A power-on / off test system for multi-device synchronization test

Abstract

This application discloses a power-on / off test system for synchronous testing of multiple devices, comprising: multiple devices under test (DUTs) connected in parallel, each DUT including a voltage input terminal and a signal output terminal; a timing drive unit connected to the voltage input terminal of each DUT, the timing drive unit being used to periodically control the power-on and power-off of the DUTs; and a signal acquisition terminal connected to the signal output terminal of each DUT, the signal acquisition terminal being used to acquire and store the signals of the DUTs. This application features a high degree of automation in the testing process and enables synchronous testing of multiple devices. Furthermore, the signal acquisition terminal can communicate with the DUTs via a network, and the system is adaptable to any device capable of network communication with the signal acquisition terminal, significantly improving the versatility of the test.

Description

Technical Field

[0001] This application belongs to the field of equipment testing technology, specifically relating to a power-on / off test system for synchronous testing of multiple devices. Background Technology

[0002] In the field of industrial control, various electronic devices usually need to operate continuously for a long time, which requires high stability. System crashes are unacceptable. To ensure the reliability and stability of the equipment under complex operating conditions, it is necessary to conduct sufficient power-on and power-off tests before leaving the factory to verify its operational reliability during repeated start-ups and shutdowns.

[0003] Currently, power-on / off testing of equipment mostly relies on manual operation or the use of dedicated testing platforms, resulting in low automation. Furthermore, due to the limited interfaces of the computers used to collect test data, power-on / off testing can only be performed on one or a few devices under test at a time, leading to low testing efficiency. Additionally, it can only test devices under test that can communicate normally with the computer, resulting in poor versatility. Utility Model Content

[0004] The purpose of this application is to provide a power-on / off test system and method for multi-device synchronous testing, so as to solve the technical problems of low automation, low testing efficiency and poor versatility in the existing technology of device power-on / off testing.

[0005] To achieve the above objectives, the first aspect of this application provides a power-on / off test system for synchronous testing of multiple devices, comprising:

[0006] Multiple devices under test are connected in parallel, and each device under test includes a voltage input terminal and a signal output terminal;

[0007] A timing drive unit is connected to the voltage input terminal of each of the devices under test, and the timing drive unit is used to periodically control the power-on and power-off of the devices under test;

[0008] A signal acquisition terminal is connected to the signal output terminal of each of the devices under test, and the signal acquisition terminal is used to acquire and store the signals of the devices under test.

[0009] In one or more embodiments, a switch is also included, the switch having a plurality of third input terminals and a third output terminal connected one-to-one with the signal output terminals of the plurality of said devices under test;

[0010] The signal acquisition terminal is connected to the third output terminal, and the multiple devices under test, the switch, and the signal acquisition terminal are located in the same local area network.

[0011] In one or more embodiments, the device under test is connected to the switch via a network port, and the switch is connected to the signal acquisition terminal via a network port.

[0012] In one or more embodiments, the timing drive unit includes:

[0013] A timer has a first input terminal and a first output terminal, wherein the first input terminal is used to connect to an external power supply;

[0014] The driving power supply has a second input terminal and a second output terminal, the second input terminal being connected to the first input terminal, and the second output terminal being connected to the voltage input terminal of each of the devices under test.

[0015] The timer is used to periodically control the power-on and power-off of the drive power supply.

[0016] In one or more embodiments, the driving power supply is a 24V DC power supply, and the external power supply is a 220V AC power supply.

[0017] In one or more embodiments, the signal acquisition terminal is a computer with testing software deployed on it.

[0018] In one or more embodiments, the device under test is connected to the signal acquisition terminal via a network port.

[0019] The advantages of this application, which differ from existing technologies, are:

[0020] This application uses a timing drive unit to control multiple devices under test (DUTs) to periodically power on and off. When the DUTs are powered on or off, the signal acquisition terminal can acquire the signals output by the DUTs and determine whether the DUTs have been successfully powered on or off based on the signals output by the DUTs, thus realizing the power-on / off test of the DUTs. The entire test process is highly automated and can achieve synchronous testing of multiple devices. Furthermore, the signal acquisition terminal can communicate with the DUTs via a network, and the system can be adapted to any device that can communicate with the signal acquisition terminal via a network, significantly improving the versatility of the test. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an existing equipment power-on / off test device;

[0023] Figure 2 This is a schematic diagram of one embodiment of the power-on / off test system for multi-device synchronous testing according to this application.

