JP5775710B2 - measuring device - Google Patents

Description

  The present invention relates to a measuring apparatus for measuring pH, oxidation-reduction potential, ion concentration, conductivity and the like of a fluid such as water or food.

  In recent years, measuring devices to which various functions are added in addition to simply measuring pH and the like in response to user needs are being developed. For example, paying attention to the function of displaying the measurement result on a display, there is a display such as an analog meter with a scale and a pointer, or a time series graph (Patent Document 1). These displays can be switched by the user pressing an operation button provided below the display.

  By the way, in such a multifunctional measuring apparatus, the number of operation buttons tends to increase as various functions are added. Then, the user cannot grasp where the operation button he wants to press is, and there arises a problem that the operation becomes difficult to understand.

  Furthermore, a beginner who is not familiar with the operation may feel uneasy about whether or not the operation to be performed is correct when attempting to switch the display. Whether or not the switching operation is correct cannot be determined until the display is confirmed after the switching operation is completed, and thus the user is forced to perform the switching operation without anxiety being eliminated.

JP 2004-325077 A

  Therefore, the present invention is intended to solve the above problem, and in a measuring apparatus capable of switching the display screen, the user can switch the display with an intuitive and easy-to-understand operation. However, the main objective is to provide a measuring device that can be switched with confidence.

  That is, the measurement apparatus according to the present invention displays on a display a measurement result obtained from a probe that is in contact with a measurement object and measures at least one of pH, redox potential, ion concentration, and conductivity. A display device that includes a numerical display screen that displays the measurement result as a numerical value, a series of scales with values assigned to the required locations, and a scale corresponding to the measurement result At least one of an analog display screen for displaying an instruction means for indicating the position of the display and a graph display screen for displaying the measurement result as a time series graph in a coordinate system in which one axis indicates time and the other axis indicates a measurement result. Two display screens are displayed in a switchable manner, and the display is a touch panel display, and the display control unit is displayed on the display. In conjunction with the touch slide operation, the display screen displayed before the touch slide operation is moved outside the display area of the display, and another display screen is moved within the display area accordingly. Thus, the display screens are continuously switched.

  If it is such, since a display control part switches a display screen in response to the touch slide operation with respect to a touchscreen display, a user can switch a display screen only by touch-slide operation. Therefore, the user does not need to perform a complicated operation of selecting an appropriate one from various operation buttons, and can switch the display screen by an intuitive and easy-to-understand switching operation. In addition, the display control unit moves the display screen displayed before the touch slide operation to the outside of the display area of the display in conjunction with the touch slide operation on the display, and performs another display accordingly. By moving the screen into the display area, the display screens are continuously switched, so that the user can check the display screen of the switching destination during the switching operation. Therefore, before the switching operation is completed, the user can check whether the operation is correct and can perform the switching operation with peace of mind.

  In order to further improve the user-friendliness, when the slide distance of the touch slide operation is greater than or equal to a predetermined value, the display control unit displays the other display screen, and the slide distance of the touch slide operation is predetermined. When the value is less than the value, it is preferable that the display control unit displays a display screen that was displayed before the touch slide operation.

  In order to make the switching operation easier to understand, it is preferable that when the display is touched, the display control unit displays a guide indicating a movable direction of the display screen.

  Therefore, according to the present invention, the display screen can be switched by an intuitive and easy-to-understand operation by the user, and the switching destination display screen can be confirmed during the switching operation and the switching operation can be performed with peace of mind.

