JP6432922B1 - Intention display system - Google Patents

Abstract

An intention display system capable of improving communication of intention is provided.
The intention display system 1 includes a distance measuring unit 7 having a sensor unit 71 for detecting a detection object Ot, and a distance determining unit 8 connected to the distance measuring unit 7 to set a specific designated distance range. And information display units 3 and 4 connected to the distance determination unit 8 and illumination units 5 and 6 capable of irradiating the detection object Ot. The distance determination unit 8 determines whether or not the detection target object Ot is within the specified distance range. If the detection target object Ot is within the specified distance range, the information is displayed on the display units 3 and 4 and the illumination unit 5 is displayed. 6 is turned on.
[Selection] Figure 2

Description

  The present invention relates to an intention display system suitable for use in a vehicle.

  Conventionally, for example, when a pedestrian is about to cross a road during operation of the vehicle, the driver of the vehicle is temporarily stopped and manually signaled to prompt the pedestrian to cross. Further, there is a case in which a hand is signaled to an oncoming vehicle that is going to turn right with respect to the own vehicle that is traveling straight and the course is given.

  Furthermore, when changing the driving lane, the rear side of the side glass on the driver's seat is signaled with a hand, and after changing the lane, the hazard lamp blinks in the sense of thanks to the following vehicle. ing.

  However, hazard lamps are also called “emergency flashing indicator lights”, and are used to notify the danger when the vehicle is parked or stopped, or when it becomes out of order due to a malfunction. The driver of the following vehicle may be misunderstood that an emergency has occurred on the road.

  On the other hand, a display device has been proposed in which messages such as “Please” and “Thank you” are transmitted through the rear glass and windshield of the vehicle. Furthermore, a doll is installed in the vicinity of the rear glass, and an intention display is performed by the movement of the doll.

JP-A-5-94138 Japanese Patent Laid-Open No. 10-194039 JP 2003-11720 A JP 2003-81007 A JP 2004-122804 A JP 2005-29113 A JP 2011-126493 A JP 2012-96740 A Utility Model Registration No. 3013635 Utility Model Registration No. 3023027 Utility Model Registration No. 3207772

However, in the above case, hand cues are difficult to recognize, especially at night, and it is necessary to operate a switch or the like in order to display a message in a display that conveys a message. The problem of impairing operational safety arises.
The present invention has been made in view of the above problems, and an object thereof is to provide an intention display system capable of improving intention transmission.

  The intention display system according to claim 1, a distance measurement unit having a sensor unit that detects a detection target, a distance determination unit that is connected to the distance measurement unit and sets a specific designated distance range, and the distance An information display unit connected to the determination unit and an illumination unit capable of illuminating the detection target, and the distance determination unit determines whether the detection target is within the specified distance range; When the distance is within the specified distance range, information is displayed on the display unit and the illumination unit is turned on.

  As the sensor unit, an ultrasonic sensor is preferably used, but the sensor unit is not limited thereto, and for example, an optical sensor or the like may be used. The connection only needs to be connected regardless of direct or indirect, and means, for example, a state in which a signal can be transmitted. Therefore, it does not ask wired or wireless.

  The intention display system according to claim 2 is the intention display system according to claim 1, wherein a plurality of the specified distance ranges are set, and a plurality of information display units and illumination units are provided correspondingly. It is characterized by being.

The intention display system according to claim 3 is the intention display system according to claim 1 or 2, wherein the distance measurement unit measures a distance of the detection target object at predetermined time intervals, and the distance determination unit includes: When the count number of the distance exceeds a predetermined value, it is determined that the detection target is a stationary object.
According to this invention, it is possible to determine a stationary object and set the display unit and the illumination unit not to operate even when there is a stationary object.

  The intention display system according to claim 4 is the intention display system according to claim 3, wherein a range of ± 3 cm of the distance at which the detection target object is determined to be a stationary object is defined in the display unit and the illumination unit. The non-operation range is set.

The intention display system according to claim 5 is the intention display system according to claim 3 or claim 4, wherein an upper limit is set for the count number, and the total count number for the distance is counted by one every fixed time. It is characterized by subtracting one by one.
According to this invention, when a stationary object moves, a stationary object can be newly determined.

  According to the embodiment of the present invention, it is possible to provide an intention display system that can improve communication of intention.

