CN115454903A - Automatic interface plugging and unplugging control device and method - Google Patents
Automatic interface plugging and unplugging control device and method Download PDFInfo
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- CN115454903A CN115454903A CN202210967968.6A CN202210967968A CN115454903A CN 115454903 A CN115454903 A CN 115454903A CN 202210967968 A CN202210967968 A CN 202210967968A CN 115454903 A CN115454903 A CN 115454903A
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- 238000012360 testing method Methods 0.000 claims abstract description 98
- 238000012790 confirmation Methods 0.000 claims description 8
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- 238000004891 communication Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
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- 230000005540 biological transmission Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
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- 238000004458 analytical method Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
Abstract
The application relates to an automatic control device and method for interface plugging, wherein the automatic control device for interface plugging comprises an interface module and a control module, the interface module comprises a first interface and a second interface, the first interface is used for connecting a system to be tested, the second interface is used for connecting test equipment, the first interface is connected with the second interface, and the second interface comprises an enabling end; the control module is connected with the enabling end, and the interface plugging and unplugging automatic control device is adopted to simulate plugging and unplugging operation of the interface on the electrical layer.
Description
Technical Field
The application relates to the technical field of interface detection, in particular to an automatic interface plugging and unplugging control device and method.
Background
The external interface is an important medium for connecting a computer system and external equipment, and the data transmission mode is greatly expanded, so that the function stability of the interface is guaranteed, and the important component for improving the system stability is realized.
The plugging operation is carried out on the interface, and whether the response of the tested system to the electric disconnection and connection of the interface is accurate and reliable can be detected. The traditional automatic plugging device has the defects of large volume, complex structure and poor mobility.
Disclosure of Invention
Therefore, the interface plugging and unplugging automatic control device and the method are provided, and the problem that the plugging and unplugging control device in the prior art is complex in structure is solved.
In one aspect, an interface plugging automation control device is provided, which includes:
the interface module comprises a first interface and a second interface, the first interface is used for connecting a system to be tested, the second interface is used for connecting test equipment, the first interface is connected with the second interface, and the second interface comprises an enabling end;
and the control module is connected with the enabling end.
In one embodiment, the interface module further includes an interface expansion circuit, the control module is electrically connected to the first interface through the interface expansion circuit, and the control module includes a memory for storing a test result.
In one embodiment, the system further comprises a power supply module, wherein an input end of the power supply module is used for being connected with the system to be tested, and an output end of the power supply module is connected with the interface module and the control module.
In one embodiment, the second interface is a USB interface, and the enable terminal is a power supply pin of the USB interface.
In one embodiment, the interface module is a USB HUB circuit.
On the other hand, an interface plugging automatic control method is provided, which is implemented by the interface plugging automatic control device, and includes:
the system to be tested is connected with the test equipment through the interface module, wherein the system to be tested is connected with the first interface of the interface module, the test equipment is connected with the second interface of the interface module, and the second interface comprises an enabling end;
and carrying out enabling control on the enabling end.
In one embodiment, the enabling terminal is enabled and controlled, and the enabling control comprises:
setting a power supply pin of the second interface to be a high level to enable the second interface to be available; or
And setting a power supply pin of the second interface to be at a low level to make the second interface unavailable.
In one embodiment, further comprising:
and responding to the enabling control to obtain a test result of the system to be tested.
In one embodiment, the obtaining a test result of the system under test in response to the enabling control includes:
after the single enabling control is successful, acquiring the confirmation information of the system to be tested;
and after counting the confirmation information, repeatedly performing the enabling control, and recording the frequency and the number of times of enabling control.
In one embodiment, further comprising:
acquiring a power supply voltage of the system to be tested through a first interface;
and converting the power supply voltage to obtain the voltage required by the interface module or the control module, and providing the voltage for the interface module or the control module.
