JP5889563B2 - Water quality analyzer, water quality analyzer management device, water quality analyzer program, water quality analyzer management program and water quality analysis system - Google Patents

Description

  The present invention relates to a water quality analyzer, a water quality analyzer management device, a water quality analyzer program, a water quality analyzer management program, and a water quality analysis system.

  For example, at process sites such as water treatment plants, water quality analyzers are installed at various sites, and measurement data obtained by these water quality analyzers is sent to data center rooms such as monitoring rooms via converters (transmitters). In addition, a water quality analysis system that monitors the measurement data at each site has been introduced.

  Since this water quality analysis system uses a plurality of water quality analyzers, management such as maintenance is troublesome. Here, in the management of maintenance and the like, it is expected that the maintenance and the like of each water quality analyzer can be easily managed by grasping in what situation each water quality analyzer is used.

  And in order to grasp | ascertain the use condition of a water quality analyzer, it is possible to preserve | save all the measurement data in operation in a water quality analyzer or a converter.

  However, the capacity of the memory provided in the water quality analyzer or the converter is limited, and there is a problem that it is not possible to save all measurement data. Although it is conceivable to store the measurement data within the range allowed by the capacity of the memory, this causes a leak in the measurement data, and the usage situation cannot be accurately grasped.

  Although it is conceivable to store the measurement data in a memory provided outside the water quality analyzer or the converter, it is necessary to increase the memory, which causes a problem in terms of cost and size. Furthermore, it is conceivable to store all measurement data of each water quality analyzer in the data center room, but it is not practical because it is necessary to always communicate with each water quality analyzer.

JP 2010-160102 A

  Accordingly, the present invention has been made to solve the above problems all at once, so that the usage status of the water quality analyzer can be easily grasped without storing a large amount of measurement data in the water quality analyzer. Doing it is the main desired task.

  That is, the water quality analyzer according to the present invention includes an operation time accumulating unit for accumulating the operation time for each of a plurality of classification ranges obtained by classifying the usage status of the sensor device according to the measurement result range, and the operation time as a parameter. A data storage unit for storing data to be stored, and a data output unit for outputting data stored in the data storage unit. Note that the data using the operation time as a parameter includes data indicating the operation time itself in addition to data indicating information calculated using the operation time.

  In such a case, since the data with the operation time obtained by the operation time accumulating unit as a parameter is stored, the amount of data to be saved can be significantly reduced as compared with the case of saving the measurement data. it can. Further, when it is desired to grasp the usage status of the water quality analyzer, the usage status of the water quality analyzer can be instantly grasped only by acquiring data using the operation time as a parameter without analyzing the measurement data. In this way, it is possible to accurately grasp the usage status of the water quality analyzer, so it is possible to grasp, for example, that the water quality analyzer is used only in a specific usage status, and the usage status of other water quality analyzers. In consideration of this, it is possible to easily make a decision such as changing the installation location of these water quality analyzers.

  It is conceivable that the item of measurement affects the sensor device. Further, it is desirable that the classification range is obtained by classifying the measurement results of the sensor device by a concentration range. For example, it is conceivable that the concentration range is the pH range. Since the sensor device of the water quality analyzer is used by being immersed in water, the influence on the sensor device differs depending on the concentration range of the measurement liquid. By using the concentration range as the classification range, it is possible to prevent a certain sensor device from being used only in a specific concentration range. Further, for example, in a sensor device having a large operation ratio on the acidic side, it is possible to obtain information on the deterioration rate when used on the acidic side.

  In order to reduce the amount of data to be stored in the water quality analyzer and to obtain a clear understanding of the usage status of the sensor device simply by acquiring the data stored in the water quality analyzer, A total operation time accumulating unit for accumulating time, and an operation ratio calculating unit for calculating an operation ratio of the operation time for each classification range with respect to the total operation time of the sensor device, wherein the data storage unit is operated for each classification range. It is desirable to store operation ratio data indicating the ratio.

  The water quality analyzer management apparatus for managing a water quality analyzer of the present invention is characterized in that it acquires data from data storage units of a plurality of water quality analyzers. If this is the case, the water quality analyzer management device can easily grasp the usage status of the water quality analyzer without storing a large amount of measurement data in the water quality analyzer. It becomes easy to maintain and replace.

