JP2000293784A - Accident vehicle display method - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To display an error and a correction amount included in position information displayed on an accident vehicle display device. SOLUTION: In a system for displaying a position of an accident vehicle, a correction amount calculated when a correction is internally performed using GPS internal error information, error information obtained from an in-vehicle sensor, map information, a past position. The information is accumulated, and the error range of the current position accuracy is displayed on the display using the error information included in the position information transmitted from the GPS. By displaying the position error information calculated by the GPS receiver on the map, the accuracy of the position information of the moving object can be easily grasped, and the arrival of the emergency vehicle in the event of an accident can be speeded up. It will be possible to save more lives.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an accident vehicle display system, and more particularly to an accident vehicle display system for displaying an error range.

[0002]

2. Description of the Related Art A system for displaying an accident vehicle is roughly divided into a vehicle device for periodically accumulating position information and monitoring the position information, and a position information transmitted from the vehicle device on a map. And an accident vehicle display device.

[0003] The in-vehicle device has a GPS receiver for acquiring position information, and also has a vehicle sensor such as a gyro sensor or a speed sensor. Also,
It also has a communication device for transmitting the currently stored location information via a wireless line or the like. Further, a map matching technique using a map and a DGPS correction technique are used.

On the other hand, the accident vehicle display device displays a communication device for receiving position information and the like transmitted from the vehicle-mounted device via a wired line or a wireless line, and displays information received by the communication device on a map. Information processing device for performing a process for the purpose. In addition, this accident vehicle display device has map information for displaying the map on the screen, displays the map information in the information processing device, and simultaneously uses the position information sent from the on-board device. The location information is displayed on the map. Further, it has a display for displaying the information.

FIG. 8 shows a position display device of a moving body disclosed in Japanese Patent Application Laid-Open No. 10-62188 as one of conventional examples. This is a position display device for a moving body which has a simple configuration and is low in cost. The mobile display device for command is
The GPS wave receiving unit receives a satellite wave, the VICS receiving unit receives a terrestrial wave including road traffic information, and the positioning unit calculates the terrestrial position of the first mobile unit based on the satellite wave and the terrestrial wave. At the same time, a position information wave including the ground position calculated by the information wave transmitting unit is transmitted. In addition, the mobile display device for the purpose of reception receives the position information wave transmitted by the mobile display device by the information wave receiving unit, and the positioning device unit outputs the second moving signal output by the self-contained navigation device unit. The ground position of the second moving body is calculated based on the position information for calculating the ground position of the body, and the display device section determines the ground position of the first moving body and the position of the second moving body according to an instruction from the positioning device section. Display the ground position.

[0006]

However, since the position information displayed on the accident vehicle display device has an error or a correction amount, the position information may be different from the place where the accident vehicle actually exists. For this reason, when an emergency vehicle arrives at the site where the display of the accident vehicle is performed, there is a problem that the accident vehicle may not exist.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems and to make it possible to easily grasp the accuracy of the position information of a moving object currently displayed on a map.

[0008]

In order to solve the above problems, the present invention provides a system for displaying an accident vehicle,
Accumulation of the error information inside the GPS, the error information obtained from the in-vehicle sensor, the correction amount calculated when the correction is performed internally using the map information, and the past position information are included in the position information transmitted from the GPS. The error range of the current position accuracy is displayed on the display using the error information stored in the display.

With this configuration, a user of the accident vehicle display device can easily grasp the accuracy of the position information of the moving object currently displayed on the map.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION
In an accident vehicle display system for displaying the current position of an accident vehicle at the time of occurrence of an accident, there are provided means for displaying the current position on a map displayed on a screen, and means for displaying an error range radius calculated inside the GPS. Accident vehicle display system, which has the effect of indicating the accuracy of the position information of the moving object.

[0011] The invention described in claim 2 of the present invention is claim 1.
In the accident vehicle display method described in the above, it has a means for displaying the error range radius in a circle or character information,
This has the effect of indicating the accuracy of the position information of the moving object.

According to a third aspect of the present invention, there is provided an accident vehicle display system for displaying a current position of an accident vehicle at the time of occurrence of an accident, a means for displaying the current position on a map displayed on a screen, a gyro sensor, An accident vehicle display system including means for displaying error information obtained from an in-vehicle sensor such as a speed sensor, and has an effect of indicating the accuracy of position information of a moving body.

The invention according to claim 4 of the present invention is the invention according to claim 3.
In the accident vehicle display method described above, the error information display means includes means for displaying the error information as an arrow, a circle, or character information, and has an effect of indicating the accuracy of the position information of the moving body.

