JP2005061801A - Management system for air conditioning apparatus and its computer program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent excessive air conditioning and reduce the consumption of energy in association therewith by managing a room temperature in a building. <P>SOLUTION: This management system 1 comprises temperature gauges 5 connected to a manager 2 via a programmable logic controller 4 through a network 3. The temperature gauge 5 for measuring room temperature is provided in each of sections in the building B to be managed by an air conditioning apparatus M. A computer body 2a of the manager 2 counts the duration of an inadequate condition, as an irregular time, where excessive cooling/heating operation is found from the room temperature compared with a reference value during cooling/heating operation of the air conditioning equipment M. Thus, the operated condition of the air conditioning apparatus M can be evaluated by using the length of the irregular time and necessary control can be urged for improvement, therefore saving wasteful energy consumption. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an air conditioner management system for evaluating the suitability of room temperature adjustment of an air conditioner, particularly in building energy management.

Conventionally, a sensor for detecting temperature, humidity, etc. in a dwelling unit, an output signal of this sensor, a fuzzy inference device that outputs a signal for controlling a plurality of air conditioners based on a preset fuzzy rule, There is an automatic air conditioning system including an equipment control unit that receives an output signal of the fuzzy inference device and controls the air conditioning equipment (see Patent Document 1).
Japanese Patent Laid-Open No. 5-126382

In the above conventional automatic air conditioning system, room temperature adjustment at the time of monitoring can be performed automatically, but for building owners who do not have specialized knowledge, air conditioning operation for each room and system is appropriate from the viewpoint of energy saving. Therefore, it is difficult to determine whether or not the air conditioner is excessive, and energy may be wasted due to excessive air conditioning operation of the air conditioner.
Therefore, an object of the present invention is to enable a person who does not have specialized knowledge to easily manage room temperature in a building, prevent excessive air conditioning, and reduce energy consumption associated therewith.

  In order to solve the above problems, in the present invention, the temperature of the room where the air conditioner is installed is measured by the measuring means 5, and the average value of the room temperature is excessively adjusted with respect to the preset reference temperature. The accumulated time for each month is counted as a violation time, and it is determined by the determining means 2a whether the air-conditioning operation of the air conditioner is appropriate based on the allowable reference time, and the determination result is displayed on the display means 2c. In order to improve the excessive air-conditioning operation of air-conditioning equipment, energy consumption is reduced.

  In the present invention, it is possible for a building owner or the like who does not have specialized knowledge to easily grasp whether appropriate air conditioning is performed for each room or system, so that excessive air conditioning operation of the air conditioner can be prevented. Thus, energy saving can be realized.

  An embodiment of the present invention will be described. FIG. 1 is a schematic configuration diagram of a management system for air-conditioning equipment according to the present invention, FIG. 2 is a flowchart regarding whether or not the outside air introduction is appropriate for the management system, FIG. 3 is a screen configuration diagram of a monitor regarding violation time of room temperature adjustment, and FIG. It is another screen block diagram of the monitor regarding the violation time of room temperature adjustment.

  In FIG. 1, a management system 1 comprehensively manages energy supply and demand of a plurality of equipment for lighting, air conditioning, hot water supply, and the like in a building B. As a part of energy management, the management system 1 acquires data on the room temperature for the air conditioner M of the equipment and determines whether the operating state of the air conditioner M is appropriate. The air conditioning equipment M manages the room temperature in order to prevent waste of energy for excessive air conditioning operation. The management system 1 is configured by connecting each instrument to a management device 2 that comprehensively manages the air conditioning equipment M together with other equipments through a network 3 via a programmable logic controller (hereinafter referred to as PLC) 4. Is done.

  A thermometer 5 that measures the room temperature is provided for each section managed by the air conditioner M in the building B. These thermometers 5 constitute measurement means and send measurement data to the management apparatus 2 through the network 3.

  The management device 2 is configured by a computer system including a computer main body 2a, a keyboard 2b, and a monitor 2c. The computer main body 2a constitutes a determination means, and includes a facility program including the air conditioner M, a network 3, a PLC 4, a thermometer 5, a keyboard 2b and a monitor 2c, and a computer program for managing and controlling management data. The computer main body 2a contains a storage means in which a database for storing management data is constructed. The monitor 2c constitutes display means for displaying various management data and information.

