KR950019746A - Multi-meter connection device of subscriber matching device and pulse counting method thereof - Google Patents

Multi-meter connection device of subscriber matching device and pulse counting method thereof Download PDF

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Publication number
KR950019746A
KR950019746A KR1019930027496A KR930027496A KR950019746A KR 950019746 A KR950019746 A KR 950019746A KR 1019930027496 A KR1019930027496 A KR 1019930027496A KR 930027496 A KR930027496 A KR 930027496A KR 950019746 A KR950019746 A KR 950019746A
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KR
South Korea
Prior art keywords
pulse
meter
subscriber matching
matching device
inn
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KR1019930027496A
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Korean (ko)
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KR950014750B1 (en
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서칠수
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성기설
금성계전 주식회사
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Publication of KR950019746A publication Critical patent/KR950019746A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/02—Measuring characteristics of individual pulses, e.g. deviation from pulse flatness, rise time or duration

Abstract

본 발명은 원격검침시스템의 가입자 정합장치의 복수계량기 접속장치 및 그 펄스카운팅 방법에 관한것으로, 종래 원격검침기는 계량기를 1대밖에 접속할 수 없다는 점을 해결키 위해 펄스용 계랑기의 펄스선을 계량기에 있는 펄스발생용 리드 스위치에 접속하여 이 스위치의 온/오프에 따라 입력펄스를 받아들이도록 구성하고, 사이 입력단의 로직상태를 임의의 주기로 n번 체킹하여 n번 모두 하이일 경우 하이로 인식하고, 로우로 상태가 바뀐 후 n번 체크하여 n번 모두 로우일 경우 현재의 계량값에 1을 가산하는 방법으로 펄스를 카운팅함으로써 1대의 가입자 정합장치에 복수개의 계랑기를 접속할 수 있도록 함과 동시에 발생펄스를 카운팅할 수 있도록 한 것이다.The present invention relates to a multi-meter connection device of the subscriber matching device of the remote metering system and a pulse counting method thereof, in order to solve the problem that only one meter can be connected to the conventional remote metering device to measure the pulse line of the pulse meter Connect to the pulse generating reed switch in the circuit and configure it to accept the input pulse according to the on / off of this switch.Check the logic state of the input terminal n times at random intervals and recognize as high when all n times are high. After changing status to low, check n times and if n times are all low, count 1 by adding 1 to the current weighing value, so that multiple relays can be connected to one subscriber matching device while generating pulses. Counting is done.

Description

가입자 정합장치의 복수계량기 접속장치 및 그 펄스 카운팅 방법Multi-meter connection device of subscriber matching device and pulse counting method thereof

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 가입자 정합장치에 있는 계량기 접속을 위한 펄스입력 인터페이스 회로도.2 is a pulse input interface circuit diagram for connecting a meter in a subscriber matching device.

제3도는 제2도의 리드 스위치의 상세구성도.3 is a detailed configuration diagram of the reed switch of FIG.

제4도는 본 발명의구성도.4 is a block diagram of the present invention.

Claims (6)

원격검침시스템의 가입자 정합장치와 계량기 접속장치에 있어서, 중앙처리장치(CPU)의 펄스 콘트롤단(CTRL)에 저항(R1)을 통하여 베이스단이 접속된 스위칭용 트랜지스터(TR1)와, 상기 트랜지스터(TR1)의 콜렉터단에 병렬로 접속된 복수개의 역전류 방지용 다이오드(D1-Dn)와, 상기 다이오드(D1-Dn)에 각각 접속되어 계량기 접속을 위한 스위치(SW1-SWn)와, 상기 스위치(SW1-SWn)에 접속된 고주파 노이즈 제거용 로우패스필티(LPF)와, 전압원(+5V)에 접속된 저항(R2) 및 상기 로우패스필터(LPF)에 입력단이 접속되고 중앙처리장치(CPU)의 펄스입력단(IN1-INn)에 출력단이 접속된 슈미트 트리거(S1-Sn)로 구성됨을 특징으로 하는 가입자 정합장치의 복수계량기 접속장치.A subscriber matching device and a meter connection device of a remote meter reading system, comprising: a switching transistor TR1 having a base end connected to a pulse control terminal CTRL of a central processing unit CPU through a resistor R1, and the transistor ( A plurality of reverse current prevention diodes D1-Dn connected in parallel to the collector terminal of TR1, the switches SW1-SWn for connecting a meter, respectively, connected to the diodes D1-Dn, and the switch SW1. A low pass filter (LPF) for high frequency noise removal connected to -SWn, a resistor (R2) connected to a voltage source (+ 5V) and an input terminal are connected to the low pass filter (LPF), and the central processing unit (CPU) A multi-meter meter connection device of a subscriber matching device, comprising: a Schmitt trigger (S1-Sn) having an output terminal connected to a pulse input terminal (IN1-INn). 원격검침시스템의 펄스 카운팅 방법에 있어서, 중앙처리장치(CPU)의 펄스 입력단(IN1-INn)의 로직상태를 일정주기로 n번 체킹하여 n번 모두 하이상태일 경우 하이로 인식하는 단계(S10)와, 상기 펄스 입력단(IN1-INn)의 로직상태가 로우로 바뀌었는가를 연속 n번 체킹하여 n번 모두 로우상태일경우 현재의 계량값에 1을 가산하는 단계(S20)를 순차수행하여 이루어짐을 특징으로 하는 가입자 정합장치의 복수계량기의 펄스 카운팅방법.In the pulse counting method of the remote meter reading system, checking the logic state of the pulse input terminal (IN1-INn) of the central processing unit (CPU) n times at a predetermined period and recognizing it as high when all n times are high (S10) and If the logic state of the pulse input terminal (IN1-INn) is changed to low n times, if the n times all low state, the step of adding 1 to the present weighing value (S20) A pulse counting method of a multimeter of a subscriber matching device. 제2항에 있어서, 상기 단계(S10)는 상기 펄스 입력단(IN1-INn)이 하이상태인가를 일정주기 간격으로 n회 판단하는 단계(S1-S6)와, 상기 단계(S1-S6) 수행후 일정시간 딜레이 후, 레지스터(R)를 1로하는 단계(S7,S8)로 이루어짐을 특징으로 하는 가입자 정합장치의 복수계량기 펄스 카운팅 방법.3. The method of claim 2, wherein the step S10 is performed by determining whether the pulse input terminals IN1 -INn are in a high state n times at regular intervals (S1-S6), and after performing the steps S1-S6. And a multi-meter pulse counting method of a subscriber matching device, characterized in that the register (R) is set to 1 after a predetermined time delay. 제2항에 있어서, 상기 단계(S20)는 상기 펄스 입력단(IN1-INn)이 로우상태인가를 일정주기 간격으로 n회 판단하는 단계(S11-S15)와, 상기 단계(S11-S15)에서의 판단결과 n번 모두 펄스 입력단(IN1-INn)이 루우상태라 판단될 경우 현재의 계량값에 1을 가산하는 단계(S16)와, 상기 레지스터(R)를 0으로 하는 단계(S17)로 이루어짐을 특징으로 하는 가입자 정합장치의 복수계량기 펄스 카운팅 방법.The method of claim 2, wherein the step S20 determines whether the pulse input terminals IN1-INn are in a low state n times at regular intervals (S11-S15) and in the steps S11-S15. If it is determined that the pulse input stages IN1-INn are all in a n-decision state as a result of the determination, step S16 is added to the current weighing value (S16), and the register R is set to 0 (S17). A multi-meter pulse counting method of a subscriber matching device. 제3항 또는 제4항에 있어서, 상기 일정주기는 100msec임을 특징으로 하는 가입자 정합장치의 복수계량기 펄스 카운팅 방법.5. The method according to claim 3 or 4, wherein the predetermined period is 100 msec. 제3항 또는 제4항에 있어서, 상기 n은 3임을 특징으로 하는 가입자 정합장치의 복수계량기 펄스카운팅 방법.5. The method according to claim 3 or 4, wherein n is three. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930027496A 1993-12-13 1993-12-13 Subscriber interface unit KR950014750B1 (en)

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KR1019930027496A KR950014750B1 (en) 1993-12-13 1993-12-13 Subscriber interface unit

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KR950019746A true KR950019746A (en) 1995-07-24
KR950014750B1 KR950014750B1 (en) 1995-12-14

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000040441A (en) * 1998-12-18 2000-07-05 전주범 Data recognition method of remote metering system
KR20030012344A (en) * 2001-07-31 2003-02-12 엘지산전 주식회사 Telemetrering terminal and method of recognizing a gauge pulse using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000040441A (en) * 1998-12-18 2000-07-05 전주범 Data recognition method of remote metering system
KR20030012344A (en) * 2001-07-31 2003-02-12 엘지산전 주식회사 Telemetrering terminal and method of recognizing a gauge pulse using the same

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