JP2008232665A - Pressure analysis system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pressure analysis system of an inexpensive constitution capable of using a scanner in addition to a dedicated scanner. <P>SOLUTION: The pressure analysis system 1 uses a conversion table of density values and pressure values indicating the relation between lightness values and pressure values acquired by reading pressure measuring films by a reference scanner to convert lightness values acquired by reading pressure measuring films by a scanner other than the reference scanner into pressure values. The pressure analysis system 1 is provided with a calibration sheet 18 for calibrating lightness values acquired by reading the pressure measuring films by the scanner other than the reference scanner; a calibration coefficient preparation means for preparing a calibration coefficient for calibration using values acquired by reading the calibration sheet by the scanner other than the reference scanner; and a scanner value calibration means for calibrating lightness values acquired by reading the pressure measuring films by the scanner other than the reference scanner through the use of the calibration coefficient. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a pressure analysis system, and more particularly, to a pressure analysis system that analyzes a pressure distribution on a contact surface or a pressurization site using a pressure measurement film that detects pressure by coloring a pressurization site.

  Conventionally, in order to measure the pressure applied between contact surfaces (contact pressure), a pressure measurement film has been developed in which only a portion where pressure is applied is colored. For example, “Prescale” (trade name) sold by FUJIFILM Corporation is known.

  This pressure measurement film is prepared by applying a microencapsulated color former and a developer on a support, and applying pressure to this to break the microcapsule and adsorb the color developer to the developer. The color is developed into a predetermined color (for example, red) by a chemical reaction. There are two types of pressure measurement films: one with a color former and a developer applied to one support (mono sheet), and the other with a support applied to two different supports (two-sheet type). There is.

  Since the pressure measurement film differs in the number of microcapsules that are destroyed depending on the applied pressure, and the color density differs, the size of the applied pressure and the pressure distribution can be analyzed by observing this color density. Can do.

  For example, the pressure measurement film such as the prescale is cut into a shape necessary for measurement, and the pressure measurement film thus cut is sandwiched between the measurement points and pressurized, and then the pressure measurement film is taken out. Is colored red and the concentration changes according to the applied pressure, so that the pressure distribution can be judged visually. However, in order to obtain the pressure value more accurately, it is necessary to measure and analyze with a densitometer.

  In view of this, a pressure conversion device that measures the color density of a pressure measuring film that has been colored by pressurization with a densitometer and converts the measured density value into a pressure value has been conventionally known (see, for example, Patent Document 1). However, since the density is measured by scanning the pressure measuring film with a densitometer, there is a problem that the whole image of the pressure distribution cannot be grasped because it can be measured only at the point.

  On the other hand, in recent years, for example, “FPD-9210” (trade name) sold by FUJIFILM Business Supply Co., Ltd. is known as a pressure analysis system that performs multi-faceted pressure analysis systems. ing.

This consists of dedicated software for analyzing pressure (a personal computer with built-in) and a dedicated CCD scanner that reads the color density. Dedicated CCD scanners apply color to the prescale (pressure measurement film) described above. The pressure value at each part is read by comparing with the SP curve indicating the relationship between the measured concentration value (S; Scanner) and the pressure value (P; Pressure) held in the system. Is displayed on the screen in shades of red or full color.
JP-A-1-134220

  However, in the pressure analysis system such as “FPD-9210”, since the color density of the prescale (pressure measurement film) that has developed color is read by a dedicated scanner, the density reading error between the scanner bodies is eliminated. Therefore, it is necessary to measure the reading density of the tiles inside the scanner and store the data in each device, which causes a problem that the system is expensive.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a pressure analysis system that can be used even by a user's scanner that is not a dedicated scanner and is an inexpensive system.

  In order to achieve the above object, the invention according to claim 1 uses the density value-pressure value conversion table showing the relationship between the lightness value and the pressure value read by the scanner serving as a reference for the pressure measurement film. A pressure analysis system that converts a lightness value read by a scanner other than the reference scanner into a pressure value, and the pressure measurement film is applied to the density value-pressure value conversion table. The calibration is performed using a calibration sheet for calibrating the lightness value read by a scanner other than the reference scanner and the value read by the calibration sheet for the scanner other than the reference scanner. Calibration coefficient preparation means for preparing a calibration coefficient for the measurement, and the pressure measurement film is scanned by a scanner other than the reference scanner. To provide a pressure analysis system characterized by comprising a scanner value calibration means for calibrating using the calibration coefficient brightness value read in.

