KR101051429B1 - Underground sensor data acquisition device and method using underground sensor interface module - Google Patents

Abstract

Disclosed are an apparatus and a method for acquiring underground sensor data using the underground sensor interface module. According to an aspect of the present invention, an apparatus for acquiring data using an underground sensor interface module includes: an underground sensor interface module configured to store underground sensor information including a type of an underground sensor, an interface method of the underground sensor, and a power supply condition of the underground sensor; And a wireless sensor network module that reads the ground sensor information from the ground sensor interface module, sets a data interface and a power interface suitable for the ground sensor, and acquires data measured from the ground sensor through the ground sensor interface module. It is characterized by.

Accordingly, efficient data acquisition is possible from a plurality of underground sensors installed globally, and various kinds of underground sensors can be measured using one wireless sensor network module.

Underground Sensor, Sensor Network

Description

Ground sensor data acquisition device and method using underground sensor interface module {ACQUIRING APPARATUS AND METHOD OF UNDERGROUND SENSOR DATA USING UNDERGROUND SENSOR INTERFACE MODULE}

The present invention relates to an underground sensor data measuring apparatus and method, and more particularly, to an underground sensor using an underground sensor interface module capable of efficiently obtaining data from a plurality of underground sensors installed globally using the underground sensor interface module and a wireless sensor network module. A sensor data acquisition device and method are disclosed.

There are various sensors installed in the ground such as pore pressure gauge, earth pressure gauge, thermometer and soil moisture meter. In order to acquire data from these underground sensors, it is necessary to grasp the exact point of the location where the underground sensors are installed by using manpower, and the measuring equipment suitable for each underground sensor is required.

There are two methods of acquiring data from underground sensors: analog and digital. Analog methods include a current measuring method for measuring a current of 4 ~ 20mA to 0 ~ 20mA, and a voltage measuring method for measuring a voltage of 0 ~ 5V to 0 ~ 10V. In the digital method, the sensor converts data to digital and transmits the data.

These methods are different from the power supply required for each sensor, the data measurement method of the sensor, and the like. For example, the current measuring method of the analog method is a method of converting the current output from the sensor to the voltage in the measuring equipment by supplying the average power of 24V DC or more from the measuring equipment to the sensor from the measuring equipment, and the digital method of 3V ~ 5V It measures the digital data by inputting power, clock and command.

Therefore, when various kinds of underground sensors are installed in a large amount in a wide range, it is difficult to accurately extract data values of each sensor in order to grasp the underground environment in the same time zone. There is a problem that the cost is increased.

SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus and method for efficiently acquiring data from a plurality of underground sensors installed globally using a wireless sensor network module and an underground sensor interface module. To provide.

The object of the present invention is not limited to the above-mentioned object, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

Underground sensor data acquisition device using the ground sensor interface module according to an aspect of the present invention for achieving the above object is a ground sensor information including the type of the ground sensor, the interface method of the ground sensor, the power supply conditions of the ground sensor Read the ground sensor information from the ground sensor interface module and the ground sensor interface module stored therein to set a data interface and a power interface suitable for the ground sensor to obtain data measured from the ground sensor through the ground sensor interface module. It includes a wireless sensor network module.

The underground sensor interface module receives a flash memory in which the ground sensor information is stored in a table form, a power interface unit for transferring power supplied from the wireless sensor network module to the ground sensor, and receives data measured from the ground sensor. Characterized in that it comprises a data interface for transmitting to the wireless sensor network module.

The wireless sensor network module supplies power to the flash memory, reads the ground sensor information from the flash memory, and uses the ground sensor controller and the ground sensor information to control the ground sensor according to the ground sensor information. And an underground sensor data control unit for setting a data port, a data path, and a timing corresponding to the interface of the underground sensor, and an underground sensor power control unit for supplying power to the underground sensor using the underground sensor information.

The underground sensor data control unit may include an analog multiplexer for interfacing a plurality of underground sensors, a digital data interface unit for providing digital data transmission paths between the analog multiplexer and a wireless sensor network input / output (I / O) unit, and the analog multiplexer. It characterized in that it comprises an analog data interface for transmitting to the analog / digital conversion unit for converting the analog signal sequentially output through the digital signal.

The ground sensor power control unit is a power conversion unit for converting the power of the wireless sensor network module to the required power of the ground sensor according to the power information of the ground sensor and the ground sensor data controller forms an interface with the ground sensor, When the power conversion is completed in the power conversion unit, characterized in that it comprises a power on / off control unit for supplying power to the underground sensor through the power interface of the underground sensor interface module.

The ground sensor information may include unique ID information for each ground sensor that can identify a plurality of ground sensors by type, a power type indicating whether a voltage required by the ground sensor is DC or AC, and a minimum voltage required by the ground sensor. Power supply condition including value, maximum voltage value, minimum current value and maximum current value, interface type indicating whether the underground sensor's data transmission method is analog or digital, stabilization time, response time, data And timing information including the holding time and the reset time information.

The ground sensor information is stored in a table form.

According to another aspect of the present invention, a method of acquiring underground sensor data using an underground sensor interface module includes information about underground sensor information including a type of the underground sensor, an interface method of the underground sensor, and a power supply condition of the underground sensor. Acquiring and setting a data interface including a data port and a data path corresponding to the underground sensor using the ground sensor information; and a power interface for supplying power required for the ground sensor using the ground sensor information. And acquiring data from the underground sensor by adding the timing information.

The method of acquiring the ground sensor data further includes inputting ground sensor information into a flash memory of the ground sensor interface module.

According to the present invention, it is possible to efficiently acquire the periodic ground sensor data by using a ground sensor interface module away from the method of monitoring the non-periodic ground sensor using a large number of manpower to measure the conventional ground sensor data. .

In addition, by obtaining the information of the ground sensor through the flash memory of the ground sensor interface module, using the same wireless sensor network module without the prior information search process of the plurality of underground sensors installed and the process of having individual measurement equipment The underground sensor can be measured.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various different forms, and the present embodiments are only provided to complete the disclosure of the present invention, and the general knowledge in the art to which the present invention pertains. It is provided to fully inform those skilled in the art of the scope of the invention, which is to be defined by the scope of the claims.

1 is a diagram illustrating a configuration for acquiring data of a ground sensor using a ground sensor interface module according to an embodiment of the present invention, and FIG. 2 is a diagram of a ground sensor interface module and a wireless sensor network module according to an embodiment of the present invention. It is a figure which shows a block structure.

1 to 2, in order to acquire the data of the underground sensor using the underground sensor interface module according to an embodiment, the plurality of underground sensors 300_1, 300_2,..., 300_n, and the wireless sensor network module 200 are provided. The underground sensor interface module 100 is required.

The underground sensor interface module 100 mediates data transmission between the plurality of underground sensors 300_1, 300_2,..., 300_n and the wireless sensor network module 200. The underground sensor interface module 100 is installed on the topsoil surface, and is connected to the plurality of underground sensors 300_1, 300_2,..., 300_n by wire and is connected to the wireless sensor network module 200.

The ground sensor interface module 100 includes a plurality of ground sensors 300_1, 300_2,..., 300_n, and the ground sensor information may be controlled by the wireless sensor network module.

The underground sensor interface module 100 includes a flash memory 110, a power interface unit 120, and a data interface unit 130.

The flash memory stores the ground sensor information in the table form of FIG. 3. The flash memory may update the information of the underground sensors when an underground sensor installed at a predetermined place below the ground surface is added or removed.

When the power is supplied to the flash memory 110 from the wireless sensor network module 200 and the information of the underground sensor is requested, the flash memory 110 includes power information of the underground sensor stored in a table form, an interface type, and the like. The underground sensor information is transmitted to the wireless sensor network module 200.

The power interface unit 120 receives power required by the underground sensor from the wireless sensor network module 200 and supplies power to the underground sensor.

The data interface unit 130 receives data measured from the underground sensor and transmits the measured data to the wireless sensor network module 200.

The power interface unit 120 and the data interface unit 130 may be changed according to the power information and data interface type required by each underground sensor using the respective ground sensor information in the wireless sensor network module 200. To be controlled.

For example, when a predetermined underground sensor requires a power supply of DC 25V and transmits data in an analog manner, the underground sensor reads the power information and interface information from the flash memory to an analog interface unit 243 which describes a data transmission path. And, the power interface unit 120 for the DC 25V power supply of the wireless sensor network module 220 is set.

The wireless sensor network module 200 includes the underground sensor control unit 210, the wireless sensor network module power supply unit 210, the underground sensor power control unit 230, the underground sensor data control unit 240, and the sensor network input / output unit (I / O) unit ( 250, an analog / digital converter 260.

The underground sensor controller 210 supplies predetermined power to the flash memory 110 of the underground sensor interface module 100 (21) to request underground sensor information (22), and transmits the underground sensor information to the wireless sensor network module 200. Read into the underground sensor control unit 210 (23). After determining the type, interface method, and power supply condition of the ground sensor from the ground sensor information, the ground sensor is controlled by a power interface, a data interface, and a timing corresponding to the ground sensor.

