CN102651754A - Method, equipment and system for white board content sharing - Google Patents
Method, equipment and system for white board content sharing Download PDFInfo
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- CN102651754A CN102651754A CN2011100470304A CN201110047030A CN102651754A CN 102651754 A CN102651754 A CN 102651754A CN 2011100470304 A CN2011100470304 A CN 2011100470304A CN 201110047030 A CN201110047030 A CN 201110047030A CN 102651754 A CN102651754 A CN 102651754A
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Abstract
The invention provides a method, equipment and a system for white board content sharing, and the system comprises the equipment and adopts the method. The method, which is used for sharing the white board content of a plurality of nodes in the same white board content sharing system, comprises the following steps: at least one node calculates node level which is sent to the a node with a token; whether the node with the token has the highest node level or not is confirmed; and in case the node with the token has the highest node level, the white board content of the node is shared with other nodes, otherwise, the token of the node is sent to the node with the highest node level, and the node with the highest level shares the white board content to other nodes.
Description
Technical field
The present invention relates to a kind of blank content sharing method, blank content sharing equipment and system, and relate to a kind of being used for particularly at the blank content sharing method that is in content shared between a plurality of nodes of same blank content share system, a kind of node that is arranged in the blank content share system and to blank content sharing equipment and a kind of blank content share system that comprises said blank content sharing equipment and carry out said blank content sharing method of other nodes sharing blank content that is in this blank content share system.
Background technology
At present, blank content sharing technology is applied in the teleconference gradually.In the blank content share system; Through combining as a node with blank (whiteboard), camera, projecting apparatus and such as the equipment of personal computer etc.; The meeting participant writes or wipes content on local blank; Through the local blank content of camera; Captured local blank content is sent to another meeting participant, and will project on the local blank from the blank content that said another meeting participant receives, thereby can be implemented in two blank content sharing between the node through projecting apparatus.That is to say that existing blank content share system adopts the synchronization mechanism of a kind of reciprocating type (ping-pang), it only can support two nodes between a session.
Along with transaction is heavy day by day; In teleconference, often tend to exist a plurality of meeting participants; Promptly; A plurality of nodes, existing blank content share system can't solve the problem that between a session, has a plurality of nodes, thereby can not satisfy the needs that carry out the blank content sharing at a plurality of nodes.
In order between a plurality of nodes, to carry out the blank content sharing; Consider to use client/server mechanism; In view of a plurality of client nodes must send to its relevant information server and carry out various information processings at this server place and the blank content sharing that will share is given all clients; Processing load at the server place will be quite high; Its processing delay and data transmission lag etc. all will influence the speed and the efficient of blank content sharing, so server will become the bottleneck in the blank content share system.In addition, server maintenance also is a problem will considering.Therefore, client/server mechanism can not satisfy the needs that carry out the blank content sharing at a plurality of nodes well.
Therefore, exist and can between a session, support the blank content sharing method of a plurality of nodes and the needs of system for a kind of, and for a kind of can be to the needs of the blank content sharing equipment of a plurality of other nodes sharing blank contents.
Summary of the invention
Consider the problems referred to above and proposed the present invention.An object of the present invention is to provide a kind of blank content sharing method; It can be in a plurality of nodes in being in same blank content share system at least one node place calculate the node grade of this node; Dynamically select to have the node of high node grade at node place with token; The node of this high node grade becomes owner of a token (token holder) and gives other node with its blank content sharing, thereby is implemented in Sharing Whiteboard content between a plurality of nodes.
According to an aspect of the present invention; A kind of blank content sharing method is provided; Be used for being in Sharing Whiteboard content between a plurality of nodes of same blank content share system; This blank content sharing method comprises: at least one node in said a plurality of nodes calculates the node grade of this node according to the predetermined attribute of this node, and sends it to the node that has token in said a plurality of node; Said node with token confirms according to himself node grade and the node grade that is received whether it has high node grade; Have at said node with token under the situation of high node grade, this node with high node grade is given other node with its blank content sharing; And do not have under the situation of high node grade at said node with token; Said node with token sends to the node with high node grade with token, and said node with high node grade is given other node with its blank content sharing.
Preferably; In blank content sharing method according to the present invention; Said node with token confirms that its step that whether has high node grade comprises: said node with token is created overall routing table according to node grade of himself and the node grade that is received; Said node with token is inquired about high node grade in the overall routing table of being created; And said node with token confirms whether it has this high node grade.
Preferably; In blank content sharing method according to the present invention; Also comprise: do not have at said node with token under the situation of high node grade, said node with token sends to said node with high node grade with the overall routing table of being created.
In blank content sharing method according to the present invention, preferably, said predetermined attribute comprises at least one in content changing rate, focus distance, token stand-by period and the node transmission speed.
Preferably, in said at least one node, current blank content in this node place and the blank content of being shared are recently subtracted each other,, thereby calculate said content changing rate so that confirm the blank content changing scope at this node place.
Preferably; In said at least one node, utilize the current focus and the last focus at this node place to confirm said focus distance; Said current focus is the blank content area of being confirmed by the said blank content changing scope at this node place, and said last focus is recently by blank content of sharing and the blank content area of before it, being confirmed by the difference of the blank content of sharing by said.
