JP2017091032A - Water supply facility maintenance support device and monitoring control system mounted with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water supply facility maintenance support device capable of ensuring appropriate maintenance of a water supply facility and stable supply of water with appropriate quality through a prediction on the basis of past performance in the form of an activity factor and a simulation.SOLUTION: A water supply facility management support device 2 comprises: an index calculation section 22 which calculates an activity factor of an operator who works in a water supply facility on the basis of a moving distance of the operator obtained through an image acquisition section and an audio signal including a conversation of the operator obtained through an audio acquisition section; an activity log DB 24 which stores past operation conditions, past operation contents and past operation results of respective devices in the water supply facility in association with each other; and a simulation section 26 which determines whether or not respective devices are in an unsteady state on the basis of current operation states of respective devices obtained through a monitoring control device 3, information stored in the activity log DB 24 and the activity factor of the operator and predicts a state of the water supply facility after a lapse of predetermined time on the basis of the past operation conditions corresponding to the current operation states. A simulation result shows an operation condition and/or an operation content to meet predetermined water quality.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a device that supports operation management and maintenance management of water supply facilities and equipment, and in particular, collects information indicating the behavior of a user (worker) and associates the information with information on operation conditions or operation results. The present invention relates to a maintenance support device that provides support information to a user (worker) and a monitoring control system for a water supply facility having the same.

In the water supply business, river water and groundwater are used as raw water, and after water purification and disinfection, water is finally supplied to customers via pipes. The work of workers in the water supply business includes operation of water treatment facilities, maintenance of facilities and equipment, and adjustment of water supply and distribution.
Many water treatment facilities use surface water such as river water as the source of water, and the quality of raw water varies depending on the season and weather. Therefore, it is necessary for the water purification treatment worker to adjust the operation of the equipment according to the quality of the raw water. In normal times, the equipment is automatically operated by a monitoring control device with a predetermined control logic. However, if an unsteady event such as heavy rain or drought occurs, operation management may be performed based on the know-how of the worker. Such a response method has been considered effective as a social infrastructure in order to avoid the stoppage of tap water supply as much as possible.

On the other hand, the number of workers with know-how, so-called skilled staff, is expected to decrease in the future due to retirement. Many water supply facilities were built during the period of high growth, and although it is in the period of renewal, it may be used continuously depending on the financial situation. Under such circumstances, it is expected that the risk of deterioration of the quality of water service will increase as a result of increased malfunctions of the equipment and decreased know-how.
However, the know-how of the skilled worker has a lot of tacit knowledge, and visualization of the know-how of the skilled worker is strongly desired. Therefore, for example, Patent Document 1 that discloses a workflow management apparatus that adds a new workflow to an initial workflow based on the behavior of skilled staff has been proposed. In the workflow management apparatus described in Patent Document 1, an initial workflow is set, and an action corpus in which actions and position data are associated with each other is set. Then, the position data of the expert is generated based on the field image of the expert and the identification information of the field camera worn by the expert, and the action corresponding to the position data is extracted from the action corpus. Then, the workflow is updated by adding the extracted action to the initial workflow, and the changed workflow is displayed.

JP 2012-146202 A

However, in the configuration of Patent Document 1, the workflow is simply updated on the premise that the behavior of the expert is absolute (proper), and based on the result of the workflow update, that is, based on the updated workflow. No consideration is given to feeding back the results of actions or operations.
Thus, the present invention provides a maintenance management support apparatus for water supply facilities that can enable appropriate maintenance of water supply facilities and stable supply of appropriate water quality based on past results based on the degree of activity and prediction by simulation, and monitoring control having the same To provide a system.

In order to solve the above-mentioned problem, a maintenance management support apparatus for a water supply facility according to the present invention is a maintenance management support apparatus for a water supply facility connected to a monitoring control device and at least one water supply facility via a network. The work based on at least the movement distance from the video acquisition unit that monitors the movement distance of the worker working in the water supply facility and the audio signal from the audio acquisition unit that acquires the audio signal including the conversation of the worker An index calculation unit for determining the activity level of the staff, (2) an activity record database that stores past operation conditions and work contents of various facilities in the water supply facility and operation results in association with each other, and (3) the monitoring and control device Whether the various facilities are in an unsteady state based on the current operating conditions of the various facilities obtained and information stored in the activity record database and the activity level of the worker And a simulation unit that predicts the state of the water supply facility after a predetermined period of time based on the corresponding past operating conditions, and the simulation results satisfy at least a predetermined water quality and / or It is characterized by presenting work contents.
The monitoring control system for a water supply facility of the present invention is a monitoring control system for a water supply facility that has a monitoring control device that is connected to at least one water supply facility via a network and monitors various facilities in the water supply facility. (1) a video acquisition unit that monitors the movement distance of a worker working in the water supply facility, (2) a voice acquisition unit that acquires a voice signal including a conversation of the worker, and (3) the various facilities. An activity record database that stores past operation conditions and work contents and operation results in association with each other; and (4) an index calculation unit that obtains the activity level of the worker based on the movement distance of the worker and the audio signal; (5) Based on the current operating conditions of the various facilities obtained from the monitoring control device, information stored in the activity record database, and the activity level of the workers, A simulation unit that determines whether or not the facility is in an unsteady state and predicts the state of the water supply facility after a predetermined time based on a corresponding past operation condition, and the simulation result has at least a predetermined water quality. The operation of the water supply facility is controlled based on the operating conditions to be satisfied.

