JP2001304908A - Navigation system for wheel chair user and navigation system therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation system capable of reducing a restriction in the case of independently moving by a wheel chair user. SOLUTION: The navigation system 2 is mounted at the wheel chair 1. The system 2 receives and recognizes a present position by receiving a signal of a GPS satellite, accesses an information center 9 from a fixed communication network 7 via a base station 5 of a communication network 4, and down loads map data for the wheel chair user. The system displays the map data together with the present position on a display based on the received map data. Since the display displays the map showing a facility and a road along which the user can move by utilizing the wheel chair 1, the user can surely move according to the map. Since the system can transmit the own present position to a third party, his family and the person concerned can deal with it by feeling relieved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair user navigation apparatus and a wheelchair user navigation system which can improve the convenience of the user when moving using a wheelchair. .

[0002]

2. Description of the Related Art Conventionally, disabled persons and elderly persons who cannot move without using a wheelchair often have to move with an attendant, and there are restrictions on moving. High degree.
Recently, powered wheelchairs have also become popular in order to reduce the burden of traveling due to attendance. However, there are still many restrictions on movement by wheelchairs, and even if it appears to be passable on a map, the range of movement is limited because it is a passage with steps and hinders the use of toilets. It is a fact.

[0003] In addition, when a wheelchair user travels alone, there are situations in which a family member or an attendant cannot quickly assist or assist in an emergency without knowing where they are. In fact, such circumstances on the third party side also limit the behavior of the wheelchair user alone.

The present invention has been made in view of the above circumstances, and an object of the present invention is to enable a wheelchair user to act with as few restrictions as possible, and to obtain information quickly in that case. Another object of the present invention is to provide a navigation device for a wheelchair user and a navigation system for a wheelchair user, which enable a third party to know the position at any time.

[0005]

According to the first aspect of the present invention, the control means obtains the current position information recognized by the position recognition means, and accesses the information source for the wheelchair user by the wireless communication means. As a result, wheelchair user map data or wheelchair user guidance data corresponding to the current position information is received, and the data is displayed on the display unit based on the obtained data. This allows the wheelchair user to check the current position on the map by looking at the map displayed on the display unit, and also displays information that the wheelchair user can pass at the same time. It is possible to move quickly based on accurate and accurate information.

[0006] In this case, the wheelchair user cannot pass by a small stair or a step alone when passing through a road or a passage. In this case, a detour or a dedicated passage exists. It is very urgent to know in advance whether information such as whether or not facilities such as elevators can be used and whether a dedicated toilet for wheelchair users is installed etc. This is important, and convenience can be improved by being able to obtain such information accurately when moving.

According to the second aspect of the present invention, when the destination is input, the route calculating means determines the route from the current position to the destination based on the wheelchair user map or the data of the wheelchair user's traffic guidance. Wheelchair users,
With a simple operation of simply inputting the destination, a route that can reach the destination via a wheelchair-accessible route can be displayed.

According to the third aspect of the present invention, in each of the above inventions, the control means can transmit data relating to its own current position in response to a request for transmitting current position information received from the outside via the wireless communication means. For example, a family member or a related person who wants to know the trend of a wheelchair user can obtain the information by requesting transmission of the current position information through wireless communication means. And related parties can check the location on the map, and both sides can deal with it with confidence.

According to a fourth aspect of the present invention, in each of the above-described configurations, the control means automatically transmits data relating to the current position of the user to a designated contact, such as a family member or a related person, through the wireless communication means. Because it is possible to send, even if a wheelchair user acts alone,
By automatically transmitting the information of the current location to the designated contact, the user can be automatically notified. As a result, a third party specified as a contact such as a family member or a related person can periodically obtain the current location information,
The current position can be recognized, and both sides can deal with the situation with confidence.

According to the fifth aspect of the present invention, in each of the above-mentioned inventions, when the information source for the wheelchair user is accessed and the data is received, the assistance that the wheelchair user can receive when using the facility is provided. If the data of the contact information requested by the user is included, the contact information can be transmitted through the wireless communication means by the control means, for example, when getting on or off a train or using a facility that requires an assistant, In addition to being able to know the destination easily, it is also possible to make the contact perform a call operation by wireless communication means before using it, check the contact information, input the phone number etc. of the contact, etc. This makes it possible to easily and quickly contact without the troublesome trouble of the user.

