CN110324196B - Cable operation monitoring system - Google Patents
Cable operation monitoring system Download PDFInfo
- Publication number
- CN110324196B CN110324196B CN201810286101.8A CN201810286101A CN110324196B CN 110324196 B CN110324196 B CN 110324196B CN 201810286101 A CN201810286101 A CN 201810286101A CN 110324196 B CN110324196 B CN 110324196B
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- impedance
- cable
- signal
- operation monitoring
- system controller
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 65
- 230000008859 change Effects 0.000 claims abstract description 41
- 238000012360 testing method Methods 0.000 claims abstract description 37
- 238000012806 monitoring device Methods 0.000 claims abstract description 18
- 238000004458 analytical method Methods 0.000 claims abstract description 10
- 238000010295 mobile communication Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002847 impedance measurement Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0791—Fault location on the transmission path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
A cable operation monitoring system comprises a cable and a cable operation monitoring device, wherein a plurality of transmission wires and at least one impedance test wire are arranged in the cable, one end of the cable is connected to the cable operation monitoring device, in the process of transmitting/receiving signals through the transmission wires, the cable operation monitoring device generates an impedance signal and transmits the impedance signal into the impedance test wire of the cable, when impedance change occurs in a transmission path of the impedance test wire, a part of the impedance signal continues to transmit to the transmission path of the impedance test wire, the other part of the impedance signal is reflected to an input connection end, the voltage amplitude of a reflected wave is measured by a system controller to analyze impedance change data, and the position data of the impedance change point in the transmission path is analyzed according to the time value from the reflection point to the emission point of the reflected wave, wherein the analyzed impedance change data and the analyzed position data can be output on an analysis result device, or the analyzed data can be transmitted through a wireless mode.
Description
Technical Field
The present invention relates to a cable operation monitoring system, and more particularly, to a cable operation monitoring system capable of monitoring an impedance state in a cable in a state where a cable operation transmits a message.
Background
Cables (e.g., waveguides, coaxial cables, and twisted pair) are the most widely used components for modern wireless and data communications, satellite communications, and radar, as well as the primary cause of such system failures. It is important to test the cable, and a typical cable test procedure will first determine whether the cable is faulty or whether the characteristics of the cable are out of specification. If a cable fault is identified, then the location of the entity of the fault must be determined. Once the positioning is complete, the next step is to know what kind of fault was encountered and to repair it.
The cable fault can be determined by characteristic impedance, and the time domain reflectometer (Time Domain Reflectometry, TDR) is used to measure the reflected signal from the cable. The reflection may be a near-end reflection, a mid-distance reflection, or a far-end reflection caused by an impedance discontinuity such as an open circuit or a short circuit at a respective distance from the CT to the far-end terminal or cable terminal.
However, since the cable is tested before leaving the factory, if the cable is used for transmitting signals, the internal impedance will be dynamically changed, so that the impedance change measured by the TDR cannot be determined whether the cable is damaged due to transmission or the wire of the cable itself, and thus the conventional technology for measuring whether the cable is faulty by using the TDR related instrument is defective, and if so, the technology can be improved, and the method can determine whether the wiring of the cable is the cause of the fault in the transmission process.
Therefore, if at least one impedance test line can be disposed inside the cable, and therefore, when the transmission wire inside the cable is used for transmitting signals, the impedance test line is not used for transmitting signals, so that an impedance signal can be transmitted to the impedance test line, and the impedance signal reflected inside the impedance test line is used for analyzing impedance change, and impedance change data can be obtained while the transmission wire is transmitting signals, so that whether the cable has faults or not can be judged, and the invention is an optimal solution.
