CN110086646A - Embedded satellite meteorological ocean data broadcast reception application system and method based on FPGA - Google Patents
Embedded satellite meteorological ocean data broadcast reception application system and method based on FPGA Download PDFInfo
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- CN110086646A CN110086646A CN201910180929.XA CN201910180929A CN110086646A CN 110086646 A CN110086646 A CN 110086646A CN 201910180929 A CN201910180929 A CN 201910180929A CN 110086646 A CN110086646 A CN 110086646A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
- G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
Abstract
The present invention relates to satellite meteorolo-gy datacast transmissions technical fields, it is particularly based on the embedded satellite meteorological ocean data broadcast reception application system and method for FPGA, its core is the embedded technology based on FPGA, using DVB data broadcast channel, customizes DVB-S modulator and DVB-S receiver.The present invention is by being packaged into dvb transport stream (TS stream) for the data packet of Ethernet with the format of DVB-DATA, it gives modulator to be modulated, and has the function of certain QoS service quality management, IP address filtering, the statistic multiplexing for distinguishing priority service and satellite bandwidth.The design forward error correction (FEC) of broadcasting-satellite channel feature is the key that improve broadcast system data transmission quality, which optimizes the fountain codes of linear complexity for the feature reconstruction of meteorological data, improves the integrality of information transmission；Demand of the DVB-S receiver of proposition according to not user and application background, a plurality of types of data service terminals of autonomous controllable, the highly reliable, low-power consumption of design formation and maintainability by force.
Description
Technical field
The present invention relates to process meteorological data technical fields, specially the embedded satellite meteorological ocean data based on FPGA
Broadcast reception application system and method.
Background technique
It is pre- to reinforce maritime meteorology monitoring according to the requirement of China Meteorological Administration's South Sea maritime meteorology business development ad hoc planning
Alert prediction and Weather-service, meteorological department, China coast each province just gradually increase maritime meteorological observation equipment build-up.
Oil platform automatic weather station observational network oceanographic buoy weather station net, marine ships automatic meteorological have been preliminarily formed at present
It stands observational network and island automatic weather station observational network.The net observation of these stations is equipped far from bank, and most of observation device is away from seashore
Other than 100km, especially oil platform automatic weather station is all on the ocean outside 200km.The real-time sight of these meteorological equipments
Meteorological data is surveyed to be no longer able to transfer back in time by conventional communication mode (telephone, VHF/UHF, broadband network, GPRS)
Weather information handles center on the bank, puts forward new requirements in data transfer communications means.There was only satellite communication ability at present
Ocean every nook and cranny is enough covered, but the speed of data processing is low, it is deficient that meteorological data exchanges communication mode.In consideration of it, I
Propose embedded satellite meteorological ocean data broadcast reception application system and method based on FPGA.
Summary of the invention
The purpose of the present invention is to provide the embedded satellite meteorological ocean data broadcast reception application systems based on FPGA
And method, to solve to propose that the speed of data processing is low in above-mentioned background technique, meteorological data is exchanged to communication mode scarcity
The problem of.
To achieve the above object, the invention provides the following technical scheme:
The system of embedded satellite meteorological ocean data broadcast reception application based on FPGA, including meteorological data module,
Embedded receiving module, LAN module, embedded microserver cluster module and broadcast data processing platform.
Preferably, temperature real measured data, wind speed and direction real measured data and spoke that the meteorological data module will test
Illumination real measured data is collected arrangement.
Preferably, presentation carrier of the embedded receiving module as media services, accesses satellite meteorolo-gy for user
Oceanographic data enjoys audio-video frequency media service and provides the mode of man-machine communication.
Preferably, the LAN module is used for meteorological data module, embedded receiving module, embedded microserver
Data transmission between cluster module and broadcast data processing platform provides network support.
Preferably, the embedded microserver cluster module includes several embedded microservers, by several insertions
Server decline by high-speed traffic link connection, extension set processing is carried out to transmitting satellite meteorological ocean data, promotes system
The service ability of system.
