JP2011163979A - Reception control device and reception control method of vehicle-mounted device - Google Patents

Abstract

An object of the present invention is to provide a technology capable of achieving both safety and convenience with a simple configuration in input control of an in-vehicle device.
Using a distance image, presence / absence of an operation, identification of an operator, and determination of eligibility are continuously performed. And according to the driving | running | working state of a vehicle, an operator, and eligibility, operation reception is restrict | limited according to a predetermined rule. In addition, it may be configured to further improve accuracy by further using a modulated light image calculated from the charge acquired at the same time as the distance image in the determination of suitability.
[Selection] Figure 1

Description

  The present invention relates to a control technique for an in-vehicle device. In particular, the present invention relates to a control technology for a device such as a car navigation device that is restricted in operation according to a traveling state of a vehicle and an operator.

  Audio devices, car navigation devices, and the like mounted on vehicles are required to perform complicated operations as their functions increase. When performing an operation, it is necessary to pay attention to the screen. Therefore, in consideration of safety, operations during traveling are limited. Such restriction of operation is performed using signals from a vehicle speed sensor, a brake sensor, and the like, and thus is restricted regardless of the operator. If it is a restriction | limiting from a viewpoint of safety, it is not necessary to restrict | limit operation other than a driver | operator, and the convenience will be impaired to that extent.

  In order to reduce unnecessary restrictions from the viewpoint of convenience, a navigation device is provided with a position detection sensor that detects an operator's seating direction and controls to accept an operation from the passenger seat (for example, Patent Document 1). reference.). In addition, there is a timer whose function is limited in time (see, for example, Patent Document 2). Further, there is one that is discriminated by an identification signal given to each sheet (for example, see Patent Document 3).

  On the other hand, from the viewpoint of safety, it is better to limit the operation by children, etc., even if it is not a driver. This does not matter whether the vehicle is running or stopped. As a method for identifying the physique and the like of the occupant, there is a method in which the interior of a vehicle is photographed to obtain a two-dimensional image and a distance image, and these images are used for identification (see, for example, Patent Document 4 and Patent Document 5).

Japanese Patent Application Laid-Open No. 07-306055 Japanese Patent Laying-Open No. 2005-43064 Japanese Patent Application Laid-Open No. 07-103778 Japanese Patent Laid-Open No. 02-224185 JP 2007-198929 A

  In the technique disclosed in Patent Document 1, since the operator is determined only in the direction in which the operation instruction is received, the driver accepts the operation when the driver turns the arm to the passenger seat side. Further, when there is an object in the vicinity of the sensor, the operator cannot correctly detect it. With the technique disclosed in Patent Document 2, anyone can perform an operation outside the time limit. In the technique disclosed in Patent Document 3, a means for applying an identification signal must be provided for each sheet, which increases the system. In the techniques disclosed in Patent Document 4 and Patent Document 5, since the normal image and the distance image are acquired independently, a configuration for associating them is necessary. And although large-scale processing is required, the accuracy is not high. Further, the determined occupant cannot be associated with the operator of the in-vehicle device.

  In any case, there are various problems, and depending on the driving state of the vehicle, the control from not accepting operations from unqualified persons and accepting operations from qualified persons is low and safety is low. And convenience cannot be achieved.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a technology capable of achieving both safety and convenience with a simple configuration in input control of an in-vehicle device.

  In the present invention, presence / absence of an operation, identification of an operator, and determination of suitability are continuously performed using a distance image. And according to the driving | running | working state of a vehicle and an operator, according to a predetermined rule, operation reception is restrict | limited. Moreover, you may further use the modulated light image calculated from the electric charge acquired simultaneously with the distance image for discrimination | determination of eligibility.

  Specifically, a reception control device that controls reception of an operation of an in-vehicle device that performs processing according to an operation from an operator, and that determines whether or not the vehicle on which the in-vehicle device is mounted is traveling State determination means, image acquisition means for acquiring a distance image, operation presence / absence determination means for determining presence / absence of an operation using the distance image, operator determination means for determining an operator using the distance image, Signal output means for outputting a restriction signal for restricting the acceptance of an operation according to the determination result of the traveling state determination means and the determination result of the operator determination means, and the signal output means outputs the restriction signal In this case, a reception control device is provided that limits reception of the operation.

