JPH07307742A - Data transmission method - Google Patents
Data transmission methodInfo
- Publication number
- JPH07307742A JPH07307742A JP10085794A JP10085794A JPH07307742A JP H07307742 A JPH07307742 A JP H07307742A JP 10085794 A JP10085794 A JP 10085794A JP 10085794 A JP10085794 A JP 10085794A JP H07307742 A JPH07307742 A JP H07307742A
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- Japan
- Prior art keywords
- data transmission
- transmission device
- data
- order data
- changed
- Prior art date
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Abstract
Description
【０００１】[0001]
【産業の利用分野】本発明は無線デ−タ通信方法に係
り、とくに１台の上位デ−タ伝送装置と複数台の下位デ
−タ伝送装置間の無線デ−タ通信効率を高めた無線デ−
タ通信方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless data communication method, and more particularly, to a wireless data communication apparatus having a higher efficiency of wireless data communication between one upper data transmission device and a plurality of lower data transmission devices. De-
Data communication method.
【０００２】[0002]
【従来の技術】図１は従来の１台の上位デ−タ伝送装置
と複数台の下位デ−タ伝送装置間の無線デ−タ通信シス
テムを示す図であり、デ−タ通信に先立って１台の上位
デ−タ伝送装置１に下位デ−タ伝送装置の台数を予め設
定するようにしていた。また、上記デ−タ通信において
上位デ−タ伝送装置１が送信するデ−タ形式は例えば図
２に示すようなパケットに構成されていた。図２（ａ）
はパケットの先頭部に相手先アドレスと１パケット内デ
−タの伝送バイト数を付加し、パケットの末尾にはＣＲ
Ｃ(cyclic redundancy check)コ−ドを付加していた。2. Description of the Related Art FIG. 1 is a diagram showing a conventional wireless data communication system between one upper data transmission apparatus and a plurality of lower data transmission apparatuses. Prior to data communication, FIG. The number of lower-order data transmission devices is set in advance in one upper-order data transmission device 1. In the data communication, the data format transmitted by the higher-order data transmission device 1 is composed of a packet as shown in FIG. 2, for example. Figure 2 (a)
Adds the destination address and the number of bytes of data transmitted in one packet to the beginning of the packet, and CR to the end of the packet.
A C (cyclic redundancy check) code was added.
【０００３】また、図２（ｂ）は上記伝送バイト数を付
加しない場合であり、デ−タ伝送に先立って上位デ−タ
伝送装置と下位デ−タ伝送装置間で伝送バイト数を予め
設定するようにしていた。FIG. 2B shows the case where the number of transmission bytes is not added, and the number of transmission bytes is preset between the upper data transmission device and the lower data transmission device prior to data transmission. I was trying to do it.
【０００４】[0004]
【発明が解決しようとする課題】上記従来のデ−タ伝送
システムでは、１台の上位デ−タ伝送装置１と交信する
下位デ−タ伝送装置３の台数が予め設定されているた
め、運用途中で上位デ−タ伝送装置１は下位デ−タ伝送
装置３の台数変更を認識できず、上位デ−タ伝送装置１
は途中で休止した下位デ−タ伝送装置に対して不要なデ
−タを送信するという問題があった。また、下位デ−タ
伝送装置３の台数が途中で増加した場合には対応できな
いという困難であった。In the conventional data transmission system described above, the number of lower data transmission devices 3 communicating with one upper data transmission device 1 is set in advance, so that the operation is performed. The upper data transmission device 1 cannot recognize the change in the number of the lower data transmission devices 3 on the way, and therefore the upper data transmission device 1
Has a problem in that unnecessary data is transmitted to the lower-order data transmission device that has been suspended midway. In addition, it is difficult to deal with the case where the number of the lower-order data transmission devices 3 increases on the way.
【０００５】また、パケットを図２（ａ）のように構成
する場合には、パケット毎の伝送バイト数を可変長に指
定できるという利点が得られるものの、パケット毎に伝
送バイト数を送るので、その分だけスル−プットが低下
することが問題であった。Further, in the case of constructing the packet as shown in FIG. 2A, the number of transmission bytes for each packet can be specified as a variable length, but the number of transmission bytes is sent for each packet. The problem was that the throughput decreased by that amount.
