Advanced Materials Research Vols. 846-847

Abstract: In order to realize the precise identification of eggshell crack, we design eggshell cracks detection method based on image processing and fuzzy neural network. Firstly this method gets two pieces image of eggs and processes, and then counts number of the same gray pixel. Determine five characteristic parameters as the input of fuzzy neural network. Set up a fuzzy neural network. Its structure is 5-10-1. Eggshell cracks and noise in egg images were distinguished using automatically learning and inference rules of fuzzy neural network. Use 147 groups of parameters for training network and rest 58 sample for verifying. Experimental result shows that the model can meet actual testing requirements with fast, stable, high precision and good robustness, easy to implement. Its precision reached 94.55%.

Abstract: In order to detect fertilized chicken eggs nondestructively to improve hatching rate, this paper uses the method of image processing and optimizing BP neural network by particle swarm to identify fertilized chicken eggs. Firstly, we use image collection device to collect images of the unfertilized and fertilized chicken eggs, to extract the feature of egg image, and then determine the input and output vector, while optimized neural network by particle swarm is 5 dimensional input and 1 dimensional outputs. Finally, we use particle swarm algorithm to optimize the weights and threshold of neural network, which can be used to predict the condition of fertilization. The experiment shows that, compared with the traditional BP neural network, it is more accurate to recognize the fertilized chicken eggs when using optimized BP neural network by particle swarm. The rate can reach 98.21%, which meets the requirements of recognizing fertilized chicken eggs.

Abstract: This paper focuses on GEO multi-beam satellite offset parabolic reflector antenna. In this paper, radiation fields generated by different feeds are derived, and phase radiation pattern is mainly discussed. It can be seen from the numerical results that when the feed is at the focal point of parabolic reflector, the beam has equal phase within beam service area. In addition, for offset feeds, phase changes slowly from beam center to beam boundary, and the variation is about 0.1 radian.

Abstract: This paper introduces asynchronous serial design and communication implementation by TI Co.,Ltd TL16C554 based on dual core processorADSP-BF561 and uClinux. This paper has accomplished multiple serial accessing using share interrupt scheme which has already been used in a wireless sense network.

Abstract: This paper introduces design and realization of wireless sensor nodes by ADI Co.,Ltd wireless transceiver chip ADF7025 based on high-performance processor ADSP-BF533 [1] and embedded OS uClinux [[3]. Using dual-threaded technology realizes Communication from semi-duplex to full duplex in the driver, mass data transmit and receive by the method of packing and unpacking. This paper scheme has already been used in a wireless sense network.

Abstract: This paper presents a design plan for the frequency synthesizer base on DDS and PLL of the digital receiver, the main hardware selection is shown. Finally through the system test, the results show that the frequency accuracy of the frequency synthesizer reaches 3.72×10^-8, the resolution is 1Hz, the phase noise is 103dBc/Hz@1 kHz the clutter rejection is 67dB and the frequency conversion time reaches 9.6ms. This frequency synthesizer can produce low phase noise, high resolution and high stability of the broadband signal. It has excellent technical performance, has been widely used in engineering.

Abstract: In the OTN+WiMax control system of Metro, the use of wireless backhaul can reduce costs and increase security. This paper presented a variety of OTN+WiMax hardware solution for Metro monitoring systems for wireless backhaul system by comparing the variety of chips; For WiMAX, Wi-Fi coexisting wireless backhaul situation, we put forward the hardware design using low-power high-speed chip of Infineon's SMARTi hardware design,, and pointed out that the design programme belongs to energy-saving green environmental. Also we used Intel WiMAX Connection 2,400 chip design hardware programme of wireless backhaul system for monitoring. At last, The software radio technology is applied to wireless backhaul system.

Abstract: This paper intends to study in the POCT (point-of-care-testing) combined with microfluidic technology as the breakthrough point. A localization algorithm is used for the ultimate miniaturization, portable, low cost, plug-and-play type PERS detecting instrument, which consist of telemedicine perception layer, and then collected data and location information more effectively transmitted to the server to deal with and feedback.

Abstract: Fushun regional transmission line fault location system design and implementation is introduced in this paper by power Supply Company applying. It is based on 3G communication transmission line fault online monitoring system. In a few minutes after a failure, the type of fault and the fault of the specific position can be given quickly on monitor screen at the control center while the short message information is sent to the relevant personnel on the phone, so that maintenance personnel accurately and quickly rushed to the scene, troubleshooting. The work efficiency is improved and the outage time is shortening by the application of the system.

Abstract: Monitoring emissions of air pollution sources has become a complex and contentious issue. Regulations for continuous monitoring of these sources have expanded dramatically in scope over the past years. To demonstrate compliance with emission limits, and as required by Pollution Control Board, the power plant shall have a Continuous Emission Monitoring (CEM) System installed in each flue of the stack for each unit. This paper will mainly design a set of CEM system for flue gas from power plant. The measurement shall conform to EPA regulations.