YDIT professional explains in detail the environmental control mode of the central control system

Source:YDIT 誉德 Release time:2019/9/17 20:50:55 Views:1329

 

The environmental control methods of the central control system (ultra-thin integrated lift, paperless office system, paperless conference system) mainly include two major control modes: strong electrical equipment and weak electrical equipment.
Environmental control
1. Strong electrical equipment control
High-powered devices or devices that are controlled by the high-power mode include lights, curtains, electric screens, or other electric lifting devices. The control mode of the power plant or device is controlled by the contacts that control the host control relay (RELAY) chassis. The relay contacts are only connected and disconnected, and the control mode is equivalent to the opening and closing of the buttons.
2. Weak electrical equipment control
The control modes of weak current devices are infrared control and serial port control.
(1) Infrared control (ultra-thin integrated lift, paperless office system, paperless conference system)
The device itself can be controlled by an infrared remote controller. The infrared remote controller is connected between the infrared port of the host computer and the controlled device, and the code of the remote controller is learned into the control host through a dedicated infrared code learner, that is, the control is performed. The host acts as a remote control that has learned the code. Equipment commonly used for control includes DVDs, video recorders, display stands, MD machines, AV amplifiers with remote control, electric curtains with remote control, projectors, plasma displays, TV receivers with remote control, etc. If the host interface is not enough, you can increase the infrared port expansion card for expansion.
(2) Serial port control (ultra-thin integrated lifter, paperless office system, paperless conference system)
Almost all devices with CPU units have RS-232 control, which is a common way to manage and debug devices. However, it must be noted that many manufacturers do not disclose their control code protocols, so be sure to pay attention when selecting this type of device, only the control protocol is disclosed, and the controlled device has RS-232/RS-422/RS-485 control mode. It can be controlled by the control system. Commonly used RS-232/RS-422/RS-485 controlled devices include audio and video matrix switchers, RGB matrix switchers, monitoring mainframes, multi-picture splitters, and some projectors. In configuration, each device is configured with one RS-232/RS-422/RS-485 interface. Usually, the control host will have several interfaces. If not enough, RS-232/RS-422/RS-485 can be configured. Module to add RS-232/RS-422/RS-485 interface (ultra-thin integrated lift, paperless office system, paperless conference system).