1004results about How to "Real-time adjustment" patented technology

The invention relates to a method for realizing vehicle-mounted mobile self-organized network routing, which is characterized by comprising the following steps that: (1) a static node is arranged at each intersection; (2) when forwarding a data packet, a source node can forward the data packet to the static node relatively close to a target static node at one end of a road section where the source node is positioned; (3) when forwarding the data packet, the static node firstly judges whether the static node closer to the target static node is in a neighbouring list or not, if so, the static node directly forwards the data packet to the corresponding static node, otherwise, the static node selects a neighbouring road section according to a road section selection algorithm, and then appoints another static node on the selected road section as the static node of a road section receiving terminal, wherein the neighbouring road section is not the road section which just receives the data packet; and the road section direction of the neighbouring road section is close to the target static node; and (4) when receiving the same data packet transmitted from the same source node from different road sections, a routing static node selects an optimal route which is high in the success rate for receiving the data packet and relatively short in delay time, and forbids the receiving routes which are not optimal at the same time.

The invention relates to a time synchronization device in a radio navigation system, in particular to a high-precision time synchronization device, which solves the problems in the prior time synchronization device including long-time synchronization adjustment and inability of real-time monitoring and adjustment of clock signal. In the device of the invention, an industrial computer obtains phase difference signal output from a phase comparator via a GPIB bus, and respectively transmits a control signal to a synchronizer trigger, an atomic clock and a signal source via a RS232 serial communication bus; and the industrial computer further controls the operating state and the switching thereof. The operating state includes time synchronization state: the phase comparator obtains the phase difference of signals output from the synchronizer trigger and the atomic clock, and the industrial computer adjusts the signal output from the atomic clock to synchronize with the signal output from the synchronizer trigger; and monitoring state: the phase comparator obtains the phase difference of signals output from the atomic clock and the signal source, and the industrial computer adjusts the signal output from the signal source to synchronize with the signal output from the atomic clock.

The invention provides a robot-assisted system and method for controlling a flexible needle to puncture soft tissues in real time, belonging to the technical field of medical equipment for minimally invasion surgeries (MIS). The system comprises a flexible needle puncture device, a driving device, a mechanical sensor, a data acquisition card and a computer, wherein the computer comprises stepping motor movement control software, force signal processing software and a flexible needle control algorithm. The method is used for realizing needle puncture movement through the following steps: regarding puncture process as a quasi-static process and any needle section as a cantilever, wherein each needle section is described by vector and is regarded as a cantilever; computing the deflection and cross section rotating angle of the needle section according to the theory of cantilever; and computing the positions of the needle body and the needle point in real time by iteration. According to the invention, real-time adjustment of the position of the needle body in the process of puncture is realized, thus effectively keeping away from the barriers in the process of puncture and precisely hitting the target; and further the degree of fatigue of the doctors is reduced, pains of the patients are alleviated, and the surgery risks are reduced.

The method comprises: a) after receiving the routing maintenances packet, the node maintains and updates its own routing neighbor list, and selects the neighbor nodes whose gradient value are less than its own gradient value and which have link symmetry from the updated routing neighbor list; the node compares the out-going degrees of the selected neighbor nodes, and takes the neighbor node with maximal out-going degree as the optimal next jump node; c) the node establishes the route between itself and the optimal next jump node.

The invention discloses a wind farm energy storage capacity optimization method in consideration of optimal desired output and charge state. The method comprises the steps as follows: firstly, a computing method of an optimal desired output is proposed and utilizes a function with minimum square deviation of offset of a grid-connected power target value as an objective function, setting subjectivity of a stabilizing fluctuation output power target value is eliminated, and the computing method serves as the premise of energy storage capacity optimization; secondly, an energy storage SOC (state of charge) parameter is introduced, charge-discharge power is timely adjusted on the basis of the fuzzy control theory, SOC and charge-discharge states, an energy storage charge-discharge strategy is built, and excessive charge and discharge are effectively restrained; and finally, an optimal model is built with minimum sum of the penalty cost associated with the SOC and the operation cost, so that the energy storage capacity optimization integrating a schedule decision-making requirements, energy storage operating service life and economic efficiency is achieved, and related optimizing problems are solved with improved PSO (particle swarm optimization). The solution algorithm provided by the method is fast, efficient, and strong in convergence capacity.

The invention relates to an urban heating system heating network regulating method and system based on mechanism model prediction control. The heating network regulating method comprises the following steps that S1, a prediction model is established; and S2, regulating schemes of all pumps and valves in the first-degree heating network are obtained through the prediction model with balanced heating as the target. According to the urban heating system heating network regulating method and system, the prediction model of the first-degree heating network serves as the core, the accurate regulating schemes of the tens of to hundreds of water pumps and the electromagnetic valves in the first-degree heating network system are obtained through prediction control, the heating network is regulated in real time, and the problems that heating network control is delayed, and heating of heat users is nonuniform in temperature are solved.

