JP2008229532A - Water quality control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water quality control system capable of reducing the wasteful utilization of resources while controlling water quality corresponding to a contamination degree. <P>SOLUTION: The water quality monitoring system for monitoring the quality of the water in the bathtub of hot bath facilities to which chlorine is supplied includes: a contamination degree detection part for detecting the contamination degree of the water in the bathtub; a stage data memory part for storing the concentration reference value and concentration coefficient of chlorine as stage data so as to allow them to correspond to each other; a stage selection part for selecting the stage data with respect to the concentration coefficient corresponding to the detection result of the contamination degree detection part on reference to the stage data memory part; a reference value reading part for reading the reference value of the stage data selected by the stage selection part; and a chlorine supply part for supplying chlorine of which the concentration becomes the reference value read by the reference value reading part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a water quality monitoring system for monitoring the quality of bathtub water in a hot bath facility.

Conventionally, the quality of water in a bathtub such as a pool or bath has been managed. For example, when the user enters the bathtub and the water in the bathtub is used, the water gets dirty, but by supplying a chemical solution such as chlorine so that the inside of the bathtub has a constant chlorine concentration, The water quality is maintained. In this way, in order to maintain the water quality, for example, chlorine is injected every time a certain time elapses, and the chlorine concentration is managed to be a certain value or more.
Thus, the system for inject | pouring chemical | medical solutions, such as chlorine, and managing the water quality in a bathtub is provided (refer patent document 1).
Japanese Patent Laid-Open No. 10-290985

However, in the system shown in Patent Document 1 described above, since chemicals such as chlorine are manually injected, or chemicals are injected at regular intervals with a timer, there are not many users of the bathtub and dirt is generated. In spite of the low degree, there are cases where excessive chlorine is input or the number of users increases and the amount of chlorine input becomes insufficient despite the high degree of contamination.
In addition to the chemical solution, unclean water may be put into the bathtub as make-up water. However, it is desirable that this make-up water is not thrown in waste and has less loss. Further, when the temperature in the bathtub is lowered due to the supply of makeup water, it is necessary to heat the water in the bathtub in order to keep the temperature constant, so it is desirable to reduce the fuel for heating as much as possible.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a water quality management system capable of reducing the use of wasteful resources while managing the water quality according to the degree of contamination. It is in.

  In order to solve the problems described above, the present invention is a water quality detection device for detecting the quality of bathtub water, a measurement result storage unit that stores measurement data obtained by measuring residual chlorine concentration in the bathtub water, and the measurement And a soiling degree detection unit that detects the degree of soiling based on a history of measurement results of residual chlorine concentration stored in the result storage unit.

Further, the present invention is the above-described water quality detection device, wherein the contamination degree detection unit uses the measurement time of the measurement data stored in the measurement result storage unit as an integration range, and the integrated value of the entire interval, The degree of contamination is detected on the basis of the ratio of the integrated value obtained by integrating the measurement data.
Further, the present invention is characterized in that in the above-described water quality detection device, the contamination degree detection unit detects the contamination degree based on a change rate of measurement data stored in the measurement result storage unit.

  Further, the present invention is the above-described water quality detection apparatus, wherein the measurement result storage unit is turned on and off when a chlorine injection pump for injecting the chlorine into the bath water is used as measurement data. And the contamination degree detection unit for detecting the contamination degree is based on the on time and the off time when the chlorine injection pump is stored, which is stored in the measurement result storage unit. Is detected.

  Further, the present invention is the above-described water quality detection apparatus, wherein the measurement result storage unit stores the number of users who use the bath water as measurement data, and detects the degree of contamination. Is characterized in that the degree of contamination is detected based on the number of users stored in the measurement result storage unit.

