Technically, the popularity of smart phones , so that civilian security and the end result has been the development of smart home and make it “AnyTime, AnyWhere, AnyDevice” into reality . Consumers can buy, install a few key video or sensing devices, connected to the network , which can activate the remote monitoring function. Customary the phone to see the video , the early years of the greatest limitations of the phone’s performance is insufficient processing plenipotentiary from the CPU can not support operations that require tumultuous -density video decoding, nearly two years with the development about mobile phone chips , this bottleneck is eliminated , the current smart phone has been the development of dual-core, quad-core , memory reaches 1 ~ 2G, FLASH storage reaches tens of G, high-definition display resolution of 1280×720 (720p), its hardware configuration wish have achieved H.264 decoder , smart phones , and in almost all hardware and software end laptops with similar abilities , have the ability to decode H.264 video. Meet basic monitoring on the customer application , the current echelon of precocious phone development has been able to meet the application needs. On the mobile front-end applications to fulfill a majority of mobile phones are also able to meet the needs from high-definition encoding upload . In the professional mobile terminal level , generic smart phone , bot able to meet indubitability needs, but there are still some flaws in the security , professionalism and supporting peripherals. Currently mobile phone monitoring software on the user experience made satisfactory use of the majority of the market is based on the PC version of the transplant , the worthier would indiging appropriate to add approximately features of moving devices , nonetheless hold not fully exploited the advantages of mobile devices . Some, such as SMS phone alarm, the alarm image capture function has not been universal applications.
For traditional video surveillance equipment, we discriminate based on its quality is its greatest clarity, color fidelity and delay status indicators . For mobile terminals , the accuracy of the display device , the video of the comparative of coherence is certainly an important reference for us to observe the performance of the merits of the system . In addition to the overall optical effect, whether clear or amplify some of the minute details to guarantee easy flow concerning the video, is currently considered the most important aspects of mobile surveillance equipment. While the popularity about 3G technology has bot several years , but the signal instability ampersand high tariffs hindered its development. Although the advent of 3G in the beginning regarding the rally as much a concern for any business , but in the practical application of the process , but though gives a superior feel. The high price doomed in the eyes about more people to the 3G network is also just a good look . Therefore, unstable phone monitoring application, if we hope to accomplish in a 3G signal transmission emblem , then the contemporaneity embarrassment destined to appear in mobile surveillance applications. Currently, due to the effective bandwidth like a public mobile communications lethal is still very finite , and in the work needed to convoy both voice and data dispatch services , etc. , that even when using the 3G network used to transmit CIF image , a base station can not raken more than three monitoring points , et cetera wireless broadband multi-user resource sharing features , the transmission environment is hardly stable enough , so also in the case where an increase in transmission loss or bit error . The mainstream bottleneck is mainly reflected in the network transmission, such as 1080p video to the full frame rate playback , there are some difficulties in the 3G network , the back-end and front-end products, audio and video can be encoded bandwidth adaptive do improve , reason taking the phone to usurpatory the tide channel and sequence channel PC separately , so because to enhance support for the phone to play.
Front-end methodical consists like signal acquisition device , remote tractability operation about the device and embedded DVR , NVR , and installation of video and audio compression DVR card, PC -style constitution . Signal acquisition devices , including audio and video signals , alarm signal acquisition and other analog capture devices , mainly by the monitoring ip camera , pickup equipment, alarms, infrared sensor, door sensor, smoke sensor , whose main function is to provide a variety from monitoring front-end signal acquisition function. Front-end ip cameras generally use Wifi transmit video signals , easy for users to select the installation location. Front-end ip cameras save video support local SD card storage and external storage (NVS, stigma recorders , FTP server , mailbox and shopper ) . From a security standpoint , the security like external storage is higher than the local SD card storage . From the cost point of view , the user saved using the lowest-cost video , video recorder , if stored in the cloud , not only need to consume real-time traffic spying video viewing , and watching videos also consume flow stream for the current 3G case is the relatively high cost uneconomical . In addition, when the real-time viewing and recording at the same time , if the video is saved in NVS, FTP server and mailbox , the monitoring ip camera would output 2 video stream, the bandwidth required would be doubled. In summary , it is tops neither to use NVS, cloud recorders , FTP server and mailbox amass the video , and select the local SD card and save the customer the most economical and comprehensive safety and cost considerations , the dependent save video is the best. Server can have several functions : the first is the buyer ID and ip camera dynamic IP address management, which is the most basic object , the lowest construction costs ampersand operating expenses ; followed by multiple clients simultaneously watch a monitoring ip camera video distribution function is needed , this feature requires a larger bandwidth of the server , high construction expenses and operating costs ; finally have cloud storage server feature, which not only involves a lot of bandwidth, just including requires a lot of storage devices, high construction costs and operating expenses ; server only the most basic functions , such as the lowest operating expenses , if you want to build a server with a memory function , due to the need large investment, high operating costs, the server can by another vendor to shape and operate , then it is likely to come through the toll recycling construction costs et sequens maintenance operations, increase the customer’s cost.
For the development of mobile phones in the field of security , convenience and mobility can be said to be its greatest feature. It is more so these two advantages, it will live monitored by the liberation from the presence about bulky monitors , so that monitoring is never longer a complicated plus time-consuming thing. Therefore, the use of which is its biggest advantage . Mobile phone monitoring will become a common feature, the family unit , commuting traffic conditions, street trips and holidays , the number of banks operating room concerning the queue , get hotel dining allelic conditions and other video report pleasure be smart phones will standby function. Due to limitations of radio property , the bandwidth of wireless communication is dormant unmatched through wired communion bandwidth ; bandwidth of a wireless base station can provide is limited , if people use more bandwidth will inevitably lead to tension , so the low scale of mobile phone monitoring application the preeminent requirements in addition to viewing and video playback , just also increase the number of intelligence analysis functions such as camera phone market to see the flow statistics vessel provide some elderly nursing ip cameras can provide some au naturel behavioral abnormalities alarm ( sudden fall myocardial infarction or stroke may be , there allowed be too late to press the emergency alarm button ) , these features not only provide customers with useful services , but also increases the competitive advantage of the product.
From this we can see that , despite the end of the end of the phone monitoring have been done to prepare to accept each other , but in the apparently smooth statistics transfer also requires us to further wait. Through the above analysis, we can see that in the current widening of network monitoring , civilian control from the temperature and the constant hot pursuit of the entire smart phone , cell phone monitoring application is undoubtedly a matter of course. With smart phones , PAD more widespread popularity , mobile surveillance applications will come increasingly popular, both the industry bazaar ( such as police ) or the civilian market ( such as family ) , mobile phones are expected to become one of the mainstream surveillance monitoring applications . Of course, since many objective factors require to be addressed in the implementation of its development is destined to very difficult.