JP2007072658A - Pedestrian detection system and pedestrian detection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pedestrian detection system and a pedestrian detection device capable of improving the safety of a pedestrian crossing a road.
The shoe of a pedestrian 44 incorporates an IC tag for transmitting pedestrian attribute information including information indicating the pedestrian's physique and gender. At both ends of the pedestrian crossings 42A to 42D at the intersection, pedestrian attribute information transmitted from the pedestrian side is received, and pedestrian crossing information including the presence / absence of the pedestrian and the direction of travel, the pedestrian crossing number of the pedestrian crossing, etc. Pedestrian crossing information output devices 46A1 to 46D2 for transmission are provided. The vehicle 30 receives and refers to the pedestrian crossing information transmitted from the pedestrian crossing information output devices 46A1 to D2, and when there is a pedestrian on the crosswalk in the traveling direction of the own vehicle, the vehicle 30 The driver is warned of the presence / absence and direction of pedestrian travel.
[Selection] Figure 2

Description

  The present invention relates to a pedestrian detection system and a pedestrian detection device, and more particularly to a pedestrian detection system and a pedestrian detection device that detect a pedestrian crossing a road.

  A traffic light is provided at the intersection, and a pedestrian crossing is provided to ensure the safety of pedestrians. When the vehicle enters the intersection and makes a right / left turn, it is necessary to make a right / left turn after confirming whether or not the pedestrian is crossing the pedestrian crossing.

  However, when the vehicle turns right and left at the intersection and crosses the pedestrian crossing, especially when the direction of the vehicle entering the intersection and the direction of travel of the pedestrian crossing the pedestrian crossing are the same, the pedestrian tends to be a blind spot for the vehicle, The safety of pedestrians is not enough.

  For this reason, for example, in Patent Document 1, pedestrian information including information on the current position and walking ability of a pedestrian that is output from a transmitter attached to the pedestrian is received by an apparatus provided on the intersection side, An intersection crossing pedestrian monitoring system that transmits this information to each vehicle is disclosed.

Further, Patent Document 2 discloses pedestrian information including information on the presence or absence of a pedestrian and an identification signal for identifying a pedestrian crossing by detecting a pedestrian crossing a pedestrian crossing with a pedestrian detection device provided on the intersection side. Is transmitted to the vehicle, and on the vehicle side, a pedestrian detection alarm system for vehicles is disclosed in which only necessary pedestrian information is displayed on the display in accordance with the traveling direction of the vehicle.
Japanese Patent Laid-Open No. 2001-134891 JP 7-105477 A

  However, in the above-described prior art, since the traveling direction of the pedestrian cannot be detected on the vehicle side, the vehicle driver may not be able to properly recognize the current situation of the pedestrian who crosses the pedestrian crossing. Therefore, there is room for improvement in order to further improve the safety of pedestrians at intersections.

  The present invention has been made in consideration of the above facts, and an object thereof is to provide a pedestrian detection system and a pedestrian detection device capable of improving the safety of a pedestrian crossing a road.

  In order to achieve the above object, a pedestrian detection system according to claim 1 is attached to an object worn by a pedestrian and transmits a pedestrian signal indicating the presence of the pedestrian, a road Road-side receiving means for receiving the pedestrian signal transmitted from a pedestrian crossing the road, and a pedestrian traveling direction of the pedestrian crossing the road based on the received pedestrian signal A pedestrian crossing information output device including transmission means for generating pedestrian crossing information including and transmitting the pedestrian crossing information to a vehicle entering the intersection, and a vehicle side provided in the vehicle and receiving the pedestrian crossing information A pedestrian detection device including a receiving means and a notification means for notifying the presence of a pedestrian crossing the road and the traveling direction of the pedestrian to a vehicle occupant based on the pedestrian crossing information. Prepared The features.

  According to this invention, the transmission device worn by the pedestrian, the pedestrian crossing information output device provided on the road side, and the pedestrian detection device provided on the vehicle side are provided.

