CN104219616A - Multimedia data processing device and method and wireless multimedia server - Google Patents
Multimedia data processing device and method and wireless multimedia server Download PDFInfo
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- CN104219616A CN104219616A CN201310219833.2A CN201310219833A CN104219616A CN 104219616 A CN104219616 A CN 104219616A CN 201310219833 A CN201310219833 A CN 201310219833A CN 104219616 A CN104219616 A CN 104219616A
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Abstract
The invention provides a multimedia data processing device and method and a wireless multimedia server. The method includes: multimedia communication with a wireless terminal is performed through a wireless communication network; the multimedia communication provides pre-stored or real-time-acquired multimedia data. By the method, multimedia services can be provided for the wireless terminal through the wireless communication network.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of apparatus for processing multimedia data, method and wireless multimedia server.
Background technology
WLAN (wireless local area network) or Wireless Fidelity WiFi are a kind of wireless communication technologys being applicable to LAN environment.WiFi wireless network, based on IEEE802.11 series standard, adopts the ISM(Industrial exempting to authorize, Scientific, Medical) 2.4GHz or 5.8GHz radio-frequency range in frequency range carries out data communication.According to IEEE802.11 series standard, the data transfer rate of WiFi wireless network can reach 2Mbps(802.11), 11Mbps(802.11b), 54Mbps(802.11a/802.11g) or 54-600Mbps(802.11n), meanwhile, more 802.11ac and the 802.11ad specification of High Data Rate and product be also on stream.
Radio frequency discrimination RFID is one and utilizes radiofrequency signal realize contactless information transmission by Space Coupling and pass through the technology that transmitted information reaches identifying purpose.The most basic radio-frequency recognition system is made up of electronic tag Tag and read write line Reader.The groundwork flow process of radio-frequency (RF) identification is:
Read write line sends the radiofrequency signal of certain frequency by transmitting antenna, produces induced current when electronic tag enters transmitting antenna working region, obtains energy and is activated;
Self coding and data message are sent by built-in transmitting antenna by electronic tag;
System acceptance antenna receives the carrier signal of sending from electronic tag, read write line is sent to through antenna adjustments device, read write line carries out demodulation code to the signal received and obtains the information that electronic tag reports afterwards, these information can be stored in read write line, also can be forwarded in background computer system and be further processed.
At present, REID is used widely in industrial automation, object tracking, communications and transportation control and management, false proof and military use.
Current second generation radio communication 2G, third generation radio communication 3G, forth generation radio communication 4G radio honeycomb communication net (hereinafter referred to as wireless communication networks) carry out large scale deployment in the whole world, and cover day by day perfect, rate are day by day cheap.Wireless cellular data communication (hereinafter referred to as RFDC or wireless data) based on 2G/3G/4G is widely used, and the sector application of wireless data is also very universal.Common application based on wireless data communication technology is, terminal equipment utilizes wireless data return path, the data message collected is sent to the data processing centre on the Internet, by data processing centre, monitor and managment is carried out to terminal equipment and site environment thereof.This kind ofly utilize radio honeycomb communication net to carry out remote data acquisition and monitoring to be applied in the fields such as article/equipment is followed the tracks of, on-site supervision, satellite navigation, vehicle monitoring, command scheduling and to be widely applied.
Along with the development of WiFi, smart mobile phone, panel computer, notebook computer correlation technique and product, the WiFi terminal equipment possessing multi-media player function is day by day universal.Under passenger train environment, due to high-speed mobile, the train passenger One's name is legion of train, radio honeycomb communication net cannot be supported to stablize, the communication bandwidth of two-forty, and passenger is difficult to by content of multimedia abundant on wireless communication networks access the Internet.This problem is even more serious under motor train unit passenger train, EMU passenger train environment.Therefore, when taking passenger train, if passenger needs to appreciate movie and video programs, often select broadcasting to be stored in the content of multimedia stored in terminal equipment the machine.At present, not yet large scale deployment WiFi access point (AccessPoint) equipment under train environment, lacks the content service under WiFi environment; And going access remote internet content to face the many difficulties such as bandwidth is little, poor stability by radio honeycomb communication net, this causes very large obstacle to the video display entertainment requirements of train passenger.
Summary of the invention
The object of the invention is a kind of apparatus for processing multimedia data, method and wireless multimedia server, by cordless communication network for wireless terminal provides multimedia service.
To achieve these goals, embodiments provide a kind of apparatus for processing multimedia data, for wireless multimedia server, described device comprises:
Wireless communication module, for carrying out multimedia communication with wireless terminal by cordless communication network;
Processing module, for prestoring or the multi-medium data of Real-time Obtaining is supplied to described wireless communication module and carries out multimedia communication.
Above-mentioned apparatus for processing multimedia data, wherein, described wireless communication module specifically comprises:
WiFi communication module, to be prestored by the request that Wireless Fidelity WiFi communication network sends or the multimedia data request of described multi-medium data of Real-time Obtaining for receiving described wireless terminal, afterwards described multi-medium data being sent to described wireless terminal by described WiFi communication network.
