CN103957552B - The method for improving data communication reliability in automatic weather station - Google Patents
The method for improving data communication reliability in automatic weather station Download PDFInfo
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- CN103957552B CN103957552B CN201410201128.4A CN201410201128A CN103957552B CN 103957552 B CN103957552 B CN 103957552B CN 201410201128 A CN201410201128 A CN 201410201128A CN 103957552 B CN103957552 B CN 103957552B
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Abstract
The present invention relates to a kind of method, especially a kind of method for improving data communication reliability in automatic weather station, belongs to the technical field of automatic weather station communication.According to the technical scheme that the present invention is provided, the bridger of the method for data communication reliability in the raising automatic weather station, including base station, central station and connection base station and central station；At least two communication links are set up by bridger between the base station and central station, central station sets a communication link as main communication link, remaining communication link is auxiliary communication link, the larger path link of communication link quality enters row data communication with base station in central station selection communication link, to ensure the continuity and real-time of data communication between central station and base station.High degree of automation of the present invention, improves the reliability and operating efficiency of Data of Automatic Weather communication, and wide adaptation range is safe and reliable.
Description
Technical field
The present invention relates to a kind of method, especially a kind of method for improving data communication reliability in automatic weather station, category
In the technical field of automatic weather station communication.
Background technology
At present, automatic weather station system include for gather meteorological data and by the meteorological data outwards transmission
Base station, central station and the bridger of the connection central station and base station for being received to base station data, being analyzed and processed.
Usually, central station by bridger between bridger and base station communication, i.e. base station and central station by setting up a communication chain
Road.And work as central station and normally run, but when can not receive data, occur wherein with regard to being badly in need of understanding problem.If now communicated
Link is still unimpeded, then can combine the communication information for receiving carries out case study.But when this communication link is interrupted
When, it is impossible to know effective information, be now accomplished by user by artificial means, such as carry out site inspection or find other clothes
Business, problem is investigated with this and is appeared on earth on which node.This way not only reduce data to report rate, while tighter
Reduce operating efficiency again, it is impossible to meet user can pinpoint the problems in time and solve problem demand.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, there is provided data can during one kind improves automatic weather station
By the method for property, its high degree of automation improves the reliability and operating efficiency of Data of Automatic Weather communication, accommodation
Extensively, it is safe and reliable.
According to the technical scheme that the present invention is provided, the method for data communication reliability in the raising automatic weather station, bag
Include the bridger of base station, central station and connection base station and central station；Between the base station and central station by bridger set up to
Few two communication links, central station sets a communication link as main communication link, and remaining communication link is auxiliary communication link,
The larger path link of communication link quality enters row data communication with base station in central station selection communication link, to ensure central station
The continuity and real-time of data communication between base station.
The base station includes data acquisition unit and physical communications module, and the physical communications module includes at least two
SIM, unique IP address and UDP port number is configured per SIM card, to set up at least two communication links.
The data communication mode of the principal communication link includes GPRS.
The data acquisition unit passes through RS232 connection communications with physical communications module.
The central station includes link detection module, link analysis module and link switching module；By link detecting
Module polls physical communications module, to determine whether every SIM card has heartbeat packet, while in setting time, detecting principal communication
Whether link is online；
Link analysis module obtains each communication link state according to above-mentioned heartbeat bag data and work on off operating mode,
To obtain the communication link quality of communication link according to communication link state；The communication link state includes heartbeat packet promptness rate
Ppkg, the online rate P of linkon, nearest hour online rate Pon_hAnd link priority Ppriority, communication link quality P is
P=a1*Ppkg+a2*Pon+a3*Pon_h+a4*Ppriority
Wherein, parameter a1, parameter a2, parameter a3And parameter a4It is weight factor；Heartbeat packet promptness rate PpkgIt is Ppkg=n/
N, n are the number of times for receiving heartbeat packet, and N is the total degree of poll heartbeat packet；Online rate PonIt is Pon=m/M, m exist for communication link
Line number of times, M is the online total degree of detection；Link priority Ppriority∈[0,1]。
Link switching module is according to above-mentioned communication link quality P, switching selection communication link quality P larger communication link
As the data link between central station and base station.
