JP5356338B2 - Gate management device and moving direction determination device - Google Patents

Description

  Embodiments described herein relate generally to a gate management device and a moving direction determination device.

  Among the multiple electrodes laid on the floor (road surface), the position of the pedestrian is detected by performing human body communication between two electrodes that are stepped on with the left and right feet of the pedestrian at the same time. Systems that determine the direction of pedestrian travel are known.

  Such a conventional system detects the position of the pedestrian by performing human body communication between the electrodes that the left foot and the right foot are stepping on. It is necessary to install electrodes within the range of 3 steps. Therefore, there has been a problem that the laying area of the electrode becomes wide. In addition, when there are different pedestrians across a plurality of adjacent electrodes, there is a problem that the position of each pedestrian cannot be detected correctly and the traveling direction cannot be accurately determined.

JP 2004-355343 A

  It is an object of the present invention to provide a gate management device and a movement direction determination device that have a small electrode laying area and can accurately determine the movement direction.

According to this embodiment, the gate management device is arranged on a road surface within a range where one foot of the moving body contacts, and receives a plurality of signals including identification information of the moving body from the communication device via the moving body. An electrode, and a plurality of detectors for detecting the reception intensity of the signal at each electrode and the identification information. In addition, the gate management device has a determination unit that determines the moving direction of the moving body based on the time when the reception intensity at each electrode becomes maximum and the position of the electrode, and at least three detectors detect predetermined identification information, In addition, when the direction in which the electrodes having received the identification information are arranged in order of signal reception time is directed to the gate, it is determined that the gate is unlocked, and the gate entry / exit information of the moving body is stored in the database based on the movement direction. And a management unit.

It is a schematic block diagram of the gate management apparatus which concerns on the 1st Embodiment of this invention. It is a graph which shows an example of the time change of the receiving strength of the signal in each electrode. It is a flowchart which shows the process of the movement direction determination apparatus which concerns on the 1st Embodiment. It is a flowchart which shows the process of the management part which concerns on the 1st Embodiment. It is a flowchart which shows the process of the management part which concerns on the 2nd Embodiment of this invention. It is a figure which shows an example of a structure of a receiving part. It is a figure which shows an example of a structure of a receiving part.

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

  (First Embodiment) FIG. 1 shows a schematic configuration of a gate management apparatus according to a first embodiment of the present invention. The gate management device stores a movement direction determination device 100 that determines the movement direction (walking direction) of the pedestrian P, a management unit 114 that manages the entry / exit of the pedestrian P, and an entry / exit management database of the gate 120. The apparatus 115 and the control part 116 which controls opening and closing of the gate 120 are provided.

The pedestrian P has a communication device 130 that transmits a signal S including ID information (identification information) of the pedestrian P, and the signal S transmitted from the communication device 130 passes through the body of the pedestrian P. It is received by the moving direction determination device 100. That is, the communication device 130 and the moving direction determination device 100 perform human body communication. The communication device 130 includes a storage unit (not shown) that stores ID information, a transmission unit (not shown) that transmits ID information, and an electrode (not shown) connected to the transmission unit. The communication device 130 is carried by the pedestrian P, for example, in the pedestrian P's clothes, hung from the neck with a strap, or wrapped around an arm or wrist.

The moving direction determination device 100 includes a receiving unit 103 that receives the signal S from the communication device 130, a detection unit 105 that detects the reception intensity of the signal S in the receiving unit 103 and the ID information of the pedestrian P included in the signal S, The recording unit 107 that records the reception intensity of the signal S, the time, and the ID information included in the signal S, the determination unit 108 that determines the moving direction of the pedestrian P, and the ID information included in the received signal S The 1st transmission part 110 which transmits to the management part 114, and the 2nd transmission part 112 which transmits the determination result of the determination part 108 to the management part 114 are provided.

  The receiving unit 103 includes a plurality of (in this embodiment, five) electrodes 102a to 102e arranged under the floor (road surface). The electrodes 102a to 102e are laid at a predetermined interval, and the laying area is about the same as or slightly larger than the size of the foot of the pedestrian P. When the electrodes 102a to 102e are stepped on by the pedestrian P, the signals S transmitted from the communication device 130 (electrodes of the communication device 130) can be received via the human body of the pedestrian P.

  The detection unit 105 confirms the presence or absence of a reception signal from the signal level of the reception signal in the reception unit 103. When there is a reception signal, the detection unit 105 checks whether the reception signal includes ID information and detects the ID information.

The detection unit 105 includes the same number of detectors 104 a to 104 e as the electrodes 102 a to 102 e of the reception unit 103. The detectors 104a to 104e are connected to the electrodes 102a to 102e, respectively. For example, the detector 104a is connected to the electrode 102a. The detector 104a detects the signal level of the reception signal at the electrode 102a, that is, the reception intensity of the signal S, and confirms whether or not the signal S is received. Moreover, the detector 104a checks whether or not the signal S received by the electrode 102a includes the ID information of the pedestrian P, and if so, detects the ID information.

  Similarly, the detector 104b detects the reception intensity of the signal S at the electrode 102b and the ID information of the pedestrian P included in the signal S. The detector 104c detects the reception intensity of the signal S at the electrode 102c and the ID information of the pedestrian P included in the signal S. The detector 104d detects the reception intensity of the signal S at the electrode 102d and the ID information of the pedestrian P included in the signal S. The detector 104e detects the reception intensity of the signal S at the electrode 102e and the ID information of the pedestrian P included in the signal S.

  The recording unit 107 has the same number of recording areas 106 a to 106 e as the detectors 104 a to 104 e of the detection unit 105. The recording areas 106a to 106e record the reception intensity, ID information, and time detected by the detectors 104a to 104e, respectively. Here, the time is the time detected by the detectors 104a to 104e, which is substantially the same as the time when the signal S is received by the electrodes 102a to 102e.

For example, the recording area 106a records the reception intensity of the signal S at the electrode 102a, the ID information of the pedestrian P included in the signal S, and the time detected by the detector 104a. The recording area 106a records the reception intensity, ID information, and time while the electrode 102a receives the signal S, that is, while the detector 104a detects the reception intensity and ID information of the signal S. Therefore, the recording area 106a records the time series change of the reception intensity of the signal S at the electrode 102a and the ID information.

  Similarly, the recording area 106b records the time-series change of the reception intensity of the signal S at the electrode 102b and the ID information included in the signal S, detected by the detector 104b. The recording area 106c records the time-series change of the reception intensity of the signal S at the electrode 102c and the ID information included in the signal S, detected by the detector 104c. The recording area 106d records the time series change of the reception intensity of the signal S at the electrode 102d and the ID information included in the signal S detected by the detector 104d. The recording area 106e records the time-series change of the reception intensity of the signal S at the electrode 102e detected by the detector 104e and the ID information included in the signal S.

The first transmission unit 110 receives the ID information detected by the detectors 104a to 104e of the detection unit 105, the position information of the electrodes 102a to 102e that received the signal S including the ID information, and the detection time (or reception) of the signal S. Time) is transmitted to the management unit 114. For example, when the detector 104b detects the ID information, the first transmission unit 110 detects the detected ID information, the position information of the electrode 102b, and the detection time of the ID information in the detector 104b (or the signal S by the electrode 102b). Is received) to the management unit 114.

In addition, when the management part 114 grasps | ascertains the positional relationship of the electrodes 102a-102e, the 1st transmission part 110 does not need to transmit the positional information on the electrodes 102a-102e which received the signal S, but the signal S is transmitted. The management unit 114 may be notified of which of the electrodes 102a to 102e the received electrode is.

  In the determination unit 108, when there is no reception signal in the reception unit 103, data (time-series change in reception intensity of the signal S at the electrodes 102a to 102e and ID information included in the signal S) is recorded in the recording unit 107. Check if it exists. When data is recorded in the recording unit 107, the determination unit 108 determines the moving direction of the pedestrian P using this data.

  The determination unit 108 extracts, from the recording area 106a, the time-series change of the reception intensity of the signal S at the electrode 102a and the ID information included in the signal S. And the determination part 108 calculates | requires the time when the reception intensity | strength of the signal S in the electrode 102a becomes the maximum.