ADVANTAGE OF THE INVENTION According to this invention, optimization of the maintenance of water supply facilities and stable supply of appropriate water quality are realizable by the past performance based on an activity degree, and the prediction by simulation.
Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

1 is an overall configuration diagram of a monitoring and control system for a water supply facility according to an embodiment of the present invention. It is a functional block diagram of the maintenance management assistance apparatus shown in FIG. It is a figure explaining the data structure of the activity record database shown in FIG. FIG. 3 is a processing flowchart of the correlation processing unit shown in FIG. 2. FIG. 3 is a processing flowchart of the support information search unit shown in FIG. 2.

In this specification, the “water supply facility” includes a water supply facility and a sewerage facility, and includes only the water supply facility or only the sewerage facility.
Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is an overall configuration diagram of a monitoring and control system for a water supply facility according to an embodiment of the present invention. As shown in FIG. 1, the monitoring control system 1 includes a maintenance management support device 2, a monitoring control device 3, an external server 4, a waterworks facility 5 a, a sewerage facility 5 b, and a network 6 that connects these to each other so that they can communicate with each other. . In FIG. 1, one water supply facility 5a and one water supply facility 5b are shown. However, the present invention is not limited to this, and a plurality of water supply facilities 5a and a plurality of sewer facilities 5b, one water supply facility 5a, or one water supply facility 5b. The sewerage facility 5 b may be connected to the maintenance management support device 2, the monitoring control device 3, and the external server 4 via the network 6.

  The water supply facility 5 a includes a water intake facility 11, a water purification / sludge treatment facility 12, a water transmission / distribution facility 13, and a pipe network facility 14. The water intake facility 11 has a water intake pump (not shown), takes rivers or groundwater as raw water, and sends the raw water to the water purification / sludge treatment facility 12. The water purification / sludge treatment facility 12 has a water purification plant and a water pump (not shown), injects chemicals such as chlorine into the raw water introduced into the water purification plant, and supplies the purified raw water (water) to the water pump and water pump. The water pipe is used to send water to the water distribution facility 13. The water transmission / distribution facility 13 includes a water pump and a storage tank (reservoir) (not shown) and the like, and supplies the water stored in the distribution reservoir to the pipe network facility 14 by natural flow or a water pump. The pipe network facility 14 has a water distribution pump (not shown) and a water distribution pipe network, and supplies clean water to each water consumer via the water distribution pump and the water distribution pipe network. The water intake facility 11, the water purification / sludge treatment facility 12, and the water transmission / distribution facility 13 are facilities that can be easily accessed by workers. On the other hand, since the pipe network facility 14 has a water distribution pipe network buried underground, access to the water distribution pipe network requires excavation and the like. Equipment (equipment) installed in water intake facility 11, water purification / sludge treatment facility 12, and transmission / distribution facility 13, or pressure gauge, flow meter or water quality meter (not shown) installed in pipe network facility 14 Among them, a device having a communication function can communicate with the maintenance management support device 2 and the monitoring control device 3 via the network 6. In addition, the maintenance management support device 2 and / or the monitoring control device 3 can acquire various types of information from the external server 4 connected to the network 6.

  As shown in FIG. 1, the water intake facility 11 is provided with a video acquisition unit 7a such as a monitoring camera and a voice acquisition unit 8a such as a microphone or a telephone. It is desirable to set the imaging field of view by the video acquisition unit 7a within a field of view that allows simultaneous imaging of various devices (equipment) in the water intake facility 11 and workers operating the facility. Similarly, a video acquisition unit 7b and an audio acquisition unit 8b are installed in the water purification / sludge treatment facility 12, and a video acquisition unit 7c and an audio acquisition unit 8c are installed in the water transmission and distribution facility 13. In addition, what is necessary is just to determine the installation number of these image | video acquisition parts 7a-7c and audio | voice acquisition parts 8a-8c suitably according to the scale of each facility, or the number of workers who work in the said facility. Workers working in the water supply facility 5a have portable terminals 9a and 9b, respectively. The mobile terminals 9a and 9b are, for example, a smartphone, a tablet, or a wearable computer. The geographical position of the worker in the water supply facility 5 a is acquired by the GPS (Global Positioning System) function provided in the mobile terminals 9 a and 9 b and transmitted to the maintenance management support device 2 via the network 6. Moreover, the video acquisition part 7a-7c or the audio | voice acquisition part 8a-8c installed in the water intake facility 11, the water purification / sludge treatment facility 12, and the water transmission / distribution facility 13 with the imaging function or audio | voice acquisition function with which portable terminal 9a, 9b is equipped. Then, a video signal or an audio signal at a place not covered is acquired and transmitted to the maintenance management support apparatus 2 via the network 6. The mobile terminals 9a and 9b can also identify the worker who owns the portable terminal 9a, 9b, that is, identify the worker.

  The sewerage facility 5b includes at least a first sedimentation tank 15, a biological treatment tank 16, and a final sedimentation tank 17. The first sedimentation basin 15 introduces sewage (raw water) such as domestic wastewater or industrial wastewater, and sludge contained in the raw water settles down to the bottom surface of the first sedimentation basin 15 by gravity sedimentation. First, the sludge in the sedimentation basin 15 is scraped to a sludge pit by a sludge scraper (not shown), and the supernatant liquid is introduced into the biological treatment tank 16. The biological treatment tank 16 has activated sludge inside, and nitrifies and / or denitrifies sewage that flows from the first sedimentation basin 15 by the activated sludge. Sewage after nitrification and / or denitrification flows into the final sedimentation basin 17 together with activated sludge. The final sedimentation basin 17 precipitates activated sludge in sewage after nitrification and / or denitrification to the bottom surface of the final sedimentation basin 17 by gravity sedimentation, and discharges the supernatant. The activated sludge settled on the bottom surface of the final sedimentation basin 17 is scraped to a sludge pit by a sludge scraper (not shown) and returned to the biological treatment tank 16 by a sludge return pump (not shown). The activated sludge returned to the biological treatment tank 16 is again subjected to nitrification and / or denitrification of sewage that flows from the first settling basin 15 again. A sludge scraper (not shown) installed in the first settling tank 15 and the final settling tank 17 and an aeration apparatus (not shown) for supplying air to microorganisms in the activated sludge in the biological treatment tank 16. ) And the like can communicate with the maintenance management support device 2 and / or the monitoring control device 3 via the network 6.

