CN105208565A - Physical layer framework for micro-power wireless area coverage electric power communication private network - Google Patents

Physical layer framework for micro-power wireless area coverage electric power communication private network Download PDF

Info

Publication number
CN105208565A
CN105208565A CN201510389876.4A CN201510389876A CN105208565A CN 105208565 A CN105208565 A CN 105208565A CN 201510389876 A CN201510389876 A CN 201510389876A CN 105208565 A CN105208565 A CN 105208565A
Authority
CN
China
Prior art keywords
physical layer
communication
private network
frequency
wireless
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
Application number
CN201510389876.4A
Other languages
Chinese (zh)
Inventor
赵宇营
刘钧元
梁睿
张贲
孙洁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Tianjin Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201510389876.4A priority Critical patent/CN105208565A/en
Publication of CN105208565A publication Critical patent/CN105208565A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18Network planning tools
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24Cell structures
    • H04W16/26Cell enhancers or enhancement, e.g. for tunnels, building shadow
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10Dynamic resource partitioning
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention relates to a physical layer framework for a micro-power wireless area coverage electric power communication private network, which is characterized in that an appropriate micro-power wireless communication platform is adopted to act as a communication physical layer, an effective data coding and decoding model, an appropriate channel multiplexing technology and a frequency-hopping technology based channel selection technology are adopted, the channel multiplexing mode adopts TDMA (time division multiple access) data, FDMA (frequency division multiple access) data and a signal multiplexing model, and a plurality of sub-bands are adopted and multiplexed to the same area in a selected wireless communication frequency band range, thereby realizing synchronous transmission of a plurality of signals in the same area. The physical layer framework provided by the invention for the micro-power wireless area coverage electric power communication private network can realize short-distance power amplification, and can realize area coverage of a communication system; a wireless communication mode is adopted in the area, so that communication lines are not required to be laid; and a micro-power wireless communication system is adopted, and wireless data in the area is guaranteed to be transmitted timely and effectively, thereby ensuring the reliability of data communication in the physical layer.

