JP2000288530A - Water quality control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water quality control system which detects the fouling of water purifiers installed in waterworks, detects the purity of water purified by the water purifier, and judges the purification capacity of each water purifier comprehensively and appropriately based on the detected value. SOLUTION: In a water quality control system 1 having a water quality detection device 3 fitted to a water purifier 2 and a computer 4 for monitoring water quality connected with the detection device 3 through a telephone circuit 5, the detection device is equipped with a fouling sensor 21 and a purity sensor 22 and is provided with an abnormality judgement part 23 for judging the abnormality of the water purifier 2 and a communication part 24 for sending the results of judgement of the judgement part 23. When the abnormality of water quality is judged by the judgement part 23, the results of judgement are sent to the computer 4 through the telephone circuit 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water quality management system for managing the water quality of a water purifier at a centralized water quality management center using a communication line, and belongs to the field of water quality management technology.

[0002]

2. Description of the Related Art In recent years, a water purifier is often connected to a water pipe in order to purify tap water supplied to each household or company to obtain better-quality cooked drinking water and the like. Is coming. This type of water purifier has various filters, and these filters are designed to remove dirt such as germs and eluate mixed in the tap water and to remove the bad smell of the tap water. Good quality cooked drinking water and the like can be supplied to the user.

[0003]

In this type of water purifier, however, the performance of the filter deteriorates after a certain period of use, so that it is necessary to perform maintenance such as replacement of the filter. Since the user of the water purifier often overlooks even if the performance of the filter has deteriorated, the time for replacement of the filter has passed, and the quality of the water that has passed through the purification section of the water purifier has been extremely deteriorated. Notice that the performance of the filter has deteriorated. Therefore, it is late to notify the water quality manager or the like of the information, and it takes time to arrange supplies such as filters and consumables.

Further, if such maintenance is delayed, the purity of the water passing through the purifying section of the water purifier becomes low, so that it is impossible to supply high-purity water with high safety.

Accordingly, the present invention detects deterioration of the performance of a plurality of water purifiers provided in water supply facilities at various places and changes in the quality of water passing through the purification section of each water purifier, and based on the detected values, detects each of them. It is an object of the present invention to provide a water quality management system capable of appropriately and collectively determining the purification capacity of a water purifier by a centralized water quality management means.

[0006]

Means for Solving the Problems In order to solve the above problems, a water quality management system according to the present invention is characterized in that it is configured as follows.

[0007] First, the invention according to claim 1 of the present application (hereinafter referred to as the first invention) connects a plurality of water purifiers provided in water supply facilities in various places to a centralized water quality management means via a communication line. In the water quality management system,
At least one of a dirt sensor for detecting the dirt state of the water purifier and a purity sensor for detecting the purity of water that has passed through the purification unit of the water purifier is provided, and the water purifier is provided on the water purifier side based on the detection value of the sensor. Abnormality determination means for determining an abnormal state of the water, and communication means for transmitting the determination result of the abnormality determination means to the centralized water quality management means via a communication line.

Next, the invention according to claim 2 (hereinafter referred to as second invention)
According to the invention, in a water quality management system in which a plurality of water purifiers provided in water supply facilities at various locations and a centralized water quality management means are connected via a communication line, the water purifier detects a dirty state of the water purifier. A dirt sensor and at least one of a purity sensor that detects the purity of water that has passed through the purification unit of the water purifier are provided, and a communication unit that transmits a detection value of the sensor via a communication line is provided on the water purifier side, The water quality central control means is provided with an abnormality determining means for determining an abnormal state of the water purifier based on the detection value transmitted from the water purifier side.

Further, the invention according to claim 3 (hereinafter referred to as a third invention) enables the abnormality determination means in the first or second invention to change a determination criterion for determining an abnormal state of the water purifier. And a criterion changing means for changing the criterion is provided.

With the above-described configuration, the following effects can be obtained according to the present invention.

First, according to the first aspect of the present invention, since the water purifier is provided with abnormality determining means for determining an abnormal state of the water purifier, it is determined that the purification performance of the water purifier has deteriorated. In this case, the result of the abnormality determination is automatically transmitted from the water purifier determined to be abnormal to the centralized water quality management means. Therefore, the administrator of the water quality management system can quickly perform maintenance such as replacement of the filter of the water purifier based on the determination result.