Meanwhile, when the new ground sensor is installed in the ground, the ground sensor controller 210 may provide the new ground sensor information (type of ground sensor, interface method, power supply condition) to the flash memory 110 in the ground sensor interface module 100. Etc.) can be recorded.

In addition, the underground sensor controller 210 may selectively acquire data from among the plurality of underground sensors 300_1, 300_2,..., 300_n information stored in the flash memory 110.

The wireless sensor network module power supply unit 210 is a power supply part of the wireless sensor network module 200 itself, and supplies power to the underground sensor interface module 100 connected to the wireless sensor network module 200 so as to supply the flash memory 110. ).

In addition, by using the power supply information from the underground sensor information read from the flash memory 110 to supply the power required by the underground sensor, the underground sensor power control unit 230 controls the power conversion unit 232 to the underground sensor Supply the power you need.

Underground sensor power control unit 230 is a power conversion unit 232 and the ground sensor data control unit 240 for converting the power of the wireless sensor network module 200 to the voltage required by the underground sensor forms an interface with the underground sensor And the power conversion unit 232 includes a power on / off control unit 231 for actually supplying the power required for the underground sensor when the power is stabilized and the required power conversion of the underground sensor is completed.

The underground sensor data controller 240 provides digital data transmission paths between the analog multiplexer 241, the analog multiplexer 241, and the wireless sensor network input / output (I / O) unit for interfacing a plurality of underground sensors. The interface unit 242 includes an analog data interface unit 243 for transferring data received from the analog multiplexer 241 to the analog / digital converter 260.

The analog multiplexer 241 sequentially selects and outputs one input data by a logic circuit. When the ground sensor controller 210 determines the interface of the ground sensor in an analog manner, the ground sensor data controller 240 sets the data path of the analog multiplexer 241 to the analog data interface 243 to convert the analog data into digital data. To convert.

Since the physical quantities of the sensor voltage, sensor current, and sensor resistance of each of the plurality of underground sensors are different from each other, power must be applied to match the power information of each sensor, and by using the underground sensor interface module according to the present invention, Through the process of controlling the plurality of underground sensors in the wireless sensor network module it is possible to easily obtain data from the multiple sensors.

In addition, through the underground sensor interface module, when the location of each underground sensor is different from each other, it is possible to easily grasp the underground environment in the same time zone when the underground sensor is installed in large quantities in a wide range.

 3 is a data structure in which underground sensor information is stored in a table form according to an embodiment of the present invention.

Referring to FIG. 3, the ground sensor information may be largely divided into a field storing power information of the ground sensor and a field storing ground sensor interface information.

In the front end, when a plurality of underground sensors are installed in the underground, information on the unique ID of each ground sensor and the type of the ground sensors that can identify each ground sensor is stored.

Since the power information required by the underground sensor is different for each underground sensor, the power type information of the sensor (for example, DC power or AC power), together with the minimum voltage value, minimum current value and each underground sensor for driving each underground sensor The maximum allowable voltage value and maximum current value are stored. In addition, additional information (eg, a plurality of power information, etc.) about power is stored in the reserved space.

Next, information about the underground sensor interface is stored, and the interface type and interface detail information indicating information of whether the ground sensor data transmission method is analog or digital is stored.

In addition, information about the number of signal lines necessary for the underground sensor to transmit data to the underground sensor interface module and detailed information of each signal line (eg, signal line 1, signal line 2, signal line 3, signal line 4, etc.) Stored.

When power is supplied through the wireless sensor network module 200 according to predetermined power information, the wireless sensor network module 200 acquires data from each underground sensor using predetermined timing information.

The timing information is set by the wireless sensor network module 200 to supply power and to stabilize the time until the data request is made, the response time to respond by passing the data after the data request, the data holding time after the response, and reset if necessary It may be configured to include additional information such as the time required for.

The above-described underground sensor information is stored in the flash memory 110 in the underground sensor interface module 100 in the form of a table, but the storage form of the information is not limited to the table form.

4 is a flowchart illustrating a method of acquiring underground sensor data using the underground sensor interface module according to an exemplary embodiment of the present invention.

First, the ground sensor information is input to the flash memory 110 of the ground sensor interface module 100 (S301). When the ground sensor is added, new ground sensor information may be added, or when the existing ground sensor is removed, the existing ground sensor information may be deleted in the flash memory 110.

When the wireless sensor network module 200 reads the ground sensor information including the type of the ground sensor, the interface method of the ground sensor, and the power supply condition of the ground sensor from the ground sensor interface module 100, a data port suitable for the ground sensor, A data interface including a data path is set (S303).

