CN212255518U - Automatic detection system for car lamp driving module - Google Patents

Abstract

The utility model relates to an automatic detecting system of car light drive module, include: the system comprises a programmable power supply, a programmable electronic load, a data acquisition module, a communication module and an industrial personal computer, wherein the programmable power supply is used for supplying power to a tested driving module under the control of the industrial personal computer; the program-controlled electronic load is used for simulating an external vehicle lamp load of the tested driving module under the control of the industrial personal computer; the data acquisition module is used for acquiring voltage and current analog signals of the tested driving module; the industrial personal computer is used for sending a test instruction to the program-controlled power supply, the program-controlled electronic load and the tested drive module through the communication module, receiving test feedback information through the communication module, and outputting a test result according to the test feedback information, the test instruction and the analog signal. From this, can realize car light drive module's automated inspection, effectively solve adopt traditional check out test set to detect car light drive module to exist to measurement personnel require highly and can increase the problem that detects cost and detection error risk.

Description

Automatic detection system for car lamp driving module

Technical Field

The utility model relates to a detect technical field, especially relate to an automatic detecting system of car light drive module.

Background

At present, the variety and functions of electronic parts in the car lamp are increasing, corresponding electronic and electrical performance detection items and requirements are also rapidly increasing, and detection of a multifunctional LED driving module aiming at platform is typical. However, in the current detection field, the number of special detection devices for a certain class of products is small, most of the special detection devices are general-purpose, and the detection items are relatively single. For the detection of the electronic parts of the car lamp, especially the products with relatively complex functions such as the driving module, a plurality of detection devices need to be combined for use, which has very high requirements on detection personnel, and each detection device needs to be operated skillfully. Along with the increasingly complicated electrical performance detection, the multifunctional LED driving module can only be detected by increasing the detection times and the detection time, and a large amount of time is spent in the detection process for repeated labor, so that the detection cost and the detection error risk are increased invisibly, and the traditional detection equipment cannot meet the current situation.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide an automatic detection system for a vehicle lamp driving module, aiming at the problems that the detection of the vehicle lamp driving module by using the conventional detection equipment has high requirements on detection personnel and can increase the detection cost and the risk of detection errors.

An automated detection system for a vehicle lamp driving module, comprising: the program-controlled power supply, the program-controlled electronic load, the data acquisition module, the communication module and the industrial personal computer are all connected with the tested driving module and the industrial personal computer, wherein,

the programmable power supply is used for supplying power to the tested driving module under the control of the industrial personal computer;

the program-controlled electronic load is used for simulating an external vehicle lamp load of the tested driving module under the control of the industrial personal computer;

the data acquisition module is used for acquiring voltage and current analog signals of the tested driving module;

the industrial personal computer is used for sending a test instruction to the program-controlled power supply, the program-controlled electronic load and the tested drive module through the communication module, receiving test feedback information through the communication module, and outputting a test result according to the test feedback information, the test instruction and the analog signal.

In one embodiment, the detection system further comprises: and the current detection module is respectively connected with the tested driving module and the data acquisition module and is used for detecting the current analog signal of the tested driving module.

In one embodiment, the detection system further comprises: the signal source module is respectively connected with the tested driving module and the industrial personal computer and used for simulating a control signal of the whole vehicle controller received by the tested driving module under the control of the industrial personal computer; the industrial personal computer is also used for sending a test instruction to the signal source module.

In one embodiment, the detection system further comprises: the case, the data acquisition module, the communication module and the signal source module are all connected with the industrial personal computer through the case.

In one embodiment, the detection system further comprises: the program-controlled resistance module is respectively connected with the tested driving module and the industrial personal computer and is used for simulating an external resistance load of the tested driving module under the control of the industrial personal computer; the industrial personal computer is also used for sending a test instruction to the program control resistance module.

In one embodiment, the detection system further comprises: the program-controlled switch module is respectively connected with the tested driving module and the industrial personal computer and is used for simulating the working logic of the tested driving module under the control of the industrial personal computer; the industrial personal computer is also used for sending a test instruction to the program control switch module.

In one embodiment, the detection system further comprises: and the power load module is connected with the tested driving module and used for simulating the external power load of the tested driving module.

In one embodiment, the industrial personal computer comprises: and the human-computer interaction interface is used for receiving the test parameters and displaying the test result.