  Accordingly, even a scanner other than a scanner serving as a reference dedicated to the pressure analysis system can be used in the pressure analysis system, an expensive dedicated scanner is not required, and the system can be configured at low cost.

  According to a second aspect of the present invention, the calibration sheet for calibration includes a plurality of light-colored patches and dark-colored patches arranged at predetermined locations, and the light-colored patches and dark-colored patches are used as the reference. And a two-dimensional bar code including data obtained by reading with a scanner.

  Further, as shown in claim 3, the calibration coefficient preparation means, the data obtained by reading the light color patch and the dark color patch of the calibration sheet for calibration with a scanner other than the reference scanner, The calibration coefficient is prepared from data obtained by reading the light color patch and the dark color patch in the two-dimensional barcode with the reference scanner.

  In this way, a non-reference scanner can be easily calibrated by simple means.

  Further, as shown in claim 4, in the pressure analysis system according to any one of claims 1 to 3, the scanner other than the reference scanner is a scanner corresponding to the system. It has a corresponding scanner discriminating means for judging whether or not.

  According to a fifth aspect of the present invention, the corresponding scanner determination unit performs the determination using a corresponding scanner definition file in which a corresponding scanner prepared in advance is registered.

  This makes it possible to easily determine whether or not any commercially available scanner can be used in this pressure analysis system.

  According to a sixth aspect of the present invention, there is provided the pressure analysis system according to any one of the first to fifth aspects, further comprising a scanner deterioration determination unit that determines deterioration of a scanner other than the reference scanner. It is characterized by having.

  By determining the deterioration of the scanner, it is possible to always accurately analyze the pressure.

  Moreover, as shown in claim 7, in the pressure analysis system according to any one of claims 1 to 6, further comprising a calibration sheet deterioration determination unit that determines deterioration of the calibration sheet for calibration. It is characterized by having.

  By determining the deterioration of the calibration sheet for calibration, it is possible to always accurately analyze the pressure.

  As described above, according to the present invention, even a scanner other than a scanner serving as a reference dedicated to the pressure analysis system can be used in the pressure analysis system, so that an expensive dedicated scanner is not required and the system is inexpensive. Can be configured.

  Hereinafter, a pressure analysis system according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a schematic configuration diagram showing an embodiment of a pressure analysis system according to the present invention.

  As shown in FIG. 1, the pressure analysis system 1 according to the present embodiment mainly includes a commercially available scanner 14 connected to a commercially available personal computer 10 and a USB cable 12, and pressure recorded on a CD or the like for reading by the personal computer 10. A dedicated software 16 for analysis and a calibration sheet 18 for enabling a commercially available scanner 14 to be used in this system are constituted.

  As described above, the pressure analysis system 1 is exclusively used for the pressure analysis dedicated software 16 and the calibration sheet 18 for automatic calibration for enabling the use of the commercially available scanner 14. As the personal computer 10 and the scanner 14, commercially available products owned by the user can be used.

  The pressure analysis dedicated software 16 is installed in the personal computer 10 and includes the SP curve (SP table) described above. The SP curve is used to convert the lightness value read by the scanner 14 into a pressure value. The SP curve is a dedicated CCD scanner for “FPD9210” that is used as a prototype (reference) during manufacturing in a factory. Since it is created in accordance with the reading value characteristic of the (reference scanner), it is necessary to calibrate each scanner device when actually converting the density value into the pressure value using the SP curve. A calibration sheet 18 is used to perform this calibration.

  FIG. 2 shows an enlarged view of the calibration sheet 18. The calibration sheet 18 is A4 size, and is manufactured by printing or ink jet with a constant pattern. The calibration sheet 18 has a design as shown in FIG. 2, and the dark color patch 20 and the light color patch 22 are arranged at the four corners and the center of the calibration sheet 18. A two-dimensional bar code 24 is arranged at the center of the calibration sheet 18. The two-dimensional bar code 24 is a dot recorded in a black frame, such as an average value of values obtained by reading the dark color patches 20 and the light color patches 22 arranged at the five locations with a reference scanner. Contains various information.