Preferably, the broadcast data processing platform includes that several data receivers divide platform, it is embedded microserver
Cluster module provides data and supports, requests service and respective request.
Preferably, the meteorological data module, embedded receiving module, LAN module, embedded microserver collection
Group's module and broadcast data processing platform are sequentially connected.
Preferably, being separately installed with storage system modules, each storage system in each embedded microserver
Module passes through LAN module information sharing.
The method of embedded satellite meteorological ocean data broadcast reception application based on FPGA, includes the following steps:
S1: temperature real measured data, wind speed and direction real measured data and the irradiation level that will test by meteorological data module are real
Measurement information is collected arrangement；
S2: the various meteorological ocean data informations for the actual measurement collected in S1 are connect by satellite data transmission to embedded
It receives in module；
S3: the S2 Satellite Data information received is transmitted to embedded microserver cluster module by LAN module
In, data information is directed into internal embedded microserver by embedded microserver cluster module carries out extension set processing；
S4: treated that data information is separately stored in the storage system modules of itself for each embedded microserver；
S5: embedded microserver cluster module integrates the data that each embedded microserver in S4 stores
It arranges and classifies；
S6: each data receiver in broadcast data processing platform divides platform first to embedded microserver cluster module
Request service or respond request are issued, embedded microserver cluster module is interior to each data in broadcast data processing platform
Reception divides platform to provide meteorological data support.
Preferably, the storage system modules are stored using flash memory device, the flash memory device includes that flash memory is situated between
Matter and flash controller two parts can connect on each channel with the encapsulation of much channel communication tissue flash memory particle inside flash memory device
Multiple particle encapsulation are connect, share transmission channel between more particle encapsulation, but instruction can be independently executed；Each internal packet of particle encapsulation
Containing two or more flash memory particles, each particle can be executed instruction by independently choosing.
Preferably, embedded microserver described in every two provides the network branch of data transmission by LAN module
It holds, when one of them embedded microserver in the embedded microserver cluster module breaks down, what is do not worked is standby
The embedded microserver of part will automatically take over the work of the embedded microserver of failure.
Compared with prior art, the beneficial effects of the present invention are:
1, passing through based on the embedded satellite meteorological ocean data broadcast reception application system and method for FPGA will be each
Carried out data transmission between data module by local area network, accelerate the efficiency of processing and the transmission of data, to improve information biography
The efficiency passed will be arranged embedded microserver using clustered software and several servers connected into an entirety, forms one
Comparable to the computer system of large and medium-sized supercomputer, data run speed, the satellite meteorolo-gy oceanographic data broadcast reception are improved
Cloud computing framework is applied to server cluster by the system of application, and by the limited physical configuration of server, virtual, Yun Hua, reduction are taken
The quantity of business device, increases amount of storage, to increase substantially the efficiency of server process data.
2, it is deposited based on the embedded satellite meteorological ocean data broadcast reception application system and method for FPGA using flash memory
In terms of the reliability of storage system and utilization flash memory building low energy consumption computer system or data center, pass through the high-performance of flash memory
To reduce storage size, used using flash cache data with less disk or directly using in flash memory reconstruct Energy-saving Data
The heart directly carries out quick storage to satellite meteorolo-gy oceanographic data in the way of flash memory reconstruct Energy-saving Data center, passes through insertion
The server cluster module that declines divides platform to carry out data support respectively multiple data, is asked with solving data exchange ways scarcity volume
Topic, while the embedded microserver of every two provides the network support of data transmission by LAN module, when insertion declines
One of them embedded microserver in server cluster module breaks down, and the embedded microserver of the backup not worked will
The work of the embedded microserver of failure is automatically taken over, data exchange is more convenient.
Detailed description of the invention
Fig. 1 is system schematic of the invention；
Fig. 2 is the basic composition schematic diagram of satellite meteorolo-gy information broadcast system of the invention
Fig. 3 is that main website of the invention broadcasts data flow diagram；
Fig. 4 is that receiving station of the invention receives data flow diagram；
Fig. 5 is broadcast data processing platform schematic diagram of the invention；
Fig. 6 is satellite meteorolo-gy oceanographic data broadcast system flow diagram of the invention；
Fig. 7 is reception terminal architecture schematic diagram of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
The system of embedded satellite meteorological ocean data broadcast reception application based on FPGA, as shown in Figure 1, including meteorology
Data module, embedded receiving module, LAN module, embedded microserver cluster module and broadcast data processing are flat
Platform.
Temperature real measured data, wind speed and direction real measured data and the irradiation level real measured data that meteorological data module will test into
Row is compiled；Presentation carrier of the embedded receiving module as media services accesses satellite meteorolo-gy oceanographic data for user, enjoys
The mode of man-machine communication is provided by audio-video frequency media service；LAN module for meteorological data module, embedded receiving module,
Data transmission between embedded microserver cluster module and broadcast data processing platform provides network support；Insertion declines
Server cluster module includes several embedded microservers, and several embedded microservers are passed through high-speed traffic link connection
Get up, extension set processing, the service ability of lifting system are carried out to transmitting satellite meteorological ocean data；
Broadcast data processing platform includes that several data receivers divide platform, provides number for embedded microserver cluster module
According to support, request service and respective request, meteorological data module, embedded receiving module, LAN module, it is embedded in incognito
Business device cluster module and broadcast data processing platform are sequentially connected.Storage system is separately installed in each embedded microserver
System module, each storage system modules pass through LAN module information sharing.
The system of satellite meteorolo-gy oceanographic data broadcast reception application is by will pass through local area network between each data module
Carry out data transmission, accelerate the efficiency of processing and the transmission of data, to improve the efficiency of information transmitting, setting insertion is declined
Several servers are connected into an entirety by server by utilizing clustered software, form a meter comparable to large and medium-sized supercomputer
Calculation machine system, improves data run speed, and the system of satellite meteorolo-gy oceanographic data broadcast reception application transports cloud computing framework
For server cluster, by the limited physical configuration of server, the quantity of virtual, Yun Hua, reduction server, increase amount of storage, from
And increase substantially the efficiency of server process data.
The method of embedded satellite meteorological ocean data broadcast reception application based on FPGA, includes the following steps:
S1: temperature real measured data, wind speed and direction real measured data and the irradiation level that will test by meteorological data module are real
Measurement information is collected arrangement；
S2: the various meteorological ocean data informations for the actual measurement collected in S1 are connect by satellite data transmission to embedded
It receives in module；
S3: the S2 Satellite Data information received is transmitted to embedded microserver cluster module by LAN module
In, data information is directed into internal embedded microserver by embedded microserver cluster module carries out extension set processing；
S4: treated that data information is separately stored in the storage system modules of itself for each embedded microserver；
S5: embedded microserver cluster module integrates the data that each embedded microserver in S4 stores
It arranges and classifies；
S6: each data receiver in broadcast data processing platform divides platform first to embedded microserver cluster module
Request service or respond request are issued, embedded microserver cluster module is interior to each data in broadcast data processing platform
Reception divides platform to provide meteorological data support.
Storage system modules are stored using flash memory device, and flash memory device includes flash media and flash controller two
Point, it is encapsulated inside flash memory device with much channel communication tissue flash memory particle, multiple particles can be connected on each channel and are encapsulated, more
Transmission channel is shared between grain encapsulation, but instruction can be independently executed；Internal each particle encapsulation includes two or more flash memories
Grain, each particle can be executed instruction by independently choosing.
This kind utilizes flash memory storage system based on the method that the embedded satellite meteorological ocean data broadcast reception of FPGA is applied
In terms of the reliability of system and utilization flash memory building low energy consumption computer system or data center, by the high-performance of flash memory to subtract
Few storage size is used with less disk using flash cache data or directly reconstructs Energy-saving Data center using flash memory, directly
Connect by flash memory reconstruct Energy-saving Data center in the way of to satellite meteorolo-gy oceanographic data carry out quick storage, by it is embedded in incognito
Business device cluster module divides platform to carry out data support respectively multiple data, to solve the problems, such as data exchange ways scarcity volume, together
When every two embedded microserver provide the network support of data transmission by LAN module, when embedded microserver
One of them embedded microserver in cluster module breaks down, and the embedded microserver of the backup not worked will connect automatically
The work of the embedded microserver of pipe failure, data exchange are more convenient.