Preferably; In said at least one node; Content changing rate, focus distance, token stand-by period and the node transmission speed at this node place are sued for peace after the weighting respectively; Calculating the node grade of this node, and said weighting satisfy below relation: the weight of the weight of the weight of the weight of content changing rate＞token stand-by period＞node transmission speed＞focus distance.
In addition; Another object of the present invention provides a kind of blank content sharing equipment; It is arranged in a node of blank content share system; And calculate its node grade according to the predetermined attribute of this node, whether the situation that has a token at this node this node that judges has high node grade, and then realizes that according to said judged result the blank content sharing at this node place or the token at this node place send.
According to a further aspect in the invention; A kind of blank content sharing equipment is provided; It is arranged in a node of blank content share system; And be used for comprising to other nodes sharing blank content that is in this blank content share system: node rating calculation device is used for the node grade according to this node of predetermined attribute calculating of this node; Node grade receiving system is used for having under the situation of token the node grade that receives respective nodes from least one other node of this blank content share system at this node; High node grade is confirmed device, is used under this node has the situation of token, confirming whether this node has high node grade; Blank content sharing device is used for having token and having under the situation of high node grade at this node giving other node with the blank content sharing of this node; And the token dispensing device, be used for having token and not having under the situation of high node grade token is sent to the node with high node grade at this node.
Preferably,, also comprise according to blank content sharing equipment of the present invention: overall routing table creation apparatus, be used for having under the situation of token according to node grade of himself and the node grade that is received at this node, create overall routing table.
In addition, said high node grade confirms that device inquires about high node grade in the overall routing table of being created, and confirms whether this node has this high node grade.
Preferably, according to blank content sharing equipment of the present invention, also comprise: node grade dispensing device is used for not having under the situation of token the node grade of this node is sent to the node with token at this node; And the token receiving system, be used for not having token and having under the situation of high node grade and receive token from the node that sends token at this node.
In blank content sharing equipment according to the present invention, preferably, said predetermined attribute comprises at least one in content changing rate, focus distance, token stand-by period and the node transmission speed.
Preferably, said node rating calculation parts subtract each other current blank content in this node place and the blank content of being shared recently, so that confirm the blank content changing scope at this node place, thereby calculate said content changing rate.
Preferably; Said node rating calculation parts utilize current focus and last focus to confirm said focus distance; Said current focus is the blank content area of being confirmed by the said blank content changing scope at this node place, and said last focus is recently by blank content of sharing and the blank content area of before it, being confirmed by the difference of the blank content of sharing by said.
Another purpose of the present invention provides a kind of blank content share system, wherein can be implemented in Sharing Whiteboard content between a plurality of nodes.
According to another aspect of the invention; A kind of blank content share system that comprises a plurality of nodes is provided; Each node comprises according to blank content sharing equipment of the present invention, and in this blank content share system, carries out according to blank content sharing method of the present invention.
The blank content sharing method of above-mentioned aspect and blank content share system according to the present invention; According to the node grade of at least one the node place in a plurality of nodes in this blank content share system based on the predetermined attribute calculating of this node; Dynamically select to have the node of high node grade at node place with token; Promptly to share the node of its blank content; The node of this high node grade becomes owner of a token and gives other node with its blank content sharing, thereby is implemented in token transmission and blank content sharing between a plurality of nodes of this blank content share system.
The blank content sharing method of above-mentioned aspect, blank content sharing equipment and blank content share system according to the present invention; Through token being introduced in the blank content share system; Which node is current in a plurality of nodes that can dynamically confirm in the blank content share system, to comprise can be to other nodes sharing blank content, and has also avoided the bottleneck problem at server place under the client terminal/server structure.
Description of drawings
In conjunction with the drawings embodiments of the invention are described in detail, above and other objects of the present invention, characteristic, advantage will become apparent, wherein:
Fig. 1 illustrates the blank content share system according to the embodiment of the invention.
Fig. 2 illustrates the blank content sharing method according to the embodiment of the invention.
Fig. 3 illustrates the example flow of the step S202 in the blank content sharing method shown in Figure 2.
Fig. 4 illustrate according in the blank content sharing method of the embodiment of the invention with the classification example of a plurality of node hierarchies.
Fig. 5 (A) and (B) illustrate according to the example of calculating the content changing scope in the blank content sharing method of the embodiment of the invention.
Fig. 6 illustrates the blank content sharing equipment according to the embodiment of the invention.
Fig. 7 illustrates the improvement to blank content sharing equipment shown in Figure 6.
Fig. 8 illustrates another improvement to blank content sharing equipment shown in Figure 6.
Fig. 9 (A)-(G) illustrates the example according to the workflow of blank content sharing in the blank content share system of the embodiment of the invention.
Embodiment
Blank content sharing method and blank content share system and blank content sharing equipment according to the embodiment of the invention are described below with reference to accompanying drawings.
At first, will the blank content share system 100 according to the embodiment of the invention be described with reference to figure 1.This blank content share system 100 except comprise the user can be on its corresponding blank written contents or the common blank content sharing node R 1, R2, R3 and the R4 that wipe content (hereinafter; Abbreviate ordinary node as) outside, can also comprise blank content sharing node R 5, R6 and R8 and the read-only node R 7 of other type.
