35results about How to "Prevent random changes" patented technology

The invention discloses a cloud resource authorizing method under a cloud computing environment. When new cloud resources need to be added, an authorization step is performed, an authorization licence generation module uses an encryption algorithm to generate secret keys and serial numbers according to unique identification information of the input cloud resources, a verification step is performed when the new cloud resources need to be used, a cloud resource authorization verifying module automatically detects verification files, if a verifying result is correct, the cloud resource authorization verifying module is used for decrypting the serial numbers of the cloud resources, and comparative verification is performed on decrypted information and real-time true information of the cloud resources. According to the cloud resource authorizing method under the cloud computing environment, a cloud platform operator can conduct validity verification on the cloud resources used by different lessees in a platform of the cloud platform operator through an authorization mechanism, it is ensured that the cloud resources are mutually isolated, a cloud platform software and hardware manufacturer can conduct use validity verification on products sold by the cloud platform software and hardware manufacture, and therefore a cloud computing service provider is prevented from changing the application range of the products at will, and the legitimate interests of the cloud computing service provider are protected against losses.

The invention discloses a project progress monitoring prompt system and belongs to the progress management system. The system comprises an identity verification module, a standard library module, an object processing module, a calendar module, an address list module, an auditing module, a storage module and a message module. By using the system, feature comparison can be performed on an uploaded file and a standard file of the standard library module; auditing is automatically completed; a labor intensity brought by manual review of management personnel is reduced and an office automation level is increased. Aiming at a progress lag or file abnormity condition, message prompt is automatically performed on a related step contact person so that the related person can timely receive the prompt message and adjust the project progress.

The invention relates to the technical field of block chains, in particular to a bulk commodity spot transaction system based on a block chain smart contract. A method comprises the following steps: initiating a user account registration request; creating an account, and completing digitization of user account information; initiating a cargo information creation request, and creating cargo data; according to the cargo data, initiating a cargo transaction process, and after the cargo transaction process is completed, outputting the cargo transaction data through an API in the blockchain platform; the data layer receiving the cargo transaction data, performing persistence processing and encryption processing on the cargo transaction data, and pushing the encrypted cargo transaction data to the blockchain bottom layer through the blockchain API; and the blockchain bottom layer receiving the encrypted cargo transaction data, performing distributed accounting to write the cargo transactiondata into the block, and returning the transaction ID to the data layer for storage. According to the invention, the problem that the goods transaction data is tampered is avoided, and a guarantee isprovided for the authenticity of spot goods transaction information.

The invention relates to a range-adjustable device for measuring small pushing force of an engine. The range-adjustable device comprises a base, a vertical beam, a step supporting shaft, a bearing, a transverse beam, a propellant storage box, a balance weight, an electric cabinet, a force sensor, a force sensor fixing support, a signal processing unit and a computer. The range-adjustable device is characterized in that the bearing structure is adopted, the dead load of the engine is balanced by the balance weight, the range is changed by changing a specific value of a force arm of the engine to a force arm of the sensor, a propellant pipe is directly connected with the step supporting shaft, propellants flow through a propellant flowing way of the step supporting shaft, and influences of the propellant pipe and a control line on the accuracy are eliminated by reducing the force arm. When the measured pushing force is changed from the micro-Newton order to the milli-Newton order, the null point drifting is smaller than +-0.5%F.S. per hour, steady state measuring errors are smaller than +-1% of the full range, and the dynamic response delay time is shorter than 15 ms. The measuring device is simple and reliable in measuring process, good in repeatability and capable of meeting the requirement for measuring the small pushing force of the engine.

The invention provides an image file using and verifying method, compressing image file into a file packet to be stored at client end, and the file packet includes a list of HASH values of all files in the image file; when verifying the image file, reading in the list of HASH values; drawing a record from the list; calculating the HASH value of an image file in the client end corresponding to the record; comparing whether the HASH value of the record is equal to the calculated HASH value of the current file. Thus, it can prevent image files being modified at will.

The invention discloses a two-degree-of-freedom photovoltaic power generation device for automatically tracking sunlight and a tracking method. The problem of single position of the battery panel is overcome as the solar panel is capable of tracking the position of the sun. At the beginning, the device is initialized, a photosensitive element provides the collected data to a single chip, the single chip receiving the data signal runs the program and controls a first stepping motor and a second stepping motor that are electrically connected to make the worm and the second worm rotate to drive the transmission main shaft to rotate, so that the solar panel rotates and can receive the maximum illumination. The stepping motor and worm gear set used by the invention for angle adjustment is capable of realizing precise angle control and self-locking of the corresponding rotation direction, and preventing the orientation of the solar panel from being arbitrarily changed due to external force factors. The photosensitive member of the invention is capable of accurately determining the direction of the sun light and automatically adjusting the orientation of the solar panel to be the same asthe direction of the sunlight.

