JPH0746449A - Monitor camera system - Google Patents

Abstract

PURPOSE:To prolong the service life of a universal head in the monitor camera system. CONSTITUTION:A motor-driven universal head 4 of a camera site (automatic panning or the like) is operated prior to output of a camera video signal outputted sequentially from a switcher 2 and the universal head is stopped after the output of the video signal. Thus, the service life of the universal head is prolonged by stopping the universal head (automatic panning or the like) when the monitor is not in use.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surveillance camera system for controlling the operation of an electric pan head mounted with a surveillance camera.

[0002] Related.

2. Description of the Related Art As a conventional example for automating the movement of a TV camera in the image pickup direction to the next monitoring location, Japanese Patent Laid-Open No. 2271/1990 has been proposed.
No. 91 publication (3.10.8).

[0003]

In the above-mentioned prior art, for example, for an electric pan head that is auto-panning, unless the operator of the controller operates the controller to issue a command for canceling auto-panning, the auto-panning operation is performed. However, there is a problem in that the life of the pan head motor tends to decrease.

According to the present invention, the pan head operation at the camera site before the output of the switcher is started, and after the output is switched, the pan head operation is stopped so that the pan head operation when the switcher is not output can be prevented. Therefore, the life of the platform motor can be extended.

[0005]

To achieve the above object, the following logic is used.

1. First, the state of the pan head of the camera site (auto pan etc.) is set in the microcomputer C of the device C, and the microcomputer A
The channel number 1 is stored in.

2. When the sequential operation switch of the device A is turned on, a control signal is sent from the microcomputer A to the microcomputer B of the device B, and the microcomputer B controls the microcomputer C of the device C1 (head platform controller) connected to the channel 1 of the device B. Send a signal. The microcomputer C restores the camera site state of the connected channel 1 by the control signal from the microcomputer B. (For example, auto pan) 3. Device B switches the switching circuit after the state of the camera site connected to channel 1 is restored,
The video signal of the camera 1 is output to the sequential output.

4. The device A stores the channel number (channel 2) obtained by adding 1 to the channel 1 in the storage content of the RAM of the microcomputer A.

5. Next, the device A changes the state of the camera site connected to the channel 2 stored in the microcomputer A before switching the sequential output of the device B to the channel number (channel 2) stored in the RAM of the microcomputer A. A control signal for returning (auto panning) is output to the device B.

6. The microcomputer B of the device B supplies the state restoration command to the camera site device C2 of the channel 2 connected to the device B.

7. After the state of channel 2 is restored, the microcomputer B switches the switching circuit and outputs the video output of channel 2.

8. The microcomputer A rewrites the RAM channel number to 3.

9. Thereafter, the same operation as above is performed.

[0014]

[Function] In advance, the microcomputer of the controller and the camera site state and the switcher (or camera drive unit)
When the channel number 1 of the camera connected to is stored and the sequential operation is performed, the state of the camera site of the channel 1 is restored before the sequential output of the switcher (or the drive unit) is output. After recovery, output the video signal of channel 1 and send the next channel number (channel 2) to the controller microcomputer.
Memorize Before the switcher output outputs the video signal of channel 2, the camera site state of channel 2 is restored, and then channel 2 is output. After switching to the channel, stop the operation of the camera site that has been output so far.

Since the monitoring system is operated by the above logic and the operation of the camera site is stopped when it is not necessary, the service life of the platform can be extended.

[0016]

FIG. 1 shows a first embodiment of the present invention. Hereinafter, description will be given with reference to FIG.

In advance, the EEP of the platform controller 5
The ROM 27 stores, for example, modes such as pan head operation stop and auto pan operation. In addition, the channel number (1) is stored in the EEPROM 9.

When the power is turned on, the microcomputer 15 of the camera platform controller 5 calls the camera platform operation stop from the EEPROM 27, and stops the current supply sent from the camera platform drive circuit 14 so that the camera platform operation is not performed. Further, the microcomputer 8 of the system controller calls the channel number 1 from the EEPROM 9 into the RAM.

