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JPH0870488A - Radio meter inspection system - Google Patents

Radio meter inspection system

Info

Publication number
JPH0870488A
JPH0870488A JP20202494A JP20202494A JPH0870488A JP H0870488 A JPH0870488 A JP H0870488A JP 20202494 A JP20202494 A JP 20202494A JP 20202494 A JP20202494 A JP 20202494A JP H0870488 A JPH0870488 A JP H0870488A
Authority
JP
Japan
Prior art keywords
meter
radio equipment
intermittent reception
wireless device
radio
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP20202494A
Other languages
Japanese (ja)
Inventor
Hatsuo Takahashi
初夫 高橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aichi Tokei Denki Co Ltd
Original Assignee
Aichi Tokei Denki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aichi Tokei Denki Co Ltd filed Critical Aichi Tokei Denki Co Ltd
Priority to JP20202494A priority Critical patent/JPH0870488A/en
Publication of JPH0870488A publication Critical patent/JPH0870488A/en
Pending legal-status Critical Current

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  • Selective Calling Equipment (AREA)

Abstract

PURPOSE: To attain the compatibility of the low power consumption of a reception circuit and the occasionality of meter inspection by setting or changing the period of the intermittent reception of a first radio equipment to an arbitrary value from a second radio equipment. CONSTITUTION: The first radio equipment 2 attached to a meter 1 executes reception operation intermittently usually a comparatively long period in order to reduce power consumption. For inspecting the meter, it is enough for the meter 1 to be started in conformity with the time of intermittent reception. Then, at the time when it is desired to communicate frequently, i.e., at the time of installation or mentenance, etc., a changing instruction is issued from the second radio equipment 9 so as to shorten the intermittent reception period of the first radio equipment 2 in conformity with the time of the intermittent reception of the first radio equipment 2. After that, since the first radio equipment 2 executes the intermittent reception in a short period, occasional communication becomes practically possible similarly to normal reception. After prescribed work is finished, an instruction to return the period to the original one is sent from the second radio equipment 9 to the first radio equipment 2, and the first radio equipment 2 shifts to the operation of the low power consumption.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は無線を利用した水、ガ
ス、電気等の(自動検針を含む)検針システム、いわゆ
る無線検針システムに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless meter reading system for water, gas, electricity, etc. (including automatic meter reading), a so-called wireless meter reading system.

【0002】[0002]

【従来の技術】無線検針システムでは、特に受信回路の
消費電力を低減して、受信側のメータの電池寿命を延ば
すために、次の二つの方式がある。
2. Description of the Related Art In a wireless meter reading system, there are the following two methods for reducing the power consumption of a receiving circuit and extending the battery life of a meter on the receiving side.

【0003】(1).一定周期で、受信回路へ間欠的に
電源を供給する間欠受信方式。この間欠受信方式は、メ
ータ側無線機が通常比較的長い(例えば数拾秒〜数分)
周期T1 で短時間τの間受信回路を作動させて、周期T
1 の間欠受信を行なっている(図4参照)。
(1). An intermittent reception system that supplies power to the receiving circuit intermittently at a fixed cycle. In this intermittent reception method, the meter-side radio is usually relatively long (for example, a few seconds to a few minutes).
In the period T 1 , the receiving circuit is operated for a short time τ, and the period T
Intermittent reception of 1 is being performed (see Fig. 4).

【0004】受信回路3が動作している短時間τの間に
受信信号(受信電波)があれば、間欠受信を止めて常時
受信状態となり、通信を開始する。そして、通信終了後
は再び周期T1 で間欠受信を行なう。従って受信回路の
平均消費電流は常時受信待機方式のτ/T1 となり、具
体的には数百〜数千分の1に減らすことができ、小さな
電池でも長時間使うことができる。
If there is a received signal (received radio wave) during a short time τ during which the receiving circuit 3 is operating, the intermittent reception is stopped and the receiving state is constantly changed to start communication. After the communication is completed, the intermittent reception is performed again in the cycle T 1 . Therefore, the average current consumption of the receiving circuit is τ / T 1 of the constant reception standby method, and specifically, it can be reduced to several hundreds to several thousandths, and a small battery can be used for a long time.

【0005】(2).受信側のユニットに時計機能を持
たせて、データ受信時(データ伝送時)以外は電源を遮
断する常時通信方式。
(2). A continuous communication method in which the unit on the receiving side has a clock function and the power is cut off except when receiving data (when transmitting data).

【0006】[0006]

【発明が解決しようとする課題】水道メータや、ガスメ
ータや積算電力計等の無線検針システムでは、システム
設置時やメンテナンス時、又は、例えば水道の無線検針
システムで漏水の疑いが発生した時等には、任意の時刻
にきめ細かく検針データを収集したいという要求があ
る。即ち、このような時には「いつでも通信(検針)で
きる」という検針の随時性が求められる。
In a wireless meter reading system such as a water meter, a gas meter or an integrated electricity meter, when the system is installed or maintained, or when a suspicion of water leak occurs in the wireless meter reading system of water, for example. Have a demand to collect detailed meter reading data at an arbitrary time. That is, in such a case, the occasional meter reading is required that “communication (meter reading) is possible at any time”.

【0007】ところが、前記従来技術の間欠受信方式で
は、検針の随時性を良くするためには、間欠受信の周期
1 を数秒以下にする必要があり、これでは消費電力が
それ程削減されないため、大きな電池が必要であるとい
う問題点があった。
However, in the above-mentioned prior art intermittent reception method, in order to improve the punctuality of meter reading, the intermittent reception cycle T 1 must be set to several seconds or less, which does not reduce the power consumption so much. There is a problem that a large battery is required.

【0008】また、間欠受信方式では、頻繁に通信を行
なおうとしても、通信開始までに最大T1 の待ち時間が
発生してしまうという問題点もあって検針の随時性に欠
ける。
Further, in the intermittent reception method, even if frequent communication is attempted, there is a problem that a waiting time of maximum T 1 occurs before the start of communication, so that meter reading is lacking in timeliness.

【0009】又、定時通信方式では、消費電力は大巾に
低減されるものの、決められた時刻又はタイミング以外
の時に通信できないため、システム設置時やメンテナン
ス時の確認作業に時間がかかり、検針の随時性に難点が
あるという問題点があった。
Further, in the regular communication system, although the power consumption is greatly reduced, it is impossible to communicate at times other than the predetermined time or timing, so it takes time to confirm the system installation and maintenance, and the meter reading There was a problem that there was a difficulty in the occasionality.

【0010】更に又、定時通信方式では、タイミングを
正確に合わせることも、無線機が持っている時計体の精
度の限界から容易ではないという問題点があった。この
ように、前記従来の技術では受信回路の低消費電力化と
検針の随時性を両立させることが困難であった。
Further, in the regular communication system, there is a problem that it is not easy to accurately adjust the timing because of the limit of the accuracy of the timepiece body of the wireless device. As described above, it is difficult for the above-described conventional technique to achieve both low power consumption of the receiving circuit and the timeliness of meter reading.

【0011】そこで、本発明は受信回路の低消費電力化
と検針の随時性を両立させることができる無線検針シス
テムを提供することを目的とする。
SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a wireless meter reading system capable of achieving both low power consumption of a receiving circuit and occasional meter reading.

【0012】[0012]

【課題を解決するための手段】前記目的を達成するため
に、請求項1の無線検針システムは、需要家に設置した
メータ(1)に接続されて、メータのデータを無線信号
で伝送する間欠受信方式の第1の無線機(2)と、検針
端末器(8)側に接続されて前記メータ(1)のデータ
を読み取る第2の無線機(9)とで互に通信を行なう検
針システムにおいて、第1の無線機(2)の間欠受信の
周期を第2の無線機(9)から任意の値に設定・変更す
ることを特徴とする。
In order to achieve the above object, a wireless meter reading system according to claim 1 is connected to a meter (1) installed in a customer, and intermittently transmits data of the meter by a wireless signal. A meter reading system in which a first wireless device (2) of a receiving system and a second wireless device (9) which is connected to the meter reading terminal (8) side and reads the data of the meter (1) communicate with each other. In the above, the intermittent reception cycle of the first wireless device (2) is set and changed to an arbitrary value from the second wireless device (9).

【0013】そして請求項2の無線検針システムは、公
衆電話回線を利用し双方向通信によりメータの自動検針
を行なう検針システムにおいて、メータ(1)のデータ
を無線信号で伝送する間欠受信方式の第1の無線機
(2)をメータ(1)に接続し、電話回線の端末用網制
御装置(8A)側に第2の無線機(9A)を接続して、
第1の無線機(2)の間欠受信の周期を第2の無線機
(9A)から任意の値に設定・変更することを特徴とす
る。
According to a second aspect of the present invention, there is provided a wireless meter reading system in which meter reading is automatically performed by bidirectional communication using a public telephone line. Connect the wireless device (2) of No. 1 to the meter (1), connect the second wireless device (9A) to the terminal network control device (8A) side of the telephone line,
The intermittent reception cycle of the first wireless device (2) is set and changed to an arbitrary value from the second wireless device (9A).

【0014】[0014]

【作用】メータ(1)に付設された第1の無線機(2)
は、消費電力削減のため通常比較的長い数拾秒〜数分間
の周期で間欠受信動作をしている。検針するには、この
間欠受信の時期に合わせてメータ(1)に起動をかけて
やればよい。
[Operation] A first radio (2) attached to the meter (1)
In order to reduce power consumption, normally, the intermittent reception operation is performed at a relatively long cycle of several seconds to several minutes. For meter reading, the meter (1) may be activated at the time of this intermittent reception.

【0015】そして、システムの設置時やメンテナンス
時等のように頻繁に通信をしたい時には、第1の無線機
(2)の間欠受信の時期に合わせて先ず最初の通信を行
ない、その時に第2の無線機(9,9A)から第1の無
線機(2)の間欠受信周期を短かくするように変更命令
を出す。
When it is desired to communicate frequently, such as during system installation or maintenance, the first communication is performed according to the intermittent reception time of the first wireless device (2), and then the second communication is performed. Change command is issued from the wireless device (9, 9A) to shorten the intermittent reception cycle of the first wireless device (2).

【0016】それ以後、第1の無線機(2)は変更され
た短かい周期で間欠受信するため、実質的に常時受信の
場合と同様に随時に通信が可能となる。所定のデータ収
集等の作業が終了したら、第2の無線機(9,9A)か
ら、第1の無線機(2)へ間欠受信周期を元の周期へ戻
す命令を送り、これを受けた第1の無線機(2)は、間
欠受信の周期を長い値に戻し、低消費電力動作に移行す
る。
After that, the first radio device (2) receives intermittently at a changed short cycle, and therefore communication can be performed at any time as in the case of substantially constant reception. When the work such as the predetermined data collection is completed, the second wireless device (9, 9A) sends a command to the first wireless device (2) to restore the intermittent reception cycle to the original cycle, and the second command is received. The wireless device (1) of No. 1 returns the intermittent reception cycle to a long value and shifts to the low power consumption operation.

【0017】[0017]

【実施例】次に図1に示す本発明の第1実施例について
説明する。同図において、1は水道メータ或いはガスメ
ータ等のメータで、水道或いはガスを使用する需要家の
所定の場所に配置されている。2はメータ1に接続され
た第1の無線機である。
EXAMPLE A first example of the present invention shown in FIG. 1 will be described below. In the figure, 1 is a meter such as a water meter or a gas meter, which is arranged at a predetermined place of a consumer who uses water or gas. Reference numeral 2 is a first wireless device connected to the meter 1.

【0018】メータ側無線機である第1の無線機2は、
メータ1に有線で接続されたメータ検針回路3と、制御
回路4と、受信回路5と、送信回路6とアンテナ7とか
ら構成されている。
The first radio 2, which is a meter-side radio,
The meter reading circuit 3 is connected to the meter 1 by wire, a control circuit 4, a receiving circuit 5, a transmitting circuit 6 and an antenna 7.

