Performance deterioration evaluation method for facility device, performance deterioration evaluation system for facility device, and information collecting apparatus for facility device

The present invention relates to a method for evaluating performance deterioration of equipment, an evaluation system for evaluating performance deterioration of equipment, and an information collecting device for equipment.

For equipment, performance deterioration may be evaluated to determine the maintenance time and to verify the capacity after installation. In the evaluation of the performance deterioration of such equipment, in order to make a more accurate evaluation, it is desirable that the performance deterioration is evaluated not only by the elapsed time after installation but by the data showing the actual capacity. On the other hand, a remote monitoring service that acquires information from equipment and remotely monitors equipment failures has been used in recent years (see Patent Document 1). For example, in the remote monitoring service of an air conditioner, various temperature information and information such as power consumption are acquired from the air conditioner. This information is periodically sent to a remote monitoring device, stored, and used for failure monitoring and the like. Therefore, it is possible to evaluate the performance deterioration using this information.<patcit num="1"><text>Japanese Patent Application Laid-Open No. 2004-013674</text></patcit>

<p> However, when the information acquired by the remote monitoring service as described above is used, a large amount of memory is required because the amount of information is large. Therefore, it is not a monitoring device that can use a relatively large device, but a device with a limited memory capacity, such as a device placed in a managed property, obtains information on the above equipment. It is difficult to accumulate.</p><p> An object of the present invention is to provide a performance deterioration evaluation method for equipment, a performance deterioration evaluation system for equipment, and an information collection device for equipment that can suppress the amount of information accumulated in the evaluation of performance deterioration of equipment. There is.</p>