【０００６】また、パケットを図２（ｂ）のように構成
する場合にはスル−プットを向上できるものの、デ−タ
長が固定されているため、例えば電波障害の多い場合に
デ−タ長を短くしてパケットエラ−を減らすような措置
が講じられないことが問題であった。When the packet is constructed as shown in FIG. 2B, the throughput can be improved, but the data length is fixed. Therefore, for example, when there are many radio interference, the data length is long. The problem was that no measures could be taken to shorten the packet length and reduce the packet error.
【０００７】本発明の目的は、上記デ−タ伝送システム
において、パケット長や下位デ−タ伝送装置３の台数等
の変更に容易に対応でき、さらに、伝送スピ−ド、搬送
周波数、送信電力等も容易に変更することのできる適応
性に優れたデ−タ伝送システムを提供することにある。An object of the present invention is to easily cope with changes in the packet length and the number of lower data transmission devices 3 in the data transmission system, and further, transmission speed, carrier frequency and transmission power. It is another object of the present invention to provide a data transmission system with excellent adaptability that can be easily changed.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するため
に、上位デ−タ伝送装置は各下位デ−タ伝送装置の認識
コ−ドを送信し、各下位デ−タ伝送装置は自身の認識コ
−ドを受信した場合に自身の認識コ−ドを返信し、上位
デ−タ伝送装置は上記返信された認識コ−ドより上記デ
−タ伝送を行なう下位デ−タ伝送装置の台数とその種別
を識別するようにする。また、デ−タ伝送の開始時に、
上位デ−タ伝送装置は下位デ−タ伝送装置毎のデ−タ伝
送における１パケット当たりのデ−タ長を各下位デ−タ
伝送装置間に連絡し、各下位デ−タ伝送装置は上記連絡
された１パケット当たりのデ−タ長に基づいてデ−タ伝
送を行ない、さらに、下位デ−タ伝送装置の１パケット
当たりのデ−タ長に変更が生じた場合には、下位デ−タ
伝送装置は上位デ−タ伝送装置に変更するデ−タ長を連
絡するようにする。In order to solve the above problems, the upper data transmission device transmits the recognition code of each lower data transmission device, and each lower data transmission device transmits its own identification code. When the recognition code is received, its own recognition code is returned, and the upper data transmission device is the number of lower data transmission devices that perform the above data transmission from the returned recognition code. And its type. Also, at the start of data transmission,
The upper data transmission device communicates the data length per packet in the data transmission of each lower data transmission device to each lower data transmission device, and each lower data transmission device described above. Data transmission is carried out based on the data length per packet communicated, and when the data length per packet of the lower data transmission device is changed, the lower data is transmitted. The data transmission device informs the upper data transmission device of the changed data length.
【０００９】また、上位デ−タ伝送装置と各下位デ−タ
伝送装置間の通信運用条件をステ−タス表示用電文によ
り相互に通信するようにする。さらに、上記ステ−タス
表示用電文を用いて、上位デ−タ伝送装置と各下位デ−
タ伝送装置間のデ−タの伝送スピ−ドを相互に通信し
て、受信感度が悪い場合には伝送スピ−ドを下げ、受信
感度の回復後には伝送スピ−ドを上げるようにする。さ
らに、ステ−タス表示用電文を用いて、デ−タ伝送に用
いる周波数を相互に通信して、受信感度が悪い場合には
上記周波数を変更するようにする。さらに、デ−タ伝送
の送信電力を相互に通信して、受信感度に応じて上記送
信電力を変更するようにする。さらに、ステ−タス表示
用電文を用いて、下位デ−タ伝送装置の優先度情報を通
信し、各下位デ−タ伝送装置の優先度に応じたデ−タ伝
送を行なう。Further, communication operating conditions between the upper data transmission device and each lower data transmission device are mutually communicated by a status display message. Further, by using the status display message, the upper data transmission device and each lower data transmission device.
The transmission speed of data between the data transmission devices is communicated with each other so that the transmission speed is lowered when the reception sensitivity is poor, and the transmission speed is raised after the reception sensitivity is recovered. Furthermore, the frequency used for data transmission is mutually communicated using the status display message, and the above frequency is changed when the reception sensitivity is poor. Further, the transmission powers of data transmission are mutually communicated, and the transmission powers are changed according to the reception sensitivity. Furthermore, the status information telegram is used to communicate the priority information of the lower-order data transmission device, and data transmission according to the priority of each lower-order data transmission device is performed.
