JP4443160B2 - Stop map production system - Google Patents

Description

  The present invention relates to a map production system in which the positions of a plurality of stops through which a bus that operates a regular route (hereinafter referred to as a system), for example, a route bus, passes.

  Conventionally, a map showing the position of a stop on a city map (hereinafter referred to as a stop map) has been used for route bus operation management and the like. Bus stop maps are created manually by bus operators' employees plotting one city map at a time, using addresses reported to local governments when establishing, abolishing, or moving bus stops. Conventionally, maps have been generally created manually in this way, so that no prior art document suitable for presentation in explaining this case could be found.

  However, a single bus operator usually handles multiple systems. Therefore, the number of stops managed by the bus operator is considerable. For this reason, the conventional stop map as described above has a problem that it is very inefficient because it takes a lot of human and time burden to produce. In addition, since the map is created manually, there is a problem that the map is plotted at an incorrect position or a shifted position with respect to the position where the stop is originally installed. Furthermore, with the conventional production method, it is extremely difficult to flexibly and quickly reflect changes such as new establishments or movements of stops.

  In particular, in the vicinity of a station terminal or near a large intersection, a plurality of stops belonging to a plurality of types of systems are reported under the same name. In addition, the installation position is often different between the upstream line and the downstream line even in the same stop of the same system. When multiple stops are installed within a certain narrow area, the conventional stop map displays these stops together or displays them at an approximate location away from the actual location. There was no choice but to be reliable.

  As described above, the conventional stop map with low position accuracy and low reliability hinders a bus operator from managing a route bus smoothly and efficiently. Furthermore, by converting the map into digital data, as part of a bus location service that has been frequently used in recent years, there is a possibility that reliability may be lowered due to lack of accuracy when it is provided as stop position information to end users and map operators. .

  In addition, the work of temporarily moving the bus stop by construction in the vicinity of the installation location or returning it to the original installation location after the completion of the construction is also performed based on the address that the employee has reported to each local government. It was. Therefore, it has been difficult to install at an accurate position at the address in the notification. If there is a change in the installation position of an indicator such as a stop, it may cause unnecessary confusion for those using the indicator. Therefore, improvement of the index itself has been desired from the viewpoint of improving the accuracy of the installation position.

  Accordingly, in view of the above circumstances, the present invention can create a stop map in which the position of the stop is represented with high accuracy, and if there is a change in the installation position of the stop, the stop map It is an object of the present invention to provide a stop map creation system that can quickly reflect changes, and an index that is suitable for the stop map creation system and can be installed at a target location with high accuracy.

  Therefore, the stop map creation system according to claim 1 is a first wireless communication that transmits at least a position measurement value with position detection means for detecting a position measurement value related to the installation position of the stop by GPS (Global Positioning System). A bus having a vehicle-mounted device communicable with the first wireless communication means, and a database server having map information of an area including the installation positions of the plurality of stops. The device communicates with the first wireless communication means at each stop and measures the position of the stop every time the bus enters a wireless communication range at each stop while operating on a predetermined route via a plurality of stops. Value is obtained, and stop position information relating to the stop is generated based on the position measurement value, and the database server is based on the stop position information generated by the vehicle-mounted device. Characterized by producing a stop map by displaying the positions of a plurality of stops in Fig information.

  As described above, according to the stop map creation system according to claim 1, a bus that is actually in operation collects the position measurement values of each stop and automatically displays the stop position information including the position measurement values. Therefore, it is possible to drastically reduce the human and time burden required for making the stop map. In addition, since the position measurement value actually detected by the stop itself is used, there is no deviation between the actual stop position and the position displayed on the stop map, and a stop map with very high accuracy is created.