Disclosure of Invention
A cable operation monitoring system comprises a cable, wherein a plurality of transmission wires and at least one impedance test wire are arranged in the cable, one end of the cable is provided with a connector, and the transmission wires and the impedance test wires can extend into the connector; a cable operation monitoring device connected with the cable, wherein the cable operation monitoring device comprises at least one input connecting end, and a connector of the cable is connected to the input connecting end; at least one output connection; at least one monitoring result output connection end; the system controller is used for controlling the operation of the cable operation monitoring device, and can measure the voltage amplitude of a reflected wave by an impedance signal reflected in an impedance test line of the cable so as to analyze impedance change data; the first cable signal receiving/transmitting device is electrically connected with the input connecting end and the system controller and is used for receiving a transmission signal input by a transmission wire of the cable and transmitting the transmission signal to the system controller or receiving a transmission signal passing through the system controller and transmitting the transmission signal to the transmission wire of the cable; the second cable signal receiving/transmitting device is electrically connected with the output connecting end and the system controller and is used for receiving the transmission signal input by the output connecting end and transmitting the transmission signal to the system controller or receiving the transmission signal passing through the system controller and transmitting the transmission signal to the output connecting end; the impedance signal generator is electrically connected with the system controller and is used for generating an impedance signal when the system controller receives a transmission signal; an impedance signal transmitter electrically connected with the impedance signal generator and the input connection end, for transmitting the impedance signal generated by the impedance signal generator into the impedance test line of the cable through the input connection end, wherein when the impedance change occurs in the transmission path of the impedance test line, a part of the impedance signal is reflected to the input connection end, and another part of the impedance signal is continuously transmitted to the transmission path of the impedance test line; the impedance signal receiver is electrically connected with the input connecting end and is used for receiving an impedance signal input by an impedance test wire of the cable and transmitting the impedance signal to the system controller; and an operation result output device electrically connected with the system controller and the monitoring result output connection end and used for transmitting the impedance change data and the position data of the impedance change point from the monitoring result output connection end through the monitoring result output connection end.
More specifically, the output connection terminal is connected to a first load device.
More specifically, the monitoring result output connection end is connected with an analysis result device, and the analysis result device is used for receiving the impedance change data and the position data of the impedance change point.
More specifically, the analysis result device further has a display screen, and the display screen can display the impedance change data and the position data of the impedance change point.
More specifically, the cable operation monitoring device further includes a wireless transmitter electrically connected to the operation result output device, for transmitting the impedance change data and the position data of the impedance change point in a wireless mode.
More specifically, the wireless mode is Bluetooth or Wi-Fi, infrared or mobile communication network.
More specifically, a connector is provided at the other end of the cable, and the connector is connected to a second load device.
Drawings
FIG. 1 is a schematic diagram of a cable operation monitoring system according to the present invention.
FIG. 2 is a schematic diagram of a cable operation monitoring system according to the present invention.
FIG. 3 is a schematic diagram of a cable operation monitoring system according to the present invention.
Reference numerals illustrate:
1. cable wire
11. Transmission wire
12. Impedance test line
13. Connector head
14. Concave folding part
15. Concave folding part
16. Connector head
2. Cable operation monitoring device
201. Input connection terminal
202. Output connection terminal
203. Monitoring result output connection end
204. System controller
205. First cable signal receiver/transmitter
206. Second cable signal receiver/transmitter
207. Impedance signal generator
208. Impedance signal transmitter
209. Impedance signal receiver
210. Calculation result output device
211. Wireless transmitter
3. First load device
4. Analysis result device
41. Display screen
5. And a second load device.
Detailed Description
Other technical content, features and technical effects of the present invention will be apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings.
Referring to fig. 1 and 2, a connection schematic diagram and an architecture schematic diagram of a cable operation monitoring system according to the present invention are shown, wherein the cable operation monitoring system includes a cable 1 and a cable operation monitoring device 2, the cable 1 has a plurality of transmission wires 11 and at least one impedance testing wire 12 therein, two ends of the cable 1 are respectively provided with a connector 13 and 16, and the transmission wires 11 and the impedance testing wires 12 can extend into the connectors 13 and 16, wherein one connector 16 can be connected with a second load device 5.
The cable operation monitoring device 2 is connected to the cable 1, and the cable operation monitoring device 2 includes at least one input connection 201, at least one output connection 202, at least one monitoring result output connection 203, a system controller 204, a first cable signal receiver/transmitter 205, a second cable signal receiver/transmitter 206, an impedance signal generator 207, an impedance signal transmitter 208, an impedance signal receiver 209, an operation result output 210 and a wireless transmitter 211, wherein the connector 13 of the cable 1 is connected to the input connection 201.
The system controller 204 is used for controlling the operation of the cable operation monitoring device 2, and the system controller 204 can measure the voltage amplitude of a reflected wave from an impedance signal reflected in the impedance test line 12 of the cable 1 to analyze an impedance change data, and can also analyze the position data of the impedance change point in the transmission path according to the time value from the reflection point to the emission point of the reflected wave.