It is a perspective view which shows the intention display system which concerns on embodiment of this invention. It is a block block diagram which shows the same intention display system. It is a perspective view which shows the state which installed the same intention display system in the vehicle. The case where a display part is seen from the outer side of the vehicle is shown, (a) is the figure seen from the front, (b) is the figure seen from back. It is explanatory drawing which shows operation | movement of the same intention display system. It is explanatory drawing which shows typically operation | movement of the same intention display system (designated distance range A). It is explanatory drawing which shows typically operation | movement of the same intention display system (designated distance range B). It is explanatory drawing which shows typically operation | movement of the same intention display system (determination of a stationary object). It is a flowchart which shows the operation | movement of the initial setting in the same intention display system. It is a flowchart which shows the operation | movement when the normal and stationary object move in the same intention display system. It is a graph which shows the count number with respect to the distance in the same intention display system (determination of a stationary object). It is a graph which shows the count number with respect to the distance in the same intention display system (normal operation | movement). It is a graph which shows the count number with respect to the distance in the same intention display system (operation | movement when a stationary object moves).

  Hereinafter, an intention display system according to an embodiment of the present invention will be described with reference to FIGS. The intention display system of this embodiment is installed in a vehicle, displays information together with a cue of a hand, and displays and transmits the intention of the driver of the vehicle.

FIG. 1 is a perspective view of the intention display system, and FIG. 2 is a block diagram of the intention display system. 3 shows a state where the intention display system is installed in the vehicle, FIG. 4 shows a case where the display unit is viewed from the outside of the vehicle, (a) is a view seen from the front, and (b) is a rear view. It is the figure seen from.
1 and 2, the intention display system 1 includes a main body unit 2, a first display unit 3 and a second display unit 4, and a first illumination unit 5 and a second illumination unit 6. Yes.

  As shown in FIG. 1, the main body 2 is made of a synthetic resin material, has two circular openings on the front side, and has a box-like appearance. Moreover, the 1st illumination part 5 and the 2nd illumination part 6 are arrange | positioned at the upper surface side.

  As shown in FIG. 2, a distance measurement unit 7 and a distance determination unit 8 are provided in the main body unit 2. The distance measuring unit 7 includes a sensor unit 71, a transmission circuit 72, a reception circuit 73, an arithmetic circuit 74 having a counter and the like, and is unitized.

  The sensor unit 71 is an ultrasonic wave transmission / reception module, is composed of an ultrasonic sensor, is of a reflective type, and includes a transmission element 71a and a reception element 71b. The transmitting element 71a and the receiving element 71b are, for example, piezoelectric ceramics. The transmitting element 71a transmits an ultrasonic wave toward the detection target, and the reflected wave is received by the receiving element 71b and converted into a pulse signal. The distance to the object to be detected is measured. Specifically, based on the time required for the ultrasonic wave transmitted from the transmission element 71a to be reflected on the detection target object and the reflected wave to be received by the reception element 71b, from the sensor unit 71 to the detection target object. A distance is calculated.

The transmission element 71a is connected to the arithmetic circuit 74 via the transmission circuit 72, and the reception element 71b is connected to the arithmetic circuit 74 via the reception circuit 73 and the amplifier amp. The arithmetic circuit 74 calculates the distance from the sensor unit 71 to the detection target object by calculating the relationship between the time from when the ultrasonic wave is transmitted until the reflected wave is received and the sound speed.
The transmitting element 71a and the receiving element 71b are arranged so as to face the circular opening of the main body 2.

  A distance determination unit 8 is connected to the distance measurement unit 7. Although the details will be described later, the distance determination unit 8 has a function of determining whether or not the calculation result of the distance is within the range of the measurement distance designated in advance, and outputting according to the result.

In this embodiment, the distance determination unit 8 uses a microcomputer (hereinafter referred to as “microcomputer”) that performs overall control as a control processing unit. The CPU 81 includes a control unit, ROM 82 and RAM 83 which are storage means, and input / output control means 84.
The input / output control unit 14 is electrically connected to the first display unit 3 and the second display unit 4, and the first illumination unit 5 and the second illumination unit 6.

  The 1st display part 3 and the 2nd display part 4 are the same structures, and are formed in the substantially rectangular shape by the panel shape. One surface side is a display surface, and a large number of LED elements are mounted as display elements. Therefore, information on characters, symbols, and figures can be displayed. For example, the first display unit 3 can display a message “Thank you first” and the second display unit 4 can display a message “Thank you”. The first display unit 3 and the second display unit 4 are connected to the main body unit 2 by electric wires.

