JP2012233832A - Determination area generation device, waveform determination device, and determination area generation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To generate a common determination area for determining waveforms related to different portions of a determination-target signal in a temporal axis direction.SOLUTION: A process part performs: an extraction process of extracting plural data strings Dxa and Dxb having head waveform data Dw located at different positions on a temporal axis from waveform data stored in a storage part; an upper-limit data generation process of detecting waveform data whose data value is maximum from a head waveform data-side of the extracted plural data strings Dxa and Dxb to generate, as an upper-limit data string Dxmax, a data string constituted by the waveform data whose data value is maximum; a lower-limit data generation process of detecting waveform data whose data value is minimum from a head waveform data-side to generate, as a lower-limit data string Dxmin, a data string constituted by the waveform data whose data value is minimum; and an area generation process of generating a determination area A for a determination-target signal on the basis of the upper-limit data string Dxmax and the lower-limit data string Dxmin.

Description

  The present invention relates to a determination area creation device that creates a determination area for a determination target signal, a waveform determination device that performs waveform determination of a determination target signal using the determination area created by the determination area creation device, and a determination area creation method. It is.

  As this type of waveform determination device, the present applicant has already proposed a waveform determination device (waveform storage device) disclosed in Patent Document 1 below. This waveform determination apparatus includes an input unit that captures a signal as digitized waveform data, a data storage memory that stores the captured waveform data, a program memory that holds a necessary program in a readable manner, and a calculation control It comprises at least a central processing means (CPU) and input / output means including a display and an external storage device.

  In this waveform determination device, in a state where a plurality of non-defective waveform data fetched from a plurality of non-defective waveforms are respectively stored in the display screen corresponding area in the data storage memory, first, the start end side of the non-defective waveform data is represented by a boundary In addition, the end side is partitioned by another boundary line. As a result, a closed space as a display range is partitioned.

  Next, all the other waveform data storage areas that deviate from the maximum width in the vertical direction of the closed space are filled using a known filling function.

  Specifically, the portion other than the closed space in the waveform data storage area in the data storage memory is filled, and then stored separately in the waveform data storage area and the same pattern as the stored data. By taking an exclusive OR between the corresponding data and the back data, all the waveform lines located in the closed space as non-defective waveform data are erased. As a result, the stored data in the waveform data storage area is converted into data in which the closed space becomes a hollow closed space, and becomes image data in which the surroundings are filled and only the hollow closed space is white.

  Finally, a waveform determination area (hereinafter also referred to as “determination area”) is created (set) by reversing the entire image data in black and white. Therefore, according to this waveform determination device, it is possible to easily create (set) a waveform determination area including a plurality of non-defective waveforms.

Japanese Patent No. 4104468 (page 4-5, Fig. 1-4)

  However, this conventional waveform determination apparatus has the following problems to be improved. That is, in this waveform determination device, two common boundary lines are applied to a plurality of non-defective waveform data captured from a plurality of non-defective waveforms for a signal to be determined, and a plurality of non-defective waveform data is applied to each boundary. A waveform determination area for a portion (the same portion along the time axis direction) divided by each boundary line of the signal to be determined based on the waveform data of the divided portion in a plurality of non-defective waveform data. Creating.

  By the way, there is a demand for determining waveforms for different parts along the time axis direction in a signal to be determined using a common determination area. However, in the conventional waveform determination device described above, there is a problem to be solved that it is difficult to respond to this request because the determination area for the same part in the time axis direction in the signal to be determined is created. Existing.

  The present invention has been made to solve such a problem, and a determination area creation that can create a common determination area for determining waveforms of different parts along the time axis direction in a signal to be determined. The main object is to provide a device and a determination area creation method. Another main object is to provide a waveform determination device that performs waveform determination of a determination target signal using a determination area created by the determination area creation device.

  In order to achieve the above object, a determination area creating apparatus according to claim 1 is provided with a storage unit for storing waveform data obtained by sampling a determination target signal, and a determination area for the determination target signal based on the waveform data. A determination area creating apparatus including a processing unit to create, wherein the processing unit is a data string composed of continuous waveform data, and the top waveform data is located at a different position on the time axis. Extraction processing for extracting a plurality of data strings from the waveform data stored in the storage unit, and from the extracted plurality of data strings, the waveform data having the maximum data value is obtained from the top waveform data side. An upper limit data creation process for detecting and creating a data string composed of the maximum waveform data as an upper limit data string, and the plurality of extracted data strings Detecting a waveform data having a minimum data value from the top waveform data side, and generating a data string composed of the minimum waveform data as a lower limit data string, and the upper limit data string and And an area creation process for creating a determination area for the determination target signal based on the lower limit data string.

