System, program, etc.

Abstract

To provide a system and the like that suppress a false alarm due to a microwave and the like which are emitted for a human sensor and the like by an automatic vending machine, and are more excellent than before.SOLUTION: A system according to the present invention performs processing to mute audio output toward a loudspeaker 20 as suppression processing in a case of a state in which "A voice alarm is not performed at the time of suppression" is selected for example. As a result, even when a signal receiving a microwave using a microwave receiver 11 is input into a control section 18, a voice alarm of a microwave alarm is not performed. This permits only the alarm for a screen to be performed.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to, for example, systems and programs, etc.

Background Art

[0002] There is known a speed measurement system (radar) that emits microwaves toward a vehicle traveling at microwave speeds and measures the traveling speed of the vehicle based on the amount of Doppler transition of the reflected wave from the vehicle. There is a radar detector that issues an alarm when receiving the microwaves emitted from this speed measurement system, and it is a system that contributes to safe driving by issuing an alarm to a driver who has accidentally exceeded the speed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the conventional systems had various problems. Therefore, an object of the present invention is to provide a system, a program, etc. having characteristics superior to the prior art.

[0005] The object of the present invention is not limited to this, and the applicant also has the intention to obtain rights through divisional applications, amendments, etc. for configurations that aim to obtain the effects achieved by parts of the configurations disclosed in this specification, drawings, etc. For example, in this specification, the problems obtained by reading the parts described as "can be" or "is possible" as "is a problem" are disclosed in this specification. The problems are described as independent ones, and the applicant also has the intention to obtain rights through divisional applications, amendments, etc. for the configurations for solving each problem alone. Even if the problems are implicitly grasped from the description of the specification, the applicant has the intention to make part of the configurations described in this specification the scope of claims through amendment or divisional application. In addition, the applicant also discloses the configurations for solving the problems obtained by combining these independent problems and has the intention to obtain rights.

Means for Solving the Problems

[0006] (1) A microwave receiving means capable of receiving microwaves in a predetermined frequency range including the frequency of the radar wave for measuring the speed of the vehicle, a function for controlling the microwave receiving means, and a control means having a function for performing control for issuing an alarm when the microwave receiving means receives microwaves. The control means has a function for suppressing an alarm based on the radio wave received by the microwave receiving means based on at least any one of the limitation of the reception sensitivity of the microwave receiving means, the characteristics of the radio wave received by the microwave receiving means, the frequency of the radio wave received by the microwave receiving means, the characteristics of the position where the microwave receiving means receives the radio wave, and the input information from other means that are not the microwave receiving means. It is preferable to adopt a system.

[0007] In this way, it is possible to provide a user with a system that is superior to conventional systems. For example, when a vehicle equipped with this system approaches a new source of false alarms, which has recently become a problem, false alarms can be reduced compared to conventional systems. In the same frequency range as the microwaves emitted from the speed measurement system, there are microwaves emitted by vending machines to detect people, and microwaves emitted by vehicles to understand the relationship with other vehicles in front and behind, and there are growing problems with alarms being issued based on reception of these microwaves, but this system can further reduce such problems.

[0008] In particular, the limitation of the receiving sensitivity of the microwave receiving means, the characteristics of the radio waves received by the microwave receiving means, the frequency of the radio waves received by the microwave receiving means, the characteristics of the position of the microwave receiving means, and the suppression of the alarm based on input information from other means other than the microwave receiving means may be configured to detect at least one of the microwaves emitted by a vending machine or a vehicle to grasp the relationship with other vehicles in front and behind. Compared to conventional automatic doors, etc., vending machines are for unmanned sales, so they are installed in large numbers in suburban areas where speed enforcement is likely to be carried out. In addition, since a vehicle that emits microwaves to grasp the relationship with other vehicles in front and behind moves itself, it has an unprecedented characteristic that it is uncertain where it will be detected. In this way, problems such as a loud alarm being constantly sounded due to vending machines and such vehicles and the real alarm being unclear can be reduced. In addition, problems such as a constant alarm being constantly sounded due to vending machines and such vehicles and the setting being switched to not sounding an alarm and the real speed enforcement radar alarm not being sounded can also be solved. This makes it possible to properly issue genuine alarms while avoiding false alarms based on microwaves from vending machines or vehicles that interfere with intended use.

[0009] "Suppression" may, for example, be such that no alarm is given, but it is preferably done in a less recognizable manner compared to the case where the alarm is not suppressed. For example, when the alarm is configured to be given by sound, it is preferably made smaller compared to the case where the alarm is not suppressed. For example, when the alarm is configured to be given by screen display, the size of the alarm display should be made less conspicuous (for example, displayed smaller) compared to the case where the alarm is not suppressed. When the alarm is given by both sound and display, for example, when the alarm is not suppressed, the alarm is given by both sound and display, while when the alarm is suppressed, the sound alarm is not given and the display alarm is controlled to be given. As for the suppression of the alarm, it may be to reduce the sensitivity, cancel it, or change the alarm content. For example, it may be to notify that there is a false alarm source (such as a vending machine, etc.). "Suppression" may be controlled to reduce the sensitivity of the microwave receiving means. "Alarm" is preferably an alarm that notifies the detection of radar waves.

[0010] It is preferable to adopt a configuration in which a vending machine or the like and the original alarm target are identified in combination with another method. In particular, it is preferable to adopt a configuration in which identification is based on input information from means other than the microwave receiving means. "Other means" is preferably means for detecting a vehicle that emits microwaves in order to grasp the relationship between the vending machine or other vehicles in front and behind.

[0011] "Other means" may, for example, be provided with imaging means (such as a camera, etc.). As the input information from other means, for example, it is preferably video information captured by the vehicle, and in particular, it is preferably video information captured around the vehicle. As the control for suppressing the alarm based on the input information from other means that are not the microwave receiving means, for example, it is determined whether or not the video of the false alarm source exists in the video captured by the vehicle, and if it is determined that it exists, the alarm is preferably suppressed. The false alarm source is preferably a vehicle that emits microwaves in order to grasp the relationship between the vending machine or other vehicles in front and behind. In particular, it is preferably configured as described in (9) and (10) below.

[0012] As "other means", for example, it is preferable to provide radio wave detection means for detecting radio waves other than microwaves provided in a device that emits microwaves serving as a false alarm source (for example, a module for detecting WiFi and / or Bluetooth radio waves provided in a vending machine that emits microwaves). As input information from other means, for example, it is preferable to use the SSID of WiFi or Bluetooth beacon information. As control for suppressing an alarm based on input information from other means that is not microwave receiving means, for example, radio wave detection means for detecting radio waves other than microwaves provided in a device that emits microwaves serving as a false alarm source determines whether or not the radio wave has been detected, and when it is determined that the radio wave has been detected, it is preferable to suppress the alarm. As a false alarm source, it is preferable to use a vehicle that emits microwaves in order to grasp the relationship with a vending machine or other vehicles before and after. In particular, it is preferable to configure as described in (11) below.

