201results about How to "Optimal implementation method" patented technology

The invention discloses an intelligent oil fume exhaust ventilator wind speed adjustment method, which comprises: collecting an image below an oil fume exhaust ventilator; detecting the edge of the image to obtain the target area of the stove in the image; treating the target area of the stove in the image or treating the video stream of the target area of the stove to obtain smoke information; generating and outputting a wind speed adjustment command to a wind speed adjustment device according to the smoke area and the smoke level; and adjusting the wind speed of the oil fume exhaust ventilator by the wind speed adjustment device. The invention further discloses an intelligent oil fume exhaust ventilator wind speed adjustment apparatus using the intelligent oil fume exhaust ventilator wind speed adjustment method, wherein the intelligent oil fume exhaust ventilator wind speed adjustment apparatus comprises a camera, a control chip and a wind speed adjustment device, wherein the camerais used for collecting the image below the oil fume exhaust ventilator, and the camera and the wind speed adjustment device are respectively connected to the control chip. According to the present invention, with the method and the apparatus, the stove area is imaged, and the obtained image is treated to obtain the smoke area and the smoke level, such that the smoke concentration can be accurately judged, and the wind speed of the oil fume exhaust ventilator can be accurately adjusted.

The invention relates to a multiple information encrypted two-dimensional code anti-counterfeiting method, which comprises the steps of generating an encrypted serial number through carrying out algorithm encryption on a digital serial number, acquiring an image containing the encrypted serial number by using a screenshot method, carrying out dimension adjustment, image graying and image scrambling processing on the encrypted serial number to acquire a secret image, inserting the secret image into a two-dimensional image by using a bit operation method by taking a two-dimensional code as a carrier so as to acquire a mixed two-dimensional code which is finally used for printing; and acquiring the encrypted serial number through extracting the secret image in the two-dimensional code and carrying out anti-scrambling processing when information verification is carried out, then acquiring a decrypted serial number by adopting a decryption algorithm, and distinguishing authenticity of information through comparing the decrypted serial number with an original serial number. The method provided by the invention realizes two-dimensional anti-counterfeiting by combining simple information algorithm encryption and a method of image conversion and image concealing. The method is easy to implement, does not influence the information capacity of the two-dimensional code, and has very good anti-counterfeiting performance.

The invention discloses a cloud resource access control method based on a dynamic cross-domain security token. The method includes that 1) an access agent is preset on a cloud resource service providing party and requests a dynamic security token for each dynamic temporary user to the cloud resource providing party; 2) the cloud resource providing party generates the dynamic security token, sets the access strategy and transmits the strategy to the dynamic temporary users; 3) a sharing secrete key is respectively set between each dynamic temporary user and the cloud resource providing party; 4) the dynamic temporary users conduct signing on the access request through the sharing secrete key and transmit the authentication request news to the cloud resource providing party; and 5) the cloud resource providing party conducts signing on the authentication request news through the sharing secrete key, authentication passes if signatures are identical, the access strategy of the dynamic security token and the access agent is judged, and the access request of the dynamic temporary users is responded according to judgment results. The method achieves the high-efficiency cross-domain authentication mechanism and is high in judgment efficiency.

The disclosed method is realized based on video multicast by using Internet group management protocol (IGMP) Proxy/Snooping. The method includes following operations: (1) for each optical network unit (ONU), the system defines their ID i.e. ONU ID, and defines each multicast ID for multicast group of video service stream in different content; (2) using structure from point to multipoint of Ethernet passive optical network (EPON), the method combines IGMP with down going broadcast mechanism of EPON network to realize single copy multicast of same video service stream in EPON network. Overcoming disadvantages of low use ratio of multicast bandwidth, the method reproduces only one piece of video service stream for each group on OLT for users in same group share. The invention saves network bandwidth, lowers network load. Features are: easy of implementation, forward compactable and easy to realize intercommunication with multicast protocol of data network IGMP.

The adaptive control process includes steps: logging in user ID; reading and transferring user information; searching and transferring information of strategy; controlling device based on the said information of strategy. The disclosed adaptive control system includes following parts: RFID tag of user ID in use for identifying user ID; RFID of reader in use for collecting information; strategy module of knowledge base in use for storing strategy information for devices, and processing data; device controller in use for transferring data and controlling device. RFID tag is attached to user body. RFID reader, device controller, and knowledge base are connected in sequence. The device controller is connected to home electronics. Through adaptive mode, the invention implements remote, no contacting type control for home electronics so as to raise intelligentized and individualized degree of home electronics.

