JP3977867B1 - Vehicle repair history inspection system and computer program - Google Patents

Abstract

Provided is an inspection system capable of efficiently and accurately detecting a repair history of an automobile.
This is an inspection system that determines the presence or absence of repair history of automobiles, and stores the reference value of the coating film thickness at specific outer plate parts and skeleton parts of the automobiles for each car model, year, mileage, and region. And reading out a first reference value corresponding to the vehicle to be inspected from the storage means based on the vehicle type, year, mileage and area of the vehicle to be inspected. A comparing means for comparing the first reference value with a measured film thickness value obtained by measuring the means with the film thickness measuring means for the specific outer plate part and the skeleton part of the vehicle to be inspected; Determining means for determining that the automobile to be inspected has a repair history when there is a measured film thickness value having an error of a certain ratio or more with the first reference value based on the comparison result in the comparing means; .
[Selection] Figure 1

Description

The present invention relates to an inspection system and a computer program for inspecting a repair history of an automobile.

  When a specialist trades in a car as a used car, the repair history of the car is inspected to assess the trade-in price.

  In order to accurately inspect the repair history of such automobiles, skilled assessment ability based on considerable experience is required, and if inspection is performed by an inspector with low inspection ability, the repair history that should be detected is overlooked. As a result, a high purchase price may be assessed. In this case, if the repair history is discovered after trade-in, the sale price must be set below the purchase price in some cases, resulting in significant damage to the purchaser.

  Under such circumstances, when the inspection capability is low, an evaluation value lower than the actual value is often calculated, and it is difficult to accurately evaluate the asset of the automobile owner.

  On the other hand, in order for an inspector to acquire an accurate inspection capability of a repair history, it takes a considerable number of years, and it is difficult to increase the efficiency of the processing process for trade-in assessment.

As described in Patent Document 1 and Patent Document 2, many proposals related to automobile assessment have been made so far, but no proposal for solving the above-described problems has been made.
JP 2004-094302 A JP 2004-206610 A

  In view of the above situation, an object of the present invention is to provide an inspection system capable of efficiently and accurately detecting the repair history of an automobile.

The present invention for solving the above problems is an inspection system for determining the presence or absence of a repair history of an automobile,
A storage means for storing a reference value of a coating film thickness in a specific outer plate portion and a skeleton portion of the vehicle for each vehicle type, year, mileage, and region,
Reading means for reading out, from the storage means, a first reference value corresponding to the vehicle to be inspected from the storage unit, based on the vehicle type, year, mileage, and area of the vehicle to be inspected;
A comparison means for comparing the first reference value with the measured film thickness value obtained by measuring the specific outer plate part and the skeleton part of the vehicle to be inspected by the film thickness measuring means;
Determining means for determining that the automobile to be inspected has a repair history when there is a measured film thickness value having an error of a certain ratio or more with the first reference value based on the comparison result in the comparing means; It is characterized by that.

  The specific outer plate part includes at least one of an automobile roof, a step, and a quarter, and the specific skeleton part includes an automobile side member, a first member, a front pillar, a core support, an inner It is preferable that at least one of a panel, a floor member, a toe board, a center pillar, a floor, a wheel house, a quarter inner, a trunk floor, and a rear side member is included.

  According to the present invention, it is possible to provide an inspection system that can efficiently and accurately detect the repair history of an automobile.

It is a figure which shows an example of a structure of the test | inspection system corresponding to embodiment of invention. It is a flowchart of the process corresponding to embodiment of invention. It is a figure which shows the data structure of the reference | standard film thickness data corresponding to embodiment of invention. It is a figure which shows an example of the test | inspection site | part in the motor vehicle 10 to be examined.

  Embodiments of the invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a diagram illustrating an example of a configuration of an inspection system corresponding to an embodiment of the present invention. In FIG. 1, reference numeral 101 denotes a CPU which controls the inspection system 100 using programs and data stored in a RAM (Random Access Memory) 102 and a ROM (Read Only Memory) 105 and performs an inspection corresponding to the present invention. Process. Reference numeral 102 denotes a RAM which includes an area for reading the inspection processing program stored in the internal storage device 107 and information stored in the database 108, and also includes a work area used when the CPU 101 executes various processes.

