Universal cable on-off detection device

Abstract

The utility model relates to a cable on-off universal detection device. The cable on-off universal detection device comprises a device shell, a PLC control panel, a standard connector, a device main switch, a display screen and a core wire definition and control button. A PLC controller, a multi-way switch module and a resistance acquisition module are arranged on the PLC control panel, the PLC controller is connected with two rows of core wire definition and control buttons positioned on the panel, the core wire definition and control buttons comprise a plurality of digital buttons, a confirmation button, a return button, a start button, a stop button and a reset button, and the number of the digital buttons is more than one. The definition module is used for defining corresponding relations of core wires at two ends of the multi-core cable; the multi-way switch module is used for realizing switching of multiple groups of measuring channels, the resistance acquisition module is used for measuring a resistance value, and the PLC is used for completing data processing and displaying a result on the display screen through the communication module. According to the utility model, the due on-off relationship of the core wires at the two ends of the multi-core cable can be self-defined, and the problems of long time consumption, low efficiency and the like of multi-core cable on-off detection are solved.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment, specifically to a universal cable continuity testing device. Background Technology

[0002] Cables play a vital role in production and daily life as a medium for signal transmission and energy transfer. Continuity testing of multi-core cables is one of the key inspection indicators during cable manufacturing. In mass production, dedicated equipment is typically developed for continuity testing, or manual testing is used. However, developing a dedicated testing device for each cable or conducting manual testing would incur significant economic or labor costs.

[0003] To address the above issues, it is necessary to develop a portable and universal multi-core cable continuity testing device that can automatically detect the continuity of multi-core cables on-site, effectively improving the speed of cable testing and saving manpower and time costs. Utility Model Content

[0004] The purpose of this invention is to provide a universal cable continuity testing device to solve the problems of long testing time and low efficiency in multi-core cable continuity testing.

[0005] The present invention adopts the following technical solution:

[0006] A universal cable continuity testing device comprises a housing 1, fixing screws 2, fixing posts 3, a PLC control board 4, a standard connector 5, a power supply interface 6, a main switch 7, a display screen 8, and a core wire definition and control button 9. The standard connector 5 is located on the left and right sides of the housing 1, while the main switch 7, display screen 8, and core wire definition and control button 9 are located on the front of the housing 1. The standard connector 5, display screen 8, and core wire definition and control button 9 are electrically connected to the PLC control board 4. The PLC control board 4 includes a power supply module, a PLC controller, a multiplexer module, a resistance acquisition module, and a communication module. The power supply module can be powered by a 5V DC input through the power supply interface or by the onboard internal power supply. The PLC controller's digital input port is connected to the core wire definition and control button 9 located on the front panel. The core wire definition and control button 9 includes a "0-9" numeric button, a "Confirm" button, a "Next" button, a "Return" button, a "Start" button, a "Stop" button, and a "Reset" button. Several numeric buttons are provided to define the correspondence between the core wires at both ends of the multi-core cable. The multi-channel switch module is used to switch between multiple measurement channels. The resistance acquisition module measures the resistance value of the current channel and reports it to the PLC controller. The PLC controller processes the data and displays the results on the display screen 8 via the communication module. The display screen 8 displays the current operating status and detection results.

[0007] Preferably, the number buttons are divided into two rows, one above the other, with Arabic numerals printed on each button. The two rows of number buttons correspond to each core of the multi-core cable connected by standard connectors 5 located on the left and right sides of the device housing 1. The core wires at both ends of the multi-core cable under test are defined by operating the number buttons and the confirmation button.

[0008] Preferably, the fixing column 3 is integrally formed with the device housing 1, and the PLC control board 4 is fixed inside the device housing 1 by fixing screws 2.

[0009] Preferably, the power supply interface 6 is located on one side of the device housing 1, and the power supply interface 6 is used to provide power through an external power source.

[0010] Based on this, the present invention can be further improved as follows: a built-in power module can be added, so that the device can continue to work when it is disconnected from the external power supply, and the external power supply port can charge the built-in power module.

[0011] Based on this, the present invention can be further improved as follows: a digital tube or LED display module can be configured to display the test results, so that users can make judgments on the test results.

[0012] Based on this, the present invention can be further improved as follows: an expandable SD card module can be used to cache the test results to the SD card, making it convenient for users to locate faults in problematic cables.

