JP2001126178A - Radio meter checking system - Google Patents
Radio meter checking systemInfo
- Publication number
- JP2001126178A JP2001126178A JP30687899A JP30687899A JP2001126178A JP 2001126178 A JP2001126178 A JP 2001126178A JP 30687899 A JP30687899 A JP 30687899A JP 30687899 A JP30687899 A JP 30687899A JP 2001126178 A JP2001126178 A JP 2001126178A
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- switching
- external input
- wireless
- unit
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、水道メータやガ
スメータなどの計量器に接続された子機と、この子機と
の無線通信により計量器の計量値を読み取る親機とを備
えた無線検針システムに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless meter reading device comprising a slave unit connected to a measuring instrument such as a water meter or a gas meter, and a master unit for reading a measured value of the measuring instrument by wireless communication with the slave unit. It is about the system.
【０００２】[0002]
【従来の技術】従来の無線検針システムでは、通常、親
機と子機との間において、単一の固定された通信周波数
で無線通信を行うものものが知られている。2. Description of the Related Art A conventional wireless meter reading system is known which normally performs wireless communication at a single fixed communication frequency between a master unit and a slave unit.
【０００３】[0003]
【発明が解決しようとする課題】ところが、単一の固定
された送受信周波数を使用する場合には、この送受信周
波数が到達する通信エリア内で、他の機器等が同一の送
受信周波数を使用していると、無線検針ができなくなっ
てしまう。However, when a single fixed transmission / reception frequency is used, another device or the like uses the same transmission / reception frequency in a communication area where the transmission / reception frequency reaches. If you do, wireless meter reading will not be possible.
【０００４】このため、例えば親機側のテンキーなどの
キーボードのキー操作により、親機と子機との間の送受
信周波数を、他で使用中のものではない別のものへと切
換えることが可能な構成のものも知られている。通常、
このようなキーボードでは、送受信周波数の切換えを行
うためのキーの他に、例えば、検針を行うためのキーな
ど、各キーにそれぞれの機能を設定・付与させた構成の
ものが知られている。For this reason, the transmission / reception frequency between the master unit and the slave unit can be switched to another one which is not being used by another by operating a key of a keyboard such as a numeric keypad of the master unit. Also known are those having a simple configuration. Normal,
As such a keyboard, there is known a configuration in which, in addition to a key for switching between transmission and reception frequencies, for example, a key for performing meter reading and the like, each key is set and assigned a function.
【０００５】ところが、このような構成の場合には、送
受信周波数の切換えとは異なる別の機能を設定・操作す
る際に打ち間違えを起こし、例えば、送受信周波数の切
換え用キーを打ったり、手や指が送受信周波数の切換え
用キーに触れるなどして、子機の周波数が他の周波数に
切り替わってしまう場合がある。この場合には、例えば
元の送受信周波数を忘れてしまったり、間違えて他の送
受信周波数を設定してしまったりすると、通信ができな
くなる虞れがある。However, in the case of such a configuration, a mistake is made when setting / operating another function different from the switching of the transmission / reception frequency. For example, a key for switching the transmission / reception frequency is hit, When the finger touches the transmission / reception frequency switching key, the frequency of the slave unit may be switched to another frequency. In this case, for example, if the original transmission / reception frequency is forgotten or another transmission / reception frequency is set by mistake, communication may not be possible.
【０００６】そこで、上記した事情に鑑み、この請求項
１に係る発明では、同一通信エリア内で、他の使用者が
同一の送受信周波数を使用して無線通信しているときに
は、別の送信周波数に切換えることができるとともに、
無線通信中に、誤って操作して他の送信周波数に切換る
といったことを防止する無線検針システムを提供するこ
とを目的とする。In view of the above circumstances, according to the present invention, when another user is performing radio communication using the same transmission / reception frequency in the same communication area, another transmission frequency is used. Can be switched to
An object of the present invention is to provide a wireless meter reading system that prevents an erroneous operation from being switched to another transmission frequency during wireless communication.
