CN202788814U - Power cable intermediate joint online-monitoring data concentrator - Google Patents
Power cable intermediate joint online-monitoring data concentrator Download PDFInfo
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- CN202788814U CN202788814U CN 201220400820 CN201220400820U CN202788814U CN 202788814 U CN202788814 U CN 202788814U CN 201220400820 CN201220400820 CN 201220400820 CN 201220400820 U CN201220400820 U CN 201220400820U CN 202788814 U CN202788814 U CN 202788814U
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- power cable
- intermediate joint
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- temperature measuring
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Abstract
The utility model discloses a power cable intermediate joint online-monitoring data concentrator used for data concentration and transmission of a plurality of power cable intermediate joint micro temperature measuring devices in a power cable well. The power cable well comprises a plurality of power cables. The data concentrator is mounted on one of the power cables to conduct data concentration towards other micro temperature measuring devices within the intermediate joints on the other plurality of power cables. The data concentrator transmits the concentrated data through the public wireless network to the master station inside the power cable intermediate joint online-monitoring system. The data concentrator adopts 2.4G wireless communication technology to communicate with the power cable intermediate joint micro temperature measuring device. According to the power cable intermediate joint online-monitoring data concentrator, the ambient temperature and water depth of the power cable well can be measured and data concentration and transmission of the plurality of power cable intermediate joint micro temperature measuring devices inside the same power cable wells is conducted at the same time, therefore the transformation of the wireless communication mode is realized.
Description
Technical field
The utility model belongs to power cable state on-line monitoring field, and particularly a kind of intermediate joint of electric cable online monitoring data concentrator is used for data centralization and the forwarding of the miniature temperature measuring equipment of a plurality of intermediate joint of electric cables of power cable well.
Background technology
In order to improve power supply reliability, the urban electricity supply circuit gets more and more and adopts power cables, and employing cable intermediate joint realization cable is connected with cable.The cable intermediate joint number of stoppages accounts for the cable fault total degree more than 70%, and the transition joint fault can make whole piece line outage two to five hours, has greatly affected the urban electricity supply reliability.The heat that produces because of reasons such as the high contact resistance of intermediate joint of electric cable, shelf depreciation accumulation constantly raises the temperature of cable intermediate joint, aging, the discharge current of accelerating cable insulation material progressively increase, and arrive to a certain degree to cause occuring to puncture or fire.Hence one can see that, as long as measure in real time the temperature of cable intermediate joint inside, finds as early as possible the cable intermediate joint that temperature raises, and just can in time fix a breakdown, and guarantees the normal operation of power circuit, prevents the generation of power outage.
Because the temperature of cable connector is to change continuously and slowly, so when transition joint is superheated to the accident generation, has considerable time to take measures to avoid the generation of this accident, thereby guarantee the safety of circuit.In order to reach this purpose, must set up a cover real time on-line monitoring system, in case unusual circumstance namely can be taken measures by wireless network and the timely alarm operator of transferring equipment, before fault occurs, the trouble point is isolated, imminent fault is converted into urgent defect processing, avoids power outage and improve power supply reliability.
Usually in the power cable well a plurality of intermediate joint of electric cables are arranged, so security level required is higher.For fear of causing unnecessary loss for operation power department, guarantee fortune inspection personnel's personal safety, should accomplish as far as possible in unattended situation, the environment temperature in the power cable well and depth of accumulated water are measured, to guarantee power cable well long-term safety, stable continuous operation.
Intermediate joint of electric cable all concentrates in the power cable well, in each power cable medial head miniature monitoring device is installed, and its radio signal transmission must penetrate the multilayer parcel of intermediate joint of electric cable, so the signal transmitting range is very limited.If the data retransmission to each intermediate joint of electric cable in the same power cable well is installed a data forwarding unit, its day-to-day operation and maintenance cost will spend huge.How to allow data centralization and forwarding with a plurality of intermediate joint of electric cables in the same power cable well, become this area one difficult problem.
The utility model content
For above-mentioned actual demand, the purpose of this utility model is to provide a kind of intermediate joint of electric cable online monitoring data concentrator, can measure environment temperature and depth of accumulated water in the power cable well, simultaneously with data centralization and the forwarding of the miniature temperature measuring equipment of a plurality of intermediate joint of electric cables in the same power cable well, realize the wireless communication mode conversion, saved cost and maintenance cost.