  In addition, as described above, the stop map creation system according to claim 1 is characterized in that the stop map is automatically created by actually operating the bus. For this reason, there is no need to manually plot the city map based on the address (record) of the stop reported to each local government. Therefore, when a system or a stop is newly established, the newly established state can be accurately reflected on the stop map. Moreover, according to the stop map preparation system according to claim 1, stop position information of the stop can be collected at all times by using a bus that operates every day. Therefore, since the stop position information of each stop can be repeatedly acquired, the accuracy of the position of each stop displayed on the stop map can be improved. The advantage of being able to collect stop position measurements at all times is not limited to this. For example, even when the installation position of an existing stop is moved or abolished, according to the present invention, it is impossible to collect information from each stop or the content of information changes. As a result, the movement or abolition of the stop can be quickly reflected in the stop map, which is very useful.

  Said 1st radio | wireless communication means can always transmit the said stop location information to the radio | wireless communicable range (Claim 2). In this case, from the viewpoint of security, the stop position information is encrypted, and it is desirable that the vehicle-mounted device includes an encryption / decryption unit that decodes the encrypted stop position information.

  As another aspect, the stop includes an authentication unit that authenticates the bus when a connection request is received from a bus that has entered the wireless communicable range, and the first wireless communication unit includes the bus authenticated by the authentication unit. It is also possible to adopt a configuration in which the stop position information is transmitted only for (No. 4).

  According to the invention described in claim 5, the bus further includes storage means for storing the generated stop position information, and the database server has information reading means for reading the stop position information from the storage means, and the information A stop map can be created using stop position information periodically read by the reading means. Specifically, the term “regular” may mean every time the daily operation is completed, or every relatively long period such as one week or one month. As the storage means, a portable recording medium represented by a memory card and an apparatus capable of recording information on the recording medium are conceivable. In this case, the information reading means is assumed to be a device (for example, a card reader) that reads information from the recording medium. The invention according to claim 5 has an advantage that it can be configured at a low cost as compared with a configuration using wireless communication means to be described later, because communication costs are not required.

  According to the invention described in claim 6, the stop map creation system further includes second wireless communication means for transmitting the stop position information from the bus to the database server, and the database server transmits the wireless communication means via the wireless communication means. A stop map can be created using the stop position information. According to this configuration, when the stop position information is generated, it can be immediately transmitted to the database server (claim 7). The inventions according to claims 6 and 7 can update the position of the stop on the stop map in real time as compared with the storage means described above. Thus, even if the location of the stop is suddenly changed due to an unforeseen situation, or a stop is newly established on a temporary flight, the changed stop map can be provided immediately.

  More specifically, the plurality of stops have specific information for specifying each stop, and the first wireless communication means also transmits the specific information at the same time when transmitting the position measurement value. It is desirable to generate the stop position information by associating the position measurement value with the specific information (claim 8).

  Moreover, as another aspect, the vehicle-mounted device acquires the specific information related to the passing stop from the pre-input data, and associates it with the position measurement value transmitted from the passing stop. May be generated (claim 9). For example, when the vehicle-mounted device also has a function of executing a broadcast process on at least one of the inside and the outside of the vehicle, the data includes broadcast data used for the broadcast process. The specific information can use an ID related to the stop associated with the broadcasting data used to guide the stop through which the bus passes (claim 10).

  In this way, by making the stop position information in a state in which the specific information is associated with the position measurement value, the burden of processing for specifying each stop from the position measurement value is reduced when creating a stop map in the database server. Will be.

  According to the invention described in claim 12, the database server can also display the position of the stop on the map information by using at least a part of the stop position information generated on one bus.

  Furthermore, when there are a plurality of stop position information including the same specific information, the database server can average the position measurement values included in each stop position information and convert it to a single position measurement value. Thereby, even if the on-board device of the bus generates a plurality of stop position information by passing the bus a plurality of times for the same ID, that is, the same stop, if it is reflected in the stop map, The stop is displayed at the optimum position (that is, the position closest to the actual stop position) based on the plurality of stop position information.

