102results about How to "Valid response" patented technology

Dynamically adding n partitions to a distributed directory setup having x existing servers by modifying the configuration file to include the n new servers and implementing a replication setup mechanism with agreements to x+n−1 servers. The migration to dynamically add partitions is carried out while continuing to serve clients.

The invention relates to a real-time testing system and a testing method for an inertial platform. The testing system comprises a real-time data collection module, a real-time communication module anda real-time testing system, wherein the real-time data collection module is used for collecting self-monitoring data, inertial measuring data, analog data and power source data of the inertial platform, and sending to the real-time testing system; the real-time testing system is used for receiving the self-monitoring data and the power source data of the inertial platform and diagnosing faults, receiving and displaying the inertial measuring data and receiving and storing the analog data of the inertial platform. The testing system has the advantages that the online programmable function of testing tasks is realized, an item interaction window is provided, the testing task progress can be programmed on line, the storage function of testing task process is provided, and the automatic testing of the inertial platform is realized; the parameter fault detection and fault treatment functions of the inertial platform are realized, the monitoring data of the inertial platform can be judged,and the effective response can be timely made.

The invention belongs to the field of high-power LED street lamp technology, concretely relating to a control method and a device for realizing long service life light intensity of a high-power light emitting diode street lamp. The invention has an adoption of closed-loop digital control; output light of LED is maintained to be strong in the whole service life span; and light decay thereof is compensated, thus guaranteeing a satisfactory luminous intensity in the service period of the street lamp; meanwhile, the service life of the LED street lamp can be prolonged. Concretely, optical signal output by the LED is detected, amplified, and converted by the device; the signal is filtered and judged and false signals are removed. In turn, light output of the lamp is regulated according to the light decay size obtained by calculation. The control method and a device for realizing long service life light intensity of a high-power light emitting diode street lamp also comprises a method for judging expiration of the service life of the lamp and sending out warning signal to an upper system at the expiration of the service life.

The invention discloses a single inductance multi-output buck converter as well as a control circuit and a control method of the single inductance multi-output buck converter. The control method comprises the steps of comparing a first feedback signal with a first reference signal and generating a first comparing signal; comparing a second feedback signal with a second reference signal and generating a second comparing signal; if the appearance of the first comparing signal is earlier than that of the second comparing signal, conducting a first switch tube, disconnecting a second switch tube, conducting a third switch tube, disconnecting a fourth switch tube, and disconnecting the first switch tube and conducting the second switch tube when the conducting time of the first switch tube achieves a first time threshold value; if the appearance of the second comparing signal is earlier than the first comparing signal, conducting the first switch tube, disconnecting the second switch tube, disconnecting the third switch tube, conducting the fourth switch tube and disconnecting the first switch tube and conducting the second switch tube when the conducting time of the first switch tube achieves a second time threshold value.

The invention relates to an active distribution network demand response control method based on hierarchical energy storage. The method comprises a same layer source-storage coordinated response strategy, a cross layer storage-storage coordinated response strategy, a same layer source-storage-charge coordinated response strategy and a cross layer source-storage-charge coordinated response strategy. The same layer source-storage coordinated response strategy is used for onsite smoothing distributed energy network access real-time power fluctuation. The cross layer storage-storage coordinated response strategy solves the problem fed back by the present layer by authorizing to the energy storage system in the previous layer of power grid and aims at enhancing the consumption capacity of the distributed power supplies. The same layer source-storage-charge coordinated response strategy and the cross layer source-storage-charge coordinated response strategy perform optimization control according to the priority of maximizing consumption distributed power generation, load power supply and energy storage economic operation. The energy storage system is hierarchically accessed to the distribution network so that the characteristics of energy storage can be fully exerted and the economic performance of its application can be enhanced, and scale application of energy storage in the electric power system can be facilitated.

