Результаты поиска по 'sensor network':
Найдено статей: 3
  1. Editor's note
    Computer Research and Modeling, 2018, v. 10, no. 3, pp. 279-283
    Views (last year): 18.
  2. Shepelev V.D., Kostyuchenkov N.V., Shepelev S.D., Alieva A.A., Makarova I.V., Buyvol P.A., Parsin G.A.
    The development of an intelligent system for recognizing the volume and weight characteristics of cargo
    Computer Research and Modeling, 2021, v. 13, no. 2, pp. 437-450

    Industrial imaging or “machine vision” is currently a key technology in many industries as it can be used to optimize various processes. The purpose of this work is to create a software and hardware complex for measuring the overall and weight characteristics of cargo based on an intelligent system using neural network identification methods that allow one to overcome the technological limitations of similar complexes implemented on ultrasonic and infrared measuring sensors. The complex to be developed will measure cargo without restrictions on the volume and weight characteristics of cargo to be tariffed and sorted within the framework of the warehouse complexes. The system will include an intelligent computer program that determines the volume and weight characteristics of cargo using the machine vision technology and an experimental sample of the stand for measuring the volume and weight of cargo.

    We analyzed the solutions to similar problems. We noted that the disadvantages of the studied methods are very high requirements for the location of the camera, as well as the need for manual operations when calculating the dimensions, which cannot be automated without significant modifications. In the course of the work, we investigated various methods of object recognition in images to carry out subject filtering by the presence of cargo and measure its overall dimensions. We obtained satisfactory results when using cameras that combine both an optical method of image capture and infrared sensors. As a result of the work, we developed a computer program allowing one to capture a continuous stream from Intel RealSense video cameras with subsequent extraction of a three-dimensional object from the designated area and to calculate the overall dimensions of the object. At this stage, we analyzed computer vision techniques; developed an algorithm to implement the task of automatic measurement of goods using special cameras and the software allowing one to obtain the overall dimensions of objects in automatic mode.

    Upon completion of the work, this development can be used as a ready-made solution for transport companies, logistics centers, warehouses of large industrial and commercial enterprises.

    Keywords: cargo measurement, computer vision, machine learning.
  3. Trifonov S.V., Kholodov Y.A.
    Study and optimization of wireless sensor network based on ZigBee protocol
    Computer Research and Modeling, 2012, v. 4, no. 4, pp. 855-869

    Algorithms of wireless sensor networks operation based on modified ZigBee/IEEE 802.15.4 protocol stack and problems of energy saving with simultaneous decrease of network latency are studied. Theoretical computations are given. Roles distribution and routers schedule assignment algorithms are described. Both results of experiments carried out with real devices and results of simulations with ns-2 (open-source network simulator) are given and analyzed.

    Keywords: sensor network, wireless network, ZigBee, IEEE 802.15.4, discrete-event simulation, optimal schedule.
    Views (last year): 5. Citations: 12 (RSCI).

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