781results about How to "Perfectly compatible" patented technology

Provided is a digital multimedia broadcasting (DMB) system that can provide a multimedia data broadcasting service having an excellent reception quality, a method thereof, and a computer-readable recording medium for recording a program that implements the method. The DMB system includes an encoding unit for encoding an inputted audio / video signal; a synchronizing unit for synchronizing media stream, additional data, interactive service objectifying data that are outputted from the encoding unit; a multiplexing unit for multiplexing the media stream outputted from the synchronizing unit; an error correction encoding unit for performing additional error correction encoding on the media stream outputted from the multiplexing unit; an interleaving unit for removing temporal correlation between adjacent byte units within a data stream outputted from the error correction encoding unit; and a transmitting unit for transmitting a DMB media stream outputted from the interleaving unit to the conventional DAB system and other digital broadcasting systems.

A pure electric automatic driving system provided by the present invention comprises an environmental information acquisition system, a perception fusion unit, an intelligent decision unit, a vehiclemotion coordination controller and a vehicle execution system which are connected orderly, wherein the intelligent decision unit outputs the local paths that a vehicle can drive and the correspondingdriving behavior instructions to the vehicle motion coordination controller, and the vehicle motion coordination controller realizes the transverse motion control and the longitudinal motion control of the vehicle, so that the automatic driving system is modular in function division and normalized in information interfaces, the application scenes of the automatic driving functions are helpful to be expanded, and the riding safety experiences of the automatic driving vehicles, for example, the safe and comfortable automatic driving at a faster vehicle speed and on a faulted working condition, are improved. In addition, the vehicle motion coordination controller monitors the real-time state of the whole automatic driving system, so that the fault states can be identified timely, the reasonable countermeasures can be made, and the driving safety of the automatic driving under various states is guaranteed.

The invention discloses a flexible pressure sensor which comprises an induction layer, a substrate layer, an isolation layer and electrodes. The isolation layer is positioned between the induction layer and the substrate layer and bonded to the induction layer and the substrate layer, and enables electric contact between the induction layer and the substrate layer to be isolated discontinuously; the surface of the induction layer is provided with a first conductive layer, the surface of the substrate layer is provided with a second conductive layer, and the first and second conductive layers are bonded to the isolation layer in opposite directions; and the electrodes are led out of the first or second conductive layer and connected with an external circuit. The flexible pressure sensor is used to detect the size and fluctuation of pressure, a flexible conductive material on the specific substrate is bonded to other conductive substrate, the electrodes are led out, change of resistance between the electrodes is measured, and the size and fluctuation of the pressure is detected in directly. The pressure sensor of high flexibility and high reliability can be applied to a flexible bearing body, technology is simple, and the sensor can be compatible with a present processing technology of a resistant screen to realize scaled production and application.

The invention discloses an implementation method and a device for a data reading-writing splitting system. According to the implementation method for the data reading-writing splitting system provided by the embodiment of the invention, a piece of: HINT information indicating a reading-writing splitting strategy is set in an SQL (structured query language) access request of a reading operation. The method comprises the steps of analyzing a received SQL access request and judging the current operation type; if the current operation type is writing operation, establishing a connection with a master database and writing data into the master database; and if the current operation type is reading operation, acquiring the current reading-writing splitting strategy according to the HINT information in the SQL access request, acquiring the synchronization and time delay information from a slave database with respect to the master database, and executing the reading operation according to the current reading-writing splitting strategy and the synchronization and time delay information. According to the scheme, the needed trusted data can be read when time delay occurs in the slave database, the scheme is better compatible with the existing system resources and the utilization rate of the resources is increased.

The invention discloses a cross-platform online file editing system and a method thereof; and the system comprises a network server and a client. The client comprises a browser module and a Java Applet file editing control module; the browser module sends a web page request to the network server; the network server returns specific service page data with the function of online file editing and displays the data in a form of webpage in the browser module; the page calls the Java Applet file editing control module through webpage Java Script; the Java Applet file editing control module judges the current operating system of the client and installed office software, if installed, then loaded office software is selected; the Java Applet file editing control module downloads the file data needed to be opened from the network server through a HTTP protocol, uploads and saves the file data modified by the client to the network server. The cross-platform online file editing system and method thereof have the advantages of good portability, convenient secondary development, unified calling mode as well as low development and maintenance costs.

