66results about How to "Solve access problems" patented technology

A random access channel resource allocation method and system. The present invention relates to the field of communications and solves the problem of MTC UE access in LTE / LTE-A systems. Said method comprises: a first node sends random access channel resource allocation information to a second node, said random access channel resource allocation information being instructed by one or more amounts of random access channel configuration information. The technical solution provided in the present invention embodiment is applicable to LTE / LTE-A networks and achieves the allocation of MTC UE random access channel resources within LTE / LTE-A systems.

The invention discloses an optimization method for a speaking time of a barrage in a live website. The optimization method comprises the following steps: receiving a barrage request transmitted by a user who successfully logins to a website studio; judging whether the user has a permission to speak according to the barrage request; if so, then judging the identity of the user according to the barrage request; when the identity of the user is an uncommon user, then transmitting an inform that the speaking time is unlimited to the user, and displaying a barrage content corresponding to the barrage request; when the identity of the user is a common user, then judging whether the user is a top user of the website studio according to the barrage request; and if so, then setting a corresponding limited speaking time for the user according to the ranking condition of the user in the website studio. The optimization method for the speaking time of the barrage in the live website provided by the invention can solve the technical problems in an existing barrage live broadcast platform that malicious users occupy a display area of the whole reviews, thus the use and access of normal users are interfered, and the speaking time of users with a higher contribution degree is limited and the degree of participation of the users is affected.

This invention discloses one method to realize intelligent card multiple application, which comprises the following parts: at least one capacitor to store data on each subject with each one composed of at least one application subject set; operation interface of capacitor to realize common needle subject operation. This invention can use capacitor by intelligent card and subject concept application data to provide common operations for outer process.

The invention discloses a distributed type gradient algorithm based microgrid energy storage unit optimization control method. The microgrid energy storage unit optimization control method comprises the steps of establishing a power grid power balance model for the microgrid; determining the relations between the charging-discharging efficiency of the energy storage unit and the charging-discharging power, and between the charging-discharging efficiency of the energy storage unit and the state of charge separately according to the electric energy loss in the charging-discharging process of the energy storage unit in the microgrid; carrying out modeling and analyzing on the charging-discharging process of the energy storage unit by taking the minimized electric energy loss in the charging-discharging process of the energy storage unit as the target function; optimizing and solving the established charging model for the energy storage unit based on a multi-agent system by fully utilizing the distributed type gradient algorithm to obtain a model optimal solution; and obtaining a charging-discharging strategy of the energy storage unit according to the model optimal solution, and controlling the implementation of the charging strategy. According to the optimization control method, the energy storage unit in the microgrid is optimized and dispatched, so that an optimization result equivalent to that obtained in a centralized method can be obtained; and in addition, the optimization control method is low in implementation cost, flexible and extensible, and capable of effectively solving the problem existing in the access of the large-scale battery energy storage system.

The invention provides a power cloud platform based power utilization information acquisition system. The system comprises an acquisition terminal and a power cloud platform, wherein the acquisition terminal is used for acquiring power utilization information of a user and sending the acquired power utilization information of the user to the power cloud platform; the power cloud platform is used for finishing the storage, calculation and security management of the power utilization information of the user; and the power cloud platform comprises a prepositive server, a cryptographic machine, a database server, an application server, a memory and an exchanger. According to the system, the problems of an existing power utilization information acquisition system in concurrence of a large amount of terminals and data security are solved, so that the system stability and security are improved.

The invention provides an access detecting method, which is applied to the access terminal, comprising the following steps: A, initiating authentication to the authentication switch to make the authentication switch open the corresponding port to access the network for the access terminal; B, after checking the authentication, counting the packet sending number of the device; C, obtaining the packet receiving number counted by the switch on the corresponding port from the predetermined packet sent by the authentication switch, and comparing the packet receiving number with the packet sending number counted by the device, if the packet receiving number is greater than the packet sending number, determining the existence of the illegal user. According to the access detecting method, the existence of the illegal access user is determined by comparing the packet sending number of the access terminal with the packet receiving number of the authentication switch on the corresponding port, thereby effectively solving the problem that the illegal user pretends to be the legal user through Hub in the prior art.

The invention belongs to the technical field of visible light communication and particularly relates to a visible light communication multiple access implementation method and system based on subcarrier modulation. The method and system are mainly based on the subcarrier modulation technology and the band splitting technology, multi-order encoding with high spectrum efficiency is utilized, and high-speed multiple access based on the visible light communication is achieved through the bandwidth allocation scheme with optimized configuration. The visible light communication multiple access implementation system comprises a high-order coding modulation module, a subcarrier modulation module, a photoelectric detector, a digital band-pass filter, a channel estimation module and a decoding module, wherein the high-order coding modulation module and the subcarrier modulation module are connected with the sending end in sequence; the photoelectric detector, the digital band-pass filter, the channel estimation module and the decoding module are connected with the receiving end in sequence. On the condition of ensuring the coverage area, the high-speed visible light communication multiple access with the wholly covered spectrum resources, the high spectrum efficiency and the exclusive user bandwidth is achieved.

