CN108011992A - A kind of Internet of Things implementation method of low latency - Google Patents
A kind of Internet of Things implementation method of low latency Download PDFInfo
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- CN108011992A CN108011992A CN201711274462.2A CN201711274462A CN108011992A CN 108011992 A CN108011992 A CN 108011992A CN 201711274462 A CN201711274462 A CN 201711274462A CN 108011992 A CN108011992 A CN 108011992A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
- H04W48/04—Access restriction performed under specific conditions based on user or terminal location or mobility data, e.g. moving direction, speed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/04—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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Abstract
The present invention provides a kind of Internet of Things implementation method of low latency, the Internet of Things includes couple in router, access node and mobile node；Each mobile node configures a wave point, which can be communicated using X channel, and the X channel of each mobile node is identical, and for each channel by channel id c unique marks, c values 1~X, X are the positive integer more than 1；Mobile equipment by method provided by the invention can quick obtaining data, so as to reduce data communication delays and cost, improve service quality.Present invention can apply to numerous areas such as agricultural engineerization, intelligent medicals, it is with a wide range of applications.
Description
Technical field
The present invention relates to the Internet of Things implementation method of a kind of implementation method, more particularly to a kind of low latency.
Background technology
In typical Internet of Things framework, an electronic tag has globally unique electronic code, is attached to thing
Destination object is identified on product.Current Internet of Things framework can track destination object well, but still have the following disadvantages：
1) user can only obtain target object information by database server, can not realize with destination object directly
Point to point link；
2) user can only inquire about the information of destination object, can not directly control the state of destination object；
3) target object information can only passively be read by reader, and destination object can not be according to current state actively
Request data is updated or sent a warning.
The present invention overcomes above-mentioned deficiency, so as to fulfill the real-time Communication for Power of Internet of Things data.
The content of the invention
Goal of the invention：The technical problems to be solved by the invention are in view of the deficiencies of the prior art, there is provided a kind of low latency
Internet of Things implementation method.
Technical solution：The invention discloses a kind of Internet of Things implementation method of low latency, the Internet of Things includes access road
By device, access node and mobile node；Each mobile node configures a wave point, which can use X channel
Communicate, the X channel of each mobile node is identical, and for each channel by channel id c unique marks, c values 1~X, X are big
In 1 positive integer；Couple in router, which configures a upstream wireline interface and Y downstream wireline interface, Y >=2X, each downstream, to be had
Line interface is by interface ID t unique marks, t=1 ... Y；Access node configures a upstream wireline interface and a downstream wirelessly connects
Mouthful, the upstream wireline interface of couple in router is connected with internet backbone, a downstream wireline interface of couple in router and
The upstream wireline interface of one access node is connected；The downstream wireless interface of access node is communicated using a kind of channel, should
The channel id of channel is h, X >=h >=1；Y downstream wireline interface of one couple in router connects Y access node, described to connect
The channel id collection of the communication channel of ingress is combined intoI values 1~X, U are union symbol, i.e., set includes X element, and 1 arrives X
Natural number；
Couple in router, access node and mobile node realize data communication by address, and the length of an address is
128 bits, are made of network prefix, geographical coordinate, access node ID and device id；
The upstream wireline interface of couple in router is identical with the network prefix of the address of downstream wireline interface and pre-sets,
Such as 30ab:a:b:c::/ 64, it is upstream wireline interface and downstream wireline interface configuration address after couple in router starts, its
In, the network prefix of the address of upstream wireline interface is pre-set network prefix, geographical coordinate 0, and access node ID is
0, device id Y+1；The network prefix of the address of each downstream wireline interface is pre-set network prefix, and geographical coordinate is
0, access node ID are 0, and device id is the interface ID of the downstream wireline interface；Couple in router is matched somebody with somebody for each downstream wireline interface
After putting address, a beacon message is sent from the downstream wireline interface, the source address of the beacon message is the downstream wireline interface
Address；
An address is respectively configured in the upstream wireline interface and downstream wireline interface of one access node；Access node is from upper
It is respectively that upstream wireline interface and downstream wireline interface configure an address, upper after trip wireline interface receives beacon message
In the address for swimming wireline interface, network prefix is equal to the network prefix of the source address of beacon message received, geographical coordinate and
Device id is 0, and access node ID is the device id of the source address of the beacon message received；The address of wireline interface in downstream
In, network prefix is equal to the network prefix of the source address of the beacon message received, and geographical coordinate is the current ground of access node
Coordinate is managed, device id 0, access node ID is the device id of the source address of the beacon message received；Access node is upstream
After wireline interface and downstream node configuration address, beacon message is periodically sent using the working channel of downstream wireline interface；At this
In beacon message, source address be downstream wireline interface address, load for broadcasting area parameter Hop, the initial value of parameter Hop it is pre-
First set, such as equal to 10；After mobile node receives a beacon message, by the broadcasting area parameter in the beacon message
Hop successively decreases 1；If parameter Hop is equal to 0, which stops forwarding the beacon message, otherwise forwards the beacon to disappear
Breath；
Mobile node safeguards that a channel table and address table, a channel list item include Channel ID field and channel domain；One
Address list item includes Channel ID field, access node address field, mobile node address field and life cycle domain；Couple in router is safeguarded
One device id set preserves the allocated device id；
After mobile node starts, the X channel that oneself interface is supported is built into a channel set, i.e., the channel set by
X channel is formed, and is then performed following processes and is created channel table：
Step 101：Start；
Step 102：Mobile node sets a variable h, and the initial value of the variable is 1；
Step 103：Mobile node randomly selects a channel from channel set, and creates a channel list item, the letter
The channel id of road list item is h, and channel value is the channel chosen；Mobile node deletes the channel of selection from channel set, and will
Variable h values are incremented by 1；
Step 104：Mobile node judges whether channel set is empty, if so, performing step 105, otherwise performs step
103；
Step 105：Terminate；
After mobile node starts, periodic scanning X channel is each one temporary address of channel configuration, the net of temporary address
Network prefix and access node ID are 0, and geographical coordinate is the coordinate of mobile node current geographic position, device id be more than 0 with
Machine number, then mobile node send a beacon message from the channel, the source address of the beacon message for the channel provisionally
Location, loads as sky；
In the method for the invention, if mobile node M1 receives one from access by the channel that channel id is c
The downstream wireline interface phase of the upstream wireline interface of the beacon message b1 of node AP1, access node AP1 and couple in router AR1
Even, then access node obtains address by following processes；
Step 201：Start；
Step 202：Mobile node M1 checks address table, if there is an address list item, the channel id of the address list item
For c, access node address thresholding is equal to the source address of beacon message b1, then performs step 203, otherwise performs step 204；
Step 203：Mobile node M1 selects channel id for the source of c and access node address thresholding equal to beacon message b1
The address list item of location, is arranged to maximum, such as 1s by the life cycle of the address list item, performs step 217；
Step 204：Mobile node M1 checks address table, if there is an address list item, the movable joint of the address list item
The network prefix of source address of the network prefix of dot address thresholding equal to beacon message b1, then perform step 205, otherwise perform step
Rapid 206；
Step 205：Source of the network prefix equal to beacon message b1 of mobile node M1 selection mobile nodes address thresholding
The address list item of the network prefix of location, then creates an address, the network prefix and access node ID of the address are equal to beacon
The network prefix and access node ID of the source address of message b1, geographical coordinate are the current geographical coordinates of mobile node M1, equipment
ID is the device id of the mobile node address thresholding of the address list item；Mobile node M1 creates an address list item, the address table
The channel id thresholding of item is c, and access node address thresholding is equal to the source address of beacon message b1, and mobile node address thresholding is equal to
The address of structure, performs step 217；
Step 206：Mobile node M1 creates an address, and the network prefix and access node ID of the address disappear equal to beacon
Cease the network prefix and access node ID of the source address of b1, geographical coordinate is the current geographical coordinates of mobile node M1, device id
For the random number more than 0；The channel that mobile node M1 is identified using channel id c sends a configuration message, the configuration message
Source address for structure address, destination address be beacon message b1 source address；
Step 207：If mobile node receives the configuration message, step 208 is performed, otherwise performs step 209；
Step 208：If receive configuration message mobile node the configuration message destination address geographical coordinate
One jump in the range of, then the configuration message is directly transmitted to the access node AP1 that destination address identified, otherwise configures this
Message is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step 207；
Step 209：After access node AP1 receives configuration message, which is forwarded by upstream wireline interface
The device id that couple in router AR1, couple in router AR1 check the source address of the configuration message is given whether in the device id of oneself
In set；If it is, performing step 210, step 211 is otherwise performed；
Step 210：Couple in router AR1 selects a not random number in the device id set of oneself, builds one
Configuration successful message, the source address of the configuration successful message are the destination address of the configuration message received, which disappears
The destination address of breath is the source address of the configuration message received, loads the random number for selection, then couple in router AR1 from
The downstream wireline interface that the access node ID of the destination address of the configuration message received is identified sends the configuration successful message,
And be added to the random number of selection in the device id set of oneself, perform step 212；
Step 211：Couple in router AR1 builds a configuration successful message, and the source address of the configuration successful message is to connect
The destination address of received configuration message, the destination address of the configuration successful message is the source address of the configuration message received,
Load as sky, the downstream wireline interface transmission then identified from the access node ID of the destination address of the configuration message received
The configuration successful message, and the device id of the source address of the configuration message received is added in the device id set of oneself；
Step 212：After access node AP1 receives configuration successful message, step 213 is performed, otherwise performs step 214；
Step 213：If access node AP1 is in a jump scope of the geographical coordinate of the destination address of the configuration successful message
It is interior, then the configuration successful message is transmitted to by the mobile node M1 that destination address identified by downstream wireline interface, otherwise led to
Cross downstream wireline interface and the configuration successful message is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；
Perform step 212；
Step 214：If mobile node M1 receives configuration successful message, step 216 is performed, otherwise performs step
215；
Step 215：If receive the destination address of the mobile node of configuration successful message in the configuration successful message
In the range of the one of geographical coordinate jumps, then the configuration successful message is directly transmitted to the mobile node M1 that destination address identified,
Otherwise the configuration successful message is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step
212；
Step 216：After mobile node M1 receives configuration successful message by the channel that channel id is c, if be configured to
Work(Message Payload is sky, then creates an address list item, the channel id of the address list item is c, and access node address thresholding is equal to
The source address of the configuration successful message, mobile node address thresholding are equal to the destination address of the configuration successful message；Otherwise, it is mobile
Node M 1 creates an address, and the network prefix and access node ID of the address are equal to the destination address of the configuration successful message
Network prefix and access node ID, geographical coordinate are geographical coordinate current mobile node M1, and device id disappears for the configuration successful
The random number in load is ceased, then mobile node M1 creates an address list item, and the channel id of the address list item is c, access section
Dot address thresholding is equal to the source address of the configuration successful message, and mobile node address thresholding is equal to the address created；
Step 217：Terminate.
