CN205281784U

CN205281784U - CDR terminal and system based on infrared remote control

Info

Publication number: CN205281784U
Application number: CN201521033794.8U
Authority: CN
Inventors: 肖不平
Original assignee: Beijing Haier IC Design Co Ltd
Current assignee: Beijing Haier IC Design Co Ltd
Priority date: 2015-12-14
Filing date: 2015-12-14
Publication date: 2016-06-01
Anticipated expiration: 2025-12-14

Abstract

The utility model relates to a CDR terminal and system based on infrared remote control. The terminal includes: infrared receiver module, it is used for receiving infrared remote signal and converts it into the signal of telecommunication, load the remote control command to the CDR terminal among this infrared remote signal, demodulation module, its with infrared receiver module is connected, is used for receiving the signal of telecommunication carries out the demodulation to it, decoder module, its with demodulation module is connected for the signal of telecommunication behind the receive demodulate and to its decode, the signal of telecommunication after decoding are used for carrying out the control operation to the CDR terminal. The system CDR terminal, infrared remote control, infrared remote control includes: the button module, code modulation module, infrared transmission module. The utility model discloses a control the terminal that has CDR and receive the function with infrared remote control, in certain condition below user action, strengthened user experience.

Description

A kind of CDR terminal based on infrared remote control and system

Technical field

The utility model relates to digit broadcasting system, particularly relates to a kind of CDR terminal based on infrared remote control and system.

Background technology

Infrared remote control utilizes wavelength to be that the near infrared ray between 0.76��1.5 ��m carrys out transfer control signal, and infrared remote control system generally divides to be launched and receives two parts.

Remote control application specific integrated circuit (employing AT89S52 micro-chip) is the core of launching system, and its inside is made up of oscillatory circuit, timing circuit, sweep signal generator, key input encoder, instruction decoder, subscriber number transmodulator, digital modulation circuit and buffer amplifier etc. It can produce key mapping scanning pulse signal, and the key code of button can be translated, the telecommand (remote control code pulse) of certain key mapping is obtained again through telecommand encoder, carrying out pulse amplitude modulation by the carrier wave of 38KHZ, the modulation signal excitation infrared diode being loaded with telecommand sends infrared remote-controlled signal.

In infrared receptor, electrooptical device converts the infrared light instruction signal received to corresponding electrical signal. Now, signal is very faint and disturbs big especially, in order to realize being detected accurately by signal and change, except high performance infrared electro switching device, also should reasonably select the circuit form that also design performance is good. The most frequently used electrooptical device is photorectifier, and the photosurface tied as photorectifier PN is subject to after illumination penetrates, and the semiconductor material of PN knot absorbs luminous energy, and luminous energy is converted to electric energy. When being added with reverse voltage on photorectifier, the change with incident illumination intensity is changed by the reversible circulation in diode, and the irradiation intensity of light is more big, and its reversible circulation is more big.

Practical novel content

The purpose of this utility model is to provide a kind of the CDR terminal based on infrared remote control and the system that can overcome above-mentioned defect.

In first aspect, the utility model provides a kind of CDR terminal based on infrared remote control, comprising: infrared receiving module, and it is for receiving infrared remote-controlled signal and is converted into electrical signal, is loaded with the telecommand to CDR terminal in this infrared remote-controlled signal; Demodulation module, it is connected with described infrared receiving module, for receiving described electrical signal and it is carried out demodulation; Decoder module, it is connected with described demodulation module, for the electrical signal after receiving demodulation and it is decoded, decoded electrical signal is for carrying out control operation to CDR terminal.

Preferably, described infrared receiving module is photorectifier or phototriode pipe.

Preferably, described photorectifier is PIN photodiode.

Preferably, described CDR terminal also comprises: liquid crystal display, for the response information to CDR terminal in the operation of user's display and control.

In second aspect, the utility model provides a kind of CDR system based on infrared remote control, comprise CDR terminal and the IR remote controller of the utility model first aspect, wherein, described IR remote controller comprises: key-press module, it is for accepting the key-press input of user, produces the telecommand to CDR terminal; Code modulation module, it is connected with described key-press module, for receiving described telecommand and it is carried out coded modulation; Infrared emission module, it is connected with described code modulation module, for producing infrared signal under the excitation of the electrical signal after coded modulation and be transmitted into described infrared receiving module.

