WO2022176356A1 - 更新装置、室内外機、更新システム、更新方法およびプログラム - Google Patents
更新装置、室内外機、更新システム、更新方法およびプログラム Download PDFInfo
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- WO2022176356A1 WO2022176356A1 PCT/JP2021/046171 JP2021046171W WO2022176356A1 WO 2022176356 A1 WO2022176356 A1 WO 2022176356A1 JP 2021046171 W JP2021046171 W JP 2021046171W WO 2022176356 A1 WO2022176356 A1 WO 2022176356A1
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- indoor
- outdoor units
- instruction
- update
- communication frequency
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- 238000000034 method Methods 0.000 title claims description 19
- 238000004891 communication Methods 0.000 claims abstract description 136
- 230000009467 reduction Effects 0.000 claims abstract description 22
- 238000011084 recovery Methods 0.000 claims description 17
- 230000005856 abnormality Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 6
- 238000004378 air conditioning Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- 230000006870 function Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 230000015654 memory Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 240000001973 Ficus microcarpa Species 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
Definitions
- the present disclosure relates to an update device, an indoor/outdoor unit, an update system, an update method, and a program.
- the program may be updated to add or change functions.
- the communication line that connects the outdoor unit and indoor unit that make up the air conditioner hereinafter, the outdoor unit and the indoor unit are also collectively referred to as "indoor/outdoor unit" in the update work of this program,
- a technology is known that allows easy updating of a program (see, for example, Patent Document 1).
- Patent Document 2 describes an air conditioner that executes automatic program update processing when the conditions of "a person in the room is not detected” and "the air conditioning is not being operated” are met.
- a harmonizer is disclosed.
- the above communication line is originally used for exchanging control signals between indoor and outdoor units that are in operation. Therefore, when indoor/outdoor units other than the indoor/outdoor unit targeted for program update are in operation, it takes time to update the program due to the influence of control signal traffic exchanged using the same communication line. It is assumed that it will be lost.
- An object of the present disclosure is to provide an update device, an indoor/outdoor unit, an update system, an update method, and a program capable of shortening the update time of the program of the indoor/outdoor unit.
- An updating device of the present disclosure is a device connected to a communication line connecting a plurality of indoor and outdoor units, and transmits and receives information to and from the plurality of indoor and outdoor units via the communication line for the plurality of indoor and outdoor units.
- a reduction instruction unit that transmits an instruction to reduce the communication frequency of the control signal that is used, an update processing unit that performs program update processing for the target indoor and outdoor units, and for a plurality of indoor and outdoor units, the above and a recovery instruction unit that transmits an instruction to recover the communication frequency of the control signal.
- the indoor/outdoor unit of the present disclosure includes a control signal transmitting/receiving unit that transmits/receives a control signal at a predetermined communication frequency with an external indoor/outdoor unit or a centralized controller via a communication line, and the communication line. for reducing the communication frequency of the control signal when receiving an instruction to reduce the communication frequency of the control signal via the communication line, and for recovering the communication frequency of the control signal via the communication line and a communication frequency changing unit that recovers the communication frequency of the control signal when the instruction is received.
- the update system of the present disclosure includes the update device described above and the indoor/outdoor unit described above.
- an update method of the present disclosure is an update method for updating a program using an update device connected to a communication line connecting a plurality of indoor and outdoor units, wherein the plurality of indoor and outdoor units are connected to the communication line a step of transmitting an instruction to reduce the communication frequency of control signals transmitted and received between the plurality of indoor and outdoor units via a step of performing a program update process for the target indoor and outdoor units; and transmitting an instruction to restore the communication frequency of the control signal to a plurality of indoor and outdoor units.
- the program of the present disclosure is transmitted and received between the plurality of indoor and outdoor units via the communication line to the update device connected to the communication line that connects the plurality of indoor and outdoor units. a step of transmitting an instruction to reduce the communication frequency of the control signal to be sent; a step of performing a program update process for the target indoor and outdoor units; and communicating the control signal to a plurality of indoor and outdoor units and sending instructions to restore frequency.
