Vehicle-oriented systems

Abstract

A vehicle-oriented system (1) provides information to a vehicle (5) side using an information providing area (11) provided on a plane for the vehicle (5) to move, wherein a magnetic distribution representing information using a plurality of N-pole magnetic markers (10N) is formed in the information providing area (11), and a mark (100) for determining the position and orientation of the information providing area (11) is provided in the information providing area (11), thereby enabling information to be provided using a magnetic method regardless of the direction of travel of the vehicle (5).

Description

Technical Field

[0001] The present invention relates to a vehicle-oriented system capable of providing information to a vehicle side by using a magnetic marker and an information reading method in the vehicle-oriented system. Background Art

[0002] Magnetic markers installed along vehicle roads are known (see, for example, Patent Document 1). Magnetic markers can be detected, for example, by magnetic sensors installed on vehicles. Using magnetic markers along lanes, for example, can enable automated driving, in addition to various driving assistance features such as automatic steering control and lane departure warnings.

[0003] A single magnetic marker can only provide limited information to a vehicle. Therefore, a system has been proposed that uses multiple magnetic markers to provide information to a vehicle (see, for example, Patent Document 2). In this system, for example, the combination of magnetic polarities of magnetic markers arranged along a lane represents information. As a vehicle travels along a lane lined with magnetic markers, it sequentially detects the magnetic polarity of the markers and, by identifying the combination of magnetic polarities, reads information.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2018-010356

[0007] Patent Document 2: Japanese Patent Application Laid-Open No. 2003-109173 Summary of the Invention

[0008] Problems to be solved by the invention

[0009] However, the above-mentioned system has a problem in that information cannot be read unless the vehicle is traveling along a route where the magnetic marker is installed.

[0010] The present invention has been made in view of the above-mentioned conventional problems, and aims to provide a system or method for providing information using a magnetic method, and a vehicle-oriented system and information reading method capable of providing information regardless of the direction of travel of the vehicle.

[0011] Solutions to Problems

[0012] One embodiment of the present invention is a vehicle-oriented system that provides information to the vehicle side using an information providing area provided on a plane on which the vehicle moves, characterized in that:

[0013] A magnetic distribution representing the information is formed in the information providing area, and a marker capable of identifying the position and orientation of the information providing area is provided.

[0014] One embodiment of the present invention is an information reading method for reading information from an information providing area provided on a plane for vehicle movement, wherein:

[0015] In the information providing area, a magnetic distribution representing the information is formed, and a mark capable of identifying the position and orientation of the information providing area is attached.

[0016] When a vehicle passes through the information providing area, the magnetic distribution in the information providing area is obtained, and the direction of the information providing area is determined by detecting the mark.

[0017] Based on the determined orientation of the information providing region, information represented by the acquired magnetic distribution is determined and read.

[0018] Effects of the Invention

[0019] The information providing area of ​​the present invention is an area formed with a magnetic pattern representing the information. A marker is provided in the information providing area to identify the location and orientation of the information providing area. Based on this marker, the location of the information providing area can be determined, as can the vehicle's approach direction relative to the information providing area. This allows the vehicle to reliably read the information displayed in the information providing area. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an explanatory diagram of the vehicle-oriented system in the first embodiment.

[0021] Figure 2 This is an explanatory diagram of the information provision area in Example 1.

[0022] Figure 3 This is a diagram showing the magnetic marker in Example 1.

[0023] Figure 4 This is a block diagram showing the system configuration on the vehicle side in the first embodiment.

[0024] Figure 5 This is a flowchart showing the steps of the information reading process in the first embodiment.

[0025] Figure 6 This is an explanatory diagram of another information provision area in Example 1.

[0026] Figure 7 This is a block diagram showing another system configuration on the vehicle side in the first embodiment.

[0027] Figure 8 This is an explanatory diagram of another information provision area in Example 1.

[0028] Figure 9This is an explanatory diagram of another information provision area in Example 1.

[0029] Figure 10 This is an explanatory diagram of another information provision area in Example 1.