  An on-vehicle apparatus reception control method for restricting the reception of an operation from an operator for the on-vehicle apparatus, the distance image acquiring step for acquiring a distance image, and an operation for determining presence / absence of an operation using the distance image When it is determined that there is an operation in the presence / absence determination step and the operation presence / absence determination step, an operator determination step for determining an operator on the distance image, and whether or not the vehicle on which the in-vehicle device is mounted is running. A reception control method comprising: a traveling state determination step for determining; and an acceptance control step for restricting the acceptance of operations according to the determination result of the operator determination step and the determination result of the traveling state determination step. provide.

  ADVANTAGE OF THE INVENTION According to this invention, in input control of a vehicle-mounted apparatus, both safety and convenience can be achieved with a simple configuration.

(A) is a schematic block diagram of the navigation apparatus of 1st embodiment, (b) is a functional block diagram of a reception control part. (A), (b) is explanatory drawing for demonstrating the installation position of the distance image sensor of 1st embodiment, and a navigation apparatus. (A), (b) is explanatory drawing for demonstrating the outline | summary of the operation determination processing by the operation presence determination part of 1st embodiment. It is explanatory drawing for demonstrating the method of calculating real length from the pixel count of a distance image. It is explanatory drawing for demonstrating an example of the restriction | limiting database of 1st embodiment. It is a flowchart of the reception control process of 1st embodiment. It is explanatory drawing for demonstrating the other example of the restriction | limiting database of 1st embodiment. It is a functional block diagram of the reception control part of 2nd embodiment. It is a flowchart of the reception control process of 2nd embodiment.

<< First Embodiment >>
Hereinafter, a first embodiment to which the present invention is applied will be described. Hereinafter, in all the drawings for explaining the embodiments of the present invention, those having the same function are denoted by the same reference numerals, and repeated explanation thereof is omitted.

  The overall configuration of the in-vehicle device according to the present embodiment will be described by taking a navigation device as an example. FIG. 1A is a schematic configuration diagram of the navigation device of the present embodiment. The navigation device 100 of this embodiment includes a navigation processing unit 110, an input device 120, an output device 130, a vehicle state sensor receiving unit 140, and an acceptance control unit 150.

  The input device 120 and the output device 130 constitute an interface with the operator. The input device 120 receives an operation from the operator, and the output device 130 notifies the operator of the processing result by the navigation device 100. The input device 120 is an operation button, a switch, a touch panel, or the like, and the output device 130 is a display device, an audio output device, or the like. The display device may also serve as the input device 120 and the output device 130.

  The vehicle state sensor receiving unit 140 receives signals from various sensors that are included in the vehicle and detect various states of the vehicle. In the present embodiment, the vehicle state sensor includes a vehicle speed sensor that detects the speed of the vehicle and outputs a vehicle speed signal corresponding to the speed, and the vehicle state sensor receiver 140 receives the vehicle speed signal output from the vehicle speed sensor. And output to the reception control unit 150.

  The navigation processing unit 110 performs navigation processing using navigation data such as map data stored in advance and sensor signals received by the vehicle state sensor receiving unit 140 in accordance with instructions from the operator input via the input device 120. And output the result to the output device 130.

  The reception control unit 150 limits the reception of operations to the navigation device 100 according to the operator and the traveling state of the vehicle. The acceptance is restricted by outputting a restriction signal. FIG. 1B is a functional block diagram of the reception control unit 150 of the present embodiment. As shown in FIG. 1B, the reception control unit 150 of the present embodiment realizes reception control, as shown in FIG. 1B, a traveling state determination unit 210, an image acquisition unit 220, a scanning presence / absence determination unit 230, and an operator determination. Unit 240, eligibility determination unit 250, and signal output unit 260, and controls the operation of each unit and outputs a restriction signal according to the conditions. Further, a restriction database (restriction DB) 270 that holds rules for outputting restriction signals is further provided.

  The traveling state determination unit 210 determines whether the vehicle on which the navigation device 100 is mounted is in a traveling state or a stopped state based on the vehicle speed signal received from the vehicle state sensor reception unit 140. As a determination result, when the vehicle speed is 0, a stop signal indicating stop is output as vehicle speed information, and a travel signal indicating that the vehicle is traveling is output otherwise.

  The image acquisition unit 220 includes a distance image sensor 221 and an image generation unit 222, and acquires an image in the vehicle. In this embodiment, a distance image is acquired as an image.