Mobile node can be with rapid configuration address so as to obtain data by the above process.
In the method for the invention, if mobile node M1 detects that the life cycle of address list item E1 decays to 0, hold
Row operations described below reclaimer ID；
Step 301：Start；
Step 302：Mobile node M1 checks address table, if there is another address table in addition to address list item E1
The network prefix of mobile node address thresholding of the network prefix of the mobile node address thresholding of item equal to address list item E, then hold
Row step 307, otherwise performs step 303；
Step 303：The channel that mobile node M1 is identified by the channel id of address list item E1 sends a deletion message,
The source address of the deletion message is the mobile node address thresholding of address list item E1, and destination address is the access section of address list item E1
Dot address thresholding, loads as sky；Mobile node M1 deletes address list item E1 from address table；
Step 304：If mobile node receives the deletion message, step 305 is performed, otherwise performs step 306；
Step 305：If receive delete message mobile node the deletion message destination address geographical coordinate
One jump in the range of, then the deletion message is directly transmitted to the purpose access node that destination address identified, performs step
306, otherwise which is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address, perform step
304；
Step 306：After purpose access node receives deletion message, which is forwarded by upstream wireline interface
To the couple in router of connection, after couple in router receives deletion message, the deletion is deleted from the device id set of oneself
The device id of the source address of message；
Step 307：Terminate.
The above process can realize address recycling so that it is guaranteed that mobile node can successfully obtain configuration address.
In the method for the invention, in a type of data by data ID unique marks, a type of data can
More than one data block is broken down into, each data block is identified by data block ID, and data D1 is uniquely marked by data ID DID1
Know, the length of data D1 is more than predetermined value, such as the condition that can be communicated by X channel of interface of 1GB, mobile node M1
Under, after mobile node M1 produces data D1, address table is checked, if the address list item sum in address table is Z, mobile node M1
Data D1 is averagely divided into Z data block Ck, k 1~Z of value, data block CkBy data block ID k unique marks；Then move
Node M 1 is uploaded onto the server data D1 S1 by following processes：
Step 401：Start；
Step 402：The initial value of mobile node M1 arrange parameters c1 and parameter k1, parameter c1 and parameter k1 are 1；
Step 403：Mobile node M1 selection channel id thresholdings are equal to all address list items of c1, for the ground of each selection
Location list item, mobile node M1 perform operations described below：A data-message is built, the source address of the data-message is the address list item
Mobile node address thresholding, destination address be the address list item access node address thresholding, load for data ID DID1,
The data block C of data block ID k1, data block ID k1 markk1And the address of server S 1, from the channel id of the address list item
The channel identified sends the data-message, while parameter k1 is incremented by 1；
Step 404：Parameter c1 is incremented by 1 by mobile node M1, if parameter c1 is more than X, is performed step 405, is otherwise held
Row step 403；
Step 405：If mobile node receives the data-message, step 406 is performed, otherwise performs step 407；
Step 406：If receive the geographical coordinate of the mobile node of data-message in the destination address of the data-message
One jump in the range of, then the data-message is directly transmitted to the purpose access node that destination address identified, otherwise counts this
The neighboring mobile node nearest apart from the geographical coordinate of destination address is transmitted to according to message；Perform step 405；
Step 407：After purpose access node receives data-message, the destination address of the data-message is updated to the number
According to server S in Message Payload 1 address and from Message Payload delete server S 1 address, then connect by the way that upstream is wired
Mouthful data-message is transmitted to connected couple in router, couple in router after downstream wireline interface receives data-message,
The data-message is forwarded by upstream wireline interface, which eventually arrives at server S 1 by internet backbone；
Step 408：After server S 1 receives data-message, the data block in data-message is preserved, if server S 1
All Z data blocks of data D1 are received, then perform step 409, otherwise perform step 405；
Step 409：Terminate.
The above process can quickly upload the data to server so as to quick obtaining data.
In the method for the invention, in data D2 by data ID DID2 unique marks, the length of data D2, which is less than, to be made a reservation for
Value, for example, 1GB, mobile node M1 interface can be communicated by X channel under conditions of, mobile node M1 produces data D2
Afterwards, an idle channel is randomly choosed, the channel id of the channel is c2, and then mobile node M1 checks address table, selection letter
Road ID thresholdings are equal to all address list items of c2, mobile if all address list items sum of the channel id thresholding equal to c2 is Z2
Data D2 is averagely divided into Z2 data block C by node M 1x1, x1=1 ... Z2, data block Cx1Uniquely marked by data block ID x1
Know；Mobile node M1 creates an address list item set, which is made of Z2 address list item of the channel id thresholding equal to c2,
Then mobile node M1 is uploaded onto the server data D2 S1 by following processes：
Step 501：Start；
Step 502：The initial value of mobile node M1 arrange parameter k2, parameter k2 are 1；
Step 503：Mobile node M1 randomly selects an address list item from address list item set, and performs following behaviour
Make：Build a data-message, the source address of the data-message is the mobile node address thresholding of the address list item, destination address
For the access node address thresholding of the address list item, load as data ID DID2, data block ID k2, data block ID k2 marks
Data block Ck2And the address of server S 1, the channel identified from the channel id of the address list item send the data-message,
Parameter k2 is incremented by 1 at the same time, the address list item randomly selected is deleted from address list item set；
Step 504：If address list item collection is combined into sky, step 505 is performed, otherwise performs step 503；
Step 505：If mobile node receives the data-message, step 506 is performed, otherwise performs step 507；
Step 506：If receive the geographical coordinate of the mobile node of data-message in the destination address of the data-message
One jump in the range of, then the data-message is directly transmitted to the purpose access node that destination address identified, otherwise counts this
The neighboring mobile node nearest apart from the geographical coordinate of destination address is transmitted to according to message；Perform step 505；
Step 507：Purpose access node is after downstream wireline interface receives data-message, by the purpose of the data-message
Address is updated to the address of server S 1 in data-message load and the address of server S 1 is deleted from Message Payload, then
Data-message is transmitted to by upstream wireline interface by connected couple in router, couple in router is received from downstream wireline interface
To after data-message, which is forwarded by upstream wireline interface, which passes through internet backbone most Zhongdao
Up to server S 1；
Step 508：After server S 1 receives data-message, the data block in data-message is preserved, if server S 1
All Z2 data blocks of data D2 are received, then perform step 509, otherwise perform step 505；
Step 509：Terminate.
The above process can quickly upload the data to server so as to quick obtaining data.
