271results about How to "Strong reliability" patented technology

The invention provides a real-time evaluation system for road conditions, and the system is characterized in that the system comprises a plurality of traffic monitoring devices which are used for obtaining the position and speed information of vehicles and the information of surrounding road conditions of the vehicles; a wireless communication module which is used for the wireless transmission of the information obtained by the traffic monitoring devices; and an aggregation terminal module which carries out aggregation according to the information transmitted by the wireless transmission module, and obtains an unobstructive evaluation value of road conditions. The system is advantageous in that a road condition induction device for safe driving detection of a vehicle is applied in the system; the information of the surrounding road conditions of the vehicle is used as parameters for evaluating the unobstructive condition of a road; the system greatly enlarges the evaluation area, improves the evaluation precision, is low in implementation cost, and is easy to popularize.

The invention relates to a carbon dioxide phase change coal seam fracturing device and a utilization method. A barrel is in threaded connection with a valve. The carbon dioxide phase change coal seam fracturing device is characterized in that the two ends of the barrel are in threaded connection with connectors with explosion venting holes, the connectors are provided with cable passing holes, and cable grooves for containing a cable are formed in one sides of the barrel and the two connectors. Due to the fact that the cable is placed in the cable grooves, or one pole of the cable is placed in the barrel, and the barrel is placed on the other pole of the cable, or the whole cable is placed in the barrel, and meanwhile the utilization method is provided, when conveyed into a coal seam drilled hole, the carbon dioxide phase change coal seam fracturing device can be rotated or directly pushed into the drilled hole through a drilling machine, and the situation that the cable is broken during external connecting is avoided; no other special equipment is needed, the depth of the part conveyed in the drilled hole is not limited, and high work efficiency and reliability are achieved; and a screw structure is adopted and directly screwed in a coal body, drilling links are reduced, the screw structure is beneficial to powder discharge and meanwhile is closely embedded with the coal body, gas acting force is improved, the fly stop problem is thoroughly solved, and high reliability is achieved.

The invention discloses a simulated experiment testing method of gas hydrate in a porous medium. The method mainly comprises an experimental and measured data acquiring step and a measured signal analysis processing step, and specifically comprises generating the gas hydrate in the porous medium in a reaction vessel, increasing temperature step by step, decomposing the gas hydrate, acquiring the temperature, the pressure, and the electric and acoustic signals of different test points in a decomposition process, computing the saturation of the gas hydrate according to the temperature and the pressure, and establishing gas hydrate saturation models based on acoustic characteristics, electric characteristics, and acoustoelectric fusion characteristics respectively. The acoustoelectric combined test method achieves safe and radiation-free signals and low system interference, provides an effective detection technical means for the research of the dynamics law of a natural gas hydrate generation/decomposition process and a spatial distribution state change rule of phase materials in the porous medium, and provides a theoretical base for development of new logging technology.

The invention belongs to the food ordering equipment technical field and relates to a food ordering system. The food ordering system includes a plurality of client ends, a server, a plurality of food taking terminals and a plurality of delivery stations; users can conveniently browse a food ordering menu of the server and select appropriate food and pay orders through the client ends; the orders can be delivered to the food taking terminals at the vicinities of the users; the food taking terminals can perform heat preservation on the food according to the types of the food and maintain most appropriate eating temperature for the food; and the users take out the reserved food from the food taking terminals by means of food taking codes which are transmitted to the client ends by the server, so that the users can timely eat the food with appropriate temperature. The food ordering system has the advantages of high convenience and high reliability.

The invention discloses a method for monitoring a driving state of a vehicle based on a vehicle road cooperation technology, which is realized by an LTE-V technology based on roadside units provided on road sides and an onboard unit provided on a vehicle. Multiple groups of roadside units are arranged along the road, and the two groups of roadside units can communicate with each other; the communication ranges of adjacent two groups of roadside units have an overlapped range; and each group of roadside units communicate with the onboard unit in real time through the LTE-V technology. When thevehicle enters the roadside unit monitoring range, the roadside units communicate with the onboard unit in real time, the vehicle position information at different times is calculated, the velocity acceleration information at different times is acquired after calculation, thereby forming vehicle driving state information including the vehicle position, the speed, the acceleration, the time, a driving trajectory. The invention has the advantages that in the process of monitoring the vehicle driving state information, the method can completely avoid the satellite positioning system, and is basedon the vehicle road cooperation technology, and the real-time and reliability are stronger.

