CN208820960U - A kind of set-top box - Google Patents

Abstract

The utility model is suitable for digital communication technology improvement areas, provide a kind of set-top box, including shell and PCB control panel, PCB control panel is set in the housing, PCB control panel is fixed in shell by screw, PCB control panel is equipped with main control module, data communication module, indicating lamp module, expansion module, filter module, Voltage stabilizing module and power supply module, main control module connection communication module two-way communication, main control module output end connects indicating lamp module, main control module connects expansion module two-way communication, the input terminal of power supply module electric connection filter module, the input terminal of the output end connection Voltage stabilizing module of filter module, the main control module is electrically connected in the output end of Voltage stabilizing module, data communication module, indicating lamp module and expansion module.The service life for extending set-top box of effect, the operation is stable, structure is simple, has expanded function, more practical, reduces the production cost of set-top box.

Description

A kind of set-top box

Technical field

The utility model belongs to digital communication technology improvement areas more particularly to a kind of set-top box.

Background technique

Box on digital video switching box, commonly referred to as set-top box or machine is a connection television set and outside source Equipment.The digital signal of compression can be changed into television content by it, and be shown on a television set.Signal can come from wired Cable, satellite antenna, broadband network and terrestrial broadcasting.The figure that the received content of set-top box can be provided in addition to simulated television Except picture, sound, more it is that digital content, including electronic program guides, internet webpage, subtitle etc. can be received.It uses Family can watch digital television program on existing television set, and formula digitlization amusement, education and quotient can be interacted by network Industry activity.

Current DTV STB has become a kind of embedded device, has perfect real time operating system, provides Powerful CPU computing capability is used to coordinated control set-top box each section hardware facility, and provides easy-operating graphical user circle Face provides the user with the program description and background information that both pictures and texts are excellent such as the electronic program guides of enhanced-quality television.With number Universal and development, the top box of digital machine of TV tech have become the necessary equipment in many family parlors.But existing number electricity Simple program playing function can only be provided depending on set-top box, voice and video interactive function is can not achieve, is not able to satisfy consumer's Interactive demand.

A kind of access technology of the WLAN as the network terminal has access speed height, is routed the advantages that simple, more To be more widely used in home network.With the development of television digitization, set-top box has become in family life must can not Few electronic equipment.Wireless network is constructed using set-top box, the parlor deployment of home broadband is completed, it is multiple to be able to solve family's wiring Miscellaneous problem.

In use, often there is situations such as card machine caused by faulty operation, crash in existing set-top box, once there is this Kind situation can only restart manually, not smart enoughization, influence user's use.And existing set-top box is not smart machine, it cannot It needs to install third-party application program according to user, more extension functions can not be provided.Wherein, it also will appear voltage not There is AC influence, so that set-top box is very unstable at work in steady and direct current.

Utility model content

The purpose of this utility model is to provide a kind of set-top boxes, it is intended to solve above-mentioned technical problem.

The utility model is realized in this way a kind of set-top box, the set-top box includes shell and PCB control panel, described PCB control panel is disposed in the housing, and the PCB control panel is fixed in the shell by screw, on the PCB control panel Equipped with main control module, data communication module, indicating lamp module, expansion module, filter module, Voltage stabilizing module and power supply module, institute It states main control module and connects the communication module two-way communication, the main control module output end connects the indicating lamp module, described Main control module connects the expansion module two-way communication, and the power supply module is electrically connected the input terminal of the filter module, institute The output end for stating filter module connects the input terminal of the Voltage stabilizing module, and institute is electrically connected in the output end of the Voltage stabilizing module State main control module, data communication module, indicating lamp module and expansion module.

The further technical solution of the utility model is: the filter module includes resistance R1, resistance R2, resistance R3, electricity Hold C1, capacitor C2 and amplifier U1, one end of the resistance R1 be separately connected one end of the capacitor C2, resistance R2 one end and One end of resistance R3, the other end of the resistance R3 be separately connected the capacitor C1 one end and amplifier U1-input terminal, institute The output end for stating amplifier is separately connected the other end of the capacitor C1, the other end of capacitor R2 and output.