In the method for the invention, in data D1 by data ID DID1 unique marks, the length of data D1, which is more than, to be made a reservation for
Value, for example, 1GB, mobile node M2 interface can be communicated by X channel under conditions of, mobile node M2 need obtain number
According to D1, the address list item sum in the address table of mobile node M2 is Z3, and mobile node M2 creates an address list item set, should
Address list item set is made of all address list items in address table, and mobile node M2 is obtained by following processes from server S 1
Data D1：
Step 601：Start；
Step 602：The initial value of mobile node M2 arrange parameter k3, parameter k3 are 1；
Step 603：Mobile node M2 randomly selects an address list item from address list item set, and performs following behaviour
Make：Build a request message, the source address of the request message is the mobile node address thresholding of the address list item, destination address
For the access node address thresholding of the address list item, load as data ID DID1, address list item sum is Z3, parameter k3 and
The address of server S 1, the channel identified from the channel id of the address list item sends the request message, while parameter k3 is passed
Increase 1, the address list item randomly selected is deleted from address list item set；
Step 604：If address list item collection is combined into sky, step 605 is performed, otherwise performs step 603；
Step 605：If mobile node receives the request message, step 606 is performed, otherwise performs step 607；
Step 606：If receive the geographical coordinate of the mobile node of request message in the destination address of the request message
One jump in the range of, then the request message is directly transmitted to the purpose access node that destination address identified, otherwise please by this
Message is asked to be transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step 605；
Step 607：Purpose access node is after downstream wireline interface receives request message, by the purpose of the request message
Address is updated to the address of server S 1 in request message load and the address of server S 1 is deleted from Message Payload, then
Request message is transmitted to by upstream wireline interface by connected couple in router, couple in router is received from downstream wireline interface
To after request message, which is forwarded by upstream wireline interface, which passes through internet backbone most Zhongdao
Up to server S 1；
Step 608：After server S 1 receives request message, the data ID DID1 in request message load, parameter are preserved
Data D1 is averagely divided into Z3 data block C by Z3 and k3, server S 1x2, x2=1 ... Z3, data block Cx2By data block ID
X2 unique marks, then choose the data block C that data block ID is equal to k3k3, and send a response message, the source of the response message
Address is the destination address of the request message received, and destination address is the source address of the request message received, is loaded as number
According to block ID k3 and data block Ck3；The response message eventually arrives at purpose couple in router by internet backbone, and purpose connects
The network prefix for entering the network prefix of router and the destination address of response message is identical；Purpose couple in router passes through the response
The downstream wireline interface that the access node ID of message destination address is identified forwards the response message；
Step 609：Access node performs step 610, otherwise performs step after upstream wireline interface receives response message
Rapid 611；
Step 610：If access node is led in the range of a jump of the geographical coordinate of the destination address of the response message
Cross downstream wireline interface and the response message is transmitted to the mobile node M2 that destination address identified, otherwise connect by the way that downstream is wired
The response message is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address by mouth；Perform step 609；
Step 611：If mobile node M2 receives response message, step 613 is performed, otherwise performs step 612；
Step 612：If receive the geographical coordinate of the mobile node of response message in the destination address of the response message
One jump in the range of, then the response message is transmitted to the mobile node M2 that destination address identified, otherwise by the response message
The neighboring mobile node nearest apart from the geographical coordinate of destination address is transmitted to, performs step 609；
Step 613：After mobile node M2 receives response message, the data block in response message load is preserved, if moved
Dynamic node M 2 receives all Z3 data blocks of data D1, then performs step 614, otherwise performs step 608；
Step 614：Terminate.
Mobile node can be with quick obtaining data by the above process.
In the method for the invention, in data D2 by data ID DID2 unique marks, the length of data D2, which is less than, to be made a reservation for
Value, for example, 1GB, mobile node M2 interface can be communicated by X channel under conditions of, mobile node M2 need obtain number
According to D2, then mobile node M2 randomly chooses an idle channel, and the channel id of the channel is c4, and then mobile node M2 is checked
Address table, all address list items for selecting channel id thresholding to be equal to c4, if channel id thresholding is equal to all address list items of c4
Sum is Z4, and mobile node M2 creates an address list item set, which is equal to the Z4 of c4 by channel id thresholding
A address list item is formed；Mobile node M2 obtains data D2 by following processes from server S 1：
Step 701：Start；
Step 702：The initial value of mobile node M2 arrange parameter k4, parameter k4 are 1；
Step 703：Mobile node M2 randomly selects an address list item from address list item set, and performs following behaviour
Make：Build a request message, the source address of the request message is the mobile node address thresholding of the address list item, destination address
For the access node address thresholding of the address list item, load as data ID DID2, address list item sum is Z4, parameter k4 and
The address of server S 1, the channel identified from the channel id of the address list item sends the request message, while parameter k4 is passed
Increase 1, the address list item randomly selected is deleted from address list item set；
Step 704：If address list item collection is combined into sky, step 705 is performed, otherwise performs step 703；
Step 705：If mobile node receives the request message, step 706 is performed, otherwise performs step 707；
Step 706：If receive the geographical coordinate of the mobile node of request message in the destination address of the request message
One jump in the range of, then the request message is directly transmitted to the purpose access node that destination address identified, otherwise please by this
Message is asked to be transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step 705；
Step 707：Purpose access node is after downstream wireline interface receives request message, by the purpose of the request message
Address is updated to the address of server S 1 in request message load and the address of server S 1 is deleted from Message Payload, then
Request message is transmitted to by upstream wireline interface by connected couple in router, couple in router is received from downstream wireline interface
To after request message, which is forwarded by upstream wireline interface, which passes through internet backbone most Zhongdao
Up to server S 1；
Step 708：After server S 1 receives request message, the data ID DID2 in request message load, parameter are preserved
Data D2 is averagely divided into Z4 data block C by Z4 and k4, server S 1x3, x3=1 ... Z4 data blocks Cx3By data block ID x3
Unique mark, then chooses the data block C that data block ID is equal to k4k4, and a response message is sent, the source of the response message
Location is the destination address of the request message received, and destination address is the source address of the request message received, is loaded as data
Block ID k4 and data block Ck4；The response message eventually arrives at purpose couple in router, purpose access by internet backbone
The network prefix of router is identical with the network prefix of the destination address of response message；Purpose couple in router is disappeared by the response
The downstream wireline interface that the access node ID of breath destination address is identified forwards the response message；
Step 709：Access node is judged whether after upstream wireline interface receives response message, performs step 710, it is no
Then perform step 711；
Step 710：If access node is led in the range of a jump of the geographical coordinate of the destination address of the response message
Cross downstream wireline interface and the response message is transmitted to the mobile node M2 that destination address identified, otherwise connect by the way that downstream is wired
The response message is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address by mouth；Perform step 709；
Step 711：If mobile node M2 receives response message, step 713 is performed, otherwise performs step 712；
Step 712：If receive the geographical coordinate of the mobile node of response message in the destination address of the response message
One jump in the range of, then the response message is transmitted to the mobile node M2 that destination address identified, otherwise by the response message
It is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step 709；
Step 713：After mobile node M2 receives response message, the data block in response message load is preserved, if moved
Dynamic node M 2 receives all Z4 data blocks of data D2, then performs step 714, otherwise performs step 708；
Step 714：Terminate.
Mobile node can be with quick obtaining data by the above process.
Beneficial effect：The present invention provides a kind of Internet of Things implementation method of low latency, mobile equipment is carried by the present invention
The method of confession can quick obtaining data, so as to reduce data communication delays and cost, improve service quality.The present invention can apply
In numerous areas such as agricultural engineerization, intelligent medicals, it is with a wide range of applications.
Brief description of the drawings
The present invention is done with reference to the accompanying drawings and detailed description and is further illustrated, of the invention is above-mentioned
And/or otherwise advantage will become apparent.
Fig. 1 is establishment channel table flow diagram of the present invention.
Fig. 2 is configuration address flow diagram of the present invention.
Fig. 3 is recycling address flow diagram of the present invention.
Fig. 4 is upload data flow diagram of the present invention.
Fig. 5 obtains data flow diagram for server of the present invention.
Fig. 6 is acquisition data block flow diagram of the present invention.
Fig. 7 is acquisition data flow diagram of the present invention.
Embodiment：
The present invention provides a kind of Internet of Things implementation method of low latency, mobile equipment passes through method energy provided by the invention
Enough quick obtaining data, so as to reduce data communication delays and cost, improve service quality.Present invention can apply to agriculture project
The numerous areas such as change, intelligent medical, are with a wide range of applications.
Fig. 1 is establishment channel table flow diagram of the present invention.The Internet of Things includes couple in router, access section
Point and mobile node；Each mobile node configures a wave point, which can be communicated using X channel, often
The X channel of a mobile node is all identical, and each channel is just whole more than 1 by channel id c unique marks, c values 1~X, X
Number；Couple in router configures a upstream wireline interface and Y downstream wireline interface, and Y >=2X, each downstream wireline interface is by connecing
Mouth ID t unique marks, t=1 ... Y；Access node configures a upstream wireline interface and a downstream wireless interface, accesses road
It is connected by the upstream wireline interface of device with internet backbone, a downstream wireline interface of couple in router and an access save
The upstream wireline interface of point is connected；The downstream wireless interface of access node is communicated using a kind of channel, the channel of the channel
ID is h, X >=h >=1；Y downstream wireline interface of one couple in router connects Y access node, and the access node is led to
The channel id collection of letter channel is combined into
Couple in router, access node and mobile node realize data communication by address, and the length of an address is
128 bits, are made of network prefix, geographical coordinate, access node ID and device id；
The upstream wireline interface of couple in router is identical with the network prefix of the address of downstream wireline interface and sets in advance
Put；, it is upstream wireline interface and downstream wireline interface configuration address after couple in router starts, wherein, upstream wireline interface
The network prefix of address is pre-set network prefix, and geographical coordinate 0, access node ID is 0, device id Y+1；Each
The network prefix of the address of downstream wireline interface is pre-set network prefix, and geographical coordinate 0, access node ID is 0, if
Standby ID is the interface ID of the downstream wireline interface；Couple in router be each downstream wireline interface configuration address after, from the downstream
Wireline interface sends a beacon message, and the source address of the beacon message is the address of the downstream wireline interface；
An address is respectively configured in the upstream wireline interface and downstream wireline interface of one access node；Access node is from upper
It is respectively that upstream wireline interface and downstream wireline interface configure an address, upper after trip wireline interface receives beacon message
In the address for swimming wireline interface, network prefix is equal to the network prefix of the source address of beacon message received, geographical coordinate and
Device id is 0, and access node ID is the device id of the source address of the beacon message received；The address of wireline interface in downstream
In, network prefix is equal to the network prefix of the source address of the beacon message received, and geographical coordinate is the current ground of access node
Coordinate is managed, device id 0, access node ID is the device id of the source address of the beacon message received；Access node is upstream
After wireline interface and downstream node configuration address, beacon message is periodically sent using the working channel of downstream wireline interface；At this
In beacon message, source address be downstream wireline interface address, load for broadcasting area parameter Hop, the initial value of parameter Hop it is pre-
First set；After mobile node receives a beacon message, the broadcasting area parameter Hop in the beacon message is successively decreased 1；If
Parameter Hop is equal to 0, which then stops forwarding the beacon message, otherwise forwards the beacon message；
Mobile node safeguards that a channel table and address table, a channel list item include Channel ID field and channel domain；One
Address list item includes Channel ID field, access node address field, mobile node address field and life cycle domain；Couple in router is safeguarded
One device id set preserves the allocated device id；
After mobile node starts, the X channel that oneself interface is supported is built into a channel set, i.e., the channel set by
X channel is formed, and is then performed following processes and is created channel table：
Step 101：Start；
Step 102：Mobile node sets a variable h, and the initial value of the variable is 1；
Step 103：Mobile node randomly selects a channel from channel set, and creates a channel list item, the letter
The channel id of road list item is h, and channel value is the channel chosen；Mobile node deletes the channel of selection from channel set, and will
Variable h values are incremented by 1；
Step 104：Mobile node judges whether channel set is empty, if so, performing step 105, otherwise performs step
103；
Step 105：Terminate；
After mobile node starts, periodic scanning X channel is each one temporary address of channel configuration, the net of temporary address
Network prefix and access node ID are 0, and geographical coordinate is the coordinate of mobile node current geographic position, device id be more than 0 with
Machine number, then mobile node send a beacon message from the channel, the source address of the beacon message for the channel provisionally
Location, loads as sky.
Fig. 2 is configuration address flow diagram of the present invention.If mobile node M1 is connect by the channel that channel id is c
Receive a beacon message b1 from access node AP1, upstream wireline interface and the couple in router AR1 of access node AP1
Downstream wireline interface be connected, then access node pass through following processes obtain address；
Step 201：Start；
Step 202：Mobile node M1 checks address table, if there is an address list item, the channel id of the address list item
For c, access node address thresholding is equal to the source address of beacon message b1, then performs step 203, otherwise performs step 204；
Step 203：Mobile node M1 selects channel id for the source of c and access node address thresholding equal to beacon message b1
The address list item of location, is arranged to maximum by the life cycle of the address list item, performs step 217；
Step 204：Mobile node M1 checks address table, if there is an address list item, the movable joint of the address list item
The network prefix of source address of the network prefix of dot address thresholding equal to beacon message b1, then perform step 205, otherwise perform step
Rapid 206；
Step 205：Source of the network prefix equal to beacon message b1 of mobile node M1 selection mobile nodes address thresholding
The address list item of the network prefix of location, then creates an address, the network prefix and access node ID of the address are equal to beacon
The network prefix and access node ID of the source address of message b1, geographical coordinate are the current geographical coordinates of mobile node M1, equipment
ID is the device id of the mobile node address thresholding of the address list item；Mobile node M1 creates an address list item, the address table
The channel id thresholding of item is c, and access node address thresholding is equal to the source address of beacon message b1, and mobile node address thresholding is equal to
The address of structure, performs step 217；
Step 206：Mobile node M1 creates an address, and the network prefix and access node ID of the address disappear equal to beacon
Cease the network prefix and access node ID of the source address of b1, geographical coordinate is the current geographical coordinates of mobile node M1, device id
For the random number more than 0；The channel that mobile node M1 is identified using channel id c sends a configuration message, the configuration message
Source address for structure address, destination address be beacon message b1 source address；
Step 207：If mobile node receives the configuration message, step 208 is performed, otherwise performs step 209；
Step 208：If receive configuration message mobile node the configuration message destination address geographical coordinate
One jump in the range of, then the configuration message is directly transmitted to the access node AP1 that destination address identified, otherwise configures this
Message is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step 207；
Step 209：After access node AP1 receives configuration message, which is forwarded by upstream wireline interface
The device id that couple in router AR1, couple in router AR1 check the source address of the configuration message is given whether in the device id of oneself
In set；If it is, performing step 210, step 211 is otherwise performed；
Step 210：Couple in router AR1 selects a not random number in the device id set of oneself, builds one
Configuration successful message, the source address of the configuration successful message are the destination address of the configuration message received, which disappears
The destination address of breath is the source address of the configuration message received, loads the random number for selection, then couple in router AR1 from
The downstream wireline interface that the access node ID of the destination address of the configuration message received is identified sends the configuration successful message,
And be added to the random number of selection in the device id set of oneself, perform step 212；
Step 211：Couple in router AR1 builds a configuration successful message, and the source address of the configuration successful message is to connect
The destination address of received configuration message, the destination address of the configuration successful message is the source address of the configuration message received,
Load as sky, the downstream wireline interface transmission then identified from the access node ID of the destination address of the configuration message received
The configuration successful message, and the device id of the source address of the configuration message received is added in the device id set of oneself；
Step 212：After access node AP1 receives configuration successful message, step 213 is performed, otherwise performs step 214；
Step 213：If access node AP1 is in a jump scope of the geographical coordinate of the destination address of the configuration successful message
It is interior, then the configuration successful message is transmitted to by the mobile node M1 that destination address identified by downstream wireline interface, otherwise led to
Cross downstream wireline interface and the configuration successful message is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；
Perform step 212；
Step 214：If mobile node M1 receives configuration successful message, step 216 is performed, otherwise performs step
215；
Step 215：If receive the destination address of the mobile node of configuration successful message in the configuration successful message
In the range of the one of geographical coordinate jumps, then the configuration successful message is directly transmitted to the mobile node M1 that destination address identified,
Otherwise the configuration successful message is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step
212；
Step 216：After mobile node M1 receives configuration successful message by the channel that channel id is c, if be configured to
Work(Message Payload is sky, then creates an address list item, the channel id of the address list item is c, and access node address thresholding is equal to
The source address of the configuration successful message, mobile node address thresholding are equal to the destination address of the configuration successful message；Otherwise, it is mobile
Node M 1 creates an address, and the network prefix and access node ID of the address are equal to the destination address of the configuration successful message
Network prefix and access node ID, geographical coordinate are geographical coordinate current mobile node M1, and device id disappears for the configuration successful
The random number in load is ceased, then mobile node M1 creates an address list item, and the channel id of the address list item is c, access section
Dot address thresholding is equal to the source address of the configuration successful message, and mobile node address thresholding is equal to the address created；
Step 217：Terminate.
Fig. 3 is recycling address flow diagram of the present invention.If mobile node M1 detects the life of address list item E1
It is 0 to order periodic attenuation, then performs operations described below reclaimer ID；
Step 301：Start；
Step 302：Mobile node M1 checks address table, if there is another address table in addition to address list item E1
The network prefix of mobile node address thresholding of the network prefix of the mobile node address thresholding of item equal to address list item E, then hold
Row step 307, otherwise performs step 303；
Step 303：The channel that mobile node M1 is identified by the channel id of address list item E1 sends a deletion message,
The source address of the deletion message is the mobile node address thresholding of address list item E1, and destination address is the access section of address list item E1
Dot address thresholding, loads as sky；Mobile node M1 deletes address list item E1 from address table；
Step 304：If mobile node receives the deletion message, step 305 is performed, otherwise performs step 306；
Step 305：If receive delete message mobile node the deletion message destination address geographical coordinate
One jump in the range of, then the deletion message is directly transmitted to the purpose access node that destination address identified, performs step
306, otherwise which is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address, perform step
304；
Step 306：After purpose access node receives deletion message, which is forwarded by upstream wireline interface
To the couple in router of connection, after couple in router receives deletion message, the deletion is deleted from the device id set of oneself
The device id of the source address of message；
Step 307：Terminate.
