JP4380738B2 - Communication method between air conditioners, communication system between air conditioners, and communication program between air conditioners - Google Patents

Description

  The present invention relates to a communication method between air conditioners for a plurality of air conditioners, a communication system between air conditioners, and a communication program between air conditioners.

  Conventionally, in an air conditioning system constituted by a plurality of indoor units and a plurality of outdoor units, a system in which the indoor units and the outdoor units are connected via a communication line is used.

  In such a conventional system, when constructing a network that connects indoor units and outdoor units via communication lines, it is necessary to perform complicated work while confirming the connection destination, and connection errors are likely to occur.

On the other hand, in Patent Document 1 shown below, when an outdoor unit has an address setting function for an indoor unit, a network bus including the outdoor unit is constructed by sequentially connecting adjacent indoor units in series. In addition, a technology for setting an address for an indoor unit for which an address is not set is proposed in a state where access from the outdoor unit to an indoor unit connected downstream from the indoor unit for which an address is not set is prohibited. . Thereby, it is possible to automatically assign different addresses one by one in order from the upstream indoor unit via the network.
Japanese Patent Laid-Open No. 2004-77018

  However, in the system described in Patent Document 1, since addresses are simply assigned to the indoor units and the outdoor units, communication between the outdoor units and between the indoor units cannot be performed. In particular, outdoor units and indoor units connected across a plurality of networks cannot communicate with each other.

  The present invention has been made in view of the above points, and an object of the present invention is to communicate between air conditioners that perform address setting so that IP communication can be performed between air conditioners connected to different networks. A method, a communication system between air conditioners, and a communication program between air conditioners.

A communication method between air conditioners according to a first aspect of the present invention is an address setting method for setting an address for each of a plurality of air conditioners connected to a plurality of networks separated by routers and having a unique ID. A step of assigning an IP address to each of the air-conditioning devices, and a plurality of air-conditioning devices to which the IP addresses have been assigned are associated with the unique IDs of the devices and the assigned IP addresses. A step of accessing the management device via a router and transmitting it, a step of the management device creating an information table in which device information transmitted from a plurality of air conditioning devices is collected together, and a table of information for each of the plurality of air conditioning devices Each of the plurality of air conditioners stores a step that the management device transmits via the router and an information table And step, the air conditioning equipment each other are connected to different networks, and performing communication by transmitting the information to the air-conditioning device connected to the destination network while via the router using the information table, the I have. Here, the communication via the router does not have to be performed by all of the air conditioners, and only a part of the communication needs to be performed via the router.

  Here, even when the air conditioners are connected across a plurality of networks, the management apparatus associates the respective IDs of the air conditioners with their own IDs and the IP addresses assigned from the routers. Are collected through the router, and an information table is created. And the management apparatus can transmit and store this information table with respect to each air conditioner.

  As a result, address setting can be performed automatically, and each air conditioner can store the information table to perform IP communication between the air conditioners.

  The communication method between air conditioners according to the second invention is the communication method between air conditioners according to the first invention, wherein the device information includes information indicating whether the air conditioner is an indoor unit or an outdoor unit. Yes.

  Here, each air conditioner stores the device information table, thereby making it possible to grasp whether the other party performing the IP communication is an indoor unit or an outdoor unit.

  A communication method between air conditioners according to a third aspect of the present invention is the communication method between air conditioners according to the second aspect of the present invention, wherein the device information includes information indicating network affiliation.

  Here, since the network to which the air conditioner belongs can be grasped, the IP communication between the air conditioners can be easily performed even while belonging to a different network.

  A communication method between air conditioners according to a fourth invention is the communication method between air conditioners according to any of the first to third inventions, wherein the management device is a server connected to the air conditioner via at least the Internet. .

  Here, even if the management device exists not only in the local network but also in a remote place, it is possible to automatically realize IP communication between the air conditioning devices.

A communication system between air conditioners according to a fifth aspect includes a plurality of air conditioners, a router, and a management device. The plurality of air conditioners are connected to a plurality of networks and have unique IDs. The router divides a plurality of networks and assigns an IP address to each of the plurality of air conditioners. The management device receives device information in which a given IP address and ID are associated from each of a plurality of air conditioning devices by being accessed via a router, and creates an information table in which the device information is grouped together. And transmitted to a plurality of air conditioners. Each of the plurality of air conditioners can store an information table. Air conditioners connected to different networks communicate with each other by transmitting information to the air conditioners connected to the partner network using the information table via the router . Here, the communication via the router does not have to be performed by all of the air conditioners, and only a part of the communication needs to be performed via the router.