  The transmission device is attached to an object worn by a pedestrian and transmits a pedestrian signal indicating the presence of the pedestrian.

  The pedestrian crossing information output device receives a pedestrian signal transmitted from a pedestrian crossing the road, and includes pedestrian crossing information including a pedestrian travel direction of the pedestrian crossing the road based on the received pedestrian signal. Is transmitted to a pedestrian detection device provided in a vehicle entering the intersection. The pedestrian crossing the road includes not only a pedestrian crossing the road but also a pedestrian who is going to cross the road.

  The pedestrian detection device receives the pedestrian crossing information transmitted from the pedestrian crossing information output device, and based on the received pedestrian crossing information, the presence of the pedestrian crossing the road and the pedestrian traveling direction are To the passengers.

  Thus, the traveling direction of the pedestrian crossing the road on the road side is detected and notified to the vehicle side, and the traveling side of the pedestrian is notified to the vehicle occupant on the vehicle side, so that the driver of the vehicle is sure A pedestrian crossing the road can be recognized. For this reason, it is promoted that the driver drives while paying attention to the pedestrian, and the safety of the pedestrian crossing the road can be improved.

  In addition, as described in Claim 2, the said pedestrian signal can be made into the signal containing the information regarding at least one of the information regarding the said pedestrian's physique, and the information regarding sex. As a result, the driver of the vehicle can recognize whether the pedestrian crossing the road is an adult or a child, and the driver is further encouraged to drive while paying attention to the pedestrian. Can be improved.

  According to a third aspect of the present invention, the thing that the pedestrian wears is a shoe, and the transmitting device is built in the pedestrian's shoe. In this case, for example, it is built in, for example, a shoe heel at the time of shoe manufacture. Thereby, it is not necessary for the user to attach a transmission device, and convenience can be improved.

  According to a fourth aspect of the present invention, the pedestrian signal transmitted from the transmitting device has directivity, and the road-side receiving means is provided at both ends in the transverse direction of the road. Also good. Thereby, the advancing direction of a pedestrian can be detected with a simple configuration.

  A pedestrian detection device according to a fifth aspect of the present invention is a pedestrian detection device that is attached to an object worn by a pedestrian and that transmits a pedestrian signal indicating the presence of the pedestrian, and is provided on the road side and crosses the road. Pedestrian crossing information including a pedestrian travel direction of a pedestrian crossing the road based on the received pedestrian signal and road side receiving means for receiving the pedestrian signal transmitted from the pedestrian A pedestrian crossing information output device including transmission means for transmitting toward the vehicle entering the intersection, and a pedestrian detection device mounted on the vehicle in the pedestrian detection system, the pedestrian Vehicle-side receiving means for receiving crossing information, and notification means for informing the occupants of the vehicle of the presence and presence of pedestrians crossing the road based on the pedestrian crossing information. Including The features.

  According to the present invention, the driver is encouraged to drive while paying attention to the pedestrian, and the safety of the pedestrian crossing the road can be improved.

  In addition, as described in claim 6, the vehicle further includes a traveling direction detection unit that detects a traveling direction of the vehicle, and the notification unit is provided only when there is a pedestrian crossing a road in the traveling direction of the vehicle. You may make it alert | report. Thereby, since only the information that is truly necessary for the driver of the vehicle is notified, the driver can more accurately recognize a pedestrian who crosses the road in the traveling direction of the vehicle.

  According to a seventh aspect of the present invention, the notification unit may include a voice output unit and output a warning message indicating the presence of a pedestrian crossing the road and the pedestrian traveling direction.

  In addition, as described in claim 8, the notification means includes a car navigation system, and displays a mark indicating the presence of a pedestrian crossing the road and the pedestrian traveling direction on a map. Good.

  In addition, as described in claim 9, the notifying unit includes a head-up display that projects an image on a windshield of the vehicle, and indicates the presence of a pedestrian crossing the road and the pedestrian traveling direction May be projected onto the windshield.