Common blank content sharing node R 1, R2, R3 and R4 can comprise the user above that written contents or wipe content blank, be used to catch the blank content camera/, be used for the blank content that is received is projected to projecting apparatus and the equipment with storage, processing and transmitting capacity such as personal computer on the blank.
Blank content sharing node R 5, R6 and the R8 of other type can comprise such as the display panel (multi-touch display board) of supporting multiple point touching (R8), equipment electronics board (e-writer), personal digital assistant PDA (R5 and R6), cloud computing plate (cloud board) or the interactive projection appearance (interactiveprojector).
At read-only node place, the blank content is not made amendment, therefore not to its blank content of other nodes sharing.Read-only node can comprise PDA or smart phone (R7) etc.
Although not only comprised common blank content sharing node in the system as shown in Figure 1 but also comprised the blank content sharing node and the read-only node of other type, the invention is not restricted to this.Can only comprise common blank content sharing node according to blank content share system of the present invention, perhaps only comprise the blank content sharing node of other type.To be that example is introduced according to blank content sharing method of the present invention and blank content sharing equipment below with the ordinary node that comprises conventional white board.
When the user at written contents on the blank or when blank is wiped content, the blank content changes.Yet at short notice, the blank content changing is not too large.Therefore; According to practical application; Can design the suitable time interval, have that node R 1, R2, R3 and the R4 of blank is every to utilize camera/separately to catch blank content separately at a distance from this time interval, and in according to the blank content share system of the embodiment of the invention operation once according to the blank content sharing method of the embodiment of the invention; That is: at the node R with blank 1, R2, R3 and R4 place, calculate node grade separately based on separately predetermined attribute; At node place, confirm to have among R1, R2, R3 and the R4 node of high node grade with token; And the node with high node grade becomes owner of a token and gives other node with its blank content sharing.
To the blank content sharing method 200 according to the embodiment of the invention be described with reference to figure 2.
At step S201; In a plurality of nodes of this blank content share system, can on blank, perhaps wipe each node of content by written contents from blank; Calculate the node grade of this node according to the predetermined attribute of this node, and under this node does not have the situation of token, the node grade of being calculated is sent to the node that has token in said a plurality of node.As mentioned below, said predetermined attribute can comprise at least one in content changing rate, focus distance, token stand-by period and the node transmission speed.
Next, at step S202, said node with token confirms according to himself node grade and the node grade that is received whether it has high node grade.
If definite result of step S202 is " being ", this node that then has high node grade at step S203 is given other node with its blank content sharing.
Otherwise,, then token is sent to node with high node grade at the said node of step S204 with token if definite result of step S203 is " denying ".Subsequently, give other node at the said node of step S205 with its blank content sharing with high node grade.
Next, the example detailed flow of step S202 among Fig. 2 is described with reference to figure 3.
As shown in Figure 3, at step S2301, said node with token is created overall routing table according to the node grade of himself with the node grade that is received.
As an example, each clauses and subclauses in the said overall routing table correspond respectively to a node, and comprise the sign ID of this node, the node grade of this node and the father node of this node.
T={ < ID, node grade, father node>}
Next, at step S2302, said node with token is inquired about high node grade in the overall routing table of being created.
Then, at step S2303, said node with token confirms whether it has this high node grade.
Although top combination Fig. 3 has provided the example that said node with token is created overall routing table and in the overall routing table of being created, inquired about high node grade, the invention is not restricted to this.One of ordinary skill in the art will readily recognize that said node with token can judge that its node grade is whether the highest and confirm whether it has high node grade through direct, and need not to carry out step S2301 and the S2302 among Fig. 3.
In addition; As improvement to blank content sharing method shown in Figure 2; Created under the situation of overall routing table at said node with token, said node with token can send to the node with high node grade with token and the overall routing table of being created together at step S204.Then, said node with high node grade is given respective nodes according to the overall routing table that is received with its blank content sharing at step S205.
As further improvement,, can with a plurality of node division in the blank content share system several ranks in order to reduce said data volume effectively with node place of high node grade to blank content sharing method shown in Figure 2.In this case, can also the overall routing table of being created be offered in a plurality of nodes of blank content share system and be in high level node.
For example; As shown in Figure 4; For simple system, can be three ranks with a plurality of node division in the blank content share system: have high node grade blank content sharing node, be first level node of father node and be the second level node of father node with blank content sharing node with one of first level node.
In this case; The node of sharing its blank content with high node grade is according to the overall routing table that is received; Its blank content sharing is given it be first level node of father node; Then, first level node is given it with the blank content sharing that is received in regular turn and is the second level node of father node.In addition, in this case, also the overall routing table of being created is offered said first level node.
In addition, can be more rank with a plurality of node division in the blank content share system as required, and with the similar mode of aforesaid way, one-level connects one-level ground Sharing Whiteboard content.
Yet, the invention is not restricted to this, said node with high node grade can directly be given other node with its blank content sharing at step S205.
