JPS61256138A - Multiple room air-conditioning system - Google Patents

Abstract

PURPOSE:To obtain a desired room temperature at all times by a constitution wherein a temperature after changing is set as a control temperature when there is a change in the present set temperature of a main thermostat or a room thermostat. CONSTITUTION:The main thermostat 1, setting the temperature settings of a plurality of rooms together simultaneously, and the room thermostat 5, setting the set temperature of individual rooms independently, are arranged in the system. When the present set temperature TM1 of the main thermostat 1 is changed, all of the control temperature TR3 of the rooms are changed. When the user of second room changes the present set temperature of the room thermostat 5, the set temperature after the change becomes the control temperature of the second room. The temperature setting operation of the thermostat, which is effected by the last user of the room, is preferred preferentially to obtain the control temperature TR3 at all times. A temperature control unit 13 receives an information with respect to the control temperature TR3 of each room, a present temperature TR4 and a condition MM or the same M from a thermostat control unit 12 and controls each room so as to obtain the control temperature TR3. Thus, the control temperature may be set so as to obtain the desired temperature of the user.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a multi-room air conditioning system in which temperature control is always performed at the last set current temperature regardless of whether the main thermostat or room thermostat is operated. It is something.

[Conventional technology]

BACKGROUND ART Conventionally, there has been a wide variety of techniques related to individual temperature opening and closing of air conditioning systems for multiple rooms, for example, variable capacity control systems (VAV7 stems) using air ducts. As an example, in systems where there is no main thermostat, setting the desired room temperature is accomplished by the user using a separate room motorstat located within each room. Conversely, in systems where an individual room thermostat is not provided, the desired temperature is typically set by the main thermostat.

In systems that include both a main thermostat and each room thermostat, temperature selection is accomplished by an override switch or some type of timer.

[Problem that the invention seeks to solve]

Conventional multi-room air conditioning systems such as those described above have the disadvantage that in large-scale commercial applications, temperature control is not changed in response to various inputs from unspecified users in various rooms. It's advantageous. However, for residential use, there is the issue of which of the two thermostats should be given priority. Despite the need for something more convenient, there was a problem in that it was not possible to deal with this.

This invention was made to solve these problems,
It is an object of the present invention to provide a multi-room air conditioning system in which the current desired room temperature of the user is always obtained regardless of whether the main thermostat or the room thermostat is operated. hand.

The current set temperature can be visually recognized in the main room thermostat, and in the room thermostat.

To provide a multi-room air conditioning system in which the actual current temperature in each room and the control temperature used for control can be visually recognized, and a desired temperature can always be set reliably.

[Means for solving inter-group points]

In the multi-room pregnancy control system according to the present invention, when there is a change in the current set temperature of the main thermostat or the room thermostat in the thermostat wJ system that determines the control temperature, the temperature after the change is always set as the control temperature. A means of determination is provided.

Further, a multi-room air conditioning system according to another invention of the present invention is based on the above system, and includes a main display device in the main thermostat, a room display device in the room thermostat, and a main display device in the thermostat control device. A main display means for displaying the current set temperature of the main thermostat on a room display device, and a room display means for displaying the current temperature or control temperature of the corresponding room on a room display device? It's what I set up.

[For production]

In this invention, a desired temperature in a particular room can be set via a room thermostat placed in that room, and this set temperature is applied as a control temperature only for that room. or.

On the other hand, when a certain temperature is selected on the main thermostat, the uniform temperature for all different S-rooms is given by the temperature set on the main thermostat, and that temperature is applied to all different rooms. Furthermore, if the set temperature is subsequently changed in a specific room, the changed current set temperature is applied as the control temperature only to that room.

Further, in another aspect of the present invention, the main display device displays the current set temperature of the main thermostat, and each room display device displays the current temperature or control temperature of the corresponding room.

