【０００１】[0001]
【発明の属する技術分野】本発明は水道、ガス等のメー
タの無線検針システムの改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a wireless meter reading system for meters such as water and gas.
【０００２】[0002]
【従来の技術】水道、ガス、電気等のメータの無線検針
システムでは、無線子局の受信待機時の無用な電力消費
を低減する必要がある。2. Description of the Related Art In a wireless meter reading system for a meter of water, gas, electricity or the like, it is necessary to reduce unnecessary power consumption when a wireless slave station waits for reception.
【０００３】従来、無線通信において消費電流を少なく
するため、間欠的に受信動作を行い、受信動作の間に同
期補足を行い、通信相手を認識する識別符号の受信を行
う必要があった。同期補足用の同期信号は最低１０数ビ
ット、識別符号の１０数ビットと併せて３０ビットの信
号を受信し処理する必要があり、処理時間に応じた電流
消費があるので、処理時間を短縮するため受信するビッ
ト数を減らすことが要求されている。かかる要望に応え
る無線検針システムとして、特開平１１―１７７５６４
号が提案されている。Conventionally, in order to reduce current consumption in wireless communication, it has been necessary to perform a receiving operation intermittently, perform synchronization supplementation during the receiving operation, and receive an identification code for recognizing a communication partner. It is necessary to receive and process a 30-bit signal in addition to the synchronization signal for supplementing the synchronization, which is at least tens of bits and the tens of bits of the identification code, and consumes current according to the processing time. Therefore, it is required to reduce the number of received bits. Japanese Patent Application Laid-Open No. 11-177564 discloses a wireless meter reading system that meets such demands.
No. has been proposed.
【０００４】この従来技術は、図３に示すように、メー
タ１に接続される無線子局（子機ともいう）２が間欠動
作を行いながら親局装置（親機ともいう）４の送信する
識別信号を認識することにより回線確立を行う信号認識
方式において、システム固有の周期信号を使用し、無線
子局２がこのシステム固有の周期信号を検出することに
より、自システム内の有意通信であるか否かを認識し、
システム固有の周期信号に後続する個別の識別符号を認
識することにより、自局に対する通信要求であるか否か
の認識を段階的に行うことにより、必要最小限の時間内
に回路の動作を限定するようにしている。３は検針者が
携帯する検針用端末装置で親局装置４は携帯端末装置３
に搭載されている。In this prior art, as shown in FIG. 3, a wireless slave station (also referred to as a slave) 2 connected to a meter 1 transmits data from a master station (also referred to as a master) 4 while performing an intermittent operation. In a signal recognition method for establishing a line by recognizing an identification signal, a periodic signal unique to the system is used, and the wireless slave station 2 detects the periodic signal unique to the system, thereby indicating significant communication within the own system. Or not,
Recognizes the individual identification code following the periodic signal unique to the system, and recognizes whether it is a communication request to the local station in a stepwise manner, thereby limiting the operation of the circuit within the minimum necessary time I am trying to do it. 3 is a terminal device for meter reading carried by the meter reader, and the master station device 4 is a portable terminal device 3
It is installed in.
【０００５】子局装置２は無線回路５、制御回路６、電
池７、ケース８及びアンテナ９により構成され、各メー
タには特定のアドレス番号が設定されている。[0005] The slave station device 2 comprises a radio circuit 5, a control circuit 6, a battery 7, a case 8 and an antenna 9, and a specific address number is set for each meter.
【０００６】子局装置２は図４（ａ）に示すように、休
止期間２ｓをおいて、１０ｍｓの短時間の間欠受信期間
１０を設けている。親局装置４は、子局装置２に対して
通信要求を行う際には同図（ｂ）のようにシステム識別
用周期信号１１に続いて個別選択用識別符号１２を送信
する。識別用周期信号は子局装置の間欠受信期間１０の
何れかで必ず受信されるように、前記休止期間を十分に
上回る長い時間（２ｓ＋０．０１ｓ×２）ｓに定められ
ている。[0006] As shown in FIG. 4A, the slave station device 2 is provided with a short intermittent reception period 10 of 10 ms with a pause period of 2 s. When making a communication request to the slave station device 2, the master station device 4 transmits an individual selection identification code 12 following the system identification periodic signal 11 as shown in FIG. The identification periodic signal is set to a long time (2 s + 0.01 s × 2) s sufficiently exceeding the pause period so that the identification periodic signal is always received in any of the intermittent reception periods 10 of the slave station device.
【０００７】子局装置２は３段階に分けて識別符号の認
識を行っている。第１の選択段階としては、親局装置が
送信する電波の有無の確認を行う。第２の選択段階とし
ては、システム固有の識別用周期信号を検出することに
より、自システム内の有意通信であるか否かの認識を行
う。第３の選択段階としては、システム固有の識別用周
期信号に後続する個別の識別符号を認識することによ
り、自局に対する通信要求であるか否かの認識を行う。[0007] The slave station device 2 recognizes the identification code in three stages. As a first selection step, the presence or absence of a radio wave transmitted by the master station device is confirmed. In the second selection step, whether or not the communication is significant within the own system is recognized by detecting a periodic signal for identification unique to the system. In the third selection step, whether or not the request is a communication request to the own station is recognized by recognizing an individual identification code following the identification signal unique to the system.
【０００８】第１の選択段階では、図４（ａ）に示す間
欠受信期間１０の間に受信動作を行い、所望の周波数の
電波の入力が確認できなかったときには、信号認識動作
は行わず、直ちに受信休止状態に戻るように制御され
る。電波の入力が確認できたときは、間欠受信期間１０
の間に出力される受信復調出力信号により、一定の期間
１０ｍｓの間に受信動作を行っても、親局装置４の送信
する起動用（システム識別用）の周期信号１１が確認で
きない場合には、自局に対する通信の要求は無いと判断
して２秒の休止期間に入る。In the first selection stage, a reception operation is performed during the intermittent reception period 10 shown in FIG. 4A, and when the input of a radio wave of a desired frequency cannot be confirmed, the signal recognition operation is not performed. It is controlled so as to immediately return to the reception suspension state. When the radio wave input is confirmed, the intermittent reception period 10
If the periodic signal 11 for start-up (for system identification) transmitted by the master station device 4 cannot be confirmed even if the receiving operation is performed for a fixed period of 10 ms by the reception demodulation output signal output during Then, it is determined that there is no communication request to the own station, and the apparatus enters a 2-second pause period.