Communicated using UDP between the base station and bridger.
Advantages of the present invention：When principal communication link breaks down to be caused to communicate obstructed, what central station automatic identification was changed
Routing address, switches to auxiliary communication link, and its communication process is consistent with principal communication link, and the timely of data communication is improved with this
Property, continuity, effectively overcome data-transmission interruptions and the problem such as time delay because caused by single communication link failure.Central station
By the change of routing address, you can know to have broken down any communication link belonged to；Meanwhile, by by present communications chain
Road sends the communication information, facility information of acquisition request present physical communication module etc., determines that failure cause is to belong to equipment
Communication link or other situations, improve the accuracy of fault diagnosis, and wide adaptation range is safe and reliable.
Brief description of the drawings
Fig. 1 is the flow chart that communication monitoring is carried out between central station of the invention and base station.
Fig. 2 is the schematic diagram to communication link analysis switching in central station of the present invention.
Specific embodiment
With reference to specific drawings and Examples, the invention will be further described.
At present, communicated using UDP (User Datagram Protocol) between base station and central station, wherein, UDP communications
Mode uses the product of one physical communications module of configuration in the data acquisition unit of base station, such as grand electricity or Nuo Lang.For
The user is allowed to grasp whether current communications link is unimpeded in real time, the physical communications module is responsible for central station active push number
According to bag, referred to as " heartbeat packet ", the major function of heartbeat packet is the state for notifying central station current time physical communications module.Together
When, the physical communications module can also provide the information related to communication, and the communication-related information main contents include module
State, SIM (Subscriber Identity Module) card-like state, base station signal strength etc..
Under conditions of communication link normal work, central station is by obtaining physical communications module information, such as GPRS
Whether (General Packet Radio Service) module normal, SIM whether normal, base station signal strength value etc., use
Family can grasp Current Communications Status according to this, and failure to being likely to occur is taken precautions against.
But, above-mentioned situation establishes a unique communication link between base station and central station, and by heartbeat packet
And whether the analysis of other related communications is unimpeded to monitor unique communication link, has main steps that：
(1), physical communications module, such as GPRS module, configure unique communication terminal number, IP address and UDP port number.Institute
State physical communications module and heartbeat packet and the information related to communication, such as module status, SIM state, base station signal strength are provided
Deng；
(2), central station receives above- mentioned information by bridger；
(3), central station is processed according to the communication information that reception is obtained, analyzed, and communications status monitoring is completed with this
Purpose.Now, user can obtain the real time information of communications status, such as base station signal, base station change by interactive interface.
In the state of communication link normal work, GPRS communication modules provide the information related to communication, including base station
Signal, Link State, SIM state etc., central station can infer the failure that may occur with this.
But, once unique communication link is interrupted, even if the physical communications module can provide it is more more
It is the detailed communication information, also central station cannot be sent to by communication link, because has now lost monitoring communications status
Necessary condition.So now, central station cannot clearly judge which node there occurs failure at, be on earth equipment or logical
Believe the problem of link, it is impossible to the localization of faults, the answer that user directly cannot be clearly satisfied with by software, and have to be by
Artificial means investigation failure cause, has had a strong impact on operating efficiency.
As depicted in figs. 1 and 2：In order to be able to improve the reliability and operating efficiency of Data of Automatic Weather communication, the present invention
Bridger including base station, central station and connection base station and central station；Set up by bridger between the base station and central station
At least two communication links, central station sets a communication link as main communication link, and remaining communication link is auxiliary communication chain
Road, the larger path link of communication link quality enters row data communication with base station in central station selection communication link, in ensuring
The continuity and real-time of data communication between center station and base station.
Specifically, due to setting up at least two communication links between central station and base station, in the bar that central station normally runs
Under part, wherein only a communication link is set to principal communication link, for data communication.When this principal communication link occurs
When failure causes communication disruption, central station wakes up the communication link in auxiliary communication link immediately, with rehabilitation center station with
Data communication between base station；When principal communication link-recovery is normal, central station still can select to switch to principal communication link.
