CN110519859A - A kind of dispatching method of the access up channel of VDES system - Google Patents
A kind of dispatching method of the access up channel of VDES system Download PDFInfo
- Publication number
- CN110519859A CN110519859A CN201910841005.XA CN201910841005A CN110519859A CN 110519859 A CN110519859 A CN 110519859A CN 201910841005 A CN201910841005 A CN 201910841005A CN 110519859 A CN110519859 A CN 110519859A
- Authority
- CN
- China
- Prior art keywords
- moment
- channel
- urgency traffic
- access
- max
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000003044 adaptive effect Effects 0.000 claims description 10
- 238000004891 communication Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000021184 main course Nutrition 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/04—Scheduled access
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates to wireless communication technology fields, and in particular to a kind of dispatching method of the access up channel of VDES system, method includes the following steps: the classification of one, business and channel setting；Two, it according to the business number that the top n moment of t moment sum is reached, predicts the channel distribution threshold value Q (t+1) at t+1 moment, and makes the adjustment of the up channel distribution at t+1 moment；Three, according to all business numbers at t+1 moment, the adjustment of the up channel distribution at t+1 moment is done；Four, the channel scheduling method at t+1 moment is reused.Competition is compared using the method for channel together with existing all business, the present invention is adjusted using the distribution that the prediction of urgency traffic number carries out access up channel, it can effectively guarantee the access of urgency traffic, the major accident that anti-locking system may cause by business queuing problem, it is excessive so as to cause service performance excessive descent that the system that can also effectively avoid the problem that instantaneously accesses capacity.
Description
Technical field
The present invention relates to wireless communication technology field, the dispatching party of the access up channel of specially a kind of VDES system
Method.
Background technique
As the continuous development and deep, marine logistics business continuous rise of economic technology globalization result in offshore vessel
Quantity it is growing, the ship quantity of the important ports such as China Shanghai, Ningbo constantly increases in recent years.In addition, sea is caught
The increase of fishing operation ship and far and near ocean law enforcement ship quantity has been further exacerbated by the ship density on the main course line in ocean,
Further increase the risk that the accidents such as occurs colliding in ship.
By sending in common frequency band, ship own identification, position, course, speed and load-carrying etc. are conventional to be believed VDES system
Breath, meanwhile, ship also utilizes VDES system to the emergence message of satellite transmission emergency, anticollision etc, it is possible to prevente effectively from boat
Act the generation of event.But with the continuous growth of ships quantity, VDES power system capacity faces increasing challenge, especially
Being ought sometime, when a large amount of ship centralized calls, and system service performance can decline to a great extent.There is data to show, when VDES system
When the momentary output of system reaches 50%, system just have biggish congestion, delay phenomena such as.Because of the routine information and tight
Anxious information is the uplink communication channel that competition uses satellite together, at this point, needing to transmit if any emergence message, it is possible to be prolonged
When even because communication channel congestion and cannot transmit, so as to cause great casualties and property loss accident.Therefore,
Need to invent a kind of dispatching method of VDES system access satellite uplink channel, to guarantee that emergence message being capable of biography promptly and accurately
It reaches, avoids that accident occurs.
Summary of the invention
For the deficiencies in the prior art, technical problem to be solved by the invention is to provide a kind of VDES systems
The dispatching method of up channel is accessed, this method can effectively guarantee the access of urgency traffic, and anti-locking system is because of business queuing
The major accident and casualties that problem may cause, and it is possible to prevente effectively from system instantaneously access capacity it is excessive so as to cause
The problem of service performance excessive descent.