  The distance image sensor 221 according to the present embodiment accumulates incident light including reflected light, which is obtained by reflecting modulated light irradiated by the optical flight-type distance image sensor, on an object in a plurality of charge accumulation units provided for each pixel. To do. The distance image sensor 221 is arranged at a position where the input device 120 of the navigation device 100 and images of all occupants in the vehicle can be acquired. For example, as shown in FIG. Here, FIG. 2A is an image diagram for explaining a position where the distance image sensor 221 is arranged in the vehicle, and FIG. 2B shows a relationship between the occupant 500 and the distance image sensor 221. It is a figure for doing.

  The image generation unit 222 reads out the charges accumulated in the charge accumulation unit of the distance image sensor 221 every predetermined time, and generates a distance image.

  Here, a distance image generation method using the distance image sensor 221 and the image generation unit 222 of this embodiment will be briefly described.

  The distance image sensor 221 according to this embodiment includes a light source that irradiates modulated light to a target space, and a light receiving unit that receives incident light including reflected light of the modulated light emitted from the light source and converts the incident light into electric charges. In the light receiving unit, photoelectric conversion elements that convert the received light amount into the charge amount are arranged in correspondence with the pixels of the distance image. The electric charge obtained by each photoelectric conversion element is divided into four charge accumulating units included in each photoelectric conversion element by dividing a modulation period into four equal parts (for example, between 0 degree and 90 degrees, 90 degrees to 180 degrees). Between 180 degrees and 270 degrees, and between 270 degrees and 0 degrees).

The image generation unit 222 according to the present embodiment uses the amount of charges accumulated in the four charge accumulation units (in order, C1, C2, C3, and C4) every predetermined time Δt, and the distance value D of each pixel. Is calculated. The distance value D is first calculated according to the following equation (1) by calculating the phase difference φ according to the following equation (1) and using the phase difference φ.
φ = tan ⁻¹ ((C1−C3) / (C2−C4)) (1)
D = φ / 2π × c / 2f (2)
Here, c is the speed of light and f is the modulation frequency. As described above, the image acquisition unit 220 acquires a distance image for each Δt.

  The operation presence / absence determination unit 230 determines the presence / absence of an operation in accordance with an instruction from the reception control unit 150 based on the distance image generated by the image generation unit 222. For example, every time a distance image is generated, the operation presence / absence determining unit 230 sets a distance value in a predetermined range d1 and a predetermined value in a region within a predetermined distance D1 from the input device 120 on the generated distance image. It is determined whether or not there is a pixel group having an area greater than or equal to the size S1. When there is a pixel group, it is determined that an operation by the operator's hand is being performed (operation is present), and a signal for specifying the pixel group is output. The position of the input device 120 is calculated from data of the arrangement position of the distance image sensor 221 and the arrangement position of the navigation device 100 that are held in advance.

  FIG. 3 is an example of a distance image. Here, the darker the color, the smaller the distance value in each pixel. The operation presence / absence determination unit 230 determines that there is an operation when there is a pixel group 310 having an area S1 or more that is approximately the same distance and whose distance value difference with the distance image sensor 221 is within D1. Note that whether or not the distances are substantially the same is determined by whether or not the difference between the distance values falls within a predetermined value d1. The area S1 is set to such an extent that the size of an adult's hand can be discriminated, for example. For example, in the case of FIG. 3A, it is determined that there is no operation, and in the case of FIG. 3B, it is determined that there is an operation.

  When the information for specifying the pixel group 310 is received, the operator determination unit 240 specifies the pixel group 320 as an operator on the distance image in which the presence or absence of the operation is determined, and determines the operator. Here, it is determined whether or not the user is a driver. Then, the determination result is output as operator information.

  In the present embodiment, a pixel group 320 that is continuous with the pixel group 310 on the distance image and has a predetermined area S2 or more at substantially the same distance is identified as the operator. Then, based on the distance value D0 of the pixel group 320 determined to be an operator and / or the area T0 on the image, it is determined whether the operator is a driver or the other.

  Whether or not the distances are substantially the same is determined by whether or not the difference between the distance values falls within a predetermined value d2. The area S2 is, for example, such that the size of an adult moving object can be determined. The distance value D0 used for the operator's discrimination is set or calculated from the relationship between the distance image sensor 221 and the seat position in the vehicle. The region T0 is set in advance according to the shooting range determined by the arrangement position of the distance image sensor 221.

