CN202694561U - Photovoltaic power station monitoring video and downlink communication coaxial cable transmission device - Google Patents
Photovoltaic power station monitoring video and downlink communication coaxial cable transmission device Download PDFInfo
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- CN202694561U CN202694561U CN 201220294023 CN201220294023U CN202694561U CN 202694561 U CN202694561 U CN 202694561U CN 201220294023 CN201220294023 CN 201220294023 CN 201220294023 U CN201220294023 U CN 201220294023U CN 202694561 U CN202694561 U CN 202694561U
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- demodular unit
- transmitting device
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Abstract
A photovoltaic power station monitoring video and downlink communication coaxial cable transmission device comprises an acquisition part, a transmission part and a master control part. The acquisition part comprises a sub-modem and a plurality of acquisition units and connecting cables; the transmission part comprises a plurality of two-way repeaters and equipped coaxial cables; and the master control part comprises a plurality of display terminals, a control platform, a terminal modem and connecting cables. The photovoltaic power station monitoring video and downlink communication coaxial cable transmission device is convenient and easy to install, and is integrated by utilizing the combination of the mature and existing cable television equipment and the network technology. Via the coaxial cables, the photovoltaic power station monitoring video and downlink communication coaxial cable transmission device utilizes the UHF (ultrahigh frequency) and VHF (very high frequency) bands of microwave radio frequency to modulate and transmit uploaded acquired signals and the FM (frequency modulation) band to modulate and transmit downloaded control signals, and utilizes the control platform to play the acquired information on the display terminal.
Description
Technical field
The utility model relates to a kind of photovoltaic plant monitoring transmitting device.
Background technology
The photovoltaic plant monitoring is exactly the relevant informations such as each road DC voltage, electric current, generated energy, solar radiation and wind-force size with photovoltaic plant, the test cross of also wanting that connects that need be incorporated into the power networks flows the whether information such as fault of voltage, electric current, use the photovoltaic plant data acquisition unit that these equipment are carried out data acquisition, then upload in the webserver or the local computing by modes such as GPRS, Ethernet, WIFI, make the user can be in the internet or local computing check related data, make things convenient for power management personnel and user that the service data of photovoltaic plant is checked and manage.
Being used in the photovoltaic plant monitoring transmitted the common selecting data cable of each data transfer line, as surpasses five class netting twines or single mode and multimode communication cable etc.Surpassing five class netting twines is that twisted-pair feeder generally is applied in the fields such as telecommunications, internet, and its advantage is that transfer rate is high, and cost is also lower.But its shortcoming be transmission range only at hundred meter levels, can't directly pass the video live image.Fiber optic cables in single mode and the multimode communication cable (Optic Cable) are although be the preferably selection of signal long-distance transmission, its anti-electromagnetic interference capability is strong, volume is little, decay little, its shortcoming is the expensive of optical cable, transmitter, receiver, optical cable is extremely tight at stringing wiring process construction requirement in addition, needs numerous human resources and speciality tool.In addition, although light signal loss in optical fiber is very low, very serious to the decay of signal in electric light, opto-electronic conversion that transmitting terminal and receiving end carry out, so will guarantee to transmit without Insertion Loss, just must in transmission, add the high-gain polystage amplifier, will guarantee that also circuit can steady operation.
The utility model content
Problem for the prior art existence, the purpose of this utility model is to provide a kind of photovoltaic plant monitor video and downgoing communication with the cable transmitting device, this device utilizes existing wire cable technology, carries out the signal transmission together with existing equipment and integrated photovoltaic plant monitor video and the downgoing communication of network technology combination with the cable transmitting device.This transmitting device easy for installation simple and easy, expense is low, the transfer rate of signal is high and long transmission distance.
For achieving the above object, a kind of photovoltaic plant monitor video of the utility model and downgoing communication comprise collection section for data acquisition, are used for the transport part of data transmission and are used for the master control section of control device integral body with the cable transmitting device; Described collection section comprises minute modulator-demodular unit and some collecting units; Described transport part contains some both-way trunks, the first concentric cable and the second concentric cable; Described master control section comprises some display terminals, control platform, terminal modem and connection cable; Described some collecting units all link to each other with a minute modulator-demodular unit by connection cable; Described both-way trunk links to each other with terminal modem with described minute modulator-demodular unit with the second concentric cable by the first concentric cable respectively; Described terminal modem links to each other with some display terminals with described control platform respectively by cable; The control signal of described control platform issue, after the terminal modem modulation, reach both-way trunk through the second concentric cable, reach minute modulator-demodular unit by the first concentric cable again and carry out demodulation, the signal after the demodulation reaches under cable in each described collecting unit; The described instruction acquisition signal that each collecting unit basis is received is also passed a minute modulator-demodular unit back and is modulated, signal after the modulation is oppositely passed terminal modem back through both-way trunk and concentric cable again and is carried out demodulation, according to the designated command of control platform restituted signal is switched in the corresponding display terminal subsequently to show.
