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689results about How to "Achieve adaptive" patented technology

Self-adaption alarming method for preventing tailgating with front car on expressway

ActiveCN102745194AAchieve adaptiveSolve the problem of insufficient adaptability of constant thresholdAnti-collision systemsDriver/operatorEngineering
The invention discloses a self-adaption alarming method for preventing tailgating with a front car on an expressway. The method comprises the following steps of: adapting to driver characteristic and driving environment based on a safety time logic algorithm; and performing self-adaption adjustment on a safety time threshold value, namely an alarming threshold to effectively avoid false-alarm. According to the algorithm, an alarm inhibition strategy is set by determining the intension of a driver to reduce false-alarm rate according to the selection of an initial mode and vehicle driving relevant information acquired by a vehicle-mounted sensor so as to calculate collision time (TTC) of the own car and the front car; the current alarm safety threshold value (TW) is calculated in real time according to the driver characteristic and the current driving environment; and finally, whether the potential danger of tailgating with the front car exists is determined according to the calculated collision time (TTC) of the own car and the front car and the alarm safety threshold value (TW); and an alarm instruction is sent when the potential danger exists. By utilizing the method, the potential tailgating danger can be accurately found out in real time according to the driving age of the driver, the driving environment, the vehicle brake type and the like so as to alarm the driver; and therefore, the occurrence of the tailgating accidents of the own car and the front car on the expressway can be effectively prevented.
Owner:SOUTHEAST UNIV

SOC estimation method for series-wound battery pack having equalization circuit

The invention relates to an SOC estimation method for a series-wound battery pack having an equalization circuit. According to the estimation method, adaptive extended Kalman filtering SOC estimation is carried out on the single batteries with the lowest voltage or the highest voltage in the charge-discharge stage so as to obtain the SOC of the series-wound battery pack. For eliminating influence on the measurement signal from noise, and for analyzing the unstable and sharply-changed voltage and current signals, wavelet transform is performed before the implementation of the adaptive extended Kalman filtering so as to realize denoising and analyzing of the signal; and the condition that the curves of the battery parameters and the open circuit voltage-state of charge (OCV-SOC) are changed along with the changes of temperatures and the changes of the SOC is taken into consideration. By adoption of the estimation method, online updating of the parameters can be performed, so that the SOC estimation precision can be improved; the SOC of the battery pack can be accurately estimated under the premise of ensuring the safety operation of the series-wound battery pack; therefore, the estimation method is applicable to active equalization and passive equalization; and meanwhile, by adoption of the estimation method, the influence from noise can be effectively eliminated, and the voltage and current signals can be effectively analyzed.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Intelligent wristband and adaptive method thereof

The invention relates to an adaptive method of and intelligent wristband. Whether the intelligent wristband is in an off state or a worn state is judged according to operation data, heart rate data and blood oxygen saturation data; when the intelligent wristband is in the off state, an operation sensing module and a control unit are switched into a power saving mode, and power of other modules except for the operation sensing module and the control unit is switched off; when the intelligent wristband is in the worn state, an operation sensing module, a heart rate sensing module and a blood oxygen saturation sensing module are switched into a normal operating mode, respectively detect the operation data, the heart rate data and the blood oxygen saturation data, and store the data to a storage unit. Thus, adaptiveness of the off state and the worn state of the intelligent wristband is realized, operation is facilitated and simple, frequent operations during usage of the intelligent wristband are avoided, user experience is improved, battery power is saved, and service life of the intelligent wristband is prolonged.
Owner:DESAI ELECTRONICS HUIZHOU

Self-adaptive configuration method and device for mobile phone terminal

The invention discloses a self-adaptive configuration method and device for a mobile phone terminal, aiming at solving the technical problem that network parameters are required to be manually reconfigured when the terminal is switched among different operators. By acquiring the network parameters, recognizing the network operators and then acquiring operating parameters related to the network operators, the operating parameters such as emergency call numbers, short message centers, access point names, homepages and the like of the mobile phone terminal can be self-adaptively configured, the network self-adaptation of the mobile phone terminal can be realized, convenience is provided for users and the situation that certain functions of the terminal are unavailable because of setting errors can be avoided when the users roam among different countries, regions or operators.
Owner:ZTE CORP

Baud rate fast self-adaptive method based on field programmable gate array (FPGA), processor and receiving end

