With the continuous extension of network technology and application scenarios, structured cabling system also continues to develop. However, the value of all technologies can not be separated from practical application, especially wiring technology. Over the past ten years, super class 5 and class 6 systems have occupied the mainstream market of building wiring for a […]
Category: Security
Components and application of automatic fire alarm system
Automatic fire alarm system plays a very important role in buildings, and fire control module is also an important part of automatic fire alarm system. Fire protection module can be roughly divided into input module, output module, input and output module, isolation module, relay module, switching module, multi line control module and so on. 1. […]
What are the basic principles and application types of gas fire extinguishing system in machine room
（1） Foreword Gas fire extinguishing system is mainly used in the environment that is not suitable for setting water fire extinguishing system and other fire extinguishing systems, such as computer room, important library archives, mobile communication base station (room), UPS room, battery room and general diesel generator room. （2） Gas classification Heptafluoropropane Features: heptafluoropropane (HFC-227ea) […]
Application design and installation of building automation system
Now the building automatic control system is a distributed control system DCS. DCS is a management control mode. Its essence is centralized management and decentralized control. The so-called decentralized control is to set up controllers with microprocessor chips near many equipment (field), and then connect many field controllers called “direct digital controller (DDC)” in a […]
What is the difference between the three transmission cables in monitoring applications
Friends who do monitoring engineering must be familiar with several transmission cables, including coaxial cable, twisted pair and optical fiber. We need to find out the differences between them, their use methods and functions, and the differences among them. 1、 Coaxial cable The central axis of the coaxial cable is a copper conductor plus a […]
Application and Realization of new application of alarm service in fire protection field
As a systematic content, fire safety is a complex composed of many factors such as national policy, science and technology, social consciousness and public behavior. It is an important focus to deepen the development of public service function in the construction of smart city. With the improvement of public safety awareness in the process of […]
Dahua thunder ball linkage application solution can track multiple targets
Once the radar rotates, send troops thousands of miles away. Using radar monitoring, it can accurately report the azimuth and distance. In addition to its important role in combat, radar has also changed the shortcomings of traditional methods in the field of video monitoring, such as different light and shade, fog and haze blocking the […]
Intelligent prevention and control of Dahua self service bank to improve the efficiency of remote on duty monitoring
With the development of science and technology, human living standards have changed with each passing day, and an endless stream of criminal means have been born. As the central link of national economic activities, banks have become the first choice for many criminals. Among them, the unattended self-service bank (ATM) is facing a huge security […]
How to select the appropriate wireless bridge in security monitoring
Wireless bridge, also known as CPE, can be used as a bridge of wireless network. It is generally very common in security monitoring and other application environments. Wireless monitoring is often used in scenic spots, parks, station squares, ports and docks, forest fire prevention, elevator communities, tunnel construction sites and other places. Then, under the […]
How to minimize the faults and errors of weak current, security, monitoring and generic cabling
We all know that weak current, security, monitoring, generic cabling and other projects are very complex, so errors will inevitably occur in complexity, so we should make pre judgment as much as possible to avoid errors. In fact, it is relatively easy to minimize the faults and mistakes of the generic cabling project. We have […]