The scheme that the present invention solves above-mentioned technical problem is:
A kind of dispatching method of the access up channel of VDES system, method includes the following steps:
Step 1: business classification and channel setting:
If the uplink of VDES system Satellite can be MAX with access total number of channels, then allow to connect at all moment
The maximum traffic quantity entered is MAX, i.e. a channel can correspond to one business of access；
Provide that the type of service of the uplink of all access satellites is divided into two class of general service and urgency traffic；If Q is
The channel distribution adaptive threshold of setting, as the separation of general service and urgency traffic, and 0~Q is general traffic channel,
Q~MAX is urgency traffic channel；
It is located at some moment t, has there is L1(t) a general service and L2(t) uplink of a urgency traffic access satellite
Road and link do not discharge；When the t+1 moment arrives, there is L1(t+1) a general service and L2(t+1) a urgency traffic needs to access
System；In this regard, then the dispatching method of this access up channel is subsequent three steps；
Step 2: the business number that N number of moment according to t moment and its before is reached predicts the channel distribution at t+1 moment
Threshold value Q (t+1), and make the adjustment of the up channel distribution at t+1 moment:
Read the t moment that is buffered in VDES system and its number of services that N number of moment before is reached；
The urgency traffic quantity at t+1 moment is predicted using adaptive minimal error algorithm, specifically:
1) weight coefficient W is initializedi(t), the Wi(t) initial value to generate at random；It reads in buffer zone and stores
The t-i moment urgency traffic actual quantity x (t-i) and L2(t), wherein i=1,2, L, N；L2(t-i) it represents at the t-i moment
Practical urgency traffic quantity, i.e. x (t-i)=L2(t-i)；
2) predicted quantity of t moment urgency traffic is calculatedCalculate error e (t)=L2(t)-y
(t)；As e (t) > δ, N number of weight coefficient W of filter is updatedi(t), (amendment) calculates the weight coefficient W of t momenti(t)=
Wi(t)+2 μ e (t) x (t), wherein μ is the gain constant for controlling adaptive speed and stability, usually takes 10-3:10-1Between
Positive number；Calculate the weight coefficient predicted value W at t+1 momenti(t+1)=Wi(t+1)+2μe(t)x(t)；
3) it returns 2), continues cycling through and update Wi(t), make to export y (t) and L2(t) error e (t) between constantly reduces, directly
To e (t)≤δ, end loop；
4) the urgency traffic quantitative forecast value at t+1 moment is calculatedWherein, x (t+1-
It i) is the urgency traffic quantity at the t+1-i moment stored in buffer queue；
According to y (t+1), system call interception distributes to the number of channel of urgency traffic, to guarantee the priority access of urgency traffic, i.e.,
Set Q (t+1) value, Q (t+1)=MAX-y (t+1)；
Step 3: according to the business number L really reached at t+1 moment1(t+1) and L2(t+1), then the uplink at t+1 moment is done
The adjustment of channel distribution；Point or less 3 kinds of situations:
Situation 1, works as L2(t+1)≤MAX-Q(t+1)-L2(t) when, L2(t+1) a urgency traffic can be sequentially ingressed into urgent industry
Business channel；Work as L1(t+1)≤Q(t+1)-L1(t) when, L1(t+1) a general service is sequentially ingressed by calling sequence；Work as L1(t+1)
> Q (t+1)-L1(t) when, the general service for failing access is waited in line；
Situation 2, works as L2(t+1) > MAX-Q (t+1)-L2And L (t),2(t+1)-[MAX-Q(t+1)-L2(t)]≤Q(t+1)
When, fail the urgency traffic priority access general traffic channel for accessing urgency traffic channel；L1(t+1) a general service according still further to
Calling sequence accesses general traffic channel, waits in line if any the general service for failing access:
Situation 3, works as L2(t+1) > MAX-Q (t+1)-L2And L (t),2(t+1)-[MAX-Q(t+1)-L2(t)] > Q (t+1)
When, fail the urgency traffic priority access general traffic channel for accessing urgency traffic channel, still fails to the urgency traffic of access
Wait in line together with general service；
Step 4: at t+2 moment and its each later moment, reusing the channel scheduling method at t+1 moment, with
The uplink communication completed between ship and satellite connects.
The dispatching method of the access up channel of VDES system disclosed by the invention compared with prior art, has with following
Beneficial effect:
One, it effectively solves the problems, such as the priority access of such as urgency traffic of emergency, anticollision etc, solves system because being lined up
The major accident and casualties that problem may cause.
Two, effectively avoid the problem that system instantaneously accesses the excessive caused service performance excessive descent of capacity.