InactiveCN103036823AAchieve adaptiveApplicable to occasions where data transmission requires encryptionBaseband system detailsComputer moduleSelf adaptive
The invention discloses a baud rate fast self-adaptive method based on a field programmable gate array (FPGA), a processor and a receiving end. The method comprises the following steps: an falling edge of a bus enables a spurious triggered detection circuit to be started, the falling edge is judged whether to be a start bit of a pre-set start frame of sending and receiving double-parties, and if the falling edge is judged to be the start bit, a counter is controlled to continue counting; a rising edge of the bus enables a spurious triggered detection circuit to be started again, the rising edge is judged whether to be a data bit, and if the rising edge is judged to be the data bit, the control counter is controlled to stop counting; and when the control counter stops counting, an actual baud rate of a current data frame is calculated according to a counting result of the counter and a frequency of a high precision clock, the baud rate is written into a data sending and receiving module, the data sending and receiving module is enabled to communicate according to the baud rate, and a baud rate fast self-adaptive process is completed. According to the baud rate fast self-adaptive method based on the FPGA, the self-adaption of any baud rate can be achieved, and a baud rate detection error caused by peaks or burrs on the bus is effectively removed by the use of the spurious triggering detection circuit.
Owner:CSIC WUHAN LINCOM ELECTRONICS

Control method for electronic expansion valve, self-adaptive control method for heat pump, and device thereof

The invention discloses a control method for an electronic expansion valve, a self-adaptive control method for a heat pump, and a device thereof; wherein, the control method for the electronic expansion valve comprises the steps as follows: S110: the electronic expansion valve is started and initiated; a controller arranges the openness of the electronic expansion valve as an initial value; S120: after starting prearranged time, the controller determines the practical over-heat degree of the electronic expansion valve; S130: controller compares the practical over-heat degree with a destination over-heat degree so as to determine the optimum openness value domain of the electronic expansion valve, and S140: the controller adjusts the openness of the electronic expansion valve to the optimum openness value domain. Therefore, automatic regulation of refrigerant flux and throttling degree of the heat pump device according to the working conditions can be ensured, the system is protected and runs at a best state, the optimum openness of the electronic expansion valve can be quickly gained, the lag time is greatly reduced, and the throttling degree of the system can be adjusted according to the running state.
Owner:GREE ELECTRIC APPLIANCES INC

Central air-conditioning control system and control method thereof

InactiveCN104566868AIntelligent adjustment of measurement accuracyIntelligent adjustment of sampling frequencyMechanical apparatusSpace heating and ventilation safety systemsTransition seasonBehavior recognition
The invention provides a central air-conditioning control system and a control method thereof, and belongs to the technical field of air-conditioning systems. The central air-conditioning control system comprises a universal equipment model library, an equipment performance testing module, a comfort level evaluating module, a genetic algorithm multi-objective optimization control module and an execution module. An actual measured method is used, a system model is established, and the central air-conditioning control system is high in precision and high in reliability and is adaptive; a genetic algorithm is used, multi-objective optimizing can be realized, the optimizing efficiency is high, the comfort level is high, energy is saved, and the cost is low; whether a user feels comfortable or not can be intelligently judged by a user behavior recognition mode, and control objectives are adjusted in time; and the control method can be optimal on the basis of environmental change, particularly at the transition season, the equipment efficiency can be greatly improved, and energy conservation and emission reduction are realized.
Owner:ZHEJIANG LUTE ENERGY TECH

Character recognition method for underwater video images

The invention discloses a character recognition method for underwater video images. The method comprises the steps that the video images are subjected to preprocessing according to the morphological image processing principle, the contrast ratio is enhanced, and noise is filtered out; video characters are subjected to region segmentation according to preprocessing results, and text region location is carried out through a method combining edge detection and communication elements; according to video character region segmentation results, character segmentation is carried out on characters through a binary method combining a global threshold method and a local threshold method, and segmented characters are subjected to normalization to enable the segmented characters to be consistent with characters in a template base in size; the template base is designed according to the characteristics of video characters, the segmented characters and the characters in the template base are matched, and the characters can be recognized and stored in text.
Owner:HOHAI UNIV

