CN217981693U - Test apparatus and test system - Google Patents
Test apparatus and test system Download PDFInfo
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- CN217981693U CN217981693U CN202222237657.2U CN202222237657U CN217981693U CN 217981693 U CN217981693 U CN 217981693U CN 202222237657 U CN202222237657 U CN 202222237657U CN 217981693 U CN217981693 U CN 217981693U
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Abstract
The utility model provides a test equipment and test system. The testing equipment comprises a first switch module, a second switch module, a third switch module and a resistor installation module, wherein the resistor installation module is used for being detachably and electrically connected with a resistor; the first end of the first switch module is electrically connected with the first end of the second switch module, the first end of the first switch module is also electrically connected with the power supply cathode, and the second end of the first switch module is electrically connected with the first end of the resistor installation module; the second end of the resistor installation module is electrically connected with the first end of the third switch module, and the second end of the resistor installation module is also used for being electrically connected with a target device; the second end of the third switch module is electrically connected with the positive electrode of the power supply; the second end of the second switch module is used for grounding. The embodiment of the utility model provides an in, can realize carrying out the feed test to different target device, do not need the manual work to build feed test circuit for every target device to this has improved efficiency of software testing.
Description
Technical Field
The utility model relates to an electronic circuit technical field especially relates to a test equipment and test system.
Background
The backfeed test is a common item for detecting the electrical performance of a terminal with an output port, and in the related art, different test circuits need to be manually built for performing the backfeed test on the terminal aiming at different test cases.
In the above process, in order to realize multiplexing of components, a lot of time is consumed by a tester to remove/build a test circuit, which reduces test efficiency.
SUMMERY OF THE UTILITY MODEL
A primary object of the utility model is to provide a test equipment and test system aims at solving the tester and consumes a large amount of time and demolishs/set up test circuit, and then has reduced efficiency of software testing's technical problem.
In order to achieve the above object, the present invention provides a testing apparatus, which includes a first switch module, a second switch module, a third switch module, and a resistor installation module, wherein the resistor installation module is used for being detachably and electrically connected with a resistor;
the first end of the first switch module is electrically connected with the first end of the second switch module, the first end of the first switch module is also used for being electrically connected with a power supply cathode, and the second end of the first switch module is electrically connected with the first end of the resistor installation module;
the second end of the resistor installation module is electrically connected with the first end of the third switch module, and the second end of the resistor installation module is also used for being electrically connected with a target device;
the second end of the third switch module is electrically connected with the positive electrode of the power supply;
and the second end of the second switch module is used for grounding.
Optionally, the test equipment further includes a control module, and the control module is in communication connection with at least the second switch module and the third switch module.
Optionally, the second switch module and the third switch module are configured to receive a control instruction of the control module, and execute a switching operation according to the control instruction.
Optionally, the second switch module is configured to close within a first time interval according to the control instruction;
and the third switch module is used for switching off within the first time interval according to the control instruction.
Optionally, the second switch module is configured to switch off within a second time interval according to the control instruction;
and the third switch module is used for switching off in the second time interval according to the control instruction.
Optionally, the target device includes a data terminal, the second terminal of the resistor installation module is configured to be electrically connected to the data terminal of the target device, and the first terminal of the third switch module is configured to be electrically connected to the data terminal of the target device.
Optionally, the target device includes a power supply terminal and a ground terminal, the second terminal of the second switch module is further configured to be electrically connected to the ground terminal of the target device, and the first terminal of the third switch module is further configured to be electrically connected to the power supply terminal of the target device.
Optionally, the resistor installation module is configured to access a pluggable resistor, and the pluggable resistor is a variable resistor.
The utility model also provides a test system, the test system includes the power and as above-mentioned test equipment, test equipment includes first switch module, second switch module, third switch module and resistance installation module, the resistance installation module is used for detachably and electric connection with the resistance;
the first end of the first switch module is electrically connected with the first end of the second switch module, the first end of the first switch module is also used for being electrically connected with a power supply cathode, and the second end of the first switch module is electrically connected with the first end of the resistor installation module;
the second end of the resistor installation module is electrically connected with the first end of the third switch module, and the second end of the resistor installation module is also used for being electrically connected with a target device;
the second end of the third switch module is electrically connected with the positive electrode of the power supply;
and the second end of the second switch module is used for grounding.