  The determination area creation device according to claim 2 is the determination area creation device according to claim 1, wherein the processing unit uses the upper limit data string as an upper limit line and the lower limit data string in the area creation process. A belt-like region as a lower limit line is created as the determination area.

  The determination area creation device according to claim 3 is the determination area creation device according to claim 1, wherein the processing unit has a constant value for the waveform data constituting the upper limit data string in the area creation processing. Data composed of data obtained by adding or subtracting a constant value to the waveform data constituting the lower limit data string, with the data string composed of data obtained by adding or subtracting as the upper limit line A band-like region having a row as a lower limit line is created as the determination area.

  The determination area creation device according to claim 4 is the determination area creation device according to claim 1, wherein the processing unit forms the upper limit data string and the lower limit data string corresponding to the waveform data. An intermediate data creation process for creating a data string composed of the waveform data located in the middle of the waveform data constituting the intermediate data string as an intermediate data string, and configuring the intermediate data string in the area creation process Data obtained by adding a constant value to the waveform data is a data string obtained by subtracting a constant value from the waveform data constituting the intermediate data string, with the upper limit line as the data string A band-like region having the data string to be configured as the lower limit line is created as the determination area.

  According to a fifth aspect of the present invention, a waveform determination apparatus executes waveform determination on the determination target signal using the determination area created by the determination area creation apparatus according to any one of the first to fourth aspects.

  The determination area creation method according to claim 6 is a determination area creation method for creating a determination area for the determination target signal based on waveform data obtained by sampling the determination target signal and stored in a storage unit. A plurality of data strings, each of which is composed of continuous waveform data and whose leading waveform data is located at different positions on the time axis, are extracted from the waveform data stored in the storage unit. And detecting the waveform data having the maximum data value from the top waveform data side from the extracted plurality of data sequences, and setting the upper limit data to the data sequence composed of the maximum waveform data From the upper limit data creation process created as a column and the extracted plurality of data columns, the waveform data with the minimum data value is the first waveform data side And a lower limit data creation process for creating a data string composed of the minimum waveform data as a lower limit data string, and a determination area for the determination target signal based on the upper limit data string and the lower limit data string The area creation process to be created is executed.

  7. The determination area creation apparatus according to claim 1 and the determination area creation method according to claim 6, wherein a plurality of data strings in which the top waveform data is located at different positions on the time axis are extracted from the waveform data stored in the storage unit. From the extracted data sequence, the upper limit data creation processing to create a data sequence composed of waveform data with the maximum data value as the upper limit data sequence from the extracted multiple data sequences, and the extracted multiple data sequences, A lower limit data creation process for creating a data string composed of waveform data having the smallest data value as a lower limit data string, and an area creation process for creating a judgment area for a judgment target signal based on the upper limit data string and the lower limit data string; Execute. Therefore, according to the determination area creating apparatus and the determination area creating method, it is possible to create a common determination area for different determination target parts along the time axis direction in the determination target signal.

  According to the determination area creating apparatus of claim 2, the processing unit creates, in the area creating process, a band-like region having the upper limit data string as the upper limit line and the lower limit data string as the lower limit line as the determination area. In addition, it is possible to easily create a determination area in which each determination target portion of the determination target signal having a normal waveform can be determined to be definitely good.

  Further, according to the determination area creating apparatus according to claim 3, the data constituted by data obtained by adding or subtracting a fixed value to the waveform data constituting the data string in the area creating process by the processing unit. In order to create, as a determination area, a band-shaped area having a lower limit line as a data string composed of data obtained by adding or subtracting a constant value to the waveform data that constitutes the upper limit line and the lower limit data string, A determination area having an arbitrary width can be created based on the upper limit data string and the lower limit data string.

  In the determination area creating apparatus according to claim 4, the processing unit intermediates a data string composed of waveform data located in the middle of the waveform data constituting the upper limit data string and the waveform data constituting the lower limit data string. While executing the intermediate data creation process to create as a data string, in the area creation process, the upper limit line is a data string composed of data obtained by adding a constant value to the waveform data constituting the intermediate data string, In addition, a band-like area having a data string formed by subtracting a certain value from the waveform data constituting the intermediate data string and having a lower limit line is created as a determination area.

  Therefore, according to this determination area creation device, it is easy to use a determination area that is a common determination area for different determination target portions along the time axis direction in the determination target signal and that has a constant width in the direction orthogonal to the time axis. Can be created.