The invention discloses an intelligent nonlinear control system for a hypersonic morphing aircraft and belongs to the aviation aerospace propulsion control technical field. According to the intelligent nonlinear control system of the invention, according to problems in outer-loop stable tracking control of the hypersonic morphing aircraft, with influence on modeling caused by a morphing structure and influence on tracking control performance caused by model parameter uncertainty and external unknown interference considered, the control system is divided into three sub systems according to the state variable characteristics of the aircraft; control signals are obtained sequentially through using a backstepping method; approximation is performed on the unknown interference through adopting an RBF neural network, so that the robustness of the controller can be ensured; and according to the problems of difficulty in the derivation of virtual control signals and differential expansion, dynamic surface control thinking is introduced to make improvement. With the above technical schemes of the invention adopted, the global stability of the closed-loop system can be guaranteed, and the system has high tracking performance and robust performance.

The invention discloses a back-stepping robust self-adaptive dynamic surface-based near-space aircraft control system. The system comprises the steps of: initially employing interpolation fitting to obtain an aerodynamic parameter of an aircraft cruising segment, and building a longitudinal uncertainty strict feedback block non-linear model of an aircraft; secondly, separately controlling speed and height according to state variable characteristic of the aircraft, sequentially solving a control signal by a back-stepping method, approaching unknown interference by employing a RBF neural network, and updating the parameter on line and in real time; and finally, adding a dynamic surface control method with regard to the problems of virtual control signal derivation difficulty and differentialexpansion. By the system, the problems of virtual control signal derivation difficulty and differential expansion are solved, and the system has favorable tracking property and robustness.

The invention discloses a near space variable wing aircraft adaptive winglet switching control system and a working method thereof, and belongs to the technical field of aviation aerospace propulsion control. For the problem of stable tracking control of speed and attitude of a near space variable wing aircraft and with the influence of a variable wing structure on modeling and the problem of switching control in the winglet telescoping process being considered, the method is characterized by obtaining a state equation expression based on a nonlinear model of an aircraft; and according to relative order of velocity and pitch angle, establishing reference models of an adaptive control system. A designed adaptive controller comprises a nominal controller and an adaptive update module, wherein the adaptive update module is used for automatically updating controller parameters to realize smooth transition before and after winglet switching. The system and method can ensure global stability of a closed-loop system, and the system is allowed to have good tracking performance and robust performance.

The present invention relates to a mine pressure signal real-time visual demodulation system and demodulation method based on optical fiber sensing. The demodulation system is mainly formed by a mine pressure signal acquisition subsystem, an optical signal transmission subsystem, a photoelectric signal conversion subsystem and a digital signal visual processing subsystem. A mine pressure signal is collected through arranging an optical fiber sensor in a coal mine, the mine pressure signal is transmitted to an optical fiber grating demodulator for a mine in the form of optical waves and is demodulated into wavelength data, the digital signal visual processing subsystem demodulates the wavelength data into a mine pressure physical quantity and automatically outputs a visual mine pressure chart and a mine pressure monitoring report. The system and the method have the advantages that the demodulation system is comprehensive and diversified, the development performance is high; the system equipment is essentially safe and is especially suitable for a complex underground environment; the demodulation algorithm is professional, and the mine pressure demodulation is more accurate; a demodulation result is clear and visual, and the degree of visualization is high; the system response is timely and effective, the underground mine pressure can be displayed in real time, and the safe and efficient production of a coal mine is ensured.

An intelligent driving environment sensing method and apparatus, a computer device and a storage medium are disclosed. The method comprises the following steps of: acquiring environmental informationsent by sensors in each set level, wherein the environmental information is acquired by the sensors according to the corresponding preset acquisition frequency; according to the preset response frequency corresponding to each level, performing feature extraction on the environmental information sent by the sensors in each level to obtain the perceptual information. The preset response frequency isdifferent for different levels. The method can improve the safety of intelligent driving.

