JP2004096142A - Area polling system - Google Patents

Area polling system Download PDF

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Publication number
JP2004096142A
JP2004096142A JP2002250508A JP2002250508A JP2004096142A JP 2004096142 A JP2004096142 A JP 2004096142A JP 2002250508 A JP2002250508 A JP 2002250508A JP 2002250508 A JP2002250508 A JP 2002250508A JP 2004096142 A JP2004096142 A JP 2004096142A
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Japan
Prior art keywords
information
base station
station
mobile stations
mobile station
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Pending
Application number
JP2002250508A
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Japanese (ja)
Inventor
Yuzo Hiraki
平木 勇三
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Hitachi Kokusai Electric Inc
株式会社日立国際電気
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Priority to JP2002250508A priority Critical patent/JP2004096142A/en
Publication of JP2004096142A publication Critical patent/JP2004096142A/en
Application status is Pending legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To reduce a risk of collision of radio data from a plurality of mobile stations in a radio data transmission system including the plurality of mobile stations each provided with a radio device for transmitting the vehicle number information of its own station and positional movement information, and a base station for receiving and processing the information from each of the mobile stations.
SOLUTION: For an area polling signal from the base station, center point information within a predetermined range is added in addition to latitude/longitude information within a predetermined range, the distance between the base station and the position of the own vehicle is calculated from the center point information in a mobile station, and a timing for transmitting the movement/position information in radio data is controlled, thereby reducing collision on the radio data.
COPYRIGHT: (C)2004,JPO

Description

【0001】 [0001]
【発明の属する技術分野】 BACKGROUND OF THE INVENTION
本発明は、タクシー配車システム等、複数の移動局と基地局とで構成される無線データ伝送システムにおける地区エリアポーリング方式に関するものである。 The present invention is a taxi dispatch system, etc., to a district area polling scheme in a wireless data transmission system composed of a plurality of mobile stations and a base station.
【0002】 [0002]
【従来の技術】 BACKGROUND OF THE INVENTION
従来の地区エリアポーリング方式では、基地局が移動局の最新の動態・位置情報を得るために、基地局から一定範囲内に存在する移動局のデータを収集する地区エリアポーリングを行なう場合、基地局から全移動局に対し、一定範囲エリア情報として、緯度・経度の範囲情報を設定し、送信していた。 In a conventional district areas polling method, if the base station to obtain the latest dynamics and position information of the mobile station, it performs district area polling for collecting data of mobile stations existing in a predetermined range from the base station, the base station to all mobile stations from a certain range area information, and setting the range information of latitude and longitude, it has been transmitted.
【0003】 [0003]
これを受信した移動局は、把握している自局の現在位置の緯度・経度情報と比較して、自局が一定範囲エリア内に所在しているか否かの判断処理を行ない、一定範囲エリア内に所在すると判断した場合には、基地局へ自局の動態・位置情報をランダムタイミングで送信していた。 The mobile station that has received this, as compared with the latitude and longitude information of the current position of the own station to know performs judging whether processing the own station is located in a range area, a range of area when it is determined that located within the kinetic and position information of the own station has been transmitted at random timing to the base station.
【0004】 [0004]
基地局では、前記一定範囲エリア内の移動局から送信された動態・位置情報を受信し、地図画面表示等の処理を行なっていた。 The base station receives the dynamic and position information transmitted from the mobile station in the fixed range area, had performed processing such as a map screen.
【0005】 [0005]
【発明が解決しようとする課題】 [Problems that the Invention is to Solve
従来の技術では、基地局で必要とする一定範囲の地区エリア内に多数の移動局が存在した場合に、移動局が送信する動態・位置情報の無線データが衝突する可能性が大きくなり、衝突が多く発生した場合、移動局の情報が正確に得られない問題点が有った。 In the prior art, when a large number of mobile stations were present in the district within the area of ​​a certain range required in the base station, wireless data kinetic and position information transmitted by the mobile station potentially increases of collision, the collision may often occur, information of the mobile station there is precisely obtained without problems.
【0006】 [0006]
本発明は、地区エリアポーリングを行なう場合、無線データの衝突を低減し、移動局からの情報を正確に受信することを目的とする。 The present invention, when performing the district area polling to reduce collision of wireless data, and an object thereof is to accurately receive the information from the mobile station.
【0007】 [0007]
【課題を解決するための手段】 In order to solve the problems]
本発明は、上記の目的を達成するために、基地局から一定範囲の緯度・経度情報の他に、一定範囲の中心点情報を付加し、移動局にて該中心点情報からの自車位置までの距離を算出処理を行ない、動態・位置情報を無線データで送信するタイミングを制御することにより、無線データ上の衝突を減少させ、基地局での移動局情報をより正確に表示できるようにしたものである。 The present invention, in order to achieve the above object, in addition to the latitude and longitude information in a certain range from the base station adds the center point information in a certain range, the vehicle position from the center point information at the mobile station performs calculation processing the distance to, by controlling the timing of transmitting the kinetic and position information in the wireless data to reduce the collision on the wireless data, a mobile station information in the base station more accurately to be viewed one in which the.
【0008】 [0008]
【発明の実施の形態】 DETAILED DESCRIPTION OF THE INVENTION
以下、本発明の一実施例を図1〜図3を参照して説明する。 Hereinafter, a description will be given of an embodiment of the present invention with reference to FIGS. 図1に示すように、移動局は、位置検出装置1、処理装置2、無線機3で構成され、基地局は、無線機4、信号処理装置5、表示装置6で構成される。 As shown in FIG. 1, mobile station position detection apparatus 1, the processing apparatus 2 is composed of radio 3, base station, radio 4, the signal processing device 5, and a display device 6.
【0009】 [0009]
以下、本発明の一実施例の動作について説明する。 The following describes the operation of an embodiment of the present invention. 基地局は、表示装置6において、図3の如く、移動局が所在する所要の一定範囲13を表示中の地図画面11上で設定する。 The base station, in the display device 6, as shown in FIG. 3, is set on the map screen 11 in the display the desired predetermined range 13 in which the mobile station is located. 次に、信号処理装置5において、緯度・経度の範囲データに変換した後、無線機4を経由して各移動局に対して、図2の地区エリアポーリングデータ9を送信する。 Then, the signal processing unit 5, after conversion to the range data of latitude and longitude, for each mobile station via the radio 4 to transmit the district area polling data 9 of FIG.
【0010】 [0010]
移動局は、基地局から受信した地区エリアポーリングデータ9を受信した後、処理装置2において、予め位置検出装置1にて把握している自車位置データと比較し、該当する範囲内に所在していれば、返送信号10を無線機3経由で基地局に送信する。 The mobile station, after receiving the district area polling data 9 received from the base station, the processing unit 2, as compared to the vehicle position data to know in advance the position detecting device 1, and located within the appropriate range long as it transmits a return signal 10 to the base station via the radio 3. 基地局では、無線機4、信号処理装置5で移動局からの返送信号10を受信処理し、表示装置6に表示する。 The base station, radio 4, receives and processes the return signal 10 from the mobile station by the signal processing unit 5, and displays it on the display device 6.
【0011】 [0011]
次に、図2を参照して、基地局から送信する地区エリアポーリング信号と、移動局から返送される返送信号との送信タイミングについて説明する。 Next, with reference to FIG. 2, and district areas polling signal transmitted from the base station, the transmission timing of the return signal returned from the mobile station will be described. 基地局が指定した範囲内に多数の移動局が存在したとき、移動局が送信する返送信号が互いに衝突しない様、移動局の返送信号送信タイミングをスロットに分割し、そのスロットに合せてランダムに送信する。 When a large number of mobile stations were present in a range designated by the BS, such that the return signal transmitted by the mobile station do not collide with each other, to divide the return signal transmission timing of the mobile station into the slot, the randomly to fit the slot Send. 図2の例では、15スロットに分割し、該当する移動局はA1〜A15のいずれかのタイミングで送信することにより、返送信号の衝突を少なくすることができる。 In the example of FIG. 2, is divided into 15 slots, the mobile station applicable by transmitting at any timing A1 to A15, it is possible to reduce the collision of the return signal.
【0012】 [0012]
本発明の実施例では、基地局で一定範囲14の緯度・経度データを移動局に送信する時に、図3に示すように、中心点15の緯度・経度データも同時に送信する。 In an embodiment of the present invention, when transmitting the latitude and longitude data of a range 14 to the mobile station by the base station, as shown in FIG. 3, the latitude and longitude data of the central point 15 is also transmitted simultaneously.
【0013】 [0013]
移動局では、一定範囲に存在する条件の他に、中心点から自車位置までの距離も算出する。 In the mobile station, in addition to the conditions present in a certain range, also calculated distance from the center point to the host vehicle position. この距離の条件を、返送信号を送信するタイミングに加える。 The conditions for this distance is added to the timing of transmitting the return signal. 例えば、中心点から近い車両は、スロットA1〜A5でのランダム化、中心点から中距離に所在する車両はスロットA6〜A10でのランダム化、中心点から遠距離である場合は、スロットA11〜A15でのランダム化というように複数段階に分けて送信タイミングのランダム化を行なうことで、移動局の返送信号の互いの衝突を減少させることができる。 For example, the vehicle close to the center point, if randomization slot A1 to A5, a vehicle located in the middle distance from the center point is a long distance from randomization, the center point of the slot A6~A10 the slot A11~ and so randomizing at A15 in plural stages by performing randomization of transmission timing, it is possible to reduce the mutual collision of the return signal of the mobile station.
【0014】 [0014]
【発明の効果】 【Effect of the invention】
従来の方式では、基地局で指定する一定範囲のエリア内に多数の移動局が存在した場合、移動局の返送信号の衝突が発生し、移動局の動態・位置を正確に把握することができなかった。 In the conventional system, when a large number of mobile stations were present in the area of ​​a certain range specified by the base station, the collision of the return signal of the mobile station occurs, it is possible to accurately grasp the dynamics and position of the mobile station There was no.
【0015】 [0015]
また、従来の方式では、一定範囲の中で中心点により近い車両と遠い車両に区別なく返送信号の衝突が発生し、基地局で最も必要とされる中心点に近い車両を正しく表示させることができなかった。 In the conventional method, is possible to display a vehicle collision and no return signal distinction far the vehicle is generated closer to the center point in a range, the vehicle close to the center point is most needed at the base station correctly could not.
【0016】 [0016]
本発明によれば、一定範囲のエリア内に多数の移動局が存在した場合でも、移動局の返送信号の衝突を低減させることができると共に、中心点に近い車両も表示させることができる効果を有する。 According to the present invention, even if a large number of mobile stations were present in the area of ​​the predetermined range, it is possible to reduce the collision of the return signal of the mobile station, the effect can also vehicle close to the center point is displayed a.
【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS
【図1】本発明の一実施例のシステム構成を示すブロック図。 1 is a block diagram showing the system configuration of an embodiment of the present invention.
【図2】本発明の一実施例を示すタイミングチャート。 Figure 2 is a timing chart showing one embodiment of the present invention.
【図3】本発明の一実施例による基地局の表示装置の表示を示す図。 It illustrates a display of a display device of a base station according to an embodiment of the present invention; FIG.
【符号の説明】 DESCRIPTION OF SYMBOLS
1:位置検出装置、2:処理装置、3:無線機、4:無線機、 1: position detecting device, 2: processor, 3: radios, 4: radio,
5:信号処理装置、6:表示装置、7:基地局送信タイミング、 5: the signal processing device, 6: display unit, 7: base station transmission timing,
8:移動局送信タイミング、9:地区エリアポーリング信号、10:返送信 号、11:表示装置画面、12:表示装置画面、13:一定範囲エリア、 8: the mobile station transmission timing, 9: District area polling signal, 10: return transmission signal, 11: display screen, 12: display screen, 13: a range of areas,
14:一定範囲エリア、15:中心点。 14: a range area, 15: center point.

Claims (1)

  1. 自局の車両番号情報と位置動態情報とを伝送する無線装置を備えた複数の移動局と、前記移動局からの情報を受信処理する基地局とを含む無線データ伝送システムにおいて、 In wireless data transmission system including a plurality of mobile stations having a radio device for transmitting the position kinetic information and vehicle number information of its own station, a base station for receiving and processing information from the mobile station,
    前記複数の移動局からの無線データの衝突を減少させるように構成した地区エリアポーリング方式。 District area polling method configured to reduce the collision of the radio data from the plurality of mobile stations.
JP2002250508A 2002-08-29 2002-08-29 Area polling system Pending JP2004096142A (en)

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US8045512B2 (en) 2005-10-27 2011-10-25 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US8098568B2 (en) 2000-09-13 2012-01-17 Qualcomm Incorporated Signaling method in an OFDM multiple access system
US8446892B2 (en) 2005-03-16 2013-05-21 Qualcomm Incorporated Channel structures for a quasi-orthogonal multiple-access communication system
US8462859B2 (en) 2005-06-01 2013-06-11 Qualcomm Incorporated Sphere decoding apparatus
US8477684B2 (en) 2005-10-27 2013-07-02 Qualcomm Incorporated Acknowledgement of control messages in a wireless communication system
US8565194B2 (en) 2005-10-27 2013-10-22 Qualcomm Incorporated Puncturing signaling channel for a wireless communication system
US8582548B2 (en) 2005-11-18 2013-11-12 Qualcomm Incorporated Frequency division multiple access schemes for wireless communication
US8582509B2 (en) 2005-10-27 2013-11-12 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
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US8611284B2 (en) 2005-05-31 2013-12-17 Qualcomm Incorporated Use of supplemental assignments to decrement resources
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US8477684B2 (en) 2005-10-27 2013-07-02 Qualcomm Incorporated Acknowledgement of control messages in a wireless communication system
US8842619B2 (en) 2005-10-27 2014-09-23 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US8045512B2 (en) 2005-10-27 2011-10-25 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US8693405B2 (en) 2005-10-27 2014-04-08 Qualcomm Incorporated SDMA resource management
US8582548B2 (en) 2005-11-18 2013-11-12 Qualcomm Incorporated Frequency division multiple access schemes for wireless communication
US8681764B2 (en) 2005-11-18 2014-03-25 Qualcomm Incorporated Frequency division multiple access schemes for wireless communication
US8831607B2 (en) 2006-01-05 2014-09-09 Qualcomm Incorporated Reverse link other sector communication

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