JPS62142215A - Travel guide for vehicle - Google Patents
Travel guide for vehicleInfo
- Publication number
- JPS62142215A JPS62142215A JP28402585A JP28402585A JPS62142215A JP S62142215 A JPS62142215 A JP S62142215A JP 28402585 A JP28402585 A JP 28402585A JP 28402585 A JP28402585 A JP 28402585A JP S62142215 A JPS62142215 A JP S62142215A
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- Prior art keywords
- vehicle
- display
- gdop
- size
- map
- 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.)
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- Position Fixing By Use Of Radio Waves (AREA)
- Navigation (AREA)
- Traffic Control Systems (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、車両用走行誘導装置に関し、特に車両の現
在位置の検出精度に対応して現在位置を表示するマーキ
ングを変更づるようにした巾両用走行誘３９装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a travel guidance device for a vehicle, and in particular to a vehicle travel guidance device, in which a marking indicating the current position of the vehicle can be changed in accordance with the detection accuracy of the current position of the vehicle. This invention relates to a dual-use travel inducement 39 device.
（従来の技術）
車両走行誘導装置は、ＣＲＴなどの表示手段に車両が走
行している地域の道路地図とともに車両の走行軌跡や現
在位置などを表示し、車両を目（票地まで誤りなく誘導
する装置であって、例えば待間昭５８−７０１２５＠公
報にその一例が示されている。(Prior art) A vehicle travel guidance device displays the vehicle's travel trajectory and current position along with a road map of the area in which the vehicle is traveling on a display device such as a CRT, and guides the vehicle to the voting location without error. An example of this device is shown in Machima Sho 58-70125 @ Publication.
この種の装置では車両の現在位置を検出するために現在
地検出手段を有しており、例えば実公昭５８−２６２０
号公報に開示されているように、あるＩＱとなる地点か
らの車両の走（テ距離と方（ひとを検出し、車両の現在
位置を阜準とされた地点からの相対位置として把握する
手段が（ｊｌ供されている。This type of device has a current location detection means to detect the current location of the vehicle.
As disclosed in the publication, there is a method for detecting the distance and direction of a vehicle from a point with a certain IQ, and determining the current position of the vehicle as a relative position from a reference point. (jl is provided.
しかしながら、この現在地検出手段では、走行距離や方
位の測定誤差が累積され、精度が低下するという欠点が
ある。However, this current location detection means has the disadvantage that measurement errors in travel distance and direction accumulate, resulting in a decrease in accuracy.
そこで、衛星から発射される電波を受信して車両の現在
位置を、地球上の絶対位置（緯度、軽度）として求める
手段も提案されている。Therefore, a method has been proposed that receives radio waves emitted from satellites and determines the current position of the vehicle as an absolute position (latitude, degree) on the earth.
（発明が解決しようとする問題点）
上記した衛星を利用する現在地検出手段は、現在開発中
の全世界測位衛星システム（Ｇ １ｏｂａｌＰｏｓｉｔ
ｉｏｎｉｒ＋ｏ Ｓｙｓｔｅｍ 、以下ＧＰＳと略す
）と呼ばれるものであって、このシステムでは複数個の
人工衛星から発射される電波を受信して車両の現在位置
を最高精度が２０ｍ程度で測定することができるとされ
ている。(Problems to be Solved by the Invention) The current location detection means using the satellites described above is based on the Global Positioning Satellite System (GlobalPosit) currently under development.
ionir+o System (hereinafter abbreviated as GPS), this system is said to be able to measure the current position of a vehicle with a maximum accuracy of about 20 meters by receiving radio waves emitted from multiple artificial satellites. ing.
しかしながら、このような現在地検出手段の測定精度は
、衛星の位置、衛星の摂動、電離層の状態などによって
変動する。However, the measurement accuracy of such current location detection means varies depending on the position of the satellite, perturbation of the satellite, the state of the ionosphere, and the like.
従って、地図上に現在地をマーキング表示したとしても
、その地点がどの程度の精度で表示されているのか利用
者は知ることができず、車両を誘導するだめの情報が十
分に伝達できなかった。Therefore, even if the current location is marked and displayed on the map, the user cannot know with what precision the location is displayed, and sufficient information for guiding the vehicle cannot be transmitted.