Description

For the physical layer framework of the wireless region overlay power communication private network of micropower
Technical field
The invention belongs to electric power checkout equipment field, especially a kind of physical layer framework of the region overlay power communication private network wireless for micropower.
Background technology
Intelligent grid communication system is at present primarily of optical fiber telecommunications system, carrier communication system and wireless communication system three kinds of communication mode compositions, wherein communication mainly refers to the communication be made up of wireless public networks such as GPRS and 3G, and the collection that this kind of communication mode has applied to marketing system on a large scale is at present copied in, two distant distribution terminal systems distant with part one.
In existing wireless public network communication system, exist charging costly, wireless signal covers the problem of the multiple deficiency such as not comprehensive.Equally, in fiber optic communication systems, there is construction and lay the cost problem such as costly, in some specific region, is not the communication system solution of optimal extensive laying networking.In addition, in distribution communication system, often equipment is laid and the medium voltage network side of 10KV, and be a more thorny system scheme to the low pressure power taking of equipment, main problem is embodied in following several aspect:
More thorny technical problem in the above-mentioned intelligent grid, adopts comparatively suitable as the communication solution of the specific region in smart electric grid system of micropower wireless system, the main following problem solved in smart electric grid system:
Lay cost and difficulty problem: in intelligent grid communication system, the laying of communication line is a more scabrous construction difficult problem always.
Wireless public network can not all standing problem: wireless public network uses the wireless public network of telecom operators, and in remote areas, partially enclosed space, wireless public network coverage is complete, causes numerous user and power dispatching data not to upload in time.The problem that Reliability of Wireless Communication is not high: owing to adopting the communication system of wireless public network, due to shared teledata transmission network, is comparatively easy to caught by the user that has nothing to do in a large number or disturb, there is larger potential safety hazard.
Distribution network systems mesolow power taking problem: in remote 10KV distribution region, the power taking problem of communication equipment and terminal equipment is the larger technical barrier that puzzlement system is promoted always.Adopting the wireless communication system of low-power consumption, by reducing the mode of power consumption and initiatively dormancy, the power consumption of equipment can be made in mw level, part field adopts battery powered mode can maintain the equipment operation of long period.
In sum, the region power communication private network adopting the communication mode of low-power wireless to build can effectively make up in intelligent grid communication system can not an insoluble system difficult problem, the communication system for intelligent grid builds and provides a kind of newer communication mode.
Summary of the invention
The object of the invention is to overcome prior art deficiency, provide a kind of communication system for intelligent grid to build the physical layer framework providing a kind of region overlay power communication private network wireless for micropower of newer communication mode.
The technical solution used in the present invention is:
A kind of physical layer framework of the region overlay power communication private network wireless for micropower, adopting suitable micro power radio communication platform as communication physical layer, comprise and adopt effective code and decode model, appropriate channel multiplex technique and the channel selecting technology based on frequency hopping, wherein channel multiplexing mode adopts TDMA+FDMA two kinds of data and signal multiplexing model within the scope of the wireless communication frequency band selected, adopt multiple sub-band to be multiplexed in same region, realize multiple signal synchronous transmission in the same area.
And described micro power radio communication platform adopts 230M, 315M, 433M or 868M frequency range.
And described micro power radio communication platform adopts 230M or 868M two frequency ranges,
And the code encoding/decoding mode of described code and decode model adopts non-return-to-zero coding.
And, the passage of described frequency hopping adopts the mechanism of sequence hopping to carry out the selection of frequency band: when micropower wireless terminal node needs to send data, frequency detecting is carried out at the frequency of acquiescence, deposit in case of interferers at frequency band, detect one by one according to frequency hop sequences and expand, until frequency band meets communicating requirement.
And described micro power radio communication platform transmitted power reaches 24dbm, and receiving sensitivity reaches-102dBm.
Advantage of the present invention and good effect are:
The physical layer framework of the region overlay power communication private network wireless for micropower provided by the invention can realize short-range power amplification, the region overlay of communication system can be realized, communication is adopted in a region, do not need to lay communication line, micro power radio communication system is adopted in system, the timely and effective transmission of wireless data in support area, thus ensure that the reliability from physical layer data communication.
Embodiment:
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of physical layer framework of the region overlay power communication private network wireless for micropower, adopting suitable micro power radio communication platform as communication physical layer, and based on this communications platform, build the traffic model being applicable to electric power wireless private network, to meet and the area covering communication technology in certain area, in native system, the part hierarchy module of OSI seven layer protocol according to standard network device is carried out the functions expanding of device systems, is specifically divided into following components:
In the structure of wireless communication system, first need to select an operable radio band.According to the regulation of State Radio Regulatory Commission, operable frequency range has the frequency ranges such as 230M, 315M, 433M, 868M.Wherein 230M is the special frequency range of electric power wireless communication system, in order to both meet the requirement of communication distance, also meets communication band quantitative requirement, and this project research approach selects 230M or 868M two frequency ranges.
On physical layer exploitation, reach safe, reliable, efficient data communication requirements, need to build healthy and strong data communication platform, comprising the effective code and decode model of employing, appropriate channel multiplex technique and the channel selecting technology based on frequency hopping, the communication module of concrete physical layer is described below:
A. code encoding/decoding mode is selected: in the present system, can select one comparatively effectively simple coded system: non-return-to-zero coding (NRZ).
B. channel multiplexing mode adopts TDMA+FDMA two kinds of data and signal multiplexing model.First, within the scope of the wireless communication frequency band selected, adopt multiple sub-band to be multiplexed in same region, realize multiple signal synchronous transmission in the same area; Secondly, time because number of channels is limited, number of devices is more, there is multiple equipment and share the situation causing single pass data-reusing in same passage, therefore two kinds of data communication modes of CSMA+TDMA are adopted at single pass data-reusing: adopt in the collision avoidance mechanism sense channel of CSMA whether have data collision, under the prerequisite that data are not conflicted, the data model of TDMA is adopted to carry out communication data to the multi-group data in same passage multiplexing.
C. for the frequency band selection problem of equipment in frequency range, the mechanism of sequence hopping can be adopted to carry out the selection of frequency band: when micropower wireless terminal node needs to send data, first frequency detecting is carried out at the frequency of acquiescence, deposit in case of interferers at frequency band, detect one by one according to frequency hop sequences and expand, until frequency band meets communicating requirement.
Realize certain region overlay, the research and development of the PA module of enhancement mode be carried out.Under the communication environment of accessible model, reach unobstructed communication distance 2KM ~ 3KM; 2 face walls can be penetrated in coverage.Specific performance index is: transmitted power reaches 24dbm, and receiving sensitivity reaches-102dBm.
Although disclose embodiments of the invention for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the present invention and claims, various replacement, change and amendment are all possible, therefore, scope of the present invention is not limited to the content disclosed in embodiment.

Claims (6)

