CN101694339A - Intelligent refrigerator with digital television and operation mode of same - Google Patents

Abstract

The invention discloses an intelligent refrigerator with a digital television and an operation mode of the intelligent refrigerator with the digital television. The intelligent refrigerator with the digital television comprises a central processing unit (101), and a storage module (103), a peripheral interface module (104), a human-computer interaction module (105), a power management module (106) and a refrigerator control module (107) all connected with the central processing unit (101). The characteristic is that the intelligent refrigerator also comprises a CMMB module (102) that is connected with the central processing unit (101). The operation mode comprises searching for local frequency points, decoding and analyzing received signals into audio and video data streams, and outputting the audio and video data. The invention realizes that users can watch preferred television programs and video programs while doing housework and cooking.

Description

A kind of intelligent refrigerator and method of work that has DTV

Technical field

The invention belongs to the refrigerator technical field, be specifically related to a kind of intelligent refrigerator and method of work with DTV.

Background technology

China Mobile's DMB (CMMB, China Mobile Multimedia Broadcasting) is the digital TV ground transmission standard that China broadcasting and TV system releases.CMMB is mainly towards the small screen, small size hand-portable terminal equipment, and its end product kind mainly comprises PMP, PDA, independent receivers, USB TV rod, mobile phone, GPS etc., and digital television program, integrated information and urgent broadcast service are provided.The core of CMMB standard be via satellite with the terrestrial wireless broadcast mode, receive data for terminal device, watch broadcast TV program and process information service business whenever and wherever possible.

The CMMB transmission technology adopts mobile TV acceptance criteria STiMi (the Satellite-TerrestrialInteractive Multi-service Infrastructure of China's independent research, the interactive many service infrastructure in satellite and ground), this standard is applicable to that 30MHz is to the interior broadcasting service frequency of 3000MHz frequency range, launch the broadcast system of multi-media signals such as TV, broadcasting, data message via satellite with terrestrial wireless, can realize whole nation roaming.

Along with popularizing of intelligent appliance, refrigerator combines with DTV, when culinary art, cleaning tableware, can watch that news, the TV programme of liking, information become the development trend of following refrigerator, make the design hommization more of refrigerator, improve the competitiveness of product in market, but also do not had the appearance of this series products on the present market.

Summary of the invention

The purpose of this invention is to provide a kind of intelligent refrigerator and method of work thereof with the CMMB DTV, can when culinary art, cleaning tableware, watch informations such as news, the TV programme of liking, stock, weather, do not miss the TV programme that any one is liked oneself, do not omit any Useful Information.Simultaneously, by watching cook-in, also can cook out good to eat cuisines for the household synchronously.

A kind of intelligent refrigerator that has DTV, comprise central controller 101, and the memory module 103 that is connected with central controller 101 respectively, peripheral interface module 104 human-computer interaction modules 105, power management module 106, refrigerator control module 107, it is characterized in that, also comprise CMMB module 102, described CMMB module 102 is connected with described central controller 101;

Described CMMB module 102 will receive mobile digital multi-media broadcast signal under the control of central controller 101, and mobile digital multi-media broadcast signal is converted to the CMMB audio and video data streams.

Described CMMB module 102 comprises antenna, CMMB Receiver Module, CMMB baseband processing module, and described CMMB Receiver Module is connected with the CMMB baseband processing module with antenna respectively, and described CMMB baseband processing module is connected with central controller 101.

Described memory module 103 comprises internal memory RAM and NAND FLASH RAM.

Described NAND FLASH RAM is divided into four storage areas:

First storage area, storage embedded software and system version data;

Second storage area, the storage recipe data;

The 3rd storage area, storage food information;

The 4th storage area, the storage audio, video data.

A kind of method of work that has the intelligent refrigerator of DTV comprises:

Step S1 carries out regional frequency search;

Step S2 carries out demodulation and resolves to audio and video data streams the CMMB signal that receives;

Step S3 is by output equipment output audio and video data streams.

Wherein, step S2 specifically also comprises:

Step S21 carries out demodulation to the CMMB signal that receives, and obtains a plurality of multiplexed frames;

Step S22 resolves the control information table that multiplexed frame obtains the CMMB DTV;

Step S23, the user selects program, carries out digital TV data and receives;

Step S24 resolves the audio and video data streams in the multiplexed frame, and to audio and video data streams difference buffer memory.

Description of drawings

Fig. 1 is a theory diagram of the present invention;

Fig. 2 is the theory diagram of CMMMB module of the present invention;

Fig. 3 is a method of work flow chart of the present invention.

The specific embodiment

Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.

Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.

As shown in Figure 1, a kind of intelligent refrigerator that has DTV disclosed by the invention, comprise central controller 101, and the memory module 103 that is connected with central controller 101 respectively, peripheral interface module 104 human-computer interaction modules 105, power management module 106, refrigerator control module 107, it is characterized in that, also comprise CMMB module 102, described CMMB module 102 is connected with described central controller 101.