【０００７】また、請求項２に係る発明では、誤動作に
より送受信周波数が別のものに切換わるといったトラブ
ルを防止する無線検針システムを提供することを目的と
する。Another object of the present invention is to provide a wireless meter reading system which prevents a trouble that a transmission / reception frequency is switched to another one due to a malfunction.
【０００８】さらに、請求項３に係る発明では、送受信
周波数の切換え操作を行ったあとに残った切換え時間内
に誤操作して別の周波数に切換わるといったトラブルを
防止する無線検針システムを提供することを目的とす
る。Further, in the invention according to claim 3, there is provided a wireless meter reading system which prevents troubles such as switching to another frequency due to erroneous operation within a switching time remaining after performing switching operation of transmission / reception frequency. With the goal.
【０００９】さらに、請求項４に係る発明では、遠隔に
よる操作で、誤動作による送受信周波数が別のものに切
換わるといったトラブルを防止する無線検針システムを
提供することを目的とする。It is a further object of the present invention to provide a wireless meter reading system which prevents a trouble that a transmission / reception frequency is switched to another one due to a malfunction due to a remote operation.
【００１０】さらに、請求項５に係る発明では、簡易な
構成のもので誤動作による送受信周波数の切換わりを防
止する無線検針システムを提供することを目的とする。It is still another object of the present invention to provide a wireless meter reading system having a simple configuration and capable of preventing switching of transmission and reception frequencies due to malfunction.
【００１１】[0011]
【課題を解決するための手段】そのため、請求項１に記
載の発明は、無線により互いに送受信を行う親機及び子
機と、この子機に接続された計量器とを備え、親機が子
機との送受信により計量器の無線検針を行う無線検針シ
ステムにおいて、前記親機及び子機が複数の送受信周波
数で無線通信可能な無線通信手段を有するとともに、前
記親機または子機の少なくとも一方が、外部入力を検出
したら前記送受信周波数の切換が可能である「切換許可
モード」に設定されるものである。According to a first aspect of the present invention, there is provided a master unit and a slave unit which transmit and receive wirelessly to each other, and a scale connected to the slave unit, wherein the master unit is a slave unit. In a wireless meter reading system that performs wireless meter reading of the weighing device by transmission and reception with the machine, the master unit and the slave unit have wireless communication means capable of wireless communication at a plurality of transmission and reception frequencies, and at least one of the master unit or the slave unit is When the external input is detected, the transmission / reception frequency can be switched to a "switching permission mode".
【００１２】請求項２に記載の発明は、請求項１に記載
の発明において、前記親機または子機の少なくとも一方
に外部入力手段を備え、この外部入力手段からの外部入
力を検出したら、予め定められた切換え時間、前記送受
信周波数の切換が可能である「切換許可モード」に設定
されるものである。According to a second aspect of the present invention, in the first aspect of the present invention, at least one of the master unit and the slave unit includes an external input unit, and when an external input from the external input unit is detected, It is set to a "switching permission mode" in which the transmission and reception frequencies can be switched for a predetermined switching time.
【００１３】請求項３に記載の発明は、請求項１または
２に記載の発明において、前記親機または子機の少なく
とも一方が、送受信周波数の切換を行うと、前記切換え
時間の経過前であっても、送受信周波数が切換不可状態
である「切換禁止モード」に戻るものである。According to a third aspect of the present invention, in the first or second aspect of the invention, when at least one of the master unit and the slave unit switches the transmission / reception frequency, the switching time does not elapse before the switching time elapses. Even in this case, the transmission / reception frequency returns to the “switching prohibition mode” where switching is not possible.
【００１４】請求項４に記載の発明は、請求項１に記載
の発明において、外部入力に、無線または有線を用いた
ものである。According to a fourth aspect of the present invention, in the first aspect of the invention, wireless or wired is used for the external input.
【００１５】請求項５に記載の発明は、請求項２に記載
の発明において、外部入力手段に磁気式や手動式のスイ
ッチを用いたものである。According to a fifth aspect of the present invention, in the second aspect, a magnetic or manual switch is used as the external input means.
