JP2011112536A - Navigation system, navigation device, navigation server and method of learning pulse moving distance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation system that can shorten the time until the moving distance per pulse of speed pulse becomes close to that of actual current value, and to provide a navigation device, a navigation server and a method of learning pulse moving distance. <P>SOLUTION: A difference between the moving distance per pulse of speed pulse stored beforehand in a memory section and that per pulse calculated, according to the number of pulses in speed pulse detected between optional two places, and a distance therebetween is calculated and stored in the memory section; and the moving distance per pulse is corrected by statistical processings, on the basis of the difference stored in the memory section. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a navigation system, a navigation device, a navigation server, and a pulse travel distance learning method.

  2. Description of the Related Art Conventionally, correction techniques have been developed that approximate calculated values such as vehicle speed and travel distance based on vehicle speed pulses to actual values.

  For example, in Patent Document 1, a vehicle speed pulse is detected by a pulse detection sensor, a first distance from the vehicle to a stationary object is detected by a distance detection sensor, and a second distance from the vehicle after traveling in a certain section to the stationary object is described. Detecting a distance, calculating a first travel distance in the section based on the first and second distances, calculating a second travel distance based on a vehicle speed pulse detected in the section, A vehicle speed pulse correction system that calculates a correction value of a vehicle speed pulse based on a first travel distance and a second travel distance is disclosed.

JP 2004-317206 A

  However, the conventional correction technique related to the vehicle speed pulse has a problem that it takes time to bring the value close to the actual accurate value by the correction.

  For example, in the vehicle speed pulse correction system described in Patent Document 1, the correction value is calculated based on the initial value stored in advance and the travel distance detected by the distance detection sensor. Until there is a large error between the actual value or when there is an error between the detected mileage and the actual mileage, until a correction value for calculating the actual accurate value is obtained. Had the problem of taking time.

  The present invention has been made in view of the above problems, and can provide a navigation system, a navigation apparatus, and a navigation server that can shorten the time required for the moving distance per pulse of vehicle speed pulses to approach an actual accurate value. An object of the present invention is to provide a pulse moving distance learning method.

  In order to achieve such an object, a navigation system according to the present invention includes a navigation server including at least a control unit and a storage unit, and a navigation device including at least a vehicle speed pulse detection unit, a storage unit, and a control unit. A navigation system connected so as to be communicable, wherein the storage unit of the navigation server is associated with vehicle type information relating to the vehicle type of the vehicle, and pulse moving distance information relating to a moving distance per pulse of vehicle speed pulses in the vehicle of the vehicle type And the control unit of the navigation server is received by the vehicle type information receiving unit for receiving the vehicle type information transmitted from the navigation device and the vehicle type information receiving unit. The pulse travel distance information corresponding to the vehicle type information is Pulse movement distance information acquisition means for acquiring from the speed pulse movement distance storage means; and pulse movement distance information transmission means for transmitting the pulse movement distance information acquired by the vehicle speed pulse movement distance acquisition means to the navigation device. The control unit of the navigation device includes: vehicle type information transmitting means for transmitting the vehicle type information to the navigation server; pulse moving distance information receiving means for receiving the pulse moving distance information transmitted from the navigation server; Pulse movement for measuring the number of pulses of the vehicle speed pulse detected by the vehicle speed pulse detector between the two points and calculating the movement distance per pulse based on the distance between the two points and the pulse number The distance received by the distance calculating means and the pulse moving distance receiving means. Difference storage means for calculating the difference between the movement distance per pulse of the movement distance information and the movement distance per pulse calculated by the pulse movement distance calculation means and storing the difference in the storage unit; And pulse movement distance information correction means for correcting the pulse movement distance information by learning through statistical processing based on the difference stored in the storage unit by the difference storage means.

  In the navigation system according to the present invention, in the navigation system described above, the control unit of the navigation device may receive corrected pulse moving distance information that is the pulse moving distance information corrected by the pulse moving distance information correcting unit. The correction pulse movement distance information transmission means for transmitting to the navigation server in association with the vehicle type information, and the control unit of the navigation server include the correction pulse movement associated with the vehicle type information transmitted from the navigation device. The correction pulse movement distance information receiving means for receiving distance information and the correction pulse movement distance information received by the correction pulse movement distance information receiving means are stored in the pulse movement distance storage means in association with the vehicle type information. Correction pulse movement distance information storage means, It is characterized in.

  In the navigation system according to the present invention, in the navigation system described above, the control unit of the navigation device further includes route guidance means for performing route guidance on a guidance route, and the pulse moving distance calculation means includes Two points on the guidance route by the route guidance means are set as arbitrary two points, and the movement distance per pulse is calculated based on the distance between the two points and the number of pulses. .

  The navigation device of the present invention is a navigation device including at least a vehicle speed pulse detection unit, a storage unit, and a control unit, which is communicably connected to a navigation server including at least a storage unit. The storage unit includes pulse movement distance information storage means for storing pulse movement distance information about a movement distance per pulse of a vehicle speed pulse in a vehicle of the vehicle type in association with vehicle type information about the vehicle type of the vehicle. A vehicle type information transmitting unit configured to transmit the vehicle type information to the navigation server; a pulse moving distance information receiving unit configured to receive the pulse moving distance information corresponding to the vehicle type information transmitted from the navigation server; The vehicle speed detected by the vehicle speed pulse detector between the two points A pulse movement distance calculation means for measuring the number of pulses of the pulse and calculating a movement distance per pulse based on the distance between the two points and the number of pulses, and the pulse movement distance reception means received by the pulse movement distance reception means Difference storage means for calculating a difference between the movement distance per pulse of the pulse movement distance information and the movement distance per pulse calculated by the pulse movement distance calculation means and storing the difference in the storage unit; And pulse movement distance information correction means for correcting the pulse movement distance information by learning through statistical processing based on the difference stored in the storage unit by the difference storage means.

  The navigation server of the present invention is a navigation server that includes at least a control unit and a storage unit that are communicably connected to a navigation device that includes at least a vehicle speed pulse detection unit. Pulse movement distance information storage means for storing pulse movement distance information related to the movement distance per pulse of the vehicle speed pulse in a vehicle of the vehicle type in association with the vehicle type information related to the vehicle type, and the control unit includes: Vehicle type information receiving means for receiving the transmitted vehicle type information, and pulse moving distance information for acquiring the pulse moving distance information corresponding to the vehicle type information received by the vehicle type information receiving means from the vehicle speed pulse moving distance storage means Acquisition means and the pulse shift acquired by the vehicle speed pulse movement distance acquisition means. By transmitting the distance information to the navigation device, the movement distance per pulse based on the pulse movement distance information, the number of pulses of the vehicle speed pulse detected by the vehicle speed pulse detection unit between any two points, and the A pulse movement distance information transmission unit that calculates a difference between the movement distance per pulse calculated based on the distance between the two points and corrects the movement distance per pulse by learning through statistical processing; It is characterized by that.

  The navigation server of the present invention is a navigation server that includes at least a control unit and a storage unit that are communicably connected to a navigation device that includes at least a vehicle speed pulse detection unit. In association with the vehicle type information related to the vehicle type, pulse movement distance information storage means for storing pulse movement distance information related to the movement distance per pulse of the vehicle speed pulse in the vehicle of the vehicle type, the control unit of the navigation server, Vehicle type information receiving means for receiving the vehicle type information transmitted from the navigation device, and the pulse moving distance information corresponding to the vehicle type information received by the vehicle type information receiving means are acquired from the vehicle speed pulse moving distance storage means. The vehicle speed performance is measured between the pulse travel distance information acquisition means and any two points. Based on the vehicle speed pulse receiving means for receiving the vehicle speed pulse detected from the navigation detector from the navigation device, the number of pulses of the vehicle speed pulse received by the vehicle speed pulse receiving means, and the distance between the two points. , A pulse movement distance calculation means for calculating the movement distance per pulse, a movement distance per pulse of the pulse movement distance information acquired by the pulse movement distance reception means, and a calculation by the pulse movement distance calculation means. Learning by statistical processing based on the difference stored in the storage unit by the difference storage unit and calculating the difference between the travel distance per pulse and the stored difference in the storage unit To the pulse movement distance information correction means for correcting the pulse movement distance information and the pulse movement distance information correction means. A pulse moving distance information setting means for setting the moving distance per one pulse of the vehicle speed pulse detected by the vehicle speed pulse detecting unit by transmitting the corrected pulse moving distance information to the navigation device; It is provided with.

  Further, the pulse moving distance learning method of the present invention connects a navigation server including at least a control unit and a storage unit, and a navigation device including at least a vehicle speed pulse detection unit, a storage unit, and a control unit so as to communicate with each other. In the pulse movement distance learning method executed in the navigation system, the storage unit of the navigation server is associated with vehicle type information related to the vehicle type of the vehicle, and the movement distance per pulse of the vehicle speed pulse in the vehicle of the vehicle type A vehicle type information transmitting step for transmitting the vehicle type information to the navigation server, which is executed in the control unit of the navigation device; The above-mentioned controller is executed in the controller. The vehicle type information receiving step for receiving the vehicle type information transmitted from the gating device, and the pulse movement distance corresponding to the vehicle type information received in the vehicle type information receiving step, which is executed in the control unit of the navigation server. The pulse movement distance information acquisition step of acquiring information from the vehicle speed pulse movement distance storage means, and the pulse movement distance information acquired in the vehicle speed pulse movement distance acquisition step executed in the control unit of the navigation server. A pulse moving distance information transmitting step for transmitting to the navigation device; a pulse moving distance information receiving step for receiving the pulse moving distance information transmitted from the navigation server, executed in the control unit of the navigation device; Navigation device The number of pulses of the vehicle speed pulse detected by the vehicle speed pulse detection unit between two arbitrary points executed in the control unit is measured, and the one pulse is calculated based on the distance between the two points and the number of pulses. A moving distance per pulse of the pulse moving distance information received in the pulse moving distance receiving step, which is executed in the control unit of the navigation device, and a pulse moving distance calculating step for calculating a per-pulse moving distance And a difference storing step of calculating a difference between the moving distance per pulse calculated in the pulse moving distance calculating step and storing the difference in the storage unit, and the control unit of the navigation device. Based on the difference stored in the storage unit in the difference storage step, And a pulse movement distance information correction step for correcting the pulse movement distance information.

  In addition, the pulse moving distance learning method of the present invention is a pulse executed in a navigation device including at least a vehicle speed pulse detection unit, a storage unit, and a control unit, which is communicably connected to a navigation server including at least a storage unit. In the moving distance learning method, the storage unit of the navigation server stores pulse moving distance information regarding a moving distance per pulse of vehicle speed pulses in a vehicle of the vehicle type in association with vehicle type information regarding the vehicle type of the vehicle. A vehicle type information transmitting step for transmitting the vehicle type information to the navigation server, which is executed in the control unit, and the pulse corresponding to the vehicle type information transmitted from the navigation server. A pulse moving distance information receiving step for receiving moving distance information; A pulse for measuring the number of pulses of the vehicle speed pulse detected by the vehicle speed pulse detection unit between any two points and calculating the movement distance per pulse based on the distance between the two points and the number of pulses. The moving distance calculation step, the moving distance per pulse of the pulse moving distance information received in the pulse moving distance receiving step, and the moving distance per pulse calculated in the pulse moving distance calculating step The difference storage step of calculating and storing the difference in the storage unit, and correcting the pulse movement distance information by learning by statistical processing based on the difference stored in the storage unit in the difference storage step And a pulse movement distance information correction step.

