6:00 teach you buy ATM video surveillance DVR!
ATM number DVR (DigitalVideoRecorder referred to as ATM-DVR) much expanded set of technology HRC-168 tape recorder, screen Splitter , Video switches, controllers, remote transmission of all functions into one system, itself can be connected Alarm Probe, alarm, alarm linkage functions to achieve, but also for the image motion detection, can be controlled by decoders Head And lens, the image can be transmitted through the network and control signals. Compared with the traditional analog control systems, hard disk video recorder one of the most notable feature is the network simply can facilitate the achievement of sub-network monitoring and control, analog systems can not match advantage. Digital hard disk recorders is a new security industry trends, and rapid alternative to traditional analog systems and equipment.
Now Market There have been many brands and types of ATM digital hard disk video recorder (DVR), both foreign brands, but also the country Product Licenses; have PC-style, there are embedded; PC-style can be further divided into the WINDOWS operating system based on LINUX operating system and so forth. The face of numerous market digital hard disk recorders (DVR), people should make a choice?
Based on our years of security industry experience, we recommend Contractors And the user should choose the following six aspects of test and meet the requirements of the ATM's own DVR.
1, excluding common fallacy views Fallacy view 1: Windows operating system instability, affect the stability of the hard disk video recorder
System stability depends on two aspects: hardware and software, software, operating systems and video software has two parts, both Windows98, WindowsNT, Windows2000, or WindowsXP, is common throughout the world very good software, but as a ATM DVR using only a small part of the operating system function, there is no reason to suspect any kind of operating system stability.
But appear in the course of the work of instability, crashes, etc. What causes the problem? Hardware configuration can be 100% is unreasonable or video software (application software) programming irregularities caused crashes.
Fallacy view 2: a multifunctional card lead to hardware conflicts, affecting system stability. This problem is often used
Technology Mature video compression card or cards due to piracy, the other reason is that the hardware system settings. Of a machine is widely used industry standard card, there is no reasons to doubt the stability.
Fallacy view 3: DVR always "crash"
New generation of ATM digital hard disk recorders are generally software or hardware watchdog protection system, when a hardware failure occurs, it will send alarm; the event of software failure, it will automatically restart, automatic recovery. Therefore, the control room unattended as safe to use.
Fallacy view 4: ATM Embedded DVR will not "crash" Embedded DVR
Although ATM machine from the PC software environment on the surface completely solved the crash problem, but if the hard disk failure, it is according to admitting error. In fact DVR hard disk failure is one of the main fault.
Fallacy view 5: PC-style hard disk video recorder has been lagging behind, is the development of embedded hard disk video recorder
PC-type ATM DVR is always synchronized with the development of IT industry in the network transmission, picture quality, such as video processing embedded systems are far superior to the other in the operational use on the intuitive, flexible, rapid, and is embedded The system can not match, but its biggest weakness is vulnerable to man-made malicious damage, and this is precisely the advantages of embedded system. So now two types of ATM DVR strong points, there will be a period of cohabitation.
Second, select the brand of intellectual property rights protection
Buy brand much Billiton HRC-168 ATM DVR means chosen qualified hardware, choose genuine software, software upgrades available in the future, if the system needs to change or expand, you can seek technical support to developers, not upfront investment waste, to protect their investment interests.
3, select the certification examination through the legitimate institutions of qualified machine
My DVR the only legitimate testing organizations are: Ministry of Public Security and Police Electronic Products Quality Inspection Center
Truly effective inspection report on their inspection categories should be: type test
My DVR the only legitimate authority is the production license: provincial Public Security Department
4, select the latest video compression technology, machine age
By video compression technology, for existing DVR has entered the fourth generation:
MotionJPEG compression algorithm using the first generation, characterized by large files, very consuming system resources, so the network transmission is slow; the advantage of clear image.
Second-generation use of MPEG-1 compression algorithm, video compression processing all completed by the video card (hardware compression), do not take up CPU resources, so performance is very stable, and there is still relatively large amount of data is difficult in the current common WAN transmission.
Third-generation MPEG-4 compression algorithm used, is characterized by smaller streams, ideal for real-time audio transmission on the network video image; pure hardware compression, performance is more stable, and therefore can be integrated more powerful.
Fourth generation is the most fire H.264 our friends, other non-mainstream compression algorithm there are some, not to introduce this.
5, choose powerful, highly integrated intelligent machine can be
6, choose a convenient easy to use and manage-friendly machine
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