KR101689243B1 - Monitoring control system and method for the plant factory based on tv white space - Google Patents

Monitoring control system and method for the plant factory based on tv white space Download PDF

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KR101689243B1
KR101689243B1 KR1020150044803A KR20150044803A KR101689243B1 KR 101689243 B1 KR101689243 B1 KR 101689243B1 KR 1020150044803 A KR1020150044803 A KR 1020150044803A KR 20150044803 A KR20150044803 A KR 20150044803A KR 101689243 B1 KR101689243 B1 KR 101689243B1
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tvws
plant
actuator
data processing
processing unit
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KR20160071302A (en
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이원철
장형민
최주평
윤덕원
박규민
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숭실대학교산학협력단
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Abstract

A TVWS-based plant factory monitoring and control system and method are disclosed.
A TVWS (TV White Space) channel is allocated to the sensor unit and the actuator, and the TVWS (TV White Space) channel is allocated to the sensor unit and the actuator. A controller for receiving the environmental condition from the sensor unit through the channel and generating a control signal for controlling the actuator so that the cultivation environment inside the plant plant can reach the optimal environment for growing the crop in response to the environmental condition, And a central data processing unit for transmitting to the actuator through the TVWS channel.

Description

TECHNICAL FIELD [0001] The present invention relates to a TVWS-based plant factory monitoring control system and method,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a TVWS (TV White Space) based plant plant monitoring and control system and method, and more particularly, Plant plant monitoring control system and method.

In recent years, plants that can control the environmental conditions such as temperature, light, CO 2 , and culture liquids that optimize the growth of crops in the facility and automate work processes to continuously grow crops regardless of weather conditions Plant-based crop cultivation methods are being activated.

Since it is important to appropriately maintain environmental conditions such as temperature, humidity, CO 2 , and light and cope with the change of environmental conditions promptly in the plant cultivation method using plant factories, A variety of plant plant monitoring and control systems are used to control. At this time, the monitoring control system used in plant factories mainly uses WLAN, Zigbee and cellular communication method based on 2.4 GHz ISM band.

On the other hand, WLAN and Zigbee communication methods among the communication methods applied to the conventional plant factory monitoring and control system have an advantage that they can be used free of charge. However, since they are relatively high frequency bands, And the cellular communication method is disadvantageous in that it is continuously incurred in the process of wireless communication with various operating devices.

Therefore, it is necessary to develop a plant plant monitoring and control system that can communicate over a wide range using a lower frequency band than the wireless communication method based on the ISM band, and apply a wireless communication method at a reasonable cost.

Korean Patent No. 10-1321337

One aspect of the present invention is a plant plant monitoring and control system, which provides a system for controlling an environmental condition inside a plant plant by monitoring environmental conditions inside or outside the plant.

Another aspect of the present invention relates to a TVWS-based wireless communication method, and provides a method for transmitting and receiving information using operating equipment installed inside or outside a plant factory and using TVWS-based wireless communication.

Also, a method for transmitting and receiving information by allocating TVWS channels divided into a plurality of subchannels to operating equipment installed inside or outside a plant plant is provided.

According to an aspect of the present invention, there is provided a TVWS (TV White Space) -based plant factory monitoring and control system, comprising: a sensor unit installed inside or outside a plant factory for measuring an environmental condition; An actuator installed inside the plant plant to create a cultivation environment; And a television white space (TVWS) channel is allocated to the sensor unit and the actuator, an environmental condition is received from the sensor unit through the TVWS channel, and the cultivation environment inside the plant plant corresponds to the environmental condition, And a central data processing unit for generating a control signal for controlling the actuator so as to reach an optimal environment and transmitting the generated control signal to the actuator through the TVWS channel.

The sensor unit may include a sensor installed inside or outside the plant to measure at least one of temperature, humidity, CO 2 , EC, illuminance, light amount, medium temperature, medium moisture, solar radiation, wind speed, And the sensor may include a TVWS communication module that enables TVWS communication.

In addition, the actuators, the plant factory installed inside artificial lighting, humidifiers, dehumidifiers, drinkers, ceiling motor Side Window motors, curtain motors, screen motors, flow fans, ventilation fans, CO 2 supply, convection fans, air conditioners, heaters , And the actuator may include a TVWS communication module that enables TVWS communication.

In addition, the assigning of the TVWS channel to the sensor unit and the actuator may include accessing a TVWS management server, requesting and receiving a TVWS channel list based on the positions of the central data processing unit, the sensor unit, and the actuator, And selecting at least one TVWS channel from the TVWS channel list and allocating it to the central data processing unit, the sensor unit, and the actuator.

