JP2016050845A - Personal authentication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a plurality of persons to be authenticated at the same time by means of active drive of a pressure sensor with a transistor.SOLUTION: In a personal authentication system, foot pressure information about a registered person is previously acquired and stored in a storage unit. When a subject person to be authenticated gets on a sensor sheet, the foot pressure of the subject person is detected, and pressure information is outputted. The detected pressure information is compared with the pressure information of the registered person stored in the storage unit, and determination is made as to whether the subject person is the registered person. The sensor sheet detects pressure information about a plurality of subject persons at the same time using a plurality of pressure sensors active-driven by a transistor, so that the plurality of persons present on the sensor sheet can be authenticated at the same time.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a system for performing personal authentication by detecting pressure by a foot.

  Japanese Patent Application Laid-Open No. H10-228707 describes a method for performing individual recognition by detecting a pressure pattern of a person's shoe sole. In the technique of this document, the pressure of a person's shoe sole is detected by a pressure sensor, but there is no detailed description of the configuration or driving method of the pressure sensor.

  On the other hand, Patent Document 2 describes a game device in which a player performs an operation of stepping on a step with a foot, and the touch position is detected by a pressure sensor. In this game apparatus, a passive matrix driving pressure sensor using X and Y decoders is used.

JP 2007-219974 A Japanese Patent No. 3845233

  In the case of a conventional segment drive or passive matrix drive pressure sensor, the number of sensors that can be arranged is generally about 1000, and the number of sensors is limited. Also, high-speed sensing becomes more difficult as the number of sensors increases.

  Therefore, when performing personal authentication from the pressure of the sole using a conventional pressure sensor as in Patent Document 1, since the number of sensors is small and data output is slow, authentication of a large number of persons or moving persons is required. Is difficult to do. In addition, in a game device such as Patent Document 2, it is difficult to discriminate individual players when a plurality of players are simultaneously playing on one stage.

  The main object of the present invention is to enable individual authentication of a plurality of persons at the same time by actively driving a pressure sensor with a transistor.

  In one aspect of the present invention, the personal authentication system detects a pressure applied by a subject's foot riding on the sensor sheet and outputs pressure information and pressure information of a registered person registered in advance. Determining means for determining whether or not the target person is a registered person based on the storage unit for storing, the pressure information output from the sensor sheet, and the pressure information stored in the storage unit; Output means for outputting a determination result by the determination means, wherein the sensor sheet simultaneously detects pressure information about a plurality of subjects by a plurality of pressure sensors actively driven by transistors. To do.

  In the personal authentication system, foot pressure information is acquired in advance and stored in a storage unit for a registered person. When the subject person for personal authentication gets on the sensor sheet, the pressure of the subject's foot is detected and pressure information is output. The detected pressure information is compared with the pressure information of the registered person stored in the storage unit, and it is determined whether or not the target person is a registered person. Here, the sensor sheet can simultaneously detect pressure information about a plurality of subjects by a plurality of pressure sensors actively driven by transistors. Therefore, it is possible to simultaneously perform authentication processing for a plurality of subjects existing on the sensor sheet.

  One aspect of the personal authentication system includes a warning unit that issues a warning indicating that the target person is not a registered person when the determination unit determines that the target person is not a registered person. As a result, attention can be given to an unregistered person.

  In a preferred example, the sensor plate includes a pressure sensor layer including the transistor and the pressure sensor, a display layer, and a pair of protective layers sandwiching the pressure sensor layer and the display layer, and the warning unit includes , A warning is displayed on the display layer.

  In another preferred example, the warning means is an illuminating device that is disposed above the sensor plate and emits light that illuminates a subject who is determined not to be a registered person.

  In another preferred example, the warning means is a directional speaker device that is arranged above the sensor plate and emits a warning sound for a subject who is determined not to be a registered person.

  Another aspect of the personal authentication system includes a display device, and the output unit displays information on the subject determined to be a registered person by the determination unit on the display device. In this aspect, when the target person is a registered person, information on the person is displayed on the display device.

  In another aspect of the personal authentication system, the pressure information includes at least a pressure distribution of the subject's foot.

It is a figure showing typically the gate system concerning a 1st embodiment. It is a figure which shows the layer structure of a sensor sheet. It is a block diagram which shows the function structure of a gate system. It is a flowchart of the process by a gate system. It is a figure which shows typically the game device which concerns on 2nd Embodiment. It is a block diagram which shows the function structure of a game device. It is a flowchart of the process by a game device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
In the first embodiment, the personal authentication system of the present invention is applied to a gate system. FIG. 1 shows a gate system 100 according to the first embodiment. The gate system 100 is a device for personal identification and identification of passers-by, and is installed in a place where a large number of people gather and where gate management is required, such as an amusement park, event venue, concert hall, sports stadium, etc. . Note that the gate system 100 can be installed indoors or temporarily installed outdoors.

