Automatic test system and test method for dormant current of automobile intelligent cabin

Abstract

The invention, which belongs to the technical field of host sleep current automatic testing, provides an automobile intelligent cabin sleep current automatic testing system and testing method, comprising a testing module, an analog power supply module, a domain control host and a current detection module. Before testing, a tester connects the equipment, and starts testing after determining that the equipment is normally connected; the analog power supply module outputs power to the domain control host, and the domain control host works. And after the domain control host works for a period of time, the test module outputs a control instruction to the analog power module to control the analog power module to stop power output. The test module collects the voltage and current of the domain control host in a dormant state in real time through the simulation power supply module and the current detection module, and the test module reads a work log of the domain control host; the test module stops the test when the test reaches the maximum test time; and the test module normalizes the data acquired in the test process. According to the invention, the test efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of automated testing technology for host computer sleep current. Specifically, this invention relates to an automated testing system and method for sleep current in automotive intelligent cockpits. Background Technology

[0002] With the development of the automotive industry, the quality requirements for automobiles are getting higher and higher. As an important part of automobiles, the domain controller needs to be tested before it is put into use, and the testing consumes a lot of manpower and resources.

[0003] Chinese Patent 219610931U discloses a multi-functional integrated wiring harness for research and testing of in-vehicle navigation devices, belonging to the field of in-vehicle navigation device research and testing accessories. It includes a main body of the wiring harness, with a product host connector at one end and branching at the other end into a power supply test line and a data line. The data line has a data connector at its end, and the power supply test line branches into a power supply wire and an ACC detection line. The end of the power supply wire is connected to an OBD connector, and the end of the ACC detection line is connected to an ACC car charger connector.

[0004] Existing technologies are inefficient for testing domain controllers and cannot meet the need for rapid testing of domain controllers. Summary of the Invention

[0005] The present invention aims to provide an automated testing system and method for the sleep current of automotive intelligent cockpits, in order to improve the testing efficiency of domain controller hosts.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] This invention provides an automated testing system for the sleep current of an automotive intelligent cockpit, comprising a test module, an analog power supply module, a domain controller, and a current detection module. The output terminal of the test module is connected to the input terminal of the analog power supply module, the output terminal of the analog power supply module is connected to the input terminal of the domain controller, the output terminal of the domain controller is connected to the input terminal of the analog power supply module, the output terminal of the analog power supply module is connected to the input terminal of the test module, the output terminal of the domain controller is connected to the input terminal of the test module, the output terminal of the domain controller is connected to the input terminal of the current acquisition module, and the output terminal of the current acquisition module is connected to the input terminal of the test module.

[0008] The test module outputs control commands to the analog power module, the analog power module outputs power to the domain controller, the domain controller inputs voltage data to the test module through the analog power module, the domain controller outputs work log data to the test module, and the domain controller outputs current data to the test module through the current detection module.

[0009] The testing module uses a computer.

[0010] The computer is connected to the analog power module via a USB data cable, the computer is connected to the current acquisition module via a USB data cable, and the computer is connected to the domain controller host via an ADB data cable.

[0011] The analog power supply module uses a programmable power supply.

[0012] The programmable power supply is connected to the domain controller via a power cord and a USB data cable.

[0013] The current detection module uses a digital multimeter, which is connected to the domain controller via a USB data cable and to the test module via a USB data cable.

[0014] This invention provides a test method for an automated testing system for the sleep current of an automotive intelligent cockpit:

[0015] Step 1: The tester connects the device and begins testing after confirming that the device connection is normal;

[0016] Step 2: The analog power module outputs power to the domain controller, and the domain controller starts working;

[0017] Step 3: After the domain controller has been working for a period of time, the test module outputs control commands to the analog power module to control the analog power module to stop power output;

[0018] Step 4: The test module collects the voltage and current of the domain controller in sleep mode in real time through the simulated power supply module and current detection module, and reads the domain controller's working log.

[0019] Step 5: The test module stops the test when the maximum test time is reached; the test module then organizes the data collected during the test.

[0020] In step two, the test module sets the power output of the simulated power module according to the operating voltage of the domain controller.

[0021] In step four, the test module controls the analog power supply module to collect voltage data of the domain controller host in sleep mode via SCPI commands, and the test module controls the current detection module to collect current data of the domain controller host in sleep mode via SCPI commands.