【０００９】間欠受信動作１０ｍｓの間に受信動作を行
った結果、親局装置４の送信する周期信号１１が確認で
きた場合には、周期信号１１の周期を測定する第２の選
択段階に入る。周期の測定は７回（７周期）繰り返し、
有意信号であるかどうか７回の測定値から多数決判定を
行っている。システム識別用の周期信号のチェックの結
果、システムの周期でない場合には、自局に対する通信
要求ではないと判断し、通信を打ち切り通信休止状態に
入る。If the periodic signal 11 transmitted by the master station device 4 can be confirmed as a result of the receiving operation performed during the intermittent receiving operation 10 ms, a second selection stage for measuring the period of the periodic signal 11 is started. . Period measurement is repeated 7 times (7 periods)
A majority decision is made from the seven measured values to determine whether the signal is significant. As a result of checking the periodic signal for system identification, if it is not the cycle of the system, it is determined that the request is not a communication request to the own station, and the communication is terminated to enter a communication suspension state.
【００１０】以上の一連の動作により、システム識別用
周期信号は、判別の結果有意通信要求であることを認識
した場合には、子局装置２は第３の選択段階である個別
子局の識別動作に入る。この動作は図５のタイムチャー
トにおいて、子局装置２は個別子局の識別符号の識別動
作を行うため、図５の（ａ）に示す親局装置４から送信
されたデータ部１３の識別符号を受信する。例えば、子
局装置２は同図（ｂ）の♯１の間欠受信タイミング１４
で親局からの所要の周波数の電波を受信すると、識別通
信動作１５に入り、希望の周期信号を認識した場合には
有意信号と判断して、各子局識別符号の待ち受け動作１
６及び受信動作１７を行い、所定の手続きの後、相互通
信１８の動作に入る。When the system identification periodic signal is recognized as a significant communication request as a result of the determination by the above-described series of operations, the slave station device 2 determines the individual slave station in the third selection stage. Enter the operation. In this operation, in the time chart of FIG. 5, the slave station device 2 performs the operation of identifying the identification code of the individual slave station. Therefore, the identification code of the data section 13 transmitted from the master station device 4 shown in FIG. To receive. For example, the slave station device 2 performs the intermittent reception timing 14 of # 1 in FIG.
When receiving a radio wave of a required frequency from the master station, the process enters an identification communication operation 15. When a desired periodic signal is recognized, it is determined to be a significant signal, and a standby operation 1 for each slave station identification code is performed.
6 and receiving operation 17, and after a predetermined procedure, the operation of the mutual communication 18 is started.
【００１１】自局の通信を完了した子局は再度通信休止
状態に入る。又、識別符号を受信してチェックした結
果、子局装置２の識別符号でない場合には自局に対する
通信要求でないと判断し、通信を打ち切り、間欠待受け
動作状態に入る。The slave station that has completed its own communication enters the communication pause state again. Also, as a result of receiving and checking the identification code, if the identification code is not the identification code of the child station device 2, it is determined that the request is not a communication request to the own station, the communication is terminated, and the intermittent standby operation state is entered.
【００１２】なお、この従来技術では、個別選択用識別
符号１２等のデータ信号の伝送速度（ビット周期）は一
般的な１２００，２４００，４８００，９６００ビット
／秒などのシリアルコードの信号を用い、システム識別
用周期信号１１には一般的でない伝送速度（ビット周
期）の１４００ビット／秒（周期０．７１ｍｓ）を用い
て、前述のようにその周期を測定することで自システム
の信号であるかどうかを識別するようにしている。In this prior art, the transmission rate (bit period) of the data signal such as the individual selection identification code 12 is a general serial code signal such as 1200, 2400, 4800, or 9600 bits / sec. Using the unusual transmission rate (bit period) of 1400 bits / second (period 0.71 ms) as the system identification periodic signal 11 and measuring the period as described above, whether the signal is the signal of the own system. Try to identify whether.
【００１３】[0013]
【発明が解決しようとする課題】集合住宅では多数の住
戸が近接している。例えば１０階建ての建物で、各階に
１０戸ずつの住戸が配設されている集合住宅では、１棟
当り１００戸の住戸が近接配置されている。In an apartment house, many dwelling units are close to each other. For example, in a ten-story building, in a multi-family apartment in which ten dwelling units are arranged on each floor, 100 dwelling units are arranged adjacent to each other.
【００１４】従って、このような集合住宅の各住戸に前
記従来技術の子機装置を設置した場合、１つの子機を呼
び出すために親機から前記図４（ｂ）、図５（ａ）に示
す信号を送信すると、その信号中のシステム識別用周期
信号を近くの他の住戸の子機が受信して、これら他の子
機がシステム識別用周期信号に続く個別選択用識別符号
１２を判別するまで受信動作を継続する。このように近
くの不必要な子機の受信動作を継続させるのは無線を使
うため電波の届く数十メートルの範囲の子機が親機の電
波を受信できるためである。そのため、集合住宅の子機
は近くの子機の検針時にいつも不必要な受信動作を継続
することになる。Therefore, when the above-mentioned prior art slave unit is installed in each dwelling unit of such an apartment house, the master unit calls FIG. 4 (b) and FIG. 5 (a) to call one slave unit. When the signal indicating is transmitted, the slave unit of another nearby dwelling unit receives the periodic signal for system identification in the signal, and these other slave units determine the identification code 12 for individual selection following the periodic signal for system identification. The receiving operation is continued until the operation is completed. The reason why the unnecessary unnecessary handset nearby is continued to be received is that the handset within a range of several tens of meters to which the radio wave can reach can receive the radio wave of the base unit by using the radio. For this reason, the slave unit of the apartment house always continues an unnecessary reception operation at the time of meter reading of a nearby slave unit.
【００１５】しかも、前記従来の技術では、システム識
別用周期信号が２．０２ｓと長く継続し、その後に識別
符号１２が規定により定められている４８ビット続く。
４８ビットは２４０００ｂｐｓで２ｍｓになる。そのた
め前記不必要な子機の受信動作が最長の場合には約２．
０４ｓと長くなり、それらの子機の電池の消耗が問題と
なる。Moreover, in the conventional technique, the system identification periodic signal lasts as long as 2.02 s, and thereafter, the identification code 12 lasts for 48 bits as defined by the regulations.
48 bits becomes 2 ms at 24000 bps. Therefore, in the case where the unnecessary receiving operation of the unnecessary slave unit is the longest, about 2.
04s, which is a problem, and the battery consumption of those slave units is a problem.
【００１６】そして、その子機は、近くの住戸の子機が
親機に呼ばれる都度、システム識別用周期信号１１を継
続して受信し、更にその識別用周期信号１１に続く個別
選択用識別符号１２を受信し、それが自分を示すもので
ないと判断した段階でようやく電源オフとなるので、不
必要な電池の消費機会が何回も発生し、かつその受信動
作時間が長い。例えば３階の中央当りに位置する住戸の
子機は、３階の隣接する住戸の検針時に不必要な長い受
信時間を生じ、又、２階や１階、更に４階や５階の近い
各３戸ずつの住戸の子機の検針時にも、同様のことが生
じる。こうして、近くの１４戸の他住戸の検針の都度、
不必要な長い受信時間を生じてしまい、その分電池の消
費が多くなり、電池寿命が短くなるという問題点があ
る。そして電波の到達距離が大きいと、同時に受信する
子機の数は１４個よりも大幅に増加して、電池の消費が
より増大する。Each time a child unit in a nearby dwelling unit is called a parent unit, the child unit continuously receives the system identification periodic signal 11 and further receives the individual selection identification code 12 following the identification periodic signal 11. Is received, and the power is finally turned off when it is determined that it does not indicate oneself, so that unnecessary battery consumption opportunities occur many times and the receiving operation time is long. For example, a child unit of a dwelling unit located near the center of the third floor generates an unnecessary long reception time when reading a meter of an adjacent dwelling unit on the third floor. The same occurs when reading the handset of a child unit of three dwelling units. In this way, every time the nearby 14 other houses read the meter,
Unnecessarily long reception time is generated, and the consumption of the battery is increased by that amount, and the battery life is shortened. When the reach of the radio wave is large, the number of slave units that receive the signal at the same time is significantly increased from 14 and the battery consumption is further increased.
【００１７】そこで、本発明は、かかる問題点を解消で
きる無線検針システムを提供することを目的とする。Therefore, an object of the present invention is to provide a wireless meter reading system capable of solving such a problem.
【００１８】[0018]
【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の発明は、メータと無線子機との組み合わ
せを複数設け、これ等のメータを選択して検針する無線
親機を有する無線検針システムにおいて、無線親機から
通信したい無線子機を概略的に示す概略識別符号の連続
した複数回の繰り返しからなる起動信号を送信し、無線
子機は一定時間間隔で受信状態にして前記概略識別符号
を読み取り、自機のものの場合、続いて正規の識別符号
を読み取り、親機側が通信したい子機であるかを判定
し、通信したい子機の場合にその子機のみが親機側に応
答信号を送信するもので、前記起動信号を構成する概略
識別符号は、始まりの部分を一意に検出可能とするビッ
トパターンによる頭部をもつことを特徴とする無線検針
システムである。In order to achieve the above object, according to the present invention, a plurality of combinations of a meter and a wireless slave unit are provided, and a wireless master unit for selecting these meters and reading a meter is provided. In the wireless meter reading system having, the wireless base unit transmits a start signal consisting of a plurality of successive repetitions of a schematic identification code schematically indicating a wireless slave unit to communicate with, and the wireless slave unit is set to a reception state at fixed time intervals. The general identification code is read, and in the case of the own device, the normal identification code is subsequently read, and it is determined whether or not the master device is the slave device with which communication is desired. The wireless identification system is characterized in that the general identification code constituting the start signal has a head by a bit pattern that enables the start portion to be uniquely detected.
【００１９】無線子機は間欠的に短時間ずつ受信状態と
なって無線親機からの起動信号を受信する。このときの
受信期間は、概略識別符号の送信時間＋頭部送信時間＋
余裕時間となる。受信期間内に頭部が検出できない場
合、または検出できても概略識別符号が自機のものと一
致しない場合、その段階で電源をオフし、待機状態に戻
る。受信した起動信号中の概略識別符号が自機に対応す
るものであれば継続して受信を続け、親機からの通信し
たい子機を示す正規の識別符号を判読する。これが自分
の識別符号に合致したら起動応答をする。こうして通信
が開始される。もし、最初に起動信号中の概略識別符号
が一致しても、その後起動信号に続く正規の識別符号が
一致しない場合は、その段階で電源をオフして待機状態
に戻る。The wireless handset enters a receiving state intermittently for a short time and receives a start signal from the wireless master. The reception period at this time is: transmission time of the general identification code + head transmission time +
It will be time to spare. If the head cannot be detected during the reception period, or if the head identification does not match the own identification code, the power is turned off at that stage and the apparatus returns to the standby state. If the general identification code in the received activation signal corresponds to the own device, the reception is continued, and the normal identification code indicating the child device to communicate with from the master device is read. When this matches the identification code of the user, a start response is made. Thus, communication is started. If the general identification code in the start signal matches first, but the normal identification code following the start signal does not match thereafter, the power is turned off at that stage and the apparatus returns to the standby state.
【００２０】請求項２の発明は、請求項１の無線検針シ
ステムにおいて、概略識別符号の頭部を８ビットとし、
そのうちの少なくとも６ビットが連続する“１”又は
“０”からなるビット構成であることを特徴とするもの
である。According to a second aspect of the present invention, in the wireless metering system of the first aspect, the head of the general identification code is 8 bits,
It is characterized in that at least 6 bits have a bit configuration of continuous "1" or "0".
【００２１】請求項３の発明は、請求項１の無線検針シ
ステムにおいて、概略識別符号の頭部が、最初に“１”
が複数ビット連続し、その後に“０”をもつビット構成
であることを特徴とするものである。According to a third aspect of the present invention, in the wireless metering system according to the first aspect, the head of the general identification code is initially "1".
Is a bit configuration having a plurality of consecutive bits followed by “0”.
【００２２】請求項４の発明は、請求項１の無線検針シ
ステムにおいて、概略識別符号の頭部が、最初に“０”
が複数ビット連続し、その後に“１”をもつビット構成
であることを特徴とするものである。According to a fourth aspect of the present invention, in the wireless metering system of the first aspect, the head of the general identification code is initially set to "0".
Is a bit configuration having a plurality of consecutive bits followed by “1”.
【００２３】請求項５の発明は、請求項３又は４の無線
検針システムにおいて、連続する複数ビットの“０”又
は“１”の数が２ビットであることを特徴とするもので
ある。According to a fifth aspect of the present invention, in the wireless metering system according to the third or fourth aspect, the number of consecutive "0" or "1" of a plurality of bits is 2 bits.
【００２４】[0024]
【発明の実施の形態】次に本発明の好ましい実施の形態
を実施例に従って説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments of the present invention will be described with reference to examples.
【００２５】〔実施例１〕図１（ｂ）に示すように、親
機から送られる起動信号２１は通信する無線子機を概略
的に示す概略識別符号２０を一定回数繰り返したもの
で、起動信号の長さは同図（ａ）に示す子機側の間欠受
信の一定間隔をＴ、間欠受信期間をτとするとＴ＋２τ
より長い値に定めてある。[Embodiment 1] As shown in FIG. 1 (b), a start signal 21 sent from the master unit is obtained by repeating a general identification code 20 schematically indicating a wireless slave unit to communicate with by a predetermined number of times. The length of the signal is T + 2τ, where T is a fixed interval of intermittent reception on the slave side shown in FIG.
