JP2000311297A - Portable information processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the time until a map responding to a request is displayed after the request on positioning measurement is generated by starting the measurement with a measuring device and starting a call by means of communication equipment in parallel. SOLUTION: When a request on positioning measurement is generated, a control part 28 starts the supply of power to a GPS card 14 from a power source part 30 and gives a command to execute a call procedure for connection with a center corresponding to the request to a communication interface 20 and communication equipment 16. When the input of measurement result data or raw data is received from the GPS card 14, the control part 28 interrupts the supply of power to the GPS card 14 and transmits measurement result data or raw data by using communication equipment 16. After a necessary response is received from the center by using communication equipment 16, the control part 28 performs control of the screen of a display part 22 on the basis of information inputted from the GPS card 14 and information received from the center with communication equipment 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control method in a portable information processing apparatus, various methods to which the control method is applied, a portable information processing apparatus for executing these methods, and the portable information processing apparatus. And a mobile service system including: In the present application, a portable information terminal (Persona
l Digital Assistants) That is, the term portable information processing device is used to mean all types of portable information devices including PDAs and so-called mobile personal computers.

[0002]

2. Description of the Related Art GPS (Global Positioning System) is a type of positioning system, and is mounted on ground control equipment, a predetermined number of GPS satellites in orbit around the earth, vehicles mounted on the ground, or a number carried by humans. GPS receiver,
It consists of three parts. The GPS receiver is
A signal is received from a GPS satellite, and the G
Deriving data (hereinafter, "raw data") such as the distance to the PS satellite (which is called a pseudorange because of including errors) and generating data such as the current position, time, and moving speed, that is, positioning result data, based on the derived raw data. To perform positioning. By performing positioning using a GPS receiver at a location whose position is precisely known, it is possible to detect positioning errors due to the influence of the ionosphere on the pseudorange, position, etc., so that it can be obtained with a moving GPS receiver. The raw data or the positioning result data can be corrected based on the positioning error detection result. The system that performs this kind of correction is DGPS
(Differential GPS). In the present application, positioning result data that has already been subjected to this type of correction at the stage of processing raw data or at the stage after the generation of positioning result data is referred to as corrected data.

[0003] On the other hand, map databases for personal computers and car navigation devices are also provided on media such as CDROM and DVDROM. GPS
Receivers are used in conjunction with such a map database in various devices such as a car navigation device. For example, the map displayed by the car navigation device is switched according to the current location obtained by the GPS receiver. In addition, the current position obtained by the GPS receiver is marked and superimposed on the map displayed by the car navigation device. In addition, the present location obtained by the GPS receiver may be compared with the location of a destination, a famous place, a scenic spot, a famous building, or the like, and when both approaches a predetermined degree, the vehicle occupant may be notified of the approach. Such processing, that is, map navigation and related processing, is useful in providing the information needed by a person who needs the information at an appropriate timing, for example, in preventing a situation in which the user gets lost. Processing.

Further, the size of the GPS receiver has been reduced. For example, conventionally, PCMCIA (Per
sonal Computer Memory Card International Associati
on) A card-shaped GPS receiver conforming to the standard
Sold. Mobile personal computers and notebook personal computers are often provided with a card slot conforming to the PCMCIA standard, and this card-like GPS receiver or GPS card is used by mobile personal computer and notebook personal computer users to use GPS. It is a useful device. Further, the GPS receiver needs to be used by connecting to a GPS antenna arranged so as to be able to receive signals from GPS satellites. Therefore, the conventional GPS card is placed on a card-shaped portion inserted into a card slot and mounted on a roof of a vehicle (in the case of a vehicle) or a shoulder of a user (in the case where a person who is outdoors is carrying the device). GPS antenna and an antenna cable for connecting the two.