  As illustrated, the gate system 100 includes a sensor sheet 10, a lighting device 20, a speaker 30, and a counter 35.

  The sensor sheet 10 has a width that allows a plurality of passers-by to walk at the same time and a length that allows one passer-by to finish crossing by walking several steps. In the example of FIG. 1, the passerby passes on the sensor sheet 10 placed on the ground in a plurality of directions, and in the example of FIG. 1, the passerby passes in the right direction or the left direction.

  FIG. 2 shows the layer structure of the sensor sheet 10. The sensor sheet 10 includes a protective layer 11, a display layer 12, a pressure sensor layer 13, and a protective layer 14 from the upper side in the drawing. The sensor sheet 10 is arranged on the floor or the ground in the state shown in FIG. 2, and the protective layer 14 is in contact with the floor or the ground. The protective layer 14 is a layer for protecting the back surface of the sensor sheet 10 and is formed of, for example, glass or acrylic. The protective layer 14 may be omitted depending on the floor material. Further, the display layer 22 and the pressure sensor layer 23 may be interchanged, and the protective layer 21, the pressure sensor layer 23, the display layer 22, and the protective layer 24 may be arranged in this order from the upper side in the drawing.

  The pressure sensor layer 13 is configured such that a plurality of pressure sensors are arranged on the entire surface of the sensor sheet 10 and are actively driven by an OTFT (Organic Thin Film Transistor). By using active driving using OTFT, a large number of sensors can be arranged over the entire surface of the sensor sheet 10 to achieve high definition, and high speed sensing can be performed by driving a large number of sensors at high speed.

  The display layer 12 has a function of warning an unregistered passerby. Specifically, the warning display 17 for the unregistered passerby is performed by causing the display layer 12 to emit light or changing the color in the area of the footstep of the unregistered passerby. The area | region of the warning display 17 moves with the movement by a walker's walk. As the display layer 12, for example, a liquid crystal display having a backlight, an EL display, an LED, or the like can be used.

  The protective layer 11 is a layer for protecting the surface of the sensor sheet 10 and is formed of glass, acrylic, or the like, similar to the protective layer 24.

  The illumination device 20 is installed above the sensor sheet 10 and irradiates a part of the sensor sheet 10 with the light L. The lighting device 20 is used to give a warning to an unregistered passerby. Specifically, the light L is irradiated to a position where an unregistered passerby is illuminated, and a light spot 21 is formed at the foot of the passerby. The illuminating device 20 moves the position of the light spot 21 with the movement of the passerby by walking.

  The speaker 30 is a speaker having directivity, and outputs a voice message as a warning for an unregistered passerby. For this reason, the speaker 30 is preferably one that can change the direction of the sound to be output. The speaker 30 may output a general message such as “If you are not registered, you cannot enter this area. Please contact a staff member” as a voice message. In addition, if the number of people passing on the sensor sheet 10 is small, a message specifying the passer-by is displayed, such as “Customer who passes from the counter, registration has not been completed yet”. May be.

  The counter 35 is a counter in which a staff member of the monitoring system of the gate system 100 resides. The clerk pays attention to unregistered passers and guides the registration procedure as necessary.

  FIG. 3 shows a functional configuration of the gate system 100. The gate system 100 includes a sensor sheet 10, a lighting device 20, a speaker 30, and an information processing device 40. The information processing apparatus 40 is configured by a computer and may be installed on the counter 35 in FIG. 1 or may be installed in another place. The information processing device 40 is electrically connected to the sensor sheet 10, the lighting device 20, and the speaker 30 by a signal cable or the like, or connected through a network.

  The information processing apparatus 40 includes a storage unit 41 inside. The storage unit 41 stores pressure information for registered persons (hereinafter referred to as “registered persons”). Here, the pressure information is information detected by the sensor sheet 10 when the person walks on the sensor sheet 10, and specifically includes at least the pressure distribution of the person's foot, and preferably further includes the foot. Shape, stride, center of gravity of the foot, etc. When a person performs registration processing, the person walks on the sensor sheet 10 and detects pressure information. The detected pressure information is stored in the storage unit 41 in association with the identification information of the person.

  When a passerby walks on the sensor sheet 10, the information processing apparatus 40 determines whether the person is a registered person based on the pressure information received from the sensor sheet 10. If not, give a warning.

