WO2006057363A1 - 車両用灯体検査装置および検査方法 - Google Patents
車両用灯体検査装置および検査方法 Download PDFInfo
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- WO2006057363A1 WO2006057363A1 PCT/JP2005/021732 JP2005021732W WO2006057363A1 WO 2006057363 A1 WO2006057363 A1 WO 2006057363A1 JP 2005021732 W JP2005021732 W JP 2005021732W WO 2006057363 A1 WO2006057363 A1 WO 2006057363A1
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- Prior art keywords
- lamp
- vehicle
- inspection
- window
- image data
- Prior art date
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- 238000007689 inspection Methods 0.000 title claims abstract description 296
- 238000000034 method Methods 0.000 title claims description 108
- 238000012545 processing Methods 0.000 claims abstract description 59
- 238000003384 imaging method Methods 0.000 claims abstract description 48
- 238000012790 confirmation Methods 0.000 claims description 71
- 230000008569 process Effects 0.000 claims description 44
- 230000004397 blinking Effects 0.000 claims description 17
- 230000008859 change Effects 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 6
- 230000004913 activation Effects 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 13
- 238000001514 detection method Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000005286 illumination Methods 0.000 description 7
- 238000012937 correction Methods 0.000 description 6
- 238000003708 edge detection Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 241000976924 Inca Species 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/06—Testing the alignment of vehicle headlight devices
- G01M11/064—Testing the alignment of vehicle headlight devices by using camera or other imaging system for the light analysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/06—Testing the alignment of vehicle headlight devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/06—Testing the alignment of vehicle headlight devices
- G01M11/067—Details of the vehicle positioning system, e.g. by using a laser
Definitions
- the present invention relates to a vehicular lamp inspection apparatus and an inspection method for inspecting lighting states and blinking states of various lamps in an inspection line after vehicle assembly.
- a lamp unit of a vehicle incorporates a no-beam, an i-beam lamp, a low-beam lamp, and a small lamp, and the lamps are arranged at very close positions.
- light may be diffused somewhat in the front lens portion, and a reflector provided behind the light source may reflect the light of each lamp in common. Therefore, it is difficult to determine the power of which lamp is lit when performing these lamp lighting tests. An inspection method that can reliably perform the inspection is desired.
- image data obtained by imaging a vehicle may include a plurality of lamps, and it takes a long processing time to perform image processing on the entire screen of such image data. Therefore, if there are multiple inspection locations on the image data, the inspection window is set for each inspection location to limit the processing range and reduce the amount of computation and improve the inspection accuracy. Good.
- the camera when the camera is disposed opposite to the headlamp as in the above-mentioned JP-A-8-15093, the camera can be used for both vehicle position detection and headlamp inspection. it can.
- image data obtained by imaging a vehicle may include a plurality of lamps, and it takes a long time to perform image processing on the entire screen of such image data. Therefore, when there are multiple inspection locations on the image data, the inspection window is set for each inspection location to limit the processing range and reduce the amount of computation and improve the inspection accuracy. Good.
- a plurality of lamps other than the headlamp are used.
- the inspection window set in various lamps will be displaced in the vertical direction, and the inspected lamp may protrude from the inspection window.
- the present invention provides an automatic vehicle inspection apparatus capable of automating the inspection of the lighting state and blinking state of a vehicle lamp, preventing an artificial inspection error, and enabling a quick inspection. aimed to.
- an object of the present invention is to provide a vehicular lamp inspection method capable of distinguishing and inspecting lamp bodies of a lamp unit with a simple device and procedure.
- the present invention makes it possible to use the image sensor for both vehicle position detection and lamp inspection, and to detect the position of the vehicle with high accuracy and to inspect the lamp more reliably.
- the purpose is to provide a vehicle lamp inspection method.
- a vehicular lamp inspection device is connected to a vehicle position recognition unit that detects that a vehicle has reached a specified inspection position, and an electronic controller mounted on the vehicle, A terminal that lights or blinks the lamp by transmitting an operation signal to the controller, an image sensor that images the lamp of the vehicle that has reached the inspection position, the vehicle position recognition unit, and the terminal And an inspection unit that acquires image data from the imaging device, and the inspection unit detects that the vehicle has reached the inspection position based on a signal from the vehicle position recognition unit.
- the lamp is turned on or blinked via the terminal and the electronic controller, and the image sensor power image data is acquired, and the lamp is inspected based on the image data.
- connection between the inspection unit, the vehicle position recognition unit, the terminal, and the image sensor may be either wired or wireless.
- the lamp is automatically turned on or blinked via the terminal and the electronic controller.
- the image sensor By imaging the lamp with the image sensor, it is possible to automate the inspection of the lamp, and it is possible to prevent human inspection errors and to perform a quick inspection.
- the lamp body is a headlamp, a wing force, and other lamp forces
- the inspection unit includes a lighting inspection process for the headlamp, a blinking inspection process for the WIN force
- the other lamp lighting inspection processes may be inspected based on different image data.
- the different image data is image data having different imaging ranges taken by different cameras when the imaging time is different or a plurality of cameras are provided. By doing so, it is possible to perform an accurate inspection in which the high-intensity light emitted from the headlamp does not affect the image data used in the inspection of the Winning force and other low-intensity lamps.
- the image sensor is provided at a left and right position outside the vehicle width in front of the front end portion of the vehicle that has reached the inspection position, and a left and right position outside the vehicle width behind the rear end portion, respectively. Also good. As a result, the entire circumference of the vehicle that has reached the specified position can be imaged with four cameras, eliminating the need for a dedicated camera for imaging the side. Further, by providing the camera outside the vehicle width, the vehicle can pass between the left and right cameras, which is suitable for so-called line detection.
- a vehicle lamp inspection method is a vehicle lamp inspection method in which a lamp of a vehicle is inspected by an inspection unit connected to an image sensor and a terminal having a communication function.
- an operation signal is sent to the electronic controller via the terminal.
- the lamp of the vehicle is turned on or blinked, the image of the lamp is captured by the image sensor, and image data is acquired, and image processing is performed based on the image data. It is characterized by performing the inspection.
- the image data is captured so as to include the side of the lamp body and wheels of the vehicle, and a long wheel position confirmation window is displayed on the image data. And setting the inspection window to a reference position at a position crossing the edge of the side surface of the wheel laterally, and scanning the wheel position confirmation window in the longitudinal direction to change the brightness.
- the operating state of the lamp may be inspected by a step of correcting the movement to the position and a step of obtaining the luminance in the inspection window corrected for the movement.
- the edge of the wheel is detected by scanning the lamp inspection window set at a position crossing the wheel, and the positional relationship between the lamp of the vehicle and the image sensor can be detected appropriately. it can. Accordingly, the offset amount force inspection window, which is the difference between the wheel edge and the wheel reference position, can be corrected to move to the position where the lamp is included, and the lamp can be inspected simply and quickly. In addition, a simple and inexpensive apparatus can be used without using a complicated and expensive vehicle positioning mechanism.