In the process, by the continuous switching of communication link, it is ensured that the continuity of data communication.Meanwhile, when principal communication link occurs
During failure, communicated by auxiliary communication link, can effectively be found out the problem that current principal communication link occurs, and accuse in time
Know user, improve the efficiency of fault diagnosis.
The base station includes data acquisition unit and physical communications module, and the physical communications module includes at least two
SIM, unique IP address and UDP port number is configured per SIM card, to set up at least two communication links.
Further, communicated using UDP between the base station and bridger, UDP communications can be by China Mobile, China
The basic network that telecommunications or other multiple operators provide is realized, therefore configures various different fortune in physical communications module
The network that battalion business provides, that is, the SIM of two or more than two is configured, a plurality of communication is formed with the SIM by multiple
Link, principal communication link can be using mobile GPRS, the network that auxiliary communication link is provided using other operators.Central station reality
When monitoring language base station between communication link, if interrupting occur in the GPRS links of principal communication link, other will be automatically switched to
Auxiliary communication link, recovers data communication；If after operation a period of time, history run of the central station according to each communication link
Quality condition, automatic prioritizing selection link circuit condition is preferably as principal communication link.In general, in base station and the number of central station
A communication link is showed only as during according to communication.
The data acquisition unit passes through RS232 connection communications with physical communications module.Every SIM in physical communications module
The unique IP address of card configuration and UDP port number, for matching different bridgers.If principal communication link and subsidiary communications chain
In the case that road is unimpeded, all heartbeat packet can be sent to central station per communication link, now, just obligated shielding is auxiliary for central station
The heartbeat packet of communication link is helped, only allows the heartbeat packet of principal communication link to return to central station, central station can be by master afterwards
Communication link selects corresponding routing address to carry out data transmission.Meanwhile, either principal communication link or auxiliary communication link,
What is represented due to them is all a base station, what the communication terminal number that they return in the heartbeat packet of central station was just as.
Therefore, central station is by the information analysis to heartbeat packet, it is determined that current routing address, and carry out data biography with reference to communication terminal number
It is defeated.
The central station includes link detection module, link analysis module and link switching module；By link detecting
Module polls physical communications module, to determine whether every SIM card has heartbeat packet, while in setting time, detecting principal communication
Whether link is online；
Link analysis module obtains each communication link state according to above-mentioned heartbeat bag data and work on off operating mode,
To obtain the communication link quality of communication link according to communication link state；The communication link state includes heartbeat packet promptness rate
Ppkg, the online rate P of linkon, nearest hour online rate Pon_hAnd link priority Ppriority, communication link quality P is
P=a1*Ppkg+a2*Pon+a3*Pon_h+a4*Ppriority
Wherein, parameter a1, parameter a2, parameter a3And parameter a4It is weight factor；Heartbeat packet promptness rate PpkgIt is Ppkg=n/
N, n are the number of times for receiving heartbeat packet, and N is the total degree of poll heartbeat packet；Online rate PonIt is Pon=m/M, m exist for communication link
Line number of times, M is the online total degree of detection；Link priority Ppriority∈[0,1]。
Link switching module is according to above-mentioned communication link quality P, switching selection communication link quality P larger communication link
As the data link between central station and base station.
Because wireless network is unstable, therefore online rate PonThe communication link state at nearest moment cannot truly be reflected, because
Online rate P in this statistics nearest houron_h.The basic network quality condition that various operators provide is not quite similar, root
According to people to the long-term observation experience and statistics of various network quality situations, the link priority per communication link is set
Ppriority.Above-mentioned weight factor represents four above-mentioned significance levels of parameter, according to actual conditions, different communication links
In varied situations, weight factor can be variant.For example in some cases, heartbeat packet promptness rate occupies topmost status,
So a1A can be compared2, a3, a4Greatly, four values of weight factor are finished in initial just the setting in central station that link is connected.
If current principal communication link does not have heartbeat packet to send, judge that principal communication link breaks down.If current
Only two communication links, central station changes routing address, then switch to the auxiliary communication link of other.If system has
Three or more than three communication links, then link switching module is drawn according to link analysis module communication link quality P, it is excellent
First a larger auxiliary communication link of selection communication link quality P values is used as data communication, shields the heart of other communication links
Bag is jumped, routing address is changed.