Detailed description of the invention
Fig. 1 is the schematic diagram that ship is communicated with satellite；
Fig. 2 is the distribution of the satellite uplink channel of the dispatching method of the access up channel of VDES system disclosed by the invention
Schematic diagram；
Fig. 3 is the subsequent time urgency traffic amount of the dispatching method of the access up channel of VDES system disclosed by the invention
The system model figure of prediction；
Fig. 4 is the subsequent time urgency traffic amount of the dispatching method of the access up channel of VDES system disclosed by the invention
The functional block diagram of prediction；
Fig. 5 is the subsequent time urgency traffic amount of the dispatching method of the access up channel of VDES system disclosed by the invention
The algorithm flow chart of prediction；
Fig. 6 is that the up channel distribution of the dispatching method of the access up channel of VDES system disclosed by the invention was finely tuned
Journey flow chart；
Fig. 7 is the overall flow block diagram of the dispatching method of the access up channel of VDES system disclosed by the invention.
Specific embodiment
Embodiment 1
Refering to Fig. 2-7, a kind of dispatching method of the access up channel of VDES system, this method packet are present embodiments provided
Include following steps:
Step 1: business classification and channel setting:
11) assume business one channel of corresponding access, it is specified that the uplink of all access satellites type of service
It is divided into two class of general service and urgency traffic；
12) the available access total number of channels of VDES uplink Satellite is set as MAX, then allows to access at all moment
Maximum traffic quantity be MAX, i.e. a channel can correspond to access one business；If Q is the channel distribution adaptive thresholding of setting
Value, as the separation of general service and urgency traffic, and 0~Q is general traffic channel, and Q~MAX is urgency traffic channel,
As shown in Figure 2；
13) it is located at some moment t, has there is L1(t) a general service and L2(t) a urgency traffic is accessed and is linked not
Release；When the t+1 moment arrives, there is L1(t+1) a general service and L2(t+1) a urgency traffic needs access system；In this regard,
Then the dispatching method of this access up channel is subsequent three steps；
Step 2: according to the business number that the top n moment of t moment sum is reached, the channel distribution threshold value at t+1 moment is predicted
Q (t+1), and make the adjustment of the up channel distribution at t+1 moment；
21) in moment t by the general service L of access1(t) and urgency traffic L2(t) it is buffered in the buffer area of VDES system
Domain, the buffer zone VDES structure are as shown in Figure 3；
22) traffic forecast at t+1 moment is carried out by the number of services of the buffer zone, it is then pre- according to business
Measured value, set the t+1 moment Q (t+1) value, come carry out in advance the t+1 moment channel resource distribution；Specifically include following step
It is rapid:
221) the urgency traffic quantity at t+1 moment is predicted using adaptive minimal error algorithm, specifically:
Step 1: initialization weight coefficient Wi(t), the Wi(t) initial value to generate at random；Read buffer zone
The actual quantity x (t-i) and L of the urgency traffic at the t-i moment of middle storage2(t), wherein i=1,2, L, N；L2(t-i) it represents
The practical urgency traffic quantity at t-i moment, i.e. x (t-i)=L2(t-i)；
Step 2: calculating the predicted quantity of t moment urgency trafficCalculate error e (t)=L2
(t)-y(t)；It as e (t) > δ, calculates factor mu e (t), wherein μ is the gain constant for controlling adaptive speed and stability, is led to
Often take 10-3:10-1Between positive number；Update N number of weight coefficient W of filteri(t), and the weight coefficient W at t+1 moment is predictedi
(t+1), that is, W is calculatedi(t)=Wi(t)+2 μ e (t) x (t) and Wi(t+1)=Wi(t+1)+2μe(t)x(t)；
Step 3: returning to second step, it is cyclically updated Wi(t), make to export y (t) and L2(t) error e (t) between constantly subtracts
It is small, until e (t)≤δ, end loop；
Step 4: predicting the urgency traffic quantity at t+1 moment according to t+1 moment and top n moment urgency traffic quantityThe urgency traffic quantity at the t+1-i moment stored in x (t+1-i) buffer queue, Wi(t
It+1) is the weight coefficient at t+1 moment；The system model figure of subsequent time urgency traffic amount prediction is Fig. 3, the urgent industry of subsequent time
The functional block diagram of business amount prediction is Fig. 4, and subsequent time urgency traffic amount prediction algorithm flow chart is Fig. 5.Algorithm circulation adjustment is N number of
Weight coefficient Wi(t+1), with the accuracy of this urgency traffic number for increasing prediction；
222) according to y (t+1), system call interception distributes to the number of channel of urgency traffic, guarantees the priority access of urgency traffic,
Set Q (t+1) value, Q (t+1)=MAX-y (t+1)；Urgency traffic number y is predicted according to the t+1 moment that adaptive algorithm exports
(t+1) it sets Q (t+1) value, can be prevented by subsequent time Traffic prediction come reasonable distribution satellite channel resource in this way
The waste of channel resource.