Embodiment 2
As second of embodiment of the invention, broadcast data processing platform of the invention uses data broadcasting, and data are wide
The wideband data transmission system of the nerve of a covering or other independent data broadcast channels using satellite broadcasting and television broadcasting is broadcast, it is
The third broadcast technology occurred after sound radio (audio) and broadcast of images (video).
The broadcast of global satellite weather information is the important example of data broadcasting application, is developed also along with satellite communication skill
Art progress and rapidly develop, according to telecommunication satellite type is relied on, satellite meteorolo-gy information broadcast system can be mainly divided into two major classes:
Telstar broadcast system based on DVB S2 standard and based on special gas as broadcasting-satellite system.
Broadcast data processing platform in the present invention is real using the telstar repeater system based on DVB S2 standard
It is existing, as shown in Fig. 2, the system includes that main website broadcasts center, telecommunication satellite and user receiving station,
Main website framework is on the high-speed local area network of an inside, it mainly broadcasts server by file, Streaming Media is broadcast
Server, network management server and the equipment such as DVB gateway and DVB modulator composition.User receiving station can be by being inserted in
Satellite-data Receiving-card, cable data inside computer receive card or external receiver to receive the data that main website is broadcast.With
Family receiving station can be single machine receiving station, and received information is locally stored and is used for operation system；It is also possible to network type
It is online to be forwarded to local area by receiving station for received information, is received for other computers or the network equipment and processing.
DVB data broadcast channel uses satellite channel, need to use DVB-S modulator and DVB-S receiver.DVB data are wide
It is as follows to broadcast system capital equipment function:
(1) DVB modulator
The function of DVB modulator is to be modulated to MPEG-2DVB data flow in required again and again by defined modulation system
In rate, transmitted on satellite channel.
(2) IP/DVB wrapper
The basic function of IP/DVB wrapper is that the data packet of Ethernet is packaged into DVB transmission with the format of DVB-DATA
It flows (TS stream), gives modulator and be modulated.In order to realize the Optimum utilization of satellite channel and to the support of IP multimedia service,
IP/DVB wrapper system should also have certain QoS service quality management function, and IP address filtering function distinguishes priority clothes
The functions such as the statistic multiplexing of business and satellite bandwidth.
(3) platform is broadcast
Broadcast the core that platform is DVB data broadcasting.The major function for broadcasting platform includes that file is broadcast and broadcast with Streaming Media
Hair.File, which is broadcast, wants to carry out real-time broadcasting, broadcasting on schedule for file or catalogue, repeats to broadcast, and can be on satellite channel
Effectively transmit big file.Streaming Media, which broadcasts requirement, real-time broadcasting, broadcasting on schedule, multichannel while the function of broadcasting, and has higher
Graph image quality.
(4) network management and monitoring
Network management and monitoring are extremely important to big satellite broadcasting net is built.Network Management Function includes to satellite channel
Management is managed to the management in networking small station and to main website operator；Monitoring function includes respectively broadcasting to satellite channel and to main website
Send out the monitoring of the working condition of equipment and broadcast channel.
(5) DVB receiving station
The major function of DVB receiving station is that the reception permission according to as defined in main website receives file and streaming media broadcast, will be literary
Part is stored in specified directory, and stream media information is bridged on the local area network in small station.Its core equipment is DVB satellite reception
Machine receives card.
Embedded satellite meteorological ocean data broadcast reception application system and method based on FPGA
Embodiment 3
As the third embodiment of the invention, satellite meteorolo-gy oceanographic data broadcast system data streams journey of the invention includes
Main website broadcasts data flow and receiving station receives data flow.
