CN113514781A - Multi-wire core comparison device - Google Patents
Multi-wire core comparison device Download PDFInfo
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- CN113514781A CN113514781A CN202110455707.1A CN202110455707A CN113514781A CN 113514781 A CN113514781 A CN 113514781A CN 202110455707 A CN202110455707 A CN 202110455707A CN 113514781 A CN113514781 A CN 113514781A
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
Abstract
The invention discloses a multi-wire core comparison device, which comprises: a resistance testing module; the n first wiring ends are used for connecting the first ends of the wire cores to be aligned; the n second terminals are used for connecting the second ends of the wire cores to be aligned; the first end of the kth first switch is electrically connected with the kth first terminal, and the second end of the kth first switch is electrically connected with the first end of the resistance testing module; the first end of the kth second switch is electrically connected with the kth second terminal, and the second end of the kth second switch is grounded; and the control module is used for conducting one of the n first switches and one of the n second switches, and is used for determining that a first terminal corresponding to the currently conducted first switch and a second terminal corresponding to the currently conducted second switch are paired and completed if the result of measuring the resistance by the resistance testing module is zero. The invention can improve the efficiency of wire core alignment.
Description
Technical Field
The embodiment of the invention relates to a wire core aligning technology, in particular to a multi-wire core comparison device.
Background
Along with the development of power technology, the quantity of cable is more and more, contains many sinle silks in the cable, and the length of cable is longer usually, and constructor need determine the both ends of same sinle silk, also need operate to the line.
In recent years, technical improvement of substations of various power supply offices and project engineering of newly-launched substations are huge, and the workload of alignment of related secondary control cables is huge. The universal meter is often adopted on the spot to align the wires, the ground is required to be used as a reference, one wire core of each core needs to be connected once, the labor and time are wasted, the efficiency is low, and misdelivery and misinformation can easily occur in the two-end conversation process.
Disclosure of Invention
The invention provides a multi-wire core comparison device, which is used for improving the wire core alignment efficiency.
The embodiment of the invention provides a multi-wire core comparison device, which comprises: the resistance testing module is used for measuring resistance;
the n first wiring ends are used for connecting the first ends of the wire cores to be aligned; n is greater than or equal to 2; the n second terminals are used for connecting the second ends of the wire cores to be aligned; the first end of the kth first switch is electrically connected with the kth first terminal, the second end of the kth first switch is electrically connected with the first end of the resistance testing module, and the second end of the resistance testing module is grounded; k is less than or equal to n;
the first end of the kth second switch is electrically connected with the kth second terminal, and the second end of the kth second switch is grounded; and the control module is used for conducting one of the n first switches and one of the n second switches, and is used for determining that a first terminal corresponding to the currently conducted first switch and a second terminal corresponding to the currently conducted second switch are paired and completed if the result of measuring the resistance by the resistance testing module is zero.
Optionally, the control module is configured to turn on a first switch corresponding to a first terminal that is not paired, and turn on a second switch corresponding to a second terminal that is not paired in sequence until a result of measuring the resistance by the resistance testing module is zero;
or the control module is used for conducting a second switch corresponding to the second terminal which is not aligned, and sequentially conducting a first switch corresponding to the first terminal which is not aligned until the result of the resistance measurement module for measuring the resistance is zero.
Optionally, the control module includes a first controller, a second controller, n first relay coils corresponding to the n first switches one to one, and n second relay coils corresponding to the n second switches one to one; the first controller is used for controlling the excitation states of the n first relay coils, and the first relay coils are used for controlling the conduction states of the corresponding first switches; the second controller is configured to control excitation states of the n second relay coils, and the second relay coils are configured to control conduction states of corresponding second switches.
Optionally, the first controller is in wireless communication connection with the second controller.
Optionally, the multi-wire core comparison device further comprises: the system comprises an electricity testing relay coil, a first electricity testing relay normally closed switch, an electricity testing relay normally open switch and an alarm module; the first end of the electricity testing relay coil is electrically connected with the second ends of the n first switches, the second end of the electricity testing relay coil is grounded, and the electricity testing relay coil is used for controlling the conduction states of the normally closed switch of the first electricity testing relay and the normally open switch of the electricity testing relay; the second ends of the n first switches are electrically connected with the first end of the resistance testing module through the normally closed switch of the first electricity testing relay; the first end of electricity inspection relay normally open switch is used for inserting external power source's first end, the second end of electricity inspection relay normally open switch with alarm module's first end electricity is connected, alarm module's second end is used for inserting external power source's second end.
Optionally, the multi-wire core comparison device further comprises: the first normally closed switch of the electricity testing relay is electrically connected with the first end of the resistance testing module through the second normally closed switch of the electricity testing relay; and the coil of the electricity testing relay is also used for controlling the conduction state of the normally closed switch of the second electricity testing relay.
Optionally, the alarm module comprises: at least one of an acoustic alarm module, an optical alarm module, and a vibration alarm module.
Optionally, the multi-wire core comparison device further comprises: the resistance testing module is grounded through the first linkage switch.
Optionally, the multi-wire core comparison device further comprises: the second end of the electricity testing relay coil is grounded through the second linkage switch; the second linkage switch is linked with the first linkage switch, and the conduction states of the second linkage switch and the first linkage switch are different.
Optionally, the multi-wire core comparison device further comprises: and the display module is electrically connected with the resistance testing module.
According to the technical scheme of the embodiment of the invention, the adopted multi-wire core comparison device comprises: the resistance testing module is used for measuring resistance; the n first wiring ends are used for connecting the first ends of the wire cores to be aligned; n is greater than or equal to 2; the n second terminals are used for connecting the second ends of the wire cores to be aligned; the first end of the kth first switch is electrically connected with the kth first terminal, the second end of the kth first switch is electrically connected with the first end of the resistance test module 101, and the second end of the resistance test module 101 is grounded; k is less than or equal to n; the first end of the kth second switch is electrically connected with the kth second terminal, and the second end of the kth second switch is grounded; and the control module is used for conducting one of the n first switches and one of the n second switches, and is used for determining that the wire core to be paired between the first terminal corresponding to the currently conducted first switch and the second terminal corresponding to the currently conducted second switch is paired if the result of measuring the resistance by the resistance testing module is zero. The resistance test module tests that the resistance result is zero, which indicates that a conduction path exists between the selected first switch and the selected second switch, indicates that the connection between the first terminal corresponding to the selected first switch and the second terminal corresponding to the selected second switch is the same wire core to be paired, and indicates that the wire core to be paired is paired; if the resistance result tested by the resistance testing module is not zero, it indicates that one end of the resistance testing module is suspended, and the other end is grounded, which also indicates that the wire core to be aligned connected with the first terminal corresponding to the selected first switch and the wire core to be aligned connected with the second terminal corresponding to the selected second switch are not the same wire core to be aligned at the moment, and indicates that the wire alignment is not completed, the control module can be used for selecting the rest of the first switches or the second switches to continue the wire alignment until all the wire cores to be aligned are aligned. In the embodiment, the wire aligning operation of the wire cores to be aligned can be automatically completed only by connecting the wire once, so that the workload during wire aligning is greatly reduced, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic circuit diagram of a multi-wire core comparison apparatus according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a circuit structure of a multi-wire core comparison device according to an embodiment of the present invention, the multi-wire core comparison device being electrically connected to a wire core to be paired;
FIG. 3 is a schematic diagram of a circuit structure of another multi-wire core comparison device according to an embodiment of the present invention electrically connected to a wire core to be paired;
FIG. 4 is a schematic diagram of a circuit structure of a multi-wire core comparison device according to another embodiment of the present invention electrically connected to a wire core to be paired;
fig. 5 is a schematic circuit structure diagram of another multi-wire core comparison device provided by the embodiment of the invention and a wire core to be paired, which is electrically connected.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic circuit structure diagram of a multi-wire core comparison device according to an embodiment of the present invention, fig. 2 is a schematic circuit structure diagram of an electrical connection between the multi-wire core comparison device according to the embodiment of the present invention and a wire core to be paired, and referring to fig. 1 and fig. 2, the multi-wire core comparison device includes: a resistance test module 101 for measuring resistance; n first terminals (1P, 2P, … … nP) for connecting a first end of the wire core 20 to be paired; n is greater than or equal to 2; n second terminals (1Q, 2Q, … … nQ) for connecting the second ends of the wire cores 20 to be paired; n first switches (ZJK1, ZJK2, … … ZJKn), wherein the first end of the kth first switch is electrically connected with the kth first terminal, the second end of the kth first switch is electrically connected with the first end of the resistance test module 101, and the second end of the resistance test module 101 is grounded; k is less than or equal to n; n second switches (ZJD1, ZJD2, … … ZJDn), a first end of the kth second switch being electrically connected to the kth second terminal, a second end of the kth second switch being connected to ground; and the control module 102 is configured to turn on one of the n first switches and one of the n second switches, and is configured to determine that a first terminal corresponding to the currently-turned-on first switch and a second terminal corresponding to the currently-turned-on second switch are paired, that is, a to-be-paired wire core between the first terminal and the second terminal is paired, if a result of measuring the resistance by the resistance testing module 102 is zero.
Specifically, the resistance testing module 101 may be, for example, a resistance tester, which can measure the resistance in the loop, and specifically may include a resistor and a voltmeter connected in series; the first terminal and the second terminal may each be a post; when the multi-wire core comparison device is used for aligning wires, first ends of a plurality of wire cores in the cable are connected to a plurality of first wiring ends with the same number, and second ends of the plurality of wire cores in the cable are connected to a plurality of second wiring ends with the same number; it should be noted that the wire cores can be connected arbitrarily when being connected with the first wiring ends, but it is required to ensure that only one wire core is connected to each first wiring end, and the wire cores can be connected arbitrarily when being connected with the second wiring ends, but it is required to ensure that only one wire core is connected to each second wiring end; when the wire is aligned, the control module 102 selects any one first switch and any one second switch, closes the selected first switch and the selected second switch, opens the other first switches and the other second switches, and if the resistance test result of the resistance test module is zero at this time, it indicates that a conduction path exists between the selected first switch and the selected second switch, that is, both ends of the resistance test module are both connected to the ground, it indicates that the connection between the first terminal corresponding to the selected first switch and the second terminal corresponding to the selected second switch is the same wire core to be aligned, and it indicates that the wire core to be aligned is completed, and the corresponding first terminal and the second terminal can be marked; if the resistance result tested by the resistance testing module is not zero, it indicates that one end of the resistance testing module is suspended, and the other end is grounded, which also indicates that the wire core to be aligned connected with the first terminal corresponding to the selected first switch and the wire core to be aligned connected with the second terminal corresponding to the selected second switch are not the same wire core to be aligned at the moment, and indicates that the wire alignment is not completed, the control module can be used for selecting the rest of the first switches or the second switches to continue the wire alignment until all the wire cores to be aligned are aligned. In the embodiment, the wire aligning operation of the wire cores to be aligned can be automatically completed only by connecting the wire once, so that the workload during wire aligning is greatly reduced, and the working efficiency is improved. It should be noted that the number of n may be set by the number of cores in the cable, and this is not particularly limited in the embodiment of the present invention. The resistance test module, the n first switches and the n first connection terminals may be integrated in the first device 10, and the n second switches and the n second connection terminals may be integrated in the second device 11.
According to the technical scheme of the embodiment, the adopted multi-wire core comparison device comprises: the resistance testing module is used for measuring resistance; the n first wiring ends are used for connecting the first ends of the wire cores to be aligned; n is greater than or equal to 2; the n second terminals are used for connecting the second ends of the wire cores to be aligned; the first end of the kth first switch is electrically connected with the kth first terminal, the second end of the kth first switch is electrically connected with the first end of the resistance test module 101, and the second end of the resistance test module 101 is grounded; k is less than or equal to n; the first end of the kth second switch is electrically connected with the kth second terminal, and the second end of the kth second switch is grounded; and the control module is used for conducting one of the n first switches and one of the n second switches, and is used for determining that the wire core to be paired between the first terminal corresponding to the currently conducted first switch and the second terminal corresponding to the currently conducted second switch is paired if the result of measuring the resistance by the resistance testing module is zero. The resistance test module tests that the resistance result is zero, which indicates that a conduction path exists between the selected first switch and the selected second switch, indicates that the connection between the first terminal corresponding to the selected first switch and the second terminal corresponding to the selected second switch is the same wire core to be paired, and indicates that the wire core to be paired is paired; if the resistance result tested by the resistance testing module is not zero, it indicates that one end of the resistance testing module is suspended, and the other end is grounded, which also indicates that the wire core to be aligned connected with the first terminal corresponding to the selected first switch and the wire core to be aligned connected with the second terminal corresponding to the selected second switch are not the same wire core to be aligned at the moment, and indicates that the wire alignment is not completed, the control module can be used for selecting the rest of the first switches or the second switches to continue the wire alignment until all the wire cores to be aligned are aligned. In the embodiment, the wire aligning operation of the wire cores to be aligned can be automatically completed only by connecting the wire once, so that the workload during wire aligning is greatly reduced, and the working efficiency is improved.
Optionally, the control module 102 is configured to turn on a first switch corresponding to the first terminal that is not paired, and turn on a second switch corresponding to the second switch that is not paired in sequence until a result of the resistance measurement by the resistance test module 101 is zero.
Specifically, when the pair line starts, the control module 102 may first control the first switch ZJK1 to be turned on, and control the n second switches to be turned on in sequence until the resistance result measured by the resistance test module is zero, which indicates that the first terminal 1P and the corresponding second terminal pair line have been completed, and this process requires n times of tests at most; then selecting a second first switch 2P, and sequentially conducting second switches corresponding to n-1 second terminals which are not aligned until the resistance result measured by the resistance testing module is zero, which indicates that the alignment of the second first terminal and the corresponding second terminal is completed at the moment, and the process needs n-1 times of testing at most; that is, at most n!is needed to complete the alignment of n wire cores to be aligned! And the secondary test further improves the wire aligning efficiency of the wire core to be aligned.
Or, the control module 102 is configured to turn on the second switch corresponding to the second terminal of the incomplete alignment line, and turn on the first switch corresponding to the first terminal of the completed alignment line in sequence until the result of the resistance measurement by the resistance measurement module is zero.
Specifically, in this embodiment, when starting to perform line alignment, the control module 102 may first control the first second switch ZJD1 to be turned on, and control the n first switches to be turned on in sequence until the resistance result measured by the resistance testing module is zero, which indicates that the first second terminal 1Q has been completed with the corresponding second terminal line alignment, and this process requires n times of testing at most; then selecting a second switch 2Q, and sequentially conducting first switches corresponding to n-1 first terminals which are not aligned until the resistance result measured by the resistance testing module is zero, which indicates that the alignment of the second terminal and the corresponding first terminal is completed at the moment, and the process needs n-1 times of testing at most; that is, at most n!is needed to complete the alignment of n wire cores to be aligned! And the secondary test further improves the wire aligning efficiency of the wire core to be aligned.
Optionally, with continued reference to fig. 1 and 2, the control module 102 includes a first controller 1021, a second controller 1022, n first relay coils (ZJK11, ZJK21, … … ZJKn-11, ZJKn1) corresponding to the n first switches one by one, and n second relay coils (ZJD11, ZJD21, … … ZJDn1) corresponding to the n second switches one by one; the first controller is used for controlling the excitation states of the n first relay coils, and the first relay coils are used for controlling the conduction states of the corresponding first switches; the second controller is used for controlling the excitation states of the n second relay coils, and the second relay coils are used for controlling the conduction states of the corresponding second switches.
Specifically, the first controller 1021 and the second controller 1022 may both be microcontrollers; and the first controller 1021 and the n first relay coils are integrated in the first device 10, and the second controller 1022 and the n second relay coils are integrated in the second device 11; when a certain first switch needs to be turned on, the corresponding first relay coil can be controlled to be excited by the first controller 1021, that is, current flows in the first relay coil, so that the first switch is controlled to be turned on; when a certain second switch needs to be turned on, the second controller 1022 may control the corresponding second relay coil to be excited, that is, a current flows through the second relay coil, so as to control the second switch to be turned on. This embodiment controls each switch conducting state through the mode of relay, and the security is higher. Corresponding relay coils are controlled by the two controllers respectively, and one controller is arranged in each of the first equipment 10 and the second equipment 11, so that the design of the multi-wire core comparison device is facilitated
Optionally, the first controller 1021 is in wireless communication with the second controller 1022.
Specifically, the first controller 1021 and the second controller 1022 may communicate through a digital wireless communication technology of Lora, for example, so that a wireless comparison function may be implemented, and the communication is more accurate, which is more beneficial to improving the alignment efficiency.
Optionally, fig. 3 is a schematic circuit structure diagram of another multi-wire core comparison device provided in the embodiment of the present invention and a wire core to be paired, and referring to fig. 3, the multi-wire core comparison device further includes: an electricity testing relay coil ZJ, a first electricity testing relay normally closed switch ZJ1, an electricity testing relay normally open switch ZJ3 and an alarm module 103; the first end of the electricity testing relay coil ZJ is electrically connected with the second ends of the n first switches, the second end of the electricity testing relay coil ZJ is grounded, and the electricity testing relay coil ZJ is used for controlling the conducting state of a normally closed switch ZJ1 level electricity testing relay normally open switch ZJ3 of the first electricity testing relay; the second ends of the n first switches are electrically connected with the first end of the resistance testing module 101 through a first electricity testing relay normally-closed switch ZJ 1; the first end of the normally open switch ZJ3 of the electricity testing relay is used for being connected with the first end of an external power supply, the second end of the electricity testing point ZJ3 is electrically connected with the first end of the alarm module 103, and the second end of the alarm module 103 is used for being connected with the second end of the external power supply.
Specifically, the wire core to be tested may be electrified before detection, so that the wire core to be tested needs to be subjected to an electricity testing operation, after the wire core to be tested is connected to the first wiring terminal, the corresponding first switch can be sequentially switched on, if the wire core to be tested is electrified, the coil ZJ of the electricity testing relay is excited, so that the normally closed switch ZJ1 of the first relay is disconnected, an electric connection path between the resistance testing module and the wire core to be tested is disconnected, and the influence of the wire core to be tested on the resistance testing module due to electrification is avoided; meanwhile, the normally open switch ZJ3 of the electricity testing relay is changed from an open state to a closed state, two ends of the alarm module 103 are conducted with an external power supply, and the alarm module 103 generates an alarm signal, so that a worker is reminded of timely processing the wire core to be tested, for example, the wire core to be tested is discharged, and the external power supply can be a 220V power supply; this embodiment is through setting up electricity test relay coil, first electricity test relay normally closed switch, electricity test relay normally open switch and alarm module, can in time treat and test the electricity to the line core, promotes the security to the line.
Optionally, with continued reference to fig. 3, the multi-wire core comparison device further comprises: the second electricity testing relay normally-closed switch ZJ2, the first electricity testing relay normally-closed switch ZJ1 is electrically connected with the resistance testing module 101 through the second electricity testing relay normally-closed switch ZJ 2; the electroscopic relay coil ZJ is also used to control the conduction state of a second electroscopic relay normally closed switch ZJ 2.
Specifically, first electricity test relay normally closed switch ZJ1 and second electricity test relay normally closed switch ZJ2 are normally closed switches, and the control of the relay coil ZJ of equal test, promptly when electricity test relay coil ZJ excitation back, first electricity test relay normally closed switch ZJ1 and second electricity test relay normally closed switch ZJ2 become open state by the closed state to greatly reduced the emergence of the maloperation condition when adopting a relay normally closed switch, further improved the reliability of multiwire core comparison device work.
Optionally, the alarm module comprises: at least one of an acoustic alarm module, an optical alarm module, and a vibration alarm module.
Specifically, the acoustic alarm module may be, for example, a buzzer, and when the normally open switch ZJ3 of the electricity testing relay is closed, the buzzer works to send out sound prompt information to prompt that the wire core to be wired is electrified; the light alarm module can be an indicator light for example, when a normally open switch ZJ3 of the electricity-testing relay is closed, the indicator light works, so that light prompt information is sent out to prompt that the wire core to be wired is electrified; the vibration alarm module can be a vibrator, for example, when a normally open switch ZJ3 of an electricity testing relay is closed, the vibrator works to generate vibration, so that the wire core to be wired is prompted to be electrified; the sound alarm module, the light alarm module and the vibration alarm module have the advantages of low cost and the like, and the cost of the multi-wire core comparison device is reduced.
Optionally, fig. 4 is a schematic circuit structure diagram of another multi-wire core comparison device provided in the embodiment of the present invention and a wire core to be paired, and referring to fig. 4, the multi-wire core comparison device further includes: the first linkage switch S1 is connected to the ground through the first linkage switch S1.
Specifically, the first linkage switch S1 can be manually controlled to be turned on or turned off, and when the wire is required to be aligned, the first linkage switch S1 is turned off, and when the wire is not required to be aligned, the first linkage switch S1 is turned on, so that the resistance testing module is further protected, the resistance testing module is prevented from being damaged, and the service life of the multi-wire core comparison device is prolonged.
Optionally, with continued reference to fig. 4, the multi-wire core comparison device further comprises: a second linkage switch S2, wherein the second end of the electroscopic relay coil ZJ is grounded through a second linkage switch S2; the second link switch S2 is linked with the first link switch, and the on states of the second link switch and the first link switch are different.
Specifically, the second linkage switch S2 may be manually controlled to open or close, closing the second linkage switch S2 when a test of electricity is required, and opening the second linkage switch S2 when a test of electricity is not required, thereby avoiding interference of the test relay coil ZJ with the resistance test module 101. The second ganged switch S2 is ganged with the first ganged switch S1, that is, when the conducting state of the first ganged switch S1 is switched, the conducting state of the second ganged switch S2 is also switched, as shown in fig. 4, the button S can simultaneously control the conducting states of the first ganged switch S1 and the second ganged switch S2, in the initial state (the button S is not pressed), the second ganged switch S2 can be set to be in the closed state, the first ganged switch S1 is in the open state, so that the power can be automatically tested after the wire core to be connected is connected; after the electricity test is finished, the button S is pressed, the first linkage switch S1 is in a closed state, the second linkage switch S2 is in an open state, and the wire alignment operation is started; the electricity testing and the wire aligning operation can be finished by pressing the button once, and the operation difficulty is simplified.
Optionally, fig. 5 is a schematic circuit structure diagram of another multi-wire core comparison device provided in the embodiment of the present invention and a wire core to be paired, and referring to fig. 5, the multi-wire core comparison device further includes: and the display module 104 is electrically connected with the resistance testing module 104.
Specifically, the display module 104 may be configured to display a test result of the resistance test module 101, so that an operator can obtain a measured resistance result more intuitively; the display module 104 may be, for example, a liquid crystal display, and when the resistance testing module is a resistance tester, the display module 104 may be integrated inside the resistance tester.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A multi-wire core comparison device, comprising:
the resistance testing module is used for measuring resistance;
the n first wiring ends are used for connecting the first ends of the wire cores to be aligned; n is greater than or equal to 2;
the n second terminals are used for connecting the second ends of the wire cores to be aligned;
the first end of the kth first switch is electrically connected with the kth first terminal, the second end of the kth first switch is electrically connected with the first end of the resistance testing module, and the second end of the resistance testing module is grounded; k is less than or equal to n;
the first end of the kth second switch is electrically connected with the kth second terminal, and the second end of the kth second switch is grounded;
and the control module is used for conducting one of the n first switches and one of the n second switches, and is used for determining that a first terminal corresponding to the currently conducted first switch and a second terminal corresponding to the currently conducted second switch are paired and completed if the result of measuring the resistance by the resistance testing module is zero.
2. The multi-wire core comparison device according to claim 1, wherein the control module is configured to turn on a first switch corresponding to a first terminal that is not aligned, and turn on a second switch corresponding to a second terminal that is not aligned in sequence until a result of measuring the resistance by the resistance test module is zero;
or the control module is used for conducting a second switch corresponding to the second terminal which is not aligned, and sequentially conducting a first switch corresponding to the first terminal which is not aligned until the result of the resistance measurement module for measuring the resistance is zero.
3. The multi-wire core comparison device according to claim 1, wherein the control module comprises a first controller, a second controller, n first relay coils in one-to-one correspondence with the n first switches, and n second relay coils in one-to-one correspondence with the n second switches;
the first controller is used for controlling the excitation states of the n first relay coils, and the first relay coils are used for controlling the conduction states of the corresponding first switches;
the second controller is configured to control excitation states of the n second relay coils, and the second relay coils are configured to control conduction states of corresponding second switches.
4. The multi-wire core comparison device of claim 3, wherein the first controller is in wireless communication with the second controller.
5. The multi-wire core comparison device of claim 1, further comprising: the system comprises an electricity testing relay coil, a first electricity testing relay normally closed switch, an electricity testing relay normally open switch and an alarm module;
the first end of the electricity testing relay coil is electrically connected with the second ends of the n first switches, the second end of the electricity testing relay coil is grounded, and the electricity testing relay coil is used for controlling the conduction states of the normally closed switch of the first electricity testing relay and the normally open switch of the electricity testing relay;
the second ends of the n first switches are electrically connected with the first end of the resistance testing module through the normally closed switch of the first electricity testing relay;
the first end of electricity inspection relay normally open switch is used for inserting external power source's first end, the second end of electricity inspection relay normally open switch with alarm module's first end electricity is connected, alarm module's second end is used for inserting external power source's second end.
6. The multi-wire core comparison device of claim 5, further comprising: the first normally closed switch of the electricity testing relay is electrically connected with the first end of the resistance testing module through the second normally closed switch of the electricity testing relay; and the coil of the electricity testing relay is also used for controlling the conduction state of the normally closed switch of the second electricity testing relay.
7. The multi-wire core comparison device of claim 5, wherein the alarm module comprises: at least one of an acoustic alarm module, an optical alarm module, and a vibration alarm module.
8. The multi-wire core comparison device of claim 5, further comprising:
the resistance testing module is grounded through the first linkage switch.
9. The multi-wire core comparison device of claim 8, further comprising:
the second end of the electricity testing relay coil is grounded through the second linkage switch; the second linkage switch is linked with the first linkage switch, and the conduction states of the second linkage switch and the first linkage switch are different.
10. The multi-wire core comparison device of claim 1, further comprising:
and the display module is electrically connected with the resistance testing module.
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| CN202110455707.1A CN113514781A (en) | 2021-04-26 | 2021-04-26 | Multi-wire core comparison device |
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