[0030] Figure 11 This is a perspective view showing a roll formed by rolling up the sticking sheet forming the information providing area in Example 2.

[0031] Figure 12 This is a diagram illustrating a lane where a sheet for attaching to form an information provision area is constructed in Example 2.

[0032] Figure 13 This is an explanatory diagram of another construction method of the information provision area in Example 2. DETAILED DESCRIPTION

[0033] The embodiments of the present invention will be described in detail using the following examples.

[0034] (Example 1)

[0035] This example shows an example of a vehicle-oriented system 1 that provides information to the vehicle 5 side using a magnetic method. Figures 1 to 10 This content will be explained.

[0036] Vehicle-oriented system 1 ( Figure 1 ) is a system that provides information to vehicles 5 using an information provision area 11 located on a surface on which vehicles 5 move. In this example, the surface on which vehicles 5 move is assumed to be a paved surface such as a container yard at a port or an apron at an airport. The vehicles 5 are assumed to be vehicles carrying out operations at container yards and aprons. These areas differ from conventional roads in that they are open spaces. Within container yards and aprons, each vehicle can move with a high degree of freedom, avoiding other vehicles, aircraft, and people. Within these open spaces, vehicles 5 move in various directions, and the direction from which a vehicle 5 enters the information provision area 11 is uncertain.

[0037] In the vehicle-based system 1, information provision areas 11 are arranged two-dimensionally in a grid pattern on paved surfaces such as container yards and aircraft parking areas. When a vehicle 5 passes through the information provision area 11, it can read information regardless of its direction of entry into the information provision area 11. This information includes various types of information, such as information indicating work site attributes, location information, and precautionary information. Examples of work site attributes include pickup locations and delivery locations.

[0038] In the information provision area 11 ( Figure 2) is arranged in a magnetic marker 10, which is an example of a magnetic generating source, to form a magnetic distribution. The information provision area 11 is a square area (an example of a rectangular shape) with a length of 1 meter and a width of 1 meter. This square information provision area 11 is divided into nine 3×3 partitions 110. Each partition 110, measuring approximately 33 cm by 33 cm, is used to arrange the magnetic marker 10.

[0039] Magnetic marker 10 ( Figure 3 ) is a flat, single-piece marker with a diameter of 100 mm and a thickness of 2 mm. The magnetic marker 10 is composed of a circular magnet sheet 101. The magnet sheet 101 is an isotropic ferrite rubber magnet with a maximum energy product (BHmax) of approximately 6.4 kJ / m3. On the front and back surfaces of the magnetic marker 10, one surface forms an N pole and the other surface forms an S pole. When the magnetic marker 10 is installed, the magnetic polarity that can be detected on the vehicle 5 side changes depending on which surface is facing upward.

[0040] In the following description, the magnetic marker 10 disposed with the N-pole surface facing upward and detectable as the N-pole on the vehicle 5 side will be appropriately referred to as the N-pole magnetic marker 10N (see Figure 2 。 ). In addition, the magnetic marker 10 which is arranged in a state where the surface of the S pole faces upward and can be detected as the S pole on the vehicle 5 side is appropriately referred to as the S pole magnetic marker 10S. Figure 2 In the information providing area 11, the N-pole magnetic marker 10N is used to provide information to the vehicle 5. The S-pole magnetic marker 10S forms a mark 100 that can identify the position and orientation of the information providing area 11.

[0041] In the vehicle-oriented system 1, in the information provision area 11 ( Figure 2 ), any number of north-pole magnetic markers 10N, including zero, are arranged two-dimensionally, and information is expressed by their arrangement pattern. The mark 100 is a square-shaped information provision area 11, with south-pole magnetic markers 10S arranged in three of the four sections 110 forming the corners. Within the information provision area 11, six sections 110, excluding the three sections 110 with south-pole magnetic markers 10S, can be used to provide information.

[0042] Here, refer to Figure 4 The system configuration of the vehicle 5 side using the vehicle-oriented system 1 will be described. The system on the vehicle 5 side includes a sensor array 51 including a plurality of magnetic sensors 510, a control unit 55 for controlling the sensor array 51, and a database 550 for storing information represented by each arrangement pattern of the magnetic markers 10N.

