JP4682660B2 - Map data inspection apparatus and map data inspection method - Google Patents

Description

  The present invention relates to a map data inspection apparatus and a map data inspection method for inspecting data in a map database in which the position of an address having a ranking system along a road is indicated by position coordinates on a map.

Conventionally, in foreign countries such as Taiwan, address lots are assigned so as to have a ranking system along the road. In this case, an area facing one side of the road has an even number and a rank system (address ranking system), and an area facing the other side of the road has an odd number and a rank system. Then, the operator inputs the position coordinates on the map corresponding to the actual position of the address into the map database (storage means) to create the map database. Although not related to the present invention, Japanese Patent Application Laid-Open No. H10-228867 discloses a technique for correcting a note of an electronic map when the electronic map on the network does not match the actual geographical situation.
JP 2003-16084 A

  In the prior art, since the operator inputs the position coordinates of the address manually, there is a risk that position coordinates that do not match the address position may be input due to a work mistake or the like. In this case, erroneous data may be used as it is.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to perform map data inspection that can easily and automatically inspect a mismatch between an actual address position and position coordinates and contribute to the creation of an accurate map database. An apparatus and a method for inspecting map data are provided.

In order to achieve the above object, the invention of claim 1 is a lot number indicated by a position coordinate on a map of a straight road node and attached to an address on one side of the straight road. The position of the address with the order system where the ordered lot number is given in one direction of the road, and the lot number assigned to the address on the other side of the road, and in the one direction of this road A map data inspection device for inspecting data in a map database indicating the position of an address with a rank system where a lot number is attached and the position coordinates on a map with a rank system in the same direction as the direction of the road. there are, from said map database, the one two addresses should be both two addresses or on the other side there should together side sequentially picked up along the dominance hierarchy, two housing picked up the road And dominance hierarchy of lot number of, it is determined whether there is a dominance hierarchy and the integrity of the position coordinates of the two addresses, further two addresses should be both on one side or the other side of the road and the pickup The determination means for determining whether or not the coordinate line connecting the position coordinates of the two and the coordinate line connecting the position coordinates of the two nodes on the road to which the two addresses should correspond , and this determination means, When it is determined that there is no consistency, it is determined that there is an error in the position coordinates of the address , and further, it is determined that there is an error in the position coordinates of the address or the road position coordinates when it is determined that they intersect. And an error determining means for determining .

According to this, from the map database, the one two addresses should be both two addresses or on the other side there should together side sequentially picked up along the dominance hierarchy of the road, the two addresses picked up lot number It is determined whether or not there is consistency between the order system of the two addresses and the position system of the position coordinates of the two addresses. If it is determined that there is no consistency, it is determined that there is an error in the position coordinates of the address. Is done. Accordingly, the mismatch between the actual address position and the position coordinates can be easily and automatically inspected, and it can contribute to the creation of an accurate map database.

Further, in claim 1, a coordinate line connecting the position coordinates of two addresses that should be on one side or the other side of the picked-up road, and two nodes on the road to which the two addresses should correspond. It is determined whether or not the coordinate line connecting the position coordinates intersects, and it is determined that there is an error in the position coordinates of the address or the position coordinates of the road when it is determined to intersect. According to this, when a ranking address is set along one side (or the other side) of the road, if there is an error in the position coordinates of the address or the position coordinates of the road, the error is judged well. can do.

When the two addresses are picked up sequentially, two addresses that are adjacent on one side of the road and two addresses that are adjacent on the other side may be picked up sequentially (invention of claim 2 ). In this way, the input position coordinates of all addresses can be sequentially determined.

Further, the map data inspection method according to the third and fourth aspects of the invention can achieve the same effects as those of the first and second aspects .

  An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a block of an electrical configuration of the map data inspection apparatus 1. The map data inspection device 1 includes a control circuit 2, an operation switch group 3, a display device 4, and an audio output device 5. The control circuit 2 includes a CPU 6, a RAM 7, a ROM 8, and the like, and the control circuit 2 corresponds to a determination unit and an error determination unit according to claims 1 and 2, respectively.

  The operation switch group 3 is a means for inputting an inspection start command and various kinds of information to the control circuit 2, and includes a keyboard, a touch panel switch formed on the display device 4, and the like. The display device 4 is composed of a color liquid crystal display, for example, and can display inspection results and inspection statuses. The voice output device 5 notifies the guidance necessary for the operation and the end of the inspection by voice.

  The control circuit 2 can be connected to a storage device 8 which is a storage means storing a map database. The storage device 8 is composed of, for example, a hard disk and a hard disk drive that drives the hard disk. The map database stored in the storage device 8 includes position coordinates on the map of addresses having a ranking system along the road and position coordinates related to the road shape.

FIG. 2 schematically shows the actual road shape. As shown by reference numerals Ad3 and Ad11 in FIG. 2, for example, the address where the lot number is odd is ranked along one side of the road A (rank system where the lot number increases in the direction of the arrow α in this case). Also, along the other side of the road A, as indicated by the symbols Ad2, Ad4, Ad6, Ad8, Ad14, addresses with even numbers are set with a ranking system. As can be seen from the above, odd-numbered lot numbers are lot numbers assigned to one side of road A, and even-numbered lot numbers are lot numbers assigned to the other side of road A.

