JP4459321B2 - Water quality measuring device, water quality display method, and storage medium recording water quality display program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a water quality measuring device, a water quality display method, and a storage medium recording a water quality display program.
[0002]
[Prior art]
  Conventionally, destruction of water resources has been taken up as one of the global environmental problems. For this reason, it is necessary to accurately measure the state of water pollution for the purpose of water quality conservation. When measuring the pollution status of water quality, determine the measurement point for the water area such as the lake to be measured, insert the probe of the analyzer at this point, and analyze various components while moving in the water depth direction Had gone by.
[0003]
  FIG. 9 shows a configuration of a conventional water quality measuring device 20. In this figure, 21 is an analysis operation unit, 22 is a water quality analyzer, and 23 is a display unit for displaying water quality data acquired from the water quality analyzer 22. The display unit 23 displays the measured water quality as a graph. In the illustrated example, the horizontal axis indicates the concentration of dissolved oxygen (DO), the vertical axis indicates the water depth, and the curve L indicates each measured value d. It represents a change. That is, by looking at the display unit 23, it is possible to know the change in the amount of dissolved oxygen with respect to the water depth at the measured point.
[0004]
[Problems to be solved by the invention]
  However, while the water quality measuring apparatus 20 described above can understand the relationship between the water depth and the water quality at one point, there is a problem that it is difficult to compare water quality data at a plurality of points. That is, when the relationship between the water depth and the water quality at a plurality of points is displayed on the same graph, it is necessary to draw a plurality of curves L on the same graph, making it difficult to distinguish the data at each point. .
[0005]
  Therefore, in practice, it was impossible to compare the measured values at a plurality of points, and it was impossible to know the overall water quality distribution in the water area that was the measurement target area. However, knowing the water quality status at multiple points as the distribution of the water area is important for water quality conservation, and the user may feel inconvenienced in this regard.
[0006]
  The present invention has been made in consideration of the above-mentioned matters, and the object of the present invention is to effectively visualize the water quality data and display the measured value of the water quality with respect to the water depth at each point. It is an object of the present invention to provide a water quality measuring device, a water quality display method, and a storage medium recording a water quality display program that can be easily compared and examined.
[0007]
[Means for Solving the Problems]
  In order to achieve the above-mentioned object, the water quality measurement device of the present invention includes at least each of water quality data including water quality measurement values measured at predetermined time intervals while moving in the water depth direction at each of a plurality of points in the measurement target region. A water quality analyzer that memorizes along with point location information and water depth,
  The water quality measurement value measured by the water quality analyzer is calculated for each water depth in the direction of the water depth, and equipped with an arithmetic processing unit that performs color coding for each water quality measurement value. It consists of an analysis operation unit equipped with a display unit that displays colors according to the display color corresponding to the size of the measured value.The
  The analysis operation unit includes an operation unit main body for operating a water quality analyzer, and the arithmetic processing unit is connected to the operation unit main body so that the water quality data stored in the storage unit in the water quality analyzer can be sucked out. Further, the arithmetic processing unit interpolates between measured values of water quality measured at each predetermined time interval to create interpolation data in which water depth is divided into predetermined intervals, A function that averages each measured value of the interpolation data in the depth direction at the predetermined interval, and obtains the minimum and maximum values of the measured value of the water quality, and color-coded between the minimum value and the maximum value. With functionIt is characterized by that.
[0008]
  Therefore, the operator can visually recognize the measured value of the water quality, and can compare and examine the measured values of the water quality with respect to the water depth at a plurality of points with a glance at the display unit. That is, by understanding at a glance the changes and differences in water quality data for each water depth and point, it is possible to accurately grasp the state of the water quality and to prevent deterioration of the water quality.
[0009]
  The analysis operation unit includes an operation unit main body for operating a water quality analyzer, and an arithmetic processing unit connected to the operation unit main body for sucking out the water quality data and performing arithmetic processing on the water quality data and displaying the data.BecauseIn the arithmetic processing unit, the water quality data can be arbitrarily processed, and a more easily viewable display can be performed.
