JP2017096728A - Electronic instrument, connection adapter and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic instrument that detects any of a micro wave of a non-modulated continuous wave and a micro wave of a modulated continuous wave even when receiving any thereof.SOLUTION: An electronic instrument comprises: double super-heterodyne method reception circuits 11 to 17 that receive a micro wave; and control means (18 to 22) that determines whether a micro wave of an alarm object is received on the basis of an output signal of the reception circuit, and controls the alarm, in which the micro wave of the alarm object is a micro wave of a non-modulated continuous wave and a micro wave of a modulated continuous wave. A reception frequency band in the reception circuit is set to a range where either micro wave is detected. When the modulated micro wave is received, a demodulation signal in accordance with the modulation is output, and a sine wave is configured so as not to be equal to or less than a voltage releasing a sweep stop during the sweep stop accompanied by reception of the micro wave.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electronic device, a connection adapter, and a program.

  Many vehicle speed measuring devices for measuring the speed of the automobile are installed around the road. As an example of a vehicle speed measuring device, microwaves in a predetermined frequency band are emitted toward a vehicle, and the reflected waves are received to measure the traveling speed of the vehicle.

  In order to detect the presence of such a vehicle speed measuring device, there is an electronic device that detects a microwave emitted from the vehicle speed measuring device and outputs an alarm. Although a specific circuit configuration of this electronic device is omitted, its microwave detector generally captures microwaves coming from the outside with an antenna and receives them, for example, with a superheterodyne reception circuit. ing. Conventional vehicle speed measuring devices include a non-modulated continuous wave microwave and a non-continuous wave microwave subjected to pulse modulation called an H-type speed measuring device (H system). The above-described conventional electronic devices can receive two types of microwaves.

JP 2008-64588 A

  A conventional vehicle speed measuring device emits a predetermined microwave and obtains a vehicle to be measured based on reception of the reflected wave, and the vehicle speed can be measured. Some recently developed vehicle speed measuring devices can also measure the distance and direction to the vehicle to be measured for measuring the speed. Since the distance and direction are known, for example, the measured vehicle speed is associated with the distance and direction, the vehicle speed is measured multiple times at different positions, and the vehicle is photographed based on the measurement results of the multiple times. On a road with multiple lanes, a wide variety of processing can be performed, such as identifying exactly which lane the vehicle is traveling on.

  Such a recent vehicle speed measurement device does not use a conventional unmodulated microwave in order to be able to measure the distance and direction to the vehicle, and is difficult to detect with existing electronic devices. Therefore, a new problem has been found that one electronic device is required to detect radio waves emitted from either a conventional vehicle speed measurement device that emits unmodulated microwaves or the recently developed vehicle speed measurement device. It was.

  In order to achieve the above-described object, the electronic device according to the present invention (1) determines whether or not an alarm target radio wave has been received based on (1) a receiving unit that receives a radio wave and an output signal of the receiving unit. And a control means for controlling an alarm, wherein the receiving means is capable of receiving an unmodulated wave and an FSK modulated wave. Since the present invention can receive an FSK modulated wave, for example, it is possible to detect either an unmodulated continuous wave microwave or an FSK modulated continuous wave microwave.

The frequency band of the unmodulated wave is the X band, the frequency band of the FSK modulated wave is the K band, and the receiving means may lower the lower frequency side of the received frequency band of the X band.
(2) The receiving means may be configured to maintain a level of a demodulated signal corresponding to the modulation of the FSK modulated wave at a set level or higher.

  For example, a receiving unit that receives radio waves such as microwaves, and a control unit that determines whether or not an alarm target radio wave has been received based on an output signal of the receiving unit and controls an alarm, the alarm The target radio wave is at least an unmodulated continuous wave radio wave and a modulated continuous wave radio wave, and the reception frequency range in the receiving means is the unmodulated continuous wave radio wave and the modulated continuous wave radio wave. When the radio wave is set to a range where both radio waves are detected and the modulated continuous wave radio wave is received by the receiving unit, a demodulated signal corresponding to the modulation is output from the receiving unit, and a sweep is performed as the radio wave is received. It is preferable that the demodulated signal does not fall below the voltage for canceling the sweep stop while the stop is being performed.

  As described above, since the receiving frequency range in the receiving means is set to a range in which both unmodulated radio waves and modulated radio waves are detected, the radio waves are detected and received signals when any radio wave is received. Is output. When the modulated radio wave is received by the receiving means, a demodulated signal corresponding to the modulation is output from the receiving means. At this time, for example, if the lower peak of the demodulated signal corresponding to the modulation is equal to or lower than the voltage at which the sweep stop is maintained, the sweep stop is canceled halfway and the reception of the regular radio wave is not recognized. Therefore, for example, while the sweep stop is being performed, the demodulated signal corresponding to the modulation does not fall below the voltage for canceling the sweep stop, so that the modulated continuous wave can be reliably detected. Therefore, both an unmodulated continuous wave radio wave and a modulated continuous wave radio wave can issue an alarm as reception of the radio wave to be alarmed. This makes it possible to detect both radio and radio waves emitted from either a conventional vehicle speed measurement device that emits unmodulated radio waves or a recently developed vehicle speed measurement device with a single electronic device. By issuing an alarm along with this, it is possible to prompt the driver to drive safely.

  (3) It is preferable to include a type determination unit that determines whether or not the received radio wave is the FSK modulated wave, and the control unit controls the alarm based on the determination result of the type determination unit. For example, when the reception of the FSK-modulated continuous wave or the like is detected by the type determination means, for example, by receiving the FSK-modulated radio wave or the like by notifying in a manner different from the alarm accompanying the reception of other radio waves. You can inform the driver that there is.

  Some speed measuring devices that emit radio waves such as continuous wave microwaves that are FSK-modulated are relatively compact and small in size. For example, they may be installed in an area where the zone 30 is set. Zone 30 sets a zone (zone) for the purpose of ensuring safe traffic such as pedestrians and bicycles on local roads, and implements speed regulation of a maximum speed of 30 kilometers per hour and other safety measures It is implemented as necessary. The zone where such a zone 30 is set is, for example, a place where there are many traffic and high risk of traffic accidents. Therefore, for example, when a speed measurement device that emits a modulated continuous wave radio wave is installed in the zone 30, when receiving a radio wave from the speed measurement device, other information is provided so that it can be understood. Informing in a manner different from the warning is preferable because the driver can perform safer driving. Zone 30 has a maximum speed limited to 30 km / h to ensure safe traffic for pedestrians, etc., so it is easy to exceed the speed. Can be urged.

  (4) The type determination unit may perform the determination based on whether or not the demodulated signal output from the reception unit includes a signal based on the modulated wave. The determination can be made simply by determining the presence or absence of a signal based on the demodulated wave in the demodulated signal. The signal based on the modulated wave may be a demodulated wave itself, or a rectangular wave having a waveform shaped as in the embodiment.

  (5) The type determination unit may perform the determination based on at least one of a time component and an amplitude component of the demodulated signal output from the reception unit. (6) The type determining unit may perform the determination based on a cycle of a demodulated signal output from the receiving unit. Since the velocity measuring device that emits a modulated continuous wave radio wave has a constant period, for example, it can be easily and accurately determined based on the period. For example, a demodulated signal accompanying reception of a radio wave emitted from a speed measuring device may have a fixed period although its duty ratio and signal width may change. In such a case, the present invention, which is determined based on the period, is preferable because it can reliably detect reception of an alarm target radio wave.

(7) The type determining unit may perform the determination based on at least one of a duty ratio and a signal width of a rectangular wave based on the demodulated signal output from the receiving unit. If the duty ratio and signal width of the alarm target radio wave are known, it is preferable in such a case that reception of the alarm target radio wave can be easily detected based on the duty ratio and signal width.
(8) The determination based on the time component may be performed based on an amplitude width based on a demodulated signal output from the receiving unit.

  (9) When a modulated continuous wave radio wave that is not an alarm target is detected, the control means may not perform a normal alarm. Not performing a regular alarm includes, for example, not performing an alarm itself, or performing an alarm in a different manner. Alarms in different modes may change the type of alarm, make the type of alarm the same and make it inconspicuous (for example, lower the volume, etc.), or change the notification content. When changing the notification content, it is preferable to identify the type of the source of the received radio wave and notify the type.

  Information on radio waves such as FSK-modulated continuous wave microwaves received from power-on is stored, and when the control means receives the radio waves, the control means may not perform a regular alarm. . The alarm target radio wave is not received at all times, but is received when approaching a device that emits the alarm target radio wave. Therefore, since the modulated continuous wave received from the power-on may be emitted from an in-vehicle device or the like mounted on the own vehicle, even if such a radio wave is received, a proper alarm is not given. Thus, the occurrence of a false alarm can be suppressed. In addition, by incorporating such a function, it is possible to prevent false alarms even when the frequency of radio waves emitted from equipment mounted on the vehicle that is received when the power is turned on enters the reception frequency band. This is preferable because the tolerance is increased.

  (10) Among a plurality of demodulated signals that are output when the reception frequency band is swept once, and that are subjected to a set condition, two demodulated signals that satisfy a set condition are set as a pair, and two of the pair When one of the demodulated signals is a demodulated signal corresponding to the modulation, it is determined that the modulated continuous wave is received, and the determination based on the other received signal of the two received signals of the pair is not performed. Good.

  Due to the characteristics of the receiving means, a reception signal appears twice for one wave of the reception frequency, and one of them does not include a demodulated signal corresponding to the modulation. Then, if a determination is made based on a non-modulation-like demodulated wave that includes a noise component and does not include a demodulated wave corresponding to the modulation, it is erroneously determined that the radio wave is not a modulated continuous wave. Therefore, by setting a pair as in the present invention, when a modulated continuous wave radio wave is received, it can be reliably detected.

(11) When it is determined that the modulated continuous wave is received based on the pair, the previous determination result may be maintained for a predetermined period thereafter. For example, a modulated continuous wave radio wave to be alarmed may have a low received electric field strength and cannot be reliably detected for each sweep. Even in such a case, if reception of radio waves is detected once in a pair, an appropriate alarm can be continuously performed by maintaining the previous determination result even if the pair cannot be detected several times thereafter.
The modulation may be FSK modulation.

  (12) A road having a traffic monitoring information notification function for notifying a display unit of traffic monitoring information related to traffic monitoring activities set in an area including the acquired current position of the vehicle, and performing the monitoring activities on the traffic monitoring information When the road specifying information for specifying is included, it is preferable to perform notification in a mode different from the notification of other traffic monitoring information not including the road specifying information. In this way, when the target road for control or the like is disclosed as traffic monitoring information, it is only necessary to easily know the existence of the target road.

  (13) The notification of the different mode is performed so that the target road of the monitoring activity specified by the road specification information among the roads drawn in the map image where the displayed vehicle is present can be easily understood. It is good to do. Since it becomes easy to understand that the road drawn on the map is the target road, for example, it can be easily understood whether or not the currently running road is the target road.

  (14) For the notification that makes the target road easy to understand, the target road of the monitoring activity may be drawn in a conspicuous color. This is preferable because the target road can be found at a glance.

  (15) The traffic monitoring information notification function may have a function of displaying text-based display information based on traffic monitoring information on the display unit, and the notification in the different mode may be performed by changing the display color of the text. In the embodiment, display of display information by text corresponds to displaying a message in the sub display area 52 in a telop or the like. The display color may be a single color, but it is preferable to display a plurality of colors alternately as in the embodiment because it is more conspicuous. By displaying the text in a different manner, it can be easily understood that the traffic monitoring information about the road is disclosed and the contents.

  (16) The display color of the text and the display color of the road may be related colors. Some related colors are the same color or the same color. By using relevant colors, it is easy to link the target road displayed on the map and the contents displayed in text, so you can easily understand the displayed text information about which road. good.