  Further, the present invention is a water quality monitoring system for monitoring the water quality of bath water in a hot bath facility, and associates a soil level detection unit for detecting the level of bath water contamination with a reference value of chlorine concentration and a concentration coefficient. A stage information storage unit that stores information as stage information, a stage selection unit that refers to the stage information storage unit, selects stage information for a density coefficient according to the detection result of the contamination degree detection unit, and the stage selection unit. A reference value reading unit that reads a reference value of the selected stage information; and a control unit that outputs an instruction to supply chlorine so that the concentration of the reference value read by the reference value reading unit is provided. And

  The present invention is also a water quality monitoring system for monitoring the water quality of bathtub water, a stage information storage unit that associates a reference value of chlorine concentration with a concentration coefficient and stores it as stage information, and the chlorine is stored in the bathtub water. According to the ratio of the on time to the off time based on the detection result of the driving time detection unit that detects the on time and the off time that the chlorine injection pump to be injected is on, and the detection time of the driving time detection unit A stage information selection unit for selecting stage information corresponding to the density coefficient, a reference value reading unit for reading a reference value of the stage information selected by the stage selection unit, and a density of the reference value read by the reference value reading unit And a controller that outputs an instruction to supply chlorine.

  Further, the present invention is a water quality monitoring system for monitoring the water quality of bathtub water, a number calculating unit for detecting a user using the hot bath facility and calculating the number of persons, a reference value of chlorine concentration and a concentration coefficient, A stage information storage unit for storing stage information as stage information, a stage selection unit for referring to the stage information storage unit and selecting stage information for a density coefficient according to a calculation result of the number of persons calculation unit, and the stage selection A reference value reading unit that reads the reference value of the stage information selected by the unit, and a control unit that outputs an instruction to supply chlorine so that the concentration of the reference value read by the reference value reading unit is obtained. It is characterized by.

  Further, the present invention is characterized in that, in the above-described water quality management system, the number detection unit detects the number of users using the warm bath facility within a unit time.

As described above, according to the present invention, measurement data obtained by measuring the residual chlorine concentration of bath water is stored, and the degree of contamination is detected based on the history of the measurement results of the stored residual chlorine concentration. Since it did it, it can grasp | ascertain the dirt degree of bathtub water.
Further, according to the present invention, the degree of contamination is detected based on the on time and off time of the chlorine injection pump, so the degree of contamination can be detected from the chlorine injection status.
Further, according to the present invention, since the degree of contamination is detected based on the number of users, the degree of contamination can be detected using the number of users as an index.

  Further, according to the present invention, since the degree of contamination is detected and the chlorine concentration corresponding to the degree of contamination is set as the reference value, it is possible to prevent unnecessary chlorine from being injected.

  Further, according to the present invention, the stage is changed by grasping the degree of contamination based on the ratio between the time when the infusion pump is on and the time when it is off. Thus, even if the turbidity of the circulating water cannot be measured directly, the degree of contamination of the circulating water can be determined from the chlorine concentration and the operating state of the injection pump, and the chlorine concentration can be controlled. Thereby, since chlorine can be injected according to the degree of contamination, water quality can be managed without wasteful chlorine injection.

  Moreover, according to this invention, the number of users can be detected and it can be set as the chlorine concentration according to the number of users. This makes it possible to reach the bathtub while the user is working in a dressing room, etc. Since the chlorine concentration can be increased in advance, the lower limit of the chlorine concentration can be prevented even if the load in the bath increases and the chlorine concentration decreases.

Hereinafter, a water quality monitoring system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram showing a configuration of a water quality monitoring system 1 according to an embodiment of the present invention.
In this figure, a water quality monitoring system 1 includes a bathtub / filtration circulation circuit 100 through which water to be monitored for water quality circulates, and a measurement / control circuit 500 that monitors water circulating through the bathtub / filtration circulation circuit 100. .
Here, the hot bath facility is a facility that uses water by circulating it in a bathtub while maintaining the water quality, and includes, for example, a large bath, a public bath, a pool, and a hot water pool.

