JP2009080661A - Receiving device for road traffic information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a receiving device of road traffic information for automatically displaying emergency vehicle information. <P>SOLUTION: The receiving device of road traffic information is provided with an emergency vehicle database in which the numbers and model names of nationwide emergency vehicles are stored by prefecture, and mesh data in which region meshes determined as longitude/latitude grids on a nationwide map are stored, is configured to specify the prefecture at the current location, by referring to the location information and the mesh data from a GPS module, and extracts the emergency vehicle data of the specified prefecture from the emergency vehicle database so as to notify the notification part of the extracted emergency vehicle data. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an apparatus for receiving road traffic information. More specifically, the present invention relates to an emergency vehicle that avoids the travel path of an emergency vehicle by obtaining information on an emergency vehicle (hereinafter referred to as an emergency vehicle) by a driver. The present invention relates to a road traffic information receiving device equipped with a database of emergency vehicles for enabling smooth and safe driving.

Conventional road traffic information receiving devices include, for example, the approach of various monitoring points for monitoring over the speed limit of a moving object such as the “vehicle-mounted navigation device” disclosed in Patent Document 1, and driving of the moving object. Some have a function to notify the hand. According to this device, the driver does not notice that there has been a change in the speed limit determined for each travel point during driving, and keeps driving unintentionally while his car has exceeded the speed limit. In such cases, there are many cases where unfortunately unforeseen accidents occur, which is effective in preventing such accidents.
Also, even if the driver himself is driving along the flow of vehicles in the lane, it may unfortunately get caught in subtle judgments for each monitoring point. For this reason, the driver suffers an unexpected economic loss such as spending a lot of time or paying a large amount of fines, which is effective for preventing the driver from causing such a situation. Furthermore, it is also effective to know the approach of various monitoring points that exceed the speed limit and arrange their own vehicles so as not to prevent the passage of this emergency vehicle in advance.
The above-mentioned various monitoring points are generally called Orbis, which includes a fixed type and a mobile type, and the fixed type includes a radar type and a speed measuring device (measurement). Camera) and a speed warning board. In addition, there is a loop coil type measurement sensor provided with a camera and a loop sensor. Further, as a next generation type, what is called an “NH type system” that determines the vehicle speed from blurring of photographic images when a traveling vehicle is photographed with a digital camera is being studied. Note that the radar type includes a so-called stealth type that emits a radar wave only instantaneously. Furthermore, there is a device that uses a photoelectric tube type or infrared type measurement sensor to measure the time required for the vehicle to pass through a certain section to determine the vehicle speed. In addition, the mobile type includes, for example, a radar-type enforcement machine mounted on the patrol car roof.

Note that various types of conventional road traffic information receiving apparatuses are manufactured and sold by combining various functions shown below.
First, the receiving apparatus had a shape and structure as shown in FIG. The receiving apparatus of FIG. 6 has the following specifications as a radar wave receiving function.
(1) The reception frequency corresponds to 10.525 GHz (X band) and 24.200 GHz (K band).
(2) Double superheterodyne is adopted as a receiving method.
(3) As the reception sensitivity switching function, three-level control of H / M / L is possible.
(4) As an alarm function at the time of reception, a level-linked buzzer alarm and a warning display LED lamp are provided.
(5) Other functions include voice received when detecting stealth type enforcement equipment, alarm notification function, alarm mute function, alarm dimmer function (function to reduce the amount of LED lamp light), radar wave caused by leaked radio waves from car navigation A function for preventing malfunction of the receiving apparatus is provided.
Moreover, the function of the specification shown below is comprised as a detection function of the own vehicle position and a running direction.
(1) A GPS function for obtaining information about the vehicle position and the traveling direction of the vehicle.
(2) A map information system function for storing map information including monitoring points and knowing the relationship between the acquired vehicle position and travel direction.
(3) Other functions include detecting the infrared rays emitted from a system that measures the vehicle speed using infrared rays, the LED lamp blinking function when approaching a loop control system, the current consumption reduction function by intermittent GPS reception control, and the loop Equipped with a power saving mode function, an Orbis function, and an area cut function that only notify the approach of the system control system.
Furthermore, as a wireless reception function, a function having the following specifications is provided.
(1) The reception frequencies correspond to 350 and 100 MHz (frequency violation frequency) and 407.725 MHz (frequency used by the car locator system) 159.275 to 160.575 MHz (VHF).
(2) Double superheterodyne is adopted as a receiving method.
(3) Each ON / OFF switching is provided as the reception function switching.
(4) As an alarm function at the time of reception, the voice output of the reception voice / notification alarm and the blinking operation of the LED lamp corresponding to 350.100 MHz, the voice output of the notification voice and the blinking operation of the LED lamp corresponding to the car locator system, As VHF correspondence, the voice output of the announcement voice and the blinking operation of the LED lamp are provided.
(5) As a car location mute function, a function of canceling the alarm sound output for the subsequent 120 seconds by a mute operation during the output of the alarm sound at the time of detecting the car locator system is provided.
(6) As a caro care attenuator function, a function for switching the attenuator ON / OFF when receiving a radio wave of the car locator system is provided.
(7) As a car location reception artificial intelligence, it has a function of judging the near / close of a radio wave source and outputting a notification voice.
In addition,
(1) Function to turn on / off the GPS function.
(2) Auto power control function.
(3) Battery voltage detection function.
(4) LSC function (function to control warning output according to the vibration state of the vehicle)
(5) Time dimmer function (function to control the light quantity of the LED lamp based on GPS time information)
(6) Set operation voltage support function (DC 12V corresponding to use of both external power supply and charging, DC 3.6V corresponding to use of built-in rechargeable battery).
(7) Solar battery device (with solar panel). Etc.
In the figure, 81 is a receiving device, 82 is a solar panel, 83 is a GPS built-in part, 84 is a switch, 85 is a volume control, 86 is a power switch, and 87 is various indicators.
Recently, as a product that has cleared all problems such as the orientation of the solar panel, the reception sensitivity of GPS radio waves, the improvement of the reception sensitivity of microwaves with high straightness, and safety such as operation switches, it is shown in FIG. As shown in FIG. 7, which is an improvement of the product shown, the position and orientation of the solar panel on the main body side and the large display have been improved, and the remote controller to be operated is separated from the main body. Radar detectors are on the market.
JP-A-9-318371

However, in the conventional device, it was possible to notify the driver of the police control area by radar detection, or to display and notify the police control area based on the control information stored in the storage device in advance. It is impossible to display the number of emergency vehicles and make the driver aware that the vehicle is an emergency vehicle and give way to the emergency vehicle.
Also, even if you are aware of the problem and have created and possess an emergency vehicle database that stores emergency vehicle numbers and model names nationwide for each prefecture, the display order is the order of the database contents, for example from Hokkaido in the north. When displaying, south Kyushu takes time to display in Okinawa Prefecture, and if it is Aueo order, it takes time to display Wakayama Prefecture in Wa Line, or to display it quickly The driver must enter the current prefecture name directly while driving, which may cause distraction of driving, and it is not possible to know exactly where the current prefecture is. There were drawbacks. Thus, in the past, automobiles were not equipped with an emergency vehicle database that stored emergency vehicle numbers and model names nationwide for each prefecture, and there was a problem in how to display them even if they were installed. There is a problem that displaying emergency vehicles in the corresponding prefecture requires considerable time, labor, and danger, and that it is difficult to respond safely and promptly.
Therefore, the present invention has been made to solve these problems. By promptly and accurately informing the driver of emergency vehicle information, the driver can avoid the emergency vehicle travel path quickly. Therefore, an object of the present invention is to provide a road traffic information receiving device that enables an emergency vehicle to smoothly and safely be driven.