この発明はこのような問題点に鑑みてなされたものであ
って、その目的とするところは、利用者に車両の現在位
置の測定精度をマーキング表示によって視認させ、車両
誘導のための情報を十分且つ適格に伝達できる車両用走
行誘導装置を提供することにある。This invention was made in view of these problems, and its purpose is to allow the user to visually confirm the measurement accuracy of the current position of the vehicle by displaying markings, and to provide sufficient information for vehicle guidance. Another object of the present invention is to provide a vehicle travel guidance device that can properly transmit information.
（問題点を解決するための手段）
上記目的を達成するために、この発明は車両用走行誘導
装置において、車両の走行誘導のための情報を表示する
表示手段（ａ ）と、この表示手段（ａ ）に表示する
少くとも地図を含む走行ｉＷに必要な情報を記憶してい
る記憶手段（ｂ ）と、衛星からの電波を受信して車両
の現在位置を検出する測位手段（Ｃ）を少くとも有する
現在地検出手段（ｄ ）と、この測位手段（Ｃ’）の測
距誤差を検出する劣化係数検出手段（ｅ ）と、前記表
示手段（ａ ）に前記現在地検出手段（ｄ ）で検出し
た現在位置をマーキング表示する現在地表示手段＜ｆ
）と、このマーキング表示を前記劣化係数検出手段（ｅ
）の劣化係数に対応させて可変とする表示制御手段（
ｇ＞とからなる。(Means for Solving the Problems) In order to achieve the above object, the present invention provides a vehicle travel guidance device including a display means (a) for displaying information for vehicle travel guidance, and a display means (a) for displaying information for vehicle travel guidance. The storage means (b) that stores information necessary for the driving iW including at least the map displayed in a) and the positioning means (C) that receives radio waves from satellites and detects the current position of the vehicle are reduced. a current position detection means (d) having both a current position detection means (d), a deterioration coefficient detection means (e) for detecting a distance measurement error of this positioning means (C'), and a display means (a) for detecting the current position detected by the current position detection means (d). Current location display means for marking and displaying current location <f
), and this marking display is detected by the deterioration coefficient detection means (e
display control means that is variable in accordance with the deterioration coefficient of
g>.
ここで、上記劣化係数（Ｇ ｅｏｍｅｔｒｉｃａｌ
Ｄ ｉ ｔｕｔｉｏｎ Ｑｒ ｐｒｅｃｉｓｉｏｎ
略してＧＤＯＰと呼ばれる）は、現在位置を測定する際
の利用衛星と車両との間の幾何学的関数で決まる測定誤
差の増大を表わす係数である。Here, the above deterioration coefficient (G eometrical
Di tution Qr precision
GDOP (abbreviated as GDOP) is a coefficient representing an increase in measurement error determined by a geometric function between the satellite used and the vehicle when measuring the current position.
また、マーキング表示を変化させる態様としては、例え
ば表示そのものの大きさをＧＤＯＰに対応させて変更す
るとか、あるいは表示手段としてカラーのＣＲＴを用い
マーキングの色を変えるとか、さらにはこれらの可変手
段の組合せや、マーキングの形状を変更するなどの各種
の手段が考えられるが、車両の走行中に一見して視認で
きるものが好ましい。In addition, ways to change the marking display include, for example, changing the size of the display itself in accordance with the GDOP, or using a color CRT as a display means and changing the color of the marking, and furthermore, changing the color of the marking by using a color CRT as a display means. Although various means such as combinations or changing the shape of the markings are possible, it is preferable to use one that can be visually recognized at a glance while the vehicle is running.
（作 用）
」上記構成の車両用走行誘導装置によれば、車両の現在
位置を示すマーキング表示が、現在地検出手段の検出粘
度をも示ずことになり、利用者はこれを視認によって知
得し、例えば車両がこの装置によって誘導されていて、
いずれの方向に曲る交差点が近ずいた場合、マーキング
表示の大きさにその交差点が含まれるようになれば、マ
ーキング表示の大きさに対応した精度範囲内に該当交差
点があることを確認できる。(Function) According to the vehicle travel guidance system having the above configuration, the marking display indicating the current position of the vehicle does not indicate the viscosity detected by the current position detecting means, and the user cannot visually recognize this. For example, if a vehicle is being guided by this device,
When an intersection that curves in any direction approaches, if the intersection is included in the size of the marking display, it can be confirmed that the intersection is within the accuracy range corresponding to the size of the marking display.
