JP4521637B2 - Personal air conditioning system - Google Patents

Description

  The present invention relates to a personal air conditioning system that performs air conditioning for an individual office space.

In recent years, air conditioning loads are unevenly distributed due to the introduction of office automation equipment and the division of work space by partitions, and the number of people complaining of discomfort is increasing. Therefore, an air conditioning system that controls air conditioning equipment based on PMV (Predicted Mean Vote), which is a comprehensive evaluation index of a thermal environment, has been proposed. For example, in Patent Document 1, a PMV equation reflecting an individual's thermal feeling is constructed by a learning function using the resident's thermal declaration value as a teacher signal, and the thermal feeling is controlled by controlling the air conditioning equipment with the PMV value calculated from this PMV equation. Air conditioning systems have been proposed.
JP-A-6-94292 (page 2-3, Fig. 1-3)

In the air conditioning system described in Patent Document 1, environmental factors such as temperature and humidity, air flow rate, radiation amount, clothing amount, and work amount are set within a standard air conditioning condition range. A standard PMV equation is learned by the network. And if there is no thermal declaration from the resident, the air conditioning equipment is controlled with this standard PMV value. If the resident is not satisfied with the air conditioning condition based on the standard PMV value, the thermal declaration value and the The PMV equation is reconstructed using the detected values of temperature / humidity, air flow rate, and radiation amount as a teacher signal, and the air conditioning equipment is controlled.
On the other hand, due to various living behaviors, human metabolism increases temporarily, and the thermal sensation changes accordingly.
However, in the case of the air conditioning system described in Patent Document 1, the standard metabolic rate for each season is considered in advance, but changes in thermal sensation due to increased metabolic rate due to living behavior are not considered. Therefore, there is a problem that discomfort due to a change in thermal sensation due to living behavior cannot be prevented.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide a personal air conditioning system that does not cause discomfort due to a change in thermal sensation caused by living behavior.

In order to achieve the above object, a personal air conditioning system according to the present invention includes a personal air conditioner provided for each office worker, an increased amount of metabolism caused by living behavior in which patterns such as commuting and meals of the office worker are determined , and its The living behavior rhythm input device for inputting the time and duration of the living behavior, and the optimal amount for the worker based on the increase in metabolism due to the living behavior of the worker and the time and duration input to the living behavior rhythm input device. And a controller that controls the personal air conditioner so that the room temperature near the worker is within the upper and lower limits of the optimum room temperature.
In the present invention, the control device determines the upper and lower limits of the room temperature that are optimal for the worker based on the increase in metabolism caused by the living behavior of the worker input to the living behavior rhythm input device and the time and duration thereof. The personal air conditioner is controlled so that the room temperature in the vicinity of the worker is within the upper and lower limits of the optimum room temperature. Specifically, the upper and lower limits of room temperature are set so that the thermal sensation after the increase in metabolic rate is equivalent to the thermal sensation before the metabolic rate increases. Thereby, the thermal sensation accompanying the living behavior of the office worker can be automatically kept constant.

In addition, the personal air conditioning system according to the present invention includes a personal air conditioner provided for each office worker, an RFID tag on which ID information for identifying the office worker is recorded, and an RFID that receives information recorded on the RFID tag. reader and the amount of increased metabolism due to life behavior pattern has been determined, such as office's commuting and meals as well as time and duration of their life action stored in association with the ID information of the office's received by the RFID reader Based on the amount of increase in metabolism due to the living behavior of the worker and the time and duration called by the worker's ID information, the optimum room temperature limit for the worker is determined, and the room temperature in the vicinity of the worker is determined. Is provided with a control device for controlling the personal air conditioner so as to be within the upper and lower limits of the optimum room temperature.
Here, the RFID (Radio Frequency IDentification) tag is an electronic tag with an ultra-small IC chip, and wirelessly reads a signal transmitted by a built-in antenna using an RFID reader.
In the present invention, the control device stores the living behavior information including the amount of increase in metabolism resulting from the living behavior of the worker and the time and duration of the living behavior in association with the ID information of the worker, and the RFID tag The RFID reader reads the recorded ID information of the office worker, and the control device controls the personal air conditioner based on the living behavior information of the office worker associated with the ID information. Thereby, it is possible to save the labor of inputting the living behavior information of the worker into the living behavior rhythm input device.

