CN104219616B - A kind of apparatus for processing multimedia data, method and wireless multimedia server - Google Patents
A kind of apparatus for processing multimedia data, method and wireless multimedia server Download PDFInfo
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- CN104219616B CN104219616B CN201310219833.2A CN201310219833A CN104219616B CN 104219616 B CN104219616 B CN 104219616B CN 201310219833 A CN201310219833 A CN 201310219833A CN 104219616 B CN104219616 B CN 104219616B
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Abstract
The present invention provides a kind of apparatus for processing multimedia data, method and wireless multimedia servers, wherein the method includes：Network carries out multimedia communication by radio communication with wireless terminal；The multi-medium data for prestoring or obtaining in real time is provided for the multimedia communication.The present invention can provide multimedia service by network for wireless terminal by radio communication.
Description
Technical field
The present invention relates to a kind of wireless communication field more particularly to apparatus for processing multimedia data, method and wireless more matchmakers
Body server.
Background technology
WLAN or Wireless Fidelity WiFi are a kind of wireless communication techniques suitable for LAN environment.WiFi is wireless
Net is based on IEEE802.11 series standards, using the ISM for exempting to authorize（Industrial,Scientific,Medical）In frequency range
2.4GHz or 5.8GHz radio-frequency ranges into row data communication.According to IEEE802.11 series standards, the data of WiFi wireless networks
Rate can reach 2Mbps（802.11）、11Mbps（802.11b）、54Mbps（802.11a/802.11g）Or 54-600Mbps
（802.11n）, meanwhile, 802.11ac the and 802.11ad specifications of more High Data Rate and product are also in the process of development.
Radio frequency discrimination RFID is one and realizes that contactless information is transmitted and passes through institute by Space Coupling using radiofrequency signal
The information of transmission reaches the technology of identifying purpose.Most basic radio-frequency recognition system is by electronic tag Tag and reader Reader
Composition.The groundwork flow of radio frequency identification is：
Reader sends the radiofrequency signal of certain frequency by transmitting antenna, when electronic tag enters transmitting antenna workspace
Induced current is generated when domain, is obtained energy and is activated；
Electronic tag sends itself coding and data information by built-in transmission antenna；
System reception antenna receives the carrier signal sent from electronic tag, and read-write is transmitted to through antenna adjustments device
Device, reader obtain the information that electronic tag reports after being demodulated and decoded to received signal, these information can store
In reader, it can also be forwarded in background computer system and be further processed.
Currently, Radio Frequency Identification Technology is in industrial automation, object tracking, communications and transportation control management, anti-fake and military use
Way aspect is used widely.
Second generation wireless communication 2G, third generation wireless communication 3G, forth generation wirelessly communicate 4G radio honeycomb communication nets at present
（Hereinafter referred to as wireless communication networks）Large scale deployment is carried out in the whole world, covering is increasingly perfect, and rate are increasingly cheap.Based on 2G/
The wireless cellular data of 3G/4G communicates（Hereinafter referred to as wireless data communication or wireless data）It is widely used, no line number
According to sector application it is also very universal.Common application based on wireless data communication technology is that terminal device utilizes no line number
According to return path, collected data information is sent to the data processing centre on internet, by data processing centre to end
End equipment and its site environment are monitored and manage.It is this kind of to carry out remote data acquisition and monitoring using radio honeycomb communication net
It applies and is widely applied in fields such as article/equipment tracking, on-site supervision, satellite navigation, vehicle monitoring, command schedulings.
With the development of WiFi, smart mobile phone, tablet computer, laptop the relevant technologies and product, has multimedia
The WiFi terminal equipment of playing function becomes increasingly popular.Under passenger train environment, due to the high-speed mobile of train, train passenger number
Measure numerous, radio honeycomb communication net can not support to stablize, the communication bandwidth of high-speed, passenger be difficult by radio communication net access
Relatively rich media content on internet.This problem under EMU passenger train, high-speed EMUs passenger train environment more
It is serious.Therefore, when taking passenger train, if passenger needs to appreciate movie and video programs, often selection plays and is stored in terminal
The multimedia content stored in equipment the machine.Currently, not yet large scale deployment WiFi access points under train environment
（AccessPoint）Equipment lacks the content service under WiFi environment；And it goes to access Long-range links by radio honeycomb communication net
Net content faces many difficulties such as bandwidth is small, stability is poor again, this causes prodigious barrier to the video display entertainment requirements of train passenger
Hinder.
Invention content
The purpose of the present invention is a kind of apparatus for processing multimedia data, method and wireless multimedia servers, by wireless
Communication network provides multimedia service for wireless terminal.
To achieve the goals above, an embodiment of the present invention provides a kind of apparatus for processing multimedia data, for wireless more
Media server, described device include：
Wireless communication module, for network to carry out multimedia communication by radio communication with wireless terminal；
Processing module, for by the multi-medium data for prestoring or obtaining in real time be supplied to the wireless communication module into
Row multimedia communication.
Above-mentioned apparatus for processing multimedia data, wherein the wireless communication module specifically includes：
WiFi communication module, it is pre- for receiving the request that the wireless terminal is sent by Wireless Fidelity WiFi communication network
The multimedia data request of the multi-medium data for first storing or obtaining in real time later passes through the multi-medium data described
WiFi communication network is sent to the wireless terminal.
Above-mentioned apparatus for processing multimedia data, wherein the wireless communication module further includes specifically：
Cellular communication module is more for receiving the carrying update that the wireless terminal is sent by wireless cellular communication network
The modification of media data instructs；
The processing module is specially to be instructed according to the modification, to the multimedia number for prestoring or obtaining in real time
According to modifying.