  According to the waveform determination device of the fifth aspect, a plurality of determination target portions located at different positions on the time axis in the determination target signal are determined using the common determination area created as described above. can do.

1 is a block diagram illustrating a configuration of a waveform determination device 1. FIG. It is a wave form diagram of judgment object signals S1a and S1b as a reference signal. It is a wave form chart for explaining operation which extracts upper limit data sequence Dxmax and lower limit data sequence Dxmin. It is another waveform diagram for explaining the operation of extracting the upper limit data string Dxmax and the lower limit data string Dxmin. It is explanatory drawing for demonstrating the operation | movement which produces the determination area A. FIG. 6 is a waveform diagram for explaining a waveform determination operation for a determination target signal S1 using a determination area A. FIG. It is explanatory drawing for demonstrating the operation | movement which produces the other determination area A. FIG. It is explanatory drawing for demonstrating the operation | movement which produces the other determination area A. FIG.

  Hereinafter, embodiments of a determination area creation device, a waveform determination device, and a waveform area creation method will be described with reference to the accompanying drawings. In the following description, a waveform determination device that has a determination area creation function and also functions as a determination area creation device will be described as an example.

  First, the configuration of the waveform determination device 1 will be described with reference to FIG.

  As shown in the figure, the waveform determination apparatus 1 includes a measurement unit 2, an operation unit 3, a processing unit 4, a storage unit 5, and a display unit 6, and creates a determination area for the input determination target signal S1 and creates it. It is configured to be able to determine whether or not a part to be determined (determination target part W) in the determination target signal S1 is included in this determination area using the determined determination area.

  As an example, the measurement unit 2 includes an amplifier and an A / D converter (both not shown) for one channel. In addition, the measurement unit 2 converts the determination target signal S1 as an analog signal into waveform data Dw at a constant sampling period and outputs the waveform data Dw to the processing unit 4.

  The operation unit 3 includes a plurality of operation keys such as a scroll key, a selection key, various setting keys, and various command keys, and outputs operation data Dop indicating operation contents for each operation key to the processing unit 4.

  As an example, the processing unit 4 includes a CPU and a memory (not shown) and a memory (work memory or video memory). The processing unit 4 stores the waveform data Dw in the storage unit 5, and a determination area described later based on the waveform data Dw. The display area 6 displays the determination area generation processing for generating A, the waveform determination processing for the determination target portion W of the determination target signal S1 using the determination area A, and the processing contents and results of the determination area generation processing and waveform determination processing. Execute the display process to be displayed.

  In this example, as an example, the processing unit 4 monitors the level (voltage value) of the input waveform data Dw while inputting the waveform data Dw from the measurement unit 2 in the storage process, and sets a preset trigger condition ( As an example, when the level of the waveform data Dw satisfies a predetermined setting value (trigger level) upward (a condition that the waveform data Dw crosses upward)), a predetermined number of times or a predetermined number of data (in this example, As an example, waveform data Dw (for a predetermined time T) is input and stored in the storage unit 5.

  As an example, the storage unit 5 includes at least one of a RAM, a ROM, and an HDD (hard disk device), and stores area data Da indicating the determination area A for the determination target portion W described above. In addition, waveform data Dw is stored in the storage unit 5 by the processing unit 4.

  In this example, the display unit 6 includes a display device such as an LCD (Liquid Crystal Display). Moreover, the display part 6 is controlled by the process part 4, and displays the processing content in the determination area creation process and the waveform determination process, and the result of the process on the display screen.

  Next, a determination area creation method will be described together with the operation of the waveform determination apparatus 1.

  In this waveform determination apparatus 1, first, a determination area A for the determination target signal S1 is created, and then the waveform determination for the determination target signal S1 is performed using the determination area A.

  First, the creation operation of the determination area A by the waveform determination device 1 will be described. In this waveform determination device 1, when an operation is performed on the operation unit 3 and operation data Dop indicating operation contents indicating the start of determination area creation is output from the operation unit 3 to the processing unit 4, the processing unit 4. Performs storage processing and determination area creation processing. Thereby, the waveform determination apparatus 1 functions as a determination area creation apparatus, and creates the determination area A.

  First, in this storage process, the processing unit 4 executes a process of detecting whether or not the input waveform data Dw satisfies the trigger condition while inputting the waveform data Dw from the measurement unit 2. In this state, as shown in FIG. 2, a normal waveform determination target signal S1 (signal S1a indicated by a solid line) as a reference signal is input to the measurement unit 2. As a result, the waveform data Dw output from the measurement unit 2 satisfies the trigger condition at time t1. Therefore, the processing unit 4 inputs the waveform data Dw for time T from this time (time t1) from the measurement unit 2 and stores the waveform data in the waveform storage area of the storage unit 5 and ends the storage process.

