• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention discloses a blind spot warning system for a host vehicle (10) comprising a blind spot object detection system for detecting a target object within at least one host vehicle blind spot zone (1-8), the target object (30) comprising an internal interface arranged to receive a signal from an external source, and that the blind spot warning system is arranged to send a warning signal to the internal interface of the target object upon detection of the target object (30) within the blind spot zone of the at least one host vehicle ( 1-8). (Fig- 2)
    公开号:SE1000928A1
    申请号:SE1000928
    申请日:2010-01-19
    公开日:2011-07-20
    发明作者:Trent Victor；Pontus Larsson
    申请人:Volvo Technology Corp；
    IPC主号:
    专利说明:

    15 20 25 2 jekt knows that he is in the blind spot of a vehicle, the blind spot is easy to avoid, e.g. simply by passing the host vehicle or letting the host vehicle pass. What is more difficult, however, is to realize that you are at a blind spot.
    It has therefore been suggested in the state of the art to inform the target person that he / she is in the blind spot. According to patent application US 2006/082908, this can be done by attaching decals that warn of the blind spot in strategic places of the truck. In order to inform the target person about where the blind spot zone begins and ends, it is further suggested in the prior art that reflectors, which are intended to mark the beginning and end of the blind spot zone, be arranged on both sides of the decal.
    It is a disadvantage that a target person can not actually appreciate if he is in the blind spot or not just through the arrangement with the reflectors. A target person can therefore not intuitively understand where the blind spot zone begins and ends.
    From the state of the art, another system that informs target persons is known. U.S. Patent No. 6,133,851 discloses a light warning system for trucks to automatically warn drivers near a truck that they are either too close or within the blind spot of the truck. For this purpose, the inventive system comprises a plurality of sensors arranged at the blind angles of the truck for detecting an object entering the blind spot zone, as well as indicating devices which display a warning when detecting an object within the blind spot zone. zones.
    It is a disadvantage that the equipment with sensors and indicating devices is very expensive and since all necessary parts of the system must be electrically interconnected, it is often not possible to equip existing systems with the described system. An object of the present invention is therefore to provide a device and a system for blind spot warning which are both accurate and easy to apply to a vehicle.
    This object is achieved by a blind spot warning system according to claim 1.
    The invention is based on the idea of providing a blind spot warning device which is only observable to a target person from a certain point of view, in particular only if the target person is within the blind spot ZO of the vehicle.
    In this case, the blind spot warning device comprises a warning sign, symbol, text, or other device, mounted on the outside of a host vehicle, which is only noticeable to a target person when the target person is within the blind spot of the host vehicle. The warning would thus disappear when the target person is no longer within the blind spot of the host vehicle.
    The primary difference with the invention compared to existing static warning signs is that the present invention only warns when the target vehicle is in the blind spot zone. The advantage of this is twofold. Firstly, the fact that something changes in the warning device draws attention to the warning sign (or similar) and there is a greater chance that the driver of the target vehicle will actually observe the warning as opposed to if the warning were constantly visible. Second, by adding angle of view, drivers in the target vehicles gain a more intuitive understanding of where the blind spot zones begin and end.
    For example, suppose a truck is the host vehicle and a passenger car is the target object or vehicle. When the truck driver can see the car in the side mirrors of the truck, the warning sign is arranged so as not to be observable to the driver in the car. When the car enters the truck's blind spot on the side, the warning becomes noticeable to the driver, who then becomes aware of the potentially dangerous situation and can make an evasive maneuver (ie pass the truck or slow down until the warning no longer seems). Although the above example deals with the situation of a truck with a car on the side, the invention would also be applicable to other types of situations and host vehicles, such as buses, cars, construction machinery and trains.
    It should also be noted that a host vehicle can be equipped with more than one type of blind spot warning device. The attention of a target object can be advantageously stimulated and directed to the blind spot zone with various warnings, thereby ensuring that the target object is actually aware of the blind spot zone of the host vehicle.