  In addition, as described in claim 10, the informing means includes a vibration device that vibrates a part that a part of a body of an occupant of the vehicle contacts, and when there is a pedestrian crossing the road, You may make it vibrate a vibration apparatus.

  In addition, as described in claim 11, the informing means includes a tension adjusting device that adjusts a tension of a seat belt that restrains an occupant of the vehicle, and when there is a pedestrian crossing the road, the seat The belt tension may be increased.

  In addition, according to a twelfth aspect of the present invention, the notifying unit includes a current supply device that supplies a weak current to a steering that steers the vehicle, and the steering is weak when there is a pedestrian crossing the road. A current may be supplied.

  According to a thirteenth aspect of the present invention, the traveling direction detection unit may be at least one of a winker switch, a yaw rate sensor, and a steering angle sensor of the vehicle.

  As described above, according to the present invention, there is an effect that the safety of a pedestrian crossing a road can be improved.

  Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a schematic configuration of a pedestrian detection device 10 according to an embodiment of the present invention. As shown in FIG. 1, the pedestrian detection device 10 includes a control unit 12, a left turn signal switch 14L, a right turn signal switch 14R, a yaw rate sensor 16, a steering angle sensor 18, an operation unit 20, a state display unit 22, a warning device 24, The car navigation system 26 and the receiving unit 28 are included. This pedestrian detection device 10 is mounted on a vehicle 30 as shown in FIG.

  The left turn signal switch 14L is a switch that is turned on when the driver operates the winker lever of the vehicle 30 so that the left turn signal of the vehicle 30 blinks, and the right turn signal switch 14R is a driver that blinks the right turn signal of the vehicle 30. Is a switch that is turned on when the winker lever of the vehicle 30 is operated.

  The yaw rate sensor 16 detects the rotational angular velocity around the center of gravity of the vehicle 30 and outputs a signal (rotational angular velocity signal) corresponding to the rotational angular velocity.

  The steering angle sensor 18 detects the steering angle of the steering for steering the front wheels of the vehicle 30, and outputs a signal (steering angle signal) corresponding to the detected steering angle.

  The operation unit 20 includes buttons and switches for setting air conditioning conditions and various functions.

  The state display unit 22 displays the state of the vehicle 30 such as the speed of the vehicle 30, the engine speed, the door opening / closing state, and the trunk opening / closing state.

  The warning device 24 is a device for warning a driver or the like when it is detected that a pedestrian is present on a sidewalk in the traveling direction of the vehicle 30 when the vehicle 30 enters an intersection. Outputs a warning sound or outputs a warning message by voice.

  The car navigation system 26 includes a recording medium such as a DVD-ROM, a CD-ROM, and a hard disk on which map data is recorded, a display, a control device, and the like. The position (latitude, longitude, altitude) of the vehicle 30 is determined by GPS (Global Positioning System). ) A system that calculates based on a signal from a satellite, generates a navigation screen in which this is displayed on a two-dimensional or three-dimensional map, and displays it on the display.

  The receiving unit 28 wirelessly receives pedestrian crossing information output from a pedestrian crossing information output device provided on the intersection side.

  As shown in FIG. 2, the intersection 40 is provided with pedestrian crossings 42A to 42D for a pedestrian to safely cross the road. The pedestrian attribute information output from the pedestrian 44 that crosses or is about to cross the pedestrian crossing 42A is received at both ends of the pedestrian crossing 42A, and pedestrian crossing information is generated and transmitted based on the pedestrian attribute information. Person crossing information output devices 46A1 and A2 are provided. Similarly, pedestrian crossing information output devices 46B1 and B2 are provided at both ends of the pedestrian crossing 42B, pedestrian crossing information output devices 46C1 and C2 are provided at both ends of the pedestrian crossing 42C, and walking is provided at both ends of the pedestrian crossing 42D. Person crossing information output devices 46D1 and D2 are respectively provided.