  As described above, in the present invention, the bus in operation collects the stop position information including the position measurement value of the stop, which is transmitted from the stop provided with the position detection means. And by automatically creating a stop map using the collected stop location information, the human and time burdens that have been required in the past are reduced, and the accuracy of the actual position is extremely small. High stop map can be provided. That is, the stop map creation system according to the present invention can easily create an accurate stop map when a system is newly established. Moreover, since the position measurement values are always collected by the operating bus, the new establishment, temporary or permanent movement, or abolition of the existing system can be reflected on the stop map very quickly.

  Furthermore, by using the present invention, when constructing a bus location system that is widely used in recent years, it is possible to easily and inexpensively realize the input processing of the bus stop. The bus location system constructed using the present invention can provide a highly reliable service because the position of the bus stop is very accurate.

  Moreover, if the stop map produced by implementing the stop map preparation system which concerns on this invention is used, operation management of a bus operator will become simple and accurate. Furthermore, by using the stop map in the commuter pass ticketing system, it is possible to accurately grasp and confirm the route and boarding / departure stop that you use visually, and the convenience of commuter pass purchasers can be improved. .

  FIG. 1 is a diagram showing a schematic configuration of a stop map creation system 100 according to an embodiment of the present invention. As shown in FIG. 1, the stop map creation system 100 includes a bus 1, a stop 2, and a database server 3. The stop map preparation system according to the present invention is intended to represent on a map the positions of all stops installed in a plurality of systems, more precisely in all systems of a specific bus operator. However, the process of acquiring the position of the bus stop in operation is substantially the same regardless of which bus stop is used in any system. Therefore, in the following text, for the sake of convenience, a specific bus 1 will be described in detail as an example of a process for acquiring the position of a specific stop 2.

  The bus 1 includes an in-vehicle device 11, an operation unit 12, a speaker 13, a card slot 14, a memory card 15, and a first antenna 16. The stop 2 includes a first CPU 21, a GPS 22, a memory 23, a communication unit 24, and a second antenna 25. The stop 2 corresponds to an index according to the present invention.

  The vehicle-mounted device 11 is a control device for executing processing necessary during bus operation. For example, the vehicle-mounted device 11 reads out text data corresponding to the broadcast content designated by the driver operating the operation unit 12 from a memory (not shown), converts the text data into voice data, and broadcasts it inside or outside the vehicle via the speaker 13. To do. The card slot 14 is a drive into which the memory card 15 is inserted and removed from the outside. Examples of the memory card 15 include an IC card handed to the driver by the bus operator at the start of business.

  The first CPU 21 controls each element constituting the stop 2, such as the GPS 22. The GPS 22 of the stop 2 acquires a position measurement value related to the installation position of the stop 2 via an artificial satellite at all times or regularly. The position measurement value of this embodiment consists of latitude and longitude. In the memory 23, specific information for specifying the stop 2 is written in advance by the bus operator. The specific information of the present embodiment is an ID assigned to specify each stop when installing each stop. The communication unit 24 and the second antenna 25 transmit signals to the outside under the control of the first CPU 21.

  FIG. 2 is a sequence showing processing performed by the bus 1 and the stop 2 in the stop map creation system 100. The stop 2 is a broadcast signal (hereinafter referred to as a broadcast signal for convenience) within a narrow range (wireless communication range) of several meters to several tens of meters using the communication unit 24 and the second antenna 25 under the control of the first CPU 21. ) When the bus 1 enters the wireless communicable range, the bus 1 receives the broadcast signal via the first antenna 16 (S1).

  When the broadcast signal is received, the bus 1 sends the identification information stored in a memory (not shown) and certifying that it is the bus 1 to the stop 2 via the first antenna 16 under the control of the vehicle-mounted device 11. Transmit (S3). Here, examples of the identification information include a bus identification ID and a password assigned to each bus.