（実 施 例）
以下、この発明の好適な実施例について添ｔト１図面を
参照にして詳細に説明する。(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
第２図から第５図はこの発明に係る車両用走行誘導装置
の一実施例を示している。FIGS. 2 to 5 show an embodiment of a vehicle travel guidance device according to the present invention.
同図に示す走行誘導装置は、第２図にその全体構成を示
ずように、表示手段１０と、記憶手段１２と、現在地検
出手段１４および制御手段１Ｇとから概略構成されてい
る。The travel guidance device shown in the figure is generally composed of a display means 10, a storage means 12, a current position detection means 14, and a control means 1G, as the overall structure is not shown in FIG.
上記表示手段１０は、車両の走行誘導のための情報、例
えば現在車両が走行している地域の地図や、地図上に設
定される誘導目標地、現在地検出手段１４で求めた現在
地などを表示するものであって、一般的にはモノクロあ
るいはカラーのＣＲＴ、液晶表示素子、プラズマディス
プレー、エレクトロルミネッレンスなどが用いられ、表
示される情報は上記制御手段１６によって制衛１される
。The display means 10 displays information for guiding the vehicle, such as a map of the area where the vehicle is currently traveling, a guidance target location set on the map, and the current location determined by the current location detection means 14. Generally, monochrome or color CRT, liquid crystal display, plasma display, electroluminescence, etc. are used, and the displayed information is controlled by the control means 16.
上記記憶手段１２は、少くとも地図を含む走行誘導に必
要な情報を記憶しており、例えばＣＤ−ＲＯＭあるいは
磁気テープなどが使用され、特にＣＤ−ＲＯＭは記憶容
量が大きく、コンパクトでしかもアクセスタイムが短い
ので車両搭載用の記憶手段として適しており、記憶情報
は地図の他かに車両の始業点検手順やタイヤ交換手順な
どを記憶させておいてもよい。The storage means 12 stores information necessary for driving guidance, including at least a map, and uses, for example, a CD-ROM or a magnetic tape. In particular, a CD-ROM has a large storage capacity, is compact, and has a short access time. Because of its short length, it is suitable as a storage means to be mounted on a vehicle, and in addition to the map, the stored information may also include vehicle start-up inspection procedures, tire replacement procedures, etc.
記憶手段１２からの情報の取出しは、コンパクトディス
クやテープなどの記録媒体を再生装置に装着し、再生装
置を制御手段１６でコントロールすることで行なわれる
。Information is retrieved from the storage means 12 by loading a recording medium such as a compact disk or tape into a reproducing device and controlling the reproducing device by the control means 16.
上記現在地検出手段１４は、衛星からの電波信号を受信
して車両の現在位置を検出する測位システム（ＧＰＳ）
の受信器１４ａを少くとも備えており、これとともに公
知の地磁気によって現在位置を検出するセンサーを併設
してもよい。The current location detection means 14 is a positioning system (GPS) that detects the current location of the vehicle by receiving radio signals from satellites.
The receiver 14a is provided with at least a receiver 14a, and a known sensor for detecting the current position using geomagnetism may also be provided.
以下にＧＰＳによる車両の現在位置を検出する原理につ
いて簡単に説明する。The principle of detecting the current position of a vehicle using GPS will be briefly explained below.
ＧＰＳは第３図に模式的に示すように、地球Ｅ上に適当
な間隔で分散配置された複数のアンテナＡ、〜Ａ４と、
複数の衛星８１〜Ｓ４と、利用者Ｐとによって構成され
、各衛星５Ｉ−８４はアンテナＡｌ”−Ａ＋を介して制
御局ＣによってＬｌｌ ｉｌｌされる。また、各衛星８
１〜Ｓ４にはアンテナＡ。As schematically shown in Fig. 3, the GPS uses a plurality of antennas A, ~A4 distributed at appropriate intervals on the earth E.