In addition, selecting at least one TVWS channel from the TVWS channel list and assigning it to the central data processing unit, the sensor unit, and the actuator may include selecting one of at least one TVWS channel included in the TVWS channel list, And selecting the TVWS channel according to at least one of the degree of interference and allocating the TVWS channel to the central data processing unit, the sensor unit, and the actuator.

In addition, when a TVWS channel is selected from at least one TVWS channel included in the TVWS channel list and allocated to the central data processing unit, the sensor unit, and the actuator according to the coverage, The sensor unit, and the actuator, all of which can be covered by the central data processing unit, the sensor unit, and the actuator.

In addition, when a TVWS channel is selected from at least one TVWS channel included in the TVWS channel list and allocated to the central data processing unit, the sensor unit, and the actuator according to the coverage, A plurality of TVWS channels grouped by the central data processing unit, the sensor unit, or the actuator and capable of being covered by the central data processing unit, the sensor unit, or the actuator included in the group, .

When a TVWS channel is selected from at least one TVWS channel included in the TVWS channel list and allocated to the sensor unit and the actuator according to the coverage, at least one TVWS channel among the TVWS channel list is selected, And allocating the channel to the sensor unit and the actuator.

In addition, the central data processing unit may transmit and receive information with the sensor unit and the actuator through the TVWS channel by applying a time division communication method or a code division communication method.

A control method of a plant plant monitoring system including a central data processing unit for controlling a sensor unit and an actuator installed inside or outside a plant factory, and a TVWS management server for communicating with the central data processing unit and allocating a TVWS channel, Wherein the central data processing unit receives an environmental condition inside or outside the plant plant from the sensor unit and controls the inside of the plant plant so that the environment inside the plant plant can reach the optimal environment for growing the crop, And generates and transmits a control signal of the actuator that controls the environmental condition, and the central data processing unit performs wireless communication based on TVWS (TV White Space) with the sensor unit and the actuator.

In the meantime, the central data processing unit performs wireless communication based on TVWS (TV White Space) with the sensor unit and the actuator, the central data processing unit is connected to the TVWS management server, and the central data processing unit, Requesting and receiving a TVWS channel list based on the position of the actuator, selecting at least one TVWS channel from the TVWS channel list, allocating the TVWS channel to the central data processing unit, the sensor unit, and the actuator, and performing TVWS- .

In addition, the central data processing unit may select at least one TVWS channel from the TVWS channel list, allocate to the central data processing unit, the sensor unit, and the actuator, and perform TVWS-based wireless communication, One TVWS channel that can cover the central data processing unit, the sensor unit, and the entire actuator installed inside or outside the plant may be selected and allocated to the inside or outside of the plant factory to perform TVWS-based wireless communication have.

In addition, the central data processing unit may select at least one TVWS channel from the TVWS channel list and allocate the TVWS channel to the central data processing unit, the sensor unit, and the actuator, and perform TVWS-based wireless communication, The sensor unit or the actuator, and selects a plurality of TVWS channels capable of being covered by the central data processing unit, the sensor unit, or the actuator included in the corresponding group, And performing TVWS-based wireless communication by linking the central data processing unit, the sensor unit, or the actuator by applying a TVWS channel and applying a multi-hop method.

In addition, the central data processing unit may select at least one TVWS channel from the TVWS channel list, allocate the TVWS channel to the central data processing unit, the sensor unit, and the actuator, and perform TVWS-based wireless communication, Selecting one TVWS channel, dividing the subchannels into a plurality of subchannels, and assigning the subchannels to the central data processing unit, the sensor unit, and the actuator, thereby performing TVWS-based wireless communication.

In addition, the central data processing unit may select at least one TVWS channel from the TVWS channel list, allocate the TVWS channel to the central data processing unit, the sensor unit and the actuator, and perform TVWS-based wireless communication, And may perform TVWS-based wireless communication with the central data processing unit, the sensor unit, and the actuator through the TVWS channel by applying a split communication method.

According to one aspect of the present invention, by providing a plant plant monitoring and control system, the environmental condition inside or outside the plant plant can be monitored, so that the environmental condition inside the plant plant can always maintain optimal conditions for crop growth, The time and power consumed to optimize the environment can be reduced.

In addition, by providing a plant factory monitoring and control system that uses TVWS-based wireless communication that provides a wider coverage than ISM band based wireless communication, wireless communication is possible even with a small number of wireless equipment installed, Unlike the cellular communication method in which communication is continuously incurred during the communication, the cost of operating the plant can be reduced because no additional communication cost is incurred except the initial installation cost.