The switch 6 of the system controller 1 is turned off.
When it is set to N, an instruction to sequentially operate the switcher 2 is transmitted to the microcomputer 8. The microcomputer 8 supplies a control signal for returning the auto-pan operation to the microcomputer 10 of the switcher 2 via the control signal output terminal 16 and the control signal input terminal 18. The microcomputer 10 determines the connected camera site of channel 1 and supplies a control signal for returning the auto-pan operation to the microcomputer 15 of the camera platform controller 5 via the control signal output terminal 20 and the control signal output terminal 23. The microcomputer 15 receives the control signal from the EEPROM 2
The panning operation stored in 7 is called to operate the pan head drive circuit to auto pan the pan head.

After the automatic pan operation, the microcomputer 15 supplies a control signal indicating that the automatic pan operation is in progress to the microcomputer 10 of the switcher 2 through the control signal output terminal 24 and the control signal input terminal 21. The microcomputer 10 switches the video signal switching circuit to output the video signal of channel 1 from the sequential output terminal 26.

The control signal output terminal 1 indicates that the channel 1 is output to the microcomputer 8 of the system controller 1.
9. Contact via control signal input terminal 17.

The microcomputer 8 of the system controller 1 is R
The channel number (2) obtained by adding 1 to the channel number (1) is stored in the AM.

Next, the microcomputer 8 uses the channel 2 of the switcher.
A control signal for restoring the state of the camera site connected to the switch 10 is supplied to the microcomputer 10 of the switcher 2. The microcomputer 10 restores the state of the camera site 2 in the same manner as the operation restore of the camera site 1. After the operation is restored, the information indicating that the operation is completed is supplied to the microcomputer 10 as in the case of the camera site 1. The microcomputer 10 switches the video signal switching circuit 11 to display the video of the camera site 2 connected to the channel 2 on the sequential output 26. Output. The microcomputer 10 notifies the microcomputer 8 of the system controller 1 that the state of the camera site 2 has been restored.

The microcomputer 8 of the system controller 1 is R
The channel number (3) obtained by adding 1 to the channel number (2) is stored in the AM.

Thereafter, the same operation is performed.

When the channel number becomes the final number of the switcher, the RAM number is returned to (1). FIG. 2 shows a second embodiment of the present invention. Hereinafter, description will be given with reference to FIG.

In advance, the EEP of the platform controller 5
The ROM 21 stores, for example, modes such as pan head operation stop and auto pan operation. In addition, the channel number (1) is stored in the EEPROM 9.

When the power is turned on, the microcomputer 20 of the camera platform controller 5 calls the camera platform operation stop from the EEPROM 21, and the current supply sent from the camera platform drive circuit 20 is stopped and the camera platform operation is not performed. Further, the microcomputer 8 of the system controller 1 reads the channel number 1 from the EEPROM 9.
To RAM.

Set the switch 6 of the system controller 1 to O
When it is set to N, the microcomputer 8 is instructed to sequentially operate the switcher 2. The microcomputer 8 supplies the control signal to the control signal input / output terminal 24 via the control signal input / output terminal 23. In the switcher 2, the control signal is supplied to the sampling microcomputer 11 by the control signal sampling circuit. The microcomputer 11 determines the camera site of the connected channel 1 and supplies a control signal for returning the auto-pan operation to the microcomputer 15 of the camera platform controller 5 via the control signal output terminal 20 and the control signal output terminal 23. The microcomputer 15 calls the auto pan operation stored in the EEPROM 27 by the supplied control signal to operate the camera platform drive circuit to automatically pan the camera platform.

After the automatic pan operation, the microcomputer 15 supplies a control signal indicating that the automatic pan operation is in progress to the microcomputer 10 of the switcher 2 through the control signal output terminal 24 and the control signal input terminal 21. The microcomputer 10 switches the video signal switching circuit to output the video signal of channel 1 from the sequential output terminal 26.

