JP-7854745-B2 - System and Program

Inventors

• 水野 隆之
• 片桐 康晴

Assignees

• 株式会社ユピテル

Dates

Publication Date

20260507

Application Date

20250218

Claims (2)

1. A function to obtain the vehicle's current location, A function that displays the warning targets around the aforementioned vehicle on a map, A function to display an arrow on the map indicating the installation direction or monitoring direction of the alarm target, Equipped with , When there are multiple items that require a warning, the function prioritizes the items in descending order of the number of turns the vehicle makes to reach the item, and if the number of turns is the same, the priority is given to the items with the shortest travel distance the vehicle would have to travel to reach the item. A function to display the multiple alarm targets so that the priority can be recognized, A system characterized by comprising the following features.
2. A program for a computer to implement the functions of the system described in claim 1 .

Description

This invention relates to a system and program that notifies information regarding proximity when the current location becomes predeterminedly close to a target object that triggers a warning. In recent years, numerous vehicle speed measuring devices have been installed on roads and in surrounding areas to measure the speed of automobiles. One example of such a device involves emitting microwaves within a predetermined frequency band towards the vehicle and receiving the reflected waves to measure the vehicle's speed. To detect the presence of such vehicle speed measuring devices, microwave detectors configured to detect microwaves emitted from these devices and output an alarm have been known for some time. Furthermore, some vehicle speed measuring devices cannot be detected by conventional microwave detectors. For example, some devices, known as loop-type devices, bury a loop-shaped coil in the ground and detect when a vehicle passes over the coil, simultaneously determining the vehicle speed. Other devices use light other than microwaves to detect vehicle speed. Therefore, there are in-vehicle electronic devices, such as radar detectors (Patent Document 1), that store the installation location information of vehicle speed measuring devices in advance. When the current location, acquired via GPS (Global Positioning System), approaches the stored installation location (reaching a predetermined proximity), a warning is issued regardless of whether microwaves are detected. These various vehicle speed measuring devices are installed in locations with a high incidence of traffic accidents or in areas where speeding is likely to cause accidents. By notifying drivers of these locations in advance, safe driving in compliance with traffic regulations can be encouraged, especially in dangerous areas. Specific notification methods include, for example, outputting audio information from a speaker indicating relative locations such as "Highway H-system 1km ahead to the left" or "General road N-system immediately ahead," or displaying text or images representing these elements on a display unit. Furthermore, the system can detect various types of alerts, including fixed vehicle speed measuring devices, N-systems (automatic license plate recognition systems), accident-prone areas, various enforcement areas, and checkpoint areas. The system allows users to select which alerts to trigger. Incidentally, one of the conditions for a registered alarm target to actually trigger an alarm is that the current location and the location of the alarm target must be in a predetermined proximity relationship. Specifically, this proximity relationship is determined by calculating the straight-line distance between the current location and the location of the alarm target, and ensuring that this straight-line distance is less than or equal to a set reference value r (e.g., 2 km, 1 km, etc.). As a result, alarm targets located within a circle of radius r centered on the current location are extracted as targets for actual alarms. In this situation, there are often multiple warning targets in the vicinity of the current location. In such cases, one warning target that meets predetermined conditions is designated as the target object, and warning information indicating the relative positional relationship, as described above, is provided for that target object. Furthermore, if a display unit is provided, an object representing the vehicle is drawn at a predetermined position on the display screen. If warning targets exist within the space displayed on the screen, the objects of those warning targets are drawn at their corresponding positions on the screen. At this time, the object at the location of the target warning target is drawn with a different appearance from other warning target objects to indicate that it is the target object. By changing the drawing style of the object in this way, the driver can recognize the presence of the designated warning target among the multiple warning targets (objects) drawn on the display screen and understand its relative positional relationship to the vehicle's position. Japanese Patent Publication No. 2008-64588 This is a diagram showing the configuration of a radar detector, which is a preferred embodiment of the present invention.This is a block diagram of a radar detector.This diagram shows examples of the standby screen, radar scope, and GPS warning display.This figure shows an example of the display of the warning screen in the radar wave warning function.This diagram shows the vehicle's position and an example of a warning target in its surroundings.This figure shows the search results for recommended routes to each potential alarm target.This diagram shows the relationship between the installation direction set for the alarm target and the direction of vehicle travel.This figure shows an example of a display screen.This figure shows an example of a display screen.This is a diagram explaining