  Reference numeral 103 denotes an input unit that receives an input from an inspector who inspects the automobile 10 to be inspected, which is a user of the inspection system 100, and includes an keyboard and a mouse. A communication I / F (interface) 104 functions as an I / F for connecting to a network such as the Internet.

  Reference numeral 105 denotes a film thickness meter for measuring the film thickness of the coating applied to the automobile to be inspected. As this film thickness meter, for example, “Dual Scope MP0R” manufactured by Fisher Instruments Inc. can be used. A ROM 106 stores a program (for example, a boot program) that controls the entire inspection system 100. Reference numeral 107 denotes a display unit as a display screen, which includes a CRT or a liquid crystal screen.

  Reference numeral 108 denotes an internal storage device which is mainly composed of a hard disk, and stores a program for performing inspection processing corresponding to the flowchart shown in FIG. 2 and various application data. The data stored here is read out to the RAM 102 as necessary. Reference numeral 109 denotes a database, which stores reference film thickness data 110 for performing inspection based on the measured value of the film thickness in the film thickness meter 105. Specifically, the reference film thickness data 110 stores the reference film thickness data of the vehicle body of the candidate for inspection by vehicle type, year, mileage, and region. Reference numeral 111 denotes a bus connecting the above-described units.

  In the configuration of the inspection system 100 as described above, in the present embodiment, the inspection process of the repair history of the automobile 10 to be inspected is performed. The inspection processing is performed by comparing the measurement result of the film thickness value of the painted portion of the vehicle in the film thickness meter 105 with the corresponding film thickness value data stored in the reference film thickness data stored in the database 109. ,Execute.

  The technical background of the present invention for verifying the presence / absence of repair history using the film thickness value will be described below.

  First of all, although the painting of general automobiles has undergone various processes, although the thickness of the painting is different between the part that can be seen from the outside of the car and the part that can not be seen such as inside the bonnet, The reference value of thickness can be obtained statistically according to the region. On the other hand, when the vehicle is damaged due to an accident or the like, repair work is performed. As a result, the thickness of the coating tends to be thicker than the reference value.

  Such a change in the thickness of the coating is caused by the work content in the restoration process. The general repair process includes the following processes.

  First, in the first step, sheet metal is performed. Sheet metal is made by a craftsman using a hammer or a batting board to pull out the panel. This sheet metal work is performed by using as many of the conventional parts as possible without changing parts as much as possible in consideration of cost.

  Next, in the second step, a base work for painting is performed. Specifically, after putting a putty on a sheet metal panel, it is dried until completely cured. Thereafter, the surface is chamfered with a paper file or the like.

  Further, in the third step, color matching is performed. Toning is an operation of blending colors in accordance with the color of the body of an automobile, particularly the color of the surrounding area where restoration has been performed. Since the painting of automobiles changes over time depending on the storage conditions from the time of a new car, each unit has a slightly different color, and the original paint cannot be used as it is. Therefore, it is necessary to perform such color matching so that the repaired portion is not noticeable.

  Finally, in the fourth step, the repaired portion is painted using the prepared paint, and the surface is polished after the paint is completely dried.

  As described above, in the coating in the fourth step, the paint is applied to the place where the putty is applied in the second step. Through such a process, the film thickness value becomes larger than the value at the time of a new vehicle or the value at the time of unrestored. For example, the film thickness value, which was 90 microns (μm) at the time of a new vehicle, may increase to 150 microns through the above repair process.

  In the present invention, it is possible to determine whether or not the repair has been performed based on the change from the reference value of the film thickness. However, in this embodiment, “repair” to be finally detected is defined as follows.

  That is, when energy is applied to the body of an automobile due to a large impact, thereby damaging the skeleton (frame) of the body and repair is performed, it is determined that “repair is present”. The damage to the skeleton of the vehicle body corresponds to a fracture rather than a scratch or a cut in humans.

  In the case of an automobile, the structure of the vehicle body can be distinguished into an outer plate part that can be visually recognized from the outside and an inner skeleton part. FIG. 4 is a diagram for explaining the outer plate portion and the skeleton portion. In FIG. 4, the outer plate portion includes, for example, a bonnet 401, a fender 402, a roof 403, a step 404, a quarter 405, a back panel 406, a door 407, and the like.

  Further, the skeleton part includes, for example, a side member 411, a first member 412, a front pillar 413, a core support 414, an inner panel 415, a floor member 416, a toe board 417, a center pillar 418, a floor 419, a wheel house 420, a quarter inner. 421, a trunk floor 422, a rear side member 423, and the like.

  Of these, the skeletal part forms the skeleton that supports the engine, and at the same time, carries an occupant / load and plays an important role in resisting vibration, load, and impact during travel. If this skeletal site is damaged and deformed or repaired, its performance is spoiled and the above-mentioned role may not be sufficiently achieved.

  In addition, the skeletal part also has a function of absorbing shock when an automobile has an accident, and once the accident occurs, it is difficult to maintain the performance of the deformed skeletal part even when repaired It is believed that. Therefore, a vehicle having a repair history that has repaired the damaged skeletal part has a significant value depreciation, and tends to avoid repair history not only in the industry but also in consumers.

  Thus, what is important in the assessment at the time of trade-in of an automobile is to discover whether or not the skeleton has been damaged in the past. The presence or absence of this damage is determined based on the value of the film thickness value measured using a film thickness meter in the present invention.

  In this embodiment, the side member 411, the first member 412, the front pillar 413, the core support 414, the inner panel 415, the floor member 416, the toe board 417, the center pillar 418, the floor 419, the wheel house 420, which constitute the skeleton part, If any of the quarter inner 421, the trunk floor 422, and the rear side member 423 has an error of a certain ratio or more with the reference film thickness value, it is assumed that the skeleton has been damaged in the past and has been repaired. The vehicle is determined as a repair history vehicle.

  In addition, regarding the roof 403, step 404, or quarter 405 of the outer plate parts, when the film thickness value has an error of a certain ratio or more with the reference film thickness value, the skeleton part is damaged in the past, and repair is possible. The vehicle is determined to be a repair history vehicle as having been performed. This is because a failure requiring repair to the location is considered to affect the skeleton. For example, the repair of the roof is performed for the purpose of repairing the damage caused by the car turning over. It is clear that a car reversal accident is damaging the skeleton.

  Hereinafter, an example of the inspection process for determining whether or not the skeleton has been damaged will be described. FIG. 2 is a flowchart of the process. The processing corresponding to the flowchart of FIG. 2 is realized by the processing program stored in the internal storage device 108 being read into the RAM 102 and executed by the CPU 101.

  In FIG. 2, in step S <b> 201, input of vehicle information of the automobile 10 to be inspected is received from an inspector who is a system user. Specifically, information on the vehicle type, model year, travel distance, and region is received.

  Next, in step S202, based on the vehicle information received in step S201, reference film thickness data corresponding to the vehicle type, year, travel distance, and region is read from the reference film thickness data 110 in the database 109 to the RAM 102. .

  The data structure of the reference film thickness data 110 is as shown in FIG. FIG. 3 is a diagram illustrating an example of the data structure of the reference film thickness data 110.

  In FIG. 3, the reference film thickness data is first classified for each vehicle type 301. Further, each vehicle type 301 is further classified by year 302. In addition, each year 302 is further classified by the travel distance 303. Then, the vehicle is classified according to the area 304 where the car was used.

  The reason why the vehicle type 301 and the year type 302 are classified as described above is that, basically, automobiles have different film thicknesses depending on the vehicle type and year type. Further, the travel distance 303 and the area 304 are factors related to the aging of the film thickness. For example, the longer the travel distance, the thinner the film thickness tends to be from the time of a new vehicle, and the climate varies from region to region, so the change in film thickness tends to vary depending on the climate.

  Further, as the reference film thickness values registered for each classification, the roof 403, the step 404, the reference film thickness value 305 of the quarter 405 as the outer plate part, the side member 411, the first member 412, the front part as the skeleton part. The reference film thickness values 306 of the pillar 413, the core support 414, the inner panel 415, the floor member 416, the toe board 417, the center pillar 418, the floor 419, the wheel house 420, the quarter inner 421, the trunk floor 422, and the rear side member 423 are registered. The The parts registered as the reference film thickness values 305 and 306 are merely examples, and may not include all of the above, and may include other outer plate parts and skeleton parts other than the above. May be.

  These reference film thickness values 305 and 306 are statistically obtained by collecting and accumulating the film thickness values of locations where restoration has not been performed, for each vehicle type, by year, mileage, and region. be able to.

  As described above, when the reference film thickness data 110 is used, the reference film thickness values 305 and 306 of specific outer plate parts and skeleton parts used for the inspection are determined according to the vehicle type 301, the year 302, the travel distance 303, and the region 304. And can be narrowed down.

  In subsequent step S <b> 203, the film thickness value of the location corresponding to the reference film thickness value included in the reference film thickness data of the automobile 10 to be inspected is acquired using the film thickness meter 105. Specifically, the measurement is performed on the roof 404 and step 405 for the outer plate portion, and the side member 411 and the core support 414 for the skeleton portion, and the film thickness value is acquired. The film thickness value obtained by the measurement is temporarily stored in the RAM 102.

  In the subsequent step S204, the measured film thickness value is compared with the reference film thickness value at the location where the film thickness value is acquired. In this comparison, if the measured film thickness value includes a reference film thickness value and a measured value that does not belong to an error range of, for example, less than ± 5%, the measured value is determined to be an abnormal film thickness value. To do.

  If there is an abnormal film thickness value (“YES” in step S204), the process proceeds to step S205, and the automobile 10 to be inspected is determined as a “repair history vehicle”. On the other hand, when there is no abnormal film thickness value (“NO” in step S204), the process proceeds to step S206, and the automobile 10 to be inspected is determined as a “non-repair history vehicle”.

  In the subsequent step S207, the determination result in step S205 or S206 is stored in the internal storage device 108 together with the vehicle information input in step S201, and the process ends.

  As described above, according to this embodiment, based on the value of the film thickness value at a predetermined location of the vehicle to be inspected, it is determined whether or not the vehicle is a repair history vehicle in which the skeleton has been damaged in the past. Can be determined.

  Further, the above processing (for example, processing according to the diagram shown in the above embodiment) is stored as a program in a computer-readable storage medium such as a CD-R, ROM, DVD-ROM, MO, etc. By causing the computer to read (install or copy) the stored program, the computer can perform the above processing. Therefore, it is obvious that this storage medium is also within the scope of the present invention.

Claims (3)

An inspection system for determining whether a vehicle has a repair history,
A storage means for storing a reference value of a coating film thickness in a specific outer plate portion and a skeleton portion of the vehicle for each vehicle type, year, mileage, and region,
Reading means for reading out, from the storage means, a first reference value corresponding to the vehicle to be inspected from the storage unit, based on the vehicle type, year, mileage, and area of the vehicle to be inspected;
A comparison means for comparing the first reference value with the measured film thickness value obtained by measuring the specific outer plate part and the skeleton part of the vehicle to be inspected by the film thickness measuring means;
Determining means for determining that the automobile to be inspected has a repair history when there is a measured film thickness value having an error of a certain ratio or more with the first reference value based on the comparison result in the comparing means; Inspection system characterized by that. The specific skin portion includes at least one of a roof, a step, and a quarter of an automobile,
The specific skeleton part includes a car side member, a first member, a front pillar, a core support, an inner panel, a floor member, a toe board, a center pillar, a floor, a wheel house, a quarter inner, a trunk floor, and a rear side member. The inspection system according to claim 1, wherein at least one of them is included. A computer program for causing a computer to function as the inspection system according to claim 1.

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