Search Results - "Dianzi Jishu Yingyong"

In small and medium-sized permanent magnet synchronous wind turbines, the bridge rectifier + DC / DC converter topology has the advantages of simple structure. The DC / DC circuit has Boost and Buck topologies. Exploring the difference between the maximum power point tracking ( MPPT ) control perfor...

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Addressing the current issues with elderly service robots, such as limited intelligent voice functions, insufficient perception capabilities, and low integration levels, this paper designed a robot with features including facial recognition, voice interaction, and fall detection. The robot is develo...

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In family and medical health monitoring, timely and accurate real-time monitoring of elderly falls is an important topic, and millimeter wave radar has shown great application potential in non-contact fall detection. The traditional method mainly uses the Doppler information obtained by millimeter w...

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Aiming at the requirement of current detection for operational amplifier performance, a new low offset operational amplifier circuit is proposed. The closed-loop current sampling circuit is composed of low-loss op-amp, PMOS tube and resistor. The whole op-discharge route is composed of main op-amp a...

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Wearing a mask can effectively prevent the spread of the virus. In order to reduce the consumption of a large number of human resources in manual inspection of mask wearing, this paper proposes a method of mask wearing detection and tracking based on deep learning, which is divided into two modules:...

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Garbage classification is an important part of building ecological civilization. To solve the problem that heavyweight models are difficult to deploy to mobile devices, an improved garbage image classification method based on YOLOv5 network is proposed. The backbone network fused with GhostNet is us...

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More and more scenarios require approximate membership queries for incomplete query data, but traditional Bloom filters for membership queries cannot meet these requirements. An approximate membership query algorithm for incomplete data based on Bloom filter is proposed. It first preprocesses the mi...

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With the continuous advancement of antenna technology, the importance of near-field measurement techniques is also increasing. In near-field measurements, probe malfunctions or overly large sampling intervals can lead to significant errors in the extrapolated far-field pattern. To address this issue...

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In order to solve the problem of insufficient human-computer interaction ability of ball training partner robots, a new human-computer interaction mode based on Raspberry Pi and YOLOv5 algorithm was proposed, which enabled the robot to realize six different actions: forward, backward, left, right, t...

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In order to meet the requirements of testing the long-term read and write performance of eMMC storage particles, an eMMC life verification design method is studied based on FPGA. Combined with eMMC working principle and high speed DDR（double rate）bus mode, the core components of verification system...

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As the uncertainty and diversity of the reconstruction of the integrated modular avionics system lead to complex problems of the system state, the reconstruction time under different reconstruction modes is analyzed. First, by studying the system architecture and software and hardware configuration,...

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At present, the compressed sampling system mainly includes three sampling system: random demodulator，modulated wideband converter and multi-coset sampling, among them, the system framework of multi-coset sampling is simple and has a high reconstruction success rate. But, the multi-coset sampling fac...

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This article summarizes, analyzes, and interprets the main testing standards for electrostatic discharge of device level charged device models (CDM) both domestically and internationally. The differences and correlations between various standards were sorted out, and the application scope and techni...

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This paper mainly studies the initial networking strategy of distributed space vehicle ad hoc network without initial slot allocation and fixed time reference terminal. In view of the characteristics of space vehicle network topology, small number of nodes, temporary collaborative networking tasks a...

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With the continuous emergence of emerging applications, more and more businesses require reliable transmission with low latency and low jitter. Especially in industrial scenarios, the number of access network devices has surged, and the network is developing towards large-scale and complex direction...

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The traditional frequency selective surface（FSS）radome has the problem such as high structural profile and insufficient out of band cut-off performance. A design method for low-profile and band-pass FSS radome with steep out of band cut-off in K-band is presented. By using multilayers non-resonant c...

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A vertical interconnection structure based on a stack of multi-layer silicon interposer boards is designed. The simulation results of the vertical interconnection structure of the two interlayer structure not considering and considering the SiO2 layer on the silicon surface were compared in the DC-6...

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Aiming at the problem of auto switch of emergency incoming power supply and standby traction transformer in the intelligent traction substation of electrified railway due to voltage loss of incoming power supply or fault of traction transformer, a networked auto switch scheme based on Goose and SMV...

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Aiming at the problem that the traditional multi-channel S-type thermocouple temperature measurement system has low measurement accuracy and each channel is quite different, a high-precision S-type thermocouple temperature measurement system based on FPGA is proposed.The system uses FPGA as controll...

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With the increase in usage years, road surface damage such as unevenness occurs, and fast and effective road roughness detection equipment is urgently needed to detect the road. In this paper, we design a multi-sensor data synchronization acquisition system for road roughness detection, with FPGA as...

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