According to a sixth aspect of the present invention, in the fifth aspect of the invention, when the map displayed on the display unit includes a facility having data of contact information of an assistant request, the control means applies the corresponding map to the map. In addition to displaying the presence of a contact on the display part of the facility and displaying the facility on the map when the facility is specified, it is possible to make a call to the contact, so that the wheelchair user can display it. You can know that there is contact information of the facility you want to use on the map displayed in, and you can make a call to the contact by a simple operation just specifying the position .

According to the seventh aspect of the present invention, in each of the above inventions, the position recognition means is configured to receive the GPS signal and detect the current position. When a map corresponding to the position is obtained from the information source, the user can display his / her current position on the display unit without using wireless communication means when performing an action within the range of the map.

According to the invention of claim 8, in each of the above-mentioned inventions, the wheelchair user can use this as a wireless communication means by connecting via an independent portable telephone connector. If not, a mobile phone that is used as a normal mobile phone can be used as a wireless communication means by connecting with a connector when using a wheelchair. There is no need to have multiple types of means, and for wheelchair users who already have mobile phones, it is possible to reduce the burden of purchasing new wireless communication means and to reduce the cost of using them. Furthermore, the number of owned devices can be reduced and a simple configuration can be achieved.

According to the ninth aspect of the present invention, in the first to seventh aspects of the present invention, an interface connectable by a wireless LAN system is provided, and a wheelchair user can use an independent portable device having a wireless LAN system interface. By connecting the phone through both interfaces, this can be used as a wireless communication means,
Just by getting on the wheelchair while holding the mobile phone, the wheelchair user can be connected by linking via the wireless interface and used as a wireless communication means. Accordingly, in addition to the effect of the eighth aspect of the present invention, since the connection via the connector becomes unnecessary, even if the user forgets, it can be automatically used as the wireless communication means. You can easily use it without having to do it.

According to the tenth aspect, the ninth aspect is provided.
In the invention of the above, the interface of the wireless LAN system is configured to conform to the Bluetooth standard, and when the mobile phone enters the communication area, the link is established by the Bluetooth standard to form a piconet and used as the wireless communication unit by the control unit. As a result, in addition to the above-described functions and effects, communication with other devices conforming to the Bluetooth standard can also be performed, so that versatility or expandability can be improved and convenience can be further improved. Become like

According to the eleventh aspect of the present invention, the above first aspect is provided.
In the invention of No. 0, in a case where a specific facility that can be used by a wheelchair user is provided with an information providing device provided with an interface linkable by the Bluetooth standard and capable of transmitting guidance information in the specific facility, The control means establishes a link with the information providing device through the Bluetooth interface, receives the guidance information in the specific facility, and displays the guidance information on the display unit. Can be directly received from the facility side and displayed, and can be performed based on accurate information even when moving within the facility.

According to a twelfth aspect of the present invention, in each of the above inventions, a storage means for storing normal map data is provided,
The data received from the wheelchair user information source mentioned above is
If the data is additional data, such as a road, a slope, or an elevator, a toilet, or a facility that can be used in a wheelchair but is not map data, the received data is added to the map data read from the storage means. Since a small amount of data is received from the information source, a map for a wheelchair user can be promptly displayed on the display unit.

According to a thirteenth aspect of the present invention, in each of the above-mentioned inventions, when data of a wheelchair user's map or wheelchair user's traffic guidance data is received from the information source by the wireless communication means, the data is received by the packet communication method. Therefore, it is possible to increase the efficiency of use of the communication line when performing communication and achieve the purpose with a communication fee corresponding to the amount of received information, so that, for example, when using a wheelchair, the connection to the communication line is always connected. As a result, it is possible to always transmit the current position information and to obtain necessary information accurately at low cost.

According to the fourteenth aspect of the present invention, in each of the above inventions, the wireless communication means is configured as a portable telephone which performs the W-CDMA wireless communication system, so that the communication quality is improved and information is reliably obtained. Will be able to do it.
In addition, by employing the W-CDMA communication method, the position of the mobile phone can be accurately detected from the base station side of the communication network, and the position can be specified.