Above-mentioned apparatus for processing multimedia data, wherein, described wireless communication module specifically also comprises:
Cellular communication module, for receiving the modify instruction carrying renewal multi-medium data that described wireless terminal is sent by wireless cellular communication network;
Described processing module is specially according to described modify instruction, to prestore or the multi-medium data of Real-time Obtaining is modified described.
Above-mentioned apparatus for processing multimedia data, wherein, described wireless communication module specifically also comprises:
Radio frequency identification module, for passing through radio signals recognition radio frequency label information;
Described processing module is specially and stores described RFID tag information, and when described wireless terminal carries out described RFID tag information request by described WiFi communication module or described cellular communication module, read described RFID tag information, make described WiFi communication module or described cellular communication module that described RFID tag information is sent to described wireless terminal.
Above-mentioned apparatus for processing multimedia data, wherein, described device also comprises:
Locating module, for the framing signal according to navigation satellite, obtains described server selection information;
Described processing module is specially and stores described locating information, and when described wireless terminal positions information request by described WiFi communication module or described cellular communication module, read described locating information, make described WiFi communication module or described cellular communication module by described locating information to described wireless terminal.
Above-mentioned apparatus for processing multimedia data, wherein, described device also comprises:
Sensor processing module, for receiving the ambient signal of described server external environment condition by transducer;
Described processing unit is specially and stores described ambient signal, and when described wireless terminal carries out ambient signal request by described WiFi communication module or described cellular communication module, read described ambient signal, by described WiFi communication module or described cellular communication module, described ambient signal is sent to described wireless terminal.
Above-mentioned apparatus for processing multimedia data, wherein, described device also comprises:
Control module, generates control signal for the instruction sent according to described processing module, and drives external equipment by described control signal.
To achieve these goals, the embodiment of the present invention additionally provides a kind of multimedia data processing method, and for wireless multimedia server, described method comprises:
Multimedia communication is carried out by cordless communication network with wireless terminal;
Prestore or the multi-medium data of Real-time Obtaining for described multimedia communication provides.
Above-mentioned multimedia data processing method, wherein, describedly carry out multimedia communication with wireless terminal by cordless communication network and be specially:
Receive the multimedia data request of request first multi-medium data that described wireless terminal is sent by Wireless Fidelity WiFi communication network, afterwards described first multi-medium data is sent to described wireless terminal by described WiFi communication network.
Above-mentioned multimedia data processing method, wherein, describedly carry out multimedia communication with wireless terminal by cordless communication network and specifically also comprise:
Receive the modify instruction carrying renewal multi-medium data that described wireless terminal is sent by wireless cellular communication network;
Describedly to prestore or the multi-medium data of Real-time Obtaining is specially according to described modify instruction for described multimedia communication provides, to prestore or the multi-medium data of Real-time Obtaining is modified described.
Above-mentioned multimedia data processing method, wherein, describedly carry out multimedia communication with wireless terminal by cordless communication network and specifically also comprise:
By radio signals recognition radio frequency label information;
Describedly to prestore or the multi-medium data of Real-time Obtaining is specially and stores described RFID tag information for described multimedia communication provides, and when described wireless terminal carries out described RFID tag information request by described WiFi communication network or described wireless cellular communication network, read described RFID tag information, make described server, by described WiFi communication network or described wireless cellular communication network, described RFID tag information is sent to described wireless terminal.
Above-mentioned multimedia data processing method, wherein, described method also comprises:
According to the framing signal of navigation satellite, obtain described server selection information;
Describedly to prestore or the multi-medium data of Real-time Obtaining is specially and stores described locating information for described multimedia communication provides, and when described wireless terminal positions information request by described WiFi communication network or described wireless cellular communication network, read described locating information, make described server by described WiFi communication network or described wireless cellular communication network by described locating information to described wireless terminal.
Above-mentioned multimedia data processing method, wherein, described method also comprises:
The ambient signal of described server external environment condition is received by transducer;
Describedly to prestore or the multi-medium data of Real-time Obtaining is specially and stores described ambient signal for described multimedia communication provides, and when described wireless terminal carries out ambient signal request by described WiFi communication module or described cellular communication module, read described ambient signal, make described server, by described WiFi communication network or described wireless cellular communication network, described ambient signal is sent to described wireless terminal.
Above-mentioned multimedia data processing method, wherein, described method also comprises:
Generate control signal according to the instruction that described processing module sends, and drive external equipment by described control signal.
To achieve these goals, the embodiment of the present invention additionally provides a kind of wireless multimedia server, and described server comprises the apparatus for processing multimedia data described in above-mentioned any one.
The embodiment of the present invention has at least one item in following beneficial effect:
The embodiment of the present invention, can by cordless communication network for wireless terminal provides multimedia service;
The embodiment of the present invention, can also be monitored wireless multimedia server in real time by cordless communication network, and the multi-medium data stored wireless multimedia server by wireless communication networks or other data are modified;
In the embodiment of the present invention, the multi-medium data provided for wireless terminal not only comprises the multi-medium data prestored, and can also comprise real-time multimedia or other data;
The embodiment of the present invention, by optional sensor processing unit holder working application;
The embodiment of the present invention, can provide the locating information of server according to satellite fix;
The embodiment of the present invention, can utilize transducer to obtain ambient signal, and drive external equipment with described ambient signal.