[0005] A PDA has been conventionally known as a portable information processing device which is smaller than a mobile personal computer or a notebook personal computer. The PDA generally has a size that can be held by a human and has a configuration in which a display unit such as a liquid crystal is provided on the front surface thereof. The user usually operates a small number of buttons, keys, dials, and the like provided around the display unit or operates a touch panel integrated with the display unit to input / output the data to the PDA. Make a command. Further, the PDA can be provided with a connector for connecting a mobile phone, a PHS, or the like, and a card slot for inserting and mounting a card-shaped medium or device such as a compact flash (CF). The PDA needs to be small and compact, and has a large-capacity storage device (CDR) inside.
Although an OM drive or the like cannot be built in, if these connectors and card slots are effectively used, a relatively large amount of information can be handled temporarily or apparently. For example, only necessary information may be downloaded to the PDA when necessary using a mobile phone, PHS, or the like.

[0006]

With these technical means in the background, connection of a GPS receiver to a PDA to perform map navigation is beginning to be viewed. For example, it is assumed that a GPS card suitable for a PDA card slot has been developed. By inserting this GPS card into the card slot of the PDA, positioning result data or raw data could be taken into the PDA. The map information required for map navigation is P
It may be downloaded from a device or facility that provides map information (hereinafter, “center”) using a communication device such as a mobile phone or a PHS connected to the DA connector.

Here, the PDA (and a portable information processing device similar to the PDA) have, in addition to the limitation in terms of storage capacity,
Restrictions such as power supply life and battery charging frequency are imposed. That is, since the PDA and the GPS card which is to be inserted and mounted in the PDA are also portable devices, the power supply provided therein must be based on a storage element such as a battery or a capacitor. In order to achieve the task of reducing the consumption of electric charge and power stored in the storage element and operating the storage element for as long a time as possible without charging / replacement, only when positioning is performed It is effective to supply power to the GPS card. In particular, GPS
When the storage device is not provided inside the card,
When the power storage element provided in the PS card is configured to be charged with electric power from the PDA, the power supply of the PDA is used to operate the GPS card. Therefore, the GPS card is used only when positioning is performed. The effect of preventing the consumption of the battery with a built-in PDA by the method of supplying power to the battery becomes more remarkable.

[0008] The technique of supplying power to the GPS card only when positioning is performed, however, requires the PD
There is a problem in that a request for positioning is generated at A, and the time from the start of power supply to the GPS card to the acquisition of positioning result data or the like becomes long in response to the request.
According to the study results of the inventor, a time of about 20 to 30 seconds is required even when a backup storage element is provided in the GPS card. Taking into account that it takes time to download map information via the communication device, a request for positioning is generated by an application program of the PDA or an operation of a user, and then a map and a current location are displayed on the screen of the PDA. It may take a few minutes before is displayed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it has been made possible to reduce the time required from the occurrence of a request for positioning to the display of a map in response to the request. One of the purposes is to shorten the time. The present invention further achieves the above-described object by a method of starting power supply at the time of positioning, whereby a PDA (or a similar portable information processing device) or a GPS card (or a similar positioning device) can be used. Another object of the present invention is to suppress power consumption of a power supply and thereby maintain at least the charging frequency of a battery or the like and the life of the battery or the like.

[0010]

In order to achieve the above object, a control method according to the present invention comprises the following steps: (1) A positioning device and a communication device connected to a portable information processing device are connected to the portable information processing device. A control method controlled by a circuit or software inside the device, wherein (2) when a request is generated,
It is characterized in that positioning is started by the positioning device and calling by the communication device is started in parallel with the positioning so that the positioning and the calling are performed simultaneously and in parallel. That is, in the present invention, the communication device executes the calling procedure in parallel with the positioning. For this reason, even if a required time that cannot be ignored is required after a request is generated until a positioning result (positioning result data or raw data as a basis for deriving the positioning result) is obtained, at least a part of the required time is required. Is also used by the communication device to perform the calling procedure,
The time from when a request for positioning is generated to when a map display or the like is performed in response to the request is shortened.
Further, the control method according to the present invention is characterized in that when starting positioning by the positioning device, a circuit in the positioning device is first supplied by power supply from a power supply unit in the portable information processing device or power supply from a power supply unit in the positioning device. Even under the method of starting power supply to the power supply, it can be executed without impairing the effect of time reduction. Therefore, it is possible to maintain at least the charging frequency of the battery and the like and the life of the battery and the like in the portable information processing device and the positioning device.

