JP3069019B2 - Device operation mode switching method and control device - Google Patents

Abstract

PURPOSE: To easily and rapidly set an equipment operation mode only with an on-off pattern of an electrical power of a power supply switch. CONSTITUTION: One common power supply switch 4 for use in supplying an electrical power from a power supply 3 to a plurality of devices 2 is turned off or on, a pattern corresponding to the number of times of turning off/on, or times is generated, this pattern is inputted to a micro-computer 8 supplied with electrical power from a back-up power supply 7, and then the micro-computer 8 changes over an operation mode of the device 2 under a comparison between the pattern and the pre-stored pattern.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for switching operation modes of an apparatus for arbitrarily setting operation modes of an air-conditioning apparatus, a control target apparatus, and the like, and performing operation in the set operation mode, and air conditioning control. The present invention relates to an operation mode control device for a device such as a device and an air conditioning controller.

[0002]

2. Description of the Related Art A controller (controller) for controlling a device to be controlled has a set value and a mode for determining a control condition, so that a user can set it according to the purpose.

Here, an air conditioning controller using a fan coil unit as a device to be controlled will be described as an example. The fan coil unit includes a coil (heat exchanger) through which a heat medium such as cold water or hot water flows, and a blower that blows the coil. A control valve is provided in the flow path near the coil, and the flow rate of the heat medium is changed according to the degree of opening, or the flow rate is changed according to the number of revolutions of the blower motor, thereby exchanging heat between the heat medium and room air. The degree can be changed.
The air-conditioning controller allows the user to input and set the desired room temperature setting, compares this setting with the room temperature measured by the room temperature sensor, and opens the control valve of the fan coil unit so that the room temperature approaches the set value. It controls the degree and the rotation speed of the blower motor.

In such an air conditioner, since the control operation is different between the cooling operation and the heating operation, it is necessary to switch the operation mode depending on the season. That is, as for the control valve, in the cooling operation, since the cold water flows through the coil, as shown in FIG.
In the above case, the control valve is kept open, and is controlled to close when the value falls below the set value SP (the temperature difference between the valve opening operation and the valve closing operation is an operation gap for preventing chattering).

On the other hand, in the heating operation, since hot water flows through the coil, the control valve is opened when the room temperature is equal to or lower than the set value SP as shown in FIG. Controlled to close. That is, the operation is the reverse of that in the cooling operation.

Normally, the change of the set value such as the operation mode switching and the room temperature change is performed by a switch provided in the air conditioning controller. Alternatively, air conditioning controllers of a plurality of air conditioners are connected to a centralized operation panel via communication lines, and the operation is performed by operation from the centralized operation panel.

[0007]

However, when an air-conditioning controller is installed for each floor and each room, such as a large building, condominium, hotel, etc., the above-mentioned cooling mode and heating mode are switched. In addition, it is necessary for the maintenance manager to switch the switch at each change of the season and walk, and there is a problem that a great deal of labor is required.

In many cases, the changeover switch between the cooling mode and the heating mode is concealed in an air conditioner or the like so as not to be operated by ordinary residents without permission. In some cases, the operation may cause a problem in air conditioning control. Further, it is desired that such an air conditioning controller be small, but there is a problem that the built-in changeover switch causes a barrier to miniaturization of the apparatus.

Further, as described above, in the case of switching between the cooling mode and the heating mode by a signal from a remote place using a centralized control panel, wiring of a remote signal and a circuit for transmitting and receiving a remote signal are required. Therefore, there is a problem that an increase in the number of construction steps and an increase in cost due to the complicated transmission / reception system are unavoidable, and that the remote signal is easily affected by noise from the power supply line.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and the operation mode and set values of a device can be easily and quickly changed only by supplying a power pattern by turning on and off a power switch. It is an object of the present invention to obtain a method of switching the operation mode of a device that can be set to the operation mode.

It is another object of the present invention to provide a device operation mode control device which can set the operation mode of the device at low cost with small and simple components.

A further object of the present invention is to provide an operation mode control device for a device capable of easily and quickly setting an air conditioning controller to one of a cooling operation mode and a heating operation mode.

[0013]

According to a first aspect of the present invention, there is provided a method for switching an operation mode of a device, in which a common power switch for supplying power to a plurality of devices from a power source is cut off or turned on, and the number or time of the cut-off or turning on. Is input to a microcomputer supplied with power from a backup power supply, and the microcomputer switches the operation mode of the device by comparing the pattern with a previously stored pattern.

According to a second aspect of the present invention, there is provided an operation mode control device for a device, further comprising a power supply state detection circuit for detecting a pattern according to the number or time of power-off or power-on,
A microcomputer supplied with power from a backup power supply switches the operation mode of the device by comparing the pattern with a previously stored pattern.

