CN103763384B - Water and sand remote monitoring system and method based on double-link communication - Google Patents
Water and sand remote monitoring system and method based on double-link communication Download PDFInfo
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- CN103763384B CN103763384B CN201410041370.XA CN201410041370A CN103763384B CN 103763384 B CN103763384 B CN 103763384B CN 201410041370 A CN201410041370 A CN 201410041370A CN 103763384 B CN103763384 B CN 103763384B
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Abstract
The invention discloses a water and sand remote monitoring system and method based on double-link communication. The water and sand remote monitoring system comprises a far end monitoring subsystem used for collecting water regimen data, audio data and video data of a river drainage basin. The water regimen data are sent to a near end demonstration subsystem through a satellite communication link, and the water regiment data, the audio data and the video data are sent to the near end demonstration subsystem through a primary communication link. The near end demonstration subsystem detects the working state of the primary communication link according to the water regiment data received by the satellite communication link, the data collected by the satellite communication link or the primary communication link are selected to serve as calculation data according to a detection result, and demonstration is performed on a graphical interface of a computer.
Description
Technical field
The present invention relates to river course monitoring field, more particularly, to a kind of water sand remote supervision system based on dual link communication and
Method.
Background technology
The husky defeated shifting monitoring of water is constantly subjected to pay much attention in China, and it is to build hydraulic engineering and research reservoir operation side
The important foundation of formula, is also the basic support of flood disaster prevention and reduction.At present, the domestic monitoring major part to the husky defeated shifting of water still adopts scene
The mode of personal monitoring, only some areas employ relatively advanced automatic monitoring system.
Existing automatic monitoring system is mainly uploaded to data it is impossible to be met use using cable or GSM/GPRS mode
The demand that family is enriched to big data and type.And, because monitoring point is arranged on the more severe area of environment mostly, in severe sky
Under the impact of gas, monitoring link performance declines and easily causes wrong report, causes water sand Monitoring Data distortion.Once there are urgent feelings
Condition, causes data transmission link to interrupt, and leads to automatic monitoring system paralysis it is impossible to meet the emergent requirement of flood control.
Therefore, needing badly provides a kind of water sand remote real time monitoring system that ensure that Monitoring Data effectively transmission and method
To solve the above problems.
Content of the invention
The present invention be directed to the deficiencies in the prior art it is proposed that a kind of based on dual link communication water sand remote supervision system,
Including：
Far-end monitoring subsystem, for gathering the hydrologic regime data of river basins, voice data, video data；By described water
Feelings data sends via satellite communication link and demonstrates subsystem to near-end；And by described hydrologic regime data, voice data, video data
Send via primary communication link and demonstrate subsystem to near-end；
Described near-end demonstrates the work that subsystem detects primary communication link according to the hydrologic regime data that satellite communication link receives
Make state, and satellite communication link selected according to testing result or data that primary communication link receives is as calculation data,
In computer graphical demonstration on interface.
According to one embodiment of present invention, described near-end demonstration subsystem includes：
Detection module, is compared on the basis of the hydrologic regime data receiving via satellite communication link and connects via primary communication link
The hydrologic regime data received, detects that primary communication link is in normal condition or malfunction, obtains testing result；
Scheduler module, the data being transmitted via satellite communication link or primary communication link according to testing result scheduling；
When primary communication link is in normal condition, with the data that receives via primary communication link as calculation data；When primary
When communication link is in malfunction, with the data that receives via satellite communication link as calculation data；
Demonstration module, is analyzed predicting to described calculation data, in computer graphical demonstration on interface.
According to one embodiment of present invention, described detection module extracts the regimen receiving via satellite communication link respectively
Element of time data in data and the element of time data in the hydrologic regime data that receives via primary communication link, during calculating
Between difference；Judge primary communication link for step-out or synchronization according to described time difference；
If primary communication link is synchronous, detection module extract respectively the hydrologic regime data receiving via satellite communication link and
Via same time factor data corresponding regimen factor data value in the hydrologic regime data that primary communication link receives, with via defending
Compare, on the basis of the regimen factor data value that star communication link receives, the regimen factor data value receiving via primary communication link,
Judge primary communication link for losing efficacy or effectively according to comparison result；
If primary communication link is effective, described testing result is in normal condition for primary communication link；
If primary communication link is step-out or inefficacy, described testing result is in fault shape for primary communication link
State.
