3688results about How to "Avoid economic loss" patented technology

The invention discloses a system and a method for preventing pedestrians from collision based on vehicle-road cooperation. The system comprises a vehicle-mounted module, a road-side module, a vehicle-road communication module, a central processing module and a display and control module. Information interaction between the road-side module and the vehicle-mounted module is realized by use of the vehicle-road communication module, and the data of the road-side module and the vehicle-mounted module both are sent to the central processing module; the central processing module is used for fusing and processing multi-source information and sending an instruction to the display and control module to execute a collision preventing measure. The system and the method for preventing pedestrians from collision based on vehicle-road cooperation have the advantages that more accurate pedestrian information within a wider range can be obtained in a vehicle-road cooperation manner and then the pedestrian-vehicle collision risk is determined, and furthermore, the corresponding collision preventing measures can be adopted, and therefore, the purpose of safe and intelligent driving aid can be achieved.

The invention discloses a driving behavior analysis and driving assistance system based on OBD. The vehicle driving data and failure information are acquired through an OBD diagnostic link, a GPS and an acceleration sensor are arranged additionally, a vehicle is monitored completely, the data are transmitted to a data center in a GPRS/3G/4G manner, the center classifies and summarizes the data before performing corresponded processing and feeds back the corresponded information including vehicle routine data flow, driving behavior analysis and other warning information to a vehicle user in a manner of the webpage or mobile communication so as to assist a driver, and the driver can drive safely and economically in an environment-friendly manner.

The invention belongs to the technical field of reliability engineering, and relates to an equipment residual service life prediction method under the condition of uncertain degradation measured data. The method includes the following steps: creating an equipment performance degradation model under the condition of the uncertain degradation measured data, estimating model parameters, estimating an equipment potential performance degradation state and predicating residual service life. The equipment residual service life prediction method under the condition of the uncertain degradation measured data is provided, degradation state uncertainty and measurement uncertainty are considered, characteristic quantity of individual service life and overall reliability service life of equipment are predicated and analyzed, and the method can serve as an effective analysis tool for predicating the residual service life of the equipment so as to provide powerful theoretical basis and technical support to state-based maintenance of the equipment, so that expenditure is reduced, unnecessary economic loss is avoided, and good engineering application value is realized.

The invention discloses a method for predicting residual service life of a flight control computer system, which comprises the steps of: storing historical reliability data of the flight control computer system by using an onboard health monitoring computer, obtaining working state data, and executing failure detection, reliability analysis and service life prediction of the flight control computer by using a fuzzy expert system. The working state data is obtained from a state sensor group. The development of the fuzzy expert system is used for modeling the reliability of the flight computer system, and the working condition of the flight control computer system is estimated according to the working state data and the fuzzy based reasoning for carrying out failure detection and predicting residual service life. The invention has the advantage of being capable of estimating the residual service life of the flight control computer system on line.

The invention relates to a microblog hype group discovering method based on maximum frequent item set mining. Microblog hype groups are effectively discovered, and false and malicious hype is avoided. The method comprises the steps that the correlation of a hype microblog is used as a clue, and an account set participating in hype microblog transmission is obtained based on the crawler technology or a microblog public open platform; single microblogs are used as transactions, accounts participating in microblog transmission are used as items, and a hype microblog transaction database is built; for transactions, corresponding to a microblog set to be detected, in the transaction database, the maximum frequent item sets contained in the transactions are found, the overlapping ratio of the maximum frequent item sets is calculated, small-scale item sets are merged into large item sets, the intersection frequency is reduced, whether the transactions comprise a certain item or not is judged through the binary search method when intersection is obtained between the transactions, the maximum frequent item set mining efficiency is improved, and microblog hype groups are discovered. The microblog hype group discovering method based on maximum frequent item set mining is simple, and can accurately discover malicious microblog hype groups and avoid negative influences on the society.

