System, program, etc.

Abstract

To provide a system and a program for detecting a photoelectric tube type speed measuring instrument.SOLUTION: An electronic device 10 provided in a vehicle 50 analyzes an imaged image acquired by an imaging part and determines whether or not a related element of a first light transmitter / receiver 31 or a second light transmitter / receiver 33 has been recognized. When the related element is recognized, a user is notified of the approaching to a speed control point or an installation point of a photoelectric tube type speed measuring instrument 30 by displaying a window on which the message of a speed control point is displayed superimposed on a map.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to systems, programs, and the like.

Background Art

[0002] Patent Documents 1 and 2 disclose an electronic device that receives microwaves emitted from a vehicle speed control device and outputs an alarm when it detects the presence of the vehicle speed control device.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] For example, a so-called photoelectric tube type speed measuring machine that transmits and receives measurement light crossing the path of a vehicle is used. As a photoelectric tube type speed measuring machine, there is a mobile orbis that is not fixed to a specific location because the device is lightweight and compact. For example, it is difficult to specify the installation position from GPS or map information. In addition, since it does not irradiate the vehicle with microwaves or laser light to measure the speed, it is difficult to directly detect a photoelectric tube type speed measuring machine as in Patent Documents 1 and 2.

[0005] In view of the above problems, one of the objects of the present invention is to provide a system, a program, and the like that are superior to the prior art, such as providing a system, a program, and the like related to detecting a so-called photoelectric tube type speed measuring machine.

[0006] The object of the present invention is not limited to this, and the applicant also intends to obtain rights by means of divisional applications, amendments, etc. for configurations aimed at obtaining effects resulting from parts of the configurations disclosed in this specification, drawings, etc. For example, in this specification, problems obtained by reinterpreting parts described as "can" or "is possible" as "is a problem" are disclosed in this specification. The problems are described as independent ones, and the applicant also intends to obtain rights by means of divisional applications, amendments, etc. alone for configurations for solving each problem. Even if a problem is implicitly grasped from the description of the specification, the applicant intends to make a part of the configuration described in this specification the scope of claims by amendment or divisional application. In addition, configurations for solving problems obtained by combining these independent problems are also disclosed, and the applicant intends to obtain rights.

Means for Solving the Problems

[0007] (1) The system is provided in a vehicle and has a control unit that performs warning control to warn of an approach to a light transmitter / receiver that transmits and receives measurement light crossing the vehicle's travel path.

[0008] In this way, the user can obtain a warning of an approach to a light transmitter / receiver that transmits and receives measurement light crossing the vehicle's travel path in the vehicle. As the light transmitter / receiver that transmits and receives measurement light crossing the vehicle's travel path, a so-called photoelectric tube type speed measuring device may be used. In this way, the user can be made aware of an approach to a location where a so-called photoelectric tube type speed measuring device using a light transmitter / receiver that transmits and receives measurement light crossing the vehicle's travel path may be installed.

[0009] For example, the photoelectric tube type speed measuring device has a first light transmitter / receiver, a first reflector, a second light transmitter / receiver, a second reflector, and a measurement control unit.

[0010] The first light transmitter / receiver and the second light transmitter / receiver each irradiate measurement light (hereinafter referred to as "first measurement light" and "second measurement light" respectively), and the built-in photoelectric sensor detects the reception of the reflected measurement light. The first reflector is installed opposite to the measurement light irradiation part of the first light transmitter / receiver and can reflect the first measurement light irradiated from the first light transmitter / receiver back toward the first light transmitter / receiver. The second reflector is installed opposite to the measurement light irradiation part of the second light transmitter / receiver and can reflect the second measurement light irradiated from the second light transmitter / receiver back toward the second light transmitter / receiver.

[0011] The first light transmitter / receiver and the second light transmitter / receiver are installed, for example, on one side in the width direction of the roadway, and the first reflector and the second reflector are installed on the other side in the width direction of the roadway. For example, the first light transmitter / receiver and the first reflector and the second light transmitter / receiver and the second reflector are installed such that the measurement light crosses the vehicle's path, that is, the measurement light is irradiated in the width direction of the roadway.

[0012] For example, the first light transmitter / receiver is the light transmitter / receiver for timer start in speed measurement, and the first light transmitter / receiver and the first reflector are installed on the near side (specifically, the rear side with respect to the traveling direction of the roadway (the upstream side with respect to the traveling direction)) on the vehicle's path ahead of the second light transmitter / receiver and the second reflector. The second light transmitter / receiver is the light transmitter / receiver for timer stop in speed measurement, and the second light transmitter / receiver 33 and the second reflector are installed on the far side (the front side with respect to the traveling direction of the roadway) on the vehicle's path behind the first light transmitter / receiver and the first reflector. In this way, the first light transmitter / receiver and the first reflector and the second light transmitter / receiver and the second reflector are installed such that the first measurement light and the second measurement light are parallel to each other front and back and have a certain interval on the vehicle's path (the traveling direction of the roadway).

[0013] For example, the measurement control unit is connected to the first light transmitter / receiver and the second light transmitter / receiver and can receive information from the first light transmitter / receiver and the second light transmitter / receiver. When the measurement control unit detects the passage of the vehicle (strictly speaking, the passage of the front wheels) by the first light transmitter / receiver, it starts the built-in timer, and then when the passage of the vehicle (strictly speaking, the passage of the front wheels) is detected by the second light transmitter / receiver, it stops the timer. The measurement control unit has a function of measuring the speed of the vehicle from the value of this timer, that is, the relationship between the time and the interval from when the front wheels of the vehicle pass through the first measurement light to when they pass through the second measurement light. Further, the measurement control unit may have a function of displaying the speed of the vehicle as a measurement result on the display unit or giving an alarm when the measurement result exceeds a predetermined speed.

[0014] (2) The light transmitter / receiver is preferably used in a speed measuring device. By doing so, it is possible to let the user grasp the approach of the enforcement by the speed measuring device using the light transmitter / receiver.

[0015] In particular, it is advisable to perform warning control to warn of approaching a so-called photoelectric tube type speed measuring device (also referred to as a photoelectric tube orbis) using a light transmitter and receiver. As this warning content, it is better to be a warning indicating approach to a position where there is a speed measuring device of the photoelectric tube type rather than a warning indicating approach to a speed measuring device other than the photoelectric tube type. For example, instead of "There is an orbis 500 m ahead. Caution for speed!", it is better to warn like "There may be a photoelectric tube orbis installed 500 m ahead. Caution for speed!", or "There is a photoelectric tube orbis 500 m ahead. Caution for speed!". It is also okay to say "There may be a photoelectric tube orbis installed 500 m ahead. Caution for speed!", but in particular, it is better to have something that specifically indicates an object related to the photoelectric tube orbis, such as "There is a road cone related to the photoelectric tube orbis 500 m ahead. Caution for speed!", and in particular, it is better to have something that indicates at least some of the objects related to the photoelectric tube orbis. By doing so, it becomes possible for the user to pay attention to that object, easily confirm whether there is actually a photoelectric tube orbis installed at that position, etc. The warning content may be stored in the storage means of the system and output by voice, character string, image, etc. The conventional system stored the position of the speed measuring device itself and gave a warning indicating approach to that speed measuring device, but in the case of a configuration where it is possible to change at any time whether to install a speed measuring device like a photoelectric tube orbis and that does not measure speed by irradiating a vehicle with microwave or laser light, it is possible to give a warning even for approaching a photoelectric tube orbis where the speed measuring device cannot be directly detected.

[0016] (3) The control unit performs the warning control by recognizing related elements related to the light transmitter and receiver. The light transmitter and receiver itself, a reflector, and a measurement control unit are also one of the related elements. By recognizing the light transmitter and receiver itself and related elements related to the light transmitter and receiver in this way, it is possible to detect not only the case where the light transmitter and receiver can be directly detected, but also to detect approach to a speed measuring device using the light transmitter and receiver and give a warning to the user.

[0017] (4) The control unit may perform the alarm control by recognizing a plurality of related elements related to the light transmitter / receiver. By doing so, by recognizing a plurality of related elements and performing alarm control, the probability of misrecognizing the light transmitter / receiver can be reduced, and false warnings can be suppressed.

[0018] (5) The control unit may recognize related elements related to the light transmitter / receiver and perform different alarm controls according to the types of the recognized related elements. For example, different alarm controls are performed when the recognized related element is a load cone relationship and when it is a supervisor relationship. By doing so, by performing different alarm controls according to the types of the recognized related elements, the basis for the approach of the photoelectric type orbis can be clearly shown to the user.

[0019] (6) The control unit may recognize related elements related to the light transmitter / receiver and perform different alarm controls according to the number of the recognized related elements. For example, since the higher the number of recognized related elements, the higher the accuracy of approaching the photoelectric type orbis, the higher the accuracy, the stronger the alarm for alerting the user. By doing so, by performing different alarm controls according to the number of the recognized related elements, a more appropriate alarm can be given to the user.

[0020] (7) The control unit may perform the alarm control by recognizing a load cone installed on the road lane shown in the image obtained by imaging the front of the vehicle as a related element related to the light transmitter / receiver. A small light transmitter / receiver installed on the road is often installed with load cones around it to avoid contact with vehicles and pedestrians. Therefore, by recognizing the load cone as a related element of the light transmitter / receiver from the image obtained by imaging the front of the vehicle, it is possible to indirectly detect the approach to a speed measuring device using a light transmitter / receiver whose installation position is not fixed and which does not irradiate microwaves or laser light to the vehicle to measure the speed.

[0021] (8) The control unit may perform the warning control by recognizing a road cone installed near the road shoulder on the road shown in the image captured of the front of the vehicle as a related element related to the light transmitter and receiver. Road cones arranged around the light transmitter and receiver are often arranged near the road shoulder on the road. Therefore, by recognizing a road cone installed near the road shoulder on the road from the image captured of the front of the vehicle as a related element of the light transmitter and receiver, it is possible to more reliably detect the approach to the speed measuring device using the light transmitter and receiver.

[0022] (9) The control unit may perform the warning control by recognizing a road cone installed on the road side of the separation strip between the road and the sidewalk shown in the image captured of the front of the vehicle as a related element related to the light transmitter and receiver. Road cones arranged around the light transmitter and receiver are often arranged on the road side of the separation strip between the road and the sidewalk. Therefore, by recognizing a road cone installed on the road side of the separation strip between the road and the sidewalk from the image captured of the front of the vehicle as a related element, it is possible to more reliably detect the approach to the speed measuring device using the light transmitter and receiver.

[0023] (10) The control unit may perform the warning control by recognizing a warm-colored road cone shown in the image captured of the front of the vehicle as a related element related to the light transmitter and receiver. Road cones arranged around the light transmitter and receiver are often of warm colors such as red, orange, and yellow. Therefore, by recognizing a warm-colored road cone from the image captured of the front of the vehicle as a related element, it is possible to more reliably detect the approach to the speed measuring device using the light transmitter and receiver.

[0024] (11) The control unit may perform the warning control by recognizing a road cone equipped with a reflective material shown in the image captured of the front of the vehicle as a related element related to the light transmitter and receiver. Road cones arranged around the light transmitter and receiver often have a reflective material. Therefore, by recognizing a road cone equipped with a reflective material from the image captured of the front of the vehicle as a related element, it is possible to more reliably detect the approach to the speed measuring device using the light transmitter and receiver.

[0025] (12) The control unit may perform the warning control by recognizing road cones arranged in the front and rear on the vehicle's driving path reflected in the image captured of the front of the vehicle as related elements related to the transceiver. The transceivers as speed measuring devices are usually arranged in a pair, one in the front and one in the rear for timer start and timer stop, and the road cones arranged around the transceivers are often arranged in a pair, one in the front and one in the rear on the road accordingly. Therefore, by recognizing the road cones arranged in the front and rear on the vehicle's driving path as related elements from the image captured of the front of the vehicle, it is possible to more reliably detect the approach to the speed measuring device using the transceivers.

[0026] (13) The control unit may perform the warning control by recognizing road cones arranged in the front and rear with a distance of 3 m or more between them on the vehicle's driving path reflected in the image captured of the front of the vehicle as related elements related to the transceiver. The transceivers as speed measuring devices have a determined interval between the timer start and the timer stop for speed measurement, and this interval is often 3 m. Therefore, the road cones arranged around the transceivers are often arranged in a pair, one in the front and one in the rear with a distance of 3 m or more between them accordingly. Therefore, by recognizing the road cones arranged in the front and rear with a distance of 3 m or more between them on the vehicle's driving path as related elements from the image captured of the front of the vehicle, it is possible to more reliably detect the approach to the speed measuring device using the transceivers.

[0027] (14) The control unit may perform the warning control by recognizing road cones installed in the no-parking zone reflected in the image captured of the front of the vehicle as related elements related to the transceiver. The transceivers as speed measuring devices may be installed in the no-parking zone where there is sufficient installation space, and the road cones arranged around the transceivers may also be arranged in the no-parking zone accordingly. Therefore, by recognizing the road cones installed in the no-parking zone as related elements from the image captured of the front of the vehicle, it is possible to more reliably detect the approach to the speed measuring device using the transceivers.

[0028] (15) The control unit may perform the warning control by recognizing, as a related element related to the light transmitter / receiver, a reflector disposed on the right shoulder side with respect to the vehicle reflected in the image obtained by imaging the front of the vehicle. The speed measurement device using the light transmitter / receiver has a reflector that reflects the measurement light irradiated from the light transmitter / receiver. Therefore, by recognizing the reflector as a related element from the image obtained by imaging the front of the vehicle, it is possible to more reliably detect the approach to the speed measurement device using the light transmitter / receiver.

