JP2007327656A - Information management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information management system capable of acquiring equipment data of every equipment item while reducing load of a management device, even when protocols applied to the equipment items are different from each other in performing control and management of the plurality of equipment items. <P>SOLUTION: An air conditioning monitoring system for independently controlling or managing a plurality of air conditioners comprises a PLC and a repeating installation. The PLC manages the equipment data relating to the air conditioners with a prescribed basic telecommunication protocol. The repeating installation has a collecting portion and a protocol converting portion. The collecting portion collects equipment data of the air conditioner on the basis of prescribed collecting conditions. A protocol changing portion transmits the equipment data to the PLC while converting the same with the basic telecommunication protocol only when the acquired equipment data relating to the air conditioner is kept with the other telecommunication protocol excluding the basic telecommunication protocol. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an information management system, and more particularly to an information management system related to control or management of equipment.

  2. Description of the Related Art Conventionally, an equipment management system or the like is known as a system that controls or manages data about equipment such as an air conditioner or lighting equipment.

For example, in the information management system disclosed in Patent Document 1 described below, a general-purpose controller is employed as a main body that performs control and management, and each equipment is controlled and managed by this controller. This controller employs a protocol conversion function. For this reason, even if equipment that exchanges information using a non-standard protocol different from the standard protocol used in general-purpose controllers is included in the control and management targets, the protocol conversion function converts the standard protocol. By doing so, it can be included as a control / management target. That is, even if the protocol adopted in the equipment is a non-standard protocol, it can be taken into the system as a control object or a management object by converting the protocol.
JP 2004-232980 A

  By the way, in the system described in Patent Document 1 described above, not only equipment that adopts the reference protocol but also equipment that adopts the non-reference protocol is included as a monitoring object, and the degree of freedom of the monitoring object is expanded. When collecting the equipment data of each equipment device with a management apparatus adopting the standard protocol, some data needs to be collected by converting the protocol.

  Here, when the management device collects equipment data of equipment, for example, when performing processing such as sending a command to periodically collect information to each equipment, the management equipment It is necessary to perform operations such as processing for timing the periodic collection and transmitting a request signal for device data. For this reason, the management apparatus needs to perform processing for collecting device data as well as analyzing the device data, which increases the processing load.

  An object of the present invention is to control and manage a plurality of facility devices, and even if the protocol adopted in the facility devices is different, the device data for each facility device while suppressing the load on the management device It is to provide an information management system capable of acquiring the information.

  An information management system according to a first invention is an information management system for individually controlling or managing a plurality of facility devices, and includes a management device and a relay device. The management device manages equipment data related to equipment according to a predetermined communication protocol for each of a plurality of equipment. The relay device has a collection unit and a protocol conversion unit. The collection unit performs a device data collection process for the equipment based on a predetermined collection condition. The protocol conversion unit converts the device data so as to conform to the predetermined communication protocol only when the acquired device data related to the facility device conforms to the individual communication protocol other than the predetermined communication protocol. Send. Here, the predetermined collection condition includes, for example, a case where there is a notification that the predetermined set range is exceeded periodically.

  This information management system is a system in which a control device performs monitoring by collecting device data of each facility device based on a predetermined communication protocol. In this information management system, it is possible to monitor a variety of equipment including equipment that uses an individual communication protocol other than a predetermined communication protocol as a target for collecting equipment data via the protocol converter. It is possible.

  In this case, the relay device is made to collect the device data of each equipment device. Then, the management device manages device data that is transmitted after being converted into a predetermined communication protocol by the protocol conversion unit of the relay device.

  As a result, the relay device through which the device data passes for the protocol conversion is responsible for the collection process, so that the management device that manages the device data is not burdened with the collection process, thereby reducing the processing load on the management device. The

  An information management system according to a second aspect of the invention is the information management system according to the first aspect of the invention, wherein the relay device further includes a collection permission data storage unit that stores collection permission data that allows collection in advance for each of a plurality of facility devices. Have. Then, the protocol conversion unit determines for each facility device whether the device data collected from a plurality of facility devices corresponds to the permitted collection data. Only when the individual communication protocol is used, the device data is converted to conform to a predetermined communication protocol and transmitted to the management apparatus. Note that the collection permission data here includes, for example, a case where the relay apparatus requests and receives the management apparatus and receives it.