Step 3: according to the business number L really reached at t+1 moment1(t+1) and L2(t+1), then the uplink at t+1 moment is done
The micro-adjustment of channel distribution；
Assuming that being carved with L in t+1 when the t+1 moment arrives1(t+1) a general service and L2(t+1) a urgency traffic needs
Want access system.And the L of t moment1(t) a general service and L2(t) a urgency traffic does not discharge channel connection.System according to
After subsequent time Traffic prediction algorithm obtains setting Q (t+1) value, point following two situation does the subtle tune of channel distribution again
It is whole, high channel resource use ratio is mentioned, sufficiently to reduce the waste of satellite channel resource.
Divide following two situation:
31) L is worked as in situation 12(t)+L2(t+1) when≤MAX-Q (t+1):
311)L2(t+1) a urgency traffic can be sequentially ingressed into Q (t+1)~MAX channel；
312)L1(t)+L1(t+1) a general service is sequentially ingressed into 0~Q (t+1) channel by calling sequence, and access system is total
Number L1(t)+L1(t+1)≤Q (t+1), works as L1(t)+L1(t+1) > Q (t+1), non-access service are waited in line；
32) L is worked as in situation 22(t)+L2(t+1) when > MAX-Q (t+1):
321)L2(t+1) a urgency traffic is successively lined up access system according to the precedence of calling, until urgency traffic
It is a that access sum reaches MAX-Q (t+1)；
322) residue L2(t)+L2(t+1)-(MAX-Q (t+1)) a urgency traffic and L1(t)+L1(t+1) a general service
Together, competition uses Q (t+1) a general traffic channel, specifically:
3221) work as L1(t)+L1(t+1)+L2(t)+L2(t+1)-(MAX-Q (t+1)) when≤Q (t+1):
L2(t)+L2(t+1)-(MAX-Q (t+1)) a urgency traffic priority access 0~Q (t+1) channel；L1(t)+L1(t+
1) a general service accesses 0~Q (t+1) channel according still further to calling sequence；
3222) work as L1(t)+L1(t+1)+L2(t)+L2(t+1)-(MAX-Q (t+1)) when > Q (t+1):
Since the priority of urgency traffic is higher, L2(t)+L2(t+1)-(MAX-Q (t+1)) a urgency traffic priority access
0~Q of system (t+1) channel；Remaining L1(t)+L1(t+1) a general service is believed according to 0~Q of calling sequence access system (t+1)
Road, until total access service number is Q (t+1)；The L not accessed2(t)+L2(t+1)-(MAX-Q(t+1)+L1(t)+L1(t+1)-
A business queuing of Q (t+1) waits；The process description of situation 1 and situation 2 is referring to Fig. 6.
Step 4: at the t+2 moment, the channel scheduling method at t+1 moment is reused；Work as t=t+2, according to the t+1 moment
The actual services number that the top n moment of sum is reached predicts the channel assignment parameters Q (t+2) at t+2 moment, arrives at the t+2 moment
When, further according to the L for needing to access1(t+2) a general service and L2(t+2) a urgency traffic carries out the micro-adjustment of channel distribution.In
Each t+2 later moment also uses same method.Total flow diagram is as shown in Figure 7.
Claims (1)
1. a kind of dispatching method of the access up channel of VDES system, method includes the following steps:
Step 1: business classification and channel setting:
11) assume a business one channel of corresponding access, it is specified that all types of service are divided into general service and urgency traffic two
Class；
12) uplink for setting VDES system Satellite then can allow to access with access total number of channels as MAX at all moment
Maximum traffic quantity be MAX, i.e. a channel can correspond to access one business；If Q is the channel distribution adaptive thresholding of setting
Value, as the boundary of general service and urgency traffic, and 0~Q is general traffic channel, and Q~MAX is urgency traffic channel；
13) it is located at some moment t, has there is L1(t) a general service and L2(t) a urgency traffic accesses and link does not discharge；
When the t+1 moment arrives, there is L1(t+1) a general service and L2(t+1) a urgency traffic needs access system；In this regard, then originally connecing
The dispatching method for entering up channel is subsequent three steps；
Step 2: according to the business number that the top n moment of t moment sum is reached, the channel distribution threshold value Q (t+ at t+1 moment is predicted
1), and the adjustment that the up channel at t+1 moment distributes is made.
