CN118033482A - Remote quick checking device for cable core wires in different places - Google Patents
Remote quick checking device for cable core wires in different places Download PDFInfo
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- CN118033482A CN118033482A CN202410426041.0A CN202410426041A CN118033482A CN 118033482 A CN118033482 A CN 118033482A CN 202410426041 A CN202410426041 A CN 202410426041A CN 118033482 A CN118033482 A CN 118033482A
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- 238000005259 measurement Methods 0.000 claims abstract description 35
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- 230000000007 visual effect Effects 0.000 claims abstract description 10
- 230000003993 interaction Effects 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
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- 230000000875 corresponding effect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
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- 238000004891 communication Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The invention relates to the field of power testing, in particular to a remote and rapid checking device for a cable core wire in different places, which comprises the following components: the detection part comprises a singlechip for measuring the voltage and the current of each core wire of the cable, a measurement terminal connected with the singlechip and a power supply capable of providing different voltages; the resistor part comprises a resistor box for forming a measuring circuit and a measuring common end connected with the cable shielding wire to be measured and used for connecting the measuring circuit; the temperature sensing part comprises a temperature sensor for measuring the temperature of the working environment and a temperature control output module capable of outputting heat; an interaction part comprising a display for displaying the measurement result and the ambient temperature and an audible and visual alarm for giving an alarm; by arranging the device, the checking device and the checking method are simplified, the measuring accuracy is effectively improved, the device and the method can adapt to different working environments, the detection range is improved, and meanwhile, the accuracy and the practicability of the checking device are further improved.
Description
Technical Field
The invention relates to the technical field of power testing, in particular to a remote quick checking device for a cable core wire in different places.
Background
At present, cables are widely used in the fields of industry and automation control, and the correctness of cable cores determines the integrity and correctness of circuits. The control cable used in the transformer substation usually goes from the equipment field to the protection room, and is generally more than one hundred meters, even hundreds of meters, so that difficulty is brought to the checking work of the cable core wire, and the conventional method is to use a universal meter for screening, so that the working efficiency is low. Taking 24-core cables as an example, the wire cores can be determined by measuring 5 times at least, and the total number of the wire cores is 100 times, so that the traditional method is characterized by too simple tool functions, low working efficiency and low checking speed.
Chinese patent application publication No.: CN114089039a discloses a cable core wire test checking system, the invention discloses a cable core wire test checking system, which comprises a checking device used for two ends of a cable, the checking device comprises a case and a main control board arranged in the case and used for testing the alignment, the direct resistance and the insulation resistance; the intelligent testing machine is characterized in that a camera, a control panel and a plurality of testing ports are arranged on the machine case, the display screen and the testing ports are respectively connected with the main control board, each testing port is connected with a testing clamp, and the control panel is provided with a display screen, a communication button for sending control instructions to the main control board, a power switch button, a master-slave machine switching button, a video button, a pair line button, a direct resistance button and an insulation button. The cable core wire test checking system provided by the invention allows single or double operation, can complete the alignment test, the direct resistance test and the insulation test of a plurality of core wires at one time, and the direct resistance test is the measurement of direct current resistance, integrates a plurality of test items, and greatly improves the working efficiency and the use efficiency.
It can be seen that the above technical solution has the following problems:
the main control board and the equipment are complex, only the limited cable core number can be measured in each measurement, the cable resistance is small and is not easy to measure, the resistance value of the long-distance measured cable is increased, the measured resistance value is small and cannot be distinguished due to the fact that the voltage cannot be increased by a power supply, and the cable cannot be used under severe cold conditions.
Disclosure of Invention
Therefore, the invention provides a remote and rapid checking device for cable core wires in different places, which is used for solving the problems that a main control board and equipment in the prior art are complex, only the limited cable core wires can be measured in each measurement, the cable resistance is small and is not easy to measure, the resistance value of a long-distance measured cable is increased, the measured resistance value is small and cannot be distinguished due to the fact that the voltage cannot be increased by a power supply, and the device cannot be used under severe cold conditions.
In order to achieve the above object, the present invention provides a remote and rapid checking device for a cable core wire in different places, comprising:
The detection part is connected with the testing end of the cable core wire to be tested and comprises a singlechip for measuring the voltage and the current of each core wire of the cable, a measuring terminal connected with the singlechip and a power supply capable of providing different voltages;
the resistor part is connected with the reading end of the cable core wire to be measured and comprises a resistor box for forming a measuring circuit and a measuring public end connected with the cable shielding wire to be measured and used for connecting the measuring circuit;
The temperature sensing part is connected with the detection part and comprises a temperature sensor for measuring the temperature of the working environment and a temperature control output module capable of outputting heat;
And the interaction part is connected with the detection part and comprises a display for displaying the measurement result and the ambient temperature and an audible and visual alarm for giving an alarm.
Further, the resistor box includes:
a calibration resistor connected with each core wire of the cable and used for serving as a measured resistor in the measuring circuit and preventing the measuring circuit from being short-circuited;
the wiring terminal is connected with the calibration resistor and the cable core wire to be tested and is used for connecting the measuring circuit;
and the terminal button is connected with the wiring terminal and used for controlling the opening and closing of the wiring terminal.
Further, in the measuring process, the singlechip is connected with two measuring terminals, the first measuring terminal is connected with each cable core wire to be measured, and the second measuring terminal is connected with the cable shielding wire to be measured.
Further, in the measuring process, the single chip microcomputer sequentially measures the voltage and the current of each cable core wire to be measured, calculates a corresponding resistance value according to a measuring result, and displays the resistance value on the display.
Further, the singlechip compares the resistance value with the value of the calibration resistor, and analyzes according to a comparison result:
And determining a corresponding reading end of the cable core wire to be tested according to the multiple.
Further, each core wire of the cable is correspondingly measured in resistance value;
and if the measured resistance values have the same value, judging that the corresponding measured cable core wires are short-circuited.
Further, when the current value measured by the single chip microcomputer is smaller than a set current value, the power supply voltage is increased or the external power supply is connected to the single chip microcomputer to increase the voltage, and if the current value measured by the single chip microcomputer is increased and is higher than the set current value, the single chip microcomputer calculates a corresponding resistance value according to a measurement result;
The measurement result comprises the voltage and current values of each core wire of the cable measured by the singlechip;
the set current value is related to the power supply voltage and the length of the cable core wire to be tested.
Further, when the power supply voltage is increased, if the singlechip detects that the current value is unchanged, the corresponding detected cable core wire is judged to be broken.
Further, the temperature sensor can measure the temperature of the working environment, when the temperature is lower than a set temperature, the temperature control output module starts heating, the audible and visual alarm starts alarming, and when the temperature is higher than the set temperature, the temperature control output module stops heating;
The set temperature is related to the remote quick check device of the cable core wire.
Furthermore, the calibration resistor can be correspondingly configured according to the number of the cable cores to be measured, and is a variable resistor, and is adjusted to be a uniform resistance value before measurement.
Compared with the prior art, the invention has the beneficial effects that the conventional singlechip chip is adopted, special chip control is not needed, the checking device and method are simplified, the advantages of simplicity and reliability are realized, and the accuracy and the practicability of the checking device are further improved.
Further, the technical scheme is not limited by the core number of the cable, can be expanded infinitely, can detect the core wire of the cable more comprehensively, and further improves the accuracy and the practicability of the checking device while improving the detection range.
Further, the resistor used in the technical scheme is a variable resistor, so that the resistor is convenient to adjust to be a uniform resistance value, and is convenient to cooperate with circuit measurement, so that the accuracy of measurement is effectively improved, and meanwhile, the accuracy and the practicability of the checking device are further improved.
Further, this technical scheme adopts the power to charge for the battery, but the connection charger charges, also can insert external power supply, conveniently measures the great cable of long distance resistance, when having improved measuring scope and accuracy, has further promoted verifying attachment's accuracy and practicality.
Further, this technical scheme has set up ambient temperature measuring device, and automatic start heating function when the ultra-low temperature can adapt to different operation environment, and convenient high efficiency has further promoted verifying attachment's accuracy and practicality.
Drawings
FIG. 1 is a block diagram of a remote quick check device for a cable core of the present invention;
FIG. 2 is a schematic circuit diagram of a remote quick check device for a cable core wire of the present invention;
FIG. 3 is a block diagram of a remote quick check device resistor box for a cable core of the invention;
FIG. 4 is a diagram showing the construction of the measuring terminal of the remote quick check device for cable core wires of the present invention;
Wherein: 1, a detection part; 11, a singlechip; 12, measuring terminals; 121, a first measurement terminal; 122, a second measurement terminal; 13, a power supply; 2, a resistor part; 21, a resistor box; 211, calibrating the resistor; 212, a wiring terminal; 213, terminal buttons; 22, measuring a public end; 3, a temperature sensing part; 31, a temperature sensor; 32, a temperature control output module; 4, an interaction part; 41, a display; 42, an audible and visual alarm; 5, a cable to be tested; 51, a cable core; 52, cable shield wires.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1, which is a block diagram of a remote quick check device for a cable core according to the present invention, the remote quick check device for a cable core includes:
the detection part is connected with the testing end of the cable core wire to be tested and comprises a singlechip for measuring the voltage and the current of each core wire of the cable, a measuring terminal connected with the singlechip and a power supply capable of providing different voltages;
The resistor part is connected with the reading end of the cable core wire to be measured and comprises a resistor box for forming a measuring circuit and a measuring common end connected with the cable shielding wire to be measured and used for connecting the measuring circuit;
The temperature sensing part is connected with the detection part and comprises a temperature sensor for measuring the temperature of the working environment and a temperature control output module capable of outputting heat;
and the interaction part is connected with the detection part and comprises a display for displaying the measurement result and the ambient temperature and an audible and visual alarm for giving an alarm.
Example 1:
With continued reference to fig. 1, in this embodiment, the detecting portion 1 includes a single chip microcomputer 11, a measuring terminal 12 and a power supply 13; the resistor part 2 includes a resistor box 21 and a measurement common terminal 22; the temperature sensing part 3 comprises a temperature sensor 31 and a temperature control output module 32; the interaction part 4 comprises a display 41 and an audible and visual alarm 42; the cable 5 to be tested comprises a cable core 51 and a cable shield 52; wherein, singlechip 11 links to each other with power 13 through the wire, measurement terminal 12 links to each other with singlechip 11, resistance box 21 links to each other with cable heart yearn 51 through the wire, measurement common port 22 links to each other with cable shield line 52 through the wire, temperature sensor 31 links to each other with singlechip 11 through the wire, temperature control output module 32 links to each other with temperature sensor 31 through the wire, display 41 links to each other with singlechip 11 through the wire, audible and visual annunciator 42 links to each other with singlechip 11 through the wire, cable heart yearn 51 both ends link to each other with resistance box 21 and measurement terminal 12 respectively through the wire, cable shield line 52 both ends link to each other with measurement terminal 12 and measurement common port 22 respectively through the wire.
Referring to fig. 3, which is a block diagram of a resistor box of a remote quick check device for a cable core according to the present invention, the resistor box includes:
The calibration resistor is connected with each core wire of the cable and is used as a measured resistor in the measuring circuit and for preventing the measuring circuit from being short-circuited;
the wiring terminal is connected with the calibration resistor and the cable core wire to be tested and is used for connecting a measuring circuit;
And the terminal button is connected with the wiring terminal and used for controlling the opening and closing of the wiring terminal.
Example 2:
With continued reference to fig. 3, in this embodiment, the resistor box 21 includes a calibration resistor 211, a connection terminal 212, and a terminal button 213; the calibration resistors 211 are connected with the wiring terminals 212 through wires, the wiring terminals 212 are connected with the terminal buttons 213, the calibration resistors 211 are sequentially connected in series through wires, and each calibration resistor 211, each wiring terminal 212 and each terminal button 213 are in one-to-one correspondence.
Specifically, by adopting the conventional singlechip chip, special chip control is not needed, so that the checking device and method are simplified, the advantages of simplicity and reliability are achieved, and the accuracy and practicability of the checking device are further improved.
Referring to fig. 4, which is a position structure diagram of a measuring terminal of the remote quick checking device for cable core wires of the present invention, the measuring terminal 12 includes a first measuring terminal 121 and a second measuring terminal 122, during the measuring process, the single chip microcomputer 11 is connected to the two measuring terminals, the first measuring terminal 121 is connected to each cable core wire to be measured, and the second measuring terminal 122 is connected to a cable shielding wire to be measured.
Specifically, the technical scheme is not limited by the number of the cable cores, can be expanded infinitely, can detect the cable cores more comprehensively, and further improves the accuracy and the practicability of the checking device while improving the detection range.
Specifically, in the measuring process, the single chip microcomputer sequentially measures the voltage and the current of each cable core wire to be measured, calculates a corresponding resistance value according to the measuring result, and displays the resistance value on the display.
Example 3:
in this embodiment, the single chip microcomputer measures that the voltage of a cable core wire is 10 v and the current is 1 ampere, and then calculates that the resistance of the cable core wire is 10 ohm, and displays the resistance on the display.
Specifically, the singlechip compares the resistance value with the value of the calibration resistor, and analyzes according to the comparison result:
The resistance value is a multiple of the value of the calibration resistance, and the corresponding cable core wire reading end to be tested is determined according to the multiple.
Example 4:
on the basis of example 3, this example differs from this in that the nominal resistance is 5 ohms, the measured value is 10 ohms, the calculated multiple is 2, and the cable core number is 2.
Specifically, each core wire of the cable corresponds to a measured resistance value;
if the measured resistance values have the same values, judging that the corresponding measured cable core wires are short-circuited.
Example 5:
on the basis of example 4, this example differs from this in that if the other cable core is measured to be 10 ohms, a short circuit problem occurs in both cable cores.
Specifically, when the current value measured by the single chip microcomputer is smaller than the set current value, the power supply voltage is increased or the external power supply is connected to the single chip microcomputer to increase the voltage, and if the current value measured by the single chip microcomputer is increased and is higher than the set current value, the single chip microcomputer calculates a corresponding resistance value according to the measurement result;
the measurement result comprises the voltage and current values of each core wire of the single chip microcomputer measurement cable;
the set current value is related to the power supply voltage and the length of the cable core wire to be tested.
It will be appreciated that the set current value is positively correlated with the supply voltage and negatively correlated with the length of the cable core to be tested.
Example 6:
based on the embodiment 5, the difference between the embodiment and the embodiment is that the current value is set to be 0.1 milliamp, when the power supply voltage is 10 volts, the singlechip measures the current value to be 0 ampere, the power supply voltage is increased to 200 volts, and if the singlechip measures the current value to be 0.2 ampere, the calculated resistance value is 1000 ohms.
Specifically, when the power supply voltage is increased, if the singlechip detects that the current value is unchanged, the corresponding measured cable core wire is judged to be broken.
Example 7:
On the basis of the embodiment 6, the difference between the embodiment and the embodiment is that when the power supply voltage is increased to 200V and the singlechip detects that the current value is 0A, the disconnection of the cable core wire is judged.
Specifically, this technical scheme adopts the power to charge for the battery, but the connecting charger charges, also can insert external power supply, conveniently measures great cable of long distance resistance, when having improved measuring scope and accuracy, has further promoted verifying attachment's accuracy and practicality.
Specifically, the temperature sensor can measure the temperature of the working environment, when the temperature is lower than the set temperature, the temperature control output module starts heating, the audible and visual alarm starts alarming, and when the temperature is higher than the set temperature, the temperature control output module stops heating;
The set temperature is related to the remote quick check device itself of the cable core wire.
It is understood that the temperature setting at the time of measurement is not described in detail herein for those skilled in the art.
Specifically, this technical scheme has set up ambient temperature measuring device, and automatic start heating function when the ultra-low temperature can adapt to different operation environment, and convenient high efficiency has further promoted verifying attachment's accuracy and practicality.
Specifically, the calibration resistor can be correspondingly configured according to the number of the cable cores to be measured, and is a variable resistor, and is adjusted to be a uniform resistance value before measurement.
Example 8:
Referring to fig. 2, which is a schematic circuit diagram of the remote quick checking device for cable core wires of the present invention, in this embodiment, a power supply 13 provides voltages to two ends of a cable 5 to be tested, and a single chip microcomputer 11 measures voltages and passing currents at two ends of the cable 5 to be tested;
The current of the whole measuring circuit flows from the power supply 13, flows into the single chip microcomputer 11, flows into the cable core wire 51 through the first measuring terminal 121 on the single chip microcomputer 11, flows into the resistor part 2 through the cable core wire 51, flows into the cable shielding wire 52, flows into the second measuring terminal 122 through the cable shielding wire 52, and finally flows into the power supply 13.
Specifically, the resistance used in the technical scheme is the variable resistance, so that the resistance is convenient to adjust to be uniform resistance, and the circuit measurement is convenient to cooperate, so that the accuracy of measurement is effectively improved, and meanwhile, the accuracy and the practicability of the checking device are further improved.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A remote quick check device for a cable core wire in different places, comprising:
The detection part is connected with the testing end of the cable core wire to be tested and comprises a singlechip for measuring the voltage and the current of each core wire of the cable, a measuring terminal connected with the singlechip and a power supply capable of providing different voltages;
the resistor part is connected with the reading end of the cable core wire to be measured and comprises a resistor box for forming a measuring circuit and a measuring public end connected with the cable shielding wire to be measured and used for connecting the measuring circuit;
The temperature sensing part is connected with the detection part and comprises a temperature sensor for measuring the temperature of the working environment and a temperature control output module capable of outputting heat;
And the interaction part is connected with the detection part and comprises a display for displaying the measurement result and the ambient temperature and an audible and visual alarm for giving an alarm.
2. The remote quick check device for a cable core according to claim 1, wherein the resistance box includes:
a calibration resistor connected with each core wire of the cable and used for serving as a measured resistor in the measuring circuit and preventing the measuring circuit from being short-circuited;
the wiring terminal is connected with the calibration resistor and the cable core wire to be tested and is used for connecting the measuring circuit;
and the terminal button is connected with the wiring terminal and used for controlling the opening and closing of the wiring terminal.
3. The remote rapid checking device for cable cores according to claim 2, wherein during the measurement process, the single chip microcomputer is connected with two measurement terminals, a first measurement terminal is connected with each cable core to be measured, and a second measurement terminal is connected with the cable shielding wire to be measured.
4. The remote rapid checking device for cable cores according to claim 3, wherein in the measuring process, the single chip microcomputer sequentially measures the voltage and the current of each cable core to be measured, calculates the corresponding resistance value according to the measuring result, and displays the resistance value on the display.
5. The remote and rapid verification device for cable cores according to claim 4, wherein the single-chip microcomputer compares the resistance value with the value of the calibration resistance and analyzes according to the comparison result:
And determining a corresponding reading end of the cable core wire to be tested according to the multiple.
6. The remote quick check device for different places of cable cores according to claim 5, wherein each core of the cable corresponds to a measured resistance value;
and if the measured resistance values have the same value, judging that the corresponding measured cable core wires are short-circuited.
7. The remote rapid checking device for the cable core wire according to claim 6, wherein when the current value measured by the single-chip microcomputer is smaller than a set current value, the power supply voltage is increased or the external power supply is connected to the power supply voltage to increase the voltage, and if the current value measured by the single-chip microcomputer is increased and higher than the set current value, the single-chip microcomputer calculates a corresponding resistance value according to a measurement result;
The measurement result comprises the voltage and current values of each core wire of the cable measured by the singlechip;
the set current value is related to the power supply voltage and the length of the cable core wire to be tested.
8. The remote rapid checking device for cable cores according to claim 7, wherein when the power supply voltage is increased, if the single-chip microcomputer detects that the current value is unchanged, it is determined that the corresponding cable core to be tested is broken.
9. The remote quick check device for a cable core according to claim 8, wherein the temperature sensor is capable of measuring the temperature of the working environment, the temperature control output module starts heating when the temperature is lower than a set temperature, the audible and visual alarm starts alarming, and the temperature control output module stops heating when the temperature is higher than the set temperature;
The set temperature is related to the remote quick check device of the cable core wire.
10. The remote rapid checking device for cable cores according to claim 9, wherein the calibration resistor is configured correspondingly according to the number of the cable cores to be measured, and the calibration resistor is a variable resistor and is adjusted to a uniform resistance value before measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410426041.0A CN118033482A (en) | 2024-04-10 | 2024-04-10 | Remote quick checking device for cable core wires in different places |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410426041.0A CN118033482A (en) | 2024-04-10 | 2024-04-10 | Remote quick checking device for cable core wires in different places |
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| CN118033482A true CN118033482A (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410426041.0A Pending CN118033482A (en) | 2024-04-10 | 2024-04-10 | Remote quick checking device for cable core wires in different places |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202404191U (en) * | 2012-01-19 | 2012-08-29 | 北京市电力公司 | Cable checking device |
| CN203929955U (en) * | 2014-05-28 | 2014-11-05 | 国家电网公司 | A kind of secondary circuit control cables core verifying unit |
| CN114089039A (en) * | 2021-10-29 | 2022-02-25 | 南方电网调峰调频发电有限公司西部检修试验分公司 | Cable core testing and checking system |
| CN115033038A (en) * | 2022-07-04 | 2022-09-09 | 安徽天健环保车辆部件有限公司 | Full liquid crystal instrument heating control system of car under low temperature environment |
-
2024
- 2024-04-10 CN CN202410426041.0A patent/CN118033482A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202404191U (en) * | 2012-01-19 | 2012-08-29 | 北京市电力公司 | Cable checking device |
| CN203929955U (en) * | 2014-05-28 | 2014-11-05 | 国家电网公司 | A kind of secondary circuit control cables core verifying unit |
| CN114089039A (en) * | 2021-10-29 | 2022-02-25 | 南方电网调峰调频发电有限公司西部检修试验分公司 | Cable core testing and checking system |
| CN115033038A (en) * | 2022-07-04 | 2022-09-09 | 安徽天健环保车辆部件有限公司 | Full liquid crystal instrument heating control system of car under low temperature environment |
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