Mechanical gripper of dispensing robot

The invention relates to a mechanical gripper of a dispensing robot. The mechanical gripper of the dispensing robot comprises a rack, a double-threaded screw, a left finger and a right finger, a motor, an encoder and a gripper controller, wherein the double-threaded screw is rotatably arranged on the rack, and the two ends of the double-threaded screw are respectively provided with threaded parts; the rotating directions of the threaded parts are opposite, and the left finger and the right finger are respectively matched with the two threaded parts of the double-threaded screw; the double-threaded screw rotates to drive the left finger and the right finger to move closely or oppositely, and the rotating shaft of the motor drives the double-threaded screw to rotate; the encoder is used for detecting the rotating position of the rotating shaft of the motor, and the gripper controller is connected with the motor and the encoder, and is used for controlling the rotation of the motor and processing signals fed back by the encoder; and the left finger and the right finger are provided with wedge-shaped grooves, and the wedge-shaped groove of the left finger is corresponding to the wedge-shaped groove of the right finger, so that a drug bottle is clamped in a clamping space formed by the wedge-shaped groove of the left finger and the wedge-shaped groove of the right finger. The mechanical gripper has the functions of size measurement, self-adaptability, self-centering and controllable gripping force.
Owner:深圳市博为医疗机器人有限公司

Self-adaptive pneumatic flexible grabbing mechanical gripper based on metamorphic mechanism

Provided is a self-adaptive pneumatic flexible grabbing mechanical gripper based on a metamorphic mechanism. A support is fixedly connected with a base to form a frame-shaped structure, an air cylinder is located in the frame-shaped structure and is fixedly connected with the base, the gripper comprises a slider crank mechanism and the metamorphic mechanism, chunks are fixedly connected with the metamorphic mechanism, a workpiece is a grabbing object, and contact force sensors are arranged on the surfaces, making contact with the workpiece, of the chucks. Connecting rods are connected to an air cylinder piston through revolute pairs A, the connecting rods are movably connected with the metamorphic mechanism, and the slider crank mechanism is formed by the connecting rods, the air cylinder piston and connecting rods 1 in the metamorphic mechanism, the air cylinder piston is the slider of the slider crank mechanism, the connecting rods are movably connected with the air cylinder piston, and a force feedback control system is connected with the contact force sensors and the air cylinder. Compared with the prior art, the self-adaptive pneumatic flexible grabbing mechanical gripper based on the metamorphic mechanism achieves the purposes of being little in drive, simple in control, low in cost and high in reliability, having certain flexibility, and being capable of self-adaptively grabbing objects in complex space geometrical shapes or simulating the movement characteristics of human hands.
Owner:JIANGSU UNIV

Trusted network access and access control system and method

The invention discloses a trusted network access and access control system. The control system comprises a network access requester, a network access decision-maker and a network access controller. When the network access requester accesses to the network, platform identity authentication is carried out, and secure and trusted states of the requester are detected; the secure and trusted states are sent to the network access decision-maker, and the decision-maker judges the secure and trust level of the requester and gives a network access decision; the network access decision is sent to the network access controller, and the controller limits the requested network access. The invention further discloses a trusted network access and access control method. The control system carries out the platform identity authentication on the basis of TCM and ensures the network access control while avoids identity forging. Network areas are divided on the basis of a digital label technology and dynamically updated, network self-adaption is realized, and the access security of different logical areas is ensured. Secure and trusted strategies are configured, and combined with the TCM cryptographic algorithm, so that the security and credibility of the platform state of the requester are ensured.
Owner:SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD

Pulse width modulation switching power supply controller and switching power supply

The invention provides a pulse width modulation switching power supply controller and a switching power supply and belongs to the technical field of electronic integrated circuits. The pulse width modulation switching power supply controller and the switching power supply are widely applied to a PWM (Pulse Width Modulation) mode AC / DC (Alternating Current / Direct Current) switching power supply system. The PWM controller comprises an FB (Feed Back) sampling circuit, a current mode selecting circuit, a square wave generating circuit and the like. The pulse width modulation switching power supply controller has the advantages of being capable of achieving self-adaption of the system working frequency under different loads and reducing standby power consumption of the switching power supply.
Owner:成都启臣微电子股份有限公司

Piezoelectric-static compound micro machine vibration energy collector and manufacture method thereof