  When receiving the identification information from the bus 1, the stop 2 uses the identification information to authenticate whether or not the bus 1 is a regular bus registered by the bus operator (S5). When the authentication is completed, the stop 2 transmits the position measurement value obtained by the GPS 22 and the specific information read from the memory 23 to the bus 1 (S7).

  In the bus 1, the vehicle-mounted device 11 generates stop position information regarding the stop 2 using the position measurement value and the specific information transmitted from the stop 2 (S9). The generated stop position information is stored in the memory card 15 via the card slot 14 (S11). In the process of S7, if the vehicle-mounted device 11 associates the position measurement value and the stop position information with each other, the process of S9 can be simplified or omitted.

  The bus 1 operates one or a plurality of systems while repeating the series of processes shown in FIG. 2 every time it passes through the bus stop. The bus 1 is routed to the office where the database server 3 is installed when the daily operation is completed. As shown in FIG. 1, the database server 3 includes a second CPU 31, a card reader 32, a position database 33, a name database 34, a map database 35, an input device 36 such as a keyboard, and a monitor 37. The location database 33 stores stop location information. The name database 34 stores the name information of each stop in a state associated with the ID. The map database 35 stores digital data of a map including all systems handled by the bus operator.

  When the bus 1 is forwarded to the office, the memory card 15 is extracted from the card slot 17 and inserted into the card reader 32 of the database server 3. A part of the table of the stop position information written in the memory card 15 is shown in FIG. As shown in FIG. 3, the stop position information is stored as a table in which ID as specific information and latitude and longitude as position measurement values are associated with each other. Further, as shown in FIG. 3, the stop position information need not be recorded separately for each system, but is recorded for each stop (more specifically, for each ID). The ID shown in FIG. 3 is composed of a total of 6 digits, a 4-digit first half stop code and a second 2-digit post code. The stop code is a code that is assigned according to the name of the stop. Here, for example, the same name may be given to each stop regardless of being installed in a plurality of different places in up and down lines and a plurality of systems. Therefore, even if they have the same name, each stop can be identified by setting the girder code to a different value.

  The card reader 32 reads all stop position information stored in the memory card 15 under the control of the second CPU 31 and stores it in the position database 33. At the time of storage, each stop position information is overwritten and saved on the stop position information already stored in the database 33 (for example, the stop position information collected during the previous day's operation).

  In storing the stop position information in the position database 33, the second CPU 31 appropriately performs the processing described below on the stop position information read from the memory card 15. First, when there are a plurality of stop position information having a specific ID in the memory card 15, that is, there are a plurality of stop position information for the same stop, the second CPU 31 of this embodiment mobile phone performs the following processing. In general, GPS has some errors. Therefore, the position measurement value at the same point appears as a Gaussian distribution as the number of measurements increases. Therefore, the second CPU 31 calculates a single position measurement value by averaging the position measurement values (latitude and longitude) in each stop position information. Then, the stop position information including the averaged position measurement value is stored in the position database 33 as stop position information having a specific ID. As a result, the non-uniformity of the stop position information caused by the error of the GPS 22 is eliminated, and the stop map with higher accuracy is realized.

  For example, in FIG. 3, it can be seen that the memory card 15 stores three pieces of stop position information related to the stop of ID 1019-01. Therefore, the second CPU 31 averages the position measurement values in the three stop position information and converts them into a single position measurement value. Then, the stop position information d including the single position measurement value is stored in the position database 33 as stop position information regarding the stop of ID 1019-01. This averaging process of the position measurement values is always performed when there are a plurality of position measurement values having a specific ID. Therefore, not only when there are a plurality of position measurement values having the same ID in one memory card 15 as described above, but also when there are a plurality of position measurement values having the same ID across a plurality of memory cards. Each position measurement is averaged and converted to a single position measurement.