  FIG. 3 shows the position coordinates regarding the address and the road shape. As the position coordinates related to the address, the position coordinates Z3 (YZ3 (latitude), XZ3 (longitude)), Z11 (YZ11, XZ11), Z2 (corresponding to each address Ad3, Ad11, Ad2, Ad4, Ad6, Ad8, Ad14 are described. YZ2, YZ2), Z4 (YZ4, XZ4), Z6 (YZ6, XZ6), Z8 (YZ8, XZ8), Z14 (YZ14, XZ14) are input to the storage device 8 by the operator. In addition, in FIG. 2, the example in which the position coordinate is normally input with respect to each address is shown coordinately. FIG. 4 also shows a coordinate example in which the position coordinate Z4 corresponding to the address Ad4 is incorrect, and the position coordinate Z6 corresponding to the address Ad6 and the position coordinate Z11 corresponding to the address Ad11 are also incorrect.

  As the position coordinates regarding the road, the node A (n), A (n + 1),... On the road A, and the position coordinates ZAn (YZAn, XZAn) of the nodes B (n), B (n + 1),. , ZAn + 1 (YZAn + 1, XZAn + 1),..., ZBn (YZBn, XZBn), ZBn + 1 (YZBn + 1, XZBn + 1),. The above nodes are road intersections, branch points, and major nodes on the map. A coordinate line connecting each node is defined as a link.

  The control circuit 2 stores an inspection program in the ROM 7, for example, and the control contents of the control circuit 2 will be described with reference to FIG. When the operation switch group 3 is appropriately operated and the inspection program is executed, first, in step S1 of FIG. 5, the position coordinates corresponding to two adjacent addresses having odd numbers are picked up (selected and selected) from the storage device 8. Read). For example, position coordinates Z3 (YZ3, XZ3) and Z11 (YZ11, XZ11) corresponding to Ad3 and Ad11 are picked up. And the address system of address Ad3, Ad11 of the lot number “3”, “11” (increase direction of the lot number) and the rank system of the position coordinates Z3 (YZ3, XZ3), Z11 (YZ11, XZ11) (latitude or longitude) By calculating whether or not there is a correlation between the odd number of the two addresses and the position coordinates of the addresses (step S2). If there is, the two position coordinates are determined to be correct, and the process proceeds to step S4. If there is no matching of the rank system, it is determined in step S3 that there is an error in the position coordinates of the two addresses, and the RAM 6 stores them. Remember. In step S3, the display device 4 and the audio output device 5 display and notify that there is an error. The position coordinates are corrected and input based on the determination result stored in the RAM 6.

  In step S4, a coordinate line that connects the position coordinates Z3 (YZ3, XZ3) and Z11 (YZ11, XZ11), and the position coordinates ZAn (YZAn, XZAn), ZAn (YZAn +) of the node A (n) on the road A 1, XZAn + 1) is determined whether or not a coordinate line that is a line connecting with XZAn + 1) intersects. If they do not intersect, these position coordinates Z3 (YZZ3, XZ3), Z11 (YZ11, XZ11), ZAn (YZAn, XZAn), ZAn (YZAn + 1, XZAn + 1) are determined to be correct, and the process proceeds to step S6. If it is determined that the vehicle intersects, the process proceeds to step S5, where the address position coordinates Z3 (YZZ3, XZ3), Z11 (YZ11, XZ11), or the position coordinates Zan (YZAn) of the node A (n) on the road A , XZAn) and ZAn (YZAn + 1, XZAn + 1) are determined to be erroneous, stored, displayed, and notified.

  In step S6, the address coordinates Z2 (YZ2, XZ4) and Z4 (YZ4, XZ4) corresponding to adjacent addresses with even numbers, such as Ad2 and Ad4, are picked up, and the position coordinates Z2 (YZ2) of these two even addresses. , XZ2), Z4 (YZ4, XZ4), the same as steps S2 and S4 described above is performed in steps S7 and S8.

That is, if it is determined in step S7 that the position coordinates of the two addresses are not consistent with the address number of the address, it is determined in step S3 that there is an error in the two position coordinates as described above, and this is stored. Display and inform. If it is determined in step S8 that the coordinate line that connects the position coordinates of the two addresses intersects with the coordinate line that connects the road nodes, the position of the two addresses in step S5 as described above. It is determined that either the coordinates or the road position coordinates are incorrect, stored, displayed, and notified.
In step S9, one of the addresses of the odd odd number is left, and the address of the odd number of the odd number next to the address is specified, and one of the addresses of the two odd numbers is left and the number of the odd number adjacent to the odd number. The address of the lot number is designated, and the process returns to step S1.

