Cable impedance test system based on gold sample detection and use method

Abstract

The invention discloses a cable impedance test system based on gold sample detection and a use method, the cable impedance test system comprises a main control program and a channel module, the channel module is internally provided with a plurality of channels, and the main control program comprises a parameter configuration module used for managing various parameters required during program operation and configuring parameters required by corresponding cable test; the multi-channel control module is used for controlling a plurality of channels in the channel module and can independently control the plurality of channels at the same time; and the sampling module is used for sampling the voltage parameters after the cable passes through, and can collect the voltage parameters of the cable in the plurality of channels. Through cooperation of the sampling module and the channel module, parameter sampling and calculation can be carried out on a plurality of cables at the same time, open circuit, short circuit or poor contact of the cables can be rapidly judged, automatic batch detection is supported, cable detection equipment with low-cost impedance testing is adopted, a testing method with simple operation is adopted, and the testing efficiency is improved. Impedance detection of various types of cables is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and in particular to a cable impedance testing system based on gold sample detection and a use method thereof. Background Art

[0002] Cable impedance refers to the resistance per unit length of a transmission line when an electromagnetic signal propagates through it. Impedance is a complex number consisting of a real part, known as resistance, and an imaginary part, known as reactance. Cable impedance testing is crucial in electronic systems, communications engineering, and high-speed signal transmission, directly impacting signal integrity, system performance, and reliability.

[0003] Currently, there are various technologies and methods for measuring impedance, typically using time-domain reflectometry, vector network analyzers, and impedance analyzers. However, these commonly used methods have certain drawbacks: 1. The test equipment is expensive, with high calibration and maintenance costs; 2. The test is complex and difficult for non-professionals to perform; and 3. There are limitations on cable length and structure. Therefore, a cable impedance test system and method based on gold sample testing is urgently needed to address these issues. Summary of the Invention

[0004] The purpose of the present invention is to provide a cable impedance testing system based on gold sample detection and a method for using the same to address the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solutions: A cable impedance test program based on gold sample detection includes a main control program and a channel module. The channel module is provided with multiple channels. The main control program includes: A parameter configuration module is used to manage various parameters required for program operation, configure parameters required for corresponding cable testing, set parameter tables according to cable standards, and read and analyze cable status based on the parameter configuration module; A multi-channel control module is used to control the multiple channels within the channel module, capable of independently controlling the multiple channels simultaneously, meeting the conditions for parallel processing of the multiple channels, and achieving coordinated cooperation among the multiple channels. Based on the multi-channel control module, impedance detection is performed on multiple types of cables, and the current range of the corresponding channel is controlled according to the tested cable; The sampling module samples the voltage parameters after flowing through the cable, can collect the voltage parameters of the cables in multiple channels, can safely sample the parameters, convert and transmit the sampled parameters into signals, calculate the cable resistance parameters based on the voltage parameters, and perform measurement and comparison based on the cable current parameters, voltage parameters and resistance parameters to determine the cable status and perform impedance testing on the cable; The channel includes a reward issuing unit, a connection terminal A, a connection terminal B, and a connection terminal C. Circuits are provided between the reward issuing unit and the connection terminals A, B, and C. Sampling units and switch modules are provided on the three circuits. The reward issuing unit is used for current flow, the connection terminals A, B, and C are used to connect test cables, the sampling unit is used to collect cable parameters, and the switch module is used to control current and grounding.

[0006] Furthermore, the reward issuing unit includes current issuing, voltage issuing, and high-impedance state issuing, and rewards are issued according to corresponding needs. The current issuing is divided into multiple ranges, and the corresponding current range is selected according to the cable being tested.

[0007] Furthermore, the switch module includes a main control switch and a grounding switch. The main control switch is used to control the circuit connectivity and regulate the corresponding current range below the reward issuing unit based on the circuit connectivity.

[0008] Furthermore, the three sampling units can collect cable parameters according to the connection status of the main control switch and the grounding switch with the reward issuing unit, and sample the voltage flowing through the cable.

[0009] Furthermore, the grounding switch is provided with grounding and suspension. The grounding allows the charge to be released through the ground and is used in scenarios requiring protection and stable operation. The suspension can reduce static electricity accumulation and improve the anti-interference ability of the equipment.

[0010] Furthermore, the sampling module includes: The sampling unit is used to collect the current and voltage parameters flowing through the cable, and perform parameter conversion and signal transmission based on ADC; Front-end protection, used for overvoltage protection and electrostatic protection, limits the filtering bandwidth; ADC reading, used to read the signal transmitted by the sampling unit and perform calculations based on the signal; The FIMV test measures current and voltage, calculates cable resistance based on the sent current and readback voltage, and compares and analyzes the cable's internal resistance and cable status based on the parameter configuration module.

