CN106443151B - A kind of line analyzer - Google Patents
A kind of line analyzer Download PDFInfo
- Publication number
- CN106443151B CN106443151B CN201610510357.3A CN201610510357A CN106443151B CN 106443151 B CN106443151 B CN 106443151B CN 201610510357 A CN201610510357 A CN 201610510357A CN 106443151 B CN106443151 B CN 106443151B
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- circuit
- operating condition
- interface
- route
- microprocessor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R13/00—Arrangements for displaying electric variables or waveforms
- G01R13/02—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form
- G01R13/0209—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form in numerical form
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention discloses a kind of line analyzers, comprising: current detection circuit, route operating condition setting circuit, microprocessor and analog-to-digital conversion sample circuit.Analyzer is equipped with first interface and second interface, is respectively used to access signal wire；Current detection circuit and route operating condition setting circuit are serially connected between first interface and second interface；One sampling of analog-to-digital conversion sample circuit is terminated at first interface, and another sampling is terminated at second interface；Microprocessor is connected to current detection circuit and analog-to-digital conversion sample circuit；And microprocessor is connected to route operating condition setting circuit.Line analyzer of the invention is equipped with route operating condition and circuit is arranged, and various working state can be set, convenient for analyzing the variation of signal line signal under different operating conditions, to analyze and research.
Description
Technical field
The present invention relates to signal measurement analysis field, in particular to a kind of line analyzer.
Background technique
Traditional instrument and meter only can measure voltage, electric current, waveform in route, and can not be directly changed route itself
State needs to access resistance by outside, or carry out processing repacking to route to analyze the signal under different operating conditions
Voltage current waveform data, it is complicated for operation, the equipment and instrument of test line operating condition can be easily directly changed without one kind.
Summary of the invention
The purpose of the present invention is to provide a kind of multi-functional line analyzer, the line analyzer is equipped with route operating condition
Circuit is set, various working state can be set, convenient for analyzing the variation of signal line signal under different operating conditions, thus into
Row analysis and research.
In the present invention, a kind of line analyzer is provided, comprising: current detection circuit, route operating condition setting circuit, micro-
Processor and analog-to-digital conversion sample circuit；
The analyzer is equipped with first interface and second interface, is respectively used to access signal wire；
The current detection circuit and route operating condition setting circuit are serially connected between the first interface and second interface；
One sampling of the analog-to-digital conversion sample circuit is terminated at the first interface, and another sampling is terminated at described second
Interface；
The current detection circuit is connected to the microprocessor, for transmitting current detecting knot to the microprocessor
Fruit；
The analog-to-digital conversion sample circuit is connected to the microprocessor, for transmitting voltage sample to the microprocessor
As a result；And
The microprocessor is connected to the route operating condition setting circuit, for controlling the route operating condition setting circuit.
Compared with prior art, the main distinction and its effect are embodiment of the present invention:
Various working state can be set in the route operating condition setting circuit, convenient for analysis signal line in different operating conditions
The variation of lower signal, to analyze and research；
The analyzer is equipped with first interface and second interface, can be respectively connected to signal wire；
The analyzer is equipped with analog-to-digital conversion sample circuit, can sample to electric current and voltage；
The current detection circuit is connected to the microprocessor, can transmit current detecting knot to the microprocessor
Fruit；
The analog-to-digital conversion sample circuit is connected to the microprocessor, can transmit voltage sample to the microprocessor
As a result；
The microprocessor is connected to the route operating condition setting circuit, can control the route operating condition setting circuit.
Further, the current detection circuit and analog-to-digital conversion sample circuit are replaced with to the mould of comparative maturity on the market
Block can greatly improve the working efficiency of equipment, guarantee certain accuracy rate.
Further, the route operating condition setting circuit includes the first midget relay, and signal open circuit operating condition can be set.
Further, the route operating condition setting circuit includes the first digital regulation resistance, and series resistance operating condition can be set.
Further, the route operating condition setting circuit includes the second midget relay, and parallel resistance operating condition can be set
Or Short-circuit Working Condition.
Further, the route operating condition setting circuit includes the second digital regulation resistance, and parallel resistance operating condition can be set.
Further, the analog-to-digital conversion sample circuit includes: voltage follower circuit, gear circuit and two-way analog-to-digital conversion
Chip, it is ensured that sampling precision.
Further, the current detection circuit includes: power resistor and current detecting chip, be can detecte on signal wire
By electric current.
Further, the microprocessor connects the touch display screen, can receive from the touch display screen
Input signal, and control the touch display screen and show user interface.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the line analyzer in first embodiment of the invention；
Fig. 2 is the structural schematic diagram of the line analyzer in third embodiment of the invention；
Fig. 3 is the structural schematic diagram of the line analyzer in four embodiment of the invention；
Fig. 4 is the structural schematic diagram of the line analyzer in fifth embodiment of the invention；
Fig. 5 is the structural schematic diagram of the line analyzer in sixth embodiment of the invention；
Fig. 6 is the structural schematic diagram at the data interaction interface of the line analyzer in sixth embodiment of the invention；
Fig. 7 is the structural schematic diagram of the waveform interactive interface of the line analyzer in sixth embodiment of the invention；
Fig. 8 is the structural schematic diagram of the operating condition setting interactive interface of the line analyzer in sixth embodiment of the invention；
Fig. 9 is the structural schematic diagram of the operating condition setting interactive interface of the line analyzer in seventh embodiment of the invention.
Specific embodiment
In the following description, in order to make the reader understand this application better, many technical details are proposed.But this
The those of ordinary skill in field is appreciated that even if without these technical details and many variations based on the following respective embodiments
And modification, each claim of the application technical solution claimed can also be realized.
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to implementation of the invention
Mode is described in further detail.
First embodiment of the invention is related to a kind of line analyzer, and Fig. 1 is the structural schematic diagram of the line analyzer.
As shown, the line analyzer includes: current detection circuit 1, route operating condition setting circuit 2, microprocessor 3
With analog-to-digital conversion sample circuit 4.
The analyzer is equipped with first interface 5 and second interface 6, is respectively used to access signal wire.
The current detection circuit 1 and route operating condition setting circuit are serially connected between the first interface 5 and second interface 6
2。
One sampling of the analog-to-digital conversion sample circuit 4 is terminated at the first interface 5, and another sampling is terminated at described the
Two interfaces 6.
The current detection circuit 1 is connected to the microprocessor 3, for transmitting current detecting to the microprocessor 3
As a result.
The analog-to-digital conversion sample circuit 4 is connected to the microprocessor 3, for transmitting voltage to the microprocessor 3
Sampled result.
The microprocessor 3 is connected to the route operating condition setting circuit 2, for controlling the route operating condition setting circuit
2。
In present embodiment, the work condition state that the route operating condition setting circuit 2 is arranged includes: that signal is breaking, signal is short
Road, signal break on-off, series resistance and parallel resistance.
In present embodiment, various working state is can be set in the route operating condition setting circuit 2, convenient for analysis signal wire
The variation of road signal under different operating conditions, to analyze and research；
The analyzer is equipped with first interface 5 and second interface 6, can be respectively connected to signal wire；
The analyzer is equipped with analog-to-digital conversion sample circuit 4, can sample to electric current and voltage；
The current detection circuit 1 is connected to the microprocessor 3, can transmit current detecting to the microprocessor 3
As a result；
The analog-to-digital conversion sample circuit 4 is connected to the microprocessor 3, can transmit voltage to the microprocessor 3
Sampled result；
The microprocessor 3 is connected to the route operating condition setting circuit 2, can control the route operating condition setting circuit
2。
Second embodiment of the invention is related to a kind of line analyzer.
Second embodiment is improved on the basis of first embodiment, is mainly theed improvement is that: will be described
Current detection circuit 1 and analog-to-digital conversion sample circuit 4 replace with the module of comparative maturity on the market, can greatly improve equipment
Working efficiency guarantees certain accuracy rate.
Specifically:
The current detection circuit 1 replaces with multimeter circuit module.
The analog-to-digital conversion sample circuit 4 replaces with oscillograph circuit module.
The microprocessor 3 uses STM32F103ZET6 for main control processor.
Third embodiment of the invention is related to a kind of line analyzer, and Fig. 2 is the structural schematic diagram of the line analyzer.
As shown, third embodiment is improved on the basis of first embodiment, main improvements exist
In: the route operating condition setting circuit 2 includes the first midget relay 7, and signal open circuit operating condition can be set；The route operating condition
It includes the first digital regulation resistance 8 that circuit 2, which is arranged, and series resistance operating condition can be set.
Specifically:
The route operating condition setting circuit 2 includes: the first midget relay 7, is used for setting signal open circuit operating condition, and described
First midget relay 7 is serially connected between the current detection circuit 1 and the second interface 6.
The route operating condition setting circuit 2 includes: the first digital regulation resistance 8, for series resistance operating condition to be arranged, and it is described
First digital regulation resistance 8 is serially connected between first midget relay 7 and the second interface 6.
In present embodiment, the microprocessor 3 is by controlling first midget relay 7, Lai Shixian line broken circuit
Operating condition；On-off frequency of the microprocessor 3 by control first midget relay 7, the intermittent open circuit of Lai Shixian route
Operating condition；The microprocessor 3 carrys out analog line because resistance value becomes larger by the change in resistance of control first digital regulation resistance 8
Caused by signal intensity；The microprocessor 3 is come real by the change in resistance frequency of control first digital regulation resistance 8
The existing intermittent series resistance operating condition of route.
Four embodiment of the invention is related to a kind of line analyzer, and Fig. 3 is the structural schematic diagram of the line analyzer.
As shown, the 4th embodiment is improved on the basis of third embodiment, main improvements exist
In: the route operating condition setting circuit 2 includes the second midget relay 10, and parallel resistance operating condition or Short-circuit Working Condition can be set；
The route operating condition setting circuit 2 includes the second digital regulation resistance 11, and parallel resistance operating condition can be set.
Specifically:
The analyzer is equipped with reference voltage interface 9, for connecting external reference voltage signal.
The route operating condition setting circuit 2 includes: the second midget relay 10, for parallel resistance operating condition or short circuit to be arranged
Operating condition.
Described second midget relay, 10 one end is connected in series in the reference voltage interface 9, and the other end is connected in parallel in
The current detection circuit 1.
The reference voltage signal is earth signal.
The route operating condition setting circuit 2 includes: the second digital regulation resistance 11, for parallel resistance operating condition, and institute to be arranged
The second digital regulation resistance 11 is stated to be serially connected between second midget relay 10 and the reference voltage interface 9.
In present embodiment, the microprocessor 3 is by controlling 10 on-off of the second midget relay, Lai Shixian route
Short-circuit Working Condition；For the microprocessor 3 by controlling the 10 on-off frequency of the second midget relay, Lai Shixian route intermittence is short
Road operating condition；The microprocessor 3 carrys out analog line because resistance value becomes smaller by controlling 11 change in resistance of the second digital regulation resistance
Caused by signal intensity；The microprocessor 3 is by controlling the 11 change in resistance frequency of the second digital regulation resistance, Lai Shixian
The intermittent parallel resistance operating condition of route.
Fifth embodiment of the invention is related to a kind of line analyzer, and Fig. 4 is the structural schematic diagram of the line analyzer.
As shown, the 5th embodiment is improved on the basis of four embodiments, main improvements exist
In: the analog-to-digital conversion sample circuit 4 includes: voltage follower circuit, gear circuit and two-way modulus conversion chip 16, Ke Yibao
Demonstrate,prove sampling precision；The current detection circuit 1 includes: power resistor 17 and current detecting chip 18, be can detecte on signal wire
By electric current.
Specifically:
The analog-to-digital conversion sample circuit 4 includes: that first voltage follows circuit 12, second voltage to follow circuit 13, first
Gear circuit 14, the second gear circuit 15 and two-way modulus conversion chip 16.
One end of first gear circuit 14 is connected to the first voltage and follows circuit 12, and the other end is connected to described
Two-way modulus conversion chip 16.
Described second gear circuit, 15 one end is connected to the two-way modulus conversion chip 16, and the other end is connected to described
Two voltage follower circuits 13.
The first voltage follows 12 one end of circuit to be connected to the first interface 5, and the other end is connected to described first grade
Position circuit 14.
The second voltage follows 13 one end of circuit to be connected to the second interface 6, and the other end is connected to the second gear
Position circuit 15.
The current detection circuit 1 includes: power resistor 17 and current detecting chip 18.
The power resistor 17 is serially connected between the first interface 5 and route operating condition setting circuit 2.
The current detecting chip 18 is in parallel with the power resistor 17.
17 resistance value of power resistor is 0.1 ohm -0.4 ohm, and in present embodiment, 17 resistance value of power resistor is
0.3 ohm.
The current detecting chip 18 is using ACS712 as detection chip.
Sixth embodiment of the invention is related to a kind of line analyzer, and Fig. 5 is the structural schematic diagram of the line analyzer, figure
6 be the structural schematic diagram at the data interaction interface of the line analyzer, and Fig. 7 is the knot of the waveform interactive interface of the line analyzer
Structure schematic diagram, Fig. 8 are the structural schematic diagrams of the operating condition setting interactive interface of the line analyzer.
As shown in figure 5, sixth embodiment is improved on the basis of five embodiments, main improvements exist
In: the analyzer further includes touch display screen 19, and the microprocessor 3 connects the touch display screen 19, can receive and
From the input signal of the touch display screen 19, and controls the touch display screen 19 and show user interface 20.
Specifically:
The analyzer further includes touch display screen 19, is connect with the microprocessor 3, will be in the signal wire of required research
Between cut short after, the instrument connection that is respectively connected at left and right sides of the analyzer.
The microprocessor 3 is also used to receive the input signal from the touch display screen 19, and controls the touch
Display screen 19 shows user interface 20.
As shown in figs 6-8, the user interface 20 includes:
Data interaction interface, for showing route current voltage, the line current passed through and current line relative resistance；
Waveform interactive interface, for showing test point waveform and test line right side test point waveform on the left of test line；
Interactive interface is arranged in operating condition, for showing different types of route work condition state and under the route work condition state of part
Corresponding parameter setting.
Wherein, left side waveform is test point waveform on the left of test line in Fig. 7, and right side waveform is test on the right side of test line
Point waveform.
Seventh embodiment of the invention is related to a kind of line analyzer, and Fig. 9 is the operating condition setting interaction of the line analyzer
The structural schematic diagram at interface.
As shown, the 7th embodiment is improved on the basis of sixth embodiment, main improvements exist
In: under Part load state, the operating condition setting interactive interface shows corresponding parameter setting.
Specifically:
Under the signal break on-off work condition state, operating condition setting interactive interface shows the intermittent time and sets
It sets.
Under the series resistance work condition state, the operating condition setting interactive interface shows resistance setting.
Under the parallel resistance work condition state, the operating condition setting interactive interface shows resistance setting.
Eighth embodiment of the invention is related to a kind of application of line analyzer.
The line analyzer is connected using the line analyzer in embodiment seven and is accessed a cylinder point by present embodiment
Fiery signal line, and open circuit, shorted to earth, intermittent open circuit are arranged to route by instrument, it observes and records under different operating conditions
Voltage, electric current and Wave data and real vehicle fault signature.
As the result is shown: a cylinder ignition signal open circuit, phenomenon of the failure is car difficulty in starting, and engine shake is strict after starting
Evil；
One cylinder ignition signal shorted to earth, will cause engine and floods cylinder, cause car that can not start.
Ninth embodiment of the invention is related to a kind of application of line analyzer.
The line analyzer is connected using the line analyzer in embodiment seven and is accessed engine by present embodiment
Temperature sensor signal route, and open circuit, shorted to earth, intermittence open circuit, series resistance, simultaneously are arranged to route by instrument
Join resistance, observes and records voltage, electric current, Wave data and the real vehicle fault signature under different operating conditions.
As the result is shown: when breaking, engine coolant sensor signal is abnormal, resistance value distorted signals；
When short-circuit, the work of car cooling fan is abnormal, i.e., does not turn when this turns, but transported at a high speed when should not turning
Turn.
It should be noted that in the claim and specification of this patent, such as first and second or the like relationship
Term is only used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying
There are any actual relationship or orders between these entities or operation.Moreover, the terms "include", "comprise" or its
Any other variant is intended to non-exclusive inclusion so that include the process, methods of a series of elements, article or
Equipment not only includes those elements, but also including other elements that are not explicitly listed, or further include for this process,
Method, article or the intrinsic element of equipment.In the absence of more restrictions, being wanted by what sentence " including one " limited
Element, it is not excluded that there is also other identical elements in the process, method, article or apparatus that includes the element.
Although being shown and described to the present invention by referring to some of the preferred embodiment of the invention,
It will be understood by those skilled in the art that can to it, various changes can be made in the form and details, without departing from this hair
Bright spirit and scope.
Claims (6)
1. a kind of line analyzer characterized by comprising current detection circuit, route operating condition setting circuit, microprocessor and
Analog-to-digital conversion sample circuit；
The analyzer is equipped with first interface and second interface, is respectively used to access signal wire；
The current detection circuit and route operating condition setting circuit are serially connected between the first interface and second interface；
One sampling of the analog-to-digital conversion sample circuit is terminated at the first interface, and another sampling is terminated at described second and connects
Mouthful；
The current detection circuit is connected to the microprocessor, for transmitting current detecting result to the microprocessor；
The analog-to-digital conversion sample circuit is connected to the microprocessor, for transmitting voltage sample knot to the microprocessor
Fruit；And
The microprocessor is connected to the route operating condition setting circuit, for controlling the route operating condition setting circuit；Also,
The route operating condition setting circuit includes: the first midget relay, and first midget relay is disconnected for realizing route
Road operating condition, the microprocessor realize the intermittent breaking work of route by the on-off frequency of control first midget relay
Condition；
The route operating condition setting circuit includes: the first digital regulation resistance, and first digital regulation resistance is for being arranged series electrical
Operating condition is hindered, the microprocessor carrys out analog line because resistance value becomes larger by the change in resistance of control first digital regulation resistance
Caused by signal intensity；Change in resistance frequency of the microprocessor by control first digital regulation resistance, Lai Shixian
The intermittent series resistance operating condition of route；
The route operating condition setting circuit includes: the second midget relay, and second midget relay is for being arranged electricity in parallel
Hinder operating condition or Short-circuit Working Condition；The microprocessor is by controlling the second midget relay on-off, Lai Shixian line short work
Condition；The microprocessor is by controlling the second midget relay on-off frequency, Lai Shixian route intermittent shorts operating condition；Institute
Microprocessor is stated by the second digital regulation resistance change in resistance of control, carrys out analog line signal because caused by becoming smaller resistance value and becomes
Change；The microprocessor is by controlling the second digital regulation resistance change in resistance frequency, the intermittent parallel connection of Lai Shixian route
Resistance operating condition；Also, first midget relay is serially connected between the current detection circuit and the second interface；
First digital regulation resistance is serially connected between first midget relay and the second interface, or is serially connected with described
Between current detection circuit and first midget relay；
The analyzer is equipped with reference voltage interface, for connecting external reference voltage signal；
Second midget relay one end is connected in series in the reference voltage interface, and the other end is connected in parallel in the electric current
Detection circuit；
The analog-to-digital conversion sample circuit include: first voltage follow circuit, second voltage follow circuit, the first gear circuit,
Second gear circuit and two-way modulus conversion chip；
One end of first gear circuit is connected to the first voltage and follows circuit, and the other end is connected to the two-way modulus
Conversion chip；
The second gear circuit on one side is connected to the two-way modulus conversion chip, the other end be connected to the second voltage with
With circuit；
The first voltage follows circuit on one side to be connected to the first interface, and the other end is connected to first gear circuit；
And
The second voltage follows circuit on one side to be connected to the second interface, and the other end is connected to second gear circuit.
2. line analyzer according to claim 1, which is characterized in that the reference voltage signal is earth signal.
3. line analyzer according to claim 1, which is characterized in that the route operating condition setting circuit includes: second
Digital regulation resistance, for parallel resistance operating condition to be arranged；
And second digital regulation resistance is serially connected between second midget relay and the reference voltage interface, or concatenation
Between the current detection circuit and second midget relay.
4. line analyzer according to claim 1, which is characterized in that the current detection circuit includes: power resistor
With current detecting chip；
The power resistor is serially connected between the first interface and route operating condition setting circuit；And
The current detecting chip is in parallel with the power resistor.
5. line analyzer according to claim 1, which is characterized in that the analyzer further includes touch display screen, with
The microprocessor connection；
And the microprocessor is also used to receive the input signal from the touch display screen, and controls the touch display screen
Show user interface.
6. line analyzer according to claim 5, which is characterized in that the user interface include it is one of following or
A combination thereof:
Data interaction interface, for showing route current voltage, the line current passed through and current line relative resistance；
Waveform interactive interface, for showing test point waveform and test line right side test point waveform on the left of test line；
Interactive interface is arranged in operating condition, for show different types of route work condition state and under the route work condition state of part it is corresponding
Parameter setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610510357.3A CN106443151B (en) | 2016-06-30 | 2016-06-30 | A kind of line analyzer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610510357.3A CN106443151B (en) | 2016-06-30 | 2016-06-30 | A kind of line analyzer |
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| CN106443151A CN106443151A (en) | 2017-02-22 |
| CN106443151B true CN106443151B (en) | 2019-06-25 |
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| CN109375123A (en) * | 2018-09-05 | 2019-02-22 | 中国海洋石油集团有限公司 | A kind of connecting detection device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206180U (en) * | 1986-08-23 | 1988-07-27 | 河北省沧州电业局 | Site terminal device for automatic monitoring and controlling network of carrier communication network |
| CN101170322B (en) * | 2007-12-10 | 2012-07-25 | 烽火通信科技股份有限公司 | User line and user circuit testing system and method |
| CN201571053U (en) * | 2009-10-28 | 2010-09-01 | 国网电力科学研究院 | Automatic performance measuring device of power wire carrier communication channel |
| CN202204870U (en) * | 2011-05-25 | 2012-04-25 | 河南新天科技股份有限公司 | Full-automatic power consumption tester |
| KR101476685B1 (en) * | 2013-06-03 | 2014-12-26 | 엘에스산전 주식회사 | Detecting circuit for circuit breaker |
| CN203368464U (en) * | 2013-06-26 | 2013-12-25 | 南京泰通科技有限公司 | On-line monitoring unit for signal cable |
| CN204314388U (en) * | 2015-01-12 | 2015-05-06 | 南京信息工程大学 | A kind of program controlled high precision resistance measuring instrument based on analog to digital converter |
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