  Here, in the collection permission data storage unit, collection permission data for determining whether transmission to the management apparatus is permitted among the device data collected from each facility device is stored in advance. . The protocol conversion unit determines whether the device data collected from each facility device corresponds to the collection permission data based on the collection permission data stored in advance. For this reason, for example, even if unnecessary device data that does not correspond to the collection permission data set in advance or incorrect device data is collected from each equipment device in the relay device, this unnecessary device data And incorrect device data can be identified.

  Therefore, the protocol conversion unit does not perform a high-load process of converting all device data collected from each facility device, but converts only the device data corresponding to the collection allowable data to perform protocol conversion. Thus, it is possible to perform processing with reduced load and avoid unnecessary processing load such as conversion processing of unnecessary device data or incorrect device data.

  As a result, when collecting equipment data for multiple equipment, only equipment data that requires protocol conversion processing is required, even if the protocol, control content, and management content used in the equipment are different. It is possible to reduce the load of protocol conversion processing.

  In the information management system of the first invention, since the relay device through which the device data passes for the protocol conversion is responsible for the collection process, the management device that manages the device data is not burdened with the collection process. The processing load is reduced.

  In the information management system of the second invention, when collecting equipment data for a plurality of equipment, even if the protocol, control contents, and management contents adopted in the equipment are different, protocol conversion processing is performed. This is performed only for necessary device data, and the load of protocol conversion processing can be reduced.

<Overall configuration of air conditioning monitoring system 100>
In FIG. 1, the schematic block diagram of the air-conditioning monitoring system 100 which concerns on one Embodiment of this invention is shown.

  The air conditioning monitoring system 100 is a system that sends and controls operation commands to a plurality of types of air conditioners having different communication protocols, and collects and manages air conditioner data.

  The air conditioning monitoring system 100 is mainly configured by a PLC 10, a relay device 20, a basic air conditioner group 30, non-basic air conditioner groups 40 and 50, a remote monitoring device 90, and the like.

  Here, the remote monitoring device 90 and the PLC 10 are communicably connected via a public line 91 such as the Internet. Further, the PLC 10 and the relay device 20 perform communication in accordance with a unique basic communication protocol suitable for management of the air conditioners 31, 32, and 33. Here, the basic air conditioner group 30 communicates with the relay device 20 in accordance with the basic communication protocol P1. On the other hand, the non-basic air conditioner groups 40 and 50 are different from the basic air conditioner group 30 because of different manufacturers, and other communication protocols having different communication standards from the basic communication protocol P1 with the relay device 20. Communication according to P2 and P3 is performed.

  Each of the air conditioners 31 to 53 is managed by assigning a unique address to each, and may be a multi-type air conditioning facility including a plurality of indoor units and outdoor units, or a heat source device and It may be a central air conditioning facility equipped with a secondary air conditioning device.

  In each of these air conditioners 31 to 53, basic air conditioning control common to any of the air conditioner groups 30, 40, 50 is executed based on basic control data stored in the relay device 20. . And it is the control according to the property which cannot respond with basic control data, Comprising: About special control which is set as an option in PLC10, each air conditioner 31-53 via the relay apparatus 20 from PLC10 It is executed based on the control command data transmitted to. In this way, by separating basic air conditioning control and optional special control, it is possible to quickly respond to the addition / change of control command data as an application for each property with a small number of steps and low load. It becomes like this. Further, by dividing the monitoring load of the air conditioners 31 to 53 into the PLC 10 and the relay device 20, the CPU load of the PLC 10 and the CPU load of the relay device 20 are distributed.

  Moreover, as an example of the control command data as an optional special control here, in a property provided with a plurality of heat source devices, a large number of units are driven in a state where the air conditioning load is large, and the state where the air conditioning load is small Then, there are heat source drive number control such as driving a small number.

  Hereinafter, each component of the air conditioning monitoring system 100 will be described.

  The PLC 10 is a control device called a so-called programmable logic controller that is communicably connected to the plurality of air conditioners 31 to 53 via the relay device 20. The PLC 10 transmits and controls various control command data to the air conditioners 31 to 53, collects and manages air conditioner data from the air conditioners 31 to 53 via the relay device 20, and the like. Thus, energy-saving operation control or the like is performed by demand control or schedule adjustment control. The air conditioner data here includes, for example, the operating time of the air conditioner, the operation / stop state, the air volume, the wind direction, the power consumption, the operation mode during operation, the indoor temperature detected by the sensor, the set temperature / outdoor There are temperature, refrigerant pressure, condition of components constituting the air conditioner, occurrence and details of abnormality in the air conditioner, refrigerant evaporating temperature setting value of outdoor unit, setting value of heat generation load of building, and the like. Here, as the determination of the abnormality in the PLC 10, for example, there is a case where the collected air conditioner data is not within a set range.

  Further, when information indicating that there is something approaching the rewrite life is obtained for the non-volatile memories 31m to 53m of the air conditioners 31 to 53 to be described later, the information is displayed and output so as to be replaced. The transmission of the control command data and the reception of the air conditioner data here are performed by communication according to the basic communication protocol P1. Moreover, this PLC10 transmits the various data collected from each air conditioner 31-53 with respect to the remote monitoring apparatus 90 via public lines 91, such as the internet.

  In addition, in order to monitor and control the air conditioners 31 to 53 by performing communication with the relay device 20 and communication with the remote monitoring device 90, the PLC 10 includes a PLC management information area, a PLC reception information area, and a PLC transmission information area. It has a PLC memory 11 consisting of two areas. In the PLC management information area, it is related to the entire communication such as discarded control command data, data on presence / absence of heartbeat of the air conditioners 31 to 53, communication data, status data, specific data of devices with overlapping addresses, etc. Data is recorded. In the PLC reception information area, the air conditioner data collected by the relay device 20 from the air conditioners 31 to 53 is set for each address of the air conditioner, for example, “the air conditioner at address OO is currently in the xx state”. Record the data. In the PLC transmission information area, optional control command data that the PLC 10 received from the remote monitoring device 90 or the like wants to transmit to the air conditioners 31 to 53 is recorded. The relay device 20 receives the data by reading out the control command data recorded in this area.

  As described above, the relay device 20 is interposed in communication between the PLC 10 and each of the air conditioners 31 to 53, and includes a protocol conversion unit 21, a command memory 22, a collection memory 23, a communication unit 24, a collection unit 25, and a rewrite control. Part 26.

  The protocol conversion unit 21 performs processing for converting communication data such as other communication protocols P2 and P3 that do not comply with the basic communication protocol P1 used for communication between the PLC 10 and the relay device 20 into data according to the basic communication protocol P1. Conversely, processing for converting communication data of the basic communication protocol P1 into data according to other communication protocols P2, P3, and the like is performed. At this time, the protocol conversion process is performed after determining the correspondence with the contents of data stored in the command memory 22 and the collection memory 23 described later.

  The command memory 22 is a control command data transmitted from the PLC 10 via the relay device 20 to each of the air conditioners 31 to 53, and can be implemented in the air conditioner. Command allowable data is stored. The basic control data is data relating to basic control of air conditioning common to the above-described air conditioners 31 to 53. And the relay apparatus 20 transmits the basic control data of the instruction | command memory 22 with respect to each air conditioner 31-53 via the communication part 24, and is fundamental among the air conditioning controls of each air conditioner 31-53. Allows control. The basic control data here may be stored in advance in the command memory 22 of the relay device 20, or the relay device 20 may acquire it from the PLC 10 during initial setting communication. The command allowance data is set to determine whether or not the optional control command data of the air conditioner transmitted from the PLC 10 to the relay device 20 can be executed in the air conditioner to be controlled. It is treated as data for judging whether or not For example, the control command data transmitted from the PLC 10 can take a variety of byte-variable data forms called operation codes, and the command allowable data defines acceptable data formats. The case is considered. In this case, if the data format does not match, it can be determined that the control command data is unexpected. In addition, for example, when more control command data is transmitted from the PLC 10 side in a setting in which transmission of control command data from the relay device 20 to each of the air conditioners 31 to 53 is restricted to 16 per second. It is also conceivable that it is determined that it does not correspond to the command allowable data.

  The collection memory 23 stores a predetermined type of collection permission data set to be collected in advance among the air conditioner data collected from the air conditioners 31 to 53. As the collection permission data here, for example, the operation mode of each of the air conditioners 31 to 53, the detection value of each sensor, setting information, and the like are set. The collection allowable data may be configured to be stored in the collection memory 23 in advance, or may be configured to be acquired through communication with the PLC 10.