    According to a first aspect of the invention, the blind spot warning device may be mounted on the outside of a host vehicle comprising a warning showing at least one blind spot of the host vehicle for a target object located outside the host vehicle, the warning being observable only for the target object depending on the target object's point of view of the host vehicle.
    According to a further preferred embodiment, the blind spot warning device is calibrated against the blind spot of the host vehicle so that the warning is only observable if the target object is within the zone of blind spot of the host vehicle.
    According to a further preferred embodiment, the device for blind spot warning is arranged to display at least two different images, whereby it depends on the point of view of the target object which image is observable.
    According to a further preferred embodiment, the point of view-dependent observability of the warning is based on lens technology, the device preferably comprising a plurality of, preferably semicircular, lenses, the lenses being arranged to direct light towards one of the images depending on the target person's point of view. According to a further preferred embodiment, the point of view-dependent observability of the warning is based on holographic technology, the point of view of the target person preferably determining light amplitude and light phase reflected by the blind spot warning device so that one of the images is displayed.
    These blind spot warning devices advantageously provide an opportunity to direct the target object's attention to the information, i.e. the warning, provided on them. This is due to the change in the appearance of the device when the target object enters or leaves the blind spot zone. In addition, if the information or warning is self-explanatory, e.g. by displaying the text “blind spot” when the target object is in the blind spot zone, the boundaries of the blind spot zone to the target object are communicated in an intuitive way.
    According to a further preferred embodiment, the device for blind angle warning is a passive decal which, preferably with adhesive, can be applied to the outside of the vehicle.
    According to a further preferred embodiment, the blind spot warning device is a monitor.
    According to a further preferred embodiment, the blind spot warning device is individually manufactured for each vehicle or for each vehicle type having substantially the same blind spot zones.
    According to a further preferred embodiment, the blind spot warning device comprises at least one light source, in particular a lamp or an LED (LED), and at least one shield to prevent the light from the light source from reaching zones other than the blind spot zone.
    According to a further preferred embodiment, the at least one shield is mechanically and / or electrically adjustable to calibrate the device against the blind spot limits of the host vehicle. 10 15 20 25 6 According to a further preferred embodiment, the calibration against the blind spot blinds of the host vehicle is performed once when mounting the host vehicle.
    According to a further preferred embodiment, the calibration is performed, manually or automatically, if a change in the blind spot of the host vehicle can be expected, in particular due to a change in the width of a lane in which the vehicle travels. Thereby the warning devices can be adjusted individually and continuously. 'to different driving situations.
    According to a further preferred embodiment, the vehicle is a combination of vehicle and trailer, in particular a combination of truck and trailer, and the calibration is performed, manually or automatically, if the combination of vehicle and trailer changes.
    According to a further aspect of the invention there is provided a dead angle warning system for a host vehicle comprising a blind spot object detection system for detecting a target object within the dead angle zone of the host vehicle and a dead angle warning device, the dead angle device being shown. Angle warning is controlled by the blind spot object detection system to display a warning when an object is detected to be within the blind spot zone of the host vehicle. The blind spot warning device according to the preferred embodiment is a mechanical device controlled by the blind spot object detection system to be displayed when detecting an object within the blind spot blind spot zone.
    According to a further preferred embodiment, the mechanical device is a mechanical arm with a warning sign which is stretched or sprung out upon detection of an object within the blind spot blind spot zone.
    According to a further aspect of the invention, there is provided a dead angle warning system for the host vehicle which comprises a dead angle object detection system for detecting a target object within the dead angle zone of the host vehicle, the target object comprising an internal interface arranged to receive a signal from an external source, and wherein the dead angle warning system is arranged to send a warning signal to the target object's internal interface upon detecting that the target object is within the blind spot dead zone of the host vehicle. This has the advantage that a driver can be informed directly with the help of e.g. a driver assistance system, which also reduces the possibility of ignoring the blind spot warning.
    According to a further preferred embodiment, the target object is a vehicle and the target object's internal interface is an information display, a warning light, a sound system and / or a driver assistance system, with which preferably an audible, visual and / or tactile warning can be given.
