JP2001281327A - Microwave detector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a microwave detector capable of automatically switching its own operation setting condition. SOLUTION: This microwave detector is provided with a microwave detector body 2 detecting a microwave on the basis of a predetermined operation setting condition and outputting an alarm, a GPS receiving part 3 finding the present position and the moving direction of a vehicle, and an operation setting control part 5 judging whether the present position and the moving direction found in the GPS receiving part match with those registered according to the past movement track record or not, and reading the operation setting condition and switching an operation setting condition in the microwave detector main body if judgement shows mutual agreement. In this way, when the vehicle travels on a route that it used in the past, a switch to the operation setting condition used at that time is automatically carried out in each place, and consequently, a driver can concentrate his attention for driving.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microwave detector, and more particularly to an improvement in a structure for setting a receiving sensitivity and changing an alarm pattern based on a received microwave.

[0002]

2. Description of the Related Art In recent years, a number of automatic speed control devices for controlling speeding offenders have been installed around the road. As an example of an automatic speed control device, a microwave in a predetermined frequency band is emitted toward a vehicle, and the reflected wave is received to measure the traveling speed of the vehicle.

On the other hand, in order to detect the presence of such an automatic speed control device, a microwave detector configured to detect a microwave emitted from the automatic speed control device and output an alarm has been known. ing.

The frequency of the microwave emitted from the automatic speed control device is in the same frequency band as the microwave output from the human body detection sensor in the automatic door. Therefore, if the microwave detector is operated when traveling in the city, a false alarm may be output in response to the microwave output from the human body detection sensor.

When such false alarms are output frequently,
It may be harsh or, on the contrary, the driver may become accustomed to the alarm, and even if the alarm is issued based on the microwave from the automatic speed control device to be detected, it may be determined to be a false alarm.

Therefore, in order to suppress the occurrence of such a problem, for example, the reception sensitivity of a microwave detector is changed, and the reception sensitivity is set low while traveling in a city or the like to make it difficult to respond to a human body detection sensor. When traveling on a highway or the like, the reception sensitivity is increased to reliably detect the microwave from the automatic speed control device and to issue an alarm.

Furthermore, on a highway or the like, since the travel distance per unit time is long, there is a demand to detect the presence of an automatic speed control device as early as possible (a distant position). Due to stopping and other reasons, traveling at very high speeds is rare, and there may be no problem if the presence of the automatic speed control device cannot be detected. For these reasons, there is also a demand to change the setting of the receiving sensitivity. As a specific procedure for changing the reception sensitivity, it is common to select one of the preset reception sensitivities by operating a button of the microwave detector.

In addition, a place where the automatic speed control device is installed, a region where the automatic speed control device is mainly deployed, or
Magazines and other information media have introduced information such as areas where vehicles equipped with a speed measuring device for policing speeding offenders frequently appear. Therefore, when traveling in the corresponding area, the presence of the automatic speed control device or the like can be reliably detected by increasing the reception sensitivity.

[0009]

However, it is troublesome to change the setting of the reception sensitivity of the microwave detector every time in accordance with the traveling region, the traveling route, and the like. It can happen. Furthermore, if an incorrect selection is made, the microwave to be detected cannot be detected properly.

Further, since it is dangerous to change the setting of the reception sensitivity or the like while driving, the setting is changed while the vehicle is temporarily stopped. However, such a temporary stop is complicated. On the contrary, it may hinder smooth running of the vehicle, which is not preferable.

SUMMARY OF THE INVENTION The present invention has been made in view of the above background, and an object of the present invention is to solve the above-mentioned problems and to automatically perform the operation based on the location of a vehicle, a traveling direction, and other traveling conditions. It is an object of the present invention to provide a microwave detector that can change a state setting such as reception sensitivity, can output an alarm under a condition desired by a driver, and can contribute to safe driving.

[0012]

In order to achieve the above-mentioned object, a microwave detector according to the present invention detects a microwave based on a predetermined operation setting condition and outputs an alarm. The apparatus includes a main body, position detecting means for obtaining a current position of the vehicle, and operation setting control means for changing the operation setting condition based on the current position obtained by the position detecting means.

For example, when an operation setting condition in a certain area / position is registered, when the position detecting means detects that the position has been moved, the operation setting control means automatically switches to an operation setting condition suitable for the position. . Therefore, the driver does not need to switch the operation setting condition each time, and can concentrate on driving. In addition, the operation setting condition is switched to an operation setting condition suitable for the position without forgetting to switch, so that effective microwave detection and accompanying alarm output can be performed.

