What Is Video Monitoring?

Video surveillance is an important part of the security system. Cameras and Surveillance in English. Traditional surveillance systems include front-end cameras, transmission cables, and video surveillance platforms.

Video Surveillance

Video surveillance is an important part of the security system. Cameras and Surveillance in English. Traditional surveillance systems include front-end cameras, transmission cables, and video surveillance platforms.

The cameras can be divided into network digital cameras and analog cameras, which can be used as front-end video image signal collection. It is a comprehensive system with strong defense capabilities. Video surveillance is widely used in many places because of its intuitiveness, accuracy, timeliness, and rich information content. In recent years, with the rapid development of computers, networks, and image processing and transmission technologies, video surveillance technologies have also made considerable progress.

The latest monitoring system can use smart phones to perform automatic identification, storage and automatic alarming of images at the same time. The video data is transmitted back to the control host (also a smart phone) through 3G / 4G / WIFI. The host can perform real-time viewing, recording, playback, recall, and storage of the image. In order to achieve mobile Internet video surveillance.

Chinese name

Video Surveillance

Foreign name

Cameras and

Classification

Network digital video surveillance system

Development History

Twenty years

The video surveillance system realizes the integrated linkage of video surveillance and conferences, which can flexibly and effectively manage remote devices. Through the application of video, playback, linkage alarm, monitoring strategy formulation, emergency command and other applications of remote monitoring objects, the dual functions of monitoring and communication are achieved, which fully meets remote monitoring and emergency command in various fields such as transportation, water conservancy, oil fields, banks, telecommunications demand.

At present, for the monitoring system, the user's demand for its functions has reflected diversity and systematization. The requirements are mainly reflected in the following aspects:

remote access. Traditional video surveillance is generally carried out in a small area, and users generally require that the access location is not restricted by the region, and that they can visit the monitored location anytime, anywhere.

Multiple people visit the same monitoring point at the same time. Traditionally, a monitoring point is usually accessed by a monitoring center (user). The same monitoring point is likely to be accessed by multiple users at the same time, and there may be no relationship between these users. The complexity of user access will require the system to strengthen the management of access rights.

Monitoring points tend to be scattered, while monitoring tends to be centralized. The monitoring points belonging to the same user are becoming more and more scattered, regardless of the region. For these scattered monitoring points, centralized management and control are required.

The monitoring system is required to be open and expandable. The same system should support multiple different types of monitoring equipment, and the number of users and the number of monitored points can be easily increased or decreased.

Massive data storage. Networking enables the traditional local video recording function to be transferred to a remote server for implementation, making mass data storage possible. At the same time, the system is also required to have stronger storage, retrieval and backup functions.

information security. The complexity of the system, the diversification of users, and the business characteristics of video surveillance itself inevitably require the system to provide a strong guarantee for information security.

Intelligent video surveillance. The future video surveillance system will not only be limited to passively providing video pictures, but also requires the system itself to be intelligent enough to recognize different objects, find abnormal conditions in the surveillance picture, and issue alerts and alarms in the fastest and best way. Provide useful information to help security personnel more effectively handle crises and minimize false positives and false negatives, becoming a powerful tool for responding to attacks and handling emergencies. Intelligent video surveillance can also be applied to a variety of non-security related scenarios such as traffic management, customer behavior analysis, customer service, etc., to improve user return on investment.

Apply a domain name to each monitoring device, and the DDNS platform system will probe the current IP address of the monitoring device and notify

What is the relationship between the "integration" of video surveillance and the surveillance management platform? In the business era of integrated services, the surveillance management platform includes a variety of security products, from video surveillance to anti-theft alarms, from face recognition to communication management, from The combination of hardware and software management is all necessary content in the monitoring and management platform. To put it simply, the video surveillance management platform can realize the equipment management of the entire network of the video surveillance system. At the same time, it can expand the management scope and increase the management of linkage alarms and access control. All in all, this is the highest state of integrated video surveillance management.

Whether it is a monitoring integrated service or a monitoring management platform, user demand determines the market share. When more and more users pay attention to the "one-stop solution", the monitoring management platform will be very promising. Especially under the promotion of safe cities and intelligent transportation projects, in order to meet the monitoring and storage of hundreds of points or thousands of points, the management platform can not be less.

After a monitoring system enters the commissioning phase, trial operation phase, and after delivery, there may be failures such as: abnormal operation, the system does not meet the technical specifications of the design requirements, overall performance and quality are not ideal, and some "Soft faults." These problems are inevitable for a monitoring project, especially for a complex, large-scale monitoring project.

1. Equipment failure caused by incorrect power supply

2. As some devices (such as cameras with triple-variable lenses and gimbals) have many connection lines, if they are not handled properly, especially the lines connected to the devices are not handled properly, open circuits, short circuits, and line-to-line connections will occur. Poor insulation and incorrect wiring can cause equipment damage and performance degradation.