The first cable signal receiver/transmitter 205 is configured to receive a transmission signal input by the transmission wire 11 of the cable 1 and transmit the signal to the system controller 204, or receive a transmission signal passing through the system controller 204 and transmit the signal to the transmission wire 11 of the cable 1; the second cable signal receiver/transmitter 206 is configured to receive the transmission signal input from the output connection terminal 202 and transmit the transmission signal to the system controller 204, or receive the transmission signal through the system controller 204 and transmit the transmission signal to the output connection terminal 202;
therefore, after the second load device 5 inputs the transmission signal through the transmission wire 11 of the cable 1, the transmission signal can enter the first cable signal receiving/transmitting device 205 through the input connection terminal 201, and the first cable signal receiving/transmitting device 205 can input the transmission signal to the system controller 204, and the system controller 204 outputs the transmission signal to the output connection terminal 202 through the second cable signal receiving/transmitting device 206 and then to the first load device 3, otherwise, the first load device 3 can also reversely transmit the transmission signal to the cable operation monitoring device 2 along the same transmission path, and then output the transmission signal to the second load device 5 through the input connection terminal 201 of the cable operation monitoring device 2, so that the first load device 3 and the second load device 5 can mutually perform data transmission.
The impedance signal generator 207 can generate an impedance signal when the system controller 204 receives a transmission signal, and the impedance signal generated by the impedance signal generator 207 can be transmitted into the impedance test line 12 of the cable 1 through the input connection end 201 by the impedance signal transmitter 208, and when the impedance change occurs in the transmission path of the impedance test line 12, a part of the impedance signal is reflected to the input connection end 201, and another part of the impedance signal is continuously transmitted to the transmission path of the impedance test line 12;
the impedance signal reflected to the input connection terminal 201 is received by the impedance signal receiver 209 and then output to the system controller 204, and after the system controller 204 calculates the impedance change data and the position data of the impedance change point, the impedance signal is transmitted to the analysis result device 4 with the display screen 41 from the monitoring result output connection terminal 203 through the calculation result output device 210, and the wireless transmitter 211 can also directly transmit the impedance change data and the position data of the impedance change point to the analysis result device 4 in a wireless mode (bluetooth or Wi-Fi).
Therefore, as shown in fig. 3, when the cable 1 is constructed or routed to generate two concave portions 14 and 15, the display screen 41 of the analysis result device 4 displays impedance change data, and the two peaks of the waveform on the display screen 41 can be determined to represent the impedance change caused by the concave portions 14 and 15 of the impedance test line 12, and the same impedance change can be determined to be generated by the transmission line 11 at the same position, so that the concave portions 14 and 15 can be processed to eliminate the generated impedance change.
The cable operation monitoring system provided by the invention has the following advantages when compared with other prior art:
(1) The invention can set at least one impedance test line in the cable, therefore, when the transmission wire in the cable is used for transmitting signals, the impedance test line is not used for transmitting signals, but the impedance test line is transmitted with an impedance signal, and the impedance signal reflected in the impedance test line is used for analyzing impedance change.
(2) The impedance test line for impedance measurement is only used for measurement, so that erroneous judgment caused by common transmission signals is avoided, and therefore, the invention can acquire impedance change data while the transmission wire transmits signals, and further can judge whether a cable has faults or not.
The present invention has been disclosed in the foregoing embodiments, but it is not limited thereto, and those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (7)
1. A cable operation monitoring system, comprising:
a cable, which is internally provided with a plurality of transmission wires and at least one impedance test wire, when the transmission wires transmit signals, the impedance test wire does not transmit signals, one end of the cable is provided with a connector, and the transmission wires and the impedance test wire extend into the connector;
a cable operation monitoring device connected to the cable, the cable operation monitoring device comprising:
at least one input connection end, wherein the connector of the cable is connected to the input connection end;
at least one output connection;
at least one monitoring result output connection end;
the system controller is used for controlling the operation of the cable operation monitoring device, and is used for measuring the voltage amplitude of the reflected wave corresponding to the reflected impedance signal in the impedance test line of the cable so as to analyze impedance change data, and in addition, the system controller is also used for analyzing the position data of the impedance change point in the transmission path according to the time value from the reflection point to the emission point of the reflected wave;
a first cable signal receiving/transmitting device, electrically connected to the input connection end and the system controller, for receiving the transmission signal inputted by the transmission wire of the cable and transmitting to the system controller, or receiving the transmission signal passing through the system controller and transmitting to the transmission wire of the cable;
a second cable signal receiving/transmitting device, electrically connected to the output connection terminal and the system controller, for receiving the transmission signal inputted by the output connection terminal and transmitting to the system controller, or receiving the transmission signal passing through the system controller and transmitting to the output connection terminal;
the impedance signal generator is electrically connected with the system controller, and generates an impedance signal when the system controller receives the transmission signal;
an impedance signal transmitter electrically connected with the impedance signal generator and the input connection end, for transmitting the impedance signal generated by the impedance signal generator to the input connection end to enter the impedance test line of the cable, when the impedance change occurs in the transmission path of the impedance test line, a part of the impedance signal is reflected to the input connection end, and another part of the impedance signal is continuously transmitted to the transmission path of the impedance test line;
an impedance signal receiver electrically connected with the input connection end for receiving an impedance signal input by an impedance test line of the cable and transmitting the impedance signal to the system controller; and
and the operation result output device is electrically connected with the system controller and the monitoring result output connecting end and transmits the impedance change data and the position data of the impedance change point through the monitoring result output connecting end.
2. The cable operation monitoring system of claim 1, wherein the output connection is connected to a first load device.
3. The cable operation monitoring system of claim 1, wherein the monitoring result output connection is connected with an analysis result device for receiving the impedance change data and the position data of the impedance change point.
4. The cable operation monitoring system of claim 3, wherein the analysis result device further comprises a display screen, and the impedance change data and the position data of the impedance change point are displayed on the display screen.
5. The cable operation monitoring system of claim 1, wherein the cable operation monitoring device further comprises a wireless transmitter electrically connected to the operation result output device for transmitting the impedance change data and the position data of the impedance change point in a wireless mode.
6. The cable operation monitoring system of claim 5, wherein the wireless mode is bluetooth, wi-Fi, infrared or mobile communication network.
7. The cable operation monitoring system of claim 1, wherein a connector is provided at the other end of the cable, the connector being connected to a second load device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286101.8A CN110324196B (en) | 2018-03-30 | 2018-03-30 | Cable operation monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286101.8A CN110324196B (en) | 2018-03-30 | 2018-03-30 | Cable operation monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN110324196A CN110324196A (en) | 2019-10-11 |
| CN110324196B true CN110324196B (en) | 2024-03-19 |
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| CN201810286101.8A Active CN110324196B (en) | 2018-03-30 | 2018-03-30 | Cable operation monitoring system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004005947A1 (en) * | 2002-07-09 | 2004-01-15 | Jin-Bae Park | Time-frequency domain reflectometry apparatus and method |
| CN101068118A (en) * | 2007-06-27 | 2007-11-07 | 中兴通讯股份有限公司 | Method and system for measuring cable interference, length and line attenuation |
| CN101127928A (en) * | 2007-09-11 | 2008-02-20 | 电子科技大学 | Method and device for testing network cable failure |
| CN208028916U (en) * | 2018-03-30 | 2018-10-30 | 东莞昕钰电子通讯有限公司 | Cable operates monitoring system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002095945A2 (en) * | 2001-05-21 | 2002-11-28 | Vasily Grigorievich Atyunin | Method and apparatus for impedance matching in a transmission |
| GB0114273D0 (en) * | 2001-06-12 | 2001-08-01 | Phoenix Aviat And Technology L | Fault detection system and method |
-
2018
- 2018-03-30 CN CN201810286101.8A patent/CN110324196B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004005947A1 (en) * | 2002-07-09 | 2004-01-15 | Jin-Bae Park | Time-frequency domain reflectometry apparatus and method |
| CN101068118A (en) * | 2007-06-27 | 2007-11-07 | 中兴通讯股份有限公司 | Method and system for measuring cable interference, length and line attenuation |
| CN101127928A (en) * | 2007-09-11 | 2008-02-20 | 电子科技大学 | Method and device for testing network cable failure |
| CN208028916U (en) * | 2018-03-30 | 2018-10-30 | 东莞昕钰电子通讯有限公司 | Cable operates monitoring system |
Non-Patent Citations (1)
| Title |
|---|
| 同轴电缆特性阻抗测试方法及应用研究;周军霞;;机电工程技术(第06期);第35-38页 * |
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| CN110324196A (en) | 2019-10-11 |
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