CN114999213B - Ground traffic guiding device and ground traffic auxiliary system - Google Patents
Ground traffic guiding device and ground traffic auxiliary system Download PDFInfo
- Publication number
- CN114999213B CN114999213B CN202210582161.0A CN202210582161A CN114999213B CN 114999213 B CN114999213 B CN 114999213B CN 202210582161 A CN202210582161 A CN 202210582161A CN 114999213 B CN114999213 B CN 114999213B
- Authority
- CN
- China
- Prior art keywords
- ground traffic
- hollowed
- information
- frame
- traffic guiding
- 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.)
- Active
Links
- 239000000463 material Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 239000012780 transparent material Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 14
- 238000003384 imaging method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000012634 optical imaging Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000007667 floating Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
- G08G1/141—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces
- G08G1/142—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces external to the vehicles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
Abstract
The embodiment of the application relates to the technical field of ground traffic, in particular to a ground traffic guiding device and a ground traffic auxiliary system. The ground traffic guiding apparatus includes: a device housing; an information display apparatus provided inside the device case, the information display apparatus configured to display guidance information for guiding a vehicle; and the projection plate is arranged at the top of the device shell and is used for projecting information displayed by the information display equipment to the upper part of the projection plate so as to form a guide information image.
Description
Technical Field
The application relates to the technical field of ground traffic, in particular to a ground traffic guiding device and a ground traffic auxiliary system.
Background
In road traffic systems, intersections are important components of the overall road traffic system, playing a critical role in the joining of road traffic. However, since the intersections are zones where various traffic flows travel through each other and have direct collision, and have high aggregation and collision, the intersections are traffic bottlenecks of the whole road network, whether they are intersections of urban roads or intersections of parking lots.
Taking a parking lot as an example, at present, most of intersections of the parking lot are not provided with controllable signals to command vehicles and pedestrians, drivers often find parking spaces in a 'free-of-sight' mode, and in some busy periods, the time for finding the parking spaces may take 5 minutes as short as long as 20 minutes. In addition, due to the large area of some parking lots, especially those of large malls, it is often difficult to quickly find the nearest parking area to the destination, involving the ABCDE seat. In summary, existing road intersections lack an effective means of guiding vehicles to quickly reach their destination.
Disclosure of Invention
An object of an embodiment of the present application is to provide a ground traffic guiding device and a ground traffic assisting system, so as to effectively guide a driver, so that the driver can go to a destination faster. The specific technical scheme is as follows:
A first aspect of an embodiment of the present application provides a ground traffic guiding apparatus, including: a device housing; an information display apparatus provided inside the device case, the information display apparatus configured to display guidance information for guiding a vehicle; and the projection plate is arranged at the top of the device shell and is used for projecting information displayed by the information display equipment to the upper part of the projection plate so as to form a guide information image.
The ground traffic guiding device in the embodiment of the application can be buried in a road, wherein the projection plate can be kept level with the ground. The information display device can display guide information for guiding the vehicle in real time, and the guide information is projected to the upper side of the projection plate through the projection plate to form a guide information image with a floating effect. When the vehicle runs close to the ground traffic guiding device, the driver can see the guiding information image floating above the ground so as to quickly find the destination or quickly point to an idle parking space. Because the guiding information image formed by the ground traffic guiding device in the embodiment of the application has the floating effect and is positioned right in front of the vehicle, compared with the existing information of some signs, the guiding information image is more striking, thereby ensuring that the displayed content is not easy to be leaked by a driver. In addition, the guiding information image floating above the ground has no substantial and traversable advantages, so that the driving safety is not affected.
In addition, the ground traffic guiding device according to the embodiment of the application may further have the following additional technical features:
according to some embodiments of the present application, the ground traffic guiding apparatus further comprises a traffic information acquisition device and a control unit, wherein the traffic information acquisition device and the information display device are both in communication connection with the control unit; the traffic information acquisition device is used for acquiring vehicle information of a vehicle approaching the ground traffic guiding device and transmitting the vehicle information to the control unit; the control unit is configured to cause the information display device to provide guidance information corresponding to the vehicle in accordance with the vehicle information.
According to some embodiments of the application, the information display apparatus includes at least one flat display screen or a curved display screen disposed around the device housing.