  For example, the distance between the distance image sensor 221 and the backrest of the driver seat or the passenger seat is D0. In this case, if the distance value of the pixel group 320 is D0 or more, it is determined that the occupant is a rear seat, and if it is smaller than D0, the operator is determined to be a driver or a passenger in the passenger seat. In the distance image, a region where the handle is present from the center is T0. When it is determined that the driver is a driver or a passenger in the front passenger seat, if more than half of the pixel group 320 exists in the area T0 in the distance image, it is determined that the driver is present, and if it exists in the opposite area, it is determined as a passenger in the passenger seat. To do. According to the above procedure, it is determined whether the driver is the driver or the other (others).

  In the case of the example of FIG. 3B, the operator determination unit 240 first identifies a pixel group 320 that is data continuous to the pixel group 310 and has an area S2 or more that is substantially the same distance as the operator. Since the distance value of the pixel group 320 is within D0, it is determined that the driver is a driver or a passenger on the front passenger seat. Next, since the pixel group exists in a region opposite to the region T0 on the distance image, it is determined that the passenger is a passenger in the passenger seat. Based on this determination result, the operator determination unit 240 outputs a signal indicating that it is not a driver (others).

  When the operator specified by the operator determination unit 240 is other than the driver (others), the eligibility determination unit 250 determines whether or not the operator has eligibility for operation, and determines the determination result as operator information. Output as. In the present embodiment, the suitability is determined based on whether the age is appropriate for the operation of the in-vehicle device. The determination is made based on the height (sitting height) of the operator. The operator information output here is either another qualified person or another unqualified person.

Here, a method for specifying the height (sitting height) of the operator using the distance image will be described. FIG. 4 is a diagram for explaining a method of calculating the actual length (actual length) from the length (number of pixels) on the distance image. In the distance image, the length (number of pixels) of the object in the direction in which the actual length is to be measured is x, the pixel value (distance value) of an intermediate pixel in the same direction is D, and the focal length of the distance image sensor 221 is f. Then, the actual length a is represented by the following formula (3).
a = ((D−f) / f) × x (3)

  The eligibility determination unit 250 of the present embodiment uses this relationship to count the number of pixels in the maximum length direction in the distance image of the pixel group 320 extracted by the operator determination unit 240, and the expression (3) Thus, the actual length a corresponding to the sitting height of the operator is calculated. If the sitting height (actual length) a is equal to or greater than a predetermined value, it is determined that the operator has reached an appropriate age and is qualified, and the determination result is output. Note that rules for determining eligibility can be arbitrarily set.

  The signal output unit 260 outputs a restriction signal that restricts the acceptance of operations according to the vehicle speed information and the operator information. Whether or not to output a restriction signal corresponding to the vehicle speed information and the operator information is determined according to a rule defined in the restriction DB 270.

  An example of the restriction DB 270 is shown in FIG. As shown in this figure, in the restriction DB 270, whether or not to output a restriction signal in association with operator information is registered for each vehicle speed information. The signal output unit 260 of the present embodiment uses any one of stop and travel as vehicle speed information, and any one of three types of drivers, other qualified persons, and other unqualified persons as operator information. In response to the restriction DB 270, it is determined whether or not to output a restriction signal. For example, in the case of the example shown in this figure, when the operator information is a driver and the vehicle speed information indicates that the vehicle is traveling, and when the operator information is ineligible, a restriction signal is output.

  The restriction DB 270 is defined and registered in advance. Under what conditions the limit signal is output can be arbitrarily set.

  Next, the flow of reception control processing by the reception control unit 150 of this embodiment will be described. FIG. 6 is a process flow of the admission control process of this embodiment. For example, the reception control unit 150 of the present embodiment starts the reception control process by starting the engine. Further, here, a case where the operation presence / absence determination unit 230 determines the presence / absence of an operation at the timing when the image acquisition unit 220 generates a distance image will be described as an example.

  The reception control unit 150 causes the image acquisition unit 220 to start acquiring a distance image. Then, every time a distance image is acquired, that is, every Δt (step S1101), the operation presence / absence determination unit 230 repeatedly determines whether or not there is an operation until it is determined that there is an operation (step S1102).

  When receiving the operation presence signal from the operation presence / absence determining unit 230, the reception control unit 150 causes the traveling state determining unit 210 to determine the traveling state (step S1103) and notifies the signal output unit 260 of the determination result as vehicle speed information. In addition, the operator identifying unit 240 is notified of a signal for specifying a pixel group.

  And the reception control part 150 makes the operator discrimination | determination part 240 discriminate | determine whether an operator is a driver | operator (step S1104). When the determination result is other than the driver (others), the reception control unit 150 notifies the eligibility determination unit 250 of a signal for specifying the pixel group.

  Then, the reception control unit 150 causes the eligibility determination unit 250 to determine the eligibility of the operator (step S1105). Then, the result is notified to the signal output unit 260 as operator information.

  On the other hand, if the determination result is the driver in step S1104, the reception control unit 150 notifies the signal output unit 260 of the determination result as operator information.

  When the signal output unit 260 receives both the operator information and the vehicle speed information, the reception control unit 150 causes the signal output unit 260 to refer to the restriction DB 270 to determine whether the restriction signal output is applicable (step S1106). ). If applicable, the reception control unit 150 outputs a restriction signal (step S1107). On the other hand, if not applicable, the reception control unit 150 ends the process without outputting anything.

  Through the above processing, the reception control unit 150 of the present embodiment outputs a restriction signal according to the running state of the vehicle and the operator, and restricts the reception of operation inputs of the navigation device 100.

  As described above, according to this embodiment, the presence / absence of an operation is determined using a distance image. In addition, the operator is determined by a pixel that is continuous with the pixel determined to be operated. Therefore, the operator can be determined with high accuracy. That is, even when the driver performs an operation by turning his / her arm toward the front passenger seat or when there is an object in the vicinity of the sensor, the operator is not erroneously recognized. Furthermore, the determination of suitability is also performed using the distance image that has determined the operator as it is. Therefore, the operator's operation suitability can be determined with high accuracy with a simple configuration.

  Moreover, according to this embodiment, since the presence or absence of the restriction | limiting of operation is determined according to a predetermined rule with the information which shows a driving | running | working state, a desired restriction | limiting can be performed with a simple structure with high precision. Therefore, highly reliable operation input control can be performed with a simple configuration.

  Therefore, according to the present embodiment, with a simple configuration, it is possible to accurately limit the acceptance of input operations in accordance with the traveling state of the vehicle and the operator, and both safety and convenience can be achieved.

  In the above-described embodiment, control is performed so that the operation is permitted if the passenger is a passenger other than the driver and is qualified for the operation, but the control is not limited thereto. For example, in the case of an operation by a passenger in the rear seat, control may be performed so as to be rejected during traveling regardless of the qualification of the passenger. A control method in this case will be described below.

  In this case, the operator determination unit 240 further has a function of determining the seat position of the operator. That is, in the reception control process, it is determined in step S1104 whether the driver is a passenger, a passenger in the passenger seat, or a passenger in the rear seat. Further, after the eligibility determination, not only the suitability but also the seat position of the discrimination target occupant is output.

  The signal output unit 260 receives, as operator information, four types of a driver, a passenger seat qualified person, a passenger seat unqualified person, and a rear seat occupant, and determines whether to output a restriction signal. An example of the restriction DB 270 registered in this case is shown in FIG.

  As described above, by determining the seat position of the occupant and providing the restriction DB 270 corresponding thereto, finer operation reception control can be performed.

  Note that the reception control unit 150 may not have all the functions described above. For example, only the operation presence / absence determination unit 230 and the operator determination unit 240 may be provided, and when it is determined that the user is not a driver, the operation during traveling may not be limited. Or you may comprise so that operation in driving | running | working may not be restrict | limited only when an operator is discriminate | determined from the passenger of a passenger seat.

<< Second Embodiment >>
Next, a second embodiment to which the present invention is applied will be described. The navigation device of this embodiment basically has the same configuration as that of the first embodiment. In the first embodiment, the suitability of whether or not the age is appropriate for the operation is determined based on the height (sitting height). In the present embodiment, a face recognition technique using a modulated light image is further combined with the eligibility determination to improve the accuracy. Hereinafter, a description will be given focusing on the configuration different from the first embodiment.

  The configuration of the reception control unit 150 of this embodiment is basically the same as that of the first embodiment. FIG. 8 is a functional block diagram of the reception control unit 150 of the present embodiment. In the present embodiment, the image generation unit 220A and the eligibility determination unit 250A are different from the first embodiment. That is, the image generation unit 222A of the present embodiment further generates a modulated light image at substantially the same timing as the distance image generation. In addition, the eligibility determination unit 250A of the present embodiment performs eligibility determination using a modulated light image in addition to eligibility determination using a distance image.