  Further, the pulse moving distance learning method of the present invention is a pulse moving distance learning executed in a navigation server having at least a control unit and a storage unit, which is communicably connected to a navigation device having at least a vehicle speed pulse detecting unit. A method, wherein the storage unit stores pulse movement distance information storage means for storing pulse movement distance information about a movement distance per pulse of a vehicle speed pulse in a vehicle of the vehicle type in association with vehicle type information about the vehicle type of the vehicle, Vehicle type information receiving step for receiving the vehicle type information transmitted from the navigation device, executed in the control unit, and the pulse travel distance corresponding to the vehicle type information received in the vehicle type information receiving step Pulse travel distance information acquisition step for acquiring information from the vehicle speed pulse travel distance storage means. And the pulse moving distance information acquired in the vehicle speed pulse moving distance acquisition step to the navigation device, the moving distance per pulse based on the pulse moving distance information, and two arbitrary points. The difference between the number of pulses of the vehicle speed pulse detected by the vehicle speed pulse detection unit and the movement distance per pulse calculated based on the distance between the two points is calculated by learning through statistical processing. And a pulse movement distance information transmitting step for correcting the movement distance per pulse.

  Further, the pulse moving distance learning method of the present invention is a pulse moving distance learning executed in a navigation server having at least a control unit and a storage unit, which is communicably connected to a navigation device having at least a vehicle speed pulse detecting unit. A method, wherein the storage unit stores pulse movement distance information storage means for storing pulse movement distance information about a movement distance per pulse of a vehicle speed pulse in a vehicle of the vehicle type in association with vehicle type information about the vehicle type of the vehicle, Vehicle type information receiving step for receiving the vehicle type information transmitted from the navigation device, executed in the control unit of the navigation server, and corresponding to the vehicle type information received in the vehicle type information receiving step The pulse travel distance information is acquired from the vehicle speed pulse travel distance storage means. A pulse movement distance information acquisition step, a vehicle speed pulse reception step for receiving the vehicle speed pulse detected by the vehicle speed pulse detection unit between any two points from the navigation device, and the vehicle speed pulse reception step. Based on the number of vehicle speed pulses and the distance between the two points, the pulse movement distance calculation step for calculating the movement distance per pulse and the pulse movement distance acquired in the pulse movement distance reception step A difference storing step of calculating a difference between the moving distance per pulse of information and the moving distance per pulse calculated in the pulse moving distance calculating step and storing the difference in the storage unit; and the difference storing Based on the difference stored in the storage unit in the step, the parameter is learned by statistical processing. A pulse moving distance information correcting step for correcting the moving distance information, and the pulse moving distance information corrected in the pulse moving distance information correcting step is transmitted to the navigation device to be detected by the vehicle speed pulse detecting unit. And a pulse moving distance information setting step for setting a moving distance per one pulse of the vehicle speed pulse.

  According to this invention, the navigation server stores the pulse movement distance information related to the movement distance per pulse of the vehicle speed pulse in the vehicle of the vehicle type in association with the vehicle type information related to the vehicle type of the vehicle in the storage unit. The vehicle type information transmitted from the navigation device is received, the pulse movement distance information corresponding to the received vehicle type information is acquired from the storage unit, and the acquired pulse movement distance information is transmitted to the navigation device. Is transmitted to the navigation server, the pulse movement distance information transmitted from the navigation server is received, the number of pulses of the vehicle speed pulse detected by the vehicle speed pulse detector between any two points is measured, and the distance between the two points Calculate the travel distance per pulse based on the number of pulses and The difference between the movement distance per pulse of the calculated pulse movement distance information and the calculated movement distance per pulse is calculated and stored in the storage unit, and learning by statistical processing is performed based on the difference stored in the storage unit Thus, the pulse moving distance information can be corrected. Accordingly, the present invention shortens the time until the moving distance per pulse of the vehicle speed pulse approaches the actual accurate value with the moving distance per pulse of the vehicle speed pulse transmitted from the server as a reference value. There is an effect that can be.

  Further, according to the present invention, the navigation device further transmits corrected pulse moving distance information, which is corrected pulse moving distance information, to the navigation server in association with the vehicle type information, and the navigation server is transmitted from the navigation device. The correction pulse movement distance information associated with the vehicle type information can be received, and the received correction pulse movement distance information can be stored in the storage unit in association with the vehicle type information. Thereby, the present invention has an effect that the learning result on the terminal (navigation device) side is reflected on the server side, and the movement distance per one pulse more accurately as the reference value can be stored in the server.

  Further, according to the present invention, the navigation device performs route guidance on the guidance route, sets two points on the guidance route as arbitrary two points, and based on the distance between the two points and the number of pulses, The movement distance per pulse can be calculated. As a result, the present invention sets two points in advance on the guide route that the vehicle is scheduled to pass through, measures the distance between the two points and the number of pulses more accurately, and moves the vehicle speed pulse per pulse. It is possible to bring the value closer to the actual accurate value.

  In the above description, the navigation system of the present invention has been described as an example. However, the navigation apparatus, the navigation server, and the pulse movement distance learning method also have the same effect.

FIG. 1 is a block diagram illustrating an example of a configuration of a navigation system according to the first embodiment. FIG. 2 is a flowchart illustrating an example of processing of the navigation system according to the first embodiment. FIG. 3 is a block diagram illustrating an example of a configuration of the navigation server 200 according to the second embodiment. FIG. 4 is a flowchart illustrating an example of processing of the navigation server in the second embodiment. FIG. 5 is a flowchart showing an example of calculation of the movement distance per pulse in the present embodiment.

  Embodiments of a navigation system, a navigation device, a navigation server, a pulse movement distance learning method, and a program according to the present invention will be described below with reference to the drawings. Note that the present invention is not limited to the embodiments.

  Hereinafter, the configuration and processing of the present invention will be described in detail in the order of the first embodiment (navigation system) and the second embodiment (navigation server (server-driven type)).

[First Embodiment]
First, a first embodiment (navigation system) of the present invention will be described below with reference to FIG. 1 and FIG.

[Navigation system configuration]
First, an example of the configuration of the navigation system in the first embodiment will be described below with reference to FIG. Here, FIG. 1 is a block diagram showing an example of the configuration of the navigation system in the first embodiment, and conceptually shows only the portion related to the present invention in the configuration.

  As shown in FIG. 1, the navigation system according to the first embodiment of the present invention is schematically configured by connecting a navigation server 200 and a navigation device 100 so that they can communicate with each other. As an example, the communication includes remote communication such as wired / wireless communication via the network 300. Each part of these navigation systems is communicably connected via an arbitrary communication path.

[Configuration of Navigation Server 200]
Here, in FIG. 1, the navigation server 200 receives the vehicle type information transmitted from the navigation device 100, acquires pulse movement distance information corresponding to the received vehicle type information from the storage unit 106, and acquires the acquired pulse movement distance information. To the navigation device 100. The navigation server 200 is connected to the navigation apparatus 100 through the communication control interface unit 204 via the network 300 so as to be communicable with each other, and includes a control unit 202 and a storage unit 206. The control unit 202 is a control unit that performs various processes, and performs acquisition of pulse movement distance information corresponding to vehicle type information. The communication control interface unit 204 is an interface connected to a communication device (not shown) such as an antenna or a router connected to a communication line, a telephone line, etc., and performs communication control between the navigation server 200 and the network 300. Has the function to perform. That is, the communication control interface unit 204 has a function of communicating data with the navigation device 100 or the like via a communication line. The storage unit 206 is a storage unit such as a fixed disk device, and stores various databases and tables (such as a pulse movement distance database 206a).

  Among these components of the storage unit 206, the pulse movement distance database 206a stores pulse movement distance information related to the movement distance per pulse of the vehicle speed pulse in the vehicle of the vehicle type in association with the vehicle type information related to the vehicle type of the vehicle. Pulse moving distance information storage means. Here, the “vehicle type information” is information for specifying the vehicle type of the vehicle. For example, the vehicle type name (for example, the vehicle name (product name) or the vehicle type (sedan, wagon, sports car, etc.) ) Etc., information such as manufacturer name, model number, grade, displacement, engine model, year, etc. may be included.

  The control unit 202 has an internal memory for storing a control program such as an OS (Operating System), a program that defines various processing procedures, and necessary data. And the control part 202 performs the information processing for performing various processes with these programs. The control unit 202 is functionally conceptually configured to include a vehicle type information reception unit 202a, a pulse movement distance information acquisition unit 202b, a pulse movement distance information transmission unit 202c, a correction pulse movement distance information reception unit 202d, and a correction pulse movement distance information storage unit. 202e is comprised.

  Among these, the vehicle type information receiving unit 202 a is vehicle type information receiving means for receiving vehicle type information transmitted from the navigation device 100.

  The pulse movement distance information acquisition unit 202b is a pulse movement distance information acquisition unit that acquires pulse movement distance information corresponding to the vehicle type information received by the vehicle type information reception unit 202a from the pulse movement distance database 206a.

  The pulse travel distance information transmission unit 202c is a pulse travel distance information transmission unit that transmits the pulse travel distance information acquired by the pulse travel distance information acquisition unit 202b to the navigation device 100.

  The correction pulse movement distance information receiving unit 202d is correction pulse movement distance information receiving means for receiving correction pulse movement distance information associated with the vehicle type information transmitted from the navigation device 100.

  Further, the correction pulse movement distance information storage unit 202e stores the correction pulse movement distance information stored in the pulse movement distance database 206a in association with the vehicle type information and the correction pulse movement distance information received by the correction pulse movement distance information reception unit 202d. Means. Here, the correction pulse movement distance information storage unit 202e is based on the correction pulse movement distance information received by the correction pulse movement distance information reception unit 202d, and is stored in the pulse movement distance database 206a corresponding to the vehicle type information. The travel distance information may be updated. The corrected pulse moving distance information storage unit 202e performs statistical processing based on a plurality of corrected pulse moving distance information associated with the same vehicle type information transmitted from the plurality of navigation devices 100, and displays the statistical processing result. Based on this, the corresponding pulse movement distance information stored in the pulse movement distance database 206a may be corrected.

