CN204758741U - Power cable intelligent recognition transmission and receiving arrangement - Google Patents
Power cable intelligent recognition transmission and receiving arrangement Download PDFInfo
- Publication number
- CN204758741U CN204758741U CN201520414621.4U CN201520414621U CN204758741U CN 204758741 U CN204758741 U CN 204758741U CN 201520414621 U CN201520414621 U CN 201520414621U CN 204758741 U CN204758741 U CN 204758741U
- Authority
- CN
- China
- Prior art keywords
- circuit
- chip microcomputer
- emitter
- receiving trap
- intelligent recognition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model relates to a power cable intelligent recognition transmission and receiving arrangement belongs to a cable recognition technology field. This power cable intelligent recognition device, including pulse current emitter and electromagnetic signal receiving arrangement, pulse current emitter includes power module, emitter singlechip and the intelligent recognition 0 that discharges, electromagnetic signal receiving arrangement is including signal integrating circuit, low pass filter and signal amplification circuit, AD module and gain control circuit. This product can not can avoid leading to discerning because the cable loop impedance is too big, has improved the discernment success rate, convenience of customers operation is simultaneously avoided the user because the gain adjustment is improper and is leaded to discerning the mistake.
Description
Technical field
The utility model relates to a kind of power cable Intelligent Recognition and launches and receiving trap, belongs to a kind of cable recognition technology field.
Background technology
At present according to DL409-91 People's Republic of China (PRC) industry standard " electrical safe working order " (power line portion) the 234th article of requirement, before sawing the cable laid, must check with cable drawing and whether conform to, and definite confirmation cable is without after electricity, hammer into cable core with the crooked chisel of the band wooden handle of ground connection, can sawing cable be started.But the reason that often can run at the construction field (site) due to history or mismanagement; or drawings marked is ominous; be difficult to from the multi-beam cable conduit line, find a certain root object cable; in order to avoid missing the major accident that saw band electrical cables brings, need to identify target cable by special instrument.Cable identification is from the operation at cable two ends, must ensure that the dualism number at cable two ends is accurate.No matter how reliable the memory of field personnel is, all can not replace the identification of special instrument.
Cable identification is the most frequently used, most proven technique adopts pulse current method, namely a pulse current is sent by emitter to cable one end, this electric current generates an electromagnetic field around target cable, then determines whether target cable in tested region by electric current clamp pickup electromagnetic field signal.At present, the producer of the domestic comparative maturity having some to do, but their receiving trap generally adopts the gauge outfit of pointer-type, the place that interference ratio is more serious at the scene often occurs that gauge outfit is not stopped dynamic back and forth, easy misleading operator, and instrument carries inconvenience, not lightly; Also have some producers abroad, their instrument light and beautiful, easy to carry, adopt digital display, more intuitively, but gain needs manually adjustment, and Gain tuning is improper directly affects recognition effect, and this requires higher to the operator lacked experience.The transmitting amplitude separately having the emitter of an external vendor identification instrument is fixed value, if the ground connection at cable two ends is second-rate, loop resistance is too large, will affect recognition effect.As can be seen here, the device designing an intelligent power cable identification is very necessary.
This type of cable identification receiving trap in the market generally adopts the gauge outfit of pointer-type, and the place that interference ratio is more serious at the scene often occurs that gauge outfit is not stopped dynamic back and forth, easily misleads operator; The gain of partial devices needs manually adjustment, and Gain tuning is improper directly affects recognition effect.In addition, the transmitting amplitude of fractional transmission device is fixed value, if the ground connection at cable two ends is second-rate, loop resistance is too large, will affect recognition effect.
China Patent No.: 201320469997.6 disclose the control mode that " a kind of novel cable recognition device " this receiving trap adopts open loop, and amplifying circuit gain is non-adjustable.Although simplify the design of receiving trap, because ground loop impedance is not fixed, Received signal strength size is uncertain, can affect recognition effect.