In order to address the above problem, the technical solution of the utility model is, a kind of intermediate joint of electric cable online monitoring data concentrator is provided, be used for data centralization and the forwarding of the miniature temperature measuring equipment of a plurality of intermediate joint of electric cables of power cable well, described power cable well comprises a plurality of power cables, described data concentrator is installed on one of them power cable, miniature temperature measuring equipment in the transition joint on other a plurality of power cables is carried out data centralization, described data concentrator by public wireless network the data retransmission of concentrating to the indoor intermediate joint of electric cable on-line monitoring system main website of power cable well outer monitoring, described data concentrator adopts 2.4G wireless communication technique and the miniature temperature measuring equipment of intermediate joint of electric cable to carry out communication.
In preferred embodiment of the utility model, described 2.4G wireless communication technique is selected a kind of in the 2.4G radio transmitting and receiving chip of the 2.4G radio transmitting and receiving chip of 2.4G radio transmitting and receiving chip, 2-FSK modulation technique of FSK/GFSK modulation technique or DSSS/FSK/MSK/ASK/OOK MSK modulation technique.
In preferred embodiment of the utility model, described data concentrator inside is provided with the 2.4G communication module.
In preferred embodiment of the utility model, described 2.4G communication module adopts front-end chip or the separate type LNA low-noise amplifier of built-in LNA low-noise amplifier.
In preferred embodiment of the utility model, the quantitative range of described other a plurality of power cables is 1-125.
In preferred embodiment of the utility model, described public wireless network is selected a kind of among GSM, GPRS, TD-SCDMA, WCDMA, CDMA2000, CDMA EVDO, WiFi, TD-LTE, FDD-LTE or the WiMax.In preferred embodiment of the utility model, described data concentrator adopts three-phase imbalance electric current CT automatic electricity getting device.
In preferred embodiment of the utility model, described data concentrator is that closing structure is set on one of them power cable.
The beneficial effects of the utility model are: intermediate joint of electric cable online monitoring data concentrator of the present utility model, can measure environment temperature and depth of accumulated water in the power cable well, be used for simultaneously data centralization and the forwarding of the miniature temperature measuring equipment of a plurality of intermediate joint of electric cables of power cable well, data concentrator adopts 2.4G wireless communication technique and the miniature temperature measuring equipment of intermediate joint of electric cable to carry out communication, data centralization and forwarding with the miniature temperature measuring equipment of a plurality of intermediate joint of electric cables in the same power cable well, realize the wireless communication mode conversion, saved cost and maintenance cost.
Description of drawings
Fig. 1 is the internal construction schematic diagram of power cable well one preferred embodiment in the utility model;
Being labeled as in the annex: 1, the first power cable, the 2, second power cable, 3, data concentrator, 4, intermediate joint of electric cable, 5, the power cable manhole cover plate.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that protection domain of the present utility model is made more explicit defining.
A kind of intermediate joint of electric cable online monitoring data concentrator that the utility model embodiment provides is used for data centralization and the forwarding of the miniature temperature measuring equipment of a plurality of intermediate joint of electric cables of power cable well.The power cable well comprises a plurality of power cables, and described data concentrator is installed on one of them power cable, and the miniature temperature measuring equipment of intermediate joint of electric cable all is installed in the transition joint of other a plurality of power cables.The quantitative range of other a plurality of power cables is 1-125 in the utility model, and namely the quantitative range of the miniature temperature measuring equipment of intermediate joint of electric cable is 1-125.
As shown in Figure 1, be the internal construction schematic diagram of power cable well one preferred embodiment in the utility model.This power cable well comprises power cable manhole cover plate 5 and is installed in power cable well interior the first power cable 1 and the second power cable 2, data concentrator 3 is equipped with the miniature temperature measuring equipment of an intermediate joint of electric cable (figure does not look) for closing structure is set on the first power cable 1 in the transition joint 4 of the second power cable 2.3 pairs of miniature temperature measuring equipments of intermediate joint of electric cable of data concentrator carry out data centralization, by public wireless network the data retransmission of concentrating to the indoor intermediate joint of electric cable on-line monitoring system main website of power cable well outer monitoring (figure does not look).Wherein, data concentrator 3 adopts 2.4G wireless communication technique and the miniature temperature measuring equipment of intermediate joint of electric cable to carry out communication.