[Configuration of Navigation Device 100]
In FIG. 1, the navigation device 100 transmits vehicle type information to the navigation server 200, receives pulse movement distance information transmitted from the navigation server 200, and is detected by the vehicle speed pulse detection unit 114 between any two points. The number of vehicle speed pulses is measured, the travel distance per pulse is calculated based on the distance between the two points and the number of pulses, and the travel distance per pulse of the received pulse travel distance information is calculated. A function of calculating a difference between the movement distance per pulse and storing the difference in the storage unit 106 and correcting the pulse movement distance information by learning based on statistical processing based on the difference stored in the storage unit 106 is provided. The navigation device 100 according to the first embodiment includes a vehicle speed pulse detection unit 114, an output unit 118, an input unit 116, a storage unit 106, and a control unit 102. Here, the navigation apparatus 100 may include a position acquisition unit 112 having a GPS function, an IMES function, or the like so that current position information can be acquired in real time.

  The navigation device 100 is, for example, a commercially available information processing device such as a desktop or notebook personal computer, a portable navigation device 100 such as a mobile phone, PHS, or PDA. In the first embodiment, the navigation device 100 may be an in-vehicle information processing terminal that performs car navigation. Here, the navigation apparatus 100 can communicate with, for example, an ECU (Electronic Control Unit) or an Engine Control Unit (ECU) mounted on the vehicle, and can acquire vehicle speed pulses, vehicle type information, and the like from the ECU. It can be supplied with electric power, has a built-in communication module, can communicate with the navigation server 200 and the like via the network 300 within the communication area, and can download and update data such as map data from the navigation server 200. It may be a possible device.

  Here, the position acquisition unit 112 may be, for example, a position acquisition unit that receives a position information signal transmitted from the position transmission device 500. Here, the position transmitting device 500 may be a GPS device that transmits a position information signal (GPS signal) relating to orbit data and time information, and is also used indoors by using a position information signal having characteristics similar to those of the GPS signal. An IMES device that realizes IMES (Indoor Message System) technology that enables positioning may be used. The IMES technology is a system developed from the framework of the quasi-zenith satellite, which is a positioning satellite system. Further, the position transmission device 500 may be a GPS repeater that transmits a GPS signal received outdoors indoors. Further, the position transmission device 500 may be a small transmission device that is arbitrarily installed on each floor of a building (for example, a multilevel parking lot) or an underground structure (for example, a tunnel, an underground parking lot). Good. In addition, self-position information (position ID etc.) according to an installation place is allocated to this small transmitter. When the navigation device 100 enters the communicable range, the navigation device 100 receives the self-position information transmitted from the small transmitter as a position information signal. The communication method at this time may be, for example, various short-range wireless methods such as an RFID (Radio Frequency Identification) tag system and Bluetooth (registered trademark), an infrared communication method, and the like. Further, the position transmission device 500 may be a wireless LAN access point. In the first embodiment, the control unit 102 may calculate position information including latitude, longitude, and height information from the position information signal acquired by the position acquisition unit 112. Further, the position acquisition unit 112 may acquire access point identification information by receiving a wireless LAN signal or the like. In the first embodiment, the control unit 102 may acquire the position information by specifying the position of the access point from the identification information unique to the access point acquired by the position acquisition unit 112.

  Further, the position acquisition unit 112 includes, for example, direction information such as a traveling direction of the navigation device 100 detected by the direction sensor, movement distance information proportional to the number of vehicle speed pulses detected by the vehicle speed pulse detection unit 114, and Position information indicating the current position of the user of the navigation device 100 may be acquired based on the map data. Here, a geomagnetic sensor that detects the absolute traveling direction of the navigation device 100 and an optical gyro that detects the relative traveling direction of the navigation device 100 may be used as the direction sensor. In addition, the direction sensor may be an electronic compass that can acquire information on the direction and inclination by combining a geomagnetic sensor and an acceleration sensor. Moreover, the position acquisition part 112 may acquire the positional information which shows the own vehicle position from the vehicle-to-vehicle communication of the communication apparatus mounted in each vehicle.

  The vehicle speed pulse detector 114 is a vehicle speed pulse detector that detects vehicle speed pulses generated in proportion to the rotational speed of the axle. For example, when the part of the vehicle interlocked with the rotation of the axle is magnetized, the vehicle speed pulse detection unit 114 detects the vehicle speed pulse by reading the magnetic fluctuation. The vehicle speed pulse signal may be transmitted to the ECU in the vehicle. In this case, the vehicle speed pulse detection unit 114 may read the vehicle speed pulse from the ECU, and the vehicle speed pulse detection unit 114 may be a part of the ECU. You may comprise as a part.

  The communication control interface unit 104 is an interface connected to a communication device (not shown) such as an antenna or a router connected to a communication line, a telephone line, etc., and communicates between the navigation device 100 and the network 300. It has a function to perform control. That is, the communication control interface unit 104 has a function of communicating data with the navigation server 200 or the like via a communication line. The network 300 has a function of connecting the navigation device 100 and an external device such as the navigation server 200 to each other. Power line communication (PLC) or the like may be used.

  The output unit 118 is output means for outputting map data, guide route data, and the like. Here, the output unit 118 may be display means for displaying a display screen for displaying map data, guide route data, and the like (for example, a display or a monitor composed of a liquid crystal, an organic EL, or the like). Also, voice output means (for example, a speaker or the like) that outputs voice guidance data or the like related to the guidance route as voice may be used. The input unit 116 may be input means (for example, a key input unit, a touch panel, a keyboard, a microphone, etc.) for inputting a departure point, a current position, a destination, and the like. The input / output control interface unit 108 controls the position acquisition unit 112, the vehicle speed pulse detection unit 114, the output unit 118, the input unit 116, and the like.

  The storage unit 106 is a storage unit such as a fixed disk device, and may store various files (such as a pulse moving distance file 106a to a statistical data file 106c).

  Among these, the pulse movement distance file 106a is pulse movement distance information storage means for storing pulse movement distance information related to the movement distance per pulse of the vehicle speed pulse. In this pulse movement distance file 106a, pulse movement distance information received by the pulse movement distance information receiving unit 102b is stored as initial data. The initial data of the pulse movement distance information stored in the pulse movement distance file 106a is corrected by the pulse movement distance information correction unit 102f and updated as corrected pulse movement distance information. The pulse movement distance information (corrected pulse movement distance information) stored in the pulse movement distance file 106a is obtained when the current position information is acquired by the current position information acquisition unit 102c, or when the route guidance unit 102h performs route guidance. This is used when, for example, obtaining the vehicle speed, the moving distance, etc. of the vehicle based on the vehicle speed pulse detected by the vehicle speed pulse detection unit 114.

  The map database 106b is map data storage means for storing map data. As an example, the map data stored in the map database 106b mainly includes 1) map drawing data, 2) network data, and 3) spot data, and is used for purposes such as route search and map display. Used for.

  1) Map drawing data is data for drawing a map, for example, drawing data for drawing a landform such as a building, a road, or a mountain / river. For example, the drawing data may be data representing one area, site, area, or the like on a map with polygonal polygons, or data for two-dimensional display or three-dimensional display. Further, the drawing data may be outdoor map data such as road maps of the whole country and each region, and indoor map data such as a floor guide map relating to a building having height information (for example, a multilevel parking lot). There may be.

  2) Network data is network data that defines a traffic network. As an example, the network data is data related to roads, paths, and the like that are configured by nodes and links. For example, it is configured by a combination of node data relating to nodes that are nodes on road network representations such as intersections and link data relating to links that are road sections between nodes. More specifically, the node data may include a node number, position coordinates such as latitude and longitude, a node type, the number of links to be connected, a connection node number, an intersection name, and the like. The link data includes the link number, the type of road to be connected (whether it is a highway or a general road, etc.), the route number of national roads, prefectural roads, city roads, etc. Link length (ie travel distance of the road section), road service status, abnormal weather traffic restriction section, vehicle weight restriction, vehicle height restriction, width, road width classification, number of lanes, speed limit, etc. It may be configured to include in-link attributes such as tunnels and bridges, names, and the like.

  3) Spot data is data in which information is associated with a certain point. For example, in association with latitude / longitude, facility information such as stores, notes (character information such as place names), icons (facility and Information such as data for displaying advertisements or the like as icons) and symbols (such as map symbols) are stored.

  These various types of map data are stored in advance in the map database 106b, and the control unit 102 of the navigation apparatus 100 periodically downloads the latest map data from an external device such as the navigation server 200 via the network 300. Various map data stored in the map database 106b may be updated. That is, the map data may be stored in the storage unit 206 of the navigation server 200, and the navigation device 100 downloads the map data from the navigation server 200 and stores it in the map data file 106b by the process of the control unit 202. It may be stored. Moreover, these various map data may be comprised by the mesh unit (For example, the 1st-3rd area division mesh data of JIS specification, 100m mesh data etc.) divided by the longitude and the latitude.

  The statistical data file 106c is statistical data storage means for storing, as statistical data, the difference in movement distance per pulse calculated by the difference storage unit 102e. That is, the statistical data file 106c is received by the pulse moving distance information receiving unit 102b and calculated by the pulse moving distance calculating unit 102d and the moving distance per pulse of the pulse moving distance information stored in the pulse moving distance file 106a. The difference between the travel distance per pulse and the calculated distance is accumulated as statistical data.

  In addition, the storage unit 106 may store guidance data (such as voice guidance data and display guidance data) output to the output unit 118 on the guidance route, vehicle type information, and the like. For example, “Turn left at the next intersection” associated with the direction of travel at voice guidance data, branch points on the guidance route, etc., or “Soon to be selected” when the current location approaches the selected facility. This is data for voice guidance such as “It is a facility” and is used when the control unit 102 of the navigation apparatus 100 executes voice guidance. The display guidance data is data for display guidance such as turn-by-turn (TBT) associated with the traveling direction at a branch point on the guidance route, guidance indicating that the current position is close to the selected facility, and the like. This is used when the control unit 102 of the navigation device 100 executes display guidance. Here, the TBT is an arrow navigation that displays guidance such as a right or left turn on the screen.

  The control unit 102 includes an internal memory for storing a control program such as an OS, a program defining various processing procedures, and necessary data. And the control part 102 performs the information processing for performing various processes by these programs. The control unit 102 functionally conceptually includes a vehicle type information transmission unit 102a, a pulse movement distance information reception unit 102b, a current position information acquisition unit 102c, a pulse movement distance calculation unit 102d, a difference storage unit 102e, and a pulse movement distance information correction unit 102f. The correction pulse moving distance information transmitting unit 102g and the route guiding unit 102h are configured. Here, the control unit 102 may search for a guide route using network data or the like stored in the map database 106b. In addition, the navigation server 200 stores the network data in the storage unit 206, the control unit 102 of the navigation device 100 transmits a route search condition to the navigation server, and the control unit 202 of the navigation server 200 The navigation unit 100 searches for a guide route that satisfies the route search condition using the network data stored in the storage unit 206, and the control unit 102 of the navigation device 100 acquires the guide route by receiving the search result of the guide route. Also good.

  In FIG. 1, a vehicle type information transmission unit 102 a is vehicle type information transmission means for transmitting vehicle type information to the navigation server 200. Here, the vehicle type information transmitted by the vehicle type information transmission unit 102a may be vehicle type information stored in advance in the storage unit 106, or may be vehicle type information acquired from the ECU of the vehicle, and is input by the user. The vehicle type information input via the unit 116 may be used.