The control method according to the present invention can be applied or applied to processes such as differential positioning represented by DGPS, display of map information, and display of service information.

First, by executing the control method according to the present invention, positioning result data or raw data can be obtained from the positioning device, and at the same time, connection with the center by the communication device can be established. The positioning result data referred to here is data indicating a positioning result such as a current position, and the raw data is data serving as a basis for deriving positioning result data such as a pseudo distance. Since the center has a function of selecting error data of a corresponding area from positioning result data or raw data and a function of generating corrected data, that is, data of a current position or the like in which a positioning error has been corrected based on the error data. If so, transmit the positioning result data or raw data obtained from the positioning device to the center via the connection with the center by the communication device, receive error data or corrected data from the center, receive from the center or receive The created corrected data can be provided to the user. That is, the positioning accuracy can be improved by executing the differential positioning, and the corrected data having the high positioning accuracy can be obtained in a short time.

Next, if the center has a database for associating the positioning result data with the map information or has an environment capable of accessing such a database, the positioning result data obtained from the positioning device is obtained. Can be transmitted to the center via the connection with the center by the communication device, and the map information linked to the positioning result data can be received from the center and provided to the user in the form of a map display. That is, based on the positioning result data taken from the positioning device and the map information received from the center,
Geographical or urban conditions around the portable information processing device and the behavior (position, movement, miracle, etc.) of the portable information processing device can be displayed on the screen of the display unit of the portable information processing device. As a result, map navigation can be performed and the portable information processing apparatus can be started in a short time even though the storage capacity is small. In particular, by combining this with the differential positioning, a map navigation with higher precision can be performed. That is, if the positioning result data or the raw data is transmitted to the center and the error data or the corrected data and the map information linked thereto are received from the center, the current position or the like at the time of the map display in the portable information processing device is obtained. And the selection of a map at the center becomes more accurate and accurate. In addition, as a form of display for map navigation, the geography or city situation around the portable information processing device, the behavior of the portable information processing device, and characters or symbols indicating the contents of the positioning result data or the corrected data, There are a form of displaying together and a form of superimposing.

Further, if the center has a function of providing service information linked to the positioning result data or the corrected data, the center may provide the positioning result data or the corrected data from the center together with or instead of the map information. The service information linked to the data is received, and based on the service information, the user can be provided with information on the status of the service around the portable information processing device. If you receive both map information and service information,
Based on the positioning result data or the corrected data from the positioning device or the center, information on the status of the service around the portable information processing device can be displayed on the screen of the display unit in a form such as a map display. As in the case of the map navigation, the form of this map display is also the same as the case of the map navigation, such as the geographical or urban situation around the portable information processing device, the status of the service, the behavior of the portable information processing device, positioning result data or corrected data, and service information. There are a form in which a character or a symbol indicating the content of the item is displayed together and a form in which it is superimposed.

Further, the present invention relates to a portable information processing device usable in connection with a positioning device and a communication device, and also provides a mobile service having functions such as differential positioning, map navigation, and service information provision. It can be grasped and expressed as a system. The portable information processing device according to the present invention is a display unit, a connection unit for a positioning device and a communication device, a positioning device, a control unit that executes the method according to the present invention in cooperation with the communication device and the display unit, It is characterized by having. More specifically, in the portable information processing device according to the present invention, the connection means includes a card slot or a connector conforming to a predetermined standard, and is connectable to a device that can be inserted and mounted in the card slot or the connector. It is characterized by being used together with a positioning device and a communication device which are devices. Further, a mobile service system according to the present invention includes a portable information processing apparatus according to the present invention, a mobile station including a positioning device and a communication device connected to the portable information processing apparatus, the center, and the center. A wireless or wired medium for connecting to a mobile station,
It is characterized by having.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a configuration of a mobile station 10 according to one embodiment of the present invention. The mobile station 10 transmits the G
In this configuration, the PS card 14 and the communication device 16 are connected or mounted, and the PDA 12 includes a card interface 18 for connection to the GPS card 14 and a communication interface 20 for connection to the communication device. The card interface 18 is an interface compatible with the PCMCIA standard or compatible with the compact flash.
The communication interface 20 is a modem or other device. Although the communication device 16 is illustrated as a wireless communication device in this figure, it may be a wired communication device. That is, not only a mobile phone, a PHS, or the like can be used as the communication device 16, but also, for example, a PDA 1
A public telephone or the like having a port that can be used for connection with the communication device 2 can also be used as the communication device 16.

