Beijing Special Vehicles Research Institute

Beijing, China

Beijing Special Vehicles Research Institute

Beijing, China

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Zhang J.,China Institute of Technology | Wang H.,Beijing Special Vehicles Research Institute
2nd International Workshop on Education Technology and Computer Science, ETCS 2010 | Year: 2010

This paper proposes a new pitch detection method with the combination of morphology filter and wavelet transform. Before detection, a pre-process based on morphology filter is performed to remove the noise. Then the pitch is detected by wavelet transform. Experiments show that this method can realize pitch period calculation accurately and has a better robustness. © 2010 IEEE.


Xin J.-G.,Beijing Special Vehicles Research Institute | Xu Y.-X.,Beijing Institute of Technology | Li C.,Beijing Special Vehicles Research Institute | Gao P.,Beijing Institute of Technology
Binggong Xuebao/Acta Armamentarii | Year: 2014

The response and inflame/initiation of cylinder charge covered with thin shell under the fragment impacts are studied. 1.5 g (∅5.6 mm×7.8 mm) steel fragment is used to impact 3mm thick aluminum plate, thin steel plate, cylinder charges covered with 3mm thick aluminum shell and steel shell, and the experiment process is recorded synchronously with a high-velocity camera. The impact response and inflame/initiation characteristics are analyzed. The research results show that the inflame/initiation of cylinder charge covered with thin shell is mainly caused by the impact and friction of fragment and broken shell pieces, and the temperature of aluminum shell is higher than that of steel shell, so the aluminum shell can be used to increase the probability of inflame/initiation under the high velocity impact. ©, 2014, China Ordnance Society. All right reserved.


Wang J.,Beijing Special Vehicles Research Institute | Zhang Y.,Beijing Special Vehicles Research Institute | Ai D.,Beijing Special Vehicles Research Institute | Pan F.,Beijing Institute of Technology
Applied Mechanics and Materials | Year: 2013

The micro-Extended-Analog-Computater(uEAC) is a newly emergent unconventional computing model under research and development. Although, a single uEAC unit can achieve some classic pattern classification problem, the slop of the classification face generated by uEAC is a constant and moves parallely. So a feedforward array structure is proposed for the improvement of uEAC, and Particle Swarm Optimizer(PSO) is utilized to configure the uEAC array. The analysis of the mapping characteristics and numerical experiments both illustrate the effectiveness of the improvement. © (2013) Trans Tech Publications, Switzerland.


Wang H.,Beijing Special Vehicles Research Institute | Wang H.,North University of China | Li R.,Beijing Special Vehicles Research Institute | Xue H.,Beijing Special Vehicles Research Institute | Pan H.,North University of China
International Conference on Signal Processing Proceedings, ICSP | Year: 2010

The military vehicles seat vibration is one of the main factors affecting the efficiency of crew. In this paper, the wavelet transfrom is used to analyse the military vehicle seat vibration , the vibration energy distribution in different frequency bands is examined by wavelet energy spectrum.The vibration sources of the seat are recogni/ed.and the vibration characters can be identified by the wavelet-scale energy coefficients. © 2010 IEEE.


Wang H.,Beijing Special Vehicles Research Institute | Wang H.,North University of China | Li R.,Beijing Special Vehicles Research Institute | Xue H.,Beijing Special Vehicles Research Institute | And 2 more authors.
2010 4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010 | Year: 2010

The microenvironment factors in the armored vehicle such as the vibration; noise, temperature and the poisonous gas seriously affect the efficiency of the crew. In this paper, the fuzzy comprehensive evaluation and the exposure time of Fatigue Ergonomics lower limits" affected by micro-environment factors are combined, a comprehensive assessment method based on the time index for the armored vehicle micro-environment is established. This method makes the qualitative evaluation to the quantitative evaluation the efficiency of the crew influenced by the microenvironment factors in the armored vehicle. The experimental results show that the model results with the actual situation. © 2010 IEEE.


Du S.,Beijing Special Vehicles Research Institute | Yang H.,Beijing Special Vehicles Research Institute | Zhang Y.,Beijing Special Vehicles Research Institute | Chen Z.,Beijing Special Vehicles Research Institute
Applied Mechanics and Materials | Year: 2013

The limitation of traditional testing tools makes it difficult to test the software of embedded system--the resource insufficiency of the embedded system as well as the strict requirement of real-time all contribute to the unavailability of the normal method for software testing. This document introduced a method about testing of embedded software, which based on code coverage and variable watching by using the software of Testbed and RTInsight. By using this method, it's effective to validate the software testing of embedded system. © (2013) Trans Tech Publications, Switzerland.


Wang J.,Beijing Special Vehicles Research Institute | Du S.,Beijing Special Vehicles Research Institute | Wang X.,Beijing Special Vehicles Research Institute | Ai D.,Beijing Special Vehicles Research Institute
Applied Mechanics and Materials | Year: 2013

Through analyzing the unique requirements of military command and control software and the characteristics of wireless message transmission, this paper studies a new message transmission mechanism based on wireless narrow band transmission, bring forward the proposal of improving wireless message transmission efficiency through improving the message queue transmission mechanism of the software, and verifies it in the new software version. The results show that new transmission technology greatly improves large-scale network transmission effect. © (2013) Trans Tech Publications, Switzerland.


Du S.,Beijing Special Vehicles Research Institute | Wang J.,Beijing Special Vehicles Research Institute | Chen Z.,Beijing Special Vehicles Research Institute | Ai D.,Beijing Special Vehicles Research Institute
Applied Mechanics and Materials | Year: 2013

Nowadays utilized through the network, the majority of the software has their own particular and complex network interface transmission protocols. Which makes the validation of the interface protocols becomes significant and difficult in the interface testing of the software. In this paper, the network interface protocol is analyzed to help validate the software network interface, based on the capture, analysis, construction and the transmission of the packet. By using this method, the software network interface will be more effectively tested. © (2013) Trans Tech Publications, Switzerland.

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