  These pedestrian crossing information output devices are provided side by side with a traffic light, for example. Hereinafter, when these pedestrian crossing information output devices are generically referred to, they are simply referred to as pedestrian crossing information output devices 46.

  The pedestrian crossing information output device 46 constantly irradiates a predetermined pedestrian crossing with a predetermined electromagnetic wave for driving an IC tag carried by a pedestrian 44 described later, and drives the IC tag within a predetermined range including the pedestrian crossing. Forming an electric field area.

  For example, as shown in FIG. 3, the pedestrian crossing information output device 46A2 outputs a predetermined electromagnetic wave toward the pedestrian crossing 42A (from the upper side to the lower side in the figure), and the pedestrian crossing information output device 46A2 An electric field area E is formed in a range including a part of an area where a pedestrian waits before crossing. On the other hand, the pedestrian crossing information output device A1 outputs a predetermined electromagnetic wave toward the pedestrian crossing 42A (from the lower side to the upper side in the figure), and the pedestrian crosses the pedestrian crossing 42A and the pedestrian crossing 42A. An electric field area (not shown) is formed in a range including a part of the standby area.

  The pedestrian 44 carries an IC tag for transmitting pedestrian attribute information. In the present embodiment, as shown in FIG. 4, an IC tag 50 is built in a shoe 48 </ b> A of a shoe 48 in advance.

  As shown in FIG. 5, the IC tag 50 includes a CPU (central processing unit) 52 that controls the entire IC tag 50, a non-volatile memory 54 configured to be able to write and read various information, and an antenna 56. A transmission / reception unit 58 for transmitting / receiving signals to / from the pedestrian crossing information output device 46, and a capacitor 59 for storing electric power generated by electromagnetic induction by a predetermined electromagnetic wave output from the pedestrian crossing information output device 46, It is equipped with.

  The transmission / reception unit 58 has a function of receiving a predetermined electromagnetic wave output from the pedestrian crossing information output device 46 via the antenna 56 and generating electric power by electromagnetic induction, and stores this in a capacitor. The CPU 52 and the memory 54 are driven by the electric power stored in the capacitor 59. Therefore, when the pedestrian 44 enters the electric field area E, the IC tag 50 can be operated.

  The memory 54 stores information and sex for identifying the physique of the pedestrian 44 such as the shoe size L of the shoes 48 worn by the pedestrian 44 and the type of shoes (for adult men, women, elementary school children, etc.). Pedestrian attribute information including information related to the attribute of the pedestrian 44 such as information for specifying the pedestrian is written in advance.

  When the pedestrian 44 enters the electric field area E, the CPU 52 operates to read the pedestrian attribute information stored in the memory 54 and transmit it through the transmission / reception unit 58 and the antenna 56. In addition, transmission of pedestrian attribute information is regularly transmitted, for example for every predetermined time.

  The electromagnetic wave transmitted from the antenna 56 has directivity, and the IC tag 50 faces the direction in which the pedestrian 44 walks, that is, from the heel 48A side of the shoe 48 of the pedestrian 44 to the toe side. It is built in the bag 48A so that the pedestrian attribute information is transmitted.

  Thus, as shown in FIG. 2, when the pedestrian 44 crosses the pedestrian crossing 42A in the direction of arrow A in the figure, the pedestrian attribute information transmitted from the pedestrian 44 is received by the pedestrian crossing information output device 46A2. The Therefore, the pedestrian crossing information output device 46A2 can detect that the pedestrian 44 crosses the pedestrian crossing 42A in the direction of arrow A in the figure.

  On the other hand, when the pedestrian 44 crosses the pedestrian crossing 42A in the direction of arrow B in the figure, the pedestrian attribute information transmitted from the pedestrian 44 is received by the pedestrian crossing information output device 46A1. Therefore, the pedestrian crossing information output device 46A1 can detect that the pedestrian 44 crosses the pedestrian crossing 42A in the direction of arrow B in the figure.