3 pairs of miniature temperature measuring equipments of intermediate joint of electric cable of data concentrator carry out data centralization, by public wireless network the data retransmission of concentrating to the indoor intermediate joint of electric cable on-line monitoring system main website of power cable well outer monitoring.Wherein, public wireless network is selected a kind of among GSM, GPRS, TD-SCDMA, WCDMA, CDMA2000, CDMA EVDO, WiFi, TD-LTE, FDD-LTE or the WiMax.
Data concentrator in the utility model adopts three-phase imbalance electric current CT automatic electricity getting device.
The intermediate joint of electric cable online monitoring data concentrator that the utility model discloses, can measure environment temperature and depth of accumulated water in the power cable well, be used for simultaneously data centralization and the forwarding of the miniature temperature measuring equipment of a plurality of intermediate joint of electric cables of power cable well, data concentrator 3 adopts 2.4G wireless communication technique and the miniature temperature measuring equipment of intermediate joint of electric cable to carry out communication, data centralization and forwarding with the miniature temperature measuring equipment of a plurality of intermediate joint of electric cables in the same power cable well, realize the wireless communication mode conversion, saved cost and maintenance cost.
The above; it only is the specific embodiment of the present utility model; but protection domain of the present utility model is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the utility model; variation or the replacement that can expect without creative work all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims were limited.
Claims (8)
1. intermediate joint of electric cable online monitoring data concentrator, be used for data centralization and the forwarding of the miniature temperature measuring equipment of a plurality of intermediate joint of electric cables of power cable well, it is characterized in that, described power cable well comprises many power cables, described data concentrator is installed on one of them power cable, miniature temperature measuring equipment in the transition joint on other many power cables is carried out data centralization, described data concentrator by public wireless network the data retransmission of concentrating to the indoor intermediate joint of electric cable on-line monitoring system main website of power cable well outer monitoring, described data concentrator adopts 2.4G wireless communication technique and the miniature temperature measuring equipment of intermediate joint of electric cable to carry out communication.
2. data concentrator according to claim 1, it is characterized in that described 2.4G wireless communication technique is selected a kind of in the 2.4G radio transmitting and receiving chip of the 2.4G radio transmitting and receiving chip of 2.4G radio transmitting and receiving chip, 2-FSK modulation technique of FSK/GFSK modulation technique or DSSS/FSK/MSK/ASK/OOK MSK modulation technique.
3. data concentrator according to claim 1 is characterized in that, described data concentrator inside is provided with the 2.4G communication module.
4. data concentrator according to claim 3 is characterized in that, described 2.4G communication module adopts front-end chip or the separate type LNA low-noise amplifier of built-in LNA low-noise amplifier.
5. data concentrator according to claim 1 is characterized in that, the quantitative range of described other a plurality of power cables is 1-125.
6. data concentrator according to claim 1 is characterized in that, described public wireless network is selected a kind of among GSM, GPRS, TD-SCDMA, WCDMA, CDMA2000, CDMA EVDO, WiFi, TD-LTE, FDD-LTE or the WiMax.
7. data concentrator according to claim 1 is characterized in that, described data concentrator adopts three-phase imbalance electric current CT automatic electricity getting device.
8. data concentrator according to claim 1 is characterized in that, described data concentrator is that closing structure is set on one of them power cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400820 CN202788814U (en) | 2012-08-14 | 2012-08-14 | Power cable intermediate joint online-monitoring data concentrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400820 CN202788814U (en) | 2012-08-14 | 2012-08-14 | Power cable intermediate joint online-monitoring data concentrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202788814U true CN202788814U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220400820 Expired - Fee Related CN202788814U (en) | 2012-08-14 | 2012-08-14 | Power cable intermediate joint online-monitoring data concentrator |
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| Country | Link |
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| CN (1) | CN202788814U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839970A (en) * | 2012-08-14 | 2012-12-26 | 苏州左海电气有限公司 | On-line monitoring data concentrator of power cable intermediate joint |
-
2012
- 2012-08-14 CN CN 201220400820 patent/CN202788814U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839970A (en) * | 2012-08-14 | 2012-12-26 | 苏州左海电气有限公司 | On-line monitoring data concentrator of power cable intermediate joint |
| CN102839970B (en) * | 2012-08-14 | 2016-03-23 | 苏州左海电气有限公司 | A kind of intermediate joint of electric cable online monitoring data concentrator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140814 |
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| EXPY | Termination of patent right or utility model |