JP2014106724A - Air-conditioning diagnostic device and energy consumption management device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform diagnosis of air-conditioning facilities or computation of an energy consumption excluding inspection data even during an inspection operation.SOLUTION: An air-conditioning diagnostic device includes measurement data definition means used for diagnosis associated with air conditioning facilities, measurement data gathering means of gathering data measured by respective measuring instruments in the facilities, operation information setting means of setting a facility group associated with inspection, and inspection operation detection means of automatically determining whether the measurement data is in an inspection state from temporal behavior of the data. When the facility group that the inspection data detected by the inspection operation detection means belongs to is set in a non-inspection state, a warning is made with a facility group name thereof.

Description

  The present invention relates to a diagnosis device for an air-conditioning state based on data measured by each measuring device in an air-conditioning facility, and a management device that tabulates and displays energy usage related to the air-conditioning facility.

  2. Description of the Related Art Conventionally, systems for managing equipment of air conditioning (hereinafter “air conditioning”) devices have been used. In particular, in recent years, energy usage management devices such as BEMS (Building and Energy Management System) measure and manage the measurement data and energy usage at facilities in order to perform energy diagnosis and energy conservation measures for facilities such as commercial buildings. doing. At this time, the energy usage of the entire facility is obtained by measuring and totaling the energy usage of various loads installed in each area in the facility.

  In the device management system disclosed in Patent Document 1, an invention for detecting an abnormality occurring in a facility device and managing an alarm to that effect has been proposed, depending on whether the device is under maintenance work or not. This is a technique for restricting the alarm from being issued, but relies on maintenance information indicating whether or not the apparatus is under maintenance by a manual input unit.

JP 2008-217229 A

  In the building operation stage, the equipment may be in a state different from normal facility operation due to trial operation adjustment and inspection work. For example, during the inspection, in order to confirm that the device operates properly, a calibration operation command is given or a control parameter for controlling the device is tuned. As a result, if the measurement data of this work time zone is used, incorrect diagnosis and energy aggregation / display will occur. In this case, the equipment administrator can enter the work information for the inspection to exclude such data, but if it is based on such an artificial act, the maintenance information is input appropriately. If not, there is a problem of data exclusion during the inspection period.

  This invention sets the working time and the equipment system (group) during the inspection of the equipment, and the measurement data belonging to the measurement data (hereinafter referred to as “inspection”) from the energy management target to the equipment under inspection. When it is determined that the inspection data has been automatically analyzed and the inspection work has been performed, the system operator is warned that the inspection work information needs to be entered. The purpose is that.

The first invention is an invention of an air conditioning diagnostic device,
Measurement data definition means used for diagnosis related to air conditioning equipment,
Measurement data collection means for collecting data measured by each measurement device in the facility;
Work information setting means for setting equipment groups for inspection,
An air-conditioning diagnostic apparatus comprising an inspection work detection means that automatically determines whether or not measurement data is in an inspection state from the behavior over time of the data,
When the equipment group to which the inspection data detected by the inspection work detection means belongs is set to a non-inspection state, the air conditioning diagnosis apparatus is characterized by giving a warning with the equipment group name.

The second invention is an energy usage management device,
Measurement data definition means used for energy usage of each energy type,
Measurement data collection means for collecting energy data including energy consumption measured by each measurement device in the facility;
Work information setting means for setting equipment groups for inspection,
The inspection work detection means for automatically judging whether or not the measurement data is in the inspection state from the time-dependent behavior of the data, and the energy usage amount is aggregated from the energy data collected by the measurement data collection means or Aggregation / display setting means for setting energy data to be displayed;
Energy data extracting means for extracting each energy data set as a target of aggregation or display by the aggregation / display setting means from the energy data collected by the measurement data collecting means,
Exclude the corresponding inspection data from each corresponding energy usage based on the specific segment match of the address of the measurement data in the period set by the point table stored in the measurement data definition means and the work information setting means And an energy usage totaling means for counting each energy usage,
Energy usage display means for generating / outputting an energy usage display screen based on the energy usage aggregated by the energy usage aggregation means for what is set as the aggregation target by the aggregation / display setting means; In the energy usage management device with
When the equipment group to which the inspection data detected by the inspection work detection unit belongs is set to a non-inspection state, the energy usage management device is configured to warn with the equipment group name.

