JPH09294287A - Position measurement method and device - Google Patents
Position measurement method and deviceInfo
- Publication number
- JPH09294287A JPH09294287A JP8127687A JP12768796A JPH09294287A JP H09294287 A JPH09294287 A JP H09294287A JP 8127687 A JP8127687 A JP 8127687A JP 12768796 A JP12768796 A JP 12768796A JP H09294287 A JPH09294287 A JP H09294287A
- Authority
- JP
- Japan
- Prior art keywords
- base station
- electric field
- field strength
- distance
- radio terminal
- 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.)
- Withdrawn
Links
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- Mobile Radio Communication Systems (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ＰＨＳにおける位
置測位方法及び装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a position positioning method and device for PHS.
【０００２】[0002]
【従来の技術】ＰＨＳは、一つの基地局（ＣＳ）が構成
する無線ゾーンが携帯電話と比較して極端に狭いという
本質的な特色を持っている。パーソナル・ハンディフォ
ン（ＰＳ）は、近辺のＣＳの電界強度を監視していて、
移動するなどして現在位置登録をしているＣＳがある程
度以下の電界強度になると、他のより強力な電界強度を
示すＣＳに位置登録を行う。このＣＳに位置登録された
情報を利用して、ＰＳの位置を特定する。2. Description of the Related Art The PHS has the essential feature that the radio zone formed by one base station (CS) is extremely narrow as compared with a mobile phone. The personal handyphone (PS) monitors the electric field strength of CS in the vicinity,
When the current location registration CS moves to a certain level or less and the field strength becomes lower than a certain level, the location registration is performed to another CS having a stronger field strength. The position of the PS is specified using the information registered in the CS.
【０００３】[0003]
【発明が解決しようとする課題】ＣＳに位置登録された
位置情報は、当然ネットワークでは知りえるものであ
る。しかしながら、ネットワーク側で知りうる情報であ
るが故、該ネットワーク事業者以外の第三者に該情報を
受け渡すことは、居場所というきわめて個人的なプライ
バシーの暴露にあたり、不可能であるという第１の問題
点がある。The position information registered in the CS can be naturally known in the network. However, since it is information that can be known on the network side, it is impossible to pass the information to a third party other than the network operator because it exposes the extremely personal privacy of the whereabouts. There is a problem.
【０００４】また、知り得たとしても、本位置情報は、
位置登録を行ったＣＳの場所を示すのみで、該ＣＳの形
成する無線ゾーンのどこにいるかまでの情報を示すもの
ではないという第２の問題点がある。Further, even if we can know, this position information is
There is a second problem that it only shows the location of the CS that has performed the location registration, and does not show the information on where in the wireless zone the CS forms.
【０００５】本発明は、ネットワークが関与せず、かつ
基地局ＣＳが形成する無線ゾーンのどこにいるかまでの
精度の高い位置測位装置を提供することにある。It is an object of the present invention to provide a highly accurate position locating device that does not involve a network and is located in a wireless zone formed by a base station CS.
【０００６】[0006]
【課題を解決するための手段】ネットワーク側が保持す
るＰＳのＣＳへの位置登録情報ではなく、ＣＳが周期的
に送信しているＣＳ−ＩＤ信号の電界強度を、ＣＳ−Ｉ
Ｄ信号を受信可能な複数のＣＳについて本発明の機能を
搭載する装置が測定し、ＣＳ毎にあらかじめ測定、もし
くは、基地局周辺の地形、建造物、季節別の樹木の影響
を考慮に入れて算定しておき、電界強度分布のデータベ
ースとＣＳ毎に照合してもっとも近い電界強度の組み合
わせから位置を特定することを特徴とする。The electric field strength of a CS-ID signal which is periodically transmitted by the CS is not the CS-I
An apparatus equipped with the function of the present invention measures a plurality of CSs capable of receiving D signals, and measures in advance for each CS, or in consideration of the terrain around the base station, buildings, and seasonal trees. It is characterized in that it is calculated and collated with a database of electric field intensity distribution for each CS to identify the position from the combination of the closest electric field intensity.