  In this case, when the operation data Dop of the operation content indicating the start of creation of the determination area includes the number of times n of storing the waveform data Dw, the processing unit 4 transfers the waveform data Dw for time T to the storage unit 5. After the one-time storage is completed, the process of whether or not the trigger condition is satisfied is resumed. Therefore, as shown in FIG. 2, the processing unit 4 subsequently receives a new determination target signal S1 having a normal waveform as a reference signal (a signal S1b indicated by a broken line; a signal of the same type as the signal S1a). When the waveform data Dw output from the measurement unit 2 satisfies the trigger condition at time t2, the waveform data Dw for time T from this time (time t2) is input from the measurement unit 2, It is stored in another waveform storage area of the storage unit 5. The processing unit 4 executes this storage process n times (in this example, twice as an example) to complete the storage process. In this example, as an example, since the number of times of storage n is 2, the processing unit 4 stores the waveform data Dw for the time T for the two determination target signals S1 in each waveform storage area of the storage unit 5. Complete the storage process.

  Next, the processing unit 4 executes a determination area creation process. In this determination area creation process, the processing unit 4 first reads the waveform data Dw for the time T for the two determination target signals S1 stored in the storage unit 5 and is represented by each waveform data Dw. The signal waveforms (signal waveforms for time T) of the two determination target signals S1a and S1b are displayed on the screen of the display unit 6 in a state where the respective heads are aligned (the heads of the signal waveforms are matched and overlapped). As shown in Fig. 4, display along the time axis.

  Subsequently, the processing unit 4 executes an extraction process. In this extraction process, the processing unit 4 stores, in the storage unit 5, a plurality of data strings that are data strings composed of continuous waveform data Dw and whose top waveform data Dw is located at different positions on the time axis. Extraction processing is performed to extract from the waveform data Dw for the time T.

  Specifically, as shown in FIG. 3, the processing unit 4 uses a pair of boundary lines (markers) L1 for specifying a data string together with the signal waveforms of the determination target signals S1a and S1b. L2 is displayed on the screen of the display unit 6. Further, the processing unit 4 sets each boundary line L1, L2 as a time based on the operation content for the selection key (content indicating each position on the time axis of the boundary lines L1, L2 specified by the operation of the selection key). Translate individually along the axis to any position.

  Further, as shown in FIG. 3, the processing unit 4 is in a state where the determination target portion W at an arbitrary position in each determination target signal S1a, S1b is selected with an arbitrary width by the boundary lines L1, L2, for example, When the operation data Dop indicating the operation of the setting key is input from the operation unit 3, each boundary line L1 when the start waveform data Dw of each determination target signal S1a, S1b is set as the starting point (time zero). , L2 time ts (start time of determination target region W) and te (end time of determination target region W) are specified. Next, the processing unit 4 determines that it is included in a period defined by the specified both times ts and te (because it is the first specified time, hereinafter, also referred to as “time ts1” and “time te1”). The waveform data Dw constituting each determination target part W of the target signals S1a and S1b is represented by a data string (hereinafter referred to as a data string for the determination target part W1 of the determination target signal S1a). The data string for the determination target part W1 of the determination target signal S1b is also referred to as “data string Dxb1”. Subsequently, the processing unit 4 stores the times ts1, te1 and the extracted data strings Dxa1, Dxb1 in the storage unit 5 in association with each other. Thereby, the extraction process (first extraction process) of the data strings Dxa1 and Dxb1 for one determination target part W (hereinafter also referred to as “determination target part W1”) in each determination target signal S1a and S1b is completed.

  The processing unit 4 is described above until an operation is performed on, for example, a command key of the operation unit 3 and the operation data Dop indicating the operation content indicating that the operation unit 3 stops the extraction process is output to the processing unit 4. Repeat the extraction process. In this case, in the second and subsequent extraction processes, the processing unit 4 sets the widths of the boundary lines L1 and L2 to be the same as the widths in the first extraction process, and determines the determination target signals S1a and S1b. Extraction of data strings Dxa and Dxb for other determination target parts W is executed. When extracting the data strings Dxa and Dxb, each determination target part W is specified so that the top waveform data Dw of each data string Dxa and Dxb is located at a different position on the time axis.