The invention relates to the field of micro energy, in particular to a composite type electric generator based on an electromagnetism and friction principle. The composite type electric generator comprises a shell, a top mass block, a top permanent magnet, a friction layer, a metal coil and a bottom permanent magnet, wherein the top mass block, the top permanent magnet, the friction layer, the metal coil and the bottom permanent magnet are arranged in the shell from top to bottom. The shell is of a cylinder shape, the top mass block, the top permanent magnet, the friction layer, the metal coil and the bottom permanent magnet are all cylindrical, and a film wraps the metal coil. The composite type electric generator has the advantages that the composite type electric generator replaces a traditional battery to supply power for a lower-power-consumption electronic component, mutual advantage compensation of an electromagnetic generator and a friction type generator is achieved, energy conversion efficiency of the generator is improved, reliability is high, the separating speed is high, the structure of the component is simplified, and large-scale production is facilitated.

The invention relates to a portable type moving lamp which comprises a lamp holder (1), a battery holder (2) and a cable (3), wherein the lamp holder (1) is internally provided with an LED (light emitting diode) light emitting source (10), the battery holder (2) is internally provided with a battery (21), and the LED light emitting source (10) and a battery (21) are electrically communicated through the cable (3); the lamp holder (1) comprises a shell (11) and a cover body assembly connected to an opening end of the shell (11); the cover body assembly comprises a front cover (13) and a transparent piece (14); the front cover (13) and the shell (11) are connected by adopting threads; the transparent piece (14) is arranged at the inner side of the front cover (13); the transparent piece (14) and the front cover (13) are connected by adopting threads; and a double-thread explosion-proof structure is formed between the cover body assembly and the shell (11). The portable type moving lamp adopts the double-thread explosion-proof structure and is provided with a sealing pad so as to have good explosion proof and water proof functions.

The invention discloses a classification detection method for marine targets in an SAR image based on a convolution neural network, which comprises the steps of first, converting an SAR single-look complex image containing marine targets into a power image, and carrying out quantization on the power image; second, segmenting the quantized power image, adding sample category labels, then constructing a training set, and establishing a data set; third, performing mean removing processing on the training set; fourth, building a convolution neural network model; fifth, training the convolution neural network model by using the training set; and sixth, inputting a slice to be classified into the convolution neural network model to obtain a classification detection result. The classification detection method has the characteristics of high reliability, strong generalization ability, low computational complexity, high practicability, wide application range and the like.

The invention discloses a trimmer for trimming the polished surface of a polishing pad in the chemical-mechanical polishing process, relating to the technical field of polishing equipment. A final performer is driven to rotate by a rotating motor through a synchronous belt, and a swing motor drives a movable cantilever to pull the final performer to swing forwards and backwards radially on the polished surface. A universal joint arranged between a rotatable part and the performer realizes the self-adaptation of a trimming disc besides delivering the torque moment and the lower pressure and ensures that the trimming disc is parallel to the polishing pad. The trimmer is forced to jiggle up and down by adjusting the pressure of a cylinder so as to adapt to the jumpiness of the polishing pad in rotation and keep the lower pressure within a certain range, and the trimming disc is lifted up to be away from the polishing pad when not in trimming. With the advantages of compact structure as well as high smoothness and reliability, the trimmer for trimming polishing pads can be widely applied to precision polishing equipment.

The invention discloses a dialogue topic partitioning method and system based on the context correlation. The method comprises the steps of collecting multi-dialogue data and performing random sampling to obtain a training data set; performing vectoring processing on the training data set to obtain a corpus vector space corresponding to the training data set; arranging the corpus vector space into a sentence sequence; calculating the correlation between adjacent sentences; according to the correlation between the adjacent sentences, recognizing the topic boundary of the multi-dialogue data to form a topic partitioning model, and achieving topic partitioning of the multi-dialogue data. The topic partitioning method has the advantages of being high in testing accuracy, high in reliability and stable.

