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Scenic comprehensive security management system guards the safety of greenways in Yangtaishan Forest Park

Applications 04 Dec 2019 16:39 Source: Utop
With the development of society and the continuous improvement of people's material living standards, outing tourism has become a way of people's leisure and entertainment. However, the rapid development of the tourism industry has also brought about problems such as crowded people in the scenic area, numerous vehicles, and difficult safety management. By using the integrated scenic area security management system, it helps the scenic area managers to grasp the flow of people at various scenic spots, prevent emergencies, reduce security risks, regulate the order of scenic spots, and ensure the safety of tourists.
Yangtaishan Forest Park is 588 meters above sea level, and is known as the "Shenzhen's first peak in the west", and is rated as one of the eight scenic spots in Shenzhen. The Yangtaishan Green Road is an important part of the green road around the city, with a total length of 27.9 kilometers. It fully displays the beautiful natural scenery of the Yangtai Mountain and the beautiful scenery of mountains, water, cities, and high-speed rail along the line. Great place to play.
I. Project Requirements
As a new bright business card in Longhua District, Yangtai Mountain has become increasingly important to strengthen the construction and management of scenic spots. Especially during the holidays and the Golden Week, tourists gather in large numbers, and there are serious security risks. State and local governments have repeatedly issued documents emphasizing the need to further strengthen tourism safety during the festival and strictly prevent various types of security accidents. Therefore, it is imperative to construct a comprehensive security management system for tourist attractions in Yangtai Mountain.
According to the characteristics of the project and the requirements of design principles, based on the Internet of Things technology, network communication technology, intelligent analysis technology, big data, etc., a comprehensive security management system for tourist attractions is constructed. The requirements for the attractions are as follows:
1) Construction of an all-weather, high-definition, intelligent video surveillance system to meet the needs of modern tourism scenic area security management, to achieve panoramic monitoring of large scenes, and to have better monitoring effects in night and foggy environments and for dangerous parts Intelligent analysis alarm application.
2) Establish a scenic area broadcast system to achieve scenic area propaganda, advertising, and general information release. In an emergency, it can jointly issue emergency notice notification information.
3) Establish an emergency alarm system to realize the linkage of emergency alarms for greenway leisure personnel and public safety and fire protection departments.
4) Establish a complete network transmission system, connecting data of security and management systems, so that relevant internal information can interact normally, safely and smoothly.
5) Construct an overall system with a multi-level architecture, from the street general control center to the scenic area sub-control center, where the street general control center acts as a supervisory role and can spot check the real-time video of the following scenic spots.

Field equipment real shot: camera, switch, lightning arrester, etc.
Solution
1. System networking: ring networking + multi-level cascading
The key requirements of this project are mainly to achieve video surveillance networking and audio broadcast networking. Video surveillance selects network video surveillance. The broadcast system also uses IP audio broadcasting, and the distribution of video points and broadcast points is basically on the same pole. Therefore, in the group network, the same LAN can be selected, and the front-end equipment can also be placed on the same switch.
The green section is 15.1 kilometers north and 12.8 kilometers south. The area length is nearly 30 kilometers, which is not suitable for star networking. Consider ring networking and multi-level cascading, and use one main optical fiber for regional networking, which greatly saves optical fibers and construction, and also increases system stability. The networking topology is as follows:

Topology diagram of integrated security system
Adopting such a system architecture has the characteristics of scalability and openness to facilitate future expansion and integration with other systems. The direct and main function of the video surveillance subsystem is to enable the management personnel to remotely and real-time understand what happened in the important areas of the scenic spot, and to ensure the safety of personnel and property within the supervision area.
2. Key points of the project: Lightning protection
Most tourist attractions are located in open areas in the suburbs. Unlike urban environments, they are vulnerable to lightning strikes. Especially Shenzhen is in a subtropical region. The probability of lightning is high and the year lasts for a long time. According to surveys, the tourist attractions are mainly vulnerable to lightning strikes.
1) Tall buildings in the scenic area, including tall trees, precious ancient trees, and large landscape buildings (structures);
2) Construction facilities in exposed open areas, including gazebos, ropeways, cable cars, recreational facilities with metal structures, etc
3) Weak current system, including monitoring equipment, computer room, network equipment, fire protection system and control system.
3. Expert suggestion: Multi-level lightning protection design
The green road is located in a region with a high incidence of lightning, and the area has high-voltage transmission lines with a total area of nearly 20 square kilometers. The entire system power supply line is in an outdoor environment with strong electricity and a promising environment. It is necessary to fully consider the lightning protection of the entire security network. It is the lightning protection of front-end low-voltage power distribution lines, the lightning protection of outdoor weak current box equipment, and the lightning protection of outdoor monitoring points.
For low-voltage distribution lines, install a surge protector at the main distribution cabinet as the first-level protection, and install a surge protector at the distribution box as the second-level protection, 15m in front of the equipment distribution box or in front of the facility The overhead lines are replaced by buried cables. If conditions permit, all low-voltage power distribution lines should be buried in steel pipes or armored cables, and both ends of the metal sheath of steel pipes or armored cables should be grounded.
At the same time, a lightning protection box with a relatively high protection level is selected, and an AC power surge protector, a DC power surge protector and a network signal surge protection are configured therein.
Considering that most of the cameras are exposed outdoor installations, they are easily affected by direct lightning strikes. This system uses a C-level power surge protector. In addition to its ability to prevent indirect lightning 8 / 20μs, it also has the ability to prevent direct lightning 10 / 350μs.
The AC power supply is equipped with an automatic recloser switch (including a lightning surge protector) to be used in the equipment box. If the environment is harsh, it should also be increased and a DC power surge protector should also be added.
 