  Similarly, the determination unit 108 extracts the time-series change of the reception intensity of the signal S at the electrode 102b and the ID information included in the signal S from the recording area 106b, and the time when the reception intensity of the signal S at the electrode 102b becomes maximum. Ask for. In addition, the determination unit 108 extracts the time-series change of the reception intensity of the signal S at the electrode 102c and the ID information included in the signal S from the recording area 106c, and determines the time when the reception intensity of the signal S at the electrode 102c becomes maximum. Ask. In addition, the determination unit 108 extracts the time-series change of the reception intensity of the signal S at the electrode 102d and the ID information included in the signal S from the recording area 106d, and determines the time when the reception intensity of the signal S at the electrode 102d becomes maximum. Ask. The determination unit 108 extracts the time-series change of the reception intensity of the signal S at the electrode 102e and the ID information included in the signal S from the recording area 106e, and obtains the time when the reception intensity of the signal S at the electrode 102e is maximized.

  The determination unit 108 determines the moving direction of the pedestrian P from the order of the time when the reception intensity of the signal S is maximized and the positions of the electrodes 102a to 102e. In general, when walking, the pedestrian P contacts the floor in the order of foot toes and toes, and leaves the floor in the order of foot toes. As a result, as shown in FIG. 2, the time at which the reception intensity of the signal S is maximized at each electrode varies depending on the order of contact. The direction in which the electrodes 102a to 102e are arranged in the order of the time when the reception intensity of the signal S is maximized is considered as the moving direction of the pedestrian P. For example, in the example shown in FIG. 2, it can be determined that the pedestrian P has moved in the direction of the electrodes 102b to 102e.

  Even if it does not necessarily contact the floor in the order of heel to toe, when the foot leaves the floor, the center of gravity moves in the advancing direction, and the foot advances in the last direction, so the reception intensity of the signal S is the maximum. It becomes possible to determine the moving direction of the pedestrian P based on this time.

Note that the determination unit 108 obtains the time at which the reception intensity is the maximum for those having the same ID information among the time-series changes in the reception intensity of the signal S extracted from the recording areas 106a to 106e, and determines the pedestrian P's Determine the direction of movement. By doing in this way, when another pedestrian steps on electrode 102a-102e, the influence which it has on determination of the movement direction of pedestrian P can be excluded.

  The second transmission unit 112 transmits the movement direction of the pedestrian P determined by the determination unit 108 and the ID information of the pedestrian P to the management unit 114.

The storage device 115 stores ID information of persons who are allowed to pass through the gate 120. The entry / exit management database stored in the storage device 115 stores a record of people who enter / exit through the gate 120.

The management unit 114 receives the ID information detected by the detectors 104a to 104e of the detection unit 105 from the first transmission unit 110, the position information of the electrodes 102a to 102e that have received the signal S including the ID information, and the signal S The detection time (or reception time) is received. The management unit 114 checks whether or not the received ID information matches the ID information stored in the storage device 115. When the ID information matches, the management unit 114 confirms whether or not the same ID information is received by three or more different electrodes among the electrodes 102a to 102e. When the same ID information is received by three or more different electrodes, the management unit 114 time-series the electrodes that have received this ID information based on the reception time. Then, if the arrangement of the electrodes is directed toward the gate 120, the management unit 114 determines to unlock the gate 120 and notifies the control unit 116 of the fact. The reason that the same ID information is received by three or more different electrodes is that the direction cannot be correctly determined with only two.

In addition, the management unit 114 receives the moving direction of the pedestrian P determined by the determination unit 108 and the ID information of the pedestrian P from the second transmission unit 112. The management unit 114 detects whether or not the pedestrian P has entered / exited through the gate 120 from the moving direction of the pedestrian P determined by the determination unit 108, and the entry / exit management database of the storage device 115 indicates the entry / exit status. Save to. Then, the management unit 114 determines to lock the gate 120 and notifies the control unit 116 of the fact.

The control unit 116 controls opening / closing of the gate 120 based on the notification from the management unit 114. For example, when notified of the unlocking of the gate 120 from the management unit 114, the control unit 116 unlocks and opens the gate 120. Further, when the control unit 116 is notified by the management unit 114 that the gate 120 is locked, the control unit 116 locks and closes the gate 120.