In addition, by providing a plant plant monitoring and control system that utilizes TVWS-based wireless communication that can be used even in a remote place where the communication network can not reach due to its excellent propagation characteristics, the plant plant monitoring and control system capable of growing high- Can be applied.

In addition, by providing a communication method using a TVWS channel divided into a plurality of subchannels, the frequency utilization rate can be increased and the limited channel can be efficiently used.

1 is a diagram illustrating a plant plant monitoring and control system according to an embodiment of the present invention.
2 is a data flow diagram of the plant plant monitoring and control system shown in FIG.
3 is a control block diagram of the central data processing unit shown in FIG.
FIG. 4 is a diagram showing an example of use of the plant plant monitoring and control system shown in FIG. 1. FIG.
5A and 5B are diagrams illustrating another use example of the plant plant monitoring and control system shown in FIG.
FIG. 6 is a flowchart illustrating a specific operation procedure of a plant plant monitoring and control method according to another embodiment of the present invention.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

1 is a diagram illustrating a plant plant monitoring and control system according to an embodiment of the present invention.

Referring to FIG. 1, a plant plant monitoring and control system 1 may include a central data processing unit 100, a sensor unit 200, an actuator 300, and a TVWS (TV White Space) management server 400.

The central data processing unit 100 receives an environmental condition inside or outside the plant plant from the sensor unit 200 and generates a control signal for the cultivation environment of the plant plant according to the environmental condition and transmits the control signal to the actuator 300 .

Specifically, the central data processing unit 100 can receive environmental conditions inside or outside the plant plant from the sensor unit 200 through TVWS (TV White Space) -based wireless communication. At this time, the environmental condition may include all environmental factors affecting crop growth such as temperature, humidity, CO 2 , rainfall, air volume and the like.

In addition, the central data processing unit 100 generates a control signal for creating a cultivation environment so that the environment inside the plant plant can reach the optimum environmental condition of the crop according to the received environmental condition, and transmits the control signal through the TVWS- (300). At this time, the control signal may include a signal for controlling the amount of light, cooling and heating, humidification, dehumidification, water supply, and CO 2 through the actuator 300.

In particular, the central data processing unit 100 is connected to the TVWS management server 400 to perform wireless communication based on TVWS with the sensor unit 200 and the actuator 300, and is connected to the central data processing unit 100, the sensor unit 200, And a TVWS channel list including at least one TVWS channel that can be used inside or outside the plant based on the location information of the actuator 300. The central data processing unit 100 selects at least one TVWS channel suitable for use in the plant factory or outside from the TVWS channel list received from the TVWS management server 400 and transmits the selected data to the central data processing unit 100, And an actuator 300 to perform wireless communication.

At this time, the central data processing unit 100 allocates the TVWS channel to the inside or the outside of the plant factory, or the central data processing unit 100, the sensor unit 200, and the actuator 300 installed in the plant factory or the adjacent areas And TVWS channels can be allocated for each group. In addition, the central data processing unit 100 may divide the TVWS channel into a plurality of subchannels. A specific method of allocating the TVWS channel in the central data processing unit 100 will be described later.

Herein, TVWS (TV White Space) refers to a band of a channel that is not allocated locally and is not used in a TV broadcast band, and a TVWS-based wireless communication uses a frequency band of 1 GHz or more using the 470 to 698 MHz band And it is possible to provide a wide coverage because a low frequency band is used. Therefore, if a plant factory of the same size uses TVWS-based wireless communication, the installation and configuration cost of the network can be reduced by installing a smaller number of wireless facilities than using general wireless communication. In addition, the TVWS-based wireless communication does not incur costs continuously, and can be applied to a remote area where the communication network does not reach. In addition, if the TVWS channel is divided into a plurality of subchannels, the frequency utilization rate of the limited TVWS channel can be increased.

In addition, the central data processing unit 100 can be implemented in various forms of communication, storage space, and hardware capable of performing a predetermined operation, and the sensor unit 200 and the actuator 300 and TVWS communication It can be installed inside or outside the plant plant within a possible distance or it can be implemented as a portable type.