Accompanying drawing explanation
The structural representation of a kind of apparatus for processing multimedia data that Fig. 1 provides for the embodiment of the present invention;
The processing procedure schematic diagram of the requesting multimedia data that Fig. 2 provides for the embodiment of the present invention;
The processing procedure schematic diagram of the request amendment multi-medium data that Fig. 3 provides for the embodiment of the present invention;
The processing procedure schematic diagram of the RFID tag that Fig. 4 provides for the embodiment of the present invention;
The positioning process schematic diagram that Fig. 5 provides for the embodiment of the present invention;
The processing procedure schematic diagram of the multimedia video data that Fig. 6 provides for the embodiment of the present invention;
The processing procedure schematic diagram driving external alert device by control signal that Fig. 7 provides for the embodiment of the present invention;
The structural representation of the functional entity of the apparatus for processing multimedia data that Fig. 8 provides for the embodiment of the present invention;
The schematic flow sheet of the multimedia data processing method that Fig. 9 provides for the embodiment of the present invention.
Embodiment
For the embodiment of the present invention will be solved technical problem, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The invention provides a kind of apparatus for processing multimedia data, for wireless multimedia server, described device as shown in Figure 1, comprising:
Wireless communication module, for carrying out multimedia communication with wireless terminal by cordless communication network;
Processing module, for prestoring or the multi-medium data of Real-time Obtaining is supplied to described wireless communication module and carries out multimedia communication.
Above-mentioned wireless communication module is used for realizing carrying out multimedia communication with wireless terminal by cordless communication network, simultaneously above-mentioned processing module can will to prestore or the multi-medium data of Real-time Obtaining is supplied to described wireless communication module and carries out multimedia communication, reaches object of the present invention.
Wherein, preferably, described wireless communication module specifically comprises:
WiFi communication module, to be prestored by the request that Wireless Fidelity WiFi communication network sends or the multimedia data request of described multi-medium data of Real-time Obtaining for receiving described wireless terminal, afterwards described multi-medium data being sent to described wireless terminal by described WiFi communication network.
Now, processing module is specially and will prestores or the first multi-medium data of Real-time Obtaining is supplied to described wireless communication module and carries out multimedia communication.
Illustrate as follows to the detailed process of wireless terminal requests multi-medium data.
< example 1>
As shown in Figure 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 by WiFi communication module is sent to processing module;
Step 3, processing module reads corresponding multi-medium data from the multi-medium data prestored, here multi-medium data is stored in advance in external memory solid-state hard disk SSD, or Real-time Obtaining being buffered in random access storage device RAM 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, preferably, described wireless communication module specifically also comprises:
Cellular communication module, for receiving the modify instruction carrying renewal multi-medium data that described wireless terminal is sent by wireless cellular communication network;
Described processing module is specially according to described modify instruction, to prestore or the multi-medium data of Real-time Obtaining is modified described.
Here wireless cellular communication network is 2G, 3G or 4G network.And the data that will revise of modify instruction instruction are not limited to described multi-medium data, can also be to prestoring or other data of Real-time Obtaining or the amendment of file.Preferably, can be upgraded the software on described multimedia server by the keeper of described wireless multimedia server, now modify instruction is specially the instruction of more new data or file, keeper can pass through cellular communication module with remote computer, transmission carries the modify instruction of more new data to processing module, processing module, according to this modify instruction, is modified to other data prestored or file; When the data that will revise or file less time, can by can coverage in, by described portable terminal to other data of the storage of described multimedia server or file being modified of WiFi communication module of keeper's taking portable terminal to described multimedia server.
In addition, the keeper of wireless multimedia server also can send by above-mentioned WiFi communication module the modify instruction carrying more new data, and then revises the multi-medium data, other data or the file that prestore.
Described cellular communication module can also be used for receiving the control command that described wireless terminal or remote computer are sent by described wireless cellular communication network; Then by processing module, described control command is sent to the control module of described multimedia server, by control module driving external equipment or according to described control command Direct driver external equipment.
In addition, the data of described processing module collection, acquisition or generation can also be sent to remote computer by described wireless cellular communication network by cellular communication module, are convenient to keeper or other data analyst carry out next step data analysis according to the data gathering, obtain or produce.
Illustrate as follows to the detailed process of administrator request amendment multi-medium data or other data.
< example 2>
As shown in Figure 3, the process that keeper manages by WiFi network multi-medium data or other data that described server prestores is:
Step 0, long-distance controlling multimedia order and data are packaged as the modify instruction carrying more new data by keeper, are temporarily stored in remote server;
Step 0a, with step 0 concurrently, the direct or indirect operate wireless terminal of keeper, by control multi-media command and data be packaged as the modify instruction carrying more new data, be temporarily stored in wireless terminal;
Step 1a, the long-distance controlling multimedia order that WiFi communication module is submitted to by remote server by WiFi network receiving management person and data;
Step 0b, with step 1a concurrently, the control multi-media command that WiFi communication module is submitted to by wireless terminal by WiFi network receiving management person and data;
Step 1b, the long-distance controlling multimedia order that keeper submits to by WiFi communication module and data retransmission are to processing module;
Step 3, processing module revises according to the control command received and data the multi-medium data or other data that prestore, and multi-medium data here or other data in advance are stored in random access storage device RAM or in external memory solid-state hard disk SSD.