The invention discloses a belt conveyor automatic inspection system and method based on a multi-rotor unmanned aerial vehicle, and belongs to a belt conveyor fault inspection system and method. The automatic inspection system consists of a multi-rotor unmanned aerial vehicle, an unmanned aerial vehicle ground workstation and a navigation identification, wherein the multi-rotor unmanned aerial vehicle comprises an unmanned aerial vehicle body, an unmanned aerial vehicle navigation system, an unmanned aerial vehicle inspection system, an airborne power supply and a wireless signal transmitting terminal; the unmanned aerial vehicle ground workstation comprises a multifunctional computer and a wireless signal receiving terminal; the flight path of the unmanned aerial vehicle can be determined by identifying the navigation identification by the navigation system; a carrier roller on any position of the belt conveyor can be monitored by the inspection system; a monitoring signal is sent to the unmanned aerial vehicle ground workstation. The inspection method comprises a navigation method and an inspection method. A navigation mark is overlaid to automatically inspect the carrier roller of the belt conveyor, so that the abnormal state of the carrier roller can be detected in time, and more severe economic loss and casualties can be avoided. The belt conveyor automatic inspection system has the advantages of simple structure, good detection effect and time and labor saving.

The invention discloses a system and a method for detecting and evaluating corrosion of a buried pipeline, and belongs to the technical field of corrosion resistance of pipelines. The system comprises on-line soil corrosion detection equipment, on-line pipeline corrosion detection equipment and a corrosion evaluation and detection system, wherein the on-line soil corrosion detection equipment is arranged in the soil around a pipeline; the on-line pipeline corrosion detection equipment is arranged on a test pile of the pipeline; and the on-line soil corrosion detection equipment and the on-line pipeline corrosion detection equipment are respectively connected with the corrosion evaluation and detection system in a wireless data communication manner. By adopting the online-detection equipment, soil and pipeline corrosion data can be acquired timely, and the corrosion evaluation and detection system comprehensively and completely analyzes the monitored data of the soil and the pipeline; and the system can completely and systematically analyze the data relevant to the corrosion of the buried pipeline and timely evaluate the corrosion situation and the residual service life of the pipeline so as to timely judge the corrosion state of the pipeline.

A remote network seal-affixing device able to automatically affix seal under the control of remote signal and with high safety is composed of a box consisting of upper cover, main body, hydraulic cylinder, interface and electromagnetic lock, a sealing moving unit, a sealing holder, a document bearing tray, a seal destroyer, a recognizer, a projector, a camera head, and a control circuit.

The invention discloses a composite fault diagnosis method and device based on a deep decoupling convolutional neural network. The method comprises the following steps: 1, data set collection and calibration: respectively collecting vibration acceleration signals under single and composite fault experiment conditions of a rotary machine to obtain a plurality of samples, respectively forming a training set and a test set, and respectively setting category labels; 2, building a one-dimensional deep convolutional neural network model; 3, constructing a decoupling classifier with a multi-label output characteristic under a keras framework; 4, training a network model, and finally obtaining an optimal deep decoupling convolutional neural network model; and 5, performing intelligent diagnosis and classification on the composite fault, and outputting to obtain a real-time diagnosis result of the composite fault. According to the method, on the premise that only a single fault signal is used for training the deep decoupling network model, each single fault feature in the composite fault signal is extracted, and decoupling and classification of the composite faults are achieved through a decoupling classifier.

The invention discloses a heavy duty stacker for containers. The heavy duty stacker comprises a stacker frame, a safety protection device, a loading platform, a container hooking and taking device, a lifting device, an operation driving device and an electrical control device, wherein the stacker frame comprises four upright posts, an upper cross beam and a lower cross beam; the safety protection device comprises a cargo state detection device, a broken rope protection device, a power outage protection device, a travel speed-limiting device, a detection and positioning device and a progression speed reduction, walking emergency stop and retreat speed reduction switch; the container hooking and taking device comprises a lower fork, a middle fork, an upper fork and a hooking and taking driving mechanism composed of a normally closed electromagnetic braking motor, a chain wheel and a chain; the lifting device comprises a speed reduction motor, a pulley group, a steel wire rope reel, an encoder and a steel wire rope; and the operation driving device comprises a motor, a driving wheel, a driven wheel and an encoder. The heavy duty stacker is reasonable in structural design, strong in operability, good in safety performance and good in stable performance, and can meet the loading demand of large containers at ports and docks, and be convenient for popularization.