  As shown in FIG. 1, the first settling basin 15 is provided with a video acquisition unit 7 d and an audio acquisition unit 8 d. It is desirable that the imaging field of view by the image acquisition unit 7d is set to a field of view range in which a sludge scraper (not shown) and the worker working in the first settling basin 15 can be simultaneously imaged. Similarly, the biological treatment tank 16 is provided with a video acquisition unit 7e and an audio acquisition unit 8e, and the final sedimentation basin 17 is provided with a video acquisition unit 7f and an audio acquisition unit 8f. In addition, what is necessary is just to set suitably the installation number of these image | video acquisition parts 7d-7f and audio | voice acquisition parts 8d-8f according to the scale of the first sedimentation tank 15, the biological treatment tank 16, and the final sedimentation tank 17. FIG. Workers working in the sewerage facility 5b have portable terminals 9c and 9d, respectively, and the geographical position of the worker in the sewerage facility 5b is acquired by the GPS function, and is maintained and managed via the network 6. It is transmitted to the support device 2. Similarly to the case of the water supply facility 5a described above, video signals or audio signals in places not covered by the video acquisition units 7d to 7f and the audio acquisition units 8d to 8f are acquired by the mobile terminals 9c and 9d, and the network 6 Is sent to the maintenance management support device 2 via.

The information handled by the maintenance support device 2 includes information for calculating the activity level of workers (users) working in the water supply facility 5a and the sewerage facility 5b, operation status of each facility, and operation results. Information. In the following, for convenience of explanation, a case where one water supply facility 5 a is connected to the maintenance management support device 2, the monitoring control device 3, and the external server 4 via the network 6 as an example is described. To do.
The maintenance management support device 2 uses the network 6 from the external server 4 to make publicly available information such as river water level, dam discharge, weather conditions (rainfall, rainfall forecast, temperature), etc. Acquired together with observation area information or date and time information. Such information may be purchased not only from a server that can be obtained free of charge, but also from a server that provides detailed information for a fee.
In addition, the maintenance management support device 2 acquires process data, water quality data, and alarm data (alarm output) in the water supply facility 5 a from the monitoring control device 3 via the network 6. Among the information acquired from the monitoring control device 3, the current and voltage of the water intake pump, the water intake amount, the discharge pressure, the presence or absence of oil detection, the water intake turbidity, the water intake pH, and the like are acquired from the water intake facility 11. From the water purification / sludge treatment facility 12, the current and voltage of the water pump, discharge pressure, flow rate, loss head, chemical and gas injection rate, water temperature, turbidity, pH, sludge discharge time, sludge concentration, and the like are acquired. Further, from the water supply / distribution facility 13, the current and voltage of the water supply pump, the discharge pressure, the flow rate, the water quality, the water level of the distribution reservoir, the injection rate of the medicine, and the like are acquired. From the pipe network facility 14, the current and voltage of the water distribution pump, the discharge pressure, the flow rate, the water quality, and the like are acquired.

The video acquisition units 7a to 7c acquire a moving image for detecting the movement of a worker (user). Therefore, as an installation location, a point where an operator (user) moves or operates is included in the imaging field of view. For example, in the case of the water purification / sludge treatment facility 12, there are a water purification plant management room, an entrance / exit, a water quality analysis room, an operation panel, a pump room, a chemical tank, a parking lot, and the like. In addition, it is desirable to install the video acquisition units 7a to 7c at positions where the above-mentioned place can be observed from above.
The voice acquisition units 8a to 8c acquire voice signals when the worker (user) is talking or making a phone call. Therefore, the installation location includes a location where a plurality of workers (users) gather and a location where a telephone conversation is assumed. For example, in the case of the water purification / sludge treatment facility 12, there are a water purification plant management room, the vicinity of the operation panel, a pump room, a guardhouse, an office, and the like. The voice acquisition units 8a to 8c have a mode of acquiring a voice signal of a telephone conversation as an application of the mobile terminals 9a and 9b or an application of an external / extension device in addition to a mode of acquiring a voice signal of an installed place. Also good.

  FIG. 2 is a functional block diagram of the maintenance management support apparatus 2 shown in FIG. As shown in FIG. 2, the maintenance management support device 2 includes a communication I / F 21, an index calculation unit 22, a correlation processing unit 23, an activity record database (DB) 24, a support information search unit 25, and a simulation unit 26. These are connected to each other via an internal bus 27. Here, the index calculation unit 22, the correlation processing unit 23, the support information search unit 25, and the simulation unit 26 are, for example, a ROM that stores various programs (not shown), a RAM that temporarily stores data of calculation processes, or an external This is realized by a storage device such as a storage device, and a processor such as a CPU that reads and executes various programs stored in the ROM and stores the execution results in the RAM or the external storage device.