- the illumination unit illuminates the wheel, so that clear and clear image data can be acquired, and the edge of the wheel is accurately detected. be able to.
- the imaging is performed so that the image data includes a lamp body of the vehicle, and the vehicle type is acquired, and the vehicle is obtained from the model and the image data.
- Detecting a stop position a step of setting an inspection window on the image data based on the type and the detected stop position to a position including the lamp, and a luminance in the inspection window. It may have a step to seek.
- a simple and inexpensive apparatus can be used without using a vehicle positioning mechanism or the like. Also, by setting the inspection window at the position where the lamp is included based on the acquired model and the detected stop position, it is possible to cope with the difference in vehicle model on the image data. The inspection can be performed easily and quickly, and the versatility of the force is improved.
- a plurality of the lamps are provided in the lamp unit, and the image data includes the lamp unit in a state where at least one of the lamps is turned on when imaging is performed by the imaging device. And setting an inspection window including the image of the lamp unit on the image data, and performing a binarization process for dividing the inspection window on the image data by a predetermined brightness threshold value;
- the method may include a step of obtaining an area of a portion showing one of the binarized values in the inspection window and a step of inspecting an operating state of the lamp based on the area.
- the binary image processing is performed on the image data in a state where the lamp is lit with a predetermined luminance threshold value,
- the operating state of the lamp can be easily inspected based on the area.
- a screen or camera diaphragm mechanism is not required, and a simple and small device can be used.
- the process may be performed based on the area ratio between the area of the portion that becomes bright due to light emission from the lamp and exceeds the predetermined luminance threshold and the total area of the inspection window.
- an acceptable range of the area corresponding to the type of the lamp is set, and based on the acceptable range, the operating state for each type of the lamp is inspected, whereby the lamp is individually Can be inspected.
- the body position confirmation window is set to a position that intersects the body edge in the vertical direction based on the side edge of the wheel, and scanning allows the body height at that position to be accurately determined. it can.
- the position of the vehicle can be detected with high accuracy from the obtained height and other predetermined parameters, and the lamp can be reliably detected.
- the image sensor can be used for both vehicle position detection and lamp inspection, and the apparatus to be used can be configured at low cost. Further, the present invention can also be applied to vehicles having different lengths.
- the seventh step includes a sub-step of setting the inspection window to a reference position, and the movement correction of the inspection window to a position including the lamp body based on the vehicle height or the inclination.
- Sub-steps, and determining the brightness in the inspection window, which has been corrected for movement, ensures that the inspected lamp is included in the inspection window, and the operation state of the lamp is more reliably inspected. can do.
- the wheel position confirmation window is set to a position that intersects the side edges of the tire in the wheel in a lateral direction
- the wheel position confirmation window is set.
- the longitudinal direction to detect both side edges from the change in luminance and in the fourth step, the tires recorded in advance on the longitudinal line passing through the center points of the detected both side edges.
- the body position confirmation window may be set at a position based on the diameter of the body.
- the body position confirmation window can be set to a position including the edge of the wheel nose by a simple procedure. Since the upper end of the wheel nose is substantially horizontal, edge detection can be performed easily and reliably by scanning in the vertical direction. In addition, it is possible to detect the upper end of the wheel by scanning the body position confirmation window. Since the height of the wheel is known, the height of the upper end of the wheel and the mouse can be accurately specified based on this height.
- the gap between the wheel and the wheel house is easy to measure because the upper end portion is most widened.
- FIG. 1 is a schematic plan view of a vehicular lamp inspection device according to the present embodiment.
- FIG. 2 is a perspective view showing a vehicle position recognition unit, a vehicle, and a camera provided on a runway.
- FIG. 3 is a perspective view of the terminal.
- FIG. 4 is a schematic connection diagram of a terminal, an ECU, and its peripheral circuits.
- FIG. 5 is a block configuration diagram of a main processing unit.
- FIG. 6 is a side view showing the position of the camera with respect to the vehicle.
- FIG. 7 is a diagram showing image data obtained by imaging the right front portion of the vehicle.
- FIG. 8 is a diagram showing image data obtained by imaging the right rear portion of the vehicle.
- FIG. 9 is a flowchart showing an inspection procedure in a lamp inspection process.
- FIG. 10 is a flowchart showing a procedure for detecting a front wheel edge and a wheel noise edge.
- FIG. 11 is a partially enlarged view of image data obtained by imaging the right front portion of the vehicle when detecting an edge.
- FIG. 12 is a flowchart showing a procedure for inspecting the Win force based on the window.
- FIG. 13 is a flowchart showing a procedure for inspecting a high beam headlamp, a low beam headlamp, and a front small lamp.
- FIG. 14A is a diagram showing a front lamp confirmation window in which the front small lamp is lit
- FIG. 14B is a diagram showing a front lamp confirmation window in which the low beam head lamp is lit
- FIG. 14C is a diagram showing a front lamp confirmation window in a state where the high beam headlamp is lit.
- FIG. 15 is a flowchart showing a procedure for performing a flashing test of the front win force.
- the left and right number codes are attached to the left and right number codes by means of a mechanism in which the vehicle lamp inspection device 10 and the vehicle 14 are provided with one V and one left and right, respectively. The description will be made by distinguishing them with “R”.
- the vehicle lamp inspection apparatus 10 is an apparatus that inspects various lamps of a vehicle 14 that has been driven by an inspector and entered the runway 12.
- the vehicle position recognition unit 16 that detects that the vehicle 14 has reached the specified inspection position and stopped, the terminal 20 connected to the ECU (Electric Control Unit) 18 mounted on the vehicle 14, and the inspection position Spotlights that illuminate the camera body (L) 22L, 22R that also captures the left and right forward force of the vehicle 14 that has reached and the left and right rear wheels 24L and 24R, and the left and right front wheels (wheels) 26L, 26R Part) 28L, 28R and left and right rear wheels (wheels) 30L, 30R It has fluorescent lamps (illumination units) 32L and 32R.
- these cameras 22L, 22R, 24L and 24R include a CD (Hardge Oupled Devices) or CMOs (Complementary Metal Oxide Semiconductor) camera.
- the vehicle 14 is provided with a removable ID tag 34 for inspection, and in the first stage of a series of inspection processes, the model code of the vehicle 14 (including vehicle type information, destination information, etc.), The identification number code 34 and information for identifying the terminal 20 are written in the ID tag 34.
- the lighting around the vehicular lamp inspection apparatus 10 is turned off, and the dark spotlights 28L, 28R and fluorescent lamps 32L, 32R are used to change the front wheels 26L, 26R, rear wheels 30L, 30R, and body 36.
- the edge of (see Fig. 7) is illuminated with a clear contrast.