The invention belongs to the field of integrated circuits and in particular relates to a method and a device for automatically adjusting the clock frequency or the power supply voltage of a processor system in real time. The method realizes automatic and real-time adjustment of the clock frequency or the power supply voltage of the processor system by a matching step, a judging step and an adjusting step. In the running process of a processor, the clock frequency or the power supply voltage of the processor system is automatically adjusted in real time, so that the processor runs with an optimal clock frequency or an optimal power supply voltage in real time. Therefore, normal running of the system is ensured and the power consumption of the processor can be effectively lowered.

The invention relates to a differential speed controlling system of an electric vehicle based on two driving wheels, which comprises a left driving module, a right driving module and a coordinate module which receives external controlling signals and outputs corresponding working signals to control the output power of the left driving module and the right driving module which transmit the torque signals of the two driving wheels to the coordinate module which determines whether to adjust the working signals of the two driving modules according to a principle that the torques of the two driving wheels are the same; the coordinate module adjusts the working signals of the left driving module and the right driving module through a PID controller. The invention is simple in system structure and easy in realization; besides, the invention can prevent the vehicle from sliding, reduce the wear of the tires and guarantee the driving stability of the vehicle. In addition, the invention uses a single-chip, so the precision of signal processing is high, the speed is high, and the torques of the driving wheels can be adjusted in real time without any transmission mechanism or differential gear, thus saving the space and increasing the efficiency of the transmission system.

The invention discloses a sampling device for geotechnical exploration, and belongs to the technical field of geological exploration equipment. The sampling device comprises a base, a stabilizing mechanism, a rock cutting mechanism and a drilling and sampling mechanism; four driving wheels are arranged at the bottom of the base; a supporting frame is arranged on the top of the base; the drilling and sampling mechanism comprises a lifting assembly, a lifting plate and a drilling and sampling assembly; the drilling and sampling assembly comprises a sampling barrel and a connecting frame; a rotating shaft is arranged on the connecting frame; a spiral blade is arranged on the rotating shaft in a sleeved mode; and a drilling head is arranged at the bottom end of the rotating shaft in a sleevedmode. The sampling device has the beneficial effects that the lifting operation of the drilling and sampling assembly can be realized, and the sample can be conveyed to a material collecting hopper byvirtue of the drilling and sampling mechanism; the automatic cutting assembly can be used for cutting and crushing rock samples; and a rotary assembly can drive the automatic cutting assembly to rotate to a proper position, so that the interference of the automatic cutting assembly on the operation of the drilling and sampling mechanism is avoided.

An independent learning based P2P network flow identification method is an efficient and accurate P2P flow identification method, and a deep packet inspection (DPI) method and a deep flow inspection (DFI) method as well as P2P flow identified by the DPI are used for verifying machine learning based DFI identification results to achieve automatic learning. The problems that DFI cannot be adjusted automatically and the identification rate is low are solved. According to the P2P network flow identification method with the independent learning capacity, the P2P flow is extracted through a Net Filter technology, the DPI technology is used for identification, recognized P2P flow characteristics are added in an internet protocol (IP) address list, and the machine learning based DFI identification results are verified, so that the whole identification process forms a closed-loop system.

The invention provides a method and a system for recommending a multimedia target, which has the advantages of quickly and accurately finding required content, reducing interaction times and reducing system load aiming at the defects of the prior art. The method comprises the following steps of recommending multimedia content on an interaction interface, wherein the recommended multimedia content is selected from a media library; detecting and recording assessment of a user on the recommended multimedia content on the interaction interface; according to the detected assessment of the user on the recommended multimedia content, modifying the recommended value of the multimedia content in the media library, and according to the modified recommended value, recommending the multimedia content. The existing attributes of the multimedia content in the media library are used, the assessment of the user on the playing content is detected by the recommending method, the attribute factor of each attribute is modified through the interrelated attribute relation, and the recommended value of the multimedia content is further modified, so that the precedence relation of the multimedia content on a play list is changed.

The invention provides a method for preventing air conditioner condensation and an air conditioner. The method comprises the steps that after a compressor continuously runs for a preset time, the indoor and outdoor environment temperatures and the position of an air deflector are acquired, whether the indoor and outdoor environment temperatures and the position of the air deflector meet a preset condition of executing condensation prevention operation at the same time or not is judged, and if yes, condensation prevention operation is executed. According to the method for preventing air conditioner condensation, real-time performance and high efficiency are achieved, the comfort experience of users can be improved, the condensation problem of an indoor unit is effectively solved, and energysaving and electricity saving are achieved.

