51 results about "Motor behavior" patented technology

An automated intelligent computer system for analyzing motor or locomotor behavior and method of use is provided. The system comprises an automatic, objective, fast and consistent assessment of the level of injury and course of recovery in animal models of spinal cord injury and other gait and motor coordination disorders. The system also is useful for analyzing other types of motor or neurologic dysfunction.

The invention discloses a method for carrying out toxicity analysis on tail water of a sewage treatment plant by using caenorhabditis elegans. The method comprises the following steps of (1) cultivation of the caenorhabditis elegans; (2) cultivation of escherichia coli OP 50; (3) anabiosis of the caenorhabditis elegans; (4) passage of caenorhabditis elegans; (5) synchronization of the caenorhabditis elegans; and (6) testing the comprehensive toxicity of a to-be-detected tail water sample by using the caenorhabditis elegans. The method provided by the invention has the beneficial effects that model organism-caenorhabditis elegans is utilized to carry out toxicity analysis on the tail water of the sewage treatment plant, and the size of the comprehensive toxicity of the waste water is judged by contrasting the difference of fatality rate, reproduction rate, motor behavior and generation cycle of nematodes and exposing nematodes of a blank control group.

The invention discloses a human body abnormal behavior identification method based on a monitoring system; the method comprises the following steps: 1, sample image input; 2, foreground extraction; 3, background updating; 4, foreground image denoising process; 5, motion target tracking and recording: using a Mean-Shift target tracking algorithm to track the foreground image after denoising, and recording the motion information of the motion target; 6, behavior feature extraction: using a background differencing method to extract a motion area of the motion target according to the motion target motion information recorded in step5, and selecting a foreground image with features according to the motion target motion behaviors; 7, building a standard behavior database; 8, result analysis and abnormity determinations; 9, abnormity alarming. The method can improve the foreground image clearness, and can improve the abnormity behavior determination accuracy.

The invention provides a simulation system of a current responding three-phase permanent magnet synchronous motor. The simulation system comprises a three-phase DC/AC power electronic converter, a three-phase passive impedance network, a current control circuit and a motor behavior processor; the three-phase DC/AC power electronic converter and the three-phase passive impedance network are used for simulating the current responding characteristic of the current responding three-phase permanent magnet synchronous motor, and exchanging electrical energy with an external motor drive system; the current control circuit is used for closed-loop control on the current of a three-phase alternating current power port of the simulation system; and the motor behavior processor is used for generating a current reference signal of the current control circuit according to a voltage signal of the three-phase alternating current power port of the simulation system and an input load torque signal, and outputting a corresponding motor speed signal and a motor rotor position signal. The simulation system can be directly connected with a real motor drive system and exchange electrical energy, thus realizing an all-electronic motor drive test, and improving the test efficiency and the safety.

The invention provides a three-phase simulator of a current-response permanent magnet synchronous motor and a drive system thereof. The three-phase simulator comprises at least two three-phase DC/AC converters, an electrical impedance network, a direct current power supply, a drive behavior processor, a motor behavior processor, a voltage control link and a current control link. Each three-phase DC/AC converter is used to simulate the working status of the permanent magnet synchronous motor and the drive system thereof at the circuit level. The drive behavior processor is used to simulate theelectrical characteristics of the drive system. The motor behavior processor is used to simulate the electrical and mechanical behavior characteristics of the permanent magnet synchronous motor. According to the invention, the simulator can simulate voltage applied to the three-phase permanent magnet synchronous motor port by the drive system and the current response of the permanent magnet synchronous motor to the voltage, so as to simulate the dynamic and static electrical and mechanical behaviors of the permanent magnet synchronous motor and the drive system thereof; the simulator can realize all-electric experiment and test of the motor and the drive system thereof; the test cost is saved; and the test efficiency and safety are improved.

The invention provides a method for analyzing correlations between motor behavior and cognitive ability. The method includes the steps of extracting a motion feature set from motor behavior data, wherein the motion feature set reflects behavior features; adopting an iterative random forest to select an optimal feature subset for detecting the cognitive ability from the motion feature set; adopting the optimal feature subset to acquire analysis results of the correlations between the motor behavior and the cognitive ability by the adoption of a classifier. According to the method for analyzing the correlations between the motor behavior and the cognitive ability, the correlations between the motor behavior and the cognitive ability can be effectively analyzed, and especially for a data set with unbalanced small samples, the recognition rate of patients suffering from cognitive disorders can be increased.

