Question 2: What are the weak current projects? Weak current engineering includes:
1, burglar alarm system
2. Public address system
3. Building visual intercom system
4, access control card system
5. Video conference system
6. Video monitoring system
7. Parking Management Department
8. Cable TV system
9. Smart home system
10, integrated wiring system
1 1, computer room construction system, etc.
Question 3: What narrow sense of building weak current mainly includes:
Television (CATV) includes telephone, network, automatic fire alarm and linkage control (FAS), building automation (BAS), video monitoring (CCTV), parking lot management (CPS), access control, public broadcasting and emergency broadcasting subsystem (PAS), and visual intercom.
Question 4: What systems are included in the weak current project? Weak current intelligent system generally includes:
1, integrated wiring system (involving the laying of voice and network lines in the building)
2. Security system (video monitoring, security alarm system, patrol system, access control, parking lot management and other subsystems)
3. Building automation system (also known as building control system and overhead equipment management system: water supply and drainage, air supply and exhaust, air conditioning, power distribution, etc. )
4. Office automation system (not available in most office buildings and residential buildings)
5. Background music system (sometimes with fire fighting system * * *, * Please note that fire fighting is an independent weak current system).
6. Communication system (voice exchange or private branch exchange, which Party A requires operators to provide for most projects).
7. Fire-fighting system (fire-fighting smoke exhaust, alarm, water spraying and other systems, and heptafluoropropane gas fire extinguishing may occur in the computer room project)
8.CATV system (CATV wiring system involves two-way transmission in the building, and satellite reception and front-end modulation may occur)
9. Conference system (some buildings will have large conference rooms, which need audio and video design)
10, large screen display system (mainly including LED screen, plasma splicing screen, DLP screen installation and control. )
* 1 1, computer local area network system (using the lines provided by the integrated wiring system to form a network system platform)
* 12, wireless intercom (mainly related to the underground part of the base station and the relay station and antenna settings in the cell).
* 13, three-meter cc system (mainly appearing in residential buildings, used for remote meter reading, and currently used in many office buildings)
* 14, building intercom system (visible and invisible, this system generally only appears in residential projects, less in office buildings) * 15, weak current piping system (including weak current pipes and bridges reserved and embedded).
* 16, Home Intelligent System (mainly in residential buildings)
* 17, property management system (used for property management of office buildings or residential areas, generally integrated into office automation systems)
* 18, Hotel Management System (only in hotel projects)
* 19, video-on-demand system (generally as an optional part of hotel projects, but also in individual communities and parks)
Question 5: What are the weak current projects? You can also find specific decoration information on some large decoration websites. The weak current processing object is mainly information, that is, information transmission and control. Weak current engineering includes TV engineering, communication engineering, fire engineering, security engineering, video engineering, etc. And the integrated wiring project serving the above projects. Intelligent weak current projects: automatic control system of building equipment (water supply and drainage, power distribution, heating and ventilation), automatic fire alarm and fire control system, safety monitoring system (access control system, parking lot control system), satellite TV and broadcasting system, intelligent system of residential quarters, etc.
Question 6: What are the weak current systems? There are mainly two kinds of weak current, one is low-voltage electric energy such as safe voltage grade and control voltage stipulated by the state, which is divided into AC and DC, with AC below 36V and DC below 24V, such as 24V DC control power supply or emergency lighting standby power supply. The other is information sources including sound, images and data, such as telephone, television and computer information. People used to call weak current technology weak current technology. It can be seen that the basic meaning of weak current technology in intelligent buildings is still weak current technology in the original sense. However, with the rapid development of modern weak current technology, weak current technology is more and more widely used in intelligent buildings. Such as intelligent fire control system, monitoring system, computer network, building automation, intelligent broadcasting, etc. The application degree of weak current technology determines the intelligence degree of intelligent building. Weak current system engineering refers to the second application. Mainly includes: 1, TV signal engineering, such as TV monitoring system and cable TV. 2. Communication engineering, such as telephone. 3, intelligent fire engineering. 4. Sound reinforcement and sound engineering, such as community background music broadcasting and building background music. 5, integrated wiring engineering, mainly used for computer networks. With the rapid development of computer technology, the rapid and powerful functions of software and hardware, and the perfect combination of various weak current system engineering and computer technology, the previous classification is no longer as clear as before. The integration of various projects is system integration.
