KR100900185B1 - System for controlling the position of solar collector panels using wireless communication - Google Patents

Abstract

The present invention uses a wireless communication that can maximize the production of power can be more efficiently collected at the same time by effectively controlling the solar heat collecting plate in the system for producing power by converting solar energy into electrical energy by collecting solar heat It relates to a solar heat collecting plate position control system.

The solar heat collecting plate position control system using wireless communication according to the present invention is largely composed of a main control system and a sub control system. When the command is transmitted wirelessly from the main control system, the command is received from the sub control system and the command is received. By analyzing and driving the motor or driving the angle sensor and shadow sensor attached to the sub-control system, it is configured to collect information necessary for position control of the heat collecting plate. In particular, when the heat collecting plate is installed, the front heat collecting plate covers the rear heat collecting plate to form a shadow, which causes the heat collecting effect of the rear heat collecting plate to be halved. It is a feature of this control system that the collector plate has minimal impact on the preceding collector plate.

Solar, Collector Control, Position Control, Angle Control, Wireless Communication

Description

System for controlling the position of solar collector panels using wireless communication}

The present invention is based on a control system using wireless communication, and if the items are divided in detail, it can be divided into wireless communication technology and embedded control technology.

Wireless communication technology is in the same context as the rapidly developing mobile phone technology, and also follows the communication protocol of IEEE801.11a, a wireless communication field.

In the case of the embedded system, the system can be designed and controlled according to the end-user, and the technology is based on the electronic field.

It is one of the methods to build a system that can control various sensors based on USN (Ubiquitous Sensor Network) by combining these two technologies.

According to the present invention, existing systems are controlled through wires, and as a result, control problems and installation-related problems occur, and as the wireless devices develop due to the development of electronic technology, an environment in which these systems can be incorporated is created. .

In addition, with the development of various sensor devices, technologies that have been controlled in the existing analog environment have been transferred to the digital control world, requiring more precise and precise control technology.

The present invention can be said to have a background in constructing an appropriate solution based on USN through such a timely demand and commercial combination.

Conventional solar control systems have collected the sunlight by moving the heat collecting plate along the sunlight. Due to this problem, the heat collecting plate installed at the front side affects the heat collecting plate installed at the rear side, so that the heat collecting plate at the rear has a poor heat collecting effect. In addition, several strands of control lines were installed at the time of installation, causing problems in operation and safety. In addition, even when there is a natural disaster to collect sunlight, such as when the sun covers the clouds or rains, it is necessary to collect the light, but the heat collecting plate moves regardless of the sun.

Therefore, the present invention was created to improve the above problems, and can effectively control the front and rear heat collecting plates, and convert the existing wired method to the control method of wireless communication, thereby controlling the signal lines for installing the system. The purpose of the present invention is to provide a solar heat collecting panel position control system using wireless communication, which can solve processing problems and safety problems, and can accurately determine the position of the sun and have a great effect on collecting sunlight even in rainy days.

Solar heat collecting plate position control system using wireless communication according to the present invention to achieve the above object,
A solar heat collecting panel position control system using wireless communication,
It includes a main control system and a sub control system for wireless RF communication with each other,
The main control system detects wind speed and wind pressure to obtain a wind speed and wind pressure sensor for moving the position of the solar heat collecting plate when heavy rain or strong wind occurs, and acquires the current ground coordinates when the solar heat collecting plate is installed. GPS receiver that can be used as the initial data for tracking sunlight, RTC for locating the sun according to time zone, and video compression expander and decoder for receiving and playing video signals transmitted from the sub-control system. Including,
The sub-control system tracks sunlight and controls a solar heat collecting plate to maximize solar collection, a solar sensor and a shadow sensor, a CCD camera for visually capturing images of the solar heat collecting plate, and An image compression expander and an encoder for compressing and digitizing an image photographed by a CCD camera are included, and the conditions and surrounding conditions of the solar heat collecting plate can be observed using them.
In addition, the present invention transmits and receives a control signal between the main control system and the sub-control system by using wireless RF communication, and maximizes the heat collection effect by controlling the front heat collecting plate and the rear heat collecting plate using the shadow sensor using an angle sensor It is characterized by detecting the solar radiation angle accurately and controlling the heat collecting plate to collect the sunlight effectively.

As described above, when the solar heat collecting plate position control system using wireless communication according to the present invention is used, the following effects can be obtained.

First, it is possible to improve the efficient collection of renewable energy by tracking the sun and collecting sunlight using the solar sensor and the angle sensor, which can have a great effect on power production.

Second, it is possible to maximize the collection of sunlight by identifying the exact position of the sun by time zone, controlling the solar heat collecting plate and tracking the sunlight.

Third, it is possible to increase the efficiency of power production compared to the installation area by solving the shadow problem that may appear when installing the solar heat collecting plate.