    According to a further preferred embodiment, the blind spot warning system is arranged to send a warning signal to the target object's interface by means of a wireless computer network for traffic safety, a global positioning system, a radio data system or the like.
    According to a further preferred embodiment, the object angle detection system comprises at least one sensor, in particular a camera and / or a radar sensor, for detecting an object.
    According to a further preferred embodiment, the vehicle is a truck, a car, a bus, a construction machine, an agricultural machine, a train, or a ship, or the vehicle is a combination of vehicle and trailer, such as a combination of truck and trailer, a combination of car and trailer, in particular a combination of car and caravan, a combination of bus and trailer, in particular a combination of bus and passenger car, or a construction or agricultural machine towing a trailer.
    According to a further preferred embodiment, the blind spot warning system comprises an LCD or plasma screen, or a lamp / LED (LED) or array of lamps / LEDs mounted on the outside of the host vehicle and a blind spot object detection system (BSODS). When a target object (another vehicle, a pedestrian, a cyclist, etc.) is detected by the BSODS system (using cameras, radar devices or other sensor equipment and associated processor units) within the vehicle's blind spot zone, a var sign on the screen or using the screen / | ampan (| the amps) / LED (LEDs) which informs the object of the dangerous situation.
    According to a further preferred embodiment, the blind spot warning system comprises a BSODS system as described in the previous paragraph, but the warning signal is sent directly to the target object's internal interface (information displays, warning lights, sound system, etc.) when the target object is within the host vehicle's dead. Angle. This can be accomplished using a wireless computer network for road safety, global positioning system (GPS) / differential GPS (DGPS), radio data system (RDS) or the like.
    According to a further preferred embodiment, the blind spot warning system comprises a mechanical device mounted on the outside of the host vehicle, such as a mechanical arm with a warning sign thereon which extends or springs out when the target object enters the blind spot zone and this is detected by BSODS system.
    According to a further preferred embodiment, the blind spot warning system comprises a passive, point of view dependent sticker mounted on the outside of the host vehicle, which is calibrated against the blind spot blind spot limits to display the blind spot warning sign when the target object is within the dead vehicle blind spot. This can preferably be accomplished with a printed decal or monitor based on lens technology. Two or more different images are intertwined and laminated or printed on a foil consisting of a number of semicircular lenses. The lenses direct light at one of the images depending on the point of view and consequently only one image is visible at a time.
    Instead of the lens technology described above, a hologram technology can also be used, where the “f | ip” effect (image exchange effect) is achieved by recording or synthesizing both the amplitude and the phase of light reflected by two or more objects. According to a further preferred embodiment, the blind spot warning system comprises a lamp / LED or an array of lamps / LEDs which have been made sight-dependent by means of small shields which prevent the light from reaching angles other than those which constitute blind angular zones. The shields could also be (electro-) mechanically adjustable to provide means for calibrating the warning zone or to adapt to different blind spots (which may be the result of varying lane widths).
    Additional advantages and preferred embodiments are defined in the claims, the figures and the description.
    In the following, the invention will be discussed with the aid of the accompanying figures. The description of these is regarded as an example of the principles of the invention and is not intended to limit the scope of the claims. The figures show: Fig. 1 a schematic illustration of the blind spot zones of a combination of truck and trailer, and Fig. 2 a schematic illustration of a preferred embodiment of the invention.
    Fig. 1 shows a schematic top view of a vehicle comprising a cab 12 and a trailer 14. A driver can usually observe his surroundings directly through the windscreen and side windows of the cab 12. Areas 16, 18 and 20 are then directly visible to the driver. The areas marked with the reference signs 22 and 24 are also visible to the driver, indirectly via mirrors (not shown). However, a number of blind spot zones 1 to 8 remain which are neither directly nor indirectly observable to the driver. Although extra mirrors can increase the driver's field of vision, this solution can have negative aerodynamic effects and also increase the complexity of the driver interface. Mirrors are also difficult to adjust and wide-angle mirrors only give distorted views of the surrounding traffic. 10 15 20 25 30 10 Active systems that detect and warn the driver of objects present in the blind spots can be another solution to the problem. However, this still does not solve the main problem as in many blind spot accidents is that the person in the blind spot (target person) is not aware that he can not be seen by the driver (host). It is easy to avoid being in the blind spots of a host vehicle simply by passing the host vehicle or by letting the host vehicle pass - what is more difficult, however, is realizing that you are at a blind spot.
    The present invention aims to solve the problem of blind spots by warning ambient road users when entering a blind spot zone by means of a warning device (sign or the like), mounted on the outside of the host vehicle, which is only observable depending on the target object. point of view.
    The blind spot warning device according to the invention preferably comprises a warning sign, symbol, text, or other device, mounted on the outside of a host vehicle, which is noticeable to a target only when the target is within the blind spot of the host vehicle. The warning would thus disappear when the target is no longer within the blind spot of the host vehicle.
    A visualization of how this would work is shown in Figure 2. In this figure, a truck 10 is the host vehicle and a passenger car 30 is the target vehicle. When the truck driver can see the car 30 in the truck's side mirrors 32 (left pane, figure 2), a warning sign 34, that is, the warning displayed on the blind spot warning device, cannot be seen by the driver in the car 30. When the car 30 enters the truck's blind spot zone 1; 2 on the side, the warning sign 34 becomes noticeable to the driver as shown in the right-hand box in fig. 2. The driver of the car then becomes aware of the potentially dangerous situation and can make an evasive maneuver (ie pass the truck or slow down until the warning is no longer visible).
    As mentioned above, blind spot accidents are very common and e.g. truck drivers encounter blind-spot situations on a daily basis. It is therefore of great interest to e.g. truck manufacturers and haulage companies to support any technology that seeks to solve the problem of blind spots. The embodiments described above involve fairly simple, passive technologies and are therefore inexpensive to develop and mass-produce, which would result in a low price for original equipment manufacturers (OEMs) and end customers. Such solutions also mean that the warning device could easily be integrated both in a vehicle's manufacturing situation and as a retrofit alternative. Although some of the embodiments described above are more technically complex and require a BSODS system to be installed in the target vehicle or supplied with the warning device, they provide a new and effective solution to the problem of blind spots. These embodiments are particularly suitable for newly manufactured vehicles:
    权利要求:
    Claims (1)
    [1]
    A blind spot warning system for a host vehicle (10), comprising a blind spot object detection system for detecting a target object within at least one host vehicle dead angle zone (1-8), characterized in that the target object (30) comprises an internal interface arranged to receive a signal from an external source, and in that the blind spot warning system is arranged to send a warning signal to the target object's internal interface upon detection. of the target object (30) within the blind spot zone (1-8) of the at least one host vehicle. A blind spot warning system according to claim 1, wherein the target object is a vehicle and the internal interface of the target object is an information display, a warning light, a sound system and / or a driver assistance system, preferably to provide an audible, visual and / or or tactile warning. A blind spot warning system according to claim 1 or 2, wherein the blind spot warning system is arranged to send a warning signal to the target object's interface by means of a wireless computer network for road safety, a global positioning system, a radio data system or the like. . A blind spot warning system according to any one of claims 1 to 3, wherein the blind spot object detection system comprises at least one sensor, in particular a camera and / or a radar sensor, for detecting an object. A blind spot warning system according to any one of claims 1 to 4, wherein the host vehicle is further equipped with at least one blind spot warning device which can be mounted on the outside of the host vehicle, comprising a warning (34) showing at least one blind spot ( 1-8) of the host vehicle (10) for a target object (30) located outside the host vehicle (10), wherein the warning (34) is only observable for the target object (30) depending on the point of view of the target object by the host vehicle (10). A blind spot warning system according to claim 5, wherein the device is calibrated against the dead angle blinds of the host vehicle so that the warning is only observable if the target object (30) is within the zone of the at least one blind spot (1-8) of the host vehicle (10). ). A blind spot warning system according to claim 5 or 6, wherein the blind spot warning device is arranged to display at least two different images, depending on the point of view of the target object which image is observable. A blind spot warning system according to any one of claims 5 to 7, wherein the point of view dependent observability of the blind spot warning device is based on lens technology. A