The invention discloses a shift-out lifting parking device, which comprises a guide rail, a steel structure frame, a car carrying board, a movable drive device, a car carrying board lifting device, a control system and a safety protection system, and is characterized in that the upper layer of a parking device is a mechanical automotive parking region, two parking spaces are arranged in parallel, the automobile is parked on the car carrying plate, and the parking direction is parallel to a passage; the lower layer of the parking device is a self-propelled automotive parking region, two parking spaces are arranged in parallel, the automobile is parked on the ground, and the parking direction is vertical to the passage; when the automobile enters and exits the upper-layer parking space, the parking device is integrally moved to the passage, the car carrying plate is fallen to the group for causing the automobile to come in or come out, the car carrying plate is lifted after completion, and the parking device integrally returns to a parking region. According to the shift-out lifting parking device, through upper-layer mechanical parking and lower-layer self-propelled parking, the automobiles enter and exit the upper parking space and the lower parking space without intervention, and the shift-out lifting parking device has the advantages of simple integrated structure and convenience for use.

The invention discloses an operator recognition method and device, and an Internet access system. The operator recognition method and device, and the Internet access system belong to the field of Internet technology. The method includes the following steps of: obtaining BSSIDs and gateway IP addresses for a terminal accessing a WiFi network; determining current operators corresponding to the WiFinetwork according to the gateway IP addresses; searching for historical operators corresponding to the WiFi network in a pre-stored mapping relation according to the BSSIDs, wherein the pre-stored mapping relation is used for indicating a mapping relation between the BSSIDs and corresponding operators; and recognizing whether the WiFi network belongs to small operators according to the current operators and the historical operators, wherein the small operators refer to operators without an AS number. Embodiments of the invention detect whether the operators corresponding to one BSSID change, so that the WiFi network provided by the small operators can be recognized.

The invention provides an access control method and an access network device. At least one cell requiring access control and a service corresponding to the access control are determined by the access network device to enable the access network device to control the service access of user equipment (UE) in the at least one cell via an AC (Access Class), so as to achieve the service access of the UE on the basis of the AC, solve a problem in the prior art that an access network device only controls the access of the UE within at least one AC, and further improve the flexibility of the access control.

The invention discloses a grain-bulk pipe-inserted curtain-wall ventilating system. The grain-bulk pipe-inserted curtain-wall ventilating system is structurally characterized in that negative-pressure draught fans (2) are arranged on the two sides of a granary (1), and air outlets of the negative-pressure draught fans (2) are connected with ventilating space (3), located at the upper portions of grain bulks (6), in the granary (1) through functional devices (5); a porous air inlet pipe (4) communicated with the ventilating space (3) is arranged in the grain bulks (6); porous ventilating board curtain walls (7) are arranged on the inner side of the inner side wall of the granary (1), air outlet channels (8) are formed in the inner walls between the porous ventilating board curtain walls (7) and the granary (1), air inlets of the negative-pressure draught fans (2) are communicated with the air outlet channels (8), and the tops of the grain bulks (6) are covered with a plastic film (9). According to the grain-bulk pipe-inserted curtain-wall ventilating system, a ground cage and a geosyncline ventilating system of an original granary are completely omitted, a grain transporting device can directly enter the granary, and the in-and-out granary efficiency is greatly improved; due to formed transverse ventilating, center cooling can be achieved in a layered and directional mode, heat gathering can be solved in a layered and directional mode, and implementation and operation are easy.

The invention discloses a reaction system for extraction of a heated solvent of coal and a reaction method. The reaction system comprises a plurality of sets of premixing and stirring devices which are arranged to be in parallel. The outputs of the premixing and stirring devices are communicated with inlets of tubular-type reactors, and transportation of materials is achieved through a pressurized feeding device. The outlets of the tubular-type reactors are communicated with a plurality of sets of post-treatment devices which are arranged to be in parallel and used for separating the material liquid after reaction. The system can stir materials in different phases through the premixing and stirring devices, and achieves uniform contact and flow of the materials in different phases in a reaction pipe. The high efficiency and continuous operation of the system can be ensured. Through alternate operation of the plurality of sets of premixing and stirring devices and post-treatment devices, the continuous operation of operating processes can be achieved. The system has advantages of low requirements to devices, short technological process and low device cost.

