JP2009199265A - Receiving device of road traffic information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a receiving device of road traffic information for displaying a necessary road map to a driver without providing any large capacity storage device such as DVD when a violation detector is present in a close range. <P>SOLUTION: This receiving device 10 of road traffic information is provided with: a GPS receiving device 100; a violation detector alarm device 200 or the like equipped with a location registration data memory 220 in which road traffic information corresponding to a locations is registered, a CPU 201 and a notification part 270; and simple road map data 226 associated with each of the installation locations of speed violation detectors, wherein whether the speed violation detector is present in a close range is checked from installation location information of the speed violation detector from the location registration data memory 220 and current location information of a self-vehicle from a GPS module 120, and when the speed violation detector is present in a close range, a simple road map is displayed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  In order to comply with the speed limit of the automobile, the present invention has a function of comparing the current traveling speed with the speed limit of the road based on the information of the GPS module and notifying the driver of that fact to promote speed compliance. The present invention relates to a receiving device for road traffic information.

Some conventional road traffic information receiving apparatuses have a function of notifying the driver of an automobile of the approach of various monitoring points for monitoring a speed violation of the automobile (see, for example, Patent Document 1).
The above-mentioned various monitoring points are generally called orbis (commonly known as a mouse trap), and include a fixed type and a mobile type. The fixed type includes a radar type and a type equipped with a speed measuring machine (measuring camera) and a speed warning plate. There is also a loop coil type measuring sensor equipped with a camera and a loop sensor. As a next-generation type, what is called an “NH system” that determines the vehicle speed from blurring of photographic images when a traveling vehicle is photographed with a digital camera is being studied. The radar type includes a so-called stealth type that emits a radar wave (radar wave) only for an instant. In addition, there is a device that uses a photoelectric tube type or infrared type measurement sensor to measure the time for a vehicle to pass through a certain section to determine the vehicle speed.

  According to the apparatus described in Patent Document 1, the driver does not notice that the speed limit determined for each travel point has changed during travel, and the car he drives (hereinafter referred to as the own vehicle). However, it may continue to run carelessly while the speed limit is exceeded, and in such cases, it often unfortunately causes an unexpected accident, but it can prevent such an accident from occurring. It is.

FIG. 5 is a block diagram showing a basic configuration of the in-vehicle navigation device described in Patent Document 1. In FIG. This in-vehicle navigation device 500 includes a GPS receiver 501 that receives radio waves from a GPS satellite and outputs GPS positioning data, and controls the entire navigation device based on the positioning data from the GPS receiver 501. 504, a keyboard 505 as an input means for inputting various data, and the map data and various road traffic information existing at the current location are read out from the CD-ROM disk 506 under the control of the system controller 504 and output. As a CD-ROM drive 507, a display unit 508 as a display means for displaying various display data under the control of the system controller 504, and a sound playback means for reproducing and outputting various audio data under the control of the system controller 504 Voice of It is formed of a raw unit 509.
JP-A-9-318371

Next, the operation of the conventional apparatus having the above configuration will be described.
While the vehicle is running, the current position information of the vehicle is always obtained from the GPS module 501. On the other hand, based on the position information, road traffic information indicating whether there is a enforcement machine or the like from the position registration data memory 506 is obtained. If the information is present, the driver is notified of the road traffic information from the notification unit 509 or the like.
In this way, the device of Patent Document 1 warns the driver when approaching the speeding enforcement machine based on the position information obtained by the GPS receiver and information on the speeding enforcement machine of the storage device. It encourages safe driving.
However, even if a warning is received that the speeding policer is approaching, it is difficult for the driver to sensuously know in which direction and how far the speeding policer is located.
Therefore, next time the warning information is displayed, along with the illustration of the speeding enforcement machine, the distance to the speeding enforcement machine such as “how many meters to where the speeding enforcement machine is located” is displayed on the teaching screen every moment. Was done.
However, even if the distance and direction to the speed enforcement machine are displayed on the screen, it is difficult to grasp the situation due to the terrain, so the driver is in what direction and how far the speed enforcement machine is located. It was difficult to understand immediately.