[0010]
  When the connection section between the operation section main body and the arithmetic processing section includes a storage medium for storing water quality data and a slot for the storage medium provided in each of the operation section main body and the arithmetic processing section, the operation section The main body and the arithmetic processing unit may be arranged at positions separated from each other, and the risk of failure associated with carrying the arithmetic processing unit can be eliminated. The water quality analyzer and the analysis operation unit can be easily transported.
[0011]
  The analysis operation unit may include a GPS receiver that can receive position information indicating the longitude and latitude of the measurement point as part of water quality data. In this case, the measurement point can be identified easily and accurately, and the reliability of the water quality data can be improved.
[0012]
  The change in color may be clarified as the display color is color-coded by at least the change in hue. Further, the display color may be color-coded according to at least color shade. In this case, the display unit need only be capable of monochromatic display even if not capable of multicolor display. Furthermore, when the display color is color-coded at least by pattern display, the display unit may not be able to display an intermediate color. These color codes may be used in combination.
[0013]
  Next, the water quality display method of the present invention measures the water quality at predetermined time intervals while moving the water quality analyzer in the water depth direction at each of a plurality of points in the measurement target region, and this measured value is at least the position information of each point. And the process of storing together with the water depth, and the calculation of the water quality measurement value for each water depth in the water depth direction, and color-coding the display color for each water quality measurement value to display multiple points simultaneously Display process,
  In the calculation / display step, interpolated between water quality measurement values of the water quality data measured at the predetermined time intervals to create interpolation data in which the water depth is divided into the predetermined intervals, and the interpolation Each measured value of the data is averaged at the predetermined intervals in the depth direction,
  At the time of display, find the minimum and maximum values of the measured value of water quality, color-coded between the minimum value and the maximum value,
  In addition, the display range of the measured value of water quality can be arbitrarily changed during display.It is characterized by that.
[0014]
  Therefore, the distribution of the measured values can be visually perceived at a glance while being a simplified method of color-coding the measured values, which is useful when comparing the measured values at each point.
[0015]
  When measuring the water quality, the water quality measurement values measured at predetermined time intervals while moving in the water depth direction at each point are stored as water quality data together with the water depth, and each stored water quality data is displayed when the water quality data is displayed. Interpolate between and display the water depth divided into predetermined intervalsBecauseWater quality data can be easily created at the time of water quality measurement, and can be displayed in a format that is easy for the user to see.
[0016]
  When the position information indicating the longitude and latitude of each point is received from a GPS receiver and stored as the water quality data at the time of measuring the water quality, the measurement point can be easily specified.
[0017]
  When displaying the water quality data, obtain the minimum and maximum values of the measured water quality, and display the color between the minimum and maximum values.BecauseMeasured values can be displayed by making the most of the color-coded display range, and the accuracy can be improved. On the other hand, when displaying the water quality data, the display range of the measured value of the water quality can be arbitrarily changed.BecauseIn accordance with the user's intention, it is possible to perform display with arbitrary accuracy.
[0018]
  At the time of displaying the water quality data, the display color may be color-coded according to at least a change in hue so that the measured value can be identified more clearly. Further, at the time of displaying the water quality data, the display color may be color-coded according to at least the color shade. In this case, the application of displaying the distribution of a plurality of measured values at a time by combining the shades of the three primary colors is also possible. When displaying the water quality data, when the color coding of the measurement value is performed step by step with distinguishable colors that gradually change, the accurate value of the measurement value can be clearly shown. Furthermore, at the time of displaying the water quality data, the display color may be color-coded by at least a pattern display.
[0019]
  When displaying the water quality data, the water quality data obtained by adding the water depth to each point spread in two dimensions is displayed as a three-dimensional solid diagram, so that the entire state of the water area that is the measurement target area can be grasped at a glance.
[0020]
  Further, when the water quality data is displayed, the measurement values may be displayed in different colors as a band-shaped graph having a width reflecting the interval between the points displayed simultaneously. Furthermore, when the water quality data is displayed, the water quality data may be rearranged and displayed according to the position information of each point regardless of the measurement order. And at the time of the display of the water quality data, a map clearly indicating the position of each point may be displayed simultaneously.