  The communication I / F 21 communicates with the water supply facility 5 a, the monitoring control device 3, and the external server 4 via the network 6. Although details will be described later, the activity record database (DB) 24 includes a network 6 and a communication I / F 21 from the video acquisition units 7a to 7c, the audio acquisition units 8a to 8c, and the mobile terminals 9a and 9b installed in the water supply facility 5a. And the above information is stored via the internal bus 27. Similarly, the activity record database (DB) 24 is a predetermined one set in advance by an operator (user) among the above-described process data, water quality data, and alarm data (alarm output) managed by the monitoring control device 3. The data of the item is periodically stored. Furthermore, the activity record database (DB) 24 periodically stores data of predetermined items acquired from the external server 4.

The index calculation unit 22 calculates the activity level A of the worker (user). In this embodiment, the activity level A is defined as follows.
(1) Activity A1 associated with movement
The index calculation unit 22 takes in the video signals (moving images) from the video acquisition units 7a to 7c, and calculates the frame difference within the imaging visual field range of a plurality of image frames (for example, 30 frames / sec) included in the video signals. Based on this, the movement distance of the worker (user) per unit time is calculated. Moreover, the movement distance of the worker (user) outside the imaging visual field range of the video acquisition units 7a to 7c is calculated using the GPS function of the mobile terminals 9a and 9b. Here, the activity A1 (−) is obtained by the following equation (1) without considering the manner in which the worker has moved.
A1 = k1 × ΣLi (1)
Here, Li: the movement distance (m) in the i-th movement, k1: constant (1 / m).
(2) Activity A2 associated with conversation
Based on the audio signals from the audio acquisition units 8a to 8c, the index calculation unit 22 obtains the time when the conversation by the workers (users) can be recognized and the number of participants in the conversation, and the activity level A2 (−) Is obtained by the following equation (2). The voice acquisition units 8a to 8c preferably have a voice recognition function.
^{A2 = k2 × Σ (Ci m} · Ti) ··· (2)
Here, Ci is the number of participants in the i-th conversation (person), Ti is the conversation time (min) of the i-th conversation, m is a constant (−), and k2 is a constant (min / person ^{m 2} ).
(3) Activity level A3 associated with work
Operations such as operation of each facility (equipment) constituting the water supply facility 5a, equipment maintenance and inspection, water quality analysis, e-mail exchange, web and document surveys, etc., have less travel distance or voice conversation, but the results are The degree of importance is high in terms of the processing performance of each facility (equipment) that constitutes the water supply facility 5a and a judgment material for dealing with defects. Therefore, the index calculation unit 22 obtains the activity level A3 by the following formulas (3) to (7).
Number of operations from the monitoring control device 3 or the operation panel (A31)
Worker's stay time at a predetermined place (A32)
Number of mail sent and received (A33)
Access time to a predetermined website or operation time of a PC or mobile terminal during access (A34)
A3 = A31 + A32 + A33 + A34 (3)
A31 = Σ (k31i × Di) (4)
A32 = Σ (k32i × Ei) (5)
A33 = k33 × F (6)
A34 = Σ (k34i × Hi) (7)
Here, Di: Number of operations from terminal i or operation panel (times), Ei: Stay time at location i (min), F: Number of times of sending mail (times), Hi: Viewing time of website i (min), k31i (1 / time), k32i (1 / min), k33 (1 / time), k34i (1 / min): constants.

Using the “activity level A1 associated with movement”, “activity level A2 associated with conversation”, and “activity level A3 associated with work” described above, the index calculation unit 22 calculates the activity level A by the following equation (8). .
A = A1 + A2 + A3 (8)
This activity A is calculated only for a predetermined period, and is used to determine a period when the activity A is relatively low as a normal state and a period when the activity A is high as an unsteady state.

In this embodiment, the activity level A is obtained as the sum of “activity level A1 associated with movement”, “activity level A2 associated with conversation”, and “activity level A3 associated with work”. Not limited. For example, “activity level A1 associated with movement”, “activity level A2 associated with conversation”, and “activity level A3 associated with work” may be used alone as activity level A, or a combination of these two ( Sum) may be used as the activity A.
Further, the input item or calculation method of the activity level A is not necessarily limited to the above. For example, the status of a worker (user) (holiday or a staff member in a different department is in charge) may be reflected in the constant. Further, only the activities of a predetermined worker (user), for example, a skilled staff, may be collected, and the collected result may be stored in the activity database (DB) 24. Further, the activity level A may be estimated using only an external event that causes the activity level of the worker (user) to increase. In this case, the external event corresponds to a weather condition or a device malfunction.

Next, the operation of the correlation processing unit 23 will be described. The correlation processing unit 23 associates the activity level A obtained by the index calculation unit 22 with other information stored in the activity record database (DB) 24 and records it in the activity record database (DB) 24. FIG. 4 is a processing flowchart of the correlation processing unit 23 constituting the maintenance management support apparatus 2 shown in FIG.
As shown in FIG. 4, the correlation processing unit 23 acquires the activity A calculated by the index calculation unit 22 via the internal bus 27 together with time (step S11). Next, in step S12, the correlation processing unit 23 determines whether or not the acquired activity A is equal to or greater than a predetermined threshold ε. Here, as the value of the predetermined threshold ε, for example. The intermediate value of the past activity level A in the non-steady state or the average value of the past activity level A is used.

