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This paper is presented to introduce a system constituting of a PLC (Programmable Logic Controller) that is connected to the level switches which is monitoring the level of the tank. This system saves the tank from over flowing which increases the safety and efficiency. The levels are considered as an input to the PLC and the pump is controlled by the output of PLC which pumps out the solvent or any...
Optimum ecological environment is essential in optimal vegetation growing and maximized harvest revenues. In the traditional irrigation setup, agrarians monitor suitable climatic and environmental conditions for better output from the farm lands. The required climatic conditions vary from crop to crop. It has been observed that light intensity incident on a particular crop type does influence the...
The aim of simulation technique for production line is to find out the most feasible scheme which designers made for the project. Simulation technique can verify the actual effect of the project from the schemes. Combined with the actual production mode, the article analyzed the bottleneck of production efficiency under different shifts. It mainly discussed the value of simulation technology for production...
This paper contains the development and analysis of the human motion state and the algorithm of the fall prediction based on the double foot pressure and the micro inertial MEMS sensors. The fall prediction hardware system consists of three parts, the double foot nodes and the waist node and how it was designed, which could measure the foot pressure parameters and the inertial parameters in different...
A common UAV(Unmanned Aerial Vehicle)'s collision avoidance module was introduced in this paper to handle the flight safety of the UAV. Some ultrasonic sensors were used to collect the obstacle's distance and direction information in real time. The fuzzy algorithm was used to plan a new obstacle avoidance path based on the information. By taking over the control right of the flight controller and...
A novel small underwater robot for ocean observation is introduced, especially suitable for fixed point or small range and underwater slit and gully area of ocean observation. The underwater robot adopts the jellyfish shape design, changes its attitude through adjusting underwater robot's center of gravity position, and possesses five degrees of freedom combining the propeller thrust. Four cameras...
According to the principle of electronic compass, we analyze the error of the E-compass and propose a calibration scheme in view of magnetic deviation, which is based on the self-designed tri-axial magnetometer system. The hardware is made by tri-axial magnetometer and tri-axial accelerometer. Considering the magnetic interference of the external environment will affect the magnetic deviation, we...
Welding robots with strong robustness and high-precision trajectory tracking control play an important role in performing automatic welding processes under complex dynamic environments. This paper proposes a new variable structure control (VSC) based on multi-sliding-surface for welding robots with parameter uncertainties. The whole sliding-mode surface of VSC is divided into three sub-sliding-mode-surfaces...
This paper presents a simplified Zero Moment Point algorithm for fall detection using inertial MEMS sensors. Based on body posture and stability judgment optimization system, we realized real-time detection and analysis of the falls. The system can be used in moving people airbag system that can prevent a major part of the induced fracture of the elderly from falls. Hardware includes the nodes that...
Disease prediction and the pursuit of health has always been the relish topic, especially as the aggravating population aging phenomenon. However, the existing medical knowledge used in disease prediction system is given by experts, which is vulnerable to restrictions of real-time and convenience. On the other hand, people don't want to use the high cost, complex medical monitoring system which could...
Jumping robots provide an effective solution to overcome obstacles and perform locomotion in a rough and unstructured terrain. In this paper, an overview of jumping robots' principle, types, jumping and energy storage mechanism, uprighting mechanism, steering mechanism and models of kinematic and dynamic are presented. The existing technical problems and the future work are also discussed.
In the present paper a lower limb exoskeleton is considered. The goal of the paper is to discuss an application of two types of feedback controllers: an iterative LQR and an adaptive PD controller. Comparative analysis of two controllers is done using data from numerical simulation of sit-to-stand motion of the exoskeleton, controlled by each of the controllers. Results of the numerical simulation...
This paper studies the case of the methane flare of the Okhotsk Sea slope, It is made a large scale acoustic sweep focusing on the east slope of Sakhalin Island based self-developed software SONIC. Detecting and judging the location of undersea methane gas leaks (GF), reisen and seabed, surveying morphological changes of methane release point with collecting the echo signal and visualization fuctions...
Eyes-open and eyes-closed are two physiological states with different levels of brain activity. To classify EEG in eyes-open and eyes-closed, limited penetrable visibility graph method is applied to analyze EEG. It is a signal process method based on graph theory, which bridges complex networks and EEG time series. Networks topology, average path length and clustering coefficient are used to depict...
This paper is about issues experienced along testing large-scale industrial products, with safety and security critical relevance. The challenges in testing - several thousand requirements for several product variants and various configurations - were addressed by test execution automation. However, since principal testing concepts as well as architectural concepts were ignored or poorly implemented,...
The power automation system, which can control almost everything that is powered by electricity in hospitals using live gesture recognition. In this proposed model the system uses a camera feed to detect the motion of hand, or any object. This movement of the object matched with the stored gestures to find the closest match and perform the corresponding actions associated with the gesture. This is...
In the paper the simulation of the error in shaping surfaces with double curvature designed with the aid of Laiming's modified method is carried out. The effect of cutting force for the mechanism of parallel structure-hexapod is considered.
This paper reports the method for the simulation of a rated machinable surface in a machined thin-walled part with a small angle of taper. The procedure for the simulation of a generating surface in the compound milling cutters set equipped with replaceable polyhedral plates within the limits of the creation of the procedure for their modeling is shown.
The aim of the research is to determine the mechanism of distribution of the external load between the rolling elements in radial-thrust and thrust-radial bearings under the action of the combined load. In article is given the mathematical model which allows defining for different operating conditions the maximum load on the balls of bearing and the change of load during operation of the bearing....
In this paper a concept of application of polynomial matrix σ-inverse in multivariable state-space perfect control is presented. The new inverse is derived from perfect control of systems described by the input-output approach. Rather surprisingly, the σ-inverse clearly outperforms some other inverses of nonsquare parameter matrices, including the classical minimumnorm right one. A minimum-energy...
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