It is composed of a plurality of satellites 81 to S4 and a user P, and each satellite 5I-84 is controlled by a control station C via an antenna Al''-A+.
Antenna A is provided for 1 to S4.
〜Ａ４からの（ｉ号を受ける受信器と、利用者Ｐに向け
て各種の情報信号を発射する発信器が、また利用者Ｐは
衛星Ｓ、〜Ｓ４からの信号を受ける受信器をそれぞれ備
えている。A receiver for receiving signals (i) from ~A4 and a transmitter for emitting various information signals toward user P, and user P is equipped with a receiver for receiving signals from satellites S and ~S4. ing.
ここで、電波の送信点と受信点に完全に同期した時計が
あって、送信信号がその時計で制御されていたとすると
、受信点でその受信のタイミングを測定すれば送受信点
間の電波の伝播時間を求めることができ、それに光速度
を乗ずれば送受信点間の距離を求めることができる。今
、利用者Ｐの視野く受信可能領域）に３個の衛星Ｓ１，
８２ 。Here, if there is a clock that is completely synchronized at the transmitting point and receiving point of radio waves, and the transmitted signal is controlled by the clock, then if the timing of reception at the receiving point is measured, the propagation of radio waves between the transmitting and receiving points can be measured. You can find the time, and by multiplying it by the speed of light, you can find the distance between the transmitting and receiving points. Now, there are three satellites S1,
82.
Ｓ３があり、それぞれの衛星Ｓ７．Ｓ２ 、Ｓ３が互い
に同期した時計によって測距信号を送信しており、且つ
各衛星８１〜Ｓ３の受信時の位置が正確に求められてい
たとする。受信点Ｐでこれら信号の受信時間を測定すれ
ば各衛星Ｓ１．Ｓ２．Ｓ３と受信点Ｐ間の距離が求めら
れ、利用者Ｐの位置は各衛星Ｓ１．Ｓ２ 、Ｓ３を中心
とする３つの球面の交点として求めることができる。S3, and each satellite S7. It is assumed that S2 and S3 are transmitting ranging signals using clocks synchronized with each other, and that the positions of each of the satellites 81 to S3 at the time of reception are accurately determined. If the reception time of these signals is measured at the reception point P, each satellite S1. S2. The distance between S3 and the receiving point P is determined, and the position of the user P is determined from each satellite S1. It can be determined as the intersection of three spherical surfaces centered on S2 and S3.
しかしながら、現実には送信点と受信点との時計を完全
に同期させることが難しく、受信信号の遅延による誤差
が生ずる。またこのシステムでは前述のように衛星８１
〜Ｓ４の位置誤差、電離層の状態などによる測距誤差を
含み測定精度が変動するため、衛星８１〜Ｓ４から利用
者Ｐに発射される信号には、測距誤差の大ぎさを示す係
数である劣化係数（ＧＤＯＰ）のデータが含まれている
。However, in reality, it is difficult to completely synchronize the clocks at the transmitting point and the receiving point, and errors occur due to delays in the received signals. Also, in this system, as mentioned above, the satellite 81
Since the measurement accuracy fluctuates, including the distance measurement error due to the position error of S4, the state of the ionosphere, etc., the signals emitted from the satellites 81 to S4 to the user P include a coefficient indicating the magnitude of the distance measurement error. Contains data on deterioration coefficient (GDOP).
以下に示す第１表は公表されている測距誤差の種類と大
きさの一例であって、これらの数値にＧＤＯＰを乗する
だけで、利用者が実際にこのシステムを利用している場
合の位置検出精度が計咋できるようになっている。Table 1 below is an example of the types and sizes of distance measurement errors that have been published, and by simply multiplying these numbers by GDP, you can calculate the difference when a user is actually using this system. The position detection accuracy can be measured.
第 １ 表
利用者装置の測距誤差の種類と大きさ
一方、上記制御手段１６は、この実施例ではいわゆるマ
イクロコンピュータから構成されており、上記表示手段
１０．記憶手段１２．現在地検出手段１４とそれぞれ接
続される入出力インターフェース１６ａと、リードオン
リーメモリー（ＲＯＭ ）１６ｂに記憶された手順に従
って入出力インターフェース１６ａを介して現在地検出
手段１４がらの信号を受けて演篠し、その結果に基づい
て記憶手段１２を制御して、その記憶情報例えば地図上
に現住地を表示するなどの処理を行なうＣＰＵ １６Ｃ
と、取り込んだデータを一時的に記憶しておくランダム
アクセスメモリー（ＲＡＭ）１６ｄとから構成されてい
る。Table 1: Types and magnitudes of distance measurement errors of user devices On the other hand, the control means 16 is comprised of a so-called microcomputer in this embodiment, and the display means 10. Storage means 12. The input/output interface 16a connected to the current location detecting means 14 receives signals from the current location detecting means 14 via the input/output interface 16a according to the procedures stored in the read-only memory (ROM) 16b, and performs the operation. A CPU 16C that controls the storage means 12 based on the results and performs processing such as displaying the stored information, for example, the current place of residence on a map.
and a random access memory (RAM) 16d for temporarily storing captured data.
特に、この実施例では制御手段１６によって、上述した
ＧＰＳからのＧＤＯＰ値に対応させて表示手段１０に表
示する現在位置のマーキング表示の大きさを可変とする
ように構成されている。In particular, in this embodiment, the control means 16 is configured to vary the size of the marking display of the current position displayed on the display means 10 in correspondence with the above-mentioned GDOP value from the GPS.
マーキング表示の大きさＤは、以下のようにして決定さ
れる。なお、この実施例では表示手段１０としてドツト
表示のＣＲＴを用いる場合について説明する。The size D of the marking display is determined as follows. In this embodiment, a case will be explained in which a dot display CRT is used as the display means 10.
まず、マーキング表示をする地図の縮尺に対するマーク
の大きさＰａを次式によって求める。First, the size Pa of the mark relative to the scale of the map on which the marking is displayed is determined by the following equation.
Ｐａｍｍ＝ＧＤＯＰＸ２０Ｘ１０’／Ｓ ・ （１）
式中のＳは地図の縮尺であって、２０Ｘ１０３はＧＰＳ
システムで検出できる最高精度の値＜２０ＩＩｌ）であ
る。Pamm=GDOPX20X10'/S ・ (1)
S in the formula is the scale of the map, and 20X103 is the GPS
The highest precision value that can be detected by the system is <20IIl).
そして、上記式で求めたＰａを表示手段１０の最小ドツ
トの大きさｄｏ（ＣＲＴの種類によっても異なるが一般
的には０．４ｍｍ程度）で割ったものの整数ｆ＋ＩＩを
表示手段１０上に示すマーキング表示の大きさＤとブる
。Then, the integer f+II obtained by dividing Pa obtained by the above formula by the minimum dot size do of the display means 10 (generally about 0.4 mm, although it varies depending on the type of CRT) is marked on the display means 10. The display size is D.
例えば、令弟４図に示すように地図の縮尺が１／２．５
万であってＧＤＯＰの値が５とするとＰｏ ＝ ５Ｘ
２０Ｘ１０’ ／ ２，５Ｘ１０’ ＝４ｍｎ＋となり
、Ｄ＝ Ｉ ＮＴ （４／ ０．４） ＝１０（ドラ１
へ） ・・・（２）となる。For example, as shown in Figure 4, the scale of the map is 1/2.5.
10,000 and the value of GDP is 5, then Po = 5X
20X10' / 2,5X10' = 4mn+, and D = I NT (4/ 0.4) = 10 (Dragon 1
(to) ...(2).
つまり、以上のようにして表示マーキングの大きさを決
めれば、ＤＰＳによる現在位置の検出精度が良好な場合
は、ＧＤＯＰ値が小さくなるためマーキング表示の大き
さＤは小さくなる一方、検出精度が悪くなるとＧＤＯＰ
値が大きくなってマーキング表示の大きさＤは大きくな
る。In other words, if the size of the display marking is determined as described above, if the detection accuracy of the current position by DPS is good, the GDOP value will be small, so the marking display size D will be small, but the detection accuracy will be poor. Then GDOP
As the value increases, the size D of the marking display increases.
これにより利用者は°現在地検出手段１４の検出精度を
簡単且つ確実に視認できることになる。This allows the user to easily and reliably visually confirm the detection accuracy of the current location detection means 14.
上述したマーキング表示を可変とする制御手段１６の処
理手順のフローチャートを第５図に示している。FIG. 5 shows a flow chart of the processing procedure of the control means 16 for making the above-mentioned marking display variable.
現在位置表示マーキングの大きさを決定するルーチンが
スタートとすると（ステップ■）、まず、ステップ■で
現在地検出手段１４のＧＰＳ受信器１４ａが作動され、
ｌ！ｔｉ星からの電波信号を受けて車両の現在位置が検
出されるとともに、ステップ■で同じように衛星からの
信号によってＧＤＯＰ値が検出される。When the routine for determining the size of the current position display marking starts (step ■), the GPS receiver 14a of the current position detection means 14 is activated in step ■.
l! The current position of the vehicle is detected by receiving a radio wave signal from the ti star, and the GDOP value is similarly detected by a signal from a satellite in step (3).
次いで、ステップ■で上記計ｑ式（１）によってＰｏが
計口され、ステップ■でＰＯの噴にヰづい゛Ｃ表示マー
キングのドツトａＤが計算され、この５ｉ Ｒ噴に基づ
いてステップ■で検出した現在地を、ドラｌ−ａ Ｄで
表示してステップ■でメインルーチンに戻る。Next, in step (2), Po is calculated using the above equation (1), and in step (2), the dot aD of the C display marking is calculated based on the PO jet, and based on this 5i R jet, it is detected in step (2). The current location is displayed on the drive l-aD, and the process returns to the main routine at step (2).
なお、マーキング表示を例えばＧ Ｄ ＯＰ ｆｉｎに
対して表示色を可変とづ゛る場合には、ＧＤＯＰ町に対
応づる色を予め定めるとともに、これを制御手段１６の
ＲＡＭ１６ｄに記憶させておき、第４図のフローでＧ
Ｉ） ＯＰ ｆｆｌを検出した際に、対応した色を読み
出し表示手段１０に着色表示すればよい。In addition, if the display color of the marking display is variable for GDOP fin, for example, a color corresponding to GDOP town is determined in advance, and this is stored in the RAM 16d of the control means 16. G according to the flow shown in Figure 4.
I) When OP ffl is detected, the corresponding color may be read out and displayed on the display means 10 in color.
また、マーキング表示を形状で可変とする場合にし同じ
ようなブ［１グラムを準備しておくことで対応できる。In addition, if the marking display is to be made variable depending on the shape, it can be handled by preparing a similar block.
（発明の効宋）
以上、実施例で詳細に説明したように、この発明に係る
重両用走行誘導装置では、車両の現在位置を検出したｖ
Ｊ度に対応させて可変表示することにより、重両が表示
された位置からとの桿度の範囲内にいるかが認識できる
とともに、ＧＰＳの受信状態も７５１ 認できることに
なる。(Effects of the Invention) As described above in detail in the embodiments, the heavy-duty travel guidance device according to the present invention detects the current position of the vehicle.
By variably displaying the information in accordance with J degrees, it is possible to recognize whether the vehicle is within the radius range from the displayed position, and the GPS reception status can also be recognized.
第１図は本発明装置の構成を示すブロック図、第２図は
本発明装置の一実施例の全体１，１．ｊ成を示ηブロッ
ク図、第３図はＧＰＳシステムの囲路説明図、第４図は
本発明装置のマーキング表示の一例を示づ説明図、第５
図は制０１１手段の処理手順の一例を示すフローチャー
トである。
１０・・・・・・表示手段 １２・・・・・・記憶
手段１４・・・・・・現在地検出手段
１６・・・・・・制御手段
特許出願人 マツダ 株式会社同
パイオニア株式会社代 理 人
弁理士 −色叶幅間
弁理士 松本雅利竺 １ 図
（Ｃ）
第５図FIG. 1 is a block diagram showing the configuration of the apparatus of the present invention, and FIG. 2 is an overall diagram of one embodiment of the apparatus of the present invention. Fig. 3 is an explanatory diagram of the enclosure of the GPS system, Fig. 4 is an explanatory diagram showing an example of marking display of the device of the present invention, and Fig.
The figure is a flowchart showing an example of the processing procedure of the control means. 10...Display means 12...Storage means 14...Current location detection means 16...Control means patent applicant Mazda Co., Ltd.
Representative of Pioneer Co., Ltd.
Patent Attorney - Iroha Hakuma
Patent Attorney Masatoshi Matsumoto 1 Figure (C) Figure 5
Claims (1)
該表示手段に表示する少くとも地図を含む走行誘導に必
要な情報を記憶している記憶手段と、衛星からの電波を
受信して車両の現在位置を検出する測位手段を少くとも
有する現在地検出手段と、該測位手段の測距誤差を検出
する劣化係数検出手段と、該表示手段に該現在地検出手
段で検出した現在位置をマーキング表示する現在地表示
手段と、該マーキング表示を該劣化係数検出手段の劣化
係数に対応させて可変とする表示制御手段とからなるこ
とを特徴とする車両用走行誘導装置。a display means for displaying information for vehicle travel guidance;
Current location detection means having at least a storage means for storing information necessary for driving guidance including at least a map to be displayed on the display means, and a positioning means for detecting the current position of the vehicle by receiving radio waves from a satellite. a deterioration coefficient detection means for detecting a distance measurement error of the positioning means; a current location display means for marking and displaying the current position detected by the current location detection means on the display means; A vehicle travel guidance device comprising: a display control means that is variable in accordance with a deterioration coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28402585A JPH0613977B2 (en) | 1985-12-17 | 1985-12-17 | Vehicle guidance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28402585A JPH0613977B2 (en) | 1985-12-17 | 1985-12-17 | Vehicle guidance device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62142215A true JPS62142215A (en) | 1987-06-25 |
| JPH0613977B2 JPH0613977B2 (en) | 1994-02-23 |
Family
ID=17673329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28402585A Expired - Lifetime JPH0613977B2 (en) | 1985-12-17 | 1985-12-17 | Vehicle guidance device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0613977B2 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0264756A2 (en) * | 1986-10-13 | 1988-04-27 | Hitachi, Ltd. | Position measuring method with satellite |
| JPH034189A (en) * | 1989-05-31 | 1991-01-10 | Furuno Electric Co Ltd | Display device of measured position |
| JPH0545438A (en) * | 1991-08-14 | 1993-02-23 | Sharp Corp | Gps position measuring apparatus |
| EP0598518A1 (en) * | 1992-11-04 | 1994-05-25 | Pioneer Electronic Corporation | Method of calculating GPS measuring deviation and navigation system using same |
| JP2009526502A (en) * | 2006-02-10 | 2009-07-16 | オートデスク，インコーポレイテッド | Reverse geocoding |
| USRE42927E1 (en) | 1998-02-13 | 2011-11-15 | Apple Inc. | System and method for obtaining and using location specific information |
| US8385964B2 (en) | 2005-04-04 | 2013-02-26 | Xone, Inc. | Methods and apparatuses for geospatial-based sharing of information by multiple devices |
| US9066199B2 (en) | 2007-06-28 | 2015-06-23 | Apple Inc. | Location-aware mobile device |
| US9702709B2 (en) | 2007-06-28 | 2017-07-11 | Apple Inc. | Disfavored route progressions or locations |
| US9702721B2 (en) | 2008-05-12 | 2017-07-11 | Apple Inc. | Map service with network-based query for search |
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| US9979776B2 (en) | 2009-05-01 | 2018-05-22 | Apple Inc. | Remotely locating and commanding a mobile device |
| US10368199B2 (en) | 2008-06-30 | 2019-07-30 | Apple Inc. | Location sharing |
-
1985
- 1985-12-17 JP JP28402585A patent/JPH0613977B2/en not_active Expired - Lifetime
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|---|---|---|---|---|
| EP0264756A2 (en) * | 1986-10-13 | 1988-04-27 | Hitachi, Ltd. | Position measuring method with satellite |
| EP0264756A3 (en) * | 1986-10-13 | 1990-02-28 | Hitachi, Ltd. | Position measuring method with satellite |