According to some embodiments of the application, the projection board comprises a frame, a plurality of hollowed-out parts arranged in an array along a first direction and a second direction are formed on the frame, the hollowed-out parts are surrounded by a plurality of side walls arranged on the frame, two adjacent side walls have an orthogonal relationship, a reflecting layer is arranged on each side wall, and the first direction and the second direction are mutually perpendicular.
According to some embodiments of the application, the frame is made of a transparent material or the frame is made of an opaque material.
According to some embodiments of the application, each side wall forming the hollowed-out portion is disposed at an angle of 45 ° to the first direction or the second direction.
According to some embodiments of the application, the cross section of the hollowed-out part along the height direction of the frame is square, the dimension of the hollowed-out part along the height direction of the frame is 1-3 times of the side length of the hollowed-out part, the distance between adjacent hollowed-out parts is less than 1mm, and the side length of the hollowed-out part is 0.1-5 mm.
According to some embodiments of the application, the projection plate further includes a transparent filling portion, a part of the transparent filling portion is filled in the hollow portion, and another part of the transparent filling portion protrudes outside the hollow portion and can cover one side surface or two side surfaces of the frame along the height direction of the frame, so that the filling portions filled in the hollow portions are connected into a whole.
According to some embodiments of the present application, the projection plate includes a transparent substrate and rectangular columns arranged on the transparent substrate in an array, a space consistent with a bottom surface of the rectangular columns is provided between every two adjacent rows or adjacent columns of the rectangular columns in the rectangular column array, the rectangular columns and the space are alternately arranged, four sides of the rectangular columns are respectively provided with a reflective layer, and an upper end surface and a lower end surface of the rectangular columns are light-transmitting surfaces.
A second aspect of the embodiment of the present application provides a ground traffic auxiliary system, which includes a plurality of the ground traffic guiding devices in the first aspect, and further includes a control center, where the ground traffic guiding devices are buried in an intersection or a lane of a road, and the control center is communicatively connected to each of the ground traffic guiding devices, so as to guide a vehicle by controlling each of the ground traffic guiding devices.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the application, and other embodiments may be obtained according to these drawings to those skilled in the art.
Fig. 1 is a schematic structural diagram of a ground traffic guiding device provided by an embodiment of the present application in an application scenario;
Fig. 2 is a schematic structural diagram of a ground traffic guiding device according to an embodiment of the present application;
Fig. 3 to 6 are schematic structural diagrams of an installation position of a ground traffic guiding device on a road according to an embodiment of the present application;
FIG. 7 is a schematic diagram of an optical imaging device used in a ground traffic guiding apparatus according to an embodiment of the present application in one embodiment;
FIG. 8 is a schematic diagram of the principle of orthogonal reflection unit imaging;
FIG. 9 is a schematic view showing the structure of an optical imaging device used in the ground traffic guiding apparatus in the second embodiment of the present application;
FIG. 10 is a schematic view showing the structure of an optical imaging device used in the ground traffic guiding apparatus according to the embodiment of the present application in a third embodiment;
FIG. 11 is a schematic view showing the structure of an optical imaging device used in a ground traffic guiding apparatus according to the embodiment of the present application in a fourth embodiment;
Fig. 12 is a top view of the optical imaging device of fig. 11.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by the person skilled in the art based on the present application are included in the scope of protection of the present application.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Accordingly, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented, such as rotated 90 degrees or in other directions, and the spatial relative relationship descriptors used herein interpreted accordingly.
Referring to fig. 1, an embodiment of the present application provides a ground traffic guiding apparatus 10, which may be disposed in a road 10. The ground traffic guiding apparatus 10 includes an apparatus housing 11, an information display device 12, and a projection plate 14. Specifically, the information display apparatus 12 is provided inside the device housing 11, the information display apparatus 12 is configured to display guide information for guiding the vehicle, the projection plate 14 is provided on the top of the device housing 11, and the projection plate 14 is configured to project information displayed by the information display apparatus 12 onto the projection plate 14, forming a guide information image 15.
The ground traffic guiding apparatus 10 of the present embodiment may be buried in a road, wherein the projection plate 14 may be maintained flush with the ground. The information display device 12 can display guide information for guiding the vehicle in real time, and the guide information is projected onto the projection plate 14 through the projection plate 14 to form a guide information image 15 having a floating display effect. When the vehicle is driven close to the ground traffic guiding device 10, the driver can see the guiding information image 15 floating above the ground so that the destination can be found quickly or an empty parking place can be pointed quickly.
