CN107229002B - Electric wire breakpoint detection device - Google Patents
Electric wire breakpoint detection device Download PDFInfo
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- CN107229002B CN107229002B CN201710493610.3A CN201710493610A CN107229002B CN 107229002 B CN107229002 B CN 107229002B CN 201710493610 A CN201710493610 A CN 201710493610A CN 107229002 B CN107229002 B CN 107229002B
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- generation module
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
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- General Physics & Mathematics (AREA)
- Details Of Aerials (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention provides a wire breakpoint detection device, which comprises a base body; the base body comprises a radio generation module and a power supply module thereof; the transmitting end of the radio generation module is electrically coupled to the wiring clamp at the outer end of the base body; the power supply module is a constant power module and inputs constant power to the radio generation module when in work; the radio generation module is provided with an automatic frequency modulation module which can modulate the frequency of a transmitting signal back and forth in a set wave band; the radio generation module is also coupled with a transmission power detection module, and the transmission power detection module is sequentially connected with the operation module and the display screen in series; the operation module calculates the length of the antenna according to the signal frequency corresponding to the maximum transmitting power of the radio generation module and outputs the length value of the antenna to the display screen; the display screen is arranged on the surface of the base body. The detection device can quickly and conveniently judge the approximate position of the electric wire breakpoint.
Description
Technical Field
The invention relates to the field of electrician tools, in particular to a wire breakpoint detection device.
Background
At present, for the detection of the wire breakpoint, a hunting instrument is usually adopted for detection, and the hunting instrument comprises a signal generator which can generate a sound signal and a detector which detects the sound signal; the signal generator forms a sound field on the wire to be detected, the detector moves along the wire, and when the sudden change of the sound field is detected, the position of a breakpoint can be roughly judged. However, due to the presence of the wire insulation layer, the sound field outside the wire is extremely weak, which requires extremely high sensitivity for the detector, making the equipment costly; in addition, since the detector needs to be moved along the wire, in many cases, due to the position of the wire, such as the wire being disposed at a high place or a dead angle; making the process extremely difficult or even impossible to implement.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a wire break point detecting device, which can quickly and conveniently determine the approximate position of a wire break point.
The technical scheme adopted by the invention for solving the technical problems is as follows: the electric wire breakpoint detection device comprises a base body; the base body comprises a radio generation module and a power supply module thereof; the transmitting end of the radio generation module is electrically coupled to the wiring clamp at the outer end of the base body; the power supply module is a constant power module and inputs constant power to the radio generation module when in work; the radio generation module is provided with an automatic frequency modulation module which can modulate the frequency of a transmitting signal back and forth in a set wave band; the radio generation module is also coupled with a transmission power detection module, and the transmission power detection module is sequentially connected with the operation module and the display screen in series; the operation module calculates the length of the antenna according to the signal frequency corresponding to the maximum transmitting power of the radio generation module and outputs the length value of the antenna to the display screen; the display screen is arranged on the surface of the base body.
Preferably, the power supply module comprises a rechargeable battery and a constant power control module.
Preferably, the operation module calculates the antenna length as follows: and if the signal frequency corresponding to the maximum transmitting power of the radio generation module is f and the light speed is c, the antenna length is N x c/4f, namely the antenna length is an integral multiple of a quarter wavelength.
The working principle of the invention is that when the radio generation module has constant power input, the antenna length is integral multiple of quarter wavelength, the maximum output efficiency is achieved, namely the maximum transmitting power is achieved; therefore, the length of the broken wire coupled with the transmitting end of the radio generation module through the jointing clamp is determined, namely the length of the antenna is determined and is marked as L, in the frequency modulation process of the automatic frequency modulation module, when the maximum transmitting power occurs, the length can be determined, and at the moment, N c/4f is L (N is a natural number), so that the broken point of the wire can be obtained only by looking at the position on the wire, which is away from the integral multiple of the quarter wavelength of the jointing clamp.
The invention has the beneficial effects that: the electric wire breakpoint detection device can automatically detect the approximate position of the electric wire breakpoint only by clamping the end part of the electric wire, and does not need to use a corresponding detector to move along the electric wire to detect section by section, so that the detection difficulty is greatly reduced.
Drawings
Fig. 1 is a schematic view of an embodiment of the present wire disconnection point detecting apparatus.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
in the first embodiment shown in fig. 1, the wire disconnection point detection device comprises a base body 1; the base body 1 comprises a radio generation module 2 and a power supply module 3 thereof; the transmitting end of the radio generation module 2 is electrically coupled to a jointing clamp 4 at the outer end of the base body; the power supply module 3 is a constant power module, comprises a rechargeable battery and a constant power control module, and inputs constant power to the radio generation module 2 when in work; the radio generation module 2 is provided with an automatic frequency modulation module which can modulate the frequency of a transmitting signal back and forth in a set wave band; the radio generation module 2 is also coupled with a transmission power detection module 5, and the transmission power detection module 5 is sequentially connected with an operation module 6 and a display screen 7 in series; the operation module 6 calculates the length of the antenna according to the signal frequency corresponding to the maximum transmitting power of the radio generation module 2, and outputs the length value of the antenna to the display screen 7; the display screen 7 is arranged on the surface of the base body 1.
In the above device for detecting a wire break point, the operation module 6 calculates the length of the antenna as follows: if the signal frequency corresponding to the maximum transmission power of the radio generation module 2 is f and the speed of light is c, the antenna length is N × c/4f, that is, the antenna length is an integral multiple of a quarter wavelength.
The length of the antenna output to the display screen 7 by the operation module 6 can be only 1 time of a quarter wavelength; or may be several values within 1-10 times the quarter wavelength.
For the above-mentioned wire breakpoint detection device, when the radio generation module 2 has a constant power input, the antenna length is an integral multiple of a quarter wavelength, such as a quarter or a half of the wavelength, and has the maximum output efficiency, that is, the maximum transmission power occurs; therefore, since the length of the broken line coupled with the transmitting end of the radio generation module 2 through the jointing clamp is determined, that is, the length of the antenna is determined and is marked as L, in the frequency modulation process of the automatic frequency modulation module, when the maximum transmitting power occurs, the length can be determined, at this time, N × c/4f is L (N is a natural number), and therefore, the broken point of the electric wire can be obtained only by looking at the position on the electric wire, which is away from the integral multiple of the quarter wavelength of the jointing clamp.
It is worth noting that since the length of the quarter-wave is actually long, such as the wavelength of the microwave band of a radio is 1m-10m, the quarter-wave has a length of 0.25m-2.5m, so that, in general, the break point position of most wires can be basically found by looking at the lower quarter-wave position and the half-wave position.
The electric wire breakpoint detection device can automatically detect the approximate position of the electric wire breakpoint only by clamping the end part of the electric wire, and does not need to use a corresponding detector to move along the electric wire to detect section by section, so that the detection difficulty is greatly reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the subject matter of the invention is intended to cover all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.
Claims (3)
1. An electric wire breakpoint detection device comprises a base body (1); the method is characterized in that: the base body (1) comprises a radio generation module (2) and a power supply module (3) thereof; the transmitting end of the radio generation module (2) is electrically coupled to a jointing clamp (4) at the outer end of the base body; the power supply module (3) is a constant power module, and constant power is input into the radio generation module (2) during work; the radio generation module (2) is provided with an automatic frequency modulation module which can modulate the frequency of a transmitting signal back and forth in a set wave band; the radio generation module (2) is also coupled with a transmission power detection module (5), and the transmission power detection module (5) is sequentially connected with the operation module (6) and the display screen (7) in series; the operation module (6) calculates the length of the antenna according to the signal frequency corresponding to the maximum transmitting power of the radio generation module (2), and outputs the length value of the antenna to the display screen (7); the display screen (7) is arranged on the surface of the base body.
2. The electric wire breakpoint detection device according to claim 1, characterized in that: the power supply module (3) comprises a rechargeable battery and a constant power control module.
3. The electric wire breakpoint detection device according to claim 1, characterized in that: the operation module (6) calculates the antenna length as follows: and if the signal frequency corresponding to the maximum transmitting power of the radio generation module (2) is f and the light speed is c, the antenna length is N x c/4f, and N is an integer in 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710493610.3A CN107229002B (en) | 2017-06-26 | 2017-06-26 | Electric wire breakpoint detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710493610.3A CN107229002B (en) | 2017-06-26 | 2017-06-26 | Electric wire breakpoint detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107229002A CN107229002A (en) | 2017-10-03 |
| CN107229002B true CN107229002B (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710493610.3A Active CN107229002B (en) | 2017-06-26 | 2017-06-26 | Electric wire breakpoint detection device |
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| Country | Link |
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| CN (1) | CN107229002B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342869A (en) * | 2018-11-08 | 2019-02-15 | 天津大学 | A kind of household electrical line setting locator |
| CN109946565A (en) * | 2019-03-20 | 2019-06-28 | 天津大学 | A kind of household electric wire fault point locating device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201392380Y (en) * | 2009-03-09 | 2010-01-27 | 北京合纵实科电力科技有限公司 | Multifunctional error detecting device |
| CN103163422A (en) * | 2011-12-15 | 2013-06-19 | 西安华傲通讯技术有限责任公司 | Device for searching fault points of cable or pipeline |
| CN103337119A (en) * | 2013-06-08 | 2013-10-02 | 山东康威通信技术股份有限公司 | Burglary-resisting monitoring and positioning method for armored cable |
| CN103995217A (en) * | 2014-06-16 | 2014-08-20 | 雷鸣 | Novel line hunting instrument |
-
2017
- 2017-06-26 CN CN201710493610.3A patent/CN107229002B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201392380Y (en) * | 2009-03-09 | 2010-01-27 | 北京合纵实科电力科技有限公司 | Multifunctional error detecting device |
| CN103163422A (en) * | 2011-12-15 | 2013-06-19 | 西安华傲通讯技术有限责任公司 | Device for searching fault points of cable or pipeline |
| CN103337119A (en) * | 2013-06-08 | 2013-10-02 | 山东康威通信技术股份有限公司 | Burglary-resisting monitoring and positioning method for armored cable |
| CN103995217A (en) * | 2014-06-16 | 2014-08-20 | 雷鸣 | Novel line hunting instrument |
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| CN107229002A (en) | 2017-10-03 |
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Effective date of registration: 20191129 Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Applicant after: ELECTRIC POWER RESEARCH INSTITUTE, GUANGDONG POWER GRID CO., LTD. Address before: Room 2107, Wuzhong Mall Building, 388 Dongwu South Road, Suzhou City, Jiangsu Province, 215000 Applicant before: Zhong Xingying |
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