Central control module 101 is refrigerator host CPUs, adopts Changhong Apollo multimedia process chip in the present embodiment.Built-in ARM of Changhong Apollo multimedia process chip and DSP microprocessor.Central control module 101 is used for scheduling, decoding and the peripheral equipment management etc. of control instruction transmission, data flow.Wherein control instruction is meant behind the response software program dependent instruction in the instruction set is sent, and the ARM instruction set mainly comprises the associated instruction set of memory reference instruction, data move, data processing instructions, branch instruction, coprocessor instruction, status register transfer instruction and exception handling instruction etc. and CMMB signal receiving module; The scheduling of data flow mainly be to audio, video data reception, write, read scheduling; Decoding is that the audio, video data bag is decoded into image and sound; Peripheral hardware comprises equipment such as USB, SD, LCD, touch-screen, button (button), MIC, loudspeaker.

CMMB module 102, the mobile digital multi-media broadcast signal that is used for receiving is converted to the CMMB audio and video data streams; CMMB module 102 comprises antenna, CMMB Receiver Module, CMMB baseband processing module, described CMMB Receiver Module, be used to receive mobile digital multi-media broadcast signal, to receiving to such an extent that mobile digital multi-media broadcast signal carries out frequency down-converts, mould/the number conversion of signal, and convert the signal after the conversion to digital same-phase phase shift IQ signal, then digital same-phase phase shift IQ signal is sent to the CMMB baseband processing module; Described CMMB baseband processing module is used to receive described IQ signal, and the IQ signal that receives is carried out obtaining the CMMB audio and video data streams after the demodulation; Data flow is passed through data/address bus under the control of central controller 101, be placed in the buffering area of internal memory RAM of memory module 103, decode respectively then, audio frequency is decoded by the ARM microprocessor in the central controller 101, video is delivered to human-computer interaction module 105 after decoding is finished and is play by the decoding of the DSP in the central controller 101.

Human-computer interaction module 105, the input operation processing and the output that realize the user show, the user can realize the operation of touch-screen, button, MIC by human-computer interaction module 105, the program of control figure TV is play, volume is regulated, audio frequency and video are play and the setting of refrigerator parameter, the mutual message just recorded between the kinsfolk; Human-computer interaction module 105 comprises equipment such as LCD display and/or touch-screen, button, MIC.

Memory module 103 is used for writing, read and storing of data; Memory module 103 comprises internal memory RAM and NAND FLASHRAM; Internal memory RAM is used for writing of data buffer memory and reads processing, and NAND FLASH RAM realizes the storage of audio, video data, food information, recipe storage, embedded software storage etc.Described NAND FLASH RAM memory is divided into four storage areas, first's storage embedded software and system version data etc., second portion storage recipe data; Third part storage food information; The 4th part storage audio, video data.First can instruct in manufacturer according to the software of manufacturer's issue and upgrade after sale to the doorstep; Second and third, four parts all can upgrade voluntarily according to user preferences.

Peripheral interface module 104 is used for the connection of ancillary equipment, sticks into the renewal of line number word TV CAS deciphering or data such as common SD card menu, audio frequency and video by the CA that patches in the peripheral SD/MMC interface; Peripheral interface module 104 comprises common interfaces such as USB, SD, network, bluetooth, makes the user to upgrade data such as menu, audio frequency and video by multiple peripheral hardware, satisfies the demand that the user changes stored information according to the personal like.Carry out in the digital television CA S decrypting process, after central control module 101 receives the CMMB program stream of encryption, be sent in the CA kilocalorie that patches in the MircoSD deck by public SD/MMC interface.CA kilocalorie descrambling from EMM and ECM goes out program key, and is clear stream with program key with the deciphering of the code stream of scrambling, passes central control module 101 back and reads and play; Or receive the CMMB program stream of encryption at central control module 101 after, be sent in the CA lesser calorie that patches in the MircoSD deck by public SD/MMC interface.CA lesser calorie descrambling from EMM and ECM goes out program key, and sends back in this machine of reception, receives this machine and is clear stream and plays with the code stream deciphering of this program key with scrambling.

Refrigerator control module 107 is used to realize the control of refrigerator cold-storage and cryogenic temperature, is controlled by serial communication by central controller module when the user resets temperature, realizes digitlization design temperature and real time temperature Presentation Function.

Power management module 105 is made of power supply AC/DC change-over circuit, realize with the 220V alternating current be converted into the required 5V of system, direct currents such as 3.3V, 1.8V use for system.

The method of work that the present invention also provides a kind of CMMB DTV to watch, the mobile digital multi-media broadcast signal that receives is converted to CMMB standard pronunciation video logarithmic data stream, described audio and video data streams is passed through SPI or USB interface, finish the decoding of audio, video data by the control of central controller, finally output to LCD display and show.

