JPH03279195A - Work field monitoring system - Google Patents

Abstract

PURPOSE:To monitor the condition in a working field with simple constitution and installation by providing a monitoring camera for the field along the mast or the arm of a crane and a monitor television receiving the image signal and projecting on the screen. CONSTITUTION:A crane 1 is standingly provided on a building under construction and an arm 2 is fitted to the mast 2 drivingly turnable and vertically fluctuatable. A monitoring camera 4 for the working field is provided on the extreme end of the arm 3, and a monitor television 5 receiving the image signal from the field monitoring camera 4 and projecting on the screen is provided in a field office or the operation cabin in the crane 1. By this constitution, a pillar exclusively used for fitting the field monitoring camera 4 is unnecessary to simplify the constitution, and installation of the field monitoring camera 4 can be performed with a little labor.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a workplace monitoring system that monitors conditions within a workplace in an office, security room, or the like.

<Conventional technology> In workplaces with large working areas, such as work sites and material storage areas, it is necessary to monitor the conditions within the workplace and work conditions in an office or security room. As shown in the schematic perspective view, a hole of about 1.5 to 2.0 m is dug at a predetermined location in the workshop where building A is being constructed, and a column member 01 as a base is inserted into the hole,
A predetermined number of pillar members 01a... are added to the pillar member O1, and a pillar M of a certain height is erected at a certain place, and an in-house surveillance camera 02 is installed at the tip of the pillar M. A monitor television 03 is provided, and the video image taken by the indoor monitoring camera 02 is transmitted from a transmitting antenna 04 to a receiving antenna 05, and is displayed on the monitor television 03 for monitoring.

<Problem to be solved by the invention> However, in addition to requiring a pillar M for installing the on-site surveillance camera 02, it also requires work to erect the pillar M, and also, depending on the progress of work at the work site, The erected pillar M becomes a hindrance to the transportation of materials by a crane, etc., and the installation position 1 may have to be changed, making the structure complex and requiring time and effort to install. There were some drawbacks.

The present invention has been made in view of the above circumstances, and an object of the present invention is to enable monitoring of conditions within a workplace with a simple configuration and easy installation.

Means for Solving the Problems> In order to achieve the above-mentioned object, the present invention, as the invention according to claim (1), provides a method for attaching the The system includes an on-site surveillance camera that monitors the inside of the workplace, and a monitor television that receives video signals from the on-site surveillance camera and displays images.

In addition, as the invention according to claim (2), the above-mentioned (1)
) A remote control device for driving and rotating the on-site monitoring camera by remote control, in which the on-site monitoring camera of the invention according to item (2) is mounted on the mast or arm of a crane so as to be rotatable around axes facing both vertically and horizontally. A transmitting antenna that is connected to an on-site surveillance camera and transmits a video signal from the on-site surveillance camera, and a monitor television that receives the video signal from the transmitting antenna and displays the video.

<Operation> According to the configuration of the workplace monitoring system of the invention according to claim (1), at a work site with a large working area, a crane is installed for use in transporting materials, such as bringing in and taking out materials. Focusing on the above, the crane can be used to attach an on-site surveillance camera to the crane's mast or arm, and the images taken by the on-site surveillance camera can be displayed on a monitor TV.

Further, according to the configuration of the workplace monitoring system of the invention according to claim (2), using a remote control device,
For example, by remote control from within the office, you can control the posture of the on-site surveillance camera in relation to the mast or arm of the crane, and point the on-site surveillance camera in the desired direction while watching the monitor TV, concentrating on the area you want to monitor. can be monitored.

<Example> Next, an example of the present invention will be described in detail based on the drawings.

Figure 1 of the 12-ship team is a schematic diagram of the overall construction of the workplace monitoring system.
A crane 1 is erected on a building A to be constructed, and an arm 3 is attached to a mast 2 of the crane 1 so that it can be driven and rotated and can swing up and down.

An on-site surveillance camera 4 is installed at the tip of the arm 3;
A monitor television 5 is provided in the field office J, and a monitor television is also provided in the operating cabin 6 of the crane 1, although not shown.

As shown in the system configuration diagram of FIG. 2, the on-site surveillance camera 4 includes a camera body 7 equipped with a zoom lens 8 driven by a zoom motor (not shown).

The camera body 7 is attached to a swivel base 9 so as to be swingable around an axis facing in the horizontal direction, and a first electric motor 10 is provided on the swivel base 9.
and a support shaft 7a integral with the camera body 7 are interlocked and connected via a bevel gear type transmission mechanism 1), and a first electric motor 10
The camera body 7 is driven and moved by the operation of the camera body 7.

A swivel base 9 is attached to a support base 12 so as to be rotatable around an axis facing in the vertical direction, and a second electric motor 1 is attached to the swivel base 9.
3 is provided, and the second electric motor 13 and a support shaft 12a integrated with the support base 12 are connected to a gear type transmission mechanism 14.
The second electric motor 13 is connected to the second electric motor 13 to drive and rotate the camera body 7.

A control device 15 is provided in the swivel table 9, and the control device 1
5 is connected to a receiving antenna 16, and a zoom motor (not shown), first and second electric motors 10,
13 each drive circuit is connected to a control device 15, and based on a command signal from a remote control device 17 provided in a field office J, an operation cabin 6, etc., zooming, swinging, and turning can be controlled by remote control. It is configured so that it can also be done.

Further, a transmitting antenna 18 is provided on the camera body 7, while a TV receiving antenna]9 is connected to the monitor TV 5 side, and the transmitting antenna 18 is connected to the monitor TV 5 side.
The video signal transmitted through the television receiver 8 is received through the television receiving antenna 19, and the video is displayed on the monitor television 5.

Figure 3 is a front view of the second embodiment, in which a trolley-type crane 21 installed in a work place such as a material storage area is movably mounted on a jib 22, which is an example of an arm. An on-site surveillance camera 4 is attached to the trolley 23.

Further, a monitor television 25 and a television reception antenna 26 are provided at the tip end side of the mast 24.

Although not shown, monitor televisions are also installed at predetermined locations such as offices.

Figure 4 is a system configuration diagram of the third embodiment, in which a handle 31 is attached to the camera body 7 so that the on-site monitoring camera 4 can be easily carried.

Further, a receiving antenna 32 that receives command signals from a remote control device is connected via an extension cable 33, and is configured so that the receiving antenna 32 can be installed at a position with good reception as appropriate. The other configurations are the same as those in the first embodiment, so the same numbers are given and the explanation is omitted.

Fig. 5 is a perspective view of the main parts of the fourth embodiment, in which a solar battery 41, 41 and a storage battery 42 are connected to the on-site monitoring camera 4, and the batteries 41, 41° 42, a zoom motor, and first and second electric motors 10.13 (see Fig. 2) are connected to reduce the power consumption for driving, swinging, and zooming the on-site surveillance camera 4. It is constructed so that it can be obtained at low cost. Other configurations are the first
This is the same as in the embodiment, so the same number is given and the explanation is omitted.

In the above embodiment, the on-site surveillance camera 4 is provided on the arm 3 or the jib 22, which is an example of the arm, but the present invention may also be provided on the mast 2.24.

<Effects of the Invention> According to the workplace monitoring system of the invention as claimed in claim (1), it is possible to simplify the configuration by eliminating the need for a dedicated column for installing a workplace surveillance camera, and it is also possible to erect the column. There is no need to do this, and the installation of on-site surveillance cameras can be done with less effort.

Moreover, since the on-site monitoring camera is attached to the moving crane itself, even if the fixed position of the crane is moved as the work progresses, the on-site monitoring camera will not get in the way of the crane at all, and the installation position of the on-site monitoring camera can be changed. This is convenient because there is no need to change it.

Further, according to the workplace monitoring system of the invention according to claim (2), the direction of the workplace surveillance camera can be adjusted according to the progress of the work, for example, when it is desired to monitor multiple locations simultaneously. By simply making appropriate changes, it is possible to concentrate and easily monitor the area that you want to monitor, which not only simplifies the monitoring operation itself, but also enables safe and efficient monitoring over a wide area from a high place.

[Brief explanation of drawings]

1 to 5 show an embodiment of the workplace monitoring system according to the present invention, FIG. 1 is an overall system configuration diagram of the first embodiment, and FIG. 2 is a system configuration diagram of main parts. , 3rd
The figure is a front view of the second embodiment, FIG. 4 is a system configuration diagram of the third embodiment, and FIG. 5 is a perspective view of main parts of the fourth embodiment. FIG. 6 is a schematic perspective view of a conventional example. 1... Crane 2... Mast 3... Arm 4... Site surveillance camera 5... Monitor TV 17... Remote control device 18... Transmission antenna 21... Trolley type crane 24...・・Must 25・・Monitor TV

Claims (2)

[Claims] (1) Equipped with an on-site surveillance camera attached to the mast or arm of a crane erected within the workplace to monitor the inside of the workplace, and a monitor television that receives video signals from the on-site surveillance camera and displays images. A workplace monitoring system characterized by: (2) The on-site monitoring camera according to claim (1) is attached to the mast or arm of a crane so as to be rotatable around axes facing vertically and horizontally, and the on-site monitoring camera is controlled by remote control. a remote control device for driving and rotation operation; a transmitting antenna connected to the on-site monitoring camera and transmitting the video signal of the on-site monitoring camera; and a monitor television that receives the video signal from the transmitting antenna and displays the image. A workplace monitoring system equipped with