Fourth, by implementing the communication between each of the sub-control system and the main control system using a wireless RF modem can easily solve the installation and maintenance problems.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 is a view showing an overall overview of a solar heat collecting plate position control system using wireless communication according to an embodiment of the present invention, Figures 2 and 3 are the main control of the solar heat collecting plate position control system using a wireless communication of the present invention Figures showing the configuration of the system and the sub control system, respectively.
1 to 3, a solar heat collecting plate position control system using wireless communication according to the present invention is largely divided into a main control system 200 and a sub control system 100, and firstly, a main control system 200. In order to know the current latitude and longitude of the ground on which the solar heat collecting plate is installed, the current latitude and longitude are determined using a GPS (Global Positioning System) receiver 203. The GPS receiver 203 revolves around the earth and receives military meteorological information and location information from satellites to determine relative positions.

As a result, the coordinates of the position of the currently installed solar heat collecting plate can be grasped and obtained as the coordinates.

On the basis of the obtained coordinates, the main CPU 201 may obtain the distance between the sun and the relative position of the heat collecting plate. The distance data is data related to the amount of sunshine, and the distance of the sun can be estimated according to the distance.
The distance data is a reference point of the initial data of the sub-control system 100 and the moving direction of the heat collecting plate. To this end, the main control system 200 transmits this distance data to each sub control system 100 through the wireless RF modem 207 embedded in the main control system 200.

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The current year, month, date, hour, and minute are modified and stored through the RTC (Real-Time Clock) 208, the display, and the button 204 that are built in the main control system 200. RTC (208) is a device that records the current date and time, and compares the statistics of the movement of sunlight with time, and is a means of moving the position of the heat collecting plate and also the RTC (embedded in the sub-control system 100 ( 109) is the date data as a reference.

This is also transmitted to the sub-control system 100 using a wireless RF modem 207 embedded in the main control system 200. Here, the main control system 200 and the sub control system 100 transmit the above-mentioned two data at sunrise every day and execute the initialization operation automatically.

Since several sub-control systems 100 communicate with one main control system 200, the sub-control system 100 is used to determine whether there is a malfunction or abnormality in the sub-control system 100 among the sub-control systems 100. By periodically transmitting their unique ID to the (100) to determine whether there is an abnormality of the sub-control system (100).

The main control system 200 has a built-in wind pressure and wind speed sensor 202 to generate a gust of wind due to the rainy season, heavy rain and extreme weather, which may affect the solar heat collecting plate. The command plate is sent to the subsystem via the wireless RF modem 207 to minimize the wind effect.

When the main control system 200 receives a high quality digital image transmitted from the sub control system 100 through the wireless RF modem 207, the main control system 200 decompresses it through an image compression expander (image compression codec) 206 and The display is again displayed on the display screen 204 via the decoder 205. This makes it possible to monitor the system's status even at remote locations.

The information obtained above is transmitted to the PC through the PC interface 210 to record and store the information, and the information is transmitted to the world through the Internet network again. In FIG. 2, reference numeral 209 denotes a system memory that stores various information and data related to the main control system 200.

Secondly, the sub-control system 100 directly controls the position of the heat collecting plate, controls the trajectory movement according to sunlight, monitors whether the front heat collecting plate affects the heat collecting plate at the rear, and plays a role related to the position control. .

As the configuration, the angle sensor 102, the shadow sensor 103, the solar sensor 105, the RTC 109 and the motor control circuit 104 is mounted to collect various kinds of information to the main control system 200 Will be sent to.

The sub-control system 200 receives information related to the current latitude and longitude from the main control system 200 through the wireless RF modem 110, stores the current position, and receives the relative converted distance, respectively. The relative distance that matches the position of will be converted and saved.

Here, the latitude and longitude of each sub control system 100 are obtained based on the information received from the main control system 200 with reference to the relative distance at the time of installation to obtain the coordinates.

 Based on the obtained information, the sun is tracked by identifying the relative position of the sun at sunrise, where the sun's trajectory is first focused on the maximum light emission value of the current sunlight through the solar sensor 105. The second position is detected and secondly, the position of the sun is calculated by converting the position of the sun by the statistical time zone through the RTC 109. Here, the photovoltaic sensor 105 that tracks sunlight is composed of a photo TR, and in this porter TR, the position of the solar light is found by maximizing the value when it is in line with the sunlight and statistical data of the sunlight. The Meteorological Agency refers to the information stored in the system memory 111 in advance using statistical data throughout the year.

In addition, according to the movement of the sun in each time zone using the angle sensor 102 to compare the current angle and move the solar collector plate.

The angle sensor 102 is composed of two magnetic elements, and when the element is inclined, a constant value comes out. By using this, an angle inclination value can be obtained.

In addition, the movement drives the motor mounted on the heat collecting plate based on the signal output from the motor control circuit 104.

Here, if the front heat collecting plate affects the rear heat collecting plate by the shadow, the shadow sensor 103 is detected and the rear heat collecting plate moves further by the range when the rear heat collecting plate moves to avoid the influence of the shadow.

In detail, if the sun's position is 10 degrees above the horizon, the front panel moves in the direction of 30 degrees, but the rear panel is affected by the front panel, forming shadows. As you move upwards. However, when the length of the shadow changes to a minimum at 12 noon, the next movement will be deducted by the error, and will not be affected by the shadow of the front heat collecting plate.

In addition, the movement trace of the heat collecting plate is referred to as the solar sensor 105 moves first and moves, and in the case of the RTC 109, it serves as an auxiliary role.

However, when the lowest value is extracted from the photovoltaic sensor 105, this is a case where the weather is bad or it is raining or clouds block the sun. In this case, the sun is moved by time zone using the RTC 109. The move will regularly move to the specified value per hour.

In this case, when the front heat collecting plate affects the rear heat collecting plate by the shadow sensor 103, the rear heat collecting plate is moved a little further until the rear light sensor 103 is not detected as described above. To avoid shadows.

Here, the shadow sensor 103 is composed of CDS (Cadmium Sulphide), the value of which is changed according to light, and when the shadow is reflected, the value is reduced so that the shadow is reflected.

When visually confirming the operation of the system, images of the CCD camera 106 mounted on the sub-control system 100 are photographed, and the images are digitized again by using the encoder 107, which are then digitized again. Compression code) 108 is used to compress the image and transmit the compressed information to the main control system 200 via the wireless RF modem 110. And when the weather is cloudy or at night, the light 115 may be used to brighten the vicinity of the CCD camera 106 to acquire an image. This allows the management status of the system to be viewed remotely without having to go directly to the place where the heat sink is installed.

Since the sub control system 100 is driven using the battery 113, the main CPU 101 continuously checks the life of the battery using the battery checker 112, and the checked information is transferred to the main control system 200. The wireless RF modem 110 transmits and when the sub-control system 100 requiring the replacement of the battery is found, it is displayed on the display 204 window of the main control system 200 so that the user can change the battery. The battery 113 of the necessary sub control system 100 is replaced.

If the information related to the RTC 109 is set using the Display & selection button 116 at the time of initial installation of the sub control system 100, the RTC 208 transmitted from the main control system 200 is set after the setting. The date and time are automatically corrected by comparison.

The information obtained by calculation by the sub control system 100 itself is transmitted to the main control system 200 through the wireless RF modem 110 and is also stored in the backup storage device 114 mounted in the sub control system 100. When the battery is exhausted and the system is turned off and the battery is replaced, the information is read from the backup storage device 114 when the system is turned on to maintain the initially set information.

In particular, although not illustrated in the drawings, since a plurality of sub-control systems 100 are mounted on the heat collecting plate, a unique ID of each of the sub-control systems 100 may be assigned and stored to distinguish each sub-control system 100 during communication. It is supposed to be.

It can be applied to solar control panel position control using wireless communication and industrial control system that can be controlled using long-range wireless RF communication.

1 is a view showing an overall overview of a solar heat collecting plate position control system using a wireless communication of the present invention.

2 is a configuration diagram of a main control system of a solar heat collecting plate position control system using wireless communication of the present invention.

3 is a configuration diagram of a sub-control system of the solar heat collecting plate position control system using wireless communication of the present invention.

Figure 4 is a flow chart showing the operation of the main control system in the present invention.

5 is a flowchart illustrating an operation process of a sub-control system for performing a series of control by interpreting a command received from the main control system in the present invention.

Claims (4)

A solar heat collecting panel position control system using wireless communication, It includes a main control system and a sub control system for wireless RF communication with each other, The main control system detects wind speed and wind pressure to obtain a wind speed and wind pressure sensor for moving the position of the solar heat collecting plate when heavy rain or strong wind occurs, and acquires the current ground coordinates when the solar heat collecting plate is installed. GPS receiver that can be used as the initial data for tracking sunlight, RTC for locating the sun according to time zone, and video compression expander and decoder for receiving and playing video signals transmitted from the sub-control system. Including, The sub-control system tracks sunlight and controls a solar heat collecting plate to maximize solar collection, a solar sensor and a shadow sensor, a CCD camera for visually capturing images of the solar heat collecting plate, and It includes an image compression expander and encoder for compressing and digitizing the image taken by the CCD camera, and by using them, it is possible to observe the state and surrounding conditions of the solar heat collecting plate, the solar light using wireless communication Collector position control system. The method of claim 1, Based on the current position information received from the GPS receiver as an initial value for position control of the solar heat collecting plate, a position trajectory of sunlight is converted using an angle sensor and the RTC, and the solar heat collecting plate is based on the converted information. Photovoltaic heat sink position control system using a wireless communication, characterized in that for moving. The method of claim 1, When the solar collector is moved, the shadow is drawn on the solar collector panel at the back after the movement of the solar collector panel, and the gathering effect is halved due to the shadow. To prevent this, the shadow sensor is used to detect the shadow and escape the shadow. Photovoltaic heat sink position control system using a wireless communication, characterized in that for moving the solar heat sink in the rear. The method of claim 1, The CCD camera is mounted in the sub-control system so that the solar heat collecting plate can be viewed and controlled by the naked eye, the image acquired by the CCD camera is digitized and compressed again through the image compression expander, and the information is Photovoltaic heat collecting plate position control system using wireless communication, characterized in that for transmitting to the main control system using wireless RF communication.

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