China Patent No.: 201420801888.4 disclose the control mode that " a kind of cable identification device " adopts open loop, and radiating circuit amplitude cannot adjust automatically.Although simplify the design of device, when cable loop impedance is too large, easily cause not identifying.
China Patent No.: 201420392889.8 disclose one " novel cable identifier " proposes the heart yearn of the output terminal of signal generator with tested cable near-end to be connected, the Signal analysis indicator being differentiated tested cable current by needle is placed with above tested cable, although simple to operate, but the needle place that interference ratio is more serious at the scene often occurs that gauge outfit is not stopped dynamic back and forth, easily misleads operator.
Therefore, we need to carry out structure optimization to traditional power cable intelligent identification device, solve the problems of the technologies described above.
Utility model content
The utility model object is to provide a kind of power cable intelligent identification device that can solve the above-mentioned problems in the prior art.
The utility model object is achieved through the following technical solutions:
A kind of power cable Intelligent Recognition pulse current emitter, comprise power module, emitter single-chip microcomputer and charge/discharge control circuit, it is characterized in that, also include boost chopper, PWM module and electric capacity, described emitter single-chip microcomputer is electrically connected with boost chopper by PWM module, boost chopper is electrically connected with charge/discharge control circuit by electric capacity, and power module is electrically connected emitter single-chip microcomputer and boost chopper respectively.
As preferably, described power module comprises battery, charging circuit and electric quantity detection apparatus, and battery is charged by charging circuit, powered battery boost chopper, and electric quantity detection apparatus is electrically connected battery and emitter single-chip microcomputer respectively.
As preferably, also include current detection circuit and condition indication circuit, current detection circuit connects charge/discharge control circuit and emitter single-chip microcomputer respectively, condition indication circuit electrical connection emitter single-chip microcomputer.
As preferably, described boost chopper adopts CUK chopper circuit, and described PWM module adopts LM5111 chip.
As preferably, the chip of described electric quantity detection apparatus adopts ACS758, and emitter single-chip microcomputer adopts STC15W408AS.
A kind of power cable Intelligent Recognition electromagnetic signal receiving trap, this device and above-mentioned pulse current emitter with the use of, include receiving trap single-chip microcomputer and coupling clamp, it is characterized in that, also include signal integration circuit, low-pass filtering and signal amplification circuit, A/D module and gain control circuit, described coupling clamp is connection signal integrating circuit, low-pass filtering and signal amplification circuit, A/D module and receiving trap single-chip microcomputer successively, and receiving trap single-chip microcomputer connects low-pass filtering and signal amplification circuit by gain control circuit.
As preferably, also include electric quantity detecting circuit, electric quantity detecting circuit electrical connection receiving trap single-chip microcomputer.
As preferably, also include display module, display module electrical connection receiving trap single-chip microcomputer.
As preferably, STC15L2K60S2 selected by described receiving trap single-chip microcomputer.
As preferably, described display module is that liquid crystal selects lattice lcd module.Receiving trap adopts liquid crystal display, can show battery electric quantity, cable recognition result, operation indicating etc.
Compared with prior art, this product has the following advantages:
1) emitter adjusts the amplitude intensity of transmitting automatically by the electric current in detection streamer loop, so that the electric current in loop is tending towards moderate strength, can avoid because cable loop impedance is too large and cause not identifying, improve recognition success rate.
2) receiving trap can adjust gain automatically according to the signal intensity received, and realizes adaptation function; User-friendly, avoid user because gain-adjusted is improper and cause identification error.
3) receiving trap adopts liquid crystal display, can show battery electric quantity, operation indicating, cable recognition result etc., convenient directly perceived.As user operation is correct, discrimination can reach 100%.
Accompanying drawing explanation
Fig. 1 is that the structural representation of the utility model embodiment comprises emitter and receiving trap.
Label declaration: emitter 1, power module 11, battery 111, charging circuit 112, electric quantity detection apparatus 113, emitter single-chip microcomputer 12, charge/discharge control circuit 13, boost chopper 14, PWM module 15, electric capacity 16, current detection circuit 17, condition indication circuit 18, receiving trap 2, receiving trap single-chip microcomputer 21, coupling clamp 22, signal integration circuit 23, low-pass filtering and signal amplification circuit 24, A/D module 25, gain control circuit 26, electric quantity detecting circuit 27, display module 28, cable 3.
