JP2015106328A - Function restriction device, function restriction system, function restriction method, and function restriction program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a function restriction device capable of performing accurate and highly reliable function restriction without losing convenience of a portable terminal.SOLUTION: The function restriction device comprises: approach detection means which detects an approach of a moving object and outputs moving object approach information showing whether an approach occurs; and information transmission means which is installed in a predetermined installation area and transmits caution information including the moving object approach information to a predetermined announcement area.

Description

  The present invention relates to device function restriction, and more particularly, to a function restriction device, a function restriction system, a function restriction method, and a function restriction program for restricting functions of a mobile terminal.

  In recent years, mobile information terminals such as mobile phones and smartphones (hereinafter referred to as “mobile terminals”) have become widespread. With the widespread use of mobile terminals, users of mobile terminals (hereinafter also simply referred to as “users”) gaze at the screen to operate the mobile terminals, which distracts attention to the surroundings. A situation has occurred. When attention to the user's surroundings is distracted, there is a possibility that an accident may occur in which the user is injured by falling while walking or colliding with an obstacle. In particular, there is a risk of serious injury on the platform of the railway station (hereinafter also simply referred to as “home”) by falling to a track under the platform or coming into contact with the train. Therefore, it is effective to appropriately limit the use of the mobile terminal in the home, and a method for that is required.

  The risk to the user depends on the situation. Therefore, when restricting the use of the mobile terminal by the user, it is desirable to perform according to various situations. For example, when the train is approaching the platform, when the user is watching the mobile terminal at the end of the platform facing the track, the use of the mobile terminal is restricted because the risk of the accident described above is high. The need to do is high.

  On the other hand, if the train is not close to the platform, or if the user is looking at the mobile device inside the safety line, such as in the center of the platform, the risk of accidents is low. The need to limit is low.

  As described above, in order to maintain the convenience when the user uses the terminal, it depends on various situations where the user is placed, such as the position on the user's home and the presence or absence of the train. It is desirable to implement restrictions on the use of mobile terminals.

  Various techniques are disclosed in order to prevent a user's accident when using a portable terminal.

  For example, Patent Document 1 discloses an accident prevention additional function operation system for a mobile terminal that notifies a user of the mobile terminal of an incoming train. The system of Patent Literature 1 collects and analyzes the voice around the terminal from a microphone added to the portable terminal. And the system of patent document 1 detects the approach of the train to a home based on an analysis result, and warns a user.

  Patent Document 2 discloses a guidance system that prompts a user of a mobile terminal to perform a safe action in a station premises. The guidance system of Patent Document 2 receives radio waves emitted from a mobile terminal by a wireless transceiver installed on the ceiling of a home or the like. And the guidance system of patent document 2 estimates the position of a portable terminal from the intensity | strength of a received radio wave, and alerts a user.

JP-A-2005-333599 (page 9-11, FIG. 1-3) JP 2003-032732 A (Page 5-6, FIGS. 1 and 3)

  Each of the above known techniques has problems. In the accident prevention additional function operating system of the portable terminal disclosed in Patent Document 1, the warning is generated regardless of the position on the user's home. Therefore, there is a problem that a warning is issued even when a warning is unnecessary, such as when the user is in the center of the home. Further, the system of Patent Document 1 has a problem due to the fact that the accuracy of voice recognition is not 100%. That is, the system of Patent Literature 1 may not generate a warning if a voice indicating that the user should be warned is input, if the voice is erroneously recognized. Conversely, the system of Patent Document 1 may misrecognize a voice unrelated to the user, such as an announcement of an adjacent home, and issue an unnecessary warning.

  Since the position of the portable terminal is estimated from the intensity of the received radio wave, the guidance system of Patent Document 2 has a problem that the reliability of the warning is lacking as in the system of Patent Document 1. That is, the system of Patent Document 2 can also receive radio waves from portable terminals located on adjacent homes. For this reason, the system of Patent Document 2 determines that the position of the user far from the end of the home is erroneously close and generates an unnecessary warning, or conversely, erroneously positions the user near the end of the home. May not be able to generate necessary warnings. In addition, in the home, a safe zone and a dangerous zone may be clearly separated by road markings. However, the system of Patent Document 2 cannot accurately determine whether the user is in a safe zone or a dangerous zone because the estimation of the user's position based on the radio wave intensity is inaccurate. Therefore, the system of Patent Document 2 may not generate a necessary warning or generate an unnecessary warning.

As described above, there is a problem that the danger notification to the user by the system using voice or radio waves as in Patent Documents 1 and 2 is not reliable.
(Object of invention)
The present invention has been made in view of the technical problems as described above, and can provide an accurate and reliable function restriction without impairing the convenience of the mobile terminal, and a function restriction device and a function restriction system. An object is to provide a function restriction method and a function restriction program.

  The function restriction device of the present invention detects an approach of a moving object and outputs a moving object approach information indicating the presence or absence of approach, and attention information installed in a predetermined installation area and including moving object approach information. And an information transmission means for transmitting to a predetermined notification area.