  FIG. 3 shows information recorded on the two-dimensional barcode 24. As shown in FIG. 3, the two-dimensional barcode 24 is obtained by using the reference scanner to obtain the average scanner value dS0B (4 bytes) at five locations of the dark patch 20 and the average scanner value dS0A (4 bytes) at five locations of the light patch 22. ), Reserved area (6 bytes), date information (year since 2000) (1 byte), date information (manufacturing date) (1 byte), checksum (2 bytes), 18 bytes in total Is included.

  The calibration sheet 18 calibrates the brightness value read by the commercially available scanner 14 so that it matches the SP curve of the pressure analysis system 1, thereby enabling the commercially available scanner 14 to be used in the pressure analysis system 1. Is for. In this case, as will be described in detail later, the entire calibration sheet 18 is read by the scanner 14, and each patch (dark color patch 20, light color patch 22) portion and 2D barcode 24 portion are extracted and used.

  Hereinafter, as a function of the pressure analysis system 1 of the present embodiment, a mechanism until a brightness value obtained by reading a prescale (pressure measurement sheet) in which a pressurized portion is colored by a scanner 14 is converted into a pressure value will be described with reference to FIG. And it demonstrates along the flowchart of FIG.

  FIG. 4 shows a flow from reading the calibration sheet 18 with the scanner 14 to creating information necessary for calibration. FIG. 6 shows the actual reading of the prescale in which the pressurization portion is colored. 5 shows a flow of obtaining a pressure value using an SP curve (SP table) after calibrating the obtained value using the calibration coefficient prepared in the step shown in FIG.

  First, in step S100 in FIG. 4, a scanner-compatible model inspection is performed.

  The scanner-compatible model inspection is performed to inspect whether or not the scanner 14 currently connected to the system is a model compatible with this system prior to pressure analysis.

  Information on the scanner corresponding to this system is recorded in advance in a corresponding scanner definition file held by the pressure analysis system 1.

  FIG. 5 shows an example of the corresponding scanner definition file. The corresponding scanner definition file shown in FIG. 5 includes items such as a vendor ID representing a sales company, a product ID representing a product model, a dark color patch prescribed value, and a light color patch prescribed value. The corresponding scanner definition file is described in a text format, one line per scanner model, and a recorded value is expressed as a 2-byte integer value in decimal, and each item is separated by a comma.

  The scanner-compatible model inspection is performed by comparing the vendor ID and product ID actually acquired from the scanner 14 connected to the pressure analysis system 1 with the vendor ID and product ID recorded in the corresponding scanner definition file.

  The vendor ID and product ID of the scanner 14 may be acquired by the personal computer 10 automatically recognizing when the scanner 14 is connected to the personal computer 10 or may be input separately by the user.

  If the vendor ID and product ID acquired from the scanner 14 matches one of the vendor ID and product ID recorded in the corresponding scanner definition file held by the system, it is determined that the scanner 14 is a compatible scanner. If there is no match, it is determined that the scanner is not compatible.

  As a result of the determination, if it is determined that the scanner 14 is not a compatible scanner model, an error is displayed, and subsequent processing such as calibration sheet fetching is stopped.

  Next, the calibration sheet 18 is read by the scanner 14 in step S110. The scanner value to be read is acquired as a 2-byte integer value in the range of 0 to 65535.

  Next, in step S120, a scanner deterioration inspection is performed. In the scanner deterioration inspection, the scanner average value of the light color patch 22 set in the five fixed position areas of the calibration sheet 18 read by the scanner 14 and the light color patch recorded in the corresponding scanner definition file described above. This is done using the default value.

  That is, the scanner deterioration is determined by the following determination formula (1) using the average value of the five light color patches 22 of the calibration sheet 18 read by the scanner 14 and the light color patch specified value of the corresponding scanner definition file. Calculate the value.

(Judgment value) = {(light color patch prescribed value) − (scanner average value of 5 light color patches)}
/ (Light color patch specified value) (1)
However, in the expression (1), the value in parentheses {} is assumed to be an absolute value.

  The determination value of scanner deterioration obtained by the determination formula (1) is compared with predetermined determination reference values k1 and k2, and determination is performed as follows.

(1) Normal when (determination value) <k1 (2) Warning when k1 ≦ (determination value) <k2 (3) Scanner error when k2 ≦ (determination value) For example, k1 = 0.05 and k2 = 0.1 are preferably exemplified.

  At this time, when (judgment value) <0.05, that is, when the difference between the light color patch specified value and the average value of the scanners at the 5 light color patches is less than 5% of the light color patch specified value, this scanner. 14 is determined to be normal.

  Further, when 0.05 ≦ (judgment value) <0.1, that is, the difference between the light color patch specified value and the scanner average value of the five light color patches is 5% or more and less than 10% of the light color patch specified value. At this time, it is determined that the scanner 14 is somewhat deteriorated and a calibration alarm is determined, and a warning is displayed. However, in this case, only the warning is performed, and the subsequent new creation process is continued.

  Further, when 0.1 ≦ (specified value), that is, when the difference between the light color patch specified value and the average value of the scanners at the five light color patches is 10% or more of the light color patch specified value, the scanner 14 is deteriorated. As a result, it is determined that there is a scanner error, an error is displayed, and processing after the calibration sheet is loaded is stopped.

  Next, in step S130, a calibration sheet deterioration inspection is performed. This is to inspect whether the calibration sheet 18 has deteriorated due to tanning, oil stains, or the like due to changes over time.

  The calibration sheet deterioration inspection is performed using the values of the individual patch areas of the calibration sheet 18 read by the scanner 14 and the average value of the five patch areas.

  The scanner average values of the five fixed installation areas of the dark color patch 20 and the light color patch 22 of the calibration sheet 18 read by the scanner 14 are obtained. On the other hand, the maximum and minimum of the scanner values at each of the five locations are obtained. Then, for each density, the determination value of the calibration sheet deterioration is obtained by the following determination formula (2) using the maximum, minimum, and average values of five locations.

(Judgment value) = (Maximum-Minimum) / (Average value of 5 locations) (2)
When the determination value of the calibration sheet deterioration thus obtained exceeds 0.1, that is, when the difference between the maximum and minimum of each density exceeds 10% of the average value of five locations, It is determined that the calibration sheet 18 has deteriorated as a calibration sheet error.

  In the case of a calibration sheet error, a warning is displayed, the calibration sheet information is not adopted, and the processing after the calibration sheet loading is stopped.

  If it is determined that the calibration sheet 18 has not deteriorated, the average value of the five light color patches 22 obtained above is stored in the memory as a variable dWhite. On the other hand, the average value of the five dark patches 20 obtained above is stored in the memory as a variable dGray.

  Next, in step S140, the barcode information is analyzed.

  As described above, in the two-dimensional barcode 24 of the calibration sheet 18, information verified by the “FPD9210” original device (reference scanner) at the time of manufacture of the calibration sheet 18 is recorded (FIG. 3). reference).

  The two-dimensional barcode 24 is analyzed to extract necessary information. First, the average value of five fixed position areas obtained by reading the light color patch 22 of the calibration sheet 18 with the reference scanner which is the “FPD9210” master is obtained as a variable dSO. Next, an average value of five fixed position areas obtained by reading the dark color patch 20 of the calibration sheet 18 with the reference scanner which is the “FPD9210” original device is acquired as a variable dS0B.

  Next, in step S150, the calibration coefficient preparation is completed. That is, the average value dWhite of the five light color patches 22 obtained by reading the calibration sheet 18 with the scanner 14, the average value dGray of the five dark color patches 20, and the light color obtained from the two-dimensional barcode 24. Four values of the average value dS0A of the patch and the average value dS0B of the dark color patch 20 obtained from the two-dimensional barcode 24 are stored in the memory as calibration value information (calibration coefficient) until the application is terminated.

  Next, a process of creating new data (calibrating) for actually reading the prescale and analyzing the pressure value will be described with reference to the flowchart of FIG.

  In this new data creation process, the prescale where the pressure portion is colored is read with a scanner, and the read scanner value is calibrated using a calibration coefficient prepared in advance, and then the SP table (SP curve) is used. It converts to pressure value data.