To be that example specifies confirming according to the node grade of the embodiment of the invention with a node below.The node grade is the parameter of the priority of this nodes sharing blank content of expression.Confirm the node grade of this node according at least one item in the amount relevant, token stand-by period and the node transmission speed at this node place with content changing.The said amount relevant with content changing can comprise blank content changing rate.
Fig. 5 (A) and (B) illustrate according to the example of calculating the content changing rate in the blank content sharing method of the embodiment of the invention.
At this node place, every at a distance from given interval, catch the current blank content of the blank at this node place through the camera/at this node place, and it is stored.Next,, obtain blank content changing scope, thereby calculate the content changing rate through current blank content in this node place and the last blank content of being stored are subtracted each other.
For example,, current blank content and last blank content are carried out rgb value subtract each other, obtain blank content changing scope at this node place.In Fig. 5 (A), the letter among the rightest figure " B " is blank content changing scope, and correspondingly, in Fig. 5 (B), the letter among the rightest figure " C " is blank content changing scope.Said last blank content is the shared blank content of nearest quilt of being stored.
Can calculate the pixel RGB difference of pairing each pixel of blank content area according to following formula:
R(i，j)＝C(i，j)-P(i，j)(i＝0...m，j＝0...l) (1)
Wherein (i is that ((i is that ((i is that (m is total line number of blank content to pixel for i, RGB difference j), and l is total columns of blank content j) to R to pixel for i, last rgb value j) j) to P to pixel for i, current rgb value j) j) to C.
In addition, can according to following formula to R (i j) is provided with threshold value:
(i, during j) less than threshold value δ, (i j) is set to 0, and (i, during j) more than or equal to threshold value δ, (i j) is set to its absolute value with R as R with R as R.
Then, (i, j) value is confirmed blank content changing scope according to the R after the conversion.The number of pixels S that for example, can utilize the pixel rgb value to change
uThe size of representing blank content changing scope.
The number of pixels S that the pixel rgb value is changed
uTotal number-of-pixels S divided by the blank content area
r, promptly (m * l), so that obtain blank content changing rate, that is, and blank content changing percentage r=S
u/ S
r
Blank content changing rate is high more, shows that the wish of shared its blank content of this node requirement is strong more, correspondingly, should have the higher priority of sharing its blank content.
When the initial start of blank content share system, at this node place, this for example is empty by the blank content of sharing recently, perhaps the given blank content for being provided with according to making an appointment of each node.
Except blank content changing rate, the said amount relevant with content changing can also comprise the focus distance.At this node place, the meeting participant pay close attention to certain specific blank content area and in this specific blank content area written contents or wipe content, hereinafter, the blank content area that this is specific is called focus.
At this node place, the focus distance is the distance between current focus and the last focus.As stated, this current focus is the specific blank content area that receives publicity at this node place, that is, and and by the definite blank content area of the said blank content changing scope at this node place.Last focus is recently by blank content of sharing and the blank content area of before it, being confirmed by the difference of the blank content of sharing by said.
Still specify the calculating of confirming of focus and focus distance with reference to figure 5 (A) and Fig. 5 (B).
Shown in Fig. 5 (B), the most left figure expression current white plate content, middle graph is represented last blank content, that is, and the blank content that the nearest quilt of being stored is shared, and the rightest figure expression blank content changing scope.
In the rightest figure of Fig. 5 (B), the current blank content changing scope of letter " C " expression, tightly the zone around " C " is confirmed as current focus.According to actual needs, the zone around " C " can be any suitable shapes such as rectangle, circle, ellipse, rhombus, polygon.
In addition; Again define each figure among Fig. 5 (A), the said last blank content of the most left figure expression, promptly; The blank content that the nearest quilt of being stored is shared; Middle graph is represented the last blank content before the said last blank content, and that is promptly stored is right after before recently by the blank content of sharing by the blank content of sharing, and the rightest figure representes last blank content changing scope.
In the rightest figure of Fig. 5 (A), the last blank content changing scope of letter " B " expression, tightly the zone around " B " is confirmed as last focus.Equally, the zone around " B " can be any suitable shapes such as rectangle, circle, ellipse, rhombus, polygon.
Preferably, with the focus distance calculation between current focus and the last focus be between current focus and the last focus Euler apart from d=min{dist (B, C) }.In addition, can also be simply be the distance between the center of center and last focus of current focus with the focus distance calculation between current focus and the last focus.
Focus distance is more little, shows that the content changing of this node is high more with the degree of correlation of the current content of discussing, and correspondingly should have the priority of higher shared its blank content.
As stated, at this node place, store the blank content of current seizure, the blank content of being shared recently and be right after before by the blank content of sharing recently by the blank content of sharing.As replacement, at this node place, blank content and the last focus of also can store the blank content of current seizure, being shared recently.
In addition, as stated, except said content changing rate and focus distance, can also confirm the node grade of this node according to token stand-by period and node transmission speed.
The token stand-by period of this node is the stand-by period when having token from this node the last time.In certain embodiments, the token stand-by period is long more, shows that the hope of this its content of nodes sharing is strong more, correspondingly should have the higher priority of sharing its blank content.