| JPH034189A (en) * | 1989-05-31 | 1991-01-10 | Furuno Electric Co Ltd | Display device of measured position |
| JPH0545438A (en) * | 1991-08-14 | 1993-02-23 | Sharp Corp | Gps position measuring apparatus |
| EP0598518A1 (en) * | 1992-11-04 | 1994-05-25 | Pioneer Electronic Corporation | Method of calculating GPS measuring deviation and navigation system using same |
| USRE42927E1 (en) | 1998-02-13 | 2011-11-15 | Apple Inc. | System and method for obtaining and using location specific information |
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| US9584960B1 (en) | 2005-04-04 | 2017-02-28 | X One, Inc. | Rendez vous management using mobile phones or other mobile devices |
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| US9736618B1 (en) | 2005-04-04 | 2017-08-15 | X One, Inc. | Techniques for sharing relative position between mobile devices |
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| US8385964B2 (en) | 2005-04-04 | 2013-02-26 | Xone, Inc. | Methods and apparatuses for geospatial-based sharing of information by multiple devices |
| US10791414B2 (en) | 2005-04-04 | 2020-09-29 | X One, Inc. | Location sharing for commercial and proprietary content applications |
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| US9031581B1 (en) | 2005-04-04 | 2015-05-12 | X One, Inc. | Apparatus and method for obtaining content on a cellular wireless device based on proximity to other wireless devices |
| US10149092B1 (en) | 2005-04-04 | 2018-12-04 | X One, Inc. | Location sharing service between GPS-enabled wireless devices, with shared target location exchange |
| US10165059B2 (en) | 2005-04-04 | 2018-12-25 | X One, Inc. | Methods, systems and apparatuses for the formation and tracking of location sharing groups |
| US10200811B1 (en) | 2005-04-04 | 2019-02-05 | X One, Inc. | Map presentation on cellular device showing positions of multiple other wireless device users |
| US10299071B2 (en) | 2005-04-04 | 2019-05-21 | X One, Inc. | Server-implemented methods and systems for sharing location amongst web-enabled cell phones |
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| US10341808B2 (en) | 2005-04-04 | 2019-07-02 | X One, Inc. | Location sharing for commercial and proprietary content applications |
| US10341809B2 (en) | 2005-04-04 | 2019-07-02 | X One, Inc. | Location sharing with facilitated meeting point definition |
| JP2009526502A (en) * | 2006-02-10 | 2009-07-16 | オートデスク，インコーポレイテッド | Reverse geocoding |
| US10064158B2 (en) | 2007-06-28 | 2018-08-28 | Apple Inc. | Location aware mobile device |
| US11419092B2 (en) | 2007-06-28 | 2022-08-16 | Apple Inc. | Location-aware mobile device |
| US10508921B2 (en) | 2007-06-28 | 2019-12-17 | Apple Inc. | Location based tracking |
| US10412703B2 (en) | 2007-06-28 | 2019-09-10 | Apple Inc. | Location-aware mobile device |
| US10458800B2 (en) | 2007-06-28 | 2019-10-29 | Apple Inc. | Disfavored route progressions or locations |
| US9066199B2 (en) | 2007-06-28 | 2015-06-23 | Apple Inc. | Location-aware mobile device |
| US11665665B2 (en) | 2007-06-28 | 2023-05-30 | Apple Inc. | Location-aware mobile device |
| US9891055B2 (en) | 2007-06-28 | 2018-02-13 | Apple Inc. | Location based tracking |
| US10952180B2 (en) | 2007-06-28 | 2021-03-16 | Apple Inc. | Location-aware mobile device |
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| US9702709B2 (en) | 2007-06-28 | 2017-07-11 | Apple Inc. | Disfavored route progressions or locations |
| US9702721B2 (en) | 2008-05-12 | 2017-07-11 | Apple Inc. | Map service with network-based query for search |
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| US9979776B2 (en) | 2009-05-01 | 2018-05-22 | Apple Inc. | Remotely locating and commanding a mobile device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0613977B2 (en) | 1994-02-23 |
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