Question 7: What are the contents of weak current in interior decoration? What weak current materials are there in home improvement?
1, telephone line
Telephone lines are used to make phone calls. They are made of copper cores. The number of cores determines the number of telephone extensions that can be connected. Common specifications are two cores and four cores. Generally, two cores are enough for home decoration, but if you still need to connect a fax machine or a computer to dial up the Internet, you'd better choose a four-core telephone line. Telephone lines can be replaced by network cables, and now some home phones are connected by network cables.
2. TV line
At present, there are two kinds of cables used to transmit TV signals: cable TV coaxial cable and digital TV coaxial cable. Cable TV coaxial cable adopts double shielding, which will cause certain loss when it is used to transmit digital TV signals. The digital TV cable adopts four shielded cables, which can transmit both digital TV signals and cable TV signals. In the aspect of anti-interference, the four-shielded cable is better than the double-shielded cable, so you can compare them by breaking them with a utility knife.
3. Network cable
There are three kinds of network cables: twisted pair, coaxial cable and optical cable. It is a data transmission line composed of several pairs of wires. It is characterized by its low price, so it is widely used, such as our common telephone line. It is used to connect RJ45 crystal head. There are two kinds of them: STP and UTP, and UTP is commonly used.
4. Audio and video cables
The lines used to realize music and video transmission mainly include audio lines, audio lines and audio and video lines. Audio cable, commonly known as speaker cable, is mainly used to connect the power amplifier and speaker in the home theater in the living room; The audio cable is used to connect the output signals of the laser CD player and DVD in the living room home theater to the signal input end of the background music power amplifier; Audio and video cables are mainly used in home audio-visual systems.
Question 8: What is a weak current system? What does the weak current system include? According to the intensity of power transmission, power applications can be divided into two categories: strong electricity and weak electricity. Building and building electricity generally refers to high-voltage alternating current above 220 V and 50 Hz. It mainly provides people with electric energy and converts it into other energy sources, such as air conditioning, lighting, electricity and so on. There are two main types of weak electricity in intelligent buildings. One is low-voltage electric energy such as safe voltage grade and control voltage specified by the state, which is divided into AC and DC, with AC below 36V and DC below 24V, such as 24V DC control power supply or emergency lighting standby power supply. The other is information sources including sound, images and data, such as telephone, television and computer information. People used to call weak current technology weak current technology. It can be seen that the basic meaning of weak current technology in intelligent buildings is still weak current technology in the original sense. However, with the rapid development of modern weak current technology, weak current technology is more and more widely used in intelligent buildings. Such as intelligent fire control system, monitoring system, computer network, building automation, intelligent broadcasting, etc. The application degree of weak current technology determines the intelligence degree of intelligent building.
Generally speaking, weak current system engineering refers to the second application. Mainly includes: 1, TV signal engineering, such as TV monitoring system and cable TV. 2. Communication engineering, such as telephone. 3, intelligent fire engineering. 4. Sound reinforcement and sound engineering, such as community background music broadcasting and building background music. 5, integrated wiring engineering, mainly used for computer networks. With the rapid development of computer technology, the rapid and powerful functions of software and hardware, and the perfect combination of various weak current system engineering and computer technology, the previous classification is no longer as clear as before. The integration of various projects is system integration.
Question 9: What strong electricity does weak current include, including system distribution lines, cables, cabinets, lighting appliances, switches, sockets, lightning protection and grounding, system debugging, lighting and socket piping. Power pipeline wiring
Weak current refers to the security monitoring, integrated wiring and alarm system within 32V.