Above-mentioned apparatus for processing multimedia data, wherein the wireless communication module further includes specifically：
Radio frequency identification module, for passing through radio signals recognition radio frequency label information；
The processing module specially stores the RFID tag information, and in the wireless terminal described in
When WiFi communication module or the cellular communication module carry out the RFID tag information request, the radio frequency identification is read
Label information so that the RFID tag information is sent to institute by the WiFi communication module or the cellular communication module
State wireless terminal.
Above-mentioned apparatus for processing multimedia data, wherein described device further includes：
Locating module obtains the server selection information for the positioning signal according to navigation satellite；
The processing module is specially to store the location information, and pass through the WiFi communication mould in the wireless terminal
When block or the cellular communication module carry out location information requests, the location information is read so that the WiFi communication module
Or the cellular communication module is by the location information to the wireless terminal.
Above-mentioned apparatus for processing multimedia data, wherein described device further includes：
Sensor processing module, the environmental signal for receiving the server external environment by sensor；
The processing unit is specially to store the environmental signal, and pass through the WiFi communication mould in the wireless terminal
When block or the cellular communication module carry out environmental signal request, the environmental signal is read, the WiFi communication module is passed through
Or the environmental signal is sent to the wireless terminal by the cellular communication module.
Above-mentioned apparatus for processing multimedia data, wherein described device further includes：
Control module, the instruction for being sent according to the processing module generate control signal, the control signal are used in combination
Drive external equipment.
To achieve the goals above, the embodiment of the present invention additionally provides a kind of multimedia data processing method, for wireless
Multimedia server, the method includes：
Network carries out multimedia communication by radio communication with wireless terminal；
The multi-medium data for prestoring or obtaining in real time is provided for the multimedia communication.
Above-mentioned multimedia data processing method, wherein described network carries out more matchmakers by radio communication with wireless terminal
Body communication is specially：
Receive the more of the first multi-medium data of request that the wireless terminal is sent by Wireless Fidelity WiFi communication network
First multi-medium data is sent to the wireless terminal by media data request by the WiFi communication network later.
Above-mentioned multimedia data processing method, wherein described network carries out more matchmakers by radio communication with wireless terminal
Body communication further includes specifically：
The modification for receiving the carrying update multi-medium data that the wireless terminal is sent by wireless cellular communication network refers to
It enables；
The multi-medium data for prestoring or obtaining in real time that provided for the multimedia communication is specially according to
Modification instruction, modifies to the multi-medium data for prestoring or obtaining in real time.
Above-mentioned multimedia data processing method, wherein described network carries out more matchmakers by radio communication with wireless terminal
Body communication further includes specifically：
Pass through radio signals recognition radio frequency label information；
The multi-medium data for prestoring or obtaining in real time that provided for the multimedia communication is specially described in storage
RFID tag information, and the wireless terminal by the WiFi communication network or the wireless cellular communication network into
When the row RFID tag information request, the RFID tag information is read so that the server passes through described
The RFID tag information is sent to the wireless terminal by WiFi communication network or the wireless cellular communication network.
Above-mentioned multimedia data processing method, wherein the method further includes：
According to the positioning signal of navigation satellite, the server selection information is obtained；
The multi-medium data for prestoring or obtaining in real time that provided for the multimedia communication is specially described in storage
Location information, and positioning letter is carried out by the WiFi communication network or the wireless cellular communication network in the wireless terminal
When breath request, the location information is read so that the server is logical by the WiFi communication network or the radio honeycomb
Communication network is by the location information to the wireless terminal.
Above-mentioned multimedia data processing method, wherein the method further includes：
The environmental signal of the server external environment is received by sensor；
The multi-medium data for prestoring or obtaining in real time that provided for the multimedia communication is specially described in storage
Environmental signal, and environmental signal is carried out by the WiFi communication module or the cellular communication module in the wireless terminal and is asked
When asking, the environmental signal is read so that the server passes through the WiFi communication network or the radio honeycomb communication net
The environmental signal is sent to the wireless terminal by network.
Above-mentioned multimedia data processing method, wherein the method further includes：
Control signal is generated according to the instruction that the processing module is sent, the control signal driving external equipment is used in combination.
To achieve the goals above, the embodiment of the present invention additionally provides a kind of wireless multimedia server, the server
Including apparatus for processing multimedia data described in any one of the above embodiments.
The embodiment of the present invention have the advantages that at least one of：
The embodiment of the present invention can provide multimedia service by network for wireless terminal by radio communication；
The embodiment of the present invention, additionally it is possible to network monitors wireless multimedia server in real time by radio communication, and
The multi-medium data or other data stored to wireless multimedia server by wireless communication networks is modified；
Include not only pre-stored multimedia number for the multi-medium data that wireless terminal provides in the embodiment of the present invention
According to can also include real-time multimedia or other data；
The embodiment of the present invention passes through optional sensor processing unit support working application；
The embodiment of the present invention can provide the location information of server according to satellite positioning；
The embodiment of the present invention can utilize sensor to obtain environmental signal, and the environmental signal driving external equipment is used in combination.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of apparatus for processing multimedia data provided in an embodiment of the present invention；
Fig. 2 is the processing procedure schematic diagram of requesting multimedia data provided in an embodiment of the present invention；
Fig. 3 is the processing procedure schematic diagram that multi-medium data is changed in request provided in an embodiment of the present invention；
Fig. 4 is the processing procedure schematic diagram of RFID tag provided in an embodiment of the present invention；
Fig. 5 is positioning process schematic diagram provided in an embodiment of the present invention；
Fig. 6 is the processing procedure schematic diagram of multimedia video data provided in an embodiment of the present invention；
Fig. 7 is the processing procedure schematic diagram provided in an embodiment of the present invention for controlling signal driving external alert device；
Fig. 8 is the structural schematic diagram of the functional entity of apparatus for processing multimedia data provided in an embodiment of the present invention；
Fig. 9 is the flow diagram of multimedia data processing method provided in an embodiment of the present invention.