[0013] (2) The control means has a function of suppressing an alarm based on the radio wave received by the microwave receiving means based on the characteristics of the radio wave received by the microwave receiving means. The characteristics of the radio wave are the modulation method of the radio wave. When the modulation method of the radio wave is not FSK modulation, it is preferable to have a function of suppressing an alarm based on the radio wave received by the microwave receiving means.

[0014] In this way, for example, an alarm due to unmodulated microwaves emitted by a vending machine can be suppressed. In this way, an alarm due to StepFM-modulated microwaves emitted by the host vehicle or other vehicles can be suppressed. As "when it is not FSK modulation", in particular, it is preferable to include at least either unmodulated or StepFM modulation, and particularly having both exhibits excellent effects.

[0015] (3) The control means has a function of suppressing an alarm based on the frequency of the radio wave received by the microwave receiving means. The predetermined frequency range includes the frequency of the microwaves emitted by the vending machine and the frequency of the microwaves emitted by other vehicles. When the frequency of the radio wave deviates from the frequency range emitted by a specific speed measurement device, it is preferable to have a function of suppressing the alarm.

[0016] In this way, it is possible to suppress an alarm based on microwaves that deviate from the frequency range of the speed measurement device. In particular, when the microwave receiving means or the control means has a function of scanning (sweeping) the reception frequency of the microwave receiving means within a predetermined frequency range, an excellent effect is exhibited. The "frequency of the radio wave" may be the frequency corresponding to the control value for scanning, or a frequency counter may be provided to measure the frequency of the received radio wave. Although it does not overlap with the frequency range of the speed measurement device, it is particularly useful for microwaves from a false alarm source within a predetermined frequency range.

[0017] (4) The control means has a function of suppressing an alarm based on the frequency of the radio wave received by the microwave receiving means and a function of scanning the reception frequency of the microwave receiving means. The scanning of the reception frequency scans a range in which the frequency of the radio wave includes the respective frequency ranges emitted by speed measurement devices of different models, and has a function of skipping and scanning a range that deviates from the frequency ranges of all models among the different models. In this way, it is possible to suppress an alarm based on microwaves that deviate from the frequency range of the speed measurement device.

[0018] (5) Storage means for storing the position information of the vending machine, and the control means has a function of acquiring the current position of the vehicle and a function of suppressing an alarm based on the characteristics of the position received by the microwave receiving means. As the characteristics of the position received by the microwave receiving means, it is preferable to have a function of suppressing an alarm when approaching the position of the vending machine stored in the storage means. In this way, it is possible to suppress a false alarm caused by microwaves emitted by the vending machine.

[0019] For example, since the location of the vending machine is publicly available on an app for promoting vending machine sales or the like, it is advisable to store the location and configure it to suppress an alarm when microwaves are received in a state of approaching the location.

[0020] (6) The control means has a function of acquiring the current position of the vehicle and a function of suppressing an alarm based on the limitation of the reception sensitivity of the microwave receiving means and the characteristics of the position received by the microwave receiving means. When the characteristics of the position received by the microwave receiving means approach the position of the vending machine stored in the storage means, it is preferable to adopt a configuration having a function of reducing the reception sensitivity as the limitation of the reception sensitivity. In this way, false alarms caused by microwaves emitted by vending machines can be suppressed.

[0021] For example, since the location of the vending machine is publicly available on an app for promoting vending machine sales, etc., its position is stored, and when microwaves are received in a state of approaching the position, the reception sensitivity of the microwaves is controlled to be reduced. It is preferable to adopt such a configuration. (7) The position of the vending machine is preferably the position of a vending machine installed along the road. In this way, it is possible to prevent the alarm from being suppressed as if approaching the position of a vending machine installed outside the roadside.

[0022] It is also possible to store only the positions of vending machines installed along the road in the storage means, or to control so that it is not considered "when approaching" in the case of a position that is not a roadside vending machine even when approaching the position of the vending machine. (8) It is preferable to perform control that causes a difference in the degree of suppression depending on whether the position of the vending machine is on the right side or the left side of the traveling direction of the vehicle. In this way, the suppression and alarm of the alarm can be performed more accurately.

[0023] For example, when controlling the sensitivity to receive radio waves from vending machines on both sides of the traveling direction of the road, suppression control is performed for vending machines on both sides, and when controlling the sensitivity to receive only radio waves from the vending machine on the left side, suppression control is performed at the position of the vending machine on the left side, and it is preferable to adopt a configuration in which suppression control is not performed at the position of the vending machine on the left side.

[0024] (9) The control means has a function of suppressing an alarm based on the radio wave received by the microwave receiving means based on input information from other means that are not the microwave receiving means. As the other means, an imaging means capable of photographing the appearance of a device that emits microwaves, which is a false alarm source, from the vehicle is provided. When there is something corresponding to the characteristics of the appearance of the device that emits microwaves, which is a pre-stored false alarm source, in the video imaged by the imaging means, it is advisable to perform control to suppress the alarm. In this way, it is possible to more accurately suppress and issue an alarm. As a false alarm source, it is advisable to include at least one of an automatic vending machine or at least one of the vehicles that emit microwaves in order to grasp the relationship with other vehicles in front and behind.

[0025] As the "appearance of the device that emits microwaves, which is a pre-stored false alarm source", it is advisable to include at least one of the appearance of a specific automatic vending machine that emits microwaves and the appearance of a specific vehicle that emits microwaves. The appearance of an automatic vending machine that does not emit microwaves other than the specific automatic vending machine and the appearance of a vehicle that does not emit microwaves other than the specific vehicle may be configured not to be detected from the video or not to suppress the alarm even if detected in the video.

[0026] As the "control to suppress the alarm when there is something corresponding to the characteristics of the appearance of the device that emits microwaves, which is a pre-stored false alarm source, in the video imaged by the imaging means", for example, when there is something corresponding to the characteristics of the appearance of the device that emits microwaves, which is a false alarm source, in the video, it is advisable not to issue an alarm or to reduce the sensitivity of the microwave receiving means. For example, when photographing an automatic vending machine with a camera, it is advisable not to issue an alarm and / or to reduce the sensitivity.

[0027] (10) The imaging means is installed so as to be able to image the front of the vehicle, and based on the position of what corresponds to the appearance features of a device that emits microwaves which are false alarm sources in the video imaged by the imaging means, it is preferable to adopt a configuration that changes the mode of suppressing the alarm. By doing so, it is possible to more accurately suppress and issue an alarm.

[0028] As the "configuration that changes the mode of suppressing the alarm based on the position of what corresponds to the appearance features of a device that emits microwaves which are false alarm sources in the video imaged by the imaging means", for example, when the position of what corresponds to the appearance features of a device that emits microwaves which are false alarm sources in the video imaged by the imaging means is a position corresponding to the front left side of the vehicle, it is preferable to adopt a configuration that suppresses more greatly than when it is a position corresponding to the front left side of the vehicle. As a configuration for suppressing more greatly, for example, it is preferable to significantly lower the sensitivity. The inventors have found that the demand for reducing false alarms is greater when there is a vending machine on the left than when there is a vending machine on the right closer to the vending machine, and by doing so, false alarms can be suppressed more effectively.