The typical whole figure of the measuring device in the embodiment of the present invention. The functional block diagram of the measuring apparatus of the embodiment. The screen block diagram which shows an example of the graph display screen of the embodiment. The screen block diagram which shows an example of the analog display screen of the embodiment. The screen block diagram which shows an example of the numerical display screen of the embodiment. The screen block diagram which shows the process in which the graph display screen of the embodiment is switched to a numerical value display screen. The screen block diagram which shows the process in which the graph display screen of the embodiment is switched to an analog display screen. The screen block diagram which shows the process in which the analog display screen of the embodiment is switched to a numerical display screen. The screen block diagram which shows the process in which the numerical range of a time axis is changed in the graph display screen of the embodiment. The screen block diagram which shows the process in which the numerical range of a measurement axis is changed in the graph display screen of the embodiment. The screen block diagram which shows the process in which the numerical range shown by a scale is moved in the analog display screen of the embodiment. The screen block diagram which shows the process in which the numerical range shown by a scale is expanded and reduced in the analog display screen of the embodiment. The screen block diagram which shows the state in which the variable display area is touch-operated in the numerical value display screen of other embodiment. The screen block diagram which shows the process in which the numerical range of a time-axis is changed in the graph display screen of other embodiment.

  Next, a measuring apparatus 100 according to an embodiment of the present invention will be described with reference to the drawings.

  The measuring device 100 is a water quality measuring device that measures the pH, redox potential, ion concentration, conductivity, turbidity, concentration of contained components such as dissolved oxygen, and the like of a measurement object such as an aqueous solution or food.

  Specifically, as shown in FIG. 1, this includes a probe 10 that is a measurement unit that measures a measurement object, and a main body 30 that is electrically connected to the probe 10 by a cable 20. The probe 10 and the main body 30 may be connected by wireless communication. Hereinafter, each part is explained in full detail.

  The probe 10 measures a measurement object. The probe 10 is configured to be detachable from the main body 30 and can be replaced depending on the measurement purpose. Examples of the probe 10 include a pH measurement probe, a redox potential measurement probe, an ion concentration measurement probe, a conductivity measurement probe, a dissolved oxygen measurement probe, and a turbidity measurement probe. Hereinafter, this embodiment will be described by taking a pH measurement probe as an example.

  The pH measurement probe 10 is configured by integrating a glass electrode and a reference electrode. At the tip of the pH measurement probe 10, a detection unit for a glass electrode and a reference electrode is arranged. The detection unit comes into contact with the measurement object, and the pH measurement probe 10 detects a potential difference between the glass electrode and the comparison electrode, and outputs a detection signal indicating the potential difference.

  The main body 30 has a substantially flat plate shape, and is a tablet computer in which a display 40 and a control mechanism for controlling the entire measuring apparatus 100 are integrally formed.

  The display 40 is a touch panel display, and serves as both display means and input means. The display area for displaying an image on the display 40 also serves as an area for receiving a position input by a touch operation. In addition, the position detection method of the touch panel display 40 is a single touch method in which only one point can be input simultaneously, and here is a capacitance method. The user can input the position of the electrostatic capacity type display 40 by bringing the fingertip or the like close to each other in addition to touching the display. Therefore, in this embodiment, the touch operation refers to an operation in which the user brings a position input member such as a fingertip or a touch pen into contact with or close to the display 40, and corresponds to a click operation with a mouse. During the touch operation, the user may move the fingertip or the like immediately after touching or approaching the fingertip, or may keep the touched or approached state for a predetermined time. The touch slide operation refers to an operation in which the user moves a fingertip or the like in contact with or close to the display 40 after the touch operation, and corresponds to a drag operation with a mouse.

  The control mechanism physically includes a CPU, a memory, an A / D converter, and the like. The control mechanism stores a predetermined program in the memory, and operates the CPU and its peripheral devices in cooperation with each other according to the program, so that the measurement data calculation unit 31, the measurement data storage unit 32, the display control are performed as shown in FIG. The function as the part 33 etc. is demonstrated.

  The measurement data calculation unit 31 receives a detection signal from the probe 10 and calculates measurement data indicating the pH measurement value of the measurement object based on the value of the detection signal and the calibration curve stored in the memory. is there.

  The measurement data storage unit 32 is set in a predetermined area of the memory, and sequentially stores measurement data calculated by the measurement data calculation unit 31 one after another.

  The display control unit 33 displays the measurement result obtained from the probe 10 on the display 40. The display control unit 33 displays a plurality of display screens W1, W2, and W3 in a switchable manner. Here, the graph display screen W1 (FIG. 3), the analog display screen W2 (FIG. 4), and a numerical display screen are displayed. W3 (FIG. 5) is displayed in a switchable manner.

  Each display screen W1, W2, W3 will be described. As shown in FIG. 3, the graph display screen W1 displays the measurement results as a time series graph in a coordinate system in which the horizontal axis is a time axis indicating time and the vertical axis is a measurement axis indicating pH measurement results. Is. Normally, the value attached to the time axis and the value attached to the measurement axis are configured to be automatically set to appropriate values according to the measurement result. Here, the numerical range of the time axis is set to have a predetermined width and includes the latest measurement time, and the numerical range of the measurement axis includes the maximum value and the minimum value of pH indicated by the measurement result. It is set as follows. The intermediate value of the measurement axis is set so as to be a numerical value with two digits after the decimal point. For example, when the average value of the maximum and minimum pH values is calculated as 6.207, which is a three-digit number after the decimal point, 6.20, which is the closest two-digit number, is set as the intermediate value. The

  As shown in FIG. 4, the analog display screen W <b> 2 displays a series of scales with values at required locations and instruction means for indicating positions on the scales corresponding to the latest pH measurement results. Here, the scales are arranged radially at equal intervals, and the pointer is configured to rotate on the scales. Usually, the value attached to the scale is automatically set to an appropriate value according to the measurement result. Here, an upper limit value, a lower limit value, and an intermediate value that is an average value of the upper limit value and the lower limit value are attached to the scale. Then, the intermediate value is determined according to the measured pH value, and the upper limit value and the lower limit value are set so that the interval between the values becomes a predetermined value (here, 0.03). For example, when the pH measurement value is 6.193, 6.19, which is a numerical value with two decimal places closest to it, is set as the intermediate value. Further, 6.16 and 6.19 are set as the lower limit value and the upper limit value.

  As shown in FIG. 5, the numerical value display screen W3 displays the latest pH measurement result as a numerical value, and here displays it as a numerical value with three decimal places.

  In this embodiment, when the user performs a touch slide operation on the display 40, the display content of the measurement result is changed according to the touch slide operation. Specifically, the display control unit 33 switches the display screens W1, W2, and W3 in conjunction with the touch slide.

  First, a case where the display control unit 33 switches the display screens W1, W2, and W3 will be described with reference to FIGS. FIG. 6A shows an example in which the display screen before switching is the graph display screen W1.

  Here, a plurality of areas are set in each of the display screens W1, W2, and W3 including the graph display screen W1. Specifically, a first display area A1 (hereinafter also referred to as a measurement result display area) that is formed at the center of each display screen W1, W2, and W3 and displays a measurement result, and each display screen W1, W2, and W3 A second display area A2 (hereinafter also referred to as a peripheral area) formed in the peripheral portion and different from the first display area is set. Here, the display content change mode is different between when the measurement result display area A1 is touch-slid and when the peripheral area A2 is touch-slid. When the peripheral area A2 is touch-slid, the display control unit 33 switches the display screens W1, W2, and W3. Note that the user touch-sliding the peripheral area A2 means that the area first touch-operated during the touch-slide operation is the peripheral area A2. The case where the measurement result display area A1 is touch-slided will be described later.

  When the user touches and slides the peripheral area A2 of the graph display screen W1 in the right direction, the display control unit 33 switches the graph display screen W1 to the numerical display screen W3. More specifically, when the user performs a touch slide operation, the display control unit 33 receives an operation signal indicating the touch slide operation from the display 40. In conjunction with the touch slide operation, the display control unit 33 moves the displayed display screen (here, the graph display screen W1) to the outside of the display area of the display 40 before the display 40 is touch-slided. In accordance with this, another adjacent display screen (here, the numerical display screen W3) is moved into the display area. Thereby, each display screen W1, W3 is switched continuously.

  As shown in FIG. 6B, the end of the display screen W1 before switching and the end of the display screen W3 after switching are continuously connected. Accordingly, the distance (region) where the display control unit 33 scrolls the display screen W1 before switching is equal to the distance (region) where the display screen W3 after switching is scrolled. The slide distance of the touch slide operation is set to be equal to the distance that the display screens W1 and W3 move. Note that the slide distance refers to the distance from the position where the user touches or brings the fingertip or the like to the display 40 to the position where the fingertip or the like is moved away from the display 40 after being moved while keeping the contacted or approached state. Say distance.

  When the touch slide operation is completed, if the slide distance of the touch slide operation is equal to or greater than a predetermined value, the display control unit 33 displays a switching destination display screen (here, a numerical display screen W3). If the slide distance is less than the predetermined value, the display control unit 33 displays the display screen before switching (here, the graph display screen W1). Specifically, when the touch slide operation is completed, if the switching destination display screen W3 is displayed more than half, the switching destination screen W3 is displayed; otherwise, the display screen W1 before switching is displayed. It is set so that.

  As shown in FIG. 6B, when the area of the display screen (numerical value display screen W3) of the switching destination in the display area of the display 40 is compared with the area of the display screen (graph display screen W1) before the switching, The area of the display screen W1 is larger. When the user finishes the touch slide operation in this state, the display control unit 33 moves the display screens W1 and W3 in the direction opposite to the direction in which the display 40 is touch-slided and returns to the graph display screen W1. . That is, the display control unit 33 moves the graph display screen W1 so that the both ends of the graph display screen W1 and the both ends of the display area of the display 40 are matched. On the other hand, when the area of the numerical display screen W3 is larger, the display control unit 33 switches the graph display screen W1 to the numerical display screen W3.

  Note that when the user performs a touch operation on the peripheral area A2, the display control unit 33 displays a guide 50 indicating a direction in which the touch slide operation can be performed. Here, the display control unit 33 displays arrows indicating the left and right directions (FIG. 6A). Subsequently, as shown in FIG. 6B, when the user starts touch-slide operation in the right direction, the display control unit 33 displays only the guide 50 indicating the right direction and deletes the other guides 50 and receives them. Inform the user of the input operation.

  Similarly, when the user touches and slides the peripheral area A2 of the graph display screen W1 leftward, the display control unit 33 switches the graph display screen W1 to the analog display screen W2 (FIG. 7A → FIG. 7B).

  The display screen before switching may be an analog display screen W2 or a numerical display screen W3. For example, as shown in FIG. 8, when the user touches and slides the peripheral area A2 of the analog display screen W2 leftward, the display control unit 33 switches the analog display screen W2 to the numerical display screen W3. On the graph display screen W1 and the analog display screen W2, when the peripheral area A2 is touch-slided, the display screens W1 and W2 are switched. On the other hand, in the numerical display screen W3, the display screen W3 is switched even when the measurement result display area A1 is touch-slid in addition to the peripheral area A2.

  Further, the display control unit 33 according to the present embodiment changes the numerical range of the coordinate axis and the numerical range indicated by the scale according to the touch slide operation. A case where the display control unit 33 changes the numerical value range of the coordinate axes of the graph display screen W1 will be described with reference to FIGS. 9 and 10. Here, the case where the touch slide operation is along the first direction (here, the time axis) and the case where the touch slide operation is along a second direction (here, the measurement axis) different from the first direction, The display contents are changed differently. First, a case where the user performs a touch slide operation along the time axis will be described. FIG. 9A shows an example in which the numerical range of the time axis of the graph display screen W1 is in the range of 12 seconds to 102 seconds before the touch slide operation is performed.

  When the user touches and slides the measurement result display area A1 on the graph display screen W1 in the left direction along the time axis, the display control unit 33 moves the numerical range of the time axis. More specifically, when the user starts a touch slide operation, the display control unit 33 receives an operation signal indicating the touch slide operation from the display 40. Then, the automatic setting for the numerical value range of the time axis is canceled and the setting is switched to the manual setting.

  In conjunction with the touch slide operation, the display control unit 33 decreases the upper limit value and the lower limit value while maintaining the difference between the upper limit value and the lower limit value of the time axis numerical range, and sets the time axis numerical range. Moving. FIG. 9B shows an example in which the numerical range of the time axis of the time series graph has moved from 0 seconds to 90 seconds. Further, the display control unit 33 moves the time series graph corresponding to the moved numerical range within the display area of the display 40 in conjunction with the touch slide operation. As a result, the display range of the time series graph moves continuously, and the past time series graph in the numerical range of the time axis after the change is displayed.

  After the user finishes the touch slide operation, the numerical range on the time axis remains in the state after being manually set until the touch operation is performed. After the user performs a touch operation, if the fingertip is moved away without moving the fingertip from the position where the fingertip is touched or approached, the numerical range of the time axis returns to the automatic setting state and the latest time series graph is displayed. To do. On the other hand, when the user performs a touch operation and moves the fingertip in a state where the fingertip is in contact with or close to the display, the display control unit further changes the numerical range of the time axis.

  When a user wants to display a time series graph corresponding to a numerical range after the numerical range of the time axis currently displayed by the user, the user performs a touch-slide operation in the right direction along the time axis. FIG. 9C shows an example in which the numerical range of the time axis has moved to a range from 30 seconds to 120 seconds.

  With reference to FIG. 10, a case where the user performs a touch slide operation along the measurement axis and the display control unit 33 expands or reduces the numerical range of the measurement axis on the graph display screen W1 will be described. FIG. 10A shows an example in which the numerical range of the measurement axis on the graph display screen W1 is a range from 6.18 to 6.22 before the touch slide operation is performed.

  As illustrated in FIG. 10B, when the user performs a touch slide operation on the measurement result display area A1 of the graph display screen W1 along the time axis, the display control unit 33 reduces the numerical range of the measurement axis. More specifically, the display control unit 33 maintains the intermediate value (here, 6.20) that is the average value of the upper limit value and the lower limit value of the numerical range of the measurement axis, while maintaining the difference between the intermediate value and the lower limit value, And the difference between the intermediate value and the upper limit value is decreased by the same value. FIG. 11B shows an example in which the numerical range of the measurement axis after the change is a range from 6.19 to 6.21. The display control unit 33 displays a time series graph corresponding to the numerical range of the measurement axis after the change.

  Similarly, when the user performs a touch slide operation along the time axis in the downward direction, the display control unit 33 expands the numerical range of the measurement axis. FIG. 11C shows an example in which the numerical range of the measurement axis after the change is a range from 6.16 to 6.24.

  When the user performs a touch operation on the display 40, the display control unit 33 displays a guide 50 indicating the direction in which the touch slide operation can be performed as illustrated in FIG. 9A and the like. Here, the display control unit 33 displays arrows indicating the respective directions of up, down, left, and right. Subsequently, when the user starts touch-sliding in the left direction along the time axis, the display control unit 33 displays only the guide 50 indicating the left direction and the other guides 50 as shown in FIG. 9B and the like. Erase and inform the user of the accepted input operation.

  With reference to FIG. 11 and FIG. 12, the case where the display control part 33 changes the numerical value range shown by the scale of the analog display screen W2 is demonstrated. First, the case where the display control unit 33 moves the numerical value range of the scale will be described with reference to FIG. FIG. 11A shows an example in which the numerical range indicated by the scale on the analog display screen W2 is a range from 6.16 to 6.22 before the touch slide operation is performed.

  The user touches and slides the measurement result display area A1 on the analog display screen W2 in the direction along the scale arrangement direction and in the direction from the upper limit value to the lower limit value (here, the left direction). Then, the display control unit 33 decreases the upper limit value and the lower limit value of the numerical value range indicated by the scale by the same value. As a result, the numerical range moves while maintaining the difference between the upper limit value and the lower limit value. FIG. 11B shows an example in which the numerical value range of the scale is changed to a range from 6.14 to 6.20.

  In addition, when the user wants to move the numerical value range of the scale in the reverse direction, the user performs a touch slide operation in the direction along the scale arrangement direction and in the direction from the lower limit value to the upper limit value (here, the right direction). That's fine. FIG. 11C shows an example in which the numerical value range of the scale is from 6.18 to 6.24.

  A case where the display control unit 33 reduces or enlarges the numerical value range of the scale will be described with reference to FIG. FIG. 12A shows an example in which the numerical range indicated by the scale on the analog display screen W2 is a range from 6.16 to 6.22 before the touch slide operation is performed.

  When the user touches and slides the measurement result display area A1 on the analog display screen W2 in the upward direction, which is one of the directions substantially orthogonal to the scale arrangement direction, the display control unit 33 reduces the numerical range of the measurement axis. (FIG. 12B). More specifically, the display control unit 33 maintains the difference between the intermediate value and the lower limit value and the difference between the intermediate value and the upper limit value by the same value while maintaining the intermediate value (6.19) in the numerical range indicated by the scale. Decrease. As a result, FIG. 12B shows an example in which the numerical range of the scale after the change is in the range from 6.18 to 6.20.

  Similarly, when the user performs a touch slide operation in the downward direction, the display control unit 33 expands the numerical value range of the scale. FIG. 12C shows an example in which the numerical range of the scale after the change is in the range from 6.09 to 6.29.

  The guide 50 is also displayed on the analog display screen W2, but since it is the same as that on the graph display screen W1, the same reference numerals are given and description thereof is omitted.

  According to the measurement apparatus 100 of the present embodiment, the display control unit 33 switches the display screen in conjunction with the touch slide operation on the touch panel display 40, so that the user can switch the display screen only by performing the touch slide operation. . Therefore, the user does not need to perform a complicated operation such as selecting an appropriate one from various operation buttons, and the user can switch the display screen with an intuitive and easy-to-understand operation. Further, in conjunction with the touch slide operation, the display control unit 33 starts to scroll and erase the switching source display screen, and starts to scroll and display the switching destination display screen. Therefore, the user can check the display screen of the switching destination during the switching operation. Therefore, the user can confirm whether the operation is correct before the switching operation is completed, and the switching operation can be performed with peace of mind.

  Furthermore, when the user touches the display 40, the display control unit 33 displays the guide 50 indicating the direction in which the touch slide operation can be performed, so that the user touches without checking the manual of the measuring apparatus 100 or the like. You can intuitively understand the direction to slide. Furthermore, when the user starts the touch slide operation, only the guide 50 corresponding to the touch slide operation accepted by the display control unit 33 is displayed, so that the user can confirm the operation accepted by the measurement apparatus 100 and can feel at ease. Can be operated.

  The present invention is not limited to the above embodiment. For example, the display screen is not limited to these, and in addition to each display screen, a menu screen for performing various settings related to the measurement apparatus and an explanation screen for displaying an operation description may be displayed in a switchable manner.

  In addition, the direction in which the touch slide operation can be performed is the vertical direction or the left-right direction, but may be other directions. For example, it may be set in an oblique direction.

  Further, when the display is touch-slid, the display control unit may enlarge or reduce the numerical range of the time axis, and the difference between the upper limit value and the lower limit value of the numerical range of the measurement axis is maintained. You may make it move.

  Although the slide distance of the touch slide operation is equal to the distance that the display screen moves, it may be proportional, for example. Further, a relational expression indicating a relation between the slide distance of the touch slide operation and the distance that the display screen moves may be calculated in advance, and the movement distance may be calculated according to the relational expression. Specifically, the moving distance increases exponentially as the sliding distance of the touch slide operation increases. The same applies to the relationship between the slide distance of the touch slide operation and the change amount of the numerical value range.

  In addition, in the present embodiment, the measurement result display area and the peripheral area are distinguished on the graph display screen and the analog display screen, but they may not be distinguished. Specifically, regardless of which area is touch-slid, if the touch-slide operation is in the horizontal direction, the display control unit switches the display screen. Furthermore, as long as the touch slide operation is in the vertical direction, the display control unit may change the numerical range of the coordinate axes and the numerical range indicated by the scale.

  Further, as shown in FIG. 13, when the numerical display screen is displayed, when the user selects the measurement time by the touch slide operation, the display control unit displays the measurement result corresponding to the selected measurement time. It may be. Specifically, a variable display area A3 in which variables such as measurement time are displayed is formed on the numerical display screen. The user may change the measurement time by touching and sliding the variable display area A3 in the vertical direction. Similarly, on the graph display screen or the analog display screen, the display control unit may display the measurement result corresponding to the variable.

  Focusing on the display area, in this embodiment, in the graph display screen, an area that is a combination of the area surrounded by the coordinate axes and the area where the values attached to the coordinate axes are displayed is set as the measurement result display area. However, only the area surrounded by the coordinate axes may be set as the measurement result display area. The same applies to the analog display screen.

  Focusing on the guide, in this embodiment, when the user touches the measurement result display area, only the guide of the measurement result display area is displayed. The display mode of the guide is not limited to this. For example, when the user touches the measurement result display area, the display control unit displays a guide for the measurement result display area and a guide for the peripheral area. Furthermore, the display control unit may display the guides in the measurement result display area darkly and display the guides in the peripheral area lightly, thereby changing the display mode of the guides for each display area. Thereby, the display content which a user can change by touch slide operation can be grasped | ascertained at once.

  Further, when the user starts a touch slide operation, only the guide corresponding to the operation direction accepted by the display control unit is displayed, and the other guides are deleted. However, even when the user is performing a touch slide operation, the display control unit may continue to display all guides indicating directions in which the touch slide operation is possible.

  Furthermore, when the numerical value range is changed, for example, when the upper limit value or the lower limit value of the numerical value range reaches the settable boundary value, the display control unit may delete the corresponding guide. The settable numerical range is, for example, a numerical range from 0 to 14 for pH. If it is time, it is a numerical range from 0 second to the last measurement time (or the time after the predetermined measurement time has passed since the last measurement time).

  This will be specifically described. FIG. 14 shows an example when the user performs a touch slide operation along the time axis. The user touches and slides leftward along the time axis to display a past time series graph (FIG. 14A → FIG. 14B). When the lower limit of the numerical range of the time axis reaches 0 seconds, there is no past measurement data (FIG. 14C). Therefore, the display control unit deletes the guide indicating the left direction, and informs the user that the numerical value range of the time axis cannot be moved further leftward. The same applies to the case where the numerical range of the time axis is enlarged or reduced, or the numerical range of the measurement axis or the numerical range of the scale is changed. If it is such, the user can intuitively understand the direction in which the display content cannot be changed even if the touch slide operation is input.

  Furthermore, although the display control unit displays an arrow as a guide, it may display a text representing display content that can be changed, or may display a reduced image such as a thumbnail of the switching destination display screen. .

  In the present embodiment, when the numerical range of the measurement axis is enlarged or reduced, the intermediate value of the measurement axis before the change is set as the intermediate value of the measurement axis after the change. However, the present invention is not limited to this. For example, when the user performs a touch slide operation, the measurement value indicated by the position where the user first performed the touch operation may be set as the intermediate value of the measurement axis after the change. Specifically, when the user first performs a touch operation on the position indicated by 6.207 and performs a touch slide operation along the measurement axis, 6.207 is set as the intermediate value of the measurement axis after the change.

  In addition, when the user performs a touch slide operation, the measurement value at the time indicated by the position where the user first performed the touch operation may be set as the intermediate value of the measurement axis after the change. Specifically, when the user first performs a touch operation at a position indicating 60 seconds and performs a touch slide operation along the measurement axis, the measurement value at the time of 60 seconds is set as the intermediate value of the measurement axis after the change. . The same applies when changing the numerical range of the time axis and the numerical range of the scale. In such a case, when the time series graph is enlarged or reduced, the user can specify an intermediate value by an intuitive and easy-to-understand operation.

  For example, when the pH measurement result is calculated with a numerical value with 3 digits after the decimal point, the intermediate value in the numerical range of the scale is adjusted to a numerical value with 2 digits after the decimal point, and compared with the pH measurement value, it is a significant number. It may be set as a numerical value obtained by subtracting the number of digits. The case where the analog display screen is displayed will be described as an example. When the numerical value range of the scale is moved and the average value of the lower limit value and the upper limit value of the numerical value range of the scale is 6.172, 6.17, which is the nearest two-digit numerical value, is set as the intermediate value. The same applies to the case of changing the numerical range of the measurement axis or time axis on the graph display screen.

  Furthermore, when the display control unit is displaying the graph display screen, when the user performs a touch slide operation along the time axis or the measurement axis, the display control unit only performs automatic setting for the numerical range of the coordinate axis for which the touch slide operation has been performed. Was canceled and the automatic setting for the numerical range of the other coordinate axis was maintained. However, the present invention is not limited to this, and when the user performs a touch slide operation along the time axis or the measurement axis, automatic setting for both the time axis and the numerical range of the measurement axis may be canceled.

  In addition, when the user performs a touch slide operation in the right direction instead of the left direction along the time axis, the display control unit displays a past time series graph. The user may perform a touch slide operation. Furthermore, the display is of a single touch system that can input the position of only one point at a time, but may be of a multi-touch system that can input the position of a plurality of points simultaneously. In addition, the present invention is not limited to the above-described embodiments, and may be configured by appropriately combining some or all of the various configurations described above without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 100 ... Measuring apparatus 10 ... Probe 33 ... Display control part 40 ... Display 50 ... Guide W1 ... Graph display screen W2 ... Analog display screen W3 ... Numerical display screen A1 ... Measurement result display area A2 ... Peripheral area A3 ... Variable display area

Claims (3)

A measuring device having a display control unit that displays on a display a measurement result obtained from a probe that measures at least one of pH, oxidation-reduction potential, ion concentration, and conductivity in contact with a measurement object Yes,
The display control unit displays a numerical value display screen for displaying the measurement result as a numerical value, and an analog display screen for displaying a series of scales with values at required locations and indicating means for indicating positions on the scale corresponding to the measurement results And a graph display screen that displays the measurement results as a time series graph in a coordinate system in which one axis indicates time and the other axis indicates measurement results, and at least two display screens are displayed in a switchable manner. There,
The display is a touch panel display;
In conjunction with the touch slide operation on the display, the display control unit moves the display screen displayed before the touch slide operation to the outside of the display area of the display, and another display screen accordingly. Each display screen is continuously switched by moving the display area within the display area ,
Wherein the display control unit, in the middle switching of the respective display screens, and wherein the numerical values of the numerical display the measurement results of the screen on the display area, the scale of the analog display screen, or, the time series of the graph display screen of the graph it is configured to display two with either simultaneously,
The measurement apparatus, wherein the measurement result displayed in the display area displays the latest measurement result. When the slide distance of the touch slide operation is a predetermined value or more, the display control unit displays the another display screen,
The measurement apparatus according to claim 1, wherein when the slide distance of the touch slide operation is less than a predetermined value, the display control unit displays a display screen that was displayed before the touch slide operation. The measuring apparatus according to claim 1, wherein when the display is touched, the display control unit displays a guide indicating a movable direction of the display screen.