JP2003269773A - Air conditioning equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem of conventional air conditioning equipment wherein an outdoor machine and indoor machines are connected by a control line, the control line is used for sending/receiving information related to the driving of the air conditioning equipment and not used for transmitting indoor information such as a fire. <P>SOLUTION: In this air conditioning equipment, the outdoor machine is connected to a plurality of indoor machines by the control line to form a network of the air conditioner. A centralized control unit connected to the control line receives sensor detection information of rooms equipped with the indoor machines and, when the detection information is determined to be abnormal information, issues a command of stopping the drive of the indoor machine of the room equipped with the sensor so as to prevent the spread of the fire. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly to an air conditioner that forms a network of air conditioners, detects abnormalities in an installation place of the air conditioners, and responds to the abnormal conditions.

[0002]

2. Description of the Related Art FIG. 10 is a diagram showing a conventional air conditioner in a building, for example. In the figure, 1 is an outdoor unit of an air conditioner, 2 is an indoor unit, and room 1, room 2, ...
.... In the room 4, the indoor unit 2a, the indoor unit 2b,
The indoor unit 2d is arranged. Reference numeral 3 denotes a room temperature sensor, which is an indoor unit 2a, an indoor unit 2b, ..., An indoor unit 2d.
Are the room temperature sensor 3a, the room temperature sensor 3b,
..., having a room temperature sensor 3d. Reference numeral 15 denotes a control line. Each indoor unit 2 is connected to the outdoor unit 1 by the control line 15, and each indoor unit 2 and the outdoor unit 1 exchange information regarding the operation of the air conditioner by this control line 15.

[0003]

As described above, in the conventional air conditioner in a building, the outdoor unit 1 and each indoor unit 2 exchange information regarding the operation of the air conditioner through the control line 15. However, even when the room temperature sensor 3 is provided, the change in the indoor environment or the stop of the indoor unit 2 at the time of an abnormality such as a fire cannot be transmitted by the control line 15, that is, the control line 15 of the air conditioner in the building is It was only used to control the operation of the air conditioner.

The present invention is an air conditioner capable of exchanging information relating to the operation of the air conditioner through a network of air conditioners using control lines of the air conditioner and also transmitting information when an abnormality such as a fire occurs. The purpose is to obtain an air conditioning equipment having a network of. Another object of the present invention is to obtain an air conditioner having a network of air conditioners that allows a room in which an abnormality such as a fire has occurred to be easily known. Moreover, it aims at obtaining the air conditioning equipment which has the network of the air conditioner which can obtain the information of the abnormal progress of the occurrence of abnormalities, such as a fire. Moreover, it aims at obtaining the air conditioning equipment which has a network of air conditioners which can reduce the damage at the time of abnormality, such as a fire. Another object of the present invention is to have an air conditioner network composed of a plurality of air conditioners, to obtain information on fires and the like, and to obtain an air conditioner capable of coping with such information.

[0005]

According to a first aspect of the present invention, there is provided an air conditioner network in which an air conditioner equipped with an outdoor unit and an indoor unit is connected to a central control unit through a control line. In the air conditioning equipment that has formed the, the sensor in the room where the indoor unit is installed transmits the sensor detection information through the control line, and when the centralized control device that receives the sensor detection information determines that the sensor detection information is abnormal information, centralized control is performed. The device issues a command to stop the operation of the indoor unit in the room where the sensor is installed.

Further, the air conditioning equipment according to claim 2 is
In the air conditioning equipment that connects the air conditioner equipped with the outdoor unit and the indoor unit with the centralized control device by the control line to form the air conditioner network, the sensor in the room where the indoor unit is installed is regularly controlled by the control line. The sensor detection information is transmitted to the centralized management device, and the centralized management device reports an abnormality occurrence when the transmission of the sensor detection information is stopped.