Yet, different therewith, in further embodiments; Can one given threshold value be set for the token stand-by period; When the token stand-by period surpasses this given threshold value, can think that the hope of this its content of nodes sharing is very little, correspondingly should have the lower priority of sharing its blank content.As improvement, can also be according to actual needs for the token stand-by period be provided with a plurality of threshold values, in different threshold ranges, between the priority of token stand-by period and content shared, there is different incidence relations.
Therefore, can according to concrete needs define token stand-by period and node etc. the incidence relation of point between the grade.
In addition, when the node transmission speed is slow, give other node with its blank content sharing as soon as possible, can make this node have the higher priority of sharing its blank content in order to make this node.
When adopting content changing rate, focus distance, node transmission speed and the token at least one item in the stand-by period to confirm the node grade of node as parameter; The coefficient of each parameter can be set based on result of the test, perhaps also can in each blank content sharing session, confirm said coefficient adaptively.
As an example in each blank content sharing session, confirming said coefficient adaptively; When at the same time content changing rate, focus distance, node transmission speed and token stand-by period being confirmed the node grade of node as parameter, can confirm the node grade of node according to following formula:
Wherein, R
iBe the node grade of i node, r
iBe the content changing rate of i node, t
iBe the token stand-by period of i node, s
iBe the node transmission speed of i node, d
iBe the focus distance of i node, n is total ordinary node number, and α, β, γ, η are overall coefficient.
For example, confirm said overall alpha, β, γ, η according to the coefficient at each node place:
At each node place, calculate the alpha at this node place respectively
i, β
i, γ
i:
α
i＝f(S
ui)
β
i＝g(s
ui)
(4)
γ
i＝h(S
ui)
η
i＝c
S wherein
UiBe the number of pixels that i node place pixel rgb value changes, f (S
Ui), g (S
Ui) and h (S
Ui) all be S
UiFunction.
As an example, can respectively above-mentioned function be taken as:
Yet, also can said function be taken as other form, as long as satisfy α＞β＞γ＞η.Preferably, f (S
Ui) middle S
UiNumber of times be higher than g (S
Ui) middle S
UiNumber of times, g (S
Ui) middle S
UiNumber of times be higher than h (S
Ui) middle S
UiNumber of times.
Under the situation of confirming said parameter adaptively, correspondingly can between the node with token and other node, transmit the number of pixels that changes about each node place pixel rgb value or the alpha of each node place calculating as required
i, β
i, γ
iAnd so on information.Be not described in detail at this, so that do not obscure inventive concept of the present invention.
Although provided the concrete example that parameter is confirmed above; But the invention is not restricted to this; As stated, can according to concrete needs come to define respectively content changing rate, token stand-by period, focus distance, node transmission speed and node etc. put the incidence relation between the grade.
Next, the blank content sharing equipment of describing according to the embodiment of the invention with reference to figure 6 600.This blank content sharing equipment 600 is arranged in a node of blank content share system; And the predetermined attribute according to this node calculates its node grade; Whether the situation that has a token at this node this node that judges has high node grade, and then realizes that according to said judged result the blank content sharing at this node place or the token at this node place send.Particularly, this blank content sharing equipment 600 can be realized in projecting apparatus, in camera/, realizes, in the equipment such as personal computer, realizes, perhaps in special blank content sharing equipment, realize.Said special blank content sharing equipment can integrate projecting apparatus, camera/and said blank content sharing equipment 600.
This blank content sharing equipment 600 comprises: node rating calculation device 601, node grade receiving system 602, high node grade are confirmed device 603, blank content sharing device 604, token dispensing device 605 and token receiving system 606.
Node rating calculation device 601 calculates the node grade of this node according to the predetermined attribute of this node.As stated, said predetermined attribute can comprise at least one in content changing rate, focus distance, token stand-by period and the node transmission speed.
For example; This node rating calculation device 601 carries out RGB with the blank content of the current seizure of this node place storage with the shared blank content of the nearest quilt of being stored and subtracts each other; Obtain current content changing scope, and calculate current blank content changing rate and current focus thus; The blank content of being shared recently of being stored and being right after of being stored are carried out RGB by the blank content of sharing before recently by the blank content of sharing subtract each other, obtain last content changing scope, and confirm last focus thus.As replacement, to have stored at this node under the situation of last focus, this node rating calculation device 601 only calculates current blank content changing rate and current focus, and need not to calculate last focus again.Next, this node rating calculation device 601 based on the current focus that is calculated with calculated/the last focus stored, calculate the focus distance.
Then, node rating calculation device 601 calculates the node grade of this node according in the content changing rate of this node, focus distance, token stand-by period and the node transmission speed at least one.
Have at this node under the situation of token, other node of at least one from this blank content share system of node grade receiving system 602 receives the node grade of respective nodes.Have at this node under the situation of token, high node grade confirms that device 603 confirms according to himself node grade and the node grade that is received whether this node has high node grade.
Have token and have under the situation of high node grade at this node, blank content sharing device 604 is given other node with the blank content sharing of this node.On the other hand, have token at this node and do not have under the situation of high node grade, token dispensing device 605 sends to token the node with high node grade.
As stated; This blank content sharing equipment 600 is given other node with its blank content sharing having token and have under the situation of high node grade, and do not have only having token under the situation of high node grade token is not sent to the node with high node grade.