  Here, even when the air conditioners are connected across a plurality of networks, the management apparatus associates the respective IDs of the air conditioners with their own IDs and the IP addresses assigned from the routers. Are collected through the router, and an information table is created. And the management apparatus can transmit and store this information table with respect to each air conditioner.

  As a result, address setting can be performed automatically, and each air conditioner can store the information table to perform IP communication between the air conditioners.

A communication program between air conditioners according to a sixth aspect of the present invention is an address setting program for setting an address to each of a plurality of air conditioners connected to a plurality of networks separated by routers and having a unique ID. Device information in which an IP address is assigned to each of the air-conditioning devices, and a plurality of air-conditioning devices to which the IP address is assigned are associated with a unique ID that the device has and an assigned IP address. To access the management device via the router and to transmit, to the management device to create an information table in which each piece of device information transmitted from the plurality of air conditioning devices is collected, and to the information table For each step, the management device transmits the information through the router, and the information table includes a plurality of empty tables. A step of storing in each device, the air conditioning equipment each other are connected to different networks, the communication by sending information to the air-conditioning device connected to the destination network while via the router using the information table And performing steps. Here, the communication via the router does not have to be performed by all of the air conditioners, and only a part of the communication needs to be performed via the router.

  Here, even when the air conditioners are connected across a plurality of networks, the management apparatus associates the respective IDs of the air conditioners with their own IDs and the IP addresses assigned from the routers. Are collected through the router, and an information table is created. And the management apparatus can transmit and store this information table with respect to each air conditioner.

  As a result, address setting can be performed automatically, and each air conditioner can store the information table to perform IP communication between the air conditioners.

  In the communication method between the air conditioners according to the first aspect of the invention, address setting can be automatically performed, and each air conditioner can store IP tables so that IP communication between the air conditioners can be performed.

  In the communication method between the air conditioners according to the second aspect of the invention, each air conditioner stores the device information table, thereby making it possible to grasp whether the other party performing the IP communication is an indoor unit or an outdoor unit.

  In the communication method between air conditioners according to the third aspect of the invention, the network to which the air conditioner belongs can be grasped, so that IP communication between the air conditioners can be easily performed even while belonging to different networks. become.

  In the communication method between the air conditioners of the fourth invention, IP communication between the air conditioners is automatically realized even when the management device exists not only in the local network but also in a remote place. be able to.

  In the communication system between air conditioners according to the fifth aspect of the invention, address setting can be automatically performed, and each air conditioner stores an information table to enable IP communication between the air conditioners.

  In the communication program between air conditioners according to the sixth aspect of the invention, address setting can be performed automatically, and each air conditioner can store information tables to perform IP communication between the air conditioners.

<Schematic configuration of air conditioning system>
In FIG. 1, the schematic block diagram of the air conditioning system 100 by which one Embodiment of this invention was employ | adopted is shown.

  As shown in FIG. 1, the air conditioning system 100 includes a server 70, routers 91 and 92 (routers R 1 and R 2), hubs 31, 32 and 33 (hubs H 1, H 2 and H 3), and outdoor units 50 and 60. And indoor units 51, 52, 53, 61, 62, 63 and the like.

  The server 70 is connected to the router 91 via the Internet IN, and communication using the global IP address is performed during this period.

  The router 91 is connected to the router 92 and the hub 31 via the network NW1. The router 91 is provided with a firewall in order to prevent unauthorized access from the outside. The router 91 performs a process for converting a private IP address into a global IP address, and a process for converting an IP address and a port number when a plurality of private IP addresses are shared by one global IP address.

  The outdoor unit 50 and the outdoor unit 60 are connected to the hub 31 by Ethernet (registered trademark), and these outdoor units 50 and 60 belong to the network NW1. Thus, the router 91 and the outdoor units 50 and 60 can communicate with each other through the hub 31 via the private IP address.

  The router 92 is connected to the hub 32 and the hub 33 via the network NW2.

  The hub 32 is connected to the indoor units 51, 52, and 53 by Ethernet (registered trademark). These indoor units 51, 52, and 53 belong to the network NW2. Thus, the router 92 and the indoor units 51, 52, and 53 can communicate with each other through the private IP address via the hub 32.

  The hub 33 is connected to the centralized controller 40 and indoor units 61, 62, and 63 by Ethernet (registered trademark). These centralized controller 40 and indoor units 61, 62, 63 also belong to the network NW2. As described above, the router 92, the indoor units 61, 62, 63, and the centralized controller 40 can communicate with each other through the private IP address via the hub 33.

  The centralized controller 40 is one of air conditioners like the outdoor unit and the indoor unit, and can perform various setting operations for the air conditioners in the local network.

  The outdoor units 50 and 60 and the indoor units 51, 52, 53, 61, 62, and 63 hold IDs (MAC addresses) that identify themselves in advance.

  Note that the outdoor units 50 and 60 used here need to wait for the rising time to elapse after starting operation until they reach a predetermined stable state. The rise time here refers to the start of the operation of the outdoor units 50, 60 and before the indoor heat exchangers 51a, 52a, 53a (see FIG. 16) of the indoor units or the indoor heat exchangers 51a, 52a, 53a. Is a time required for the temperature detected by the temperature sensors 51e, 51f, 52e, 52f, 53e, 53f (see FIG. 16) to be stabilized, for example, a predetermined time determined by experimental data. Say. As an experiment here, for example, the detected values of the temperature sensors 51e, 51f, 52e, 52f, 53e, and 53f before the outdoor units 50 and 60 start the operation, and the temperature sensors 51e and 51f after the operation starts. , 52e, 52f, 53e, and 53f may be determined as stable when the difference between the detected values is maintained within a predetermined numerical range for a certain period. Here, the thing of the structure from which the rise time of the outdoor unit 50 and the rise time of the outdoor unit 60 differ may be sufficient.

  Here, for example, each air conditioner described above is constructed by a network equipped with IPv4 as shown in FIG. 1 with a private IP address according to IPv4. A network system based on IPv6 may be used.

  Note that the outdoor units 50 and 60, the indoor units 51, 52, 53, 61, 62, and 63, and the centralized controller 40 are merely physically connected, and an IP address setting process described later is performed. , They will be able to communicate with each other.

  As will be described later, at this time, system detection processing is performed to identify an indoor unit that is connected to a certain outdoor unit and configures a refrigerant circuit, thereby enabling setting, control, and the like according to the system. ing.

<Automatic address setting>
First, as an outline, the router 91 is assigned a global IP address so that communication can be performed with the server 70 as an external server via the Internet IN using the global IP address. The router 91 holds a plurality of types of private IP addresses in advance in order to assign addresses to a plurality of locally connected devices. Similarly, the router 92 connected to the router 91 via the network NW1 holds a plurality of types of private IP addresses in order to assign addresses to devices locally connected to the router 92. is doing. The outdoor units 50 and 60, the indoor units 51, 52, 53, 61, 62, and 63 and the centralized controller 40 are divided into a network NW1 and a network NW2 through a router 92, respectively. Yes.

  The details will be described below with reference to flowcharts and explanatory diagrams.

  FIG. 3 shows a schematic flowchart of address automatic setting.

  First, the flow is started by turning on the power.

  In step S10, private IP addresses are automatically assigned from the routers 91 and 92 to the air conditioners.

  In step S <b> 20, the respective device information is transmitted from each air conditioner to the server 70.

  In step S30, a refrigerant system detection process is performed.

  In step S40, the indoor unit connection is confirmed.

  The address automatic setting is performed as described above. Hereinafter, details will be described in order for each step.

(IP address automatic assignment)
FIG. 4 shows a flowchart regarding automatic assignment of IP addresses.

  Here, a private IP address is assigned to each air conditioner using the DHCP function.

  In step S11, each air conditioner having an ID in advance transmits a signal requesting a private IP address by broadcasting to the network (network NW1, NW2) to which the air conditioner belongs.

  In step S12, the routers 91 and 92 belonging to the same network that receives the signal requesting the private IP address assign candidate private IP addresses to the air conditioners from the private IP addresses held by the routers 91 and 92. Reply to.

  In step S13, each air conditioner transmits a private IP address acquisition request signal.

  In step S14, a private IP address assignment notification is returned from each of the routers 91 and 92 to each air conditioner, and a private IP address associated with the ID is assigned to each air conditioner.

  Here, in the state where the address is assigned to each air conditioner, for example, as shown in FIG. 8, a private IP address based on IPv4 of 32 binary numbers in which 8 binary digits are expressed by decimal numbers is given. ing. A private IP address based on IPv6 expressed in binary 128 digits may be given.

(Collecting device information)
FIG. 2 shows a schematic sequence diagram of collection and distribution of device information by server connection.

  FIG. 5 shows a flowchart of device information collection and distribution processing by connecting to the server 70.

  In step S21, each air conditioner transmits device information to the server 70 via the Internet IN. Here, the router 91 converts the private IP address assigned to each air conditioner into a global IP address. In this transmission, the router 91 converts the IP address and the port number so that each air conditioner can send device information to the server 70 while using one global IP address.

  In step S22, the server 70 creates a device information table based on the device information transmitted from each air conditioning device. Here, as the device information table, for example, as shown in FIG. 13, for each of the outdoor units 50 and 60 and the indoor units 51, 52, 53, 61, 62 and 63, Information indicating whether it is a device, an ID (MAC address), an IP address automatically assigned in step S10, a network address, data specifying a parent device of the outdoor unit, and the like. Among these, the network address is an address corresponding to each of the networks NW1 and NW2, the network address corresponding to the network NW1 is 192.168.10, and the network address corresponding to the network NW2 is 192.168.20. is there.

  In step S23, a device information table is created and standby is performed until device information can be acquired from all air conditioning devices. Here, the server 70 completes the creation of the device information table. The equipment information table here is, for example, as shown in FIG. 13, and each piece of equipment information of the outdoor units 50, 60 and indoor units 51, 52, 53, 61, 62, 63 (the self is the outdoor A list of whether the unit is an indoor unit or an indoor unit / ID (MAC address) / private IP address / network address, etc.) and trial operation instruction data such as designating a parent outdoor unit. Since the device information includes information indicating whether the device is an indoor unit or an outdoor unit in this way, each air conditioner stores the device information table so that the other party performing IP communication It becomes possible to grasp whether it is an indoor unit or an outdoor unit.

  In step S24, the created device information table is distributed to each air conditioner. Here, a firewall is provided in the router 91 in order to prevent illegal intrusion. For this reason, first, the air conditioner transmits a signal requesting the device information table to the server 70, and the server 70 returns the device information table to the air conditioner. In this method, the router 91 converts the IP address and port number. By performing this communication separately for each air conditioner, a device information table is distributed to each air conditioner.

  Here, in a state in which the device information table is distributed to each air conditioner, for example, a network that allows each air conditioner to communicate with each other using a private IP address as shown in FIG. 9 is constructed.

  Note that these communications can be realized by using NAT traversal technology as shown in FIG.

(System detection processing)
FIG. 6 shows a flowchart of processing for identifying and identifying a plurality of refrigerant systems that exist in the air conditioning system 100.

  In the system detection processing here, for example, as shown in FIG. 15, the indoor units 51, 52, and 53 are connected to the outdoor unit 50 via the refrigerant pipe D <b> 1 to form one refrigerant system. When the outdoor units 61, 62, and 63 are connected to the unit 60 via the refrigerant pipe D2 to form one refrigerant system, the server 70 and the like automatically grasps information on these refrigerant systems. It is a process to do. Here, the refrigerant system is detected by the change in the detection value of the temperature sensor of each indoor unit when the operating state of each outdoor unit is changed one by one.

  Here, the configuration of a refrigerant circuit having an outdoor unit 50 and indoor units 51, 52, and 53, which are one refrigerant system, will be described with reference to FIG.

  The outdoor unit 50 includes a compressor 21, a four-way switching valve 22, an outdoor heat exchanger 23, an accumulator 24, an outdoor expansion valve 25, a receiver 26, an outdoor unit controller 27, an outdoor fan 28, a suction pressure sensor 29, and a discharge pressure sensor. 30, an intake temperature sensor 31, a discharge temperature sensor 32, an outdoor heat exchange temperature sensor 33, and an outdoor temperature sensor 36. The outdoor unit control device 27 controls the compressor 21, the outdoor fan 28, and the like according to values detected by various temperature sensors. Specifically, as shown in FIG. 17, the outdoor unit control device 27 includes an outdoor unit control unit 27a, a drive unit 27b, a storage unit 27c, and a communication unit 27d. Among these, the drive part 27b is connected so that a control signal can be transmitted with respect to the four-way switching valve 22 and the compressor 21. FIG. Further, a communication line for communicating with other air conditioners, the server 70, and the like extends from the communication unit 27d. The storage unit 27c stores programs for executing automatic IP address assignment, device information collection, system detection processing, indoor unit connection confirmation processing, and the like for automatic address setting.

  The indoor unit 51 includes an indoor heat exchanger 51a, an indoor fan 51b, an indoor expansion valve 51c, an indoor heat exchanger temperature sensor 51d, a liquid side temperature sensor 51e, a gas side temperature sensor 51f, and an indoor unit control device 71, respectively. is doing. The same applies to the indoor units 52 and 53, and the corresponding member numbers have the corresponding functions and will not be described. The indoor unit control devices 71, 72, and 73 perform air volume control and the like of the indoor fan 51b based on values detected by the liquid side temperature sensor 51e and the gas side temperature sensor 51f. Specifically, as shown in FIG. 17, the indoor unit control device 71 includes an indoor unit control unit 71a, a temperature sensor input unit 71b, a storage unit 71c, and a communication unit 71d. Among these, the temperature sensor input unit 71b is connected to various temperature sensors 51d, 51e, and 51f. In addition, a communication line for communicating with other air conditioners, the server 70, and the like extends from the communication unit 71d.

  The system detection process described below is performed according to the flow shown in FIG. 6 using the above configuration.

  In step S31, the server 70 confirms whether all the outdoor units 50 and 60 are in a stopped state. Here, if the stop state can be confirmed, the process proceeds to step S32. Here, in FIG. 18 showing the transition of the system detection process, the time period from turning on the power to confirming the stop is shown as section 1.

  In step S32, the detected value Ts of the indoor heat exchanger temperature sensors 51d, 52d, 53d... When the outdoor unit is in a stopped state is measured.

  In step S33, the operation of all the outdoor units 50 and 60 is started simultaneously. In FIG. 18 described above, the graphs of the outdoor unit 50 and the outdoor unit 60 are shown as rising all at once.

  In step S34, the start-up times of the outdoor units 50 and 60 that have started operating proceed simultaneously, and wait for the start-up time to elapse. In FIG. 18, this rise time has elapsed from the start of the operation of the outdoor unit 50 and the outdoor unit 60 until the interval 2 from when the detected values of the indoor heat exchanger temperature sensors 51d, 52d, 53d. In the subsequent section 3, a predetermined time is set in advance as a time during which the values detected by the liquid side temperature sensors 51e, 52e, 53e and the gas side temperature sensors 51f, 52f, 53f are constant. Therefore, here, whether or not the rising time has elapsed is determined by whether or not the predetermined time has elapsed since the start of operation.

  In Step S <b> 35, the operation of any one of the outdoor unit 50 and the outdoor unit 60 is stopped. Here, as shown in FIG. 18, the case where the outdoor unit 50 is stopped will be described as an example for explanation. Thus, by stopping the outdoor unit 50, the detected value of the indoor heat exchange temperature sensor of the indoor unit included in the refrigerant system of the outdoor unit 50 approaches the value measured in the operation stop state in step S32. To go.

  In step S36, the detected value Tg of the indoor heat exchanger temperature sensors 51d, 52d, 53d after the operation of the outdoor unit 50 is stopped is measured.

  In step S37, if the temperature difference between the value Ts measured in the operation stop state in step S32 and the value Tg measured in the operation state in step S36 is equal to or less than a detection threshold (preset), The indoor units 51, 52, 53 having the indoor heat exchanger temperature sensors 51d, 52d, 53d are assumed to belong to the same refrigerant system as the outdoor unit 50, respectively, and are targets to hold the same refrigerant system address. Detect as. This is processing performed in the time zone indicated by section 4 in FIG.

  In step S38, the same refrigerant system address (for example, the private IP address of the outdoor unit 50 here) is assigned to the outdoor unit 50 and indoor units 51, 52, 53 of the same refrigerant system detected in step S37. And remember. As described above, by using the private IP address of the outdoor unit of the system as the refrigerant system address, it is not necessary to create a new private IP address.

  In step S39, it is determined whether or not all the outdoor units 50 and 60 are stopped. If all the outdoor units 50 and 60 are stopped, the system detection process is terminated. If there is an outdoor unit in operation, the process proceeds to step Sag.

  In step Sag, one certain outdoor unit is stopped from among the outdoor units in operation. Here, for the purpose of explanation, the outdoor unit 60 that is the remaining outdoor unit in operation is stopped. And it transfers to step S36 and the indoor unit of the refrigerant | coolant system | strain of the outdoor unit 60 is similarly detected in the process mentioned above. This is processing performed in the time zone indicated by section 5 in FIG.

  Through the above processing, the refrigerant system is grasped and stored, and the server 70 or the like recognizes that the air conditioning system 100 has a network as shown in FIG. 10 and the refrigerant system.

(Confirmation of indoor unit connection)
FIG. 7 shows a flowchart of the indoor unit connection confirmation process when a private IP address is assigned to each air conditioner and the detection of the refrigerant system is completed.

  In step S41, a signal requesting a refrigerant system address is transmitted from the outdoor units 50 and 60.

  In step S42, a refrigerant system address response signal is returned from the indoor units 51, 52, 53 to the outdoor unit 50, and a refrigerant system address response signal is returned from the indoor units 61, 62, 63 to the outdoor unit 60. Is done.

  In step S43, the outdoor units 50 and 60 store the IP addresses of the indoor units in the same system.

  As a result, each of the outdoor units 50 and 60 and the indoor units 51, 52, 53, 61, 62, and 63 grasps the connection relationship and the refrigerant system relationship as shown in FIG. 11 in association with the private IP address. be able to.

  In addition, each air conditioner will be in the state which can grasp | ascertain hierarchical self data as shown, for example in FIG. Also, these communications can be realized by using a technique beyond the broadcast router as shown in FIG.

  Thus, the address setting process for each refrigerant system is completed.

<Characteristics of the air conditioning system 100 according to the present embodiment>
In the conventional air conditioning system, for example, as shown in FIG. 19, the outdoor unit and the indoor unit, or the indoor units are connected to each other by a dedicated communication line, so that they are connected by a communication line. No air conditioning equipment can communicate directly.

  Also, as shown in FIG. 20, when each air conditioner is connected by a network, the data is transmitted to all the air conditioners connected to the network by one data transmission. Has occurred.

  On the other hand, in the air conditioning system 100 of the present embodiment, the air conditioners such as the outdoor units 50 and 60, the indoor units 51, 52, 53, 61, 62, and 63, and the centralized controller 40 are connected to the plurality of networks NW1 and NW2. Even in the case where the connection is made across the routers, the server 70 uses the routers 91 and 92 to transmit the device information in which the respective IDs are associated with the private IP addresses given by the routers 91 and 92 from the respective air conditioning devices. Can be collected through And the server 70 can produce | generate the apparatus information table which put these together, and can distribute to each air conditioning apparatus. Thus, each air conditioner to which the device information table is distributed can store this device information table.

  As a result, address setting can be performed automatically, and each air conditioner can store the information table to perform IP communication between the air conditioners.

<Modification of Air Conditioning System 100>
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.

  In the above embodiment, the air conditioning system 100 in which the server 70 that creates the device information table and sends it to each air conditioning device is connected to the air conditioning device via the Internet IN has been described as an example.

  However, the present invention is not limited to this. For example, as an apparatus that creates a device information table and sends it to each air conditioner, it is not necessarily connected to the air conditioner via the Internet IN. For example, it may be connected via Ethernet (registered trademark) as a local network. Even in this case, it is possible to enable IP communication between air conditioners connected to different networks separated by a router.

  By using the present invention, it is possible to perform IP communication between air conditioners connected to different networks. In particular, between air conditioners of an air conditioning system configured by connecting a plurality of air conditioners. The communication method can be used.

The system schematic block diagram concerning one Embodiment of this invention. The sequence diagram which shows the outline of collection and distribution processing of apparatus information. The general | schematic flowchart of a system setting. The flowchart of IP address automatic assignment. The flowchart of apparatus information collection. The flowchart of a system | strain detection process. The flowchart of the indoor unit connection confirmation. Explanatory drawing of the state to which the IP address was automatically given. Explanatory drawing of the state connected to the server in order to collect apparatus information. Explanatory drawing of system | strain detection. Explanatory drawing of the indoor unit connection confirmation. The system schematic block diagram which shows NAT traversal and router traversal. Explanatory drawing of an apparatus information table. Explanatory drawing of the information which each air-conditioning apparatus hold | maintains. Explanatory drawing for performing the system | strain detection process. Schematic of the refrigerant circuit which shows the relationship between the outdoor unit of 1 system | strain, and an indoor unit. The schematic block diagram of each control apparatus. The figure which shows transition of the temperature change by an operation stop. The block diagram of the air conditioning system by the conventional communication line. The block diagram of the air conditioning system by the conventional network.

40 Centralized controller, air conditioner 50 Outdoor unit, air conditioner 51, 52, 53 Indoor unit, air conditioner 60 Outdoor unit, air conditioner 61, 62, 63 Indoor unit, air conditioner 70 Server 100 Air conditioning system IN Internet NW1,2 Network

Claims (6)

A plurality of air conditioners (50, 51, 52, 53, 60, 61, 62, 63) connected to a plurality of networks (IN, NW1, NW2) separated by routers (91, 92) and having unique IDs A communication method between air conditioners that sets an address for each,
The router (91, 92) assigning an IP address to each of the plurality of air conditioners;
Each of the plurality of air conditioners to which the IP address is assigned has associated with the device information that associates the unique ID possessed by the IP address with the assigned IP address via the router (91). )
The management device (70) creating an information table in which each piece of the device information transmitted from the plurality of air conditioning devices is collected;
The management device (70) transmitting the information table to each of the plurality of air conditioners via the router (91);
Each of the plurality of air conditioners storing the information table;
The air conditioners connected to the different networks (IN, NW1, NW2) transmit information to the air conditioners connected to the partner network using the information table via the router. To perform communication, and
A method for communication between air conditioning equipment. The device information includes information indicating whether the air conditioner is an indoor unit (51, 52, 53, 61, 62, 63) or an outdoor unit (50, 60).
The communication method between the air-conditioning apparatuses of Claim 1. The device information includes information indicating the affiliation of the network (NW1, NW2).
The communication method between the air-conditioning equipment of Claim 2. The management device (70) is a server connected to the air conditioning equipment via at least the Internet (IN).
The communication method between the air-conditioning apparatuses of any one of Claim 1 to 3. A plurality of air conditioners (50, 51, 52, 53, 60, 61, 62, 63) connected to a plurality of networks (IN, NW1, NW2) and having unique IDs;
Routers (91, 92) that divide the plurality of networks (IN, NW1, NW2) and assign IP addresses to the plurality of air conditioners;
Each of the plurality of air conditioners receives device information in which the assigned IP address and the ID are associated with each other by being accessed via the router (91, 92), and collects the device information together. A management device (70) that creates the information table and transmits the information table to the plurality of air conditioners;
With
Each of the plurality of air conditioners can store the information table,
The air conditioners connected to the different networks (IN, NW1, NW2) transmit information to the air conditioners connected to the partner network using the information table via the router. To communicate ,
A communication system (100) between air conditioners. A plurality of air conditioners (50, 51, 52, 53, 60, 61, 62, 63) connected to a plurality of networks (IN, NW1, NW2) separated by routers (91, 92) and having unique IDs A communication program between air conditioners that sets an address for each.
Causing the router (91, 92) to assign an IP address to each of the plurality of air conditioners;
A plurality of air conditioners to which the IP address is assigned are associated with device information in which the unique ID possessed by the IP address and the assigned IP address are associated with each other via the router (91). )
Causing the management device (70) to create an information table in which each of the device information transmitted from the plurality of air conditioners is collected;
Sending the information table to each of the plurality of air conditioners via the router (91) to the management device (70);
Storing the information table in each of the plurality of air conditioners;
The air conditioners connected to the different networks (IN, NW1, NW2) transmit information to the air conditioners connected to the partner network using the information table via the router. To perform communication, and
Communication program between air conditioners equipped with

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