  (17) The traffic monitoring information may include public control information and speed control guideline information, and may have a function of notifying the public control information and speed control guideline information in different modes. Both types of information may be reported in the same mode, but by using different modes, it may be easy to understand which type of traffic monitoring information is used. In a different aspect, in the embodiment, the public control information is a notification based on red, and the speed control guideline information is distinguished by color such as neglecting based on blue. However, other distinction methods may be used. However, the color-based method is easier to understand and intuitive.

  (18) The notification of the different mode may be performed by notifying traffic monitoring information of the target road while traveling on the target road of the monitoring activity specified by the road specifying information. This is preferable because it can be easily understood that the traffic monitoring information is issued to the road on which the vehicle is traveling, and it is possible to more reliably urgently perform safe driving when traveling on the target road. So good.

  (19) When the vehicle is not traveling on the target road, the notification of the different mode regarding the target road may not be performed. In this way, it is not necessary to notify the exchange monitoring information that is not related to the currently traveling road in a different manner, so that the load on the apparatus can be reduced. For example, in the case where the notification in a different mode is to draw the target road in a conspicuous color, the map image may be used as it is, for example, by not displaying the different color. In the case of notifying the display information by text, the necessary traffic monitoring information may be appropriately notified by the driver by not notifying the traffic monitoring information not related to the road on which the vehicle is traveling. In addition, if the notification of a different aspect is not performed, it is good to notify the traffic monitoring information about the road which is not driving | running in a normal aspect, for example.

  (20) The notification of the different mode may be performed by notifying traffic monitoring information of the target road when the vehicle enters the target road of the monitoring activity specified by the road specifying information. When entering the target road, when entering, immediately after entering, it can take various modes such as after a predetermined time has passed since entering. It is better to understand the relationship that it is a notification of traffic monitoring information about a traveling road more smoothly if it is performed immediately after entering or when entering the vehicle relatively soon.

  (21) The notification of the different mode is a notification of text-based display information based on traffic monitoring information about the target road when the vehicle enters the target road of the monitoring activity specified by the road specifying information. It is good to do so. There may be a plurality of traffic monitoring information related to regions / areas including the current position of the vehicle. In such a case, the plurality of traffic monitoring information is sequentially displayed in an appropriate order. Therefore, it is preferable to notify in the normal order because it is possible to preferentially notify when the notification by the text of the traffic monitoring information about the road being traveled is delayed.

  (22) The road elevation information for specifying the altitude of the road is stored, and the road to be traveled is specified and specified based on the acquired current position information, the acquired information on the current altitude, and the stored road elevation information. The notification target information may be notified based on the road. For example, for example, when a general road and a highway overlap each other vertically or are adjacent to each other, it may not be possible to specify which road is being driven with the current position information. In the present invention, since the road altitude information is provided, the control unit determines which road altitude information matches with the acquired altitude of the current position, and accurately determines the road that is currently running. . Notification target information includes, for example, traffic monitoring information.

  (23) A connection adapter to which any one of the electronic devices described above can be connected, wherein a device different from the electronic device can be connected at the same time, and vehicle information periodically output from a vehicle is transmitted to the electronic device. A function of transmitting and a function of transmitting information output from an apparatus different from the electronic apparatus at an interval different from the vehicle information to the electronic apparatus at a timing when the vehicle information is not transmitted are provided.

  In this way, the electronic device can periodically acquire the vehicle information output from the vehicle, and can also efficiently acquire the information sent from another device. Then, the electronic device can perform predetermined control based on the acquired information or the like, and can perform notification or recording.

(24) A connection adapter to which any one of the electronic devices described above can be connected, wherein a device different from the electronic device can be connected simultaneously, and vehicle information that is periodically output from a vehicle is transmitted to the electronic device. And a function of mixing a signal transmitted from a device different from the electronic device and the vehicle information and transmitting the vehicle information to the electronic device.
(25) The program of the present invention is a program for causing a computer to realize the function of the control means in any of the electronic devices described above.

  According to the present invention, it is possible to detect a case where either an unmodulated radio wave or an FSK modulated radio wave is received.

It is a figure which shows the structure of the radar detector which is a suitable 1st embodiment of this invention. It is a figure which shows the output waveform etc. of each process part accompanying reception of the microwave of an unmodulated continuous wave. It is a figure explaining reception of the modulated microwave of a continuous wave. It is a figure which shows the output waveform etc. of each process part accompanying reception of the modulated continuous wave microwave. It is a figure which shows the structure of the radar detector which is suitable 2nd embodiment of this invention. It is a figure which shows the output waveform etc. of each process part accompanying reception of the microwave of the modulated continuous wave in 2nd embodiment. It is a figure which shows the output waveform etc. of each process part accompanying reception of the microwave of the unmodulated continuous wave in 2nd embodiment. It is a figure which shows the principal part structure of the radar detector which is suitable 3rd embodiment of this invention. It is a figure explaining a modification. It is a figure which shows the structure of the radar detector which is suitable 4th embodiment of this invention. It is a schematic diagram which shows the traffic monitoring information memorize | stored in 3rd DB. 6 is a diagram illustrating an example of a display screen 50 displayed on the display unit 45. FIG. 6 is a diagram illustrating an example of a display screen 50 displayed on the display unit 45. FIG. 6 is a diagram illustrating an example of a display screen 50 displayed on the display unit 45. FIG. 6 is a diagram illustrating an example of a display screen 50 displayed on the display unit 45. FIG. It is a figure which shows one suitable embodiment of a connection adapter. 6 is a diagram illustrating an example of a display screen 50 displayed on the display unit 45. FIG. 6 is a diagram illustrating an example of a display screen 50 displayed on the display unit 45. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. These drawings are used to explain technical features that can be adopted by the present invention. The configuration, shape, and the like of the device described are merely illustrative examples, and the present invention is not construed as being limited thereto, and is based on the knowledge of those skilled in the art without departing from the scope of the present invention. Various changes, modifications, and improvements can be added.

[Basic configuration]
FIG. 1 shows a preferred first embodiment of the electronic apparatus of the present invention. In this embodiment, the example applied to the radar detector which is one form of an electronic device is shown. As shown in the figure, the radar detector includes a double superheterodyne receiving circuit. The receiving circuit frequency-mixes an antenna 11 that receives radio waves in a predetermined frequency band, a first local oscillator 12, and a reception signal received by the antenna 11 and a signal output from the first local oscillator 12. The first mixer 13, the second local oscillator 14, and the second mixing that frequency-mixes the first intermediate frequency signal that is frequency-mixed and output from the first mixer 13 and the signal that is output from the second local oscillator 14. And a detector 16 that receives the output obtained by frequency mixing by the second mixer 15 and detects reception of radio waves of a predetermined frequency.

  The first local oscillator 12 outputs a signal having a constant frequency. The second local oscillator 14 is configured using a VCO (voltage controlled oscillator) and repeatedly sweeps a predetermined frequency range based on the control voltage from the local frequency control unit 17.

  The detector 16 amplifies and detects the second intermediate frequency signal from the second mixer 15. The detector 16 outputs white noise when not receiving a microwave of a predetermined frequency, and outputs a demodulated signal of a certain level or higher when receiving a microwave of a predetermined frequency.

  When the reception of the microwave to be alarmed is detected by each processing unit provided at the subsequent stage of the detector 16, an alarm is issued from the alarm unit 23. Each processing unit generates a determination signal for determining whether or not the demodulated signal is output for the reception of the microwave, and a detection signal for determining whether or not the demodulated signal continues for a certain period of time. Determination signal generation unit 19, reception signal generation unit 20 that generates a reception signal based on the output of detection continuation determination signal generation unit 19, and reception intensity signal that generates a signal based on the received electric field strength from the S meter output of detector 16 The control part 22 which performs control which alert | reports an alarm when the alert condition is satisfy | filled based on the output of the production | generation part 21, the received signal production | generation part 20, and the received intensity signal production | generation part 21 is provided.

  The local frequency control unit 17 controls the sweep voltage based on the output of the detection determination unit 18. That is, the local frequency control unit 17 repeatedly sweeps the control voltage within the set range when the microwave of the predetermined frequency is not received. And when the microwave of predetermined frequency is received, a control voltage is hold | maintained for a fixed time, and a sweep stop is carried out. When a certain time has elapsed, the sweep is continued again. If the microwave is not received before a certain time elapses, the pause is canceled and the sweep is started again.

  The radio wave to be alarmed is an unmodulated continuous wave microwave emitted from a conventional vehicle speed measuring device and a pulse emitted from a vehicle speed measuring device called an H-type velocity measuring device (H system). There is a modulated microwave. Both the unmodulated continuous wave microwave and the latter pulse-modulated microwave exist in the X-band frequency band. Further, there is a K band band as a frequency band that can be used in the vehicle speed measuring device. In order to detect microwaves in different frequency bands in the same reception frequency band as described above, the detection target band of the X band is covered using the fundamental wave of the local oscillator, and the second harmonic of the local oscillator is detected. It is set so that the detection target band of the K band is covered. The microwave emitted from the H-type velocity measuring device is a pulse-modulated microwave that is emitted non-continuously, but when receiving the microwave from the H-type velocity measuring device, the frequency is When there is a sweep stop, a predetermined detection waveform is output from the detector 16 in the same manner as an unmodulated continuous wave microwave.

  The detection determination unit 18 monitors the output of the detector 16 and determines whether or not there is a microwave reception signal during detection output. Specifically, for example, a threshold value process is performed on the output of the detector 16, and when the output is equal to or higher than the threshold value, a process of receiving is performed.

  The detection continuation determination signal generation unit 19 performs processing for generating a signal based on the time during which the output of the detection determination unit 18 continues to be received. For example, the process is integrated when the output of the detection determination unit 18 is received, and is reset when the output of the detection determination unit 18 is not received.

  Based on the output of the detection continuation determination signal generation unit 19, the reception signal generation unit 20 generates a reception signal that is effective when the detection signal continues for a certain period of time. The fixed time corresponds to the fixed time for the sweep stop, and is a time provided with a predetermined margin for the fixed time for the sweep stop. In other words, this is effective when a microwave having a predetermined frequency which has been swept stopped is continuously received during the sweep stop. Specifically, the reception signal generation unit 20 performs threshold processing on the integrated value output from the detection continuation determination signal generation unit 19 and the continuation determination value, and outputs a reception signal when the threshold value is exceeded.

  The reception intensity signal generation unit 21 receives the S meter output of the detector 16 and generates and outputs a level signal in which the reception electric field intensity is divided into a plurality of stages (for example, five stages). Furthermore, in this embodiment, based on the reception signal output from the reception signal generator 20, the S meter output is viewed when a predetermined microwave is received. Thereby, since a level signal is not generated during a period in which microwaves are not received, the processing load can be suppressed.

  For example, when the reception signal of the reception signal generation unit 20 becomes valid, the control unit 22 issues an alarm by the alarm unit 23. The alarm unit 23 issues a predetermined alarm with the output of the control unit 22. The alarm unit 23 includes, for example, a speaker, a display panel, and a light emitter. Predetermined alarms are, for example, announcing the radar reception from the speaker, an alarm / buzzer using sound / music, or displaying characters, figures, images, etc. informing the radar reception on the display panel. , Make the illuminant emit light or blink.

  While receiving the microwave to be alarmed, one or two received signals appear each time the sweep is performed. Therefore, when the reception signal appears in a plurality of sweeps, for example, a predetermined alarm is continuously performed on the assumption that the microwave to be alarmed is received.

  Further, the control unit 22 notifies the reception electric field strength based on the level signal output from the reception strength signal generation unit 21. The notification of the received electric field strength is performed by, for example, displaying a level meter on the display panel or notifying the reception level of the microwave in the form of light emission color, light emission pattern, level meter, etc. Moreover, the control part 22 is good to control the aspect of the alarm accompanying that the received signal of the received signal generation part 20 was produced | generated by the received level signal. For example, the alarm is not conspicuous when the received electric field strength is low, and the alarm is conspicuous when the received electric field strength is high.