The personal air-conditioning system according to the present invention, a personal air-conditioning system provided for each office's time metabolism increase and living behavior thereof due to life behavior pattern has been determined, such as office's commuting and meals and Based on the RFID tag in which the duration is recorded, the RFID reader that receives the information recorded in the RFID tag, the increase in metabolism due to the living behavior of the office worker received by the RFID reader, and the time and duration thereof, A control unit that determines an upper and lower limit of the room temperature optimum for the worker and controls the personal air conditioner so that a room temperature near the worker falls within the upper and lower limits of the optimum room temperature.
In the present invention, since the RFID reader automatically reads the amount of metabolism increase due to the living behavior of the office worker and the time and duration recorded in advance in the RFID tag, the living behavior of the office worker is read. It is possible to save the trouble of inputting information into the daily behavior rhythm input device.

In addition, the personal air conditioning system according to the present invention uses the upper and lower limits of room temperature that are optimal for a worker using the Fanger comfort equation, and the PMV after the increase in metabolic rate is equivalent to the PMV before the increase in metabolic rate. It is good to decide to become.

In the personal air-conditioning system according to the present invention, the control device is provided to the worker based on the increased amount of metabolism caused by the living behavior in which the pattern such as commuting or meal of the worker is determined and the time and duration of the living behavior. The optimal room temperature limit is determined and the personal air conditioner is controlled so that the room temperature in the vicinity of the worker is within the optimum room temperature limit. However, the office worker does not feel uncomfortable.

Hereinafter, an embodiment of a personal air conditioning system according to the present invention will be described with reference to the drawings.
1 and 2 are a plan view and an elevation view of a work space showing an example of an embodiment of a personal air conditioning system according to the present invention.
In the personal air conditioning system according to the present embodiment, a personal air conditioner (not shown) having an air outlet 3 provided for each office worker P is controlled by the control device 2.
On the desk 8 used by each worker P, a thermal sensation input device 1 is installed to reflect a different thermal sensation for each worker P in the air conditioning system. The thermal sensation input device 1 and the control device 2 Are connected by a wiring 6.
In addition, a wireless room temperature sensor 4 for measuring the room temperature in the vicinity of the office worker P is attached to the back of the chair 9 used by each office worker P. The room temperature measured by the wireless room temperature sensor 4 is the office space. 7 is sent to the control device 2 via the receiving device 5 installed on the ceiling.
Although only one thermal sensation input device 1 and one air outlet 3 are shown in FIG. 1, the thermal sensation input device 1 and the air outlet 3 are provided for each worker P.

  The upper and lower limits (hereinafter referred to as threshold values) that the worker P feels as the optimum room temperature differ from person to person. Therefore, in this personal air conditioning system, the control device 2 controls the personal air conditioning device by comparing the threshold value set for each office worker P with the room temperature measured by the wireless room temperature sensor 4. Specifically, if the room temperature in the vicinity of the worker P is higher than the threshold value, the personal air conditioner is operated to blow out cold air from the outlet 3, and if the room temperature in the vicinity of the worker P is lower than the threshold value, the personal air conditioner is operated. The apparatus is operated so that warm air is blown out from the air outlet 3 so that the room temperature near the worker P is always within the threshold. On the other hand, if the room temperature near the worker P is within the threshold, the personal air conditioner is stopped.

  In addition to ON / OFF of the personal air conditioner, a comfortable thermal environment may be maintained by controlling the amount of air blown from the air outlet 3. In this case, when the difference between the measured room temperature and the threshold value is large, control is performed such that the air flow rate is large, and when the difference is small, the air flow rate is small.

  The personal air conditioning system also has a learning function in which the threshold set for each worker P moves up and down according to the reporting frequency input from the thermal sensation input device 1. FIG. 3 is a schematic diagram for explaining the threshold learning function. When the room temperature reaches 27 ° C. or more, the office worker P inputs a report “hot” to the thermal sensation input device 1, and the room temperature is 23 When the temperature falls below 0 ° C., a declaration of “cold” is input to the thermal sensation input device 1. From this result, the control device 2 determines that the threshold value of the worker P is 24 to 26 ° C., and corrects the threshold value (T1 to Tu) preset for the worker P to 24 to 26 ° C. .

Now, human metabolism is temporarily increased by various living behaviors. As the metabolic rate increases, the thermal sensation changes even in the same thermal environment. For this reason, this personal air-conditioning system can adjust the time, metabolic rate increase, and duration for daily activities such as commuting and meals that have a certain pattern (that is, daily activities that are repeated regularly) . The living behavior rhythm corresponding function which keeps comfort by considering it is provided, and the thermal sensation input device 1 also serves as a living behavior rhythm input device for inputting the living behavior information of the worker P.

When the worker P inputs the living behavior, time, metabolic increase, and duration thereof to the thermal sensation input device (living behavior rhythm input device) 1, the controller 2 inputs the input metabolic increase and the time and duration. Based on the time, the upper and lower limit of the room temperature optimum for the worker P is determined, and the personal air conditioner is controlled so that the room temperature in the vicinity of the worker P falls within the upper and lower limits of the optimum room temperature. Specifically, the threshold value is changed so that the PMV after the increase in the metabolic rate becomes equivalent to the PMV before the increase in the metabolic rate. For example, if the upper limit of the threshold is 27.5 ° C. and the metabolic rate is increased by 30% due to daily activities and the PMV is increased from 0.5 to 0.9, What is necessary is just to let an upper limit be 25.9 degreeC. The above calculation can be performed using the comfort equation shown by Fanger.
Table 1 shows an example of living behavior information input to the thermal sensation input device (living behavior rhythm input device) 1. The input items are living behavior, time of day, increased amount of metabolism, and duration thereof. FIG. 4 shows an example in which threshold values are set so that PMVs are equivalent based on the living behavior inputs shown in Table 1.

  In the personal air-conditioning system according to the present embodiment, when the office worker P inputs the living behavior, time, amount of increase in metabolism, and duration thereof to the thermal sensation input device (living behavior rhythm input device) 1, the control device 2 The threshold value of the worker P is determined based on the amount of increase in metabolism of P and the time and duration thereof, and the personal air conditioner is controlled so that the room temperature in the vicinity of the worker P falls within the threshold. Thereby, the thermal sensation accompanying the living behavior of the worker P can be automatically kept constant.

FIG. 5 is an elevation view of a work space showing another embodiment of the personal air conditioning system according to the present invention.
In the present embodiment, an RFID tag 11 carried by the office worker P is used instead of the thermal sensation input device (living behavior rhythm input device) 1 used in the previous embodiment. Further, on the desk 8 used by each office worker P, an RFID reader 15 serving as a receiving device that performs wireless communication with the wireless room temperature sensor 4 is installed.

The RFID tag 11 includes a storage unit that stores ID information for identifying the worker P, a transmission unit that transmits ID information of the worker P, and a control unit that controls the storage unit and the transmission unit.
On the other hand, the control device 2 stores life behavior information such as an increase in metabolism resulting from the living behavior of the office worker and the time and duration of the living behavior in association with the ID information of the office worker.

In the personal air-conditioning system according to the present embodiment, the control device 2 associates the living behavior information including the increased amount of metabolism caused by the living behavior of the worker P and the time and duration of the living behavior with the ID information of the worker P. The RFID reader 15 reads the ID information of the office worker P that is stored and recorded in the RFID tag 11, and the control device 2 personalizes the personal information based on the living behavior information of the office worker P associated with the ID information. Control the air conditioner. Thereby, the effort which inputs the living behavior information of the worker P into the thermal sensation input device (living behavior rhythm input device) 1 can be saved. This is particularly effective in a free address office where the office space is not fixed for each office worker P.
In the personal air conditioning system according to the present embodiment, the personal air conditioning equipment is automatically turned on / off by wireless communication between the RFID tag 11 and the RFID reader 15, so that the running cost can be saved.

