Communication terminals, receivers, programs, etc.

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 technology]

[0002] Patent Documents 1 and 2 disclose electronic devices that receive microwaves emitted from a vehicle speed enforcement device and output an alarm if the presence of the vehicle speed enforcement device is detected. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2008-64588 A [Patent Document 2] JP 2017-96728 A Summary of the Invention [Problem to be solved by the invention]

[0004] One object of the present invention is to provide a function that is highly convenient for users in terms of notifying them of information related to speed control.

[0005] The purpose of the present invention is not limited to this, and the applicant intends to obtain rights for configurations that aim to obtain effects from parts of the configurations disclosed in this specification and drawings, etc., by filing a divisional application, amendment, etc. For example, this specification discloses a problem in which the part described as "can be" in this specification is read as "the problem is to be". The problems are described as being independent, and the applicant intends to obtain rights for the configurations for solving each problem separately by filing a divisional application, amendment, etc. Even if the problems are implicitly understood from the description in the specification, the applicant intends to include part of the configurations described in this specification in the scope of the patent claim by amendment or divisional application. In addition, the applicant has disclosed a configuration that solves a problem that combines these independent problems, and intends to obtain rights for it. [Means for solving the problem]

[0006] (1) A communications terminal is provided which has an on-board device to be placed in a vehicle, the on-board device having a communication unit that communicates with an external terminal and displays information relating to functions possessed by the terminal, and a control unit that executes a process of acquiring a signal indicating a reception result of a speed enforcement wave from a receiver placed in the vehicle and receiving the speed enforcement wave indicating the presence of a speed enforcement point, and a process of outputting an alarm signal to the on-board device in response to the signal indicating the reception result, for realizing a function of notifying that the vehicle and the speed enforcement point are in a predetermined proximity relationship.

[0007] In this way, the communication terminal, such as a smartphone, and the in-vehicle device mounted on the vehicle work together to provide a function that is highly convenient for the user in terms of notifying information related to speed enforcement. Since the receiver is separate from the communication terminal and the in-vehicle device, the degree of freedom in installation is high, and it is easy to place it in a position in the vehicle where it is easy to receive enforcement waves. Since the communication terminal notifies the user that the vehicle and the speed enforcement point are in a predetermined proximity relationship via the in-vehicle device, the problem that the display screen of the communication terminal is small and difficult for the user to grasp the information can be reduced. In addition, the user does not need to fix the communication terminal to a holder installed on the dashboard and use it as a receiver of enforcement waves or as a monitor. It is possible to reduce the possibility that the driver gives the impression to people outside the vehicle that he is using the communication terminal while driving, so-called "distracted driving."

[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 if the communication terminal is not directly connected to the in-vehicle device, it is possible to output a notification signal to the in-vehicle device. For example, a communication terminal such as a smartphone may have only one terminal for communicatively connecting to an external device, but even in such a case, the communication terminal can transmit and receive data between the receiver and the in-vehicle device.

[0010] (3) The receiver has a first terminal for connecting to the communication terminal via a wired connection and a second terminal for connecting to the in-vehicle device via a wired connection, the communication unit has a third terminal for connecting to the first terminal via a wired connection, and the control unit outputs the alarm 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 communicatively connecting to an external device, but even in such a case, the communication terminal can transmit and receive data between the receiver and the in-vehicle device via a wired communication path.

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

[0013] In this way, the communications terminal operates by receiving power from the vehicle via the receiver, which reduces the possibility of the battery running out and becoming inoperable while the vehicle is traveling.

[0014] (5) The receivers may include a first receiver and a second receiver, and the first receiver and the second receiver may receive different control waves.

[0015] This makes it easier to place the receiver in a position suitable for receiving each enforcement wave, thereby improving the accuracy of notifications in response to reception of the enforcement wave, and contributing to safer driving for the user.

[0016] (6) When the in-vehicle device and the communication unit are able to communicate, the control unit may output the alarm signal based on location information obtained from the vehicle and location information of the speed enforcement point that has been stored in a database in advance.

[0017] In this way, even if the communication terminal does not have a positioning unit, or if it has a positioning unit but its positioning accuracy is poor or it is located in a position where it is difficult to receive signals for positioning, it is possible to accurately report based on the position information. For example, the positioning unit on the vehicle side may have higher positioning accuracy or may be located in a position where it is easy to receive signals for positioning.

[0018] (7) The communication terminal may be provided with a positioning unit that measures the position of the communication terminal and generates position information, and the control unit may execute a process of outputting a first notification signal to notify that the vehicle and the speed enforcement point have a predetermined proximity relationship based on the position information acquired from the vehicle and the position information of the speed enforcement point, and a process of outputting a second notification signal to notify 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, the location information generated by the positioning unit of the communication terminal and the location information acquired from the vehicle side can be selectively used to provide an accurate notification according to the location information. For example, it is possible to use either the positioning unit of the communication terminal or the positioning unit of the vehicle side, whichever has higher positioning accuracy.

[0020] (8) The control unit executes a process of displaying on a map the location of the speed enforcement point emitting the enforcement wave, which has been previously stored in a database, and when the communication unit is able to communicate with the receiver, outputs an alarm signal to display, together with the map, information that the vehicle and the speed enforcement point have a specified proximity relationship.

[0021] In this way, it is possible to notify the vehicle when it is in a certain proximity to a speed control point, regardless of whether the vehicle is connected to a receiver. If the vehicle is connected to a receiver, it is also possible to notify the vehicle when a speed control signal is actually received, thereby improving the accuracy of the notification.

[0022] (9) The device may have a voice recognition unit that recognizes input user voice, and when a predetermined keyword is recognized from the user voice, the control unit may switch the state of a predetermined function identified by the keyword to a second state if the state is a first state, and switch the state of the function to the first state if the state is the second state.

[0023] In this way, even if the same keyword is recognized from the user's voice, the state switching direction is changed depending on the current state, so that the control intended by the user can be performed more reliably than when the switching direction must be recognized from the user's voice along with the keyword. Also, since the vehicle cabin may be in a relatively noisy environment, it is advantageous for the keyword to be recognized to be short. Also, the quality of the voice recognition function of a communication terminal, such as a smartphone, may be better than that of an in-vehicle device. Therefore, the control intended by the user can be performed more reliably.

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

[0025] In this way, the user only needs to speak the name of the component device or function to be used to execute the function, and the user's intended control can be performed more reliably than in a case where the user must recognize the name of the component device or function as well as the direction of state switching from the user's voice.

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

[0027] In this way, the speed at which the vehicle approached the speed control point can be confirmed, and the user can indicate the actual speed of the vehicle even if, for example, the speed at which the vehicle approached the speed control point was measured incorrectly.

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

[0029] In this way, if a vehicle is stopped at a speed control point, the speed of the vehicle of a given organization before the stop can be confirmed. For example, the actual speed of the vehicle can be shown even if the speed measured when approaching the speed control point was erroneously measured.

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

[0031] In this way, the possibility of falsifying the recorded vehicle speed can be reduced, and therefore a more reliable display of the vehicle speed can be obtained.

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

[0033] In this way, even if it is not possible to obtain information specifying the vehicle speed from the vehicle side, such as a vehicle speed pulse, it is possible to record and display the vehicle speed calculated based on changes in the position information generated by the positioning unit after positioning.

[0034] (15) The display process may display the recorded change in speed of the vehicle over time using an animation.

[0035] This makes it easier to visually grasp the change over time in the recorded vehicle speed.

[0036] (16) The display process may display the change in the vehicle speed over time by animation using a meter.

[0037] In this way, the change in the vehicle speed over time is displayed using a display that imitates a digital tachometer, making it easier to visually grasp the change.

[0038] (17) A receiver is provided, the receiver having a receiving unit for receiving enforcement waves to measure the speed of the vehicle, a first terminal for connecting via a wired connection to an external communication terminal, and a second terminal for connecting via a wired connection to an in-vehicle device that communicates with the communication terminal and displays information regarding functions of the communication terminal, and a control unit that executes a process of outputting a signal indicating the reception result of the enforcement waves in the receiver to the communication terminal via the first terminal, and a process of outputting the notification signal to the in-vehicle device via the second terminal when an alarm signal for notifying based on the reception result is received from the communication terminal via the first terminal.

[0039] In this way, the communication terminal, such as a smartphone, and the in-vehicle device mounted on the vehicle work together to provide a function that is highly convenient for the user in terms of notifying information related to speed enforcement. Since the receiver is separate from the communication terminal and the in-vehicle device, the degree of freedom in installation is high, and it is easy to place it in a position in the vehicle where it is easy to receive enforcement waves. Since the communication terminal notifies the user that the vehicle and the speed enforcement point are in a predetermined proximity relationship via the in-vehicle device, the problem that the display screen of the communication terminal is small and difficult for the user to grasp the information can be reduced. In addition, the user does not need to fix the communication terminal to a holder installed on the dashboard and use it as a receiver of enforcement waves or as a monitor. It is possible to reduce the possibility that the driver gives the impression to people outside the vehicle that he is using the communication terminal while driving, so-called "distracted driving."

[0040] (18) The communication terminal may have 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 a voltage for operating the communication terminal and outputs the voltage to the communication terminal via the first terminal, and the control unit may operate using the power input via the third terminal.

[0041] In this way, the communications terminal operates by receiving power from the vehicle via the receiver, which reduces the possibility of the battery running out and becoming inoperable while the vehicle is traveling.

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

[0043] The inventions shown in (1) to (19) above can be arbitrarily combined. For example, it is preferable 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 shown in (1). In particular, it is preferable to add at least a part of the configuration of at least one of the inventions after (2) to the invention shown in (1). In addition, it is also possible to extract any configuration from the inventions shown in (1) to (19) and combine the extracted configurations. The applicant of this application intends to obtain rights to the inventions including these configurations. In addition, even if there is a description such as "in the case of" or "when", it is not intended to describe the configuration as being limited to that case or time. These are examples of better configurations, and the applicant intends to obtain rights to configurations other than these cases or times. In addition, the parts described in order are not limited to this order. Configurations in which some parts have been deleted or the order has been changed are also disclosed, and the applicant intends to obtain rights. Effect of the Invention

[0044] According to the present invention, a technique for notifying information regarding speed control can be provided.

[0045] The effects of the invention of this application are not limited to this, and effects obtained from the configuration disclosed in the specification and drawings, etc. are also disclosed, and the applicant intends to obtain rights to the configuration that achieves the effects by divisional applications, amendments, etc. For example, in this specification, the phrase "can" is a description that clearly indicates the effect that is achieved, and there are also parts that show the effect even without the phrase "can." Also, there are effects that can be understood from the configuration even without such a description. [Brief description of the drawings]