Trend One Networking: It is no longer a trend. It has come from initial suspicion to consensus afterwards. The discussion about networking as a trend has been going on for almost 5 years. It is time to revise this statement: Networking is no longer a trend, and it has come to us.
From market data, from 2004 to 2007, the share of analog surveillance in video surveillance dropped from 56.9% to 19.7%, the share of digital surveillance in video surveillance increased from 35.7% to 54.4%, and the share of network surveillance in video surveillance increased from 7.4 % Increased to 25.9%. In other words, the proportion of traditional analog surveillance has decreased significantly. Although the proportion of digital surveillance represented by DVR is increasing, its annual compound growth rate is only 11%, and the annual compound growth rate of network monitoring Reached 37%. From 2008 to 2009, based on the speculation that the speed of popularization of network surveillance and the proportion of growth rate increase year by year, it is expected that the proportion of network video surveillance in the entire video surveillance may reach more than 40%, which is close to the proportion of digital surveillance.
From the perspective of industry applications, the main industry markets for video surveillance have also clearly tended to prioritize network surveillance. For example, in government agencies and public security safe city projects, more than half explicitly stated that they would choose network monitoring. In recent years, the financial and transportation industries have shown a clear demand for large-scale networking. After suffering the pain of the inability of analog monitoring and digital monitoring and experiencing the surprises of network surveillance, undoubtedly, networking has become its first choice. The education industry is obviously inclined to network monitoring due to the improvement of network infrastructure without exception.
From the perspective of the network environment, today's networks are fully equipped with the requirements for video transmission and video communication, and everyone's recognition of this is not what it used to be. The main concerns of users initially about networked monitoring focused on the four aspects of network bandwidth, network delay, network stability, and network security. Even on the Internet, stable, clear and smooth interactive video applications can be performed, including video conferencing, video chat, online viewing, etc. The bandwidth, delay, and stability have completely exceeded our previous imagination and can fully meet Video surveillance bears the demand. With the help of security technologies such as user authentication and code stream encryption, networked transmission is actually more secure than analog surveillance bare wire transmission, and it is less susceptible to interference from the external environment.

Trend 2: High-definition: The next milestone is the possibility of high-definition monitoring due to the arrival of networking, and the trend is very obvious. In 2010, high-definition monitoring will be one of the hot topics discussed by everyone, and will become an important factor in opening up the competition gap between manufacturers. Affected by the price and the overall solution, the high-definition monitoring in 2009 was the first to obtain some applications in high-end industries such as finance, transportation, and medical care. As more and more market entrants join the HD video conference market, driving costs down, in 2010, the HD video conference market will gradually mature and gain more application markets.
Why can only high-definition be promoted through networking? To achieve true high-definition monitoring, it is necessary to fully support high-definition in terms of video source acquisition, video signal compression encoding, video browsing, and playback of recorded files. Uncompressed high-definition video signals have two types of transmission methods: analog and digital. The analog transmission generally uses YPbPr component transmission. One high-definition video signal requires three coaxial cables to be transmitted simultaneously. Digital transmission generally uses DVI, HDMI, or HD-SDI transmission. The transmission distance of DVI or HDMI is only a few meters, which is not suitable for monitoring transmission. Although HD-SDI can transmit about 100 meters, it requires high coaxial cables. The price of cables is also very expensive. It can be seen that whether it is transmitted in analog or digital mode, the transmission cost of HD video signals will be significantly higher than that of SD video signals. In addition, current high-definition video sensors are mainly CMOS, and CMOS sensors directly output digital video signals. This digital high-definition video signal is directly compressed and encoded by a DSP or ASIC in a camera, and then transmitted in a networked manner, which is more economical than a camera directly outputting a high-definition signal. It can be said that front-end networking is the basis of high-definition applications, and it can be confirmed from the status quo of high-definition cameras used for surveillance in the market that are basically network cameras.

Trend 3: Popularization: The penetration of the civilian market Because of the advent of networking, the popularity of video surveillance is becoming more and more obvious. The penetration into the civilian market is one of them. Due to the development of networking and the involvement of telecom operators, the application of video surveillance in the civilian market such as shops, homes, and individuals is getting more and more attention, and this type of business is called public business by operators. This market will become the next explosive growth point of video surveillance. The market's business needs are mainly reflected in alarm linkage and mobile monitoring, which specifically involves wireless or wired access to various types of alarm equipment such as infrared, door sensor, smoke sensor, and temperature sensor, and send SMS notifications when an alarm is detected. The user, the user browses the monitoring image in real time through a PC or a mobile phone, and the like. From 2009 to 2010, with the commercialization of 3G, wireless video surveillance will truly remove the barriers to transmission bandwidth, thereby greatly promoting the further penetration and popularity of video surveillance services in the civilian market. ^[2-3]