The control signal output terminal 1 indicates that the channel 1 is output to the microcomputer 8 of the system controller 1.
9. Contact via control signal input terminal 17.

The microcomputer 8 of the system controller 1 is R
The channel number (2) obtained by adding 1 to the channel number (1) is stored in the AM.

Next, the microcomputer 8 uses the channel 2 of the switcher.
A control signal for restoring the state of the camera site connected to the switch 10 is supplied to the microcomputer 10 of the switcher 2. The microcomputer 10 restores the state of the camera site 2 in the same manner as the operation restore of the camera site 1. After the operation is restored, the information indicating that the operation is completed is supplied to the microcomputer 10 as in the case of the camera site 1. The microcomputer 10 switches the video signal switching circuit 11 to display the video of the camera site 2 connected to the channel 2 on the sequential output 26. Output. The microcomputer 10 notifies the microcomputer 8 of the system controller 1 that the state of the camera site 2 has been restored.

The microcomputer 8 of the system controller 1 is R
The channel number (3) obtained by adding 1 to the channel number (2) is stored in the AM.

Thereafter, the same operation is performed.

When the channel number becomes the final number of the switcher, the RAM number is set to (1).

Return to.

According to the present invention, there is an effect that the life of the platform can be extended by stopping the platform operation (automatic pan) when not monitored by a monitor or the like.

[Brief description of drawings]

FIG. 1 is a block diagram of a monitoring system according to a first embodiment of this invention.

FIG. 2 is a block diagram of a monitoring system according to a second embodiment of the present invention.

[Explanation of symbols]

In FIG. 1, 1 ... Device A (system controller),
2 ... Device B (switcher), 3 ... Video camera, 4 ... Electric pan, 5 ... Device C (pan controller), 6 ... Switch (sequential operation), 7 ... Resistor, 8 ... Microcomputer A,
9 ... EEPROM, 10 ... Microcomputer B, 11 ... Video signal switching circuit, 12 ... Sensor, 13 ... Video signal processing circuit, 14 ... Platform motor drive circuit, 15 ... Microcomputer C, 1
6 ... Control signal output terminal, 17 ... Control signal input terminal, 18
... control signal input terminal, 19 ... control signal output terminal, 20 ...
Control signal output terminal, 21 ... control signal input terminal, 22 ... video input terminal, 23 ... control signal input terminal, 24 ... control signal output terminal, 25 ... video output, 26 ... sequential output terminal, 27 ... EEPROM, 28 ... control Signal output terminal,
29 ... Control signal input terminal.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasunori Kamisaki 292 Yoshida-cho, Totsuka-ku, Yokohama-shi Hitachi Image Information System Co., Ltd. (72) Shinji Kishino 292 Yoshida-cho, Totsuka-ku, Yokohama-shi Hitachi Image Information Co., Ltd. In the system

Claims (1)

[Claims] 1. A microcomputer (microcomputer A) for generating a control signal (control signal 1) for controlling a camera video signal switching circuit for the device B and for controlling panning / tilting of a camera platform for the device C. Device A (Controller etc.)
And a microcomputer (microcomputer B) that generates a control signal (control signal 2) for controlling video signal switching from the camera and control operation of pan / tilt or the like to the device C (head controller) by the control signal 1. A monitoring camera system that includes a device B (such as a switcher) and a device C (such as a pan head controller) that controls pan / tilt of the pan head by the control signal 2 and that can communicate between the devices by each control signal. In the device A, the microcomputer of the device A (microcomputer A) is made to recognize the output channel currently output by the device B, and before switching the camera video signal output of the device B, the camera of the channel to be output next or thereafter. Device C involved in the pan head operation (auto pan etc.) and the pan head operation of the channel for which output has ended is stopped. Monitoring camera system, characterized in that the set so as to cormorants control.