As a result of the determination in step S12, if the activity A is smaller than the predetermined threshold ε, the process proceeds to step S13. In step S <b> 13, the correlation processing unit 23 determines whether or not a predetermined time (t _A ) has elapsed since the activity A has decreased below the predetermined threshold ε. If the predetermined time (t _A ) has already elapsed, the process returns to step S11. If the predetermined time (t _A ) has not yet elapsed, the process proceeds to step S14. Here, the predetermined time (t _A ) is appropriately set between 1 hour and 48 hours, for example. As a reason for determining whether or not the predetermined time (t _A ) has elapsed in step S13 as described above, a case where the change in the activity level A acquired from the index calculation unit 22 is an instantaneous case. Assumed. That is, there may be a case where the activity A becomes equal to or greater than the predetermined threshold ε after the activity A temporarily decreases and becomes smaller than the predetermined threshold ε. Therefore, the configuration returns to step S11 only when a predetermined time (t _A ) has elapsed from the time when the activity level A becomes smaller than the predetermined threshold ε. On the other hand, before the predetermined time (t _A ) elapses, it is assumed that the activity A will be equal to or higher than the predetermined threshold ε later. In this case, the process proceeds to step S14.
On the other hand, if the result of determination in step S12 is that the activity level A is greater than or equal to the predetermined threshold ε, the process proceeds to step S14.
In step S14, the correlation processing unit 23 determines whether any abnormality has occurred in the water supply facility 5a before or after a predetermined time (t _B ). Here, the abnormality of the water supply facility 5a includes deterioration of the quality of treated water after each water treatment step in the water intake facility 11, the water purification / sludge treatment facility 12, and the water transmission / distribution facility 13. Moreover, the performance deterioration of equipment, such as a water intake pump, a water conveyance pump, a water supply pump, and a water distribution pump, is included. Furthermore, it includes external water quality deterioration or natural disasters (typhoons, torrential rains, earthquakes, etc.) that are external factors. The presence or absence of these abnormalities provides some quantitative determination conditions. For example, water quality target value, equipment efficiency, seismic intensity, rainfall, alarm output, etc. Here, as the predetermined time (t _B ), for example, a desired time may be appropriately set between 1 hour and 48 hours. The correlation processing unit 23 proceeds to step S15 when detecting that an abnormality has occurred in the water supply facility 5a or an abnormality has occurred under the above quantitative determination condition, while detecting the occurrence of an abnormality. If not, the process proceeds to step S17.

In step S15, the correlation processing unit 23 sets the date and time when the activity level A is acquired in step S11 described above as an unsteady state time. Next, in step S <b> 16, the correlation processing unit 23 accesses the activity record database (DB) 24 via the internal bus 27 and sets a flag on a predetermined data item having a date and time corresponding to the unsteady state time. Here, the data items to be flagged may be all items stored in the activity record database (DB) 24, but are not necessarily limited thereto. For example, at least the data item corresponding to the abnormality that has occurred in the water supply facility 5a may be included in step S14 described above.
Next, in step S <b> 17, the correlation processing unit 23 determines whether or not the operator (user) has stopped processing and has accepted the input, that is, whether or not the operation of the maintenance management support device 2 should be stopped. judge. As a result of the determination, when the operation of the maintenance management support apparatus 2 should be stopped, the correlation processing unit 23 ends the process. On the other hand, as a result of the determination, if the operation of the maintenance management support device 2 is to be continued, the process returns to step S11, and the correlation processing unit 23 repeatedly executes the series of processes described above.
In step S16 described above, the data item for which the flag in the activity record database (DB) 24 is set may be only the operation or work content for the facility / equipment performed by a specific skilled staff member (user).

FIG. 3 is a diagram for explaining the data structure of the activity record database (DB) 24 shown in FIG. In FIG. 3, in particular, data items associated with the activity level A acquired from the index calculation unit 22 by the correlation processing unit 23 configuring the above-described maintenance management support apparatus 2 are illustrated.
As shown in FIG. 3, the activity record database (DB) 24 has at least the items “facility / equipment relating to activity level, work contents and external information” and “result: feedback information”, and is an example shown in FIG. Shows a state classified into six classifications. Here, in the item “facility / equipment related to activity, work content and external information”, the past work content for the facility / equipment is used as the operating condition, and the operation result of the facility / equipment based on the operating condition is displayed in the operation history. (Not shown). The information stored in the item “result: feedback information” indicates a data item linked to the activity level A. As a result, the feedback information indicates that the item “facility / equipment related to activity level, work content and Stored in correspondence with each operation condition (work content) stored in the “external information” column.

For example, in the classification 1, that is, the item “No. 1”, the operation conditions stored in the item “facility / equipment related to activity, work content and external information” are “manual adjustment of the flocculant injection rate”, “ Jar test ”,“ Communication with upstream water supply entities (confirmation of turbidity changes over time, etc.) ”,“ Temporary inspection and maintenance of water intake equipment ”,“ Number of times of filtration basin washing ”, and“ Sludge treatment equipment Adjustment ". The data item associated with these six operating conditions (work contents) is “increased sedimentation pond turbidity” stored in the item “result: feedback information”. For example, the turbidity is “1 degree” or more. As a feedback information,
In addition, in the category 3, that is, the item “No. 3”, the operation condition stored in the item “facility / equipment related to activity, work contents and external information” is “actual flow rate with respect to the planned flow rate”, “allocation”. “Temporary inspection and maintenance of water ponds and pumping stations”, “Communication with water supply department”, and “Manual water intake restriction”. The data items associated with these four operating conditions (work contents) are “reservoir water level drop” and “alarm output” stored in the item “result: feedback information”, and “reservoir water level drop”. Indicates, for example, that the water level in the reservoir has fallen below the lower limit, and is used as feedback information together with an alarm output.
The classification 5, that is, the item “No. 5”, shows an example of an external factor that is a natural disaster, and the operation conditions stored in the item “facility / equipment related to activity, work content, and external information” are as follows: “Occurrence of earthquakes”, “Investigation of damage to water supply facilities such as pipelines”, “Refer to disaster (earthquake) manual”, “Communication with local government disaster departments or external water supply related organizations”, and “Water trucks” Water supply activities ". The data items associated with these five operating conditions (work contents) are “reduction in operation time of water supply facility” and “alarm output” stored in the item “result: feedback information”. It indicates that the daily operation time has decreased to 50% of the operation time in the operation plan based on the water operation plan, and is used as feedback information together with an alarm output.

