A monitoring and control system and method for a plant factory based on TV white spaces (TVWSs) are disclosed. The monitoring and control system for the plant factory includes a sensor assembly installed inside and outside a plant factory and measuring an environmental state, an actuator assembly in
A monitoring and control system and method for a plant factory based on TV white spaces (TVWSs) are disclosed. The monitoring and control system for the plant factory includes a sensor assembly installed inside and outside a plant factory and measuring an environmental state, an actuator assembly installed inside the plant factory and creating a growing environment, and a central data processing assembly assigning a TV white space (TVWS) channel to the sensor assembly and the actuator assembly, receiving the environmental state from the sensor assembly through the TVWS channel, generating a control signal controlling the actuator assembly to meet a predetermined conditions for an internal environment of the plant factory for an optimal state of growth of crops in response to the environmental state, and transmitting the control signal to the actuator assembly through the TVWS channel.
대표청구항▼
1. A plant factory monitoring and control system comprising: a sensor assembly installed inside and outside a plant factory and measuring an environmental state;an actuator assembly installed inside the plant factory and creating a growing environment; anda central data processing assembly assigning
1. A plant factory monitoring and control system comprising: a sensor assembly installed inside and outside a plant factory and measuring an environmental state;an actuator assembly installed inside the plant factory and creating a growing environment; anda central data processing assembly assigning a TV white space (TVWS) channel to the sensor assembly and the actuator assembly, receiving the environmental state from the sensor assembly through the TVWS channel, generating a control signal controlling the actuator assembly to meet a predetermined conditions for an internal environment of the plant factory for an optimal state of growth of crops in response to the environmental state, and transmitting the control signal to the actuator assembly through the TVWS channel. 2. The plant factory monitoring and control system of claim 1, wherein the sensor assembly comprises a sensor installed inside and outside the plant factory and measuring at least one of temperature, humidity, CO2, electrical conductivity (EC), illuminance, light intensity, culture medium temperature, culture medium moisture, solar radiation, wind velocity, a wind direction, and rainfall, wherein the sensor comprises a TVWS communication terminal performing TVWS communication. 3. The plant factory monitoring and control system of claim 1, wherein the actuator assembly comprises an actuator comprising at least one of artificial lighting, a humidifier, a dehumidifier, a water supply, a ceiling motor, a side window motor, a curtain motor, a screen motor, a flow fan, a ventilation fan, a CO2 supply, a convection fan, an air conditioner, and a heater, which is installed inside the plant factory, wherein the actuator comprises a TVWS communication terminal performing a TVWS communication. 4. The plant factory monitoring and control system of claim 1, wherein an assignment of the TVWS channel to the sensor assembly and the actuator comprises: connecting to a TVWS management server,requesting a TVWS channel list based on locations of the central data processing assembly, the sensor assembly, and the actuator from the TVWS management server,receiving the TVWS channel list from the TVWS management server, selecting at least one TVWS channel from the TVWS channel list, and assigning the at least one TVWS channel to the central data processing assembly, the sensor assembly, and the actuator. 5. The plant factory monitoring and control system of claim 4, wherein the selecting of the at least one TVWS channel and the assigning of the at least one TVWS channel comprise: selecting a TVWS channel from the at least one TVWS channel included in the TVWS channel list according to at least one of coverage, transmission power, and a degree of interference in the vicinity, andassigning the TVWS channel to the central data processing assembly, the sensor assembly, and the actuator. 6. The plant factory monitoring and control system of claim 5, wherein the selecting of the TVWS channel comprises: selecting a first TVWS channel from the TVWS channel list, the first TVWS channel assigned the inside and outside of the plant factory and covering the central data processing assembly, the sensor assembly, and the actuator which are installed inside and outside the plant factory. 7. The plant factory monitoring and control system of claim 6, wherein the selecting of the TVWS channel further comprises: grouping the central data processing assembly, the sensor assembly, and the actuator installed in a region adjacent to the inside and outside of the plant factory, andselecting a plurality of TVWS channels covering the central data processing assembly, the sensor assembly, and the actuator from a corresponding group, and assigning the plurality of TVWS channels to each of the corresponding group. 8. The plant factory monitoring and control system of claim 7, wherein the selecting of the TVWS channel further comprises: selecting at least one TVWS channel from the TVWS channel list, dividing the at least one TVWS channel into a plurality of sub-channels, and assigning the plurality of sub-channels to the sensor assembly and the actuator. 9. The plant factory monitoring and control system of claim 8, wherein the central data processing assembly transmits and receives information to and from the sensor assembly and the actuator through the TVWS channel by applying a time division multiplexing (TDM) communication method or a code division multiplexing (CDM) communication method. 10. A plant factory monitoring and control method comprising: receiving information corresponding to an environmental state of an inside and outside of a plant factory from a plurality of sensors when the plurality of sensors installed inside and outside the plant factory sense and transmit the environmental state;generating a control signal creating a growing environment of the inside of the plant factory to meet a predetermined conditions for an internal environment of the plant factory for an optimal state for growth of crops in response to the environmental state and transmitting the control signal to a plurality of actuators installed inside the plant factory; andtransmitting and receiving the information to and from the plurality of sensors and the plurality of actuators through TVWS-based wireless communication. 11. The plant factory monitoring and control method of claim 10, wherein the step of the transmitting and receiving of the information comprises: connecting to a TVWS management server;requesting a TVWS channel list based on locations of a central data processing assembly, the sensor assembly, and the plurality of actuators from the TVWS management server;receiving the TVWS channel list from the TVWS management server; andselecting at least one TVWS channel from the TVWS channel list;assigning the at least one TVWS channel to the central data processing assembly, the sensor assembly, and the actuator; andtransmitting and receiving the information to and from the central data processing assembly, the sensor assembly, and the actuator through TVWS-based wireless communication. 12. The plant factory monitoring and control method of claim 11, wherein the steps of selecting, the assigning, and the transmitting and receiving further comprises: selecting a first TVWS channel assigned the inside and outside of the plant factory, covering the central data processing assembly, the sensor assembly, and the actuator which are installed inside and outside the plant factory, and transmitting and receiving the information to and from the inside and outside of the plant factory through TVWS -based wireless communication. 13. The plant factory monitoring and control method of claim 12, wherein the steps of the selecting, the assigning, and the transmitting and receiving further comprises: grouping the central data processing assembly, the sensor assembly, and the actuator which are installed in a region adjacent to the inside and outside of the plant factory,selecting a plurality of TVWS channels covering the central data processing assembly, the sensor assembly, and the actuator from a corresponding group,performing a link connection of the central data processing assembly, the plurality of sensor assemblies, and the plurality of actuators by applying a multi-hop method,assigning the plurality of TVWS channels to each of the corresponding group, andtransmitting and receiving the information through TVWS-based wireless communication. 14. The plant factory monitoring and control method of claim 12, wherein the steps of the selecting, the assigning, and the transmitting and receiving further comprises: selecting at least one TVWS channel from the TVWS channel list,dividing the at least one TVWS channel into a plurality of sub-channels, assigning the plurality of sub-channels to the central data processing assembly, the sensor assembly, and the actuator, andtransmitting and receiving information to and from the central data processing assembly, the sensor assembly, and the actuator through TVWS-based wireless communication. 15. The plant factory monitoring and control method of claim 14, wherein the steps of the selecting, the assigning, and the transmitting and receiving comprises: transmitting and receiving the information to and from the central data processing assembly, the sensor assembly, and the actuator through the TVWS channel by applying a TDM communication method or a CDM communication method.
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