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175results about How to "Avoid economic loss" patented technology

System and method for detecting and evaluating corrosion of buried pipeline

InactiveCN102590459AAvoid economic lossReasonable balance between safety and economyMaterial analysis by electric/magnetic meansWireless dataCorrosion
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.
Owner:PETROCHINA CO LTD

Temperature protective dry-type air core reactor and temperature measuring method thereof

The invention relates to a temperature protective dry-type air core reactor and a temperature measuring method thereof. The air core reactor comprises an upper starframe and a lower starframe (1,8), an upper starframe epoxy connection board and a lower starframe epoxy connection board (3,6), an epoxy board stay (9), an epoxy board (16), a dry-type air core reactor coil (10), a casing (17), a temperature sensor and a temperature control device. The dry-type air core reactor is characterized in that the temperature sensor is an optical fiber temperature measuring sensor which is attached at the surface or any point or a plurality of points inside and outside the insulating wrapping layer of the dry-type air core reactor. The dry-type air core reactor can work in the set temperature range after the temperature protection dry-type air core reactor is adopted, a temperature control instrument can make sound alarm and light alarm when the reactor works abnormally at the temperature above or below the set temperature range; and once the set upper limit is exceeded, the reactor and the matching devices thereof can be cut off from circuits in time, so that the expansion the accident range can be avoided and subsequently the economic loss can be avoided.
Owner:庞挺

Design method of building model

Provided is a design method of a building model, belonging to the technical field of IT application of building information. The method comprises the following steps: drawing two-dimensional drawings related to specialties such as civil engineering and rebar; establishing 3D models of all specialties according to dimension information o the two-dimensional drawings; carrying out collision check on a single specialty 3D model and correcting collision points of the 3D models; carrying out collision check on 3D models of specialties in a pair and modifying collision points of all the specialties of 3D models; carrying out collision check on 3D models of all the specialties, distinguishing the true-or-false of the collision points, and modifying the true collision points in the 3D models of all the specialties; according to the modified 3D models of all the specialties, improving the two-dimensional drawings of all the specialties and finishing design of the building model. The design method of the building model has the following beneficial effects: through three-dimensional modeling, a design problem is directly reflected; BIM technology is applied for collision check; collision problems among all the specialties are found out; drawings are modified, thereby improving design quality and avoiding economic loss caused by changes in drawings; and obvious effect is exerted on the architectural engineering design with complicated structure and many inter-specialties.
Owner:LIAONING TECHNICAL UNIVERSITY

Charge-storage integrated micro grid energy optimization scheduling method based on Stackelberg game

The invention relates to a charge-storage integrated micro grid energy optimization scheduling method based on Stackelberg game. The method comprises steps that firstly, the photovoltaic, fan and loadoutput in an upper micro grid is predicted, the internal electricity price is initialized, and whether the number of iterations k reaches the maximum number of iterations Kmax of a differential evolution algorithm (DE) is determined; secondly, according to the obtained initial internal electricity price, an optimal charging and discharging schedule of the CSSIS is obtained and fed back to the upper micro grid, the DE algorithm is utilized to calculate an upper micro grid target function CMG satisfying upper constraint conditions, the internal electricity price is subjected to mutation and intersection to generate the offspring internal electricity price, and the corresponding offspring upper micro grid target function C'MG is calculated; and lastly, an upper micro grid target function CMGand the corresponding upper micro grid target function C'MG are determined. The method is advantaged in that mutual benefit and win-win between the micro grid and the electric vehicle charge-storageintegrated power station CSSIS can be realized, and resources in the electric vehicle charge-storage integrated power station CSSIS can be more effectively utilized.
Owner:CHINA THREE GORGES UNIV

Automatic feeding equipment for livestock cultivation

The invention relates to the technical field of automatic equipment, and discloses automatic feeding equipment for livestock cultivation. The equipment comprises an equipment main body, wherein supporting sleeve rods are fixedly mounted on the side surface of the bottom end of the equipment main body; buffer springs are fixedly mounted in inner cavities at the bottom of the supporting sleeve rods;the bottom ends of the buffer springs are fixedly mounted at the top ends of supporting legs; the middle of the bottom end of the equipment main body fixedly sleeves a feeding port; and the feeding port fixedly sleeves a valve. According to the equipment, a blanking plate is arranged at the bottom of the inner cavity of the equipment main body, small holes are formed in the blanking plate, corresponding small holes are further formed in a rotating plate, and a rotating shaft fixedly sleeves the rotating plate, so that when a rotating motor is connected with a power supply to drive the rotating shaft to rotate, the rotating plate is driven to rotate together, and when the small holes on the rotating plate rotate to coincide with the small holes on the blanking plate, feeds on the rotatingplate fall into the feeding port and is discharged, so that the automatic feeding function is realized.
Owner:江门健维自动化设备有限公司