[0029] (16) The control unit may perform the warning control by recognizing, as a related element related to the light transmitter / receiver, a person facing from the sidewalk side to the roadway side reflected in the image obtained by imaging the front of the vehicle. The light transmitter / receiver used in the speed measurement device often has a supervisor managing the speed measurement device around it. Since normal pedestrians walk along the sidewalk, they face in the direction along the sidewalk, but supervisors often face from the sidewalk side to the roadway side in order to monitor the speed measurement devices and passing vehicles provided on the roadway. Therefore, by recognizing a person (supervisor) facing from the sidewalk side to the roadway side as a related element of the light transmitter / receiver from the image obtained by imaging the front of the vehicle, it is possible to more reliably detect the approach to the speed measurement device using the light transmitter / receiver.

[0030] (17) The control unit may perform the warning control by recognizing, as a related element related to the light transmitter / receiver, a person wearing a predetermined type of clothing reflected in the image obtained by imaging the front of the vehicle. The supervisors around the light transmitter / receiver are mainly police officers and often wear a predetermined type of clothing such as uniforms. Therefore, by recognizing a person (supervisor) wearing a predetermined type of clothing as a related element of the light transmitter / receiver from the image obtained by imaging the front of the vehicle, it is possible to more reliably detect the approach to the speed measurement device using the light transmitter / receiver.

[0031] (18) The control unit may recognize a person staying near a road cone shown in an image captured of the front of the vehicle as a related element related to the light transmitter / receiver, and perform the warning control. A supervisor around the light transmitter / receiver often stays on the spot to monitor a speed measuring device using the light transmitter / receiver. A road cone is installed around the light transmitter / receiver, and the supervisor also stays near it. Therefore, by recognizing a person (supervisor) staying near the road cone from an image captured of the front of the vehicle as a related element of the light transmitter / receiver, it is possible to more reliably detect an approach to the speed measuring device using the light transmitter / receiver.

[0032] (19) The control unit may recognize the head of a person who does not move within a range of 1 m to 1.2 m in height on a sidewalk for a predetermined time from an image captured of the front of the vehicle as a related element related to the light transmitter / receiver, and perform the warning control. A supervisor around the light transmitter / receiver often sits on a pipe chair or the like to monitor the speed measuring device. Then, the head of the supervisor is positioned in a range of 1 m to 1.2 m in height on the sidewalk, and the head often does not move from that position during monitoring. Therefore, by recognizing the head of a person who does not move within a range of 1 m to 1.2 m in height on the sidewalk for a predetermined time from an image captured of the front of the vehicle as a related element of the light transmitter / receiver, it is possible to more reliably detect an approach to the speed measuring device using the light transmitter / receiver.

[0033] (20) The control unit may recognize the measurement light crossing the travel path of the vehicle shown in an image captured of the front of the vehicle as a related element related to the light transmitter / receiver, and perform the warning control.

[0034] In a so-called photoelectric tube type speed measuring device, the measurement light irradiated from the light transmitter and receiver is irradiated in a direction crossing the vehicle's travel path. Although this measurement light is usually not visible to the naked eye, an imaging unit such as a camera used in a smartphone or the like can image light with a wider wavelength range than the naked eye, such as in the infrared region. Therefore, by recognizing the measurement light crossing the vehicle's travel path from the image taken of the front of the vehicle as a relevant element, it is possible to more reliably detect the approach to the speed measuring device using the light transmitter and receiver. For example, when a telescopic infrared camera is installed on a vehicle facing forward in the traveling direction, and an image corresponding to the light crossing the road horizontally is detected in the video imaged by the infrared camera, it may be recognized as "the measurement light crossing the vehicle's travel path reflected in the image taken of the front of the vehicle". In particular, when light that crosses within a first predetermined range in the road but does not cross a second predetermined range outside the first predetermined range in the road is detected, it may be recognized as "the measurement light crossing the vehicle's travel path reflected in the image taken of the front of the vehicle". As the first predetermined range, for example, it may be a portion corresponding to the traffic lane, and as the second predetermined range, it may be a range corresponding to the sidewalk. In this way, the light crossing the road for measuring the vehicle speed can be more reliably recognized, and false alarms can be reduced. In particular, as the first predetermined range, it may be the range of the traffic lane in the same traveling direction as the own vehicle. For example, in the case of a two-way traffic road with one lane on each side, it may be the range of the lane that is currently the travel path of the own vehicle. For example, in the case of a road with two lanes on one side and four lanes on both sides, it may be the range of the two lanes that are currently the travel path of the own vehicle. A predetermined space may be provided between the first predetermined range and the second predetermined range. In this way, false alarms can be further reduced.

[0035] (21) The control unit may perform the warning control by recognizing, as a related element related to the light transmitter / receiver, a pair of front and rear measurement lights that cross the vehicle's travel path at intervals of 3 m on the vehicle's travel path reflected in the image captured of the front of the vehicle. The light transmitter / receiver as a speed measuring device has a fixed interval between the timer start and the timer stop for speed measurement, and this interval is often 3 m. Therefore, by recognizing, as a related element, a pair of front and rear measurement lights that cross the vehicle's travel path at intervals of 3 m on the vehicle's travel path from the image captured of the front of the vehicle, it is possible to more reliably detect an approach to the speed measuring device using the light transmitter / receiver.

[0036] (22) The control unit may perform the warning control by recognizing, as a related element related to the light transmitter / receiver, a pair of front and rear measurement lights that cross the vehicle's travel path and have the same wavelength on the vehicle's travel path reflected in the image captured of the front of the vehicle. The light transmitter / receiver for timer start and timer stop as a speed measuring device often uses measurement lights of the same wavelength respectively. Therefore, by recognizing, as a related element, a pair of front and rear measurement lights that cross the vehicle's travel path and have the same wavelength on the vehicle's travel path from the image captured of the front of the vehicle, it is possible to more reliably detect an approach to the speed measuring device using the light transmitter / receiver.

[0037] (23) The control unit may perform the warning control by recognizing, as a related element related to the light transmitter / receiver, a pair of front and rear parallel measurement lights that cross the vehicle's travel path on the vehicle's travel path reflected in the image captured of the front of the vehicle. The light transmitter / receiver for timer start and timer stop as a speed measuring device needs to irradiate measurement lights parallel to each other front and rear for accurate speed measurement. Therefore, by recognizing, as a related element, a pair of front and rear parallel measurement lights that cross the vehicle's travel path on the vehicle's travel path from the image captured of the front of the vehicle, it is possible to more reliably detect an approach to the speed measuring device using the light transmitter / receiver.

[0038] (24) The control unit may perform the warning control by recognizing, as a related element related to the light transmitter / receiver, measurement light that crosses the vehicle's travel path less than 9 cm above the road surface reflected in the image of the front of the vehicle. Since the light transmitter / receiver as a speed measuring device usually detects the passage of the front wheels of a vehicle, the measurement light needs to be irradiated so as to be below the lower surface of the vehicle body. Therefore, by recognizing, as a related element, measurement light that crosses the vehicle's travel path less than 9 cm above the road surface from the image of the front of the vehicle, it is possible to more reliably detect an approach to the speed measuring device using the light transmitter / receiver.

[0039] (25) The control unit may perform the warning control by recognizing, as a related element related to the light transmitter / receiver, a one-box car parked on the road shoulder reflected in the image. Many of the vehicles used by supervisors are one-box cars and are parked near the speed measuring device. Therefore, in addition to the related element, by recognizing a one-box car as a related element from the image of the front of the vehicle, it is possible to more reliably detect an approach to the speed measuring device using the light transmitter / receiver.

[0040] (26) The control unit may perform the warning control by recognizing, as a related element related to the light transmitter / receiver, a pipe chair reflected in the image. Supervisors often sit on pipe chairs. Therefore, in addition to the related element, by recognizing a pipe chair as a related element from the image of the front of the vehicle, it is possible to more reliably detect an approach to the speed measuring device using the light transmitter / receiver.

[0041] (27) The control unit may perform the warning control by recognizing, as a related element related to the light transmitter / receiver, an overpass that intersects the lane on which the vehicle travels within a predetermined range from the related elements related to the light transmitter / receiver reflected in the image obtained by imaging the front of the vehicle. There are often overpasses around the speed measuring device for photographing the vehicle when the speed of the vehicle measured by the speed measuring device is equal to or higher than a predetermined speed. If photographing is performed from an overpass that intersects the lane on which the vehicle travels, it is possible to photograph the vehicle from the front. Therefore, by recognizing an overpass within a predetermined range from the related elements based on the photographed image as a related element, it is possible to more reliably detect an approach to the speed measuring device using the light transmitter / receiver.

[0042] (28) The control unit may perform the warning control by recognizing, as a related element related to the light transmitter / receiver, an overpass that intersects the lane on which the vehicle travels within a predetermined range from the related elements related to the light transmitter / receiver based on the map information. There are often overpasses around the speed measuring device for photographing the vehicle when the speed of the vehicle measured by the speed measuring device is equal to or higher than a predetermined speed. If photographing is performed from an overpass that intersects the lane on which the vehicle travels, it is possible to photograph the vehicle from the front. Therefore, by recognizing an overpass within a predetermined range from the related elements based on the map information as a related element, it is possible to more reliably detect an approach to the speed measuring device using the light transmitter / receiver.

[0043] (29) The control unit may perform the warning control by recognizing, as a related element related to the light transmitter / receiver, the enclosure information on the overpass that intersects the lane on which the vehicle travels within a predetermined range from the related elements related to the light transmitter / receiver, which is obtained based on the information acquired by other vehicles. In order to secure a space for photographing a vehicle passing from above the overpass to below the overpass, enclosures are often formed on the overpass with fences or the like. In recent years, it has also become possible to acquire the information acquired by other vehicles. By acquiring the enclosure information from such information acquired by other vehicles and recognizing it as a related element, it is possible to more reliably detect an approach to the speed measuring device using the light transmitter / receiver.

[0044] (30) The control unit may recognize, as a related element related to the light transmitter / receiver, enclosure information on an overpass that intersects the lane on which the vehicle is traveling within a predetermined range from related elements related to the light transmitter / receiver acquired based on SNS (Social Networking Service) information, and perform the warning control. In recent years, there are cases where road information and other information related to the road conditions are posted on SNS. By acquiring the enclosure information from such SNS information and recognizing it as a related element, it is possible to more reliably detect the approach to the speed measuring device using the light transmitter / receiver.

[0045] (31) The control unit may recognize, as a related element related to the light transmitter / receiver, that the vehicle is traveling in a predetermined section where a straight line continues for a predetermined distance or more based on map information, and perform the warning control. In many cases, speed measuring devices are installed in long straight sections where vehicles can reach a sufficient speed. Therefore, by recognizing, as the related element, that the vehicle is traveling in a predetermined section where a straight line continues for a predetermined distance or more based on map information, it is possible to more reliably detect the approach to the speed measuring device using the light transmitter / receiver.

[0046] (32) It is preferably a program for causing a computer to realize the functions of any one of the systems from (1) to (31) above. In this way, the functions from (1) to (31) above can be executed by the computer.

[0047] The inventions described in (1) to (32) above can be arbitrarily combined. For example, it may be configured to add at least a part of the configuration of at least one of the inventions after (2) to all or a part of the configuration of the invention described in (1). In particular, it is preferably an invention in which at least a part of the configuration of at least one of the inventions after (2) is added to the invention described in (1). Also, any configuration may be extracted from the inventions described in (1) to (32), and the extracted configurations may be combined. The applicant of the present application intends to obtain rights for inventions including these configurations. Also, even if there is a description such as "in the case of ~" or "when ~", it is not described as a configuration limited to that case or that time. These show examples of better configurations, and the applicant also intends to obtain rights for configurations other than these cases and times. Also, the parts described in a sequential manner are not limited to this order. The present disclosure also includes configurations in which some parts are deleted or the order is changed, and the applicant intends to obtain rights for them.

Effects of the Invention

[0048] According to the present invention, it is possible to provide a system, a program, etc. that are superior to the prior art. For example, it may also be possible to provide a system, a program, etc. related to the detection of a so-called phototube type speedometer.

[0049] Note that the effects of the invention of the present application are not limited to this, and the effects exhibited by the parts of the configuration disclosed in this specification, drawings, etc. are also disclosed, and the applicant also intends to obtain rights for the configuration that exhibits the effects by means of divisional applications, amendments, etc. For example, the parts described as "can ~" or "is possible ~" in this specification are descriptions that clearly indicate the exhibited effects, and even if there is no description such as "can ~" or "is possible ~", there are parts that indicate the effects. Also, even if there is no such description, there are effects grasped by the configuration.

Brief Description of the Drawings

[0050]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Mode for Carrying Out the Invention

[0051] [First Embodiment] Hereinafter, the embodiments will be described in detail with reference to the drawings. The following embodiments are examples of the embodiments of the present disclosure, and the present disclosure is not limited to these embodiments. In the drawings referred to in the present embodiment, the same parts or parts having the same function are denoted by the same reference numerals or similar reference numerals (reference numerals with a, b, etc. added after the numbers), and the repeated description thereof may be omitted. Also, in each of the drawings referred to in the following description, in order to make each member, each region, etc. recognizable in size, the scale may be different from the actual one. Hereinafter, the case where the system of the present disclosure is applied to a system mounted on a vehicle and detecting a speed measuring device will be described. The vehicle is preferably an automobile, but is not limited to a four-wheel automobile, and may be, for example, a two-wheel vehicle such as a motorcycle or a large transport vehicle having four or more wheels.

[0052] Conventional enforcement used to set up a first location for measuring speed and a second location slightly ahead of it where the speeding vehicle was parked and the driver was made to sign a violation ticket etc., and carried out enforcement by sending information of the speeding vehicle from the first location to the second location. Therefore, two locations were required. It meant that two to three police officers and space for several cars to be parked were needed. However, the mobile Obis is lightweight and compact, and since it takes a photo of the speeding vehicle on the spot and sends a notice of speeding to the driver's home etc. later, speed enforcement can be carried out by just one police officer at one location.