The invention provides a somatosensory motion simulation system. The simulation system comprises a user gravity center movement data acquisition unit, a standard movement model generation unit, a processing unit, a safety protection unit and a teaching unit. According to the simulation system provided by the invention, the gravity center movement data of a user can be collected in real time, whether the movement of the user is standard or not is analyzed according to the gravity center movement data of the user, when great deviation exists between the movement of the user and the standard movement, prompt is given out or the on-going movement is controlled, so that the movement behavior of the user is corrected and improved, further, the user masters the essential of the movement rapidly,therefore, the safety of the movement is guaranteed, in addition, the system has the functions of timely protection, movement body sensing and motion load generation and management, thus the user canbe helped to overcome the psychological disorder, the waist, back and leg strength is increased, and the training comprehensive effect is promoted.

The invention provides application of an aminoadamantane mononitrate compound in preparation of drugs for preventing and treating diseases such as glaucoma, vascular dementia, subarachnoid hemorrhage and pulmonary arterial hypertension. Discovered by experiments, the aminoadamantane mononitrate compound can be combined with an NMDA receptor and release nitric oxide (NO), excitatory toxicity of nerve cells induced by glutamic acid can be lowered, the compound plays a role in dilating cerebral blood vessels, cerebral blood flow can be improved, but peripheral blood pressure is not lowered; retinal ganglion cell injury induced by high intraocular pressure can be reduced, and the intraocular pressure is lowered through releasing the NO; in a vascular dementia model, the cerebral blood flow can be improved, motor behavior disorder is relieved, and learning cognitive ability is improved; behavioral abnormality and cerebrovascular spasm induced by subarachnoid hemorrhage can be relieved; discovered by researches on tissue distribution of the drugs, MN-08 can be gathered in pulmonary tissue, in a pulmonary arterial hypertension model, pulmonary blood vessels can be dilated, right ventricular pressure can be lowered, and plumpness of right ventricle can be reduced.

The invention relates to a visual inspection technology, and discloses an abnormal behavior analysis method based on intelligent linkage of multiple video cameras, which comprises the following steps of: performing framing processing and key frame screening on video data of the multiple video cameras to obtain a target frame image; background image reconstruction and background stripping are carried out on the target frame image to obtain behaviors of the moving target and an abnormal behavior library; according to the association weights of the moving target and the multiple video cameras, extracting a behavior set of the moving target from the target frame images corresponding to the multiple video cameras, and according to the behavior feature and the skeleton feature of each behavior in the behavior set, calculating to obtain a moving behavior and a limb behavior of the moving target; and according to the abnormal behavior library, determining the abnormal behavior of the motion target for the motion behavior and the limb behavior. The invention further provides an abnormal behavior analysis device based on intelligent linkage of the multiple video cameras. According to the invention, the accuracy of abnormal behavior detection and the flexibility of detection in different environments can be improved.

The invention puts forwards a method and a device for prompting information to users, relating to the field of mobile health. The method comprises following steps: obtaining three-dimensional behavioral models of users; and determining current three-dimensional behavioral models and continuing time of users and generating relevant reminders by matching the pre-set rules based on users' behavior suggestions corresponding to the matching rules. The three-dimensional behavioral model comprises users' sleeping behaviors, users' motion behaviors and users' mobile terminal usage behaviors. The method for prompting information to users obtains users' mobile terminal usage behaviors, motion behaviors and sleeping behaviors for matching by collecting metadata of a mobile terminal, motion data and sleeping data and is capable of generating relevant reminders for users according to matching of current behaviors and pre-set rules.

The invention discloses a multi-agent parking system simulation system and a construction method thereof, and the system is characterized in that the system comprises a multi-agent simulation module, a randomness simulation module, a system dynamics simulation module, a process simulation module, and a rule simulation module; the multi-agent simulation module is used for describing fixed facilities, vehicles and pedestrians in the parking system, wherein the vehicles and the pedestrians are main bodies and are movable agents with active behaviors; and the fixed facility is at a position and is an immovable agent with passive behavior. Accurate description of motion behaviors and mutual influence processes of all agents in the system can be realized, simulation of motion tracks and selection behaviors of the agents is completed through a logic rule model, a visual system dynamic process and potential problems are provided by means of visualization and result analysis functions, reliable data support is provided for design and operation of the parking system, and the parking system simulation method based on the dynamic parking demand is provided.

