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274results about How to "Cause loss" patented technology

Method and system for real-time multi-parameter measurement and transmission while drilling in all well sections

ActiveCN103967481AReduce downhole stickingReduce riskSurveyEngineeringReal time transmission
The invention discloses a method and a system for implementing parameter measurement while drilling and real-time transmission to the ground at a plurality of points in a mineshaft along a drill column based on sound wave information transmission. An underground while-drilling parameter measurement system is used for acquiring underground information, the information is regulated and then transmitted to an underground signal transmitting system and transmitted upwards in a sound wave manner along the drill column; sound wave signal relay systems are used for receiving a signal upwards-transmitted from the underground, decoding the signal, combining the measurement information, and then transmitting the information upwards; afterwards, the signal is upwards-transmitted to the ground, received by a ground receiving system, decoded and then wirelessly transmitted to a ground information display and decision making system, wherein a plurality of relay systems are arranged along the drill column according to the well drilling construction requirements so as to realize real-time acquisition of the parameters of all well sections along a well body. The method and the system provided by the invention can be used for acquiring real-time underground parameters of all well sections so as to effectively reduce the risk of accidents such as underground jamming of a drill and hole-wall collapse, improve the well drilling efficiency and provide support for best well drilling decisions. The method and the system can be used for greatly improving the precise pressure control capability especially during a managed pressure drilling process.
Owner:BC P INC CHINA NAT PETROLEUM CORP +2

Over-temperature protection circuit for radio frequency power amplifier

The invention relates to an over-temperature protection circuit for a radio frequency power amplifier. The circuit comprises a temperature detection circuit, a comparator circuit, a logic control circuit and a bias circuit which are connected in turn, wherein the temperature detection circuit detects the temperature of a chip and outputs the temperature to the comparator circuit, the comparator circuit outputs a trigger signal to the logic control circuit, and the logic control circuit controls the bias circuit to adjust the current of the amplifier to adjust the working temperature of the logic control circuit so as to realize protection; reference voltage is input into one end of a comparator in the comparator circuit, and the output signal of the temperature detection circuit is input into the other end of the comparator; or the output signal of the temperature detection circuit is input into the two input ends; and the temperature detection circuit consists of one or more diodes which are connected in series. When mobile communication equipment does not work, the over-temperature protection circuit can be switched off in a bias circuit control mode, and leakage current in the over-temperature protection circuit is avoided so as not to cause unnecessary energy loss; and the circuit is flexibly applied and convenient to integrate.
Owner:北京昂瑞微电子技术股份有限公司

Ternary-system chip negative temperature coefficient thermal resistor

The invention relates to a ternary-system chip negative temperature coefficient thermal resistor, which uses manganese nitrate, nickel nitrate and cobalt nitrate as raw materials and ammonium bicarbonate as precipitator, is prepared by a liquid-phase co-precipitation method, and comprises the following steps: improving the agglomeration phenomenon of the precipitated particles by controlling the molar ratio of nitrate to precipitator ammonium bicarbonate, the reaction temperature and the pH value, washing out the impurities in the product by modes of water washing and alcohol washing to obtain superfine and uniform thermal resistor powder, drying, calcining to obtain evenly dispersed mixed oxide powder of Mn, Ni and Co, briquetting and moulding the powder, isopressing, sintering under high temperature, slicing by a semiconductor to obtain a thermal resistor chip, and encapsulating with epoxy resin to obtain the ternary-system chip negative temperature coefficient thermal resistor with high performance which has the characteristics of good uniformity, high stability, capability of repeatability and interconversion, and is suitable for temperature measurement, control and line compensation in the household appliance field such as refrigerators, air conditioners and the like.
Owner:XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI

A method and system for monitoring customer behavior in unmanned supermarket

InactiveCN109002772ACause lossDoes not affect normal shoppingImage analysisCharacter and pattern recognitionPaymentSimulation
The invention discloses a method for monitoring customer behavior of in unmanned supermarket, which comprises the following steps of: obtaining an image of a customer entering an unmanned supermarketfrom an entrance of the unmanned supermarket; tracking the image of each customer entering the unmanned supermarket; tracking the motion and behavior of the customers in the unmanned supermarket; analyzing the movement and behavior of customers in the unmanned supermarket; obtaining payment vouchers of customers about to leave the unmanned supermarket and inspection results of commodity anti-theft devices; tracking the images and behaviors of the customers from the end of the purchase to the time they leave the unattended supermarket; judging whether customer behavior is abnormal; if so, sending an alarm and refusing to open the door for the customer by the unmanned supermarket; if not, allowing the customer to open the door with payment vouchers and leave the unmanned supermarket. The invention also discloses a system for monitoring customer behavior in unmanned supermarket. The invention discloses a method and system for monitoring the customer behavior in an unmanned supermarket,which prevent the customers with improper intentions from causing the loss of the unmanned supermarket.
Owner:SHENZHEN SAIYI TECH DEV

Keyboard input encryption method and mobile terminal thereof

The invention discloses a keyboard input encryption method and terminal equipment thereof. The mobile terminal comprises an encryption setting module, a resetting encryption setting module, an encryption input module and a central processing unit. The method comprises the following steps of: (a) detecting whether a user presses a functional key, and if the user presses the functional key, executing the next step, otherwise, ending the detection; (b) judging a mode of the current user input keyboard by a system, if the mode is a common mode, directly outputting a typed functional key value through a keyboard, and if the mode is an encryption input mode, executing the next step; (c) judging whether the typed functional key value is exchanged with a key value of another functional key during encryption, if so, executing the next step, otherwise, directly outputting the functional key value; and (d) outputting the exchanged key value, and returning to the step (a). Aiming at a situation that a user uses mobile phone application to input sensitive information under a complicated environment, the encryption security of an input method is realized; a phenomenon that sensitive information acquired by the user is pried is avoided; fund loss of the user is prevented; and therefore, the user can securely execute relevant operation with a mobile phone, and the security of the mobile phone is also improved.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Double-drive device of vehicle compressor

The invention relates to a double-drive device of a vehicle compressor. The double-drive device comprises a shell body, a first driving component arranged in the shell body, a second driving component and an execution component, wherein the first driving component comprises an engine, an engine rotating shaft and a first one-way clutch; the engine rotating shaft penetrates through an input flange and is connected with the output end of the engine; the first one-way clutch is sleeved on the engine rotating shaft; an inner ring of the first one-way clutch is connected with the engine rotating shaft through a key; and the second driving component comprises a motor, a motor rotating shaft connected with the output end of the motor through a motor belt pulley, and a second one-way clutch. According to the double-drive device, the technical problems of high energy consumption in a traditional single-drive vehicle compressor and complicated double-drive structure in a traditional vehicle compressor are solved; the double-drive device provided by the invention is applied to a temperature regulating system, and according to the operation need of a refrigeration system, the switching can be realized under the operation state of a chassis engine and the motor, so that the compressor is driven to operate.
Owner:SHAANXI AEROSPACE POWER HIGH TECH

Dry salt discharge method applicable to saline-alkali land in arid area

InactiveCN107820761AHigh salinityGood salt removal effectSoil-working methodsAlkali soilWater flow
The invention relates to a dry salt discharge method applicable to a saline-alkali land in an arid area. With the method provided by the invention, a mode of drip irrigation under a film is adopted; crops are planted on the saline-alkali land in the arid area; and a layer of a porous hydrophilic material is laid on the surface of the film-uncovered saline-alkali land exposed among films. The method provided by the invention does not need additional washing of salt by irrigation and can discharge the salt accumulated on land surface among the films on the basis of no loss and no damage to surface soil, wherein the key of the method is to lay a layer of the porous hydrophilic material on the ground surface among the films. According to the invention, under the driving of atmospheric evaporation force, a water flow carried with the salt migrates to the surface soil among the films from a root area, and continuously migrates upward into the porous hydrophilic material; and when water is evaporated into the atmosphere, the salt remains in the porous hydrophilic material, and the porous hydrophilic material adsorbed with the salt is finally removed, so the purpose of discharging the saltcan be reached. The method provided by the invention has the obvious advantages of conservation of water, high efficiency, convenience and rapidness, low cost, great large-scale popularization value,etc.
Owner:CHINA AGRI UNIV

Intelligent fiber distribution system with function of remote control, and control method for intelligent fiber distribution system

The invention relates to an intelligent fiber distribution system with a function of remote control, and a control method for the intelligent fiber distribution system. The system comprises a near-end control platform and a far-end fiber distribution box. The near-end control platform carries out the signal control of the far-end fiber distribution box in a wireless or wired communication manner. The system is characterized in that the near-end control platform comprises a fiber distribution state management module and a near-end communication module; the far-end fiber distribution box comprises a mobile control unit, a user port fiber connection seat, a fiber port positioning hole, a mechanical arm assembly, a rebound-type or sliding-type fiber storage assembly, and a fiber connector; the mobile control unit receives signal control information which is transmitted by the near-end control platform in a wireless or wired communication mode; the mobile control unit is used for operating the clamping and moving operation of the mechanical arm assembly, thereby enabling the fiber connector and the fiber storage assembly to cooperate and be connected with each other for operation; and the connection or disconnection of a fiber in a box with a fiber outside the box can be completed through one-time fiber jump. The system can meet the demands of the miniaturization of a fiber distribution device.
Owner:南京丰泰通信技术股份有限公司

Coal dust conveying device leakage monitoring and early warning device and method