Because the guiding information image 15 formed by the ground traffic guiding device 10 in the embodiment of the application has a floating display effect and is positioned right in front of the vehicle, compared with the existing information of some signs, the guiding information image is more striking, thereby ensuring that the displayed content is not easy to be missed by a driver. In addition, the guiding information image 15 floating above the ground does not affect the driving safety due to its insubstantial and traversable advantages.
According to some embodiments of the present application, the ground traffic guiding apparatus 10 further includes a traffic information acquisition device 13 and a control unit (not shown in the figure). The traffic information acquiring device 13 and the information display device 12 are both communicatively connected to the control unit. Wherein the traffic information acquisition device 13 is used for acquiring vehicle information of a vehicle approaching the ground traffic guiding apparatus 10 and transmitting the vehicle information to the control unit. The control unit is configured to cause the information display device 12 to provide guidance information corresponding to the vehicle in accordance with the vehicle information.
The control unit may store related vehicle information, such as destination information of the vehicle, in advance. For example, for vehicles that often visit a parking lot at a fixed location, a driver may set a usual destination in advance. For such vehicles, the ground traffic guiding device 10 may give targeted guiding information. In a specific example, the traffic information acquiring device 13 identifies a vehicle approaching the ground traffic guiding apparatus 10, and when the identified vehicle information matches with information preset in the control unit, the information displaying device 12 may display specific guiding information having pertinence.
Since the guiding information image 15 is projected above the ground traffic intelligent auxiliary device 10 through the projection plate 14, and is limited by the depth of the ground traffic intelligent auxiliary device 10, the guiding information image 15 is not very high, the guiding information image 15 can only be seen by the driver of one vehicle closest to the ground traffic intelligent auxiliary device 10, and the guiding information image 15 is not seen by the rear vehicle due to being blocked by the front vehicle, therefore, the guiding information image 15 with specificity can only be received by the driver of the corresponding vehicle and is not transmitted to the driver of the rear vehicle, which is an effect which cannot be achieved by the conventional warning sign or the large screen display system of some intersections.
According to some embodiments of the present application, the traffic information acquisition device 13 is a camera that can perform image recognition of a vehicle.
In some embodiments, the traffic information acquisition device 13 is disposed inside the device housing 11, for example, may be disposed at the bottom of the projection plate 14 to identify vehicle information of vehicles approaching the ground traffic guiding device 10 through the projection plate 14.
In other embodiments, the traffic information acquisition device 13 is disposed in front of the device housing 11 and in the vicinity of the ground traffic guiding device 10, for example, the traffic information acquisition device 13 may be mounted on a pillar of a parking lot, and information is transmitted with the control unit by means of wireless communication.
Further, the traffic information acquisition device 13 may be a 360 ° depth camera. Since the ground traffic guiding device 10 is generally installed at an intersection of a road or a parking lot, a 360 ° depth camera is used, so that on one hand, three or even more than four directions of information of an incoming vehicle can be obtained by providing one camera, and on the other hand, the distance between the vehicle and the ground traffic guiding device 10 is known by the depth camera. When the vehicle travels within a certain distance, the information display device 12 displays corresponding traffic guidance information, so that the information display device 12 does not need to work all the time, which is beneficial to reducing energy consumption.
According to some embodiments of the present application, referring to fig. 2, the information display apparatus 12 includes at least one flat display screen or the information display apparatus 12 includes a curved display screen disposed around the device housing 11 for one turn. In the embodiment of the present application, the information display device 12 may be arranged in two manners, one is to use a flat display to place a corresponding number of flat displays in several corresponding vehicle driving directions, and the other is a curved display annularly arranged around the inside of the device housing 11, where the curved display may selectively display a partial area, and the facing direction of the displayed partial area is consistent with the vehicle driving direction.
Taking the case that the ground traffic guiding apparatus 10 is installed at an intersection as an example, when the information display device 12 includes a flat display screen, the ground traffic guiding apparatus 10 needs to provide traffic guiding information to drivers of vehicles coming in four directions, and thus it is necessary to install four flat display screens each of which displays toward the direction in which the vehicle comes, i.e., holographically projects an image of holographic traffic guiding information 15 in four directions above the projection plate 14, the guiding information image 15 in each direction being directed only to the driver of the vehicle in the corresponding direction. When the information display device 12 is a curved display screen, only one curved display screen needs to be installed, and the curved display screen can be displayed in four areas as needed, and the guide information image 15 corresponding to each area is only for the vehicle driver in the corresponding direction.