The present invention provides an appliance identification method used in passive optical operation navigation, pertaining to the application field of the information technology in clinic. Firstly, the sign points of appliances to be identified are distributed as follows: the shape of the fixed sign point on each appliance is totally the same but the distance among the sign points on the same operational appliance is different and the distance among the sign points on different appliances is obviously different. In detection, the binocular vision principle is firstly utilized to detect the sign points in the three-dimensional space; then a match detection is carried out according to the geometric relationship among the sing points according to the known sign points on the appliances; if such combination can be found, the match is completed and the appliance is thought to be constituted by the selected sign points. The advantages of the present invention include making the passive tacking and positioning of various operational appliances only by using one kind of sign points with same specifications, increasing the interchangeability of damageable sign points and reducing the cost for replacing sign points.

The invention relates to a charge circuit with USB interface, wherein it uses the pin connected to USB interface chip to switch NMOS tube, to generate different feedbacks of two resistances that connected to the charge chip, to switch different charge currents on USB interface. The invention also discloses relative charge method, which inquires USB protocol and detect USB interface, to switch difference charge currents. The invention can charge device via USB interface anywhere, to automatically switch 100mA and 500mA currents.

The invention relates to a thin plating type cold-rolled tinned steel plate and a manufacturing method thereof, and aims at solving the technical problem of high porosity of a tinned layer of a cold-rolled tinned steel plate of which the thinned layer on one surface is 0.9-2.2g/m<2> in weight. The thin plating type cold-rolled tinned steel plate is characterized in that a base plate comprises the following chemical components in percentage by weight: 0.05-0.10% of C, not greater than 0.04% of Si, 0.2-0.4% of Mn, not greater than 0.02% of P, not greater than 0.02% of S, 0.02-0.05% of Alt, not greater than 0.004% of P, not greater than 0.0035% of N, and the balance Fe and inevitable impurity elements. The thin plating type cold-rolled thinned steel plate is mainly applied to the packing fields such as the beverage and food tin packing field.

The invention discloses a variable-speed permanent-magnet alternator system and a double-port voltage stabilization control method therefor. The system comprises a permanent-magnet alternator, a PWM (Pulse Width Modulation) rectifier, a DC filtering device and a controller, wherein the controller comprises a rotor position and rotational speed detection module, a DC voltage detection module, a DC current detection module, an AC voltage detection module, an AC current detection module, a coordinate transformation module, a first regulator, a second regulator, a current limit module and a PWM generating module. The method provided by the invention comprises the following steps: acquiring the position, the rotational speed, the DC voltage and current, and the AC voltage and current of the alternator rotor; and acquiring the quadrature-axis and direct-axis currents through coordinate transformation, so as to stabilize the DC and AC voltages for setting values and achieving amplitude limit to quadrature-axis and direct-axis currents generated by a target subjected to closed-loop control and generate PWM trigger pulses to control the PWM rectifier. By adopting the invention, double-port voltage stabilization of a DC and AC output terminal is maintained when the rotational speed of the alternator changes, the cost is low and the reliability is high.

The invention discloses equipment and a method for automatically detecting mass concentration of organic carbon/elemental carbon in atmospheric aerosol. The method comprises the following steps of: firstly, collecting particles to be detected on a quartz filter film; and heating the quartz filter film loaded with the particles in the environment of He gas, taking the carbon volatilized during the temperature rise as the organic carbon, heating the quartz filter film in the environment of He/O2 carrier gas, during which the elemental carbon is oxidized, decomposed and escapes. Through the whole process, a laser beam is irradiated on the quartz film, the transmission light of the laser beam is weakened in the carbonization of the organic carbon and strengthened in the oxidizing decomposition of the elemental carbon. The dividing point of the organic carbon and the elemental carbon is decided at the time when the transmission light of the laser beam recovers the original optical intensity, namely the carbon detected before the time is taken as the organic carbon, and the carbon detected after the time is taken as the elemental carbon. The equipment consists of the quartz filter film, a combustion furnace, an oxidation furnace, a CO2 detector, and a laser detection unit. The method realizes detecting the mass concentration of the organic carbon/elemental carbon in the atmospheric aerosol more scientifically and accurately.

The invention discloses a method for reducing power consumption of a GSM base station, comprising the following steps of: setting the working mode of the GSM base station; generating and sending control signals of a power amplifier bias switch according to the working mode of the GSM base station when the GSM base station runs; and switching on or switching off the power amplifier according to the control signal of the power amplifier bias switch. Correspondingly, the invention further provides a device for reducing power consumption of the GSM base station, comprising a setting module for setting the working mode of the GSM base station, a generation and sending module mode for generating and sending the control signal of the power amplifier bias switch according to the working mode of the GSM base station, and a power switch of the power amplifier for switching on or switching off the power amplifier according to the control signal of the power amplifier bias switch. Therefore, the invention can reduce the power consumption of the base station with large amplitude in real time, and can be easily realized.

