JPH07303288A - Building management device - Google Patents

Abstract

PURPOSE:To provide a building management device capable of saving the total energy consumption for a building. CONSTITUTION:In the building management device 101, a control information collection means 1 constantly collects control information of air conditioners 102a to 102n through a communication means 103. When the total energy consumption for the building is over energy consumption which is set in advance, each air conditioner 102a to 102n estimates energy consumption to be used after this based on control information by an energy consumption estimating means 2 so as to decide an optimum set value, and changes the control constant of the air conditioners 102a to 102n by a control constant changing means 112.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building management device for monitoring and controlling equipment in a building.

[0002]

2. Description of the Related Art FIG. 7 shows the structure of a conventional building management apparatus.
Will be described with reference to.

As shown in FIG.
Communication means 103 for communicating with air conditioners 102a to 102n installed on each floor of the building, priority setting means 104 for setting control priority, heat source control means 105, and energy consumption from power control means 106 are calculated. Values of the energy consumption detecting means 107 for detecting the total energy consumption of the building, the energy consumption setting means 108 for setting the upper limit of the energy consumption, the energy consumption detecting means 107 and the energy consumption setting means 109. Each of the air conditioners 102a to 10a through the communication means 103 according to the values of the energy consumption comparing means 110 for comparing the energy consumption comparing means 110 and the energy consumption comparing means 110 and the priority setting means 111.
The control constant changing unit 112 changes the control constant of 2n.

In the above structure, the total energy use amount of the building detected by the energy use amount detecting means 107 is compared with the upper limit value of the energy use amount set by the energy use amount setting means 109 to compare the total energy use amount of the building. When the amount becomes larger than the upper limit value of energy usage, an energy usage over signal is transmitted to the control constant changing means 112. Then, the control constant changing unit 112 receives the energy usage amount over signal and transmits the change of the control constant to the air conditioner set in the priority setting unit 111 through the communication unit 103.

[0005]

In such a conventional building management device, the control is performed based on the current amount of energy used, and the result when the control constant of the air conditioner is changed is not predicted. I was going there. Therefore, there is a problem in that comfort is significantly deteriorated due to excessive control, and conversely, energy consumption cannot be reduced because there are too few air conditioners to control.

The present invention solves the above-mentioned problems, and predicts the amount of energy used as a result of changing the control constant of the air conditioner and changes the control constant to reliably and optimally suppress the total energy of the building. A first object of the present invention is to provide a building management device that can do the same.

A second object of the present invention is to provide a building management apparatus capable of suppressing deterioration of comfort as much as possible by presetting priorities and changing control constants from less important air conditioners. It is in.

A third object is to calculate the comfort of the air-conditioned space of each air conditioner and change the control constants in order from the air conditioner that air-conditions the space with high comfort, thereby reducing the comfort as much as possible. It is to provide a building management device that can be suppressed.

[0009]

A first means for achieving the first object of the present invention is a communication means for communicating with an air conditioner installed on each floor of a building, and each of the air conditioners through the communication means. Control information collecting means for collecting control information of the air conditioner, and energy usage predicting means for predicting energy usage of each air conditioner to be consumed by each air conditioner in the future based on the control information collected by the control information collecting means. An energy consumption detecting means for calculating the energy consumption from the heat source controller and the power controller to detect the total energy consumption of the building; an energy consumption setting means for setting an upper limit of the energy consumption; Energy usage amount comparing means for comparing the values of the usage amount detecting means and the energy usage amount setting means, the energy usage amount comparing means and the energy usage amount predicting means. The value of the unit is obtained by a configuration in which the with a control constant changing means for changing the control constant of each air conditioner through the communication means.

A second means for achieving the second object is a construction in which the first means is provided with a priority storage means for storing the control priority of the air conditioner.

The third means for achieving the third object is configured to include a comfort calculating means for calculating the comfort of the space conditioned by each air conditioner.

[0012]

According to the present invention, by the configuration of the above-mentioned first means, the total energy of the building can be reliably ensured by predicting the energy usage amount as a result of changing the control constant of the air conditioner and changing the control constant. Moreover, it is possible to provide a building management device that can be optimally suppressed.

Further, by setting the priorities in advance by the configuration of the second means and changing the control constant from the less important air conditioner, comfort can be maintained and energy can be reduced.

The comfort of the air conditioner is controlled by the third means, and the comfort is maintained by changing the control constants in order from the air conditioner that air-conditions the space with high comfort. However, it can reduce energy consumption.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
This will be described with reference to FIG.

The same functional parts as those of the conventional example are designated by the same reference numerals and detailed description thereof will be omitted. As shown in the figure, in the building management apparatus 101, the control information collecting unit 1 always controls the operating states of the air conditioners 102a to 102n, the temperature measurement, the set temperature, the control parameters, etc. through the communication unit 103 such as a telephone line and a LAN. Information is collected and stored for each air conditioner. Then, the energy usage predicting means 2 predicts and calculates the future energy usage of each air conditioner from the collected control information by using a calculation algorithm such as neuro, and stores the result.

Further, the energy consumption comparing means 110 is the total energy consumption of the building detected by the energy consumption detecting means 107 and the energy consumption setting means 10.
The upper limit value of the energy usage amount set by 9 is compared, and when the total energy usage amount of the building becomes larger than the energy usage upper limit value, the control constant changing means 1
An energy usage over signal is sent to 12. Upon receiving the energy usage amount over signal, the control constant changing means 112 moves from step 1 to step 2, determines a new control constant, and sets the control constant to the energy usage predicting means 2.
(Step 3). The energy usage amount prediction unit 2 predicts the energy usage amount of each air conditioner in the case of a new control constant, and notifies the control constant changing unit 112 of it. The control constant changing means 112 receives the energy usage amount prediction result in step 4, determines whether the energy usage amount prediction result is smaller than the energy upper limit value in step 5,
If it is smaller, the control constant is transmitted to each air conditioner in step 6. If not smaller, step 2 is repeated until the energy usage amount prediction result becomes smaller than the energy upper limit value.

With the above configuration, the energy consumption amount predicting means 2 predicts in advance whether the energy consumption amount becomes smaller than the energy consumption amount upper limit value according to the new control constant, and then the control constant of each air conditioner is changed. The total energy consumption of the building can be surely suppressed.

As described above, according to the building management system of the first embodiment of the present invention, the control constant is changed by predicting the energy usage amount as a result of changing the control constant of the air conditioner.
It is possible to provide a building management device that can reliably suppress the total energy of a building.

Next, the second embodiment of the present invention will be described with reference to FIG.
-It demonstrates, referring FIG. The same parts as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted.

When the control constant changing means 112 receives the energy usage amount over signal, the control constant changing means 112 moves from step 1 to step 2 and selects from the priority order storing means 3 an air conditioner having a high priority to change the control constant and performs a new control. The constant is determined (step 3), and the control constant is notified to the energy consumption predicting means 2 (step 4). The energy usage amount prediction unit 2 predicts the energy usage amount of each air conditioner in the case of a new control constant, and notifies the control constant changing unit 112 of it. The control constant changing means 112 receives the energy usage amount prediction result in step 5, determines whether the energy usage amount prediction result is smaller than the energy upper limit value in step 6, and if it is smaller, the control constant is targeted for air conditioning in step 7. Send to the machine. If not smaller, step 2 is repeated until the energy usage amount prediction result becomes smaller than the energy upper limit value.

With the above configuration, since the air conditioners having the highest priority are sequentially operated, the total energy consumption of the building can be surely ensured.
Moreover, by changing the control constant from a less important air conditioner, it is possible to suppress deterioration of comfort as much as possible.

As described above, according to the building management system of the second embodiment of the present invention, the priorities are set in advance and the control constants are changed from the less important air conditioners, whereby the comfort is deteriorated as much as possible. It is possible to provide a building management device that can suppress the above.

Next, the third embodiment of the present invention will be described with reference to FIG.
-It demonstrates, referring FIG. The comfort calculating means 4 using the PMV algorithm or the like always calculates and stores the comfort of each air conditioner using the control information collected by the control information collecting means 1.

When the control constant changing means 112 receives the energy usage amount over signal, the control constant changing means 112 moves from step 1 to step 2, selects an air conditioner with high comfort from the comfort calculating means 4 and determines a new control constant ( In step 3), the control constant is notified to the energy consumption predicting means 2 (step 4). The energy usage amount prediction unit 2 predicts the energy usage amount of each air conditioner in the case of a new control constant, and notifies the control constant changing unit 112 of it. Control constant changing means 11
2 receives the energy usage amount prediction result in step 5, determines in step 6 whether the energy usage amount prediction result is smaller than the energy upper limit value, and if smaller, transmits the control constant to the target air conditioner in step 7. . If not smaller, step 2 is repeated until the energy usage amount prediction result becomes smaller than the energy upper limit value.

With the above-described structure, since the air conditioners having the highest comfort are sequentially operated, the total energy consumption of the building can be reliably achieved and the deterioration of the comfort can be suppressed as much as possible.

As described above, according to the building management system of the third embodiment of the present invention, the priority order is set in advance, and the control constant is changed from the air-conditioner with high comfort, so that the comfort as much as possible is obtained. A building management device capable of suppressing deterioration can be provided.

The calculation algorithm used by the energy consumption predicting means may be other than neuro.

The operation algorithm used by the comfort operation means may be other than PMV.

[0030]

As is apparent from the above embodiments, according to the present invention, the energy consumption amount resulting from changing the control constant of the air conditioner is predicted in advance and the control constant is changed to ensure the total energy of the building. In addition, it is possible to provide a building management device that has the effect of being able to suppress it optimally.

In addition, by setting the priorities in advance by the configuration of the second means and changing the control constants from less important air conditioners, it is possible to suppress deterioration of comfort as much as possible. A management device can be provided.

Further, by calculating the comfort of the air-conditioned space by each air conditioner and changing the control constants in order from the air conditioner that air-conditions the space with high comfort, the effect of suppressing deterioration of comfort as much as possible It is possible to provide a building management device with a certain property.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a building management apparatus according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the control constant changing means.

FIG. 3 is a block diagram showing the configuration of a building management device according to a second embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of the control constant changing means.

FIG. 5 is a block diagram showing a configuration of a building management device according to a third embodiment of the present invention.

FIG. 6 is a flowchart showing the operation of the control constant changing means.

FIG. 7 is a block diagram showing a configuration of a conventional building management device.

[Explanation of symbols]

 1 Control Information Collecting Means 2 Energy Usage Means Prediction 3 Priority Storage Means 4 Comfort Computing Means 101 Building Management Equipment 102a Air Conditioners 102b Air Conditioners 102n Air Conditioners 103 Communication Means 105 Heat Source Control Means 106 Power Control Means 107 Energy Usage Detection Means 109 Energy usage amount setting means 110 Energy usage amount comparing means 112 Control constant changing means

Claims (3)

[Claims] 1. A communication means for communicating with an air conditioner installed on each floor of a building, a control information collecting means for collecting control information of each air conditioner through the communication means, and a control collected by the control information collecting means. Based on the information, the energy consumption predicting means that predicts the energy consumption of each air conditioner that each air conditioner will consume in the future, and the energy consumption from the energy consumption heat source control means and the power control means Energy usage amount detecting means for detecting total energy usage amount, energy usage amount setting means for setting an upper limit of energy usage amount, and energy usage amount for comparing values of the energy usage amount detecting means and the energy usage amount setting means Each air conditioner through the communication means based on the values of the comparison means, the energy usage comparison means and the energy usage prediction means. Building management device equipped with a control constant changing means for changing the control constant of. 2. The building management apparatus according to claim 1, further comprising a priority order storage unit that stores the control priority order of the air conditioners. 3. The building management device according to claim 1, further comprising comfort calculating means for calculating comfort of a space in which each air conditioner is air-conditioned.