KR100824059B1 - Measuring system for variation of ground resistance - Google Patents

Measuring system for variation of ground resistance Download PDF

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KR100824059B1
KR100824059B1 KR1020060088981A KR20060088981A KR100824059B1 KR 100824059 B1 KR100824059 B1 KR 100824059B1 KR 1020060088981 A KR1020060088981 A KR 1020060088981A KR 20060088981 A KR20060088981 A KR 20060088981A KR 100824059 B1 KR100824059 B1 KR 100824059B1
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resistance
change
ground
value
microprocessor
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KR20080013655A (en
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김세호
부창진
김호찬
오성보
안재현
고성민
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김세호
부창진
(주)신원전기
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/20—Measuring earth resistance; Measuring contact resistance, e.g. of earth connections, e.g. plates
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

본 발명의 접지저항 경년변화 측정시스템은 접지저항값을 온라인을 통해 측정함으로써 사용자가 원하는 시간에 특정데이터 값을 취득 가능하게 되고 각 변화인자에 따른 접지저항의 변화값을 얻을 수 있도록 한다. The ground resistance aging change measurement system of the present invention enables the user to acquire a specific data value at a desired time by measuring the ground resistance value online, and to obtain a change value of the ground resistance according to each change factor.

본 발명의 구성은 접지전극과 대지 사이의 저항을 측정하는 측정수단; 상기 측정수단으로부터 측정된 저항값을 디지털 데이터로 변환하고, 적어도 하나 이상의 저항의 변화인자들에 따른 경년변화를 산출하며, 외부로부터 저항의 변화인자를 입력받아 상기 입력된 저항의 변화인자에 따른 저항의 경년변화를 외부로 출력하는 제어부를 포함하고 있다.The configuration of the present invention includes measuring means for measuring the resistance between the ground electrode and the ground; Converts the resistance value measured by the measuring means into digital data, calculates a secular change according to at least one change factor of the resistance, receives a change factor of the resistance from the outside, and then changes the resistance according to the change factor of the input resistance. It includes a control unit for outputting the secular change of the outside.

접지저항, 경년변화, 변화인자 Earth resistance, secular variation, change factor

Description

접지저항 경년변화 측정시스템{measuring system for variation of ground resistance}Measuring system for variation of ground resistance

도 1은 본 발명의 전체시스템을 설명하기 위한 블록도이다.1 is a block diagram illustrating the entire system of the present invention.

도 2는 본 발명의 측정데이터 범위설정을 위한 방법을 나타낸 데이터 표의 구성 및 그래프이다.2 is a configuration and graph of a data table showing a method for setting the measurement data range of the present invention.

도 3은 본 발명의 일실시예의 데이터 처리모듈에서 처리된 최소값, 최대값등을 그래프로이다.Figure 3 is a graph of the minimum value, the maximum value and the like processed in the data processing module of an embodiment of the present invention.

본 발명은 대지와 접지전극 사이의 변화되는 접지저항을 각 저항의 변화인자에 따라 원격지에서 측정하기 위한 접지저항 경년변화 측정시스템에 관한 것이다.The present invention relates to a ground resistance aging change measurement system for measuring the ground resistance that is changed between the ground and the ground electrode at a remote location according to the change factor of each resistance.

접지공사란 시설물 또는 전선에 흐르는 전류를 안전하게 대지로 흐르도록 하는 것으로, 접지공사에서 대지와 접촉되어 전류를 흐르는 터미널을 접지 전극이라 한다. 전류가 접지 전극을 통과하여 대지로 흘러 들어가는 경우, 이 통과의 난이성 기준이 접지저항이다. 접지저항은 전기 안전상 매우 중요한 것으로 접지공사의 성격에 따라서 법에 규정되게 되고, 접지 공사시나 유지관리시에 정확한 접지저항의 측정은 시설물과 사람의 안전에 매우 중요하다. Grounding construction means that current flowing through facilities or wires safely flows to the ground. In the grounding construction, the terminal in contact with the ground and flowing current is called a ground electrode. When current flows through the ground electrode and into the ground, the difficulty criterion for this passage is ground resistance. Grounding resistance is very important for electrical safety, and it is regulated by law according to the nature of grounding work. Accurate measurement of grounding resistance during grounding work and maintenance is very important for facility and human safety.

접지저항의 측정은 접지공사가 이루어진 현장을 방문하여 측정하게 되나, 측정자의 숙련도와 온도, 습도, 측정시간 및 다양한 변화인자에 따라서 차이가 많이 나타나게 되고, 정확한 측정이 이루어지지 않는 경우가 있다. 예를들어 습도가 높은날 측정한 접지저항값은 낮은 값을 나타내게 된다.The measurement of the grounding resistance is measured by visiting the site where the grounding work is made, but there are many differences depending on the proficiency, temperature, humidity, measurement time and various change factors of the measuring person, and the accurate measurement may not be made. For example, the ground resistance measured on days of high humidity will have a lower value.

본 발명은 상기 문제점을 해결하기 위한 것으로, 본 발명의 목적은 접지저항값을 온라인을 통해 측정함으로써 사용자가 원하는 시간에 특정데이터 값을 취득 가능하게 되고 각 변화인자에 따른 접지저항의 변화값을 얻을 수 있도록 하기 위한 것이다.The present invention is to solve the above problems, an object of the present invention is to obtain a specific data value at the time desired by the user by measuring the ground resistance value online and obtain a change value of the ground resistance according to each change factor It is to make it possible.

본 발명의 다른 목적은 유사지역 접지저항 설계시 변동계수(계절변동계수 등)로 데이터화 시킴으로써 접지설계의 정확도를 향상시키기 위한 것이다.Another object of the present invention is to improve the accuracy of the grounding design by making data as variation coefficients (seasonal variation coefficients, etc.) in the design of earthquake resistance in the similar area.

본 발명은 상기의 목적을 달성하기 위한 본 발명의 특징은 접지전극과 대지사이의 저항을 측정하는 측정수단; 상기 측정수단으로부터 측정된 저항값을 디지털 데이터로 변환하고, 온도 또는 습도 중 적어도 하나 이상의 저항의 변화인자들에 따른 경년변화를 산출하며, 외부로부터 저항의 변화인자를 입력받아 상기 입력된 저항의 변화인자에 따른 저항의 경년변화를 외부로 출력하는 제어부를 포함하고, 상기 제어부는 상기 측정수단으로부터 측정된 저항값을 디지털 데이터로 변환하고, 적어도 하나 이상의 저항의 변화인자에 따른 경년변화를 산출하는 제 1 마이크로 프로세서와, 외부로부터 특정의 저항의 변화인자를 입력받아 상기 제 1 마이크로 프로세서에 입력하고, 상기 제 1 마이크로 프로세서로부터 상기 특정의 저항의 변화인자에 따른 저항의 경년변화를 수신받아 외부로 전송하는 제 2 마이크로 프로세서를 포함하는 것이다.The present invention is characterized in that the measuring means for measuring the resistance between the ground electrode and the ground for achieving the above object; Converts the measured resistance value from the measuring means into digital data, calculates the secular variation according to the change factor of at least one of temperature or humidity, and receives the change factor of the resistance from the outside to change the input resistance. And a control unit for outputting the secular change of the resistance according to the factor to the outside, wherein the control unit converts the resistance value measured from the measuring means into digital data and calculates the secular change according to the change factor of at least one resistance. A microprocessor and a change factor of a specific resistance are received from the outside, inputted to the first microprocessor, and a secular change in resistance according to the change factor of the specific resistance is received from the first microprocessor and transmitted to the outside. To include a second microprocessor.

삭제delete

또한, 본 발명에서 상기 제 1 마이크로프로세서는 일정 주기내의 접지저항의 최소값, 최대값, 평균값을 산출하여 상기 제 2 마이크로프로세서에 전송하며, 상기 제 2 마이크로프로세서는 상기 입력된 최소값, 최대값, 평균값, 최빈값을 외부로 전송하는 것이 바람직하다. Further, in the present invention, the first microprocessor calculates the minimum, maximum, and average values of the ground resistance within a predetermined period and transmits the calculated values to the second microprocessor, and the second microprocessor is configured to input the minimum, maximum, and average values. It is desirable to transmit the mode to the outside.

도 1은 본 발명의 전체시스템을 설명하기 위한 블록도 이다.1 is a block diagram illustrating the entire system of the present invention.

마이크로프로세서 I(100)은 접지저항의 변화인자에 따른 측정된 접지저항을 산출하고, 마이크로프로세서 II(200)는 외부로부터 각 변화인자에 따른 접지저항의 경년변화를 마이크로프로세서 I로부터 입력받아 외부로 전송한다.The microprocessor I (100) calculates the measured ground resistance according to the change factor of the ground resistance, and the microprocessor II (200) receives the secular change of the ground resistance according to each change factor from the outside from the microprocessor (I). send.

마이크로프로세서 I(100)은 접지저항계(400)의 측정을 위한 명령어 전송과 수신을 분석할 수 있는 명령어 분석기(130)와 측정데이터의 스케쥴링에 따른 측정 데이터의 범위를 비교하는 데이터 비교기(140), 시간설정이 가능한 리얼타임클럭(150), 측정데이터 저장용 CF/SD 타입의 메모리 구조를 포함하며 IS(110)은 마이크로프로세서II(200)의 제어부(220)에서 전송된 인터럽트에 대한 루틴을 포함한다. The microprocessor I 100 may include a command analyzer 130 capable of analyzing command transmission and reception for measuring the ground resistance meter 400 and a data comparator 140 comparing a range of measurement data according to scheduling of measurement data; The real time clock 150 is settable and includes a CF / SD type memory structure for storing measurement data. The IS 110 includes a routine for interrupts transmitted from the control unit 220 of the microprocessor II 200. do.

또한 접지전류센서(410)에서 측정값은 A/D 컨버터(410)를 통해 데이터 취득되며 키패드(420)와 LCD(430)는 현장에서 장치의 설정이 가능하게 한다. In addition, the measurement value in the ground current sensor 410 is obtained through the A / D converter 410 and the keypad 420 and the LCD 430 enables the setting of the device in the field.

마이크로프로세서 II(200)은 모바일기기(600)에서 수신요구 SMS(610)에 의한 수신 데이터의 처리를 하며 CDMA데이터통신모듈(210)에서 수신하여 제어부(220)에서 처리하게 되며 수신된 내용은 IS(110)을 통해 마이크로프로세서 I(100)로 전송되어 현재 측정시에는 대기하고 비 측정시에 CF/SD 메모리(120)에서 데이터 비교기(140)를 통해 계산하되 사용자가 요구하는 데이터 값을 CDMA데이터통신모듈(210)을 통해 SMS(610)를 통해 모바일기기(600)에 전송하게 된다.The microprocessor II 200 processes the received data by the receiving request SMS 610 in the mobile device 600, receives the data from the CDMA data communication module 210, and processes the received data in the controller 220. Transmitted to the microprocessor I (100) through the (110) to wait for the current measurement and to calculate the data value required by the user in the CF / SD memory 120 through the data comparator 140 in the non-measurement CDMA data Through the communication module 210 is transmitted to the mobile device 600 via the SMS (610).

