JP2753150B2 - Power demand controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power demand control device for preventing an excess of electric power of building equipment.

[0002]

2. Description of the Related Art In recent years, the electric energy of building equipment has been
With the introduction of A, it is steadily increasing, and interest in energy saving is increasing again. In view of these circumstances, there is a demand for a device for controlling demand of a building efficiently so as not to exceed the contracted power amount, and to reduce the contracted power amount as much as possible without lowering the building environment.

Conventionally, this kind of power demand control device has
A configuration as shown in Japanese Patent Application Laid-Open No. 61-231836 was common. Hereinafter, the configuration will be described with reference to FIG.

[0004] As shown in FIG.
01, a power meter 102 and a power meter 103 required for demand prediction are connected as inputs, and daylight sensors 104a and 104b installed near windows of a building.
Is connected. The demand control device main body 1 is connected to control terminals 107a and 107b for controlling the lights 105a, 105b, 106a and 106b.

In the above configuration, the demand control device main body 1
In 01, the power consumption is monitored by the received power meter 102,
If the available power is calculated so that the used power does not exceed the contracted power and the current used power measured by the receiving power meter 103 is over, the control terminals 107a and 107b illuminate to reduce the power load. 105a, 105b, 1
06a and 106b are controlled. The control at this time is performed on the devices registered in advance as the control target in the demand control device main body 101. Regarding the control priority, the priority of the lighting device is determined by the daylight illuminance measured by the daylight sensors 104a and 104b. Had been decided.

[0006]

In such a conventional power demand control device, when the power consumption peaks,
Lighting 105a, 105b, 1 registered as a control object
06a and 106b may suddenly disappear irrespective of the presence or absence of a occupant, and there is a problem that the building environment is significantly reduced.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to prevent unnecessary operation equipment in an unmanned room from being stopped and turned off, thereby preventing a remarkable decrease in a building environment and preventing an excess of electric power.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above objects, the present invention provides an air conditioner and an illuminator for air-conditioning a room, a start / stop terminal for controlling the start / stop of the illuminator, A pyroelectric infrared sensor that senses the attached human body,
A sensor terminal for receiving a signal from the pyroelectric infrared sensor, communication control means for communicating with the air conditioning device, the start / stop terminal, and the sensor terminal; A measurement input unit connected to the dynamometer; an arithmetic processing unit connected to the measurement input unit and the communication control unit for calculating usable power so that the used power amount does not exceed the contracted power amount; and the pyroelectric type It is configured to include a priority determining unit that preferentially controls demand in a room where no person is present in the room with an infrared sensor, and a registration unit that registers a device to be controlled.

[0009]

According to the present invention, discomfort is given to the occupants due to the above configuration.
The power demand control can be performed without causing inconvenience and without lowering the building environment.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.

As shown in the figure, a power demand control device main body 1 has a measurement input means 4 comprising a counter connected to a received watt-hour meter 2 and a received watt-hour meter 3, and calculates a measured value from the measurement input means 4. The communication control means 6 comprising a serial communication control IC connected to the device to be controlled by a communication line 5 provides a rank determining means 7 comprising a microcomputer for determining the presence or absence of a person in each room of the building, and a power consumption amount. Receive available power so as not to exceed the contracted power amount.
Processing means 8 for calculating from the measurement input means 4
And a registration means 9 comprising a dip switch for registering a demand control target device.

The communication control means 6 includes a communication line 5 for connecting the air conditioners 10a, 10b, 10c, and 10d, the start / stop terminals 11a and 11b, and the sensor terminals 12a and 12b.
Are respectively connected, and the start / stop terminals 11a, 11b
Are connected to illuminators 13a, 13b, 13c and 13d, and pyroelectric infrared sensors 14a and 14b are connected to sensor terminals 12a and 12b, respectively.

The operation of the above configuration will be described. With the above configuration, the power demand control device main body 1 receives the measured value from the received watt-hour meter 2 with the counter 4 and monitors the power consumption, and checks the available power so that the power consumption does not exceed the contracted power. Is calculated by the arithmetic processing means 8 from the power receiving wattmeter 3 through the measurement input means 4 and if the power currently used measured by the power receiving wattmeter 3 is exceeded, the air conditioners 10a to 10d and Illuminator 13a ~
13d limit control is performed. The control at this time is performed through the communication control means 6 for the equipment whose address has been registered in the registration means 9 as a control target in the power demand control device body 1 in advance. The presence / absence of a room occupant sensed by 14a, 14b is transmitted to the communication control means 6 of the power demand control device main body 1 by the sensor terminals 12a, 12b, and the rank determination means 7 determines. For example, when it becomes necessary to perform demand control, the pyroelectric infrared sensor 14a senses that the room is unoccupied, and a signal is output to the sensor terminal 12a.
Communication control means 6, order determination means 7, and arithmetic processing means 8; and the microcomputer determines the order determination means 7, arithmetic processing means 8 in the air conditioner 10 in an unmanned room.
illuminator 1 via a, 10b and start / stop terminal 11a
Demand control can be performed by transmitting a stop command to the devices 3a and 13b to each device through the communication control means 6. In the embodiment, each of the air conditioning equipment, the start / stop terminal, and the sensor terminal is used, but a plurality of terminals may be installed.
There is no difference in the effects.

As described above, according to the power demand control device of the embodiment of the present invention, demand control can be performed in a room where a occupant is located without giving the occupant a discomfort.

[0015]

As is apparent from the above embodiment, according to the present invention, when power demand control is performed, unnecessary equipment in an unmanned room can be stopped without giving the occupants an unpleasant feeling. It is possible to provide a power demand control device having an effect of saving energy.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a system of a power demand control device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a system configuration of a conventional power demand control device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric power demand control apparatus main body 2 Power reception wattmeter 3 Power reception wattmeter 4 Measurement input means 6 Communication control means 7 Order determination means 8 Arithmetic processing means 9 Registration means 10a, 10b, 10c, 10d Air conditioner 11a, 11b For starting and stopping Terminals 12a, 12b Sensor terminals 13a, 13b, 13c, 13d Illuminators 14a, 14b Pyroelectric infrared sensor

Claims (1)

(57) [Claims] 1. An air conditioner that air-conditions a room, an illuminator, a start / stop terminal that starts / stops the illuminator, a pyroelectric infrared sensor attached to the room and configured to sense a human body, A sensor terminal for receiving a signal from the pyroelectric infrared sensor, the plurality of air conditioners, the plurality of start / stop terminals, the plurality of sensor terminals, and the air conditioner
The temperature of the air conditioner, the start / stop of the air conditioner and the illuminator, and the sensor signal of the pyroelectric infrared sensor.
Communication control means for receiving and sensing the measurement result , receiving power meter, measurement input means connected to the received watt-hour meter, power consumption connected to the measurement input means and the communication control means There arithmetic processing means for calculating the available power so as not to exceed the contracted electric power amount, Oyo the air conditioning equipment
And a switch as a controlled device in the illuminator.
Registering means for registering a device to be controlled;
The registration method of a room where no one is
Demand control is given priority to the control target devices registered
Power demand control device comprising: a ranking determining means connected to the registration means .