CN203838888U

CN203838888U - Intelligent built-in central control module for all-in-one multimedia machine

Info

Publication number: CN203838888U
Application number: CN201420156827.7U
Authority: CN
Inventors: 刘琳
Original assignee: JI'AN YINGJIA ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: JI'AN YINGJIA ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2014-04-02
Filing date: 2014-04-02
Publication date: 2014-09-17
Anticipated expiration: 2024-04-02

Abstract

An intelligent built-in central control module for an all-in-one multimedia machine comprises a core controller, a VGA signal switching module, an AV signal switching module, a strong-current control module, a network communications drive, a switch module, a peripheral control interface, an infrared receiver module, a device control panel and an RFID reader, which are integrate on one board, wherein the core controller is respectively connected with and controls the VGA signal switching module, the AV signal switching module, the strong-current control module, the network communications drive, the switch module, the peripheral control interface, the infrared receiver module, the device control panel and the RFID reader. The intelligent built-in central control module greatly simplifies the structure and the connection of the all-in-one multimedia machine, and provides the all-in-one multimedia machine with the functions of a computer, a network central controller, a network switch, a user expansion interface and a DVD player as a conventional all-in-one multimedia machine. All devices are connected and fixed in the all-in-one multimedia machine through special wires and interfaces, and connection wires between devices are substantially reduced. Installation and debugging become simpler, and cost is lowered substantially. In addition, a remote infrared control function is added to make the all-in-one multimedia machine simpler and more convenient.

Description

In a kind of built-in intelligence of multimedia all-in-one machine, control module

Technical field

The utility model relates to electronic information technical field, is specifically related to control module in a kind of built-in intelligence of multimedia all-in-one machine.

Background technology

In traditional multimedia classroom construction, there is multiple equipment (conventionally having PC, middle control, DVD player, user's expansion interface, video presenter etc.) composition inside, dais, and these equipment have connected by external connection line.Middle control is responsible for miscellaneous equipment to carry out centralized control, and this has simplified the operating process of Multimedia Classrooms to a certain extent.But because device category is more, tie conductor complexity, has manufactured no small trouble to the installation and maintenance of multi-media classroom, simultaneously also for the stability of system has been beaten very heavy discount.Traditional middle control is mostly to control its power switch for the control of other equipment, generally directly to cut off its power supply, and the switching on and shutting down of computing machine can not simply realize with power switch, therefore need the independent switching computer of user, this has increased the complexity of user's operation to a great extent.In addition, middle control also will complete the signal of various device is switched, so that the signal that user needs oneself is played on output device, this need to use a large amount of various cables to connect these equipment, the use of these cables not only causes the significantly rising of cost, has also increased cost and the complexity of rigging up and debugging.

Utility model content

The deficiency existing for above-mentioned prior art, the purpose of this utility model is to provide in the built-in intelligence of practicality, quick and easy and economic a kind of multimedia all-in-one machine and controls module.

The technical solution of the utility model is: in a kind of built-in intelligence of multimedia all-in-one machine, control module, comprise and be integrated in a core controller on plate, VGA signal handover module, AV signal handover module, heavy-current control module, network service driver, switch module, peripheral hardware control interface, infrared receiver module, device control panel and RFID card reader, core controller connects respectively and controls VGA signal handover module, AV signal handover module, heavy-current control module, network service driver, switch module, peripheral hardware control interface, infrared receiver module, the work of device control panel and RFID card reader.

Described core controller comprises main MCU, reset IC, level conversion electric current and logical extension circuit, and reset IC, level shifting circuit and logical extension circuit are connected respectively to each I/O mouth of main MCU.

Described heavy-current control module comprises electric curtain interface and projector interface, electric curtain interface has two firewire contacts to connect respectively two relays, the Live line Zero line of projector interface connects a relay, three relays are connected to respectively three I/O mouths of main MCU by optocoupler, wherein projector interface is delay cut-off.

