CN103023571A - Light wireless networking communication system and light wireless networking communication method suitable for electricity consumption information gathering - Google Patents
Light wireless networking communication system and light wireless networking communication method suitable for electricity consumption information gathering Download PDFInfo
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- CN103023571A CN103023571A CN2012105183048A CN201210518304A CN103023571A CN 103023571 A CN103023571 A CN 103023571A CN 2012105183048 A CN2012105183048 A CN 2012105183048A CN 201210518304 A CN201210518304 A CN 201210518304A CN 103023571 A CN103023571 A CN 103023571A
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Abstract
The invention discloses a light wireless networking communication system and a light wireless networking communication method suitable for electricity consumption information gathering. A light wireless networking comprises a light wireless baseband unit, a light wireless radio-frequency unit and an Access Point (AP) terminal, an electricity consumption information gathering main station is communicated with the wireless AP terminal through the light wireless baseband unit and the light wireless radio-frequency unit, and the light wireless baseband unit and the light wireless radio-frequency unit are communicated through optical fiber. By the aid of a star-type networking method and a chain-type networking method among the light wireless Bit Buffer Unit (BBU), the light wireless Remote Radio Unit (RRU) and the wireless AP based on the total internet protocol (IP) framework, the access problem of the last one kilometer of the electricity consumption information gathering is solved effectively, and the electricity consumption information gathering system can meet requirements of complete covering, complete gathering and complete fee control. The far wireless signal can be achieved, the communication networking can be achieved combined with the structural features of the electricity line, and the requirements of the electricity consumption information gathering system can be met effectively.
Description
Technical field
The present invention relates to a kind of wireless mixed networking communication system of light and method thereof that power information gathers that be applicable to, belong to the communication of power system technical field.
Background technology
For a long time, the collection of power consumer power information lacks effective means of communication.Present alternative communication mode has optical fiber private network (EPON, industrial ethernet switch), power line carrier, wireless private network (micro power consumption wireless, broadband wireless), wireless public network (GPRS, CDMA etc.), but in actual applications, consider the factors such as application demand, Financial cost, practicality, do not have a kind of communication mode can effectively satisfy the requirement of power information acquisition system " full collection, all standing, control in full ".
The optical fiber private network possesses high bandwidth, the reliable and stable advantage of communication, but need to lay a large amount of optical cables, and the capital construction cost is higher, and quantities is larger, and especially the subregion optical cable construction is difficult to carry out, and optical fiber communication is difficult to accomplish all standing, has communication blind district.
Power line carrier directly utilizes existing power circuit to realize communication, possesses the advantage that construction is simple, cost is low, but communication distance is short, speed is lower, and the communication success rate is difficult to guarantee, is difficult to obtain large-scale application.
Micro power consumption wireless (ZigBee, WiFi etc.) technology is simple, convenient and flexible installation, and low, the networking flexibility of cost, but bandwidth is lower, communication distance is shorter, and communication efficiency is subjected to the factor affecting such as building is blocked, meteorological condition larger, is difficult to popularize.
Broadband wireless (McWill, LTE230M etc.) adopts 3G, the 4G communication technology, the advantage that possesses traffic rate height, distance, but need to set up higher antenna, the addressing difficulty, difficulty of construction is high, broadband wireless is subjected to region, Influence on Architecture simultaneously, still has many blind areas, is difficult to accomplish all standing.
Based on above analysis, at present electric power system still has to rely on the wireless public network mode to realize the power information collection, but the wireless public network mode need to be paid high running cost, and is all lacking guarantee aspect reliability and the Information Security, is difficult to satisfy the demand of intelligent power.
Summary of the invention
For the deficiency that exists on the prior art, the present invention seeks to be to provide a kind of advantage that combines optical fiber EPON and broadband wireless communications mode, utilize the EPON network that traditional wireless base station is separated into Base Band Unit and radio frequency unit two parts, the realization wireless signal zooms out, and combination has been satisfied the requirement of power information acquisition system effectively with the wireless mixed networking communication means of light that is applicable to the power information collection of the design feature realization constructing communication network of electric line.