21) in moment t by the general service L of access1(t) and urgency traffic L2(t) it is buffered in the buffer zone of VDES system；
22) traffic forecast that the t+1 moment is carried out by the number of services of the buffer zone, then according to traffic forecast
Value, set the t+1 moment Q (t+1) value, come carry out in advance the t+1 moment channel resource distribution；Specifically comprise the following steps:
221) the urgency traffic quantity at t+1 moment is predicted using adaptive minimal error algorithm, specifically:
Step 1: initialization weight coefficient Wi(t), the actual quantity of the urgency traffic at the t-i moment stored in buffer queue is read
X (t-i) and L2(t), wherein i=1,2, L, N；L2(t-i) practical urgency traffic quantity of the representative at the t-i moment, i.e. x (t-i)=
L2(t-i)；
Step 2: calculatingCalculate error e (t)=L2(t)-y(t)；As e (t) > δ, calculate because
Sub- μ e (t), wherein μ is the gain constant for controlling adaptive speed and stability, usually takes 10-3:10-1Between positive number, update
N number of weight coefficient W of filteri(t), and the weight coefficient W at t+1 moment is predictedi(t+1), that is, W is calculatedi(t)=Wi(t)+2μe
(t) x (t) and Wi(t+1)=Wi(t+1)+2μe(t)x(t)；
Step 3: returning to second step, it is cyclically updated Wi(t), make to export y (t) and L2(t) error e (t) between constantly reduces, directly
To e (t)≤δ, end loop；
Step 4: predicting the urgency traffic quantity at t+1 moment according to the top n moment urgency traffic quantity at t+1 momentThe urgency traffic quantity at the t+1-i moment stored in x (t+1-i) buffer queue, Wi(t
It+1) is the weight coefficient at t+1 moment；
222) according to y (t+1), system call interception distributes to the number of channel of urgency traffic, guarantees the priority access of urgency traffic, that is, sets
Determine Q (t+1) value, Q (t+1)=MAX-y (t+1)；
Step 3: according to the business number L really reached at t+1 moment1(t+1) and L2(t+1), then the up channel at t+1 moment is done
The micro-adjustment of distribution；
Divide following two situation:
31) L is worked as in situation 12(t)+L2(t+1) when≤MAX-Q (t+1):
311)L2(t+1) a urgency traffic can be sequentially ingressed into Q (t+1)~MAX channel；
312)L1(t)+L1(t+1) a general service is sequentially ingressed into 0~Q (t+1) channel, access system sum L by calling sequence1
(t)+L1(t+1)≤Q (t+1), works as L1(t)+L1(t+1) > Q (t+1), non-access service are waited in line；
32) L is worked as in situation 22(t)+L2(t+1) when > MAX-Q (t+1):
321)L2(t+1) a urgency traffic is successively lined up access system according to the precedence of calling, until urgency traffic accesses
It is a that sum reaches MAX-Q (t+1)；
322) residue L2(t)+L2(t+1)-(MAX-Q (t+1)) a urgency traffic and L1(t)+L1(t+1) a general service together,
Competition uses Q (t+1) a general traffic channel, specifically:
3221) work as L1(t)+L1(t+1)+L2(t)+L2(t+1)-(MAX-Q (t+1)) when≤Q (t+1):
L2(t)+L2(t+1)-(MAX-Q (t+1)) a urgency traffic priority access 0~Q (t+1) channel；L1(t)+L1(t+1) a general
Logical business accesses 0~Q (t+1) channel according still further to calling sequence；
3222) work as L1(t)+L1(t+1)+L2(t)+L2(t+1)-(MAX-Q (t+1)) when > Q (t+1):
Since the priority of urgency traffic is higher, L2(t)+L2(t+1)-(MAX-Q (t+1)) a urgency traffic priority access system 0
~Q (t+1) channel；Remaining L1(t)+L1(t+1) a general service is according to calling sequence access system 0~Q (t+1) channel, until
Total access service number is Q (t+1)；The L not accessed2(t)+L2(t+1)-(MAX-Q(t+1)+L1(t)+L1(t+1)-Q(t+1)
A business queuing waits；
Step 4: at the t+2 moment, the channel scheduling method at t+1 moment is reused；It at each moment after t+2, also adopts
With same method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910841005.XA CN110519859B (en) | 2019-09-06 | 2019-09-06 | Scheduling method for accessing uplink channel of VDES system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910841005.XA CN110519859B (en) | 2019-09-06 | 2019-09-06 | Scheduling method for accessing uplink channel of VDES system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110519859A true CN110519859A (en) | 2019-11-29 |