Specific implementation mode
To keep technical problems to be solved of the embodiment of the present invention, technical solution and advantage clearer, below in conjunction with attached
Figure and specific embodiment are described in detail.
The present invention provides a kind of apparatus for processing multimedia data, are used for wireless multimedia server, described device such as Fig. 1
It is shown, including：
Wireless communication module, for network to carry out multimedia communication by radio communication with wireless terminal；
Processing module, for by the multi-medium data for prestoring or obtaining in real time be supplied to the wireless communication module into
Row multimedia communication.
Above-mentioned wireless communication module is for realizing network carries out multimedia communication by radio communication with wireless terminal, simultaneously
It is more that the multi-medium data for prestoring or obtaining in real time can be supplied to the wireless communication module to carry out by above-mentioned processing module
Media communication has reached the purpose of the present invention.
Wherein it is preferred to which the wireless communication module specifically includes：
WiFi communication module, it is pre- for receiving the request that the wireless terminal is sent by Wireless Fidelity WiFi communication network
The multimedia data request of the multi-medium data for first storing or obtaining in real time later passes through the multi-medium data described
WiFi communication network is sent to the wireless terminal.
At this point, processing module be specially the first multi-medium data for prestoring or obtaining in real time is supplied to it is described wireless
Communication module carries out multimedia communication.
The detailed process of wireless terminal requests multi-medium data is illustrated below.
<Example 1>
As shown in Fig. 2, detailed process is：
Step 1, WiFi communication module receives the multimedia data request that wireless terminal is sent by WiFi communication network；
Step 2, the multimedia data request that wireless terminal is sent is sent to processing module by WiFi communication module；
Step 3, processing module reads corresponding multi-medium data from pre-stored multi-medium data, more matchmakers here
Volume data is stored in advance in external memory solid-state hard disk SSD, or is obtained and be buffered in random access storage device RAM in real time
Or in external memory solid-state hard disk SSD；
Step 4, the multi-medium data of reading is sent to WiFi communication module by processing module；
Step 5, the multi-medium data of reception is sent to wireless terminal by WiFi communication module.
Wherein it is preferred to which the wireless communication module further includes specifically：
Cellular communication module is more for receiving the carrying update that the wireless terminal is sent by wireless cellular communication network
The modification of media data instructs；
The processing module is specially to be instructed according to the modification, to the multimedia number for prestoring or obtaining in real time
According to modifying.
Here wireless cellular communication network is 2G, 3G or 4G network.And change the data to be changed of instruction instruction simultaneously
It is not limited to the multi-medium data, can also be the modification of other data or file to prestoring or obtaining in real time.It is excellent
Selection of land can be updated the software on the multimedia server by the administrator of the wireless multimedia server, this
Shi Xiugai instructions are specially to update the data or the instruction of file, administrator can with remote computer by cellular communication module,
The modification instruction for carrying and updating the data is sent to processing module, processing module is instructed according to the modification, to it is pre-stored other
Data or file are modified；It, can be by administrator's taking portable terminal to institute when the data or smaller file to be changed
That states the WiFi communication module of multimedia server can be in coverage area, by the portable terminal to the multimedia service
Other data or file of the storage of device are modified.
In addition, the administrator of wireless multimedia server can also be sent by above-mentioned WiFi communication module carries update
The modification of data instructs, and then changes pre-stored multi-medium data, other data or file.
The cellular communication module, which can be also used for receiving the wireless terminal or remote computer, passes through the wireless bee
The control instruction that nest communication network is sent；Then the control instruction is sent to the multimedia server by processing module
Control module drives external equipment by control module or directly drives external equipment according to the control instruction.
In addition, the processing module can also be acquired by the wireless cellular communication network, obtained by cellular communication module
The data for taking or generating are sent to remote computer, convenient for administrator or other data analysts according to acquisition, acquisition or production
Raw data carry out the data analysis of next step.
The detailed process for changing administrator request multi-medium data or other data is illustrated below.
<Example 2>
As shown in figure 3, administrator by WiFi network manage on the server pre-stored multi-medium data or its
The process of its data is：
Step 0, long-distance controlling multimedia order and data are packaged as carrying the modification instruction updated the data by administrator, temporarily
There are in remote server；
Step 0a, concurrently with step 0, administrator directly or indirectly operates wireless terminal, will control multi-media command with
Data are packaged as carrying the modification instruction updated the data, are temporarily stored in wireless terminal；
Step 1a, WiFi communication module receive the remote control that administrator is submitted by remote server by WiFi network
Multi-media command and data；
Step 0b, concurrently with step 1a, WiFi communication module receive administrator by WiFi network and pass through wireless terminal
The control multi-media command and data of submission；
Step 1b, the long-distance controlling multimedia order that WiFi communication module submits administrator give processing mould with data forwarding
Block；
Step 3, processing module according to the control command of reception and data come change pre-stored multi-medium data or its
Its data, multi-medium data or other data here are stored in advance in random access storage device RAM or external memory is solid
In state hard disk SSD.