Next, the simulation part 26 which comprises the maintenance management assistance apparatus 2 shown in FIG. 2 is demonstrated. The simulation unit 26 is used to make a basis for determining the priority of the support information to be presented based on the information stored in the activity record database (DB) 24. The simulation unit 26 has a function of modeling each device / process in the water supply facility 5a and simulating at least one of water volume, water pressure, and water quality. Here, each model corresponding to each device / process in the water supply facility 5a can output the calculation result of each process according to the input value of the raw water quality or the amount of water intake with each device in a healthy state. In addition to this, each model can also be calculated when the performance is worse than the design specifications, such as when a malfunction occurs in the equipment, and the degree of deterioration is set appropriately by an operator (user).
In the present embodiment, when the correlation processing unit 23 determines that the activity A has increased to a predetermined threshold value ε or more in step S12 shown in FIG. In response to the activation command from the correlation processing unit 23, the system operates. The input condition to the simulation unit 26 is a malfunction of equipment such as a water intake pump, a water pump, a water pump, and a water distribution pump, or a value of external information (for example, weather conditions including rainfall, etc.) is deteriorated. It is assumed that the conditions are assumed.

FIG. 5 is a process flow diagram of the support information search unit 25 configuring the maintenance management support apparatus 2 shown in FIG. The support information search unit 25 has a function of presenting a driving operation corresponding to a predetermined data item (step S16 in FIG. 4) flagged in the activity record database (DB) 24 by the correlation processing unit 23 described above.
As shown in FIG. 5, the support information search unit 25 acquires the activity level A obtained from the index calculation unit 22 through the internal bus 27 together with the time. Thereafter, the support information search unit 25 determines whether or not the acquired activity A is greater than or equal to a predetermined threshold value ε (step S21). Here, as the value of the predetermined threshold ε, for example. The intermediate value of the past activity level A in the non-steady state or the average value of the past activity level A is used. If the determination result in step S21 is “activity A is greater than or equal to predetermined threshold ε”, the process proceeds to next step S22. On the other hand, when the determination result is “activity A is smaller than predetermined threshold value ε”, the process proceeds to step S29. In this step S21, instead of the configuration in which the support information search unit 25 acquires the activity level A from the index calculation unit 22 through the internal bus 27 and compares it with the predetermined threshold value ε, the following configuration may be used. good. That is, the determination result (step S12 in FIG. 4) of “whether the activity A is greater than or equal to the predetermined threshold ε” by the correlation processing unit 23 shown in FIG. 4 described above is acquired via the internal bus 27. It is good also as composition to do.

In step S <b> 22, the support information search unit 25 refers to the activity record database (DB) 24 via the internal bus 27. Then, from the past cases (past performance data) stored in the activity record database (DB) 24, a plurality of past cases whose “activity A is equal to or greater than a predetermined threshold ε” are extracted.
Next, in step S23, it is installed in the water intake facility 11, the water purification / sludge treatment facility 12, the water transmission / distribution facility 13, and the pipe network facility 14 that constitute the water supply facility 5a from among the extracted past cases. A past case having an operation condition similar to the current operation condition of equipment such as a pump is searched. Here, parameters such as operation series, flow rate, raw water quality (for example, turbidity, etc.), presence / absence of alarm output (assign a predetermined numerical value according to the presence / absence of alarm output), etc. are parameters. For each of these parameters, the difference between the current value and the extracted past cases is obtained. Then, for each extracted past case, the difference in each parameter is summed, and the past value that is most similar is extracted by comparing the total value with a predetermined threshold value. Here, the current values of the respective parameters are acquired from the monitoring control device 3 via the communication I / F 21 and the network 6. Not limited to this, instead of obtaining the difference between the current value and the extracted past case for each parameter, the predetermined parameter is totaled for each of the current value and a plurality of extracted past cases. A past case whose result is closest to the current value may be extracted.

  Subsequently, in step S24, the support information search unit 25 acquires an input data set for simulation. Specifically, the current operation condition or water quality condition is set as an initial condition, and the support information search unit 25 acquires the initial condition from the monitoring control device 3 via the communication I / F and the network 6. As for past similar driving conditions, the support information search unit 25 reads out and acquires the driving conditions in the past case retrieved in step S23 from the activity record database (DB) 24 via the internal bus 27. .

In step S25, the support information search unit 25 outputs the simulation input data set (current and similar past case operation conditions) obtained by the process in step S24 to the simulation unit 26 via the internal bus 27. . The simulation unit 26 uses the simulation input data set obtained from the support information search unit 25 to calculate the state of the water supply facility 5a after a predetermined time (t _C ). Here, for example, 1 to 48 hours is set as the predetermined time (t _C ). The simulation unit 26 executes a simulation from 1 hour to 48 hours later, and predicts the state of the water supply facility 5a at each time. The contents of the simulation to be executed are for the water intake facility 11, the water purification / sludge treatment facility 12, the water transmission / distribution facility 13, and the pipe network facility 14 that constitute the water supply facility 5a, and by the operation of the equipment in each facility. Calculate water volume, water pressure and water quality. It is desirable that the simulations of each facility constituting these waterworks facilities 5a be linked, but if the influence range of the unsteady state in the past cases is limited to some facilities, the simulation may also be limited to the corresponding facility, There is no particular problem.