The air conditioning equipment according to claim 3 is
In the air conditioning equipment according to claim 1 or 2, the present invention is provided. The air conditioning equipment forming a network of air conditioners is one in which a plurality of air conditioners including an outdoor unit and an indoor unit are connected to a central control device by a control line.

The air conditioning equipment according to claim 4 is
In the air conditioning equipment according to claim 1, the central control device displays the received sensor detection information and the result of the abnormality judgment on the display device for each room.

The air conditioning equipment according to claim 5 is
In the air conditioning equipment according to claim 2 or 3, when the central control device stores the reception time of the received sensor detection information in a storage device and the sensor detection information is normally transmitted to the display device for each room. Indicates that, and when the transmission is stopped, the previous reception time taken out from the storage device is displayed as the disconnection time.

The air conditioning equipment according to claim 6 is
In the air conditioning equipment according to claim 4 or 5, the display of each room of the display device is displayed together with the layout of the room.

The air conditioning equipment according to claim 7 is
In the air conditioning equipment according to any one of claims 1 to 6, the sensor is a room temperature sensor, the detection information is room temperature information of the room, and the central control device has a predetermined limit for the room temperature information of the received room. If the temperature information exceeds the temperature, it is determined as abnormal information.

The air conditioning equipment according to claim 8 is
In the air conditioning equipment according to any one of claims 1 to 6, the sensor is a carbon dioxide sensor, the detection information is carbon dioxide concentration information of the room, and the central control device determines that the carbon dioxide concentration information of the received room is predetermined. If the carbon dioxide concentration information exceeds the limit gas concentration of, it is determined as abnormal information.

The air conditioning equipment according to claim 9 is
In the air conditioning equipment according to claim 1 or 2, when the central control device receiving the sensor detection information determines that the sensor detection information is abnormal information, or when the transmission of the sensor detection information is stopped, the central control device: It issues a command to operate a room ventilation fan, a room air cleaner, or a room ventilation fan and an air cleaner.

Further, the air conditioning equipment according to claim 10 is the air conditioning equipment according to claim 1 or 2, wherein the central control device receiving the sensor detection information determines that the sensor detection information is abnormal information. Alternatively, when the transmission of the sensor detection information is stopped, the central control device issues an instruction to stop the power supply to the air conditioner and an instruction to start the low power supply for the sensor to the outdoor unit.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. Hereinafter, the air conditioning equipment of Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an air conditioner having a network of air conditioners, FIG. 2 is a flow chart of control of the air conditioner, and FIG. 3 is a diagram showing a display example of a display device of a central control device. FIG. 4 is a diagram showing another display example.

In the figure, 1 is an outdoor unit of an air conditioner, 2 is an indoor unit, and is a room 1, a room 2, ...
.., in the room 4, the indoor unit 2a, the indoor unit 2b, ...
.., the indoor unit 2d is arranged. 3 is a sensor,
In this case, it is the room temperature sensor, and the indoor unit 2a and the indoor unit 2
b, ..., The indoor unit 2d has a room temperature sensor 3 respectively.
a, room temperature sensor 3b, ..., Room temperature sensor 3d. Reference numeral 4 is a centralized management device provided in the management room. 5
Is a control line, and each indoor unit 2 and each room temperature sensor 3 are connected to the outdoor unit 1 by a control line 5, and the outdoor unit 1 is connected by a control line 5 to the centralized management device 4 in the management room. The air conditioner network thus formed is referred to as an air conditioner. However, although the number of rooms is four in FIG. 1, the number of rooms is not particularly limited.

Next, the operation will be described with reference to the flowchart of FIG. Room temperature sensor 3 during operation of the air conditioner
The measured temperature of 1 is periodically sent to the outdoor unit 1 through the control line 5, and the outdoor unit 1 that has received the measured temperature is sent to the central control device 4 of the control room. The central control device 4 judges whether the measured temperature exceeds the limit temperature (t ° C.) of the normal room temperature (ST1), and when it exceeds the limit temperature, when the indoor unit 2 belonging to the room is in operation. (Determined in ST2), a stop command for the operation of the indoor unit 2 is issued (ST3). Central control device 4 after stop
From the control line 5, the ventilation fan (or the air cleaner or the ventilation fan and the air cleaner) in the room is operated (ST4).
Further, a fire alarm is connected from the central control device 4 by a control line 5 (not shown in FIG. 1) to notify the occurrence of fire (ST5).

In ST3, the central control device 4 issues a command to stop the operation of the indoor unit 2, and the command transmission in this case is carried out as follows. The central control device 4 is the indoor unit 2
When an operation stop command is issued to c, the control board installed in the outdoor unit 1 of the relay detects an abnormality, and the relay is turned off to stop the power supply to the commercial voltage driven compressor and the fan motor of the outdoor unit 1. To issue a command. At the same time, in response to the operation stop command to the indoor unit 2c, the control board installed in the indoor unit 2c detects an abnormality and issues a command to turn off the relay to stop the power supply to the fan motor. At this time, depending on the control method of the air conditioner, the stop command may be issued to the fan motor by the indoor unit 2c alone. In addition, the outdoor unit 1
When the operation of the indoor unit 2c is controlled by the internal control board, a stop command may be issued from the control board installed in the outdoor unit 1 to the power supply relay of the fan motor of the indoor unit 2c.
Further, in this case, the control board of the outdoor unit 1 may control the valve circuit of the refrigerant circuit and switch to the refrigerant recovery operation to recover the refrigerant.

Although not shown in the flow chart of FIG. 2, when the central control device 4 in the control room receives the temperature measured by the room temperature sensor 3, the temperature measured by the room temperature sensor 3 is received during operation of the air conditioner. Display on the display device for each room. This display displays the latest measured temperature for each room as shown in FIG. Then, in the room that has exceeded the limit temperature, a warning message such as a fire is displayed together with the measured temperature. Therefore, the room where the temperature exceeds the limit temperature (the room in the abnormal state such as the room where the fire is occurring) becomes clear by looking at the display. Further, as shown in FIG. 4, these may be displayed together with the layout of the room including passages, entrances and exits in the building.

As described above, according to this embodiment, the control line 5 connecting the outdoor unit 1 and the indoor unit 2 is used, that is,
Using the network of air conditioners, information about the operation of the air conditioners can be exchanged and the room in which an abnormality such as a fire has occurred can be known.
Is stopped (in the case of FIG. 1, the indoor unit 2c is stopped), the facility cost can be reduced, and the spread of fire due to the indoor unit 2 continuing to move at the fire site can be prevented. In addition, by displaying the measured temperature for each room and displaying the abnormality when there is an abnormality, it is possible to visually know the room in which the fire occurred, the direction of the fire spread, etc., and to accurately guide evacuation and extinguish fire. You can get the auxiliary data of. Further, by displaying the information together with the layout of the rooms in the building, not only the room where the fire has occurred can be specified, but also the direction of the fire spread and the evacuation guidance can be effectively performed.

In the present embodiment, the central control device 4 issues an instruction to stop the operation of the indoor unit 2c which is judged to be abnormal, and at the same time, the central control device 4 issues an instruction to stop the main power supply.
By controlling the relay circuit installed in the distribution board provided to supply power to the air conditioner, and setting the system that can cut off the main power, it is possible to prevent electric leakage due to the heat of the fire, prevent electric shock, and identify the cause of the fire. Will help.

Further, in order to prevent the disconnection of the indoor information (temperature information) from the indoor unit 2 of the fire occurrence room due to the disconnection of the main power source, the central control device 4 issues a command, and the outdoor unit 1 outputs a low power for the sensor 3. It is desirable to start the supply of. As a result, disconnection of indoor information (temperature information) can be prevented, indoor information can be continuously obtained, and the direction of fire spread and evacuation guidance can be effectively performed. It should be noted that the supply of the weak electric current for the sensor 3 from the outdoor unit 1 is started by lowering the commercial power supply supplied to the control board provided in the outdoor unit 1 to the control voltage, which is provided in the indoor unit 2c. The control board 5 is supplied to the formed control board. It should be noted that the power source for the sensor for obtaining indoor information not only at the time of abnormality may be normally supplied from the outdoor unit 1. In addition, the evacuation route may be instructed by operating a guide light connected by the control line 5 according to a command from the centralized management device 4.

Information need not always be transmitted to the centralized management device 4. That is, the sensor itself, the indoor unit, or the outdoor unit judges the detection result, and transmits the measured temperature and the indoor information when it is judged that there is an abnormality so that an unnecessary transmission load does not occur. May be. As described above, the exchange of information regarding the operation of the air conditioner through the control line 5 is performed between the outdoor unit 1 and each indoor unit 2.

Embodiment 2. Hereinafter, the air conditioning equipment of Embodiment 2 of the present invention will be described with reference to the drawings. FIG. 5 is a view showing an air conditioner having a network of air conditioners, FIG. 6 is a flow chart of control of the air conditioner, and FIG. 7 is a view showing a display example of a display device of the centralized control device. is there. In the figure, the same as in the first embodiment,
Or, corresponding components are given the same reference numerals (numbers) and the description thereof is omitted.

In FIG. 5, reference numeral 6 denotes a sensor, which in this case is a carbon dioxide gas sensor which is a kind of gas detection sensor. In each room, a carbon dioxide gas sensor 6a,
6b, ..., 6d are provided. Reference numeral 8 denotes a ventilation fan, which is also installed in each room (in FIG. 5, only room 3 is shown, but other rooms are the same). The carbon dioxide sensor 6 is connected to the control line 5 and constitutes a network of the air conditioner. Others are the same as in FIG. 1 of the first embodiment.

Next, the operation will be described with reference to the flowchart of FIG. During operation of the air conditioner, the measured gas concentration of the carbon dioxide gas sensor 6 is periodically sent to the outdoor unit 1 via the control line 5, and the outdoor unit 1 receiving the measurement result is sent to the centralized management device 4 in the management room. The central control device 4 judges whether the measured gas concentration exceeds the limit gas concentration at normal room temperature (ST
1) If it exceeds the limit gas concentration, and if the indoor unit 2 belonging to the room is in operation (determined in ST2), a command to stop the operation of the indoor unit 2 is issued (ST3). After stopping
An operation instruction for the ventilation fan 8 in the room is issued (ST4). Furthermore, the central control unit 4 is connected by a control line 5 (see FIG. 5).
(The display is omitted in the figure.) A fire alarm notifies the occurrence of a fire (ST5).

Although not shown in the flow chart of FIG. 6, when the central control device 4 in the control room receives the measurement result of the carbon dioxide gas sensor 6, the measurement result of the received measurement gas concentration is as shown in FIG. , Display by room. If the measured gas concentration is within the normal range, "Normal" is displayed, and if the room exceeds the limit gas concentration, "Gas concentration is rapidly increasing", etc. will be displayed and cautions for abnormalities such as a fire will be displayed. 3 is applicable). Therefore, the room where the limit gas concentration is exceeded by looking at the display (the room where an abnormality such as a fire has occurred)
Becomes clear. Further, similar to FIG. 4 of the first embodiment, it may be displayed together with the layout of the rooms in the building.

As described above, according to the present embodiment, by stopping the indoor unit 2 in the room where the fire has occurred (in the case of FIG. 5, the indoor unit 2c is stopped), the indoor unit 2 can be operated at the fire site. It is possible to prevent the spread of fire due to continuous movement. In addition, by displaying the measurement results of the measured gas for each room and displaying any abnormalities, it is possible to visually know the room where the fire occurred, the direction of the fire spread, etc. Auxiliary data can be obtained. Further, by operating the ventilation fan 8 in the fire occurrence room, exhaust and smoke are discharged to reduce damage of gas poisoning (carbon dioxide poisoning, carbon monoxide poisoning). Further, by performing the display together with the layout of the room, not only the fire occurrence room can be specified, but also the fire spread direction can be determined and the evacuation guidance can be effectively performed.

When it is determined that the concentration of the gas exceeds the limit gas, the main power supply can be turned off, and in order to prevent disconnection of indoor information, the outdoor unit 1 detects the carbon dioxide sensor 6
It is the same as in the first embodiment that it is preferable to supply a weak electric power for use, and the same effect can be obtained. In addition, the power supply for the sensor may be normally supplied from the outdoor unit 1 as in the first embodiment. Further, instead of the ventilation fan 8, an air purifier may be installed and operated, or both the air fan 5 and the air purifier may be installed and operated at the same time. Further, the central management device 4 may not always transmit information, and the detection result may be transmitted from the case where the sensor itself, the indoor unit or the outdoor unit determines that there is an abnormality, and the detection result is transmitted. It is similar to the first embodiment.

Furthermore, by installing both the room temperature sensor 3 of the first embodiment and the carbon dioxide sensor 6 of the present embodiment, an air conditioner having high reliability for detecting abnormal conditions such as fire detection can be provided. can get.

Embodiment 3. Hereinafter, the air conditioning equipment of Embodiment 3 of the present invention will be described with reference to the drawings. FIG. 8 is a flow chart of the control of the air conditioning equipment, and FIG. 9 is a view showing a display example of the display device of the centralized management control device.
In the present embodiment, the indoor information is transmitted through the control line 5,
The storage device of the central control device 4 and the display contents of the display device which are received are characteristic, and the other air conditioning equipment is the same as in the first or second embodiment. However, the description of the same configuration will be omitted.

The operation will be described with reference to the flowchart of FIG. During operation of the air conditioner, control line 5 is regularly
Via the indoor information of all rooms, such as the measured temperature of the indoor temperature sensor 3 and the gas concentration information of the gas detection sensor 6 (any indoor information indicating that the control line 5 of the room is not disconnected) Is sent to the outdoor unit 1 via the control line 5, and the outdoor unit 1 sends it to the centralized management device 4 in the control room. The central control device 4 determines whether the indoor information is transmitted normally (ST1). If it is normal, data such as the receiving time is stored in the storage device (ST2). If it is not transmitted normally, that is, if there is a disconnected room, the indoor unit 2 in another room
Judges whether it is in operation (ST3), and if there is any in operation, issues a stop command for the indoor unit 2 in operation (ST4).
Then, an operation command for the ventilation fan in the room which is not disconnected is issued (ST5). Further, the centralized control device 4 issues a command to the fire alarm connected to the control line 5 to notify the occurrence of the fire (ST6). Furthermore, fire extinguishing activities and evacuation guidance are performed according to the surroundings of the fire (ST7).

Although not described in the flow chart of FIG. 8, when the central control device 4 in the control room receives the indoor information of each room, the received result is displayed for each room as shown in FIG. As shown in FIG. 9, the central control device 4 in the control room indicates “normal” for a room in which the room information is not disconnected for each room, and “normal” for the disconnected room.
"Data disconnection" and "disconnection time" are displayed. The disconnection time indicates the latest reception time stored in the storage device. By doing so, as shown in FIG. 9, it can be seen that an abnormal situation such as a fire spreads from the room 3 to the room 4 or continues.

In the present embodiment, the fire progress can be visually confirmed by looking at the display device of the centralized control device 4. Further, in the present embodiment as well, by performing the display together with the layout of the room as shown in FIG. 4, more effective information on evacuation and fire fighting activities can be obtained. Also in the present embodiment, the effects of stopping the indoor unit 2 due to a fire and operating the ventilation fan described in the first and second embodiments are the same.
The air purifier may be operated instead of the ventilation fan, and the air purifier may be operated together with the ventilation fan. The same applies to the point that the main power source is cut off due to the disconnection of data and that the outdoor unit 1 supplies a weak electric power for indoor information transmission.

Fourth Embodiment Embodiments 1 and 2 above
In 3, an outdoor unit 1 (or a plurality of units) and a single air conditioner having a plurality of indoor units 2 belonging thereto are connected by a control line 5 and are connected to a central control device 4 in a control room. Although it was a network, the present embodiment uses the outdoor unit 1
The present invention relates to an air conditioner consisting of a network of air conditioners in which a plurality of air conditioners having a plurality (or a plurality) and an indoor unit 2 (or a plurality) belonging thereto are connected by a control line 5 to a central control device in a control room. is there.

The air conditioning equipment of the present embodiment is provided in one building (building), in a plurality of buildings (buildings) having air conditioners, and in the central control device 4, for example, another An air conditioner in a room in a building (building) that belongs to a building security company and does not form an air conditioner network is connected to a central control device 4 of another building (building) by a control line 5. However, it takes various forms such as forming a reporting system.
In the present embodiment as well, the sensor information described in the first, second, and third embodiments is acquired (including the disconnection information of the sensor) and the room where the abnormality such as the fire is displayed is displayed, and the situation of the abnormality occurrence. It is possible to take the same measures and deal with abnormalities in the same manner. Further, by extracting an ON / OFF signal of a contact from the control board of the indoor unit 2 or the outdoor unit 1 when a fire occurs, the centralized control device can detect the fire occurrence. Further, abnormal information such as fire can be reported from the network system of the security company to the fire department or another designated management department.

As described above, the transmission control of the indoor information to the central control device 4 and the corresponding instruction control at the time of abnormality judgment described in the first, second and third embodiments of the present invention should be appropriately combined. You can The reliability of recognizing an abnormality in a room, grasping an abnormal state, and the like is improved by combining not only the one described in each embodiment but a plurality of combinations. Further, even if there is a malfunction in the plurality of sensors in the room, other sensors can obtain the indoor information, and the reliability is improved. Also,
It is assumed that the display device of the centralized management device 4 can switch and display the display contents, and by confirming the plurality of display contents by switching, more accurate information can be obtained.

Also, when there are a plurality of indoor units in the room and there are a plurality of sensors, the same as described in each embodiment,
On the display of the display device of the centralized management device 4, the detection results of a plurality of sensors are displayed for each room.

[0039]

The air conditioner according to claim 1 of the present invention is an air conditioner network in which an air conditioner equipped with an outdoor unit and an indoor unit and a central control device are connected by a control line. In the harmony equipment, when the sensor in the room where the indoor unit is installed transmits the sensor detection information through the control line, and the central control device that receives the sensor detection information determines that the sensor detection information is abnormal information, the central control device determines that the sensor is Since an instruction to stop the operation of the indoor units in the installed room is issued, information on the operation of the air conditioners is exchanged via the air conditioner network, and a fire in each room occurs using the air conditioner network. It is also possible to transmit the abnormal information of the air conditioner, and by stopping the indoor unit of the air conditioner in the room where the abnormal information is detected, the spread of the fire caused by the continuous operation of the indoor unit during a fire. Prevents promotion can be removed the adverse effect of the indoor unit is operating in the abnormal state.

The air conditioning equipment according to claim 2 is
In the air conditioning equipment that connects the air conditioner equipped with the outdoor unit and the indoor unit with the centralized control device by the control line to form the air conditioner network, the sensor in the room where the indoor unit is installed is regularly controlled by the control line. The sensor management information is transmitted to the central control unit, and when the sensor detection information transmission is stopped, the central control unit reports an abnormality occurrence.Therefore, the air conditioner network exchanges information on the operation of the air conditioner. , Using the air conditioner network,
While exchanging information about the operation of the air conditioner, you can know the occurrence of abnormalities such as fires in each room,
Moreover, it is possible to deal with the abnormality by notifying the occurrence of the abnormality.

