CN107907739A - A kind of power phase recognizer based on wireless sense network - Google Patents
A kind of power phase recognizer based on wireless sense network Download PDFInfo
- Publication number
- CN107907739A CN107907739A CN201710951595.2A CN201710951595A CN107907739A CN 107907739 A CN107907739 A CN 107907739A CN 201710951595 A CN201710951595 A CN 201710951595A CN 107907739 A CN107907739 A CN 107907739A
- Authority
- CN
- China
- Prior art keywords
- time slot
- node
- time
- phase
- wireless sense
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/715—Interference-related aspects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
Abstract
The present invention discloses a kind of power phase recognizer based on wireless sense network, using smart simultaneous techniques, three-phase electricity zero-crossing point technology, to provide data supporting for phase identification algorithm.
Description
Technical field
The present invention relates to the phase identification field of single-phase meter, more particularly to a kind of power phase based on wireless sense network to know
Other algorithm.
Background technology
In intelligent meter data recording industry, current radio meter register has accounted for quite heavy status, and existing radio meter register scheme is all
CSMA or thick simultaneous techniques, can not provide technical support to phase-detection.Using smart simultaneous techniques, three-phase electricity zero-crossing point technology,
To provide data supporting for phase identification algorithm.
The content of the invention
It is an object of the invention to provide a kind of power phase recognizer based on wireless sense network, using smart synchronous skill
Art, three-phase electricity zero-crossing point technology, to provide data supporting for phase identification algorithm.
In order to achieve the above object, technical solution provided by the invention is：A kind of power phase based on wireless sense network
Recognizer comprises the following steps：
1）Based on COBWEB ad hoc network agreements, node runs on the public meterings of 470MHz-510MHz and exempts to apply for frequency range；
2）Make to realize communication between all nodes in time slot, and the time frame being made up of a series of time slot, execution cycle property weight
It is multiple, broadcasted in specific time slot or message transmission and confirmation are completed in the form of unicast with neighbor node；
3）Node is carried out under being uniformly coordinated of gateway, according to frequency hopping image in correct time slot using defined channel and neighbours
Wireless communication；
4）After each slot synchronization, each single-phase Electrical change residing for each node, will when each phase crosses at 0 using zero crossing technology
It converts porch signal, break period and the time of next time slot in nodes records production, and is preserved, and gateway is equally done
This action, if the time is identical or in error range, you can be considered residing same equiphase.
The beneficial effects of the invention are as follows：A kind of power phase recognizer based on wireless sense network, using smart synchronous skill
Art, three-phase electricity zero-crossing point technology, to provide data supporting for phase identification algorithm.
Brief description of the drawings
Fig. 1 is the frequency modulation schematic diagram of the present invention；
Fig. 2 is the frame structure figure of the present invention；
Fig. 3 is the slot synchronization schematic diagram of the present invention；
Fig. 4 is the slot synchronization variation diagram corresponding with single-phase electricity of the present invention.
Embodiment
Embodiment 1
A kind of power phase recognizer based on wireless sense network as shown in Figs 1-4, comprises the following steps：
1）Based on COBWEB ad hoc network agreements, node runs on the public meterings of 470MHz-510MHz and exempts to apply for frequency range；
2）Make to realize communication between all nodes in time slot, and the time frame being made up of a series of time slot, execution cycle property weight
It is multiple, broadcasted in specific time slot or message transmission and confirmation are completed in the form of unicast with neighbor node；
3）Node is carried out under being uniformly coordinated of gateway, according to frequency hopping image in correct time slot using defined channel and neighbours
Wireless communication；
4）After each slot synchronization, each single-phase Electrical change residing for each node, will when each phase crosses at 0 using zero crossing technology
It converts porch signal, break period and the time of next time slot in nodes records production, and is preserved, and gateway is equally done
This action, if the time is identical or in error range, you can be considered residing same equiphase.
As shown in Figure 1, Cobweb agreements introduce frequency hopping, system is improved in multi-path jamming, transmitting clutter interference
Etc. the communication capacity under adverse circumstances.On the basis of TDMA, Cobweb agreements have formatted node to given frequency at the same time
Road set uses rule.Frequency point used in wireless communication is carried out according to specified frequency hopping image rule between node, front and rear
Communication uses different frequency points.Node is under being uniformly coordinated of gateway, according to frequency hopping image as defined in correct time slot use
Channel and neighbours carry out wireless communication, since frequency hopping image using rule meets pseudo-random characteristics, ensure that inter-node communication makes
Channel possesses enough frequency spans, the radio interference that can be effective against inside and outside system.
As Figure 2-3, each SS nodes are after networking, the presence of the external periodic broadcast declaration network of meeting, and from
The network informations such as the available frequency point that oneself hop count, network uses, sequence generating mode.Since the broadcast of node can be in each time frame
Fixed time slot is sent, so after the electrification of SS nodes, receiving terminal can necessarily hear the wide of remaining node in a time frame
Broadcast message.We select the father node of oneself according to the energy of the broadcast packet listened to, execution route selection algorithm, and
Time reference source.Here is the flow that child node carries out time synchronization with father node.