  In step S <b> 26, the simulation unit 26 outputs the simulation result to the support information search unit 25 via the internal bus 27. The support information search unit 25 determines whether the output value of the predetermined item satisfies a predetermined target range based on the simulation result acquired from the simulation unit 26. Here, the output value of the predetermined item is the amount of treated water, the treatment to the water tank (distribution reservoir, etc.), the status of alarm output, and the energy used (for example, power consumption by various pumps), each satisfying the target range. The support information search unit 25 determines whether or not. As a result of the determination, if there is an satisfied item, the process proceeds to the next step S27. On the other hand, if there is no satisfactory item as a result of the determination, the process proceeds to step S29.

In step S27, the support information search unit 25 calculates an appropriateness index. Here, the appropriateness index is a numerical value obtained by normalizing the difference between the output value of the predetermined item used in step S26 described above and a preset target value.
In step S28, the support information search unit 25 presents the appropriateness index calculated in step S27 to the worker (user). Specifically, the calculated appropriateness index is displayed on a display unit provided in the maintenance management support device 2 (not shown) via the internal bus 27 and an input / output I / F (not shown). Further, the support information search unit 25 outputs the calculated appropriateness index to the network 6 via the internal bus 27 and the communication I / F 21 and is installed in the water supply facility 5 a connected to the network 6 (not shown). It displays on the display part of portable terminal 9a, 9b which a worker (user) possesses by a wireless communication terminal.

  In step S29, the support information search unit 25 determines whether or not the processing stop by the worker (user) has been received and whether or not the input has been accepted, that is, whether or not the operation of the maintenance management support device 2 should be stopped. . As a result of the determination, when the operation of the maintenance management support apparatus 2 should be stopped, the support information search unit 25 ends the process. On the other hand, as a result of the determination, if the operation of the maintenance management support device 2 is to be continued, the process returns to step S21, and the support information search unit 25 repeatedly executes the series of processes described above.

Note that the simulation method executed by the simulation unit 26 is not limited to the above-described method, and a known simulation method may be used. When a new process or equipment is targeted, the simulation process is performed on the new process or equipment. Build the corresponding model.
For example, when the activity level A related to the sedimentation water turbidity indicated in the item “result: feedback information” in the classification 1 in FIG. Execute water treatment simulation of precipitation treatment process. In this case, the support information search unit 25 receives the raw water quality (turbidity, water temperature, water temperature) from the activity record database (DB) 24 constituting the monitoring control device 3 and the maintenance management support device 2 in the above-described step S24 (FIG. 5). pH), amount of water, flocculant injection rate, operating conditions of flash mixer for rapid stirring, operating conditions of flocculator for slow stirring, precipitation treated water quality (turbidity, pH) To the simulation unit 26. The support information search unit 25 compares the simulation result acquired from the simulation unit 26 via the internal bus 27 with the actual sedimentation water turbidity (for example, the target range is 0 to 1 degree), and the proper operation Determine the degree.

  In this embodiment, the monitoring control device 3 and the maintenance management support device 2 are provided as shown in FIG. 1, but the present invention is not limited to this. For example, you may comprise so that the function of the maintenance management assistance apparatus 2 mentioned above may be integrated in the monitoring control apparatus 3. FIG.

According to the present embodiment, it is possible to realize appropriate maintenance and management of water supply facilities and stable supply of appropriate water quality based on past results based on the degree of activity and prediction by simulation.
Further, according to the present embodiment, know-how including tacit knowledge of a skilled staff (skilled user) is detected as an activity level and associated with a specific driving operation, whereby the know-how can be visualized. Also, in the unsteady state with a high degree of activity, based on past results and future predictions through simulations, the operating conditions are presented in order from the appropriate one, thereby optimizing maintenance and management, unskilled workers (unskilled users) ) Operation errors can be reduced, and finally it is possible to provide a stable supply with an appropriate amount of water and quality.

  In the present embodiment, in addition to the configuration shown in the first embodiment described above, the network 6 shown in FIG. 1 is installed as external information in a water supply related organization that manages the water supply facility (water supply facility 5a and / or sewerage facility 5b). This embodiment is different from the first embodiment in that an electronic terminal that can be operated by a server or a person concerned with the water supply related organization is connected. The other points are the same as in the first embodiment, and the description overlapping with the first embodiment is omitted below.

A monitoring control system 1 shown in FIG. 1 is a server (not shown, hereinafter referred to as a server) installed in a water supply related organization that manages a water supply facility 5a and / or a sewerage facility 5b connected to a network 6. It further includes an electronic terminal (not shown, hereinafter referred to as an electronic terminal) that can be operated by a water supply related organization.
The maintenance management support device 2 is configured to communicate with the monitoring control device 3, the external server 4, and the server or electronic terminal via the network 6 and acquire various types of information. Here, as said water supply related organization, there are other water supply entities of the same water system, foundations, governmental organizations, companies that provide water supply related equipment, and citizens, for example. From these servers or electronic terminals via the network 6, the maintenance management support device 2 provides, as external information, river information, water quality, weather, epidemic epidemic, accident status, equipment used for maintenance and repair, operation procedures, Obtain information such as maintenance procedures. Specifically, the various types of information are fetched via the communication I / F 21 shown in FIG. 2 and stored in a predetermined storage area of the activity record database (DB) 24 via the internal bus 27.
In addition, the voice acquisition unit 8a installed in the water intake facility 11 and the voice acquisition unit 8b installed in the water purification / sludge treatment facility 12 and the voice installed in the water transmission / distribution facility 13 constituting the water supply facility 5a shown in FIG. Each acquisition unit 8c has a voice recognition function. Then, at least one of the voice acquisition units 8a, 8b, and 8c recognizes that the water-related organization and the worker (user) are communicating with each other by conversation or telephone by using the voice recognition function. The index calculation unit 22 (FIG. 2) constituting the maintenance management support apparatus 2 distributes a coefficient at the time of activity calculation largely. This indicates that assistance or information in a wide area or multi-sector is necessary for continuing the water service, and it can be determined that the degree of unsteady state of the facilities / equipment constituting the water supply facility 5a is large. It is. Specifically, the value of the constant k2 in the above equation (2) for calculating “activity A2 associated with conversation” described in the first embodiment is set high, and the index calculation unit 22 sets the activity A. calculate.