In Fig. 7, illustrated as improved blank content sharing equipment 700 blank content sharing equipment 600 shown in Figure 6.Except each device shown in Fig. 6, blank content sharing equipment 700 also comprises node grade dispensing device 706 and token receiving system 707.In Fig. 7, use with Fig. 6 in identical Reference numeral represent with Fig. 6 in identical device.
Do not have at this node under the situation of token, node grade dispensing device 706 sends to the node with token with the node grade of this node.
Do not have token and have under the situation of high node grade at this node, token receiving system 707 receives token from the node that sends token.
In Fig. 8, illustrated as another improved blank content sharing equipment 800 blank content sharing equipment 600 shown in Figure 6.Except the device shown in Fig. 6, blank content sharing equipment 800 also comprises overall routing table creation apparatus 808.In Fig. 8, use with Fig. 6 in identical Reference numeral represent with Fig. 6 in identical device.
Have at this node under the situation of token, overall routing table creation apparatus 808 is created overall routing table according to the node grade of himself with the node grade that is received.As stated, each clauses and subclauses in the said overall routing table correspond respectively to a node, and comprise the sign ID of this node, the node grade of this node and the father node of this node.
T={ < ID, node grade, father node>}
Next, said high node grade confirms that device 603 inquires about high node grade in the overall routing table of being created, and confirms whether this node has this high node grade.
Those skilled in the art understand easily; In blank content sharing equipment 600, do not comprise overall routing table creation apparatus 808, and can confirm that device 603 judges directly that its node grade is whether the highest and confirm whether it has high node grade through said high node grade.
Then, have token and have under the situation of high node grade at this node, blank content sharing device 604 is given other node according to the overall routing table of being created with its blank content sharing.
On the other hand, have token at this node and do not have under the situation of high node grade, token dispensing device 605 can send to the node with high node grade together with token and overall routing table.In the case; At the blank content sharing equipment 700 that is arranged in node place with high node grade; Token receiving system 707 receives token and overall routing table, and blank content sharing device 604 is given other node according to the overall routing table that is received with its blank content sharing.
As stated, in order to reduce said data volume effectively, can with a plurality of node division in the blank content share system several ranks with node place of high node grade.For example, be three other situation of level for a plurality of node division with in the blank content share system shown in Figure 4, blank content sharing device 604 is only given it with its blank content sharing and is first level node of father node according to the overall routing table that is received.
Yet, the invention is not restricted to this, blank content sharing device 604 can directly be given all other nodes in the said blank content share system with its blank content sharing, and need not with reference to overall routing table.
Should be appreciated that and to realize blank content sharing equipment of the present invention and blank content sharing method with the various forms of hardware, software, firmware, application specific processor or their combination.Preferably, the combination as hardware and software realizes blank content sharing equipment of the present invention and blank content sharing method.In addition, can be used as the application program that on program storage unit (PSU), visibly comprises and realize said software.Said application program can be uploaded to the machine that comprises any suitable framework and by its execution.Preferably, said machine has the hardware such as one or more CPU (" CPU "), random access memory (" RAM ") and I/O (" I/O ") interface.
In addition, it is also understood that because preferably realize component devices more illustrated in the accompanying drawings and method, so the mode that the actual connection between these component devices or the step can be programmed according to the present invention and difference with software.Provide the instruction here, those of ordinary skill in the related art can expect these and similarly realization or configuration of present principles.
Be that example is introduced the workflow according to embodiment of the invention blank content sharing method with the blank content share system that constitutes by three ordinary node R1, R2 and R3 below.
Shown in Fig. 8 (A), node R 1 is current to have token.At first, in node R 1, R2 and R3, calculate the node grade of each node respectively.Node R 2 sends to node R 1 with node R 3 with its node grade separately.
Shown in Fig. 8 (B), node R 1 confirms that according to the node grade of the node grade of himself and the node R that received 2 and node R 3 node R 1 has high node grade.Then, shown in Fig. 8 (C), node R 1 is given node R 2 and R3 with its blank content sharing.
After given interval, carry out again according to blank content sharing method of the present invention.Shown in Fig. 8 (D), node R 1 is current to have token, in node R 1, R2 and R3, calculates the node grade of each node respectively, and node R 2 sends to node R 1 with node R 3 with its node grade separately.
Shown in Fig. 8 (E), node R 1 confirms that according to the node grade of the node grade of himself and the node R that received 2 and node R 3 node R 2 has high node grade.
Next, shown in Fig. 8 (F), node R 1 sends to token the node R 2 with high node grade.Then, shown in Fig. 8 (G), node R 2 is given node R 1 and R3 with its blank content sharing.
As improvement, shown in Fig. 8 (B), node R 1 is created overall routing table according to the node grade of the node grade of himself and the node R that received 2 and node R 3, and confirms that according to the overall routing table of being created node R 1 has high node grade.Next, shown in Fig. 8 (C), node R 1 is given R2 and R3 according to the overall routing table of being created with its blank content sharing.
