CN219799728U - Quick alignment device of multicore cable - Google Patents
Quick alignment device of multicore cable Download PDFInfo
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- CN219799728U CN219799728U CN202320449739.5U CN202320449739U CN219799728U CN 219799728 U CN219799728 U CN 219799728U CN 202320449739 U CN202320449739 U CN 202320449739U CN 219799728 U CN219799728 U CN 219799728U
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- 238000007600 charging Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a multi-core cable quick alignment device, comprising: the transmitting end and the receiving end can be respectively connected with two ends of the multi-core cable; the transmitting end comprises a first microcontroller, an output driver and an output connector; the receiving end comprises a second microcontroller, an input buffer and an input connector; the output connector and the input connector have the same channel number, and the channels of the output connector and the input connector are respectively connected at two ends of each core of the multi-core cable. The quick alignment device for the multi-core cable can solve the safety problem and the detection workload problem of construction site personnel and equipment, can finish the calibration of the core wires of the multi-core cable through single operation, ensures the connection accuracy, reduces the operation time and improves the alignment work safety quality.
Description
Technical Field
The utility model relates to a multi-core cable quick alignment device, and belongs to the technical field of electrical engineering.
Background
The multicore cable is the key part of connecting power system device, but owing to there is the intermediate head, electric constructor does not pay attention to installation quality, adopts illegal operation such as wrong connected mode, often causes the line number to correspond to the connection mistake, and the contact point generates heat, easily leads to secondary equipment operation unusual, and then operating current increases and influences electrical equipment operation life-span, and serious fire hazard equipment and personal safety etc. cause great economic loss. The investigation degree of difficulty of the inside line number connection of multicore cable is very big, and the outage overhauls and examines in proper order and often causes extensive time waste, and the dismantlement and the reinstallation that wrong operation caused not only can not guarantee its connection reliability, often cause the loss of junction. Therefore, the calibration work of the multi-core cable core is extremely important in the electric construction work, and the power transmission operation must be performed after the alignment is ensured to be correct and the connection is stable.
In the prior art, when the cable is constructed, a conventional detection method is generally used for detecting whether the multi-core cable is aligned or not, such as a multimeter measurement method and an insulation resistance meter detection method. The probability of successful detection is low, multiple measurements are needed, the steps are more and time-consuming, the construction site is noisy, and the remote communication confirmation often generates error record and leakage record, so that the condition of re-measurement is needed. The insulation resistance meter detection method needs to add a discharging link, which increases the workload of constructors, causes a plurality of uncontrollable factors and is unfavorable for rapid detection in a short time. The conventional cable core checking method has the advantages of more operation steps, low testing efficiency, larger detection voltage required by operation, high risk coefficient, two-place operation required by detection and easy influence of alternating current conditions, noisy sites and other factors on the testing result.
Disclosure of Invention
The utility model aims to solve the technical problems that: the defects of the technology are overcome, and the quick butt joint device for the multicore cable core wires based on the high-precision singlechip is provided.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows: a multi-core cable quick alignment device, comprising: the transmitting end and the receiving end can be respectively connected with two ends of the multi-core cable; the transmitting end comprises a first microcontroller, an output driver and an output connector; the receiving end comprises a second microcontroller, an input buffer and an input connector; the output connector and the input connector have the same channel number, and the channels of the output connector and the input connector are respectively connected to the two ends of each core of the multi-core cable; the first microcontroller can generate a plurality of paths of digital signals with the same number of channels of the output connector, and the duty ratio of each path of digital signal is different; the output driver can amplify each path of digital signals generated by the first microcontroller and inject the digital signals into each channel of the output connector; each path of digital signals is received by the input connector and connected to the input buffer after passing through the multi-core cable; the input buffer is forwarded to the second microcontroller for processing; the second microcontroller is connected with a display.
The scheme is further improved as follows: the transmitting end and the receiving end both comprise a battery and a charging module.