- FIG. 1 is a diagram showing the overall configuration of an update system according to a first embodiment
- FIG. FIG. 1 is a first diagram showing the functional configuration of an update device according to the first embodiment
- FIG. 2 is a second diagram showing the functional configuration of the updating device according to the first embodiment
- It is a figure which shows the functional structure of the indoor/outdoor unit which concerns on 1st Embodiment.
- It is a figure which shows the processing flow of the update apparatus which concerns on 1st Embodiment, and an indoor/outdoor unit.
- FIG. 4 is a diagram for explaining the contents of processing by the updating device and the indoor/outdoor unit according to the first embodiment;
- FIG. 1 is a diagram showing the overall configuration of an update system according to the first embodiment.
- the update system 9 is a system for updating the control programs of the outdoor units 11a, 11b and the indoor units 11c, 11d, 11e that constitute the air conditioning system 1.
- FIG. The update system 9 includes an air conditioning system 1 including a centralized controller 10 and a plurality of indoor/outdoor units 11 (outdoor units 11a, 11b and indoor units 11c, 11d, and 11e), and an update device 2.
- the air conditioning system 1 will be explained.
- the air conditioning system 1 is, for example, a commercial package air conditioner installed in a building or the like.
- the air conditioning system 1 has a centralized controller 10, and a plurality of outdoor units 11a, 11b and indoor units 11c, 11d, 11e.
- the plurality of outdoor units 11a, 11b and the indoor units 11c, 11d, 11e are collectively referred to as the indoor/outdoor unit 11 as well.
- the centralized controller 10 is a control panel that centrally controls the operations of the indoor and outdoor units 11 .
- the indoor/outdoor units 11 are connected through a common refrigerant pipe (not shown), and achieve indoor air conditioning by heat exchange via the refrigerant flowing through the refrigerant pipe.
- the indoor/outdoor unit 11 operates according to operation commands (cooling/heating operation, set temperature, etc.) given by the centralized controller 10 .
- each component of the air conditioning system 1 (the centralized controller 10 and the indoor/outdoor unit 11) is connected to a single communication line L so that they can communicate with each other.
- the centralized controller 10 and the indoor/outdoor unit 11 in operation exchange control signals with each other via the communication line L at regular intervals (for example, intervals of 1 second).
- the control signal is an operation command for each indoor/outdoor unit 11 (cooling/heating operation, set temperature, etc.) and a signal indicating the individual state of the indoor/outdoor unit 11 (abnormality detection signal, etc.).
- the update device 2 is a terminal device used when updating the control program of the indoor/outdoor unit 11 that configures the air conditioning system 1 .
- the update device 2 may be, for example, a portable notebook PC or tablet terminal.
- a worker (serviceman) in charge of the air conditioning system 1 connects the updating device 2 to the communication line L when updating the control program of each indoor/outdoor unit 11 .
- the operator designates one of the indoor/outdoor units 11 whose control program is to be updated through the update device 2, and executes update processing to a new control program.
- control program for the indoor/outdoor unit 11 in operation cannot be updated. Therefore, the operator designates the indoor/outdoor unit 11 that is not in operation (during rest) as a control program update target.
- the operator designates the indoor unit 11c as a control program update target.
- control signals are exchanged via the communication line L.
- the updating device 2 has a configuration as a general terminal device. That is, the update device 2 includes a CPU 20 , a memory 21 , an output means 22 such as a display, an input means 23 such as a mouse, keyboard, touch pad, etc., a communication interface 24 and a recording medium 25 .
- the communication interface 24 of the update device 2 can be connected to an external connection terminal of the communication line L (FIG. 1).
- the recording medium 25 stores a control program for update and the like.
- the CPU 20 functions as a reduction instructing section 200, an update processing section 201, and a recovery instructing section 202 by operating according to a predetermined program prepared in advance.
- the reduction instruction unit 200 instructs the plurality of indoor/outdoor units 11 and the centralized controller 10 to reduce the communication frequency of control signals transmitted/received between the plurality of indoor/outdoor units via the communication line L (hereinafter referred to as , also referred to as a reduction instruction).
- the update processing unit 201 updates the control program for the target indoor/outdoor unit 11 .
- the recovery instruction unit 202 instructs the plurality of indoor/outdoor units 11 and the centralized controller 10 to recover the communication frequency of control signals transmitted and received between the plurality of indoor/outdoor units via the communication line L (hereinafter referred to as , also referred to as a recovery instruction).
- FIG. 4 is a diagram showing the functional configuration of the indoor/outdoor unit according to the first embodiment. Next, functions of the indoor/outdoor unit 11 will be described with reference to FIG. As shown in FIG. 4 , the CPU 110 of the indoor/outdoor unit 11 functions as a control signal transmitter/receiver 1100 , an instruction receiver 1101 and a communication frequency changer 1102 .
- the control signal transmitting/receiving unit 1100 transmits/receives control signals to/from the external indoor/outdoor unit 11 or the centralized controller 10 via the communication line L during operation at a predetermined communication frequency.
- the instruction receiving unit 1101 receives the aforementioned reduction instruction or recovery instruction from the update device 2 via the communication line L.
- FIG. The communication frequency change unit 1102 changes the communication frequency of the control signal according to the reduction instruction or recovery instruction received from the update device 2 via the communication line L.
- FIG. Specifically, the communication frequency changing unit 1102 reduces the communication frequency of the control signal when receiving a reduction instruction from the update device 2 . Further, when a recovery instruction is received from the update device 2, the communication frequency of the control signal is recovered to the communication frequency before reduction.
- FIG. 5 is a diagram showing the processing flow of the update device 2 and the indoor/outdoor unit 11 according to the first embodiment.
- FIG. 6 is a diagram for explaining the contents of processing of the update device 2 and the indoor/outdoor unit 11 according to the first embodiment.
- the processing flow of the updating device 2 and the indoor/outdoor unit 11 will be described in detail with reference to FIGS. 5 and 6.
- FIG. 5 is a diagram showing the processing flow of the update device 2 and the indoor/outdoor unit 11 according to the first embodiment.
- FIG. 6 is a diagram for explaining the contents of processing of the update device 2 and the indoor/outdoor unit 11 according to the first embodiment.
- each of the centralized controller 10 or the plurality of indoor/outdoor units 11 operates at an interval of time t1 via the same communication line L by time division multiplexing. This indicates that the control signal is being transmitted through the As shown in the upper part of FIG. 6, the centralized controller 10 and the indoor and outdoor units 11 normally transmit control signals at intervals of time t1 (for example, 1 second).
- the lower diagram in FIG. 6 shows that the control signal is being transmitted through the upper part of FIG. 6, the centralized controller 10 and the indoor and outdoor units 11 normally transmit control signals at intervals of time t1 (for example, 1 second).
- control program transmission/reception unit 1100 controls the centralized controller 10 or each of the plurality of indoor and outdoor units 11 (control signal transmission/reception unit 1100) performs the same communication at an interval of time t2 by time division multiplexing. It shows that the control signal is being transmitted via the line L. As shown in the lower part of FIG. 6, when the control program is updated, the centralized controller 10 and the indoor/outdoor units 11 steadily generate control signals at intervals of time t2 (for example, 5 seconds) longer than time t1. is sent.
- the processing flow shown in FIG. 5 is executed when the update device 2 starts updating the control program for the target indoor/outdoor unit 11 (the indoor unit 11c whose operation is suspended).
- the reduction instruction unit 200 of the update device 2 transmits a reduction instruction to the centralized controller 10 and all the indoor and outdoor units 11 via the communication line L (step S01).
- the centralized controller 10 and each indoor/outdoor unit 11 receive the reduction instruction (step S11).
- the centralized controller 10 and each indoor/outdoor unit 11 reduce the communication frequency of the control signal (step S12).
- the communication frequency of the control signal via the communication line L is reduced from time t1 to time t2 (t1 ⁇ t2 (for example, 5 seconds)). is changed to That is, the frequency of communication of the control signal through the communication line L is reduced while the control program of the indoor unit 11c is being updated.
- the update processing unit 201 of the update device 2 executes program update processing for the indoor unit 11c via the communication line L (step S02). Thereby, the control program of the indoor unit 11c is updated.
- the recovery instruction unit 202 of the update device 2 transmits a recovery instruction to the centralized controller 10 and all the indoor/outdoor units 11 via the communication line L. (Step S03).
- the centralized controller 10 and each indoor/outdoor unit 11 receive the recovery instruction (step S13).
- the centralized controller 10 and the indoor and outdoor units 11 restore the communication frequency of the control signal to the original state (state before reduction) (step S14).
- controllability of the indoor/outdoor unit 11 in operation is reduced. is damaged.
- the communication frequency of the control signal is reduced, the exchange of the control signal is maintained at a constant communication frequency. It is possible to suppress that the controllability for is impaired.
- the updating system 9 according to the first embodiment has been described as reducing the communication frequency of all control signals exchanged via the communication line L, other embodiments are not limited to this aspect. .
- a specific control signal is exchanged at the normal communication frequency even while the control program is being updated. It may be assumed that Specifically, while the update system 9 according to another embodiment is performing update processing of the control program, the abnormality detection signal indicating a defect requiring prompt countermeasures (protection operation) is normally communicated. The frequency may be maintained and the communication frequency of other control signals may be reduced.
- the control signal transmitting/receiving unit 1100 transmits an abnormality detection signal (abnormality detection signal). Only the communication frequency of the control signal indicating presence/absence) may not be reduced.
- update device 2 has been described as transmitting a reduction instruction and a recovery instruction also to the centralized controller 10, other embodiments are not limited to this aspect. That is, the update device 2 according to another embodiment may be configured to transmit the reduction instruction and the recovery instruction only to the indoor/outdoor unit 11 connected to the communication line L.
- the process of various processes of the updating device 2 and the indoor/outdoor unit 11 is stored in the form of a program in a computer-readable recording medium.
- Computer-readable recording media include magnetic disks, magneto-optical disks, CD-ROMs, DVD-ROMs, semiconductor memories, and the like.
- the computer program may be distributed to a computer via a communication line, and the computer receiving the distribution may execute the program.
- the above program may be for realizing part of the functions described above. Furthermore, it may be a so-called difference file (difference program) that can realize the above functions by combining with a program already recorded in the computer system.
- difference file difference program
- the update device 2 is a device connected to a communication line L that connects a plurality of indoor and outdoor units 11, and is connected to the plurality of indoor and outdoor units 11 via the communication line L.
- a reduction instruction unit 200 that transmits an instruction to reduce the communication frequency of control signals transmitted and received between the plurality of indoor and outdoor units 11, and performs program update processing for the target indoor and outdoor units 11
- An update processing unit 201 and a recovery instruction unit 202 that transmits an instruction to recover the communication frequency of the control signal to the plurality of indoor and outdoor units 11 .
- the update device 2 according to the second aspect is the update device 2 of (1), and the reduction instruction unit 200 further provides the centralized controller 10 connected to the communication line L with An instruction to reduce the communication frequency may be transmitted.
- the update device 2 is the update device 2 of (1) or (2), wherein the recovery instruction unit 202 further includes a centralized controller connected to the communication line L 10, an instruction to restore the communication frequency.
- the indoor/outdoor unit 11 transmits and receives a control signal at a predetermined communication frequency with the external indoor/outdoor unit 11 or the centralized controller 10 via the communication line L.
- a control signal at a predetermined communication frequency with the external indoor/outdoor unit 11 or the centralized controller 10 via the communication line L.
- the indoor/outdoor unit 11 according to the fifth aspect is the indoor/outdoor unit 11 of (4), wherein the communication frequency changing unit 1102 receives an instruction to reduce the communication frequency of the control signal. Even in this case, the communication frequency of the abnormality detection signal, which is a control signal indicating the presence or absence of an abnormality among the control signals, may not be reduced.
- the updating system 9 includes the updating device 2 according to any one of (1) to (3) and the indoor/outdoor unit 11 according to (4) or (5).
- An update method is an update method for updating a program using an update device 2 connected to a communication line L that connects a plurality of indoor and outdoor units 11. a step of transmitting an instruction to the indoor/outdoor unit 11 to reduce the communication frequency of control signals transmitted/received between the plurality of indoor/outdoor units 11 via the communication line L; and a step of transmitting an instruction for restoring the communication frequency of the control signal to the plurality of indoor and outdoor units 11 .
