CN116626538A - Cable on-off detector - Google Patents
Cable on-off detector Download PDFInfo
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- CN116626538A CN116626538A CN202310665897.9A CN202310665897A CN116626538A CN 116626538 A CN116626538 A CN 116626538A CN 202310665897 A CN202310665897 A CN 202310665897A CN 116626538 A CN116626538 A CN 116626538A
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- 230000002159 abnormal effect Effects 0.000 claims abstract description 95
- 238000012360 testing method Methods 0.000 claims abstract description 80
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 230000005856 abnormality Effects 0.000 claims abstract description 22
- 238000000691 measurement method Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000012795 verification Methods 0.000 claims description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052744 lithium Inorganic materials 0.000 claims description 6
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 238000001028 reflection method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000002051 biphasic effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
- G01R31/54—Testing for continuity
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention provides a cable on-off detector, which relates to the technical field of cable on-off detection and comprises the following components: based on the abnormal phenomenon of the cable to be detected, obtaining a corresponding abnormal reason combination; based on the combination of abnormal reasons, matching a corresponding abnormal cable measurement method, and determining a circuit to be tested; matching corresponding test circuits based on the to-be-tested circuit and the abnormality reason combination; and determining the on-off condition of the cable based on the circuit connection conditions of the test circuit and the circuit to be tested. The method comprises the steps of obtaining a corresponding abnormal reason combination by analyzing the abnormal phenomenon of the cable to be detected, matching a corresponding abnormal cable measurement method, determining a circuit to be tested, matching the corresponding test circuit based on the circuit to be tested and the abnormal reason combination, connecting the circuit to be tested with the corresponding test circuit, detecting the on-off condition of the cable, and improving the accuracy and efficiency of the on-off detection of the cable.
Description
Technical Field
The invention relates to the technical field of cable on-off detection, in particular to a cable on-off detector.
Background
At present, the on-off of a test cable is generally tested by a universal meter, the test current is several milliamperes to more than ten milliamperes, and the test current is smaller due to special on-off test equipment designed for the communication cable. The contact resistance used is generally very small in resistance value, and the resistance value is in the range of micro ohms to several ohms, if the current flowing through the resistance contact is too large during testing, the contact point and the surrounding area thereof are softened or dissolved, the resistance value is further reduced, the testing result is directly affected, and if the power cable working at high current is switched on and off by adopting a low-current test, the erroneous judgment is easy to occur.
Accordingly, the present invention provides a cable on-off detector.
Disclosure of Invention
The invention provides a cable on-off detector which is used for obtaining a corresponding abnormal reason combination by analyzing an abnormal phenomenon of a cable to be detected, matching a corresponding abnormal cable measurement method, determining a circuit to be tested, matching a corresponding test circuit based on the circuit to be tested and the abnormal reason combination, connecting the circuit to be tested with the circuit to be tested, detecting the on-off condition of the cable, and improving the accuracy and efficiency of the on-off detection of the cable.
The invention provides a cable on-off detector, comprising:
the reason analysis module: based on the abnormal phenomenon of the cable to be detected, obtaining a corresponding abnormal reason combination;
the circuit to be tested determines the module: based on the combination of abnormal reasons, matching a corresponding abnormal cable measurement method, and determining a circuit to be tested;
and a test circuit matching module: matching corresponding test circuits based on the to-be-tested circuit and the abnormality reason combination;
and a cable judging module: and determining the on-off condition of the cable based on the circuit connection conditions of the test circuit and the circuit to be tested.
Preferably, the present invention provides a cable on-off detector, further comprising:
a charging circuit: the charging circuit is connected with the testing circuit and is used for charging the lithium battery in the testing circuit;
and the electric quantity display circuit is as follows: the electric quantity display circuit is connected with the test circuit and used for displaying the electric quantity of the lithium battery in the test circuit;
test circuit: the test circuit, the switch and the electric horn are connected in series at two ends of the circuit to be tested, and form a series circuit with the circuit to be tested, so as to test the on-off state of the circuit to be tested.
Preferably, the present invention provides a cable on-off detector, a cause analysis module, comprising:
a decomposition unit: decomposing the abnormal phenomenon of the cable to be detected to obtain corresponding sub-phenomena;
category matching unit: obtaining the abnormal type of each sub-phenomenon based on the abnormal phenomenon-type library of the cable to be detected and all sub-phenomena;
a random combination unit: based on the sub-phenomena of different abnormal types, carrying out random combination to obtain a plurality of first combinations;
a reason matching unit: obtaining corresponding first reason combinations based on all sub-phenomena and abnormal phenomenon-reason libraries in each first combination;
and a verification unit: and carrying out rationality verification on each first reason combination to obtain the abnormality reason combination with optimal verification.
Preferably, the present invention provides a cable on-off detector, a circuit to be tested determining module, comprising:
real-time situation acquisition unit: based on the combination of the abnormal reasons and the cable attribute of the cable to be detected, obtaining the corresponding real-time condition inside the cable;
the method matching unit: and obtaining a corresponding abnormal cable measurement method based on the real-time situation and the situation-measurement method comparison table.
Preferably, the present invention provides a cable on-off detector, a circuit to be tested determining module, further comprising:
a signal acquisition unit: based on an abnormal cable measurement method, a corresponding detection signal is obtained;
a time acquisition unit: transmitting a detection signal at the head end of the cable to be detected, and obtaining detection time between transmitting the detection signal and receiving a return signal;
an outlier determination unit: obtaining coordinates of the abnormal points based on the detection time and the emission speed of the signals;
the circuit to be tested acquisition unit: and obtaining the circuit to be tested taking the abnormal point as the center based on the coordinates of the abnormal point and the preset length of the circuit to be tested.
Preferably, the present invention provides a cable on-off detector, a test circuit matching module, comprising:
abnormal resistance acquisition unit: obtaining a first resistor corresponding to a fault point based on the abnormal reason combination corresponding to the circuit to be tested;
circuit resistance acquisition unit: obtaining a corresponding second resistor based on the length of the circuit to be tested and the average transport resistance of the resistor to be tested;
the resistance to be detected acquisition unit: and obtaining the resistor to be detected based on the first resistor and the second resistor.
Preferably, the present invention provides a cable on-off detector, a test circuit matching module, further comprising:
a real-time current acquisition unit: based on the combination of the abnormal reasons and the cable attribute of the cable to be detected, obtaining corresponding real-time current of the cable;
test circuit acquisition unit: and based on the real-time current of the cable and the resistance to be detected, matching in a current-resistance-test circuit comparison table to obtain a corresponding test circuit.
Preferably, the present invention provides a cable on-off detector, and a cable judgment module, further comprising:
a cable path judging unit: connecting the test circuit to two ends of the circuit to be tested, and if the electric horn sounds when the switch is closed, the cable to be tested is not broken;
a cable disconnection judging unit: if the electric horn does not make sound when the switch is closed, the cable to be detected is disconnected.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a block diagram of a cable on-off detector in an embodiment of the invention;
FIG. 2 is a diagram showing a connection of a cable on-off detector according to an embodiment of the present invention;
fig. 3 is a circuit diagram of a cable on-off detector according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Example 1:
an embodiment of the present invention provides a cable on-off detector, as shown in fig. 1, including:
the reason analysis module: based on the abnormal phenomenon of the cable to be detected, obtaining a corresponding abnormal reason combination;
the circuit to be tested determines the module: based on the combination of abnormal reasons, matching a corresponding abnormal cable measurement method, and determining a circuit to be tested;
and a test circuit matching module: matching corresponding test circuits based on the to-be-tested circuit and the abnormality reason combination;
and a cable judging module: and determining the on-off condition of the cable based on the circuit connection conditions of the test circuit and the circuit to be tested.
In this embodiment, the abnormal phenomenon refers to all the phenomena of the cable to be detected, which are not the normal operation phenomenon of the cable at the present moment, for example: the "pigtail" effect, loss of continuity, and combinations thereof.
In this embodiment, the combination of abnormality causes refers to a combination of abnormality causes obtained by analyzing each abnormality of a cable to be detected, wherein the abnormality causes include: insulated conductors twist at incorrect pitches or pitch orientations, impaired insulation integrity of the conductors, continuous bending damage to the shield, external damage, insulation wetting, chemical corrosion, long term overload operation, cable joint failure.
In this embodiment, the abnormal cable measurement method refers to a method of measuring an abnormal position of a cable, including: loop bridge balancing method, low-voltage pulse reflection method and flash tester method.
In this embodiment, the circuit to be tested refers to a circuit to be tested, which is measured by an abnormal cable measurement method to obtain an abnormal point of failure, wherein the abnormal point is in the center and has a length consistent with that of a preset circuit to be tested, so as to achieve the purpose of being conveniently connected in series with the test circuit, and the preset circuit to be tested is a preset length of the circuit to be tested, which is suitable for being connected in series with the test circuit.
In this embodiment, the test circuit refers to a circuit including a power supply and a resistor, and is connected in series with a switch and an electric horn at two ends of the circuit to be tested, and forms a series circuit with the circuit to be tested, so as to test on/off of the circuit to be tested.
In this embodiment, the circuit connection condition refers to whether the electric horn emits sound after the test circuit, the switch and the electric horn are connected in series at two ends of the circuit to be tested, and indicates the on-off condition of the cable.
In this embodiment, the on-off condition of the cable refers to that after the test circuit, the switch and the electric horn are connected in series at two ends of the circuit to be tested, if the electric horn sounds when the switch is closed, the cable to be tested is not broken, and if the electric horn does not sound when the switch is closed, the cable to be tested is broken.
The working principle and the beneficial effects of the technical scheme are as follows: the method comprises the steps of obtaining a corresponding abnormal reason combination by analyzing the abnormal phenomenon of the cable to be detected, matching a corresponding abnormal cable measurement method, determining a circuit to be tested, matching the corresponding test circuit based on the circuit to be tested and the abnormal reason combination, connecting the circuit to be tested with the corresponding test circuit, detecting the on-off condition of the cable, and improving the accuracy and efficiency of the on-off detection of the cable.
Example 2:
the system provided in embodiment 1 of the present invention, as shown in fig. 2 and 3, further includes:
a charging circuit: the charging circuit is connected with the testing circuit and is used for charging the lithium battery in the testing circuit;
and the electric quantity display circuit is as follows: the electric quantity display circuit is connected with the test circuit and used for displaying the electric quantity of the lithium battery in the test circuit;
test circuit: the test circuit, the switch and the electric horn are connected in series at two ends of the circuit to be tested, and form a series circuit with the circuit to be tested, so as to test the on-off state of the circuit to be tested.
The working principle and the beneficial effects of the technical scheme are as follows: the charging circuit and the electric quantity display circuit are connected in the test circuit, so that the stability of a power supply of the test circuit is ensured, the test circuit, the switch and the electric horn are connected in series at two ends of the circuit to be tested, and the series circuit is formed with the circuit to be tested and used for testing the on-off state of the circuit to be tested, and the on-off detection efficiency of the cable is improved.
Example 3:
according to the system provided in embodiment 1 of the present invention, the cause analysis module includes:
a decomposition unit: decomposing the abnormal phenomenon of the cable to be detected to obtain corresponding sub-phenomena;
category matching unit: obtaining the abnormal type of each sub-phenomenon based on the abnormal phenomenon-type library of the cable to be detected and all sub-phenomena;
a random combination unit: based on the sub-phenomena of different abnormal types, carrying out random combination to obtain a plurality of first combinations;
a reason matching unit: obtaining corresponding first reason combinations based on all sub-phenomena and abnormal phenomenon-reason libraries in each first combination;
and a verification unit: and verifying rationality of each first reason combination to obtain qualified abnormal reason combinations.
In this embodiment, the sub-phenomenon refers to that by separating the abnormal phenomenon of the cable to be detected, the abnormal phenomenon may contain a plurality of sub-phenomena.
In this embodiment, the anomaly-type library refers to a database containing anomaly sub-phenomena and corresponding anomaly types, wherein the anomaly types refer to types of anomaly sub-phenomena divided by types of occurrence causes, and includes: low resistance failure, pilot-controlled strand open circuit failure, high resistance failure, flashover failure, breakdown failure, operational failure.
In this embodiment, the abnormality categories refer to categories of abnormality sub-phenomena divided by categories of occurrence causes, including: low resistance failure, pilot-controlled strand open circuit failure, high resistance failure, flashover failure, breakdown failure, operational failure.
In this embodiment, the first combination refers to a combination obtained by randomly combining different abnormal kinds of sub-phenomena.
In this embodiment, the anomaly-cause library refers to a database containing anomaly sub-phenomena and corresponding anomaly causes, wherein the anomaly causes include: single phase cause, biphasic cause, low resistance cause, high resistance cause, open circuit cause, and breakdown cause.
In this embodiment, the first cause combinations refer to combinations of corresponding abnormality causes in which each first combination internal sub-phenomenon is matched in an abnormality-cause library.
In this embodiment, the rationality verification refers to verification of whether or not abnormality causes in the first cause combination can occur at the same time, without collision.
In this embodiment, the combination of abnormality causes refers to a combination in which abnormality causes in the first combination of causes can occur simultaneously without collision.
The working principle and the beneficial effects of the technical scheme are as follows: the sub-phenomena are obtained by splitting the abnormal phenomena of the cable to be detected, the abnormal types of the sub-phenomena are analyzed, the combinations of the sub-phenomena of different types are obtained, the rationality verification is carried out on all abnormal reasons corresponding to the combinations, the abnormal reason combinations are obtained, all the abnormal reasons are accurately analyzed, and the subsequent detection of the on-off state of the cable is facilitated.
Example 4:
according to the system provided in embodiment 1 of the present invention, a circuit to be tested determining module includes:
real-time situation acquisition unit: based on the combination of the abnormal reasons and the cable attribute of the cable to be detected, obtaining the corresponding real-time condition inside the cable;
the method matching unit: and obtaining a corresponding abnormal cable measurement method based on the real-time situation and the situation-measurement method comparison table.
In this embodiment, the cable properties include: current loading capacity, inductance, impedance, capacitance, resistance, and voltage.
In this embodiment, the real-time situation refers to a real-time parameter obtained by predicting the interior of a cable by analyzing all the causes of the abnormality in the combination of causes of the abnormality and the cable attribute of the cable to be detected, and includes: current, resistance, voltage.
In this embodiment, the case-measurement method refers to a table containing one-to-one comparison of real-time cases and abnormal cable measurement methods.
The working principle and the beneficial effects of the technical scheme are as follows: the method for measuring the abnormal cable is favorable for accurately measuring abnormal points of the cable and further detecting on-off of the cable by analyzing the abnormal reason combination and the cable attribute of the cable to be detected, predicting the interior of the cable and matching the abnormal cable.
Example 5:
according to the system provided in embodiment 1 of the present invention, the circuit to be tested determines a module, and further includes:
a signal acquisition unit: based on an abnormal cable measurement method, a corresponding detection signal is obtained;
a time acquisition unit: transmitting a detection signal at the head end of the cable to be detected, and obtaining detection time between transmitting the detection signal and receiving a return signal;
an outlier determination unit: obtaining coordinates of the abnormal points based on the detection time and the emission speed of the signals;
the circuit to be tested acquisition unit: and obtaining the circuit to be tested taking the abnormal point as the center based on the coordinates of the abnormal point and the preset length of the circuit to be tested.
In this embodiment, the detection signal refers to a signal for measurement sent out by a selected abnormal cable measurement method, such as a pulse signal emitted by a low-voltage pulse reflection method.
In this embodiment, the detection time refers to the time between the transmission of the detection signal and the receipt of the return signal.
In this embodiment, the transmission speed refers to the speed reached after the default transmission of the detection signal.
In this embodiment, the preset circuit to be tested refers to a preset length of the circuit to be tested, which is suitable for being connected in series with the test circuit.
The working principle and the beneficial effects of the technical scheme are as follows: the abnormal points of the cable to be detected are accurately estimated through an abnormal cable measurement method, and the efficiency and the accuracy of the on-off test of the cable are improved.
Example 6:
according to the system provided in embodiment 1 of the present invention, a test circuit matching module includes:
abnormal resistance acquisition unit: obtaining a first resistor corresponding to a fault point based on the abnormal reason combination corresponding to the circuit to be tested;
circuit resistance acquisition unit: obtaining a corresponding second resistor based on the length of the circuit to be tested and the average transport resistance of the cable to be tested;
the resistance to be detected acquisition unit: and obtaining the resistor to be detected based on the first resistor and the second resistor.
In this embodiment, the first resistance refers to a resistance at an abnormal point position in the circuit to be tested at the present moment by analyzing all the causes of the abnormality in the combination of causes of the abnormality.
In this embodiment, the average transport resistance refers to the average resistance of the cable to be tested.
In this embodiment, the second resistance refers to a resistance of an abnormal point of the circuit to be tested by calculating the length of the circuit to be tested and the average transport resistance of the cable to be tested.
In this embodiment, the resistance to be detected refers to the resistance of the circuit to be tested.
The working principle and the beneficial effects of the technical scheme are as follows: the resistance of the circuit to be tested is calculated, so that the matching of the corresponding test circuit is facilitated, and the efficiency of the on-off test of the cable is improved.
Example 7:
according to the system provided in embodiment 1 of the present invention, the test circuit matching module further includes:
a real-time current acquisition unit: based on the combination of the abnormal reasons and the cable attribute of the cable to be detected, obtaining corresponding real-time current of the cable;
test circuit acquisition unit: and based on the real-time current of the cable and the resistance to be detected, matching in a current-resistance-test circuit comparison table to obtain a corresponding test circuit.
In this embodiment, the real-time current of the cable refers to the current of the cable at the current time obtained due to the influence of all the abnormality causes in the abnormality cause combination on the cable to be detected.
In this embodiment, the current-resistance-test circuit comparison table refers to a table containing one-to-one correspondence between different currents, resistances and corresponding test circuits.
The working principle and the beneficial effects of the technical scheme are as follows: the resistor and the current of the circuit to be tested are analyzed, the corresponding test circuit is matched, and the accuracy of the on-off detection of the cable is ensured.
Example 8:
according to the system provided in embodiment 1 of the present invention, the cable judgment module further includes:
a cable path judging unit: connecting the test circuit to two ends of the circuit to be tested, and if the electric horn sounds when the switch is closed, the cable to be tested is not broken;
a cable disconnection judging unit: if the electric horn does not make sound when the switch is closed, the cable to be detected is disconnected.
The working principle and the beneficial effects of the technical scheme are as follows: the on-off of the cable is intuitively judged through the series electric horn, and the efficiency of the on-off test of the cable is improved.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. A cable on-off detector, comprising:
the reason analysis module: based on the abnormal phenomenon of the cable to be detected, obtaining a corresponding abnormal reason combination;
the circuit to be tested determines the module: based on the combination of abnormal reasons, matching a corresponding abnormal cable measurement method, and determining a circuit to be tested;
and a test circuit matching module: matching corresponding test circuits based on the to-be-tested circuit and the abnormality reason combination;
and a cable judging module: and determining the on-off condition of the cable based on the circuit connection conditions of the test circuit and the circuit to be tested.
2. The detector of claim 1, further comprising:
a charging circuit: the charging circuit is connected with the testing circuit and is used for charging the lithium battery in the testing circuit;
and the electric quantity display circuit is as follows: the electric quantity display circuit is connected with the test circuit and used for displaying the electric quantity of the lithium battery in the test circuit;
test circuit: the test circuit, the switch and the electric horn are connected in series at two ends of the circuit to be tested, and form a series circuit with the circuit to be tested, so as to test the on-off state of the circuit to be tested.
3. The detector of claim 1, wherein the cause analysis module comprises:
a decomposition unit: decomposing the abnormal phenomenon of the cable to be detected to obtain corresponding sub-phenomena;
category matching unit: obtaining the abnormal type of each sub-phenomenon based on the abnormal phenomenon-type library of the cable to be detected and all sub-phenomena;
a random combination unit: based on the sub-phenomena of different abnormal types, carrying out random combination to obtain a plurality of first combinations;
a reason matching unit: obtaining corresponding first reason combinations based on all sub-phenomena and abnormal phenomenon-reason libraries in each first combination;
and a verification unit: and carrying out rationality verification on each first reason combination to obtain the abnormality reason combination with optimal verification.
4. The detector of claim 1, wherein the circuit to be tested determines the module comprising:
real-time situation acquisition unit: based on the combination of the abnormal reasons and the cable attribute of the cable to be detected, obtaining the corresponding real-time condition inside the cable;
the method matching unit: and obtaining a corresponding abnormal cable measurement method based on the real-time situation and the situation-measurement method comparison table.
5. The detector of claim 1, wherein the circuit to be tested determines a module, further comprising:
a signal acquisition unit: based on an abnormal cable measurement method, a corresponding detection signal is obtained;
a time acquisition unit: transmitting a detection signal at the head end of the cable to be detected, and obtaining detection time between transmitting the detection signal and receiving a return signal;
an outlier determination unit: obtaining coordinates of the abnormal points based on the detection time and the emission speed of the signals;
the circuit to be tested acquisition unit: and obtaining the circuit to be tested taking the abnormal point as the center based on the coordinates of the abnormal point and the preset length of the circuit to be tested.
6. The detector of claim 5, wherein the test circuit matching module comprises:
abnormal resistance acquisition unit: obtaining a first resistor corresponding to a fault point based on the abnormal reason combination corresponding to the circuit to be tested;
circuit resistance acquisition unit: obtaining a corresponding second resistor based on the length of the circuit to be tested and the average transport resistance of the resistor to be tested;
the resistance to be detected acquisition unit: and obtaining the resistor to be detected based on the first resistor and the second resistor.
7. The detector of claim 6, wherein the test circuit matching module further comprises:
a real-time current acquisition unit: based on the combination of the abnormal reasons and the cable attribute of the cable to be detected, obtaining corresponding real-time current of the cable;
test circuit acquisition unit: and based on the real-time current of the cable and the resistance to be detected, matching in a current-resistance-test circuit comparison table to obtain a corresponding test circuit.
8. The detector of claim 6, wherein the cable judgment module further comprises:
a cable path judging unit: connecting the test circuit to two ends of the circuit to be tested, and if the electric horn sounds when the switch is closed, the cable to be tested is not broken;
a cable disconnection judging unit: if the electric horn does not make sound when the switch is closed, the cable to be detected is disconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310665897.9A CN116626538A (en) | 2023-06-06 | 2023-06-06 | Cable on-off detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310665897.9A CN116626538A (en) | 2023-06-06 | 2023-06-06 | Cable on-off detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116626538A true CN116626538A (en) | 2023-08-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310665897.9A Pending CN116626538A (en) | 2023-06-06 | 2023-06-06 | Cable on-off detector |
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| Country | Link |
|---|---|
| CN (1) | CN116626538A (en) |
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2023
- 2023-06-06 CN CN202310665897.9A patent/CN116626538A/en active Pending
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