【００１０】[0010]
【作用】上記認識コ−ドの送受信により、上位デ−タ伝
送装置はデ−タ伝送に参加する下位デ−タ伝送装置の台
数とその種別を識別する。また、上記１パケット当たり
のデ−タ長の送受信により、各下位デ−タ伝送装置は上
記連絡された１パケット当たりのデ−タ長に基づいたデ
−タ伝送を行ない、さらに、１パケット当たりのデ−タ
長に変更が生じた場合、下位デ−タ伝送装置は上位デ−
タ伝送装置に変更するデ−タ長を連絡する。By transmitting and receiving the above-mentioned recognition code, the upper data transmission device identifies the number of lower data transmission devices participating in the data transmission and their types. Further, by transmitting and receiving the data length per packet, each lower data transmission device performs data transmission based on the data length per packet communicated, and further, per packet. When the data length of the upper data is changed, the lower data transmission device
Notify the data length to be changed to the data transmission device.
【００１１】また、上位デ−タ伝送装置と各下位デ−タ
伝送装置はステ−タス表示用電文により通信運用条件を
相互に連絡する。さらに、上記ステ−タス表示用電文を
用いて上位デ−タ伝送装置と各下位デ−タ伝送装置間の
デ−タの伝送スピ−ドを相互に連絡し、受信感度が悪い
場合には伝送スピ−ドを下げ、受信感度の回復後には伝
送スピ−ドを上げるよう調整する。同様に、ステ−タス
表示用電文を用いてデ−タ伝送に用いる周波数を相互に
通信し、受信感度に応じて上記周波数を調整する。同様
に、ステ−タス表示用電文を用いてデ−タ伝送の送信電
力を相互に連絡し、受信感度に応じて上記送信電力を調
整する。同様に、ステ−タス表示用電文を用いて下位デ
−タ伝送装置の優先度情報を通信し、優先度に応じたデ
−タ伝送を行なう。Further, the upper data transmission device and each lower data transmission device communicate the communication operation conditions with each other by a status display message. Further, by using the above status display message, the transmission speed of data between the upper data transmission device and each lower data transmission device is mutually communicated, and when the reception sensitivity is poor, transmission is performed. Adjust the speed so that the speed is lowered and the transmission speed is increased after the reception sensitivity is restored. Similarly, the frequencies used for data transmission are mutually communicated using the status display message, and the frequencies are adjusted according to the reception sensitivity. Similarly, the transmission power of data transmission is mutually communicated using the status display message, and the transmission power is adjusted according to the reception sensitivity. Similarly, the priority information of the lower data transmission device is communicated by using the status display message, and data transmission according to the priority is performed.
【００１２】[0012]
【実施例】本発明では、図１に示した１台の上位デ−タ
伝送装置１と複数台の下位デ−タ伝送装置３間の無線デ
−タ伝送方法において、各デ−タ伝送装置の伝送スピ−
ド（ボ−レイト）、優先権、おうおび各無線部の搬送周
波数、送信電力、等のデ−タ伝送条件に関する情報を上
位デ−タ伝送装置１または下位デ−タ伝送装置３からの
コマンドにより変更可能にする。DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, in the wireless data transmission method between one upper data transmission apparatus 1 and a plurality of lower data transmission apparatuses 3 shown in FIG. Transmission speed
A command from the upper data transmission apparatus 1 or the lower data transmission apparatus 3 is used to send information regarding data transmission conditions such as mode (priority), priority, carrier frequency of each radio unit, transmission power, and the like. Can be changed by.
【００１３】すなわちイニシアル設定として、上位デ−
タ伝送装置１は自身のデ−タ伝送条件を予め定めたコマ
ンド、または図４に示したステ−タス表示用電文等によ
り各下位デ−タ伝送装置３に通知し、デ−タ通信に参加
する各下位デ−タ伝送装置３はそれぞれのデ−タ伝送条
件を上位デ−タ伝送装置１の無線部４に同様にして通知
する。That is, as the initial setting, the upper data
The data transmission apparatus 1 notifies each lower-order data transmission apparatus 3 by a command that predetermines its own data transmission condition or the status display message shown in FIG. 4 or the like to participate in the data communication. Each lower data transmission device 3 that performs the above notification notifies the respective data transmission conditions to the radio unit 4 of the upper data transmission device 1 in the same manner.
