CN107765066A - A kind of long-rod type clamp ammeter and its circuit analysis method - Google Patents
A kind of long-rod type clamp ammeter and its circuit analysis method Download PDFInfo
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- CN107765066A CN107765066A CN201710819412.1A CN201710819412A CN107765066A CN 107765066 A CN107765066 A CN 107765066A CN 201710819412 A CN201710819412 A CN 201710819412A CN 107765066 A CN107765066 A CN 107765066A
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Abstract
A kind of long-rod type clamp ammeter, including connecting rope, insulated telescopic rods, clamp ammeter gauge outfit, bottom are detachably connected with connector, electrically connected with operating platform；Connector, it is detachably connected with clamp ammeter gauge outfit, is fixedly connected with insulated telescopic rods；Insulate handle, is socketed with insulated telescopic rods bottom, is fixedly connected with operating platform；Operating platform, it is fixedly connected with insulation handle, is electrically connected by insulated telescopic rods hollow conductor with clamp ammeter gauge outfit.Insulated telescopic rods can arbitrarily adjust the collapsing length of needs, and gauge outfit can adjust direction, and display can clearly show that information will not be influenceed by angle.
Description
Technical field
The present invention relates to clamp ammeter field, and in particular to a kind of long-rod type clamp ammeter and its circuit analysis
Method.
Background technology
Growing with intelligent grid, taiwan area total security leakage tripping rate is the important indicator of intelligent grid, while
Lack fast and effectively detection leakage current means in real power network, leakage current can cause total earth leakage protective device to trip, and supply
Electricity is interrupted and caused any property loss, and malfunction elimination is even more time-consuming, laborious, costly.The daily investigation leak current fault generally use of power supply station
By one group of 2 people since the total leading-out terminal of power distribution cabinet, ascending stair, is sandwiched along wall line, then read with clamp on amperemeter on each node
The method of leakage current numerical value is taken to be judged.According to statistics, checklist taiwan area is leaked electricity, and averagely takes 2 hours.
This project realizes effectively and rapidly detection taiwan area total security leakage tripping leakage current.According to statistics, checklist taiwan area
Leaking electricity, one is i.e. operable, averagely takes 0.5 hour, and it is more than 4 times to improve operating efficiency, lifts Electric Power Marketing Management and excellent
Matter service level.
The Chinese U of publication CN 204945230, publication date on January 6th, 2016, utility model title is that one kind is stretched
Contracting formula clamp ammeter discloses a kind of telescopic clamp ammeter, and it is related to ammeter technical field, and electric current gauge outfit is arranged on
On shell, electromagnetic switch is installed in electric current gauge outfit, wireless transport module, wireless transport module and electric current are installed on shell
Gauge outfit is connected, and binding clip neck is provided with shell, and the upper end of expansion link is provided with screw, and screw connects with the internal thread hole on shell
Connect, installation groove is provided with the upside of current meter body, expansion link is installed in installation groove, is provided with current meter body distant
Control is switched, and radio display, the clamping piece of radio display and the buckling groove card of current meter body are provided with current meter body
Connect.
But its weak point is that portion of the handle is short, and it can not judge whether examined wire is powered, gauge outfit can only pass through
People, which walks about, shakes adjustment direction.
The content of the invention
The present invention be directed to above-mentioned portion of the handle is short, it is impossible to judge detect whether wire is powered, and gauge outfit can not be adjusted, propose
A kind of Chang'an city clamp ammeter solves the above problems.
A kind of long-rod type clamp ammeter, including connecting rope, insulated telescopic rods, clamp ammeter gauge outfit, bottom is with being connected
Device is detachably connected, and is electrically connected with operating platform；Connector, it is detachably connected with clamp ammeter gauge outfit, with insulated telescopic rods
It is fixedly connected；Insulate handle, is socketed with insulated telescopic rods bottom, is fixedly connected with operating platform；Operating platform, with the handle that insulate
It is fixedly connected, is electrically connected by insulated telescopic rods hollow conductor with clamp ammeter gauge outfit.
Expansion link is made using isolation material, can prevent that expansion link is conductive, and the socket of expansion link more piece is adjusted by socket place
Section device can accomplish any regulation.
Preferably, the connecting rope top section spaced set ball with teeth, coordinates transmission work, connection with bayonet socket gear
Rope top is detachably connected with secured core, and connecting rope afterbody is fixedly connected with insulation handle；Described clamp ammeter gauge outfit,
Including：Secured core, middle part are hinged with movable core, and middle part is fixedly connected with back-moving spring, and afterbody detachably connects with connector
Connect, afterbody is detachably connected with connecting rope, is electrically connected with sensor circuit；Movable core, middle part are hinged with secured core, middle part with
Back-moving spring is fixedly connected, and afterbody is fixedly connected with jaw motor；Electrical verification ferrule, for determining power failure equipments or power failure
Wire whether no-voltage, be installed on movable core head, be fixedly connected with movable core, electrically connected with pre-amplification circuit；Sense
Circuit is answered, is electrically connected with movable core, is electrically connected with secured core, is electrically connected with operating platform；Back-moving spring, with reset activity
Plunger position, it is fixedly connected with secured core, is fixedly connected with movable core；Bayonet socket gear, it is arranged at jaw motor biography
On moving axis, connection is engaged by bayonet socket gear with connecting rope, jaw motor, installed in movable core afterbody, driven with motor
Dynamic circuit electrical connection；Motor-drive circuit, for driving jaw motor, electrically connected with operating platform.
Clamp ammeter gauge outfit folding is controlled by the way of tooth ball and bayonet socket gear cooperating, can be accomplished by motor
Rotate control and operating personnel pull the connection provided with tooth ball to control manually.The electrical verification ferrule being provided with iron core top, can be with
Before electric current is detected, whether powered wire is examined.
Preferably, described connector, in addition to：Gauge outfit fixator, for fixing clamp ammeter gauge outfit, with clamp
Ammeter gauge outfit is detachably connected, and is fixedly connected with angle demodulator；Opening is imported, is opened on expansion link fixator provided with importing
Mouthful, for importing connecting line, connecting rope, it is installed on expansion link fixator；Expansion link fixator, for fixed connection device and absolutely
Edge expansion link, is fixedly connected with angle demodulator, is socketed, is bolted to connection with insulated telescopic rods；Angle demodulator, use
In adjustment clamp ammeter gauge outfit direction, it is fixedly connected with gauge outfit fixator, is fixedly connected with expansion link fixator.
Gauge outfit fixator is detachably connected with secured core afterbody by the realization that is spirally connected.Angle demodulator can adjust gauge outfit
Angle between fixator and expansion link fixator reaches the purpose in regulation clamp ammeter gauge outfit direction.The importing being provided with is opened
Mouthful, connecting rope and connecting wire can be by openings from insulated telescopic rods intermediate traces.
Preferably, described operating platform, including：MCU, with battery, controller, display screen, WIFI module, bluetooth
Module, buzzer, GPS module, pre-amplification circuit electrical connection；Battery, electrically connected with MCU；Display screen, electrically connected with MCU；
Controller, electrically connected with MCU；GPS module, ground location information is detected for recording, is electrically connected with MCU；WIFI module, for
Smart mobile phone WIFI is connected as smart mobile phone and provides ammeter detection information, is electrically connected with MCU；Bluetooth module, for intelligence
Bluetooth of mobile phone is connected as smart mobile phone and provides ammeter detection information, is electrically connected with MCU；Buzzer, for sending detection prompting
Sound, electrically connected with MCU.Pre-amplification circuit, for amplifying electric signal, electrically connect with electrical verification ferrule, electrically connected with MCU；
The current value operator that detected wire can be clearly indicated provided with display screen and controller on the operational platform can
To adjust clamp ammeter gauge outfit folding etc..
Preferably, described jaw motor uses synchronous motor.
Preferably, described connecting rope surface scribbles insulating materials.It can prevent operating personnel from getting an electric shock.
A kind of circuit analysis method：
M1：When staff arrives at detection site, open long-rod type clamp ammeter A and the WIFI frequency ranges of locality are once swept
Frequency analysis, confirm the minimum frequency range of an interference for this test frequency range；
M2：Make long-rod type clamp ammeter A carry out WIFI with long-rod type clamp ammeter B to be connected, gradually pull open long-rod type clamp
The distance between ammeter, the actual interference situation of frequency range selected by detection locality；
M3：The maximum transmission distance in open field of WiFi module built in long-rod type clamp ammeter acquiescence is for 50 meters more than 50
Rice signal can produce distortion and the problems such as packet loss and UNICOM's interruption occurs, according to environmental density meter in having the environment of building or trees
Signal is calculated, will be decayed 4dB by wood materials, will be decayed 8-15dB according to thickness difference by brick wall signal, and be mixed by reinforcing bar
Solidifying cob wall will decay 15-30dB, and average effective distance is 20 meters, co-channel interference in actual use also be present, should be prior
Confirm that co-channel interference size calculates actual interference dB, determined by the dB values of actual interference between long-rod type clamp ammeter
Set up distance；
M4：The point centered on taiwan area transformer, go out line inlet port around transformer and taiwan area detection is set up according to central place theory distribution
Point；
M5：Long-rod type clamp ammeter positioned at edge passes through the long-rod type between central point long-rod type clamp ammeter
Clamp ammeter carries out chain type and is connected to central point long-rod type clamp ammeter；
M6：Central point long-rod type clamp ammeter is also connected with smart mobile phone；
M7：Each test point long-rod type clamp ammeter is synchronously detected, and detection time 10s, the data detected pass through chain
Formula connection collects to smart mobile phone, and data are analyzed according to predetermined system to obtain electricity consumption trend and electric leakage trend；
M8：Deductive method is carried out to test point according to first time detection trend, test point is redistributed, is repeated once M7；
M9：Data analysis by comparing M7 and M8 draws relatively accurate trend data, and preserves and upload onto the server.
Excessive and actually detected distance is disturbed to be less than certain numerical value if described step M2 is surveyed, using following
Sub-step：
A1：Enable WiFi signal repeater as transmission node increase long-rod type clamp ammeter WiFi module communication away from
From；
A2：Reset calculate node and exclude repeater node；
A3：Manually recorded data and collect if enabling repeater and still can not exclude WIFI signal interference to central point long-rod type
Clamp ammeter.
If described step M4 produces, due to actual location, theory sets up detection without that can be distributed with not meeting center for standard
The problem of point, then perform following sub-step：
B1：The circuit that analysis taiwan area transformer goes out line inlet port and connected, block is not corresponded in theory with removing center for standard；
B2：Remaining block weight is redistributed according to transmission value size in the line wire body that comes in and goes out；
B3：Long-rod type clamp ammeter is distributed according to principle is dominated in central place theory.
Following sub-step is performed if the problem of burst in the detection interrupts：
C1：Due to being connected using chain type then in actually detected, the long-rod type clamp ammeter disconnecting of close central point is then
Influence whether the link of thus long-rod type clamp ammeter extension, detection signal breakpoint director's rod-type clamp ammeter；
C2：Long-rod type clamp ammeter to be measured is connected with smart mobile phone, prefabricated detection is carried out, is changed if detecting hardware problem
This long-rod type clamp ammeter is standby long-rod type clamp ammeter, and non-hardware problem then performs C3；
C3：It is past the long-rod type clamp ammeter of signal breakpoint and the upper level long-rod type clamp of this long-rod type clamp ammeter occur
Wifi signal repeaters are set up between ammeter and test whether to recover；
C4：The calculate node as caused by WiFi signal repeater is excluded in calculating process if recovering, is weighed if not recovering
Newly arrange the long-rod type clamp ammeter distributing position of this circuit.
The beneficial effects of the present invention are：Insulated telescopic rods can arbitrarily adjust the collapsing length of needs, and gauge outfit can be adjusted
Direction is saved, display can clearly show that information will not be influenceed by angle.
Brief description of the drawings
Fig. 1 structured flowcharts
Fig. 2 structural representations
In figure：1st, connecting rope, 2, insulated telescopic rods, 3, insulation handle, 4, clamp ammeter gauge outfit, 5, connector, 6, operation it is flat
Platform, 7, secured core, 8, movable core, 9, jaw motor, 10, back-moving spring, 11, bayonet socket gear, 12, electrical verification metal
Head, 13, sensor circuit, 14, motor-drive circuit, 15, gauge outfit fixator, 16, import opening, 17, expansion link fixator, 18,
Angle demodulator, 19, MCU, 20, bluetooth module, 21, GPS module, 22, controller, 23, pre-amplification circuit, 24, battery,
25th, display screen, 26, WIFI module, 27, buzzer, 28, tooth ball.
Embodiment
Below by specific embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.
Embodiment 1
A kind of long-rod type clamp ammeter, including connecting rope 1, insulated telescopic rods 2, clamp ammeter gauge outfit 4, clamp ammeter table
First 4 bottom is detachably connected with connector 5, is electrically connected with operating platform 6；Connector 5, top can with clamp ammeter gauge outfit 4
Dismantling connection, bottom are fixedly connected with insulated telescopic rods 2；Insulate handle 3, is socketed with the bottom of insulated telescopic rods 2, with operating platform
6 are fixedly connected；Operating platform 6, it is fixedly connected with insulation handle 3, passes through the hollow conductor of insulated telescopic rods 2 and clamp ammeter table
First 4 electrical connection.
The top section spaced set of connecting rope 1 ball 28 with teeth, coordinate transmission work, connecting rope 1 with bayonet socket gear 11
Top is detachably connected with secured core 7, and the afterbody of connecting rope 1 is fixedly connected with insulation handle 3；Described clamp ammeter gauge outfit
4, including：Secured core 7, middle part is be hinged with movable core 8, and middle part is fixedly connected with back-moving spring 10, and afterbody can with connector 5
Dismantling connection, afterbody are detachably connected with connecting rope 1, are electrically connected with sensor circuit 13；Movable core 8, middle part and secured core 7
Be hinged, middle part is fixedly connected with back-moving spring 10, and afterbody is fixedly connected with jaw motor 9；Electrical verification ferrule 12, for true
Determine power failure equipments or power failure wire whether no-voltage, be installed on the head of movable core 8, be fixedly connected with movable core 8, with operation
The pre-amplification circuit 23 of platform 6 electrically connects；Sensor circuit 13, electrically connect with movable core 8, electrically connected with secured core 7, with
The MCU19 electrical connections of operating platform 6；Back-moving spring 10, with the position of movable core 8 is resetted, it is fixedly connected with secured core 7, with
Movable core 8 is fixedly connected；Bayonet socket gear 11, is arranged on the power transmission shaft of jaw motor 9, passes through bayonet socket tooth with connecting rope 1
The engagement connection of wheel 11, jaw motor 9, installed in the afterbody of movable core 8, is electrically connected with motor-drive circuit 14；Motor drives
Dynamic circuit 14, for driving jaw motor 9, is electrically connected with the MCU19 of operating platform 6.
The folding of clamp ammeter gauge outfit 4 is controlled by the way of tooth ball 28 and the cooperating of bayonet socket gear 11, in normal work
In the case of work, connecting rope is driven to close clamp ammeter gauge outfit 4 by tasty gear, as jaw motor 9 breaks down,
Operating personnel can control clamp on amperemeter gauge outfit to close by the connecting rope being connected on insulation handle 3.
Described connector 5, in addition to：Gauge outfit fixator 15, for fixing clamp ammeter gauge outfit 4, with clamp electric current
The secured core 7 of table gauge outfit 4 is detachably connected, and is fixedly connected with angle demodulator 18；Opening 16 is imported, in expansion link fixator
17 are provided with importing opening 16, for importing connecting line, connecting rope 1, are installed on expansion link fixator 17；Expansion link fixator
17, for fixed connection device 5 and insulated telescopic rods 2, it is fixedly connected with angle demodulator 18, is socketed, passes through with insulated telescopic rods 2
Bolt is fixedly connected；Angle demodulator 18, for adjusting the direction of clamp ammeter gauge outfit 4, it is fixedly connected with gauge outfit fixator 15,
It is fixedly connected with expansion link fixator 17.
Gauge outfit fixator 15 is detachably connected with the afterbody of secured core 7 by the realization that is spirally connected.Angle demodulator 18 can be adjusted
Angle between section gauge outfit fixator 15 and expansion link fixator 17 reaches the purpose in the direction of regulation clamp ammeter gauge outfit 4.If
Some importing openings 16, connecting rope 1 and connecting wire can be by openings from the intermediate traces of insulated telescopic rods 2.
Described operating platform 6, including：MCU19, with battery 24, controller 22, display screen 25, WIFI module 26, indigo plant
Tooth module 20, buzzer 27, GPS module 21, pre-amplification circuit 23 electrically connect；Battery 24, is electrically connected with MCU19；Display
Screen 25, is electrically connected with MCU19；Controller 22, is electrically connected with MCU19；GPS module 21, ground location information is detected for recording, with
MCU19 is electrically connected；WIFI module 26, ammeter detection information is provided for being connected as smart mobile phone with smart mobile phone WIFI, with
MCU19 is electrically connected；Bluetooth module 20, ammeter detection information is provided for being connected as smart mobile phone with intelligent mobile phone Bluetooth, with
MCU19 is electrically connected；Buzzer 27, for sending detection prompt tone, electrically connected with MCU19.Pre-amplification circuit 23, for amplifying
Electric signal, electrically connect with electrical verification ferrule 12, electrically connected with MCU19.Described jaw motor 9 uses synchronous motor.Institute
The surface of connecting rope 1 stated scribbles insulating materials.
A kind of circuit analysis method：
M1：When staff arrives at detection site, open long-rod type clamp ammeter A and the WIFI frequency ranges of locality are once swept
Frequency analysis, confirm the minimum frequency range of an interference for this test frequency range；
M2：Make long-rod type clamp ammeter A carry out WIFI with long-rod type clamp ammeter B to be connected, gradually pull open long-rod type clamp
The distance between ammeter, the actual interference situation of frequency range selected by detection locality；
M3：The maximum transmission distance in open field of WiFi module built in long-rod type clamp ammeter acquiescence is for 50 meters more than 50
Rice signal can produce distortion and the problems such as packet loss and UNICOM's interruption occurs, according to environmental density meter in having the environment of building or trees
Signal is calculated, will be decayed 4dB by wood materials, will be decayed 8-15dB according to thickness difference by brick wall signal, and be mixed by reinforcing bar
Solidifying cob wall will decay 15-30dB, and average effective distance is 20 meters, co-channel interference in actual use also be present, should be prior
Confirm that co-channel interference size calculates actual interference dB, determined by the dB values of actual interference between long-rod type clamp ammeter
Set up distance；
M4：The point centered on taiwan area transformer, go out line inlet port around transformer and taiwan area detection is set up according to central place theory distribution
Point；
M5：Long-rod type clamp ammeter positioned at edge passes through the long-rod type between central point long-rod type clamp ammeter
Clamp ammeter carries out chain type and is connected to central point long-rod type clamp ammeter；
M6：Central point long-rod type clamp ammeter is also connected with smart mobile phone；
M7：Each test point long-rod type clamp ammeter is synchronously detected, and detection time 10s, the data detected pass through chain
Formula connection collects to smart mobile phone, and data are analyzed according to predetermined system to obtain electricity consumption trend and electric leakage trend；
M8：Deductive method is carried out to test point according to first time detection trend, test point is redistributed, is repeated once M7；
M9：Data analysis by comparing M7 and M8 draws relatively accurate trend data, and preserves and upload onto the server.
Excessive and actually detected distance is disturbed to be less than certain numerical value if described step M2 is surveyed, using following
Sub-step：
A1：Enable WiFi signal repeater as transmission node increase long-rod type clamp ammeter WiFi module communication away from
From；
A2：Reset calculate node and exclude repeater node；
A3：Manually recorded data and collect if enabling repeater and still can not exclude WIFI signal interference to central point long-rod type
Clamp ammeter.
If described step M4 produces, due to actual location, theory sets up detection without that can be distributed with not meeting center for standard
The problem of point, then perform following sub-step：
B1：The circuit that analysis taiwan area transformer goes out line inlet port and connected, block is not corresponded in theory with removing center for standard；
B2：Remaining block weight is redistributed according to transmission value size in the line wire body that comes in and goes out；
B3：Long-rod type clamp ammeter is distributed according to principle is dominated in central place theory.
Following sub-step is performed if the problem of burst in the detection interrupts：
C1：Due to being connected using chain type then in actually detected, the long-rod type clamp ammeter disconnecting of close central point is then
Influence whether the link of thus long-rod type clamp ammeter extension, detection signal breakpoint director's rod-type clamp ammeter；
C2：Long-rod type clamp ammeter to be measured is connected with smart mobile phone, prefabricated detection is carried out, is changed if detecting hardware problem
This long-rod type clamp ammeter is standby long-rod type clamp ammeter, and non-hardware problem then performs C3；
C3：It is past the long-rod type clamp ammeter of signal breakpoint and the upper level long-rod type clamp of this long-rod type clamp ammeter occur
Wifi signal repeaters are set up between ammeter and test whether to recover；
C4：The calculate node as caused by WiFi signal repeater is excluded in calculating process if recovering, is weighed if not recovering
Newly arrange the long-rod type clamp ammeter distributing position of this circuit.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, and difference is, the WiFi module and smart mobile phone used in the present embodiment
It is directly connected to, the smart mobile phone progress WiFi of each long-rod type clamp ammeter and respective holder are direct-connected；
Meanwhile the mobile phone being connected by WiFi with long-rod type clamp ammeter is also by 4G network connections to same server；
Data in detection process detected by long-rod type clamp ammeter are sent to smart mobile phone by WiFi module, intelligent hand
Machine is sent data to server, server by 4G cell phone and calculates electricity consumption trend or electric leakage trend by combined data and protect
Deposit the smart mobile phone sent back in network.
Claims (10)
1. a kind of long-rod type clamp ammeter, including connecting rope and insulated telescopic rods, it is characterised in that also include：
Clamp ammeter gauge outfit, bottom are detachably connected with connector, are electrically connected with operating platform；
Connector, it is detachably connected with clamp ammeter gauge outfit, is fixedly connected with insulated telescopic rods；
Insulate handle, is socketed with insulated telescopic rods bottom, is fixedly connected with operating platform；
Operating platform, it is fixedly connected with insulation handle, is electrically connected by insulated telescopic rods hollow conductor with clamp ammeter gauge outfit.
2. a kind of long-rod type clamp ammeter according to claim 1, it is characterised in that between described connecting rope top section etc.
Away from ball with teeth is set, coordinate transmission work with bayonet socket gear, be detachably connected at the top of connecting rope with secured core, connecting rope afterbody
It is fixedly connected with insulation handle；
Described clamp ammeter gauge outfit, including：
Secured core, middle part are hinged with movable core, and middle part is fixedly connected with back-moving spring, and afterbody detachably connects with connector
Connect, afterbody is detachably connected with connecting rope, is electrically connected with sensor circuit；
Movable core, middle part are hinged with secured core, and middle part is fixedly connected with back-moving spring, and afterbody is fixed with jaw motor
Connection；
Electrical verification ferrule, for determine power failure equipments or power failure wire whether no-voltage, movable core head is installed on, with activity
Iron core is fixedly connected, and is electrically connected with operating platform；
Sensor circuit, electrically connect with movable core, electrically connected with secured core, electrically connected with operating platform；
Back-moving spring, with movable core position is resetted, it is fixedly connected with secured core, is fixedly connected with movable core；
Bayonet socket gear, it is arranged on jaw motor power transmission shaft, connection is engaged by bayonet socket gear with connecting rope；
Jaw motor, installed in movable core afterbody, electrically connected with motor-drive circuit；
Motor-drive circuit, for driving jaw motor, electrically connected with operating platform.
A kind of 3. long-rod type clamp ammeter according to claim 1, it is characterised in that described connector, in addition to：
Gauge outfit fixator, for fixing clamp ammeter gauge outfit, it is detachably connected with clamp ammeter gauge outfit, with angle demodulator
It is fixedly connected；
Opening is imported, is provided with expansion link fixator and imports opening, for importing connecting line, connecting rope, be installed on expansion link
On fixator；
Expansion link fixator, for fixed connection device and insulated telescopic rods, it is fixedly connected with angle demodulator, with insulated telescopic rods
Socket, is bolted to connection；
Angle demodulator, for adjusting clamp ammeter gauge outfit direction, it is fixedly connected with gauge outfit fixator, with expansion link fixator
It is fixedly connected.
A kind of 4. long-rod type clamp ammeter according to claim 1, it is characterised in that described operating platform, including：
MCU, with battery, controller, display screen, WIFI module, bluetooth module, buzzer, GPS module, pre-amplification circuit
Electrical connection；
Battery, electrically connected with MCU；
Display screen, electrically connected with MCU；
Controller, electrically connected with MCU；
GPS module, ground location information is detected for recording, is electrically connected with MCU；
WIFI module, ammeter detection information is provided for being connected as smart mobile phone with smart mobile phone WIFI, is electrically connected with MCU；
Bluetooth module, ammeter detection information is provided for being connected as smart mobile phone with intelligent mobile phone Bluetooth, is electrically connected with MCU；
Buzzer, for sending detection prompt tone, electrically connected with MCU；
Pre-amplification circuit, for amplifying electric signal, electrically connect with electrical verification ferrule, electrically connected with MCU.
5. a kind of long-rod type clamp ammeter according to claim 2, it is characterised in that described jaw motor is
Synchronous motor.
6. a kind of long-rod type clamp ammeter according to claim 1, it is characterised in that described connecting rope surface scribbles
Insulating barrier.
A kind of 7. circuit analysis method, suitable for the long-rod type clamp ammeter described in claim 1, it is characterised in that：
M1：When staff arrives at detection site, open long-rod type clamp ammeter A and the WIFI frequency ranges of locality are once swept
Frequency analysis, confirm the minimum frequency range of an interference for this test frequency range；
M2：Make long-rod type clamp ammeter A carry out WIFI with long-rod type clamp ammeter B to be connected, gradually pull open long-rod type clamp
The distance between ammeter, the actual interference situation of frequency range selected by detection locality；
M3：The maximum transmission distance in open field of WiFi module built in long-rod type clamp ammeter acquiescence is for 50 meters more than 50
Rice signal can produce distortion and the problems such as packet loss and UNICOM's interruption occurs, according to environmental density meter in having the environment of building or trees
Signal is calculated, will be decayed 4dB by wood materials, will be decayed 8-15dB according to thickness difference by brick wall signal, and be mixed by reinforcing bar
Solidifying cob wall will decay 15-30dB, and average effective distance is 20 meters, co-channel interference in actual use also be present, should be prior
Confirm that co-channel interference size calculates actual interference dB, determined by the dB values of actual interference between long-rod type clamp ammeter
Set up distance；
M4：The point centered on taiwan area transformer, go out line inlet port around transformer and taiwan area detection is set up according to central place theory distribution
Point；
M5：Long-rod type clamp ammeter positioned at edge passes through the long-rod type between central point long-rod type clamp ammeter
Clamp ammeter carries out chain type and is connected to central point long-rod type clamp ammeter；
M6：Central point long-rod type clamp ammeter is also connected with smart mobile phone；
M7：Each test point long-rod type clamp ammeter is synchronously detected, and detection time 10s, the data detected pass through chain
Formula connection collects to smart mobile phone, and data are analyzed according to predetermined system to obtain electricity consumption trend and electric leakage trend；
M8：Deductive method is carried out to test point according to first time detection trend, test point is redistributed, is repeated once M7；
M9：Data analysis by comparing M7 and M8 draws relatively accurate trend data, and preserves and upload onto the server.
8. a kind of circuit analysis method according to claim 1, it is characterised in that disturbed if described step M2 is surveyed
Big and actually detected distance can not be less than certain numerical value, then using following sub-step：
A1：Enable WiFi signal repeater as transmission node increase long-rod type clamp ammeter WiFi module communication away from
From；
A2：Reset calculate node and exclude repeater node；
A3：Manually recorded data and collect if enabling repeater and still can not exclude WIFI signal interference to central point long-rod type
Clamp ammeter.
9. a kind of circuit analysis method according to claim 1, it is characterised in that if described step M4 is produced due to reality
Theory without that can be distributed the problem of setting up test point, then performs following sub-step with not meeting center for standard in border place：
B1：The circuit that analysis taiwan area transformer goes out line inlet port and connected, block is not corresponded in theory with removing center for standard；
B2：Remaining block weight is redistributed according to transmission value size in the line wire body that comes in and goes out；
B3：Long-rod type clamp ammeter is distributed according to principle is dominated in central place theory.
10. a kind of circuit analysis method according to claim 1, it is characterised in that if burst interrupts in the detection
The problem of then perform following sub-step：
C1：Due to being connected using chain type then in actually detected, the long-rod type clamp ammeter disconnecting of close central point is then
Influence whether the link of thus long-rod type clamp ammeter extension, detection signal breakpoint director's rod-type clamp ammeter；
C2：Long-rod type clamp ammeter to be measured is connected with smart mobile phone, prefabricated detection is carried out, is changed if detecting hardware problem
This long-rod type clamp ammeter is standby long-rod type clamp ammeter, and non-hardware problem then performs C3；
C3：It is past the long-rod type clamp ammeter of signal breakpoint and the upper level long-rod type clamp of this long-rod type clamp ammeter occur
WiFi signal repeater is set up between ammeter and tests whether to recover；
C4：The calculate node as caused by WiFi signal repeater is excluded in calculating process if recovering, is weighed if not recovering
Newly arrange the long-rod type clamp ammeter distributing position of this circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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