According to the interface plugging and unplugging automatic control device and the interface plugging and unplugging automatic control method, the first interface and the second interface are respectively connected with the system to be tested and the test equipment, the second interface connected with the test equipment is subjected to the control through the control module, the plugging and unplugging operation of the interface is simulated on the electrical layer, and no mechanical movable part is included, so that the structure is simplified, and the carrying and the moving are convenient.
Drawings
FIG. 1 is a block diagram of an exemplary interface plugging/unplugging automation device;
FIG. 2 is a block diagram of an interface plugging/unplugging automation controller according to another embodiment;
FIG. 3 is a circuit diagram of a control module in one embodiment;
FIG. 4 is a circuit diagram of an interface module in one embodiment;
FIG. 5 is a circuit diagram of a power module in one embodiment;
FIG. 6 is a schematic diagram illustrating an exemplary embodiment of an interface plugging/unplugging automation controller;
fig. 7 is a flowchart illustrating an interface plug-in/out automation control method according to an embodiment.
Reference numerals: the system under test comprises a system under test 110, an interface module 120, a first interface 121, a second interface 122, test equipment 130, a control module 140 and a power supply module 150.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated. The structures, proportions, sizes, and other dimensions shown in the drawings and described in the specification are for understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined in the claims, and are not essential to the art, and any structural modifications, changes in proportions, or adjustments in size, which do not affect the efficacy and attainment of the same are intended to fall within the scope of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are used for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms may be changed or adjusted without substantial change in the technical content.
For example, for a vehicle-mounted entertainment system, the vehicle-mounted entertainment system needs to identify external devices such as a mobile phone or a usb disk to obtain additional data or communication, and if a certain device is connected externally, the external device will fail to be connected externally, thereby affecting the normal functions of the system.
Therefore, it is very necessary to perform a plug-and-pull pressure test for the system to identify the access of the external device and to test the fault tolerance.
Through physical plugging, external equipment is repeatedly connected or disconnected, and the most direct plugging test method is adopted, but all relevant equipment for executing physical plugging, such as a mechanical arm, need a driving mechanism and other moving parts, so that the structure is complex, the test needs to be carried out in a fixed place, the mobility is poor, and the test cannot be carried out on the vehicle.
As shown in fig. 1, the present invention provides an interface plugging/unplugging automation control device, including:
the interface module 120, where the interface module 120 includes a first interface 121 and a second interface 122, the first interface 121 is used to connect the system under test 110, and the second interface 122 is used to connect the test equipment 130, where the first interface 121 is connected to the second interface 122, and the second interface 122 includes an enable terminal;
the system under test 110 may be a vehicle-mounted system, and has an access function of implementing an external device through an interface, and performs corresponding data communication or power transmission, and the specific implementation manner may refer to a communication protocol followed by the interface of the system under test 110; on the other hand, the test equipment 130 has a corresponding interface that can be directly connected to the interface of the system under test 110, and follows the same communication protocol as the interface of the system under test 110.
The interface plug-in automatic control device also comprises a control module 140 which is connected with the enabling end.
In this embodiment, the control module 140 simulates the plugging/unplugging state of the test equipment 130 relative to the system under test 110 by controlling the enable terminal of the second interface 122.
Illustratively, a tester connects an interface of the system under test 110 with an interface of the first interface 121, an interface of the second interface 122 with an interface of the test equipment 130 to start a test, the control module 140 sets the second interface 122 to an available state to simulate an access process of the test equipment 130, and the system under test 110 and the test equipment 130 can normally perform data communication or power supply through the interface module 120 to complete a series of operations of accessing external equipment, which mainly includes an identification process of the system under test 110 to the test equipment 130; the control module 140 sets the second interface 122 to the unavailable state, and simulates a disconnection process of the test equipment 130.