The PDA 12 is further provided with a display section 22 composed of a liquid crystal or the like, an operation section 24 implemented by buttons, dials, a touch panel, and the like, a storage section 26 composed of a ROM and a RAM, and the like. . The control unit 28
Based on an input / command given by the user by operating the operation unit 24 or an input from the GPS card 14 or the communication device 16 and using the storage space provided by the storage unit 26, Control of screen display and GPS card 14
And the operation of the communication device 16.

The power supply unit 30 is an element or a circuit for supplying power to a circuit inside the PDA 12, and usually uses a battery to maintain portability. A power supply unit independent of the power supply unit 30 of the PDA 12 may be provided inside the GPS card 14 and the communication device 16.
Power may be supplied to the inside of the PS card 14 and the communication device 16. When a mobile phone or the like is used as the communication device 16, it may be used for a voice call or the like in a state separated from the PDA 12. Therefore, a battery is independently mounted in the communication device 16. On the other hand, the GPS card 14 is presumed to be used by attaching it to the PDA 12 or a similar device. Therefore, when positioning is required (or when a backup battery or capacitor needs to be charged). When power is supplied from the power supply unit 30 of the PDA 12, compared to a case where a battery is separately mounted inside the GPS card 14 and power control is performed independently, power consumption can be suppressed and the battery lasts longer. it can. In this case as well, it is desirable to provide a backup battery or capacitor in the GPS card 14.

FIG. 2 shows a part of the operation procedure of the control unit 28 that is executed when a request related to positioning is generated. The “request related to positioning” here is a request for measuring and displaying the current location, displaying the current location together with a map, providing information on services available near the current location, and the like. This request is given by the user from the operation unit 24 or issued from software running on the control unit 28.

When a request related to positioning occurs (10
0), the control unit 28 sends the GPS card 14
At the same time as starting power supply to the communication interface 20 and the communication device 16 to execute a calling procedure for connection with the center corresponding to this request (10
2). When the GPS card 14 receives the power supply, the GPS card 14 starts the positioning operation.
The positioning operation in the card 14 and the execution of the calling procedure by the communication device 16 start to proceed at the same time.

When receiving positioning result data or raw data from the GPS card 14 (104), the control unit 28
The power supply to the GPS card 14 is cut off, and the positioning result data or the raw data is transmitted to the center to which the connection has been established through the execution of the calling procedure by the communication device 16 using the communication device 16 (106). . Communication device 1
After receiving the required response from the center using (6)
8), the control unit 28 disconnects the connection with the center via the communication device 16 according to a command to the communication interface 20 (110). The control unit 28 controls the screen display of the display unit 22 based on the information input from the GPS card 14 and the information received from the center by the communication device 16 (112).

FIG. 3 shows the relationship between the positioning operation of the GPS card 14 and the execution period of the operation of the communication device. As shown in this figure, in this embodiment, since the power supply to the GPS card 14 and the calling by the communication device 16 are simultaneously started in step 102, a period T1 (for example, 20 to 30 seconds) and a period T2 (for example, about 20 seconds) necessary to execute the calling procedure at least partially overlap, and time is effectively used. As a result, the time spent in (112) from when the request is generated until the (100) information is displayed becomes shorter than the procedure for making a call after positioning. After the positioning operation is performed,
Since the power supply to the S card 14 is automatically cut off, the power consumption by the GPS card 14 is small, so that the power supply unit 30, for example, the battery can be used for a long time without charging or replacement. become.