The further technical solution of the utility model is: the Voltage stabilizing module includes triode Q1, triode Q2, triode Q3, triode Q4, zener diode D2, resistance R6, zener diode D1, resistance R4, rheostat R5, resistance R7, resistance R9 and Resistance R8, the base stage of the triode Q4 are separately connected the anode of the zener diode D2 and one end of resistance R9, and described three The emitter of pole pipe Q4 connects one end of the resistance R8, and the collector of the triode Q4 is separately connected the triode Q3's The collector of base stage and triode Q1, the emitter of the triode Q3 connect the base stage of the triode Q2, the triode The collector of Q2 is separately connected the cathode of the collector of the triode Q3, the other end of resistance R8 and zener diode D2, institute The emitter for stating triode Q2 is separately connected one end of the resistance R7 and one end of resistance R4, the emitter of the triode Q1 It is separately connected the other end of the resistance R7 and the cathode of zener diode D1, the base stage of the triode Q1 connects the variable resistance The sliding end of device R5, one end of the rheostat R5 connect the other end of the resistance R4, and the other end of the rheostat R5 connects Connect one end of the resistance R6, the other end of the resistance R6 is separately connected the anode and resistance R9 of the zener diode D1 The other end.

The further technical solution of the utility model is: the data communication module includes the 4G communication list being set side by side Member, Wifi communication unit, RJ45 network communication interface, HDMI high-definition interface and optical fiber input converting unit.

The further technical solution of the utility model is: key switch is additionally provided on the PCB control panel, the key is opened The key button of pass passes through the shell, and described one end connects the output end of the power supply module, the key switch it is another End connects the input terminal of the filter module.

The further technical solution of the utility model is: the inserting terminal female that the power supply module uses.

The further technical solution of the utility model is: the main control module thinks Hi3798mv200 using sea.

The further technical solution of the utility model is: the expansion module is USB interface or RS232 interface or RS485 Interface.

The beneficial effects of the utility model are: using the above scheme, can and effectively extend set-top box uses the longevity Life, the operation is stable, structure is simple, has expanded function, more practical, reduces the production cost of set-top box, solid by screw It is more stable to determine PCB control panel, installation is simple, so that production efficiency improves.

Detailed description of the invention

Fig. 1 is the structural block diagram of the electric part of set-top box provided by the embodiment of the utility model.

Fig. 2 is the electrical schematic diagram of filter module provided by the embodiment of the utility model.

Fig. 3 is the electrical schematic diagram of Voltage stabilizing module provided by the embodiment of the utility model.

Specific embodiment

Fig. 1-3 shows set-top box provided by the utility model, and the set-top box includes shell and PCB control panel, described PCB control panel is disposed in the housing, and the PCB control panel is fixed in the shell by screw, on the PCB control panel Equipped with main control module, data communication module, indicating lamp module, expansion module, filter module, Voltage stabilizing module and power supply module, institute It states main control module and connects the communication module two-way communication, the main control module output end connects the indicating lamp module, described Main control module connects the expansion module two-way communication, and the power supply module is electrically connected the input terminal of the filter module, institute The output end for stating filter module connects the input terminal of the Voltage stabilizing module, and institute is electrically connected in the output end of the Voltage stabilizing module State main control module, data communication module, indicating lamp module and expansion module.

The filter module includes resistance R1, resistance R2, resistance R3, capacitor C1, capacitor C2 and amplifier U1, the resistance One end of R1 is separately connected one end of one end of the capacitor C2, one end of resistance R2 and resistance R3, and the resistance R3's is another End be separately connected the capacitor C1 one end and amplifier U1-input terminal, the output end of the amplifier is separately connected described The other end of capacitor C1, the other end of capacitor R2 and output.

The Voltage stabilizing module includes triode Q1, triode Q2, triode Q3, triode Q4, zener diode D2, resistance The base stage difference of R6, zener diode D1, resistance R4, rheostat R5, resistance R7, resistance R9 and resistance R8, the triode Q4 The anode of the zener diode D2 and one end of resistance R9 are connected, the emitter of the triode Q4 connects the resistance R8's One end, the collector of the triode Q4 are separately connected the base stage of the triode Q3 and the collector of triode Q1, and described three The emitter of pole pipe Q3 connects the base stage of the triode Q2, and the collector of the triode Q2 is separately connected the triode Q3 Collector, the other end of resistance R8 and the cathode of zener diode D2, the emitter of the triode Q2 is separately connected described One end of resistance R7 and one end of resistance R4, the emitter of the triode Q1 are separately connected the other end of the resistance R7 and steady The cathode of diode D1 is pressed, the base stage of the triode Q1 connects the sliding end of the rheostat R5, and the one of the rheostat R5 End connects the other end of the resistance R4, and the other end of the rheostat R5 connects one end of the resistance R6, the resistance R6 The other end be separately connected the anode of the zener diode D1 and the other end of resistance R9.