Random encrypted physical information blockchain anti-counterfeiting system

The invention discloses a random encrypted physical information blockchain anti-counterfeiting system. The system comprises a fixed terminal, a 4G network and a mobile terminal, the fixed terminal comprises a central processor, an input end of the central processor is connected with an output end point of a data processing unit, an input end of the data processing unit is connected to an output end point of a data acquisition unit, and the data acquisition unit includes a fingerprint acquisition module, a face acquisition module and an iris acquisition module. According to the random encryptedphysical information blockchain anti-counterfeiting system, through the arrangement of the fingerprint acquisition module, the face acquisition module and the iris acquisition module, before an electric vehicle is used by a user, identity information of the user is acquired by the data acquisition unit at first, a data comparison unit is adopted for comparison to determine whether or not the useris an owner, if it is determined that the electric vehicle belongs to the owner, a red indicator light and a green indicator light are sequentially illuminated, if the user is not the owner, a buzzersounds, the electric vehicle is prevented from being stolen accordingly, and the economic loss caused to people is avoided.
Owner:北京智帮帮科技有限公司

Control method and system of air source heat pump and air source heat pump

The invention provides a control method and system of an air source heat pump and the air source heat pump. The air source heat pump comprises an outdoor unit. The outdoor unit comprises a compressor, a fan and a heat exchanger. The control method of the air source heat pump includes the steps that when a starting and/or stopping instruction of the compressor are/is received, the running power and/or running current of the fan are/is obtained; whether the running power and/or running current meet/meets a preset condition or not is judged; and when the running power and/or the running current meet/meets the preset condition, a reminding signal for reminding a user to clean the heat exchanger is sent. By means of the control method and system of the air source heat pump and the air source heat pump, the user and after-sales service staff of manufacturers are reminded in time to clean the fin heat exchanger of the outdoor unit and check to solve the problem of too high load of the fan of the outdoor unit, the good heat exchanging effect of the heat exchanger of the outdoor unit is guaranteed, the situation that the electric appliance line is too hot due to too high load of a motor, then the motor is damaged, and consequently economic loss is caused is avoided, and the product quality is improved.
Owner:GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1

VR glasses with positioning function

The invention discloses a pair of VR glasses with a positioning function. The pair of VR glasses with a positioning function includes a main body of the VR glasses, a front cover and a compression spring, wherein a head pressure reduction pad is arranged at the outer surface of the upper end, approaching to the middle part, of the main body of the VR glasses; the outer surface of the upper end, approaching to the front end, of the main body of the VR glasses is fixedly connected with a GPS receiver; the outer surface of the back end of the main body of the VR glasses is fixedly connected withan eye mask pad; the outer surface of one side of the main body of the VR glasses is fixedly connected with a control panel and an elastic data line; the elastic data line is located at one side of the control panel; a volume adjusting button and a speed adjusting button are arranged on the outer surface of the front end of the control panel; and a headband is arranged on the outer surface of oneend of the head pressure reduction pad. The pair of VR glasses with a positioning function is provided with the GPS receiver, the compression spring and the elastic data line, and can position the VRglasses, can conveniently fix a mobile phone, and can establish connection between the VR glasses and the mobile phone, thus being convenient for operation, and bringing better application prospect.
Owner:WEIHAI YUNRUI INFORMATION TECH CO LTD

Lithium battery health state estimation and residual life prediction method under time-varying temperature

The invention discloses a lithium battery health state estimation and residual life prediction method under a time-varying temperature, and the method comprises the following steps: S1, building a lithium battery performance degradation model under a time-varying temperature condition based on a Wiener process, a Power Rule stress model and an Arrhenius temperature stress model; s2, estimating prior parameters of the lithium battery performance degradation model based on a maximum likelihood estimation method, and then updating posterior distribution of a drift coefficient on line according to detected field degradation data of the lithium battery; s3, obtaining an expectation, variance and probability density distribution expression according to the detected on-site degradation data of the lithium battery in combination with the degradation process of the lithium battery; and S4, according to the detected on-site degradation data of the lithium battery, in combination with the degradation process of the lithium battery and the relationship between the residual life and the first arrival time, obtaining a probability density distribution function of the residual life of the lithium battery under the time-varying temperature working condition.
Owner:中国人民解放军火箭军工程大学