The procedure described above, ie, GPS by the control unit 28
The control procedure of the card 14 and the communication device 16 can be applied to acquisition and processing of various information that can be received from the center.
For example, when the center is a DGPS reference station or an information center in which information (error data) from the DGPS reference station is aggregated, positioning result data (current position, time, moving speed, etc.) input from the GPS card 14 or a basis for deriving the data. The raw data (the pseudo distance to the GPS satellite, the satellite number for specifying the source of the received satellite signal, etc.)
It is possible to send to the center at, perform DGPS correction processing based on a well-known principle at the center, and receive the resulting correction error data at step 108 (see FIG. 4A). . Ask the center to send the error data of the corresponding area instead of the corrected data,
DGP may be performed by the control unit 28 or the like using the error data. If the center is an information center that provides map information and service information, the positioning result data input from the GPS card 14 is sent to the center in step 106, and the center is searched for a database. It is possible to receive the obtained map information and service information in step 108 (see FIGS. 4B and 4C).

Further, a procedure combining these can be executed (see FIGS. 4D to 4G). The procedure shown in FIGS. 4D and 4E is different from the procedure shown in FIG.
The center combines the procedure shown in (b) or (c), and the center searches the database based on the corrected data obtained as a result of the DGPS correction processing or according to the area corresponding to the error data. Get maps or service information. The procedure shown in FIG. 4F is a combination of the procedure shown in FIG. 4B and the procedure shown in FIG. 4C. In the center, the positioning result data from the mobile station 10 is used. Based on the database search, maps and service information are obtained. Then, the procedure shown in FIG.
This is a combination of the procedure shown in FIG. 4 (a) and the procedure shown in FIG. 4 (f). In the center, the area based on the corrected data obtained as a result of the DGPS correction processing or the area corresponding to the error data And obtains map and service information by searching the database.

The procedure (a) of the procedure illustrated in FIG. 4, that is, the procedure of DGPS is executed under the system configuration shown in FIG. The system shown in this figure includes a mobile station 10, a center 32, and a reference station 34. Each of the reference stations 34 receives a signal from a GPS satellite at a known position, and obtains error data, ie, D
The GPS correction data is created, and the GPS correction data is collected in the center 32. The reference station 34 has different areas A, B,.
It is geographically dispersed to cover Z.

As shown in FIG. 6, when the center 32 receives a command accompanying positioning result data or raw data from the mobile station 10 (200), the center 32 adds the current position latitude / longitude information included in the received positioning result data. Or the latitude of the current location calculated based on the received raw data (202).
Based on the longitude information, the source mobile station 10 determines which reference station 3
Then, it is determined whether or not the area is located in the area 4 (204).
On the side that transmits the corrected data, the center 32 determines the DGP collected from each reference station 34 based on the result of this determination.
From the S correction data group 206, the DGPS correction data related to the reference station 34 to be used in the mobile station 10 of the transmission source is selected, and the above-described positioning result data is subjected to the DGPS correction processing based on the selected DGPS correction data (208). ). The center 32 transmits the corrected data obtained as a result to the mobile station 1.
Reply to 0 (210). Note that the error data may be transmitted as described above.

As described above, the positioning result data or raw data is transmitted from the mobile station 10, the DGPS correction processing is performed in the center 32, and the corrected data or DGPS obtained as a result.
By returning the error data used for the correction processing to the mobile station 10, the positioning error can be reduced as compared with the case where this is not performed. For example, if it is assumed that the raw data or the positioning result data before correction includes a positioning error of 100 m, the positioning error in the corrected data is about 10 m. Further, since the reference station 34 is selected according to the location of the mobile station 10, the positioning error of about 10 m can be further improved by about 2 to 3 m. That is, a certain reference station 34
Mobile station 1 located at a distance of, for example, 100 km or more from
For 0, the use of the DGPS correction data obtained by the reference station 34 reduces the effect of the positioning error reduction by the DGPS correction processing. Therefore, in FIGS. 5 and 6, the reference station 34 based on the current location of the mobile station 10 is used. And the effect of reducing the positioning error by the DGPS correction process is maintained at a relatively high level. Furthermore, if the raw data is transmitted to the center 32 instead of the positioning result data,
Some functions of the GPS card 14 can be partially omitted.