- the program according to the eighth aspect is provided in the update device 2 connected to the communication line L connecting the plurality of indoor and outdoor units 11 to the plurality of indoor and outdoor units 11 via the communication line L.
- the present disclosure relates to an update device, an indoor/outdoor unit, an update system, an update method, and a program. According to the present disclosure, it is possible to shorten the update time of the programs of the indoor and outdoor units.
- Air Conditioning System 10 Centralized Controller 11 Indoor/Outdoor Units 11a, 11b Outdoor Units 11c, 11d, 11e Indoor Unit 110
- CPU 1100 Control signal transmission/reception unit 1101
- Instruction reception unit 1102 Communication frequency change unit 2
- Update device 20 CPU 200 reduction instruction unit 201 update processing unit 202 recovery instruction unit 21 memory 22 output means 23 input means 24 communication interface 25 recording medium 9 update system L communication line
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Abstract
Description
本願は、2021年2月22日に日本に出願された特願2021-025887号について優先権を主張し、その内容をここに援用する。
以下、第1の実施形態に係る更新システムについて、図1~図6を参照しながら詳しく説明する。
図1は、第1の実施形態に係る更新システムの全体構成を示す図である。
図1に示すように、更新システム9は、空調システム1を構成する室外機11a、11bおよび室内機11c、11d、11eの制御プログラムを更新するためのシステムである。
更新システム9は、集中制御器10および複数の室内外機11(室外機11a、11bおよび室内機11c、11d、11e)を含む空調システム1と、更新装置2とを備えている。
空調システム1は、例えば、ビルなどに設置される業務用のパッケージエアコンである。空調システム1は、集中制御器10と、複数の室外機11a、11bおよび室内機11c、11d、11eとを有している。以下、複数の室外機11a、11bおよび室内機11c、11d、11eを総称して室内外機11とも表記する。
室内外機11は、共通の冷媒配管(図示せず)を通じて接続されるとともに、当該冷媒配管を巡る冷媒を介した熱交換により室内空調を実現する。室内外機11は、集中制御器10によって与えられた運転指令(冷暖房運転、設定温度など)に従って動作する。
通常、集中制御器10および運転中の室内外機11は、通信回線Lを介して、一定間隔(例えば、1秒間隔)で互いに制御信号をやり取りする。制御信号とは、具体的には、各室内外機11に対する運転指令(冷暖房運転、設定温度など)や室内外機11の個々の状態を示す信号(異常検知信号など)である。空調システム1は、このような制御信号を各構成機器間で常時送受信することで、例えば、設定温度などの変更があった場合には直ちに運転に反映することができ、また、異常が発生した場合には直ちに保護動作(緊急停止など)を実行することができる。
更新装置2は、空調システム1を構成する室内外機11の制御プログラムの更新を行う際に用いる端末装置である。更新装置2は、例えば、持ち運び可能なノート型PCまたはタブレット端末などであってよい。空調システム1を担当する作業者(サービスマン)は、各室内外機11の制御プログラムの更新を行うにあたり、更新装置2を、通信回線Lに接続する。そして、作業者は、更新装置2を通じて、制御プログラムの更新対象とする室内外機11を1つ指定し、新たな制御プログラムへの更新処理を実行する。