<p> The equipment performance deterioration evaluation method according to claim 1 includes a first step, a second step, and a third step. In the first step, equipment information including the load condition related to the load on the equipment and the energy consumption of the equipment under the load condition is acquired. In the second step, only the specific information whose load condition satisfies the specific condition is accumulated among the equipment information. In the third step, the performance deterioration is evaluated by comparing the energy consumption of a plurality of stored specific information.</p><p> In this equipment performance deterioration evaluation method, only specific information whose load condition satisfies a specific condition is accumulated among the equipment information and used for performance deterioration evaluation. Therefore, the energy consumption under the approximate load condition satisfying the specific condition is compared to evaluate the performance deterioration. Therefore, the performance deterioration can be appropriately evaluated. Since the information used for the evaluation is only the specific information satisfying the specific condition among the equipment information, the amount of accumulated information can be suppressed. Therefore, in this equipment performance deterioration evaluation method, the amount of information accumulated in the performance deterioration evaluation can be suppressed.</p><p> The equipment performance deterioration evaluation method according to claim 2 is the equipment performance deterioration evaluation method according to claim 1, and in the second step, the specific information for a specific period is used as the basic information in the second step. accumulate. Then, in the third step, the energy consumption of the basic information is compared with the energy consumption of other specific information to evaluate the performance deterioration. In this equipment performance deterioration evaluation method, specific information for a specific period is accumulated as basic information among the specific information and used for performance deterioration evaluation. Therefore, in this equipment performance deterioration evaluation method, the amount of information accumulated in the performance deterioration evaluation can be further suppressed.</p><p> The equipment performance deterioration evaluation method according to claim 3 is the equipment performance deterioration evaluation method according to claim 2, and the specific period is the initial period of installation of the equipment. In this equipment performance deterioration evaluation method, specific information during the initial period of installation of equipment is accumulated and used for performance deterioration evaluation. Therefore, it is possible to compare the performance of the equipment at the initial stage of installation with the performance of the equipment after a lapse of time after installation, and it is possible to further reduce the amount of accumulated information.</p><p> The equipment performance deterioration evaluation method according to claim 4 is the equipment performance deterioration evaluation method according to claim 3, wherein the equipment is an air conditioner, and for a specific period after the equipment is installed. It is a period included in one year. In this equipment performance deterioration evaluation method, specific information during the period included in one year after the installation of the air conditioner is accumulated as basic information. Air conditioners are easily affected by seasons such as summer and winter, and approximate load conditions are often repeated every year. Therefore, the performance can be appropriately compared by using the specific information in the period included in one year after the installation of the air conditioner as the basic information and comparing it with the specific information in the same period thereafter. Moreover, since it is not necessary to accumulate specific information for several years, the amount of information accumulated in the evaluation of performance deterioration can be further suppressed.</p><p> The equipment performance deterioration evaluation method according to claim 5 is the equipment performance deterioration evaluation method according to claim 4, and the specific period includes at least the first summer period after the installation of the equipment. In this equipment performance deterioration evaluation method, it is possible to appropriately compare the performance by using the specific information in the first summer period after the installation of the equipment as basic information and comparing it with the specific information in the subsequent summer period. it can. Moreover, since it is not necessary to accumulate specific information for several years, the amount of information accumulated in the evaluation of performance deterioration can be further suppressed.</p><p> The equipment performance deterioration evaluation method according to claim 6 is the equipment performance deterioration evaluation method according to claim 4 or 5, and the specific period is at least the first winter period after the installation of the equipment. Including. In this equipment performance deterioration evaluation method, it is possible to appropriately compare the performance by using the specific information in the first winter period after the installation of the equipment as basic information and comparing it with the specific information in the subsequent winter period. it can. Moreover, since it is not necessary to accumulate specific information for several years, the amount of information accumulated in the evaluation of performance deterioration can be further suppressed.</p><p> The equipment performance deterioration evaluation method according to claim 7 is the equipment performance deterioration evaluation method according to any one of claims 1 to 6, and the equipment is an air conditioner. The load condition also includes the set temperature of the air conditioner. In this equipment performance deterioration evaluation method, the energy consumption when the condition regarding the set temperature is satisfied is compared. Since the set temperature is a parameter that affects the load on the air conditioner, the energy consumption under the approximate load condition should be compared by comparing the energy consumption when the conditions related to the set temperature are satisfied. Can be done. Therefore, in this method for evaluating the performance deterioration of equipment, it is possible to evaluate the appropriate performance deterioration.</p><p> The equipment performance deterioration evaluation method according to claim 8 is the equipment performance deterioration evaluation method according to any one of claims 1 to 7, and the equipment equipment is an air conditioner. The load condition also includes the environmental temperature of the environment in which the air conditioner is installed. In this equipment performance deterioration evaluation method, the energy consumption when the condition regarding the environmental temperature of the environment in which the air conditioner is installed is satisfied is compared. Since the environmental temperature is a parameter that affects the load on the air conditioner, the energy consumption under the approximate load conditions should be compared by comparing the energy consumption when the conditions related to the environmental temperature are satisfied. Can be done. Therefore, in this method for evaluating the performance deterioration of equipment, it is possible to evaluate the appropriate performance deterioration.</p><p> The equipment performance deterioration evaluation method according to claim 9 is the equipment performance deterioration evaluation method according to claim 8, and the load condition includes the outdoor temperature. In this equipment performance deterioration evaluation method, the energy consumption when the condition regarding the outdoor temperature is satisfied is compared. Since the outdoor temperature is a parameter that affects the load on the air conditioner, the energy consumption under the approximate load condition should be compared by comparing the energy consumption when the condition regarding the outdoor temperature is satisfied. Can be done. Therefore, in this method for evaluating the performance deterioration of equipment, it is possible to evaluate the appropriate performance deterioration.</p><p> The equipment performance deterioration evaluation method according to claim 10 is the equipment performance deterioration evaluation method according to claim 8 or 9, and the load condition includes the room temperature. In this equipment performance deterioration evaluation method, the energy consumption when the condition regarding the room temperature is satisfied is compared. Since the room temperature is a parameter that affects the load on the air conditioner, the energy consumption under the approximate load conditions should be compared by comparing the energy consumption when the conditions related to the room temperature are satisfied. Can be done. Therefore, in this method for evaluating the performance deterioration of equipment, it is possible to evaluate the appropriate performance deterioration.</p><p> The equipment performance deterioration evaluation system according to claim 11 includes an equipment information acquisition unit, a storage unit, and an evaluation unit. The equipment information acquisition unit acquires equipment information including load conditions related to the load on the equipment and the energy consumption of the equipment under the load conditions. The storage unit stores only specific information in which the load condition satisfies the specific condition among the equipment information. The evaluation unit evaluates the performance deterioration by comparing the energy consumption of a plurality of specific information stored in the storage unit.</p><p> In this equipment performance deterioration evaluation system, only specific information whose load conditions satisfy specific conditions among the equipment information is stored in the storage unit and used for evaluation of performance deterioration in the evaluation unit. Therefore, the energy consumption under the approximate load condition satisfying the specific condition is compared to evaluate the performance deterioration. Therefore, the performance deterioration can be appropriately evaluated. Since the information used for the evaluation is only the specific information satisfying the specific condition among the equipment information, the amount of accumulated information can be suppressed. Therefore, in this equipment performance deterioration evaluation system, the amount of information accumulated in the performance deterioration evaluation can be suppressed.</p><p> The equipment information collecting device according to claim 12 is an information collecting device for collecting information for evaluating the performance deterioration of the equipment, and collects information on the equipment including the equipment information acquisition unit and the storage unit. apparatus. The equipment information acquisition unit acquires equipment information including load conditions related to the load on the equipment and the energy consumption of the equipment under the load conditions. The storage unit stores only specific information in which the load condition satisfies the specific condition among the equipment information.</p><p> In the information collecting device of this equipment, only the specific information whose load condition satisfies the specific condition among the equipment information is stored in the storage unit. Therefore, it is possible to compare the energy consumption under the approximate load condition in which the performance deterioration satisfies the specific condition in the evaluation. Therefore, it is possible to collect information for appropriately evaluating the performance deterioration. Since the information stored in the storage unit is only the specific information that satisfies the specific condition among the equipment information, the amount of the stored information can be suppressed. Therefore, in the information collecting device of this equipment, the amount of information accumulated in the evaluation of performance deterioration can be suppressed.</p>