blind spot warning system according to claim 8, wherein the blind spot warning device comprises a plurality of, preferably semicircular, lenses, the lenses being arranged to direct light towards one of the images depending on the point of view of the target object. A blind spot warning system according to any one of claims 5 to 7, wherein the point of view dependent observability of the blind spot warning device is based on holographic technology. A blind spot warning system according to claim 10, wherein the point of view of the target determines the light amplitude and light phase reflected by the blind spot warning device so that one of the images is displayed. A blind spot warning system according to any one of claims 5 to 11, wherein the blind spot warning device is a passive decal which, preferably with adhesive, can be applied to the outside of the vehicle. A blind spot warning system according to any one of claims 5 to 11, wherein the blind spot warning device is a monitor. A blind spot warning system according to any one of claims 5 to 13, wherein the blind spot warning device is individually manufactured for each vehicle or for each vehicle type. which have essentially the same blind spot zones. A blind spot warning system according to claim 5 or 6, wherein the blind spot warning device comprises at least one light source, in particular a lamp or an LED, and at least one shield to prevent the light from the light source from reaching others. zones than the blind spot- ZOflen. A blind spot warning system according to claim 15, wherein the at least one shield is mechanically and / or electrically adjustable to calibrate the blind spot warning device against the dead angle blinds of the host vehicle. A blind spot warning system according to claim 16, wherein the calibration against the blind spot of the host vehicle is performed once during assembly. Dead angle warning system according to claim 16 or 17, wherein the calibration is performed, manually or automatically, if a change in the blind spot of the host vehicle can be expected, in particular due to a change in the width of a lane in which the vehicle travels A blind spot warning system according to any one of claims 16 to 18, wherein the vehicle is a combination of vehicle and trailer, in particular a combination of truck and trailer, and wherein the calibration of the blind spot warning device is performed, manually or automatically, if the combination of vehicle and trailer changes. A blind spot warning system according to any one of claims 1 to 4, wherein the host vehicle is further equipped with a blind spot object detection system for detecting a target object within at least one host vehicle blind spot zone and a blind spot device. 21. 22. 23. 15 warning, wherein the blind spot warning device is controlled by the blind spot object detection system to display a warning when a target object (30) is detected to be within the blind spot zone of the at least one host vehicle ( 1-8), the blind spot warning device being a mechanical device controlled by the blind spot object detection system to be displayed upon detection of an object within the blind spot dead zone of at least one host vehicle. The blind spot warning system of claim 20, wherein the mechanical device is a mechanical arm with a warning sign that extends or springs upon detection of an object within the blind spot blind spot zone. A blind spot warning system according to any one of the preceding claims, wherein the vehicle is a truck, a car, a bus, a construction machine, an agricultural machine, a train, a ship, or a combination of vehicle and trailer. , such as a combination of lorry and trailer, a combination of car and trailer, in particular a combination of car and caravan, a combination of bus and trailer, in particular a combination of bus and passenger car, or a construction or land transport utility machine towing a trailer and / or wherein the target object (30) is another road user, such as another vehicle, a cyclist or a pedestrian. Vehicles having a blind spot warning system according to one of claims 1 to 22.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2013-07-09| NAV| Patent application has lapsed|
    优先权:
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    SE1000005|2010-01-19|BR112012017846A| BR112012017846A2|2010-01-19|2011-01-19|blind spot alert device and blind spot alert system|
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    PCT/SE2011/000006| WO2011090417A1|2010-01-19|2011-01-19|Blind spot warning device and blind spot warning system|
    US13/522,975| US20130169425A1|2010-01-19|2011-01-19|Blind spot warning device and blind spot warning system|
    EP20110734930| EP2525997A1|2010-01-19|2011-01-19|Blind spot warning device and blind spot warning system|
    JP2012549967A| JP2013517583A|2010-01-19|2011-01-19|Blind Spot Spot Warning Device and Blind Spot Spot Warning System|
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