CN209327468U - A kind of platform area identification device based on low pressure wideband electronic carrier wave - Google Patents

Abstract

The utility model discloses a kind of platform area identification devices based on low pressure wideband electronic carrier wave, including the broadband power line carrier based on OFDM technology, concentrator and the STA equipment website for accessing the broadband, the main equipment CCO module containing characteristic signal transmitter and interference signal transmitter is connected on the broadband power line carrier, and it is integrated with the receiver of interference signal receive capabilities, main equipment CCO module is that entire broadband power line carrier safeguards a CCO_STA clock timer, access one NTB_STA clock timer of all STA equipment synchronous maintenances in the broadband, the NTB_STA clock timer of all STA equipment websites is synchronized to CCO_STA clock timer, and in CCO_STA clock timer and NTB_STA clock Zero-crossing detection circuit is connected on the route of timer, realizes platform area the whole network automatic identification, reduces human input, improves recognition efficiency.

Description

A kind of platform area identification device based on low pressure wideband electronic carrier wave

Technical field

The utility model relates to substation field, specially a kind of platform area based on low pressure wideband electronic carrier wave identifies dress It sets.

Background technique

Family becomes the basis that relationship is marketing system, and family becomes the confusion of relationship, will lead to the incorrect of marketing system data, make Various tasks can not be executed correctly (such as the line loss that more refines), the crosstalk of platform area be family become the main reason for relationship is chaotic it One.

Platform area cross-interference issue annoyings always carrier communication scheme, although due to the isolation effect of transformer between platform area, Communication signal is significantly decayed；The signal in platform section is still through sides such as parallel line crosstalk, ground wire, space radiation Formula causes mutual influence, especially newly-built some high-rise cells, with the increase of resident's amount and each household electricity consumption, one As be powered in the same switchgear house using multiple transformers, this design exacerbates crosstalk between platform area.

For the carrier communication of single-frequency point, there is no effective solution mechanism, closes on the crosstalk in platform area for this TV station area Signal from the point of view of be exactly co-channel interference, due to using same frequency, this interference can not be eliminated, and can only be relied on system itself and be kept out of the way Mechanism is avoided, and can only use the concentrator copy reading period is manually arranged at present, progress copy reading at times, program low efficiency, And manual intervention is needed, cause O&M cost to increase；

Common platform area identifier, also known as business generaI investigation instrument, need to increase additional identification equipment, need hanging net operation, And it can only be directed to single-point identification, need to go around each line node, it is quick can not to accomplish that the family of entire supply network becomes relationship Identification, the disturbing signal for being unsatisfactory for collecting standard of copying also can generate interference signal to power grid.

Summary of the invention

In order to overcome the shortcomings of prior art, the utility model provides a kind of platform based on low pressure wideband electronic carrier wave Area's identification device can effectively solve the problem of background technique proposes.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

A kind of platform area identification device based on low pressure wideband electronic carrier wave is carried including the broadband power line based on OFDM technology Wave, concentrator and the STA equipment website for accessing the broadband, it is characterised in that: connection contains on the broadband power line carrier The main equipment CCO module of characteristic signal transmitter and interference signal transmitter, and it is integrated with connecing for interference signal receive capabilities Receipts machine, main equipment CCO module are that entire broadband power line carrier safeguards a CCO_STA clock timer, access the broadband One NTB_STA clock timer of all STA equipment synchronous maintenances, by the NTB_STA clock of all STA equipment websites Timer synchronization is to CCO_STA clock timer, and in the route of CCO_STA clock timer and NTB_STA clock timer Upper connection zero-crossing detection circuit.

Further, all STA equipment websites are all made of active reporting mode and are connected to concentrator.

Further, the zero-crossing detection circuit is the basis of physics phase identification and Network Synchronization, in the electricity of 50Hz In the line of force, a power line cycle refers to the period 20ms an of sine wave.

Further, each STA equipment Intra-site is integrated with the Signal to Noise Ratio (SNR) for collecting adjacent S TA equipment sites Collector.

Compared with prior art, the utility model has the beneficial effects that

(1) it is suitable for national most platforms area environment, the family Tai Qu is cleared and becomes relationship, can be communicated by Wi-Fi, Ethernet The modes such as communication, concentrator communication start or stop equipment identification operation

(2) there is Zenith tracking and safeguard function, prevent equipment damage, and there is access power grid environment detection function, It prevents voltage disturbance signal from malfunctioning, has multiple protective, ensure safe operation

(3) advanced low pressure perturbation technique is used, impulse current system is better than, can avoid the impact of platform area line current；Know Other speed is fast, and 30min or so completes the identification of platform area the whole network, reduces human input, improves recognition efficiency

(4) it can be realized by expansion convention and be associated with concentrator, realized platform area customer relationship intelligent management, find platform in time The user situations such as new clothes, replacement in area

(5) power industry High Reliability Design is used, guarantees equipment operation stability, Electro Magnetic Compatibility is strong, safety examination It tests better than national standard.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model.

