Classroom electrical control system

Abstract

A classroom electrical control system is disclosed, comprising: a processor that loads a control program to receive external sensing signals, performs processing, makes judgments, and outputs control commands; a controller that receives the control commands and is electrically connected to the electrical equipment from one or more control terminals; one or more human body sensors that detect whether anyone is in the classroom, are electrically connected to the processor, and transmit detection signals to the processor as the source of the sensing signals; the entire control system controls the electrical equipment, and through the execution of the control program, when at least one or more human body sensors detect that no one is in the classroom, it can output control commands to the controller to control the electrical equipment to shut down, thereby avoiding improper energy loss or waste.

Claims

1. A classroom electrical equipment control system, which is a control system for controlling electrical equipment in a classroom; This control system includes at least: A processor has a built-in database, a comparator, and a loaded control program. A setting / selector and a display are used to set or select the execution of the control program and to write and / or modify control data and / or information in the database. The execution of the control program involves receiving external sensing signals from one or more signal input terminals, performing processing, calculations, and / or comparing the control data in the database with the comparator to make a determination, and outputting the result as a control command from a command output terminal. A controller is electrically connected to the signal output terminal of the processor and receives the control command from the processor from the signal output terminal, processes and / or encodes it, and is electrically connected to the electrical equipment from one or more control terminals to control the electrical equipment to turn off, turn on and / or operate under a certain working condition; one or more human body sensors are installed in the classroom to detect whether there is a person in the classroom, and are respectively electrically connected to a signal input terminal of the processor to transmit human body detection signals to the processor as a source of sensing signals for the execution and judgment of the control program.

2. The classroom electrical control system as described in claim 1, wherein, The electrical equipment controlled by the controller includes at least one air conditioner, multiple lights and multiple electric fans installed in the classroom. The control program of the processor is selected by the setter / selector to execute the control program in a manual mode, and accepts the option instructions of the setter / selector to output the control command to enable or disable the controller.

3. The classroom electrical control system as described in claim 2, wherein, One of the processor's signal input terminals is electrically connected to a set of physical buttons.

4. The classroom electrical control system as described in claim 1, wherein, The one or more human body sensors are one or a combination of passive infrared, millimeter-wave radar, active microwave, ultrasonic, or image / visual human body sensors.

5. The classroom electrical control system as described in claim 2, wherein, The control system also includes an ambient temperature detector and an illuminance meter installed in the classroom, which are electrically connected to a signal input terminal of the processor. The detected classroom temperature signal and classroom illuminance signal are transmitted to the processor as another source of sensing signals for the execution and judgment of the control program. The control program of the processor is executed in automatic mode by the setting / selector. It reads the temperature control data, illuminance control data and control schemes pre-written in the database, compares them with the classroom temperature signal and classroom illuminance signal data through the comparator, determines whether to use a control scheme in the database, generates a control command output to the controller, and controls whether the at least one air conditioner, the multiple lights and / or the multiple electric fans are turned on.

6. The classroom electrical control system as described in claim 5, wherein, When the processor's control program is executed in automatic mode, the database contains at least one illuminance tracking control scheme. The illuminance signal data of the classroom is compared with the illuminance control data, and a tracking control command is generated and output to the controller to control the increase or decrease of the number of lights in use and / or the increase or decrease of power consumption.

7. The classroom electrical control system as described in claim 5, wherein, When the processor's control program is running in automatic mode, it is switched to manual mode by the operation of the setting / selector.

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