Thus, according to the present embodiment, the gate management device matches the ID information received by the electrodes 102a to 102e with the ID information stored in the storage device 115, and the same ID information is different. The gate 120 is unlocked when it is confirmed that the arrangement of the electrodes received by two or more electrodes and time-series at the reception time of the ID information is in the direction toward the gate 120. Therefore, the gate management device opens the gate 120 only for a pedestrian who intends to pass through the gate 120, and closes the gate 120 for a pedestrian who does not intend to pass through the gate 120 such as just across the gate 120. Can be left alone. Moreover, since the determination part 108 determines the moving direction of the pedestrian P, the management part 114 can manage the entrance / exit situation of the pedestrian P.

Further, the determination unit 108 uses the characteristics that when a human walks, the electrode 102a is separated from the floor in the order of the toe of the foot, the center of gravity moves in the traveling direction, and the traveling direction leaves at the end. -102e, the moving direction of the pedestrian P is accurately determined from the order of the time when the reception intensity of the signal S is maximum and the position of the electrode. That is, the determination unit 108 can accurately determine the moving direction based on the received signal from the time when one foot of the pedestrian P comes into contact with the electrodes 102a to 102e until the foot leaves. Electrode 102a-102e should just be arrange | positioned to the extent which is equivalent to the size of the foot of pedestrian P, or a little large, and can lay down an installation area.

A gate management method using the above-described gate management apparatus according to the present embodiment will be described with reference to the flowcharts of FIGS. FIG. 3 shows processing in the movement direction determination apparatus 100.

(Step S101) The detectors 104a to 104e detect the reception intensity of signals at the electrodes 102a to 102e, and determine the presence or absence of a reception signal. If there is a received signal, the process proceeds to step S102, and if not, the process proceeds to step S105.

(Step S102) The detectors 104a to 104e detect ID information from the reception signals at the electrodes 102a to 102e. If ID information is included, the process proceeds to step S103. If not included, the process proceeds to step S105.

(Step S103) The recording areas 106a to 106e of the recording unit 107 record the reception intensity, ID information, and time detected by the detectors 104a to 104e, respectively.

(Step S104) The ID information detected by the first transmitter 110 by the detectors 104a to 104e, the position information of the electrodes 102a to 102e that received the signal S including the ID information, and the detection time (or reception) of the signal S Time) is transmitted to the management unit 114.

(Step S105) If data (time-series change in received intensity of the signal S at the electrodes 102a to 102e and ID information included in the signal S) is recorded in the recording unit 107, the process proceeds to Step S106, and is not recorded. If so, the process returns to step S101.

(Step S <b> 106) The determination unit 108 extracts the recording data of the recording unit 107.

(Step S107) The determination part 108 calculates | requires the time when the receiving intensity | strength of the signal S becomes the maximum about each of electrode 102a-102e.

(Step S108) The determination unit 108 determines the moving direction of the pedestrian P from the direction when the electrodes 102a to 102e are arranged in the order of the time when the reception intensity of the signal S is maximized.

(Step S109) The second transmission unit 112 transmits the moving direction of the pedestrian P determined by the determination unit 108 in step S108 and the ID information of the pedestrian P to the management unit 114.

Next, processing in the management unit 114, the storage device 115, and the control unit 116 will be described with reference to FIG.

(Step S201) The management unit 114 receives the ID information transmitted from the first transmission unit 110 (in step S104 of FIG. 3), the position information of the electrodes 102a to 102e that received the ID information, and the time.

(Step S202) It is determined whether or not the ID information received in step S201 matches the ID information stored in the storage device 115. If they match, the process proceeds to step S203. If they do not match, the process ends.

(Step S203) It is determined whether or not the same ID information has been received by three or more different electrodes among the electrodes 102a to 102e. If it has been received by three or more different electrodes, the process proceeds to step S204, and if it has been received by two or less electrodes, the process ends.

(Step S204) The electrodes 102a to 102e that have received the ID information are arranged in time series according to the reception time.

(Step S205) It is determined whether or not the arrangement of the electrodes in step S204 is in the direction toward the gate 120. If the direction is toward the gate 120, the process proceeds to step S206. If the direction is not toward the gate 120, the process is terminated.

