CN203327019U - High power signal transmission device based on underground cable comprehensive detection system - Google Patents
High power signal transmission device based on underground cable comprehensive detection system Download PDFInfo
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- CN203327019U CN203327019U CN2013203282886U CN201320328288U CN203327019U CN 203327019 U CN203327019 U CN 203327019U CN 2013203282886 U CN2013203282886 U CN 2013203282886U CN 201320328288 U CN201320328288 U CN 201320328288U CN 203327019 U CN203327019 U CN 203327019U
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Abstract
The utility model relates to a high power signal transmission device based on an underground cable comprehensive detection system. The device is mainly technically characterized in that the device comprises a single chip microcomputer, a direct digital frequency synthesizer, a radio-frequency power transmission module, a keyboard and a display. The single chip microcomputer is respectively connected with the direct digital frequency synthesizer, the keyboard and the display. The direct digital frequency synthesizer is connected with the radio-frequency power transmission module. The output terminal of the radio-frequency power transmission module is connected with a loading coil through a radio-frequency connecting wire. According to the utility model, the design is reasonable; a direct digital frequency synthesis technology is used and is combined with a high power radio-frequency power transmission technology; high power radio-frequency signal transmission which is continuously adjustable in a certain frequency range is realized; the frequency control precision is high; the frequency is stable; the detection depth can be up to 9 meters; and the underground cable comprehensive detection system is formed by the device, so that the detection difficulty is reduced, the detection accuracy is improved, and the labor intensity of detection personnel is reduced.
Description
Technical field
The utility model belongs to the cable detection technical field, especially a kind of high-power signal emitter based on the underground cable comprehensive detection system.
Background technology
In electrical power transmission system, a lot of power cables are buried under the ground, and these cables are likely through complicated landform or the situation such as cross the ocean and sea.When underground cable is safeguarded, need to accurately locate underground cable, follow the trail of, identification and depth measurement, although in work progress, drafting has the mark of line map and some, but have unavoidably, some are smudgy, trend is not clear and inaccurate place, in mining process, not only cause a large amount of manpowers and the waste of material resources, inefficiency, dig mistake and cause heavy losses but also there will be.The problems such as sender unit ubiquity low precision, the frequency that existing underground cable checkout gear adopts is unstable, can't realize the depth detection function.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of reasonable in design, accuracy of detection is high and the high-power signal emitter based on the underground cable comprehensive detection system of frequency stabilization.
The utility model solves its technical problem and takes following technical scheme to realize:
A kind of high-power signal emitter based on the underground cable comprehensive detection system, comprise single-chip microcomputer, Direct Digital Frequency Synthesizers, radio-frequency power transmitter module, keyboard and display screen, single-chip microcomputer is connected with Direct Digital Frequency Synthesizers, keyboard and display screen respectively, this Direct Digital Frequency Synthesizers is connected with the radio-frequency power transmitter module, and the lead-out terminal of this radio-frequency power transmitter module is used the radio frequency connecting line to be connected to loading coil.
And described Direct Digital Frequency Synthesizers consists of AD9850 Direct Digital frequency synthesis chip and peripheral circuit thereof.
And, the radio-frequency module that described radio-frequency power transmitter module utilized bandwidth is 20Hz-30kHz, peak power output 80W.
Advantage of the present utility model and good effect are:
1, this emitter uses direct digital frequency synthesis technology and in conjunction with high-power RF power emission technology, realize continuously adjustable high-power RF signal emission in the certain frequency scope, make the control precision of frequency higher, frequency is more stable, detects the degree of depth and can reach more than 9 meters.
2, the utility model is reasonable in design, itself and loading coil, signal receiving device and demonstration tape deck form the underground cable comprehensive detection system, make the control precision of frequency higher, frequency is more stable, use the double reception antenna to coordinate receiving circuit simultaneously, and showing that tape deck is shown, and detection difficulty is reduced and improve the accuracy detected, alleviated testing staff's labour intensity.