(1) main website broadcasts data flow
Main website broadcasts data flow as shown in figure 3, the meteorological ocean resources data file of transmission refers to various types of industry
Business data file, these files transmit in binary form, can support the file of various contents, format.Main website data are located in advance
Reason program extracts business datum file from NetWare file server or shared disk array, and advises according to the division of channel catalogue
Then, file is individually positioned in specified channel catalogue；Then control is broadcast to limit according to the priority and bandwidth range of setting
System carries out statistic multiplexing, distributes for various businesses data and different broadcasts bandwidth；File, can according to data characteristic when broadcasting
To select to carry out memory compression to the file in first class catalogue or uncompressed broadcast configuration；The data broadcast are passed through application and are passed
Defeated protocol code forms transmission data packet, in an encoding process, increases redundancy according to the redundant configuration parameter in each channel.Finally,
Data packet is scrambled using dynamic, and sends the data packet ciphertext after scrambling to IPE baling press, passes through DVB-S2 satellite system
It is broadcasted to small station.
(2) main website broadcasts data flow
Receiving station receives data flow as shown in figure 4, in receiving station's system, receives satellite broadcasting letter by satellite receiver
Number, and after demodulated, demultiplexing, it is reduced to IP traffic, is then sent to reception server process；Firstly, receiving service
Device judges whether to need to handle data stream first according to the authorization conditions in small station；If be authorized to, solved
It disturbs；Then, application transport protocol-decoding handles data stream, and converts data to file fragment；During processing,
Error correction is carried out using redundancy packet；If file fragment have passed through compression processing, unzip it automatically；File is recombinated file
Segment is reassembled as data file, restores original form, and be placed in corresponding catalogue；Data file is distributed then by various businesses
Data file is pushed to different business application systems respectively.
Embodiment 4
As the 4th kind of embodiment of the invention, broadcast data processing platform is by weather information broadcast control platform, meteorology
Three functional module compositions such as information broadcast transmission platform and weather information broadcasting receiver, as shown in Figure 5.Wherein, meteorological
Information broadcast control platform is main website agency, undertakes the functions such as acquisition and tissue, message sink coding and the channel coding of information, and
Weather information broadcasting receiver is then directly facing user, undertakes the function of reception and the distribution of information.
Satellite meteorolo-gy oceanographic data broadcast system realizes information and reaches the unidirectional of receiver by satellite forwarding from main website
The architecture of transfer function, the system is as shown in Figure 6.
Due to the characteristic of the one-way transmission of broadcasting-satellite channel in the present invention, in weather information broadcast control platform
In, if the reliability and availability of data of data broadcasting are often because space is believed only with the conventional network transmission protocol
The factors such as road unstable quality are deteriorated, and are unable to satisfy the demand of routine work guarantee.From the angle of application and development, weather information is wide
It broadcasts management platform and weather information broadcasting receiver technical level directly determines the performance of entire broadcast system, be whole system
Core link.In weather information broadcast control Platform Designing, design is directed to the forward error correction of broadcasting-satellite channel feature
It (FEC) is the key that improve broadcast system data transmission quality, the fountain codes design and optimization with linear complexity is FEC
Important content；And weather information broadcasting receiver is then needed according to the demand for not having to user and application background, design forms autonomous
Controllably, highly reliable, low-power consumption and maintainable strong a plurality of types of data service terminals, meet the need of all kinds of guarantee business
It asks, embedded technology is to realize the effective means of the above target, explores and application embedded technology realizes that receiving system terminal is
The importance of lifting system availability.
Satellite data broadcasting dissemination system have natural broadcast characteristic, due to satellite channel occur packet error probability compared with
Height leads to system in addition each receiver is possibly different from different places, working environment and earth station technology index respectively
With isomerism.Therefore, industry is directed to the characteristics of one-way transmission of broadcasting-satellite channel, and packet level forward error correction volume is widely used
Code (FEC) technology solves time delay brought by high package error rate and characteristic of channel isomerism in satellite data broadcasting dissemination system
Length is grouped the problems such as successfully distribution probability is low, channel utilization is low.
RS code is a kind of forward erasure correction related with code rate of classics, error correcting code coding mode, but the coding of RS code and
Decoded complexity is larger, and error correction effect and efficiency of transmission are by very big restriction, therefore Michael Luby et al. is by visiting
Rope research, design complete a kind of random coded mode-digital fountain unrelated with code rate with linear encoding and decoding complexity
Code coding, referred to as LT code, and the LT code Jing Guo error correction precoding is Raptor code, encoding and decoding complexity further reduces.Spray
Spring code coding techniques uses random coded thought, encoder bit rate dynamically changeable, in the input of a limited number of original data packet
In the case of can produce unlimited number of coded data packet, receiving any one group, to be slightly more than original data packet total for receiving end
After several coding groups, all original data packets can be correctly recovered, are which codings but regardless of what is specifically received
Grouping.Fountain code coding/decoding time delay is small, and can guarantee that the user of arbitrary number of channels characteristic isomery can connect at any time
Enter system and completes the reception of data with very high efficiency.By the modified based on secondary goodness Distribution Algorithm of the propositions such as Zhu Hongpeng
LT code has practical application value to the channel utilization for improving satellite data broadcasting dissemination system, and is used widely.
Since Raptor coding and decoding has the characteristics that quickly and efficiently rate, the development of Raptor code is also very fast at present
Speed.Application of the Raptor code in data distributing broadcasting system, Raptor code are reliably transmitted using unidirectional UDP, this
Sample avoids the drawbacks of TCP, 7,8 times faster than TCP transmission of UDP or more on the network of bad environments, also supports to be any
The file of size provides reliable one-way transmission.Part Raptor coding and decoding methods have become communications industry data broadcasting
Agreement.
Traditional satellite receiving terminal is usually small-scale terrestrial station, can directly receive satellite using this reception system and believe
Number, territory restriction is smaller, and the weather information of available high quality, but this kind of equipment that there is volumes is big, at high cost,
It safeguards the problems such as complicated movement is poor, is unfavorable for the popularization of equipment.The Portable gas that design cost is low, small in size, performance is good as
Intelligence receiver has become development trend.
As shown in fig. 7, embedded satellite Meteorological Data Broadcast receiving system terminal architecture can be divided into core layer, answer
With layer and network and three levels of service layer, master-plan includes Embedded Hardware Platform design, Design of Software Platform, anti-electromagnetism
Package design, data distribution mode such as design at the contents.
Major design work includes following many aspects:
(1) miniaturization, portable electromagnetism interference meteorological data receiving device chassis design
For the portability for guaranteeing equipment, structure design is under the premise of guaranteeing sufficiently heat dissipation, convenient succinct installation, using height
It is same containing reception, processing, storage, the module of four hardware capabilities of backboard that integrated level, the thought for minimizing design make one group of support
When support module hot plug Portable machine box.To guarantee that enough intensity, cabinet material use high-strength aluminum alloy.
(2) embedded software system is developed:
A. the LINUX driving of the hardware interface and FPGA interface of satellite meteorolo-gy signal is completed；
B. the design that software data receives acquisition module is completed, realizes the reception of satellite meteorolo-gy data and adopting for device data
Collection；
C. the design for completing data analysis module, realizes the preliminary analysis and pretreatment of satellite data；
D. the design of software memory module is completed, and web browsing and management can be passed through.
(3) Embedded Hardware Design and optimization:
A. embedded type CPU designs, and the independent upgrade function module of raising that can be required according to system processing capacity；
B. the circuit design of the design of special FPGA high speed interface and other FPGA control logic functions is carried out；
C. selection related device is required according to military relevant criterion and carries out circuit and optimizing the layout design.
(4) embedded networking applications exploitation and optimization:
To the validation-cross of equipment and server based on embedded system, device status inquiries and report, equipment state
The agreements such as control, information re-ception state inquiry and active reporting carry out application and development and optimization, guarantee the Internet communication side of data
Formula.
It is required to hold following two key point in embedded receiver terminal design process:
(1) satellite demodulation, data broadcast reception, data buffering, number letter portable miniaturization: are completed in embedded device
The functions such as number Traffic Decomposition, meteorological data extraction, data processing, forwarded and storage embedded are set using highly integrated
It is standby to replace computer+board reception pattern, enhance portable function.