  The processing in the flowchart shown in FIG. 6 is based on the assumption that the calibration information construction processing shown in the flowchart in FIG. 4 described above has already been performed. That is, the calibration coefficient has already been prepared, and the pressure value can be obtained from the SP table (SP curve) of the system using the scanner value read by the scanner 14 connected to the system. Yes.

  First, in step S200 of FIG. 6, the prescale where the pressure portion is colored is read by the scanner 14. The scanner value is acquired as a 2-byte integer value in the range of 0 to 65535.

  Next, in step S210, the scanner value read above is calibrated.

  This calibration is carried out in order to match a slightly different tendency for each scanner with the characteristics of the reference scanner that is the original device for creating the SP table.

  Calibration is performed by converting all the scanner values in the range of 0 to 65535 read above. The calibration is performed based on the next calibration information determined when the calibration sheet is read.

  That is, as calibration information, the average value dWhite of the calibration sheet reading light color patch, the average value dGray of the calibration sheet reading dark color patch, the average value dS0A of the light color patch obtained from the two-dimensional barcode 24, and the two-dimensional barcode. The calibration scanner value (correction value) for the scanner value is calculated by the following equation (3) using the average value dS0B of the dark color patches acquired from 24.

(Calibration scanner value) = dS0B + {(dS0A-dS0B) / (dWhite-dGray)}
X {(scanner value) -dGray} (3)
The calibration scanner value obtained by calibrating all the scanner values read from the prescale by the scanner 14 by this equation (3) is 16-bit data.

  By discarding the lower byte of the 16-bit data and adopting the upper 8 bytes as the lower 8-byte value, the 16-bit data is converted into 8-bit data.

  Next, in order to match this 8-bit data with the specifications of the SP table, the magnitude relation of values is switched. This is because the data acquired from the scanner 14 has a larger scanner value as the brightness is brighter, and the data value decreases from 255 to 0 as it moves from the brighter (lighter density) side to the darker (darker density) side. On the other hand, in the pre-scale color development, the greater the pressure, the higher the density and the larger the numerical value, so that the increase relationship is reversed between the scanner value and the pressure value.

  Therefore, in order to reverse the magnitude relationship of the (calibration) scanner value, it is converted to the reciprocal of 255.

  This conversion is performed according to the following equation (4), whereby the SP table scanner value is obtained.

(SP table scanner value) = 255- (calibration scanner value) (4)
By this conversion, the calibration scanner value becomes the same as the magnitude relationship between the pressure values, and the larger the value, the larger the pressure value.

  Next, in step S220, the SP table scanner value converted from the calibration scanner value is converted into a pressure value using the SP table.

  The SP table is a table of SP curves, and is a conversion table for converting scanner values into pressure values by calculation.

  The SP curve directly shows the relationship between the scanner value (density) and the pressure value, an example of which is shown in FIG. As shown in FIG. 7, the SP curve shows the scanner value (density) on the vertical axis and the pressure value on the horizontal axis, and displays the relationship between them. Since this relationship varies depending on the temperature and humidity, FIG. 7 shows SP curves for three different temperature and humidity conditions.

  The SP table is a table for converting a scanner value into a pressure value by calculation. The SP table is composed of three pieces of information of 256 1-byte integer SP tables, 2 byte integers Multitiplier, and 2 byte integers Dividers. .

  The SP table scanner value finally obtained above is used as a subscript when reading the SP table.

  The SP table is searched with this SP table scanner value, and the corresponding multitiplier and visor are read. Then, using the read value, the pressure value is calculated by the following equation (5).

Pressure value = (SP table scanner value) × Multitiplier / Divisor (5)
In this way, the scanner value obtained by reading the prescale in which the pressurization portion has developed color is finally converted into a pressure value.

  As described above, in the pressure analysis system of the present embodiment, the scanner value is calibrated using the calibration sheet. Therefore, even a user scanner that is not a dedicated scanner can be used, and the pressure is inexpensive. An analysis system can be constructed.

  By the way, when the prescale is read by the scanner, it is necessary to securely press the prescale. However, in this embodiment, a non-dedicated scanner can also be used. is there. Therefore, a dedicated lid for securely pressing the prescale may be used.