Described peripheral hardware control interface comprises the optocoupler that is connected to main MCU I/O and the level transferring chip that is connected to main MCU serial ports, switch control for device power supply (DPS) has main control MCU to send level signal, after changing by optocoupler, pilot relay moves to realize, to send corresponding command code by main control MCU by RS232 control protocol to realize for the switch control of projector, level transferring chip is responsible for logic level transition, and the Transistor-Transistor Logic level that main MCU is sent converts the level signal of standard compliant RS232 specification to.

Described infrared receiver module receives the signal that user sends over by telepilot, and this signal is inputed to core controller, and core controller is made command adapted thereto by this signal decoding and according to decoded command information.

The utility model has the advantages that: the utility model has been simplified structure and the annexation thereof of multimedia all-in-one machine greatly, and possessed the functions of the equipments such as the computing machine under traditional approach, network central control, the network switch, user's expansion interface, DVD player simultaneously, these equipment are all connected in the mode of dedicated line and interface in multimedia all-in-one machine inside and are fixing, greatly reduce the connecting line between device type and equipment, it is more simple that Installation and Debugging become, and cost has also reduced much; In addition also increased remote control infrared control function, multimedia all-in-one machine has been used more convenient simple.

Brief description of the drawings

Fig. 1 is the utility model one-piece construction schematic diagram.

Fig. 2 is the circuit diagram of core controller described in the utility model.

Fig. 3 is heavy-current control module diagram described in the utility model.

Fig. 4 is the schematic diagram of Peripheral Interface module described in the utility model.

Embodiment

Now by reference to the accompanying drawings, the utility model is further described.

As shown in Figure 1, in a kind of built-in intelligence of multimedia all-in-one machine, control module, comprise and be integrated in a core controller on plate, VGA signal handover module, AV signal handover module, heavy-current control module, network service driver, switch module, peripheral hardware control interface, infrared receiver module, device control panel and RFID card reader, core controller connects respectively and controls VGA signal handover module, AV signal handover module, heavy-current control module, network service driver, switch module, peripheral hardware control interface, infrared receiver module, the work of device control panel and RFID card reader.

As shown in Figure 2, described core controller comprises main MCU, reset IC, level conversion electric current and logical extension circuit, and reset IC, level shifting circuit and logical extension circuit are connected respectively to each I/O mouth of main MCU.

As shown in Figure 3, described heavy-current control module comprises electric curtain interface and projector interface, electric curtain interface has two firewire contacts to connect respectively two relays, the Live line Zero line of projector interface connects a relay, three relays are connected to respectively three I/O mouths of main MCU by optocoupler, wherein projector interface is delay cut-off.

As shown in Figure 4, described peripheral hardware control interface comprises the optocoupler that is connected to main MCU I/O and the level transferring chip that is connected to main MCU serial ports, switch control for device power supply (DPS) has main control MCU to send level signal, after changing by optocoupler, pilot relay moves to realize, to send corresponding command code by main control MCU by RS232 control protocol to realize for the switch control of projector, level transferring chip is responsible for logic level transition, and the Transistor-Transistor Logic level that main MCU is sent converts the level signal of standard compliant RS232 specification to.

Claims

1. in the built-in intelligence of a multimedia all-in-one machine, control module, comprise and be integrated in a core controller on plate, VGA signal handover module, AV signal handover module, heavy-current control module, network service driver, switch module, peripheral hardware control interface, infrared receiver module, device control panel and RFID card reader, core controller connects respectively and controls VGA signal handover module, AV signal handover module, heavy-current control module, network service driver, switch module, peripheral hardware control interface, infrared receiver module, the work of device control panel and RFID card reader,

Described core controller comprises main MCU, reset IC, level conversion electric current and logical extension circuit, and reset IC, level shifting circuit and logical extension circuit are connected respectively to each I/O mouth of main MCU;

Described heavy-current control module comprises electric curtain interface and projector interface, electric curtain interface has two firewire contacts to connect respectively two relays, the Live line Zero line of projector interface connects a relay, three relays are connected to respectively three I/O mouths of main MCU by optocoupler, wherein projector interface is delay cut-off;

Described peripheral hardware control interface comprises the optocoupler that is connected to main MCU I/O and the level transferring chip that is connected to main MCU serial ports;