【０００７】従来のＣＳが形成する無線ゾーン内という
近似的な位置特定しかできなかった方式に比べて、ネッ
トワークが関与せず、かつ精度の高い位置測位が可能と
なる。[0007] Compared with the conventional method that can only approximate the position within the wireless zone formed by the CS, it is possible to perform highly accurate positioning without involving the network.
【０００８】なお、本発明を適用したシステムの例とし
て、以下が想定される。The following is assumed as an example of the system to which the present invention is applied.
【０００９】［例１］遊園地、デパート等の施設に来訪
した小児に、本発明による装置を携帯させることによ
り、迷子になった場合に、居場所の絶対位置をダイレク
トに把握することが容易に可能となる。従来では、迷子
になった場合には、館内放送等により、他の来訪者に発
見の依頼を周知して、施設のスタッフへ連絡してもらう
ことにより、保護を行っていた。[Example 1] By having a child who visits a facility such as an amusement park or a department store carry the device according to the present invention, it becomes easy to directly grasp the absolute position of the whereabouts when the child gets lost. It will be possible. Conventionally, when a child gets lost, he / she protects the information by informing other visitors of the request for discovery by broadcasting in the hall and contacting the staff of the facility.
【００１０】本発明による方式では、施設内に設置され
たＣＳによる電界強度分布を、あらかじめ測定、もしく
は、建造物、季節別の樹木の影響を考慮に入れて算定し
ておき、測定しようとする地点のＣＳの電界強度のデー
タをセンタに送信して照合し、位置を特定する。その位
置を保護者に連絡して、小児の保護を行う。In the method according to the present invention, the electric field strength distribution due to the CS installed in the facility is measured in advance, or is calculated in consideration of the influence of trees depending on the building and the season. The electric field strength data of the CS at the point is transmitted to the center for verification and the position is specified. Contact the parent / guardian with the location to protect the child.
【００１１】［例２］観光地等に訪れた来訪者に、観光
地内の局所的な情報（例えば、歴史的建造物ならば、遺
跡、壁画等の案内が考えられ、動植物園ならば、動植物
に関する案内が考えられる）を通信回線を通じて提供す
ることが可能となる。[Example 2] For visitors visiting a tourist spot, local information within the tourist spot (for example, if it is a historic building, guidance such as ruins and murals is considered, and if it is a botanical garden, animals and plants) It is possible to provide) via a communication line.
【００１２】例えば、歴史的建造物において、ある遺物
の前に立つと、その遺物に関する情報のみを、センタか
ら提供することが可能となる。For example, when standing in front of a certain relic in a historic building, it becomes possible for the center to provide only information regarding the relic.
【００１３】従来では、局所の近辺に設置したスピーカ
から案内をアナウンスする方法、局所の近辺に微弱電波
発信機を設置しておき、来訪者は受信機を所持して、そ
の近辺に近寄ることによって、発信機の電波の受信を行
う方法、または、コイン投入式案内装置で案内を行う方
法を採っていた。このような方式だと、装置が分散配置
されるため、機器が正常かどうかのチェック、料金収集
等の保守メンテナンス稼働が多くかかる。Conventionally, a method of announcing a guide from a speaker installed in the vicinity of a local area, a weak radio wave transmitter is installed in the vicinity of the local area, and a visitor carries a receiver and approaches the vicinity. , The method of receiving the electric wave of the transmitter or the method of performing the guidance by the coin-insertion type guiding device. In such a system, since the devices are arranged in a distributed manner, a lot of maintenance and maintenance operations such as checking whether the devices are normal and collecting charges are required.
