scholarly journals AMPLIFIER DESIGN FOR MODELING THE TRANSMISSION OF A DIGITAL VIDEO SIGNAL OVER A DATA TRANSMISSION CHANNEL

2021 ◽  
Vol 445 (1) ◽  
pp. 39-45
Author(s):  
M. Amreev ◽  
R. Safin ◽  
T. Pavlova ◽  
E. Temyrkanova ◽  
Y. Garmashova
Keyword(s):  
Transmission Line ◽  
Video Surveillance ◽  
Video Transmission ◽  
Main Task ◽  
Surveillance Systems ◽  
Video Signals ◽  
Ohmic Resistance ◽  
In Series ◽  
Amplifier Design

The use of video surveillance systems is used in the areas of security, law and order, in the territories of protected objects, in monitoring the movement of road vehicles and in other areas. The main disadvantage of a video surveillance system is its susceptibility to weather influences (rain, fog, snowfall, etc.), which degrades the quality of the video system by reducing the signal level. Therefore, the urgency of finding new ways and possibilities to improve the quality of video signals is one of the priority areas of signal processing. The main task of this work was to determine the main parameters, simulate the transmission line and amplifier, and select the schematic diagram of the transmitting and receiving path with the voltage and current ratings. Both the receiver and the cable video transmitter have different means of adjusting to different transmission line lengths. The signal at the output of each receiver should be in the range from 0.9 to 1.1 V, and the spread of the total ohmic resistance of the wires of the video transmission line at the input of the receiver should be no more than 2 – 3%. Based on these parameters, the equipment is configured for transmitting video over the channel. The magnitude of the mismatch is regulated by potentiometers, which allow smooth adjustment of the video transmission equipment [1]. As a rule, video transmission over the channel is carried out at a distance of 50 to 1500 m. If it is necessary to transmit video at distances less than 50 m, additional resistances are connected in series at the receiver input so that the total line resistance is 30 - 50 Ohm [1].

An Intelligent Traffic Engineering Method over Software Defined Networks for Video Surveillance Systems Based on Artificial Bee Colony

2016 ◽  
Vol 12 (4) ◽  
pp. 45-62 ◽  
Author(s):  
Reza Mohammadi ◽  
Reza Javidan
Keyword(s):  
Video Surveillance ◽  
Traffic Engineering ◽  
Surveillance System ◽  
Artificial Bee Colony ◽  
Heuristic Algorithms ◽  
Optimal Solution ◽  
Video Data ◽  
Surveillance Systems ◽  
Bee Colony

In applications such as video surveillance systems, cameras transmit video data streams through network in which quality of received video should be assured. Traditional IP based networks cannot guarantee the required Quality of Service (QoS) for such applications. Nowadays, Software Defined Network (SDN) is a popular technology, which assists network management using computer programs. In this paper, a new SDN-based video surveillance system infrastructure is proposed to apply desire traffic engineering for practical video surveillance applications. To keep the quality of received videos adaptively, usually Constraint Shortest Path (CSP) problem is used which is a NP-complete problem. Hence, heuristic algorithms are suitable candidate for solving such problem. This paper models streaming video data on a surveillance system as a CSP problem, and proposes an artificial bee colony (ABC) algorithm to find optimal solution to manage the network adaptively and guarantee the required QoS. The simulation results show the effectiveness of the proposed method in terms of QoS metrics.

scholarly journals CCTV, Risk Management and Regulation Mechanisms in Publicly-Used Places: a Discussion Based on Swiss Examples

2002 ◽  
Vol 2 (2/3) ◽  
Author(s):  
Jean Ruegg ◽  
Valerie November ◽  
Francisco Klauser
Keyword(s):  
Risk Management ◽  
Video Surveillance ◽  
Spatial Relations ◽  
City Centre ◽  
General Context ◽  
Surveillance Systems ◽  
Different Types ◽  
Regulation Mechanisms ◽  
Definition Of

This paper focuses on the relations between different types of actors involved in both conceiving and using video-surveillance systems. More specifically, it deals with the reasons that support the growing use of video-surveillance systems, and the organisation structures and implementation schemes that are designed to cope with them. The analysis raises issues linked to the complexity of social and spatial relations that CCTV tends to produce. Based on four Swiss case studies chosen in function of different objectives (risks), different types of public spaces that are under surveillance (city centre, motorway, industrial zone, public transport), as well as different stages of completion of a CCTV project, the main results are to document new categories of actors: the definition of the relationship between CCTV-providers and end-users must be enlarged. Many more actors are playing important roles in terms of risk management and decision making while designing and implementing CCTV systems. Risks under surveillance: different types of risks are under surveillance. The study is underlining that different forms of surveillance must be distinguished, given the spatial characteristics of every risk (diffuse, located, specific and/or territorialized). The 'distancing effect': CCTV obviously creates distance between the object and the place where surveillance is actually made. To go a bit further, the paper claims that several kinds of distancing effects should be considered. These distancing effects modify both the quality of places under surveillance and the general context where mechanisms can be designed and implemented for a better public regulation of CCTV uses.

