Low-resistance insulation electronic multiplexing test module

Abstract

The invention relates to the technical field of electrical testing, and discloses a low-resistance insulation electronic multiplexing test module, which comprises a circuit integrated board card, and a power supply module is arranged on the left side of the top of the circuit integrated board card and is used for providing a stable power supply in electronic equipment; the multi-path switching module is arranged at the top of the circuit integrated board card and is used for quickly switching among test channels; the signal conditioning module is arranged at the top of the circuit integrated board card and is used for ensuring a stable switching process between test channels; the driving module is arranged at the top of the circuit integrated board card and is used for driving the switch element between the test channels; and the control module is arranged at the top of the circuit integrated board card and is used for controlling switching among different test channels. According to the invention, by integrating the multi-channel switching module, a plurality of electrical test channels can be rapidly switched, the low-efficiency process of manual switching one by one of the traditional test equipment is avoided, and the design of the multi-channel switching module enables the system to complete a multi-channel test in a short time, so that the test efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of electrical testing, in particular to a low-resistance insulation electronic multiplexing test module. Background Art

[0002] Low resistance materials refer to materials with good electrical conductivity and low resistance values, which are usually used for current conduction and electrical connection. Common low resistance materials include copper, aluminum and some alloys. These materials are widely used in various electrical and electronic equipment due to their excellent electrical conductivity. In the manufacturing and development process of modern electronic equipment, electrical test modules are needed to ensure product performance, quality and reliability. For complex circuits and multi-channel devices, existing electrical tests often require switching between multiple signal channels to test electrical signals at different points. Traditional multi-channel switching methods mostly rely on mechanical relays, solid-state relays or discrete component circuits. These methods have problems such as signal attenuation, switching delay, and poor contact, which severely limits the test accuracy and efficiency in high-frequency, multi-channel testing, and are not conducive to the integration, intelligence, and automation of the system. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a low-resistance insulating electronic multiplexing test module, which solves the problems of signal attenuation, switching delay, poor contact, etc., which result in severe limitations on test accuracy and efficiency in high-frequency, multi-channel testing, and are not conducive to the integration, intelligence and automation development of the system.

[0004] To achieve the above object, the present invention is implemented by the following technical solutions: a low-resistance insulation electronic multiplexing test module, including a circuit integrated board, a power supply module is installed on the top left side of the board, and is used to provide a stable power supply in the electronic device; The multi-channel switching module is set on the top of the circuit integrated board to quickly switch between test channels; The signal conditioning module is set on the top of the circuit integration board to ensure the stability of the switching process between test channels; The driving module is arranged on the top of the circuit integrated board and is used to drive the switch elements between the test channels; The control module is arranged on the top of the circuit integrated board and is used to control the switching between different test channels; The power supply module, multi-channel switching module, control module, signal conditioning module and driving module are all connected via telecommunication.

[0005] Preferably, the multi-channel switching module includes a signal selector and a signal path optimizer. The multi-channel switching module is a core part responsible for fast switching between different test channels.

[0006] Preferably, the control module includes a programming interface and an automatic control program, and the control module is responsible for managing the work of the entire board and controlling the switching of different test channels.

[0007] Preferably, the signal conditioning module includes an impedance matching circuit and a filtering circuit, and the signal conditioning module is used to improve the quality of signal transmission and ensure that the switched signal will not be interfered with or distorted.

[0008] Preferably, the power supply module includes a power supply filter and a voltage stabilizing circuit, and the power supply module provides a stable power supply for the entire system.

[0009] Preferably, the driving module comprises a driving circuit, a protection circuit, and a state feedback circuit, and the driving module is used to amplify the signal of the control module to drive the switch element of the multi-way switching module.

[0010] Preferably, the signal selector is composed of a multi-way switch for selecting different test channels; the signal path optimizer is used to reduce signal attenuation and interference during channel switching, and the multi-way switch includes a MOSFET or a solid-state relay.

[0011] Preferably, the programming interface is used for an external control system to remotely control the switching of test channels; the automation control program can automatically select a corresponding channel according to a preset test program, and the programming interface includes SPI and I2C.

[0012] Preferably, the impedance matching circuit is used to reduce reflection and attenuation of the signal, especially in high-frequency signal transmission; the filtering circuit is used to remove power supply noise and other electromagnetic interference to ensure signal purity.

[0013] Preferably, the drive circuit is used to amplify the control signal into sufficient current or voltage to drive the switching switch; the protection circuit is used to prevent current or voltage overload and protect the switching element; the state feedback circuit is used to monitor the driving state in real time and feed back the information to the control module.