Certainly, keeper also can manage by wireless cellular network multi-medium data or other data that described server prestores, and detailed process is:
Step 0, long-distance controlling multimedia order and data are packaged as the modify instruction carrying more new data by keeper, are temporarily stored in remote server;
Step 2a, cellular communication module passes through long-distance controlling multimedia order and the data of wireless cellular network receiving management person submission, the preferred 3G network of wireless cellular network here;
Step 2b, the long-distance controlling multimedia order that keeper submits to by cellular communication module and data retransmission are to processing module;
Step 3, processing module revises according to the control command received and data the multi-medium data or other data that prestore, and multi-medium data here or other data in advance are stored in random access storage device RAM or in external memory solid-state hard disk SSD.
Wherein, preferably, the embodiment of the present invention can also identify by radio frequency label, holder working application, and namely described wireless communication module specifically also comprises:
Radio frequency identification module, for passing through radio signals recognition radio frequency label information;
Described processing module is specially and stores described RFID tag information, and when described wireless terminal carries out described RFID tag information request by described WiFi communication module or described cellular communication module, read described RFID tag information, make described WiFi communication module or described cellular communication module that described RFID tag information is sent to described wireless terminal, remote computer or other smart machine etc.
The processing procedure of radio frequency identification label is described in detail as follows.
As shown in Figure 4, first want reading rfid tags information, can by following two kinds of modes:
The radio frequency identification module that < mode one > is provided by the embodiment of the present invention and RFID antenna reading rfid tags information, specifically comprise:
Step 1a, RFID antenna activates RFID tag, and RFID tag is to RFID antenna emitting radio frequency signal;
Step 1b, radio frequency identification module obtains radio-frequency (RF) identification radiofrequency signal by RFID antenna, and radio frequency identification signal carries out demodulation and decoding, obtains RFID tag information;
Step 1c, RFID tag data information is sent to processing module by radio frequency identification module.
Certainly, when carrying out radio-frequency (RF) identification, radio frequency identification module not necessarily, also can directly obtain RFID tag information by external frequency read/write, as follows.
< mode two >, by external radio-frequency identification reader/writer and RFID antenna reading rfid tags information, specifically comprises:
Step 2a, external radio frequency identification reader antenna activates RFID tag, and RFID tag is to radio frequency identification reader antenna emitting radio frequency signal;
Step 2b, external radio-frequency identification reader/writer obtains radiofrequency signal, and radio frequency signal carries out demodulation and decoding, obtains RFID tag information, and exports RFID label tag data message to processing module.
After reading rfid tags information, store RFID tag information further by processing module:
Step 3, the RFID tag data information that processing module storage receives, is specially in write random access storage device RAM or in the database file of solid-state hard disk SSD here.
When wireless terminal carries out described RFID tag information request by described WiFi communication module, specifically comprise:
Step 4a, RFID tag information is sent to WiFi communication module by processing module;
Step 4b, RFID tag information is sent to wireless terminal (or remote computer, other smart machine etc.) by WiFi communication module.
When wireless terminal carries out described RFID tag information request by described cellular communication module, specifically comprise:
Step 5a, the RFID tag information received is sent to cellular communication module by processing module, the preferred 3G communication network of wireless cellular communication network here;
Step 5b, RFID tag data information is sent to wireless terminal (or remote computer, other smart machine etc.) by cellular communication module.
The embodiment of the present invention achieves radio frequency label by said process and carries out identifying, store and transmitting, holder working application.Embody rule scene illustrates as follows.
< example 3>
When this wireless multimedia server is applied to train environment, using the work card of attendant as RFID tag, railway carriage position, attendant place etc. can be determined by this multimedia server.
< example 4>
The radio-frequency (RF) tag that cargo container or parcel are pasted or associated can also be identified, by the details of goods in this multimedia server determination cargo container or parcel.
The application scenarios of the apparatus for processing multimedia data holder working application that the embodiment of the present invention provides is varied, does not enumerate at this.
Preferably, described device also comprises:
Locating module, for the framing signal according to navigation satellite, obtains described server selection information;
Described processing module is specially and stores described locating information, and when described wireless terminal positions information request by described WiFi communication module or described cellular communication module, read described locating information, make described WiFi communication module or described cellular communication module by described locating information to described wireless terminal remote computer or other smart machine etc.
By receiving one or more navigation satellite framing signals of GPS of America navigation satellite, Chinese Beidou navigation satellite, Russian GLONASS navigation satellite three kinds, determine the locating information of described server, further, described locating information is stored by processing module, when described wireless terminal positions information request by described WiFi communication module or described cellular communication module, obtain described locating information, make described WiFi communication module or described cellular communication module by described locating information to described wireless terminal; Certainly, also according to application demand, by processing module, locating information can be sent to other terminal or server by described wireless communication unit or cellular communication subelement, comprise remote computer, other smart machine etc.
The process of localization process is described in detail as follows.