Meanwhile, a plurality of sensor units 200 may be installed at major locations inside or outside the plant factory to measure environmental conditions. That is, the sensor unit 200 may include at least one sensor capable of measuring temperature, humidity, electrical conductivity (CO), CO 2 , illuminance, light amount, medium temperature, medium moisture, wind velocity, . The sensor unit 200 can measure the environmental conditions inside or outside the plant plant according to a predetermined period or at the request of the central data processing unit 100. Each of the plurality of sensor units 200 may include a TVWS communication module for enabling TVWS communication and may be a repeater for relaying signals of another sensor unit 200 or actuator 300 for expanding a TVWS communication area Can be performed

A plurality of actuators 300 may be installed at major positions within the plant to create a cultivation environment. That is, the actuator 300 may include artificial lighting, a humidifier, a dehumidifier, a water dispenser, a ceiling motor, an outboard motor, a curtain motor, a screen motor, a flow fan, a ventilation fan, a CO 2 supply, a convection fan, . The plurality of actuators 300 may each include a TVWS communication module that enables TVWS communication and may serve as a repeater for relaying signals of the other sensor unit 200 or the actuator 300 for expanding the TVWS communication area Can do it

The TVWS management server 400 can manage the TVWS channel so as to efficiently use the TVWS channel. The TVWS management server 400 calculates or stores the TVWS channel information and the allowable transmission power of each TVWS channel for a certain area and receives the TVWS channel request from the central data processing unit 100. When the TVWS channel request is received from the central data processing unit 100, Information can be provided.

Specifically, the TVWS management server 400 receives location information of the central data processing unit 100, the sensor unit 200, and the actuator 300 installed in the plant factory or outside from the central data processing unit 100, The TVWS channel information available at the corresponding one of the 37 channels of 698 MHz can be transmitted to the central data processing unit 100.

2 is a data flow diagram of the plant plant monitoring and control system 1 shown in Fig. In FIG. 2, TVWS-based wireless communication is indicated by a dotted line, and in the case of other general communication, a solid line is shown.

Referring to FIG. 2, the central data processing unit 100 may transmit management information of the central data processing unit 100, the sensor unit 200, and the actuator 300 to the TVWS management server 400. At this time, the central data processing unit 100 transmits the management information including the location information of the central data processing unit 100, the sensor unit 200 and the actuator 300 to the TVWS management server 400, .

In the TVWS management server 400, in response to the channel request of the central data processing unit 100, the TVWS management server 400 receives TVWSs including at least one TVWS channel available at the positions of the central data processing unit 100, the sensor unit 200, And transmit the channel list to the central data processing unit 100.

The central data processing unit 100 selects the most suitable TVWS channel to be allocated to the central data processing unit 100, the sensor unit 200 and the actuator 300 among the TVWS channel list received from the TVWS management server 400, The selected TVWS channel may be assigned to the central data processing unit 100, the sensor unit 200, and the actuator 300 to perform a link connection to enable TVWS-based wireless communication. A specific method of allocating the TVWS channel to the sensor unit 200 and the actuator 300 in the central data processing unit 100 will be described later.

On the other hand, the sensor unit 200 installed inside or outside the plant can sense environmental conditions inside or outside the plant.

The sensor unit 200 may transmit the environmental conditions inside or outside the plant factory sensed through the TVWS channel allocated from the central data processing unit 100 to the central data processing unit 100. At this time, the sensor unit 200 may sense environmental conditions inside or outside the plant plant according to a predetermined period or at the request of the central data processing unit 100, and transmit the sensed environmental conditions to the central data processing unit 100.

The central data processing unit 100 may generate control information for controlling the environment inside the plant factory by reflecting the environmental conditions received from the sensor unit 200. [ The central data processing unit 100 may generate a control signal for controlling the actuator 300 and transmit the control signal to the actuator 300 through the TVWS channel so that the environment inside the plant factory may reach the optimum state of crop growth.

The actuator 300 receives the control information from the central data processing unit 100 through the TVWS channel allocated from the central data processing unit 100 and controls the environment of the plant in accordance with the control information The actuator 300 can be controlled.

In addition, the actuator 300 can transmit operation information including the current operation state, failure, and the like to the central data processing unit 100 through the TVWS channel.

Hereinafter, the specific structure and operation principle of the plant plant monitoring and control system 1 according to an embodiment of the present invention can be described with reference to FIG. 3 to FIG.

3 is a control block diagram of the central data processing unit 100 shown in FIG.

3, the central data processing unit 100 may include a TVWS communication unit 110, a TVWS local database 120, a control unit 130, and a memory unit 140. [

The TVWS communication unit 110 may perform TVWS-based wireless communication with the sensor unit 200 and the actuator 300. [ The TVWS communication unit 110 can perform wireless communication with the sensor unit 200 and the actuator 300 through the link connection when the controller 130 allocates the TVWS channel to the sensor unit 200 and the actuator 300 . That is, the TVWS communication unit 110 receives environmental conditions inside or outside the plant plant from the sensor unit 200 according to a predetermined cycle, or requests the sensor unit 200 to sense environmental conditions inside or outside the plant plant Receive the corresponding information, transmit a control signal to the actuator 300, and receive operation information including the current operation state, failure, and the like from the actuator 300.