The invention relates to a piezoelectric-static composite micro machine vibration energy collector and a manufacture method of the collector, and relates to an energy collecting device. The piezoelectric-static composite micro machine vibration energy collector comprises a chip main body and a chip external circuit, wherein the chip main body is of a three-layer laminated structure, and the chip main body comprises an upper glass piece device, an SOI (Silicon On Insulator) piece device, a lower glass piece device, a piezoelectric ceramic wafer device, a piezoelectric ceramic wafer electrode and a variable capacitance plate electrode. The chip external circuit is provided with a rectification circuit, a filter capacitor, a first switch, a second switch and an energy storage capacitor, or is provided with a rectification circuit, a filter capacitor, a first switch, a second switch and an energy storage capacitor and a variable capacitance plate starting power supply. The manufacture method comprises the following steps of: manufacturing the lower glass piece device; manufacturing the SOI piece device; manufacturing the upper glass piece device; assembling; and connecting the chip external circuit. According to the collector and the manufacture method, the process is simple, the defects of poorer device stability and performance and the like caused by,manufacturing a PZT (Piezoelectric Transducer) by using the traditional sol gel can be overcome, and wide band and high efficiency collection of energy can be realized.
Owner:XIAMEN UNIV +1

Active clamp flyback converter self-adaptive control method and circuit

The invention provides an active clamp flyback converter self-adaptive control method and circuit, which are used for controlling a conduction time of a clamper tube. The active clamp flyback converter self-adaptive control method and circuit have the following characteristics and effects: a multiplexing auxiliary winding voltage sampling pin determines whether a main switch pipe ZVS is switched on or not, and no additional pin is needed, so that the encapsulation size is reduced; a switch node voltage proportional value in the conduction period of the main switch pipe is saved, and the conduction realization situation of ZVS is determined cycle by cycle on a rising edge of a main switch pipe driving signal, so that the self adaption can be actually realized; since the saved switch node voltage proportional value is gradually updated cycle by cycle, the determination result of the conduction realization situation of the main switch pipe ZVS is not influenced by the device precision, and the determination result is more accurate; and by virtue of the bidirectional control for the width of the clamper pipe driving signal, on the premise of realizing the conduction of the main switchpipe ZVS, the negative current flowing by a diode of the main switch pipe body can be reduced as far as possible, and the loss can be reduced.
Owner:SHENZHEN NANYUN MICROELECTRONICS CO LTD +1

Strong tracking Kalman filer method for target tracking

InactiveCN104408744AAddressed issue where tracking performance was affected by target mutationsEasy to implementImage enhancementImage analysisKaiman filterNon linear dynamic
The invention discloses a strong tracking Kalman filter method for target tracking, belongs to the field of target tracking, and relates to a maneuvering target method based on a strong tracking Kalman filter. The method comprises the steps of building a disperse nonlinear dynamic system model; carrying out system initialization; carrying out time updating, and introducing a time varying and fading factor [lambda k]; measuring and updating; and finally carrying out filtering updating. According to the method, the time varying and fading factor is introduced into a Kalman filter, therefore, the method has the advantages that the Kalman filter is simple to realize and high in filter precision; meanwhile, the strong tracking Kalman filter has a real-time tracking capacity on the sudden change of the system.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Self-adaptive semi-supervised network traffic classification method, system and equipment

The invention relates a self-adaptive semi-supervised network traffic classification method, system and equipment. The method comprises the following steps: acquiring a network stream, extracting thestream feature with the preset fixed quantity in each network stream to obtain a network stream feature vector; computing the centroid of the network stream feature vector in each type according to the marked network stream feature vector, thereby obtaining a vector set M; performing self-adaptive semi-supervised k-means clustering by taking the vector set M as an initial center point; mapping theobtained network stream in each type of cluster to the belonged traffic type according to the maximum posterior probability; taking the traffic cluster of the known type as the training data to trainan online traffic classifier. The invention further relates to a system, the system comprises an acquisition module, a vector set processing module, a clustering module, a classification module, andan output module. The invention relates to the equipment. The equipment comprises a processor, a memorizer, and a computer program stored on the memorizer and capable of being run on the memorizer.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Method and device for managing allocation of data transmission paths in a meshed communications network, corresponding computer program product and storage means