The invention provides a method for maintaining an embedded software module of a spacecraft. The method comprises the following steps: (1) designing and realizing flight software of the spacecraft; (2) designing and realizing a modified module or function; (3) completing the maintenance of the embedded software module or function, exactly, establishing a mapping table for storing entry addresses of all modules (or functions) of the flight software, and setting an address table as a default state when the software is solidified; storing executing codes of the modified modules (or functions) into a memory space when the modules (or functions) need to be modified in the future; and simultaneously modifying a address mapping table, and changing the orientation of the modules (or functions) which is not modified to the entrance of the modified modules (or functions), thus the change of the invoke relationship can be realized and the purpose of modifying or maintaining any module (or function) can be achieved.

The invention relates to a method and system for determining an optimal path in SDN (Software Defined Network). The SDN comprises an SDN controller, an access equipment and an SDN switch. A link is detected by the SDN controller, the access equipment and the SDN switch, so as to determine the optimal path of the service in the SDN. The SDN controller comprises an SDN communication module, an SDN communication extension module, a detection module, a topology module, a service module, a service path computing module and other extensible service modules; the SDN switch comprises a standard SDN switch function module, an SDN communication extension module and a detection module; the access equipment includes a detection module. By adoption of the invention, various kinds of scenes can be adapted; and aiming at different scenes, one optimal path can be selected from a plurality of presetting optimal path algorithms.

The embodiment of the invention provides a micro-earthquake positioning method and device. The method comprises the steps of constructing an initial velocity model representing formation velocity, utilizing the initial velocity model for positioning, and obtaining the initial position of a micro-earthquake event; according to the three-dimensional distribution of the initial position of the micro-earthquake event, calculating the enveloping surface of the micro-earthquake event, wherein space inside the enveloping surface is a fracture belt; obtaining the velocity equivalent of the fracture belt, wherein the velocity equivalent of the fracture belt can represent real-time changes of the formation velocity in the fracture process; according to the velocity equivalent of the fracture belt, and the spatial distribution of the fracture belt, updating the initial velocity model, and obtaining the updated velocity model; utilizing the updated velocity model for positioning, and obtaining the position of the micro-earthquake event. According to the micro-earthquake positioning method and device, the updated velocity model takes the factor of the real-time changes of the formation velocity in the fracture process into consideration, and the result of positioning through the updated velocity model is higher in accuracy and reliability.

The invention is the controlling system of the mixed dynamic electric automobile assembly. It transmits the speed signal of the cell of measuring the speed to the main controller whose controlling signal is transmitted to the accumulator through the drive module and the charger. The controlling signal of the main controller is transmitted to the charger through the temperature controller. The voltage, the electricity and the temperature signal of the accumulator is transmitted to the main controller through the detection model. The setting signal is transmitted to the main controller , the data signal end of the CAN outer bus connects with the main controller. The controlling signal of the main controller is transmitted to the transducer through the module of the numeral model .It transmits the frequency signal of the transducer to the electromotor. The controlling system of the dynamic dynamoelectric automobile assembly works according with the flow. The invention is provided with the easy circuit, the strong reliability, the high intelligent degree, the steady moving and the fast response.

A storage system is provided. The storage system comprises a storage media, a storage controller and a host. The storage controller is connected to the storage media. The host is connected to the storage controller, and performs a physical resource management algorithm for managing a physical resource of the storage media, so as to output at least a media operation command to the storage controller. The storage controller performs the media operation command to manage the storage media. A storage management method is also provided.

The invention discloses a method for autonomously monitoring the integrity of monitoring stations of a global navigation satellite system augmentation system, which comprises the following steps: receiving a satellite ephemeris and initial satellite data respectively by using each monitoring station of the GNSS augmentation system; transmitting the initial satellite data of each monitoring station to a master control station through a communication network; constructing a single-satellite multi-monitoring-station error equation by using the master control station according to the precise satellite ephemeris and the initial satellite data of each monitoring station; calculating a weight matrix according to different elevating angles of each monitoring station relative to satellites; establishing multi-satellite multi-monitoring-station errors and the weight matrix thereof; constructing a normal equation according to the error equation and the satellite weight matrix and resolving the normal equation according to a least square method; and performing gross error test and gross error identification according to corresponding residual errors so as to realize the autonomous integrity monitoring of the monitoring stations. Through the method, the monitoring stations which may have the errors can be eliminated and the reliability of the whole GNSS augmentation system is improved.