【００１４】本発明による方式では、観光地内に設置さ
れたＣＳによる電界強度分布を、あらかじめ測定、もし
くは、建造物、季節別の樹木の影響を考慮に入れて算定
しておき、測定しようとする地点のＣＳの電界強度のデ
ータをセンタに送信して照合し、位置を特定する。その
位置をキーにして、局所的な情報の検索を行い、その局
所に関する情報のみを来訪者に提供する。In the method according to the present invention, the electric field strength distribution due to the CS installed in the tourist area is measured in advance or is calculated in consideration of the influence of trees according to the building and the season. The electric field strength data of the CS at the point is transmitted to the center for verification and the position is specified. Using that position as a key, local information is searched, and only information on that local area is provided to visitors.
【００１５】[0015]
【発明の実施の形態】図１は、本発明の一実施例を示す
ものである。図１において１はＣＳ１の無線ゾーン、２
はＣＳ２の無線ゾーン、３はＣＳ３の無線ゾーン、４は
位置測位しようとする地点Ｘ、５は位置測位しようとす
る地点Ｙである。図１は、模式的に同心円上の無線ゾー
ンの形成を示しているが、実際には、ＰＨＳが１．９Ｇ
Ｈｚ帯の周波数を使用しているため、直接波、反射波の
寄与が大きく、無線ゾーンは複雑な形状となる。FIG. 1 shows an embodiment of the present invention. In FIG. 1, 1 is a CS1 wireless zone, 2
Is a wireless zone of CS2, 3 is a wireless zone of CS3, 4 is a point X for which positioning is to be performed, and 5 is a point Y for which positioning is to be performed. Although FIG. 1 schematically shows the formation of wireless zones on concentric circles, in practice, PHS is 1.9G.
Since the frequency in the Hz band is used, the contribution of direct waves and reflected waves is large, and the wireless zone has a complicated shape.
【００１６】図２は、図１のＸ地点でのデータベースに
格納された電界強度分布を示す。FIG. 2 shows the electric field intensity distribution stored in the database at point X in FIG.
【００１７】図３は、図１のＹ地点でのデータベースに
格納された電界強度分布を示す。FIG. 3 shows the electric field intensity distribution stored in the database at point Y in FIG.
【００１８】図４において、６は電界強度測定機能６ａ
及びセンタとの通信機能６ｂを搭載する端末、７は通信
を行うためのＣＳ、８は公衆網、９は端末６との通信機
能９ａ、データベース照合機能９ｂ及びデータベース９
ｃを持つセンタ、１０は電界強度測定するためのＣＳを
示す。In FIG. 4, 6 is an electric field strength measuring function 6a.
And a terminal equipped with a communication function 6b with the center, 7 is a CS for communication, 8 is a public network, 9 is a communication function 9a with the terminal 6, a database collation function 9b and a database 9
A center 10 having c indicates a CS for measuring the electric field strength.
【００１９】図５は本発明の別の実施例で、１１は電界
強度測定機能６ａ、データベース照合機能９ｂ及びデー
タベース９ｃを搭載する端末、１０は電界強度を測定す
るためのＣＳを示す。FIG. 5 shows another embodiment of the present invention, in which 11 is a terminal equipped with an electric field strength measuring function 6a, a database collating function 9b and a database 9c, and 10 is a CS for measuring electric field strength.
【００２０】図６は、図４のシステム動作のフローチャ
ートを示す。FIG. 6 shows a flow chart of the system operation of FIG.
【００２１】次に上記実施例の動作について説明する。Next, the operation of the above embodiment will be described.
【００２２】図４のシステム動作について説明する。端
末６は、図１のＸ地点に置かれているものとする。図６
のフローチャートに示すように、端末６は、Ｘ地点での
ＣＳ７及びＣＳ１０の電界強度を測定した後（２２、２
４、２６）、そのデータを、通信機能６ｂを通してセン
タ９と接続して送信する（２８）。センタのデータベー
ス照合機能９ｂは、データベース９ｃと照合した結果、
最も近い電界強度分布の組み合わせ、すなわち図２に示
す電界強度分布が選択され、Ｘ地点という位置が特定さ
れ（３０）、端末６に返送される（３４）。The operation of the system shown in FIG. 4 will be described. It is assumed that the terminal 6 is placed at the point X in FIG. FIG.