The invention discloses a swelling soil humidifying and swelling numerical simulation method under the rainfall infiltration condition. The swelling soil humidifying and swelling numerical simulation method comprises the following steps: adopting a fluid-solid coupling module and compiling a relevant FISH language program, and realizing the relation of change of the non-saturated region matrix suction, the non-saturated permeability coefficient and the soil strength parameter along with the moisture content in the unsaturated seepage process; then based on the 'humidity stress field theory', according to the similarity of a seepage continuity differential equation and a heat conduction equation, deducing the equivalent conversion relation of a thermodynamic parameter and a seepage parameter, and adopting a thermodynamic module to realize swelling soil swelling deformation process under the humidifying condition. According to the swelling soil humidifying and swelling numerical simulation method, the swelling soil humidifying and swelling whole-process numerical calculation under the rainfall infiltration condition can be effectively and comprehensively realized, so that effective scientific guidance means are provided for engineering design and construction in the high-risk area of the swelling soil engineering disaster, and meanwhile application of the computational soil mechanics to the technical fields of practical engineering construction, geological disaster prevention and control, and the like, is powerfully driven.

The present invention relates to a method and a system for data synchronization between different databases. The method comprises the steps of S1. reading to-be-synchronized table data in a source database to a first text file, and reading to-be-synchronized table data with the same name in a target database to a second text file; S2. carrying out data comparison between the first text file and the second text file according to a unique indexing manner, so as to obtain a comparison result; S3. carrying out data synchronization on the comparison result so as to obtain a data synchronization result; and S4. outputting the data synchronization result. The present invention provides a scheme for implementing table data synchronization between different ORACLE databases based on the fourth dynamic SQL of an ORACLE PROC language, so that synchronization can be carried out on three dimensions of the time quantum, the total amount and the table name according to production requirements, and can be extended to more processes, in the absence of table information, only knowing the name of the to-be-synchronized table can complete synchronization, and different synchronization logics can be implemented and different business scenarios can be satisfied.

An apparatus for pneumatically conveying bulk material comprising a conveying pipe, a conveying gas source, and a plurality of removal points. The conveying pipe forms a conveying path for the bulk material. The conveying gas source is connected to the conveying pipe and is configured to supply conveying gas in the direction of the conveying path. The removal points allow gas to be removed from the conveying pipe. The removal points are arranged on the conveying pipe at a distance from one another along the conveying path, and are adjustable in terms of quantity of gas flow to be removed from the conveying pipe. Controlled removal of excess gas from the conveying pipe can therefore be achieved to reduce the gas velocity, such that the conveying remains steady and stable without a stepwise increase in the cross section of the conveying pipe along the conveying path.

The invention discloses a bird image recognition method by multilayer sparse coding features. Firstly, a cascaded multilayer sparse coding structure is used on R, G and B channels of a local image block for extracting sparse coding features, wherein each layer of sparse coding structure comprises a feature coding part and a feature maximum value extraction part; and then, in the aspect of output features, the multilayer sparse coding features use a linear kernel for fusion, and an SVM is used as a classifier for classified judgment. In the multilayer sparse coding structure, a local constraint term is added to an optimization objective function, a solved approximate solution for the objective function is iteratively used for sparse coding in the feature coding part, the coding values are then used for minimally reconstructing errors, and a dictionary is updated. According to the bird image recognition method by multilayer sparse coding features, the bird image recognition precision by the system can be greatly improved.

The invention discloses a flexible active pressure sensor structure and a preparation method. Flexible piezoresistive material is used for preparing source and drain electrodes of a flexible active field effect transistor to realize a pressure sensor unit structure, and a semiconductor single-walled carbon nanotube serves as channel material for constructing a flexible active field effect transistor for controlling the pressure sensing signal reading. The flexible active pressure sensor structure and the preparation method provide a very convenient implementation method for the large-scale application of the flexible pressure sensor and have a very important application prospect.

The invention relates to the technical field of image processing and mode recognition, and discloses a face feature point detection method based on ASM. The method also describes extra features of face feature points on the basis of traditional ASM algorithm. Specifically, the method describes HOG information of neighborhood in addition to local texture features, combines a HOG feature vector with a texture feature vector to form a feature descriptor which can provide higher resolution. Therefore, the method can fast and accurately select candidate feature points, and effectively increase the speed and precision of face feature point detection.