To achieve these goals, the present invention realizes by the following technical solutions:
A kind of light wireless networking method that is applicable to the power information collection adopts the light wireless networking to communicate to the power information collection; It is characterized in that described smooth wireless networking comprises light radio base band unit, light radio frequency units, wireless aps terminal; Described smooth radio base band unit is to be merged by Base Band Unit and optical line terminal to form, and described smooth radio frequency units is to be merged by radio frequency unit and optical node to form; Its method is: the power information collection adopts light radio base band unit and light radio frequency units and wireless aps terminal to communicate.
The above-mentioned method that communicates with the wireless aps terminal comprises: signal step of transmitting and signal receiving step;
Another one purpose of the present invention provides a kind of light wireless networking communication system that power information gathers that is applicable to, and it comprises: power information gathers main website and light wireless networking; It is characterized in that described smooth wireless networking comprises light radio base band unit, light radio frequency units and AP terminal, described power information gathers main website and communicates by light radio base band unit and light radio frequency units and wireless aps terminal.Between described smooth radio base band unit and the light radio frequency units by optical fiber communication.
Described smooth radio base band unit be connected baseband processor, the first duplexer filter that is connected with baseband processor, the first frequency converter that is connected with the first duplexer filter, the first transducer, first signal processing unit and optical line terminal; Secondary signal processing unit, the second transducer, the second duplexer filter and the reception antenna that is connected with the second duplexer filter and the second frequency converter that described smooth radio frequency units comprises optical node, is connected with optical node; Described the first transducer, the second transducer respectively with the first frequency converter be connected frequency converter and be connected; Described optical node is connected with optical line terminal by optical fiber.
Described the first frequency converter and the second frequency converter include upconverter and low-converter, and described transducer comprises A/D converter and D/A converter, and described A/D converter is connected with low-converter with upconverter respectively with D/A converter.
As preferably, described smooth radio base band unit is arranged on transformer station, and described smooth radio frequency units is arranged on uses radio area.
As preferably, described smooth radio base band unit and light radio frequency units according to power circuit with star-like mode networking.
As preferably, described smooth radio base band unit and light radio frequency units adopt optical splitter step by step light splitting with the networking of chain mode.
The present invention separates with radio frequency unit by the Base Band Unit of light wireless technology with wireless base station device, has reduced the volume of base station equipment; By optical fiber communication, can effectively carry out distributed arrangement by fiber optic network to radio frequency unit between Base Band Unit and the radio frequency unit, enlarge wireless coverage.In the power information acquisition system, the light wireless networking mainly comprises star-like networking and chain networking dual mode.
Networking mode disclosed by the invention adopts the all-IP framework, and the wireless BBU of light, the wireless RRU of light, wireless aps all support the IP mode to access, and have improved the transparency of network, are conducive to network management and failure diagnosis.By EPON provided by the invention and wireless fusion and network-building method, for the power information collection communicating system provides a reliable channel, effectively solved power information collection " last kilometer " and covered a difficult problem.Help to realize the requirement of power information acquisition system " full collection, all standing, control in full ".
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is the light wireless networking communication system architecture block diagram that power information gathers that is applicable to of the present invention;
Fig. 2 is the star-like power circuit figure of one embodiment of the invention.
Fig. 3 is the hub-and-spoke configuration constructing communication network figure of one embodiment of the invention.
Fig. 4 is the chain power circuit figure of another embodiment of the present invention.
Fig. 5 is the chain structure constructing communication network figure of another embodiment of the present invention.
Fig. 6 is a concrete distribution line figure of 35kV transformer station;
Fig. 7 is group-net communication figure of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.
As shown in Figure 1, a kind of light wireless networking method that power information gathers that is applicable to of the present invention, it is to adopt the light wireless networking to communicate to the power information collection; This light wireless networking comprises light radio base band unit (BBU) and the wireless basic radio frequency unit of light (RRU) two parts, BBU and OLT(optical line terminal, optical line terminal) merges the wireless BBU of formation light, RRU and ONU (Optical Network Unit, optical node) merge and form the wireless RRU of light.Its method is that the telecommunications breath gathers and adopts the wireless BBU of light and the wireless RRU of light to communicate.