- the periphery is dark, the light emission of each lamp is clearly imaged, enabling reliable inspection.
- the vehicle position recognition unit 16 includes two wheel stops 38 provided so as to cross the runway 12 at substantially the same intervals as the ground contact surface widths of the front wheels 26L, 26R, and the wheels. It has two photoelectric switches 40L and 40R that detect the front wheels 26L and 26R that got on the stop 38.
- the sensor for detecting that the front wheels 26L and 26R have got on the wheel stops 38 may be, for example, a load cell type.
- the vehicular lamp inspection device 10 can be applied to various types of vehicles 14, and the front wheels 26L and 26R of each vehicle 14 are defined by wheel stops 38 in the vehicle length direction position, and the rear The wheels 30L and 30R are arranged at positions corresponding to the wheel base with respect to the wheel stopper 38. Since the fluorescent lamps 32L and 32R that illuminate the rear part of the vehicle 14 are long, the rear wheels 30L and 30R can be appropriately illuminated regardless of the size of the wheel base.
- the vehicular lamp inspection device 10 is connected to the photoelectric switches 40L and 40R and the terminal 20, and also acquires a main processing unit (inspection unit) 44 that acquires image data from the cameras 22L, 22R, 24L, and 24R.
- a main processing unit (inspection unit) 44 that acquires image data from the cameras 22L, 22R, 24L, and 24R.
- the connection between the vehicle lamp inspection device 10 and the terminal 20 is a wireless connection.
- the terminal 20 is a flat portable type, and includes a monitor 20a, an operation unit 20b, a connector 20c connected to the ECU 18, a barcode 20d as an identification code, A built-in antenna (not shown) for wireless communication with the processing unit 44 is included.
- the terminal 20 is loaded with data such as an inspection sequence corresponding to the vehicle 14 from a predetermined server in advance. This loading operation is performed at the start of each work, for example, to meet the production plan for the day. Flexible response is possible.
- the information on the terminal 20 recorded in the barcode 20d is read by an inspector with a predetermined reader and written in the ID tag 34.
- the terminal 20 is connected to the ECU 18, and the operation signal is transmitted from the main processing unit 44 to the terminal 20 to cause the ECU 18 to perform various operations. Mutation is possible.
- the lamp can be turned on or blinked by transmitting an operation signal to the ECU 18.
- Emission is terminated by stopping the supply of the operation signal from the main processing unit 44 or disconnecting the terminal 20 and the ECU 18, the ECU 18 returns to the normal mode, and the signal supplied from the operation switches 45 is changed. Based on this, the operation target is controlled.
- the operation switches 45 include a lamp switch, a blinker switch, a hazard switch, and the like.
- the connection between the ECU 18 and the lamps is not limited to the one shown in FIG. 4 and may be a circuit through other connection methods or relays.
- the main processing unit 44 is composed of a plurality of devices, and includes a front controller 46 that controls the cameras 22L and 22R, a rear controller 48 that controls the cameras 24L and 24R, Main control for image processing, such as confirmation monitor 50 that displays acquired image data for confirmation, switch ⁇ ⁇ 52 that displays images that can also be obtained by camera 22L, 22R, 24L, 24R force and display on confirmation monitor 50
- a main computer 54 that performs communication
- an antenna 56 that is connected to the main computer 54 and communicates with the terminal 20, and an RFID (Radio Frequency Iaentincation) reception that receives data from the ID tag 34.
- RFID Radio Frequency Iaentincation
- the RFID receiver 58 can recognize the model code of the vehicle 14, the manufacturing number code, and the identification number of the terminal 20 based on the wireless information obtained from the ID tag 34.
- the image data signal supplied to the confirmation motor 50 is, for example, the NTSC (National Television Standards Committee) system, and is supplied to the main computer 54 as digital data.
- the main computer 54 is connected to the front controller 46 and the rear controller 48 via the hub 60.
- Consoles 46a and 48a for performing predetermined adjustment operations are connected to the front controller 46 and the rear controller 48.
- Stable AC power is supplied to the main computer 54 via the uninterruptible power supply 66, and the front controller 46, Stable direct current power is supplied to the controller 48 and the confirmation monitor 50 via the DC converter 68.
- the main computer 54 is connected to a no-lot lamp 70 indicating that the vehicle 14 is being inspected, and is disposed near the runway 12.
- the lamps as test objects are all lamps that emit light toward the outside of the vehicle, and the high-beam headlamps 72L, 72R are provided at the front part.
- welcome lamps 84L and 84R are lamps provided near the lower part of the door mirror, and can illuminate the nearby ground when an occupant performs an unlocking operation or opening / closing operation of the vehicle door. is there.
- Headlamp 72L, low beam headlamp 74L and front small lamp 76L are built into lamp unit 85L
- high beam headlamp 72L, low beam headlamp 74L and front small lamp 76L are built into lamp unit 85R ing
- the brake lamps 86L and 86R, rear small lamps 88L and 88R, rear win forces 90L and 90R, knock lamps 92L and 92R, license plate lamp 94 and high Mount stop lamp 96 is listed as an inspection target.
- the high-mount stop lamp 96 is a lamp provided along the lower edge of the rear shield 97 and lights up together with the brake lamps 86L and 86R during braking.
- the inspection targets are shared by the force cameras 22L, 22R, 24L, and 24R.
- the camera 22L shares the inspection of the high beam headlamp 72L, the low beam headlamp 74L, the front small lamp 76L, the fog lamp 78L, the front wing force 80L, and the welcome lamp 84L.
- the camera 22R is the high beam headlamp 72R. , Low beam headlamp 74R, front small lamp 76R, fog lamp 78R, front wing force 80R and welcome lamp 84R.
- the camera 24L shares the inspection of the brake lamp 86L, the rear small lamp 88L, the rear win force 90L, and the high-mount stop lamp 96, and the camera 24R uses the brake lamp 8 It shares the inspection of 6R, rear small lamp 88R, rear win force 90R and license plate lamp 94.
- the cameras 22L, 22R, 24L, and 24R are arranged at positions where the inspection target lamp can be accurately imaged.
- the cameras 22L and 22R are provided at the left and right positions outside the runway 12 (see Fig. 1), the front wint force 80L on the lateral side as well as the front ramps 85L and 85R, etc.
- 80R and welcome lamps 84L and 84R can also be imaged, there is no need for a dedicated camera for imaging the side, and the number of imaging units is small.
- the cameras 24L and 24R are provided behind the rear end of the longest vehicle 14a among the various types of vehicles 14 to be inspected, and the rear of all the vehicles 14 can be imaged. Yes (see Figure 1). Therefore, it is not necessary to construct another imaging unit or to drive the cameras 24L and 24R according to the type of the vehicle 14.
- each of the cameras 22L, 22R, 24L, and 24R is provided outside the runway 12, the vehicle 14 can easily enter the inspection position. In addition, after the inspection is completed, the vehicle can move forward and the next vehicle 14 to be inspected can enter, so-called line inspection becomes possible.
- the image sensor is provided on the side of the vehicle 14, it is necessary to arrange it at a position slightly away from the vehicle 14 in order to obtain an appropriate field of view. Or a wide-angle lens must be used. A wide-angle lens is not preferable because it is expensive and has a large image distortion.
- the cameras 22L, 22R, 24L, and 24R are arranged in the vicinity of the force runway 12 that is provided at a position slightly away from the vehicle 14 to obtain a wide field of view. Space saving is achieved.
- the cameras 22L, 22R, 24L, and 24R use general-purpose lenses and are inexpensive.
- the cameras 22L and 22R are not less than the height of the high beam headlamps 72L and 72R and the single beam headlamps 74L and 74R and not more than the height of the welcome lamps 84L and 84R. It is provided in the position.
- the high beam headlamps 72L and 72R and the low beam headlamps 74L and 74R illuminate the road surface. Since the optical axis is slightly downward, a large amount of light does not enter the cameras 22L and 22R directly. It is possible to prevent the occurrence of excessive halation.
- welcome lamps 84L, 84R The part is not hidden by the door mirror and can be imaged reliably.
- the cameras 24L and 24R are provided at positions higher than the height of the high-mount stop lamp 96, and the high-mount stop lamp 96 can be reliably imaged without being hidden by the rear trunk portion.
- the cameras 22L, 22R, 24L, and 24R are provided outside the runway 12, but the distance between the camera 22L and the camera 22R and the distance between the camera 24L and the camera 24R are the vehicle width. It suffices if the above intervals are provided.
- the vehicle width is the width of the body 36 excluding the door mirror. If there is an interval larger than the width of the body 36, the lateral side surface can be imaged, and if the height is different from the door mirror, the vehicle 14 can pass through. If the door mirror has a lamp such as a win force, it should be installed at a position that is greater than its width.
- the distance between the front cameras 22L and 22R and the pawl 38 is sufficiently separated, and the vehicle 14 that has been inspected turns right or left and exits the runway 12 as shown by an arrow A in FIG. You can do it.
- a plurality of inspection programs corresponding to the model code of the vehicle 14 are recorded in the storage unit of the main processing unit 44, and the inspection program stores data on a plurality of windows set on the acquired image data. Contains. These windows have multiple applications, applications to limit the inspection area on the obtained image data, applications to detect the position of the front wheels 26L, 26R, rear wheels 30L, 30R, and spotlights 28L, 28R, Used to check the lighting of fluorescent lamps 32L and 32R.
- Image data 100 was obtained by imaging the right front of the vehicle 14 with the camera 22R, and image data 101 was obtained by imaging the right rear of the vehicle 14 with the camera 24R.
- the image data 100 includes a brightness confirmation window 102, a tire horizontal position confirmation window 104, a body vertical position confirmation window 106, a front lamp inspection window 108, a front win force inspection window 110, and a side.
- the win force inspection window 112, fog lamp inspection window 114 and welcome lamp inspection window 116 are set!
- the luminance confirmation window 102 is within the illumination range 103 illuminated by the spotlight 28R. It is a small window provided at the position of the runway 12 or the stop 38 in
- the tire horizontal position confirmation window 104 is a long and horizontally long window, and within the illumination range 103, it is lateral to the left edge Le and right edge Re of the sidewall (side surface) of the front wheel 26R. It is set at a crossing position.
- the tire horizontal position confirmation window 104 is set so as not to cover the body 36 and slightly higher than the runway 12.
- the body vertical position confirmation window 106 is a vertically long window, and in the illumination range 103, V is vertical, and the front wheel edge Te at the upper end of the front wheel 26R and the wheel house edge We at the upper end of the wheel house are vertically oriented. It is provided at the reference position assumed to cross This reference position is set as a position including an image to be inspected when the vehicle 14 is stopped at the center of the runway 12.
- the front lamp inspection window 108 is a window provided at a reference position assumed to include a high beam headlamp 72R, a low beam headlamp 74R, and a front small lamp 76R, and includes the entire lamp unit 85R.
- Front wind force inspection window 110, fog lamp inspection window 114, and welcome lamp inspection window 116 are windows provided at reference positions assumed to include front turn signal 80R, fog lamp 78R, and front win force 80R, respectively. It is set to an appropriate area larger than the body image.
- the image data 101 obtained by imaging the right rear portion of the vehicle 14 includes a brightness confirmation window 122, a tire horizontal position confirmation window 124, a body vertical position confirmation window 126, A rear lamp inspection window 128, a rear win force inspection window 130, and a high-mount stop lamp inspection window 132 are set.
- the brightness confirmation window 122, the tire horizontal position confirmation window 124, and the body vertical position confirmation window 126 are windows corresponding to the brightness confirmation window 102, the tire horizontal position confirmation window 104, and the body vertical position confirmation window 106, respectively. And is provided within the illumination range 134 illuminated by the fluorescent lamp 32R.
- the rear lamp inspection window 128 is set at a reference position assumed to include the brake lamp 86R and the rear small lamp 88R.
- Rear win force inspection window 130 and high mount stop lamp inspection window 1 32 is set to a reference position that is assumed to include a rear win force 90R and a high-mount stop lamp 96 in order.
- the positions of the brightness confirmation window 102, the tire horizontal position confirmation window 104, the brightness confirmation window 122, and the tire horizontal position confirmation window 124 are fixed.
- the default position of the other windows is set as the reference position according to the model code of the vehicle 14, and the setting is changed according to the left and right positions of the vehicle 14 as will be described later.
- the position of the tire horizontal position confirmation window 124 may be changed according to the wheel base of the vehicle 14.
- the left and right front and rear image data of the vehicle 14 imaged by the cameras 22L and 24L are also symmetrical with the respective windows in the right image data 100 and 101.
- a similar window is set for.
- the high mount stop lamp inspection window 132 is not set in the image data captured by the camera 24L, and the license plate lamp confirmation window 140 (see Fig. 8) is assumed at the reference position where the license plate lamp 94 is assumed to be included. Is set, and inspection targets are evenly allocated.
- step S1 a predetermined cover in the vehicle interior of the vehicle 14 is removed, and the terminal 20 is connected to the internal connector.
- step S2 the inspector drives the vehicle 14 to move it to the specified inspection position. That is, as shown in FIG. 7, the front wheels 26L and 26R are driven to a position where they ride on between the two wheel stops 38 and stopped, and the vehicle 14 is positioned. At this time, it is detected by the photoelectric switches 40L and 40R that the front wheels 26L and 26R have reached the specified inspection position, and an ON signal is transmitted to the main processing unit 44.
- step S3 the main processing unit 44 receives an ON signal from the photoelectric switches 40L and 40R. Wait until it is supplied, and when the ON signal is detected, go to step S4.
- step S4 the main processing unit 44 obtains the serial number code of the vehicle 14 and the terminal device 20 recorded in the ID tag 34 using the RFID receiver 58 and lights up. Pilot lamp 70 is turned off or discolored.
- step S5 the main processing unit 44 continues communication with the terminal 20, and confirms that the vehicle speed is 0, the foot brake is off, and the side brake is on. .
- the terminal device 20 acquires these pieces of information from the ECU 18 and communicates them to the main processing unit 44. Since the vehicle speed is 0 and the side brake is on, it is confirmed that the vehicle 14 is completely stopped, and a reliable lamp inspection can be performed. Since the foot brake is turned off, the brake lamps 86L and 86R and the high-mount stop lamp 96 are turned off, and the preparation conditions for inspection are satisfied.
- the main processing unit 44 loads an inspection program corresponding to the acquired model code from a storage device such as a node disk in parallel while performing these checks.
- This inspection program includes the following information for each type of vehicle 14. That is, the detection sequence of the vehicle 14, information on the lamp, information on each window, and the like.
- the information about the lamp is information such as the number, type, and position of the lamp.
- step S6 the spotlights 28L and 28R and the fluorescent lamps 32L and 32R are turned on to illuminate the front wheels 26L and 26R and the rear wheels 30L and 30R.
- the main processing unit 44 confirms whether or not these lights are lit correctly and whether or not they are lit. If it is determined that the lights are lit, the process proceeds to step S7, and the lighting is not confirmed correctly. In this case, a predetermined error display is displayed in step S7.
- step S6 the illumination is confirmed by checking the average brightness of the brightness check window 102 on the image data 100 (see Fig. 7), and if the average brightness is equal to or higher than the specified value, the spotlight 28R. Is determined to be lit correctly.
- step S8 the edge detection of the front wheels 26L and 26R, the rear wheels 30L and 30R, and the edge detection of the wheel house are performed. In other words, although the vehicle 14 position in the vehicle length direction is defined by the wheel stop 38, the left-right position of each lamp also changes concomitantly because the left-right direction position can change within the width of the runway 12. To do.
- the body 36 of the vehicle 14 may basically be tilted slightly to the left or right depending on the balance of the force load that is kept horizontal, the vertical position of each lamp changes according to the tilt. Therefore, in order to inspect each lamp appropriately, edge detection of the front wheels 26R, 26L and rear wheels 30R and 30L and edge detection of the wheelhouse are performed, and the left and right positions and inclination of the vehicle 14 are detected to detect each lamp. Accurately identify the position of the body.
- step S9 the position of each inspection window is corrected based on the left-right position and inclination of the vehicle 14 detected in step S8.
- step S10 the lamps are sequentially inspected based on the corrected windows.
- step S11 the main processing unit 44 notifies the terminal 20 of a signal indicating that the inspection is completed and information on the inspection result, and displays the information on the monitor 20a.
- the pilot lamp 70 is turned on or returned to the original color display.
- steps S8, S9, and S10 in FIG. 9 will be sequentially described in detail.
- steps S8 and S9 will be described in detail with reference to FIG. 10 and FIG.
- the process in FIG. 10 is the force shown in one flowchart as a series of processes. Of these, steps S101 to S108 correspond to step S8, and step S8.
- step S9 109 and S110 are processes corresponding to step S9.
- step S101 the tire horizontal position confirmation window 104 (see FIG. 11) is extracted.
- the tire horizontal position confirmation window 104 is scanned with the left force directed to the right, and the luminance value for each predetermined pixel width (for example, 1 pixel) is obtained in order.
- the brightness value changes (brighter) so as to increase, and the point where the difference from the brightness value of the area adjacent to the left exceeds the specified value is specified as the left edge Le of the front wheel 26R.
- V ⁇ ⁇ ⁇ the same applies to the following luminance change detection process.
- step S102 an offset amount Oe, which is a horizontal distance between the front wheel reference edge Be that is the reference of the default position of each inspection window shown in FIG. 11 and the left edge Le obtained in step S101, is obtained.
- the front wheel reference edge Be is defined as the right edge position on the image of the front wheel 26R 'when the vehicle 14 stops at the center of the track 12! /.
- step S103 the luminance value for each predetermined pixel width is obtained in order from the left edge Le to the right, and the luminance value is changed so that the luminance value decreases (darker).
- the point where the difference from the brightness value exceeds the specified value is identified as the right edge Re of the front wheel 26R.
- the horizontal distance from the left edge Le is more than the specified value based on the diameter of the wheel 150 as an additional condition for the right edge Re detection.
- step S104 correction is performed to move the body vertical position confirmation window 106 horizontally to the vertical line C passing through the intermediate position between the left edge Le and the right edge Re (see Fig. 11).
- the confirmation window 106 include the front wheel edge Te and the wheel house edge We which are the upper ends of the front wheel 26R. Note that the vertical position of the body vertical position confirmation window 106 is preset based on the tire diameter included in the model code. Thus, the body vertical position confirmation window 106 is simply set based on the left edge Le and the right edge Re.
- step S105 the body vertical position confirmation window 106 is extracted, and the body vertical position confirmation window 106 is scanned from the top to the bottom, and obtained in the order of luminance values for each predetermined pixel width.
- the luminance value changes so as to decrease, and a portion where the difference from the luminance value of the adjacent area above the specified value is specified as a wheel nose edge We.
- step S106 the luminance value for each predetermined pixel width is obtained in order downward from the wheel house edge We, and the luminance value is changed so as to increase, with the luminance value of the adjacent area above.
- the part where the difference exceeds the specified value is identified as the front wheel edge Te of the front wheel 26R.
- the camera 22R also captures the oblique force of the vehicle 14, the upper end of the gap between the front wheel edge Te and the wheel house edge We is widest, so that they can be reliably distinguished and easily detected. It is. Further, since the wheel house edge We and the front wheel edge Te are substantially horizontal, they can be easily and reliably detected by scanning in the vertical direction.
- step S107 a right front wheel gap Gfr which is a difference between the wheel house edge We and the front wheel edge Te is obtained, and a difference ⁇ h between the right front wheel gap Gfe and the reference gap Gb is obtained.
- the height of the front wheel 26R is known, the height of the wheel house edge We can be accurately identified by referring to the right front wheel gap Gfr based on this height.
- step S101 to step S107 is performed in the same manner for other image data obtained from the cameras 22L, 24R, and 24L, and the left front wheel gap Gfl, the right rear wheel gap Grr, and the left rear wheel.
- a gap Grl (not shown) is required.
- step S108 the vehicle height, front / rear inclination, and left / right inclination of the vehicle 14 are detected and inspected from the right front wheel gap Gfr, the left front wheel gap Gfl, the right rear wheel gap Grr, and the left rear wheel gap Grl.
- the values of each gap, vehicle height, front / rear inclination, and left / right inclination are compared with preset default values, and if it is determined to be an abnormal value, a warning display is displayed on the monitor 20a and a predetermined storage unit is displayed. Record.
- the left / right inclination Rf in front of the vehicle 14 is obtained as Rf ⁇ Gfr ⁇ Gfl
- the forward / backward inclination Pr in the right direction is obtained as Pr Gfr Grr.
- each suspension supporting the body 36 has a specified height.
- step S109 the front lamp inspection is performed on the right image data 100 (see Fig. 7). Position correction is performed to move the window 108, the front wing force inspection window 110, the fog lamp inspection window 114, and the well cam lamp inspection window 116 horizontally by the offset amount Oe.
- step S110 the vertical positions of the front lamp inspection window 108, the front wing force inspection window 110, the fog lamp inspection window 114, and the welcome lamp inspection window 116 are corrected. Based on the calculated vehicle height and left / right slope Rf, position correction is performed to move each window vertically. In this case, when the vehicle height is higher than the reference value and the left / right slope Rf is 0, each window is moved uniformly upward by the same amount. On the other hand, when the vehicle height is equal to the reference value and the right / left slope Rf is large, the amount of movement of the front ramp inspection window 108 close to the vehicle center is small, and the amount of movement of the side winch inspection window 112 far from the vehicle central force is large.
- the front lamp inspection window 108 is surely positioned to include the high beam headlamp 72R, the low beam headlamp 74R, and the front small lamp 76R. Moving.
- the front wheel 26L, 26R and the rear wheel 30L, 30R are located in four locations! /, Respectively, detecting the horizontal position of the wheel and detecting the wheel nose edge We to determine its height.
- the vehicle height and the vehicle body inclination can be accurately obtained, and the position and posture of the vehicle 14 can be detected in three dimensions, and the positions of the lamps in the lamp units 85L and 85R as well as other lamps can be accurately determined. Can be identified. As a result, the corresponding inspection window can be set appropriately.
- the camera 22R images the vehicle 14 also with the front oblique side force
- the side surface of the front wheel 26R, the lamp unit 85R, the side win force 82R, the welcome lamp 84R, and the like are included in one imaging range.
- the image of the front wheel 26R is used to detect the position of the vehicle 14, while the lamp Images such as the knit 85R, side win force 82R, and welcome lamp 84R are used for lighting and blinking inspection, so the camera 22R can be used for both vehicle position detection and lamp inspection.
- FIG. 11 shows a typical manner in which the front blinker inspection window 110 is moved in the horizontal and vertical movement corrections in steps S109 and S110. Since the front win force test window 110 is close to the right wheel nose, the amount of movement in the vertical direction can be approximated by the difference ⁇ h.
- step S10 when it is detected that the vehicle 14 has reached the inspection position based on the signals from the photoelectric switches 40L and 40R, the lamp is turned on or blinked via the terminal 20 and the ECU 18.
- the cameras 22R, 22L, 24R, and 24L forces also acquire image data and inspect the lamp based on the image data.
- step S201 the main processing unit 44 transmits a predetermined signal to the terminal 20 to turn off all the lamps that can be controlled under the action of the ECU 18, and the spotlights 28L, 28R. Turn off the fluorescent lamps 32L and 32R.
- step S202 the main processing unit 44 turns on and off the front small lamps 76L and 76R, the fog lamps 78L and 78R, the welcome lamps 84L and 84R, the rear small lamps 88L and 88R, and the license plate lamp 94 in order.
- the camera 22L, 22R, 24L, and 24R force are checked for lighting based on the obtained images.
- the low-luminance lamp can be appropriately inspected without being affected by the high-luminance headlamp.
- the main processing unit 44 simultaneously performs the headlamp lighting inspection in steps S203 and S204 and the rear win force flashing inspection in steps S205 and S206.
- the main processing unit 44 can simultaneously perform the WIN force flashing inspection and the headlamp lighting inspection in one routine without using multitask processing, but for ease of understanding, FIG. It is expressed as a separate process that has branched.
- step S203 the main processing unit 44 transmits a predetermined signal to the terminal 20, turns on and off the high beam headlamps 72L and 72R under the action of the ECU 18, and obtains images obtained from the cameras 22L and 22R. Based on the above, check the lighting.
- step S204 the main processing unit 44 transmits a predetermined signal to the terminal 20, turns on and off the low beam headlamps 74L and 74R under the action of the ECU 18, and obtains images obtained from the cameras 22L and 22R. Based on the above, check the lighting.
- step S205 the main processing unit 44 transmits a predetermined operation signal to the terminal device 20 to blink the rear win force 90L under the action of the ECU 18.
- the rear win force 90L blinks correctly based on the left rear image data from which the camera 24L force can also be obtained, and a confirmation inspection of its cycle is performed.
- step S206 the blinking inspection of the rear win force 90R is performed in the same manner as the inspection of the rear win force 90L in step S205.
- incorrect wiring reverse wiring
- steps S205 and S206 are the forces performed simultaneously with steps S203 and S204.
- the rear wing forces 90L and 90R are sufficiently separated from the headlamps, the optical axis directions are opposite, and the force is different.
- An inspection is performed based on the image data 100 and 101. Therefore, high-intensity headlamps can be properly tested without affecting the rear-winning 90L and 90R inspections.
- the rear win force 90L flashes in sync with the front win force 80L and side win force 82L
- the rear win force 90R flashes in sync with the front win force 80R and side winker 82R.
- Front win force 80L, 80R, side Win force 82 L, 82R has relatively low brightness, so it will not affect the inspection of high beam headlamps 72L, 72R and low beam headlamps 74L, 74R!
- steps S207 and S209 are executed simultaneously.
- step S207 the main processing unit 44 transmits a predetermined operation signal to the terminal 20, flashes the front win force 80L under the action of the ECU 18, and performs the front win force according to the same procedure as in step S 203. Perform 80L inspection.
- step S208 the main processing unit 44 transmits a predetermined operation signal to the terminal 20 to send E
- the front win force 80R blinks under the action of the CU 18, and the front win force 80R is inspected by the same procedure as in step S203.
- step S209 lighting inspection of the brake lamps 86L and 86R and the high-mount stop lamp 96 is performed.
- Brake lamps 86L and 86R and high-mount stop lamp 96 are directly connected to the switch linked to the brake pedal and are not under the action of ECU18. I do.
- the main processing unit 44 sends a signal indicating the start of the brake lamp inspection to the terminal 20, and the terminal 20 having received the signal indicates to the monitor 20a that "Please step on the foot brake. "Is displayed. After confirming this indication, the worker steps on the brake lamp and turns on the brake lamps 86L and 86R and the high-mount stop lamp 96.
- the main processing unit 44 performs lighting inspection based on the display in the rear lamp inspection window 128 and the high-mount stop lamp inspection window 132 on the images obtained from the cameras 24L and 24R.
- step S210 lighting inspection of the back lamps 92L and 92R is performed. Since the knock lamps 92L and 92R are directly connected to the switch linked to the shift lever and are not under the action of the ECU 18, they are turned on when the inspector performs a shift change to perform the inspection. In this case, the inspection is performed by displaying an appropriate display on the monitor 20a and urging the operator to perform a shift change in the same manner as in step S209.
- the work instructions to the inspector in steps S209 and S210 are not limited to message formats, but should be based on graphic formats such as pictographs and sound pattern changes of the built-in buzzer.
- the headlamp lighting inspection process, the blinking power flashing inspection process, and the other lamp lighting inspection processes are different from each other in the image data (the imaging time is different or the camera that performs imaging). Are inspected on the basis of data having different imaging ranges. Therefore, it is possible to perform an accurate inspection in which the high-intensity light emitted from the headlamp does not affect the Win force and other image data used for the inspection of the lamp. In addition, inspection can be performed simultaneously and in parallel using image data with different imaging ranges, and the inspection time can be reduced.
- step S301 the main processing unit 44 sends an operation signal for lighting any one of the lamps to be inspected among the high beam headlamp 72R, the low beam headlamp 74R, and the front small lamp 76R to the terminal 20, Lights up via the terminal 20 and the ECU 18.
- step S302 image data is acquired from the camera 22R and binarization processing is performed for each. That is, the obtained original image data is data having a plurality of gradations (for example, 256 gradations) for each pixel, and a pixel having a gradation value equal to or higher than a set gradation value is set to “1”. Pixels that are less than the value are converted to “0”. By performing such binarization processing in advance, subsequent image processing operations are facilitated, and inspection can be performed quickly.
- gradations for example, 256 gradations
- step S304 branch processing is performed according to the type of the lamp that is lit, and in the case of the front small lamp 76R (in the case of step S202), step S3 is executed. If the low beam headlamp 74R is in the case of step S204 (step S204), the procedure proceeds to step S306. If the high beam headlamp 72R is in the case of step R203 (in the case of step S203), the procedure proceeds to step S307.
- step S305 when the ratio Rate is in the range of 30% to 70%, it is determined that the front small lamp 76R is normally lit, and the process proceeds to step S308.
- the rate is out of this range, it is determined that the front small lamp 76R is turned off or another lamp is lit, and the process proceeds to step S309. In this case, it is recognized that there is a disconnection, a ball break or incorrect wiring.
- the pixel part “1” (not hatched! / Part) is the lamp. It is almost limited to the area showing unit 85R, and 30% to 70% is considered acceptable.
- step S306 if the ratio Rate is within the range of 70% to 90%, it is determined that the low beam headlamp 74R is normally lit, and the process proceeds to step S308, where the ratio Rate is within this range. When it is outside, it is determined that the low beam head lamp 74R is extinguished or another lamp is lit, and the process proceeds to step S309.
- step S307 when the rate is 90% or more, it is determined that the high beam headlamp 72R is normally lit! /, And the process proceeds to step S308, where the rate rate power is less than 90%. If there is, it is determined that the high beam head lamp 72R is extinguished or another lamp is lit, and the process proceeds to step S309.
- step S308 information indicating that the corresponding lamp is lit normally is recorded in a predetermined storage unit, and in step S309, information indicating that the lamp is abnormal is recorded. [0151] After step S308 or S309, a signal to turn off the corresponding lamp is sent to the terminal 20.
- the front small lamp 76R, the low beam head lamp 74R, and the high beam head lamp 72R are incorporated in the lamp unit 85R and arranged at positions very close to each other. It is difficult to distinguish which lamp is lit because it diffuses somewhat. Also, depending on the type of lamp unit 85L, 85R, the reflector provided behind the light source may commonly reflect the light from each lamp, making it more difficult to identify which lamp is lit. May be.
- the difference in average luminance in the front lamp inspection window 108 is detected by using the rate Rate indicating the ratio of the areas whose luminance values are equal to or greater than the threshold value.
- the front small lamp 76R, the low beam head lamp 74R, and the high beam head lamp 72R can be distinguished and inspected. As a result, these three lamps can be inspected in one front lamp inspection window 108 without the need to particularly identify the positions of the front small lamp 76R, the low beam head lamp 74R and the high beam headlamp 72R in the lamp unit 85R. .
- the image data force that has been subjected to binary processing is also detected in the front small lamp 76R, the low beam head in order to detect the difference in average brightness in the front lamp inspection window 108 based on the rate based on the area.
- the lamp 74R and the high beam headlamp 72R can be accurately identified.
- the front small lamp 76R may be turned on at the same time. Similarly, when the low beam headlamp 74R is turned on. Alternatively, the front small lamp 76R may be turned on at the same time. In this case, the pass / fail range value in steps S306 and S307 may be adjusted in consideration of lighting of the front small lamp 76R.
- the process shown in FIG. 13 is the force shown for the inspection of the right lamp unit 85R.
- the lamp unit 85L can be inspected in the same way.
- other lamps can be inspected by the same procedure as the front small lamp 76R.
- the fog lamp 78R, welcome lamp 84R, rear small lamp 88R and license plate lamp 94 are the fog lamp inspection window 114, welcome lamp. Each can be inspected using the inspection window 116 and the license plate lamp verification window 140.
- the welcome lamps 84R and 84L are inspected by setting a window similar to the brightness confirmation window 122 on the ground surface of the runway 12 and detecting the illuminance of the window. May be.
- the license plate lamp 94 may be inspected by setting an inspection window in the license plate portion serving as an irradiation surface. In this case, the light emitting portions of the velum lamps 84R and 84L and the license plate lamp 94 may not be included in the image data.
- the win force that is, the front win force 80L, 80R, the side win force 82L, 82R and the rear win force 90L, 9 OR blinks at a predetermined cycle based on the blink timer function of the ECU 18 or other processing unit. Based on the procedure shown in Fig. 15, whether or not the force is appropriate for this blinking cycle is checked.
- step S401 the main processing unit 44 sends an operation signal for blinking the front win force 80R to the terminal 20 and resets a predetermined execution number counter to zero.
- step S402 the main processing unit 44 acquires image data from the camera 22R and performs binarization processing in the same manner as in step S302.
- step S403 as in step S303, the front win force inspection window is displayed.
- step S404 it is checked whether or not the front win force 80R is lit. If it is lit, the process proceeds to step S405. If it is not lit, the process proceeds to step S406. Specifically, when the ratio Rate is 30% or more, it is determined that the light is on, and when it is less than 40%, it is determined that the light is off. Also, the binarization process is omitted and the front The average brightness in the inca inspection window 110 may be used for determination.
- step S405 information indicating lighting is recorded in the recording unit next to the previous recording unit in the predetermined time-series recording table provided in the storage unit, and in step S406, the information is turned off. The information indicating is recorded. Thereafter, the process proceeds to step S406.
- step S406 after the execution number counter is incremented, it is confirmed whether or not the execution number counter has reached a predetermined number. That is, if the number of executions of the loop shown in steps S402 to S405 has reached the predetermined number, the process proceeds to step S407, and if not, the process returns to step S402 and continues the process.
- the number of executions is set to a value corresponding to the time that the front blinker 80R blinks three or more times. It should be noted that the loop shown by S402 to S405 is controlled so as to be executed at every specified minute time based on an appropriate timer function.
- step S407 the main processing unit 44 sends an operation signal for terminating the blinking of the front win force 80R to the terminal device 20, and turns off the front win force 80R.
- step S408 the average blinking cycle of the information power front win force 80R recorded in the time series recording table is obtained. That is, in the time series recording table, there are three or more alternating areas where information indicating lighting is continuously recorded and areas where information indicating extinction is continuously recorded. Therefore, the time of 3 periods can be obtained from the interval between the switching points of these areas, and the value can be set to 1Z3.
- step S409 it is confirmed whether or not the obtained average blinking cycle is within the specified range. If it is within the specified range, the process proceeds to step S410, and if it is out of the specified range, the process proceeds to step S411.
- step S410 information indicating that the average blink cycle of the front win force 80R is normal is recorded in a predetermined storage unit, and in step S411, information indicating that it is abnormal is recorded.
- the examination of the blinking confirmation of the Win force shown in Fig. 15 is finished.
- the procedure shown in Fig. 15 is the force shown in the case of inspecting the front win force 80R.
- the front win force 80 L, side win forces 82L and 82R, and rear win forces 90L and 90R the same procedure is used. Is done. Of these, side win force 82R and rear win force 90R are The inspection is performed using the force inspection window 112 and the rear win force inspection window 130. Since the front blinker 80R and the side win force inspection window 112 are imaged in the same image data 100 (see FIG. 7), the inspection may be performed simultaneously.
- the vehicle lamp inspection device 10 when the vehicle position recognition unit 16 detects that the vehicle 14 has reached the inspection position, the terminal 20 and In addition, the lamp is automatically turned on or blinked via the ECU 18, and the lamp is imaged by the cameras 22L, 22R, 24L, and 24R, so that the inspection of the lamp can be automated. Inspection errors can be prevented and quick inspections can be performed.
- the inspection sequence corresponding to the vehicle 14 is loaded on the terminal 20, and the automation of the inspection is easily realized by cooperating with the main processing unit 44.
- the terminal 20 is also capable of wireless communication. It can be used for other inspections, so it is not necessary to attach and detach each inspection process. Further, since the vehicle lamp inspection device 10 has the vehicle position recognition unit 16, it is suitable for an inspection line in which an inspector drives and moves the assembled vehicle 14 on the runway 12. Applied.
- the edges Le and Re are detected by scanning the tire horizontal position confirmation window 104 set at a position crossing the front wheel 26R, and the vehicle The positional relationship between the 14 lamps and the camera 22R can be detected appropriately. Accordingly, it is possible to obtain the offset amount Oe, which is the difference between the edge Le and the front wheel reference edge Be, and to correct the movement of each inspection window to the position where the lamp is included. In addition, a simple and inexpensive apparatus can be used without using a complicated vehicle positioning mechanism.
- an inspection window is set at a position where the lamp is included, so that the model of the vehicle 14 is displayed on the image data 100. Differences can be dealt with, and versatility can be improved. Therefore, the present invention is suitably applied to an inspection line in which an inspector drives and moves the assembled vehicle 14 on the runway 12.
- the high beam headlamp 72R, the low beam headlamp 74R, and the front small lamp 76R of the lamp unit 85R were obtained by imaging and individually obtained.
- Image data 100 is the threshold value Perform binarization processing by value. After that, the area ratio Rate between the area of the pixel of “1” in the front lamp inspection window 108 and the area of the entire front lamp inspection window 108 is obtained, and compared with a predetermined pass range value to determine each lamp.
- the operating state can be easily checked.
- the vehicular lamp inspection apparatus 10 does not require a projection screen and can be configured simply and compactly. Also, complicated procedures such as camera aperture control are not required.
- the edge Le of the front wheel 26R is obtained by scanning the tire horizontal position confirmation window 104, and the horizontal position of the vehicle 14 is specified. Also, based on the edge Le, etc., the body vertical position confirmation window 106 is set at a position that intersects the wheel edge We in the vertical direction, and the height of the body 36 at that position can be accurately obtained by scanning. it can.
- the cameras 22R, 22L, 24R, and 24L can be used for both vehicle position detection and lamp inspection.
- the dual-use lamp inspection apparatus 10 can be constructed at a low cost, and can be applied to a vehicle 14 having a different overall length in general. Therefore, the present invention is preferably applied to an inspection line in which an inspector drives and moves the assembled vehicle 14 on the runway 12.
- the above-described luminance is not limited to the luminance [cdZm 2 ] in a narrow sense, but has a broad meaning including an amount of overall brightness in a predetermined window, for example.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CN2005800405844A CN101065653B (zh) | 2004-11-26 | 2005-11-25 | 车灯检查设备和检查方法 |
US11/791,325 US20070296961A1 (en) | 2004-11-26 | 2005-11-25 | Vehicle Lamp Inspection Equipment and Inspection Method |
GB0710343A GB2435178B (en) | 2004-11-26 | 2005-11-25 | Vehicle lamp inspection equipment and inspection method |
CA2589303A CA2589303C (en) | 2004-11-26 | 2005-11-25 | Vehicle lamp inspection equipment and inspection method |
JP2006547880A JP4469860B2 (ja) | 2004-11-26 | 2005-11-25 | 車両用灯体検査方法 |
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JP2004-342842 | 2004-11-26 | ||
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US (1) | US20070296961A1 (ja) |
JP (1) | JP4469860B2 (ja) |
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- 2005-11-25 CN CN2005800405844A patent/CN101065653B/zh not_active Expired - Fee Related
- 2005-11-25 CA CA2589303A patent/CA2589303C/en not_active Expired - Fee Related
- 2005-11-25 JP JP2006547880A patent/JP4469860B2/ja not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
JP4469860B2 (ja) | 2010-06-02 |
CN101065653A (zh) | 2007-10-31 |
CN101065653B (zh) | 2010-12-15 |
CA2589303A1 (en) | 2006-06-01 |
GB2435178A (en) | 2007-08-15 |
US20070296961A1 (en) | 2007-12-27 |
CA2589303C (en) | 2010-05-04 |
GB2435178B (en) | 2010-10-27 |
GB0710343D0 (en) | 2007-07-11 |
JPWO2006057363A1 (ja) | 2008-06-05 |
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