JPH01309424A - Signal transmission equipment - Google Patents
Signal transmission equipmentInfo
- Publication number
- JPH01309424A JPH01309424A JP13997588A JP13997588A JPH01309424A JP H01309424 A JPH01309424 A JP H01309424A JP 13997588 A JP13997588 A JP 13997588A JP 13997588 A JP13997588 A JP 13997588A JP H01309424 A JPH01309424 A JP H01309424A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- call signal
- slave
- transmitting
- calling
- 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
Links
- 230000008054 signal transmission Effects 0.000 title claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000013480 data collection Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、電池駆動式の複数の子器の中の１つを親器が
必要に応じて呼び出し、データ収集するのに最適な信号
伝送装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a signal transmission device that is optimal for a master device to call one of a plurality of battery-powered child devices as needed and collect data. .
従来の技術
従来のこの種の信号伝送装置としては一般に、ポーリン
グ方式と呼ばれる通信方式を用いたものがよく知られて
いる。2. Description of the Related Art As a conventional signal transmission device of this type, one using a communication method called a polling method is generally well known.
ポーリング方式とは親器が複数の子器を順番に呼び出し
てリンクを確立し、データを収集してゆく方式である。The polling method is a method in which a parent device sequentially calls multiple child devices to establish a link and collect data.
発明が解決しようとする課題
しかし、このような従来のポーリング方式の場合、全て
の子器は常に受信状態で待機し、親器がらのポーリング
信号を常時監視し、自己が選択されているか否かを常に
判断する必要がある。Problems to be Solved by the Invention However, in the case of such a conventional polling method, all child devices are always on standby in a receiving state, constantly monitoring the polling signal from the parent device, and checking whether or not it is selected. need to be constantly judged.
従って吊器側は、常に監視状態で電源を投入しておかな
ければならず、吊器を電池駆動式にしようとした場合、
電力消費が大きいという欠点のため実現が困難であった
。Therefore, the power to the hanging device must be turned on at all times in a monitoring state, and if you try to make the hanging device battery-powered,
It has been difficult to realize this method due to its drawback of high power consumption.
本発明はかかる従来の課題を解消するもので、吊器の電
力消費を抑えつつ、確実にデータ収集が可能な信号伝送
装置を実現することを目的とする。The present invention solves such conventional problems, and aims to realize a signal transmission device that can reliably collect data while suppressing power consumption of a hanging device.
課題を解決するための手段
上記課題を解決するために、本発明の信号伝送装置は、
目標とする吊器からのデータ収集に際して、少なくとも
同期コードおよび当該子器を示す相手先アドレスコード
で構成される呼び出し信号を所定時間の間、連続的に繰
り返し送信するための呼び出し信号送信手段と、該呼び
出し信号に対する当該子器からの応答信号を受信するこ
とによって、当該子器との間のリンクが取れたことを確
認するための応答信号受信手段を備えた親器と、この親
器からの呼び出し信号送信時間よりも短い時間間隔で間
欠的に短時間だけ電源をオンさせて、少ない電力消費で
呼び出し信号の存在を検出するとともに、呼び出し信号
の存在を検出した後は、更に電源のオンを継続させて呼
び出し信号パケットを受信するための呼び出し信号受信
手段と、受信した呼び出し信号の中の相手先アドレスコ
ードを解読し、この呼び出し信号が自己宛か否かを判定
するための自己アドレス判定手段と、呼び出し信号が自
己宛の時、親器が呼び出し信号の送信を停止するのを待
って親器に対して応答信号を送信するための応答信号送
信手段を備えた吊器で構成されるものである。Means for Solving the Problems In order to solve the above problems, the signal transmission device of the present invention includes:
a call signal transmitting means for continuously and repeatedly transmitting a call signal consisting of at least a synchronization code and a destination address code indicating the child device for a predetermined period of time when collecting data from a target hanging device; A master unit comprising a response signal receiving means for confirming that a link has been established with the slave unit by receiving a response signal from the slave unit in response to the call signal; The power is turned on intermittently for a short time at a time interval shorter than the calling signal transmission time to detect the presence of a calling signal with low power consumption, and after detecting the presence of the calling signal, the power is turned on again. A calling signal receiving means for continuously receiving the calling signal packets, and a self-address determining means for decoding the destination address code in the received calling signal and determining whether the calling signal is addressed to the calling signal. and a hanger equipped with a response signal transmitting means for transmitting a response signal to the parent unit after waiting for the parent unit to stop transmitting the call signal when the call signal is addressed to itself. It is.