It will be appreciated that when the ground traffic guiding apparatus 10 is installed in the middle of a road, traffic guiding information needs to be provided only to drivers of vehicles coming in two directions, and at this time, if the information display device 12 is a flat display screen, only two flat display screens need to be installed, if a curved display screen is selected, the two areas may be displayed, and the area that is not visible to the vehicle driver may be set to be not displayed.
Further, in order to make it possible for the driver to visually and conspicuously view the guide information image 15, the guide information image 15 is disposed obliquely to the flat display screen with an inclination angle ranging from 10 to 30 degrees as perpendicular as possible to the line of sight of the driver.
In addition, referring to fig. 3, when the road is a single-lane road, only one ground traffic guiding apparatus 10 needs to be installed at the intersection. Referring to fig. 4 and 5, when the road is a bi-directional multilane, two ground traffic guiding devices 10 may be installed at an intersection, and the two ground traffic guiding devices 10 are installed at the intersection in a diagonal direction, so that a driver of a vehicle in each direction can observe required traffic guiding information in the middle of the lane thereof without omission. Referring to fig. 6, the ground traffic guiding device 10 may be installed in the middle of a road to guide vehicles.
According to some embodiments of the present application, the projection plate 14 is smaller in size than the distance between the two front wheels or the two rear wheels of the vehicle, so that the ground traffic guiding device 10 is buried in the middle of a road or the middle of an intersection lane, and the probability of being pressed by the wheels is smaller, which is advantageous for improving the life of the optical imaging device 14.
According to some embodiments of the present application, as shown in fig. 7, the projection plate 14 includes a frame, and a plurality of hollowed-out portions 141 arranged in an array along a first direction and a second direction are formed on the frame, that is, the projection plate 14 has a hollowed-out grid structure. The hollowed-out portion 141 is surrounded by a plurality of side walls 142 arranged on the frame, two adjacent side walls 142 are in an orthogonal relationship, a reflecting layer is arranged on each side wall 142, and the first direction and the second direction are mutually perpendicular. Wherein the dimension of the frame in the first direction is defined as the length direction L of the frame and the dimension of the frame in the second direction is defined as the width direction W of the frame.
In the embodiment of the present application, the side wall 142 of the hollowed-out portion 141 is provided with a reflective layer, and the reflective layer may be a totally reflective metal film, such as a silver-plated film or an aluminum-plated film. The reflective layer may also be a totally reflective nonmetallic film. The reflection layer can reflect light, and the adjacent side walls 142 have an orthogonal relationship, so that the adjacent side walls 142 can form an orthogonal reflection unit 141a, after the incident light is reflected by the orthogonal reflection unit 141a, the incident light exits from the other side through the hollowed-out part 141 and is re-converged in the air, and a holographic projection image which is in mirror symmetry with the information display device 12 can be formed above the projection plate 14, and the holographic projection image is used as traffic guiding information to guide a vehicle driver to safely travel. The hollowed-out part 141 is arranged so that the light rays do not relate to the problem of propagation in different media in the process of entering and exiting, and the energy loss of the light rays in the propagation process can be reduced.
Referring to fig. 8, when rays from any point S in the space below the projection plate are incident on the same position of the sidewall 142 of the hollow portion 141, the rays are reflected by the orthogonal reflection unit 141a and then re-intersect at a point S'. Meanwhile, referring to fig. 1, the information display device 12 is formed by countless S under the projection plate 14, and after the light rays emitted from the information display device 12 pass through the projection plate 14, the light rays are re-intersected into S 'corresponding to S at symmetrical positions above the projection plate 14, and the countless S' also form a complete image.
According to some embodiments of the application, the frame may be made of a transparent material, such as transparent glass, resin, or the like. The side wall 142 of the frame, which is made of transparent material, is provided with a reflective layer along the height direction of the frame, and the side wall 142 of the light incident side of the frame is transparent, so that light rays cannot be reflected, stray light can be reduced, and interference to the imaging effect of the optical imaging device is avoided.
