CN105826906B - A kind of protector corresponds to power frequency supply route line-hunting method and its device - Google Patents
A kind of protector corresponds to power frequency supply route line-hunting method and its device Download PDFInfo
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- CN105826906B CN105826906B CN201610285212.8A CN201610285212A CN105826906B CN 105826906 B CN105826906 B CN 105826906B CN 201610285212 A CN201610285212 A CN 201610285212A CN 105826906 B CN105826906 B CN 105826906B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
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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
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
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- General Physics & Mathematics (AREA)
- Amplifiers (AREA)
- Fire Alarms (AREA)
Abstract
The present invention discloses a kind of protector and corresponds to power frequency supply route line-hunting method; the following steps are included: transmitter is connected on power frequency supply port by (1) setting including the hunting device (2) of transmitter and receiver, and receiver is close to a certain group of protector；(3) transmitter internal signal transmitting module emits signal, and signal is conducted by power frequency supply line to protector corresponding with power frequency supply；(4) receiver has detected whether signal reception, if so, then the signal receiving module in receiver receives signal; and processing is amplified to signal by signal amplification module; and trigger signal is generated, prompt information is issued, prompting the protector is protector corresponding with power frequency supply；Otherwise, which is moved to the surface of another group of protector in collective protection device, is repeated step (4).Also disclose hunting device.Quick and precisely, working efficiency improves for hunting of the present invention, and guarantee carries out normal maintenance maintenance work in time.
Description
Technical field
The present invention relates to hunting devices more particularly to a kind of protector to correspond to power frequency supply route line-hunting method and its dress
It sets.
Background technique
In the electric supply system in large unit building, every floor can all install earth leakage protective device concentratedly, due to entire
Electric supply system complex circuit, along with sunkening cord within the walls and cabling mode is extremely complex, it is virtually impossible to determine and a certain power supply
The corresponding earth leakage protective device of socket.When needing repairing, safeguarding, install a certain power port, need by the power port with
Its corresponding protector disconnects, but due to complicated route, can not find earth leakage protective device corresponding with the power port,
Again because in system some equipment cannot power off at work, thus cannot all off all earth leakage protective devices, therefore,
The route for finding the corresponding earth leakage protective device of power port to need repairing is a very big engineering, occupies a large amount of time
With resource, working efficiency is greatly affected, normal maintenance maintenance work can not be carried out, is caused greatly not to electricity consumer
Just.
Therefore, the method that protector corresponds to power frequency supply route can quickly be found by developing one kind, it appears especially urgent.
Summary of the invention
In view of the above deficiencies, the purpose of the present invention is to provide a kind of protector correspond to power frequency supply route line-hunting method and
Its device, the line-hunting method, hunting quick and precisely, greatly reduced the hunting time, improve working efficiency, guarantee to carry out in time
Normal maintenance maintenance work；The hunting device, internal circuit are stablized, high reliablity, strong antijamming capability.
The technical scheme adopted by the invention to achieve the purpose is as follows:
A kind of protector corresponds to power frequency supply route line-hunting method, which comprises the following steps:
(1) a hunting device is set, which includes transmitter and receiver, wherein the transmitter internal circuit
Including a signal emission module, which includes signal receiving module, signal amplification module, trigger module and mentions
Show module；
(2) transmitter is connected on the port power frequency supply 220V/50Hz, and the receiver is close to collective
The surface of a certain group of protector in protector, the distance between the receiver and transmitter are not more than 200 meters；
(3) signal is emitted by the signal emission module inside the transmitter, signal passes through 220V/50Hz power frequency supply
Line is conducted to protector corresponding with power frequency supply；
(4) receiver has detected whether signal reception, if so, then the signal receiving module in the receiver receives letter
Number, and level-one enhanced processing is carried out to signal by signal amplification module, the signal after enhanced processing makes trigger module generate touching
It signals, and prompt information is issued by cue module, prompting the protector is protector corresponding with power frequency supply, i.e.,
The route of the protector is the route being connected with power frequency supply；Otherwise, which is moved in collective protection device
The surface of another group of protector, and with another group of protector surface close to repeatedly step (4).