  Here, as shown in FIG. 3, when the position coordinates corresponding to each address and the position coordinates of the road are correctly input, no error is determined in the above flowchart. However, as shown in FIG. 4, if the coordinate Z11 of the address Ad11 is erroneously input as the position coordinate on the other side of the road A, it is determined in step S4 that the vehicle intersects. Further, if the coordinates Z4 of the address Ad4 and the coordinates Z6 of the address Ad6 are erroneously input at positions where they have been interchanged, it is determined that there is no consistency in step S7.

  According to the present embodiment, when there is no error in the position coordinates of any of the two addresses that have been picked up, the two position coordinates have a ranking system that correlates with the address ranking system. In other words, it indicates consistency, but if there is an error in the position coordinates of any address, it does not indicate consistency. Accordingly, since it can be determined whether or not there is an error by determining that there is consistency, the determination means determines whether there is an error in the position coordinate of the address by determining that there is no consistency. Accordingly, the mismatch between the actual address position and the position coordinates can be easily and automatically inspected, and it can contribute to the creation of an accurate map database.

  Further, according to the present embodiment, it is possible to satisfactorily determine the error not only in the address position coordinates but also in the road position coordinates. That is, when the position coordinates of the address that should be on one side of the road are input on the opposite side across the road, the coordinate line connecting the position coordinates of the address and other addresses (two addresses picked up) And the coordinate line connecting the position coordinates of any two points on the road intersect. Further, even when there is an error in the position coordinates of the road, the coordinate line connecting the position coordinates of the two addresses may intersect with the coordinate line connecting the position coordinates of any two points on the road. In this case, according to the present embodiment, if it is determined that the coordinate lines intersect, it is determined that there is an error in the address position coordinates or the road position coordinates. Note that the input position coordinates of all addresses can be sequentially determined by sequentially picking up the two addresses.

  Note that the storage means for storing the map database is not limited to the hard disk drive, and the map database may be divided by a plurality of storage means as the storage means. Further, the position coordinates relating to the address and the position coordinates relating to the road shape may be stored in separate storage means. Further, the map database may be provided in an Internet server. In this case, it is only necessary that the server and the map data inspection apparatus can communicate with each other via a wide area network.

The block diagram of the electrical constitution of the map data inspection apparatus which shows one Example of this invention Diagram showing the actual road shape Diagram showing position coordinates Diagram showing an example when the position coordinates are incorrect Flow chart of control contents

Explanation of symbols

In the drawings, 1 is a map data inspection device, 2 is a control circuit (control means, error determination means), and 8 is a storage device.

Claims (4)

The straight road node is indicated by the position coordinates on the map, and it is a lot number attached to an address on one side of the straight road, and an ordered lot number is given in one direction of this road The position of the address with the ranking system and the position of the address with the ranking system that is assigned to the address on the other side of the road and is assigned an order number in one direction of the road A map data inspection device for inspecting data in a map database indicated by position coordinates on a map having a ranking system in the same direction as the one direction of the road,
From the map database, two addresses that should be together on the one side of the road or two addresses that should be together on the other side are sequentially picked up in accordance with the ranking system, and the ranking system of the lot numbers of the two addresses picked up, A coordinate line connecting the position coordinates of the two addresses that should be on one side or the other side of the picked-up road is determined whether or not there is consistency with the order system of the position coordinates of the two addresses. Determining means for determining whether or not the coordinate line connecting the position coordinates of the two nodes on the road to which the two addresses should correspond;
When it is determined by this determination means that there is no consistency, it is determined that there is an error in the position coordinates of the address. An apparatus for inspecting map data, comprising: error determination means for determining that there is an error. The map data inspection apparatus according to claim 1,
2. The map data inspection apparatus according to claim 1, wherein when the two addresses are picked up sequentially, two addresses adjacent on one side of the road and two addresses adjacent on the other side are picked up sequentially. The straight road node is indicated by the position coordinates on the map, and it is a lot number attached to an address on one side of the straight road, and an ordered lot number is given in one direction of this road The position of the address with the ranking system and the position of the address with the ranking system that is assigned to the address on the other side of the road and is assigned an order number in one direction of the road A map data inspection apparatus comprising a determination means and an error determination means inspects data in a map database indicated by position coordinates on a map having a ranking system in the same direction as one direction of the road. ,
The determination means sequentially picks up two addresses that should be on the one side of the road or two addresses that should be on the other side from the map database according to a ranking system, and the address numbers of the two addresses that have been picked up And whether or not the order system of the two addresses and the order system of the position coordinates of these two addresses are consistent,
The error determination means determines that there is an error in the position coordinates of the address when it is determined that there is no consistency,
Further, the determination means includes a coordinate line that connects position coordinates of two addresses that should be on one side or the other side of the picked-up road, and position coordinates of two nodes on the road that the two addresses should correspond to. Determine whether the coordinate line connecting
The map data inspection method , wherein the error determination means determines that there is an error in an address position coordinate or a road position coordinate when the intersection is determined. The map data inspection method according to claim 3,
When the determination means sequentially picks up the two addresses, two addresses that are adjacent on one side of the road and two addresses that are adjacent on the other side are picked up sequentially. Method.

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