According to one embodiment of present invention, described far-end monitoring subsystem includes：
It is arranged on some monitoring devices of river basins, be respectively connecting to pretreatment module；Described monitoring device includes water
Feelings monitoring device, audio frequency monitoring device and video monitoring device, for gathering the environmental information of river basins；Described pretreatment
Module carries out pretreatment to described environmental information, obtains described hydrologic regime data, voice data, video data；
Coding module, carries out coding and generates satellite link monitoring message to described hydrologic regime data, and to described regimen number
According to, voice data, coding video data generates active link monitoring message.
According to one embodiment of present invention, described satellite link monitors message and active link monitors the message in message
Data is json form, and the hydrologic regime data in described message data, voice data, video data are carried out using the structure of key-value pair
Coding.
According to one embodiment of present invention, described pretreatment module carries out pretreatment to described environmental information, including：
Read the Hydrologic Information in described environmental information and be converted into described hydrologic regime data；
Read the audio-frequency information in described environmental information, by high frequency sampling, and be filtered using wavelet transformation, utilize
Base64 AES is encrypted, and obtains described voice data；
Read the video information in described environmental information, be converted into the discrete picture of BITMAP form, using Base64 plus
Close algorithm for encryption, obtains described video data.
According to another aspect of the invention, it is proposed that a kind of water sand remote monitoring method based on dual link communication, including：
Set up satellite communication link and primary communication link between far-end monitoring subsystem and near-end demonstration subsystem；
The environmental information of collection river basins；Pretreatment is carried out to described environmental information, obtains hydrologic regime data, audio frequency number
According to video data；
Described hydrologic regime data is sent to near-end demonstration subsystem via satellite communication link；And by described hydrologic regime data,
Voice data, video data is sent to near-end demonstration subsystem via primary communication link；
Detect the working condition of primary communication link according to the hydrologic regime data that satellite communication link receives, and according to detection knot
The data of fruit selection satellite communication link or the reception of primary communication link, as calculation data, is drilled at computer graphical interface
Show.
According to one embodiment of present invention, the described hydrologic regime data according to satellite communication link reception detects primary communication
The working condition of link, including：
The regimen receiving via primary communication link is compared on the basis of the hydrologic regime data receiving via satellite communication link
Data, detects that primary communication link is in normal condition or malfunction, obtains testing result.
According to one embodiment of present invention, described detection module extracts the regimen receiving via satellite communication link respectively
Element of time data in data and the element of time data in the hydrologic regime data that receives via primary communication link, during calculating
Between poor；Judge primary communication link for step-out or synchronization according to described time difference；
If primary communication link is synchronous, detection module extract respectively the hydrologic regime data receiving via satellite communication link and
Via same time factor data corresponding regimen factor data value in the hydrologic regime data that primary communication link receives, with via defending
Compare, on the basis of the regimen factor data value that star communication link receives, the regimen factor data value receiving via primary communication link,
Judge primary communication link for losing efficacy or effectively according to comparison result；
If primary communication link is effective, described testing result is in normal condition for primary communication link；
If primary communication link is step-out or inefficacy, described testing result is in fault shape for primary communication link
State.
According to one embodiment of present invention, described satellite communication link or primary communication chain are selected according to testing result
Road receive data as calculation data, including：
The data being transmitted via satellite communication link or primary communication link according to testing result scheduling；When primary communication
When link is in normal condition, with the data that receives via primary communication link as calculation data；At primary communication link
When malfunction, with the data that receives via satellite communication link as calculation data.
The present invention provides satellite communication link and primary communication link to transmit river environment Monitoring Data simultaneously, and by bilateral
The data of letter link transmission compares it is ensured that river course environment Monitoring Data accuracy.Environmental monitoring using json data form
Message and the feature of primary communication link high-speed transfer, compatible regimen key element and voice data, video data, abundant data passes
Defeated information content.Under crisis situation, monitoring can be provided by satellite communication link when primary communication link performance reduces
The real-time Transmission of data.
Other features and advantages of the present invention will illustrate in the following description, and partly become from description
It is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by wanting in description, right
Structure specifically noted in book and accompanying drawing is asked to realize and to obtain.
Brief description
Fig. 1 is the according to embodiments of the present invention one water sand remote supervision system structural representation based on dual link communication；
Fig. 2 is according to embodiments of the present invention one far-end monitoring subsystem structural representation；
Fig. 3 is according to embodiments of the present invention one near-end demonstration subsystem structure schematic diagram；
Fig. 4 is according to embodiments of the present invention one detection module workflow diagram that primary communication link is detected；
Fig. 5 is the according to embodiments of the present invention two water sand remote monitoring method flow charts based on dual link communication.
Specific embodiment
To describe embodiments of the present invention below with reference to accompanying drawing in detail, whereby to the present invention how application technology means
To solve technical problem, and reach realizing process and fully understanding and implement according to this of technique effect.As long as it should be noted that
Do not constitute conflict, each feature in various embodiments of the present invention and each embodiment can be combined with each other, the technical side being formed
Case is all within protection scope of the present invention.
Embodiment one
Fig. 1 is according to embodiments of the present invention one structural representation based on the water sand remote supervision system 100 of dual link communication
Figure.
System 100 includes far-end monitoring subsystem 101, for gathering the hydrologic regime data of river basins, voice data, video
Data；Described hydrologic regime data is sent via satellite communication link 102 and demonstrates subsystem 104 to near-end；And by described regimen number
According to, voice data, video data sends via primary communication link 103 and demonstrates subsystem 104 to near-end；
Near-end is demonstrated subsystem 104 and is detected primary communication link 103 according to the hydrologic regime data that satellite communication link 102 receives
Working condition, and according to testing result select data that satellite communication link 102 or primary communication link 103 receive as
Calculation data, in computer graphical demonstration on interface.
In the present embodiment, satellite communication link 102 is provided by big-dipper satellite network；Primary communication link 103 can be by
The communication link that any one communication network in LTE, WCDMA, CDMA2000, TD-CDMA, WLAN, GPRS provides, or for making
With the short distance wireless communication technology, such as Wi-Fi, Zigbee, and combine the communication link that the Internet provides.
Fig. 2 is the structural representation of according to embodiments of the present invention one far-end monitoring subsystem 101, far-end monitoring subsystem
101 collections being integrated with river environment Monitoring Data, storage, pretreatment, the function of transmission.If including being arranged on river basins
Dry monitoring device 201, is respectively connecting to pretreatment module 202；Monitoring device 201 includes water regime monitoring device, audio frequency monitoring dress
Put and video monitoring device, for gathering the environmental information of river basins, including Hydrologic Information, audio-frequency information and video letter
Breath；Pretreatment module 202 carries out pretreatment to environmental information, obtains corresponding hydrologic regime data, voice data, video data.
Preferably, water regime monitoring device can be one of level sensor, effusion meter, current meter, water sand sensor
Or it is several, for gathering the hydrologic regime data in river, including water level, flow, flow velocity, silt, ice slush etc.；Audio frequency monitoring device makes
With mike, for gathering the audio-frequency information in river；Video monitoring device, using the first-class video monitoring device of shooting, is used for adopting
The video information in collection river.
Level sensor, effusion meter, water sand sensor, mike, photographic head etc. passes through RS485 bus, microwave, USB
The modes such as cable are connected with pretreatment module 202.
Pretreatment module 202 carries out pretreatment to the environmental information in river, reads regimen sensing data and is converted into regimen
Factor data, for example, the range data of level transducer is converted to waterlevel data.
Specifically, the numerical value of level transducer output is the distance to the water surface for the sensor, and water level is that the water surface arrives standard Hai Ping
The distance in face.When installing level transducer, level transducer is set to standard sea level distance, therefore level transducer is defeated
The numerical value going out is waterlevel data with the difference of level transducer to standard sea level distance.
Pretreatment module 202 carries out pretreatment to the environmental information in river, also includes reading in environmental information and is supervised by audio frequency
Survey the audio-frequency information of device collection, by high frequency sampling, and be filtered using wavelet transformation, added using Base64 AES
Close, obtain voice data.Wherein, audio-frequency information is filtered using wavelet transformation, substantial amounts of can reduce voice data
Data volume, effectively utilizes communication link capacity.
Pretreatment module 202 carries out pretreatment to the environmental information in river, also includes reading in environmental information and is supervised by video
Survey the video information of device collection, be converted into the discrete picture of BITMAP form, encrypted using Base64 AES, depending on
Frequency evidence.
Preferably, far-end monitoring subsystem also can arrange far-end work equipment and safeguard number at the scene for staff
According to.Hydrologic regime data, voice data, video data are pushed to far-end work equipment and are stored as text shape by pretreatment module 202
Formula, is conducive to the shared of river environment information and safeguards.
Coding module 203 carries out coding and generates satellite link monitoring message to hydrologic regime data, and to hydrologic regime data, audio frequency
Data, coding video data generates active link monitoring message.
The present embodiment provides one kind to be based on json（Javascript Object Notation）The river ring of data form
Message coding mode, compatible existing hydrology supervision control engineering specification are monitored in border, and can process multiple regimen sensing devices, Mike
Complicated monitoring information produced by wind, photographic head.
This river environment monitoring message format is as shown in table 1.
Table 1
| Code identifier | Survey station identifier | Object identifier | Message data length | Message data |
Wherein, code identifier is：" C ", " D " and " Z "." C " is order indications, and " D " is content ID, and " Z " is
State indications.Code identifier is English alphabet, accounts for 1 byte.
Order indications represent that current message is sent to far-end monitoring modular by near-end demonstration module.For to each monitoring
The control operation of device, for example, enable, close and status poll and content requests.
Content ID represents that current message is sent to near-end demonstration module by far-end monitoring modular.For by river environment
Information reporting is demonstrated to near-end demonstration module.
Survey station identifier is unique sign of each monitoring station；Object identifier is the water regime monitoring device in monitoring station
Mark code.Survey station identifier is 10bit, and front 6bit is regional postcode numbering, and rear 4bit is the sequence number in this area for the survey station.
Message data length represents the length of message data.Preferably, this satellite link monitors the message data in message
Length takies 8bit, and the message data length that this active link is monitored in message takies 32bit.
Message data represents the river environment data corresponding with code identifier, survey station identifier, object identifier, bag
Include hydrologic regime data, voice data and video data；Or represent relative with code identifier, survey station identifier, object identifier
The control data answered.
Message data is encoded using json form, as shown in table 2.
Table 2
Wherein, key element represents the regimen key element including water level, flow, flow velocity, sediment charge etc., and audio frequency will
Element, video element.
Table 3, table 4 illustrate the form of message data with specific example.
Table 3
| { | Date | ： | 20131121 | Time | ： | 122130 | , | Water level | ： | 18.11 | } |
Shown in table 3, waterlevel data is expressed as json form, represents that the date of this waterlevel data collection is in November, 2013
21, the time of collection is 12：21：30, waterlevel data is 18.11.Wherein, " date " and " time " is element of time,
" 20131121 " and " 122130 " are element of time data；" water level " is regimen key element, and " 18.11 " are regimen factor data.
Shown in table 4, video data is expressed as json form, represents that the date of this video data acquiring is in November, 2013
21 days, time of collection be the time of collection be 12：21：30, this data is gathered by photographic head 1.
Table 4
Json data form is a kind of data interchange format of lightweight, using the textual form being totally independent of language,
It is easy to read and write and be easy to machine parsing and generate.Json data structure is { key：value,key：value,...}
Key-value pair structure, hydrologic regime data in the present embodiment message data, voice data, video data adopt the structure of key-value pair
Encoded, be conducive to water sand data cloud storage and cloud to share.Such as waterlevel data, flow speed data, sediment charge etc., wherein water
Position, flow velocity, silt content are the key key in structure, and data volume is value value of this key.
Further, because the species of water regime monitoring device is various, the water regime monitoring data that it is generated has the number of itself
According to form.Encoded using json form in the present embodiment, multiple water regime monitoring devices of compatible many producers.Due to json
The data message description of form is succinct, carries regimen key element and voice data, video data simultaneously, is easy to far-end demonstration subsystem
104 process.
Far-end satellite communication module 204 is used for realizing the conversion of communication protocol, and satellite link monitoring message is processed
To be adapted to satellite communication protocols, send via satellite communication link 102 and demonstrate subsystem 104 to near-end.
Preferably, satellite communication link 102 is provided by big-dipper satellite network.The north of 98 byte lengths is adopted in the present embodiment
Bucket note message, as shown in table 5.Satellite link monitoring message is adapted to the prison of 76 bytes by far-end satellite communication module 204
Observe and predict literary composition, obtain Big Dipper packet, and Big Dipper packet is sent via Beidou satellite communication network.
Table 5
The primary communication module of far-end 205 is used for realizing the conversion of communication protocol, and active link monitoring message is processed
To be adapted to active link communication protocol, send via primary communication link 103 and demonstrate subsystem 104 to near-end.
