CN110853031B - Exclusive detection method for lightening of indicator light of automobile combined instrument - Google Patents
Exclusive detection method for lightening of indicator light of automobile combined instrument Download PDFInfo
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- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/44—Testing lamps
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
- G06T7/001—Industrial image inspection using an image reference approach
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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- G06T2207/30108—Industrial image inspection
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Abstract
An exclusive detection method for lightening an indicator light of an automobile combined instrument belongs to the technical field of automobile instrument monitoring. The invention aims to solve the problem that the quality of a product is influenced because the detection omission easily occurs when the working state of the indicator lamp on the existing automobile instrument is detected in a manual visual inspection mode. The method comprises the following steps: judging whether the current indicator lamp to be detected is in a normal lighting state or not in a positioning and picking mode; under the condition that the current indicator lamp to be detected is normally lightened, further judging whether other non-current indicator lamps except the current indicator lamp to be detected on the automobile instrument are in a dark state or not, and if so, judging that the current indicator lamp to be detected is normal; otherwise, a fault is prompted. The invention can realize exclusive detection of the lighting of the automobile instrument indicating lamp.
Description
Technical Field
The invention relates to an exclusive detection method for lightening an indicator light of an automobile combined instrument, belonging to the technical field of automobile instrument monitoring.
Background
In the automobile combination instrument industry, the indicator light has an extremely important function because the indicator light is a direct display item. Under normal conditions, the combination instrument indicates the running state of corresponding equipment through a plurality of indicator lamps, if a certain indicator lamp breaks down, the combination instrument cannot normally indicate the state of the corresponding equipment, and the combination instrument can also influence the running; therefore, the method and the device for detecting the indicator lamps in the automobile instrument production ensure that all the indicator lamps are in a normal working state, and can give out warning signals when a certain indicator lamp fails, and the method and the device are very important work.
At present, the operation detection mode of the automobile instrument indicating lamp on the production line is simple detection such as manual visual inspection, and when the condition that a plurality of indicating lamps are simultaneously lightened occurs on the instrument, the current fault indicating lamp (namely, the indicating lamp which is not lightened at present and is required to be lightened) is easily missed to detect. On one hand, the occurrence of the situation can cause that the finished instrument product is unqualified and becomes a three-pack product, thereby causing certain economic loss; on the other hand, if the meter is put into use, the user experience is poor. Therefore, it is important to exclusively detect the lighting of the indicator lamp of the automobile meter to be shipped from factory.
Disclosure of Invention
The invention provides an exclusive detection method for lightening an indicator lamp of an automobile combined instrument, aiming at the problem that the quality of a product is influenced because the indicator lamp on the existing automobile instrument is easily missed by detecting the working state in a manual visual inspection mode.
The invention discloses an exclusive detection method for lightening an indicator light of an automobile combined instrument, which comprises the following steps:
judging whether the current indicator lamp to be detected is in a normal lighting state or not in a positioning and picking mode; under the condition that the current indicator lamp to be detected is normally lightened, further judging whether other non-current indicator lamps except the current indicator lamp to be detected on the automobile instrument are in a dark state or not, if so, judging that the current indicator lamp to be detected is normal; otherwise, a fault is prompted.
According to the exclusive detection method of the lighting of the indicator lamp of the automobile combination meter,
the method for judging whether the current indicator lamp to be detected is in a normal lighting state in a positioning and picking mode comprises the following steps:
continuously photographing the automobile instrument to be detected by using a camera to obtain a sequential instrument indicator lamp image with a time mark;
configuring all indicator lamp position templates, and calibrating the real position of each indicator lamp on the templates;
simultaneously configuring lighting time sequence tables of all the indicator lamps;
determining the position of the current indicator lamp to be detected according to all indicator lamp position templates;
according to the lighting time sequence table, positioning and picking up the current indicator lamp image unit to be detected on the corresponding instrument indicator lamp image;
and comparing the current to-be-detected indicator lamp image unit with the area of the current to-be-detected indicator lamp on the indicator lamp position template, and determining whether the current to-be-detected indicator lamp is normal or not.
According to the exclusive detection method for lighting the indicator lamp of the automobile combined instrument, the specific method for comparing the area of the current indicator lamp to be detected on the current indicator lamp image unit to be detected and the area of the current indicator lamp to be detected on the indicator lamp position template comprises the following steps:
calculating the area of the current indicator lamp image unit to be detected, and setting A; setting the area of the current indicator lamp to be detected on the indicator lamp position template as B;
if the absolute value of the difference value between the A and the B is smaller than the preset area threshold value, judging that the current indicator lamp to be detected is normal; otherwise, prompting the current fault of the indicator lamp to be detected.
According to the exclusive detection method for lighting the indicator lamp of the automobile combination instrument, the specific method for judging whether other non-current indicator lamps except the indicator lamp to be detected on the automobile instrument are in a dark state comprises the following steps:
preprocessing the corresponding instrument indicator light image to remove known interference items; obtaining an indicator lamp image to be judged;
configuring a calibration image of the instrument indicating lamp in a normal lighting state of each indicating lamp;
and matching the indicator lamp image to be judged with the corresponding instrument indicator lamp calibration image, and judging that other non-current indicator lamps are in a dark state when the coincidence degree of the indicator lamp image and the corresponding instrument indicator lamp calibration image reaches a preset matching threshold value.
According to the exclusive detection method for the lighting of the automobile combination instrument indicator lamp, the instrument indicator lamp calibration image comprises the following steps:
and each current indicator lamp to be detected is an automobile instrument image which is lighted, and other non-current indicator lamps are in a dark state.
According to the exclusive detection method for lighting the indicator lights of the automobile combination instrument, whether other non-current indicator lights except the indicator light to be detected on the automobile instrument are in a dark state or not is judged, and when the judgment result is negative, fault detection is carried out, wherein the fault detection comprises the following steps:
carrying out fault detection on the current indicator lamp to be detected; and detecting faults of the lighted indicator lamps in other non-current indicator lamps.
The invention has the beneficial effects that: the invention judges the states of the current indicator lamp to be detected and other non-current indicator lamps simultaneously in an image processing mode, thereby ensuring that the state of the current indicator lamp to be detected is normal under the condition that both conditions are met. The invention realizes exclusive detection of other indicator lamps under the condition that the indicator lamp to be detected is normally lighted at present, and ensures the reliability of the detection result of the indicator lamp of the automobile instrument, thereby avoiding the economic loss caused by unqualified products; and ensures that the user obtains excellent experience effect in use.
According to the method, through successive detection of the two steps, even if other indicator lamps are simultaneously lightened, the condition that the state of the indicator lamp to be detected is not missed to be detected is avoided, and compared with manual detection, the detection efficiency is improved, and the accuracy of a detection result is also improved; meanwhile, the product quality is also improved.
The method can avoid missing detection caused by the simultaneous lighting of a plurality of indicator lamps, thereby avoiding loss and facilitating the product quality tracing.
Drawings
FIG. 1 is a flow chart of an exclusive detection method of the present invention for the illumination of the indicator lights of the combination automobile meter;
fig. 2 is a flowchart for determining whether the indicator light to be detected is in a normal lighting state in a positioning and picking manner.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
In a first embodiment, with reference to fig. 1, the present invention provides an exclusive detection method for lighting an indicator light of an automobile combination meter, including:
judging whether the current indicator lamp to be detected is in a normal lighting state or not in a positioning and picking mode; under the condition that the current indicator lamp to be detected is normally lightened, further judging whether other non-current indicator lamps except the current indicator lamp to be detected on the automobile instrument are in a dark state or not, and if so, judging that the current indicator lamp to be detected is normal; otherwise, a fault is prompted.
This embodiment realizes detecting the exclusive that the current pilot lamp that awaits measuring of automobile combination meter was lighted through two steps, has guaranteed that each pilot lamp just lights under the condition of setting for lighting to the quality control to automobile instrument pilot lamp has been realized.
For example, suppose that there are three rows and three columns of indicator lights on the automobile instrument, taking the first column of indicator light in the first row as the indicator light to be detected currently, only one of the indicator lights is turned on at this time, and the other 8 indicator lights are all in the off state, and the current state is determined to be qualified.
The faults that may occur in this embodiment include two states: one is that when the indicator lamp to be detected is turned on at present, other indicator lamps are also turned on, and the fault state can be determined by further judgment under the condition. And the other one is that the current indicator lamp to be detected is not lighted, and the situation directly judges that the current indicator lamp to be detected has a fault, so that the detection of the second step can not be continued.
Further, referring to fig. 2, the method for determining whether the current indicator lamp to be detected is in a normal lighting state in a positioning and picking manner includes:
continuously photographing the automobile instrument to be detected by using a camera to obtain a sequential instrument indicator lamp image with a time mark;
configuring all indicator lamp position templates, and calibrating the real position of each indicator lamp on the templates;
simultaneously configuring lighting time sequence tables of all the indicator lamps;
determining the position of the current indicator lamp to be detected according to all indicator lamp position templates;
according to the lighting time sequence table, positioning and picking up the current indicator lamp image unit to be detected on the corresponding instrument indicator lamp image;
and comparing the current to-be-detected indicator lamp image unit with the area of the current to-be-detected indicator lamp on the indicator lamp position template, and determining whether the current to-be-detected indicator lamp is normal or not.
The instrument indicator light images in this embodiment can be acquired by various high definition cameras. The real position of each indicator light on the indicator light position template is used as a basis for positioning and picking; and lighting the time sequence table as a basis for selecting the image of the instrument indicating lamp at the current moment. The positioning and picking of the current indicator lamp image unit to be detected comprises the interception of a region with brightness meeting a preset brightness threshold value, namely, the area range of the region with certain brightness is used as the judgment basis of the current indicator lamp state to be detected.
Still further, with reference to fig. 2, the specific method for comparing the area of the current indicator light to be detected on the current indicator light image unit to be detected and the indicator light position template includes:
calculating the area of the current indicator lamp image unit to be detected, and setting A; setting the area of the current indicator lamp to be detected on the indicator lamp position template as B;
if the absolute value of the difference value between the A and the B is smaller than the preset area threshold value, judging that the current indicator lamp to be detected is normal; otherwise, prompting the current fault of the indicator lamp to be detected. When the absolute value A-B is less than C, namely the deviation of the absolute value A-B is not more than C, judging that the current state of the indicator lamp to be detected is normal, and judging that the current automobile instrument is qualified after all the indicator lamps pass the detection. And C is a preset area threshold value.
The present embodiment further defines a method for area comparison, and the preset area threshold may be set according to experimental measurement or empirical value. The size of the area a should be equivalent to the brightness area of the corresponding indicator light on the indicator light position template under the condition that only the indicator light to be detected is lighted currently. If the indicator lights are simultaneously lighted around the indicator light to be detected, the pick-up area of the image unit of the indicator light to be detected is affected, that is, the difference between the A and the B exceeds the normal range. Therefore, the present embodiment can obtain an accurate determination result.
Still further, the specific method for judging whether other non-current indicator lamps except the current indicator lamp to be detected on the automobile instrument are in a dark state includes:
preprocessing the corresponding instrument indicating lamp image to remove known interference items; obtaining an indicator light image to be judged;
configuring a calibration image of the instrument indicating lamp in a normal lighting state of each indicating lamp;
and matching the indicator lamp image to be judged with the corresponding instrument indicator lamp calibration image, and judging that other non-current indicator lamps are in a dark state when the coincidence degree of the indicator lamp image and the corresponding instrument indicator lamp calibration image reaches a preset matching threshold value.
Whether other non-current indicator lamps are lightened or not can be judged in an image processing mode. The instrument light image needs to be preprocessed to remove some significant distractors before it can be used for diagnostic purposes.
Still further, the meter indicator lamp calibration image includes:
and each current indicator lamp to be detected is an automobile instrument image which is lighted, and other non-current indicator lamps are in a dark state.
In the present embodiment, a calibration image corresponding to a case where each indicator lamp is turned on and the other indicator lamps are not turned on is arranged on the automobile instrument. That is, in the above-mentioned example of nine indicator lights, the gauge image of the meter indicator light includes nine indicator lights. The similarity between the indicator light image to be judged and the corresponding calibration image can be judged. The determination may be made by other suitable image processing means.
Still further, whether other non-current indicator lamps except the current indicator lamp to be detected on the automobile instrument are in a dark state or not is judged, and when the judgment result is negative, the fault detection comprises the following steps:
carrying out fault detection on the current indicator lamp to be detected; and detecting faults of the lighted indicator lamps in other non-current indicator lamps.
When the current indicator lamp to be detected determines the fault, the judging program can be directly ended, and the fault is processed. And under the condition that the current indicator lamp to be detected is normal, if other indicator lamps are judged to be lighted, the comprehensive detection of the automobile instrument is required to be carried out so as to eliminate the fault.
In conclusion, the method can realize the detection of the automobile instrument indicating lamp. The intelligent camera is used for capturing the automobile instrument image, and after the automobile instrument image is compared with the template image, when the current indicator lamp is automatically judged to be turned on, whether other indicator lamps are turned on or not is judged, so that unqualified products are prevented from leaving a factory, and the product quality is improved.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (3)
1. An exclusive detection method for lighting of an indicator light of an automobile combination instrument is characterized by comprising the following steps:
judging whether the current indicator lamp to be detected is in a normal lighting state or not in a positioning and picking mode; under the condition that the current indicator lamp to be detected is normally lightened, further judging whether other non-current indicator lamps except the current indicator lamp to be detected on the automobile instrument are in a dark state or not, if so, judging that the current indicator lamp to be detected is normal; otherwise, prompting a fault;
the method for judging whether the current indicator lamp to be detected is in a normal lighting state or not in a positioning and picking mode comprises the following steps:
continuously photographing the automobile instrument to be detected by using a camera to obtain a sequential instrument indicator lamp image with a time mark;
configuring all indicator lamp position templates, and calibrating the real position of each indicator lamp on the templates;
simultaneously configuring lighting time sequence tables of all the indicator lamps;
determining the position of the current indicator lamp to be detected according to all indicator lamp position templates;
according to the lighting time sequence table, positioning and picking up the current indicator lamp image unit to be detected on the corresponding instrument indicator lamp image;
comparing the current to-be-detected indicator lamp image unit with the area of the current to-be-detected indicator lamp on the indicator lamp position template, and determining whether the state of the current to-be-detected indicator lamp is normal or not;
the specific method for comparing the area of the current indicator lamp to be detected on the current indicator lamp image unit to be detected and the area of the current indicator lamp to be detected on the indicator lamp position template comprises the following steps:
calculating the area of the current indicator lamp image unit to be detected, and setting A; setting the area of the current indicator lamp to be detected on the indicator lamp position template as B;
if the absolute value of the difference value between the A and the B is smaller than the preset area threshold value, judging that the current indicator lamp to be detected is normal; otherwise, prompting the current fault of the indicator lamp to be detected;
the specific method for judging whether other non-current indicator lamps except the current indicator lamp to be detected on the automobile instrument are in a dark state comprises the following steps:
preprocessing the corresponding instrument indicator light image to remove known interference items; obtaining an indicator light image to be judged;
configuring a calibration image of the instrument indicating lamp in a normal lighting state of each indicating lamp;
and matching the indicator lamp image to be judged with the corresponding instrument indicator lamp calibration image, and judging that other non-current indicator lamps are in a dark state when the coincidence degree of the indicator lamp image and the corresponding instrument indicator lamp calibration image reaches a preset matching threshold value.
2. The exclusive detection method of the lighting of an indicator lamp of an automobile combination meter according to claim 1,
the meter indicator lamp calibration image includes:
and each current indicator lamp to be detected is an automobile instrument image which is lighted, and other non-current indicator lamps are in a dark state.
3. The exclusive detection method of the lighting of an indicator lamp of an automobile combination meter according to claim 2,
judging whether other non-current indicating lamps except the current indicating lamp to be detected on the automobile instrument are in a dark state, and when the judgment result is no, performing fault detection, wherein the fault detection comprises the following steps:
carrying out fault detection on the current indicator lamp to be detected; and detecting faults of the lighted indicator lamps in other non-current indicator lamps.
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| CN112053340B (en) * | 2020-08-28 | 2023-03-14 | 安徽江淮汽车集团股份有限公司 | Performance test method, equipment, storage medium and device of automobile display equipment |
| CN113325299A (en) * | 2021-05-27 | 2021-08-31 | 山东英信计算机技术有限公司 | Quality inspection method for PCBA (printed circuit board assembly) and related components thereof |
| CN114062961B (en) * | 2021-11-17 | 2023-08-08 | 吉林大学 | OCC-based multi-feature demodulation method for automatic driving vehicle |
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