According to other embodiments of the present application, the frame may be made of opaque materials, such as metal, ceramic, opaque hard plastic, etc., and since the frame itself in the embodiments of the present application mainly plays a role of support without transmitting light, the frame has a wider space in material selection, and only needs to consider the rigidity, strength, cost, etc. of the material itself, so as to meet the requirements of different customers for differentiation of the optical imaging element. For example, a metal material can improve the strength of the frame and prolong the service life of the optical imaging device due to its higher strength and good ductility, for example, a metal material with better ductility and smaller density, such as aluminum or an aluminum alloy, magnesium or a magnesium alloy, or the like, can be selected. Ceramic materials are also good choices for frame materials due to their high hardness and stable chemical properties. The hard plastic is also a proper choice because of its light weight, low cost and stable chemical properties.
According to some embodiments of the present application, as shown in fig. 9, each sidewall 142 forming the hollowed-out portion 141 is disposed at an angle θ of 45 ° with respect to the first direction or the second direction.
In this embodiment, each side wall 142 forming the hollowed-out portion 141 forms an included angle θ with the first direction or the second direction, where the first direction and the second direction may correspond to the length direction L and the width direction W of the frame, respectively, so that the direction of the angular bisector of the orthogonal reflecting unit 141a is exactly the direction of the user looking along the side edge of the length direction L or the width direction W of the frame. The projection plate 14 of the frame structure can directly observe the imaging result along the side edge of the length direction or the width direction of the frame, thereby being more convenient for users to observe.
In addition, in this embodiment, as shown in fig. 9, when each side wall 142 forming the hollowed-out portion 141 forms an angle θ of 45 ° with the first direction or the second direction, a concave portion 143 is further formed at the edge of the frame, the concave portion 143 is surrounded by two side walls 142 forming the hollowed-out portion 141, and the concave portion 143 also includes the orthogonal reflection units 141a, so that the number of orthogonal reflection units 141a of the projection plate 14 for imaging can be increased, and the imaging effect can be improved.
Further, as shown in fig. 9, the cross section of the hollowed-out portion 141 along the height direction H of the frame is square, the dimension of the hollowed-out portion 141 along the height direction H of the frame is 1-3 times the side length L1 of the hollowed-out portion 141, the distance between adjacent hollowed-out portions 141 is 1mm or less, and the side length L1 of the hollowed-out portion 141 is 0.1mm to 5mm.
In this embodiment, the height h of the hollowed-out portion 141 determines how much the reflective layer can receive the light irradiation. When the height h of the hollowed-out portion 141 is smaller than the diameter of the hollowed-out portion 141 or the side length L1 of the hollowed-out portion 141, the reflective layer can receive less light, so that the reflected light is less, and the brightness of the formed image is lower. When the height h of the hollowed-out portion 141 is 1.5-3 times the diameter of the hollowed-out portion 141 or the side length L1 of the hollowed-out portion 141, the reflective layer can receive more light, so that more light is reflected out, and the formed image has higher brightness. When the height h of the hollowed-out portion 141 continues to increase, for example, the ratio of the height h of the hollowed-out portion 141 to the diameter of the hollowed-out portion 141 or the side length L1 of the hollowed-out portion 141 is greater than 3, the reflection layer receives more light rays, but the number of reflection times before the light rays exit is more, and the attenuation is serious, so that when the height h of the hollowed-out portion 141 is 1.5-3 times the diameter of the hollowed-out portion 141 or the side length L1 of the hollowed-out portion 141, the image brightness is highest.
The spacing between adjacent hollowed-out portions 141, that is, the thickness of the side wall 142 forming the hollowed-out portions 141, determines how many hollowed-out portions 141 are formed on the frame, that is, how many orthogonal reflecting units 141a are used for imaging, and when the spacing between adjacent hollowed-out portions 141 is less than 1mm, enough orthogonal reflecting units 141a are used for imaging on the frame. And the pitch also determines the size of the pixels themselves as the projection plate 14 is imaged, the smaller the pixels, the higher the image display quality. The smaller the pitch is, the smaller the pitch between the orthogonal reflecting units 141a for imaging is, and thus the smaller the pitch between the formed pixel points is, and thus the higher the image quality of the resultant traffic guiding information is, but this pitch cannot be too small in consideration of the structural stability of the frame and the level of technology. The size of the spacing must ensure not only the stability of the frame structure itself, but also the practical process.