  When a plurality of passers-by are walking on the sensor sheet 10 at the same time, a large number of passers' feet are detected, but the information processing device 40 identifies the same passer's foot from a number of feet. To do. Although there are some differences between adults and children, the size and stride of a typical person's legs are within a certain range. Further, in normal walking, the right foot and the left foot land alternately. Therefore, when the same size foot is moving in one direction alternately left and right at a certain stride interval, the information processing apparatus 40 can determine that the foot shape is that of the same passerby. it can. In this way, the information processing device 40 identifies the foot type of the same passerby from the many foot types detected by the sensor sheet 10, and the passer has been registered using the pressure information corresponding to the foot type. It is determined whether or not the person is a person.

  There are three warning methods when the passerby is not a registered person. The first method is a method of giving a warning by using the sensor sheet 10. Specifically, as shown in FIG. 1, by causing the display layer 12 of the sensor sheet 10 to emit light, the sensor sheet 10 corresponding to the vicinity of an unregistered person (hereinafter referred to as “unregistered person”). The warning display 17 is performed on a part of the area. As a result, the unregistered person emits bright light at his / her feet while walking.

  The second method is a method of giving a warning by the lighting device 20 as described above. Specifically, as shown in FIG. 1, an unregistered person is illuminated by the illumination device 40, and a light spot 21 is formed at the foot of the unregistered person. The third method is a method of outputting a voice message from the speaker 30 as described above. These methods may be executed in combination depending on the situation.

  FIG. 4 is a flowchart of processing by the gate system 100. This processing is executed by the information processing device 40 every time a new passer enters the sensor sheet 10 and starts walking. That is, when a plurality of passersby are walking on the sensor sheet 10, this process is executed for each passerby.

  First, the sensor sheet 10 detects the foot pressure of the passerby (step S11). When a certain passerby starts walking on the sensor sheet 10, the sensor sheet 10 detects pressure information and transmits it to the information processing apparatus 40. The information processing apparatus 40 acquires pressure information from the sensor sheet 10, refers to the pressure information of the registered person stored in the storage unit 41 (step S12), and determines whether or not the passerby is a registered person. Is determined (step S13). If the passer is a registered person (step S13: Yes), the information processing device 40 does not warn because the pass of the gate is permitted. If necessary, the information processing apparatus 40 may record the date and time when the registered person passed the gate system 100, the direction passed, and the like.

  On the other hand, if the passer is not a registered person (step S13: No), the information processing apparatus 40 warns the passer by at least one of the first to third methods described above (step S13). S14). Then, the process ends.

  As described above, in the gate system 100 of the first embodiment, the pressure sensor layer 13 of the sensor sheet 10 is configured to actively drive a large number of pressure sensors by the OTFT. Can be detected. Therefore, even when a plurality of passers-by pass through the sensor sheet 10 at the same time, personal authentication for each passer-by can be performed in parallel, and it is possible to prevent the passers-by passing through the gate from being jammed. From this point of view, the gate system 100 is effective in places where a large number of people enter and leave at the same time, such as vehicles and movie theaters. Further, by collecting passage history information and the like for registered persons, it is possible to obtain a breakdown of the number of spectators (age, sex, presence of children, etc.) at a level that does not touch personal information. Therefore, when applied to an event venue, for example, it can be used for a sales promotion strategy, an advertising strategy, etc. for the next holding.

[Second Embodiment]
The second embodiment is an example in which the personal authentication system of the present invention is applied to a game device. FIG. 5 schematically shows the appearance of the game apparatus 200. As illustrated, the game device 200 includes a stage 5, a sensor sheet 10 disposed on the stage 5, a lighting device 20, and an information processing device 40 provided outside the stage 5.

  The game device 200 is a game in which a player on the stage 5 acquires a score by touching a position on the sensor sheet 10 presented from the game device in accordance with a certain song.

  The stage 5 functions as a base, and the sensor sheet 10 is disposed thereon. Basically, the stage 5 is a table having a flat upper surface, and the sensor sheet 10 is installed thereon. The illumination device 20 is installed above the sensor sheet 10.

  The information processing apparatus 40 is configured by a computer as in the first embodiment. The information processing apparatus 40 includes a storage unit 41 inside. The storage unit 41 stores pressure information for registered players (hereinafter referred to as “registered players”). Here, the pressure information is information detected by the sensor sheet 10 when the player stands on the sensor sheet 10 and includes at least the pressure distribution of the person's foot, and preferably further includes the shape of the foot, the foot Including the center of gravity. When a certain player performs registration processing, the player stands on the sensor sheet 10 and the sensor sheet 10 detects pressure information. The detected pressure information is stored in the storage unit 41 in association with the identification information of the player. Thus, the pressure information of the registered player is registered in the storage unit 41.

  Further, the information processing apparatus 40 is provided with a display device 50. The display device 50 is, for example, a touch panel using a liquid crystal display, and is used to select a song, input the number of players, give an instruction to start the game, and the like when the player plays a game. The display device 50 displays player information. During game play, music is played by a speaker (not shown).

  FIG. 6 shows a functional configuration of the game apparatus 200. The game device 200 includes an information processing device 40, a sensor sheet 10, a lighting device 20, and a display device 50.

  When the player operates the display device 50 to select a song, input the number of players, and give an instruction to start a game, the information processing device 40 executes a game by executing a program prepared in advance accordingly. Make it progress.

  The game apparatus 200 can be played simultaneously by a plurality of players. When starting to play, the game apparatus 200 performs a player authentication process. Specifically, the game device 200 uses the pressure information of the registered player stored in advance in the storage unit 41 to identify the player who will play.

  FIG. 7 is a flowchart of the player authentication process. This process is mainly executed by the information processing apparatus 40. Assume that two players play at the same time, and when the display device 50 is operated to start play, the information processing device 40 controls the lighting device 20 to display the sensor sheet 10 as shown in FIG. Two light spots SP are displayed on the screen (step S21). At this time, the display device 50 displays instructions for two players to step on the area of one light spot SP with one foot. When the player steps on the area of the light spot SP, the sensor sheet 10 acquires the pressure information of the player's foot and transmits it to the information processing apparatus 40. When the pressure information of the player is acquired (step S12: Yes), the information processing apparatus 40 refers to the pressure information of the registered player stored in the storage unit 41 and identifies each of the two players (step S23). ), And the player name of each player is displayed on the display device 50 (step S24). Then, the authentication process ends.

  Thereby, when starting a game, each player can authenticate as a registered player only by stepping on the area | region instruct | indicated by the light spot SP. Therefore, it is not necessary to input the player name or the like by operating the display device 50 or the like at the start of play.

  In addition, during the play, the information processing device 40 refers to the pressure information stored in the storage unit 41 and compares it with the pressure information of the two players who are currently playing. It is possible to determine which player's step is the player's step. Therefore, even if two players enter the single sensor sheet 10 and step on the steps, the information processing apparatus 40 can determine the steps of the two players and calculate their respective scores.

  In the above example, the personal identification process is performed before the game is started to identify the player. Instead, the personal identification process is performed after the game is finished, and the score of the player who has obtained a high score is stored. You may make it keep. In any case, according to the present embodiment, once the player is registered, the player can be identified based on foot pressure information from the next time.

DESCRIPTION OF SYMBOLS 10 Sensor sheet 11, 13 Protective layer 12 Display layer 13 Pressure sensor layer 20 Illuminating device 30 Speaker 40 Information processing device 41 Memory | storage part 100 Gate system 200 Game device

Claims (7)

A sensor sheet that detects pressure applied by the feet of the subject on the top and outputs pressure information;
A storage unit for storing pressure information of a registered person registered in advance;
Determination means for determining whether or not the subject is a registered person based on pressure information output from the sensor sheet and pressure information stored in the storage unit;
Output means for outputting a determination result by the determination means,
The personal authentication system, wherein the sensor sheet simultaneously detects pressure information about a plurality of subjects by a plurality of pressure sensors actively driven by a transistor.   The personal authentication system according to claim 1, further comprising: a warning unit that issues a warning indicating that the target person is not a registered person when the determination unit determines that the target person is not a registered person. . The sensor plate includes a pressure sensor layer including the transistor and the pressure sensor, a display layer, and a pair of protective layers sandwiching the pressure sensor layer and the display layer,
The personal authentication system according to claim 2, wherein the warning unit displays a warning on the display layer.   The personal authentication system according to claim 2, wherein the warning unit is an illumination device that is disposed above the sensor plate and emits light that illuminates a subject who is determined not to be a registered person.   The personal authentication system according to claim 2, wherein the warning unit is a directional speaker device that is arranged above the sensor plate and emits a warning sound for a subject who is determined not to be a registered person. A display device,
The personal authentication system according to claim 1, wherein the output unit displays information on a target person determined to be a registered person by the determination unit on the display device.   The personal authentication system according to any one of claims 1 to 6, wherein the pressure information includes at least a pressure distribution of the subject's foot.