JP3811063B2 - Controllability evaluation support system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a controllability evaluation support system that supports controllability evaluation of a control system in a remote place on the screen of a user terminal connected to a center.
[0002]
[Prior art]
In the building, for example, a plurality of air conditioning systems are provided as control systems, and the air conditioning is performed by sharing the area in the building by these air conditioning systems. In this air conditioning, various controls such as temperature control and humidity control are performed in each air conditioning system.
[0003]
Conventionally, evaluation of controllability of control items such as temperature control and humidity control in an air conditioning system has been performed by a service technician. For example, a data collection device was installed at the site, and it was taken home one week later. The data for one week was analyzed using an analysis tool, and the controllability was evaluated based on each person's experience and intuition. .
[0004]
[Problems to be solved by the invention]
However, in the above-described method, controllability can be evaluated with data in actual operation, but the number of man-hours such as attachment and recovery of the data collection device is abnormal. For this reason, conventionally, the controllability is evaluated only once or twice a year, and there are cases where complaints about the indoor environment are generated from the customer in the season other than the implementation period. In addition, the controllability is evaluated based on the experience and intuition of service technicians. Not only does it take time to create reports to be submitted to customers, but even if the data is the same, all service technicians receive the same evaluation. It was not always obtained.
[0005]
The present invention has been made in order to solve such problems, and the object of the present invention is to make it possible to evaluate controllability at any time based on data in actual operation and to improve the subjectivity of service technicians. The object is to provide a controllability evaluation support system in which anyone can obtain the same evaluation by eliminating as much as possible.
[0006]
[Means for Solving the Problems]
In order to achieve such an object, the present invention supports the evaluation of controllability of various control items of a control system in a remote place on the screen of a user terminal connected to the center. Data collection means for automatically collecting data of various control items of the system, data accumulation means for accumulating data collected by the data collection means, and each control item based on the data accumulated by the data accumulation means Controllability determination means for determining controllability according to a predetermined criterion and obtaining a determination result divided into at least three stages for each control item, and determination result for each control item obtained by this controllability determination means Is provided on the screen of the user terminal.
[0007]
According to the present invention, data of various control items of a control system in a remote place is automatically collected and stored, and controllability is determined according to a criterion determined in advance for each control item of the control system based on the stored data. Determination is performed, and a determination result divided into at least three stages is obtained for each control item of the control system. For example, the return air temperature control and the return air humidity control of the air conditioning system are set as control items, and determination results indicated by “◎”, “◯”, and “×” are obtained for each control item. In this case, for example, “◎” indicates “good”, “◯” indicates “control is good but needs to be inspected”, and “x” indicates “need to inspect”. In accordance with the determination result, the service engineer evaluates the final controllability by confirming the operation or performing readjustment.
[0008]
The determination result for each control item can be obtained, for example, in units of days, weeks, or months by determining the period of data to be used. Also, the judgment results for each control item can be displayed, such as displaying the judgment results for one week for each side by side, or displaying the judgment results for that week together with the judgment results for one week for each week. Various display methods are conceivable.
[0009]
The determination result for each control item may be obtained for each inspection item by defining the inspection item for the control item. For example, multiple check items such as return air temperature accuracy are defined as check items for return air temperature control, multiple check items such as return air humidity accuracy are defined as check items for return air humidity control, and for each check item of these control items Obtain the judgment result. In this case, a plurality of determination results are obtained for each control item. In the present invention, such a determination result is also defined as a determination result for each control item.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a configuration diagram of a remote maintenance system including an embodiment of a controllability evaluation support system according to the present invention.
[0011]
In the figure, reference numeral 1 denotes a building, and a building management system (BA system) 2 is provided in the building 1. The BA system 2 includes an upper controller 3, a lower controller 4, and a central monitoring unit (MCU) 5, and the MCU 5 and the upper controller 3 are connected by a communication line (LAN) provided in the building. The host controller 3 periodically collects information on various management points in the building 1 that are sucked up via the lower controller 4 and sends the information to the MCU 5.
[0012]
Reference numeral 6 denotes a center. A data collection server 7 and a controllability evaluation server 8 are provided in the center 6 and connected to a user terminal (user PC) 9 via a communication line.
[0013]
A data collection device 10 is provided in the building 1, and the data collection device 10 is connected to the BA system 2. The building 1 and the center 6 are located at a distance from each other, and the data collection server 7 in the center 6 and the data collection device 10 in the building 1 are connected to each other via a communication network 11. The controllability evaluation support system according to the present embodiment includes a data collection device 10, a data collection server 7, a control evaluation server 8, a user PC 9, and a communication network 11.