According to a third aspect of the present invention, there is provided an operation mode control apparatus for a device, comprising: a power supply state detection circuit for detecting a pattern corresponding to the number or time of power-off or power-on; and a microcomputer supplied from a backup power supply.
The air-conditioning controller is switched to one of the cooling and heating operation modes by comparing the pattern with a previously stored pattern.

[0016]

According to a first aspect of the present invention, there is provided a method for switching an operation mode of a device, comprising comparing a pattern corresponding to the number and time of power-off and power-on with a preset pattern, and setting an operation mode according to the comparison result. Allow the equipment to start running.

According to a second aspect of the present invention, in the operation mode control apparatus for a device, a power supply state detection circuit detects a pattern corresponding to the number or time of power-off or power-on, and compares the pattern with a pattern preset in a memory. Are compared by a microcomputer, and the operation mode of the device can be switched according to the comparison result.

According to a third aspect of the present invention, in the operation mode control apparatus for a device, a power supply state detection circuit detects a pattern corresponding to the number or time of power-off or power-on, and compares the pattern with a pattern preset in a memory. Are compared by a microcomputer, and the operation mode of the air-conditioning controller can be switched according to the comparison result.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numerals 1A to 1N denote a plurality of air conditioning controllers, and reference numeral 2 denotes a control target device whose operation mode is switched by each of these air conditioning controllers 1A to 1N.

Reference numeral 3 denotes a commercial power supply;
, For example, one power switch of a manually operated type provided on a switchboard. That is, each of the air conditioning controllers 1A to 1N includes the power supply 3 and the power switch 4
To share.

Further, in each of the air conditioning controllers 1A to 1N, reference numeral 5 denotes a power supply circuit for rectifying the voltage from the power supply 3 and adjusting the voltage as necessary. Reference numeral 6 denotes a power supply switch connected to the power supply circuit 5. 4 is a power supply state detection circuit that detects the state (pattern) of power supply by the power supply circuit 4.

Reference numeral 7 denotes a backup power supply such as a capacitor or a battery connected in parallel to the power supply circuit 5;
During the power holding time by the backup power source 7, the power switch 4 is turned on again, and the control target device 2 is set to the heating or cooling operation mode according to a pattern corresponding to the number or time of turning on and / or off. Microcomputer.

Reference numeral 9 denotes a temperature setting device for setting a temperature for heating or cooling, and the like, and 10 denotes a storage element for storing various data such as data processed by the microcomputer 8.

Next, the operation will be described. It is assumed that all of the air conditioning controllers 1A to 1N have the control target device 2 initially set to the cooling operation mode when shipped from the factory. Also,
At the time of factory shipment, power is supplied to the air-conditioning controller for operation check and the above-mentioned initial setting, so that the backup power supply 7 is also charged at the same time.

First, when the power switch 4 is turned on at the construction site, power is supplied from the power supply 3 to each circuit portion in each of the air conditioning controllers 1A to 1N and the device 2 to be controlled.
Each becomes operational. If the backup power source 7 has a shortage of charge, it is rapidly charged,
A backup can be made in a short time. Then, the cooling operation is started in the operation mode.

This process is shown in FIG. That is,
Is once powered factory, when the power switch 4 after charging to said backup power supply 7 is interrupted at the timing t ₀ shown in FIG. 2, the power (AC100V) supplied from the power source 3 to the respective circuit portions but is cut off, the power supply holding time in T _H which is defined shorter than the backup time of the above backup power source 7 timer operates, from the backup power source 7 the power supply to each circuit portion is continued, the control target The setting change function of the device 2 is maintained.

If the power switch 4 is not operated during the power holding time T _H by the backup power source 7,
After the lapse of time, the power supply to each of the circuit portions is automatically stopped.

[0028] Then, after the factory shipment (of course, the power supply holding time T _H after) is construction site, the power switch 4 is turned, thereby the air-conditioning controller 1A~1N from the power source 3
When power is supplied to each circuit portion and the control target device 2, the control target device 2 starts operating in the initially set cooling operation mode.

On the other hand, in construction sites, after charging the backup power supply 7, at a timing t ₀ after the power supply holding time T _H in interruption of power supply 3, as shown in FIG. 2 (c), the power switch 4 again Is input at the timing t ₁ , the pattern monitoring time T preset by the microcomputer 8 from this time to the timing t _2.
1 is counted down by the internal timer. This pattern monitoring time T ₁ is an operation mode setting period (setting mode) of a device such as the controlled device 2. The microcomputer 8 switches to the cooling operation mode based on the comparison between the above pattern and the previously stored pattern.

