Mobile surveillance market meets new opportunities and HD will become the future driver

Mobile video surveillance system is flexible and can follow the characteristics of monitoring. Therefore, in some remote places such as mountainous areas, forests, and river basins, where it is impossible to lay conductors, or temporary monitoring sites, there is no need to lay wires, and traditional cable monitoring cannot meet the needs. Only mobile video surveillance is required. To meet the demand. Wireless mobile surveillance is a true “telescope” and “wind-fighting ear”. Therefore, it has the unparalleled and irreplaceable advantages of traditional monitoring, especially in bus, subway, emergency command, on-site maintenance, on-site law enforcement and other applications, the application prospects are very lure people.

We are gratified to see that while network transmission is in favor of the popularization of mobile monitoring technology, mobile monitoring technology itself is constantly improving. Nowadays bus surveillance cameras, mobile surveillance cameras, and individual mobile wireless surveillance cameras are all equipped with night vision functions, and monitoring distances are further and further away, such as the recently launched infrared laser night-vision police vehicle-mounted pan/tilt heads in Shenzhen Baoqianli. The monitoring distance reaches 400 meters.

In terms of applications, mobile phone (or mobile terminal) monitoring is mostly used by enterprise users, industry users, and home users. The market potential of the civilian market is huge; bus movement monitoring is mainly used in the transportation field, and also includes long-distance passenger cars, dangerous goods transport vehicles, etc. The market space is very large; on-board mobile monitoring is mainly used in law enforcement vehicles, including police vehicles, emergency command vehicles, urban law enforcement vehicles, and fire engines; law enforcement recorders and mobile soldier equipment are more professional in relative applications, but they also have Not a small market potential. With the continuous development and maturity of mobile monitoring technologies and the continuous decline in network and deployment costs, the Spring of wireless mobile monitoring and control will surely come. So how big is the mobile surveillance market? In the following, we will only analyze bus movement monitoring as an example.

In recent years, bus mobile monitoring applications can be said to be in full swing, and the installation of mobile surveillance cameras for buses has become common practice. Up to now, Shenzhen has installed more than 20,000 mobile surveillance cameras, installed 3 buses per bus, and networked with public security 110. Images captured by cameras can be transmitted to public security command centers simultaneously. At the end of 2007, Guangzhou City installed cameras for more than 8,000 buses in the city. The total number of cameras installed will exceed 26,000. Cities like Dongguan and Foshan in the same Pearl River Delta have also widely installed mobile surveillance cameras for buses in the city. Most buses are installed with 3, and some with 4 and 2 installed. Dongguan installed mobile surveillance cameras on 6000 buses in the city with a total investment of over 100 million yuan. How many buses are there in the country? There is no statistics available. Only nine cities in Beijing, Shanghai, Shenzhen, Guangzhou, Tianjin, Chengdu, Wuhan, Xi’an, and Chongqing have a total of more than 100,000 buses. The bus monitoring market can be as large as one can imagine. There is also the taxi mobile surveillance market, as much as the bus mobile video surveillance.

In recent years, mobile video surveillance of law enforcement vehicles has risen quietly. Due to the need for on-site law enforcement, many law enforcement agencies such as the public security, judiciary, traffic police, and urban management have installed mobile video surveillance systems for law enforcement vehicles. We take Guangdong as an example. According to the “Three-year Plan for Social Security Video Surveillance System Construction in Guangdong Province (2012-2014)”, more than 70% of all police vehicles in Guangdong Province are required to install a mobile video surveillance system to realize on-site law enforcement. monitor. In the future, this demand will expand and extend to more provinces and cities and more law enforcement agencies, so this market can not be ignored.

Then, in the next few years, can mobile monitoring be equal to fixed monitoring and IP monitoring? Can mobile surveillance become the protagonist of the surveillance market? let us wait and see.

Mobile surveillance how to face the problem of high-definition IP HD IP surveillance is better, the current phase of IP million HD transmission can already be pressed between 2-3Mbps, and 10 million HD transmission can also be suppressed under 6Mbps bandwidth flow control, which for IP The burden of HD transmission and storage can be greatly reduced. However, compared with the transmission of conventional monitoring equipment, the current basic 720P specification calculates that the code stream is about twice as large as D1 and the bandwidth is about 3M. In 1080P calculation, the code stream is 5 times more than D1, and the bandwidth used is about 6M, the same holds true for the storage capacity of the hard disk. As the investment in high-definition camera equipment has increased exponentially compared with CIF and D1 cameras in the past, other ancillary products have also become more expensive, especially for storage equipment.