In the bathtub / filtration circuit 100, the bathtub 10 stores circulating water. The collection tank 12 collects the circulating water overflowing from the bathtub 10 and temporarily stores it. Circulate the circulating water stored in the water pump recovery tank in the bathtub / filtration circuit. The hair remover 20 removes relatively large impurities such as hair, dust, and the like from the circulating water stored in the collection tank 12 and fed by the water pump 15 or the circulating water bottomed and collected from the bathtub 10.
The filtration pump 22 sends the circulating water from which impurities have been removed by the hair remover 20 to the filtration device 35. The chemical solution tank 30 stores a chemical solution for maintaining the quality of circulating water such as chlorine. The water injection pump 32 injects the chemical liquid stored in the chemical liquid tank 30 into the circulating water between the filtration pump 22 and the filtration device 35. The filtration device 35 filters the circulating water sent out by the filtration pump 22 or the circulating water into which the chemical solution has been injected by the injection pump. This filtered circulating water is sent to the bathtub 10 by a pump or the like.

  The electric three-way valve 40 includes a pipe line between the water pump 15 and the hair remover (hereinafter referred to as pipe line A), a pipe line between the filter device 35 and the bathtub 10 (hereinafter referred to as pipe line B), Connected to the measurement / control circuit 500, the circulating water from either one of the pipeline A and the pipeline B is selected in accordance with an instruction from the mode switching control circuit 70 described later and supplied to the measurement / control circuit 500 To do.

Next, in the measurement / control circuit 500, the measurement / control circuit 500 includes a system control board A, a system control board B, a residual salt meter 50, a computer 90, a person number detection unit 52, and a makeup water sensor 55.
The residual salt meter 50 detects the residual chlorine in the circulating water sent through the electric three-way valve 40 and outputs the detected result. This residual salt system 50 corresponds to the above-described chlorine detector.
The number detection unit 52 detects the number of users who use the hot bath facility. The number of persons is detected as follows, for example.
1) Every time a user accepts a reception, the switch is depressed, and the number of depressions is counted by a counter.
2) Using a camera installed in the passage from the reception to the dressing room, the user heading for the bathtub 10 is imaged, the imaged result is image-analyzed, and the number of persons is determined from the analysis result.
3) A flap gate is provided between the reception and the bathtub 10, and the number of people passing through the flap gate is detected by a sensor and counted.
The makeup water amount sensor 55 detects the amount of makeup water supplied to the bathtub / filtration circulation circuit 100. An example of the makeup water is tap water.

  Next, in the system control panel A, the AI card 51 takes in analog data output from the residual salt meter 50, converts it into digital data, and outputs it to the sequencer 62. The DI card 60 takes in digital data output from the number-of-people detection unit 52 and the makeup water amount sensor 55 and outputs the digital data to the sequencer 62. The sequencer 62 refers to the data output from the AI card 51 and the DI card 60, and performs control for maintaining and managing the water quality to the bathtub / filtration circuit 100 (described later). The NW card 65 outputs the output data from the sequencer 62 to the system control board B.

  The mode switching control circuit 70 controls the valve of the electric three-way valve 40 based on an instruction from the sequencer 62. The infusion pump control circuit 72 controls driving (on) and stopping (off) of the infusion pump 32 based on an instruction from the sequencer 62. The replenishment / auxiliary injection control circuit 75 opens and closes a replenishment electric valve that replenishes replenishment water based on an instruction from the sequencer 62. The replenishment / auxiliary injection control circuit 75 controls the chlorine dioxide injection device. This makeup water is, for example, water that has not been used as circulating water and has almost no dirt, and can be supplied to the circulating water to improve the quality of the circulating water.

  The system control board B has a measurement system unit 80 and outputs various data output from the NW card 65 of the system control board A to the computer 90. The computer 90 is connected to the outside of the system control panel B, and stores various data output from the measurement system unit of the system control panel B as a log in a storage device or displays it on a display device. In addition, an input device such as a keyboard and a mouse is connected to the computer 90, and various data stored in the storage device can be edited in accordance with instructions input from the input device. .

Next, the sequencer 62 will be further described with reference to the drawings. FIG. 2 is a schematic block diagram for explaining the configuration of the sequencer 62. In this figure, the sequencer 62 includes a control module 600, a control module 700, a control module 800, and a stage determination unit 900.
In the control module 600, the stain level calculation unit 610 receives the residual salt signal output from the AI card 51, and calculates the stain level from the received residual salt signal. In this calculation, for example, the degree of contamination is calculated based on the past history of the residual salt signal and the history of measures for maintaining or improving the water quality. Specifically, as a measure for maintaining or improving the water quality, based on the amount of injection of chemical solution or supplementary water injected within a unit time, and the history of chlorine concentration indicated by the residual salt signal, The degree of contamination is calculated.
Here, if the chlorine concentration indicated by the residual salt signal does not reach the target value even though a certain amount or more of chlorine, which is a chemical solution, is injected within the unit time, it is determined that the degree of contamination is high, and the unit Chlorine as a chemical solution is not injected within the time, but when the chlorine concentration indicated by the residual salt signal has reached the target value, it is determined that the degree of contamination is low. This determination is calculated based on the injection amount and injection time of the chemical solution and the chlorine concentration.

The stage information storage unit 620 associates a stage ID for identifying a plurality of stages, a reference value of chlorine concentration (here, an upper limit value), and a contamination degree coefficient that is a concentration coefficient, and stores them as stage information. An example of information stored in the stage information storage unit 620 is shown in FIG.
Here, the reference value of the chlorine concentration is a value that becomes a target value of the chlorine concentration in the bathtub, and the chemical solution is injected or stopped by the injection pump 32 so as to be this value. The stage selection unit 630 refers to the stage information storage unit 620 and selects stage information for the degree of contamination calculated by the contamination level calculation unit. The reference value reading unit 640 reads the reference value of the stage information selected by the stage selection unit 630.

  In the control module 700, the stage information storage unit 710 stores a reference value (for example, maximum value) of the chlorine concentration and a concentration coefficient in association with each other as stage information. An example of data stored in the stage information storage unit 710 is shown in FIG. As shown in this figure, an ID for identifying a stage, a calculation coefficient, an ON time, an OFF time, a dirt standard, and an upper limit value (ppm) are stored in association with each other. The calculation coefficient range is set for each stage. This calculation coefficient is calculated by the ratio of the pump ON time to the OFF time (pump ON time ÷ pump OFF time). The ON time is a time during which the infusion pump 32 is continuously driven, and the OFF time is a time during which the infusion pump 32 is continuously stopped. The dirt standard is a status indicating the degree of dirt, and a different status such as “very clean” or “clean” is set for each stage.

  The driving time detection unit 720 detects an on time and an off time when the chlorine injection pump for injecting chlorine into the bath water is turned off, and determines the pump ON time and OFF time based on the detection result. A calculation coefficient which is a ratio (pump ON time / pump OFF time) is calculated. The stage information selection unit 730 selects stage information corresponding to the calculation coefficient calculated by the drive time detection unit 720. The reference value reading unit 740 reads the reference value of the stage information selected by the stage selection unit 730.

  In the control module 800, the number calculation unit 810 detects a user who uses the hot bath facility and calculates the number of people. Here, the past cumulative number of people is calculated, or the number of people used within a unit time is calculated. The stage information storage unit 830 stores the number of users and the reference value of the chlorine concentration as stage information in association with each other. An example of information stored in the stage information storage unit 820 is shown in FIG. As shown in this figure, the stage ID, the number of users (here, the total number of users), and the upper limit value are stored in association with each other. This cumulative number of persons is, for example, the cumulative number of persons used by the user from the specified time. The stage selection unit 830 refers to the stage information storage unit 820 and selects the stage information for the density coefficient according to the detection result of the number calculation unit. The reference value reading unit 840 reads the reference value of the stage information selected by the stage selection unit 830.