The TVWS communication unit 110 receives the TVWS channel list and the allowable transmission power of each TVWS channel from the TVWS management server 400 to perform wireless communication based on the TVWS with the sensor unit 200 and the actuator 300 . At this time, the TVWS communication unit 110 can access the TVWS management server 400 using various communication networks such as the Internet, a cellular network, and the central data processing unit 100, the sensor unit 200, And the position information of the actuator 300, the TVWS channel list and the transmission power amount of each TVWS channel can be requested and received.

The TVWS local database 120 may store management information including location information of the central data processing unit 100, the sensor unit 200 and the actuator 300, as described above. The position information of the central data processing unit 100, the sensor unit 200 and the actuator 300 stored in the TVWS local database 120 may be input manually by the user or may be input by the user through the sensor unit 200 and the actuator 300, A module capable of detecting the position of itself and transmitting information can be further provided and can be automatically stored.

The TVWS local database 120 includes a unique number of the TVWS communication module provided in the sensor unit 200 and the actuator 300 so that the TVWS communication unit 110 can utilize the TVWS management server 400 in requesting the TVWS channel. And management information including location information and the like can be stored in association with each other.

In addition, the TVWS local database 120 may be configured to allow the central data processing unit 100, the sensor unit 200, and / or the central processing unit 100 to respond to requests for TVWS channel information in use from the TVWS management server 400, It is also possible to store the TVWS channel information in use by being assigned to the actuator 300.

The control unit 130 may control the overall operation of the central data processing unit 100 and may include a data processing unit 131.

The control unit 130 selects a TVWS channel according to at least one of the coverage, the transmission power, and the peripheral interference level from the available TVWS channel list received from the TVWS management server 400 and transmits the selected TVWS channel to the central data processing unit 100 The sensor unit 200, and the actuator 300, as shown in FIG. That is, the control unit 130 includes a central data processing unit 100, a plurality of sensor units 200, and a plurality of sensor units 200 installed in or outside the plant factory among at least one TVWS channel included in the TVWS channel list received from the TVWS management server 400 The TVWS channel having the largest transmission power allocation can be selected or the TVWS channel having the least interference can be selected and the central data processing unit 100, the sensor unit 200, and the actuator (300).

At this time, the control unit 130 determines the coverage of all the central data processing unit 100, the sensor unit 200, and the actuator 300 installed in the plant factory or outside from the available TVWS channel list received from the TVWS management server 400 A TVWS channel is selected as a whole and allocated to the inside or the outside of the plant factory, and a central data processing unit 100 and a plurality of And can perform wireless communication with the sensor unit 200 and the actuator 300.

Alternatively, the controller 130 may group the central data processing unit 100, the sensor unit 200, and the actuator 300, which are installed in a plant factory interior or an adjacent area, to the central data processing unit 100, A TVWS channel is allocated to each group by selecting a plurality of TVWS channels capable of covering the sensor unit 200 and the actuator 300 and a central data processing unit 100 and a plurality of sensor units 200 or And performs wireless communication with a plurality of sensor units 200 or actuators 300 through one TVWS channel by applying various divided communication methods such as a time division communication method and a code division communication method, can do.

Meanwhile, the controller 130 divides the TVWS channel selected from the available TVWS channel list received from the TVWS management server 400 into a plurality of subchannels and transmits the subwoofers to the central data processing unit 100, the sensor unit 200, and the actuator 300 It is possible to allocate at least one TVWS subchannel and perform wireless communication with the central data processing unit 100, the sensor unit 200 or the actuator 300, or transmit the TVWS subchannel to the central data processing unit 100, 200, or the actuator 300 and applies various divided communication methods such as a time division communication method or a code division communication method to the central data processing unit 100, the plurality of sensor units 200 or the actuator 300. In this case, At this time, the controller 130 may adjust the number of subchannels so as to avoid traffic overflow considering the amount of information transmission through each subchannel.

The data processing unit 131 receives operation information including an environmental condition inside or outside the plant factory received from the sensor unit 200 through the TVWS communication unit 110 and a current operation state and failure or the like received from the actuator 300 A control signal for controlling the actuator 300 inside the plant factory can be generated and transmitted.

That is, the data processing unit 131 receives an environmental condition inside or outside the plant plant according to a predetermined period from the sensor unit 200, or performs environmental condition sensing inside or outside the plant plant with the sensor unit 200 So that the environmental condition inside or outside the plant plant can be optimized to reach the optimum environmental condition according to the values of light quantity, temperature, humidity and CO 2 stored in the memory unit 140 A control signal for controlling the actuator 300 may be generated and transmitted to the actuator 300 through the TVWS communication unit 110.

The memory unit 140 may store optimal values of environmental conditions such as light quantity, temperature, humidity, CO 2, etc., which affect the crop growth depending on the kind of crop in the plant. At this time, the numerical values such as light quantity, temperature, humidity and CO 2 , which are environmental conditions affecting the crop growth depending on the kind of the crops stored in the plant plant, can be updated with the data learned through plant growth at the plant factory, You can update it directly.

Meanwhile, FIG. 4 is a diagram showing an example of use of the plant plant monitoring and control system shown in FIG.

4, the first and second humidity sensors 200a and 200b and the first and second optical sensors 200c and 200d are installed in the plant plant to measure the environmental conditions inside the plant, The first and second humidifiers 300a and 300b and the first and second artificial lights 300c and 300d are installed and are controlled by a control signal received from the central data processing unit 100, .

The central data processing unit 100 receives the humidity inside or outside the plant factory according to a predetermined cycle from the first and second humidity sensors 200a and 200b or the first and second humidity sensors 200a and 200b It is possible to generate a control signal for controlling the first and second humidifiers 300a and 300b by requesting environmental condition sensing and receiving the information. In other words, the central data processing unit 100 may include first and second humidifiers 300a, 300b, and 300c so as to allow the humidity inside the plant to reach the optimal humidity of the crop based on the optimum number of plant factory humidity according to the type of crop in the plant. And 300b, and transmits the control signal to the first and second humidifiers 300a and 300b.

The central data processing unit 100 receives light quantities inside or outside the plant factory according to a predetermined period from the first and second photosensors 200c and 200d or receives light quantities of the first and second photosensors 200c and 200d The controller 200 can generate a control signal for controlling the first and second artificial lights 300c and 300d. In other words, the central data processing unit 100 can perform the first and second artificial lights (the first and second artificial lights) so that the amount of light in the plant can reach the optimal humidity of the crop, 300c, and 300d, and transmits the control signals to the first and second artificial lights 300c and 300d.

The central data processing unit 100 includes first and second humidity sensors 200a and 200b, first and second light sensors 200c and 200d, first and second humidifiers 300a and 300b, The TVWS channel can be allocated to perform wireless communication based on the TVWS with the terminals 300c and 300d. At this time, the central data processing unit 100 selects a TVWS channel capable of covering a plurality of sensor units 200 or actuators 300, a TVWS channel having the largest transmission power allocation, or a TVWS channel having the least interference, Can be selected. On the other hand, when selecting the TVWS channel that receives the least interference, the degree of interference can be determined by measuring the difference between the received power of the channel and the noise flow, which is a known method, and thus a detailed description thereof will be omitted.

For example, the central data processing unit 100 receives from the TVWS management server 400 first and second humidity sensors 200a and 200b, first and second light sensors 200c and 200d, first and second humidifiers 300a and 300b, The TVWS channel list (ch4, ch5, ch6) and the allowable transmission power of each TVWS channel at the positions where the first and second artificial lights 300b and 300b and the first and second artificial lights 300c and 300d are installed.

If the ch6 of the received TVWS channel list (ch4, ch5, ch6) can be covered by all the sensor units 200 and the actuators 300 installed in the plant factory or outside, the central data processing unit 100 may transmit ch6 to the plant You can choose the TVWS channel that is most suitable for use in the factory.

In addition, the central data processing unit 100 allocates ch6, which is a TVWS channel selected as a whole, to the inside and the outside of the plant factory and applies various divided communication methods such as time division communication method and code division communication method to the first and second humidity sensors The second and third light sources 300a and 300b and the first and second light sensors 300a and 300b and the first and second light sensors 200c and 200d and the first and second humidifiers 300a and 300b and the first and second artificial lights 300c and 300d.

Alternatively, the central data processing unit 100 may transmit the selected TVWS channel ch6 to a plurality of subchannels (ch6-1, ch6-2, ch6-3, ch6-4, ch6-5, ch6-6, ch6-7, The first and second humidity sensors 200a and 200b and the first and second photosensors 200c and 200d and the first and second humidifiers 300a and 300b and the first and second artificial lights 300c and 300d, And one subchannel is allocated to each of the subchannels to perform wireless communication. At this time, the central data processing unit 100 allocates one TVWS subchannel to the plurality of sensor units 200 or the actuators 300 without allocating one TVWS subchannel to the sensor unit 200 or the actuator 300 And can perform wireless communication with a plurality of sensor units 200 or actuators 300 through one TVWS subchannel by applying various divided communication methods such as a time division communication method and a code division communication method.