[0024] Explanation of key figure labels:

[0025] Device under test 100; Voltage input terminal 101; Signal output terminal 102;

[0026] Timing drive unit 200; Timer 201; First input terminal 2011; First output terminal 2012; Drive power supply 202; Second input terminal 2021; Second output terminal 2022;

[0027] Signal acquisition terminal 300;

[0028] Switch 400; Third input terminal 401; Third output terminal 402. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0030] Please see Figure 1 , Figure 1 This is a schematic diagram of an existing equipment power-on / off testing device. (For example...) Figure 1 As shown, existing equipment power-on / off testing devices generally include a computer and a switch control board. The computer is connected to the switch control board, the switch control board is connected to the device under test (DUT), and the computer is connected to the DUT via a COM interface.

[0031] During testing, the computer sends control signals through the control software. After being processed by the MCU circuit of the switch control board, the power supply of the device under test is controlled by the MOS switch circuit. At the same time, the computer reads the power-on information of the device under test through the COM interface.

[0032] This traditional testing method has the following drawbacks: 1. Due to the limited number of COM ports on a computer, only one or a few devices under test can be tested each time, resulting in low testing efficiency; 2. It can only test devices that can communicate normally with the computer's COM port, resulting in poor versatility.

[0033] To address the aforementioned issues and improve the efficiency and versatility of equipment power-on / off testing, the applicant has developed a novel power-on / off testing system for synchronous testing of multiple devices. Please refer to [link / reference needed]. Figure 2 , Figure 2 This is a schematic diagram of one embodiment of the power-on / off test system for multi-device synchronous testing of this application.

[0034] like Figure 2 As shown, the power-on / off test system includes multiple devices under test 100 connected in parallel, each device under test 100 including a voltage input terminal 101 and a signal output terminal 102.

[0035] For example, the device under test 100 can be a servo motor, frequency converter, industrial computer, sensor, etc.

[0036] The system also includes a timing drive unit 200 and a signal acquisition terminal 300. The timing drive unit 200 is connected to the voltage input terminal 101 of each device under test 100 and is used to periodically control the power-on and power-off of the device under test 100. The signal acquisition terminal 300 is connected to the signal output terminal 102 of each device under test 100 and is used to acquire and store the signals of the device under test 100.

[0037] In one implementation, the signal acquisition terminal 300 may be a computer with testing software deployed on it.

[0038] Understandably, the timing drive unit 200 can control multiple devices under test 100 to periodically power on and off, thereby realizing the periodic power-on and power-off of the devices under test 100. When the devices under test 100 are powered on or off, the signal acquisition terminal 300 can acquire the signal output by the devices under test 100 and determine whether the devices under test 100 has been successfully powered on or off based on the signal output by the devices under test 100, thereby realizing the power-on and power-off test of the devices under test 100.

[0039] The entire testing process is highly automated and can achieve simultaneous testing of multiple devices. Furthermore, the signal acquisition terminal 300 can communicate with the device under test 100 via a network. The system is compatible with any device that can communicate with the signal acquisition terminal 300 via a network, which significantly improves the versatility of the test.

[0040] Specifically, in this embodiment, the signal acquisition terminal 300 is connected to multiple devices under test 100 via a switch 400. The switch 400 has multiple third input terminals 401 and a third output terminal 402 that are connected one-to-one with the signal output terminals 102 of the multiple devices under test 100. The signal acquisition terminal 300 is connected to the third output terminal 402.

[0041] To ensure that the signal acquisition terminal 300 can detect the device under test 100 and acquire its signal, multiple devices under test 100, switches 400 and signal acquisition terminal 300 are located in the same local area network.

[0042] Specifically, in this embodiment, the device under test 100 is connected to the switch 400 via a network port, and the switch 400 is connected to the signal acquisition device via a network port.

[0043] In this embodiment, the timing drive unit 200 includes a timer 201 and a drive power supply 202. The timer 201 has a first input terminal 2011 and a first output terminal 2012. The first input terminal 2011 is used to connect to an external power supply.

[0044] The driving power supply 202 has a second input terminal 2021 and a second output terminal 2022. The second input terminal 2021 is connected to the first input terminal 2011, and the second output terminal 2022 is connected to the voltage input terminal of each device under test 100.

[0045] The timer 201 is used to periodically control the power-on and power-off of the drive power supply 202, thereby controlling the power-on and power-off of the device under test 100.

[0046] In one embodiment, the driving power supply 202 can be a 24V DC power supply, and the external power supply can be a 220V AC power supply. The output of the driving power supply 202 can be controlled by the timer 201, thereby achieving the purpose of controlling the device under test 100 to periodically turn on and off.

[0047] The following details the workflow of the power-on / off test system for multi-device synchronous testing in this application.

[0048] First, connect the signal acquisition terminal 300, switch 400, device under test 100, driver power supply 202, timer 201 and external power supply.

[0049] Set the power-on and power-off cycles of timer 201;

[0050] Configure the IP addresses of the signal acquisition terminal 300, switch 400 and device under test 100 to ensure they are on the same local area network;

[0051] Set the power-on and power-off cycles to be consistent with those of timer 201 in the test software of signal acquisition terminal 300;

[0052] Set the number of test cycles and the Ping IP response threshold for the testing software;

[0053] Initialization: Determine whether the signal acquisition terminal 300 can detect all devices under test 100. After ensuring that all devices under test 100 can be detected normally, start the test. During the test, timer 201 controls all devices under test 100 to periodically turn on and off, and the signal acquisition terminal 300 continuously acquires and stores the signals of all devices under test 100.

[0054] After the test is completed, based on the signal stored in the signal acquisition terminal 300, the actual number of successful power-on and power-off cycles of the device under test 100 is determined and compared with the preset number of cycles. If the two are consistent, the power-on and power-off of the device under test 100 is normal. If they are inconsistent, it proves that the cycle power-on and power-off test of the device under test 100 is abnormal and its stability or communication problems need to be further investigated.

[0055] It should be noted that the test software deployed in the signal acquisition terminal 300 in this application is only used to acquire and store the signals output by the device under test 100. Its specific working algorithm is a conventional technical means for those skilled in the art and is not the inventive point of this application. This application constructs a test system based on the connection relationship of each component, which significantly improves the test efficiency and test versatility.

[0056] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0057] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A power-on / off test system for synchronous testing of multiple devices, characterized in that, include: Multiple devices under test are connected in parallel, and each device under test includes a voltage input terminal and a signal output terminal; A timing drive unit is connected to the voltage input terminal of each of the devices under test, and the timing drive unit is used to periodically control the power-on and power-off of the devices under test; A signal acquisition terminal is connected to the signal output terminal of each of the devices under test, and the signal acquisition terminal is used to acquire and store the signals of the devices under test.

2. The power-on / off test system according to claim 1, characterized in that, It also includes a switch having a plurality of third input terminals and a third output terminal that are connected one-to-one with the signal output terminals of the plurality of devices under test; The signal acquisition terminal is connected to the third output terminal, and the multiple devices under test, the switch, and the signal acquisition terminal are located in the same local area network.

3. The power-on / off test system according to claim 2, characterized in that, The device under test is connected to the switch via a network port, and the switch is connected to the signal acquisition terminal via a network port.

4. The power-on / off test system according to claim 1, characterized in that, The timing drive unit includes: A timer has a first input terminal and a first output terminal, wherein the first input terminal is used to connect to an external power supply; The driving power supply has a second input terminal and a second output terminal, the second input terminal being connected to the first input terminal, and the second output terminal being connected to the voltage input terminal of each of the devices under test. The timer is used to periodically control the power-on and power-off of the drive power supply.

5. The power-on / off test system according to claim 4, characterized in that, The driving power supply is a 24V DC power supply, and the external power supply is a 220V AC power supply.

6. The power-on / off test system according to claim 1, characterized in that, The signal acquisition terminal is a computer with testing software deployed on it.

7. The power-on / off test system according to claim 1, characterized in that, The device under test is connected to the signal acquisition terminal via a network port.

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