1355results about How to "Guaranteed reliability" patented technology

The invention discloses a method and a device for transporting a message. A specific embodiment of the method comprises the steps of receiving the message released by a releasing client; finding a subscription client, wherein a theme of the message subscribed by the subscription client is consistent with the theme of the released message; detecting a value of a session cleaning identifier set on the found subscription client; in response to that the value of the session cleaning identifier set on the found subscription client is a false value, storing the message to a distributed system, and then sending the message stored in the distributed system to the found subscription client. According to the method and the device disclosed by the embodiment, a distributed-configuration message queuing telemetry transport service is realized, and the message congestion problem is solved.

The utility model relates to a method of rapid automatic matching for the low altitude remote sensing image and the aerial triangulation, which is characterized in that: capture serial images with the low altitude remote platform; extract the characteristic point from the image with the feature extraction technology; save automatically all extracted characteristic points of the images; match automatically characteristic points with same name of the adjacent images and transmit automatically the matched characteristic points with same names to all superimposed image to obtain a large quantity of characteristic points with three degree or more and same names; the semi-automatic measurement control point and the checkpoint of the image coordinate can combine with other observation values of non-photogrammetry to carry out the high precision aerial triangulation and the precision evaluation of the balancing results. The utility model has the advantages that the stable and reliable matching results and higher precision of the aerial triangulation can be obtained even the low altitude remote sensing images have large rotation deviation angle and the applicative demand of the large scale survey and the high precision three-dimensional reconstruction can be met.

The invention discloses a cloud computing system and a cloud computing resource management method. The cloud computing system comprises at least one cloud computing subsystem; the cloud computing subsystem comprises a physical machine, physical storage equipment and a storage resource management module; at least one virtual machine for bearing application is configured in the physical machine, and each virtual machine utilizes virtual storage resources in the physical storage equipment; a plurality of virtual storage resources corresponding to the virtual machines are configured in the physical storage equipment, and all the virtual storage resources are logically independent of one another; and the storage resource management module comprises a storage resource allocation unit used for allocating corresponding virtual storage resources from the physical storage equipment to the virtual machines according to the requirements of the virtual machines. By adopting the above scheme, not every physical machine has to be equipped with high-reliability storage equipment while the data reliability is guaranteed, so that not only is the system implementation cost lowered, but also the circulation of resources in the system is facilitated, and accordingly, the requirements of the cloud computing system are better conformed.

The invention discloses a control system of a pure water cooling device of a high voltage direct current (HVDC) transmission converter valve, comprising two independent subsystems, wherein, each subsystem comprises a programmable logic controller (PLC), an input/output module, a sampling measurement system, a synchronization module, a human-machine interface system and a power supply system; the PLCs of the two subsystems can realize non-disturbance switching between the two PLCs and seamless exchange of information of each sub-control system through synchronous optical connection; the control system can monitor each online physical quantity in real time, and accurately control actions of machinery and electrical equipment of the whole valve cooling system in accordance with specific changes of the physical quantities, maximally ensure the reliability of the HVDC valve cooling system by a stable hot backup control subsystem, a control element and control programs, fully narrow the scope of accident, and prevent thyristor valve groups from being damaged due to the failure of the valve cooling system, thereby maintaining the safe, stable and reliable running of the thyristor valve groups.

The invention relates to the distributed data processing technology field and particularly relates to a system and a method for guaranteeing distributed data processing consistency. The system comprises a computer transaction system platform. The computer transaction system platform comprises multiple transaction platforms for transaction business processing, a host in a transaction host is taken as a main node, other nodes are taken as standby transaction machines, the main node is for processing tasks of all orders and further for log record, maintenance and triggering basic data synchronization of secondary nodes, the secondary nodes do not carry out real-time order processing but realizes consistency with the main node through synchronization maintenance of basic data memory. Compared with the prior art, the system is advantaged in that a log structure with a message execution state is employed; a problem of time delay conflict of real-time reading and updating of the basic data of the transaction system can be solved; complexity of replay of the transaction system is reduced; consistency during data processing between platforms and switching between main and standby machines, system performance and reliability are improved.