The invention relates to a vehicle-mounted miniature camera pitching angle adjusting mechanism. A miniature camera base is erected in a suspended mode by the vehicle-mounted miniature camera pitchingangle adjusting mechanism through a left shaft seat and a right shaft seat. The left shaft seat is provided with a damping shaft used for providing holding torque. The right shaft seat is provided with a rotary limiting end cover, and the miniature camera base can be driven to rotate. The damping shaft is adopted for being connected with a camera part, infinite adjustment is achieved, and adjustability accuracy is improved. The 0.3 NM damping shaft is adopted for generating the holding torque, and a comfortable adjusting hand feeling is brought; and the camera part is placed in the middle portion of the adjusting mechanism for structural arrangement, image interference caused by light ray reflection of a vehicle front windshield is effectively reduced, and the degree of purity of images iseffectively improved.

The invention relates to a leek root and peel removal machine comprising a frame body, an upper sponge belt, a lower sponge belt, a transmission device, a cutter device, a rotary air blowing device, aswing rod device and air blowing devices. The upper sponge belt, the lower sponge belt, the transmission device, the cutter device, the rotary air blowing device, the swing rod device and the air blowing devices are arranged on the frame body. In the conveying direction of the transmission device, the cutter device is arranged on the frontmost portion, the rotary air blowing device is then arranged, and the swing rod device and the air blowing devices are arranged on the backmost portion. The two air blowing devices which vertically correspond are arranged. Swing rods of the swing rod deviceare arranged between the two corresponding air blowing devices. During work, when plants, such as leeks and leek shoots, go to the position of the cutter device, the roots of the plants are cut off through cutters, the plants continue to advance to arrive at the rotary air blowing device, and the rotary air blowing device can blow away withered peel of the roots of the leeks, the leek shoots and the like; when the plants arrive at the positions of the swing rod device and the air blowing devices, the swing rods of the swing rod device can be inserted in the roots of the leeks and the leek shoots to further scatter the roots; and air flow is collected to the roots of the leeks, the leek shoots and the like through the air blowing devices, and most of withered leaves can be removed through the strong air flow.

The embodiment of the invention provides a member management method and device based on a decentralized peer-to-peer network technology, electronic equipment and a computer readable storage medium. The member management method based on the decentralized peer-to-peer network technology comprises the following steps: after receiving a target request for managing a member sent by a target terminal, reading target contract information corresponding to target merchant identification information and target member identification information, and responding to the target request according to the target contract information, and recording communication information generated in response to the target request. The method has the advantages that the service shutdown probability is low, the reliability is high, and data are not easy to lose; the response of the target request needs to be based on contract information, random change of membership card information is avoided, safety and reliability are achieved, and rights and interests of consumers and merchants are guaranteed.

The invention discloses an automatic wire stringing and breaking device for a UAV (unmanned aerial vehicle), and relates to the technical field of wire stringing of an electric power system. The device comprises data radios, the UAV and a wire wheel, wherein the data radios are wirelessly connected with the UAV; the wire wheel is mounted on a wire wheel support frame, a damper and a steering gearare arranged on the wire wheel support frame, and the damper is connected with the wire wheel and the steering gear; a casing is arranged on the outer side of the wire wheel support frame, the upper end of the casing is connected with the center of the bottom of the UAV, and the upper side and the lower side of the casing are connected with the wire wheel support frame; a wire rod, an electronic keyhole wire clamping device, a wire breaking device and a wire passing pulley II are arranged in the middle of the lower end of the wire wheel support frame sequentially and are arranged on the outerside of the casing; a wire passing pulley I is arranged on the wire rod, and the wire passing pulley I, the electronic keyhole wire clamping device, the wire breaking device and the wire passing pulley II are connected sequentially through a wire on the wire wheel; the UAV is electrically connected with the steering gear and the wire breaking device.

The invention relates to the field of an intelligent television, and discloses a multi-mode television based on a voice print switching mode, which realizes that different users enter different modesof multi-mode television through mapping of voice print and mode. The multi-mode television comprises: a recording module which converts the user voice into an audio signal supported by the voice processing module; a voice processing module, which obtains the audio signal from the recording module, processes the audio signal, and completes the extraction of the voice print information of the user;an information management module, which completes the preset of the default mode and the information input cipher, completes the direct mapping between the voiceprint information and the mode, outputs the voiceprint information and the mode information corresponding to the voiceprint information to the information storage module, inquires and obtains the mode information to be adopted according to the input voiceprint information, and outputs the mode information to the mode management module and a mode management module, which manages the various modes and completes the switching of the corresponding modes according to the mode information input by the information management module. The invention is applicable to a multimode television.