  The communication between the pedestrian crossing information output device 46 and the IC tag 50 can be performed by, for example, microwaves, but is not limited thereto.

  As shown in FIG. 6, the pedestrian crossing information output device 46 includes a control unit 60, a transmission / reception unit 62, and a memory 64. The memory 64 stores pedestrian crossing information 66 in advance. The pedestrian crossing information 66 is information for identifying the pedestrian crossing that the pedestrian crossing information output device 46 is in charge of, for example, the pedestrian crossing number previously given to the pedestrian crossing, and the pedestrian crossing information output device 46 detects it. And the direction of travel of the pedestrian. In this case, each pedestrian crossing is given a unique pedestrian crossing number in advance. The information on the direction of travel of the pedestrian can be information corresponding to the direction in which the pedestrian travels, for example. For example, when the upper direction in FIG. 2 is north and the lower side is south, the pedestrian travels in the direction of arrow A in the figure is “north”, that is, from “south” to “north”.

  The pedestrian crossing number is also stored as part of the map data in the car navigation system 26 mounted on the vehicle 30. Further, the information for specifying the pedestrian crossing is not limited to the pedestrian crossing number but may be information such as latitude / longitude indicating the position of the pedestrian crossing.

  When pedestrian crossing information output device 46 receives pedestrian attribute information from pedestrian 44, pedestrian crossing information is generated and transmitted. In addition, the transmission area of pedestrian crossing information is a predetermined range near the intersection, and is a range in which a vehicle entering the intersection or a vehicle entering the intersection can receive.

  Next, as an operation of the present embodiment, the control executed by the control unit 60 of each pedestrian crossing information output device 46 and the control executed by the control unit 12 of the pedestrian detection device 10 are shown in FIGS. This will be described with reference to the flowchart shown.

  First, the control executed by the control unit 60 of the pedestrian crossing information output device 46 will be described. As shown in FIG. 7, in step 100, it is determined whether or not the pedestrian attribute information transmitted from the pedestrian 44 has been received by the transmission / reception unit 62. And when not receiving pedestrian attribute information, it waits until it receives, and when pedestrian attribute information is received, it transfers to step 102.

  In step 102, pedestrian crossing information is generated based on the received pedestrian attribute information. This pedestrian crossing information is, for example, information obtained by adding the pedestrian crossing information 66 stored in the memory 64 to the received pedestrian attribute information. In step 104, the generated pedestrian crossing information is transmitted.

  Next, the control performed by the control part 12 of the pedestrian detection apparatus 10 mounted in the vehicle 30 is demonstrated. This control is executed when the ignition switch of the vehicle 30 is turned on.

  As shown in FIG. 8, in step 200, it is determined whether or not the pedestrian crossing information transmitted from the pedestrian crossing information output device 46 has been received. If pedestrian crossing information has not been received, the process waits until pedestrian crossing information is received. If pedestrian crossing information has been received, the process proceeds to step 202. The vehicle 30 that has entered the intersection receives pedestrian crossing information from the pedestrian crossing information output device 46 that has detected the pedestrian.

  In step 202, the traveling direction of the vehicle 30 is detected. For example, the traveling direction can be detected by detecting on / off of the right turn signal switch 14R and the left turn signal switch 14L. That is, if the right turn signal switch 14R is on, the traveling direction can be determined as the right direction, and if the left turn signal switch 14L is turned on, the traveling direction can be determined as the left direction. It can be determined that the direction is a straight direction.

  The detection of the traveling direction of the vehicle 30 is not limited to the above. For example, it is determined whether or not the rotational angular velocity represented by the rotational angular velocity signal output from the yaw rate sensor 16 is equal to or greater than a predetermined right turn threshold or greater than a predetermined left turn threshold. It may be determined that the traveling direction is the right direction or the left direction.