[0043] The sensor array 51 is a rod-shaped unit that includes multiple magnetic sensors 510 and a detection processing circuit 512 that processes the magnetic measurement values ​​of each magnetic sensor 510. In the rod-shaped sensor array 51, for example, 15 magnetic sensors 510 are arranged in a straight line at regular intervals. The sensor array 51 is mounted on the vehicle 5 so that its longitudinal direction extends along the vehicle width.

[0044] The magnetic measurement values ​​measured by each magnetic sensor 510 of the sensor array 51 at the same time point form a one-dimensional magnetic distribution along the vehicle width direction. The sensor array 51 outputs this one-dimensional magnetic distribution at a frequency of 3 kHz. Furthermore, when the measurement values ​​constituting the one-dimensional magnetic distribution exceed a predetermined threshold, the sensor array 51 outputs a detection signal indicating that the magnetic marker 10 has been detected.

[0045] Magnetic sensor 510 is, for example, a highly sensitive MI (Magneto Impedance) sensor. An MI sensor uses a linear amorphous wire as a magnetic sensor and can measure the direction and magnitude of magnetism acting along the amorphous wire. In this example, each magnetic sensor 510 is assembled into sensor array 51 and mounted on vehicle 5 in a manner that allows for measurement of the magnitude of magnetism acting in the vertical direction. The one-dimensional magnetic distribution output by sensor array 51 represents the distribution of magnetic measurement values ​​along the vertical direction, along the vehicle width.

[0046] Database 550 ( Figure 4 ) is implemented using the storage area of ​​a storage device such as a hard disk drive or solid-state drive. The database 550 stores information corresponding to each configuration pattern of the N-pole magnetic marker 10N. By using the configuration pattern of the N-pole magnetic marker 10N and referring to the database 550, the corresponding information can be determined.

[0047] Control unit 55 ( Figure 4 ) is a unit that controls the sensor array 51 and reads the information represented by the information providing area 11 from the database 550. The control unit 55 obtains the one-dimensional magnetic distribution periodically output by the sensor array 51 and stores it in sequence in a storage area not shown. The control unit 55 stores the one-dimensional magnetic distribution within the past specified time. When storing a new one-dimensional magnetic distribution, the control unit 55 eliminates the one-dimensional magnetic distribution at the earliest storage time point. The control unit 55 accumulates the one-dimensional magnetic distribution along the direction of travel of the vehicle 5, thereby forming a two-dimensional magnetic distribution with the length of the sensor array 51 as the width and the distance traveled by the vehicle 5 within the past specified time as the vertical dimension.

[0048] In this example, the time required for vehicle 5 to travel a specified distance is set as the predetermined time for storing the one-dimensional magnetic distribution. Therefore, the faster the speed of vehicle 5, the shorter the predetermined time, and the slower the speed, the longer the predetermined time. As a result, the vertical dimension of the two-dimensional magnetic distribution formed by control unit 55 remains constant regardless of the speed of vehicle 5. In this example, the vertical dimension of the two-dimensional magnetic distribution is set so that it can cover the information provision area 11 of 1m×1m in size.

[0049] The control unit 55 processes the two-dimensional magnetic distribution to determine the configuration of the magnetic markers 10 in the information provision area 11. The control unit 55 determines the configuration of the north-pole magnetic markers 10N and the south-pole magnetic markers 10S, respectively. The position and orientation of the information provision area 11 can be determined based on the three south-pole magnetic markers 10S that serve as the marker 100. Furthermore, the information represented in the information provision area 11 can be determined based on the configuration pattern of the north-pole magnetic markers 10N.

[0050] Here, refer to Figure 5 The flowchart in FIG. 1 illustrates the processing performed by the control unit 55. Upon receiving a detection signal from the magnetic marker 10 from the sensor array 51 ( S101 : Yes), the control unit 55 reads a two-dimensional magnetic distribution obtained from a storage area (not shown) based on the one-dimensional magnetic distribution obtained by the sensor array 51 ( S102 ). The control unit 55 then processes the two-dimensional magnetic distribution, detects the south-pole and north-pole magnetic markers 10, and determines their placement ( S103 ).

