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Network is the direction of development for industrial control, application of PROFIBUS-DP network consisting of S7-300 PLC S7-200 PLC produced by Siemens is becoming more and more widely. WinCC is powerful PC monitoring configuration software, often need to read and write datum of master-slave PLC in the network. This paper discusses the method of direct communication between WinCC and master-slave...
When asymmetric hydraulic cylinder electro-hydraulic servo system has positive and inverse kinematics, the flow rate required by the system and various motion parameters are very different. That makes the asymmetry for static and dynamic characteristics of both directions. This structure on the asymmetry of the system has the characteristics of nonlinear, time-varying and gain asymmetry, which bring...
The 3D face morphable model is applied in the hearing and speech rehabilitation for hearing-impaired children, put forward to 3D face morphable model is the core of special human-computer interaction model. Including 3D face, sound, vibration, air, video, gestures, etc., through the computer generate realistic 3D face expressions and motions, with corresponding voice vibration flow feedback information...
In this paper, a respiratory training system geared to speech training for hearing-impaired children is researched, which is mainly used to solve breath-related issues occurring during speech training process. The system comprises of a translucent respiratory system model with interactive function and a respiratory training measurement system based on multi-sensor. Hearing-impaired children can use...
The information extraction and recognition of speech emotional information under the noise environment has been the research hotspot and difficulty, which limits the application of speech emotion recognition technology. An improved spectral subtraction algorithm is presented based on the analysis on the basic principle of spectral subtraction. According to the distribution of noise, the improved algorithm...
Inverted pendulum is a nonlinear, multivariable and instability system. In the past, without considering the effects of measurement noise and output noise of the sensor in the processing of inverted pendulum control, the strong random jitter occur, and the control accuracy and stable of the inverted pendulum is reduced. Because the Kalman filter can estimate the signal is corrupted by the noise, the...
In this thesis the face motion capture technique is applied to the language rehabilitation training of hearing-impaired children with a presentation accordingly of an arrangement suited for the face marking feature points of hearing-impaired children in language rehabilitation training. Due to the fairly compact arrangement of human face, problems such as missing of marking points and noise interference...
For the problem of low detection accuracy and slow speed to fast motion object, when solving the basic optical flow constraint equation with the traditional algorithm, an improved optical flow algorithm based on LK optical flow algorithm has been put forward in this paper. The intensive optical flow is the biggest characteristic of the algorithm, the structure of the sampling pyramid executive optical...
3D talking head technology is applied in speech training of impaired hearing children, and dynamic extraction method of 3D parameters of tongue in 3D talking head is posed. 3D talking head visualization auxiliary teaching technology is a special model for autonomous language training without human intervention, the difficult point of which is the characteristics acquisition of the motion track of...
One of the main components of the computer vision is 3D reconstruction. Extracts and the match based on two-dimensional picture characteristic point is the 3D reconstruction technology core. Taking binocular stereoscopic vision theory as a foundation, through extracts the characteristics of SURF based on the multi-scale analysis, this feature has specific scale reproducibility, put the epipolar constraints...
One finger zen push is one of the massage manipulation skill. In this paper, through the study of the characteristic rule of one finger zen push massage experts' pressure distribution data, the one finger zen push massage evaluation scheme based on the data is presented. That is when the expert is conducting one finger zen push massage method, the real-time acquisition of the massager's force information...
We demonstrate a robust method of modeling lip contour using Active Shape Model(ASM), which is only able to deform in ways characteristic of the class of objects it represents. The method first labels the training set, then uses Procrustes Analysis to align the coordinates got by labeling, and then does Principle Component Analysis(PCA) on the aligned data, with which we can get the modes of lip contour...
This paper studies the robust H8 output feedback control problem for a class of uncertain networked control systems (NCSs) with long time-delay. Firstly, the NCS model with a random long time-delay is transformed into a discrete-time system model with uncertain parameters. And then, a sufficient condition for the solvability of the robust H8 dynamic output feedback control problem is proved and presented...
The 3D conversation based pronunciation rehabilitation method for impaired hearing children is a new visual teaching auxiliary technology, which overcomes traditional teaching model and is used more widely. The key techniques are extracting 3D facial features and driving 3D head models. To solve the existing problems about traditional methods, the paper proposes a kind of 3D face feature extraction...
Facial expression recognition research is an important research direction of computer vision on human face analysis field. This paper propose a mark scheme which can be compatible with Constrained Local Model (CLM), and then propose a method which combines local binary patterns' features and SVM classifier to recognize specific expressions. Our method first extracts LBP features from training data,...
For a long time articulatory modeling of vocal tract and speech production organs have been widely researched. This paper firstly introduced the natural speech production process. Then the paper presents the methods for articulatory measurements, geometrical synthesis of articulation and synthesis of speech sounds. The measurement methods are divided to static and dynamic methods according to whether...
The JiaMusi highway bridge reinforcement material experiment process are expounded. In the self-compacting concrete material performance tests, concrete strength meets the design requirements. In the vibration influencing on concrete strength tests, values of intensity decrese to 10∼20%. In the planting-bar anchorage tests, no concrete was brought out, nor tape out. The experimental results show that...
Recognition of orientation, occasion and mobility for visual impaired people is very difficult, especially in unknown environment. This paper describes an embedded pedestrian navigation system contained sensor that is an active Radio Frequency Identification (RFID) tag system. The navigation system based on active RFID is a new identification technology, judging direction and position of user by calculating...
Visual-speech thinking studied in the field of human-computer interaction is applied to voice assistant system. A new method based on 3D talking head driven by parameter is presented to make rehabilitation training and the speech rehabilitation problems of hearing-impaired children are resolved. Establish the 3D talking head model, and set up the 3D visual speech database by extracting parameters...
Stroboscope method is a non-contact detecting technique through analyzing objects luminous radiation characteristic when the objects are excited by external source such as visible light, X-ray, γ-ray and electron beam etc. By analyzing the excited parameters, we can obtain the trace elements characteristics plot. The experimental results indicate that the measurement has more accuracy and sensitivity.
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