(Step S <b> 206) The management unit 114 determines the unlocking of the gate 120 and notifies the control unit 116. The control unit 116 unlocks the gate 120.

(Step S207) The management unit 114 receives the movement direction and ID information of the pedestrian P transmitted from the second transmission unit 112 (in step S109 of FIG. 3).

(Step S <b> 208) The management unit 114 confirms the entry / exit situation from the moving direction of the pedestrian P and stores it in the entry / exit management database of the storage device 115.

(Step S209) The management unit 114 determines the locking of the gate 120 and notifies the control unit 116 of it. The control unit 116 locks the gate 120.

According to the present embodiment, the electrodes 102 a to 102 e having a small laying area that are arranged to be the same size as or slightly larger than the foot size of the pedestrian P receive signals from the communication device 130. The ID information received by the electrodes 102a to 102e matches the ID information stored in the storage device 115, and the same ID information is received by three or more different electrodes, and at the reception time of the ID information. When it is confirmed that the time-series electrode arrangement is in the direction toward the gate 120, the gate 120 is unlocked. Therefore, the gate management apparatus can open the gate 120 only for a pedestrian who intends to pass through the gate 120. In addition, it is possible to accurately determine the moving direction of the pedestrian P from the order of the time when the reception intensity of the signal S at the electrodes 102a to 102e is maximized and the position of the electrode, and to manage the entry / exit situation.

  As described above, the gate management device and the movement direction determination device according to the present embodiment can reduce the laying area of the electrode and accurately determine the movement direction of the pedestrian.

(Second Embodiment) In the first embodiment, even if the ID information registered in the storage device 115 matches the ID information sent from the first transmitter 110, If it is not confirmed that the same ID information is received by three or more different electrodes and that the arrangement of electrodes time-series at the reception time of the ID information is in the direction toward the gate 120, the management unit 114 The gate 120 was not unlocked. However, when the pedestrian P walks such that his / her feet do not land on the floor in the order from the heel to the toes, a situation occurs in which the gate 120 is not always unlocked.

Therefore, in this embodiment, even when the same ID information is not received by three or more different electrodes, or even when the arrangement of electrodes time-series at the reception time of the ID information is not in the direction toward the gate 120, The management unit 114 confirms whether or not the reception of the ID information at the electrodes 102a to 102e continues for a predetermined time or more (whether the detection of the ID information at the detectors 104a to 104e continues for the predetermined time or more), and unlocks the gate 120. Do.

FIG. 5 illustrates processing of the management unit 114, the storage device 115, and the control unit 116 in the present embodiment.

(Step S301) The management unit 114 receives the ID information transmitted from the first transmission unit 110 (in step S104 of FIG. 3), the position information of the electrodes 102a to 102e that received the ID information, and the time.

(Step S302) It is determined whether or not the ID information received in step S301 matches the ID information stored in the storage device 115. If they match, the process proceeds to step S303, and if they do not match, the process ends.

(Step S303) It is determined whether or not the same ID information has been received by three or more different electrodes among the electrodes 102a to 102e. If received by three or more different electrodes, the process proceeds to step S304, and if received by two or less electrodes, the process proceeds to step S306.

(Step S304) The electrodes 102a to 102e that received the ID information are arranged in time series according to the reception time.

(Step S305) It is determined whether or not the arrangement of the electrodes in step S304 is in the direction toward the gate 120. If the direction is toward the gate 120, the process proceeds to step S307. If the direction is not toward the gate 120, the process proceeds to step S306.

(Step S306) If the reception of the ID information by the electrodes 102a to 102e continues for a predetermined time (for example, 5 seconds) or more, the process proceeds to step S307, and if not, the process ends.

(Step S <b> 307) The management unit 114 determines the unlocking of the gate 120 and notifies the control unit 116 of it. The control unit 116 unlocks the gate 120.

(Step S308) The management unit 114 receives the movement direction and ID information of the pedestrian P transmitted from the second transmission unit 112 (in step S109 of FIG. 3).