The invention relates to a pneumatic actuator. The pneumatic actuator comprises a cylinder block, an actuating box body and a spring cylinder block which are connected with one another, wherein the cylinder block is provided with an air inlet and an air outlet; a piston in the cylinder block is connected with a spring seat in the spring cylinder block through a piston rod which passes through the actuating box body; a return spring is arranged outside the spring seat; the entire piston rod is formed in the middle through butt joint of an actuating block; a rolling shaft is inserted into the actuating block; a roller is sleeved outside the end part of the rolling shaft and matched with a fixed shift fork on an output shaft in the actuating box body; a guide rod which is parallel with the piston rod is arranged in the actuating box body; and the actuating block is provided with a guide hole and is in clearance fit with the guide rod through the guide hole. The defects of easy deformation of the piston rod and the piston and air leakage of the cylinder caused by an ordinary pneumatic actuator in a working process in the prior art are overcome. Due to specific design, the actuating block is matched with the guide rod through the guide hole and linear and stable running is kept. The pneumatic actuator has the advantages of compact structure, high reliability and long service life.

The invention discloses a method for directly analyzing the Android package (APK) file information of an Android installation file on a computer. The method comprises the following steps of: analyzing the software information of an APK file; and analyzing the identification information of a manufacturer. In the step of analyzing the software information of the APK file, the APK file is decompressed in a Zip mode, an Android Manifest.xml file which is acquired by decompression is subjected to inverse operation, and an original extensible markup language (XML) file which is obtained by inverse operation is analyzed. In the step of analyzing the identification information of the manufacturer, the APK file is read in a JarFile mode, all elements are traversed from META-INF, and each element is operated in a JarEntry mode to acquire a digital certificate of the element. By the method, the APK file is directly analyzed on the computer, so the method is easy to operate, the operation capacity of the computer is fully utilized, batched and concurrent analysis of the APK file information can be realized, and the analysis computation efficiency of data information is greatly improved.

The invention discloses a mechanical door-opening lift car lock safety mechanism. The mechanical door-opening lift car lock safety mechanism comprises a spinning movement mechanism, a linkage shifting block and a stop block, wherein an actuating rod is arranged on the spinning movement mechanism in a horizontal extending mode; the upper portion of the linkage shifting block is fixed to the bottom of the outer side wall of a car door; the lower end of the linkage shifting block downwards extends to be as high as the actuating rod; the stop block is disposed at the lower end of a hoistway door sill, and a long strip groove is transversely designed in the center of the stop block; during opening of the car door, the actuating rod spins outwards, and the free end of the actuating rod gradually spins to enter the groove till the free end is stopped against the inner side wall of the groove; during closing of the car door, the linkage shifting block shifts the actuating rod to spin inwards, and the free end of the actuating rod is gradually separated from the groove. According to the mechanical door-opening lift car lock safety mechanism, injury accidents caused by accidental ascending or descending during door opening and closing of a lift car can be effectively avoided.

The invention relates to a high-voltage DC transmission line lightning interference recognition method based on S transform. The method is technically characterized by comprising the following steps:1, voltage at a protection element connected with each pole of the DC transmission line is acquired in real time at a system rectifier side protection and mounting place; 2, after the voltage acquiredin the first step at the protection element is filtered, a voltage fault component 5 ms after fault is extracted, and line mode voltage is obtained through calculation; and 3, S transform is carriedout on the line mode voltage at the system protection and mounting place to obtain a complex-time frequency S matrix, the S transform transient energy and the GL under a frequency band below 100Hz andthe S transform transient energy and the GH under a frequency band above 200Hz are solved, the ratio k of the two is calculated, the k value and a lightning interference recognition criterion are compared, and whether the intraregional interference is lightning interference or intraregional fault can be recognized accurately. The lightning interference can be recognized accurately, the reliability is strong, the action speed is quick, the recognition is accurate, and engineering realization is easy.