Preferably, primary communication link 103 is by Long Term Evolution LTE（Long Term Evolution）Communication network provides,
Realize the HD video transmission to monitoring river basins environment.The primary communication module of far-end 205 to active link monitoring message with
Transmission block TB（Transmission Block）Form be adapted for LTE packet.Can be appropriately sized according to transmission block TB
Active link waiting for transmission monitoring message is split or is cascaded, farthest to utilize limited transmission time.Again
Through CRC check, code block segmentation and coding, modulation, ultimately generate LTE packet, send to near-end via LTE communication network
Demonstration subsystem 104.
Preferably, supplied by accumulator or solar panel because far-end monitoring subsystem 101 is generally arranged at field
Electricity, for reducing transmitting power consumption, can be far-end satellite communication module 204 and the primary communication module of far-end 205 setting communication frequency.This
The transmission frequency setting hydrologic regime data in embodiment is as sending once every 5 minutes, and voice data and video data are via master
Sent in real time with communication link 103.
Fig. 3 is the structural representation of according to embodiments of the present invention one near-end monitoring subsystem 104, including：
Near-end satellite communication module 301, receives the packet via satellite communication link 102 transmission and parses, defended
Star link monitoring message, is forwarded to decoder module 303；The primary communication module of near-end 302, receives via primary communication link 103
The packet of transmission simultaneously parses, and obtains active link monitoring message, is forwarded to decoder module 303.
Decoder module 303 is decoded to the satellite link monitoring message receiving and active link monitoring message, respectively
Obtain the hydrologic regime data to receive, and the regimen number receiving via primary communication link 103 via satellite communication link 102
According to, voice data, video data.
Detection module 304 is compared via primary communication on the basis of the hydrologic regime data receiving via satellite communication link 102
The hydrologic regime data that link 103 receives, detects that primary communication link 103 is in normal condition or malfunction, obtains detection knot
Really.
Specifically, detection module 304 extracts respectively and wants via the time in the hydrologic regime data of satellite communication link 102 reception
Prime number, according to this and via the element of time data in the hydrologic regime data of primary communication link 103 reception, calculates time difference；According to institute
Stating time difference judges primary communication link 103 for step-out or synchronization；
If primary communication link is synchronous, detection module 304 extracts the regimen receiving via satellite communication link 102 respectively
Data and via primary communication link 103 receive hydrologic regime data in same time key element corresponding regimen factor data value, with
Compare the water receiving via primary communication link 103 via on the basis of the regimen factor data value that satellite communication link 102 receives
Feelings factor data value, judges primary communication link for losing efficacy or effectively according to comparison result；
If primary communication link is effective, described testing result is in normal condition for primary communication link；
If primary communication link is step-out or inefficacy, described testing result is in fault shape for primary communication link
State.
Scheduler module 305 transmits via satellite communication link 102 or primary communication link 103 according to testing result scheduling
Data；When primary communication link is in normal condition, with the data that receives via primary communication link as calculation data；
When primary communication link is in malfunction, with the data that receives via satellite communication link as calculation data.
Demonstration module 306 is analyzed predicting to calculation data, in computer graphical demonstration on interface.
The workflow diagram that Fig. 4 is detected to primary communication link for detection module 304, comprises the following steps：
Step S401, setting time difference limen value and wrong report threshold value, definition wrong report enumerator；Mistake wherein in wrong report enumerator
Report number of times initial value is 0.Preferably, in the present embodiment, time difference threshold value is set as 10 minutes, and wrong report threshold value is set as 5 times.
Step S402, extract respectively via satellite communication link 102 receive hydrologic regime data in element of time data with
And via the element of time data in the hydrologic regime data of primary communication link 103 reception, calculate time difference；
Step S403, judges whether described time difference is more than time difference threshold value,
If described time difference is more than time difference threshold value, primary communication link 103 is step-out, and testing result is primary logical
Letter link 103 is malfunction；If described time difference is less than time difference threshold value, primary communication link 103 is synchronous, execution
Step S404.
Preferably, if described time difference is more than 10 minutes, primary communication link 103 is step-out, based on testing result
It is malfunction with communication link 103；If described time difference is less than 10 minutes, primary communication link 103 is synchronous.
Step S404, extracts respectively via the hydrologic regime data of satellite communication link 102 reception with via primary communication link
Same time factor data corresponding regimen factor data value in the hydrologic regime data of 103 receptions, with via satellite communication link 102
The regimen factor data value receiving via primary communication link 103 is compared on the basis of the regimen factor data value receiving.