The scheme is further improved as follows: and after receiving the signal retransmitted by the input buffer, the second microcontroller reads the duty ratio of the signal, compares the duty ratio with the digital signal to obtain the corresponding relation between the two ends of each core of the multi-core cable, and displays the corresponding relation on the display.
The scheme is further improved as follows: each digital signal is synchronously injected into each channel of the output connector.
The scheme is further improved as follows: the transmitting end and the receiving end are respectively provided with a grounding end which can be connected with the multi-core cable shielding layer.
According to the multi-core cable quick alignment device, the characteristic channel signal matching method is adopted, so that the working efficiency is greatly improved, communication between two places is avoided, the error factor caused by unsmooth communication between people or noisy environment in the test process is eliminated, and the test accuracy is greatly improved; the multi-core cable core checking device can solve the problems of safety of construction site personnel and equipment and detection workload, checking of the multi-core cable core can be completed through single operation, connection accuracy is guaranteed, operation time is shortened, and alignment work safety quality is improved.
Drawings
The utility model is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a preferred embodiment of the present utility model.
Fig. 2 is a schematic view of the structure of the transmitting end operating surface in fig. 1.
Fig. 3 is a schematic view of the receiver-side operation surface in fig. 1.
Fig. 4 is a block diagram of a transmitting side circuit in fig. 1.
Fig. 5 is a block diagram of a receiving-side circuit in fig. 1.
Fig. 6 is a digital signal sent by the transmitting end in fig. 1.
Detailed Description
Examples
The multi-core cable quick alignment device of this embodiment, as shown in fig. 1, includes: a transmitting end h and a receiving end g. The transmitting end h and the receiving end g are respectively connected with two ends of the multi-core cable a to be tested.
As shown in fig. 4, the transmitting end h includes a microcontroller, an output driver and an output connector, and necessary power supply and charging components; the microcontroller can output a plurality of digital signals with different duty ratios, in this embodiment, 16 paths are taken as an example. As a simple duty cycle signal, as shown in fig. 6, the duration of the high level in one period T is long, and the 16 paths of signals are different. The output driver can amplify each path of digital signals generated by the microcontroller and inject the digital signals into each channel of the output connector; the output connector is used for connecting the multi-core cable a.
As shown in fig. 5, the receiving end g comprises a microcontroller, an input buffer, an input connector, a display and necessary power supply and charging components; each path of digital signal sent by the transmitting end h is received by the input connector and connected to the input buffer after passing through the multi-core cable; the input buffer is responsible for shaping the signal and eliminating noise before forwarding to the microcontroller for processing.
As shown in fig. 2 and 3, the transmitting end h and the receiving end g are respectively provided with a ground empty J5, a green indicator lamp J1, a red indicator lamp J2, a power switch J4 and a charging interface J3. The transmitting end h and the receiving end g are provided with numbers on ports for connecting the multi-core cables, so that the multi-core cables are convenient to distinguish. The display of the receiving end g is exposed from the opening J6 so as to view information of the test structure and the like.
In the operation process, firstly, stripping the metal shielding layers b and the wire core insulating layers at two ends of the multi-core cable a to be tested, then connecting a wire f between the grounding hole of the transmitting end h and the metal shielding layer b, sequentially attaching a serial number label to the wire core d at one end of the multi-core cable a, accessing the wire core d to the transmitting end h, enabling the serial number on the wire d to correspond to the port number of the transmitting end h, and then starting a power supply of the transmitting end h; and at the other end of the multi-core cable a, connecting a grounding hole of a receiving end g with a metal shielding layer b of the multi-core cable a by using a lead e, connecting a wire core c at the other end of the multi-core cable a to a wiring port of the receiving end g one by one, and turning on a power supply of the receiving end g.
The core part of the transmitting end h is a microcontroller, and the corresponding characteristic signal waveform is generated by utilizing the accurate timer function in the transmitting end h, so that the battery electric quantity can be detected, and the charging state can be displayed by controlling the color of the traffic light. The output driver of the transmitting end h is responsible for amplifying the characteristic signals output by the microcontroller so as to be beneficial to the transmission of the signals in the long cable. The core part of the receiving end g is also a microcontroller module, the period and the high-level duration of an input signal can be extracted and measured by using an interrupt function and a timer function, and the corresponding channels are automatically matched and a corresponding relation list is displayed by screening the period and the high-level duration of a characteristic signal which is sent in a preset mode. The input buffer is responsible for shaping and eliminating noise of the signal transmitted by the cable, so as to facilitate the identification of the microcontroller.
The receiving end g immediately displays the relation of the matched channel numbers after detecting the effective characteristic signals of the transmitting device, for example, the relation is displayed (transmitted-received) as (1-4), and the wire core of the number 1 wiring terminal of the transmitting end is matched with the wire core of the number 4 wiring terminal of the receiving end; the display (send-receive) is (1-NC), then the wire core of the No. 1 wiring terminal of the transmitting end is not matched with any wire core of the wiring terminal of the receiving end, and whether the wire of the No. 1 is broken or the contact condition of the terminal can be checked. The whole device uses chargeable lithium battery, and red pilot lamp lights in the charging process, and green pilot lamp lights after full charge. The device is powered on, the green indicator lights flash normally, and the device runs normally; the green indicator light flashes, and the device runs abnormally; the red indicator lamp blinks, the electric quantity is lower than 30%, and the charging reminding is carried out.
Further, the signals may be synchronously injected into the channels of the output connector. Since the characteristic signal period T and the high level duration are used in the present embodimentScreening is carried out, so that interference does not exist between the wire cores, and the alignment of all the wire cores can be synchronously completed at one time. If a short circuit occurs, the high level duration is long and short covered, so that a short circuit fault can be detected.
Claims (5)
1. A multi-core cable quick alignment device, comprising: the transmitting end and the receiving end can be respectively connected with two ends of the multi-core cable; the transmitting terminal comprises a first microcontroller, an output driver and an output connector; the receiving end comprises a second microcontroller, an input buffer and an input connector; the output connector and the input connector have the same channel number, and the channels of the output connector and the input connector are respectively connected to the two ends of each core of the multi-core cable; the first microcontroller can generate a plurality of paths of digital signals with the same number of channels of the output connector, and the duty ratio of each path of digital signal is different; the output driver can amplify each path of digital signals generated by the first microcontroller and inject the digital signals into each channel of the output connector; each path of digital signals is received by the input connector and connected to the input buffer after passing through the multi-core cable; the input buffer is forwarded to the second microcontroller for processing; the second microcontroller is connected with a display.
2. The multi-core cable quick alignment device of claim 1, wherein: the transmitting end and the receiving end both comprise a battery and a charging module.
3. The multi-core cable quick alignment device of claim 1, wherein: and after receiving the signal retransmitted by the input buffer, the second microcontroller reads the duty ratio of the signal, compares the duty ratio with the digital signal to obtain the corresponding relation between the two ends of each core of the multi-core cable, and displays the corresponding relation on the display.
4. The multi-core cable quick alignment device of claim 1, wherein: each digital signal is synchronously injected into each channel of the output connector.
5. The multi-core cable quick alignment device of claim 1, wherein: the transmitting end and the receiving end are respectively provided with a grounding end which can be connected with the multi-core cable shielding layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320449739.5U CN219799728U (en) | 2023-03-10 | 2023-03-10 | Quick alignment device of multicore cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320449739.5U CN219799728U (en) | 2023-03-10 | 2023-03-10 | Quick alignment device of multicore cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219799728U true CN219799728U (en) | 2023-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320449739.5U Active CN219799728U (en) | 2023-03-10 | 2023-03-10 | Quick alignment device of multicore cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219799728U (en) |
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2023
- 2023-03-10 CN CN202320449739.5U patent/CN219799728U/en active Active
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