For realizing said method, what it adopted is a kind of light wireless networking communication system that power information gathers that is applicable to, and comprises that power information gathers main website and light wireless networking; Wherein, the light wireless networking comprises the wireless BBU of light, the wireless RRU of light and AP terminal, and described power information gathers main website and communicates by the wireless BBU of light and the wireless RRU of light and wireless aps terminal.The wireless BBU of the light of present embodiment be connected baseband processor, the first duplexer filter that is connected with baseband processor, the first frequency converter that is connected with the first duplexer filter, the first transducer, first signal processing unit and OLT; This first signal processing unit connects respectively the first transducer and OLT.
Secondary signal processing unit, the second transducer, the second duplexer filter and reception antenna and the second frequency converter that the light radio frequency units comprises ONU, is connected with ONU; This reception antenna be connected frequency converter and all be connected with the second duplexer filter, described the first transducer, the second transducer respectively with the first frequency converter be connected frequency converter and be connected; Wherein, the first frequency converter and the second frequency converter include upconverter and low-converter, and transducer comprises A/D converter and D/A converter, and described A/D converter is connected with low-converter with upconverter respectively with D/A converter.ONU of the present invention is connected with OLT by optical fiber, and it separates with the light radio frequency units by the light radio base band unit of light wireless technology with wireless base station device, has reduced the volume of base station equipment; By optical fiber communication, can effectively carry out distributed arrangement by fiber optic network to radio frequency unit between light radio base band unit and the light radio frequency units, enlarge wireless coverage.
It is worth mentioning that in the above-mentioned smooth wireless networking method, the implementation method of its communication comprises signal step of transmitting and signal receiving step; Wherein, the signal emission process is: after the baseband signal of baseband processor is passed through the first duplexer filter filtering, change intermediate-freuqncy signal into through up-conversion, be digital signal through the A/D transitions again, digital signal is carried out the processing such as parallel-serial conversion, error correction, framing through the first signal processing unit, change the data flow of ether packet format into, be transferred to far-end by OLT; After the ONU of far-end receives, data flow is through processing such as the also conversion of secondary signal processing unit string, error correction, be reduced to digital signal and carry out the D/A conversion, be reduced to intermediate-freuqncy signal after converting, be modulated to radiofrequency signal through up-conversion again, emission of radio frequency signals after processing through signal amplification, the second duplexer filter filtering etc.
The signal receiving course is: opposite with the signal emission process, the radiofrequency signal that receives, by carrying out first preposition amplification after the second duplexer filter filtering, be modulated to intermediate-freuqncy signal through down-conversion again, intermediate-freuqncy signal is digital signal through the A/D transitions, carry out the processing such as parallel-serial conversion, error correction, framing through the secondary signal processing unit again, change the data flow of ether packet format into, be transferred to local side by ONU; After the OLT of local side receives, data flow is through processing such as the also conversion of first signal processing unit string, error correction, change digital signal into and carry out the D/A conversion, be reduced to intermediate-freuqncy signal after converting, be modulated to baseband signal through down-conversion once again, and after the first filter process, send baseband processor to, the settling signal receiving course.
For better being set forth the present invention, existing star-like networking and chain networking dual mode by the light wireless networking illustrates as follows;
In the power information acquisition system, the light wireless networking comprises star-like networking and chain networking dual mode, as shown in Figures 2 and 3, star-like networking structure is applicable to set up wireless coverage at many power circuits of transformer station, and the wireless BBU of light is positioned at transformer station, and the wireless RRU of light is positioned at the radio area of using that will monitor, AP is the wireless terminal access point, can adopt autonomous device to be connected by data wire with electric terminal, also can adopt standard module to be integrated among the electric terminal, networking as shown in Figure 3.The characteristics of this networking mode be between BBU and the different RRUs by many fiber direct connections, networking is simple, dilatation is convenient, the link of signal process is few, circuit reliability is higher, shortcoming be BBU with RRU between be connected and need to take many fibre cores.