Step S405, judges whether same time factor data corresponding regimen factor data value is consistent, if unanimously, leads
It is effective with communication link 103, reports counter O reset by mistake, testing result is in normal condition for primary communication link 103；If no
Unanimously, then execution step S406.
Step S406, in primary communication link 103, wrong report, the wrong report number of times in wrong report enumerator in regimen factor data
Plus 1, execution step 407.
Step S407, judges whether the wrong report number of times reported by mistake in enumerator is more than wrong report threshold value；
If wrong report number of times is more than wrong report threshold value, primary communication link 103 is to lose efficacy, and testing result is primary communication link
103 are in malfunction, report counter O reset by mistake；
If wrong report number of times is less than wrong report threshold value, extract future time factor data, execution step 404.
Preferably, if the continuous wrong report number of times of primary communication link is more than 5 times, primary communication link 103 is to lose efficacy, inspection
Survey result and be in malfunction for primary communication link 103.
The present embodiment passes through to provide satellite communication link and primary communication link to transmit river environment Monitoring Data simultaneously, and
The data of dual communication link transmission is compared it is ensured that river course environment Monitoring Data accuracy.Ring using json data form
Feature, compatible regimen key element and voice data, the video data of message and primary communication link high-speed transfer is monitored in border, enriches
The information content of data transfer.Under crisis situation, can be carried by satellite communication link when primary communication link performance reduces
Real-time Transmission for Monitoring Data.
Embodiment two
Fig. 5 is the according to embodiments of the present invention two water sand remote monitoring method flow chart based on dual link communication, including：
Step S501, sets up satellite communication link and primary between far-end monitoring subsystem and near-end demonstration subsystem
Communication link.
Step S502, the environmental information of collection river basins；Pretreatment is carried out to described environmental information, obtains regimen number
According to, voice data, video data.
Step S503, described hydrologic regime data is sent to near-end demonstration subsystem via satellite communication link；And will be described
Hydrologic regime data, voice data, video data is sent to near-end demonstration subsystem via primary communication link.
Step S504, detects the working condition of primary communication link according to the hydrologic regime data that satellite communication link receives, and
Data that satellite communication link or primary communication link receive is selected as calculation data according to testing result, in computer graphic
Shape demonstration on interface.
Specifically, compared on the basis of the hydrologic regime data receiving via satellite communication link and receive via primary communication link
Hydrologic regime data, detect primary communication link be in normal condition or malfunction, obtain testing result.
Detailed step is consistent with the step of workflow in figure Fig. 4 Suo Shi, primary communication link being detected, no longer
Repeat.
Although disclosed herein embodiment as above, described content is only to facilitate understanding the present invention and adopting
Embodiment, is not limited to the present invention.Technical staff in any the technical field of the invention, without departing from this
On the premise of the disclosed spirit and scope of invention, any modification and change can be made in the formal and details implemented,
But the scope of patent protection of the present invention, still must be defined by the scope of which is defined in the appended claims.
Claims (8)
1. a kind of water sand remote supervision system based on dual link communication is it is characterised in that include：
Far-end monitoring subsystem, for gathering the hydrologic regime data of river basins, voice data, video data；By described regimen number
Demonstrate subsystem according to sending via satellite communication link to near-end；By described hydrologic regime data, voice data, video data is via master
Sent with communication link and demonstrate subsystem to near-end；
Described near-end demonstrates the work shape that subsystem detects primary communication link according to the hydrologic regime data that satellite communication link receives
State, and data that satellite communication link or primary communication link receive is selected as calculation data according to testing result, in meter
Calculation machine graphical interfaces is demonstrated,
Detection module, is compared via the reception of primary communication link on the basis of the hydrologic regime data receiving via satellite communication link
Hydrologic regime data, detects that primary communication link is in normal condition or malfunction, obtains testing result；
Scheduler module, the data being transmitted via satellite communication link or primary communication link according to testing result scheduling；Work as master
When being in normal condition with communication link, with the data that receives via primary communication link as calculation data；When primary communication
When link is in malfunction, with the data that receives via satellite communication link as calculation data；
Demonstration module, is analyzed predicting to described calculation data, in computer graphical demonstration on interface.