[Signal processing when receiving unmodulated continuous wave]
The radio wave emitted from the conventional vehicle speed measuring device is a continuous wave and an unmodulated microwave. Therefore, the function of signal processing of each of the above-described processing units will be described by taking as an example a case where such unmodulated continuous wave microwaves are received. FIG. 2 shows signal waveforms output from each processing unit in a single sweep, and since an unmodulated continuous wave microwave is received, the output (b) of the local frequency control unit is Stopping soup twice. Also, the output signal (a) of the detector 16 outputs a constant level of white noise during the period in which the microwave is not received, and the detection signal at a level higher than the noise continues during the sweep stop. Is output. There is no modulation and noise is applied.

  The detection determination unit 18 sets a threshold value in accordance with the white noise level of the output signal (a) of the detector 16, and generates a pulse by binarizing the output signal (a) based on the threshold value. To do. Further, in the present embodiment, the signal is such that High is on the reference side and the Low level is valid. Therefore, as shown in the figure, the output signal (c) of the detection / determination unit 18 is a pulse in which High / Low is repeated in a short cycle in the section where the microwave is not received, and in the section where the microwave is received. , (Low) continues.

  The detection continuation determination signal generation unit 19 is configured by an integration circuit, for example. When the output signal (c) of the detection / determination unit 18 repeats High / Low in a short cycle, since the integration is set during High, the continuation determination signal (d) maintains a high value. In the section in which the microwave is received, the integrated value gradually decreases. When the sweep stop is canceled after a certain time has elapsed, the microwave is not received and the integrated value is reset. When the detection continuation determination signal generation unit 19 is configured by hardware, the output of the detection continuation determination signal generation unit 19 is a voltage.

  The reception signal generation unit 20 is configured by, for example, a comparator. An output value (for example, a reference value continuation determination voltage value) of the detection continuation determination signal generation unit 19 when the Low of the output signal (c) of the detection determination unit 18 continues for a certain time or more is set as a reference value. As a result, the reception signal generation unit 20 compares the output value of the detection continuation determination signal generation unit 19 with a reference value. If the reference value is equal to or higher than High, the reception signal (e) is set to Low, that is, ON. Is output. When this reception signal (e) becomes Low, it indicates reception of a microwave having a predetermined frequency.

[Continuous wave reception function of FSK modulation]
Some recently developed vehicle speed measuring devices can also measure the distance and direction to the vehicle to be measured for measuring the speed. In order to make the distance and direction known, the radio wave emitted from the vehicle speed measurement device is a continuous wave microwave that is alternately switched between two frequencies (hereinafter referred to as “FSK modulation”). The frequency band of the microwave is the K band. The first local oscillator 12 is configured so that the above-described X-band unmodulated microwave and pulse-modulated X-band microwave are detected in the same reception frequency band together with the K-band FSK-modulated microwave. The reception frequency band of the control voltage in the local frequency control unit 17 that controls the frequency and the frequency of the second local oscillator 14 is set.

  In the present embodiment, in the reception frequency band in the radar detector considering the detection of the conventional X-band unmodulated and pulse-modulated microwave and the K-band microwave that has been enacted and expected to be pulse-modulated. It cannot cover the frequency band of the FSK-modulated microwave to be detected. Therefore, the reception frequency band may be widened and detected in a wide band while keeping the center frequency of the X band reception frequency band set in the conventional electronic device the same, but in this embodiment, the first local oscillator 12 The frequency was shifted to the lower frequency side. That is, for example, in a collision prevention system mounted on a vehicle, for example, there is a system that measures a distance to a preceding vehicle using, for example, millimeter waves and issues an alarm or automatically brakes when the distance approaches. . For this reason, if the bandwidth is widened without changing the center frequency, the original transmission frequency harmonic component for generating the millimeter wave frequency used when measuring the distance to the vehicle ahead is received, resulting in false alarms. It becomes a factor. Therefore, as in the present embodiment, when the reception frequency band is maintained at the conventional X band bandwidth and the reception band of the K band is slid downward, the millimeter wave is not received. Therefore, even if the radar detector of this embodiment is installed in a vehicle equipped with a collision prevention system, it is preferable because false alarms can be suppressed.

  When the reception frequency band is appropriately set as described above, when the microwave emitted from the new vehicle speed measuring device capable of measuring the distance and direction to the vehicle is received, the output of the detector 16 is shown in FIG. It becomes like this. As shown in the figure, similarly to the unmodulated continuous wave of the X band, the sweep is stopped twice because the received signal appears twice in one sweep. When an FSK modulated wave including FM is received, one of the two demodulated signals appears as a demodulated signal in which two frequencies are switched as shown in an enlarged manner, and the other demodulated signal is demodulated. The signal is in a state in which noise is carried without being demodulated in the two-frequency switching mode. In this way, when receiving microwaves from the new vehicle speed measuring device, binary demodulated waves and unmodulated demodulated waves with many noise components are output in pairs. Although the binary demodulated wave and the unmodulated demodulated wave are output in pairs, the level of the level is indefinite, and the binary demodulated wave is not always at a higher level as shown in FIG.

  In the present embodiment, the demodulated signal corresponding to the modulation does not fall to a level at which the sweep stop is canceled during a certain time during which the double superheterodyne receiving circuit is sweeping stopped. For example, when the lower peak of the sine wave becomes the white noise level when microwaves are not received during the sweep stop, the output of the detection determination unit 18 becomes High, and the sweep stop is performed even though the microwave is received. This causes the problem that will be released. Therefore, in this embodiment, by setting so that the sine wave does not fall to the level at which the sweep stop is canceled, the microwave is continuously received for a certain period of time when the sweep stop is performed, and the reception of the regular microwave is performed. Judgment can be made.

  In this embodiment, the detection band of the detector 16 is widened so as not to drop to a level at which the sweep stop is canceled. For example, in a detector such as an FM radio receiver, a detection band of ± 3.5 kHz is set with respect to the center frequency, but in this embodiment, it is expanded to the MHz order. By widening the detection band in this way, the waveform becomes gentle and the amplitude becomes small, so that the lower peak of the sine wave maintains a level higher than the threshold value in the detection determination unit 18. Ordinary detectors narrow the detection bandwidth to increase the amplitude, thereby improving the radar reception sensitivity. However, in the present embodiment, the detection band is intentionally widened by the opposite idea. Therefore, it is now possible to detect microwaves from a new vehicle speed measurement device.

  FIG. 4 shows signal waveforms output from each processing unit in one sweep when a microwave of an FSK modulated wave including FM output from a new vehicle speed measuring device is received. As described above, with reception of the microwave, a reception signal is expressed in a pair of a sine wave and a non-sine wave. Therefore, the output (a) of the detector 16 is first a demodulated signal of a sine wave, Next, a non-sinusoidal signal is output. Since the detection band of the detector 16 is set wide, the sine wave signal maintains a level sufficiently higher than the level of white noise as shown in the figure. Therefore, the output signal of the detection determination unit 18 is kept low for a certain time during which the sweep is stopped. As is clear from comparison between FIG. 4 and FIG. 2, the subsequent signal processing is the same as in the case of the unmodulated continuous wave described above.

  In addition, the non-sinusoidal signal that is output second is in a state of noise like the unmodulated continuous wave, so if you continue to receive microwaves for a certain period of time during which the sweep is stopped. Low is maintained. Therefore, it is processed in the same manner as in the case of the unmodulated continuous wave described above. Then, the reception signal generation unit 20 outputs a reception signal upon reception of both the sine wave and the non-sine wave.

  As described above, in the present embodiment, unmodulated continuous wave microwaves, non-continuous microwaves subjected to pulse modulation of the H system, and FSK modulation of a new vehicle speed measuring device in the same reception frequency band. Any of the continuous wave microwaves received can be detected and notified.

[Second Embodiment]
FIG. 5 shows a second embodiment of the present invention. In the present embodiment, a function is provided for determining the type of microwave, such as whether or not the received microwave is from a new vehicle speed measuring apparatus that is FSK modulated. In the present embodiment, the type determination unit 30 is provided on the premise of the radar detector of the first embodiment. The output of the detector 16 is connected to the detection determination unit 18 and the type determination unit 30, respectively. The type determination unit 30 acquires the output signal of the detector 16, determines the type of the received microwave based on the output signal, and gives the determination result to the control unit 22. Based on the received microwave type, the control unit 22 issues an alarm corresponding to the type.

  The type determination unit 30 includes a demodulated signal selection unit 31, a waveform shaping unit 32, a periodic signal generation unit 33, a modulation determination unit 34, and a frequency analysis unit 35. The function of each processing unit will be described with reference to signal waveform diagrams shown in FIGS. FIG. 6 shows a case where a microwave output from a new FSK-modulated vehicle speed measuring device is received. The output signal (a) of the detector 16 shown in FIG. 6 is the same as the output signal (a) of the detector 16 shown in FIG. FIG. 7 shows a case where unmodulated continuous wave microwaves are received. The output signal (a) of the detector 16 shown in FIG. 7 is the same as the output signal (a) of the detector 16 shown in FIG.

  The demodulated signal selection unit 31 selects a fluctuating signal portion from the demodulated signal output from the detector 16. As shown by the signal (f) in FIGS. 6 and 7, white noise is selected in the section not receiving the microwave, and sine wave, non-sine wave, etc. are selected in the section receiving the microwave. A signal is generated and output.

  The waveform shaping unit 32 obtains the signal (f) output from the demodulated signal selection unit 31, performs threshold processing on the signal (f), binarizes it, and generates a rectangular wave. The threshold value is set, for example, at the center level of the amplitude of the sine wave. Thereby, as shown by the signal (g) in FIG. 6 and FIG. 7, the waveform shaping unit 32 generates a rectangular wave that repeats at a constant period and outputs it when a demodulated signal of a sine wave is output. To do. The waveform shaping unit 32 outputs a non-sinusoidal signal associated with reception of a microwave of an FSK modulated wave including FM emitted from a new vehicle speed measurement device when the microwave is not received ( 6) or when receiving unmodulated microwaves (see FIG. 7), the cycle is indefinite and high / low is repeated at a shorter cycle than when a sine wave demodulated signal is output. Generate and output a square wave. Furthermore, when a rectangular wave when a microwave other than a sine wave is received is compared with a rectangular wave when no microwave is received, High / Low is received at a shorter cycle when the microwave is received. It becomes a rectangular wave that repeats.

  The periodic signal generator 33 generates a signal representing the period of the signal (g) output from the waveform shaping unit 32. In the present embodiment, the periodic signal generator 33 detects the falling edge of the signal (g) and generates a single pulse having a predetermined width. When the signal (g) has a very short period, such as when an unmodulated microwave is received or when a wave non-sinusoidal signal is output accompanying reception of an FSK modulated microwave, a periodic signal generator 33 does not generate a single pulse and maintains the Low state.

  The output of the periodic signal generator 33 (periodic signal (h)) is given to the modulation determination unit 34 and the frequency analysis unit 35. The modulation determination unit 34 determines whether the received microwave is a microwave subjected to FSK modulation. The modulation determination unit 34 generates a modulation determination signal (i) that is Low when the normal signal is High and the periodic signal (h) output from the periodic signal generation unit 33 is output at an appropriate interval. ,Output. For example, the modulation determination unit 34 detects the falling occurrence interval of the periodic signal (h), and when the generation interval is equal to or greater than a certain value, the modulation determination signal (i) is set to High with the falling of the periodic signal (h). To low. Thereafter, when a pulse is generated with the periodic signal (h) at a generation interval of a certain value or more, the Low state is maintained. On the other hand, when a pulse is generated at a short generation interval without receiving the microwave, the modulation determination unit 34 switches the modulation determination signal (i) from Low to High. Further, when a signal other than a sine wave demodulated signal associated with microwave reception is output, the periodic signal (h) is Low, so that no pulse is generated, and the falling of the pulse is not detected. Maintains the modulation determination signal (i) in the High state. Therefore, when the microwave of the new vehicle speed measuring device is received, the modulation determination signal (i) becomes Low when the first sine wave demodulated signal is output, as shown in FIG. High in other sections. On the other hand, when a normal unmodulated continuous wave microwave is received, the modulation determination signal (i) remains High as shown in FIG. Based on the modulation determination signal (i), it is possible to determine whether or not an FSK-modulated microwave has been received.