Specifically, the first illumination unit 5 and the second illumination unit 6 are small spotlights. The spotlight is provided on the upper surface side of the main body 2 via flexible arms 51 and 61. Accordingly, the flexible arms 51 and 61 can be bent to change the light irradiation direction.
The first lighting unit 5 and the second lighting unit 6 may be configured independently of the main body unit 2.

  A power connector 21 for supplying power is connected to the main body 2. The power connector 21 can supply power to the main body 2 side by connecting to the cigarette lighter socket. The main body unit 2, the first display unit 3 and the second display unit 4, the first illumination unit 5 and the second illumination unit 6 are electrically connected by an electric wire or the like. You may make it connect by radio | wireless. Further, a detection target object Ot is shown as a distance measurement object in front of the main body 2 (see FIG. 2).

The intention display system 1 having the above configuration is installed in a vehicle as shown in FIG. Specifically, the main body 2 is arranged on the dashboard with the transmitting element 71a and the receiving element 71b facing the driver's seat side. The first display unit 3 is arranged on the dashboard with the display surface facing forward (see FIG. 4A). Further, the second display unit 4 (not shown in FIG. 3) is arranged on the upper back panel with the display surface directed rearward (see FIG. 4A). In addition, you may make it attach these main-body parts 2, the 1st display part 3, and the 2nd display part 4 using a suction cup etc. suitably.
Next, the basic operation of the present embodiment will be described with reference to FIGS. 5 to 8 are explanatory diagrams showing the operation of the intention display system 1.

  When a driver of a vehicle gives a hand or gives a hand while the vehicle is driving, a hand signal is usually given. The intention display system 1 performs the first display with the hand signal. Information such as “Please come first” or “Thank you” is displayed on the unit 3 or the second display unit 4, and the signaled hand is irradiated with light from the first illumination unit 5 or the second illumination unit 6. .

  As a premise, the storage unit of the distance determination unit 8 includes a distance from the sensor unit 71 of 0.3 m to 0.4 m (hereinafter referred to as “designated measurement distance range A”) and a sensor unit 71 of 0.6 m to 0.8 m. Distance (hereinafter referred to as “designated measurement distance range B”) is set. Further, it is assumed that the seat (stationary object) is placed at a position 0.74 m from the sensor unit 71 in a state where the driver is seated.

The designated measurement distance range A and the designated measurement distance range B display information on the first display unit 3 or the second display unit 4 when a detection target object Ot (a hand in the present embodiment) is interposed in this range. And the distance range in which the first illumination unit 5 and the second illumination unit 6 irradiate the detection object Ot. The first illumination unit 5 and the second illumination unit 6 have their light irradiation directions adjusted so that light is emitted to the hands interposed in the designated measurement distance range A and the designated measurement distance range B.
(Operation for the specified measurement distance range A)

  In the activated state of the intention display system 1, as shown in FIGS. 5 and 6, for example, when the driver gives up the course, he / she raises his hand and urges the driver of the oncoming vehicle to proceed first. . In this case, the driver can display a message such as “Please come first” on the first display unit 3 by inserting his hand into the designated measurement distance range A and signaling it (see FIG. 4A). Light is emitted from the first illumination unit 5.

Specifically, a trigger signal is output from the distance determination unit 8 every predetermined time, that is, every 80 ms, this trigger signal is transmitted to the distance measurement unit 7, an ultrasonic wave is transmitted from the sensor unit 71, and an ultrasonic wave Is reflected by the hand, and the reflected wave is received by the sensor unit 71. The distance data calculated by the arithmetic circuit 74 is determined by the distance determination unit 8 as to whether it is within the designated measurement distance range A or the designated measurement distance range B. Based on this determination result, an output signal is sent from the input / output control means 14. In this case, since the hand distance is in the designated measurement distance range A, a drive signal is sent from the input / output control means 14 to the first display unit 3 and the first illumination unit 5, and “ A message such as “Please come first” is displayed for a certain period of time, and the illumination unit 5 is turned on and light from the first illumination unit 5 is illuminated for a certain period of time. The certain time is preferably about 2 to 3 seconds, for example.
(Operation for specified measurement distance range B)

  This is substantially the same as the above (operation for the designated measurement distance range A). In the activated state of the intention display system 1, as shown in FIGS. 5 and 7, for example, when the driver gives up the course, he / she raises his / her hand toward the rear side of the driver's seat and changes his / her lane To the driver of the following car. In this case, the driver can display a message such as “thank you” on the second display unit 4 by inserting his hand into the designated measurement distance range B and signaling (see FIG. 4B). Light is emitted from the second illumination unit 6.