The invention discloses a method for reliably generating video abstraction in a complex scene. The method comprises the following steps: performing background modeling on an acquired video to obtain the moving foreground of a current frame in a video sequence; selecting a proper target detector for performing target classification and detection on the moving foreground of the current frame by using prediction information; calculating the movement locus of a moving target in the current frame by using a multi-target tracking method according to the acquired type and detection result of the moving target, and calculating the prediction information of a next frame; detecting a next frame till the end of the video sequence; generating video abstraction according to information such as the movement loci, types and the like of all moving targets. According to the method, a mutual feedback mechanism is introduced into foreground detection and tracking processes, so that the omission ratio of weak targets, the false drop rate of dense shielded targets, and the fault tracking probability, miss tracking probability and incomplete probability of the loci of moving target can be reduced effectively; the method can be applied to various complex scenes.

The invention provides a processor fault injection method oriented to a BIT (Built-In Test) software test and a simulator thereof, wherein a hardware circuit board that runs BIT software is taken as a simulation object of the simulator. A normal function simulation module, a fault model parsing module, a fault injection module, a failure behavior simulation module and a peripheral crosslinking environment emulation module are additionally arranged in the processor fault injection method, wherein the normal function simulation module simulates the normal functions of a processor, memorizer and the like; the fault model parsing module parses a fault sequence file; and the fault injection module matches and injects a fault. The processor fault injection method compiles and parses an XML (Extensive Markup Language) fault sequence file to form the fault sequence that can be identified by the simulator by building a fault mode library, searches and injects the corresponding fault when the simulator encounters a fault observation point during the simulation process, and performs the fault simulation when the fault is triggered. The processor fault injection method and the simulator can achieve more complete types of the injected fault modes, can fully cover test cases under each failure occurrence, and can test the circuit board-level BIT software more sufficiently; in addition, only the BIT software that is tested fully can ensure the accuracy and the timeliness of BIT prediction of aeronautical airborne equipment, and further ensures the reliability and the safety of a system.

The invention discloses a vehicle-mounted high-speed road inspection system, and a data acquisition and processing method based on the vehicle-mounted high-speed road inspection system. The inspection system aims to the technical disadvantage in an existing high-speed road inspection method, a movable inspection vehicle is adopted as a carrying platform for carrying multiple data collecting equipment, and the time synchronization, state response, data transmission and storage of each piece of data collecting equipment as well as data collecting equipment integration and monitoring technologies are organically adjusted through a high-precision synchronous controller; the operation reliability of the vehicle-mounted high-speed road inspection system is guaranteed, a data fusion technology and the true color valuation are used for achieving a real three-dimensional expression of a space surface feature, the result output and management are finished in a customizing manner, different requirements of clients are met, the quality of inspection on a road is greatly improved and the speed of the inspection on the road is greatly increased, and the in-time effective data reference is provided for road construction maintenance and management of a high-speed road department.

The invention relates to a drive-by-wire earphone for portable electronic equipment and a method for realizing drive-by-wire. The drive-by-wire earphone comprises an earphone connector, an earphone control part and an earphone receiving part which are connected by wires, wherein the earphone connector is provided with four pins, namely a common port ground wire, a microphone audio cable, a right channel wire and a left channel wire from a position close to a wire end in turn; the microphone audio cable are connected in series with a microphone and the two ends of the microphone are connected in parallel with a key so as to form a microphone control circuit; and at least one group of function control circuit formed by serially connecting a resistor with a key switch is connected in parallel beside the microphone control circuit. The invention can save the production cost, can realize functions of the drive-by-wire earphone simultaneously, such as music play control, volume control, get through and hang up, start and stop of a radio and radio station search by increasing or decreasing frequency, and can be realized on any mobile phone platform.