[0013] The beneficial effects of this utility model are:

[0014] (1) Cable testing versatility: The continuity relationship of the core wires at both ends of a multi-core cable can be customized through the core wire definition and control button on the device, and different cables can be tested.

[0015] (2) Automatic detection and complete recording of detection results can be achieved based on the generated detection process;

[0016] (3) Rapid detection: The hardware multi-detection circuit design enables multiple sets of measurements to be performed simultaneously and multi-core resistors to be detected synchronously, thereby improving the detection speed. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the continuity detection device of this utility model.

[0018] Figure 2 This is a schematic diagram of the PLC control board of this utility model.

[0019] Figure 3 This is a schematic diagram illustrating the detection principle of a programmable cable continuity detection device.

[0020] In the picture:

[0021] 1-Device housing, 2-Fixing screws, 3-Fixing post, 4-PLC control board, 5-Standard connector, 6-Power supply interface, 7-Device main switch, 8-Display screen, 9-Core wire definition and control button. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1As shown, the universal cable continuity testing device of this utility model consists of a device housing 1, fixing screws 2, fixing posts 3, PLC control board 4, standard connector 5, power supply interface 6, device main switch 7, display screen 8, core wire definition and control button 9, etc. The fixing post 3 is integrally formed with the device housing 1. The PLC control board 4 is fixed inside the device housing 1 by fixing screws 2. The standard connector 5 is located on the left and right sides of the device housing 1. The main switch 7, display screen 8, and core wire definition and control button 9 are located on the front of the device housing 1. The standard connector 5, display screen 8, and core wire definition and control button 9 are electrically connected to the PLC control board 4. The PLC control board 4 includes a power supply module, a PLC controller, a multiplexer module, a resistance acquisition module, and a communication module. The power supply module can be powered by a 5V DC input through the power supply interface or by the onboard internal power supply. The switch input port of the PLC controller is connected to the core wire definition and control button 9 located on the panel. The core wire definition and control button 9 includes a "0-9" numeric button, a "Confirm" button, a "Next" button, a "Return" button, a "Start" button, a "Stop" button, and a "Reset" button. The digital buttons are arranged in two rows, each printed with Arabic numerals "0-9". The two rows correspond to each core of a multi-core cable connected via standard connectors 5 located on the left and right sides of the device housing 1. Operating the digital buttons and the confirmation button defines the core wires at both ends of the multi-core cable under test (the core wire definition and control button 9 can be combined to define core wire numbers greater than 9; when the user inputs a core wire number exceeding the maximum measurement limit, the PLC controller will perform a numerical judgment and output a prompt message "Exceeded the maximum detectable number" on the display screen 8). The multi-channel switch module is used to switch between multiple measurement channels. The resistance acquisition module measures the resistance value of the current channel and reports it to the PLC controller. The PLC controller processes the data and displays the results on the display screen 8 via the communication module. The display screen 8 displays the current working status and test results.

[0024] The standard connector 5 is fixed to the device housing 1 with screws. The device housing 1 has a square hole of the same size as the power supply interface 6 for connecting the power supply line. The device panel includes a device master switch 7, a core wire definition and control button 9 and a display screen 8. The device master switch 7 is used to control the power input of the device.

[0025] like Figure 2As shown, the PLC control board of this utility model includes a power supply module, a serial communication module, a PLC controller, a switch module, and a resistance acquisition module. The power supply module can be powered via USB or an onboard internal battery. The communication module serves as the hub for communication between the onboard PLC controller and the display screen. The core wire definition and control button 9 on the panel can define detection commands and the corresponding relationship between each pair of core wires. The PLC controller stores the user-defined detection relationships internally, realizing the programmable function of the detection process. The PLC controller drives the switch module to switch the detection circuit according to the preset detection process. After the circuit switching is completed, the PLC controller sends an acquisition command to the resistance acquisition module. The resistance acquisition module measures the circuit resistance and returns the measured value to the PLC controller. The PLC controller determines the continuity based on the detection value and returns the detection result to the display screen through the communication module. During this process, the switch module and the resistance acquisition module report status information to the PLC controller in real time. The PLC controller processes this information and sends it to the display screen 8 via the communication module, and then feeds it back to the user.

