CN203443687U - Cable temperature on-line monitoring system based on shielding layer carrier wave communication - Google Patents
Cable temperature on-line monitoring system based on shielding layer carrier wave communication Download PDFInfo
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- CN203443687U CN203443687U CN201320530592.9U CN201320530592U CN203443687U CN 203443687 U CN203443687 U CN 203443687U CN 201320530592 U CN201320530592 U CN 201320530592U CN 203443687 U CN203443687 U CN 203443687U
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Abstract
The utility model relates to a cable temperature on-line monitoring system based on shielding layer carrier wave communication. The system is characterized by comprising a cable, an acquisition end and a monitoring end. The acquisition end communicates with the monitoring end through the shielding layer of the cable; the acquisition end comprises a lower computer; the lower computer is connected with a temperature sensor, a display module and a carrier wave module A; the carrier wave module A is connected with an inductance coupler A through a high-frequency cable A; the inductance coupler A is connected with the shielding layer of the cable; the monitoring end comprises an upper computer; the upper computer is connected with a carrier wave module B through a serial port module; the carrier wave module B is connected with an inductance coupler B through a high-frequency cable B; and the inductance coupler B is connected with the shielding layer of the cable. By using the monitoring system provided by the utility model, the communication line construction cost can be saved, and the difficulties are overcome that it is not convenient to transmit signals and establish a monitoring system in a complex environment.
Description
Technical field
The utility model relates to a kind of cable temperature on-line monitoring system based on screen layer carrier communication.
Background technology
Current, the XLPE power cable of underground laying occupies important proportion in the transmission and distribution networks of city.In the use procedure of XLPE power cable, terminals are weak links of its safe operation.Due to the impact of the not enough and on-the-spot complicated running environment of design, manufacture craft, after long-play, will be because the reasons such as overheated, oxidation, corrosion will make splice insulation layer aged deterioration gradually in joint, thus cause joint fault.In addition, cable body, under long-time heavy load current work condition, also will decline insulation because cable insulation is aging gradually, finally cause cable body fault.
By cable temperature is carried out to on-line monitoring, can prevent accident, reduce loss.Have at present and utilize GSM(global system for mobile communications) city power cable connector on-line temperature monitoring and the analytic system of short message way transmission data, and by GIS(Geographic Information System) electronic chart is applied to monitoring analysis software.Also has the on-line temperature monitoring scheme based on magnetic field induction and radio communication, developed a kind of embedded electronic temperature measuring equipment that can continue to monitor cable accessory temperature variation, this device can carry out data transmit-receive by wireless communication devices according to custom-designed communication protocol.The distributed fiber grating thermometry of the third on-line monitoring cable temperature, this technology response time is short, temperature measurement error is little, reliable and can realize long range measurements.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of cable temperature on-line monitoring system based on screen layer carrier communication.
The utility model adopts following scheme to realize: a kind of cable temperature on-line monitoring system based on screen layer carrier communication, it is characterized in that: comprise a cable, a collection terminal and a monitoring client, described collection terminal and described monitoring client carry out communication by the screen layer of described cable; Wherein,
Described collection terminal comprises a slave computer, described slave computer connects a temperature sensor, a display module and a carrier module A, described carrier module A connects an inductive coupler A by a high frequency cable A, described inductive coupler A connects the screen layer of described cable, wherein, described temperature sensor is arranged on cable terminal to gather cable temperature;
Described monitoring client comprises a host computer, and described host computer connects a carrier module B by a serial port module, and described carrier module B connects an inductive coupler B by a high frequency cable B, and described inductive coupler B connects the screen layer of described cable.
In the utility model one embodiment, described temperature sensor model is DS18B20.
In the utility model one embodiment, described slave computer is single-chip microcomputer PIC16F877A.
In the utility model one embodiment, described display module is 1602 LCDs.
In the utility model one embodiment, described carrier module A and carrier module B are BWP09 power carrier module.
In the utility model one embodiment, described inductive coupler A and inductive coupler B are SL-Y2 type injection inductive coupler.
In the utility model one embodiment, described serial port module also comprises employing MAX232CPE chip manufacturing one level shifting circuit.
