Mobile IPv6 routing is a shortest path optimization problem. The two most famous shortest path algorithms are Dijkstra\'s algorithm and Floyd\'s algorithm. The time complexity of these two algorithms is O(n3). This paper proposes an optimization algorithm for finding the shortest path by studying and analyzing these two classic algorithms. The time complexity of this algorithm is O(e*n). In a connected graph, this algorithm can reduce the number of iterations by nearly 50% compared with Floyd\'s algorithm. In a non-connected graph, e
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Sensorless Control of Brushless DC Motor Based on ML4428
This paper introduces the control strategy of the currently commonly used brushless DC motor without position sensor, analyzes the principle of back-EMF detection and commutation, and the functions, parameter settings and applications of ML4428. ML4428 sensorless smooth start brushless DC motor PWM controller is an ideal brushless DC motor drive device. Keywords: ML4428 chip brushless DC motor sensorless control
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Research and Design of Embedded Memory Database
In recent years, various embedded memory databases have emerged, but due to various reasons, many products are not universal, efficient, and reliable, making it difficult to promote them in the market. In view of the above situation, a new design method for embedded memory databases is proposed. This method combines the currently popular Java language and object-oriented ideas, makes full use of the multi-threaded mechanism of the Java language itself, and studies the transaction model, checkpoint method and recovery strategy of the embedded memory database based on the multi-threaded mechanism. At the same time, the storage management and index mechanism of the database are discussed. Practice has proved that compared with other products, this method can greatly improve the performance of embedded memory databases.
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PRS778 microcomputer transformer protection device
PRS778 microcomputer transformer protection device
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Harmonic Suppression in Inverter Power Supply
Harmonic Suppression in Inverter Power Supply
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GTL2002 2-bit bidirectional low voltage converter chip introduction
GTL2002 is used for GTL-TVC to provide high-speed voltage translation with low on-state resistance and minimal broadcast delay.
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Application of single branch reconstruction method based on wavelet transform in vortex flow sensor
Based on the principle of wavelet transform denoising and the practical application of structural vortex flow sensor, a wavelet filtering scheme suitable for frequency counting of vortex flow sensor is proposed, and a method for selecting the filter is given. Based on the working principle of vortex flow sensor, this improved repurchase counting can meet the measurement requirements. The effectiveness of the method is confirmed by analyzing the example signal.
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electronic