  Further, it is determined whether the steering angle of the steering of the vehicle 30 represented by the steering angle signal output from the steering angle sensor 18 is greater than or equal to a predetermined right turn threshold or greater than a predetermined left turn threshold. You may make it judge that the advancing direction is a right direction or a left direction when it is more than a threshold value. As described above, when the traveling direction is determined based on the output signal from the yaw rate sensor 16 or the steering angle sensor 18, each threshold value is reliably determined if the rotational angular velocity or steering angle detected by each sensor is equal to or greater than this value. It is set to a value that can be determined to be turning right or left.

  In step 204, it is determined whether or not there is a pedestrian on the pedestrian crossing in the traveling direction of the vehicle 30. That is, when the traveling direction is a straight traveling direction, it is determined whether or not there is a pedestrian on the pedestrian crossing ahead. When the traveling direction is the right direction or the left direction, the vehicle 30 is turned right or left. It is determined whether there is a pedestrian on the pedestrian crossing.

  Specifically, the pedestrian crossing number of the pedestrian crossing in the direction of travel is identified, and the identified pedestrian crossing number is compared with the pedestrian crossing numbers included in all the received pedestrian crossing information to match each other. Determine whether crossing information exists. If there is pedestrian crossing information with the same pedestrian crossing number, it can be determined that there is a pedestrian at the pedestrian crossing indicated by the pedestrian crossing number.

  The pedestrian crossing number can be specified by the car navigation system 26, for example. For example, the correspondence between the pedestrian crossing number and the position data indicating the position (latitude, longitude, etc.) of the pedestrian crossing is stored in advance in the recording medium constituting the car navigation system 26 as part of the map data, and the vehicle. Based on the current position of 30 and the traveling direction detected in step 202, the pedestrian crossing number of the pedestrian crossing in the traveling direction of the vehicle 30 can be specified.

  If it is determined that there are no pedestrians on the pedestrian crossing in the traveling direction of the vehicle 30, the process returns to step 200 and the same processing is repeated, and if there are pedestrians on the pedestrian crossing in the traveling direction of the vehicle 30. If so, the process proceeds to step 206.

  In step 206, warning processing is performed. Specifically, for example, the warning device 24 notifies the driver that a pedestrian is present on the pedestrian crossing in the traveling direction and outputs a warning message indicating the traveling direction of the pedestrian by voice. In addition, since the advancing direction of a pedestrian is contained in pedestrian crossing information, it should just refer to this. Moreover, you may make it alert | report a driver | operator by outputting a warning sound.

  In this way, since the warning is given only when there is a pedestrian on the pedestrian crossing other than the traveling direction of the vehicle 30 and there is a pedestrian on the pedestrian crossing in the traveling direction, the driver accurately recognizes the surrounding situation. can do. For example, in FIG. 2, the vehicle 30 is easy to recognize a pedestrian 44 walking in the direction of arrow B in the figure on the pedestrian crossing 42A, but is difficult to recognize the pedestrian 44 walking in the direction of arrow A in the figure. In the embodiment, since the traveling direction of the pedestrian is also notified, the driver can surely recognize the pedestrian 44 that tends to be a blind spot. Further, the electric field area E formed by the pedestrian crossing information output device 46 to drive the IC tag 50 of the pedestrian includes not only the pedestrian crossing but also a part of the area where the pedestrian waits before crossing the pedestrian crossing. Because it is a range, not only pedestrians on the pedestrian crossing but also pedestrians who are about to walk on the pedestrian crossing can be detected from now on, and the driver can more reliably recognize pedestrians that are likely to become blind spots. Can do.

  In addition, the warning message not only indicates that there are pedestrians on the pedestrian crossing in the direction of travel, but also refers to the pedestrian attribute information included in the pedestrian crossing information, so that the pedestrian's physique and gender (adult or child) Or male or female). When outputting a warning sound, the driver can recognize the physique and gender of the pedestrian by appropriately changing the tone color and length of the warning sound. In this way, by notifying the driver of the pedestrian's physique and gender, the driver accurately recognizes that, for example, if the pedestrian is a child, he must drive more carefully. Can do.