The data communication module includes that the 4G communication unit, Wifi communication unit, RJ45 network communication being set side by side connect Mouth, HDMI high-definition interface and optical fiber input converting unit.

Key switch is additionally provided on the PCB control panel, the key button of the key switch passes through the shell, described One end connects the output end of the power supply module, and the other end of the key switch connects the input terminal of the filter module.

The inserting terminal female that the power supply module uses.

The main control module thinks Hi3798mv200 using sea.

The expansion module is USB interface or RS232 interface or RS485 interface.

The multi-color LED that the indicating lamp module uses.

Set-top box receives data by data communication module and exports HDMI high-definition interface after main control module is converted, It is converted by HDMI high-definition interface connecting line to television set, set-top box can pass through cable network and wireless network connection to interconnection On the net, it may search for TV decoded program supply TV on the internet to use.

Master control control module supports Android operation system, is easily installed compatible third party software, main control module also connects It is connected to usb expansion module, indicating lamp module and remote control reception module, usb expansion is supported, to import data, indicating lamp module Display working condition, remote control reception module is for receiving remote signal, convenient for operation, when external power supply is connected, due to mould of powering Block is directly set-top box power supply, and redundant electrical power module connect user-friendly with main control module.

Filter module is arranged on PCB control panel effectively to be filtered out the exchange in power supply in DC voltage, so that Device in circuit obtains effective service life extension.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (6)

1. a kind of set-top box, it is characterised in that: the set-top box includes shell and PCB control panel, and the PCB control panel is set to institute It states in shell, the PCB control panel is fixed in the shell by screw, and the PCB control panel is equipped with main control module, number According to communication module, indicating lamp module, expansion module, filter module, Voltage stabilizing module and power supply module, the main control module connects institute State communication module two-way communication, the main control module output end connects the indicating lamp module, described in the main control module connection Expansion module two-way communication, the power supply module are electrically connected the input terminal of the filter module, the output of the filter module End connects the input terminal of the Voltage stabilizing module, and the main control module, data is electrically connected in the output end of the Voltage stabilizing module Communication module, indicating lamp module and expansion module.

2. set-top box according to claim 1, which is characterized in that the filter module includes resistance R1, resistance R2, resistance R3, capacitor C1, capacitor C2 and amplifier U1, one end of the resistance R1 are separately connected one end of the capacitor C2, resistance R2 One end and one end of resistance R3, the other end of the resistance R3 be separately connected the capacitor C1 one end and amplifier U1-it is defeated Enter end, the output end of the amplifier is separately connected the other end of the capacitor C1, the other end of capacitor R2 and output.

3. set-top box according to claim 2, which is characterized in that the Voltage stabilizing module include triode Q1, triode Q2, Triode Q3, triode Q4, zener diode D2, resistance R6, zener diode D1, resistance R4, rheostat R5, resistance R7, electricity R9 and resistance R8 is hindered, the base stage of the triode Q4 is separately connected the anode of the zener diode D2 and one end of resistance R9, The emitter of the triode Q4 connects one end of the resistance R8, and the collector of the triode Q4 is separately connected three pole The base stage of pipe Q3 and the collector of triode Q1, the emitter of the triode Q3 connects the base stage of the triode Q2, described The collector of triode Q2 is separately connected the yin of the collector of the triode Q3, the other end of resistance R8 and zener diode D2 Pole, the emitter of the triode Q2 are separately connected one end of the resistance R7 and one end of resistance R4, the triode Q1's Emitter is separately connected the other end of the resistance R7 and the cathode of zener diode D1, and the base stage of the triode Q1 connects institute The sliding end of rheostat R5 is stated, one end of the rheostat R5 connects the other end of the resistance R4, and the rheostat R5's is another One end connects one end of the resistance R6, and the other end of the resistance R6 is separately connected the anode and electricity of the zener diode D1 Hinder the other end of R9.

4. set-top box according to claim 1, which is characterized in that the data communication module includes that the 4G being set side by side leads to It interrogates unit, Wifi communication unit, RJ45 network communication interface, HDMI high-definition interface and optical fiber and inputs converting unit.

5. set-top box according to claim 1, which is characterized in that it is additionally provided with key switch on the PCB control panel, it is described The key button of key switch passes through the shell, and described one end connects the output end of the power supply module, the key switch The other end connect the input terminal of the filter module.

6. set-top box according to claim 1, which is characterized in that the inserting terminal female that the power supply module uses.