WO2005067096A1 - 設備機器の制御装置 - Google Patents
設備機器の制御装置 Download PDFInfo
- Publication number
- WO2005067096A1 WO2005067096A1 PCT/JP2004/019499 JP2004019499W WO2005067096A1 WO 2005067096 A1 WO2005067096 A1 WO 2005067096A1 JP 2004019499 W JP2004019499 W JP 2004019499W WO 2005067096 A1 WO2005067096 A1 WO 2005067096A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- communication
- equipment
- facility
- air
- controller
- Prior art date
Links
Classifications
-
- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
-
- 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
Definitions
- the present invention relates to a control device for equipment.
- the air conditioning system shown in Fig. 1 mainly consists of a central monitoring panel for building management (upper system) 12, an air handling unit (hereinafter abbreviated as air handling) 14, and a VAV (Variable Air Volume) 16 Consists of The building management central monitoring panel 12 and the air han 14 are connected via an open-net compatible communication line 10, and the VAV 16 is connected to the air han 14 via a local communication line 20.
- An object of the present invention is to provide an air conditioning system such as that shown in FIG. 3 that a communication abnormality in a local communication line can be monitored without increasing the burden on the central monitoring panel for building management. It is an object of the present invention to provide a control device for facility equipment which can be monitored by a computer.
- a control device for equipment is a control device connected to a higher-level equipment management device by a first communication line of a predetermined equipment network to control the equipment, and includes a first communication connection.
- a second communication connection unit is a connection unit for performing the first communication with the equipment management device, and corresponds to the equipment network.
- the second communication connection unit is a connection unit for performing the second communication with the equipment, and corresponds to the equipment network.
- the communication error detection unit detects a communication error of the second communication.
- the communication abnormality detection information transmitting means when the communication abnormality is detected by the communication abnormality detection unit, transmits the communication abnormality detection information to the equipment management device via the first communication connection unit.
- the communication abnormality detection unit is provided in the control device, and detects a communication abnormality of the second communication.
- the communication error detection information transmitting unit of the control device transmits the communication error detection information to the facility management device via the first communication connection unit. I do.
- the facility management device can monitor the communication abnormality of the second communication without detecting the communication abnormality of the second communication. Therefore, the facility management device can monitor the communication abnormality of the second communication without burden.
- a control device for facility equipment according to a second invention is the control device for facility equipment according to the first invention, and further includes a receiving unit.
- the receiving unit receives the control command information of the equipment transmitted from the equipment management device via the first communication connection unit.
- the second communication connection unit is connected to a plurality of equipment via a second communication line corresponding to the equipment network.
- the communication error detection information transmitting means when the receiving unit receives only the control instruction information of the specific equipment among the plurality of equipment, transmits only the detection information of the communication abnormality for the specific equipment to the equipment management device. .
- the communication abnormality detection information transmitting means receives only the control command information of the specific equipment among the plurality of equipment in the receiving unit, the communication abnormality detection information transmitting means transmits only the detection information of the communication abnormality to the specific equipment to the equipment management device. Send to For this reason, the facility management device can monitor only the communication abnormality of the second communication for the target facility equipment. Therefore, the facility management device can monitor the communication abnormality of the second communication without further burden.
- the equipment control device is the equipment control device according to the first invention, and further includes a receiving unit.
- the receiving unit receives the control command information of the equipment transmitted from the equipment management device via the first communication connection unit.
- the second communication connection unit is connected to the equipment via a second communication line corresponding to the equipment network.
- the communication abnormality detection information transmitting means transmits the detection information of the communication abnormality for the equipment to the equipment management device only when the control unit receives the control command information of the equipment in the receiving unit.
- the communication abnormality detection information transmitting means transmits the detection information of the communication abnormality for the equipment to the equipment management device only when the receiving unit receives the control command information of the equipment. For this reason, the equipment management device can only be used when the equipment is targeted. What is necessary is just to monitor the communication abnormality of communication. Therefore, the facility management device can monitor the communication abnormality of the second communication without further burden.
- the facility management device can monitor the communication abnormality of the second communication without detecting the communication abnormality of the second communication. Therefore, the facility management device can monitor the communication abnormality of the second communication without burden.
- the equipment management device can monitor only the second communication abnormality in the target equipment. Therefore, the facility management device can monitor the communication abnormality of the second communication without further burden. If the control device for the equipment according to the third invention is used, the equipment management device may monitor the communication abnormality of the second communication only when the equipment is targeted. Therefore, the equipment management device can monitor the communication abnormality of the second communication without further burden.