  FIG. 8 shows an example of a dedicated lid. 8A is a perspective view showing the upper surface side, FIG. 8B is a perspective view showing the lower surface side upside down, and FIG. 8C shows a state where the dedicated lid is installed on the scanner. It is a perspective view.

  As shown in FIG. 8 (a), the dedicated lid 26 has a handle 26b for the user to hold on the upper surface of the frame 26a with an edge around the flat plate, and at the four corners of the frame 26a. A positioning member 27 is installed to securely fix the scanner.

  Further, as shown in FIG. 8B, a plate-like sponge 28 is disposed inside the frame body 26a in order to press the prescale.

  As shown in FIG. 8C, when the dedicated lid 26 is installed on the scanner 14, the two positioning members 27a of the positioning members 27 are brought into contact with the corners of the scanner 14 and the other two positioning members 27b. A positioning member 27 is formed so as to be in contact with the side surface of the scanner 14.

  Note that the size of the dedicated lid 26 may be variable according to the size of the scanner. For example, the frame body can be slid into two parts, with the member that holds the internal sponge 28 and the frame as separate members, and the frame is slid to fit both sides of the scanner to fit the size of the scanner. It may be.

  Alternatively, a dedicated lid 26 of several sizes may be prepared corresponding to the size of the scanner.

  FIG. 9 shows a system configuration of the pressure analysis system of the present embodiment.

  As described above, the present pressure analysis system 1 is composed of the personal computer 10 having the dedicated software for pressure analysis, the scanner 14 and the calibration sheet 18 for calibration. As shown in FIG. The corresponding scanner discriminating means 30, scanner deterioration judging means 32, calibration sheet deterioration judging means 34, calibration coefficient preparing means 36, scanner value calibrating means 42, pressure value converting means 44, and SP table 46 are held. Further, display means 38 such as a liquid crystal display is connected to the personal computer 10.

  The scanner 14 is not a dedicated scanner but a commercially available scanner owned by the user. Before the prescale 40 is read, the calibration sheet 18 is first read in order to prepare calibration information.

  The data of the calibration sheet 18 read by the scanner 14 is sent to the corresponding scanner discriminating means 30, and the corresponding scanner discriminating means 30 performs a scanner compatible model inspection.

  The corresponding scanner discriminating unit 30 uses the corresponding scanner definition file 31 held in the system to determine whether or not the connected scanner 14 is a model corresponding to this system. If the result of determination is that the scanner 14 is not a compatible model, an error is displayed on the display means 38.

  The scanner deterioration determination means 32 is for inspecting scanner deterioration when the scanner 14 is a compatible model. As described above, the above equation (1) is obtained by using the scanner average value of the five light color patches 22 of the calibration sheet 18 read by the scanner and the light color patch prescribed value of the corresponding scanner definition file 31. This is performed based on the determination value of scanner deterioration obtained by (1).

  For example, when the determination value is smaller than 0.05, the scanner 14 is normal, when the determination value is 0.05 or more and smaller than 0.1, it is determined as a warning, and when the determination value is 0.1 or more, it is determined as a scanner error. . If the result of the inspection is a warning or a scanner error, the fact is displayed on the display means 38.

  The calibration sheet deterioration determining unit 34 determines deterioration due to changes with time such as sunburn and oil stains of the calibration sheet 18. As described above, this is because the calibration sheet deterioration obtained by the above equation (2) using the values of the five individual patch areas of the calibration sheet 18 read by the scanner 14 and the average value of the five scanners is used. The determination value is used. For example, if this determination value is 0.1 or less, it is determined to be OK, and if it exceeds 0.1, it is determined that a calibration sheet error has occurred. If the result of determination is that the calibration sheet has deteriorated, a calibration sheet error is displayed on the display means 38.

  The calibration coefficient preparation means 36 calculates the average value dWhite of the calibration sheet reading light color patch, the average value dGray of the calibration sheet reading dark color patch, the average value dS0A of the light color patch obtained from the two-dimensional barcode 24, and the two-dimensional bar. The average value dS0B of the dark patch acquired from the code 24 is stored in the memory as calibration information.