It is set to a longer value.
【００２６】こうすることで、子機がその間欠受信期間
τの何れかで起動信号２１中の何れかの概略識別符号２
０をミスすることなく受信できるようにしてある。同図
（ａ）の符号ａで示す時点では起動信号が無いため、一
定時間ｔａの間に概略識別符号の後記頭部が受信できな
いので自機への起動信号はないと判断し、子機は短時間
で電源オフとなる。一定時間ｔａは、頭部が確実に検出
できる時間（概略識別符号２０の送信時間＋頭部の送信
時間）とする。なお、この一定時間ｔａは、（後記信号
１９の送信時間＋頭部の送信時間×２）とあらわすこと
もできる。By doing so, the slave unit can detect any one of the general identification codes 2 in the activation signal 21 during any of the intermittent reception periods τ.
0 can be received without miss. Since there is no start signal at the time point indicated by reference numeral a in FIG. 9A, it is determined that there is no start signal to the own device because the posterior head of the general identification code cannot be received during the predetermined time ta, and the slave device determines The power turns off in a short time. The certain time ta is a time during which the head can be reliably detected (transmission time of the approximate identification code 20 + transmission time of the head). The fixed time ta can be expressed as (transmission time of signal 19 described later + transmission time of head × 2).
【００２７】符号ｂで示す時点では、一定時間ｔａの間
に頭部を検出し、それに続くビットパターンを読み取
り、自機のものと判断し、自機への起動信号ありと判断
する。仮に他機への起動信号であった場合、頭部を検出
した場合においてもそれに続くビットパターンが自機の
ものと異なるので、自機への起動信号は無いと判断し、
電源オフとなる。起動信号の検出の最初に、電波の有無
を検出し、電波がある場合にのみ上記の起動信号検出の
動作を行い、電波が無い場合には直ちに電源をオフする
ようにしてもよい。At the time point indicated by the symbol b, the head is detected for a predetermined time ta, the subsequent bit pattern is read, it is determined that it is the own device, and it is determined that there is a start signal to the own device. If it is a start signal to another machine, even if a head is detected, it is determined that there is no start signal to the own machine because the subsequent bit pattern is different from that of the own machine,
The power turns off. At the beginning of the detection of the activation signal, the presence or absence of a radio wave may be detected, the above-described operation of the activation signal detection may be performed only when there is a radio wave, and the power may be turned off immediately when there is no radio wave.
【００２８】通信する子機を概略的に示す概略識別符号
２０としては、その子機に接続されているメータの１０
進１４桁のＩＤ番号の下２桁の各桁の数字を４ビットの
２進数に変換した信号１９に概略識別符号の始めを示す
数ビットの頭部を付加したものを使っている。下２桁を
構成する１０進の０〜９の数字に対して図１（ｃ）のよ
うに４ビットの符号を対応させる。従って、子機に接続
されているメータのＩＤ番号の下２桁の１０進数が０１
であれば、それに対応する信号１９は“００１０００１
１”の８ビットの信号となる。又、接続されているメー
タのＩＤ番号の下２桁の１０進数が９９であれば、それ
に対応する信号１９は“１０１１１０１１”となる。The general identification code 20 schematically indicating a slave unit to communicate with is the 10 of a meter connected to the slave unit.
A signal 19 obtained by converting the lower two digits of a 14-digit ID number into a 4-bit binary number and adding a head of a few bits indicating the start of a general identification code is used. As shown in FIG. 1C, a 4-bit code is made to correspond to the decimal numbers 0 to 9 constituting the lower two digits. Therefore, the last two decimal digits of the ID number of the meter connected to the slave unit are 01.
, The corresponding signal 19 is “0010001”
The signal is an 8-bit signal of "1". If the lower two digits of the ID number of the connected meter are 99, the corresponding signal 19 is "10111011".
【００２９】そして、これらの信号１９の前に同図
（ｂ）のように概略識別符号２０の始めを示す頭部１８
を配置する。この頭部１８は概略識別符号２０の始まり
を確実に検出できるビットパターンの信号とする。即ち
この実施例では、８ビットの頭部１８とし、そのうち６
ビットが連続する“１”又は“０”からなるビット構成
の“０１１１１１１０”又は“１００００００１”とし
てある。こうすることで、１０進１４桁のＩＤ番号を２
進符号であらわした信号１９に付加した頭部１８によ
り、概略識別符号２０の始まりを確実に検出し、概略識
別符号２０の認識を容易かつ確実に行う。Then, before these signals 19, the head 18 indicating the beginning of the general identification code 20 as shown in FIG.
Place. The head 18 is a bit pattern signal that can reliably detect the start of the general identification code 20. That is, in this embodiment, an 8-bit head 18 is used.
The bits are “01111110” or “10000001” having a bit configuration consisting of consecutive “1” or “0”. By doing so, the decimal 14-digit ID number is changed to 2
The start of the general identification code 20 is reliably detected by the head 18 added to the signal 19 represented by a hexadecimal code, and recognition of the general identification code 20 is performed easily and reliably.
【００３０】こうすることで、同図（ｄ）の無線親機４
Ａから上記ビット構成の概略識別符号を一定回数繰り返
す起動信号２１を送信すると、それを受信した子機は先
ず頭部１８を短時間に判読して概略識別符号２０の始め
を確認し、それに続く信号１９を受信して、この概略識
別符号が自局のものかどうか、即ち自局に対する起動信
号であるか否かを判断して、自局の場合は図１（ａ）の
符号ｂの時点で起動信号ありとして、親機からの起動信
号に続く正規の識別符号を自局のものか否か判断する。
自局なら、この時点又は正規の識別符号２２に続く通信
電文２３を読み取り、同図（ａ）の符号ｃの時点で起動
応答して通信を開始する。具体的には、２４００ｂｐｓ
の通信速度の場合、子機を受信状態にして１６ビットの
概略識別符号２０を読み取るのに１６ビットに対応する
時間６．７ｍｓの２倍の１３ｍｓ以内で済むので、起動
信号が自局でない場合は最大でも１３ｍｓという短時間
で子機の電源をオフにして電池の消費を節約できる。実
際の電源オン時間には、無線子機が受信可能になるまで
の数ｍｓの時間が加算される。By doing so, the wireless master device 4 shown in FIG.