The invention relates to an assessment method for transient voltage stabilization of a load area of an electrical power system and belongs to the electrical power system stability analyzing and assessment field. The assessment method for the transient voltage stabilization of the load area of the electrical power system includes that using data measured by a synchronous phasor measurement unit as basis, and building an initial sample database for data mining through a lot of simulation samples; extracting characteristics for reflecting the stabilization degree of each node through the quantitative evaluation for each node in the area; identifying through a multiple linear regression method to obtain sensitivity coefficients for reflecting the mutual influence relations between the nodes in a local area network; using a semi-supervised clustering method to demarcate all the samples; using a decision tree algorithm to perform classified learning to obtain a decision tree model, and using the decision tree model for online monitoring to assess the global transient voltage stabilization state of the load area of the electrical power system.

The invention discloses an automatic fixed-length cutting machine for a soft rubber hose. The automatic fixed-length cutting machine comprises a regulating part, a transmitting part, a rapid cutting part, a controlling part and a pipe reeling part which are sequentially arranged along the motion direction of the soft rubber hose, wherein the transmitting part is arranged on the regulating part; amatched cavity matched with the soft rubber hose is arranged between a pair of special synchronous belts in the transmitting part; an inlet of a rubber hose guide sleeve in the rapid cutting part is opposite to an outlet of the matched cavity between the pair of the special synchronous belts; a cutter of the rapid cutting part is positioned right above the soft rubber hose and close to a tail endoutlet of the rubber hose guide sleeve; a monitoring region is formed between two pairs of correlation pipes in the controlling part; and a coiling motor in the pipe reeling part is synchronously matched with a servo motor in the transmitting part in the working process. According to the invention, the automatic fixed-length cutting can be realized; the size precision of the soft rubber hose is ensured; the automatic fixed-length cutting machine is convenient and safe to operate, has high automation degree, high working efficiency and low labor intensity; the economic loss of manufacturers can be avoided; and the production cost is reduced.

The invention relates to a system for estimating the life of the mechanical and electrical wearing parts for the power set, which comprises a database, a server, a software, a knowledge base, a man-machine interface, and a user terminal system, the life estimation method comprises: counting the history data of the life of the mechanical and electrical wearing parts, setting up a life database of the mechanical and electrical wearing parts, determining the distribution category and parameters of the mechanical and electrical wearing parts, counting the reliability R(t) of the mechanical and electrical wearing parts, counting the reliable life tRO of the mechanical and electrical wearing parts, setting up a knowledge base of the malfunction result of the mechanical and electrical wearing parts, determining the changeover period HRP of the mechanical and electrical wearing parts, estimating the residual life HRL, adjusting the planned maintenance interval to realize the optimized maintenance. The advantages of the invention are that the changeover period of the mechanical and electrical wearing parts can be calculated quantitatively in the using stage of the power set, and the residual life of the parts can be calculated quantitatively, thereby a computer online monitor of the changeover period and the residual life of the mechanical and electrical wearing parts can be realized.

The invention provides a fault handling method and device for an air conditioner and the air conditioner. The fault handling method for the air conditioner includes the steps that whether a communication fault occurs between an indoor unit and an outdoor unit of the air conditioner is detected; when a communication fault between the indoor unit and the outdoor unit of the air conditioner is detected, the indoor unit and the outdoor unit are controlled to continue operating in the current operating mode; when the time length that the indoor unit and the outdoor unit are controlled to continue operating reaches a preset time length, if the communication fault between the indoor unit and the outdoor unit is not relieved, the indoor unit and the outdoor unit are controlled to stop working. By means of the technical scheme, it is guaranteed that the air conditioner system can continue operating for a period of time when a communication fault occurs between the indoor unit and the outdoor unit of the air conditioner, and serious economical loss caused by direct shutdown of the air conditioner system on some special use occasions is avoided.