【００１６】[0016]
【発明の実施の形態】以下この発明について添付図面を
参照しながら説明する。図１は、この発明に係る無線検
針システムの構成を示すものであり、この無線検針シス
テムでは、親機１を単独に操作し、無線通信を行って子
機２に接続された計量器３のデータを収集するようにな
っている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a configuration of a wireless meter reading system according to the present invention. In this wireless meter reading system, a master unit 1 is operated independently, a wireless communication is performed, and a measuring device 3 connected to a slave unit 2 is communicated. It is designed to collect data.
【００１７】一方、図２は、この発明の他の実施例を示
すものであり、この無線検針システムでは、親機１が外
部機器４に接続されている。この外部機器４としては、
例えばハンディターミナルや集中検針盤、端末網制御装
置などが使用される。FIG. 2 shows another embodiment of the present invention. In this wireless metering system, a master unit 1 is connected to an external device 4. As this external device 4,
For example, a handy terminal, a centralized meter reading board, a terminal network control device, or the like is used.
【００１８】次に、この発明に係る親機１について説明
する。図３に示す親機１は、図示外の子機と無線通信を
行うための無線通信手段１１と、外部からの信号入力を
検知する外部入力手段１２と、外部入力手段１２からの
外部入力を入力して無線通信手段１１を制御する制御手
段１３とを備えている。Next, the master unit 1 according to the present invention will be described. The master unit 1 shown in FIG. 3 includes a wireless communication unit 11 for performing wireless communication with a slave unit (not shown), an external input unit 12 for detecting an external signal input, and an external input from the external input unit 12. And a control unit 13 for controlling the wireless communication unit 11 by inputting.
【００１９】この親機１は、普段、送受信周波数の切換
えは必要ないので、「切換え不可」の状態、つまり「切
換禁止モード」になっており、例えば特定通信エリア内
の子機に対して周波数「Ａ」の電波を使用して送受信す
るようになっている。また、この親機１では、外部入力
手段１２、例えば、リードスイッチなどの磁気式のスイ
ッチや手動式の押しボタンなどにより外部入力がある
間、「切換許可モード」に設定され、制御手段１３が送
受信周波数の「切換え可能状態」と判断するようになっ
ている。なお、この実施例では、親機１が集中盤やＮＣ
Ｕ（端末網制御装置）に接続される固定局を構成してい
る。Since the base unit 1 does not normally need to switch the transmission / reception frequency, the base unit 1 is in the "switching disabled" state, that is, the "switching prohibited mode". Transmission and reception are performed using the radio wave of “A”. Further, in the base unit 1, while there is an external input by an external input means 12, for example, a magnetic switch such as a reed switch, a manual push button, or the like, the mode is set to the "switching permission mode", and the control means 13 is operated. It is determined that the transmission / reception frequency is "switchable". In this embodiment, the master unit 1 is a central board or an NC.
A fixed station connected to U (terminal network control device) is configured.
【００２０】従って、その後、周波数「Ａ」の電波状態
が悪化したなどの理由で、他のチャンネルに切換えると
きなどには、例えば、外部信号を検知している間、制御
手段１３がまず送受信周波数の切換え可能な「切換許可
モード」を設定する。Therefore, when switching to another channel, for example, because the radio wave condition of the frequency "A" has deteriorated, for example, while the external signal is being detected, the control means 13 first sets the transmission / reception frequency. "Switching permission mode" that can be switched is set.
【００２１】そして、この「切換許可モード」の状態の
ときに、他の親機１や設定機などから無線で、または、
図示外の外部接続端子に接続される設定機やセンタなど
と有線で、送受信周波数を予め設定された他の周波数、
例えば「Ｂ」に切換える旨の指令信号を外部からこの親
機１が受信したとする。In the "switching permission mode", the other base unit 1 or the setting unit wirelessly or
Other frequency whose transmission / reception frequency is set in advance by wire with a setting machine or center connected to an external connection terminal (not shown),
For example, it is assumed that master device 1 receives a command signal for switching to “B” from outside.
