JPS6238999A - Priority signal apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of Industry-1] The present invention relates to a priority signal device in a road traffic signal system.

[Technical Background and Problems] In road traffic signal systems, it is necessary to detect traveling emergency vehicles and public vehicles and to control traffic signals preferentially.

If the route is fixed, such as a bus, the traffic signal will be determined uniquely when it is detected that the bus is approaching an intersection. However, in cases where the route of a police car is not determined, it is difficult to determine how to control traffic signals unless it is known from which direction the vehicle is approaching the intersection. For this reason, it was necessary to install approach (or passing) detectors on each approach road to the intersection. Specifically, a receiver for signals from a police car or detection of a police car's siren sound can be considered.

However, in order to detect the approach road of a police car to an intersection, many detectors are required, and installation requires securing space and wiring to the signal controller, which inevitably increases costs and disturbs the aesthetics.

In addition, high performance is required, such as providing sharp directivity and narrowly defining the reception level range so as not to be detected by other detectors, which makes it expensive.

[Means for solving the problem] Fig. 2 shows a location system equipped with a locator in a car. In the figure, B is a vehicle mounted on a vehicle.
A indicates the central device. B consists of a locator 1, a setting display 2, a transmission control device 3, a radio 4, an antenna 5, and the like. A includes a central processing unit 6, a polling device 7, a radio device 8, an antenna 9, etc., and A and B are connected by a wireless line.

In such a location system, locator 1
Prepare a device that can detect and output the location of your vehicle on a road map. Further, the setting display 2 is one that can set the dynamics of the vehicle. This allows multiple dynamics to be set. When there is a call from the polling device 7 on the A side, position information and dynamic information of both ILs are returned.

The present invention provides -1 series of location systems that transmit signals from 111 vehicles that respond to polling to traffic signal control devices installed near intersections or in the vicinity of the traffic signal control devices for vehicles equipped with on-board devices; This system is equipped with a receiver that intercepts traffic signals, and by deciphering the vehicle's dynamic information and location information, it is possible to control traffic signals.

The present invention will be explained below with reference to embodiments shown in the drawings.

In FIG. 1, reference numeral 10 indicates a traffic signal control device with an interception receiver that is provided integrally with the traffic signal control device near an intersection. The interception receiver intercepts the signal from the vehicle equipped with the above-mentioned device, and receives whether the vehicle is in the position of and is in an emergency situation.
It decodes the information and sends commands to the traffic signal control device. Further, 11 indicates a traffic signal light device.

Because of the location system configuration, an emergency vehicle C, which is equipped with the locator 1, setting display 2, transmission control device 3, radio 4, antenna 5, etc. as a device B, enters an intersection from the left as shown in the figure. If the emergency vehicle C has already set emergency state information on its setting display 2, this state information and the locator 1
The own vehicle position information of the IJ vehicle is set in the transmission control device 3, and transmitted in response to polling from the central device.

At this time, the signal from the vehicle 2 device B is intercepted by an interception receiver via a wireless line. The traffic signal control device IO with interception receiver predicts and adjusts signal control early based on the location of the vehicle at the time of interception and the distance from the intersection, changes the display of the traffic signal light device IO, and detects emergency vehicles. It is possible to ensure smooth passage of C.

It is also possible to rank the dynamics and change the degree of priority control. For example, if there are emergency vehicles approaching an intersection from two directions, and it is recognized that the emergency vehicle from one direction contains extremely urgent status information, the traffic signal control device has already been activated by the other emergency vehicle. Even at the adjustment stage, it is possible to cancel the adjustment and make adjustments according to the emergency vehicle of the above-mentioned emergency level, allowing more detailed control based on vehicle position and dynamic information. .

The present invention can be applied as part of a location system for emergency vehicles, public vehicles, and a road traffic control system.

[Effects] As explained above, since the present invention can obtain position information on the road as data from the vehicle, only one interception receiver is required as a detector, and its installation location can be adjusted to the traffic signal control device. Traffic signals can be freely selected in the vicinity, and priority control of traffic signals can be performed economically.

There are many approach roads (even if there is a certain intersection, each approach road can be reliably distinguished).

Furthermore, based on the location of the vehicle at the time of interception, the distance to the intersection, and the ranked dynamic information, it is possible to perform detailed priority control for multiple emergency vehicles that are approaching in different directions, depending on their level of urgency.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the invention. FIG. 2 is an explanatory diagram of a location system consisting of a vehicle equipped with an on-board device including a locator and a central device including a polling device. DESCRIPTION OF SYMBOLS 1... Locator, 2... Setting display, 3... Transmission control device, 4, 8... Radio device, 5, 9... Antenna, 6... Central processing unit, 7... -Polling device. LOL 1 Diagram A center back page Zhankusako C view ■Movement 4: Plain floor machine
Amount of grain on B vehicle 5: Antenna 6: Carapace processing ■ 7: Oscillating device 8: Kaoruwa roasting machine q: Antenna

Claims (3)

[Claims] (1) A vehicle that is equipped with a radio, a transmission control device, a locator that detects the location on a road map, and a setting display, and that returns the vehicle's location and dynamic information in response to a call from the polling device of the central device. In the location system of
A priority signal device characterized in that an interception receiver that receives and decodes position and movement information from the vehicle is installed near an intersection, and the decoded signal is used to adjust the signal display of a traffic signal control device. (2) The distance between the intersection and the vehicle is calculated from the received and deciphered position information of the vehicle, the time when the vehicle will enter the intersection is predicted, and the signal display of the traffic signal control device is adjusted. A priority signaling device according to claim 1. (3) The priority signal device according to claim 1, wherein the signal display of the traffic signal control device is adjusted according to the degree of urgency of the received and decoded dynamic information of the vehicle.