A method for managing allocation of paths for transmission, in packets of symbols, of at least a first data content, each content being transmitted from a source node up to a destination node in a meshed communications network comprising a plurality of nodes, each destination node receiving a plurality of copies of a same packet of symbols of the content transmitted to said destination node by a source node, each copy being received by the destination node via a distinct transmission path directly from the source node or via at least one relay node of the meshed communications network, the packets being encoded with an error correction code enabling decoding by erasure of packets symbols. Such a method comprises the following steps: selecting a set of transmission paths from the source node up to the destination node for the transmission of copies of at least one packet of the first content, for which an estimated first number of erasures of symbols of the at least one packet is smaller than a determined threshold, the first number of erasures being estimated from a piece of information on quality of transmission that is determined and associated with each of the selected transmission paths, the threshold being determined as a function of an erasure correction capability of the error correction code; allocating the selected transmission paths to the transmission of the first content from said source node up to said destination node.
Owner:CANON KK

High-definition video aerial photography multimode sensor self-outer-sensing intelligent navigation system and method

The invention discloses a high-definition video aerial photography multimode sensor self-outer-sensing intelligent navigation system. The system comprises a self-outer-sensing module, an information fusion module and a master control module, wherein the sell-outer-sensing module is used for detecting and sensing the internal state and the external state of an aerial photography aircraft in real time through fusion of multiple sensors and acquiring internal state information and external state information of the aerial photography aircraft; the information fusion module is used for gathering the internal state information and the external state information of the aircraft into a decision making layer through a centralized topological structure, making a consistent decision after the information of the multiple sensors is fused in the decision making layer and outputting a navigation control signal; the master control module is used for adjusting and controlling the state of the aerial photography aircraft in real time in a three-dimensional navigation mode according to the navigation control signal, and therefore horizontal autonomous navigation and vertical autonomous navigation of the aerial photography aircraft are achieved. The invention further discloses a high-definition video aerial photography multimode sensor self-outer-sensing intelligent navigation method.
Owner:BEIJING INST OF COMP TECH & APPL +1

Video multi-target tracking method based on multi-Bernoulli characteristic covariance

The invention discloses a video multi-target tracking method based on multi-Bernoulli characteristic covariance which belongs to the technical field of artificial intelligent and intelligent information processing and aims mainly to solve the problems that in complex environment, the targets in video multi-target tracking are very close to each other and that the size change and tracking to them are not accurate. This method, according to the multi-Bernoulli filtering framework, is introduced by an integration graph and employs a particle filter method to track video multi-targets whose number are in constant change in combination with the characteristic covariance technology. Based on that, a self-adaptive mechanism and a size self-adaptive mechanism for targets in close contact are proposed to realize the self-adaptive processing of targets in close contact and the tracking windows respectively. Finally, a particle filter method is utilized to realize the self-adaptive recognition and tracking of the video multi-targets through their movement trajectories. The method of the invention is highly robust and has a good anti-interference ability. The method meets the design requirement of a practical engineering system and has good engineering application value.
Owner:JIANGNAN UNIV

Computer system based on brain-like coprocessor

The invention provides a computer system based on a brain-like coprocessor. The neuronmorphic network based coprocessor included by the system is integrated with both storage and processing, employs a distributed storage and parallel cooperative processing mode, is especially suitable for processing non-formal problems and unstructured information and can also process formal problems and structured information, such that the speed of a computer in processing such problems as brain-like calculation, artificial intelligence and the like is substantially accelerated, the energy consumption is reduced, the fault tolerance capability is greatly improved, the programming complexity is reduced, and the computer performance is enhanced.
Owner:TSINGHUA UNIV

Data collection method suitable for multi-hop wireless sensor network

ActiveCN101466161AReduce redundant snoopingAbility to adaptively adjust working parametersNetwork topologiesData switching by path configurationData informationNetwork service
The invention discloses a data collecting method applied to a multihop wireless sensor network, which belongs to the wireless communication network field and mainly solves the problems that the efficiency is low, the time lapse is big, and the network service life is short in prior network data collection. The data collecting steps include as following: executing clock synchronization to the local network nodes, and updating the local network information of the network nodes; dividing the network work time into a plurality of network interception periods; utilizing the updated localized network information to work out the interception signal channel probability of the nodes; executing interception at each network interception period according to the interception signal channel probability; executing data transmission according to the contest transmission nodes transmitted by the generating data; executing the data receiving according to the frames hearing the busy signal contest receiving node; and transmitting the data to the syntaxis nodes SINK used for collecting the data through multihops. The method has the advantages that the data collection is in time, and the nodes are high in efficiency and good in expansibility, thus being applicable for collecting data information in a large-scale wireless sensor network for monitoring emergency accidents.
Owner:XIDIAN UNIV