  The function restriction system of the present invention includes an approach detection unit that detects approach of a moving object and outputs moving object approach information indicating the presence or absence of approach, and attention information that is installed in a predetermined installation area and includes moving object approach information. A function restriction device comprising an information transmission means for sending information to a predetermined notification area, an information reception means for receiving attention information from the function restriction device, a function execution means for executing a predetermined function, and an information reception means And a portable terminal device including a function restriction unit that performs a predetermined determination when received and stops execution of a predetermined restricted function included in the function based on a result of the determination.

  The function restriction method of the present invention detects the approach of a moving object, outputs moving object approach information indicating the presence or absence of approach, and transmits caution information including moving object approach information from a predetermined installation area to a predetermined notification area. The mobile terminal device that executes the predetermined function receives the caution information, makes a predetermined determination when the mobile terminal device receives the caution information, and the predetermined restriction included in the function based on the determination result The execution of the function is stopped.

  The function restriction program of the present invention is a function execution means for executing a predetermined function, detects the approach of a moving object, outputs moving object approach information indicating the presence or absence of approach, and transmits caution information including moving object approach information. The information receiving means for receiving the attention information from the function restriction device and the computer provided in the portable terminal device including the function execution means for executing the predetermined function, when the information receiving means receives the attention information, make a predetermined determination, and determine Based on the result, it is made to function as a function restricting means for stopping execution of a predetermined restricted function included in the function.

  The function restriction device, the function restriction system, the function restriction method, and the function restriction program of the present invention have an effect that accurate and highly reliable function restriction can be performed without impairing the convenience of the mobile terminal.

It is a block diagram which shows the structure of the function restriction | limiting apparatus of the 1st Embodiment of this invention. It is a block diagram which shows the structure of the portable terminal of the 1st Embodiment of this invention. It is a block diagram which shows the structure of the function restriction | limiting system of the 1st Embodiment of this invention. It is a figure which shows schematic structure of the function restriction | limiting system of the 2nd Embodiment of this invention. It is a block diagram which shows the structure of the portable terminal with a function restriction | limiting of the 2nd Embodiment of this invention. It is a sequence diagram which shows operation | movement of the function restriction | limiting system of the 2nd Embodiment of this invention. It is a sequence diagram which shows operation | movement of the portable terminal with a function restriction | limiting of the 2nd Embodiment of this invention. It is a flowchart which shows operation | movement of the function restriction | limiting part of the portable terminal with a function restriction | limiting of the 2nd Embodiment of this invention. It is a table | surface which shows the state of the display part and operation part of a portable terminal with a function restriction | limiting in the function restriction | limiting state and restriction | limiting release state of the 2nd Embodiment of this invention. It is a figure which shows schematic structure of the function restriction | limiting system of the 3rd Embodiment of this invention. It is a sequence diagram which shows operation | movement of the function restriction | limiting system of the 3rd Embodiment of this invention. It is a sequence diagram which shows operation | movement of the portable terminal with a function restriction | limiting of the 3rd Embodiment of this invention. It is a flowchart which shows operation | movement of the function restriction | limiting part of the portable terminal with a function restriction | limiting of the 3rd Embodiment of this invention.

(First embodiment)
A first embodiment of the present invention will be described. FIG. 1 is a block diagram showing the configuration of the function restriction device according to the first embodiment of the present invention. FIG. 2 is a block diagram illustrating a configuration of the mobile terminal according to the present embodiment. FIG. 3 is a block diagram showing the configuration of the function restriction system of this embodiment.

  The function restriction system 1 of the present embodiment includes a function restriction device 10 and a mobile terminal 20. In the function restriction system 1, the function restriction device 10 transmits attention information to the mobile terminal 20. And the portable terminal 20 restrict | limits one part or all part of an own function based on the received attention information.

  The function restriction device 10 includes an approach detection unit 11 and an information transmission unit 12.

  The approach detection unit 11 detects the approach of the moving object by inputting a predetermined signal such as light or sound from the moving object, and outputs moving object approach information indicating the presence or absence of the approach. The “moving object” is an object that is a target to call attention to a user of the mobile terminal 20 (hereinafter simply referred to as “user”) such as a train or a car. In addition, the signal used in order to detect the approach of a moving object is not limited.

  The information transmission unit is installed in a predetermined installation area and transmits attention information including moving object approach information to the predetermined notification area.

  The “installation area” is preferably an area in the vicinity of the path of the moving object (hereinafter simply referred to as “the path”). The installation area is a place where attention should be paid to the user, for example, on the platform when the moving object is a train, around the railroad crossing, and around the road when the moving object is an automobile.

  The “report area” is a geographical range to which attention information is transmitted. In the present invention, in order to avoid instability of operation due to the positional relationship between the user's location and the information transmission unit 12, a notification area is set. For this reason, the information transmission unit 12 may use a signal for which the reachable range is relatively fixed, such as visible light, for the attention information, instead of a signal that is difficult to set the reachable range, such as radio waves.

  The mobile terminal device 20 includes an information reception unit 21, a function restriction unit 22, and a function execution unit 23.

  The information receiving unit 21 receives attention information from the function restriction device 10.

  The function execution unit 23 executes a predetermined function. The “function” is a function that the mobile terminal 20 has, such as a character input function, a display function, a voice output function, a communication function, an application software execution function, and the like. These designated functions among the functions of the mobile terminal 20 are subject to function restriction (hereinafter referred to as “restriction target functions”).