Specifically, the distance determination unit 8 determines whether the distance data is within the designated measurement distance range A or the designated measurement distance range B. Based on this determination result, an output signal is sent from the input / output control means 14. In this case, since the hand distance is in the designated measurement distance range B, a drive signal is sent from the input / output control means 14 to the second display unit 4 and the second illumination unit 6, and “ A message such as “thank you” is displayed for a certain period of time, and the illumination unit 6 is lit and light is emitted from the second illumination unit 6 to the hand for a certain period of time.
(Judgment of seat seat (stationary object))

  As shown in FIG. 8, if a stationary object such as the seat seat S exists within the distance range of the designated measurement distance range A and the designated measurement distance range B, it is detected and a malfunction occurs. Therefore, the stationary object is determined as will be described later, and the distance range is such that the first display unit 3, the second display unit 4, the first illumination unit 5, and the second illumination unit 6 do not operate. It is set in the storage means of the determination unit 8.

  Specifically, since the seat seat S is disposed at a position 0.74 m from the sensor unit 71, it is determined that the seat seat S is within ± 3 cm before and after that, and the value in this range is inactive. The range is set in the storage means of the distance determination unit 8. The setting of the width within the range of ± 3 cm in the front and rear is to prevent malfunction caused by vibration of the seat S.

Next, with reference to FIGS. 9 to 13, the operation including the initial setting of the intention display system 1 and the determination of the stationary object will be described. FIG. 9 is a flowchart showing an initial setting operation, and FIG. 10 is a flowchart showing an operation when a normal object and a stationary object move. 11 to 13 are graphs showing the number of counts with respect to the distance. The vertical axis indicates the distance of the object to be detected and the corresponding memory number in the distance determination unit 8 (the memory means is assigned the memory means. The horizontal axis represents the count number.
(Initial setting)

  As shown in FIG. 9, when the intention display system 1 is activated, the distance is measured every 80 ms (step S1). As a result of the measurement, the memory No. for the corresponding distance of the detection target is counted up by one (step S2). This step is repeated, and it is determined whether or not the specific memory number exceeds 80 counts (step S3). If the memory number does not exceed 80 counts, the memory is counted up and integrated (step S4), and if it exceeds, the count is not increased (step 5). That is, the upper limit is set so that the maximum count number is up to 80 counts. Further, a process of subtracting 1 from the number of counts in all memory numbers is performed every 640 ms (steps S6 and S7). This is because the presence of the current detection target is accurately reflected in consideration of the movement of the detection target.

  Next, since this initial setting is performed for 10 seconds, it is determined whether or not 10 seconds have elapsed (step S8). If 10 seconds have elapsed, the count number of the same distance exceeds a predetermined value. Specifically, the memory number exceeding 40 counts is specified (step S9), and it is determined that there is a stationary object at the corresponding distance. That is, a stationary object is determined using 40 count as a threshold value. And the range of applicable distance +/- 3cm is set as a non-operation range (step S10). Note that the display unit and the illumination unit do not operate during the initial setting of 10 seconds.

FIG. 11 shows the counts after 1 second, 2 seconds, 3 seconds, and 4 seconds after startup. The “remaining count” is the accumulated count number, and the “new count” means a newly accumulated count. Further, “disappeared count” indicates a case where the count is subtracted from the count number (step S7). Therefore, it is determined that there is a stationary object of the seat S at a distance of 74 cm (memory No. 19). Set to Thereafter, the normal operation is performed.
(Normal operation and movement of seats (stationary objects))

  As shown in FIG. 10, in the normal operation, the operation is the same as the initial setting until step S5. After step S5, it is determined whether or not the specific memory number exceeds 40 counts (step S6). If the count does not exceed 40 counts, it is determined whether the measurement distance is the designated measurement distance range A or the designated measurement distance range B (step S7). When it is the distance range A or the distance range B, it is determined whether or not it is a non-operation range determined as a stationary object in the initial setting (step S8).

  If it is not the non-operating range, it is determined whether or not it is the designated measurement distance range A (step S9). If it is the designated measurement distance range A, a message is displayed on the first display unit 3 for a certain period of time and detected. The operation of irradiating the hand of the object with light from the first illumination unit 5 for a certain time is performed (step S10). When it is not the designated measurement distance range A (designated measurement distance range B), the 2nd display part 4 and the 2nd illumination part 6 operate | move similarly (step S11).