The invention discloses a motion scene simulation method based on behavior recognition. The motion scene simulation method includes the steps: firstly, acquiring a real-time staff motion image; secondly, preprocessing the real-time image and drawing the outline of a human body according to the processed image by an edge detection algorithm; thirdly, building a human body structure model accordingto a human body bone structure and joint characteristics; fourthly, recording information parameters of the human body structure model in each motion behavior according to a large number of human bodymotion images of a human body behavior database recorded in advance to obtain a human body motion behavior information base; fifthly, calculating the positions of a trunk and four limbs of the humanbody in motion, the motion state of the human body and the rotating and twisting angles of main joints of the human body in a matching manner by multi-frame continuous matching of the real-time images; sixthly, matching the parameters with the built human body motion behavior information base to recognize the motion mode and motion state information of current motion staff. The motion scene simulation method solves the problem of limitation of a virtual scene playing mode in body-building in the prior art.

The invention relates to a gymnasium fire evacuation behavior data collection system based on virtual reality and a collection method thereof. The invention relates to the technical field of building safety and evacuation simulation. A virtual gymnasium three-dimensional building model is built, and a fire smoke visual scene is simulated in the gymnasium model; through a behavior data acquisition module, behavior data of experimenters during movement during fire simulation are acquired, and after simulation is finished, a subjective body strength table (RPE) is used for subjective evaluation of movement intensity; the collected behavior data are analyzed, and movement behaviors under different evacuation postures are determined; basic information, human body posture data, human body motion parameters, the fatigue evaluation grade and the RPE evaluation data of an experimenter are matched, the data are grouped and numbered, the number further comprises an experiment date and an experiment sequence, and the data are stored and stored.

The invention discloses a periodic behavior report generation method, device and system, a storage medium and electronic equipment. The method comprises the following steps: collecting behavior data and health index parameters of a user in a predetermined period, the behavior data comprising at least one of an exercise behavior, a diet behavior and a medication behavior; at least partially utilizing a machine learning model to generate a periodic behavior report of the predetermined period for the user according to the behavior data and the health index parameters, the periodic behavior report at least comprising an evaluation result of the predetermined period and behavior suggestions and/or index targets of the next period; updating a behavior tag of the user based on the periodic behavior report, and collecting patient education content matched with the behavior tag; and sending the periodic behavior report and the patient education content to the user. According to the invention, the user behavior intervention effect is greatly improved, and the user experience is improved.

The invention provides a behavior detection method. The behavior detection method comprises: extracting human body feature point coordinate information; enhancing the coordinate information content of the human body feature points to obtain kinematics information of human body postures; combining the human body feature point coordinate information and the kinematics information to obtain high-dimension information, and meanwhile, preseting a nonlinear dimension reduction algorithm to obtain low-dimension effective data subjected to redundancy elimination and low signal-to-noise ratio; and performing unsupervised clustering on the low-dimensional effective data, constructing convolutional neural network training to form a behavior recognition classifier, and outputting and displaying the motion behavior of the human body posture. After the attitude mode is obtained by fusing the relevance information of the attitude and the action and kinematics parameters and adopting an unsupervised algorithm, classifier training is carried out by using 1DCNN (one-dimensional convolutional neural network) and combining continuous frame time sequence information to obtain the action category, so that the effect of behavior recognition is achieved, and the problem that accurate behavior detection is relatively difficult is solved.

This invention relates to a device that is intended to synchronize electroencephalograms (EEGs), recorded by any digital equipment, to physical events (sensorial, visual or auditory stimuli) and behavioral events (motor response, vocal response), in order to allow EEG signal mediation for the purpose of visualizing Evoked Potentials or Event-Related Potentials, which are important research subjects in the neurosciences and clinical investigations into neurological and psychiatric pathologies. This invention allows any digital EEG device to be transformed into equipment that can record Evoked Potentials. This invention also provides a method for analog synchronization of EEGs with oscillating electric light-related events and motor behaviors.

The invention provides a behavior modeling method of a moving vehicle in a virtual environment. The problem about realistic display of the posture of the moving vehicle on a natural uneven earth surface is researched. Representation of moving behaviors of moving vehicle dynamic models on a regular pavement is relatively simple, but it is much more complex to correctly represent moving postures of the dynamic models on irregular uneven pavements. Along with irregular unevenness of terrains in the virtual environment, postures of the vehicle need to be correspondingly changed along with change of local features of terrains making contact with a vehicle body under the action of gravity of the vehicle. According to the modeling method, posture display parameters adaptive to terrain changes are calculated through a defined vehicle supporting plane and are displayed in a three-dimensional mode, and the dynamic process of moving of the vehicle is effectively and vividly represented.