Further, described terminal modem is the modulation and demodulation function that has radiofrequency signal, is controlled the control signal that passes is down carried out rf modulations, uploaded the modulator-demodular unit that collection signal carries out radio demodulating to modulated.
Further, described both-way trunk is the repeater that has with cable two-way radio-frequency signal enlarging function.
Further, modulator-demodular unit had the modulation and demodulation function to radiofrequency signal in described minute, controlled the control signal that passes is down carried out radio demodulating, carried out the modulator-demodular unit of rf modulations to uploading collection signal.
Further, described concentric cable is the function with the modulated radiofrequency signal of transmission.
Further, described control platform is set to Computer Intelligent Control System.
Further, described display terminal comprises audio frequency and video and communication signal display interface.
Further, described terminal modem can be connected by one-to-many with described minute modulator-demodular unit.
A kind of photovoltaic plant monitor video of the utility model and downgoing communication with the cable transmitting device be a kind of easy for installation simple and easy, utilize the integrated photovoltaic plant monitor video of wire cable TV maturation and off-the-shelf equipment and network technology combination and downgoing communication with the cable transmitting device.Utilize the UHF of microwave radio, the collection signal that VHF wave band modulation transmissions is uploaded by concentric cable; The control signal of utilizing FM wave band modulation transmissions to pass is down broadcasted Information Monitoring by the control platform at display terminal.The advantage of the transmitting device in the utility model is: 1, the strong interference immunity of concentric cable, its metallic shield net have played two effects 1, the common ground of signal and the gauze screens of signal; 2, concentric cable is widely used in its gold standard of transmission, the technology maturation of audio frequency and video or radio frequency, and the transfer rate of signal and distance are greater than data line, and cost is then far below optical cable, and is various with the obvious advantage.
Description of drawings
Fig. 1 is overall connection work schematic diagram of the present utility model.
Embodiment
As shown in Figure 1, the utility model photovoltaic plant monitor video and downgoing communication comprise collection section, transport part and master control section with the cable transmitting device.Up cable and descending cable that collection section connects between being reached by minute modulator-demodular unit 5 and some collecting units 6 form, each collecting unit 6 all passes to minute modulator-demodular unit 5 by up cable with the data that collect, and by descending cable control signal is passed to each collecting unit 6 by a minute modulator-demodular unit.The transport part comprises that some both-way trunks 4 reach and each both-way trunk 4 matching used the first concentric cable 71 and second concentric cable 72; Master control section then comprises some display terminals 1, control platform 2, terminal modem 3 and connection cable.Minute modulator-demodular unit 5 of collection section links to each other with the first concentric cable 71 with the both-way trunk 4 of transport part; The terminal modem 3 of master control section links to each other with the second concentric cable 72 with the both-way trunk 4 of transport part.Terminal modem 3 can carry out modulation and demodulation to the radiofrequency signal that receives under the control of master control section; Both-way trunk 4 has with cable two-way radio-frequency signal enlarging function; Divide modulator-demodular unit 5 under the control of master control section, to carry out modulation and demodulation to radiofrequency signal.Terminal modem 3 can be connected by one-to-many with a minute modulator-demodular unit 5.
During work, control platform 2 issuing control signals 8 in the master control section, this control signal 8 passes to terminal modem 3 through the cable that connects control platform 2 and terminal modem 3, after terminal modem 3 is modulated control signal 8, again through connecting the second concentric cable 72 descending both-way trunks 4 that pass between terminal modem 3 and the both-way trunk 4, pass to minute modulator-demodular unit 5 via connecting first concentric cable 71 of both-way trunk 4 with minute modulator-demodular unit 5 again, control signal 8 is after the demodulation of undue modulator-demodular unit 5, pass to each collecting unit 6 through cable again, finish the descending transmission of control signal 8.Pass minute modulator-demodular unit 5 back by the audio/video information that collecting unit 6 gathers, divide modulator-demodular unit 5 to be modulated into radiofrequency signal with signal collected 9, then carry out demodulation through the first concentric cable 71, both-way trunk 4 and the second concentric cable 72 up terminal modems 3 of passing back successively again, the designated command according to 2 issues of control platform switches to corresponding display terminal 1 with restituted signal subsequently.Hollow arrow among Fig. 1 is the transmission direction of collection signal 9, and the single line arrow is the transmission direction of control signal 8.
Employed control signal 8 comprises UHF, VHF wave band and FM wave band for radiofrequency signal in the utility model.Preferred UHF, VHF wave band are set to transmit collection signal 9, and the FM wave band is set up transmission of control signals 8.
