CN106793034A - Industry wireless network dispatching method and device based on loop power taking - Google Patents
Industry wireless network dispatching method and device based on loop power taking Download PDFInfo
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- CN106793034A CN106793034A CN201611162121.1A CN201611162121A CN106793034A CN 106793034 A CN106793034 A CN 106793034A CN 201611162121 A CN201611162121 A CN 201611162121A CN 106793034 A CN106793034 A CN 106793034A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
- H04W52/0232—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal according to average transmission signal activity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
This application discloses a kind of industry wireless network dispatching method based on loop power taking, including：Determine node current operating state, working condition includes transmission state and reception state；Whether energy requirements are met according to node current operating state decision node dump energy, if not, node continues to charge in the loop；If it is, waking up node, when node working condition is reception state, packet is received in the default time slot that receives；When node working condition is transmission state, packet is sent in default sending time slots.The embodiment of the present invention fundamentally solves the problems, such as node not enough power supply using the mode of loop power taking, extends long period industry wireless network life span, and loop power taking reliability is high, so as to improve the reliability of data transfer in wireless network.
Description
Technical field
The application is related to a kind of industry wireless network dispatching method and device based on loop power taking, belongs to industrial wireless network
Network dispatches field.
Background technology
Industry wireless network is the network controller by gateway, and a large amount of wireless sensor node compositions collection detection with
The wireless network architecture that control is integrated.Compared with traditional control system, industry wireless network reliability is high, deployment flexibly,
It is with low cost, therefore be used widely.
At present, in industry wireless network wireless sensor node is mainly powered with self-contained battery, in electricity
In the case of abundance, industrial network can realize real-time transmission higher.But due to sensor node small volume, what it was carried
Electricity is extremely limited, and as the number of nodes that electricity in network exhausts increases, or the electricity of certain key node exhausts, in network
The schedulability and acceptance rate of data flow can be gradually reduced, and even result in whole network paralysis.Therefore, how to keep sensor long
There is electricity phase, realizes that industry wireless network is highly reliable for a long time and is wirelessly transferred, as the technical problem that researcher is primarily upon.
In order to improve, industry wireless network is highly reliable for a long time to be wirelessly transferred in the prior art, mainly takes following three kinds
Method：
(1) by optimizing the ratio of node dormancy/wake-up, node working frequency is reduced；
(2) packet of same or like classification is screened and is merged, reduced the quantity of node for data forwarding bag；
(3) by improving the reliability of single transmission, the quantity for retransmitting is reduced, reduces node energy consumption expense.
But prior art is not suitable for without fundamentally solving the problems, such as that nodes carrying electricity is limited
Meters sensor node and the relatively low wireless network environment for but needing long-term monitoring of frequency.
The content of the invention
According to the one side of the application, there is provided a kind of industry wireless network dispatching method based on loop power taking, should
Method fundamentally solves the problems, such as node not enough power supply, extends long period industry wireless network life span, and return
Road power taking reliability is high, so as to improve the reliability of data transfer in wireless network.
A kind of industry wireless network dispatching method based on loop power taking, including：
Determine node current operating state, working condition includes transmission state and reception state；
Whether energy requirements are met according to node current operating state decision node dump energy, if not, node is being returned
Continue to charge in road；If it is, waking up node, when node working condition is reception state, number is received in the default time slot that receives
According to bag；When node working condition is transmission state, packet is sent in default sending time slots.
Wherein it is determined that node current operating state, specially：
When not existing data to be forwarded bag in node, determine that node current operating state is reception state；
If there is data to be forwarded bag in node, determine that node current operating state is transmission state.
Wherein, whether energy requirements are met according to node current operating state decision node dump energy, specially：
If energy consumption needed for the node of the state of transmission is ETx, ETx=Eelec×l+ε×l×dα, QTXTo send the node of state
Dump energy；
If energy consumption needed for the node of reception state is ERx, ERx=Eelec× l, QRXIt is the node dump energy of reception state；
Wherein, EelecThe electricity of consumption that to be modal processor need per bit, l is data packet length, ε be transmission amplify because
Number, α is path loss index, dαRepresent the α power of d；
Work as QTX>ETx, or QRX>ERx, confirm that node dump energy meets energy requirements.
Wherein, node continues to charge in the loop, specially：
Node improves partial pressure class, continues to charge in the loop.