According to a fifth aspect of the present invention, there is provided an accident vehicle display system for displaying a current position of an accident vehicle at the time of occurrence of an accident, wherein a means for displaying the current position on a map displayed on a screen and map information are displayed. Means for displaying the amount of correction calculated when the correction is performed internally using the accident vehicle display method, and has the effect of indicating the accuracy of the position information of the moving body.

[0015] The invention according to claim 6 of the present invention is directed to claim 5.
In the accident vehicle display system described above, there is provided a means for displaying the correction amount as an arrow, a circle, or character information, and has an effect of indicating the accuracy of the position information of the moving body.

According to a seventh aspect of the present invention, there is provided an accident vehicle display system for displaying a current position of an accident vehicle at the time of occurrence of an accident, comprising: means for displaying a current position on a map displayed on a screen; Means for accumulating information and displaying error information included in the position information transmitted from the GPS, and has an effect of indicating the accuracy of the position information of the moving object.

The invention according to claim 8 of the present invention is directed to claim 7
In the accident vehicle display method described above, the error information display means includes means for displaying the error information as an arrow, a circle, or character information, and has an effect of indicating the accuracy of the position information of the moving body.

FIG. 1 shows an embodiment of the present invention.
This will be described in detail with reference to FIGS.

(First Embodiment) In a first embodiment of the present invention, the current position of an accident vehicle at the time of an accident is displayed on a map displayed on a screen, and the current position of the vehicle is calculated inside a GPS. It is an accident vehicle display device which displays the error range radius.

FIG. 1 is a functional block diagram of an accident vehicle display device according to a first embodiment of the present invention. In FIG.
The moving body 1 is a vehicle or the like. The GPS receiver 2 uses the GP
This is a device that receives signals from the S satellite and obtains the position. The wireless transmitter 3 is a transmitter such as a vehicle-mounted telephone. The accident vehicle display device 4 is a device that displays the position of the accident vehicle.
The wireless receiver 5 is a receiver such as a vehicle-mounted telephone. The information processing device 6 is a device that converts position information and error information into display data. The display device 7 is a display device such as a liquid crystal display.

The operation of the thus configured accident vehicle display device according to the first embodiment of the present invention will be described. The GPS receiver 2 inside the moving body 1 calculates current position information by receiving radio waves from GPS satellites. However, this location information is the GPS
There are some errors depending on the number and position of satellites. Therefore, in the process of calculating the position information, an error range radius indicating a range including the current position with a certain probability is calculated. The error range radius information that is not normally used is sent to the in-vehicle device or the communication device of the mobile body like the position information, and is transmitted to the accident vehicle display device 4 through a wired line or a wireless line.

The accident vehicle display device 4 that has received the error range radius information inputs the error range radius information to the information processing device 6. In the information processing device 6, based on the position information and the error range radius information, information for displaying a circle whose center is the point indicated by the position information and whose radius is the error range radius is created. The display device 7 displays the accident vehicle 14 and a circle 15 indicating an error range on a map, as shown in FIG. By displaying the created circle information on the map in addition to the position information indicating the in-vehicle device and the moving object, the user of the accident vehicle display device 4 can determine the position of the moving object 1 currently displayed on the map. The accuracy of the information can be easily grasped. In this example, it was described that a circle was displayed on the map. However, the error range may be displayed on the map with characters as shown in FIG.

As described above, in the first embodiment of the present invention, the accident vehicle display device is displayed on the map displayed on the screen.
In addition to displaying the current position of the accident vehicle at the time of the accident,
Since the error range radius calculated inside the GPS is displayed, the accuracy of the position information of the moving object currently displayed on the map can be easily grasped.

(Second Embodiment) In a second embodiment of the present invention, a current position of an accident vehicle at the time of an accident is displayed on a map displayed on a screen, and a gyro sensor, a speed sensor, and the like are used. Is an accident vehicle display method for displaying error information obtained from an in-vehicle sensor.

FIG. 2 is a functional block diagram of an accident vehicle display device according to a second embodiment of the present invention. In FIG.
The sensor 8 is a movement information detector such as a gyro sensor or a speed sensor. The correction unit 9 is a device that corrects position information from the GPS receiver.

The operation of the accident vehicle display device according to the second embodiment of the present invention configured as described above will be described. Inside the moving body 1, in order to determine the position information, a gyro sensor or a speed sensor 8 is used in addition to the GPS receiver 2.
The position information from the GPS receiver 2 is corrected, and the current position is calculated. At this time, since the position information obtained by correcting the position information obtained from the GPS receiver 2 is sent on the accident vehicle display device 4, the GPS receiver 2
Will be displayed at a different location from the location information sent from. The correction information that is not normally used is sent to the in-vehicle device or the communication device of the mobile body, similarly to the position information, and is transmitted to the accident vehicle display device 4 through a wired line or a wireless line.

