JP2000350190A - Mobile monitor system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a container space narrow without increasing an entire monitor system. SOLUTION: An interior of a car body 2 is provided with a mirror 12 that rotates as the same body as a camera 10 rotating around a rotary axial line L1 nearly orthogonal to a road face and that rotates around a line L2 nearly orthogonal to the rotary axial line L1 and also with a zoom mechanism that rotates as the same body as the camera 10. The monitor system as above is made small in size and light in weight depending on a relation between a direction of an optical axis of the zoom mechanism and a vertical direction and a relation between a direction of the optical axis and a direction of the rotary axial center and can quickly photograph a monitor object.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile monitoring device, and more particularly, to a mobile monitoring device that is desired to be small and lightweight.

[0002]

2. Description of the Related Art In order to monitor a moving monitoring target (for example, a demonstration march), a monitoring side also moves. The movement monitoring device
As shown in FIG. 2, an automobile is used, and a camera 101 protruding upward from the ceiling of the vehicle body is biaxially rotated around a vertical axis line L1 orthogonal to a road surface and a horizontal axis line L2. ing. The first drive system 102 for driving the camera 101 having a large mass in the vertical direction needs to be made tough according to the mass of the camera.
The second drive system 103 for rotating the first and first drive systems 102 in the same body needs to be made more tough, the whole becomes large, and a large space is required for turning the camera. In a high-zoom camera required for surveillance, the optical system formed by the lens becomes longer in the optical axis direction, and the space for accommodating the entire system for rotating such a long camera becomes larger.

[0003] It is desired that the entire monitoring system is not large in size, the accommodation space is small, and that the system can be monitored quickly while moving.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a mobile monitoring device in which the overall monitoring system is not large and the accommodation space is small. It is another object of the present invention to provide a mobile monitoring device capable of monitoring a moving object quickly.

[0005]

Means for solving the problem are described as follows. The technical matters corresponding to the claims in the expression are appended with numbers, symbols, etc. in parentheses (). The number, the symbol, etc. are at least one of the technical matters corresponding to the claims and the plurality of embodiments.
Although the agreement / correspondence with the technical matters of the two forms is clarified, it is not intended to show that the technical matters corresponding to the claims are limited to the technical matters of the embodiment.

A mobile surveillance device according to the present invention comprises: a camera (10) rotating around a rotation axis (L1) substantially perpendicular to a road surface in an internal region of a vehicle body (2); The mirror (1) that rotates about the same axis and rotates about a line (L2) substantially orthogonal to the rotation axis (L1)
2) and a zoom mechanism that rotates together with the camera (10). Such a monitoring system is reduced in size and weight due to the relationship between the direction of the optical axis of the zoom mechanism and the vertical direction, and the relationship between the direction of the optical axis and the direction of the rotation axis of the mirror. The rotation axis lines L1 and L2 are usually oriented in the vertical and horizontal directions, respectively.

Further, an inverter for inverting an image taken by a camera upside down, a recorder for recording the image inverted by the inverter, and a monitor arranged in the vehicle body for displaying the image in real time are added. Preferably.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In accordance with the drawings, a mobile monitoring device according to an embodiment of the present invention is provided with a monitoring system together with an automobile. The monitoring system 1 is shown in FIG.
As shown in FIG. 2, the upper part 4 is exposed above the ceiling 3 of the vehicle 2 and the lower part 5 is accommodated in an internal space below the ceiling 3.

The lower part 5 is formed by a first rotation drive mechanism 6 and a monitoring camera 10 integrally connected to the output rotation shaft of the first rotation drive mechanism 6. The surveillance camera 10 is formed of a main housing 8 including an imaging system and a sub-housing 9 including a high zoom optical system, and is formed to be considerably long in a vertical direction which is an optical axis direction. Rotation (swing) axis L1 of surveillance camera 10
Is oriented substantially vertically perpendicular to the road surface, especially the horizontal plane.

The upper part 4 is formed by a second rotary drive mechanism 11 and a reflecting mirror 12 integrally connected to an output shaft thereof. The rotation axis L2 of the reflecting mirror 12 is parallel to the road surface, especially to the horizontal plane. A bearing (not shown) supporting the second rotation drive mechanism 11 and its output shaft is fixedly supported by the main housing 8 of the monitoring camera 10. The upper portion 4 is rotated (oscillated) by the first rotation drive mechanism 6 together with the lower portion 5.

If the output of the second rotary drive mechanism 11 is zero, the upper part 4 is stationary with respect to the lower part 5. On the stationary system, it swings in the upper limit direction about the rotation axis L2. The reflecting surface of the reflecting mirror 12 changes with respect to a horizontal plane but is substantially perpendicular and constant to a vertical plane.

The image data output from the monitoring system 1 is inverted upside down by an image upside down inverter 13. The image data subjected to the upside down process is recorded on the video recorder 14 and is immediately reproduced and displayed on the monitor 15.

When the first rotary drive mechanism 6 is driven, the second rotary drive mechanism 11 of the upper portion 4 swings together with the main housing 8 of the lower portion 5. The second rotation drive mechanism 11 includes the lower portion 5
Swings itself while swinging in the same manner as the main housing 8. The reflecting mirror 12 itself swings while rotating in the same manner as the lower part 5. The surveillance system 1 shoots the object to be monitored in almost all directions while operating the sub-housing 9, and records the image on the video recorder 14 by inverting the image vertically.

Since the reflecting mirror 12 does not rotate around the entire circumference but rotates within a certain angle range, the area for swinging thereof can be set smaller than that of the one rotating around the entire circumference. The support mechanism for supporting the lightweight two-axis rotating mirror on the camera is simplified. A rotation support mechanism for a camera that rotates only around one axis can be made lightweight and simple. Since a camera having a zoom mechanism has a housing that is long in the optical axis direction and rotates around the optical axis, a space volume required for the rotation is small.

[0015]

The mobile monitoring device according to the present invention is small and lightweight, and can monitor a monitoring target quickly.

[Brief description of the drawings]

FIG. 1 is an axial projection view showing an embodiment of a mobile monitoring device according to the present invention.

FIG. 2 is an axial projection view showing a known device.

[Explanation of symbols]

 2 ... body 10 ... camera 12 ... mirror L1 ... rotation axis center line L2 ... line

Claims (4)

[Claims] 1. A camera that rotates about a rotation axis substantially perpendicular to a road surface in an inner region of a vehicle body, and around a line that rotates together with the camera and that is substantially perpendicular to the rotation axis. A mobile surveillance device comprising: a mirror that rotates; 2. The mobile monitoring device according to claim 1, further comprising a zoom mechanism that rotates together with the camera and whose optical axis is directed substantially vertically. 3. The mobile monitoring device according to claim 1, further comprising: an inverter for inverting the image captured by the camera upside down, and a recorder for recording the image inverted by the inverter. 4. The mobile monitoring device according to claim 3, further comprising a monitor disposed in the vehicle body to display the image in real time.