The invention relates to a communication cabinet with a high-lift antenna. The communication cabinet comprises an antenna, a communication cabinet body, and a power module and communication devices arranged in the communication cabinet. The communication cabinet also comprises an electronic control telescoping rod and a control button connected with each other. The electronic control telescoping rod comprises a motor base and a telescoping rod connected with each other. Based on the technical scheme, the above hardware modules are designed in an improved manner, and the communication cabinet with a high-lift antenna is formed. The antenna is movably arranged on the telescoping rod. On one hand, installation of the antenna is convenient, and on the other hand, according to installation requirements, through adjusting length of the telescoping rod, adjustment aimed at antenna height is realized, thereby effectively improving convenience of communication cabinet installation and use.

The invention discloses a user portrait and block chain technology evidence obtaining method oriented to an academic discarded scene. The method comprises the steps of uploading article information and user operation to a block chain, calculating a user anomaly index through an isolated forest, obtaining scholar basic information by utilizing a crawler program, matching scholar identities, labeling the users with anomaly labels according to identity matching degrees and the anomaly index and the like. According to the method, the block chain technology is used for making up for the unreliability of data, and the data are made non-tampering; and meanwhile, tracing and verification of user behaviors are facilitated. The existing information counterfeiting possibility is detected by matching internal and external scholar data, and the potential bad intention person is labeled, so that the detection accuracy is improved; and abnormal behavior persons are analyzed by adopting an isolated forest algorithm, and suspicious users are labeled. Through the combination of the two aspects, the technical singleness of analysis only depending on text features is supplemented, and the detection efficiency of the endless behavior is improved.

The invention discloses a self-locking float level switch. The self-locking float level switch comprises a non-magnetic pipe, a reed switch, a cylindrical passive float barrel, a float ball, a retainer, an upper magnetic limiting plate, a lower magnetic limiting plate and inner magnets. The cylindrical passive float barrel externally sleeves the non-magnetic pipe, the float ball externally sleeves the cylindrical passive float barrel, the retainer is arranged at the bottom end of the non-magnetic pipe, the upper magnetic limiting plate and the lower magnetic limiting plate are arranged at upper and lower ends of the cylindrical passive float barrel respectively, and the inner magnets are detachably arranged in the non-magnetic pipe. An annular magnet is hermetically arranged in the upper magnetic limiting plate, and the upper magnetic limiting plate is in positional correspondence to the reed switch under a contacted state of the bottom of the float barrel and the retainer. Independent magnets are arranged in the lower magnetic limiting plate, and opposite poles of the inner magnets in the non-magnetic pipe and the independent magnets in the lower magnetic limiting plate are identical in polarity. The self-locking float level switch has advantages that a self-locking effect can be achieved; due to a completely stable float magnetic field system, the float ball is prevented from fluctuating along with water level, magnetic field random variation is prevented, peripheral control circuit simplification is realized, and stability in operation of an execution electric appliance is achieved.

The invention relates to a data processing method and system and a storage device controller. In the method, firstly, providing a storage device coupled to a host; issuing a write-in instruction including a logic access address and first data to the storage device by the host and judging whether the logic access address to be written in the host is one of logic access addresses of file system information; and writing second data into the storage device by the storage device in preset time when the logic access address to be written in the host is one of the logic access addresses of the file system information, wherein the second data is different from first data.

The invention discloses a method for safely calling transaction data, relates to the field of data calling methods, and provides the following scheme for solving the problem that the transaction datacannot be safely called: step 1, establishing a plurality of data transmission paths between a data storage layer and an integrated chip in a data calling server, and increasing the the data calling speed; and step 2, setting a firewall outside the plurality of data transmission paths in the step 1 to prevent viruses from entering the transmission path and changing transaction data. By setting a plurality of data transmission paths and setting firewalls outside the data transmission paths, safe transmission of data is accelerated, meanwhile, time calling trigger conditions are set for the interceptor, instruction transmission is strict, the safety of data calling is improved, malicious instructions are prevented from entering a data storage layer to change data at will, and the transactiondata can be quickly and safely called by means of the data calling instruction.