In FIG. 5, the mobile station 10 is connected to the center 32.
However, in practice, a part of the connection between the mobile station 10 and the center 32 is usually made through various switching networks or wired parts. This is the same in FIG. 7 described below.

The procedure (f) of the procedure illustrated in FIG. 4, that is, the procedure for providing map information and service information, is executed under the system configuration shown in FIG. The system shown in this figure includes a mobile station 10 and a center 32.
The request for service information from the mobile station 10 is generated, for example, when the user selects one of the menus displayed on the display unit 22 using the operation unit 24.
This menu includes items such as, for example, accidents, illnesses, restaurants, nearest stations, tourist information, lost children, and transportation. The control unit 28 transmits the command associated with any of the items of this menu and the positioning result data from the GPS card 14 in step 106 described above.

As shown in FIG. 8, when the center 32 receives a command accompanied with positioning result data from the mobile station 10 (300), the center 32 refers to the table 302 with the received command to provide the requested service. The data type of the information is determined (304). The center 32, based on the current location information included in the received positioning result data,
It is determined in which area the transmitting mobile station 10 is located, that is, which area requires a map, and based on the result, the map database 306 is referred to to obtain the required map information. Extract (308). The map database 306 includes, in addition to the map information, a table 310 for associating the area with the map information. The extraction of the map information is performed based on the result of the determination regarding the area.
, And corresponding map information is cut out from the map database 306 based on the result.

The center 32 further refers to the service information database 312 based on the data type obtained in the determination in step 304 and the area specified in the determination in step 308, and determines that the request matches the request from the mobile station 10. The service information to be provided is extracted from the service information database 312 (314). More specifically, the service information database 312 has a table 316 that associates areas, data types, and service information,
By referring to the table 316, service information is extracted. The center 32 returns the resulting map information and service information to the mobile station 10 (3
18).

As described above, by transmitting the positioning result data from the mobile station 10, searching the database at the center 32, and returning the result to the mobile station 10, the user can determine which database on the center 32 side Even if the user does not know whether the configuration is such, it is possible to receive provision of information constituting the database. Step 208
Steps 304 to 3 based on the corrected data obtained in
18, the procedure shown in FIG. 6 and the procedure shown in FIG. 8 can be combined. In this case, more accurate service information and map information are transmitted to the mobile station 1.
0 can be received.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a mobile station according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating an operation procedure of a control unit.

FIG. 3 is a time chart showing the timing of turning on the power to the GPS card and making a call in the communication device.

4A and 4B are time charts showing a communication procedure between a mobile station and a center, wherein FIG. 4A shows a communication procedure at the time of DGPS execution, FIG. 4B shows a communication procedure at the time of providing map information, and FIG. (D) is (a) and (b), (e) is (a) and (c), (f) is (b) and (c), and (g) is (a) and (f). It is a figure which shows the communication procedure concerning the combination of.

FIG. 5 is a block diagram illustrating an example of a system configuration.

FIG. 6 is a flowchart illustrating an example of an operation procedure of a center.

FIG. 7 is a block diagram illustrating an example of a system configuration.

FIG. 8 is a flowchart illustrating an example of an operation procedure of the center.

[Explanation of symbols]

10 mobile stations, 12 PDA, 14 GPS card, 1
6 communication device, 18 card interface, 20 communication interface, 22 display unit, 24 operation unit, 28
Control unit, 30 power supply unit, 32 center, 34 reference stations.

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 5H180 AA01 AA21 BB05 BB08 CC12 FF05 FF13 FF22 FF32 FF38 5J062 AA05 BB01 BB05 CC07 EE04 HH05 5K067 AA14 AA43 BB36 DD23 EE02 EE10 EE16 FF03H05 GG23 GG01

Claims (12)