[0021]
  Next, the computer-readable storage medium of the present invention provides each measured value of water quality from measured values of water quality measured at predetermined time intervals while moving the water quality analyzer in the depth direction at each of a plurality of points in the measurement target region. A display program for calculating the size of each water depth in the water depth direction, color-coding each measured value of water quality, and displaying multiple points at the same time is recorded.,
  Between the measured value of the water quality measured at the predetermined time interval and the measured value of the water quality data composed of the water depth and the position information of the point of the measurement target area, or linearly interpolate or from the measured value of each water quality Record a data interval conversion program that displays the magnitude of the measured value of water quality corresponding to the water depth divided into predetermined intervals, interpolated by curve approximation with the obtained polynomial,
  The display program obtains the minimum value and the maximum value of the measured value of the water quality of the total water quality data to be displayed, and then displays the color between the minimum value and the maximum value in different colors.It is characterized by that.
[0022]
  Therefore, by executing this display program, it is possible to confirm at a glance the magnitude of the measured values for multiple points of water depth, so that the state of the water quality of each part can be easily grasped and the prevention of water quality deterioration is considered. be able to.
[0023]
  By linearly interpolating between water quality data consisting of measured values of water quality, water depth and position information measured at predetermined time intervals while moving in the water depth direction at each point of the measurement target region, and at predetermined intervals When the data interval conversion program for displaying the water quality corresponding to the divided water depth is provided, each water quality data measured by a method easy to measure can be displayed by a method easy for the user to see.
[0024]
  Curves by polynomials obtained from each measured value between water quality data consisting of measured values of water quality and water depth and position information measured at predetermined time intervals while moving in the depth direction at each point of the measurement target region When a data interval conversion program that interpolates by approximation and displays the water quality corresponding to the water depth divided into predetermined intervals is provided, the accuracy of interpolation can be improved and more accurate display can be performed.
[0025]
  AlsoWhen the display program has a display range setting function that can arbitrarily change the display range of the measured value of the water quality to be displayed, detailed display can be performed according to the user's request.
[0026]
  The display program may color-code display colors based on at least a change in hue. Further, the display program may color-code display colors according to at least shades of colors. Furthermore, the display program may be executed step by step with distinguishable colors that gradually change the color coding of the measurement values. The display program may color-code display colors by at least pattern display.
[0027]
  The display program may display water quality data obtained by adding water depth to each point spread in two dimensions as a three-dimensional solid view. Further, the display program may display the measurement values in different colors as a band-like graph having a width reflecting the interval between the points displayed simultaneously.
[0028]
  The water quality data measured at each point in the measurement target area is rearranged according to the position information of each point, and when the data rearrangement program that enables display in the rearranged order, or the display program, When a measurement value display program for displaying the position on the map is provided, the display can be made easier to see.
[0029]
DETAILED DESCRIPTION OF THE INVENTION
  FIG. 1 is a diagram showing a configuration of a water quality measuring apparatus 1 according to a first embodiment of the present invention. In FIG. 1, the water quality measuring apparatus 1 includes an analyzer operation unit 2 and a water quality analyzer 3. The analyzer operation unit 2 includes, for example, an operation unit main body 4 connected to the water quality analyzer 3 via a cable 3a, a GPS receiver 5 connected to the operation unit main body 4 via an expansion unit 4a, and an arithmetic processing unit. The water quality measured by the water quality analyzer 3 is displayed on the display unit 6 a of the personal computer 6 and the display unit 4 b of the operation unit main body 4.
[0030]
  For example, two sensor elements can be attached to the tip of the water quality analyzer 3, 3b is a dissolved oxygen (DO) sensor, 3c is a pH sensor, 3d is a protective cover for these sensors, 3e is various sensors 3b, The water depth sensors 3e and M formed in the vicinity of the mounting portion 3c are storage units for storing water quality data such as measured values measured by the various sensors 3b and 3c. In addition, this invention is a measurementTargetFor example, the water temperature, conductivity, turbidity, redox potential (ORP) may be obtained, or the concentration of another element such as chloride ion, nitrate ion, or calcium may be measured. Moreover, the component which can be measured simultaneously is not limited to two components.