[0014] Working principle: When using this device, the system needs to be powered on so that the power supply module can provide stable power for the entire measurement system, ensure the normal operation of all modules, and eliminate power supply noise through the power supply filter and voltage stabilization circuit, and then connect the USB interface to the PC through the control module to establish a communication channel. The test program running on the PC can send instructions to the control module to perform remote and automated control of the test process. After the control module receives the command from the PC, it parses these instructions to determine which test channel needs to be switched to, and activates the multi-way switching module through the control signal. This module consists of a signal selector and a signal path optimizer, which is responsible for fast switching between different test channels. The signal selector (such as MOSFET or solid-state relay) is connected to the corresponding component under test (resistance or capacitance) for testing according to the command of the control module; After the channel switching is completed, the signal conditioning module starts to work. Through the impedance matching circuit and the filtering circuit, it ensures that the impedance of the test channel matches the measured component. This step reduces signal reflection and attenuation, removes noise from the power supply and other electromagnetic interference, thereby ensuring the measurement results; After signal conditioning is completed, the system starts to measure. According to the characteristics of the measured component, the system collects the corresponding voltage or current signal and converts it for analysis. After the measurement is completed, the control module sends the collected test results of each channel back to the PC through the USB interface. The test program receives and records this data.

[0015] The present invention provides a low-resistance insulation electronic multiplexing test module. It has the following beneficial effects: 1. The present invention integrates a multi-way switching module to quickly switch multiple electrical test channels, avoiding the inefficient process of manual switching one by one of traditional test equipment. The design of the multi-way switching module enables the system to complete multi-channel testing in a short time, greatly improving the test efficiency, especially in batch and automated testing scenarios, this efficiency is particularly significant.

[0016] 2. The present invention uses electronic components such as MOSFET or solid-state relays for switching, avoiding the disadvantages of mechanical relays such as easy wear, slow switching, and short life. In addition, the optimization of the signal conditioning module (such as impedance matching, filtering and other circuit designs) ensures the stability and integrity of the signal during the switching process, so that the system can still maintain high-precision testing under long-term use.

[0017] 3. The present invention enables the board to support automation and remote control through the design of the control module, and can achieve seamless connection with the host computer, test equipment or automatic control system through the programming interface. This intelligent design reduces the intervention of human operation, reduces human errors, and improves the automation level and repeatability of the test.

[0018] 4. The present invention ensures the signal quality during the switching process through impedance matching, filtering and signal amplification by means of the signal conditioning module, reduces signal attenuation and noise interference, and makes the test results more accurate and reliable. This is especially important in scenarios requiring high-precision electrical testing, and ensures the consistency of tests between different channels. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention; Figure 2 It is a circuit integrated board system framework diagram of the present invention; Figure 3 It is a system diagram of a multi-way switching module of the present invention; Figure 4 It is a system diagram of the signal conditioning module of the present invention; Figure 5 is a control module system diagram of the present invention; Figure 6 It is a system diagram of the driving module of the present invention; Figure 7 This is a system diagram of the power supply module of the present invention; Among them, 1. Circuit integration board; 2. Power supply module; 3. Multi-channel switching module; 4. Control module; 5. Signal conditioning module; 6. Drive module. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Please see attached Figure 1 and attached Figure 2 An embodiment of the present invention provides a low-resistance insulation electronic multiplexing test module, including a circuit integrated board 1, on the top left of which a power supply module 2 is installed, wherein the power supply module 2 is used to provide a stable power supply in the electronic device; a multi-way switching module 3 is arranged on the top of the circuit integrated board 1, for fast switching between test channels, and a signal conditioning module 5 is arranged on the top of the circuit integrated board 1, for ensuring the stability of the switching process between the test channels; a driving module 6 is arranged on the top of the circuit integrated board 1, for driving the switch elements between the test channels; a control module 4 is arranged on the top of the circuit integrated board 1, for controlling the switching between different test channels; the power supply module 2, the multi-way switching module 3, the control module 4, the signal conditioning module 5, and the driving module 6 are all connected through lines.

[0022] Please see attached Figure 2 , Attachment Figure 3 and attached Figure 5 The multi-channel switching module 3 includes a signal selector and a signal path optimizer. The multi-channel switching module 3 is the core part and is responsible for fast switching between different test channels. The multi-channel switching module 3 is composed of a signal selector and a signal path optimizer. Through mutual cooperation, it ensures that the optimal path can be selected in the signal path selection. The control module 4 includes a programming interface and an automatic control program. The control module 4 is responsible for managing the work of the entire board and controlling the switching of different test channels. The control module 4 is composed of a programming interface and an automatic control program. Through mutual cooperation, it controls the switching between different test channels.

[0023] Please see attached Figure 2 , Attachment Figure 4 , Attachment Figure 6 and attached Figure 7 The signal conditioning module 5 includes an impedance matching circuit and a filtering circuit. The signal conditioning module 5 is used to improve the quality of signal transmission and ensure that the signal after switching will not be interfered or distorted. The signal conditioning module 5 is composed of an impedance matching circuit and a filtering circuit. The signal transmission quality is improved through interaction to ensure that the signal is not affected. The power supply module 2 includes a power supply filter and a voltage stabilizing circuit. The power supply module 2 provides a stable power supply for the entire system. The driving module 6 includes a driving circuit, a protection circuit, and a state feedback circuit. The driving module 6 is used to amplify the signal of the control module 4 to drive the switch element of the multi-way switching module 3. The driving module 6 is composed of a driving circuit, a protection circuit, and a state feedback circuit. The switch elements of the multi-way switching module 3 are driven by mutual cooperation. The protection circuit prevents overload or short circuit, and the state feedback circuit monitors the working state of the system.