The invention discloses a credible power access control method based on a block chain, the method is realized based on a data system in a distributed environment, and the system consists of a front-end web page and the block chain. Due to the characteristics of the block chain, the storage performance of the platform is weak, and the platform only stores the data access address without providing adata storage function. Wherein the front end consists of a Vue framework and Web3.Js for calling a block link port; the block chain platform uses an Ethereum platform, the Solidity language is used on the Ethereum platform to compile the logic of the intelligent contract, and as the Solidity language realizes the complete intelligent contract programming of the graph, the method is based on the private chain deployed by the Ethereum platform. According to the method, the problem that divergence and conflicts may be generated after data exchange among users is solved through power and energy exchange operation chaining, the problem is rapidly positioned, and objective, real and effective proof is provided; and the management cost and the maintenance cost are greatly reduced, and meanwhile,the risks of attacks, privacy leakage and the like caused by centralized management are also avoided.

This invention discloses one mobile communication system HUSPA outer ring power control method, which comprises the following steps: basic station reporting agreement data unit PDU to test small area wide band total power RTWP to RNC by use of PDU or BLER and remaining BLER; then using RNC by use of BLER to adjust power bias displacement and maximum coils number; then sending RRC order to UE of E-DCH power displacement and maximum coils to re-matching assistant UE and TFC selection to fulfill outer ring control.

The invention relates to a method for construction and service of time tag business data for communication, which belongs to the technical field of communication. The method comprises the following steps: receiving a service request of a client through a server at first, analyzing business contents in the request and time tag information corresponding to the contents, and packaging the original data to form a business data packet according to the granularity of the time tag information; adding the time tag information into the business data packet to form a primary business data packet; obtaining a priority level of the primary business data packet according to the time tag information, and constructing time tag business data; determining a transmission sequence through the server according to the network communication capacity, the priority level and the time tag information; configuring the number of resources for storage, computation and communication of each time label business data; and transmitting the business contents of the request to the client and charging according to the transmission sequence. The invention makes the business flow in the network smooth, and eases the tension of resource allocation and the pressure for upgrading the network equipment.

The disclosure provides a client interaction method and device; the method comprises the following steps: sending an obtaining request related to a current account of the client to a sever, wherein the current account comprise a shared account or a subaccount, and the shared account is related to one or more subaccounts; receiving display information sent by the server responding to the obtainingrequest; displaying the display information, wherein when the current account is the shared account, the display information comprises one or more sharing information; if the current account is the subaccount, the display information contains one or more sharing information and one or more exclusive information of the subaccount. The disclosure also provides a server interaction method and device.

The invention discloses a for detecting organic volatile matters by using a zirconium-based sensor. The zirconium-based sensor comprises a zirconium-based solid electrolyte base layer and a reference electrode and a sensitive electrode which are arranged on the zirconium-based solid electrolyte base layer, the reference electrode is a platinum electrode, the sensitive electrode is a zinc oxide photosensitive electrode. The concrete detection method comprises the following steps: connecting the zirconium-based sensor with a data receiving and processing device, arranging an ultraviolet ray irradiation device above the zinc oxide photosensitive electrode, arranging a heating device used for heating the zirconium-based solid electrolyte base layer, heating the zirconium-based sensor to 400-450 DEG C by using the heating device, keeping the temperature, continuously irradiating ultraviolet lights with the wavelength of 365-385 nm on the sensitive electrode by using the ultraviolet ray irradiation device, and obtaining organic volatile matter detection data with a low detection limit through the data receiving and processing device. The method can obtain a good measurement effect in a gas measurement range of 0-645 ppm, and can reach the low detection limit of 0.1-2 ppm.

The invention discloses a hypersonic flight vehicle reentry guidance method under terminal time constraint, and mainly solves a terminal time constraint problem of cooperative attack tasks of multiple hypersonic flight vehicles. The implementation method comprises the following steps that a parameterized U-shaped direction angle deviation corridor is designed for controlling the course angle and the terminal time of an aircraft; a dynamical model with attack angle and heeling angle control profile compensation and a fourth-order Adams integral method are adopted to predict the terminal reentry time, and a time difference is obtained; and the time difference is eliminated by adjusting the boundary width coefficient of the U-shaped corridor on line so that the terminal reentry time control of the hypersonic aircraft is realized. According to the guidance method disclosed by the invention, the terminal time constraint can be well met through the transverse lateral heeling angle reversal logic under the condition that the tracking precision of longitudinal states such as height and speed is not influenced, and an effective solution is provided for the collaborative attack guidance problem of the hypersonic flight vehicle.

The invention discloses a spatial positioning method and system for an aerial refueling drogue sleeve, and relates to the technical field of aerial refueling. Install a red reflective film on the end face of the refueling drogue sleeve, and use the camera to collect the image of the refueling drogue sleeve, and then perform spatial positioning on the refueling drogue sleeve, which is convenient for modification and easy to implement, and does not contain LEDs and other similar electrical components, avoiding the refueling process security risks. The combination of ring features and color features, supplemented by a strong light source, makes the refueling drogue sleeve have stronger visual features and higher positioning accuracy, thereby improving the success rate of aerial refueling docking.