The invention relates to a high-temperature high-pressure autoclave and a using method thereof, which are used for a reaction process when gas phase, liquid phase and solid phase exist simultaneously, especially for a process of requiring filtering solid particles after reaction. The reaction autoclave can be operated and used under high-temperature high-pressure conditions, achieves direct feeding, hot filtering and discharging solid matter on the premise of not opening an autoclave body, cleans a filter element through nitrogen blowback and ensures continuous equipment operation. The reaction autoclave has the advantages of being high in equipment integration degree and easy to operate and is especially suitable for a hot extraction process under high-temperature high-pressure conditions.

The invention relates to an OFDM (Orthogonal Frequency Division Multiplexing) system fast access searching method and device, and the method comprises the steps: collecting an OFDM signal, extractinga low-speed OFDM signal, and keeping the high-speed OFDM signal; Performing autocorrelation calculation on the low-speed OFDM signal to obtain an access point fuzzy interval of the OFDM system; Performing frequency offset calculation and frequency offset calibration on the high-speed OFDM signal in the fuzzy interval of the access point; And performing accurate synchronization calculation on the high-speed OFDM signal and the local synchronization signal after frequency offset calibration so as to obtain the access point of the OFDM system. According to the invention, coarse synchronization iscarried out by using low-speed OFDM signal autocorrelation; The method comprises the following steps: obtaining an access point fuzzy interval by using a local synchronization signal, performing frequency offset calculation and correction on a high-speed OFDM signal in the access point fuzzy interval, and finally performing cross-correlation by using the high-speed OFDM signal and the local synchronization signal to obtain an accurate access point, thereby solving the problems of fast cell search and user access of a private network.

The invention discloses a hybrid video acquisition control system and an unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicle image transmission. The hybrid video acquisition control system comprises a front-end user module, a data acquisition module, a server module and a big data cloud storage module, wherein the front-end user module is connected with the server module, and used by a user to browse acquired data and to control terminal acquisition equipment; the data acquisition module is arranged on the unmanned aerial vehicle, and used for acquiring datainformation; the server module is connected with the front-end user module, the data acquisition module and the big data cloud storage module respectively, and used for performing equipment control onthe unmanned aerial vehicle, and performing reading and writing control on data in the big data cloud storage module; and the server module is developed and implemented by an MFC technology. The technical scheme has the beneficial effects that multiuser, multi-equipment and cross-platform data query and access are supported, and fusion of heterogeneous devices can be realized.

The invention discloses a method, a device and a system for selecting cells. The method comprises the following steps of measuring signal quality of current cells; selecting cells whose required signal quality thresholds are smaller than a measurement value of signal quality according to the measurement value of the signal quality of each cell, which is obtained through measurement; and judging whether a special cell for machine type communication MTC exists according to the attributes of the selected cells and accessing the corresponding cells according to a judging result. By adopting the technical scheme provided by the invention, a problem of the lack of MTC equipment for selecting the corresponding cells to be accessed is solved.

The invention discloses a door type three-dimensional garage. The door type three-dimensional garage is composed of a fixed frame, steel beams, a movable trolley, a car carrying plate, a trolley moving device, a car carrying plate lifting device, a control system, a safety protection system and the like. The door type three-dimensional garage is arranged in a bilateral symmetry mode with a channelas the axis, car storing and taking of cars on the upper layer are achieved through moving of the movable trolley and lifting of the car carrying plate, and cars are parked on the ground with self-propelled parking spaces on the lower layer; and meanwhile, a protective shed of a fixed frame steel structure ensures parking on the lower layer and the safety of personnel.

Disclosed is a magnetic card protector which can overlap and expand at vertical direction. In the transparent box body, the three-dimensional located structure can arrange the cards in order up and down. The right side of the body is provided with longitudinal and transverse slide ways with a card-taking button on the transverse slide way. The card-taking button can freely move on the slide ways back and froth and up and down. A card lifter is installed on the card-taking button. When the card is in need, the card-taking button is moved from the transparent box body, the card lifter is aimed at the objective card, and the card-taking button is pulled to drive the longitudinal slide board upward. The spring cover hook on the flip is daffed, and with the force of the torsion spring, the flip is widdershins flicked by the torsion spring and the card is pulled out of the box. In order to avoid the demagnetization phenomenon of piled cards, a magnetism-protection disk which can shield electric field and magnetic field is inserted between two magnetic cards. The advantage of the utility model is the convenience of card taking, synchronously, the card magnetism is well protected. Moreover, the structure is facile. The protector is of high quality, and can be used in everyday life with interests.

The invention relates to the field of power equipment, in particular to an intelligent energy controller which comprises an RS485 communication module, a micropower wireless communication module, a WIFI communication module and an MCU controller. The R485 communication module is used for receiving a control instruction of the MCU controller, establishing communication according to the control instruction, and sending data acquired from the medium-low voltage power equipment or the low-voltage user equipment to the MCU controller; the WIFI communication module is used for receiving a control instruction of the MCU controller, establishing communication according to the control instruction, and sending data acquired from the medium-low voltage power equipment or the low-voltage user equipment to the MCU controller; the micropower wireless communication module is used for receiving a control instruction of the MCU controller, establishing communication with a cloud server according to thecontrol instruction and sending data acquired from the MCU controller to the cloud server; the invention has the following beneficial effects: a plurality of devices can be accessed through a plurality of different communication modes; and a modular design is adopted, so that various communication modules can be increased or decreased as required.

The invention discloses a double-layer moving-out lifting stereo garage. The stereo garage is composed of a fixing frame, a movable parking frame, vehicle carrying plates, a parking frame moving device, a vehicle carrying plate lifting device, a control system, a safety protection system and the like. According to the double-layer moving-out lifting stereo garage, an upper-layer mechanical parkingspace and a lower-layer self-propelled parking space are arranged at 90 degrees, the movable parking frame moves to the position of a channel when vehicles entering and exiting the upper-layer parking space, then the vehicle carrying plates are lowered, so that the lower-layer self-propelled parking space is avoided, and therefore the access problem of the vehicles at the upper-layer is solved; and no rail is arranged on the ground, so that the passing of the vehicles is not affected, and meanwhile, the safety of parking at the lower-layer and personnel is guaranteed by a fixed-frame steel structure protective shed.

The invention discloses a cooling mechanism for a threaded shaft of a water feeding pipe die. The cooling mechanism comprises a fixed die seat plate and a movable die seat plate, wherein a fixed die fixing plate, a fixed die gear plate, a fixed die bearing plate and a cavity plate are arranged below the fixed die seat plate; a cavity threaded shaft is arranged in the cavity plate; a die foot is arranged on the movable die seat plate; a movable die gear plate, a movable die bearing plate and a core plate are arranged on the die foot; a core threaded shaft is arranged in the core plate; the head of the core threaded shaft corresponds to that of the cavity threaded shaft; the core threaded shaft and the cavity threaded shaft respectively form a cavity together with the cavity plate and the core plate; a formed pipe is arranged in the cavity. The cooling mechanism is characterized in that water sealing glands are arranged at the end parts of the cavity threaded shaft and the core threaded shaft; framework sealing rings are arranged in the water sealing glands; lips of the framework sealing rings are in contact with the outer walls of the end parts of the cavity threaded shaft and the core threaded shaft; cooling water pipes are respectively arranged in the cavity threaded shaft and the core threaded shaft; cooling water holes are formed in the water sealing glands; the cooling water pipes are communicated with the cooling water holes.

The invention provides a technology for cloud service to access data of Intranet. In the technology, a server side and a client are used, wherein the server side is placed at a cloud service center under the Internet environment, the client is placed in a local area network, a control channel is established by the client and the server side firstly, and then opening of a data channel is controlled through the control channel; when an application under the environment of the server side needs to actively access an application under the environment of the client, the server side sends a message to the client through the control channel firstly, after the client receives the message, the client actively establishes a TCP (Transmission Control Protocol) data connection channel to the server side, and then the server side utilizes the data channel to transmit the specific application data. The technology solves a problem in the prior art and achieves accessing of the local service through Internet or mobile Internet, and meanwhile, the data security is guaranteed; the technology can be applied to remote monitoring systems of medium-sized and small enterprises, and the functions can be realized for some small enterprises through installing a Qiyuntong product on a video server in the local area network only.

The invention relates to an intelligent routing method and device, electronic equipment and a computer readable storage medium, and belongs to the technical field of network communication. The method comprises the following steps: initiating a connection request to gateway equipment so as to establish connection with the gateway equipment; acquiring detection parameters issued by the gateway equipment, wherein the detection parameters comprise a plurality of preset public network addresses and preset detection times; sending detection messages of which the number is consistent with the preset detection times to an external network outlet corresponding to each preset public network address, and obtaining a detection result; and selecting a target public network address with the optimal network delay from the plurality of preset public network addresses based on the detection result, and establishing connection with the gateway equipment based on the target public network address. According to the embodiment of the invention, network detection is carried out on the plurality of external network outlets of the gateway equipment to select the network link with the minimum network delay, and different network outlets can be selected for a user to provide the optimal access speed under the condition that the use mode or habit of the current user does not need to be changed.