Optionally, the test system further comprises a resistance measuring device and a voltage measuring device;
the positive electrode of the resistance measuring device is electrically connected with the second end of the resistance installation module, and the negative electrode of the resistance measuring device is electrically connected with the first end of the resistance installation module;
the positive electrode of the voltage measuring device is electrically connected with the first end of the third switch module, and the negative electrode of the voltage measuring device is respectively electrically connected with the first end of the first switch module and the first end of the second switch module.
The embodiment of the utility model provides a test equipment and test system, this test equipment includes first switch module, second switch module, third switch module and resistance installation module, and the resistance installation module is used for detachably and electrically connecting with the resistance; the first end of the first switch module is electrically connected with the first end of the second switch module, the first end of the first switch module is also used for being electrically connected with the negative pole of the power supply, and the second end of the first switch module is electrically connected with the first end of the resistor installation module; the second end of the resistor installation module is electrically connected with the first end of the third switch module, and the second end of the resistor installation module is also used for being electrically connected with a target device; the second end of the third switch module is electrically connected with the positive electrode of the power supply; the second end of the second switch module is used for grounding. The embodiment of the utility model provides an in, whether install resistance and the resistance size of resistance through the resistance installation module in the above-mentioned test equipment of adjustment to and control first switch module, second switch module and third switch module closure or disconnection, can realize carrying out the feed test to the target device of difference, do not need the manual work to build feed test circuit for every target device, with this efficiency of software testing has been improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic circuit diagram of a testing apparatus provided by the present invention;
fig. 2 is a second schematic circuit diagram of the testing apparatus according to the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model provides a test equipment, please refer to fig. 1 and fig. 2. The utility model provides a test equipment 1 includes first switch module 10, second switch module 20, third switch module 30 and resistance installation module 40, resistance installation module 40 is used for detachably and electrically connecting with the resistance;
the first end of the first switch module 10 is electrically connected to the first end of the second switch module 20, the first end of the first switch module 10 is further used for electrically connecting to a negative electrode of a power supply, and the second end of the first switch module 10 is electrically connected to the first end of the resistor installation module 40;
a second end of the resistor installation module 40 is electrically connected with a first end of the third switch module 30, and a second end of the resistor installation module 40 is further used for electrically connecting with a target device;
the second end of the third switch module 30 is used for being electrically connected with the positive electrode of the power supply;
the second terminal of the second switch module 20 is used for grounding.
The power supply is used for supplying power to each component in the test equipment 1, wherein the voltage provided by the power supply can be 9V, 10V, 11V or other voltages customized by a user.
In this embodiment, a feed test is performed on the target device by adjusting whether the resistor installation module 40 is installed with a resistor and the resistance of the resistor, and controlling the first switch module 10, the second switch module 20, and the third switch module 30 to be turned on or off, wherein the feed test is used to verify the independence of the target device to be tested. For a specific test case of performing a power feeding test on a target device by using the test apparatus 1, refer to the following contents.
Optionally, the resistor installation module 40 is configured to connect to a pluggable resistor, where the pluggable resistor is a variable resistor.
It should be understood that in the case that no resistor is connected to the resistor installation module 40, there is no internal connection between the two ends of the resistor installation module 40, i.e. an open circuit.
Optionally, the testing device 1 further comprises a control module, which is communicatively connected with at least the second switch module 20 and the third switch module 30.
It should be noted that, the control module is not shown in fig. 1 and fig. 2, and optionally, the control module is a Programmable Logic Controller (PLC), and it should be understood that the control module may also be another type of Controller, which is not limited in this respect.
In an optional implementation manner, the control module is further communicatively connected to the first switch module 10, and the control module controls the first switch module 10 to open or close by sending a control instruction to the first switch module 10.
In another alternative embodiment, the control module is not communicatively connected to the first switch module 10, and the first switch module 10 is a single-pole single-throw switch.
Optionally, the second switch module 20 and the third switch module 30 are configured to receive a control instruction of the control module, and execute a switch operation according to the control instruction.
It should be understood that the control module controls the second switch module 20 and the third switch module 30 to perform switching operations including switch opening and switch closing by sending control instructions to the second switch module 20 and the third switch module 30.
Optionally, the second switch module 20 is configured to close within a first time interval according to the control instruction;
the third switching module 30 is configured to turn off within the first time interval according to the control instruction.
In a test case, the control module sends a control command to control the second switch module 20 to be closed in a first time interval and control the third switch module 30 to be opened in the first time interval, so as to perform a feeding test on the target device. The specific test case please refer to the following content.