That is, if the power switch 4 is turned off once at each of the timings t ₃ and t ₄ during the above-mentioned pattern monitoring time T ₁ , the ON / OFF power pattern at this time is used for determining the operation mode. The information is taken into the microcomputer 8 as input information. The microcomputer 8, programmed to set the operation mode to the heating operation when it is turned off twice during the pattern monitoring time T ₁ is registered.

Therefore, the microcomputer 8 changes the operation mode to the heating operation as a result of comparing the input information with the registration information. Return to the operation mode after the lapse of the pattern monitoring time T _1, so that the controls to resume the operation of the control target device 2 in heating operation.

The pattern monitoring time T ₁ shown in FIG.
In, a power pattern occurs only when the power switch is turned on from the power supply. As a result of comparing the input information with the registration information, the microcomputer 8 does not change the setting because the information does not match the registration information, and starts the operation of the controlled device 2 in the cooling operation mode as initially set.

As described above, the operation mode corresponding to the ON / OFF power pattern is changed for a plurality of devices such as the control target device 2 by operating one power switch 4 provided on the switchboard of the command room. Can be set.

The power pattern, which is input information for determining the operation mode, may be, for example, as shown in FIG.
(A), the heating operation mode causes the two consecutive off times of the power switch 4 in the pattern monitoring time T _1, whereas, the power switch 4 as a cooling operation mode shown in FIG. 3 (b) The number of on and off times may be given a meaning, such as making the number of off times of four consecutive.

Further, as a power pattern which is input information for determining other operating modes, for example, as shown in FIG. 4 (a), different on the power switch 4 in the heating operation mode of the pattern monitoring time T _1, Off time T _a ,
_Tb and _Tc are set, and as shown in FIG. 4B, in the cooling operation mode, different ON and OFF times _Td , _Te and _Tf of the power switch 4 are set to ON. , Off may be given a meaning by a combination of each time.

[0036]

As described above, according to the first aspect of the present invention, a common power switch for supplying power to a plurality of devices from a power supply is turned off or turned on, and a pattern corresponding to the number or time of the cutoff or turning on is set. The operation mode of the device is switched by inputting the power to a microcomputer supplied from a backup power source and comparing the pattern with a pattern stored in advance by the microcomputer. There is an effect that an operation mode of the control device can be easily and quickly set only by supplying the pattern.

According to the second aspect of the present invention, there is provided a power supply state detecting circuit for detecting a pattern corresponding to the number or time of power-off or power-on, and the microcomputer is supplied with power from a backup power supply. Since the configuration is such that the operation mode of the device is switched based on comparison with a pattern stored in advance, there is an effect that the operation mode of the device can be set with small and simple components at low cost.

According to the third aspect of the present invention, the power supply state detection circuit for detecting a pattern corresponding to the number or time of power-off or power-on and a microcomputer supplied with power from a backup power supply store the pattern in advance in memory. The air conditioning controller is configured to switch to either the cooling or heating operation mode based on the comparison with the changed pattern, so that it is possible to easily and quickly set the air conditioning controller to the cooling or heating operation mode. Has the effect.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a device operation mode control device according to an embodiment of the present invention.

FIG. 2 is a timing chart showing a power pattern for switching operation modes according to the present invention.

FIG. 3 is a timing chart showing another power pattern for operating mode switching according to the present invention.

FIG. 4 is a timing chart showing another power pattern for operating mode switching according to the present invention.

FIG. 5 is an explanatory diagram showing a control method of a flowing water control valve in a conventional fan coil unit.

[Explanation of symbols]

 2 Control target equipment (equipment) 3 Power supply 4 Power switch 7 Backup power supply (capacitor or battery) 8 Microcomputer

Claims (3)

(57) [Claims] 1. A common power switch for supplying power to a plurality of devices from a power supply is turned off or turned on, and a pattern corresponding to the number or time of the turning off or on is input to a microcomputer supplied from a backup power supply. A device operation mode switching method for switching the operation mode of the device according to a comparison between the pattern and a pattern stored in advance by a microcomputer. 2. A power supply state detection circuit for detecting power supply interruption or power supply, and a power supply from a backup power supply and comparing a pattern corresponding to the number or time of power supply power supply interruption or power supply with a previously stored pattern. A device operation mode control device comprising: a microcomputer for switching a device operation mode. 3. A power supply state detection circuit for detecting a pattern corresponding to the number or time of power-off or power-on, and an air-conditioning controller supplied with power from a backup power supply and comparing the pattern with a previously stored pattern. A microcomputer for switching to one of the cooling and heating operation modes.