  When the received microwave is an FSK modulated sine wave signal, the frequency analysis unit 35 determines whether the frequency and modulation frequency of the detected demodulated signal are within a predetermined range. is there. The modulation frequency of the microwave emitted from the new vehicle speed measuring device is set at a certain fixed value (for example, a cycle of several milliseconds or less). One cycle of the sine wave is equal to one cycle T of the rectangular wave signal (g) shown in FIG. This one period T is equal to the generation interval T ′ of each pulse of the periodic signal (h).

  Therefore, the frequency analysis unit 35 determines that the pulse generation interval of the periodic signal (h) output from the periodic signal generation unit 33 is within a certain range as an effective FSK frequency, outputs Low, and is out of range. In this case, High is output.

  Specifically, for example, the frequency analysis unit 35 performs a process of starting integration at the falling edge of the periodic signal (h) and resetting at the rising edge of the next pulse. Whether the current value is within the range of the lower threshold or not. The frequency analysis unit 35 maintains the previous state of the output until the next peak is determined.

  Therefore, as shown in FIG. 6, when the FSK-modulated sine wave microwave is received, the frequency determination signal (j) is low during the period in which the sine wave demodulated signal is output, and the non-sinusoidal signal is output. When a wave signal is output or when an unmodulated microwave is received, the peak is high because it exceeds the upper threshold.

  Further, the FSK-modulated radio wave received by the electronic apparatus according to the present embodiment is not limited to the new vehicle speed measurement device, and is received within the sweeping bandwidth range. For example, a device for detecting the approach of a vehicle or the like from the rear emits microwaves toward the rear. This microwave is in the K-band, and when it comes to the rear of the vehicle on which the device is mounted, the microwave is received, and a false alarm is issued if no countermeasure is taken. However, since the modulation frequency of the microwave emitted from the device is different from the modulation frequency of the microwave emitted from the new vehicle speed measurement device, the peak of the integrated value is less than the lower threshold or the upper threshold. Therefore, the frequency determination signal (j) becomes High. Based on this frequency determination signal (j), it is possible to determine whether or not the received microwave is emitted from a new vehicle speed measuring device to be alarmed.

  The modulation determination signal (i) output from the modulation determination unit 34 and the frequency determination signal (j) output from the frequency analysis unit 35 are provided to the control unit 22. The control unit 22 is also provided with a received signal (e) and a level signal, as in the first embodiment. The control unit 22 performs alarm control using the given signal as appropriate.

  As an example of the alarm control, for example, the control unit 22 uses the reception signal (e) and the modulation determination signal (i), and when the radar reception alarm is issued along with the reception of the microwave, the modulation determination signal (i) When High, an alarm associated with normal radar reception is issued, and when the modulation determination signal (i) is Low and the frequency determination signal (j) is also Low, an alarm different from normal is performed. For example, the alarm different from the normal one may change the display mode or generate an identification sound or a dedicated alarm sound so that the radar reception from the new vehicle speed measuring device can be recognized. Further, the microwave emitted from the new vehicle speed measuring device has a lower received signal intensity level than the microwave emitted from the conventional normal vehicle speed measuring device, and further, the second harmonic of the K band. Since the detection is performed based on the component, the S meter output of the detector 16 is also small. Therefore, even if the level signal is small, there is a possibility that the new vehicle speed measuring device is approached when it is detected. Or issue a special alarm sound.

  On the other hand, when the modulation determination signal (i) is Low and the frequency determination signal (j) is High, the alarm is stopped or suppressed. Further, when the type of microwave generation source (for example, vehicle approach identification warning) is known, an alarm based on the type of the generation source may be issued. By giving such an alarm, a wider variety of information can be notified.

[Judgment using pair]
As shown in FIGS. 2 to 4, 6, and 7, the reception signal appears twice for one wave of the reception frequency due to the characteristics of the reception circuit. With the two occurrences, the output of the reception signal generation unit 20 generates two ON signals (Low). Therefore, in the determination process in the control unit 22, the received signals within the same sweep cycle are recognized as a pair and determined. When an FSK modulated wave including FM emitted from a new vehicle speed measuring device is received, a sine wave demodulated signal can be obtained only in the AF output linear region (see FIGS. 3, 4 and 6). For this reason, the type determination unit 30 can determine that the reception of FSK-modulated microwaves is one, and the other output is the same as an unmodulated continuous wave. End up. Therefore, if it is recognized as a pair and it is determined that one of the pair is an FSK modulated wave, it is determined that the FSK modulated wave is received regardless of other determination results, and appears when receiving an FSK modulated microwave. Suppressing erroneous determination as a continuous wave by the other signal is suppressed. A specific pair setting process is as follows.

[Pair setting]
The control unit 22 sets two reception signals that satisfy the following conditions in pairs. (1) A pair of two received signals expressed in the same sweep cycle is used. When two or more received signals appear in the same sweep cycle, they are not paired in principle, but when one received signal appears in one cycle and three received signals appear in the next cycle, the number increased. Pair two. (2) A pair of the first and second received signal levels exceeding the received signal level of the received signal in the past cycle is set as a pair. (3) The first received signal level that exceeds the first received signal level of the received signal in the past cycle, and the two when the second appears appears as a pair. (4) Pair setting is performed only for the first time when any of the above pair conditions is established.

[Retention and update of received signal information]
In a situation where stable reception cannot be obtained, the FSK determination value changes due to fluctuations in the reception level. Therefore, the identification alarm and the alarm stop process become unstable due to the fluctuation of the FSK determination value. In addition, there is a problem that a change in the control voltage of the local frequency control unit 17 occurs due to a change in the ambient temperature and is determined as another frequency, and the identification alarm and the alarm stop process become unstable.

  Therefore, the control unit 22 retains the determination performed in the past reception and the reception information managed as a pair, and stabilizes the alarm processing by using the stored reception information to issue an alarm. Thus, even when the reception and reception of received signal information is unstable, the same processing as before is performed, which is preferable because it stabilizes. The holding period is about 25 seconds, for example. When it is not received during the holding period, it is canceled.

[Update control voltage]
Further, the control voltage output from the local frequency control unit 17 fluctuates due to fluctuations in the ambient temperature or the internal temperature of the product (for example, the internal temperature increases as the current consumption increases), and the transmission frequency of the local oscillator fluctuates. Therefore, the update is performed when the update allowable voltage is exceeded, and the transmission frequency is adjusted to a desired value.

[Update of FSK judgment value]
As the received signal level increases, the demodulated waveform becomes stable, so that FSK determination is possible. Therefore, if the determination value is determined to be an FSK modulated wave even at the same control voltage, the determination result is updated and held. As a result, once it is determined that the FSK modulation wave has been received, and the sine wave signal does not appear during the subsequent sweep processing, the previous determination result is maintained if there is no such cancellation. Therefore, alarm control based on reception of an FSK modulated signal is stably performed.

[Change of FSK judgment value]
The determination result of the reception signal that is determined to be FSK and the reception signal of the pair is changed to be the same. In this case, since the determination results of the received signals based on the reception of the FSK modulated signal are both FSK signals, the control unit 22 does not falsely alarm even if alarm control is performed using the determination results as they are. .

[Alarm processing]
Based on the received signal determination value within the same sweep period, the control unit 22 performs alarm processing with the following priority.
(Priority 1) When an effective FSK determination is made, an alarm is issued with the alarm level set to “5”.
(Priority 2) If it is determined as a continuous wave, a normal alarm is given.
(Priority 3) When invalid FSK determination is made, an alarm is stopped.
Further, instead of stopping the “priority 3” alarm, a device type other than the vehicle speed measuring device may be specified based on the reception level, and an alarm corresponding to the specified device type may be issued. For example, when changing from weak reception to strong reception, there is a high possibility that a vehicle equipped with a device that outputs an FSK-modulated signal is approaching, so the “other vehicle approach warning” is performed. Further, when the level is lowered from the reception level when the vehicle is stopped, the vehicle ahead is started, but there is a high possibility that the host vehicle remains stopped. Thereby, it can suppress that it stops stopping without noticing that the whole-view vehicle started.

  Moreover, there is a beacon receiver, for example, as an electronic device mounted on a vehicle that emits a microwave. The frequency of the microwave emitted from this beacon receiver falls within the reception frequency band of this embodiment. Therefore, if no countermeasures are taken, detection is performed and a received signal is output, resulting in a false alarm. Since the beacon receiver is close to the radar detector, the microwaves emitted from the beacon receiver are continuously detected from when the radar detector is turned on. On the other hand, the microwave emitted from the vehicle speed measuring device to be alarmed is not normally received when the radar detector is powered on. Therefore, the microwave of the frequency received from the time of power-on is stored, and the reception of the microwave of the stored frequency is excluded from the alarm processing target of this function.

  In the above-described embodiment, the unmodulated continuous wave microwave emitted from the conventional speed measuring device and the FSK-modulated continuous wave microwave emitted from the new vehicle speed measuring device are discriminated. Explained the function. Although the microwave emitted from the H system that can be received by the radar detector of the present embodiment is pulse-modulated, the determination method in the type determination unit 30 determines when the microwave is received. The result is the same determination result as the unmodulated continuous wave microwave. Therefore, it can be distinguished from a microwave subjected to FSK modulation. When discriminating from an unmodulated continuous wave microwave, for example, it is determined by discriminating whether or not the received microwave is a continuous wave.

[Third embodiment]
Fig.8 (a) has shown the principal part of 3rd embodiment of this invention. In the present embodiment, the type determination unit 30 is changed from the second embodiment. The frequency analysis unit 35 ′ is connected to the output of the waveform shaping unit 32, and frequency analysis is performed based on the signal output from the waveform shaping unit 32. The frequency analysis performed here is a determination based on the duty ratio.

  As described in the second embodiment, the rectangular wave signal (g) obtained by shaping the waveform of the sine wave demodulated signal based on the FSK modulated microwave detection signal including FM has a constant period. However, if the signals are based on microwaves output from the same speed measurement device, the duty ratio is constant. Therefore, the frequency analysis unit 35 ′ determines whether the duty ratio of the waveform-shaped signal (g) is within a set range and outputs the determination result. In addition, since the other structure and effect are the same as each embodiment and modification which were mentioned above, the description is abbreviate | omitted.

  FIG. 8B shows a modification of the third embodiment. In this modification, the frequency analysis performed by the frequency analysis unit 35 'is changed. The frequency analysis performed in this modification is performed based on the signal width. If the rectangular wave signal (g) obtained by shaping the waveform of the sine wave demodulated signal as described above is a signal based on the microwave output from the same speed measuring device, the cycle and duty ratio are constant. is there. Therefore, the Hig signal width and the Low signal width constituting one cycle each have a unique value. Therefore, the frequency analysis unit 35 'determines whether or not the signal width of the waveform-shaped signal (g), for example, the High portion is within a set range, and outputs the determination result. The same applies to the determination based on the Low signal width. In addition, since the other structure and effect are the same as each embodiment and modification which were mentioned above, the description is abbreviate | omitted.