Image processing method for quickly and automatically detecting soldered dot unsatisfied products of electric connectors

The invention discloses an image processing method for quickly and automatically detecting soldered dot unsatisfied products of electric connectors. The image processing method comprises the following steps: 1) converting an original image into a gray image, determining a section center and the outer radius of an inner circle, and accordingly, extracting a square image within a section region; 2) binarizing the square image of the section region, separating out the section and the background and performing morphological filtering; 3) obtaining a contour line width in each direction of the binary value of the section, and obtaining the average width to determine the radius of a center circle; 4) converting an original connector enclosing rectangle RGB image into HSV, segmenting out an H-channel image and carrying out binarization by use of a color threshold of soldered dots; 5) performing morphological filtering on the H-channel binary image to obtain a soldered dot image; and 6) detecting the number of the soldered dots in the center circle of the section by traversing, and comparing the number of the soldered dots with a standard number of the soldered dots to judge whether the soldered dots are satisfied or not. The image processing method is capable of eliminating the subjective error caused by manual examination and improving the consistency of detection, and also capable of improving the efficiency and the accuracy and guaranteeing the safety of the personnel, and has the advantages of non-contact and the like.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Adaptive segmentally controlled tunnel illumination control system and method

The invention relates to an adaptive segmentally controlled tunnel illumination control system and method; the system comprises a tunnel illumination controller, a signal detection unit, a Zigbee network unit, and a plurality of illumination lamp sets; the signal detection unit comprises a vehicle sensor, a vehicle speed sensor, a brightness sensor, a temperature sensor, and a raindrop sensor; the Zigbee network unit comprises Zigbee main node module connected with the tunnel illumination controller, and a plurality of Zigbee node modules respectively connected with the illumination lamp sets; the illumination lamp sets comprise an introduction segment lamp set arranged outside the tunnel, an illumination lamp set arranged in the entrance segment in the tunnel, a transition segment illumination lamp set, a middle segment illumination lamp set, an exit segment illumination lamp set, and a road lamp illumination lamp set arranged outside the tunnel, and also comprise an emergency illumination lamp set. The adaptive segmentally controlled tunnel illumination control system can realize tunnel illumination, satisfies illumination curve demands of human eyes, thus eliminating black frame, black hole and white hole effects.
Owner:FUJIAN CHUANZHENG COMM COLLEGE

Network address converting attribute self-adaptive method and apparatus

The present invention discloses a NAT characteristic self adapting method, which comprises the following steps; looking for dialogue table using data packet IP five tuple or part of IP five tuple as index to match the dialogue tables items that contains NAT_ID; besides looking for the regulation table using the data packet as key works to match the regulation table items that contains NAT_ID; judging the NAT_ID in the dialogue tables items and regulation table items, if is the same, processing NAT according to the dialogue tables items; otherwise, deleting dialogue tables items and building new dialogue tables items according to the regulation table items and processing the NAT according to the new dialogue tables items. The present invention can renew the dialogue tables immediately after the NAT regulations changing, so as to realize NAT attribution self adapting. Corresponding to the above method, the present invention also provides a NAT charactersitic self adapting device.
Owner:北京紫光通信科技集团有限公司

PLC communication-based intelligent electric automobile charging device

The present invention provides a PLC communication-based intelligent electric automobile charging device, which comprises a charging post, an electric automobile, a controller, a PLC power carrier module, a control master CPU module, a sampling module, a man-machine module, a guiding control module, a charging plug and a charging socket of a charging connector, and the like. The charging plug is connected with the charging post. The charging socket is connected with the electric automobile through a cable. According to the technical scheme of the invention, based on the transmission communication between a control strategy and data messages, the charging post, matched with the electric automobile, can be automatically searched and found out. The interior data information of the charging device is modulated through a PLC power carrier board to be transmitted through a power line. The information transmission of charging data is realized in the power carrier communication mode, so that the re-wiring operation is not required. Therefore, the capital investment is reduced. Meanwhile, the device is simple to install and flexible to set.
Owner:STATE GRID CORP OF CHINA +2