[0022] The technical effects of this invention are as follows:

[0023] (1) This invention improves testing efficiency and automation level. The test module realizes real-time control of the analog power supply module and current detection module through SCPI command and USB interface, without the need for manual intervention in power supply switching, data acquisition and log reading.

[0024] (2) This invention supports standardized testing of multiple domain controllers and can automatically detect the dormant current of multiple devices in sequence, meeting the batch quality inspection needs of the production line and greatly shortening the testing cycle.

[0025] (3) The test environment of this invention is flexible and controllable. It is independent of the actual vehicle and uses a programmable power supply to simulate the power supply. The test can be completed without installing the domain controller host in the actual vehicle, which solves the problems of limited space and complicated wiring in the actual vehicle test.

[0026] (4) The power supply simulation module in this invention can accurately set voltage and current limits, which can simulate the stable output of the vehicle power supply and protect the domain control host through current limit to avoid overcurrent damage and improve test safety.

[0027] (5) The data acquisition accuracy and reliability of the present invention are improved. The current detection module acquires current data in real time in the sleep state through SCPI command, and the analog power supply module acquires voltage data synchronously.

[0028] (6) The testing process of this invention is standardized, and the data generated during the testing process is complete. The testing module automatically generates standardized log files from voltage, current, and log data, which include time information, facilitating test report archiving and subsequent auditing. Attached Figure Description

[0029] This manual includes the following figures, which illustrate the following:

[0030] Figure 1 This is a logical structure block diagram of an automated testing system and method for sleep current in an intelligent automotive cockpit according to the present invention.

[0031] Figure 1 The following modules are labeled as follows: 1. Test module; 2. Analog power supply module; 3. Domain controller host; 4. Current detection module. Detailed Implementation

[0032] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.

[0033] This invention provides an automated testing system for the dormant current of an automotive intelligent cockpit, comprising a test module 1, an analog power supply module 2, a domain controller 3, and a current detection module 4. The output of the test module 1 is connected to the input of the analog power supply module 2, the output of the analog power supply module 2 is connected to the input of the domain controller 3, the output of the domain controller 3 is connected to the input of the analog power supply module 2, the output of the analog power supply module 2 is connected to the input of the test module 1, the output of the domain controller 3 is connected to the input of the current acquisition module, and the output of the current acquisition module is connected to the input of the test module 1.

[0034] Test module 1 outputs control commands to analog power module 2, analog power module 2 outputs power to domain controller 3, domain controller 3 inputs voltage data to test module 1 through analog power module 2, domain controller 3 outputs work log data to test module 1, and domain controller 3 outputs current data to test module 1 through current detection module 4.

[0035] Test module 1 uses a computer. The computer is connected to analog power supply module 2 via a USB data cable, to the current acquisition module via a USB data cable, and to the domain controller host 3 via an ADB data cable. Analog power supply module 2 uses a programmable power supply. The programmable power supply is connected to the domain controller host 3 via a power cord and a USB data cable. Current detection module 4 uses a digital multimeter. The digital multimeter is connected to the domain controller host 3 via a USB data cable, and to test module 1 via a USB data cable.

[0036] This invention provides a test method for an automated testing system for the sleep current of an automotive intelligent cockpit:

[0037] Step 1: The tester connects the device and begins testing after confirming that the device connection is normal;

[0038] Step 2: Analog power module 2 outputs power to domain controller 3, and domain controller 3 starts working;

[0039] Step 3: After the domain controller host 3 has been working for a period of time, the test module 1 outputs a control command to the analog power module 2 to control the analog power module 2 to stop power output;

[0040] Step 4: Test module 1 collects the voltage and current of the domain controller 3 in sleep mode in real time through the simulated power supply module 2 and the current detection module 4. Test module 1 reads the working log of the domain controller 3.

[0041] Step 5: Test module 1 stops the test when the maximum test time is reached; test module 1 organizes the data collected during the test.

[0042] In step two, test module 1 sets the power output of analog power module 2 according to the operating voltage of domain controller host 3.

[0043] In step four, test module 1 controls analog power module 2 to collect voltage data of domain controller 3 in sleep mode via SCPI commands, and test module 1 controls current detection module 4 to collect current data of domain controller 3 in sleep mode via SCPI commands.

[0044] The present invention provides a detailed description of an automated testing system for the sleep current of an intelligent automotive cockpit.

[0045] This invention provides an automated testing system for the sleep current of an automotive intelligent cockpit, comprising a test module 1, a simulated power supply module 2, a domain controller 3, and a current detection module 4. The test module 1 uses a computer to control the power output of the simulated power supply module 2 to simulate the sleep state of the domain controller 3. When the domain controller 3 is in sleep state, the simulated power supply module 2 collects the voltage data of the domain controller 3 in real time, and the current detection module 4 collects the current data of the domain controller 3 in real time and reads the working log of the domain controller 3.

[0046] The simulated power supply module 2 uses a programmable power supply to provide power to the domain controller 3, simulating the normal operation of the domain controller 3. Upon receiving a control command from the test module 1, it cuts off the power supply to the domain controller 3 to simulate its sleep state, and collects the voltage data of the domain controller 3 in its sleep state, transmitting it to the test module 1. This invention simulates the normal operation of the domain controller 3 using the simulated power supply module 2, eliminating the need for testing in a real vehicle, thus improving testing flexibility and enabling batch testing, thereby increasing testing efficiency.

[0047] The current detection module 4 uses a digital multimeter to collect current data of the domain controller 3 in sleep mode and transmits the collected data to the test module 1.

[0048] The connection relationships of an automated testing system for sleep current in an intelligent automotive cockpit according to the present invention are described in detail below.

[0049] The computer is connected to the programmable power supply via a USB cable. The programmable power supply is connected to the power input of the domain controller 3 via a power cable. The output of the domain controller 3 is connected to the programmable power supply via a USB cable. The output of the domain controller 3 is connected to the computer via an ADB cable. The output of the domain controller 3 is connected to a digital multimeter via a USB cable. The digital multimeter is connected to the computer via a USB cable.

[0050] The following describes in detail an automated testing method for the sleep current of an automotive intelligent cockpit according to the present invention.

[0051] Testers connect the devices and begin testing only after confirming a normal connection to prevent errors caused by connection issues. The computer is connected to the power supply and digital multimeter via USB cables, and then connected to domain controller 3 via an ADB cable. Testing can begin once the computer can successfully retrieve the device ID from domain controller 3 using ADB commands.

[0052] Analog power module 2 outputs power to domain controller 3, which then operates normally. Specifically, the computer uses Keysight power management software to issue control commands to control the power output of the programmable power supply. The power supply voltage is set according to the operating voltage of domain controller 3. In this embodiment, the operating voltage of domain controller 3 is 12V, and the output voltage of the programmable power supply is also set to 12V. The computer limits the current output of analog power module 2; in this embodiment, the maximum current output is 2A to protect domain controller 3 and prevent damage from high current.

[0053] After the domain controller 3 has been operating for a period of time, test module 1 outputs control commands to the analog power module 2 to stop power output. This invention tests the domain controller 3's hibernation state after the domain controller 3 has fully booted up, improving the realism of the test. Without affecting test efficiency while ensuring test effectiveness, test module 1 begins testing after the domain controller 3 has started operating.

[0054] Test module 1 collects the voltage and current of the domain controller 3 in sleep mode through analog power supply module 2 and current detection module 4, respectively. Specifically, test module 1 controls analog power supply module 2 to collect voltage data of the domain controller 3 in sleep mode via SCPI commands. The SCPI commands are:

[0055] “MEAS:VOLT?”

[0056] Set the voltage value "VOLT [voltage value]"

[0057] Test module 1 controls current detection module 4 to collect current data of domain controller host 3 in sleep mode via SCPI commands. The SCPI commands are:

[0058] "MEAS:CURR?"

[0059] Set the voltage value "CURR[current value]"

[0060] In this invention, SCPI (Standard Commands for Programmable Instruments) defines a set of standard syntax and commands for controlling programmable test and measurement instruments.

[0061] Test module 1 reads the working logs of domain controller host 3 via an Android debugging bridge. Specifically, the computer is connected to domain controller host 3 via an ADB cable. The `adb devices` command is used to check if the connection between the computer and domain controller host 3 is successful. If the connection is successful, the serial number of the device will be received. The computer then uses the `adb pull` command to retrieve the working logs of domain controller host 3 and saves the log files.

[0062] Test module 1 stops the test when the maximum test time is reached and packages the data generated during the test. The data includes the voltage and current data of the domain controller 3 in sleep mode and the working log of the domain controller 3. The computer organizes this data into a unified log file as output credentials. In this embodiment of the invention, the maximum test time for the domain controller 3 is 4 minutes.

[0063] When a computer malfunctions on Domain Controller 3, such as system crashes, application crashes, memory leaks, or black screens, the generated files are marked for analysis by testers.

[0064] This invention improves testing efficiency and automation. The test module 1 uses SCPI commands and a USB interface to achieve real-time control of the analog power supply module 2 and the current detection module 4, eliminating the need for manual intervention in power on / off, data acquisition, and log reading.

[0065] This invention supports standardized testing of multiple domain controllers 3, and can automatically detect the sleep current of multiple devices in sequence, meeting the batch quality inspection needs of the production line and significantly shortening the testing cycle.

[0066] The present invention provides a flexible and controllable testing environment. It is independent of the actual vehicle and uses a programmable power supply to simulate the power supply. The domain controller 3 can be tested without installing it in the actual vehicle, which solves the problems of limited space and complicated wiring in actual vehicle testing.

[0067] In this invention, the power supply simulation module can accurately set voltage and current limits, which can not only simulate the stable output of the vehicle power supply, but also protect the domain control host 3 through current limiting to avoid overcurrent damage and improve test safety.

[0068] The present invention improves the accuracy and reliability of data acquisition. The current detection module 4 acquires current data in real time in the sleep state through SCPI command, and the analog power supply module 2 acquires voltage data synchronously.

[0069] This invention standardizes the testing process and ensures complete data generation during testing. Test module 1 automatically generates standardized log files from voltage, current, and log data, including time information, facilitating test report archiving and subsequent auditing.

[0070] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An automated testing system for the dormant current of an automotive intelligent cockpit, characterized in that: The system includes a test module, an analog power supply module, a domain controller, and a current detection module. The output of the test module is connected to the input of the analog power supply module, the output of the analog power supply module is connected to the input of the domain controller, the output of the domain controller is connected to the input of the analog power supply module, the output of the analog power supply module is connected to the input of the test module, the output of the domain controller is connected to the input of the test module, the output of the domain controller is connected to the input of the current acquisition module, and the output of the current acquisition module is connected to the input of the test module.

2. The automated testing system for sleep current in an automotive intelligent cockpit as described in claim 1, characterized in that: The test module outputs control commands to the analog power module, the analog power module outputs power to the domain controller, the domain controller inputs voltage data to the test module through the analog power module, the domain controller outputs work log data to the test module, and the domain controller outputs current data to the test module through the current detection module.

3. The automated testing system for sleep current in an automotive intelligent cockpit as described in claim 1, characterized in that: The testing module uses a computer.

4. An automated testing system for sleep current in an automotive intelligent cockpit as described in claim 1 or 3, characterized in that: The computer is connected to the analog power module via a USB data cable, the computer is connected to the current acquisition module via a USB data cable, and the computer is connected to the domain controller host via an ADB data cable.

5. The automated testing system for sleep current in an automotive intelligent cockpit as described in claim 1, characterized in that: The analog power supply module uses a programmable power supply.

6. An automated testing system for the sleep current of an automotive intelligent cockpit as described in claim 1 or 5, characterized in that: The programmable power supply is connected to the domain controller via a power cord and a USB data cable.

7. The automated testing system for sleep current in an automotive intelligent cockpit as described in claim 1, characterized in that: The current detection module uses a digital multimeter, which is connected to the domain controller via a USB data cable and to the test module via a USB data cable.

8. A test method for an automated test system for the sleep current of an automotive intelligent cockpit as described in any one of claims 1-7, characterized in that: Step 1: The tester connects the device and begins testing after confirming that the device connection is normal; Step 2: The analog power module outputs power to the domain controller, and the domain controller starts working; Step 3: After the domain controller has been working for a period of time, the test module outputs control commands to the analog power module to control the analog power module to stop power output; Step 4: The test module collects the voltage and current of the domain controller in sleep mode in real time through the simulated power supply module and current detection module, and reads the domain controller's working log. Step 5: The test module stops the test when the maximum test time is reached; the test module then organizes the data collected during the test.

9. The test method of the automated test system for sleep current in an automotive intelligent cockpit as described in claim 8, characterized in that: In step two, the test module sets the power output of the simulated power module according to the operating voltage of the domain controller.

10. The test method of the automated test system for sleep current in an automotive intelligent cockpit as described in claim 8, characterized in that: In step four, the test module controls the analog power supply module to collect voltage data of the domain controller host in sleep mode via SCPI commands, and the test module controls the current detection module to collect current data of the domain controller host in sleep mode via SCPI commands.

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