Optionally, the second switch module 20 is configured to turn off within a second time interval according to the control instruction;
the third switching module 30 is configured to turn off within the second time interval according to the control instruction.
In a test case, the control module sends a control command to control the second switch module 20 to be turned off in the second time interval, and controls the third switch module 30 to be turned off in the second time interval, so as to perform the power feeding test on the target device. The specific test case please refer to the following contents.
The embodiment of the utility model provides a test equipment 1, test equipment 1 includes first switch module 10, second switch module 20, third switch module 30 and resistance installation module 40, and resistance installation module 40 is used for detachably and electrically connecting with the resistance; the first end of the first switch module 10 is electrically connected with the first end of the second switch module 20, the first end of the first switch module 10 is further used for electrically connecting with a power supply cathode, and the second end of the first switch module 10 is electrically connected with the first end of the resistor installation module 40; the second end of the resistor installation module 40 is electrically connected with the first end of the third switch module 30, and the second end of the resistor installation module 40 is also used for electrically connecting with a target device; the second end of the third switch module 30 is used for being electrically connected with the positive electrode of the power supply; the second terminal of the second switch module 20 is used for grounding. The embodiment of the utility model provides an in, whether install resistance and the resistance size of resistance through the resistance installation module 40 in the above-mentioned test equipment 1 of adjustment to and control first switch module 10, second switch module 20 and third switch module 30 closure or disconnection, can realize carrying out the feed test to different target devices, do not need the manual work to build feed test circuit for every target device, with this efficiency of software testing has been improved.
Optionally, the target device includes a data terminal, the second terminal of the resistor installation module 40 is configured to be electrically connected to the data terminal of the target device, and the first terminal of the third switch module 30 is configured to be electrically connected to the data terminal of the target device.
Optionally, the target device includes a power supply terminal and a ground terminal, the second terminal of the second switch module 20 is further configured to be electrically connected to the ground terminal of the target device, and the first terminal of the third switch module 30 is further configured to be electrically connected to the power supply terminal of the target device.
In this embodiment, the target Device is also called a Device Under Test (DUT), and the target Device includes a ground terminal, a power supply terminal, and a data terminal for Device interaction, which is also called an output terminal.
The second end of the resistor installation module 40 is further configured to be electrically connected to a data terminal of the target device to be tested, and the second end of the second switch module 20 is grounded through a ground terminal of the target device.
Optionally, the second end of the resistor installation module 40 is further configured to be electrically connected to a positive electrode of the resistor measurement apparatus, and the first end of the resistor installation module 40 is further configured to be electrically connected to a negative electrode of the resistor measurement apparatus.
Optionally, the resistance measuring device is a multimeter.
In this embodiment, the resistance measuring device is used to measure the resistance value of the resistor mounted on the resistor mounting module 40. If the resistance value detected by the resistance measuring device is infinite, it indicates that the resistance installation module 40 is not connected to the resistor.
Optionally, the first end of the third switch module 30 is further configured to be electrically connected to a positive electrode of a voltage measuring device, the first end of the first switch module 10 is further configured to be electrically connected to a negative electrode of the voltage measuring device, and the first end of the second switch module 20 is further configured to be electrically connected to a negative electrode of the voltage measuring device.
Optionally, the voltage measuring device is an oscilloscope.
In this embodiment, the voltage measuring device is configured to record a voltage change of the target device during the feeding test process, and generate a voltage change curve, where the voltage change curve is used to characterize a feeding test result of the target device.
A test case for performing a power feeding test on a target device by using the test apparatus 1 is specifically described below with reference to fig. 1 and 2:
test case 1:
the resistor is not connected to the resistor installation module 40, so that both ends of the resistor installation module 40 are in an open circuit state, the positive electrode of the resistor measurement device is connected to the second end of the resistor installation module 40, and the negative electrode of the resistor measurement device is connected to the first end of the resistor installation module 40, so that the resistance value of the resistor installation module 40 is detected by using the resistor measurement device. After determining that both ends of the resistance installation module 40 are open, the target device, the voltage measurement device, and the power supply are electrically connected to the test apparatus 1, respectively.
Specifically, the negative electrode of the power supply is electrically connected to the first end of the first switch module 10, and the positive electrode of the power supply is electrically connected to the second end of the third switch module 30; the anode of the voltage measuring device is electrically connected with the first end of the third switch module 30, and the cathode of the voltage measuring device is electrically connected with the first end of the first switch module 10 and the first end of the second switch module 20 respectively; the data terminal of the setting target device is electrically connected to the second terminal of the resistor installation module 40 and the first terminal of the third switch module 30, respectively, the ground terminal of the setting target device is electrically connected to the second terminal of the second switch module 20, and the power supply terminal of the setting target device is electrically connected to the first terminal of the third switch module 30.