Electrical equipment fault early warning method and system based on RFID monitoring

The invention relates to an electrical equipment fault early warning method and system based on RFID monitoring, and the method specifically comprises the steps: collecting a time sequence temperaturedata set of electrical equipment through an RFID temperature collection system, preprocessing, and inputting the data set into a trained denoising self-coding network and a trained long and short time memory neural network; respectively obtaining first fault early warning information and first prediction fault early warning information, and inputting the first fault early warning information andthe first prediction fault early warning information into the trained Xgboost model to obtain a fault early warning level; acquiring historical time sequence temperature data and corresponding historical fault early warning information of electrical equipment, preprocessing the historical time sequence temperature data, and using the preprocessed historical time sequence temperature data and the corresponding historical fault early warning information as a training set by a denoising self-encoding network and a long-short-term memory neural network; and enabling the Xgboost model to take the historical fault early warning information and the corresponding fault early warning level as a training set. Compared with the prior art, the invention has the advantages of avoiding over-fitting, being high in precision and the like.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO

Intelligent contract-based digital currency transaction method and device as well as computing equipment

InactiveCN108537668AEnsure transaction securityAvoid economic lossFinanceSmart contractDatabase
The invention discloses an intelligent contract-based digital currency transaction method and device as well as computing equipment. The method comprises the following steps: when a digital current transaction request sent from a first transaction node to a second transaction node is monitored, triggering a script of an intelligent contract layer to automatically operate; in the script operation process, judging whether the digital currency transaction is secure or not according to address information of the second transaction node; if NO, intercepting or prewarning the digital currency transaction. The method monitors a transaction request of the first transaction node, judges a transaction object, namely the address information of the second transaction node, by using the intelligent contract, and intercepts or prewarns the transaction before the transaction is started if the digital currency transaction is not secure, so that the transaction security is guaranteed to the maximum extent, and invocatable economical loss caused by a user is avoided. Based on the characteristic of the digital currency transaction, the method effectively intercepts non-secure transactions by using the intelligent contract under the condition of not affecting normal transactions of digital currencies.
Owner:BEIJING QIHOO TECH CO LTD

Fully-sealed type low-voltage branch box

The invention discloses a fully-sealed type low-voltage branch box which comprises a busbar frame. The fully-sealed type low-voltage branch box is characterized in that the fully-sealed type low-voltage branch box further comprises a sealed box body, a box door is formed in one side of the sealed box body, the box door is connected with the sealed box body through an embedded type rotary shaft mechanism, sealing strips are arranged between the box door and the sealed box body, the busbar frame is arranged in the sealed box body, a protective rubber layer is arranged at the outer side of the busbar frame, and a socket connected with a cable is arranged on the busbar frame. According to the fully-sealed type low-voltage branch box, the problems that an open busbar is adopted by a low-voltage branch box in the prior art, the existing low-voltage branch box is low in protective level, a line short circuit occurs when the existing low-voltage branch box is exposed to heavy rain or immersed in flood, certain economic losses are caused for a user, and the existing low-voltage branch box can not be used conveniently by the user due to the fact that power is off are solved, the structure is simple, double-layer sealing protection is adopted, and the short circuit is prevented from occurring when the line is exposed to water.
Owner:KUSN MAIZHI FIXTURE TECH

Intelligent anti-theft system and method of automobile tire

The invention discloses an intelligent anti-theft system of an automobile tire. The intelligent anti-theft system comprises a central processing module (4), a power-supply module (1) of the central processing module (4), and a sensor group module (2), a GSM alarm instance responding and processing module (5) and a camera image acquisition and transfer module (6) which are connected with the central processing module (4) and are integrally controlled; during the flame-out of an engine, when the automobile owner leaves the automobile, the anti-theft system starts working; the sensor module on anautomobile chassis starts working normally; and a detection signal is sent into the central processing module and data analysis and processing is performed to judge whether the situation of the theftof the automobile tire occurs. Compared with the prior art, the intelligent anti-theft system disclosed by the invention has the advantages that through intelligent means, the theft of the automobiletire (the condition that the tire is not disassembled) can be known in real time and can be responded immediately, so that the theft can be stopped in time, and a picture from the scene can be obtained to help save the evidence and help the police to catch the thief; and the anti-theft system is high in accuracy and real-time capability.
Owner:TIANJIN UNIV
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