JPS6246919B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle that ignores a traffic signal and a data recording device that records vehicles that ignore a traffic signal on a road surface such as an intersection where a traffic signal is provided.

A device has been developed and is already in use to record so-called speeding vehicles that drive at speeds above the legal speed limit. Records produced by such devices must be sufficiently durable as evidence at a later date.

Some devices have already been proposed for photographing vehicles ignoring traffic lights at intersections, but they have not yet been put to practical use. This seems to be due to the fact that there is a slight problem with its value as evidence mentioned above.

The purpose of the present invention is to apply the following information to a place where a traffic signal is installed, such as an intersection, immediately after a vehicle ignores the signal, after a short period of time to travel a certain distance, and at the time when the signal was ignored. An object of the present invention is to provide a recording device for recording vehicles that ignore traffic lights on the same film surface.

In order to achieve the above object, the present invention provides a signal disregarding vehicle and a data recording device, which records vehicles ignoring a traffic signal on a road surface such as an intersection where a traffic signal is installed. a vehicle detection device installed in the traffic signal for detecting the entry of a vehicle; a signal information circuit for extracting signal information displayed by the traffic signal from the traffic signal; A first photographing command is issued when it is determined that the signal has been ignored, a second photographing command is issued after a short period of time required for the vehicle to travel a certain distance, and a signal ignoring signal that generates a data display signal in synchronization with the photographing command. a determination circuit; a data display section having a clock circuit and displaying time data based on the data display signal; It consists of a camera placed in front of the entry position that photographs the vehicle together with display data on the same film surface after a short period of time required for the vehicle to travel.

The present invention will be described in more detail below with reference to the drawings and the like.

FIG. 1 is a plan view showing the relationship between the intersection where the device according to the present invention is used and the angle of view of the camera.
FIG. 2 is a block diagram showing an embodiment of the apparatus according to the invention. In Figure 1, W ₁ , W ₂ , W ₃ , W ₄
indicates a crosswalk. In this example, the crosswalk W ₁
Vehicles that cross the road are subject to photography.
In the figure, L ₁ , L ₂ , L ₃ , and L ₄ are each a pair of loop coils buried under the road surface, and a camera installed at point O in the figure, which will be described later, is a loop coil L ₁ ,
It is directed at vehicles that have entered through L ₂ (center line lane). You can also change the direction of the camera to target vehicles from the shoulder lane.
Each pair of loop coils L ₁ , L ₂ and L ₃ , L ₄ constitutes a detection section of a vehicle detection device 3 that detects intrusion of a vehicle, and the vehicle detection device 3 detects a vehicle at a speed higher than a predetermined speed. A detection signal is output when the vehicle enters an intersection. A signal information circuit 1 is provided in a traffic light (not shown) that is not provided near the O point, and signal information indicating what color the signal is displayed is extracted by the signal information circuit 1.

Signals from the vehicle detection device 3 and the signal information circuit 1 are input to the signal disregard determination circuit 2 .

This determination circuit 2 determines whether the vehicle in question is a vehicle that ignored a traffic signal based on such information, and also provides a photographing instruction to a camera 5 and data to a data display section 4, which will be described in detail later. .

The data display section 4 has a clock circuit and always has current time data. The display function uses the consecutive number (number) for each number of shots, and the last two digits of the Western calendar as the date (date) of the shooting.
The month and day can each be displayed as two-digit numbers.

Furthermore, the number of seconds that have elapsed since the red light was turned on at the time when the first photographing and the second photographing were performed is displayed as the red light elapsed time, respectively.

(Red light elapsed time) column in the data section of Figure 3.
03.2 and 03.9 indicate that the first photograph was taken 3.2 seconds after the traffic light turned red, and the second photograph was taken 3.9 seconds after the traffic light turned red. The display is of 7 segments.
This is performed using a group of LED display elements and a display element that shows a signal mark corresponding to the display of a traffic light.

The signal mark is used to confirm that the signal state was red when the first and second photography was performed.

The display of this data display section is controlled by a signal from the signal neglect determination circuit 2 shown in FIG.

The camera 5 used in this embodiment device is capable of photographing, on the same film screen, the vehicle immediately after entering the vehicle, the vehicle after the time required to travel a certain distance, and the display contents of the data display section described above.

Fig. 4 shows the optical system of this camera, and Fig. 5 shows its external appearance. In FIG. 4, numeral 7 indicates one frame of the film shown in FIG.

In the space defined by the prism housing 60 and the front plate 59 of the camera body 61 shown in FIG.
The prisms 51, 52, 53 shown in the figure are housed closely together. The prism 52 is a prism for the main screen shown on the film 7 shown in FIG. 3, and a telephoto lens 55 is associated with this prism. The prism 51 is a prism for a sub-screen, and is associated with a wide-angle lens 54. Note that each lens 53, 54 is provided with a lens shutter driven by the above-mentioned photographing command signal. The prism 53 is a data prism, and has a data shutter 56 and a lens 57 on its entrance surface.

The light emitted from the display element group of the data display section 4 described above is guided to the lens 57 via the mirror 58,
The photograph is taken when the shutter 56 is opened.

The camera body 61 shown in FIG. 5 is a motor drive camera, and a film bag 62 for storing a straight 35 mm film is fixed to the rear. Note that a strobe light emitting section 6 is provided in connection with this camera.

This light emitting section is provided at a position a certain distance away from each optical axis of the camera 5 so as to be able to illuminate at least the vicinity of points P ₁ and P ₂ shown in FIG. This strobe light emitting unit is the first flash unit of the camera 5.
And the light is emitted in synchronization with the photographing according to the second photographing command.

The operation of the apparatus having the above configuration will be explained with reference to each figure.

The camera 5 is in a state in which the film is wound up after the previous shooting is completed and is ready for shooting. Suppose that a vehicle enters the intersection shown in Figure 1 by stepping on the loop coils L ₁ and L ₂ after the traffic signal display turns red, and when this speed exceeds a predetermined speed, the signal disregard judgment circuit 2, when the first photographing command is issued, the shutter of the telephoto lens 55 of the camera 5 is operated, and the vehicle in the vicinity of point _P1 (see FIG. 1) is illuminated by synchronized strobe light emission and photographed. This is the photographing of the main screen shown in the lower part of FIG. 3, and the front end of the vehicle is photographed in a large size so that the driver inside the vehicle can be identified.

Next, if the vehicle goes straight, P ₂ in Figure 1
At the point when the point is likely to be reached (this point is determined by estimating from the approach speed), a second photographing command is issued, and the shutter of the wide-angle lens 54 is operated under synchronized strobe light emission, as shown in FIG. Shooting of the sub screen is performed.

The data shutter 56 is operated at the same time as the main screen is photographed, and the data displayed on the data display section 4 is photographed by the time the sub-screen is photographed. Since the sub-screen is photographed using a wide-angle lens, not only the vehicle but also the surroundings are recorded. Even if the vehicle does not go straight but tries to turn left or right, the entire vehicle is photographed.

As described in detail above, according to the device according to the present invention, it is possible to photograph a vehicle immediately after the vehicle enters the vehicle and after a certain period of time has elapsed, together with data related to that time, on the same screen.

Therefore, the device according to the invention makes it possible to obtain records that can be used as evidence at a later date.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing the relationship between an intersection where the device according to the present invention is used and the angle of view of the camera, Fig. 2 is a block diagram showing an embodiment of the device according to the present invention, and Fig. 3 is a photographic film. and a diagram showing a shooting example,
FIG. 4 is a perspective view showing the optical system of the camera developed, and FIG. 5 is a perspective view showing an embodiment of the camera. 1...Signal information circuit, 2...Signal neglect determination circuit, 3
...Vehicle detection device, 4...Data display unit, 5...Camera, 6...Light emitting unit, 7...Film, 51, 52, 5
3... Prism, 54... Wide angle lens (short focal length lens), 55... Telephoto lens (long focal length lens), 56... Data shutter, 57... Data lens, 58... Mirror, 59... Front plate, 60... Prism housing , 61...Camera body, 62...Film back.

Claims (1)

[Scope of Claims] 1. A signal disregarding vehicle recording device that records vehicles that ignore traffic lights on road surfaces such as intersections where traffic signals are installed, and a vehicle detection device that detects the entry of vehicles installed on approach roads. A device 3, a signal information circuit 1 that extracts signal information displayed by the traffic signal from the traffic signal, and an output of the vehicle detection device 3 and an output of the signal information circuit 1 to determine that the vehicle has ignored the signal. The first shooting command is issued when
It has a signal ignore determination circuit 2 that generates a second photographing command and a data display signal in synchronization with the photographing command after a short time period required for the vehicle to travel a certain distance, and a clock circuit, A data display section 4 that displays time data; a display data that shows the vehicle immediately after entering according to the first photographing command, and the vehicle after the short time required to travel the predetermined distance after entering according to the second photographing command; A red light vehicle and a data recording device are constructed of a camera 5 disposed in front of the approach position and a camera 5 which takes pictures on the same film surface. 2. The vehicle running a red light and the data recording device according to claim 1, wherein the vehicle detection device 3 is a device that detects when a vehicle enters an intersection at a speed above a certain value. 3. The red light vehicle and data recording device according to claim 2, wherein the vehicle detection device 3 is a loop coil buried under the road surface. 4. Claims in which the data display unit 4 displays data regarding the elapsed time from the time when the traffic signal displays a stop signal to the time when the vehicle enters the intersection and the first and second photography is performed. 1st
Vehicles ignoring red lights and data recording devices as described in Section 1. 5 The camera 5 has a long focal length lens 55, a short focal length lens 54, a lens 57 for photographing the data display section, an optical system that divides each optical path, and each independent shutter, and the first photographing command According to the second photographing command, the lens 55 with a long focal length is used to take a picture, and the lens 54 with a short focal length is taken by the second photographing command.
A traffic light disregarding vehicle and a data recording device according to claim 1, wherein the vehicle is configured to take a picture using a traffic light.