| CN110519859B CN110519859B (en) | 2021-04-27 |
Family
ID=68630074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910841005.XA Active CN110519859B (en) | 2019-09-06 | 2019-09-06 | Scheduling method for accessing uplink channel of VDES system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110519859B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111372320A (en) * | 2020-04-08 | 2020-07-03 | 成都爱科特科技发展有限公司 | Ship VDES communication system and method for channel scheduling |
| CN111565465A (en) * | 2020-04-08 | 2020-08-21 | 成都爱科特科技发展有限公司 | Scheduling and distributing method for satellite-ground channel of VDES (virtual disk evolution system) |
| CN113891473A (en) * | 2021-10-21 | 2022-01-04 | 上海德寰通信技术有限公司 | Data channel resource allocation method, satellite, ship station and system |
| CN116915309A (en) * | 2023-06-29 | 2023-10-20 | 葳迪易(苏州)信息科技有限公司 | Ship-star link frequency dynamic allocation method of VDES system |
| CN117241387A (en) * | 2023-11-14 | 2023-12-15 | 天津讯联科技有限公司 | Communication scheduling method according to VDES message type and priority |
| CN117824314A (en) * | 2023-12-29 | 2024-04-05 | 山东中科绿碳科技有限公司 | Cleaning device for eliminating scale deposit of condensation tube array on inner wall of carbonization tower |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618674A (en) * | 2013-10-24 | 2014-03-05 | 上海交通大学 | A united packet scheduling and channel allocation routing method based on an adaptive service model |
| CN107040390A (en) * | 2017-06-01 | 2017-08-11 | 上海埃威航空电子有限公司 | The marine wireless chart update system and method for intermediate frequency |
| CN108055205A (en) * | 2018-01-26 | 2018-05-18 | 武汉理工大学 | It is used to implement the Routing Protocol and method for routing of VDES |
-
2019
- 2019-09-06 CN CN201910841005.XA patent/CN110519859B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618674A (en) * | 2013-10-24 | 2014-03-05 | 上海交通大学 | A united packet scheduling and channel allocation routing method based on an adaptive service model |
| CN107040390A (en) * | 2017-06-01 | 2017-08-11 | 上海埃威航空电子有限公司 | The marine wireless chart update system and method for intermediate frequency |
| CN108055205A (en) * | 2018-01-26 | 2018-05-18 | 武汉理工大学 | It is used to implement the Routing Protocol and method for routing of VDES |
Non-Patent Citations (2)
| Title |
|---|
| GRADIANT, VIGO ET AL.: "Field trials of the VHF data exchange system (VDES) satellite downlink component", 《ICSSC 2018》 * |
| 姚治萱: "V D ES通信技术应用及其发展趋势", 《世界海运-航海技术》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111372320A (en) * | 2020-04-08 | 2020-07-03 | 成都爱科特科技发展有限公司 | Ship VDES communication system and method for channel scheduling |
| CN111565465A (en) * | 2020-04-08 | 2020-08-21 | 成都爱科特科技发展有限公司 | Scheduling and distributing method for satellite-ground channel of VDES (virtual disk evolution system) |
| CN111565465B (en) * | 2020-04-08 | 2023-04-07 | 成都爱科特科技发展有限公司 | Scheduling and distributing method for satellite-ground channel of VDES (virtual disk evolution system) |
| CN113891473A (en) * | 2021-10-21 | 2022-01-04 | 上海德寰通信技术有限公司 | Data channel resource allocation method, satellite, ship station and system |
| CN113891473B (en) * | 2021-10-21 | 2023-11-03 | 上海德寰通信技术有限公司 | Data channel resource allocation method, satellite, ship station and system |
| CN116915309A (en) * | 2023-06-29 | 2023-10-20 | 葳迪易(苏州)信息科技有限公司 | Ship-star link frequency dynamic allocation method of VDES system |
| CN117241387A (en) * | 2023-11-14 | 2023-12-15 | 天津讯联科技有限公司 | Communication scheduling method according to VDES message type and priority |
| CN117241387B (en) * | 2023-11-14 | 2024-01-26 | 天津讯联科技有限公司 | Communication scheduling method according to VDES message type and priority |