(2) it autonomous controllability: is driven in level and controllable middleware level in OS/, all source codes, no longer using passive
The WINDOWS system of code, and the embedded real-time operating system Linux for having source code is used, all codes are transparent, are in operation
System level ensure that safety.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (10)
1. the embedded satellite meteorological ocean data broadcast reception application system based on FPGA, it is characterised in that: including meteorological number
According to module, embedded receiving module, LAN module, embedded microserver cluster module and broadcast data processing platform.
2. the embedded satellite meteorological ocean data broadcast reception application system according to claim 1 based on FPGA,
It is characterized in that: temperature real measured data, wind speed and direction real measured data and the irradiation level actual measurement that the meteorological data module will test
Information is collected arrangement.
3. the embedded satellite meteorological ocean data broadcast reception application system according to claim 1 based on FPGA,
Be characterized in that: presentation carrier of the embedded receiving module as media services accesses satellite meteorolo-gy oceanographic data for user,
It enjoys audio-video frequency media service and the mode of man-machine communication is provided.
4. the embedded satellite meteorological ocean data broadcast reception application system according to claim 1 based on FPGA,
Be characterized in that: the LAN module is used for meteorological data module, embedded receiving module, embedded microserver cluster module
And the data transmission between broadcast data processing platform provides network support.
5. the embedded satellite meteorological ocean data broadcast reception application system according to claim 1 based on FPGA,
Be characterized in that: the embedded microserver cluster module includes several embedded microservers, by several embedded micro services
Device is got up by high-speed traffic link connection, carries out extension set processing, the operation of lifting system to transmitting satellite meteorological ocean data
Ability.
6. the embedded satellite meteorological ocean data broadcast reception application system according to claim 1 based on FPGA,
Be characterized in that: the broadcast data processing platform includes that several data receivers divide platform, is embedded microserver cluster module
Data are provided to support, request service and respective request.
7. the embedded satellite meteorological ocean data broadcast reception application system according to claim 6 based on FPGA,
It is characterized in that: being separately installed with storage system modules in each embedded microserver, each storage system modules pass through
LAN module information sharing.
8. a kind of method of the embedded satellite meteorological ocean data broadcast reception application based on FPGA, it is characterised in that: including
Following steps:
S1: temperature real measured data, wind speed and direction real measured data and the irradiation level actual measurement letter that will test by meteorological data module
Breath is collected arrangement；
S2: by the various meteorological ocean data informations for the actual measurement collected in S1, pass through satellite data transmission to embedded reception mould
In block；
S3: the S2 Satellite Data information received is transmitted in embedded microserver cluster module by LAN module, embedding
Data information is directed into internal embedded microserver by the server cluster module that enters to decline carries out extension set processing；
S4: treated that data information is separately stored in the storage system modules of itself for each embedded microserver；
S5: the data that each embedded microserver in S4 stores are carried out comprehensive improvement by embedded microserver cluster module
And classification；
S6: each data receiver in broadcast data processing platform divides platform to issue first to embedded microserver cluster module
Request service or respond request, embedded microserver cluster module are interior to each data receiver in broadcast data processing platform
Divide platform to provide meteorological data to support.
9. the method for the embedded satellite meteorological ocean data broadcast reception application according to claim 8 based on FPGA,
It is characterized by: the storage system modules are stored using flash memory device, the flash memory device includes flash media and sudden strain of a muscle
Memory controller two parts can connect multiple with the encapsulation of much channel communication tissue flash memory particle inside flash memory device on each channel
Particle encapsulates, and shares transmission channel between more particles encapsulation, but can independently execute instruction；Internal each particle encapsulation includes two
Or multiple flash memory particles, each particle can be executed instruction by independently choosing.
10. the method for the embedded satellite meteorological ocean data broadcast reception application according to claim 8 based on FPGA,
It is characterized by: the embedded microserver of every two provides the network support of data transmission by LAN module, when described
One of them embedded microserver in embedded microserver cluster module breaks down, and the backup insertion not worked declines
Server will automatically take over the work of the embedded microserver of failure.
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