  According to the present invention, since it is possible to avoid using inspection data for the diagnosis management work of fine driving, it is possible to further calculate and display energy usage without causing erroneous diagnosis of facility air conditioning. . That is, since monitoring errors and display errors can be suppressed, the reliability of air-conditioning diagnosis and energy management can be improved.

It is a schematic diagram of an air-conditioning heat source system concerning an embodiment of this invention. It is a block diagram which shows the structure of the air-conditioning diagnostic apparatus (energy usage management apparatus) in embodiment of this invention. It is a figure (3B) which shows the point table of the measurement data defined with the figure (3A) which shows the work information input in embodiment of this invention. The block diagram and screen example which show operation of the air-conditioning diagnostic device concerning the example of 1st invention It is a flowchart which shows operation | movement of the energy usage-amount management apparatus which concerns on the Example of 2nd invention. It is a form figure of the result of energy usage management in the Example of the 2nd invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
First, the air conditioning heat source system will be described with reference to FIG. Here, the control device 1, an air conditioner 2 such as an air handling unit or a fan coil unit (hereinafter subscript -n etc. is omitted), a refrigerator 3, a primary pump 4 as an auxiliary machine of the refrigerator 3, and hot and cold water Secondary pump 5 to be circulated, header 6, 7, 8, water supply path 9, return water path 10, communication pipe 11 that bypasses between header 6 and header 7, thermometer 12 that detects the inlet temperature ti of the refrigerator, refrigeration A thermometer 13 for detecting the outlet temperature t0 of the machine, a thermometer 14 for detecting the temperature ta of the cooling water or the air-cooled air of the refrigerator, a thermometer 15 for detecting the water supply temperature ts to the air conditioner, and the return water from the air conditioner A thermometer 16 for detecting the temperature tr, a thermometer 17 for detecting the mixed temperature tm of the header 6, a differential pressure gauge 18 for detecting the lift ΔH of the secondary pumps 5-1 and 5-2, and between the header 7 and the header 8 Control valve 19 provided, cold / hot water system Valves 20 and 21, flow meter 22 and 23 for detecting the cold water flow rate and the cooling water flow rate of the refrigerator, are those composed of such flow meter 24 for detecting the cold water flow rate sent to the air conditioner side.

The control device 1 includes an arithmetic device such as a CPU that controls each part of the device 1, a recording device such as a memory and a hard disk, a screen display device such as a liquid crystal display, an information input device such as a touch panel, a button, a keyboard, and a mouse, and an external device. It consists of an output device to be controlled. Such a control device 1 is electrically connected to the air conditioner 2, the refrigerator 3, the primary pump 4, the secondary pump 5, the thermometers 12 to 17, the differential pressure gauge 18, the control valve 19, and the cold / hot water control valves 20 and 21. The air conditioning heat source system as a whole is controlled by transmitting and receiving electrical signals to and from these components. In such a configuration, it has been proposed to include a heat source device energy calculation unit that calculates the energy consumption amount of the heat source device and a pump energy calculation unit that calculates the energy consumption amount of the circulation pump (Japanese Patent Application Laid-Open No. 2003-262384). Such). It is also known that the total energy consumption of the air conditioning heat source system is obtained as the sum of the energy consumption of the refrigerator and the energy consumption of the pump based on various measurement data.
For example, the energy calculation unit of the heat source equipment calculates the current energy consumption Pc hiller of the freezer from the current values ti, ta, ts of the temperatures measured by the thermometers 12, 14, 15 and the flow rates Gc h, G co. calculate. On the other hand, the pump energy calculation unit calculates the current energy consumption Pp of the secondary pump from the efficiency η of the secondary pump determined by the characteristics of the pump, the head ΔH measured by the differential pressure gauge 18, and the rotational speed n of the secondary pump. ump is calculated.