  The warning process is not limited to this as long as it can call the driver's attention. For example, the car navigation system 26 is notified of the pedestrian crossing number of a pedestrian crossing where a pedestrian exists, and a navigation screen displaying a mark indicating the presence of a pedestrian at that position, a mark indicating the pedestrian's traveling direction, and the like is displayed. You may make it make it.

  In addition, the warning device 24 is configured by a so-called head-up display that projects an image onto the windshield of the vehicle 30, and a warning mark or warning message indicating that there is a pedestrian on the pedestrian crossing in the traveling direction or the traveling direction of the pedestrian. Etc. may be displayed on the head-up display.

  In addition, the warning device 24 is configured by a vibration device that vibrates a portion of the driver's body, such as a seat back (backrest) of a seat on which the driver of the vehicle 30 is seated or a headrest, and walks in the traveling direction. When a person is present, the vibration device may be vibrated to warn.

  Further, the warning device 24 is constituted by a tension adjusting device that adjusts the tension of the seat belt that restrains the driver of the vehicle 30 to the seat, and when there is a pedestrian in the traveling direction, the tension of the seat belt is adjusted by the tension adjusting device. You may make it warn by strengthening.

  Further, the warning device 24 is constituted by a current supply device that supplies a weak current to the steering of the vehicle 30, and when a pedestrian is present in the traveling direction, the current supply device is operated to cause the weak current to flow to the steering, and driving You may make it warn by giving a slight electric shock to a person's hand. Furthermore, the above warning methods may be combined.

Thus, in this embodiment, the advancing direction of the vehicle 30 of the pedestrian who walks a pedestrian crossing is detected from the pedestrian crossing information output apparatus 46 provided in the intersection side, and the safety | security of the pedestrian in an intersection is improved. In this embodiment, microwaves are used for communication between the crossing information output device 46 and the IC tag 50. However, the present invention is not limited to this, and other types of electromagnetic waves such as millimeter waves and infrared rays are used. You may communicate.

  In the present embodiment, the case where the IC tag 50 operates based on the electric power obtained by receiving the predetermined electromagnetic wave output from the pedestrian crossing information output device 46 and electromagnetic induction has been described. A power source (lithium battery or the like) for driving the tag 50 may be built in the shoe 48A of the shoe 48 in advance, and the IC tag 50 may be driven by this power source. In this case, for example, pedestrian attribute information is periodically output from the IC tag 50. This eliminates the need to output a predetermined electromagnetic wave for driving the IC tag 50 from the pedestrian crossing information output device 46.

  Moreover, although this embodiment demonstrated the case where IC tag 50 was incorporated in the shoe | claw of a pedestrian's shoe, it was built in so that the pedestrian attribute information transmitted from IC tag 50 might always face the advancing direction of a pedestrian. If possible, it is not limited to this. For example, the IC tag 50 is built in a thing that always faces a specific direction when a pedestrian wears it, such as a belt buckle part, a hat collar, a frame of glasses, or a part of the front side of clothes. It may be.

It is a block diagram which shows schematic structure of the pedestrian detection apparatus which concerns on this invention. It is a top view of an intersection. It is a figure for demonstrating an electric field area. It is a side view shown in the state where a part of pedestrian's shoes was fractured. It is a block diagram which shows schematic structure of an IC tag. It is a block diagram which shows schematic structure of a pedestrian crossing information output device. It is a flowchart of the control routine performed by the control part of a pedestrian crossing information output device. It is a flowchart of the control routine performed by the control part of a pedestrian detection apparatus.