When the data interface is set, a power interface is set to supply power to the ground sensor using the ground sensor information (S305). In addition, the timing information is added to acquire data from the underground sensor (S307).

Those skilled in the art will appreciate that the present invention can be embodied in other specific forms without changing the technical spirit or essential features of the present invention. For example, the ground sensor interface module and the wireless sensor network module according to the present invention may be implemented in various forms such as a recording medium in which a program for realizing a method for controlling a plurality of underground sensors distributed globally is recorded. have. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not limiting. The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present disclosure. Should be.

1 illustrates a configuration for acquiring data of a ground sensor using the ground sensor interface module in an embodiment of the present invention.

2 is a block diagram illustrating a ground sensor interface module and a wireless sensor network module in an embodiment of the present invention.

3 is a data structure in which underground sensor information is stored in a table form according to an embodiment of the present invention.

4 is a flowchart illustrating a method of acquiring underground sensor data using the underground sensor interface module according to an exemplary embodiment of the present invention.

`` Explanation of major symbols in drawings ''

100: underground sensor interface module 110: flash memory

120: underground sensor power interface unit 130: underground sensor data interface unit

200: wireless sensor network module 210: underground sensor control unit

220: wireless sensor network module control unit 230: underground sensor power control unit

240: underground sensor data control unit 250: USN I / O

260: analog / digital converting unit 300_1,300_2,... , 300_n: underground sensor

Claims (9)

An underground sensor interface module for storing underground sensor information including a type of an underground sensor, an interface method of the underground sensor, and a power supply condition of the underground sensor; And And a wireless sensor network module that reads the ground sensor information from the ground sensor interface module, sets a data interface and a power interface suitable for the ground sensor, and acquires data measured from the ground sensor through the ground sensor interface module. , The underground sensor interface module, A flash memory in which the underground sensor information is stored in a table form; A power interface transferring power supplied from the wireless sensor network module to the underground sensor; And And a data interface for receiving the measured data from the underground sensor and transferring the measured data to the wireless sensor network module. The wireless sensor network module, An underground sensor controller for supplying power to the flash memory, reading the ground sensor information from the flash memory, and controlling the ground sensor according to the ground sensor information; An underground sensor data controller configured to set a data port, a data path, and a timing corresponding to the interface of the underground sensor using the underground sensor information; And An underground sensor power control unit for supplying power to the underground sensor using the underground sensor information; Underground sensor data acquisition device using a underground sensor interface module comprising a. delete delete The ground sensor data control unit of claim 1, wherein An analog multiplexer for interfacing a plurality of underground sensors; A digital data interface unit providing a transmission path of digital data between the analog multiplexer and a wireless sensor network input / output unit; And An analog data interface for transmitting an analog signal sequentially output through the analog multiplexer to an analog / digital converter for converting the analog signal into a digital signal; Underground sensor data acquisition device using a underground sensor interface module comprising a. According to claim 4, wherein the underground sensor power control unit A power conversion unit converting the power of the wireless sensor network module into the required power of the underground sensor according to the power information of the underground sensor; And A power on / off controller configured to form an interface with the ground sensor data controller and to supply power to the ground sensor through a power interface of the ground sensor interface module when power conversion is completed in the power converter; Underground sensor data acquisition device using a underground sensor interface module comprising a. The ground sensor information of claim 1, wherein Unique ID information for each underground sensor that can identify a plurality of underground sensors by type, A power supply type indicating whether the voltage required by the underground sensor is DC or AC, a power supply condition including a minimum voltage value, a maximum voltage value, a minimum current value, and a maximum current value required by the underground sensor; An interface type indicating whether the underground sensor data transmission method is analog or digital; Underground sensor data acquisition device comprising a timing information including the stabilization time, response time, data holding time and reset time information in the data transmission process. The method of claim 6, Underground sensor data acquisition device using the underground sensor interface module that the ground sensor information is stored in the form of a table. Obtaining underground sensor information including a type of the ground sensor, an interface method of the ground sensor, and a power supply condition of the ground sensor from the ground sensor interface module; Setting a data interface including a data port and a data path suitable for the underground sensor using the ground sensor information; Setting a power interface to supply power to the underground sensor using the ground sensor information; And Acquiring data from the underground sensor by adding timing information; underground sensor data acquisition method using the underground sensor interface module. The method of claim 8, A method of acquiring underground sensor data using the underground sensor interface module, the method comprising: inputting the ground sensor information to a flash memory of the underground sensor interface module.

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