[0029] (11) The control means has a function of suppressing an alarm based on the radio wave received by the microwave receiving means based on input information from other means that are not the microwave receiving means. As the other means, it is provided with radio wave detection means for detecting radio waves other than the microwaves emitted by a device that emits microwaves which are false alarm sources. When the radio wave detection means detects radio waves other than the microwaves emitted by a device that emits microwaves which are false alarm sources, it is preferable to perform control to suppress the alarm. By doing so, it is possible to more accurately suppress and issue an alarm. As a false alarm source, it is preferable to include at least one of a vehicle that emits microwaves in order to grasp the relationship with a vending machine or other vehicles in front and behind in particular.

[0030] As the radio wave detection means, for example, it may be a module that detects the radio waves of WiFi and / or Bluetooth provided in a vending machine that emits microwaves.

[0031] "When the radio wave detection means detects radio waves other than the microwaves emitted by a device that emits microwaves which is a false alarm source, the control for suppressing the alarm" may be, for example, to store in advance a list of SSIDs emitted from the WiFi module provided in a vending machine that emits microwaves, and when microwaves are received and the WiFi radio waves of the SSIDs included in the list are also received, suppress the alarm.

[0032] "When the radio wave detection means detects radio waves other than the microwaves emitted by a device that emits microwaves which is a false alarm source, the control for suppressing the alarm" may be, for example, to store in advance a list of beacon information emitted from the Bluetooth module provided in a vending machine that emits microwaves, and when microwaves are received and the Bluetooth radio waves of the beacon information included in the list are also received, suppress the alarm. In particular, when there is a device of the same model that emits the same information by radio waves other than microwaves as a false alarm source, it is advisable to store the same information in a list or the like.

[0033] For example, the connection between a smartphone and a Coke ON vending machine is made wirelessly via Bluetooth. An Internet connection is required for the stamp granting process, and in that case, the vending machine communicates with the Internet via the customer's smartphone. It may be used as the radio wave detection means for detecting radio waves for such purposes. When receiving the unique information (such as the vending machine ID) emitted from an object other than the alarm target included in the radio waves detected by the radio wave detection means, the alarm may be suppressed. For example, when the unique information is received, even if the above radio waves are received, do not alarm and / or reduce the sensitivity. As for the suppression of the alarm, it may be to reduce the sensitivity, cancel, or change the alarm content. For example, it may be to notify the presence of the vending machine.

[0034] (12) The control means has a function of suppressing an alarm based on the characteristics of the radio wave received by the microwave receiving means, and at least one of the microwave receiving means or the control means includes an SDR (software-defined radio). The control means determines whether to suppress the alarm based on the feature information of the waterfall image generated by the SDR as the identification of the radio wave and the feature information of the waterfall image of the radar wave for measuring the speed of the vehicle when there is no false alarm source stored in advance. It is preferable to adopt such a configuration. In this way, it is possible to more accurately suppress and issue an alarm.

[0035] For the waterfall image, the frequency of the microwave received by the microwave receiving means is set on one axis (for example, the lower limit frequency of the frequency band is at one end of one axis, and the upper limit frequency of the frequency band is at the other end of one axis), the time axis is set on the other axis, and a predetermined signal characteristic (for example, signal intensity) at that time and at that frequency is drawn as a predetermined color (when relatively weak, it is the first color (for example, blue), when relatively strong, it is a second color different from the first color (for example, red), and a gradation is made between the two). At this time, it is preferable to set the relationship between each color and the corresponding signal characteristic (for example, signal intensity) so as to obtain a wide dynamic range. It is preferable to set the relationship.

[0036] "Feature information of the waterfall image of the radar wave for measuring the vehicle speed when there is no false alarm source memorized in advance" may be a learned model obtained through machine learning, with the waterfall image of the radar wave for measuring the vehicle speed when there is no false alarm source within a predetermined time range as the alarm target and the waterfall image when there is a false alarm source within the predetermined time range as the non-alarm target. Machine learning is preferably performed using deep learning (DL), particularly preferably using CNN, and the learned model may be a model learned through deep learning (particularly, for example, a model configured with CNN). For example, it may be configured with SDR waterfall + DL (such as CNN).

[0037] "Configuration for determining whether to suppress the alarm based on the feature information of the waterfall image generated by the SDR and the feature information of the waterfall image of the radar wave for measuring the vehicle speed when there is no false alarm source memorized in advance" may be such that when microwave is received, using a learned model obtained through machine learning, with the waterfall image of the radar wave for measuring the vehicle speed when there is no false alarm source within a predetermined time range as the alarm target and the waterfall image when there is a false alarm source within the predetermined time range as the non-alarm target, if the result of inference indicates that it is determined to be the alarm target (for example, when the probability of being the alarm target is equal to or greater than a predetermined threshold), an alarm is issued without suppressing the alarm, and if the result of the inference indicates that it is determined to be the non-alarm target (for example, when the probability of being the non-alarm target is equal to or greater than a predetermined threshold), the alarm is suppressed. (13) It is preferably a program for causing a computer to realize the functions of the control means of the system according to any one of (1) to (12).

[0038] The inventions described in (1) to (12) above can be arbitrarily combined. For example, at least a part of the configuration of at least one of the inventions from (2) onwards may be added to all or part of the configuration of the invention described in (1). In particular, it is preferable to use an invention in which at least a part of the configuration of at least one of the inventions from (2) onwards is added to the invention described in (1). Also, any configuration may be extracted from the inventions described in (1) to (12), and the extracted configurations may be combined. The applicant of this 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 that are not these cases or times. Also, the parts described in a certain 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 them.

Effects of the Invention

[0039] According to the present invention, a system or the like superior to the conventional ones can be provided.

[0040] Note that the effects of the invention of this application are not limited to this, and the effects exhibited by the parts of the configurations disclosed in this specification, drawings, etc. are also disclosed, and the applicant also intends to obtain rights for the configurations that exhibit such effects by means of divisional applications, amendments, etc. For example, in this specification, parts described as "can ~" or "is possible ~" are descriptions that clearly indicate the exhibited effects, and even if there is no description such as "can ~" or "is possible ~", there are parts that indicate the effects. Also, even if there is no such description, there are effects grasped by the said configuration.

Brief Description of the Drawings

[0041]

Figure 1

Figure 2

Figure 3

Figure 4

Embodiments for Carrying Out the Invention

[0042] Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. Note that the embodiments shown below are one of the embodiments for providing the present invention, and the content of the present invention is not limitedly interpreted based on the following description.

