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JPH0511689B2 - - Google Patents

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Publication number
JPH0511689B2
JPH0511689B2 JP17506386A JP17506386A JPH0511689B2 JP H0511689 B2 JPH0511689 B2 JP H0511689B2 JP 17506386 A JP17506386 A JP 17506386A JP 17506386 A JP17506386 A JP 17506386A JP H0511689 B2 JPH0511689 B2 JP H0511689B2
Authority
JP
Japan
Prior art keywords
moving object
data
receiving
communication
transmitting
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.)
Expired - Lifetime
Application number
JP17506386A
Other languages
Japanese (ja)
Other versions
JPS6331320A (en
Inventor
Tomomi Sano
Shiro Kondo
Keiichiro Ueda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP17506386A priority Critical patent/JPS6331320A/en
Publication of JPS6331320A publication Critical patent/JPS6331320A/en
Publication of JPH0511689B2 publication Critical patent/JPH0511689B2/ja
Granted legal-status Critical Current

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  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention] 【発明の属する技術分野】[Technical field to which the invention pertains]

本発明は例えばID送信要求信号を無線で受信
したうえ、自らのIDコードを無線で送信する手
段を備えた自動車などの高速移動物体と交信する
装置に関する。 なお以下各図において同一の符号は同一または
相当部分を示す。
The present invention relates to a device for communicating with a high-speed moving object such as a car, which is equipped with means for wirelessly receiving an ID transmission request signal and wirelessly transmitting its own ID code. Note that in the following figures, the same reference numerals indicate the same or corresponding parts.

【従来技術とその問題点】 従来、一般的な用途(例えばフアクトリ・オー
トメーシヨン、セキユリテイ、高速道路上での車
の検出等)を対象としたこの種の交信装置では電
波法上の制約から微弱電波を用いなければなら
ず、また移動物体に搭載されるこの微弱電波の交
信装置も移動物体上のバツテリの寿命等から余り
高感度とすることはできない。従つてこのような
移動物体と、該物体に対応する静止側の交信装置
との交信距離も短くしなければならないことにな
る。例えば100〜500KHz帯を用いるこの種の交信
では、現実には前記の交信距離は1〜1.5m以下
でなければならない。 一方このように短い交信距離の中で必要なデー
タを交信するには移動物体の移動速度も遅くしな
ければならない。例えば交信の搬送周波数を
500KHzとし、1Bitのデータ当たりの搬送信号の
波数を100波とすると500KHz/100=5KBPSのデ
ータ伝送速度となるが、この伝送速度で数字25
桁、つまり100Bitのデータの交信を行うものとす
ると、この1データ分の交信時間は100Bit/
5000BPS=20msとなる。 ここで1回の交信チヤンスに5つのデータ交信
を行うものとすると、その交信時間は20ms×5
=100msであり、またこの交信を行う前の移動物
体への交信要求送信時間を50msとすると1回の
交信チヤンスにおける交信時間は100ms+50ms
=150msとなる。 いまこの150msの交信時間内で前記の交信距離
を保つために、この間の移動物体の移動距離を1
m以内にするものとすれば移動物体、例えば自動
車の移動速度は24KM/H以下に制限されねばな
らない。 しかしながら車上のアンテナの位置も車によつ
てバラツキがあるので、これらのアンテナに対す
る距離を前記の交信距離に保つには、1交信チヤ
ンス内の車の移動距離には更に小としなければな
らず、他方、車速としては実用上は少なくとも
60KM/H速度においても交信ができることが望
まれる。 このように従来の一般用途におけるこの種の交
信装置では、高速で移動する物体との有効なデー
タ交信が困難であるという問題点がある。
[Prior art and its problems] Conventionally, this type of communication device for general purposes (e.g., factory automation, security, detection of vehicles on highways, etc.) has been weak due to restrictions under the Radio Law. Radio waves must be used, and the weak radio wave communication device mounted on the moving object cannot be made very sensitive due to the lifespan of the battery on the moving object. Therefore, the communication distance between such a moving object and a stationary communication device corresponding to the object must also be shortened. For example, in this type of communication using the 100 to 500 KHz band, the communication distance must actually be 1 to 1.5 meters or less. On the other hand, in order to communicate the necessary data within such a short communication distance, the moving speed of the moving object must also be slowed down. For example, the communication carrier frequency
If it is 500KHz and the number of carrier signal waves per 1 bit of data is 100 waves, the data transmission rate will be 500KHz/100 = 5KBPS, but at this transmission rate the number 25
If we are to communicate 100 bits of data, the communication time for one data is 100 bits/100 bits.
5000BPS=20ms. Assuming that five data communications are performed in one communication chance, the communication time is 20ms x 5
= 100ms, and if the communication request transmission time to the moving object before this communication is 50ms, the communication time in one communication chance is 100ms + 50ms.
=150ms. Now, in order to maintain the above communication distance within this 150ms communication time, the moving distance of the moving object during this time is 1
If the speed is to be within 24 km/h, the speed of moving objects such as automobiles must be limited to 24 km/h or less. However, since the location of the antennas on the vehicle varies depending on the vehicle, in order to maintain the distance to these antennas at the above communication distance, the distance traveled by the vehicle within one communication chance must be further reduced. , On the other hand, in terms of vehicle speed, at least
It is desirable to be able to communicate even at speeds of 60KM/H. As described above, conventional communication devices of this type for general use have a problem in that it is difficult to effectively communicate data with objects that move at high speed.

