The rapid growth of the vehicle-mounted monitoring market, in addition to the government's promotion, has played a crucial role in the development of new technologies. The on-board monitoring system involves related technologies in many fields such as electronics, communications, computers, and control, and multi-industry related technologies. With the continuous development and maturation of these technologies, the specifications of on-board monitoring systems will inevitably increase. The emergence of current 4G transmission technologies, It can be said that it brought a new revolution to on-board surveillance. As we all know; the vehicle has been in a moving state while working, unable to connect cables to transmit monitoring data to the monitoring center, and supervisors cannot understand the data and the situation of the vehicle in real time. This has led to the fact that the monitoring can only provide the shock in advance and the retrospective effect. Provide timely feedback and deterrence against ongoing illegal activities and violations. In addition, because the monitoring point and the data storage point are in one place, the data is often damaged after an accident, and the function of video recording and evidence collection cannot be used. In order to solve this problem, some professional vehicle manufacturers have tried to export data in real time through the GPRS network. However, due to the large amount of data generated by the monitoring data in real time, the high-definition continuous transmission cannot be achieved, so the application of on-board monitoring is subject to certain Obstruction. In the face of such difficulties, the emergence of 3G transmission technology provides an important opportunity to solve this problem. At present, the 3G network actually realizes a transmission rate that can fully realize 4-way CIF, clear and smooth video transmission of 13-15 frames per channel. Car video recorder can carry out D1 high-definition video recording while carrying out low-stream transmission, realizing efficient integration of local high-definition video recording and remote wireless real-time monitoring, making the practicality of vehicle monitoring reach a new height. At the same time, through the application of 3G, on-board monitoring can realize real-time monitoring and storage of remote monitoring centers on the basis of audio and video transmission. At the same time, it also extends other more application functions, such as remote alarm function, vehicle running abnormal state alarm, wireless voice function. Wait. However, from the current development point of view, 3G wireless video surveillance technology also encountered market bottlenecks. The bandwidth and frequency resources of wireless networks are more limited. Because the effective bandwidth of a single terminal of a public mobile communication network is quite limited, it is often necessary to carry voice, data, and other transmission services at the same time. Even if the current 3G network is used to transmit CIF images, a base station cannot exceed 3 monitoring points, and the characteristics of wireless broadband are uncertainties in the transmission bandwidth. Currently, 3G networks can achieve a speed of 1M and dozens of slow speeds. The byte, therefore, can only be used as an auxiliary transmission means; the error rate of the wireless channel is relatively high, especially when the terminal device is in a moving state, the available bandwidth and bit error rate index have a significant decline, the available bandwidth often fluctuates, and is high Bandwidth video surveillance data is prone to packet loss, and the reliability is not high. The wireless transmission tariff is also much higher than that of wired transmission. Generally speaking, the cost performance of wired transmission is higher than that of wireless transmission, and broadband transmission is even more so. The operating costs of the 3G wireless video surveillance system include broadband Internet access fees for video sources, mobile viewing fees, monitoring system operating costs, etc. The total operating costs are high, and it is difficult to decline; public communication systems sharing channel resources are in emergency situations. When the local load suddenly increases, it may cause an intolerable delay or even an obstruction problem. At the end of 2013, the Ministry of Industry and Information Technology issued 4G licenses. 4G technology belongs to a brand-new concept in communication technology. It integrates 3G and WLAN technology, can transmit video images with high quality, and the image transmission quality can reach the level of HDTV picture quality. The download speed of 4G technology can reach 100Mbps, and the upload speed can reach 20Mbps, which is about 10 times faster than the current dial-up Internet access. It can provide a more stable and high-speed wireless mobile network, the theoretical download peak value can reach about one hundred trillion per second, and transmission of a video surveillance file may only take a few minutes. 4G technology can easily meet the bandwidth requirements of HD wireless video surveillance In addition, 4G networks will bring new breakthroughs in terms of stability and cost. According to industry sources, the impact of 4G networks on wireless HD surveillance is obvious. If the 4G network can be well resolved in terms of stability, traffic costs, etc., the impact on HD surveillance will be revolutionary. By then, 4G networks will drive the high-definition wireless video surveillance industry forward. In the long run, 4G has many bright prospects and will bring exciting applications. However, the overall application is currently affected by tariffs and carrier networks. If major operators can jointly participate in the construction of 4G wireless networks, , As soon as possible to improve signal coverage throughout the country and reduce network tariffs simultaneously, then the market prospects of 4G vehicle-mounted wireless hard disk recorders will be excellent. Transportation vehicles have always been a potentially large market for surveillance systems. However, due to various factors such as cost, the installation and utilization rate in vehicles is not high. With the increase in the supervision of the safety of vehicle operations by government departments in the past two years, the introduction of relevant policies has triggered a huge potential market. Under the impetus of policies, many provinces and cities such as Beijing, Hebei, Jiangsu, Shanghai, and Guangdong have carried out reconstruction work on passenger vehicles and strengthened the application of video surveillance. In other places, such as Hanzhong City, Shaanxi Province, it is also stipulated that all tourist buses, sleeper buses, and inter-provincial cross-city class buses of the city must be equipped with onboard video surveillance equipment. If they are not installed as required, they may not continue to participate in operations. With the development of society in recent years and the continuous investment and promotion of public transportation by the government, the number of passenger vehicles has continued to grow at a high rate. These are potential on-board monitoring needs. In terms of school buses, with the development of school buses being included in the government's important agenda, the security applications of school buses should not be overlooked. It is understood that the demand for potential professional school buses in China is about 1 million, and the potential market demand is 400 billion yuan. With the gradual advancement of school buses, the development of some auxiliary equipment will be correspondingly promoted. For example, equipment such as safety positioning and safety monitoring will be optimistic about the market demand and prospects of the school buses. At the same time, the construction of the safe city project is in full swing, and investment has been continuously increased. The continuous improvement of the operator's network and the operator's involvement with the advantages of the platform and funds will bring great opportunities for the development of on-board surveillance. In addition, the on-board monitoring system belongs to the branch of the intelligent transportation system and occupies an extremely important position in the huge system of the intelligent transportation system. During the "12th Five-Year Plan" period, the state issued a plan for the development of intelligent transportation. Under the drive of the rapid development of intelligent transportation, on-board monitoring will have greater application and improvement. Water Skiing Rope,Skiing Rope,Snow Skiing Rope Tow ,Pp Multifilament Solid Braid Rope,Hollow Braided Polypropylene Rope Santai Ideal E-Commerce Co., Ltd , https://www.idaovlai.com