Alternatively, the central data processing unit 100 may group the sensor unit 200 or the actuators 300 installed in an adjacent area of the plant factory or outside, and may detect the coverage of the sensor unit 200 or the actuator 300 included in the group A TVWS channel is allocated to each group by selecting a plurality of TVWS channels capable of being connected to a central data processing unit 100 and a plurality of sensor units 200 or actuators 300 by applying a multi- It is possible to perform wireless communication with a plurality of sensor units 200 or actuators 300 through one TVWS channel by applying a code division communication method.

5A, the central data processing unit 100 includes a first humidity sensor 200a, a first light sensor 200c, a first humidifier 300a, and a first artificial light The first humidity sensor 200a in which ch4 is installed on the left side of the plant factory among the TVWS channel lists (ch4, ch5, ch6) available from inside or outside the plant factory received from the TVWS management server 400, The first optical sensor 200c, the first humidifier 300a, and the first artificial light 300c, it is possible to allocate ch4 to the left side of the plant and apply the time division communication method or the code division communication method, And may perform wireless communication with the first humidity sensor 200a, the first photosensor 200c, the first humidifier 300a, and the first artificial light 300c.

5B, the central data processing unit 100 includes a second humidity sensor 200b, a second photosensor 200d, a second humidifier 300b, and a second artificial light 300d A second humidity sensor 200b in which ch5 is installed on the right side of the plant factory among TVWS channel lists (ch4, ch5, ch6) available from inside and outside the plant factory received from the TVWS management server 400; If the coverage of the second light sensor 200d, the second humidifier 300b and the second artificial light 300d is possible, ch5 is allocated to the right side of the plant factory and the time division communication method or the code division communication method is applied, 2 humidity sensor 200b, the second photosensor 200d, the second humidifier 300b, and the second artificial light 300d.

Meanwhile, FIG. 6 is a flowchart illustrating a specific operation procedure of the plant plant monitoring and control system according to another embodiment of the present invention.

Referring to FIG. 6, the central data processing unit 100 may request a TVWS channel to the TVWS management server 400 (step 500). The central data processing unit 100 can access the TVWS management server 400 and request a TVWS channel intermittently or whenever a TVWS channel is needed or according to a predetermined rule by using various communication networks depending on the situation such as the Internet network and the cellular network . That is, the central data processing unit 100 is connected to the TVWS management server 400 and transmits the position information of the central data processing unit 100 and the position information of a plurality of sensor units 200 and actuators 300 installed inside or outside the plant factory To request at least one TVWS channel available within or outside the plant.

In addition, the central data processing unit 100 may receive from the TVWS management server 400 at least one TVWS channel available in or outside the plant plant and a TVWS channel list including the allowable transmission power of each TVWS channel ( 510).

In addition, the central data processing unit 100 may select a TVWS channel suitable for use in the plant factory from the TVWS channel list received from the TVWS management server 400 (520). The central data processing unit 100 selects a TVWS channel capable of covering the plurality of sensor units 200 or actuators 300 among the TVWS channel list or selects a TVWS channel having the largest transmission power allocation, TVWS channel can be selected.

In addition, the central data processing unit 100 may divide the selected TVWS channel into a plurality of subchannels (530).

The central data processing unit 100 allocates the selected TVWS channel to all of the central data processing unit 100, the sensor unit 200, and the actuator 300 installed inside or outside the plant factory when the TVWS channel is not divided to generate the subchannel (540), and performs wireless communication with the sensor unit 200 and the actuator 300 through the TVWS channel using a time division communication method or a code division communication method (550).

At this time, the central data processing unit 100 groups the sensor unit 200 or the actuators 300 installed in the vicinity of the inside or the outside of the plant factory, and the sensor unit 200 or the actuator 300 included in the group, A TVWS channel is allocated to each group by selecting a plurality of TVWS channels capable of being connected to a plurality of sensor units 200 or actuators 300 through a TVWS channel by applying a time division communication method or a code division communication method, Can be performed.

The central data processing unit 100 allocates 560 TVWS subchannels to the central data processing unit 100, the sensor unit 200, and the actuator 300, respectively, when subchannels are generated by dividing the TVWS channel And performs wireless communication with one sensor unit 200 or the actuator 300 through one TVWS subchannel or transmits a TVWS subchannel to the central data processing unit 100 and the plurality of sensor units 200 or the actuator 300 And performs wireless communication with a plurality of sensor units 200 or actuators 300 through one TVWS subchannel by applying a time division communication method or a code division communication method (570).

Such a TVWS-based plant factory monitoring control method may be implemented in an application or may be implemented in the form of program instructions that can be executed through various computer components and recorded on a computer-readable recording medium. The computer-readable recording medium may include program commands, data files, data structures, and the like, alone or in combination.