[0011] Furthermore, the cable standard setting table parameters in the parameter configuration module include: current delivery, current range, voltage clamping, delivery time, and limit range of readback resistance judgment. The corresponding parameter content needs to be configured based on the gold sample detection. After the detection is completed, the gold sample is optimized and statistically analyzed, and updated and iterated for parameter comparison of the FIMV test and current delivery of the reward delivery unit.

[0012] Furthermore, the connection end A, the connection end B, and the connection end C are all connected to the test cable, and can be used for current injection, current return grounding, and voltage detection, respectively, to realize four-wire detection and detect the real voltage of the test cable.

[0013] Furthermore, the multi-channel control module is provided with control software and an analog switch matrix. Based on the control software, the analog switch matrix is mobilized so that the analog switch matrix regulates the switch modules in multiple paths and allocates circuit connectivity and current range. The control software controls channel switching to realize batch testing of multiple cables.

[0014] A method for using a cable impedance test system based on gold sample detection, applied to any of the above-mentioned cable impedance test systems based on gold sample detection, comprising: Step 1: Initialize the device, turn off all switches, and ensure that no cables are connected; Step 2: Configure the initial parameter table according to the test scenario; Step 3: After connecting the test cable, control the reward distribution and cable grounding according to the parameter table; Step 4: Collect the cable's downstream current and readback voltage, calculate the cable resistance, and analyze the cable status. Step 5: Perform algorithm determination and comparison based on the collected data to achieve cable impedance measurement.

[0015] In the above technical solution, the present invention provides a cable impedance testing system based on gold sample detection and a method of use, which has the following beneficial effects: Through the cooperation of the set sampling module and channel module, parameter sampling and measurement of multiple cables can be performed at the same time, and cable breakage, short circuit or poor contact can be quickly judged. It supports automated batch detection and adopts low-cost impedance test cable detection equipment and simple test methods to realize impedance detection of various types of cables, solving the problems of high equipment cost, high test difficulty and restrictions on cable length and structure in related technologies. Through the cooperation of the set parameter configuration module and multi-channel control module, the corresponding cable test parameters can be configured, and the control software test process can be adjusted. Based on the basic circuit of multiple channels, the test is simplified and the parameter table is configurable, which reduces the difficulty for personnel to get started. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1This is a test forming frame diagram provided for an embodiment of a cable impedance testing system based on gold sample detection and a method of use of the present invention.

[0018] Figure 2 This is a channel composition diagram provided for an embodiment of a cable impedance testing system based on gold sample detection and a method of use of the present invention.

[0019] Figure 3 This is a block diagram of a sampling module provided in an embodiment of a cable impedance testing system based on gold sample detection and a method of use of the present invention.

[0020] Figure 4 This is a test flow chart provided for an embodiment of a cable impedance testing system and a method of use based on gold sample detection of the present invention. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-4 As shown, an embodiment of the present invention provides a cable impedance testing program based on gold sample detection.

[0023] It includes a main control program and a channel module. The channel module is provided with multiple channels. The main control program includes: The parameter configuration module is used to manage various parameters required for program operation, configure the parameters required for corresponding cable testing, set the parameter table according to the cable standard, and read and analyze the cable status based on the parameter configuration module; The multi-channel control module is used to control multiple channels within the channel module. It can independently control multiple channels at the same time, meet the conditions for parallel processing of multiple channels, and achieve coordinated cooperation among multiple channels. Based on the multi-channel control module, impedance detection of various types of cables can be performed, and the current range of the corresponding channel can be controlled according to the tested cable. The sampling module samples the voltage parameters after flowing through the cable. It can collect the voltage parameters of cables in multiple channels, safely sample the parameters, convert and transmit the sampled parameters into signals, calculate the cable resistance parameters based on the voltage parameters, and perform measurement and comparison based on the cable current parameters, voltage parameters and resistance parameters to determine the cable status and perform cable impedance testing. The channel includes a reward issuing unit, connection terminal A, connection terminal B, and connection terminal C. Circuits are set between the reward issuing unit and connection terminals A, B, and C. Sampling units and switch modules are set on the three circuits. The reward issuing unit is used for current flow, connection terminals A, B, and C are used to connect test cables, the sampling unit is used to collect cable parameters, and the switch module is used to control current and grounding.