<p> In the equipment performance deterioration evaluation method according to claim 1, the performance deterioration is evaluated by comparing the energy consumption under approximate load conditions that satisfy specific conditions. Therefore, the performance deterioration can be appropriately evaluated. Since the information used for the evaluation is only the specific information satisfying the specific condition among the equipment information, the amount of accumulated information can be suppressed. Therefore, in this equipment performance deterioration evaluation method, the amount of information accumulated in the performance deterioration evaluation can be suppressed.</p><p> In the method for evaluating the performance deterioration of equipment according to claim 2, the specific information for a specific period is accumulated as basic information among the specific information and used for the evaluation of the performance deterioration. Therefore, in this equipment performance deterioration evaluation method, the amount of information accumulated in the performance deterioration evaluation can be further suppressed. In the method for evaluating the performance deterioration of equipment according to claim 3, specific information during the initial period of installation of the equipment is accumulated and used for evaluation of performance deterioration. Therefore, it is possible to compare the performance of the equipment at the initial stage of installation with the performance of the equipment whose time has passed after the installation, and it is possible to further suppress the amount of accumulated information.</p><p> In the method for evaluating the performance deterioration of equipment according to claim 4, the specific information in the period included in one year after the installation of the air conditioner is used as the basic information, and is appropriately compared with the specific information in the same period thereafter. Performance comparisons can be made. Moreover, since it is not necessary to accumulate specific information for several years, the amount of information accumulated in the evaluation of performance deterioration can be further suppressed. In the method for evaluating the performance deterioration of equipment according to claim 5, the specific information in the first summer period after the installation of the equipment is used as the basic information, and the performance is appropriately compared with the specific information in the subsequent summer period. Comparisons can be made. Moreover, since it is not necessary to accumulate specific information for several years, the amount of information accumulated in the evaluation of performance deterioration can be further suppressed.</p><p> In the method for evaluating the performance deterioration of equipment according to claim 6, the specific information in the first winter period after the installation of the equipment is used as the basic information, and the performance is appropriately compared with the specific information in the subsequent winter period. Comparisons can be made. Moreover, since it is not necessary to accumulate specific information for several years, the amount of information accumulated in the evaluation of performance deterioration can be further suppressed. In the method for evaluating the performance deterioration of equipment according to claim 7, the energy consumption under the approximate load condition can be compared by comparing the energy consumption when the condition relating to the set temperature is satisfied. Therefore, in this method for evaluating the performance deterioration of equipment, it is possible to evaluate the appropriate performance deterioration.</p><p> In the method for evaluating the performance deterioration of equipment according to claim 8, the energy consumption under the approximate load condition can be compared by comparing the energy consumption when the condition relating to the environmental temperature is satisfied. Therefore, in this method for evaluating the performance deterioration of equipment, it is possible to evaluate the appropriate performance deterioration. In the method for evaluating the performance deterioration of equipment according to claim 9, the energy consumption under the approximate load condition can be compared by comparing the energy consumption when the condition relating to the outdoor temperature is satisfied. Therefore, in this method for evaluating the performance deterioration of equipment, it is possible to evaluate the appropriate performance deterioration.</p><p> In the method for evaluating the performance deterioration of equipment according to claim 10, the energy consumption under the approximate load condition can be compared by comparing the energy consumption when the condition relating to the room temperature is satisfied. Therefore, in this method for evaluating the performance deterioration of equipment, it is possible to evaluate the appropriate performance deterioration. In the performance deterioration evaluation system for equipment according to claim 11, the performance deterioration is evaluated by comparing the energy consumption under approximate load conditions that satisfy specific conditions. Therefore, the performance deterioration can be appropriately evaluated. Since the information used for the evaluation is only the specific information satisfying the specific condition among the equipment information, the amount of accumulated information can be suppressed. Therefore, in this equipment performance deterioration evaluation system, the amount of information accumulated in the performance deterioration evaluation can be suppressed.</p><p> In the information gathering device for equipment according to claim 12, it is possible to compare the energy consumption under approximate load conditions in which performance deterioration satisfies a specific condition in the evaluation. Therefore, it is possible to collect information for appropriately evaluating the performance deterioration. Since the information stored in the storage unit is only the specific information that satisfies the specific condition among the equipment information, the amount of the stored information can be suppressed. Therefore, in the information collecting device of this equipment, the amount of information accumulated in the evaluation of performance deterioration can be suppressed.</p>

[First Embodiment]

&lt;Structure of the entire system&gt; Fig. 1 shows the configuration of the performance deterioration evaluation system 1a according to the first embodiment of the present invention. This performance deterioration evaluation system 1a stores the basic information of the first air conditioner 2a that air-conditions the inside of the first property to be evaluated in the first centralized control device 3a, and the performance of the first air conditioner 2a. It is a system that evaluates deterioration.

The performance deterioration evaluation system 1a includes a first air conditioner 2a and a first centralized control device 3a. The number of air conditioners and centralized control devices constituting the performance deterioration evaluation system 1a to which the present invention is applied is not limited to these. Further, the performance deterioration evaluation system 1a may be provided with equipment other than the air conditioner. &lt;Structure of air conditioner&gt; The first air conditioner 2a is installed in each property such as a building or factory to perform air conditioning such as indoor heating and cooling.

The first air conditioner 2a has a plurality of systems SY1 and SY2 including a plurality of indoor units 6a-6h and a plurality of outdoor units 7a and 7b. The plurality of systems SY1 and SY2 include a first system SY1 and a second system SY2. The first system SY1 has a first outdoor unit 7a, a first indoor unit 6a, a second indoor unit 6b, a third indoor unit 6c, and a fourth indoor unit 6d. The second system SY2 has a second outdoor unit 7b, a fifth indoor unit 6e, a sixth indoor unit 6f, a seventh indoor unit 6g, and an eighth indoor unit 6h. Indoor units 6a-6h will be placed indoors in each property. The indoor unit 6a-6h is connected to the first centralized control device 3a by a communication line, and equipment information such as the indoor temperature and power consumption measured in each indoor unit 6a-6h is sent to the first centralized control device 3a. And send. The outdoor units 7a and 7b are located on the roof of the first property. The outdoor units 7a and 7b are connected to the first centralized control device 3a by a communication line, and transmit equipment information such as outdoor temperature to the first centralized control device 3a.

&lt;Structure of the 1st centralized control device&gt; The 1st centralized control device 3a is connected to the 1st air conditioner 2a by a communication line, and the performance deterioration of a plurality of indoor units 6a-6h and a plurality of outdoor units 7a and 7b In addition to collecting information for evaluating, centrally control multiple indoor units 6a-6h and multiple outdoor units 7a and 7b. The first centralized control device 3a is arranged in a control room or the like in the first property where the first air conditioner 2a is arranged.

As shown in FIG. 2, the first centralized control device 3a has a plurality of input / output ports P1 and P2, a storage unit 30a, an output unit 31a, and a centralized control unit 32a. The plurality of input / output ports P1 and P2 receive equipment information from the systems SY1 and SY2 of the first air conditioner 2a every hour. The plurality of input / output ports P1 and P2 are connected to the systems SY1 and SY2 by communication lines, respectively. The first centralized control device 3a has a first input / output port P1 and a second input / output port, and a communication line from the first system SY1 is connected to the first input / output port P1. In addition, the communication line from the 2nd system SY2 is connected to the 2nd I / O port P2. Therefore, the equipment information for each system SY1 and SY2 is collected and acquired by the first centralized control device 3a via the input / output ports P1 and P2. This equipment information includes load conditions and power consumption. The load condition is a parameter representing the load received by the first air conditioner 2a, and is the indoor temperature sent from the indoor unit 6a-6h, the outdoor temperature sent from the outdoor units 7a and 7b, and the set temperature in the indoor unit 6a-6h. including. The power consumption is the power consumption of the indoor unit 6a-6h under each load condition.

The storage unit 30a stores equipment information sent from each system SY1 and SY2 via the input / output ports P1 and P2. The storage unit 30a stores only basic information among the received equipment information. The basic information is the equipment information for one year after the installation of the first air conditioner 2a, and the load condition satisfies the specific condition. The specific condition is that the temperature difference between the set temperature and the indoor temperature, the outdoor temperature, the indoor temperature, etc. fall within the predetermined range. For example, in summer, the outdoor temperature is 30 ° C or more and 34 ° C or less, and the set temperature is set. It is 24 degrees or more and 28 ° C or less, and the temperature difference between the set temperature and the room temperature is 2 ° C or less. In winter, the outdoor temperature is 6 ° C or more and 10 ° C or less, the set temperature is 20 ° C or more and 24 ° C or less, and the temperature difference between the set temperature and the indoor temperature is 2 ° C or less. In the storage unit 30a, the power consumption when the above specific conditions are satisfied is stored as basic information. In addition, "accumulated" means that the information is stored for a longer period of time than other information in order to use it as a basis for performance deterioration evaluation. In addition, although it is "only", it is not only that, but also other than basic information (specific information) as long as it satisfies the problem of the present invention of suppressing the amount of information accumulated in the evaluation of performance deterioration of equipment. It does not deviate from the present invention to design so that the information of the above can be accumulated.

The centralized control unit 32a centrally controls the operation of the first air conditioner 2a and evaluates the performance deterioration based on the accumulated basic information. The centralized control unit 32a deteriorates performance by comparing the power consumption of the basic information for one year after the installation of the first air conditioner 2a with the power consumption of the equipment information that satisfies the specific conditions at the same time every year. Make an evaluation. The output unit 31a is a part that outputs equipment information received from the first air conditioner 2a, the result of performance deterioration evaluation, and the like.

&lt;Performance Deterioration Evaluation Method&gt; The performance deterioration evaluation method according to the present invention will be described with reference to FIG. This performance deterioration evaluation method includes a first step S1, a second step S2, and a third step S3. In the first step S1, the equipment information is received. The equipment information is transmitted from the first air conditioner 2a and received and acquired by the first centralized control device 3a as described above.

