JPH0363442A - Simultaneous controllers for air conditioners - Google Patents

Abstract

PURPOSE:To simultaneously control air conditioners, prevent reverse control, and realize control having a priority to stop operation by a method wherein monitoring signals from a plurality of indoor apparatuses are compared and when control signals are not in the same condition, control signals are transmitted only to the apparatuses of which monitoring signals are ON condition. CONSTITUTION:To a simultaneous controller 3, monitoring signals are provided and when even either a or b is ON condition, a transistor 5 is ON and a next transistor 8 is to be ON and a monitoring signal is transmitted to a remote controller 1 as a monitoring signal X on the same logic for each monitor of indoor apparatus. When monitoring signals from two apparatuses coincide with each other, the signals are transmitted simultaneously to partners and when not, the signal is only transmitted to ON side. By the successive connection of the same simultaneous controllers 3 at the signal receiving sides, one side of the two, simple and inexpensive simultaneous controller having a priority to OFF condition for a plurality of air conditioners can be realized.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention relates to a control device that simultaneously controls two or more sets of air conditioners. When controlling, a signal path line is installed from an operation unit called a centralized control to each air conditioner, and control signals are received and passed, or signals are simply transmitted to multiple air conditioners. Amo Below, we will explain an example of the conventional air conditioner mentioned above with reference to the drawings. In Fig. 5, the control signal generator is usually called a centralized control device and is connected to the indoor unit of each air conditioner via an adapter. ing. This connection is a two-way communication path, and even though a microcomputer control for two-way communication is installed on the central control device side, the indoor unit or adapter side receives its own address. It determines whether the signal is a control signal for itself and performs the corresponding action. It also returns the operation to the central control device through a communication path. In addition, even if the system is simpler than the conventional technology shown in Figure 6 (as shown in Figure 5),
The control signal sent from the signal generation side (wired remote control) is simply branched and transmitted to indoor units A and B at the same time.

Problems to be Solved by the Invention However, there are a number of problems with such conventional techniques. 1' with the prior art shown in Figure 5! , a centralized control device equipped with microcomputer control is required, and two-way communication technology is also required, so the system requires advanced technology and is expensive, making it difficult to control several units at the same time. In addition, the system required a separate power supply from the air conditioner to supply power to the central control device side and the two-way communication path.It was also costly, and the system had many issues such as restrictions during installation. In addition, in the prior art shown in FIG. 6, the control signal generation side only transmits the signal to ttL, and does not determine whether the indoor unit is in an operating state or a stopped state.1. Xo For this reason, when indoor unit A of the two indoor units is in operation and indoor unit B is in the stopped state, the run/stop signals from the remote controller are normally the same signal, but each is in an inverted state. In other words, when you want to stop an indoor unit that is in a temporary operating state, when you send a signal from the remote control, indoor unit A stops, but indoor unit B changes from a stopped state to an operating state. Normally indoor unit A
and indoor unit B should behave in the same way.In addition to the wired remote control for centralized control, when each indoor unit is connected to a wired remote control dedicated to that indoor unit, or a receiver for a wireless remote control at the same time. is easily reversed and malfunctions due to noise.
There may be cases where the signal transmission is incorrect, and in actual use, there is a strong possibility that the system will move in the opposite direction to the operator's intention. The machine is controlled all at once by a simple system, and individual operations are controlled by a dedicated remote control, and if the front part does not operate in the same way due to malfunction due to noise, L - degree can stop everything. Prevents reverse control. The object of the present invention is to realize stop-priority type simultaneous control.
Between the control signal generating side such as part 5 and the signal receiving side of multiple sets of indoor units, etc., do the monitor signals indicating the operating status from the multiple sets of indoor units (or signal receiving side) match or do not match? The monitor signal comparison means makes a judgment, and the monitor signal comparison means transmits the signal from the control signal generation side to both of the two sets of indoor units (or the signal receiving side) if they are in a match, and the monitor signal if they do not match. control signal inhibiting means for transmitting a control signal only to the ON side and prohibiting signal transmission to the OFF side;
The invention also includes a monitor transmission means for transmitting a signal obtained by ORing monitor signals from a plurality of sets of indoor units (or a signal receiving side) to a control signal generating side. Describes the monitor signal storage means that stores the monitor information of the monitor signal comparison means when a signal is input from the signal generation side.This information allows the initial judgment by the upper control signal inhibition means to continue while the signal is continuously input. According to the present invention, the monitor signals from multiple sets of indoor units (or signal receiving side) are compared, and if the control signals are in the same state, the monitor By transmitting the control signal only to the ON state of the signal, it is possible to prevent the reverse operation of multiple sets of indoor units.Also, by calculating the logical sum of multiple sets of monitor signals and transmitting the result to the control signal generator side. Itatabe The ability to build a system that can simultaneously control not only multiple sets of indoor units but also multiple indoor units as shown in Figure 4. Even if it is something that can be realized very easily and at low cost, - Simultaneous control device When connected to n indoor units, if only the nth unit is operated, L
Even if the monitor ON signal is not transmitted to the control signal generator, if the control signal generator sends a signal in this state, the control signal will be transmitted only to the n-th indoor unit and it will be in a stopped state. At this point, all the monitor signals are in the OFF state.If you send a control signal next time, the signal will be transmitted to all indoor units and turned ON all at once.The control signal to be transmitted will be transmitted as is. The simultaneous control device of the present invention is capable of transmitting all control signals such as detailed modes, temperature settings, air volume, timer settings, etc., rather than just signals for operation (automatic operation) and stop, as in the past. In this case, it is possible to supply power from each indoor unit without the need for a dedicated power supply. The initial judgment using the control signal inhibiting means is continued while the control signal is input continuously.If continuous run/stop signals from a wireless remote controller, etc. are received, and while the signals are received, the monitor signal of the indoor unit is This is a chicken word that does not allow or prohibit control signal transmission.This prevents the transmission path from being cut off due to the difference in delay time of monitor signals from each indoor unit. The purpose is to realize a system that can reliably prevent reversal operation even if the response time of the monitor signal from the indoor unit is long or there is a difference in the response time of the monitor signal from the indoor unit. This will be explained with reference to the drawings.