  In this example, as an example, it is assumed that the processing unit 4 has input the operation data Dop indicating the operation content to stop the extraction process from the operation unit 3 when the above extraction processing is executed three times in total. Thereby, as shown in FIG. 4, the processing unit 4 specifies the determination target part W2 in the second extraction process in addition to the above-described determination target part W1, thereby obtaining the time ts2 of each of the boundary lines L1 and L2. , Te2, a data string composed of continuous waveform data Dw of each determination target part W2 of the determination target signals S1a and S1b included in the period specified by te2 (a data string Dxa2 for the determination target part W2 of the determination target signal S1a, And the data string Dxb2) for the determination target portion W2 of the determination target signal S1b is extracted. Further, the processing unit 4 stores the times ts2 and te2 and the extracted data strings Dxa2 and Dxb2 in the storage unit 5 in association with each other.

  Further, as illustrated in FIG. 4, the processing unit 4 specifies the determination target portion W3 in the third extraction process, thereby determining the period included in the time periods ts3 and te3 of the boundary lines L1 and L2. A data string composed of continuous waveform data Dw of each determination target part W3 of the target signals S1a and S1b (a data string Dxa3 for the determination target part W3 of the determination target signal S1a and a determination target part W3 of the determination target signal S1b) Data string Dxb3) is extracted. Further, the processing unit 4 stores the times ts3, te3 and the extracted data strings Dxa3, Dxb3 in the storage unit 5 in association with each other.

  The processing unit 4 inputs the operation data Dop indicating the operation content to stop the extraction process from the operation unit 3, stops the above extraction process, and then executes the alignment process. In this alignment process, as shown in FIG. 5, the processing unit 4 extracts the extracted data strings Dxa1, Dxb1, data strings Dxa2, Dxb2, and data strings Dxa3, Dxb3 (hereinafter referred to as “data string Dxa”, Also referred to as “data string Dxb”, or simply “data string Dx” when these are not distinguished, the first waveform data Dw is aligned (the first waveform data Dw in each data string Dx is matched). In a state of being overlapped), it is stored in another waveform storage area of the storage unit 5. In this case, since the data strings Dxa1, Dxb1, the data strings Dxa2, Dxb2, and the data strings Dxa3, Dxb3 are extracted by the boundary lines L1, L2 defined to have the same width, the waveform data at the tail of each data string Dw is also stored in a complete state.

  Next, as illustrated in FIG. 5, the processing unit 4 performs upper limit data creation processing on the data strings Dxa1, Dxb1, the data strings Dxa2, Dxb2, and the data strings Dxa3, Dxb3 stored in the storage unit 5. In the upper limit data creation process, the processing unit 4 starts from the head waveform data Dw side with respect to the waveform data Dw constituting the data strings Dxa1, Dxb1, the data strings Dxa2, Dxb2, and the data strings Dxa3, Dxb3 aligned at the head. A data string composed of waveform data Dw having the maximum data value by sequentially detecting the waveform data Dw having the maximum data value (waveform voltage in this example) along the time axis direction up to the waveform data Dw at the end. Is created as the upper limit data string Dxmax.

  Subsequently, as illustrated in FIG. 5, the processing unit 4 executes a lower limit data creation process for the data strings Dxa1, Dxb1, the data strings Dxa2, Dxb2, and the data strings Dxa3, Dxb3 stored in the storage unit 5. . In this lower limit data creation process, the processing unit 4 starts from the top waveform data Dw side with respect to the waveform data Dw constituting the data strings Dxa1, Dxb1, the data strings Dxa2, Dxb2, and the data strings Dxa3, Dxb3 aligned at the head. By sequentially detecting the waveform data Dw having the minimum data value (waveform voltage) up to the trailing waveform data Dw along the time axis direction, the data string composed of the waveform data Dw having the minimum data value is determined as the lower limit data. Created as a column Dxmin.

  Note that a configuration in which the alignment process is not executed can be employed as a pre-process for the above-described upper limit data creation process and lower limit data creation process. In this configuration, the processing unit 4 reads the waveform data Dw of the plurality of extracted data strings Dx from the storage unit 5 as the upper limit data creation processing, and sets the waveform data Dw having the maximum data value as the top waveform data. A data string composed of waveform data Dw that is detected sequentially from the Dw side and has the maximum data value is created as an upper limit data string Dxmax. Further, as the lower limit data creation process, the processing unit 4 reads the waveform data Dw of the plurality of extracted data strings Dx from the storage unit 5 and sets the waveform data Dw having the minimum data value to the top waveform data Dw side. Are sequentially detected, and a data string composed of waveform data Dw having a minimum data value is created as a lower limit data string Dxmin.

