KR100982031B1 - System for automatic meteorological observation based ubiquitous sensor network - Google Patents

Abstract

PURPOSE: An automatic meteorological observation system based on a ubiquitous sensor network(USN) is provided to observe meteorological information in real time using a ubiquitous sensor network functional sensor and to obtain accurate meteorological information by analyzing the meteorological information which is observed from a data logger including a middleware. CONSTITUTION: An automatic meteorological observation system based on a ubiquitous sensor network comprises: an embedded device(10) for transferring sensor information, observing weather information, through a ubiquitous sensor network; a data logger(20) which receives the weather information, includes a middleware, and controls the sensor observing the weather information through the middleware; a monitoring terminal(40) which transmits and receives data through the data logger and TCP/IP communication and monitors the weather information; and a server(30) which manages the weather information.

Description

System for automatic meteorological observation based ubiquitous sensor network}

The present invention relates to an automatic meteorological observation system based on a ubiquitous sensor network (USN), and more particularly, to observe weather-related information that changes at any time in real time using a USN functional sensor, and to detect middleware. The present invention relates to an automatic weather observation system based on a ubiquitous sensor network that provides accurate weather information by analyzing weather-related information observed in a mounted data logger.

In today's society, there are rapid changes in the environment due to global warming and El Niño, where temperatures rise due to increased emissions of pollutants such as carbon dioxide and deforestation due to industrialization and industrialization. Extreme weather events, such as heavy rains or wildfires, occur frequently.

Such extreme weather not only reduces business facilities by increasing production facilities damage, production disruptions, and logistics costs, but also causes local damage in a very short period of time.

While the current weather forecasting system that monitors the above extreme weather forecasts for a wide range of regions through meteorological satellites, detailed weather information cannot be delivered to local places such as mountain valleys and riverside amusement parks. It remains defenseless. For example, when there is heavy rain or heavy snow due to extreme weather when sleeping in the mountains, such as mountain valleys, the management office receives the first weather report from the central control agency and delivers it again in a short time. I could not prepare at all for such a flood.

In addition, since the central control agencies mostly provide weather information of the current time, and the weather information is also provided for a comprehensive area, as described above, the central control agency is effective in preventing disasters in case of local weather anomalies that may occur at a specific place. It's not working.

In other words, weather-related information is a weather forecast depending on weather satellites or weather sites, and its effects are insignificant, and it is difficult to transmit real-time information to extreme weather conditions in a disaster prevention area.

In addition, in order to provide real-time meteorological disaster-related information using a wired communication network, it is necessary to actively install a meteorological observation system in a specific area. There was a problem. In addition, the equipment of the meteorological observation system was expensive, so it was difficult to install in many places in terms of cost.

Therefore, the present invention has been proposed to solve all the problems occurring in the conventional meteorological observation system as described above,

The problem to be solved by the present invention is to observe the weather-related information changes in real time using the USN functional sensor in real time, and analyzes based on the weather-related information observed in the data logger (Data loger) equipped with middleware It is to provide an automatic weather observation system based on ubiquitous sensor network that can provide accurate weather information.

Another object of the present invention is to provide an automatic meteorological observation system based on a ubiquitous sensor network that enables the software to control the observation sensor without hardware change even when the observation sensor is added and changed through the data logger middleware. There is.

Another problem to be solved by the present invention, by transmitting the observation signal of the sensor installed in the field to collect the weather-related information in real time to the data logger through the ubiquitous sensor network, the weather observation in the area where wired communication service is impossible It is to provide a network-based automatic meteorological observation system of ubiquitous sensor to facilitate this, and to reduce the cost of cable installation or cable maintenance compared to the case of using a wired communication method.

Another problem to be solved by the present invention is the automatic weather based ubiquitous sensor network, which can realize an economic weather observation system by minimizing the energy saving and maintenance costs due to low power embedded construction and simplified ICT measurement structure. To provide an observation system.

"Ubiquitous sensor network based automatic meteorological observation system" according to the present invention for solving the above problems,

An embedded device provided at a weather observation site and wirelessly transmitting information of a sensor for observing weather information through a ubiquitous sensor network;

A data logger wirelessly transmitting and receiving data with the embedded device, having a middleware and receiving and managing weather information transmitted from the embedded device in real time, and controlling a sensor for observing the weather information through the middleware. It is characterized by including.

In addition, the "Ubiquitous sensor network based automatic meteorological observation system" according to the present invention,

And a monitoring terminal for performing data transmission / reception with the data logger through TCP / IP communication and monitoring weather information managed and edited from the data logger.

