Weak current personnel must have ten professional and technical knowledge to be eliminated

Security monitoring is a comprehensive multi-disciplinary and multi-technology industry, involving computer technology, network technology, storage technology, engineering technology, optical imaging, control, transmission and other professional technologies.

To become a qualified security monitoring technician requires extensive reserves of many professional technologies, and requires the technician to have a strong ability to use the technology comprehensively. Of course, some people will say that today's monitoring equipment is advanced in technology, and a mobile phone can be used after a scan. I can tell you responsibly that it is not advanced, it can only be called simple, the system level is not used in this way, if the one who is engaged in monitoring is more true to you in this matter, then he will lose. Borrow a popular sentence, even if you lose at a glance.

To be honest, today we will not discuss the technical reserves of software and hardware product developers and engineering implementers, but only talk about the professional knowledge that technical support personnel or technical service personnel of security monitoring should have. Have the opportunity to talk about the technical knowledge of developers and engineers.

1. Computer and network knowledge

Familiar with the hardware of computers and servers, familiar with various operating systems of workstations and servers, WINDOWS, LINUX, SERVER, to be familiar, you can deploy a management platform for a server hardware, this is basic.

Network technology has already entered the era of network video surveillance. Network technology is necessary. Basic network communication principles, network division, subnet mask calculation, NAT, DDNS, routing switching, VLAN division are all familiar, and system debugging is not good. Which one is used. Unicast, multicast, and broadcast should also be understood. What happened to the broadcast storm, what happened to the large-scale network congestion, can be analyzed, UDP does not shake hands, TCP handshake, which method is good depends on the specific network environment, these Knowledge must be mastered. WEBSERVER is no stranger, any monitoring equipment is integrated or built-in WEBSERVER, you use the browser to configure IPC or NVR, you use the WEBSEVICE of the equipment.

Second, database knowledge

The system and scale of the security monitoring system will be a platform or a CMS. Whether it is a B / S or C / S architecture, the server must have one or several sets of software and a database. So it is important to master some database knowledge. MSSQL, MYSQL, etc., can deploy, operate and maintain the database.

3. Software application

OFFICE's troika WORD / EXCEL / PPT must be used, the reason is not mentioned. VISIO needs to use the plan drawing system drawings, AutoCAD needs to see the design drawings, these two software must be proficient in operation. Simple development tools can be used best, but can also be used to understand the scenarios that will be useful. SDK, all equipment manufacturers will provide SDK, secondary development kit, can basically understand the SDK version, the main library files.

Four, hardware tools

Not all systems are networked, and tools such as multimeters, oscilloscopes, and line testers still have to come in handy at critical times, and they will work.

5. Knowledge of monitoring equipment

Needless to say this, CAM, DVS / DVR / NVR, streaming media, decoder, matrix, platform server and other equipment should be familiar and familiar, this is what we are doing.

6. Monitoring expertise

The imaging, coding, compression, key frame, frame rate, and code stream should be understood and used flexibly. Help you solve problems at critical moments.

Seven, store knowledge

Network video surveillance is inseparable from storage, NAS / SAN / IPSAN must understand, give you a storage device to get it. RAID disk arrays, redundancy, and hot standby must be able to get through.

8. Communication knowledge

Familiar with various communication interfaces and protocols, RS232 / 485/422, etc.

Nine, standard

The system plan is to be implemented, how to implement it, there are various specifications, engineering, acceptance, networking, technical personnel still need to understand a lot, what does GBT28181, GB50394, GB50395 say? At the critical moment, in addition to technical excellence, there is also a basis.

10. Engineering Technology

Project quality and construction technology are one of the key factors for the success or failure of the system. Not only the video monitoring system, but also other security systems and weak current systems. Engineering technology is the basic guarantee for system application.

Summarized the knowledge of the ten technical fields that the security monitoring technicians should master, and hope that the friends can have a broader knowledge accumulation and technological breakthroughs.