The present invention when principal communication link break down cause to communicate obstructed when, central station automatic identification change route ground
Location, switches to auxiliary communication link, and its communication process is consistent with principal communication link, improves the promptness of data communication with this, connects
Continuous property, effectively overcomes because of problems such as the data-transmission interruptions caused by single communication link failure and time delays.Central station passes through
The change of routing address, you can know to have broken down any communication link belonged to；Meanwhile, sent out by by current communications link
Send the communication information, facility information of acquisition request present physical communication module etc., determine failure cause be the equipment that belongs to or
Communication link or other situations, improve the accuracy of fault diagnosis, and wide adaptation range is safe and reliable.
Claims (4)
1. it is a kind of improve automatic weather station in data communication reliability method, including base station, central station and connection base station with
The bridger of central station；It is characterized in that：At least two communication links, center are set up by bridger between the base station and central station
Stand and set a communication link as main communication link, remaining communication link is auxiliary communication link, central station selection communication link
The larger path link of middle communication link quality enters row data communication with base station, to ensure data communication between central station and base station
Continuity and real-time；
The base station includes data acquisition unit and physical communications module, and the physical communications module includes at least two SIM
Card, unique IP address and UDP port number is configured per SIM card, to set up at least two communication links；
The central station includes link detection module, link analysis module and link switching module；By link detection module
Poll physical communications module, to determine whether every SIM card has heartbeat packet, while in setting time, detecting principal communication link
It is whether online；
Link analysis module obtains each communication link state, with root according to above-mentioned heartbeat bag data and work on off operating mode
The communication link quality of communication link is obtained according to communication link state；The communication link state includes heartbeat packet promptness rate Ppkg、
The online rate P of linkon, nearest hour online rate Pon_hAnd link priority Ppriority, communication link quality P is
P=a1*Ppkg+a2*Pon+a3*Pon_h+a4*Ppriority
Wherein, parameter a1, parameter a2, parameter a3And parameter a4It is weight factor；Heartbeat packet promptness rate PpkgIt is Ppkg=n/N, n are
The number of times of heartbeat packet is received, N is the total degree of poll heartbeat packet；Online rate PonIt is Pon=m/M, m are that communication link is secondary online
Number, M is the online total degree of detection；Link priority Ppriority∈[0,1]；
Link switching module is according to above-mentioned communication link quality P, switching selection communication link quality P larger communication link conduct
Data link between central station and base station.
2. it is according to claim 1 improve automatic weather station in data communication reliability method, it is characterized in that：The master
The data communication mode of communication link includes GPRS.
3. it is according to claim 1 improve automatic weather station in data communication reliability method, it is characterized in that：The number
Pass through RS232 connection communications according to collector and physical communications module.
4. it is according to claim 1 improve automatic weather station in data communication reliability method, it is characterized in that：The base
Stand and communicated using UDP between bridger.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104635281B (en) * | 2015-02-17 | 2016-08-24 | 南京信息工程大学 | Data of Automatic Weather method of quality control based on severe weather process correction |
| CN106341322A (en) * | 2016-08-28 | 2017-01-18 | 航天恒星科技有限公司 | Link switching method and system |
| CN106802583A (en) * | 2017-02-17 | 2017-06-06 | 莫沙 | A kind of unmanned automatic Weather Station monitoring system and method |
| CN107708164B (en) * | 2017-10-31 | 2020-11-20 | 中国南方电网有限责任公司电网技术研究中心 | Network access method and system of power distribution terminal |
| CN107979858B (en) * | 2017-12-07 | 2021-03-16 | 北京小米移动软件有限公司 | Data path switching method, device, terminal and computer readable storage medium |
| CN113573301B (en) * | 2021-09-24 | 2022-06-24 | 北京智芯微电子科技有限公司 | Wireless communication terminal multichannel switching method, device and storage medium |
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Effective date of registration: 20191220 Address after: 214000 28 Weiming Road, Binhu District, Wuxi City, Jiangsu Province Patentee after: Aerospace new weather Technology Co., Ltd Address before: Jinxi road Binhu District 214125 Jiangsu city of Wuxi province No. 100 Patentee before: Jiangsu Provincial Radio Inst Co., Ltd. |
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