In addition, the embedded device,

A plurality of weather sensors installed in the field and observing weather information;

A signal processor for processing weather information signals observed from the plurality of weather sensors;

And a USN sensor node that wirelessly converts the weather information signal processed by the signal processor to a remotely installed data logger.

The embedded device further includes a battery for supplying driving power to the USN sensor node.

The USN sensor node may be synchronized with another USN sensor node and relay weather information output from the other USN sensor node.

The USN sensor node is configured to perform synchronization with other USN sensor nodes using a multi-hop router module.

The USN sensor node is characterized in that the IP directly supports a stack (Stack) supported by TinyOS without additional gateway support.

Middleware provided in the data logger,

And a point manager defining a configuration of the plurality of weather sensors, automatically managing, and managing a common communication protocol.

These point managers include an event manager that processes events for a value set in a tag, an alarm manager that generates a message related to an alarm level set in a tag, and a device communication protocol drive that communicates with various weather sensors installed in the field. do.

The middleware includes a real-time data manager that stores weather information received from the point manager and performs a data management and editing function for the weather information.

The middleware includes an application integration manager that communicates through a standard application program interface (API) between the embedded device and an application.

The middleware includes an application template manager which manages screen configuration by a configuration file for each screen and minimizes a graphic user interface (GUI) operation according to a change of business logic.

The middleware is characterized in that the network is redundant to the IEEE 802.X industrial Ethernet ring network.

The data logger further includes a power supply for supplying power and a surge protector to prevent damage of the power supply from surges.

According to the present invention, weather information that changes every moment is observed in real time using a USN functional sensor, and by analyzing the weather related information observed in a data logger (Data loger) equipped with middleware, There is an advantage that can be provided.

In addition, by mounting the middleware in the data logger, even if the observation sensor is added and changed, there is an advantage that the observation sensor can be controlled by software without changing the hardware.

In addition, by transmitting the observation signal of the sensor installed at the site to collect weather-related information in real time to the data logger through the ubiquitous sensor network, it is easy to observe the weather in the area where wired communication is not available, and to use the wired communication method. This has the advantage of reducing the cost of cable installation and cable maintenance.

In addition, it is possible to realize an economic weather observation system by minimizing energy saving and maintenance costs due to low power embedded construction and simplified ICT measurement structure.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a schematic diagram schematically showing an automatic weather observation system based on a ubiquitous sensor network according to an embodiment of the present invention. As shown, in the automatic weather observation system based on the ubiquitous sensor network according to the present invention, the embedded device 10 and the data logger 20 is wirelessly connected through the ubiquitous sensor network, the data logger 20 is CCTV The camera 60 is wired and the data logger 20 and the monitoring terminal 40 are connected online via a LAN via TCP / IP.

The management server 30 is connected to the LAN, and the web management server 50 is connected through the Internet.

In addition to the ZigBee based on USN (Ubiquitous Sensor Network) and IEEE802.15.4 (MAC) wireless access protocols for connection with the embedded device 10 installed at the site collecting weather information, existing wireless communication protocols such as Bluetooth and RF and the future A communication modem can be used according to the wireless communication protocol to be released, and a gateway PC and a sink node can be added to the system.

Ubiquitous refers to an information and communication environment in which a user can freely access a network regardless of a location without being aware of a network or a computer. Ubiquitous first appeared in 1988 when Mark Weiser of Xerox, an American office copier manufacturer, used the term ubiquitous computing.

In other words, Ubiquitous does not add any function to a computer, but rather an information technology (IT) environment or information technology paradigm that enables communication by inserting a computer into any device or object such as a car, a refrigerator, glasses, a clock, or a stereo equipment. It means.

When ubiquitous, information technology can be used not only in homes and cars, but even on top of the mountain, and the number of computer users connected to the network will increase, thereby increasing the size and scope of the information technology industry.

The meteorological observation system applying the ubiquitous technology according to the present invention allows the state information to be collected through the embedded device 10 installed in the facilities of the weather observation site using the ubiquitous technology.

The embedded device 10 is installed to collect weather information at a weather observation site. The embedded device 10 has intelligent embedded software (S / W) installed to store weather information and state information generated by a weather sensor and directly control the sensor, and a wireless module is installed to the data locker 20. Connected to the wireless network.

As shown in FIG. 3, the well-known embedded device 10 processes a plurality of weather sensors 11 installed at a site and observing weather information, and weather information signals observed from the plurality of weather sensors 11. The USN sensor node 13 and the USN sensor node 13 which wirelessly convert the signal processor 12 and the weather information signal processed by the signal processor 12 into a data logger 20 installed remotely. ) Is provided with a battery 14 for supplying driving power.

The plurality of weather sensors 11 includes a wind direction sensor for detecting a wind direction, a wind speed sensor for detecting a wind speed, a solar radiation sensor for detecting a solar radiation amount, a sunshine sensor for sensing a sunlight amount, a humidity sensor for detecting humidity, an atmospheric temperature sensing air temperature, and the like. It includes a detector, a parabolic temperature sensor to detect superficial temperature, a ground temperature sensor to detect ground temperature, a barometric pressure sensor to detect air pressure, and a rainfall detector to detect rainfall, and in addition to these weather sensors, weather observations deemed necessary for meteorological observations. For all sensors.

The signal processor 12 includes an analog / digital converter 12a for converting an analog weather signal output from the analog weather sensor into corresponding digital weather information data when an analog sensor exists in the plurality of weather sensors 11. A sensor interface 12b for interfacing the weather information data converted by the analog-to-digital converter 12a or the digital weather information data directly outputted from the weather sensor 11 when the weather sensor 11 is a digital sensor. ).

In addition, the signal processor 12 further includes a processor 12c for storing, managing, and transmitting weather information data output from the sensor interface 12b, and a timer 12d interoperating with the processor 12c. ), Data SRAM 12e, EPROM 12f, and flash memory 12g.

The USN sensor node 13 is connected to the processor 12c to interface with the weather information collected in the field 13a, and is connected to the air interface 13a to make the weather information into a radio signal to antenna ( RF to wirelessly transmit to the data logger 20 through 13c, and receive configuration management information or control information transmitted from the data logger 20 and provide it to the processor 12c through the air interface 13a. The transceiver 13b is included.

The USN sensor node 13 is synchronized with other USN sensor nodes and serves to relay weather information output from the other USN sensor nodes. That is, it receives relay data transmitted from another USN sensor node through the RF transceiver 13b, and relays it to the data logger 20 in combination with its weather information.

In addition, the USN sensor node 13 performs synchronization with other USN sensor nodes using a multi-hop router module, and directly supports IP to a stack supported by TinyOS without additional gateway support.

As illustrated in FIG. 7, the data logger 20 includes middleware, and the middleware includes a point manager 23 that defines a configuration of the plurality of weather sensors, automatically manages them, and manages a common communication protocol. Equipped.

The point manager 23 includes an event manager 23b for processing an event for a value set in a tag, an alarm manager 23c for generating a message related to an alarm level set in a tag, and a field manager. And a device communication protocol drive 23a that communicates with various installed weather sensors.

The middleware also includes a real-time data manager 24 that stores weather information received from the point manager 23 and performs a data management and editing function for the weather information. ) Will independently manage business logic and weather data.

In addition, the middleware further includes an application integration manager 21 for communicating through a standard API (Application Program Interface) between the embedded device 10 and the application, and manages the screen configuration by the configuration file for each screen, to change the business logic An application template manager 22 that minimizes graphical user interface (GUI) operations.

Such middleware is preferably redundant to a network with an IEEE 802.X Industrial Ethernet Ring network.

In addition, the data logger 20 further includes a power supply 25 for power supply and a surge protector 26 to prevent damage of the power supply 25 from surge.

The ubiquitous sensor network based automatic meteorological observation system according to the present invention configured as described above is redundant based on TCP / IP by providing an embedded device that performs IP-based scalability and integration functions using USN technology, remote monitoring and remote control functions. It is to provide integrated automatic weather observation equipment that can monitor and apply weather information observed from data logger and USN function sensor, which is a data collection module that can minimize obstacles.

Looking at each part in more detail, as shown in FIGS. 3 and 4, the embedded device 10 displays the necessary weather information in real time through a plurality of weather sensors 11 installed at a site for collecting weather information. If the weather sensor 11 is an analog sensor, the signal processor 12 converts the collected analog weather information into digital weather data and processes it through the processor 12c. If 11) is a digital sensor, the processor 12c processes the weather information data collected immediately without performing a separate digital change process, and makes a wireless signal through the USN sensor node 13 to the data logger 20. Will be sent.

In other words, if the observed element is air temperature (portrait, ground, ground temperature), humidity, and air pressure, the data processing unit is 0.1 ° C (temperature, portrait, ground, ground temperature), 0.1% (humidity), 0.1 hPa (air pressure). Becomes At this time, the sampling time of the weather information is set to 10 seconds, and the data processing time interval is set to 1 minute.

If the observed element is wind direction and wind speed, the data unit is wind direction (0.1 degree) and wind speed (0.1m / s), sampling time is 0.25 seconds, and instant wind direction and wind speed are 12 samples for 3 seconds at 0.25 second intervals. The data are averaged and the instantaneous wind direction and wind speed are calculated at 1 second intervals, and the data are processed with the 1 minute average wind direction and wind speed.

If the observation factor is precipitation, the data unit is 0.5mm or 1mm, and 1 minute precipitation is calculated by accumulating the number of pulse signals sent from the sensor every 1 second for 1 minute.

In addition, if the observed element is precipitation, the data unit is set to 10 when ON signal and 00 when off signal, sampling is performed every 1 minute, and data is processed as 10 when precipitation is occurred and 00 when there is no precipitation. .

Here, the signal processor 12 converts an analog signal generated from each sensor to the same USN sensor input level through signal processing (for example, 0 to 3V).

Meanwhile, the USN sensor node 13 performs synchronization between USN nodes using a multi-hop router module. At this time, the synchronization processing time is 1 m / sec for 100 nodes and two multi-hops. Within 2 m / sec during processing.

In addition, the TinyOS stack supported by the USN sensor node 13 supports ALL IPization of the weather sensor 11. An example of the All-IP based USN observation system is illustrated in FIG. 2.

This all-IP implementation supports IP directly with the stack supported by TinyOS without gateway support, IP V6-based auto configuration implementation, and support of upper system and USN web service, XML, Support for SOAP is also possible. An example of the IP support TinyOS stack structure is shown in FIG. 5.

On the other hand, another feature of the present invention is to use a data logger 20, an example of the configuration of the data logger is as shown in FIG.

The functions of the data logger 20 include a signal conversion processing function for converting an analog signal into a digital signal, a software control function for controlling software without hardware change when a weather sensor is added or changed, and a primary quality inspection function. , Time synchronization function, data storage function, and data transmission / reception function.

In order to perform these functions optimally, they must be integrated and versatile, and sufficient data must be stored for scalability, proportionality and elasticity of the hardware, software and firmware, power interruption function, and communication failure. .

As components, program memory, data memory, interfaces (RS-232C, RS-422, RS-485 ports), CCTV video surveillance cameras, control devices including keyboards with displays, analog / digital channels, etc. are required. .

The data logger 20 needs to be mapped with middleware, and the middleware needs a point manager 23 to perform tag-based configuration management and controller protocol management functions, as shown in FIG. 7. Do. The point manager 23 processes the event for the value set in the tag in the event manager 23b, and generates a message related to the alarm level set in the tag in the alarm manager 23c. The generated event data and alarm data are transferred to the real time data manager 24. In addition, the point manager 23 performs a program function (PLC, OPC, etc.) for communication with various controllers installed at the observation site through the device communication protocol driver 23a.

The real time data manager 24 stores and processes the weather information received from the point manager 23. For example, it manages and edits data on received weather information and manages business logic and weather information data independently.

8 illustrates an example of a configuration of a real-time data manager.

In addition, the application integration manager 21 of the middleware communicates through a standard API (Application Program Interface) between the embedded and the application. The configuration of the application integration manager is as shown in FIG. 9 and performs a function of simultaneously linking multiple databases and information in a table, defining source and target information on a screen, defining process logic, and monitoring and managing processes. .

In addition, the application template manager 22 of the middleware performs a function of configuring a screen by a configuration file for each screen and a function of minimizing GUI work according to a change of business logic.

The middleware applied to the present invention includes a network redundancy function. That is, as shown in Figure 12, by applying an industrial Ethernet hub to implement the network redundancy. IEEE 802.3W Rapid Spanning Tree Protocol, 15Ring configuration, switching time is 300m / sec.

In addition, as illustrated in FIG. 13, the datalogger 20 includes a power supply 25 for power supply, and when the supply power includes a surge, a data logger 20 performs a protection function to damage the power supply 25 and other devices from the surge. To prevent it.

Additionally, the use of middleware of the datalogger adds the ability to control the weather sensor with software without hardware changes when the weather sensor is added or changed. That is, the automatic configuration function is provided. In addition, it is possible to provide the function of embedded middleware that can respond with agility by implementing all IP of weather sensor, and minimize the tasks such as additional cable installation and cable maintenance, and low energy embedded construction and ICT layer structure simplify energy The savings and maintenance costs can be minimized.

On the other hand, the monitoring terminal 40 can not only monitor the remote weather conditions in real time through the weather information provided by signal processing from the data logger 20 as described above, but also can easily check the status of the remotely installed equipment. have. This solves the shortcoming of manually checking the remotely installed equipment from time to time, and prevents the waste of human and economic resources associated with manually monitoring the remotely installed equipment.

As an application that can monitor such weather information, it is possible to proceed with projects centered on business logic, increase maintenance and reusability, and re-use of the previous construction page by dynamic generation by the configuration file per screen. It can improve development productivity by minimizing GUI operation by changing business logic and increase productivity of developers who are not familiar with web development. In addition, it is possible to increase the efficiency of integrated management of multiple sites by minimizing individual development characteristics with the standard platform. In addition, it is possible to monitor the observation equipment from a remote location in real time by measuring the observation equipment installed in the weather observation site in real time. It can collect real-time information from various weather observation equipment and analyze the trend with statistical analysis program.

Although the above-described present invention has been described with reference to the embodiments illustrated in the drawings, this is merely exemplary, and it should be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. will be. Accordingly, the true scope of the present invention should be determined only by the appended claims.

1 is a schematic diagram of an automatic weather observation system based on a ubiquitous sensor network according to the present invention.

Figure 2 is a schematic diagram of the all-IP integrated automatic meteorological observation equipment in the present invention.

3 is a block diagram showing the configuration of the embedded device of FIG.

4 is a detailed configuration diagram of each part of FIG. 3.

Figure 5 is an IP-supported TinyOS stack structure diagram applied to the present invention.

6 is a structural diagram of a data logger applied to the present invention.

FIG. 7 is a detailed configuration diagram of the data logger disclosed in FIG. 6. FIG.

8 is a block diagram of a real-time data manager disclosed in FIG.

9 is a configuration diagram of the application integration manager disclosed in FIG.

10 and 11 are diagrams for explaining the advantages of the middleware mounted in the data logger, FIG. 10 is a configuration diagram based on a wireless sensor, and FIG. 11 is a configuration diagram showing an application example.

12 is an exemplary diagram of network redundancy in the present invention.

13 is a circuit diagram of a power supply unit and a surge protector in the present invention.

<Explanation of symbols for the main parts of the drawings>

10... Embedded devices

11... Weather sensor

12... Signal processor

13... USN sensor node

14... battery

20 ... Data logger

21... Application Integration Manager

22 ... Application Template Manager

23 ... Point manager

24... Real time data manager

Claims (18)

delete delete delete In the system for automatic observation of weather based on ubiquitous sensor network, An embedded device provided at a weather observation site and wirelessly transmitting information of a sensor for observing weather information through a ubiquitous sensor network; A data logger wirelessly transmitting and receiving data with the embedded device, having a middleware, receiving, managing and editing weather information transmitted from the embedded device in real time, and controlling a sensor for observing the weather information through the middleware; ; A monitoring terminal for performing data transmission / reception with the data logger through TCP / IP communication and for monitoring weather information managed and edited from the data logger; And a server for transmitting and receiving data through the TCP / IP communication with the data logger and managing the weather information managed and edited from the data logger. The embedded device, Including a USN sensor node to wirelessly transmit weather information signal to a remotely installed data logger, the USN sensor node directly supports IP to the stack (Stack) supported by TinyOS without additional gateway support, The middleware, A ubiquitous sensor network-based automatic meteorological observation system comprising a point manager for defining a configuration of the sensor for observing the weather information, automatically managing, and managing a common communication protocol. delete delete delete The ubiquitous sensor network-based automatic meteorological observation system according to claim 4, wherein the embedded device further comprises a battery for supplying driving power to the USN sensor node. delete delete delete delete The method of claim 4, wherein the point manager communicates with an event manager that processes an event for a value set in a tag, an alarm manager that generates a message related to an alarm level set in a tag, and various weather sensors installed in the field. Ubiquitous sensor network-based automatic meteorological observation system comprising a device communication protocol drive. The ubiquitous sensor network-based automatic system of claim 4, wherein the middleware includes a real-time data manager that stores weather information received from the point manager and performs a data management and editing function for the weather information. Meteorological observation system. The ubiquitous sensor network-based automatic meteorological observation system according to claim 14, wherein the middleware includes an application integration manager that communicates through a standard application program interface (API) between the embedded device and an application. The ubiquitous sensor network base of claim 15, wherein the middleware includes an application template manager that manages screen configurations using a configuration file for each screen and minimizes graphical user interface (GUI) operations according to business logic changes. Automatic Meteorological Observation System. 17. The automatic meteorological observation system according to claim 16, wherein the middleware duplexes the network to an IEEE 802.X industrial Ethernet ring network. The ubiquitous sensor network-based automatic meteorological observation system according to claim 4, wherein the data logger further includes a power supply unit for supplying power and a surge protector to prevent damage of the power unit from surges.

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