As shown in Figure 5, first to locating information be obtained, can by following two kinds of modes:
The locating module that < mode one > is provided by the embodiment of the present invention obtains locating information, specifically comprises:
Step 1a, locating module obtains navigation satellite framing signal by antenna, here preferred big-dipper satellite, and carries out demodulation and calculating to big-dipper satellite framing signal, obtains locating information;
Step 1b, locating information is sent to processing module by locating module.
Certainly, when positioning, locating module not necessarily, also directly can obtain locating information by external locating terminal, as follows.
< mode two > obtains locating information by external locating terminal, specifically comprises:
Step 2a, external locating terminal obtains navigation satellite framing signal by antenna, and preferred big-dipper satellite, carries out demodulation and calculating to big-dipper satellite framing signal here, obtains locating information;
Step 2b, positional information is sent to processing module by communication interface (such as serial ports) by external locating terminal.
After obtaining locating information, by the further store location information of processing module:
Step 3, the locating information that processing module storage receives, is specially in write random access storage device RAM or in the database file of solid-state hard disk SSD here.
When wireless terminal carries out described location information requests by described WiFi communication module, specifically comprise:
Step 4a, locating information is sent to WiFi communication module by processing module;
Step 4b, locating information is sent to wireless terminal (or remote computer, other smart machine) by WiFi communication module.
When wireless terminal carries out described location information requests by described cellular communication module, specifically comprise:
Step 5a, the locating information received is sent to cellular communication module by processing module, the preferred 3G communication network of wireless cellular communication network here;
Step 5b, locating information is sent to wireless terminal (or remote computer, other smart machine etc.) by cellular communication module.
The embodiment of the present invention achieves identification to locating information, storage and transmission by said process, and embody rule scene illustrates as follows.
< example 5>
When this wireless multimedia server is applied to train environment, can determine the current position of train by locating module, railway dispatching personnel, after specify that the position of this train, can carry out the rational management of train.
The application scenarios of the apparatus for processing multimedia data holder working application that the embodiment of the present invention provides is varied, does not enumerate at this.
Preferably, described device also comprises:
Sensor processing module, for receiving the ambient signal of described server external environment condition by transducer;
Described processing unit is specially and stores described ambient signal, and when described wireless terminal carries out ambient signal request by described WiFi communication module or described cellular communication module, read described ambient signal, by described WiFi communication module or described cellular communication module, described ambient signal is sent to described wireless terminal (or remote computer, other smart machine etc.).
The function of sensor processing module is the original data signal in reception environment, carry out changing and process, produce ambient signal, and the ambient signal of generation is sent to processing unit, further, described ambient signal is stored by processing module, when described wireless terminal carries out ambient signal request by described WiFi communication module or described cellular communication module, obtain described ambient signal, make described WiFi communication module or described cellular communication module that described ambient signal is delivered to described wireless terminal, certainly, also can according to the request of wireless terminal, by processing module, locating information is sent to other terminal or server by described wireless communication unit or cellular communication subelement, comprise remote computer, other smart machine etc.
Preferably, described sensor processing module is video data processing module, real-time multimedia video data is gathered by camera or web camera, and by described WiFi communication module or described cellular communication module, described real-time multimedia video data is sent to wireless terminal, other terminal or server, comprise remote computer, other smart machine etc.That is, the apparatus for processing multimedia data that the embodiment of the present invention provides can not only provide for wireless terminal the multi-medium data prestored, and can also provide real-time multimedia or other data.
The processing procedure of multimedia video data is described in detail as follows.
As shown in Figure 6, first will gather video data, the video data collected preferably, H.264 specification should be met, if when not meeting described specification, the video data collected is compressed and conversion process, generate the video data meeting H.264 specification, acquisition mode has following two kinds:
< mode one > is by camera collection video data.
If camera itself cannot produce the video data meeting H.264 specification, then this process is:
Step 1a, the video data collected is inputed to sensor processing module by camera, here sensor processing module is specially video sensor processing module, video sensor data processing module is compressed and conversion process the video data collected, and generates the video data meeting H.264 specification;
Step 1b, video sensor data processing module exports the video data meeting H.264 specification to processing module.
If camera itself can produce the video data meeting H.264 specification, then this process is:
Step 2, camera itself produces the video data meeting H.264 specification, and exports the H.264 video data collected to processing module.
< mode two > gathers video data by web camera.
If web camera itself cannot produce the video data meeting H.264 specification, then this process is:
Step 3a, the video data collected is sent to WiFi communication module by web camera;
Step 3b, the video data collected is sent to video sensor processing module by WiFi communication module, and video sensor processing module is compressed and conversion process the video data collected, and generates the video data meeting H.264 specification;
With step 1b, video sensor processing module exports the video data meeting H.264 specification to processing module.
If web camera itself can produce the video data meeting H.264 specification, then this process is:
Step 3a, web camera itself produces the video data meeting H.264 specification, and the video data meeting H.264 specification is sent to WiFi communication module;
Step 3c, WiFi communication module exports the video data meeting H.264 specification to processing module.
After obtaining video data, by the further buffer memory of processing module or stored video data:
Step 4, the video data that processing module storage receives, is specially in write random access storage device RAM or in the database file of solid-state hard disk SSD here.