Preferably, described key-press module comprises one or more physical button.

Preferably, described infrared emission module is infraluminescence diode.

The utility model, by the terminal with CDR receiving function being controlled with infrared remote control, is convenient for users to operate in any case, enhances Consumer's Experience.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of a kind of CDR system based on infrared remote control according to the utility model embodiment.

Embodiment

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

As shown in Figure 1, this system comprises CDR terminal and IR remote controller, wherein, CDR terminal comprises the infrared receiving module, demodulation module and the decoder module that are linked in sequence, and IR remote controller comprises the key-press module that is linked in sequence, code modulation module is connected with infrared emission module.

User inputs telecommand by the one or more physical button on key-press module to IR remote controller, includes but not limited to startup/closedown/dormancy CDR terminal, input frequency, channel searching etc.

IR remote controller scans this telecommand and is sent into code modulation module, and it is carried out coded modulation by code modulation module, and the electrical signal being loaded with telecommand after coded modulation is sent to infrared emission module.

Infrared emission module receives this electrical signal, produces infrared signal under the excitation of this electrical signal, and the infrared receiving module being transmitted in CDR terminal. Preferably, infrared emission module adopts infraluminescence diode.

Infrared receiving module receives this infrared signal, after it carries out the process such as opto-electronic conversion, amplification, shaping, the electrical signal after process is sent to demodulation module. Infrared receiving module is generally photorectifier or phototriode pipe, it is preferable that can adopt PIN photodiode.

The electrical signal received is carried out rectification by demodulation module, and the electrical signal after rectification is sent to decoder module.

Electrical signal after rectification is decoded by decoder module, and decoded electrical signal is used for CDR terminal and operates accordingly.

Can also there is display screen according in CDR terminal of the present utility model, show user interface for user. Such as, this user interface can present the response information etc. of CDR terminal in remote control process, and this display screen can be such as liquid crystal display LCD.

Professional should recognize further, the unit of each example described in conjunction with embodiment disclosed herein and algorithm steps, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeableness of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function. These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme. Each specifically can should be used for using different methods to realize described function by professional and technical personnel, but this kind realizes not think and exceeding scope of the present utility model.

The software module that the method described in conjunction with embodiment disclosed herein or the step of algorithm can perform with hardware, treater, or the combination of the two implements. Software module can be placed in the storage media of other form any known in random access memory (RAM), internal memory, read-only storage (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.

Above-described embodiment, has further described the purpose of this utility model, technical scheme and useful effect. Institute is it is understood that the foregoing is only embodiment of the present utility model, and is not used in and limits protection domain of the present utility model. All within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims

1., based on a CDR terminal for infrared remote control, comprising:

Infrared receiving module, it is for receiving infrared remote-controlled signal and is converted into electrical signal, is loaded with the telecommand to CDR terminal in this infrared remote-controlled signal;

Demodulation module, it is connected with described infrared receiving module, for receiving described electrical signal and it is carried out demodulation;

Decoder module, it is connected with described demodulation module, for the electrical signal after receiving demodulation and it is decoded, decoded electrical signal is for carrying out control operation to CDR terminal.

2. CDR terminal according to claim 1, wherein, described infrared receiving module is photorectifier or phototriode pipe.

3. CDR terminal according to claim 2, wherein, described photorectifier is PIN photodiode.

4. CDR terminal according to claim 1, also comprises:

Liquid crystal display, for the response information to CDR terminal in the operation of user's display and control.

5. based on a CDR system for infrared remote control, comprising the CDR terminal as described in one of claim 1-4 and IR remote controller, wherein, described IR remote controller comprises:

Key-press module, it is for accepting the key-press input of user, produces the telecommand to CDR terminal;

Code modulation module, it is connected with described key-press module, for receiving described telecommand and it is carried out coded modulation;

Infrared emission module, it is connected with described code modulation module, for producing infrared signal under the excitation of the electrical signal after coded modulation and be transmitted into described infrared receiving module.

6. CDR system according to claim 5, wherein, described key-press module comprises one or more physical button.

7. CDR system according to claim 5, wherein, described infrared emission module is infraluminescence diode.