Nowadays, the school's media teaching methods are also growing at an unprecedented speed, and more and more multimedia audio-visual education equipment (such as projectors, projection screens, computers, laptops, exhibition stands, DVD players, sound systems, video recorders, etc.) serve the front line of teaching. The interactive use of a variety of audio-visual equipment has also brought trouble to teachers to a certain extent. The effective management of the operation of equipment in multiple classrooms has resulted in a multimedia education central control system.

一、What is education control?

Geffen distributed multimedia central control system is a comprehensive multi-function distributed multimedia central control integrated host, integrated with power supply, high-definition/standard definition matrix, digital power amplifier, 2.4G wireless microphone, network switching and other modules, integrated multimedia central control function, can control the multimedia equipment of the classroom, equipped with a powerful service software management function, through the network to achieve comprehensive management of all classrooms, including setting different classrooms to open and close the class equipment, projector equipment use time information, etc. Geffen GF-ECC education central control is designed for full-featured multimedia classrooms, with network video on demand, intelligent IoT control functions, network IP broadcasting functions (to meet the English listening requirements of the college entrance examination), centralized control functions of teaching equipment, broadcasting and information release, etc., integrated video channel switching, centralized control of projectors/screens, wireless microphones, IC card control and other functions.

二、Classification of central control in education

1. Simple education central control system: limited access business capabilities; At present, the simple central control in the market is generally separated from strong and weak electricity, and the host is relatively small, with less system matrix and fewer corresponding functions. Scope of use: general education, small classrooms, mainly where there are fewer control equipment;

2. Integrated education central control system: the access equipment interface and business management and operation and maintenance are highly integrated, and the central control system for multimedia teaching is simplified, but the interface expansion is limited; Scope of use: Generally commonly used in multimedia classrooms in universities and middle schools, but also used in medium-sized venues, can control more equipment;

3. Programmable central control system: the business access equipment can be configured to provide the ability to flexibly manage various devices, which can generally meet the special requirements of the environment or large conference room, and there are many control devices, which can provide a program writing interface;

4. Management-free central control system: This is based on the traditional central control to add an intelligent management-free function, which solves the school's management problem of multimedia classrooms, for example, if the teacher forgets to turn off the multimedia equipment after class, then there will be a waste of equipment resources that the school does not want to see, and the traditional model is to require the school's audio-visual administrator to inspect each classroom. The management-free central control can detect whether the teacher is still in class or out of class, and automatically turn off multimedia equipment (computers, projectors, audio, amplifiers and other multimedia equipment) after the teacher leaves the classroom

三、The difference between education central control and ordinary central control

Ordinary central control generally refers to the switch of control equipment through the transmission of signal instructions, adjustment or movement, the general central control is only one signal interface, and the education central control is a product customized for multimedia classrooms, which includes audio and video switching, projector lifting and other functions, intelligent IoT, teaching interaction, etc., Geffen technology GF-EC education central control in addition to audio and video switching, projector switch, there are also control of the projection screen lifting, IP network voice broadcasting, video broadcasting, wired and wireless microphones, mathematical amplification, operation and maintenance management, cloud recording and broadcasting and other characteristics and practical functions, can meet all kinds of multimedia classrooms to make teachers simpler。

四、The central control system of Geffen education is generally composed of four parts:
1. User interface
2. Central control host
3. Controlled equipment
4. Functional module

五、The components of the central control system of Geffen education:
Central control host: plays the role of receiving the control signal of the touch screen, interpreting and executing.
Touch screen: direct preview, video, easy and fast control of the whole process.
Recessed wall panels: Usually installed at the doorway for easy access and access.
Volume control module: used to control audio equipment.
Lighting controller: used to control and adjust lighting equipment.
Strong current relay module: used to control electric hangers, screens, equipment power supplies, fluorescent lamps and other equipment.
IR Transmitter Stick: Used to control IR equipment such as DVD/VCR/physical booth.
External power supply: used to power all devices.