〔Example〕

Embodiments of the present invention will be described in detail below based on one drawing. FIG. 1 is a block diagram including some circuits showing an embodiment of the present invention, and reference numeral (1) is a main thermostat that is installed in a living room etc. and sets the temperature of multiple rooms at the same time. , a main temperature setting means, ie, a variable resistor (2), for obtaining a signal corresponding to the current set temperature (TM/) selected by the main thermostat (1), a "heating" signal rMMV), a "cooling" signal ( The main mode switching means, that is, the three-point switch (, 71), and the current set temperature (TM It has a main display device (4t) consisting of a liquid crystal etc. for displaying /). (R/) to (RJ) are a variable resistor (2) and a three-point switch (3).

This is a resistor connected between the power supply (+■).

(5) is a room thermostat that is installed in each room to set the temperature for each individual room, and although not shown in the drawings, a similar configuration is installed in each room. This room thermostat f&lH1 The temperature of the room to which the room thermostat itself belongs, that is, the current temperature (TR4)
temperature detection means, that is, a thermistor (6), and room temperature detection means, a variable resistor (7), for obtaining a signal corresponding to the current set temperature (TR/) selected by the room thermostat (j). ), a room mode switching means, that is, a two-point switch (f), for obtaining a status signal (collectively referred to as M) corresponding to "on/off" of the air conditioning operation of the corresponding room; It has a room display device (9) consisting of a liquid crystal etc. for displaying the current temperature of the room (TR40) and the controlled temperature (TR,?) of the room. (R#) to (R4) are thermistors (4), a variable resistor (7), and a resistor connected between the lever point switch J (fl and the power supply (+V)).

(10) is the multiplexer], main thermostat C
/) current set temperature (TM/), room thermostat (
current set temperature (TR/) and current temperature (TR&) of
The input signals corresponding to each are distinguished on a time-division basis.

(//) is an A/D converter, multiplexer (10
) into a digital signal! processing.

(/, 2) is a thermostat control device composed of a microcomputer, and each temperature (TM /), (TR/) and (TRI signals are input. Also, the thermostat control device (/2) presets the current set temperature (TM/) and (TR/) of the main and room thermostats, respectively. The memory as a storage means always stores the temperatures (TM) and (TR), and these previous set temperatures rTM2) and (TR) are always compared with the current set temperatures (TM/) and (TR/), respectively. According to this, it is possible to detect whether or not there is a change in the current set temperature (TM/) or (TR/)N, and when there is a change, the current set temperature after the change is immediately set as the control temperature (TR, 7). The main display device (4
'l K is the current set temperature (TM
/) and the room display device (?) displays the current temperature (TRI and control temperature (TR, 7) of the corresponding room).
Each is output.

(/J) is a temperature switching device interconnected with the thermostat control device (/2) via the bus (C). A signal corresponding to the number of rooms (R1) is output, and the thermostat control device (/2) outputs the status signal (MM) of the main thermostat (/), the status signal (goods) of each room thermostat (R1), and the status signal (MM) of the main thermostat (/). Control temperature (TR
3) and a signal corresponding to the current temperature rTR&). According to these input signals, the temperature control device (/3
) is controlled by appropriately controlling the opening and closing of air dampers (not shown) leading to each room.1 As is well known, the current temperature ('I'RI) of each room is adjusted so that it matches the control temperature (TRJ) of the room. temperature control.

Figure 1 is a flowchart showing the specific procedure of the storage means and temperature detection means in the thermostat control device (/2), and Figure 3 is the operation of the room display means in Figure 1, that is, the means for performing the subroutine "room display". It is a flowchart figure.

The specific operation of the thermostat control device (/2) will be described below with reference to the flowcharts in FIGS. 1 and 3. First, in step (S-0), the loop variable is initialized to zero in order to count the room numbers ■ from No. 7 to No. R. In step C82/), the status signal (MM) of the main thermostat (1) is read. Depending on each state, a heat pump or a gas burner (both not shown) is driven via the temperature control device fl (/3) in the case of "heating",
@Cooling”, the heat pump is driven for cooling, and @Off”.
In this case, turn off the single point switch (r) in all rooms.

In step (B2), from the temperature control device (/3) to the bus (
/4') to read the total number of rooms R set. In step (S23), the room number is set, and the following steps (S-4I) to (S-A) are executed starting from room No. 7.

Room thermos (S) in step (ssl)
Step (S) reads the current temperature rTR4((I)) of the room, and step (826) executes the subroutine "room display" in FIG.

In step (8 cores a), ff1l subroutine "room display", in step (B!rO) the temperature control device (/3
) and counts seconds at step (EJ/). In step (8j1), seconds are converted into time increments of 5 seconds, and the room display device (9) displays the control temperature (TRJ) and the current temperature rTR&) alternately every 3 seconds. With Tsubu (S! 13'), between O-S seconds, %10~/3 seconds......, 30~! ! The control temperature (TRjiIl) is displayed for seconds, and step (8
3II) for 3 to 10 seconds...! For 3 to Aθ seconds, the current temperature of the room (T
R4' (Il) is folded back and displayed, and the process returns to the main flowchart of FIG. This alternate display.

This is done to save the area of the room display device (9).

If there is sufficient display area, they may be displayed simultaneously.

In step (S), determine whether the room number has changed to the Rth (C, last room) or not, and if it has not reached the Rth, return to step (2J) and proceed to the next I+/th room. Repeat the above operation.

When it is recognized in step (8:17) that the Rth temperature has been reached, the current set temperature ('I'M/) of the main thermostat (1) is read in step (B2r). Step (S j
? ), the set temperature of the main thermostat (1) immediately before the current setting stored in advance in the memo IJ (not shown), that is, the previous set temperature ('I'MJ), is compared with the current set temperature (TM/'). .

When there is no change in the current set temperature (TMi), that is, TM/=
Toki of TM Co., in step (E330), sets the loop variable (
Initialize Il to zero and step (S,?/)
While increasing the room number sequentially from /, it is determined whether or not there is a change in the current set temperature of each room. First, in step (S31), the current set temperature (TR/(13)) of the RU A-V-man-hour stat (3) of the room with man-hours is read.In step (F33J), the current set temperature (room thermostat immediately before setting) (j) set temperature.

That is, the previous set temperature (TRJ(Il)) and the current set temperature (
'I'RbeIl) to determine whether there is a change in the set temperature. (Room thermostat of room No. 1)
(When there is a change in the current set temperature (Tx/(1)) of
When it is determined that there has been a change, the control temperature (T
R,? (IN) is.

The current set temperature is changed to rTu/(rl) and stored in the memory. Control temperature after this change ('I'R, 7(I))
Accordingly, the temperature control device (/3) controls the temperature of the room. Also, in step (F1a), set the preset temperature (
TRJ (1)) New current set temperature (TR Be I)
) is memorized. In the step (S, ?, 7), if there is no change in the current set temperature (TRI(1)), that is, TRI
(When Il=TR(I), steps (si) and (S, 7r) are skipped and steps (83&'
).

In step (8, 3 & ), return to step (Sj/) until the first room number reaches R, and repeat the steps (83) to (83). Complete the above operations for all rooms. Then, when I=H is reached.

Return to step (S-○)K.

On the other hand, in step (829) it is determined that TM/ζTM2, and the current set temperature (TM/) of the main thermostat (1)
If it is determined that Kf has been overlooked, step (837)
) to display the current set temperature (TM/) after changing to the main display (ri)
' to display. This main display (example display is.

It will not change until the current set temperature (TM/) is changed again. In step (Bag>), the loop variable January is initialized to zero, in step (EIJ9), the room number is incremented sequentially, and in step (SaO), the control temperature (TRj (Il)) of the room number is set to the main thermostat ( 1) Change to the current set temperature (TM/) and store it in the memory.Step (S, ?) until I=R at step (sg/).
? ) and (SaO) and change the control temperatures (TR, 7) of all rooms by the current set temperature (TM/)Kf. Therefore, the temperature control device (/3) controls the temperature of all rooms according to the new control temperature (TRJ).

In step (E3'l:1), the main thermostat (1
) as the previous set temperature (1M2) and the current set temperature after change (
TM/) is stored. That is, the preset temperature (TRJ) K
The set temperature immediately before the setting change is always stored. Then, the process returns to step (SSO) and the execution of the main flowchart in FIG. 1 is resumed. The speed of this recombination depends on the microprocessor processing speed of the thermostatic suspension, but typically has a loop period of less than 7 seconds. Therefore, in the flowchart of FIG. 2, the current set temperature (T) of the main thermostat (1) is
After determining whether there has been a change in the room thermostat (TRI), it is determined in step (S33) whether there has been a change in the current set temperature (TRI) of the room thermostat (M/). Current set temperature ('I'M/)
is the current set temperature (TRI) of the room thermostat (3)
) There is no priority.

Whenever the current set temperature ('I'M/) or (TRI) is changed by the user, regardless of whether it is a knob, main or room thermostat, it is compared with the previous set temperature (TMJ) or (TRJ). (step (82'!) or (8, 7, 7)), the new current set temperature is always given to the temperature control device (/3) as the control temperature (TR, 7). Become. Therefore, the main thermostat (1)
The current set temperature (T
Even if there is a mismatch between M/) and (TRI).

Since priority is given to the one operated last by the user, no problem occurs.

For example, the state (MM) of the main thermostat (1) is set to heating (MM/)K, and the current set temperature (TM/) is 76°C.
Suppose that it is set to . At this time, "76°C" is displayed on the main display (<'l) according to step (F3.3), and the status signal M of the room thermostat (j) is on, that is, in the room in the operation mode. Warm air is supplied to the temperature control device (/3).The current temperature of the room (TRI is 72
℃, the room display device shows the step (S2
6) "76°C" of the control temperature (TR,?) and "72°C" of the current temperature (TR) are displayed alternately every 3 seconds. Needless to say, this current temperature (TRQ) reaches the control temperature (TR, 7) over time.

Here, the user selects the room thermostat for room number 7 (
1) Set the current set temperature (TRI(Il) to 20℃,
The room thermostat in the first room (the current temperature setting)
If TRI(ko)) is set to Yuj'C, it is determined in step (S, ?, 7) that the current set temperature has been changed in the corresponding rooms No. 7 and No. 1, respectively. . Therefore, in step (831), the control temperature of the 7th room (rRJ(Il) is changed to -0°C, and the control temperature of the 1st room (TR, 7(jl) is changed to 0°C). Ru.

This change can be immediately confirmed by the user on each room display device (WA).

Next, the user selects the current setting temperature (
TM/) is changed to -1°C, the change is iI! in step (S Cobb). ! is recognized and the step (S110
), the control temperature (TRJ>) of all rooms including the aforementioned rooms No. 7 and No. 1 is changed to 22°C.

This current set temperature (TM/) is displayed on the main display (for example, in step S37), and the control temperature (TR
，? ) are displayed on each room display device (ri), so users in each room can immediately recognize that there has been a change.

Therefore, if the user of the first room, for example, who is unsatisfied with the controlled temperature here, changes the current temperature setting (TFI(a)) of the room thermostat to 71°C, then the Since the set temperature (TRJ(ko)) was -yo℃, this change was recognized again in step (833>),
Current set temperature after change in step (Hiro 83), i.e. /
℃ becomes the control temperature (TRj(21)) of the first room.

Also, if you want to return the control temperature to the same temperature as the preset temperature of the room thermostat, you can move the variable paper resistor (7) a little and then return it.

Therefore, the temperature setting operation of the thermostat by the last user always takes priority and the control temperature (TR, ?) is obtained. The temperature control device (/3) controls the control temperature (TRj) and current temperature ('I'Ri) for each room, as well as the state r.
MM) or information regarding M to the thermostat control device f(
/) and continues controlling so that each room reaches the controlled temperature (TR, 7).

In this multi-room air conditioning system based on BAK, the operation of the individual room thermostat (1) is related only to the corresponding room, whereas the operation of the main thermostat (1) is related to the control of all rooms. 1. Essentially, it achieves priority moped displacement detection according to the last operated or finished operating thermostat.

It is true that the control temperature (TR3') of each room set by the room thermostat [3] can be changed by operating the main thermostat (1).
This is not a problem for residential air conditioning systems intended for general households. This is because it is thought that there is sufficient mutual communication between the zero users.