1. the physical layer framework for the wireless region overlay power communication private network of micropower, it is characterized in that: adopting suitable micro power radio communication platform as communication physical layer, comprise and adopt effective code and decode model, appropriate channel multiplex technique and the channel selecting technology based on frequency hopping, wherein channel multiplexing mode adopts TDMA+FDMA two kinds of data and signal multiplexing model within the scope of the wireless communication frequency band selected, adopt multiple sub-band to be multiplexed in same region, realize multiple signal synchronous transmission in the same area.
2. the physical layer framework of the region overlay power communication private network wireless for micropower according to claim 1, is characterized in that: described micro power radio communication platform adopts 230M, 315M, 433M or 868M frequency range.
3. the physical layer framework of the region overlay power communication private network wireless for micropower according to claim 2, is characterized in that: described micro power radio communication platform adopts 230M or 868M two frequency ranges.
4. the physical layer framework of the region overlay power communication private network wireless for micropower according to claim 1, is characterized in that: the code encoding/decoding mode of described code and decode model adopts non-return-to-zero coding.
5. the physical layer framework of the region overlay power communication private network wireless for micropower according to claim 1, it is characterized in that: the passage of described frequency hopping adopts the mechanism of sequence hopping to carry out the selection of frequency band: when micropower wireless terminal node needs to send data, frequency detecting is carried out at the frequency of acquiescence, deposit in case of interferers at frequency band, detect one by one according to frequency hop sequences and expand, until frequency band meets communicating requirement.
6. the physical layer framework of the region overlay power communication private network wireless for micropower according to claim 1, is characterized in that: described micro power radio communication platform transmitted power reaches 24dbm, and receiving sensitivity reaches-102dBm.
CN201510389876.4A 2015-07-06 2015-07-06 Physical layer framework for micro-power wireless area coverage electric power communication private network Pending CN105208565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510389876.4A CN105208565A (en) 2015-07-06 2015-07-06 Physical layer framework for micro-power wireless area coverage electric power communication private network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510389876.4A CN105208565A (en) 2015-07-06 2015-07-06 Physical layer framework for micro-power wireless area coverage electric power communication private network

Publications (1)

Publication Number Publication Date
CN105208565A true CN105208565A (en) 2015-12-30

Family

ID=54955923

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510389876.4A Pending CN105208565A (en) 2015-07-06 2015-07-06 Physical layer framework for micro-power wireless area coverage electric power communication private network

Country Status (1)

Country Link
CN (1) CN105208565A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1208517A (en) * 1995-12-11 1999-02-17 艾利森公司 Re-orthogonalization of wideband CDMA signals
CN102984754A (en) * 2012-11-06 2013-03-20 深圳市国电科技通信有限公司 Method of wireless electricity transmission based on orthogonal frequency division multiplexing (OFDM)
CN104201781A (en) * 2014-09-10 2014-12-10 国家电网公司 Small-power wireless private network system applied to smart grid

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1208517A (en) * 1995-12-11 1999-02-17 艾利森公司 Re-orthogonalization of wideband CDMA signals
CN102984754A (en) * 2012-11-06 2013-03-20 深圳市国电科技通信有限公司 Method of wireless electricity transmission based on orthogonal frequency division multiplexing (OFDM)
CN104201781A (en) * 2014-09-10 2014-12-10 国家电网公司 Small-power wireless private network system applied to smart grid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
胡致远 等: "微功率无线通信技术在电力线路中的适应性分析", 《电力系统自动化》 *

Similar Documents

Publication Publication Date Title
CN102446403B (en) Novel power utilization information collection system based on TD-LTE (time division-long term evolution) wireless broadband
CN202434037U (en) Novel consumed electricity information acquisition system based on time division long term evolution (TD-LTE) wireless broadband
CN103199922A (en) Coal mining working face communication system based on visible light communication and method thereof
CN103280091A (en) Electric power meter-reading system
CN110661846B (en) Ultra-narrow band power internet of things communication system and communication method thereof
CN101815274A (en) Power emergency communication network and method
CN105141343A (en) Cable tunnel positioning and broadcasting system employing VLC-PLC technologies
CN104486317A (en) Common-optical fiber transmission method for multiuser quantum key distribution of power systems
CN105306140A (en) Networking system for visible light communication and networking method thereof
Min et al. The application of WiFi 6 technology in underground mine
CN111954227A (en) Base station and system for tunnel communication
CN102694596B (en) Method for transmitting wireless signal by using FTTH (Fiber To The Home) system
CN102710576B (en) The colourless OFDM WDM passive optical network system of relevant detection and transmission method
CN108122400A (en) A kind of power information collection communicating system
CN104902351A (en) Intelligent transformer station process level optical fiber multi-wavelength isolated communication networking method
CN202160286U (en) Distributed base station
CN104300674A (en) Distribution automation system
CN105208565A (en) Physical layer framework for micro-power wireless area coverage electric power communication private network
CN201369725Y (en) Wireless communication system for emergency and disaster relief of mine
CN216626065U (en) Mining comprehensive base station equipment with 4G, WiFi and UWB wireless transmission
CN203313418U (en) WIFI intercom base station network system
CN106953691B (en) Uplink and downlink time division multiplexing visible light full duplex communication system and method
CN105374193A (en) Three-mode heterogeneousness based method and apparatus for acquiring electricity consumption information of user
CN105071999A (en) Micropower wireless area-coverage power communication private network
CN202889638U (en) Electric power emergency communication network system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20151230

RJ01 Rejection of invention patent application after publication