【発明の目的】[Purpose of the invention]

この発明は前記の問題点を解決し、短い交信距
離の交信装置を使つて高速で移動する物体と有効
に交信できる装置を提供することを目的とする。
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide a device that can effectively communicate with objects moving at high speed using a communication device with a short communication distance.

【発明の要点】[Key points of the invention]

本発明の要点は、データ要求信号(ID送信要
求信号10など)を無線で受信して、自らが所有
するデータ(IDコードなど)を無線で送信する
手段を備えた移動物体(車など)と交信する装置
であつて、 少なくとも前記データ要求信号を前記移動物体
へ送信するための送信アンテナ(2など)と、前
記移動物体からの送信データを受信するための複
数の受信アンテナ(31〜34など)とを備え、 前記送信アンテナおよび各受信アンテナは順次
前記移動物体の移動方向(Xなど)に並べて配置
され、 さらに前記の各受信アンテナよりの受信データ
(アンテナ受信信号11〜14など)の論理和か
らなるデータ(論理和受信々号15など)を求
め、該データを前記移動物体の送信データとする
手段(論理和回路5など)を備えるようにした点
にある。
The gist of the present invention is to provide a moving object (such as a car) equipped with means for wirelessly receiving a data request signal (ID transmission request signal 10, etc.) and wirelessly transmitting data (ID code, etc.) that it owns. A communication device comprising at least a transmitting antenna (such as 2) for transmitting the data request signal to the moving object, and a plurality of receiving antennas (such as 31 to 34) for receiving transmission data from the moving object. ), the transmitting antenna and each receiving antenna are sequentially arranged in the moving direction of the moving object (such as The present invention is characterized in that it includes means (such as a logical sum circuit 5) for obtaining data consisting of a sum (logical sum signal 15, etc.) and using the data as transmission data for the moving object.

【発明の実施例】[Embodiments of the invention]