In the above embodiment, only the ID information for identifying the worker P is stored in the RFID tag 11, but in addition to the ID information, the threshold of the worker P, living behavior, time, metabolic increase, duration Living behavior information such as may be stored. In this case, it is not necessary to store the living behavior information of the worker P in the control device 2.
In the personal air conditioning system according to the present embodiment, the RFID reader 15 automatically reads the threshold value of the worker P and the living behavior information such as time, metabolic rate, and duration recorded in advance in the RFID tag 11. The control device 2 controls the personal air conditioner based on the living behavior information.

  As mentioned above, although embodiment of the personal air conditioning system which concerns on this invention was described, this invention is not limited to said embodiment, In the range which does not deviate from the meaning, it can change suitably. For example, in the above-described embodiment, the underfloor air conditioning is used. However, the present invention is not limited to this, and ceiling blowout air conditioning may be used, or a radiant heating device may be used in combination. In addition, the personal air conditioner may be turned on / off automatically by detecting the presence or absence of an office worker using a human sensor, or personal authentication is performed using logon to a PC, logon to an intranet, etc. May be. The point is that the desired function can be obtained in the present invention.

It is a top view of the office space which shows an example of embodiment of the personal air conditioning system which concerns on this invention. It is an elevation view of the office space. It is a schematic diagram for demonstrating the learning function of a threshold value. It is a figure which shows the example of a setting of the threshold value based on a living action input. It is an elevational view of a work space showing another embodiment of the personal air conditioning system according to the present invention.

Explanation of symbols

1 Thermal input device (living behavior rhythm input device)
2 Control device 3 Air outlet 4 Wireless room temperature sensor 5 Receiving device 6 Wiring 7 Office space 8 Desk 9 Chair 11 RFID tag 15 RFID reader P Office worker

Claims (4)

Personal air conditioner provided for each worker,
Metabolism increase the amount due to the life behavior pattern has been determined, such as office's commuting and meals, as well as the life behavior rhythm input device for inputting the time and duration of its life behavior,
Based on the increase in metabolism due to the living behavior of the worker and the time and duration input to the living behavior rhythm input device, the optimum room temperature limit for the worker is determined, and the room temperature in the vicinity of the worker is A personal air conditioning system, comprising: a control device that controls the personal air conditioning device so as to be within an upper and lower limit of an optimum room temperature. Personal air conditioner provided for each worker,
An RFID tag on which ID information for identifying a worker is recorded;
An RFID reader for receiving information recorded in the RFID tag;
Metabolism increase due to life behavior pattern has been determined, such as office's commuting and meals as well as time and duration of their life action stored in association with the ID information of the office's received by the RFID reader Oval Based on the amount of increase in metabolism due to the living behavior of the worker and the time and duration called by the worker's ID information, the optimum room temperature limit for the worker is determined, and the room temperature near the worker is the optimum A personal air conditioning system comprising: a control device that controls the personal air conditioning device so as to fall within an upper and lower limit of room temperature. Personal air conditioner provided for each worker,
And the RFID tag metabolism increase the amount due to the life behavior pattern has been determined, such as office's commuting and meals, as well as the time and duration of its life behavior has been recorded,
An RFID reader for receiving information recorded in the RFID tag;
Based on the increase in metabolism due to the living behavior of the worker received by the RFID reader and the time and duration thereof, the optimum room temperature limit for the worker is determined, and the room temperature in the vicinity of the worker is the optimum room temperature. A personal air conditioning system, comprising: a control device that controls the personal air conditioning device so as to be within an upper and lower limit.   It is characterized in that the upper and lower limits of room temperature that are optimal for a worker are determined by using Fanger's comfort equation so that the PMV after the increase in metabolic rate is equivalent to the PMV before the increase in metabolic rate The personal air conditioning system of any one of Claims 1 thru | or 3.

Images