According to a fifteenth aspect of the present invention, as the wheelchair user navigation system, the wheelchair user navigation apparatus according to any one of the first to fourteenth aspects, and a wheelchair user map or wheelchair user guidance data are used. Has a configuration for providing a wheelchair user information source that transmits corresponding data from the current position information when accessed from a wheelchair user navigation device via a communication network. For example, by constructing an information center or a network system, it becomes possible for a wheelchair user to accurately obtain highly convenient information by accessing these information sources and to act.

According to a sixteenth aspect of the present invention, there is provided a navigation device for a wheelchair user using the W-CDMA communication type portable telephone according to the fourteenth aspect, and data of a wheelchair user map or wheelchair user guidance. An information source for a wheelchair user; a base station of a communication network transmitting ranging signals from at least three base stations located in proximity to the wireless communication means to detect a current position thereof; Since the current position information detected in response to the request of the position recognizing means is configured to be transmitted, the current position can be recognized even when the position recognizing means is not provided with the above-described GPS position detecting function. In the case of a configuration having a GPS position detecting function, when the current position cannot be recognized by the GPS, the position recognition by the W-CDMA method is performed. Runode, it is possible to perform generally the recognition of the current position reliably and quickly.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment A first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 schematically shows the overall configuration of the system. A wheelchair 1 is provided with a wheelchair user navigation device (hereinafter simply referred to as a navigation device) 2 referred to in the present invention in a detachable manner. The navigation device 2 is configured to be large enough to be portable, and is mounted on the wheelchair 1 when the wheelchair user 3 moves.

This navigation device 2 is a W-CDM
The communication network 4 and the base stations 5a, 5
b, 5c and so on. Thus, for example, communication with another navigation device 2a can be performed through the base station 5c. The communication network 4 can be connected to a fixed communication network 7 through an exchange 6. The fixed communication network 7 is connected to a general telephone 8 as a fixed station subscriber and an information center 9 as an information source for wheelchair users according to the present invention by a line, and is accessed from the navigation device 2. be able to.

FIG. 2 shows a block configuration of the navigation device 2. Control circuit 10 as control means
Means ROM, R mainly for microcomputers
It is configured to include an AM and various interface circuits. The control circuit 10 includes a position detector 11 as position recognition means, and a mobile communication device 1 as wireless communication means.
2, a display unit 13, an operation unit 14, and a memory 15 as storage means are connected. As will be described later, when performing position recognition on the communication network 4 side by the W-CDMA method, the control circuit 10 receives the position detection signal and recognizes the position, and thus also functions as a position recognition unit. I do.

The position detector 11 includes a plurality of GPS satellites 16
A GPS signal is received from a, 16b, etc. to calculate the current position, and a position detection signal is output to the control circuit 10. The control circuit 10 recognizes the current position together with map data described later based on the position detection signal from the position detector 11. The mobile communication device 12 performs communication according to the W-CDMA system, and connects the base stations 5a to 5a to the communication network 4 described above.
It is provided so as to be connectable via the terminal c or the like.

The display unit 13 is composed of, for example, a liquid crystal panel, and receives a display control signal from the control circuit 10 to display a map or display various information. The operation unit 14 is used for performing various operation inputs, and includes operation switches provided together with a display unit on the surface of a main body (not shown).
Input to 0. The memory 15 stores and holds various data, downloaded map data, and the like.

Next, the operation of the present embodiment will be described with reference to FIGS. In the following description, the operation is divided into the following functions. That is,
(1) current position detection operation, (2) map data download and display operation, (3) route search and display operation,
There are five functions of (4) display and communication operation of boarding contact, and (5) operation of contacting the current position to a third party.

(1) Operation for Detecting Current Position The navigation device 2 has the following basic operation functions:
The current position is detected. The control circuit 10 performs the operation of detecting the current position according to the flowchart shown in FIG. The control circuit 10 first determines whether or not position detection by the position detector 11 is possible (step S1).