[Claims] In a control method for controlling a positioning device and a communication device connected to a portable information processing device by a circuit or software inside the portable information processing device, when a request occurs, positioning and calling are performed. A control method characterized by starting positioning by a positioning device and starting a call by a communication device in parallel with the positioning so that are executed simultaneously and in parallel. 2. The control method according to claim 1, wherein when starting positioning by the positioning device, first, power is supplied from a power supply unit in the portable information processing device or power is supplied from a power supply unit in the positioning device. A control method characterized by starting power supply to a circuit in a positioning device. 3. A portable information processing device executes the control method according to claim 1 or 2 so that when a request is generated, a portable information processing device can receive a signal from a positioning device and communicate with a center via a communication device. Via the connection by the portable information processing device, transmits the positioning result data taken from the positioning device or the raw data as a basis for deriving the positioning result data to the center, and selects the corresponding one selected by the center based on the positioning result data or the raw data. The center receives error data of the area to be corrected or corrected data obtained by correcting correction of the positioning error based on the error data from the center, and the portable information processing device performs the correction based on the error data received from the center and the data acquired from the positioning device. Providing a user with the generated corrected data or the corrected data received from the center. I shall positioning method. 4. A portable information processing apparatus executes a control method according to claim 1 or 2 so that when a request is generated, a portable information processing apparatus executes a control method according to claim 1 or 2 so that a signal can be taken from a positioning apparatus and can communicate with a center via a communication apparatus. The portable information processing device transmits the positioning result data fetched from the positioning device to the center via the connection according to the above, receives the map information linked to the positioning result data from the center, and receives the received positioning result data and A map navigation method, wherein the portable information processing device displays, on the screen of a display unit, the geographical or urban situation around the portable information processing device and the behavior of the portable information processing device based on the map information. 5. A portable information processing apparatus executes a control method according to claim 1 or 2 so that when a request is generated, a portable information processing apparatus executes a control method according to claim 1 or 2 so that a signal can be taken from a positioning apparatus and can communicate with a center via a communication apparatus. Via the connection by the portable information processing device, transmits the positioning result data captured from the positioning device or the raw data captured as a basis for deriving the positioning result data to the center, and the center based on the positioning result data or the raw data. Received from the center the corrected data created by the center based on the error data or the error of the corresponding area selected and corrected for the positioning error, and the map information linked to the area or the corrected data. Based on the error data or the corrected data and the map information, the geographical or urban situation around the portable information processing device and the portable information Map navigation method characterized by the behavior of the processor, a portable information processing apparatus is displayed on the screen of the display unit. 6. The map navigation method according to claim 4, wherein a character indicating the contents of the positioning result data or the corrected data represents the geographical or urban situation around the portable information processing device and the behavior of the portable information processing device. Or a map on which a symbol is written, or a map in which characters or symbols indicating the contents of the positioning result data or the corrected data are superimposed at a position related to the positioning result data or the corrected data. Map navigation method to use. 7. Service information linked from a center to an area, positioning result data or corrected data together with or instead of map information when executing the map navigation method according to claim 4. A service information providing method, wherein the portable information processing device provides a user with information on a service situation around the portable information processing device based on the received service information. 8. The service information providing method according to claim 7, further comprising: receiving positioning result data or corrected data, map information and service information linked thereto from the center, and determining positioning result data or corrected data, map information, A service information providing method, characterized in that a portable information processing device displays, on the screen of a display unit, information on the status of a service around the portable information processing device based on the service information. 9. The service information providing method according to claim 8, wherein the geographical or urban situation around the portable information processing apparatus, the service situation, and the behavior of the portable information processing apparatus are determined by positioning result data or corrected data and service. A map on which characters or symbols indicating the contents of the information are written, or a position where the characters or symbols indicating the positioning result data or the corrected data and the service information are associated with the positioning result data or the corrected data and the service information. A service information providing method characterized by displaying the information on a superimposed map. 10. A display unit, connection means for a positioning device and a communication device, and a control unit for executing the method according to claim 1 in cooperation with the positioning device, the communication device and the display unit. A portable information processing apparatus comprising: 11. The portable information processing device according to claim 10, wherein the connection means includes a card slot or a connector conforming to a predetermined standard, and is connectable to the device insertable into the card slot or to the connector. A portable information processing device used together with a positioning device and a communication device that are devices. 12. The mobile information processing apparatus according to claim 10 or 11, a mobile station including a positioning device and a communication device connected to the mobile information processing apparatus, the center, the center, and the mobile station. And a wireless or wired medium for connection.