【００１４】なお、上記デ−タ伝送条件においては、必
要な項目のみを通知するようにすることもできる。In the above data transmission condition, only necessary items may be notified.
【００１５】例えば、デ−タ伝送に参加する下位デ−タ
伝送装置３を知る場合には参加する下位デ−タ伝送装置
３のＩＤ（識別コ−ド）のみを調べればよい。For example, in order to know the lower-order data transmission device 3 participating in the data transmission, only the ID (identification code) of the lower-order data transmission device 3 to participate in is to be checked.
【００１６】このため、上位デ−タ伝送装置１は各下位
デ−タ伝送装置に割り当てられたＩＤを送信し、電源の
入っている下位デ−タ伝送装置３はこのＩＤを受信して
自身のＩＤを返信する。例えば、上位デ−タ伝送装置１
のＩＤを０１Ｈ、下位デ−タ伝送装置３のＩＤを０１Ｈ
〜０ｎＨとして、０３Ｈ，０４Ｈ，０６Ｈ，０８Ｈが返
信されたとすると、上位デ−タ伝送装置１はデ−タ通信
を行なう下位デ−タ伝送装置３は４台である把握し、同
時にその４台のＩＤを認識する。この結果、１；４の通
信セル構造が構成され、休止する下位デ−タ伝送装置が
除外することができる。また、上記の動作を随時、ある
いは定期的に行なうことにより、途中で休止する下位デ
−タ伝送装置、あるいは途中で参加する下位デ−タ伝送
装置を知ることができる。Therefore, the high-order data transmission apparatus 1 transmits the ID assigned to each low-order data transmission apparatus, and the low-order data transmission apparatus 3 which has a power supply receives the ID and receives the ID. I will send back the ID. For example, the upper data transmission device 1
Of the lower data transmission device 3 is 01H.
If 03H, 04H, 06H, 08H are returned as 0nH, the upper data transmission device 1 recognizes that there are four lower data transmission devices 3 that perform data communication, and at the same time, the four Recognize the ID. As a result, the communication cell structure of 1; 4 is configured, and the inactive lower data transmission device can be excluded. Further, by performing the above-mentioned operation at any time or periodically, it is possible to know the lower-order data transmission apparatus that is suspended midway or the lower-order data transmission apparatus that participates in the middle.
【００１７】また、上位デ−タ伝送装置１と上記各下位
デ−タ伝送装置３間のそれぞれの１パケット長は図３に
示す手順によってしることができる。図３において、上
位デ−タ伝送装置１はＩＤが０３Ｈである下位デ−タ伝
送装置３−３に対して１パケット長に関する情報３Ａを
送信し、これを受信したＩＤが０３Ｈの下位デ−タ伝送
装置３は認知コ−ドＡＣＫ３を返信する。上位デ−タ伝
送装置１が上記ＡＣＫ３を受信できなかった場合は、受
信できるまで上記の手順を繰返す。同様にして、ＩＤが
０ｎＨである下位デ−タ伝送装置３−ｎに対しては１パ
ケット長に関する情報Ａｎを送信し、これを受信したＩ
Ｄが０ｎＨの下位デ−タ伝送装置３−ｎは認知コ−ドＡ
ＣＫｎを返信する。The length of each packet between the upper data transmission device 1 and each of the lower data transmission devices 3 can be determined by the procedure shown in FIG. In FIG. 3, the upper data transmission device 1 transmits the information 3A regarding the 1-packet length to the lower data transmission device 3-3 whose ID is 03H, and the lower data transmission device 3D having the received ID 3H receives this information 3A. The data transmission device 3 returns a recognition code ACK3. When the upper data transmission device 1 cannot receive the ACK3, the above procedure is repeated until the ACK3 can be received. Similarly, the information An about the 1-packet length is transmitted to the lower data transmission device 3-n whose ID is 0 nH, and the received information I is received.
The lower data transmission device 3-n in which D is 0 nH is the recognition code A.
Reply CKn.