  According to the present embodiment, in addition to the effects of the first embodiment, it is possible to acquire information and handling methods such as operation operations held by the water-related organizations via the network, and it is possible to visualize a wider range of know-how. Become.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.

DESCRIPTION OF SYMBOLS 1 ... Monitoring control system 2 ... Maintenance management support apparatus 3 ... Monitoring control apparatus 4 ... External server 5 ... Water supply facility 5a ... Water supply facility 5b ... Sewerage facility 6 ... Network 7a, 7b, 7c, 7d, 7e, 7f ... Video acquisition unit 8a, 8b, 8c, 8d, 8e, 8f ... Audio acquisition unit 9a, 9b, 9c, 9d ... Mobile terminal 11 ...・ Intake facility 12 ... Water purification / sludge treatment facility 13 ... Water supply / distribution facility 14 ... Pipe network facility 15 ... First sedimentation basin 16 ... Biological treatment tank 17 ... Final sedimentation basin 21 ...・ Communication I / F
22 ... Index calculation unit 23 ... Correlation processing unit 24 ... Activity record database (DB)
25 ... Support information retrieval unit 26 ... Simulation unit 27 ... Internal bus

Claims (8)

A maintenance and management support device for a water supply facility connected via a network to a monitoring and control device and at least one water supply facility,
The work based on at least the movement distance from the video acquisition unit that monitors the movement distance of the worker working in the water supply facility and the audio signal from the audio acquisition unit that acquires the audio signal including the conversation of the worker An index calculation unit for determining the activity level of employees,
An activity record database that stores past operating conditions, work contents, and operation results of water supply facilities in association with each other;
Based on the current operating conditions of the various facilities obtained from the monitoring and control device, information stored in the activity record database, and the activity level of the workers, it is determined whether or not the various facilities are in an unsteady state. A simulation unit that predicts the state of the water supply facility after a predetermined time based on past operating conditions,
A maintenance support device for a water supply facility, wherein the simulation result presents an operation condition and / or work content satisfying at least a predetermined water quality. In the maintenance support apparatus of the water supply facility according to claim 1,
A support information retrieval unit that retrieves past operation conditions similar to the operation conditions of the various facilities when the activity level of the worker obtained by the index calculation unit is equal to or greater than a predetermined threshold from the activity record database; A maintenance support device for water supply facilities. In the maintenance support apparatus of the waterworks equipment of Claim 2,
The support information search unit is configured to determine the past operation conditions when the activity level of the worker is equal to or greater than a predetermined threshold and the current operation conditions of the various facilities obtained from the monitoring control device. A maintenance support device for water supply facilities, characterized in that it outputs to In the maintenance support apparatus of the water supply facility according to any one of claims 1 to 3,
The activity level of the worker calculated by the index calculation unit is:
Continuation of the conversation recognized based on at least the first activity based on the movement distance per unit time calculated based on the movement distance of the worker obtained from the video acquisition unit and the audio signal from the audio acquisition unit It is calculated based on any one of the second activity level based on time and the third activity level calculated based on the maintenance inspection work and / or water quality analysis work of the various facilities by the worker. A maintenance support device for water supply facilities. A monitoring and control system for a water supply facility, which is connected to at least one water supply facility via a network and has a monitoring control device for monitoring various facilities in the water supply facility,
A video acquisition unit for monitoring the distance traveled by workers working in the water supply facility;
A voice acquisition unit for acquiring a voice signal including the conversation of the worker;
An activity record database for storing past operation conditions and work contents of the various facilities and operation results in association with each other;
An index calculation unit for obtaining an activity level of the worker based on the movement distance of the worker and the audio signal;
Based on the current operating conditions of the various facilities obtained from the monitoring and control device, information stored in the activity record database, and the activity level of the workers, it is determined whether or not the various facilities are in an unsteady state. A simulation unit that predicts the state of the water supply facility after a predetermined time based on past operating conditions,
A monitoring and control system for a water supply facility, wherein the water supply facility is operated and controlled based on an operation condition that a simulation result satisfies at least a predetermined water quality. In the monitoring control system of the water supply facility according to claim 5,
A support information retrieval unit that retrieves past operation conditions similar to the operation conditions of the various facilities when the activity level of the worker obtained by the index calculation unit is equal to or greater than a predetermined threshold from the activity record database; A monitoring and control system for water supply facilities. In the monitoring control system of the water supply facility according to claim 6,
The support information search unit is configured to determine the past operation conditions when the activity level of the worker is equal to or greater than a predetermined threshold and the current operation conditions of the various facilities obtained from the monitoring control device. The monitoring control system of the water supply facility characterized by being output to. In the monitoring control system of the water supply facility according to any one of claims 5 to 7,
The activity level of the worker calculated by the index calculation unit is:
Continuation of the conversation recognized based on at least the first activity based on the movement distance per unit time calculated based on the movement distance of the worker obtained from the video acquisition unit and the audio signal from the audio acquisition unit It is calculated based on any one of the second activity level based on time and the third activity level calculated based on the maintenance inspection work and / or water quality analysis work of the various facilities by the worker. Monitoring system for water supply facilities.

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