The invention discloses an instrument capable of implementing automatic detection and sorting of bearing inside diameter. A double-path symmetrical structure is adopted, an inlet sorting mechanism is fixed on one side of a conveyor belt, the side of the conveyor belt is provided with a feeding cylinder and a feeding rod, the other side of the conveyor belt is provided with a station, the station is provided with a station clamping plate and a push plate which are fixed on a station clamping cylinder, the station clamping cylinder is fixed on a station push cylinder, one side of the station is provided with an inside diameter detection mechanism, the station is provided with two gaps which are communicated with a reject outlet and a repair outlet respectively, a reject zone baffle plate and a repair zone baffle plate are arranged on the two gaps respectively, an outlet sorting hopper is fixed at one end of the station, an outlet sorting block is arranged below the outlet sorting hopper, the outlet sorting block is fixed on an outlet sorting cylinder, two sides of the outlet sorting block are provided with an outlet push cylinder and a small groove respectively, and two sides of the small groove are provided with a discharge plate and a discharge frame respectively. The instrument can ensure the reliability of detection on the premise that the detection efficiency of the bearing inside diameter is not reduced, and realizes automation of feeding, detection and sorting.

The embodiment of the invention discloses a road traffic condition analysis method and a system. The method comprises the following steps: a traffic flow perception model is used and the traffic flowinformation of a road network is obtained according to traffic data. Abnormal traffic situation is monitored and traffic management assistance scheme is provided; the road setting analysis model is used and road network road analysis information is obtained according to the traffic data. The road setting is evaluated and a road planning proposal scheme is provided. The method and system can be used for sensing the overall traffic flow of the road network, monitoring the traffic condition of the abnormal burst, and providing auxiliary support for emergency treatment; the rationality of road setting can be analyzed and evaluated to provide support for road planning construction; moreover, the block chain technology is utilized to store and validate the data. The reliability of the data froma data provider can be effectively ensured in the complex network. Dishonest nodes are avoided, and malicious tampering or disturbance is prevented.

The invention relates to an FPGA-based ultra-wideband radio frequency digital receiver device and a realization method thereof, the device comprises: an ADC module, an FPGA module, an EPROM module, a DAC module and a power supply module, the ADC module is connected with the FPGA module and the power supply module to complete conversion function from radio frequency analog signal to digital signal; the FPGA module is respectively connected with the ADC module, the DAC module, the EPROM module and the power supply module; the FPGA module serves as a signal processing core module of the receiverto complete digital down conversion of digital signals, related processing of baseband signals and output of processing results and to control the output of analog signals; the EPROM module is connected with the FPGA module and the power supply module to store program codes within the FPGA; the DAC module is connected with the FPGA module and the power supply module; the DAC module completes the function of outputting the analog signals of radio frequency receiver; and the power supply module provides the entire system with voltage required for operation.

The invention relates to a wireless communication technology, specifically to a method, system and device for determining joining CoMP transmission cell and transmission data, so as to solve the problem that the service cell in the prior art requires the collaborative cell to join the collaborative transmission regardless the current status of the collaborative cell, and perhaps, the determined collaborative cell cannot do collaborative transmission, so that the technical performance of CoMP is reduced. The method for determining joining CoMP transmission cell in the embodiment of the invention comprises the following steps: determining the collaborative transmission parameter according to the collaborative transmission ability after the base station where the collaborative cell belongs meets the trigger condition; determining the collaborative cell for joining the CoMP transmission from the collaborative cells by the base station where the collaborative cell belongs, according to thereceived collaborative transmission parameter. By adopting the method, the invention can improve the performance of the CoMP technology.

The invention discloses a remote control method of wireless terminal equipment. The method comprises that the wireless terminal equipment establishes a long connection channel with a long connection server cluster; the long connection server cluster establishes the mapping relation between an MAC address of the wireless terminal equipment and an identification of the long connection channel; a cloud server transmits the MAC address and the identification contained by a remote control instruction to the long connection server cluster; and the long connection server cluster selects a corresponding long connection channel according to the identification of the long connection channel, and the wireless terminal equipment transmits and receives the remote control instruction via the selected long connection channel. The wireless terminal equipment and the cloud server realize a reliable transmission mechanism of TCP long connection via the long connection server cluster, crossing of different NAT is realized by utilizing an asynchronous non-obstruction communication transmission manner, it is ensured that the service server is actively connected to a wireless intelligent terminal placed behind the different NAT, the wireless intelligent terminal is managed remotely, symmetrical NAT is supported, it is not required to transmit heartbeat packets frequently, and the operation and network transmission pressure is reduced.