Its method of work comprises the steps:

1, DTV carries out regional frequency search; Carry out regional frequency search by central controller module 101 control CMMB modules;

2, the CMMB module is carried out demodulation to the CMMB signal that receives, and obtains a plurality of multiplexed frames (multiplexed frame is the packet of CMMB DTV);

3, central controller module 101 is resolved described multiplexed frame by software program and is obtained all kinds of control information tables of CMMB DTV, comprise the basic description list of network information table NIT, ESG, continue period service duplexing configuration list CMCT, continue service allocation list CSCT, short-period service duplexing configuration list SMCT, short time service allocation table SSCT etc., and on the touch-screen of interactive module 105, present program ESG information for the user by software program;

4, the user selects program by touch-screen/button of interactive module 105, and central controller module 101 sends dependent instruction according to selected program number and carries out corresponding time slot selection to CMMB signal reception module 102, carries out the respective digital TV data and receives;

5, the player of software program is resolved the timestamp and the relevant information of video data stream and audio data stream in the corresponding time slot multiplexed sub frame, by central controller module 101 described video data stream and audio data stream is sent into video data buffer and audio data buffer in the memory module 103 respectively;

6, video data buffer in the memory module 103 and audio data buffer are sent into described video data stream and audio data stream respectively the Video Decoder and the audio decoder of central controller module 101 by the mode of first in first out (FIFO); Software program carries out synchronous decoding control according to timestamp, at last by the LCD in the interactive module 105 and loudspeaker difference output video and audio frequency;

7, the user can finish program by interactive module and change controls such as platform, end number television-viewing.

Simultaneously, the CMMB DTV also has data service, emergency broadcasting service, can use for the user for the user transmits various data messages (as stock, Weather information etc.).Urgent broadcast can be announced the business of emergency rapidly to the public, when accidents such as generation natural calamity, accident disaster, public health and social safety, cause or may cause great casualties, property loss, environmental destruction and serious social danger, when endangering public security, urgent broadcast provides a kind of mode of announcing efficiently rapidly.

Receive after (CA encryptions) implement in condition, can by peripheral interface module insertion SD card of the present invention or before dispatching from the factory built-in CA SMD decryption chip watch the CMMB encoded channel.

By the operation of software, intelligent refrigerator can realize also that each refrigeration, the visualization digital temperature control of refrigerating chamber, temperature show in real time, the demonstration of literal picture and the audio frequency and video playing function of menu inquiry, vegetable Combination Design, food materials counting statistics, vegetable preparation method.

The present invention has good effect, the intelligent refrigerator that band CMMB DTV is watched can make the user not miss the TV programme that any one s/he is liked in the cooking, when cleaning tableware, can make tasty food synchronously according to cooking program, also can customize the various information business according to the personal preference, at any time, in real time referring to stock information etc., have a good application prospect, contain great demand.

The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.

Claims (6)

1. intelligent refrigerator that has DTV, comprise central controller (101), and the memory module (103) that is connected with central controller (101) respectively, peripheral interface module (104) human-computer interaction module (105), power management module (106), refrigerator control module (107), it is characterized in that, also comprise CMMB module (102), described CMMB module (102) is connected with described central controller (101);

Described CMMB module (102) will receive mobile digital multi-media broadcast signal under the control of central controller (101), and mobile digital multi-media broadcast signal is converted to the CMMB audio and video data streams.

2. intelligent refrigerator according to claim 1, it is characterized in that, described CMMB module (102) comprises antenna, CMMB Receiver Module, CMMB baseband processing module, described CMMB Receiver Module is connected with the CMMB baseband processing module with antenna respectively, and described CMMB baseband processing module is connected with central controller (101).

3. intelligent refrigerator according to claim 1 is characterized in that, described memory module (103) comprises internal memory RAM and NAND FLASH RAM.

4. intelligent refrigerator according to claim 3 is characterized in that, described NAND FLASHRAM is divided into four storage areas, wherein

First storage area, storage embedded software and system version data;

Second storage area, the storage recipe data;

The 3rd storage area, storage food information;

The 4th storage area, the storage audio, video data.

5. a method of work that has the intelligent refrigerator of DTV is characterized in that, comprises

Step S1 carries out regional frequency search;

Step S2 carries out demodulation and resolves to audio and video data streams the CMMB signal that receives;

Step S3 is by output equipment output audio and video data streams.

6. method of work according to claim 5 is characterized in that step S2 comprises

Step S21 carries out demodulation to the CMMB signal that receives, and obtains a plurality of multiplexed frames;

Step S22 resolves the control information table that multiplexed frame obtains the CMMB DTV;

Step S23, the user selects program, carries out digital TV data and receives;

Step S24 resolves the audio and video data streams in the multiplexed frame, and to audio and video data streams difference buffer memory.

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