以下第1図および第2図に基づいて本発明の実
施例を説明する。第1図は本発明の一実施例とし
ての要部構成を示すブロツク図、第2図は同じ
く、第1図の動作を説明するためのタイムチヤー
トである。 第1図において、1は高速でX方向に移動する
物体(例えば自動車)であり、内部に図外の受信
装置と送信装置とを備えており、この例では外部
(静止側)からのID送信要求信号に応じて、自ら
のIDコードを外部(静止側)へ送信する。 2は送信アンテナで、ID要求出力回路7から
出力されたID送信要求信号10(第2図)を移
動物体1に向つて送信する。 3(31〜34)は受信アンテナで、移動物体
1からの送信データ(IDコード)を受信するた
めのものである。ここで送信アンテナ2と受信ア
ンテナ31〜34はX方向に並んで配置されてい
る。 4(41〜44)は各アンテナ3からの受信信
号、即ちアンテナ受信々号11〜14(第2図)
を増巾整形する増巾整形器、5は論理和(OR回
路)、6は受信々号チエツク回路である。 ID要求出力回路7は送信アンテナ2からID送
信要求信号10を第2図1のように定期的に出
力、または図外の移動物体検知センサによつて移
動物体1を検知することによりID送信要求信号
10を出力する。この要求信号10を受信した移
動物体1は自身のIDコードを送信する。このID
コードは受信アンテナ31〜34がそれぞれ分担
して時系列的に受信する。各アンテナ3が受信す
るデータは移動物体1の移動速度により異なる。
また第1図では受信アンテナ3を4個配置した
が、移動物体1の最高移動速度により、この受信
アンテナ3の設置間隔、個数を任意に設定すれば
よい。 これらの受信アンテナ31〜34より受信し
た、同一のIDコードの各部分に対応するアンテ
ナ受信々号11〜14は、例えば第2図2〜5の
ように表わされ、この各信号11〜14はそれぞ
れの増巾・整形回路41〜44によつて増巾後整
形されたうえ、論理和回路5を介し、論理和によ
る重ね合わせが行われ第2図6のような論理和受
信々号15が得られる。この論理和受信々信号1
5のフオーマツトおよびエラーを受信々号チエツ
ク回路6を介してチエツクすることにより、正し
い受信データを得て移動物体1のIDコードを知
ることができる。
Embodiments of the present invention will be described below based on FIGS. 1 and 2. FIG. 1 is a block diagram showing the main structure of an embodiment of the present invention, and FIG. 2 is a time chart for explaining the operation of FIG. 1. In Fig. 1, 1 is an object (for example, a car) that moves at high speed in the X direction, and is equipped with a receiving device and a transmitting device (not shown) inside. In response to the request signal, it transmits its own ID code to the outside (stationary side). A transmitting antenna 2 transmits an ID transmission request signal 10 (FIG. 2) output from the ID request output circuit 7 toward the moving object 1. 3 (31 to 34) are receiving antennas for receiving transmission data (ID code) from the moving object 1. Here, the transmitting antenna 2 and the receiving antennas 31 to 34 are arranged side by side in the X direction. 4 (41 to 44) are received signals from each antenna 3, that is, antenna reception numbers 11 to 14 (Fig. 2).
5 is a logical sum (OR circuit), and 6 is a received signal check circuit. The ID request output circuit 7 periodically outputs an ID transmission request signal 10 from the transmitting antenna 2 as shown in FIG. 2, or requests ID transmission by detecting a moving object 1 with a moving object detection sensor not shown. Outputs signal 10. The moving object 1 that has received this request signal 10 transmits its own ID code. This ID
The receiving antennas 31 to 34 each share the code and receive it in chronological order. The data received by each antenna 3 differs depending on the moving speed of the moving object 1.
Although four receiving antennas 3 are arranged in FIG. 1, the installation interval and number of receiving antennas 3 may be arbitrarily set depending on the maximum moving speed of the moving object 1. The antenna reception signals 11 to 14 corresponding to each part of the same ID code received from these reception antennas 31 to 34 are represented, for example, as shown in FIGS. 2 to 5, and the respective signals 11 to 14 are widened and shaped by the respective widening/shaping circuits 41 to 44, and superimposed by logical sum via the logical sum circuit 5, resulting in the logical sum receiving signal 15 as shown in FIG. is obtained. This logical sum receive signal 1
By checking the format and error of 5 through the received signal check circuit 6, correct received data can be obtained and the ID code of the moving object 1 can be known.

【発明の効果】【Effect of the invention】

この発明によれば、移動物体の移動方向にこの
移動物体と交信するための送信アンテナと複数の
受信アンテナを配置することとしたので、安価な
方法で、高速の移動物体から、そのIDコードを
受信することができる。また同一の受信アンテナ
を複数個使用することにしたので、この交信装置
を標準部品の組合わせで簡単に構成できるメリツ
トが得られる。
According to this invention, since a transmitting antenna and a plurality of receiving antennas for communicating with a moving object are arranged in the moving direction of the moving object, the ID code of the moving object can be acquired from a fast moving object in an inexpensive manner. can be received. Furthermore, since a plurality of identical receiving antennas are used, there is an advantage that this communication device can be easily constructed by combining standard parts.

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

第1図は本発明の一実施例としての要部構成を
示すブロツク図、第2図は同じく、第1図の動作
を説明するためのタイムチヤートである。 1……移動物体、X……移動方向、2……送信
アンテナ、3,31〜34……受信アンテナ、5
……論理和回路、7……ID要求出力回路、10
……ID送信要求信号、11〜14……アンテナ
受信々号、15……論理和受信々号。
FIG. 1 is a block diagram showing the main structure of an embodiment of the present invention, and FIG. 2 is a time chart for explaining the operation of FIG. 1. 1... Moving object, X... Moving direction, 2... Transmitting antenna, 3, 31-34... Receiving antenna, 5
...Order circuit, 7...ID request output circuit, 10
. . . ID transmission request signal, 11 to 14 . . . antenna reception number, 15 . . . logical sum reception number.

Claims (1)

【特許請求の範囲】 1 データ要求信号を無線で受信して、自らが所
有するデータを無線で送信する手段を備えた移動
物体と交信する装置であつて、 少なくとも前記データ要求信号を前記移動物体
へ送信するための送信アンテナと、前記移動物体
からの送信データを受信するための複数の受信ア
ンテナとを備え、 前記送信アンテナおよび各受信アンテナは順次
前記移動物体の移動方向に並べて配置され、 さらに前記の各受信アンテナよりの受信データ
の論理和からなるデータを求め、該データを前記
移動物体の送信データとする手段を備えたことを
特徴とする移動物体との交信装置。
[Scope of Claims] 1. A device for communicating with a moving object, comprising means for wirelessly receiving a data request signal and wirelessly transmitting data owned by the device, the device comprising: transmitting at least the data request signal to the moving object; a transmitting antenna for transmitting data to the moving object; and a plurality of receiving antennas for receiving the transmitted data from the moving object, the transmitting antenna and each receiving antenna are sequentially arranged in the moving direction of the moving object, and An apparatus for communicating with a moving object, comprising means for obtaining data consisting of a logical sum of data received from each of the receiving antennas and using the data as transmission data for the moving object.
JP17506386A 1986-07-25 1986-07-25 Communication equipment with mobile body Granted JPS6331320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17506386A JPS6331320A (en) 1986-07-25 1986-07-25 Communication equipment with mobile body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17506386A JPS6331320A (en) 1986-07-25 1986-07-25 Communication equipment with mobile body

Publications (2)

Publication Number Publication Date
JPS6331320A JPS6331320A (en) 1988-02-10
JPH0511689B2 true JPH0511689B2 (en) 1993-02-16

Family

ID=15989578

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17506386A Granted JPS6331320A (en) 1986-07-25 1986-07-25 Communication equipment with mobile body

Country Status (1)

Country Link
JP (1) JPS6331320A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2700690B2 (en) * 1989-06-27 1998-01-21 松下電工 株式会社 Wireless call display system
JP2708955B2 (en) * 1990-10-30 1998-02-04 富士通株式会社 File access device
JP2722937B2 (en) * 1992-04-07 1998-03-09 トヨタ自動車株式会社 Wrinkle press load measuring device for press machine
US5457980A (en) * 1992-11-05 1995-10-17 Toyota Jidosha Kabushiki Kaisha Method and device for controlling, checking or optimizing pressure of cushion pin cylinders of press by discharging fluid or initial pressure
JP2776196B2 (en) * 1993-04-28 1998-07-16 トヨタ自動車株式会社 Diagnosis method and device for pressure equalizing cushion device

Also Published As

Publication number Publication date
JPS6331320A (en) 1988-02-10

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