The invention relates to a voice broadcast interruption method and device. The method comprises the following steps of: receiving an input current voice in a voice broadcast process, obtaining a target semantic recognition result of the current voice, judging whether the user intention of the target semantic recognition result can be correctly recognized or not, and if the user intention can be correctly recognized, interrupting the voice broadcast. Through the technical scheme of the invention, the broadcast of the voice equipment can be prevented from being influenced, and the voice equipment can be ensured to timely and effectively respond to the user intention.

The invention provides a ballistocardiogram signal collection system.The system comprises a ballistocardiogram signal collection and conduction device and an extremely low frequency micro-vibration signal inductor.The ballistocardiogram signal collection and conduction device comprises a vibration collection panel, a conduction piece and a base.The conduction piece is fixedly installed on the bottom face of the vibration collection panel.The vibration collection panel is connected with the base so that uniform supporting of the base for the periphery of the vibration collection panel can be formed; the extremely low frequency micro-vibration signal inductor comprises a vibration receiving piece, a piezoelectric film sensing piece and a support, the vibration receiving piece is connected with the support in a matched mode so that uniform supporting of the support for the periphery of the vibration receiving piece can be formed, and the bottom face of the vibration receiving piece and a through hole inside the support form a cavity B; the piezoelectric film sensing piece is flatly attached to the bottom face of the vibration receiving piece; the support is arranged inside a cavity A.The ballistocardiogram signal collection system is simple in structure, low in cost, high in sensitivity, small in size and capable of achieving full-coverage of ballistocardiogram signals belonging to extremely low frequency vibration signals.

A work transfer apparatus (2) is provided with a feed drive mechanism (4), which drives a transfer bar (3) in the work transfer direction, and a lift clamp drive mechanism (5), which drives the transfer bar (3) in the lift direction (L) and the clamp direction (C). The lift clamp drive mechanism (5) is provided with: a supporting section (51) for the transfer bar (3); first and second carriers (52, 53) which can move in the clamp direction (C); first and second carrier drive mechanisms (54, 55, 56, 57) which drive each of the carriers (52, 53); parallel links (58) which rotatably connect the first carrier (52) with the supporting section (51); and a drive link (59) which rotatably connects one of the parallel links (58) with the second carrier (53). A first guide section (72) which guides the first carrier (52) and a second guide section (73) which guides the second carrier (53) are parallel to each other and are shifted from each other in the work transfer direction.

The present invention relates to a PCA-based gas detection apparatus and a PCA-based gas detection method, and belongs to the technical field of gas detection. The gas detection apparatus comprises azirconium-based sensor, a data collection and conversion device and a PCA analysis module, wherein the zirconium-based sensor has a single sensitive electrode. According to the present invention, thegas detection apparatus can simultaneously identify a plurality of gases, and has advantages of simple preparation process, small volume, and low cost.

The invention provides a spatial distribution method and device for rural domestic surface source load. The method comprises the following steps: performing river network digitalization on a digital evaluation model by using a GIS (Geographic Information System) tool, and performing 'computing element' encoding according to a Pfafstetter drainage basin encoding method; establishing a nonlinear relation among a rural population size, a terrain factor and the load capacity under a time-space scale to realize spatial distribution characteristic prediction of the surface source load. A computing result is dynamic and stable, and has high simulation accuracy; the method is an effective method for identifying the type of surface source pollution, and has the characteristics of convenience in use, operability and the like; guidance about 'where the pollution is', 'where the pollution is severe' and 'where the pollution needs to be treated in time' can be provided for the water environment protection department, and rapid and effective responses can be made.

The invention discloses an independent type photoelectric smoke sensing fire alarm device and a working method. A detection cavity is arranged in an outer cover shell; a multistage annular perpendicular stepped smoke feeding structure is arranged outside the outer cover shell, and is provided with double rows of through holes; an alarm is arranged in the detection cavity, and comprises a signal processing unit, an infrared light-emitting diode, an infrared light-receiving diode, an indicator light and a loudspeaker; the infrared light-emitting diode, the infrared light-receiving diode, the indicator light and the loudspeaker are connected to the signal processing unit. According to the independent type photoelectric smoke sensing fire alarm device and the working method provided by the invention, an innovative structure with a stepped parting surface and double rows of through holes is adopted, so that non-sustainable smog can be diffused quickly. Through acquiring smoke particle number and light scattering strength, the smog concentration and the particle size are judged, and a concentration threshold of the smog is set, so that fire alarm factors such as sustainable smog can be effectively responded, and accidental alarm is avoided.