  In addition, a total operation time accumulating unit that accumulates the operation time of the sensor device is provided, and the data storage unit manages a plurality of water quality analyzers that store total operation time data indicating the total operation time. A management device, a data acquisition unit that acquires the operation time data indicating the operation time and the total operation time data from the data output unit, and a ratio of the operation time for each classification range with respect to the total operation time of the sensor device It is desirable to include an operation ratio calculation unit for calculating. If it is such, since the arithmetic processing accompanying calculation of a driving | running ratio can be performed with a management apparatus, it is not necessary to improve the processing capacity of a water quality analyzer, for example, and it can comprise at low cost.

  It is desirable to provide a display control unit that displays a list of information indicated by data having the operation time as a parameter for each of a plurality of classification ranges for each of the plurality of water quality analyzers. Thus, by displaying a list of information (including the operation ratio) indicated by the data with the operation time as a parameter for each of a plurality of classification ranges for each of a plurality of water quality analyzers, the usage status of the plurality of water quality analyzers can be determined. It can be grasped instantly.

  The display control unit displays a list of information indicated by data having the operation time as a parameter for each of a plurality of classification ranges for each of the plurality of water quality analyzers, and combines the total operation time of each of the plurality of water quality analyzers. It is desirable to be displayed. It becomes possible to make a judgment based on a combination of the total operation time and the usage status, and the state of the water quality analyzer can be judged more accurately.

  According to the present invention configured as described above, it becomes possible to easily grasp the usage status of the water quality analyzer without storing a large amount of measurement data in the water quality analyzer, and maintenance and replacement of the water quality analyzer can be performed. It becomes easy to do.

1 is a schematic configuration diagram of a water quality analysis system according to an embodiment of the present invention. The (A) apparatus block diagram and (B) functional block diagram of the instruction | indication converter of the embodiment. (A) apparatus block diagram and (B) functional block diagram of the management apparatus of the embodiment. The screen figure of the measured value display apparatus of the digital format of the embodiment. The screen figure of the measured value display apparatus of the graph format of the embodiment. The screen figure of the driving | operation ratio list display screen of the embodiment. The screen figure of the calibration start screen of the embodiment. The screen figure of the calibration end screen of the embodiment. The screen figure of the calibration history screen of the embodiment. The screen figure of the error list screen of the embodiment. The screen figure of the error detail screen of the embodiment.

  An embodiment of a water quality analysis system according to the present invention will be described below with reference to the drawings.

  The water quality analysis system 100 according to the present embodiment is for controlling the process by analyzing the water quality at each site in a process site such as a water treatment facility, and is provided at each site as shown in FIG. A plurality of water quality analyzers 2, and a central controller 5 that is provided in a data center room such as an instrument room, acquires the measurement results of the plurality of water quality analyzers 2, displays them on a display, and performs process control; It has.

  The water quality analyzer 2 includes a sensor device 3 that is immersed in a measurement solution at various locations on the site, and a display that is provided corresponding to the sensor device 3 and displays a measurement result obtained from the sensor device 3. In addition, it has an instruction converter 4 for transmitting the measurement results and other signals from the water quality analyzer to the central control unit 5. The sensor device 3 and the instruction converter 4 are connected by a signal cable.

  The sensor device 3 has at least one of measurement items obtained by converting pH, oxidation-reduction potential (ORP), dissolved oxygen (DO), electrical conductivity (conductivity), temperature, turbidity, water depth, or measurement items thereof. One is measured. For example, in the case of measuring pH, ORP, and DO, the sensor device 3 includes a pH sensor, an ORP sensor, and a DO sensor.

  The instruction converter 4 displays the measurement results (for example, pH and temperature) obtained from the sensor device 3 on a display provided on the front surface of the instruction converter. The instruction converter 4 is connected to a serial communication cable such as RS-485, for example, and converts the measurement data indicating the measurement result and other signals obtained from the sensor device 3 to DC 4 to 20 mA, for example. Are transmitted to the central control unit 5.

  The central control device 5 is a dedicated or general-purpose computer having a CPU, a memory, a converter, an input / output interface and a converter, and the CPU operates according to a control program stored in a predetermined area of the memory, thereby In addition to the function of performing control of the means and information processing, arithmetically processing the measurement data transmitted from the instruction converter 4 and displaying it on the display, it also has a function of warning when the measurement data is determined to be abnormal. By centrally managing the measurement data obtained by the plurality of water quality analyzers 2 by the central controller 5, the entire process site such as a processing facility is monitored and controlled.