Video Surveillance System Applications

2014 ◽  
pp. 311-333
Keyword(s):  
Video Surveillance ◽  
Surveillance System ◽  
Video Transmission ◽  
Digital Transmission ◽  
Design Guidelines ◽  
Video Surveillance System ◽  
Recording Technology ◽  
Video Signals ◽  
Effective System ◽  
Schedule Type

The fact that video surveillance is such an effective system especially when one thinks of its widespread use attests to its low investment cost. This chapter contains information about design guidelines, hardware information, specific examples, and necessary parameters to be addressed while designing representative security video surveillance system applications: protection of all assets and personnel, calculation of the overall cost of the video system, surveillance target (assets and/or personnel), surveillance timing schedule, type and number of cameras needed, camera placement, field of view required, console room monitoring equipment, number and types of monitors, number of displays per monitor, number and type of recorders, digital recording technology needed, type of video switchers, type of video printer, if additional lighting is required, if intensified or thermal IR cameras are required, if sensors at doors, windows, and perimeters that are integrated with video signals are needed, digital video motion detectors placement, IP cameras, type of signal and video transmission, type of digital transmission, type of 802.11 protocol, type of compression (MPEG-4 or H.264), and the necessity of encryption or scrambling.

scholarly journals VIDEO SURVEILLANCE SYSTEMS FOR RAILWAY TRANSPORT

2020 ◽  
Vol 17 (5) ◽  
pp. 298-314
Author(s):  
M. R. Ivashevsky
Keyword(s):  
Video Surveillance ◽  
Traffic Safety ◽  
Data Transmission ◽  
Surveillance Systems ◽  
Video Signals ◽  
Video Information ◽  
Advantages And Disadvantages ◽  
Intelligent Video Surveillance System ◽  
Train Driver ◽  
Data Transmission System

The article is devoted to analysis of ways to increase train traffic safety. One of ways to reduce accident rate on railways is timely detection of dangerous objects and notification of all traffic participants, primarily, the driver. Such a notification can be performed with the help of intelligent video surveillance system (IVS). The objective of the article is to study the possibility of using IVS to increase train traffic safety. Method (way to achieve the objective) consists of several stages: development of criteria of compliance of functional possibilities of IVS with tasks to increase train traffic safety, assessment, and calculation of permissible values of fitting criteria. The work suggests a scheme of organization of IVS based on fiber-optic data transmission system (FOTS) and data transmission network, highlights advantages and disadvantages of IVS, formulates requirements for IVS. Advantage of video surveillance is availability of video information about an object to a train driver, which allows to timely prevent an accident. Disadvantage of IVS is high probability of false detection, which can lead to false triggering of a system. To reduce the number of false triggering there are two ways: improvement of algorithms of video analytics in recognition device (RD) and increase of quality of video signals at the input of RD. The work is devoted to reduction of probability of false triggering due to improvement of communication quality. It is noted that an efficient method is the use of a new element base of electronics based on nanostructured materials. These materials allow to improve optoelectronic characteristics of main elements of IVS which are photosensors and photoreceivers.

A Load Balancing Mechanism for Video Surveillance System

2014 ◽  
Vol 1049-1050 ◽  
pp. 2079-2083
Author(s):  
Jin Xue Pan
Keyword(s):  
Quality Of Service ◽  
Load Balancing ◽  
System Design ◽  
Video Surveillance ◽  
System Performance ◽  
Surveillance System ◽  
Video Surveillance System ◽  
Surveillance Systems ◽  
Cooperation Strategy

In recent years, with the development of video surveillance systems, the cluster and load balancing technology need be applied to improve the system performance and the quality of service. In this paper, on the basis of common load balancing algorithms, considering the characteristics of the video surveillance system, design a new load balancing scheduling mechanism, by improving the weighted round robin algorithm and introducing the nodes cooperation strategy. The testing results show that the new mechanism can distribute the loads more reasonably and make use of the server resources more effectively.