In order to solve the above-mentioned problem, the invention of the road traffic information receiving device according to claim 1 receives road traffic information in an automobile and notifies the driver according to the received contents and reception status of the reception. A GPS module for detecting the position of the automobile and calculating the speed of the automobile, a position registration data memory for registering road traffic information corresponding to the position, and position and speed data from the GPS module. And a CPU that obtains and controls road traffic information corresponding to the current position from the location registration data memory, and a notification unit that audibly or visually notifies the driver of the road traffic information. In the traffic information receiver, emergency vehicle database storing emergency vehicle numbers and model names nationwide for each prefecture, and longitude / latitude on the national map Mesh data storing a regional mesh defined as an eye, and referring to the position information from the GPS module and the mesh data to identify the prefecture of the current position, the emergency vehicle data of the identified prefecture The emergency vehicle data is extracted from the emergency vehicle database, and the extracted emergency vehicle data is notified to the notification unit.
According to a second aspect of the present invention, in the road traffic information receiving apparatus according to the first aspect, the emergency vehicle data includes an emergency vehicle number and a vehicle type.
According to a third aspect of the present invention, in the road traffic information receiving device according to the first or second aspect, in addition to the specified prefecture, emergency vehicle data of one or more prefectures adjacent to the current position is also provided. The notification unit is notified.
According to a fourth aspect of the present invention, in the road traffic information receiving device according to the fourth aspect, the search of the emergency vehicle database starts when the device start button on the remote control side is pressed and ends when the return button is pressed. It is characterized by that.

  According to the present invention, since the mesh data and the emergency vehicle database for each prefecture are installed, the position information from the GPS and the mesh data are referred to specify the current prefecture, and the corresponding metropolis is referred to the database. Since the number list of emergency vehicles in the prefecture and the vehicle type are displayed, the region identification by GPS information and mesh data, and the emergency vehicle number list of the specified region and the display processing of the vehicle type are automatically performed in conjunction, The emergency vehicle search process is speeded up, and the driver can smoothly and safely drive while avoiding adverse effects on the emergency vehicle.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1A and 1B are diagrams for explaining a road traffic information receiving apparatus according to a first embodiment of the present invention. FIG. 1A is a perspective view of a receiving apparatus main body having a large display, and FIG. 1B is separated from the receiver main body. It is a top view of the remote control device used.
On the receiver body side of FIG. 1A, reference numeral 1 denotes a solar panel angle fixing screw that adjusts the opening and closing of the solar panel. Reference numeral 2 denotes a solar panel that receives sunlight to generate electricity and charge the built-in battery. 3 is a built-in GPS antenna that receives signals from GPS satellites, 4 is an infrared receiver that receives infrared rays transmitted from the remote control, and 5 is a radar warning that flashes the intensity of the radar wave in blue. Warning lamp to be displayed, 6 is a GPS lamp that displays the GPS positioning status in red, etc. 7 is green, red, orange, etc. L, S, which displays the power ON / OFF status and the operating status of the hybrid LSC function C lamp, 8 is a radar receiver, EL display that displays a warning screen at the time of GPS warning and reception of various radios, 9 is a power switch, 10 is a speaker that reproduces sound such as warning sound and voice guide, 15, 16 Is an internal memory storing an emergency vehicle database and the like.
On the other hand, on the remote control side of (b), 12 is an up / down button used for setting switching when adjusting the volume or changing various settings, 13 is a left / right button used when selecting a setting menu, 14 is a setting operation decision, ENT button used for operations such as confirmation of passing speed, search function within 1 km, one-skip, etc. 20 is used to set the user memory function, GPS warning point deletion function, etc., and to cancel various setting operations, etc. Back button for use at times, 21 for mute function, demonstration, skip memory, radar mute demo button used for setting radar cancel memory, etc. 22 for switching the BEST select function or checking settings The BEST button to be used, 23 is the power on / off or when referring to the emergency vehicle database. At the time of switching mode is the power button to be used for such.

FIG. 2 is a schematic block diagram of the road traffic information receiving apparatus shown in FIG.
In FIG. 2, FIG. 2 is a schematic block diagram showing the basic functions of the receiver main body. Inside the receiver main body, a main control unit (CPU) 32, a distance / position calculation unit 33, and a position registration data memory 34 are provided. Sending and receiving signals. In the position registration data memory 34, for example, speed limit switching points, control points, accident-prone areas, police stations, orbis speed limits, positions of seven types of speed control machines, positions of the N system, and the like are registered. GPS reception information is always input to the distance position calculation unit 33. Further, the X / Y band radar detection unit 37 processes the received signal from the receiver and inputs it to the main control unit 32. In the high frequency receiving unit 38, reception signals of high frequency receivers of 350 MHz, 407 MHz, and 160 MHz are input to the main control unit 32. The infrared light receiving unit 42 inputs a signal from the remote control to the main control unit 32. The main control unit 32 outputs an alarm sound output to the alarm sound output unit 40 and an alarm signal to the alarm LED display unit 41. In addition, various function setting signals by button operations for various function settings are input from the infrared light receiving unit 42 to the main control unit by infrared communication from a remote controller described later. The power supply unit supplies power from the solar battery 31 and the rechargeable battery 39 to each unit via the power supply control unit 43. The GPS receiving unit 30 includes a GPS receiver and a position detection processing unit. A position detection process is performed on a received signal of the GPS receiver, and a signal is transmitted to and received from the distance / position calculation processing unit 33. Reference numeral 8 denotes an EL display also shown in FIG. Reference numeral 15 denotes a memory that stores an emergency vehicle database that is a feature of the present invention, and stores, for example, database data of prefectures and emergency vehicle numbers and vehicle type names allocated thereto. A mesh data memory 16 stores mesh data (to be described later) stored in the present invention.

FIG. 3 is a diagram showing an example of data display in the emergency vehicle database of the present invention, where (a) shows an example of Tokyo display, and (b) shows an example of Kanagawa display.
In FIG. 3 (a), when the driver is traveling in the Tokyo area, the GPS receiver 30 (FIG. 2) knows the latitude and longitude, so from the mesh data 16 (FIG. 2) described in FIG. The prefecture code corresponding to the latitude and longitude is found to be “13”, and “Tokyo” is specified. If Tokyo is known, the emergency vehicle data memory 15 (FIG. 2) can know the vehicle type and number of the emergency vehicle dispatched to Tokyo, and it can automatically output it (FIG. 2), or can display the alarm LED 41. (Fig. 2)
FIG. 3 is a display example of an emergency vehicle in Tokyo displayed in this way. In FIG. 3A, the area name is Tokyo, the number list is “Adachi 088 xxx-xxx”, “Nerima 055 xx”, “Tama 033 is xxx-xxx”, “Hachioji 055 x” The EL display 8 indicates that the number list of each emergency vehicle indicating “×” and the car “Nerima 055 XX” at the K position indicated by the up / down button 12 is the skyline vehicle type. Yes.
On the left and right of the top column of the figure, the neighboring prefectures near Tokyo where the current position is located also cover “Saitama” and “Kanagawa”. Using the left and right buttons 12 in FIG. 1B, the region name can be switched to an adjacent prefecture. Therefore, when “Kanagawa” is selected, the block moves to the Kanagawa block. As shown in FIG. 3B, the number list is “Yokohama 075 xx-xx”, “Shonan 035 is xx”, “Sagami 023 xxx- “××”, “Kawasaki I ×××”, the number list of each emergency vehicle and the car “Yokohama 075 i ××-×” indicated by the up / down button 12 is bluebird. It is displayed on the EL display 8.
Finally, when the “return” button 20 (FIG. 1B) is pressed, the normal screen is restored.

Note that the mesh data 16 is referred to when the emergency vehicle database 15 is searched. FIG. 4 is a diagram for explaining mesh data used in the present invention. (A) is a definition of the size of the mesh to be used, (b) is a size of the mesh when the mesh is applied to a map of Japan, and (c). Indicates the prefecture code used for each mesh section. Therefore, dividing the Hokkaido area, for example, with the mesh size shown in FIG. 4 (a), a mesh grid is created as shown in FIG. 4 (b). From the prefecture code in FIG. 4 (c), the Hokkaido code is Since it is “1”, “1” is associated with each mesh in this case.
The current example is Hokkaido where there is no neighboring prefecture, but in other prefectures there may be multiple prefectures in one mesh, in which case the code of the prefecture with the largest area is attached. It has become.

FIG. 5 is a flowchart of the processing of the road traffic information receiving apparatus shown in FIG.
Next, a series of operations will be described with reference to the flowchart of FIG.
First, when the flow starts, in the emergency vehicle database function of the main control unit 32, is the start button 23 for starting the emergency vehicle database function pressed? Is determined (S101). Was “start button 23” of this remote control pressed for about 1 second? If this is Yes, the position / calculation unit 33 obtains the position of the host vehicle based on the signal from the GPS receiving unit 30 (S102). The GPS point on the obtained map and the mesh data 16 as shown in FIG. 4 stored in the database are referred to to identify the area, and then the emergency vehicle dispatched to the specified corresponding area is identified. The emergency vehicle database 15 is searched and extracted, and the emergency vehicle number list is automatically displayed as shown in FIG. 3 (S103). The driver can look at this list and give way when the appropriate vehicle approaches.
Finally, if the “return button 20” is pressed on the remote controller (S104), the process proceeds to step S105, where normal processing is performed and the normal screen is restored.
If it is determined in step S101 that the pressed button is not an emergency vehicle database activation operation by the “activation button”, the process proceeds to step S105, and the process proceeds to a monitoring operation of a traffic control radio wave in a normal process.

  As described above, according to the present invention, since the emergency vehicle database and mesh data of the whole country are installed, the position information and mesh data from GPS are referred to accurately and quickly identify the current prefecture, and the database Refer to the emergency vehicle number list of the relevant prefecture and the vehicle type, refer to the area identification by GPS information and mesh data, and the emergency vehicle number list of the specified area and the display process of the vehicle type are linked. Since this is done automatically, the time and effort required for the driver to enter the prefecture can be avoided, the search process for emergency vehicles can be expedited, driving problems on the emergency vehicle can be avoided, and the driver of the emergency vehicle can be smoothly and safely You can drive.

1 is a configuration diagram of a road traffic information receiving apparatus according to Embodiment 1 of the present invention. FIG. It is a schematic block diagram of the receiver main body shown in FIG. It is a figure which shows the example of a data display of the emergency vehicle database of this invention. It is explanatory drawing of the mesh data of this invention. It is a flowchart of a process of the receiver shown in FIG. It is a perspective view of the receiving device of the conventional road traffic information. It is a block diagram of the conventional remote control operation type receiver.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Solar panel fixing screw 2, 31 Solar panel 3 GPS antenna 4, 42 Infrared light-receiving part 5 Warning lamp 6 GPS lamp 7 L. S. C lamp 8 EL display 9 Power switch 10 Speaker 12, 13 Button 14 ENT button 15 Emergency vehicle database 16 Mesh data 20 Return button 21 Mute demo button 22 BEST button 23 Power button 30 GPS receiver 32 Main controller 33 Distance / position Arithmetic unit 34 Location registration data memory 37 Radar detection unit 38 High-frequency wave reception unit 39 Battery 40 Alarm sound 41 Alarm LED

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 received vehicle, wherein the GPS module detects the position of the vehicle and calculates the speed of the vehicle A position registration data memory in which road traffic information corresponding to the position is registered, and position and speed data received from the GPS module, and road traffic information corresponding to the current position is obtained from the position registration data memory for control. In a road traffic information receiving device, comprising: a CPU to perform; and a notification unit that notifies the driver of the road traffic information audibly or visually,
Location information from the GPS module comprising an emergency vehicle database storing emergency vehicle numbers and vehicle type names nationwide for each prefecture, and mesh data storing regional meshes defined as longitude and latitude grids on the national map And referring to the mesh data, identifying the prefecture where the current position is located, extracting emergency vehicle data of the specified prefecture from the emergency vehicle database, and notifying the extracted emergency vehicle data to the notification unit A characteristic road traffic information receiver.   2. The road traffic information receiving apparatus according to claim 1, wherein the emergency vehicle data includes an emergency vehicle number and a vehicle type.   The road traffic information reception according to claim 1 or 2, wherein in addition to the specified prefecture, emergency vehicle data of one or more prefectures adjacent to the current position is also notified to the notification unit. apparatus.   5. The road traffic information receiving device according to claim 4, wherein the search of the emergency vehicle database starts when the device activation button on the remote control side is pressed and ends when the return button is pressed.

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