When wireless terminal carries out described real time video data request by described WiFi communication module, specifically comprise:
Step 5a, real time video data is sent to WiFi communication module by processing module;
Step 5b, real time video data is sent to wireless terminal (or remote computer, other smart machine) by WiFi communication module.
When wireless terminal carries out described real time video data request by described cellular communication module, specifically comprise:
Step 6a, real time video data is sent to cellular communication module by processing module, the preferred 3G communication network of wireless cellular communication network here;
Step 6b, real time video data is sent to wireless terminal (or remote computer, other smart machine etc.) by cellular communication module.
Preferably, described device also comprises:
Control module, generates control signal for the instruction sent according to described processing module, and drives external equipment by described control signal.
Here the preferred alarm of external equipment.
The ambient signal obtained according to gyroscope and acceleration transducer, temperature sensor below generates control signal, and drives external alert device to be example by described control signal, describes said process in detail.
As shown in Figure 7, motion state data are obtained by gyroscope and acceleration sensor module:
Step 1, acceleration sensor module, by the induction of diagonal angle velocity and acceleration physical quantity, calculates the motion state data such as attitude, angle of inclination, the direction of motion (comprising the change of motion state), 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, by the induction to temperature, calculates external temperature data, and external temperature data is sent to processing module by serial ports;
Then stored by processing module or buffered motion status data or external temperature data:
Step 3, the motion state data received or external temperature data write are stored in the database file in random access storage device RAM or in solid-state hard disk SSD by processing module.
Reported to the police by control module again:
Step 4a, alarm command is sent to control module by processing module;
Step 4b, control module change export the current value of control signal, magnitude of voltage or current value and magnitude of voltage combination, drive the warning of external alert device.
By WiFi communication module transfer motion state data or external temperature data:
Step 5a, the motion state data received or external temperature data are sent to WiFi communication module by processing module;
Step 5b, motion state data or external temperature data are sent to wireless terminal or other smart machine by WiFi communication module.
By cellular communication module transmitting moving status data or external temperature data:
Step 6a, the motion state data received or external temperature data are sent to cellular communication module by processing module, are preferably 3G communication module here;
Motion state data or external temperature data are sent to remote computer or other smart machine by step 6b, 3G communication module.
The instruction that the embodiment of the present invention sends according to processing module generates control signal, and drives external equipment warning to improve fail safe by described control signal.Illustrate as follows.
< example 6>
When this wireless multimedia server is applied to train environment, described wireless multimedia server can obtain the direction, angle of inclination etc. of current train operation by gyroscope and acceleration transducer, and judge whether this train operationally exists the security risks such as overturning accordingly, when there is security risk, generate control signal according to the instruction that processing unit sends, drive external alert device to report to the police, prompting driver, further, the fail safe of this train operation is promoted.
In addition, in embodiments of the present invention, additionally provide a kind of functional entity of apparatus for processing multimedia data, as shown in Figure 8, comprising:
Power supply, be used for receiving external power source, and external power source is converted to suitable electric current and voltage specification, for other modules with power of server apparatus is supplied, power supply, is connected with wire by external power source interface with extraneous, power supply is connected with other module of server apparatus by the printed circuit wire on host circuit board or discrete wire, electric current flows to power supply from outside, by the conversion of power supply, flows to other module of server apparatus;
Processing module, for operation system and software, control the operation of other modules all, and carry out exchanges data with other module, processing module is connected to host circuit board by self chip pin, and then is directly or indirectly connected with other module, the input signal cable of processing module, be connected to the output signal line of other module, the output signal line of processing module, be connected to the input signal cable of other module;
WiFi communication module, for realizing physical layer and the partial data link layer functionality of WLAN, WiFi communication module passes through Ethernet interface, Mini pci interface, Mini PCI-E interface, or USB(UniversalSerial Bus) interface is directly or indirectly connected with processing module, USB interface described in the embodiment of the present invention, refer to USB1.0 interface, USB2.0 interface, or USB3.0 interface, described Ethernet interface, refer to and meet IEEE802.3 series, communication speed is 10Mbps, 100Mbps, or the Ethernet interface of 1Gbps, fastethernet interface, or gigabit ethernet interface, WiFi communication module is connected with exterior antenna by antennal interface,
Cellular communication module, for realizing 2G/3G/4G radio honeycomb communication, cellular communication module is directly or indirectly connected with processing module by Ethernet interface, Mini pci interface, Mini PCI-E interface or USB interface, cellular communication module is connected with exterior antenna by antennal interface, and cellular communication module is optional module;
Locating module, for receiving GPS of America navigation satellite, China's Beidou navigation satellite, one or more navigation satellite framing signals of Russian GLONASS navigation satellite three kinds, calculate positional information and export positional information to processing module, locating module passes through serial ports, or USB interface is directly or indirectly connected with processing module, serial ports described in the embodiment of the present invention, refer to and meet UART(Universal Asynchronous Receiver Transmitter), RS-232, RS-422, or the communication interface of RS-485 standard, locating module is connected with exterior antenna by antennal interface, locating module is optional module,
Radio frequency identification module, RFID label tag is activated for emitting radio frequency signal, and user profile is read from RFID label tag, also data can be write in RFID label tag and store, radio frequency identification module is by serial ports, SPI(Serial Peripheral Interface) interface, USB interface or SD card interface be directly or indirectly connected with processing module, radio frequency identification module is connected with exterior antenna by antennal interface, and radio frequency identification module is optional module;
Memory module module, for storage system and user data, memory module can be mechanical hard disk or SSD(Solid State Drive) solid state hard disc, pass through ide interface, Mini PCI-E interface, e-SATA interface, SATA2 interface, or SATA3 interface is directly or indirectly connected with processing module, memory module also can be that flash chip (comprises nand flash memory chip, NOR flash memory chip, eMMC chip), USB storage (also becoming USB flash disk), SD card, Micro SD card, directly or indirectly be connected with processing module by the corresponding interface, memory module also can be the combination of one or more parts above,
Sensor processing module, for the original data signal in reception environment, carries out changing and processes, produce digital signal, and export the digital signal of generation to processing module, the original data signal described in the embodiment of the present invention, comprise pressure signal (comprising pressure signal), tension signal (comprising pulling force signal), torsional forces signal, frictional force signal, temperature signal, moisture signal, luminance signal, intensity of illumination signal, transmitted intensity signal (comprising uitraviolet intensity signal), intensity of sound signal (comprising noise intensity signal), vibration signal, rate signal, acceleration signal, angular velocity signal, vision signal, audio signal, pollutant levels signal, chemical substance concentration signal (comprising other concentration of narmful substance signal), shock strength, gas flow rate signal (comprising gas instantaneous flow rate signal), wind velocity signal, wind intensity signal, flow rate of liquid signal (comprising transient liquid flow signal), liquid depth signal (comprising liquid level signal), altitude signal, electromagnetic field signal (comprising radiofrequency signal) etc., sensor processing module passes through serial ports, blue tooth interface, USB interface, or universal input output (GPIO) interface is directly or indirectly connected with processing module, sensing data processing module is optional module,
Control module, for the control command that receiving processing module sends, is converted to suitable control signal by it, the such as combination of specific magnitude of voltage and current value, and export external interface to, to control external equipment or to act on external environment condition, control module is optional module.
Above-mentioned functions entity can by cordless communication network for wireless terminal provides multimedia service, and the multi-medium data provided for wireless terminal not only comprises the multi-medium data prestored, and can also comprise real-time multimedia or other data; Meanwhile, by optional sensor processing unit holder working application; The locating information of server can be provided according to satellite fix; Transducer can be utilized to obtain ambient signal, and drive external equipment with described ambient signal, promote fail safe.
The embodiment of the present invention additionally provides a kind of multimedia data processing method, and for wireless multimedia server, described method as shown in Figure 9, comprising:
Step 91, carries out multimedia communication with wireless terminal by cordless communication network;
Step 92, prestores or the multi-medium data of Real-time Obtaining for described multimedia communication provides.
Above-mentioned multimedia data processing method, wherein, describedly carry out multimedia communication with wireless terminal by cordless communication network and specifically also comprise:
Receive the modify instruction carrying renewal multi-medium data that described wireless terminal is sent by wireless cellular communication network;
Describedly to prestore or the multi-medium data of Real-time Obtaining is specially according to described modify instruction for described multimedia communication provides, to prestore or the multi-medium data of Real-time Obtaining is modified described.
Above-mentioned multimedia data processing method, wherein, describedly carry out multimedia communication with wireless terminal by cordless communication network and specifically also comprise:
By radio signals recognition radio frequency label information;
Describedly to prestore or the multi-medium data of Real-time Obtaining is specially and stores described RFID tag information for described multimedia communication provides, and when described wireless terminal carries out described RFID tag information request by described WiFi communication network or described wireless cellular communication network, read described RFID tag information, make described server, by described WiFi communication network or described wireless cellular communication network, described RFID tag information is sent to described wireless terminal.
Above-mentioned multimedia data processing method, wherein, described method also comprises:
According to the framing signal of navigation satellite, obtain described server selection information;
Describedly to prestore or the multi-medium data of Real-time Obtaining is specially and stores described locating information for described multimedia communication provides, and when described wireless terminal positions information request by described WiFi communication network or described wireless cellular communication network, read described locating information, make described server by described WiFi communication network or described wireless cellular communication network by described locating information to described wireless terminal.
Above-mentioned multimedia data processing method, wherein, described method also comprises:
The ambient signal of described server external environment condition is received by transducer;
Describedly to prestore or the multi-medium data of Real-time Obtaining is specially and stores described ambient signal for described multimedia communication provides, and when described wireless terminal carries out ambient signal request by described WiFi communication module or described cellular communication module, read described ambient signal, make described server, by described WiFi communication network or described wireless cellular communication network, described ambient signal is sent to described wireless terminal.
Above-mentioned multimedia data processing method, wherein, described method also comprises:
Generate control signal according to the instruction that described processing module sends, and drive external equipment by described control signal.
Present invention also offers a kind of wireless multimedia server, described server comprises the apparatus for processing multimedia data described in above-mentioned any one.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (15)
1. an apparatus for processing multimedia data, for wireless multimedia server, is characterized in that, described device comprises:
Wireless communication module, for carrying out multimedia communication with wireless terminal by cordless communication network;
Processing module, carries out multimedia communication for the multi-medium data prestored is supplied to described wireless communication module.
2. apparatus for processing multimedia data as claimed in claim 1, it is characterized in that, described wireless communication module specifically comprises:
WiFi communication module, to be prestored by the request that Wireless Fidelity WiFi communication network sends or the multimedia data request of described multi-medium data of Real-time Obtaining for receiving described wireless terminal, afterwards described multi-medium data being sent to described wireless terminal by described WiFi communication network.
3. apparatus for processing multimedia data as claimed in claim 2, it is characterized in that, described wireless communication module specifically also comprises:
Cellular communication module, for receiving the modify instruction carrying renewal multi-medium data that described wireless terminal is sent by wireless cellular communication network;
Described processing module is specially according to described modify instruction, to prestore or the multi-medium data of Real-time Obtaining is modified described.
4. apparatus for processing multimedia data as claimed in claim 3, it is characterized in that, described wireless communication module specifically also comprises:
Radio frequency identification module, for passing through radio signals recognition radio frequency label information;
Described processing module is specially and stores described RFID tag information, and when described wireless terminal carries out described RFID tag information request by described WiFi communication module or described cellular communication module, read described RFID tag information, make described WiFi communication module or described cellular communication module that described RFID tag information is sent to described wireless terminal.
5. apparatus for processing multimedia data as claimed in claim 1, it is characterized in that, described device also comprises:
Locating module, for the framing signal according to navigation satellite, obtains described server selection information;
Described processing module is specially and stores described locating information, and when described wireless terminal positions information request by described WiFi communication module or described cellular communication module, read described locating information, make described WiFi communication module or described cellular communication module by described locating information to described wireless terminal.
6. apparatus for processing multimedia data as claimed in claim 1, it is characterized in that, described device also comprises:
Sensor processing module, for receiving the ambient signal of described server external environment condition by transducer;
Described processing unit is specially and stores described ambient signal, and when described wireless terminal carries out ambient signal request by described WiFi communication module or described cellular communication module, read described ambient signal, by described WiFi communication module or described cellular communication module, described ambient signal is sent to described wireless terminal.
7. apparatus for processing multimedia data as claimed in claim 1, it is characterized in that, described device also comprises:
Control module, generates control signal for the instruction sent according to described processing module, and drives external equipment by described control signal.
8. a multimedia data processing method, for wireless multimedia server, is characterized in that, described method comprises:
Multimedia communication is carried out by cordless communication network with wireless terminal;
Prestore or the multi-medium data of Real-time Obtaining for described multimedia communication provides.
9. multimedia data processing method as claimed in claim 8, is characterized in that, describedly carries out multimedia communication with wireless terminal by cordless communication network and is specially:
Receive the multimedia data request of request first multi-medium data that described wireless terminal is sent by Wireless Fidelity WiFi communication network, afterwards described first multi-medium data is sent to described wireless terminal by described WiFi communication network.
10. multimedia data processing method as claimed in claim 9, is characterized in that, describedly carries out multimedia communication with wireless terminal by cordless communication network and specifically also comprises:
Receive the modify instruction carrying renewal multi-medium data that described wireless terminal is sent by wireless cellular communication network;
Describedly to prestore or the multi-medium data of Real-time Obtaining is specially according to described modify instruction for described multimedia communication provides, to prestore or the multi-medium data of Real-time Obtaining is modified described.
11. multimedia data processing method as claimed in claim 10, is characterized in that, describedly carry out multimedia communication with wireless terminal by cordless communication network and specifically also comprise:
By radio signals recognition radio frequency label information;
Describedly to prestore or the multi-medium data of Real-time Obtaining is specially and stores described RFID tag information for described multimedia communication provides, and when described wireless terminal carries out described RFID tag information request by described WiFi communication network or described wireless cellular communication network, read described RFID tag information, make described server, by described WiFi communication network or described wireless cellular communication network, described RFID tag information is sent to described wireless terminal.
12. multimedia data processing method as claimed in claim 9, it is characterized in that, described method also comprises:
According to the framing signal of navigation satellite, obtain described server selection information;
Describedly to prestore or the multi-medium data of Real-time Obtaining is specially and stores described locating information for described multimedia communication provides, and when described wireless terminal positions information request by described WiFi communication network or described wireless cellular communication network, read described locating information, make described server by described WiFi communication network or described wireless cellular communication network by described locating information to described wireless terminal.
13. multimedia data processing method as claimed in claim 9, it is characterized in that, described method also comprises:
The ambient signal of described server external environment condition is received by transducer;
Describedly to prestore or the multi-medium data of Real-time Obtaining is specially and stores described ambient signal for described multimedia communication provides, and when described wireless terminal carries out ambient signal request by described WiFi communication module or described cellular communication module, read described ambient signal, make described server, by described WiFi communication network or described wireless cellular communication network, described ambient signal is sent to described wireless terminal.
14. multimedia data processing method as claimed in claim 9, it is characterized in that, described method also comprises:
Generate control signal according to the instruction that described processing module sends, and drive external equipment by described control signal.
15. 1 kinds of wireless multimedia server, is characterized in that, described server comprises the apparatus for processing multimedia data described in any one of claim 1 to 7.
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