JPH01173295A - monitoring device - 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 [Technical Field of the Invention] The present invention relates to a monitoring device that controls and monitors one or more TV cameras at a plurality of locations within the premises of a building, factory, or the like.

[Prior art and its drawbacks]

Conventionally, when controlling a TV camera with two or more operating devices, operating devices 11, 12, a switching unit 13,
It is composed of a control section I4, a TV right camera 5, a monitor TV 16 and 17, and a switching section 13 for selecting the control signal from the operating device 11 and I2 and outputting it to the control section 14.
was necessary.

However, with this method, for example, when an operation is being performed with the controller 111, it is not clear what kind of control is being performed on the TV camera with the controller B12, especially when monitoring multiple TV cameras by switching between them. In the past, it was difficult to confirm which TV camera's image was being displayed on the monitor TV.

[Purpose of the invention]

The present invention has been made in view of the above points, and is a monitoring device that controls one or more TV cameras or camera heads using a plurality of operating devices, regardless of whether or not the plurality of operating devices are in the operating state. The first object is to provide a monitoring device that can monitor the operating status of a TV camera.

[Key points of the invention]

a controller for controlling one or more television cameras and pan heads;
A television camera monitoring device comprising a plurality of operating devices connected to a single control line from the controller, and a plurality of monitor devices provided for each of the operating devices connected to a signal line from the television camera, The transmission data output to the transmission section and the reception data input from the reception section are constantly compared in the comparison section, and if the comparison results do not match, the transmission from the transmission section is stopped, and the reception data inputted from the reception section is stopped. The data received from the section is displayed on the monitor device.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. The configuration of an embodiment of the present invention is shown in FIG. In FIG. 1, an operating device 121, an operating device B22, and a controller 23 are connected by a control signal line 24 connected in a path using a coaxial cable or the like. The controller 23 outputs control signals for the pan head, lens, etc. to the TV camera 25, and the TV camera 25 outputs video signals to the monitor TVs 26 and 27.

Next, the configuration of the operating devices 21 and 22 will be explained with reference to FIG. The operating devices 21 and 22 include an input section 31 for setting control contents, a conversion section 32 for analyzing the configuration of control data, and a transmitting section 33 for transmitting control data to the path-shaped control signal line 24.
, a receiving section 34, a comparing section 35 for comparing transmitted and received data,
It is comprised of a transmission control section 36 that controls data transmission and a display section 37 that displays the control status.

Next, the operation of an embodiment of the present invention configured as described above will be explained. When the power is turned on, the controllers 21 and 22
The state of the control signal line 24 is monitored by the comparison unit 35 via the reception unit 34, and only when there is no received data, the state of the control signal line 24 shown in FIG.
The transmission of control signals has started as shown in (g). On the other hand, if there is data on the control signal line 24, the transmission control unit 36
Otherwise, the transmitting section 33 is set to a state in which no output is performed, and a receiving state is set as shown in FIG. 3(B).

Therefore, while the control signal is being transmitted from the transmitting section 33, the transmitted data and the received data are constantly compared by the comparing section 35,
Checking that sent and received data match. If the comparison unit 35 detects a mismatch between the transmitted and received data, the transmission control unit 36 stops the transmission as shown in the third ira.

On the other hand, the operating device in the receiving state determines whether or not the receiving state is present in the constant comparison unit 35, and enters the transmitting mode if the state in which there is no received data for a certain period of time continues as shown in FIG. 3 (b). .

By the way, it is created by the converter 32 based on the contents set by the control signal line 31 from the transmitter 36.

Further, the converting section 32 analyzes the received data received by the receiving section 34, and displays the result of the analysis on the display section 37. Thereby, the operating state of the controller 23 can be displayed both when the operating devices 21 and 22 are in the transmitting state and in the receiving state.

Note that the present invention is not limited to the above embodiments,
It is also possible to connect three or more controllers.

It is also possible to individually control two or more controllers by assigning addresses to them.

〔Effect of the invention〕

As detailed above, according to the present invention, since a plurality of operating devices and controllers are connected by a path-like control signal transmission path, the control signal sent to the controller is received by all the operating devices and displayed. In order to perform this, the control state of the TV camera can be monitored not only by the operating device that is in the operating state but also by other operating devices.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of the operating device of the present invention, FIG. 3 is a diagram showing the mutual operation sequence of the operating devices, and FIG. 4 1 is a diagram showing the configuration of a conventional monitoring device. 21.22...operator, 23...controller, 25...
・TV camera, 26.27...Monitor TV, 33...
- Transmission section, 34... Receiving section, 35... Comparison section, 36
... Transmission control section, 37... Display section.

Claims (1)

[Claims] a controller for controlling one or more television cameras and pan heads;
A television camera monitoring device comprising a plurality of operating devices connected to a single control line from the controller, and a plurality of monitor devices provided for each of the operating devices connected to a signal line from the television camera, The operating device includes a transmitter that transmits control data to the control line, a receiver that receives control data from the control line and control data from the transmitter, and a transmission control that controls transmission from the transmitter. a comparison unit that compares the transmission data output from the transmission unit and the reception data input from the reception unit, and a display control unit that displays the data received from the reception unit on the monitor device. The transmission control section constantly compares the control data transmitted from the transmission section and the control data received by the reception section in a comparison section, and if the comparison results do not match, the control data from the transmission section is A monitoring device characterized by stopping transmission.