As a further improvement of the present invention, the receiver internal circuit in the step (1) further includes that signal is anti-interference
Processing module, when which includes signal amplification unit, signal amplification factor adjustment unit, capacitor charging
Between control unit, charging holding unit and filter unit；The step (4) is further comprising the steps of: carrying out level-one to signal and puts
After big processing, second level enhanced processing is carried out to signal by the signal amplification unit in signal anti-interference process module, and pass through
Signal amplification factor adjustment unit adjustment signal amplification factor passes through capacitor charging time control unit and charging holding unit control
System and holding capacitor have enough charging time, carry out signal filtering processing finally by filter unit, it is adaptive to obtain output
It answers and stable signal.
As a further improvement of the present invention, in the step (4), the signal receiving module is received by inductance L1
Signal, the signal amplification module amplify processing to signal by triode Q1, and the trigger module passes through NE555 chip
U1 generates trigger signal, and the cue module issues prompt information by light emitting diode D11 and buzzer BZ2.
As a further improvement of the present invention, the prompt information includes at least one in sound buzzing and LED light flashing
Kind.
It is a kind of implement the above method protector correspond to power frequency supply route hunting device, which is characterized in that including emit
Device and receiver, wherein the transmitter is connected on the port of power frequency supply, and the transmitter internal circuit includes a signal
Transmitting module；The receiver internal circuit include sequentially connected signal receiving module, signal amplification module, trigger module with
Cue module.
As a further improvement of the present invention, the signal emission module in the transmitter internal circuit is by zero line and zero
The series arm composition connected between line end, the series arm are composed in series by a triggerable diode D7 with a parallel branch,
The parallel branch includes capacitor C1, capacitor C2, resistance R3, resistance R4, diode D8 and diode D9, wherein the zero line
Connect can trigger the one end diode D7, this can trigger diode D7 other end be respectively connected to the one end capacitor C1, the one end resistance R3,
The one end capacitor C2 and the one end resistance R4, the capacitor C1 other end are respectively connected to the resistance R3 other end and diode D8 anode, should
The capacitor C2 other end is respectively connected to the resistance R4 other end and diode D9 cathode, and diode D8 cathode is respectively connected to two poles
Pipe D9 anode and zero line side.
As a further improvement of the present invention, the transmitter internal circuit further includes zener diode D1, two pole of pressure stabilizing
Pipe D2, resistance R1, light emitting diode D3, zener diode D4, diode D5, resistance R2 and light emitting diode D6, wherein described
Zero line is further connected to zener diode D1 cathode and zener diode D4 cathode, and zener diode D1 anode is connected to
Zener diode D2 anode, zener diode D2 cathode are connected to the one end resistance R1, and the resistance R1 other end is connected to luminous
Diode D3 anode, light emitting diode D3 cathode are connected to protective ground wire；The zener diode D4 anode is connected to two
Pole pipe D5 anode, diode D5 cathode are connected to the one end resistance R2, and the resistance R2 other end is being connected to light emitting diode D6 just
Pole, light emitting diode D6 cathode are connected to zero line side.
As a further improvement of the present invention, the signal receiving module includes inductance L1, the signal amplification module packet
Triode Q1 is included, the trigger module includes NE555 chip U1, and the cue module includes light emitting diode D11 and buzzer
BZ2。
As a further improvement of the present invention, the receiver internal circuit includes resistance R5, capacitor C3, resistance R6, electricity
Hold C4, resistance R7, capacitor C5, resistance R8, resistance R9, capacitor C6, capacitor C7, resistance R10, resistance R11, zener diode D10
With capacitor C8, wherein the resistance R5 is in parallel with capacitor C3, and branch one end ground connection after parallel connection, the other end is respectively connected to electricity
Hinder the one end R6 and the one end inductance L1；The inductance L1 other end is connected to triode Q1 base stage B, and the resistance R6 other end connects respectively
It is connected to the pin 2 of triode Q1 collector C, the one end capacitor C5, the one end resistance R8 and NE555 chip U1；The triode Q1 hair
Emitter-base bandgap grading E is connected to the parallel branch that capacitor C4 and resistance R7 is formed；The capacitor C5 other end be respectively connected to the resistance R8 other end,
The one end resistance R9, the one end resistance R10, NE555 chip U1 pin 4 and NE555 chip U1 pin 8；The NE555 chip U1
Pin 6 be connected to the resistance R9 other end, the pin 7 of NE555 chip U1 is connect with the one end capacitor C6, the capacitor C6 other end
Ground connection, the pin 5 of NE555 chip U1 are connected to the one end capacitor C7, and the capacitor C7 other end is grounded, NE555 chip U1's
Pin 1 is grounded, and the pin 3 of NE555 chip U1 is respectively connected to zener diode D10 anode, the one end capacitor C8, light-emitting diodes
Pipe D11 cathode and the one end buzzer BZ2, the capacitor C8 other end are grounded with the buzzer BZ2 other end；The resistance R10 is another
One end is respectively connected to zener diode D10 cathode and the one end resistance R11, and the resistance R11 other end and light emitting diode D11 are just
Pole connection.
As a further improvement of the present invention, the receiver internal circuit further includes being set to signal amplification module and touching
The signal anti-interference process module between module is sent out, which includes signal amplification unit, signal amplification
Multiple adjustment unit, capacitor charging time control unit, charging holding unit and filter unit；And the signal anti-interference process mould
Block includes operational amplifier A1, operational amplifier A2, operational amplifier A3, operational amplifier A4, resistance R12, resistance R13, electricity
Hinder R14, resistance R15, resistance R16, resistance R17, resistance R18, capacitor C9, capacitor C10, capacitor C11, capacitor C12 and capacitor
C13, wherein the operational amplifier A1 reverse input end is respectively connected to the one end resistance R12 and the one end resistance R15, the operation
Amplifier A1 output end is respectively connected to the resistance R12 other end and the one end resistance R13；The resistance R15 other end is separately connected
To the one end resistance R16 and operational amplifier A2 reverse input end, it is another that operational amplifier A2 output end is respectively connected to resistance R16
One end and the one end resistance R17；The resistance R13 other end is respectively connected to the one end resistance R14 and the one end capacitor C9, capacitor C9
The other end is respectively connected to the one end capacitor C10 and signal anti-interference process module output end, and the capacitor C10 other end is separately connected
To the one end capacitor C11 and signal anti-interference process module output end, it is another that the capacitor C11 other end is respectively connected to resistance R17
End and the one end resistance R18；The resistance R14 other end is respectively connected to the one end capacitor C12 and inputs in the same direction with operational amplifier A3
End, operational amplifier A3 reverse input end is respectively connected to operational amplifier A3 output end and signal anti-interference process module is defeated
Outlet；The resistance R18 other end is respectively connected to the one end capacitor C13 and operational amplifier A4 positive input, which puts
Big device A4 reverse input end is respectively connected to operational amplifier A4 output end and signal anti-interference process module output end；The electricity
Hold the C12 other end to be grounded with the capacitor C13 other end.
The invention has the benefit that the protector corresponds to power frequency supply route line-hunting method, strong antijamming capability, hunting
Quick and precisely, it greatly reduced the hunting time, improve working efficiency, guarantee carries out normal maintenance maintenance work in time；It should
Protector corresponds to power frequency supply route hunting device, and internal circuit is stablized, high reliablity, strong antijamming capability.
Above-mentioned is the general introduction of inventive technique scheme, below in conjunction with attached drawing and specific embodiment, is done further to the present invention
Explanation.
Detailed description of the invention
Fig. 1 is the structural block diagram of one hunting device of embodiment；
Fig. 2 is one transmitter internal circuit diagram of embodiment；
Fig. 3 is one receiver internal circuit diagram of embodiment；
Fig. 4 is the structural block diagram of two hunting device of embodiment；
Fig. 5 is embodiment binary signal anti-interference process module circuit diagram.
Specific embodiment
Further to illustrate the present invention to reach the technical means and efficacy that predetermined purpose is taken, below in conjunction with attached drawing
And preferred embodiment, detailed description of specific embodiments of the present invention.
Embodiment one:
Please refer to Fig. 1 to Fig. 3, the embodiment of the present invention provides a kind of protector and corresponds to power frequency supply route line-hunting method, wraps
Include following steps:
(1) a hunting device is set, which includes transmitter and receiver, wherein the transmitter internal circuit
Including a signal emission module, which includes signal receiving module, signal amplification module, trigger module and mentions
Show module；
(2) transmitter is connected on the port power frequency supply 220V/50Hz, i.e., transmitter is inserted into and needs to safeguard
Socket aperture in, it is ensured that there is no problem for transmitter contact, and the receiver is close to a certain group of guarantor in collective protection device
The surface of device is protected, the distance between the receiver and transmitter are not more than 200 meters；
(3) signal is emitted by the signal emission module inside the transmitter, signal passes through 220V/50Hz power frequency supply
Line is conducted to protector corresponding with power frequency supply；
(4) receiver has detected whether signal reception, if so, then the signal receiving module in the receiver receives letter
Number, and level-one enhanced processing is carried out to signal by signal amplification module, the signal after enhanced processing makes trigger module generate touching
It signals, and prompt information is issued by cue module, prompting the protector is protector corresponding with power frequency supply, i.e.,
The route of the protector is the route being connected with power frequency supply；Otherwise, which is moved in collective protection device
The surface of another group of protector, and with another group of protector surface close to repeatedly step (4).
In the step (4), the signal receiving module receives signal by inductance L1, and the signal amplification module is logical
It crosses triode Q1 and processing is amplified to signal, the trigger module generates trigger signal, the prompt by NE555 chip U1
Module issues prompt information by light emitting diode D11 and buzzer BZ2.
In the present embodiment, the prompt information includes at least one of sound buzzing and LED light flashing.
The protector that the present embodiment additionally provides the implementation above method corresponds to power frequency supply route hunting device comprising hair
Emitter and receiver, wherein the transmitter is connected on the port of power frequency supply, and the transmitter internal circuit includes a letter
Number transmitting module；The receiver internal circuit includes sequentially connected signal receiving module, signal amplification module, trigger module
With cue module.
As shown in Fig. 2, the signal emission module in the transmitter internal circuit between zero line and zero line side by connecting
Series arm composition, which is composed in series by a triggerable diode D7 with a parallel branch, the parallel branch packet
Include capacitor C1, capacitor C2, resistance R3, resistance R4, diode D8 and diode D9, wherein the zero line connection can trigger two
The one end pole pipe D7, this can trigger diode D7 other end be respectively connected to the one end capacitor C1, the one end resistance R3, the one end capacitor C2 with
The one end resistance R4, the capacitor C1 other end are respectively connected to the resistance R3 other end and diode D8 anode, the capacitor C2 other end
It is respectively connected to the resistance R4 other end and diode D9 cathode, diode D8 cathode is respectively connected to diode D9 anode and zero
Line end.
The transmitter internal circuit further includes zener diode D1, zener diode D2, resistance R1, light emitting diode
D3, zener diode D4, diode D5, resistance R2 and light emitting diode D6, wherein the zero line is further connected to pressure stabilizing
Diode D1 cathode and zener diode D4 cathode, zener diode D1 anode are connected to zener diode D2 anode, this is steady
Pressure diode D2 cathode is connected to the one end resistance R1, and the resistance R1 other end is connected to light emitting diode D3 anode, this luminous two
Pole pipe D3 cathode is connected to protective ground wire；The zener diode D4 anode is connected to diode D5 anode, diode D5
Cathode is connected to the one end resistance R2, and the resistance R2 other end is connected to light emitting diode D6 anode, light emitting diode D6 cathode
It is connected to zero line side.
As shown in figure 3, the signal receiving module includes inductance L1, the signal amplification module includes triode Q1, institute
Stating trigger module includes NE555 chip U1, and the cue module includes light emitting diode D11 and buzzer BZ2.
The receiver internal circuit includes resistance R5, capacitor C3, resistance R6, capacitor C4, resistance R7, capacitor C5, resistance
R8, resistance R9, capacitor C6, capacitor C7, resistance R10, resistance R11, zener diode D10 and capacitor C8, wherein the resistance R5
In parallel with capacitor C3, branch one end ground connection after parallel connection, the other end is respectively connected to the one end resistance R6 and the one end inductance L1；It is described
The inductance L1 other end is connected to triode Q1 base stage B, and the resistance R6 other end is respectively connected to triode Q1 collector C, capacitor
The pin 2 of the one end C5, the one end resistance R8 and NE555 chip U1；The triode Q1 emitter E is connected to capacitor C4 and resistance R7
The parallel branch of formation；The capacitor C5 other end be respectively connected to the resistance R8 other end, the one end resistance R9, the one end resistance R10,
The pin 4 of NE555 chip U1 and the pin 8 of NE555 chip U1；It is another that the pin 6 of the NE555 chip U1 is connected to resistance R9
End, the pin 7 of NE555 chip U1 are connect with the one end capacitor C6, and capacitor C6 other end ground connection, the NE555 chip U1's draws
Foot 5 is connected to the one end capacitor C7, and the pin 1 of capacitor C7 other end ground connection, NE555 chip U1 is grounded, NE555 chip U1
Pin 3 be respectively connected to zener diode D10 anode, the one end capacitor C8, light emitting diode D11 cathode and buzzer BZ2 mono-
End, the capacitor C8 other end are grounded with the buzzer BZ2 other end；The resistance R10 other end is respectively connected to two pole of pressure stabilizing
Pipe D10 cathode and the one end resistance R11, the resistance R11 other end are connect with light emitting diode D11 anode.
Protector in the present embodiment is earth leakage protective device, and the present embodiment protector corresponds to power frequency supply route hunting side
The realization of method needs to guarantee that power frequency supply 220V/50Hz port voltage and wiring are normal, while transmitter transmitting signal strength is not
Can be too strong, it prevents from interfering with entire power frequency supply power supply system.
Above step through this embodiment, by receiver along the surface of collective's earth leakage protective device with single group earth leakage protective device
It is found one by one for unit, as long as receiver has sound buzzing prompt and LED light flash for prompting on a certain unit earth leakage protective device
At least one of, then show that this earth leakage protective device is the route that corresponding transmitter insert division comes, turns off this earth leakage protective
Device, it can this route is safeguarded, just will not influence the normal power supply of other routes in this way.
Embodiment two:
It is referring to figure 4. with Fig. 5, the present embodiment and the main distinction of embodiment one: the receiver in the step (1)
Internal circuit further includes signal anti-interference process module, which includes that signal amplification unit, signal are put
Big multiple adjustment unit, capacitor charging time control unit, charging holding unit and filter unit；The step (4) further includes
Following steps: after carrying out level-one enhanced processing to signal, by the signal amplification unit in signal anti-interference process module to letter
Number second level enhanced processing is carried out, and by signal amplification factor adjustment unit adjustment signal amplification factor, when passing through capacitor charging
Between control unit and charging holding unit control and holding capacitor have enough charging time, carried out finally by filter unit
Signal filtering processing obtains output adaptive and stable signal.
The receiver internal circuit that the protector corresponds in power frequency supply route hunting device further includes being set to signal
Signal anti-interference process module between amplification module and trigger module, the signal anti-interference process module include that signal amplification is single
Member, signal amplification factor adjustment unit, capacitor charging time control unit, charging holding unit and filter unit；Such as Fig. 5 institute
Show, which includes operational amplifier A1, operational amplifier A2, operational amplifier A3, operational amplifier
A4, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, capacitor C9, capacitor C10, electricity
Hold C11, capacitor C12 and capacitor C13, wherein the operational amplifier A1 reverse input end be respectively connected to the one end resistance R12 and
The one end resistance R15, operational amplifier A1 output end are respectively connected to the resistance R12 other end and the one end resistance R13；The resistance
The R15 other end is respectively connected to the one end resistance R16 and operational amplifier A2 reverse input end, operational amplifier A2 output end point
It is not connected to the resistance R16 other end and the one end resistance R17；The resistance R13 other end is respectively connected to the one end resistance R14 and electricity
Hold the one end C9, the capacitor C9 other end is respectively connected to the one end capacitor C10 and signal anti-interference process module output end, the capacitor
The C10 other end is respectively connected to the one end capacitor C11 and signal anti-interference process module output end, capacitor C11 other end difference
It is connected to the resistance R17 other end and the one end resistance R18；The resistance R14 other end is respectively connected to the one end capacitor C12 and operation
Amplifier A3 noninverting input, operational amplifier A3 reverse input end are respectively connected to operational amplifier A3 output end and signal
Anti-interference process module output end；The resistance R18 other end is respectively connected to the one end capacitor C13 and operational amplifier A4 is positive
Input terminal, operational amplifier A4 reverse input end are respectively connected to operational amplifier A4 output end and signal anti-interference process mould
Block output end；The capacitor C12 other end is grounded with the capacitor C13 other end.
Signal between transmitter and receiver of the present invention sends and receives, and needs the distance by 200 meters or so, simultaneously
Signal is needed across numerous complicated route, therefore signal can inevitably generate interference.The signal that the present embodiment makes referrals to receiver
Anti-interference process is carried out, adaptive and stable signal is obtained, improves the anti-interference ability of entire hunting device, finally make hunting
Process quick and precisely, greatly reduced the hunting time, to improve working efficiency.
Emphasis of the invention essentially consists in, which corresponds to power frequency supply route line-hunting method, and strong antijamming capability is sought
Line quick and precisely, greatly reduced the hunting time, improve working efficiency, and guarantee carries out normal maintenance maintenance work in time；
The protector corresponds to power frequency supply route hunting device, and internal circuit is stablized, high reliablity, strong antijamming capability.
The above described is only a preferred embodiment of the present invention, be not intended to limit the scope of the present invention,
Therefore technical characteristic same as or similar to the above embodiments of the present invention is used, it is within the scope of the present invention.
Claims (4)
1. a kind of protector corresponds to power frequency supply route hunting device, which is characterized in that including transmitter and receiver, wherein
The transmitter is connected on the port of power frequency supply, and the transmitter internal circuit includes a signal emission module；It is described to connect
Receiving device internal circuit includes sequentially connected signal receiving module, signal amplification module, trigger module and cue module；
Signal emission module in the transmitter internal circuit is made of the series arm connected between zero line and zero line side,
The series arm is composed in series by a triggerable diode D7 with a parallel branch, the parallel branch include capacitor C1, capacitor C2,
Resistance R3, resistance R4, diode D8 and diode D9, wherein the zero line, which connects, can trigger the one end diode D7, this can be touched
The hair diode D7 other end is respectively connected to the one end capacitor C1, the one end resistance R3, the one end capacitor C2 and the one end resistance R4, the capacitor
The C1 other end is respectively connected to the resistance R3 other end and diode D8 anode, and it is another that the capacitor C2 other end is respectively connected to resistance R4
One end and diode D9 cathode, diode D8 cathode are respectively connected to diode D9 anode and zero line side；
The signal receiving module includes inductance L1, and the signal amplification module includes triode Q1, and the trigger module includes
NE555 chip U1, the cue module include light emitting diode D11 and buzzer BZ2.
2. protector according to claim 1 corresponds to power frequency supply route hunting device, which is characterized in that the transmitter
Internal circuit further includes zener diode D1, zener diode D2, resistance R1, light emitting diode D3, zener diode D4, two poles
Pipe D5, resistance R2 and light emitting diode D6, wherein the zero line is further connected to zener diode D1 cathode and pressure stabilizing two
Pole pipe D4 cathode, zener diode D1 anode are connected to zener diode D2 anode, and zener diode D2 cathode is connected to
The one end resistance R1, the resistance R1 other end are connected to light emitting diode D3 anode, and light emitting diode D3 cathode is connected to protection
Ground line；The zener diode D4 anode is connected to diode D5 anode, and diode D5 cathode is connected to the one end resistance R2,
The resistance R2 other end is connected to light emitting diode D6 anode, and light emitting diode D6 cathode is connected to zero line side.
3. protector according to claim 1 corresponds to power frequency supply route hunting device, which is characterized in that the receiver
Internal circuit includes resistance R5, capacitor C3, resistance R6, capacitor C4, resistance R7, capacitor C5, resistance R8, resistance R9, capacitor C6, electricity
Hold C7, resistance R10, resistance R11, zener diode D10 and capacitor C8, wherein the resistance R5 is in parallel with capacitor C3, after in parallel
Branch one end ground connection, the other end is respectively connected to the one end resistance R6 and the one end inductance L1；The inductance L1 other end is connected to
Triode Q1 base stage B, the resistance R6 other end be respectively connected to triode Q1 collector C, the one end capacitor C5, the one end resistance R8 with
The pin 2 of NE555 chip U1；The triode Q1 emitter E is connected to the parallel branch that capacitor C4 and resistance R7 is formed；The electricity
Hold the C5 other end be respectively connected to the resistance R8 other end, the one end resistance R9, the one end resistance R10, NE555 chip U1 pin 4 with
The pin 8 of NE555 chip U1；The pin 6 of the NE555 chip U1 is connected to the resistance R9 other end, and the NE555 chip U1's draws
Foot 7 is connect with the one end capacitor C6, and capacitor C6 other end ground connection, the pin 5 of NE555 chip U1 is connected to the one end capacitor C7,
The pin 1 of capacitor C7 other end ground connection, NE555 chip U1 is grounded, and the pin 3 of NE555 chip U1 is respectively connected to surely
Press diode D10 anode, the one end capacitor C8, light emitting diode D11 cathode and the one end buzzer BZ2, the capacitor C8 other end and
The buzzer BZ2 other end is grounded；The resistance R10 other end is respectively connected to zener diode D10 cathode and resistance R11 mono-
End, the resistance R11 other end are connect with light emitting diode D11 anode.