Then, shown in Fig. 8 (E), node R 1 is created overall routing table according to the node grade of the node grade of himself and the node R that received 2 and node R 3, and confirms that according to the overall routing table of being created node R 2 has high node grade.Next, shown in Fig. 8 (F), node R 1 sends to the node R 2 with high node grade with token and the overall routing table created.Then, shown in Fig. 8 (G), node R 2 is given node R 1 and R3 according to the overall routing table that is received with its blank content sharing.
Although is that background has been described blank content sharing method of the present invention, blank content sharing equipment at this with the ordinary node that comprises conventional white board, the invention is not restricted to this.It will be appreciated by those skilled in the art that; Blank content sharing method of the present invention also can be applied in the blank content sharing of other type that comprises the equipment such as the display panel of supporting multiple point touching, electronics board, cloud computing plate, interactive projection appearance as shown in Figure 1, and only these equipment can directly obtain its blank content and need not to catch its blank content and can show directly that the blank content that is received need not the blank content that is received through the projecting apparatus projection through camera/.
Below with reference to figure 4 being that example comes further to introduce the workflow according to blank content sharing method of the present invention by being divided into the blank content share system that other nine node R 1-R9 of three levels (comprising five ordinary node R1-R5 and four read-only node R 6-R9) constitute.
Node R 3 is current to have token.At first, in node R 1-R5, calculate the node grade of each node respectively, and node R 1, R2, R4 and R5 send to node R 3 with its node grade separately.
Next, node R 3 is created overall routing table according to node grade of himself and the node grade of the node R 1, R2, R4 and the R5 that are received, and confirms that according to the overall routing table of being created node R 1 has high node grade.For example, in the overall routing table of being created, the father node of ordinary node R2, R3 and R5 is a node R 1; And the father node of ordinary node R4 is a node R 2; The father node of read-only node R 6 is a node R 2, and the father node of read-only node R 7 and R8 is a node R 3, and the father node of read-only node R 9 is a node R 5.
Then; Node R 3 sends to the node R 1 with high node grade with token and the overall routing table created; And node R 1 directly shares its blank content to node R 2, R3 and R5; Node R 2 shares the blank content that is received to node R 4 and R6 again, and node R 3 is shared the blank content that is received to node R 7 and R8 again, and node R 5 is shared the blank content that is received to node R 9 again.In the case, also overall routing table is offered node R 2 and R5.Can directly the overall routing table of being created be offered node R 2 and R5 by R3, also can overall routing table be offered node R 2 and R5 by node R 1.
Yet, the invention is not restricted to this.According to above-mentioned instruction, one of ordinary skill in the art will readily recognize that according to actual needs, can be more rank with a plurality of node division in the blank content share system, and with the similar mode of aforesaid way, one-level connects one-level ground Sharing Whiteboard content.
Although read-only node is called not the node to its blank content of other nodes sharing in the above; Yet; Those skilled in the art understand easily; Read-only node can also be as other node of non-lowermost level to receive and to transmit the blank content from other nodes sharing except can be used as other node of lowermost level directly/indirectly to receive from the blank content of other nodes sharing.Further, read-only node even can transmit blank content to ordinary node from other nodes sharing.
Although illustrate and describe some embodiments of the present invention here, should be appreciated that said embodiment only is exemplary, and nonrestrictive.It will be appreciated by those skilled in the art that under the situation of the scope of the present invention that in not deviating from claim and equivalent thereof, limits and spirit, can make the variation on various forms and the details these exemplary embodiments.
Claims (10)
1. a blank content sharing method is used for being in Sharing Whiteboard content between a plurality of nodes of same blank content share system, and this blank content sharing method comprises:
At least one node in said a plurality of node calculates the node grade of this node according to the predetermined attribute of this node, and sends it to the node that has token in said a plurality of node;
Said node with token confirms according to himself node grade and the node grade that is received whether it has high node grade;
Have at said node with token under the situation of high node grade, this node with high node grade is given other node with its blank content sharing; And
Do not have at said node with token under the situation of high node grade, said node with token sends to the node with high node grade with token, and said node with high node grade is given other node with its blank content sharing.
2. blank content sharing method as claimed in claim 1, wherein, said node with token confirms that its step that whether has high node grade comprises:
Said node with token is created overall routing table according to node grade of himself and the node grade that is received;
Said node with token is inquired about high node grade in the overall routing table of being created; And
Said node with token confirms whether it has this high node grade.
3. blank content sharing method as claimed in claim 2 also comprises:
Do not have at said node with token under the situation of high node grade, said node with token sends to said node with high node grade with the overall routing table of being created.
4. blank content sharing method as claimed in claim 1, wherein, said predetermined attribute comprises at least one in content changing rate, focus distance, token stand-by period and the node transmission speed,
Wherein, in said at least one node, current blank content in this node place and the blank content of being shared are recently subtracted each other,, thereby calculate said content changing rate so that confirm the blank content changing scope at this node place; And
In said at least one node, utilize the current focus and the last focus at this node place to confirm said focus distance; Said current focus is the blank content area of being confirmed by the said blank content changing scope at this node place, and said last focus is recently by blank content of sharing and the blank content area of before it, being confirmed by the difference of the blank content of sharing by said.