At present, most of the relevant policies for promoting video surveillance equipment throughout the country require clarity above D1. High-definition applications mainly rely on the promotion of large-scale government-related projects. Local governments are under pressure from land finance, and the funds are very tight. Government funding or government-based funding, the need to implement monitoring projects (such as safe city, intelligent transportation, safe campus, Pingan Hospital, etc.), the amount of money required is very large, but can only minimize the deployment of high-definition cameras. With the construction of safe cities deeper into the third and fourth tier cities, the funding problem may be even greater. The same is true for users who must install video surveillance equipment. The lack of acquisition funds and operating costs is the biggest obstacle to the popularity of high-definition video surveillance equipment.

There are few on-duty personnel, and it is impossible to focus on such a large number of video images for a long time and continuously, and then the clear images are only rushed past, and the security status of the protection target cannot be judged by the real-time images. Only talking about "system equipment can be achieved", does not consider "operators can do", in essence, can not achieve the user's required system goals, which is one of the key issues of the current technical protection projects. Intelligently judging the security status is the urgent and practical requirement at present, and it is the key to improving the effectiveness of project prevention. High-definition is the technical problem that needs to be solved in the process of intelligent application. If high-definition cannot produce effective effects for creating practical smart functions, that is, the actual effect of high-definition on solving security problems cannot be seen, and the relationship of “dependency and interaction” between high-definition and intelligence cannot be seen, and users cannot “spend” it. "Big money" invests in technology venture capital for high-definition products.

The investigation of the insufficiency of the application of high-definition network cameras reflects that real-time and high-definition display problems, the difficulty of integration due to non-standard agreements, and the lack of uniform format standards reflect the most. The main reason for signal delay on real-time display is that high-definition products occupy higher bandwidth requirements, IP video signal packets have higher packet loss ratios, and bandwidth delays cause delays. Currently, network transmission costs in China are relatively expensive. In consideration of the cost, 15 FPS transmissions are considered to cause video streaming problems. In the case of non-standard protocols, the coding methods of various manufacturers are different, resulting in compatibility problems in the back-end decoding. Part of the private protocol SDK standards are not uniform, difficult to integrate, and difficult to integrate; the standard is Another problem that needs to be solved. The national standard “Technical Requirements for Information Transmission, Exchange, and Control of Security Surveillance Video Surveillance Networked Systems” that was implemented on June 1, 2012, ie, the GB/T28181-2011 standard can solve the basic problem of integration of high-definition video and existing systems, but it It's just a standard that basically allows video surveillance to interoperate within a wide range. Video delays caused by network transmission, network dropped frames, insecure video data, and mass storage of data make some users discourage. Therefore, high-definition network only fully solve the network delay, mass storage, and the combination of intelligent analysis and other issues in order to get better development.

The progress with mobile HD surveillance can explain the problem. Although the bandwidth of 3G is much higher than that of 2G and 2.5G, the bandwidth of 3G bears the task of transmission in both uplink and downlink directions. Moreover, since a base station may have multiple users working at the same time, the speed of terminal movement will also affect the speed. Transmission speed (3G can support transmission speeds of approximately 2M/s, 384K/s, and 144K/s, respectively, in indoor, outdoor, and driving environments), resulting in uncertainty in the bandwidth of wireless transmissions. Even the current 3G networks transmit CIFs. Image, a base station can not exceed 3 monitoring points. The 3G operator's customer priority is transmitted in the order of the voice customer, the priority customer, and the ordinary data customer, and the transmission of the ordinary mobile monitoring user is also unstable.

The current 3G network speed can only be used as an auxiliary transmission means of monitoring. The operating costs of the mobile monitoring system include broadband Internet access fees for video sources, mobile phone viewing traffic charges, and monitoring system operating costs. In the 3G network environment, high-definition monitoring cannot be promoted at all. Even China Mobile's 4G network test data shows that the average downlink downlink speed reaches 40Mbps, and the average uplink speed is 18Mbps. Due to the same reasons as mentioned above for 3G systems, it is still very difficult to promote HD.

About mobile monitoring Mobile monitoring refers to the use of dynamic forms of front-end video image acquisition, professional-grade video surveillance products transmitted via wireless or network, which can be received and viewed by mobile methods, such as monitoring remote real-time dynamic images via mobile phones or computers. It is a simpler, more convenient, and more timely monitoring solution for mobile transmission and mobile reception. Mobile monitoring can be said to be the result of a close combination of wireless network technology and traditional security monitoring technologies.

Mobile monitoring products can be broadly divided into two categories: First, mobile monitoring equipment through wireless transmission, monitoring of fixed or non-fixed locations, such as law enforcement vehicles through surveillance cameras mounted on the roof or through law enforcement officers carrying handheld surveillance cameras , Real-time image acquisition on the scene of law enforcement; Second, through the mobile terminal equipment (such as mobile phones), access to fixed surveillance cameras for fixed locations and places collected images, such as 3G mobile phone monitoring. At present, mobile monitoring product forms include: mobile phone (or mobile terminal) monitoring, bus movement monitoring, vehicle-mounted mobile monitoring (mainly law enforcement vehicles), law enforcement recorders, and mobile individual equipment.