[0043] FIG. 1 shows an external view of a preferred embodiment of a navigation device equipped with a radar detection function on which the system according to the present invention is mounted, FIG. 2 shows its functional block diagram, and FIG. 3 shows an example of a display form. As shown in FIG. 1, the navigation device includes a portable device main body 2 and a cradle 3 as an attachment member for holding it. By attaching the device main body 2 to the cradle 3, it functions as an in-vehicle navigation device, and by removing it from the cradle 3, it functions as a portable navigation device (PND) driven by a built-in battery. Of course, it is not necessary to adopt a configuration in which the device main body 2 can be easily attached to and detached from the cradle 3 in this way.

[0044] The device main body 2 is detachably attached to the cradle 3. The device main body 2 includes a flat rectangular case main body 4. On the front surface of the case main body 4, a display unit 5 is arranged, and on the display unit 5, a touch panel 8 for detecting which part of the display unit 5 has been touched is provided, and warning lamps 9 are provided on both sides of the front surface. The cradle 3 includes a cradle main body 6 for holding the device main body 2 and a pedestal portion 7 for instructing the cradle main body 6 in an arbitrary posture at a predetermined position (such as a dashboard) in the vehicle interior. The pedestal portion 7 is adsorbed and fixed on the dashboard or the like by a suction cup provided on the bottom surface. The pedestal portion 7 and the cradle main body 6 are connected via a connection mechanism such as a ball joint so as to be rotatable within a predetermined angle range. Since it is a ball joint, the pedestal portion 7 and the cradle main body 6 can rotate relative to each other within an arbitrary angle range in the three-dimensional direction and hold their positions at an arbitrary angular position due to the frictional resistance at the joint portion. Therefore, the device main body 2 attached to the cradle main body 6 can also be arranged in an arbitrary posture on the dashboard.

[0045] Furthermore, on one side surface of the case main body 4, an SD memory card slot portion 21 is provided, and an SD memory card 22 in which map data or the like is recorded can be inserted into the SD memory card slot portion 21. Also, on the side surface of the case main body 4 provided with the SD memory card slot portion 21, a DC jack 10 is provided. The DC jack 10 is for connecting a cigar plug cord (not shown), and can receive power supply by connecting to the cigar socket of the vehicle via the cigar plug cord.

[0046] On one side, on the side opposite to the SD memory card slot part 21, a power switch and a USB connection part 23 are provided. If one end of a USB cable is inserted into the connector of this USB connection part 23 and the other end is connected to a personal computer, it is possible to perform operations such as version upgrading of software applications. Also, in the normal operation, by inserting a USB cable for connecting to the drive recorder 26 into the connector of this USB connection part 23, the control unit 18 can acquire the video data captured by the drive recorder 26. The drive recorder 26 may be installed, for example, on the upper part of the windshield with its camera directed so that the front is the shooting area.

[0047] Inside the case body 4, the following devices and components are arranged. Inside the back side of the case body 4, a microwave receiver 11 is arranged. The microwave receiver 11 receives microwaves in a predetermined frequency band ★ including the frequency of the radar wave for measuring the vehicle speed. When it receives microwaves within the set predetermined frequency range, it detects the signal level of the received microwaves. Specifically, it uses the RSSI voltage corresponding to the electric field strength, which is the signal level. The above-mentioned predetermined frequency band is, for example, a frequency band including the frequency of the microwaves emitted from the vehicle speed measuring device.

[0048] Also, inside the upper side of the case body 4, a GPS receiver 12 for receiving GPS signals and obtaining the current position is arranged. Inside the front side of the case body 4, an infrared communication device 14 is arranged. The infrared communication device 14 performs data transmission and reception with a communication device having a built-in infrared communication device such as a mobile phone 15. Further, a speaker 20 is also built into the case body 4.

[0049] Furthermore, the device of this embodiment includes a wireless receiver 13 and a remote control receiver 16. The wireless receiver 13 receives wireless signals of a predetermined frequency that fly in. The remote control receiver 16 conducts data communication with a remote control (portable device: slave unit) 17 and performs various settings for the device. The wireless receiver 13 receives wireless signals of a predetermined frequency band that fly in. This predetermined frequency is, for example, the frequency band of the wireless used when an emergency vehicle notifies its vehicle position to a base station.

[0050] Furthermore, the device of this embodiment includes a Bluetooth module 24 for performing Bluetooth communication by transmitting and receiving Bluetooth wireless signals, and a WiFi module 25 for performing WiFi communication by transmitting and receiving WiFi wireless signals.

[0051] The navigation device of this embodiment is connected via a connection cable to a drive recorder installed at the upper part of the windshield to capture the front of the vehicle, and the control unit 18 has a function of performing control to suppress an alarm based on the video information captured by the drive recorder.

[0052] In addition to the navigation function, the navigation device of this embodiment also has a target detection function as a target detection device for detecting targets such as a vehicle speed measurement device and other traffic monitoring points. All functions including these navigation functions and target detection functions are stored on the EEPROM of the control unit 18 as programs executed by a computer possessed by the control unit 18, and are realized by the computer possessed by the control unit 18 executing these programs.

[0053] That is, the control unit 18 controls the above various input devices (GPS receiver 12, microwave receiver 11, wireless receiver 13, touch panel 8, remote control receiver 16, etc.), executes predetermined processing based on the information input from the above various input devices, and controls output devices (display unit 5, alarm lamp 9, speaker 20, etc.) to output predetermined information, alarms, and messages. This predetermined processing is for executing the above various functions and accesses the database 19 and the SD memory card 22 as necessary.

[0054] Here, the database 19 can be realized by a non-volatile memory (such as an EEPROM) inside the microcomputer of the control unit 18 or externally attached to the microcomputer. In the database 19, at the time of shipment, a list of certain target objects, maps, and other information necessary for target object detection and navigation, a list of the location information of the vending machines, a list of the Bluetooth beacon information emitted by the vending machines, and a list of the SSID information of the WiFi emitted by the vending machines are registered. Subsequently added data, etc. can be updated through predetermined processing. The processing for this update can be performed, for example, by mounting an SD memory card storing additional data in the SD memory card slot 21 and transferring the data from the SD memory card to the database 19. Also, this data update can be performed by using the infrared communication device 7 or by using a personal computer or other external devices connected via the USB terminal 23.

[0055] The control unit 18 for realizing the target object detection function operates as follows. That is, when the microwave receiver 11 receives a microwave, the control unit 18 performs control to output a predetermined alarm (microwave alarm). Examples of this alarm include the output of a buzzer using the speaker 20 or a voice for notifying the reception of a microwave (detection by a vehicle speed measuring device, etc.), and the output of a message in characters or images using the display unit 5.

[0056] Also, when the wireless receiver 13 receives a desired wireless signal, the control unit 18 outputs a predetermined alarm (wireless alarm). Examples of this alarm include the output of a buzzer using the speaker 20 or a voice for notifying the reception of a microwave (approach of an emergency vehicle, etc.), and the output of a message in characters or images using the display unit 5. It is preferable that the form of the alarm associated with the reception of this wireless signal is different from the form of the alarm associated with the reception of the above-mentioned microwave.

[0057] Furthermore, when the current position detected by the GPS receiver 12 and the position of a target such as a traffic monitoring point stored in the database 19 are in a predetermined positional relationship, the control unit 18 outputs a predetermined warning (GPS warning). Therefore, the database 19 stores information about the target to be detected (position information of the target including longitude and latitude, type information of the target, etc.), traffic safety information for driving safely with more caution such as accident-prone areas and traffic control information, landmarks, and various types of information useful for driving. Each piece of information is registered by associating the specific type of information (type of target, type of traffic control, accident-prone area, name of landmark, etc.) with the position information.

[0058] The distance to the target when issuing a warning can be changed for each type of target. As warning modes, similar to the above, there are warnings by voice using the speaker 20 and warnings using the display unit 5. FIG. 3 shows an example of a warning by the display unit 5. In the present embodiment, since the present device is a navigation device and has map data, as a basic screen, the control unit 18 has a function of reading the road network information around the current position and displaying the map around the current position on the display unit 5. Then, a warning screen 70 is displayed on the display unit 5 overlaid on the currently displayed screen (here, the map around the current position). FIG. 3 shows an example of the display of the warning screen 70 when the distance between the current position and an LH system, which is a type of speed measurement device and one of the traffic monitoring points, reaches 500 m while the map 50 is being displayed. Furthermore, a process is performed to output from the speaker 20 a warning voice indicating the warning type and the distance, such as "There is an LH system 500 m ahead".

[0059] On one hand, to realize the navigation function, the control unit 18 operates as follows. First, the database 19 stores road network information for navigation. The information for navigation stored in this database 19 may store all information about the whole country at the time of shipment, or map data, etc. may be provided by storing them in the SD memory card 22 for each region. The user may prepare an SD memory card storing necessary map data, etc. and mount it in the SD memory card slot 21 for use. Note that the map data, etc. stored in the SD memory card 22 may be transferred to and stored in the database 19, or the control unit 18 may access the SD memory card 22, read from it, and use it.

[0060] The control unit 18 has a function of reading road network information around the current position from the database 19 and displaying a map around the current position on the display unit 5. This control unit 18 can search for a route from one position to another using this road network information. In addition, the database 19 includes a telephone number database that stores telephone numbers in association with location information and names of residences, companies, facilities, etc. of those telephone numbers, and an address database that stores addresses in association with location information of those addresses. Also, in the database 19, location information of traffic monitoring points such as speed measurement devices is stored together with their types. In addition, the control unit 18 has a function of performing processing of a general navigation device.

[0061] For example, the display unit 5 displays a map around the current position at any time and displays a destination setting button. When the control unit 18 detects a press at a position corresponding to the display position of the destination setting button by the touch panel 8, it performs a destination setting process. In the destination setting process, a destination setting menu is displayed on the display unit 5 to prompt the user to select a destination setting method. The destination setting menu has a phone number search button and an address search button for prompting the user to select a destination setting method. When it is detected that the phone number search button has been pressed, a phone number input screen is displayed, and position information corresponding to the input phone number is acquired from the database 19. When it is detected that the address search button has been pressed, an address selection input screen is displayed, and position information corresponding to the input address is acquired from the database 19. Then, the acquired position information is set as the destination position information, and a recommended route from the current position to the destination is obtained based on the road network information stored in the database 19. The road network information has the same data as an existing car navigation system. For example, it includes a plurality of road links connecting points at branch points and the like, and the road links include information such as its ID, whether it is one-way, the latitude and longitude coordinates (each node) of the start point and the end point, and a list of the IDs of the road links connected to the start point and the end point respectively, and the type of the road such as whether the road link is an expressway or an ordinary road. As a method for calculating the recommended route, for example, a known method such as Dijkstra's method can be used.

[0062] Also, for example, route guidance is performed based on the recommended route. That is, it has a route guidance function for guiding the direction of the recommended route when the current position acquired by the GPS receiver 12 approaches a branch point on the recommended route within a predetermined distance. For example, when the recommended route turns right 300 m ahead from the current position, the voice "Turn right 300 m ahead" is output from the speaker 20, and a right arrow is displayed on the map.

[0063] Furthermore, the control unit 18 of this navigation device has a function of suppressing an alarm based on the microwave received by the microwave receiver 11, based on at least any one of the following: limitation of the reception sensitivity of the microwave receiver 11, characteristics of the radio wave received by the microwave receiver 11, frequency of the radio wave received by the microwave receiver 11, characteristics of the position where the microwave receiver 11 received the wave, video data received from the drive recorder 26 connected via the USB connection unit 23, Bluetooth beacon signal emitted by the vending machine received by the Bluetooth module 24, and SSID information of the WiFi emitted by the vending machine received by the WiFi module 25.

[0064] Which suppression to perform is set on the microwave reception alarm function setting screen shown in FIG. 4. The microwave alarm suppression function setting screen in FIG. 4 is displayed when a continuous touch for 2 seconds on a predetermined area on the map screen is detected from the touch panel 8. The predetermined area corresponds to the lower left one of the areas obtained by dividing the map screen into three equal parts vertically and four equal parts horizontally. Note that the map screen is the default screen displayed when the startup process of this device is completed. Also, when there is no operation for 5 minutes, when the back button is pressed, or when the setting completion button is pressed on various setting screens, the screen transitions to the state of displaying the map screen.

[0065] As shown in Fig. 4, the microwave reception warning function setting screen has a string display of "Microwave Reception Warning Function Setting Screen", which is the title of this setting screen, at the top. Below it, there is a title string display of "Warning Suppression Target Items", which is a setting column for the target items of warning suppression control, and seven check boxes and their item name strings described later. Further below, there is a title of "Warning Suppression Method", which is a setting column for the warning suppression method, and three radio buttons and their item name strings described later. Below that, on the left, there is a cancel button with the string "Cancel" displayed, and on the right, there is a setting button with the string "Settings" displayed. When switching from the map screen to the microwave reception warning function setting screen, the current content of the microwave reception warning function settings is read from the database 19 and reflected in the display states of the check boxes and radio buttons. After the user changes the states of the check boxes or radio buttons, when it is detected from the touch panel 8 that the cancel button has been pressed, the display returns to the map screen with the previous settings without reflecting the changes in the states of the check boxes or radio buttons. When it is detected from the touch panel 8 that the setting button has been pressed, the states of the check boxes and radio buttons at the time of detecting the touch on the setting button are stored in the database 19 as new settings and used for the warning suppression process. That is, when a check box is checked, the suppression process for the items stored in the database 19 is performed multitaskingly during the microwave warning process. When none of the items are checked, when the microwave receiver 11 receives microwaves during the warning process, a microwave warning is issued without performing the suppression process.

[0066] The seven items of the "Alarm Suppression Target Items" are, in order from the top, "Suppression by Limiting the Reception Sensitivity of Microwaves", "Suppression by the Characteristics of the Radio Waves Received by Microwaves", "Suppression by the Frequency of the Radio Waves Received by Microwaves", "Suppression by the Characteristics of the Position where Microwaves are Received", "Suppression by Video Data Received from a Drive Recorder", "Suppression by the Bluetooth Beacon Signal Emitted by a Vending Machine", and "Suppression by the WiFi SSID Information Emitted by a Vending Machine", each with the display of the item name and a checkbox that can be toggled on and off to display a check mark on the left side of each item name.

[0067] As the three items of the "Alarm Suppression Method", in order from the top, there are the items of "Do not give voice alarms during suppression", "Do not give all alarms during suppression", and "Do not give all alarms during suppression but display the suppression items", and there are radio buttons that can select any one of these three items. In the following parts where "suppress" and the suppression process are described, according to the information in the database 19 that stores the setting status of this radio button, it is determined which of these three items to perform suppression on and the suppression described in that item is performed. For example, when the item "Do not give voice alarms during suppression" is selected, as the suppression process, a process of muting the voice output to the speaker 20 is performed. As a result, even if a signal in which the microwave receiver 11 is receiving microwaves is input to the control unit 18, no voice alarm for the microwave alarm is given. Thereby, only the alarm on the screen is given. When the item "Do not give all alarms during suppression" is selected, as the suppression process, a process of muting the voice output to the speaker 20 and a process of canceling the display of the alarm screen on the display unit 5 are performed. As a result, for example, if the reception of microwaves starts after the suppression process starts and ends before the suppression process ends, no alarm is given during this microwave reception period. After the microwave is received, if the suppression process starts during the reception, an alarm is given once, but the alarm stops when the suppression process starts. When the item "Do not give all alarms during suppression but display the suppression items" is selected, as the suppression process, a process of muting the voice output to the speaker 20, a process of canceling the display of the alarm screen on the display unit 5, and a process of superimposing and displaying a character string with "In progress" added to the end of the item name for which suppression was performed on the map screen are performed. For example, when performing the suppression process of "Suppression by video data received from the drive recorder", the character string "Suppression by video data received from the drive recorder is in progress" is displayed in front of the map.If multiple items out of the 7 check boxes are checked, the suppression timings by the suppression process for each item may be different. However, since each suppression process is performed as a multitask, when the suppression in each suppression process is being executed, the content of the suppression is displayed for each. Therefore, the display positions of the strings at the time of suppression in each suppression process are determined in advance at different positions. In the present embodiment, the display position and display content of the 7 item names in FIG. 4 are overlaid and displayed in the frontmost position with priority over the position and display content on the map in FIG. 3 and the warning screen. However, for example, an alarm suppression content display position adjustment process may be performed to adjust the display position of the currently suppressed alarm within the warning screen illustrated in FIG. 3 and display it.

[0068] (1) When it is stored in the database 19 that there is a check in the item of "suppression by limiting the reception sensitivity of microwaves" on the microwave reception alarm function setting screen of FIG. 4, the control unit 18 sends a signal to the microwave receiver 11 to lower the reception sensitivity level compared to the case where there is no check in the item. When the microwave receiver 11 receives this signal, it reduces the reception sensitivity.

[0069] (2) When it is stored in the database 19 that there is a check in the item of "suppression by the characteristics of the radio wave received by the microwave" on the microwave reception alarm function setting screen of FIG. 4, the control unit 18 determines whether the modulation method of the reception signal input from the microwave receiver 11 to the control unit 18 is FSK modulation. If it is FSK modulation, the microwave alarm is not suppressed. If it is not FSK modulation, the microwave alarm is suppressed. Whether it is FSK modulation or not can be determined by a known configuration such as the configuration disclosed in JP-A-2017-96728.

[0070] In this way, for example, an alarm caused by an unmodulated microwave emitted from a vending machine can be suppressed, and an alarm caused by a StepFM modulated microwave emitted from the own vehicle or another vehicle can also be suppressed.

[0071] (3) The control unit 18 has a function of sweep - controlling the reception frequency of the microwave receiver 11. The frequency range to be swept is set to include the frequency of the microwave emitted by the vending machine and the frequency of the microwave emitted by other vehicles. When it is stored in the database 19 that there is a check in the item of "suppression at the frequency of the received radio wave of the microwave" on the microwave reception alarm function setting screen of FIG. 4, when the reception frequency set by the control unit 18 for the microwave receiver 11 deviates from the frequency range of the specific speed measurement device previously stored in the database 19, the alarm is suppressed. That is, when the microwave is received within the frequency range p - q of the specific speed measurement device located inside the sweep frequency range a - b, the alarm is not suppressed, and when the microwave is received in the ranges a - p and q - b, the alarm is suppressed.

[0072] In this way, the alarm based on the microwave deviating from the frequency range of the speed measurement device can be suppressed. In particular, when the microwave receiver 11 or the control unit 18 has a function of scanning (sweeping) the reception frequency of the microwave receiver 11 within a predetermined frequency range as in this embodiment, an excellent effect is exhibited. That is, the sweep range remains unchanged, and the alarm can be easily suppressed without changing various timing controls and the like. In this way, it is particularly useful for microwaves from false alarm sources that do not overlap with the frequency range of the specific speed measurement device but are within the predetermined frequency range. Note that the reception frequency may be the frequency corresponding to the control value for scanning, or a frequency counter may be provided to separately measure the frequency of the received radio wave. Also, the scanning (sweeping) of the reception frequency may have a function of scanning the range including the respective frequency ranges of different models of speed measurement devices and skipping the ranges that deviate from the frequency ranges of all models among those different models. In this way, the alarm based on the microwave deviating from the frequency range of the speed measurement device can be suppressed.

[0073] (4) When the control unit 18 stores in the database 19 that there is a check in the item of "suppression based on the characteristics of the position where the microwave is received" on the microwave reception alarm function setting screen in FIG. 4, if the current position of the vehicle acquired from the GPS receiver 12 approaches any position in the list of the vending machine position information stored in the database 19, the alarm is suppressed.

[0074] In this way, false alarms caused by microwaves emitted by the vending machine can be suppressed. For example, since the location of the vending machine is publicly available on an app for promoting vending machine sales or the like, the position is memorized, and when microwaves are received in a state of approaching the position, the alarm is suppressed.

[0075] Furthermore, the control unit 18 may perform control to lower the reception sensitivity of the microwave receiver 11 during this suppression. In this way, false alarms caused by microwaves emitted by the vending machine can be suppressed. Note that the control to lower the reception sensitivity of the microwave receiver 11 in this suppression may perform control to further lower the reception sensitivity of the microwave receiver 11 in addition to the suppression when it is stored that there is a check in the item of "suppression by limiting the reception sensitivity of the microwave".

[0076] Incidentally, since the location of the vending machine is publicly available on an app for promoting vending machine sales or the like, it is advisable to store the location in memory and control it such that when the microwave is received in a state of approaching the location, the reception sensitivity of the microwave is decreased. Note that the location of the vending machine stored in the database 19 should only be the location of vending machines installed along the road, and other locations should not be included. By doing so, it is possible to prevent the situation where the alarm is suppressed even when approaching the location of a vending machine installed outside the road. Note that the database 19 stores the location of the vending machine regardless of whether it is installed along the road, and when approaching the location of the vending machine, if it is not a location of a vending machine along the road such as the proximity relationship with the location information of the road network data is far, it may be controlled so as not to be regarded as "when approaching".

[0077] Furthermore, control may be performed so as to vary the degree of suppression depending on whether the location of the vending machine stored in the database 19 is on the right side or the left side of the traveling direction of the vehicle. By doing so, it is possible to more accurately suppress and issue an alarm. For example, when controlling the sensitivity to receive radio waves from vending machines on both sides of the traveling direction of the road, suppression control is performed for vending machines on both sides, and when controlling the sensitivity to receive only radio waves from the vending machine on the left side, suppression control is performed at the location of the vending machine on the left side, and it is advisable to adopt a configuration such that suppression control is not performed at the location of the vending machine on the left side.

[0078] (5) When it is stored in the database 19 that there is a check in the item of "suppression by video data received from the drive recorder" on the microwave reception alarm function setting screen of FIG. 4, the control unit 18 receives the video data transmitted from the drive recorder 26 via the USB connection unit 23, and when it is determined that there is something corresponding to the appearance characteristics of the device that emits the microwave serving as a false alarm source included in the received video data, the microwave alarm is suppressed.

[0079] As false alarm sources, characteristic information of a vehicle that emits microwaves (a pre-trained model learned using a drive recorder video including the corresponding vending machine and vehicle by CNN) for grasping the relationship between vending machines and other vehicles before and after is stored in database 19. The pre-trained model is read onto the RAM, the received video data is input into the pre-trained model for inference, and as the inference result, the probability of the existence of the vending machine and the probability of the existence of the vehicle are obtained for the video data. When the probability of the existence of the vending machine is equal to or higher than a predetermined value (for example, 80% or higher), it is determined that there is something corresponding to the characteristics of the appearance of the vending machine, and when the probability corresponding to the vehicle is equal to or higher than a predetermined value (for example, 80% or higher), it is determined that there is something corresponding to the characteristics of the appearance of the vehicle.

[0080] In addition, when the position of what corresponds to the characteristics of the appearance of the device that emits microwaves, which is a false alarm source in the video captured by the drive recorder 26, is a position corresponding to the front left side of the vehicle, the control unit 18 may suppress it more greatly than when it is a position corresponding to the front left side of the vehicle. As a configuration for greatly suppressing, for example, the sensitivity may be lowered. The inventors have found that the demand for reducing false alarms is greater when there is a vending machine on the left than when there is a vending machine on the right side closer to the vending machine. In this way, false alarms can be suppressed more effectively.

[0081] (6) When it is stored in the database 19 that there is a check in the item of "suppression by Bluetooth beacon signal emitted by vending machine" on the microwave reception alarm function setting screen of FIG. 4, when the Bluetooth beacon signal is received by the Bluetooth module 24, the control unit 18 determines whether the Bluetooth beacon signal corresponds to any of the lists pre-stored in the database 19. If it corresponds, control for suppressing the microwave alarm is performed.

[0082] When the control unit 18 stores in the database 19 that there is a check in the item of "suppression by the SSID information of the WiFi emitted by the vending machine" on the microwave reception alarm function setting screen of FIG. 4, when the SSID is received by the WiFi module 25, it determines whether the SSID corresponds to any of the lists pre-stored in the database 19, and if it corresponds, it performs control to suppress the microwave alarm. By doing as described in (6) and (7) above, it is possible to more accurately suppress and issue an alarm.

[0083] Note that the connection between the purchaser's smartphone and the vending machine in the beverage vending machine is performed wirelessly via Bluetooth. An Internet connection is required for the process of giving a stamp to the purchaser of the beverage in the vending machine using the smartphone app. At this time, the vending machine performs Internet communication via the customer's smartphone. It is still better to determine whether it is a Bluetooth signal for such a purpose. Note that the control unit 18 may suppress the alarm when it determines that it has received unique information (such as a unique ID, etc.) emitted from the vending machine or the vehicle.

[0084] In the above-described embodiment, an example has been described in which the microwave receiver 11 used in a conventionally sold radar detector is used. However, the microwave receiver 11 and the control unit 18 may be configured as a software radio. For example, the microwave receiver 11 may be configured to output a so-called IQ signal (for example, the microwave receiver 11 may use a microwave receiver similar to the receiving circuit described in, for example, Japanese Patent Application Laid-Open No. 2019-61643). The control unit 18 captures this IQ signal as IQ data using an AD converter provided in the control unit 18, and the control unit 18 generates a so-called waterfall image from the input IQ data in the SDR processing. Then, based on the feature information of this waterfall image and the feature information of the waterfall image of the radar wave for measuring the vehicle speed when there is no false alarm source previously stored in the database 19, it is determined whether to suppress the alarm. The waterfall image has the frequency of the microwave received by the microwave receiver 11 on one axis (for example, the lower limit frequency of the frequency band at one end of one axis and the upper limit frequency of the frequency band at the other end of one axis), and the time axis on the other axis, and draws a predetermined signal characteristic (for example, signal strength) at that time at that frequency as a predetermined color (when relatively weak, it is the first color (for example, blue), and when relatively strong, it is a second color different from the first color (for example, red), and gradates between the two). At this time, the relationship between each color and the corresponding signal characteristic (for example, signal strength) is set so that a wide dynamic range can be obtained.

[0085] As for the feature information of the waterfall image of the radar wave for measuring the vehicle speed when there is no pre-stored false alarm source, it is advisable to use a trained model obtained through machine learning with the waterfall image of the radar wave for measuring the vehicle speed when there is no false alarm source within a predetermined time range as the alarm target and the waterfall image when there is a false alarm source within the predetermined time range as the non-alarm target. Machine learning is preferably performed using deep learning (DL), particularly preferably using CNN, and the trained model is preferably a model learned by deep learning (particularly, for example, a model configured with CNN). For example, it may be configured with SDR waterfall + DL (such as CNN).

[0086] Regarding the configuration for determining whether to suppress the alarm based on the feature information of the waterfall image generated by SDR and the feature information of the waterfall image of the radar wave for measuring the vehicle speed when there is no pre-stored false alarm source, when receiving microwave, with the waterfall image of the radar wave for measuring the vehicle speed when there is no false alarm source within a predetermined time range as the alarm target and the waterfall image when there is a false alarm source within the predetermined time range as the non-alarm target, if the result inferred using the trained model obtained through machine learning determines that it is the alarm target (for example, when the probability of being the alarm target is equal to or greater than a predetermined threshold), an alarm is issued without suppressing the alarm, and if the inferred result determines that it is the non-alarm target (for example, when the probability of being the non-alarm target is equal to or greater than a predetermined threshold), the alarm is suppressed. For example, this suppression process may be the same as the process described in (5) above. (9) Summary

[0087] According to the above-described embodiment, it is possible to provide a user with a radar detection function that is superior to the conventional one. For example, when a vehicle equipped with the device approaches a vending machine that emits microwaves, which are a new source of false alarms that have recently become a problem, or a vehicle that emits microwaves to grasp the relationship with other vehicles in front and behind, it is possible to reduce false alarms compared to the conventional one. In the same frequency range as the microwaves emitted from the speed measurement system, there are microwaves emitted by vending machines for human detection, microwaves emitted by vehicles to grasp the relationship with other vehicles in front and behind, etc., and there are growing problems such as alarms being issued based on reception of these, but it is possible to further reduce such problems.

[0088] In particular, the limitation of the receiving sensitivity of the microwave receiver 11, the characteristics of the radio waves received by the microwave receiver 11, the frequency of the radio waves received by the microwave receiver 11, the characteristics of the position where the microwave receiver 11 receives the signal, and the suppression of the alarm based on the input information from the drive recorder 26, the Bluetooth module 24, and the WiFi module 25, which are not the microwave receiver 11, are performed in order to detect microwaves emitted by a vending machine or a vehicle to grasp the relationship with other vehicles in front and behind. Compared to conventional automatic doors, etc., vending machines are for unmanned sales, so they are installed in large numbers in suburban areas where speed enforcement is likely to be carried out. In addition, since a vehicle that emits microwaves to grasp the relationship with other vehicles in front and behind moves itself, it has an unconventional characteristic that it is uncertain where it will be detected. If configured as in this embodiment, the problem of a noisy alarm being heard because of a vending machine or such a vehicle, and the original alarm being unclear, can be reduced. In addition, the problem of a vending machine or such a vehicle always sounding an alarm, switching to a setting that does not sound an alarm, and the original speed enforcement radar alarm being not sounded, can also be solved. This makes it possible to avoid false alarms based on microwaves from vending machines or vehicles that interfere with intended use, while still issuing intended alarms.

[0089] According to this embodiment, it can be set not to give an alarm, or it can be set to give an alarm in a less recognizable manner compared to the case where alarms such as only on-screen alarms without voice alarms are not suppressed.

[0090] In addition, when the alarm is configured to be given by sound, the suppression of the alarm may be made smaller compared to the case where the alarm is not suppressed. For example, when the alarm is configured to be given by screen display, the size of the alarm display may be made less conspicuous (for example, displayed smaller) compared to the case where the alarm is not suppressed. Sound and

[0091] As for the suppression of the alarm, as in this embodiment, it may be possible to reduce the sensitivity, cancel it, or change the content of the alarm. For example, it may be possible to notify by displaying on the display unit 5 that there is a false alarm source (such as a vending machine). It is preferable to have a configuration capable of identifying the type of false alarm source as in (5), (6), and (7) of the embodiment, and to further display the identified type of false alarm source (such as "detecting a vending machine as a false alarm source", "detecting a vehicle as a false alarm source") on the display unit 5.

[0092] 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 the current configuration is not specified in the claims, the configuration disclosed in this specification has the intention of being the scope of the claims in the future.

[0093] 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. Further, any constituent element of each embodiment or modification example may be arbitrarily combined with any constituent element described in the means for solving the invention or a constituent element embodying any constituent element described in the means for solving the invention. Regarding these, we also have the intention of obtaining rights in the amendment or divisional application of the present application. Even if there are descriptions such as "in the case of ~" or "when ~", the description is not limited to such a case or time. We also disclose configurations that are not these cases or times and have the intention of obtaining rights. Also, the descriptions with an order are not limited to this order. We also disclose configurations in which some parts are deleted or the order is changed and have the intention of obtaining rights.

[0094] In addition, due to the change to a design registration application, we have the intention of obtaining rights for the overall design or partial design. Although the drawings depict the entire device in solid lines, the drawings include not only the overall design but also partial designs claimed for a part of the device. For example, not only can a part of the members of the device be a partial design, but the drawings also include a partial design of a part of the device regardless of the members. As a part of the device, it may be a part of the members of the device or a part of that member. Regarding the overall design, of course, we have the intention of obtaining rights for a partial design in which an arbitrary part of the solid-line part of the drawing is changed to a broken line part. Also, regarding the modules, members, parts, etc. inside the housing of the device, those shown in the drawings are all independently subject to transactions, and similarly, we have the intention of making a change to the design registration application to obtain rights.

Explanation of Reference Signs

[0095] 2 Device main body 3 Cradle 4 Case main body 5 Display unit 6 Cradle main body 7 Pedestal part 8 Touch panel 9 Alarm Lamp 11 Microwave Receiver 12 GPS Receiver 13 Wireless Receiver 18 Control Unit 19 Database 20 Speaker 21 SD Memory Card Slot Unit 22 SD Memory Card 23 USB Connection Unit 24 Bluetooth Module 25 WiFi Module 26 Drive Recorder

Claims

1. Microwave receiving means capable of receiving microwaves in a predetermined frequency range including the frequency of the radar wave for measuring the vehicle speed, a function for controlling the microwave receiving means, and a function for performing control for issuing an alarm when microwaves are received by the microwave receiving means, and comprising control means, The list of the position information of the vending machines installed along the stored road stores the position information of the vending machines regardless of whether they are installed along the road or not, The control means has a function of controlling so that when the current position of the vehicle approaches the position of the stored vending machine but the position of the vending machine is not a vending machine along the road, it is not regarded as approaching the vending machine. A system characterized by the above.

2. A receiving unit for Bluetooth wireless signals, microwave receiving means capable of receiving microwaves in a predetermined frequency range including the frequency of the radar wave for measuring the vehicle speed, a function for controlling the microwave receiving means, and a function for performing control for issuing an alarm when microwaves are received by the microwave receiving means, and comprising control means, The control means has a function of suppressing the alarm when the Bluetooth beacon signal emitted by the vending machine is received by the receiving unit for Bluetooth wireless signals and microwaves are received by the microwave receiving means. A system characterized by the above.

3. A receiving unit for WiFi wireless signals, microwave receiving means capable of receiving microwaves in a predetermined frequency range including the frequency of the radar wave for measuring the vehicle speed, a function for controlling the microwave receiving means, and a function for performing control for issuing an alarm when microwaves are received by the microwave receiving means, and comprising control means, The control means has a function of suppressing the alarm when the WiFi SSID information emitted by the vending machine is received by the receiving unit for WiFi wireless signals and microwaves are received by the microwave receiving means. A system characterized by the above.

4. A program for causing a computer to realize the functions of the control means of the system according to any one of Claims 1 to 3.

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