An Intelligent Traffic Engineering Method Over Software Defined Networks for Video Surveillance Systems Based on Artificial Bee Colony

2019 ◽  
pp. 360-377
Author(s):  
Reza Mohammadi ◽  
Reza Javidan
Keyword(s):  
Video Surveillance ◽  
Traffic Engineering ◽  
Surveillance System ◽  
Artificial Bee Colony ◽  
Heuristic Algorithms ◽  
Optimal Solution ◽  
Video Data ◽  
Surveillance Systems ◽  
Bee Colony

In applications such as video surveillance systems, cameras transmit video data streams through network in which quality of received video should be assured. Traditional IP based networks cannot guarantee the required Quality of Service (QoS) for such applications. Nowadays, Software Defined Network (SDN) is a popular technology, which assists network management using computer programs. In this paper, a new SDN-based video surveillance system infrastructure is proposed to apply desire traffic engineering for practical video surveillance applications. To keep the quality of received videos adaptively, usually Constraint Shortest Path (CSP) problem is used which is a NP-complete problem. Hence, heuristic algorithms are suitable candidate for solving such problem. This paper models streaming video data on a surveillance system as a CSP problem, and proposes an artificial bee colony (ABC) algorithm to find optimal solution to manage the network adaptively and guarantee the required QoS. The simulation results show the effectiveness of the proposed method in terms of QoS metrics.

Status of nondestructive control of transport function metal products at JSC EVRAZ NTMK

2020 ◽  
Vol 76 (6) ◽  
pp. 586-590
Author(s):  
S. P. Bersenev ◽  
E. M. Slobtsova
Keyword(s):  
Crack Detection ◽  
Middle Part ◽  
Control Line ◽  
Magnetic Powder ◽  
Nondestructive Control ◽  
Automated Control ◽  
Ultrasonic Control ◽  
Acoustic Contact ◽  
In Series

Achievements in the area of automated ultrasonic control of quality of rails, solid-rolled wheels and tyres, wheels magnetic powder crack detection, carried out at JSC EVRAZ NTMK. The 100% nondestructive control is accomplished by automated control in series at two ultrasonic facilities RWI-01 and four facilities УМКК-1 of magnetic powder control, installed into the exit control line in the wheel-tyre shop. Diagram of location, converters displacement and control operations in the process of control at the facility RWI-01 presented, as well as the structural diagram of the facility УМКК-1. The automated ultrasonic control of rough tyres is made in the tyres control line of the wheel-tyre shop at the facility УКБ-1Д. The facility enables to control internal defects of tyres in radial, axis and circular directions of radiation. Possibilities of the facility УКБ-1Д software were shown. Nondestructive control of railway rails is made at two facilities, comprising the automated control line of the rail and structural shop. The УКР-64Э facility of automated ultrasonic rails control is intended to reveal defects in the area of head, web and middle part of rail foot by pulse echo-method with a immersion acoustic contact. The diagram of rail P65 at the facility УКР-64Э control presented. To reveal defects of the macrostructure in the area of rail head and web by mirror-shadow method, an ultrasonic noncontact electromagnetic-acoustic facility is used. It was noted, that implementation of the 100% nondestructive control into the technology of rolled stuff production enabled to increase the quality of products supplied to customers and to increase their competiveness.

Perilaku Birokrat Dalam Pelayanan Publik Di Distrik Asologaima Kabupaten Jayawijaya

2020 ◽  
Vol 12 (2) ◽  
pp. 93-100
Author(s):  
Yoel Tabuni
Keyword(s):  
Consumer Satisfaction ◽  
Rapid Development ◽  
Main Task ◽  
Government Administration ◽  
Following Instructions ◽  
District Government ◽  
The Times ◽  
Rule Governance ◽  
Descriptive Method

In line with the rapid development of the times and the increasingly complex problems faced by the state, there has also been a development in government administration which has been marked by a shift in the paradigm of governance from Rule Governance. This situation makes the bureaucracy rigid, in an environment that is only limited to flowing the instructions or following instructions. The district government in an Asologaima District has the main task of carrying out part of the authority delegated by the district head in the fields of government, economy, and development, society, peace, and order as well as coordination.The method is sed is descriptive method. Bureaucrats as providers of public services must be able to provide quality services, the quality of service of bureaucrats to society is closely related to customer satisfaction or consumer satisfaction as the recipient of the service itself.

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