The accident vehicle display device 4 that has received the correction information sends the correction information to the information processing device 6. Information processing device 6
Then, based on the position information and the correction information, information for displaying the correction amount with an arrow is created. The display device 7 is shown in FIG.
As shown in FIG. 7, an accident vehicle 14 and an arrow 16 indicating a correction amount are displayed on a map. By displaying the arrow information on the map in addition to the position information indicating the moving object 1, the user of the accident vehicle display device 4 can accurately determine the position information of the moving object 1 currently displayed on the map. Can be easily grasped. In this example, an explanation was given in which an arrow is displayed on the map. However, a circle may be displayed on the map as shown in FIG. 5, or a correction amount may be displayed as shown in FIG. May be displayed.

As described above, in the second embodiment of the present invention, the accident vehicle display method is displayed on the map displayed on the screen.
In addition to displaying the current position of the accident vehicle at the time of the accident,
Since the configuration is such that error information obtained from an in-vehicle sensor such as a gyro sensor or a speed sensor is displayed, the accuracy of the position information of the moving object currently displayed on the map can be easily grasped.

(Third Embodiment) In a third embodiment of the present invention, a current position of an accident vehicle at the time of an accident is displayed on a map displayed on a screen, and an internal This is an accident vehicle display method for displaying the correction amount calculated when the correction is made in step (1).

FIG. 3 is a functional block diagram of an accident vehicle display device according to a third embodiment of the present invention. In FIG.
The map information 10 is a storage device that stores a map. The map matching 11 is a process of correcting the position information by applying the position information to the map information.

The operation of the thus configured accident vehicle display device according to the third embodiment of the present invention will be described. In displaying the position of the moving body 1, the accident vehicle display device 4 refers to the map information 10 and performs a map matching process.
The correction is performed so that the position of the moving object is on the road on the map. At this time, since the correction is performed internally, the position is displayed at a position different from the position information actually sent from the mobile unit 1. Therefore, in the information processing device 6 of the accident vehicle display device 4, the correction amount when the correction is performed at the position where the above correction is performed is calculated.

In the information processing device 6, based on the position information and the correction amount calculated inside, information for displaying the correction amount with an arrow is created. As shown in FIG. 6, the display device 7 displays an accident vehicle 14 and an arrow 16 indicating a correction amount on a map. By displaying the created arrow information on the map in addition to the position information indicating the moving object 1, the user of the accident vehicle display device 4 can obtain the position information of the moving object 1 currently displayed on the map. Can be easily grasped. In this example, the description is made such that the arrow is displayed on the map. However, even if the arrow is not displayed, a circle is displayed on the map as shown in FIG. May be displayed.

As described above, in the third embodiment of the present invention, the accident vehicle display system is displayed on a map displayed on the screen.
In addition to displaying the current position of the accident vehicle at the time of the accident,
Since the correction amount calculated when the correction is internally performed using the map information is displayed, the accuracy of the position information of the moving object can be easily grasped.

(Fourth Embodiment) In a fourth embodiment of the present invention, a current position of an accident vehicle at the time of an accident is displayed on a map displayed on a screen, and past position information is stored. This is an accident vehicle display method for displaying error information included in the position information transmitted from the GPS.

FIG. 4 is a functional block diagram of an accident vehicle display device according to a fourth embodiment of the present invention. In FIG.
The past position information 12 is information that records the trajectory of the moving object. The DGPS correction unit 13 is a unit that corrects position information.

The operation of the thus configured accident vehicle display apparatus according to the fourth embodiment of the present invention will be described. In displaying the position of the moving body 1, the accident vehicle display device 4 accumulates past position information, calculates error information included in the position information sent from the GPS, and checks the accuracy of the position information. DGP that corrects position information to enhance
Utilizes S correction technology. At this time, since the correction is performed internally, the position is displayed at a position different from the position information actually sent from the mobile unit 1. Therefore, in the information processing device 6 of the accident vehicle display device 4, the correction amount when the correction is performed at the position where the above correction is performed is calculated.

The information processing device 6 creates information for displaying the correction amount with an arrow based on the position information and the correction amount calculated inside. The display device 7, as shown in FIG.
An accident vehicle 14 and an arrow 16 indicating the correction amount are displayed on the map. By displaying the created arrow information on the map in addition to the position information indicating the moving object 1, the user of the accident vehicle display device 4 can obtain the position information of the moving object 1 currently displayed on the map. Can be easily grasped. In this example, an explanation was given in which an arrow is displayed on the map. However, a circle may be displayed on the map as shown in FIG. 5, or a correction amount may be displayed as shown in FIG. May be displayed.

As described above, in the fourth embodiment of the present invention, the accident vehicle display device is displayed on the map displayed on the screen.
In addition to displaying the current position of the accident vehicle at the time of the accident,
Since the past position information is accumulated and the error information included in the position information transmitted from the GPS is displayed,
The accuracy of the position information of the moving object can be easily grasped.

The present invention can be applied to a system for managing the position of a moving object, such as a wandering elderly person tracking system and a moving object management system, without specifying the accident vehicle display device. By using the present invention, the error range of the position of the moving object can be accurately grasped, and the position of the moving object can be quickly specified.

[0040]

As is apparent from the above description, according to the present invention, an accident vehicle display method for displaying the current position of an accident vehicle at the time of occurrence of an accident is provided by means for displaying the current position on a map displayed on a screen. And means for displaying the error range radius calculated inside the GPS.
The error information of the position calculated by the receiver can be displayed on a map, which makes it possible for emergency vehicles to arrive quickly in the event of an accident and save more lives. Is obtained.

Also, since means for displaying error information obtained from an in-vehicle sensor such as a gyro sensor or a speed sensor is provided, error information when the position calculated by the GPS receiver is corrected is displayed on a map. Is obtained.

Further, since means for displaying the correction amount calculated when the correction is performed internally using the map information is provided,
An effect is obtained that error information when the position calculated by the GPS receiver is corrected can be displayed on a map.

Further, since means for accumulating past position information and displaying error information included in the position information transmitted from the GPS is provided, an error in correcting the position calculated by the GPS receiver is provided. The effect that information can be displayed on a map is obtained.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of an accident vehicle display device according to a first embodiment of the present invention;

FIG. 2 is a functional block diagram of an accident vehicle display device according to a second embodiment of the present invention;

FIG. 3 is a functional block diagram of an accident vehicle display device according to a third embodiment of the present invention;

FIG. 4 is a functional block diagram of an accident vehicle display device according to a fourth embodiment of the present invention;

FIG. 5 is an example of a circle display in the accident vehicle display device according to the first to fourth embodiments of the present invention;

FIG. 6 is an example of an arrow display in the accident vehicle display device according to the second to fourth embodiments of the present invention;

FIG. 7 shows an example of character display in the accident vehicle display device according to the first to fourth embodiments of the present invention;

FIG. 8 is a conventional position display device for a moving object.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Moving body 2 GPS receiver 3 Radio transmitter 4 Accident vehicle display device 5 Radio receiver 6 Information processing device 7 Display device 8 Sensor 9 Correction means 10 Map information 11 Map matching 12 Past position information 13 DGPS correction means 14 Accident vehicle Position 15 Error display circle 16 Error display arrow 17 Error display character

Claims (8)

[Claims] 1. An accident vehicle display system for displaying a current position of an accident vehicle at the time of occurrence of an accident, means for displaying the current position on a map displayed on a screen, and displaying an error range radius calculated inside the GPS. Means for displaying an accident vehicle. 2. The accident vehicle display system according to claim 1, further comprising: means for displaying the error range radius as a circle or character information. 3. An accident vehicle display method for displaying the current position of an accident vehicle at the time of occurrence of an accident, the information being obtained from means for displaying the current position on a map displayed on a screen and an in-vehicle sensor such as a gyro sensor or a speed sensor. Means for displaying error information. 4. The apparatus according to claim 3, further comprising means for displaying the error information as an arrow, a circle, or character information.
The accident vehicle display method described. 5. An accident vehicle display system for displaying the current position of an accident vehicle at the time of occurrence of an accident, wherein a means for displaying the current position on a map displayed on a screen and a correction is internally performed using map information. Means for displaying the calculated correction amount in the accident vehicle. 6. The accident vehicle display system according to claim 5, further comprising means for displaying the correction amount as an arrow, a circle, or character information. 7. An accident vehicle display system for displaying a current position of an accident vehicle at the time of occurrence of an accident, means for displaying a current position on a map displayed on a screen, and storing past position information, which is transmitted from a GPS. Means for displaying error information included in the position information. 8. The apparatus according to claim 7, further comprising means for displaying the error information as an arrow, a circle, or character information.
The accident vehicle display method described.