Certainly, administrator can also manage pre-stored multi-medium data on the server by wireless cellular network
Or other data, detailed process are：
Step 0, long-distance controlling multimedia order and data are packaged as carrying the modification instruction updated the data by administrator, temporarily
There are in remote server；
Step 2a, cellular communication module receive the long-distance controlling multimedia order that administrator submits by wireless cellular network
With data, the preferred 3G network of wireless cellular network here；
Step 2b, the long-distance controlling multimedia order that cellular communication module submits administrator give processing mould with data forwarding
Block；
Step 3, processing module according to the control command of reception and data come change pre-stored multi-medium data or its
Its data, multi-medium data or other data here are stored in advance in random access storage device RAM or external memory is solid
In state hard disk SSD.
Wherein it is preferred to RF tag can also be identified in the embodiment of the present invention, support working application, i.e. institute
Stating wireless communication module further includes specifically：
Radio frequency identification module, for passing through radio signals recognition radio frequency label information；
The processing module specially stores the RFID tag information, and in the wireless terminal described in
When WiFi communication module or the cellular communication module carry out the RFID tag information request, the radio frequency identification is read
Label information so that the RFID tag information is sent to institute by the WiFi communication module or the cellular communication module
State wireless terminal, remote computer or other smart machines etc..
To the processing procedure of RFID tag, detailed description are as follows.
As shown in figure 4, first having to reading rfid tags information, following two modes can be passed through：
<Mode one>The radio frequency identification module and RFID antenna provided through the embodiment of the present invention, which reads radio frequency, to be known
Distinguishing label information, specifically includes：
Step 1a, RFID antenna activate RFID tag, RFID tag to be penetrated to RFID antenna
Frequency signal；
Step 1b, radio frequency identification module obtain radio frequency identification radiofrequency signal by RFID antenna, and to radio frequency identification
Signal is demodulated and is decoded, and RFID tag information is obtained；
RFID tag data information is sent to processing module by step 1c, radio frequency identification module.
Certainly, when carrying out radio frequency identification, radio frequency identification module is not essential, and can also pass through external frequency read/write
RFID tag information is directly acquired, it is as follows.
<Mode two>By external radio-frequency identification reader/writer and RFID antenna reading rfid tags information,
It specifically includes：
Step 2a, external radio frequency identification reader antenna activate RFID tag, and RFID tag is to radio frequency identification
Reading and writing device antenna emits radiofrequency signal；
Step 2b, external radio-frequency identification reader/writer obtain radiofrequency signal, are demodulated and decoded to radiofrequency signal, penetrated
Frequency identification tag information, and RFID tag data information is exported to processing module.
After reading rfid tags information, RFID tag information is further stored by processing module：
Step 3, the RFID tag data information that processing module storage receives is specially write-in random access here
In memory RAM or in the database file of solid-state hard disk SSD.
When wireless terminal carries out the RFID tag information request by the WiFi communication module, specifically include：
RFID tag information is sent to WiFi communication module by step 4a, processing module；
Step 4b, it is (or remote computer, other that RFID tag information is sent to wireless terminal by WiFi communication module
Smart machine etc.).
It is specific to wrap when wireless terminal carries out the RFID tag information request by the cellular communication module
It includes：
The RFID tag information received is sent to cellular communication module by step 5a, processing module, nothing here
The preferred 3G communication networks of line cellular communications networks；
Step 5b, cellular communication module by RFID tag data information be sent to wireless terminal (or remote computer,
Other smart machines etc.).
The embodiment of the present invention realizes by the above process to be identified RF tag, store and transmits, support
Working application.Concrete application scene is illustrated below.
<Example 3>
It, can be using the work card of attendant as radio frequency identification marking when the wireless multimedia server is applied to train environment
Label, railway carriage position etc. where determining attendant by the multimedia server.
<Example 4>
Cargo container or package can also be pasted or associated RF tag is identified, be taken by the multimedia
Business device determines the details of cargo in cargo container or package.
The application scenarios of apparatus for processing multimedia data support working application provided in an embodiment of the present invention are varied,
It is numerous to list herein.
Preferably, described device further includes：
Locating module obtains the server selection information for the positioning signal according to navigation satellite；
The processing module is specially to store the location information, and pass through the WiFi communication mould in the wireless terminal
When block or the cellular communication module carry out location information requests, the location information is read so that the WiFi communication module
Or the cellular communication module is by the location information to the wireless terminal remote computer or other smart machines etc..
By receive GPS of America navigation satellite, Chinese Beidou navigation satellite, three kinds of Russian GLONASS navigation satellite it
One or more navigation satellite positioning signals, determine the location information of the server, further, institute are stored by processing module
Location information is stated, carrying out location information by the WiFi communication module or the cellular communication module in the wireless terminal asks
When asking, obtain the location information so that the WiFi communication module or the cellular communication module by the location information extremely
The wireless terminal；It is of course also possible to according to application demand, location information is passed through into the wireless communication unit by processing module
Or cellular communication subelement is sent to other terminals or server, including remote computer, other smart machines etc..
To the process of localization process, detailed description are as follows.
As shown in figure 5, first having to obtain location information, following two modes can be passed through：
<Mode one>The locating module provided through the embodiment of the present invention obtains location information, specifically includes：
Step 1a, locating module obtain navigation satellite positioning signal by antenna, here preferred big-dipper satellite, and to the Big Dipper
Satellite positioning signal is demodulated and is calculated, and location information is obtained；
Location information is sent to processing module by step 1b, locating module.
