JP2009243918A - Operation inspection method of electric component, and program used therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operation inspection method for checking efficiently the operation state of an electric component in a short time by few members. <P>SOLUTION: In an inspection area R, wire harnesses 1, etc., in one automobile are connected similarly to a mode used for being mounted actually in an automobile, and connected to the same electric components 2 as the automobile for being mounted. An inspection device 7 comprising four cameras 5a, 5b, 5c, 5d and a computer 6 is installed on a periphery of the inspection area R. When checking the operation state of the electric components 2, the operation state of the electric components 2 is photographed by the cameras 5a, 5b, 5c, 5d, and it is determined whether the operation state is normal or not based on image processing of the photographed image, and the determination result is taken into the computer 6. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an operation inspection method for performing an operation check of an electrical component in a state where a wire harness mounted on an automobile and various electrical components are connected.

  In manufacturing a wire harness for an automobile, an operation inspection is performed at the time of trial manufacture to confirm whether the design of the wire harness satisfies a predetermined specification. This operation inspection is performed by connecting a prototype wire harness for one automobile in a large inspection space equivalent to one automobile and connecting all electrical components such as lamps, wipers, and audio to the wire harness. And it is performed by confirming visually whether each electrical component operate | moves normally with operation of a switch (patent document 1).

Japanese Patent Laid-Open No. 10-35553

  In the conventional operation inspection method described above, an operator walks around an inspection space of about one car and confirms the operation states of a large number of electrical components scattered one by one. Must be written on the check sheet. In addition, some of the electrical components are difficult to visually recognize the operating state in a bright indoor environment such as a lamp built in the switch, and difficult to visually recognize the operating state in a noisy environment such as audio or horn. There are also things. Therefore, in order to accurately grasp the operating state, a large number of people are required and it takes much time.

  An object of the present invention is to solve the problems associated with the above-described conventional electrical component operation inspection method, and to provide an operation inspection method capable of efficiently inspecting the operation state of electrical components within a short time with a small number of people. It is to provide.

  Among the present inventions, the invention described in claim 1 is an electrical equipment in which a plurality of electrical components are connected to a wire harness for an automobile, and these electrical components are operated by operating a switch to inspect the operating state. A component operation inspection method, wherein at least some of the electrical components are photographed with a camera, and whether or not the electrical components are in a normal state based on image processing of the photographed video. The determination is made and the determination result is taken into a computer.

  According to a second aspect of the present invention, in the first aspect of the invention, for some of the electrical components, the auxiliary lamp is turned on in accordance with the operation of the electrical component, and the lighting state of the auxiliary lamp is changed by the camera. In addition to photographing, it is characterized by determining whether or not the operating state is normal based on image processing of the photographed video.

  According to a third aspect of the present invention, in the first aspect of the invention, for some of the electrical components, sound generated by the operation of the electrical components is captured by the microphone, and the operation is performed based on the captured audio data. It is characterized by determining whether or not the state is normal. In addition, when the sound generated by the operation of the electrical components is captured by the microphone, if a method of extracting only the sound in a specific frequency region by the filter and detecting it is used, the influence of ambient noise can be avoided, and the operating state is determined. Is preferable because it becomes easier.

  According to a fourth aspect of the present invention, in the first aspect of the invention, for some of the electrical components, a voltage or a current generated at a connector terminal of a predetermined wire harness is measured, and the voltage or current is measured. Based on the value of the current, it is determined whether or not the operating state when connected to the wire harness is normal.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, in order to capture the operating state of the electrical component in the computer near the switch for operating at least a part of the electrical component. The input means is provided.

  According to a sixth aspect of the present invention, in the invention according to any one of the first to fourth aspects of the present invention, the operation instruction of the switch of the electrical component is guided by voice, and the switch is operated by operating the switch based on the operation instruction. The operation state of the electrical component corresponding to the above is automatically taken into the computer. In addition, if the switch of the electrical parts is distributed and it is configured to provide voice guidance when the switch is manually turned on, a system for executing the operation inspection method according to claim 6 can be constructed inexpensively and easily. It is preferable because it is possible.

  The invention described in claim 7 is characterized in that, in the invention described in any one of claims 1 to 4, operation switches for a plurality of electrical components are collected in one place.

  The invention described in claim 8 is characterized in that, in the invention described in any one of claims 1 to 4, the switch of at least some of the electrical components is operated by an actuator.

  According to a ninth aspect of the present invention, there is provided an operation inspection program for use in the electric component operation inspection method according to the first aspect, wherein the image processing of the image of the operation state of the electric component photographed by the camera is performed. And a second step of storing the result of the determination in a predetermined storage means. is there.

  According to the operation inspection method of the first aspect, since it is not necessary for the operator to walk around the workplace and visually check the operation state of the electrical component, even one person can accurately check the operation state within a short time. It is possible to easily check whether the design of the wire harness is correct. Further, since the data regarding the operating state is automatically taken into the computer, the data can be managed very easily and accurately. Furthermore, it is possible to easily confirm the cause of malfunction (confirmation of the cause in the case where an electrical component that should not originally operate is operating). In addition, the operation inspection method according to the first aspect can be easily arranged so as to correspond to a plurality of vehicle types by changing the image processing program.

  According to the operation inspection method of claim 2, since the operation state of the electrical component is replaced by the lighting state of the auxiliary lamp and the operation state is checked based on the image processing of the lighting state, the light emitting component with low brightness It is possible to accurately check the operating state even for electrical components that are difficult to grasp the operating state.

  According to the operation inspection method of the third aspect, it is possible to accurately check the operation state even with an electrical component that is difficult to grasp the operation state without causing a change in the state only by generating a sound.

  According to the operation inspection method of claim 4, it is accurately determined whether or not the operation state when the electrical component such as an engine electrical component is difficult to obtain is normally connected to the wire harness. (At least you can check if the design on the wire harness side is correct). In addition, according to the operation inspection method of the fourth aspect, it is possible to accurately check the operation state of an electrical component whose operation state is difficult to grasp without using an auxiliary lamp or the like.

  According to the operation inspection method of the fifth aspect, the operator can easily perform the operation of the switch of the electrical component and the check of the operation state alone in a short time.

  According to the operation inspection method of the sixth aspect, the operator can check the operation state of all the electrical components without omission by simply operating the switches of the electrical components according to the voice guide without making a mistake in the procedure. be able to. In particular, if the switches for operating electrical components are manual, and such manual switches are distributed, the labor and time required for checking the operating status of electrical components can be greatly reduced. It becomes possible to do.

  According to the operation inspection method of the seventh aspect, since the operator can operate the switches of the plurality of electrical components at one place and does not have to walk around the work place, the operation state can be checked within a very short time. It can be done easily by one person.

  According to the operation inspection method of the eighth aspect, the operator can operate the electrical component without operating the switch directly by operating the input means (key) of the computer. The status check can be easily performed by one person in a very short time.

  According to the operation inspection program of the ninth aspect, it is possible to accurately check the operation state of the electrical component within a short time with a small number of people.

  Hereinafter, an embodiment of an operation inspection method for an electrical component according to the present invention will be described in detail with reference to the drawings. FIG. 1 shows a state of an electrical component operation check. In a substantially rectangular inspection area R, a wire harness 1, 1... For one vehicle is actually mounted on the vehicle. And are connected to the same electrical components 2, 2,... As the automobile to be mounted (not connected to a large electrical component such as an engine). That is, the instrument panel harness 1a is connected to a meter, an audio device, a horn, and the like, and the floor harness 1b is connected to a door slide motor, a room lamp, an auto-lock solenoid, and the like, and the roof harness 1c. Is connected to a sunroof opening / closing motor or the like, and the engine harness 1d is connected to the relay box 3, the junction box 4 or the like.

  Further, around the inspection area R, an inspection device 7 including four cameras 5a, 5b, 5c, 5d and a personal computer (hereinafter simply referred to as PC) 6 is installed. The cameras 5a, 5b,... Of the inspection apparatus 7 can photograph the electrical components 2, 2,. The cameras 5a, 5b,... Are connected to the PC 6 via the communication cable 8.

  FIG. 2 is a block diagram showing a control mechanism of the inspection apparatus 7. The PC 6 includes a first monitor 9 and a second monitor 10 having a liquid crystal screen, input means 11 including a mouse and a keyboard, and a check procedure by voice. A sound generation means 12 such as a speaker for notification is provided, and a CPU 15 for executing various calculations and a storage means 13 for storing various data are incorporated. In addition, an actuator for operating the switch is connected to the switch of all the electrical components 2, 2,..., And the PC 6 is electrically connected to all the actuators via the interface 14. It has become.