  In the function restriction unit 22, a restriction target function is set in advance. Then, when the information receiving unit 21 receives the caution information, the function limiting unit 22 makes a predetermined determination, and outputs a control signal to the function execution unit 23 based on the determination result. Restrict the execution of the restricted function.

  As described above, the function restriction device 10 according to the first embodiment detects the approach of a moving object, and the information transmission unit 12 installed in a predetermined installation area transmits attention information to the predetermined notification area. Therefore, the mobile terminal 20 at the position where the attention information is to be received surely receives the attention signal, and the mobile terminal 20 at the position where it is not necessary to receive the attention information does not receive the attention signal. Therefore, the function restriction device 10 can perform a danger notification to the mobile terminal 20 with high reliability.

  Moreover, since the portable terminal 20 of 1st Embodiment can determine whether it is the position which should receive attention information by the presence or absence of reception of attention information, it should perform a function restriction | limiting reliably as needed. Can do.

  In order to specify the restriction target function, restriction content information indicating the content of the restriction target function may be registered in a predetermined storage unit (not shown) in the mobile terminal 20. In that case, the function restriction unit 22 may output a restriction signal based on the restriction content information read from the storage means.

  In order to prevent the user from approaching the course, it is also effective to set the installation area away from the course by a predetermined distance. In such a case, the attention information may include position information of the information transmission unit. The position information may be set as internal information of the information transmission unit 12.

  When the attention information includes position information, the function restriction unit 22 of the mobile terminal 20 determines whether to perform function restriction using both the moving object approach information and the position information included in the attention information. Good. In this case, even when the function restriction unit 22 is notified of the approach of the moving object by the moving object approach information, the function restricting unit 22 only calls the user depending on the position information, and responds to the degree of risk such that the function restriction is not performed. Control is possible.

  Furthermore, the information transmission unit 12 of the function restriction device 10 may include a visible light emitting unit for illumination, and may transmit the attention information to the visible light for illumination to the portable terminal 20. In this case, it is not necessary to provide the information transmission unit 12 only for transmitting the attention information, and the information transmission device 12 can also serve as the lighting device.

When the information transmission unit 12 superimposes and transmits the attention information on the visible light for illumination, the information reception unit 21 of the mobile terminal 20 may include a visible light reception unit (not illustrated). Then, the information receiving unit 21 extracts attention information from the received visible light for illumination. The control of the function restriction unit 22 after extracting the attention information is as described above.
(Second Embodiment)
Next, as an example in the case where the present invention is applied to a specific facility, a function restriction system that alerts a user of a portable terminal and restricts the function of the portable terminal, which is located on the platform of a railway station, is shown.

  FIG. 4 shows a schematic configuration of the function restriction system 2 according to the second embodiment of the present invention. The function restriction system 2 includes a train approach detection unit 101, visible light communication units 102A, 102B, and 102C, and portable terminals with restriction functions 200A, 200B, and 200C.

  The train approach detection unit 101 detects the approach of the train to the platform, and generates train approach information 103 indicating whether the train has entered or has not entered. The train approach detection unit 101 and each of the visible light communication units 102A, 102B, and 102C are connected by a predetermined communication means. The train approach detection unit 101 transmits the train approach information 103 to the visible light communication units 102A, 102B, and 102C at predetermined time intervals.

  The visible light communication units 102 </ b> A, 102 </ b> B, and 102 </ b> C receive the train approach information 103 from the train approach detection unit 101. In the visible light communication units 102A, 102B, and 102C, the respective installation positions are set as position information 104A, 104B, and 104C. The installation position is, for example, the end of the home, the center of the home, or the like. And visible light communication part 102A, 102B, 102C superimposes position information 104A, 104B, 104C and the train approach information 103 from the train approach detection part 101 on visible light, and periodically radiates it outside. In the present embodiment, the visible light emitted from the visible light communication units 102A, 102B, and 102C also serves as home illumination light.

  Visible light from the visible light communication units 102A, 102B, and 102C is received by the portable terminals 200A, 200B, and 200C with restriction functions.

  Note that the correspondence between the visible light communication units 102A, 102B, and 102C and the mobile terminals with restriction functions 200A, 200B, and 200C in FIG. 4 is an example. Of course, when the mobile terminals with restriction functions 200A, 200B, and 200C move, visible light from the other visible light communication units 102A, 102B, and 102C may be received.

  The restricted function-equipped mobile terminals 200A, 200B, and 200C include at least “essential functions” in the system described below. However, each of the mobile terminals with restriction functions 200A, 200B, and 200C does not need to have completely the same function, and may have functions other than the essential functions. Hereinafter, a portable terminal with a restriction function having only essential functions is referred to as a “mobile terminal with restriction function 200”. In the present embodiment, it goes without saying that all of the restricted function mobile terminals 200A, 200B, and 200C may be the restricted function mobile terminal 200.

  FIG. 5 is a block diagram illustrating a configuration of the portable terminal 200 with a restriction function.

  The portable terminal 200 with a restriction function includes a visible light receiving unit 201, a function restriction unit 202, a display unit 203, an operation unit 204, and a walking state detection unit 205.

  The visible light receiving unit 201 receives the position information 104A, 104B, 104C and the train entry information 103 transmitted from the visible light communication units 102A, 102B, 102C, and outputs them to the function restriction unit 202.

  The walking state detection unit 205 determines whether or not the restricted function mobile terminal 200 is moving, that is, whether or not the user is walking, by detecting vibration of the restricted function portable terminal 200 or the like. To do. Then, the walking state detection unit 205 outputs walking state information indicating whether or not the user is walking to the function restriction unit 202.

  The function restriction unit 202 determines whether or not to perform the function restriction of the portable terminal 200 with a restriction function based on the train approach information 103 from the visible light reception unit 201 and the walking state information from the walking state detection unit 205. decide. Then, the function restriction unit 202 outputs, to the display unit 203 and the operation unit 204, function restriction information for instructing function restriction of the portable terminal with restriction function 200 or restriction release information for instructing release of the function restriction.

  If there is no input of the train entry information 103 for a certain period of time from the visible light receiving units 102A, 102B, and 102C, the function restriction unit 202 indicates that the user of the portable terminal 200 with the restriction function is not at any position on the home. to decide. In this case, the function restriction unit 202 transmits restriction release information to the display unit 203 and the operation unit 204.

  Based on the function restriction information or restriction release information from the function restriction unit 202, the display unit 203 determines whether or not the restricted function-equipped mobile terminal 200 is function restricted. Then, the display unit 203 displays a warning to the effect that the function is being restricted to the user of the portable terminal 200 with a restricted function. When the function restriction is released, the display unit 203 deletes the warning display or displays that the restriction is being released. The warning display method is not limited to the screen display. In other words, the warning may be performed using voice or vibration by a vibrator.

  When receiving the function restriction information from the function restriction unit 202, the operation unit 204 restricts an input function for accepting an operation from the user. When the operation unit 204 receives the restriction release information from the function restriction unit 202, the operation unit 204 releases the function restriction. Specifically, the restriction of the input function in the operation unit 204 means an operation such as ignoring the operation from the user.

Note that the function subject to function restriction is not limited to the function for operating the restricted function mobile terminal 200. For example, functions other than the functions of the operation unit 204 such as a display function and a communication function by the display unit 203 may be limited.
(Operation of Second Embodiment)
FIG. 6 is a sequence diagram illustrating an example of information exchange between the train approach detection unit 101, the visible light communication unit 102A, and the portable terminal 200 with a restriction function in the function restriction system 2. The same applies to the exchange of information among the train approach detection unit 101, the visible light communication unit 102B or the visible light communication unit 102C, and the portable terminal 200 with a restriction function.

  The train approach detection unit 101 detects the approach of the train to the platform at a constant cycle, and transmits the train approach information 103 to the visible light communication unit 102A (step S10).

  In this embodiment, the train approach information 103 is binary information that simply means “a train is approaching” or “a train is not approaching”, but the train approach information 103 is limited to binary information. Not. For example, when a limited express train passes at high speed, especially when the danger is high, or when performing a function restriction on the mobile terminal 200 with a restriction function according to the distance between the train and the platform, or providing a stage for a warning display, If necessary, the train approach information 103 may be information of three or more values.

  Next, the visible light communication unit 102A superimposes the train approach information 103 received in S10 and the position information 104A of the visible light communication unit 102A on the visible light of the illumination, and transmits it to the terminal 200 with the restriction function by spatial transmission ( Step S11).

  In this embodiment, the position information is binary information that means “the end of the home” and “the center of the home”, but the position information is not limited to binary information. For example, the position information may be information of three or more values as necessary, for example, when function restriction is performed on the portable terminal 200 with a restriction function according to the position in the home or when a stage is provided for warning display.

  And the terminal 200 with a limiting function is based on the train approach information 103 and the position information 109 received in S11, and the walking state information acquired by the traveling state detection unit 205 in the mobile terminal 200 with a limiting function. A function restriction process of the attached mobile terminal 200 is performed (step S12). Information to be acquired and processing to be executed in the portable terminal 200 with the restriction function will be described next with reference to FIG.

  FIG. 7 is a sequence diagram illustrating processing of the portable terminal 200 with the restriction function after receiving visible light from the visible light communication unit 102A. The same applies to the processing of the portable terminal 200 with the restriction function after receiving visible light from the visible light communication unit 102B or the visible light communication unit 102C.

  First, the walking state detection unit 205 determines whether or not the user of the mobile terminal with restriction function 200 is walking by detecting vibrations of the mobile terminal with restriction function 200 and the like, and the walking state information is set to a certain period. Is transmitted to the function restriction unit 202 (step S20).

  Moreover, the visible light receiving part 201 will transmit such information to the function restriction | limiting part 202, if the train approach information 103 and the positional information 104A are received by visible light communication (step S21). In addition, the order of the process of S20 and the process of S21 is arbitrary.

  Based on the walking state information received from the walking state detection unit 205 in S20, the train entry information 103 received from the visible light receiving unit 201 in S21, and the position information 104A, the function restriction unit 202 is connected to the restriction function portable terminal 200. Decide whether to execute or release the function restriction. Then, the function restriction unit 202 transmits function restriction information or restriction release information to the display unit 203 and the operation unit 204 (steps S22 and S23). A method for determining whether to execute or cancel the function restriction will be described later.