〔Effect of the invention〕

In this invention, even if the current set temperature of the general, main, or room thermostat described above is changed, priority is always given to the temperature that was operated last, so that the temperature that the user currently desires The advantage is that the control temperature can be set at any time.

Another invention of the present invention is to display the current set temperature on the main thermostat, and display the control temperature and current temperature on the room thermostat, so that the user can be sure that the control temperature is set to the desired temperature. can be easily checked, and when the temperature controlled in each room is changed by the main thermostat, the user can immediately receive an i! ! ! It has the effect of being recognizable.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a partial circuit of an embodiment N of the present invention, FIG. 2 is a flowchart showing the operation of the thermostat control device shown in FIG. 1, and FIG. ” (Step (S26)). (c) Main thermostat, (c) Variable resistor for main temperature setting, (c) Main display, (j) Room thermostat), (6) Thermistor for temperature detection , C7)...Variable resistor for setting room temperature. (9)...Room display device, (/ko)...Thermostat control device, (/3)・Temperature control device, (TM/)・
-Current set temperature of the main thermostat, (TM2)...Preset temperature of the main thermostat, (TFI) @Current set temperature of the room thermostat, (TFI)...Preset temperature of the room thermostat, (T1.7) Φ control temperature,
rTRl...Current temperature, (S Cobb)..."Room display"
A subroutine that executes. (S19) Main station Mostat setting temperature judgment stencil 7
', (S33)-Room thermostat setting temperature determination step, (3jII)-a temperature determination step. (8J!r) -- Memory step, (B,)ri)...Main display step, (SaO)...Temperature determination step, (Be
KO)・O memory step, (EIO)@”clock input step, (B!r2)-Sound switching step. Figure 3 Procedural amendment “Spontaneous” Showa January 60, , Z2-

Claims (4)

[Claims] (1) A main thermostat that sets the main temperature of multiple rooms at once, a room thermostat that is installed in each of the multiple rooms and sets the room temperature for each room, and a current set temperature from the main thermostat and room thermostat. In a multi-room air conditioning system, the thermostat control device includes a thermostat control device that determines a control temperature by inputting a signal corresponding to the control temperature, and a temperature control device that controls the temperature of the plurality of rooms according to the control temperature. , storage means for constantly inputting signals corresponding to the respective current temperature settings from the main thermostat and the room thermostat and storing the current temperature settings as the previous temperature settings, and storing the previous temperature settings and the current temperature settings. A multi-room air conditioning system comprising: temperature determining means for comparing the control temperatures and changing the control temperature to the current set temperature at which a discrepancy ultimately occurs. (2) The temperature determining means includes a main determining means that determines whether the current temperature setting of the main thermostat has changed, and a room determining means that determines whether the current temperature setting of the room thermostat has changed only when this main determining means determines that there is no change. A multi-room air conditioning system according to claim 1, characterized in that the system comprises: (3) A main thermostat that sets the main temperature of multiple rooms at once, a room thermostat that is installed in each of the multiple rooms and sets the room temperature for each room, and current settings from the main thermostat and room thermostat. It consists of a thermostat control device that determines the control temperature by inputting a signal corresponding to the temperature, and a temperature control device that controls the temperature of the plurality of rooms according to the control temperature,
The thermostat control device includes a storage means for constantly inputting signals corresponding to the respective current temperature settings from the main thermostat and the room thermostat and storing them as the previous temperature settings, and storing the previous temperature settings and the current temperature settings. In the multi-room air conditioning system, the main thermostat is provided with a main display device, and the main thermostat is provided with a main display device; The thermostat is provided with a room display device and a temperature detection means for detecting the current temperature of the room to which the room thermostat belongs, and the thermostat control device includes means for displaying the current set temperature of the main thermostat on the main display device; A multi-room air conditioning system comprising: means for displaying the control temperature or the current temperature of the corresponding room on a display device. (4) The means for displaying on the room display device includes means for inputting a clock signal from the temperature control device, and means for alternately switching and displaying the control temperature and the current temperature at a predetermined period based on the clock signal. Claim 3 including
Multi-room air conditioning system as described in section.