  When each of the cameras 5a, 5b,... Captures the state of the inspection area R, the video information is transmitted to the PC 6 and displayed on the first monitor 9. FIG. 3 shows a state in which the video of the camera 5a located on the left front side of the inspection area R is displayed on the first monitor 9. By the image processing program stored in the storage means 13 of the PC 6, the horizontal direction of the screen is divided into 10 columns A, B, C... J on the first monitor 9, and the vertical direction of the screen is 1, 2, 3,... 10 lines, and the entire screen is divided into 10 × 10 = 100 areas (hereinafter, the position of each area). Are referred to as coordinates A-1, A-2. And the position of each electrical component 2,2, ... image | photographed with the camera 5a is in the state distributed to either of the above-mentioned each coordinates (It distributes automatically by control of PC6). The same setting is made for the cameras 5b, 5c, and 5d.

  Further, as shown in FIG. 4, the storage unit 13 of the PC 6 stores the types and specifications of the electrical components 2, 2... In association with the coordinates on the first monitor 9. For example, the left headlight (low beam) is stored in correspondence with the coordinates of A-1, and the left headlight (high beam) is stored in correspondence with the coordinates of A-2. Are stored in correspondence with the coordinates of B-8. Further, as shown in FIG. 5, the storage means 13 of the PC 6 stores the specifications of the electrical components 2, 2,... In correspondence with the specifications for each vehicle type (car number). In addition, the storage means 13 of the PC 6 stores the operation check order of all the electrical components 2, 2,... For each vehicle type (car number).

  Hereinafter, a method of checking the operating state of the automobile electrical parts 2, 2,... Set in the inspection area R using the above-described inspection device 7 will be described. FIG. 6 is a flowchart showing the contents of an operation check program executed by the PC 6 when checking the operation state of the electrical components 2, 2. When checking the operating state of the electrical components 2, 2,..., The worker first selects the vehicle type of the vehicle whose operating state is to be checked using the input means 11 of the PC 6 as an initial setting. As described above, when the vehicle type of the automobile is selected, the specifications of the electrical components 2, 2,... Required for the vehicle type are called from the storage means 13 and stored in the primary storage area.

  Thereafter, the operator uses the input means 11 of the PC 6 to turn on the switches of the electrical components 2, 2,... (S1). Further, as described above, the PC 6 is connected to the actuators for operating the switches of all the electrical components 2, 2,..., So that the operator can connect the electrical components 2, 2,.・ With reference to the layout of the electrical component 2, the user can select the predetermined electrical component 2 using a mouse and operate the keyboard without operating the electrical component 2 directly. Thus, the operation switch can be turned on.

  When the operator turns on the switch of the electrical component 2 where the change in the operating state of the headlight, the room light, etc. can be visually checked, the wire harnesses 1, 1. If the specification is normal, the electrical component 2 operates, so that the image displayed on the first monitor 9 of the PC 6 changes. For example, when the operator turns on the headlight (low beam) switch, the headlight is turned on if the specifications of the wire harnesses 1, 1,. When the headlight is turned on in such a manner, a state in which the light is turned on also appears at the coordinates A-1 of the first monitor 9 (S2).

  The PC 6 recognizes the change in the image as the change in the operation state by the function of the CPU 15. Then, in S3, based on “correspondence between type and specification of electrical component and coordinates and coordinates” stored in storage means 13, the type of electrical component 2 corresponding to coordinate A-1 and the specification of electrical component 2 are related. Recall data. Further, in the subsequent S4, it is verified whether or not the specifications of the called electrical component 2 match the specifications of the vehicle type that is initially set.

  And as a result of the above collation, when the specification of the electrical component 2 called in S3 matches the specification of the vehicle model that is initially set, it is determined as “pass” in S5, and the second monitor 10 indicates that. At the same time, the serial number of the wire harness 1, 1... Connected to the headlight and the result of the operation check are associated with each other and stored in the storage means 13 of the PC 6 in S6.

  On the other hand, as a result of the above collation, if the specification of the electrical component 2 called in S3 does not match the specification of the vehicle type that is initially set, it is determined as “fail” in S7, and the second monitor 10 In S6, the serial number of the wire harness 1, 1... Connected to the headlight and the result of the operation check are associated with each other and stored in the storage means 13 of the PC 6.

  In addition, for the electrical components 2, 2,... That are difficult to recognize the operating state in a bright place such as a room light, even if the operator turns on the switch, the image is displayed on the first monitor 9 of the PC 6. Hardly changes. Therefore, an auxiliary lamp (not shown) having a higher luminance than that of the electric component 2 is attached to such electric components 2, 2,... In conjunction with the operation of the electric component 2. Similar image processing is performed by the PC 6 on the basis of the video, and it is determined whether or not the operating state of the electrical component 2 is normal based on the operation check program, and the result is stored in the storage means 13 of the PC 6. Is done.

  On the other hand, for the electrical components 2, 2,... In which the change in the operating state of the audio equipment or the like is not grasped as the change in the visual information, even if the operator turns on the switch, it is displayed on the first monitor 9 of the PC 6. There is no change in the video. Therefore, for such electrical components 2, 2,..., A microphone (not shown) capable of detecting the sound generated by the electrical component 2 is attached, and based on the generated sound detected by the microphone, It is determined whether the operating state is normal.

  For example, when the electrical component 2 is an audio device, the sound generated by the microphone when the operator operates the display screen of the second monitor 10 to turn on the audio device is a predetermined volume. Is exceeded, it is judged as “pass”, the fact is displayed on the second monitor 10, and the serial numbers of the wire harnesses 1, 1. It is associated and stored in the storage means 13 of the PC 6.

  On the other hand, even if the audio device is turned on, if the microphone does not detect the sound generated at the predetermined volume, it is determined as “failed” and the fact is displayed on the second monitor 10 and is connected to the audio device. The serial numbers of the wire harnesses 1, 1... And the result of the operation check are associated and stored in the storage means 13 of the PC 6.

  Also, since it is difficult to obtain large electrical components such as engines, the voltage or current generated at the terminals of the wire harnesses 1, 1,. Based on the change in the value of the voltage or current, it is determined (predicted) whether or not the operating state when connected to the wire harness 1, 1,.

  For example, when the electrical component is an engine, a voltmeter is connected between the terminals of the connectors of the wire harnesses 1, 1. Then, when the operator operates the display screen of the second monitor 10 to virtually turn on the engine, if the measured voltage of the voltmeter exceeds a predetermined voltage value, “pass” Is displayed on the second monitor 10, and the serial number of the wire harness 1 connected to the engine and the result of the operation check are associated with each other and stored in the storage unit 13 of the PC 6. Is done.

  On the other hand, even if the engine is virtually turned on, if the voltmeter does not detect a voltage higher than the predetermined value, it is determined as “failed”, and the fact is displayed on the second monitor 10, and The serial numbers of the connected wire harnesses 1, 1... Are associated with the result of the operation check and stored in the storage means 13 of the PC 6.

  When checking the operating state of the electrical components 2, 2,... As described above, every time one electrical component 2 is checked, the electrical components 2, 2,... Stored in the storage means 13 of the PC 6 are checked. The order is referred to, and the voice generation means 12 guides the electrical components 2, 2... To be checked next by voice. Therefore, the operator can check all the electrical components 2, 2,... Without omission by checking the electrical components 2, 2,.

  According to the above-described operation inspection method, it is determined whether or not the operation state of each electrical component 2, 2,... Is normal based on the image processing of the images taken by the cameras 5a, 5b,. Since it is not necessary for a person to walk around the work area R and visually check the operating state of each electrical component 2, 2,..., Even one person can check the operating state accurately in a short time. In addition, since the data regarding the operating state is automatically taken into the PC 6, the data can be managed very easily and accurately.

  Further, for the room light or the like, the operating state is replaced by the lighting of the auxiliary lamp, and the operating state is checked based on the image processing of the lighting state. Therefore, the electrical component 2 is difficult to recognize the operating state in a bright place. Nevertheless, the operating state can be checked accurately.

  Furthermore, for audio equipment, sound generated by operation is captured by a microphone, and whether or not the operating state is normal is checked based on the captured audio data. Although the electric component 2 is difficult to grasp, the operating state can be accurately checked.

  Also, for engines, etc., it is difficult to obtain electrical components because it is checked whether the operating state is normal based on a change in the value of the voltage generated between the terminals of the wire harnesses 1, 1,. In spite of being 2, it is possible to accurately check (predict) whether or not the operation state when connected to the wire harness 1, 1.