| CN117824314A (en) * | 2023-12-29 | 2024-04-05 | 山东中科绿碳科技有限公司 | Cleaning device for eliminating scale deposit of condensation tube array on inner wall of carbonization tower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110519859B (en) | 2021-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110519859A (en) | A kind of dispatching method of the access up channel of VDES system | |
| CN100375467C (en) | Scheduler with fairness control and quality of service support | |
| CN101369956B (en) | Method and communication system for scheduling resource through scheduling information | |
| CN111565465B (en) | Scheduling and distributing method for satellite-ground channel of VDES (virtual disk evolution system) | |
| CN110808920B (en) | Satellite communication flow control method with coexistence of CCSDS frame and IP message | |
| CN101262651A (en) | Base station downlink data dispatching method and system in broadband wireless MAN | |
| CN103596224A (en) | Resource scheduling method based on multistage mapping in high-speed mobile environment | |
| CN109962858A (en) | CAN bus data transmission method and control system | |
| CN106685516A (en) | Data transmission system based on the space-based communication | |
| CN104184514A (en) | Bandwidth allocation method used for satellite network | |
| CN106028463A (en) | Satellite-borne dynamic spectrum resource scheduling method based on service rate control | |
| CN100369524C (en) | CDMA system up-bag dispatching method | |
| CN211352458U (en) | Ship VDES communication system for channel scheduling | |
| CN115766592A (en) | Flow rate limiting method based on priority, DPU message forwarding method and device | |
| CN112988354B (en) | Satellite communication system outbound resource optimization management method | |
| CN117119522A (en) | Message transmission method for LTE-V2X packet priority | |
| CN111372320A (en) | Ship VDES communication system and method for channel scheduling | |
| CN109617835A (en) | A kind of multipriority slot allocation method suitable for centralized TDMA network | |
| CN114257291B (en) | Satellite VDE channel resource management system | |
| CN100525245C (en) | Device and method for multi-service grouping data dispatching | |
| CN113630901B (en) | Dynamic multi-priority self-adaptive back-off algorithm in heterogeneous wireless network | |
| CN113923721B (en) | Unmanned aerial vehicle multi-load data interaction system and data transmission management and control method thereof | |
| CN106060952B (en) | LTE dispatching method based on loaded self-adaptive | |
| CN116915309B (en) | Ship-star link frequency dynamic allocation method of VDES system | |
| CN101820681B (en) | Scheduling method and device of eUE |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200713 Address after: 277600 C-20 Qingshan Road Bishui Mingzhu District, Weishan County Economic Development Zone, Jining City, Shandong Province Applicant after: Shandong Xingtong Easy Aviation Communication Technology Co.,Ltd. Applicant after: Shanghai Spaceflight Institute of TT&C And Telecommunication Address before: 277600 C-20 Qingshan Road Bishui Mingzhu District, Weishan County Economic Development Zone, Jining City, Shandong Province Applicant before: Shandong Xingtong Easy Aviation Communication Technology Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230417 Address after: 277600 second floor, Huabai Zhongchuang space, economic development zone, Weishan County, Jining City, Shandong Province Patentee after: Shandong Xingtong Easy Aviation Communication Technology Co.,Ltd. Address before: 277600 C-20 Qingshan Road Bishui Mingzhu District, Weishan County Economic Development Zone, Jining City, Shandong Province Patentee before: Shandong Xingtong Easy Aviation Communication Technology Co.,Ltd. Patentee before: SHANGHAI SPACEFLIGHT INSTITUTE OF TT&C AND TELECOMMUNICATION |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A scheduling method for accessing uplink channels in VDES systems Effective date of registration: 20230724 Granted publication date: 20210427 Pledgee: China Construction Bank Corporation Weishan sub branch Pledgor: Shandong Xingtong Easy Aviation Communication Technology Co.,Ltd. Registration number: Y2023980049531 |