  Therefore, the instruction converter 4 of the water quality analyzer 2 of the present embodiment includes a CPU 401, a memory 402, a converter 403, an input / output interface 404, a display 405, a wireless communication device 406, and the like as shown in FIG. 2 is a dedicated or general-purpose computer, and the CPU 401 operates according to the water quality analyzer program stored in a predetermined area of the memory 402 to control the respective means and perform information processing, as shown in FIG. The operation time accumulation unit 41, the total operation time accumulation unit 42, the operation ratio calculation unit 43, the data storage unit 44, and the data output unit 45 are exhibited. Note that the instruction converter 4 of this embodiment includes a wireless communication device 406 capable of mesh-type multi-pop communication. In this embodiment, the frequency band is 2.4 GHz and the transmission output is 10 mW or less. 2.4 GHz band wireless transceiver. Each instruction converter 4 is configured to function as a relay station for other instruction converters 4 with respect to a water quality analyzer management device 6 to be described later. As described above, the instruction converter 4 according to the present embodiment transmits the measurement data of the sensor device 3 to the central control device 5 and transmits the measurement data of the sensor device 3 and the sensor management data (for example, operation ratio data described later). It is comprised so that it may transmit to the management apparatus 6 for water quality analysis.

  The operation time accumulating unit 41 accumulates the operation time for each of a plurality of classification ranges obtained by classifying the usage status of the sensor device 3 according to the range of measurement results. Here, the plurality of classification ranges are obtained by dividing the measurement results of the sensor device 3 into a plurality of concentration ranges, and when the sensor device 3 is a pH sensor, “less than pH 2.0”, “ pH 2.0 to 5.5 "," pH 5.5 to 7.0 "," pH 7.0 to 8.5 "," pH 8.5 to 12 "," pH 12 or more "and the like. In addition, measurement items other than pH can be divided into a plurality of numerical ranges and classified. It is also conceivable to classify the operating temperature range by dividing it into a plurality of temperature ranges such as “0-10 ° C.”, “10-20 ° C.”, “20-30 ° C.”, and the like. As described above, the classification may be performed using the measurement result of the sensor device 3 itself that is the cumulative target of the operating time, or may be classified using the measurement result of the sensor device other than the cumulative target of the driving time.

  Further, the operation time accumulating unit 41 determines to which classification range a numerical value that is stable for a certain period of time, for example, 5 seconds or more belongs, and the stable time of the numerical value (stable time) belongs to the numerical value. Accumulated as the operating time of the classification range. In addition to the stabilization time, the time until the numerical value is stabilized (variation time) may be combined. The operation time data indicating the operation time for each classification range accumulated by the operation time accumulation unit 41 is output to the operation ratio calculation unit 43. The operation time data is stored in a predetermined area set in the memory 402, for example, the data storage unit 44.

  The total operation time accumulating unit 42 accumulates the total operation time after the sensor device 3 of the water quality analyzer 2 starts operation. The total operation time data indicating the total operation time accumulated by the total operation time accumulation unit 42 is output to the operation ratio calculation unit 43. The total operation time data is stored in a predetermined area set in the memory 402, for example, the data storage unit 44.

  The operation ratio calculation unit 43 calculates the operation ratio of the operation time for each classification range with respect to the total operation time of the water quality analyzer 2. Specifically, the operation ratio calculation unit 43 acquires the total operation time data indicating the total operation time, acquires the operation time data indicating the operation time for each classification range, and calculates the operation ratio (%) for each classification range. calculate. The driving ratio data indicating the driving ratio for each classification range is stored in the data storage unit 44 set in a predetermined area of the memory 402.

  And the data output part 45 comprised from the radio | wireless transmitter 406 grade | etc., Of the instruction | indication converter 4 is the operation ratio stored in the data storage part 44, when the request | requirement from the below-mentioned water quality analyzer management apparatus 6 is received. Data is wirelessly transmitted to the water quality analyzer management device 6. The operation ratio calculation unit 43 may calculate the operation ratio using a request from the water quality analyzer management device 6 as a trigger, or may calculate the constant operation ratio. The driving ratio may be calculated periodically. The data output unit 45 can also output the operation time data and the total operation time data stored in the data storage unit 44 to the water quality analyzer management device 6.

  And the water quality analysis system 100 of this embodiment is provided with the management apparatus 6 for water quality analyzers for managing the some water quality analyzer 2, as shown in FIG.