図2、図3は、第1の実施形態に係る更新装置の機能構成を示す図である。
図2に示すように、更新装置2は、一般的な端末装置としての構成を有する。即ち、更新装置2は、CPU20と、メモリ21と、ディスプレイなどの出力手段22と、マウス、キーボード、タッチパッドなどの入力手段23と、通信インタフェース24と、記録媒体25とを備える。
本実施形態において、更新装置2の通信インタフェース24は、通信回線L(図1)の外部接続端子に接続可能とされる。また、記録媒体25には、更新用の制御プログラムなどが格納される。
CPU20は、予め用意された所定のプログラムに従って動作することで低減指示部200、更新処理部201および回復指示部202としての機能を発揮する。
図4は、第1の実施形態に係る室内外機の機能構成を示す図である。
次に、図4を参照しながら、室内外機11の機能について説明する。
図4に示すように、室内外機11のCPU110は、制御信号送受信部1100、指示受信部1101および通信頻度変更部1102としての機能を発揮する。
指示受信部1101は、通信回線Lを介して、更新装置2から上述の低減指示または回復指示を受信する。
通信頻度変更部1102は、通信回線Lを介して、更新装置2から受け付けた低減指示または回復指示に応じて、制御信号の通信頻度を変更する。具体的には、通信頻度変更部1102は、更新装置2から低減指示を受け付けた場合に、制御信号の通信頻度を低減させる。また、更新装置2から回復指示を受け付けた場合に、制御信号の通信頻度を、低減前の通信頻度に回復させる。
図5は、第1の実施形態に係る更新装置2および室内外機11の処理フローを示す図である。
また、図6は、第1の実施形態に係る更新装置2および室内外機11の処理の内容を説明するための図である。
以下、図5および図6を参照しながら、更新装置2および室内外機11の処理フローについて詳しく説明する。
図6上側の図は、通常時において、集中制御器10または複数の室内外機11(制御信号送受信部1100)それぞれが、時間t1の間隔で、時分割多重方式により同一の通信回線Lを介して制御信号を送信していることを示している。図6上側に示すように、通常時においては、集中制御器10および各室内外機11は、時間t1(例えば1秒)の間隔で、定常的に制御信号の送信を行う。
図6下側の図は、制御プログラムの更新時において、集中制御器10または複数の室内外機11(制御信号送受信部1100)それぞれが、時間t2の間隔で、時分割多重方式により同一の通信回線Lを介して制御信号を送信していることを示している。図6下側に示すように、制御プログラムの更新時においては、集中制御器10および各室内外機11は、時間t1よりも長い時間t2(例えば5秒)の間隔で、定常的に制御信号の送信を行う。
このとき、集中制御器10および各室内外機11は、低減指示を受信する(ステップS11)。集中制御器10および各室内外機11は、低減指示を受信したことにより、制御信号の通信頻度を低減させる(ステップS12)。これにより、図6に示すように、室内機11cの制御プログラム更新中においては、通信回線Lを介して行われる制御信号の通信頻度が時間t1から時間t2(t1<t2(例えば5秒))に変更される。すなわち、室内機11cの制御プログラム更新中においては、通信回線Lを介して行われる制御信号の通信頻度が低減される。
このとき、集中制御器10および各室内外機11は、回復指示を受信する(ステップS13)。集中制御器10および各室内外機11は、回復指示を受信したことにより、制御信号の通信頻度を元の状態(低減する前の状態)に回復させる(ステップS14)。
以上に説明した更新システム9によれば、休止中の1つの室内外機11に対し制御プログラムの更新処理を行う場合、他の運転中の室内外機11および集中制御器10それぞれが行う制御信号のやり取りの通信頻度が低減される。そうすると、図6に示すように、通信回線Lは、制御信号のやり取りに割り当てられる時間が減少し、その分、制御プログラムの更新処理に必要な通信に割り当てられる時間が増加する。換言すると、通信回線Lにおける制御信号のトラフィックが減少する分、同じ通信回線Lを介して行われる制御プログラムの更新処理にかかる時間を短縮することができる。
他方、制御プログラムの更新処理時において、運転中の室内外機11および集中制御器10の間で制御信号のやり取りを全く行わないようにしてしまうと、当該運転中の室内外機11に対する制御性が損なわれてしまう。しかし、本実施形態によれば、制御信号の通信頻度が低減されるものの、一定の通信頻度で制御信号のやり取りが維持されるので、制御プログラムの更新処理時において、運転中の室内外機11に対する制御性が損なわれることを抑制することができる。
なお、第1の実施形態に係る更新システム9は、通信回線Lを介してやり取りされる全ての制御信号の通信頻度を低減するものとして説明したが、他の実施形態においてはこの態様に限定されない。
例えば、他の実施形態においては、通信回線Lを介してやり取りされる複数の制御信号のうち特定の制御信号については、制御プログラムの更新処理を行っている間においても通常通りの通信頻度でやり取りするものとしてもよい。
具体的には、他の実施形態に係る更新システム9は、制御プログラムの更新処理を行っている間、迅速な対処(保護動作)を必要とする不具合を示す異常検知信号については通常通りの通信頻度を維持し、それ以外の制御信号の通信頻度を低減するものとしてもよい。換言すると、他の実施形態に係る通信頻度変更部1102は、更新装置2から低減指示を受け付けた場合であっても、制御信号送受信部1100が送信する制御信号のうち、異常検知信号(異常の有無を示す制御信号)の通信頻度だけは低減させないようにしてもよい。
すなわち、他の実施形態に係る更新装置2は、通信回線Lに接続されている室内外機11に対してのみ低減指示および回復指示を送信する態様であってもよい。
各実施形態に記載の更新装置2、室内外機11、更新システム9、更新方法およびプログラムは、例えば以下のように把握される。
本開示によれば、室内外機のプログラムの更新時間を短縮できる。
10 集中制御器
11 室内外機
11a、11b 室外機
11c、11d、11e 室内機
110 CPU
1100 制御信号送受信部
1101 指示受信部
1102 通信頻度変更部
2 更新装置
20 CPU
200 低減指示部
201 更新処理部
202 回復指示部
21 メモリ
22 出力手段
23 入力手段
24 通信インタフェース
25 記録媒体
9 更新システム
L 通信回線
Claims (8)
- 複数の室内外機を接続する通信回線に接続される装置であって、
複数の室内外機に対し、前記通信回線を介して前記複数の室内外機の間で送受信される制御信号の通信頻度を低減させるための指示を送信する低減指示部と、
対象とする室内外機に対してプログラムの更新処理を行う更新処理部と、
複数の室内外機に対し、前記制御信号の通信頻度を回復させるための指示を送信する回復指示部と、
を備える更新装置。 - 前記低減指示部は、更に、前記通信回線に接続されている集中制御器に対し、前記通信頻度を低減させるための指示を送信する
請求項1に記載の更新装置。 - 前記回復指示部は、更に、前記通信回線に接続されている集中制御器に対し、前記通信頻度を回復させるための指示を送信する
請求項1または請求項2に記載の更新装置。 - 通信回線を介して外部の室内外機または集中制御器との間で、所定の通信頻度で制御信号の送受信を行う制御信号送受信部と、
前記通信回線を介して、前記制御信号の通信頻度を低減させるための指示を受け付けた場合に前記制御信号の通信頻度を低減させ、かつ、
前記通信回線を介して、前記制御信号の通信頻度を回復させるための指示を受け付けた場合に前記制御信号の通信頻度を回復させる通信頻度変更部と、
を備える室内外機。 - 前記通信頻度変更部は、
前記制御信号の通信頻度を低減させるための指示を受け付けた場合であっても、前記制御信号のうち、異常の有無を示す制御信号である異常検知信号の通信頻度を低減させないようにする
請求項4に記載の室内外機。 - 請求項1から請求項3のいずれか一項に記載の更新装置と、
請求項4または請求項5に記載の室内外機と、
を備える更新システム。 - 複数の室内外機を接続する通信回線に接続される更新装置を用いてプログラムの更新を行う更新方法であって、
複数の室内外機に対し、前記通信回線を介して前記複数の室内外機の間で送受信される制御信号の通信頻度を低減させるための指示を送信するステップと、
対象とする室内外機に対してプログラムの更新処理を行うステップと、
複数の室内外機に対し、前記制御信号の通信頻度を回復させるための指示を送信するステップと、
を有する更新方法。 - 複数の室内外機を接続する通信回線に接続される更新装置に、
複数の室内外機に対し、前記通信回線を介して前記複数の室内外機の間で送受信される制御信号の通信頻度を低減させるための指示を送信するステップと、
対象とする室内外機に対してプログラムの更新処理を行うステップと、
複数の室内外機に対し、前記制御信号の通信頻度を回復させるための指示を送信するステップと、
を実行させるプログラム。
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