Third, the key technology
In order to realize the stable and reliable operation of the system and the smooth transmission of data, this project mainly adopts the following characteristic technologies.
1.PoE power supply technology
Not only can it meet the current power supply requirements of the AF / AT standard equipment, but also focus on the application of equipment with higher power requirements.


2.Transmission technology for industrial complex environment
High temperature + 75 ℃, low temperature -40 ℃;
6KV lightning protection, 8KV electrostatic protection;
Lightning protection level 4 implementation standard IEC6100-4-5;
ESD (static) level 4 implementation standard: IEC61000-4-2;
RS (radiation anti-interference) level 3, implementation standard: IEC61000-4-3;
EFT (Fast Pulse Group) level 4 execution standard: IEC61000-4-4.


3. Industrial ring network self-healing technology
Fast ring network self-healing time <20ms;
Multi-level serial connection, supporting up to 30 switches in series to form a ring network;
Supports dual links and multiple groups of ring networks.


4. Self-healing PoE technology
PoE Watchdog (watchdog) technology, if a PoE device crash is detected, it will restart automatically.


5.One-click smart technology
One-click CCTV: 1-24 port communication is isolated from each other; stream control is optimized to make the video smoother;
One-key LOCK: lock the authenticated port device, avoid illegal device access, and the system is more secure;
One key RING: start fast ring network group 1 (25, 26 port ring network group);
One-button ONLINE: 24-hour online monitoring device (POE watchdog).


Fourth, the program value
The adoption of a stable and reliable transmission system and a self-healing IoT platform can achieve safe and scientific deployment and management of various scenic spots. Utop series products make security network transmission easier. Its core network transmission technology, PoE power supply technology, self-healing ring network technology and self-healing management technology solve the network deployment and management problems. At the same time, Utop products have 6KV lightning protection, 8KV electrostatic protection, rich two-tier and three-tier management, and can be widely used in tourism and security large-scale networking.
Solution integration
Large-scale network deployment can meet the application requirements of multi-level comprehensive monitoring in scenic spots.
Solution intelligence
Scientific networking and intelligent self-healing. Relying on cutting-edge technologies and core strengths such as big data, cloud computing, and cloud storage, we will build smart scenic spots with deep learning and IoT technologies.
Simple operation
Adopt PoE power supply, one-button intelligent technology, self-healing ring network, self-healing PoE, self-healing platform and many other unique technologies. Combined with practical applications, the system design, commissioning, operation and maintenance are simplified throughout the process.
Feature specialization
Utop products adopt unique design, whether it is the product's RJ45 port or the appearance design, product components, chip solutions, and the application of a set of one-click smart technology, which makes the system meet the application requirements of various environments and different networking.
Convenient networking: ring networking or multi-level cascading, saving fiber costs and labor costs;
Simple debugging: no debugging, plug and play;
Stable and reliable: 6KV lightning protection, 8KV static protection, high temperature + 75 ℃, low temperature -40 ℃ wide temperature application.
V. User Perspective: Why Choose Utop
1. Simple networking
Combined with the features of the on-street greenway, the ring network networking scheme is selected to be stable and reliable, simple in layout, convenient to construct, save construction cycles, and save construction costs.
2.PoE power supply
The device provides 802.3af standard PoE power supply, which not only meets the requirements of network networking, but also provides power for front-end equipment, and the networking is simple.
3. Stable and reliable
The product can be used under the industrial wide temperature environment of -40 ℃ ~ + 75 ℃, and has the characteristics of 6KV lightning protection and 8KV electrostatic protection.
4.Simple installation and commissioning
The equipment supports rail mounting and wide-voltage input, which meets the use of power transmission lines in the field power supply system with different pressure differences. At the same time, the device is plug-and-play without debugging or one-button debugging through the WEB; at the same time, it supports the application of one-button ring dialing, which greatly saves debugging costs.
5. Fine service
During the initial scheme design and networking planning, Utop's technicians and customers carried out a careful site survey, and finally chose to choose a stable, reliable, and low-cost ring and cascade networking method to help users save wire and labor. cost. During installation and commissioning, on-site support is provided for easy commissioning. At the same time, organize an expert group to investigate the lightning protection and grounding problems on the spot and provide solutions in a timely manner. Unscheduled return visits at the later stage of the project to ensure system stability.
Recommended Products
4-port industrial PoE ring network switch (uplink Erguang)


UTP7304GE-POE
 4 * 10/100 / 1000BASE-T (PoE port), 2 * 1000BASE-X SFP optical port;
Redundant power supply design, powered by external power adapter;
 IEEE802.3af / at standard, single port maximum 60W, PoE power 150W;
 Supports one-click fast ring network, Layer 2 management, power, port, and PoE alarms;
 6KV lightning protection, 8KV electrostatic protection, -40 ℃ ~ 75 ℃ working environment;
 Supports rail, wall, and desktop installation.
8-port PoE full Gigabit industrial ring network switch (uplink four optical)


UTP7308GE-POE
8 * 10/100 / 1000BASE-T PoE port, 4 * 1000BASE-X SFP optical port;
Redundant power supply design, powered by external power adapter;
 IEEE802.3af / at standard, single port maximum 60W, PoE power 150W, maximum 270W;
 Supports one-click fast ring network, Layer 2 WEB management, power, port, and PoE alarms;
 6KV lightning protection, 8KV electrostatic protection, -40 ℃ ~ 75 ℃ working environment;
 Supports rail, wall, and desktop installation.
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