  The pulse travel distance information receiving unit 102b is a pulse travel distance information receiving unit that receives the pulse travel distance information transmitted from the navigation server 200 and stores it in the pulse travel distance file 106a.

  The current position information acquisition unit 102c is a current position information acquisition unit that acquires current position information regarding the current position of the user of the navigation device 100. Here, the current position information acquisition unit 102c may acquire the current position information of the user of the navigation device 100 every predetermined cycle (for example, every second). In addition to the position information calculated from the position information signal received from the position transmission device 500 by the position acquisition unit 112, the current position information acquisition unit 102c, the traveling direction of the vehicle detected by the direction sensor of the position acquisition unit 112, and the like. The current position information may be acquired in consideration of the azimuth information, the travel distance information based on the number of pulses detected by the vehicle speed pulse detection unit 114, the vehicle speed information, and the like. For example, the travel distance information may be calculated by multiplying the number of pulses detected by the vehicle speed pulse detection unit 114 by the travel distance per pulse specified by the pulse travel distance information stored in the pulse travel distance file 106a. The vehicle speed information may be calculated by multiplying the number of pulses per unit time detected by the vehicle speed pulse detection unit 114 by the movement distance per pulse specified by the pulse movement distance information. Further, the current position information acquisition unit 102c may acquire the position coordinates and the like regarding the current position input by the user via the input unit 116 as the current position information of the user of the navigation device 100. Here, the current position input by the user via the input unit 116 may be a position where the user actually exists, and a virtual current position arbitrarily selected by the user (for example, Tokyo It may be an arbitrary point such as a station or an airport in Osaka selected by a user in the area. Specifically, the current position information acquisition unit 102c is designated on the display screen that displays the map data displayed on the output unit 118 to the user via the input unit 116 (for example, in the touch panel type output unit 118). Coordinates and / or orientation information that has been designated and the like may be acquired as current position information of the user of the navigation device 100. The current position information acquisition unit 102c may acquire the position information of the vehicle as the current position information of the user of the navigation device 100.

  Further, the pulse movement distance calculation unit 102d measures the number of vehicle speed pulses detected by the vehicle speed pulse detection unit 114 between any two points, and based on the distance between the two points and the number of pulses, Is a pulse movement distance calculation means for calculating the movement distance. For example, the pulse movement distance calculation unit 102d calculates the movement distance per pulse by dividing the distance between the two points by the number of vehicle speed pulses detected between the two points. Here, the pulse movement distance calculation unit 102d sets two arbitrary points based on the network data stored in the map database 106b, and updates the current position information acquired by the current position information acquisition unit 102c, thereby setting the setting. The start point and end point of the two points are determined, the number of pulses detected by the vehicle speed pulse detection unit 114 from the start point to the end point, and the link length (travel distance of the road section) stored in the link data of the network data Based on the above, the movement distance per pulse may be calculated. In addition, the pulse movement distance calculation unit 102d may set two nodes (for example, two branch points) of the network data as two arbitrary points, and two points on the guide route by the route guide unit 102h may be set. It may be set. For example, between two arbitrary points may be a section between expressway interchanges or a section specified by a link in network data. Here, the road link may be a road section between nodes having a predetermined length (for example, 100 m or more), and is a composite link in which a plurality of links are connected to form a predetermined length. Also good. Note that the distance between the two points is not limited to acquiring from the known distance data stored in the network data or the like, and the pulse moving distance calculating unit 102d is acquired by the current position information acquiring unit 102c between the two points. The distance between the two points may be calculated based on the current position information. For example, the pulse movement distance calculation unit 102d obtains the distance between two points by calculating a straight line distance between two points calculated as current position information from a GPS signal or the like, or calculating a curved distance of many points. May be.

  The difference storage unit 102e is calculated by the pulse movement distance calculation unit 102d and the movement distance per pulse of the pulse movement distance information received by the pulse movement distance information reception unit 102b and stored in the pulse movement distance file 106a. It is a difference storage means for calculating the difference between the movement distance per pulse and storing it in the statistical data file 106c. That is, the difference storage unit 102e uses the movement distance per pulse of the pulse movement distance information stored in the pulse movement distance file 106a as a reference value for the movement distance per pulse calculated by the pulse movement distance calculation unit 102d. The difference from the measured value is calculated and accumulated as statistical data in the statistical data file 106c.

  Further, the pulse movement distance information correction unit 102f corrects the pulse movement distance information by learning through statistical processing based on the statistical data of the difference stored in the statistical data file 106c by the difference storage unit 102e, thereby correcting the pulse movement distance file 106a. It is a pulse movement distance information correction | amendment means stored in this. For example, the pulse movement distance information correction unit 102f corrects the movement distance per pulse by learning an appropriate movement distance per pulse by statistical processing based on the statistical data of the difference accumulated in the statistical data file 106c. The value is acquired and the pulse movement distance information stored in the pulse movement distance file 106a is updated. In this way, the pulse movement distance information correction unit 102f brings the movement distance per pulse closer to the actual accurate value by reflecting the learning result in the pulse movement distance information of the pulse movement distance file 106a. .

  The corrected pulse moving distance information transmitting unit 102g associates the corrected pulse moving distance information, which is the pulse moving distance information corrected by the pulse moving distance information correcting unit 102f and stored in the pulse moving distance file 106a, with the vehicle type information. It is a correction pulse moving distance information transmitting means for transmitting to the navigation server 200. Here, the corrected pulse moving distance information transmitting unit 102g receives the initial data of the pulse moving distance information received by the pulse moving distance information receiving unit 102b and stored in the pulse moving distance file 106a by the pulse moving distance information correcting unit 102f. The updated corrected pulse moving distance information stored in the pulse moving distance file 106a may be transmitted to the navigation server 200 when the number of times updated has been counted.

  The route guidance unit 102h is route guidance means for performing route guidance on the guidance route. For example, the route guidance unit 102h is configured to generate voice guidance data based on the guidance route data generated by the control unit 202 using network data stored in the map database 106b, the guidance route data received from the navigation server 200, and the like. Route guidance is performed by outputting display guidance data and the like to the output unit 118. Here, the route guidance unit 102h may sequentially output voice guidance data, display guidance data, and the like to the output unit 118 according to the update of the current location information acquired by the current location information acquisition unit 102c. When the current position based on the current position information approaches a branch point or the like on the guidance route, the output unit 118 may output voice guidance data, display guidance data, or the like for direction indication. In addition, the route guidance unit 102h superimposes and outputs a guidance route, a current position pointer based on current position information acquired by the current position information acquisition unit 102c, and the like on a display screen based on map drawing data stored in the map database 106b. You may display on the part 118. FIG.

  Above, description of an example of a structure of the navigation system in 1st Embodiment is finished.

[Navigation system processing]
Next, an example of the processing of the navigation system according to the first embodiment configured as described above will be described in detail with reference to FIG. FIG. 2 is a flowchart illustrating an example of processing of the navigation system according to the first embodiment.

  As shown in FIG. 2, first, the vehicle type information transmission unit 102a of the navigation device 100 transmits the vehicle type information to the navigation server 200 (step SA-1). Here, the vehicle type information transmitted by the vehicle type information transmission unit 102a may be vehicle type information stored in advance in the storage unit 106, or may be vehicle type information acquired from the ECU of the vehicle, and is input by the user. The vehicle type information input via the unit 116 may be used.

  Then, the vehicle type information receiving unit 202a of the navigation server 200 receives the vehicle type information transmitted from the navigation device 100 (step SA-2).

  Then, the pulse movement distance information acquisition unit 202b of the navigation server 200 acquires the pulse movement distance information corresponding to the vehicle type information received by the vehicle type information reception unit 202a from the pulse movement distance database 206a (step SA-3). That is, the pulse travel distance information acquisition unit 202b acquires, from the pulse travel distance database 206a, pulse travel distance information that defines the travel distance per pulse of the vehicle speed pulse corresponding to the vehicle type of the vehicle targeted by the navigation device 100. .

  Then, the pulse movement distance information transmission unit 202c of the navigation server 200 transmits the pulse movement distance information acquired by the pulse movement distance information acquisition unit 202b to the navigation device 100 (step SA-4).

  Then, the pulse moving distance information receiving unit 102b of the navigation device 100 receives the pulse moving distance information transmitted from the navigation server 200 and stores it in the pulse moving distance file 106a (step SA-5).

  Then, the pulse movement distance calculation unit 102d of the navigation device 100 sets two arbitrary points (start point and end point of the section in which the vehicle speed pulse is measured) for measuring the vehicle speed pulse (step SA-6). The pulse movement distance calculation unit 102d may set two nodes (for example, two branch points) based on the network data stored in the map database 106b as two arbitrary points, and the route guide unit 102h Two points on the guide route may be set. For example, the section specified by two arbitrary points may be a section specified by a link in network data, or may be a section between highway interchanges on a guide route by the route guide unit 102h. Here, the link may be a road section between nodes having a predetermined length (for example, 100 m or more), or may be a composite link in which a plurality of links are connected to form a predetermined length. Good.

  Then, the pulse movement distance calculation unit 102d of the navigation device 100 determines whether or not the current position has reached the start point of the two points set based on the current position information acquired by the current position information acquisition unit 102c ( Step SA-7).

  When the pulse movement distance calculation unit 102d of the navigation device 100 determines that the starting point has not been reached (No at Step SA-7), the pulse movement distance calculation unit 102d follows the update of the current position information acquired by the current position information acquisition unit 102c. The determination process is continued until the current position reaches the start point, and when it is determined that the start point has been reached (step SA-7, Yes), counting of vehicle speed pulses detected by the vehicle speed pulse detection unit 114 is started (step SA). -8).

  Then, the pulse movement distance calculation unit 102d of the navigation device 100 determines whether or not the current position has reached the set end points of the two points based on the current position information acquired by the current position information acquisition unit 102c ( Step SA-9).

  When the pulse movement distance calculation unit 102d of the navigation device 100 determines that the end point has not been reached (No at Step SA-9), the vehicle speed pulse detection unit 114 continues to count the vehicle speed pulses. (Step SA-8) When it is determined that the end point has been reached (Step SA-9, Yes), the counting of the vehicle speed pulse is ended.

  Then, the pulse movement distance calculation unit 102d of the navigation device 100 calculates the movement distance per pulse based on the number of vehicle speed pulses counted between the two set points and the distance between the two points (step SA). -10). For example, the pulse movement distance calculation unit 102d calculates the movement distance per pulse by dividing the distance between two points by the number of pulses of the vehicle speed pulse. Here, the pulse movement distance calculation unit 102d may obtain the distance between the two points from the link length of the network data stored in the map database 106b (for example, the sum of the link lengths in the case of a composite link). You may calculate based on the log | history of the present position information acquired by the position information acquisition part 102c. For example, the pulse movement distance calculation unit 102d stores, in the storage unit 106, the update history of the current position information acquired by the current position information acquisition unit 102c between the set two points, and the various locations obtained as the current position The distance between two points may be calculated by calculating the sum of the distances between the points, or by connecting a number of points obtained as the current position with a curve and calculating the curve distance. The distance between the two points may be calculated.