(Step S309) The management unit 114 confirms the entry / exit situation from the moving direction of the pedestrian P, and stores it in the entry / exit management database of the storage device 115.

(Step S <b> 310) The management unit 114 determines the locking of the gate 120 and notifies the control unit 116. The control unit 116 locks the gate 120.

As a result, even a pedestrian walking in such a way that the foot landing on the floor does not follow the order of the toes can be opened by standing on the receiving unit 103 in front of the gate 120 for a predetermined time. Become.

In the first and second embodiments, the moving direction determination apparatus 100 only needs to have the receiving unit 103 disposed below the floor (road surface), and includes a detection unit 105, a recording unit 107, a determination unit 108, and a first transmission unit. 110 and the second transmission unit 112 may be arranged at arbitrary locations.

  FIG. 6 is a longitudinal sectional view showing an example of a method for installing the electrodes 102a to 102e. As shown in FIG. 6, it is preferable that the floor (road surface) has an uneven shape and the electrodes 102 a to 102 e are installed on the convex portions of the floor (road surface). By installing the electrodes 102a to 102e in this way, the contact area between the electrodes 102a to 102e and the foot can be increased, and the reception sensitivity can be improved.

  In addition, as illustrated in FIG. 7, a conductor 701 whose both ends are connected to the ground 703 via a resistor 702 having a high resistance value may be provided between the electrodes 102 a to 102 e. With such a configuration, the pedestrian steps on the conductor 701 simultaneously with the plurality of electrodes 102a to 102e. When the conductor 701 does not exist, an electrode that is not actually stepped on by a foot may receive a signal due to the coupling between the adjacent electrodes 102a to 102e. On the other hand, by providing the conductor 701 between the electrodes 102a to 102e, the coupling between the electrodes 102a to 102e can be reduced and the isolation can be increased. Thereby, the electrodes 102a-102e actually stepped on by the pedestrian can be determined accurately.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

DESCRIPTION OF SYMBOLS 100 Movement direction determination apparatus 102a-102e Electrode 103 Reception part 104a-104e Detector 105 Detection part 106a-106e Recording area 107 Recording part 108 Determination part 110 1st transmission part 112 2nd transmission part 114 Management part 115 Storage device 116 Control part 120 gate 130 communication device

Claims (5)

A gate management device for managing a moving body that enters and exits a gate,
A plurality of electrodes spaced from each other by a predetermined distance on the road surface, arranged within a range where one leg of the moving body contacts, and capable of receiving a signal including identification information of the moving body from a communication device via the moving body; ,
A plurality of detectors connected to each of the plurality of electrodes and detecting the reception intensity of the signal and the identification information at each electrode;
A determination unit that determines a time at which the reception intensity is maximum for each of the plurality of detectors, and determines a moving direction of the moving body based on the time and the position of the corresponding electrode.
The identification information detected by at least three detectors matches predetermined identification information, and the direction in which the electrodes that have received the identification information are arranged in a time series based on the reception time of the signal is It is determined that the gate is unlocked when it is in the direction toward the gate, and information on the moving body entering and exiting the gate based on the moving direction determined by the determination unit is stored in a database, and the gate is A management department that decides to lock,
A control unit for unlocking and locking the gate based on the determination by the management unit;
A gate management device comprising:   The management unit determines to unlock the gate when the electrode continuously receives a signal including identification information that matches the predetermined identification information for a predetermined time or more. The gate management apparatus according to 1.   The gate management device according to claim 1, wherein the plurality of electrodes are provided on a convex portion of an uneven road surface.   3. The gate according to claim 1, wherein a conductor having one end grounded through a first resistor and the other end grounded through a second resistor is provided between the electrodes adjacent to each other. Management device. A moving direction determination device for determining a moving direction of a moving body,
A plurality of electrodes spaced from each other by a predetermined distance on the road surface, arranged within a range where one leg of the moving body contacts, and capable of receiving a signal from a communication device via the moving body;
A plurality of detectors connected to each of the plurality of electrodes for detecting the reception intensity of the signal at each electrode;
A determination unit that determines a time at which the reception intensity is maximum for each of the plurality of detectors, and determines the moving direction based on the time and the position of the corresponding electrode;
A moving direction determination device comprising:

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