Abstract： The fault behaviors based on the hardware architecture and physical effect are analyzed in this paper. The rationality of the various fault models are discussed and the weak point of these models are pointed out. The network on chip reliability design methodologies are evaluated based on the analyzing of fault behaviors. If an efficient and reliable network on chip would be designed, the in-depth fault model analyzing should be down before designing.

Abstract：Gas regulator stations are distance away and high dispersion，and traditional monitoring systems can not fully competent to monitor the work of the regulator stations. So this paper uses remote data transmission module by GPRS technology，STM32，WinCC and MODBUS to design a gas remote monitoring system. The system can completely meet the large-scale and long-distance monitoring needs.

Abstract：The DSP chip based on SRAM is sensitive about the space particle radiation, when the laser warning system is working in the space environment, the space particle effect will influence the discrimination of the laser signals and the work of the program. In view of this phenomenon, we come up with a method in the aspect of hardware and software components for single particle reverse design. The article puts forward a plan by taking the watchdog circuit, the triple modular redundancy and error checking to prevent such failures. This method improves the reliability of system operation, ensures the correct implementation of the program.

Abstract： As the existing embedded software error detection method has low performance and big cost, a control flow method of intelligent selection of detection point is proposed. The ruain innovation is that variable frequency and fundamental frequency for blocks are used as two important variables. The basic process is to detect filter restore the standard C code statement to the pseudo-code statement firstly. Then, the pseudo-code is obtained by scanners, and the code is send to the parser, and the control flow graph is extracted. Finally, the before-after dominant tree parser is extracted by procedures, and the node classification is done by the algorithm of finding candidate block. And the block assertions and variables are obtained. Experimental results show that the running time of the proposed method is less than that of RSCFC method in curing codes, but the memory cost and code cost are almost the same, and the execution time ratio is close to 1. The error detection rate is remarkably improved.

Abstract： Based on the reconfigurable technology, a new DSP task dynamic loading method is proposed for the DSP processor in the domestic chip-level heterogeneous multi-core micro system. This method uses the HPI interface of DSP processor as the interface of the program, constructs the configuration path of the bus isolation mechanism in the FPGA chip，and implements DSP task dynamic loading. Test results show that the proposed DSP task dynamic loading method, with 135 ms completed 280 KB size of the code data injection and DSP processor task loading, meets the real-time requirement of micro system.

Abstract： Valve base electronic devices(VBE) is an important equipment in the converter valve system. It is mainly responsible for the triggering and monitoring of the gate driver unit(GDU)in the valve. It is the execution device between the control protection master and the converter valve. The stability and reliability play a vital role in the safe operation of the converter valve system. This paper designs a VBE used in the high-voltage direct current transmission system. This VBE uses FPGA as control core, with the redundancy design of double power supply. The VBE used optical fiber as external communication interface, and encoded the trigger command by frequency-shift keying. Experiments prove that this device is practical, reliable and scalable. Each pulse width modulation(PWM) waveform output form the VBE has a high precision synchronicity. It effectively guarantees the stable operation of the converter valve.

Abstract： This paper introduces a latest broadband microwave frequency source of linear frequency modulation based on AD company′s AD9914, the instantaneous working bandwidth more than 1 000 MHz, overcome the domestic research in the 200 MHz to 400 MHz bandwidth technology bottleneck.At the same time, this paper proposes a feature of using programmable DDS to the phase of signal is piecewise compensation and then the method to obtain high sideband suppression ratio.

Abstract：The performance characteristics of the operational amplifier are analyzed deeply by introducing the lever principle. The circuits working essence of comparator and amplifier, integral and proportional integral circuit, differential and proportional differential circuit, PID controllers are presented. For instance, the essential difference between comparator and amplifier is its different feedback forms, integral process of the integral circuit is a constant current source charges the capacitor, proportional integral circuit is faster than pure integrator and proportional differential circuit is slower than pure differentiator since the resistor in series with the capacitor shares the voltage. These circuits are mapped to the lever principle, and the impact of resistance and capacitance in input and feedback circuits on the circuits’ gain and phase are acquired. The correctness and validity of the theoretical analysis are verified by Saber simulation.

Abstract： So far, the hardware and software design in traditional method is unable to meet the application requirements of fast SoC verification. In this situation, the mixed prototyping verification technology is provided which comprised of the virtual platform and the hardware platform. This paper mainly introduces the hybrid verification scheme of UART IP , analysis of the UART IP core protocol, the design of function modules, and the establishment of FPGA platform. Finally, the UART IP core is verified in hybird prototyping method by constructing a virtual platform and writing testsbench. According to the verification results, the IP core is of good reusability and can be applied in SoC design.

Abstract： Based on the research of TSMC 0.18μm CMOS technology, designed a the low noise amplifier which applied in 3~10 GHz UWB wireless communication system receiving front-end. Utilize the common source structure and common grid structure as the enlarge main architecture, combining with Chebyshev filter. Implementation of UWB in-put matching, and using noise elimination technology to optimize the noise performance of the LNA .This structure has the large bandwidth, input ,matching circuit is simple and the advantages of excellent noise performance.The simulation results show that: With in 3~10 GHz frequencies, S11 and S22 are less than -10 dB,S21 is -15 dB~-10 dB, Noise factor NF is 1.5 dB~2.3 dB, Under the power supply voltage of 1.8 V circuit power consumption is 14.5 mW.

Abstract： Because the load of piezoelectric ceramic(PZT) driving circuit is capacitive, it can generate an additional pole on the loop gain, thereby affecting the stability of the circuit and causing damage to the chip and ceramic when it is serious. This paper establishes the mathematical model of the driving circuit, on this basis, the driving circuit based on PA88 is analyzed and the method for improving the stability of driving circuit is studied. The results of the research show, using the external RC network compensation can effectively improve the circuit stability and solve the problem that the PZT driving circuit can’t work long-term stability, in addition, the optimal parameters of the driving circuit components are given.

Abstract：This paper presents a new architecture of the accurate dual slope analog-to-digital converter. This architecture not only has a higher resolution and a lower conversion time than traditional dual slope analog-to-digital converter but also solve the problem of large capacitance in integrated circuit, the device has a system clock frequency of 1 MHz for a supply voltage of 5 V with an input voltage from 0.5 V to 4.5 V. Experimental results are given to confirm the operation of the proposed dual slope ADC.

Abstract：Partial discharge(PD) instruments were the key to ensure the power equipments and system safety, it was need to regularly check and test. The evaluation of the PD′s linearity test, which was one of experiments, must be carried out. This paper considered the partial discharge signal was random, and proposed the concept of point cloud image, which was based on statistical method and φ-Q-n image, using it to evaluation of the PD′s linearity. For more accurate testing PD instruments host linearity, with the direct pulsed current injection method to evaluation the PD instruments host. According to the test method in this paper, as a test case of MPD600’s linearity, giving a detailed analysis of the linear and experimental process, to verify the feasibility of this method.

Abstract：Compass can constitute integrated navigation system which provides high-precision, highly reliable information for unmanned aerial vehicle(UAV) with GPS or other types of navigation equipments. When using current statistical model(CS model) and standard Kalman filter to deal with dynamic navigation data, dynamic noise and observation noise was unknown and time-varying, and limits of acceleration couldn't be adaptive to the current acceleration of UAV. All of these has resulted in low navigation accuracy. To solve the problem, the paper presents an improved adaptive algorithm which adapts to UAV's motion, and applies to Compass/GPS dynamic navigation system. The simulation shows that it can effectively improve the accuracy and reliability, and adapt to the maneuvering characteristics of UAV better.

Abstract：With the sharp rise in the number of vehicles,the traffic problems caused increasingly serious and traditional methods is more and more difficult to effective management.This paper aims at using RFID and video for tracking and managing for vehicle on the road of city. This system is consisted of RFID and image processing technology to accomplish identifying and matching the vehicles information automatically.The reader, controller and tags are used in this system which supports ISO-18000-6C protocol standards. In addition, video camera is adopted as video part to recognize vehicle license plate, which is for capturing, recognizing and storage video image.

Abstract：Edge detection is an important branch of image processing, and it has a great influence on image recognition and understanding. The system realized the real-time image edge detection based on FPGA and SDRAM. The hardware used pipelining and parallel processing to improve the image processing speed. The algorithm combined with the hardware language programming and IP core module, reducing the development cycle and enhancing the flexibility of the system. Experimental results show that the system can effectively achieve real-time image edge, and the detection effect is good, and can meet the needs of follow-up image processing.

Abstract： Cable force of bridge cable is an important index to measure the safety of bridge. A wireless cable force measure system based MEMS acceleration sensor was proposed. First we introduced the principle of cable force measurement by the method of vibration spectrum, and then we designed the cable force measure system. Finally the precision vibration test bench and real engineering cable test was developed. Experiments show that our wireless sensor system based on MEMS can accurately carry out cable force detection, and can be extended to online monitoring system. It provides an effective method for bridge safety monitoring.

Abstract：This is a multimedia projection system which puts a wearable intelligence ring as the core, adopting the technology including laser frequency conversion,image processingand,video tracking location,wireless communication transmission and wireless FM transceiver. And the system is made up of wearable intelligence rings, wireless transceiver module,image sensor and computer,in which the wearable intelligence rings integrate the function of wireless mouse,wireless laser pointer and wireless voice microphone,achieving the goal of ″three to one″. Compared with the other multimedia projection systems,the intelligence ring is compact and practical as well as portable and power-saving which will invigorate classroom teaching and collaboration meeting with a sense of convenient interactive experience.

Abstract： According to compression sensing reconstruction algorithm of orthogonal matching pursuit(OMP) algorithm the problem of each iteration can't select the optimal atomic, to optimize the OMP algorithm design, ensures that each iteration of the current allowance minimum observation signal, and proposes a kind of optimize the OMP algorithm based on FPGA to realize the hardware structure design.In the matrix decomposition part adopts modified Cholesky decomposition methods, avoid root operation, to reduce the calculation time delay, easy to FPGA implementation.The whole system adopts parallel computing, resource reuse technology, improve the computing speed and reduce resource utilization.In the Quartus II development environment for the design of the RTL description, on the FPGA simulation platform for simulation, the simulation results verify the validity of the design.

Abstract：An acquisition method based on the combination of short time correlation and FFT is designed and implemented for GPS L2 Civil(L2C) signal. The performance of both Return-to-Zero Civil-Moderate(RZ CM) and NonRetur-to-Zero Civil-Moderate(NRZ CM) replica code is analyzed in this paper. The strategy of code phase comparison is also used to improve detection probability. As shown in the simulation results, by using RZ CM replica code and code phase comparison strategy, the detection probability of this acquisition method is more than 90% for the signal with(Carrier to Noise Ratio)CNR at 29 dBHz, and is about 60% for the signal with CNR at 28 dBHz.

Abstract： For the sake of a better performance of multiple input multiple output(MIMO) wireless communication system, a uniform rectangular array based on scalar sensor is developed, and electromagnetic vector sensor(EVS) signal processing method is introduced to the traditional MIMO signal processing method to build up a antenna array based on EVS. Each antenna array′s spatial fading correlation(SFC) closed-form expression is derived to analyze the influence of different angle parameters. Correlation covariance matrixes of both transmitting and receiving terminals are established for analysis of channel capacity of different antenna arrays. By simulating, it′s proved that antenna arrays based on EVS have a better performance as well as application prospect.

Abstract： Global navigation satellite system(GNSS) receiver adopts adaptive antenna array for anti-jamming, the traditional adaptive algorithm may form greater side lobe gain, the null steering is wide in the direction of arrival of interference signal, filtering out some useful signal. For the shortcomings of traditional adaptive algorithm, this paper focuses on beam-forming algorithms based on subspace projection, firstly, adopts orthogonal subspace projection technique to eliminate strong interference signals from received signals, and then improves the signals’ quality through a weighted criterion, avoiding the shortcomings of traditional adaptive algorithm. The simulation results show that the subspace projection technique respectively combines with maximize SNR criterion before correlation or LCMV criterion, and then gets approximately equal SNR, forms a narrow null compared with a single weighted criterion, improving system anti-jamming performance.

Abstract：On the basis of power line channel characteristics, this paper proposes a field programmable gate array(FPGA)-based cross-band power line communication(PLC) channel emulation method, and the corresponding emulator is also implemented. The proposed method can emulate both the measured and the model-based power line channel noises and transfer functions in the cross band of 150 kHz～10 MHz, which provides a convenient and efficient means for the test and optimization of PLC systems. Moreover, a comparison of the PLC system test result measured under real channel conditions with that obtained with the emulated channel conditions verifies the accuracy of the channel emulation and the effectiveness of the proposed approach.

Abstract： Energy detection(ED) receivers have become one of the two mainstream receiver technologies for non-coherent ultra-wideband communication systems due to their simplicity of implementation. Weighted ED receivers were proposed as an improved ED receiver to mitigate the impact of noise on the bit error rate(BER) performance. In this paper, we mainly discuss the adaptive implementation of weighted ED receiver, that is, the adaptive algorithm is used to approximate the optimal weighting coefficients, and then realize the adaptive signal detection. The weighted ED receiver is further developed to perform updating the weighting coefficients adaptively via normalized least mean squares(NLMS) algorithm to optimize the weighting coefficients without the need of complicated matrix manipulation and channel estimation. Moreover, we evaluate the impact of the step size on the convergence behavior of the NLMS algorithm, and the BER performance of the adaptive weighted ED receiver with different dimensions of weighting coefficients. Simulation results show that compared to the conventional ED receiver, the adaptive weighted ED receiver can obtain about 0.5 dB~1.2 dB gain in terms of the BER performance.

Abstract： A three-dimensional(3D) geometric model is presented with a mobile station(MS) located at the center of a 3D scattering semi-spheroid and a base station(BS) located outside of the semi-spheroid. The presented model can describe simultaneously angle of arrival and time of arrival of multipath waves in the azimuth and elevation planes. Closed-form expressions for joint and marginal probability density functions(pdfs) of the angle of arrival are provided as seen from the mobile station and base station are derived. Furthermore, closed-form expressions for joint pdfs of the time of arrival observed at the MS and the BS in correspondence with azimuth and elevation angles are derived. The model is suitable in a macro-cellular environment with a low MS and an elevated base station antenna, where significant scatterers are distributed about the former. Moreover, the obtained theoretical results with some 3D scattering models are compared further to validate the rationality of the proposed model.

Abstract：In this paper, we proposed an improved algorithm based on the iterative least squares with projection(ILSP) algorithm to solve the problem of the blind dispreading of asynchronous code division multi-access(CDMA) signal. Firstly，the asynchronous CDMA signal was modeled as the synchronous CDMA signal with constraints. Then the eigen-decomposition method was employed to the new signal model. The ILSP algorithm was used to estimate the spread spectrum sequence after the synchronous CDMA signal with constraints was projected to its signal subspace. In the end, an MMSE receiver was implemented to obtain the estimation of the information sequence. The theoretic analysis and experimental results show that the performance of the improved algorithm is better than the ILSP algorithm.

Abstract： In order to improve the resistance to differential power attack capability of the ECC cryptographic processor, this paper presents the method of time randomization based on soft interrupt resistance to DPA attack. First the principle of the time randomization against DPA attack is analyzed; and then combined with the operational characteristics of ECC processor, this paper designs a time randomized circuit based on soft interrupt request; finally, power simulation platform is built and the design result is simulated. Simulation results show that the design can resist the DPA attack, and power characteristics of time randomization part in energy trace are not easy to be culled. The design achieves requirements of against DPA attack for ECC cryptographic processor.

Abstract： Abstract： To resolve the key management problem of limited wireless sensor network effectively, a key management scheme for wireless sensor network based on conic curve cryptography was proposed. The proposed scheme could realize the process of the key distribution and the key generation, update and revocation of the new joined nodes, and make the performance analysis from the aspects of security, extendibility and efficiency. The results of experiment analysis shows that the proposed scheme is able to reduce the storage space of the key and have the strong capacity of extendibility and resisting network attacks comparing with the classic key management schemes.

Abstract： For the issues that traditional SQL injection attacks(SQLIA) detection algorithms has high cost and low detection rate in RFID system, a detection and prevention algorithm of SQL injection attacks based on data integrity policy is proposed. It uses data integrity policy to ensure that the data is strongly typed, correct syntax, within length boundaries, contains only permitted characters, and that numbers are correctly signed and within range boundaries, to prevent SQLIA attacks. It detects the SQL injection attacks by observe whether the intention conformity condition, the size conformity condition and the identifier conformity condition observe the intention conformity condition, the size conformity condition and the identifier conformity condition. The experimental results show that proposed algorithm has high execution efficiency. The consumption time of proposed algorithm is only 29.7% of node sequence alignment algorithm and 76.0% of fast alignment algorithm. The detection rete of proposed algorithm is higher than two commonly used detection tools BSQL Hacker and Pangolin with 13.8% and 20.6%, respectively, which indicates that proposed algorithm can ensure the normal query and effectively detect and defense the SQL injection attacks.

Abstract： In order to enhance the security of encrypted communication and robustness, an integer wavelet transform(IWT) and the least significant bit(LSB) replacement based video steganography algorithm is proposed, which can hide and extract video dates composed of the three primary colors red, green and blue. Steganography process is as follows: firstly, covered video frames are divided into 8 × 8 RGB blocks, and the encrypted data are turned into binary formation. Then, IWT coefficients are obtained by executing Haar IWT on covered video frames. Finally, binary data are embedded into LSBs of IWT coefficients. In addition, the reverse process of data hiding is used to extract the hidden steganography video embedded text. The proposed algorithm is implemented using Audio Video Interleave(AVI) files. Experimental results show that the distortion of the proposed algorithm is the lowest.

Abstract： The major EMI source of the power converter is the changes of high voltage and current during the switching transient. An accurate prediction of EMI needs the precise description of the switching transient. First, two common used power MOSFET models, the sub circuit model and the lumped charge model are described. Then the power MOSFET is modeled by the model architect. Finally by using the Saber software，inverter circuit simulation model is proposed to build, the switching waveforms of power MOSFET and the simulation waveforms of the conducted EMI are obtained. It is shown that the model built by model architect tools can reflect the real situation and more accurately predict electromagnetic interference in the circuit.

Abstract： The common used equalization circuits and battery equalization strategies are studied for the balance of serial lithium-ion batteries. Based on the theory of fuzzy control and traditional PID control, a battery equalizer for lithium battery voltage balancing is designed. Compared voltage curves under the fuzzy PID strategy with the equilibrium strategy by the MATLAB/Simulink，the result shows that equalization module based on fuzzy PID controller can reduce the time of the lithium-ion batteries voltage equalization. At end of equilibrium, the distribution of the voltage curves is more concentrated.

Abstract： In this paper，a H bridge ultrasonic transmitting circuit with pulse width modulation is designed, which is composed of PWM circuit, H bridge power amplifier circuit and low-pass filter circuit. The circuit has the advantages of simple structure, high output power, and can modulate the majority of the waveform, easy multi-channel expansion. Through the test of the circuit and the actual circuit, it is proved that the waveform meets the design requirements and can be used for ultrasonic detection and imaging system.

Abstract： This paper presents a kind of dual buck photovoltaic grid inverter with LCL filter. Dual buck inverter of LCL type is no shoot-through, high reliability, low breakdown voltage stress, and by improving the filter from LC into the LCL filter, it improves the filtering system on harmonic generation. Moreover, the volume and weight of filter inductor is lower. In this paper, a detailed analysis about dual buck connected inverter of LCL type working mode is carried out in first. Secondly, the parameters of system are designed. At last, the stability of the system is analyzed in detail. The experiment has verified the above analyses.

Abstract： In order to provide the stabilizing power supply voltage for the ASIC chip used in the smart household appliances, regulator circuit based on RC power supply was designed. The circuit executed RC power supply, half wave rectification and filtering to electric city. Output voltage remained stable because of the regulator circuit with deep negative feedback. It can be effectively prevent interference about power grid and surge voltage. The output voltage was stable at 5.085 9 V after transient analysis. The test results showed output voltage was 5.04 V. The difference between the theoretical and practical values was 0.045 9 V. The regulator circuit has been applied to the electronic products successfully.

Abstract： In this paper, the load distribution grids with electric vehicle charging load is calculated power flow and the results are analyzed, the electric vehicle charging load optimization scheduling is studied, and the optimal dispatching strategy of charging load for electric vehicles based on the peak load shifting and the economic operation of the electric vehicle is proposed. Specific examples demonstrate the effectiveness of optimization scheduling strategy.

Abstract： To address the issue of real-time and robustness to the multi-objects detection and tracking technology in traffic scene, this paper presentes a real time multi-objects automatic tracking algorithm base on Gaussian mixture and sparse optical flow. Moving targets were extracted by adaptive background subtraction algorithm and feature points were used to express targets. Then it established the data association between correlating frames by sparse optical flow algorithm. And it used the template update mechanism to deal with the problem of the big deformation. Experimental results show that the proposed method can be applied to most traffic scenes. It is robust to light and noise and can realize accurate and stable tracking of multi targets.

Abstract： The current block compressed sensing of video usually uses the same measurement matrix to all image block, this method ignores the fact that the structural complexity and the movement varies from different regions in video. Therefore, an adaptive allocation of sampling rate compressed sensing method is proposed according to the distribution feature of the correlations between neighboring frames. It classified blocks into different types depending on the inter-frame correlation, and adjusted different sampling rate to different blocks, total variation algorithm was used to reconstruct the videos to make fully use of the inter-frame correlation. In order to overcome the network environment, this algorithm didn′t distinguish the reference frame and the non-reference frame, each frame was treated equally. The experimental results show that the method can reconstruct high quality video image under low sampling rate, and with the variable sampling rate measurement method, a higher reconstruction quality can be achieved for the regions containing relatively fast movement.

Abstract： Considering that the coherent interference signal leads to "less interference elimination" and the interference can not be removed due to interference disturbance, this paper proposed a novel null broadening algorithm based on the forward/backward spatial smoothing technique. Firstly，this algorithm de-correlates the coherent signals through the forward/backward spatial smoothing technique, then recursive method of steepest descent is used to get the optimal weight vector. Finally, the weight vector is as a "standard" output weight vector and quadratic beam pattern constrains is used to widen the range of null. Through theoretical analysis and experimental simulations verify the correctness and effectiveness of the algorithm.

Abstract： In order to accurately predict the key parameters in the process of biological oxidation pretreatment, a new SVR-ARMA combination forecasting model based on the krill herd algorithm optimization is proposed. Firstly, the improved combination forecast model applies the krill herd algorithm which is good in nonlinear continuous space optimization performance to the parameter optimization process of SVR model and the original data is predicted. Then the ARMA predict model is used to forecast the linear residual of the SVR model and those two parts of projection geometry are added to get the final forecast data. The results show that, compared with the SVR-ARMA combination forecast model and the KH-SVR model, the improved model in this paper has higher prediction accuracy and can satisfy the precision of oxidation reduction potential (ORP) predict.

Abstract： In order to achieve home life become more smart,convenient and other purposes, a smart home system based on Android is proposed.The system has internal and external communicate mode,which makes it possible to control the device by the internal network when the home broadband network is unavailable. The user's configure information and device information are in the gateway，which enables different clients to share information,and realizes the add or delete action dynamically. The status of equipment is obtained by the push technology instead of the polling mode.The APP is designed humanized with complete functions,the use of cloud computing not only realizes the external control，but also facilitates the future system expansion.

Abstract：In order to overcome the drawback that recognition rate declines sharply under the condition of non-constraint, a face recognition algorithm based on curvature and wavelet which is used for contour enhancement is proposed. Firstly, a structure control function is established，which uses the level set curvature to detect the overall structure of the face images, and a fused contour distribution model can be built to get a fused distribution image. Then, wavelet is used to enhance the fused distribution image, and obtain the image with enhanced contour and overall structure, the principal component analysis (PCA) algorithm is used to extract the feature of the enhanced image. Finally, the sparse representation is used for judging the classification of the testing image. Based on the ORL database, the experimental results indicate that the proposed algorithm has a better recognition rate and robust performance than other mentioned algorithms, such as PCA algorithm, SRC algorithm and PCA & SRC algorithm which is the combination of PCA and SRC.

Abstract：The performance of single image super-resolution via sparse coding is promising. But the relatively low speed hinders its real-time application because of the large and complex computation. This paper presents a Proposed Sparse Coding Super-Resolution(PSCSR) algorithm to promote the super-resolution speed. The new method classifies the feature extracted image patches into three classifications with the finite pair of mean and variance. After that, it employs different methods to recover different classified patches, such as Bicubic, NE and SCSR. Additionally, it uses PCA to reduce the patch dimensionalities. In the experiments, the new method is 17.2 s faster than the classic SCSR while the PSNRs are nearly the same. The new method is faster than NE and SCSR with almost the same super-resolution performance.

Abstract： The basic goal of electric system and power enterprise management is to supply power that is secure, of high quality and economical, while the voltage is an important indicator of power quality. By using reactive voltage control technology means to improve the quality of voltage, reduce line's reactive power flow and improve power factor will have direct effect on power system's stable operation, reducing the loss of line, ensuring the safe of industrial and agricultural production, reducing power consumption and so on. This paper presents an automatic voltage control and reactive power optimization system which is adapt to Dalian. The system comes up with the hierarchical control policy of measured dynamic partition.