April 06, 2023
With development of computer technology, network technology and security systems, modules such as visual inspection system and electronic patrol system are widely used in residential areas and other crowded places. Below is content about knowledge of security monitoring equipment compiled by editor, hope you enjoy it!
Basic Knowledge of Security Monitoring Equipment - Installation and Use Guide
When installing a surveillance system, first decision is whether to install a surveillance card on an existing computer or use built-in hard disk video recorder as a surveillance host. Using a computer to install a monitoring card requires a relatively small overall investment and is suitable for locations familiar with computer installations that are professional and require more features. The computer needs to be turned on 24 hours a day, use of built-in hard disk video recorder does not require professional knowledge, no need to be on duty, and operation is very simple, as convenient as using VCD;
Secondly, when installing monitoring equipment, it is necessary to determine number of cameras to be installed, as well as determine monitoring range and image quality of each camera. First determine number of surveillance cameras, and then determine observation range of camera lens depending on specific situation: it is necessary to clarify distance from camera to observation point and controlled area. that enough cameras with 480 TV lines.
Third: Do you need a night vision function? If your monitoring equipment is installed in dark places such as corridors, hallways, aisles, warehouses, etc., you may want to consider cameras with infrared night vision features. It should be noted that infrared cameras In addition to professional night vision or special order, infrared cameras also need to have light on stage to help five fingers, and infrared distance will be doubled. If site is a garden lawn, infrared effect is even worse.
Fourth: direct wiring or wireless transmission for installation. In addition to high price, a wireless network eliminates hassle and unsightly installation of a camera, but you need to pay attention to distance and obstacles. In principle, cement building materials will shorten wireless transmission distance, and metal materials will completely block wireless signal. The transmitter (camera side) and receiver (host side) should be far away from other electrical appliances to avoid interference. If you want to use a wireless network, you must have monitoring equipment that can afford more than twice price. We recommend using a wired transfer for installation if not necessary.
Fifth: Site monitoring and network monitoring When you determine installation of monitoring system, you must consider whether you need network functions, that is, whether you need to monitor and control monitoring site at any time on Internet, you need to select network monitoring site functions. Avoid completing installation, but there is no network transfer function.
Basic knowledge of bothSecurity monitoring equipment - basic knowledge and installation of monitoring equipment
First step: decide whether to add a monitoring card to an existing computer or use built-in hard disk video recorder as a monitoring host;
When using a computer to install a monitoring card, total investment is relatively small, and it is suitable for places that are familiar with installing computers, have on-duty specialists, and have more functional requirements. The computer needs to be turned on 24 hours a day, use of built-in hard disk video recorder does not require professional knowledge, no need to be on duty, and operation is very simple, as convenient as using VCD;
Second step: Decide how many cameras you need and determine viewing range and image quality of each camera
First, determine number of surveillance cameras, and then determine surveillance range of camera lens according to specific situation: you need to specify distance from camera to surveillance point and area to be monitored. lens parameters according to following formula. As far as clarity is concerned, we think that a 420 TV line camera is enough.
Third step: do I need to have night vision
In dark places such as corridors, corridors, aisles, warehouses, etc., you may want to consider using cameras with infrared night vision features. Under condition of illumination with five fingers, infrared distance will be doubled. If site is a garden lawn, infrared effect is even worse.
Step Four: Use Wired or Wireless
In addition to high price, a wireless network eliminates hassle and unsightly wiring of a camera, but you need to pay attention to distance and obstacles. In principle, cement building materials will shorten wireless transmission distance, and metal materials will completely block wireless signal. The transmitter (camera side) and receiver (host side) should be far away from other electrical appliances to avoid interference. If you want to use a wireless network, you must be prepared to afford more than 2 times price. We recommend using wired transmission if not needed.
Step Five: Onsite and Network Monitoring
When you define a monitoring system, you need to consider whether you need network functions, that is, if you need to monitor and control monitoring site on Internet at any time, you need to select a host with a network function.
Recommendations for buying security monitoring equipment
1. Ease of system upgrade and maintenance. Due to large scale of system, system software and main hardware must have automatic update and maintenance functions; in addition, security monitoring system consists of several complexsystems, including network, storage, operating system, platform software, various external - end equipment, etc., therefore, it is required that each subsystem has work log records, including each module and main equipment of system.
2. Practicality. The system should take into account factors such as local environmental conditions, monitoring objects, monitoring methods, maintenance and investment scale, in order to meet needs of normal operation of monitoring system and management of social public safety.
3. Scalability. It is recommended to use a distributed system and a modular structure to meet needs of system expansion, function expansion, and software upgrade support. Users can expand or shrink system according to their needs at any time, reflecting sufficient flexibility.
4. Reliability and stability. The system should use mature technology and reliable equipment, as well as redundancy or back-up measures for key equipment. The system software has capability of service guarantee, high fault tolerance and system recovery capability to ensure that system runs stable for as long as possible, and if system fails, it can be repaired or restored in shortest possible time.
5. Control function and easy operation of system. Considering scale and complexity of network system, management software platform must have a good system architecture, and system core management and business management must be clearly separated to meet different application requirements. Due to large number of different management servers, storages and servers in system, network management function of system must be powerful, otherwise it will not be possible to perform daily maintenance; control and user interface provided by system should be clear, concise and friendly, and operation should be simple and flexible, easy to learn and use, easy to manage and maintain.
6. Value for money. Developers must intelligently set up system functions, properly perform system configuration and equipment selection, and ensure that overall system cost is low with high-quality key equipment, so that system has high economic performance.
7. Compatibility and standardization. Compatibility is key to interoperability between devices from many different manufacturers and different protocols. The system should be able to communicate and exchange data efficiently and provide maximum compatibility and interoperability between devices or systems. The higher degree of standardization and better openness of system, longer life cycle of system. Control protocolsI, transmission protocols, interface protocols, video and audio codecs, video and audio file formats, etc. must comply with relevant national standards or industry standards.
8. development and inheritance. It is not possible to completely abandon original analog system when building a monitoring system. The correct way is to include the original analog system as much as possible, provided that an all-digital system is planned. The most ideal system is a seamless connection between them to create a complete security monitoring system.