  The water quality analyzer management device 6 is a portable terminal such as a portable computer for performing various operations such as maintenance of the sensor device 3, and wirelessly communicates with the instruction converter 4 connected to each sensor device 3. Is. The water quality analyzer management device 6 functions as a water quality analyzer display device for displaying the measurement result obtained from the water quality analyzer 2 on the display.

  As shown in FIG. 3A, the specific configuration of the water quality analyzer management device 6 includes a CPU 601, a memory 602, a converter 603, an input / output interface 604, a display 605, a wireless communication device 606, and input means 607. And a dedicated or general-purpose computer. The CPU 601 operates in accordance with a water quality analyzer management program stored in a predetermined area of the memory 602 to control each of the above means and perform information processing. As shown in FIG. A data receiving unit 61 for receiving the received data, a data storing unit 62 for storing the received measurement data and various data, a selection signal acquiring unit 63 for acquiring a calibration point selection signal for selecting a calibration point number for multi-point calibration, And the function as the display control part 64 which displays the received measurement data and various data on the display 605 is exhibited.

  The water quality analyzer management device 6 has a data collection function and a maintenance function. Hereinafter, each function will be described, and each function of the data acquisition unit 61, the data storage unit 62, the selection signal acquisition unit 63, and the display control unit 64 will be described.

  First, the data collection function of the water quality analyzer management device 6 will be described.

  The data acquisition unit 61 of the water quality analysis solution management device 6 receives measurement data indicating the measurement result of each water quality analyzer 2 and also receives setting data indicating a set value of each water quality analyzer 2. The received measurement data and setting data are stored in the data storage unit 62. The water quality analyzer management device 6 acquires the installation data so that the setting of the specific water quality analyzer 2 can be applied to other water quality analyzers 2.

  Further, the display control unit 64 selectively selects a digital measurement value display screen W1 shown in FIG. 4 and a graph measurement value display screen W2 shown in FIG. 5 on the display 605 based on the received measurement data. To display. The measurement value display screen W2 in the form of a graph displays measurement data as a time series graph (so-called trend graph) in a coordinate system in which one axis is a time axis indicating time and the other axis is a measurement axis indicating measurement results. It has a graph display area W21. In this graph display area W21, a plurality of measurement data of a plurality of water quality analyzers 2 are superimposed and displayed in a graph. At this time, the plurality of time series graphs are displayed so that the colors of the lines are different from each other.

  Here, the display control unit 64 is configured to change the colors of the graphs in accordance with a user input operation. For example, when the user operates a predetermined button, the displayed graph always has a new color. In a case where three time-series graphs are always displayed in the graph display area, it is conceivable to correspond with five colors.

  Further, the display control unit 64 displays the latest measured value and temperature of the water quality analyzer 2 corresponding to the time-series graph displayed in the graph around the graph display area W21 (upper part in FIG. 5). The state of the analyzer 2 is displayed. In FIG. 5, it is displayed that two of the three water quality analyzers 2 are in error or communication is impossible, and only one graph is displayed in the graph display area W21.

  Moreover, the management apparatus 6 for water quality analyzers is configured to be able to acquire operating states (operating states) of a plurality of water quality analyzers 2 (sensor devices 3). As described above, the water quality analyzer 2 of the present embodiment has the operation ratio data indicating the operation ratio for each of a plurality of classification ranges, so the data acquisition unit 61 includes the wireless transmitter 406 of each water quality analyzer 2. The time ratio data wirelessly transmitted from the (data output unit 45) is received.

  And the display control part 64 displays the driving | operation ratio list display screen W3 shown in FIG. 6 based on the time ratio data received by the data receiving part 61. FIG.

  This operation ratio list display screen W3 displays a list of operation ratios for each of a plurality of classification ranges for each of a plurality of sensor devices 3, and specifically, the sensor devices 3 are arranged in a row direction (vertical direction). The type is displayed and the operation ratio (%) of each classification range is displayed in the column direction (horizontal direction). The display control unit 64 also displays a list of the total operation time of each sensor device 3 along with the operation ratios of the plurality of classification ranges. In addition, the display control unit 64 also lists the maximum measurement value, minimum measurement value, average measurement value, maximum use temperature, minimum use temperature, use average temperature, etc. of each sensor device 3 from the data obtained from each sensor device 3. indicate.

  FIG. 6 shows a mode in which not all information can be displayed on the display 605, and the display control unit 64 displays the scroll bar W31 so that the display screen W3 can be scrolled by the user's input operation. It is composed. In addition, the display control unit 64 includes a search button for searching for a predetermined sensor device 3, a search release button, a sort button for sorting the sensor devices 3, and a sort release button on the operation ratio list display screen W3. indicate.

  In addition, the data acquisition unit 61 receives an instrument mode, an error, a contact output state, a transmission output, an external input, and the like from the instruction converter 4. As described above, the water quality analyzer management device 6 centrally manages the meter status of the water quality analyzer 2 and records (logging) the measurement data during communication connection and the operation status of the water quality analyzer 2 in time series. It has a function.

  Next, the maintenance function of the water quality analyzer management device 6 will be described.

  The selection signal acquisition unit 63 of the water quality analyzer management device 6 selects the number of calibration points (one point, two points, three points) for multi-point calibration (one point calibration, two point calibration, three point calibration) in the sensor device 3. A calibration point selection signal for acquiring the calibration point is acquired. Based on the acquired calibration point selection signal, the display control unit 64 displays a plurality of calibration solution measurement results corresponding to the selected calibration points side by side on the same screen.

  The selection signal acquisition unit 63 acquires a calibration point selection signal generated when a user such as a proofreader operates the input unit 607 of the management device 6. Here, the number of calibration points is determined depending on the type and application of the sensor device 3 to be calibrated. For example, when performing both zero adjustment and span adjustment of the DO sensor, or pH 4, pH 7, or pH 9 in the pH sensor. In the case where adjustment is performed by, for example, 2-point calibration or 3-point calibration is selected.

  Then, as shown in FIG. 7, the display control unit 64 displays on the display 605 a calibration start screen W4 having a number of graph display areas W41 corresponding to the selected number of calibration points.

  FIG. 7 shows a case where two graph display areas W41 (one-liquid graph display area and two-liquid graph display area) are displayed side by side in the left-right direction in the two-point calibration. One graph is displayed in one graph display area W41. Although not shown, when one-point calibration is selected, one graph display area W41 is displayed, and when three-point calibration is selected, three graph display areas W41 are displayed side by side in the horizontal direction. To do. The calibration start screen W4 displays the calibration state (“Prepare pH 7 solution”), sensitivity (mV / pH), asymmetry potential (mV), and calibration start button. In this state, the sensor device 3 is calibrated.

  FIG. 8 shows a calibration end screen W5 after the calibration is completed. On the calibration end screen W5, the measurement results of the two calibration solutions in the two-point calibration are displayed side by side, and the calibration state (“calibration end”), sensitivity (mV / pH), and asymmetry potential (mV) Is displayed. As the sensitivity and the asymmetric potential, values calculated by the management device 6 are displayed as a result of the two-point calibration.

  Here, in the graph display area W41, the display control unit 64 displays the measurement result of the calibration liquid, the measurement axis in which one axis (horizontal axis) indicates the time and the other axis (vertical axis) indicates the measurement result. Is displayed as a time series graph in the coordinate system. When displaying a plurality of graph display areas W41, each graph display area W41 has substantially the same size, and the difference between the upper limit value and the lower limit value of the numerical value range on the measurement axis, that is, the resolution of the measurement axis is substantially the same. It is said. As described above, since the graph display area W41 has substantially the same size and substantially the same resolution, the curve shapes of the measurement results of the respective calibration solutions can be compared as they are, and the response speed in the measurement of each calibration solution can be easily compared. can do.

  Further, as shown in FIG. 8, the display control unit 64 changes the scale of the measurement axis so that the convergence value of the measurement result of the calibration liquid or a value in the vicinity thereof becomes the median value of the measurement axis. The measurement results are displayed as a time series graph. Note that the degree of scale change is, for example, 0.2. Here, since the plurality of time series graphs are displayed side by side in the left-right direction, the median value of the measurement axes of each time series graph is displayed so as to be substantially on the same straight line on the display screen. Become. In FIG. 8, the median value of the measurement axis of the first liquid graph display area W41 is 7.0, and the median value of the measurement axis of the second liquid graph display area W41 is 4.0. These median height positions are the same. With this configuration, it becomes easy to compare the response curve shapes of the first liquid time series graph and the second liquid time series graph.

  When displaying the measurement results after calibration as a time series graph, the convergence value or the value near it is set to the median value of the measurement axis, but the measurement results during calibration are displayed on the time series graph. In this case, the scale of the vertical axis is changed so that the measurement value output from the sensor device 3 or a value in the vicinity thereof becomes the median value of the measurement axis. That is, the latest measured value obtained during calibration or a value in the vicinity thereof is always the median value of the measurement axis.

  Further, the display control unit 64 displays a calibration history screen W6 as shown in FIG. The calibration history screen W6 displays past calibration data, and can switch between a calibration history data display screen (not shown) and a calibration history graph display screen W61. When the sensor device 3 is a pH sensor, the calibration history data display screen displays a list of asymmetry potential and sensitivity values, and the calibration history graph display screen W61 displays the asymmetry potential and sensitivity as a graph. is there. In this graph, the horizontal axis indicates the previous number of calibrations, and the vertical axis indicates the asymmetric potential or sensitivity.

  Here, in the calibration history graph display screen W61 of the calibration history screen W6, the numerical range of the vertical axis is the sensitivity or the asymmetry potential within the allowable range in the calibration of the pH sensor. In other words, the calibration result that is not displayed on the graph exceeds the allowable range. Note that the sensitivity calibration allowable range in FIG. 9 is 40 mV / pH to 80 mV / pH. In addition, within this calibration allowable range, it is also possible to display a unique error allowable range preset by the user (a threshold value that serves as a guide for replacement conditions of the sensor device 3). For example, in terms of sensitivity, the allowable error range is 50 mV / pH to 70 mV / pH. As a result of the calibration, if it is not within the allowable error range, it can be determined to replace the sensor device 3 with a new one. In addition, the display control unit 64 recommends sensor replacement information indicating a calibration cycle that is a cycle of calibrating each sensor device 3, a replacement history that is a history of replacing each sensor device 3, a period during which each sensor device 3 should be replaced, and the like. Is also displayed. Further, the display control unit 64 can also display past calibration graphs related to calibration in a superimposed manner, and can compare them with past data.

  Further, the display control unit 64 displays an error list screen W7 shown in FIG. The error list screen W7 displays a list of all errors occurring in the water quality analyzer 2, and displays them in order from the highest priority of the error contents. FIG. 10 shows a case where the images are displayed in order from the top. Here, an error having a high priority means that if this error is dealt with, other errors are resolved or easily resolved. By displaying in order of priority in this way, efficient response to errors becomes possible by handling from the top. As specific list display contents, error codes and error names are displayed in a list. Note that data indicating the error code, error name, and priority is stored in the data storage unit 62 in advance.

  When the user selects a high priority error (E-21 / temperature sensor disconnection in FIG. 10), the display control unit 64 displays an error detail screen W8 shown in FIG. The error detail screen W8 also displays error cause candidates, action details for eliminating the error cause, and condition contents for the action as necessary. Note that the data indicating the treatment content and the condition content is stored in the data storage unit 62 in advance. In addition, the display control unit 64 can display a past error history.

  Next, a data management method for exchanging two sensor devices 3 will be described.

  In the present embodiment, since the measurement data cannot be stored in the instruction converter 4, the measurement data is stored during communication connection between the water quality analyzer management device 6 and the water quality analyzer 2, thereby maintaining the sensor device 3. And management. Here, when the sensor device A and the sensor device B are exchanged, the measurement data is obtained as measurement data of the sensor device A different from the actual sensor device B depending on the communication connection state between the instruction converter 4 and the management device 6. End up losing data. Therefore, in order to minimize data loss, the data management method differs in the following cases (1) to (3).

(1) When exchanging the sensor device A and the sensor device B of the instruction converter 4 while the instruction converter 4 is in communication connection with the management device 6 (2) The sensor device A and the sensor of the instruction converter 4 After exchanging the device B, when the sensor device A and the sensor device B are exchanged on the setting of the management device 6 and the instruction converter 4 is connected by communication with the management device 6 (3) On the setting of the management device 6 After exchanging the sensor device A and the sensor device B, the sensor device A and the sensor device B of the instruction converter 4 are replaced, and the instruction converter 4 is connected to the management device 6 by communication.

  In the case of (1), the data of the sensor device A of the instruction converter 4 is stored in the management device 6, and the data of the sensor device B input to the management device 6 is written into the instruction converter 4.

  In the case of (2), the data of the sensor device B is stored in the data of the sensor device A of the instruction converter 4 in the instruction converter 4 until the management device 6 is connected for communication. When the management device 6 is connected by communication, the past history of the sensor device A is stored in the management device 6 and the data of the sensor device B input to the management device 6 is written in the instruction converter 4.

  In the case of (3) above, the sensor device B and the instruction converter 4 on the setting of the management device 6 are connected before the sensor device A and the sensor device B actually connected to the instruction converter 4 are exchanged. Since the sensor device A is different, the data of the sensor device B is stored in the instruction converter 4 as the sensor device A until the sensor device A and the sensor device B are actually exchanged. When the management device 6 is connected for communication, it is stored in the management device 6 as the past history of the sensor device A, and the data of the sensor device B is written in the instruction converter 4.

  According to the water quality analysis system 100 configured as described above, since the operation ratio data indicating the operation ratio of the operation time for each classification range with respect to the total operation time of the sensor device 3 is stored in the instruction converter 4, the measurement data is saved. Compared to the case, the amount of data to be saved can be significantly reduced. In addition, when it is desired to grasp the usage status of the sensor device 3, the usage status of the sensor device 3 can be instantly grasped only by acquiring the operation ratio data without analyzing the measurement data. Since the usage status of the sensor device 3 can be accurately grasped in this way, for example, it is possible to grasp that the sensor device 3 is used only in a specific usage status, and the usage status of other sensor devices 3. In consideration of the above, it is possible to facilitate determination such as changing the installation location of the sensor device 3.

  The present invention is not limited to the above embodiment.

  For example, in the embodiment, the instruction converter has an operation time accumulating unit, an operation ratio calculation unit, and an operation ratio data storage unit, but the instruction converter stores the operation time accumulation unit and the operation time data. You may have a data storage part to store. In this case, the management device acquires the operation time data and the total operation time data, acquires them from the instruction converter, and calculates the operation ratio. Even in such a case, the usage status of the water quality analyzer can be easily grasped without storing a large amount of measurement data in the instruction converter.

  In addition, although a plurality of measurement results are displayed side by side on the same screen, a plurality of calibration solution measurement results may be displayed in one graph display area. Even in such a case, the measurement results of a plurality of calibration solutions are displayed on the same screen, and the calibration results of a plurality of calibration solutions can be confirmed simultaneously. As a result, it is not necessary to perform a backtracking operation for redisplaying the calibrated calibration results, and the degree of reaction of the water quality analyzer 2 with respect to a plurality of calibration solutions can be easily compared. In addition, a plurality of graph display areas may be displayed vertically.

  Moreover, in the said embodiment, although the instruction | indication converter 4 transmits data, such as measurement data and sensor information data, to the water quality analyzer management apparatus 6 by radio | wireless communication, those data are transmitted with a communication cable. You may comprise as follows.

  Furthermore, the management device 6 of the above embodiment can perform group setting for the water quality analyzers 2 (sensor devices 3) provided at various locations on the site, and can perform management for each group. In this case, for example, the display control unit may display a list of operation ratios of the water quality analyzer 2 (sensor device 3) included in the group for each group on the operation ratio list display screen.

  In addition, the management device 6 may be able to manage the books of the water quality analyzers 2 (sensor devices 3) provided at various sites. In this case, book data indicating a management book such as a monthly report is stored in the management device 6, and the display control unit 64 displays the management book on the screen based on this book data. Using this management book, the user performs input operations to manage the water quality analyzers 2 (sensor devices 3) at various sites. The management device 6 uses the book management function to manage the water quality analyzer 2 that is initially planned by the management device 6 (for example, the water quality analyzer 2 of the company's product). A sensor (for example, a flow meter, a pressure gauge, or a water quality analyzer manufactured by another company) may be displayed on the screen by manually inputting the sensor information of the analyzer. Further, a management book for managing them may be displayed and managed.

  In addition, the management device 6 stores instruction data indicating an instruction manual for each model, troubleshooting data indicating troubleshooting (Q & A) for each model, maintenance data indicating a maintenance guide for each model, and the like. These display screens are displayed on the display by the user's selection. In addition, the display control unit 64 displays a menu selection screen for performing various functions of the embodiment. The display control unit 64 displays various screens according to the menu selected on the menu selection screen.

  Moreover, in the said embodiment, although the water quality analyzer 2 has the operation ratio calculation part 43, the management apparatus 6 may have an operation ratio calculation part. In this case, the data acquisition unit 61 of the management device acquires the operation time data and the total operation time data from the data output unit 45 of the water quality analyzer 2, and the operation ratio calculation unit uses the acquired data to The ratio of the operation time for each classification range to the total operation time is calculated.

  In addition, in the said embodiment, although the management apparatus 6 for water quality analyzers served as the display apparatus for water quality analyzers, you may provide the display apparatus for water quality analyzers separately.

  Further, the water quality analyzer of the above embodiment is configured by connecting the sensor device to the instruction converter via the signal cable, but the sensor device and the instruction converter are physically connected without using the signal cable. An integral configuration may be used.

  In addition, it goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 100 ... Water quality analysis system 2 ... Water quality analyzer 3 ... Sensor apparatus 4 ... Instruction converter 41 ... Operation time accumulation part 42 ... Total operation time accumulation part 43 ... Operation ratio Calculation unit 44 ... data storage unit 45 ... data output unit 6 ... water quality analyzer management device 61 ... data acquisition unit 64 ... display control unit

Claims (10)

A sensor device for measuring at least one of water quality measurement items (excluding water temperature);
The sensor device is time operation is immersed in the measuring solution, and the operating time accumulation unit to accumulate for each of a plurality of classifications range of classified by the scope of the measurement results of the sensor device,
A data storage unit for storing data having the operation time as a parameter;
E Bei a data output unit for outputting data stored in the data storage unit,
Water spectrometer before Symbol data output unit, wherein the operating time accumulation unit and outputs a signal relating to the operating time data indicating the operating time of each of the classification range cumulatively.   The water quality analyzer according to claim 1, wherein the item of measurement affects the sensor device. The total operating time accumulation unit to accumulate the operating time of the sensor device,
Comprising a driving percentage calculation unit that calculates a driving percentage of the operating time of the sensor device of each classification range to the total operating time of the sensor device,
The water quality analyzer according to claim 1 or 2, wherein the data storage unit stores operation ratio data indicating an operation ratio for each classification range. A water quality analyzer management apparatus for managing a plurality of water quality analyzers according to any one of claims 1 to 3,
A data acquisition unit for acquiring operation time data indicating the operation time for each of the classification ranges accumulated by the operation time accumulation unit of the plurality of water quality analyzers output from the data output unit of the plurality of water quality analyzers; Equipped water quality analyzer management device. A water quality analyzer management apparatus for managing a plurality of water quality analyzers according to claim 1,
The water quality analyzer is
Further comprising a total operating time accumulation unit to accumulate the operating time of the sensor device,
The data storage unit of the water quality analyzer is configured to store total operation time data indicating a total operation time ,
The water quality analyzer management device comprises:
A data acquisition unit for acquiring the operation time data indicating the operation time and the total operation time data from the data output unit;
A water quality analyzer management apparatus comprising: an operation ratio calculation unit that calculates a ratio of an operation time for each classification range to a total operation time of the sensor device. The water quality analyzer management apparatus according to claim 5, further comprising a display control unit that displays a list of information indicated by data having the operation time as a parameter for each of a plurality of classification ranges for each of the plurality of water quality analyzers.   The display control unit displays a list of information indicated by data having the operation time as a parameter for each of a plurality of classification ranges for each of the plurality of water quality analyzers, and displays the total operation time together. Item 7. The water quality analysis management device according to Item 6. A program used for a water quality analyzer having a sensor device for measuring at least one of water quality measurement items (excluding water temperature),
The operating time of the sensor device is immersed in the measurement solution, the parameters and the operating time accumulation unit, the operating time accumulated for each of a plurality of classifications range of classified by the scope of the measurement results of the sensor device A computer is provided with the functions of a data storage unit for storing data and a data output unit for outputting data stored in the data storage unit ,
The water quality analyzer program characterized in that the data output unit outputs a signal relating to the operation time data indicating the operation time for each of the classification ranges accumulated by the operation time accumulation unit . A water quality analyzer management program for managing a plurality of water quality analyzers according to any one of claims 1 to 3,
A data acquisition unit for acquiring operation time data indicating the operation time for each of the classification ranges accumulated by the operation time accumulation unit of the plurality of water quality analyzers output from the data output unit of the plurality of water quality analyzers ; A management program for a water quality analyzer characterized by being provided in a computer. A water quality analyzer according to any one of claims 1 to 3,
A water quality analysis system comprising the water quality analyzer management device according to claim 4.