The position detector 11 can calculate the current position based on GPS signals from at least three and preferably four GPS satellites 16a, 16b,... When these signals can be received. . Underground or in a tunnel,
Alternatively, there may be a case where the GPS signal cannot be received while in a building, and in this case, the operation of detecting the current position by the position detector 11 becomes impossible.

The control circuit 10 determines "YE" in step S1.
In the case of "S", the GPS signal from the position detector 11 is received (step S2), the current position is calculated based on the signal, and this is created as current position information (step S3). On the other hand, if “NO” in the step S1,
W-CDMA which is a communication method by the mobile communication device 12
Recognition of the current position is performed using the distance measurement technology that can be achieved by the communication method.

In this case, the position of the mobile communication device 12 is detected on the base station 5 side as follows. For example, by transmitting distance measurement signals from at least two base stations 5 adjacent to the base station 5a in the communication area where the wheelchair user 3 is present and receiving the reflected signals, the distance from each base station 5 is determined. To detect. Subsequently, since the position of each base station 5 at which the measurement is performed is known, the position of the mobile communication device 12 can be calculated based on the distance measured from the three positions.

The control circuit 10 requests the base station 5a to perform the above-described position detection processing, receives the resulting current position information (step S4), and creates current position information based on the received current position information (step S3). ). As a result, the area in which the position can be detected is widened, and the restriction on the position detection due to the moving location can be reduced.

(2) Download and Display Operations of Map Data Next, download and display operations of map data will be described with reference to FIG. When a display operation of the current position is requested by the operation of the wheelchair user 3, the control circuit 10
First, the information center 9 is accessed via the mobile communication device 12 via the base station 5a, the communication network 4, the exchange 6 and the fixed communication network 7. Next, the current position information created as described above is transmitted to the information center 9 to specify an area of the map data to be downloaded.

As a result, the information center 9 transmits the wheelchair user map data corresponding to the transmitted current position information to the navigation device 2.
The control circuit 10 causes the display unit 13 to display the received map data. The display state is as shown in FIG. 4, for example. In this case, the map displayed on the display unit 13 includes, in addition to the normal map display, whether or not the road of the displayed map can be passed by the wheelchair 1 and whether or not there is a toilet or elevator that can be used with the wheelchair. Information such as whether there is a step or a slope at the entrance to the building is shown in FIG.
It is indicated by the legend mark shown in.

As a result, the wheelchair user 3 can use the display unit 1
According to the display of 3, the user can operate the wheelchair 1 to a desired place and move without trouble. Also, depending on the building used, even if there is a step at the entrance as in the S building in the figure, the "TEL" mark is displayed, so contact in advance to assist in entering the building You will be guided so that you can get it. Such information necessary for the wheelchair user 3 is displayed, so that even if the user moves alone, considerable movement can be made by himself, and prompt contact is made when an assistant is needed. To enter the building smoothly.

(3) Route Search and Display Operation Next, a search for a route to the destination and a display operation thereof when moving within the range of the downloaded map will be described with reference to FIG.
This will be described with reference to FIG. When the wheelchair user 3 operates the operation unit 14 to move the cursor to the destination and specify, for example, or input a block number of the destination, the control circuit 10 sets the current position to the specified destination. To find a travel route from.

In this case, the search for the moving route is performed on the premise of a route that can be passed by a wheelchair. For example, on the map shown in FIG. 5 described above, there is a pedestrian crossing bridge which cannot be passed by the wheelchair 1, so that the search is made so as to avoid this. In the case of a healthy person, as shown by a dotted line in FIG. 6, even when a route via a pedestrian crossing bridge is searched, when a wheelchair 1 is used, for example, a route indicated by a black arrow in the diagram is searched. Will be displayed. At the same time, the distance to the destination and the estimated required time are also displayed.

Thus, the user can move while looking at the map displayed on the display unit 13, and the route to the destination to which the wheelchair user 3 should move can be automatically calculated and displayed. Therefore, it is possible to move quickly without waste based on an accurate route search based on information that cannot be obtained with ordinary map information.