Then proceed to the second step S2. In the second step S2, basic information is accumulated. The basic information is stored and accumulated in the first centralized control device 3a. Then proceed to the third step S3. In the third step S3, performance deterioration evaluation is performed. The evaluation of performance deterioration is performed by comparing the above basic information with the equipment information at the same time and under the same load conditions every year, and is performed by the first centralized control device 3a.

&lt;Characteristics&gt; (1) In this performance deterioration evaluation method, only basic information out of equipment information is accumulated and used for performance deterioration evaluation. Therefore, the performance deterioration is evaluated by comparing the power consumption under the approximate load condition satisfying the specific condition. Therefore, the performance deterioration can be appropriately evaluated. Then, the evaluation of the performance deterioration is performed by accumulating only the basic information acquired in one year after the installation of the first air conditioner and comparing it with the newly obtained equipment information thereafter. Therefore, the amount of accumulated information can be suppressed by temporarily storing information other than the basic information and then deleting the information. Therefore, in this performance deterioration evaluation method, the amount of information accumulated in the performance deterioration evaluation can be suppressed. As a result, even when the memory capacity of the centralized control device is severely restricted, appropriate performance deterioration can be evaluated, and the evaluation results can be used for judgment of maintenance time and performance verification after installation of the air conditioner. can do.

(2) Conventionally, when performance deterioration is evaluated, the coefficient of performance (COP) is calculated by measuring the cooling and heating capacity from the inlet / outlet temperature and flow rate of the refrigerant of the heat source in the centralized heat source method. There are many. However, in such a performance deterioration evaluation method, it is structurally difficult to add a flow meter or the like after installation in a packaged air conditioner in which an outdoor unit and an indoor unit are packaged. Therefore, it is difficult to measure the flow rate of the refrigerant, and it is difficult to measure the cooling / heating capacity. Further, in order to measure the cooling / heating capacity of a packaged air conditioner, it is necessary to apply the maximum load under certain conditions for more accurate measurement. However, in the operating state after the installation of the air conditioner, such measurement requires a great cost.

In this performance deterioration evaluation method, performance deterioration can be appropriately evaluated from the indoor temperature, the outdoor temperature, the set temperature, and the like. Therefore, with this performance deterioration evaluation method, it is possible to evaluate the performance deterioration after installation of the packaged air conditioner, which was difficult in the past, based on the actual equipment information, and the evaluation is simply based on the elapsed time after installation. The performance deterioration evaluation can be performed more appropriately than when it is performed.

[Second Embodiment]

&lt;Structure&gt; Fig. 4 shows the configuration of the performance deterioration evaluation system 1b according to the second embodiment of the present invention. This performance deterioration evaluation system 1b controls the air conditioners 2a and 2b arranged in a plurality of properties to be managed by the centralized control devices 3a and 3b, and also controls the air conditioners via the centralized control devices 3a and 3b. This is a system that remotely manages the air conditioners 2a and 2b by collecting the equipment information of the machines 2a and 2b in the remote management device 4 in the remote control center.

The performance deterioration evaluation system 1b includes a first air conditioner 2a, a first centralized control device 3a, a second air conditioner 2b, a second centralized control device 3b, and a remote management device 4. The first air conditioner 2a and the first centralized control device 3a are connected to each other and are located in the first property. The second air conditioner 2b and the second centralized control device 3b are connected to each other and are located in a second property different from the first air conditioner 2a and the like. Further, the first centralized control device 3a and the second centralized control device 3b are connected to the remote management device 4 via a communication network IN such as the Internet, respectively. The number of properties, air conditioners, and centralized control devices constituting the equipment management system to which the present invention is applied is not limited to these. Further, the performance deterioration evaluation system 1b may be provided with equipment other than the air conditioners 2a and 2b.

Each of the air conditioners 2a and 2b has the same configuration as the first air conditioner 2a according to the first embodiment. The centralized control devices 3a and 3b have substantially the same configuration as the first centralized control device 3a according to the first embodiment, but transmit and receive control signals to and from the remote management device 4. The centralized control devices 3a and 3b include a first centralized control device 3a and a second centralized control device 3b. The first centralized control device 3a is connected to the first air conditioner 2a, collects the equipment information of the first air conditioner 2a and transmits it to the remote control device 4, and also sends the first air conditioner 2a. Centralized control. The first centralized control device 3a is arranged in a control room or the like in the first property where the first air conditioner 2a is arranged. The second centralized control device 3b is connected to the second air conditioner 2b, and is located in the management room in the second property where the second air conditioner 2b is located. The second centralized control device 3b collects the equipment information of the second air conditioner 2b and transmits it to the remote control device 4, and centrally controls the second air conditioner 2b. The second centralized control device 3b has the same configuration as the first centralized control device 3a.

The remote control device 4 is located in a remote control center located remotely from the first property and the second property, and receives equipment information from the centralized control devices 3a and 3b to remotely manage the air conditioners 2a and 2b. .. This control includes performance deterioration evaluation of air conditioners 2a and 2b. In this performance deterioration evaluation system 1b, for example, if the first centralized control device 3a having a function of accumulating basic information is not installed when the first air conditioner 2a is installed in the first property, the first air conditioner 2a is installed. Perform performance deterioration evaluation from the current equipment information of the first air conditioner 2a with reference to the equipment information received from the second centralized control device 3b that controls the second air conditioner 2b, which is the same air conditioner as 2a. Do.

In addition, in this performance deterioration evaluation system 1b, when the first centralized control device 3a having a function of accumulating basic information is installed in the first property, the first air conditioner is harmonized from the remote management device 4 to the first centralized control device 3a. It is equipped with a function to automatically or manually download the rated data of the machine 2a. With this function, performance deterioration can be evaluated by comparing the rating data of the first air conditioner 2a with the current equipment information of the first air conditioner 2a.

&lt;Characteristics&gt; In this performance deterioration evaluation system 1b, even if the centralized control devices 3a and 3b having the function of accumulating basic information are not provided at the time of delivery of the air conditioners 2a and 2b to the property, the basic information will be described later. By installing the centralized control devices 3a and 3b that have the storage function of the above, the performance deterioration evaluation can be performed appropriately.

[Other embodiments]

(1) In the above first embodiment, the performance deterioration evaluation is performed in the first centralized management device 3a, but the first centralized management device 3a does not perform the performance deterioration evaluation but accumulates basic information. It may be. For example, the basic information stored in the first centralized management device 3a is output from the output unit 31a of the first centralized management device 3a to the outside, so that the performance deterioration evaluation is performed in the external device of the first centralized management device 3a. It may be done.

(2) In the above embodiment, the equipment information for one year after the installation of the first air conditioner 2a and the information that the load condition satisfies the specific condition is accumulated as the basic information, but it is the basis of the performance deterioration evaluation. The information to be accumulated is not limited to such information as long as it can be used as. For example, the required memory capacity can be further reduced by accumulating equipment information as basic information only for a certain period during the summer and winter periods during the one year after the installation of the first air conditioner 2a. ..

The present invention has an effect of suppressing the amount of information accumulated in the evaluation of the performance deterioration of the equipment, the performance deterioration evaluation method of the equipment, the performance deterioration evaluation system of the equipment, and the information collection device of the equipment. It is useful as.

<figref num="1">The schematic diagram which shows the structure of the performance deterioration evaluation system which concerns on 1st Embodiment.</figref><figref num="2">The block diagram which shows the structure of the 1st central control device.</figref><figref num="3">A flowchart showing a performance deterioration evaluation method.</figref><figref num="4">The schematic diagram which shows the structure of the performance deterioration evaluation system which concerns on 1st Embodiment.</figref>

Code description

1a, 1b Performance deterioration evaluation system 2a 1st air conditioner (equipment) 2b 2nd air conditioner (equipment) 3a 1st centralized control device (information collection device) 3b 2nd centralized control device (information collection device) 4 Remote management device (evaluation unit) 30a Storage unit 32a Centralized control unit (evaluation unit) P1, P2 Input / output port (equipment information acquisition unit) S1 1st step S2 2nd step S3 3rd step