The invention discloses a method for sending a channel measurement pilot frequency in an LTE-A system, relating to a radio communication system. In the method, a network side sends the channel measurement pilot frequency CSI-RS of each antenna port used currently on a shared resource of LTE and LTE-A, wherein the CSI-RS of at least one antenna port is sent in a mode of sending a common pilot frequency in an LTE system, while the CSI-RS of other antenna ports are sent on a downlink physical channel. The technical scheme of the invention has little influence on LTE users, can guarantee the property of channel measurement and improve the throughput of the LTE-A system. In addition, the technical scheme of the invention is beneficial for LTE-Advanced users to improve quality of link.

The invention discloses a sequence generation and a mapping method of reference signals and a transmission device. The method comprises the following steps: generating the sequence of the reference signals according to the frequency domain bandwidth of the reference signals; mapping the generated sequence of the reference signals to physical time-frequency resources, wherein, identical sequences are mapped on each OFDM symbol transmitting the references in the time cell to transmit the reference signals. While ensuring interference randomization, the invention also ensures the property of transmission simultaneously, and can carry out compatibility on the current LTE system better, thus realizing high order MIMO transmission, supporting the use of corresponding techniques and improving theoverall performance of the system.

The invention discloses a microminiature unmanned aerial vehicle longitudinal control method with random delay of a distributed network, and belongs to the field of flying control technology. The method includes firstly setting up an unmanned aerial vehicle longitudinal system model and designing a flying control system without network delay, secondly carrying out random robustness analysis and design on the flying control system on the condition of different network random delay, ensuring a gain scheduling strategy of the flying control system, and lastly carrying out closed-loop six-free-degree freedom nonlinear Monte-Carlo simulation verification. According to the control method, deterioration of quality of the flying control system due to network delay is relieved, and stability of the distributed type system can be strengthened. Through utilization of the random robust analysis and design method and the gain scheduling strategy based on linear interpolation, the obtained control has the advantages of being simple, and facilitating engineering realization. Control quality of an original system can be well maintained on the condition of changes of large network delay.

The invention is applicable to the field of communication and provides a system, a device and a method for discontinuous reception in an idle state. The method includes: sending an NAS (non-access stratum) message to an MME (mobility management entity), wherein the NAS message includes numerical values of a specific DRX (discontinuous reception) period of UE (user equipment) and a time unit of the DRX period; the MME is enabled to carry the numerical values of the DRX period and the time unit of the DRX period in a CN (core network) side paging message and transfer to an eNB (evolved node base); and calculating paging moment according to the numerical values of the DRX period and the time unit of the DRX period, and receiving RAN (radio access network) side paging messages sent by the eNB at the paging moment. The system, the device and the method for discontinuous reception in the idle state have the advantages that that DRX period is prolonged and UE (user equipment) electricity quantity is saved.

This invention discloses a method for TD-SCDMA compatible with OFDM technology, which carries out serial parallel conversion to the due-out high speed serial code sheet sequence and generates multiple parallel sub-sequences to be modulated to multiple sub-carriers for parallel transmission to reduce the transmit rate of each channel so as to increase the symbol period and weaken the influence of multi-channel interference, at the same time, it uses the circular prefix as the protection interval, the interference among symbols are reduced greatly and the orthogonality among channels are ensured.

The invention relates to a self-adapting down-sampling stereo video compressed coding method based on a residual error macro block, adopting a stereo video coding scheme based on united compensated prediction by time and spatial correlation analysis of the video information of the left viewpoint and the right viewpoint of a stereo video and correlation analysis between the left viewpoint and the right viewpoint, wherein two images of stereo video of a stereo video image pair are formed according to the human eye vision inhibition theory; a high-resolution image can inhibit fuzzy parts in a low-resolution image, and the finally obtained stereo perception mainly depends on the high-resolution image. Based on the theory, the invention provides a down-sampling method based on a residual errormacro block, comprising the following steps: respectively adopting three down-sampling modes according to movement conditions of the image in different directions to reduce the sampling distortion factor; then according to a motion compensated prediction mode, a parallax compensated prediction mode and a united compensated prediction mode in stereo video coding, judging the severity rate of the movement of the current coding block, thereby realizing the self-adapting down-sampling method based on the residual error macro block and improving the coding efficiency.

The invention discloses a random access method in a wireless network and user equipment. The random access method comprises the following steps: obtaining an estimator of distance from UE (user equipment) to a base station; determining the random access time advance of the UE according to the estimator; when the random access is initiated, enabling the UE to send a random access preamble code to the base station according to determined time lead; and performing random access process. According to the scheme, the random access under a big-area coverage scene can be effectively realized, the operation is simple and reliable, small system bandwidth is occupied, and the resource use ratio is higher.

The invention discloses a system and method for trusted storage of data. The system mainly comprises four logical entities, namely, a trusted management center, an application server, a storage virtualization security gateway and a rear-end storage system. The trusted management center serves as a configuration and management entity for a trusted strategy. The application server serves as an entity sending a data access request. The storage virtualization security gateway serves as an entity receiving the data request of an application layer and achieving mapping of a virtual port, converting of a virtual storage device address and a physical storage device address and encapsulating of an IO request through the virtualization technology. The rear-end storage system provides a physical medium for data storage and operation. On the basis of the storage virtualization technology, a data access control flow in the trusted technology is provided for the storage virtualization security gateway or an agent layer so that strict security check and control can be carried out on an access request for a storage system, and illegal access or vicious data access operation can be prevented.

The invention discloses a virtual private network communication system. The virtual private network communication system comprises a plurality of client apparatuses and a server apparatus which establishes VPN connection with the client apparatuses through a virtual private network by using a preset protocol, wherein each of the client apparatuses comprises an authentication request unit, a first storage unit, a virtual network interface card and an encryption unit; the authentication request units are used for sending authentication information to the server apparatus to authenticate; the first storage units are used for storing the MAC address linked list of opposite-end client and the IP address of the server apparatus; the virtual network interface cards are provided with virtual IP addresses belonging to the virtual private network; the encryption units correspond to the virtual network interface cards and are used for encrypting the data packets which need to be sent from the virtual network interface cards. The invention also discloses a virtual private network connection method and a data packet transmission method. According to the virtual private network communication system, the virtual private network connection method and the data packet transmission method, an N2N structure is used for realizing the VPN network so as to ensure that the privacies of both sides of the communication are not revealed, the structure is concise and clear and simplicity and simplification are realized.

The invention provides a keyless remote starting system and method of a vehicle. The keyless remote starting system comprises a PASE module which is connected to a vehicle-mounted BCM (Body Control Module); the PASE module is used for receiving an RVS (Remote Video Surveillance) signal for implementing vehicle starting control, transmitting a whole vehicle powering-on control signal to the vehicle-mounted BCM after judging that the RVS signal meets a matched authentication condition and the vehicle meets starting conditions, and transmitting an engine anti-theft authentication signal to an engine control module; the engine control module is used for transmitting an automatic starting signal to an engine after engine anti-theft authentication is succeeded; the vehicle-mounted BCM is used for transmitting the automatic starting signal to a vehicle-mounted air conditioner after the whole vehicle is powered on. By completing a strategy of controlling the starting by the PASE module in an existing keyless remote starting system, power supply state conversion of the whole vehicle can be controlled and the vehicle can be controlled to start to warm up an engine by a customer outside a vehicle door or remotely through a command of transmitting the RVS signal, and the air conditioner is automatically started, so that the customer can control the temperature in a cabin before entering the vehicle and the comfort degree of the customer is improved.

This invention discloses a method for realizing HSDPA in a TDSCDMA system used in a communication system composed of a base station and user terminals, in which, the base station includes a medium access control-high speed down-packet access entities and multiple carriers are used to transmit data between the base station and the user terminals including the following steps: the entity in the base station segments a data block transmitting time intervals into several sub-data blocks to be coded and modulated then to be sent to the user terminals via relevant channels, time slots and carriers, which receive the sub-data blocks and demodulate and decode them and merge all sub-data blocks received in a transmitted time interval.

The invention relates to a novel sideward coupling optical fiber component which comprises a first baseplate, an optical fiber and a second baseplate, wherein one surface of the first baseplate is provided with at least one groove; the optical fiber is arranged in the groove; the second baseplate is arranged on the first baseplate and covers the optical fiber; one end of the optical fiber, which is arranged between the first baseplate and the second baseplate, is provided with a bevel, and the bevel is used for performing perfect reflection of beam transmitted in the optical fiber.

The invention discloses an air conditioner and a communication method, a device and equipment of inside and outside machines of the air conditioner. The equipment comprises a CAN bus; an RS485 bus; a data converter, an outside machine of the air conditioner is connected with the data converter through the CAN bus, an inside machine of the air conditioner is connected with the data converter through the RS485 bus; the data converter is used for converting the RS485 data and the CAN data. By adopting the air conditioner and the communication method, the device and equipment of inside and outside machines of the air conditioner, the problem of low communication efficiency of the inside and outside machines of the air conditioner of prior art can be solved, the communication between the inside and outside machines of the air conditioner is rapid, accurate and efficient, and the inside and outside machines of the air conditioner are compatible on network under the different systems, the matching universality of the inside and outside machines of the air conditioner is enhanced under different networks, and the configuration type selection for the inside and outside machines of the air conditioner is more flexible under different systems.

The invention relates to the technology of power integrated circuit design and discloses an over-current protection circuit aiming at the shortcoming that an over-current protection circuit is susceptible to power tube peak current interference and unreliable in acquired data in the prior art. The over-current protection circuit mainly comprises a current sampling circuit, a reference voltage generation circuit, a voltage comparator and a logic control unit. Current flowing through a power tube is compared with set reference signals to generate over-current information, and control signals are outputted to control the power tube by means of delay. Since the voltage comparator has delayed processing capacity, influences of peak current can be avoided, reliability of over-current acquired data is improved, and misoperations are avoided. The over-current protection circuit is particularly suitable for integrated circuit products of high-voltage heavy-current power management chips, DC-DC converters and the like.

The invention discloses a method, equipment and a system for resource allocation of an upstream control channel, wherein the method comprises the following steps: a base station determines whether resources of the upstream control channel corresponding to a feedback physical downstream control channel (PDCCH) exist on an upstream carrier carrying out ACK / NACK (Acknowledgement / Negative Acknowledgement) feedback, and sets identifications of usable resources in the PDCCH according to judging results; and a user terminal detects the PDCCH of a downstream carrier, and uses the corresponding resources to carry out ACK / NACK feedback according to the usable resources in the PDCCH. The invention can solve the problem of resource waste caused by the expense of an upstream feedback channel.

The invention relates to a car networking data transmission route selection optimized method based on electronic eyes. The car networking data transmission route selection optimized method comprises the following steps: (1) the electronic eyes collect traffic video images in real time; (2) a video processing module extracts traffic parameters according to the traffic video images; (3) a cloud computing platform affirms traffic flow state information according to the traffic parameters by combining the national road service level table; (4) a roadside unit broadcasts the traffic flow state information to car nodes, after each car node receives the traffic flow state information, the car nodes are adjusted in a self-adaptation mode and send the broadcast cycle of beacon news; (5) a car source node confirms crossroads where a data transmission route connected between the car source node and a car destination node may pass through according to an electronic map; and (6) the car source node selects the optimized route to send data according to the traffic flow information among the crossroads where the data transmission route may pass through. Compared with the prior art, the car networking data transmission route selection optimized method based on the electronic eyes has the advantages of being reliable in communication, high in promptness of data transmission, and the like.

The invention discloses an integrated glue coating machine and an operation method thereof. The integrated glue coating machine comprises a screwing device, a glue coating device, a detection device and a robot, wherein the screwing device comprises a screwing shaft capable of moving in the vertical direction, and the end portion of the screwing shaft is detachably provided with a sleeve matched with a bolt; the glue coating device comprises a quantitative glue gun, the glue inlet end of the quantitative glue gun is connected with a glue storing tank, and the glue outlet end of the quantitative glue gun is connected with a glue needle; the detection device comprises a detection part used for workpiece positioning, machine type recognition and glue coating qualification degree detection; and the robot is provided with an operation end, and the screwing device, the glue coating device and the detection device are all connected with the operation end. The screwing device, the glue coating device and the detection device are all integrated on the robot, the function that one machine is multipurpose is achieved, the floor area of equipment is reduced, the production efficiency is improved, meanwhile, the integrated glue coating machine can be better compatible with different machine types, flexible production and equipment maintenance are facilitated, and the machine replaces the manual work to meet the real demands of clients for reducing the production cost and improving the production efficiency.

The present invention provides a session method and apparatus based on session initiation protocol. The session method is establishing a SIP message channel between two session terminals and using the SIP message to load and transmit media message. According to the invention, a SIP message and a RTP / RTCP message traversing a NAT can be implemented and then a session between a user agent and other user agent of private network can be implemented without function of a NAT gateway supporting a ALG and without setting additional STUN server.

The invention provides a software intrusion detection system and method. The software intrusion detection system includes three levels: a control kernel, a detection kernel and an output kernel, wherein the control kernel is used for interacting with an upper layer controller, and managing the information generated from the detection kernel and the output kernel; the detection kernel is used for performing acquisition and analysis on a data packet, based on DPDK (DataPlane DevelopmentKit), traversing a rule base to performing detection matching on the analyzed data packet; and the output kernel is used for recording the detection matching result obtained by the detection kernel in a system log on time, packaging the obtained invalid data packet information and then reporting the packaged invalid data packet information to the control kernel according to the detection matching result. The software intrusion detection system and method are flexible in deployment and high in scalability, have the advantages of reducing copy of messages and having nucleophilicity, and can significantly improve the processing capability of messages. Besides, the upper layer is opened for the control interface, so that the software intrusion detection system and method have controllability, and can be preferably compatible with a virtual and cloud computing platform.

The invention relates to a pattern management method of a NoSQL database. The pattern management method specifically includes the following steps that firstly, accessing or updating requests are received; secondly, classification is performed on the accessing or updating requests according to pattern types, or new pattern types and interfaces corresponding to the new pattern types are constructed according to the accessing or updating requests; thirdly, according to a pattern management table connected into the database by the accessing or updating requests through the interfaces corresponding to the pattern types, pattern information in the pattern management table is obtained; fourthly, according to a route provided by the pattern management table, data stored under different pattern types in the database are accessed or updated according to the accessing or updating requests. According to the pattern management method of the NoSQL database, unified management of various heterogeneous data in the NoSQL database is performed; according to different types and features of the data, differential pattern and interface design is achieved, and the high reading and writing performance is ensured. Meanwhile, the universal schema management strategy and a universal read-write interface are provided, and convenience is provided for expansion of data patterns.

The invention discloses a physical layer secret optical fiber communication system based on chaotic phase encryption, and the system comprises the steps: dividing a broadband random light source generated by a main laser into two identical optical signals, and respectively injecting the two optical signals into slave lasers of two communication sides, thereby generating a synchronous chaotic signal; and then the generated synchronous chaotic signal is used as a phase modulator driving signal, and high-speed optical signals generated by high-order modulation are encrypted and decrypted at a sending end and a receiving end.

The invention relates to the wireless communication field, discloses a method and a device for processing bearer identities and enables an EPS bearer to be established and used successfully. In the invention, bearer identities are allocated by MME, PDN GW, Serving GW, or UE; and well-allocated bearer identities are carried by messages in the establishing flow of the bearer and transmitted to each physical device related to the newly-built bearer. During the bearer establishing flow, the binding of related message can be realized through the related identities carried by the message and transmitted and received by certain physical devices. In the process of establishing a signaling messaged of non-first bearer for a PDN, the carried related bearer identities are used for referring to certain information.

The invention relates to an industrial robot teaching and training system and a control method thereof. The industrial robot teaching and training system comprises simulation teaching equipment and industrial robot equipment, wherein the simulation teaching equipment comprises a handheld teaching apparatus, a controller and a PC (personal computer), the handheld teaching apparatus performs data communication and data transmission with the PC through a network with a TCP / IP protocol, and the handheld teaching apparatus is controlled to output signals to the PC; the handheld teaching apparatus is connected with the controller by using the network with the TCP / IP protocol, and the handheld teaching apparatus is controlled to output signals to control the industrial robot equipment to carry out corresponding actions. The industrial robot teaching and training system has the advantages of high safety, good compatibility, low price and the like, simulation teaching for an industrial robot can be realized, personal casualty and damages for the machine caused by misoperation do not occur, thereby being very suitable for teaching or practice of green hands.