[0024] Please see attached Figure 2 , Attachment Figure 3 and attached Figure 5 The signal selector is composed of a multi-way switch for selecting different test channels; the multi-way switch is used to select different test channels, and the connection to a specific channel is achieved by controlling the opening and closing of the switch. The multi-way switch includes a MOSFET or a solid-state relay. The signal path optimizer is used to reduce the attenuation and interference of the signal during the channel switching process. The signal path optimizer is used to optimize the signal transmission path during the channel switching process to reduce the attenuation and interference of the signal during the switching process. The programming interface is used for the external control system to remotely control the switching of the test channel, improve the automation level, and simplify the operation process. The programming interface includes SPI and I2C; Please see attached Figure 2 , Attachment Figure 4 , Attachment Figure 6 and attached Figure 7, the automated control program can automatically select the corresponding channel according to the preset test program, wherein the automated control program is used to automatically select the corresponding channel according to the preset test program, avoiding manual intervention. The impedance matching circuit is used to reduce the reflection and attenuation of the signal, especially in high-frequency signal transmission, to ensure the matching between input and output; the filter circuit is used to remove power supply noise and other electromagnetic interference to ensure the purity of the signal, wherein the impedance matching circuit is used to improve the accuracy of the measurement result and reduce the impact of noise on the signal. The drive circuit is used to amplify the control signal into sufficient current or voltage to drive the switching switch, thereby enhancing the driving ability of the control signal; the protection circuit is used to prevent current or voltage overload, protect the switching element, prevent accidental damage, and ensure long-term stable operation. The state feedback circuit is used to monitor the drive state in real time and feed back information to the control module 4, wherein the state feedback circuit is used to provide real-time monitoring capabilities, which is helpful for fault diagnosis and maintenance.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Low resistance insulation electronic multiplexing test module, characterized in that: include; A circuit integrated board (1) having a power supply module (2) installed on the top left side thereof, for providing a stable power supply in the electronic device; The multi-channel switching module (3) is arranged on the top of the circuit integrated board (1) and is used for fast switching between test channels; The signal conditioning module (5) is arranged on the top of the circuit integrated board (1) and is used to ensure the stability of the switching process between the test channels; The driving module (6) is arranged on the top of the circuit integrated board (1) and is used to drive the switch elements between the test channels; The control module (4) is arranged on the top of the circuit integrated board (1) and is used to control the switching between different test channels; The power supply module (2), the multi-channel switching module (3), the control module (4), the signal conditioning module (5), and the drive module (6) are all connected via telecommunications.

2. The low resistance insulation electronic multiplexing test module according to claim 1, characterized in that: The multi-channel switching module (3) comprises a signal selector and a signal path optimizer. The multi-channel switching module (3) is a core part responsible for fast switching between different test channels.

3. The low resistance insulation electronic multiplexing test module according to claim 1, characterized in that: The control module (4) comprises a programming interface and an automatic control program, and the control module (4) is responsible for managing the work of the entire board and controlling the switching of different test channels.

4. The low resistance insulation electronic multiplexing test module according to claim 1, characterized in that: The signal conditioning module (5) comprises an impedance matching circuit and a filtering circuit, and the signal conditioning module (5) is used to improve the quality of signal transmission and ensure that the switched signal will not be interfered with or distorted.

5. The low resistance insulation electronic multiplexing test module according to claim 1, characterized in that: The power supply module (2) comprises a power supply filter and a voltage stabilizing circuit, and the power supply module (2) provides a stable power supply for the entire system.

6. The low resistance insulation electronic multiplexing test module according to claim 1, characterized in that: The driving module (6) comprises a driving circuit, a protection circuit and a state feedback circuit, and the driving module (6) is used to amplify the signal of the control module (4) to drive the switch element of the multi-way switching module (3).

7. The low resistance insulation electronic multiplexing test module according to claim 2, characterized in that: The signal selector is composed of a multi-way switch for selecting different test channels; the signal path optimizer is used to reduce signal attenuation and interference during channel switching, and the multi-way switch includes a MOSFET or a solid-state relay.

8. The low resistance insulation electronic multiplexing test module according to claim 3, characterized in that: The programming interface is used for the external control system to remotely control the switching of the test channels; the automatic control program can automatically select the corresponding channel according to the preset test program, and the programming interface includes SPI and I2C.

9. The low resistance insulation electronic multiplexing test module according to claim 4, characterized in that: The impedance matching circuit is used to reduce the reflection and attenuation of the signal, especially in high-frequency signal transmission; the filtering circuit is used to remove power supply noise and other electromagnetic interference to ensure the purity of the signal.

10. The low resistance insulation electronic multiplexing test module according to claim 6, characterized in that: The drive circuit is used to amplify the control signal into a sufficient current or voltage to drive the switching switch; the protection circuit is used to prevent current or voltage overload and protect the switching element; the state feedback circuit is used to monitor the driving state in real time and feed back the information to the control module (4).

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