[0053] <Configuration> FIG. 1 is a diagram showing the configuration of the system according to the first embodiment. The electronic device 10 is an electronic device to which the system according to the present disclosure is applied. The electronic device 10 is a detector that detects a speed measuring device 30 having a light transmitter / receiver that transmits and receives measurement light crossing the path of the vehicle 50. In this embodiment, one vehicle 50 is taken as an example for explanation, but this embodiment can be similarly applied to other vehicles. The appearance of the speed measuring device shown in FIG. 1 is an example, and an appearance different from this may also be possible. The measurement light is light of a specific wavelength, and is laser light having a predetermined wavelength. The specific wavelength belongs to, for example, the infrared light region.

[0054] The electronic device 10 is, for example, a monitor-type device having a substantially rectangular parallelepiped housing 10b. The electronic device 10 is installed inside the vehicle compartment of the vehicle 50. The electronic device 10 is installed, for example, via a bracket 10a attached on the dashboard 51 using double-sided tape. An opening is provided in the front of the electronic device 10. The electronic device 10 has a display unit 12 for displaying an image at the position of this opening. Also, an imaging unit 13 capable of imaging the front of the vehicle is provided on the back surface of the electronic device 10. The housing 10b of the electronic device 10 is formed of resin or other material. Note that, in this embodiment, the electronic device 10 is an electronic device installed on the dashboard 51, but it may be an electronic device installed at another location of the vehicle 50 such as a front glass (for example, near the upper end) or a ceiling (for example, near the boundary with the front glass).

[0055] The imaging unit 13 is a camera capable of imaging the video within the angular field (field of view) in front of the vehicle 50. The imaging unit 13 can also image light in the infrared region, for example. The imaging unit 13 has a telephoto function, for example. The bracket 10a is configured to be able to adjust the orientation of the electronic device 10 vertically and horizontally. By adjusting the orientation of the electronic device 10 with the bracket 10a, the imaging direction of the imaging unit 13 can be changed. The imaging lens of the imaging unit 13 may be provided, for example, on the back side of the housing 10b of the electronic device 10. An imaging device may be provided outside the electronic device 10, and the electronic device 10 may acquire an imaging image, which is an image captured by this imaging device. In this case, the imaging device is configured to be able to adjust its position and posture (imaging direction) independently of the electronic device 10. The imaging device may be installed, for example, at a position where it can image the front of the vehicle such as the windshield, dashboard, or others.

[0056] The speed measuring device 30 is installed at a speed enforcement point where the speed of the vehicle 50 is enforced. The speed measuring device 30 may also be called a speed enforcement device, a speed measuring device, etc. The speed enforcement point is determined by considering situations such as the driving conditions of the vehicle 50 (for example, the vehicle is likely to gain speed) and the occurrence situation of traffic accidents (for example, a location with a high number of accidents). As an example of the speed enforcement point, among the routes (roads) on which the vehicle 50 travels, there are points at or ahead of a curve.

[0057] The speed measuring device 30 is also referred to as a photoelectric tube orbis and is installed on routes such as urban expressways and other roads. The speed measuring device 30 includes a first light transmitter / receiver 31, a first reflector 32, a second light transmitter / receiver 33, a second reflector 34, and a measurement control unit 35.

[0058] The first light transmitter / receiver 31 and the second light transmitter / receiver 33 each irradiate measurement light (first measurement light L1, second measurement light L2) as a measurement wave, and the built-in photosensor detects reception of the reflected measurement light. The first reflector 32 is installed facing the measurement light irradiation part of the first light transmitter / receiver 31 and can reflect the first measurement light L1 irradiated from the first light transmitter / receiver 31 toward the first light transmitter / receiver 31. The second reflector 34 is installed facing the measurement light irradiation part of the second light transmitter / receiver 33 and can reflect the second measurement light L2 irradiated from the second light transmitter / receiver 33 toward the second light transmitter / receiver 33. Hereinafter, the first light transmitter / receiver 31 and the second light transmitter / receiver 33 may be collectively referred to as "light transmitter / receivers 31, 33", the first reflector 32 and the second reflector 34 may be collectively referred to as "reflectors 32, 34", and the first measurement light L1 and the second measurement light L2 may be collectively referred to as "measurement lights L1, L2".

[0059] The first light transmitter / receiver 31 and the second light transmitter / receiver 33 are installed, for example, on one side in the width direction of the roadway RW (the left side in FIG. 1), and the first reflector 32 and the second reflector 34 are installed on the other side in the width direction of the roadway RW (the right side in FIG. 1). More specifically, in FIG. 1, the first light transmitter / receiver 31 and the second light transmitter / receiver 33 are installed on the shoulder facing the sidewalk SW beside the roadway RW, and the first reflector 32 and the second reflector 34 are installed on the center line CL. The sidewalk SW has a separation zone SE formed by a curb as a boundary with the roadway RW, and the first light transmitter / receiver 31 and the second light transmitter / receiver 33 are installed on the roadway RW side of the separation zone SE. Note that in addition to the curb, the separation zone SE may be provided with a fence, a guardrail, a pole, or a tree.

[0060] Further, the first light transmitter / receiver 31 and the first reflector 32, and the second light transmitter / receiver 33 and the second reflector 34 are installed such that the measurement lights L1 and L2 cross the path of the vehicle 50, that is, the measurement lights L1 and L2 are irradiated in the width direction of the road lane RW. The width direction across the road is, for example, the direction perpendicular to the road lane RW, for example, the direction perpendicular to the center line CL. The first light transmitter / receiver 31 and the second light transmitter / receiver 33 are installed parallel to the road surface at a predetermined height such that the measurement lights L1 and L2 cross the path of the vehicle 50. This predetermined height is lower than the lower surface of the vehicle body of the vehicle 50, for example, less than 9 cm. Adjustments such as the height and the emission direction are made so that the emitted light hits, for example, the tire of the vehicle 50. The first light transmitter / receiver 31 and the second light transmitter / receiver 33 can detect the passage of the vehicle 50 when the wheels (for example, front wheels) of the vehicle 50 block the measurement lights L1 and L2.

[0061] The first light transmitter / receiver 31 is a light transmitter / receiver for timer start in speed measurement. The first light transmitter / receiver 31 and the first reflector 32 are installed on the front side (the rear side with respect to the traveling direction of the road lane RW (the upstream side with respect to the traveling direction)) on the path of the vehicle 50 compared to the second light transmitter / receiver 33 and the second reflector 34. The second light transmitter / receiver 33 is a light transmitter / receiver for timer stop in speed measurement. The second light transmitter / receiver 33 and the second reflector 34 are installed on the rear side (the front side with respect to the traveling direction of the road lane RW) on the path of the vehicle 50 compared to the first light transmitter / receiver 31 and the first reflector 32. In this way, the first light transmitter / receiver 31 and the first reflector 32, and the second light transmitter / receiver 33 and the second reflector 34 are installed such that the second measurement light L2 and the first measurement light L1 are parallel to each other in the front-rear direction and have a certain interval D on the path of the vehicle 50 (the traveling direction of the road lane RW). This certain interval D is a value set for the speed measurement of the vehicle 50, for example, 3 m.

[0062] The measurement control unit 35 is connected to the first light transmitter / receiver 31 and the second light transmitter / receiver 33 via, for example, a cable, and can receive information from the first light transmitter / receiver 31 and the second light transmitter / receiver 33. Note that the measurement control unit 35 may be connected to the first light transmitter / receiver 31 and the second light transmitter / receiver 33 by wireless communication. When the measurement control unit 35 detects the passage of the vehicle 50 (strictly speaking, the passage of the front wheels) by the first light transmitter / receiver 31, it starts a built-in timer, and then when the passage of the vehicle 50 (strictly speaking, the passage of the front wheels) is detected by the second light transmitter / receiver 33, it stops the timer. The measurement control unit 35 has a function of measuring the speed of the vehicle 50 from the value of this timer, that is, the relationship between the time from when the front wheels of the vehicle 50 pass through the first measurement light L1 to when they pass through the second measurement light L2 and the interval D. Further, the measurement control unit 35 may have a function of, for example, displaying the speed of the vehicle 50 as a measurement result on a display unit (not shown) or giving an alarm when the measurement result exceeds a predetermined speed.

[0063] Also, around the speed measuring device 30, related elements that are elements related to the first light transmitter / receiver 31 and the second light transmitter / receiver 33 of the speed measuring device 30 are installed. The related elements can be said to be elements that serve as marks at the enforcement points where enforcement using a photoelectric tube type speed measuring device is carried out, and may refer to objects, people, or other elements that exist or may exist at or around the enforcement point. Note that the first light transmitter / receiver 31 itself, the second light transmitter / receiver 33 itself, the first reflector 32, the second reflector 34, and the measurement control unit 35 are also one of the related elements. For example, in FIG. 1, as related elements in the present embodiment, the first road cone 41, the second road cone 42, and the supervisor 43 are shown.

[0064] The first road cone 41 is also called a pylon, and has a shape in which a hollow conical cone portion 41b stands upright from a rectangular plate-shaped bottom portion 41a. A strip-shaped reflector 41c that reflects light is attached to the surface of the cone portion 41b. The first road cone 41, for example, has a warm color system such as orange, red, or yellow as a whole, and the reflector 41c is white. The second road cone 42 has the same configuration. Hereinafter, the first road cone 41 and the second road cone 42 may also be collectively referred to as "road cones 41, 42".

[0065] Further, the first load cone 41 is installed on the left side in the width direction of the roadway RW facing the sidewalk SW, and is installed on the front side in the traveling direction of the vehicle 50 with respect to the first light transmitter / receiver 31. The second load cone 42 is installed on the left side in the width direction of the roadway RW facing the sidewalk SW, and is installed on the rear side in the traveling direction of the vehicle 50 with respect to the second light transmitter / receiver 33. In this way, the first load cone 41 and the second load cone 42 are arranged at an interval of D or more so that the first light transmitter / receiver 31 and the second light transmitter / receiver 33 are arranged therebetween in the traveling direction of the vehicle 50.

[0066] The monitor 43 is, for example, a police officer, and is wearing a predetermined type of clothing such as a cold-colored uniform or hat in navy blue, black, etc. Note that the monitor 43 may wear a reflective vest or wear a helmet instead of a hat as the predetermined type of clothing. Further, the monitor 43 is facing from the sidewalk side toward the roadway side while sitting on a chair such as a pipe chair 43a to monitor the vehicle 50 traveling on the roadway. The head of the sitting monitor 43 is often positioned in the range of 1 m to 1.2 m above the sidewalk.

[0067] Further, as shown in FIG. 2, as related elements related to the first light transmitter / receiver 31 and the second light transmitter / receiver 33, for example, a vehicle used by the monitor 43 is parked near the speed measuring device 30. The vehicle used by the monitor 43 is parked, for example, on the rear side in the traveling path of the vehicle with respect to the speed measuring device 30. The distance between the vehicle used by the monitor 43 and the speed measuring device 30 is, for example, a distance at which these can be simultaneously imaged by the imaging unit 13, or a distance at which the first light transmitter / receiver 31 and the second light transmitter / receiver 33 can be imaged within a predetermined time after imaging the vehicle. The vehicle is often a so-called one-box car 44 with a box-shaped body.

[0068] In addition, as related elements associated with the first light transmitter / receiver 31 and the second light transmitter / receiver 33, there are viaducts 45a and 45b that intersect the road RW on which the vehicle 50 travels. In FIG. 2, there are a front viaduct 45a and a rear viaduct 45b on the travel route of the vehicle 50, and both are located within a range of a predetermined distance (for example, 200 m) from the speed measurement device 30. On the viaducts 45a and 45b, traffic control cameras 46a and 46b directed toward the speed measurement device 30 are installed, and partition fences 47a and 47b are installed around the traffic control cameras 46a and 46b. The traffic control cameras 46a and 46b can communicate with, for example, the measurement control unit 35 of the speed measurement device 30 and can photograph vehicles violating the speed limit that have passed through the speed measurement device 30. In addition, another vehicle 60 is passing on the front viaduct 45a of the vehicle 50. The other vehicle 60 can transmit information to the outside via vehicle-to-vehicle communication with the vehicle 50 or the Internet.

[0069] FIG. 3 is a block diagram showing the electrical configuration of the electronic device 10. The control unit 11 controls each part of the electronic device 10. The control unit 11 is a computer including, for example, an arithmetic processing circuit and a memory. The arithmetic processing circuit includes, for example, a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or other arithmetic processing circuits. The memory includes, for example, a RAM (Random Access Memory) or other volatile memory. The arithmetic processing circuit performs various controls by temporarily reading data from the memory and performing arithmetic processing.

[0070] The display unit 12 displays an image. The display unit 12 is, for example, a 3.2-inch color TFT liquid crystal display. The display unit 12 may be an organic EL display or other types of display devices.

[0071] The imaging unit 13 images the front of the vehicle 50. Although the imaging unit 13 is mounted on the electronic device 10 in the present embodiment, it may be wirelessly or wiredly connected to another device having an imaging function such as a drive recorder or a smartphone and use the other imaging function. The imaging unit 13 may be able to image light in the infrared region including the wavelength ranges of the measurement lights L1 and L2. The captured image may be a still image or a moving image. The algorithm for analyzing the captured image is not limited, and examples include methods using deep learning and methods using machine learning (such as pattern matching methods). The control unit 11 analyzes the image acquired from the imaging unit 13 and performs a process of recognizing a predetermined image portion indicating related elements related to the above-described first light transmitter / receiver 31 and second light transmitter / receiver 33. The predetermined image portion indicating the related elements may be recognized based on, for example, the appearance shape, color, and arrangement of the related elements.

[0072] The speaker 14 outputs sound. The GPS (Global Positioning System) receiver 15 includes an antenna and a receiving circuit and receives signals from GPS satellites. The GPS receiver 15 processes the received signals and outputs position information. The position information includes, for example, latitude information and longitude information, and may further include altitude information. The position information is position information indicating the current position of the electronic device 10, but it is preferably regarded as position information indicating the current position of the electronic device 10.

[0073] The communication unit 16 communicates with an external device. The communication unit 16 performs wireless communication using, for example, Wi-Fi (registered trademark), Bluetooth (registered trademark), or other methods. The communication unit 16 can perform so-called vehicle-to-vehicle communication for acquiring information from another vehicle 60 and so-called road-to-vehicle communication for acquiring information from infrastructure facilities (roadside units). Further, the communication unit 16 can acquire SNS information on the Internet. The SNS information is information posted on an SNS exemplified by Twitter (registered trademark), for example, and preferably includes character information. The character information may be a sentence created by the user of the electronic device 10 or a third party, or a label called a hashtag.

[0074] The storage unit 17 stores data. The storage unit 17 stores, for example, a program for the control unit 11 to perform various controls. The control unit 11 reads the program from the storage unit 17 into the memory and executes it. Further, the storage unit 17 stores map data indicating a map, data indicating the types and locations of various facilities, data for notifying the approach to an alarm target, data for realizing a route guidance function, and the like. The alarm targets include, for example, drowsy driving accident locations, speed measuring devices (other than photoelectric tube types, radar types, loop coil types, H systems, LH systems, mobile types, etc.), speed limit switching points, enforcement areas, checkpoint areas, no-parking monitoring areas, N systems, traffic monitoring systems, intersection monitoring points, signal violation suppression systems, police stations, accident-prone areas, vehicle-targeted crime-prone areas, sharp / continuous curves (expressways), branch / merge points (expressways), ETC lane advance notice (expressways), service areas (expressways), parking areas (expressways), highway oases (expressways), smart interchanges (expressways), gas stations inside PA / SA (expressways), tunnels (expressways), highway radio reception areas (expressways), prefecture boundary notifications, road stations, viewpoint parking lots, etc. The storage unit 17 stores, in association with each other, the type information of these alarm targets, the position information indicating their positions, the data of images (e.g., schematic diagrams or photos) to be displayed on the display unit 12, and the audio data.

[0075] The storage unit 17 has a database 17a (denoted as "DB" in FIG. 3) that stores information and programs for image recognition of related elements. The information for image recognition of related elements stored in the database 17a includes not only the information already stored at the product shipment stage of the electronic device 10, but also, as will be described later, the information distributed by a server device of a predetermined operator may be stored.

[0076] Note that the storage unit 17 may include a storage medium that permanently stores data. The storage unit 17 may include, for example, an optical recording medium, a magnetic recording medium, and a semiconductor recording medium, or other recording media. The data stored in the storage unit 17 may be stored in cloud computing or other external storage means as appropriate.

[0077] The operation unit 18 receives the operations of the user. The operation unit 18 includes, for example, a touch sensor, a volume adjustment button, and a work button. The touch sensor is provided on the surface of the display unit 12 and detects the position touched by the user. The volume operation button is operated to adjust the volume of the sound output from the speaker 14. The work button is a button for performing various operations.

[0078] The sensor unit 19 includes various sensors. The sensor unit 19 includes, for example, a geomagnetic sensor, an acceleration sensor, and an illuminance sensor. The geomagnetic sensor is a sensor that detects the geomagnetism and detects in which direction the north direction is with respect to the traveling direction. The acceleration sensor is a sensor that detects the acceleration of the vehicle 50 in the front-rear, left-right, and up-down directions. The illuminance sensor is a sensor that detects the illuminance indicating the brightness inside the vehicle cabin.

[0079] The mounting unit 20 is a mounting unit on which an external storage medium is mounted. The external storage medium is, for example, a memory card. In this case, the mounting unit 20 is a memory card slot. The data stored in the storage unit 17 may be taken in via the external storage medium. As this data, there is update information of information (position information such as longitude and latitude, type information, etc.) of a new warning target.

[0080] The power supply unit 21 supplies the power supplied from the power source to each part in the electronic device 10. The power supply unit 21 includes, for example, a power switch and a DC jack. The DC jack is for connecting a cigarette plug cord, and is connected to the cigarette socket of the vehicle via the cigarette plug cord to receive power supply. The power switch is a switch for turning on or off the power of the electronic device 10.

[0081] The light emitting unit 22 emits light in various colors. The light emitting unit 22 includes, for example, a light emitting diode.

[0082] The cable terminal part 23 is a terminal to which an external connection cable is connected. For example, the connection cable is a cable for connecting the electronic device 10 to an OBD-II connector mounted on the vehicle 50. The OBD-II connector, also called a fault diagnosis connector, is connected to the ECU of the vehicle 50 and outputs various vehicle information.

[0083] The laser light receiving part 24 receives laser light as a measurement wave from a speed measuring instrument corresponding to the laser method. This laser light is a pulse laser having a predetermined pulse width and pulse interval. The wavelength of the laser light is, for example, 905 nm. The laser light receiving part 24 has, for example, a visible light cut filter, a lens that condenses the light that has passed through the visible light cut filter, a light receiving element (for example, a photodiode) that receives the light condensed by the lens, and a circuit that processes the signal from the light receiving element.

[0084] The radar wave receiving part 25 receives radar waves as measurement waves from a speed measuring instrument corresponding to the radar method. As the radar waves, there are a predetermined microwave, a stealth wave that emits radio waves only at the moment when a predetermined stealth detector measures, a normal radar wave, a new type of radar wave corresponding to the K band and the X band, and a cancellation notification. The radar wave receiving part 25 has, for example, an antenna and a receiving circuit.

[0085] The wireless receiving part 26 receives a wireless signal of a predetermined frequency. As the wireless signal, there are, for example, wireless signals belonging to frequencies such as regulatory wireless, car stereo wireless, digital wireless, very small wireless, jurisdiction-based wireless, police telephone, police activity wireless, lecca wireless, heli-tele wireless, fire heli-tele wireless, fire wireless, emergency wireless, highway wireless, police wireless, etc. The wireless receiving part 26 has, for example, an antenna and a receiving circuit.

[0086] The control unit 11 of the present embodiment performs warning control for issuing a predetermined warning during the running of the vehicle 50. For example, the control unit 11 performs warning control for warning that the vehicle 50 has approached the speed measuring device. The control unit 11 of the present embodiment has a function of performing warning control for warning the approach to one or both of the first light transmitter / receiver 31 and the second light transmitter / receiver 33, that is, the approach to the photoelectric type speed measuring device 30 using the first light transmitter / receiver 31 and the second light transmitter / receiver 33. Note that the warning of approaching the first light transmitter / receiver 31 and the second light transmitter / receiver 33 may be appropriately read as the warning of the existence of the first light transmitter / receiver 31 and the second light transmitter / receiver 33, and the warning of approaching the photoelectric type speed measuring device 30 may be appropriately read as the warning of the existence of the speed measuring device 30.

[0087] The control unit 11 recognizes related elements of the first light transmitter / receiver 31 or the second light transmitter / receiver 33 and performs warning control. There may be a plurality of related elements for performing this warning control. Also, different warning controls may be performed according to the types of the recognized related elements. Specific conditions of the related elements for performing warning control will be described later. Further, when the control unit 11 receives laser light as a measurement wave by the laser light receiving unit 24, or when it receives radar wave as a measurement wave by the radar wave receiving unit 25, the control unit 11 performs warning control for warning. When the control unit 11 receives a wireless signal by the wireless receiving unit 26, the control unit 11 performs warning control for warning. The warning control may be such that the content of the warning differs depending on the type of the speed measuring device and the frequency of the wireless signal. The warning control is preferably control for warning by display, light, sound, or a combination thereof, or other methods perceptible to humans.

[0088] In addition to the above, the electronic device 10 may have functions provided in well-known laser detectors and radar detectors. For example, there are many speed measuring devices called fixed type, mobile type, etc. The mobile type includes, for example, a portable type and a type mounted on a vehicle. The electronic device 10 may have a function of receiving laser light from a speed measuring device other than such a photoelectric type and issuing a warning.

[0089] <Operation> The operation of this embodiment will be described. FIG. 4 is a flowchart showing the operation of the control unit 11 of the electronic device 10 according to the first embodiment. When the operation of the electronic device 10 starts, the control unit 11 executes the processes described below. The timing of the start of the operation of the electronic device 10 is not particularly limited. For example, it may be triggered by, for example, the power of the electronic device 10 being turned on, or the start of the execution of the route guidance function in the navigation function.

[0090] First, in step S1, the control unit 11 acquires a captured image obtained by imaging the front of the vehicle by the imaging unit 13.

[0091] Next, in step S2, the control unit 11 analyzes the acquired captured image and determines whether a load cone as one type of related element of the first light transmitter / receiver 31 or the second light transmitter / receiver 33 is recognized. The determination of the recognition of the load cone as the related element is made based on whether there is an image portion corresponding to a load cone that satisfies a predetermined condition in the captured image.

[0092] For example, in FIG. 1, the control unit 11 recognizes both the first load cone 41 and the second load cone 42 installed on the road lane RW shown in the captured image as related elements. Specifically, in this embodiment, a load cone that satisfies a predetermined condition regarding the load cone as described below may be recognized as a related element.

[0093] As one of the predetermined conditions regarding the load cone, the control unit 11 may recognize, for example, the first load cone 41 and the second load cone 42 installed near the road shoulder on the road lane RW shown in the captured image as related elements.

[0094] As one of the predetermined conditions regarding the load cone, the control unit 11 may recognize, for example, the first load cone 41 and the second load cone 42 installed on the road lane RW side of the separation zone SE between the road lane RW and the sidewalk SW shown in the captured image as related elements.

[0095] The control unit 11 may recognize, as one of the predetermined conditions regarding the road cones, for example, the first road cone 41 and the second road cone 42 in warm colors shown in the captured image as related elements.

[0096] The control unit 11 may recognize, as one of the predetermined conditions regarding the road cones, for example, the first road cone 41 provided with the reflector 41c and the second road cone 42 shown in the captured image as related elements.

[0097] The control unit 11 may recognize, as related elements, for example, the first road cone 41 and the second road cone 42 arranged front and rear on the travel path of the vehicle 50 shown in the captured image. In particular, the control unit 11 of the present embodiment may recognize, as one of the predetermined conditions regarding the road cones, for example, the first road cone 41 and the second road cone 42 arranged front and rear with a distance of 3 m or more on the travel path of the vehicle 50 shown in the captured image as related elements.

[0098] The control unit 11 may recognize, as one of the predetermined conditions regarding the road cones, although not shown in the figure, for example, the road cones installed in the no-parking zone shown in the captured image as related elements.

[0099] When the control unit 11 of the present embodiment satisfies, for example, three or more of the above-described predetermined conditions regarding the plurality of road cones, the determination result in step S2 is determined to be "Yes". Note that the number of predetermined conditions satisfied for determining the determination result in step S2 to be "Yes" is not limited to three and can be arbitrarily set. It may be one, but it is preferably a plurality. Also, at least a part of the above-described predetermined conditions regarding the road cones may not be used.

[0100] Also, in the recognition of the road cones, although both the first road cone 41 and the second road cone 42 are recognized under the above-described predetermined conditions, for example, only one of the first road cone 41 and the second road cone 42 that satisfies each predetermined condition may be recognized as a related element.

[0101] When the control unit 11 determines "Yes" in step S2, that is, when a load cone satisfying the above-described predetermined conditions is recognized from the captured image, the process proceeds to step S6. On the other hand, when the determination in step S2 is "No", the process proceeds to step S3.

[0102] In step S3, the control unit 11 analyzes the acquired captured image and determines whether or not a supervisor 43 as one type of related element of the first light transmitter / receiver 31 or the second light transmitter / receiver 33 is recognized. The determination of the recognition of the supervisor 43 as the related element is made based on whether or not there is an image portion corresponding to the supervisor 43 that satisfies a predetermined condition within the captured image.

[0103] Specifically, in the present embodiment, a person who satisfies a predetermined condition regarding a supervisor as described below may be recognized as a related element.

[0104] As one of the predetermined conditions regarding the supervisor, for example, in FIG. 1, the control unit 11 may recognize a person (supervisor 43) facing from the sidewalk SW side to the roadway RW side shown in the captured image as a related element.

[0105] As one of the predetermined conditions regarding the supervisor, for example, the control unit 11 may recognize a person (supervisor 43) wearing a predetermined type of clothing such as a cool-color uniform, hat, reflective vest, or helmet in a dark color such as navy or black from the sidewalk SW side shown in the captured image as a related element.

[0106] As one of the predetermined conditions regarding the supervisor, for example, the control unit 11 may recognize a person (supervisor 43) staying near a load cone (first load cone 41, second load cone 42) shown in the captured image as a related element.

[0107] As one of the predetermined conditions regarding the supervisor, for example, the control unit 11 may recognize the head of a person (supervisor 43) who does not move for a predetermined time within a range of 1 m to 1.2 m in height on the sidewalk SW shown in the captured image as a related element.

[0108] When the control unit 11 of the present embodiment satisfies, for example, three or more of the predetermined conditions related to the plurality of supervisors described above, it determines that the determination result in step S3 is "Yes". Note that the number of predetermined conditions satisfied for determining that the determination result in step S3 is "Yes" is not limited to three and can be arbitrarily set. It may be one, but it is preferably plural. Also, at least a part of the predetermined conditions related to the above-mentioned supervisors may not be used.

[0109] When the control unit 11 determines "Yes" in step S3, that is, when it recognizes the supervisor 43 satisfying the predetermined conditions as described above from the captured image, it proceeds to step S6. On the other hand, when it determines "No" in step S3, it proceeds to step S4.

[0110] In step S4, the control unit 11 analyzes the acquired captured image and determines whether it has recognized the measurement lights L1 and L2 as one type of related element of the first light transmitter / receiver 31 or the second light transmitter / receiver 33. The determination of the recognition of the measurement lights L1 and L2 as the related element is made based on whether there is an image portion corresponding to the measurement lights L1 and L2 that satisfy the predetermined conditions within the captured image.

[0111] For example, in FIG. 1, the control unit 11 recognizes both the first measurement light L1 and the second measurement light L2 that cross the path of the vehicle 50 shown in the captured image as related elements. Specifically, in the present embodiment, it is preferable to recognize the measurement light that satisfies the predetermined conditions related to the measurement light as described below as the related element.

[0112] As one of the predetermined conditions related to the measurement light, for example, the control unit 11 may recognize the first measurement light L1 and the second measurement light L2 that cross a pair of paths before and after at an interval of 3 m on the path of the vehicle 50 shown in the captured image as related elements.

[0113] As one of the predetermined conditions related to the measurement light, for example, the control unit 11 may recognize the first measurement light L1 and the second measurement light L2 that cross a pair of paths before and after with the same wavelength on the path of the vehicle 50 shown in the captured image as related elements.

[0114] As one of the predetermined conditions regarding the measurement light, the control unit 11 may recognize, for example, a pair of parallel first measurement light L1 and second measurement light L2 that cross the travel path of the vehicle 50 in front and behind as related elements on the travel path shown in the captured image.

[0115] As one of the predetermined conditions regarding the measurement light, the control unit 11 may recognize, for example, the first measurement light L1 and the second measurement light L2 that cross the travel path of the vehicle 50 at less than 9 cm from the road surface shown in the captured image as related elements.

[0116] When the control unit 11 of the present embodiment satisfies, for example, three or more of the predetermined conditions regarding the plurality of measurement lights described above, it determines the determination result of step S4 as "Yes". Note that the number of predetermined conditions satisfied for determining the determination result of step S2 as "Yes" is not limited to three and can be arbitrarily set. It may be one, but it is better to be plural. Also, at least a part of the predetermined conditions regarding the above measurement light may not be used.

[0117] In addition, in the recognition of the measurement lights L1 and L2, both the first measurement light L1 and the second measurement light L2 are recognized under the above-described predetermined conditions. However, for example, only one of the first measurement light L1 and the second measurement light L2 that satisfies the predetermined conditions may be recognized as a related element.

[0118] When the control unit 11 determines "Yes" in step S4, that is, when it recognizes measurement light that satisfies the predetermined conditions as described above from the captured image, it proceeds to step S6. On the other hand, when it determines "No" in step S4, it proceeds to step S5.

[0119] In step S5, the control unit 11 analyzes the acquired captured image and determines whether it has recognized related elements (other related elements) of the first transceiver 31 or the second transceiver 33 other than steps S2 to S4. Specifically, in the present embodiment, those that satisfy the predetermined conditions regarding other related elements as described below are recognized as related elements.

[0120] As one of the predetermined conditions regarding other related elements, for example, in FIG. 1, the control unit 11 recognizes, as related elements, the first reflector 32 and the second reflector 34 arranged on the right side of the road lane RW on which the vehicle 50 shown in the captured image travels. The recognition of the first reflector 32 and the second reflector 34 may be based not only on the arrangement on the right side of the road lane RW but also on the condition that the distance therebetween in the traveling direction of the vehicle 50 is 3 m.

[0121] As one of the predetermined conditions regarding other related elements, for example, as shown in FIG. 2, the control unit 11 recognizes, as a related element, the one-box car 44 parked on the road shoulder shown in the captured image. The recognition of the one-box car 44 may be based not only on the external shape but also on the color (for example, white) as a recognition condition.

[0122] As one of the predetermined conditions regarding other related elements, the control unit 11 recognizes, as a related element, the pipe chair 43a shown in the captured image. It may be a condition that the supervisor 43 is seated on the pipe chair 43a.

[0123] When the control unit 11 of the present embodiment satisfies a predetermined number or more, for example, two or more, of the predetermined conditions regarding the plurality of other related elements described above, the determination result in step S5 is determined as "Yes". Note that the predetermined number of predetermined conditions for determining the determination result in step S5 as "Yes" is not limited to two and can be arbitrarily set. It may be one, but it is better to be plural.

[0124] Also, in the recognition of other related elements, although both the first reflector 32 and / or the second reflector 34 are recognized under the above-described respective predetermined conditions, for example, only one of the first reflector 32 and / or the second reflector 34 that satisfies the predetermined conditions may be recognized as a related element.

[0125] When the control unit 11 determines "Yes" in step S5, that is, when other related elements that satisfy the predetermined conditions as described above are recognized from the captured image, the process proceeds to step S6. On the other hand, when the determination in step S5 is "No", the process proceeds to step S7.

[0126] In step S6, the control unit 11 performs control to issue an alarm for approaching the speed measuring device 30, that is, turns on the alarm control and returns to the process of step S1. The alarm control may be performed by a method that allows the user to recognize the approach to the speed measuring device 30. For example, at least any one of voice output, display on the display unit 12 of the alarm screen, and light emission control of the light emitting unit 22 is used. In this embodiment, the alarm is to notify the user of approaching the speed limit location or the installation location of the photoelectric tube type speed measuring device 30. Further, the control unit 11 may store the captured image in the storage unit 17 by the imaging unit 13 of the electronic device 10 or a drive recorder or the like together with the alarm. For example, the control unit 11 may record the captured images of at least one of the period before and after the time when it is determined that the vehicle has approached the speed measuring device 30.

[0127] FIG. 5 is a diagram showing an example of an alarm screen. The alarm screen shown in FIG. 5 is a screen in which a window W1 is superimposed on a map screen M1. The control unit 11 issues an alarm by displaying the window W1 superimposed on the map M. The map M is specified based on the map data and the position information from the GPS receiving unit 15. An icon I indicating the position of the vehicle 50 (own vehicle position) is arranged on the map M. The own vehicle position is specified based on the position information from the GPS receiving unit 15. Note that the icon in this embodiment may be replaced with a character, symbol, figure, or other object.

[0128] In the example shown in FIG. 5(A), a message indicating the approach to the speed measuring device 30, "This is a speed limit location", is displayed in the window W1. Further, the control unit 11 may output a voice of "This is a speed limit location" from the speaker 14. When the control unit 11 can determine the type of the speed measuring device (for example, photoelectric tube type, semi-fixed type, fixed type, mobile type) by the characteristics of the received laser light signal or other methods, the control unit 11 may perform control to issue an alarm including notification of the type of the speed measuring device. When the control unit 11 can identify the speed measuring device 30 as a photoelectric tube type, for example, as shown in FIG. 6(B), it may notify by a message of "This is a photoelectric tube type speed limit location".

[0129] Further, different alarm controls may be performed according to the types of recognized related elements. For example, when the recognized related element is a load cone relationship, a supervisor relationship, a measurement light relationship, or other related elements, different alarm controls may be performed.

[0130] Also, together with a message indicating the approach to the speed measuring device 30, the accuracy of the approach to the speed measuring device 30 may be notified. The accuracy of the approach to the speed measuring device 30 may be indicated as a percentage or in a graded level (numerical value, large, medium, small, etc.) according to, for example, the type of recognized related element, the importance of the recognized related element, the number of related elements, and the like.

[0131] On the other hand, in step S7, the control unit 11 stops giving an alarm and returns to the process of step S1. The process of step S7 is a process of stopping (i.e., turning off) the alarm control when the alarm control is being executed. That is, in step S6, all of steps S2 to S3 are "No", and the related elements of the first light transmitter / receiver 31 and the second light transmitter / receiver 33 have not been recognized. Therefore, in step S6, if the alarm control is not being performed at this time, the state is maintained as it is, and if the alarm control has been started in step S5, the alarm control is terminated.

[0132] The timing of the end of the process in FIG. 4 is not particularly limited, but for example, it may be triggered by the power of the electronic device 10 being turned off by an operation of the operation unit 18 or the route guidance function being stopped.

[0133] As described above, the control unit 11 of the electronic device 10 according to this embodiment recognizes the load cones 41 and 42 by the imaging unit 13 or the like and issues a warning regarding speed control. Since the small light transmitters and receivers 31 and 33 installed on the road are likely to come into contact with vehicles or pedestrians, the load cones 41 and 42 are often installed around the light transmitters and receivers 31 and 33. Therefore, by recognizing the load cones 41 and 42 as related elements of the light transmitters and receivers 31 and 33 from the image captured in front of the vehicle 50, it is possible to indirectly detect the approach to the speed measuring device 30 that uses the light transmitters and receivers 31 and 33, whose installation positions are not fixed and which do not irradiate radar waves or laser light to measure the speed with respect to the vehicle 50.

[0134] As in this embodiment, when the installation positions of the load cones 41 and 42 are in an area where pedestrians do not pass (for example, the road lane RW), it is advisable to issue a warning regarding speed control. When the installation positions of the load cones 41 and 42 are in an area where pedestrians pass (for example, the sidewalk SW), it is advisable to suppress (for example, not issue) the warning regarding speed control.

[0135] As in this embodiment, when the installation positions of the load cones 41 and 42 are close to the (left) road shoulder, it is advisable to issue a warning regarding speed control. When the installation positions of the load cones 41 and 42 are not close to the (left) road shoulder, it is advisable to suppress (for example, not issue) the warning regarding speed control. The load cones 41 and 42 arranged around the light transmitters and receivers 31 and 33 are often arranged close to the road shoulder on the road lane RW. Therefore, by recognizing the load cones 41 and 42 installed close to the road shoulder on the road lane RW as related elements of the light transmitters and receivers 31 and 33 from the image captured in front of the vehicle 50, it is possible to more reliably detect the approach to the speed measuring device 30 that uses the light transmitters and receivers 31 and 33.

[0136] As in this embodiment, when there is a separation zone S (such as a fence or a curb) for separating the sidewalk SW and the roadway RW, and load cones 41 and 42 are detected on the roadway RW side of the separation zone S, it is preferable to suppress (for example, not perform) an alarm related to speed control. When there is a separation zone S (such as a fence or a curb) for separating the sidewalk SW and the roadway RW, and load cones 41 and 42 are detected on the sidewalk SW side of the separation zone S, it is preferable to suppress (for example, not perform) an alarm related to speed control. The load cones 41 and 42 arranged around the light transmitters / receivers 31 and 33 are often arranged on the roadway RW side of the separation zone S between the roadway RW and the sidewalk SW. Therefore, by recognizing the load cones 41 and 42 installed on the roadway RW side of the separation zone S between the roadway RW and the sidewalk SW from the image captured in front of the vehicle 50 as related elements, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters / receivers 31 and 33.

[0137] As in this embodiment, when the load cones 41 and 42 are of a warm color system, it is preferable to give an alarm related to speed control. When the load cones 41 and 42 are not of a warm color system, it is preferable to suppress (for example, not perform) an alarm related to speed control. The load cones 41 and 42 arranged around the light transmitters / receivers 31 and 33 are often of a warm color system such as red, orange, or yellow. Therefore, by recognizing the warm-color load cones 41 and 42 from the image captured in front of the vehicle 50 as related elements, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters / receivers 31 and 33.

[0138] As in this embodiment, when the load cones 41 and 42 are provided with a reflector 41c, it is preferable to give an alarm related to speed control. When the load cones 41 and 42 are not provided with a reflector 41c, it is preferable to suppress (for example, not perform) an alarm related to speed control. The load cones 41 and 42 arranged around the light transmitters / receivers 31 and 33 often have a reflector 41c. Therefore, by recognizing the load cones 41 and 42 provided with a reflector 41c from the image captured in front of the vehicle 50 as related elements, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters / receivers 31 and 33.

[0139] As in this embodiment, the load cones 41 and 42 may issue an alarm when one or more of them are recognized at the above positions, but it is preferable to issue an alarm especially when two of them are recognized. When the distance between the two is approximately 3 m, it is preferable to issue an alarm or a strong alarm. When the distance between the two corresponds to a distance exceeding a predetermined distance (for example, 10 m, preferably 10 m), it is preferable not to issue an alarm. When a large number of load cones 41 and 42 are arranged, since there is a high possibility of shoulder work, it is preferable not to issue a speed limit alarm (an alarm regarding approach to a speed measuring device). The light transmitters and receivers 31 and 33 as the speed measuring device 30 are usually arranged in a pair, one in front and one behind, for starting and stopping a timer, and the load cones 41 and 42 arranged around the light transmitters and receivers 31 and 33 are also often arranged in a pair, one in front and one behind, on the carriageway RW accordingly. Therefore, by recognizing the load cones 41 and 42 arranged one in front and one behind on the travel path of the vehicle 50 from the image captured of the front of the vehicle 50 as related elements, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters and receivers 31 and 33. The light transmitters and receivers 31 and 33 as the speed measuring device 30 have a determined interval between the timer start and the timer stop for speed measurement, and this interval is often 3 m. Therefore, the load cones 41 and 42 arranged around the light transmitters and receivers 31 and 33 are also often arranged in a pair, one in front and one behind, with an interval of 3 m or more accordingly. Therefore, by recognizing the load cones 41 and 42 arranged one in front and one behind on the travel path of the vehicle 50 with an interval of 3 m or more from the image captured of the front of the vehicle 50 as related elements, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters and receivers 31 and 33.

[0140] For example, on the Metropolitan Expressway, enforcement is often carried out using the no-parking zones. When there are road cones 41 and 42 in the no-parking zone as in this embodiment, it is advisable to perform processing in the direction of issuing a traffic enforcement warning (warning regarding approaching the speed measuring device). The processing in the direction of issuing a warning means that when there are conditions for issuing other warnings and those conditions are met, a warning is issued. On the other hand, when there are conditions for not issuing a warning and those conditions are met, no warning is issued. Also, as processing in the direction of issuing a warning, when there are levels to the warning, increasing the level (degree) of the warning, issuing a stronger warning when a warning has already been issued, etc. are also included. The light transmitters and receivers 31 and 33 as the speed measuring device 30 may be installed in a no-parking zone where sufficient installation space can be obtained, and the road cones 41 and 42 arranged around the light transmitters and receivers 31 and 33 may also be arranged in the no-parking zone accordingly. Therefore, by recognizing the road cones 41 and 42 installed in the no-parking zone as related elements from the image captured of the front of the vehicle 50, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters and receivers 31 and 33.

