CN106405327A - Signal detector having data processing function - Google Patents

Signal detector having data processing function Download PDF

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Publication number
CN106405327A
CN106405327A CN201610779295.6A CN201610779295A CN106405327A CN 106405327 A CN106405327 A CN 106405327A CN 201610779295 A CN201610779295 A CN 201610779295A CN 106405327 A CN106405327 A CN 106405327A
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CN
China
Prior art keywords
signal
data processing
chip
processing function
detection instrument
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.)
Pending
Application number
CN201610779295.6A
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Chinese (zh)
Inventor
周峰
曹骏骅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Safe Electronics Co Ltd
Original Assignee
Anhui Safe Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Safe Electronics Co Ltd filed Critical Anhui Safe Electronics Co Ltd
Priority to CN201610779295.6A priority Critical patent/CN106405327A/en
Publication of CN106405327A publication Critical patent/CN106405327A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks

Abstract

The invention relates to a signal detector having a data processing function. A double-frequency signal generator, an operational amplifier and a signal processor arranged in the signal detector are connected in turn. The signal processor comprises three chip units of a data storage chip, a data processing chip and a data display chip. A homologous filter is connected with the signal processor, and a short circuit sensor of the tail end is connected with the homologous filter. Current signals of two frequencies are used so that the signal detector can be used in different circuit environments, and misjudgment caused by the influence of long line distributed capacitance can be overcome; a copper core is used as the core part of the short circuit sensor so that the speed of electric signal conduction can be enhanced and loss of the signal can be reduced; and the three data chips in the signal processor can complete the whole process of storage, processing and display of the signal data so that the workflow can be greatly simplified and the detection efficiency of the signal data can be increased.

Description

A kind of signal detection instrument possessing data processing function
Technical field
The present invention relates to field of fault detection, more particularly, to a kind of signal detection instrument possessing data processing function.
Background technology
At present, the failure problems in operation of power networks happen occasionally, but the detection currently for circuit again extremely difficult and Dangerous.Since the beginning of the eighties in last century, through continuous research and probe, released one after another different detection methods and product for China Product.Mainly there are following several types at present:(1)In circuit after being occurred by the use of earth fault, the variable quantity of electric parameter is as diagnosis Criterion.(2)The method of signal injection.But said method all has the inherent shortcoming of itself, such as, operate inconvenience, cannot Data is processed, short trouble cannot in time detection etc..
Content of the invention
The technical problem to be solved is to provide a kind of signal detection instrument possessing data processing function, this signal Survey meter not only possesses data processing function, and can strengthen the speed of signal of telecommunication conduction, reduces the loss of signal.
For solving above-mentioned technical problem, a kind of signal detection instrument possessing data processing function of the present invention, including double frequency letter Number generator, operational amplifier, signal processor, same to source filter, short-circuit sensor, the double frequency letter in described signal detection instrument Number generator, operational amplifier, signal processor are sequentially connected, and wherein signal processor comprises pin-saving chip, at data Reason chip, three chip units of data display chip, be connected with signal processor with source filter, the short-circuit sensor of end and It is connected with source filter;Described short-circuit sensor comprises feeler, copper core, opening iron ring, four parts of induction coil.
The signal frequency of described two-frequency signal generator transmitting is 480 ~ 620MHz and 870 ~ 1000MHz.
The boosting scope of described operational amplifier is in 500V ~ 1200V.
Arrange successively from top to bottom in described signal processor pin-saving chip, data processing chip, data display Chip, data also order inflow and outflow according to this.
In described short-circuit sensor, as core component, it is shaped as the circle of 3/4ths, two ports to copper core Outwards respectively extend a feeler, opening iron ring is nested in copper core periphery, the copper that induction coil has been wrapped in opening iron ring nested On core.
Further, described feeler and the tangent line of copper core are in 90 ° of angles.
Further, described induction coil is wound around 8 ~ 10 circles in copper core.
Present invention uses the current signal of two kinds of frequencies, can use in different circuit environment, overcome long transmission line The erroneous judgement caused by impact of distribution capacity;This instrument utilizes short-circuit sensor and other devices, can be to short circuit trouble point It is accurately positioned, and short-circuit reason is judged;Short-circuit sensor is used copper core as core component, enhances the signal of telecommunication The speed of conduction, reduces the loss of signal;Three data chips in signal processor can complete signal data storage, The overall process processing, showing, enormously simplify workflow, increased the detection efficiency of signal data.
Brief description
Fig. 1 is a kind of structural representation of the signal detection instrument possessing data processing function of the present invention;
Fig. 2 is the structural representation of short-circuit sensor in the present invention.
In figure, 1- two-frequency signal generator, 2- operational amplifier, 3- signal processor, the same source filter of 4-, 5- short circuit passes Sensor, 11- pin-saving chip, 12- data processing chip, 13- data display chip, 21- feeler, 22- copper core, 23- opening Iron ring, 24- induction coil.
Specific embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
As shown in figure 1, a kind of signal detection instrument possessing data processing function, put including two-frequency signal generator 1, computing Big device 2, signal processor 3, with source filter 4, short-circuit sensor 5, two-frequency signal generator 1 in described signal detection instrument, Operational amplifier 2, signal processor 3 are sequentially connected, and wherein signal processor 3 comprises pin-saving chip 11, data processing core Piece 12,13 3 chip units of data display chip, are connected with signal processor 3 with source filter 4, the short-circuit sensor of end 5 are connected with same source filter 4.After double frequency current signal source sends through two-frequency signal generator 1, through operational amplifier 2 Supercharging is amplified, and flows into signal processor 3, pin-saving chip 11, data processing chip 12, data display in signal processor 3 Chip 13 is stored to data successively, processed and is shown, and can be to the garbage signal in signal and interference letter with source filter 4 Number filtered, last permissible short circuit trouble point is accurately positioned of short-circuit sensor 5, and short-circuit reason is sentenced Disconnected.
The signal frequency of described two-frequency signal generator 1 transmitting is 480 ~ 620MHz and 870 ~ 1000MHz;Described computing is put The boosting scope of big device 2 is in 500V ~ 1200V;Arrange successively from top to bottom in signal processor 3 pin-saving chip 11, number According to process chip 12, data display chip 13, data also order inflow and outflow according to this.
As shown in Fig. 2 described short-circuit sensor 5 comprises feeler 21, copper core 22, opening iron ring 23, induction coil 24 4 Part, in short-circuit sensor 5, as core component, it is shaped as the circle of 3/4ths to copper core 22, and two ports are outside Respectively extend a feeler 21, opening iron ring 23 is nested in copper core 22 periphery, induction coil 24 has been wrapped in opening iron ring nested In 23 copper core 22;Feeler 21 is in 90 ° of angles with the tangent line of copper core 22;Induction coil 24 is wound around 8 ~ 10 circles in copper core 22.Copper Core 22 selects copper can strengthen the speed of signal of telecommunication conduction as conducting medium, reduces the loss of signal, the opening iron ring of periphery 23 can ensure that stablizing of signal transmission, and induction coil 24 can be determined that trouble point using electromagnetic induction principle through data conversion Position.
Signal detection instrument is different with the impedance property of non-fault line based on faulty line, two kinds of frequencies is presented different Impedance, so that the signal code of two kinds of frequencies has different ratios, thus has different ratios as criterion using signal code, Rapidly and accurately carry out earth fault line selection and localization of fault, and detect short trouble with same criterion.

Claims (7)

1. a kind of signal detection instrument possessing data processing function, including two-frequency signal generator(1), operational amplifier(2), letter Number processor(3), same to source filter(4), short-circuit sensor(5)It is characterised in that:Two-frequency signal in described signal detection instrument Generator(1), operational amplifier(2), signal processor(3)It is sequentially connected, wherein signal processor(3)Including data storage core Piece(11), data processing chip(12), data display chip(13)Three chip units, same to source filter(4)With signal processing Device(3)It is connected, the short-circuit sensor of end(5)With same source filter(4)It is connected;Described short-circuit sensor(5)Including feeler (21), copper core(22), opening iron ring(23), induction coil(24)Four parts.
2. the signal detection instrument possessing data processing function according to claim 1 it is characterised in that:Described two-frequency signal Generator(1)The signal frequency of transmitting is 480 ~ 620MHz and 870 ~ 1000MHz.
3. the signal detection instrument possessing data processing function according to claim 1 it is characterised in that:Described operation amplifier Device(2)Boosting scope in 500V ~ 1200V.
4. the signal detection instrument possessing data processing function according to claim 1 it is characterised in that:Described signal processing Device(3)In arrange successively from top to bottom pin-saving chip(11), data processing chip(12), data display chip(13).
5. the signal detection instrument possessing data processing function according to claim 1 it is characterised in that:Described short circuit sensing Device(5)Middle copper core(22)As core component, it is shaped as the circle of 3/4ths, and two ports outwards respectively extend one Individual feeler(21), opening iron ring(23)It is nested in copper core(22)Periphery, induction coil(24)It has been wrapped in opening iron ring nested (23)Copper core(22)On.
6. the signal detection instrument possessing data processing function according to claim 1 it is characterised in that:Described feeler(21) With copper core(22)Tangent line be in 90 ° of angles.
7. the signal detection instrument possessing data processing function according to claim 1 it is characterised in that:Described induction coil (24)In copper core(22)Upper winding 8 ~ 10 circle.
CN201610779295.6A 2016-08-31 2016-08-31 Signal detector having data processing function Pending CN106405327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610779295.6A CN106405327A (en) 2016-08-31 2016-08-31 Signal detector having data processing function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610779295.6A CN106405327A (en) 2016-08-31 2016-08-31 Signal detector having data processing function

Publications (1)

Publication Number Publication Date
CN106405327A true CN106405327A (en) 2017-02-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610779295.6A Pending CN106405327A (en) 2016-08-31 2016-08-31 Signal detector having data processing function

Country Status (1)

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CN (1) CN106405327A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101572447A (en) * 2009-02-25 2009-11-04 艾欧史密斯电气产品(苏州)有限公司 Electric machine rotor
CN103344884A (en) * 2013-07-11 2013-10-09 杜海滨 Electricity overhead line fault two-frequency-signal detecting positioning method and dedicated position indicator thereof
CN203561722U (en) * 2013-07-11 2014-04-23 杜海滨 Two-frequency signal detection position indicator for electricity overhead line

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101572447A (en) * 2009-02-25 2009-11-04 艾欧史密斯电气产品(苏州)有限公司 Electric machine rotor
CN103344884A (en) * 2013-07-11 2013-10-09 杜海滨 Electricity overhead line fault two-frequency-signal detecting positioning method and dedicated position indicator thereof
CN203561722U (en) * 2013-07-11 2014-04-23 杜海滨 Two-frequency signal detection position indicator for electricity overhead line

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
束洪春等: "树状配电网相间短路的双频法故障诊断", 《自动化学报》 *

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Application publication date: 20170215