【００１８】また、デ−タ通信の途中で１パケット長が
変更される場合には、下位デ−タ伝送装置３から変更す
る１パケット長情報を送信し、これを受信した上位デ−
タ伝送装置３−ｎはその認知コ−ドを返信する。例えば
図３において、ＩＤが０３Ｈである下位デ−タ伝送装置
３−３は上位デ−タ伝送装置１に対して変更する１パケ
ット長情報３Ａ’を送信し、これを受信した上位デ−タ
伝送装置１はその認知コ−ドＡＣＫ１を返信する。下位
デ−タ伝送装置３−３が上記ＡＣＫ１を受信できなかっ
た場合には上記の手順を繰返す。同様にして、ＩＤが０
ｎＨである下位デ−タ伝送装置３−ｎは変更する１パケ
ット長情報Ａｎ’を送信し、これを受信した上位デ−タ
伝送装置１はその認知コ−ドＡＣＫ１を返信する。以上
の手続により、伝送バイト数を毎回送る必要が無くな
り、また、図２（ａ）の伝送バイト欄を省略した同図
（ｂ）の形式のパケットを伝送することによりスル−プ
ットを向上することができる。When the one-packet length is changed during data communication, the one-packet length information to be changed is transmitted from the lower-order data transmission device 3, and the received upper-order data is received.
The data transmission device 3-n returns the recognition code. For example, in FIG. 3, the lower data transmission device 3-3 whose ID is 03H transmits the 1-packet length information 3A 'to be changed to the upper data transmission device 1, and receives the received upper data. The transmission device 1 returns the recognition code ACK1. When the lower data transmission device 3-3 cannot receive the ACK1, the above procedure is repeated. Similarly, ID is 0
The lower data transmission device 3-n which is nH transmits the 1-packet length information An 'to be changed, and the upper data transmission device 1 receiving this information returns the acknowledge code ACK1. By the above procedure, it is not necessary to send the number of transmission bytes every time, and the throughput is improved by transmitting the packet of the format shown in FIG. 2B in which the transmission byte column of FIG. 2A is omitted. You can
【００１９】また本発明では、上記１パケット長の他
に、ボ−レイトや搬送周波数、送信電力、および通信の
優先権等も同様にして随時変更できるようにする。図４
は上記変更の連絡に用いるステ−タス表示用電文の一例
である。デ−タ伝送の途中で変更要求を行なう場合、下
位デ−タ伝送装置３は変更が必要な欄の内容を変更した
図４のステ−タス表示用電文を上位デ−タ伝送装置１に
送り、上位デ−タ伝送装置１はこれを受信して要求され
た変更が可能か否かを決定し、その内容を同様なステ−
タス表示用電文として下位デ−タ伝送装置に返信する。
なお、図４のＩＤ情報は相手先のＩＤである。Further, in the present invention, in addition to the above-mentioned one packet length, the baud rate, carrier frequency, transmission power, communication priority and the like can be similarly changed at any time. Figure 4
Is an example of a status display message used to notify the above change. When a change request is made in the middle of data transmission, the lower data transmission apparatus 3 sends the status display message of FIG. The upper data transmission device 1 receives this and determines whether or not the requested change can be made, and the contents thereof are compared to the same status.
It is sent back to the lower data transmission device as a status display message.
The ID information in FIG. 4 is the ID of the other party.
【００２０】たとえば運用の途中において下位デ−タ伝
送装置が休止する場合には、上記ステ−タス表示用電文
内のボ−レイト、あるいは送信電力、あるいは優先権を
０に設定することにより当該下位デ−タ伝送装置の休止
を上位デ−タ伝送装置に伝えることができる。また、運
用の途中で参加する場合には、上記ステ−タス表示用電
文内を新規に送信すればよいことになる。For example, when the lower-order data transmission device is suspended during operation, by setting the baud rate in the status display message, the transmission power, or the priority to 0, the lower-order data transmission device is stopped. The suspension of the data transmission device can be transmitted to the upper data transmission device. Further, when participating in the middle of operation, it is only necessary to newly transmit the above-mentioned status display message.