[0014]
The data collection device 10 automatically collects control data in the BA system 2 every hour or every minute. The data collection server 7 in the center 6 accesses the data collection device 10 in the building 1 via the communication network 11 and periodically fetches the collected control data. The data collection server 7 is a large capacity server and accumulates control data sent from the data collection device 10. The control data may be periodically sent from the data collection device 10 to the data collection server 7.
[0015]
The controllability evaluation server 8 performs controllability determination according to a predetermined criterion for each control item of each control system based on the control data stored in the data collection server 7, and controls each control item of each control system. The determination result divided into three stages is obtained. In this embodiment, inspection items are further defined for each control item, and determination results divided into three stages are obtained for each inspection item. Hereinafter, in the present embodiment, the control item determination result means a determination result for each inspection item of the control item.
[0016]
The controllability evaluation server 8 performs controllability determination for each control item of each control system on a daily basis, and stores the determination result in association with the date. That is, the controllability evaluation server 8 sets the predetermined period as one day, determines controllability based on the control data for one day, and stores the determination result in association with the date.
[0017]
FIG. 2 illustrates determination criteria determined for each control item. FIG. 2 (a) shows a criterion for cooling when the control item is the return air temperature control. FIG. 2 (b) shows the judgment criteria during heating when the control item is return air humidity control. For these inspection items, criteria such as those shown in the figure are set, and three-stage judgment results indicated by “◎”, “◯”, and “×” are obtained. In this case, “◎” indicates “good”, “◯” indicates “control is good but requires inspection”, and “×” indicates “necessary inspection”. Note that this determination criterion is an example, and for example, the determination criterion may be changed for each season.
[0018]
[Criteria for cooling during the return air temperature control]
Air-conditioner operation time zone excluding warm-up time zone (for example, 30 minutes of rising) is the target period, and the air conditioning period during which the return air temperature measurement value is not within the range of ± 1 ° C of return air temperature setting value If it is within 15% of the machine operation time, “◎”.
[0019]
The air conditioner operation time period excluding the warm-up time period is the target period, and the time when the return air temperature measurement value is not within the range of ± 1 ° C of the return air temperature setting value is greater than 15% of the air conditioner operation time of the target period However, if any one of the following conditions (1), (2), and (3) is taken into consideration, it is determined to be “◯” if it is within 15%.
(1) When the supply air temperature is lower than the lower limit set value + 2 ° C. (almost sticks to the lower limit set value), the measured value is not considered to be higher than the set value + 1 ° C.
(2) When the command value of the chilled water valve opening is 90% or more (almost fully open), the measured value is not considered to be the set value of + 1 ° C. or more.
(3) When the command value of the chilled water valve opening is 10% or less (almost fully closed), the measured value is not considered to be the set value of -1 ° C. or less.
If it is neither “◎” nor “○”, it is “x”.
[0020]
[Judgment criteria for heating determined for return air humidity control]
The air conditioner operation time period excluding the warm-up time period is the target period, and the time when the return air humidity measurement value is not within the range of ± 5% RH of the return air humidity setting value is within 15% of the air conditioner operation time of the target period If it is, then “◎”.
[0021]
The air conditioner operation time period excluding the warm-up time period is the target period, and the time when the return air humidity measurement value is not within the range of ± 5% RH of the return air humidity setting value is from 15% of the air conditioner operation time of the target period Although it is large, if one of the following conditions (1) and (2) is taken into consideration, it will be “◯” if it is within 15%.
(1) When the humidifier is operating, the measured value is not less than -5% RH of the set value.
(2) When the humidifier is stopped, the measured value is not more than + 5% RH of the set value.
If it is neither “◎” nor “○”, it is “x”.
[0022]
[Evaluation of controllability by service technicians]
The service technician can evaluate the controllability on the screen of the user PC 9 for each control item of the desired control system. Hereinafter, the evaluation of controllability by this service technician will be described by taking as an example the case where the desired control system is an air conditioning system.
[0023]
The service engineer requests the controllability evaluation server 8 to output an air conditioning system diagnosis report from the screen of the user PC 9. Then, the controllability evaluation server 8 sends the diagnosis result summary file of the air conditioning system to the user PC 9. The diagnosis result summary file of the air conditioning system sent to the user PC 9 is a file that summarizes the determination results for each control item for each week for one week for all the air conditioning systems. Above, a diagnostic report 12 as shown in FIG. 3 is displayed. This diagnostic report 12 is displayed by commercially available spreadsheet software. In this example, all the air conditioning systems are three air conditioning systems “AC4”, “AC11”, and “AC13”.