In the utility model one embodiment, described monitoring client also comprises that a memory module connects described host computer.
In the utility model one embodiment, described host computer is a PC.
The utility model utilizes XLPE power cable metal screen layer as carrier communication channel, there is multiple advantage, avoided the impact of high voltage and the large electric current of power line channel, noise level is low, Coupling device is simple in structure, be easy to installation and maintenance, carrier signal radiation is low with the impact of communicating by letter on radio broadcasting, there is wide application space, through experimental verification, this system schema is reliable, effective, there is application and popularization value, and can save communication line construction cost, overcome inconvenient signal transmission and the difficulty of setting up monitoring system under complex environment; Native system can also expand to on-line monitoring is carried out in multi-cable, a plurality of monitoring point, after the next pusher side gathers a plurality of temperature signals, by screen layer carrier communication, transmit signals to remote monitoring center again, at upper pusher side, also can increase database memory module, to cable temperature data are carried out to horizontal and vertical historical data comparison, thereby grasp cable insulation state, for prevention cable fault provides early warning data comprehensively; Although native system only carries out data transmission and demonstration for cable temperature, but can expand as required, only need to different types of data, focus at the next pusher side, by serial communication, send to power carrier module again, just can realize multi-signal transmission and monitoring, thereby set up the power cable state on-line monitoring system based on screen layer carrier communication.
For making the purpose of this utility model, technical scheme and advantage clearer, below will, by specific embodiment and relevant drawings, the utility model be described in further detail.
Accompanying drawing explanation
Fig. 1 is the utility model system principle diagram.
Embodiment
As shown in Figure 1, the utility model provides a kind of cable temperature on-line monitoring system based on screen layer carrier communication, comprise a cable, a collection terminal and a monitoring client, described collection terminal and described monitoring client carry out communication by (cable) screen layer of described cable; Wherein,
Described collection terminal comprises a slave computer, described slave computer connects a temperature sensor, a display module and a carrier module A, described carrier module A connects an inductive coupler A by a high frequency cable A, described inductive coupler A connects the screen layer of described cable, wherein, described temperature sensor is arranged on cable terminal to gather cable temperature;
Described monitoring client comprises a host computer, and described host computer connects a carrier module B by a serial port module, and described carrier module B connects an inductive coupler B by a high frequency cable B, and described inductive coupler B connects the screen layer of described cable.Described monitoring client is arranged in Control Room, and described collection terminal and monitoring client are arranged at the both sides of cable, by cable shield, carries out communication, has both realized remote monitoring, has saved again cost.
Preferably, described temperature sensor model can be DS18B20; Described slave computer can be single-chip microcomputer PIC16F877A; Described display module can be 1602 LCDs; Described carrier module A and carrier module B can be BWP09 power carrier modules, this module is with low cost, stable performance, carrier frequency is 60kHz (customizable), carrier wave speed is 300bps, serial ports speed is that 9600bps(is customizable), interface mode is Transistor-Transistor Logic level serial line interface, and modulation system is FSK and DSSS; Described inductive coupler A and inductive coupler B can be SL-Y2 type injection inductive couplers; Described serial port module also comprises employing MAX232CPE chip manufacturing one level shifting circuit; Described monitoring client also comprises that a memory module connects described host computer, to cable temperature data are carried out to horizontal and vertical historical data comparison, thereby grasps cable insulation state comprehensively, for prevention cable fault provides early warning data; Described host computer is a PC, is equipped with the host computer of USB interface for there is no serial ports, can utilize serial ports to turn usb data line and realize data transmission.In addition, high frequency cable is divided into balanced cable and uneven cable, and its impedance is generally 150 Ω (balance) and 75 Ω (imbalance).Requirement to high frequency cable is: on the one hand, should be as far as possible little for decay and the loss of signal transmission, on the other hand, should make its input impedance mate as far as possible with the loaded impedance at its two ends.