  The stage determination unit 900 sets the reference value of the stage information read by the reference value reading unit 640, the reference value reading unit 740, and the reference value reading unit 840 as the maximum value of the chlorine concentration. Here, each time a reference value is output from any one of the reference value reading unit 640, the reference value reading unit 740, and the reference value reading unit 840, the reference value may be set as the maximum value. Of the reference values output from any one of the reading unit 640, the reference value reading unit 740, and the reference value reading unit 840, the value indicating the maximum reference value may be set as the maximum value.

  Next, the relationship between the chemical injection and the chlorine concentration in the above system will be described with reference to FIG. Here, the chlorine concentration in the bath decreases every time the user uses it (symbol a), and when the lower limit value of the chlorine concentration reaches a predetermined value, the injection pump 32 is turned on and chlorine is injected. (Symbol b). Then, when chlorine is injected, the chlorine concentration increases (symbol c). Then, when the chlorine concentration reaches the upper limit value, the injection pump 32 is stopped and the chlorine injection is stopped (symbol d). Immediately after stopping the injection of chlorine, the concentration slightly increases (symbol e) and decreases (symbol f) until the chlorine is stabilized in the circulation circuit.

  Next, the operation of the apparatus in the above-described system will be described using the flowchart of FIG. First, when control of water quality management is started, the mode switching control circuit 70 controls the electric three-way valve 40, switches the three-way valve at regular intervals, and takes in the circulating water in the bathtub into the residual salt meter 50. Do. The residual salt meter 50 measures the concentration and outputs the measurement result to the AI card 51. As a result, the measurement results are sequentially recorded in the sequencer 62 (step S10). When the filtration operation is started (step S20), the sequencer 62 determines whether or not it is immediately after switching from the check mode (step S30). If it is immediately after switching, the process proceeds to step S80 described below. On the other hand, if not immediately after switching from the check mode, the sequencer 62 determines whether or not the chlorine concentration is equal to or higher than the upper limit value (step S40). Here, immediately after the start of operation, for example, the reference value of stage 3 is set as the upper limit value. If the reference value of stage 3 is the upper limit value and the chlorine concentration is less than the upper limit value, the process proceeds to step S10. If the chlorine concentration is equal to or higher than the upper limit value, the infusion pump 32 is turned off, The injection is stopped (step S50).

  Then, the current time is detected by the time measuring function provided in the sequencer 62 (step S60), and the time from when the infusion pump 32 starts operation until it stops at step S50 is counted (step S70). The time during which the infusion pump 32 was on is calculated (step S). Then, the sequencer 62 detects the density again, and determines whether or not it is less than a predetermined lower limit value (step S80). When the chlorine concentration is equal to or higher than the lower limit value, the process proceeds to step S10. When the chlorine concentration is lower than the lower limit value, the injection pump 32 is turned on to inject chlorine (step S90).

  Then, the sequencer 62 detects the current time and measures the time during which the infusion pump 32 is off (step S100). Then, the sequencer 62 determines whether or not it is immediately after switching from the check mode (step S110). If it is immediately after switching from the check mode, the sequencer 62 proceeds to step S10 and is not immediately after switching from the check mode. In this case, the time during which the infusion pump 32 is on is measured (step S120), and the contamination coefficient is calculated (step S130). The contamination coefficient is calculated by calculating the ratio of the time when the infusion pump 32 is on and the time when it is off (on time ÷ off time). When the contamination coefficient is calculated, the sequencer 62 refers to the table in FIG. 3 and refers to the ID of the stage that matches the calculated contamination coefficient, and determines whether or not the stage has been changed (step S140). For example, if the stage corresponding to the calculated contamination coefficient is 2, it is determined that the stage has been changed, the chlorine concentration in stage 2 is read, and the read chlorine concentration is set as the upper limit value. On the other hand, if the stage is not changed, that is, if the stage is 3, the sequencer 62 proceeds to step S10 on the assumption that there is no stage change.

  When there is a change in the stage, after changing the setting of the upper limit value, it is determined whether or not the chlorine concentration has reached an urgent level (preset alarm level) (step S150). If not, the process proceeds to step S10. If reached, an alarm log is stored in the computer 90 (step S160), an alarm is issued by the computer 90 (step S170), and the process proceeds to step S10.

FIG. 8 is a diagram for explaining the relationship between the chlorine concentration and the operation of the injection pump 32 when the contamination is relatively small. Here, although the infusion pump 32 is turned on (reference number b), since the contamination is relatively small (the load is small), the operation of turning off the infusion pump 32 immediately after injecting a little chlorine is repeated.
FIG. 9 is a drawing for explaining the relationship between the chlorine concentration and the operation of the injection pump 32 when the contamination is relatively high. Here, since there is a lot of dirt (the load is high), the time during which the infusion pump 32 is on continues for a certain period of time (symbol b), and once turns off, but it is repeatedly turned on soon. Here, since the high stage is maintained, the chlorine concentration is maintained at a high value.

  According to the embodiment described above, the degree of contamination is grasped based on the ratio of the time during which the infusion pump 32 is repeatedly turned on (driven) and turned off (stopped) to the time during which it is turned on during the period. I changed the stage. Thus, even if the turbidity of the circulating water cannot be measured directly, the degree of contamination of the circulating water can be determined from the chlorine concentration and the operating state of the injection pump 32, and the chlorine concentration can be controlled. Thereby, since chlorine can be injected according to the degree of contamination, water quality can be managed without wasteful chlorine injection. In addition, when it is going to measure turbidity, since a measurement result cannot be obtained in real time, real time water quality management cannot be performed, but according to the above-mentioned embodiment, it is real time according to the operation state of the infusion pump 32. Water quality management.

  Compared to the case where the operator manually measures the residual chlorine with a measuring instrument and sees the measurement result, injecting chlorine if it is below the lower limit, or stopping injection if the upper limit is exceeded. Therefore, it is possible to prevent useless chlorine from being injected.

  In the embodiment described above, the upper limit value of the chlorine concentration is changed by changing the stage based on the on / off time of the infusion pump 32 by the function of the control module 700. It is also possible to change the stage by counting the number of people. Here, this can be realized by the function of the control module 800. In other words, the number of people is detected by the number of people detection unit 52, the number of people is calculated based on the detection result, and the table stored in the stage information storage unit 820 is referred to which stage the counted number of people corresponds to. And the comparison result is compared with the currently set stage to determine whether or not there is a stage change. Thereby, if there is a change in the stage, the upper limit value of the chlorine concentration is sequentially changed, and the chlorine concentration can be controlled according to the number of users.

  According to this embodiment, when the number of users increases, it is possible to detect the number of people and change the stage before the user actually reaches the bathtub. This makes it possible to increase the chlorine concentration in advance before reaching the bathtub, such as during evening crowded hours or when a group visitor is working in a dressing room. Therefore, even if the load in the bath increases and the chlorine concentration decreases, it is possible to prevent the lower limit of the chlorine concentration from being reached.

  In the above-described embodiment, the control module 800 selects a stage based on the accumulated number of people. However, the calculation of the number of people is not limited to the accumulated number of people, and the number of users per unit time is calculated. The stage may be selected according to the calculated number of people per unit time. For example, the integrated value of the number of users within 60 minutes from the current time may be calculated at regular intervals, and the stage may be selected according to the calculated number of people. In this case, as shown in FIG. 11, the stage ID, the number of past unit times, and the upper limit value are stored in association with each other.

  In the embodiment described above, the control module 600, the control module 700, and the control module 800 are provided in the sequencer 62. However, the chlorine concentration may be controlled by any one of the control modules. The stage is selected by each control module using two or three of these control modules. And the stage determination part 900 compares the stage selected by each control module, and you may make it set the upper limit of a chlorine concentration according to what selected the highest stage among these.

  Further, in the above-described embodiment, the upper limit value of chlorine is set according to the stage information, but the chemical solution that can be set here is not limited to chlorine, and a drug for managing other water quality, It is also possible to apply auxiliary chemicals. Further, not only the chemical solution but also the amount of supply water to be supplied may be set to supply the supply water. In addition, the above-described hot bath facility may be a facility such as a public bath or a sauna, or may be a pool.

  According to the embodiment described above, parameters linked to the state of dirt in bath water are observed, information necessary for maintaining water quality is analyzed, and automatically executed according to the situation. This makes it possible to maintain and improve water quality monitoring and automatic control with this system in hot bath facilities where many people take a bath, prevent excessive injection of chemicals, and provide a comfortable environment for bathers (users). Further, since waste of water resources can be prevented and waste of water resources can be prevented, fuel costs for increasing the temperature of water to be replenished can be saved.

  In addition, you may make it provide the measurement and control circuit system 500 in embodiment mentioned above in the existing bathtub and filtration circulation circuit.

Next, detection of the water quality of the bathtub water in the above-described embodiment will be described. The sequencer 62 in FIG. 1 can also function as a water quality detection device that detects the quality of bathtub water.
The sequencer 62 is provided with a measurement result storage unit (not shown) for storing measurement data obtained by measuring the residual chlorine concentration of the bath water, and based on the history of measurement results of the residual chlorine concentration stored in the measurement result storage unit. The sequencer 62 detects the degree of contamination.
This degree of contamination can be detected as follows. That is, using the measurement time of the measurement data stored in the measurement result storage unit as the integration range, the ratio between the integral value of the entire section and the integral value obtained by integrating the measurement data in that section is calculated and calculated. The degree of dirt is detected based on the ratio.

Here, for example, as shown in FIG. 10, the sequencer 62 sets the measurement time between the measurement time and the measurement time B as a measurement time, and calculates the area Sb of the measurement data by integrating according to the measurement data in this section AB. Further, the sequencer 62 calculates the area Sa of the region where the residual chlorine concentration in the section AB is from 0 to the reference value K. Then, the ratio between the area Sa and the area Sb is calculated, and the value of this ratio is calculated as the degree of contamination. Here, for example, if the residual chlorine concentration continues to be high, it is assumed that chlorine has been injected to eliminate contamination, and if this injection amount is large, it can be understood that the degree of contamination is high. It is.
When calculating this ratio, the difference between the area Sa and the area Sb may be calculated as Sc, and the ratio between the Sc and the area Sb may be calculated.

  The sequencer 62 may detect the degree of dirt based on the change rate of the measurement data stored in the measurement result storage unit as the degree of dirt. Here, it is possible to detect a change in the degree of contamination according to an increase or decrease in the change rate.

Further, the sequencer 62 stores, as measurement data, an on time when a chlorine injection pump for injecting chlorine into the bath water is turned on and an off time when the chlorine injection pump is turned off, and the stored chlorine injection pump is turned on. The degree of contamination may be detected based on the ON time that is off and the OFF time that is off. This detection can be detected by calculating the ratio of the on time to the off time, as in the above embodiment.
Further, the number of users who use the bath water may be stored as measurement data, and the degree of contamination may be detected based on the number of users. Based on this number of people, the degree of contamination can be predicted by the number of users as in the above-described embodiment.

  In addition, the program for realizing the function of the sequencer 62 in FIG. 2 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer system and executed to perform water quality management. May be. Here, the “computer system” includes an OS and hardware such as peripheral devices.

Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory in a computer system serving as a server or a client in that case, and a program that holds a program for a certain period of time are also included. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes designs and the like that do not depart from the gist of the present invention.

It is a schematic structure figure showing the composition of water quality monitoring system 1 by one embodiment of this invention. 3 is a schematic block diagram for explaining a configuration of a sequencer 62. FIG. 6 is a diagram illustrating an example of information stored in a stage information storage unit 620. It is drawing which shows an example of the data memorize | stored in this stage information storage part 710. FIG. 6 is a diagram illustrating an example of information stored in a stage information storage unit 820. It is drawing for demonstrating the relationship between injection | pouring of a chemical | medical solution, and a chlorine concentration. It is a flowchart for demonstrating operation | movement of the apparatus in the system of FIG. It is a figure which shows an example of a measurement result. It is a figure which shows an example of a measurement result. It is a figure which shows an example of a measurement result. 6 is a diagram illustrating an example of information stored in a stage information storage unit 820.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Bath 30 Chemical solution tank 62 Sequencer 100 Bath / filtration circulation circuit 500 Measurement / control circuit 600, 700, 800 Control module 900 Stage determination part

Claims (9)

A water quality detection device for detecting the water quality of bathtub water,
A measurement result storage unit for storing measurement data obtained by measuring the residual chlorine concentration in the bath water;
On the basis of the history of measurement results of residual chlorine concentration stored in the measurement result storage unit, a contamination degree detection unit that detects the contamination degree,
A water quality detection device comprising: The contamination degree detection unit
Based on the ratio between the integral value of the whole interval and the integral value obtained by integrating the measurement data in the interval, with the measurement time of the measurement data stored in the measurement result storage unit as the integral range The water quality detection device according to claim 1, wherein The contamination degree detection unit
The water quality detection device according to claim 1, wherein the degree of contamination is detected based on a change rate of measurement data stored in the measurement result storage unit. The measurement result storage unit stores, as measurement data, an on time when a chlorine injection pump for injecting the chlorine into the bath water is on and an off time when the chlorine injection pump is off,
The contamination level detection unit for detecting the contamination level detects the contamination level based on an on time and an off time when the chlorine injection pump is on, which is stored in the measurement result storage unit. The water quality detection device according to claim 1. The measurement result storage unit stores the number of users who use the bathtub water as measurement data,
The water quality detection device according to claim 1, wherein the contamination level detection unit that detects the contamination level detects the contamination level based on the number of users stored in the measurement result storage unit. A water quality monitoring system for monitoring the quality of bathtub water in a hot bath facility,
A dirt degree detection unit for detecting the degree of dirt of the bathtub water;
A stage information storage unit that stores a reference value of chlorine concentration and a concentration coefficient in association with each other as stage information;
A stage selection unit that refers to the stage information storage unit and selects stage information for a density coefficient according to a detection result of the contamination degree detection unit;
A reference value reading unit for reading a reference value of the stage information selected by the stage selection unit;
A control unit that outputs an instruction to supply chlorine so that the concentration of the reference value read by the reference value reading unit is;
A water quality monitoring system characterized by comprising: A water quality monitoring system for monitoring the water quality of bathtub water,
A stage information storage unit that stores a reference value of chlorine concentration and a concentration coefficient in association with each other as stage information;
A driving time detection unit for detecting an on time and an off time when a chlorine injection pump for injecting the chlorine into the bath water is on; and
A stage information selection unit that selects stage information corresponding to a density coefficient according to a ratio between an on time and an off time based on a detection result of the drive time detection unit;
A reference value reading unit for reading a reference value of the stage information selected by the stage selection unit;
A control unit that outputs an instruction to supply chlorine so that the concentration of the reference value read by the reference value reading unit is;
A water quality monitoring system characterized by comprising: A water quality monitoring system for monitoring the water quality of bathtub water,
A number calculation unit for detecting the number of users using the hot bath facility and calculating the number of people;
A stage information storage unit that stores a reference value of chlorine concentration and a concentration coefficient in association with each other as stage information;
A stage selection unit that refers to the stage information storage unit and selects stage information for a density coefficient according to a calculation result of the number calculation unit;
A reference value reading unit for reading a reference value of the stage information selected by the stage selection unit;
A control unit that outputs an instruction to supply chlorine so that the concentration of the reference value read by the reference value reading unit is;
A water quality monitoring system characterized by comprising: The water quality management system according to claim 8, wherein the number detection unit detects the number of users using the hot bath facility within a unit time.

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