The program instructions recorded on the computer-readable recording medium may be ones that are specially designed and configured for the present invention and are known and available to those skilled in the art of computer software.

Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape, optical recording media such as CD-ROMs and DVDs, magneto-optical media such as floptical disks, media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like.

Examples of program instructions include machine language code such as those generated by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware device may be configured to operate as one or more software modules for performing the processing according to the present invention, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. It will be possible.

100: central data processor
200:
300: Actuator
400: TVWS management server

Claims (15)

A sensor unit installed inside or outside the plant to measure the environmental condition;
An actuator installed inside the plant plant to create a cultivation environment; And
A TVWS channel list including at least one TVWS channel that can be used inside or outside the plant plant by accessing a TVWS (TV White Space) management server, And assigns TVWS channels, which are available for coverage of all the sensor units and actuators included in each group of the TVWS channel list, to each group, and assigns a TVWS channel to each of the TVWS channels allocated to each group The TVWS channel allocated to each group is divided into a plurality of TVWS subchannels according to the number of subchannels adjusted for each TVWS channel allocated to each group, The sensor unit and the actuator included in the group, and the TVWS A controller for receiving the environmental condition from the sensor unit using the subchannel and generating a control signal for controlling the actuator so that the cultivation environment inside the plant plant can reach the optimal environment for growing the crop in response to the environmental condition, And a central data processing unit for transmitting to the actuator via the TVWS subchannel allocated to the actuator. The method according to claim 1,
The sensor unit includes:
A sensor installed inside or outside the plant plant and capable of measuring at least one of temperature, humidity, CO 2 , EC, illuminance, light amount, medium temperature, medium moisture, solar radiation, wind speed, And a TVWS communication module that enables TVWS communication. The method according to claim 1,
The actuator comprises:
At least one actuator installed in the plant factory and installed in the plant factory and including at least one of an artificial light, a humidifier, a dehumidifier, a water supply, a ceiling motor, an entrance motor, a curtain motor, a screen motor, a flow fan, a ventilation fan, a CO 2 feeder, a convection fan, And wherein the actuator comprises a TVWS communication module enabling TVWS communication. The method according to claim 1,
Receiving the TVWS channel list including at least one TVWS channel that can be used inside or outside the plant factory by connecting to a TVWS (TV White Space) management server,
Wherein the controller is connected to the TVWS management server and requests and receives a TVWS channel list based on the positions of the central data processing unit, the sensor unit, and the actuator. delete delete delete delete The method according to claim 1,
The central data processing unit,
And transmits and receives information to and from the sensor unit and the actuator through the TVWS subchannel assigned to the sensor unit and the actuator by applying the time division communication method or the code division communication method. A method for controlling a plant plant monitoring system including a central data processing unit for controlling a sensor unit and an actuator installed inside or outside a plant factory, and a TVWS management server for communicating with the central data processing unit and allocating a TVWS channel,
Wherein the central data processing unit receives an environmental condition inside or outside the plant plant from the sensor unit,
Generating and transmitting a control signal of the actuator for controlling an environmental condition inside the plant plant so that the environment inside the plant plant can reach the optimal environment for growing the crop in response to the environmental condition,
Wherein the central data processing unit is connected to the TVWS management server and receives a TVWS channel list including at least one TVWS channel usable in the plant factory or outside, Grouping sensor units or actuators installed in adjacent areas of the actuators, assigning TVWS channels capable of covering coverage of all sensor units and actuators included in each group of the TVWS channel list to each group, The TVWS subchannels allocated to each group are divided into a plurality of TVWS subchannels according to the number of subchannels to be tuned, To the sensor unit and the actuator included in the group, And a TVWS (TV White Space) based wireless communication with the sensor unit and the actuator using a TVWS subchannel allocated to the sensor unit and the actuator. 11. The method of claim 10,
Wherein the central data processing unit is connected to the TVWS management server and receives a TVWS channel list including at least one TVWS channel available in the plant factory or outside,
Wherein the central data processing unit is connected to the TVWS management server and requests and receives a TVWS channel list based on the positions of the central data processing unit, the sensor unit, and the actuator. delete delete delete 11. The method of claim 10,
Wherein the central data processing unit performs TVWS-based wireless communication with the sensor unit and the actuator using a TVWS subchannel allocated to the sensor unit and the actuator,
A TVWS-based wireless communication with the central data processing unit, the sensor unit, and the actuator through the TVWS subchannel allocated to the sensor unit and the actuator by applying a time division communication method or a code division communication method. Control method of factory monitoring system.
KR1020150044803A 2014-12-11 2015-03-31 Monitoring control system and method for the plant factory based on tv white space KR101689243B1 (en)

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