The air conditioning equipment according to claim 3 is
The air conditioner according to claim 1 or 2, wherein the air conditioner forming a network of air conditioners connects a plurality of air conditioners equipped with an outdoor unit and an indoor unit with a central control device through a control line. Therefore, even in an air conditioner in which a plurality of air conditioners are networked, it is possible to exchange information regarding the operation of the air conditioners and to know an abnormal occurrence such as a fire occurrence in each room.

The air conditioning equipment according to claim 4 is
In the air conditioning equipment according to claim 1, since the central control device displays the received sensor detection information and the result of the abnormality judgment for each room on the display device, the room in which an abnormality such as a fire has occurred and the spread of the fire are visually observed. The direction in which the abnormality spreads, such as the direction, can be known, which can be useful for accurate evacuation guidance and fire fighting activities.

The air conditioning equipment according to claim 5 is
In the air conditioning equipment according to claim 2 or 3, when the central control device stores the reception time of the received sensor detection information in a storage device and the sensor detection information is normally transmitted to the display device for each room. Indicates that, and when the transmission is cut off, the previous reception time taken out from the storage device is displayed as the disconnection time. Therefore, the progress of the abnormal situation over time can be known by looking at the display. In the event of a fire, the direction of the fire spread will be known, and effective information for evacuation and extinguishing will be provided.

The air conditioning equipment according to claim 6 is
In the air conditioning equipment according to claim 4 or 5, the display for each room of the display device is displayed together with the room layout. Therefore, by observing the display, the relationship between the room layout and the room in which the abnormality has occurred becomes clear, and the evacuation And provide effective information by extinguishing fire.

The air conditioning equipment according to claim 7 is
In the air conditioning equipment according to any one of claims 1 to 6, the sensor is a room temperature sensor, the detection information is room temperature information of the room, and the central control device has a predetermined limit for the room temperature information of the received room. If the temperature information exceeds the temperature, it is judged as abnormal information, so the room temperature sensor
It is possible to know the room where an abnormality such as a fire has occurred by using the network of air conditioners.

The air conditioning equipment according to claim 8 is
In the air conditioning equipment according to any one of claims 1 to 6, the sensor is a carbon dioxide sensor, the detection information is carbon dioxide concentration information of the room, and the central control device determines that the carbon dioxide concentration information of the received room is predetermined. If it is the carbon dioxide concentration information that exceeds the limit gas concentration, it is determined to be abnormality information, and therefore the carbon dioxide sensor can be used to know the room in which an abnormality such as a fire has occurred using the network of the air conditioner.

The air conditioning equipment according to claim 9 is
In the air conditioning equipment according to claim 1 or 2, when the central control device receiving the sensor detection information determines that the sensor detection information is abnormal information, or when the transmission of the sensor detection information is stopped, the central control device: Since it issues a command to operate the room ventilation fan, operate the room air purifier, or operate the room ventilation fan and air cleaner, it is possible to reduce harmful gas even if harmful gas is generated and reduce human damage. .

Further, the air conditioning equipment according to claim 10 is the air conditioning equipment according to claim 1 or 2, wherein the central control device receiving the sensor detection information determines that the sensor detection information is abnormal information. , Or when the transmission of the sensor detection information is cut off, the central control unit issues a command to stop the power supply to the air conditioner and a command to start the low power supply for the sensor to the outdoor unit. The operation can be stopped to ensure the safety and the sensor information can be continuously acquired, and the information effective for evacuation and fire extinguishing can be collected.

[Brief description of drawings]

FIG. 1 is a diagram showing an air conditioning facility according to a first embodiment.

FIG. 2 is a flowchart of control of the air conditioning equipment of the first embodiment.

