【 Weak current College 】 lighting control system

1. traditional DMX lighting control system
Traditional lighting control programme is a one-way transfer of DMX. First of all, because a DMX signal only inclusive 512 channel signals, so called DMX-512 signal, the General large-scale dimming system are dimming circuit exceeds 512 control loop, and some even have more than two thousand circuit, so we need more of the DMX signal in order to meet the dimming system requirements on the control of resources; computer lamp functionality more and more powerful, the requirements for control channel more and more, some computer lamp control channel has more than 30, a DMX signal at the control lamp for ten branch, a show often require dozens of supported PC lights, so you need more DMX signal.
Secondly, a concert, a gala lighting designer in addition to control the dimming light Silicon box, computer, but also to control such as changing color picker, smoke machine, booms, special effects lighting and so on, they will use DMX resource. Due to the DMX signal resource constraints, the control signal wiring already makes the control system is very complex.
For example, a large Studio, from the lighting control room output DMX signal lines can be divided into two branches, the first DMX signal supported routing dimming console directly joined to dimmer system, second DMX signal branch including computer, change the color and other intelligent DMX signal lamps, etc., from the control room layout to light tray or device layer of DMX splitter/amplifier, then from the allocator to the boom, boom, often of the same article may be equipped with several DMX signal device, typically each on DMX signal hanger wire 2 to 4, with performances on lighting control programmes increasingly, DMX lighting equipment increased, some varieties of places (such as CCTV) has adopted each boom section 5 — 6 DMX signal cable. Some sites even adopt each boom uses 8 DMX signal cable design.
Lighting designer in a light system design, theface is so complex and ever-changing system, to do face mask that meet a wide variety of performances for lighting equipment control requirement is very difficult.
But since most lighting equipment is DMX equipment, in the light of the lighting system, the DMX signal connectivity straightforward, DMX system remains the most practical and most widely used lighting system, is a small light system preferred.
Half light control system network
Half network lighting control system is a network technology in the lighting system of the first application, but strictly speaking, this is not a network dimming system, it is part of a DMX signal transmission to the network, this programme is by far the majority of foreign companies in the domestic competition, network wiring scheme. [fenye]
Unlike traditional DMX cabling scheme compared to half the Internet light control system from the control room to the device layer and dimmer than the distance between the room of signal transmission network transmission mode instead of the traditional DMX transmission mode. From the console output of TCP/IP network signal input network hub HUB (non-network console DMX signal DMX network encoder into TCP/IP network signal input), the output from the network hub HUB of TCP/IP network signals two slip, pp. — Article TCP/IP network signals transmitted from the control room of the slip road to the dimmer, where TCP/IP network signal passes through a network of DMX decoder into a standard DMX signal dimmer, second TCP/IP network signal branch including computer lamp, changing the color and other intelligent lighting control signal, in the light bridge or device on a layer converts DMX DMX signal decoder, and then through the DMX signal splitters and amplifiers to DMX signal is assigned to every piece of boom. Essentially this programme only solves part of the line network transmission, do not put all the lighting equipment (such as lights, dimmers, etc) as a network of terminal equipment, so it's not a complete network solution.
3. full network lighting control system
The biggest feature of the programme is from console to all lighting equipment, the use of TCP/IP network transmission of the signal cable from the control room output TCP/IP network signals two slip, pp. — Article TCP/IP network signals transmitted from the control room of the slip road to the dimmer, where TCP/IP network signal cable directly access network dimmer, it should be noted that, in the whole network of lighting system wiring scheme, network dimmer through network signal cable from the system of other lighting equipment, such as network dimming desk, file server, the central monitor, bi-directional exchange control information, these control information including: dimming control DMX signal, dimmer status information report Reporting, dimming backup, dimming curve setting, centrally controlled dimming command, etc. The second TCP/IP network signal branch including computer color changing lights, and other intelligent lighting control for bidirectional exchange of information, in the light bracket or device level through the network hub into multiple TCP/IP network signal, where traditional DMX signal splitters and amplifiers has been replaced by multi-channel network hubs, assigned to boom on multiple DMX signal cable is a network line replaced, TCP/IP network signal can be directly connected on the hanger with TCP/IP network signal interface network lighting equipment, as well as by network DMX DMX signal decoder into a PC to control lighting, color, DMX lighting equipment.
To sum up, the whole network of lighting control system for the actual realization of the lighting system of networked, are compatible with network controller, DMX controller and a network of lighting equipment, DMX lighting equipment, is today's most advanced lighting system. Full lighting control system in addition to the network can achieve lighting system console and the device completely real-time bi-directional communication, but also has a line structure than in the previous 2 programme greatly simplify and save cabling and maintenance costs of a huge advantage.
4. network DMX lighting control system solutions matrix
Network DMX lighting control system that the matrix is fully network lights controlSystem wiring scheme on the basis of a significant improvement. Network DMX lighting control programme is a matrix by a matrix encoder DMX network all different lighting console network signal and DMX signal renumber, use Network delivered directly to the network or through a network of lighting equipment DMX DMX signal decoder demodulation to control DMX lighting equipment. [fenye]
And fully networked lighting control wiring scheme, there are 2 benefits.
1 as a result of the hanging network dimmer, resulting in partial or total cancellation of dimmer control room, simply put the power and network cables in suspenders, greatly simplified wiring structure further.
2 using the latest network technology, the DMX matrix input to boom on multiple DMX signal and network signals into one output DMX signal cable or network signal output, that is to say both in the programme number of the used on the boom of DMX lights, just a 1 channel DMX output network — 512 decoders can solve the problem, truly the unchanging!
To sum up, there is a network of DMX lighting control systems, matrices, regardless of the lighting design how to add lights and lighting equipment, as long as the network DMX matrix encoder renumber, there is no need to consider the signal transmission and wiring, control network programme in DMX matrix system and economic advancement and fully networked lighting control wiring schemes.