4. protector according to claim 1 corresponds to power frequency supply route hunting device, which is characterized in that the receiver
Internal circuit further includes the signal anti-interference process module being set between signal amplification module and trigger module, and the signal is anti-dry
Disturbing processing module includes signal amplification unit, signal amplification factor adjustment unit, capacitor charging time control unit, charging holding
Unit and filter unit；And the signal anti-interference process module includes operational amplifier A1, operational amplifier A2, operational amplifier
A3, operational amplifier A4, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, capacitor
C9, capacitor C10, capacitor C11, capacitor C12 and capacitor C13, wherein the operational amplifier A1 reverse input end is respectively connected to
The one end resistance R12 and the one end resistance R15, operational amplifier A1 output end are respectively connected to the resistance R12 other end and resistance R13
One end；The resistance R15 other end is respectively connected to the one end resistance R16 and operational amplifier A2 reverse input end, which puts
Big device A2 output end is respectively connected to the resistance R16 other end and the one end resistance R17；The resistance R13 other end is respectively connected to
The one end resistance R14 and the one end capacitor C9, the capacitor C9 other end are respectively connected to the one end capacitor C10 and signal anti-interference process mould
Block output end, the capacitor C10 other end are respectively connected to the one end capacitor C11 and signal anti-interference process module output end, the electricity
Hold the C11 other end and is respectively connected to the resistance R17 other end and the one end resistance R18；The resistance R14 other end is respectively connected to electricity
Hold the one end C12 and operational amplifier A3 noninverting input, operational amplifier A3 reverse input end is respectively connected to operation amplifier
Device A3 output end and signal anti-interference process module output end；The resistance R18 other end be respectively connected to the one end capacitor C13 with
Operational amplifier A4 positive input, operational amplifier A4 reverse input end be respectively connected to operational amplifier A4 output end with
Signal anti-interference process module output end；The capacitor C12 other end is grounded with the capacitor C13 other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110288812A (en) * | 2019-06-26 | 2019-09-27 | 深圳市联讯通讯技术有限公司 | A kind of hunting tool for cable |
| CN110596511A (en) * | 2019-08-27 | 2019-12-20 | 和昊元(北京)科技有限公司 | Low-frequency pulse signal line searching system |
| CN111800315B (en) * | 2020-07-07 | 2022-04-15 | 东莞市天下智联实业有限公司 | Emitter and hunting appearance with prevent burning protect function |
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| CN101762828A (en) * | 2010-01-05 | 2010-06-30 | 林烨 | High-sensitivity non-contact line haunting method and device |
| CN104020494A (en) * | 2014-06-16 | 2014-09-03 | 雷鸣 | Novel line hunting method |
| CN203838282U (en) * | 2014-06-16 | 2014-09-17 | 雷鸣 | Novel non-contact hunting apparatus |
| CN104569859A (en) * | 2013-10-29 | 2015-04-29 | 国家电网公司 | AC power circuit tester |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011247839A (en) * | 2010-05-31 | 2011-12-08 | Hitachi-Ge Nuclear Energy Ltd | Cable search device |
| CN205724864U (en) * | 2016-04-29 | 2016-11-23 | 优利德科技(中国)有限公司 | A kind of protector correspondence power frequency supply circuit hunting device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101762828A (en) * | 2010-01-05 | 2010-06-30 | 林烨 | High-sensitivity non-contact line haunting method and device |
| CN104569859A (en) * | 2013-10-29 | 2015-04-29 | 国家电网公司 | AC power circuit tester |
| CN104020494A (en) * | 2014-06-16 | 2014-09-03 | 雷鸣 | Novel line hunting method |
| CN203838282U (en) * | 2014-06-16 | 2014-09-17 | 雷鸣 | Novel non-contact hunting apparatus |
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