As shown in the flowchart of FIG. 3, the terminal 6 measures the electric field strengths of CS7 and CS10 at the point X (22, 2).
4, 26), and the data is transmitted by connecting to the center 9 through the communication function 6b (28). The center database collation function 9b collates with the database 9c,
The closest combination of electric field intensity distributions, that is, the electric field intensity distribution shown in FIG. 2 is selected, the position X is specified (30), and returned to the terminal 6 (34).
【００２３】端末６が、図１のＹ地点に置かれた場合も
同様に、ＣＳ７及びＣＳ１０の電界強度を測定した後、
そのデータを、通信機能６ｂを通してセンタ９と接続し
て送信する。センタのデータベース照合機能９ｂは、デ
ータベース９ｃと照合した結果、最も近い電界強度分布
の組み合わせから位置を特定する。Similarly, when the terminal 6 is placed at the point Y in FIG. 1, after measuring the electric field strengths of CS7 and CS10,
The data is transmitted by connecting to the center 9 through the communication function 6b. As a result of collating with the database 9c, the center database collating function 9b identifies the position from the combination of the closest electric field intensity distributions.
【００２４】図５のシステム動作について説明する。装
置１１は、図１のＸ地点に置かれているものとする。装
置１１は、Ｘ地点でのＣＳ１０の電界強度を測定した
後、データベース照合機能９ｂが、データベース９ｃと
照合した結果、最も近い電界強度分布の組み合わせから
位置を特定する。The system operation of FIG. 5 will be described. The device 11 is assumed to be placed at the point X in FIG. After measuring the electric field strength of CS10 at the point X, the device 11 specifies the position from the combination of the closest electric field strength distributions as a result of the database matching function 9b matching the database 9c.
【００２５】[0025]
【発明の効果】上記実施例より明らかなように、本発明
は、ネットワーク側の位置登録機能による位置情報を利
用することなく、複数ＣＳの電界強度を測定して、あら
かじめ測定された複数ＣＳの電界強度分布と照合するこ
とにより位置測位するため、ネットワーク側に知れるこ
となく、また精度の高い位置測位をすることが可能であ
る。また、図５に示すようにセンタ機能すなわちデータ
ベース照合機能及びデータベースを端末に搭載させるこ
とにより、端末単体で位置測位を行うことも可能であ
る。As is apparent from the above-described embodiment, the present invention measures the electric field strength of a plurality of CSs without using the position information by the position registration function on the network side, and measures the plurality of CSs measured in advance. Positioning is performed by collating with the electric field strength distribution, so that it is possible to perform highly accurate position determination without being known to the network side. Further, as shown in FIG. 5, by mounting a center function, that is, a database collation function and a database on the terminal, it is possible to perform position positioning by the terminal alone.
【図１】ＣＳの無線ゾーンの例である。FIG. 1 is an example of a CS wireless zone.
【図２】Ｘ地点の電界強度分布である。FIG. 2 is an electric field strength distribution at point X.
【図３】Ｙ地点の電界強度分布である。FIG. 3 is an electric field strength distribution at point Y.
【図４】本発明のシステム構成例である。FIG. 4 is a system configuration example of the present invention.
【図５】本発明の別のシステム構成例である。FIG. 5 is another system configuration example of the present invention.
【図６】図４のシステム動作のフローチャートである。6 is a flowchart of the system operation of FIG.
１ ＣＳ１無線ゾーン ２ ＣＳ２無線ゾーン ３ ＣＳ３無線ゾーン ４ 位置測位点Ｘ ５ 位置測位点Ｙ ６ 電界強度測定機能と通信機能を搭載する端末 ７ 電界強度を測定するためと、センタと通信を行うた
めのＣＳ ８ 公衆網 ９ センタ １０ 電界強度を測定するためのＣＳ １１ 電界強度測定機能とデータベース照合機能とデー
タベースを搭載する装置1 CS1 wireless zone 2 CS2 wireless zone 3 CS3 wireless zone 4 Positioning point X 5 Positioning point Y 6 Terminal 7 equipped with electric field strength measurement function and communication function 7 For measuring electric field strength and for communicating with the center CS 8 Public network 9 Center 10 CS 11 for measuring electric field strength Device for equipping with electric field strength measurement function, database collation function and database
Claims (4)
より無線ゾーンを構成し、各基地局は固有の基地局識別
情報をふくむ電波を送出し、前記無線ゾーン内を移動可
能な複数の移動無線端末（６）の各々は、継続的に接続
可能な電界強度をもつ各基地局と無線通信手段を介して
接続される移動体通信システムにおいて、 各基地局（７、１０ａ、１０ｂ）からの距離対受信電界
強度特性をあらかじめ測定または算定しておき、 移動無線端末（６）は複数の基地局からの受信電界強度
を前記基地局識別情報を識別子として測定し、 受信電界強度の測定値を各基地局の距離対受信電界強度
特性と照合することにより、各基地局からの推定距離を
求め、 得られた複数の推定距離と各基地局の位置とから前記移
動無線端末（６）の存在位置または存在範囲を求めるこ
とを特徴とする、位置測定方法。1. A wireless zone is configured by a plurality of base stations (7, 10a, 10b), and each base station transmits a radio wave including unique base station identification information, and a plurality of mobile stations that can move within the wireless zone. In the mobile communication system, each mobile radio terminal (6) is connected to each base station having a continuously connectable electric field strength via radio communication means, from each base station (7, 10a, 10b). The distance-to-received field strength characteristic of is measured or calculated in advance, and the mobile radio terminal (6) measures received field strengths from a plurality of base stations using the base station identification information as an identifier, and a measured value of the received field strength. The estimated distance from each base station is obtained by collating with the distance-to-reception electric field strength characteristics of each base station, and the estimated distance from each base station and the position of each base station are used to determine the mobile radio terminal (6). Existence position or existence And obtaining the range, position measurement method.
出が可能な複数の基地局（７、１０ａ、１０ｂ）により
無線ゾーンを構成し、該無線ゾーン内を移動可能で継続
的に接続可能な電界強度をもつ各基地局と無線通信手段
を介して接続される移動無線端末（６）の位置を測定す
る位置測定装置において、 移動無線端末（６）または、移動無線端末（６）と無線
通信手段及び公衆網を介して接続される各基地局（７、
１０ａ、１０ｂ）は当該基地局からの距離対受信電界強
度特性を蓄積するデータベース（９ｃ）を有し、 前記移動無線端末（６）は複数の基地局からの受信電界
強度を前記基地局識別情報を識別子として測定する電界
強度測定機能（６ａ）を有し、 センタ（９）または前記移動無線端末（６）は受信電界
強度の測定値を各基地局の距離対受信電界強度特性と照
合し各基地局からの推定距離を求めるデータベース照合
機能（９ｂ）を有し、 得られた複数の推定距離と各基地局の位置とから前記移
動無線端末（６）の存在位置または存在範囲を求めるこ
とを特徴とする、位置測定装置。2. A wireless zone is constituted by a plurality of base stations (7, 10a, 10b) capable of transmitting radio waves including unique base station identification information, and the wireless zone is movable and continuously connectable. In a position measuring device for measuring the position of a mobile wireless terminal (6) connected to each base station having various electric field strengths via a wireless communication means, a mobile wireless terminal (6) or a mobile wireless terminal (6) and a wireless Each base station (7,
10a, 10b) has a database (9c) for accumulating characteristics of distance-to-received electric field strength from the base station, and the mobile radio terminal (6) receives received electric field strengths from a plurality of base stations as the base station identification information. The center (9) or the mobile radio terminal (6) compares the measured value of the received electric field strength with the distance-to-received electric field strength characteristic of each base station. A database collating function (9b) for obtaining an estimated distance from the base station is provided, and an existing position or an existing range of the mobile radio terminal (6) is obtained from the obtained plural estimated distances and the position of each base station. Characteristic position measurement device.
端末の通信のための通信機能と前記データベースを有
し、他の基地局は当該通信機能をもたず前記データベー
スを具備する、請求項１記載の位置測定方法。3. The base station at least partially has a communication function for communication of a mobile radio terminal and the database, and another base station does not have the communication function and includes the database. The position measuring method described in 1.
局周辺の地形、建造物、樹木、天候の少なくともひとつ
の影響をふくむことを特徴とする、請求項１記載の位置
測定方法。4. The position measuring method according to claim 1, wherein the distance-to-received electric field strength characteristic includes at least one influence of topography, buildings, trees, and weather around the base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8127687A JPH09294287A (en) | 1996-04-25 | 1996-04-25 | Position measurement method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8127687A JPH09294287A (en) | 1996-04-25 | 1996-04-25 | Position measurement method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09294287A true JPH09294287A (en) | 1997-11-11 |
Family
ID=14966224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8127687A Withdrawn JPH09294287A (en) | 1996-04-25 | 1996-04-25 | Position measurement method and device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09294287A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006242751A (en) * | 2005-03-03 | 2006-09-14 | Oki Electric Ind Co Ltd | Position measurement method and position measurement apparatus and position measurement system using it |
| WO2009041597A1 (en) * | 2007-09-26 | 2009-04-02 | Kyocera Corporation | Mobile terminal, base station, and mobile terminal positioning method |
| JP2009081686A (en) * | 2007-09-26 | 2009-04-16 | Kyocera Corp | Portable terminal, base station and location detection method of portable terminal |
| AU2006220538B2 (en) * | 2005-03-08 | 2010-11-18 | Qualcomm Incorporated | Pilot grouping and set management in multi-carrier communication systems |
| JP2012095012A (en) * | 2010-10-25 | 2012-05-17 | Fujitsu Ltd | Wireless distribution device, wireless distribution method, and wireless distribution program |
| JP2015195467A (en) * | 2014-03-31 | 2015-11-05 | 国立大学法人 東京大学 | mobile device |
| US10075313B2 (en) | 2005-03-08 | 2018-09-11 | Qualcomm Incorporated | Pilot grouping and route protocols in multi-carrier communication systems |
-
1996
- 1996-04-25 JP JP8127687A patent/JPH09294287A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006242751A (en) * | 2005-03-03 | 2006-09-14 | Oki Electric Ind Co Ltd | Position measurement method and position measurement apparatus and position measurement system using it |
| AU2006220538B2 (en) * | 2005-03-08 | 2010-11-18 | Qualcomm Incorporated | Pilot grouping and set management in multi-carrier communication systems |
| US8150408B2 (en) * | 2005-03-08 | 2012-04-03 | Qualcomm Incorporated | Pilot grouping and set management in multi-carrier communication systems |
| US10075313B2 (en) | 2005-03-08 | 2018-09-11 | Qualcomm Incorporated | Pilot grouping and route protocols in multi-carrier communication systems |
| WO2009041597A1 (en) * | 2007-09-26 | 2009-04-02 | Kyocera Corporation | Mobile terminal, base station, and mobile terminal positioning method |
| JP2009081686A (en) * | 2007-09-26 | 2009-04-16 | Kyocera Corp | Portable terminal, base station and location detection method of portable terminal |
| US8326363B2 (en) | 2007-09-26 | 2012-12-04 | Kyocera Corporation | Portable terminal, base station, and method of specifying position of portable terminal |
| JP2012095012A (en) * | 2010-10-25 | 2012-05-17 | Fujitsu Ltd | Wireless distribution device, wireless distribution method, and wireless distribution program |
| JP2015195467A (en) * | 2014-03-31 | 2015-11-05 | 国立大学法人 東京大学 | mobile device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20030701 |