[0051] Next, the control unit 55 determines the position and orientation of the information provision area 11 based on the arrangement of the S-pole magnetic markers 10S (S104). The control unit 55 determines the position of the information provision area 11 as the center of the nine sections 110 of the information provision area 11, that is, the center of the information provision area 11. Specifically, the control unit 55 uses the S-pole magnetic markers 10S located at three corners to identify the two sides of the information provision area 11, thereby determining the center of the information provision area 11. Furthermore, the control unit 55 uses the arrangement of the S-pole magnetic markers 10S located at three corners to determine the position and orientation of the information provision area 11.

[0052] The control unit 55 determines the arrangement pattern of the north-pole magnetic marker 10N in the information provision area 11, whose position and orientation have been determined (S105). The control unit 55 then uses the arrangement pattern of the north-pole magnetic marker 10N and references the database 550 (S106) to determine the information corresponding to the arrangement pattern of the north-pole magnetic marker 10N (S107). Through the above steps, the control unit 55 reads information from the information provision area 11.

[0053] In the vehicle-based system 1, south-pole magnetic markers 10S, located at three corners of the square-shaped information provision area 11, constitute markers 100 for identifying the position and orientation of the information provision area 11. In the vehicle-based system 1, these markers 100 can be used to identify the position and orientation of the information provision area 11, thereby uniquely determining the arrangement pattern of the north-pole magnetic markers 10N. Uniquely determining the arrangement pattern of the north-pole magnetic markers 10N allows each vehicle 5 arriving at the information provision area 11 to reliably read information, regardless of the direction of entry relative to the information provision area 11.

[0054] Note that, in this example, a configuration is described in which a database 550 storing information displayed in the information provision area 11 is provided in each vehicle 5. Alternatively, the database may be provided in a server device with which the vehicle 5 can communicate. In this case, the information provided to the vehicle can be changed at any time by rewriting the database information.

[0055] Instead of this example, a configuration may be employed in which different information can be read on the vehicle 5 side depending on the direction of entry relative to the information provision area 11. In the configuration of this example, the position and orientation of the information provision area 11 can be determined on the vehicle 5 side. Therefore, the information provided can be changed according to the direction in which the vehicle 5 passes through the information provision area 11. For example, when applied to a route where the direction of travel is specified as one-way, it is preferable to change the information provided according to the direction of travel of the vehicle 5. For example, it is also possible to provide information such as the speed limit to vehicles normally traveling on the route, and on the other hand, provide information indicating the reverse travel to vehicles traveling in the reverse direction.

[0056] Note that, in this example, a container yard forming a port, an airport apron, or other paved surface is exemplified as a surface on which the vehicle 5 travels. The vehicle-oriented system 1 can also be applied to roads on which ordinary vehicles travel.

[0057] In addition, in this example, as an example of the mark 100, a mark formed by the S-pole magnetic markers 10S at the corners of three positions is illustrated. Alternatively, the S-pole magnetic markers 10S may be replaced by printing or the like. Figure 6For example, if a road camera 57 is used to capture the paved surface, Figure 7 The system on the vehicle 5 side can Figure 6 The information provided in the information area 11 is read. Figure 7 In a system, the magnetic marker 10N can be detected by the sensor array 51, and the double circle 114 can be detected by the road camera 57. The control unit 55 determines the position and orientation of the information providing area 11 by using the configuration of the double circle 114, and can read information based on the configuration pattern of the magnetic marker 10N. In the case of adopting such a structure, the N-pole magnetic marker 10N can also be configured in a manner overlapping with the double circle 114 forming the sign 100. If the sign 100 is configured in this way, all of the 9 partitions 110 constituting the information providing area 11 can be used to represent information. And, in this case, in order to express information, the S-pole magnetic marker 10S can be used. If a combination of the N-pole magnetic marker 10N and the S-pole magnetic marker 10S is used, the amount of information that can be provided to the vehicle side can be expanded.