作用
本発明は上記した構成によって、親器が所定の吊器から
データ収集を行う場合、親器は同期コードおよび当該子
器を示す相手先アドレスコードで構成される呼び出し信
号を一定時間、連続的に繰り返し送信する。一方、吊器
は電池駆動のため、常時受信回路を動作させておくわけ
にはいかないので、前記呼び出し信号の送信時間より短
い時間間隔で間欠的に短時間だけ呼びかけ信号受信手段
の電源をオンして、呼び出し信号を検出する。吊器は呼
び出し信号を検出したら、更に呼び出し信号受信手段の
電源オンを継続して、呼び出し信号を受信する。次に受
信した呼び出し信号の中の相手先アドレスコードを解読
し、自己宛の場合、親器が呼び出し信号の送信を停止す
るのを待って、親器に対して応答信号を送り返す。親器
はこの吊器から返送された応答信号を受信することによ
って、吊器との間のリンクが取れたことを確認すること
ができ、この後当該子器からのデータ収集処理が可能と
なる。According to the above-described configuration, when the parent device collects data from a predetermined hanging device, the parent device continuously sends a call signal consisting of a synchronization code and a destination address code indicating the slave device for a certain period of time. Repeatedly send to. On the other hand, since the hanging device is battery-powered, it is not possible to keep the receiving circuit operating all the time, so the power to the calling signal receiving means is turned on intermittently for short periods of time at intervals shorter than the sending time of the calling signal. to detect the ringing signal. When the hanger detects the call signal, it continues to turn on the power of the call signal receiving means to receive the call signal. Next, the device decodes the destination address code in the received calling signal, and if it is addressed to itself, waits for the parent device to stop transmitting the calling signal, and then sends a response signal back to the parent device. By receiving the response signal sent back from this hanging device, the parent device can confirm that the link with the hanging device has been established, and after this, it becomes possible to collect data from the child device. .
実施例
以下、本発明の実施例を添イ」図面にもとづいて説明す
る。第１図において（１）は親器、（２）は吊器であっ
て、親器（１）は、電池駆動式の吊器（２）からのデー
タ収集を電波、光等を利用したワイヤレス信号伝送方式
で行う構成となっている。Embodiments Hereinafter, embodiments of the present invention will be explained based on the accompanying drawings. In Figure 1, (1) is the main device, and (2) is the hanging device. The main device (1) collects data from the battery-powered hanging device (2) wirelessly using radio waves, light, etc. It is configured to use a signal transmission method.
（１）の親器は、ある特定の吊器を呼び出すための呼び
出し信号を送信するための呼び出し信号送信手段（３）
と、この呼び出し信号に対応して吊器から送信された応
答信号を受信するための応答信号受信手段（４）と、そ
の後、当該子器に対してデータ要求信号を出すためのデ
ータ要求信号送信手段（５）と、吊器から伝送されてき
たデータ信号を受信するためのデータ信号受信手段（６
）と、前記呼び出し信号およびデータ要求信号を電波に
して送信するための送信回路（７）と、吊器から電波で
送られてきた前記応答信号およびデータ信号を受信する
ための受信回路（８）およびアンテナ（９）等で構成さ
れる。(1) The parent device is a call signal transmitting means (3) for transmitting a call signal to call a specific hanging device.
, a response signal receiving means (4) for receiving a response signal transmitted from the hanging device in response to this call signal, and a data request signal transmitting means (4) for subsequently issuing a data request signal to the child device. means (5), and data signal receiving means (6) for receiving the data signal transmitted from the hanging device.