【００２１】[0021]
【発明の効果】本発明により、１台の上位デ−タ伝送装
置と複数台の下位デ−タ伝送装置間の無線デ−タ通信シ
ステムにおいて、上位デ−タ伝送装置は通電中の下位デ
−タ伝送装置のみと交信するようにしたため、休電中の
下位デ−タ伝送装置に対する送受信時間を省略すること
ができ、デ−タ伝送の効率を高めることができる。ま
た、上記上位と下位のデ−タ伝送装置間でパケット長を
毎回連絡する必要がなく、さらに、このパケット長を随
時変更できるので、デ−タ通信のスル−プットを高める
ことができる。According to the present invention, in a wireless data communication system between one upper data transmission device and a plurality of lower data transmission devices, the upper data transmission device is the lower data that is being energized. Since the communication is performed only with the data transmission device, it is possible to omit the transmission / reception time for the low-order data transmission device during the power interruption, and to improve the efficiency of data transmission. Further, since it is not necessary to communicate the packet length between the upper and lower data transmission devices each time, and the packet length can be changed at any time, the throughput of data communication can be enhanced.
【００２２】さらに、ステ−タス表示用電文を使用し
て、伝送スピ−ド（ボ−レイト）、送信電力、および下
位デ−タ伝送装置間の優先権等も随時変更できるので、
例えば受信感度が悪い場合に伝送スピ−ド、搬送周波
数、送信電力等を適切に調整してデ−タエラ−の発生を
低減することができる。また、上記１台の上位デ−タ伝
送装置と複数台の下位デ−タ伝送装置で構成されたセル
が発生する妨害電波を、搬送周波数や送信電力の調整に
より適切に抑圧できるので、本発明を適用すれば、セル
間の電波妨害の少ないセルラ−方式の通信システムを提
供することができる。また、特定の下位デ−タ伝送装置
にデ−タの送受信処理が集中した場合等には下位デ−タ
伝送装置間の優先権を大きく設定し直してシステム全体
の送受信処理を効率的に処理することができる。Furthermore, since the status display message can be used to change the transmission speed (rate), the transmission power, the priority between the lower data transmission devices, etc. at any time,
For example, when the reception sensitivity is poor, the transmission speed, carrier frequency, transmission power, etc. can be adjusted appropriately to reduce the occurrence of data error. Further, the interference wave generated by the cell composed of the one upper data transmission device and the plurality of lower data transmission devices can be appropriately suppressed by adjusting the carrier frequency and the transmission power. By applying the above, it is possible to provide a cellular communication system with less radio interference between cells. Further, when data transmission / reception processing concentrates on a specific lower-order data transmission apparatus, the priority between the lower-order data transmission apparatuses is set to a large level to efficiently process the transmission / reception processing of the entire system. can do.
【図１】 上位デ−タ伝送装置と複数台の下位デ−タ伝
送装置で構成された従来のデ−タ伝送の構成図である。FIG. 1 is a configuration diagram of conventional data transmission including an upper data transmission device and a plurality of lower data transmission devices.
【図２】 図１におけるパケットの構成例である。FIG. 2 is a configuration example of a packet in FIG.
【図３】 本発明における上位デ−タ伝送装置と下位デ
−タ伝送装置間の通信条件設定方法の説明図である。FIG. 3 is an explanatory diagram of a communication condition setting method between an upper data transmission device and a lower data transmission device according to the present invention.
【図４】 図３の通信条件設定に用いるステ−タス表示
用電文の一例である。FIG. 4 is an example of a status display message used for communication condition setting in FIG.
１…上位デ−タ伝送装置、２、４…無線部、３…下位デ
−タ伝送装置。1 ... High-order data transmission device, 2,4 ... Radio part, 3 ... Lower-order data transmission device.
Claims (7)
位デ−タ伝送装置間のデ−タ伝送方法において、上位デ
−タ伝送装置は各下位デ−タ伝送装置の認識コ−ドを送
信し、各下位デ−タ伝送装置は自身の認識コ−ドを受信
した場合に自身の認識コ−ドを返信し、上位デ−タ伝送
装置は上記返信された認識コ−ドより上記デ−タ伝送を
行なう下位デ−タ伝送装置の台数とその種別を識別する
ようにしたことを特徴とするデ−タ伝送方法。1. A data transmission method between one upper data transmission apparatus and a plurality of lower data transmission apparatuses, wherein the upper data transmission apparatus is a recognition code of each lower data transmission apparatus. -The lower data transmission device sends back its own recognition code when it receives its own recognition code, and the upper data transmission device sends the above recognition code. A data transmission method characterized in that the number and type of lower-order data transmission devices that perform the above-mentioned data transmission are identified.
位デ−タ伝送装置間のデ−タ伝送方法において、デ−タ
伝送の開始時に、上位デ−タ伝送装置は下位デ−タ伝送
装置毎のデ−タ伝送における１パケット当たりのデ−タ
長を各下位デ−タ伝送装置間に連絡し、各下位デ−タ伝
送装置は上記連絡された１パケット当たりのデ−タ長に
基づいてデ−タ伝送を行ない、さらに、下位デ−タ伝送
装置の１パケット当たりのデ−タ長に変更が生じた場合
には、下位デ−タ伝送装置は上位デ−タ伝送装置に変更
するデ−タ長を連絡するようにしたことを特徴とするデ
−タ伝送方法。2. A data transmission method between one upper data transmission device and a plurality of lower data transmission devices, wherein the upper data transmission device is the lower data transmission device at the start of data transmission. -The data length per packet in the data transmission of each data transmission device is communicated between each lower data transmission device, and each lower data transmission device transmits the data per packet communicated as described above. Data transmission is performed based on the data length, and when the data length per packet of the lower data transmission device is changed, the lower data transmission device transmits the upper data. A data transmission method characterized in that the data length to be changed is notified to the device.
位デ−タ伝送装置間の無線デ−タ伝送方法において、上
位デ−タ伝送装置と各下位デ−タ伝送装置間の通信運用
条件をステ−タス表示用電文により相互に通信するよう
にしたことを特徴とするデ−タ伝送方法。3. A wireless data transmission method between one upper data transmission device and a plurality of lower data transmission devices, wherein the upper data transmission device and each lower data transmission device are connected to each other. A data transmission method characterized in that communication operating conditions are mutually communicated by a status display message.
用電文を用いて、上位デ−タ伝送装置と各下位デ−タ伝
送装置間のデ−タの伝送スピ−ドを相互に通信して、受
信感度が悪い場合には伝送スピ−ドを下げ、受信感度の
回復後には伝送スピ−ドを上げるようにしたたことを特
徴とするデ−タ伝送方法。4. The data transmission speed between an upper data transmission device and each lower data transmission device is communicated with each other by using the status display message as set forth in claim 3. The data transmission method is characterized in that the transmission speed is lowered when the reception sensitivity is poor and the transmission speed is raised after the reception sensitivity is recovered.
文を用いて、デ−タ伝送に用いる周波数を相互に通信し
て、受信感度が悪い場合には上記周波数を変更するよう
にしたたことを特徴とするデ−タ伝送方法。5. The frequency display device according to claim 3, wherein the frequency used for data transmission is mutually communicated by using the status display message, and the frequency is changed when the reception sensitivity is poor. A data transmission method characterized by the above.
文を用いて、デ−タ伝送の送信電力を相互に通信して、
受信感度に応じて上記送信電力を変更するようにしたた
ことを特徴とするデ−タ伝送方法。6. The transmission power of data transmission is mutually communicated using a status display message according to claim 3,
A data transmission method characterized in that the transmission power is changed according to the reception sensitivity.
文を用いて、下位デ−タ伝送装置の優先度情報を通信し
て、各下位デ−タ伝送装置の優先度に応じたデ−タ伝送
を行なうようにしたたことを特徴とするデ−タ伝送方
法。7. The data according to claim 3, wherein the status information telegram is used to communicate the priority information of the lower data transmission device, and the priority information of each lower data transmission device is communicated. A data transmission method characterized in that data transmission is performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10085794A JPH07307742A (en) | 1994-05-16 | 1994-05-16 | Data transmission method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10085794A JPH07307742A (en) | 1994-05-16 | 1994-05-16 | Data transmission method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002213503A Division JP2003115850A (en) | 2002-07-23 | 2002-07-23 | Data transmission method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07307742A true JPH07307742A (en) | 1995-11-21 |
Family
ID=14284988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10085794A Pending JPH07307742A (en) | 1994-05-16 | 1994-05-16 | Data transmission method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07307742A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011516287A (en) * | 2008-04-09 | 2011-05-26 | アルデバラン ロボティクス | Control command architecture for mobile robots using joint limbs |
-
1994
- 1994-05-16 JP JP10085794A patent/JPH07307742A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011516287A (en) * | 2008-04-09 | 2011-05-26 | アルデバラン ロボティクス | Control command architecture for mobile robots using joint limbs |
| US9327400B2 (en) | 2008-04-09 | 2016-05-03 | Aldebaran Robotics | Control-command architecture for a mobile robot using articulated limbs |
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