  In addition, when the stop location information containing specific ID is not preserve | saved at the memory card 15, it is possible that communication with the bus | bath 1 and the stop where this specific ID was allocated failed. Therefore, in that case, the stop position information up to the previous day is used as it is. However, if the stop position information is not stored in the memory card 15 continuously for a predetermined number of times, the second CPU 31 determines that the stop to which the ID is assigned has been abolished, and the ID is determined from the position database 33. The stop position information related to the stop assigned with is deleted. The predetermined number of times as a reference for automatically deleting the stop position information is set to an arbitrary number by the bus operator using the input device 36. The stop position information can be erased manually from the input device 36.

  When the bus operator inputs an instruction to create a stop map from the input device 36, the second CPU 31 displays the stop position information of each stop read from the position database 33 on the map digital data read from the map database 35. . And the name information corresponding to ID of each stop position information is read from the name database 34 as needed, and is displayed on a map. The produced stop map is displayed on the monitor 37.

  The above is description of the stop map preparation system 100 of embodiment. Here, the bus stop 2 of the present embodiment is configured to be wirelessly connectable to a terminal device possessed by a bus operator (or an employee thereof, hereinafter referred to as a bus operator or the like). As a result, when the bus operator or the like moves the stop 2 temporarily or permanently, the bus operator or the like can accurately move the stop 2 to the planned point using the terminal device. . That is, since the stop 2 can provide a position measurement value independently, it can be used also for uses other than the stop map preparation system 100. FIG.

  The above is the description of the embodiment of the present invention. In addition, this invention is not limited to the said embodiment, The change of a structure as demonstrated below is possible.

  In the above description, the database server 3 reads the stop position information from the memory card 15 every day and reflects it on the stop map. According to this configuration, even when the stop suddenly moves due to road construction or the like, it is possible to quickly reflect the accurate position on the stop map. Here, in general, most of the stops installed on the existing system remain installed at substantially fixed positions without moving. Therefore, the reading of the position measurement value from the memory card 15 may be performed every predetermined period such as one month. The stop position information accumulated in the memory card for a predetermined period may be averaged for each ID. However, if the stop position information is read out every predetermined period and the averaging process is performed, if there is a stop movement within the predetermined period, the position before and after the movement is averaged, The exact location may not be displayed. In this regard, even if there is a movement of the stop within a predetermined period, the date of the movement of the stop can be known in advance at the establishment. In addition, by searching for the accumulated position measurement values before performing the averaging process, it can be seen that the position measurement values have changed greatly at a specific time point or for a specific period. Therefore, even in such a case, data correction can be easily performed based on the change in the date and position measurement value, and the accuracy of the stop map can be maintained high.

  Further, the stop 2 may be configured to always transmit a signal related to a position measurement value or specific information instead of transmitting a broadcast signal. In this case, it is desirable to perform encryption processing on signals related to each information so that position measurement values and specific information are not used illegally. Moreover, it is necessary to add a decryption function for decrypting the encrypted signal to the vehicle-mounted device 11 of the bus 1. As described above, the one-way communication between the bus 1 and the bus stop 2 is performed from the bus stop 2 to the bus 1, thereby reducing the possibility that the radio communication time between the bus 1 and the bus stop 2 is shortened and the communication fails. it can.

  In the above embodiment, the position measurement value stored in the memory card is read out and reflected in the stop map. Here, instead of using a storage means such as a memory card, a wireless communication network is laid between the bus 1 and the database server 3. And every time the onboard equipment produces | generates stop position information in the bus | bath 1, you may make it the structure which transmits this position measured value to the database server 3 by radio | wireless communication.

  Moreover, in the said embodiment, specific information was stored in the memory 23 of the stop 2, and it demonstrated that it was transmitted to the bus | bath 1 with a position measured value. However, the specific information does not necessarily have to be held by the bus stop 2 and may be configured as follows. For example, as described above, the vehicle-mounted device 11 performs broadcast processing. Among the text data used for performing the broadcast processing, specific information regarding each stop is associated with text data regarding stop guidance. And the onboard equipment 11 acquires the specific information linked | related with the data used when broadcasting which guides the next stop. Next, when the position measurement value is transmitted from the stop 2, the vehicle-mounted device 11 generates the stop position information by associating the specific information with the position measurement value.

  In the above description, the bus stop having the highest utility value is assumed as an index according to the present invention. In addition to the bus bus stop described above, for example, a delivery point in a route delivery company or a taxi trader. It can also be used as a taxi stand.

It is a figure showing the schematic structure of the stop map preparation system of embodiment of this invention. It is a figure showing the operation | movement sequence of the bus | bath and a stop in the stop map preparation system of this embodiment. A part of table of stop position information written in the memory card of this embodiment is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bus 2 Stop 3 Database server 11 Onboard equipment 15 Memory card 16 1st antenna 21 1st CPU
22 GPS
24 communication unit 25 second antenna 31 second CPU
100 stop map making system

Claims (12)

A plurality of stops having position detection means for detecting position measurement values related to the installation position of the stop by GPS, and at least first wireless communication means for transmitting the position measurement values,
A bus having a vehicle-mounted device capable of communicating with the first wireless communication means;
A database server having map information of an area including installation positions of the plurality of stops,
The in-vehicle device communicates with the first wireless communication means of the stop whenever the bus enters a wireless communicable range at each stop while operating on a predetermined route passing through the plurality of stops. Obtaining at least a position measurement value of the stop, and generating stop position information regarding the position of the stop based on the position measurement value;
The said database server displays the position of these stop on the said map based on the said stop position information which the said onboard equipment produced | generated, The stop map preparation system characterized by the above-mentioned. In the stop map preparation system according to claim 1,
The first radio communication means always transmits at least the position measurement value to a radio communicable range at all times. In the stop map production system according to claim 2,
The information transmitted to the wireless communicable range is encrypted,
The on-vehicle device includes an encryption / decryption unit for decrypting encrypted information. In the stop map preparation system according to claim 1,
The stop is provided with an authentication means for authenticating the bus when there is a connection request from a bus that has entered the wireless communication range
The first radio communication means transmits the position measurement value only to the bus authenticated by the authentication means. The bus further includes storage means for storing the generated stop position information.
The database server has information reading means for reading the stop position information from the storage means, and displays the position of the stop on the map based on the stop position information periodically read by the information reading means. The stop map production system according to any one of claims 1 to 4, characterized in that. The bus further includes second wireless communication means for transmitting the generated stop position information to the database server,
The said database server displays the position of the said stop on the said map based on the said stop position information transmitted via said 2nd wireless | radio communication means, Either of Claim 1 or Claim 4 characterized by the above-mentioned. Stop map production system described in Crab.   7. The stop map creation system according to claim 6, wherein the second wireless communication unit transmits the stop position information to the database server every time the vehicle-mounted device generates the stop position information. In the stop map production system according to any one of claims 1 to 7,
The plurality of stops have specific information for specifying each stop,
The first wireless communication means transmits the specific information at the same time when transmitting the position measurement value,
The on-vehicle device generates the stop position information by associating the position measurement value with the specific information, and the stop map generating system. In the stop map production system according to any one of claims 1 to 7,
The vehicle-mounted device generates specific information on a stop that has passed from pre-input data, and generates the stop location information by associating it with a position measurement value transmitted from the stop that has passed. Stop map making system. The on-vehicle device performs broadcast processing on at least one of the inside and outside of the vehicle,
The data includes broadcast data used for the broadcast processing,
10. The stop map creating system according to claim 9, wherein the specific information is an ID related to the stop associated with the broadcasting data used to guide the stop through which the bus passes. The database server, when there are a plurality of stop position information including the same specific information, averages the position measurement values included in each stop position information and converts them into a single position measurement value. stop cartographic system according to any one of claims 10 to claim 8. The database server any of claims 1 to 11, characterized in that displaying the position of the stop on the map using at least some of the stop position information generated in one buses Stop map production system described in 1.

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