FIG. 3 is a diagram showing a display example of a display device of the centralized management device according to the first embodiment.

FIG. 4 is a diagram showing another display example of the display device of the centralized management device according to the first embodiment.

FIG. 5 is a diagram showing an air conditioning equipment of a second embodiment.

FIG. 6 is a flowchart of control of the air conditioning equipment of the second embodiment.

FIG. 7 is a diagram showing a display example of a display device of the centralized management device according to the second embodiment.

FIG. 8 is a flowchart of control of the air conditioning apparatus of the third embodiment.

FIG. 9 is a diagram showing a display example of a display device of the centralized management device according to the third embodiment.

FIG. 10 is a diagram showing a conventional air conditioner.

[Explanation of symbols]

1 air conditioner outdoor unit, 2 air conditioner indoor unit, 3 sensors (room temperature sensor), 4 centralized control devices, 5 control lines, 6 sensors (carbon dioxide sensor), 8 ventilation fans.

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3L060 AA02 CC02 CC13 DD01 DD06                       EE21 EE45                 3L061 BA04 BA05 BC03 BC05 BD02

Claims (10)

[Claims] 1. An air conditioner in which an air conditioner equipped with an outdoor unit and an indoor unit and a central control unit are connected by a control line to form a network of air conditioners, wherein a sensor in a room in which the indoor unit is installed is When the central control device that transmits the sensor detection information through the control line and receives the sensor detection information determines that the sensor detection information is abnormal information, the central control device determines whether the indoor unit of the room in which the sensor is installed. An air conditioning facility characterized by issuing an operation stop command. 2. In an air conditioner in which an air conditioner equipped with an outdoor unit and an indoor unit is connected to a central control device by a control line to form a network of air conditioners, a sensor installed in the room in which the indoor unit is installed is regularly used. When the sensor control information is transmitted to the central control device through the control line, and the central control device stops transmitting the sensor detection information,
An air conditioner that reports abnormalities. 3. The air conditioning equipment forming a network of the air conditioners is characterized in that a plurality of air conditioners having an outdoor unit and an indoor unit and a central control device are connected by a control line. The air conditioning equipment according to claim 1 or 2. 4. The air conditioning equipment according to claim 1, wherein the centralized management device displays the received sensor detection information and the result of abnormality determination on a display device for each room. 5. The central control device stores the reception time of the received sensor detection information in a storage device, and displays the fact that the sensor detection information is normally transmitted to each room on a display device, and The air conditioning equipment according to claim 2 or 3, wherein when the transmission is stopped, the previous reception time taken out from the storage device is displayed as the disconnection time. 6. The display for each room of the display device is displayed together with the layout of the room.
Alternatively, the air conditioning equipment according to claim 5. 7. The room temperature sensor is the sensor, the room temperature information of the room is the detection information, and the room temperature information of the room received by the central control device is temperature information that exceeds a predetermined limit temperature. In this case, the air conditioner according to any one of claims 1 to 6, wherein the air conditioner is determined as abnormal information. 8. The sensor is a carbon dioxide sensor, the detection information is carbon dioxide concentration information of a room, and the central control device receives the carbon dioxide concentration information of the room that exceeds a predetermined limit gas concentration. When it is carbon dioxide concentration information, it is judged as abnormal information, The air conditioning equipment according to any one of claims 1 to 6. 9. The central control device receives the sensor detection information, determines that the sensor detection information is abnormal information, or stops transmitting the sensor detection information, the central control device controls the ventilation fan in the room. 3. The air conditioning equipment according to claim 1 or 2, which issues a command to operate the air purifier in the room, or to operate the ventilation fan and the air cleaner in the room. 10. When the centralized management device receiving the sensor detection information determines that the sensor detection information is abnormal information, or when the transmission of the sensor detection information is cut off,
The centralized control device issues a command to stop the power supply to the air conditioner and a command to start the low power supply for the sensor to the outdoor unit. Air conditioning equipment as described.