Therefore, the present applicant considered to visually display the positional relationship between the shape of the road on the road and the speeding enforcement machine in order to grasp the situation due to the topography.
First of all, I thought that I had the same map information that the navigation system had, using the location information from the GPS receiver and the information on the speeding enforcement machine built in the road traffic information receiver, Check if the speeding enforcement machine is at a close distance (for example, within 2 km), and if the speeding enforcement machine is at a close distance, display the installation location of the speeding enforcement machine on the screen based on the map information of the navigation system In this way, the driver can visually grasp the situation of the terrain, so he thought that he could sensuously know in which direction and how far away the speeding control machine was located.

However, when I tried to realize such a device, I encountered a big problem.
The map information possessed by the navigation system requires an enormous storage capacity, and for that purpose it must have a large-capacity storage device such as a DVD or a hard disk. In order to simply display the screen of the terrain situation, it was not possible to go back to the flow and increase the size of the device to include a DVD or hard disk.
For such a reason, the screen display of the terrain situation has not been adopted in the field of the road traffic information receiving apparatus in spite of the progress of the navigation system technology. It is thought from.

  The present invention has been made to solve such a problem, and is a small-sized display capable of displaying a road condition satisfying the driver even though it does not have a large-capacity storage device such as a DVD or a hard disk. An object of the present invention is to provide a road traffic information receiving apparatus.

In order to achieve the above object, the invention of the road traffic information receiving device according to claim 1 is:
A road traffic information receiving device for receiving road traffic information in a vehicle and notifying a driver according to the received contents and reception status of the reception, wherein the GPS module calculates the position of the vehicle and the speed of the vehicle; A road registration data memory for registering road traffic information corresponding to the position, a current position and current speed information of the vehicle from the GPS module, and a road traffic corresponding to the current position from the position registration data memory. In a road traffic information receiving device comprising: a CPU that obtains and controls information; and a notification unit that audibly and visually notifies the driver of the road traffic information; Simple road map data corresponding to each is provided in the internal memory of the receiving device, and the CPU speed violation from the location registration data memory Check whether there is a speeding enforcement machine at a close distance from the installation position information of the clamping machine and the current position information of the vehicle from the GPS module. If the speeding enforcement machine exists at a close distance, the speed violation The display of the simple road map corresponding to the visual notification unit is started based on the simple road map data corresponding to the installation position of the enforcement machine.

  According to a second aspect of the present invention, in the road traffic information receiving device according to the first aspect, the installation position information of the speeding enforcement machine from the position registration data memory, the current position of the host vehicle and the traveling direction from the GPS module It is characterized in that it is checked from the information whether there is a speeding enforcement machine in the traveling direction, and when the speeding enforcement machine exists in the traveling direction, display of the simplified road map is started.

  According to a third aspect of the present invention, in the road traffic information receiving apparatus according to the first aspect, when the close distance is an expressway, the distance is 1.0 km to 4.0 km, and when the closest distance is a general road, the distance is 0.5 km to 2.km. It is a certain value within the range of 0 km.

  According to a fourth aspect of the present invention, in the road traffic information receiving device according to the first aspect, the vehicle checks whether the own vehicle has passed through the speeding enforcement machine. The display of the map is terminated, and the driver is taught by displaying an image of the same type of speeding enforcement machine as the speeding enforcement machine.