The side length L1 of the hollow portion 141 determines the interval between the pixels when the projection plate 14 images. The smaller the side length L1 of the hollowed-out portion 141, the more the number of orthogonal reflecting units 141a for imaging, and the smaller the pitch between the orthogonal reflecting units 141a, the smaller the pitch between the formed pixel points, and therefore, the higher the display quality of the image, the clearer the resultant image. However, in the actual process, the process difficulty and cost limit the side length L1 of the hollowed-out portion 141 not to be infinitely small.
The projection plate 14 may have a single-layer structure directly formed by a frame to reduce the cost of the projection plate 14. Of course, the projection plate 14 may also include a transparent filling portion 144, a part of the transparent filling portion 144 is filled in the hollow portion 141, and another part of the transparent filling portion 144 protrudes outside the hollow portion 141 and can cover one side or two sides of the frame along the height direction H of the frame, so that the filling portions filled in the hollow portions 141 are connected as a whole. As shown in fig. 10, the transparent filling portion 144 fills the hollow portion 141 and covers one side surface of the frame.
In this embodiment, the transparent filling portion 144 filled in the hollowed portion 141 not only can protect the internal frame, but also can play a role of supporting the frame, so as to improve the strength of the projection plate 14 and prolong the service life of the projection plate 14, and meanwhile, the transparent filling portion 144 can protect the reflective layer, so as to avoid the reflective layer from being easily worn due to exposure. The frame and the transparent filling portion 144 are both integrally formed. The transparent filling portion 144 protruding outside the hollow portion 141 enables each of the discrete hollow portions 141 filled in the hollow portion 141 to be connected together and plays a role of connecting the frame, so that the frame and the transparent hollow portion 141 are integrated, and the frame and the transparent hollow portion 141 are connected without an additional process, thereby further simplifying the production process and reducing the production cost.
According to some embodiments of the present application, projection plate 14 may also have the following form: as shown in fig. 11 and 12, the projection plate 14 includes a transparent substrate 145 and rectangular columns 146 arranged in an array on the transparent substrate 145, gaps 147 consistent with the bottom surfaces of the rectangular columns 146 are provided between every two adjacent rows or columns of the rectangular columns 146 in the array of the rectangular columns 146, the rectangular columns 146 and the gaps 147 are arranged alternately, reflection layers are arranged on four sides of the rectangular columns 146, and the upper end surface and the lower end surface of the rectangular columns 146 are light-transmitting surfaces. In the embodiment of the present application, the side surface of the rectangular pillar 146 is used for reflecting light and converging and imaging above the projection plate 14, and the gap 147 is not filled, so that the light loss when the light passes through the gap 147 can be reduced to the minimum, thereby improving the brightness of the image formed by holographic projection.
As shown in fig. 11, four sides of the rectangular columns 146 are respectively provided with a reflective layer, and orthogonal reflective units 141a can be formed between adjacent rectangular columns 146, and in combination with the schematic imaging principle of the orthogonal reflective units shown in fig. 8, a ray with any point S as a starting point in the space below the projection plate 14 is reflected by the orthogonal reflective units 141a and then re-intersects at the point S' in the space above. Finally, the screen image formed by countless S under the projection plate 14, after the light passes through the projection plate 14, the light re-intersects at symmetrical positions above the projection plate 14 to form S 'corresponding to S, and the countless S' also forms a complete image, so that holographic projection is realized.
Specifically, the dimensions of the rectangular posts 146 may be set with reference to the dimensions of the hollowed-out portions 141, that is, the ratio of the length, the width and the height of the rectangular posts 146 may be 1:1:1 to 1:1:3. The length and width of the rectangular posts 146 may be equal, i.e., the rectangular posts 146 have a square cross-section with sides L1 of 0.1mm-5mm, and the spacing between the rectangular posts 146 is equal to the sides L1 of the cross-section. The smaller the size of the rectangular posts 146, the better the projection effect, but because the pressure resistance of the projection plate 14 produced by the undersized rectangular posts 146 is poor, the length, width and height of the rectangular posts 146 can be 500um, 500um and 1000um, respectively.
A second aspect of the embodiment of the present application provides a ground traffic auxiliary system, which includes a plurality of the above-mentioned ground traffic guiding devices 10, and further includes a control center, where the ground traffic guiding devices 10 are buried in the middle of an intersection or a traffic lane of a road, and the control center is in communication connection with each ground traffic guiding device 10 in a wired or wireless manner, so as to guide a vehicle by controlling each ground traffic guiding device 10.