(4) Display and communication operation of boarding contact Next, the display and communication operation of boarding contact will be described with reference to FIG. When moving using wheelchair 1,
When using a facility such as a building or getting on or off a train or the like, assistance may be required for the movement. When the wheelchair user 3 moves alone by operating the wheelchair 1, it is necessary to notify the relevant persons in advance at each facility. In the navigation device 2, when such information is obtained together with the map data, the information is displayed on the display unit 13.

FIG. 7 shows contact information for requesting assistance in getting on and off a train at station A, for example. When the wheelchair user 3 operates the operation unit 14 to position the cursor (indicated by a white arrow in the figure) K at the position of the station A, the control circuit 10 uses the JR line as the boarding contact information, It is displayed in the surrounding area of the balloon so that the user can select and specify whether to use a private railway XX railway.

Next, when the wheelchair user 3 uses the JR line, the cursor K is moved to “1. JR line” and the switch is operated in that state, and the control circuit 10
Automatically sends a call to the JR line boarding contact at the corresponding A station. Thereby, the wheelchair user 3
When making a contact prior to using the railway, it is possible to easily and quickly make a contact without having to perform a troublesome operation of searching for a contact or dialing the telephone number.

(5) Operation of Notifying Third Party of Current Position Next, the operation of notifying the third party of the current position will be described with reference to FIGS. 8 and 9. When the wheelchair user 3 acts alone by operating the wheelchair 1, it is often an important factor for a third party, such as a family member or a person concerned, to know where the destination is. Therefore, moving wheelchair user 3
When the current position information of the user is voluntarily transmitted (see FIG. 8)
And a case obtained by a request from a third party (see FIG. 9).

First, when it is set to transmit the current position information voluntarily, the control circuit 10 executes the program shown in the flowchart of FIG. 8 at regular intervals. The control circuit 10 performs the same processing as that shown in FIG. 3 to perform the current position detection processing (step T1). Subsequently, the control circuit 10 performs a calling operation by the mobile communication device 12 to a communication destination as a third party such as a family member or a related person designated in advance (step T2), and transmits the current position information (step T2). T3). When the third party's communication destination is, for example, a general telephone 8 connected to the fixed communication network 7, the mobile communication device 12 passes through the base station 5 a, the communication network 4, the exchange 6, and the fixed communication network 7. To the general telephone 8.

As a result, the current position information of the wheelchair user 3 is transmitted to the third party on a regular basis. Also, by tracing the current position, the trajectory of the movement can be recognized.

On the other hand, unlike the above case, a third party such as a family member or a related person can request the current position information. In this case, the third party makes a call to the contact of the mobile communication device 12 to make a connection, and transmits a request for transmitting the current position information. When the mobile communication device 12 is connected, the navigation device 2 executes the program shown in the flowchart of FIG.

The control circuit 10 first determines whether or not the current position information is to be transmitted (step P1).
In the case of "S", the current position detection processing is performed in the same manner as the processing of FIG. 3 described above (step P2), and thereafter, the obtained current position information is transmitted to the third party (step P3).

As a result, the current position information of the wheelchair user 3 can be obtained from the third party at any time.
In combination with the above-mentioned spontaneous current position information transmission mode, the current position can be quickly and reliably recognized, so that the family and related persons as third parties and the wheelchair user 3 can both recognize the current position. You will be able to move with peace of mind.

In the above-described case, the general telephone 8 connected to the fixed communication network 7 such as a family or a person concerned as a third person has been described. Wheelchair users can be targeted as third parties. In this case, a connection can be made from the mobile communication device 12 of the navigation device 2 owned by the third party, for example, through the base station 5c.

According to this embodiment, the following effects can be obtained. First, map information which is very useful for the wheelchair user 3 when moving in the wheelchair 1 is accessed to the information center 9 by the mobile communication device 12 to download map data corresponding to the current position. Therefore, it is possible to accurately obtain information necessary for movement by the wheelchair 1 which cannot be obtained by a general map. At this time, information on facilities to be used can be obtained at the same time and displayed on the display unit 13, so that the facilities can be used with the information as a guide.

Second, by designating and inputting a destination, the user can search for a route using the wheelchair 1 from the current position to the destination and display the route. It is possible to reliably move using a wheelchair.

Third, if contact information is available when using a station or facility that requires an assistant, the presence of contact information is displayed, and the contact is designated. By doing so, the calling process can be automatically performed, so that it is possible to easily and quickly contact a necessary place without performing a troublesome operation.

Fourth, since the current location information can be transmitted to a third party voluntarily or in response to a transmission request, even if the wheelchair user 3 moves alone, the destination is determined by the family or the family. A third party such as a related person can recognize as necessary, and both parties can deal with the situation with confidence.

(Second Embodiment) FIGS. 10 to 15
Shows a second embodiment of the present invention, and differs from the first embodiment in that a mobile phone 16 is used as a wireless communication unit instead of the dedicated mobile communication device 12 provided in the navigation device 2. It has just been made available. In this case, the navigation device 2 is provided with a Bluetooth interface 17, and the mobile phone 16 is also provided with a Bluetooth interface (not shown).

The Bluetooth standard is known as a form of wireless LAN. When other devices are present in a communication area, a piconet is formed by communicating with each other to establish a link. It defines the protocol so that information can be exchanged between them.

In this embodiment, it is assumed that the navigation device 2 uses the wheelchair 1 while the wheelchair user 3 carries the mobile phone 16. When the mobile phone 16 used for a conversation using a normal wireless communication line enters the communication area of the Bluetooth interface 17 of the navigation device 2, a communication process is started between the two to establish a link and form a piconet. I do. As a result, as in the first embodiment, the mobile phone 16 can be controlled by the control circuit 10 so as to function as a wireless communication unit.

Since the navigation apparatus 2 has the Bluetooth interface 17, the interface 17 can be connected to other devices. For example, wheelchair user 3
A guide information server provided with a similar Bluetooth interface is provided at a facility used by the user, and when the navigation device 2 approaches the communication area, a link is established and a piconet is formed to download the guide information. be able to.

FIG. 11 shows a facility or a building provided with such a guide information server with the information added thereto. As shown in the legend of FIG. 12, the information is indicated by a mark indicated by "i" in the figure. are doing. Thus, for example, when going to A station, B department store, or C hall, it is a facility that can automatically establish a link with the guidance information server and obtain guidance information inside the facility. You will understand.

Next, the above operation will be described with reference to FIGS. FIG. 14 is a plan view of a portion near the entrance door 18a of the building 18. A guide information server 19a is provided in the vicinity of the entrance door 18a, and a guide plate 20a is posted on a part of the room 18b when entering the inside, and another guide information server 19b is arranged near the guide plate 20a. The guide information servers 19a and 19b are provided so that guide information for using the inside of the building 18 can be transmitted.

FIG. 15 shows each floor 18c in the building 18.
2 shows a plan view near the elevator 21 of FIG. In each floor 18c, a floor guide plate 20b is arranged on a wall near the entrance 21a of the elevator 21, and a guidance information server 19c is arranged beside the floor guide plate 20b. The guide information server 19c is provided so that guide information necessary for using the floor 18c can be transmitted. Each of these guidance information servers 19a to 19c has a Bluetooth interface.

When entering the building 18, when entering the communication area of the guidance information server 19a provided at the entrance door 18a when entering the building 18, the navigation device 2 executes the program according to the flowchart shown in FIG. Starts link processing. The control circuit 10 starts the Bluetooth link processing (step Q1), and upon receiving a link response from the guidance information server 19a (step Q2), executes the link processing and establishes it to form a piconet between the two (step Q3). .

After that, the control circuit 10 receives the data of the guide information on the building from the guide information server 19a (step Q4), and subsequently also receives the position information corresponding to the position of the guide information server 19a (step Q4). Q5).
Based on the received data, the control circuit 10 displays the guidance information on the display unit 13 (Step Q).
6). Similarly, after entering the building 18, the interior 18b
Comes near the guide plate 20a, the guide information server 19b
And a link can be established to obtain guidance information, and also in the vicinity of the entrance 21a of the elevator 21, a link can be established with the guidance information server 19c to obtain guidance information on the floor 18c.

As a result, the wheelchair user 3 can use the display unit 1
3, it is possible to recognize information such as the layout inside the building 18 and the available elevators, toilets, and slopes of each floor 18c. Even when moving alone, the minimum necessary assistance is excluded. Therefore, they can act without the help of a third party.

(Other Embodiments) The present invention is not limited to the above embodiment, but can be modified or expanded as follows. The case where the mobile communication device 12 and the mobile phone 16 are used as the wireless communication means has been described. However, the mobile communication device 12 and the mobile phone 16 are not limited to the W-CDMA communication system, and the PDC system can be used. (PH
A configuration using S) may be adopted.

Although the information center 9 is configured to be connected to the fixed communication network 7, it may be configured to be directly connected to the communication network 4. Instead of the information center 9, an information network or the like capable of providing similar information for wheelchair users can be formed and used as an information source. In addition to being connected, information can be obtained through the Internet.

When the position can be detected by using the wireless communication means of the W-CDMA communication system, GP
The position detector 11 for receiving the signal of the S satellite and detecting the current position may be omitted. In this case, the control circuit 1 based on the position information obtained from the communication network 4 side.
0 means that the position is recognized.

[Brief description of the drawings]

FIG. 1 is a schematic system configuration diagram showing a first embodiment of the present invention.

FIG. 2 is a block diagram of a navigation device.

FIG. 3 is a flowchart of a position detection processing program.

FIG. 4 is a diagram showing a display example of a map for a wheelchair user.

FIG. 5 is a diagram showing a legend of a displayed map.

FIG. 6 is a diagram showing a display example of a searched route;

FIG. 7 is a diagram showing a display example of a boarding contact at a station;

FIG. 8 is a flowchart of a program for transmitting current position information to a third party (part 1).

FIG. 9 is a flowchart of a program for transmitting current position information to a third party (part 2).

FIG. 10 is a view corresponding to FIG. 2, showing a second embodiment of the present invention;

FIG. 11 is a diagram corresponding to FIG. 4;

FIG. 12 is a diagram corresponding to FIG. 5;

FIG. 13 is a flowchart of a link processing program using Bluetooth.

FIG. 14 is a layout diagram of a guidance information server at an entrance of a building.

FIG. 15 is a layout diagram of a guidance information server on each floor of a building.

[Explanation of symbols]

1 is a wheelchair, 2 is a navigation device for wheelchair users,
3 is a wheelchair user, 4 is a communication network, 5a, 5b and 5c are base stations, 6 is an exchange, 7 is a fixed communication network, 8 is a general telephone,
9 is an information center (information source for wheelchair users), 10 is a control circuit (control means), 11 is a position detector (position detection means), 12 is a mobile communication device (wireless communication means), and 13 is a display unit , 14 an operation unit, 15 a memory (storage means), 1
6 is a mobile phone (wireless communication means), 17 is a Bluetooth interface, 18 is a building (facility), 19a, 1
9b and 19c are guide information servers, 20a and 20b are guide plates, and 21 is an elevator.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G08G 1/137 G08G 1/137 G09B 29/00 G09B 29/00 A 29/10 29/10 A F-term ( 2C032 HB22 HB25 HC05 HC08 HC11 HC21 HC27 HD03 HD04 HD07 HD13 HD16 2F029 AA07 AB07 AC02 AC06 AC13 AC14 5H180 AA23 BB04 BB15 FF05 FF22 FF24 FF33 9A001 CC02 CC05 CC08 HH23 JJ77 JJ78

Claims (16)

[Claims] 1. A position recognition means for recognizing a current position, a wireless communication means connectable to a communication network, a display unit capable of displaying a map, and a wireless communication means for a wheelchair user via a communication network by the wireless communication means. Control means for accessing an information source, receiving wheelchair user map data or wheelchair user traffic guidance data corresponding to the information on the current position recognized by the position recognition means, and displaying the data on the display unit. A navigation device for a wheelchair user, comprising: 2. The wheelchair user navigation device according to claim 1, wherein when a destination is input, a route from a current position to the destination is displayed on the wheelchair user map or the wheelchair user's traffic guide. A navigation device for a wheelchair user, comprising: a route calculation means for calculating a route through which a wheelchair user can pass based on the data. 3. The navigation device for a wheelchair user according to claim 1, wherein said control means transmits data relating to its own current position in response to a transmission request for current position information received from outside through said wireless communication means. A wheelchair user navigation device configured to be capable of transmitting. 4. The navigation device for a wheelchair user according to claim 1, wherein the control unit transmits data relating to a current position of the user to a designated contact via the wireless communication unit. A wheelchair user navigation device configured to be capable of transmitting. 5. The wheelchair user navigation device according to claim 1, wherein the control unit accesses a wheelchair user information source and receives the data when the wheelchair user receives the data. In the case where the data of the contact information of the assistant request that can be received when the user uses the facility is included, it is possible to transmit to the contact information through the wireless communication means. Navigation device for wheelchair users. 6. The navigation device for a wheelchair user according to claim 5, wherein the control unit is configured to include, when a map displayed on the display unit includes a facility having contact information of the assistant request,
It is configured to display the presence of a contact on the display part of the relevant facility on the map, and to be in a display state that allows transmission to the contact when the facility is specified on the map. A navigation device for a wheelchair user. 7. The navigation device for a wheelchair user according to claim 1, wherein said position recognizing means is a GPS (Global Positioning System).
tem) A navigation device for wheelchair users, wherein the navigation device is configured to detect a current position by receiving a satellite signal. 8. The wheelchair user navigation device according to claim 1, wherein the wireless communication unit can be controlled by the control unit by connecting an independent mobile phone via a connector. A navigation device for a wheelchair user, wherein the navigation device is configured as a state. 9. The navigation device for a wheelchair user according to claim 1, further comprising an interface connectable by a wireless LAN system, wherein the wireless communication unit has an independent interface having a wireless LAN system interface. A navigation device for a wheelchair user, wherein the navigation device is configured to be controllable by the control means by connecting the portable telephone set through a wireless LAN via the interface. 10. The navigation device for a wheelchair user according to claim 9, wherein the interface of the wireless LAN system is configured to conform to a Bluetooth standard. A navigation device for a wheelchair user, wherein the navigation device is configured to establish a piconet by establishing a link according to the Bluetooth standard. 11. The navigation device for a wheelchair user according to claim 10, wherein the navigation device is provided in a specific facility where the wheelchair user can use, and has an interface linkable with the Bluetooth standard and transmits guidance information in the specific facility. When the information providing device is provided so as to be capable of being provided, the control means, when establishing a link with the information providing device through the Bluetooth interface, receives the guide information in the specific facility and receives the guide information. A navigation device for a wheelchair user, wherein the navigation device is configured to be displayed on the display unit. 12. The wheelchair user navigation device according to claim 1, further comprising: storage means for storing normal map data, wherein said control means reads information from said wheelchair user information source. When the received wheelchair user map or wheelchair user's traffic guidance data is additional data of a wheelchair-accessible road, a slope, or a wheelchair-enabled elevator, toilet, facility, or the like, the storage means A navigation device for a wheelchair user, wherein the navigation device is configured to add the received additional data to the map data read from the computer and display the data on the display unit. 13. The navigation device for a wheelchair user according to claim 1, wherein the wireless communication means transmits data of a wheelchair user map or wheelchair user guidance information from the information source. A navigation device for a wheelchair user, wherein the navigation device is configured to receive data by a communication method. 14. The wheelchair user navigation device according to claim 1, wherein the wireless communication means is a W-CDMA (Wideband Code Diode).
A navigation device for a wheelchair user, wherein the navigation device is a mobile phone that performs a wireless communication method. 15. A wheelchair user navigation device according to claim 1, further comprising a wheelchair user map or data for a wheelchair user, wherein said navigation device communicates with said wheelchair user navigation device. A wheelchair user information source for transmitting said data from the current position information when accessed via a network. 16. A wheelchair user navigation device according to claim 14, comprising a wheelchair user map or data for a wheelchair user guidance, wherein said navigation device is accessed from said wheelchair user navigation device via a communication network. And an information source for a wheelchair user transmitting the corresponding data from the current position information, wherein the base station of the communication network is at least three base stations located close to the wireless communication means. A function of transmitting a ranging signal from the device to detect the current position thereof, and transmitting the detected current position information in response to a request of the position recognition means of the wheelchair user navigation device. Characteristic navigation system for wheelchair users.