[0024] Reference Figure 2 The reward delivery unit in this embodiment includes current delivery, voltage delivery, and high-impedance delivery, and rewards are delivered according to corresponding needs. Current delivery is divided into multiple ranges, and the corresponding current range is selected according to the tested cable. The corresponding reward delivery unit can be regulated to deliver the corresponding current range, with a high degree of control and regulation.

[0025] Reference Figure 2 The switch module in this embodiment includes a main control switch and a grounding switch. The main control switch is used to control circuit connectivity and adjust the corresponding current range below the reward distribution unit based on circuit connectivity. It can separately control circuit connectivity and ground connectivity, and separately control multiple circuits.

[0026] Reference Figure 2 In this embodiment, the three sampling units can collect cable parameters based on the connection status of the main control switch and grounding switch with the reward delivery unit, and sample the voltage flowing through the cable. All three sampling units can collect parameters, and when the circuit connectivity status is changed and the reward delivery unit delivers current, the corresponding sampling unit collects the corresponding parameters.

[0027] Reference Figure 2 This embodiment's grounding switch is configured with both grounded and suspended positions. Grounding allows charge to be released through the ground, ideal for scenarios requiring protection and stable operation. Suspending reduces static electricity accumulation and improves the device's anti-interference capabilities. The grounding switch can be controlled to make corresponding connections as needed, expanding its use cases.

[0028] Reference Figure 3 , the sampling module of this embodiment includes: The sampling unit is used to collect the current and voltage parameters flowing through the cable, and perform parameter conversion and signal transmission based on ADC; Front-end protection, used for overvoltage protection and electrostatic protection, limits the filtering bandwidth; ADC reading is used to read the signal transmitted by the sampling unit and perform calculations based on the signal; The FIMV test measures current and voltage, calculates cable resistance based on the sent current and readback voltage, and compares and analyzes the cable's internal resistance and cable status using the parameter configuration module.

[0029] Reference Figure 3The cable standard setting table parameters within the parameter configuration module of this embodiment include: current delivery, current range, voltage clamping, delivery time, and readback resistance determination limits. These parameters are configured based on the gold sample test. After testing, the gold sample is optimized and statistically analyzed, and updated and iterated. These parameters are used for parameter comparison in the FIMV test and current delivery by the reward delivery unit. The corresponding parameters can be configured to start the program, causing it to run according to the parameters. The readback resistance determination limits include upper and lower limits, and the cable's on / off status can be determined based on the comparison.

[0030] Reference Figure 2 In this embodiment, terminals A, B, and C are all connected to the test cable and can be used for current injection, current return grounding, and voltage detection, respectively, implementing four-wire detection and detecting the actual voltage of the test cable. Voltage parameters can be stably collected, separating the current and voltage paths. All channels reuse the same sampling circuit to ensure a consistent measurement benchmark.

[0031] Reference Figure 1 The multi-channel control module of this embodiment includes control software and an analog switch matrix. The control software activates the analog switch matrix, allowing it to regulate switch modules within multiple channels, allocating circuit connectivity and current ranges. The control software controls channel switching, enabling batch testing of multiple cables. The control software can automatically control the analog switch matrix based on configuration parameters.

[0032] The present invention provides a method for using a cable impedance testing system based on gold sample detection, which is applied to a cable impedance testing system based on gold sample detection described in any of the above embodiments, comprising: Step 1: Initialize the device, turn off all switches, and ensure that no cables are connected; Step 2: Configure the initial parameter table according to the test scenario; Step 3: After connecting the test cable, control the reward distribution and cable grounding according to the parameter table; Step 4: Collect the cable's downstream current and readback voltage, calculate the cable resistance, and analyze the cable status. Step 5: Perform algorithm determination and comparison based on the collected data to achieve cable impedance measurement.

[0033] Working principle: When in use, first use the test cable to connect to the connection terminal A, connection terminal B, and connection terminal C, and configure multiple types of cables in multiple channels. Then, according to the corresponding parameters of the test cable configuration, the parameters are matched to the parameter configuration module to perform parameter table statistics. Then, the multi-channel control module can control the switch modules in multiple channels according to the control software, so that the reward issuance unit issues rewards according to the current and current range of the corresponding test cable in the parameter table, so that current flows through the test cable. The sampling unit will sample the voltage after passing through the cable, and then the sampling unit will convert and transmit the parameters, so that the ADC in the sampling module reads the received transmission signal, and performs calculations and comparisons based on the signal parameters and the content recorded in the parameter table, so that the FIMV test analyzes the internal resistance and cable status of the cable. Multiple channels can perform cable testing at the same time to achieve batch testing of multiple cables.