With the above configuration, according to the first aspect of the present invention, since only the simple road map data corresponding to each installation position of the speed violation control machine is stored, compared with the map information possessed by the navigation system, 1 / 1000 storage capacity is not required, and this level of data can be provided in the internal memory of the receiving apparatus, so that a large-capacity storage apparatus such as a DVD or a hard disk is not required.
In addition, it has been found that the display screen required for the driver is sufficient to display “the positional relationship between the shape of the road on the road and the speeding enforcement machine”. And if you display other information for the driver, such as whether the left and right sides of the road are fields, forests, rivers, lakes, convenience stores, etc., you will frequently see the screen and unnecessary information for safe driving Therefore, the simple road map according to the present invention that does not display information other than the minimum necessary information for these contributes to safe driving for the driver and contributes to reduction of stored data. It is.
According to the second aspect of the present invention, since the image display is started only when the speeding enforcement machine is present in the traveling direction, it is friendly to the driver.
Further, according to the invention described in claim 3, since the case of the highway and the case of the general road are distinguished, both the time from the start of the display of the speeding enforcement machine to the passage of the speeding enforcement machine is displayed. Both will be the same and will be friendly to the driver.
According to the invention described in claim 4, after passing through the speeding enforcement machine, the display of the simple road map is terminated, and an image of the speeding enforcement machine of the same type as the speeding enforcement machine is displayed to show the driver. Because it teaches, the driver can know various kinds of speeding enforcement machines and try to drive safely.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram of an apparatus for receiving road traffic information according to the present invention.
In the figure, 10 is a road traffic information receiving device according to the present invention, 100 is a GPS receiving device, and 200 is an alarm device such as a speed violation control machine.
The GPS receiver 100 is configured as follows.
110 is a solar battery, and 120 is a GPS module. The GPS module includes a GPS receiver 121 and a position detection / velocity calculation unit 122. A signal received by the GPS receiver 121 is processed by the position detection / velocity calculation unit 122 to obtain a distance / position / Speed data is obtained, and the distance / position / speed data, which is the calculation result, is transmitted to the distance / position / speed data receiving unit 210 described below.

The warning device 200 such as a speed violation enforcement machine is configured as follows.
The distance / position / speed data reception unit 210 receives the distance / position / speed data obtained by the position detection / speed calculation unit 122 of the GPS module 120 and sends it to the main control unit (CPU) 201. The main control unit 201 is based on the distance / position / speed data from the GPS module 120 and the “road traffic information” at the positions corresponding to the latitude / longitude of the entire country of Japan that the position registration data memory 220 has. Check if there is a speeding policer in the immediate vicinity of your vehicle. The "road traffic information" mentioned here is equipped with a fixed radar type, speed measuring machine (measuring camera), speed warning board, and a camera and loop sensor as measuring sensors as the above-mentioned speed enforcement equipment (Obis). Loop coil type, "NH system", stealth type, phototube type and infrared type measurement sensors are used to measure the time a vehicle passes through a certain section to determine the vehicle speed, and for mobile type It stores information indicating the type of radar-type enforcement machine mounted on the patrol car roof, signal and installation position, enforcement direction, and the like. Furthermore, according to the present invention, highway and general road data, speed limit data thereof, and overload detection device installation position information 221 are also stored.

The following is a brief description of the speeding enforcement machine.
The X, K, and Z band radar receiver 230 processes the received signal from the high frequency receiver 231 by the signal processor 232 and inputs the processed signal to the main controller 201.
In addition, the wireless reception unit 240 sends a reception signal from the 350 MHz high frequency receiver 241 to the signal level detector / detector 242, detects a signal having a predetermined signal level, and inputs it to the main control unit 201.
Further, the 407 MHz high frequency receiver 243 detects the received signal with the signal level detector 244 and inputs a signal having a predetermined signal level or higher to the main control unit 201. Similarly, a signal received by the 160 MHz band high frequency receiver 245 is detected by a signal level detector 246 and a signal having a predetermined signal level or higher is input to the main controller 201.
The infrared detection unit 250 inputs the infrared signal received by the infrared reception unit 251 to the main control unit 201.

Reference numeral 260 denotes a power supply control unit, which controls the electric energy from the rechargeable battery 261 that charges the electric energy generated by rotating the generator with the engine of the automobile and the electric energy from the solar battery 110 to perform constant voltage control. To supply.
The main control unit 201 outputs an audible alarm signal to the announcement / audio output unit 270 and notifies the speaker 271 of it. In addition, a visual warning signal is output to the image display unit 280.