도 2는 본 발명의 측정데이터 범위설정을 위한 방법을 나타낸 데이터 표의 구성 및 그래프로서 시간당 측정시기를 12분당 데이터 5번 측정으로 설정했을 경우 사용자가 최대값과 최소값을 각각 하나씩을 제외한 나머지 부분의 평균값에 대한 데이터 전송을 요구했을 때 데이터 비교기를 통한 측정값을 전송하게 되며 이때 접지저항값과 접지전류값은 같은 방법으로 계산되어 전송된다. 이때 현장 측정 주기에 대한 데이터와 새로운 측정 주기설정 또한 사용자가 정할 수 있다. 2 is a configuration and graph of a data table showing a method for setting the measurement data range according to the present invention. When the measurement time per hour is set to five measurements per 12 minutes, the user averages the remaining values except for the maximum and minimum values, respectively. When data transmission is requested, the measured value through the data comparator is transmitted, and the ground resistance value and ground current value are calculated and transmitted in the same way. At this point, the data for the field measurement cycle and the new measurement cycle can be set by the user.

접지저항을 측정하기 위해 사용되는 데이터 처리모듈(130)은 측정된 데이터 CF/SD메모리에 저장된 데이터를 일정 기간에 대한 명령어 분석기(140)로 전송된 명령어에 따라 특정기간에 대한 시간 및 날짜 정보에 대해 최소값, 최대값, 평균값,중간값, 최빈값, 표준편차에 대한 데이터를 계산하게 된다. 이러한 처리의 목적은 SMS 전송시 문자의 전송에 제약사항을 가지고 있으므로 접지저항 모든데이터에 대해서 전송이 불가능하여 해석에 필요한 데이터를 확보하여 변동사항을 감시하기 위한 설정이다. 접지저항을 하루 주기동안 측정한 후 SMS를 사용하여 전송하게 되면 계약된 요금 외에 부가적인 추가 비용이 발생하게 되므로 위 모듈을 활용하여 특정 주기의 사용자 요구에 대해 계산된 값을 전송하는 것이 유리하다.The data processing module 130 used to measure the ground resistance is based on the time and date information for a specific period according to the command transmitted to the command analyzer 140 for a predetermined period of data stored in the measured data CF / SD memory The data for the minimum, maximum, average, median, mode, and standard deviation are calculated. The purpose of this process is to set up to monitor the change by securing the data necessary for analysis because it is impossible to transmit all the ground resistance data because it has limitations on the transmission of texts during SMS transmission. If the ground resistance is measured for one day and transmitted using SMS, additional cost will be incurred in addition to the contracted rate. Therefore, it is advantageous to use the above module to transmit the calculated value for the user's demand for the specific period.

도 3은 본 발명의 일실시예의 데이터 처리모듈에서 처리된 최소값, 최대값 등을 그래프로이다.3 is a graph illustrating a minimum value and a maximum value processed in a data processing module according to an embodiment of the present invention.

상기의 목적과 구성을 갖는 본 발명에 따르면, 접지시공 후 접지의 경년변화를 측정하여 유사지역의 계절변동계수값으로 활용이 가능하며, 접지형상에 따른 경년변화도 비교가 가능하게 되어, 보다 안전한 접지시스템을 구축할 수 있게 된다. 또한 SMS의 단점인 측정데이터의 전송의 크기 제한을 현장 설치된 프로세서를 통하여 사용자가 원하는 데이터를 선택적으로 전송받을 수 있다.According to the present invention having the above object and configuration, it is possible to use as a seasonal variation coefficient value of the similar area by measuring the aging change of the ground after ground construction, it is possible to compare the aging change according to the ground shape, more secure It is possible to build a grounding system. In addition, the size limitation of the transmission of the measurement data, which is a disadvantage of the SMS, can be selectively transmitted by the user through the field installed processor.