The invention relates to a cognitive radio electric dynamic smart frequency spectrum access method for unknown environmental model characteristics, which belongs to the field of distributed acentric cognitive radio network communication and solves the problem that the traditional cognitive radio electric dynamic smart frequency spectrum access method in a distributed non-cooperation mode can not process the unknown condition of an environment model. The cognitive radio electric dynamic smart frequency spectrum access method comprises the steps of: A, establishing an environmental model of channels occupied by an authorized user: assuming the channels are independent from each other, and the channel occupying condition of the authorized user accords with the Markov switching process; B, establishing an integral channel switching model by a secondary user through a statistical learning method: resolving the sampling quantity through a central limit theorem, establishing a maximum likelihood function through the sampling states of the channels, resolving the maximum likelihood function to obtain the switching probability of the Markov switching process; and C, making a dominant strategy by the secondary user through part observation of the Markov switching process. The invention is suitable for the cognitive radio electric dynamic smart frequency spectrum access for the unknown environmental model characteristics.

The present invention discloses an improved CRDSA protocol suitable for low-orbit satellite Internet of Things by researching and analyzing the existing contention-based diversity slot ALOHA multiple access protocol (CRDSA), including: analyzing the CRDSA multiple access protocol Incoming protocol and its throughput; increase the number of times to send data packets to derive the formula for the throughput and packet loss rate of the CRDSA++ protocol; carry out theoretical analysis and simulation on the formula, and verify the correctness; based on the simulation, conclude The throughput and packet loss rate performance is better. The number of sending copies of the CRDSA++ protocol is 3; on the basis of the CRDSA3 protocol, the probability of sending data packets is added. The present invention proposes an improved multiple access method aimed at the working characteristics of the low-orbit satellite Internet of Things, and derives the calculation formulas for the throughput and packet loss rate of the CRDSA++ protocol with the number of copies r, and is convenient to make the best solution through theoretical analysis and simulation. The choice of the number of copies solves the problem of a large number of terminals accessing the low-orbit satellite Internet of Things.

The invention discloses relay protection constant value setting computing architecture based on improved thin-client technology. The architecture comprises a cloud side composed of multiple servers and a thin-client installed with pattern client software. The method comprises the following steps: (1) the thin-client is responsible for sending action events of a keyboard, a mouse and other input equipment of the user to the cloud side; (2) the cloud side performs judgement after receiving a keyboard and mouse event request of the thin-client, if the keyboard and mouse event request is the request in data computing analysis type, a computing management platform performs the integration processing of the data results in unified; if the keyboard and mouse event request is the file transmission type request, a file service application responds to the file uploading and downloading request of the thin-client; and (3) the thin-client receives the data and picture information needing to display a result from the cloud side, and displays the result through a display screen.

The invention relates to a straw taking device. The straw taking device comprises a mounting bracket, a straw reel and a straw separation module; the suction reel is rotatably mounted between two first mounting plates and used for winding straws which are connected in rows and provided with packing films, wherein the first mounting plates are oppositely disposed on the left and right sides of theupper portion of the mounting bracket. The straw separation module further comprises a left supporting plate, a right supporting plate, a separation knife group and a handle mechanism, wherein the left and right supporting plates are fixed to the left and right sides of a second mounting plate below the mounting bracket, the separation knife group is rotatably mounted between the left and right supporting plates, and the handle mechanism drives the separation knife group to unidirectionally rotate at a certain angle for cutting and tearing the packing films between every two adjacent straws with the packing films until the straws with the packing films on the lower portion fall off. The straw taking device solves the problem of taking the straws which are provided with the packing films and attached to an unattended vending machine, and phenomena of stuck straws and the like cannot be caused.

The invention relates to a method and a device for simulating an operating environment of single-plate software. The method comprises the following steps of: configuring a virtual hard disk, and correcting an address mapping mode in single-plate software codes; compiling a mapping file which is matched with a virtual machine arranged on a personal computer (PC); and operating the mapping file on the virtual machine, starting a virtual single plate, and mounting the virtual hard disk on the virtual single plate. In the invention, by configuring the virtual hard disk for storing solidification information, simulating access of a hardware address and compiling the mapping file which is matched with the virtual machine, simulation of the operating environment of the single-plate software on the PC is realized, so the single-plate software can operate normally without hardware. The invention has the advantages that: the early development and debugging of the single-plate software can be finished by a developer before the development of the single-plate hardware is finished; and physical network elements are simulated when network elements are not enough in a networking test, so a development period of the single plate is reduced, and development cost is reduced.