  Subsequently, the processing unit 4 executes an area creation process. In this area creation process, as shown in FIG. 5, the processing unit 4 performs the determination on the determination target signal S1 based on the detected upper limit data string Dxmax and lower limit data string Dxmin (specifically, each determination of the determination target signal S1). An area creation process for creating a determination area A (for the target parts W1, W2, and W3) is executed.

  Specifically, in the area creation process, the processing unit 4 sets the upper limit data string Dxmax as the upper limit line Lmax (the line configured by connecting the waveform data Dw constituting the upper limit data string Dxmax is set as the upper limit line Lmax), Further, a belt-like area (a hatched area in FIG. 5) is defined as a lower limit data string Dxmin as a lower limit line Lmin (a line formed by connecting each waveform data Dw constituting the lower limit data string Dxmin as a lower limit line Lmin). A determination area A is created and stored in the storage unit 5. Thereby, the area creation process ends, and the determination area creation process is completed.

  Next, after the determination area creation process is completed, the processing unit 4 executes a waveform determination process.

  In this waveform determination process, the processing unit 4 first executes the storage process described above, inputs the waveform data Dw for the determination target signal S1 from the measurement unit 2, and starts from the waveform data Dw that satisfies the trigger condition for a time T. Minute waveform data Dw is stored in the waveform storage area of the storage unit 5.

  Next, the processing unit 4 starts the waveform data Dw (first waveform data Dw) satisfying the trigger condition as shown in FIG. 6 with respect to the waveform data Dw for the time T stored in the storage unit 5. A plurality of determination target parts W obtained by extracting the data strings Dxa and Dxb (in this example, the data strings Dxa1 and Dxb1, the data strings Dxa2 and Dxb2, and the data strings Dxa3 and Dxb3 in this example) at the time of creating the determination area A as (time zero) In this example, the waveform determination is performed by applying the determination area A to the determination target portions corresponding to the three determination target portions W1, W2, and W3.

  Specifically, the processing unit 4 firstly starts the start time ts and the end time te (time ts1, te1, time ts2, te2, time ts3) of each determination target site W1, W2, W3 stored in the storage unit 5. , Te3) and the elapsed time from the starting point for each waveform data Dw for time T described above, the waveform data Dw (included in the period defined by times ts1, te1 of each waveform data Dw ( Waveform data Dw of a determination target part (also referred to as determination target part W1) corresponding to the determination target part W1, and waveform data Dw (determination target) included in a period defined by times ts2 and te2 of each waveform data Dw The waveform data Dw of the determination target part (also referred to as the determination target part W2) corresponding to the part W2, and the time ts3 and te3 of the waveform data Dw. Waveform data Dw included in the period is to identify (also referred to as determination target portion (determination target region W3 corresponding to the determined target region W3) waveform data Dw of).

  Next, the processing unit 4 compares the waveform data Dw for each of the specified determination target portions W1, W2, and W3 with the determination area A, and the determination target portion in which all the waveform data Dw is included in the determination area A. Is determined that the waveform is good, and it is determined that the waveform is unsatisfactory with respect to a determination target portion where some waveform data Dw is not included in the determination area A. Further, the processing unit 4 stores the determination result in the storage unit 5 in association with each time ts and te (only time ts may be used).

  For the determination target signal S1 shown in FIG. 6, the processing unit 4 determines that the waveform is good for the determination target portion W2 in which all the waveform data Dw is included in the determination area A, and some of the waveforms For the determination target portions W1 and W3 in which the data Dw is not included in the determination area A, it is determined that the waveform is defective.

  Finally, the processing unit 4 causes the display unit 6 to display the determination result for each determination target portion W. Thereby, the waveform determination process is completed.

  As described above, in the waveform determination device 1 having the function as the waveform area generation device and the determination area generation method executed by the waveform determination device 1, the first waveform is the data string Dx composed of continuous waveform data Dw. An extraction process for extracting a plurality of data strings Dx in which the data Dw is located at different positions on the time axis from the waveform data Dw stored in the storage unit 5, and a maximum data value from the plurality of extracted data strings Dx Waveform data Dw is detected from the top waveform data Dw side, and an upper limit data creation process for creating a data string composed of the largest waveform data Dw as an upper limit data string Dxmax, and a plurality of extracted data strings Dx To detect the waveform data Dw having the minimum data value from the top waveform data Dw side, and the data composed of the waveform data Dw having the minimum data value. The run and lower data creation processing for creating a lower data string Dxmin, the area forming processing for creating a judgment area A for determination target signal S1 based on the highest data sequence Dxmax and lower data string Dxmin.