- FIG. 1 is a schematic diagram of an air conditioning system and a building network system including a controller according to an embodiment of the present invention.
- FIG. 3 is a schematic diagram of a conventional air conditioning system on a building network system.
- Communication unit (communication error detection information transmitting means, receiving unit)
- FIG. 1 and FIG. 2 show an air conditioning system 13 including a plurality of facility equipment including a controller 31 according to an embodiment of the present invention.
- the air conditioning system 13 is a package system in which the air han 14, the VAV 16 and the exhaust fan 51 are packaged in one package, and the controller 31 in the air han 14 can complete the control in the pack. For this reason, it is possible to reduce construction costs such as trial run adjustment when connecting to the BAS (building 'automation' system), which is a higher system.
- the controller 31 of the air conditioning system 13 is connected to a host system via a LonWorks network.
- the air han 14 is an air conditioner unit having a main function of cooling and warming the air supplied to the VAV 16 by obtaining cold water or hot water with a heat source power (not shown), and also having a humidifying function.
- the air han 14 includes a cooling unit 41, a heating unit 42, and a humidifying unit 43. Cooling water having a flow rate adjusted by the cold water knob 44 flows through the cooling unit 41. Hot water having a flow rate adjusted by a hot water valve 45 flows through the caro heat section 42.
- the humidifying section 43 has a plurality of nozzles, and sprays the steam adjusted by the humidifying valve 46.
- a controller 31 for controlling the valves 44, 45, 46, the fans 47, 51, and the devisos 48, 49, 52 of the air han 14 is arranged in the air han 14.
- the controller 31 includes a communication unit 32 and a communication abnormality detection unit 33.
- the communication unit 32 receives room temperature data and the like from the VAV 16.
- the communication error detection unit 33 detects a communication error that occurs between the VAV 16 and the controller 31.
- the controller 31 controls a VAV damper 62 via a VAV controller 61 of a VAV 16 described later.
- the amount of exhaust air is controlled by the outside air introduction damper 48 for introducing outside air, the return air damper 49 installed in the duct that returns the air in the room 80 to the upstream side of the cooling section 41, etc., and the upstream side of the exhaust fan 51.
- the opening degree of the exhaust damper 52 to be adjusted is also adjusted by the controller 31 in various controls described below.
- VAV 16 is an air-conditioned air sent by air supply fan 47 in air han 14. Equipment that adjusts the amount of air and blows it out to room 80.
- a plurality of VAVs 16 are connected to one air handling machine 14.
- the VAV 16 includes a VAV controller 61, a VAV damper 62, a temperature sensor 63, an air flow sensor (not shown), and the like.
- the VAV controller 61 is connected to the controller 31 via the local communication line 20 and receives a command from the controller 31 to adjust the opening of the VAV damper 62 and to control the state of the VAV damper 62 and the like. Or send it to The connection between the VAV controller 61 and the controller 31 will be described later in detail.
- the controller 31 in the air han 14 transmits control data to the VAV controller 61 and receives monitoring data transmitted from the VAV controller 61.
- the control data includes a start / stop command, a room temperature setting, a cooling / heating mode command, and the like.
- the monitoring data is data such as the indoor measurement temperature, VAV status, VAV required airflow, VAV measurement airflow, and VAV opening status.
- the status data is sent from the respective knobs 44, 45, 46, the respective dunnos 48, 49, 52, the fans 47, 51, and the controller 31 is also provided in the air handling unit 14.
- Predetermined data is sent from a thermistor, a humidity sensor, etc. (not shown). Based on these data, the following various commands are sent to the controller 31, control knobs 44, 45, 46, preparationo 48, 49, 52, fans 47, 51, and VAV controller 61. And the data of the control command.
- controller 31 [Various controls by controller 31]
- the controller 31 performs supply air temperature control, supply air dew point temperature control, warm-up control, supply air flow control, supply air load reset control, outside air cooling control, and the like in the air conditioning system 13. After being connected to the higher-level equipment management device 12 via the LonWorks network communication line 10 and the gateway 12a as described later, the controller 31 performs various controls according to instructions from the equipment management device 12. Even in a state where the controller 31 is not connected to the upper system, the controller 31 can independently execute various controls. In this case, various controls are executed in accordance with an operation input to the controller 31 from a remote controller (not shown) or a main body operation switch.
