Applied Mechanics and Materials Vols. 462-463

Abstract: The classical regression systems modeling methods only consider the single scene, which has the weakness: partial information missing may weaken the generalization abilities of the regression systems constructed based on this dataset. A regression system with the Knowledge transfer learning abilities, i.e. Knowledge Based ε-Support Vector Regression (KB-ε-SVR for brevity) is proposed based on ε-support vector regression. KB-ε-SVR can use the current data information sufficiently, and learn from the existing useful historical knowledge effectively, so that remedy the information lack in the current scene. Reinforced current model is obtained through control the similarity between current model and history model in the object function and current model can benefit from history scene when information is missing or insufficient. Experiments show that KB-ε-SVR has the better performance and adaptability than the traditional ε-support vector regression methods in scenarios with insufficient data.

Abstract: The text introduced a system based on BP network for the prediction of grape disease. It included the design of a network structure, the selection of parameter for network study, the processing of sample data etc. With the use of BP network model, this system can forecast the extent of grape disease, so it is applicable to the conditions which have many influencing factors, complicated relationship, difficulty of analyze quantitatively and requirement of long-term prediction. Using this system to the prediction of grape disease in Zhuo Lu area Zhang Jia Kou city, the authors obtained a good effect, which is of value to the prediction of grape disease occurrence.

Abstract: Tractor electro-hydraulic hitch system is designed with force-position adjustment function. The method of force-position adjustment is proposed. Under the CCS development environment in DSP, system modules are designed according to the characteristics of TMS320F2812, including raise and drop modules, force-position adjustment module. The feasibility of the design is verified by system simulation.

Abstract: This paper described the functions of PLC counter instructions, analyzed and interpreted typical PLC counter ladder logic programs, applied the PLC counter function and associated circuitry to control systems, and applied combinations of counters and timers to control systems. The ladder diagrams had been verified in Panasonic FP1-C72PLC control unit, and you could use them directly.

Abstract: A novel space vector modulation (SVM) method is proposed with a new approach to judge the sector of the SVM . To predigest complicated calculations of the SVM, the phase voltage signals are used to judge the sector. Discontinuous modulating function is used to reduce the switchings. The switching loss of the SVM is optimized, and the complicated judgement of the sector is avoided. The simulation and experimental results are presented to validate the SVM.

Abstract: In order to observe the feather of traffice of on-ramp system in simulation experiments more truly, four different lane changing rules are presented based on the point of safe-distance. Experiment results show that the lane changing rules do have an important impact on the traffic flow of on-ramp system. The rule without safe-distance could make the capacity of the on-ramp section get its biggest value, while the capacity of upstream and downstream of main road both gets brought down; the rule considering forward and backward safe-distance could make the upstream section, downstream section and the whole system get their biggest value.

Abstract: In order to get the working reference parameter of agricultural machine in real time, a suit of remote monitorsystem software of the high-speed rice transplanter’s working parameter based on VisualBasic6.0 was raised in this paper. When VisualBasic 6.0 program language was taken in the development of the monitor software, the GSM net of the China Mobile Company would be taken in system data remote transmitting and SerialPort controller would be taken in the serial communication, the data between the PC and GSM module happened.

Abstract: The traditional traffic light control system which applies timer control cannot adjust the light time period effectively when the vehicle flow changes. Based on the Cooperative Vehicle Infrastructure System (CVIS), this paper puts forward a scheme that traffic light can be changed adaptively according to the vehicle flow. It realizes the interactive communication among moving vehicles, roadside equipments and control center. As a result, the traffic light time period is regulated by the real-time feedback data.

Abstract: In this article, a new combustion control program would be introduced, which is planned to use fuzzy neural network for intelligent analysis of temperature variation on end fire glass furnace. This program would be adapted to regenerative end fire glass furnace. The actual running of system indicates that the system is in good effect and suitable for the production technology very well.

Abstract: In the previous study, the bus priority control strategies only provide priority for the later bus, while ignoring the adverse effects of the early bus. This paper proposed a reasonable bus priority control strategy taking the arterial coordination control section as research object and aiming to the buses running schedule offset (positive, negative) minimum. Established a double-layer model for reasonable bus priority based on arterial coordination control, the upper layer is arterial coordination control, the lower layer is the bus priority control. In the arterial coordination layer, the detector detects the social vehicle flow data to optimize the communal signal cycle time, green ratio and phase difference; the reasonable bus priority optimization layer, specify the coordination phase green wave band limit as constraint conditions of adjusting the parameters of distribution, and establish the bus priority application model based on timetable, separately control the late and early bus without damaging the coordination phase green-wave.