First, a first embodiment of the present invention will be described with reference to FIG. In the figure, 1 is a remote controller that generates and transmits control signals, 2 is an indoor unit of an air conditioner, and -
4 is the indoor unit of the second air conditioner, which supplies power to the sound control device 3 and receives a monitor signal in 5 circles. Monitor signals a and b of each indoor unit are O
The signal is set to be N when turned on and H when turned off, and this signal is connected to the base of transistor 5 via diodes 6 and 7, so that either a or b is turned on.
If the state is ○NL, the transistor 5 is turned on, and the next transistor 8 is turned on, and the monitor signal X is transmitted to the remote control l with the same logic as each indoor unit monitor. On the other hand, each monitor signal a, b is NANDA-to (1)
and (2), and one input signal of this NAND gate is the emitter signal of transistor 5. Therefore, NANDA-t (1) and (2)
The output (like the truth table in figure (b)), a,
When b does not match -"Ba, the NANDA output of the one with 0FFt and b is L. This NANDA
-t(1) and (2) are NANDA-t(3) and (
4) is input. Also, this NANDA-to (3)
The control signal from the remote control l is input to one input of and (4), and as shown in the truth table, the indoor unit 2
Controls permission and prohibition of transmission of signal A to the indoor unit 4 and signal B to the indoor unit 4. - Although the reception and transfer of signals between the sound control device 3 and the indoor unit 4 is performed by the photocoupler 9, and the logic is also unified with the transmission logic from the remote control l, next, referring to FIG. An example will be described. Components that are the same as those in the first embodiment are given the same reference numerals and their explanations are omitted. In FIG. As a result, the capacitor 11 is charged while the signal Therefore, when the signal The outputs Q of this flip-flop and 13 are input to NAND gates (3) and (4), respectively, and as explained in the first embodiment, permission for transmitting the signal X from the remote control 1, Effects of the invention even if prohibited As is clear from the above embodiments, the present invention achieves the following effects by providing one simultaneous control device with the configuration of the above embodiments.
When considering two air conditioners, if the monitor signals of the two monitors match, the signal is transmitted to the other at the same time, and even if they do not match, the signal is transmitted only to the one that is ON. However, the simultaneous control device with the above configuration can connect one simultaneous control device with the same configuration to one signal receiving side one after another, and as shown in Fig. 4. as shown
It is possible to realize OFF (stop) priority type simultaneous control for multiple air conditioners (limited to two indoor units), and it is not a complex AT system, but it can realize simple and inexpensive simultaneous control. , it is a very valuable system, and it is also very useful because it can transmit all the same control signals as the one-to-one remote control and the indoor unit, rather than the conventional start (automatic) / stop control. Also, by memorizing the permission/prohibition decision for signal transmission based on the monitor signal when a signal is input from the remote control side, it is possible to reliably prevent the indoor unit from reversing due to the time difference in response to the monitor signal. This makes it possible to realize very effective simultaneous control of continuous signals from wireless remote controllers and the like.

[Brief explanation of drawings]

FIG. 1 shows the configuration of the present invention. Blocks are shown in FIG. 2 (a,
), (b) are the circuit diagram and truth table showing the first embodiment of the present invention, and FIGS. 3(a) and (b) are the circuit diagram and truth table showing the second embodiment of the present invention. FIG. 4 is a configuration diagram showing an applied example of the present invention. FIG. 5 is a configuration diagram showing a conventional example. I... Remote control, 2, 4... Indoor unit (or signal receiving device), 3... - Simultaneous control device 5...
Transistor 6, 7...Diode, 9...
・Hotokabura, 12.13...Flip floss

Claims (2)

[Claims] (1) Monitor signals indicating the operating status from multiple sets of indoor units (or signal receiving sides) are transmitted between the control signal generating side such as a remote control or receiver and two sets of signal receiving sides such as indoor units. , a monitor signal comparison means for determining whether there is a match or a mismatch, and the monitor signal comparison means transmits a signal from the control signal generation side to both of the plurality of indoor units (or the signal receiving side) if they are in a match state. If there is a mismatch, the control signal is transmitted only to the ON side of the monitor, and the signal is prohibited from being transmitted to the OFF side, and the logical sum of the monitor signals from multiple sets of indoor units (or the signal receiving side) is provided. A simultaneous control device for air conditioners, comprising a monitor transmission means for transmitting a signal resulting from the (OR) operation to a control signal generation side. (2) Provide a monitor signal storage means for storing monitor information of the monitor signal comparison means when a signal is input from the control signal generation side, and according to this information, while the signal is continuously input, the control signal prohibition means is activated. A simultaneous control device for air conditioners according to claim 1, wherein the initial judgment is continued.