Figure label:

1- wideband electronic line carrier wave；2- concentrator；3-STA equipment sites；4- main equipment CCO module；5- receiver；6- mistake Zero-detection circuit；

401- characteristic signal transmitter；402- interference signal transmitter.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figure 1, the utility model provides a kind of platform area identification device based on low pressure wideband electronic carrier wave, including Broadband power line carrier 1 based on OFDM technology can establish an efficiently real-time low-voltage carrier communication net in low-voltage platform area Network, concentrator and the STA equipment website 3 for accessing the broadband, connection is sent out containing characteristic signal on the broadband power line carrier 1 The main equipment CCO module 4 of machine 401 and interference signal transmitter 402 is penetrated, and is integrated with the receiver of interference signal receive capabilities 5, which is arranged on all STA equipment websites 3；

Emit based on OFDM power wire broadband carrier signal, and by characteristic signal transmitter 401 and interference signal The basis signal and interference signal that machine 402 emits combine mode and carry out the ownership judgement of platform area, and main equipment CCO module 4 emits spy Reference number, recipient judge whether this signal is that this TV station area equipment issues by receiving interference signal；

Main equipment CCO module 4 is that entire broadband power line carrier safeguards a CCO_STA clock timer, accesses the width All STA equipment websites 3 synchronous maintenance, one NTB_STA clock timer of band, by all STA equipment websites 3 NTB_STA clock timer is synchronized to CCO_STA clock timer, and in CCO_STA clock timer and NTB_STA clock meter When device route on connect zero-crossing detection circuit 6；

It is synchronous to make the whole network clock for the NTB clock that microsecond is established between main equipment CCO module 4 and STA equipment website 3；Each STA equipment website detects the difference of power frequency zero-acrross ing moment and NTB clock, and 4 timed collection of main equipment CCO module simultaneously manages STA and sets Standby 3 zero-acrross ing moment of website and deviation information carry out accurate phase zero passage analysis, while main equipment CCO mould in conjunction with transformer characteristic Block 4 combine the NTB clock of identified STA equipment website 3 cross zero-deviation, communication topology information, channel parameter, etc. characteristic factors, The electric characteristic amount that website is added carries out digital filtering and modeling analysis.

All STA equipment websites 3 are all made of active reporting mode and are connected to concentrator 2, and non-this TV station area website is adopted Concentrator 2 is reported to active reporting mode, main equipment CCO module 4 is by measurement point storage recognition result for concentrator 2 and main website Inquiry.

The zero-crossing detection circuit 6 is the basis of physics phase identification and Network Synchronization, on the power line of 50Hz, one A power line cycle refers to the period 20ms an of sine wave, at the time of acquiring zero passage network reference time NTB, with theoretical zero passage The deviation at moment, it is necessary to assure within ± 1.2ms and the characteristic parameter of transformer itself acquisition basis.

Solve original area's identifying schemes generate electric network noise, recognition efficiency it is low, can not the whole network automatic identification the drawbacks of, Broadband-based area's technology can support the whole network node automatic identification, to the statistical analysis of big data quantity, channel parameter, improve Recognition accuracy can improve existing family and become relationship confusion problem, unidentified rate success rate < 5% may be implemented, realize identification Failure rate < 0.1%, time recognition time < 24 hour.

Each STA equipment website 3 is internally integrated the Signal to Noise Ratio (SNR) collector for collecting adjacent S TA equipment sites, SNR is the ratio of signal strength and noise, mainly by inside channel decaying and noise influenced；And inside power line, it influences Main two factors of signal transmission are exactly decaying and noise；On the same line, signal transmission distance is shorter, the decaying of process With noise with regard to smaller, signal-to-noise ratio is with regard to bigger；Moreover, it is also bigger for decaying when signal passes through Space Coupling, pass through noise The Signal to Noise Ratio (SNR) mass data for collecting adjacent S TA equipment sites than SNR collector carries out statistics excavation, can carry out high precision The identification of the area Shuai Tai.

It further illustrates, the device specific product parameter of the utility model includes operating voltage: 3 × 220/380VAC ± 30%

Consume power: power consumption≤10W；

Running environment: -25 DEG C~+60 DEG C of portable running temperature；Hanging-connecting operation temperature；

- 40 DEG C~80 DEG C of degree；Relative humidity≤95%；

Clock accuracy: 23 DEG C :≤± 0.5s/d；

Communication interface: Ethernet interface, Wi-Fi interface, broadband power line carrier interface；

Extension storage: Mini SD card interface；

Characteristic signal transmission range: >=2km.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

Claims (4)

1. a kind of platform area identification device based on low pressure wideband electronic carrier wave, including the broadband power line carrier based on OFDM technology (1), concentrator (2) and the STA equipment website (3) in the broadband is accessed, it is characterised in that: the broadband power line carrier (1) Upper connection contains the main equipment CCO module (4) of characteristic signal transmitter (401) and interference signal transmitter (402), and integrated There is the receiver (5) of interference signal receive capabilities, main equipment CCO module (4) is that entire broadband power line carrier (1) safeguards one CCO_STA clock timer accesses one NTB_STA clock timer of all STA equipment synchronous maintenances in the broadband, will own The NTB_STA clock timer of the STA equipment website be synchronized to CCO_STA clock timer, and in CCO_STA clock meter When device and NTB_STA clock timer route on connect zero-crossing detection circuit (6).

2. a kind of platform area identification device based on low pressure wideband electronic carrier wave according to claim 1, it is characterised in that: institute The STA equipment website (3) having is all made of active reporting mode and is connected to concentrator (2).

3. a kind of platform area identification device based on low pressure wideband electronic carrier wave according to claim 1, it is characterised in that: institute State the basis that zero-crossing detection circuit (6) is physics phase identification and Network Synchronization, on the power line of 50Hz, a power line Period refers to the period 20ms an of sine wave.

4. a kind of platform area identification device based on low pressure wideband electronic carrier wave according to claim 1, it is characterised in that: every A STA equipment website (3) is internally integrated the Signal to Noise Ratio (SNR) collector for collecting adjacent S TA equipment sites.