The invention relates to a method for analyzing the wiring correctness of a double-winding conventional transformer single-switch differential protection current transformer (CT), in particular to an analysis method for analyzing and judging whether the wiring of the CT of a double-winding conventional transformer single-switch differential protection circuit in an electric system is correct or not, and giving an error position and an error type. In order to solve the problems that the wiring error condition of a relay protection circuit is artificially judged in a time-consuming and labor-consuming mode, and the requirement on working personnel is high at present, the invention provides a method for analyzing the wiring of the conventional transformer differential protection circuit of the electric relay protection circuit, which has high judgment analysis reliability and is safely and simply used and convenient to operate.

The invention discloses a method and a system for forecasting tunnel geology. The method comprises steps as follows: surveying the tunnel geology with a seismic reflection method; determining a suspicious geological section according to a result surveyed with the seismic reflection method; surveying the determined suspicious geological section with an advanced drilling method, and obtaining geological analysis data of the suspicious geological section; and performing geological forecast according to the geological analysis data of the suspicious geological section. According to the method and the system, the potential safety hazard problem during tunnel construction due to the fact that the tunnel geological condition cannot be accurately forecasted with a single tunnel geological survey method is solved, and the forecasting practicability is improved.

The invention discloses an image collection system and method for a vehicle-mounted terminal, so as to improve the quality of an image collected by the vehicle-mounted terminal. The system comprises acontroller, multiple cameras, a light sensor and an encoder, whereinthe multiple cameras, the light sensor and the encoder are connected with the controller respectively, and the controller is used for receiving the illumination intensity of a current environment from the light sensor, selecting one camera adapted to the illumination intensity from the multiple cameras to take as a target camera,and when a current working camera is not the same as the target camera, turning on the target camera and turning off the current working camera, and taking the target camera as the working camera tocollect an image, and is used for receiving the image collected by the working camera and sending a received image to the encoder; and the encoder is used for encoding the received image and transmitting an encoded image.

The invention discloses a steel plate oddment monitoring method which is applied in a steel plate oddment monitoring system. The method includes that a server receives layout results from a layout system and determines whether the layout results contain oddment information; if so, a cutting site management terminal acquires the layout results from the server according to production plan, an operator prepares material according to plate blank information, a numerical-control cutting platform cuts the prepared plate blanks according to a numerical-control program and layout images, the cutting site management terminal sends oddment information to a RFID reader after cutting of the numerical-control cutting platform is completed, the RFID reader writes the oddment information into a RFID and embeds the RFID into the oddment, and the operator stores the oddment with the embedded RFID into a plate blank bin and sends storing position of the oddment to the server through a management terminal of the plate blank bin. By the aid of the method, steel plate oddment monitoring and management can be realized effectively, relevant enterprises can utilize raw material effectively, material utilization can be improved, and production cost can be reduced.

The invention discloses a COB soft foundation module, an RFID electronic tag and a manufacturing method thereof. The RFID electronic tag consists of a massive soft foundation and a COB soft foundation module which are manufactured independently, wherein the massive soft foundation consists of an RFID tag antenna and a soft insulated base material bearing the RFID tag antenna; the COB soft foundation module comprises a bridging metal film line, a soft insulated base material, an RFID chip and a bonding projection; the RFID chip and the bridging metal film line are fixedly connected through an anisotropic conducting adhesive; and the RFID tag antenna and the bridging metal film line are in electrical connection by bridging adhesion. By adopting a split binary structure modularized pre-packaging mode, the disadvantage that the multi-item production of the RFID electronic tag in a conventional inverse packaging process has poor consistency is well overcome, and the COB soft foundation module has the advantages of strong flexibility and reliability, more favorable realization of serialized and diversified production on a large scale, low production cost, high consistency, micromation and the like.

