Automatic test system with adjustable resistance
The resistor selection system, which combines an automated controller and a relay board, solves the problems of cumbersome and error-prone traditional resistance testing methods, and achieves efficient and flexible resistance testing that can adapt to diverse testing scenarios.
Patent Information
- Application Number
- CN202422212860.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-09-10
AI Technical Summary
Traditional resistance testing methods rely on manual adjustments, which are cumbersome and prone to errors, failing to meet the demands of modern electronic product development for high efficiency, high precision, and flexibility.
An automated testing system with adjustable resistance was designed. By combining a controller, a multi-port connector, a relay board, and a resistance selection board, the relays automatically control the switches on the resistance selection board to form different resistance values, thereby achieving automated testing.
It improves the flexibility and accuracy of testing, reduces human error, enhances testing efficiency and the system's parallel processing capabilities, and adapts to diverse testing needs.
Smart Images
Figure CN223526441U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of test equipment, and particularly relates to an automatic test system with adjustable resistance. BACKGROUND
[0002] With the rapid development of electronic products, the demand for testing and verifying their performance is increasing. In particular, testing the processing performance of electronic products under different resistance values is particularly important. Traditional testing methods often rely on manual adjustment of resistance, which is tedious and prone to errors, and cannot meet the requirements of modern electronic product development for high efficiency, high precision and flexibility. Therefore, it is particularly important to develop an automatic resistance-adjustable test system. SUMMARY
[0003] In view of the deficiencies of the prior art, the utility model aims to provide an automatic test system with adjustable resistance, which solves the problem of low test flexibility for the product to be tested in the prior art.
[0004] The utility model can achieve the purpose by the following technical solutions:
[0005] The utility model discloses an automatic test system with adjustable resistance, which comprises a controller, a multi-port connector, a relay board and a resistance selection board connected in sequence, the controller sends a first control signal to the relay based on the multi-port connector, so that the relay on the relay board is activated after receiving the first control signal and controls the resistance selection board based on target control logic, at least two groups of resistance modules are arranged on the resistance selection board, each group of resistance modules comprises a plurality of resistors, and each resistor is controlled based on an independent switch; the resistance selection board is electrically connected with the product to be tested, after the resistance selection board is controlled, different switches on the resistance selection board are controlled to combine different resistors into different target combined resistance values based on the target control logic, so that the product to be tested is tested under the target combined resistance value.
[0006] In some embodiments, the multi-port connector comprises a plurality of output ports, and each output port outputs one first control signal.
[0007] In some embodiments, two groups of resistance modules are arranged on the resistance selection board, including a first resistance module and a second resistance module, and the first resistance module and the second resistance module are connected in parallel.
[0008] In some embodiments, the first resistance module comprises at least one set of first resistance adjusting components, each set of the first resistance adjusting components comprising a plurality of first resistances connected in series with each other; and the second resistance module comprises at least one set of second resistance adjusting components, each set of the second resistance adjusting components comprising a plurality of second resistances connected in series with each other.
[0009] In some embodiments, the maximum resistance value in the first resistance adjusting components is less than the minimum resistance value in the second resistance adjusting components.
[0010] In some embodiments, the plurality of first resistances in the first resistance adjusting components and the plurality of second resistances in the second resistance adjusting components all follow a resistance value distribution manner of 1R-2R-2R-5R, where R is a basic resistance value, 1R represents 1 times the basic resistance value, 2R represents 2 times the basic resistance value, and 5R represents 5 times the basic resistance value.
[0011] In some embodiments, the relay is one.
[0012] In some embodiments, the relay is multiple, and each of the relays corresponds to control one of the independent switches.
[0013] The utility model includes but is not limited to following beneficial effects: (1) in the application, can select the switch combination on resistance selection board based on controller control resistance according to different test needs, adapts diversified test scene, improves the test flexibility of the product to be tested, (2) controller controls resistance selection through relay, reduces manual intervention, improves the efficiency and accuracy of test, reduces the possibility of human error, (3) multi-port connector allows simultaneously outputting multiple control signals, thereby can control multiple relays or resistances simultaneously, improves the parallel processing capacity of system, (4) each output port independently outputs control signal, so that system can flexibly configure different test schemes, adapts multiple resistance combination needs, (5) first resistance module and second resistance module are in parallel configuration, allow system to combine more extensive resistance value range, satisfy different test needs, (6) the resistance value distribution manner of 1R-2R-2R-5R can conveniently combine different resistance values to satisfy diversified test needs, improves the adaptability of system. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description.
[0015] Figure 1 is the overall structure schematic diagram of the resistance adjustable automation test system of the utility model;
[0016] Figure 2 is the circuit principle diagram of the resistance selection board. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0018] The utility model discloses an automatic test system of resistance adjustable, specifically, as shown in Figure 1 The system comprises a controller, a multi-port connector, a relay and a resistance selection board which are electrically connected in sequence. The controller sends a first control signal to the relay based on the multi-port connector, so that the relay controls the resistance selection board based on target control logic after being activated by receiving the first control signal. The resistance selection board is provided with at least two groups of resistance modules, each group of resistance modules comprising a plurality of resistors, and each resistor is controlled by an independent switch. The resistance selection board is electrically connected with a product to be tested. After the resistance selection board is controlled, different switches on the resistance selection board are controlled to combine different resistors into different target combined resistance values based on the target control logic, so that the product to be tested is tested under the target combined resistance values. It can be understood that the application embodiment can combine a plurality of target combined resistance values based on the controller controlling the switches on the resistance selection board according to different test requirements, adapt to diversified test scenarios, and improve the test flexibility of the product to be tested. Furthermore, the controller automatically controls the resistance selection through the relay, reduces manual intervention, improves the efficiency and accuracy of the test, and reduces the possibility of human error.