  The communication unit 24 is various interfaces for performing communication between the relay device 20 and the PLC 10 and communication between the relay device 20 and each of the air conditioners 31 to 53.

  The collection unit 25 determines the timing and conditions for collecting the air conditioner data from each of the air conditioners 31 to 53. And when collecting, the collection part 25 performs a collection process so that the communication part 24 may transmit the signal which requests | requires air conditioner data with respect to each air conditioner 31-53, and each air conditioner 31 is sent as the response. Collect ~ 53 air conditioner data. Here, various settings can be made for the timing of collection.For example, when the timing is set so that data is collected periodically, or when certain data of the air conditioner is out of the predetermined value range and an abnormality is reported. It is possible to set to collect.

  The rewrite control unit 26 counts the number of rewrites of the non-volatile memories 31m to 53m provided in the air conditioners 31 to 53 described later, and suppresses the transmission frequency of the control command data when the number of rewrites exceeds a predetermined number. By performing such control, control is performed so as to avoid the early rewrite life of the nonvolatile memories 31m to 53m. Specifically, frequent transmission of control command data from the PLC 10 is suppressed by notifying the PLC 10 that the number of rewrites exceeds a predetermined number. In addition to this, it is also possible to perform control that restricts when the number of rewrites per unit time exceeds a predetermined frequency. In addition, when it is determined that there are non-volatile memories 31m to 53m whose number of rewrites is near the end of their lifetime, the communication unit 24 notifies the PLC 10 accordingly.

  The basic air conditioner group 30 is composed of a plurality of air conditioners 31, 32, 33..., And communicates with the relay device 20 according to the basic communication protocol P1. Each of the air conditioners 31, 32 and 33 is a non-volatile memory (for example, EEPROM) that stores transmitted air conditioning command data, various sensors such as temperature sensors and pressure sensors of the air conditioner, and history information such as setting values. ) 31m, 32m, 33m respectively.

  The non-basic air conditioner group 40 is composed of a plurality of air conditioners 41, 42, 43,... For communication with the relay device 20, other communication standards differ from the basic communication protocol P1. Communication is performed according to the communication protocol P2. Similarly, for each of the air conditioners 41, 42 and 43, a nonvolatile memory for storing the air conditioning command data transmitted, various sensors such as temperature sensors and pressure sensors of the air conditioner, and history information such as set values. (For example, EEPROM) 41m, 42m, and 43m, respectively.

  The non-basic air conditioner group 50 is composed of a plurality of air conditioners 51, 52, 53... For communication with the relay device 20, other communication standards different from the basic communication protocol P1 are used. Communication is performed according to the communication protocol P3. Similarly, for each of the air conditioners 51, 52, 53, a non-volatile memory that stores history information such as transmitted air conditioning command data, various sensors such as temperature sensors and pressure sensors of the air conditioners, and set values. (For example, EEPROM) 51m, 52m, and 53m, respectively.

  These non-volatile memories 31m to 53m have a limit on the number of times of rewriting such as 100,000 times, and the rewriting exceeding that number is not guaranteed.

  In addition, with respect to these nonvolatile memories 31m to 53m, commands such as setting change from a manual controller (not shown) provided adjacent to each of the air conditioners 31 to 53 are also rewritten and stored once. Is counted as

  These non-volatile memories 31m to 53m are configured so that necessary data can be held even when power supply is stopped due to a power failure or the like due to a power failure or the like. Is stored. As a result, even after power recovery, air conditioning is performed at a set temperature that is the same as that before the power failure, so that the user's comfort is not impaired.

  The remote monitoring device 90 exists remotely in the property where the air conditioners 31 to 53, the relay device 20, and the PLC 10 are installed, and manages the air conditioner data transmitted from the PLC 10 through the public line 91. In order to transmit a control command to each of the air conditioners 31 to 53, command data is transmitted to the relay device 20. This remote monitoring device 90 is for providing a service related to the maintenance of the air conditioners 31 to 53 to the administrator of the PLC 10 based on the air conditioner data regarding the air conditioners 31 to 53 collected by the air conditioning monitoring system 100. Is provided. Services related to the maintenance of the PLC 10 include abnormal monitoring of the PLC 10, failure prediction, charge management such as electricity charges associated with the use of the PLC 10, proposals for improving the usage of the PLC 10 by data analysis, creation of various reports, etc. .

<Transmission of control command data from PLC>
Regardless of the type of communication protocol (basic communication protocol, non-basic communication protocol) and the type of network configured thereby, various control command data are created as control command data from the PLC 10, and each air conditioner 31 to 53 can be transmitted. However, among such control command data, there are commands that cannot be handled on the air conditioners 31 to 53 side, and control commands that have been set in advance so as not to perform a response according to the commands. Here, in such a case, control command data transmitted from the PLC 10 toward the air conditioners 31 to 53 can be specified.

  Specifically, when the control command data is transmitted from the PLC 10 to each of the air conditioners 31 to 53, the protocol conversion unit 21 receives the command permission stored in the command memory 22 as shown in FIG. The data is read and it is determined whether or not the control command data transmitted from the PLC 10 corresponds to the command allowable data. Then, the protocol conversion unit 21 controls the control command data corresponding to the command allowable data so that only the control command data corresponding to the command allowable data can be transmitted from the communication unit 24 to each of the air conditioners 31 to 53. Only to identify.

  Here, the protocol conversion unit 21 converts only the specified control command data into the control protocol data of the other communication protocols P2 and P3 so as to conform to the basic protocol P1 by performing protocol conversion processing, In the case of the basic communication protocol P1, it is maintained as it is without being converted.

  Thereby, the communication part 24 transmits only the control command data corresponding to command permission data with respect to each air conditioners 31-53, respectively. Here, each of the air conditioners 31 to 53 stores the transmitted control command data by rewriting it in the nonvolatile memories 31m to 53m that the air conditioner 31 to 53 has, and reflects it in the air conditioning control.

  In addition, when there is control command data that does not correspond to the command permissible data, the protocol conversion unit 21 does not perform protocol conversion processing on the control command data, and the air conditioners 31 to 31 via the communication unit 24. No transmission is performed for 53, and it is discarded.

  As a result, unnecessary load due to protocol conversion processing of control command data is avoided.

<Collecting air conditioner data from each air conditioner>
When the collection unit 25 transmits a signal for requesting air conditioner data to each of the air conditioners 31 to 53 via the communication unit 24, a huge amount of air conditioner data is transmitted from each of the air conditioners 31 to 53. Will be sent to.

  Here, when the relay device 20 collects the air conditioner data from each of the air conditioners 31 to 53, the protocol conversion unit 21 reads the collection permission data stored in the collection memory 23 as shown in FIG. Thus, for a huge amount of air conditioner data, it is determined whether the air conditioner data collected from each of the air conditioners 31 to 53 corresponds to the collection permission data.

  Then, the protocol conversion unit 21 extracts only the air conditioner data corresponding to the collection allowable data from the enormous amount of air conditioner data, and transmits only the extracted air conditioner data from the communication unit 24 to the PLC 10. Only the air conditioner data corresponding to the collection allowance data is specified.

  Here, the protocol conversion unit 21 converts only the specified air conditioner data to conform to the basic protocol P1 by performing protocol conversion processing in the case of air conditioner data of other communication protocols P2 and P3, In the case of the basic communication protocol P1, it is maintained as it is without being converted.

  Thereby, the communication unit 24 transmits only the air conditioner data corresponding to the collection permission data to the PLC 10.

  If there is air conditioner data that does not correspond to the collection allowable data, the protocol conversion unit 21 transmits the air conditioner data to the PLC 10 via the communication unit 24 without performing the protocol conversion process. Destroy without.

  For this reason, by discarding unnecessary air conditioner data, the capacity of the PLC memory 11 can be designed to be small while avoiding unnecessary data protocol conversion processing.

<Non-volatile memory rewrite limit control>
The rewrite control unit 26 counts the number of times of rewriting of the nonvolatile memories 31m to 53m (including the number of setting changes from the manual controller) for each of the air conditioners 31 to 53, and according to the number of times of life rewriting set and input in advance. Then, it is determined for each of the non-volatile memories 31m to 53m whether or not it is near the end of life depending on whether or not the predetermined number of times of rewriting has been exceeded. Note that the determination of the life here may be performed based on the rewriting frequency.

  If there is a non-volatile memory that is determined to be near the end of its lifetime, the rewrite control unit 26 notifies the PLC 10 via the communication unit 24 and causes the PLC 10 to perform display control and the like. Furthermore, the person who is monitoring is notified by mail transmission etc. with respect to the remote monitoring apparatus 90. FIG.

  Here, with the reception of such mail as a trigger, control is performed such that the transmission frequency of the control command data transmitted from the remote monitoring device 90 to the PLC 10 is reduced or a notification is received for the non-volatile memory that is approaching the end of its life. The PLC 10 performs control to reduce the transmission frequency of the control command data to the air conditioner including the non-volatile memory near the end of its life.

  This makes it possible to extend the lifetime of the nonvolatile memories 31m to 53m as much as possible.

<Characteristics of air conditioning monitoring system 100>
(A)
In this air conditioning monitoring system, since the relay device 20 includes the protocol conversion unit 21, the air conditioner groups 40 and 50 in which the communication protocol is different from the basic communication protocol P1 and the other communication protocols P2 and P3 are the basis. Can also be included as monitoring targets.

  In the air conditioning monitoring system 100 of the present embodiment, the execution subject of the air conditioner data collection process is not the PLC 10 but the relay device 20 that performs the protocol conversion process. For this reason, it becomes possible not to apply the load of a collection process to PLC10 which manages and controls the air conditioners 31-53.

  In addition, it is indispensable to perform protocol conversion processing in the present system in which restrictions on the communication protocol are relaxed in order to expand the degree of freedom of monitoring targets of the air conditioner. The system configuration is simplified by adopting a configuration in which the relay device 20 that performs the protocol conversion processing collects the air conditioner data.

(B)
In the air conditioning monitoring system 100 of the present embodiment, the air conditioning unit data collected from each of the air conditioning units 31 to 53 is collected before the protocol conversion processing is performed on the processing load of the protocol conversion processing required in the relay device 20. Thus, only the necessary air conditioner data is extracted to perform protocol conversion processing, and unnecessary protocol conversion processing is eliminated, thereby reducing the processing load.

<Other embodiments>
As mentioned above, although embodiment of this invention was described based on drawing, a specific structure is not restricted to these embodiment, It can change in the range which does not deviate from the summary of invention.

  For example, in the above-described embodiment, the system configuration in which the PLC 10 and the relay device 20 are separately provided has been described as an example. However, the present invention is not limited to this, and the functions of the respective devices are left as they are. For example, a system configuration in which the PLC 10 includes the relay device 20 may be adopted. Even in this case, the same effects as in the above embodiment can be obtained.

  If the present invention is used, equipment data for each air conditioner can be collected while suppressing the load on the system. Therefore, when controlling and managing a plurality of air conditioners, it is adopted in each air conditioner. Application to a collective monitoring system when the protocol, control content, and management content are different is particularly useful.

1 is a schematic configuration diagram of an air conditioning monitoring system according to an embodiment of the present invention. It is a control block diagram of an air conditioning apparatus. It is a flowchart of test run mode.

Explanation of symbols

10 PLC (control device)
11 PLC memory 20 Conversion device (relay device)
21 Protocol conversion unit 22 Command memory (command permission data storage unit)
23 Collection memory (collection permission data storage)
24 Communication Department 25 Collection Department 31-33 Air Conditioner (Equipment)
41-43 Air conditioner (equipment)
51-53 Air conditioner (equipment)
100 Air conditioning monitoring system (information management system)

Claims (2)

An information management system (100) for individually controlling or managing a plurality of facility devices (31 to 53),
A management device (10) for managing device data related to the facility device in accordance with a predetermined communication protocol for each of the plurality of facility devices;
The collection unit that performs device data collection processing of the facility device based on a predetermined collection condition, and only when the acquired device data related to the facility device conforms to an individual communication protocol other than the predetermined communication protocol A relay device (20) having a protocol conversion unit (21) for converting device data to conform to the predetermined communication protocol and transmitting the device data to the management device;
An information management system (100) comprising: The relay device (20) further includes a collection permission data storage unit (23) that stores collection permission data that allows collection in advance for each of the plurality of facility devices,
The protocol conversion unit (21) determines whether the device data collected from the plurality of facility devices (31 to 53) corresponds to the collection permission data for each facility device, and when it is determined to correspond And only when the individual communication protocol other than the predetermined communication protocol is used in the facility device, the device data is converted to conform to the predetermined communication protocol and transmitted to the management device.
The air conditioner (1) according to claim 1.

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