Preferably, the apparatus further comprises direction determining means for determining a moving direction of the vehicle, and the operation setting control means changes the operation setting condition based on a current position and a moving direction. .

On the premise of the above invention (claim 2), there is provided storage means for associating an existing position at the time of receiving a setting command, a moving direction, and an operation setting condition with each other, and the operation setting control means comprises Based on the output from the detection means and the direction determination means, the current position of the vehicle and its movement direction are obtained, and when it matches the existing position and the movement direction stored in the storage means, the microwave detector body A function may be provided for switching the operation setting condition to the operation setting condition stored in the storage means.

That is, when the user often travels along a certain route, it can be seen that the user is traveling on a specific road from the location and the direction of travel. As an example, there is a case where the vehicle enters an expressway from an interchange (and vice versa). In this case, when the vehicle is traveling on a highway, there is a demand to increase the reception sensitivity. And
According to the present invention, when it is determined that the vehicle has entered the expressway from the current position and the moving direction, it is possible to automatically switch to the operation setting condition with high reception sensitivity. Therefore, just before and after the interchange, stop once and switch the sensitivity,
There is no need to ask the passenger to switch, and smooth running is possible.

In the above invention (claim 3), when the operation setting condition is switched, the operation setting condition before switching is stored, and the vehicle is set on the basis of the output from the position detecting means and the direction determining means. The current position of the microwave detector and its moving direction are obtained, and when the current position and the moving direction are opposite to each other, the operation setting condition of the microwave detector main body is switched to the stored switching. It is preferable to provide a function for setting the previous operation setting condition (claim 4).

In this way, if the position is the same as the registered position and the moving direction is reversed, the operation setting condition is restored. That is, in the invention of claim 3, the operation setting conditions are switched when a certain position is moved in a predetermined direction. However, as in claim 4, if the operation setting conditions before the switching are remembered,
Having moved in the opposite direction at the same position as the switching point means that the operation setting conditions when traveling in that movement direction are:
It is preferable to use what you remember. Therefore, by returning to the operation setting conditions before switching at that position, automatic switching can be performed without manual operation for returning to the original state.

As an application of the present invention, for example, in relation to the above-mentioned expressway and interchange,
If the vehicle is entering the expressway and moving in the direction opposite to the approach direction to the expressway, it can be said that the vehicle is traveling from the expressway to the general road. Therefore, by switching to the operation setting conditions before entering the expressway, it is possible to automatically switch to the operation setting conditions suitable for the city.

Further, there is provided area information storage means for storing a certain area and operation setting conditions in the area in association with each other, and the operation setting control means accesses the area information storage means based on the acquired current position. When the position is located in the stored area, the operation setting condition may be switched to the operation setting condition associated with the area (claim 5).
This region may be performed by the user operating an operation button or the like provided on the microwave detector, or may be supplied via various recording media or the like. Also,
The input may be made based on the current position, or if there is map data or the like, an area can be set based on the data.

In this way, for example, in a region where many automatic speed control devices are installed, when moving to a suburb, or when traveling on a strange (not very detailed) land, the reception sensitivity is increased. Then, it is possible to reliably detect the presence of the microwave source and issue an alarm.

Further, there is provided an area storage means for storing a fixed area, and when the area storage means is accessed based on the acquired current position and located in the stored area,
It is preferable to have a function of outputting an alarm (claim 6).

Further, there is provided means for calculating a vehicle speed from an output of the position detecting means, wherein the operation setting control means comprises:
It is more preferable to have a function of switching operation setting conditions in accordance with the calculated vehicle speed.

For example, when the vehicle speed is high, the alarm down is suppressed, and if the vehicle speed is obtained based on the output of the position detecting means, the vehicle speed can be calculated with high accuracy (the time required to move between two points, It is calculated from the distance traveled per unit time, etc.), and there is also an advantage that separate installation and maintenance of a sensor for speed calculation are not required.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of a microwave detector according to the present invention will be described. The present invention is an apparatus mounted on a vehicle for detecting and warning of a microwave in a predetermined frequency band emitted from an automatic speed control apparatus for controlling a speeding person.