[0046] [Figure 1] 1 is a diagram showing an overall configuration of a system according to a first embodiment. [Diagram 2] FIG. 2 is a diagram showing an overview of the functions of the system according to the first embodiment. [Diagram 3] FIG. 2 is a block diagram showing the electrical configuration of a receiver according to the first embodiment. [Figure 4] 2 is a block diagram showing an electrical configuration of the communication terminal according to the first embodiment. FIG. [Diagram 5] FIG. 4 is a diagram showing an example of a screen displayed on a display unit of the in-car device when an application according to the first embodiment is executed. [Figure 6] 5 is a flowchart showing the operation of the communication terminal and the in-car device according to the first embodiment. [Figure 7] FIG. 4 is a diagram showing an example of a warning screen according to the first embodiment. [Figure 8] 5 is a flowchart showing the operation of the communication terminal and the in-car device according to the first embodiment. [Figure 9] FIG. 4 is a diagram showing an example of a warning screen according to the first embodiment. [Figure 10] 13 is an example of another external configuration of the receiver according to the first embodiment. [Figure 11] FIG. 11 is an explanatory diagram of a method for recording the vehicle speed in the history display function according to the second embodiment. [Figure 12] FIG. 11 is an explanatory diagram of a method for displaying the vehicle speed in the history display function according to the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0047] Hereinafter, the embodiments will be described in detail with reference to the drawings. The embodiments shown below 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 similar functions are given the same or similar symbols (symbols with A, B, etc. added after the numbers), and repeated explanations may be omitted. In addition, in each figure referred to in the following description, the scale may be different from the actual scale in order to make each member, each area, etc. recognizable. Hereinafter, a case will be described in which the system of the present disclosure is applied to a system mounted on a vehicle and detects a speed enforcement device. 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 an overall configuration of a system 1 according to a first embodiment. FIG. 1 shows a state in which the periphery of a dashboard 41 on the front side is viewed from the rear seat position in a passenger compartment of a 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 to each other using a cable 50. The receiver 10 and the in-vehicle device 30 are connected to each other using a cable 60. The cables 50 and 60 each function as a wired communication path. The cables 50 and 60 may have a power 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 is compatible with, 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 important. The receiver 10 receives a control wave emitted from the speed measurement device 90. The control wave is an electromagnetic wave indicating the presence of a speed control point, which is a point where the speed of a vehicle is controlled. The receiver 10 receives a control wave that has passed through, for example, the windshield 42. The speed measurement device 90 is installed at the speed control point and emits a control wave. There are various types of speed measurement devices 90, for example, a radar type and a laser type. A radar type speed measurement device 90 transmits a radar wave as a control wave. A laser type speed measurement device 90 transmits a laser light as a control wave. The laser light and the radar wave can also be said to be measurement waves for measuring the speed of a vehicle. Speed ​​enforcement points are determined taking into consideration vehicle driving conditions (e.g., whether vehicles are likely to speed), traffic accident occurrence conditions (e.g., points with a high number of accidents), etc. An example of a speed enforcement point is a point on a curve or beyond a curve on a route on which a vehicle is traveling.

[0050] The communication terminal 20 is a communication terminal carried by a user. In this embodiment, the communication terminal 20 is not manufactured as a dedicated product such as a so-called radar / laser detector, but is a general-purpose communication terminal. The communication terminal 20 is, for example, a smartphone, but may also be a tablet computer or a wearable computer. 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 about a speed control point for a vehicle. When the receiver 10 receives an enforcement wave, the communication terminal 20 outputs an alarm signal, which is a signal for issuing an alarm via the in-vehicle device 30, to the in-vehicle device 30. The alarm function is a function realized by an application program (application 281 described later) that operates 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 that is mounted in advance before the vehicle 40 is shipped, but may also be a device that is later installed by a user. The in-vehicle device 30 communicates (i.e., cooperates) with the communication terminal 20 to notify information related to a function (e.g., an alarm function) possessed by the communication terminal 20. The function that the in-vehicle device 30 realizes by cooperating with the communication terminal 20 is realized by Apple Carplay (registered trademark), Android Auto (registered trademark), or a function similar thereto, but is not limited thereto.

[0052] The in-vehicle device 30 has 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 accepts user operations. The operation unit 32 has, for example, a plurality of physical buttons, but may also have a touch sensor arranged over the display unit 31 or other operation means. The in-vehicle device 30 may display information related to the alarm on the display unit 31 in response to a notification signal from the communication terminal 20, or output a sound related to the alarm from a speaker (not shown). The in-vehicle device 30 outputs an operation signal indicating the operation accepted by the operation unit 32 to the communication terminal 20.

[0053] The in-vehicle device 30 may also function as a navigation device that displays a map, displays the position of the vehicle 40 on the map, and provides route guidance. The navigation function of the in-vehicle device 30 can be realized without linking 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 receives positioning signals using, for example, a Global Positioning System (GPS), a Global Navigation Satellite System (GLONASS), Galileo, a Quasi-Zenith Satellite System (QZSS), or the like, which are Global Navigation Satellite Systems (GNSS), and generates 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] FIG. 2 is a diagram showing an outline of the functions of the system 1. The receiver 10 is connected to an accessory power source of the vehicle 40. The receiver 10 operates by receiving a supply of DC 12V power. The receiver 10 outputs data indicating the reception result of the enforcement wave (hereinafter referred to as "reception result data") to the communication terminal 20 via a cable 50. The receiver 10 converts the voltage of DC 12V to a voltage of DC 5V 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 a cable 60 based on the reception result data. The communication terminal 20 operates by receiving a supply of power from an internal battery (not shown) and a supply of DC 5V power 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. The in-vehicle device 30 also 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] 3 is a block diagram showing an electrical configuration of the receiver 10. The control unit 11 controls each unit of the receiver 10. The control unit 11 is, for example, a computer including an arithmetic processing circuit and a memory. The arithmetic processing circuit includes, for example, a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other arithmetic processing circuits. The memory includes, for example, a random access memory (RAM) or other volatile memory. The arithmetic processing circuit performs various controls by temporarily reading data into the memory and performing arithmetic processing. This data includes a program executed by the control unit 11.

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

[0058] The radar receiver 13 receives radar waves as enforcement waves from a radar-compatible speed measurement device 90. The radar waves include a specified microwave, a stealth wave that is emitted only at the moment when a specified stealth enforcement device measures, a normal radar wave, a new type of radar wave compatible with K-band and X-band, and a cancellation notification. The radar receiver 13 has, for example, an antenna and a receiving circuit.

[0059] The radio receiving unit 14 receives a radio signal of a predetermined frequency. This radio signal is also an example of a speed enforcement wave that indicates the presence of a speed enforcement point. Examples of this radio signal include radio signals belonging to frequencies such as speed enforcement radio, car location radio, digital radio, special low-power radio, local jurisdiction radio, police telephone, police activity radio, tow truck radio, helicopter radio, firefighting helicopter radio, firefighting radio, emergency radio, highway radio, and police radio. The radio receiving unit 14 has, for example, an antenna and a receiving circuit.

[0060] The first terminal 15 is connected to a cable 50. The first terminal 15 is connected to the communication terminal 20 via the cable 50. The second terminal 16 is connected to a 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, a proprietary standard of the manufacturer of the communication terminal 20 or a general-purpose standard such as USB, and may have a pin for inputting and outputting data and a pin 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 an accessory power source 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 DC 12V to DC 5V. The control unit 11 supplies power to each unit 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 supply 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 an electrical configuration of the communication terminal 20. The control unit 21 controls each part of the communication terminal 20. The control unit 21 is, for example, a computer including an arithmetic processing circuit and a memory. The arithmetic processing circuit includes, for example, a CPU, an ASIC, an FPGA, or other arithmetic processing circuit. The memory includes, for example, a RAM or other volatile memory. The arithmetic processing circuit performs various controls by temporarily reading data into 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, the communication terminal 20 operates by receiving power from the vehicle via the receiver 10, so that it is possible to reduce the possibility that the battery runs out and becomes inoperable while the vehicle is traveling. Furthermore, 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 accepts operations performed by the user. The operation unit 23 includes, for example, a touch sensor and physical buttons superimposed on the display area. The wireless communication unit 24 connects to a mobile communication network or a public communication network to perform 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 using, for example, Wi-Fi (registered trademark), Bluetooth (registered trademark), or other methods. The microphone 25 converts voice input by the user into an audio signal and supplies it to the control unit 21. The speaker 26 converts the audio signal supplied from the control unit 21 into audio 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 out the application 281 from the storage unit 28 to a memory and executes it. The storage unit 28 stores a database 282 that accumulates position information of objects to be warned. 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. Objects to be warned include speed enforcement points. More specifically, objects to be warned are, for example, speed measurement devices 90 (for example, laser type, radar type, loop coil type, H system, LH system, photocell type, mobile type, etc.). Other alarm objects include drowsy driving accident locations, speed limit change points, enforcement areas, checkpoint areas, parking ban monitoring areas, N systems, traffic monitoring systems, intersection monitoring points, signal ignoring prevention systems, police stations, accident-prone areas, vehicle theft-prone areas, sharp / continuous curves (expressways), branching / merging points (expressways), ETC lane advance guidance (expressways), service areas (expressways), parking areas (expressways), highway oases (expressways), smart interchanges (expressways), PA / SA gas stations (expressways), tunnels (expressways), highway radio receiving areas (expressways), prefectural border notices, roadside stations (registered trademark), and view point parking. The database 282 may store type information of these alarm objects, location information indicating their locations, data of an image (e.g., a schematic diagram or a photograph) to be displayed on the display unit 22, and audio data in association with each other.

[0065] 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 stored in cloud computing or other external storage means as appropriate.

[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. The positioning unit 29 receives a positioning signal using, for example, a global navigation satellite system (GNSS) such as GPS, GLONASS, Galileo, or Quasi-Zenith Satellite System (QZSS), and generates the position information based on the received positioning signal. The position information may be specified by, for example, latitude information and longitude information.

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

[0068] <1-2. Operation> <1-2-1. First alarm function> The operation of this embodiment will be described below. Fig. 6 is a flowchart showing the operation of the communication terminal 20 and the in-vehicle device 30. First, by a user's operation or by connecting the communication terminal 20 and the in-vehicle device 30, cooperation between the alarm 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 of 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 judges whether or not the enforcement wave has been received by the receiver 10 based on the acquired reception result data (step S3). The reception result data should be a signal capable of identifying at least whether or not the enforcement wave has been received, and in particular, it is even better if the reception result data is a signal capable of identifying at least one of the type (method) of the speed measuring device 90 and the strength of the enforcement wave. Below, a case will be described in which it is possible to identify whether or not the enforcement wave has been received, the type (method) of the speed measuring device 90, and the strength of the enforcement wave.

[0070] If it is determined "NO" in step S3, the control unit 21 returns to the process of step S2. If it is determined "YES" in step S3, the control unit 21 outputs a notification signal for warning of approaching a 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 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 is preferably 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 "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, it stops outputting the notification signal. If 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). If it is determined "NO" in step S11, the in-vehicle device 30 returns to the process of step S11. If it is determined "YES" in step S11, the in-vehicle device 30 performs warning control for warning of approaching a speed limit location based on the notification signal (step S12). The warning control may be performed in a manner 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 arranged so as to be superimposed on a map screen M1. The in-vehicle device 30 issues an alarm by displaying the window W1 superimposed on a map M. The map M is specified based on map data and position information generated by the positioning unit 29 or position information on the vehicle 40 side. An icon I indicating the position of the vehicle 40 (the vehicle's position) is arranged on the map M. The vehicle's position is specified based on position information from the positioning unit of the in-vehicle device 30. The map M may be displayed based on an alarm signal, but if map data used for navigation or the like installed in the in-vehicle device 30 is used, the amount of transmission of the alarm signal is reduced, making it easier to issue an alarm at an appropriate timing, for example. The icon in this embodiment may be replaced with a character, a symbol, a figure, or another object.

[0074] In the example shown in FIG. 7(A), a message "This is a speed control point" is displayed in window W1, indicating the presence of a speed control point. The in-vehicle device 30 may output a voice saying "This is a speed control point" from a speaker (not shown). If the in-vehicle device 30 can determine the type of speed control point (e.g., laser type, radar type, fixed type, mobile type), it may perform control to issue an alarm including a notification of the type of speed control device. For example, as shown in FIG. 7(B), the control unit 11 may notify the presence of a speed control point by displaying a message "This is a radar type speed control point" in window W2.

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

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

[0077] Next, the control unit 21 compares the position information stored in the database 282 with the position information acquired in step S21 (step S22). Next, the control unit 21 determines whether or not the vehicle 40 and the speed control point are in a predetermined proximity relationship based on the position information acquired in step S21 and any of the position information stored in the database 282 (step S23). The predetermined proximity relationship may be, for example, that the distance between the position information of the speed control point and the position information of the 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 a position relationship such as the presence of a speed control point in the traveling direction of the vehicle or the presence of a speed control point on the road on which the vehicle is traveling.

[0078] If the answer is "YES" in step S23, the control unit 21 outputs a notification signal for warning the approach of a speed control point to the in-vehicle device 30 via the terminal 27 (step S24). The notification signal may be the same as the notification signal transmitted in step S4, but the content of the warning control may be different.

[0079] Next, the control unit 21 judges whether to end the process of FIG. 8 (step S25). The process may be ended by any trigger, for example, a user operation or when the connection between the communication terminal 20 and the in-vehicle device 30 is released. If the control unit 21 judges "NO" in step S25, the control unit 21 returns to the process of step S21 and repeats the above process. If the control unit 21 judges "NO" in step S23 and no longer judges that the vehicle is in a predetermined proximity to the speed control point, the control unit 21 stops outputting the notification signal. If the control unit 21 judges "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 judges whether or not an alarm signal has been acquired from the communication terminal 20 (step S32). If the result of the judgment in step S32 is "NO", the in-vehicle device 30 returns to the processing of step S31. If the result of the judgment in step S32 is "YES", the in-vehicle device 30 performs alarm control (step S33). The alarm control may include displaying an alarm screen. The alarm control may be similar to the alarm control in step S12, but the contents 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 saying "This is a registered speed enforcement point" is displayed in the window W3. The in-vehicle device 30 may also output a voice saying "This is a registered speed enforcement point" from the speaker. In this way, the presence of a speed enforcement point can be notified based on the position of the vehicle 40, so that the presence can be notified even if the receiver 10 does not receive enforcement waves.

[0082] In this way, by utilizing the linking function exemplified by Apple CarPlay to link the receiver 10, the communication terminal 20, and the in-vehicle device 30, a highly convenient warning function can be provided for the user, contributing to the user's safe driving. Unlike conventional radar detectors, 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, which can reduce costs and is expected to have the effect of miniaturization.

[0083] In addition, since the communication terminal 20 can obtain the position information from the in-vehicle device 30 or the vehicle 40, even if the communication terminal 20 does not have the positioning unit 29, or if the communication terminal 20 has a positioning unit but the positioning accuracy is not good or the communication terminal 20 is located in a position where it is difficult to receive a signal for positioning, the communication terminal 20 can accurately notify the user according to the position information. Furthermore, the communication terminal 20 has the database 282, and can update the information in the database 282 through communication with the wireless communication unit 24. Therefore, the receiver 10 does not need to have a communication function or an SD card slot for obtaining updated data on speed control points. Furthermore, the receiver 10 does not need a speaker for outputting sounds such as an alarm sound, and since the power for operation is supplied by turning on / off the accessory power supply of the vehicle 40, no switch parts are required, so the receiver 10 has the advantage of being less expensive and having no holes (the only hole in the receiver 10 is, for example, a power supply hole). Therefore, the waterproof design of the receiver 10 is simplified, making it easy to use as a receiver for motorcycles, for example. For example, it is thought that there is a high possibility that this could be developed by simply modifying a conventional radar detector by adding or removing waterproof gaskets.

[0084] FIG. 10 shows another example of the external configuration of the receiver 10 designed in this way. FIG. 10(A) shows the receiver 10 as seen from the front side, and FIG. 10(B) shows the receiver 10 as seen from the back side. The receiver 10 is installed on a dashboard using, for example, double-sided tape. The housing of the receiver 10 is made of resin or other materials. The receiver 10 is roughly divided into a main body 101 and a fixing part 102. The main body 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. Unlike a monitor-type radar detector of a conventional configuration, a display unit such as a liquid crystal display or a touch sensor is not provided on the front side, and an opening on the front side of the main body 101 is not necessary. A condenser lens 121 of the light receiving unit 12 for receiving laser light from the speed measuring device 90 is provided on the back side of the main body 101. A power supply hole 1011 is also provided on the back side of the main body 101. 2 may be built inside main body unit 101. Fixed unit 102 is a fixing member provided under main body unit 101 for fixing main body unit 101 to a predetermined location. Fixed unit 102 is also called a bracket, and functions as a base for receiver 10. When attached to fixed unit 102, main body unit 101 can change its position up and down and left and right.

[0085] According to the embodiment described above, the communication terminal 20, exemplified by a smartphone, and the in-vehicle device 30 mounted on the vehicle 40 cooperate to provide a function that is highly convenient for the user in terms of reporting 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 installation is high, and it is easy to arrange it in a position in the vehicle 40 where it is easy to receive enforcement waves. Since the communication terminal 20 notifies the user that the vehicle 40 and the speed enforcement point have a predetermined proximity relationship via the in-vehicle device 30, the problem that it is difficult for the user to grasp the information due to the small display screen of the communication terminal 20 can be alleviated. In addition, the user does not need to fix the communication terminal 20 to a holder installed on the dashboard 41 and use it as a receiver of enforcement waves or as a monitor. It is possible to reduce the possibility that the driver gives the impression to people outside the vehicle 40 that he is using the communication terminal 20 while driving, that is, that he is "driving while distracted."

[0086] <1-3. Modification of the first embodiment> The present disclosure is not limited to the above-described embodiments, and can be modified as appropriate without departing from the spirit and scope of the present disclosure.

[0087] <1-3-1. Linking with other applications> In the first embodiment described above, the communication terminal 20 and the in-vehicle device 30 are electrically connected via the receiver 10, with the receiver 10 serving as a hub. Alternatively, 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 communicatively connecting to an external device. Therefore, the communication terminal 20 may be connected to the receiver 10 via wireless communication by the wireless communication unit 24. In this case, the control unit 21 acquires 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 using the receiver 10. The communication terminal 20 may also 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. The alarm control function may execute either one or both of them according to the user's settings, etc. The first alarm function may be realized by the application 281, and the second alarm function may be realized by an application (for example, an application having a navigation function, such as a map application) installed in the communication terminal 20. In this case, the application and the application 281 cooperate with each other to realize the first alarm function and the second alarm function. The second alarm function may be realized by a navigation function installed in 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) capable of setting (switching) whether to use the positioning unit 29 or the positioning unit of the vehicle 40 based on the application 281. For example, the control unit 21 sets either one in response to a user's operation using the operation unit 23 or the operation unit 32. When using the position information acquired from the vehicle 40, the control unit 21 outputs a first notification signal for notifying that the vehicle 40 and the speed enforcement point have a predetermined proximity relationship based on the position information and the position information of the speed enforcement point. When using the position information acquired from the positioning unit 29, the control unit 21 outputs a second notification signal for notifying that the vehicle 40 and the speed enforcement point have a predetermined proximity relationship based on the position information and the position information of the speed enforcement point. In this way, the position information generated by the positioning unit 29 of the communication terminal 20 and the position information acquired from the vehicle 40 can be selectively used to perform a notification according to the position information with high accuracy. For example, between the positioning unit 29 of the communication terminal 20 and the positioning unit on the vehicle 40 side, one having higher positioning accuracy may be used.

[0090] <1-3-4. Linking with other applications> The control unit 21 of the communication terminal 20 may have a linking function for linking the application 281 with another application. The application 281 may further link with another application, for example, with an application that provides a social networking service (SNS) function. In this case, when the receiver 10 receives a control wave or when the communication terminal 20 determines that the vehicle 40 has a predetermined proximity relationship with a speed control point, the communication terminal 20 may transmit (upload) posting information to be posted to a predetermined SNS to an SNS server. This may be done either manually or automatically. Since an application that provides an SNS function is often installed in the communication terminal 20, the user is not forced to take much effort in posting.

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

[0092] The keyword may indicate, for example, the name of a component device or a function used to execute a function controlled by a voice instruction. For example, consider a case where a "monitor" (for example, the display unit 31) is controlled as a component device. Normally, there are voice instructions (voice commands) such as "monitor on" and "monitor off". In this embodiment, the control unit 21 recognizes the keyword "monitor" and turns it "off" if the current state is "on", and turns it "on" if the current state is "off". For example, consider a case where a "recording function" is controlled as the name of a function. Normally, there are voice instructions such as "recording start" and "recording end". In this embodiment, the control unit 21 recognizes the keyword "recording on" and turns it "recording off" (stop recording) if the current state is "recording on" (recording in progress), and turns it "recording on" (start recording) if the current state is "recording off" (stop recording). In this case, if the control unit 21 outputs, for example, via the in-vehicle device 30, what control to execute when it recognizes the keyword, it is easy for the user to understand. The control unit 21 may output voices such as, for example, "Monitor on", "Monitor off", "Recording ends", and "Recording starts". In this way, the control unit 21 may narrow down the voices (voice instructions) that the user should input in advance, and may return the control to be executed from the speaker of the in-vehicle device 30 or the like, so that the user can know when the voice instructions have been completed.

[0093] The above relationship between voice instructions and control is an example. For example, if system 1 is further linked to a drive recorder, the control unit 21 would recognize a keyword indicating the name of the function "ROKUGA" (recording) and set it to "RECORDING OFF" (stop recording) if the current state is "RECORDING OFF" (stop recording), or set it to "RECORDING ON" (start recording) if the current state is "RECORDING OFF" (stop recording).

[0094] In this way, in the voice recognition function, if the selection such as ON / OFF of the function is eliminated and only the functional aspects (the above-mentioned component device name and function name) are used as commands, and the opposite setting to the current setting can be selected sequentially, the shorter the voice instruction, the easier it will be to recognize it. If there are many commands, the user may forget them, and if the command is long, the user may have difficulty in speaking, making it difficult to recognize the voice, but if the command is short, the rate of recognition without problems will be higher. In addition, various voice instructions can be given using the voice recognition function of the communication terminal 20, so that the driver can operate the vehicle safely while driving. For example, since the communication terminal 20 may have a high-quality voice recognition function, it is expected that the accuracy of control according to voice instructions will be improved compared to conventional in-vehicle devices.

[0095] <1-3-6. Receiver configuration> In the first embodiment described above, the system 1 has only one receiver 10, but 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 enforcement waves. For example, the receivers for receiving radar waves, laser light, radio signals, and positioning signals as enforcement waves may be separated into two or more receivers and realized in independent housings. In this way, it becomes easier to place the receiver in a position suitable for receiving each enforcement wave, and as a result, the accuracy of the notification in response to the reception of the enforcement wave can be improved, which contributes to the user's safe driving. In addition, an acceleration sensor and other sensors may be mounted on the receiver. In addition, the receiver is not limited to being placed on the top surface of a dashboard or a stand, and may be attached to a predetermined part of the vehicle 40, such as the windshield.

[0096] <1-3-7. Linking with devices other than the receiver 10> In the system 1, instead of or in addition to the receiver 10, it is also possible to link with devices other than the receiver 10. Various in-vehicle devices are possible as such devices, and an example is a drive recorder. A drive recorder has a function of taking pictures, a function of recording the taken images, and may also have a function of displaying the recorded images. In the case of a drive recorder, the main body is usually installed at a distance from the user, such as on the top of the windshield, so it is thought that many people do not touch it after installing it. Therefore, by making it possible to operate the drive recorder 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 that a new function not available in conventional drive recorders will be provided, and its use will be promoted. For example, the control unit 21 may display a driving image on the display unit 31 of the in-vehicle device 30, and output the sound by overlaying a favorite song of the user or the passenger stored in the communication terminal 20.

[0097] [2. Second embodiment] The following embodiment is an example of an embodiment that provides a function that is highly convenient for the user regarding notification of information related to speed control.

[0098] First, the background of the conception of this embodiment will be described. When measuring the speed of a vehicle using the above-mentioned speed measuring device 90, there is a possibility that an incorrect speed may be measured. Therefore, in order to protect the driver, if the radar / laser detector had a function that records reception and warning history when radar waves, laser light, K-band radio waves, and other enforcement waves used in speed violation enforcement are received and the user can check the history, it was thought that the occurrence of problems could be suppressed. For example, since the speed and position information of the vehicle 40 at the time of alarm control can be checked by the user, it is effective as a self-defense function. On the other hand, a device called a digital tachometer is generally expensive, and it may be difficult for users to introduce it.

[0099] In consideration of the above-mentioned background to the idea, 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-mentioned embodiment. The history display function has a function of recording the vehicle speed by any of the following methods, and a function of displaying the recorded vehicle speed.

[0100] <2-1. How to record the history display function - Part 1> The history display function is a function for recording the speed of the vehicle when the enforcement wave is received. The recording destination may be a storage device such as an eMMC provided inside the receiver 10, or may be the storage unit 28 of the communication terminal 20. The speed of the vehicle may be a vehicle speed pulse. If the speed pulse is used, the possibility of data tampering can be reduced, so that it is easier to obtain a highly reliable result as the speed of the vehicle when approaching a speed enforcement point. In order to realize such a function, the receiver 10 may further have 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 that connects to an OBD-II connector mounted on the vehicle. The OBD-II connector is also called a fault diagnosis connector, and is connected to the ECU of the vehicle, and various vehicle information is output. It is assumed that the vehicle information includes a vehicle speed pulse. The communication terminal 20 acquires the vehicle speed pulse via the receiver 10.

[0101] <2-2. How to record the history display function - Part 2> The history display function may record the speed of the vehicle when the vehicle 40 was stopped, for example, the period from a point going back a predetermined time from the point when the vehicle 40 was stopped to the point when the vehicle was 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 speed of the vehicle 40 calculated based on the position information. In particular, in the latter case, the vehicle may be determined to have stopped when the speed reaches 0 km / h, but may be determined to have stopped when the speed falls below a predetermined speed (for example, 7 km / h) taking into account positioning errors. A vehicle that approaches a speed control point and becomes a target of control will be stopped thereafter. Therefore, if the history display function records the speed of the vehicle when the vehicle 40 was stopped, it can be used to display this later and check the speed of the vehicle.

[0102] FIG. 11 is an explanatory diagram of a method for recording the speed of a vehicle in the history display function. The recording method in FIG. 11 may be applied to either the <recording method for the history display function, part 1> or the <recording method for the history display function, part 2>. As shown in FIG. 11, the history display function records the speed of a vehicle for displaying the speed of the vehicle as an animation for a predetermined time, for example, about 3 minutes, a predetermined number of times, for example, about 3 to 5 times (3 times in FIG. 11). The numbers "1", "2", "3", and "4" in the circles in FIG. 11 correspond to different recording occasions, and the larger the number, the newer the recording occasion. Thereafter, the history display function overwrites the speed of the vehicle in order from the oldest. With such a specification, a large storage capacity is not required. As a specific recording method, the history display function may record the speed of the vehicle 40 sequentially as shown in FIG. 11(A), and record the speed of the vehicle 40 as the recording period for the last predetermined time just before the vehicle stops. The recorded data is left only for the predetermined number of times close to the latest. Alternatively, the history display function may be configured to provide a separate folder in advance and store the speed of the vehicle 40 for the last predetermined time just before the vehicle stops for a predetermined number of times that are close to the latest, as shown in Fig. 11(B). In this case, if the time of each data item can be adjusted, three or more data items will be stored.

[0103] Such a history display function is expected to be effective not only in proving the speed of the vehicle 40, but also in determining the degree of fault in the event of an accident. Accidents, etc., can be detected by a sensor (e.g., a G sensor) that detects impact mounted on the receiver 10, and in that case, the control unit 21 should store the video in a further separate folder. Furthermore, it is even better if the recorded vehicle speed cannot be overwritten.

[0104] <2-3. How to display the history display function> When displaying the recorded speed of the vehicle 40, the history display function may display the change in the vehicle speed over time using animation. For example, the history display function may display the change in the vehicle speed over time using animation using a meter. In this way, the change in the speed of the vehicle 40 can be displayed using a display that imitates a digital tachometer. For example, a screen on which meters are arranged as shown in FIG. 12 may be displayed, and the speed may be displayed using an image of a meter indicated by the number "1" circled in FIG. 12. In the display using the image of the meter, the history display function displays the vehicle speed by moving the position of the needle according to the recorded vehicle speed. In this way, a pseudo digital tachometer can be displayed.

[0105] This embodiment is not limited to a self-defense function against erroneous speed measurement, but is also useful for verification at the time of an accident (calculation of fault ratio, etc.). It can also be deployed for applications such as verifying driving mistakes of the vehicle 40, and grasping the situation of aggressive driving or dangerous driving.

[0106] <2-4. Modification of the second embodiment> The present disclosure is not limited to the above-described embodiments, and can be modified as appropriate without departing from the spirit and scope of the present disclosure.

[0107] <3-1> Although recording the vehicle speed pulse is desirable from the viewpoint of reliability such as the use of evidence as described above, 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. In this case, there is an advantage that an OBD connection is not required.

[0108] <3-2> The speed of the vehicle 40 may be recorded every time the vehicle 40 stops, but if a one-touch button is added and 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 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 a 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 change in the vehicle speed over time in a manner other than a meter. For example, the history display function may display the vehicle speed in a graph. In this case, for example, the horizontal axis of the graph may represent time and the vertical axis may represent 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 without any major mechanical changes.

[0112] <3-6> The history display function may record other data that can identify the vehicle speed. For example, the history display function may be installed in a drive recorder or in a device linked to a drive recorder, and may record the speed at which a traffic signal was received or the video taken when the vehicle was stopped (event recording). In this case, it is recommended to separate the storage area from other event-recorded videos, for example by separating the folder.

[0113] [4. Modifications] The present disclosure is not limited to the above-described embodiments, and can be modified as appropriate without departing from the spirit and scope of the present disclosure.

[0114] In the above-described embodiment, the existence of a speed control point is determined by receiving a control wave, but instead of or in addition to this, the existence of a speed control point may 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 as a drive recorder, via the wireless communication unit 24. The captured image is, for example, an image of the front of the vehicle 40. The control unit 21 then analyzes the captured image and determines whether or not an image indicating the existence of a speed control point, such as a speed measurement device 90, a signboard installed at a speed control point, or a police vehicle, is included in the captured image. There is no restriction on the analysis algorithm, but there are, for example, a method using deep learning and a method using machine learning (such as a pattern matching method). When the control unit 21 recognizes an image indicating the existence of a speed control point from the captured image, it is preferable to perform control in the case where a speed control point exists (for example, outputting a notification signal, recording the speed of the vehicle, etc.).

[0115] The scope of the present invention is not limited to the configurations expressly described in the specification, but includes combinations of various aspects of the present invention disclosed herein. The configurations of the present invention for which a patent is sought are specified in the appended claims, but it is the intention of the present inventors to include in the claims any configurations disclosed in this specification that are not currently specified in the claims.

[0116] The scope of the present invention is not limited to the configurations explicitly described in the specification, but includes combinations of various aspects of the present invention disclosed in this specification. The configurations of the present invention that are to be patented are specified in the attached claims, but it is our intention to include configurations disclosed in this specification in the claims in the future, even if they are not currently specified in the claims.

[0117] The present invention is not limited to the configuration described in the above-mentioned embodiment. The components of each of the above-mentioned embodiments and modifications may be arbitrarily selected and combined. Any components of each of the embodiments and modifications may be arbitrarily combined with any components described in the means for solving the invention or any components that embody any components described in the means for solving the invention. We intend to acquire rights to these as well through amendments to this application or divisional applications. Even if there is a description such as "in the case of" or "when", this is not intended to describe a configuration that is limited to that case or time. We also disclose configurations that are not in these cases or times, and we intend to acquire rights. Furthermore, the parts described in order are not limited to this order. We also disclose configurations in which some parts are deleted or the order is changed, and we intend to acquire rights.

[0118] In addition, we intend to obtain rights to the overall design or partial design by converting to a design registration application. The drawings depict the entire device in solid lines, but they include not only the overall design but also partial designs claimed for a part of the device. For example, some parts of the device may be partial designs, and the drawings include some parts of the device as partial designs regardless of the parts. A part of the device may be a part of the device, or a part of that part. We intend to obtain rights to the overall design as well as partial designs in which any part of the solid line part of the drawing is shown as a broken line part. In addition, the modules, parts, and components inside the device's casing, all of which are shown in the drawings, are subject to trade independently, and we intend to obtain rights to them by converting to a design registration application in the same way. [Explanation of symbols]

[0119] 1: System 10: Receiver 11: Control section 12: Light receiving part 13: Radar receiver 14: Wireless receiver 15: 1st terminal 16: 2nd terminal 17: 3rd terminal 18: Power management department 19: Cable terminal 20: Communication terminal 21: Control section 22:Display section 23:Operation section 24: Wireless communication section 25: Microphone 26: Speaker 27: Terminal 28: Storage section 29: Positioning unit 30:In-vehicle equipment 31: Display section 32:Operation unit 40: Vehicle 41: Dashboard 42: Windshield 43: Terminal 50: Cable 60: Cable 90: Speed ​​measuring device 101: Main body 102:Fixed part 121: Condenser lens 281: Application 282: Database 1011: Power hole

Claims

1. a communication unit that communicates with an in-vehicle device disposed in a vehicle and that communicates with an external terminal and displays information related to functions of the terminal; A process of acquiring a signal indicating a reception result of a speed control wave from an external receiver arranged on the vehicle and receiving the speed control wave indicating the presence of a speed control point; and a control unit that executes a process of outputting, to the in-vehicle device, a notification signal for notifying that the vehicle and the speed enforcement point are in a predetermined proximity relationship in response to the signal indicating the reception result, the communication unit is capable of communicating with the in-vehicle device via the receiver, The control unit outputs the notification signal to the in-vehicle device using the communication unit. Communications terminal.

2. the receiver has a first terminal for connecting to the communication terminal via a wire and a second terminal for connecting to the in-vehicle device via a wire; the communication unit has a third terminal for connecting to the first terminal by wire, 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 1.

3. A receiver provided in a vehicle, A receiver for receiving a control wave for measuring the speed of the vehicle; a first terminal for connecting to an external communication terminal by wire; a second terminal for connecting to an in-vehicle device disposed in the vehicle by wire; A process of outputting a signal indicating a reception result of the control wave at the receiving unit to the communication terminal via the first terminal; and a control unit that, when receiving a notification signal for notifying the vehicle-mounted device according to the reception result from the communication terminal via the first terminal, outputs the notification signal to the vehicle-mounted device via the second terminal; A receiver having

4. a fourth terminal that receives a supply of electric power 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 the voltage to the communication terminal via the first terminal; having The control unit operates using power input via the fourth terminal.

4. The receiver according to claim 3.

5. A program for causing a computer of a communication terminal to function as a communication unit and a control unit of the communication terminal according to claim 1 or 2.

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