According to the ground traffic auxiliary system provided by the embodiment of the application, the vehicles are guided by the plurality of ground traffic guiding devices 10, so that each vehicle can orderly run, the vehicles can be split and managed conveniently, and meanwhile, each vehicle can be quickly guided to a corresponding destination or can quickly find an idle parking space.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The various embodiments of the present application are described in a related manner, and identical and similar parts of the various embodiments are all mutually referred to, and each embodiment is mainly described in terms of differences from the other embodiments.
The foregoing is merely a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.
Claims (9)
1. A ground traffic guiding apparatus, comprising:
A device housing;
An information display apparatus provided inside the device case, the information display apparatus configured to display guidance information for guiding a vehicle;
The projection plate is arranged on the top of the device shell and is used for projecting information displayed by the information display equipment to the position above the projection plate so as to form a guide information image;
The projection plate comprises a frame, a plurality of hollowed-out parts which are arranged in an array manner along a first direction and a second direction are formed on the frame, the hollowed-out parts are surrounded by a plurality of side walls which are arranged on the frame, two adjacent side walls have an orthogonal relationship, a reflecting layer is arranged on each side wall, and the first direction and the second direction are mutually perpendicular;
the dimension of the hollowed-out parts along the height direction of the frame is 1-3 times of the side length or the diameter of the hollowed-out parts, and the distance between the adjacent hollowed-out parts is less than 1 mm.
2. The ground traffic guiding apparatus according to claim 1, further comprising a traffic information acquisition device and a control unit, both of the traffic information acquisition device and the information display device being communicatively connected to the control unit;
The traffic information acquisition device is used for acquiring vehicle information of a vehicle approaching the ground traffic guiding device and transmitting the vehicle information to the control unit;
the control unit is configured to cause the information display device to provide guidance information corresponding to the vehicle in accordance with the vehicle information.
3. The ground traffic guiding apparatus of claim 1, wherein the information display device comprises at least one flat display screen or a curved display screen disposed around the apparatus housing.
4. The ground traffic guiding apparatus of claim 1, wherein the frame is made of a transparent material or the frame is made of an opaque material.
5. The ground traffic guiding device according to claim 1, wherein each side wall forming the hollowed-out portion is disposed at an angle of 45 ° to the first direction or the second direction.
6. The ground traffic guiding device according to claim 1, wherein the cross section of the hollowed-out portion in the height direction of the frame is square, and the side length of the hollowed-out portion is 0.1mm to 5mm.
7. The ground traffic guiding device according to claim 1, wherein the projection plate further comprises a transparent filling portion, a part of the transparent filling portion is filled in the hollowed-out portion, and the other part of the transparent filling portion protrudes outside the hollowed-out portion and can cover one side surface or two side surfaces of the frame along the height direction of the frame, so that the filling portions filled in the hollowed-out portions are connected as a whole.
8. The ground traffic guiding device according to claim 1, wherein the projection plate comprises a transparent substrate and rectangular columns arranged on the transparent substrate in an array manner, gaps consistent with the bottom surfaces of the rectangular columns are formed between every two adjacent rectangular columns in each two adjacent rows or adjacent columns in each rectangular column array, the rectangular columns and the gaps are alternately arranged, reflecting layers are arranged on four side surfaces of each rectangular column, and the upper end surface and the lower end surface of each rectangular column are light-transmitting surfaces.