[0012] In the case where the abnormal condition of the water purifier is periodically judged by the abnormality judging means and the judgment result is transmitted to the centralized water quality managing means, similarly, the manager of the water quality managing system has a plurality of managers. The purification capacity of the water purifier can be accurately grasped, and maintenance can be performed promptly.

Further, when both the dirt sensor and the purity sensor are installed in the above-mentioned water purifier, the deterioration of the performance and the purifying ability of the plurality of water purifiers can be comprehensively determined by the water quality central control means, so that the water quality can be more accurately determined. The purifying ability of each water purifier can be grasped.

Next, according to the second invention, the detection values detected by the dirt sensor or the purity sensor are transmitted to the centralized water quality control means continuously or intermittently, and are transmitted to the centralized water quality control means based on the detected values. An abnormal state of the water purifier is determined by the provided abnormality determining means. Therefore, similarly to the first aspect, the administrator of the water quality management system can accurately grasp the purifying ability of the plurality of water purifiers, and can perform maintenance quickly.

According to the third aspect of the present invention, the abnormality determining means for determining an abnormal state of the water purifier is provided with the criterion changing means for changing the criterion. Can be changed. Therefore, the user can always obtain the water of the required purity.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of a water quality management system according to an embodiment of the present invention will be described below.

As shown in FIG. 1, the water quality management system 1 includes a water quality detection device 3... 3 installed in each of the water purifiers 2. Are connected by telephone lines 5..., Respectively, and the purification performance and abnormal state of each water purifier 2 are collectively monitored by the centralized water quality management center. At both ends of each telephone line 5, modems 6, 6 are installed.

Next, the configuration of the water purifier 2 in the water quality management system 1 will be described.

As shown in FIG. 2, the water purifier 2 has a non-twist membrane filter 7, a reverse osmosis membrane 8, and an activated carbon filter 9, and a water supply pipe for supplying tap water to the primary side of the non-twist membrane filter 7. 10 and the above-mentioned non-twisted membrane filter 7 on the secondary side.
The first extraction pipes 11 that take out the water that has passed through and guide the water to the reverse osmosis membrane 8 are connected. In addition, the water supply pipe 10 is connected to the water pipe 12 via a first opening / closing cock 13. By opening and closing the first opening / closing cock 13, the tap water is supplied to the non-twist membrane filter 7. ing.

The first extraction pipe 11 is connected to the reverse osmosis membrane 8.
The water which has passed through the reverse osmosis membrane 8 is connected to the primary side of the
A second extraction pipe 14 leading to the reverse osmosis membrane 8 is connected, and wastewater containing impurities such as ions removed by the reverse osmosis membrane 8 is discharged from a drain pipe 15 connected to the reverse osmosis membrane 8. I have.

Further, a second outlet pipe 14 is connected to the primary side of the activated carbon filter 9, and a second outlet pipe of the activated carbon filter 9 leads to a storage tank 16 for storing water passing through the activated carbon filter 9. 17 are connected.

Further, a purified water outlet pipe 18 is connected to the secondary side of the storage tank 16, and when the second opening / closing cock 19 is opened / closed, the water is stored in the storage tank 16 from the water supply faucet 20 as necessary. Water is supplied.

Next, the operation of the water purifier 2 will be described.

First, the first opening / closing cock 13 is opened, and dirt and the like of tap water supplied from the water pipe 12 via the water supply pipe 10 are removed by attaching to the non-twist membrane filter 7. Is passed through the first extraction pipe 11
The impurities such as ions are removed by the reverse osmosis membrane 8 through the reverse osmosis membrane 8. At that time, the water containing the removed impurities is discharged from the drain pipe 15. Then, the water that has passed through the reverse osmosis membrane 8 is
The activated carbon filter 9 leads the activated carbon filter 9 to remove odors and the like. And the activated carbon filter 9
Water passing through the storage tank 16 through the third extraction pipe 17
It is supplied to.

Next, the water quality detecting device 3 will be described.

The non-twisted membrane filter 7 is provided with a dirt sensor 21. At both ends of the dirt sensor 21, pressure guiding tubes 21a and 21b are provided.
a and 21b are connected to the water supply pipe 10 and the first extraction pipe 11, respectively. The dirt sensor 21 detects the pressure difference between the tap water of the water supply pipe 10 and the tap water of the first discharge pipe 11 and detects dirt based on the detected value.

The third outlet pipe 18 connected to the storage tank 16 is provided with a purity sensor 22. The purity sensor 22 determines the purity of water passing through the activated carbon filter 9 based on the electrical conductivity of the water. It is designed to detect.

Further, the water quality detecting device 3 includes an abnormality judging unit 23 for judging the purification performance or abnormal state of the water purifier 2 based on the detection values from the dirt sensor 21 and the purity sensor 22;
A communication processing unit 24 that converts the determination result into communication data and outputs the data is provided.

An operation unit 25 is provided in the abnormality determination unit 23. By operating the operation unit 25, the setting of a determination criterion for abnormality determination is changed.

Next, the operation of the water quality management system 1 will be described.

First, when tap water is supplied from the water supply pipe 10 to the water purifier 2, stains of tap water and the like adhere to the non-twist membrane filter 7, and when the stain attached to the non-twist membrane filter 7 increases, The non-twist membrane filter 7 is clogged and the water supply pipe 1
A pressure difference between tap water and the first discharge pipe 11 occurs.
When the differential pressure is compared and detected by the dirt sensor 21 and the detected value is transmitted to the abnormality determination unit 23, and when the detected value exceeds a reference value previously set by the operation unit 25 of the abnormality determination unit 23, The determination unit 23 determines that the purification performance of the water purifier 2 has deteriorated. Then, the information is transmitted to the communication processing unit 24, converted into communication data by the communication processing unit 24, output, and transmitted to the modem 6 of the water quality detection device 3. The communication data transmitted to the modem 6 is analog-processed by the modem 6, and the analog-processed information is transmitted to the centralized water quality monitoring device 4 via the telephone line 5.

Also in the purity sensor 22, the purity sensor 22 detects the purity of water and the detected value is used as an abnormality determination unit 23, as in the case where the dirt sensor 21 detects dirt.
To the abnormality determination unit 23
If the reference value set by the operation unit 25 is exceeded, the determination unit 23 determines that the purification performance of the water purifier 2 has deteriorated. Then, the information is transmitted to the communication processing unit 24, converted into communication data by the communication processing unit 24, output, and transmitted to the modem 6 of the water quality detection device 3. The communication data transmitted to the modem 6 is analog-processed by the modem 6, and the analog-processed information is transmitted to the centralized water quality monitoring device 4 via the telephone line 5.

When a user of the water purifier 2 presses a manual operation switch (not shown) provided on the operation unit 25 in response to a request from the centralized water quality control center provided with the centralized water quality monitoring device 4, The determination result determined by the determination unit 23 may be transmitted to the centralized water quality monitoring device 4.

Further, the water quality detecting device 3 is provided with an abnormality determining unit 23.
A control unit (not shown) may be provided for determining an abnormal state of the water purifier 2 and periodically transmitting the determination result to the centralized water quality monitoring device 4.

Next, a water quality management system 1 'according to another embodiment of the present invention will be described. In the following description, the same reference numerals are used for elements common to the above-described embodiment, and detailed description of overlapping parts is omitted.

As shown in FIG. 3, the abnormality judging section 23 'is built in the centralized water quality monitoring device 4, and the setting of the judging standard for judging the abnormal state of the water purifier 2 can be changed by the operation section 25'. .

When a call is made from the water quality management center having the centralized water quality monitoring device 4 to the water quality detection device 3, the detection values of the dirt sensor 21 and the purity sensor 22 at the time of the call are communicated by the water quality detection device 3. The processing unit 24 converts the data into communication data. Then, the communication data is subjected to analog processing by the modem 6 on the water quality detecting device 3 side, and transmitted to the centralized water quality monitoring device 4 via the telephone line 5. Then, the abnormality determination unit 2 built in the monitoring device 4
At 3 ′, it is determined whether the detection value detected by the dirt sensor 21 or the purity sensor 22 is abnormal, and the detected value or the determination result is displayed on a display unit (not shown) of the centralized water quality monitoring device 4. It is displayed.

When a user of the water purifier 2 presses a manual operation switch (not shown) provided on the operation unit 25 in response to a request from the centralized water quality management center having the centralized water quality monitoring device 4, the contamination can be prevented. The detection value detected by the sensor 21 or the purity sensor 22 may be transmitted to the centralized water quality monitoring device 4.

When the detection values from the dirt sensor 21 and the purity sensor 22 are transmitted to the water quality detecting device 3 to the centralized water quality monitoring device 4, a control unit (not shown) for controlling the water quality detecting device 3 to transmit the values periodically or continuously. ) May be provided. In that case,
The control unit continuously or periodically transmits the detected values to the centralized water quality monitoring device 4, and the purifying ability of the water purifier 2 is determined based on these detected values.

Although a telephone line is used as an example of a communication line in the above embodiment, the same effect as described above can be obtained when a digital communication line other than the telephone line or a communication line for dedicated data is used.

Further, in addition to the above embodiments, only one of the dirt sensor and the purity sensor may be provided and used.

Further, in each of the above embodiments, the purity sensor is provided in the purified water outlet pipe connected between the storage tank and the second opening / closing cock, but is connected between the activated carbon filter and the storage tank. A purity sensor may be provided immediately after the third extraction pipe, that is, the purification section.

[0043]

As described above, according to the first aspect of the present invention, since the abnormality determining means for determining an abnormal state of the water purifier is provided on the water purifier side, the purification performance of the water purifier is improved by the abnormality determining means. When it is determined that the water has deteriorated, the abnormality determination result is automatically transmitted from the water purifier determined to be abnormal to the centralized water quality management means. Therefore, the administrator of the water quality management system can quickly perform maintenance such as replacement of the filter of the water purifier based on the determination result. Also,
Similarly, when the abnormal state of the water purifier is periodically determined by the abnormality determining means and the result of the determination is transmitted to the centralized water quality management means, the purifying ability of the plurality of water purifiers can be accurately grasped in the same manner. The user can perform maintenance quickly, and the user can always obtain high purity and safe water. Furthermore, when both a dirt sensor and a purity sensor are installed in the above-mentioned water purifier, the deterioration of water purification and the purifying ability of a plurality of water purifiers can be comprehensively determined by the centralized water quality control means, and each water purifier can be more accurately determined. It is possible to grasp the purifying ability of the oil.

Next, according to the second invention, the detection values detected by the dirt sensor and the purity sensor are transmitted to the centralized water quality control means continuously or intermittently, and are transmitted to the centralized water quality control means based on the detected values. The provided abnormality determination means determines an abnormal state of the water purifier. Therefore, similarly to the first invention, the purifying ability of the plurality of water purifiers can be accurately grasped, and the administrator can quickly perform maintenance, and the user can always use high-purity safe water. Can be obtained.

According to the third aspect of the present invention, the abnormality criterion for judging an abnormal state of the water purifier is provided with the criterion changing means for changing the criterion. . Therefore, the user can always obtain the water of the required purity.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a water quality management system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a detailed system configuration of a water purifier according to the embodiment and its periphery.

FIG. 3 is an explanatory diagram showing a detailed system configuration of a water purifier according to another embodiment of the present invention and its periphery.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water quality management system 2 Water purifier 4 Water quality centralized monitoring device 5 Telephone line 21 Dirt sensor 22 Purity sensor 23,23 'Abnormality judgment part 24 Communication processing part 25,25' Operation part

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[Procedure amendment]

[Submission date] March 27, 2000 (2003.
7)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Water quality management system

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water quality management system for managing the water quality of a water purifier at a centralized water quality management center using a communication line, and belongs to the field of water quality management technology.

[0002]

2. Description of the Related Art In recent years, a water purifier is often connected to a water pipe in order to purify tap water supplied to each household or company to obtain better-quality cooked drinking water and the like. Is coming. This type of water purifier has various filters, and these filters are designed to remove dirt such as germs and eluate mixed in the tap water and to remove the bad smell of the tap water. Good quality cooked drinking water and the like can be supplied to the user.

[0003]

In this type of water purifier, however, the performance of the filter deteriorates after a certain period of use, so that it is necessary to perform maintenance such as replacement of the filter. Since the user of the water purifier often overlooks even if the performance of the filter has deteriorated, the time for replacement of the filter has passed, and the quality of the water that has passed through the purification section of the water purifier has been extremely deteriorated. Notice that the performance of the filter has deteriorated. Therefore, it is late to notify the water quality manager or the like of the information, and it takes time to arrange supplies such as filters and consumables.

Further, if such maintenance is delayed, the purity of the water passing through the purifying section of the water purifier becomes low, so that it is impossible to supply high-purity water with high safety.

Accordingly, the present invention detects deterioration of the performance of a plurality of water purifiers provided in water supply facilities at various places and changes in the quality of water passing through the purification section of each water purifier, and based on the detected values, detects each of them. It is an object of the present invention to provide a water quality management system capable of appropriately and collectively determining the purification capacity of a water purifier by a centralized water quality management means.

[Means for Solving the Problems]

In order to solve the above problems, a water quality management system according to the present invention is characterized in that it is configured as follows.

That is, the present invention relates to a water quality management system in which a plurality of water purifiers provided in water supply facilities at various locations and a centralized water quality control means are connected via a communication line. And at least one of a purity sensor for detecting the purity of water that has passed through the purification unit of the water purifier, and determining an abnormal state of the water purifier based on the detection value of the sensor on the water purifier side. Abnormality determination means for performing the determination and the determination result of the abnormality determination means on a regular basis.
Or at least one time when it is determined to be abnormal
In a communication means for transmitting to said water centralized management means via the communication line, the abnormality determination means when operated manually
The determination result is transmitted to the water quality central management means via the communication means.
And an operation switch for transmitting the data to the computer .

[0008] By configuring as described above, the present invention
According to the description , the following operation is obtained.

First, since the water purifier is provided with abnormality judgment means for judging an abnormal state of the water purifier, when it is judged by the abnormality judgment means that the purification performance of the water purifier has deteriorated, it is judged to be abnormal. The abnormality determination result is automatically transmitted from the water purifier to the centralized water quality control means. Therefore, the administrator of the water quality management system can quickly perform maintenance such as replacement of the filter of the water purifier based on the determination result.

[0010] In the case where the abnormal condition of the water purifier is periodically judged by the abnormality judging means and the judgment result is transmitted to the centralized water quality managing means, similarly, the manager of the water quality managing system has a plurality of managers. The purification capacity of the water purifier can be accurately grasped, and maintenance can be performed promptly.

Furthermore, when installing both dirt sensor and purity sensor to the water purifier, it becomes degraded or purifying ability of the performance of a plurality of water purifier can be comprehensively judged by quality centralized unit, more precisely The purifying ability of each water purifier can be grasped.

When manually operated, the abnormal
Transmitting the determination result of the control means to the water quality central control means
Operation switch is provided.
Depending on the water purifier, the judgment result is sent to the centralized water quality management means
Can be transmitted.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of a water quality management system according to an embodiment of the present invention will be described below.

As shown in FIG . 1, the water quality management system 1 includes a water quality detection device 3... 3 installed in each of the water purifiers 2. 2 and a water quality centralized monitoring device 4 installed in a centralized water quality management center. Are connected by telephone lines 5..., Respectively, and the purification performance and abnormal state of each water purifier 2 are collectively monitored by the centralized water quality management center. At both ends of each telephone line 5, modems 6, 6 are installed.

[0015] Next, the configuration of the water purifier 2 in the water quality control system 1.

As shown in FIG . 2, the water purifier 2 has a non-twist membrane filter 7, a reverse osmosis membrane 8, and an activated carbon filter 9, and a water supply pipe for supplying tap water to a primary side of the non-twist membrane filter 7. 10 and the above-mentioned non-twisted membrane filter 7 on the secondary side.
The first extraction pipes 11 that take out the water that has passed through and guide the water to the reverse osmosis membrane 8 are connected. In addition, the water supply pipe 10 is connected to the water pipe 12 via a first opening / closing cock 13. By opening and closing the first opening / closing cock 13, the tap water is supplied to the non-twist membrane filter 7. ing.

[0017] Then, the first take-out pipe 11 is reverse osmosis membrane 8
The water which has passed through the reverse osmosis membrane 8 is connected to the primary side of the
A second extraction pipe 14 leading to the reverse osmosis membrane 8 is connected, and wastewater containing impurities such as ions removed by the reverse osmosis membrane 8 is discharged from a drain pipe 15 connected to the reverse osmosis membrane 8. I have.

Furthermore, the third take-out tube second take-out pipe 14 is connected to the primary side of the activated carbon filter 9, also the secondary side of the activated carbon filter 9 leads to the storage tank 16 for storing water that has passed through an activated carbon filter 9 17 are connected.

A purified water outlet pipe 18 is connected to the secondary side of the storage tank 16, and the second opening / closing cock 19 is opened and closed to store the water in the storage tank 16 from the water supply faucet 20 as needed. Water is supplied.

[0020] Next, the operation of the water purifier 2.

Firstly, opening the first closing cock 13, dirt tap water supplied through the water supply pipe 10 from the water pipe 12 is removed by adhering to the non-twist film filter 7, non-twist film filter 7 Is passed through the first extraction pipe 11
The impurities such as ions are removed by the reverse osmosis membrane 8 through the reverse osmosis membrane 8. At that time, the water containing the removed impurities is discharged from the drain pipe 15. Then, the water that has passed through the reverse osmosis membrane 8 is
The activated carbon filter 9 leads the activated carbon filter 9 to remove odors and the like. And the activated carbon filter 9
Water passing through the storage tank 16 through the third extraction pipe 17
It is supplied to.

[0022] Next, a description will be given of water quality detection device 3.

The above non-twist film filter 7 is dirty sensor 21 is provided, both ends impulse line 21a to the dirty sensor 21, 21b is provided, these impulse line 21
a and 21b are connected to the water supply pipe 10 and the first extraction pipe 11, respectively. The dirt sensor 21 detects the pressure difference between the tap water of the water supply pipe 10 and the tap water of the first discharge pipe 11 and detects dirt based on the detected value.

Further, the purity sensor 22 is provided in the third recovery tube 18 connected to the storage tank 16, said purity level sensor 22 by the electrical conductivity of the water, the purity of the water passing through the activated carbon filter 9 It is designed to detect.

Furthermore, the abnormality determination unit 23 to determine the cleaning performance and the abnormal state of the water purifier 2 based on the detection value from the said water quality detector 3 dirt sensor 21 and purity sensor 22,
A communication processing unit 24 that converts the determination result into communication data and outputs the data is provided.

An operation unit 25 is provided in the abnormality determination unit 23.
When the user of the water purifier 2 presses a manual operation switch (not shown) provided on the operation unit 25, the determination result determined by the abnormality determination unit 23 is transmitted to the water quality centralized monitoring device 4. Can be transmitted.

By operating the operation section 25, the setting of the criterion for determining the abnormality is changed.

[0028] Next, a description will be given of the operation of the water quality management system 1.

[0029] First, when the tap water is supplied to the water purifier 2 from the water supply pipe 10, dirt is adhered tap water to non-twist film filter 7, the dirt adhered to the radio twisting membrane filter 7 is increased, The non-twist membrane filter 7 is clogged and the water supply pipe 1
A pressure difference between tap water and the first discharge pipe 11 occurs.
When the differential pressure is compared and detected by the dirt sensor 21 and the detected value is transmitted to the abnormality determination unit 23, and when the detected value exceeds a reference value previously set by the operation unit 25 of the abnormality determination unit 23, The determination unit 23 determines that the purification performance of the water purifier 2 has deteriorated. Then, the information is transmitted to the communication processing unit 24, converted into communication data by the communication processing unit 24, output, and transmitted to the modem 6 of the water quality detection device 3. The communication data transmitted to the modem 6 is analog-processed by the modem 6, and the analog-processed information is transmitted to the centralized water quality monitoring device 4 via the telephone line 5.

In the purity sensor 22, as in the case where the dirt sensor 21 detects dirt, the purity sensor 22 detects the purity of water.
To the abnormality determination unit 23
If the reference value set by the operation unit 25 is exceeded, the determination unit 23 determines that the purification performance of the water purifier 2 has deteriorated. Then, the information is transmitted to the communication processing unit 24, converted into communication data by the communication processing unit 24, output, and transmitted to the modem 6 of the water quality detection device 3. The communication data transmitted to the modem 6 is analog-processed by the modem 6, and the analog-processed information is transmitted to the centralized water quality monitoring device 4 via the telephone line 5.

The water quality detecting device 3 is provided with an abnormality determining unit 23.
A control unit (not shown) may be provided for determining an abnormal state of the water purifier 2 and periodically transmitting the determination result to the centralized water quality monitoring device 4.

Although the telephone line is used as an example of the communication line in the above embodiment, the same effect as described above can be obtained when a digital communication line other than the telephone line or a communication line for dedicated data is used.

Further, in addition to the above embodiment, it may be used provided only either the contamination sensor or purity sensor.

Furthermore, in the above embodiment, although the purity sensor is equipped in the purified water extraction pipe connected between the storage tank and the second opening and closing cock, connected between the activated carbon filter and the storage tank A purity sensor may be provided immediately after the third extraction pipe, that is, the purification section.

[0035]

As described above, according to the present invention, since the abnormality determining means for determining the abnormal state of the water purifier is provided on the water purifier side, the purification performance of the water purifier is deteriorated by the abnormality determining means. When it is determined that the abnormality has occurred, the abnormality determination result is automatically transmitted from the water purifier determined to be abnormal to the centralized water quality management means. Therefore, the administrator of the water quality management system can quickly perform maintenance such as replacement of the filter of the water purifier based on the determination result. Also,
Similarly, when the abnormal state of the water purifier is periodically determined by the abnormality determining means and the result of the determination is transmitted to the centralized water quality management means, the purifying ability of the plurality of water purifiers can be accurately grasped in the same manner. The user can perform maintenance quickly, and the user can always obtain high purity and safe water. Furthermore, when both a dirt sensor and a purity sensor are installed in the above-mentioned water purifier, the deterioration of water purification and the purifying ability of a plurality of water purifiers can be comprehensively determined by the centralized water quality control means, and each water purifier can be more accurately determined. It is possible to grasp the purifying ability of the oil.

Then, when operated manually, the abnormal
Transmitting the determination result of the control means to the water quality central control means
Operation switch is provided.
Depending on the water purifier, the judgment result is sent to the centralized water quality management means
Can be transmitted.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a water quality management system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a detailed system configuration of a water purifier according to the embodiment and its periphery.

[Description of Signs] 1 Water quality management system 2 Water purifier 4 Centralized water quality monitor 5 Telephone line 21 Soil sensor 22 Purity sensor 23 Abnormality judgment unit 24 Communication processing unit 25 Operation unit

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Figure 3

[Correction method] Deleted

Claims (3)

[Claims] 1. A water quality management system in which a plurality of water purifiers provided in water supply facilities in various places and a centralized water quality management means are connected via a communication line. And a purity sensor for detecting the purity of the water that has passed through the purification section of the water purifier, and the water purifier side is provided with a water purifier based on the detection value of the sensor. A water quality management system comprising: an abnormality determination unit that determines an abnormal state; and a communication unit that transmits a determination result of the abnormality determination unit to the centralized water quality management unit via a communication line. 2. A water quality management system in which a plurality of water purifiers provided in water supply facilities at various places and a centralized water quality control means are connected via a communication line. And at least one of a purity sensor for detecting the purity of water passing through the purification unit of the water purifier, and a communication for transmitting a detection value of the sensor via a communication line to the water purifier side. Means is provided, and the water quality central control means is provided with abnormality determining means for determining an abnormal state of the water purifier based on the detection value transmitted from the water purifier side. Water quality management system. 3. The abnormality determining means is capable of changing a determination criterion for determining an abnormal state of the water purifier,
The water quality management system according to claim 1 or 2, further comprising a criterion changing means for changing the criterion.