When a start signal 21 for repeating the general identification code of the above-mentioned bit configuration for a certain number of times is transmitted from A, the slave unit that has received it first reads the head 18 in a short time to confirm the beginning of the general identification code 20, and then Upon receiving the signal 19, it is determined whether or not the general identification code is that of the own station, that is, whether or not it is a start signal for the own station. Then, it is determined that a normal identification code following the start signal from the master unit is for the own station assuming that there is a start signal.
The local station reads the communication message 23 following the normal identification code 22 at this time or at the time point of the code c in FIG. Specifically, 2400 bps
In the case of the communication speed of, since the time required to read the 16-bit general identification code 20 with the slave unit in the receiving state is within 13 ms, which is twice the time of 6.7 ms corresponding to 16 bits, the start signal is not the own station. Saves battery power by turning off the power of the slave unit in a short time of at most 13 ms. To the actual power-on time, a time of several milliseconds until the wireless slave unit becomes capable of receiving is added.
【００３１】同図（ｄ）に示すように、５１と５２の子
機が近くにあって、親機４Ａから通信する子機を示す信
号として、５１を示す信号が送信された場合、子機５１
は先ず起動信号２１を受信して自局向けの信号であると
概略的に認識して、次の子機を示す正規の識別符号を継
続して受信し、自局に対する識別符号であると確実に判
定するが、子機５２は、子機を示す起動信号２１を受信
した時点でその概略識別符号２０を読み取って自局向け
の信号でないと認識して電源をオフにして節電する。従
って、子機５２は起動応答しない。As shown in FIG. 3D, when the slave units 51 and 52 are close to each other and the signal indicating 51 is transmitted as a signal indicating the slave unit to be communicated from the master unit 4A, 51
First receives the start signal 21 and roughly recognizes that the signal is directed to the own station, continuously receives a regular identification code indicating the next slave unit, and reliably determines that the identification code is for the own station. When receiving the activation signal 21 indicating the slave, the slave 52 reads the general identification code 20 and recognizes that the signal is not a signal intended for the own station, and turns off the power to save power. Therefore, the child device 52 does not respond to the activation.
【００３２】〔実施例２〕この実施例では、メータのＩ
Ｄ番号である１０進１４桁の数字を隣り合う２桁ずつ１
０進加算した結果の下２桁００〜９９を、表１のように
子機を示す９ビットの信号１９Ａに割り付ける。付加す
る頭部１８は何れも“１１０”としてある。なお、表１
の子機を示す９ビット信号１９Ａは、２進の９ビットの
数から、頭部と同一のビットパターン“１１０”を含む
ものを除いたものの中から選び出して定めたものであ
る。また、表１中の番号００〜９９は前記１０進加算し
た結果の下２行００〜９９に相当する。こうすること
で、子機の１０進１４桁のＩＤの代わりに表１のように
１０進２桁に変換した番号を２進符号に対応させること
でいわば短縮した概略識別符号２０を作成し、子機が自
局（自機）が呼ばれているかどうかを短時間で判定し、
その分電池の消費も低減している。[Embodiment 2] In this embodiment, the I
The 14-digit decimal number that is the D number is 1 for each two adjacent digits
The lower two digits 00 to 99 of the result of the 0-base addition are assigned to a 9-bit signal 19A indicating the slave unit as shown in Table 1. Each of the added heads 18 is "110". Table 1
The 9-bit signal 19A indicating the slave unit is determined by selecting from the binary 9-bit numbers excluding those containing the same bit pattern "110" as the head. The numbers 00 to 99 in Table 1 correspond to the lower two rows 00 to 99 as a result of the decimal addition. By doing so, a rough identification code 20 which is shortened by associating a number converted into two decimal digits with a binary code as shown in Table 1 instead of the 14-digit ID of the child device is created, The slave determines in a short time whether its own station (own machine) is called,
The battery consumption has been reduced accordingly.
【００３３】[0033]
【表１】[Table 1]
【００３４】表１では頭部が“１１０”であるが、
“１”と“０”を入れ換えて頭部を“００１”としても
良い。この場合、２進の９ビットの信号１９Ａは、すべ
て“０”と“１”を入れ換えるか、または頭部のビット
パターン“００１”が含まれないものの中から選び直
す。In Table 1, the head is "110".
The head may be set to “001” by exchanging “1” and “0”. In this case, for the binary 9-bit signal 19A, all “0” and “1” are exchanged, or the signal is selected again from a signal that does not include the head bit pattern “001”.
【００３５】図２は集合住宅におけるメータと無線子機
の配置例で、７階、８階及び９階の各住戸７１〜７８、
８１〜８８及び９１〜９９にそれぞれメータに接続した
無線子機が配列されており、これらの複数のメータを親
機４Ａで順に検針するものである。FIG. 2 shows an example of the arrangement of a meter and a wireless handset in an apartment house. Each of the dwelling units 71 to 78 on the seventh, eighth, and ninth floors,
Wireless slave units connected to the meters are arranged at 81 to 88 and 91 to 99, respectively, and the plurality of meters are sequentially read by the master unit 4A.
【００３６】なお、図２では、すべてのメータに無線子
機を接続して１つの無線親機で順に検針するようにした
が、一棟のうち大半のメータを従来から公知の集中検針
盤に有線で接続し、有線での接続が困難な住戸のメータ
にだけ無線子機を接続配設し、前記集中検針盤に接続し
た無線親機を用いて無線子機の無線検針を行うようにし
ても良い。In FIG. 2, the wireless slave units are connected to all the meters, and the meters are sequentially read by one wireless master unit. However, most of the meters in one building are connected to a conventionally known centralized meter reading board. Connected by wire, connect and arrange the wireless slave only to the meter of the dwelling unit that is difficult to connect by wire, and perform wireless meter reading of the wireless slave using the wireless master unit connected to the centralized meter reading board. Is also good.
【００３７】〔実施例３〕上記実施例２と３は集合住宅
を対象にした無線検針システムであるが、１戸建ての住
宅に設けたメータの無線検針に本発明のシステムを適用
することもできる。この場合、親機は携帯型としてもよ
いし、公衆電話回線に設けた検針用の端末装置Ｔ−ＮＣ
Ｕに無線親機を接続して検針センタの検針用コンピュー
タから公衆電話回線を介して無線親機を操作して自動検
針をするようにしてもよい。こうすることで、Ｔ−ＮＣ
Ｕとメータとの間を有線で接続するのが困難な設置場所
にあるメータの検針を無線通信路を介して容易に接続で
きる。[Embodiment 3] The above embodiments 2 and 3 are wireless meter reading systems for apartment houses, but the system of the present invention can also be applied to a wireless meter reading of a meter provided in a single-family house. . In this case, the base unit may be a portable type, or a meter reading terminal device T-NC provided on a public telephone line.