The invention discloses riemerella anatipestifer detection kit and method based on a loop-mediated isothermal amplification technology. Based on six specific regions of a 16S rRNA conserved region of riemerella anatipestifer, two specific primers and two specific outer primers are designed in the kit and can specifically distinguish the riemerella anatipestifer and other serotype salmonellae so as to ensure the high specificity and the reliability of a detection result of loop-mediated isothermal amplification. The invention detects the riemerella anatipestifer on the basis of the loop-mediated isothermal amplification technology, can amplify a target sequence rapidly, efficiently and specifically under the isothermal condition, has simple and convenient operation and does not use expensive instruments and reagents; an amplification product can be developed directly by using a fluorescent dye and a result can be judged with naked eyes; the detection cost is low; and the invention is particularly suitable for small and medium size units and field tests.

The invention relates to a method for face recognition. The method comprises: a. an image acquisition module; b. an image preprocessing module; c. a face positioning module; d. a feature extraction module; and e. a recognition module. The method for face recognition in the invention uses relatively advanced technical force, and ensures that an application has certain advantages in technology; the method uses mature technology, and ensures security and reliability of the application; the application is convenient to extend and maintain, facilitating technological updating; the application makes full use of existing resources, and reduces unnecessary reinvestment as much as possible; and compiled codes must be rigorous and readable, explanation of the codes must be clear, and thus responsibility is provided for redevelopment of the application.

The invention discloses an automatic vehicle-following device and a method and belongs to the technical field of a vehicle. The device comprises an acquiring device and a control module, wherein the acquiring device is used for acquiring driving states of surrounding vehicles and confirming operations executed by the surrounding vehicles according to the driving states; the surrounding vehicles are arranged as the vehicles in a preset scope surrounding a first vehicle; the running state of each vehicle comprises one or more of driving speed, gear, brake use condition, engine running condition, steering of a steering wheel, distance away from the first vehicle, and a driving track; the operations of each vehicle comprise one or more of shifting D-gear, shifting P-gear, braking, starting an engine and stopping the engine; the control module is used for controlling the first vehicle to execute a first operation after the automatic vehicle-following is started and the first operation is executed by the surrounding vehicles which are greater than or equal to the preset proportion in all the surrounding vehicles; the first operation is one of the operations. According to the invention, the vehicle-following reliability under a traffic jam condition is ensured and the driving fatigue is effectively relieved.

The invention discloses an authorization method, a device, a device and a medium of a digital asset. The method comprises the following steps: receiving an access request to a target digital asset initiated by an application program, wherein, the application program logs in as a user identity in advance; responding to the access request, initiating a permission request to the block chain accordingto the information of the access request, and receiving the permission information returned by the block chain, wherein the block chain records the authorization information of the user's identity tothe target digital asset; returning the right information to the application. The method records the correspondence relation in the block chain in advance, which can relatively guarantee the reliability and correctness of authorizing the digital assets according to the correspondence relation, and further reduces the difficulty of copyright protection of the digital assets. In addition, the invention also provides an authorization device, a device and a medium for digital assets, the beneficial effects of which are as described above.

The present invention discloses a method and device for transmission of light pilot tone signals. The method comprises: sending test signals of light pilot tone signals to be transmitted to a receiving terminal; receiving feedback channel quality parameters after the receiving terminal processes the test signals, wherein the channel quality parameters are quality parameters of a transmission link from a sending terminal to the receiving terminal; according to the channel quality parameters fed back by the receiving terminal, regulating the modulation coefficient of the light pilot tone signals; and sending the light pilot tone signals modulated through the modulated modulation coefficient. The method and device for transmission of light pilot tone signals have a channel quality parameter detection feedback mechanism, the sending terminal regulates the modulation coefficient of the light pilot tone signals to be transmitted according to the channel quality parameters fed back through the receiving terminal to select optimal modulation coefficient so as to ensure the reliability of each signal in the light pilot tone signals and improve the sensitivity of the light pilot tone signals.

The invention relates to an electronic password lock system and a control method thereof. The system mainly comprises a password lock host, an unlocking handset and an upper computer. An unlocking action is limited and protected by virtue of two authorities, namely dynamic passwords and biological fingerprint features; the operation process of a normal unlocking operation is as follows: transmitting unlocking passwords and operator number to the handset by virtue of the upper computer, granting a using permission to an operator by reading the fingerprint features by virtue of the handset, transmitting the passwords to the password lock host by operating keys on the handset by virtue of the operator through a radio signal so as to realize unlocking, then manually locking, transmitting a return code to the handset by virtue of the password lock host through radio transmission, returning the return code, lock status information and the like to the upper computer by virtue of the handset, and saving work records of the lock in a computer by virtue of the upper computer. The passwords are invisible to the operator during the entire unlocking process. By virtue of the handset and the password lock host, an alarm hint is displayed and the system is locked if errors occur frequently during fingerprint or password recognition process.

The invention discloses a data distributed storage method and system which includes acquiring performance parameters of all storage nodes, determining the priority of the storage nodes according to the performance parameters of the storage nodes and the corresponding preset weights, and storing data blocks finishing data block division and coding into the storage nodes with high priority. The method and system is used for collecting various performance parameters of the storage nodes to serve as the basis of follow-up data block storage, completely considers the performance of the storage nodes and well guarantees data reliability.

The invention discloses a method and a system for automatically connecting a wireless network and a smart television. The system comprises a router and a smart television, wherein the router is used for starting a hidden SSID (service set identifier) for waiting for wireless connection after starting; and the smart television is used for actively connecting the hidden SSID of the router after starting according to a preset name of the hidden SSID to establish wireless network connection with the hidden SSID of the router. Because the name of the hidden SSID of the router is preset in the smart television, the wireless network connection with the hidden SSID can be actively established by the smart television according to the name of the hidden SSID, so that a user does not need to carry out complicated operations of manual setting and searching and only needs to press a start button of the television like operating a traditional smart television, and the wireless network connection can be automatically established between the smart television and the router.

The invention relates to the field of Internet of vehicles and particularly relates to a remote vehicle diagnosis system and method. The remote vehicle diagnosis system comprises a vehicle terminal and a remote diagnosis server, wherein the vehicle terminal comprises a diagnosis request reception unit, a fault information feedback unit, a gateway and a T-Box, the diagnosis request reception unit is used for receiving a diagnosis request, the fault information feedback unit is used for feeding back the fault information, the gateway is used for sending the diagnosis request and acquiring the feedback fault information, and the T-Box is used for transmitting the fault information to the remote diagnosis server. The remote vehicle diagnosis system is advantaged in that the gateway is taken asa diagnosis terminal, the T-Box is taken as a transmitting device, stable operation of the T-Box is guaranteed, safety access verification is added between the T-Box and the gateway, two-way verification through the T-Box and the gateway is respectively carried out when an instruction is externally transmitted, and safety of the whole network is improved.

The invention provides a node synchronization method and apparatus of a blockchain. The method comprises the following steps: obtaining the information of a plurality of nodes adjacent to a node to besynchronized and the information of a plurality of nodes adjacent to an XOR node of the node to be synchronized, and determining candidate nodes according to the obtained information of the nodes; selecting a first predefined number of nodes from the candidate nodes to serve as newly added nodes; updating a routing table of the node to be synchronized according to the information of the newly added nodes to obtain an updated routing table; and synchronizing the node to be synchronized according to the updated routing table. More node information can be obtained, and the most ideal node can beselected from more nodes to perform synchronization and to update the routing table, so that the synchronization effect is locally optimal. Therefore, it can ensure that the node can obtain the currently confirmed or forked transaction faster and more stably, and the security and reliability of account book recording are ensured. At the same time, the node routing table is also optimized.

The invention discloses a method and a device for detecting Trojan in a non-executable file. Based on the Trojan property of the non-executable file, a process to be monitored is determined by operating a detection program of a system user layer and file creating operation of the process is monitored by operating a monitoring module of a system kernel layer to judge whether a file extension name is an executable file extension name under the system or not and judge whether the format of a written file contains the format characteristic of the executable file under the system or not so as to judge whether the program releases the executable file or not, namely, whether the Trojan exists in the non-executable file or not. The method and the device can effectively ensure the Trojan detection reliability for the non-executable file and is suitable for processing batch non-executable files and suitable for various operation systems.

The invention discloses a method for generating multiple paths with multiple QoS constraints in a wireless multi-hop network. The method comprises the following steps: source nodes broadcasting RREQ messages, intermediate nodes processing received RREQ messages, destination nodes processing the received RREQ messages, the destination nodes replying the RREQ messages, the intermediate nodes forwarding the received RREQ messages and the source nodes processing the received RREQ messages. The multiple path generating method provided by the invention substantially reduces control overheads in a path searching and path construction process and improves the multiple path generating method and multipath router efficiency.

The invention discloses a data transmission security encryption method for a metering automation system. The data transmission security encryption method includes steps of (1), a host transmits scattering factors and random digit getting command requests to an encryptor; (2) the encryptor generates a random digit L1 of 8 bytes and utilizes the scattering factors and a terminal service main secret key to generate a terminal service sub secret key, generates a session key via the random digit L1 and the terminal service sub secret key, encrypts the random digit by the session key to generate a ciphertext E1; the encryptor feeds the random digit L1 and the ciphertext E1 to the host; (3), the host transmits an identity verification request containing the ciphertext E1 and low 4 bytes of the random digit number L1 to a smart terminal; and (4), after the smart terminal receives the identity verification request, the session key is generated by encrypting the low-4 bytes of the random digit number L1 with the self service sub secret key. By adopting the ciphertext during data transmission, data confidentiality is guaranteed, data reliability is guaranteed by checking in an MAC (media access control) manner, and system safety is guaranteed by generating the session secret key.

The invention discloses a linked network wireless high-speed communication protocol. A linked network consists of management nodes and ordinary nodes, wherein the management nodes are used as a starting point, the wireless communication is used as a medium, and the ordinary nodes are sequentially networked and connected; in a real physical linked network, a link data forwarding address is configured in each node in a single-link, double-link and three-link virtual linking way according to the real requirement; the quick forwarding of the data and the backup function of a forwarding route can be carried out by virtue of the link data forwarding address; three types of data transmission orders such as a broadcast order, a direct transmission order and a lengthening order are only defined by the network nodes, and the transmission requirement of all data among the nodes can be completed. The transmission reliability can be improved by adopting the double-link and three-link linking way, so that the response time of the wireless communication can be shortened, the efficiency for storing and forwarding the uplink data and downlink data of the link data can be improved, the high-speed transmission of data among the link nodes can be realized, and the safety and reliability can be improved.

The invention relates to a method for dynamic data synchronization. When the dynamic data of a host computer is changed, the method includes the steps as follows: the host computer builds the synchronous request data of the record according to the record corresponding to the changed dynamic data, and transmits the synchronous request data to the record level synchronous process; the operation information is recorded according to the synchronous request data or the synchronous request data and the buffer zone of the global data, and the synchronous information is built through the synchronous rule and transmitted to a standby unit; the standby unit performs the synchronous operation for the required synchronous record in a synchronous manner according to the synchronous information transmitted by the host computer; after the standby unit achieves the synchronous operation of the record, the synchronized record is deposited and the response information which is synchronously achieved istransmitted to the host computer; after the host computer receives the response information, the changed dynamic data is synchronously achieved, and the synchronous operation is finished; the invention also discloses a system for dynamic data synchronization, and the method and the system of the invention can synchronize the dynamic data between the memory databases of the host computer and the standby unit in real time.

The invention discloses an air conditioning system and air conditioner outdoor unit standby control method and device. The air conditioner outdoor unit control method comprises the following steps: acquiring outdoor environment temperature, oil temperature at bottom of a compressor and oil temperature at bottom of an oil separator; acquiring set temperature values, wherein the set temperature values include temperature upper limit value and/or temperature lower limit value; respectively comparing the amplitude relations between the outdoor environment temperature, the oil temperature at bottom of a compressor and the oil temperature at bottom of an oil separator and the set temperature values; and determining whether an electric heating device enters a working state according to the amplitude relations. According to the invention, whether the electric heating device needs to be started to enter a working state in a current working environment is judged according to the relations between the outdoor environment temperature, the oil temperature at bottom of a compressor and the oil temperature at bottom of an oil separator and the set temperature values, so as to ensure the start reliability of the compressor. Therefore, according to the technical scheme, unnecessary electric auxiliary heating time can be avoided, and further standby power consumption of the unit is reduced.