FIG. 1 is a block circuit diagram showing a configuration of a main part of the microwave detector 1. As shown in the figure,
The microwave detector 1 detects a microwave in a predetermined frequency band based on the set operation setting conditions, and outputs a warning, and a microwave detector main body 2 and a G that acquires GPS information.
Operation setting control for determining the operation setting conditions of the microwave detector main body 2 based on the outputs of the PS receiving section 3 and the GPS receiving section 3 and giving the effective instruction of the determined operation setting to the microwave detector main body 2 A unit 5 and an instruction input unit 6 for notifying the operation setting control unit 5 of a setting command, an operation setting condition, and the like.

The microwave detector main body 2 supplies a received signal based on the microwave captured via the horn antenna 2a to the microwave receiving section 2b, where the microwave of a desired frequency is detected and the detected signal is output. I do. This detection signal is provided to the reception determination unit 2c, and it is determined whether or not the target microwave has been received. Further, the microwave receiver 2
b, an S-meter output terminal is provided, and a received signal strength output from the output terminal is provided to a received strength determination unit 2d, where a threshold value process is performed to determine whether the received strength is equal to or more than a certain value. .

Then, the judgment results of the reception judgment unit 2c and the reception intensity judgment unit 2d are given to the judgment unit 2e, where it is judged whether or not a new microwave to be detected has been received. This judgment is, for example, an AND process, that is,
A microwave of a predetermined frequency is received by the reception determination unit 2c,
Furthermore, when a signal having a reception strength equal to or higher than a predetermined reference is received by the reception strength determination unit 2d, it can be determined that the signal is a true microwave. The determination method is not limited to this, and it goes without saying that various methods can be used. Then, the functions of the reception determination unit 2c and the reception intensity determination unit 2d may be appropriately changed according to the determination method.

Further, when the determination section 2e determines that a true microwave has been detected, a detection signal is given to the alarm 2f to output a predetermined alarm. The alarm may be a buzzer, a sound, a lamp such as a light LED, or a corresponding indicator such as a display.

The microwave receiver 2b is, for example,
The frequency of the received signal and the output of the local oscillator are mixed by a mixer, the obtained intermediate frequency signal is input to a detector, and a signal of a predetermined frequency is detected to realize a superheterodyne method. In addition, since each processing unit constituting the microwave detector main body 2 is the same as a general configuration used in a conventional microwave detector, a detailed description thereof will be omitted.

The GPS receiving unit 3 receives a GPS signal emitted from the global positioning satellite, measures the current position of the vehicle, and can determine the traveling speed and the traveling direction based on the measured position. I have. Specifically, the receiving antenna 3a and the GPS receiver 3b receive GPS signals emitted from a plurality of satellites, and give the reception to the position information calculation unit 3c, where the current position is calculated based on the reception information. (Longitude, latitude information) is calculated.

The calculated current position information is transmitted to the operation setting control unit 5, the vehicle speed judgment unit 3d and the traveling direction judgment unit 3e.
Given to. For example, the vehicle speed determination unit 3d obtains a moving distance per unit time from position information at a certain point in time and position information after a lapse of a unit time, and can calculate the vehicle speed therefrom. Similarly, the traveling direction determination unit 3e can obtain the moving direction by obtaining the moving vector from the position information at a certain point in time and the position information after a predetermined time.

As described above, when determining the vehicle speed and the moving direction, for example, two memories are prepared, one of which stores the position information at the measurement time, and the other stores a certain time after the measurement time (for example, 2 By storing the position information after two seconds, etc., the vehicle speed and the traveling direction of the vehicle can be determined from the two position information.

In the above-described determination, the determination of the vehicle speed and the traveling direction is performed at a constant sampling interval. Further, the traveling direction is performed when a setting instruction given from the instruction input unit 6 is given.

The determination of the traveling direction does not use the position information obtained by the position information calculation section 3c as described above, but uses, for example, a gyro, a compass, or an acceleration sensor (a plurality of directions can be obtained). Or, if the detection direction is one direction, a plurality of subsequent sensors).

The operation setting control section 5 sets operation setting conditions of the microwave detector main body 2. The operation setting control section 5 has a function of directly setting the operation setting conditions given from the instruction input section 6, and a position information calculation section. It has a function of automatically switching operation setting conditions based on the output of the traveling direction determination unit 3e and the traveling direction determination unit 3e.

The function will be briefly described. When a setting instruction is given from the instruction input unit 6, the position information and the moving direction at that time are acquired and stored in the memory. Thereafter, the position information and the traveling direction sent from the GPS receiving unit 3 are obtained, and the search is performed to determine whether or not the acquired position information matches the traveling direction. The associated setting conditions are read out and set in the microwave detector main body 2. And, specifically, it is as follows.

As shown in FIG. 2, first, the instruction input unit 6 includes a setting command input switch 6a provided on the surface of the microwave detector 1 and a condition input switch for inputting setting conditions for setting the operation. 6b.

The condition input switch 6b is used to manually set the operation setting conditions of the microwave detector main body 2, and includes a reception sensitivity, an alarm type (buzzer, voice, LED only, etc.), and volume. And to enter each condition,
Each may be composed of a separate switch. Also,
The sensitivity, volume, and the like may be selectively selected from a plurality of preset levels using a select button or the like, or may be changed in a stepless manner.

The setting condition input through the condition input switch 6b is stored in the processing unit 7 of the operation setting control unit 5.
The writing unit 7 a stores the setting condition storage unit 8 a in the memory 8. This setting condition storage unit 8
“a” stores the current operation setting condition, and basically operates the condition input switch 6b to store the current setting condition.
If a has been updated, the reading unit 7b reads the updated content, and passes the read content to the setting command unit 7c, and the setting command unit 7c sends a command to switch the operation setting condition to the microwave receiver main body 2. send.

In response to this command, the microwave detector main body 2 increases or decreases the reception sensitivity and adjusts the alarm type and volume. This is the process of changing the operation setting conditions accompanying manual input. Note that the switching operation on the microwave detector main body 2 side is the same as that in the related art, and a detailed description thereof will be omitted.

When the setting command input switch 6a of the instruction input unit 6 is pressed, the control unit 9 of the operation setting control unit 5 recognizes that the setting command input switch 6a has been pressed. The processing unit 7 is notified that the setting command has been issued, that is, the setting command has been issued. Then, the processing unit 7 (setting command unit 7c) acquires the position information and the traveling direction information at that time from the GPS receiving unit 3, reads out the current operation setting conditions stored in the setting condition storage unit 8a, and reads them. The two pieces of information are stored in the setting state storage unit 8b in the memory 8 in association with each other.

Further, the processing section 7 (setting command section 7c)
Position information, traveling direction information, and vehicle speed information output from the GPS receiver 3 are acquired at predetermined sampling intervals, and the following processing is performed. That is, based on the vehicle speed information, if the vehicle speed becomes faster than a certain speed (for example, a speed that can be expected to be traveling on a highway such as 80 km), the reception sensitivity is increased. Conversely, in the case of a constant speed other than the above (for example, a speed such as 40 km or 30 km which can be predicted to be traveling in a city or in a traffic jam), the sensitivity is lowered or an alarm is not output. , The operation setting conditions such as lighting of only the LED are switched.

Further, based on the position information and the moving direction information, the setting state storage section 8b is accessed, and “whether or not there is a setting state in which the two pieces of information match” and “moving direction Whether the information is set in the reverse direction "
Judge.

When the condition is met, the setting condition stored in the setting state storage unit 8b that matches the condition is read out, and the operation setting condition of the microwave receiver main body 2 is set to operate under the setting condition. Switch.

If the above condition is met, the operation setting condition before the switching is returned. That is, the setting condition storage unit 8
The operation setting condition stored in “a” is read, and the operation setting condition of the microwave receiver main body 2 is switched to the read operation setting condition. In addition, the process based on these conditions does not need to be particularly provided. In addition, the condition may be that “the moving direction is different” instead of “the moving direction is opposite”.

Next, an actual application example will be described. FIG. 3 shows a route from a vehicle on which the present embodiment is mounted enters the highway b from the general road a and descends on the highway b from the general road c.

Since the highway b travels at a higher speed than the general roads a and c, the moving distance per unit time is longer, and it is desired to detect the presence of the automatic speed control device from a position as far as possible. In addition, since an expressway is generally isolated from other roads and the like, there is little possibility that a microwave that is mistaken for a microwave emitted by an automatic speed control device, such as traveling in an urban area, is coming. Therefore, the reception sensitivity during traveling on the highway b is higher than traveling on the general roads a and c. Accordingly, the detection sensitivity of the microwave detector main body 2 is set to be high at the point A entering the highway b or at a point before the point A. In this case, in the conventional case, the condition input switch 6b is operated and switched each time, but in the present invention, automatic switching can be performed by the following procedure.

First, the user operates the condition input switch 6b at an appropriate position from the general road a to the highway b to input setting conditions suitable for traveling on the highway b.
set. As a result, the setting condition storage unit 8a stores the setting conditions suitable for traveling on the expressway, and the operation settings of the microwave detector main body 2 are set to the conditions.

Next, at the point A where the vehicle enters the expressway b, the setting command input switch 6a is pressed. Then
Location information of the point A (for example, specified by “latitude, longitude”) and the moving direction at the point A (for example, “east”)
And the setting conditions stored in the setting condition storage unit 8a are stored in the setting state storage unit 8b in association with each other.

Therefore, when the vehicle enters the expressway b from the general road a after that, when passing through the point A, it is detected that "the position is A and the moving direction is east". The operation setting conditions suitable for the expressway stored in the. Are read out and set automatically.

The same can be said for a case where the user descends from the highway b to the general road c at the point B. That is, in the case of a general road, the normal reception sensitivity is lowered, the alarm is changed, and the volume is changed. Therefore, at a point before reaching the point B, the condition input switch 6b is operated to register setting conditions suitable for the general road c, and the setting command input switch 6a is pressed at the point B. As a result, when the vehicle moves from the highway B to the general road c, the operation setting conditions automatically become suitable for the general road c.

Further, once the setting command is set at the point A and the point B as described above, when the vehicle moves in the same direction (the same route) thereafter, the operation setting conditions suitable for the destination are automatically set. The driver can switch, and the driver can concentrate on driving, thus contributing to safe driving.

Further, when the function of the above-mentioned condition or the condition 'which is a modified example thereof is provided, automatically in the case of a route reverse to the set condition (the operation from the instruction input unit 6 is not performed). Operation setting conditions can be switched.

That is, in the condition ', when the position is the same and the direction is different, the operation setting condition before switching is returned. Therefore, for example, the operation setting conditions while traveling on the highway b are manually set, and when the vehicle moves to the general road c via the point B, the operation setting conditions for the general road c are automatically set when passing the point B. Is switched to

Thereafter, when the vehicle travels on the reverse route and enters the highway b from the general road c and passes through the point B, the position coincides and the moving direction (west) is different (not northeast). It automatically switches to the contents stored in the setting condition storage unit 8a before switching, that is, the operation setting condition for the expressway. In this way, by registering one route, the reverse route can be automatically switched.

Also, under the conditions, the traveling direction is not reverse, so the automatic switching cannot be performed. However, also in this case, for example, by setting the positions of the points A and B before joining the highway, Can respond.

Further, in the method described above, for example, FIG.
In the case where the automatic switching is performed at the two positions of the points A and B as shown in (1), the operation setting conditions for the general road a are stored in the setting condition storage unit 8a (whichever of the points A and B). In this case, when the vehicle enters the general road c and the highway b through the reverse route and reaches the point B, the operation setting conditions for the highway b must be set. However, there is a possibility that the one for the general road a may be set.

Therefore, the data structure of the setting state storage section 8b is stored in association with the "setting conditions before switching" in addition to the "setting conditions", "position information" and "traveling direction information" as shown in FIG. In this way, if it is determined that the direction is the reverse direction or a different direction, the “setting conditions before switching” may be read out, and the operation setting conditions of the microwave detector main body 2 may be switched based on the readout. Note that the “setting conditions before switching” correspond to the operation set in the microwave receiver body 2 before the switching when the setting information is automatically switched when the position information matches the moving direction and the setting conditions are automatically switched. This can be realized by storing the setting conditions in the storage area.

FIG. 5 shows a second embodiment of the microwave detector according to the present invention. In the present embodiment, a certain area is set, and the operation setting conditions are switched when the vehicle is located inside or outside the area.

More specifically, as shown in FIG. 5, the microwave detector 1 has a memory 8 provided with a map information storage section 8c. This map information may be high-precision information used in a navigation system, but in the present invention, a target landmark or other landmarks, a reference house,
Since it is sufficient that the position can be specified, it is preferable to prepare separately from the viewpoint of memory capacity. This map information may be stored in the product in advance, or a function of detachably attaching various recording media may be added, and the map information may be stored on the recording medium, and the latest information may be attached. Preferably, the information is made available.

The instruction input section 6 includes a condition input switch 6b and a region information input switch 6c. The condition input switch 6b is for inputting an operation setting condition as in the first embodiment.

The area information input switch 6c is used to specify an area to be set as a certain operation setting condition. For example, using the above-mentioned map information, a specific house (for example, a home) is identified by a telephone number or an address in the map information. Specify (point information) and use it as a reference to make an area (range information) with a radius of rm, or use this point information as a reference to specify how many km (range information) up to east, west, north and south.

FIG. 6 shows an image of this designation. If there is no map information, the range is set based on the current vehicle position. In addition, the setting of this area includes both a case where the inside of the specified range is set as the target area and a case where the outside of the specified range is set as the target area.

Further, by operating the condition input switch 6b,
A setting condition in the set area is input. Then, the processing unit 7 associates the received area (range information) with the setting condition at that time and registers it in the setting state storage unit 8b.

The area information input switch 6c can be operated, for example, when there is no map information, by pressing a certain button to obtain the position information at that time, and to input the range information by setting the reference distance. If the distance is lengthened by the number of times the operation button is pressed in advance, the size can be reduced without providing a monitor or the like.
Further, even in the case of map information, in the case of specification by telephone number (the house into which the telephone number is drawn is set as a reference point), it is sufficient if there is a numeric keypad.

When a monitor is provided and map information is output and displayed on the monitor, for example, a touch panel is provided on the monitor and range information can be designated by touching the monitor screen. This specification method can be adopted either when a reference point is specified and an area is set based on the reference point, or when only a range is specified immediately.

Thus, during actual running, the processing unit 7 obtains the vehicle speed information and the position information output from the GPS receiving unit 3 at a constant sampling interval, and performs the first embodiment based on the speed information. Processing is performed in the same manner as in the embodiment, and based on the position information, it is determined whether or not the current position is within the area specified by the range information stored in the setting state storage unit 8b. The read setting condition is read out and switched to it.

In this way, for example, in the vicinity of the home, the reception sensitivity may be low because the user knows well what is in which location, but it is desired to increase the reception sensitivity in an unknown location or in a suburb. If there is a request such as the above, the operation setting condition can be automatically changed by setting the reference point at home, specifying the suburban area, and increasing the reception sensitivity. Further, depending on the setting conditions and the way of inputting the position information, a place where an erroneous alarm is issued is designated in advance as the position (area, range) information, and the setting conditions are “do not output alarm” or “do not judge (reception sensitivity is not determined) It is possible to prevent false alarms from being issued.

In the present invention, since the normal operation setting conditions set via the condition input switch 6b are stored in the setting condition storage section 8a, the current position is stored in the setting state storage section 8b. If the area does not fall within any of the range information areas, it is preferable to return to the operation setting conditions stored in the setting condition storage unit 8a. Note that the other configuration and operation and effect are the same as those of the above-described first embodiment, and therefore, corresponding members are denoted by the same reference numerals and detailed description thereof will be omitted.

FIG. 7 shows a third embodiment.
This embodiment is based on the second embodiment, and adds an alarm function based on position information. In other words, the position or area where the target to which an alarm is to be issued is present (in each of the embodiments, “position information”) is stored and held in the position information storage unit 8d.

During traveling, the position information storage unit 8
When it comes to the position (within the area) stored in d, the alarm drive command section 7d detects it and operates the alarm 10 to output a predetermined alarm irrespective of the presence or absence of microwave detection. I am trying to do it.

The alarm 10 may be used also as the alarm 2f in the microwave detector main body 2. Further, this position information may be stored in advance similarly to the above-described map information, or may be stored on a recording medium (ROM, R
It is more preferable to make it possible to exchange data (including AM) and to sequentially switch to the latest data.

Since the other constructions and functions and effects are the same as those of the second embodiment, the same reference numerals are given to the corresponding members, and the detailed description thereof will be omitted. Further, it is needless to say that the main part of this embodiment can be applied to the first embodiment.

FIG. 8 shows a fourth embodiment.
This embodiment is based on the first embodiment and incorporates a cancel function that does not output an alarm at a specific position. Specifically, the cancel switch 6 is input to the instruction input unit 6.
The processing unit 7 obtains the position information when the cancel switch 6d is pressed from the position information calculation unit 3c and stores the position information in the cancel position information storage unit 8e. At this time, the acquired position information may be stored as it is, or a predetermined range may be set around the position information.

Thereafter, if the current position information sent from the position information calculation unit 3c matches the cancel position information, no alarm is output regardless of whether or not microwaves are received. In this way, once the microwave detector main body 2 receives the microwave and outputs an alarm, if it is recognized as a word alarm, the user presses the cancel switch 6d at that time, and thereafter passes through the same place. Even if the alarm does not sound.

Of course, this canceling function is not based on the first embodiment, but may be combined with another embodiment, or may be realized by a single canceling function. In addition, other configurations and operational effects are the same as those of the above-described embodiments, and the same reference numerals are given to corresponding members.
A detailed description thereof will be omitted. In each of the above-described embodiments, the switching process of the operation setting condition based on the speed information is performed, but such a function may not necessarily be provided.

[0078]

As described above, in the microwave detector according to the present invention, the running state is checked based on the position information of the vehicle and automatically switched to the operation setting condition set for the running state. This is preferable because the driver can concentrate on driving.

[Brief description of the drawings]

FIG. 1 is a block circuit diagram showing a first embodiment of a microwave detector according to the present invention.

FIG. 2 is an internal structural diagram showing a main part.

FIG. 3 is a diagram for explaining a usage example of the first embodiment of the microwave detector according to the present invention.

FIG. 4 is a diagram showing a modification.

FIG. 5 is an internal structural diagram showing a main part of a second embodiment of the microwave detector according to the present invention.

FIG. 6 is a diagram for explaining a usage example of the second embodiment of the microwave detector according to the present invention.

FIG. 7 is an internal structural diagram showing a main part of a third embodiment of the microwave detector according to the present invention.

FIG. 8 is an internal structural diagram showing a main part of a fourth embodiment of the microwave detector according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Microwave detector 2 Microwave detector main body 2a Horn antenna 2b Microwave receiving part 2c Reception determination part 2d Reception strength determination part 2e Determination part 2f Alarm 3 GPS reception part 3a Reception antenna 3b GPS receiver 3c Position information calculation part 3d vehicle speed judgment unit 3e traveling direction judgment unit 5 operation setting control unit 6 instruction input unit 6a setting command switch 6b condition input switch 6c area information input switch 6d cancel switch 7 processing unit 7a writing unit 7b reading unit 7c setting command unit 7d alarm Drive command unit 8 Memory 8a Setting condition storage unit 8b Setting state storage unit 8c Map information storage unit 8d Position information storage unit 9 Control unit 10 Alarm

Claims (7)

[Claims] 1. A microwave detector main body for detecting a microwave based on a predetermined operation setting condition and outputting an alarm, a position detecting means for obtaining a current position of the vehicle, and a current position obtained by the position detecting means. A microwave detector comprising: operation setting control means for changing the operation setting condition based on the operation setting condition. 2. The vehicle according to claim 1, further comprising a direction determining unit configured to determine a moving direction of the vehicle, wherein the operation setting control unit changes the operation setting condition based on a current position and a moving direction. Item 2. The microwave detector according to Item 1. 3. A storage means for storing an associated position, a moving direction, and an operation setting condition when a setting command is received, wherein the operation setting control means includes an output from the position detection means and an output from the direction determination means. Based on the current position of the vehicle and its movement direction are obtained, and when it matches the existing position and the movement direction stored in the storage means, the operation setting conditions of the microwave detector main body are stored in the storage means. The microwave detector according to claim 2, further comprising a function of switching to the stored operation setting condition. 4. When an operation setting condition is switched, an operation setting condition before switching is stored, and a current position of the vehicle and a moving direction thereof are obtained based on outputs from the position detection means and the direction determination means, A function of setting the operation setting condition of the microwave detector main body to the stored operation setting condition before switching when the position coincides with the existing position stored in the storage means and the moving direction is the opposite direction. The microwave detector according to claim 3, further comprising: 5. An area information storage means for storing a certain area and an operation setting condition in the area in association with each other, wherein the operation setting control means accesses the area information storage means based on the obtained current position. 2. The method according to claim 1, wherein when the position is within the stored area, the operation setting condition is switched to the operation setting condition associated with the area.
3. The microwave detector according to claim 1. 6. An area storage means for storing a certain area, a function of accessing the area storage means based on the acquired current position and outputting a warning when the apparatus is located in the stored area. The microwave detector according to any one of claims 1 to 5. 7. The apparatus according to claim 1, further comprising: means for calculating a vehicle speed from an output of said position detecting means, wherein said operation setting control means has a function of switching operation setting conditions in accordance with the calculated vehicle speed. 7. The microwave detector according to any one of items 1 to 6.