The invention provides a big data intelligent analysis application method based on network security, and the method comprises the following steps: acquiring and preprocessing network data, storing the network data and forming a distributed storage management system; establishing a mathematical model library according to the network data, and completing data structure definition; providing a data mining analysis entry, establishing a corresponding model according to the algorithm parameters, and generating an analysis result. According to the invention, on the basis of security big data, the network security situation can be sensed in all weather and all directions; an existing real-time monitoring technology is utilized, and abnormal behaviors are found through long-time data analysis; through data modeling, a visual analysis capability is established, an influence range, an attack path, a purpose and a means of a threat are rapidly researched and judged, and an effective security decision and response are made; a risk notification and threat early warning mechanism is established, information such as objectives, techniques and tactics, attack tools and the like of attackers is comprehensively mastered, and a defense system is perfected.

The invention relates to a method for playing picture at start based on server control, wherein it comprises that; when starts, set-top box requests start picture from control server; the server responds media server address with start picture data to the set-top box; the set-top box requests start picture dataflow service from media server; set-top box plays start picture; enters into normal process. The invention can realize start picture flexibly.

The embodiment of the invention provides a safety event response method and device. The security event response method comprises the following steps of: when network equipment detects that a securityevent occurs, obtaining an event identifier of the security event and a current moment when the security event occurs, and according to the event identifier, searching a plurality of strategy identifiers corresponding to the event identifier and effective time periods respectively corresponding to the strategy identifiers from a configured security event response strategy list, determining a firststrategy identifier corresponding to the effective time period matched with the current moment, and executing a first response strategy with the strategy identifier being the first strategy identifier. A plurality of response strategies are configured for the same safety event, the effective time periods of the response strategies of the safety event do not coincide, different response strategiescan be executed for one safety event in different time periods, complex safety events are effectively coped with, and the response flexibility of the safety event is enhanced.

The embodiment of the invention discloses a traffic information processing method and device based on extreme weather, a storage medium and electronic equipment. The method comprises the steps that ameteorological data set and a traffic flow data set of a predetermined area are acquired; inputting data in the meteorological data set and the traffic flow data set into a machine learning model so as to determine traffic flow data in preset time; and determining the traffic recovery capability based on the traffic flow data of the predetermined time. According to the invention, massive meteorological data, travel data, traffic data and the like can be effectively utilized to optimize the depth sequence model; the traffic network condition after extreme weather and the recovery performance ofthe traffic network are simulated and predicted through the depth sequence model; the specific condition and change trend of an urban traffic network are mastered for urban traffic management departments before, during and after disasters caused by extreme weather, and more effective emergency preparation, response and treatment plans can be established.

The invention discloses a preparation method of a stable ternary composite material for hydrogen production by photocatalytic decomposition of water. The ternary composite material is prepared by compounding a CdS semiconductor material with MOF-808 and reduced graphene oxide under a low-temperature hydrothermal condition. The composite material can be kept stable under the light radiation condition, has excellent light corrosion resistance, does not use a high-boiling-point organic solvent in the synthesis process, and does not pollute the environment. The composite material has a lower band gap value than pure CdS, and can effectively respond to visible light and enhance light absorption. CdS is compounded with MOF-808 and RGO, so that the effective catalytic activity area of CdS is increased, the migration distance of photon-generated carriers is shortened, the carrier migration rate is greatly increased, the quantum utilization efficiency is improved, and the photocatalytic hydrogen production activity of the composite material is further improved. A photocatalytic water decomposition hydrogen production performance test shows that the ternary composite material has excellent photocatalytic hydrogen production performance.