  Furthermore, according to the operation inspection method described above, the operator can operate each electrical component 2, 2,... Only by operating the switch of each electrical component 2, 2,. It is possible to check the state without omission and without mistakes.

  Further, according to the above-described operation inspection method, all the electrical components 2, 2,... Can be operated by operating the PC 6 with the input means 11, so that the operator can connect each electrical component 2, 2,. Since it is not necessary to walk around the work place to operate the switch, the operation state can be easily checked by one person in a very short time.

  Note that the configuration of the operation inspection method of the present invention is not limited to the aspect of the above-described embodiment, and the configuration and configuration of the camera and the PC used as the inspection apparatus, and the PC when performing the operation check. The configuration of the program executed in the above can be changed as appropriate without departing from the spirit of the present invention.

  For example, the operation inspection method of the present invention is not limited to checking the operation state based on images taken by four cameras, but is activated based on images taken by three or less cameras or five or more cameras. You may check it. Further, the operation inspection method of the present invention is not limited to the method for checking the operating state of the engine based on the measured voltage of the voltmeter connected to the connector of the engine harness as in the above embodiment, but to the connector of the engine harness. It may be one that checks the operating state of the engine based on the measured current of the connected ammeter.

  Further, the operation inspection method of the present invention is not limited to the method of automatically inspecting the operation state of all the electrical components based on the image processing, the detection result of the sound volume, and the like, as in the above-described embodiment. It is also possible to automatically inspect only the operating state.

It is explanatory drawing which shows the mode of the operation | movement check of the electrical component of a motor vehicle. It is a block diagram which shows the control mechanism of an inspection apparatus. It is explanatory drawing which shows a mode that the image | video of the camera was projected on the monitor. It is explanatory drawing which shows the relationship between the classification and specification of each electrical component memorize | stored in the memory | storage means, and the coordinate on the monitor of PC. It is explanatory drawing which shows the relationship between the specification of each electrical component memorize | stored in the memory | storage means, and a specification. It is a flowchart which shows the content of the program run by PC when checking an operation state.

Explanation of symbols

1. Harness 2. Electric parts 5a to 5d Camera 6. PC
9 .. First monitor 10.. Second monitor 11 .. Input means 12 .. Voice generation means 13 .. Storage means

Claims (9)

An electrical component operation inspection method for connecting a plurality of electrical components to a wire harness for an automobile, operating a switch to operate those electrical components and inspecting the operating state thereof,
Taking a photograph of the operating state of at least some of the electrical components with a camera, and determining whether or not the operational state of the electrical components is normal based on image processing of the captured video,
A method for inspecting the operation of an electrical component, wherein the determination result is taken into a computer.   For some electrical components, the auxiliary lamp is turned on when the electrical component is activated, and the lighting state of the auxiliary lamp is captured by the camera, and the operating state is normal based on the image processing of the captured video. It is determined whether it exists, The operation | movement inspection method of the electrical component of Claim 1 characterized by the above-mentioned.   The sound generated by the operation of the electrical component is captured by a microphone for some of the electrical components, and whether or not the operating state is normal is determined based on the captured audio data. The operation inspection method of the electrical component described.   For some electrical components, the voltage or current generated at the connector terminal of a given wire harness is measured, and the operating state when connected to the wire harness is normal based on the value of the voltage or current It is determined whether it becomes. The operation | movement inspection method of the electrical component of Claim 1 characterized by the above-mentioned.   5. The electrical component according to claim 1, further comprising an input unit that takes in an operating state of the electrical component into a computer near a switch that operates at least a part of the electrical component. Operation inspection method.   5. An operation instruction of an electrical component switch is guided by voice, and an operation state of the electrical component corresponding to the switch is automatically taken into a computer by operating the switch based on the operation instruction. The operation | movement inspection method of the electrical component in any one of.   The operation inspection method for electrical components according to claim 1, wherein operation switches for a plurality of electrical components are collected at one place.   The operation inspection method for an electrical component according to any one of claims 1 to 4, wherein an operation of a switch of at least a part of the electrical component is performed by an actuator. An operation inspection program for use in the operation inspection method for electrical components according to claim 1,
A first step of determining whether or not the operating state of the electrical component is normal based on image processing of the video of the operating state of the electrical component captured by the camera;
And a second step of storing the result of the determination in a predetermined storage means.

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