Certainly, when being positioned, locating module is not essential, and it is fixed to be directly acquired by external positioning terminal
Position information is as follows.
<Mode two>Location information is obtained by external positioning terminal, is specifically included：
Step 2a, external positioning terminal obtain navigation satellite positioning signal by antenna, here preferred big-dipper satellite, to north
Bucket satellite positioning signal is demodulated and is calculated, and location information is obtained；
Step 2b, external positioning terminal pass through communication interface（Such as serial ports）Location information is sent to processing module.
After obtaining location information, location information is further stored by processing module：
Step 3, the location information that processing module storage receives is specially in write-in random access storage device RAM here
Or in the database file of solid-state hard disk SSD.
When wireless terminal carries out the location information requests by the WiFi communication module, specifically include：
Location information is sent to WiFi communication module by step 4a, processing module；
Step 4b, location information is sent to wireless terminal by WiFi communication module, and (or remote computer, other intelligence are set
It is standby).
When wireless terminal carries out the location information requests by the cellular communication module, specifically include：
The location information received is sent to cellular communication module by step 5a, processing module, and radio honeycomb here is logical
The preferred 3G communication networks of communication network；
Location information is sent to wireless terminal (or remote computer, other smart machines by step 5b, cellular communication module
Deng).
The embodiment of the present invention realizes identification, storage and transmission to location information, concrete application by the above process
Scene is illustrated below.
<Example 5>
When the wireless multimedia server is applied to train environment, it can determine that train is currently located by locating module
Position, railway dispatching personnel can carry out the rational management of train after specifying the position of the train.
The application scenarios of apparatus for processing multimedia data support working application provided in an embodiment of the present invention are varied,
It is numerous to list herein.
Preferably, described device further includes：
Sensor processing module, the environmental signal for receiving the server external environment by sensor；
The processing unit is specially to store the environmental signal, and pass through the WiFi communication mould in the wireless terminal
When block or the cellular communication module carry out environmental signal request, the environmental signal is read, the WiFi communication module is passed through
Or the environmental signal is sent to the wireless terminal by the cellular communication module（Or remote computer, other smart machines
Deng）.
The function of sensor processing module is the original data signal received in environment, is converted and is handled, and ring is generated
Border signal, and the environmental signal of generation is sent to processing unit, further, the environmental signal is stored by processing module,
When the wireless terminal carries out environmental signal request by the WiFi communication module or the cellular communication module, institute is obtained
State environmental signal so that the WiFi communication module or the cellular communication module send the environmental signal to the wireless end
End, it is of course also possible to according to the request of wireless terminal, passes through the wireless communication unit or bee by processing module by location information
Nest communication subelement is sent to other terminals or server, including remote computer, other smart machines etc..
Preferably, the sensor processing module is video data processing module, is adopted by camera or web camera
Collect real-time multimedia video data, and by the WiFi communication module or the cellular communication module by the real-time multimedia
Video data is sent to wireless terminal, other terminals or server, including remote computer, other smart machines etc..That is, this hair
The apparatus for processing multimedia data that bright embodiment provides can not only provide pre-stored multi-medium data for wireless terminal, also
Real-time multimedia or other data can be provided.
To the processing procedure of multimedia video data, detailed description are as follows.
As shown in fig. 6, first having to acquisition video data, collected video data preferably, should meet H.264 specification,
If do not meet the specification, compression and conversion process are carried out to collected video data, generates and meets H.264 specification
Video data, acquisition mode have following two：
<Mode one>Video data is acquired by camera.
If camera itself can not generate the video data for meeting H.264 specification, which is：
Collected video data is input to sensor processing module by step 1a, camera, sensor processing here
Module is specially video sensor processing module, and video sensor data processing module compresses collected video data
With conversion process, the video data for meeting H.264 specification is generated；
Step 1b, video sensor data processing module export the video data for meeting H.264 specification to processing module.
If camera itself can generate the video data for meeting H.264 specification, which is：
Step 2, camera itself, which generates, meets the video data of H.264 specification, and by collected H.264 video data
It exports to processing module.
<Mode two>Video data is acquired by web camera.
If web camera itself can not generate the video data for meeting H.264 specification, which is：
Step 3a, web camera send collected video data to WiFi communication module；
Step 3b, WiFi communication module send collected video data to video sensor processing module, and video passes
Sensor processing module carries out compression and conversion process to collected video data, generates the video data for meeting H.264 specification；
With step 1b, video sensor processing module exports the video data for meeting H.264 specification to processing module.
If web camera itself can generate the video data for meeting H.264 specification, which is：
Step 3a, web camera itself, which generates, meets the video data of H.264 specification, and will meet H.264 specification
Video data is sent to WiFi communication module；
Step 3c, WiFi communication module export the video data for meeting H.264 specification to processing module.
After obtaining video data, video data is further cached or stored by processing module：
Step 4, the video data that processing module storage receives is specially in write-in random access storage device RAM here
Or in the database file of solid-state hard disk SSD.
When wireless terminal carries out the real time video data request by the WiFi communication module, specifically include：
Real time video data is sent to WiFi communication module by step 5a, processing module；
Real time video data is sent to wireless terminal (or remote computer, other intelligence by step 5b, WiFi communication module
Equipment).