In the above embodiment, the interface of the system under test 110 includes, but is not limited to, a USB (Universal Serial Bus) interface, an AUX (Auxiliary signal terminal) interface, or an OBD (On Board Diagnostics, online detection) interface, and the test device 130 is a corresponding device capable of connecting the above interfaces, taking a vehicle-mounted entertainment system as an example, and a common interface thereof is a USB interface, and the test device 130 may be a USB disk or a mobile phone capable of connecting the USB interface through a data line as needed.
The control module 140 performs enabling control on the second interface 122, simulates plugging and unplugging of the test equipment 130, and tests whether the system under test 110 identifies the detection equipment stably and reliably; the equipment of the embodiment is used for plugging and unplugging the interface from the electrical layer, has no additional mechanical motion component, is simple in structure and good in mobility, and is suitable for testing the vehicle-mounted system.
On the other hand, the on-board system requires a variety of external devices that can be connected, and the connected test device 130 can be replaced conveniently through the second interface 122, for example, a usb disk is switched to a mobile phone, so as to implement multi-scenario detection of the system under test 110.
In an embodiment, the interface module 120 further includes an interface expanding circuit, the control module 140 is electrically connected to the first interface 121 through the interface expanding circuit, the control module 140 obtains the test result from the system under test 110 on line through the first interface 121, and the control module 140 includes a memory for storing the test result.
Illustratively, in the multiple enabling control process, the control module 140 synchronously records the number of operations, and each time the control module 140 sets the second interface 122 to the available state, the test equipment 130 accesses the system under test 110, and when the system under test 110 correctly responds to the access operation, the control module 140 receives confirmation information from the interface of the system under test 110, records the confirmation information, and performs classified statistics on the number of successful operations.
The interface module 120 connects the control module 140 with the system under test 110 through the interface expansion circuit, so that data transmission between the system under test 110 and the control module 140 is realized, and the control module 140 can obtain test data, thereby facilitating analysis by a tester.
Illustratively, the control module 140 may employ various units capable of implementing adjustable signals, such as various singlechips, microcontrollers, DSPs (digital signal processors), FPGAs (Field-Programmable Gate arrays), upper computers or Central Processing Units (CPUs), in which the singlechips may be employed in the controller, and the singlechips may be programmed to implement various control functions, for example, in this embodiment, the functions of enabling the collection, processing and demodulation of control signals and level signals are implemented.
In one embodiment, the control module 140 has a structure as shown in fig. 3, and is implemented by using a single chip microcomputer system ATmega32U 4.
In an embodiment, the interface plugging automation control device further includes a power supply module 150, an input end of the power supply module 150 is used for connecting the system under test 110, and an output end of the power supply module 150 is connected to the interface module 120 and the control module 140.
Illustratively, the power supply module 150 is connected to the interface of the system under test 110 through the first interface 121 or directly, so as to obtain a power supply voltage of the system under test 110, and convert the power supply voltage to obtain a voltage required by the interface module 120 or the control module 140.
In an embodiment, as shown in fig. 5, the power supply module 150 uses a DC-DC conversion circuit implemented by TPS63060 to directly supply power to the system under test 110 without an external power supply, so that the interface plug automation controller of the present invention has the advantages of low cost, low power, light weight, small volume and portability, and is suitable for vehicle-mounted testing of a vehicle-mounted system, such as a vehicle-mounted entertainment system.
As shown in fig. 2, in an embodiment, the interface plugging/unplugging automation control device of the present invention is applied to test a USB interface of a vehicle-mounted system, so that the adopted second interface 122 is the USB interface, specifically, a female socket of the USB interface, and according to pin definitions of the USB interface, the female socket includes two data pins DP and DM, a ground pin GND and a power supply pin CL, in this embodiment, the enable terminal is the power supply pin of the USB interface.
Illustratively, under the condition that the ground pin GND of the USB interface is grounded, the power supply pin is connected to the control module 140, when the control module 140 sets the power supply pin to a high level voltage, the second interface 122 may be normally used, and the test device 130 may be connected to the system under test 110 through the interface module 120; when the control module 140 sets the power supply pin to be a low level voltage, the USB interface is in an inactive state, which simulates a disconnection operation of the USB interface.
In an embodiment, the interface module 120 is a USB HUB circuit, and as shown in fig. 4, a GL850G integrated circuit is used to implement USB multi-path expansion, where a port P1 is a first connection port for connecting a USB interface of a vehicle-mounted system, a port P2 is a second connection port for connecting a USB test device 130, the test device 130 may be a USB disk, a USB mobile phone, or the like, and a CL end of the port P2 is connected to the control module 140.
Illustratively, a single chip microcomputer system as shown in fig. 3 is used as the control module 140, the PE2 port of the single chip microcomputer system is connected to the CL port of the USB HUB circuit, and the availability of the USB interface is controlled by programming the output signal of the PE2 port with the single chip microcomputer. When the output is 1, the USB interface works; when the output is 0, the USB interface is in an inoperative state. Meanwhile, the singlechip records the times and the control frequency of the enabling control, and the effects of repeated testing and pressure testing are achieved.
The R9 and R10 interfaces of the single chip microcomputer system realize the flashing and reading operations of the serial port on the single chip microcomputer.
In one embodiment, as shown in fig. 6, an operation flow of an interface plug-in automation control device is provided, which includes:
601, connecting a serial port burning end of the interface plug-in automatic control device with a computer;
and step 604, after the connection is successful, the program starts to run, after the running is finished, the test result and the data are stored in a Flash memory of the single chip microcomputer, and the data are exported through the burning serial port.
In an embodiment, an interface plug-in and unplugging automation control method is provided, which is implemented by the interface plug-in and unplugging automation control device in the foregoing embodiment, as shown in fig. 7, including:
step 702, performing enable control on the enable terminal.
Wherein the enabling control of the steps can be performed by a control module 140, such as a single chip microcomputer.
Illustratively, the system under test 110 is an on-board system, an interface of the system under test 110 is a USB interface, the corresponding test device 130 is a USB disk, the interface module 120 is connected to the USB interface and the USB disk of the on-board system, and the second interface 122 is a USB interface, it can be understood that the second interface 122 is specifically a female socket of the USB interface, into which the USB disk is inserted, the enable terminal is a power supply pin of the female socket, the control module 140 is connected to the power supply pin, and the power supply pin is set to a high level, for example, 5V, so that the second interface 122 is available, and insertion of the test device 130, that is, the USB disk, is simulated; or set the power supply pin to a low level, for example, 0V, so that the second interface 122 is not available, thereby simulating the unplugging of the usb flash disk.
The interface plugging and unplugging automatic control method of the embodiment realizes plugging and unplugging of the interface in an electrical simulation mode, does not adopt complex movable mechanical components, simplifies the realization process, and is beneficial to implementation in a narrow cabin of an automobile.
On the other hand, in the embodiment, the second interface 122 is externally connected to the test equipment 130, and the test equipment 130 can be replaced in the test process to simulate different use conditions of the interfaces.
In an embodiment, the interface plugging automation control method further includes obtaining a test result of the system under test 110 in response to the enabling control.
Illustratively, the interface of the system under test 110 is expanded into a plurality of interfaces through an interface expansion circuit, wherein one of the interfaces is connected to the control module 140, and the control module 140 receives the relevant test information from the system under test 110 while performing enable control; for example, each time the simulated USB test device 130 is successfully plugged or unplugged, the single chip receives the confirmation information from the USB interface.
After the single chip microcomputer counts the confirmation information, the single chip microcomputer repeats enabling control, records the enabling control times and frequency, and stores the test information into a memory so that a tester can analyze the test information, for example, in a single chip microcomputer system shown in fig. 3, R9 and R10 interfaces realize the flash writing and reading operations of a serial port on the single chip microcomputer, and control data and control results in the single chip microcomputer can be derived through the interfaces.
In an embodiment, the interface plugging automation control method further includes obtaining a power supply voltage of the system under test 110 through the first interface 121.
The supply voltage is converted to obtain a voltage required by the interface module 120 or the control module 140, and is provided to the interface module 120 or the control module 140.
Illustratively, the control module 140 is a single chip microcomputer, the working voltage is 5V, and when the interface of the system under test 110 is a USB interface, a 5V power supply voltage may be output, and the power supply module 150 may supply power to the control module, on the other hand, if the interface of the system under test 110 cannot directly supply power to the control module 140, the required voltage may be converted by the power supply module 150.
For an interface module 120 such as the USB HUB shown in fig. 4, which has a 3.3V power demand, it can be converted by the power supply module 150.
In the above embodiment, the system to be tested 110 is used for supplying power, and no external power supply is needed for supporting, so that the flexibility and the mobility of the implementation of the interface plugging and unplugging automation control method are further improved.
It should be understood that although the various steps in the flowcharts of fig. 6-7 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Also, at least some of the steps in fig. 6-7 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.
Claims (10)
1. The utility model provides an automatic controlling device is inserted to interface pull-out which characterized in that includes:
the interface module comprises a first interface and a second interface, the first interface is used for connecting a system to be tested, the second interface is used for connecting test equipment, the first interface is connected with the second interface, and the second interface comprises an enabling end;
and the control module is connected with the enabling end.
2. The interface plugging and unplugging automation control device according to claim 1, wherein the interface module further comprises an interface expansion circuit, the control module is electrically connected to the first interface through the interface expansion circuit, and the control module comprises a memory for storing test results.
3. The automatic interface plugging and unplugging control device according to claim 1, further comprising a power supply module, wherein an input end of the power supply module is used for connecting the system to be tested, and an output end of the power supply module is connected with the interface module and the control module.
4. The automatic interface plugging and unplugging control device according to claim 1, wherein the second interface is a USB interface, and the enable terminal is a power supply pin of the USB interface.
5. The automatic interface plugging and unplugging control device of claim 2, wherein the interface module is a usb stub circuit.
6. An interface plug-in automatic control method, which is realized by the interface plug-in automatic control device of any one of claims 1 to 5, and is characterized by comprising the following steps:
the system to be tested is connected with the test equipment through the interface module, wherein the system to be tested is connected with the first interface of the interface module, the test equipment is connected with the second interface of the interface module, and the second interface comprises an enabling end;
and carrying out enabling control on the enabling end.
7. The method as claimed in claim 6, wherein the enabling control of the enabling terminal includes:
setting a power supply pin of the second interface to be a high level to enable the second interface to be available; or
And setting a power supply pin of the second interface to be at a low level to make the second interface unavailable.
8. The method of claim 6, further comprising:
and responding to the enabling control to obtain a test result of the system to be tested.
9. The method as claimed in claim 8, wherein the obtaining the test result of the system under test in response to the enabling control comprises:
after the single enabling control is successful, acquiring the confirmation information of the system to be tested;
and after counting the confirmation information, repeatedly performing enabling control, and recording the number of times and frequency of enabling control.
10. The method of claim 6, further comprising:
acquiring a power supply voltage of the system to be tested through a first interface;
and converting the power supply voltage to obtain the voltage required by the interface module or the control module, and providing the voltage to the interface module or the control module.
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| CN202210967968.6A CN115454903A (en) | 2022-08-12 | 2022-08-12 | Automatic interface plugging and unplugging control device and method |
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| CN202210967968.6A CN115454903A (en) | 2022-08-12 | 2022-08-12 | Automatic interface plugging and unplugging control device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116089199A (en) * | 2023-03-30 | 2023-05-09 | 湖南华自信息技术有限公司 | IO port testing method and server |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116089199A (en) * | 2023-03-30 | 2023-05-09 | 湖南华自信息技术有限公司 | IO port testing method and server |
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