2. the system as claimed in claim 1 it is characterised in that
Described detection module extracts respectively via the element of time data in the hydrologic regime data of satellite communication link reception and warp
Element of time data in the hydrologic regime data being received by primary communication link, calculates time difference；Sentenced according to described time difference
The primary communication link that breaks is step-out or synchronization；
If primary communication link is synchronous, detection module extract respectively the hydrologic regime data receiving via satellite communication link and via
Same time factor data corresponding regimen factor data value in the hydrologic regime data that primary communication link receives, to lead to via satellite
Compare, on the basis of the regimen factor data value that letter link receives, the regimen factor data value receiving via primary communication link, according to
Comparison result judges primary communication link for losing efficacy or effectively；
If primary communication link is effective, described testing result is in normal condition for primary communication link；
If primary communication link is step-out or inefficacy, described testing result is in malfunction for primary communication link.
3. system as claimed in claim 1 or 2 is it is characterised in that described far-end monitoring subsystem includes：
It is arranged on some monitoring devices of river basins, be respectively connecting to pretreatment module；Described monitoring device includes regimen prison
Survey device, audio frequency monitoring device and video monitoring device, for gathering the environmental information of river basins；Described pretreatment module
Pretreatment is carried out to described environmental information, obtains described hydrologic regime data, voice data, video data；
Coding module, carries out coding and generates satellite link monitoring message to described hydrologic regime data, and to described hydrologic regime data, sound
Frequency evidence, coding video data generates active link monitoring message.
4. system as claimed in claim 3 is it is characterised in that described satellite link monitoring message and active link monitor message
In message data be json form, hydrologic regime data in described message data, voice data, video data adopt key-value pair
Structure is encoded.
5. system as claimed in claim 3 is it is characterised in that described pretreatment module carries out pre- place to described environmental information
Reason, including：
Read the Hydrologic Information in described environmental information and be converted into described hydrologic regime data；
Read the audio-frequency information in described environmental information, by high frequency sampling, and be filtered using wavelet transformation, utilize
Base64 AES is encrypted, and obtains described voice data；
Read the video information in described environmental information, be converted into the discrete picture of BITMAP form, encrypted using Base64 and calculate
Method is encrypted, and obtains described video data.
6. a kind of water sand remote monitoring method based on dual link communication is it is characterised in that include：
Set up satellite communication link and primary communication link between far-end monitoring subsystem and near-end demonstration subsystem；
The environmental information of collection river basins；Pretreatment is carried out to described environmental information, obtains hydrologic regime data, voice data, depending on
Frequency evidence；
Described hydrologic regime data is sent to near-end demonstration subsystem via satellite communication link；And by described hydrologic regime data, audio frequency
Data, video data is sent to near-end demonstration subsystem via primary communication link；
Detect the working condition of primary communication link according to the hydrologic regime data that satellite communication link receives, and selected according to testing result
Select the data that satellite communication link or primary communication link receive as calculation data, in computer graphical demonstration on interface,
The described hydrologic regime data according to satellite communication link reception detects the working condition of primary communication link, including：
The hydrologic regime data receiving via primary communication link is compared on the basis of the hydrologic regime data receiving via satellite communication link,
Detect that primary communication link is in normal condition or malfunction, obtain testing result.
7. method as described in claim 6 it is characterised in that
Described detection module extracts respectively via the element of time data in the hydrologic regime data of satellite communication link reception and warp
Element of time data in the hydrologic regime data being received by primary communication link, calculates time difference；Master is judged according to described time difference
It is step-out or synchronization with communication link；
If primary communication link is synchronous, detection module extract respectively the hydrologic regime data receiving via satellite communication link and via
Same time factor data corresponding regimen factor data value in the hydrologic regime data that primary communication link receives, to lead to via satellite
Compare, on the basis of the regimen factor data value that letter link receives, the regimen factor data value receiving via primary communication link, according to
Comparison result judges primary communication link for losing efficacy or effectively；
If primary communication link is effective, described testing result is in normal condition for primary communication link；
If primary communication link is step-out or inefficacy, described testing result is in malfunction for primary communication link.
8. method as claimed in claim 7 is it is characterised in that described select satellite communication link or master according to testing result
With communication link receive data as calculation data, including：
The data being transmitted via satellite communication link or primary communication link according to testing result scheduling；When primary communication link
When being in normal condition, with the data that receives via primary communication link as calculation data；When primary communication link is in event
During barrier state, with the data that receives via satellite communication link as calculation data.
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