Fig. 4 is upload data flow diagram of the present invention.In a type of data by data ID unique marks, one
The data of type can be broken down into more than one data block, and each data block is identified by data block ID, and data D1 is by counting
According to ID DID1 unique marks, the length of data D1 is more than predetermined value, and the interface of mobile node M1 can be led to by X channel
Under conditions of letter, after mobile node M1 produces data D1, address table is checked, if the address list item sum in address table is Z, move
Data D1 is averagely divided into Z data block C by dynamic node M 1k, k 1~Z of value, data block CkBy data block ID k unique marks；
Then mobile node M1 is uploaded onto the server data D1 S1 by following processes：
Step 401：Start；
Step 402：The initial value of mobile node M1 arrange parameters c1 and parameter k1, parameter c1 and parameter k1 are 1；
Step 403：Mobile node M1 selection channel id thresholdings are equal to all address list items of c1, for the ground of each selection
Location list item, mobile node M1 perform operations described below：A data-message is built, the source address of the data-message is the address list item
Mobile node address thresholding, destination address be the address list item access node address thresholding, load for data ID DID1,
The data block C of data block ID k1, data block ID k1 markk1And the address of server S 1, from the channel id of the address list item
The channel identified sends the data-message, while parameter k1 is incremented by 1；
Step 404：Parameter c1 is incremented by 1 by mobile node M1, if parameter c1 is more than X, is performed step 405, is otherwise held
Row step 403；
Step 405：If mobile node receives the data-message, step 406 is performed, otherwise performs step 407；
Step 406：If receive the geographical coordinate of the mobile node of data-message in the destination address of the data-message
One jump in the range of, then the data-message is directly transmitted to the purpose access node that destination address identified, otherwise counts this
The neighboring mobile node nearest apart from the geographical coordinate of destination address is transmitted to according to message；Perform step 405；
Step 407：After purpose access node receives data-message, the destination address of the data-message is updated to the number
According to server S in Message Payload 1 address and from Message Payload delete server S 1 address, then connect by the way that upstream is wired
Mouthful data-message is transmitted to connected couple in router, couple in router after downstream wireline interface receives data-message,
The data-message is forwarded by upstream wireline interface, which eventually arrives at server S 1 by internet backbone；
Step 408：After server S 1 receives data-message, the data block in data-message is preserved, if server S 1
All Z data blocks of data D1 are received, then perform step 409, otherwise perform step 405；
Step 409：Terminate.
Fig. 5 obtains data flow diagram for server of the present invention.Uniquely marked by data ID DID2 in data D2
Know, the length of data D2 is less than predetermined value, under conditions of the interface of mobile node M1 can be communicated by X channel, moves
After node M 1 produces data D2, an idle channel is randomly choosed, the channel id of the channel is c2, and then mobile node M1 is looked into
See address table, all address list items for selecting channel id thresholding to be equal to c2, if channel id thresholding is equal to all address tables of c2
Item sum is Z2, and data D2 is averagely divided into Z2 data block C by mobile node M1x1, x1=1 ... Z2, data block Cx1By data
Block ID x1 unique marks；Mobile node M1 creates an address list item set, and the set is by Z2 of channel id thresholding equal to c2
Address list item is formed, and then mobile node M1 is uploaded onto the server data D2 S1 by following processes：
Step 501：Start；
Step 502：The initial value of mobile node M1 arrange parameter k2, parameter k2 are 1；
Step 503：Mobile node M1 randomly selects an address list item from address list item set, and performs following behaviour
Make：Build a data-message, the source address of the data-message is the mobile node address thresholding of the address list item, destination address
For the access node address thresholding of the address list item, load as data ID DID2, data block ID k2, data block ID k2 marks
Data block Ck2And the address of server S 1, the channel identified from the channel id of the address list item send the data-message,
Parameter k2 is incremented by 1 at the same time, the address list item randomly selected is deleted from address list item set；
Step 504：If address list item collection is combined into sky, step 505 is performed, otherwise performs step 503；
Step 505：If mobile node receives the data-message, step 506 is performed, otherwise performs step 507；
Step 506：If receive the geographical coordinate of the mobile node of data-message in the destination address of the data-message
One jump in the range of, then the data-message is directly transmitted to the purpose access node that destination address identified, otherwise counts this
The neighboring mobile node nearest apart from the geographical coordinate of destination address is transmitted to according to message；Perform step 505；
Step 507：Purpose access node is after downstream wireline interface receives data-message, by the purpose of the data-message
Address is updated to the address of server S 1 in data-message load and the address of server S 1 is deleted from Message Payload, then
Data-message is transmitted to by upstream wireline interface by connected couple in router, couple in router is received from downstream wireline interface
To after data-message, which is forwarded by upstream wireline interface, which passes through internet backbone most Zhongdao
Up to server S 1；
Step 508：After server S 1 receives data-message, the data block in data-message is preserved, if server S 1
All Z2 data blocks of data D2 are received, then perform step 509, otherwise perform step 505；
Step 509：Terminate.
Fig. 6 is acquisition data block flow diagram of the present invention.In data D1 by data ID DID1 unique marks, number
It is more than predetermined value according to the length of D1, under conditions of the interface of mobile node M2 can be communicated by X channel, mobile node M2
Need to obtain data D1, the address list item sum in the address table of mobile node M2 is Z3, one address of mobile node M2 establishments
List item set, the address list item set are made of all address list items in address table, mobile node M2 by following processes from
Server S 1 obtains data D1：
Step 601：Start；
Step 602：The initial value of mobile node M2 arrange parameter k3, parameter k3 are 1；
Step 603：Mobile node M2 randomly selects an address list item from address list item set, and performs following behaviour
Make：Build a request message, the source address of the request message is the mobile node address thresholding of the address list item, destination address
For the access node address thresholding of the address list item, load as data ID DID1, address list item sum is Z3, parameter k3 and
The address of server S 1, the channel identified from the channel id of the address list item sends the request message, while parameter k3 is passed
Increase 1, the address list item randomly selected is deleted from address list item set；
Step 604：If address list item collection is combined into sky, step 605 is performed, otherwise performs step 603；
Step 605：If mobile node receives the request message, step 606 is performed, otherwise performs step 607；
Step 606：If receive the geographical coordinate of the mobile node of request message in the destination address of the request message
One jump in the range of, then the request message is directly transmitted to the purpose access node that destination address identified, otherwise please by this
Message is asked to be transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step 605；
Step 607：Purpose access node is after downstream wireline interface receives request message, by the purpose of the request message
Address is updated to the address of server S 1 in request message load and the address of server S 1 is deleted from Message Payload, then
Request message is transmitted to by upstream wireline interface by connected couple in router, couple in router is received from downstream wireline interface
To after request message, which is forwarded by upstream wireline interface, which passes through internet backbone most Zhongdao
Up to server S 1；
Step 608：After server S 1 receives request message, the data ID DID1 in request message load, parameter are preserved
Data D1 is averagely divided into Z3 data block C by Z3 and k3, server S 1x2, x2=1 ... Z3, data block Cx2By data block ID
X2 unique marks, then choose the data block C that data block ID is equal to k3k3, and send a response message, the source of the response message
Address is the destination address of the request message received, and destination address is the source address of the request message received, is loaded as number
According to block ID k3 and data block Ck3；The response message eventually arrives at purpose couple in router by internet backbone, and purpose connects
The network prefix for entering the network prefix of router and the destination address of response message is identical；Purpose couple in router passes through the response
The downstream wireline interface that the access node ID of message destination address is identified forwards the response message；
Step 609：Access node performs step 610, otherwise performs step after upstream wireline interface receives response message
Rapid 611；
Step 610：If access node is led in the range of a jump of the geographical coordinate of the destination address of the response message
Cross downstream wireline interface and the response message is transmitted to the mobile node M2 that destination address identified, otherwise connect by the way that downstream is wired
The response message is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address by mouth；Perform step 609；
Step 611：If mobile node M2 receives response message, step 613 is performed, otherwise performs step 612；
Step 612：If receive the geographical coordinate of the mobile node of response message in the destination address of the response message
One jump in the range of, then the response message is transmitted to the mobile node M2 that destination address identified, otherwise by the response message
The neighboring mobile node nearest apart from the geographical coordinate of destination address is transmitted to, performs step 609；
Step 613：After mobile node M2 receives response message, the data block in response message load is preserved, if moved
Dynamic node M 2 receives all Z3 data blocks of data D1, then performs step 614, otherwise performs step 608；
Step 614：Terminate.
Fig. 7 is acquisition data flow diagram of the present invention.In data D2 by data ID DID2 unique marks, data
The length of D2 is less than predetermined value, and under conditions of the interface of mobile node M2 can be communicated by X channel, mobile node M2 is needed
Data D2 is obtained, then mobile node M2 randomly chooses an idle channel, and the channel id of the channel is c4, then movable joint
Point M2 checks address table, all address list items for selecting channel id thresholding to be equal to c4, if channel id thresholding is all equal to c4
Address list item sum is Z4, and mobile node M2 creates an address list item set, and the address list item set is by channel id thresholding etc.
Formed in the Z4 address list item of c4；Mobile node M2 obtains data D2 by following processes from server S 1：
Step 701：Start；
Step 702：The initial value of mobile node M2 arrange parameter k4, parameter k4 are 1；
Step 703：Mobile node M2 randomly selects an address list item from address list item set, and performs following behaviour
Make：Build a request message, the source address of the request message is the mobile node address thresholding of the address list item, destination address
For the access node address thresholding of the address list item, load as data ID DID2, address list item sum is Z4, parameter k4 and
The address of server S 1, the channel identified from the channel id of the address list item sends the request message, while parameter k4 is passed
Increase 1, the address list item randomly selected is deleted from address list item set；
Step 704：If address list item collection is combined into sky, step 705 is performed, otherwise performs step 703；
Step 705：If mobile node receives the request message, step 706 is performed, otherwise performs step 707；
Step 706：If receive the geographical coordinate of the mobile node of request message in the destination address of the request message
One jump in the range of, then the request message is directly transmitted to the purpose access node that destination address identified, otherwise please by this
Message is asked to be transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step 705；
Step 707：Purpose access node is after downstream wireline interface receives request message, by the purpose of the request message
Address is updated to the address of server S 1 in request message load and the address of server S 1 is deleted from Message Payload, then
Request message is transmitted to by upstream wireline interface by connected couple in router, couple in router is received from downstream wireline interface
To after request message, which is forwarded by upstream wireline interface, which passes through internet backbone most Zhongdao
Up to server S 1；
Step 708：After server S 1 receives request message, the data ID DID2 in request message load, parameter are preserved
Data D2 is averagely divided into Z4 data block C by Z4 and k4, server S 1x3, x3=1 ... Z4 data blocks Cx3By data block ID x3
Unique mark, then chooses the data block C that data block ID is equal to k4k4, and a response message is sent, the source of the response message
Location is the destination address of the request message received, and destination address is the source address of the request message received, is loaded as data
Block ID k4 and data block Ck4；The response message eventually arrives at purpose couple in router, purpose access by internet backbone
The network prefix of router is identical with the network prefix of the destination address of response message；Purpose couple in router is disappeared by the response
The downstream wireline interface that the access node ID of breath destination address is identified forwards the response message；
Step 709：Judge whether access node from upstream wireline interface receives response message, perform step 710, otherwise
Perform step 711；
Step 710：If access node is led in the range of a jump of the geographical coordinate of the destination address of the response message
Cross downstream wireline interface and the response message is transmitted to the mobile node M2 that destination address identified, otherwise connect by the way that downstream is wired
The response message is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address by mouth；Perform step 709；
Step 711：If mobile node M2 receives response message, step 713 is performed, otherwise performs step 712；
Step 712：If receive the geographical coordinate of the mobile node of response message in the destination address of the response message
One jump in the range of, then the response message is transmitted to the mobile node M2 that destination address identified, otherwise by the response message
It is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step 709；
Step 713：After mobile node M2 receives response message, the data block in response message load is preserved, if moved
Dynamic node M 2 receives all Z4 data blocks of data D2, then performs step 714, otherwise performs step 708；
Step 714：Terminate.
Embodiment 1
Based on the simulation parameter of table 1, the present embodiment simulates the low latency Internet of Things implementation method in the present invention, performance point
Analysis is as follows：During mobile node quantity increase, address configuration delay increases therewith, but data communication delays tend towards stability.Address
Configuration average retardation is 50ms, and it is 300ms to obtain data average retardation.
1 simulation parameter of table
The present invention provides a kind of thinking of the Internet of Things implementation method of low latency, the method for implementing the technical solution
Many with approach, the above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill of the art
For personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.The available prior art of each component part being not known in the present embodiment is realized.
Claims (7)
1. the Internet of Things implementation method of a kind of low latency, it is characterised in that the Internet of Things includes couple in router, access node
And mobile node；Each mobile node configures a wave point, which can be communicated using X channel, each
The X channel of mobile node is all identical, and for each channel by channel id c unique marks, c values 1~X, X are the positive integer more than 1；
Couple in router configures a upstream wireline interface and Y downstream wireline interface, and Y >=2X, each downstream wireline interface is by interface
ID t unique marks, t=1 ... Y；Access node configures a upstream wireline interface and a downstream wireless interface, access route
The upstream wireline interface of device is connected with internet backbone, the downstream wireline interface and an access node of couple in router
Upstream wireline interface be connected；The downstream wireless interface of access node is communicated using a kind of channel, the channel id of the channel
For h, X >=h >=1；Y downstream wireline interface of one couple in router connects Y access node, the communication of the access node
The channel id collection of channel is combined into
Couple in router, access node and mobile node realize data communication by address, and the length of an address compares for 128
Spy, is made of network prefix, geographical coordinate, access node ID and device id；
The upstream wireline interface of couple in router is identical with the network prefix of the address of downstream wireline interface and pre-sets；, connect
It is upstream wireline interface and downstream wireline interface configuration address after entering router startup, wherein, the address of upstream wireline interface
Network prefix is pre-set network prefix, and geographical coordinate 0, access node ID is 0, device id Y+1；Each downstream has
The network prefix of the address of line interface is pre-set network prefix, and geographical coordinate 0, access node ID is 0, and device id is
The interface ID of the downstream wireline interface；Couple in router be each downstream wireline interface configuration address after, connect from the downstream is wired
Mouth sends a beacon message, and the source address of the beacon message is the address of the downstream wireline interface；
An address is respectively configured in the upstream wireline interface and downstream wireline interface of one access node；Access node has from upstream
After line interface receives beacon message, it is respectively that upstream wireline interface and downstream wireline interface configure an address, has in upstream
In the address of line interface, network prefix is equal to the network prefix of the source address of the beacon message received, geographical coordinate and equipment
ID is 0, and access node ID is the device id of the source address of the beacon message received；In the address of downstream wireline interface,
Network prefix is equal to the network prefix of the source address of the beacon message received, and geographical coordinate is the current geographical seat of access node
Mark, device id 0, access node ID is the device id of the source address of the beacon message received；Access node is wired for upstream
After interface and downstream node configuration address, beacon message is periodically sent using the working channel of downstream wireline interface；In the beacon
In message, source address is the address of downstream wireline interface, loads and is set in advance for broadcasting area parameter Hop, the initial value of parameter Hop
Put；After mobile node receives a beacon message, the broadcasting area parameter Hop in the beacon message is successively decreased 1；If the ginseng
Number Hop is equal to 0, which then stops forwarding the beacon message, otherwise forwards the beacon message；
Mobile node safeguards that a channel table and address table, a channel list item include Channel ID field and channel domain；One address
List item includes Channel ID field, access node address field, mobile node address field and life cycle domain；Couple in router safeguards one
Device id set preserves the allocated device id；
After mobile node starts, the X channel that oneself interface is supported is built into a channel set, i.e. the channel set is believed by X
Road is formed, and is then performed following processes and is created channel table：
Step 101：Start；
Step 102：Mobile node sets a variable h, and the initial value of the variable is 1；
Step 103：Mobile node randomly selects a channel from channel set, and creates a channel list item, the channel table
The channel id of item is h, and channel value is the channel chosen；Mobile node deletes the channel of selection from channel set, and by variable h
Value is incremented by 1；
Step 104：Mobile node judges whether channel set is empty, if so, performing step 105, otherwise performs step 103；
Step 105：Terminate；
After mobile node starts, periodic scanning X channel is each one temporary address of channel configuration, before the network of temporary address
It is 0 to sew with access node ID, and geographical coordinate is the coordinate of mobile node current geographic position, and device id is the random number more than 0,
Then mobile node sends a beacon message from the channel, and the source address of the beacon message is the temporary address of the channel, is born
Carry as sky.