  Then, the difference storage unit 102e of the navigation device 100 includes a moving distance per pulse of the pulse moving distance information received by the pulse moving distance information receiving unit 102b and stored in the pulse moving distance file 106a, and a pulse moving distance calculating unit 102d. The difference between the movement distance per pulse calculated by the above is calculated and stored in the statistical data file 106c (step SA-11). That is, the difference storage unit 102e uses the movement distance per pulse of the pulse movement distance information stored in the pulse movement distance file 106a as a reference value for the movement distance per pulse calculated by the pulse movement distance calculation unit 102d. The difference from the measured value is calculated and accumulated as statistical data in the statistical data file 106c.

  Then, the pulse movement distance information correction unit 102f of the navigation device 100 determines whether or not the difference statistical data stored in the statistical data file 106c by the difference storage unit 102e is sufficiently accumulated until the statistical processing can be performed (step). SA-12). For example, the pulse movement distance information correction unit 102f may perform the determination based on whether or not the difference statistical data accumulated in the statistical data file 106c has reached a predetermined number.

  When it is determined that the statistical data of the difference is not sufficiently accumulated in the statistical data file 106c (No at Step SA-12), the navigation device 100 returns the process to Step SA-6 and performs the above-described Step SA-6. -Repeat the process of step SA-12.

  On the other hand, when it is determined that the statistical data of the difference is sufficiently accumulated in the statistical data file 106c (Yes at Step SA-12), the pulse movement distance information correction unit 102f of the navigation device 100 determines the difference accumulated in the statistical data file 106c. Based on the statistical data, the pulse movement distance information is corrected by learning through statistical processing and stored in the pulse movement distance file 106a (step SA-13). For example, the pulse movement distance information correction unit 102f learns an appropriate movement distance per pulse by known statistical processing based on the statistical data of the difference accumulated in the statistical data file 106c, and calculates the movement distance per pulse. The correction value is acquired and the pulse movement distance information in the pulse movement distance file 106a is updated as the correction pulse movement distance information. As described above, the pulse movement distance information correction unit 102f reflects the learning result in the pulse movement distance information of the pulse movement distance file 106a every time a certain amount of difference statistical data is accumulated in the statistical data file 106c. As a result, the movement distance per pulse is brought closer to the actual accurate value.

  Then, the corrected pulse moving distance information transmitting unit 102g of the navigation device 100 associates the corrected pulse moving distance information corrected by the pulse moving distance information correcting unit 102f and stored in the pulse moving distance file 106a with the vehicle type information. 200 (step SA-14). Here, the corrected pulse moving distance information transmitting unit 102g receives the initial data of the pulse moving distance information received by the pulse moving distance information receiving unit 102b and stored in the pulse moving distance file 106a by the pulse moving distance information correcting unit 102f. The updated corrected pulse moving distance information stored in the pulse moving distance file 106a may be transmitted to the navigation server 200 when the number of times updated has been counted.

  Then, the correction pulse movement distance information receiving unit 202d of the navigation server 200 receives the correction pulse movement distance information associated with the vehicle type information transmitted from the navigation device 100 (step SA-15).

  Then, the correction pulse movement distance information storage unit 202e of the navigation server 200 stores the correction pulse movement distance information received by the correction pulse movement distance information reception unit 202d in the pulse movement distance database 206a in association with the vehicle type information (step SA-16). Here, the correction pulse movement distance information storage unit 202e is based on the correction pulse movement distance information received by the correction pulse movement distance information reception unit 202d, and is stored in the pulse movement distance database 206a corresponding to the vehicle type information. The travel distance information may be updated. Further, the correction pulse movement distance information storage unit 202e performs statistical processing based on a plurality of correction pulse movement distance information corresponding to the same vehicle type information transmitted from the plurality of navigation devices 100, and based on the statistical processing result. The corresponding pulse movement distance information stored in the pulse movement distance database 206a may be corrected.

  Above, description of an example of the process of the navigation system in 1st Embodiment is finished.

[Second Embodiment]
Next, a second embodiment (navigation server 200 (server-driven type)) of the present invention will be described below with reference to FIGS. In the second embodiment, the navigation server 200 adjusts the travel distance per pulse of the vehicle speed pulse detected by the vehicle speed pulse detection unit 114 of the navigation device 100, and transmits this data to the navigation device 100. Thus, the navigation apparatus 100 functions to adjust the travel distance, vehicle speed, and the like calculated from the vehicle speed pulse. As described above, the second embodiment is different from the first embodiment in that the navigation server 200 performs server-driven processing.

[Configuration of the navigation server 200 (server-driven type)]
First, an example of the configuration of the navigation server 200 (server-driven type) in the second embodiment will be described below with reference to FIG. Here, FIG. 3 is a block diagram showing an example of the configuration of the navigation server 200 in the second embodiment, and conceptually shows only the portion related to the present invention in the configuration.

  As shown in FIG. 3, the navigation server 200 according to the second embodiment of the present invention includes a position acquisition unit 112, a vehicle speed pulse detection unit 114, an output unit 118, an input unit 116, and a control unit 102. 100 is communicably connected, and includes at least a control unit 202 and a storage unit 206. As an example, the communication includes remote communication such as wired / wireless communication via the network 300. The navigation server 200 and the navigation device 100 are communicably connected via an arbitrary communication path.

  In FIG. 3, the navigation server 200 receives the vehicle type information transmitted from the navigation device 100, acquires pulse movement distance information corresponding to the received vehicle type information from the storage unit 106, and detects vehicle speed pulses between any two points. The vehicle speed pulse detected by the unit 114 is received from the navigation device 100, the travel distance per pulse is calculated based on the number of the received vehicle speed pulses and the distance between the two points, and the obtained pulse travel distance The difference between the movement distance per pulse of information and the calculated movement distance per pulse is calculated and stored in the storage unit 106, and the pulse movement is performed by learning by statistical processing based on the difference stored in the storage unit 106 By correcting the distance information and sending the corrected pulse travel distance information to the navigation device, A function such as to set the moving distance per pulse of the speed pulse detected by the scan detector.

  The functions of the communication control interface unit 204, the pulse movement distance database 206a of the storage unit 206, the vehicle type information reception unit 202a of the control unit 202, and the pulse movement distance information acquisition unit 202b in the navigation server 200 are the same as those in the first embodiment. Since it is the same, description is abbreviate | omitted. In addition, since the functions of the position acquisition unit 112, the vehicle speed pulse detection unit 114, the output unit 118, and the input unit 116 in the navigation device 100 are the same as those in the first embodiment, description thereof is omitted.

  In FIG. 3, a map database 206b is map data storage means for storing map data. As an example, the map data stored in the map database 206b includes 1) map drawing data, 2) network data, and 3) spot data, as described above in the first embodiment. Used for purposes such as route search and map display. These various types of map data are stored in advance in the map database 206b, and the control unit 102 of the navigation server 200 periodically downloads the latest map data via the network 300 and stores it in the map database 206b. Various map data may be updated.

  The statistical data file 206c is statistical data storage means for storing, as statistical data, the difference in moving distance per pulse calculated by the pulse moving distance calculating unit 202n. That is, in the statistical data file 206c, the movement distance per pulse of the pulse movement distance information acquired from the pulse movement distance database 206a by the pulse movement distance information acquisition unit 202b and the 1 calculated by the pulse movement distance calculation unit 202n. The difference between the movement distance per pulse and the statistical data is accumulated.

  In FIG. 3, the control unit 202 includes an internal memory for storing a control program such as an OS, a program that defines various processing procedures, and required data. And the control part 202 performs the information processing for performing various processes with these programs. The control unit 202 is functionally conceptual in terms of a vehicle type information receiving unit 202a, a pulse moving distance information acquiring unit 202b, a route search condition receiving unit 202f, a route searching unit 202g, a route guidance information generating unit 202h, a route guidance control unit 202i, a position An information signal receiving unit 202j, a current position information acquiring unit 202k, a vehicle speed pulse receiving unit 202m, a pulse moving distance calculating unit 202n, a difference storing unit 202p, a pulse moving distance information correcting unit 202q, and a pulse moving distance information setting unit 202r are provided. Configured. Note that the functions of the vehicle type information receiving unit 202a and the pulse movement distance information acquiring unit 202b are the same as those in the first embodiment, and thus description thereof is omitted.

  Among these, the route search condition receiving unit 202f is route search condition receiving means for receiving a route search condition including at least a departure place and a destination transmitted from the navigation device 100. Here, the route search condition may include a waypoint, and the route search condition may be information input by the user via the input unit 116.

  The route search unit 202g stores, in the map database 206b, the guide route from the starting point to the destination that satisfies the route search condition including at least the starting point and the destination received by the route searching condition receiving unit 202f. It is a route search means for searching using network data and generating guide route data.

  The route guidance information generation unit 202h generates route guidance information based on the guidance route data generated by the route search unit 202g and the current position information of the user of the navigation device 100 acquired by the current position information acquisition unit 202k. Route guidance information generating means. Here, the route guidance information generation unit 202h superimposes and displays the current position information of the user of the navigation device 100 acquired by the current position information acquisition unit 202k on the guidance route data generated by the route search unit 202g. You may generate the route guidance information which consists of a display screen. In addition, the route guidance information generation unit 202h generates the guidance route data generated by the route search unit 202g and / or the current position information acquisition unit on the map drawing data of the map including the guidance route stored in the map database 206b. Route guidance information including a display screen on which the current position information acquired by 202k is superimposed and displayed may be generated. Further, the route guidance information generation unit 202h may generate route guidance information based on the guidance data stored in the storage unit 206. Specifically, the route guidance information generation unit 202h is displayed from a display screen that displays voice guidance data output on the guidance route included in the guidance data and / or display guidance data such as TBT included in the guidance data. Route guidance information may be generated.

  In addition, the route guidance control unit 202i transmits the route guidance information generated by the route guidance information generation unit 202h to the navigation device 100, thereby causing the output unit 118 of the navigation device 100 to output the route guidance information and executing the route guidance. It is a guidance control means. For example, the route guidance control unit 202i displays the display screen displaying the route guidance information, which is display data, on the output unit 118 by transmitting the route guidance information generated by the route guidance information generation unit 202h to the navigation device 100. And route guidance may be executed. In addition, the route guidance control unit 202i transmits route guidance information based on the guidance data to the navigation device 100, thereby displaying a display screen displaying the route guidance information as display guidance data on the output unit 118, and / or The route guidance may be executed by causing the output unit 118 to output route guidance information that is voice guidance data.