When wireless terminal carries out the real time video data by the cellular communication module asks, specifically include：
Real time video data is sent to cellular communication module by step 6a, processing module, radio honeycomb communication net here
The preferred 3G communication networks of network；
Real time video data is sent to wireless terminal (or remote computer, other intelligence by step 6b, cellular communication module
Equipment etc.).
Preferably, described device further includes：
Control module, the instruction for being sent according to the processing module generate control signal, the control signal are used in combination
Drive external equipment.
Here the preferred alarm of external equipment.
Control signal is generated below according to the environmental signal that gyroscope and acceleration transducer, temperature sensor obtain, and
For driving external alert device with the control signal, the above process is described in detail.
As shown in fig. 7, obtaining motion state data by gyroscope and acceleration sensor module：
Step 1, acceleration sensor module is calculated posture, is inclined by the induction of angular velocity and acceleration physical quantity
Rake angle, the direction of motion（Change including motion state）Etc. motion state datas, and above-mentioned motion state data is sent to
Processing module；
External temperature data is obtained by external temperature sensor：
Step 2, external temperature sensor is by the induction to temperature, calculates external temperature data, and by external temperature
Data are sent to processing module by serial ports；
Then by processing module storage or buffered motion status data or external temperature data：
Step 3, the motion state data received or external temperature data write-in are stored in random access by processing module
In database file in memory RAM or in solid-state hard disk SSD.
It is alarmed again by control module：
Alarm command is sent to control module by step 4a, processing module；
Step 4b, control module change the group of current value, voltage value or the current value and voltage value of the control signal of output
It closes, driving external alert device alarm.
Pass through WiFi communication module transfer motion state data or external temperature data：
The motion state data received or external temperature data are sent to WiFi communication mould by step 5a, processing module
Block；
Motion state data or external temperature data are sent to wireless terminal or other intelligence by step 5b, WiFi communication module
It can equipment.
Motion state data or external temperature data are transmitted by cellular communication module：
The motion state data received or external temperature data are sent to cellular communication mould by step 6a, processing module
Block, here preferably 3G communication modules；
Motion state data or external temperature data are sent to remote computer or other intelligence by step 6b, 3G communication module
It can equipment.
The embodiment of the present invention generates control signal according to the instruction that processing module is sent, and is used in combination the control signal driving outer
Portion's equipment alarm can improve safety.It is illustrated below.
<Example 6>
When the wireless multimedia server is applied to train environment, the wireless multimedia server can pass through gyro
Instrument and acceleration transducer obtain direction, the angle of inclination etc. of current train operation, and judge that the train is at runtime accordingly
It is no to there are the security risks such as overturning, when there are security risk, control signal, driving are generated according to the instruction that processing unit is sent
External alert device is alarmed, and driver is prompted further to promote the safety of the train operation.
In addition, in embodiments of the present invention, additionally providing a kind of functional entity of apparatus for processing multimedia data, such as Fig. 8
It is shown, including：
External power supply for receiving external power supply, and is converted to suitable electric current and voltage specification by power supply, is server
Other modules with power of equipment are supplied, and power supply, by external power interface, is connected, power supply passes through master with the external world with conducting wire
Printed circuit conducting wire or discrete conducting wire on mounted circuit board are connected with other modules of server apparatus, and electric current is flowed to from outside
Power supply flows to other modules of server apparatus by the conversion of power supply；
Processing module controls the operation of all other module for running operating system and software, and with other modules into
Row data exchange, processing module are connected to host circuit board by itself chip pin, and then direct or indirect with other modules
It is connected, the input signal cable of processing module is connected to the output signal line of other modules, and the output signal line of processing module connects
It is connected to the input signal cable of other modules；
WiFi communication module, for realizing the physical layer and partial data link layer functionality of WLAN, WiFi communication module is logical
Cross Ethernet interface, Mini pci interfaces, Mini PCI-E interfaces or USB（UniversalSerial Bus）Interface and processing
Module is directly or indirectly connected, the USB interface described in the embodiment of the present invention, refer to USB1.0 interfaces, USB2.0 interfaces or
USB3.0 interfaces, the Ethernet interface, refer to meet IEEE802.3 series, communication speed 10Mbps, 100Mbps or
Ethernet interface, fastethernet interface or the gigabit ethernet interface of 1Gbps, WiFi communication module by antennal interface with
External antenna is connected；
Cellular communication module, for realizing 2G/3G/4G radio honeycomb communications, cellular communication module by Ethernet interface,
Mini pci interfaces, Mini PCI-E interfaces or USB interface are directly or indirectly connected with processing module, and cellular communication module is logical
It crosses antennal interface with external antenna to be connected, cellular communication module is optional module；
Locating module navigates and defends for receiving GPS of America navigation satellite, Chinese Beidou navigation satellite, Russian GLONASS
One or more navigation satellite positioning signals of three kinds of star calculate location information and export location information to processing module,
Locating module is directly or indirectly connected by serial ports or USB interface with processing module, and the serial ports described in the embodiment of the present invention is
Finger meets UART（Universal Asynchronous Receiver Transmitter）, RS-232, RS-422 or RS-
The communication interface of 485 standards, locating module are connected by antennal interface with external antenna, and locating module is optional module；
Radio frequency identification module activates RFID tag for emitting radiofrequency signal, and reads user information from RFID tag,
Also it can write data into RFID tag and be stored, radio frequency identification module passes through serial ports, SPI（Serial Peripheral
Interface）Interface, USB interface or SD card interface are directly or indirectly connected with processing module, and radio frequency identification module passes through day
Line interface is connected with external antenna, and radio frequency identification module is optional module；
Memory module module is used for storage system and user data, and memory module can be mechanical hard disk or SSD（Solid
State Drive）Solid state disk passes through ide interface, Mini PCI-E interfaces, e-SATA interfaces, SATA2 interfaces or SATA3