Explanation of symbols

10 pedestrian detection device 12 control unit 14R right turn signal switch (traveling direction detection means)
14L Left turn signal switch (traveling direction detection means)
16 Yaw rate sensor (traveling direction detection means)
18 Steering angle sensor (traveling direction detection means)
20 Operation part 22 Status display part 24 Warning device (notification means)
26 Car navigation system (notification means)
28 Receiving part (vehicle side receiving means)
30 Vehicle 40 Intersections 42A-42D Crosswalk 44 Pedestrians 46A1-D2 Pedestrian crossing information output device 50 IC tag (transmitting device)

Claims (13)

A transmission device attached to an object worn by a pedestrian and transmitting a pedestrian signal indicating the presence of the pedestrian;
Road-side receiving means provided on the road side for receiving the pedestrian signal transmitted from a pedestrian crossing the road, and pedestrian progress of the pedestrian crossing the road based on the received pedestrian signal A pedestrian crossing information output device including transmission means for generating pedestrian crossing information including a direction and transmitting the information to a vehicle entering the intersection;
Vehicle-side receiving means provided in the vehicle for receiving the pedestrian crossing information, and the presence of the pedestrian crossing the road and the pedestrian traveling direction based on the pedestrian crossing information, A pedestrian detection device including notification means for notification toward
Pedestrian detection system with   The pedestrian detection system according to claim 1, wherein the pedestrian signal is a signal including at least one of information on the pedestrian's physique and information on gender.   The pedestrian detection system according to claim 1 or 2, wherein the pedestrian wears shoes, and the transmitting device is built in the pedestrian shoes.   The pedestrian signal transmitted from the transmitting device has directivity, and the road-side receiving means is provided at both ends in the transverse direction of the road, respectively. A pedestrian detection system given in any 1 paragraph. A pedestrian attached to an object worn by a pedestrian and transmitting a pedestrian signal indicating the presence of the pedestrian, and the pedestrian signal provided on the road side and transmitted from a pedestrian crossing the road And generating pedestrian crossing information including a pedestrian traveling direction of the pedestrian crossing the road based on the received pedestrian signal, and transmitting it to the vehicle entering the intersection A pedestrian crossing information output device including a transmitting means, and a pedestrian detection device mounted on the vehicle in a pedestrian detection system including:
Vehicle-side receiving means for receiving the pedestrian crossing information;
Based on the pedestrian crossing information, informing means for informing the occupant of the vehicle of the presence of the pedestrian crossing the road and the pedestrian traveling direction;
A pedestrian detection device comprising:   6. The traveling direction detection means for detecting the traveling direction of the vehicle, wherein the notification means notifies only when there is a pedestrian crossing the road in the traveling direction of the vehicle. Pedestrian detection device.   The pedestrian detection according to claim 5 or 6, wherein the notification means includes a voice output means, and outputs a warning message indicating the presence of a pedestrian crossing the road and the pedestrian traveling direction. apparatus.   8. The system according to claim 5, wherein the notification unit includes a car navigation system, and displays on the map a mark indicating the presence of a pedestrian crossing the road and the traveling direction of the pedestrian. The pedestrian detection device according to item 1.   The informing means includes a head-up display that projects an image on a windshield of the vehicle, and projects a mark indicating the presence of a pedestrian crossing the road and the pedestrian traveling direction onto the windshield. The pedestrian detection device according to any one of claims 5 to 8.   The informing means includes a vibration device that vibrates a part of the vehicle where a part of a passenger's body contacts, and vibrates the vibration device when there is a pedestrian crossing the road. The pedestrian detection device according to any one of claims 5 to 9.   The informing means includes a tension adjusting device that adjusts a tension of a seat belt that restrains an occupant of the vehicle, and increases the tension of the seat belt when there is a pedestrian crossing the road. The pedestrian detection device according to any one of claims 5 to 10.   The informing means includes a current supply device that supplies a weak current to a steering wheel that steers the vehicle, and supplies a weak current to the steering wheel when a pedestrian crossing the road exists. The pedestrian detection device according to any one of claims 5 to 11.   The pedestrian detection device according to any one of claims 6 to 12, wherein the traveling direction detection means is at least one of a winker switch, a yaw rate sensor, and a steering angle sensor of the vehicle. .

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