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The etiology and pathogenesis of Parkinson’s disease (PD) are complicated and have not been fully elucidated, but an important association has been identified between inflammation and PD. In this study, we investigated the role of the nucleotide-binding oligomerization domain, leucine rich repeat and pyrin domain-containing (NLRP) 3 inflammasome, consisting of NLRP3, caspase-1 and cytokines of the...
Eu3+-activated B2O3-GeO2-37Gd2O3-3Eu2O3-(15–x)GdF3-xBaF2 (0≤x≤15) scintillating glasses with the density of 6.1–6.3 g/cm3 were synthesized by a melt-quenching method. The substitution of BaF2 for expensive GdF3 in oxyfluoride borogermanate glasses slightly decreased the glass density within 3.0%. Their optical properties were characterized by transmittance, photoluminescence (excitation and emission),...
For improving Riding Comfort, an adaptive fuzzy PID control method is proposed for the semi-active suspension model of engineering vehicle with five degrees of freedom based on the advantages of fuzzy control and adaptive PID control. Taking a tipper as the study object, an adaptive fuzzy PID controller is designed for vibration control of the engineering vehicle and is simulated. The performance...
In poor driving conditions, the vibration of engineering vehicle greatly increased driver's labor intensity. Taking engineering vehicle as the study object, dynamic model of semi-active suspension system of engineering vehicle with five degrees of freedom is established according to the reasonable simplification of the actual vehicle. Based on the PID control and adaptive fuzzy PID control, the paper...
The multi-sensor information fusion has received great attention due to extensive application backgrounds. Information fusion methods are introduced. An autonomous robot used in environmental sensitive regions to detect fire is studied. Its measurement technology is a key to ensure that the robot move autonomously. The integrated measure system of the robot is designed to improving precise and reliable...
Fuzzy reasoning has been applied in many fields such as control system, expert system and imagine identification and so on. Kalman filter can be used in information fusion. A fuzzy controller is designed in this paper. It used in Kalman filter on location system of an autonomous robot. The fuzzy Kalman filter can adjust the new information of the Kalman filter to increase the convergence of the filter...
An advanced suspension system with adjustable fuzzy control algorithm is designed to improve vehicle comfort and road holding capability. It not only can reflect the advantage of fuzzy logic in nonlinearity system but also can improve the disadvantage of common fuzzy control method strongly depending on the experience. In this paper, taking the ride comfort and road handing as system control objective,...
For two degree of freedom of vehicle suspension model, a novel adaptive controller is presented. In order to compare and analyse, acceleration mean square root of vehicle's vibration is adopted as evaluation index for the riding comfort. In addition to considering the handing safety of vehicle, wheel dynamic load and suspension dynamic deflection are also used to contrast research. The simulation...
To approach an effective vibration control, the emphasis of the research is an adaptive control method for vehicle suspension system. Because of the features of the passive suspension's structure, the system can only store or exhaust the body vibration energy. So the conception of active and semiactive suspension has been advanced, which give a new way to improve the vibration performance of suspension...
For the riding comfort and handling safety of vehicle, an active suspension system with adjustable fuzzy controller is advanced. According to the evaluation method of vehicle vibration performance, the acceleration of the sprung mass, dynamic tire load between wheels and road and dynamic deflection between the sprung mass and the unsprung mass are determined as the evaluation targets of suspension...
The Least Means Squares (LMS) adaptive theory is used in active suspension system. With adjusting the weight of adaptive filter, the minimum quadratic performance index is obtained. For two-DOF automotive suspension model, LMS adaptive controller is studied. According to the evaluation method of riding comfort and handling safety of automotive, the acceleration of the sprung mass, dynamic tyre load...
Vibrations make the riding comfort and handling safety is worse in vehicle operating at high speeds. This research is conducted to demonstrate advantages of vehicle active suspension. This paper presents the design of a novel fuzzy control structure to improve stability of vehicles with semi-active suspension system. The effects of active suspension system on the acceleration of the sprung mass, dynamic...
A kind of active suspension system combined with passive suspensions and active components is addressed. Suspension dynamics are modeled using a two degree-of-freedom, linear and time-invariant vehicle model. The least means squares adaptive algorithm that guarantees system optimal control, is presented and used to find the optimal suspension system design. For two-DOF vehicle suspension model, LMS...
Measure system is important part for an autonomous mobile robot. Move-in-mud robot is a new kind of autonomous underwater robot, which is used to dig hole in the mud. Measure system of move-in-mud robot is designed in the paper and measure principle of move-in-mud robot is analysed. Data fusion methods combine multi-sensor information to obtain the uniform description or the understanding to the measured...
Adaptive algorithm is widely applied in the filed of digital signal processing. LMS adaptive algorithm is applied in the location system of an autonomous robot to increase the accuracy of the location system according to the analysis of the adaptive filter. The autonomous robot is used to dig the hole in the mud underwater along the prearranged trajectory in wreck salvage. The working condition of...
The accurate location is a basic demand for autonomous robot. The location methods of mobile robot can be divided into 2 sorts, namely, absolute location and relative location. Data fusion methods are widely used in autonomous robotspsila measurement system in order to acquire more comprehensive and more exact information. Locaton information from several sensors of different location method can be...
According to the evaluation method of riding comfort and handling safety of automotive, the acceleration of the sprung mass, dynamic tyre load between wheels and road and dynamic deflection between the sprung mass and the unsprung mass are determined as the evaluation targets of suspension performance. The least means squares (LMS) adaptive algorithm is used in active suspension system. With adjusting...
Location system is a key technique of autonomous robot. The location system of a underwater autonomous robot is studied in this paper The robot can move in mud according to the prearranged trajectory. It is used to dig the hole in the mud underwater to place the wire rope for elevating the sunken wreck The location system of the autonomous robot is designed. Because relative location is applied in...
According to the model of vehicle suspension, a novel fuzzy control method based on adaptive technology' is applied to active control of automotive suspension system. An analytic fuzzy control algorithm is advanced in order to improve the riding comfort and handling safety of automotive. Because the algorithm can adjust the rectification factor of fuzzy controller, it not only can reflect the advantage...
The location system is a key technology of autonomous vehicle. Autonomous vehicle can sense all kinds of information and make decisions during moving out of door. The integrated GPS/INS location system of autonomous vehicle based on data fusion is studied in the paper. Based on the analysis of location methods, such as the Global Positioning System (GPS), inertial navigation system (INS), dead reckoning...
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