Interface is directly or indirectly connected with processing module, and memory module can also be flash chip（It is dodged including nand flash memory chip, NOR
Deposit chip, eMMC chips）, USB storage（Also become USB flash disk）, SD card, Micro SD cards, pass through the corresponding interface and processing module
Directly or indirectly it is connected, memory module can also be the combination of one of the above or a variety of components；
Sensor processing module is converted and is handled, generate number letter for receiving the original data signal in environment
Number, and the digital signal of generation is exported to processing module, the original data signal described in the embodiment of the present invention, including pressure letter
Number（Including pressure signal）, tension signal（Including pulling force signal）, torque force signal, friction force signal, temperature signal, humidity letter
Number, luminance signal, intensity of illumination signal, transmitted intensity signal（Including uitraviolet intensity signal）, intensity of sound signal（Including making an uproar
Sound intensity signal）, vibration signal, speed signal, acceleration signal, angular velocity signal, vision signal, audio signal, pollutant
Concentration signal, chemical substance concentration signal（Including other harmful substances matter concentration signal）, shock strength, gas flow rate signal
（Including gas instantaneous flow rate signal）, wind velocity signal, wind intensity signal, flow rate of liquid signal（Believe including transient liquid flow
Number）, liquid depth signal（Including liquid level signal）, altitude signal, electromagnetic field signal（Including radiofrequency signal）Deng sensor
Processing module is exported by serial ports, blue tooth interface, USB interface or universal input（GPIO）Interface and processing module directly or
Connect connected, sensing data processing module is optional module；
Control module converts it to suitably control signal for the control command that receiving processing module is sent out, such as
The combination of specific voltage value and current value, and export to external interface, to control external equipment or act on external environment, control
Molding block is optional module.
Above-mentioned functional entity can provide multimedia service by network for wireless terminal by radio communication, and be wireless whole
It includes pre-stored multi-medium data to hold the multi-medium data provided not only, can also include real-time multimedia or other numbers
According to；Meanwhile passing through optional sensor processing unit support working application；Determining for server can be provided according to satellite positioning
Position information；Sensor can be utilized to obtain environmental signal, the environmental signal driving external equipment is used in combination, promotes safety.
The embodiment of the present invention additionally provides a kind of multimedia data processing method, is used for wireless multimedia server, described
Method is as shown in figure 9, include：
Step 91, network carries out multimedia communication by radio communication with wireless terminal；
Step 92, the multi-medium data for prestoring or obtaining in real time is provided for the multimedia communication.
Above-mentioned multimedia data processing method, wherein described network carries out more matchmakers by radio communication with wireless terminal
Body communication further includes specifically：
The modification for receiving the carrying update multi-medium data that the wireless terminal is sent by wireless cellular communication network refers to
It enables；
The multi-medium data for prestoring or obtaining in real time that provided for the multimedia communication is specially according to
Modification instruction, modifies to the multi-medium data for prestoring or obtaining in real time.
Above-mentioned multimedia data processing method, wherein described network carries out more matchmakers by radio communication with wireless terminal
Body communication further includes specifically：
Pass through radio signals recognition radio frequency label information；
The multi-medium data for prestoring or obtaining in real time that provided for the multimedia communication is specially described in storage
RFID tag information, and the wireless terminal by the WiFi communication network or the wireless cellular communication network into
When the row RFID tag information request, the RFID tag information is read so that the server passes through described
The RFID tag information is sent to the wireless terminal by WiFi communication network or the wireless cellular communication network.
Above-mentioned multimedia data processing method, wherein the method further includes：
According to the positioning signal of navigation satellite, the server selection information is obtained；
The multi-medium data for prestoring or obtaining in real time that provided for the multimedia communication is specially described in storage
Location information, and positioning letter is carried out by the WiFi communication network or the wireless cellular communication network in the wireless terminal
When breath request, the location information is read so that the server is logical by the WiFi communication network or the radio honeycomb
Communication network is by the location information to the wireless terminal.
Above-mentioned multimedia data processing method, wherein the method further includes：
The environmental signal of the server external environment is received by sensor；
The multi-medium data for prestoring or obtaining in real time that provided for the multimedia communication is specially described in storage
Environmental signal, and environmental signal is carried out by the WiFi communication module or the cellular communication module in the wireless terminal and is asked
When asking, the environmental signal is read so that the server passes through the WiFi communication network or the radio honeycomb communication net
The environmental signal is sent to the wireless terminal by network.
Above-mentioned multimedia data processing method, wherein the method further includes：
Control signal is generated according to the instruction that the processing module is sent, the control signal driving external equipment is used in combination.
The present invention also provides a kind of wireless multimedia server, the server includes more matchmakers described in any one of the above embodiments
Volume data processing unit.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (11)
1. a kind of apparatus for processing multimedia data, it to be used for wireless multimedia server, which is characterized in that described device includes：
Wireless communication module, for network to carry out multimedia communication by radio communication with wireless terminal；
Processing module, for being supplied to the wireless communication module to carry out multimedia communication pre-stored multi-medium data；
The wireless communication module further includes specifically：
Cellular communication module updates multimedia for receiving the wireless terminal by the carrying that wireless cellular communication network is sent
The modification of data instructs；
The processing module be specially according to the modification instruction, to the multi-medium data for prestoring or obtaining in real time into
Row modification；
The wireless communication module further includes specifically：
WiFi communication module is deposited for receiving the wireless terminal by the request that Wireless Fidelity WiFi communication network is sent in advance
The multimedia data request of storage or the multi-medium data obtained in real time, passes through the WiFi by the multi-medium data later
Communication network is sent to the wireless terminal.