  By preparing the calibration information by the above means, a non-dedicated scanner 14 can be used in this system. If this calibration information is prepared, the pressure analysis can be performed by reading the prescale 40 immediately without reading the calibration sheet 18 and preparing the calibration information unless the scanner 14 is replaced.

  The scanner value of the prescale 40 read by the scanner 14 is sent to the scanner value calibration means 42, and calibration is performed by the calibration information prepared above.

  The calibrated scanner value is converted into a pressure value by the pressure value conversion means 44 using the SP table 46.

  The data converted into the pressure value is displayed on the display means 38. This display can be performed in various ways, and the pressure can be indicated numerically for each location or can be displayed in a predetermined color corresponding to the pressure value.

  Although the pressure analysis system of the present invention has been described in detail above, the present invention is not limited to the above examples, and various improvements and modifications may be made without departing from the scope of the present invention. Of course.

It is a schematic structure figure showing one embodiment of a pressure analysis system concerning the present invention. It is explanatory drawing which shows a calibration sheet. It is explanatory drawing which shows the information shown by the two-dimensional barcode. It is a flowchart which shows the flow which reads a calibration sheet | seat and produces calibration information. It is explanatory drawing which shows an example of a corresponding | compatible scanner definition file. It is a flowchart which shows the flow which reads a prescale and performs a pressure analysis. It is explanatory drawing which shows the example of a SP curve. It is explanatory drawing which shows the exclusive cover with respect to a scanner, (a) is a perspective view from upper direction, (b) is a perspective view from the downward direction, (c) is a perspective view which shows the state which installed the exclusive cover in the scanner. It is a block diagram which shows the system configuration | structure of this pressure analysis system.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Pressure analysis system, 10 ... Personal computer, 12 ... USB cable, 14 ... Scanner, 16 ... Software for exclusive use of pressure analysis (CD which recorded), 18 ... Calibration sheet, 20 ... Dark color patch, 22 ... Light color patch, 24 ... 2D barcode, 26 ... dedicated lid, 30 ... corresponding scanner discrimination means, 32 ... scanner deterioration judgment means, 34 ... calibration sheet judgment means, 36 ... calibration coefficient preparation means, 38 ... display means, 40 ... prescale 42 ... Scanner value calibration means 44 ... Pressure value conversion means 46 ... SP table

Claims (7)

Lightness value read by the scanner other than the reference scanner using the density value-pressure value conversion table showing the relationship between the lightness value read by the reference scanner and the pressure value. A pressure analysis system that converts pressure into pressure value,
A calibration sheet for calibration for calibrating the lightness value read by the scanner other than the reference scanner so that the pressure measurement film can be applied to the density value-pressure value conversion table;
Calibration coefficient preparation means for preparing a calibration coefficient for performing the calibration using a value read from the calibration sheet for calibration by a scanner other than the reference scanner;
A scanner value calibrating means for calibrating the lightness value read by the scanner other than the reference scanner using the calibration coefficient;
A pressure analysis system comprising:   The calibration sheet for calibration includes a plurality of light color patches and dark color patches arranged at predetermined positions, and data obtained by reading the light color patches and dark color patches with the reference scanner. The pressure analysis system according to claim 1, further comprising a two-dimensional barcode.   The calibration coefficient preparation means includes data obtained by reading the light color patch and the dark color patch of the calibration sheet with a scanner other than the reference scanner, and the light color in the two-dimensional barcode. The pressure analysis system according to claim 2, wherein the calibration coefficient is prepared from data obtained by reading the patch and the dark color patch with the reference scanner.   The pressure analysis system according to claim 1, further comprising: a corresponding scanner determination unit that determines whether a scanner other than the reference scanner is a scanner compatible with the system. A pressure analysis system comprising:   The pressure analysis system according to claim 4, wherein the corresponding scanner determination unit performs the determination using a corresponding scanner definition file in which a corresponding scanner prepared in advance is registered.   The pressure analysis system according to any one of claims 1 to 5, further comprising scanner deterioration determination means for determining deterioration of a scanner other than the reference scanner.   The pressure analysis system according to any one of claims 1 to 6, further comprising calibration sheet deterioration determination means for determining deterioration of the calibration sheet for calibration.

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