[0058] It should be noted that the image (appearance) mark 100 only needs to be recognizable visually. Instead of a double circle, it can also take various shapes, such as a rectangle or triangle. Furthermore, a mark can be a combination of multiple shapes, such as a double circle and a rectangle. Examples of recognizable visually recognizable shapes include reflective components, coatings formed from reflective paint, and other visually distinct shapes that become apparent when illuminated by light. The appearance of the appearance can be located within the information provision area 11, but it can also be located outside the information provision area 11. For example, the appearance of the appearance can be located outside the information provision area 11, adjacent to the three corners (vertices) of the information provision area.

[0059] like Figure 8 As shown in FIG. 1 , L-shaped paint 112 along both sides of the information providing area 11 may be provided as the mark 100. In this way, the mark 100 may be arranged on the outer peripheral side of the information providing area 11. Figure 9 As shown, a mark 100 may be formed by combining a printed frame 116 surrounding the information provision area 11 (an example of an external mark detectable in a captured image of the information provision area 11) and a magnetic marker 10S at the south pole of a corner (an example of a magnetically detectable magnetic mark). In other words, a mark 100 that can be identified using a combination of magnetic and imaging methods is also possible. It should be noted that the magnetic marker 10S at the south pole in this figure can also be replaced with a double-circle print.

[0060] It should be noted that, in this example, circular magnetic markers 10 are arranged in the nine subareas 110 of the information providing area 11. The shape of the magnetic markers can be appropriately changed. Furthermore, magnetic markers of the same size as the subareas 110 can also be used.

[0061] The size and shape of the information providing area 11 and the number of the partitions 110 are not limited to the configuration of this example and can be modified as appropriate.

[0062] Alternatively, the information providing area may be formed by using a rubber sheet (an example of a sheet) made of a rubber material mixed with magnetic powder. In this case, it is preferable to magnetize each position of the rubber sheet in such a way as to form a predetermined magnetic distribution. For example, the magnetic distribution may be the arrangement of the magnetic marker 10 (see Figure 2 Alternatively, you can also simulate the distribution without using partitions ( Figure 2 The information provision area is not divided into sections by a magnetic distribution (reference numeral 110 in the figure), but rather by a magnetic distribution that continuously changes with a predetermined fluctuation in magnetic intensity. This continuously changing magnetic distribution can serve as a marker for determining the position and orientation of the information provision area 11. Furthermore, magnetic singularities based on magnetic markers can be provided within the continuously changing magnetic distribution. These magnetic singularities help improve the accuracy of determining the position and orientation of the information provision area 11.

[0063] It should be noted that, in this example, a sheet-like magnetic marker is illustrated, but a cylindrical monolithic magnetic marker composed of a plastic magnet may also be used. In the case of a cylindrical magnetic marker, it is preferably embedded in the road surface by being accommodated in a hole provided through the road surface.

[0064] In this case, for example Figure 1 、 Figure 2 As shown, the boundaries of the partitions 110 forming the information provision area 11 are clearly indicated by lines. The boundaries of the partitions 110 may be imaginary boundaries, and lines are not necessarily required to indicate the boundaries.

[0065] In this example, S-pole magnetic markers 10S are arranged at three corners of the square-shaped information provision area 11 as marks 100 capable of identifying the position and orientation of the information provision area 11. For example, S-pole magnetic markers 10S arranged at three diagonal positions of the square-shaped information provision area 11 may be used as marks 100. Any S-pole magnetic marker 10S used for the mark 100 may be arranged as long as the position and orientation of the information provision area 11 can be identified.