  Therefore, according to the waveform determination apparatus 1 and the determination area generation method having the function as the waveform area generation apparatus, different determination target portions W (in the present example, the above 3 as an example in the determination target signal S1). A common determination area A for two determination target parts W1, W2, W3) can be created. Further, a plurality of determination target portions W located at different positions on the time axis in the determination target signal S1 can be determined using this common determination area A.

  Further, according to the waveform determination device 1 and the determination area generation method having the function as the waveform area generation device, the processing unit 4 sets the upper limit data string Dxmax as the upper limit line Lmax and the lower limit data string Dxmin in the area generation process. Since the band-like region having the lower limit line Lmin as the determination area A is created, it is determined that each determination target portion W (determination target portion W1, W2, W3) of the determination target signal S1 having a normal waveform is definitely good. The obtained determination area A can be easily created.

  In the above example, the determination area A is created based on the waveform data Dw of the two determination target signals S1a and S1b having a normal waveform as a reference. However, one determination target signal S1 having a normal waveform is generated. A configuration in which the determination area A is created based on the waveform data Dw of the normal waveform can be adopted, or the determination area A is created based on the waveform data Dw of any number of three or more judgment target signals S1 of normal waveforms It is also possible to adopt a configuration that does this.

  In the above example, in the area creation process, a band-like region having the upper limit data string Dxmax as the upper limit line Lmax and the lower limit data string Dxmin as the lower limit line Lmin is created as the determination area A. FIG. As described above, data obtained by adding or subtracting a predetermined constant value (or a constant value input from the operation unit 3 to the processing unit 4) Dc to the waveform data Dw constituting the upper limit data string Dxmax. A band-like region having a data string formed as an upper limit line Lmax and a data string formed by adding or subtracting the constant value Dc to or from the waveform data Dw constituting the lower limit data string Dxmin as a lower limit line Lmin It is also possible to adopt a configuration in which (a hatched area) is created as the determination area A. According to this configuration, it is possible to create a determination area A having an arbitrary width (a width along a direction orthogonal to the time axis direction).

  In this case, in the example shown in FIG. 7, the constant value Dc is added to the waveform data Dw constituting the upper limit data string Dxmax to obtain the upper limit line Lmax, and the constant value Dc is derived from the waveform data Dw constituting the lower limit data string Dxmin. Is used as the lower limit line Lmin to widen the band-like area defined by the upper limit data string Dxmax and the lower limit line Lmin to create the determination area A. Although not shown, the upper limit data string Dxmax is configured. The constant value Dc is added to the waveform data Dw to obtain an upper limit line Lmax, and the waveform data Dw constituting the lower limit data string Dxmin is added to form a lower limit line Lmin to obtain an upper limit data string Dxmax and a lower limit line Lmin. A configuration is adopted in which the judgment area A is shifted upward with respect to the belt-like region defined in It is also possible.

  Conversely, the constant value Dc is subtracted from the waveform data Dw constituting the upper limit data string Dxmax to obtain the upper limit line Lmax, and the constant value Dc is subtracted from the waveform data Dw constituting the lower limit data string Dxmin. As the line Lmin, a configuration in which the determination area A is shifted downward with respect to the band-shaped region defined by the upper limit data string Dxmax and the lower limit line Lmin may be employed. Further, the constant value Dc is subtracted from the waveform data Dw constituting the upper limit data string Dxmax to obtain the upper limit line Lmax, and the constant value Dc is added to the waveform data Dw constituting the lower limit data string Dxmin to lower the lower limit. As the line Lmin, it is possible to adopt a configuration in which the determination area A is created by narrowing the width of the band-shaped region defined by the upper limit data string Dxmax and the lower limit line Lmin. Also, the constant value Dc to be added to or subtracted from the upper limit data string Dxmax and the constant value Dc to be added to or subtracted from the waveform data Dw constituting the lower limit data string Dxmin can be defined as different values.

  According to these configurations, a determination area A having an arbitrary width can be created based on the created upper limit data string Dxmax and lower limit data string Dxmin.