  Provided by the present invention is an internal memory that records 226 “regulator vs. simple road map data”. The data on the road map data memory 226 for the restriction machine is data obtained by converting the road information within a short distance (about 3 km) of the speed restriction machine for each one of the speed restriction machines in the area. 227 for all speed enforcement machines in the area. This level of data 226 is very small compared to the map information possessed by the navigation system, and does not reach 1/1000. Therefore, since the capacity of the controller-to-simplified road map data 226 according to the present invention can be provided in the internal memory of the receiving apparatus, a large-capacity storage device such as a DVD or a hard disk is not required.

Next, a processing flow according to the first embodiment of the present invention will be described with reference to FIG.
When the road traffic information receiving apparatus starts to operate, the main control unit (CPU) 201, in step 21, from the GPS module 120, the date / time, the latitude / longitude where the vehicle is located, and the current travel speed data of the vehicle. In step 22, the position information of the speeding enforcement machine is received from the position registration data memory 220 (FIG. 1). Based on the received location information of the speeding enforcement machine and the current position from the GPS module 120, it is checked in step 23 whether or not the speeding enforcement machine is in close range. Return to, and repeat the loop until now until the speeding policer is at close range. In this case, the close distance is a certain value within a range of 1.0 km to 4.0 km for a highway and 0.5 km to 2.0 km for a general road. For example, it is set to 3.0 km for a highway and 1.5 km for a general road, and when it falls within this range, display of the road map according to the present invention is started. The value of the close distance on the highway and the general road is changed so that the time from the first time the speeding policer starts to display until it passes through the speeding control machine is the same. This is to avoid giving a sense of incongruity between the expressway and the general road.

  In addition, since the location registration data memory 220 shown in FIG. 1 includes the highway data or the general road data, the road that matches the latitude and longitude is the highway data. If it is found in the road, it is a highway, and if it is found in the general road data, it is a general road.

If the speeding enforcement machine is at a close distance, the process proceeds to step 24, a simple road map corresponding to the enforcement machine is acquired from the “regulator vs. simple road map data” memory 226, and in step 25, the image display unit of FIG. The simple road map is displayed at 280. Note that what kind of simple road map is displayed will be described in detail with reference to FIG.
This display is displayed until it passes through the enforcement machine. After passing through the enforcement machine, the process returns to step 21 to search for the next enforcement machine.

  As described above, according to the first embodiment, whether there is a speeding enforcement device at a close distance from the installation information of the speeding enforcement device from the location registration data memory and the current location information of the own vehicle from the GPS module. When a speed check machine is present at a close distance, the unique simple road map according to the present invention is displayed, so that a large-capacity storage device such as a DVD or a hard disk is not required. In addition, since the driver does not display as much information as possible as to induce side-by-side driving that is not related to driving other than roads, this contributes to safe driving for the driver.

Next, a processing flow according to the second embodiment of the present invention will be described with reference to FIG.
The second embodiment is different from the first embodiment in that the “traveling direction?” Of step 231 is inserted between steps 23 and 24 of the processing flow (FIG. 2) of the first embodiment.
That is, in the processing flow of the first embodiment, as soon as the speeding enforcement machine comes at a close distance in step 23, the process proceeds to step 24 and “obtains a simple road map corresponding to the enforcement machine”. When the vehicle is in the lane opposite to the traveling direction, there is no need to display the road, so the information on the speeding enforcement machine includes the traveling direction and is sent from the GPS module 120 (FIG. 1). Note that the vehicle's direction of travel is included, and using this information, the vehicle is running at step 31 because the speeding enforcement machine is "?" Is checked, and the process proceeds to step 24 only when the result matches.
By doing in this way, it becomes possible to prevent the driver from getting frustrated by canceling useless image display in the case of a speed violation control machine oriented in the opposite lane, which contributes to safe driving.

Next, a display example of the “simple road map” according to the present invention will be described with reference to FIG.
In FIG. 4, (1) is the first image that starts displaying on the image display unit when the speeding enforcement machine is present at a close distance, and as (2) → (3) → (4), It is a screen when the own vehicle gradually approaches the speeding enforcement machine, and (5) is an image when the own vehicle passes the speeding enforcement machine. Note that (6) is an image (described later) based on the third embodiment of the present invention.
First, in (1) to (3), 40 is a simple road map according to the present invention, 41 is a display of the speed limit of the road that is running, 42 is a display of the type of the enforcement machine, and these data are shown in FIG. One position registration data memory 220 is provided with speed limit data and enforcement machine data, so that the latitude and longitude can be known. 43 is the current speed display of the own vehicle, and this value is known because it is sent from the GPS module 120 of FIG. 1 to the CPU 201 side.
The simplified map 40 displays vertical and horizontal grids. For example, one mesh is set to 500 m on an expressway and 250 m on a general road. The lowermost horizontal line 44 is the position of the vehicle. A thick line 45 extending vertically in the center represents a national road, a thin line 46 on the left represents a prefectural road, and a dotted line 47 crossing the national road 45 represents a town road (or a village road). A bold circle T on the national highway 45 represents a control machine.
Returning to (1), this screen is immediately after the start of displaying the simple road map. Therefore, the enforcement machine T has not yet appeared on the screen. The driver can understand whether the own vehicle is traveling on the national road 45, the prefectural road 46, or the town road 47 from the traveling progress so far, road signs, and the shape of the road. By looking at the road map, the driver can visually grasp the shape of the displayed road map, so that the driver can drive with peace of mind.
When proceeding to (2), the enforcement machine T appears on the national road 45. Since it is 5.5 mesh from the vehicle to the enforcement machine T, it can be seen that if it is a general road, it is about 1.3 km with 1 mesh 250 m. Of course, the distance from the own vehicle to the enforcement machine T is informed by voice display as before. By looking at this road map, the driver can visually grasp only the positional relationship between the shape of the displayed road map and the enforcement machine T, so that the driver can drive with peace of mind.
Proceeding to (3), the enforcement machine T on the national road 45 is close to the vehicle and is about 1 km away. This is also notified by voice display as in the conventional case.
Proceeding to (4), the enforcement machine T on the national highway 45 is close to the vehicle and is about 500 meters away. The driver has already tried to drive safely by reducing the speed of the vehicle to the speed limit 50.
In (5), the vehicle passes the enforcement machine T. As described above, since the driver can visually grasp only the positional relationship between the displayed shape of the road map and the enforcement machine T, the driver can drive with peace of mind until he approaches the enforcement machine T.

A third embodiment of the present invention will be described with reference to FIG.
From (1) to (5), the simple road map according to the present invention has been displayed. However, immediately after passing through the control machine T, the display of the simple road map is no longer necessary.
Previously, the screen returned to the normal standby screen from here, but here, as shown in (6), the image of the type of the enforcement machine (here, H system) is displayed for a while, and the speed violation enforcement machine is operated. To increase traffic knowledge by teaching people.

As described above, according to the first aspect of the present invention, only the simple road map data corresponding to each installation position of the speed violation control machine is stored, so that compared with the map information possessed by the navigation system, 1 / 1000 storage capacity is not required, and this level of data can be provided in the internal memory of the receiving apparatus, so that a large-capacity storage apparatus such as a DVD or a hard disk is not required.
It has been found that the display screen required for the driver is sufficient to display the “positional relationship between the shape of the road on the road and the speeding enforcement machine”. And other information for the driver, for example, whether the left and right sides of the road are fields, forests, rivers, lakes, convenience stores, etc., may lead to side-by-side driving and may be unnecessary information for safe driving. Since it has been found out, even if the necessary minimum display is performed for these, excessive information is not displayed, which contributes to safe driving for the driver and to reduction of stored data.
According to the second aspect of the present invention, since the image display is started only when the speeding enforcement machine is present in the traveling direction, it is friendly to the driver.
Further, according to the invention described in claim 3, since the case of the highway and the case of the general road are distinguished, both the time from the start of the display of the speeding enforcement machine to the passage of the speeding enforcement machine is displayed. Both will be the same and will be friendly to the driver.
According to the invention described in claim 4, after passing through the speeding enforcement machine, the display of the simple road map is terminated, and an image of the speeding enforcement machine of the same type as the speeding enforcement machine is displayed to show the driver. Because it teaches, the driver can know various kinds of speeding enforcement machines and try to drive safely.

It is a block diagram of the receiving device of road traffic information concerning the present invention. It is a flowchart of the process which concerns on Example 1 of this invention. It is a flowchart of the process which concerns on Example 2 of this invention. It is a display example of the simple road map which concerns on this invention. 1 is a configuration diagram of an in-vehicle navigation device described in Patent Document 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Receiving device of road traffic information 100 GPS receiving device 110 Solar battery 120 GPS module 121 GPS receiver 122 Position detection / speed calculating unit 200 Alarm device such as speed violation enforcement machine 201 Main control unit (CPU)
210 Distance / Position / Speed Data Receiving Unit 220 Position / Registration Data Memory 221 Expressway / General Road / Limited Speed / Overload Detection Device Data 226 Enforcement Machine vs. Simple Road Map Data Memory 227 Enforcement Machine vs. Easy Road Map Data 1
230 X / K Band Radar Receiver 231 High Frequency Receiver 232 Signal Processor 240 Radio Receiver 241 350 MHz High Frequency Receiver 242 Signal Level Detector / Detector 243 307 MHz High Frequency Receiver 244 Signal Level Detector 245 160 MHz Band High Frequency Receiver 246 Signal level detector 250 Infrared detector 251 Infrared receiver 260 Power supply controller 261 Rechargeable battery 270 Announcement / audio output unit 271 Speaker 280 Image display unit

Claims (4)

A road traffic information receiving device for receiving road traffic information in a vehicle and notifying a driver according to the received contents and reception status of the reception, wherein the GPS module calculates the position of the vehicle and the speed of the vehicle; A road registration data memory for registering road traffic information corresponding to the position, a current position and current speed information of the vehicle from the GPS module, and a road traffic corresponding to the current position from the position registration data memory. In a road traffic information receiving apparatus comprising: a CPU that obtains information and performs control; and an informing unit that audibly and visually notifies the driver of the road traffic information;
Furthermore, the internal memory of the receiving device includes simple road map data corresponding to each installation position of the speed violation enforcement machine, and the CPU includes the location information of the speed violation enforcement machine from the location registration data memory and the Based on the current position information of the vehicle from the GPS module, it is checked whether there is a speeding enforcement machine at a close range, and if the speeding enforcement machine is at a close range, it corresponds to the installation position of the speeding enforcement machine. An apparatus for receiving road traffic information, comprising: starting display of a simple road map corresponding to the visual notification unit based on simple road map data.   The speed violation control device is checked by checking whether or not there is a speed violation control device in the traveling direction from the installation position information of the speed violation control device from the position registration data memory and the current position and traveling direction information of the vehicle from the GPS module. 2. The road traffic information receiving apparatus according to claim 1, wherein when the aircraft is present in the traveling direction, display of the simple road map is started.   2. The road according to claim 1, wherein the close distance is a certain value within a range of 1.0 km to 4.0 km for a highway and 0.5 km to 2.0 km for a general road. Traffic information receiver.   Check if the vehicle has passed the speeding enforcement machine, and if the vehicle has passed the speeding enforcement machine, the display of the simplified road map is terminated, and the speeding enforcement machine of the same type as the speeding enforcement machine is terminated. 2. The road traffic information receiving apparatus according to claim 1, wherein an image is displayed to teach a driver.

Images