As shown in Figure 4 and Figure 5, the chain networking structure be applicable to have on the power circuit a plurality of with radio area need the monitoring, the wireless BBU of light is positioned at transformer station, the wireless RRU of light is positioned at platform district and the near zone thereof that will monitor, AP is the wireless terminal access point, can adopt autonomous device to be connected by data wire with electric terminal, also can adopt standard module to be integrated among the electric terminal, networking as shown in Figure 5.The characteristics of this networking mode are to pass through an optical fiber between BBU and the different RRUs, and the optical splitter step by step mode of light splitting connects, and it is few to take fibre core, and shortcoming is the progression increase along with light splitting, and circuit reliability reduces step by step.
Fig. 6 is a concrete distribution line figure of 35kV transformer station, comprises two distribution lines 582 and 583, and two platform districts are arranged on every circuit.Optical cable has covered basic routing line in this network, arrives with near the radio area, but fails to cover with all interior electric terminals of radio area, needs to adopt communication to extend covering, and therefore adopting the networking of light wireless communication mode is optimal selection.
Fig. 7 is the light wireless communication networking diagram for above-mentioned circuit.The wireless BBU of light has merged the function of OLT and radio base band unit, is positioned at transformer station, first line of a couplet direction and backbone transport equipment connection, connect power information and gather main website, second line of a couplet direction adopts the light mouth directly to connect optical-fibre channel, because the wireless BBU of light does not have radio frequency part, does not therefore need to set up radio-frequency antenna.The wireless RRU of light has merged the function of ONU and radio frequency units, is positioned at the place that can reach with near the optical cable radio area, and second line of a couplet direction adopts the light mouth directly to connect optical-fibre channel, and realization is communicated by letter with the wireless BBU's of light, and second line of a couplet direction is communicated by letter with wireless aps by radio-frequency antenna.The wireless RRU of light needs the send and receive radiofrequency signal, therefore need to set up radio-frequency antenna, and the height of antenna is directly proportional with the scope that needs to cover.Wireless aps is positioned at the electric terminal place that need to realize that power information gathers, and can be Wireless Telecom Equipment independently as required, also can be that communication module realizes integrated with electric terminal.Wireless aps first line of a couplet direction realizes communicating by letter by wireless mode with the wireless RRU of light, and second line of a couplet direction realizes communicating by letter by data wire with electric terminal.
In addition to the implementation, the present invention also is adapted to other chain, the star-like networking mode of deriving.All employings are equal to the technical scheme of replacement or equivalent transformation form, all drop on the protection range of requirement of the present invention.
Based on above-mentioned, the present invention separates with radio frequency unit by the Base Band Unit of light wireless technology with wireless base station device, has reduced the volume of base station equipment; By optical fiber communication, can effectively carry out distributed arrangement by fiber optic network to radio frequency unit between Base Band Unit and the radio frequency unit, enlarge wireless coverage.And networking mode adopts the all-IP framework, and the wireless BBU of light, the wireless RRU of light, wireless aps all support the IP mode to access, and have improved the transparency of network, are conducive to network management and failure diagnosis.By EPON provided by the invention and wireless fusion and network-building method, for the power information collection communicating system provides a reliable channel, effectively solved power information collection " last kilometer " and covered a difficult problem.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (10)
1. one kind is applicable to the light wireless networking communication system that power information gathers, and comprises that power information gathers main website and light wireless networking; It is characterized in that, described smooth wireless networking comprises light radio base band unit, light radio frequency units and AP terminal, described power information gathers main website and communicates by light radio base band unit and light radio frequency units and wireless aps terminal, between described smooth radio base band unit and the light radio frequency units by optical fiber communication.
2. a kind of light wireless networking communication system that power information gathers that is applicable to according to claim 1 is characterized in that, described smooth radio base band unit and light radio frequency units according to power circuit with star-like mode networking.
3. a kind of light wireless networking communication system that power information gathers that is applicable to according to claim 1 is characterized in that, described smooth radio base band unit and light radio frequency units employing optical splitter step by step light splitting with the networking of chain mode.