- the PID control of the cold water valve 44 and the hot water valve 45 depends on the supply air temperature. Done. In the supply air dew point temperature control, PID control of the humidification valve 46 is performed based on the supply air dew point temperature, and humidification is prohibited at low temperatures. In the warm-up control, the pre-cooling Z pre-heating is performed at the time of startup, so that the outside air damper 48 and the exhaust damper 52 are closed. In the supply air volume control, the required air volume is calculated by summing the air volume setting values of the respective VAVs 16, and the rotation speed of the air supply fan 47 is controlled based on the required air volume.
- the rotation speed of the air supply fan 47 is appropriately corrected based on the opening degree of the VAV16.
- the air supply temperature set value is automatically changed from the control state of each VAV 16 (air flow set value ⁇ indoor temperature) and the control state of each part of the air han 14.
- outside air cooling control when intake of outside air is effective, proportional control of each damper is performed based on the supply air temperature.
- the VAV controller 61 includes a communication IC corresponding to a LonWorks network called a “neuron chip”, and is connected to the local communication line 20 by a connection port 61a using a network function of the communication IC.
- VAV16 is equipment that supports the LonWorks network, which is becoming an international standard for open control networks.
- the local communication line 20 is a twisted pair cable extending from a local communication connection port 3 lb of the two connection ports 31a and 31b of the controller 31. Communication using the local communication line 20 is based on the LonTalk protocol. Therefore, VAV16 can be adopted by any manufacturer, as long as it supports the LonWorks network.
- the controller 31 has the local communication connection port 3lb described above separately from the host communication connection port 31a for communication with the host system. Therefore, the VAV 16 is locally connected to the controller 31 in the air han 14 without passing through the communication line 10 of the LonWorks network of the BAS, and together with the air han 14, constitutes a one-packaged air conditioning system 13. .
- the air conditioning system 13 equipped with the controller 31 can independently control and monitor the air han 14 and the VAV 16 as described above.
- the BAS is an open system using the technology of the LonWorks network.
- a plurality of subsystems such as an air conditioning system 13 and a facility management device 12 for building management are connected to a communication line 10 via a gateway 12a. Configuration.
- the subsystems such as the air conditioning system 13 are controlled and monitored by the facility management device 12.
- the controller 31 of the air-conditioning system 13 is connected to the communication line 10 of the LonWorks network by a higher-level communication connection port 31a for communication with a higher-level system.
- the upper-layer communication connection port 3 la is a connection port that uses the network function of the communication IC corresponding to the LonWorks network, similar to the connection port 31 b for the local communication and the connection port 61 a of the VAV controller 61 described above.
- the controller 31 connected to the equipment management apparatus 12 via the communication line 10 and the gateway 12a by the upper communication connection port 31a exchanges the following information with the equipment management apparatus 12.
- the controller 31 receives a command to the air han 14 or the VAV 16 sent from the equipment management device 12 (see a white arrow 91 in FIG. 1).
- Specific commands include a start / stop command of the air han 14, a warm-up command, a supply air temperature setting command, a supply air dew point temperature setting command, an outside air cooling command, and a room temperature measurement command.
- the controller 31 controls the air han 14 and the VAV 16 and collects necessary monitoring data.
- the controller 31 transmits monitoring data relating to the status and settings of the air han 14 and the VAV 16 to the equipment management device 12 (see a white arrow 92 in FIG. 1). Specifically, operation mode state, air supply fan operation state, air supply fan alarm state, air supply inverter output, filter alarm state, air supply temperature measurement value, return air damper opening, chilled water valve opening, indoor measurement Temperature, VAV status and other monitoring data.
- the controller 31 of the present air conditioning system 13 is provided with a communication abnormality detecting unit 33, which detects a communication abnormality occurring between the VAV 16 and the controller 31.
- the abnormality means a disconnection or the like.
- VAV 16 in which the start / stop command or the room temperature setting has become any other than the initial value of the invalid value even once during the startup of the controller 31 is regarded as an abnormality detection target of the equipment management device 12. Note that commands and settings that have become non-Invalid values once due to noise, etc.
- the target power of abnormality detection is not excluded. That is, only the VAV 16 that has been controlled by the equipment management device 12 at least once is to be detected as an abnormality of the equipment management device 12.
- the controller 31 periodically transmits only the indoor temperature setting to all the VAVs 16 and checks whether the update of the network variable fails. As a result of the confirmation, the controller 31 regards the VAV16 that failed to update the network variable as abnormal. Then, if the VAV 16 is a VAV 16 that is an abnormality detection target of the equipment management device 12, the controller 31 transmits data representing the abnormality to the equipment management device 12.
- the controller 31 manages information indicating the communication error in the equipment management. Transmit to device 12. For this reason, the equipment management apparatus 12 can monitor only the communication abnormality between the VAV 16 and the controller 31 for the VAV 16 to be controlled. Therefore, the facility management device 12 can monitor the communication abnormality between the VAV 16 and the controller 31 without burden.
- the VAV 16 is controlled in the air han 14. Therefore, the air-conditioning system 13 can have a simple configuration.
- the data received at the upper communication connection port 31a can be transmitted to the local communication connection port 3lb, and the data received at the local communication connection port 31b can be transmitted to the higher communication connection port 31b. It can be sent to port 31a.
- the LonTalk protocol which is an open net protocol, is adopted as the communication protocol of the connection port 31a for higher-level communication and the connection port 31b for local communication. Therefore, it is possible to adopt a configuration that does not require complicated processing such as protocol conversion.
- both the connection ports 31a and 31b of the controller 31 are compatible with the LonTalk protocol of the LonWorks network which is an open network.
- VAV connected equipment
- the air-conditioning system 13 is formed into a single pack, and can operate independently of a host system using a LonWorks network. Therefore, when a failure occurs in a higher-level system such as the facility management device 12, or when a failure occurs on the communication line 10 of the LonWorks network, for example, a command is directly sent to the controller 31 via a remote controller or the like. By sending, the air conditioning system 13 can operate normally
- VAV16s whose start / stop command or room temperature setting is other than the invalid value of the initial value other than the initial value, such as VAV16, are regarded as abnormality detection targets even during the activation of the controller 31, but all VAV16s are regarded as abnormality detection targets. Even if it is done, it does not help.
- the present invention is applied to an air conditioning system including the air han 14 and the VAV 16, a central system including a heat source unit and a secondary unit, an air conditioning system including an air han and a floor fan unit, and an outdoor unit.
- the present invention can be similarly applied to a package-a-con system including an indoor unit. ⁇ Even in the case of misalignment, two connections are made to the master unit corresponding to the controller that performs the main control. If ports are provided, and one of the connection ports is used to locally connect a terminal device (slave device) subordinate to the master device, the same effects as those of the air conditioning system of the above embodiment can be obtained.
- the LonTalk protocol which is an open network protocol
- the open network is used for one of the connection ports 31 a, 31 b. Protocols may be adopted, while dedicated network protocols may be adopted.
- the LonTalk protocol which is an open net protocol, has been adopted as the communication protocol for both the upper communication connection port 3 la and the local communication connection port 31 b, but the LonTalk protocol is used for any of the connection ports 31 a and 3 lb.
- An open net protocol other than the protocol may be adopted.
- a plurality of VAVs 16 are connected to the controller 31, but one VAV 16 may be connected to the controller 31.
- the controller 31 transmits the detection information of the communication abnormality with respect to the VAV 16 to the equipment management device 12 only when the communication unit 32 receives the control command information of the VAV 16.
- the equipment device control device can monitor the communication abnormality of the second communication without imposing a load on the equipment management device, and can be applied to an air conditioning system and the like.
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Abstract
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-000284 | 2004-01-05 | ||
JP2004000284A JP2005196342A (ja) | 2004-01-05 | 2004-01-05 | 設備機器の制御装置 |
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WO2005067096A1 true WO2005067096A1 (ja) | 2005-07-21 |
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PCT/JP2004/019499 WO2005067096A1 (ja) | 2004-01-05 | 2004-12-27 | 設備機器の制御装置 |
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WO2012081092A1 (ja) * | 2010-12-15 | 2012-06-21 | 富士通株式会社 | 空調制御システム及び風量調整装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06311568A (ja) * | 1993-04-23 | 1994-11-04 | Matsushita Electric Works Ltd | 動力制御システム |
JP2001061190A (ja) * | 1999-08-19 | 2001-03-06 | Hitachi Ltd | 遠方監視制御装置 |
-
2004
- 2004-01-05 JP JP2004000284A patent/JP2005196342A/ja active Pending
- 2004-12-27 WO PCT/JP2004/019499 patent/WO2005067096A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06311568A (ja) * | 1993-04-23 | 1994-11-04 | Matsushita Electric Works Ltd | 動力制御システム |
JP2001061190A (ja) * | 1999-08-19 | 2001-03-06 | Hitachi Ltd | 遠方監視制御装置 |
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