[0024]
The diagnosis report 12 is provided with tabs T1, T2, and T3. When the tab T1 is clicked with a mouse, a diagnosis report of the air conditioning system “AC11” is displayed. When the tab T2 is clicked with the mouse, a diagnosis report of the air conditioning system “AC4” is displayed. When the tab T3 is clicked with the mouse, a diagnosis report of the air conditioning system “AC13” is displayed. FIG. 3 shows a state in which the diagnosis report 12 of the air conditioning system “AC4” is displayed.
[0025]
The diagnosis report 12 displays the determination results for the latest daily control items for the week in a row in the upper row 12-1. In addition, the determination result for each control item for the week is displayed as the comprehensive determination result in accordance with the determination result for each control item for each day of the week. Regarding the comprehensive determination result, when the controllability evaluation server 8 sends the diagnosis result summary file, the determination for each day is performed according to the determination criteria shown in FIG. Find in the same way as the result. In this case, the air conditioner operation time T is obtained by integrating the air conditioner operation time of each day in the week. The diagnostic report 12 displays the air conditioner operation time, the information on the diagnosis result required investigation time for each item, the ratio information for the investigation required time zone for each item in the lower stage 12-2, etc. Is done.
[0026]
[Service engineer response]
The service engineer looks at the diagnosis report 12 displayed on the screen of the user PC 9 and takes a response as shown in the flowchart of FIG.
In the diagnosis report 12, if all the determination results are “レ ポ ー ト”, a report indicating that there is no abnormality is created and the result is reported to the customer (step 401 → 402). In the diagnosis report 12, when “◯” is present in the determination result, it is checked in which part “◯” is present from the raw data of the day (step 401 → 403).
[0027]
If the check in step 403 shows that the return air temperature accuracy is greater than the set value + 1 ° C but the chilled water valve command value is “O” because the opening is 100%, the chilled water valve is properly opened 100% on site. A visual inspection is performed to determine whether or not there is (step 404). If there is no abnormality, it is confirmed that all other judgment items are “◎”, a report indicating that there is no abnormality is created, and the result is reported to the customer (step 402). If not 100% open, the valve is readjusted to open 100% (step 406). When readjustment is performed, the determination result from the controllability evaluation server 8 after readjustment is obtained (step 407), and the correspondence after step 401 is repeated.
[0028]
In the diagnosis report 12, if there is a “x” in the determination result, it is checked which part is strange from the raw data of the day (step 401 → 405). If the check in step 405 indicates that the return air temperature accuracy is set to a value equal to or higher than + 1 ° C and the command value of the chilled water valve is equal to or lower than the set value, the controller operation check and on-site The parameter is readjusted (step 406). And the determination result from the controllability evaluation server 8 after the readjustment is obtained (step 407), and the correspondence after step 401 is repeated.
[0029]
If it becomes “O” no matter how much readjustment is made, this indicates that the air conditioning system has a problem that cannot be solved by readjustment of the hand. For example, the capacity of the air conditioner is reduced and the piping is clogged. In such a case, it is possible to increase sales such as product sales and construction orders by reporting to the customer and proposing renewal.
[0030]
In the present embodiment, the raw data for the day to be checked when a determination result of “◯” or “×” is obtained can be displayed on the screen of the user PC 9 as follows. Although not described above, the controllability evaluation server 8 sends a system-specific diagnosis result file to the user PC 9 together with the diagnosis result summary file. The system-specific diagnosis result file contains detailed data (raw data) used to create the diagnosis result summary file, and is composed of a data sheet S1, a graph sheet S2, and an information sheet S3 as shown in FIG. ing.
[0031]
The data sheet S1, the graph sheet S2, and the information sheet S3 are provided for each system and for each day. The data sheet S1 contains periodic data. A graph for grasping the control state is posted on the graph sheet S2. Information such as the air conditioner operating time, temperature / humidity set value, and the time zone during which the temperature / humidity deviates from accuracy is posted on the information sheet S3.
[0032]
When the date displayed in the upper part 12-1 of the diagnostic report 12 is clicked with the mouse, a pull-down menu is displayed. This pull-down menu has items of data, graph, and information. When the “data” is clicked with the mouse, the data sheet S1 of the day is displayed. When the “graph” is clicked with the mouse, the graph sheet S2 of the day is displayed. When “Information” is selected, the information sheet S3 for the day is displayed.
[0033]
Further, in the above-described embodiment, the daily determination results for one week and the comprehensive determination results are displayed side by side in the horizontal direction. For example, as shown in FIG. And may be displayed alone. In the example shown in FIG. 6, when the graph is clicked with the mouse, detailed data in the graph is displayed.