4. according to claim 1 to the described a kind of light wireless networking communication system that power information gathers that is applicable to of 3 any one, it is characterized in that, described smooth radio base band unit be connected baseband processor, the first duplexer filter that is connected with baseband processor, the first frequency converter that is connected with the first duplexer filter, the first transducer, first signal processing unit and optical line terminal; Described first signal processing unit connects respectively the first transducer and optical line terminal;
Secondary signal processing unit, the second transducer, the second duplexer filter and the reception antenna that is connected with the second duplexer filter and the second frequency converter that described smooth radio frequency units comprises optical node, is connected with optical node;
Described the first transducer, the second transducer respectively with the first frequency converter be connected frequency converter and be connected; Described optical node is connected with optical line terminal by optical fiber.
5. a kind of light wireless networking communication system that power information gathers that is applicable to according to claim 4, it is characterized in that, described the first frequency converter and the second frequency converter include upconverter and low-converter, described transducer comprises A/D converter and D/A converter, and described A/D converter is connected with low-converter with upconverter respectively with D/A converter.
6. one kind is applicable to the light wireless networking method that power information gathers, and adopts the light wireless networking to communicate to the power information collection; It is characterized in that described smooth wireless networking comprises light radio base band unit, light radio frequency units, wireless aps terminal; Described smooth radio base band unit is to be merged by Base Band Unit and optical line terminal to form, and described smooth radio frequency units is to be merged by radio frequency unit and optical node to form; Its method is: the power information collection adopts light radio base band unit and light radio frequency units and wireless aps terminal to communicate.
7. smooth wireless networking method according to claim 6 is characterized in that, described smooth radio base band unit is arranged on transformer station, and described smooth radio frequency units is arranged on uses radio area.
8. smooth wireless networking method according to claim 7 is characterized in that, described smooth radio base band unit and light radio frequency units according to power circuit with star-like mode networking.
9. smooth wireless networking method according to claim 7 is characterized in that, described smooth radio base band unit and light radio frequency units adopt optical splitter step by step light splitting with the networking of chain mode.
10. according to claim 6 to the described smooth wireless networking method of 9 any one, wherein, the above-mentioned method that communicates with the wireless aps terminal comprises: signal step of transmitting and signal receiving step;
Described signal step of transmitting is: at first baseband signal is by after the duplexer filter filtering, change intermediate-freuqncy signal into through up-conversion, be digital signal through the A/D transitions again, digital signal is carried out parallel-serial conversion, error correction, framing processing through the first signal processing unit, changes the data flow of ether packet format into; Then be transferred to far-end by optical line terminal; After the optical node of far-end receives, data flow process secondary signal processing unit string and conversion, correction process, be reduced to digital signal and carry out the D/A conversion, be reduced to intermediate-freuqncy signal after converting, be modulated to radiofrequency signal through up-conversion again, emission of radio frequency signals after processing through signal amplification, the first duplexer filter filtering;
Described signal receiving step is: the radiofrequency signal that receives, by carrying out first preposition amplification after the second duplexer filter filtering, be modulated to intermediate-freuqncy signal through down-conversion again, intermediate-freuqncy signal is digital signal through the A/D transitions, carry out parallel-serial conversion, error correction, framing processing through the secondary signal processing unit again, change the data flow of ether packet format into, be transferred to local side by optical node; After the optical line terminal of local side receives, data flow process first signal processing unit string and conversion, correction process, change digital signal into and carry out the D/A conversion, be reduced to intermediate-freuqncy signal after converting, be modulated to baseband signal through down-conversion once again, and after the first filter process, send baseband processor to, the settling signal receiving course.
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| CN105846856A (en) * | 2015-12-31 | 2016-08-10 | 北京邮电大学 | Networking mode evaluation method and device of electric power communication |
| CN106302166A (en) * | 2015-05-26 | 2017-01-04 | 中兴通讯股份有限公司 | A kind of data transmission method and device |
| CN106358321A (en) * | 2015-07-17 | 2017-01-25 | 上海贝尔股份有限公司 | Front-end return system for indoor wireless transmission |
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Application publication date: 20130403 |