The invention discloses a self-powered vehicle vibration damping device which comprises a vibration damping device body and a vibration damping device controller, wherein the vibration damping device body comprises a first cylinder body, a piston rod, a piezoelectric generating unit, a transmission force spring unit, a magneto-rheological damping unit and an electromagnetic induction unit; the piezoelectric generating unit comprises a plurality of piezoelectric modules, and a plurality of piezoelectric vibrators are inlaid in each piezoelectric module; the transmission force spring unit comprises an upper spring pressing plate, a lower spring pressing plate, a lower spring clamping seat, an upper spring clamping seat and a transmission force spring; the magneto-rheological damping unit comprises an outer cylinder, an inner cylinder, a permanent magnet protecting cover, an upper damp channel, a lower damp channel, a magnet exciting coil and a piston; and the electromagnetic induction unit comprises a leakage-proof magnetic sleeve, a second cylinder body, a permanent magnet and an electromagnetic induction coil. The invention further discloses a control method for the self-powered vehicle vibration damping device. The self-powered vehicle vibration damping device provided by the invention is high in energy-regenerative efficiency, good in work stability, high in reliability, can adjust the damping force in real time, and ensures that a vehicle is in an optimal vibration damping state.

The invention discloses a palladium nano particle dot matrix hydrogen sensor with controllable sensing parameters. The sensor comprises a pair of insulating flexible substrates (101) with metal electrodes (102), a Pd nano particle dot matrix (103) arranged between the electrodes, a deformation control device (105) for deformation of the flexible substrates, and a corresponding signal monitoring device (104) also arranged between the electrodes. According to the sensor, the work distance of a palladium nano particle dot matrix can be controlled to vary in multiple regions by regulation on strain, and thus, the sensing parameters, such as the sensitive pressure and the time, of the hydrogen sensor can be regulated effectively. The hydrogen sensor can regulate the hydrogen gas-sensitive property index of the Pd nano particle dot matrix in real time without changing the Pd nano particle deposit rate and the electrode structure. Further, the application range of the sensor is expanded and the use cost is lowered. The hydrogen sensor provided by the invention can be used in a plurality of fields related to hydrogen usage safety and needing quantitative detection on hydrogen in industrial and scientific research.

The invention discloses a manipulator precise control system. The manipulator precise control system comprises a video collecting module, an image processing module, a manipulator movement positioning point matching module, a movement difference calculating module, a fuzzy controller, a manipulator movement driver, a path scheduling module and a movement target position inputting module. The invention also discloses a manipulator precise control method. The specific technical scheme of the manipulator precise control method comprises, 1, determining a manipulator movement target position; 2, determining a current position through the video collecting module and the image processing module; 3, calculating the patch between the coordinate of a starting position and the coordinate of the movement target position through the path scheduling module; 4, extracting the movement control signals of every joint of the manipulator at different times; 5, starting a video capturing device; 6, obtaining the coordinate of a positioning point in an image; 7, generating control signals through the fuzzy controller; 8, driving the manipulator to move continuously though the manipulator movement control signals; 9, obtaining the coordinate of the manipulator and matching the coordinate with the scheduled coordinate through the video collecting device. The manipulator precise control system and method can achieve real-time accurate adjustment of the movement path of the manipulator.

The invention relates to a rotary steering well drilling device in the field of well drilling tools. The rotary steering well drilling device is mainly composed of a central spindle, a positioning cylinder, a positioner, a positioning key, a tension spring, a control valve, a control pin, a compression spring, an offset block, a bearing and a sealing device. The central spindle is connected with a drill column and a drill bit. During deflecting, an offset mechanism stretches out, the drill column and a well hole are eccentric, the positioning cylinder and the offset mechanism do not rotate, the drilling pressure and the torque are transmitted to the drill bit through the central spindle, and therefore a deflecting section can conduct rotary and directional drilling. During angle holding, the offset mechanism retracts back, the drill column and the well hole are concentric, the drilling pressure and the torque are transmitted to the drill bit through the central spindle, and therefore an angle holding section conducts rotary drilling. The rotary steering well drilling device is high in deflecting capability, wide in application range and capable of greatly reducing the well drilling cost of a well of a complex structure, and meanwhile the rotary steering well drilling device has the beneficial effects of being simple and reliable in structural design, convenient to machine, large in transmission torque, stable in operation and the like.

The invention discloses a method and a system for adjusting bandwidth, wherein the method comprises the following steps that: a resource strategy sever receives a bandwidth self-service activation request sent by a portal site client, and the bandwidth self-service activation request carries target bandwidth; the resource strategy sever analyzes network resources of a user according to user network information reported by a broadband access server and the target bandwidth; the resource strategy sever issues a first control strategy to the broadband access server according to the analysis result; and the broadband access server executes the first control strategy to adjust the bandwidth of the user. The invention also provides the system for adjusting the bandwidth, which comprises the resource strategy sever, the broadband access server and the portal site client. The method and the system achieve real-time adjustment of the bandwidth by the user according to needs and provide great convenience to the user.

An infrared heating perfusion apparatus for treating diseases features that the medicinal perfusion is indirectly heated by infrared heating tube, the temp measuring probe is used to measure the temp of perfusion, a hung weighing sensor is used to measure the dosage of perfusion, and an industrial control computer and the drivers of electromagntic valve, heater and peristaltic pump are used to control the heating time and circulated flow.