Embodiment
Below in conjunction with specific embodiment, the utility model is described, the following example, only for illustration of the technical solution of the utility model, does not limit protection domain of the present utility model.
Embodiment one:
The present embodiment is for current power cable identification Problems existing, through a large amount of tests and exploration, this emitter 1 adjusts the amplitude intensity of transmitting automatically by the electric current in detection streamer 3 loop, so that the electric current in loop is tending towards moderate strength, improves recognition success rate.
As shown in Figure 1, the product of the present embodiment comprises power module 11, emitter single-chip microcomputer 12, charge/discharge control circuit 13, boost chopper 14, PWM module 15 and electric capacity 16, emitter single-chip microcomputer 12 is electrically connected with boost chopper 14 by PWM module 15, boost chopper 14 is electrically connected with charge/discharge control circuit 13 by electric capacity 16, and power module 11 is electrically connected emitter single-chip microcomputer 12 and boost chopper 14 respectively.
The power module 11 of the present embodiment comprises battery 111, charging circuit 112 and electric quantity detection apparatus 113, battery 111 is charged by charging circuit 112, battery 111 is powered boost chopper 14, and electric quantity detection apparatus 113 is electrically connected battery 111 and emitter single-chip microcomputer 12 respectively.Boost chopper 14 in the present embodiment adopts CUK chopper circuit, and PWM module 15 adopts LM5111 chip complete design; It is by the size of current in detection streamer 3 test loop that current circuit in device detects, then is input to single-chip microcomputer through A/D sampling, and the chip of electric quantity detection apparatus 113 adopts ACS758.
Emitter single-chip microcomputer 12 in device adopts STC15W408AS, and state instruction is by I/O mouth control realization, and control of discharge controls metal-oxide-semiconductor by I/O mouth and realizes.
The present embodiment also includes current detection circuit 17 and condition indication circuit 18, and current detection circuit 17 connects charge/discharge control circuit 13 and emitter single-chip microcomputer 12 respectively, and condition indication circuit 18 is electrically connected emitter single-chip microcomputer 12.
The principle of work of the present embodiment product: this product adopts battery 111 to power, solve field power supply to power difficult problem, charge to battery 111 by 220V alternating current, to meet the specific demand of countryside operation, in operation, electric quantity detection apparatus 113 can Real-Time Monitoring battery 111 electricity, makes charged state instruction.Electric power detection takes dividing potential drop to be input to A/D module to realize.During work, pulse current emitter 1 exports the voltage of certain amplitude by boost chopper 14, voltage magnitude size can be regulated by PWM module 15, the voltage exported charges to pulsed capacitance 16, timing transponder pulse electric current after charge/discharge control circuit 13, this electric current generates an electromagnetic field around target cable 3, and receiving trap 2 determines whether target cable 3 by picking up this electromagnetic field signal.Single-chip microcomputer in emitter 1 can judge impedance loop size according to by measure loop electric current, send conditioning signal to again PWM module 15, regulate the size of PWM, thus change the output voltage amplitude of boost chopper 14, to realize automatically regulating the amplitude intensity of launching.
Embodiment two:
As shown in Figure 1, the receiving trap 2 of the present embodiment adopts liquid crystal display, automatically can adjust gain, realize adaptation function according to the signal intensity received.Solve transmitting amplitude of the prior art to fix, be easily disturbed, Gain tuning is problem improperly, can complete the Intelligent Recognition of power cable 3 fast, effectively, intuitively, accurately
The product of the present embodiment is power cable Intelligent Recognition electromagnetic signal receiving trap 2, pulse current emitter 1 in this device and above-described embodiment one with the use of, include receiving trap single-chip microcomputer 21, coupling clamp 22, signal integration circuit 23, low-pass filtering and signal amplification circuit 24, A/D module 25 and gain control circuit 26, STC15L2K60S2 selected by receiving trap single-chip microcomputer 21, coupling clamp 22 is connection signal integrating circuit 23 successively, low-pass filtering and signal amplification circuit 24, A/D module 25 and receiving trap single-chip microcomputer 21, receiving trap single-chip microcomputer 21 connects low-pass filtering and signal amplification circuit 24 by gain control circuit 26.