Further, before default sending time slots send packet, also include：
When packet to be sent exceeds the off period, packet to be sent is abandoned, switch to charged state.
Further, also include：
When node is after default sending time slots send packet, the partial pressure class of loop power taking is reduced.
Wherein, the partial pressure class sets according to the off period of packet in node.
Further, it is determined that before node current operating state, also including：
According to the packet end-to-end off period, multipair connecing is set between identical destination node and sending node and is transmitted/received
Send time slot pair.
According to the another aspect of the application, there is provided a kind of industry wireless network dispatching device based on loop power taking,
Described device includes：
Determining module, for determining node current operating state, working condition includes transmission state and reception state；
Judge module, for whether meeting energy requirements according to node current operating state decision node dump energy, such as
It is really no, trigger charging module；If it is, triggering wake module；
Charging module, for continuing to charge in the loop to node；
Wake module, for waking up node；
Scheduler module, for when node working condition is reception state, packet being received in the default time slot that receives；Work as section
When point working condition is transmission state, packet is sent in default sending time slots.
Further, also include：
Module is reduced, after sending packet in the scheduler module, the partial pressure class of loop power taking is reduced.
The beneficial effect that the application can be produced includes：
1) the application determines current operating state according to whether there is packet to be forwarded, is then sentenced according to working condition
Whether disconnected node dump energy meets energy requirements, if being unsatisfactory for energy requirements, node continues to charge in the loop；If
Meet energy requirements, then wake up node, when node working condition is reception state, packet is received in the default time slot that receives；
When node working condition is transmission state, packet is sent in default sending time slots, the embodiment of the present invention utilizes loop power taking
Mode fundamentally solve the problems, such as node not enough power supply, extend long period industry wireless network life span, and
Loop power taking is not influenceed by natural environment and climate etc., only related to loop current, thus node power taking stabilised efficiency, with the sun
The wireless network of the energy acquisition such as energy, wind energy, heat energy node composition is compared, and reliability is higher, so as in improve wireless network
The reliability of data transfer, is particularly suited for some meters sensor nodes and frequency is relatively low but needs the wireless of long-term monitoring
Network environment；
2) further, when node dump energy is unsatisfactory for energy requirements, node improve partial pressure class, in the loop after
It is continuous to charge, to reach quick charge, meet energy requirements, timely transmission packet；
3) further, after node sends packet, the partial pressure class of loop power taking is reduced, it is ensured that loop will not be because big
Width partial pressure and reduce quality；
4) the partial pressure class of node further, according to the off period of packet in node, can also be set, when distance is saved
The off period of packet nearer time slot in point, the partial pressure class of node is higher, also just improves the charging rate of node, so that
Reduce due to the transmission delay that not enough power supply causes；
5) further, in order that packet is after reception/sending time slots are missed, after node electricity abundance, still can
Enough transmit the packet, the application it is determined that before node current operating state, according to the packet end-to-end off period, identical
Destination node and sending node between multipair reception/sending time slots pair are set, to ensure wireless network data transmission reliability.
Brief description of the drawings
Fig. 1 is that a kind of industry wireless network dispatching method flow based on loop power taking provided in an embodiment of the present invention is illustrated
Figure；
Fig. 2 is a kind of industry wireless network dispatching device structural representation based on loop power taking provided in an embodiment of the present invention
Figure.
Specific embodiment
With reference to embodiment in detail the application is described in detail, but the application is not limited to these embodiments.
Referring to Fig. 1, a kind of industry wireless network dispatching method based on loop power taking, the party are the embodiment of the invention provides
Method includes：
101st, node current operating state is determined, working condition includes transmission state and reception state；
Specifically, when not existing data to be forwarded bag in node, determine that node current operating state is reception state；If
When there is data to be forwarded bag in node, determine that node current operating state is transmission state.
102nd, whether energy requirements are met according to node current operating state decision node dump energy, if not, performing
Step 103；If it is, performing step 104；
Specifically, whether energy requirements are met according to node current operating state decision node dump energy, is：
If energy consumption needed for the node of the state of transmission is ETx, ETx=Eelec×l+ε×l×dα, QTXTo send the node of state
Dump energy；
Wherein, EelecThe electricity of consumption that to be modal processor need per bit, l is data packet length, ε be transmission amplify because
Number, α is path loss index, dαRepresent the α power of d.
If energy consumption needed for the node of reception state is ERx, ERx=Eelec× l, QRXIt is the node dump energy of reception state；
Work as QTX>ETx, or QRX>ERx, confirm that node dump energy meets energy requirements.
103rd, node continues to charge in the loop；
Further, in order to improve charging rate, the transmission reliability of packet is improved, the embodiment of the present invention also includes：
Node improves partial pressure class, continues to charge in the loop, to reach quick charge, meets energy requirements, passes in time
Transmission of data bag.
104th, node is waken up, when node working condition is reception state, packet is received in the default time slot that receives；Work as section
When point working condition is transmission state, packet is sent in default sending time slots.
Further, when node working condition is transmission state, also wrapped before default sending time slots send packet
Include：
When packet to be sent exceeds the off period, packet to be sent is abandoned, and node is switched into charged state.
Further, the embodiment of the present invention also includes：
When node is after default sending time slots send packet, the partial pressure class of loop power taking is reduced.
It should be noted that node power taking power is smaller, its power taking has multiple partial pressure class, can be according to the current value in loop
Setting.By taking the THUM wireless HART adapters of Emerson as an example, when loop current is minimum value 3.5mA, highest partial pressure class
Partial pressure maximum be 2.25V, when loop current is maximum 25mA, the partial pressure minimum value of minimum partial pressure class is 1.2V.
Partial pressure class has corresponding charge efficiency, in time slot and node that node can be pre-allocated according to network manager
The off period of packet is adjusted to the partial pressure class of itself, to reach quick charge, improve packet real-time and can
By property.In practical application, the partial pressure class of node according to the off period of packet in node, can be set, when in node
Off period of packet nearer time slot, the partial pressure class of node is higher, the charging rate of node is also just improve, so as to reduce
Due to the transmission delay that not enough power supply causes.
Because the embodiment of the present invention employs loop power taking, therefore after node has sent packet, loop can be reduced
The partial pressure class of power taking, to ensure that loop does not reduce loop mass because of significantly partial pressure.
Further, keep electricity sufficient in order that obtaining node time instance, the embodiment of the present invention also includes：
After node confirms that packet is successfully received, dormancy charged state is switched to, to charge in time.
The transmission of packet can be influenceed due to node dump energy deficiency, in order that packet is when reception/transmission is missed
After gap, after node electricity abundance, remain able to transmit the packet, the embodiment of the present invention is it is determined that node current operating state
Before, also include：
According to the packet end-to-end off period, multipair connecing is set between identical destination node and sending node and is transmitted/received
Time slot pair is sent, to ensure wireless network data transmission reliability.
In the prior art, wireless network mostly using battery-operated node constitute, data flow by way of multi-hop, according to
The time slot and channel allocated in advance are transmitted.But by radio node volumetric constraint, node carrying electricity is limited, for needing
The system to monitor for a long time, node cannot ensure network transmission reliably and with long-term, therefore using battery-operated node composition
Wireless network is not particularly suited for the wireless network environment for needing to be monitored for a long time.
In the embodiment of the present invention, node determines current operating state, Ran Hougen according to whether there is packet to be forwarded
Whether meet energy requirements according to working condition decision node dump energy, if being unsatisfactory for energy requirements, node is in the loop
Continue to charge；If meeting energy requirements, node is waken up, when node working condition is reception state, in default reception
Gap receives packet；When node working condition is transmission state, packet, the embodiment of the present invention are sent in default sending time slots
Node not enough power supply is fundamentally solved the problems, such as using the mode of loop power taking, the life of long period industry wireless network is extended
Deposit the time, and loop power taking is not influenceed by natural environment and climate etc., it is only related to loop current, therefore the power taking efficiency of node is steady
Fixed, compared with the wireless network of the energy acquisition such as solar energy, wind energy, heat energy node composition, reliability is higher, so as to improve nothing
The reliability of line data transmission in network, is particularly suited for some meters sensor nodes and frequency is relatively low but needs long-term prison
The wireless network environment of control；Further, when node dump energy is unsatisfactory for energy requirements, node improves partial pressure class,
Continue to charge in loop, to reach quick charge, meet energy requirements, timely transmission packet；Further, when node sends
After packet, the partial pressure class of loop power taking is reduced, it is ensured that loop will not reduce quality because of significantly partial pressure；Further, also
According to the off period of packet in node, the partial pressure class of node can be set, when the off period of packet gets in node
Near time slot, the partial pressure class of node is higher, also just improves the charging rate of node, so as to reduce because not enough power supply causes
Transmission delay；Further, in order that packet is after reception/sending time slots are missed, after node electricity abundance, still can
Enough transmit the packet, the embodiment of the present invention it is determined that before node current operating state, according to the packet end-to-end off period,
Multipair reception/sending time slots pair are set between identical destination node and sending node, to ensure that wireless network data is transmitted
Reliability.