【００２２】すると、無線通信手段１１の送受信周波数
を「Ａ」から「Ｂ」へ変更することができる。これによ
り、以後、送受信周波数「Ｂ」の電波にて送受信する。Then, the transmission / reception frequency of the wireless communication means 11 can be changed from "A" to "B". As a result, transmission and reception are subsequently performed using radio waves of the transmission and reception frequency “B”.
【００２３】次に、この発明に係る第２例について説明
する。この親機１は、図３において、普段は、送受信周
波数の切換えが不可の状態、つまり「切換禁止モード」
となっているが、制御手段１３が外部入力手段１２から
の外部入力を検知したら、予め定められた切換え時間、
例えば１分間だけ、送受信周波数の切換えを可能とする
「切換許可モード」が設定されるように構成されてい
る。従って、その間に、先の実施例の場合と同様にし
て、送受信周波数の切換えを行うことができる。Next, a second embodiment according to the present invention will be described. In FIG. 3, the base unit 1 is normally in a state in which the transmission and reception frequencies cannot be switched, that is, the “switching prohibited mode”.
However, when the control means 13 detects an external input from the external input means 12, a predetermined switching time,
For example, the "switch permission mode" is set so that the transmission frequency can be switched for only one minute. Therefore, the transmission and reception frequencies can be switched in the same manner as in the previous embodiment.
【００２４】次に、この発明に係る第３例について説明
する。この親機１は、図３において、普段、送受信周波
数の切換えは不可の状態、つまり「切換禁止モード」と
なっているが、制御手段１３が外部入力手段１２からの
外部入力を検知したら、予め定められた切換え時間、例
えば１分間などだけ、送受信周波数の切換えを可能とす
る「切換許可モード」が設定されている。その間に、先
の実施例と同様に、送受信の切換えを行うと、たとえそ
の切換え時間がまだ残っていても、切換え不可の「切換
禁止モード」状態に戻るようになっている。Next, a third embodiment according to the present invention will be described. In FIG. 3, the master unit 1 is normally in a state where switching of the transmission / reception frequency is impossible, that is, in the “switching prohibited mode”, but when the control unit 13 detects an external input from the external input unit 12, The "switching permission mode" is set so that the transmission and reception frequencies can be switched only for a predetermined switching time, for example, one minute. In the meantime, if the transmission and reception are switched in the same manner as in the previous embodiment, even if the switching time still remains, the state returns to the "switching prohibited mode" in which switching is not possible.
【００２５】また、この発明に係る第４例について説明
する。この親機１は、図３において、普段、送受信機の
切換えが不可の状態、つまり「切換禁止モード」となっ
ているが、無線または有線により切換え可能とする旨の
指令信号を外部から送ると、制御手段１３が作動し、送
受信周波数の切替えを可能な状態とする「切換許可モー
ド」が設定されるようになっている。一方、切換えを不
可とする旨の指令信号を外部から送ると、制御手段１３
が作動し、送受信周波数の切換えを不可能な「切換禁止
モード」状態が設定されるようになっている。Next, a fourth embodiment according to the present invention will be described. In FIG. 3, the master unit 1 is normally in a state in which the switching of the transceiver is not possible, that is, in the “switching prohibition mode”, but when a command signal indicating that the switching can be performed by wireless or wired is sent from the outside. The control means 13 is operated to set a "switching permission mode" in which the transmission and reception frequencies can be switched. On the other hand, when a command signal to disable switching is sent from outside, the control means 13
Operates to set a "switching inhibition mode" state in which the transmission / reception frequency cannot be switched.
【００２６】次に、この発明に係る子機２について説明
する。図４に示す第５例の子機２は、図示外の親機と無
線通信を行うための無線通信手段２１と、外部からの信
号入力を検知する外部入力手段２２と、外部入力手段２
２からの外部入力を入力して無線通信手段２１を制御す
る制御手段２３とを備えている。Next, the slave unit 2 according to the present invention will be described. The slave unit 2 of the fifth example shown in FIG. 4 includes a wireless communication unit 21 for performing wireless communication with a master unit (not shown), an external input unit 22 for detecting an external signal input, and an external input unit 2.