  If the seat (stationary object) has moved, it is determined in step S6 whether or not it has newly exceeded 40 counts, a memory number exceeding 40 counts is identified, and the corresponding distance is determined. Judge that there is a stationary object. And the range of applicable distance +/- 3cm is set as a non-operation range (step S12). Further, a process of subtracting 1 from the number of counts in all memory Nos. Therefore, for the distance measurement every 80 ms, the predetermined time for the subtraction processing is every 640 ms, and the relationship of (predetermined time for distance measurement) <(predetermined time for subtraction processing) is satisfied.

  In normal operation, as shown in FIG. 12, it is determined that there is a stationary object of the seat S at a distance of 74 cm (memory No. 19), and within ± 3 cm before and after this is determined to be a stationary object. The operating range. In addition, a count is seen at a distance of 63 cm (memory No. 8) after X + 1 seconds. This indicates that a hand signal is present in the range of the designated measurement distance range B, and the second display unit 4 and the second illumination unit 6 are operating in response. This count number disappears after X + 3 seconds by the subtraction process (step S14).

When the seat (stationary object) moves, the count number changes as shown in FIG. For example, the seat seat (stationary object) moves from a distance of 74 cm to a distance of 67 cm ahead. The count number at the distance 74 cmm (memory No. 19) is subjected to a subtraction process (step S14) and gradually decreases. In addition, the count number at a distance of 67 cm (memory No. 12) increases, exceeds the threshold of 40 counts, and it is determined that there is a new stationary object, and the range of the corresponding distance ± 3 cm is set as a non-operation range.
In addition, the process and procedure of each step are not particularly limited, and can be changed if the function can be achieved.

As described above, according to the present embodiment, information such as a message can be displayed on the first display unit 3 and the second display unit 4 by a hand signal, and the first illumination unit 5 and the second display unit 4 can be displayed. 2 can illuminate the hand with light, so it can be expected to improve the communication of intentions especially at night, and safety can be increased to reduce traffic accidents. It is possible to provide the intention display system 1 that can contribute to relaxation.
In addition, it is possible to determine a stationary object and set a non-operation range to prevent malfunction. Further, even when a stationary object moves, the determination can be made, and malfunction can be prevented.

In the above-described embodiment, a plurality of designated measurement distance ranges, specifically, two ranges of the designated measurement distance range A and the designated measurement distance range B are set, but one setting may be used. In this case, one display unit and one illumination unit are provided. The sensor unit is preferably an ultrasonic sensor, but is not limited to this. For example, an optical sensor may be used.
Furthermore, the information display unit is not limited to displaying a message using characters, but may be displayed by, for example, a doll operation and a greeting by bowing.

  The intention display system is preferably used by being mounted on a vehicle, but may be used in a security room of a store or a facility, for example. Improvement of communication can be expected by displaying cues and messages by hand.

  The present invention is not limited to the configuration of the embodiment described above, and various modifications can be made without departing from the spirit of the invention. Moreover, the said embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Intention display system 2 ... Main-body part 3 ... 1st display part 4 ... 2nd display part 5 ... 1st illumination part 6 ... 2 illumination parts 7 ··· Distance measurement unit 8 ··· Distance determination unit 71 ··· Sensor unit 71a ··· Transmission element 71b ··· Reception element Ot ··· Detection object (hand)

Claims (5)

A distance measuring unit having a sensor unit for detecting a detection object;
A distance determination unit connected to the distance measurement unit and set with a specific designated distance range;
An information display unit connected to the distance determination unit and an illumination unit capable of irradiating the detection target;
Comprising
In the distance determination unit, it is determined whether or not the detection target is within the specified distance range, and when it is within the specified distance range, information is displayed on the display unit and the illumination unit is turned on. Intention display system characterized by   The intention display system according to claim 1, wherein a plurality of the designated distance ranges are set, and a plurality of information display units and a plurality of illumination units are provided corresponding to the specified distance ranges.   The distance measuring unit measures the distance of the detection object every predetermined time, and the distance determination unit counts up the distance, and when the count number exceeds a predetermined value, the detection object is a stationary object. The intention display system according to claim 1, wherein the intention display system is determined to be present.   The intention display system according to claim 3, wherein a range of ± 3 cm of a distance determined that the detection target is a stationary object is set as a non-operation range of the display unit and the illumination unit.   5. The intention display system according to claim 3, wherein an upper limit is set for the count number, and the total count number for the distance is subtracted by one count every predetermined time.

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