), a transmitting circuit (7) for transmitting the calling signal and the data request signal as radio waves, and a receiving circuit (8) for receiving the response signal and data signal transmitted from the hanging device by radio waves. and an antenna (9).
（２）の吊器は、前記親器（１）からの呼び出し信号を
受信するための呼び出し信号受信手段α０）と、この呼
び出し信号が自己宛のものか否かを判定するための自己
アドレス判定手段αυと、親器（１）が呼び出し信号の
送信を終了するのを検出するための呼び出し信号終了検
出手段（１２）と、呼び出し信号が自己宛のとき呼び出
し信号の終了を待って、親器（１）に応答信号を返送す
るための応答信号送信手段０階と、前記親器（１）から
のデータ要求信号を受信するためのデータ要求信号受信
手段Ｏａと、このデータ要求信号に対応して、データ信
号を送信するためのデータ信号送信手段０５）と、親器
（１）から電波で伝送されてきた呼び出し信号およびデ
ータ要求信号を受信するための受信回路α６）と、主と
して、この受信回路０６）へ供給される電源を必要に応
じて、入切するための電源制御手段（１７１と、応答信
号およびデータ信号を電波にして親器（１）へ送信する
ための送信回路α８）と、アンテナ０９）および吊器（
２）へ電源を供給するための電池（２０）等で構成され
る。The hanging device (2) includes a calling signal receiving means α0) for receiving the calling signal from the parent device (1), and a self-address determination unit for determining whether or not this calling signal is addressed to the device itself. means αυ; a calling signal end detection means (12) for detecting when the parent device (1) finishes transmitting the calling signal; (1), a response signal transmitting means 0th floor for returning a response signal, a data request signal receiving means Oa for receiving a data request signal from the parent device (1), and a data request signal receiving means Oa for receiving a data request signal from the parent device (1); , a data signal transmitting means 05) for transmitting a data signal, a receiving circuit α6) for receiving a calling signal and a data request signal transmitted by radio waves from the parent device (1), and A power supply control means (171) for turning on and off the power supplied to the circuit 06) as needed, and a transmitting circuit α8 for transmitting the response signal and data signal as radio waves to the parent device (1). , antenna 09) and hanging device (
2) consists of a battery (20) and the like for supplying power to the device.
次に上記構成における作用を第２図のタイミング図を用
いて、更に詳細に説明する。Next, the operation of the above configuration will be explained in more detail using the timing diagram of FIG.
親器（１）の方で、ある吊器に対するデータ収集要求が
発生すると、親器（１）は当該子器を示す相手先アドレ
スを含んだ呼び出し信号パケット（２１）の送信をＡ点
より開始する。一方、全ての吊器は、この呼び出し信号
バケツ） （２１）が送信される前は同図（ａ）で示す
ように、呼び出し信号パケット長Ｔ２より短い周期Ｔ１
で間欠的に受信回路α６）に短時間だけ電源供給するこ
とによって、該呼び出し信号パケソ） （２１）の発生
を監視する構成としている。When a data collection request for a certain hanging device occurs in the parent device (1), the parent device (1) starts transmitting a call signal packet (21) containing the destination address indicating the child device from point A. do. On the other hand, before this calling signal packet (21) is transmitted, all the hanging devices have a period T1 shorter than the calling signal packet length T2, as shown in (a) of the same figure.
The generation of the calling signal (21) is monitored by intermittently supplying power to the receiving circuit (alpha)6) for a short period of time.