  The position information signal receiving unit 202j is a position information signal receiving unit that receives the position information signal transmitted from the navigation device 100 and acquired by the position acquisition unit 112 of the navigation device 100. Here, the position information signal receiving unit 202j may further receive direction information such as the traveling direction of the navigation device 100 detected by the direction sensor of the position acquisition unit 112 of the navigation device 100. Further, the position information signal receiving unit 202j may receive the position information signal acquired from the position acquisition unit 112 of the navigation device 100 and transmitted from the navigation device 100 every predetermined cycle (for example, every second). Good. Further, the position information signal receiving unit 202j may receive information on the current position and / or the traveling direction input by the user via the input unit 116 of the navigation device 100. Specifically, the position information signal receiving unit 202j is designated on the display screen that displays the map data displayed on the output unit 118 of the navigation device 100 to the user via the input unit 116 of the navigation device 100 (for example, Coordinates and / or orientation information that has been designated) or the like may be received. Here, the position information signal receiving unit 202j receives the position information signal transmitted from the navigation device 100 and received by the position acquisition unit 112 of the navigation device 100 at predetermined intervals (for example, every second). Also good.

  The current position information acquisition unit 202k is a current position information acquisition unit that acquires the current position information of the user of the navigation device 100 based on the position information signal received by the position information signal reception unit 202j. Here, the current position information acquisition unit 202k includes the position information calculated from the position information signal received by the position information signal receiving unit 202j and / or the azimuth information received by the position information signal receiving unit 202j. The current position information of 100 users may be acquired. Further, the current position information of the user of the navigation device 100 may be acquired based on the position information signal received at predetermined intervals (for example, every second) by the position information signal receiving unit 202j. In addition, the current position information acquisition unit 202k is information received by the user via the input unit 116 of the navigation device 100 and / or information on the traveling direction received by the position information signal receiving unit 202j. The current position information of the user of the navigation device 100 may be acquired.

  The vehicle speed pulse receiving unit 202m is vehicle speed pulse receiving means for receiving the vehicle speed pulse transmitted from the navigation device 100 and detected by the vehicle speed pulse detecting unit 114 of the navigation device 100. Further, the vehicle speed pulse receiving unit 202m receives the number of vehicle speed pulses detected by the vehicle speed pulse detecting unit 114 of the navigation device 100, which is transmitted from the navigation device 100 every predetermined period (for example, every second). May be.

  In addition, the pulse movement distance calculation unit 202n measures the number of vehicle speed pulses received by the vehicle speed pulse reception unit 202m between any two points, and 1 pulse based on the distance and the number of pulses between the two points. It is a pulse movement distance calculation means for calculating the per-movement distance. For example, the pulse movement distance calculation unit 202n divides the distance between two points by the number of vehicle speed pulses detected by the vehicle speed pulse detection unit 114 of the navigation device 100 between the two points. Calculate the distance. Here, the pulse movement distance calculation unit 202n sets two arbitrary points based on the network data stored in the map database 206b, and updates the current position information acquired by the current position information acquisition unit 102c, thereby setting the setting. The start point and end point of the two points are determined, the number of vehicle speed pulses detected by the vehicle speed pulse detection unit 114 between the start point and the end point, and received by the position information signal reception unit 202j, and the link data of the network data The movement distance per pulse may be calculated based on the stored link length (movement distance of the road section). In addition, the pulse movement distance calculation unit 202n may set two nodes (for example, two branch points) of the network data as two arbitrary points, and on the guidance route controlled by the route guidance control unit 202i. Two points may be set. For example, between two arbitrary points may be a section between expressway interchanges or a section specified by a link in network data. Here, the road link may be a road section between nodes having a predetermined length (for example, 100 m or more), and is a composite link in which a plurality of links are connected to form a predetermined length. Also good. Note that the distance between the two points is not limited to acquiring from the known distance data stored in the network data or the like, and the pulse movement distance calculating unit 202n is acquired by the current position information acquiring unit 202k between the two points. The distance between the two points may be calculated based on the current position information. For example, the pulse movement distance calculation unit 202n may obtain the distance between the two points by calculating the straight line distance between the two points calculated as the current position information or the curved distances of many points.

  Further, the difference storage unit 202p includes a movement distance per pulse of the pulse movement distance information acquired by the pulse movement distance information acquisition unit 202b, a movement distance per pulse calculated by the pulse movement distance calculation unit 202n, Is a difference storage means for calculating the difference between the two and storing it in the statistical data file 206c. That is, the difference storage unit 202p uses the movement distance per pulse of the pulse movement distance information acquired by the pulse movement distance information acquisition unit 202b as a reference value, and the movement per pulse calculated by the pulse movement distance calculation unit 202n. A difference from the measured value of the distance is calculated and accumulated as statistical data in the statistical data file 206c.

  The pulse movement distance information correction unit 202q is a pulse movement distance information correction unit that corrects the pulse movement distance information by learning through statistical processing based on the statistical data of the difference stored in the statistical data file 206c by the difference storage unit 202p. It is. For example, the pulse moving distance information correction unit 202q learns an appropriate moving distance per pulse by statistical processing based on the statistical data of the difference accumulated in the statistical data file 206c, and corrects the moving distance per pulse. The value is acquired to correct the pulse moving distance information. As described above, the pulse movement distance information correction unit 202q reflects the learning result in the pulse movement distance information acquired from the pulse movement distance database 206a by the pulse movement distance information acquisition unit 202b, thereby moving the movement per pulse. Move the distance closer to the actual accurate value.

  The pulse movement distance information setting unit 202r transmits one pulse of the vehicle speed pulse detected by the vehicle speed pulse detection unit 114 by transmitting the pulse movement distance information corrected by the pulse movement distance information correction unit 202q to the navigation device 100. This is pulse movement distance information setting means for setting a per-movement distance. The pulse movement distance information set in the navigation device 100 is used to obtain the vehicle speed, the movement distance, and the like based on the vehicle speed pulse detected by the vehicle speed pulse detection unit 114.

  Above, description of an example of a structure of the navigation server 200 in 2nd Embodiment is finished.

[Processing of navigation server 200 (server-driven type)]
Next, an example of processing of the navigation server 200 in the second embodiment configured as described above will be described in detail below with reference to FIG. FIG. 4 is a flowchart illustrating an example of processing of the navigation server in the second embodiment.

  As shown in FIG. 4, first, the control unit 102 of the navigation device 100 transmits vehicle type information to the navigation server 200 (step SB-1). Here, the vehicle information may be information input by the user via 116, may be information acquired from the ECU of the vehicle, or may be preset information.

  Then, the vehicle type information receiving unit 202a of the navigation server 200 receives the vehicle type information transmitted from the navigation device 100 (step SB-2).

  Then, the pulse movement distance information acquisition unit 202b of the navigation server 200 acquires the pulse movement distance information corresponding to the vehicle type information received by the vehicle type information reception unit 202a from the pulse movement distance database 206a (step SB-3). That is, the pulse travel distance information acquisition unit 202b acquires, from the pulse travel distance database 206a, pulse travel distance information that defines the travel distance per pulse of the vehicle speed pulse corresponding to the vehicle type of the vehicle targeted by the navigation device 100. .

  Then, the control unit 102 of the navigation device 100 transmits the route search condition including at least the departure place and the destination input by the user via the input unit 116 to the navigation server 200 (step SB-4).

  Then, the route search condition receiving unit 202f of the navigation server 200 receives the route search condition including at least the departure place and the destination transmitted from the navigation device 100 (step SB-5).

  Then, the route search unit 202g of the navigation server 200 displays the guide route from the starting point to the destination that satisfies the route search condition including at least the starting point and the destination received by the route searching condition receiving unit 202f, in the map database 206b. The search is performed using the network data or the like stored in, and guide route data is generated (step SB-6). Here, the departure point is the current location information acquisition unit 202k of the user of the navigation device 100 based on the current location information acquired based on the location information signal received from the navigation device 100 by the location information signal reception unit 202j. It may be a position.

  Then, the route guidance information generation unit 202h of the navigation server 200 uses the guidance route data generated by the route search unit 202g and the current position information acquisition unit 202k on the map drawing data stored in the map database 206b for a predetermined period. Route guidance information composed of a display screen on which current position information acquired every time (for example, every second) is displayed in a superimposed manner is generated (step SB-7). Here, the route guidance information generation unit 202h receives voice guidance data output on the guidance route included in the guidance data stored in the storage unit 206 and / or display guidance data such as TBT included in the guidance data. You may generate the route guidance information which consists of the displayed display screen.

  Then, the route guidance control unit 202i of the navigation server 200 outputs the route guidance information to the output unit 118 of the navigation device 100 by transmitting the route guidance information generated by the route guidance information generation unit 202h to the navigation device 100. And route guidance is executed (step SB-8).

  Then, the pulse movement distance calculation unit 202n of the navigation server 200 calculates the number of vehicle speed pulses received by the vehicle speed pulse reception unit 202m between any two points on the guidance route controlled by the route guidance control unit 202i. Measurement is performed, and the movement distance per pulse is calculated based on the distance between the two points and the number of pulses (step SB-9).

  Here, an example of the calculation of the movement distance per pulse in the present embodiment will be described with reference to FIG. FIG. 5 is a flowchart showing an example of calculation of the movement distance per pulse in the present embodiment.

  As shown in FIG. 5, the pulse movement distance calculation unit 202n of the navigation server 200 is obtained by the current position information acquisition unit 202k based on the position information signal received from the navigation device 100 by the position information signal reception unit 202j. When the current position of the user of the navigation device 100 based on the position information matches the start point between the two points, a vehicle speed pulse acquisition command is transmitted to the navigation device 100 (step SC-1).

  And the control part 102 of the navigation apparatus 100 receives the acquisition command of the vehicle speed pulse transmitted from the navigation server 200 (step SC-2).

  And the control part 102 of the navigation apparatus 100 is based on the acquisition command received in step SC-2, and the vehicle speed pulse data (for example, detected by the vehicle speed pulse detection part 114 from ECU etc. of the vehicle in which the navigation apparatus 100 is mounted). Vehicle speed pulse cumulative count value, etc.) are acquired and transmitted to the navigation server (step SC-3).

  Then, the vehicle speed pulse receiving unit 202m of the navigation server 200 receives the vehicle speed pulse data transmitted from the navigation device 100 (step SC-4).

  Then, the pulse travel distance calculating unit 202n of the navigation server 200 stores the vehicle speed pulse data received by the vehicle speed pulse receiving unit 202m in Step SC-4 in the storage unit 206 (Step SC-5).

  Then, the pulse movement distance calculation unit 202n of the navigation server 200 performs navigation based on the current position information acquired by the current position information acquisition unit 202k based on the position information signal received from the navigation device 100 by the position information signal reception unit 202j. When the current position of the user of the device 100 matches the end point between the two points, a vehicle speed pulse acquisition command is transmitted to the navigation device 100 (step SC-6).

  And the control part 102 of the navigation apparatus 100 receives the acquisition command of the vehicle speed pulse transmitted from the navigation server 200 (step SC-7).

  And the control part 102 of the navigation apparatus 100 acquires the vehicle speed pulse data detected by the vehicle speed pulse detection part 114 from ECU etc. of the vehicle carrying the navigation apparatus 100 based on the acquisition command received in step SC-7, It transmits to a navigation server (step SC-8).

  Then, the vehicle speed pulse receiving unit 202m of the navigation server 200 receives the vehicle speed pulse data transmitted from the navigation device 100 (step SC-9).

  Then, the pulse travel distance calculation unit 202n of the navigation server 200 stores the cumulative count value of the vehicle speed pulses included in the vehicle speed pulse data received by the vehicle speed pulse reception unit 202m in step SC-9, and the step SC-5. The number of vehicle speed pulses between the two points is calculated from the difference from the accumulated count value of the vehicle speed pulses included in the vehicle speed pulse data stored in the unit 206 (step SC-10).

  Then, the pulse movement distance calculation unit 202n of the navigation server 200 calculates the movement distance per pulse based on the number of vehicle speed pulses calculated in step SC-10 and the distance between the two points (step). SC-11). For example, the pulse movement distance calculation unit 202n may calculate the movement distance per pulse by dividing the distance between two points by the number of vehicle speed pulses. The distance between the two points may be obtained from the link length of the network data stored in the map database 206b (for example, the sum of the link lengths in the case of a composite link), and the current position information acquisition unit 202k between the two points. It may be calculated based on the history of the current position information acquired by the above. For example, the pulse movement distance calculation unit 202n stores the update history of the current position information acquired by the current position information acquisition unit 102c between the two points in the storage unit 106, and between each point obtained as the current position By calculating the sum of the distances, the distance between the two points set may be calculated, or a number of points obtained as the current position are connected by a curve, and the curve distance is calculated to calculate the set 2 You may calculate the distance between points.

  Returning to FIG. 4 again, when the movement distance per pulse is calculated by the pulse movement distance calculation unit 202n (step SB-9), the difference storage unit 202p of the navigation server 200 is acquired by the pulse movement distance information acquisition unit 202b. The difference between the movement distance per pulse of the pulse movement distance information thus obtained and the movement distance per pulse calculated by the pulse movement distance calculation unit 202n is calculated and stored in the statistical data file 206c (step SB- 10). That is, the difference storage unit 202p uses the movement distance per pulse of the pulse movement distance information acquired by the pulse movement distance information acquisition unit 202b as a reference value, and the movement per pulse calculated by the pulse movement distance calculation unit 202n. A difference from the measured value of the distance is calculated and accumulated as statistical data in the statistical data file 206c.

  Then, the pulse movement distance information correction unit 202q of the navigation server 200 determines whether or not the difference statistical data stored in the statistical data file 206c by the difference storage unit 202p is sufficiently accumulated until the statistical processing can be performed (step). SB-11). For example, the pulse movement distance information correction unit 202q may perform the determination based on whether or not the difference statistical data accumulated in the statistical data file 206c has reached a predetermined number.

  When it is determined that the statistical data of the difference is not sufficiently accumulated in the statistical data file 206c (No in Step SB-11), the navigation server 200 returns the process to Step SB-9 and performs the above-described Step SB-9. -Repeat the process of step SB-11. In addition, when the route guidance by control of the route guidance control part 202i is complete | finished, the navigation apparatus 100 may return a process to step SB-5.

  On the other hand, when it is determined that the statistical data of the difference is sufficiently accumulated in the statistical data file 206c (step SB-11, Yes), the pulse movement distance information correction unit 202q of the navigation server 200 determines the difference accumulated in the statistical data file 206c. Based on the statistical data, pulse travel distance information is corrected by learning through statistical processing (step SB-12). For example, the pulse movement distance information correction unit 202q learns an appropriate movement distance per pulse by known statistical processing based on the statistical data of the difference accumulated in the statistical data file 206c, and calculates the movement distance per pulse. The correction value is acquired to correct the pulse moving distance information. In this way, the pulse movement distance information correction unit 202q reflects the learning result in the pulse movement distance information every time statistical data of a certain amount of difference is accumulated in the statistical data file 206c, and sets the movement distance per pulse. It will be close to the actual accurate value.

  Then, the pulse movement distance information setting unit 202r of the navigation server 200 transmits the pulse movement distance information corrected by the pulse movement distance information correction unit 202q to the navigation device 100 (step SB-13), thereby the vehicle speed pulse detection unit. The moving distance per pulse of the vehicle speed pulse detected by 114 is set (step SB-14). That is, the pulse movement distance information set in the navigation device 100 is used to obtain the vehicle speed, the movement distance, and the like based on the vehicle speed pulse detected by the vehicle speed pulse detection unit 114. The pulse movement distance information setting unit 202r performs statistical processing on a plurality of navigation devices 100 corresponding to the same vehicle type information based on the pulse movement distance information corrected by the pulse movement distance information correction unit 202q. Based on the result, the corresponding pulse moving distance information stored in the pulse moving distance database 206a may be updated.

  Above, description of an example of the process of the navigation server 200 in 2nd Embodiment is finished.

[Other embodiments]
Although the embodiments of the present invention have been described so far, the present invention can be implemented in various different embodiments within the scope of the technical idea described in the claims other than the above-described embodiments. It may be done.

  In addition, among the processes described in the embodiment, all or part of the processes described as being automatically performed can be performed manually, or the processes described as being performed manually can be performed. All or a part can be automatically performed by a known method.

  In addition, unless otherwise specified, processing procedures, control procedures, specific names, information including parameters such as registration data and facility search conditions, screen examples, and database configurations shown in the literature and drawings Can be changed arbitrarily.

  Further, regarding the navigation device 100 and the navigation server 200, each illustrated component is functionally conceptual and does not necessarily need to be physically configured as illustrated.

  For example, the processing functions provided in each device of the navigation device 100 and the navigation server 200, in particular, the processing functions performed by the control unit 102 and the control unit 202 are all or any part of the processing functions. (Central Processing Unit) and a program interpreted and executed by the CPU, or can be realized as hardware by wired logic. The program is recorded on a recording medium to be described later, and is mechanically read by the navigation device 100 and the navigation server 200 as necessary. In other words, the storage units 106 and 206, such as ROM or HD, record computer programs for giving various instructions to the CPU in cooperation with the OS. This computer program is executed by being loaded into the RAM, and constitutes a control unit in cooperation with the CPU.

  The computer program may be stored in the navigation apparatus 100 and an application program server connected to the navigation server 200 via an arbitrary network 300, and all or part of the computer program is stored as necessary. It can also be downloaded.

  In addition, the program according to the present invention may be stored in a computer-readable recording medium, and may be configured as a program product. Here, the “recording medium” is an arbitrary “portable physical medium” such as a flexible disk, a magneto-optical disk, a ROM, an EPROM, an EEPROM, a CD-ROM, an MO, a DVD, a Blu-ray Disc, or the like. It includes a “communication medium” that holds a program in a short period of time, such as a communication line or a carrier wave when a program is transmitted via a network represented by a LAN, WAN, or the Internet.

  The “program” is a data processing method described in an arbitrary language or description method, and may be in any format such as source code or binary code. Note that the “program” is not necessarily limited to a single configuration, and functions are achieved in cooperation with a separate configuration such as a plurality of modules and libraries or a separate program represented by the OS. Including things. Note that a well-known configuration and procedure can be used for a specific configuration for reading a recording medium, a reading procedure, an installation procedure after reading, and the like in each device described in the embodiment.

  Various databases (pulse travel distance file 106a to statistical data file 106c, pulse travel distance database 206a to statistical data file 206c, etc.) stored in the storage units 106 and 206 are stored in memory devices such as RAM and ROM, HD and SSD, etc. These are storage means such as fixed disk devices, flexible disks, optical disks, etc., and store various programs, tables, databases, web page files, etc. used for various processing and website provision.

  Further, the navigation device 100 and the navigation server 200 may be configured as an information processing device such as a known personal computer or workstation, and may be configured by connecting any peripheral device to the information processing device. Also good. The navigation apparatus 100 and the navigation server 200 may be realized by installing software (including programs, data, and the like) that causes the information processing apparatus to realize the method of the present invention.

  Furthermore, the specific form of distribution / integration of the devices is not limited to that shown in the figure, and all or a part of them may be functional or physical in arbitrary units according to various additions or according to functional loads. Can be distributed and integrated.

  As described above in detail, according to the present invention, it is possible to reduce the time required for the moving distance per pulse of the vehicle speed pulse to approach the actual accurate value, the navigation system, the navigation device, the navigation server, and Since the pulse moving distance learning method can be provided, it is extremely useful in various fields such as information equipment and information processing fields that support navigation.

100 Navigation device 102 Control unit
102a Model information transmitter
102b Pulse travel distance information receiver
102c Current position information acquisition unit
102d Pulse movement distance calculation unit
102e difference storage unit
102f Pulse movement distance information correction unit
102g Correction pulse travel distance information transmitter
102h Route guidance unit 104 Communication control interface unit 106 Storage unit
106a Pulse travel distance file
106b Map database
106c Statistical data file 108 Input / output control interface unit 112 Position acquisition unit 114 Vehicle speed pulse detection unit 116 Input unit 118 Output unit 200 Navigation server 202 Control unit
202a Vehicle type information receiver
202b Pulse travel distance information acquisition unit
202c Pulse travel distance information transmitter
202d Correction pulse moving distance information receiving unit
202e Correction pulse moving distance information storage unit
202f Route search condition receiver
202g Route search unit
202h Route guidance information generator
202i route guidance control unit
202j Position information signal receiver
202k Current position information acquisition unit
202m Vehicle speed pulse receiver
202n Pulse travel distance calculation unit
202p difference storage
202q pulse travel distance information correction unit
202r Pulse movement distance information setting unit 204 Communication control interface unit 206 Storage unit
206a Pulse travel distance database
206b Map database
206c Statistical data file 300 Network 500 Position transmitter

Claims (10)

A navigation system in which a navigation server including at least a control unit and a storage unit, and a navigation device including at least a vehicle speed pulse detection unit, a storage unit, and a control unit are communicably connected,
The storage unit of the navigation server includes:
Pulse movement distance information storage means for storing pulse movement distance information relating to movement distance per pulse of vehicle speed pulses in a vehicle of the vehicle type in association with vehicle type information relating to the vehicle type of the vehicle;
With
The control unit of the navigation server is
Vehicle type information receiving means for receiving the vehicle type information transmitted from the navigation device;
Pulse movement distance information acquisition means for acquiring the pulse movement distance information corresponding to the vehicle type information received by the vehicle type information reception means from the vehicle speed pulse movement distance storage means;
Pulse moving distance information transmitting means for transmitting the pulse moving distance information acquired by the vehicle speed pulse moving distance acquiring means to the navigation device;
With
The control unit of the navigation device includes:
Vehicle type information transmitting means for transmitting the vehicle type information to the navigation server;
Pulse moving distance information receiving means for receiving the pulse moving distance information transmitted from the navigation server;
A pulse for measuring the number of pulses of the vehicle speed pulse detected by the vehicle speed pulse detection unit between any two points and calculating the movement distance per pulse based on the distance between the two points and the number of pulses. A moving distance calculating means;
Calculate the difference between the movement distance per pulse of the pulse movement distance information received by the pulse movement distance reception means and the movement distance per pulse calculated by the pulse movement distance calculation means. Difference storage means for storing in the storage unit;
Pulse movement distance information correction means for correcting the pulse movement distance information by learning by statistical processing based on the difference stored in the storage unit by the difference storage means;
A navigation system characterized by comprising: The navigation system according to claim 1,
The control unit of the navigation device includes:
Corrected pulse moving distance information transmitting means for transmitting the corrected pulse moving distance information, which is the pulse moving distance information corrected by the pulse moving distance information correcting means, to the navigation server in association with the vehicle type information;
The control unit of the navigation server is
Correction pulse movement distance information receiving means for receiving the correction pulse movement distance information associated with the vehicle type information transmitted from the navigation device;
Correction pulse movement distance information storage means for storing the correction pulse movement distance information received by the correction pulse movement distance information reception means in association with the vehicle type information in the pulse movement distance storage means;
A navigation system characterized by comprising: The navigation system according to claim 1 or 2,
The control unit of the navigation device includes:
Route guidance means for performing route guidance on the guidance route,
Further comprising
The pulse moving distance calculating means is
Two points on the guidance route by the route guidance means are set as the two arbitrary points, and the movement distance per pulse is calculated based on the distance between the two points and the number of pulses. A navigation system. A navigation device including at least a vehicle speed pulse detection unit, a storage unit, and a control unit, which is communicably connected to a navigation server including at least a storage unit,
The storage unit of the navigation server includes:
Pulse movement distance information storage means for storing pulse movement distance information relating to movement distance per pulse of vehicle speed pulses in a vehicle of the vehicle type in association with vehicle type information relating to the vehicle type of the vehicle;
With
The control unit
Vehicle type information transmitting means for transmitting the vehicle type information to the navigation server;
Pulse moving distance information receiving means for receiving the pulse moving distance information corresponding to the vehicle type information transmitted from the navigation server;
A pulse for measuring the number of pulses of the vehicle speed pulse detected by the vehicle speed pulse detection unit between any two points and calculating the movement distance per pulse based on the distance between the two points and the number of pulses. A moving distance calculating means;
Calculate the difference between the movement distance per pulse of the pulse movement distance information received by the pulse movement distance reception means and the movement distance per pulse calculated by the pulse movement distance calculation means. Difference storage means for storing in the storage unit;
Pulse movement distance information correction means for correcting the pulse movement distance information by learning by statistical processing based on the difference stored in the storage unit by the difference storage means;
A navigation device comprising: A navigation server including at least a control unit and a storage unit, connected to a navigation device including at least a vehicle speed pulse detection unit.
The storage unit
Pulse movement distance information storage means for storing pulse movement distance information relating to movement distance per pulse of vehicle speed pulses in a vehicle of the vehicle type in association with vehicle type information relating to the vehicle type of the vehicle;
With
The control unit
Vehicle type information receiving means for receiving the vehicle type information transmitted from the navigation device;
Pulse movement distance information acquisition means for acquiring the pulse movement distance information corresponding to the vehicle type information received by the vehicle type information reception means from the vehicle speed pulse movement distance storage means;
By transmitting the pulse travel distance information acquired by the vehicle speed pulse travel distance acquisition means to the navigation device, the travel speed per pulse based on the pulse travel distance information and the vehicle speed pulse between any two points. The difference between the number of vehicle speed pulses detected by the detection unit and the movement distance per pulse calculated based on the distance between the two points is calculated, and the movement per pulse is performed by learning through statistical processing. Pulse moving distance information transmitting means for correcting the distance;
A navigation server comprising: A navigation server including at least a control unit and a storage unit, connected to a navigation device including at least a vehicle speed pulse detection unit.
The storage unit
Pulse movement distance information storage means for storing pulse movement distance information relating to movement distance per pulse of vehicle speed pulses in a vehicle of the vehicle type in association with vehicle type information relating to the vehicle type of the vehicle;
With
The control unit of the navigation server is
Vehicle type information receiving means for receiving the vehicle type information transmitted from the navigation device;
Pulse movement distance information acquisition means for acquiring the pulse movement distance information corresponding to the vehicle type information received by the vehicle type information reception means from the vehicle speed pulse movement distance storage means;
Vehicle speed pulse receiving means for receiving, from the navigation device, the vehicle speed pulse detected by the vehicle speed pulse detection unit between any two points;
Pulse moving distance calculating means for calculating the moving distance per pulse based on the number of pulses of the vehicle speed pulse received by the vehicle speed pulse receiving means and the distance between the two points;
The difference between the moving distance per pulse of the pulse moving distance information acquired by the pulse moving distance receiving means and the moving distance per pulse calculated by the pulse moving distance calculating means is calculated and Difference storage means for storing in the storage unit;
Pulse movement distance information correction means for correcting the pulse movement distance information by learning by statistical processing based on the difference stored in the storage unit by the difference storage means;
A pulse for setting the moving distance per one pulse of the vehicle speed pulse detected by the vehicle speed pulse detecting unit by transmitting the pulse moving distance information corrected by the pulse moving distance information correcting means to the navigation device. Travel distance information setting means;
A navigation server comprising: A pulse movement distance learning method executed in a navigation system in which a navigation server including at least a control unit and a storage unit, and a navigation device including at least a vehicle speed pulse detection unit, a storage unit, and a control unit are communicably connected. Because
The storage unit of the navigation server includes:
Pulse movement distance information storage means for storing pulse movement distance information relating to movement distance per pulse of vehicle speed pulses in a vehicle of the vehicle type in association with vehicle type information relating to the vehicle type of the vehicle;
With
Executed in the control unit of the navigation device;
Vehicle type information transmitting step for transmitting the vehicle type information to the navigation server;
Executed in the control unit of the navigation server,
Vehicle type information receiving step for receiving the vehicle type information transmitted from the navigation device;
Executed in the control unit of the navigation server,
A pulse movement distance information acquisition step for acquiring the pulse movement distance information corresponding to the vehicle type information received in the vehicle type information reception step from the vehicle speed pulse movement distance storage means;
Executed in the control unit of the navigation server,
A pulse moving distance information transmitting step for transmitting the pulse moving distance information acquired in the vehicle speed pulse moving distance acquiring step to the navigation device;
Executed in the control unit of the navigation device;
A pulse moving distance information receiving step for receiving the pulse moving distance information transmitted from the navigation server;
Executed in the control unit of the navigation device;
A pulse for measuring the number of pulses of the vehicle speed pulse detected by the vehicle speed pulse detection unit between any two points and calculating the movement distance per pulse based on the distance between the two points and the number of pulses. A moving distance calculating step;
Executed in the control unit of the navigation device;
The difference between the movement distance per pulse of the pulse movement distance information received in the pulse movement distance reception step and the movement distance per pulse calculated in the pulse movement distance calculation step is calculated. And storing the difference in the storage unit,
Executed in the control unit of the navigation device;
Based on the difference stored in the storage unit in the difference storing step, a pulse moving distance information correcting step for correcting the pulse moving distance information by learning by statistical processing;
A method for learning a pulse moving distance, comprising: A pulse movement distance learning method executed in a navigation device including at least a vehicle speed pulse detection unit, a storage unit, and a control unit, which is communicably connected to a navigation server including at least a storage unit,
The storage unit of the navigation server includes:
Pulse movement distance information storage means for storing pulse movement distance information relating to movement distance per pulse of vehicle speed pulses in a vehicle of the vehicle type in association with vehicle type information relating to the vehicle type of the vehicle;
With
Executed in the control unit,
Vehicle type information transmitting step for transmitting the vehicle type information to the navigation server;
A pulse moving distance information receiving step for receiving the pulse moving distance information corresponding to the vehicle type information transmitted from the navigation server;
A pulse for measuring the number of pulses of the vehicle speed pulse detected by the vehicle speed pulse detection unit between any two points and calculating the movement distance per pulse based on the distance between the two points and the number of pulses. A moving distance calculating step;
The difference between the movement distance per pulse of the pulse movement distance information received in the pulse movement distance reception step and the movement distance per pulse calculated in the pulse movement distance calculation step is calculated. And storing the difference in the storage unit,
Based on the difference stored in the storage unit in the difference storing step, a pulse moving distance information correcting step for correcting the pulse moving distance information by learning by statistical processing;
A method for learning a pulse moving distance, comprising: A pulse movement distance learning method executed in a navigation server having at least a control unit and a storage unit, which is communicably connected to a navigation device having at least a vehicle speed pulse detection unit,
The storage unit
Pulse movement distance information storage means for storing pulse movement distance information relating to movement distance per pulse of vehicle speed pulses in a vehicle of the vehicle type in association with vehicle type information relating to the vehicle type of the vehicle;
With
Executed in the control unit,
Vehicle type information receiving step for receiving the vehicle type information transmitted from the navigation device;
A pulse movement distance information acquisition step for acquiring the pulse movement distance information corresponding to the vehicle type information received in the vehicle type information reception step from the vehicle speed pulse movement distance storage means;
By transmitting the pulse travel distance information acquired in the vehicle speed pulse travel distance acquisition step to the navigation device, the travel speed per pulse based on the pulse travel distance information and the vehicle speed between any two points. The difference between the number of pulses of the vehicle speed pulse detected by the pulse detector and the movement distance per pulse calculated based on the distance between the two points is calculated, and learning per statistical processing is performed to learn the difference per pulse. A pulse moving distance information transmission step for correcting the moving distance;
A method for learning a pulse moving distance, comprising: A pulse movement distance learning method executed in a navigation server having at least a control unit and a storage unit, which is communicably connected to a navigation device having at least a vehicle speed pulse detection unit,
The storage unit
Pulse movement distance information storage means for storing pulse movement distance information relating to movement distance per pulse of vehicle speed pulses in a vehicle of the vehicle type in association with vehicle type information relating to the vehicle type of the vehicle;
With
Executed in the control unit of the navigation server,
Vehicle type information receiving step for receiving the vehicle type information transmitted from the navigation device;
A pulse movement distance information acquisition step for acquiring the pulse movement distance information corresponding to the vehicle type information received in the vehicle type information reception step from the vehicle speed pulse movement distance storage means;
A vehicle speed pulse receiving step for receiving, from the navigation device, the vehicle speed pulse detected by the vehicle speed pulse detector between any two points;
A pulse moving distance calculating step for calculating a moving distance per one pulse based on the number of pulses of the vehicle speed pulse received in the vehicle speed pulse receiving step and the distance between the two points;
The difference between the movement distance per pulse of the pulse movement distance information acquired in the pulse movement distance reception step and the movement distance per pulse calculated in the pulse movement distance calculation step is calculated. Difference storing step to store in the storage unit,
Based on the difference stored in the storage unit in the difference storing step, a pulse moving distance information correcting step for correcting the pulse moving distance information by learning by statistical processing;
By transmitting the pulse moving distance information corrected in the pulse moving distance information correcting step to the navigation device, the moving distance per pulse of the vehicle speed pulse detected by the vehicle speed pulse detecting unit is set. A pulse travel distance information setting step;
A method for learning a pulse moving distance, comprising:

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