Referring to Fig. 2, a kind of industry wireless network dispatching device based on loop power taking, the dress are the embodiment of the invention provides
Put including：Determining module 201, judge module 202, charging module 203, wake module 204 and scheduler module 205；
Determining module 201, for determining node current operating state, working condition includes transmission state and reception state；
Judge module 202, for whether meeting energy requirements according to node current operating state decision node dump energy,
If not, triggering charging module 203；If it is, triggering wake module 204；
Charging module 203, for continuing to charge in the loop to node；
Wake module 204, for waking up node；
Scheduler module 204, for when node working condition is reception state, packet being received in the default time slot that receives；
When node working condition is transmission state, packet is sent in default sending time slots.
Further, the embodiment of the present invention also includes：Discard module, for scheduler module 204 send packet before,
When confirming that packet to be sent exceeds the off period, packet to be sent is abandoned, and node is switched into charged state.
Further, the embodiment of the present invention also includes：Module is reduced, after sending packet in scheduler module 204,
Reduce the partial pressure class of loop power taking.
Further, keep electricity sufficient in order that obtaining node time instance, the embodiment of the present invention also includes：Handover module, uses
In after node confirms that packet is successfully received, dormancy charged state is switched to, to charge in time.
It should be noted that node power taking power is smaller, its power taking has multiple partial pressure class, can be according to the current value in loop
Setting.Partial pressure class has corresponding charge efficiency, and node can be according to number in the time slot of network manager predistribution and node
The partial pressure class of itself is adjusted according to the off period of bag, to reach quick charge, improves the real-time and reliability of packet
Property.Therefore, the embodiment of the present invention also includes setting module, for the off period according to packet in node, sets dividing for node
Pressure class.Specifically, when the time slot that the off period of packet in node is nearer, setting module sets the partial pressure shelves of the node
It is secondary higher.
The transmission of packet can be influenceed due to node dump energy deficiency, in order that packet is when reception/transmission is missed
After gap, after node electricity abundance, remain able to transmit the packet, the embodiment of the present invention also includes：Setup module, for root
According to the packet end-to-end off period, multipair reception/sending time slots pair are set between identical destination node and sending node.
In the embodiment of the present invention, node determines current operating state, Ran Hougen according to whether there is packet to be forwarded
Whether meet energy requirements according to working condition decision node dump energy, if being unsatisfactory for energy requirements, node is in the loop
Continue to charge；If meeting energy requirements, node is waken up, when node working condition is reception state, in default reception
Gap receives packet；When node working condition is transmission state, packet, the embodiment of the present invention are sent in default sending time slots
Node not enough power supply is fundamentally solved the problems, such as using the mode of loop power taking, the life of long period industry wireless network is extended
Deposit the time, and loop power taking is not influenceed by natural environment and climate etc., it is only related to loop current, therefore the power taking efficiency of node is steady
Fixed, compared with the wireless network of the energy acquisition such as solar energy, wind energy, heat energy node composition, reliability is higher, so as to improve nothing
The reliability of line data transmission in network, is particularly suited for some meters sensor nodes and frequency is relatively low but needs long-term prison
The wireless network environment of control；Further, when node dump energy is unsatisfactory for energy requirements, node improves partial pressure class,
Continue to charge in loop, to reach quick charge, meet energy requirements, timely transmission packet；Further, when node sends
After packet, the partial pressure class of loop power taking is reduced, it is ensured that loop will not reduce quality because of significantly partial pressure；Further, also
According to the off period of packet in node, the partial pressure class of node can be set, when the off period of packet gets in node
Near time slot, the partial pressure class of node is higher, also just improves the charging rate of node, so as to reduce because not enough power supply causes
Transmission delay；Further, in order that packet is after reception/sending time slots are missed, after node electricity abundance, still can
Enough transmit the packet, the embodiment of the present invention it is determined that before node current operating state, according to the packet end-to-end off period,
Multipair reception/sending time slots pair are set between identical destination node and sending node, to ensure that wireless network data is transmitted
Reliability.
The above, is only several embodiments of the application, any type of limitation is not done to the application, although this Shen
Please disclosed as above with preferred embodiment, but and be not used to limit the application, any those skilled in the art are not taking off
In the range of technical scheme, make a little variation using the technology contents of the disclosure above or modification is equal to
Effect case study on implementation, belongs in the range of technical scheme.
Claims (10)
1. a kind of industry wireless network dispatching method based on loop power taking, it is characterised in that including：
Determine node current operating state, working condition includes transmission state and reception state；
Whether energy requirements are met according to node current operating state decision node dump energy, if not, node is in the loop
Continue to charge；If it is, waking up node, when node working condition is reception state, packet is received in the default time slot that receives；
When node working condition is transmission state, packet is sent in default sending time slots.
2. method according to claim 1, it is characterised in that determine node current operating state, specially：
When not existing data to be forwarded bag in node, determine that node current operating state is reception state；
If there is data to be forwarded bag in node, determine that node current operating state is transmission state.
3. method according to claim 1, it is characterised in that according to node current operating state decision node dump energy
Whether energy requirements are met, specially：
If energy consumption needed for the node of the state of transmission is ETx, ETx=Eelec×l+ε×l×dα, QTXFor the node for sending state is remaining
Electricity；
If energy consumption needed for the node of reception state is ERx, ERx=Eelec× l, QRXIt is the node dump energy of reception state；
Wherein, EelecIt is the electricity of modal processor needs consumption per bit, l is data packet length, and ε is transmission magnification factor, α
It is path loss index, dαRepresent the α power of d；
Work as QTX>ETx, or QRX>ERx, confirm that node dump energy meets energy requirements.
4. method according to claim 1, it is characterised in that node continues to charge in the loop, specially：
Node improves partial pressure class, continues to charge in the loop.
5. method according to claim 1, it is characterised in that before default sending time slots send packet, also include：
When packet to be sent exceeds the off period, packet to be sent is abandoned, switch to charged state.
6. method according to claim 1, it is characterised in that also include：
When node is after default sending time slots send packet, the partial pressure class of loop power taking is reduced.
7. the method according to claim 4 or 6, it is characterised in that the partial pressure class cuts according to packet in node
Only the phase set.
8. method according to claim 1, it is characterised in that it is determined that before node current operating state, also including：
According to the packet end-to-end off period, when multipair reception/transmission is set between identical destination node and sending node
Gap pair.
9. a kind of industry wireless network dispatching device based on loop power taking, it is characterised in that described device includes：
Determining module, for determining node current operating state, working condition includes transmission state and reception state；
Judge module, for whether meeting energy requirements according to node current operating state decision node dump energy, if not,
Triggering charging module；If it is, triggering wake module；
Charging module, for continuing to charge in the loop to node；
Wake module, for waking up node；
Scheduler module, for when node working condition is reception state, packet being received in the default time slot that receives；When node work
When making state for transmission state, packet is sent in default sending time slots.
10. device according to claim 9, it is characterised in that also include：
Module is reduced, after sending packet in the scheduler module, the partial pressure class of loop power taking is reduced.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036783A (en) * | 2011-12-23 | 2013-04-10 | 山东黄金集团有限公司 | Deep space sensor network multi-path routing method based on delay tolerant network (DTN) |
| CN104270805A (en) * | 2014-10-16 | 2015-01-07 | 桂林电子科技大学 | Dynamic-target-tracking-oriented sleeping scheduling method for nodes of energy capturing sensor network |
| CN105634103A (en) * | 2016-02-23 | 2016-06-01 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Power supply management system and method applicable to wirelessly powered sensor node |
-
2016
- 2016-12-15 CN CN201611162121.1A patent/CN106793034B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036783A (en) * | 2011-12-23 | 2013-04-10 | 山东黄金集团有限公司 | Deep space sensor network multi-path routing method based on delay tolerant network (DTN) |
| CN104270805A (en) * | 2014-10-16 | 2015-01-07 | 桂林电子科技大学 | Dynamic-target-tracking-oriented sleeping scheduling method for nodes of energy capturing sensor network |
| CN105634103A (en) * | 2016-02-23 | 2016-06-01 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Power supply management system and method applicable to wirelessly powered sensor node |
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