Further, the first switch module 10 is controlled to be in an off state, the control module sends a control instruction to the second switch module 20 and the third switch module 30, so that the second switch module 20 is turned on within a first time interval, the third switch module 30 is turned off within the first time interval, and a voltage measurement device is used for recording voltage changes of the third switch module 30 within a certain time period from before the turning-off to after the turning-off, so as to perform a feeding test.
Test case 2:
the resistor is not connected to the resistor installation module 40, so that both ends of the resistor installation module 40 are in an open circuit state, the positive electrode of the resistor measurement device is connected to the second end of the resistor installation module 40, and the negative electrode of the resistor measurement device is connected to the first end of the resistor installation module 40, so that the resistor measurement device is used to detect the resistance value of the resistor installation module 40. After it is determined that both ends of the resistance installation module 40 are open, the target device, the voltage measurement device, and the power supply are electrically connected to the test apparatus 1, respectively.
Specifically, the negative electrode of the power supply is electrically connected to the first end of the first switch module 10, and the positive electrode of the power supply is electrically connected to the second end of the third switch module 30; the anode of the voltage measuring device is electrically connected with the first end of the third switch module 30, and the cathode of the voltage measuring device is electrically connected with the first end of the first switch module 10 and the first end of the second switch module 20 respectively; the data terminal of the setting target device is electrically connected to the second terminal of the resistor installation module 40 and the first terminal of the third switch module 30, respectively, the ground terminal of the setting target device is electrically connected to the second terminal of the second switch module 20, and the power supply terminal of the setting target device is electrically connected to the first terminal of the third switch module 30.
Further, the first switch module 10 is controlled to be in a closed state, the control module sends a control instruction to the second switch module 20 and the third switch module 30, so that the second switch module 20 is closed within a first time interval, the third switch module 30 is opened within the first time interval, and a voltage measurement device is used for recording voltage changes of the third switch module 30 within a certain time period from before the third switch module is opened to after the third switch module is opened, so as to perform a feeding test.
Test case 3:
a resistor is connected to the resistor mounting block 40, and the positive electrode of the resistor measuring device is connected to the second end of the resistor mounting block 40, and the negative electrode of the resistor measuring device is connected to the first end of the resistor mounting block 40, so that the resistance value of the resistor mounting block 40 is detected by the resistor measuring device. Alternatively, in the case where the resistance value detected by the resistance measuring device is greater than 10K Ω, the target device, the voltage measuring device, and the power supply are electrically connected to the test apparatus 1, respectively.
Specifically, the negative electrode of the power supply is electrically connected to the first end of the first switch module 10, and the positive electrode of the power supply is electrically connected to the second end of the third switch module 30; the anode of the voltage measuring device is electrically connected with the first end of the third switch module 30, and the cathode of the voltage measuring device is electrically connected with the first end of the first switch module 10 and the first end of the second switch module 20 respectively; the data terminal of the setting target device is electrically connected to the second terminal of the resistor installation module 40 and the first terminal of the third switch module 30, respectively, the ground terminal of the setting target device is electrically connected to the second terminal of the second switch module 20, and the power supply terminal of the setting target device is electrically connected to the first terminal of the third switch module 30.
Further, the first switch module 10 is controlled to be in a closed state, the control module sends a control instruction to the second switch module 20 and the third switch module 30, so that the second switch module 20 and the third switch module 30 are both switched off within a second time interval, and a voltage measurement device is used for recording voltage changes of the third switch module 30 within a certain time period from before the switching-off to after the switching-off, so as to perform a feeding test.
It should be understood that, in order to delay the aging of the resistor installation module 40 caused by frequent plugging and unplugging, the present embodiment implements the automation of the test equipment by providing the first switch module 10 and implementing the switching between different test cases for the feed test of the test equipment to the target terminal through the opening and closing of the first switch module 10.
The utility model also provides a test system, the test system includes the power and as above-mentioned test equipment, the test circuit includes first switch module, second switch module, third switch module and resistance installation module, the resistance installation module is used for detachably and resistance electricity to be connected;
the first end of the first switch module is electrically connected with the first end of the second switch module, the first end of the first switch module is also used for being electrically connected with a power supply cathode, and the second end of the first switch module is electrically connected with the first end of the resistor installation module;
the second end of the resistor installation module is electrically connected with the first end of the third switch module, and the second end of the resistor installation module is also used for being electrically connected with a target device;
the second end of the third switch module is electrically connected with the positive electrode of the power supply;
and the second end of the second switch module is used for grounding.