  When the display unit 203 and the operation unit 204 receive the function restriction information or the restriction release information from the function restriction unit 202 in S22 and S23, respectively, the function restriction or warning display of the mobile terminal or the release operation thereof is performed according to the received information. I do. The function restriction, warning display, and release thereof will be described with reference to FIG.

  FIG. 8 is a flowchart showing the function restriction operation of the function restriction unit 202.

  First, the function restriction unit 202 determines whether the user of the portable terminal with restriction function 200 is currently at the end of the home based on the position information 104A received from the visible light receiving unit 201 (step S30).

  When it is determined that the user is at the end of the platform (S30: Yes), it is determined whether the train is approaching based on the train approach information 103 received from the visible light receiving unit 201 (step S31). ).

  When it is determined that the train is approaching (S31: Yes), it is determined that the function restriction of the portable terminal 200 with the restriction function based on the train approach detection is necessary, and the function restriction information is transmitted to the display unit 203 and the operation unit 204. (Step S32).

  When it is determined in S30 that the user is not at the end of the home (S30: No), or when it is determined in S31 that the train is not approaching (S31: No), from the walking state detection unit 205 Based on the walking state information, it is determined whether or not the user is walking (step S33).

  When it is determined that the user is walking (S33: Yes), it is determined that the function restriction of the portable terminal 200 with the restriction function based on the walking state detection is necessary, and the function restriction information is transmitted to the display unit 203 and the operation unit 204. (Step S34). Thus, when the user is not at the end of the platform or when the train is not approaching, but the user is at the end of the platform and the user is walking Function restriction is performed.

  When it is determined that the user is not walking (S33: No), it is determined that the function restriction of the portable terminal 200 with the restriction function is unnecessary, and restriction release information is transmitted to the display unit 203 and the operation unit 204 (step S35). . As described above, when the user is not walking, the function restriction is released unless the user is at the end of the platform and the train is approaching.

  FIG. 9 is a table showing the states of the display unit 203 and the terminal operation unit 204 in the function restriction state and restriction release state of the present embodiment.

  As shown in FIG. 9, when the function restriction by the train approach detection is executed by the function restriction unit 202, the display unit 203 displays a warning that the train is approaching the screen of the restriction function-equipped mobile terminal 200. . The operation unit 204 controls the operation unit 204 so as to ignore an operation on the portable terminal 200 with the restriction function.

  When the function restriction based on the walking state detection is executed by the function restriction unit 202, the display unit 203 performs the function restriction of the portable terminal 200 with the restriction function because it is walking on the screen of the portable terminal 200 with the restriction function. A message is displayed. The operation unit 204 controls the operation unit 204 so as to ignore an operation on the portable terminal 200 with the restriction function.

  When the function restriction unit 202 cancels the function restriction, the display unit 203 and the operation unit 204 cancel the function restriction operation and release the function restriction of the portable terminal 200 with the restriction function.

  As described above, in the function restriction system of the second embodiment, the visible light communication unit transmits the train approach information and the position information to the mobile terminal using visible light. Since these pieces of information are transmitted using visible light, the reach of the information does not become uncertain like radio waves, and the portable terminal at the position where the information should be received reliably receives the information. The mobile terminal in a position where it is not necessary to receive the information does not receive information. Furthermore, the mobile terminal can also make a determination using position information. Therefore, the portable terminal of this embodiment does not perform unnecessary function restrictions. Therefore, the function restriction system can restrict its own function with high reliability while ensuring convenience.

  Furthermore, since the mobile terminal of this embodiment detects whether or not the mobile terminal is moving, the walking state of the user can also be used as a material for determining whether or not to limit the function of the mobile terminal. . Therefore, the portable terminal of the present embodiment can prevent unnecessary function restriction such as not restricting the function of the portable terminal when the user is stopped. Therefore, in the function restriction system of the present embodiment, it is possible to perform function restriction necessary for the user while ensuring convenience.

The process in FIG. 8 is an example of the process of the function restriction unit 202. Using the approach information, the walking state information, and the position information, the function restriction and restriction release of the restriction function portable terminal 200 may be performed by an algorithm different from that in FIG. For example, when the user stays at the end of the platform, the algorithm in FIG. 8 does not limit the function when the train is not approaching. However, function restriction or warning may be performed even when the train is not approaching.
(Third embodiment)
The present invention can be applied not only to railways but also to roads. As an example of the case where the present invention is applied to a specific facility, a function restriction system for alerting a user of a portable terminal and restricting the function of the portable terminal located near a pedestrian crossing with a pedestrian traffic light Show.

  FIG. 10 shows a schematic configuration of the function restriction system 3 according to the third embodiment of the present invention. The function restriction system 3 includes a signal display state detection unit 301, visible light communication units 102A, 102B, and 102C, and portable terminals 200A, 200B, and 200C with restriction functions.

  The signal display state detection unit 301 detects a display state indicating an instruction to a pedestrian by a pedestrian traffic light (hereinafter simply referred to as “traffic light”), and generates display state information 302. Specifically, the display state information 302 indicates whether the display state of the traffic light is “blue”, “blue blinking”, or “red”. The signal display state detection unit 301 and each of the visible light communication units 102A, 102B, and 102C are connected by a predetermined communication unit. The signal display state detection unit 301 transmits the display state information 302 to the visible light communication units 102A, 102B, and 102C at a predetermined time interval. The display state information 302 is not limited to the information indicating the above three states. The display state information 302 may be generated according to the actual display state type of the traffic light.

  The visible light communication units 102 </ b> A, 102 </ b> B, 102 </ b> C receive the display state information 302 from the signal display state detection unit 301. In the visible light communication units 102A, 102B, and 102C, the respective installation positions are set as position information 104A, 104B, and 104C. The installation position is, for example, binary information meaning “immediately before a pedestrian crossing” and “center of a sidewalk”, but the position information is not limited to binary information. The position information can be set as appropriate according to the actual conditions of the sidewalk and road.

  The visible light communication units 102A, 102B, and 102C superimpose the position information 104A, 104B, and 104C and the display state information 302 from the signal display state detection unit 301 on the visible light and periodically radiate them to the outside. In the present embodiment, the visible light emitted from the visible light communication units 102A, 102B, and 102C may also serve as a display light for a traffic light for pedestrians and illumination light for a sidewalk. Alternatively, a dedicated information transmitter may be used.

Since the portable terminals 200A, 200B, and 200C with restriction functions are the same as those in the second embodiment, description thereof is omitted. However, the visible light receiving unit 201 receives not the train approach information 103 but the display state information 302 from the visible light communication units 102A, 102B, and 102C.
(Operation of Third Embodiment)
FIG. 11 is a sequence diagram illustrating an example of information exchange between the signal display state detection unit 301, the visible light communication unit 102A, and the portable terminal 200 with a restriction function in the function restriction system 3. The same applies to the exchange of information among the signal display state detection unit 301, the visible light communication unit 102B or the visible light communication unit 102C, and the portable terminal 200 with the restriction function.

  The signal display state detection unit 301 displays, to the visible light communication unit 102A, display state information 302 indicating whether the display state of the pedestrian traffic light is “blue”, “blue blinking”, or “red” at a fixed period. Transmit (step S40).

  Next, the visible light communication unit 102A superimposes the display state information 302 received in S10 and the position information 104A of the visible light communication unit 102A on the visible light of the illumination, and transmits it to the terminal 200 with the restriction function by spatial transmission ( Step S41).

  And the terminal 200 with a restriction function is based on the display state information 302 and the position information 109 received in S41, and the state information during walking acquired by the running state detection unit 205 in the portable terminal 200 with a restriction function. A function restriction process of the attached mobile terminal 200 is performed (step S42). The information to be acquired and the processing to be performed in the portable terminal 200 with the restriction function will be described next with reference to FIG.

  FIG. 12 is a sequence diagram illustrating processing of the portable terminal 200 with the restriction function after receiving visible light from the visible light communication unit 102A. The same applies to the processing of the portable terminal 200 with the restriction function after receiving visible light from the visible light communication unit 102B or the visible light communication unit 102C.

  First, the walking state detection unit 205 determines whether or not the user of the mobile terminal with restriction function 200 is walking by detecting vibrations of the mobile terminal with restriction function 200 and the like, and the walking state information is set to a certain period. Is transmitted to the function restriction unit 202 (step S50).

  Further, when the visible light receiving unit 201 receives the display state information 302 and the position information 104A through visible light communication, the visible light receiving unit 201 transmits these pieces of information to the function limiting unit 202 (step S51). In addition, the order of the process of S50 and the process of S51 is arbitrary.

  Based on the walking state information received from the walking state detecting unit 205 in S50, the display state information 302 received from the visible light receiving unit 201 in S51, and the position information 104A, the function restricting unit 202 includes the restriction function portable terminal 200. Decide whether to execute or release the function restriction. Then, the function restriction unit 202 transmits function restriction information or restriction release information to the display unit 203 and the operation unit 204 (steps S52 and S53). A method for determining whether to execute or cancel the function restriction will be described later.

  When the display unit 203 and the operation unit 204 receive the function restriction information or the restriction release information from the function restriction unit 202 in S52 and S53, respectively, the function restriction or warning display of the mobile terminal, or the release operation thereof according to the received information I do. The function restriction, warning display, and release thereof will be described with reference to FIG.

  FIG. 13 is a flowchart showing the function restriction operation of the function restriction unit 202.

  First, the function restriction unit 202 determines whether the user of the portable terminal 200 with a restriction function is immediately before a pedestrian crossing based on the position information 104A received from the visible light reception unit 201 (step S60).

  When it is determined that the user is closest to the pedestrian crossing (S60: Yes), the display state of the traffic light is determined based on the display state information 302 received from the visible light receiving unit 201 (step S61).

  When it is determined in S61 that the traffic light does not display “blue” (S61: No), it is determined whether the user is walking based on the walking state information from the walking state detection unit 205 ( Step S62).

  When it is determined that the user is walking (S62: Yes), it is determined that the function restriction of the portable terminal 200 with the restriction function based on the walking state detection is necessary, and the function restriction information is transmitted to the display unit 203 and the operation unit 204. (Step S63). Thus, when the user is walking just before the pedestrian crossing and the traffic light is not “blue”, the function is restricted.

  When it is determined that the traffic light is displaying “blue” (S61: Yes) and when it is determined that the user is not walking (S62: No), the function restriction of the portable terminal 200 with the restriction function is It judges that it is unnecessary, and transmits restriction release information to the display unit 203 and the operation unit 204 (step S64). However, in order to call attention to the user, the display unit 203 displays a warning. For this purpose, the function restriction unit 202 instructs the display unit 203 to display a caution.

  When it is determined in S60 that the user is not in the immediate vicinity of the pedestrian crossing (S60: No), it is determined that the function restriction of the portable terminal 200 with restriction function is necessary, and the function restriction information is sent to the display unit 203 and the operation unit 204. Is transmitted (step S65).

  As described above, in the function restriction system according to the third embodiment, the visible light communication unit transmits the signal display state information and the position information to the portable terminal using visible light. Since these pieces of information are transmitted using visible light, the reach of the information does not become uncertain like radio waves, and the portable terminal at the position where the information should be received reliably receives the information. The mobile terminal in a position where it is not necessary to receive the information does not receive information. Furthermore, the mobile terminal can also make a determination using position information. Therefore, the portable terminal of this embodiment does not perform unnecessary function restrictions. Therefore, the function restriction system can restrict its own function with high reliability while ensuring convenience.

  Furthermore, since the mobile terminal of this embodiment detects whether or not the mobile terminal is moving, the walking state of the user can also be used as a material for determining whether or not to limit the function of the mobile terminal. . Therefore, the portable terminal of the present embodiment can prevent unnecessary function restriction such as not restricting the function of the portable terminal when the user is stopped. Therefore, in the function restriction system of the present embodiment, it is possible to perform function restriction necessary for the user while ensuring convenience.

  The process of FIG. 13 is an example of the process of the function restriction unit 202. Using the display state information, the walking state information, and the position information, the function restriction, the caution display, and the restriction release of the restriction function-equipped mobile terminal 200 may be performed using an algorithm different from that in FIG.

  Note that the subject that performs the function restriction and restriction release control by the function restriction unit 201 shown in the flowcharts of FIGS. 8 and 10 is not limited. That is, the control may be executed by predetermined hardware provided in the portable terminal 200 with a restriction function. Alternatively, the portable terminal 200 with a restriction function includes a CPU (Central Processing Unit) (not shown), and the CPU reads and executes a function restriction control program from a predetermined storage unit (not shown), thereby performing control. Also good.

  The program may be stored in a semiconductor storage device such as a ROM (Read Only Memory), a RAM (Random Access Memory), or a flash memory, or a non-transitory medium such as an optical disk, a magnetic disk, or a magneto-optical disk. .

  Each of the above embodiments can be combined with other embodiments.

A part or all of the above-described embodiment can be described as in the following supplementary notes, but is not limited thereto.
(Appendix 1)
An approach detection means for detecting the approach of a moving object and outputting moving object approach information indicating the presence or absence of the approach;
Information transmitting means installed in a predetermined installation area and transmitting attention information including the moving object approach information to a predetermined notification area;
A function restriction device comprising:
(Appendix 2)
Display detection means for detecting a display state of a traffic light indicating an instruction to a pedestrian and outputting display state information indicating the display state;
Information transmitting means installed in a predetermined installation area and transmitting attention information including the display state information to a predetermined notification area;
A function restriction device comprising:
(Appendix 3)
The function restriction device according to appendix 1 or 2, wherein the caution information includes position information of the information transmission means.
(Appendix 4)
The function restriction according to any one of appendices 1 to 3, wherein the information transmission unit includes a visible light radiating unit for illumination, and includes the caution information superimposed on the visible light for illumination. apparatus.
(Appendix 5)
Information receiving means for receiving the attention information from the function restriction device according to any one of appendices 1 to 3,
Function execution means for executing a predetermined function;
A function limiting unit that performs a predetermined determination when the information receiving unit receives the attention information, and stops execution of a predetermined restricted function included in the function based on a result of the determination;
A portable terminal device comprising:
(Appendix 6)
Including visible light receiving means for receiving the visible light for illumination from the function restriction device according to appendix 4, and information receiving means for extracting the attention information from the received visible light for illumination;
Function execution means for executing a predetermined function;
A function limiting unit that performs a predetermined determination when the information receiving unit receives the attention information, and stops execution of a predetermined restricted function included in the function based on a result of the determination;
A portable terminal device comprising:
(Appendix 7)
Provided with a moving state detecting means for detecting whether or not moving,
The mobile terminal device according to appendix 5 or 6, wherein the function restriction unit stops execution of the restricted function when the movement state detection unit detects that the movement state detection unit is moving.
(Appendix 8)
Detection means for outputting moving object approach information indicating whether or not a moving object is approaching or display state information indicating a display state of a traffic light indicating an instruction to a pedestrian, and the moving object approach information installed in a predetermined installation area A function restriction device comprising information transmitting means for transmitting caution information including a predetermined notification area;
An information receiving means for receiving the attention information from the function restriction device, a function executing means for executing a predetermined function, and a predetermined determination when the information receiving means receives the attention information, A portable terminal device comprising function restriction means for stopping execution of a predetermined restricted function included in the function,
The function restriction system characterized by including.
(Appendix 9)
The information transmitting means includes a means for emitting illumination visible light, and transmits the attention information superimposed on the illumination visible light,
The supplementary note 8 is characterized in that the information receiving means includes visible light receiving means for receiving the visible light for illumination from the function restriction device, and extracts the attention information from the received visible light for illumination. Function restriction system.
(Appendix 10)
Output moving object approach information indicating whether or not a moving object is approaching or display state information indicating a display state of a traffic light indicating an instruction to a pedestrian,
Send attention information including the moving object approach information or display state information from a predetermined installation area to a predetermined notification area,
The caution information is received by a mobile terminal device that executes a predetermined function,
A function restriction method comprising: making a predetermined determination when the portable terminal device receives the attention information, and stopping execution of a predetermined restricted function included in the function based on a result of the determination.
(Appendix 11)
Function execution means for executing a predetermined function, moving object approach information indicating whether or not a moving object is approaching or display state information indicating a display state of a traffic light indicating an instruction to a pedestrian is output, and the moving object approach information or display is displayed. A computer provided in a portable terminal device including information receiving means for receiving the attention information from a function restriction device for transmitting attention information including state information, and function execution means for executing a predetermined function;
Function restriction for functioning as function restriction means for making a predetermined determination when the information receiving means receives the attention information and stopping execution of a predetermined restricted function included in the function based on the result of the determination program.

  The present invention, like the railway station departure / arrival platform described in the second embodiment, is concerned about the risk of contact between a bus terminal, a landing place for a transportation means such as a boarding place, and a moving vehicle and a user. It can also be applied to railroad crossings, roads, pedestrian crossings, etc.

103 Train entry information 104A, 104B, 104C Position information 302 Display status information

Claims (10)

An approach detection means for detecting the approach of a moving object and outputting moving object approach information indicating the presence or absence of the approach;
Information transmitting means installed in a predetermined installation area and transmitting attention information including the moving object approach information to a predetermined notification area;
A function restriction device comprising: Display detection means for detecting a display state of a traffic light indicating an instruction to a pedestrian and outputting display state information indicating the display state;
Information transmitting means installed in a predetermined installation area and transmitting attention information including the display state information to a predetermined notification area;
A function restriction device comprising: The function restriction device according to claim 1, wherein the caution information includes position information of the information transmission unit. The function according to any one of claims 1 to 3, wherein the information transmitting means includes a visible light radiating means for illumination, and includes the attention information superimposed on the visible light for illumination. Restriction device. Information receiving means for receiving the attention information from the function restriction device according to any one of claims 1 to 3,
Function execution means for executing a predetermined function;
A function limiting unit that performs a predetermined determination when the information receiving unit receives the attention information, and stops execution of a predetermined restricted function included in the function based on a result of the determination;
A portable terminal device comprising: An information receiving means for receiving the visible light for illumination from the function limiting device according to claim 4, and extracting the attention information from the received visible light for illumination;
Function execution means for executing a predetermined function;
A function limiting unit that performs a predetermined determination when the information receiving unit receives the attention information, and stops execution of a predetermined restricted function included in the function based on a result of the determination;
A portable terminal device comprising: Provided with a moving state detecting means for detecting whether or not moving,
The portable terminal device according to claim 5 or 6, wherein the function restriction unit stops the execution of the restricted function when the movement state detection unit detects that the movement state detection unit is moving. Detection means for outputting moving object approach information indicating whether or not a moving object is approaching or display state information indicating a display state of a traffic light indicating an instruction to a pedestrian, and the moving object approach information installed in a predetermined installation area A function restriction device comprising information transmitting means for transmitting caution information including a predetermined notification area;
An information receiving means for receiving the attention information from the function restriction device, a function executing means for executing a predetermined function, and a predetermined determination when the information receiving means receives the attention information, A portable terminal device comprising function restriction means for stopping execution of a predetermined restricted function included in the function,
The function restriction system characterized by including. Output moving object approach information indicating whether or not a moving object is approaching or display state information indicating a display state of a traffic light indicating an instruction to a pedestrian,
Send attention information including the moving object approach information or display state information from a predetermined installation area to a predetermined notification area,
The caution information is received by a mobile terminal device that executes a predetermined function,
A function restriction method comprising: making a predetermined determination when the portable terminal device receives the attention information, and stopping execution of a predetermined restricted function included in the function based on a result of the determination. Function execution means for executing a predetermined function, moving object approach information indicating whether or not a moving object is approaching or display state information indicating a display state of a traffic light indicating an instruction to a pedestrian is output, and the moving object approach information or display is displayed. A computer provided in a portable terminal device including information receiving means for receiving the attention information from a function restriction device for transmitting attention information including state information, and function execution means for executing a predetermined function;
Function restriction for functioning as function restriction means for making a predetermined determination when the information receiving means receives the attention information and stopping execution of a predetermined restricted function included in the function based on the result of the determination program.

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