The invention provides a method and apparatus for examining coupling of calibration quantity and configuration quantity for a vehicle fan, and relates to the vehicle fan examination field. The method comprises outputting a drive signal to a chip pin which controls a vehicle fan; according to the drive signal, determining whether the chip pin is connected with the vehicle fan; if so, setting the value of the configuration quantity as a preset value; and determining whether the value of the calibration quantity is equal to the preset value, and if so, completing examination about coupling of the calibration quantity and the configuration quantity for the vehicle fan. The method for examining coupling of calibration quantity and configuration quantity for a vehicle fan utilizes an ECU (Electronic Control Unit) to automatically identify the fan type for finished automobile configuration, and can examine whether the fan type is coupled with the current selected control data so as to avoid data error caused by manual hand mal-flashing.

The invention discloses a prestress steel strand coil fixing paying-off device. The prestress steel strand coil fixing paying-off device comprises a main frame, a longitudinal connecting rod set, a third vertical supporting rod set and an auxiliary support. The main frame is composed of an upper transversal connecting rod set, a lower transversal connecting rod set, a first vertical supporting rod set, a second vertical supporting rod set, a first connecting rod set and a second connecting rod set. The auxiliary support is formed by connecting the longitudinal connecting rod set, the third vertical supporting rod set and a first transversal connecting rod which is perpendicular to the longitudinal connecting rod set and the third vertical supporting rod set, and the longitudinal connecting rod set, the third vertical supporting rod set and the first transversal connecting rod are located in the same plane. The first transversal connecting rod is provided with a strand clamping and limiting device, and a second transversal connecting rod is provided with a length measuring instrument. Vertical supporting rods of the whole support system are connected with universal wheels. The invention further discloses a manufacturing method of the prestress steel strand coil fixing paying-off device. The prestress steel strand coil fixing paying-off device can guarantee safe and reliable paying-off and has the advantages that the prestress steel strand coil fixing paying-off device can measure the length of the paid-off strand, can be moved and repeatedly used, and has the strand clamping function.

The invention discloses an integral moving type annular wire winding machine, which comprises a machine frame, a machine head, an electric control box, a transmission mechanism, a wire storage ring and a magnetic core clamping mechanism, wherein the machine frame is a three-layer vertical integral aluminum alloy machine frame, and the electric control box is arranged on the upper layer of the machine frame; the machine head, the magnetic core clamping mechanism and a control button assembly are arranged on the middle layer of the machine frame, the wire storage ring sleeves a driving roller ofthe machine head, a driving roll of the driving roller is connected with the transmission mechanism, the magnetic core clamping mechanism is electrically connected with the transmission mechanism, the transmission mechanism is electrically connected with the electric control box, and control buttons on the control button assembly are electrically connected with the electric control box respectively; and the bottom part of the machine frame is provided with a moving assembly. By adopting the three-layer vertical integral type machine frame, the assemblies of the annular wire winding machine are reasonably arranged, a worktable is not required, and thus the annular wire winding machine is convenient to operate; and the bottom part of the machine frame is provided with the moving assembly, the annular wire winding machine can be moved to other space positions of a workshop, the occupied area is small, and the utilization efficiency of the space of the production workshop is maximized.

The invention discloses a face recognition device for on-site construction personnel of collective enterprise outsourcing service, comprises a mobile terminal and a remote server communicatively connected with the mobile terminal, the remote server is provided with a face sample unit for storing the face image of the construction worker of the collective enterprise outsourcing service site and a person safety admittance unit for sending the person admittance information to the mobile terminal. The mobile terminal is provided with a face recognition module, which collects face images and identifies whether a person entering the scene matches an admittance face image sent by a person safety admittance unit to determine whether the person is allowed to enter the scene. The invention realizesthe face recognition of the field construction personnel and the management personnel, prevents the personnel of the outsourcing unit from being changed at will, prevents the personnel of the outsourcing unit with the serious violation history from carrying out the field operation and the like, meets the requirements of the production or development of the electric power network, and is beneficialto improving the production level of the enterprise.

The invention relates to the field of parameter calculation, in particular to a system and method of calculating serum neutralization antibody titer. The system of calculating the serum neutralization antibody titer comprises a recording module, a calculation module, a display module and a storing module, the recording module is used for recording measured experimental data, the calculation module is used for calculating intermediate data and serum neutralization antibody titer data according to the recorded experimental data, the display module is used for displaying the recorded experimental data and the calculated intermediate data and the serum neutralization antibody titer data, and the storing module is used for storing the recorded experimental data and the calculated intermediate data and the serum neutralization antibody titer data. According to the system and method of calculating the serum neutralization antibody titer, the serum neutralization antibody titer is calculated easily, conveniently, fast and accurately, the workload is little, and all the experimental data are effectively protected and stored, and can be remained for next check and use.

The invention relates to the technical field of processing technologies, in particular to a balling parameter setting method of a wire-feeding balling process, and s relates to a designing and optimization method applicable to technological parameters of a nodular cast iron end cover and brake product balling treatment technology. With the balling parameter setting method of the wire-feeding balling process, the technological parameters suitable for each product can be designed according to the thicknesses, weights and casting temperatures of product and product technological requirements of customers, corresponding parameters are selected for balling when needing to make different products, and then the requirement on stable quality can be achieved.

The invention relates to advertising equipment, in particular to an advertising board capable of controlling advertisement putting through wind power, and aims to solve a problem that advertising cloth of an existing outdoor advertising board cannot be rolled up in time under the condition of strong wind weather and thus the advertising board and the advertising cloth are easily blown to be damaged by strong wind. The advertising board capable of controlling advertisement putting through wind power comprises a containing plate, a hollow pipe, a wind direction rotating mechanism, an advertisement folding and unfolding mechanism, a clamping mechanism and the like. The hollow pipe is fixedly arranged on the upper side of the containing plate, the wind direction rotating mechanism is arrangedat the upper end of the hollow pipe, and the advertisement folding and unfolding mechanism is arranged on the hollow pipe and the wind direction rotating mechanism. According to the advertising board,the advertising cloth can be rolled up in time under the condition of windy weather through cooperation of the wind direction rotating mechanism and the advertising folding and unfolding mechanism, so that damage to the advertising board and the advertising cloth caused by windy weather can be reduced.

An anti-collision conveyor belt protection device for furniture production, including a support plate, a bar-shaped groove is set on the right side of the support plate, and a lead screw is rotated in the bar-shaped groove. The upper and lower sides of the upper and lower sides are respectively threaded to install the nuts, the right sides of the outer circumference of the nuts are respectively fixedly connected to the left side of the slide plate, and the right sides of the slide plate are respectively provided with vertical sleeves, the first one-way valve is fixedly installed in the sleeves, and the left side of the support plate The side is fixedly connected to the right side of two gears distributed up and down, and the middle of the opposite side of the gears is respectively connected to the inner end of the vertical pipe by bearing rotation, and the second one-way valve is fixedly installed in the vertical pipe respectively. The present invention can adjust the shape of the clamping surface formed by the support plates according to the shape of the transport furniture, and can assemble the number of support plates arbitrarily according to the size of the transport furniture, and at the same time, the spliced ​​support plates can be folded to facilitate the placement of the support plates , can meet the market demand and is suitable for promotion.

The invention discloses a self-locking float level switch. The self-locking float level switch comprises a non-magnetic pipe, a reed switch, a cylindrical passive float barrel, a float ball, a retainer, an upper magnetic limiting plate, a lower magnetic limiting plate and inner magnets. The cylindrical passive float barrel externally sleeves the non-magnetic pipe, the float ball externally sleeves the cylindrical passive float barrel, the retainer is arranged at the bottom end of the non-magnetic pipe, the upper magnetic limiting plate and the lower magnetic limiting plate are arranged at upper and lower ends of the cylindrical passive float barrel respectively, and the inner magnets are detachably arranged in the non-magnetic pipe. An annular magnet is hermetically arranged in the upper magnetic limiting plate, and the upper magnetic limiting plate is in positional correspondence to the reed switch under a contacted state of the bottom of the float barrel and the retainer. Independent magnets are arranged in the lower magnetic limiting plate, and opposite poles of the inner magnets in the non-magnetic pipe and the independent magnets in the lower magnetic limiting plate are identical in polarity. The self-locking float level switch has advantages that a self-locking effect can be achieved; due to a completely stable float magnetic field system, the float ball is prevented from fluctuating along with water level, magnetic field random variation is prevented, peripheral control circuit simplification is realized, and stability in operation of an execution electric appliance is achieved.

An electronic invoice issuing method provided by the present invention includes that the invoice issuing terminal sends an authorization request to the tax server before issuing the invoice, and the tax server generates an authorization code according to the authorization request and feeds it back to the invoice issuing terminal; the invoice issuing terminal issues an authorization code after receiving the authorization code. Electronic invoices, and transmit the issued invoice information and the verification code generated while issuing the current invoice to the tax server, and set the verification code on the face of the invoice, which can effectively prevent false issuance and counterfeit invoices during the invoicing process It is also beneficial to check the invoice after it is issued, so as to further prevent the occurrence of false invoices and counterfeit invoices.