In addition to the functions of the control device 1 as described above, the present invention is provided with a configuration of an air conditioning diagnostic device. However, in addition to being configured integrally with the control device 1, a distributed form such as a client server or other cloud computing may be used.
Now, FIG. 2 is a block diagram comprehensively showing the configuration of the air-conditioning diagnosis apparatus (and applied energy usage management apparatus) 100 according to Embodiment 1 of the present invention.
First, the air conditioning diagnosis apparatus 100 includes a measurement data definition unit 101, a measurement data collection unit 102, a tabulation / display setting unit 103, an inspection data notification unit 104, an operation information setting unit 105, an energy data extraction unit 106, and an inspection operation detection unit 107. , Energy usage totaling means 108 and energy usage amount display means 109.

  In the facility managed by the air-conditioning diagnostic apparatus 100, various measuring devices (such as a flow meter, a pressure meter, a watt-hour meter, and a gas meter) that measure data related to the state of various air-conditioning devices and energy consumption are installed. The measurement data definition means 101 defines (creates and stores) such measurement data in advance. The point table (shown in FIG. 3) created and stored by the measurement data defining unit 101 is referred to by the inspection data notifying unit 104, the inspection operation detecting unit 107, the energy usage totaling unit 108, and the like. In addition, you may share this point table with the said table of the control apparatus 1 main body.

  The measurement data collection unit 102 acquires measurement data from each measurement device installed in the facility on a regular basis (for example, hour, minute, day, etc.), performs various calculations as necessary, and stores them. It is. The totaling / display setting unit 103 sets energy data for totaling or displaying the energy usage from each energy data collected by the measurement data collecting unit 102. Information indicating each energy data set to be aggregated or displayed by the aggregation / display setting unit 103 is supplied to the energy data extracting unit 106 together with information indicating whether the data is to be aggregated or displayed.

  The inspection data notification unit 104 is a functional unit that determines whether the measurement data used for the air conditioning diagnosis is normal. In particular, it also determines whether the data by the aggregation / display setting means 103 is normal. The inspection data notifying unit 104 refers to the point table stored in the measurement data defining unit 101, and the data included in each energy data set to be aggregated or displayed by the aggregation / display setting unit 103 is inspected. Notify whether it is in the middle or not.

Now, the work information setting means 105 preliminarily sets an equipment group to be inspected based on an equipment operation plan by designating a scheduled work date and work time (from start to finish). The equipment group is designated by the equipment group ID (address) and the target equipment, as shown in FIG. 3A.
In this example, equipment group ID = 0024 indicates a secondary pump (system) and is a system for supplying cold / hot water to a heat exchanger such as an air conditioner provided in the air-conditioned space as described above. In FIG. 3B, a point table is created and stored in advance by the measurement data defining means 101.

The energy data extraction means 106 extracts each energy data set as the aggregation target or display target by the aggregation / display setting means 103 from the measurement data collection means 102 on a regular basis (for example, every day, month or year). It is.

  The inspection operation detection unit 107 is a functional unit that detects whether or not the measurement data is inspection data in the air conditioning diagnosis apparatus. When the energy usage amount included in the energy data is totaled or displayed, the behavior of the measurement data to be used is monitored. If there is so-called unusual data, a predetermined warning is issued. The determination method will be described later.

The energy usage totaling means 108 counts the energy usage included in each energy data when each energy data is set as a totaling target by the totaling / display setting means 103. The energy data for which the energy usage is totaled by the energy usage totaling means 108 is supplied to the energy usage display means 109.
The energy usage amount display means 109 excludes the data being inspected by the inspection work detection means 107 and displays the energy usage amount display screen when each energy data is set as a display target by the aggregation / display setting means 103. The data is generated, displayed on a monitor, printed on a printer, transmitted via a communication line, and output.

[Example 1]
In the air-conditioning diagnosis apparatus according to the first aspect of the present invention, an example is shown in which a warning is executed to an operator when measurement data that can be determined as inspection data is not defined to that effect.
A point table as shown in FIG. 3B is created and stored in advance by the measurement data defining means 101. The point table is composed of (physical) point address, (logical) name, (data) type, etc. for each measurement point. Furthermore, an “exclusion flag” attribute can be given to the points notified by the inspection data notification means 104.