[0019] In some embodiments, the multi-port connector comprises a plurality of output ports, and each output port outputs a first control signal. It can be understood that the multi-port connector allows simultaneous output of a plurality of control signals, thereby enabling simultaneous control of a plurality of relays or resistors and improving the parallel processing capability of the system. Furthermore, each output port independently outputs a control signal, so that the system can flexibly configure different test schemes and adapt to a variety of resistance combination requirements.
[0020] In some embodiments, the resistance selection board is provided with two groups of resistance modules, including a first resistance module and a second resistance module, and the first resistance module and the second resistance module are connected in parallel. Furthermore, the first resistance module comprises at least one group of first resistance adjusting components, each group of first resistance adjusting components comprising a plurality of first resistors connected in series; and the second resistance module comprises at least one group of second resistance adjusting components, each group of second resistance adjusting components comprising a plurality of second resistors connected in series.
[0021] In some embodiments, the maximum resistance value in the first resistance adjustment component is less than the minimum resistance value in the second resistance adjustment component.
[0022] In some embodiments, the plurality of first resistances in the first resistance adjustment component and the plurality of second resistances in the second resistance adjustment component follow a resistance value distribution of 1R-2R-2R-5R, where R is a base resistance value, 1R represents 1 times the base resistance, 2R represents 2 times the base resistance, and 5R represents 5 times the base resistance.
[0023] In one example, the circuit schematic of the resistance selection board is shown in Figure 2 . Referring to Figure 2 , the first resistance module includes two groups of first resistance adjustment components, where R1-R4 is one group of first resistance adjustment components, and R5-R8 is another group of first resistance adjustment components. In the first group of first resistance adjustment components, R1 has a resistance of 100Ω, R2 has a resistance of 200Ω, R3 has a resistance of 200Ω, and R4 has a resistance of 500Ω. In the second group of first resistance adjustment components, R5 has a resistance of 1KΩ, R6 has a resistance of 2KΩ, R7 has a resistance of 2KΩ, and R8 has a resistance of 5KΩ. As can be seen from the resistance values of R1-R4 and R5-R8, the resistance distribution of the first resistance adjustment components satisfies the distribution of 1R-2R-2R-5R. Through this kind of distribution, different resistance values can be easily combined to meet the diversified testing needs and improve the adaptability of the system. Further, as shown in Figure 2 , the second resistance module includes six resistances, R9-R14. R9-R12 form a group of second resistance adjustment components. In the group of second resistance adjustment components, R9 has a resistance of 10KΩ, R10 has a resistance of 20KΩ, R11 has a resistance of 20KΩ, and R12 has a resistance of 50KΩ. As can be seen from the resistance values of R9-R12, the resistance distribution of the second resistance adjustment components satisfies the distribution of 1R-2R-2R-5R. Through this kind of distribution, different resistance values can be easily combined to meet the diversified testing needs and improve the adaptability of the system. It can be understood that the first resistance adjustment components and the second resistance adjustment components are both set to the distribution of 1R-2R-2R-5R, which can achieve more resistance combinations and improve the flexibility of resistance adjustment.
[0024] Further, each resistance corresponds to an independent switch. As shown in Figure 2 , R1-R14 correspond to independent switches K17-K30. Further, the circuit schematic further includes one total switch K31.
[0025] In some embodiments, the relay is one. It can be understood that when the relay is one, the plurality of independent switches can be controlled by the relay based on target control logic. The target control logic can be predetermined and have certain logical control relationship with each independent switch.
[0026] In some embodiments, the relay is a plurality, each corresponding to control an independent switch.
[0027] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.
Claims
1. An automated test system with adjustable resistance, characterized in that, The system comprises a controller, a multi-port connector, a relay board and a resistance selection board connected in sequence, the controller sends a first control signal to the relay based on the multi-port connector, so that the relay on the relay board controls the resistance selection board based on target control logic after receiving the first control signal, the resistance selection board is provided with at least two groups of resistance modules, each group of resistance modules comprises a plurality of resistors, and each resistor is controlled based on an independent switch; the resistance selection board is electrically connected with a product to be tested, after the resistance selection board is controlled, different switches on the resistance selection board are controlled to combine different resistors into different target combined resistance values based on the target control logic, so that the product to be tested is tested under the target combined resistance values.
2. The resistance adjustable automated test system of claim 1, wherein, The multi-port connector comprises a plurality of output ports, each of which outputs a first control signal.
3. The resistance adjustable automated test system of claim 1, wherein, The resistance selection board is provided with two groups of resistance modules, including a first resistance module and a second resistance module, and the first resistance module and the second resistance module are connected in parallel.
4. The resistance adjustable automated test system of claim 3, wherein, The first resistance module comprises at least one group of first resistance adjustment components, each group of first resistance adjustment components comprises a plurality of first resistors connected in series; the second resistance module comprises at least one group of second resistance adjustment components, each group of second resistance adjustment components comprises a plurality of second resistors connected in series.
5. The resistance adjustable automated test system of claim 4, wherein, The maximum resistance value in the first resistance adjustment component is smaller than the minimum resistance value in the second resistance adjustment component.
6. The resistance adjustable automated test system of claim 4, wherein, The plurality of first resistors in the first resistance adjustment component and the plurality of second resistors in the second resistance adjustment component all follow a resistance value distribution mode of 1R-2R-2R-5R, wherein R is a basic resistance value, 1R represents 1 times the basic resistance, 2R represents 2 times the basic resistance, and 5R represents 5 times the basic resistance.
7. The resistance adjustable automated test system of claim 1, wherein, The relay is one.
8. The resistance adjustable automated test system of claim 1, wherein, The relay is a plurality, and each relay corresponds to control an independent switch.