GB1261232A - Measuring device for safety distances between moving vehicles - Google Patents
Measuring device for safety distances between moving vehiclesInfo
- Publication number
- GB1261232A GB1261232A GB242469A GB242469A GB1261232A GB 1261232 A GB1261232 A GB 1261232A GB 242469 A GB242469 A GB 242469A GB 242469 A GB242469 A GB 242469A GB 1261232 A GB1261232 A GB 1261232A
- Authority
- GB
- United Kingdom
- Prior art keywords
- marks
- windscreen
- driver
- belt
- pair
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
- G01C3/22—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length at, near, or formed by the object
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
- B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Optical Distance (AREA)
Abstract
1,261,232. Indicating devices. J. S. PRATT. 15 Jan., 1969, No. 2424/69. Heading B7H. [Also in Division G2] A device for enabling the driver of a vehicle to judge the distance to a preceding vehicle comprises' a set of pairs of marks or an adjustably spaced single pair of marks situated in the field of vision of the driver, the marks of each pair being spaced in dependence on the speed so that reference points on the preceding vehicle when viewed through the device, or the image thereof reflected in the windscreen, give an indication of the safe intervening distance. The marks may constitute a grid fixed on the windscreen, Fig. 3, arranged in pairs about a centre line 12; if thick marks are used variation in size of the preceding vehicle may be taken into account, small vehicles being aligned with the inner edges of the marks of each pair and large vehicles with the outer edges. The driver's height, or distance from the windscreen, may be taken into account by angling the marks, Fig. 11, a tall driver or a driver sitting back from the windscreen using the top of the marks and a small driver or one sitting close to the windscreen, the bottom. In other embodiments (Figs. 6, 7, and 14) (not shown), an illuminated grid of marks may be mounted on the, dashboard housing so that its reflection in the windscreen appears in the driver's field of vision; the grid may be moved vertically (Fig. 7) or horizontally (Fig. 14), toward or away from the windscreen to allow for the driver's height or closeness to the windscreen. In another embodiment, Fig. 12, a single pair of converging marks 45, are provided on an illuminated chart 46 which is dispensed below an opaque belt 42 having a transverse slot 44, the slot allowing an image of a portion of the marks to appear in the windscreen. The belt, and thus the slot, is moved in accordance with the vehicle speed by means of a drive 39 from the speedometer which turns a drum 40 over which the belt is drawn. The chart may be moved manually horizontally toward or away from. the windscreen to correct for drivers at different distances therefrom.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB242469A GB1261232A (en) | 1969-01-15 | 1969-01-15 | Measuring device for safety distances between moving vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB242469A GB1261232A (en) | 1969-01-15 | 1969-01-15 | Measuring device for safety distances between moving vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1261232A true GB1261232A (en) | 1972-01-26 |
Family
ID=9739327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB242469A Expired GB1261232A (en) | 1969-01-15 | 1969-01-15 | Measuring device for safety distances between moving vehicles |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1261232A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0071656A1 (en) * | 1981-08-05 | 1983-02-16 | Reiner Doberschütz | Method and apparatus for measuring distances or heights |
FR2578797A1 (en) * | 1985-03-13 | 1986-09-19 | Orega Electro Mecanique | System for assisting automobile driving |
GB2216856A (en) * | 1988-04-08 | 1989-10-18 | Colin Dempsey | A device to aid drivers in estimating distance from a vehicle ahead |
GB2224475A (en) * | 1988-11-05 | 1990-05-09 | Frank Lister | Speed distance head-up display |
GB2240075A (en) * | 1990-01-18 | 1991-07-24 | Michael Westmoreland | Distance indicator for motor vehicles. |
GB2257674A (en) * | 1991-07-15 | 1993-01-20 | Brian William Paul Adams | Vehicle visor for estimating safe distances. |
FR2699668A1 (en) * | 1992-12-21 | 1994-06-24 | Mayer Laurence | Vehicle separation distance automatic estimation appts. |
GB2393698A (en) * | 2002-10-04 | 2004-04-07 | Charles Hannant | Device with stopping distance markings applicable to windscreen |
GB2395468A (en) * | 2002-10-09 | 2004-05-26 | B D I On U Ltd | Distance indicating device |
GB2408247A (en) * | 2003-11-19 | 2005-05-25 | Immobilienges Helmut Fischer | Device for estimating the distance of an object in front of a vehicle |
GB2419118A (en) * | 2004-10-13 | 2006-04-19 | Adrian James Locke | Traffic spacer using head-up display |
CN104742835A (en) * | 2013-12-27 | 2015-07-01 | 株式会社万都 | System for measuring vehicle distance and method thereof |
-
1969
- 1969-01-15 GB GB242469A patent/GB1261232A/en not_active Expired
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0071656A1 (en) * | 1981-08-05 | 1983-02-16 | Reiner Doberschütz | Method and apparatus for measuring distances or heights |
FR2578797A1 (en) * | 1985-03-13 | 1986-09-19 | Orega Electro Mecanique | System for assisting automobile driving |
GB2216856A (en) * | 1988-04-08 | 1989-10-18 | Colin Dempsey | A device to aid drivers in estimating distance from a vehicle ahead |
GB2224475A (en) * | 1988-11-05 | 1990-05-09 | Frank Lister | Speed distance head-up display |
GB2224475B (en) * | 1988-11-05 | 1992-09-30 | Frank Lister | Speed/distance driving sight. |
GB2240075A (en) * | 1990-01-18 | 1991-07-24 | Michael Westmoreland | Distance indicator for motor vehicles. |
GB2257674B (en) * | 1991-07-15 | 1995-03-08 | Brian William Paul Adams | A safe distance measuring visor |
GB2257674A (en) * | 1991-07-15 | 1993-01-20 | Brian William Paul Adams | Vehicle visor for estimating safe distances. |
FR2699668A1 (en) * | 1992-12-21 | 1994-06-24 | Mayer Laurence | Vehicle separation distance automatic estimation appts. |
GB2393698A (en) * | 2002-10-04 | 2004-04-07 | Charles Hannant | Device with stopping distance markings applicable to windscreen |
GB2393698B (en) * | 2002-10-04 | 2006-02-08 | Charles Hannant | Vehicle safety device |
GB2395468A (en) * | 2002-10-09 | 2004-05-26 | B D I On U Ltd | Distance indicating device |
GB2408247A (en) * | 2003-11-19 | 2005-05-25 | Immobilienges Helmut Fischer | Device for estimating the distance of an object in front of a vehicle |
GB2408247B (en) * | 2003-11-19 | 2008-01-02 | Immobilienges Helmut Fischer | Device and method for estimating a distance from a motor vehicle travelling in front or an obstacle |
GB2419118A (en) * | 2004-10-13 | 2006-04-19 | Adrian James Locke | Traffic spacer using head-up display |
CN104742835A (en) * | 2013-12-27 | 2015-07-01 | 株式会社万都 | System for measuring vehicle distance and method thereof |
DE102014009097A1 (en) * | 2013-12-27 | 2015-07-02 | Mando Corporation | System for measuring a vehicle spacing and method for this |
US9127941B2 (en) | 2013-12-27 | 2015-09-08 | Mando Corporation | System for measuring vehicle distance and method thereof |
CN104742835B (en) * | 2013-12-27 | 2017-03-15 | 株式会社万都 | For measuring the system and method for vehicular gap |
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