The operation of the air-conditioning diagnosis apparatus according to this embodiment will be described with reference to the block diagram of FIG. 4A.
The measurement data is acquired after AD conversion by the measurement data collecting means 102, and the value is stored over time on an appropriate storage medium. Next, the inspection work detection means 107 monitors the behavior of the stored measurement data. Observe past data especially to see behavior over time.
At that time, if the equipment group indicated by the specific segment of the point address is defined as inspection data by the work setting means 105, or if the exclusion flag is already set in the point table, the following determination processing is executed. do not do.

Here, the judgment logic for determining the behavior of the measurement data when it is considered as inspection data is as follows:
(1) In the case of checking the air conditioner valve, manually giving an opening signal and checking that the valve operates according to the signal, the valve opening or related flow rate data
Full closed → 25% → 50% → 75% → fully open → 75% → 50% → 25% → fully closed behavior is applicable. If the target valve repeats the operation from fully closed to fully open and fully open to fully closed within the time when the threshold is added to the time that is twice as long as the valve takes from fully closed to fully open or from fully open to fully closed Detect this.
(2) When checking the temperature indicating controller, manually enter the resistance resistance (0, 50, 100%) of the resistance temperature detector, and indicate that the temperature measurement data indicates an instruction corresponding to the simulated resistance. The work to be checked applies. If the target temperature data indicates the lower limit, intermediate value, and upper limit of the full scale within a certain time, this is detected.
With respect to other various air conditioning data, the judgment logic is appropriately determined from the knowledge of equipment diagnosis. For this reason, it is assumed that the inspection work detection means 107 is accompanied by a threshold for use in a predetermined determination.

Now, for the measurement data determined as inspection data by the inspection work detection means 107, the equipment group indicated by the point address of the measurement data is taken out, and a warning message is output on the screen as appropriate for the equipment (FIG. 4B). ).
Here, as an example
The case where “001.0024.04 FCU-1 cold / hot water flow rate” corresponds to the behavior judgment of the judgment logic (1) is shown. This corresponds to the case where the equipment group of “0024 secondary pump” is not set to being checked by the work information setting means 105 on the day (July 2) (non-check state).
The message shown in FIG. 4B prompts the operator to confirm on the screen and reconfirm whether there is an error in the setting of the work information setting unit 105.
The above is an example of the air conditioning diagnosis apparatus.

[Example 2]
Next, the operation of the energy usage management device 100 configured as the second invention will be described with reference to the flowchart of FIG.
In the operation of the applied energy usage management apparatus 100, as in the first embodiment, the measurement data collection unit 102 sequentially collects and stores measurement data related to energy from each measurement device installed in the facility. (Step ST51).

  Next, the totaling / display setting unit 103 sets energy data for totaling or displaying the energy usage from the energy data collected by the measurement data collecting unit 102 (step ST52). Information indicating each energy data set to be aggregated or displayed by the aggregation / display setting unit 103 is supplied to the energy data extracting unit 106 together with information indicating whether the data is to be aggregated or displayed.

  Here, the inspection work detection unit 107 determines whether the setting by the tabulation / display setting unit 103 is appropriate (step ST53). In other words, in this embodiment, the inspection work detection means 107 is stored in the point table stored in the measurement data definition means 101, and in particular, for each measurement data set as an aggregation target or display target by the aggregation / display setting means 103. The legitimacy is judged by judging whether it is inspection data.

  In this step ST53, when the inspection work detecting means 107 determines that the data being inspected exists in the measurement data included in each energy data set as the target of aggregation or display, the data is totalized or displayed. It is the same as in the first embodiment (step ST54) that the user is notified of the inability to do so by an alarm or a display. Thereafter, the process returns to step ST52.

  On the other hand, the work information setting means 105 may input during runtime or read a pre-configured file as shown in this flow. As a result, the work information as shown in FIG. It is assumed that it is set (step ST55). Thus, for example, when the secondary pump system is being inspected, the value of the second segment of the point address “0024” is the system of the secondary pump system. As a result, the predetermined energy data of the air-conditioned space also becomes inspection data.