今、Ｂ点において、吊器（２）が呼び出し信号パケット
（２１）の存在を検出したとすると、吊器（２）は受信
回路α６）の電源供給を更に継続させて、呼び出し信号
の受信および自己宛か否かの判定を行う。自己宛の時に
は受信回路０６）の電波供給を更に継続させるとともに
、呼び出し信号パケット（２１）の終了検出を行う。０
点において呼び出し信号パケット（２１）の終了を検出
したら、親器（１）に対して応答信号パケソ） （２２
）を送信する。親器（１）はこの応答信号パケソｌ−（
２２）を受けて、データ要求信号パケット（２３）を当
該子器宛に送信する。当該子器はこのデータ要求信号バ
ケソｌ−（２３）を受けて、データ信号パケット（２４
）を親器（１）に送信するとともに、受信回路０６）の
電源供給を再び元の周期Ｔ１の間欠供給に戻して、省電
力化を図っている。Now, at point B, if the hanger (2) detects the presence of the call signal packet (21), the hanger (2) further continues the power supply to the receiving circuit α6) to receive the call signal and Determine whether it is addressed to yourself or not. When the packet is addressed to the calling signal packet (21), the receiving circuit 06) continues to supply radio waves, and the end of the calling signal packet (21) is detected. 0
When the end of the calling signal packet (21) is detected at the point, it sends a response signal packet (22) to the parent device (1).
) to send. The parent device (1) receives this response signal
22), it transmits a data request signal packet (23) to the slave device. The child device receives this data request signal packet (23) and sends the data signal packet (24).
) is transmitted to the parent device (1), and the power supply to the receiving circuit 06) is returned to the original intermittent supply of cycle T1, thereby saving power.
第３図は、呼び出し信号パケソ） （２１）の一実施例
であり、同期コードと相手先アドレスの繰り返しで構成
される。FIG. 3 shows an example of the calling signal (21), which is composed of a synchronization code and a repetition of the destination address.
尚、本発明の主旨は第２図に示したような、親器からの
呼び出し信号バケツ） （２１）の後、吊器からの応答
信号パケット（２２）、親器からのデータ要求信号バケ
ソ） （２３）、吊器からのデータ信号バケ７ ） （
２４）で構成される通信制御方式に限定するものでなく
、たとえば、親器からの呼び出し信号パケッＩ−（２１
）の後、直ぐ吊器からはデータ信号パケソｌ−（２４）
を返す通信制御方式等も含まれることは言うまでもない
。この場合、データ信号パケット（２４）が、応答信号
を兼ねる形となる。The gist of the present invention is as shown in Fig. 2, after the call signal packet (21) from the main device, the response signal packet (22) from the hanging device, and the data request signal packet (21) from the main device. (23), data signal bucket from the hanging device 7) (
For example, the communication control method is not limited to the communication control method configured by
), the data signal packet solenoid (24) is immediately sent from the hanger.
It goes without saying that this also includes communication control methods that return . In this case, the data signal packet (24) also serves as a response signal.
以上のような構成により、吊器の電力消費を最少に抑え
つつ、親器は任意の吊器から、任意のタイミングでデー
タ収集することが可能となる。With the above configuration, the main device can collect data from any hanging device at any timing while minimizing the power consumption of the hanging device.
発明の効果
以上のように本発明の信号伝送装置によれば、次の効果
が得られる。Effects of the Invention As described above, according to the signal transmission device of the present invention, the following effects can be obtained.
吊器側の送信回路への電源供給を所定周期で間欠的に行
うことによって、親器から送信される呼び出し信号を捕
まえ、呼び出し信号が自己宛の時のみ、受信回路への電
源供給を継続するという構成によって、吊器の電力消費
を最少に抑えることができ、電池駆動式の吊器の実現が
可能となった。By intermittently supplying power to the transmission circuit on the hanger side at predetermined intervals, it catches the call signal sent from the parent unit, and continues to supply power to the reception circuit only when the call signal is addressed to itself. With this configuration, the power consumption of the hanging device can be minimized, making it possible to realize a battery-powered hanging device.
第１図は本発明の一実施例における信号伝送装置のブロ
ック図、第２図は同装置の動作を示すタイミング図、第
３図は同装置の一部詳細説明図である。
１・・・・・・親器、２・・・・・・吊器、３・・・・
・・呼び出し信号送信手段、４・・・・・・応答信号送
信手段、７・・・・・・送信回路、８・・・・・・受信
回路、９・・・・・・アンテナ、１０・・・・・・呼び
出し信号受信手段、１１・・・・・・自己アドレス判定
手段、１２・・・・・・呼び出し信号終了検出手段、１
３・・・・・・応答信号送信手段、１６・・・・・・受
信回路、１７・・・・・・電源制御手段、１８・・・・
・・送信回路、１９・・・・・・アンテナ、２０・・・
・・・電池。FIG. 1 is a block diagram of a signal transmission device according to an embodiment of the present invention, FIG. 2 is a timing diagram showing the operation of the device, and FIG. 3 is a partially detailed explanatory diagram of the device. 1... Parent device, 2... Hanging device, 3...
...Call signal transmitting means, 4...Response signal transmitting means, 7...Transmitting circuit, 8...Receiving circuit, 9...Antenna, 10. ... Calling signal receiving means, 11 ... Self-address determining means, 12 ... Calling signal end detection means, 1
3... Response signal transmitting means, 16... Receiving circuit, 17... Power supply control means, 18...
...Transmission circuit, 19...Antenna, 20...
···battery.
Claims (1)
同期コードおよび当該子器を示す相手先アドレスコード
で構成される呼び出し信号を所定時間の間、連続的に繰
り返し送信するための呼び出し信号送信手段と、前記呼
び出し信号に対する当該子器からの応答信号を受信する
ことによって、当該子器との間のリンクの確立を確認す
るための応答信号受信手段を備えた親器と、この親器か
らの呼び出し信号送信時間よりも短い時間間隔で間欠的
に短時間だけ電源が供給され、少ない電力消費で呼び出
し信号を検出するとともに、呼び出し信号を検出した後
は、更に電源供給が継続されて呼び出し信号パケットを
受信するための呼び出し信号受信手段および電源制御手
段と、受信した呼び出し信号の中の相手先アドレスコー
ドを解読し、この呼び出し信号が自己宛か否かを判定す
るための自己アドレス判定手段と、呼び出し信号が自己
宛の時、親器が呼び出し信号の送信を停止するのを待っ
て親器に対して応答信号を送信するための応答信号送信
手段を備えた子器で構成される信号伝送装置。a calling signal transmitting means for continuously and repeatedly transmitting a calling signal consisting of at least a synchronization code and a destination address code indicating the slave device for a predetermined period of time when collecting data from a target slave device; A parent unit including a response signal receiving means for confirming establishment of a link with the slave unit by receiving a response signal from the slave unit in response to the call signal; and a call signal from the base unit. Power is supplied intermittently for a short period of time at time intervals shorter than the transmission time, detecting a paging signal with low power consumption, and after detecting a paging signal, power supply is continued to receive the paging signal packet. a self-address determining means for decoding a destination address code in a received calling signal and determining whether or not the calling signal is addressed to the calling signal; 1. A signal transmission device comprising a slave unit having a response signal transmitting means for transmitting a response signal to the master unit after waiting for the master unit to stop transmitting a call signal when the call signal is addressed to the master unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13997588A JPH01309424A (en) | 1988-06-07 | 1988-06-07 | Signal transmission equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13997588A JPH01309424A (en) | 1988-06-07 | 1988-06-07 | Signal transmission equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01309424A true JPH01309424A (en) | 1989-12-13 |
Family
ID=15258026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13997588A Pending JPH01309424A (en) | 1988-06-07 | 1988-06-07 | Signal transmission equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01309424A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007096667A (en) * | 2005-09-28 | 2007-04-12 | Saxa Inc | Remote surveillance apparatus |
-
1988
- 1988-06-07 JP JP13997588A patent/JPH01309424A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007096667A (en) * | 2005-09-28 | 2007-04-12 | Saxa Inc | Remote surveillance apparatus |
| JP4522934B2 (en) * | 2005-09-28 | 2010-08-11 | サクサ株式会社 | Remote monitoring device |
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