Claims (8)
1. a photovoltaic plant monitor video and downgoing communication is characterized in that with the cable transmitting device, comprise collection section for data acquisition, be used for the transport part of data transmission and be used for the master control section of control device integral body; Described collection section comprises minute modulator-demodular unit and some collecting units; Described transport part contains some both-way trunks, the first concentric cable and the second concentric cable; Described master control section comprises some display terminals, control platform, terminal modem and connection cable; Described some collecting units all link to each other with a minute modulator-demodular unit by connection cable; Described both-way trunk links to each other with terminal modem with described minute modulator-demodular unit with the second concentric cable by the first concentric cable respectively; Described terminal modem links to each other with some display terminals with described control platform by cable; The control signal of described control platform issue, after the terminal modem modulation, reach both-way trunk through the second concentric cable, reach minute modulator-demodular unit by the first concentric cable again and carry out demodulation, the signal after the demodulation reaches under cable in each described collecting unit; The described instruction acquisition signal that each collecting unit basis is received is also passed a minute modulator-demodular unit back and is modulated, then oppositely pass terminal modem back through both-way trunk and concentric cable again and carry out demodulation, according to the designated command of control platform restituted signal is switched in the corresponding display terminal subsequently and show.
According to claim 1 described photovoltaic plant monitor video and downgoing communication with the cable transmitting device, it is characterized in that, described terminal modem is the modulation and demodulation function that has radiofrequency signal, is controlled the control signal that passes is down carried out rf modulations, uploaded the modulator-demodular unit that collection signal carries out radio demodulating to modulated.
3. described photovoltaic plant monitor video and downgoing communication is characterized in that with the cable transmitting device according to claim 1, and described both-way trunk is the repeater that has with cable two-way radio-frequency signal enlarging function.
According to claim 1 described photovoltaic plant monitor video and downgoing communication with the cable transmitting device, it is characterized in that, modulator-demodular unit had the modulation and demodulation function to radiofrequency signal in described minute, controlled the control signal that passes is down carried out radio demodulating, carried out the modulator-demodular unit of rf modulations to uploading collection signal.
5. described photovoltaic plant monitor video and downgoing communication is characterized in that with the cable transmitting device according to claim 1, and described concentric cable is the function with the modulated radiofrequency signal of transmission.
6. described photovoltaic plant monitor video and downgoing communication is characterized in that with the cable transmitting device according to claim 1, and described control platform is set to Computer Intelligent Control System.
7. described photovoltaic plant monitor video and downgoing communication is characterized in that with the cable transmitting device according to claim 1, and described display terminal comprises audio frequency and video and communication signal display interface.
8. described photovoltaic plant monitor video and downgoing communication is characterized in that with the cable transmitting device according to claim 1, and described terminal modem is connected with described minute modulator-demodular unit one-to-many.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220294023 CN202694561U (en) | 2012-06-21 | 2012-06-21 | Photovoltaic power station monitoring video and downlink communication coaxial cable transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220294023 CN202694561U (en) | 2012-06-21 | 2012-06-21 | Photovoltaic power station monitoring video and downlink communication coaxial cable transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202694561U true CN202694561U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220294023 Expired - Fee Related CN202694561U (en) | 2012-06-21 | 2012-06-21 | Photovoltaic power station monitoring video and downlink communication coaxial cable transmission device |
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| CN (1) | CN202694561U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451866A (en) * | 2013-09-05 | 2013-12-18 | 新杰克缝纫机股份有限公司 | Remote monitoring and fault diagnosis system of industrial sewing machine |
| CN105356841A (en) * | 2014-08-19 | 2016-02-24 | 上海金友光伏科技有限公司 | Converging, inverting and boosting monitoring metering integrated electric appliance for photovoltaic power generating system |
-
2012
- 2012-06-21 CN CN 201220294023 patent/CN202694561U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451866A (en) * | 2013-09-05 | 2013-12-18 | 新杰克缝纫机股份有限公司 | Remote monitoring and fault diagnosis system of industrial sewing machine |
| CN105356841A (en) * | 2014-08-19 | 2016-02-24 | 上海金友光伏科技有限公司 | Converging, inverting and boosting monitoring metering integrated electric appliance for photovoltaic power generating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: RAYSPOWER ENERGY GROUP CO., LTD. Free format text: FORMER NAME: NEW ENERGY POWER CO., LTD. IN HAI DUONG |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 102200 Changping District science and Technology Park, Beijing Road No. 17 Patentee after: Rayspower Energy Group Co., Ltd. Address before: 102200 Changping District science and Technology Park, Beijing Road No. 17 Patentee before: RAYSPOWER NEW ENERGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20180621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |