Communication terminal, receiver, program, and the like

Abstract

To provide highly convenient functions for users regarding notification of information about crackdown on speeding.SOLUTION: A communication terminal 20 includes: a communication unit for communicating with an on-vehicle device 30 disposed on a vehicle 40, the on-vehicle device 30 communicating with an external terminal to display information about a function the external terminal has; and a control unit that performs a process of acquiring a signal indicating a reception result of a crackdown wave from a receiver 10 that is disposed in the vehicle 40 and receives the crackdown wave indicating existence of a speed crackdown point, and a process of outputting a notification signal for notifying that the vehicle 40 and the speed crackdown point have a predetermined approach relationship to the on-vehicle device 30 in response to the signal indicating the reception result.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a communication terminal, a receiver, a program, and the like.

Background Art

[0002] Patent Documents 1 and 2 disclose an electronic device that receives microwaves emitted from a vehicle speed enforcement device and outputs an alarm when it detects the presence of the vehicle speed enforcement 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] One of the objects of the present invention is to provide a highly convenient function for the user regarding the notification of information related to speed enforcement.

[0005] The object of the invention of the present application is not limited to this, and the applicant also has the intention of obtaining rights by means of divisional application, amendment, etc. for the configuration that aims to obtain the effects exhibited by the parts of the configuration disclosed in this specification and drawings, etc. For example, the problems obtained by reading the parts described as "~ can be" in this specification as "~ is a problem" are disclosed in this specification. The problems are described as independent ones, and the applicant also has the intention of obtaining rights by means of divisional application, amendment, etc. alone for the configurations for solving each problem. Even if the problems are implicitly grasped from the description of the specification, the applicant has the intention of making part of the configuration described in this specification the scope of claims by amendment or divisional application. In addition, the configurations for solving the problems combined with these independent problems are also disclosed, and the applicant has the intention of obtaining rights.

Means for Solving the Problem

[0006] (1) An in-vehicle device disposed in a vehicle, comprising: a communication unit that communicates with an external in-vehicle device that communicates with an external terminal and displays information regarding functions of the terminal; a process of obtaining a signal indicating a reception result of the control wave from a receiver that is disposed in the vehicle and receives a control wave indicating the presence of a speed enforcement location; and a control unit that executes a process of outputting, to the in-vehicle device, a notification signal for realizing a function of notifying that the vehicle and the speed enforcement location have a predetermined proximity relationship in accordance with the signal indicating the reception result. A communication terminal is provided.

[0007] In this way, a communication terminal exemplified by a smartphone and an in-vehicle device mounted on a vehicle can cooperate to provide a highly convenient function for the user regarding notification of information related to speed enforcement. Since the receiver is separate from the communication terminal and the in-vehicle device, its installation degree of freedom is high, and it is easy to be disposed at a position where it is easy to receive the control wave in the vehicle. The notification that the vehicle and the speed enforcement location have a predetermined proximity relationship is performed by the communication terminal via the in-vehicle device, so that for the user, the problem of being difficult to grasp the information due to the small display screen of the communication terminal can be alleviated. Further, the user does not have to fix the communication terminal to a holder installed on the dashboard and use it as a receiver for the control wave or as a monitor. The possibility of giving an impression to people outside the vehicle that the driver is using the communication terminal during driving, so-called "driving while using", can be reduced.

[0008] (2) The communication unit may be capable of communicating with the in-vehicle device via the receiver, and the control unit may output the notification signal to the in-vehicle device using the communication unit.

[0009] In this way, even when the communication terminal is not directly connected to the in-vehicle device, the notification signal can be output to the in-vehicle device. For example, a communication terminal such as a smartphone may have only one terminal for communicably connecting to an external device. Even in such a case, the communication terminal can transmit and receive data and the like between the receiver and the in-vehicle device respectively.

[0010] (3) The receiver may have a first terminal for wired connection to the communication terminal and a second terminal for wired connection to the in-vehicle device, the communication unit may have a third terminal for wired connection to the first terminal, and the control unit may output the notification signal to the in-vehicle device via the third terminal, the first terminal, and the second terminal.

[0011] In this way, for example, a communication terminal such as a smartphone may have only one terminal for communicably connecting to an external device. Even in such a case, the communication terminal can transmit and receive data and the like via a wired communication path between the receiver and the in-vehicle device respectively.

[0012] (4) The receiver may operate by receiving power supply from the vehicle, and the control unit may operate by receiving the power supply via the receiver.

[0013] In this way, since the communication terminal operates by receiving power supply from the vehicle via the receiver, the possibility of running out of battery and becoming inoperable during the running of the vehicle can be reduced.

[0014] (5) There may be a first receiver and a second receiver as the receiver, and the first receiver and the second receiver may receive different police waves.

[0015] In this way, it becomes easier to place the receiver at a position suitable for receiving each police wave. As a result, the accuracy of the notification according to the reception of the police wave can be improved, which can contribute to the safe driving of the user.

[0016] (6) When the in-vehicle device and the communication unit can communicate with each other, the control unit may output the notification signal based on the position information acquired from the vehicle side and the position information of the speed enforcement point stored in the database in advance.

[0017] In this way, even when the communication terminal does not have a positioning unit, or when it has a positioning unit but its positioning accuracy is not good, or it is arranged at a position where it is difficult to receive signals for positioning, accurate notification according to the position information can be performed. For example, the positioning unit on the vehicle side may have higher positioning accuracy or be arranged at a position where it is easier to receive signals for positioning.

[0018] (7) It is provided with a positioning unit that measures the position of the self-communication terminal and generates position information. The control unit outputs a first notification signal for notifying that the vehicle and the speed enforcement point have a predetermined proximity relationship based on the position information acquired from the vehicle side and the position information of the speed enforcement point, and outputs a second notification signal for notifying that the vehicle and the speed enforcement point have a predetermined proximity relationship based on the position information generated by the positioning unit and the position information of the speed enforcement point.

[0019] In this way, by selectively using the position information generated by the positioning unit of the communication terminal and the position information acquired from the vehicle side, accurate notification according to the position information can be performed. For example, one of the positioning unit of the communication terminal and the positioning unit on the vehicle side with higher positioning accuracy can be used.

[0020] (8) The control unit executes a process of displaying the position of the speed enforcement point that emits the enforcement wave stored in the database in advance on a map. When the communication unit can communicate with the receiver, it may output a notification signal for displaying information indicating that the vehicle and the speed enforcement point have a predetermined proximity relationship together with the map.

[0021] In this way, it is possible to notify when the vehicle and the speed control point have a predetermined proximity relationship regardless of whether they are connected to the receiver. When connected to the receiver, it is also possible to notify when the control wave is actually received, so that the accuracy of the notification can be further improved.

[0022] (9) It may have a voice recognition unit that recognizes the input voice of the user, and when a predetermined keyword is recognized from the voice of the user, the control unit switches to a second state when the state of a predetermined function specified by the keyword is in a first state, and switches to the first state when the state of the function is in the second state.

[0023] In this way, even when the same keyword is recognized from the user's voice, the direction of state switching is changed according to the current state. Therefore, compared to the case where the switching direction also has to be recognized from the user's voice together with the keyword, the control intended by the user can be performed more reliably. Also, since the vehicle cabin may be in a relatively noisy environment, it is advantageous for the keyword to be short. Also, in some cases, a communication terminal such as a smartphone may have a better voice recognition function quality than an in-vehicle device. Therefore, the control intended by the user can be executed more reliably.

[0024] (10) The keyword may indicate a component device used for executing the function or the name of the function.

[0025] In this way, the user only needs to utter the component device used for executing the function or the name of the function. Therefore, compared to the case where the switching direction of the state also has to be recognized from the user's voice together with the component device or the name of the function, the control intended by the user can be performed more reliably.

[0026] (11) The control unit may execute a process of recording the speed of the vehicle when the control wave is received and a process of displaying the recorded speed of the vehicle.

[0027] In this way, the speed when the vehicle approaches the speed limit location can be confirmed. For example, even if the speed when approaching the speed limit location is measured incorrectly, the user can indicate the actual speed of the vehicle.

[0028] (12) The control unit may execute a process of recording the speed of the vehicle during a predetermined period before the vehicle stops, and a process of displaying the recorded speed of the vehicle.

[0029] In this way, when the vehicle is stopped at the speed limit location, the speed of the vehicle of a predetermined mechanism before the stop can be confirmed. For example, even if the speed when approaching the speed limit location is measured incorrectly, the actual speed of the vehicle can be indicated.

[0030] (13) The recording process may be a process of recording vehicle speed pulses.

[0031] In this way, the possibility of falsifying the recorded vehicle speed can be reduced, so that a more reliable vehicle speed can be displayed.

[0032] (14) It is preferable to record the speed of the vehicle calculated based on the change in the position information of the vehicle.

[0033] In this way, for example, even when information for specifying the speed of the vehicle from the vehicle side such as vehicle speed pulses cannot be obtained, the speed of the vehicle calculated based on the change in the position information generated by positioning by the positioning unit can be recorded and displayed.

[0034] (15) The displaying process may display the temporal change of the recorded vehicle speed by animation.

[0035] Doing so can make it easier to visually grasp the temporal change of the recorded vehicle speed.

[0036] (16) The above-described display process may display the temporal change in the speed of the vehicle by means of an animation using a meter.

[0037] In this way, since the temporal change in the speed of the vehicle is displayed by a display imitating a digital tachometer, the change can be easily grasped visually.

[0038] (17) A receiver is provided, which includes a receiving unit that is provided in a vehicle and receives a control wave for measuring the speed of the vehicle, a first terminal for wired connection to an external communication terminal, and a second terminal for wired connection to an in-vehicle device that communicates with the communication terminal and displays information regarding functions of the communication terminal. The receiver has a control unit that executes a process of outputting, via the first terminal, a signal indicating a reception result of the control wave in the receiver to the communication terminal, and a process of, when receiving, via the first terminal, a notification signal for notification according to the reception result from the communication terminal, outputting the notification signal to the in-vehicle device via the second terminal.

[0039] In this way, a communication terminal exemplified by a smartphone and an in-vehicle device mounted on a vehicle can cooperate to provide a highly convenient function for the user regarding notification of information related to speed control. Since the receiver is separate from the communication terminal and the in-vehicle device, its installation has a high degree of freedom and it is easy to arrange at a position where it is easy to receive the control wave in the vehicle. Notification of the fact that the vehicle and the speed control point have a predetermined proximity relationship is performed by the communication terminal via the in-vehicle device, so that for the user, the problem of difficulty in grasping such information due to the small display screen of the communication terminal can be alleviated. Further, the user does not have to fix the communication terminal to a holder installed on the dashboard and use it as a receiver for the control wave or as a monitor. The possibility of giving an impression to people outside the vehicle that the driver is using the communication terminal during driving, i.e., so-called "driving while using", can be reduced.

[0040] (18) A third terminal that receives power supply from the vehicle, and a power management unit that converts the power input to the third terminal into an operating voltage for the communication terminal and outputs the converted power to the communication terminal via the first terminal. The control unit may operate using the power input via the third terminal.

[0041] In this way, since the communication terminal operates by receiving power supply from the vehicle via the receiver, it is possible to reduce the possibility that the communication terminal runs out of battery and becomes inoperable during the running of the vehicle.

[0042] (19) A program is provided for causing a computer to realize the functions of the control unit of any of the above systems.

[0043] The inventions described in (1) to (19) above can be arbitrarily combined. For example, it is preferable to adopt a configuration in which at least a part of the configuration of at least one of the inventions described in (2) and subsequent items is added to all or a part of the configuration of the invention described in (1). In particular, it is preferable to adopt an invention in which at least a part of the configuration of at least one of the inventions described in (2) and subsequent items is added to the invention described in (1). Also, any configuration may be extracted from the inventions described in (1) to (19), 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 order are not limited to this order. The applicant also discloses configurations in which some parts are deleted or the order is changed, and intends to obtain rights for such configurations.

Advantages of the Invention

[0044] According to the present invention, it is possible to provide a technology related to notification of information regarding speed control.

[0045] The effects of the invention of the present application are not limited to this, and the effects achieved by the components of the configurations disclosed in this specification, drawings, etc. are also disclosed, and there is also an intention to obtain rights for the configurations achieving such effects by means of divisional applications, amendments, etc. For example, the parts described as "can" in this specification are descriptions that clearly indicate the achieved effects, and even if there is no description of "can", there are parts indicating the effects. Further, even without such descriptions, there are effects grasped by the said configurations.

Brief Description of the Drawings

[0046]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Modes for Carrying Out the Invention

[0047] Hereinafter, 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 functions are given the same reference numerals or similar reference numerals (reference numerals with only A, B, etc. added after the numbers), and the repeated description thereof may be omitted. In addition, in each drawing referred to in the following description, the scale may be different from the actual scale in order to make each member, each region, etc. recognizable. Hereinafter, a case where the system of the present disclosure is applied to a system mounted on a vehicle and detecting a speed enforcement device will be described. The vehicle may be an automobile, but is not limited to a four-wheeled automobile, and may be, for example, a two-wheeled vehicle such as a motorcycle or a large transport vehicle with four or more wheels.

[0048] [1. First Embodiment] <1-1. Configuration> FIG. 1 is a diagram showing the overall configuration of the system 1 according to the first embodiment. FIG. 1 shows a view of the periphery of the dashboard 41 on the front side from the position of the rear seat in the passenger compartment of the vehicle 40. The system 1 includes a receiver 10, a communication terminal 20, and an in-vehicle device 30. The receiver 10 and the communication terminal 20 are connected using a cable 50. The receiver 10 and the in-vehicle device 30 are connected using a cable 60. The cable 50 and the cable 60 each function as a wired communication path. The cable 50 and the cable 60 may have a power supply line for supplying power in addition to a signal line for transmitting various signals. The in-vehicle device 30 can communicate with an external terminal via a cable connected to a terminal 43 mounted on the vehicle 40. The terminal 43 conforms to, for example, the USB (Universal Serial Bus) standard.

[0049] The receiver 10 is a receiver disposed in the vehicle 40. The receiver 10 is also called an antenna unit. In this embodiment, the receiver 10 is disposed on the dashboard 41. The receiver 10 has, for example, a rectangular parallelepiped shape, but the external shape is not limited. The receiver 10 receives the enforcement wave emitted from the speed measuring device 90. The enforcement wave is an electromagnetic wave indicating the presence of a speed enforcement point, which is a point where vehicle speed enforcement is carried out. The receiver 10 receives, for example, the enforcement wave that has passed through the windshield 42. The speed measuring device 90 is installed at the speed enforcement point and emits an enforcement wave. There are various types of speed measuring devices 90, for example, a radar type and a laser type. The radar type speed measuring device 90 transmits a radar wave as the enforcement wave. The laser type speed measuring device 90 transmits a laser beam as the enforcement wave. The laser beam and the radar wave can also be referred to as measurement waves for measuring the vehicle speed. The speed enforcement point is determined in consideration of situations such as the driving conditions of the vehicle (for example, the vehicle is likely to gain speed) and the occurrence conditions of traffic accidents (for example, a location with a high number of accidents). As an example of the speed enforcement point, among the routes on which the vehicle travels, there is a curve or a point ahead of the curve.

[0050] The communication terminal 20 is a communication terminal carried by the user. In this embodiment, the communication terminal 20 is not a dedicated device manufactured as a so-called radar / laser detector, but a general-purpose communication terminal. The communication terminal 20 is, for example, a smartphone, but may also be a tablet computer, a wearable computer, or the like. The communication terminal 20 realizes an alarm function in cooperation with the receiver 10 and the in-vehicle device 30. The alarm function is a function of notifying information regarding the speed enforcement point of the vehicle. When the receiver 10 receives the enforcement wave, the communication terminal 20 outputs to the in-vehicle device 30 a notification signal, which is a signal for issuing an alarm via the in-vehicle device 30. The alarm function is a function realized by an application program (application 281 described later) operating on an operating system (for example, iOS (registered trademark) or Android (registered trademark)) installed in the communication terminal 20.

[0051] The in-vehicle device 30 is a device mounted on the vehicle 40. The in-vehicle device 30 is a device pre-mounted before the shipping stage of the vehicle 40, but it may also be a device retrofitted by the user. The in-vehicle device 30 communicates (i.e., is associated) with the communication terminal 20 to notify information regarding the functions (e.g., the warning function) that the communication terminal 20 has. The functions realized by the in-vehicle device 30 in association with the communication terminal 20 are realized by Apple Carplay (registered trademark), Android Auto (registered trademark), or functions similar thereto, but are not limited thereto.

[0052] The in-vehicle device 30 includes a display unit 31 and an operation unit 32. The display unit 31 displays an image. The display unit 31 is, for example, a liquid crystal display. The operation unit 32 receives the user's operations. The operation unit 32 has, for example, a plurality of physical buttons, but may also have a touch sensor disposed overlapping the display unit 31 or other operation means. The in-vehicle device 30 may display information regarding a warning on the display unit 31 or output a voice regarding the warning from a speaker (not shown) in response to a notification signal from the communication terminal 20. The in-vehicle device 30 outputs an operation signal indicating the operation received by the operation unit 32 to the communication terminal 20.

[0053] In addition, the in-vehicle device 30 may function as a navigation device that displays a map and displays the position of the vehicle 40 on the map or provides route guidance. The navigation function of the in-vehicle device 30 can be realized without being associated with the communication terminal 20.

[0054] The in-vehicle device 30 or the vehicle 40 has a positioning unit that measures the current position of the vehicle 40 and generates position information indicating the measured position. The positioning unit uses, for example, GPS (Global Positioning System), GLONASS (Global Navigation Satellite System), Galileo, Quasi-Zenith Satellite System (QZSS), etc., which are part of the Global Navigation Satellite System (GNSS), to receive positioning signals and generate position information based on the received positioning signals. The position information may be specified by, for example, latitude information and longitude information. In the following description, the position information generated by the in-vehicle device 30 or the vehicle 40 may be referred to as "position information on the vehicle 40 side".

[0055] Figure 2 is a diagram showing an overview of the functions of the system 1. The receiver 10 is connected to the accessory power supply of the vehicle 40. The receiver 10 operates by receiving a supply of 12V DC power. The receiver 10 outputs data indicating the reception result of the interrogation wave (hereinafter referred to as "reception result data") to the communication terminal 20 via the cable 50. The receiver 10 converts the 12V DC voltage to a 5V DC voltage and outputs operating power to the communication terminal 20. The communication terminal 20 outputs a notification signal regarding the alarm function to the in-vehicle device 30 via the cable 60 based on the reception result data. The communication terminal 20 operates by receiving power supply from an internal battery (not shown) and power supply of 5V DC from the receiver 10. The in-vehicle device 30 displays information based on the data from the communication terminal 20. For example, this data includes a notification signal for issuing an alarm. Also, the in-vehicle device 30 outputs signals such as an operation signal indicating an operation performed on the operation unit 32 and position information to the communication terminal 20 via the cable 60.

[0056] FIG. 3 is a block diagram showing the electrical configuration of the receiver 10. The control unit 11 controls each part of the receiver 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 memories. The arithmetic processing circuit performs various controls by temporarily reading data from the memory and performing arithmetic processing. This data includes the program executed by the control unit 11.

[0057] The light receiving unit 12 is an example of a receiving unit that receives laser light from the speed measuring device 90 corresponding to the laser method. The laser light is a pulse laser having a predetermined pulse width. The laser light belongs to, for example, the infrared light region and is, for example, any of 850 nm, 905 nm, 950 nm, and 1900 nm. The pulse width is, for example, approximately 20 ns or approximately 15 ns. The pulse interval is, for example, approximately 80 ms. "Approximately" may be within a predetermined range that can be regarded as the same as or substantially the same as the reference value. The light receiving unit 12 receives the light incident through the window provided on the traveling direction side of the vehicle of the receiver 10 and outputs a signal corresponding to the received light to the control unit 11. The window may be provided with optical members such as a visible light cut filter and a lens. The signal output by the light receiving unit 12 changes, for example, according to the amount of light received by the light receiving unit 12. The light receiving unit 12 includes, for example, a photodiode as a light receiving element, but may be a phototransistor or other light receiving elements. The light receiving unit 12 has sensitivity at least in the infrared light region. The light receiving unit 12 may have an A / D conversion circuit or the like that converts an analog signal from the light receiving element into a digital signal.

[0058] The radar receiving unit 13 receives a radar wave as an interrogation wave from a speed measuring device 90 corresponding to the radar method. Examples of the radar wave include a predetermined microwave, a stealth wave in which a predetermined stealth detector emits radio waves only at the moment of measurement, 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 receiving unit 13 has, for example, an antenna and a receiving circuit.

[0059] The wireless receiving unit 14 receives a wireless signal of a predetermined frequency. This wireless signal is also an example of an interrogation wave indicating the presence of a speed enforcement location. Examples of this wireless signal include wireless signals belonging to frequencies such as traffic control radio, car stereo radio, digital radio, very low power radio, jurisdiction radio, police telephone, police activity radio, radar beacon radio, helicopter radio, fire helicopter radio, fire radio, emergency radio, highway radio, and police radio. The wireless receiving unit 14 has, for example, an antenna and a receiving circuit.

[0060] The first terminal 15 is connected to the cable 50. The first terminal 15 is connected to the communication terminal 20 via the cable 50. The second terminal 16 is connected to the cable 60. The second terminal 16 is connected to the in-vehicle device 30 via the cable 60. The first terminal 15 and the second terminal 16 may correspond to, for example, the unique standard of the manufacturer of the communication terminal 20 or a general standard such as USB, and may have pins for inputting and outputting data and pins for transmitting power. The first terminal 15 is an example of a communication unit that communicates with the communication terminal 20, and the second terminal 16 is an example of a communication unit that communicates with the in-vehicle device 30. The third terminal 17 has a terminal to which a cable for connecting to the accessory power supply of the vehicle 40 is connected. The power management unit 18 has a DC-DC converter that converts the power input from the third terminal 17 from DC12V to DC5V. The control unit 11 supplies power to each part of the receiver 10 based on the power input from the third terminal 17 to the power management unit 18. In addition, the control unit 11 realizes a power control function of outputting the power after the voltage conversion by the power management unit 18 to the communication terminal 20 via the first terminal 15.

[0061] FIG. 4 is a block diagram showing the electrical configuration of the communication terminal 20. The control unit 21 controls each part of the communication terminal 20. The control unit 21 is a computer including, for example, an arithmetic processing circuit and a memory. The arithmetic processing circuit includes, for example, a CPU, an ASIC, an FPGA, or other arithmetic processing circuits. The memory includes, for example, a RAM or other volatile memory. The arithmetic processing circuit performs various controls by temporarily reading data from the memory and performing arithmetic processing. This data includes a program. The control unit 21 supplies power to each part of the communication terminal 20 based on the power input from the terminal 27. In this way, since the communication terminal 20 operates by receiving power supply from the vehicle via the receiver 10, the possibility of running out of battery and becoming inoperable during the vehicle's travel can be reduced. Further, the control unit 21 has a voice recognition function. The voice recognition function recognizes the user's voice input to the microphone 25. The voice recognition function is a process of converting the user's voice into a character string (text code). When the control unit 21 recognizes a voice instruction from the user by the voice recognition function, it executes control according to the voice instruction.

[0062] The display unit 22 displays an image in the display area. The display unit 22 includes, for example, a liquid crystal display. The operation unit 23 receives an operation performed by the user. The operation unit 23 includes, for example, a touch sensor provided overlaid on the display area and physical buttons. The wireless communication unit 24 connects to a mobile communication network or a public communication network and performs wireless communication. The wireless communication unit 24 includes, for example, a wireless communication circuit and an antenna. The wireless communication unit 24 may perform wireless communication in, for example, Wi-Fi (registered trademark), Bluetooth (registered trademark), or other systems. The microphone 25 converts the voice input by the user into a voice signal and supplies it to the control unit 21. The speaker 26 converts the voice signal supplied from the control unit 21 into voice and outputs it.

[0063] The terminal 27 is an example of a third terminal to which the cable 50 is connected. The terminal 27 is connected to the receiver 10 via the cable 50. The terminal 27 is an example of a communication unit that communicates with the receiver 10 or the in-vehicle device 30.

[0064] The storage unit 28 stores data. The storage unit 28 stores, for example, an application 281 for the control unit 21 to perform various controls. The control unit 21 reads the application 281 from the storage unit 28 into the memory and executes it. The storage unit 28 stores a database 282 that accumulates position information of the warning target. The position information accumulated in the database 282 is downloaded by the control unit 21 from a predetermined server device based on the function of the application 281. The warning target includes a speed control point. More specifically, the warning target is, for example, a speed measuring device 90 (such as a laser type, a radar type, a loop coil type, an H system, an LH system, a photoelectric tube type, a mobile type, etc.). In addition to this, the warning target also includes a drowsy driving accident location, a speed limit switching point, a regulated area, an interrogation area, a no-parking monitoring area, an N system, a traffic monitoring system, an intersection monitoring point, a signal violation suppression system, a police station, an accident-prone area, a vehicle-targeted crime-prone area, a sharp / continuous curve (highway), a branch / merge point (highway), an ETC lane pre-guidance (highway), a service area (highway), a parking area (highway), a highway oasis (highway), a smart interchange (highway), a gas station inside a PA / SA (highway), a tunnel (highway), a highway radio reception area (highway), a prefectural boundary notification, a road station (registered trademark), a viewpoint parking, etc. The database 282 may store the type information of these warning targets, the position information indicating their positions, the data of an image (such as a schematic diagram or a photograph) to be displayed on the display unit 22, and the audio data in association with each other.

[0065] Note that the storage unit 28 may include a storage medium that permanently stores data. The storage unit 28 may include, for example, an optical recording medium, a magnetic recording medium, a semiconductor recording medium, or other recording media. The data stored in the storage unit 28 may be appropriately stored in cloud computing or other external storage means.

[0066] The positioning unit 29 measures the current position of the communication terminal 20 and generates position information indicating the position of the communication terminal 20. For example, the positioning unit 29 uses the GPS, GLONASS, Galileo, Quasi-Zenith Satellite System (QZSS), etc., which are part of the Global Navigation Satellite System (GNSS), to receive positioning signals and generate position information based on the received positioning signals. The position information may be specified by, for example, latitude information and longitude information.

[0067] FIG. 5 is a diagram showing an example of a screen displayed on the display unit 31 of the in-vehicle device 30 when the application 281 is executed. When the communication terminal 20 and the in-vehicle device 30 are linked, a standby screen G including an icon I0 corresponding to the application 281 is displayed. For example, when the icon I is selected by operating the operation unit 32 of the in-vehicle device 30 or the operation unit 23 of the communication terminal 20, the control unit 21 activates the application 281 and performs various controls related to the warning function described below. The warning function is broadly classified into a first warning function and a second warning function.

[0068] <1-2. Operation> <1-2-1. First Warning Function> The operation of this embodiment will be described. FIG. 6 is a flowchart showing the operations of the communication terminal 20 and the in-vehicle device 30. First, due to a user operation or the connection between the communication terminal 20 and the in-vehicle device 30, the linkage between the warning function of the communication terminal 20 and the function of the in-vehicle device 30 is started (step S1).

[0069] Next, the operation of the communication terminal 20 will be described. When the linkage in step S1 is started, the control unit 21 acquires reception result data from the receiver 10 via the terminal 27 (step S2). Next, the control unit 21 determines whether or not an interference wave has been received by the receiver 10 based on the acquired reception result data (step S3). The reception result data is preferably a signal capable of specifying at least the presence or absence of reception of the interference wave, and more preferably a signal capable of specifying at least one of the type (method) of the speed measuring device 90 and the intensity of the interference wave. Hereinafter, the case where the presence or absence of reception of the interference wave, the type (method) of the speed measuring device 90, and the intensity of the interference wave can be specified will be described.

[0070] When it is determined "NO" in step S3, the control unit 21 returns to the process of step S2. When it is determined "YES" in step S3, the control unit 21 outputs a notification signal for warning the approach to the speed limit location to the in-vehicle device 30 via the terminal 27 (step S4). The notification signal is preferably a signal for enabling the user to recognize the existence of the speed limit location by a method of notifying the information of the in-vehicle device 30, and for example, at least includes a signal for controlling the display on the display unit 31 of the warning screen. The control unit 21 may output the notification signal so that the content of the warning varies depending on the type of the speed limit location and the frequency of the radio signal.

[0071] Next, the control unit 21 determines whether to end the process of FIG. 6 (step S5). The timing of ending the process is not particularly limited, but for example, it may be triggered by a user operation or the disconnection of the connection between the communication terminal 20 and the in-vehicle device 30. When it is determined "NO" in step S5, the control unit 21 returns to the process of step S2 and repeats the above process. Since the control unit 21 determines "NO" in step S3 when the detection wave is no longer received, the output of the notification signal is stopped. When it is determined "YES" in step S5, the control unit 21 ends the process of FIG. 6.

[0072] Next, the operation of the in-vehicle device 30 will be described. When the linkage of step S1 is started, the in-vehicle device 30 determines whether it has acquired a notification signal from the communication terminal 20 (step S11). When it is determined "NO" in step S11, the in-vehicle device 30 returns to the process of step S11. When it is determined "YES" in step S11, the in-vehicle device 30 performs warning control for warning the approach to the speed limit location based on the notification signal (step S12). The warning control may be performed by a method that enables the user to recognize the existence of the speed limit location according to the notification signal, and preferably includes at least control for displaying a warning screen on the display unit 31. The warning may be controlled not only by display but also by light, sound (warning sound) or a combination thereof, or other methods perceptible to humans.

[0073] FIG. 7 is a diagram showing an example of an alarm screen. The alarm screen shown in FIG. 7 is a screen in which a window W1 is superimposed on a map screen M1. The in-vehicle device 30 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 generated by the positioning unit 29 or the position information on the vehicle 40 side. An icon I indicating the position of the vehicle 40 (own vehicle position) is arranged on the map M. The own vehicle position is specified based on the position information from the positioning unit of the in-vehicle device 30. The map M may be displayed based on a notification signal, but if the map data used for navigation or the like mounted on the in-vehicle device 30 is used, the transmission amount of the notification signal is reduced, and for example, it becomes easier to issue an alarm at an appropriate timing. Note that the icon in the present embodiment may be replaced with characters, symbols, figures, or other objects.

[0074] In the example shown in FIG. 7(A), a message indicating the existence of a speed limit location, "This is a speed limit location", is displayed in the window W1. Further, the in-vehicle device 30 may output a voice of "This is a speed limit location" from a speaker (not shown). When the in-vehicle device 30 can determine the type of the speed limit location (for example, laser method, radar method, fixed type, mobile type), it is preferable to perform control to issue an alarm including notification of the type of the speed limit device. The control unit 11 may notify, for example, by a message "This is a radar-type speed limit location" displayed in the window W2 as shown in FIG. 7(B).

[0075] <1-2-2. Second alarm function> FIG. 8 is a flowchart showing the operations of the communication terminal 20 and the in-vehicle device 30. The communication terminal 20 and the in-vehicle device 30 execute the processes described below while linked in step S1. The trigger for starting the operation of the receiver 10 may be the same as that in <1-2-1. First alarm function>.

[0076] In communication terminal 20, control unit 21 acquires position information (step S21). Here, control unit 21 acquires the position information on the vehicle 40 side generated by in-vehicle device 30 or vehicle 40 via terminal 27. By doing so, even when communication terminal 20 is not placed near the windshield of vehicle 40, the reception sensitivity of the position information is poor, or the positioning accuracy of positioning unit 29 is inferior to that of in-vehicle device 30 or vehicle 40, accurate position information can be obtained.

[0077] Next, control unit 21 compares the position information stored in database 282 with the position information acquired in step S21 (step S22). Next, control unit 21 determines whether vehicle 40 and the speed enforcement point are in a predetermined proximity relationship based on the position information acquired in step S21 and any of the position information stored in database 282 (step S23). The predetermined proximity relationship may be, for example, that the distance between the position information of the speed enforcement point and the position information of vehicle 40 is equal to or less than a predetermined distance (for example, 1 km or less). In addition to this, the predetermined proximity relationship may be determined based on positional relationships such as that the speed enforcement point is in the traveling direction of the vehicle or that the speed enforcement point is on the road on which the vehicle is traveling.

[0078] If it is determined "YES" in step S23, control unit 21 outputs a notification signal for warning of approaching the speed enforcement point to in-vehicle device 30 via terminal 27 (step S24). The notification signal may be the same as the notification signal transmitted in step S4, or may have different alarm control contents.

[0079] Next, the control unit 21 determines whether to end the process of FIG. 8 (step S25). The trigger for ending the process is not particularly limited. For example, it may be triggered by a user operation or the disconnection of the connection between the communication terminal 20 and the in-vehicle device 30. If it is determined as "NO" in step S25, the control unit 21 returns to the process of step S21 and repeats the above process. When the control unit 21 determines as "NO" in step S23 and no longer determines that there is a predetermined proximity relationship with the speed enforcement point, the output of the notification signal is stopped. If it is determined as "YES" in step S25, the control unit 21 ends the process of FIG. 8.

[0080] Next, the operation of the in-vehicle device 30 will be described. The in-vehicle device 30 transmits position information indicating the position measured by the positioning unit on the vehicle 40 side to the communication terminal 20 (step S31). Next, the in-vehicle device 30 determines whether it has acquired a notification signal from the communication terminal 20 (step S32). If it is determined as "NO" in step S32, the in-vehicle device 30 returns to the process of step S31. If it is determined as "YES" in step S32, the in-vehicle device 30 performs alarm control (step S33). The alarm control may include the display of an alarm screen. The alarm control may be the same as the alarm control in step S12, or the content of the alarm control may be different.

[0081] FIG. 9 is a diagram showing an example of an alarm screen. The alarm screen shown in FIG. 9 is a screen in which a window W3 is superimposed on a map M. A message "This is a registered speed enforcement point" is displayed in the window W3. Also, the in-vehicle device 30 may output a voice message "This is a registered speed enforcement point" from the speaker. In this way, based on the position of the vehicle 40, the presence of the speed enforcement point can be notified, so that even if the receiver 10 does not receive the enforcement wave, its presence can be notified.

[0082] In this way, by using the linked functions exemplified in Apple CarPlay, the receiver 10, the communication terminal 20, and the in-vehicle device 30 are linked to provide a highly convenient warning function for the user and contribute to the user's safe driving. The receiver 10 does not need to have a display unit exemplified by a liquid crystal display or an operation unit exemplified by a touch sensor like a conventional radar detector, so the cost can be reduced and the effect of miniaturization can be expected.

[0083] Also, since the communication terminal 20 can acquire position information from the in-vehicle device 30 or the vehicle 40 on the in-vehicle side, even if the communication terminal 20 does not have a positioning unit 29, or even if it has a positioning unit but the positioning accuracy is not good, or it is placed in a position where it is difficult to receive signals for positioning, it is possible to accurately perform notification according to the position information. Furthermore, the communication terminal 20 has a database 282 and can update the information in the database 282 through the communication of the wireless communication unit 24. Therefore, the receiver 10 does not need to have a communication function or an SD card slot for acquiring updated data of speed limit locations. Furthermore, the receiver 10 does not require a speaker for outputting sounds such as alarm sounds, and the operating power is supplied by turning on / off the accessory power of the vehicle 40, so switch components are also unnecessary. Therefore, in the receiver 10, there is an advantage that the cost is reduced and there are no holes (the holes in the receiver 10 are only power holes, for example). Therefore, the waterproof design of the receiver 10 becomes simple, and it becomes easy to use, for example, as a receiver for a motorcycle. For example, it is highly likely that this can be developed by performing processing such as adding or not adding a waterproof packing to a conventional radar detector.

[0084] FIG. 10 shows an example of another external configuration of the receiver 10 designed as described above. FIG. 10(A) is a view of the receiver 10 seen from the front side, and FIG. 10(B) is a view of the receiver 10 seen from the back side. The receiver 10 is installed on the dashboard, for example, using double-sided tape. The housing of the receiver 10 is formed of resin or other materials. The receiver 10 is roughly divided into a main body part 101 and a fixing part 102. The main body part 101 has a rectangular parallelepiped shape that is longer in the left-right direction than in the up-down direction and has a relatively short thickness. Different from the monitor-type radar detector of the conventional configuration, a display part such as a liquid crystal display and a touch sensor are not provided on the front side, and the opening on the front side of the main body part 101 is unnecessary. On the back side of the main body part 101, a condenser lens 121 of a light receiving part 12 for receiving the laser light from the speed measuring device 90 is provided. The power supply hole 1011 is also provided on the back side of the main body part 101. Inside the main body part 101, various other configurations described in FIG. 2 may also be incorporated. The fixing part 102 is provided under the main body part 101 and is a fixing member for fixing the main body part 101 to a predetermined location. The fixing part 102 is also called a bracket and functions as a pedestal for the receiver 10. The main body part 101 can change its posture vertically and horizontally while being attached to the fixing part 102.

[0085] According to the embodiments described above, the communication terminal 20 exemplified by a smartphone and the in-vehicle device 30 mounted on the vehicle 40 are associated with each other, and it is possible to provide a highly convenient function for the user regarding the notification of information related to speed enforcement. Since the receiver 10 is separate from the communication terminal 20 and the in-vehicle device 30, the degree of freedom in its installation is high, and it is easy to be arranged at a position where it is easy to receive the enforcement wave in the vehicle 40. The notification that the vehicle 40 and the speed enforcement point have a predetermined proximity relationship is performed by the communication terminal 20 via the in-vehicle device 30. Therefore, for the user, the problem that it is difficult to grasp the information due to the small display screen of the communication terminal 20 can be alleviated. Further, the user does not have to fix the communication terminal 20 to the holder installed on the dashboard 41 and use it as a receiver for the enforcement wave or as a monitor. It is possible to reduce the possibility of giving an impression to people outside the vehicle 40 that the driver is using the communication terminal 20 during driving, so-called "driving while using".

[0086] <1-3. Variation of the First Embodiment> The present disclosure is not limited to the above-described embodiments, and can be appropriately changed without departing from the gist.

[0087] <1-3-1. Association Function with Other Applications> In the first embodiment described above, with the receiver 10 as a hub, the communication terminal 20 and the in-vehicle device 30 were electrically connected via the receiver 10. Instead of this, the communication terminal 20 may be directly connected to each of the receiver 10 and the in-vehicle device 30. For example, the communication terminal 20 exemplified by a smartphone may have only one terminal for communicably connecting to an external device. Therefore, the communication terminal 20 may be connected to the receiver 10 by wireless communication of the wireless communication unit 24. In this case, the control unit 21 acquires the reception result data from the receiver 10 using the wireless communication unit 24. The control unit 21 may communicate with the in-vehicle device 30 via the terminal 27 without sandwiching the receiver 10. Further, the communication terminal 20 may communicate with the in-vehicle device 30 using wireless communication exemplified by Wi-Fi.

[0088] <1-3-2. Alarm control function> The control unit 21 of the communication terminal 20 may further have an alarm control function. The alarm control function is a function for controlling which of the first alarm function and the second alarm function is to be operated. For example, when the receiver 10 and the communication terminal 20 are not connected, the alarm control function may execute the second alarm function without executing the first alarm function. When the receiver 10 and the communication terminal 20 are connected, the alarm control function may execute the first alarm function and the second alarm function. Also, the alarm control function may be set to execute either one or both according to user settings or the like. The first alarm function may be realized by the application 281, and the second alarm function may be realized by an application installed in the communication terminal 20 (for example, an application having a navigation function, such as a map application). In this case, the application and the application 281 cooperate to realize the first alarm function and the second alarm function. The second alarm function may be realized by the navigation function mounted on the in-vehicle device 30.

[0089] <1-3-3. Positioning unit switching function> The control unit 21 of the communication terminal 20 may have a function (positioning unit switching function) that can set (switch) which of the positioning unit 29 and the positioning unit on the vehicle 40 side to use based on the application 281. For example, the control unit 21 sets to either one according to the user's operation using the operation unit 23 or the operation unit 32. When the control unit 21 uses the position information acquired from the vehicle 40 side, based on the position information and the position information of the speed enforcement point, it outputs a first notification signal for notifying that the vehicle 40 and the speed enforcement point have a predetermined proximity relationship. When the control unit 21 uses the position information acquired from the positioning unit 29, based on the position information and the position information of the speed enforcement point, it outputs a second notification signal for notifying that the vehicle 40 and the speed enforcement point have a predetermined proximity relationship. By doing so, it is possible to selectively use the position information generated by the positioning unit 29 of the communication terminal 20 and the position information acquired from the vehicle 40 side, and accurately perform notification according to the position information. For example, it is also possible to use the one with higher positioning accuracy among the positioning unit 29 of the communication terminal 20 and the positioning unit on the vehicle 40 side.

[0090] <1-3-4. Linkage function with other applications> The control unit 21 of the communication terminal 20 may have a linkage function for further linking the application 281 with other applications. The application 281 may be further linked with another application, for example, it may be linked with an application that provides an SNS (Social Networking Service) function. In this case, when the communication terminal 20 receives a speed enforcement wave by the receiver 10 or determines that the vehicle 40 has a predetermined proximity relationship with the speed enforcement point, it may transmit (upload) posting information for posting to a predetermined SNS to the SNS server. This may be either manual or automatic. Since an application that provides an SNS function is often installed in the communication terminal 20, the trouble of posting forced on the user is small.

[0091] <1-3-5. Voice recognition function> Regarding the voice recognition function, for example, if it can be operated on CarPlay using Siri (registered trademark), it is safe for the user to operate the vehicle 40 while it is in motion. Furthermore, there is an advantage that manual operation of the communication terminal 20 itself is not required and it does not seem that the user is fiddling with the smartphone while driving. In this voice recognition function, the communication terminal 20 further performs a process of switching the state of a predetermined function specified by the keyword when a predetermined keyword is recognized as a voice instruction. When performing this switching, the communication terminal 20 may switch to the second state when the current state is the first state and switch to the first state when the current state is the second state. For example, even if the keyword recognized as a voice instruction is the same, the control unit 21 may switch to a state different from the current state, for example, the opposite state, regarding the state switching.

[0092] Keywords may indicate, for example, the names of component devices or functions used for executing functions controlled by voice instructions. For example, consider the case of controlling a "monitor" (e.g., the display unit 31) as a component device. Usually, there are voice instructions (voice commands) such as "monitor on" and "monitor off", but in this embodiment, the control unit 21 recognizes the keyword "monitor" and, if the current state is "on", turns it "off", and if the current state is "off", turns it "on". For example, consider the case of controlling the "recording function" as the name of a function. Usually, there are voice instructions such as "recording start" and "recording end", but in this embodiment, the control unit 21 recognizes the keyword "recording" and, if the current state is "recording on" (recording), turns it "recording off" (recording stop), and if the current state is "recording off" (recording stop), turns it "recording on" (recording start). At this time, it is easy for the user to understand what control the control unit 21 will execute when it recognizes it by outputting, for example, via the in-vehicle device 30. The control unit 21 may output voices such as "turn on the monitor", "turn off the monitor", "recording ends", and "recording starts". In this way, the control unit 21 narrows down the voices (voice instructions) that the user should input in advance and returns the control to be executed from a speaker such as the in-vehicle device 30, so that the completion of the voice instruction can be understood.

[0093] The above relationship between the voice instructions and the control is an example. For example, when the system 1 is further associated with a drive recorder, the control unit 21 recognizes a keyword indicating the name of the function "recording" and, if the current state is "recording on" (recording), turns it "recording off" (recording stop), and if the current state is "recording off" (recording stop), turns it "recording on" (recording start).

[0094] In this way, in the voice recognition function, by eliminating selections such as ON / OFF of the function and making it a command only for the functional aspect (the names of the component devices and functions described above), and enabling sequential selection of settings opposite to the current settings, shorter voice instructions are easier to recognize. When there are a large number of them, users may forget, and when the command is long, the articulation may deteriorate, making voice recognition difficult at times. However, with short commands, the recognition rate without problems is higher. Also, since various voice instructions can be given using the voice recognition function of the communication terminal 20, the operations during driving by the driver are safe. For example, since the communication terminal 20 may have a high-quality voice recognition function, an improvement in the accuracy of control in response to voice instructions can also be expected compared to conventional in-vehicle devices.

[0095] <1-3-6. Configuration of Receiver> In the first embodiment described above, the system 1 had only one receiver 10, but it may have two or more. For example, there may be a first receiver and a second receiver as receivers, and the first receiver and the second receiver may receive different regulatory waves. For example, as regulatory waves, two or more receivers that receive radar waves, laser light, radio signals, and positioning signals respectively may be realized in separate, independent housings. By doing so, it becomes easier to place the receivers at positions suitable for receiving each regulatory wave. As a result, the accuracy of notification in response to the reception of regulatory waves can be improved, which can contribute to the safe driving of the user. Also, an acceleration sensor and other sensors may be mounted on the receiver. Also, the receiver is not limited to being arranged on the upper surface of a dashboard or a pedestal, and may be attached to a predetermined part of the vehicle 40 such as the front glass.

[0096] <1-3-7. Association with Devices Other than Receiver 10> In System 1, instead of or in addition to Receiver 10, it is also conceivable to associate with devices other than Receiver 10. As such devices, various in-vehicle devices can be considered, for example, a drive recorder. A drive recorder has a function of taking pictures, a function of recording the taken pictures, and may further have a function of displaying the recorded pictures. In the case of a drive recorder, usually, since the main body is far from the user, such as being attached to the upper part of the windshield, many people may not touch it after installation. Therefore, by enabling the operation of the drive recorder to be performed by operating the operation unit 32 of the in-vehicle device 30, it becomes easier for the user to operate the drive recorder. In addition, it is expected to provide a new function not available in conventional drive recorders and promote their use. For example, the control unit 21 may display the video being driven on the display unit 31 of the in-vehicle device 30 and output the sound with the music that the user or the person in the passenger seat likes stored in the communication terminal 20.

[0097] [2. Second Embodiment] As an embodiment that provides a highly convenient function for the user regarding the notification of information related to speed enforcement, there is the following embodiment.

[0098] First, the background of the idea of this embodiment will be described. In the measurement of the vehicle speed using the speed measurement device 90 described above, there is a possibility that an incorrect speed may be measured. Therefore, in order to protect the driver, if there is a function that records the reception and alarm history in the radar / laser detector when receiving radar waves, laser light, K-band radio waves, or other enforcement waves used during speed violation enforcement and can be confirmed by the user, it is considered that the occurrence of problems can be suppressed. For example, since the user can confirm the situation such as the speed and position information of the vehicle 40 during alarm control by himself / herself, it is effective as a self-defense function. On the other hand, a device called a digital tachometer is generally expensive and may be difficult for the user to introduce.

[0099] Based on the above considerations, the control unit 21 of the communication terminal 20 may be configured to have a history display function instead of or in addition to the functions described in the above-described embodiments. The history display function has a function of recording the speed of the vehicle by any of the following methods and a function of displaying the recorded speed of the vehicle.

[0100] <2-1. Recording Method of History Display Function·Part 1> The history display function is a function of recording the speed of the vehicle when a cancellation wave is received. The recording destination may be a storage device such as an eMMC provided inside the receiver 10 or the storage unit 28 of the communication terminal 20. The speed of the vehicle is preferably the vehicle speed pulse. By using the vehicle speed pulse, the possibility of data falsification can be reduced, so that it is easy to obtain a highly reliable result as the speed of the vehicle when approaching a speed enforcement point. To realize such a function, the receiver 10 preferably further has a cable terminal 19. The cable terminal 19 is an example of a fourth terminal to which an external connection cable is connected. For example, the connection cable is a cable connected to an OBD-II connector mounted on the vehicle. The OBD-II connector, also referred to as a fault diagnosis connector, is connected to the vehicle's ECU and various vehicle information is output. Assume that the vehicle information includes the vehicle speed pulse. The communication terminal 20 acquires the vehicle speed pulse via the receiver 10.

[0101] <2-2. Recording Method of History Display Function·Part 2> The history display function may use the vehicle speed when the vehicle 40 is stopped, for example, the period from a point in time a predetermined time before the vehicle 40 stopped to the time when it stopped. The control unit 21 may determine whether the vehicle 40 has stopped based on the vehicle speed pulse, or may determine based on the vehicle speed calculated based on the position information. Particularly in the latter case, it may be determined that the vehicle has stopped when the speed reaches 0 km / h, but considering the positioning error, it may also be determined that the vehicle has stopped when the speed is below a predetermined speed (for example, 7 km / h). A vehicle that approaches a speed enforcement point and becomes a target for enforcement will be stopped thereafter. Therefore, if the history display function records the vehicle speed when the vehicle 40 is stopped, this can be displayed later and used to check the vehicle speed.

[0102] FIG. 11 is an explanatory diagram of a method for recording the vehicle speed of the history display function. The recording method in FIG. 11 may be applied to either <Recording Method of History Display Function - Part 1> or <Recording Method of History Display Function - Part 2>. As shown in FIG. 11, the history display function records the vehicle speed for a predetermined number of times, for example, about 3 to 5 times (3 times in FIG. 11) as an animation for a predetermined time of about 3 minutes. The numerical values "1", "2", "3", "4" shown in the circles in FIG. 11 correspond to different recording opportunities, and the larger the numerical value, the more recent the recording opportunity. Thereafter, the history display function overwrites in order from the oldest vehicle speed. With such a specification, a large storage capacity is not required. As a specific recording method, as shown in FIG. 11(A), the history display function may sequentially record the vehicle speed and record the vehicle speed of the vehicle 40 for the last predetermined time immediately before stopping as the recording period. Only the predetermined number of times closest to the latest of the recorded data is left. Alternatively, as shown in FIG. 11(B), the history display function may provide a separate folder in advance and leave only the vehicle speed of the vehicle 40 for the last predetermined time immediately before stopping for the predetermined number of times closest to the latest. In this case, if the time adjustment of one data can be made, it will be left with 3 or more data numbers.

[0103] Such a history display function can be expected to have effective effects not only in proving the speed of the vehicle 40 but also in determining the percentage of fault in the event of an accident. In the case of an accident, it may be detected by a sensor (for example, a G sensor) mounted on the receiver 10 to detect an impact, and in that case, the control unit 21 may save the video in another folder. Furthermore, it is better if the recorded vehicle speed cannot be overwritten.

[0104] <2-3. Display Method of History Display Function> When the history display function displays the recorded speed of the vehicle 40, it is preferable to display the temporal change of the vehicle speed by animation. For example, the history display function may display the temporal change of the vehicle speed by animation using a meter. In this way, the change in the speed of the vehicle 40 can be displayed by a display imitating a digital tachometer. For example, a screen with a meter arranged as shown in FIG. 12 may be displayed, and the speed may be displayed using the image of the meter indicated by the numerical value "1" shown in the circular enclosure shown in FIG. 12. In the display using the image of the meter, the history display function moves the position of the needle according to the recorded vehicle speed to display the vehicle speed. In this way, a pseudo digital tachometer can be displayed.

[0105] Note that this embodiment is not limited to the self-defense function against mismeasurement of speed, but is useful for verification at the time of an accident (such as calculation of fault percentage). In addition, it can also be applied to uses such as verification of driving mistakes of the vehicle 40, such as grasping the situations of aggressive driving and dangerous driving.

[0106] <2-4. Modification Example of the Second Embodiment> The present disclosure is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist.

[0107] <3-1> When recording the vehicle speed pulse, as described above, it is desirable from the viewpoint of reliability such as evidence adoption. However, the control unit 21 may record the vehicle speed calculated based on the position information acquired from the positioning unit 29 or the vehicle 40 side. In this case, there is an advantage that OBD connection is unnecessary.

[0108] <3-2>When the vehicle 40 stops, the speed of the vehicle may be recorded each time. However, if a one-touch button is added and can be placed near the user, it may be possible to record only when the user desires (for example, only when a problem occurs). The one-touch button may be used as the operation unit 32 or may be a separately provided operation device.

[0109] <3-3>The history display function may display the speed of the vehicle 40 recorded by operating the one-touch button. The history display function may search by time and display the speed of the vehicle 40 measured at that time.

[0110] <3-4>The history display function may display the temporal change of the vehicle speed by a method other than the meter. For example, the history display function may display the vehicle speed by a graph. In this case, for example, the horizontal axis of the graph may be the time axis and the vertical axis may be the speed.

[0111] <3-5>The history display function may be realized by a conventional radar / laser detector (dedicated device). In this case, even if the one-touch button described in <3-2> is added to the radar detector, the history display function can be implemented with no major mechanical changes.

[0112] <3-6>The history display function may record other data that can identify the vehicle speed. For example, when the history display function is installed in a drive recorder or a device associated with a drive recorder, it may record the speed when a cancellation wave is received or the video taken when the vehicle is stopped (event recording). In this case, it is advisable to separate the storage area, for example, by dividing the folder from other event-recorded videos.

[0113] [4. Modification Example] The present disclosure is not limited to the above-described embodiments and can be appropriately modified without departing from the gist.

[0114] In the above-described embodiments, the presence of a speed enforcement point was determined by receiving a warning wave. Instead of this, or in addition to this, it may also be determined by a method using a captured image. For example, the communication terminal 20 acquires a captured image from an imaging device disposed in the vehicle 40 exemplified by a drive recorder via the wireless communication unit 24. The captured image is, for example, an image capturing the front of the vehicle 40. Then, the control unit 21 analyzes the captured image to determine whether the captured image includes an image indicating the presence of a speed measurement device 90, a sign installed at a speed enforcement point, a police vehicle, or the like, which is a speed enforcement point. The algorithm for the analysis is not limited, but for example, there are methods using deep learning and methods using machine learning (such as pattern matching methods). When the control unit 21 recognizes an image indicating the presence of a speed enforcement point from the captured image, it may perform control in the case where a speed enforcement point exists (for example, output of a notification signal, recording of the vehicle speed, etc.).

[0115] The scope of the present invention is not limited to the configurations explicitly described in the specification, 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 if it is a configuration not currently specified in the claims, the configuration disclosed in this specification has the intention of being the scope of the claims in the future.

[0116] Note that the scope of the present invention is not limited to the configurations explicitly described in the specification, 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 if it is a configuration not currently specified in the claims, the configuration disclosed in this specification has the intention of being the scope of the claims in the future.

[0117] 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 and 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. Regarding these, there is also an intention to obtain rights in the amendment or divisional application of the present application. 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. Configurations other than these cases and times are also disclosed, and there is an intention to obtain rights. Also, the descriptions with an order are not limited to this order. Configurations in which some parts are deleted or the order is changed are also disclosed, and there is an intention to obtain rights.

[0118] Also, due to the change to a design registration application, there is an intention to obtain rights for the overall design or partial design. Although the drawings depict the entire apparatus in solid lines, the drawings include not only the overall design but also partial designs claimed for a part of the apparatus. For example, not only can a part of the members of the apparatus be a partial design, but the drawings also include a partial design of a part of the apparatus regardless of the members. As a part of the apparatus, it may be a part of the members of the apparatus or a part of those members. Regarding the overall design, of course, there is an intention to claim as rights a partial design in which an arbitrary part of the solid-line part of the drawing is made into a dashed-line part. Also, regarding the modules, members, parts, etc. inside the housing of the apparatus, those shown in the drawings are all independently subject to transactions, and similarly, there is an intention to make a change to a design registration application and claim as rights.

Explanation of Reference Numerals

[0119] 1: System 10: Receiver 11: Control Unit 12: Light-Receiving Unit 13: Radar Receiver 14: Wireless Receiver 15: First terminal 16: Second terminal 17: Third terminal 18: Power management unit 19: Cable terminal 20: Communication terminal 21: Control unit 22: Display unit 23: Operation unit 24: Wireless communication unit 25: Microphone 26: Speaker 27: Terminal 28: Memory unit 29: Positioning unit 30: Vehicle-mounted device 31: Display unit 32: Operation unit 40: Vehicle 41: Dashboard 42: Windshield 43: Terminal 50: Cable 60: Cable 90: Speed measurement device 101: Main body part 102: Fixing part 121: Condensing lens 281: Application 282: Database 1011: Power hole

Claims

1. An in-vehicle device arranged in a vehicle, comprising: a communication unit that communicates with an in-vehicle device which communicates with an external terminal and displays information regarding functions of the terminal; a process of obtaining a signal indicating a reception result of the enforcement wave from an external receiver arranged in the vehicle and receiving the enforcement wave indicating the presence of a speed enforcement location, and a control unit that executes a process of outputting a notification signal for notifying that the vehicle and the speed enforcement location have a predetermined proximity relationship to the in-vehicle device in response to the signal indicating the reception result. A communication terminal having the above.

2. The communication unit is capable of communicating with the in-vehicle device via the receiver, and the control unit outputs the notification signal to the in-vehicle device using the communication unit. The communication terminal according to Claim 1.

3. The receiver has a first terminal for wired connection to the communication terminal and a second terminal for wired connection to the in-vehicle device, the communication unit has a third terminal for wired connection to the first terminal, and the control unit outputs the notification signal to the in-vehicle device via the third terminal, the first terminal, and the second terminal. The communication terminal according to Claim 2.

4. The receiver operates by receiving power supply from the vehicle, and the control unit operates by receiving power supply via the receiver. The communication terminal according to Claim 1 or 2.

5. There are a first receiver and a second receiver as the receiver, and the first receiver and the second receiver receive different enforcement waves. The communication terminal according to any one of Claims 1 to 4.

6. The control unit, when being capable of communicating with the in-vehicle device, outputs the notification signal based on position information acquired from the vehicle side and position information of the speed measurement device stored in a database in advance. The communication terminal according to any one of Claims 1 to 5.

7. A positioning unit that measures the position of the self-communication terminal and generates position information, and the control unit executes a process of outputting a first notification signal for notifying that the vehicle and the speed enforcement location have a predetermined proximity relationship based on position information acquired from the vehicle side and position information of the speed enforcement location, and a process of outputting a second notification signal for notifying that the vehicle and the speed enforcement location have a predetermined proximity relationship based on position information generated by the positioning unit and position information of the speed enforcement location. The communication terminal according to Claim 6.

8. The control unit, Execute a process of displaying on a map the position of the speed limit point that emits the said speed limit wave stored in advance in the database. When the said communication unit can communicate with the said receiver, output a notification signal for causing the display of information indicating that the vehicle and the speed limit point have a predetermined proximity relationship together with the said map. The communication terminal according to claim 6 or 7.

9. Have a voice recognition unit that recognizes the input voice of the user. The control unit When a predetermined keyword is recognized from the voice of the said user, if the state of a predetermined function specified by the said keyword is in the first state, switch to the second state, and if the state of the said function is in the second state, switch to the first state. The communication terminal according to any one of claims 1 to 8.

10. The said keyword indicates a component device used for the execution of the said function or the name of the said function. The communication terminal according to claim 9.

11. The control unit Execute a process of recording the speed of the vehicle when the said speed limit wave is received, and a process of displaying the recorded speed of the vehicle. The communication terminal according to any one of claims 1 to 10.

12. The control unit Execute a process of recording the speed of the vehicle for a predetermined period before the vehicle stops, and a process of displaying the recorded speed of the vehicle. The communication terminal according to any one of claims 1 to 11.

13. The said recording process is a process of recording vehicle speed pulses. The communication terminal according to claim 11 or 12.

14. The said recording process records the speed of the vehicle calculated based on the change in the position information of the said vehicle. The communication terminal according to claim 11 or 12.

15. The said display process Displays the temporal change of the recorded vehicle speed by animation. The communication terminal according to any one of claims 11 to 14.

16. The said display process Displays the temporal change of the recorded vehicle speed by animation using a meter. The communication terminal according to any one of claims 11 to 15.

17. A receiving unit provided in the vehicle for receiving a speed limit wave for measuring the speed of the said vehicle, A first terminal for wired connection to an external communication terminal, Have a second terminal for wired connection to the said in-vehicle device, A process of outputting a signal indicating the reception result of the said speed limit wave in the said receiver to the said communication terminal via the said first terminal, and When receiving a notification signal for notifying according to the reception result from the communication terminal via the first terminal, a control unit that executes a process of outputting the notification signal to the in-vehicle device via the second terminal A receiver having

18. A fourth terminal for receiving power supply from the vehicle A power management unit that converts the power input to the fourth terminal into a voltage for operating the communication terminal and outputs it to the communication terminal via the first terminal Having The control unit operates using the power input via the fourth terminal The receiver according to claim 17

19. A program for causing a computer of a communication terminal to function as the control unit of the communication terminal according to any one of claims 1 to 16

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