2. apparatus for processing multimedia data as described in claim 1, which is characterized in that the wireless communication module specifically also wraps
It includes：
Radio frequency identification module, for identifying RFID tag information by radio signals；
The processing module is specially to store the RFID tag information, and lead to by the WiFi in the wireless terminal
When believing that module or the cellular communication module carry out the RFID tag information request, the RFID tag letter is read
Breath so that the RFID tag information is sent to described wireless by the WiFi communication module or the cellular communication module
Terminal.
3. apparatus for processing multimedia data as described in claim 1, which is characterized in that described device further includes：
Locating module obtains the server selection information for the positioning signal according to navigation satellite；
The processing module be specially store the location information, and the wireless terminal by the WiFi communication module or
When the cellular communication module carries out location information requests, the location information is read so that the WiFi communication module or institute
Cellular communication module is stated by the location information to the wireless terminal.
4. apparatus for processing multimedia data as described in claim 1, which is characterized in that described device further includes：
Sensor processing module, the environmental signal for receiving the server external environment by sensor；
The processing unit be specially store the environmental signal, and the wireless terminal by the WiFi communication module or
When the cellular communication module carries out environmental signal request, the environmental signal is read, the WiFi communication module or institute are passed through
It states cellular communication module and the environmental signal is sent to the wireless terminal.
5. apparatus for processing multimedia data as described in claim 1, which is characterized in that described device further includes：
Control module, the instruction for being sent according to the processing module generate control signal, the control signal are used in combination to drive
External equipment.
6. a kind of multimedia data processing method is used for wireless multimedia server, which is characterized in that the method includes：
Network carries out multimedia communication by radio communication with wireless terminal；
The multi-medium data for prestoring or obtaining in real time is provided for the multimedia communication；
It is described that network progress multimedia communication further includes specifically by radio communication with wireless terminal：
The modification for receiving the carrying update multi-medium data that the wireless terminal is sent by wireless cellular communication network instructs；
The multi-medium data for prestoring or obtaining in real time that provided for the multimedia communication is specially according to the modification
Instruction, modifies to the multi-medium data for prestoring or obtaining in real time；
It is described that network progress multimedia communication is specially by radio communication with wireless terminal：
Receive the multimedia for the first multi-medium data of request that the wireless terminal is sent by Wireless Fidelity WiFi communication network
First multi-medium data is sent to the wireless terminal by request of data by the WiFi communication network later.
7. multimedia data processing method as claimed in claim 6, which is characterized in that described to pass through channel radio with wireless terminal
Communication network carries out multimedia communication：
RFID tag information is identified by radio signals；
The multi-medium data for prestoring or obtaining in real time that provided for the multimedia communication is specially to store the radio frequency
Identification tag information, and institute is carried out by the WiFi communication network or the wireless cellular communication network in the wireless terminal
When stating RFID tag information request, the RFID tag information is read so that the server passes through the WiFi
The RFID tag information is sent to the wireless terminal by communication network or the wireless cellular communication network.
8. multimedia data processing method as claimed in claim 6, which is characterized in that the method further includes：
According to the positioning signal of navigation satellite, the server selection information is obtained；
The multi-medium data for prestoring or obtaining in real time that provided for the multimedia communication is specially to store the positioning
Information, and location information is carried out by the WiFi communication network or the wireless cellular communication network in the wireless terminal and is asked
When asking, the location information is read so that the server passes through the WiFi communication network or the radio honeycomb communication net
Network is by the location information to the wireless terminal.
9. multimedia data processing method as claimed in claim 6, which is characterized in that the method further includes：
The environmental signal of the server external environment is received by sensor；
The multi-medium data for prestoring or obtaining in real time that provided for the multimedia communication is specially to store the environment
Signal, and when the wireless terminal carries out environmental signal request by WiFi communication module or cellular communication module, read institute
State environmental signal so that the server is by the WiFi communication network or the wireless cellular communication network by the environment
Signal is sent to the wireless terminal.
10. multimedia data processing method as claimed in claim 6, which is characterized in that the method further includes：
Control signal is generated according to the instruction that processing module is sent, the control signal driving external equipment is used in combination.
11. a kind of wireless multimedia server, which is characterized in that the server includes described in any one of claim 1 to 5
Apparatus for processing multimedia data.
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| CN201310219833.2A CN104219616B (en) | 2013-06-03 | 2013-06-03 | A kind of apparatus for processing multimedia data, method and wireless multimedia server |
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| JP5347977B2 (en) * | 2009-02-06 | 2013-11-20 | ソニー株式会社 | Communication control method and communication system |
| CN102111724A (en) * | 2009-12-29 | 2011-06-29 | 深圳市赛格导航科技股份有限公司 | Vehicle-mounted service system and vehicle-mounted terminal |
| CN102655630B (en) * | 2011-12-19 | 2016-02-10 | 河南理工大学 | A kind of downhole intelligent mobile terminal system based on WiFi technology |
| CN203289487U (en) * | 2013-04-26 | 2013-11-13 | 江苏京海博源信息技术有限公司 | Wireless multimedia server |
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