2. the Internet of Things implementation method of a kind of low latency according to claim 1, it is characterised in that if mobile node M1
One beacon message b1 from access node AP1 is received by the channel that channel id is c, the upstream of access node AP1 has
Line interface is connected with the downstream wireline interface of couple in router AR1, then access node obtains address by following processes；
Step 201：Start；
Step 202：Mobile node M1 checks address table, and if there is an address list item, the channel id of the address list item is c,
Access node address thresholding is equal to the source address of beacon message b1, then performs step 203, otherwise performs step 204；
Step 203：Mobile node M1 selects channel id as the source address of c and access node address thresholding equal to beacon message b1
Address list item, is arranged to maximum by the life cycle of the address list item, performs step 217；
Step 204：Mobile node M1 checks address table, if there is an address list item, the mobile node of the address list item
The network prefix of source address of the network prefix of location thresholding equal to beacon message b1, then perform step 205, otherwise perform step
206；
Step 205：Source address of the network prefix equal to beacon message b1 of mobile node M1 selection mobile nodes address thresholding
The address list item of network prefix, then creates an address, the network prefix and access node ID of the address are equal to beacon message
The network prefix and access node ID of the source address of b1, geographical coordinate are geographical coordinate current mobile node M1, and device id is
The device id of the mobile node address thresholding of the address list item；Mobile node M1 creates an address list item, the address list item
Channel id thresholding is c, and access node address thresholding is equal to the source address of beacon message b1, and mobile node address thresholding is equal to structure
Address, perform step 217；
Step 206：Mobile node M1 creates an address, and the network prefix and access node ID of the address are equal to beacon message b1
Source address network prefix and access node ID, geographical coordinate is the current geographical coordinates of mobile node M1, and device id is big
In 0 random number；The channel that mobile node M1 is identified using channel id c sends a configuration message, the source of the configuration message
Address is the address of structure, and destination address is the source address of beacon message b1；
Step 207：If mobile node receives the configuration message, step 208 is performed, otherwise performs step 209；
Step 208：If receive configuration message mobile node the configuration message destination address geographical coordinate one
In the range of jump, then the configuration message is directly transmitted to the access node AP1 that destination address identified, otherwise by the configuration message
It is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step 207；
Step 209：After access node AP1 receives configuration message, which is transmitted to by upstream wireline interface and is connect
Enter router AR1, couple in router AR1 checks the device id of the source address of the configuration message whether in the device id set of oneself
In；If it is, performing step 210, step 211 is otherwise performed；
Step 210：Couple in router AR1 selects a not random number in the device id set of oneself, builds a configuration
Success message, the source address of the configuration successful message are the destination address of the configuration message received, the configuration successful message
Destination address is the source address of the configuration message received, loads the random number for selection, and then couple in router AR1 is from reception
To the downstream wireline interfaces that are identified of access node ID of destination address of configuration message send the configuration successful message, and will
The random number of selection is added in the device id set of oneself, performs step 212；
Step 211：Couple in router AR1 builds a configuration successful message, and the source address of the configuration successful message is to receive
Configuration message destination address, the destination address of the configuration successful message is the source address of the configuration message received, load
For sky, then this is sent from the access node ID of the destination address of the configuration message received the downstream wireline interfaces identified and matched somebody with somebody
Success message is put, and the device id of the source address of the configuration message received is added in the device id set of oneself；
Step 212：After access node AP1 receives configuration successful message, step 213 is performed, otherwise performs step 214；
Step 213：If access node AP1 the destination address of the configuration successful message geographical coordinate one jump in the range of,
The configuration successful message is then transmitted to by the mobile node M1 that destination address identified by downstream wireline interface, otherwise under
The configuration successful message is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address by trip wireline interface；Perform
Step 212；
Step 214：If mobile node M1 receives configuration successful message, step 216 is performed, otherwise performs step 215；
Step 215：If receive the geography of the mobile node of configuration successful message in the destination address of the configuration successful message
In the range of the one of coordinate jumps, then the configuration successful message is directly transmitted to the mobile node M1 that destination address identified, otherwise
The configuration successful message is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step 212；
Step 216：After mobile node M1 receives configuration successful message by the channel that channel id is c, if configuration successful disappears
Breath load is sky, then creates an address list item, the channel id of the address list item is c, and access node address thresholding is matched somebody with somebody equal to this
The source address of success message is put, mobile node address thresholding is equal to the destination address of the configuration successful message；Otherwise, mobile node
M1 creates an address, and the network prefix and access node ID of the address are equal to the network of the destination address of the configuration successful message
Prefix and access node ID, geographical coordinate are geographical coordinate current mobile node M1, and device id is born for the configuration successful message
Random number in load, then mobile node M1 create an address list item, the channel id of the address list item is c, access node
Location thresholding is equal to the source address of the configuration successful message, and mobile node address thresholding is equal to the address created；
Step 217：Terminate.
3. the Internet of Things implementation method of a kind of low latency according to claim 1, it is characterised in that if mobile node M1
Detect that the life cycle of address list item E1 decays to 0, then perform operations described below reclaimer ID；
Step 301：Start；
Step 302：Mobile node M1 checks address table, if there is another address list item in addition to address list item E1
The network prefix of mobile node address thresholding of the network prefix of mobile node address thresholding equal to address list item E, then perform step
Rapid 307, otherwise perform step 303；
Step 303：The channel that mobile node M1 is identified by the channel id of address list item E1 sends a deletion message, this is deleted
Except the mobile node address thresholding that the source address of message is address list item E1, destination address is the access node of address list item E1
Location thresholding, loads as sky；Mobile node M1 deletes address list item E1 from address table；
Step 304：If mobile node receives the deletion message, step 305 is performed, otherwise performs step 306；
Step 305：If receive delete message mobile node the deletion message destination address geographical coordinate one
In the range of jump, then the deletion message is directly transmitted to the purpose access node that destination address identified, performs step 306, it is no
The deletion message is then transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address, performs step 304；
Step 306：After purpose access node receives deletion message, which is transmitted to company by upstream wireline interface
The couple in router connect, after couple in router receives deletion message, deletes the deletion message from the device id set of oneself
Source address device id；
Step 307：Terminate.
4. the Internet of Things implementation method of a kind of low latency according to claim 1, it is characterised in that in a type of number
According to by data ID unique marks, a type of data can be broken down into more than one data block, and each data block is by counting
Identified according to block ID, data D1 is more than predetermined value by data ID DID1 unique marks, the length of data D1, and mobile node M1's connects
Under conditions of mouth can be communicated by X channel, after mobile node M1 produces data D1, address table is checked, if address table
In address list item sum be Z, data D1 is averagely divided into Z data block C by mobile node M1k, k 1~Z of value, data block Ck
By data block ID k unique marks；Then mobile node M1 is uploaded onto the server data D1 S1 by following processes：
Step 401：Start；
Step 402：The initial value of mobile node M1 arrange parameters c1 and parameter k1, parameter c1 and parameter k1 are 1；
Step 403：Mobile node M1 selection channel id thresholdings are equal to all address list items of c1, for the address table of each selection
, mobile node M1 performs operations described below：A data-message is built, the source address of the data-message is the shifting of the address list item
Dynamic node address thresholding, destination address are the access node address thresholding of the address list item, are loaded as data ID DID1, data
The data block C of block ID k1, data block ID k1 markk1And the address of server S 1, marked from the channel id of the address list item
The channel of knowledge sends the data-message, while parameter k1 is incremented by 1；
Step 404：Parameter c1 is incremented by 1 by mobile node M1, if parameter c1 is more than X, is performed step 405, is otherwise performed step
Rapid 403；
Step 405：If mobile node receives the data-message, step 406 is performed, otherwise performs step 407；
Step 406：If receive the mobile node of data-message the destination address of the data-message geographical coordinate one
In the range of jump, then the data-message is directly transmitted to the purpose access node that destination address identified, otherwise the data disappear
Breath is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step 405；
Step 407：After purpose access node receives data-message, the destination address of the data-message is updated to the data and is disappeared
Cease the address of server S 1 in load and the address of server S 1 is deleted from Message Payload, then will by upstream wireline interface
Data-message is transmitted to connected couple in router, and couple in router passes through after downstream wireline interface receives data-message
Upstream wireline interface forwards the data-message, which eventually arrives at server S 1 by internet backbone；
Step 408：After server S 1 receives data-message, the data block in data-message is preserved, if server S 1 receives
To all Z data blocks of data D1, then step 409 is performed, otherwise perform step 405；
Step 409：Terminate.
5. the Internet of Things implementation method of a kind of low latency according to claim 1, it is characterised in that in data D2 by data
ID DID2 unique marks, the length of data D2 are less than predetermined value, and the interface of mobile node M1 can be communicated by X channel
Under conditions of, after mobile node M1 produces data D2, an idle channel is randomly choosed, the channel id of the channel is c2, so
Mobile node M1 checks address table afterwards, all address list items for selecting channel id thresholding to be equal to c2, if channel id thresholding is equal to
All address list items sum of c2 is Z2, and data D2 is averagely divided into Z2 data block C by mobile node M1x1, x1=1 ... Z2,
Data block Cx1By data block ID x1 unique marks；Mobile node M1 creates an address list item set, and the set is by Channel ID field
Z2 address list item composition of the value equal to c2, then mobile node M1 data D2 is uploaded onto the server S1 by following processes：
Step 501：Start；
Step 502：The initial value of mobile node M1 arrange parameter k2, parameter k2 are 1；
Step 503：Mobile node M1 randomly selects an address list item from address list item set, and performs operations described below：Structure
A data-message is built, the source address of the data-message is the mobile node address thresholding of the address list item, and destination address is should
The access node address thresholding of address list item, loads the number identified for data ID DID2, data block ID k2, data block ID k2
According to block Ck2And the address of server S 1, the channel identified from the channel id of the address list item send the data-message, at the same time
Parameter k2 is incremented by 1, the address list item randomly selected is deleted from address list item set；
Step 504：If address list item collection is combined into sky, step 505 is performed, otherwise performs step 503；
Step 505：If mobile node receives the data-message, step 506 is performed, otherwise performs step 507；
Step 506：If receive the mobile node of data-message the destination address of the data-message geographical coordinate one
In the range of jump, then the data-message is directly transmitted to the purpose access node that destination address identified, otherwise the data disappear
Breath is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step 505；
Step 507：Purpose access node is after downstream wireline interface receives data-message, by the destination address of the data-message
It is updated to the address of server S 1 in data-message load and the address of server S 1 is deleted from Message Payload, then passes through
Data-message is transmitted to connected couple in router by upstream wireline interface, and couple in router receives number from downstream wireline interface
After message, which is forwarded by upstream wireline interface, which eventually arrives at clothes by internet backbone
Be engaged in device S1；
Step 508：After server S 1 receives data-message, the data block in data-message is preserved, if server S 1 receives
To all Z2 data blocks of data D2, then step 509 is performed, otherwise perform step 505；
Step 509：Terminate.
6. the Internet of Things implementation method of a kind of low latency according to claim 1, it is characterised in that in data D1 by data
ID DID1 unique marks, the length of data D1 are more than predetermined value, and the interface of mobile node M2 can be communicated by X channel
Under conditions of, mobile node M2 needs to obtain data D1, and the address list item sum in the address table of mobile node M2 is Z3, moves
Node M 2 creates an address list item set, which is made of all address list items in address table, movable joint
Point M2 obtains data D1 by following processes from server S 1：
Step 601：Start；
Step 602：The initial value of mobile node M2 arrange parameter k3, parameter k3 are 1；
Step 603：Mobile node M2 randomly selects an address list item from address list item set, and performs operations described below：Structure
A request message is built, the source address of the request message is the mobile node address thresholding of the address list item, and destination address is should
The access node address thresholding of address list item, loads as data ID DID1, address list item sum is Z3, parameter k3 and service
The address of device S1, the channel identified from the channel id of the address list item sends the request message, while parameter k3 is incremented by 1,
The address list item randomly selected is deleted from address list item set；
Step 604：If address list item collection is combined into sky, step 605 is performed, otherwise performs step 603；
Step 605：If mobile node receives the request message, step 606 is performed, otherwise performs step 607；
Step 606：If receive the mobile node of request message the destination address of the request message geographical coordinate one
In the range of jump, then the request message is directly transmitted to the purpose access node that destination address identified, otherwise the request disappears
Breath is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step 605；
Step 607：Purpose access node is after downstream wireline interface receives request message, by the destination address of the request message
It is updated to the address of server S 1 in request message load and the address of server S 1 is deleted from Message Payload, then passes through
Request message is transmitted to connected couple in router by upstream wireline interface, and couple in router is received from downstream wireline interface please
After seeking message, which is forwarded by upstream wireline interface, which eventually arrives at clothes by internet backbone
Be engaged in device S1；
Step 608：After server S 1 receives request message, preserve request message load in data ID DID1, parameter Z3 and
Data D1 is averagely divided into Z3 data block C by k3, server S 1x2, x2=1 ... Z3, data block Cx2By data block ID x2 only
One mark, then chooses the data block C that data block ID is equal to k3k3, and send a response message, the source address of the response message
Destination address for the request message received, destination address are the source address of the request message received, are loaded as data block
ID k3 and data block Ck3；The response message eventually arrives at purpose couple in router, purpose access road by internet backbone
It is identical with the network prefix of the destination address of response message by the network prefix of device；Purpose couple in router passes through the response message
The downstream wireline interface that the access node ID of destination address is identified forwards the response message；
Step 609：Access node performs step 610, otherwise performs step after upstream wireline interface receives response message
611；
Step 610：If access node is in the range of a jump of the geographical coordinate of the destination address of the response message, under
The response message is transmitted to the mobile node M2 that destination address identified by trip wireline interface, and otherwise passing through downstream wireline interface will
The response message is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step 609；
Step 611：If mobile node M2 receives response message, step 613 is performed, otherwise performs step 612；
Step 612：If receive the mobile node of response message the destination address of the response message geographical coordinate one
In the range of jump, then the response message is transmitted to the mobile node M2 that destination address identified, otherwise forwards the response message
The neighboring mobile node nearest to the geographical coordinate apart from destination address, performs step 609；
Step 613：After mobile node M2 receives response message, the data block in response message load is preserved, if movable joint
Point M2 receives all Z3 data blocks of data D1, then performs step 614, otherwise performs step 608；
Step 614：Terminate.
7. the Internet of Things implementation method of a kind of low latency according to claim 1, it is characterised in that in data D2 by data
ID DID2 unique marks, the length of data D2 are less than predetermined value, and the interface of mobile node M2 can be communicated by X channel
Under conditions of, mobile node M2 needs to obtain data D2, then mobile node M2 randomly chooses an idle channel, the channel
Channel id is c4, and then mobile node M2 checks address table, all address list items for selecting channel id thresholding to be equal to c4, if letter
All address list items sum of the road ID thresholdings equal to c4 is Z4, and mobile node M2 creates an address list item set, the address table
Item set is made of Z4 address list item of the channel id thresholding equal to c4；Mobile node M2 is obtained by following processes from server S 1
Access is according to D2：
Step 701：Start；
Step 702：The initial value of mobile node M2 arrange parameter k4, parameter k4 are 1；
Step 703：Mobile node M2 randomly selects an address list item from address list item set, and performs operations described below：Structure
A request message is built, the source address of the request message is the mobile node address thresholding of the address list item, and destination address is should
The access node address thresholding of address list item, loads as data ID DID2, address list item sum is Z4, parameter k4 and service
The address of device S1, the channel identified from the channel id of the address list item sends the request message, while parameter k4 is incremented by 1,
The address list item randomly selected is deleted from address list item set；
Step 704：If address list item collection is combined into sky, step 705 is performed, otherwise performs step 703；
Step 705：If mobile node receives the request message, step 706 is performed, otherwise performs step 707；
Step 706：If receive the mobile node of request message the destination address of the request message geographical coordinate one
In the range of jump, then the request message is directly transmitted to the purpose access node that destination address identified, otherwise the request disappears
Breath is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step 705；
Step 707：Purpose access node is after downstream wireline interface receives request message, by the destination address of the request message
It is updated to the address of server S 1 in request message load and the address of server S 1 is deleted from Message Payload, then passes through
Request message is transmitted to connected couple in router by upstream wireline interface, and couple in router is received from downstream wireline interface please
After seeking message, which is forwarded by upstream wireline interface, which eventually arrives at clothes by internet backbone
Be engaged in device S1；
Step 708：After server S 1 receives request message, preserve request message load in data ID DID2, parameter Z4 and
Data D2 is averagely divided into Z4 data block C by k4, server S 1x3, x3=1 ... Z4 data blocks Cx3It is unique by data block ID x3
Mark, then chooses the data block C that data block ID is equal to k4k4, and a response message is sent, the source address of the response message is
The destination address of the request message received, destination address are the source address of the request message received, are loaded as data block ID
K4 and data block Ck4；The response message eventually arrives at purpose couple in router, purpose access route by internet backbone
The network prefix of device is identical with the network prefix of the destination address of response message；Purpose couple in router passes through the response message mesh
The downstream wireline interfaces that are identified of access node ID of address forward the response message；
Step 709：Access node is judged whether after upstream wireline interface receives response message, is performed step 710, is otherwise held
Row step 711；
Step 710：If access node is in the range of a jump of the geographical coordinate of the destination address of the response message, under
The response message is transmitted to the mobile node M2 that destination address identified by trip wireline interface, and otherwise passing through downstream wireline interface will
The response message is transmitted to the neighboring mobile node nearest apart from the geographical coordinate of destination address；Perform step 709；
Step 711：If mobile node M2 receives response message, step 713 is performed, otherwise performs step 712；
Step 712：If receive the mobile node of response message the destination address of the response message geographical coordinate one
In the range of jump, then the response message is transmitted to the mobile node M2 that destination address identified, otherwise forwards the response message
The neighboring mobile node nearest to the geographical coordinate apart from destination address；Perform step 709；
Step 713：After mobile node M2 receives response message, the data block in response message load is preserved, if movable joint
Point M2 receives all Z4 data blocks of data D2, then performs step 714, otherwise performs step 708；
Step 714：Terminate.
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