A wireless master unit may be connected to U, and the meter reading computer at the meter reading center may operate the wireless master unit via a public telephone line to perform automatic meter reading. By doing so, T-NC
Meter reading of a meter in an installation place where it is difficult to connect the U and the meter by wire can be easily connected via a wireless communication path.
【００３８】[0038]
【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、親機側が通信したい子機を概略
的に示す概略識別符号の伝送速度（ビット周期）を一般
的に用いられる伝送速度に定め、しかも概略識別符号の
ビット数を少なくできる。そして、頭部を検出すること
で概略識別符号の始まりを速やかに識別できる。Since the wireless metering system of the present invention is constructed as described above, the transmission speed (bit period) of the general identification code which schematically indicates the slave unit with which the master unit wants to communicate is generally used. The transmission speed is determined, and the number of bits of the general identification code can be reduced. By detecting the head, the beginning of the general identification code can be quickly identified.
【００３９】そのため、短時間で自局向けの信号である
かないか概略的な判定が可能であり、自局が呼ばれてい
ないときは、それを短時間で判定して受信動作を断って
電池の消費を低減できるため、特に集合住宅の検針シス
テムに適用すると効果的である。即ち、概略識別符号を
判別することで、自局であるか否かを相当に確かな確率
で判定できるため、実施例１，２では、１６ビット又は
１２ビットの信号の２倍の時間、１３ｍｓ又は１０ｍｓ
で自局でないと判別して電源をオフできる。因みに前記
従来の技術では、正規の識別符号を判定するまで自局か
どうかの判定ができないため、２秒以上不必要な受信を
行うことになる。Therefore, it is possible to roughly determine whether or not the signal is directed to the own station in a short time, and when the own station is not called, it is determined in a short time and the receiving operation is refused and the battery operation is stopped. This is particularly effective when applied to a meter reading system for apartment houses because it can reduce the consumption of waste. That is, by determining the general identification code, it is possible to determine whether or not the mobile station is the own station with a fairly certain probability. Or 10ms
Then, it is determined that it is not the own station, and the power can be turned off. By the way, in the above-mentioned conventional technique, it is not possible to determine whether or not the mobile station is the local station until a proper identification code is determined, so that unnecessary reception is performed for 2 seconds or more.
【００４０】なお、概略識別符号の伝送速度は一般的に
用いられている伝送速度によらなくてもよい。例えば概
略識別符号の伝送速度を３，４００ｂｐｓとし、通信の
伝送速度を一般的な２，４００ｂｐｓとしてもよい。概
略識別符号の伝送速度が速いほど無線子機の待ち受け時
の消費電流は削減できる。The transmission speed of the general identification code does not need to depend on a generally used transmission speed. For example, the transmission speed of the general identification code may be 3,400 bps, and the transmission speed of communication may be 2,400 bps. The higher the transmission speed of the general identification code, the lower the current consumption of the wireless slave device during standby.
【００４１】そして、請求項５の発明は頭部のビット数
が極めて少ないため、電力消費の低減効果がより期待で
きる。Since the number of bits at the head is very small, the effect of reducing power consumption can be expected.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の実施例１を説明する図で、（ａ）はタ
イミングチャート、（ｂ）は起動信号の構成を示す図、
（ｃ）は子機の番号に対応するビット信号を説明する
図、（ｄ）は実施例の概略図である。FIGS. 1A and 1B are diagrams illustrating a first embodiment of the present invention, in which FIG. 1A is a timing chart, FIG.
(C) is a diagram for explaining a bit signal corresponding to the slave unit number, and (d) is a schematic diagram of the embodiment.
【図２】本発明の実施例の集合住宅への適用例を説明す
る略図である。FIG. 2 is a schematic diagram illustrating an application example of an embodiment of the present invention to an apartment house.
【図３】従来技術の全体構成を示す図である。FIG. 3 is a diagram showing an entire configuration of a conventional technique.
【図４】従来技術のタイミングチャートである。FIG. 4 is a timing chart of the related art.
【図５】従来技術のタイミングチャートである。FIG. 5 is a timing chart of the related art.
Ｍ メータ ４Ａ 無線親機 １８ 頭部 ２０ 概略識別符号 ２１ 起動信号 ５１，５２ 無線子機 ７１〜７８，８１〜８８，９１〜９９ 住戸番号 M meter 4A Wireless base unit 18 Head 20 General identification code 21 Activation signal 51,52 Wireless slave unit 71-78,81-88,91-99 Unit number
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０４Ｑ 9/00 ３１１ Ｇ０８Ｃ 17/00 Ｚ ３４１ Ｈ０４Ｂ 7/26 Ｘ 9/14 Ｈ０４Ｌ 11/00 ３１０Ｂ Ｆターム(参考） 2F073 AA06 AA07 AA08 AB01 BB01 BC02 CC03 CC12 CD11 DD06 DE02 DE13 DE14 FF01 GG01 GG06 GG07 5K033 BA11 DA01 DA17 5K048 AA16 BA36 DB01 DC01 EA12 EA14 EA16 EB10 HA01 HA02 5K067 AA43 BB21 CC21 DD23 DD27 EE02 EE10 EE22 GG01Continued on the front page (51) Int.Cl.7 Identification symbol FI Theme coat II (reference) H04Q 9/00 311 G08C 17/00 Z 341 H04B 7/26 X 9/14 H04L 11/00 310B F term (reference) 2F073 AA06 AA07 AA08 AB01 BB01 BC02 CC03 CC12 CD11 DD06 DE02 DE13 DE14 FF01 GG01 GG06 GG07 5K033 BA11 DA01 DA17 5K048 AA16 BA36 DB01 DC01 EA12 EA14 EA16 EB10 HA01 HA02 5K067 AA43 BB21 CC21 DD23EE27 EE10
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000134778AJP3986236B2 (en) | 2000-05-08 | 2000-05-08 | Wireless meter reading system |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000134778AJP3986236B2 (en) | 2000-05-08 | 2000-05-08 | Wireless meter reading system |
| Publication Number | Publication Date |
|---|---|
| JP2001319284Atrue JP2001319284A (en) | 2001-11-16 |
| JP3986236B2 JP3986236B2 (en) | 2007-10-03 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000134778AExpired - LifetimeJP3986236B2 (en) | 2000-05-08 | 2000-05-08 | Wireless meter reading system |
| Country | Link |
|---|---|
| JP (1) | JP3986236B2 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7079810B2 (en) | 1997-02-14 | 2006-07-18 | Statsignal Ipc, Llc | System and method for communicating with a remote communication unit via the public switched telephone network (PSTN) |
| US7103511B2 (en) | 1998-10-14 | 2006-09-05 | Statsignal Ipc, Llc | Wireless communication networks for providing remote monitoring of devices |
| US7137550B1 (en) | 1997-02-14 | 2006-11-21 | Statsignal Ipc, Llc | Transmitter for accessing automated financial transaction machines |
| WO2007083728A1 (en)* | 2006-01-23 | 2007-07-26 | Sharp Kabushiki Kaisha | Base station device, mobile station device, mobile station identifier allocation method, program, and recording medium |
| US7263073B2 (en) | 1999-03-18 | 2007-08-28 | Statsignal Ipc, Llc | Systems and methods for enabling a mobile user to notify an automated monitoring system of an emergency situation |
| US7295128B2 (en) | 1998-06-22 | 2007-11-13 | Sipco, Llc | Smoke detection methods, devices, and systems |
| US7397907B2 (en) | 1997-02-14 | 2008-07-08 | Sipco, Llc | Multi-function general purpose transceiver |
| US7424527B2 (en) | 2001-10-30 | 2008-09-09 | Sipco, Llc | System and method for transmitting pollution information over an integrated wireless network |
| JP2008211574A (en)* | 2007-02-27 | 2008-09-11 | Matsushita Electric Ind Co Ltd | COMMUNICATION SYSTEM, BASE STATION AND TRANSMITTING / RECEIVING DEVICE USED FOR THE SAME, AND COMMUNICATION METHOD USED FOR THEM |
| US7480501B2 (en) | 2001-10-24 | 2009-01-20 | Statsignal Ipc, Llc | System and method for transmitting an emergency message over an integrated wireless network |
| WO2009051020A1 (en)* | 2007-10-17 | 2009-04-23 | Hochiki Corporation | Communication system |
| US7650425B2 (en) | 1999-03-18 | 2010-01-19 | Sipco, Llc | System and method for controlling communication between a host computer and communication devices associated with remote devices in an automated monitoring system |
| US7697492B2 (en) | 1998-06-22 | 2010-04-13 | Sipco, Llc | Systems and methods for monitoring and controlling remote devices |
| US7756086B2 (en) | 2004-03-03 | 2010-07-13 | Sipco, Llc | Method for communicating in dual-modes |
| US8000314B2 (en) | 1996-12-06 | 2011-08-16 | Ipco, Llc | Wireless network system and method for providing same |
| US8013732B2 (en) | 1998-06-22 | 2011-09-06 | Sipco, Llc | Systems and methods for monitoring and controlling remote devices |
| US8031650B2 (en) | 2004-03-03 | 2011-10-04 | Sipco, Llc | System and method for monitoring remote devices with a dual-mode wireless communication protocol |
| US8064412B2 (en) | 1998-06-22 | 2011-11-22 | Sipco, Llc | Systems and methods for monitoring conditions |
| US8410931B2 (en) | 1998-06-22 | 2013-04-02 | Sipco, Llc | Mobile inventory unit monitoring systems and methods |
| US8489063B2 (en) | 2001-10-24 | 2013-07-16 | Sipco, Llc | Systems and methods for providing emergency messages to a mobile device |
| WO2014046237A1 (en) | 2012-09-24 | 2014-03-27 | 積水化学工業株式会社 | Leakage detector, leakage detection method, and pipe network monitoring apparatus |
| US8787246B2 (en) | 2009-02-03 | 2014-07-22 | Ipco, Llc | Systems and methods for facilitating wireless network communication, satellite-based wireless network systems, and aircraft-based wireless network systems, and related methods |
| US9439126B2 (en) | 2005-01-25 | 2016-09-06 | Sipco, Llc | Wireless network protocol system and methods |
| JP2020532206A (en)* | 2017-08-23 | 2020-11-05 | ロシックス・インコーポレイテッド | Systems and methods for providing communication with improved network frame structure architectures within wireless sensor networks |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8233471B2 (en) | 1996-12-06 | 2012-07-31 | Ipco, Llc | Wireless network system and method for providing same |
| US8000314B2 (en) | 1996-12-06 | 2011-08-16 | Ipco, Llc | Wireless network system and method for providing same |
| US8982856B2 (en) | 1996-12-06 | 2015-03-17 | Ipco, Llc | Systems and methods for facilitating wireless network communication, satellite-based wireless network systems, and aircraft-based wireless network systems, and related methods |
| US7079810B2 (en) | 1997-02-14 | 2006-07-18 | Statsignal Ipc, Llc | System and method for communicating with a remote communication unit via the public switched telephone network (PSTN) |
| US8335304B2 (en) | 1997-02-14 | 2012-12-18 | Sipco, Llc | Multi-function general purpose transceivers and devices |
| US7137550B1 (en) | 1997-02-14 | 2006-11-21 | Statsignal Ipc, Llc | Transmitter for accessing automated financial transaction machines |
| US7397907B2 (en) | 1997-02-14 | 2008-07-08 | Sipco, Llc | Multi-function general purpose transceiver |
| US7697492B2 (en) | 1998-06-22 | 2010-04-13 | Sipco, Llc | Systems and methods for monitoring and controlling remote devices |
| US8013732B2 (en) | 1998-06-22 | 2011-09-06 | Sipco, Llc | Systems and methods for monitoring and controlling remote devices |
| US8964708B2 (en) | 1998-06-22 | 2015-02-24 | Sipco Llc | Systems and methods for monitoring and controlling remote devices |
| US9691263B2 (en) | 1998-06-22 | 2017-06-27 | Sipco, Llc | Systems and methods for monitoring conditions |
| US8410931B2 (en) | 1998-06-22 | 2013-04-02 | Sipco, Llc | Mobile inventory unit monitoring systems and methods |
| US9430936B2 (en) | 1998-06-22 | 2016-08-30 | Sipco Llc | Systems and methods for monitoring and controlling remote devices |
| US8223010B2 (en) | 1998-06-22 | 2012-07-17 | Sipco Llc | Systems and methods for monitoring vehicle parking |
| US7295128B2 (en) | 1998-06-22 | 2007-11-13 | Sipco, Llc | Smoke detection methods, devices, and systems |
| US8212667B2 (en) | 1998-06-22 | 2012-07-03 | Sipco, Llc | Automotive diagnostic data monitoring systems and methods |
| US9129497B2 (en) | 1998-06-22 | 2015-09-08 | Statsignal Systems, Inc. | Systems and methods for monitoring conditions |
| US9571582B2 (en) | 1998-06-22 | 2017-02-14 | Sipco, Llc | Systems and methods for monitoring and controlling remote devices |
| US8064412B2 (en) | 1998-06-22 | 2011-11-22 | Sipco, Llc | Systems and methods for monitoring conditions |