Optionally, the test system further comprises a resistance measuring device and a voltage measuring device;
the positive electrode of the resistance measuring device is electrically connected with the second end of the resistance installation module, and the negative electrode of the resistance measuring device is electrically connected with the first end of the resistance installation module;
the positive electrode of the voltage measuring device is electrically connected with the first end of the third switch module, and the negative electrode of the voltage measuring device is respectively electrically connected with the first end of the first switch module and the first end of the second switch module.
It should be understood that, since the test system includes the test device as described in the above embodiments, the test system has the technical effects of the test device, and in order to avoid repetition, the details are not described here.
It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
Furthermore, the descriptions in the present application related to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of technical features indicated are implicitly being indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The above is only the optional embodiment of the present invention, and not limiting the patent scope of the present invention, and all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the patent protection scope of the present invention.
Claims (10)
1. The test equipment is characterized by comprising a first switch module, a second switch module, a third switch module and a resistor installation module, wherein the resistor installation module is used for being detachably and electrically connected with a resistor;
the first end of the first switch module is electrically connected with the first end of the second switch module, the first end of the first switch module is also used for being electrically connected with a power supply cathode, and the second end of the first switch module is electrically connected with the first end of the resistor installation module;
the second end of the resistor installation module is electrically connected with the first end of the third switch module, and the second end of the resistor installation module is also used for being electrically connected with a target device;
the second end of the third switch module is electrically connected with the positive electrode of the power supply;
and the second end of the second switch module is used for grounding.
2. The test apparatus of claim 1, further comprising a control module communicatively coupled to at least the second switch module and the third switch module.
3. The test equipment of claim 2, wherein the second switch module and the third switch module are configured to receive a control command from the control module and perform a switching operation according to the control command.
4. The test equipment of claim 3, wherein the second switch module is configured to close for a first time interval according to the control command;
and the third switching module is used for switching off within the first time interval according to the control instruction.
5. The test equipment as claimed in claim 3, wherein the second switch module is configured to be turned off in a second time interval according to the control command;
and the third switch module is used for switching off in the second time interval according to the control instruction.
6. The test apparatus of claim 1, wherein the target device comprises a data terminal, the second terminal of the resistor mounting module is configured to electrically connect to the data terminal of the target device, and the first terminal of the third switch module is configured to electrically connect to the data terminal of the target device.
7. The test apparatus of claim 1, wherein the target device comprises a power supply terminal and a ground terminal, the second terminal of the second switch module is further configured to be electrically connected to the ground terminal of the target device, and the first terminal of the third switch module is further configured to be electrically connected to the power supply terminal of the target device.
8. The test apparatus of claim 1, wherein the resistor mounting module is configured to receive a pluggable resistor, the pluggable resistor being a variable resistor.
9. A test system comprising a power supply and a test apparatus according to any of claims 1-8, the test apparatus comprising a first switch module, a second switch module, a third switch module, and a resistor mounting module for removably electrically connecting a resistor;
the first end of the first switch module is electrically connected with the first end of the second switch module, the first end of the first switch module is also used for being electrically connected with a power supply cathode, and the second end of the first switch module is electrically connected with the first end of the resistor installation module;
the second end of the resistor installation module is electrically connected with the first end of the third switch module, and the second end of the resistor installation module is also used for being electrically connected with a target device;
the second end of the third switch module is electrically connected with the positive electrode of the power supply;
and the second end of the second switch module is used for grounding.
10. The test system of claim 9, further comprising a resistance measurement device and a voltage measurement device;
the positive electrode of the resistance measuring device is electrically connected with the second end of the resistance installation module, and the negative electrode of the resistance measuring device is electrically connected with the first end of the resistance installation module;
the positive electrode of the voltage measuring device is electrically connected with the first end of the third switch module, and the negative electrode of the voltage measuring device is electrically connected with the first end of the first switch module and the first end of the second switch module respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202222237657.2U CN217981693U (en) | 2022-08-24 | 2022-08-24 | Test apparatus and test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222237657.2U CN217981693U (en) | 2022-08-24 | 2022-08-24 | Test apparatus and test system |
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| CN217981693U true CN217981693U (en) | 2022-12-06 |
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