5. blank content sharing method as claimed in claim 4; Wherein in said at least one node; Content changing rate, focus distance, token stand-by period and the node transmission speed at this node place are sued for peace after the weighting respectively; Calculating the node grade of this node, and said weighting satisfy below relation: the weight of the weight of the weight of the weight of content changing rate＞token stand-by period＞node transmission speed＞focus distance.
6. blank content sharing equipment, it is arranged in a node of blank content share system, and is used for comprising to other nodes sharing blank content that is in this blank content share system:
Node rating calculation device is used for the node grade according to this node of predetermined attribute calculating of this node;
Node grade receiving system is used for having under the situation of token the node grade that receives respective nodes from least one other node of this blank content share system at this node;
High node grade is confirmed device, is used under this node has the situation of token, confirming whether this node has high node grade;
Blank content sharing device is used for having token and having under the situation of high node grade at this node giving other node with the blank content sharing of this node; And
The token dispensing device is used for having token and not having under the situation of high node grade at this node token is sent to the node with high node grade.
7. blank content sharing equipment as claimed in claim 6 also comprises:
Overall situation routing table creation apparatus is used for having under the situation of token according to node grade of himself and the node grade that is received at this node, creates overall routing table,
Wherein, said high node grade confirms that device inquires about high node grade in the overall routing table of being created, and confirms whether this node has this high node grade.
8. blank content sharing equipment as claimed in claim 6 also comprises:
Node grade dispensing device is used for not having under the situation of token the node grade of this node is sent to the node with token at this node; And
The token receiving system is used for not having token and having under the situation of high node grade and receive token from the node that sends token at this node.
9. blank content sharing equipment as claimed in claim 6, wherein, said predetermined attribute comprises at least one in content changing rate, focus distance, token stand-by period and the node transmission speed,
Wherein, said node rating calculation parts subtract each other current blank content in this node place and the blank content of being shared recently, so that confirm the blank content changing scope at this node place, thereby calculate said content changing rate; And
Said node rating calculation parts utilize current focus and last focus to confirm said focus distance; Said current focus is the blank content area of being confirmed by the said blank content changing scope at this node place, and said last focus is recently by blank content of sharing and the blank content area of before it, being confirmed by the difference of the blank content of sharing by said.
10. blank content share system that comprises a plurality of nodes, each node comprise like the described blank content sharing of claim 6-9 equipment, and in this blank content share system, carry out like the described method of claim 1-5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110047030.4A CN102651754B (en) | 2011-02-28 | 2011-02-28 | Method, equipment and system for white board content sharing |
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| CN201110047030.4A CN102651754B (en) | 2011-02-28 | 2011-02-28 | Method, equipment and system for white board content sharing |
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| CN102651754B CN102651754B (en) | 2015-04-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281314A (en) * | 2013-05-13 | 2013-09-04 | 南昊（北京）科技有限公司 | Electronic whiteboard based on priority and interaction method thereof |
| WO2016173303A1 (en) * | 2015-04-29 | 2016-11-03 | 中兴通讯股份有限公司 | Shared file processing method and device |
| CN107533426A (en) * | 2016-01-05 | 2018-01-02 | 夸克逻辑股份有限公司 | The method and apparatus that simulation is used using numeral flag device, touch-control input and low-power reflected displaying device wall chart |
| CN111262874A (en) * | 2020-01-21 | 2020-06-09 | 北京梦想加信息技术有限公司 | Writing board information sharing method and system and writing board |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI547824B (en) * | 2014-12-16 | 2016-09-01 | 緯創資通股份有限公司 | Method of sharing control right adapted to interactive whiteboard system and host device thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1365460A (en) * | 1999-06-30 | 2002-08-21 | 西尔弗布鲁克研究股份有限公司 | Method and system for conferencing |
| JP2006031359A (en) * | 2004-07-15 | 2006-02-02 | Ricoh Co Ltd | Screen sharing method and conference support system |
| JP2006164177A (en) * | 2004-12-10 | 2006-06-22 | Ricoh Co Ltd | Electronic conference system |
-
2011
- 2011-02-28 CN CN201110047030.4A patent/CN102651754B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1365460A (en) * | 1999-06-30 | 2002-08-21 | 西尔弗布鲁克研究股份有限公司 | Method and system for conferencing |
| JP2006031359A (en) * | 2004-07-15 | 2006-02-02 | Ricoh Co Ltd | Screen sharing method and conference support system |
| JP2006164177A (en) * | 2004-12-10 | 2006-06-22 | Ricoh Co Ltd | Electronic conference system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281314A (en) * | 2013-05-13 | 2013-09-04 | 南昊（北京）科技有限公司 | Electronic whiteboard based on priority and interaction method thereof |
| WO2016173303A1 (en) * | 2015-04-29 | 2016-11-03 | 中兴通讯股份有限公司 | Shared file processing method and device |
| CN107533426A (en) * | 2016-01-05 | 2018-01-02 | 夸克逻辑股份有限公司 | The method and apparatus that simulation is used using numeral flag device, touch-control input and low-power reflected displaying device wall chart |
| CN111262874A (en) * | 2020-01-21 | 2020-06-09 | 北京梦想加信息技术有限公司 | Writing board information sharing method and system and writing board |
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| CN102651754B (en) | 2015-04-29 |
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