IoT Based Smart Hybrid Dehumidifier System and Control Method

Abstract

Disclosed are an Internet of Things (IoT)-based smart hybrid dehumidification system capable of reducing energy consumption, that is, the usage of a heater by using the condensation heat of a pre-cooler as a heat source for heating a rotor for releasing moisture in a dehumidification device to the outside, and a control method therefor. The IoT-based smart hybrid dehumidification system includes a sensing unit provided in a dehumidification space, a direct heating unit configured to suction humid air and supply dehumidified dry air to the dehumidification space, a direct digital controller (DDC) configured to control the direct heating unit, and a user terminal configured to remotely control the DDC in real time according to a sensing signal sensed by the sensing unit, and thus it is possible to maximize user convenience.

What is claimed is: 
     
         1 . An Internet of Things (IoT)-based smart hybrid dehumidification system comprising:
 a sensing unit provided in a dehumidification space;   a direct heating unit configured to suction humid air and supply dehumidified dry air to the dehumidification space;   a direct digital controller (DDC) configured to control the direct heating unit; and   a user terminal configured to remotely control the DDC in real time according to a sensing signal sensed by the sensing unit,   wherein
 the direct heating unit comprises a pre-cooler configured to cool and supply outdoor air, a dehumidification rotor configured to adsorb moisture in a dry adsorption manner from the outdoor air cooled by the pre-cooler, and a heat source unit configured to evaporate the moisture of the dehumidification rotor, 
 the heat source unit comprises a first regenerative heat source unit and a second regenerative heat source unit, and 
 the first regenerative heat source unit uses the condensation heat of the pre-cooler, the second regenerative heat source unit uses a heater, and the heater is activated by sunlight power. 
   
     
     
         2 . The IoT-based smart hybrid dehumidification system of  claim 1 , further comprising:
 a first heat source supply unit configured to supply a heat source to the first regenerative heat source unit by including a compressor and a condenser; and   a second heat source supply unit configured to supply a heat source to the first regenerative heat source unit using solar heat or configured to supply heat sources to the first regenerative heat source unit and the second regenerative heat source unit using solar heat and sunlight, respectively.   
     
     
         3 . The IoT-based smart hybrid dehumidification system of  claim 2 , wherein the first regenerative heat source unit comprises a first pipe through which a solar-heat storage material flows and a second pipe through which a high-temperature refrigerant flows, and the second pipe is buried in the first pipe. 
     
     
         4 . The IoT-based smart hybrid dehumidification system of  claim 3 , wherein the direct heating unit further comprises:
 a bypass line configured to circulate a high-temperature refrigerant discharged from the compressor to the condenser without passing through the first regenerative heat source unit; and   a three-way valve configured to control the bypass line.   
     
     
         5 . The IoT-based smart hybrid dehumidification system of  claim 3 , wherein the sensing unit comprises a humidity sensor and a temperature sensor provided in the dehumidification space, which includes an intake port and an exhaust port, and a camera configured to sense a state in the dehumidification space. 
     
     
         6 . The IoT-based smart hybrid dehumidification system of  claim 5 , wherein
 the direct heating unit further comprises an intake fan configured to supply cooled dry air from which moisture is removed by the dehumidification rotor to the intake port and an exhaust fan configured to release, through the exhaust port, air in the dehumidification space or air heated by the dehumidification rotor to the outside in order to suction humid air and supply dehumidified dry air to the dehumidification space, and   the DDC controls the operation of the pre-cooler, dehumidification rotor, heat source unit, intake fan, and exhaust fan of the direct heating unit according to an instruction value from the user terminal.   
     
     
         7 . An Internet of Things (IoT)-based smart hybrid dehumidification control method comprising:
 (a) presetting the temperature in a first regenerative heat source unit by a user terminal;   (b) activating an intake fan provided in a direct heating unit to supply air to an intake port of a dehumidification space, and at the same time, cooling outdoor air by a pre-cooler and removing the moisture contained in the outdoor air by a dehumidification rotor;   (c) sensing the temperature in the first regenerative heat source unit by a temperature sensing member provided in the first regenerative heat source unit after the dehumidification is performed in operation (b);   (d) circulating a high-temperature refrigerant discharged from a compressor to a condenser through a bypass line in order not to pass through the first regenerative heat source unit when the temperature sensed in operation (c) is higher than the temperature set in operation (a); and   (e) activating a heater of a second regenerative heat source unit by a battery supplying power when the temperature sensed in operation (c) is lower than the temperature set in operation (a).   
     
     
         8 . The IoT-based smart hybrid dehumidification control method of  claim 7 , wherein the supply of a heat source from a first heat source supply unit to the first regenerative heat source unit and the supply of a heat source from a second heat source supply unit to the first regenerative heat source unit and the second regenerative heat source unit are executed according to the temperature preset by the user terminal.