[0066] In this example, as the magnetic marker 10 used for the sign 100, a magnetic marker 10S for the S pole is exemplified, and as the magnetic marker 10 for providing information, a magnetic marker 10N for the N pole is exemplified. The magnetic marker 10S for the S pole and the magnetic marker 10N for the N pole may also be reversed. Alternatively, the sign 100 may be formed by a combination of the magnetic marker 10S for the S pole and the magnetic marker 10N for the N pole, and the same combination may be used to represent information. For example, Figure 10 In this way, magnetic markers 10 for marking 100 can be arranged in the partitions 110 at the corners of the four positions of the square-shaped information providing area 11, and magnetic markers 10 for providing information can be arranged in the remaining partitions. As the magnetic marker 10 for marking 100, for example, a combination of a magnetic marker 10N with an N pole at one position and a magnetic marker 10S with an S pole at the other three positions can be adopted. As the magnetic marker 10 for providing information, as shown in the figure, a combination of a magnetic marker 10N with an N pole and a magnetic marker 10S with an S pole can also be adopted. Alternatively, information can be provided by configuring magnetic markers 10 of any type of magnetic polarity.

[0067] In this example, a square-shaped area is illustrated as the information providing area 11 , but the shape of the information providing area 11 is not limited to a square, and various shapes such as a triangle, a pentagon, a hexagon, a circle, an ellipse, and a rhombus can be adopted.

[0068] (Example 2)

[0069] This example is an example of a method for forming a modified information provision area 11 in the vehicle-oriented system 1 according to the first embodiment. Figures 11 to 13 This content will be explained.

[0070] In Example 1, an information provision area ( Figure 2 11 in the figure), and magnetic markers 10 are arranged in each partition (reference numeral 110 in the figure) of the information providing area 11. Instead, in this example, a square-shaped attachment sheet 11S (an example of a sheet body) is prepared to form the information providing area 11, and this sheet 11S is attached to the pavement surface. The attachment sheet 11S is a sheet formed by bonding the magnetic markers 10 to the surface of a base sheet 118. The base sheet 118 is, for example, a sheet formed by impregnating glass fiber cloth with molten asphalt (an example of a pavement material).

[0071] In the sheet 11S for attachment, the magnetic marker 10S forming the S pole of the mark 100 is arranged at the corners of three positions, and the magnetic marker 10N of the N pole is arranged in a manner to form a prescribed configuration pattern. A roll 11R formed by winding a continuous sheet connected to a plurality of sheets 11S for attachment can also be used. If it is in the form of a roll 11R, the storage and transportation of the plurality of sheets 11S for attachment become easy. If the front end of the continuous sheet is unwound from the roll 11R and cut at a prescribed position, the sheet 11S for attachment can be obtained. It should be noted that the operation of cutting out the sheets 11S for attachment one by one can be implemented during the construction of the sheet 11S for attachment, or can be implemented in advance in a factory, etc.

[0072] During installation, the sheet 11S may be heated to melt or soften the asphalt impregnated into the base sheet 118, allowing the asphalt to function as an adhesive. Alternatively, the asphalt used as the paving material of the pavement surface may be preheated before the sheet 11S is applied. In this case, the heat of the pavement surface can be used to heat the asphalt in the sheet 11S, causing it to melt or soften, allowing the sheet 11S to be bonded.

[0073] In the information providing area 11 formed by attaching the sheet 11S for attachment, the S-pole magnetic markers 10S arranged at the corners of three positions serve as marks 100 for determining the position and orientation of the information providing area 11. Therefore, when attaching the sheet 11S for attachment, it is not necessary to align the orientation of the sheet 11S with the prescribed direction. In addition, the position of the information providing area 11 can be determined using the mark 100, so when attaching the sheet 11S, there is little need for alignment. If there is little need for alignment of the sheet 11S and there is no need to align the orientation of the sheet 11S, the attachment sheet 11S can be constructed with high operability, and the information providing area 11 can be formed efficiently. For example, Figure 12 Thus, when the information providing area 11 is provided in the lane 500 where ordinary vehicles travel, the orientation of the attachment sheet 11S may be varied.

[0074] It should be noted that if Figure 13 As shown, a holding sheet 119 such as a silicone sheet or a polyethylene film may be used instead of the base sheet 118. The holding sheet 119 such as a silicone sheet or a polyethylene film is less susceptible to adhesive force due to adhesive materials and is relatively easy to peel off.