[0031]
  FIG. 2 shows a state in which the water quality of the water area to be measured is measured using the water quality measuring device 1, B is Lake Biwa as an example of the water area, and S is each measurement point St 1 on the lake surface of this water area B. It is a ship that stops at ~ St8 and throws the water quality analyzer 3 into the lake.
[0032]
  As shown by the double arrow A, the water quality analyzer 3 in the lake measures the water quality, for example, every 2 seconds while hanging down from the surface of the lake or pulling it up toward the surface of the lake. Are stored in the storage unit M as water quality data together with the latitude / longitude position information indicating the depth of water measured by (1) and the positions of the points St1 to St8 obtained from the GPS receiver 5.
[0033]
  The measured water depth and each measured value are displayed on, for example, the display unit 4b of the operation unit main body, and after successfully measuring each measured value from the lake surface to the bottom of the lake, the measurement and storage are stopped and the measurement point is moved to another measurement point. . Thus, each measured value with respect to the water depth at the plurality of measurement points St1 to St8 is stored as water quality data.
[0034]
  FIG. 3 is a diagram for explaining a method of processing the acquired water quality data. That is, step S₁As shown in FIG. 4, the water quality analyzer 3 stores the water quality data at the respective point points St1 to St8 in the storage unit M by the method already described in detail. And step S₂As shown in FIG. 4, the personal computer 6 sucks out the water quality data stored in the storage unit M in the water quality analyzer 3 through the operation unit main body 4.
[0035]
  At this time, the personal computer 6 rearranges the water quality data based on the positional information by the data rearrangement program and rearranges the water quality data so as to be in one direction in the water depth direction. (Step S_Three)
[0036]
  FIG. 4 is a diagram for explaining the operation of the data interval conversion program for interpolating between the rearranged water quality data and the operation of the display program for displaying the interpolated water quality data. The graph shown in the figure shows the relationship of the measured value of dissolved oxygen concentration (DO) with respect to the water depth direction at one measurement point among the plurality of measurement points St1 to St8 described above on the vertical axis and the horizontal axis.
[0037]
  First, the personal computer 6 executes a data interval conversion program, so that each of the measured values d of the dissolved oxygen concentration indicated by ● in FIG._{1,2,3 ...}Interpolation data is created by connecting the lines linearly as shown by the broken line L, and measured values D, for example, at intervals of 1 m, shown by circles in FIG._{1,2,3 ...}By converting to, the data measured every predetermined time can be divided into water depths at predetermined intervals. Similarly, the measured value data is interpolated so that the measured value of pH is 1 m. (Step S_Four)
[0038]
  Further, the personal computer 6 averages the polygonal lines L of the interpolated water quality data at intervals of 1 m to obtain the average value indicated by the virtual line arrow. Similarly, the measured pH value is averaged at predetermined intervals in the water depth direction. Moreover, although this example illustrates measuring dissolved oxygen concentration and pH, it cannot be overemphasized that it can process similarly even if it measures other water quality. (Step S_Five)
[0039]
  Further, the data interval conversion program of the present invention is not limited to the linear interpolation method based on the above-described polygonal line approximation, but also each measured value d._{1,2,3 ...}For example, an approximate curve using a polynomial may be calculated by a least square method or the like, and the relationship of the measured value with respect to the water depth may be programmed to be interpolated by curve approximation. Furthermore, it is possible to calculate the average value by a method such as integrating the measured value.
[0040]
  Next, the personal computer 6 obtains the minimum value Dmin and the maximum value Dmax of each measured value of dissolved oxygen concentration and pH constituting the total water quality data to be displayed at a time by the measurement value display program, and the maximum value Dmax from the minimum value Dmin. Assign identifiable colors to values between 1 and 2. (Step S₆In FIG. 4, as an easy-to-determine color classification method that can be illustrated and expressed for the sake of explanation, color classification is performed by pattern display using hatching patterns, but this does not limit the color classification method of the present invention. Needless to say.
[0041]
  In addition, the display program is provided with a display range setting function that can arbitrarily change the display range of the above-described measurement values. If necessary, the display program can measure a specific range according to the intention of the user. Only the values can be expressed in stages.
[0042]
  Next, the personal computer 6 performs step S.₇ Shown inAs described above, the color corresponding to the above average value (the magnitude of the measured value) at each water depth is obtained, and the display color corresponding to each water depth is determined as shown in the band graph 7 shown in FIG. Here, 7a, 7b,... Are display portions applied to colors corresponding to the magnitudes of the measured values when the water depth is 0-1 m, 1-2 m,. In addition, the space | interval divided in a water depth direction can be changed suitably.
[0043]
  The display color determination operation described above is repeated so as to be performed at all the measurement points St1 to St7 displayed at a time. (Step 8)
[0044]
  As the color classification method, not only by the pattern display such as the hatching pattern and the dot pattern described above, but also by gradually changing the color saturation and lightness even if it is expressed by gradually changing the hue. It is also possible to express with color shading.
[0045]
  In particular, when colors are classified by pattern display, it is possible to display the measured values in a pseudo color-coded manner even if the display unit 6a itself has no intermediate color representation capability. Further, when performing color-coded display based on color brightness, even if the display unit 6a is a single-color display (monochrome display, green display, etc.), color-coded display can be performed as long as the shade can be distinguished and displayed. Furthermore, visibility can be improved when performing color-coded display based on color saturation.
[0046]
  When the colors are classified according to hues, the range of identifiable colors is expanded, and the colors can be classified in multiple stages. When distinguishing between color shades and hues, the color corresponding to the magnitude of the measurement value after interpolation shown by the broken line L is used as a gradation without adding a specific step to the color change. You may make it display.
[0047]
  Moreover, it is possible to display more information by expressing these color classification methods in combination. For example, the dissolved oxygen concentration is color-coded and displayed by hue and saturation, and the pH is overlapped and color-coded and displayed by pattern display, whereby both the dissolved oxygen concentration and pH can be displayed on one display unit 6a. . Furthermore, the measurement values of the three elements can be displayed at one time by dividing the color-coded display according to the color saturation into each of the three primary colors (blue, red, and green) of light and displaying each measurement value. .
[0048]
  In the following description, an example of display when the color classification stage is divided into, for example, 18 stages is shown. Color coding is performed by combining changes in hue and saturation, and changes to (brown-red-orange-yellow-green-blue-purple) and changes the saturation to distinguish each color. An example that makes it easy to attach is shown. It should be noted that the color classification stage and the color classification method can be changed as appropriate, and the difference between the colors can be made clearer by reducing the number of stages.
[0049]
  As described above, by displaying the measurement values by color according to their sizes, it is possible to simultaneously display the measurement values corresponding to the water depths of the plurality of measurement points St1 to St8 on one display unit 6a. Differences in measurement results at points can be compared.
[0050]
  FIG. 5 shows an example of measurement result display on the display unit 6a. As shown in FIG. 5, the water quality data corresponding to the water depths of the respective points St <b> 1 to St <b> 8 is color-coded by the above procedure and displayed as one graph 8. Reference numeral 9 denotes a display color-measurement value correspondence table indicating which value of each displayed color corresponds to the measured value. The graph 8 and the display color-measurement value correspondence table 9 are displayed in the water quality display window 10. Is done. (Step S₉)
[0051]
  On the other hand, 11 is a measurement point display window, which displays a map of Lake Biwa in the measurement target area and markers indicating the positions of the points St1 to St8 on the same display portion 6a. (Step S_TenTherefore, by displaying the measurement point display window 11 and the water quality display window 10 at the same time, the user can grasp the situation of Lake Biwa from the water quality data shown in the graph 8, and estimate the cause of pollution and environmental conservation. Support for considering countermeasures for this.
[0052]
  A commercially available map can be used for the display of the map. In this case, by storing the position information obtained from the GPS receiver 5 as in this example, the position information can be easily displayed in association with the map data.
[0053]
  The display of the graph 8 is not limited to being performed on the display unit 6a, but may be performed on the display unit 4b of the operation unit body 4. In this case, it is not necessary to connect the personal computer 6 to the operation unit main body 4, and each step S executed on the personal computer 6 described above is performed.₁~ S_TenThe above operation can be performed by the microcomputer mounted on the operation unit main body 4 (the arithmetic processing unit incorporated in the operation unit main body 4) executing the above-described various programs.
[0054]
  In the graph 8 described above, the width of the band-shaped graph 7 representing the water quality data of each point St1 to St8 is the same, so that a width that can accurately recognize the difference in display color can be ensured. May be variably displayed in correspondence with the distances between the points St1 to St8. In this case, the correspondence between each measurement point St1 to St8 and each band graph 7 can be made clearer.
[0055]
  In the above-described example, the water quality measurement points St1 to St5 on the east side of the lake B are made denser than the water quality measurement points St7 and St8 on the west side. Accordingly, a more detailed water quality survey can be performed on the east side of Lake B, and the water quality survey can be quickly performed by roughly measuring the less important parts of the environmental measurement data.
[0056]
  Furthermore, in the above-described example, since the measured values of all the points St1 to St8 whose water quality has been investigated are displayed on the display unit, the overall situation can be seen. It is not limited to displaying data. That is, it is possible to display measured values from points St1 to St5, for example, according to the user's request.
[0057]
  In the above-described example, the measurement points St1 to St8 are arranged on a substantially straight line with respect to the measurement target region. However, the present invention is not limited to this. That is, a three-dimensional water quality state may be grasped by adding a water depth direction to each measurement point spreading two-dimensionally.
[0058]
  FIG. 6 is a diagram showing a display example in which the water quality data is displayed three-dimensionally. In this example, the measurement point St is arranged in a plane with respect to the lake B in the measurement target region, and the water quality data is measured in the water depth direction at each point St. According to the measurement value in the water depth direction as indicated by 7 '. Create a colored square column chart. Then, a perspective view B 'for seeing through the lake B is drawn on the display unit 6a, and the bar graph 7' is displayed at a position corresponding to each point St so as to be superimposed on the perspective view B '.
[0059]
  By doing so, the three-dimensional water quality state in Lake B can be visually displayed and the three-dimensional water quality distribution can be grasped as a whole. Can be considered. In addition, although the example which has arrange | positioned each measurement point St at a fixed space | interval is shown in the above-mentioned example, this invention is not limited to this, You may distribute irregularly. The thickness and length of the bar graph 7 'are adjusted according to the distribution density of each measurement point St, and are set to such a degree that most of the bar graphs 7' do not overlap each other.
[0060]
  FIG. 7 shows another example of the three-dimensional display. In this example, a line connecting the measurement points St in the east-west direction as indicated by virtual lines is created, and a graph 8 as shown in FIG. 5 is generated according to the measurement values of a plurality of points located on one line. create. Then, the graph 8 is displayed on the display unit 6a so as to be superimposed on the perspective view B 'of the lake B.
[0061]
  By displaying as in this example, a wide variety of color-coded displays at each position can be displayed, so that changes in measured values can be displayed more clearly. Moreover, it becomes easy to compare changes in water quality data with respect to water depth in the east-west direction.
[0062]
  FIG. 8 shows still another example of the three-dimensional display. That is, in this example, the measured value of each measurement point St on the line connected in the north-south direction indicated by the virtual line is displayed as the graph 8 displayed on the obliquely inclined surface. By displaying like this example, it becomes easy to compare water quality data in the north-south direction.
[0063]
  Note that the present invention does not limit the three-dimensional representation method to the above-described three types, and can be displayed by various methods. For example, by interpolating each water quality data measured three-dimensionally and coloring the surface sliced at predetermined intervals in the water depth direction with a hue corresponding to the interpolated measurement value, A distribution may be expressed.
[0064]
  In addition, in the above-described embodiments, the connection method between the personal computer 6 and the operation unit main body 4 is not limited. That is, not only a general-purpose communication port such as RS-232C but also a modem connection or a connection by electromagnetic waves or infrared communication may be used. Furthermore, as shown in FIG. 1, it is possible to provide slots 4c and 6b in which both can be connected via the storage medium m so that water quality data can be sucked out via the storage medium m. In this case, since it is not necessary to move the personal computer 6, it is not necessary to require the personal computer 6 to be robust. Alternatively, modifications such as directly connecting the water quality analyzer 3 to the personal computer 6 and omitting the operation unit main body 4 are possible.
[0065]
  Furthermore, the water quality data display program, data rearrangement program, and data interval conversion program described in each of the above embodiments are recorded in a storage medium such as a CD-ROM, floppy disk, or memory card. Therefore, by using these storage media, the same color-coded display can be performed in another arithmetic processing device connected to any type of water quality analyzer 3 having a communication function.
[0066]
【The invention's effect】
  As described above, according to the present invention, the operator can easily compare and examine the measured values of the water quality with respect to the water depth at a plurality of points only by looking at the display unit. That is, by accurately grasping the state of water quality, it is possible to more effectively prevent the deterioration of water quality. In addition, by displaying the water quality data with the water depth added to each point spread in two dimensions as a three-dimensional solid diagram, the distribution of measured water quality values in a deep space that could not be considered in the past can be visualized. It can be displayed and the situation can be grasped at a glance.
[0067]
  When the display color is color-coded by at least a change in hue, the change in color can be clarified. Further, when the display color is color-coded according to at least the shade of color, the display unit can be expressed as long as it can display in a single color even if it cannot display in multiple colors. Further, when the display color is color-coded by at least pattern display, the color-coded display can be performed in a pseudo manner even if the display unit cannot display an intermediate color. And the expressive power can be further improved by combining these color classifications.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a configuration of a water quality measuring apparatus as an example of the present invention.
FIG. 2 is a diagram for explaining a method of measuring water quality data using the water quality measuring apparatus.
FIG. 3 is a diagram for explaining a method for computing water quality data measured by the above method.
FIG. 4 is an explanatory diagram showing, as a graph, a color classification method based on the arithmetic processing.
FIG. 5 is a view showing a display example displaying the color-coded water quality data (partly changed from “Atlas RD Kinki” by Alps Co., Ltd.).
FIG. 6 is a diagram illustrating a display example in which the water quality data is displayed three-dimensionally.
FIG. 7 is a diagram showing a modification of the display example.
FIG. 8 is a diagram showing another modification of the display example.
FIG. 9 is a diagram showing a configuration of a conventional water quality measuring apparatus.
[Explanation of symbols]
  DESCRIPTION OF SYMBOLS 1 ... Water quality measuring device, 2 ... Analyzer operation part, 3 ... Water quality analyzer, 4 ... Operation part main body, 4b ... Display part, 4c ... Slot, 5 ... GPS receiver, 6 ... Arithmetic processing part, 6a ... Display part 6b ... slot, B ... measurement area, d_{1,2,3 ...}... measured value of water quality, Dmin ... minimum value, Dmax ... maximum value, m ... storage medium, St1 to St8 ... measurement points.

Claims (14)

A water quality analyzer that stores water quality data including measured values of water quality measured at predetermined time intervals while moving in the direction of water depth at each of a plurality of points in the measurement target area, together with position information and water depth of each point, and
The water quality measurement value measured by the water quality analyzer is calculated for each water depth in the direction of the water depth, and equipped with an arithmetic processing unit that performs color coding for each water quality measurement value. It consists of an analysis operation unit with a display unit that displays colors according to the display color corresponding to the size of the measured value,
The analysis operation unit includes an operation unit main body for operating a water quality analyzer, and the arithmetic processing unit is connected to the operation unit main body so that the water quality data stored in the storage unit in the water quality analyzer can be sucked out. Further, the arithmetic processing unit interpolates between measured values of water quality measured at each predetermined time interval to create interpolation data in which water depth is divided into predetermined intervals, A function that averages each measured value of the interpolation data in the depth direction at the predetermined interval, and obtains the minimum and maximum values of the measured value of the water quality, and color-coded between the minimum value and the maximum value. A water quality measuring device characterized by having a function.   The connection part of the said operation part main body and the arithmetic processing part consists of the storage medium which memorize | stores water quality data, and the slot of the said storage medium provided in each of the said operation part main body and the arithmetic processing part. Water quality measuring device.   The water quality measurement device according to claim 1 or 2, wherein the analysis operation unit includes a GPS receiver that can receive position information indicating the longitude and latitude of the measurement point as part of water quality data. Measuring the water quality at each predetermined time interval while moving the water quality analyzer in the depth direction at each of the multiple points in the measurement target area, storing the measured values together with the position information and water depth of each point, and measuring the water quality A calculation / display process that calculates the size of the value for each depth in the direction of the water depth, and displays each of the measured values of the water quality in different colors according to the display color.
In the calculation / display step, interpolated between water quality measurement values of the water quality data measured at the predetermined time intervals to create interpolation data in which the water depth is divided into the predetermined intervals, and the interpolation Each measured value of the data is averaged at the predetermined intervals in the depth direction,
At the time of display, find the minimum and maximum values of the measured value of water quality, color-coded between the minimum value and the maximum value,
Further, a water quality display method characterized in that the display range of the measured value of the water quality can be arbitrarily changed at the time of display.   5. The water quality display method according to claim 4, wherein at the time of display, the magnitude of the measured value of the water quality obtained by adding water depth to each point spread in two dimensions is displayed as a three-dimensional solid diagram.   The water quality display method according to claim 4 or 5, wherein the size of the measured value of the water quality is displayed in a color-coded manner as a band-shaped graph reflecting the interval between the points to be displayed simultaneously at the time of display. When displayed, regardless of the order of the measurement, the water quality display method according to any one of claims 4-6 for displaying sorted according to the position information of each point. When displayed, the water quality display method according to any one of claims 4-7 for displaying a map that clearly the position of each point at the same time. A storage medium for use in water quality measurement device according to any one of claims 1 to 3 for sucking the water quality data stored in the storage unit in the quality analyzer, the plurality of points each measurement target region Calculate the size of each measured water quality from the measured water quality measured at specified time intervals while moving the water quality analyzer in the depth direction for each water depth. Record a display program to display multiple points at the same time with color coding.
Between the measured value of the water quality measured at the predetermined time interval and the measured value of the water quality data composed of the water depth and the position information of the point of the measurement target area, or linearly interpolate or from the measured value of each water quality Record a data interval conversion program that displays the magnitude of the measured value of water quality corresponding to the water depth divided into predetermined intervals, interpolated by curve approximation with the obtained polynomial,
The display program obtains the minimum value and the maximum value of the measured value of the water quality of the total water quality data to be displayed, and then displays the color between the minimum value and the maximum value in a color-coded manner. Storage medium.   The computer-readable storage medium according to claim 9, wherein the display program has a display range setting function that can arbitrarily change a display range of a measurement value of water quality to be displayed.   The computer-readable storage medium according to claim 9 or 10, wherein the display program displays, as a three-dimensional solid diagram, the magnitude of a water quality measurement value obtained by adding water depth to each point spread in two dimensions. The display program, as the belt-like graph of width reflecting the distance of each point between the simultaneous display, according to any one of claims 9 to 11 is for color displaying the magnitude of the measured value of water quality computer A readable storage medium. Water quality data measured at each point of the measurement target region, and sorted according to the position information of each point, any one of claims 9 to 12 which records the data rearrangement program that can be displayed in sorted order A computer-readable storage medium described in 1. The display program, a computer readable storage medium according to any one of claims 9 to 13 having a measurement value display program the position of each point is displayed over the map.

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