The present embodiment also includes electric quantity detecting circuit 27 and display module 28, and electric quantity detecting circuit 27 is electrically connected receiving trap single-chip microcomputer 21, and display module 28 is electrically connected receiving trap single-chip microcomputer 21, and display module 28 selects lattice lcd module for liquid crystal.
The principle of work of the present embodiment product: in electromagnetic field signal receiving trap 2, pulse electrical signal is converted into pick up the electromagnetic field signal on cable 3 with coupling clamp 22 after, integration is carried out through signal integration circuit 23 pairs of signals, signal after Integral Processing entered low-pass filtering again and signal amplifies, be input to A/D module 25 after filtering part undesired signal, improve antijamming capability.After receiving apparatus single-chip microcomputer 21 receives the signal of A/D module 25, send conditioning signal to gain control circuit 26.Gain control circuit 26, by regulating the gain resistor in amplifier loop, realizes automatically adjusting gain according to the power of acknowledge(ment) signal, reaches best to make the quality of Received signal strength.In this device, STC15L2K60S2 selected by receiving apparatus single-chip microcomputer, and liquid crystal selects lattice lcd module, can show battery 111 electricity, cable 3 recognition result, operation indicating etc.
Be only several specific embodiments of the application above, but the application is not limited thereto, the changes that any person skilled in the art can think of, all should drops in the protection domain of the application.
Claims (10)
1. a power cable Intelligent Recognition pulse current emitter, comprise power module, emitter single-chip microcomputer and charge/discharge control circuit, it is characterized in that: also include boost chopper, PWM module and electric capacity, described emitter single-chip microcomputer is electrically connected with boost chopper by PWM module, boost chopper is electrically connected with charge/discharge control circuit by electric capacity, and power module is electrically connected emitter single-chip microcomputer and boost chopper respectively.
2. power cable Intelligent Recognition pulse current emitter according to claim 1, it is characterized in that: described power module comprises battery, charging circuit and electric quantity detection apparatus, battery is charged by charging circuit, powered battery boost chopper, electric quantity detection apparatus is electrically connected battery and emitter single-chip microcomputer respectively.
3. power cable Intelligent Recognition pulse current emitter according to claim 1 and 2, it is characterized in that: also include current detection circuit and condition indication circuit, current detection circuit connects charge/discharge control circuit and emitter single-chip microcomputer respectively, condition indication circuit electrical connection emitter single-chip microcomputer.
4. power cable Intelligent Recognition pulse current emitter according to claim 3, is characterized in that: described boost chopper adopts CUK chopper circuit, and described PWM module adopts LM5111 chip.
5. power cable Intelligent Recognition pulse current emitter according to claim 2, is characterized in that: the chip of described electric quantity detection apparatus adopts ACS758, and emitter single-chip microcomputer adopts STC15W408AS.
6. a power cable Intelligent Recognition electromagnetic signal receiving trap, this device and the pulse current emitter described in claim 1-5 any one with the use of, include receiving trap single-chip microcomputer and coupling clamp, it is characterized in that: also include signal integration circuit, low-pass filtering and signal amplification circuit, A/D module and gain control circuit, described coupling clamp is connection signal integrating circuit successively, low-pass filtering and signal amplification circuit, A/D module and receiving trap single-chip microcomputer, receiving trap single-chip microcomputer connects low-pass filtering and signal amplification circuit by gain control circuit.
7. power cable Intelligent Recognition electromagnetic signal receiving trap according to claim 6, is characterized in that: also include electric quantity detecting circuit, electric quantity detecting circuit electrical connection receiving trap single-chip microcomputer.
