KR101452742B1 - Remote verification system of a data logger for automatic weather system - Google Patents

Abstract

The present invention relates to a remote verification system of a data logger for an automatic meteorological measurement system which can verify normal or abnormal operation of a data logger in real time from a remote place or the center. Provided are a temperature sensor (300) to measure temperature; a data logger (100) converting an output signal of the temperature sensor (300) into a predetermined format; a communication module (200) sending the data converted by the data logger (100) to the outside; a standard resistance module (500) connected to the data logger (100); and a verification means sending an output signal of the standard resistance module (500) through the communication module (200) based on a control command from the outside.

Description

[0001] The present invention relates to a remote logging system for a data logger for an automatic weather measurement apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data logger for an automatic meteorological instrument, and more particularly to a remote test system for a data logger for an automatic meteorological instrument capable of verifying the normal operation of the data logger in real time at a remote site or at a center.

Automatic Weather System (AWS), which is operated by the Korea Meteorological Administration, is installed in about 500 locations nationwide. Such an automatic meteorological measuring apparatus incorporates various sensors such as a temperature sensor, and transmits the measured weather state to a server (not shown) of the central meteorological center via wired / wireless. The Central Weather Center collects these weather information coming from all over the country in real time and uses it for weather forecasting.

1 is a block diagram schematically showing a conventional automatic watt-hour measurement apparatus. 1, the automatic wake-up measurement apparatus includes a temperature sensor 300, a humidity sensor 310, an air pressure sensor 320, a wind direction sensor 330, an wind speed sensor 340, A 5-channel port for the sensor is provided in the data logger 100.

The data logger 100 converts the analog signal input through the 5-channel input port into a digital signal and stores the digital signal. To this end, five signal data processing circuits, a basic CPU, a RAM, and the like are provided and are connected to the communication module 200. The data logger 100 is tested in an indoor laboratory before installation and use, and it is confirmed whether the performance conforms to the specification.

Then, the communication module 200 is wired by a normal RS-232C protocol.

However, there are times when it is necessary to confirm various weather data inputted in about 500 places nationwide, or to perform field inspection regularly. At present, the worker would carry black equipment and go to the installation site (eg, city, mountainous region, coastal, plain, island, etc.) and perform actual verification and verification.

Therefore, the data logger installed at a specific place at a desired time with a lot of manpower and time has to be verified, so that there is an uneconomic and inconvenient time which requires a lot of budget.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a remote test system for a data logger for an automatic meteorological instrument capable of easily testing a data logger, .

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

The above object of the present invention can be achieved by a temperature sensor (300) for measuring a gas phase; A data logger (100) for converting an output signal of the temperature sensor (300) into a predetermined format; A communication module (200) for transmitting data converted by the data logger (100) to the outside; A standard resistance module 500 connected to the data logger 100; And a verification means for transmitting the output signal of the standard resistance module (500) through the communication module (200) based on the external control command. The remote verification device of the data logger for an automatic meteorological instrument .

Further, the data logger 100 may further include switching means for connecting the data logger 100 to the temperature sensor 300 or connecting the data logger 100 to the standard resistance module 500 based on the external control command.

In addition, it is preferable that the checking means further includes a determining means for determining that the output signal of the standard resistance module 500 is abnormal when the output signal of the standard resistance module 500 is out of the predetermined range value.

In addition, the standard resistance module includes a standard resistor 510 having a constant resistance value at a constant temperature; Constant temperature means for maintaining the standard resistance 510 at a constant temperature; And most preferably a vacuum means for maintaining the standard resistance 510 in a vacuum atmosphere.

The constant temperature means includes a thermistor 540 for measuring the ambient temperature of the standard resistor 510; A heater 550 provided around the standard resistor 510; And a heat insulating material 530 including a standard resistor 510, a thermistor 540, and a heater 550.

The vacuum means includes a vacuum case 520 for sealing the standard resistance 510 and the constant temperature means; And most preferably includes a vacuum port 560 provided at one side of the vacuum case 520 to extract the airtightness of the inside of the vacuum case 520.

The data logger 100 may further be connected to and process data from at least one of the humidity sensor 310, the air pressure sensor 320, the wind direction sensor 330, and the wind speed sensor 340.

The above-described object of the present invention is also achieved by a method of operating a communication module, the method comprising: inputting an external control command through a communication module; Switching the data logger 100 to the self test mode based on the external control command (S200); Stopping the weather measurement of the temperature sensor 300 by the data logger 100 (S300); (S400) the data logger (100) receiving an output signal by applying an internal signal to the standard resistance module (500); And transmitting the output signal to the outside through the communication module 200 (S500). The remote test method of the data logger for the automatic meteorological measuring apparatus can also be achieved.

It is further possible that the switching means switches the self test mode to the weather measurement mode (S600).

In addition, the data logger 100 is connected to any one of the humidity sensor 310, the air pressure sensor 320, the wind direction sensor 330, and the wind speed sensor 340 to perform the stopping step S300 to the transmitting step S500. The method further comprising the step of:

According to an embodiment of the present invention, it is possible to test whether the data logger is abnormal or not in a simple and real-time manner in the central weather center. Therefore, the maintenance cost of the automatic meteorological instrument can be greatly reduced, and more accurate weather data can be obtained.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be apparent to those skilled in the art that various other modifications and variations can be made without departing from the spirit and scope of the invention, All fall within the scope of the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, And shall not be interpreted.
1 is a block diagram schematically showing a conventional automatic watt-hour measurement device,
2 is a block diagram of a remote verification system of a data logger for an automatic meteorological measurement apparatus according to an embodiment of the present invention;
3 is an internal configuration diagram of the standard resistance module 500 shown in FIG. 2,
4 is a flowchart of the operation of the calibration system shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings. Throughout the specification, when a part is connected to another part, it includes not only a case where it is directly connected but also a case where the other part is indirectly connected with another part in between. In addition, the inclusion of an element does not exclude other elements, but may include other elements, unless specifically stated otherwise.

<Organization>

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0028] Hereinafter, a configuration of a remote test apparatus for a data logger for an automatic meteorological measuring apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 2 is a block diagram of a remote verification system of a data logger for an automatic meteorological measurement apparatus according to an embodiment of the present invention. 2, the automatic wake-up measurement apparatus is provided with a temperature sensor 300, a humidity sensor 310, an air pressure sensor 320, a wind direction sensor 330 and an wind speed sensor 340, A 5-channel port is provided in the data logger 100 for the sake of convenience.

The data logger 100 is connected to the sensors 300, 310, 320, 330 and 340 and is also connected to the standard resistance module 500 and the communication module 200.

The data logger 100 converts the analog signal input through the 5-channel port to digital and stores the digital signal. To this end, five signal data processing circuits, a basic CPU, a RAM, and the like are provided and are connected to the communication module 200. In the data logger 100, a verification program to be described later is stored, and is configured to be readable and executable by a CPU or a microcomputer. The data logger 100 is tested in an indoor laboratory prior to installation and use to check whether the performance meets the specification.

The communication module 200 further includes a black network 210 in addition to wired communication by RS-232C for transmitting weather data. That is, the test network 210 is given an IP address on a wired or wireless network. The test network 210 transmits the data transmitted by the data logger 100 to an external network or receives external commands and transmits the data to the data logger 100. The black network 210 may be a TCP / IP Internet, a wireless Internet, or a wireless communication module using 3G, LTE, or the like. In this embodiment, the weather data is communicated via RS-232C, and the separate verification data is configured to communicate with the verification network 210. However, the present invention is not limited thereto. In other words, both the weather data and the verification data may be transmitted through the verification network 210, and various modifications are possible.

3 is an internal configuration diagram of the standard resistance module 500 shown in FIG. The standard resistance module 500 is equipped with a standard resistor 510 therein and is configured to always have a constant resistance value under a constant temperature condition. Therefore, the standard resistance module 500 is used as a criterion for checking whether the data logger 100 is normal or abnormal.

The vacuum case 520 is made of metal or synthetic resin to maintain the airtightness of the vacuum case 520, and can be formed in a substantially box shape.

The heat insulating material 530 functions as a heat insulating material (e.g., styrofoam, foaming material, etc.) provided on the inner surface of the vacuum case 520 and functions to shut the inside and outside so that the inside can always maintain a constant temperature regardless of the external temperature.

The thermistor 540 is a sensor for sensing the temperature inside the standard resistance module 500 and the heater 550 is a coil heater for raising the internal temperature. The inside of the standard resistance module 500 is set to be higher by about 15 to 20 degrees than the room temperature (25 degrees), and the standard resistance 510 is also configured to have a standard resistance value at such a high temperature.

The vacuum port 560 is a port for removing and sealing the air inside the standard resistance module 500.

The standard resistor 510 has four terminals T, T, C, and C, two at both ends, and each terminal extends to the outside of the vacuum case 520.

<How to use>

Hereinafter, a remote test method for a data logger for an automatic meteorological instrument having the above configuration will be described in detail with reference to the accompanying drawings. 4 is a flowchart of the operation of the calibration system shown in FIG. As shown in Fig. 4, first, a user of the central weather center (not shown) transmits a control command to one of a plurality of automatic weather measurement devices. Then, the automatic wake-up measuring apparatus receives an external control command through the communication module 200 (S100). Then, the input control command is sent to the data logger 100.

If the data logger 100 is in the normal weather measurement mode, the switching means in the data logger switches the data logger 100 to the self test mode based on the external control command (S200). The switching means may be a CPU (not shown) or a program code inside the microcomputer.

Then, the data logger 100 stops the weather measurement of the temperature sensor 300 (S300). At this time, if the data logger 100 is in the meteorological measurement using the humidity sensor 310, the air pressure sensor 320, the wind direction sensor 330, and the wind speed sensor 340, this operation is also stopped. However, if necessary, only the channel corresponding to the temperature sensor 300 may be stopped, and the channel for the remaining sensors 310 to 340 may be operated as it is. That is, the data logger 100 can interrupt some or all of the five channels.