Above-listed preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; institute is understood that; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. the cable temperature on-line monitoring system based on screen layer carrier communication, is characterized in that: comprise a cable, a collection terminal and a monitoring client, described collection terminal and described monitoring client carry out communication by the screen layer of described cable; Wherein,
Described collection terminal comprises a slave computer, described slave computer connects a temperature sensor, a display module and a carrier module A, described carrier module A connects an inductive coupler A by a high frequency cable A, described inductive coupler A connects the screen layer of described cable, wherein, described temperature sensor is arranged on cable terminal to gather cable temperature;
Described monitoring client comprises a host computer, and described host computer connects a carrier module B by a serial port module, and described carrier module B connects an inductive coupler B by a high frequency cable B, and described inductive coupler B connects the screen layer of described cable.
2. the cable temperature on-line monitoring system based on screen layer carrier communication according to claim 1, is characterized in that: described temperature sensor model is DS18B20.
3. the cable temperature on-line monitoring system based on screen layer carrier communication according to claim 1, is characterized in that: described slave computer is single-chip microcomputer PIC16F877A.
4. the cable temperature on-line monitoring system based on screen layer carrier communication according to claim 1, is characterized in that: described display module is 1602 LCDs.
5. the cable temperature on-line monitoring system based on screen layer carrier communication according to claim 1, is characterized in that: described carrier module A and carrier module B are BWP09 power carrier module.
6. the cable temperature on-line monitoring system based on screen layer carrier communication according to claim 1, is characterized in that: described inductive coupler A and inductive coupler B are SL-Y2 type injection inductive coupler.
7. the cable temperature on-line monitoring system based on screen layer carrier communication according to claim 1, is characterized in that: described serial port module also comprises employing MAX232CPE chip manufacturing one level shifting circuit.
8. the cable temperature on-line monitoring system based on screen layer carrier communication according to claim 1, is characterized in that: described monitoring client also comprises that a memory module connects described host computer.
9. the cable temperature on-line monitoring system based on screen layer carrier communication according to claim 1, is characterized in that: described host computer is a PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320530592.9U CN203443687U (en) | 2013-08-29 | 2013-08-29 | Cable temperature on-line monitoring system based on shielding layer carrier wave communication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320530592.9U CN203443687U (en) | 2013-08-29 | 2013-08-29 | Cable temperature on-line monitoring system based on shielding layer carrier wave communication |
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| CN203443687U true CN203443687U (en) | 2014-02-19 |
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| CN201320530592.9U Expired - Fee Related CN203443687U (en) | 2013-08-29 | 2013-08-29 | Cable temperature on-line monitoring system based on shielding layer carrier wave communication |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459151A (en) * | 2018-12-06 | 2019-03-12 | 南京信息工程大学 | A kind of low temperature background is plunged into the commercial sea amount temperature point on-Line Monitor Device and method |
| CN112260412A (en) * | 2020-09-27 | 2021-01-22 | 合肥新线通信科技有限公司 | Communication circuit, power supply circuit, communication and power supply circuit based on multiple shielding layers |
| CN112449677A (en) * | 2018-11-20 | 2021-03-05 | Abb瑞士股份有限公司 | Device for monitoring the temperature and voltage of a cable joint of a cable connected to a gas-insulated switchgear and associated manufacturing method |
-
2013
- 2013-08-29 CN CN201320530592.9U patent/CN203443687U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112449677A (en) * | 2018-11-20 | 2021-03-05 | Abb瑞士股份有限公司 | Device for monitoring the temperature and voltage of a cable joint of a cable connected to a gas-insulated switchgear and associated manufacturing method |
| CN109459151A (en) * | 2018-12-06 | 2019-03-12 | 南京信息工程大学 | A kind of low temperature background is plunged into the commercial sea amount temperature point on-Line Monitor Device and method |
| CN109459151B (en) * | 2018-12-06 | 2024-02-20 | 南京信息工程大学 | Device and method for monitoring mass temperature points on line under low-temperature background |
| CN112260412A (en) * | 2020-09-27 | 2021-01-22 | 合肥新线通信科技有限公司 | Communication circuit, power supply circuit, communication and power supply circuit based on multiple shielding layers |
| CN112260412B (en) * | 2020-09-27 | 2022-12-27 | 合肥新线通信科技有限公司 | Communication circuit, power supply circuit, communication and power supply circuit based on multiple shielding layers |
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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: 20140219 Termination date: 20160829 |
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| CF01 | Termination of patent right due to non-payment of annual fee |