Analysis of Demands and Solutions for Video Surveillance in Shopping Malls
I. Problems in Video Surveillance in Shopping Malls With large shopping malls, large floors, and complicated decoration, the feasibility of the implementation and the interference with signals must be fully considered in the early design of video surveillance. Choose a reasonable network architecture. When selecting a device, it is necessary to select a suitable hardware device according to the characteristics of different places. Some shopping mall developers, ignoring the importance of security systems, overcompressed investment in video surveillance, leading to irrational design and selection, in the long-term use of the process, highlight problems, but rather than gain. In the face of high-definition camera selection, due to consider the price, rather choose to install a few more ordinary cameras, not only the total price did not fall, but the details of the critical moment is not clear enough, can not reach the purpose of monitoring, similar to this misunderstanding It is also widespread in a certain range.
In the process of use, the general mall video surveillance and access control systems, parking management systems are relatively independent, at most, to achieve a simple alarm linkage, in the use and maintenance process needs to be intertwined between different systems. There is an urgent need for video surveillance in shopping malls. On the network architecture, based on high-definition video products, intelligent analysis is supported. At the same time, it is equipped with subsystems such as access control management, parking lot management, and personnel channel management to form a unified management system for data sharing. With a high degree of integration, it is truly based on the individual needs of each shopping mall and a tailor-made integrated management platform.
II. Demand analysis of video surveillance in shopping malls The shopping malls have a wide range of people and the flow of people is large. Security personnel can only rely on security systems, and through the combination of air defense and technical prevention, it can effectively control the security of shopping malls. Here is a preliminary review of the security needs of our team's shopping mall:
1. Requirements of different departments and places in shopping malls The nature of shopping malls can be divided into business premises, administrative office premises, entrances and exits, and supporting ancillary venues.
Among them, the business premises mainly include: (1) Shelves or counters for commodity display are open-type management. Customers can choose their favorite products and pay for them. This is the most concentrated area for the shopping mall itself, and it is also the easiest. The place where the loss of goods was stolen. In particular, luxury goods counters, which are small in size and high in value, require a clear display of local details. In the event of an emergency, they must be able to notify the Security Office at the first time; (2) Cashiers, which are customers The centralized settlement area is prone to theft, and it is also the place where cashiers and customers are most likely to cause disputes on settlement issues.
The administrative offices of shopping malls mainly include leading offices, financial offices, general affairs, computer centers, settlement centers, storage warehouses, and security monitoring and control center properties. It is necessary to prevent the entry of people who are not busy, and require suspicious personnel to implement timely alarms and complete video recordings.
The main entrances and exits are: (1) Entrances and exits of shopping malls, which are the most crowded and most crowded places, and are the only way to get in and out of shopping malls; (2) Vertical elevators, rolling escalators, etc., need to be monitored in real time, in the event of failure It is convenient to take timely measures; (3) Stairs and fire exits need to ensure smooth and safe access.
The supporting ancillary venues mainly refer to the parking lots. Since there are few personnel, the safety of customers and vehicles needs to be protected.
2. Stores need business hours at different time periods. The business premises have good light, natural light and lighting, and there are certain passenger flow and security personnel.
The analysis of the demand for video surveillance in shopping malls is non-business hours. Normally at night, there may be situations where lights are turned off in administrative offices, stairs, and fire exits. This is relatively a weak security phase.
3, the use of the system The general user of the mall video surveillance system is the security office and leadership. Therefore, the basic requirements are: simple to use, easy to learn and use; maintain system stability and reliability, and easy maintenance. The in-depth needs are: It is best to achieve better interaction and data sharing with other shopping centers.
4. System Management Since malls are mostly chain operations or use multi-level management, there is a need for leaders at all levels to implement remote supervision of all levels of malls through video surveillance. This requires the system to be able to achieve various levels of networking and image transfer and transfer.
Third, the solution to the above basic needs analysis, taking into account the larger shopping mall area, the device signal transmission alignment problem, take the network architecture video surveillance system. Based on today's high-speed network communication technology, the front-end video surveillance signals are transmitted to the back end for storage and display. Because the network has flexible expansion, after the system is completed, it can also be easily and efficiently expanded and deployed according to future regulatory conditions. It is easy to install and maintain, and it can also use the advantages of the metropolitan area network throughout the country to expand business or conduct off-site services. Remote technical support work.
The application of the integrated management software is to facilitate centralized management in the future. It is necessary to integrate management software for a centralized monitoring system to manage all monitoring equipment deployed in the mall. Hikvision iVMS-5000 centralized monitoring and management system software is a networked integrated management platform based on SOA system architecture design. Integrate security systems such as video surveillance systems and intruder alarm systems, uphold the concept of networking, integration, and intelligence, and adopt advanced software and hardware development technologies to achieve centralized management, multi-level networking, and information sharing of SD and HD video surveillance systems. , interoperability, multi-service integration and other functions. The platform can manage video surveillance from tens to tens of thousands of channels, and can be deployed in a variety of network environments, from LAN to WAN, from wired to wireless networks, with a wide range of project adaptability.
The application of high-definition capture technology is based on the objective requirements of the market, and the demand for high-definition is becoming more and more urgent. According to our investigation of incidents in previous incidents, in many cases, during the process of detection, there was an embarrassing situation in which the parties could not be clearly identified when recording the video. Only the incident was recorded objectively and the parties could not be provided with the video. Information has increased the difficulty of the detection of cases. High-definition video surveillance technology can fundamentally solve this problem. The image above is a video single-frame image captured with the help of a high-definition network camera. In high-resolution images, we can easily see that the target is far away from the camera. The location of the image details.
The application of network technology This part is an important part of the video surveillance subsystem, and it is also an important link to ensure that front-end network camera images can be safely, efficiently, and accurately transmitted to the back-end. In this case, a tree-based network architecture was used to build a two-tier network architecture or a three-tier network architecture based on the size of the project. In the construction of small and medium-sized video surveillance systems, Jianye intends to adopt a two-tier network architecture to reduce data forwarding and relay links, optimize the network, and make data transmission more secure and efficient. This architecture is more suitable for smart building applications. The reason is that more than 95% of the data flow in the video surveillance subsystem is one-way transmission, which facilitates the collection and management of data aggregation. Second, the network architecture is more conducive to the impact of fault points. Minimize, in the system troubleshooting, maintenance will not affect the transmission of other regional monitoring equipment, modular maintenance can be modular, block; In addition, the construction and system expansion will also bring great benefits to the project, namely The architecture has better scalability. The nearest network camera can access the system through the same network equipment. The workload of installation and commissioning is greatly reduced, and a large amount of pipeline costs can be saved for the project construction.
The application of high-definition display technology High-definition image acquisition and transmission is of course important. Without a high-definition display system and an efficient control system, this system is still not a high-quality video surveillance system. Therefore, if you want to apply high-definition technology in the entire system, you must have a corresponding high-definition image display and a strong control system to support, allowing users to control the entire video surveillance system, so that high-definition technology can be fully utilized.
The application of mass storage technology HD massive video data must rely on powerful storage devices, using Hikvision CVR direct storage video images can be directly written to the storage by the front-end camera through the streaming protocol. This storage architecture model allows more flexibility in storage and can do more work, such as video cutting, file compression, file encryption, etc., while making video on demand easier and faster.
The application of video intelligent technology The application of intelligent video surveillance technology is an integral part of today's video surveillance systems in shopping malls. With the increasing demand for video surveillance subsystems, the construction of the system has become increasingly large. In the past, traditional video surveillance models were difficult to cope with large-scale systems, resulting in increased workload for staff; long-term duties and fatigue; emerged Failure to respond to the incident directly led to a decline in the overall quality of supervision and management capabilities. Intelligent technology is proposed in the above-mentioned application background. It is an extension of technical defense and is also an application trend of future video surveillance technology.
The application of video surveillance technology is deployed in important places, such as business premises, valuable commodity areas, cashiers, financial offices, storage warehouses, etc. High-definition cameras are used to facilitate real-time monitoring and facilitate local calls to display local details; monitoring points at entrances and exits, parking lots, etc. A camera that can use intelligent analysis function algorithm can statistically summarize the inbound and outbound passenger flow at the entrance and exit, realize face recognition according to needs, realize ticket identification for the parking lot, and even realize parking space statistics with corresponding parking management system. . Ordinary type cameras can be used on the stairways, fire exits, etc. However, for non-business hours and low light conditions, low-light cameras are required. Different video processing technologies are applied to corresponding environments to maximize the performance of the system.