  Next, the energy data extracting unit 106 periodically extracts each energy data set as a totaling target or a display target by the totaling / display setting unit 103 from the measurement data collecting unit 102 (step ST56).

  Next, the inspection data notifying unit 104 uses the measurement data related to the work information set by the work information setting unit 105 and the various types of energy using the measurement data included in each energy data stored in the measurement data defining unit 101. Data is found and notified (step ST57).

  Next, it is determined by the aggregation / display setting means 103 whether each energy data is in an inspection state (step ST58). In this step ST58, when it is determined by the notification from the inspection data notification means 104 that the aggregation / display setting means 103 should not correspond to the aggregation object because of the inspection data, the sequence skips step ST59 to step 60. move on.

  On the other hand, if it is determined in step ST58 that the energy / data setting means 103 determines that each energy data is suitable for the object of aggregation, the energy usage amount aggregation means 108 then aggregates the energy usage amount (step ST59). The energy data for which the energy usage is totaled by the energy usage totaling means 108 is supplied to the energy usage display means 109.

  Finally, the energy usage amount display means 109 generates an energy usage amount display screen, displays it on a monitor, prints it on a printer, transmits it via a communication line, and outputs it (step ST60).

Here, the energy usage amount display screen may be output in a table format as shown in FIG. 6, for example, or may be output as a trend graph. In FIG. 6, as the energy usage display screen, the power consumption [MWh] for each energy usage related to the power consumption and the gas flow [km for each energy usage related to a plurality of gas flow rates are displayed on a daily basis. ³ ] also shows the energy use result summary table displayed in a list for each month. In this figure, the July 1 minute is shaded to indicate what is being inspected. In addition, special processing such as shading and broken lines may be performed on the trend screen such as power demand.

  As described above, it is possible to exclude the data being inspected, automatically calculate the desired energy usage, and calculate and display each energy usage, thereby suppressing counting errors and display errors. Can be managed efficiently.

  In addition, when the user sets energy data for summing up or displaying energy usage, if it is determined that inspection data is mixed with measurement data different from work information based on various judgment criteria, tabulation and display are performed. Since it is configured to notify that it cannot be performed, the reliability and processing speed of energy management can be improved for the user.

DESCRIPTION OF SYMBOLS 100 Air-conditioning diagnostic apparatus and energy usage management apparatus 101 Measurement data definition means 102 Measurement data collection means 103 Totaling / display setting means 104 Inspection data notification means 105 Inspection work detection means 106 Energy data extraction means 107 Inspection work detection means 108 Energy consumption Aggregation means 109 Energy usage display means

Claims (2)

Measurement data definition means used for diagnosis related to air conditioning equipment,
Measurement data collection means for collecting data measured by each measurement device in the facility;
Work information setting means for setting equipment groups for inspection,
An air-conditioning diagnostic apparatus comprising inspection work detection means for judging whether or not the measurement data is in an inspection state from the temporal behavior of the data,
An air-conditioning diagnostic apparatus that warns with the name of the equipment group when the equipment group to which the inspection data detected by the inspection work detection means belongs is set to a non-inspection state. Measurement data definition means used for energy usage of each energy type,
Measurement data collection means for collecting energy data including energy consumption measured by each measurement device in the facility;
Work information setting means for setting equipment groups for inspection,
An inspection operation detection means for judging whether or not the measurement data is in an inspection state from the temporal behavior of the data, and an energy for totaling or displaying the energy usage from each energy data collected by the measurement data collection means Aggregation / display setting means for setting data,
Energy data extracting means for extracting each energy data set as a target of aggregation or display by the aggregation / display setting means from the energy data collected by the measurement data collecting means,
Exclude the corresponding inspection data from each corresponding energy usage based on the specific segment match of the address of the measurement data in the period set by the point table stored in the measurement data definition means and the work information setting means And an energy usage totaling means for counting each energy usage,
Energy usage display means for generating / outputting an energy usage display screen based on the energy usage aggregated by the energy usage aggregation means for what is set as the aggregation target by the aggregation / display setting means; In the energy usage management device with
An energy usage management device that warns with the name of the equipment group when the equipment group to which the inspection data detected by the inspection work detection means belongs is set to a non-inspection state.

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