A modulated light image generation process by the image generation unit 222A of the present embodiment will be described. The distance image sensor 221 of this embodiment is the same as that of the first embodiment. In the present embodiment, the charge amounts (C1, C2, C3, C4) stored in the four charge storage units are used at the timing when the image generation unit 222 generates the distance image, The pixel intensity value B is calculated.
B = ((C1-C3) ² + (C2-C4) ² ) ^1/2 ) / 2 (4)
Using the calculated intensity value B as a pixel value, a modulated light image is generated.

  As described above, in the present embodiment, the distance value D and the intensity value B are calculated using the same accumulated charge amount (C1, C2, C3, C4) for each pixel, and the distance image and the modulated light image are respectively obtained. And That is, in the present embodiment, a modulated light image in the same range as the distance image is obtained at the same timing.

  The eligibility determination unit 250A of the present embodiment determines the suitability again using the modulated light image when it is determined as unqualified after determining eligibility using the distance image in the same manner as in the first embodiment. To do. First, the operator's sitting height is calculated from the pixel group 320 extracted by the operator discriminating unit 240 to discriminate suitability. Next, the eligibility of the pixel group corresponding to the extracted pixel group 320 on the modulated light image is determined using an existing face recognition technique. For example, the part corresponding to the face is extracted from the specified pixel group, and the eligibility is determined by determining whether the age is appropriate for the operation of the in-vehicle device, as in the first embodiment.

  In addition, in the existing face recognition technology, each part such as eyes, nose and mouth is extracted from the pixels extracted as the face area and discriminated based on the arrangement balance, etc., and the skeleton is extracted and discriminated by the shape. There are things to do. Any method can be used as long as it is a face recognition technique using an image.

  A processing flow of the reception control process by the reception control unit 150 of the present embodiment is shown in FIG. The acceptance control process of this embodiment is basically the same as that of the first embodiment. However, in step S1101 of the first embodiment, the reception control unit 150 generates not only a distance image but also a modulated light image (step S1201). In step S1105 for determining eligibility, when eligibility is determined on the distance image (step S1202), if it is determined that the eligibility is not appropriate, eligibility is determined on the modulated light image (step S1203). Then, the operator information is output as qualified or unqualified.

  As described above, according to the present embodiment, the suitability is determined using not only the distance image but also the modulated light image. Therefore, eligibility can be determined with higher accuracy.

  In addition, the distance image sensor 221 according to the present embodiment accumulates charges in the four charge accumulation units every period obtained by dividing one modulation period into four equal parts. Then, the image generation unit 222 calculates the distance value D and the intensity value B using them, and generates a distance image and a modulated light image, respectively. Accordingly, it is possible to obtain a distance image and a modulated light image in which the same timing and the same range are taken. For this reason, it is not necessary to associate the shooting range of the distance image with the modulated light image, and a pixel at the same position as the pixel used for the determination on the distance image can be used for the determination as it is on the modulated light image. Therefore, the high accuracy discrimination can be realized with a simple configuration.

  That is, according to the present embodiment, as in the first embodiment, the acceptance of input operations can be accurately limited according to the traveling state of the vehicle and the operator with a simple configuration, which is safe and convenient. And both.

  In the above-described embodiment, a modulated light image is also acquired every time a distance image is acquired, and if it is determined to be ineligible by determination on the distance image, qualification is determined by a pixel group at the same position in the modulated light image. However, it is not limited to this.

  For example, it may be configured to acquire a modulated light image only at a specific timing, such as at the start of traveling, to determine the eligibility of each occupant in the vehicle using an existing face recognition technology, and hold it in association with the seat Good. In this case, as described in the modification of the first embodiment, the operator discriminating unit 240 discriminates up to the operator's seat position, and after determining that the operator does not qualify by the distance image, associates with the corresponding seat. Refer to the eligibility data that is retained and use the results as the final judgment results.

  In each of the above embodiments, the restriction DB 270 is configured to be preset and held, but may be configured so that the user can appropriately input and set it. In this case, the reception control unit 150 includes an input reception interface for the restriction DB 270, and receives registration via this interface. By configuring in this way, desired control can be easily realized simply by changing the registered contents of the restriction DB 270.

  Moreover, in each said embodiment, although the reception control part 150 demonstrated as what the navigation apparatus 100 is provided, it is not restricted to this. The reception control unit 150 may be provided independently of the navigation device 100.

  The distance image sensor 221 may be provided independently of the reception control unit 150 of the present embodiment. In this case, the reception control unit 150 includes a distance image sensor signal receiving unit that receives a signal from the distance image sensor 221, and generates an image using the received charge amount.

  Moreover, in each said embodiment, although the reception control part 150 is performing the said reception control process continuously after engine starting, it is not restricted to this. For example, you may comprise so that it may carry out at a predetermined time interval. In addition, although the operation presence / absence determination unit 230 performs the operation presence / absence determination processing at the timing at which an image is acquired in each of the above embodiments, the present invention is not limited to this. You may comprise so that it may carry out using the newest image at the time at a predetermined time interval. Further, the time interval for performing the determination process before and after it is determined that there is an operation may be changed.

  Moreover, although the traveling state of the vehicle is determined by the vehicle speed signal, the present invention is not limited to this. You may comprise so that it may discriminate | determine with the other information, for example, the signal which shows the state of a parking brake. That is, the state where the parking brake is applied is set to the stop state, and the rest is determined to be traveling.

  Moreover, in each said embodiment, although it has comprised so that a restriction | limiting signal may be output and reception of operation may be restrict | limited by vehicle speed information and operator information, it is not restricted to this. Normally, the acceptance of operations may be limited, and only a combination of predetermined vehicle speed information and operator information may be permitted.

  In each of the above embodiments, each function of the reception control unit 150 excluding the distance image sensor 221 loads a program stored in the storage device into the memory on the information processing device including the CPU, the memory, and the storage device. It is realized by executing. Further, it may be configured by dedicated hardware. Further, the restriction database 270 is constructed on a storage device.

100: Navigation device, 110: Navigation processing unit, 120: Input device, 130: Output device, 140: Vehicle state sensor reception unit, 150: Reception control unit, 210: Traveling state determination unit, 220: Image acquisition unit, 221: Distance image sensor 222: Image generation unit 230: Scanning presence / absence determination unit 240: Operator determination unit 250: Eligibility determination unit 260: Signal output unit 270: Restriction DB 310: Pixel group 320: Pixel Group, 500: Crew

Claims (7)

An acceptance control device that controls acceptance of an operation of an in-vehicle device that performs processing according to an operation from an operator,
Traveling state determining means for determining whether or not the vehicle on which the in-vehicle device is mounted is traveling;
Image acquisition means for acquiring a distance image;
Using the distance image, an operation presence / absence determining means for determining presence / absence of an operation;
An operator discriminating means for discriminating an operator using the distance image;
Signal output means for outputting a restriction signal for restricting acceptance of an operation according to the determination result of the traveling state determination means and the determination result of the operator determination means;
When the signal output means outputs a restriction signal, the acceptance control device restricts acceptance of the operation. The reception control device according to claim 1,
The operator determining means determines whether or not the operator is a driver,
The reception control device, wherein the signal output means outputs the restriction signal when the determination result of the traveling state determination means is traveling and the determination result of the operator determination means is a driver. The reception control device according to claim 1 or 2,
The operator discriminating means further discriminates the seat position of the operator,
The signal output means outputs the restriction signal when the determination result of the traveling state determination means is traveling and the determination result of the operator determination means is a driver or a passenger in the rear seat. Control device. The reception control device according to any one of claims 1 to 3,
The reception control means further includes a suitability determination means for determining the operation suitability of the operator using the distance image when the operator determination means determines that the determination is NO,
The reception control device, wherein the signal output means outputs the restriction signal when the determination result of the qualification determination means is unqualified. The reception control device according to claim 4,
The image acquisition means further acquires a modulated light image,
The admission control device according to claim 1, wherein the eligibility determination means determines the operation eligibility further using the modulated light image when it is determined to be ineligible based on the distance image. A reception control method for an in-vehicle device that restricts reception of operations from an operator for the in-vehicle device,
A distance image acquisition step of acquiring a distance image;
An operation presence / absence determination step for determining the presence / absence of an operation using the distance image;
When it is determined that there is an operation in the operation presence / absence determination step, an operator determination step of determining an operator on the distance image;
A traveling state determination step for determining whether or not the vehicle on which the in-vehicle device is mounted is traveling;
An acceptance control method comprising: an acceptance control step for restricting acceptance of an operation in accordance with a discrimination result of an operator discrimination step and a discrimination result of a traveling state discrimination step. An in-vehicle device that performs processing in response to an operation from an operator,
An in-vehicle device comprising the acceptance control device according to claim 1.

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