T1：The time slot starting point of transmitting terminal.
T2：The set time of CCA, it is set as 4ms.
T3：The leading and synchronization character time is sent.
T4：The starting point of next time slot.
R2：Receiving terminal receives the timestamp of synchronization character.
R1：Receiving terminal is according to R2 come the time slot starting point estimated.
R1 =R2 – (TsTxSyncOffset + TxProDelay + TxOffset);
TsTxSyncOffset is to send the processing time that leading and synchronization character is fixed, preamble length 5Byte, sync word length
2Byte, time is（5+2）*8/20K = 2800us.
TxProDelay is the constant time lag that signal is propagated, and is 500us.
TxOffset is the delay that CCA is fixed, and is 4000us.
The R2 times, are the capturing functions using the CAP modules of timer.After RFIC synchronization characters obtain, it can cause GPIO
Signal is produced, so as to be captured by CPU.
After SS nodes network, to correct the frequency drift of crystal oscillator, it is necessary to periodically synchronize correction to the time.Together
Sample, output time slot starting point is estimated also with the arrival time of broadcast, so as to be synchronized with father node.The topology of network is tree
Shape structure, it is synchronous successively.The specific method of synchronization is consistent with the networking method of synchronization.
As shown in figure 4, using zero crossing technology, when each phase crosses at 0, porch signal, nodes records are converted
Break period and the time of next time slot in production, and preserved, gateway equally does this action, if the time is identical or in error
In the range of, you can it is considered residing same equiphase.
A kind of power phase recognizer based on wireless sense network of the present embodiment, using smart simultaneous techniques, three-phase electricity
Zero crossing technology, to provide data supporting for phase identification algorithm.
Claims (1)
1. a kind of power phase recognizer based on wireless sense network, comprises the following steps：
1）Based on COBWEB ad hoc network agreements, node runs on the public meterings of 470MHz-510MHz and exempts to apply for frequency range；
2）Make to realize communication between all nodes in time slot, and the time frame being made up of a series of time slot, execution cycle property weight
It is multiple, broadcasted in specific time slot or message transmission and confirmation are completed in the form of unicast with neighbor node；
3）Node is carried out under being uniformly coordinated of gateway, according to frequency hopping image in correct time slot using defined channel and neighbours
Wireless communication；
4）After each slot synchronization, each single-phase Electrical change residing for each node, will when each phase crosses at 0 using zero crossing technology
It converts porch signal, break period and the time of next time slot in nodes records production, and is preserved, and gateway is equally done
This action, if the time is identical or in error range, you can be considered residing same equiphase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710951595.2A CN107907739A (en) | 2017-10-13 | 2017-10-13 | A kind of power phase recognizer based on wireless sense network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710951595.2A CN107907739A (en) | 2017-10-13 | 2017-10-13 | A kind of power phase recognizer based on wireless sense network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107907739A true CN107907739A (en) | 2018-04-13 |
Family
ID=61840581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710951595.2A Pending CN107907739A (en) | 2017-10-13 | 2017-10-13 | A kind of power phase recognizer based on wireless sense network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107907739A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991512A (en) * | 2019-02-22 | 2019-07-09 | 江苏方天电力技术有限公司 | Based on the synchronous low-tension distribution box user's phase big data discrimination method of sudden load change |
| CN110248320A (en) * | 2019-06-13 | 2019-09-17 | 无锡士康通讯技术有限公司 | Wireless self-organization network management method based on time synchronization and Frequency Synchronization |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006110713A2 (en) * | 2005-04-08 | 2006-10-19 | Vanderbilt University | System and methods of radio interference based localization in sensor networks |
| CN102721871A (en) * | 2012-06-08 | 2012-10-10 | 上海市电力公司 | Method for measuring phase difference of voltage and total current of zinc oxide arrester |
| CN103278687A (en) * | 2012-09-28 | 2013-09-04 | 天津学子电力设备科技有限公司 | Power distribution network phase recognition device based on gprs (general packet radio service) |
| CN103457635A (en) * | 2013-08-06 | 2013-12-18 | 珠海中慧微电子有限公司 | Phase position identification method of communication node in low-voltage power-line carrier communication system |
| CN104022990A (en) * | 2014-06-20 | 2014-09-03 | 哈尔滨工业大学 | Distributed beam forming carrier phase synchronization method based on sea wireless sensor network |
| CN204649833U (en) * | 2015-05-29 | 2015-09-16 | 淮安苏达电气有限公司 | A kind of shunting of the large ground network based on ZIGBEE wireless sense network phasor measuring set |
| CN106455041A (en) * | 2016-12-14 | 2017-02-22 | 国家电网公司 | Time synchronization method and system of electric power wireless sensor network based on power transmission line |
-
2017
- 2017-10-13 CN CN201710951595.2A patent/CN107907739A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006110713A2 (en) * | 2005-04-08 | 2006-10-19 | Vanderbilt University | System and methods of radio interference based localization in sensor networks |
| CN102721871A (en) * | 2012-06-08 | 2012-10-10 | 上海市电力公司 | Method for measuring phase difference of voltage and total current of zinc oxide arrester |
| CN103278687A (en) * | 2012-09-28 | 2013-09-04 | 天津学子电力设备科技有限公司 | Power distribution network phase recognition device based on gprs (general packet radio service) |
| CN103457635A (en) * | 2013-08-06 | 2013-12-18 | 珠海中慧微电子有限公司 | Phase position identification method of communication node in low-voltage power-line carrier communication system |
| CN104022990A (en) * | 2014-06-20 | 2014-09-03 | 哈尔滨工业大学 | Distributed beam forming carrier phase synchronization method based on sea wireless sensor network |
| CN204649833U (en) * | 2015-05-29 | 2015-09-16 | 淮安苏达电气有限公司 | A kind of shunting of the large ground network based on ZIGBEE wireless sense network phasor measuring set |
| CN106455041A (en) * | 2016-12-14 | 2017-02-22 | 国家电网公司 | Time synchronization method and system of electric power wireless sensor network based on power transmission line |
Non-Patent Citations (1)
| Title |
|---|
| YIXINGMAOF: "Cobweb组网协议", 《HTTPS://WWW.DOCIN.COM/P-1075895638.HTML&ISPAY=1》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991512A (en) * | 2019-02-22 | 2019-07-09 | 江苏方天电力技术有限公司 | Based on the synchronous low-tension distribution box user's phase big data discrimination method of sudden load change |
| CN109991512B (en) * | 2019-02-22 | 2021-07-13 | 江苏方天电力技术有限公司 | Low-voltage distribution box user phase big data identification method based on load sudden change synchronization |
| CN110248320A (en) * | 2019-06-13 | 2019-09-17 | 无锡士康通讯技术有限公司 | Wireless self-organization network management method based on time synchronization and Frequency Synchronization |
| CN110248320B (en) * | 2019-06-13 | 2021-03-23 | 无锡士康通讯技术有限公司 | Wireless self-organizing network management method based on time synchronization and frequency synchronization |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100695074B1 (en) | Time synchronizing method in wireless sensor networks | |
| CN106162844B (en) | The implementation method of MAC protocol for wireless sensor networks based on LoRa | |
| US7830834B2 (en) | Wireless communication network including network coordinator assigning time slots and channels to nodes to provide collision-free schedules and data aggregation method for the same | |
| US10111160B2 (en) | NAN data link multi-hop topology | |
| CN105009647B (en) | System and method for the synchronization in neighborhood aware network | |
| WO2014085141A2 (en) | Systems and methods of selective scanning for ad-hoc networks | |
| WO2023077760A1 (en) | Industrial wireless network-and-tsn fusion-oriented cross-network time synchronization method | |
| WO2016078349A1 (en) | Data transmission method, communication device, and communication system | |
| JP2007166278A (en) | Radio communication system and radio communicating method | |
| JP3561180B2 (en) | Base station synchronization in wireless telecommunications systems | |
| CN105959977B (en) | Without the hybrid synchronous one step process containing support node in D2D Mesh network under honeycomb covering scene | |
| CN107907739A (en) | A kind of power phase recognizer based on wireless sense network | |
| CN107425882A (en) | A kind of calibration method and device of broadband power line communication network | |
| CN103355005A (en) | Method for improved topology mapping in wireless communication networks | |
| CN107113653A (en) | WLAN AP assist type multichannels coexist | |
| CN105101098A (en) | MANET (Mobile Ad Hoc Network) physical layer synchronizing method | |
| CN103957589A (en) | Multi-hop and low-cost distributed clock synchronization method | |
| CN103957591A (en) | Node pair based wireless sensor network time synchronization method | |
| EP3723327B1 (en) | System and method for communication in an industrial environment | |
| Zhou et al. | DRL-assisted topology identification and time synchronization for PIoT-empowered distributed renewable resource dispatch | |
| CN204759722U (en) | Local communication system and concentrated system of checking meter that micropower is wireless | |
| CN104753622A (en) | Low-overhead time synchronization method based on receivers under start network | |
| Bizagwira et al. | Synchronization protocol for dynamic environment: design and prototype experiments | |
| CN113708349A (en) | Differential protection method and device for power transmission and distribution line | |
| Pari et al. | Bio-inspired time synchronization for cognitive radio ad hoc networks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180413 |
|
| WD01 | Invention patent application deemed withdrawn after publication |