The accompanying drawing explanation
Fig. 1 is circuit block diagram of the present utility model;
Fig. 2 is the connection diagram of the underground cable comprehensive detection system that consists of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
A kind of high-power signal emitter based on the underground cable comprehensive detection system, as shown in Figure 1, comprise single-chip microcomputer, Direct Digital Frequency Synthesizers, radio-frequency power transmitter module, keyboard and display screen, single-chip microcomputer is connected with Direct Digital Frequency Synthesizers, keyboard and display screen respectively, this Direct Digital Frequency Synthesizers is connected with the radio-frequency power transmitter module, and the lead-out terminal of this radio-frequency power transmitter module is used the radio frequency connecting line to be connected to loading coil.In the present embodiment, the peripheral circuits such as Direct Digital Frequency Synthesizers use AD9850 Direct Digital frequency synthesis chip and resistance, electric capacity, crystal oscillator form, and are the core components of whole system, provide sinusoidal signal to generate.Single-chip microcomputer, for receiving the parameters of keyboard input, is arranged AD9850, and by parameter display on LCD display.The radio-frequency module that the radio-frequency power transmitter module can utilized bandwidth is 20Hz-30kHz, peak power output 80W carries out emission of radio frequency signals.Keyboard is used for parameters to carry out, and LCD display is for showing the parameters such as current tranmitting frequency, transmitting power and Transmission Time Interval.In use, the lead-out terminal of radio-frequency power transmitter module is connected with loading coil, and after using keyboard that the parameters such as tranmitting frequency, transmitting power and Transmission Time Interval are set and start working by start key.
As shown in Figure 2, the utility model and loading coil, signal receiving device and demonstration tape deck are combined and are formed the comprehensive detection function of underground cable comprehensive detection system realization to underground cable, the output of the high-power signal emitter in this detection system is connected with loading coil, this loading coil is sleeved on cable to be detected and under the control of high-power signal emitter and produces radiofrequency signal, carry out the voltage demonstration by voltmeter after the signal receiving device received RF signal and by Voltage-output to showing on tape deck, show after tape deck is calculated the voltage received to output on LCD display and show cable institute buried depth degree, simultaneously can also be by path tag on electronic chart, obtain the trajectory diagram of cable.
It is emphasized that; embodiment described in the utility model is illustrative; rather than determinate; therefore the utility model comprises and is not limited to the embodiment described in embodiment; every other execution modes that drawn according to the technical solution of the utility model by those skilled in the art, belong to the scope that the utility model is protected equally.
Claims (3)
1. the high-power signal emitter based on the underground cable comprehensive detection system, it is characterized in that: comprise single-chip microcomputer, Direct Digital Frequency Synthesizers, radio-frequency power transmitter module, keyboard and display screen, single-chip microcomputer is connected with Direct Digital Frequency Synthesizers, keyboard and display screen respectively, this Direct Digital Frequency Synthesizers is connected with the radio-frequency power transmitter module, and the lead-out terminal of this radio-frequency power transmitter module is used the radio frequency connecting line to be connected to loading coil.
2. the high-power signal emitter based on the underground cable comprehensive detection system according to claim 1, it is characterized in that: described Direct Digital Frequency Synthesizers consists of AD9850 Direct Digital frequency synthesis chip and peripheral circuit thereof.
3. the high-power signal emitter based on the underground cable comprehensive detection system according to claim 1, is characterized in that: the radio-frequency module that described radio-frequency power transmitter module utilized bandwidth is 20Hz-30kHz, peak power output 80W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203282886U CN203327019U (en) | 2013-06-07 | 2013-06-07 | High power signal transmission device based on underground cable comprehensive detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203282886U CN203327019U (en) | 2013-06-07 | 2013-06-07 | High power signal transmission device based on underground cable comprehensive detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203327019U true CN203327019U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203282886U Expired - Lifetime CN203327019U (en) | 2013-06-07 | 2013-06-07 | High power signal transmission device based on underground cable comprehensive detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203327019U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105721069A (en) * | 2014-12-05 | 2016-06-29 | 成都创客之家科技有限公司 | 2.4G wireless signal detection system |
| CN108535584A (en) * | 2018-04-12 | 2018-09-14 | 天津港设施管理服务公司 | Distribution box wireline inspection equipment |
-
2013
- 2013-06-07 CN CN2013203282886U patent/CN203327019U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105721069A (en) * | 2014-12-05 | 2016-06-29 | 成都创客之家科技有限公司 | 2.4G wireless signal detection system |
| CN108535584A (en) * | 2018-04-12 | 2018-09-14 | 天津港设施管理服务公司 | Distribution box wireline inspection equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |