JPH10239077A - Navigation system, storage device and automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a navigation system of self-contained navigation or the like requiring individual correction data vehicle by vehicle, easily usable in common between a plurality of vehicles by performing guide processing on the basis of a present position detected on the basis of data supplied from a data storage part that corrects detected data on the moving state of an own vehicle. SOLUTION: A navigation system is composed of a navigation system body 10 and an external unit 20. A GPS antenna 12 is connected to the navigation system body 10, and a signal received by this antenna 12 is received and processed by a GPS signal processing part 13. The GPS signal processing part 13 receives a GPS position measuring signal to obtain present position data and supplies it to a system controller 11. The external unit 20 is provided with a system controller 21, and the system controller 21 supplies the calibrating coefficient value stored in data storage part 25 and data detected by an angular velocity sensor 22 and a vehicle speed sensor 24, to the system controller 11 on the connected navigation system 10 side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation apparatus which is mounted on a moving body such as an automobile, detects its current position, and performs guidance based on the detected position and the like, and is connected to the navigation apparatus. And a vehicle on which a navigation device can be mounted.

[0002]

2. Description of the Related Art Conventionally, various navigation devices have been developed to be mounted on a moving body such as an automobile. This navigation device is, for example, a C in which road map data is stored.
It comprises a large-capacity data storage means such as a DROM, a current position detection means, and a display device for displaying a road map near the detected current position based on data read from the data storage means. In this case, the GPS (Global Positioning Sys
tem) based on a positioning system (hereinafter simply referred to as GPS) using a signal transmitted from a positioning satellite, or based on information such as the traveling direction and traveling speed of the vehicle. There is an autonomous navigation (self-contained navigation) that tracks changes and measures the current position.

[0003] The data of a road map near the current position detected by the current position detecting means is stored in a CD.
A video signal for reading a road map is created by reading from a large-capacity data storage means such as a ROM, and this video signal is supplied to a display device (often using a liquid crystal display panel) to provide a video signal near the current position. This is to display a road map.

[0004]

When the current position is measured by autonomous navigation, it is necessary to perform a correction process suitable for a vehicle equipped with a navigation device. That is, in order to perform positioning by autonomous navigation, information on the traveling speed of the moving body and the angular velocity that is the traveling direction of the moving body is necessary. In this case, for information on the traveling speed,
For example, a speed sensor that counts a vehicle speed pulse signal proportional to the vehicle speed output from a computer for controlling the engine of an automobile is used. In addition, for the information of the angular velocity, a direction sensor composed of an angular velocity detector such as a piezoelectric vibrating gyroscope installed in the navigation device is used,
This angular velocity detector detects the angular velocity when the vehicle changes its traveling direction, and determines the traveling direction from the angular velocity.

Here, the correspondence between the pulse interval of the vehicle speed pulse signal counted by the speed sensor and the vehicle speed differs depending on the type of the vehicle. Therefore, in order to obtain the data of the traveling distance from the result counted by the speed sensor, , A process of multiplying by a coefficient according to the vehicle type is required. Also, even in the case of the same type of vehicle, it may be necessary to multiply by a different coefficient depending on the error of the vehicle speed pulse signal, the state of the tire, and the like.

In the case of a direction sensor such as a piezoelectric vibrating gyroscope, the output sensitivity may change depending on the installation state or the like, and when judging a change in direction from the detected output of angular velocity, the output at that time is determined. Correction processing according to the sensitivity is required.

Therefore, in the case of a navigation device that performs position measurement by autonomous navigation, it is necessary to determine the traveling distance from the output of the speed sensor and to determine the traveling direction from the output of the angular velocity sensor. Correction processing using properly set correction data was required. In the case of a conventional navigation device, correction data necessary for performing this correction process is stored in the navigation device, and as long as the device is continuously mounted on the same vehicle, the correction data is stored. It is kept. In this case, the correction data is generally corrected or updated at any time according to the running state of the vehicle, and is used as accurate correction data for the vehicle over a long period of time. .

If the navigation device is replaced with another vehicle, the data for correction is reset, and a process for obtaining accurate correction data over a long time from the running state of the vehicle is performed. Therefore, it is necessary to store the obtained correction data. If the correction data is not reset, the azimuth and the distance are determined by the correction processing using the correction data for the previously mounted vehicle type, and the wrong position is measured.

As described above, in the case of a navigation device which performs position measurement by autonomous navigation, a device dedicated to each vehicle is required, and for example, it is configured to be compact for portable use and a plurality of devices are provided. It was virtually impossible to share one navigation device in a car.

In view of the foregoing, it is an object of the present invention to enable a navigation device requiring individual correction data for each vehicle, such as autonomous navigation, to be easily shared by a plurality of vehicles.

[0011]

SUMMARY OF THE INVENTION In order to solve such a problem, the present invention provides a first apparatus having a storage unit for storing data for correcting detection data of a moving state of a host vehicle, A configuration including a position detection unit that detects the current position based on data supplied from the first device and a second device that includes a processing unit that performs a guidance process based on the detected position It is.

With this configuration, for example, the first device is installed in each car and the correction data of the car is stored, so that the guidance process as the navigation device is performed. By connecting the second device to the first device prepared on each vehicle side, it is possible to detect an accurately located position and perform an accurate guidance process based on the detected position information. In addition, the navigation device can be shared among a plurality of vehicles.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will now be described with reference to FIG.
This will be described with reference to FIG.

In this embodiment, a navigation device is mounted on a vehicle, which is a moving body, to measure a current position, and the like. FIG. 1 shows the entire configuration. Hereinafter, the configuration will be described with reference to FIG. 1. In this example, an apparatus that performs navigation using the navigation device main body 10 and the external unit 20 is configured. The navigation device body 10 includes a system controller 1 which is a microcomputer that controls a positioning process and a map display process.
1 and each signal processing unit is connected to the system controller 11.

A GPS antenna 12 is connected to the navigation apparatus main body 10, and a signal received by the antenna 12 is received and processed by a GPS signal processing unit 13. In the GPS signal processing unit 13, a GPS (Global Positioni
ng System) for receiving data for the positioning system. As the positioning reception processing, a positioning signal for GPS transmitted from a plurality of positioning artificial satellites is received, data included in the signal is analyzed, and data of a current position (latitude, longitude, altitude) is obtained. Get. This GPS signal processing unit 13
Data of the current position obtained in
To supply.

When the measured position data is supplied to the system controller 11, control is performed to display a road map near the measured current position. That is, when the positioning data of the position is obtained from the GPS signal processing unit 13, the disk control unit 14 is instructed to read a road map near the corresponding position. The disk control unit 14 uses the CDRO
CD ROM mounted on the M driver 15 (here, a map disk on which road map data is recorded) 1
The controller 18 controls reading of the map data from the memory 6, and stores the read map data in the memory 18 connected to the system controller 11.

The road map data stored in the CD ROM (map disk) 16 includes, for example, data on the coordinate positions of the starting point and the ending point of each road, and vector data connecting the starting point and the ending point. In addition, for the auxiliary data necessary for displaying the road map,
It is stored in M16.

When the map data read from the CD ROM 16 is transferred to the memory 18, the system controller 11 performs a process of drawing a predetermined range of a road map in the map data to generate a map display signal. Then, the road map data which is drawn and becomes a predetermined map display signal is supplied to the display 17, and the display 17 displays the road map. As the display 17, for example, a liquid crystal display panel capable of displaying a color image is used. The display 17 may be configured as a device separate from the navigation device body 10 in some cases.

An operation input unit (not shown) of the navigation device is connected to the system controller 11, and a road map based on a mode set based on an operation of the operation input unit is displayed. . For example, a display range, a display scale, a display direction, and the like of the map can be set by a predetermined operation.

When the external unit 20 is connected to the positioning data from the GPS signal processing unit 13, the system controller 11 outputs the detection data of each sensor supplied from the external unit 20. Based on this, positioning of the current position by autonomous navigation is also performed.

Next, the configuration of the external unit 20 will be described. The external unit 20 includes a system controller 21 composed of a microcomputer, and the system controller 11 of the navigation device body 10.
Communicates with In this case, the navigation device body 10
Communication with the external unit 20 is performed by directly connecting physical signal lines to perform communication.
Communication may be performed by wireless transmission using ultrasonic waves or the like.

The external unit 20 includes an angular velocity sensor 22 as an azimuth sensor, and a vehicle speed sensor 24 for counting a vehicle speed pulse output from a computer for controlling the engine of the vehicle and proportional to the vehicle speed.
The output of the analog / digital converter 2
The data is converted into digital data at 3 and supplied to the system controller 21, and the detection output of the vehicle speed sensor 24 is supplied directly to the system controller 21.

A data storage unit 25 is connected to the system controller 21 of the external unit 20.
Under the control of the system controller 21 based on the instruction 1, the data storage unit 25 stores correction data necessary for performing the autonomous navigation calculation. As the data storage unit 25, for example, a storage unit that stores storage data such as a nonvolatile memory is used.

The correction process based on the data stored in the data storage unit 25 is a process of calibrating the output sensitivity of the detection output of each of the sensors 22 and 24. That is, the angular velocity sensor 2
The detection output 2 is a value corresponding to the angular velocity detected in accordance with the change in the traveling direction of the vehicle, but includes the detection output level of the angular velocity sensor 22 (actually, output data of the analog / digital converter 23). A coefficient value that determines the correspondence with the magnitude of the angular velocity determined by the system controller 11 of the navigation device body 10 is stored in the data storage unit 25, and a calibration process of multiplying the detected data by the coefficient value is performed. The data is used to determine the angular velocity during positioning. The detection output of the vehicle speed sensor 24 is a count value of a vehicle speed pulse proportional to the rotation of the axle of the automobile, and a coefficient value for determining the correspondence between the count value determined by the system controller 11 and the speed is stored in the data storage unit. 25, and performs a calibration process of multiplying the detection data by the coefficient value to obtain data for determining the speed (or traveling distance).

The system controller 21 of the external unit 20 converts the calibration coefficient values stored in the data storage unit 25 and the detection data of the sensors 22 and 24 into the system controller of the connected navigation device body 10. 11 The system controller 11 of the main body 10 uses the supplied coefficient value to calculate each sensor 2.
Calibration processing of the detected data of the sensors 2 and 24 is performed, and based on the calibrated detection data of the sensors, a positioning operation is performed by the autonomous navigation for positioning the current position. The positioning calculation in the autonomous navigation is performed with reference to the positioning data supplied from the GPS signal processing unit 13. That is, the GPS signal processing unit 13
Starting from the position where accurate positioning was achieved, positioning is performed by autonomous navigation.For example, when GPS radio waves cannot be received from a satellite while traveling in a tunnel, positioning is performed by GPS last. The accurate positioning of the current position is performed with the starting position as the starting point. Therefore, when the external unit 20 is connected to the navigation device body 10,
The current position can be determined when traveling in any place.

The data storage unit 25 of the external unit 20 of this embodiment can store data other than the calibration data of the sensors 22 and 24 described above.
For example, various data such as positioning position data determined by the system controller 11 of the navigation device body 10 and data of various setting states (data set by a user such as a destination and a route) are transmitted to the external unit 20.
Are sequentially transmitted to the system controller 21 and stored in the data storage unit 25.

The data supplied to the external unit 20 is not limited to the navigation operation, and the data supplied to the external unit 20 is controlled by the system controller 21.
5 is stored. For example, detection data of various sensors included in the vehicle, such as detection data of a sensor for detecting the remaining amount of the fuel tank of the vehicle and detection data of a sensor for detecting the amount of the brake fluid, are stored under the control of the system controller 21. It can be stored in the unit 25.

When the system controller 11 of the main unit 10 needs various data stored in the data storage unit 25, it issues a data read request to the system controller 21 of the external unit 20 and sends the data read request to the main unit 10. Transfer. If the data read and transferred from the data storage unit 25 is stored data related to a navigation operation, it is used when executing a process related to navigation such as a map display. Further, with respect to the stored data of the sensors that are not directly related to the navigation operation, for example, a process of displaying the detection values (remaining fuel amount, etc.) of each sensor on the screen of the display 17 is performed.

Next, the navigation apparatus main body 10 of this embodiment
With reference to the flowchart of FIG. 3, a description will be given of a process for operating the navigation device using the external unit 20 and the external device 20. First, the navigation device body 10
Is connected to the external unit 20 (step 10).
1) When the navigation device body 10 is activated (step 102), the system controller 11 of the navigation device body 10 issues a request to read data stored in the data storage unit 25 of the external unit 20,
The storage data is received (step 103).

At this time, the system controller 11 determines whether the received data is initial data (step 104). Here, when the navigation device main body 10 is connected to the external unit 20 for the first time, initial data is supplied, and a positioning coefficient based on a sensor output is used as a calibration coefficient value when performing positioning calculation in autonomous navigation. Is performed (step 105). Here, it is determined whether or not the calculation process using this initial value has been completed (step 1).
06) When the state is not completed, the external unit 2
Data with an initial value is prepared as transmission data to 0 (step 107).

When it is determined in step 104 that the data of the calibration coefficient value which is not the initial data is supplied from the external unit 20, the data is used as the calibration coefficient value, and the positioning coefficient based on the sensor output is used. Calculation processing is performed (step 108). When the positioning calculation processing is performed, the calibration coefficient values are updated sequentially according to the positioning state at that time, and the updated calibration coefficient values are prepared as transmission data ( Step 109). Also, when the calculation process using the initial value is completed in step 106, the calibration coefficient value calculated at that time is prepared as transmission data.

The transmission data prepared in step 107 or 109 is transmitted from the system controller 11 of the navigation device body 10 to the system controller 21 of the external unit 20 as needed, and is stored in the data storage unit 2.
The updated calibration coefficient value (or initial value) is stored in step 5 (step 110). Then, it is determined whether or not the operation of the navigation device is to be terminated (step 111). If the operation is not to be terminated, the process returns to step 104, and the above-described processing is repeated.

By performing the above-described processing, the navigation unit main body 10 is connected to the external unit 20 connected thereto.
The position calculation is performed by the autonomous navigation based on the sensor output supplied from the external unit 20, and the correction processing of the sensor output at that time is performed using the calibration coefficient value stored in the data storage unit 25 in the external unit 20. The position can be determined by good autonomous navigation. That is, in the data storage unit 25 in the external unit 20, calibration coefficient values necessary for performing positioning calculation by autonomous navigation of the vehicle to which the external unit 20 is mounted are sequentially updated and stored, and the optimum value for the vehicle is stored. The appropriate calibration coefficient value is automatically set.

Therefore, the navigation device body 10 does not need to store the calibration coefficient value corresponding to the vehicle to be mounted, but can perform positioning by appropriate autonomous navigation based on data supplied from the connected external unit 20. For example, even if the navigation apparatus body 10 is shared by a plurality of automobiles, it is possible to perform favorable position measurement and navigation processing such as map display based on the measured position.

FIG. 3 is a diagram showing an example of a state in which the navigation device of the present embodiment is mounted on a car. For example, an external unit 20 is attached to each of three cars 31, 32, and 33.
a, 20b, and 20c are prepared in advance (each external unit 2
0a, 20b, and 20c have the same configuration as the external unit 20 shown in FIG. 1). Then, for example, one small navigation device body 10a for portable use is prepared, and if necessary, the navigation device body 10a is mounted on one of the cars 31 to 33, and an external unit prepared for the car is prepared. Connect to 20a, 20b or 20c. By doing so, the navigation device body 1
0a, the positioning calculation using the calibration coefficient value stored in the data storage unit 25 of the connected external unit is performed,
Accurate positioning of the current position by autonomous navigation can be performed while the sensor output is always calibrated by a coefficient value suitable for the vehicle, and the navigation device can be shared by a plurality of vehicles.

Also, as shown in FIG. 3, for example, a navigation device main body 10b (this device 10b is configured to have more functions than the device 10a, for example) is prepared separately from the navigation device main body 10a. By selectively connecting the main bodies 10a and 10b to an external unit,
It is also possible to selectively connect a plurality of types of navigation devices to one vehicle, and it is possible to freely select a navigation device.

In this embodiment, in addition to the calibration coefficient value of the detection output of the sensor required for performing positioning by autonomous navigation, data of the positioning position and various settings set by the user, such as the destination and the route. For state data, etc.,
Since the data is stored in the data storage unit 25 in the external unit 20, even when the navigation device body is shared with another vehicle, for example, these setting data are used as exclusive data for each vehicle. In addition, when one navigation device is shared by a plurality of vehicles, a malfunction in which data set by another vehicle is erroneously used can be prevented.

Further, the detection data of various sensors provided in the automobile, which are not directly related to the navigation operation, are also stored in the data storage section 25 in the external unit 20, so that the external unit 20 is installed. There is an effect that the management of the state of each part of the car can be performed by the navigation device connected to the external unit 20.

In the above embodiment, the display 17 has been described as being integrated with the navigation device main body 10. However, a configuration in which a separate display device is connected to the navigation device main body may be adopted.
That is, as shown in FIG. 4, for example, a navigation device body 10 'having no display unit (the navigation device body 10' has the same configuration as the navigation device body 10 except that it does not have a display) is constituted by a liquid crystal display panel or the like. The display unit 40 may be connected to function as a navigation device, and the external unit 20 may be connected to the navigation device main body 10 ′ to store calibration coefficients and the like in the external unit 20.

In the above-described embodiment, the external unit 20 only stores correction data such as calibration coefficients transmitted from the navigation apparatus main body, and the stored data is processed on the navigation apparatus main body. However, the system controller 2 in the external unit 20
In step 1, the detection output of the angular velocity sensor 22 or the vehicle speed sensor 24 is subjected to a correction process using the calibration coefficient stored in the data storage unit 25, and the detected data of the calibrated sensor is transmitted to the navigation device body 10. You may do it. This eliminates the need for a sensor output correction process on the navigation device body.

In the above-described embodiment, the sensors 22 and 24 for performing positioning by autonomous navigation are provided in the external unit 20. For example, as shown in FIG. By connecting the autonomous navigation unit 60 composed of
While configuring so that positioning by autonomous navigation is possible,
An external unit 50 is provided separately from the autonomous navigation unit 60, and a system controller 51 and a data storage unit 52 are provided in the external unit 50. Then, by transmitting the data stored in the data storage unit 52 to the navigation device main body 10 ″ under the control of the system controller 51, the same processing as the navigation device described in the above embodiment can be performed.

In the above embodiment, correction data such as calibration coefficients are directly stored as data to be stored in the external unit. Data is stored, and a unique code corresponding to the type (vehicle type, tire size, etc.) of the vehicle in which the external unit is mounted is stored in a data storage unit in the external unit. The appropriate data may be selected from the stored plurality of types of correction data based on the code data read in step (1), and the correction processing may be performed using the selected data. With this configuration, the configuration of the external unit can be simplified.

[0043]

According to the navigation device of the present invention,
For example, by installing the first device in each car and storing the correction data of the car, a second device that performs a guidance process as a navigation device is prepared in each car. By connecting to the first device, it is possible to detect an accurately located position and perform accurate guidance processing based on the detected position information. The second device) can be shared.

In this case, the data stored in the data storage unit of the first device is a parameter for calibrating the detection output of the sensor used for detecting the position of the own vehicle.
Using the parameter value, the detection output of the sensor can be calibrated to an accurate value for position detection, and accurate navigation can be performed.

Further, when the calibration parameters are stored, the parameters stored in the data storage unit are used.
Since the first device includes a calibration operation unit for calibrating the detection output of the direction sensor and the detection output of the distance sensor, the detection output of the direction sensor and the detection output of the distance sensor are calibrated on the first device side, and the first device is calibrated. Since the data is supplied to the second device, the data supplied to the second device can be used without any correction, and the second device can be completely shared.

Further, in the case of the above-described navigation device, the data stored in the data storage unit of the first device is a unique code corresponding to the type of the mounted vehicle, and the data is stored in the position detection unit of the second device. Since the calibration processing corresponding to the code supplied from the first device is performed, the first device only needs to store the code data and can be realized with a simple configuration.

Further, in the case of the navigation device described above, the data storage unit stores data other than the data for correction supplied from the second device as a first device.
By providing a control unit for controlling the storage of the stored data and the communication with the first device, it becomes possible to simultaneously store various data required by the navigation device in the second device, and to store the data. Good navigation using data will be performed.

According to the storage device of the present invention, the data used to correct the detection data of the moving state of the moving body on which the device is mounted for positioning calculation is stored,
By connecting a navigation device etc. to this storage device,
Accurate positioning calculation can be performed.

In this case, the data to be stored are parameters for calibrating the detection output of the sensor used for detecting the position of the own vehicle, so that the detection output of the sensor is correctly calibrated and the navigation device connected to the navigation device is connected. And accurate positioning calculation can be performed.

When the parameters are stored, a calibration operation unit for calibrating the detection output of the azimuth sensor and the detection output of the distance sensor based on the parameters stored in the data storage unit is provided. On the navigation device side, the positioning calculation can be performed without calibrating the detection data of the sensor.

Further, in the case of the above-mentioned storage device, the data stored in the data storage unit is a unique code corresponding to the type of the installed vehicle, so that the connection can be made by simply storing the code data. An accurate positioning calculation can be performed on the navigation device side.

Further, in the case of the storage device described above, since data other than correction data supplied from the outside is stored in the data storage unit, it can be used as various data storage devices in a car. Can be effectively utilized.

Further, according to the automobile of the present invention, since the data storage section for storing data used for correcting the detection data of the moving state of the own vehicle for the positioning calculation in the navigation device is provided, this automobile is provided. When a navigation device is connected to the navigation device, positioning calculation by autonomous navigation or the like can be accurately performed by the connected navigation device.

In the case of this automobile, the data stored in the data storage unit is a parameter for calibrating the detection output of the direction sensor or the distance sensor, so that the autonomous navigation based on the detection output of the direction sensor or the distance sensor is performed. Can be accurately performed by the navigation device mounted on the vehicle.

Further, when these parameters are stored, a calibration operation unit for calibrating the detection output of the azimuth sensor and the detection output of the distance sensor based on the stored parameters is provided. Accurate positioning by autonomous navigation can be performed without performing calculations.

In the case of the above-mentioned vehicle, the data stored in the data storage unit is a unique code corresponding to the type of the mounted vehicle, so that the connected navigation device can determine this code. Accordingly, a corresponding correction process can be performed, and an accurate positioning process corresponding to an automobile type (vehicle type) can be performed on the connected navigation device.

In the case of the above-described automobile, the data storage unit stores the detection data of the sensor provided in the automobile, which is not related to the positioning calculation, so that, for example, the remaining amount of fuel, the amount of various liquids, etc. Can be managed via this storage device.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an apparatus to which an embodiment of the present invention is applied.

FIG. 2 is a flowchart illustrating processing during operation according to an embodiment.

FIG. 3 is an explanatory diagram showing a connection example of the device of one embodiment.

FIG. 4 is a block diagram showing a configuration of another embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of still another embodiment of the present invention.

[Explanation of symbols]

10, 10a, 10b Navigation device body, 11
System controller, 13 GPS signal processing unit, 1
4 disk control unit, 15 CD ROM driver, 1
6 CD ROM (map disk), 17 display device, 18 memory, 20, 20a, 20b, 20c
External unit, 21 system controller, 22 angular velocity sensor, 23 analog / digital converter, 24
Vehicle speed sensor, 25 data storage unit, 31, 32, 33
Car

Continued on the front page (51) Int.Cl. ⁶ Identification code FI G09B 29/10 G09B 29/10 A

Claims (15)

[Claims] 1. A first device having a storage unit for storing data for correcting detection data of a moving state of a vehicle, and a current position is detected based on data supplied from the first device. A navigation device, comprising: a second device including a position detection unit that performs a guidance process based on the detected position. 2. The navigation device according to claim 1, wherein the data stored in the data storage unit of the first device is a parameter used for calibrating a detection output of a sensor used for detecting a position of the own vehicle. apparatus. 3. The navigation device according to claim 2, further comprising: a calibration operation unit configured to calibrate a detection output of the direction sensor and a detection output of the distance sensor based on the parameters stored in the data storage unit. 4. The navigation device according to claim 1, wherein the data stored in the data storage unit of the first device is a unique code corresponding to a type of a mounted vehicle, and a position of the second device. A navigation device, wherein the detection unit performs a calibration process corresponding to the code supplied from the first device. 5. The navigation device according to claim 1, wherein, as the first device, data other than for correction supplied from the second device is stored in the data storage unit. A navigation device comprising a control unit for controlling holding and communication with the first device. 6. A data storage unit for storing data used for correcting detection data of a moving state of a moving body on which the device is mounted for positioning calculation, and data stored in the data storage unit. A storage unit comprising: a control unit that supplies the detection data corrected based on the data to a positioning calculation device. 7. The storage device according to claim 6, wherein the data stored in the data storage unit is a parameter for calibrating a detection output of a sensor used for detecting a position of the vehicle. 8. The storage device according to claim 7, further comprising: a calibration operation unit configured to calibrate a detection output of the direction sensor and a detection output of the distance sensor based on the parameters stored in the data storage unit. 9. The storage device according to claim 6, wherein the data stored in the data storage unit is a unique code corresponding to a type of a mounted vehicle. 10. The storage device according to claim 6, wherein, under the control of the control unit, data other than for correction supplied from the outside is stored in the data storage unit. 11. An automobile to which a navigation device can be mounted, the automobile having a data storage unit for storing data used for correcting detection data of a moving state of the own vehicle for positioning calculation in the navigation device. . 12. The vehicle according to claim 11, wherein the data stored in the data storage unit is a parameter for calibrating a detection output of a direction sensor or a distance sensor. 13. The vehicle according to claim 12, further comprising a calibration operation unit configured to calibrate a detection output of the direction sensor and a detection output of the distance sensor based on the parameters stored in the data storage unit. 14. The vehicle according to claim 11, wherein the data stored in the data storage unit is a unique code corresponding to the type of the mounted vehicle. 15. The vehicle according to claim 11, wherein the data storage unit stores detection data of a sensor included in the vehicle, which is not related to the positioning calculation.