[0141] Detect objects such as road cones 41 and 42 with a camera. For example, when two road cones 41 and 42 are installed at equal intervals, there is a possibility of a photoelectric tube.

[0142] Or, when a person sitting on a chair placed on the sidewalk is detected, there is a possibility of a photoelectric tube or other means of enforcement.

[0143] Also, the control unit 11 of the electronic device 10 in this embodiment recognizes the supervisor 43 using the speed measuring device 30 and issues a warning regarding speed enforcement.

[0144] If there is a monitor 43 facing the road RW from the sidewalk SW, it is advisable to perform processing in the direction of issuing a regulatory warning. The light transmitters and receivers 31 and 33 used in the speed measuring device 30 are often in an environment where there is a monitor 43 managing the speed measuring device 30 around. Since normal pedestrians walk along the sidewalk, they face the direction along the sidewalk. However, since the monitor 43 monitors the speed measuring device 30 installed on the road RW and passing vehicles 50, the monitor 43 often faces from the sidewalk SW side to the road RW side. Therefore, by recognizing a person (monitor 43) facing from the sidewalk SW side to the road RW side as a related element of the light transmitters and receivers 31 and 33 from the image captured in front of the vehicle 50, it is possible to more reliably detect an approach to the speed measuring device 30 using the light transmitters and receivers 31 and 33.

[0145] Also, if there is a monitor 43 wearing a cold-colored uniform such as navy blue or black, a hat, a reflective vest, a helmet, or other predetermined types of clothing, it is advisable to perform processing in the direction of issuing a regulatory warning. The monitor 43 around the light transmitters and receivers 31 and 33 is mainly a police officer and often wears a predetermined type of clothing such as a uniform. Therefore, by recognizing a person (monitor 43) wearing a predetermined type of clothing as a related element of the light transmitters and receivers 31 and 33 from the image captured in front of the vehicle 50, it is possible to more reliably detect an approach to the speed measuring device 30 using the light transmitters and receivers 31 and 33.

[0146] If there is a monitor 43 staying near the road cones 41 and 42, it is advisable to perform processing in the direction of issuing a regulatory warning. The monitor 43 around the light transmitters and receivers 31 and 33 often stays on the spot to monitor the speed measuring device 30 using the light transmitters and receivers 31 and 33. Road cones 41 and 42 are installed around the light transmitters and receivers 31 and 33, and the monitor 43 also stays near them. Therefore, by recognizing a person (monitor 43) staying near the road cones 41 and 42 as a related element of the light transmitters and receivers 31 and 33 from the image captured in front of the vehicle 50, it is possible to more reliably detect an approach to the speed measuring device 30 using the light transmitters and receivers 31 and 33.

[0147] If there is the head of the monitor 43 that does not move for a predetermined time in the range of 1 m to 1.2 m in height on the sidewalk SW, it is advisable to perform processing in the direction of giving a warning for enforcement. The monitor 43 around the light transmitters / receivers 31, 33 often sits on a pipe chair 43a or the like and monitors the speed measuring device 30. Then, the head of the monitor 43 is positioned in the range of 1 m to 1.2 m in height on the sidewalk, and the head often does not move from that position during monitoring. Therefore, by recognizing the head of a person who does not move for a predetermined time in the range of 1 m to 1.2 m in height on the sidewalk from the image captured in front of the vehicle 50 as a related element of the light transmitters / receivers 31, 33, it is possible to more reliably detect an approach to the speed measuring device 30 using the light transmitters / receivers 31, 33.

[0148] In addition, the control unit 11 of the electronic device 10 of the present embodiment recognizes the measurement lights L1, L2 emitted by the photoelectric tube type speed measuring device 30 and gives a warning regarding speed enforcement.

[0149] When the measurement lights L1 and L2 are detected as crossing the road lane RW, it is advisable to perform processing in the direction of giving a warning. In a so-called photoelectric speedometer 30, the measurement lights L1 and L2 irradiated from the light transmitters and receivers 31 and 33 are irradiated in a direction crossing the path of the vehicle 50. Although the measurement lights L1 and L2 are not normally visible to the naked eye, an imaging unit such as a camera used in a smartphone or the like can image light with a wider wavelength range than the naked eye, such as in the infrared region. Therefore, by recognizing the measurement lights L1 and L2 crossing the path of the vehicle 50 as related elements from the image taken of the front of the vehicle 50, it is possible to more reliably detect the approach to the speedometer 30 using the light transmitters and receivers 31 and 33. For example, when a telescopic infrared camera is installed on the vehicle 50 facing forward in the traveling direction and an image corresponding to light crossing the road from left to right is detected in the video imaged by the infrared camera, it is advisable to recognize it as "measurement light crossing the path of the vehicle reflected in the image taken of the front of the vehicle". In particular, when detecting light that crosses within a first predetermined range within the road but does not cross a second predetermined range outside the first predetermined range within the road, it is advisable to recognize it as "measurement light crossing the path of the vehicle reflected in the image taken of the front of the vehicle". As the first predetermined range, for example, it is advisable to set it as the location corresponding to the road lane RW. As the second predetermined range, it is advisable to set it as the range corresponding to the sidewalk. In this way, the light crossing the road for measuring the speed of the vehicle 50 can be more reliably recognized, and false alarms can be reduced. In particular, as the first predetermined range, it is advisable to set it as the range of the lane in the same traveling direction as the own vehicle 50 in the road lane RW. For example, in the case of a two-way road with one lane on each side, it is advisable to set it as the range of the lane that is currently the path of the own vehicle. For example, in the case of a road with two lanes on one side and four lanes on both sides, it is advisable to set it as the range of the two lanes that are currently the path of the own vehicle. It is advisable to provide a predetermined space between the first predetermined range and the second predetermined range. In this way, false alarms can be further reduced.

[0150] When two measurement lights L1 and L2 are detected crossing the road lane RW at a predetermined interval (especially an interval of about 3 m), it is advisable to perform processing in the direction of giving a warning for enforcement in particular. When there is an interval greater than or equal to the predetermined value, it is advisable to perform processing in the direction of suppressing the warning for enforcement. The light transmitters / receivers 31 and 33 as the speed measuring device 30 have a fixed interval between the start timer and the stop timer for speed measurement, and this interval is often 3 m. Therefore, by recognizing a pair of measurement lights L1 and L2 that cross the vehicle's path at an interval of 3 m in front of the vehicle 50 on the vehicle's path as related elements from the image captured of the front of the vehicle 50, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters / receivers 31 and 33.

[0151] As in this embodiment, it is advisable to provide an imaging unit 13 that receives the wavelengths of the two measurement lights L1 and L2 for detecting the two measurement lights L1 and L2, where the wavelengths of the two measurement lights L1 and L2 are the same and the wavelengths are in the infrared region. The imaging unit 13 is preferably a camera having sensitivity in the infrared region as in this embodiment. The light transmitters / receivers 31 and 33 for the start timer and the stop timer as the speed measuring device 30 often use measurement lights L1 and L2 of the same wavelength. Therefore, by recognizing a pair of measurement lights L1 and L2 that cross the vehicle's path at the same wavelength in front of the vehicle 50 on the vehicle's path as related elements from the image captured of the front of the vehicle 50, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters / receivers 31 and 33.

[0152] It is particularly advisable to combine with the recognition of the above road cones 41 and 42. It is advisable to record a video (captured image) using the recognition of the road cones 41 and 42 and / or the recognition of the measurement lights L1 and L2 as a trigger.

[0153] As in this embodiment, it is advisable to provide a function for detecting whether the two measurement lights L1 and L2 are at a predetermined interval (which is preferably about 3 m). When they are not at the predetermined interval (which is preferably about 3 m), it is advisable to give a notification indicating that there may be a possibility of mismeasurement. In particular, when the interval is narrower than the predetermined interval, it is advisable to give a notification indicating that there may be a possibility of mismeasurement.

[0154] As in this embodiment, it is preferable to provide a function for detecting whether or not the two measurement lights L1 and L2 are parallel. When they are not parallel, it is preferable to give a notification indicating that there is a possibility of mismeasurement. The light transmitters / receivers 31 and 33 for timer start and timer stop as the speed measuring device 30 need to irradiate the measurement lights L1 and L2 in parallel front and back in order to accurately measure the speed. Therefore, by recognizing a pair of parallel measurement lights L1 and L2 that cross the vehicle path in the vehicle path from the image captured of the front of the vehicle 50 as related elements, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters / receivers 31 and 33.

[0155] As in this embodiment, when the measurement lights L1 and L2 are detected at a position 9 cm or higher from the ground, it is preferable to give a notification indicating that there is a possibility of mismeasurement. The light transmitters / receivers 31 and 33 as the speed measuring device 30 need to irradiate the measurement lights L1 and L2 so as to be below the lower surface of the vehicle body in order to detect the passage of the front wheels of a normal vehicle. Therefore, by recognizing the measurement lights L1 and L2 that cross the vehicle path from the image captured of the front of the vehicle 50 and are less than 9 cm from the road surface as related elements, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters / receivers 31 and 33.

[0156] Also, the control unit 11 of the electronic device 10 in this embodiment recognizes other related elements related to the first light transmitter / receiver 31 or the second light transmitter / receiver 33 and gives an alarm regarding speed enforcement.

[0157] As in this embodiment, it is preferable to determine whether there are reflectors (reflectors 32 and 34) on the right shoulder side, and if so, perform processing in the direction of giving an enforcement alarm. The speed measuring device 30 using the light transmitters / receivers 31 and 33 has reflectors 32 and 34 that reflect the measurement lights L1 and L2 irradiated from the light transmitters / receivers 31 and 33. Therefore, by recognizing the reflectors 32 and 34 as related elements from the image captured of the front of the vehicle 50, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters / receivers 31 and 33.

[0158] As in this embodiment, when, for example, a one-box car 44 that stops on the road shoulder together with the load cones 41 and 42 is detected as the detection of other installed objects, it is advisable to perform processing in the direction of issuing a warning for enforcement. Many of the vehicles used by the supervisor 43 are one-box cars 44, and they are parked near the speed measuring device 30. Therefore, in addition to the above-mentioned related elements, by recognizing the one-box car as a related element from an image obtained by imaging the front of the vehicle 50, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters and receivers 31 and 33.

[0159] Also, as in this embodiment, when a pipe chair 43a is detected as other installed objects, it is advisable to perform processing in the direction of issuing a warning for enforcement. The supervisor 43 often sits on the pipe chair 43a. Therefore, in addition to the above-mentioned related elements, by recognizing the pipe chair 43a as a related element from an image obtained by imaging the front of the vehicle 50, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters and receivers 31 and 33.

[0160] As described above, the system of this embodiment is provided in the vehicle 50 and has a control unit 11 that performs warning control to warn of an approach to the light transmitters and receivers 31 and 33 that transmit and receive the measurement lights L1 and L2 crossing the travel path of the vehicle 50. It also has a program for realizing the functions of the system. By doing so, the user can obtain a warning of an approach to the light transmitters and receivers 31 and 33 that transmit and receive the measurement lights L1 and L2 crossing the travel path of the vehicle 50 in the vehicle 50. The light transmitters and receivers 31 and 33 that transmit and receive the measurement lights L1 and L2 crossing the travel path of the vehicle 50 are preferably so-called photoelectric tube type speed measuring devices. In this way, the user can be made aware of the possibility of the installation of a so-called photoelectric tube type speed measuring device using the light transmitters and receivers 31 and 33 that transmit and receive the measurement lights L1 and L2 crossing the travel path of the vehicle 50 at a certain location.

[0161] Also, as in this embodiment, the light transmitters and receivers 31 and 33 are preferably used for the speed measuring device 30. By doing so, the user can be made aware of the approach of the speed measuring device 30 using the light transmitters and receivers 31 and 33 for enforcement.

[0162] In particular, it is preferable to perform warning control for warning of approaching a so-called photoelectric tube type speed measuring device 30 (also referred to as a photoelectric tube type orbis) using the light transmitters and receivers 31 and 33 as in the present embodiment. As the warning content, it is not a warning indicating approaching a speed measuring device 30 other than the photoelectric tube type, but it is preferable to be a warning indicating approaching a certain position where the photoelectric tube type speed measuring device 30 is located. For example, instead of "There is an orbis 500 m ahead. Caution speed!", it is preferable to give a warning such as "There may be a photoelectric tube type orbis installed 500 m ahead. Caution speed!", or "There is a photoelectric tube type orbis 500 m ahead. Caution speed!". "There may be a photoelectric tube type orbis installed 500 m ahead. Caution speed!" is also acceptable, but in particular, it is preferable to have something indicating specifically related to the photoelectric tube type orbis, such as "There is a road cone related to the photoelectric tube type orbis 500 m ahead. Caution speed!", and in particular, it is preferable to have something indicating at least a part of the things related to the photoelectric tube type orbis. In this way, the user can pay attention to the thing, easily confirm whether the photoelectric tube type orbis is actually installed at that position or not. The warning content may be stored in the storage means of the system and output by voice, character string, image, etc. The conventional system stores the position of the speed measuring device 30 itself and gives a warning indicating approaching the speed measuring device 30, but in the case of a configuration where whether to install the speed measuring device 30 can be changed at any time like the photoelectric tube type orbis, and the vehicle 50 is not irradiated with microwave or laser light to measure the speed, it is possible to give a warning about approaching the photoelectric tube type orbis where the speed measuring device 30 cannot be directly detected.

[0163] The control unit 11 recognizes related elements related to the light transmitters and receivers 31 and 33 and performs the warning control. The related elements include the light transmitters and receivers 31 and 33 themselves, the reflectors 32 and 34, and the measurement control unit is also one of the related elements. By recognizing the related elements related to the light transmitters and receivers 31 and 33 in this way, it is possible to detect not only the case where the light transmitters and receivers 31 and 33 can be directly detected, but also to detect approaching the speed measuring device 30 using the light transmitters and receivers 31 and 33 and give a warning to the user.

[0164] The control unit 11 performs the alarm control by recognizing a plurality of related elements related to the light transmitters / receivers 31 and 33. By doing so, by recognizing a plurality of related elements and performing alarm control, the probability of misrecognizing the light transmitters / receivers 31 and 33 can be reduced, and false warnings can be suppressed.

[0165] The control unit 11 recognizes related elements related to the light transmitters / receivers 31 and 33, and performs different alarm controls according to the types of the recognized related elements. For example, different alarm controls are performed when the recognized related elements are in the relationship of the load cones 41 and 42 and when they are in the relationship of the supervisor. By doing so, by performing different alarm controls according to the types of the recognized related elements, the basis for the approach of the photoelectric type orbis to the user can be clearly shown.

[0166] Further, the control unit 11 recognizes related elements related to the light transmitters / receivers 31 and 33, and performs different alarm controls according to the number of the recognized related elements. For example, since the higher the number of recognized related elements, the higher the accuracy of the approach to the photoelectric type orbis, the higher the accuracy, the stronger the alarm for alerting the user. By doing so, by performing different alarm controls according to the number of the recognized related elements, a more appropriate alarm can be given to the user.

[0167] As described above, by the electronic device 10 issuing an alarm regarding the speed measuring device 30, users such as the driver of the vehicle 50 are made to pay attention to speed enforcement, which contributes to safe driving.

[0168] [Second Embodiment] In the electronic device 10 of the first embodiment, the control unit 11 gives an alarm when it recognizes any one of the load cones 41 and 42, the supervisor 43, the measurement lights L1 and L2, and other related elements, but an alarm may be given when the types of a predetermined number or more of related elements are recognized. Since the configuration of the electronic device 10 of this embodiment is the same as that of the first embodiment, the same reference numerals are given to each part and the description is omitted.

[0169] FIG. 6 is a flowchart showing the operation of the control unit 11 of the electronic device 10 according to the second embodiment. The same processes as those in the first embodiment of FIG. 4 are denoted by the same reference numerals and the description thereof is omitted.

[0170] In this embodiment, the control unit 11 acquires a captured image of the front of the vehicle captured by the imaging unit 13 in step S1, and in step S2, analyzes the acquired captured image to determine whether load cones 41 and 42 as related elements of the first light transmitter / receiver 31 or the second light transmitter / receiver 33 are recognized. When the control unit 11 determines "Yes" in step S2, that is, when load cones 41 and 42 that satisfy the predetermined conditions as described in the first embodiment are recognized from the captured image, the process proceeds to step S11. On the other hand, when the control unit 11 determines "No" in step S2, the process proceeds to step S3. In step S11, the control unit 11 increments the number of recognized related element types by 1 and proceeds to step S3.

[0171] In step S3, the control unit 11 analyzes the acquired captured image to determine whether a supervisor 43 as a related element of the first light transmitter / receiver 31 or the second light transmitter / receiver 33 is recognized. When the control unit 11 determines "Yes" in step S3, that is, when a supervisor 43 that satisfies the predetermined conditions as described in the first embodiment is recognized from the captured image, the process proceeds to step S12. On the other hand, when the control unit 11 determines "No" in step S3, the process proceeds to step S4. In step S12, the control unit 11 increments the number of recognized related element types by 1 and proceeds to step S4.

[0172] In step S4, the control unit 11 analyzes the acquired captured image to determine whether measurement lights L1 and L2 as related elements of the first light transmitter / receiver 31 or the second light transmitter / receiver 33 are recognized. When the control unit 11 determines "Yes" in step S4, that is, when measurement lights L1 and L2 that satisfy the predetermined conditions as described in the first embodiment are recognized from the captured image, the process proceeds to step S13. On the other hand, when the control unit 11 determines "No" in step S4, the process proceeds to step S14. In step S13, the control unit 11 increments the number of recognized related element types by 1 and proceeds to step S14.

[0173] In step S14, the control unit 11 determines whether it has recognized other related elements of the first light transmitter / receiver 31 or the second light transmitter / receiver 33 based on the analyzed captured image or the information obtained via the GPS receiver 15 or the communication unit 16.

[0174] In step S14, other related elements include the first reflector 32 or the second reflector 34, the one-box car 44 parked on the road shoulder, and the pipe chair 43a, which were recognized as other related elements in the first embodiment. In addition to these related elements, related elements within a predetermined range from the positions of the related elements recognized in steps S2 to S4 (road cones 41, 42, supervisor 43, measurement lights L1, L2) are recognized. Specifically, in this embodiment, those that satisfy the following predetermined conditions for other related elements are recognized as related elements.

[0175] For example, as one of the predetermined conditions for other related elements, as shown in FIG. 2, the control unit 11 recognizes the viaducts 45a, 45b that intersect the lane RW on which the vehicle 50 travels within a predetermined range (e.g., 200 m) from the above-described related elements as related elements. One method for recognizing the viaducts 45a, 45b may be based on whether there is an image portion corresponding to the viaduct in the captured image, for example.

[0176] The method for recognizing the viaducts 45a, 45b is not limited to being based on the captured image. For example, the control unit 11 may recognize the viaducts 45a, 45b within a predetermined range (e.g., 200 m) from the above-described related elements as related elements based on the map data stored in the storage unit 17 or the position information based on the GPS receiver 15.

[0177] As one method for the control unit 11 to recognize the viaducts 45a, 45b, it may obtain the information acquired by another vehicle 60 via the communication unit 16 and recognize the viaducts 45a, 45b within a predetermined range (e.g., 200 m) from the above-described related elements as related elements based on the information from the other vehicle 60.

[0178] When the control unit 11 of the present embodiment recognizes the viaducts 45a and 45b by any one of the three methods of the photographed image, the map data, the GPS information, and the information from the other vehicle 60, it determines that one condition of the other related elements is satisfied. Note that the method for recognizing the viaducts 45a and 45b can be arbitrarily set. For example, when the information from the other vehicle cannot be obtained, the determination of the recognition of the viaduct may be made only based on the photographed image, the map data, and the GPS information. Also, the number of methods for determining that the viaducts 45a and 45b are recognized can be arbitrarily set. When the viaducts 45a and 45b are recognized by two methods or when the viaducts 45a and 45b are recognized by three methods, it may be determined that one condition of the other related elements is satisfied. Further, every time the viaducts 45a and 45b are recognized by one method, it may be determined that one condition of the other related elements is satisfied.

[0179] The control unit 11 may not only recognize the viaducts 45a and 45b, but also, as one of the predetermined conditions regarding the other related elements, acquire SNS information via the communication unit 16 and recognize the information on the enclosures (fences 47a and 47b) on the viaducts 45a and 45b obtained from the SNS information as a related element.

[0180] The information on the enclosures (fences 47a and 47b) on the viaducts 45a and 45b in the SNS information is obtained, for example, by narrowing down the posts regarding the photoelectric speedometer 30 from the keywords with hashtags and acquiring the information on the enclosures (fences 47a and 47b) from the position information described or attached in the posts.

[0181] In this way, at a location where there is an overpass 45a intersecting with the road lane RW within a predetermined range (for example, within 200 m) ahead of the already recognized related elements, it is advisable to perform processing in the direction of issuing a warning for enforcement. This is because there is a possibility of photographing a violating vehicle from the overpass 45a. Also, at a location where there is an overpass 45b within a predetermined range (for example, within 200 m) behind the already recognized related elements, it is advisable to perform processing in the direction of issuing a warning for enforcement. Around the speed measuring device 30, there are often overpasses 45a and 45b for photographing the vehicle 50 when the speed of the vehicle 50 measured by the speed measuring device 30 is equal to or higher than a predetermined speed. If photographing is performed from the overpasses 45a and 45b that intersect with the road lane RW on which the vehicle 50 travels, it is possible to photograph the vehicle 50 from the front. Therefore, by recognizing the overpasses 45a and 45b within a predetermined range from the related elements based on the image of the front of the vehicle 50 and / or map information, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters and receivers 31 and 33.

[0182] When it is detected (by another vehicle 60) that there is an enclosure on the shoulder portion on the side of the overpasses 45a and 45b, it is advisable to perform more processing in the direction of issuing a warning for enforcement. For example, it is advisable to detect that there is a blindfold (such as a construction fence) on the shoulder side of the intersecting elevated road with the drive recorder of another vehicle 60 and upload it to the server, and obtain information on that location from the server. In order to ensure a space for photographing the vehicle 50 passing under the overpasses from the overpasses 45a and 45b, there are often enclosures formed by fences or the like on the overpasses. In recent years, it is also possible to obtain information acquired by another vehicle 60. By obtaining the enclosure information from such information acquired by another vehicle 60 and recognizing it as a related element, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters and receivers 31 and 33.

[0183] Using the hash tags of the SNS, remember the hash tags related to the crackdown (for example, #mobile orbis), search the SNS with that hash tag, and be equipped with a parser that acquires and extracts text information (and location information), and have a function of obtaining location information from the extracted information. In recent years, road information and the like may be posted on SNS information. By acquiring the surrounding information from such SNS information and recognizing it as a related element, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters and receivers 31 and 33.

[0184] Further, the control unit 11 may recognize, as the related element, that the vehicle 50 is traveling in a predetermined section where a straight line of a predetermined distance or more continues, for example, based on the map information stored in the storage unit 17. This predetermined section may be, for example, a section where there is a high possibility that the photoelectric tube type speed measuring device 30 stored in the storage unit 17 is installed. It is also possible to issue a GPS warning in the form of a "new crackdown device installation area (tentative)" at a location that satisfies the three conditions of a road where speed is likely to occur, where a photoelectric tube can be installed, and there are viaducts 45a and 45b where a camera can be installed nearby. The GPS warning is a warning issued when the point indicated by the GPS information has a predetermined proximity relationship with the crackdown point. For example, it is preferable to set a warning area in advance on the map and issue the warning when entering the area based on the GPS information. The speed measuring device 30 is often installed in a long straight section where the vehicle 50 can reach a sufficient speed. Therefore, by recognizing, as the related element, that the vehicle 50 is traveling in a predetermined section where a straight line of a predetermined distance or more continues based on the map information, it is possible to more reliably detect the approach to the speed measuring device 30 using the light transmitters and receivers 31 and 33.

[0185] When the control unit 11 determines "Yes" in step S14, that is, when it recognizes other related elements that satisfy the above-described predetermined conditions, the process proceeds to step S15. On the other hand, when the control unit 11 determines "No" in step S14, the process proceeds to step S16. In step S15, the control unit 11 increments the number of recognized related element types by 1 and proceeds to step S16.

[0186] In step S16, the control unit 11 determines whether the number of recognized related element types, which is the number of recognized related element types, is equal to or greater than a predetermined number. The predetermined number can be arbitrarily set. For example, in this embodiment, it is assumed that the predetermined number is set to 3.

[0187] If the control unit 11 determines "Yes" in step S16, that is, if the number of recognized related element types is equal to or greater than the predetermined number, the process proceeds to step S6, and an alarm is issued in the same manner as in the first embodiment. On the other hand, if the control unit 11 determines "No" in step S16, the process proceeds to step S7, and no alarm is issued.

[0188] As described above, the control unit 11 of the electronic device 10 in this embodiment determines whether an alarm is necessary according to the number of recognized related element types. The alarm may vary according to the number of recognized related element types. For example, since the higher the number of recognized related elements, the higher the accuracy of the approach of the photoelectric tube type speed measuring instrument 30, the higher the accuracy, the stronger the alarm for alerting the user. Note that instead of the number of recognized related element types, the number of related elements that satisfy the above-described conditions may be counted.

[0189] As described above, by the electronic device 10 issuing an alarm regarding the photoelectric tube type speed measuring instrument 30, users such as the driver of the vehicle 50 are made to pay attention to speed enforcement, which contributes to safe driving.

[0190] [Modification Example] The present disclosure is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist.

[0191] (Modification Example 1) When a part of the load cones 41 and 42, the monitor 43, the measurement lights L1 and L2, and other related elements are not recognized from the image captured by the imaging unit at the front of the vehicle 50, the control unit 11 of the electronic device 10 may suppress the control for issuing an alarm. In this case, suppressing the control for issuing an alarm means that, in addition to not issuing an alarm, there are methods such as reducing the volume, reducing the display, and lowering the alarm level compared to the case where the alarm is not suppressed even if it is issued. By doing so, the alarm due to the misrecognition of the photoelectric speed measuring device 30 can be suppressed, and the provision of unnecessary information to the user can be suppressed.

[0192] (Modification 2) A part of the configurations and operations described in each of the above-described embodiments may be omitted or changed. For example, the photoelectric speed measuring device 30 does not necessarily have the load cones 41 and 42 or the monitor 43, and other elements may be added as long as they are used for the operation and installation of the speed measuring device 30.

[0193] In the step S1 in the first and second embodiments described above, whether to use both the first load cone 41 and the second load cone 42 or only one of them as the load cone to be recognized, whether to use both the first measurement light L1 and the second measurement light L2 or only one of them as the measurement light to be recognized in step S3, and whether to use both the first reflector 32 and / or the second reflector 34 or only one of them as the reflector to be recognized in step S5 may be displayed in advance on the setting screen of the electronic device 10 or the like and set by the user's operation, and the determination may be made according to the setting. Also, a predetermined number of predetermined conditions for determining the determination results in steps S2 to S5 and S14 as "Yes", or in which combinations of the predetermined conditions in steps S2 to S5 and S14 are determined as "Yes" may be displayed in advance on the setting screen of the electronic device 10 or the like and set by the user's operation, and the determination of "Yes" or "No" may be made according to the setting.

[0194] In addition, for each of the determinations in steps S2 to S5 and S14 in the first and second embodiments, a setting for whether to make the determination may be provided.

[0195] (Modification Example 3) In addition to or instead of recognizing the load cones 41 and 42, the supervisor 43, the measurement lights L1 and L2, and other related elements described in the first and second embodiments, the control unit 11 of the electronic device 10 may receive a radio signal of a predetermined frequency related to speed enforcement by the wireless reception unit 26, and perform alarm control based on the received result. This is because a radio signal of wireless related to speed enforcement (also called on-site enforcement wireless) may propagate at the enforcement location and its vicinity. The predetermined frequency related to speed enforcement may be, for example, 350.1 MHz.

[0196] For example, when the control unit 11 receives a radio signal of this predetermined frequency, it may increase the accuracy of approaching the speed measuring device 30 described above (for example, raise the alarm level), or decrease the accuracy when it does not receive the signal (for example, lower the alarm level). Alternatively, the reception of the radio signal of this predetermined frequency may be recognized as one of the related elements of the transceiver, and the reception of the radio signal of the predetermined frequency may be set as one of the conditions for giving an alarm. In this way, it can be expected that the accuracy of the alarm indicating the approach to the photoelectric speed measuring device 30 will be improved. In other words, false alarms due to misrecognition of the photoelectric speed measuring device 30 can be further suppressed, and the provision of useless information to the user can be suppressed.

[0197] The alarm control performed by the electronic device 10 may be, in addition to the control for giving an alarm before passing the enforcement location by the speed measuring device 30, also the control for giving an alarm during or after passing the enforcement location. In this case, the alarm control may be, for example, the control for issuing a message such as "There is a possibility of passing through the enforcement location by the photoelectric orbis." or "There is a possibility of having passed through the enforcement location by the photoelectric orbis." by display or sound. Such alarm control can also be expected to contribute to the safe driving of the driver. Such alarm control can be performed based on an image captured not only in front of the vehicle 50 but also on an image captured on the side or rear. In addition, as a method for recognizing related elements, in addition to the method of recognizing using a captured image, a method of recognizing using detection means for detecting the presence of various sensors and other related elements can be considered.

[0198] The scope of the present invention is not limited to the configurations explicitly described in the specification or to limitations, but also includes combinations of various aspects of the present invention disclosed in this specification within its scope. Among the present invention, the configuration for which a patent is sought is specified in the appended claims. However, even for a configuration that is not currently specified in the claims, the configurations disclosed in this specification are intended to be the claims in the future.

[0199] Note that the scope of the present invention is not limited to the configurations explicitly described in the specification or to limitations, but also includes combinations of various aspects of the present invention disclosed in this specification within its scope. Among the present invention, the configuration for which a patent is sought is specified in the appended claims. However, even for a configuration that is not currently specified in the claims, the configurations disclosed in this specification are intended to be the claims in the future.

[0200] The invention of the present application is not limited to the configurations described in the above-described embodiments. The constituent elements of the above-described embodiments and modification examples may be arbitrarily selected and combined. Also, any constituent element of each embodiment or modification example may be arbitrarily combined with any constituent element described in the means for solving the invention or a constituent element embodying any constituent element described in the means for solving the invention. The applicant also intends to obtain rights in amendments or divisional applications of the present application. Even if there are descriptions such as "in the case of ~" or "when ~", the descriptions are not limited to such cases or times. The applicant also discloses configurations that are not such cases or times and intends to obtain rights. Also, the descriptions with an order are not limited to this order. The applicant also discloses configurations in which some parts are deleted or the order is reversed and intends to obtain rights.

[0201] Also, due to the change to the design registration application, it has the intention to acquire rights for the overall design or partial design. Although the drawings depict the entire device in solid lines, the drawings include not only the overall design but also partial designs that claim parts of the device. For example, not only can some members of the device be partial designs, but the drawings also include partial designs of parts of the device regardless of their relationship with the members. As parts of the device, they can be either some members of the device or parts of those members. Regarding the overall design, of course, it has the intention to obtain rights for partial designs in which any part of the solid-line portion of the drawings is made into a dashed-line portion. Also, regarding the modules, members, parts, etc. inside the housing of the device, those shown in the drawings are all independently subject to transactions, and similarly, it has the intention to make changes to the design registration application for rights acquisition.

Explanation of Reference Signs

[0202] 10: Electronic device 11: Control unit 12: Display unit 13: Imaging unit 14: Speaker 15: GPS receiver 16: Communication unit 17: Memory unit 17a: Database 18: Operation unit 19: Sensor unit 20: Mounting unit 21: Power supply unit 22: Light emitting unit 23: Cable terminal unit 24: Laser light receiving unit 25: Radar wave receiving unit 26: Wireless receiving unit 30: Speed measuring instrument 31: First light transmitter / receiver 32: First reflector 33: Second light transmitter / receiver 34: Second reflector 35: Measurement control unit 40: Vehicle 41: First load cone 41a: Bottom 41b: Cone part 41c: Reflective material 42: Second load cone 43: Supervisor 43a: Pipe chair 44: One-box car 45a, 45b: Viaduct 46a, 46b: Censoring camera 47a, 47b: Fence 50: Vehicle 60: Other vehicle

Claims

1. A system having a control unit that is provided in a vehicle and performs warning control for warning of an approach to a light transmitter / receiver that transmits and receives measurement light crossing the vehicle's path. The control unit recognizes a road cone installed on a road lane shown in an image captured of the front of the vehicle as a related element related to the light transmitter / receiver and performs the warning control.

2. A system having a control unit that is provided in a vehicle and performs warning control for warning of an approach to a light transmitter / receiver that transmits and receives measurement light crossing the vehicle's path. The control unit recognizes a road cone installed near the road shoulder on a road lane shown in an image captured of the front of the vehicle as a related element related to the light transmitter / receiver and performs the warning control.

3. A system having a control unit that is provided in a vehicle and performs warning control for warning of an approach to a light transmitter / receiver that transmits and receives measurement light crossing the vehicle's path. The control unit recognizes a road cone installed on the road lane side of a separation zone between a road lane and a sidewalk shown in an image captured of the front of the vehicle as a related element related to the light transmitter / receiver and performs the warning control.

4. A system having a control unit that is provided in a vehicle and performs warning control for warning of an approach to a light transmitter / receiver that transmits and receives measurement light crossing the vehicle's path. The control unit recognizes a warm-colored road cone shown in an image captured of the front of the vehicle as a related element related to the light transmitter / receiver and performs the warning control.

5. A system having a control unit that is provided in a vehicle and performs warning control for warning of an approach to a light transmitter / receiver that transmits and receives measurement light crossing the vehicle's path. The control unit recognizes a road cone equipped with a reflective material shown in an image captured of the front of the vehicle as a related element related to the light transmitter / receiver and performs the warning control.

6. A system having a control unit that is provided in a vehicle and performs warning control for warning of an approach to a light transmitter / receiver that transmits and receives measurement light crossing the vehicle's path. The control unit recognizes road cones arranged front and rear on the vehicle's path shown in an image captured of the front of the vehicle as related elements related to the light transmitter / receiver and performs the warning control.

7. A system having a control unit that performs warning control for warning of approach to a light transmitter / receiver that transmits and receives measurement light crossing the path of a vehicle, provided on the vehicle, wherein the control unit performs the warning control by recognizing road cones arranged at intervals of 3 m or more in the front-rear direction on the path of the vehicle shown in an image obtained by imaging the front of the vehicle as related elements related to the light transmitter / receiver.

8. A system having a control unit that performs warning control for warning of approach to a light transmitter / receiver that transmits and receives measurement light crossing the path of a vehicle, provided on the vehicle, wherein the control unit performs the warning control by recognizing road cones installed in a no-parking zone shown in an image obtained by imaging the front of the vehicle as related elements related to the light transmitter / receiver.

9. A system having a control unit that performs warning control for warning of approach to a light transmitter / receiver that transmits and receives measurement light crossing the path of a vehicle, provided on the vehicle, wherein the control unit performs the warning control by recognizing a reflector arranged on the road shoulder side to the right of the vehicle shown in an image obtained by imaging the front of the vehicle as related elements related to the light transmitter / receiver.

10. A system having a control unit that performs warning control for warning of approach to a light transmitter / receiver that transmits and receives measurement light crossing the path of a vehicle, provided on the vehicle, wherein the control unit performs the warning control by recognizing the measurement light crossing the path of the vehicle shown in an image obtained by imaging the front of the vehicle as related elements related to the light transmitter / receiver.

11. A system having a control unit that performs warning control for warning of approach to a light transmitter / receiver that transmits and receives measurement light crossing the path of a vehicle, provided on the vehicle, wherein the control unit performs the warning control by recognizing a pair of measurement lights crossing the path of the vehicle at intervals of 3 m in the front-rear direction on the path of the vehicle shown in an image obtained by imaging the front of the vehicle as related elements related to the light transmitter / receiver.

12. A system having a control unit that performs warning control for warning of approach to a light transmitter / receiver that transmits and receives measurement light crossing the path of a vehicle, provided on the vehicle, A system in which the control unit performs the warning control by recognizing, as a related element related to the light transmitter / receiver, measurement light having the same wavelength and crossing a pair of front and rear paths on the traveling path of the vehicle as reflected in an image obtained by imaging the front of the vehicle. **Claim 13**: A vehicle provided with a control unit that performs warning control for warning of an approach to a light transmitter / receiver that transmits and receives measurement light crossing the traveling path of the vehicle, wherein the control unit performs the warning control by recognizing, as a related element related to the light transmitter / receiver, a pair of parallel measurement lights crossing the traveling path in the front and rear on the traveling path of the vehicle as reflected in an image obtained by imaging the front of the vehicle. **Claim 14**: A vehicle provided with a control unit that performs warning control for warning of an approach to a light transmitter / receiver that transmits and receives measurement light crossing the traveling path of the vehicle, wherein the control unit performs the warning control by recognizing, as a related element related to the light transmitter / receiver, measurement light crossing the traveling path of the vehicle at less than 9 cm from the road surface as reflected in an image obtained by imaging the front of the vehicle. **Claim 15**: A vehicle provided with a control unit that performs warning control for warning of an approach to a light transmitter / receiver that transmits and receives measurement light crossing the traveling path of the vehicle, wherein the control unit performs the warning control by recognizing, as a related element related to the light transmitter / receiver, a one-box car parked on the road shoulder as reflected in an image obtained by imaging the front of the vehicle. **Claim 16**: A vehicle provided with a control unit that performs warning control for warning of an approach to a light transmitter / receiver that transmits and receives measurement light crossing the traveling path of the vehicle, wherein the control unit performs the warning control by recognizing, as a related element related to the light transmitter / receiver, a pipe chair as reflected in an image obtained by imaging the front of the vehicle. **Claim 17**: A vehicle provided with a control unit that performs warning control for warning of an approach to a light transmitter / receiver that transmits and receives measurement light crossing the traveling path of the vehicle, wherein the control unit performs the warning control by recognizing, as a related element related to the light transmitter / receiver, an elevated bridge intersecting the lane in which the vehicle travels within a predetermined range from a related element related to the light transmitter / receiver as reflected in an image obtained by imaging the front of the vehicle.

18. A control unit that is provided in a vehicle and performs warning control to warn of approaching a light transmitter / receiver that transmits and receives measurement light crossing the vehicle's path. The control unit is a system that, based on map information, recognizes an overpass that intersects the lane on which the vehicle is traveling within a predetermined range from related elements related to the light transmitter / receiver, and performs the warning control as a related element related to the light transmitter / receiver.

19. A control unit that is provided in a vehicle and performs warning control to warn of approaching a light transmitter / receiver that transmits and receives measurement light crossing the vehicle's path. The control unit is a system that, based on information acquired by another vehicle, recognizes enclosure information on an overpass that intersects the lane on which the vehicle is traveling within a predetermined range from related elements related to the light transmitter / receiver, as a related element related to the light transmitter / receiver, and performs the warning control.

20. A control unit that is provided in a vehicle and performs warning control to warn of approaching a light transmitter / receiver that transmits and receives measurement light crossing the vehicle's path. The control unit is a system that, based on SNS information, recognizes enclosure information on an overpass that intersects the lane on which the vehicle is traveling within a predetermined range from related elements related to the light transmitter / receiver, as a related element related to the light transmitter / receiver, and performs the warning control.

21. A control unit that is provided in a vehicle and performs warning control to warn of approaching a light transmitter / receiver that transmits and receives measurement light crossing the vehicle's path. The control unit is a system that, based on map information, recognizes that the vehicle is traveling in a predetermined section where a straight line continues for a predetermined distance or more, as a related element related to the light transmitter / receiver, and performs the warning control.

22. The light transmitter / receiver is used in a speed measuring device. The system according to any one of claims 1 to 21.

23. The control unit recognizes related elements related to the light transmitter / receiver and performs the warning control. The system according to any one of claims 1 to 22.

24. The control unit recognizes a plurality of related elements related to the light transmitter / receiver and performs the warning control. The system according to any one of claims 1 to 23.

25. The control unit recognizes related elements related to the light transmitter / receiver, and performs the different alarm controls according to the types of the recognized related elements The system according to any one of claims 1 to 24.

26. The control unit recognizes related elements related to the light transmitter / receiver, and performs the different alarm controls according to the number of the recognized related elements The system according to any one of claims 1 to 25.

27. The control unit recognizes a person facing from the sidewalk side to the roadway side shown in an image obtained by imaging the front of the vehicle as a related element related to the light transmitter / receiver, and performs the alarm control The system according to any one of claims 1 to 26.

28. The control unit recognizes a person wearing a predetermined type of clothing shown in an image obtained by imaging the front of the vehicle as a related element related to the light transmitter / receiver, and performs the alarm control The system according to any one of claims 1 to 27.

29. The control unit recognizes a person staying near a road cone shown in an image obtained by imaging the front of the vehicle as a related element related to the light transmitter / receiver, and performs the alarm control The system according to any one of claims 1 to 28.

30. The control unit recognizes the head of a person who does not move for a predetermined time in the range of 1 m to 1.2 m in height on the sidewalk from an image obtained by imaging the front of the vehicle as a related element related to the light transmitter / receiver, and performs the alarm control The system according to any one of claims 1 to 29.

31. A program for causing a computer to realize the functions of the system according to any one of claims 1 to 30.

Images