[0026] like Figure 3 As shown, the two ends of the cable under test are connected to the standard connectors 5 located on the left and right sides of the device housing 1 via adapter cables. After confirming that the cable connection is correct, the user connects the power supply cable to the power supply interface and provides power. Then, the user turns on the main switch 7 of the device. After the device is powered on, the PLC controller performs a self-test and displays the device status on the display 8. According to the core wire definition relationship of the cable under test, the user clicks the number buttons on the panel to set the core wire correspondence at both ends of the cable. The user sets the automatic detection steps using the confirmation and return buttons. After completing the above setting steps, the user clicks the start button, and the continuity detection device will automatically execute the detection steps to complete the continuity detection of the cable under test and display the results on the display 8. During the detection process, the user can pause or continue the detection process at any time using the core wire definition and control buttons.

[0027] As an example, after the device is powered on, the user can click the button "0" + "Confirm" to enter the core wire definition process. Assuming the two ends of the cable are end A and end B, to define the continuity test of the 25th core of end A and the 13th core of end B, the user can click "2" and "5" in the first row, "1" and "3" in the second row, and then click "Confirm". This completes the corresponding definition of the 25th core of end A and the 13th core of end B. (Similarly, to define the continuity test of the 5th core of end A and the 3rd core of end B, the user can click "5" in the first row, "3" in the second row, and then click "Confirm". This completes the corresponding definition of the 5th core of end A and the 3rd core of end B.) Clicking "Next" allows the user to continue defining the core wires at both ends. After all the core wires are defined, clicking "Cancel" ends the core wire definition process and caches the data to the PLC controller. After the device is started again, the user can directly execute the test process by clicking the confirmation button.

[0028] As an example, the PLC controller can be a commercially available small PLC, and the display 8 can also be the display that comes with the commercially available small PLC. In the process of defining the core wires and detecting the continuity of each core wire in a multi-core cable using the PLC controller, this does not involve any new methods that cannot be implemented by those skilled in the art based on existing technology; the detection process of this utility model can be achieved using PLC configuration software.

Claims

1. A universal cable continuity testing device, characterized in that, The device includes a housing (1), a PLC control board (4), a standard connector (5), a main switch (7), a display screen (8), and a core wire definition and control button (9). The PLC control board (4) is located inside the housing (1), the standard connector (5) is located on the left and right sides of the housing (1), and the main switch (7), display screen (8), and core wire definition and control button (9) are all located on the front of the housing (1). The standard connector (5), display screen (8), and core wire definition and control button (9) are all electrically connected to the PLC control board (4). The PLC control board (4) includes a power supply module, a PLC controller, a multiplexer module, a resistance acquisition module, and a communication module. The power supply module is used to supply power. The PLC controller is connected to the core wire definition and control button (9) located on the panel through its switch input port. The core wire definition and control button (9) includes a number button, a confirmation button, a return button, a start button, a stop button and a reset button. There are several number buttons, which are used to define the correspondence between the core wires at both ends of the multi-core cable to be tested. The multi-channel switch module is used to realize the switching of multiple measurement channels. The resistance acquisition module measures the resistance value of the current channel and reports it to the PLC controller. The PLC controller completes the data processing and displays the result on the display screen (8) through the communication module. The display screen (8) is used to display the current working status and detection results.

2. The universal cable continuity testing device according to claim 1, characterized in that: The number buttons are divided into two rows, one above the other. Each number button is printed with Arabic numerals. The two rows of number buttons correspond to each core of the multi-core cable connected by the standard connectors (5) located on the left and right sides of the device housing (1). The core wires at both ends of the multi-core cable to be tested are defined by operating the number buttons and the confirmation button.

3. The universal cable continuity testing device according to claim 1, characterized in that: It also includes fixing screws (2) and fixing posts (3), the fixing posts (3) being integrally formed with the device housing (1), and the PLC control board (4) being fixed inside the device housing (1) by fixing screws (2).

4. The universal cable continuity testing device according to claim 1, characterized in that: It also includes a power supply interface (6) located on one side of the device housing (1), which is used to provide power through an external power source.

5. The universal cable continuity testing device according to claim 1, characterized in that: It also includes a built-in power module, which allows the device to continue working even when it is disconnected from an external power supply, and the built-in power module can be charged through the power supply interface (6).

6. The universal cable continuity testing device according to any one of claims 1-5, characterized in that: It is also equipped with a digital tube or LED display module located on the front of the device housing (1) for displaying the test results.

7. The universal cable continuity testing device according to any one of claims 1-5, characterized in that: It is also equipped with an expansion SD card module, which is connected to the PLC control board (4) and caches the detection results to the SD card.

Images