And a control means 23 for controlling the wireless communication means 21 by inputting an external input from the control unit 2.
【００２７】この子機２は、普段、送受信周波数の切換
えは必要ないので、「切換え不可」の状態、つまり「切
換禁止モード」になっており、例えば特定通信エリア内
の親機に対して周波数「Ａ」の電波を使用して送受信す
るようになっている。また、この子機２では、外部入力
手段２２、例えば、リードスイッチなどの磁気式のスイ
ッチや手動式の押しボタンなどにより外部入力がある
間、「切換許可モード」に設定され、制御手段２３が送
受信周波数の「切換え可能状態」と判断するようになっ
ている。Since the slave unit 2 does not normally need to switch the transmission / reception frequency, the slave unit 2 is in the "switching disabled" state, that is, the "switching prohibited mode". Transmission and reception are performed using the radio wave of “A”. Further, in the slave unit 2, while there is an external input by an external input means 22, for example, a magnetic switch such as a reed switch, a manual push button, or the like, the "switching permission mode" is set, and the control means 23 is set. It is determined that the transmission / reception frequency is "switchable".
【００２８】従って、その後、周波数「Ａ」の電波状態
が悪化したなどの理由で、他のチャンネルに切換えると
きなどには、例えば、外部信号を検知している間、制御
手段２３がまず送受信周波数の切換え可能な「切換許可
モード」を設定する。Therefore, when switching to another channel, for example, because the radio wave condition of the frequency "A" has deteriorated, for example, while detecting an external signal, the control means 23 first sets the transmission / reception frequency. "Switching permission mode" that can be switched is set.
【００２９】そして、この「切換許可モード」の状態の
ときに、親機や設定機などから無線で、（または、図示
外の外部接続端子に接続される検針機などと有線で）送
受信周波数を予め設定された他の周波数、例えば「Ｂ」
に切換える旨の指令信号を外部からこの子機２が受信し
たとする。In the "switching permission mode", the transmission / reception frequency is wirelessly transmitted from the master unit or the setting device (or wired to a meter reader connected to an external connection terminal (not shown)). Another frequency set in advance, for example, "B"
It is assumed that the slave unit 2 receives a command signal for switching to the external mode from the outside.
【００３０】すると、無線通信手段２１の送受信周波数
を「Ａ」から「Ｂ」へ変更することができる。これによ
り、以後、送受信周波数「Ｂ」の電波にて送受信する。Then, the transmission / reception frequency of the wireless communication means 21 can be changed from "A" to "B". As a result, transmission and reception are subsequently performed using radio waves of the transmission and reception frequency “B”.
【００３１】次に、この発明に係る第６例について説明
する。この子機２は、図４において、普段は、送受信周
波数の切換えが不可の状態、つまり「切換禁止モード」
となっているが、制御手段２３が外部入力手段２２から
の外部入力を検知したら、予め定められた切換え時間、
例えば１分間だけ、送受信周波数の切換えを可能とする
「切換許可モード」が設定されるように構成されてい
る。従って、その間に、先の実施例の場合と同様にし
て、送受信周波数の切換えを行うことができる。Next, a sixth embodiment according to the present invention will be described. In FIG. 4, the slave unit 2 is normally in a state in which the transmission and reception frequencies cannot be switched, that is, the “switching prohibited mode”.
However, when the control means 23 detects an external input from the external input means 22, a predetermined switching time,
For example, the "switch permission mode" is set so that the transmission frequency can be switched for only one minute. Therefore, the transmission and reception frequencies can be switched in the same manner as in the previous embodiment.
【００３２】次に、この発明に係る第７例について説明
する。この子機２は、図４において、普段、送受信周波
数の切換えは不可の状態、つまり「切換禁止モード」と
なっているが、制御手段２３が外部入力手段２２からの
外部入力を検知したら、予め定められた切換え時間、例
えば１分間などだけ、送受信周波数の切換えを可能とす
る「切換許可モード」が設定されている。その間に、先
の実施例と同様に、送受信の切換えを行うと、たとえそ
の切換え時間がまだ残っていても、切換え不可の「切換
禁止モード」状態に戻るようになっている。Next, a seventh embodiment according to the present invention will be described. In FIG. 4, the slave unit 2 is normally in a state where switching of the transmission / reception frequency is impossible, that is, in the “switching inhibition mode”. However, when the control unit 23 detects an external input from the external input unit 22, The "switching permission mode" is set so that the transmission and reception frequencies can be switched only for a predetermined switching time, for example, one minute. In the meantime, if the transmission and reception are switched in the same manner as in the previous embodiment, even if the switching time still remains, the state returns to the "switching prohibited mode" in which switching is not possible.
【００３３】また、この発明に係る第８例について説明
する。この子機２は、図４において、普段、送受信機の
切換えが不可の状態、つまり「切換禁止モード」となっ
ているが、無線または有線により切換え可能とする旨の
指令信号を外部から送ると、制御手段２３が作動し、送
受信周波数の切替えを可能な状態とする「切換許可モー
ド」が設定されるようになっている。一方、切換えを不
可とする旨の指令信号を外部から送ると、制御手段２３
が作動し、送受信周波数の切換えを不可能な「切換禁止
モード」状態が設定されるようになっている。An eighth example according to the present invention will be described. In FIG. 4, the slave unit 2 is normally in a state in which the switching of the transceiver is not possible, that is, in the “switching prohibited mode”. However, when a command signal indicating that the switching can be performed wirelessly or by wire is sent from the outside. The control means 23 operates to set a “switching permission mode” in which the transmission and reception frequencies can be switched. On the other hand, when a command signal to disable the switching is sent from outside, the control means 23
Operates to set a "switching inhibition mode" state in which the transmission / reception frequency cannot be switched.
【００３４】[0034]
【発明の効果】以上説明してきたように、請求項１に係
る発明によれば、外部からの入力により送受信周波数が
切換可能状態である「切換許可モード」を設定できるよ
うになっており、この外部入力により「切換許可モー
ド」に設定してあれば別の送信周波数に切換えることが
可能となるので、使用したい送受信周波数を、他の使用
者が、この周波数が到達する同一エリア内で使用してい
る場合でも、別の送受信周波数に切換えて無線検針シス
テムを行うことができる。As described above, according to the first aspect of the present invention, the "switching permission mode" in which the transmission / reception frequency can be switched by an external input can be set. If it is set to “switching permission mode” by external input, it is possible to switch to another transmission frequency, so the transmission / reception frequency to be used can be used by another user in the same area where this frequency reaches. In this case, the wireless metering system can be performed by switching to another transmission / reception frequency.
【００３５】しかも、外部入力したときに初めて送受信
周波数が切換可能状態となる「切換許可モード」を設定
できるようになっており、これ以外のときには切換え不
可の状態である「切換禁止モード」に設定できるから、
普段はこのモードに設定しておけば、無線通信中に、誤
って操作して他の送信周波数に切換るといったトラブル
を防止できる。In addition, the "switching permission mode", in which the transmission / reception frequency can be switched for the first time when externally inputted, can be set. In other cases, the "switching inhibition mode", in which the switching is disabled, is set. Because you can
If this mode is normally set, it is possible to prevent troubles such as erroneous operation and switching to another transmission frequency during wireless communication.
【００３６】さらに、請求項２に係る発明によれば、外
部入力手段が外部入力を出力してから一定の切換え時間
だけ、送受信周波数の切換え可能状態である「切換許可
モード」が設定させるようになっており、外部入力手段
による外部入力の遮断動作をうっかり忘れてしまい、誤
操作により送受信周波数が切換わるといったトラブルを
有効に防止できるので、一層信頼度の高い無線検針シス
テムが実現できる。Further, according to the second aspect of the invention, the "switching permission mode" in which the transmission / reception frequency can be switched is set for a fixed switching time after the external input means outputs the external input. This makes it possible to effectively prevent troubles such as switching the transmission / reception frequency due to inadvertent forgetting of the external input shut-off operation by the external input means and erroneous operation, so that a more reliable wireless metering system can be realized.
【００３７】さらに、請求項３に係る発明によれば、外
部入力手段が外部入力を出力してから一定の切換え時間
内に、送受信周波数の切換え動作が行われたら、たとえ
まだ切換え時間が残っていても、直ちに送受信切換え不
可状態である「切換禁止モード」が設定させるから、送
受信切換え動作を行った後の残った切換え時間内にうっ
かり誤操作して、送受信周波数が他に切換えられてしま
う、といったトラブルを有効に防止することができるの
で、さらに信頼度の高い無線検針システムが実現でき
る。Further, according to the third aspect of the present invention, if the transmission / reception frequency switching operation is performed within a certain switching time after the external input means outputs the external input, the switching time still remains. However, since the "switch prohibition mode" in which transmission / reception switching is disabled is immediately set, the transmission / reception frequency may be switched to another by inadvertent erroneous operation within the remaining switching time after performing the transmission / reception switching operation. Since troubles can be effectively prevented, a more reliable wireless meter reading system can be realized.
【００３８】さらに、請求項４に係る発明によれば、外
部入力に無線または有線を用いており、誤操作などによ
る送受信周波数の切換わりを、無線または有線での遠隔
操作で防止できるようになるから、例えばわざわざ子機
のある場所まで出向いて送受信周波数の切換わりを防止
するための設定操作を行わなくても親機側の無線などに
よる操作で済ませることが可能になり、都合がよい。Further, according to the fourth aspect of the present invention, since wireless or wired is used for the external input, switching of the transmission / reception frequency due to an erroneous operation can be prevented by wireless or wired remote operation. For example, even if the user does not bother to go to a place where the slave unit is located and perform the setting operation for preventing the switching of the transmission / reception frequency, the operation can be completed by the wireless operation of the master unit, which is convenient.
【００３９】さらに、請求項５に係る発明によれば、外
部入力手段にスイッチを用いたので、簡易な構成のもの
で、誤操作による送受信周波数の切換わりを有効に防止
することできるから、低コストで、信頼度の高い無線検
針システムが実現できる。Further, according to the fifth aspect of the present invention, since a switch is used as the external input means, the switch has a simple configuration and can effectively prevent the switching of the transmission / reception frequency due to an erroneous operation. Thus, a highly reliable wireless meter reading system can be realized.
【図１】この発明にかかる無線検針システムを示す構成
図である。FIG. 1 is a configuration diagram showing a wireless meter reading system according to the present invention.
【図２】この発明にかかる他の無線検針システムを示す
構成図である。FIG. 2 is a configuration diagram showing another wireless meter reading system according to the present invention.
【図３】その無線検針システムに使用する親機を示す構
成ブロック図である。FIG. 3 is a configuration block diagram showing a parent device used in the wireless meter reading system.
【図４】その無線検針システムに使用する子機を示す構
成ブロック図である。FIG. 4 is a configuration block diagram showing a slave unit used in the wireless meter reading system.
１ 親機 ２ 子機 ３ 計量器 ４ 外部機器 １１ 無線通信手段 １２ 外部入力手段 １３ 制御手段 REFERENCE SIGNS LIST 1 master unit 2 slave unit 3 measuring device 4 external device 11 wireless communication means 12 external input means 13 control means
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小玉 幸生 愛知県名古屋市中区錦二丁目２番13号 リ コーエレメックス株式会社内 (72)発明者 清水 明 愛知県名古屋市中区錦二丁目２番13号 リ コーエレメックス株式会社内 Ｆターム(参考） 2F073 AA07 AA08 AB02 AB03 BB01 BC02 GG01 5K067 AA25 BB21 EE02 EE10 EE63 GG01 JJ31 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yukio Kodama 2-13-13 Nishiki, Naka-ku, Nagoya City, Aichi Prefecture Inside Ricoh Elemex Co., Ltd. (72) Inventor Akira Shimizu 2-Nishiki, Naka-ku, Nagoya City, Aichi Prefecture No. 13 F-term in Ricoh Elemex Corporation (reference) 2F073 AA07 AA08 AB02 AB03 BB01 BC02 GG01 5K067 AA25 BB21 EE02 EE10 EE63 GG01 JJ31
Claims (5)
子機と、この子機に接続された計量器とを備え、親機が
子機との送受信により計量器の無線検針を行う無線検針
システムにおいて、 前記親機及び子機が複数の送受信周波数で無線通信可能
な無線通信手段を有するとともに、 前記親機または子機の少なくとも一方が、外部入力を検
出したら前記送受信周波数の切換が可能である「切換許
可モード」に設定されることを特徴とする無線検針シス
テム。1. A wireless meter reading system, comprising: a master unit and a slave unit that transmit and receive wirelessly to and from each other; and a scale connected to the slave unit, wherein the master unit performs wireless meter reading of the scale by transmitting and receiving to and from the slave unit. In the above, the master unit and the slave unit have wireless communication means capable of performing wireless communication at a plurality of transmission / reception frequencies, and when at least one of the master unit and the slave unit detects an external input, the transmission / reception frequency can be switched. A wireless meter reading system set in a "switching permission mode".
外部入力手段を備え、この外部入力手段からの外部入力
を検出したら、予め定められた切換え時間、前記送受信
周波数の切換が可能である「切換許可モード」に設定さ
れることを特徴とする請求項１に記載の無線検針システ
ム。2. An external input means is provided in at least one of the master unit and the slave unit. When an external input from the external input unit is detected, the transmission / reception frequency can be switched for a predetermined switching time. 2. The wireless metering system according to claim 1, wherein the wireless metering system is set to a "switching permission mode".
が、送受信周波数の切換を行うと、前記切換え時間の経
過前であっても、送受信周波数が切換不可状態である
「切換禁止モード」に戻ることを特徴とする請求項１ま
たは２に記載の無線検針システム。3. When at least one of the master unit and the slave unit switches the transmission / reception frequency, the transmission / reception frequency returns to the “switching disabled mode” in which the transmission / reception frequency cannot be switched even before the switching time elapses. The wireless meter reading system according to claim 1 or 2, wherein:
とを特徴とする請求項１に記載の無線検針システム。4. The wireless meter reading system according to claim 1, wherein wireless or wired is used for the external input.
ッチを用いたことを特徴とする請求項２に記載の無線検
針システム。5. The wireless metering system according to claim 2, wherein a magnetic switch or a manual switch is used as the external input means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30687899A JP4553277B2 (en) | 1999-10-28 | 1999-10-28 | Wireless meter reading system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30687899A JP4553277B2 (en) | 1999-10-28 | 1999-10-28 | Wireless meter reading system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001126178A true JP2001126178A (en) | 2001-05-11 |
| JP4553277B2 JP4553277B2 (en) | 2010-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30687899A Expired - Fee Related JP4553277B2 (en) | 1999-10-28 | 1999-10-28 | Wireless meter reading system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2020075609A1 (en) * | 2018-10-12 | 2021-09-02 | 富士フイルム株式会社 | Control method of ultrasonic diagnostic equipment and ultrasonic diagnostic equipment |
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| JPH02240522A (en) * | 1989-03-13 | 1990-09-25 | Tokyo Tatsuno Co Ltd | Wireless type liquid level measuring instrument |
| JPH04309017A (en) * | 1991-04-05 | 1992-10-30 | Matsushita Electric Works Ltd | Setting method for carrier frequency of slave station of radio communication system |
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| Publication number | Publication date |
|---|---|
| JP4553277B2 (en) | 2010-09-29 |
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