In one embodiment, the industrial personal computer further comprises: and the memory is used for storing the test parameters and the test results.

In one embodiment, the detection system further comprises: and the cabinet control module is used for supplying power, managing safety and controlling on and off of the automatic detection system.

The automatic detection system of the car lamp driving module comprises a programmable power supply, a programmable electronic load, a data acquisition module, a communication module and an industrial personal computer, wherein the power is supplied to the tested driving module through the programmable power supply, the external car lamp load of the tested driving module is simulated through the programmable electronic load, the voltage of the tested driving module is acquired through the data acquisition module, a current analog signal is acquired, and the test instruction is sent to the programmable power supply through the industrial personal computer, the programmable electronic load and the tested driving module through the communication module, test feedback information is received through the communication module, and a test result is output according to the test feedback information, the test instruction and the analog signal. From this, can realize car light drive module's automated inspection, effectively solved adopt traditional check out test set to detect car light drive module to exist to measurement personnel require highly and can increase the problem that detects cost and detection error risk, this detecting system simple structure, scalability height moreover.

Drawings

FIG. 1 is a schematic diagram of an automated inspection system for a vehicle lamp driving module according to an embodiment;

FIG. 2a is a schematic diagram illustrating the detection of quiescent current in a driver module under test in one embodiment;

FIG. 2b is a block diagram illustrating data and program write detection of a driver under test in one embodiment;

FIG. 2c is a schematic diagram illustrating output voltage detection of a driver module under test according to an embodiment;

FIG. 2d is a schematic diagram illustrating the detection of the input signal of the logic port of the tested driver module in one embodiment;

FIG. 2e is a schematic diagram illustrating the detection of the logic port input current of the driver module under test in one embodiment;

FIG. 2f is a diagram illustrating detection of an Outage alarm function of a tested driver module in an embodiment;

FIG. 2g is a schematic diagram illustrating external resistive load detection of a driver module under test according to an embodiment;

FIG. 2h is a schematic diagram illustrating output current detection of a driver module under test in one embodiment;

FIG. 2i is a schematic diagram illustrating start-up delay detection of a driver module under test in one embodiment;

FIG. 2j is a schematic diagram illustrating the detection of the low side switch function of the driver module under test in one embodiment;

fig. 3 is a flow chart illustrating automated detection of a vehicle lamp driving module according to an embodiment.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. 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.

Fig. 1 is a schematic structural diagram of an automated vehicle lamp driving module detecting system according to an embodiment, and referring to fig. 1, the automated vehicle lamp driving module detecting system includes: the system comprises a programmable power supply 11, a programmable electronic load 12, a data acquisition module 13, a communication module 14 and an industrial personal computer 15.

The programmable power supply 11, the programmable electronic load 12, the data acquisition module 13 and the communication module 14 are connected with the tested driving module and the industrial personal computer 15, and the programmable power supply 11 is used for supplying power to the tested driving module under the control of the industrial personal computer 15; the program-controlled electronic load 12 is used for simulating an external vehicle lamp load of a tested driving module under the control of the industrial personal computer 15; the data acquisition module 13 is used for acquiring voltage and current analog signals of the tested driving module; the industrial personal computer 15 is used for sending a test instruction to the programmable power supply 11, the programmable electronic load 12 and the tested drive module through the communication module 14, receiving test feedback information through the communication module 14, and outputting a test result according to the test feedback information, the test instruction and the analog signal.

Specifically, the detection system mainly comprises two parts, namely hardware and software, wherein the hardware can comprise a programmable power supply 11, a programmable electronic load 12, a data acquisition module 13, a communication module 14, an industrial personal computer 15 and other parts, and the software can comprise functions of hardware equipment driving, automatic detection, automatic judgment and the like.

Wherein, programmable power supply 11 can adopt outsourcing standard equipment, and its output links to each other with the power end of being surveyed drive module, and the control end passes through USB interface or RS232 interface etc. and links to each other with industrial computer 15 for carry out voltage waveform output under industrial computer 15's control, in order to supply power for being surveyed drive module.

The programmable electronic load 12 may be a commercially available standard device, an output end of which is connected to an output end of the driving module to be tested, and a control end of which is connected to the industrial personal computer 15 through a General Purpose Interface Bus (GPIB) Interface or the like, and is configured to simulate an external vehicle lamp load (such as an LED of a front light of an automobile) of the driving module to be tested under the control of the industrial personal computer 15.

The data acquisition module 13 may be a commercially available standard device, an input end of which is connected to a detection end of the driving module to be tested, and an output end of which is connected to a bus of the industrial personal computer 15, such as a PCIe (Peripheral Component Interconnect Express) bus, for acquiring analog signals of the driving module to be tested, such as voltage, current, and the like. The voltage analog signal can comprise the output voltage of the tested driving module, the waveform of an alarm output voltage, the waveform of a low-side switch and the like; the current analog signal may include an output current of the driving module under test, an input current of a logic port (i.e., a logic signal input terminal), a quiescent current in a sleep state, a start-up delay signal, and the like. In practical application, a PXIe test board card of NI company can be adopted, the test board card has the advantages of high precision (the voltage precision can reach 0.001V), high acquisition rate (the average single channel can support the sampling rate of 10KHz at most), large data throughput (the average single channel can support 256 paths of analog signal acquisition at most), and the like, and can well meet the monitoring requirements of analog signals such as the voltage, the current and the like of a tested driving module.

It can be understood that the data acquisition module 13 usually acquires a voltage signal, and when the current analog signal of the driving module under test needs to be acquired, the current analog signal of the driving module under test can be detected by the current detection module 16 and converted into a voltage signal, so as to facilitate the acquisition by the data acquisition module 13. That is, in one embodiment, the detection system may further include a current detection module 16, and the current detection module 16 is connected to the driving module under test and the data acquisition module 13, respectively, and is configured to detect a current analog signal of the driving module under test and convert the current analog signal into a voltage signal. The current detection module 16 can be a mutual inductance type current sensor, and after the current of the detected driving module is converted into a voltage signal through the current sensor, the voltage signal is acquired by the data acquisition module 13, so that the measurement accuracy can be ensured, and the voltage drop between lines of a loop can be reduced to the maximum extent.

The communication module 14 can adopt a purchased standard device, one end of which is connected with the communication bus of the tested driving module, and the other end of which is connected with the bus of the industrial personal computer, and is used for monitoring and detecting the functions of the communication bus of the tested driving module. In practical applications, when the communication bus of the tested driver module is a Local Interconnect Network (LIN) bus, the communication module 14 may be a LIN bus communication module.

The industrial personal computer 15 is pre-stored with detection software, can be developed and obtained through Labview software of NI company, and is used for realizing functions of hardware driving, automatic detection, automatic judgment and the like of equipment, wherein the hardware driving of the equipment refers to the programming of bottom layer driving of various test equipment, the remote control of various different test equipment is realized through the industrial personal computer 15, and the basis for realizing the test automation is realized; the automatic detection means that through programming setting and combination of equipment hardware driving, a plurality of different test equipment can be controlled to work cooperatively, so that complex automatic detection is realized, and the manual operation time and the human error condition are reduced; the automatic judgment means that limit values can be set for the test items, and the real-time result judgment in the detection process is realized through programming.

When the tested drive module is automatically detected, the industrial personal computer 15 can send a test instruction to the programmable power supply 11 and the programmable electronic load 12 according to a preset program, send the test instruction to the tested drive module through the communication module 14, receive test feedback information through the communication module 14, and output a test result according to the test feedback information, the test instruction and the analog signal, so that the tested drive module is automatically detected.

For example, referring to fig. 2a, the detected driving module may be subjected to quiescent current detection, and at this time, the industrial personal computer 15 sends a power supply instruction to the programmable power supply 11, so that the programmable power supply 11 supplies power to the detected driving module, and when the detected driving module is in a powered-on and inactivated state (dormant state), the current detection module 16 and the data acquisition module 13 detect and determine whether the quiescent current of the detected driving module meets the requirement.

Then, referring to fig. 2b, data and program write detection can be performed on the tested driver module. When the tested drive module is in a power-on and activated state, the industrial personal computer 15 writes production information of products such as production date, serial number, software and hardware version number, calibration parameters and the like of the tested drive module into the tested drive module through the communication module 14, reversely reads the information from the tested drive module through the communication module 14 after the writing is finished, and judges whether the content of the information is correct or not; or, the communication module 14 refreshes the calibration program of the tested driver module, and after the refreshing is completed, the communication module 14 reversely reads the successfully refreshed identifier from the tested driver module, and determines whether the successfully updated identifier meets the requirement.

Then, referring to fig. 2c, the output voltage of the driving module under test can be detected. When the driving module to be tested is in the power-on and activated state, the data acquisition module 13 detects and determines whether the output voltage of the driving module to be tested meets the requirement, for example, whether the output voltage is 5V stable voltage.

It should be noted that, this is merely an exemplary illustration, and in other embodiments, the industrial personal computer may further send other test instructions to the programmed power supply, the programmed electronic load, and the tested driver module to implement corresponding function detection, which is not specifically listed here.

In this embodiment, send test command to programmable power supply, programmable electronic load and drive module under test through the industrial computer to receive test feedback information through communication module, and according to test feedback information, test command and analog signal output test result, can realize car light drive module's automated inspection, effectively solved adopt traditional check out test set to car light drive module detect exist require high and can increase the problem that detects cost and detection error risk to measurement personnel.

In one embodiment, referring to fig. 1, the automatic detection system for a vehicle lamp driving module may further include: the signal source module 17 is connected with the tested driving module and the industrial personal computer 15 respectively, and is used for simulating a control signal of the vehicle controller received by the tested driving module under the control of the industrial personal computer 15; the industrial personal computer 15 is further configured to send a test instruction to the signal source module 17.

Specifically, the detection system may further include a signal source module 17, where the signal source module 17 may adopt a customized device, an output end of the signal source module is connected to a logic port of the driving module to be detected, and a control end of the signal source module is connected to a bus of the industrial personal computer 15, and is configured to generate various signals (including a high side and a low side) under the control of the industrial personal computer 15, so as to simulate various signal inputs of the driving module to be detected in the vehicle environment, for example, various control signals sent from the vehicle controller to the vehicle lamp driving module during the vehicle operation.

In the process of automatic detection, referring to fig. 2d, the logic port input signal of the tested driving module may also be detected. When the tested driving module is in a power-on and activated state, the industrial personal computer 15 controls the signal source module 17 to simulate the whole vehicle controller to input waveform signals with specific frequency and duty ratio to the logic port of the tested driving module, reversely reads parameters of the input waveforms from the tested driving module through the communication module 14, and judges whether the identification accuracy meets the requirements.

Next, referring to fig. 2e, the logic port input current of the tested driver module may also be detected. When the tested driving module is in a power-on and activated state, the industrial personal computer 15 controls the signal source module 17 to simulate the whole vehicle controller to input a waveform signal with specific frequency and duty ratio to the logic port of the tested driving module, and in the process, the current detection module 16 and the data acquisition module 13 detect and judge whether the input current of the logic port of the tested driving module meets the requirement or not.

Next, referring to fig. 2f, the out alarm function of the tested driver module can be detected. When the tested drive module is in a power-on and activated state, the industrial personal computer 15 controls the signal source module 17 to simulate the vehicle control unit to input waveform signals with specific frequency and duty ratio to the logic port of the tested drive module, in the process, the voltage waveform of the output port of the Outage signal of the tested drive module is detected through the data acquisition module 13, and whether the Outage alarm function meets the requirements or not is judged according to the voltage waveform.

It should be noted that, this is merely an exemplary illustration, and in other embodiments, the industrial personal computer may further implement corresponding function detection by sending other test instructions to the programmed power supply, the programmed electronic load, the signal source module, and the tested driver module, which are not specifically listed here.

In the embodiment, the industrial personal computer sends the test instruction to the program-controlled power supply, the program-controlled electronic load, the signal source module and the tested driving module, receives the test feedback information through the communication module, and outputs the test result according to the test feedback information, the test instruction and the analog signal, so that more automatic detection of the car lamp driving module can be realized.

In one embodiment, referring to fig. 1, the automatic detection system for a vehicle lamp driving module may further include: the case 18, the data acquisition module 13, the communication module 14 and the signal source module 17 are all connected with the industrial personal computer 15 through the case 18. The case 18 may be an NI case, the data acquisition module 13, the communication module 14, and the signal source module 17 are all connected to one side of the NI case through internal communication, and the other side of the NI case is connected to a communication bus of the industrial personal computer 15, such as a PCIe bus, and signal transmission is realized through the NI case, so as to reduce the number of connection lines between the industrial personal computer 15 and the data acquisition module 13, the communication module 14, and the signal source module 17.

In one embodiment, referring to fig. 1, the automatic detection system for a vehicle lamp driving module may further include: the program-controlled resistance module 19 is respectively connected with the tested driving module and the industrial personal computer 15 and is used for simulating an external resistance load of the tested driving module under the control of the industrial personal computer 15; the industrial personal computer 15 is also used for sending a test instruction to the program control resistance module 19.

Specifically, the programmable resistance module 19 may be a customized device, and an output end thereof is connected to an external resistance end of the tested driver module, and a control end thereof is connected to the industrial personal computer 15, for simulating an external resistance load of the tested driver module in different configuration environments, such as a BIN & NTC resistor. When the detection system comprises the signal source module 17 and the case 18, the program-controlled resistor module 19 can be connected with the industrial personal computer 15 sequentially through the signal source module 17 and the case 18, so that the wiring length of the equipment is reduced, and the integrated setting is facilitated.

In the process of automatic detection, referring to fig. 2g, the external resistance load of the detected driving module can also be detected. When the tested driving module is in a power-on and activated state, the industrial personal computer 15 controls the program-controlled resistance module 19 to change specific parameters so as to simulate an external resistance load (such as a BIN & NTC resistor) of the tested driving module, and sends a parameter identification instruction to the tested driving module through the communication module 14 so as to control the tested driving module to identify the parameters of the program-controlled resistance of the corresponding port, reversely read the parameters from the tested driving module through the communication module 14, and judge whether the identification accuracy meets the requirements.

Next, referring to fig. 2h, the output current of the driving module under test can be detected. When the tested driving module is in a power-on and activated state, the industrial personal computer 15 controls the programmable resistance module 19 and the programmable electronic load 12 to change specific parameters so as to simulate an external resistance load (such as a BIN & NTC resistor) and an external vehicle lamp load when the tested driving module works, and sends a current output instruction to the tested driving module through the communication module 14 so as to control the tested driving module to carry out current output, and in the process, whether the output current of the tested driving module meets the requirement or not is detected and judged through the current detection module 16 and the data acquisition module 13.

Next, referring to fig. 2i, the start delay of the driving module to be tested may also be detected. When the tested driving module is in a power-on and activated state, the industrial personal computer 15 controls the program-controlled resistance module 19 and the program-controlled electronic load 12 to change specific parameters so as to simulate an external resistance load (such as a BIN & NTC resistor) and an external vehicle lamp load when the tested driving module works, meanwhile, the control signal source module 17 simulates a whole vehicle controller to input a specific starting trigger signal to a logic port of the tested driving module, and in the process, the starting trigger signal input by the logic port is detected and compared by the current detection module 16 and the data acquisition module 13 so as to judge whether the starting delay performance of the tested driving module meets the requirement.

It should be noted that, this is merely an exemplary illustration, and in other embodiments, the industrial personal computer may further implement corresponding function detection by sending other test instructions to the programmed power supply, the programmed electronic load, the signal source module, the programmed resistance module, and the tested driver module, which are not specifically listed here. In addition, the program-controlled resistor module 19 may be multiple, and may be specifically set according to actual requirements, which is not limited here.

In the embodiment, the industrial personal computer sends the test instruction to the program-controlled power supply, the program-controlled electronic load, the signal source module, the program-controlled resistance module and the tested driving module, receives the test feedback information through the communication module, and outputs the test result according to the test feedback information, the test instruction and the analog signal, so that more automatic detection of the car lamp driving module can be realized.

In one embodiment, referring to fig. 1, the automatic detection system for a vehicle lamp driving module may further include: the program control switch module 20 is connected with the tested driving module and the industrial personal computer 15 respectively and used for simulating the working logic of the tested driving module under the control of the industrial personal computer 15; the industrial personal computer 15 is also used for sending a test instruction to the program control switch module 20. Specifically, the programmable switch module 20 may be a customized device, and the output end thereof is connected to the control end of the tested driving module, and the control end is connected to the industrial personal computer 15, so as to implement the functional logic control of the tested driving module, thereby implementing the automatic detection. When the detection system comprises the signal source module 17 and the case 18, the program control switch module 20 can be connected with the industrial personal computer 15 sequentially through the signal source module 17 and the case 18, so that the wiring length of the equipment is reduced, and the integrated setting is facilitated.

In one embodiment, referring to fig. 1, the automatic detection system for a vehicle lamp driving module may further include: and the power load module 21 is connected with the tested driving module and used for simulating an external power load of the tested driving module.

Specifically, the power load module 21 may be a customized device, and an output end of the customized device is connected to an output end of the tested driver module, and is configured to simulate an external power load (such as a fan, a motor, and the like) of the tested driver module.

In the automatic detection, referring to fig. 2j, the low-side switch function of the driving module to be detected can be detected. When the tested driving module is in a power-on and activated state, the low-side switch port of the tested driving module is connected to the power load module 21, the industrial personal computer 15 controls the signal source module 17 to simulate the whole vehicle controller to input waveform signals with specific frequency and duty ratio to the logic port of the tested driving module, in the process, the voltage waveform of the low-side switch port of the tested driving module is detected through the data acquisition module 13, and whether the low-side switch function meets the requirement or not is judged according to the voltage waveform.

It should be noted that, this is merely an exemplary illustration, and in other embodiments, the industrial personal computer may further implement corresponding function detection by sending other test instructions to the programmed power supply, the programmed electronic load, the signal source module, the programmed resistance module, the power load module, and the tested driver module, which are not listed here.

In the embodiment, the industrial personal computer sends the test instruction to the program-controlled power supply, the program-controlled electronic load, the signal source module, the program-controlled resistor module, the power load module and the tested driving module, receives the test feedback information through the communication module, and outputs the test result according to the test feedback information, the test instruction and the analog signal, so that more automatic detection of the car lamp driving module can be realized.

In one embodiment, the industrial personal computer 15 may include: and the human-computer interaction interface is used for receiving the test parameters and displaying the test result. Specifically, the human-computer interaction interface is a development interface, so that a tester can configure various test parameters more accurately and quickly, important parameters of a tested driving module in the detection process can be presented to the tester in an intuitive mode through the development of the test interface, the tester can analyze the test result more conveniently, and the specific interface setting can be set according to actual requirements without limitation.

In one embodiment, the industrial personal computer 15 may further include: and the memory is used for storing the test parameters and the test results. For example, in the automatic detection process, test related data are recorded in real time and stored and managed in a table form, so that the content is more sufficient, the maintenance is simpler and more convenient, and the data analysis is convenient to perform at the later stage.

In one embodiment, referring to fig. 1, the automatic detection system for a vehicle lamp driving module may further include: and the cabinet control module 22 is used for supplying power, safety management and switch control to the automatic detection system. The cabinet control module 22 may be a custom device including a cabinet main power switch, a short-circuit protection switch, an emergency stop switch, and the like, through which power supply, safety management, and switch control of the detection system are realized.

As a specific example, referring to fig. 1, the automatic detection system for a vehicle lamp driving module includes two major parts, namely hardware and software, where the hardware includes a programmable power supply 11, a programmable electronic load 12, a data acquisition module 13, a communication module 14, an industrial personal computer 15, a current acquisition module 16, a signal source module 17, a programmable resistance module 19, a programmable switch module 20, a power load module 21, and a cabinet control module 22, and the software may include hardware device driving, automatic detection, automatic evaluation, a human-computer interaction interface, and data recording, storage, and management functions. Based on the automatic detection system, referring to fig. 3, the automatic detection process of the detected driving module may include the following steps:

step S301, waiting for a detection starting instruction sent by the production line central control.

In step S302, it is determined whether a start detection instruction is received. If yes, go to step S303; otherwise, return to step S301.

Step S303, relevant detection parameters are obtained from the production line database.

Step S304, updating the configuration of each device in the detection system.

In step S305, each device is initialized.

Step S306, judging whether the equipment is detected to be abnormal or receiving an equipment emergency stop instruction. If yes, go to step S311; otherwise, step S307 is executed.

Step S307, updating the equipment state to the production line central control.

Step S308, a test step is performed. The testing steps may include the testing steps corresponding to fig. 2a to fig. 2j, and the testing is performed on the drawings first, that is, the testing sequence may be set according to actual requirements, which is not limited herein.

Step S309, determine whether an apparatus anomaly is received or an apparatus emergency stop instruction is received. If yes, go to step S311; otherwise, step S310 is performed.

Step S310, judging whether there is a residual detection step. If yes, returning to the step S308; otherwise, step S311 is performed.

Step S311, sending the test result and the test data to the production line database.

Step S312, updating the equipment state to the production line central control, returning to step S301, and waiting for the next test.

In this application, the used test equipment of whole testing process is managed and controlled by industrial computer unification, cooperates the operation according to the procedure that sets up in advance, accomplishes whole detection flow. Originally whole complicated test that needs manual operation, now only need simple setting back can whole automatic operation, and can guarantee the uniformity of repeated test, when reducing the human cost greatly, also can reduce because the risk of the experimental inefficacy that the human maloperation leads to, improved efficiency of software testing and equipment resource utilization by a wide margin for it is more intelligent to detect. Meanwhile, the integration of various testing devices is beneficial to shortening the length of system wiring, reducing voltage drop between wires, and no repeated connection device is needed, so that the possibility of error in test construction can be reduced, the test maintenance is convenient, and meanwhile, the space of the construction device can be reduced, so that the construction is safer, tidier and more attractive. In addition, a plurality of program-controlled power supplies can be used to be matched with the multi-channel data acquisition module, so that simultaneous detection of a plurality of detected driving modules (such as 8) can be realized, the detection throughput is greatly improved, and the automatic detection batch is realized.

To sum up, the automatic detection system of car light drive module of this application through with multiple customization and standard test equipment integration to combine hardware device drive and automated inspection procedure, realize the development of automated inspection such as buildding, detection, analysis and judging, can simplify the manual operation in the testing process greatly, improve detection efficiency, also greatly improved the uniformity and the accuracy of test simultaneously.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within 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 represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides an automatic detecting system of car light drive module which characterized in that includes: the programmable power supply, the programmable electronic load, the data acquisition module, the communication module and the industrial personal computer are all connected with the tested driving module and the industrial personal computer,

the programmable power supply is used for supplying power to the tested driving module under the control of the industrial personal computer;

the program-controlled electronic load is used for simulating an external vehicle lamp load of the tested driving module under the control of the industrial personal computer;

the data acquisition module is used for acquiring voltage and current analog signals of the tested driving module;

the industrial personal computer is used for sending a test instruction to the program-controlled power supply, the program-controlled electronic load and the tested driving module through the communication module, receiving test feedback information through the communication module, and outputting a test result according to the test feedback information, the test instruction and the analog signal.

2. The automated vehicle light driving module detection system according to claim 1, further comprising: and the current detection module is respectively connected with the tested driving module and the data acquisition module and is used for detecting the current analog signal of the tested driving module.

3. The automated vehicle light driving module detection system according to claim 1, further comprising: the signal source module is respectively connected with the tested driving module and the industrial personal computer and used for simulating a control signal of the whole vehicle controller received by the tested driving module under the control of the industrial personal computer; the industrial personal computer is further used for sending a test instruction to the signal source module.

4. The automated vehicle light driving module detection system of claim 3, further comprising: and the data acquisition module, the communication module and the signal source module are connected with the industrial personal computer through the case.

5. The automated vehicle light driving module detection system according to claim 1, further comprising: the program-controlled resistance module is respectively connected with the tested driving module and the industrial personal computer and is used for simulating an external resistance load of the tested driving module under the control of the industrial personal computer; the industrial personal computer is further used for sending a test instruction to the program control resistance module.

6. The automated vehicle light driving module detection system according to claim 1, further comprising: the program-controlled switch module is respectively connected with the tested driving module and the industrial personal computer and is used for simulating the working logic of the tested driving module under the control of the industrial personal computer; the industrial personal computer is further used for sending a test instruction to the program control switch module.

7. The automated vehicle light driving module detection system according to claim 1, further comprising: and the power load module is connected with the tested driving module and used for simulating the external power load of the tested driving module.

8. The automatic detection system of car light drive module of claim 1, characterized in that, the industrial computer includes: and the human-computer interaction interface is used for receiving the test parameters and displaying the test result.

9. The automated detection system of claim 8, wherein the industrial personal computer further comprises: a memory for storing the test parameters and the test results.

10. The automated vehicle light drive module detection system according to any one of claims 1-9, further comprising: and the cabinet control module is used for supplying power, managing safety and controlling on and off of the automatic detection system.

Images