Claims (3)

접지전극과 대지 사이의 저항을 측정하는 측정수단;Measuring means for measuring a resistance between the ground electrode and the ground; 상기 측정수단으로부터 측정된 저항값을 디지털 데이터로 변환하고, 온도 또는 습도 중 적어도 하나 이상의 저항의 변화인자들에 따른 경년변화를 산출하며, 외부로부터 저항의 변화인자를 입력받아 상기 입력된 저항의 변화인자에 따른 저항의 경년변화를 외부로 출력하는 제어부를 포함하고,Converts the measured resistance value from the measuring means into digital data, calculates the secular variation according to the change factor of at least one of temperature or humidity, and receives the change factor of the resistance from the outside to change the input resistance. It includes a control unit for outputting the secular change of the resistance according to the factor to the outside, 상기 제어부는 상기 측정수단으로부터 측정된 저항값을 디지털 데이터로 변환하고, 적어도 하나 이상의 저항의 변화인자에 따른 경년변화를 산출하는 제 1 마이크로 프로세서와, 외부로부터 특정의 저항의 변화인자를 입력받아 상기 제 1 마이크로 프로세서에 입력하고, 상기 제 1 마이크로 프로세서로부터 상기 특정의 저항의 변화인자에 따른 저항의 경년변화를 수신받아 외부로 전송하는 제 2 마이크로 프로세서를 포함하는 것을 특징으로 하는 접지저항 경년변화 측정시스템. The control unit converts the resistance value measured by the measuring means into digital data, and receives a change factor of a specific resistance from a first microprocessor for calculating a secular change according to at least one change factor of the resistance, and And a second microprocessor which is input to the first microprocessor and receives the secular change of the resistance according to the change factor of the specific resistance from the first microprocessor and transmits it to the outside. system. 삭제delete 제 1 항에 있어서, 상기 제 1 마이크로프로세서는 일정 주기내의 접지저항의 최소값, 최대값, 평균값, 최빈값 중의 적어도 하나를 산출하여 상기 제 2 마이크로프로세서에 전송하며, 상기 제 2 마이크로프로세서는 상기 입력된 최소값, 최대값, 평균값, 최빈값 중 적어도 하나를 외부로 전송하는 것을 특징으로 하는 접지저항 경년변화 측정시스템. 2. The method of claim 1, wherein the first microprocessor calculates and transmits at least one of a minimum value, a maximum value, an average value, and a mode value of the ground resistance in a predetermined period to the second microprocessor, wherein the second microprocessor is configured to input the inputted data. A ground resistance aging change measuring system characterized by transmitting at least one of a minimum value, a maximum value, an average value, and a mode value to the outside.
KR1020060088981A 2006-09-14 2006-09-14 Measuring system for variation of ground resistance KR100824059B1 (en)

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Publication number Priority date Publication date Assignee Title
JPH1115520A (en) * 1997-06-24 1999-01-22 Canon Inc Remote maintenance system for industrial equipment
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KR20030021537A (en) * 2001-09-06 2003-03-15 주식회사 케이디파워 A management system for industrial facilities
KR20040029306A (en) * 2000-11-08 2004-04-06 제너럴 일렉트릭 캄파니 Apparatus and method for detecting and calculating ground fault resistance
KR20050021668A (en) * 2003-08-25 2005-03-07 한국전력공사 Ground resistor analysis system
KR100584185B1 (en) * 2005-12-05 2006-05-29 주식회사 아이센텍이엔씨 Apparatus and method for always monitoring of earth resistance using information communication equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1115520A (en) * 1997-06-24 1999-01-22 Canon Inc Remote maintenance system for industrial equipment
KR20040029306A (en) * 2000-11-08 2004-04-06 제너럴 일렉트릭 캄파니 Apparatus and method for detecting and calculating ground fault resistance
KR20030010872A (en) * 2001-07-27 2003-02-06 김상철 Wireless communication equipment and multi-functional remote management system
KR20030021537A (en) * 2001-09-06 2003-03-15 주식회사 케이디파워 A management system for industrial facilities
KR20050021668A (en) * 2003-08-25 2005-03-07 한국전력공사 Ground resistor analysis system
KR100584185B1 (en) * 2005-12-05 2006-05-29 주식회사 아이센텍이엔씨 Apparatus and method for always monitoring of earth resistance using information communication equipment

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