The invention discloses a coal dust conveying device leakage monitoring and early warning device and method. The leakage monitoring and early warning device comprises distributed temperature sensitive optical fibers which are wound and adhered on the external wall of a conveying steel pipe. The conveying steel pipe is externally wrapped by a heat insulation layer and a protective sleeve. The conveying steel pipe is divided into multiple continuous monitoring areas along the axis. The protective sleeve in each monitoring area is externally provided with a jacket. The two ends of the jacket stretch into the protective sleeve and the heat insulation layer and then are connected with the conveying steel pipe in an adhesive way. The jacket and the external wall of the conveying steel pipe form an enclosed pressure detection cavity. In the pressure detection cavity, an optical fiber grating vibration sensor is arranged on the external wall of the conveying steel pipe, and an optical pressure sensor is installed in the heat insulation layer. Leakage of the coal dust conveying device caused by holes or cracks at the early stage of leakage can be accurately judged and early warning can be performed, leakage of the coal dust conveying device caused by friction of the coal dust in conveying can also be accurately judged and the leakage points can be accurately captured and located and early warning can be performed so that safe production of enterprises can be ensured.
Owner:北京百世通管道科技有限公司

New material stirring mixing device capable of changing stirring scope

The invention discloses a new material stirring mixing device capable of changing a stirring scope. The new material stirring mixing device comprises a shell, feeding ports, a support base, a first stirring shaft, a second stirring shaft and material circulating chambers; the support base is arranged at the bottom of the shell; support legs are symmetrically welded on the two sides of the lower surface of the shell; the support legs are bias arranged; the lower ends of the support legs are fixed on the upper surface of the support base; a bottom stirring paddle, the first stirring shaft and the second stirring shaft are successively arranged in an inner chamber of the shell from bottom to top; two feeding ports are symmetrically formed in the upper surface of the shell; two material circulating chambers are symmetrically vertical arranged on two side walls of the shell; the new material stirring mixing device is characterized in that a storage battery is welded on a left side wall of the inner chamber of the support base; a servo motor is arranged on the right side of the storage battery. The new material stirring mixing device is convenient in use, is capable of continuously changing the stirring scope so as to optimize the mixing stirring effect of raw materials and is capable of realizing efficient mixing of the raw materials.
Owner:佛山博发智能科技有限公司

Wireless radio frequency technology-based intelligent power distribution cabinet system

The invention provides a wireless radio frequency technology-based intelligent power distribution cabinet system. The intelligent power distribution cabinet system comprises an electronic wristband and a power distribution cabinet body; an electronic lock is arranged on the cabinet door of the power distribution cabinet body; a control apparatus and a binocular vision sensor are arranged on the cabinet body of the power distribution cabinet body; an electric quantity detection apparatus is arranged in the cabinet body; a data collection apparatus is also arranged in the cabinet body; the output ends of the electronic lock, the electric quantity detection apparatus and the data collection apparatus are electrically connected with the input end of the control apparatus separately; and the control apparatus and a remote monitoring center are in data transmission through a wireless network. The electronic wristband disclosed in the invention stores information of working staffs with permission of opening the power distribution cabinet; the wireless radio frequency technology is adopted for identification, and the binocular vision sensor is used to collect image information of a user for performing dual identification; if identification is successful, the power distribution cabinet is opened by controlling the electronic lock; and if identification is in failure, reminding is performed through an alarm, so that loss of personal safety and property safety caused by illegal operation by non-staffs can be prevented.
Owner:TIANJIN KEYSINO NEW ENERGY ELECTRICAL

Process method for processing titanium nitride residues on aluminum welding pad

The invention provides a process method for processing titanium nitride residues on an aluminum welding pad. The process method comprises the following steps of: step 1, etching a barrier layer which is not covered by a photoresist layer, a substrate below the barrier layer and a top metal barrier layer until a metal layer is etched; step 2, completely removing the photoresist layer; step 3, depositing silicon nitride; covering the silicon nitride on the barrier layer, the top of a side wall of the substrate, a side wall of the metal barrier layer and the upper surface of the metal layer; step 4, carrying out photoresist layer deposition on the upper surface of the metal layer; utilizing a condition of aluminum welding pad photoetching to carry out coating and developing of light resistance; step 5, etching the silicon nitride which is not covered by the photoresist layer; step 6, removing the photoresist layer; and step 7, carrying out chemical washing. According to the process method for processing the titanium nitride residues on the aluminum welding pad disclosed by the invention, under the precondition of keeping the appearance of the aluminum welding pad, the titanium nitride residues on the aluminum welding pad can be removed and overmuch loss of bottom aluminum is not caused; and meanwhile, the caused waste of wafers can be greatly avoided, the process is simple and extra equipment and materials do not need to be added.
Owner:SHANGHAI HUALI MICROELECTRONICS CORP
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