[0034] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A cable impedance testing system based on gold sample detection, including a main control program and a channel module, characterized in that: The channel module is provided with a plurality of channels, and the main control program includes: A parameter configuration module is used to manage various parameters required for program operation, configure parameters required for corresponding cable testing, set parameter tables according to cable standards, and read and analyze cable status based on the parameter configuration module; A multi-channel control module is used to control the multiple channels within the channel module, capable of independently controlling the multiple channels simultaneously, meeting the conditions for parallel processing of the multiple channels, and achieving coordinated cooperation among the multiple channels. Based on the multi-channel control module, impedance detection is performed on multiple types of cables, and the current range of the corresponding channel is controlled according to the tested cable; The sampling module samples the voltage parameters after flowing through the cable, can collect the voltage parameters of the cables in multiple channels, can safely sample the parameters, convert and transmit the sampled parameters into signals, calculate the cable resistance parameters based on the voltage parameters, and perform measurement and comparison based on the cable current parameters, voltage parameters and resistance parameters to determine the cable status and perform impedance testing on the cable; The channel includes a reward issuing unit, a connection terminal A, a connection terminal B, and a connection terminal C. Circuits are provided between the reward issuing unit and the connection terminals A, B, and C. Sampling units and switch modules are provided on the three circuits. The reward issuing unit is used for current flow, the connection terminals A, B, and C are used to connect test cables, the sampling unit is used to collect cable parameters, and the switch module is used to control current and grounding.

2. A cable impedance testing system based on gold sample detection according to claim 1, characterized in that: The reward issuing unit includes current issuing, voltage issuing, and high-impedance issuing, and rewards are issued according to corresponding needs. The current issuing is divided into multiple ranges, and the corresponding current range is selected according to the cable being tested.

3. The cable impedance testing system based on gold sample detection according to claim 2, characterized in that: The switch module includes a main control switch and a grounding switch. The main control switch is used to control the circuit connectivity and regulate the corresponding current range below the reward issuing unit based on the circuit connectivity.

4. The cable impedance testing system based on gold sample detection according to claim 3, characterized in that: The three sampling units can collect cable parameters according to the connection status of the main control switch, the grounding switch and the reward issuing unit, and sample the voltage flowing through the cable.

5. The cable impedance testing system based on gold sample detection according to claim 4, characterized in that: The grounding switch is provided with grounding and suspension. The grounding allows the charge to be released through the ground and is used in scenarios requiring protection and stable operation. The suspension can reduce static electricity accumulation and improve the anti-interference ability of the equipment.

6. The cable impedance testing system based on gold sample detection according to claim 5, characterized in that: The sampling module includes: The sampling unit is used to collect the current and voltage parameters flowing through the cable, and perform parameter conversion and signal transmission based on ADC; Front-end protection, used for overvoltage protection and electrostatic protection, limits the filtering bandwidth; ADC reading, used to read the signal transmitted by the sampling unit and perform calculations based on the signal; The FIMV test measures current and voltage, calculates cable resistance based on the sent current and readback voltage, and compares and analyzes the cable's internal resistance and cable status based on the parameter configuration module.

7. The cable impedance testing system based on gold sample detection according to claim 6, characterized in that: The cable standard setting table parameters in the parameter configuration module include: current delivery, current range, voltage clamping, delivery time, and the limit range of readback resistance judgment. The corresponding parameter content needs to be configured based on the gold sample detection. After the detection is completed, the gold sample is optimized and statistically analyzed, and updated and iterated for the parameter comparison of the FIMV test and the current delivery of the reward delivery unit.

8. The cable impedance testing system based on gold sample detection according to claim 1, characterized in that: The connection end A, the connection end B, and the connection end C are all connected to the test cable and can be used for current injection, current return grounding, and voltage detection, respectively, to implement four-wire detection and detect the real voltage of the test cable.

9. The cable impedance testing system based on gold sample detection according to claim 1, characterized in that: The multi-channel control module is provided with control software and an analog switch matrix. Based on the control software, the analog switch matrix is mobilized to adjust the switch modules in multiple paths and allocate circuit connectivity and current ranges. The control software controls channel switching to realize batch testing of multiple cables.

10. A method for using a cable impedance test system based on gold sample detection, applied to a cable impedance test system based on gold sample detection according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Initialize the device, turn off all switches, and ensure that no cables are connected; Step 2: Configure the initial parameter table according to the test scenario; Step 3: After connecting the test cable, control the reward distribution and cable grounding according to the parameter table; Step 4: Collect the cable's downstream current and readback voltage, calculate the cable resistance, and analyze the cable status. Step 5: Perform algorithm determination and comparison based on the collected data to achieve cable impedance measurement.

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