CN113049988A - Method and device for identifying AC/DC cable, electronic equipment and storage medium - Google Patents
Method and device for identifying AC/DC cable, electronic equipment and storage medium Download PDFInfo
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- CN113049988A CN113049988A CN202110271319.8A CN202110271319A CN113049988A CN 113049988 A CN113049988 A CN 113049988A CN 202110271319 A CN202110271319 A CN 202110271319A CN 113049988 A CN113049988 A CN 113049988A
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- 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
- G01R31/60—Identification of wires in a multicore cable
Abstract
The invention discloses a method and a device for identifying an AC/DC cable, electronic equipment and a storage medium, wherein the method comprises the following steps: the method for identifying the AC/DC cable comprises the following steps: step S1, acquiring the voltage type of the target cable from one end of the target cable; step S2, selecting a corresponding gear on a line inspection instrument according to the voltage type and starting the line inspection instrument; step S3, obtaining an optimal periodic frequency by adjusting the variable resistance of the line detector, wherein a buzzer of the line detector can generate periodic sound according to the optimal periodic frequency; step S4, detecting the current value of the cable to be detected in the cable end to be detected; and step S5, determining whether the cable to be tested and the target cable are the same cable or not according to the jump situation of the current value of the cable to be tested, the periodic sound of a buzzer of the cable checking instrument and the corresponding optimal periodic frequency. The tool and the method provided by the invention can quickly and safely identify the cable.
Description
Technical Field
The invention relates to the technical field of AC/DC cable identification, in particular to a method and a device for identifying AC/DC cables, electronic equipment and a storage medium.
Background
The secondary operation of the power system, especially the maintenance work of the secondary equipment power supply, such as the transformation of power equipment, the change of the power supply mode of communication equipment, the need of retreating to remove power cables or the change of connecting power cables, and the like, often needs to cut off the power supply of the equipment.
At present, a generally adopted safer method is to disconnect a power switch on an equipment side, remove a power line on the equipment side, identify a cable to be removed on the power screen side according to a cable label identifier and the appearance of the cable, and pull down a corresponding switch on the power screen side. But equipment and power screen often are separated from far away, and factors such as label sign drops, power cable is intensive can all increase the degree of difficulty that power alternating current-direct current cable discerned moreover, increase the risk of mistake outage at fortune equipment power simultaneously.
At present, instruments and meters in related aspects are not available in the market and are used for identifying and detecting cables, and the cable checking work is always a difficult problem which troubles field operators. Therefore, a cable inspection device is planned to be developed, so that the cable to be detached can be rapidly and safely identified, and the risk of mistakenly cutting off the power supply is reduced from the technical level.
Disclosure of Invention
The invention provides a method and a device for identifying an alternating current/direct current cable, electronic equipment and a storage medium, and solves the technical problem that the workload and difficulty are high when the power supply of the secondary equipment is overhauled at present.
In a first aspect, the present invention provides a method for identifying an ac/dc cable, including:
step S1, acquiring the voltage type of the target cable from one end of the target cable;
step S2, selecting a corresponding gear on a line inspection instrument according to the voltage type and starting the line inspection instrument;
step S3, obtaining an optimal periodic frequency by adjusting the variable resistance of the line detector, wherein a buzzer of the line detector can generate periodic sound according to the optimal periodic frequency;
step S4, detecting the current value of the cable to be detected in the cable end to be detected;
and step S5, determining whether the cable to be tested and the target cable are the same cable or not according to the jump situation of the current value of the cable to be tested, the periodic sound of a buzzer of the cable checking instrument and the corresponding optimal periodic frequency.
Optionally, the step S2 includes:
if the voltage type of the target cable is direct current, selecting a direct current gear of the line inspection instrument;
and if the voltage type of the target cable is alternating current, selecting an alternating current gear of the line inspection instrument.
Optionally, if the voltage type of the target cable is dc, after selecting the dc gear of the line inspection instrument, the method further includes:
and judging whether the target cable is a single cable or not, if so, connecting the cable checking instrument and the cable to be tested at the end of the cable to be tested with a ground wire.
Optionally, the step S5 includes:
judging whether the current value of the cable to be tested is in periodic jumping of the optimal periodic frequency or not according to the periodic sound of a buzzer of the cable inspection instrument and the corresponding optimal periodic frequency;
if so, determining that the cable to be tested at the end of the cable to be tested and the target cable are the same cable;
if not, the current cable to be tested is removed, and the step S4 is executed on the new cable to be tested.
In a second aspect, the present invention provides an apparatus for identifying ac/dc cables, including:
the voltage module is used for acquiring the voltage type of a target cable from one end of the target cable;
the gear selection module is used for selecting a corresponding gear on the line inspection instrument according to the voltage type and starting the line inspection instrument;
the period module is used for obtaining the optimal period frequency by adjusting the variable resistance of the line inspection instrument,
the buzzer module is used for generating periodic sound according to the optimal periodic frequency;
the current module is used for detecting the current value of the cable to be detected in the end of the cable to be detected;
and the judging module is used for determining whether the cable to be tested and the target cable are the same cable or not according to the jump condition of the current value of the cable to be tested, the periodic sound of the buzzer module and the corresponding optimal periodic frequency.
Optionally, the gear selection module includes:
the direct-current gear sub-module is used for selecting a direct-current gear if the voltage type of the target cable is direct current;
and the alternating current gear sub-module is used for selecting an alternating current gear if the voltage type of the target cable is alternating current.
Optionally, the apparatus further comprises:
and the grounding module is used for judging whether the target cable is a single cable or not after the direct current gear module is executed, and if so, the cable to be detected at the cable end to be detected and the cable checking instrument need to be connected with a ground wire.
Optionally, the determining module includes:
the judging submodule is used for judging whether the current value of the cable to be tested is in periodic jumping of the optimal periodic frequency or not according to the periodic sound of the buzzer module and the corresponding optimal periodic frequency; if yes, executing a determining submodule; if not, executing a retest submodule;
the determining submodule is used for determining that the cable to be tested at the cable end to be tested and the target cable are the same cable;
and the retesting submodule is used for rejecting the current cable to be tested and executing the current module on the new cable to be tested.
In a third aspect, the present application provides an electronic device comprising a processor and a memory, wherein the memory stores computer readable instructions, and the computer readable instructions, when executed by the processor, perform the steps of the method as provided in the first aspect.
In a fourth aspect, the present application provides a storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method as provided in the first aspect above.
According to the technical scheme, the invention has the following advantages: the invention provides a method for identifying an alternating current/direct current cable, which comprises the steps of obtaining a voltage type of a target cable from one end of the target cable through a step S1, selecting a corresponding gear on a cable inspection instrument according to the voltage type and starting the cable inspection instrument, a step S3, obtaining an optimal cycle frequency by adjusting a variable resistor of the cable inspection instrument, enabling a buzzer of the cable inspection instrument to generate periodic sound according to the optimal cycle frequency, a step S4, detecting a current value of the cable to be detected at the end of the cable to be detected, a step S5, determining whether the cable to be detected and the target cable are the same cable or not according to the jumping condition of the current value of the cable to be detected, the periodic sound of the buzzer of the cable inspection instrument and the corresponding optimal cycle frequency, and providing a tool and a method for rapidly and safely identifying the cable when a maintainer carries out related maintenance work on the cable, the technical problem that the workload and the difficulty are high when the secondary equipment power supply is overhauled at present is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a flowchart illustrating steps of a first embodiment of a method for AC/DC cable identification according to the present invention;
FIG. 2 is a flowchart illustrating steps of a second embodiment of a method for AC/DC cable identification according to the present invention;
FIG. 3 is a schematic diagram of a circuit logic structure of the line tester according to the embodiment of the present invention;
FIG. 4 is a flowchart illustrating an embodiment of a method for identifying AC/DC cables for checking a power cable scene of a decommissioned device according to the present invention;
FIG. 5 is a flowchart illustrating an embodiment of the AC/DC cable identification method of the present invention in checking a power cable scenario of an operating device;
FIG. 6 is a flowchart illustrating an embodiment of a method for identifying AC/DC cables in checking a cable scene without connection according to the present invention;
fig. 7 is a block diagram of an embodiment of an ac/dc cable identification apparatus according to the present invention.
Detailed Description
The embodiment of the invention provides a method and a device for identifying an alternating current/direct current cable, electronic equipment and a storage medium, which are used for solving the technical problem that the workload and difficulty are high during the maintenance work of a power supply of the conventional secondary equipment.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In a first embodiment, referring to fig. 1, fig. 1 is a flowchart illustrating a first step of a first embodiment of a method for identifying an ac/dc cable according to the present invention, including:
step S101, acquiring a voltage type of a target cable from one end of the target cable;
step S102, selecting a corresponding gear on a line inspection instrument according to the voltage type and starting the line inspection instrument;
step S103, obtaining an optimal periodic frequency by adjusting a variable resistor of the line detector, wherein a buzzer of the line detector generates periodic sound according to the optimal periodic frequency;
step S104, detecting the current value of the cable to be tested in the cable end to be tested;
and S105, determining whether the cable to be tested and the target cable are the same cable or not according to the jump situation of the current value of the cable to be tested, the periodic sound of a buzzer of the cable checking instrument and the corresponding optimal periodic frequency.
In the embodiment of the present invention, through step S1, the voltage type of the target cable is obtained from one end of the target cable, and in step S2, according to the voltage type, selecting a corresponding gear on the line inspection instrument and starting the line inspection instrument, step S3, obtaining the optimal cycle frequency by adjusting the variable resistance of the line inspection instrument, the buzzer of the cable inspection instrument makes periodic sounds according to the optimal periodic frequency, step S4, detects the current value of the cable to be tested at the end of the cable to be tested, step S5, and determining whether the cable to be detected and the target cable are the same cable or not according to the jump condition of the current value of the cable to be detected, the periodic sound of a buzzer of the cable inspection instrument and the corresponding optimal periodic frequency, and providing an AC/DC cable identification method, and providing a tool and a method for quickly and safely identifying the cable for a maintainer during cable-related maintenance work.
In a second embodiment, referring to fig. 2, fig. 2 is a flowchart illustrating steps of a second embodiment of a method for identifying an ac/dc cable according to the present invention, including:
step S201, acquiring a voltage type of a target cable from one end of the target cable;
it should be noted that the target cable in the step refers to a cable at a known device end, and the cable can be directly identified as belonging to the known device end;
the cable to be detected refers to a cable which is unknown at the power supply, namely a cable which needs to be identified, the unknown cable at the power supply does not determine the equipment to which the unknown cable belongs, and the equipment to which the unknown cable at the power supply belongs needs to be identified by the identification method.
In the embodiment of the invention, whether the target cable has voltage or not can be detected from one end of the target cable through the voltmeter, and if the target cable has voltage, whether the target cable has alternating current voltage or direct current voltage needs to be detected.
Step S202, selecting a corresponding gear on a line inspection instrument according to the voltage type and starting the line inspection instrument;
in an optional embodiment, if the voltage type of the target cable is alternating current, an alternating current gear of the line inspection instrument is selected;
the alternating current is a current whose current direction changes periodically with time, and the average current in one cycle is zero. Unlike direct current, its direction changes over time without the direct current changing periodically.
When the voltage of the cable to be tested is alternating current, the alternating current gear of the cable inspection instrument is selected, the direct current and the alternating current are two different currents, and the correct gear is selected to ensure that the cable can be identified more safely and more smoothly.
If the voltage type of the target cable is direct current, selecting a direct current gear of the line inspection instrument;
the circuit through which the direct current passes is called a direct current circuit, and is a closed conductive loop formed by a direct current power supply and a resistor. In the direct current circuit, a constant electric field is formed. Outside the power supply, positive charges flow from a high potential to a low potential through a resistor, and in the power supply, under the action of non-electrostatic force of the power supply, the static electricity is overcome, and then the positive charges reach the high potential from the low potential, and the circulation is carried out, so that a closed current line is formed.
In an optional embodiment, if the voltage type of the target cable is dc, after selecting the dc level of the line tester, the method further includes:
and judging whether the target cable is a single cable or not, if so, connecting the cable checking instrument and the cable to be tested at the end of the cable to be tested with a ground wire.
If the voltage type of the target cable is direct-current voltage and the target cable is a single cable, connecting the cable to be detected at the cable end to be detected and the cable inspection instrument with a ground wire to form a loop, so that the safety of the identification process is ensured, and the detection can be carried out;
step S203, obtaining an optimal periodic frequency by adjusting a variable resistor of the line detector, wherein a buzzer of the line detector generates periodic sound according to the optimal periodic frequency;
referring to fig. 3, fig. 3 is a circuit logic structure diagram of a line tester according to an embodiment of the present invention, where ICI 555 is a 555 timer chip, GND is ground (port 1) of the 555 chip, TL is trigger input (port 2) of the 555 chip, OUT is output (port 3) of the 555 chip, RST is reset (port 4) of the 555 chip, CO is voltage control (port 5) of the 555 chip, TH is threshold input (port 6) of the 555 chip, D is discharge end (port 7) of the 555 chip, VCC is power supply (port 8) of the 555 chip, 9V is a 9V battery, K1 is a power switch, K2 is a multi-contact switch, C1 and C2 are capacitors, R1 is a variable resistor, R2 and R3 are variable dc loads, and R4 is an ac variable load; BL is the buzzer, and LED is emitting diode, KR1 is the relay, A, B is the detection junction.
It should be noted that the line inspection instrument is composed of 1 555 timer, 1 battery, 1 power switch, 1 multi-contact switch, 2 capacitors, 1 variable resistor, 2 variable direct-current loads, 1 variable alternating-current load, 1 buzzer, 1 light-emitting diode and 1 relay.
The working principle of the internal circuit of the line inspection instrument is that the circuit is based on a direct feedback type 555 astable circuit. When the power switch K1 is turned on, the output end OUT of the 555 timer is set to be 1, the buzzer sounds, the LED lamp is on, the relay is switched to act, the capacitor C1 is charged through the variable resistor R1, the threshold input TH of the 555 chip and the voltage of the trigger input TL of the 555 chip are gradually increased from 0, when the power VCC of the 555 chip rises to 2/3, the OUT of the 555 timer is set to 0, the buzzer does not sound, the LED lamp does not light and the relay is switched to operate, at the moment, the capacitor C1 discharges through the R1, the voltage of the threshold input TH of the 555 chip and the voltage of the trigger input TL of the 555 chip gradually drop, when the voltage is reduced to the power supply VCC of the 555 chip of 1/3, the output terminal OUT of the 555 timer is set to 1, the buzzer sounds, the LED lamp is on, the relay is switched to operate, the capacitor C1 is charged through the variable resistor R1, by the circulation, rectangular waves are generated at the OUT port of the output end of the 555 timer, and the relay can also perform periodic switching action.
The period T of the circuit is 1.385(R1 × C1). By the aid of the adjustable resistor R1, the action period of the relay can be adjusted as required; the device comprises a buzzer and an LED lamp (periodically sounding and lighting), wherein the periodic sounding of the buzzer can better assist in judging whether the current value of the cable to be detected is in periodic jumping or not, and a period is provided for judging whether the current value of the cable to be detected is in periodic jumping or not.
K2 is a gear selection switch, which can select a DC gear, an AC gear and an active gear according to the use scene, the DC gear and the active gear are connected in series to form a variable DC load, the AC gear is connected in series to form a variable AC load, and the variable DC load R2, the variable DC load R3 and the variable AC load R4 can be adjusted to generate proper current values to facilitate observation of a clamp ammeter in the use process.
In the embodiment of the invention, the optimal periodic frequency and the optimal power-off current value can be obtained by adjusting the variable resistor of the line tester and the variable direct current load of the line tester; the optimum cycle frequency is adjusted by the frequency of the buzzer sound and the frequency of the LED lamp flickering, and is usually set to be 1s for easy observation.
In a specific reality, a buzzer of the cable inspection instrument generates periodic sound according to the optimal periodic frequency, and the optimal periodic frequency can better assist in judging whether the current value of the cable to be tested is in periodic jump of the optimal frequency; the optimal power-off current value is used for ensuring that the detection process can be safely carried out, when the actual current in the detection process is equal to or greater than the power-off current value, a power-off instruction is triggered, the line inspection instrument responds to the power-off instruction triggered to automatically cut off the power, so that the detection process can be safely carried out, and the key and the purpose of the invention are to ensure that the detection can be safely carried out.
Step S204, detecting the current value of the cable to be detected in the cable end to be detected.
In the embodiment of the invention, the current value of the cable to be detected at the end of the cable to be detected can be detected through the clamp-type ammeter, and the detection result is used for judging whether the cable at the other end and the cable to be detected are the same cable or not.
Step S205, judging whether the current value of the cable to be tested is in periodic jump of the optimal periodic frequency or not according to the periodic sound of the buzzer of the cable inspection instrument and the corresponding optimal periodic frequency; if so, determining that the cable to be tested at the end of the cable to be tested and the target cable are the same cable; if not, the current cable to be tested is removed, and the step S204 is executed on the new cable to be tested.
In the embodiment of the invention, whether the cable to be tested at the end of the cable to be tested and the target cable are the same cable can be judged through whether the current value is in the periodic jump of the optimal periodic frequency, whether the current value of the cable to be tested is in the periodic jump of the optimal periodic frequency is judged according to the periodic sound of a buzzer of a cable inspection instrument and the optimal periodic frequency corresponding to the periodic sound, and if yes, the cable to be tested at the end of the cable to be tested and the target cable are determined to be the same cable; if not, the current cable to be tested is removed, and the step S204 is executed on the new cable to be tested.
In the embodiment of the present invention, through step S1, the voltage type of the target cable is obtained from one end of the target cable, and in step S2, according to the voltage type, selecting a corresponding gear on the line inspection instrument and starting the line inspection instrument, step S3, obtaining the optimal cycle frequency by adjusting the variable resistance of the line inspection instrument, the buzzer of the cable inspection instrument makes periodic sounds according to the optimal periodic frequency, step S4, detects the current value of the cable to be tested at the end of the cable to be tested, step S5, and determining whether the cable to be detected and the target cable are the same cable or not according to the jump condition of the current value of the cable to be detected, the periodic sound of a buzzer of the cable inspection instrument and the corresponding optimal periodic frequency, and providing an AC/DC cable identification method, and providing a tool and a method for quickly and safely identifying the cable for a maintainer during cable-related maintenance work.
In a third embodiment, referring to fig. 4, fig. 4 is a flowchart of an embodiment of a method for identifying an ac/dc cable according to the present invention for checking a power cable scene of a retirement device, where the method includes:
a is a wire checking instrument, B is returning equipment, C is a clamp-on ammeter, D is a distribution panel, E is a cable with an unknown path, and K1, K2, K3, K4 and K5 are cables at the end of a cable to be tested.
The method comprises the following steps:
in step S301, the power switch of the return equipment is turned off at the return equipment position.
In step S302, a suitable gear (in the figure, a dc gear) is selected according to the voltage condition of the device. And connecting a detection wiring terminal of the line inspection instrument A to a power line of the retreating equipment.
And step S303, a power switch of the line inspection instrument A is turned on, a proper period frequency is generated by adjusting the variable resistor R1, and a proper on-off current is generated by adjusting the variable direct current load R3.
And step S304, detecting the cable needing to be identified by using the cable C on the side of the distribution panel D, namely the other end of the power cable, comparing the periodic sound of the buzzer if the value of the current on the clamp ammeter C is periodically changed from 0 to a fixed value, and judging that the detected cable is the power cable of the equipment B for returning if the frequency is consistent.
As shown in fig. 4, this is a scenario of removing a power cable of a return device, and since the return device is far away from a distribution board, and a power line route of the device is complex and difficult to smooth out, we aim to identify the power cable of the return device by detecting 2 positions of the return device and the distribution board.
In a fourth embodiment, referring to fig. 5, fig. 5 is a flowchart of an embodiment of the method for identifying an ac/dc cable according to the present invention in checking a power cable scene of an operating device, including:
a is a wire checking instrument, B is returning equipment, C is a clamp-on ammeter, D is a distribution panel, E is a cable with an unknown path, and K1, K2, K3, K4 and K5 are cables at the end of a cable to be tested.
The method comprises the following steps:
step S401, first, find the power connection terminal of the device corresponding to the power cable to be identified.
Step S402, selecting a proper gear (in the figure, the dc gear) according to the voltage condition of the device, and connecting the detection connection terminal of the line tester a to the power connection terminal corresponding to the device.
And step S403, turning on a power switch of the line tester A, generating a proper period frequency by adjusting the variable resistor R1, and generating a proper on-off current by adjusting the variable direct current load R3.
In step S404, a cable to be identified is detected by using C on the distribution board D side, that is, the other end of the power cable, and since the line inspection instrument a and the return equipment B form a parallel circuit (I cable is I device + I instrument), if the value of the clamp ammeter C is periodically changed between two fixed values and the periodic sound of the buzzer is compared, if the frequencies are consistent, it can be determined that the detected cable is the power cable of the return equipment B.
As shown in fig. 5, this is a scenario of checking the power cable of the device under operation, and our objective is to identify the power cable of the device on the side of the power distribution panel without affecting the operation of the device.
In a fifth embodiment, referring to fig. 6, fig. 6 is a flowchart of an embodiment of checking a cable scene without connection according to the ac/dc cable identification method of the present invention, including:
a is a cable inspection instrument, B is a clamp-on ammeter, and C is a cable with an unknown path.
The method comprises the following steps:
in step S501, one end of a cable to be identified is first found.
Step S502, the cable inspection instrument A is adjusted to an active gear, one end of two detection wiring terminals of the cable inspection instrument A is connected with a cable to be detected, and the other end of the two detection wiring terminals is grounded.
And step S503, turning on a power switch of the line tester A, generating a proper cycle frequency by adjusting the variable resistor R1, and generating a proper on-off current by adjusting the variable direct current load R3.
And step S504, grounding the cable to be identified to form a loop on the other side of the cable to be detected, detecting the cable to be identified by using the clamp ammeter B, comparing periodic noises of the buzzer if the value of the current on the clamp ammeter B is periodically changed from 0 to a fixed value, and judging that the detected cable is a power cable of the decommissioning equipment if the frequencies are consistent.
As shown in fig. 6, this is a scenario for checking cables without connection, and the working process encounters a lot of cables mixed together, we know the positions of the two ends of the cables, but the path in the middle of the cables is not clear, and it is necessary to identify the corresponding cables.
Referring to fig. 7, fig. 7 is a block diagram of an embodiment of an apparatus for identifying an ac/dc cable according to the present invention, including:
a voltage module 101, configured to obtain a voltage type of a target cable from one end of the target cable;
the gear selection module 102 is used for selecting a corresponding gear on a line inspection instrument according to the voltage type and starting the line inspection instrument;
the period module 103 is used for obtaining an optimal period frequency by adjusting the variable resistor of the line inspection instrument;
a buzzer module 104, configured to generate periodic sounds according to the optimal periodic frequency;
the current module 105 is used for detecting the current value of the cable to be detected in the end of the cable to be detected;
and the judging module 106 is configured to determine whether the cable to be tested and the target cable are the same cable according to the jump condition of the current value of the cable to be tested, the periodic sound of the buzzer module and the optimal periodic frequency corresponding to the periodic sound.
In an alternative embodiment, the gear selection module 102 includes:
the direct-current gear sub-module is used for selecting a direct-current gear if the voltage type of the target cable is direct current;
and the alternating current gear sub-module is used for selecting an alternating current gear if the voltage type of the target cable is alternating current.
In an optional embodiment, the apparatus further comprises:
and the grounding module is used for judging whether the target cable is a single cable or not after the direct current gear module is executed, and if so, the cable to be detected at the cable end to be detected and the cable checking instrument need to be connected with a ground wire.
In an alternative embodiment, the determining module 106 includes:
the judging submodule is used for judging whether the current value of the cable to be tested is in periodic jumping of the optimal periodic frequency or not according to the periodic sound of the buzzer module and the corresponding optimal periodic frequency; if yes, executing a determining submodule; if not, executing a retest submodule;
the determining submodule is used for determining that the cable to be tested at the cable end to be tested and the target cable are the same cable;
and the retesting submodule is used for rejecting the current cable to be tested and executing the current module on the new cable to be tested.
The embodiment of the present invention further provides an electronic device, which includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method for automatically reading the water meter value according to any one of the embodiments.
The embodiment of the invention also provides a computer storage medium, wherein a computer program is stored on the computer storage medium, and when the computer program is executed by the processor, the method for automatically reading the water meter value is realized according to any embodiment.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the apparatus described above may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for identifying an AC/DC cable is characterized by comprising the following steps:
step S1, acquiring the voltage type of the target cable from one end of the target cable;
step S2, selecting a corresponding gear on a line inspection instrument according to the voltage type and starting the line inspection instrument;
step S3, obtaining an optimal periodic frequency by adjusting the variable resistance of the line detector, wherein a buzzer of the line detector can generate periodic sound according to the optimal periodic frequency;
step S4, detecting the current value of the cable to be detected in the cable end to be detected;
and step S5, determining whether the cable to be tested and the target cable are the same cable or not according to the jump situation of the current value of the cable to be tested, the periodic sound of a buzzer of the cable checking instrument and the corresponding optimal periodic frequency.
2. The method for identifying ac/dc cable according to claim 1, wherein the step S2 includes:
if the voltage type of the target cable is direct current, selecting a direct current gear of the line inspection instrument;
and if the voltage type of the target cable is alternating current, selecting an alternating current gear of the line inspection instrument.
3. The method according to claim 2, wherein if the voltage type of the target cable is dc, after selecting the dc level of the line tester, the method further comprises:
and judging whether the target cable is a single cable or not, if so, connecting the cable checking instrument and the cable to be tested at the end of the cable to be tested with a ground wire.
4. The method for identifying AC/DC cables of any one of claims 1-3, wherein said step S5 includes:
judging whether the current value of the cable to be tested is in periodic jumping of the optimal periodic frequency or not according to the periodic sound of a buzzer of the cable inspection instrument and the corresponding optimal periodic frequency;
if so, determining that the cable to be tested at the end of the cable to be tested and the target cable are the same cable;
if not, the current cable to be tested is removed, and the step S4 is executed on the new cable to be tested.
5. An apparatus for ac/dc cable identification, comprising:
the voltage module is used for acquiring the voltage type of a target cable from one end of the target cable;
the gear selection module is used for selecting a corresponding gear on the line inspection instrument according to the voltage type and starting the line inspection instrument;
the period module is used for obtaining the optimal period frequency by adjusting the variable resistor of the line inspection instrument;
the buzzer module is used for generating periodic sound according to the optimal periodic frequency;
the current module is used for detecting the current value of the cable to be detected in the end of the cable to be detected;
and the judging module is used for determining whether the cable to be tested and the target cable are the same cable or not according to the jump condition of the current value of the cable to be tested, the periodic sound of the buzzer module and the corresponding optimal periodic frequency.
6. The device for AC/DC cable identification according to claim 5, wherein the gear selection module comprises:
the direct-current gear sub-module is used for selecting a direct-current gear if the voltage type of the target cable is direct current;
and the alternating current gear sub-module is used for selecting an alternating current gear if the voltage type of the target cable is alternating current.
7. The device for AC/DC cable identification according to claim 6, further comprising:
and the grounding module is used for judging whether the target cable is a single cable or not after the direct current gear module is executed, and if so, the cable to be detected at the cable end to be detected and the cable checking instrument need to be connected with a ground wire.
8. The apparatus according to claim 5 or 6, wherein the determining module comprises:
the judging submodule is used for judging whether the current value of the cable to be tested is in periodic jumping of the optimal periodic frequency or not according to the periodic sound of the buzzer module and the corresponding optimal periodic frequency; if yes, executing a determining submodule; if not, executing a retest submodule;
the determining submodule is used for determining that the cable to be tested at the cable end to be tested and the target cable are the same cable;
and the retesting submodule is used for rejecting the current cable to be tested and executing the current module on the new cable to be tested.
9. An electronic device comprising a processor and a memory, the memory storing computer readable instructions that, when executed by the processor, perform the method of any of claims 1-4.
10. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the method according to any of claims 1-4.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110271319.8A CN113049988A (en) | 2021-03-12 | 2021-03-12 | Method and device for identifying AC/DC cable, electronic equipment and storage medium |
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| CN202110271319.8A CN113049988A (en) | 2021-03-12 | 2021-03-12 | Method and device for identifying AC/DC cable, electronic equipment and storage medium |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4369435A (en) * | 1979-07-27 | 1983-01-18 | Hochiki Kabushiki Kaisha | Fire detector and fire alarm system having circuitry to detect removal of one or more detectors at a signal station |
| WO1994029736A1 (en) * | 1993-06-11 | 1994-12-22 | Ll Instrument Ab | Method and device for identifying individual electric conductors |
| CN204425354U (en) * | 2014-03-18 | 2015-06-24 | 余文智 | Communication line wire searcher |
| CN104865471A (en) * | 2015-05-26 | 2015-08-26 | 福州福光电子有限公司 | Low voltage live-line cable pair check meter |
-
2021
- 2021-03-12 CN CN202110271319.8A patent/CN113049988A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4369435A (en) * | 1979-07-27 | 1983-01-18 | Hochiki Kabushiki Kaisha | Fire detector and fire alarm system having circuitry to detect removal of one or more detectors at a signal station |
| WO1994029736A1 (en) * | 1993-06-11 | 1994-12-22 | Ll Instrument Ab | Method and device for identifying individual electric conductors |
| CN204425354U (en) * | 2014-03-18 | 2015-06-24 | 余文智 | Communication line wire searcher |
| CN104865471A (en) * | 2015-05-26 | 2015-08-26 | 福州福光电子有限公司 | Low voltage live-line cable pair check meter |
| CN204649868U (en) * | 2015-05-26 | 2015-09-16 | 福州福光电子有限公司 | Low-voltage electric cable pair verifies instrument |
Non-Patent Citations (1)
| Title |
|---|
| 莫骥: "一种交直流低压线缆查线仪的制作和应用", 《机电信息》 * |
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