[0034]
In the above-described embodiment, the determination result is divided into three stages “◎”, “◯”, and “×”. However, the determination result may not necessarily be three, and the number of determination results may be further increased. You may do it. Efficiently because the direction of the content to be inspected can be understood by including not only two stages but three or more stages, and including a judgment result indicating “◯”, that is, “control is good but requires inspection”. As a result, it is possible to find a location that is not a problem of control, such as a decrease in the capacity of the air conditioner, clogging of piping, etc., and propose a renewal to the customer. A unique effect that cannot be obtained from the determination result is obtained.
[0035]
In the above-described embodiment, the inspection item is defined for the control item and the determination result is obtained for the inspection item. However, the determination result may be obtained for the entire control item.
In the above-described embodiment, the air conditioning system has been described as an example. However, the present invention is not limited to the air conditioning system, and supports the evaluation of controllability by a service technician in the same manner for each control item of various control systems. It is possible.
Further, in the above-described embodiment, the case where there are a plurality of control systems has been described as an example. However, even if there is one control system, similarly, the evaluation of controllability by a service technician is supported for each control item. It is possible.
[0036]
【The invention's effect】
As is apparent from the above description, according to the present invention, data of various control items of a control system in a remote place is automatically collected and accumulated, and each control item of the control system is preliminarily stored based on the accumulated data. The controllability is determined according to the determined determination criteria, and a determination result divided into at least three stages is obtained for each control item of the control system, and this determination result is displayed on the screen of the user terminal, It is possible to evaluate controllability at any time based on data in actual operation without much man-hours. Thus, for example, the controllability is evaluated four times a year (every season), so that it is possible to drastically reduce the occurrence of complaints regarding the indoor environment from customers. In addition, since the controllability is determined according to a predetermined criterion for each control item, it is possible to eliminate the service technician's subjectivity as much as possible, and anyone can obtain the same evaluation.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a remote maintenance system including an embodiment of a controllability evaluation support system according to the present invention.
FIG. 2 is a diagram exemplifying determination criteria determined for control items of an air conditioning system.
FIG. 3 is a diagram illustrating a diagnostic report displayed on a screen of a user PC.
FIG. 4 is a flowchart for explaining the response of a service technician when viewing this diagnosis report.
FIG. 5 is a diagram illustrating a data sheet, a graph sheet, and an information sheet included in a system-specific diagnosis result file.
FIG. 6 is a diagram illustrating an example in which determination results for one day are displayed alone together with a graph.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Building, 2 ... Building management system (BA system), 3 ... Upper controller, 4 ... Lower controller, 5 ... Central monitoring unit (MCU), 6 ... Center, 7 ... Data collection server, 8 ... Controllability evaluation server, DESCRIPTION OF SYMBOLS 9 ... User terminal (user PC), 10 ... Data collection device, 11 ... Communication network, 12 ... Diagnostic report, S1 ... Data sheet, S2 ... Graph sheet, S3 ... Information sheet.

Claims (6)

A controllability evaluation support system that supports controllability evaluation of various control items of a control system in a remote place on the screen of a user terminal connected to the center,
Data collecting means for automatically collecting data of various control items of the control system;
Data storage means for storing data collected by the data collection means;
Based on the data stored by the data storage means, controllability is determined according to a predetermined criterion for each control item, and controllability is obtained to obtain a determination result divided into at least three stages for each control item. A determination means;
A controllability evaluation support system comprising: a determination result display unit that displays a determination result for each control item obtained by the controllability determination unit on a screen of the user terminal. A controllability evaluation support system that supports controllability evaluation of various control items of a plurality of control systems in a remote place on the screen of a user terminal connected to the center,
Data collecting means for automatically collecting data of various control items for each control system;
Data storage means for storing data collected by the data collection means;
Based on the data accumulated by the data accumulating means, controllability is determined according to a predetermined criterion for each control item for each of the control systems, and at least three steps for each control item for each of the control systems. Controllability determination means for obtaining a determination result divided into
A controllability evaluation support system comprising: determination result display means for displaying a determination result for each control item for each of the control systems obtained by the controllability determination means on the screen of the user terminal. In the controllability evaluation support system according to claim 1 or 2,
A controllability evaluation support system characterized in that one of the determination results divided into at least three stages includes a determination result indicating that control is good but inspection is required. In the controllability evaluation support system according to claim 1 or 2,
A controllability evaluation support system comprising: raw data display means for displaying raw data used for determination of controllability for each control item on the screen of the user terminal. In the controllability evaluation support system according to claim 1 or 2,
The controllability evaluation support system, wherein the controllability determination unit obtains the determination result based on data for a predetermined period. In the controllability evaluation support system according to claim 1 or 2,
The controllability evaluation support system, wherein the controllability determination unit obtains the determination result for each inspection item determined for the control item.

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