[0075] Preferably, a retaining sheet 119 with the magnetic marker 10 attached is prepared in advance, and the retaining sheet 119 is pressed against the paved surface coated with the adhesive material, with the magnetic marker 10 facing inward. Subsequently, by peeling off the retaining sheet 119, the magnetic marker 10 can be removed while being transferred and adhered to the paved surface. Peeling off the retaining sheet 119 forms the same information provision area 11 as in Example 1.

[0076] It should be noted that other structures and effects are the same as those of Example 1.

[0077] While specific examples of the present invention have been described in detail above, as in the examples, these examples merely disclose one example of the technology encompassed by the technical solution. Of course, the technical solution should not be interpreted as limiting based on the structures, numerical values, etc. of the specific examples. The technical solution encompasses various modifications, alterations, or appropriate combinations of the specific examples, utilizing known technologies and the knowledge of those skilled in the art.

[0078] Description of Reference Numerals

[0079] 1 Vehicle-oriented systems

[0080] 10 Magnetic Marker

[0081] 10N N-pole magnetic marker

[0082] 10S S-pole magnetic marker

[0083] 101 magnet sheet

[0084] 100 logo

[0085] 11 Information provision area

[0086] 110 partitions

[0087] 5 vehicles

[0088] 500 lanes

[0089] 51 sensor array

[0090] 510 Magnetic Sensor

[0091] 512 detection processing circuit

[0092] 55 control unit

[0093] 550 Database

[0094] 57 road cameras.

Claims

1. A vehicle-oriented system that provides information to the vehicle side using an information providing area provided on a plane for vehicle movement, characterized in that: In the information providing area, a magnetic distribution representing the information is formed, and a mark capable of identifying the position and orientation of the information providing area is provided. The magnetic distribution is formed by arranging at least one monolithic magnetic marker in the information providing area. The information providing area is a two-dimensional area in a rectangular shape where the magnetic markers are two-dimensionally arranged. The marker is a magnetic marker obtained based on the magnetic polarity of the magnetic marker detectable on the vehicle side, and is composed of three magnetic markers arranged at three of the four positions forming the corners of the rectangular two-dimensional area.

2. The vehicle-oriented system according to claim 1, wherein: The marker is a magnetic marker that can be detected magnetically.

3. The vehicle-oriented system according to claim 1, wherein: The information providing area is an area formed by placing a sheet made of a material mixed with magnetic powder on the plane. The magnetic distribution is a magnetic distribution obtained by magnetizing the sheet.

4. The vehicle-oriented system according to claim 1, wherein: The information providing area is an area formed by arranging a sheet having at least one single-piece magnetic marker arranged on the surface of the substrate on the plane.

5. The vehicle-oriented system according to claim 3 or 4, wherein: The sheet body is cut out from a continuous sheet from which a plurality of sheets can be cut out.

6. The vehicle-oriented system according to claim 3 or 4, wherein: The sheet body includes paving material of the paving surface.

7. The vehicle-oriented system according to claim 1, wherein: The information providing area is formed by transferring at least one single-piece magnetic marker from a holding sheet having at least one single-piece magnetic marker arranged on a surface thereof to the plane.

8. The vehicle-oriented system according to claim 1, wherein: The magnetic distribution is a distribution in which the magnetic intensity changes continuously. In the information providing region, at least one single-piece magnetic marker is arranged in the magnetic distribution as a magnetic singular point.

9. The vehicle-oriented system according to claim 1, wherein: The mark can be detected in a captured image of the information provision area.

10. The vehicle-oriented system according to claim 9, wherein: The marking is arranged in such a way that at least a portion overlaps with respect to the magnetic distribution.

11. The vehicle-oriented system according to claim 9 or 10, wherein: The marker is arranged on the outer periphery of the information providing area.

12. The vehicle-oriented system according to any one of claims 1 to 4 and 7 to 10, wherein: The information providing area can provide different information to the vehicle according to the direction in which the vehicle enters the information providing area.

13. The vehicle-oriented system according to claim 1, wherein: The marker is composed of a combination of a magnetic marker that can be magnetically detected and an appearance marker that can be detected in a captured image of the information provision area.

Images