Next, the data logger 100 applies the internal voltage signal to the standard resistance module 500 to receive the output signal (S400). The internal signal is sent to the standard resistance module 500 as a signal having a voltage and current of a pre-programmed value. Since the standard resistance module 500 always has a constant resistance value under a constant temperature condition, when an internal voltage signal is applied, an expected output signal due to a voltage drop is expected.

The thermistor 540 detects the temperature inside the standard resistance module 500 so that the standard resistance 510 can be maintained at a constant temperature The heater 550 is turned on and off.

Then, the data logger 100 processes the output signal by a digital filter or the like, and then transmits it to the outside through the communication module 200 (S500). If the data logger 100 operates normally, the output signal transmitted to the outside (central weather center) will have a value within the allowable range. From this criterion, the central weather center can verify in real time that the data logger of the corresponding automatic weather measurement device is operating normally. The verification process can be performed by the data logger 100 itself as well as the external central weather center.

After the transmission is completed, the switching means switches the self test mode back to the weather measurement mode (S600) and performs the normal mission.

If the signal transmitted from the communication module 200 is out of the allowable range, it can be determined that the data logger 100 is malfunctioning. Then, the temperature sensor of the data logger 100 can be stopped by ignoring the value of the temperature sensor or by remote control.

Thereafter, the data logger 100 is connected to any one of the humidity sensor 310, the air pressure sensor 320, the wind direction sensor 330, and the wind speed sensor 340, (S500). &Lt; / RTI &gt; That is, the data log 100 can receive a real-time test for each of five channels to which five sensors are connected.

If one or two of the five channels are determined to be malfunctioning, it may be ignored or the corresponding channel may be stopped and the weather measurement may be performed with the remaining channels alone. If a malfunction is found in any of the above channels, the operator is sent to the field to perform operations such as confirmation, repair, and replacement. For the operator in the field, the self-test mode may be executed by an operator's command (button input) instead of an external control command.

The remote test system described above is not limited to the configurations and methods of the embodiments described above, but the embodiments may be configured such that all or part of the embodiments are selectively combined so that various modifications can be made It is possible.

100: Data logger,
200: communication module,
210: black network,
300: temperature sensor,
310: Humidity sensor,
320: air pressure sensor,
330: a wind direction sensor,
340: wind speed sensor,
500: Standard resistance module,
510: Standard resistance,
520: vacuum case,
530: Insulation material,
540: thermistor,
550: heater,
560: Vacuum port.

Claims (10)

A temperature sensor (300) for measuring the gas phase;
A data logger (100) for converting an output signal of the temperature sensor (300) into a predetermined format;
A communication module (200) for transmitting data converted by the data logger (100) to the outside;
A standard resistance module 500 coupled to the data logger 100; And
And means for transmitting an output signal of the standard resistance module (500) based on an external control command through the communication module (200). The method according to claim 1,
Further comprising switching means for connecting the data logger (100) to the temperature sensor (300) or connecting the data logger (100) to the standard resistance module (500) based on the external control command Logger's remote verification device. The method according to claim 1,
Wherein the checking means further comprises determining means for determining that the output signal of the standard resistance module (500) is abnormal when the output signal of the standard resistance module (500) is out of a predetermined range value. The method according to claim 1,
The standard resistance module includes:
A standard resistor 510 having a constant resistance value at a constant temperature;
A constant temperature means for maintaining the standard resistance 510 at a constant temperature; And
And a vacuum means for maintaining the standard resistor (510) in a vacuum atmosphere. 5. The method of claim 4,
The temperature-
A thermistor 540 for measuring the ambient temperature of the standard resistor 510;
A heater 550 provided around the standard resistor 510; And
And a heat insulating material (530) including the standard resistor (510), the thermistor (540) and the heater (550). 5. The method of claim 4,
Wherein the vacuum means comprises:
A vacuum case 520 sealing the standard resistance 510 and the constant temperature means;
And a vacuum port (560) provided at one side of the vacuum case (520) for extracting the airtightness of the inside of the vacuum case (520). The method according to claim 1,
The data logger 100 is further connected to at least one of the humidity sensor 310, the air pressure sensor 320, the wind direction sensor 330, and the wind speed sensor 340 to process data therefrom Remote monitoring device of data logger for automatic meteorological measuring device. A step S100 of inputting an external control command through the communication module 200;
Switching the data logger (100) to a self test mode based on the external control command (S200);
The data logger 100 interrupts the meteorological measurement of the temperature sensor 300 (S300);
The data logger 100 receiving the output signal by applying the internal signal to the standard resistor module 500 (S400); And
And transmitting the output signal to the outside through the communication module (200) (S500). The remote test method of a data logger for an automatic watt-hour measurement device. 9. The method of claim 8,
Further comprising a step (S600) of switching the self-test mode to the weather measurement mode by the switching means. 9. The method of claim 8,
The data logger 100 is connected to any one of the humidity sensor 310, the air pressure sensor 320, the wind direction sensor 330 and the wind speed sensor 340 to perform the steps S300 to S500, The method comprising the steps of: (a) providing a data logger for a meteorological instrument;

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