9. A ground traffic auxiliary system comprising a plurality of the ground traffic guiding devices according to any one of claims 1 to 8, and further comprising a control center, wherein the ground traffic guiding devices are buried in the middle of intersections or traffic lanes of roads, and the control center is communicatively connected to each of the ground traffic guiding devices so as to guide vehicles by controlling each of the ground traffic guiding devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210582161.0A CN114999213B (en) | 2022-05-26 | 2022-05-26 | Ground traffic guiding device and ground traffic auxiliary system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210582161.0A CN114999213B (en) | 2022-05-26 | 2022-05-26 | Ground traffic guiding device and ground traffic auxiliary system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114999213A CN114999213A (en) | 2022-09-02 |
| CN114999213B true CN114999213B (en) | 2024-04-30 |
Family
ID=83028247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210582161.0A Active CN114999213B (en) | 2022-05-26 | 2022-05-26 | Ground traffic guiding device and ground traffic auxiliary system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114999213B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180045661A (en) * | 2016-10-26 | 2018-05-04 | 주식회사 만도 | Optimum driving lane leading method and system using a front image and navigation information |
| CN110060490A (en) * | 2019-04-08 | 2019-07-26 | 河南城建学院 | A kind of crossing safety auxiliary system and its control method based on line holographic projections |
| CN210015692U (en) * | 2019-03-19 | 2020-02-04 | 洛阳市光发能源科技有限公司 | Road indicator lamp based on holographic projection effect |
| CN111679539A (en) * | 2020-05-20 | 2020-09-18 | 洛阳师范学院 | 3D film projection arrangement of cinema |
| CN113335196A (en) * | 2020-03-02 | 2021-09-03 | 福特全球技术公司 | Vehicle logo assembly |
| CN114114685A (en) * | 2020-08-27 | 2022-03-01 | 纳宝实验室株式会社 | Head-up display and control method thereof |
| CN114283606A (en) * | 2020-09-27 | 2022-04-05 | 阿波罗智联(北京)科技有限公司 | Method, device, equipment and system for vehicle navigation and cloud control platform |
| CN114446085A (en) * | 2022-01-28 | 2022-05-06 | 上海智能网联汽车技术中心有限公司 | Parking guidance system based on projection technology |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105378813A (en) * | 2013-07-05 | 2016-03-02 | 三菱电机株式会社 | Information display device |
-
2022
- 2022-05-26 CN CN202210582161.0A patent/CN114999213B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180045661A (en) * | 2016-10-26 | 2018-05-04 | 주식회사 만도 | Optimum driving lane leading method and system using a front image and navigation information |
| CN210015692U (en) * | 2019-03-19 | 2020-02-04 | 洛阳市光发能源科技有限公司 | Road indicator lamp based on holographic projection effect |
| CN110060490A (en) * | 2019-04-08 | 2019-07-26 | 河南城建学院 | A kind of crossing safety auxiliary system and its control method based on line holographic projections |
| CN113335196A (en) * | 2020-03-02 | 2021-09-03 | 福特全球技术公司 | Vehicle logo assembly |
| CN111679539A (en) * | 2020-05-20 | 2020-09-18 | 洛阳师范学院 | 3D film projection arrangement of cinema |
| CN114114685A (en) * | 2020-08-27 | 2022-03-01 | 纳宝实验室株式会社 | Head-up display and control method thereof |
| CN114283606A (en) * | 2020-09-27 | 2022-04-05 | 阿波罗智联(北京)科技有限公司 | Method, device, equipment and system for vehicle navigation and cloud control platform |
| CN114446085A (en) * | 2022-01-28 | 2022-05-06 | 上海智能网联汽车技术中心有限公司 | Parking guidance system based on projection technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114999213A (en) | 2022-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1528527B1 (en) | A light device, particularly a light panel for road signs or information to the public, or a motor-vehicle light | |
| KR19990028422A (en) | Wide range of vertical retroreflective indicators | |
| US20100182219A1 (en) | Image display device | |
| US20220219538A1 (en) | Information display system and vehicle information display system using the same | |
| WO2020166286A1 (en) | Vehicle information display apparatus and information display system for vehicle | |
| JP7282174B2 (en) | Information display system | |
| CN114999213B (en) | Ground traffic guiding device and ground traffic auxiliary system | |
| US10488656B2 (en) | Display device, and mobile body having same | |
| JP3689741B2 (en) | Information road surface projection device | |
| CN101371169A (en) | Retro-reflector | |
| JP2007279857A (en) | Information display device | |
| EP0774149B1 (en) | Sign illumination system and method | |
| JP2002023674A (en) | Tile type display device | |
| WO2021235354A1 (en) | Vehicle display apparatus | |
| CN110824701A (en) | Optical engine implementation method, optical engine and double-display automobile head-up display system | |
| CN113119863B (en) | Whole vehicle window imaging system | |
| KR20210097521A (en) | Lighthouse type traffic lights and traffic system having the same | |
| US6151821A (en) | Road sign | |
| US20180281867A1 (en) | Invisible frame for automobile windshield and side windows | |
| CN113219657A (en) | Vehicle head-up display system | |
| CN113026592B (en) | 3D stereograph traffic indicator | |
| US10502953B2 (en) | Display device, and mobile body having same | |
| WO2021215400A1 (en) | Vehicular display device | |
| CN118155518A (en) | Vehicle-mounted beacon display device and equipment | |
| JP3072676B2 (en) | Display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |