initial paths of unmanned aerial vehicle power grid inspection operations. The present invention solves the problem that traditional path planning methods can no longer meet the needs of efficient and intelligent inspections, combines the problem of insufficient dynamic optimization capabilities of real-time data, improves the effectiveness of inspections, reduces the flight risks of unmanned aerial vehicles, and ensures the smooth progress of inspection tasks.

The application provides a kind of support extended vehicle-mounted multi-channel camera simulation method and system.Method includes: obtaining specified picture or video data, generating the original picture data of each frame, and according to the format of PPI, it is packed into PPI data format, and the ECC and CRC data required for each line are calculated;According to the resolution size of each camera, the required simulation simulation platform memory space is generated;The generated PPI, ECC and CRC data are injected into the memory space;According to the output state of the platform, update the data in the memory space to the next frame data during frame blanking;Using the PPI format module of the platform, according to the configuration of each channel, the data is divided into different Lane according to PPI format, and is output to CSI2 HOST according to PPI format.The application can simulate different types of cameras and their parameters.

This invention relates to a test device and method for testing the leakage of metal seal rings in turbochargers, belonging to the field of turbocharger performance testing technology. It includes a simplified turbine housing, a simplified bearing housing, bolts, a pressure plate, and a housing. The simplified turbine housing and the simplified bearing housing are mated to form a pressing surface. The dimensions, roughness, seal ring installation position, and heat shield structure of the simplified turbine housing are consistent with the turbocharger under test. The seal ring installation position is consistent with the turbocharger. The bolts are tightened to the turbocharger installation torque. The housing is fitted over the pressure plate and bolts, and its bottom is pressed against the simplified bearing housing. The junction is welded with a circumferential weld to form a sealed cavity with no leakage except at the test point. The simplified turbine housing is provided with sensor holes and measurement holes. This invention simulates the actual installation conditions of the turbocharger, eliminates interference from non-seal ring leakage, achieves accurate measurement of leakage performance, and prevents secondary damage or scratches to the seal ring during disassembly after the test.

The invention discloses an unmanned aerial vehicle remote control signal amplifier which comprises an input antenna, a filter, a signal amplifier, an output antenna, an automatic gain controller and a control and monitoring module. A signal output end of the input antenna is connected with the filter, a control signal transmission end of the filter is connected with the automatic gain controller, a signal output end of the filter is connected with the signal amplifier, a data transmission end of the signal amplifier is connected with the control and monitoring module, and the control and monitoring module is connected with the signal amplifier. And the signal output end of the signal amplifier is connected with the output antenna. The amplifier can automatically adjust signal gain and monitor signal intensity and chip temperature in real time, and has a remote monitoring function to improve stability and reliability of remote control signals of the unmanned aerial vehicle.

The utility model relates to a kind of connecting structure of electronic water pump for vehicle, it includes pump head, pump body and elastic collar;Pump head is equipped with pump head collar groove, bevel chamfer, positioning column and pump head dismounting groove;Pump body is equipped with pump body collar groove and positioning hole;Collar opening both sides are equipped with collar dismounting hole;Pump head dismounting groove is located in pump head bottom and is the slot with opening downward, simultaneously the opening of the collar and two collar dismounting holes are located in pump head dismounting groove;Collar can be prepositioned in pump body collar groove, and after shrinking along bevel chamfer when pump head is pressed in, it is bounced into pump head collar groove, realize axial fixation by being clamped in pump head collar groove and pump body collar groove simultaneously;Positioning column and positioning hole cooperate to realize radial positioning.The utility model is put into small equipment, greatly improves production rhythm, and it is convenient to disassemble and repair, effectively reduces manufacturing cost and maintenance cost, improves product market competitiveness.

The embodiment of the invention provides a power supply monitoring device and method for a solid state disk, and the device comprises a sampling chip, a control chip, a battery, a power supply chip, a storage chip, a solid state disk interface male head, a USB expander and a USB interface which are assembled according to a structure consistent with that of the solid state disk, the monitoring module is used for monitoring multi-path solid state disk power supply conditions; the control chip is used for receiving and determining whether the multi-path solid state disk power supply is abnormal or not according to the condition of the multi-path solid state disk power supply, and determining a power supply abnormal result; the storage chip is used for receiving and storing the power supply condition of the multi-path solid state disk board and the power supply abnormity result, and the portable low-cost power supply monitoring equipment of the solid state disk is consistent with the solid state disk in structure and is used for monitoring the power supply of the solid state disk. Therefore, the power supply monitoring equipment of the solid state disk can monitor the power supplies of a plurality of solid state disks in an insertion mode, and convenience is provided for single-board debugging and fault analysis of the solid state disks.

The invention discloses an unsealing method and application of a copper bonding wire semiconductor device. The unsealing method comprises the following steps of: 1, confirming a chip position of the device, an area to be unsealed and a material of a bonding wire; step 2, after determining that the material of the bonding lead is copper, thinning the package of the device in the area to be unsealed through a laser unsealing machine to form an exposed area; 3, a chemical reagent is prepared, the chemical reagent is formed by mixing concentrated nitric acid, a copper nitrate saturated solution and a copper material, and the chemical reagent is left to stand and stored in a dark place; 4, dropping the chemical reagent on the exposed area until the chip area is completely exposed; and 5, carrying out surface cleaning and drying on the unsealed device. By means of the mode, corrosion to the copper bonding lead can be reduced while the plastic packaging material is removed completely, and subsequent chip failure analysis is facilitated.