The invention discloses a remote fire monitoring electric meter system based on Internet of Things. The remote fire monitoring electric meter system comprises electric meter detectors, an Internet of Things monitoring detectors and a monitoring center platform, wherein the electric meter detectors are used for detecting residual current, wire through current and temperature data in a circuit in real time; the Internet of Things monitoring detectors are used for analyzing and processing data sent by the electric meter detectors, judging whether phenomena that the electricity is leaked, the circuit is overloaded and the temperature of electric devices is abnormal occur in the circuit or not, and sending the abnormal phenomena to the monitoring center platform through the Internet of Things; the monitoring center platform is used for comprehensively managing the abnormal data sent by the Internet of Things monitoring detectors, alarming through a central alarming platform when the circuit is abnormal, accurately displaying positions of faults, automatically informing relevant responsible personnel to repair the faults and eliminate hidden danger through calls or short messages. The remote fire monitoring electric meter system can be simultaneously linked with a fire protection monitoring center, so that the fire protection monitoring and early-warning capability can be improved; the remote monitoring is achieved; the fire protection force can be remotely deployed; new generation of information network communication is accelerated and promoted; the electricity safety innovative service mode is promoted.

The invention relates to an electric power plant condenser high pressure water shooting flow online washing robot technology that cleans the electric power plant condenser by high pressure water shooting flow. Setting the mechanism arm locating device and high pressure soft tube into the condenser by using the combination method and install structure of locating mechanism arm orientation device formed by extending mechanism arm and rotating mechanism arm, high pressure soft tube manage device, and high pressure spray head control device, locates the spray head on the rotating mechanism arm by computer control system, sends to the inner of the condenser copper pipe, and cleans the dirt in the inner of the condenser copper pipe by high pressure water shooting flow. The generating set needs not stop while cleaning. The invention has advantage of simple structure, no pollution and high reliability.

The invention discloses a high-voltage inverter convenient to move. The high-voltage inverter convenient to move is simple and reasonable in structure, low in production cost, convenient to mount andcomplete in function. A moving device, with the damping function, special for the inverter is provided, the damping function is achieved, when the inverter is transported, the inverter is protected, the inverter is not prone to damage, and economic losses are reduced; a spring is arranged between a groove and a support, vibration can be effectively resisted, a handle is rotated, a clamping block clamps the inverter, shaking is prevented, damage in the transporting process is avoided, a hydraulic rod works, a lifting frame descends, a concave frame covers the inverter, the freedom degree of theinverter can be limited to a great degree, a rotating motor drives a rotating shaft to rotate, a first shaft sleeve and a second shaft sleeve move to achieve ascending and descending of the sliding rod, the height of the whole device is greatly adjusted, through motor ascending and descending, the inverter is stable and efficient, the inverter cannot be damaged, an air pressure rod extends out ofa universal wheel and is moved through the universal wheel, and after the air pressure rod is moved to the designated place, the air pressure rod retreats from the universal wheel.

The invention discloses a server long-distance monitoring and fault processing device and method based on a short message of a mobile phone, which can solve the problems in the prior art that various application service ports in a server cannot be monitored, and a fault cannot be processed in a long-distance manner by using a mobile phone. The server long-distance monitoring and fault processing device comprises a local area network, a GSM (Global System for Mobile Communications) modem, a mobile network and a mobile phone. A mobile phone terminal is used for receiving an alarming short message and sending the message to a monitoring server through the mobile network and the GSM modem. The server long-distance monitoring and fault processing method comprises the following steps of: collecting states of the server and various services in real time through a monitoring program; and if the monitoring program collects an abnormal state, automatically sending the alarming short message to an assigned mobile phone by using the mobile network through a short message platform and the GSM modem. The device can monitor a plurality of servers in the local area network just by one service terminal without a client. The device has the characteristics of low price, strong practical applicability, convenience in use and the like.

The invention relates to a degradation modeling-based equipment failure number prediction method. Performance degradation data obtained by a product during a performance changing process is fully utilized to predict the residual life of the single high-reliability product; a failure number of the equipment is determined; and spare part management is optimized based on the prediction of the failure number of the equipment. The method comprises the following four steps: establishing a performance degradation model of the equipment; carrying out parameter estimation in the performance degradation model; carrying out residual life prediction; and carrying out equipment failure number prediction. Compared with the prior art, the provided method enables prediction parsing to be carried out on the individual residual lift and the general reliability service life of the product; and the provided method can be used as an effective analytic tool for predicting the product residual life and the failure number. And a powerful theoretical basis and technical support can be provided for product maintenance and spare parts ordering strategy determination. Therefore, the expenditure can be saved and unnecessary economic loss can be avoided. And thus the method has the great engineering application value.