【0019】メータ検針回路3は、メータ1で計測した
流量積算値や、メータの個有番号(ID)等のデータを
検出するものである。制御回路4は前記間欠受信の周期
を記憶していて、その周期に応じて間欠的に受信回路5
の電源の入(ON)、切(OFF)等を制御する。また
制御回路4は前記のデータを送信する信号形態に変換し
たり、送信回路6の電源の入、切等も制御する。
The meter meter reading circuit 3 detects data such as the flow rate integrated value measured by the meter 1 and the unique number (ID) of the meter. The control circuit 4 stores the intermittent reception cycle, and intermittently receives the reception circuit 5 according to the cycle.
Controls power on (ON), power off (OFF), and so on. The control circuit 4 also converts the above-mentioned data into a signal format for transmission, and controls the power on / off of the transmission circuit 6.

【0020】送信回路6は、メータ1からのデータを制
御回路4で送信する信号形態に変換したもので変調した
電波形態の無線信号をアンテナ7から送信する。8はい
わゆるハンディターミナルと呼ばれる検針端末器で、該
検針端末器8には、第2の無線機9が有線で接続されて
いる。
The transmitting circuit 6 transmits from the antenna 7 a radio signal in the form of a radio wave which is modulated by converting the data from the meter 1 into a signal form to be transmitted by the control circuit 4. A meter reading terminal 8 is a so-called handy terminal, and a second wireless device 9 is connected to the meter reading terminal 8 by wire.

【0021】10は第2の無線機9に設けた送受用のア
ンテナ、11は受信回路、12は送信回路、13は制御
回路、14は通信回路で、アンテナ10〜通信回路14
で第2の無線機9を構成している。
Reference numeral 10 is a transmitting / receiving antenna provided in the second radio device 9, 11 is a receiving circuit, 12 is a transmitting circuit, 13 is a control circuit, 14 is a communication circuit, and the antenna 10 to the communication circuit 14 are provided.
And constitutes the second radio device 9.

【0022】送信回路12はアンテナ10を介して第2
の無線機9からの電波を第1の無線機2へ送信する。ま
た受信回路11はアンテナ10を介して上記第1の無線
機2からの電波を受信するようになっている。
The transmitting circuit 12 receives the second signal via the antenna 10.
The radio wave from the wireless device 9 is transmitted to the first wireless device 2. Further, the receiving circuit 11 receives the radio wave from the first wireless device 2 via the antenna 10.

【0023】制御回路13は上記受信回路11により受
信した信号を復調して元のデータに変換して、通信回路
14を介して検針端末器8へ伝送したり、検針端末器8
の指令に基いて受信回路11や送信回路12の電源を
入、切する等の制御をするものである。
The control circuit 13 demodulates the signal received by the receiving circuit 11 and converts it to the original data, and transmits it to the meter-reading terminal 8 via the communication circuit 14 or the meter-reading terminal 8.
Based on this command, the power of the receiving circuit 11 and the transmitting circuit 12 is turned on and off.

【0024】通信回路14は第2の無線機9と検針端末
器8との通信を行なう機能を有する。次に上記図1の実
施例について、第1の無線機2と第2の無線機9とのデ
ータ伝送動作のタイミングを図2に基いて説明する。
The communication circuit 14 has a function of communicating between the second radio 9 and the meter-reading terminal 8. Next, regarding the embodiment of FIG. 1, the timing of the data transmission operation between the first wireless device 2 and the second wireless device 9 will be described with reference to FIG.

【0025】メータ側に付設された第1の無線機2は、
通常長い周期T1 の間隔で間欠受信状態にある。つま
り、第1の無線機2の受信部である受信回路5は周期T
1 で短時間ずつ間欠的に作動している。この期間を図2
に符号Aで示す。
The first radio 2 attached to the meter side is
Normally, the intermittent reception is performed at intervals of a long cycle T 1 . That is, the receiving circuit 5 which is the receiving unit of the first wireless device 2 has the cycle T
It is operating intermittently for a short time at 1 . This period is shown in Figure 2.
Is indicated by the symbol A.

【0026】この状態での平均消費電力は非常に小さ
い。また周期T1 も通常の検針業務には差し障りのない
程度の時間に選んであり、この間欠受信のタイミングに
合うように第2の無線機9の送信回路(図2では送信部
の表現している)12を作動させて、起動信号を送信し
て通信を開始し、検針データ要求などの情報D1 を送信
する。
The average power consumption in this state is very small. Further, the cycle T 1 is also selected at a time that does not hinder normal meter reading work, and the transmission circuit of the second wireless device 9 (expressed as the transmission unit in FIG. 2 is represented so as to match the timing of this intermittent reception. 12) is operated to transmit a start signal to start communication, and information D 1 such as a meter reading data request is transmitted.

【0027】メータ設置時やメンテナンス時、又は水道
の水漏れの疑い等で水使用のきめ細かい流量データの調
査・収集が必要なときは、情報D1 に間欠受信の周期T
1 を短かい周期T2 に変更する周期変更要求を入れて送
信する。
When it is necessary to investigate and collect fine flow rate data for water use at the time of installing a meter, performing maintenance, or suspecting water leaks in the water supply, information D 1 indicates the intermittent reception cycle T.
A cycle change request for changing 1 to a short cycle T 2 is inserted and transmitted.

【0028】すると、第1の無線機2はこの情報D1
受信し、検針データ等のデータD1′を送信する。ま
た、前記第2の無線機9からの周期変更要求を受けた第
1の無線機2は、周期をT1 からT2 へ変更し、変更が
完了した旨を第2の無線機9側へ応答(データD1 ′)
し、これ以後は変更された短かい周期T2 で間欠受信を
行なう。
Then, the first radio 2 receives this information D 1 and transmits data D 1 ′ such as meter reading data. Further, the first wireless device 2 that has received the cycle change request from the second wireless device 9 changes the cycle from T 1 to T 2 and notifies the second wireless device 9 side that the change is completed. Response (data D 1 ′)
However, after that, the intermittent reception is performed at the changed short cycle T 2 .

【0029】周期T2 はそれまでの周期T1 に比較して
非常に短かく、検針端末器8側の第2の無線機9からの
データ要求がいつあっても、すばやく応答できる時間に
選んでおく。
The cycle T 2 is much shorter than the cycles T 1 up to that time, and is selected to be a time at which a quick response can be made regardless of a data request from the second radio 9 on the side of the meter-reading terminal 8. Leave.

【0030】このように間欠受信の周期が短かい周期T
2 に変更された期間を図2に符号Bで示す。この期間B
の間は随時、任意のデータ通信を行なうことができ、細
かい流量データの調査・収集作業を、第1の無線機2の
受信タイミングを気にすることなく行なえる。従って、
流量データの調査・収集作業の作業時間を短縮できる。
As described above, the period T in which the intermittent reception period is short is
The period changed to 2 is indicated by the symbol B in FIG. This period B
During this period, arbitrary data communication can be performed at any time, and fine flow rate data investigation / collection work can be performed without having to worry about the reception timing of the first wireless device 2. Therefore,
It is possible to shorten the work time for surveying and collecting flow rate data.

【0031】作業が終了したら、再び第2の無線機9か
ら第1の無線機2へ受信周期変更命令を出して周期をT
2 から元の周期T1 へ戻す要求を行なう(図2の情報D
3 )。
When the work is completed, the second radio 9 issues a reception cycle change command to the first radio 2 again to set the cycle to T.
A request for returning from 2 to the original cycle T 1 is made (information D in FIG. 2).
3 ).

【0032】周期変更要求を受けた第1の無線機2は、
周期をT2 から元の周期T1 へ戻し、変更が完了した旨
を検針端末器側の第2の無線機9へ情報D3 ′として応
答し、これ以後は通常の周期T1 で第1の無線機2が間
欠受信を行なう。この期間を図2で符号Cで示す。
The first radio 2 which receives the cycle change request,
The period back from T 2 to the original period T 1, in response as the information D 3 'to the effect that changes are complete to the second radio 9 meter reading terminal-side, which thereafter first a normal period T 1 The wireless device 2 performs intermittent reception. This period is indicated by symbol C in FIG.

【0033】図3は本発明の第2実施例で、8Aは電話
回線に接続された端末用網制御装置(T−NCU)、9
Aは端末用網制御装置8Aに有線で接続した第2の無線
機としてのT−NCU側無線機、10はそのアンテナで
ある。なお、第2の無線機9Aは、図1で説明した前記
第1実施例の第1の無線機9と同様の構成を備えてい
る。
FIG. 3 shows a second embodiment of the present invention, in which 8A is a terminal network control unit (T-NCU) connected to a telephone line, and 9 is a terminal network control unit.
A is a T-NCU side wireless device as a second wireless device connected to the terminal network control device 8A by wire, and 10 is its antenna. The second wireless device 9A has the same configuration as the first wireless device 9 of the first embodiment described with reference to FIG.

【0034】この第2実施例は、公衆電話回線を介して
メータの自動検針を行なう点が、第1実施例の場合の検
針端末器8により検針する場合と違うが、第1と第2の
無線機の間が無線通信で接続され、第1の無線機の間欠
受信周期を第2の無線機からの指令で設定・変更する点
は全く同様であるので、その作用説明の詳細は省略す
る。
The second embodiment is different from the first embodiment in that the meter reading is performed by the meter reading terminal device 8 in that the meter is automatically read through the public telephone line. Since the wireless devices are connected by wireless communication and the intermittent reception cycle of the first wireless device is set / changed by a command from the second wireless device, the details of the operation explanation are omitted. .

【0035】[0035]

【発明の効果】本発明の無線検針システムは上述のよう
に構成されているので、間欠受信の周期を任意に変更で
きるため、通常は比較的長い周期で間欠受信して受信回
路の平均消費電力を低減し、必要な時のみ間欠受信の周
期を短かくして検針の随時性を高めることができる。
Since the wireless meter reading system of the present invention is configured as described above, the intermittent reception cycle can be arbitrarily changed. Therefore, normally, the intermittent reception is performed in a relatively long cycle and the average power consumption of the receiving circuit is increased. Can be reduced, and the intermittent reception cycle can be shortened only when necessary to improve the punctuality of meter reading.

【0036】このように、低消費電力動作と検針の随時
性を両立させることが可能であるから、小さな容量の電
池で無線システムを構築できるとともに、システム設置
時やメンテナンス時の作業時間が短縮でき、作業効率が
向上する。
As described above, since it is possible to achieve both low power consumption operation and timeliness of meter reading, it is possible to construct a wireless system with a battery having a small capacity, and it is possible to shorten the work time during system installation and maintenance. , Work efficiency is improved.

【0037】また、水道メータの検針システムに本発明
を適用すると、漏水の疑いが発生して細かい流量調査デ
ータを収集する場合に、間欠受信の周期を短かい値に遠
隔的に変更することで、実質的に任意の時刻に通信がで
きるため、無線システムということを意識せずに、詳細
な調査データの収集が短時間で可能となる。
Further, when the present invention is applied to the meter reading system of a water meter, when the suspicion of water leakage occurs and fine flow rate survey data is collected, the intermittent reception cycle can be remotely changed to a short value. Since it is possible to communicate at virtually any time, detailed survey data can be collected in a short time without being aware of a wireless system.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の第1実施例のブロック図。FIG. 1 is a block diagram of a first embodiment of the present invention.

【図2】図1の実施例における信号の送受信関係のタイ
ミングを説明する図。
FIG. 2 is a diagram for explaining timing of signal transmission / reception in the embodiment of FIG.

【図3】本発明の第2実施例のブロック図。FIG. 3 is a block diagram of a second embodiment of the present invention.

【図4】従来技術の間欠受信方式のタイミングを説明す
る図。
FIG. 4 is a diagram for explaining the timing of a prior art discontinuous reception system.

【符号の説明】[Explanation of symbols]

1 メータ 2 第1の無線機 8 検針端末器 8A 端末用網制御装置 9,9A 第2の無線機 1 meter 2 first radio 8 meter-reading terminal 8A terminal network controller 9, 9A second radio

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 需要家に設置したメータ(1)に接続さ
れて、メータのデータを無線信号で伝送する間欠受信方
式の第1の無線機(2)と、検針端末器(8)側に接続
されて前記メータ(1)のデータを読み取る第2の無線
機(9)とで互に通信を行なう検針システムにおいて、 第1の無線機(2)の間欠受信の周期を第2の無線機
(9)から任意の値に設定・変更することを特徴とする
無線検針システム。
1. A first wireless device (2) of an intermittent reception system which is connected to a meter (1) installed in a customer and transmits meter data by a wireless signal, and a meter reading terminal (8) side. In a meter reading system that is connected to and communicates with a second wireless device (9) that reads data from the meter (1), the intermittent reception cycle of the first wireless device (2) is set to the second wireless device. A wireless meter reading system characterized by setting / changing an arbitrary value from (9).
【請求項2】 公衆電話回線を利用し双方向通信により
メータの自動検針を行なう検針システムにおいて、 メータ(1)のデータを無線信号で伝送する間欠受信方
式の第1の無線機(2)をメータ(1)に接続し、電話
回線の端末用網制御装置(8A)側に第2の無線機(9
A)を接続して、 第1の無線機(2)の間欠受信の周期を第2の無線機
(9A)から任意の値に設定・変更することを特徴とす
る無線検針システム。
2. A meter-reading system for automatically meter-reading by means of two-way communication using a public telephone line, wherein a first radio device (2) of an intermittent reception system for transmitting data of the meter (1) by a radio signal is provided. The second radio (9) is connected to the terminal network control device (8A) of the telephone line connected to the meter (1).
A wireless meter reading system characterized by connecting A) and setting / changing the intermittent reception cycle of the first wireless device (2) from the second wireless device (9A) to an arbitrary value.
JP20202494A 1994-08-26 1994-08-26 Radio meter inspection system Pending JPH0870488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20202494A JPH0870488A (en) 1994-08-26 1994-08-26 Radio meter inspection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20202494A JPH0870488A (en) 1994-08-26 1994-08-26 Radio meter inspection system

Publications (1)

Publication Number Publication Date
JPH0870488A true JPH0870488A (en) 1996-03-12

Family

ID=16450666

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20202494A Pending JPH0870488A (en) 1994-08-26 1994-08-26 Radio meter inspection system

Country Status (1)

Country Link
JP (1) JPH0870488A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001167375A (en) * 1999-12-13 2001-06-22 Ricoh Elemex Corp Radio meter-reading system
JP2008263359A (en) * 2007-04-11 2008-10-30 Tokyo Electric Power Co Inc:The Communicating system
JP2009027315A (en) * 2007-07-18 2009-02-05 Yokogawa Electric Corp Wireless control system
JP2012123714A (en) * 2010-12-10 2012-06-28 Panasonic Corp Wireless sensor system
US8223681B2 (en) 2008-07-03 2012-07-17 Fujitsu Limited Base station, mobile station, and method for wideband wireless access system
KR101526899B1 (en) * 2013-09-30 2015-06-09 한국전력공사 Apparatus and method for scheduling periodic meter using power usage and load characteristics
JP2019022090A (en) * 2017-07-18 2019-02-07 Smk株式会社 Sensor device
KR102272643B1 (en) * 2020-04-14 2021-07-05 주식회사 라디언트 Digital meter that can adjust the transmission period of weighing value data and operating method thereof
JP7003330B1 (en) * 2020-03-31 2022-01-20 三菱電機株式会社 Communication terminals, communication systems, power saving control methods and power saving control programs

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001167375A (en) * 1999-12-13 2001-06-22 Ricoh Elemex Corp Radio meter-reading system
JP2008263359A (en) * 2007-04-11 2008-10-30 Tokyo Electric Power Co Inc:The Communicating system
JP2009027315A (en) * 2007-07-18 2009-02-05 Yokogawa Electric Corp Wireless control system
US8223681B2 (en) 2008-07-03 2012-07-17 Fujitsu Limited Base station, mobile station, and method for wideband wireless access system
JP2012123714A (en) * 2010-12-10 2012-06-28 Panasonic Corp Wireless sensor system
KR101526899B1 (en) * 2013-09-30 2015-06-09 한국전력공사 Apparatus and method for scheduling periodic meter using power usage and load characteristics
JP2019022090A (en) * 2017-07-18 2019-02-07 Smk株式会社 Sensor device
JP7003330B1 (en) * 2020-03-31 2022-01-20 三菱電機株式会社 Communication terminals, communication systems, power saving control methods and power saving control programs
TWI775367B (en) * 2020-03-31 2022-08-21 日商三菱電機股份有限公司 Communication terminal, communication system, power -saving control method and recording medium
KR102272643B1 (en) * 2020-04-14 2021-07-05 주식회사 라디언트 Digital meter that can adjust the transmission period of weighing value data and operating method thereof

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