The present invention is applicable to the field of sports equipment, and provides a high-precision positioning system, including: UWB positioning tags, used to transmit pulse radios; multiple positioning base stations, used to receive pulse radios transmitted by UWB positioning tags, and each positioning base station Determine the distance from the UWB positioning tag to the positioning base station according to the received pulse radio; the positioning server is used to determine the position information of the UWB positioning tag according to the distance from the UWB positioning tag to each positioning base station; and the map server receives the position information of the UWB positioning tag. , and display the location information of the UWB positioning tag on the map. Wherein, the overlapping coverage area of ​​multiple positioning base stations is provided with a positioning map area for positioning UWB positioning tags. A high-precision positioning system provided by the present invention uses a UWB positioning tag to transmit a pulse radio, and the positioning base station receives the pulse radio and then locates the UWB positioning tag, which can realize regional high-precision positioning, high positioning accuracy, and reliability Strong.

The invention discloses an electric vehicle permanent-magnet synchronous motor stator asymmetry fault diagnosis method. Fault diagnosis on a permanent-magnet synchronous motor is carried out and the severity of a fault occurring in the motor is determined by fusing wavelet transform and a support vector machine system. A faulty resistor is connected in series to any phase to form a faulty phase; a motor stator three-phase winding current signal is collected; the collected current signal is processed by means of wavelet de-noising, and the characteristic quantity of the processed signal is extracted; the extracted characteristic quantity is input to a support vector machine system, and the output of the support vector machine system is set; and finally, the stator asymmetry fault of the permanent-magnet synchronous motor is diagnosed, and the severity of the stator asymmetry fault is determined. The electric vehicle permanent-magnet synchronous motor stator asymmetry fault diagnosis method of the invention has the advantages of accurate and effective diagnosis result, high diagnosis accuracy, and high operability.

The invention discloses a warning device for indicating road inspection well cover theft. The warning device comprises an inspection well cover position sensor, a photosensitive sensor, a main controller, an LED (Light Emitting Diode) display module, a sound alarm module, a communication module and a power supply. The information of the stolen inspection well cover is detected by the position sensor and the photosensitive sensor and is transmitted to the main controller, a main processing unit starts the LED display module and the sound alarm module through a program, and the communication module is connected according to the actual need to send out alarm information to a monitoring center. By adopting the technical scheme, the warning device for indicating the road inspection well cover theft can detect the information of the stolen road inspection well cover in time, can judge that the road inspection well cover is stolen at daytime or nighttime through the photosensitive sensor and can adopt photoelectric or sound prompt alarm information to provide the alarm information for a remote alarm device in time.

The invention discloses an intelligent front-end system for a transmission line on-line detection system. The intelligent front-end system comprises an intelligent sensor terminal and an intelligent gateway, wherein the intelligent sensor terminal comprises a danger level grading module, a data acquisition and transmission period real-time regulating module used for regulating according to a result evaluated by the danger level grading module, and an alarm module; the intelligent gateway comprises a data acquisition module used for receiving detection data sent by a sensor arranged on a transmission line, and a danger level estimation module used for calculating a grading threshold value of data according to a data danger level evaluation mathematical model to obtain a danger level grading threshold value and sending a command of setting a threshold value to a corresponding sensor terminal, and an alarm module used for sending an alarm signal when the data danger level is high; results of the data danger level evaluation model are in a threshold value setting mode; and danger levels are high, intermediate and low danger levels. The intelligent front-end system has the advantages of good timeliness, high reliability, low use cost and convenience for maintenance.

The invention relates to agricultural intelligent equipment technology, in particular to a water stress control irrigation system and a data calibration method of the water stress control irrigation system. The water stress control irrigation system is used to provide water to a cultivation device. The cultivation device includes a head device and an irrigation device. The head device includes a data acquisition unit, a stress irrigation control unit and a water supply control unit. The data acquisition unit is used to collect water content and total irrigation water of the cultivation device. The stress irrigation control unit is used to calculate needed irrigation volume in accordance with data information collected by the data acquisition unit and upper limit value and lower limit value of default irrigation amount. The water supply control unit is used to control irrigation time and irrigation amount of irrigation device, according to the needed irrigation volume. The data acquisition unit can constantly monitor the water content of the cultivation device and is with data calibration algorithm to get optimal irrigation amount. The data calibration method of the water stress control irrigation system is accurate. The water stress control irrigation system changes single measurement mode and meets the need of water stress experiments of different gradients.