  The computer main body 2a calculates other management data based on the measurement data acquired by the thermometer 5, or graphs the management data. In particular, the computer main body 2a determines whether the air conditioner M is suitable for the room temperature. In this determination, an average value per hour is calculated from the indoor temperature by the thermometer 5, and this is compared with a preset reference value, and the time exceeding the reference value is counted and integrated per month. It is determined whether the cooling / heating operation of the air conditioner is appropriate from the length of the allowable reference time set in advance. The measurement data and the determination result are displayed on the monitor 2c as Table 6 as shown in FIG. These data are displayed on the monitor 2c as a graph 8 as shown in FIG.

  The monitor 2c displays a screen as shown in FIGS. 3 and 4 by starting a computer program of the computer main body 2a and performing necessary operations. That is, in the screen shown in FIG. 3, for each room in which the air conditioner M is installed, the air conditioner M is in the heating / cooling / intermediate mode, the average indoor temperature for the most recent hour, the reference value of the room temperature, and the violation. Table 6 is displayed that summarizes the determination results of “appropriate” and “inappropriate” by time, year-round integrated value of violation time, and color coding. On the screen shown in FIG. 4, a bar graph 8 summarizing the violation hours of the year is displayed for each section where the air conditioner M is installed. Each screen also displays various button icons 7 that can be operated by a push button with a pointer such as a pointing device. By operating a predetermined button icon 7 on the screen displaying Table 6, the screen can be switched to the graph 8 screen. In addition, the “determination” button icon 7 determines whether the room temperature violation time is appropriate.

  In this air conditioning equipment management system 1, as shown in FIG. 2, the room temperature of the section of the building B where the air conditioning equipment M is installed is measured with a thermometer 5 (step S 1). The operation mode type of the period is input to the management device 2 through the network 3 together with the measurement data, the average room temperature per hour is calculated (step S2), and the suitability of the room temperature is determined based on the required operation (step S2). S3). This determination is compared with a threshold value (reference value) for each of the air conditioning / intermediate operation modes. For example, the threshold is set to 27 ° C. in the cooling operation mode and 18 ° C. in the heating operation mode. In the heating operation mode (step S4), when the room average temperature is lower than the threshold, it is determined as “appropriate”, and when it is equal to or higher than the threshold, it is determined as “inappropriate” (step S5). The “improper” time is accumulated as the violation time (step S6). In the cooling operation mode (step S4), when the indoor average temperature is higher than the threshold, it is determined as “appropriate”, and when it is equal to or lower than the threshold, it is determined as “inappropriate” (step S5). The “improper” time is accumulated as the violation time (step S6). In the interim operation mode (step S4), energy is not consumed greatly due to the heat treatment for adjusting the room temperature, and the room temperature relative to the reference value is not a problem from the viewpoint of energy consumption, and is always determined to be “appropriate”. (Step S4). The computer main body 2a displays these data in Table 6 and summarizes them in a graph 8 (step S7), and displays them on the monitor 2c as necessary. Therefore, it is possible to take measures such as appropriately adjusting the room temperature adjustment of the air conditioner M based on this determination.

  In addition, the management apparatus 2 of the energy management system 1 may be used as a computer of a central monitoring apparatus that monitors each equipment device M in the building B, or an independent computer may be separately installed, You may make it cooperate with a central monitoring apparatus by a communication means.

  The present invention is effective for evaluating the suitability of room temperature adjustment of an air conditioner installed in a building such as a building.

It is a schematic block diagram of the management system of the air-conditioning equipment which concerns on this invention. It is a flowchart of the management system regarding the carbon dioxide concentration in a room. It is a screen block diagram of the display apparatus regarding room temperature. It is the other screen block diagram of the display apparatus regarding room temperature.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Management system 2 Management apparatus 2a Computer main body (determination means)
2b Keyboard 2c Monitor (display means)
3 Network 5 Thermometer (Measuring means)
M air conditioning equipment

Claims (2)

Measuring means for measuring the temperature in the room where the air conditioner is installed;
The average time of the room temperature by this measuring means is a temperature that is excessively adjusted with respect to a preset reference temperature, and the accumulated time per month is counted as a violation time. A determination means for determining whether the air conditioning operation of the device is appropriate;
Display means for displaying the determination result,
A management system for an air conditioner that promotes improvement of excessive air conditioning operation of the air conditioner to reduce energy consumption. Let the measuring means measure the temperature in the room where the air-conditioning equipment is installed,
The average time of the room temperature by this measuring means is a temperature that is excessively adjusted with respect to a preset reference temperature, and the accumulated time per month is counted as a violation time. Judgment is made by the judging means to determine whether the air conditioning operation of the equipment is appropriate,
Displaying the determination result by a display means;
A computer program for a management system of an air conditioner that promotes improvement of excessive air conditioning operation of the air conditioner and reduces energy consumption.

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