8. power cable Intelligent Recognition electromagnetic signal receiving trap according to claim 6, is characterized in that: also include display module, display module electrical connection receiving trap single-chip microcomputer.
9. power cable Intelligent Recognition electromagnetic signal receiving trap according to claim 6, is characterized in that: STC15L2K60S2 selected by described receiving trap single-chip microcomputer.
10. power cable Intelligent Recognition electromagnetic signal receiving trap according to claim 8, is characterized in that: described display module is that liquid crystal selects lattice lcd module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520414621.4U CN204758741U (en) | 2015-06-15 | 2015-06-15 | Power cable intelligent recognition transmission and receiving arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520414621.4U CN204758741U (en) | 2015-06-15 | 2015-06-15 | Power cable intelligent recognition transmission and receiving arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204758741U true CN204758741U (en) | 2015-11-11 |
Family
ID=54473436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520414621.4U Active CN204758741U (en) | 2015-06-15 | 2015-06-15 | Power cable intelligent recognition transmission and receiving arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204758741U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891641A (en) * | 2016-05-04 | 2016-08-24 | 国网上海市电力公司 | Cable recognition device and recognition method |
| CN109884477A (en) * | 2019-03-08 | 2019-06-14 | 武汉鸿志高测电气技术有限公司 | Identify the instrument and method of power cable |
| CN111856155A (en) * | 2020-06-23 | 2020-10-30 | 贵州电网有限责任公司 | Cable information positioning and information acquisition method in cable channel |
-
2015
- 2015-06-15 CN CN201520414621.4U patent/CN204758741U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891641A (en) * | 2016-05-04 | 2016-08-24 | 国网上海市电力公司 | Cable recognition device and recognition method |
| CN109884477A (en) * | 2019-03-08 | 2019-06-14 | 武汉鸿志高测电气技术有限公司 | Identify the instrument and method of power cable |
| CN111856155A (en) * | 2020-06-23 | 2020-10-30 | 贵州电网有限责任公司 | Cable information positioning and information acquisition method in cable channel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204481817U (en) | Optical module parameter testing equipment | |
| CN104237831B (en) | A kind of counter of lightning arrester tester calibration device | |
| CN204758741U (en) | Power cable intelligent recognition transmission and receiving arrangement | |
| CN104316825A (en) | Low voltage user electric energy meter wiring checking method and system | |
| CN104625332B (en) | Stability evaluation system and method based on carbon dioxide welding input end electric signal | |
| CN1933277B (en) | Method for charger identifying battery variety and charger circuit thereof | |
| CN108562860A (en) | Electric energy meter two-way accessory power supply power consumption Auto-Test System and test method | |
| CN208172235U (en) | A kind of pulse collection and sending device | |
| CN204789976U (en) | Automatic calibration equipment of electric energy meter error | |
| CN204241576U (en) | Electromagnetic wave energy pick-up unit | |
| CN205581212U (en) | Power battery internal resistance on -line monitoring system | |
| CN207623444U (en) | A kind of multi-epitope is visited one house after another examination device | |
| CN205656241U (en) | Ground resistance on -line monitoring alarm and remote monitering system | |
| CN102121976A (en) | Portable polarity calibration device for mutual inductor | |
| CN211123000U (en) | Wireless measurement ammeter | |
| CN204423492U (en) | A kind of Detecting of coin system | |
| CN211123306U (en) | Ultra-deep pipeline probe equipment | |
| CN209460354U (en) | A kind of proof voltage tester | |
| CN209821274U (en) | Optical coupler detection current circuit | |
| CN103308744B (en) | High-tension cable gauze screen ground wire leakage current detector | |
| CN105675996A (en) | Power cell internal resistance on-line monitoring system and method | |
| CN201449421U (en) | Field strength meter | |
| CN203191495U (en) | Instantaneous short circuit detection device for cables | |
| CN209911442U (en) | Clamp-on current recorder | |
| CN208156110U (en) | A kind of duration power quality disturbances instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |