JP4899839B2 - Mobile terminal and program thereof - Google Patents

Description

  The present invention relates to a portable terminal of an electronic guidance system for notifying a user of information related to a location when the wireless tag is used, for example, a predetermined distance from the wireless tag, and a program thereof.

  In recent years, it has been proposed that a ubiquitous society will be realized, information on the location will be notified, road guidance, store guidance, historic site introduction, etc., and also voice guidance to disabled people in public facilities such as stations Has been. For this reason, a guide system that informs visually impaired persons of information on dangerous points such as signals by using an artificial satellite has been recently proposed (for example, see Patent Document 1).

In Patent Document 1, a terminal device and an artificial satellite, a danger point and an artificial satellite communicate with each other, and a visually handicapped person having a terminal device can hear information such as surrounding building conditions, road conditions, and whether or not crossing is possible by voice. Is doing.
JP 2002-277276 A

  However, since conventional methods communicate with artificial satellites, communication with satellites cannot be sufficiently performed even in cities where high-rise buildings are built up as well as underground shopping streets, which makes operation unstable or unusable. Is also possible.

  In addition, because it is intended for visually impaired people, it does not give appropriate guidance to other disabled people, including healthy people, and changes the content of the guidance according to the status of the disabled people. Or it is not taken into account that the timing at which the guidance is started is changed, or that the guidance itself is not performed.

  Therefore, in order to solve the above-mentioned problem, first wireless means for receiving a signal from a wireless tag that periodically transmits a unique ID and detecting the electric field strength of the signal, and information existing on the communication network Controlling the second wireless means for accessing the server, storage means for storing physical information about the body of the owner of the wireless tag and the electric field strength, notifying means for notifying the user, and controlling the means And when the first wireless means receives the unique ID from the wireless tag, the information server is accessed to access the physical information and the unique information. Detailed information corresponding to the ID is acquired, and the detailed information includes information on the field strength threshold of the wireless tag, and the information on the field strength threshold is stored in the storage unit. Each time the first wireless means receives the unique ID, and detects the received electric field strength and compares the received electric field strength with the electric field strength threshold stored in the storage means. When the intensity becomes larger than the electric field intensity threshold, the notification means notifies the user of the physical information and detailed information corresponding to the unique ID.

  This makes it possible to use signals from wireless tags installed in city facilities (for example, illuminating lights, lighting fixtures, ceilings, utility poles, traffic lights, building walls, post boxes, etc.). Even in a place, it can be expected to communicate very stably.

  In addition, appropriate guidance can be given not only to visually handicapped persons but also to other handicapped persons including healthy persons, and the content of the guidance can be changed according to the handicapped person's handicap status. Furthermore, since it is possible to set different electric field strength threshold values for each piece of information (body information) related to the owner's body, it is possible to change the timing for starting the guidance.

  Accordingly, in order to solve the above-described problem, the first invention receives a signal from a wireless tag that periodically transmits a unique ID and communicates with a first wireless unit that detects the electric field strength of the signal. Second wireless means for accessing an information server existing on the network, storage means for storing physical information about the body of the owner of the wireless tag and the electric field strength, and notification means for notifying the user And a control means for controlling the means, when the first wireless means receives the unique ID from the wireless tag in the portable terminal of the electronic guidance system configured to access the information server. Detailed information corresponding to the physical information and the unique ID is acquired, and the detailed information includes information on the electric field strength threshold of the wireless tag, and information on the electric field strength threshold is included. Is stored in the storage means, and the first wireless means detects the received electric field strength each time the unique ID is received, and the control means compares it with the electric field strength threshold value stored in the storage means. When the received electric field intensity becomes larger than the electric field intensity threshold, the notification means notifies the user of the physical information and detailed information corresponding to the unique ID.

  This makes it possible to use signals from wireless tags installed in city facilities (for example, illuminating lights, lighting fixtures, ceilings, utility poles, traffic lights, building walls, post boxes, etc.). Even in a place, it can be expected to communicate very stably. In addition, appropriate guidance can be given not only to visually handicapped persons but also to other handicapped persons including healthy persons, and the contents of the guidance can be changed according to the disability status of the physically handicapped persons. . Furthermore, since it is possible to set different electric field strength threshold values for each piece of information (body information) related to the owner's body, it is possible to change the timing for starting the guidance.

  According to a second aspect of the present invention, in particular, in the portable terminal of the electronic guidance system of the first aspect, when the portable terminal receives a unique ID periodically transmitted from the wireless tag by the first wireless means, The second wireless means accesses the information server existing on the communication network, acquires detailed information corresponding to the unique ID from the information server, and corresponds to the unique ID in the storage means of the portable terminal Detailed information is stored, and the received electric field strength is detected every time a unique ID identical to the unique ID is received, compared with the received electric field strength threshold, and the received electric field strength is larger than the electric field strength threshold. At this time, the already-stored detailed information corresponding to the unique ID is notified to the user from the notification means of the portable terminal.

  As a result, since the mobile terminal obtains necessary information in advance for the first access, it can be expected to notify the information in a timely manner when the distance (to the wireless tag) where the information should be actually notified is reached. .

  The third invention is a program for causing a computer to execute at least a part of the portable terminal of the electronic guidance system according to any one of the first and second inventions. The CPU, RAM, ROM, storage device, I / O A part or all of the present invention can be easily realized as a program by cooperating hardware resources such as an electric information device, a computer and the like provided with O. Also, by distributing the program on a recording medium or using a communication line, program distribution can be realized very easily compared to other means.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a diagram showing an example (user use) of the entire configuration of the electronic guidance system according to the embodiment of the present invention, and FIGS. 2 and 3 are diagrams showing an example of the data configuration inside the information server 5. . Hereinafter, description will be made with reference to these drawings.

  The wireless tag 1 is an active tag (wireless device) with a built-in battery, and is attached to a device such as a traffic light, a power pole, a gate pole, a signboard, a post box, and an illuminating lamp that is installed or arranged at a predetermined position.

  The wireless tag 1 wirelessly outputs information including a unique ID at a constant time period (for example, every second). Incidentally, it is sufficient to provide only a transmitter because the wireless tag 1 only outputs wirelessly and does not need to receive wirelessly from the portable terminal 2 or the like.

  The portable terminal 2 is assumed to be a small and portable terminal such as a PDA (Personal Digital Assistant), and the first wireless unit 21 receives information including a unique ID that the wireless tag 1 periodically outputs. .

  The first radio unit 21 includes an electric field strength measuring unit 24 for detecting the electric field strength of the received radio wave. Furthermore, the portable terminal 2 stores information (physical information) regarding the physical disorder of the owner in the storage unit 26.

  The electric field strength measuring means 24 can measure the electric field strength of the received radio wave in units of dBm. The portable terminal 2 accesses the information server 5 by the second wireless means 22 using the unique ID included in the information and information (physical information) related to the physical disorder of the owner.

  The storage means 26 stores information such as information on the owner's body (body information), the electric field strength, the received unique ID, and detailed information corresponding to the unique ID. It has a function to control.

  The route for the portable terminal 2 to access the information server 5 is generally performed through the Internet 4 through a wireless LAN access point 3 installed nearby.

  Data is stored in the information server 5 in the configuration as shown in FIG.

  The physical information shown in FIG. 3 corresponds to information (physical information) related to the physical disorder of the owner. If the physical information is 0 as shown in FIG. If it is visually impaired, 2 indicates an auditory language disabled person, and 3 indicates a physically handicapped person.

  Hereinafter, description will be made with reference to FIGS. 2 and 3.

  For example, the wireless tag whose ID is 123450 (the first row in FIG. 3) is installed in a traffic light, and since there is a signal ahead, there is a notification that attention is needed, but this notification is particularly necessary. Has a portable terminal 2 of a visually handicapped person (physical information = 1), and notifies that the corresponding portable terminal 2 has a traffic light.

  That is, here, the electric field strength threshold (input level) detected by the portable terminal 2 of the visually impaired (body information = 1) is −104 (dBm), the installation location is a traffic light, and the notification information is Sig1. . It is stored in a file called htm.

  Of course, it may be reported to healthy people, but it is considered that it is possible to obtain favorable results in terms of system operation by limiting it to only necessary information, and those other than visually impaired persons (physical information = 1) There is no notification.

  Now, the electric field strength threshold value of -104 (dBm) here means that the electric field strength (input level) is -104 (dBm) or more at a position of, for example, 10 meters from the wireless tag 3 installed at the place. This is a unique value for each installation location, the notification content, or the notification subject (physical information).

  Since the wireless tag 1 is affected by a shield or a reflector depending on the installation location, even when the distance from the wireless tag 3 is 10 meters, the electric field intensity that can be measured at the 10-meter point varies. It will occur. Therefore, in order to change the electric field strength threshold corresponding to such variations, it is necessary to individually cope with each installation place.

  In the above description, the distance from the wireless tag 1 has been described as 10 meters. However, the present invention is not limited to this. For example, a notification is made when a farther position (for example, 15 meters) such as a step or a staircase is reached. Can be handled flexibly by registering a threshold value of the electric field strength at a position of 15 meters, for example. Furthermore, it is possible to notify a disabled person, in particular, a physically handicapped person (body information = 3), more quickly than a healthy person (body information = 1).

  That is, as shown in the item “installation location = step difference” in FIG. 3, a healthy person (body information = 1) has an electric field strength threshold of −95 (dBm), a distance of, for example, 10 meters, and a physically handicapped person (body information = The person of 3) is notified of an alarm at an electric field intensity threshold of −100 (dBm) and a distance of 15 meters, for example. Regarding the contents of this warning, Dana. Using the information of htm, Dan3. This is done using html information, and it is also possible to make a difference in the contents.

  Similarly, if it is a crossing, notification is given to a visually handicapped person (body information = 1) and an auditory language handicapped person (body information = 2). That is, when a radio wave stronger than the electric field strength threshold −112 (dBm) is received, Fumikir1. htm or Fumikir2. Information on html is notified.

  In the same manner, appropriate notifications are respectively made to appropriate opponents for the slope and the entrance.

  In FIG. 3, a warning is given to those who are dangerous if they are injured by a healthy person such as steps and stairs. For example, a person with physical disabilities (physical information = 3) is earlier than a healthy person. We are aiming to increase the effect by giving consideration to early notifications at a later time.

  Next, the situation when the portable terminal 2 is carried will be described in more detail.

  The wireless signal transmitted periodically by the wireless tag 1 uses, for example, low-power wireless communication. When the distance between the wireless tag 1 and the portable terminal 2 becomes about 100 meters to several tens of meters, the portable terminal 2 A wireless signal from the wireless tag 1 can be read.

  At that time, the portable terminal 2 is connected to the Internet 4 from the second wireless means 22 via the wireless LAN access point 3 installed in a street corner or a store, and from the information server 5 connected to the Internet 4. The information related to the location guidance corresponding to the ID of the wireless tag 1 is acquired.

  Although it is not unthinkable that the information acquired here is directed to the user on the spot and notified to the user from the notification means 23, since it is 100 meters away from the wireless tag 1 in some cases, There is a risk of inadvertent notification of information.

  It is also preferable in such a system that the information about the position is notified to the user from the notification means 23 in a timely manner within a short distance of, for example, within 10 meters, or in some cases within a few meters from the wireless tag 1. .

  Therefore, when the distance between the wireless tag 1 and the portable terminal 2 becomes about 100 meters to several tens of meters, the ID from the wireless tag 1 is captured wirelessly, and the portable terminal 2 relates to the location guidance of the ID. Only information is acquired from the information server 5. And until it is time to reach a closer position, it is preferable to prepare without notifying the user from the notification means 23.

  For example, if the ID obtained from the wireless tag 1 is 123451, the detailed information related to the ID and the physical information (here, 1) held by the mobile terminal 2 is acquired through the route described so far. become. That is, in this case, according to FIG. 3, the electric field strength threshold (input level) is −112 (dBm), the installation location is a crossing, and the guidance information of the location is Fumikir1. Since the file is an html file, the contents of the file are all acquired in the portable terminal 2.

  Next, when the mobile terminal 2 receives the wireless signal from the wireless tag 1 (the wireless tag of ID123451) by the first wireless means 21, the received electric field strength is detected, and the electric field strength acquired earlier. When the received electric field intensity is larger than the electric field intensity threshold value compared to the threshold value (here, -112 dBm) (that is, when entering within 10 meters from the wireless tag 1), the portable terminal 2 acquires The stored information is notified to the user by the notification means 23.

  There are various methods of information notification or alarm notification. For example, voice guidance is optimal for visually impaired people, and for people with hearing impairments, vibrate or light to notice It may be possible to provide guidance while displaying the screen with characters. It is also possible to provide guidance by combining these.

  The content of the guidance may be, for example, information on the location, the degree of danger at the location, a traffic signal, a railroad crossing, a step, a staircase, a slope, and an entrance / exit.

  In addition, various forms of use are possible, such as commercial means such as postboxes and vending machines that appeal to their existence and expand their business. In particular, in places where dangers such as railroad crossings and traffic lights are involved, warnings can be expected to greatly help people with disabilities living independently.

In the description so far, the second wireless means 22 is a wireless LAN. However, of course, the present invention is not limited to this. For example, a data communication module connectable to a mobile phone network or a PHS phone network may be used. In a place where such a wireless LAN service is not provided, it may be preferable to use such a wide area communication network.

  In this way, since the mobile terminal 2 has acquired the necessary information in advance for the first access, the information should be notified in a timely manner when the distance (to the wireless tag 1) where the information should be actually notified has been reached. Can be expected.

  In the above description, the wireless signal periodically transmitted by the wireless tag 1 has been described as using low-power wireless communication. However, the wireless signal is not limited to this, and may be weak wireless. A wireless LAN may be used in the same manner as the means 22, and when the wireless LAN is used, the first wireless means 21 and the second wireless means 22 may be shared.

  Note that the means described in this embodiment causes hardware resources such as a CPU (or microcomputer), a RAM, a ROM, a storage / recording device, an electrical / information device including an I / O, a computer, a server, and the like to cooperate. You may implement with the form of a program. In the form of a program, new functions can be easily distributed / updated and installed by recording them on a recording medium such as magnetic media or optical media or distributing them via a communication line such as the Internet.

  As described above, the present invention can be installed in a facility in the city and can provide appropriate guidance according to the target person. When guiding locations, warn early elderly people even if they are healthy, or give guidance that reflects their personal preferences in places (positions) that they prefer. Even if the same individual is the other party, it is expected to realize a guidance system that performs a fine response such as prompt guidance according to the moving speed (walking, bicycle, etc.).

The figure which shows an example of a structure (user use) of the electronic guidance system of embodiment of this invention The figure which shows the additional information (breakdown of physical information) to the information server 5 The figure which shows an example of an internal data structure of the information server 5 of this invention

Explanation of symbols

1 Wireless Tag 2 Mobile Terminal 3 Wireless LAN Access Point 4 Internet (Communication Network)
5 Information Server 6 (Field Strength Threshold) Registration Mobile Terminal 21 First Wireless Meaning 22 Second Wireless Meaning 23 Notification Means 24 Electric Field Strength Measuring Means 26 Storage Means (Physical Information)
27 Control means

Claims (3)

First wireless means for receiving a signal from a wireless tag that periodically transmits a unique ID and detecting the electric field strength of the signal;
A second wireless means for accessing an information server existing on the communication network;
Storage means for storing physical information about the body of the owner of the wireless tag and the electric field strength, notification means for notifying the user, control means for controlling the means,
In the portable terminal of the electronic guidance system composed of
When the first wireless means receives the unique ID from the wireless tag,
Access the information server to obtain detailed information corresponding to the physical information and the unique ID,
The detailed information includes information on the electric field strength threshold of the wireless tag, and the storage means stores the information on the electric field strength threshold,
Each time the first wireless unit receives the unique ID, it detects the received electric field strength, and the control unit compares the received electric field strength with the electric field strength threshold stored in the storage unit. A portable terminal for notifying a user of detailed information corresponding to the physical information and the unique ID from the notification means when the value becomes larger than an intensity threshold. The mobile terminal, upon receiving a unique ID that is periodically transmitted from the radio tag by the first wireless device, accesses the information server that is present on the communication network in the second radio unit, the Detailed information corresponding to the physical information and the unique ID is acquired from the information server, and the detailed information is stored in the storage means of the mobile terminal,
Each time a unique ID identical to the unique ID is received, the received electric field strength is detected, compared with the received electric field strength threshold, and when the received electric field strength is larger than the electric field strength threshold, the storage means mobile terminal according to claim 1, wherein notifying the user of the stored details to. The program for making a computer perform at least one part in the portable terminal in any one of Claims 1-2.

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