City expressway multi-ramp coordination control method based on chaos

The present invention relates to a city expressway multi-ramp coordination control method based on chaos. The city expressway multi-ramp coordination control method based on chaos takes a city expressway system consisting of a multi-entry ramp, a multi-exit ramp, multiple interchange overpasses and an expressway mean line as a research subject. The method comprises the following steps: 1) performing parameter initialization; 2) performing real-time traffic flow data preprocessing: obtaining the real-time traffic flow data according to an information collection module, wherein the traffic flow data is taken as the input of a traffic flow chaos intelligent identification module; 3) performing the identification of each subsystem chaos state: allowing the traffic flow chaos intelligent identification module to determine whether a weaving area is located at a chaos state or not; 4) performing the single-ramp control grade control based on the chaos; 5) performing the multi-ramp coordination control grade control based on the chaos; and 6) determining the regulation of each entry ramp participating in the coordination in an alternate ramp set R2. The method practicable, low in cost and good in control effect and is applicable to the large-scale popularization and application.
Owner:HEBEI UNIV OF TECH

BP neural network-based ultra-short load prediction method

InactiveCN106600050AAchieve adaptiveImproving the accuracy of ultra-short-term load forecastingForecastingNeural learning methodsMicrogridMathematical model
The invention discloses a BP neural network-based ultra-short load prediction method. The method includes the following steps of: step 1, microgrid load data identification and completion; step 2, microgrid load normalization processing; step 3, microgrid data de-noising processing; step 4, load sample difference calculation; step 5, RBF neural network load prediction mathematical model establishment and on-line prediction. According to the BP neural network-based ultra-short load prediction method, based on a traditional RBF neural network load prediction mathematical model, load sample difference is defined through a regression analysis method; and the prediction model is adjusted according to the load sample difference, so that the load prediction model can automatically adapt to load change.
Owner:JINZHOU ELECTRIC POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY +1

Ankle joint exoskeleton based on elastic element rigidity switching mechanism

ActiveCN107854284AIncrease the amount of spring deformationLarge deformationWalking aidsAchilles tendonTorsion spring
The invention belongs to the technical field of lower limb exoskeleton robots, and discloses an ankle joint exoskeleton based on an elastic element rigidity switching mechanism. The ankle joint exoskeleton based on the elastic element rigidity switching mechanism comprises a shank brace, a foot support, a spring support, a motor support, a motor, a ball screw mechanism, an extension spring, a return spring, a penetrating type electromagnet, a ratchet wheel support and a ratchet wheel mechanism, wherein the ratchet wheel mechanism comprises a ratchet wheel and a pawl; the penetrating type electromagnet is mounted on the ratchet wheel support; one end of the return spring is connected with the pawl while the other end of the return spring is mounted on the ratchet wheel support; the lower end of the extension spring is mounted on the spring support while the upper end of the extension spring is connected and wound onto a pulley through a rope; and the pulley is arranged on a ratchet shaft. By the extension spring, a unique energy storage process of achilles tendon and an energy releasing mode can be simulated effectively, an elastic element rigidity switching function can be fulfilled on the basis of a human gait movement rule, thus, an elastic element conforms to time-variant characteristics of in-gait and inter-gait of human movement, three-dimensional geometrical parameter limitation can be broken through, and deformation of the elastic element is improved.
Owner:HUAZHONG UNIV OF SCI & TECH

Distributed multi-robot containment collision prevention control method

InactiveCN104898663ARealize collision avoidanceRealize the collision avoidance problemPosition/course control in two dimensionsEngineeringPosition control
A distributed multi-robot containment control method comprises the following steps: (1) determining leader and follower sets in a directed network according to the communication relationship between robots in the network; (2) designing a position control operator of the follower robots when the leaders are static; (3) introducing a potential energy function to ensure that collision between the follower robots in the process of movement is prevented, and forming a containment control rate when the leaders are static; (4) designing a position control operator of the follower robots when the leaders are dynamic; (5) introducing an exponential estimator to a control strategy formulated for the follower robots to estimate the speed of the leader robots, realize the transformation from locally knowable to globally knowable and determine a speed control operator of the follower robots; and (6) integrating the position control operator and a direction control operator of the robots in a weighted manner, introducing the potential energy function to ensure that collision between individuals in the process of movement is prevented, and forming a distributed containment control rate of the dynamic robots.
Owner:EAST CHINA JIAOTONG UNIVERSITY
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