| US7103511B2 (en) | 1998-10-14 | 2006-09-05 | Statsignal Ipc, Llc | Wireless communication networks for providing remote monitoring of devices |
| US8924588B2 (en) | 1999-03-18 | 2014-12-30 | Sipco, Llc | Systems and methods for controlling communication between a host computer and communication devices |
| US7263073B2 (en) | 1999-03-18 | 2007-08-28 | Statsignal Ipc, Llc | Systems and methods for enabling a mobile user to notify an automated monitoring system of an emergency situation |
| US8924587B2 (en) | 1999-03-18 | 2014-12-30 | Sipco, Llc | Systems and methods for controlling communication between a host computer and communication devices |
| US7650425B2 (en) | 1999-03-18 | 2010-01-19 | Sipco, Llc | System and method for controlling communication between a host computer and communication devices associated with remote devices in an automated monitoring system |
| US8930571B2 (en) | 1999-03-18 | 2015-01-06 | Sipco, LLP | Systems and methods for controlling communication between a host computer and communication devices |
| US7480501B2 (en) | 2001-10-24 | 2009-01-20 | Statsignal Ipc, Llc | System and method for transmitting an emergency message over an integrated wireless network |
| US9282029B2 (en) | 2001-10-24 | 2016-03-08 | Sipco, Llc. | System and method for transmitting an emergency message over an integrated wireless network |
| US8489063B2 (en) | 2001-10-24 | 2013-07-16 | Sipco, Llc | Systems and methods for providing emergency messages to a mobile device |
| US8666357B2 (en) | 2001-10-24 | 2014-03-04 | Sipco, Llc | System and method for transmitting an emergency message over an integrated wireless network |
| US9615226B2 (en) | 2001-10-24 | 2017-04-04 | Sipco, Llc | System and method for transmitting an emergency message over an integrated wireless network |
| US10149129B2 (en) | 2001-10-24 | 2018-12-04 | Sipco, Llc | Systems and methods for providing emergency messages to a mobile device |
| US10687194B2 (en) | 2001-10-24 | 2020-06-16 | Sipco, Llc | Systems and methods for providing emergency messages to a mobile device |
| US9515691B2 (en) | 2001-10-30 | 2016-12-06 | Sipco, Llc. | System and method for transmitting pollution information over an integrated wireless network |
| US8171136B2 (en) | 2001-10-30 | 2012-05-01 | Sipco, Llc | System and method for transmitting pollution information over an integrated wireless network |
| US9111240B2 (en) | 2001-10-30 | 2015-08-18 | Sipco, Llc. | System and method for transmitting pollution information over an integrated wireless network |
| US7424527B2 (en) | 2001-10-30 | 2008-09-09 | Sipco, Llc | System and method for transmitting pollution information over an integrated wireless network |
| US7756086B2 (en) | 2004-03-03 | 2010-07-13 | Sipco, Llc | Method for communicating in dual-modes |
| US8446884B2 (en) | 2004-03-03 | 2013-05-21 | Sipco, Llc | Dual-mode communication devices, methods and systems |
| US8379564B2 (en) | 2004-03-03 | 2013-02-19 | Sipco, Llc | System and method for monitoring remote devices with a dual-mode wireless communication protocol |
| US8031650B2 (en) | 2004-03-03 | 2011-10-04 | Sipco, Llc | System and method for monitoring remote devices with a dual-mode wireless communication protocol |
| US9860820B2 (en) | 2005-01-25 | 2018-01-02 | Sipco, Llc | Wireless network protocol systems and methods |
| US11039371B2 (en) | 2005-01-25 | 2021-06-15 | Sipco, Llc | Wireless network protocol systems and methods |
| US9439126B2 (en) | 2005-01-25 | 2016-09-06 | Sipco, Llc | Wireless network protocol system and methods |
| US10356687B2 (en) | 2005-01-25 | 2019-07-16 | Sipco, Llc | Wireless network protocol systems and methods |
| US8488532B2 (en) | 2006-01-23 | 2013-07-16 | Sharp Kabushiki Kaisha | Base station device, mobile station device, mobile station identifier allocation method, program, and recording medium |
| WO2007083728A1 (en)* | 2006-01-23 | 2007-07-26 | Sharp Kabushiki Kaisha | Base station device, mobile station device, mobile station identifier allocation method, program, and recording medium |
| JP2008211574A (en)* | 2007-02-27 | 2008-09-11 | Matsushita Electric Ind Co Ltd | COMMUNICATION SYSTEM, BASE STATION AND TRANSMITTING / RECEIVING DEVICE USED FOR THE SAME, AND COMMUNICATION METHOD USED FOR THEM |
| JPWO2009051020A1 (en)* | 2007-10-17 | 2011-03-03 | ホーチキ株式会社 | Communications system |
| WO2009051020A1 (en)* | 2007-10-17 | 2009-04-23 | Hochiki Corporation | Communication system |
| AU2008313030B2 (en)* | 2007-10-17 | 2012-07-19 | Hochiki Corporation | Communication system |
| US8787246B2 (en) | 2009-02-03 | 2014-07-22 | Ipco, Llc | Systems and methods for facilitating wireless network communication, satellite-based wireless network systems, and aircraft-based wireless network systems, and related methods |
| US10168243B2 (en) | 2012-09-24 | 2019-01-01 | Sekisui Chemical Co., Ltd. | Leakage detector, leakage detection method, and pipe network monitoring apparatus |
| WO2014046237A1 (en) | 2012-09-24 | 2014-03-27 | 積水化学工業株式会社 | Leakage detector, leakage detection method, and pipe network monitoring apparatus |
| JP2020532206A (en)* | 2017-08-23 | 2020-11-05 | ロシックス・インコーポレイテッド | Systems and methods for providing communication with improved network frame structure architectures within wireless sensor networks |
| JP2024095669A (en)* | 2017-08-23 | 2024-07-10 | ザイナー， インコーポレイテッド | SYSTEM AND METHOD FOR PROVIDING COMMUNICATIONS WITH AN IMPROVED NETWORK FRAME STRUCTURE ARCHITECTURE IN A WIRELESS SENSOR NETWORK - Patent application |
| JP7746440B2 (en) | 2017-08-23 | 2025-09-30 | ザイナー， インコーポレイテッド | SYSTEM AND METHOD FOR PROVIDING COMMUNICATIONS WITH AN IMPROVED NETWORK FRAME STRUCTURE ARCHITECTURE IN A WIRELESS SENSOR NETWORK - Patent application |
| Publication number | Publication date |
|---|---|
| JP3986236B2 (en) | 2007-10-03 |
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