  Further, in the area creation process, after the upper limit data creation process and the lower limit data creation process are completed, the processing unit 4 corresponds to the waveform data Dw constituting the upper limit data string Dxmax and the waveform data Dw as shown in FIG. An intermediate data creation process for detecting a data string composed of waveform data Dw positioned in the middle of the waveform data Dw constituting the lower limit data string Dxmin to be detected as an intermediate data string Dxmid is executed, and thereafter an area creation process is executed. A configuration can also be adopted. In this case, in the area creation process, the processing unit 4 sets the data string composed of data obtained by adding the constant value Dd to the data constituting the intermediate data string Dxmid as the upper limit line Lmax, and the intermediate data A band-like area (a hatched area) having a data string composed of data obtained by subtracting the constant value Dd from the waveform data Dw constituting the string Dxmid as a lower limit line Lmin is created as the determination area A.

  In this case, the constant value Dd is defined such that both the upper limit data string Dxmax and the lower limit data string Dxmin are included in the determination area A as shown in FIG. It should be noted that the constant value Dd to be added when the upper limit line Lmax is obtained and the constant value Dd to be subtracted when the lower limit line Lmin are obtained can be defined to be the same or different from each other.

  Even when this configuration is adopted, different determination target portions W along the time axis direction in the determination target signal S1 in the same manner as the waveform determination device 1 and the determination area generation method having the function as the waveform area generation device described above. A common determination area A for (determination target parts W1, W2, W3) can be created. Furthermore, according to this configuration, it is possible to easily create the determination area A having a constant width in the direction orthogonal to the time axis. Further, each determination target portion W for the determination target signal S1 can be determined using this common determination area A.

1 Waveform judgment device
2 Measurement unit
3 Operation part
4 processing section
5 storage unit
6 Display section
A judgment area Da area data Dw waveform data Dx data string Dxmax upper limit data string Dxmin lower limit data string Lmax upper limit line Lmin lower limit line S1 judgment target signal

Claims (6)

A storage unit for storing waveform data obtained by sampling the determination target signal;
A determination area creating apparatus comprising a processing unit that creates a determination area for the determination target signal based on the waveform data,
The processor is
Extraction processing for extracting from the waveform data stored in the storage section a plurality of data strings, each of which is a data string composed of the continuous waveform data and whose leading waveform data is located at different positions on the time axis When,
An upper limit for detecting the waveform data having the maximum data value from the extracted waveform data from the top waveform data side and creating a data sequence composed of the maximum waveform data as the upper limit data sequence from the extracted data sequences Data creation process,
A lower limit for detecting a waveform data having a minimum data value from the first waveform data side from the extracted plurality of data strings and creating a data string composed of the minimum waveform data as a lower limit data string Data creation process,
A determination area creation device that executes an area creation process for creating a determination area for the determination target signal based on the upper limit data string and the lower limit data string.   The determination area creating apparatus according to claim 1, wherein, in the area creating process, the processing unit creates a band-like region having the upper limit data string as an upper limit line and the lower limit data string as a lower limit line as the determination area.   In the area creation process, the processing unit uses a data string formed by adding or subtracting a constant value to or from the waveform data constituting the upper limit data string as an upper limit line, and the lower limit data 2. The determination area creating apparatus according to claim 1, wherein a band-like region having a lower limit line as a data string composed of data obtained by adding or subtracting a constant value to the waveform data constituting the string is created as the determination area. .   The processing unit generates intermediate data from the waveform data that is positioned between the waveform data that constitutes the upper limit data sequence and the waveform data that constitutes the lower limit data sequence corresponding to the waveform data. An intermediate data creation process for creating a column is executed, and in the area creation process, a data string composed of data obtained by adding a fixed value to the waveform data constituting the intermediate data string is defined as an upper limit line. And a band-shaped region having a lower limit line as a data string composed of data obtained by subtracting a constant value from the waveform data constituting the intermediate data string is created as the determination area. Judgment area creation device.   A waveform determination device that performs waveform determination on the determination target signal using the determination area created by the determination area creation device according to claim 1. A determination area creating method for creating a determination area for the determination target signal based on waveform data obtained by sampling the determination target signal and stored in a storage unit,
Extraction processing for extracting from the waveform data stored in the storage section a plurality of data strings, each of which is a data string composed of the continuous waveform data and whose leading waveform data is located at different positions on the time axis When,
An upper limit for detecting the waveform data having the maximum data value from the extracted waveform data from the top waveform data side and creating a data sequence composed of the maximum waveform data as the upper limit data sequence from the extracted data sequences Data creation process,
A lower limit for detecting a waveform data having a minimum data value from the first waveform data side from the extracted plurality of data strings and creating a data string composed of the minimum waveform data as a lower limit data string Data creation process,
A determination area creation method for executing an area creation process for creating a determination area for the determination target signal based on the upper limit data string and the lower limit data string.

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