  In addition, the specific frequency analysis in the frequency analysis units 35 and 35 ′ of the second embodiment, the third embodiment, and the modifications thereof may be performed individually or in combination with an appropriate plurality. . It is preferable to perform a plurality of combinations since it is possible to determine whether or not the microwave is from the vehicle speed measurement device with higher accuracy. That is, for example, the frequency of the sine wave of the demodulated signal generated when the FSK-modulated microwave is received from the vehicle speed measuring device and the microwave emitted from a device of a different type from the speed measuring device. Even if the frequency of the demodulated signal to be generated is the same, if the duty ratio and the signal width are different, it can be identified on the condition, which is preferable.

  On the other hand, when performing any one frequency analysis, it is preferable to perform based on one period and frequency like 2nd embodiment. For example, when a plurality of traveling lanes exist, the vehicle speed measuring device measures the traveling speed of each vehicle traveling in each traveling lane by emitting a microwave with a different duty ratio for each traveling lane. Is possible. Even in such a case, since the frequency is fixed, it is good to perform based on one cycle / frequency because many devices can be used and versatility is improved.

[Modification]
In each of the above-described embodiments and modifications, as shown in FIG. 9, a region for detecting X-band microwaves and a region for detecting FSK-modulated microwaves are separated in one reception frequency band. The reception frequency band should be set in In this way, the type of microwave may be identified based on the control voltage value and frequency when the microwave is received and the sweep is stopped.

[Fourth embodiment]
FIG. 10 shows a fourth embodiment of the present invention. In the present embodiment, the electronic device is configured to notify an alarm or other information related to traffic or the like based on the acquired information such as the current position information of the vehicle. As shown in FIG. 10, the electronic device includes a control unit 41 that controls the entire control. The control unit 41 is electrically connected to various devices such as a GPS reception unit 42, a microwave reception unit 43, a wireless reception unit 44, a display unit 45, a speaker 46, a storage unit 47, and a memory card reader 48. A memory card 49 is detachably attached to the memory card reader 48.

  The correspondence between the above-described embodiments and modifications will be described. The display unit 45 and the speaker 46 correspond to the alarm unit 23, the control unit 41 corresponds to the control unit 22, and the microwave reception unit 43 is a double superheterodyne type. And the hardware components of the processing units after the detector 16. When each processing unit after the detector 16 is configured by software, it is incorporated as one function of the control unit 41. In the present embodiment, the function of issuing an alarm when receiving the predetermined microwave described in each of the above-described embodiments and modifications is realized by the microwave receiving unit 43, the control unit 41, the display unit 45, and the speaker 46. The

  The control unit 41 is a microcomputer including a CPU, a ROM, a RAM, a nonvolatile memory, an I / O, and the like. From the various input devices (the GPS reception unit 42, the microwave reception unit 43, the wireless reception unit 44, and the like). A predetermined process is executed based on the input information, and a predetermined alarm / message or information is output using an output device (display unit 45, speaker 46, etc.).

  The display unit 45 is, for example, a liquid crystal display or an EL display. For example, the control unit 41 controls the display unit 45 to display a desired image. The control unit 41 controls the speaker 46 to output a desired sound.

  The memory card reader 48 is an interface for accessing the memory card 49. The control unit 41 reads information stored in the memory card 49 via the memory card reader 48 and writes the memory contents of the storage unit 47 and the control unit 41 to the memory card 49.

  The storage unit 47 is a nonvolatile storage element that stores various types of information. The storage unit 47 is, for example, an EEPROM, a flash memory, a hard disk drive or the like externally attached to or inside the microcomputer of the control unit 41.

  The storage unit 47 stores map data, image data displayed on the display unit 45, sound data output from the speaker 46, and various databases. As an example of various databases, there are a first DB and a second DB. In the first DB, information related to the target to be notified to the driver is stored. Targets include, for example, speed measuring devices (including speed measuring devices that emit radar waves (microwaves) such as radar, and speed measuring devices that do not emit radar waves such as loop coils), speed limit switching points, Enforcement area, inspection area, banned monitoring area, N system, traffic monitoring system, intersection monitoring point, signal ignorance suppression system, police station, accident-prone area, on-vehicle frequent occurrence area, sudden / continuous curve (highway), branch / Junction point (highway), ETC lane advance guidance (highway), service area (highway), parking area (highway), parking area (highway), highway oasis (highway), smart interchange (highway) , PA / SA petrol station (highway), tunnel (highway), highway radio reception area ( Fast road), the border announcement, the way of the station, there is a view point parking and the like. Hereinafter, the target notified to the driver is also referred to as a notification target. In the first DB, information indicating the type of the notification object, latitude and longitude information indicating the position of the notification object, schematic diagram or photo data displayed on the display unit 45, and sound output from the speaker 46 Data is stored in association with each other.

  In the second DB, polygon data capable of specifying an administrative division based on the position information is stored. Administrative divisions are established for each municipality. Hereinafter, an area represented by an administrative division is also referred to as a division area. The polygon data is associated with area identification information for identifying the partitioned area. The control unit 41 refers to the second DB on the basis of the position information output from the GPS receiving unit 42, and thus the area identification information for identifying the partitioned area where the host vehicle is located is smaller than the prefecture unit. It can be specified on a municipal basis. In addition, the area | region represented by the division area in this invention is not limited to a municipality, You may represent another area | region.

  The database is stored in the storage unit 47 when the radar detector is shipped. The database can be updated by a known method. For example, the memory card 49 storing the update information is attached to the memory card reader 48. When the data stored in the memory card 49 has update information about new alarm target information (position information including longitude / latitude, type information, etc.), the control unit 41 reads the update information and stores the update information. The data is stored (downloaded) in the database in 47 and the data in the database is updated.

  The GPS receiver 42 is a radio module for receiving radio signals transmitted from GPS satellites. The GPS receiver 42 detects and outputs position information of the host vehicle based on the received radio signal. The position information is the latitude and longitude of the vehicle position. The control unit 41 refers to the database based on the position information output from the GPS reception unit 42 to identify a notification object near the host vehicle, and refers to the storage unit 47 and is necessary for notification. Information is acquired and notified using the display unit 45 and the speaker 46.

  The wireless reception unit 44 is a wireless module for receiving a wireless signal. Specific examples of radio signals received by the radio receiver 44 include radio signals transmitted from the enforcement communication radio, digital radio signals transmitted / received between the police headquarters and the mobile station, and police mobile phones Examples thereof include radio signals used in the system and radio signals transmitted from emergency vehicles. The radio reception unit 44 scans the frequency of the radio signal to be detected, and outputs a detection signal when a radio signal is received at the scanned frequency.

  The control unit 41 uses the radio type of the received radio signal as a key to access the first DB of the storage unit 47, and schematically shows that the radio corresponding to the frequency stored in the first DB for each radio type is received. Is displayed on the display unit 45 as an alarm screen. Further, the control unit 41 reads out voice data stored for each wireless type in the first DB of the storage unit 47 and outputs an alarm sound indicating the type of wireless from the speaker 46. For example, when a control radio is received, a voice is output like “control radio. Speed attention”. Since the alarm / informing function other than the alarm accompanying microwave reception is the same as the conventional one, detailed description thereof is omitted.

[Basic configuration of traffic monitoring information notification function]
And in this embodiment, the traffic monitoring information alerting | reporting function which alert | reports traffic monitoring information, such as public control information, is provided. The function notifies the public control information when there is public control information indicating traffic monitoring activities disclosed in the surrounding area based on the current position of the vehicle. Public control information is, for example, regularly released and updated by the Metropolitan Police Department and prefectural police. Therefore, in the present embodiment, the public control information is stored in the memory card 49, and the data can be updated in the electronic device.

  The memory card 49 stores a third DB that stores a plurality of traffic monitoring information. The traffic monitoring activity is information relating to the monitoring activity for promoting safe driving. One example of surveillance activities is police enforcement or inspection. Surveillance activities occur irregularly at unspecified locations. The control unit 41 refers to the third DB to identify details of the monitoring activity being performed in the vicinity of the host vehicle, and notifies in accordance with predetermined notification conditions.

  Details of the third DB will be described with reference to FIG. Of the information stored in the indexes 1 to 15, the information stored in the lower row corresponds to the traffic monitoring information. The traffic monitoring information includes the “prefecture”, “start date”, “start time”, “end date”, “end time” where the monitoring activities are carried out, “the jurisdiction” police station that conducts the monitoring activities, and “implementation” "Location" is associated. For example, the information of index 2 in FIG. 11 ("start date: 20110307" "start time: 12h00m" "end date: 20110307" "end time: 18h00m" "jurisdiction: Iwate Prefectural Police" "location: Kuzumaki-cho: 302" , "Traffic Monitoring Information: [Regulation] Afternoon Iwate Prefectural Police ~") is under the jurisdiction of Iwate Prefectural Police from 12:00 to 18:00 on March 7, 2011 in any area of Kuzumaki-cho. Is meant to be done. Of the “implementation place”, 302 is area identification information for specifying a municipality.

  As traffic monitoring information, text information related to monitoring activities is stored. The text information stored as the traffic monitoring information is used as it is as a message displayed on the display unit 45. The category of the monitoring activity is stored in the portion surrounded by [] in the text information. The text information stored as traffic monitoring information is composed of “what”, “when”, and “where” so that the driver can grasp the contents even while driving (while watching the flicker). Is spelled in a single sentence. The “what” information indicates the contents of the control such as “speed violation”, “drinking”, “pause”, and the like. The “when” information indicates a time zone or date when the monitoring activity is performed. The “where” information indicates, for example, an address or a route on which the monitoring activity is performed.

  The traffic monitoring information is information that has been converted into data based on a predetermined format, which is made public through the homepages (hereinafter referred to as “HP”) of prefectural police nationwide. The control unit 41 displays a message based on the traffic monitoring information on the display unit 45 as a telop at a location and time according to the content. The driver becomes aware of the message displayed in the telop, and thus tries to drive safely. The traffic monitoring information includes the type of monitoring activity (“what”), the period during which the monitoring activity is performed (“when”), and the region where the monitoring activity is performed (“where”). . For this reason, when a message is created based on the traffic monitoring information and notified to the driver, the driver can recognize, for example, the priority items of the control as the type of the monitoring activity. The priority items of the control include, for example, overspeed, overloading, seat belts, drunk driving, signal ignorance, and the like. Further, for example, the driver can recognize the police jurisdiction, the route, the municipality, etc. as the area where the monitoring activity is performed. By these, the driver can grasp the traffic monitoring information in detail and perform the driving considering the traffic safety by paying particular attention to these points. Hereinafter, information related to monitoring activities, which is publicized through the websites of the prefectural police nationwide, is collectively referred to as public control information.

  The information stored in the third DB is created when the operator converts the control information published through the HPs of the prefectural police nationwide into data. As shown in FIG. 11, the implementation date, time zone, place, type, and the like are extracted from the published public control information in the same language as much as possible, converted into data, and associated with the traffic monitoring information. Since the public control information is published through the HP of each prefectural police, as shown in FIG. 11, each traffic monitoring information is collected for each prefectural government. In addition, each piece of information is one item for each date, time zone, jurisdiction, municipality, or control type.

  The third DB including the traffic monitoring information created by converting the public control information into data is downloaded and acquired by the user from the dedicated HP. The downloaded third DB is stored in the memory card 49. By setting the memory card 49 storing the third DB in the memory card reader 48, the public control information notification function can be used.

  The control unit 41 accesses the third DB stored in the memory card 49 based on the acquired current position of the host vehicle and notifies the necessary public information. Specifically, it is as follows. When the own vehicle position is specified for the first time based on the position information output from the GPS receiving unit 42, and when there is a change in the partition area including the own vehicle position, the control unit 41 determines whether the memory card reader 48 The set memory card 49 is accessed. When the section area where the host vehicle is located is determined, the traffic monitoring information related to the monitoring activity performed in the nearest area is read from the third DB stored in the memory card 49. The control unit 41 performs display on the display screen 50 of the display unit 45 based on the read traffic monitoring information (see FIG. 12).

  With reference to FIG. 12 which shows an example of the alerting | reporting aspect of the traffic monitoring information which exists in the division area where the own vehicle position is contained, the alerting | reporting function, such as public control information of this embodiment, is demonstrated. The display screen 50 is provided with a main display area 51 and a sub display area 52. The main display area 51 is an area for displaying an image for indicating the positional relationship between the host vehicle and the notification object. The sub display area 52 is an area for displaying a message regarding the monitoring activity in relation to the present embodiment. It is also a status area that displays various statuses.

  In the main display area 51, an area 511 for displaying a map image, an area 512 for displaying the type of the notification target object and the distance to the notification target object (in the figure, there is no notification target object, and is not displayed), An area 513 for displaying the traveling speed of the vehicle, an area 514 for displaying the display mode and the current time, the route number of the road on which the vehicle is traveling (for example, national highway No. 00, prefectural road 00, etc.) and common names (00 streets) A display area 515 and the like are provided. By displaying the route number, etc. of the current road that is running, for example, when a route number such as “National road 〇” or “Prefectural road 〇” is shown in the public control information, It is good because it can be confirmed whether the road.

  The control unit 41 reads out map data around the host vehicle position from the storage unit 47, generates a map image, and displays the map image in the area 511. The range of the map image displayed in the area 511 in the main display area 51 is determined based on the setting by the driver. On the map image displayed in the area 511, the own vehicle icon 61 and a target icon indicating the position and type of the notification object are displayed in an overlapping manner. The own vehicle icon 61 is for indicating the position of the own vehicle with respect to the map image. The control unit 41 specifies the host vehicle position based on the position information output from the GPS receiving unit 42, and displays the host vehicle icon 61 superimposed on a portion corresponding to the host vehicle position in the map image.

  The target icon is for indicating the position where the notification object is installed with respect to the map image. The graphic displayed inside the target icon indicates the type of notification object. The control unit 41 specifies the position of the notification object based on the second DB, and displays the target icon on the portion corresponding to the position of the notification object in the map image. In addition, a graphic indicating the type of notification object is displayed inside the target icon. Further, the type of the notification object and the distance to the notification object are displayed in area 512.

  The sub display area 52 is arranged below the main display area 51. The sub display area 52 may be always displayed, but it may be displayed so as to appear like a telop and overlap the main display area 51 when displaying a message regarding the monitoring activity. In this way, when the message about the monitoring activity is not displayed, the sub display area 52 is not displayed, the main display area 51 can be displayed in the full display screen 50, and the sub display area 52 appears. Even if the screen is not watched, it is preferable because the driver can notice something happened. And the driver | operator can understand the content by reading the message regarding specific monitoring activity by seeing the display screen 50 after that.

  The message displayed in the sub display area 52 is created based on the traffic monitoring information stored in the third DB stored in the memory card 49. The message includes information such as the enforcement date, time, enforcement type, enforcement location (route, jurisdiction, etc.). In addition, since the content of the public control information published by each prefectural police is different, the displayed content varies depending on the prefectural government. When the number of traffic monitoring information included in the message is 2 or more, the number of characters in the message increases, so the control unit 41 displays the message in the sub display area 52 by teloping it.

  The message includes a plurality of phases divided for each category of traffic monitoring information. Each phase includes one or more traffic monitoring information. When a plurality of traffic monitoring information is included in one phase, these are displayed in order. At the beginning of each phase, a title indicating an overview of the traffic monitoring information is displayed. In this way, the message is created by classifying a plurality of traffic monitoring information to be notified to the driver for each category, and is displayed in the sub display area 52. As a result, the driver can easily recognize the information related to the monitoring activity for each category. Note that the number of characters that can be registered in one phase is limited to, for example, 128 full-width characters (256 bytes in terms of bytes). As a result, the driver can grasp the contents while driving. When the number of characters that can be registered in one phase exceeds 128 characters, the traffic monitoring information is further classified into more detailed categories.

  When the created message does not fit in the sub display area 52, the control unit 41 scrolls and displays the message. When the driver visually recognizes the display unit 45 during driving, the driver cannot display the display unit 45 for a long time during driving. This is because there is a possibility that cannot be recognized accurately. On the other hand, the electronic device of this embodiment classifies the text-based message created based on the traffic monitoring information for each category and scrolls the sub-display area 52 to display the sub-display area 52 at a time. It is possible to reduce the amount of information of the displayed message and increase the size of the displayed text. Accordingly, the driver can accurately recognize the message displayed in the sub display area 52 even when the display unit 45 is repeatedly viewed at short intervals during driving.

  In the above description, the public monitoring information is registered in the third DB. However, the present invention is not limited to this, and the speed control announced by the police for safe driving, separately from the public monitoring information. The guide information is also registered, and when the current position of the host vehicle enters an area specified by the speed control information, the control unit 41 notifies the information.

[Problems and solutions in the basic configuration of the traffic monitoring information notification function: Public control route warning]
By the way, the traffic monitoring information notification function for notifying the traffic monitoring information such as the speed control guideline information and the public control information using the sub display area 52 described above is based on characters in the sub display area 52 provided at the lower part of the screen in the target area. There is a problem that the target road is difficult to understand because of notification only.

  Among the traffic monitoring information, there is information that discloses road specifying information for specifying a road such as a specific route number or street name being monitored. For example, index 8 is “National highway 45”, and index 9 is “national highway 106”. Therefore, in the present embodiment, when the traffic monitoring information related to the current position includes road identification information such as a target point or a route number or a common name, notification in a manner different from that of other traffic control information is performed.

  The notification in a different mode is to perform notification that makes the target road easy to understand. For example, a map image displayed in the main display area 51 may be used for the notification that is easy to understand. By using the map image, the driver can easily understand the existence of the target road. Further, for example, the display mode of the message when traveling on the target road may be conspicuous. By doing so, it is possible to recognize the road currently being traveled as the target road when the display mode of the message is conspicuous. It is better to combine them.

  A specific example is as follows. FIG. 11A shows a display example when entering a route on which public control information is issued. Based on the current position information acquired from the GPS receiving unit 42, the control unit 41 identifies a road that travels from map data or the like stored in the storage unit 47, and traffic monitoring information related to monitoring activities being performed in the nearest region. In addition, when the specified road exists, the control information of the route is output to the telop displayed in the sub display area 52 by alternately flashing red and white for each item. The order of the items is as follows: title (displayed as [public control] in the figure) → road name → address or intersection name → control type → date and time → jurisdiction name.

  The display of the telop in the display mode may be performed, for example, triggered by entering the route on which the public control information is issued. As described above, when there is a plurality of traffic control information, each information is displayed in order. However, when entering the route, it is preferable to display a corresponding telop by an interruption process. Since the corresponding telop is displayed immediately after the entry, the public control information on the road can be obtained quickly, and it can contribute to traffic safety. In addition, it is preferable to display a telop as it enters, since it is possible to intuitively understand the relevance to the road on which it is traveling. And it is good to display the said telop repeatedly while drive | working the said road.

  In addition, the control unit 41 displays the traveling road R1 displayed in the main display area 51 and whose monitoring activity is designated by the public control information in a conspicuous manner. As a conspicuous aspect, in this embodiment, it draws with a conspicuous color (for example, red). For example, drawing in red makes it easier to get attention, and by matching with the display color of the message displayed in the sub display area 52, the fact that the driver is driving on a road where public control is being performed on the driver, It can be easily and reliably recognized. As a conspicuous aspect, for example, a wide road width may be drawn. By drawing the road width wider, it is better that the roads that are under public control stand out more easily than other roads. In addition, various methods such as blinking and blinking the colored part of the road can be adopted. However, drawing in a different color (for example, red) as in the present embodiment is preferable because it can be performed by a simple process of changing the display color and can be focused without disturbing the driving.

  In addition, the message displayed in the sub display area 52 may display the public control information on the road repeatedly while the road is running. In this way, even if the driver misses one notification, the information can be surely known.

  In addition, since there are usually public control information other than that for the road, a message regarding other public control information may be displayed as appropriate. In this way, you can know the public control information of nearby neighborhoods other than the road you are driving, and recognize the public control information about other roads that you plan to travel in the event of a right or left turn at an intersection in advance. It is good because it can contribute to safe driving. In this case, it is preferable not to change the display color of the road. Here, since the color of the road that is running remains red, it is only necessary to understand that there is public control information on the road that is running even if no telop is displayed.

  FIG.11 (b) has shown the example of a display when approaching the route where the speed control guideline information is taken out. When the control unit 41 specifies a road to travel from the map data or the like stored in the storage unit 47 based on the current position information acquired from the GPS reception unit 42, and the specified road is specified by the speed control guideline information Then, the control information of the route is output to the telop displayed in the sub display area 52 by alternately flashing blue and white for each item. The order of the items is as follows: title (shown as [speed control guideline] in the figure) → road name → address or intersection name → restricted speed → date and time → jurisdiction name. Control of the display timing of the telop in the display mode may be the same as in the case of the public control information described above, for example.

  In addition, the control unit 41 displays the traveling road R2 specified in the speed control guideline information displayed in the main display area 51 in a conspicuous manner. As a conspicuous aspect, in the present embodiment, the drawing is performed in a color different from normal, and preferably in a color (for example, blue) different from the public control line. By drawing in blue, which is different from the color used when notifying public control (red in the embodiment), it is understood that it is not public control, and by matching the display color of the message displayed in the sub display area 52, the driver On the other hand, it can be easily and reliably recognized that the vehicle is traveling on a road where the speed control guideline is issued. Furthermore, it is preferable to draw a wide road. By drawing the road width wider, it is good that the road where the speed control guideline is performed is more conspicuous than other roads.

  FIG. 11 (c) shows that when the travel route is not a control route and there is control information in the jurisdiction or prefecture (for example, any of public control information, speed control guidelines, and traffic safety movements), the control unit 41 Scrolls the information with characters.

  In addition, the control unit 41 has a function of notifying a road that is performing a monitoring activity or the like, not a running road, so that the road R3 that performs the monitoring activity can be easily recognized. Good. Here, the color of the corresponding road R3 is displayed in red or blue, for example, according to the type. In this way, the road where the control is performed is displayed in the same color as the notification shown in FIGS. 11A and 11B, so there is a road where the control is performed in the vicinity. It is sufficient to know at a glance whether the road is present and if it exists in the vicinity.

[Modification]
The route information may be stored by associating the start point coordinates and the end point coordinates of the route with road specifying information for specifying the route such as the route name (for example, information for identifying the national road 248). It is difficult to directly add coordinate data for public control to road link data, for example, map data is information supplied from a navigation software manufacturer and the information itself is changed. Therefore, it is preferable to match the position of the start point coordinate and the end point coordinate of the route with one of the two coordinates of the start point and the end point of the road link.

  In the configuration in which the route information is stored as the start point coordinates and the end point coordinates of the route, it may be configured to search which road link group constituting the road network corresponds to the route.

  As a search method, for example, the straight line connecting the start point coordinate and the end point coordinate of the route is translated in the vertical direction intersecting with the straight line, and the road link route among the road links intersecting with the translated straight line is selected. It is preferable to pick up a road link in which the information to be specified and the information to specify the route included in the route information indicate the same route, and extract the picked-up road link group as a road link group of the target route. Information for specifying the route of the road link is stored in association with the road link data.

  Sounds may be reported when entering a route with public control information or a route with speed control guidelines. Moreover, it is good not to alert | report sound when approaching a route without these. And the sound to alert | report is good to set it as the sound different from the alarm sound of alerting | reporting target object (it is also called POI). In this way, even if the user does not look at the display unit, the user may be able to distinguish whether the user has approached the notification target or has entered a route with public control information.

  Moreover, it is good to set it as a different sound from the notification sound at the time of approaching the route with the public control information, and the notification sound at the time of entering the route with the speed control guideline. The warning of the notification object on these routes may be performed in a notification mode different from the warning of the notification target outside the route, and in particular, a notification mode that the user feels that the degree of danger is higher.

  In addition, although it is desirable to configure as in the above-described embodiment, since the speed control guideline is not revised as frequently as once every several years, for example, information indicating that the road has the speed control guideline in advance in the road link itself. You may make it add. Similarly, for roads that have had public control information in the past, especially for routes that have had public control information in the past for several times, routes that frequently have public control information, etc. Some information may be added.

  In addition, although it is desirable to configure as in the embodiment, it does not have relevance to public control information etc., and simply overwrites the drawing of the road link data of the map, or draws the road link data of the map. The drawing process may be performed on these routes in advance so as to draw in a color different from that of the route without them.

If the road is bent, for example, at its inflection point, the route information is divided into a plurality of sets of start point coordinates and end point coordinates of the route, stored in association with each other, and searched. It is good to. Each of these start and end points should be aligned with the start and end points of the road link.

Further, the plurality of sets of the start point coordinates and the end point coordinates and the information specifying the route that the route information has may be stored in a many-to-one correspondence and used for searching and extracting the corresponding road link data group.

  The map data stored in the storage unit 47 includes road elevation information. The altitude information is formed at intervals of 5 m, for example. Contour lines are formed by connecting the same height positions of the altitude information. The control unit 41 receives the output of a sensor capable of detecting the height of the vehicle such as an atmospheric pressure sensor, acquires the current vehicle height information, and determines which road is running based on the acquired height information. A function to discriminate is provided.

  For example, when a general road and an expressway overlap each other vertically or are adjacent to each other, the position information output from the GPS receiver 42 does not know which road is running. Further, for example, when traveling near the entrance / exit of an interchange, it may be difficult to specify which road the vehicle was traveling on unless it travels for a while and reaches a position where the general road and the highway are separated.

  In this modification, since the road elevation information is provided, the control unit 41 determines which road elevation information matches the obtained elevation from the obtained current elevation, and accurately determines the road that is currently traveling. judge. The estimated route of travel is judged by comparing the altitude difference data after passing the bifurcation point and the amount of change in altitude due to inertial sensors (atmospheric pressure) or GNSS. Thus, based on the road elevation difference data, it is possible to improve the accuracy of the estimated coordinates in the high-speed / general road determination and GNSS non-positioning areas.

  In the above-described embodiment, the road related to the traffic monitoring information is drawn in a predetermined color. At this time, it may be more conspicuous if blinking is performed. In addition, when the information on the public control and the control guidelines overlap, it is recommended to give priority to the public control. Since the public control information is information that is more urgent and important because the date and time are specifically specified, it is possible to allow the user to recognize the information by giving priority notification. .

  The message displayed in the sub display area 52 may be performed in the form shown in FIG. First, the control unit 41 displays “information type and jurisdiction name” in the sub display area 52 (see FIG. 13A). The information type is information for specifying a specific type of traffic monitoring information such as public control information and control guidelines (in the figure, text display of “speed control guideline”). The jurisdiction name is information that identifies the police in charge (in the figure, the text display of “Azabu Station”). Moreover, it is good to draw together the icon 62 which shows that it is alert | reporting of traffic monitoring information. The icon 62 may correspond to traffic monitoring information, but it may be easier to understand if it corresponds to a specific type of information such as public control information / speed control guideline information. Further, as will be described later, since the content of the message displayed in the sub display area 52 is changed sequentially, the icon 62 indicating specific information such as the public control information / speed control guideline information is used. You can also find out information about what.

  Next, the control unit 41 displays “road identification information” in the sub display area 52 (see FIG. 13B). In the example of the figure, the route number is displayed as “National highway No. 1”. Next, the control unit 41 displays “section and approximate location” where the control or the like is being performed (see FIG. 13C). In the figure, "Akabanebashi intersection-Azabudai" is displayed. In this way, by indicating the section and the general location, when the user is traveling on the road on which the monitoring activity is specified, the user is controlled at the actual traveling location. It is good to understand whether or not there is a crackdown on the road that is running.

  Next, the control unit 41 displays “regulated speed” (see FIG. 14A). This regulated speed is a regulated speed at a place where a monitoring activity such as speed control is designated. In the figure, 50 km is displayed. As shown in the figure, since the current traveling speed (30 km / h in the figure) is displayed on the upper left of the main display area 51, the user can see the current vehicle speed by viewing both displayed on the same screen. If so, it can be understood at a glance whether there is no problem or the speed limit is exceeded, and safe driving can be performed.

  Further, the control unit 41 displays information on “date and time zone” in which the control is performed in the sub display area 52 (see FIG. 14B). By displaying the date and time in this way, the user may know whether or not the control is performed at the present time or in the near future.

  Moreover, in embodiment mentioned above, it has a function which performs a warning when it becomes a predetermined | prescribed approach relationship with the alerting | reporting target object which the present position memorize | stored. One of the notification targets is a “control area”. This “enforcement area” is an area where enforcement is often performed, for example. An interlocking alarm (see FIG. 15) is output based on conditions such as the “control area”, the “control line” designated by the traffic monitoring information, the travel route of the host vehicle, and the date and time. The interlocking information is used to interlock an alarm for a notification target based on position information and an alarm based on traffic monitoring information.

  The interlock alarm start condition is, for example, when the vehicle enters a enforcement area on the enforcement route. Each time the control area is focused, the control unit 41 outputs a control line jingle (for example, a sound such as “pyrrolylorin”) and a sound of “control attention”. The control unit 41 displays the target name of the control area in the sub display area 52 (see FIG. 15A). In the figure, “enforcement area” is displayed. The control unit 41 outputs a control area icon 63 and a control line icon 62 in an overlapping manner to the sub display area 52. In addition, the control unit 41 displays the remaining distance to the target (“680 m” in the figure) and the target direction (arrow 64) in the sub display area 52. The remaining distance and direction are displayed until the vehicle passes.

  Next, the control unit 41 displays “road name” in the sub display area 52 (see FIG. 15B). In the figure, “city road 319 (annular control area)” is displayed.Next, the control unit 41 displays “section and approximate location” in the sub display area 52 (see FIG. 15C). In the following, although not specifically illustrated, the control unit 41 sequentially displays information on “regulated speed” and “date / time and time zone” in the sub display area 52.

  As shown in FIG. 16, the radar detector 80 of the present embodiment is communicably connected to another device via a connection adapter 70, acquires information from the other device, and based on the acquired information. It has a function to notify. Other devices include, for example, optional products such as the look-off detector 81 and the laser FCWS 82, and an OBD mounted on a vehicle. Vehicle information is output periodically (for example, 200 msec) from the vehicle.

  The look-ahead detector 81 detects the look-ahead of the driver who is traveling. The look-ahead detector 81 images the driver's face, obtains the face direction, and periodically outputs angle information for specifying the direction in which the face is facing. The power supply voltage is 5V. The output of the look-off detector 81 is sent to the host product such as the radar detector 80 via the connection adapter 70 and notified using the notification function of the host product.

  The laser FCWS 82 includes various sensors, a CPU, and the like, and issues an alarm according to the traveling speed and the relative distance change amount. An example of the function is, for example, a rapid approach warning (collision warning), a forward-return notice (Stop & Go) when stopped.

  The connection adapter 70 has a power supply function of + 12V and + 5V, a data mixing function, and a command distribution function. The connection adapter 70 includes an MCU 71 that executes each function, a female connector 72 for a host product for connecting a host product, a female connector 73 for an optional product, and a first OBD female connector 74 for connecting to an OBD. Second OBD female connector 75, power connector 76, DC / DC converter 77 that converts + 12V voltage supplied from power connector 76 to + 5V, and the output of DC / DC converter 77 is stepped down to + 3.3V. And a regulator 78 for supplying the power supply voltage of the MCU 71.

  The power connector 76 is linked to the vehicle battery via a car connect cord 97. + 12V power is supplied from the vehicle battery. The supplied + 12V is connected to the + 12V terminal of the host product female connector 72 and the option product female connector 73. The + 5V output from the DC / DC converter 77 is connected to the + 5V terminal of the female connector 72 for host product and the female connector 73 for option product.

  Either the 12V first cable 91 or the 5V second cable 92 is detachably attached to the host product female connector 72. Each of the first cable 91 and the second cable 92 includes male connectors 91a and 92a connected to the female connector for host product 72 at one end, and jacks 91b and 92b for connecting to the terminals of the respective host products at the other end. Have.

  The first cable 91 is a cable for the radar detector 80 operating at 12V and the drive recorder 83. The radar detector 80 and the drive recorder 83 are connected to the connection adapter 70 via the first cable 91. The host product is not limited to this, and for example, there is a navigation device 84 that operates at 5V. The navigation device 84 is connected to the connection adapter 70 via the second cable 92. In addition, the optional product female connector 73 detachably attaches, for example, either a 5V third cable 93 or a 12V fourth cable 94. The power supply function supplies power to the host product and optional products via these cables.

  The transmission / reception terminals of the host product female connector 72, the optional product female connector 73, the first OBD female connector 74, and the second OBD female connector 75 are connected to the transmission / reception terminals of the MCU 71, respectively. A device connected to each connector transmits / receives data to / from the MCU 71 via a transmission / reception terminal of the connector. Then, the MCU 71 transfers the received data to a predetermined device, and realizes a data mixing function and a command distribution function.

  The data mixing function is a function for combining data from an optional product and OBD data in a time-sharing manner and outputting it to the host product. Each optional product is identified by individual header data. For example, OBD data may be appropriately combined and displayed as one aspect of the standby screen.

  Since the OBD data is periodically output at intervals of 200 msec, the MCU 71 transmits the OBD data to the host product every time it receives the OBD data. Accordingly, the MCU 71 periodically transmits OBD data to the host product at the 200 msec interval. The transmission detector 81 and the laser FCWS 82 have different transmission intervals from the transmission intervals of the OBD data. Therefore, the MCU 71 performs time division transmission by appropriately distributing data output from each device having different transmission intervals. As an example of time-division transmission, OBD data is prioritized and transmitted at intervals of 200 msec, and data from other option products and data from the host product are transmitted while not being transmitted. The command distribution function is a function for distributing and sending a command from the host product to each option product. This command is also transmitted while OBD data is not transmitted.

  The function of transmitting such data will be described more specifically. The first OBD cable 95 and the second OBD cable 96 are detachably attached to the first OBD female connector 74 and the second OBD female connector 75, respectively. When mounting on an actual vehicle, either 5V-compliant OBD or 12V-compliant OBD is determined depending on the vehicle, so either one is selected and used.

  The first OBD cable 95 and the second OBD cable 96 are provided with male connectors 95a and 96a connected to the respective female connectors at one end, and OBD adapters 95b and 96b for connecting to the OBD terminal on the vehicle at the other end. Have. The OBD adapters 95b and 96b each have a built-in CPU, appropriately acquire the OBD data output from the vehicle, generate a packet with final destination information and the like, and transmit the packet to the MCU 71.

  The final destination is specified by the ID attached to the connector. A command for simultaneous transmission is also prepared. When the ID is specified by the final destination information stored in the received packet, the MCU 71 transmits the packet to the connector specified by the specified ID. Thereby, the product connected to the designated connector acquires the data transmitted in the packet and uses it in the product. Such use includes, for example, display on a display unit, output of sound using a speaker, recording in a storage unit, use of information for executing various determinations and controls, and the like.

  For example, vehicle speed information, which is one of OBD data, is sent to the laser FCWS 82. The laser FCWS 82 controls whether or not to issue an approach warning based on the acquired vehicle speed information. For example, control is performed such that an alarm is not issued when approaching at a low speed, but an alarm is performed when approaching at a high speed. Even if the laser speed sensor is not provided in the laser FCWS 82, high-performance and high-precision control can be performed using the information of the OBD.

  Further, when the final destination information stored in the received packet has an ID not specified or there is an ID for simultaneous transmission, the MCU 71 transmits the packet to all connectors. Along with this, each product connected to each connector receives a packet all at once. Each product uses data stored in the received packet as necessary.

  In the example shown in FIG. 16, the host product female connector 72 and the option product female connector 73 are provided one by one, and the host product and the option product can be connected one by one. A plurality of female connectors 73 may be installed, or a plurality of optional product female connectors 73 may be installed. By installing a plurality of information, for example, information from a plurality of option products can be given to the host product, or data can be transmitted between a plurality of option products or between a plurality of host products. For example, an image captured by the drive recorder 83 can be sent to the radar detector 80 and displayed on the display unit as a standby screen or other screens.

  For example, the angle information output from the look-off detector 81 is sent to the radar detector 80. When the control unit 41 of the radar detector 80 recognizes that the face has moved up, down, left, and right by a certain angle or more based on the angle information, it performs a predetermined notification. For example, as shown in FIG. 17A, the predetermined notification is displayed by superimposing a warning display unit 65 on the map screen, or, for example, on the standby screen as shown in FIG. 17B. The display unit 65 is superimposed and displayed. The warning display unit 65 is obtained by adding a text “Warning attention” to an area of a predetermined size (for example, a semi-transparent white background).

Further, the erasure timing of the warning display unit 65 is set regardless of whether the sidewalk can be determined based on the output from the look-off detector 81 or regardless of the output from the look-off detector 81, for example. It may be deleted after the displayed time is displayed.
Moreover, it is good to perform the warning by a sound and a sound with the alerting | reporting of said alerting display part 65 or separately from alerting | reporting.

  FIG. 18 shows a display example of the radar detector 80 based on information sent from the laser FCWS 82. The laser FCWS 82 has a function of measuring and outputting the distance to the vehicle ahead. FIG. 18A shows a display example of a collision warning. The collision caution warning displays a warning by displaying the collision caution warning display unit 66 when there is a risk of a collision after several seconds, for example, when the vehicle approaches the vehicle ahead. In the figure, a collision attention event has occurred while the standby screen is being displayed, so the collision warning warning display unit 66 is displayed over the standby screen. However, as in FIG. In some cases, it is displayed in an overlapping manner. This is the same in the following.

  FIG. 18B shows a display example of a warning of approaching attention. The approach caution warning displays a warning by displaying the approach caution warning display section 67, for example, when the inter-vehicle distance from the preceding vehicle is continuously short. FIG. 18C shows a display example of a warning for confirming the front. For example, the forward confirmation warning displays a warning on the front confirmation warning display unit 68 when it is detected that the preceding vehicle has left while the vehicle is stopped waiting for a signal. In this way, when the vehicle is paused while waiting for a signal, the driver is not aware of the green light, and when the preceding vehicle has started, by notifying that fact, the driver can start. .

  In addition, the state where the vehicle is stopped waiting for a signal is, for example, when the map data or the like has signal information position data, and when the vehicle is temporarily stopped near the signal based on the map data It is determined that the car is waiting for a traffic signal. In addition, regardless of the presence or absence of an actual signal, the vehicle may simply be temporarily stopped (for example, the engine is on and the speed is 0, etc.) and the vehicle may be stopped waiting for a signal. In this way, the control can be easily performed.

  In addition, if you do not notice that the preceding vehicle has started during a temporary stop regardless of waiting for a signal, such as when there is a traffic jam, the driver will notice before the horn is sounded from the following vehicle by performing the above simple control, Is also good because you can start.

  Furthermore, as described above, when waiting for a signal is detected based on the position information of the signal and the information is also added to the output condition of the forward confirmation warning, when the vehicle is temporarily stopped in the state of approaching the preceding vehicle when there is no signal In addition, it is advisable to issue a warning for confirming the front. In this way, it is possible to efficiently and appropriately issue a warning for confirming that the preceding vehicle has started during a temporary stop due to a traffic jam.

Further, it is preferable to temporarily stop the vehicle in the state of approaching the preceding vehicle, and to issue a warning for confirming the forward direction when the distance from the preceding vehicle is long in that state. In this way, it is not possible to determine whether a signal is waiting / congested, but it is possible to warn forward confirmation efficiently and appropriately.
When performing the above warning, a warning sound may be output together. Further, for example, the warning display may be turned off after displaying for a certain period of time.

  In addition, angle information is output from the look-off detector 81, but it may be converted into angle information or video / image information taken together with the angle information may be output and sent to the host product.

  Each function described in each of the above-described embodiments and modifications can be replaced or changed by individually or appropriately combining individual elements that embody the technical idea to constitute an electronic device. Moreover, when combining, it is good to take a part of structure and combine with another form. Furthermore, you may comprise another invention which made the one part structure shown to each embodiment and a modification essential. For example, in an electronic device having a function of notifying traffic monitoring information such as public control information according to the fourth embodiment, a function of receiving a continuous wave modulated like a microwave emitted from a new vehicle speed measuring device You may apply to the electronic device which is not equipped with.

  Moreover, in each embodiment and modification mentioned above, traffic monitoring information, such as determination whether the road currently drive | working is specified using road elevation information and it is drive | working the object road specified by road specific information, etc. Although the example applied to an alerting | reporting function was demonstrated, you may use separately from a traffic monitoring information alerting | reporting function.

  In the above-described embodiment and modification, an example in which the present invention is applied to a radar detector as an electronic device has been described. However, the present invention is not limited to this, and may be incorporated as a function of a car navigation device or other electronic devices.

  As described above, various aspects of the present invention have been described using the embodiments and the modifications. However, these embodiments and descriptions are not intended to limit the scope of the present invention, and are for understanding the present invention. It is added that it was provided to contribute. The scope of the present invention is not limited to the configurations or limitations explicitly described in the specification, and includes combinations of various aspects of the present invention disclosed in the present specification. Among the present inventions, the configuration for which a patent is sought is specified in the appended claims, but the present invention is disclosed in this specification even if the configuration is not specified in the claims. I would like to remind you that there is a possibility of claiming this configuration in the future.

DESCRIPTION OF SYMBOLS 11 Antenna 12 1st local oscillator 13 1st mixer 14 2nd local oscillator 15 2nd mixer 16 Detector 17 Local frequency control part 18 Detection determination part 19 Detection continuation determination signal generation part 20 Reception signal generation part 21 Reception intensity Signal generation unit 22 Control unit 23 Alarm unit 30 Type determination unit 31 Demodulated signal selection unit 32 Waveform shaping unit 33 Periodic signal generation unit 34 Modulation determination unit 35 Frequency analysis unit 35 'Frequency analysis unit 41 Control unit 42 GPS reception unit 43 Microwave Reception unit 44 Wireless reception unit 45 Display unit 46 Speaker 47 Storage unit 48 Memory card reader 49 Memory card 50 Display screen 51 Main display region 52 Sub display region 70 Connection adapter 80 Radar detector 81 Looking away detector 82 Laser FCWS
83 Drive recorder 84 Navigation device

Claims (25)

A receiving means for receiving radio waves;
Based on the output signal of the receiving means, it is determined whether or not the alarm target radio wave has been received, a control means for controlling the alarm,
With
The electronic device characterized in that the receiving means receives and detects a non-modulated wave and an FSK modulated wave.   The electronic device according to claim 1, wherein the reception unit is configured to maintain a level of a demodulated signal corresponding to the modulation of the FSK modulated wave at a set level or higher. Type determination means for determining whether or not the received radio wave is the FSK modulated wave,
The electronic device according to claim 1, wherein the control unit controls an alarm based on a determination result of the type determination unit.   4. The electronic apparatus according to claim 3, wherein the type determination unit performs the determination based on whether or not the demodulated signal output from the reception unit includes a signal based on the FSK modulated wave.   The electronic apparatus according to claim 3 or 4, wherein the type determination unit performs the determination based on at least one of a time component and an amplitude component of a demodulated signal output from the reception unit.   6. The electronic apparatus according to claim 5, wherein the determination based on the time component is performed based on a period of a demodulated signal output from the receiving unit.   7. The determination based on the time component is performed based on at least one of a duty ratio and a signal width of a rectangular wave based on a demodulated signal output from the receiving unit. The electronic device described.   The electronic device according to claim 5, wherein the determination based on the time component is performed based on an amplitude width based on a demodulated signal output from the receiving unit.   9. The electronic device according to claim 5, wherein when the modulated continuous wave radio wave that is not an alarm target is detected, the control unit does not perform a normal alarm.   Among a plurality of demodulated signals to be received that are output when the reception frequency band is swept once, two demodulated signals satisfying the set condition are set as a pair, and among the two demodulated signals of the pair When one of the signals is a demodulated signal corresponding to the modulation, it is determined that the modulated continuous wave microwave is received, and the determination based on the other received signal of the two received signals of the pair is not performed. Item 10. The electronic device according to any one of Items 1 to 9.   11. The electronic apparatus according to claim 10, wherein when it is determined that the modulated continuous wave is received based on the pair, the previous determination result is maintained for a predetermined period thereafter. A traffic monitoring information notification function for notifying the display unit of traffic monitoring information related to traffic monitoring activities set in an area including the acquired current position of the vehicle,
When the traffic monitoring information includes road specifying information for specifying a road on which the monitoring activity is performed, notification is performed in a mode different from notification of other traffic monitoring information not including the road specifying information. The electronic device according to claim 1.   The notification in the different mode is performed by notifying the target road of the monitoring activity identified by the road identification information among the roads drawn in the map image where the displayed vehicle exists. The electronic apparatus according to claim 12, wherein the electronic apparatus is provided.   14. The electronic device according to claim 13, wherein the notification that makes the target road of the monitoring activity easy to understand draws the target road of the monitoring activity in a conspicuous color. The traffic monitoring information notification function has a function of displaying display information in text based on traffic monitoring information on the display unit,
15. The electronic apparatus according to claim 13, wherein the notification in the different mode changes a display color of the text.   The electronic device according to claim 15, wherein the display color of the text and the display color of the road are related colors.   The traffic monitoring information includes public control information and speed control guideline information, and has a function of notifying the public control information and speed control guideline information in different modes. The electronic device described.   18. The notification of the different aspect is characterized by notifying traffic monitoring information of a target road when traveling on the target road of the monitoring activity specified by the road specifying information. The electronic device in any one.   The electronic device according to claim 18, wherein when the vehicle is not traveling on the target road, the notification of the different mode regarding the target road is not performed.   The notification in the different mode is to notify the traffic monitoring information of the target road in response to having entered the target road of the monitoring activity specified by the road specifying information. The electronic device in any one.   The notification in the different mode is to notify display information in text based on traffic monitoring information about the target road when the vehicle enters the target road of the monitoring activity specified by the road specifying information. The electronic device according to any one of claims 12 to 20. Memorize road elevation information that identifies the elevation of the road,
Based on the acquired current position information, the acquired information on the current altitude, and the stored road elevation information, a road to be traveled is specified, and notification target information is notified based on the specified road. The electronic device according to claim 12. A connection adapter to which the electronic device according to any one of claims 1 to 22 can be connected,
A device different from the electronic device can be connected simultaneously,
A function of transmitting vehicle information periodically output from the vehicle to the electronic device;
A connection adapter comprising a function of transmitting information output from a device different from the electronic device at an interval different from the vehicle information to the electronic device at a timing when the vehicle information is not transmitted. A connection adapter to which the electronic device according to any one of claims 1 to 22 can be connected,
A device different from the electronic device can be connected simultaneously,
A function of transmitting vehicle information periodically output from the vehicle to the electronic device;
A connection adapter comprising a function of mixing a signal transmitted from a device different from the electronic device and the vehicle information and transmitting the mixed vehicle information to the electronic device.   A program for causing a computer to realize the function of the control means in the electronic device according to any one of claims 1 to 22.