JPH0248867A - Remote controller of television camera turning stand - Google Patents

Abstract

PURPOSE:To prevent malfunction due to noise, to facilitate the wiring work and to attain remote control for a long distance by connecting a control box and a camera turning stand by a MODEM comprising a modulation circuit and a demodulation circuit. CONSTITUTION:When an automatic scan switch on an operation panel 8 is depressed, a sender side CPU 28 applies automatic operation in the mode selected by the mode switch. When any of four station switches during operation is depressed, the CPU 28 drives a television camera so as to display a relevant home position via a receiver side CPU 33. If an external sensor 31 detects a fault during operation, the CPU 33 detects it and the camera is driven toward the home position giving an emergency signal. Then the relevant position is displayed on the monitor and the state is kept till the output of the emergency signal is stopped. Thus, the control box 26 and the camera turning stand 1 are subject to long range remote control without malfunction due to noise by using a MODEM comprising a modulation circuit 32 and a demodulation circuit 32b.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a remote control device for controlling the rotation of a surveillance television camera in the horizontal and vertical directions.

[Prior Art] Traditionally, surveillance television cameras have been mounted near the ceiling of stores, etc., and the television cameras are rotated and controlled remotely by a control device installed in a separate building or in a separate building to monitor images at a desired location. By displaying the image on the screen, it is possible to check whether there are any abnormalities.

[Problems to be Solved by the Invention] In the above-mentioned remote control device, the television camera, its rotary base, and the control device are usually connected by many signal lines, and many types of operation signals are sent to drive the television camera. are transmitted using a relay control method using separate signal lines. However, in such a remote control device, it is necessary to route a large number of signal lines between the television camera and the remote control device, so there is a problem in that the wiring work is complicated. In addition, each signal line is configured to transmit the potential difference between it and the ground line, so it is susceptible to noise.
There was a risk that an intruder could intentionally cause a malfunction, and reliability was at a disadvantage. Furthermore, there is a problem in that the signal line can only be extended by about 2 Kffl at most because it is susceptible to noise.

The second object of the invention is to provide a television camera rotating stand that prevents malfunctions due to noise and ensures high reliability, has a small number of signal lines, makes wiring work easy, and enables long-distance remote control. To provide remote control equipment.

The second and third objects of the invention are to provide a remote control device for a television camera rotating stand that can prevent malfunctions due to noise and ensure high reliability.

[Means for Solving the Problems] The first invention is to transmit a predetermined digital signal by QN to a remote control device that remotely controls a camera rotating table that supports a television camera rotatably in horizontal and vertical directions using a control box. The gist of this device is a remote control device for a television camera turntable that connects a control box and a camera turntable using a modem consisting of a modulation circuit that outputs a digital signal on a carrier wave, and a demodulation circuit that demodulates a digital signal from the carrier wave. be.

A second invention is a remote control device for remotely controlling a camera rotating table that supports a television camera so as to be rotatable in horizontal and vertical directions, using a control box. a first signal converting means for converting an electrical signal into an optical signal by a light emitting element and converting the optical signal back into an electric signal by a light receiving element; a second signal conversion means for converting an electrical signal from the light receiving element of the means into an optical signal by the light emitting element, converting the optical signal again into an electrical signal by the light receiving element and outputting it to the camera rotating table; A television camera rotating stand provided between the box and the television camera and comprising a signal line for transmitting an electric signal from the light receiving element of the first signal converting means to the light emitting element of the second signal converting means. Its gist is a remote control device.

A third invention is a remote control device for remotely controlling a camera rotating table that supports a television camera rotatably in horizontal and vertical directions using a control box, which is provided on the control box side and receives electrical signals from the control box. a light-emitting element that converts into an optical signal; and a light-receiving element that is provided on the television camera side and receives the optical signal from the light-emitting element, converts it back into an electrical signal, and outputs the electrical signal to the camera rotating table. , a remote control device for a television camera turntable, comprising an optical fiber cable provided between the control box and the television camera, and for transmitting an optical signal from the light emitting element to the light receiving element. This is the summary.

[Function] In the first invention, the control box and the camera turntable are connected by a modem through a small number of signal lines, and the signal lines are not susceptible to noise.

In the second and third inventions, by converting the electrical signal from the control box into an optical signal and then converting it back into an electrical signal, it is difficult to be affected by noise before and after the signal conversion.

[First Embodiment] Hereinafter, a first embodiment embodying the present invention will be described with reference to FIGS. 1 to 6. A camera rotation stand 1 shown in FIG. 3, horizontal rotating body 4
is supported rotatably in the horizontal direction, and a vertical rotor 6 is rotatably supported in the vertical direction by the horizontal rotor 4 via a rotation shaft 5.
is suspended and supported. A first step motor described later for rotationally driving the horizontal rotary body 4 and a second step motor described later for rotationally driving the vertical rotary body 6 are built in the horizontal opening 1 body 4, and each The television camera 7 is rotated within a range of 320 degrees in the horizontal direction and 135 degrees in the vertical direction by the operation of the step motor. Note that the television camera 7 has built-in focus, iris, and zoom adjustment motors.

A control box (described later) for remotely controlling the camera rotary table 1 and the television camera 7 is provided with an operation panel 8 shown in FIG. 3, and the operation panel 8 is provided with various keys. To explain the various keys one by one, the zoom switch 9, focus switch 10, and iris switch 11 are used to adjust the angle of view, focal length, and aperture of the television camera 7, respectively. The auto iris switch 12 is used to automatically adjust the aperture.

The proportion switch 13 is used when manually operating the television camera 7 horizontally or vertically.
By operating any one of the buttons, the television camera 7 is rotated in a direction corresponding to the position of each button. The auto scan switch 14 is used to select either an automatic repeating operation or a manual operation for the camera rotary table 1, and by pressing the switch 14, pre-registered locations are automatically and sequentially displayed. Further, when the pressing operation is released, the camera rotating table 1 can be rotated manually using the proportion switch 13.

The three horizontal speed switches 15 are used to set the rotation speed in the horizontal direction when automatically operating the camera rotating table 1. Three types of rotation can be achieved by selecting and pressing one of the switches 15. You can select one of the speeds.

The two vertical speed switches 16 are used to set the vertical rotation speed when automatically operating the camera rotating table 1, and two types of rotation can be achieved by selecting and pressing one of the switches 16. You can select one of the speeds.

The four station switches 17 are used to set in advance a specific position (hereinafter referred to as home position) to be displayed on the television camera 7, or to call up that specific position as necessary.
It is possible to set the home position of 4 corresponding to 7. Further, an LED (light emitting diode) 18 is incorporated in the center of each station switch 17, and is turned on when an external sensor, which will be described later, installed at each home position outputs an emergency signal.

The emergent engine switch 19 is used to rotate the camera turntable 1 to the home position based on an emergency signal output by an external sensor, and when pressed, an LED 20 built into the center lights up. ing. Further, by releasing the pressing operation, the operation of the camera rotating table 1 due to the emergency signal output from the external sensor can be canceled.

As shown in FIG.
Various keys are provided for use when setting automatic operation. To explain the various keys, the memory switch 22 is used to set each stop position during automatic operation, and by pressing the memory switch 22, operation data of the proportion switch 13, horizontal and vertical speed switches 15, 16, etc. will be stored in the RAM described later. will be registered. The two-stage memory mode switch 23a is used when setting the automatic operation in a plurality of modes and when selecting one of the two set modes, and by switching up or down, the A mode and B mode can be selected. It is possible to select one of the following. Similarly, the two-stage teaching mode switch 23k) is used to select either the automatic operation setting or the home position setting, and either can be selected by switching up or down.

The interval time dial 24 is used to set the stop time at each stop position during automatic operation, and by operating each three-digit dial 24, the stop time can be set in seconds.

The clear switch 25 is used to erase each set automatic driving mode.

Next, the electrical configuration of the remote control device for remotely controlling the camera rotating table 1 will be explained with reference to FIG. The output signals of each switch on the operation panel 8 are output to the transmitting side CPLI 28. A ROM 29 and a RAM 30 are connected to the sending CPU 28, and the ROM 29 stores a program for operating the sending CPU 28 in advance, and the RAM 30 stores each data for automatic operation set by each of the switches. It is now stored.

External sensors 31 connected to the receiving side CPU 33 (to be described later) are installed at each home position set by the station switch 17, and for example, an ultrasonic sensor or an infrared sensor is used to detect an intruder who has entered the home position. When an abnormality such as the above is detected, an emergency signal is output to the receiving CPU 33.

The output signal of the transmitting CPU 28 is output to a modulation circuit 32a, which modulates the digital signal output from the transmitting CPU 28 on a predetermined carrier wave for transmission, and the output signal is transmitted to the signal line. At step 27, the signal is output to the demodulation circuit 32b built in the camera rotating table 1.

The demodulation circuit 32b removes the carrier wave from the output signal output from the modulation circuit 32a, demodulates the digital signal, and outputs the demodulated signal to the receiving CPU 33. Therefore, the modulation circuit 32 in the Kuntrol box 26
a and a demodulation circuit 32b in the camera rotating table 1 constitute a modem.

G to receiving side CPLJ33; tROM34 and RAM35
is connected, the ROM 34 is pre-stored with a program for operating the camera rotating base 1 based on the output signal from the transmitting side CPU 28, and the RAM 35 is connected to the transmitting side CPU 28.
The output signal from U28 is temporarily stored, and this data and R
The receiving side CPU based on the program stored in OM34.
33 is now operational.

The output signal of the receiving side CPU 33 is output to the drive circuit 36. The drive circuit 36 includes a first step motor 37 for rotationally driving the horizontal rotor 4, a second step motor 38 for rotationally driving the vertical rotor 6, a focus adjustment motor 39 for the television camera 7, and an iris adjustment motor. 401 A zoom adjustment motor 41 is connected thereto.

Next, the operation of the remote control device for the camera rotating table 1 configured as described above will be explained.

Now, the operation for setting the desired automatic operation operation on the camera rotating table 1 will be explained according to FIG. 5. First, select either automatic operation mode A or B and turn the memory mode switch 23a. For example, when switching to A mode and releasing the pressed state of the auto scan switch 14, the sending side CPU 28 detects the release operation and performs 5TEP.
1. Hereinafter, 5TEP will be referred to as S), and if it is in the automatic operation state, stop it (S2). Next, in order to set automatic operation operation, switch the teaching mode switch 23b to the scan side and operate the clear switch 25 (33
, 84>, the transmitting CPU 28 erases the A-mode automatic driving data stored in the RAM 30 and initializes it (85).

In this state, for example, when the proportion switch 13 is operated to set automatic operation data for reciprocating between points A and B at different speeds, the sending side CPU 2B sends the The step motors 37 and 38 are driven to rotate the television camera 7 in the direction corresponding to the operation of the proportion switch 13 (S
6). In this way, while watching the monitor, rotate the TV camera 7 so that the desired point A is displayed, adjust the monitor image by operating the zoom switch 9, focus switch 10, and iris switch 11 if necessary, and adjust the horizontal speed. After selecting and pressing one of the switches 15 and setting the desired stop time with the interval time dial 24, when the memory switch 22 is pressed (S7), the transmitting side CPU 28 controls the TV camera 7 up to point A. The rotation angle, rotation speed, stopping time at point A, etc. are stored in the RAM 30 (
S8).

After this, in order to set automatic operation from point A to point B, operate the proportion switch 13 in the same manner as described above, rotate the television camera 7 so that it captures point B, and select which horizontal speed switch 15 After selecting and setting the desired stop time with the interval time dial 24, press the memory switch 22, and the transmitting side CPtJ28
The rotation angle and rotation speed of the television camera 7 up to the point and the stopping time at the eight points are stored in the RAM 30. With this operation, the operation data setting work for automatic reciprocating operation between points A and B at different speeds while stopping at points A and B for a predetermined period of time is completed. In addition, the TV camera 7 is at point A and B.
Regardless of the rotational path during point exploration, during automatic operation the robot moves linearly between both points, and the rotational speed in the vertical direction is calculated and stored based on the rotational speed in the horizontal direction. Thereafter, when the auto scan switch 14 is pressed (89), the automatic operation operation setting work is completed, and the transmitting side CPU 28 starts the automatic operation operation shown in FIG.

Also, to explain the procedure for setting multiple home positions, first press the auto scan switch 14 to stop automatic operation (Sl, S2), then switch the teaching mode switch 23t) to the station side (
S3), the transmitting CPU 28 enters a state where it receives output signals from each switch, and the proportion switch 13
etc. to display the desired home position on the monitor (310). In this state, press any one of the station switches 17 and press the memory switch 22 (811, S12>, the transmitting side CPtJ28 Store the home position in RAM30 (S13)
. By repeating such operations, up to four home positions can be set at arbitrary positions.

Next, a case in which the television rotating stand 1 is operated will be explained. Now, when the auto scan switch 14 is pressed (81), the sending CPU 28 performs automatic operation in either mode A or mode B selected by the memory mode switch 23a, as shown in FIG.
14. S15°516). Then, when any of the station switches 17 is pressed during automatic operation (815
), the transmitting side CPU 28 rotates the television camera 7 so as to display the home position corresponding to the station switch 17 via the receiving side CPLI 33 (S17
), this state continues until the station switch 17 is released.

Further, when the external sensor 31 detects an abnormality such as an intruder at any home position during automatic operation and outputs an emergency signal, the receiving 11t ICPLI 33 detects the signal (816). When the emergency switch 19 is pressed, the receiving side CPU 33 rotates the television camera 7 toward the home position where the emergency signal was output, and displays the home position on the monitor. This state is maintained until the output of the signal is stopped. Furthermore, if the emergency signal is output from the external sensor 31 and the emergency switch 19 is not pressed, the receiving side CPU 33
LEol 8 of the corresponding station switch 17 blinks while maintaining automatic operation (818.820>
.

As described above, in this remote control device, the control box 26 and the camera rotating table 1 are connected by a modem consisting of a modulation circuit 32a and a demodulation circuit 32b, and the signal line 2
7 can be configured with two or three wires including the ground wire, so the wiring work is extremely easy, and it is not easily affected by noise, so the signal wire 27 can be extended to a maximum of about 1 in 20. can.

In addition, it is possible to set in advance automatic driving operation in multiple modes that automatically repeat multiple points and display it on the monitor, and it is possible to automatically operate according to the set mode, so the operator can remotely control the operation each time. There is no need to operate the device, and monitoring work can be easily performed using a monitor.

In addition, multiple home positions can be set in advance separately from the automatic driving mode, and by operating the station switch 17, the desired home position can be called up and displayed on the monitor with priority over automatic driving, so the specific home position set as the home position can be You can quickly display and monitor your location. Furthermore, if the emergent engine switch 19 is pressed, when an abnormality is detected at each home position by the external sensor 31 provided at each home position, the home position will be displayed on the monitor regardless of the operation of the station switch 17. Therefore, the occurrence of an abnormality can be quickly discovered, and if the pressure on the emergency switch 19 is released, automatic operation will continue even if an abnormality is detected at the home position, and the abnormality will be detected. LEol8 of the station switch 17 corresponding to the home position is lit. Therefore, when the external sensor 31 is expected to output an emergency signal other than an abnormality such as an intruder, the emergency
By releasing the pressure on the switch 19, unnecessary interruption of automatic operation can be prevented, and the presence or absence of an emergency signal can be determined by LE0.
You can check it on 18.

[Second Embodiment] Next, a second embodiment embodying the present invention will be described with reference to FIG. In the remote control device of this embodiment, like the remote control device of the first embodiment, a control box 26 and a camera rotating table 1 are connected by two signal lines 27, and the transmission inside this control box 26 is Side CP
The signal output from U28 is outputted to the signal line 27 via the transmission side transmission circuit 51a, and is inputted to the reception side CPU 33 in the camera rotating table 1 via the reception side transmission circuit 51b.

The transmission side transmission circuit 51a will be explained below.
The base of a transistor 55a is connected to the output side of U28 via two inverters 52a and 53a and a resistor 54a, and the connection between the transistor 55a and the resistor 54a is grounded via a resistor 56a. The emitter of the transistor 55a is grounded, while a voltage of 5V is applied to the collector via a light emitting diode 57a as a light emitting element and a resistor 58a. This light emitting diode 57a has a phototransistor 59a as a light receiving element.
are arranged facing each other, and both constitute a photocoupler 60a as a first signal conversion means.

A light emitting diode 61a is connected to the emitter of the phototransistor 59a so as to be forward biased;
Two diodes 62a are connected between the cathode of the light emitting diode 61a and the collector of the phototransistor 59a.
, 63a are connected in series with reverse bias. Further, the diodes 62a and 63a are connected to the phototransistor 59a and the light emitting diode 61a. A surge absorber 64a for absorbing surges is connected in parallel to the diodes 62a and 63a, and both terminals of the surge absorber 64a are connected to one end of the signal line 27 via resistors 65a and 66a, respectively. .

A phototransistor 67 is provided in the light emitting diode 61a.
a are arranged facing each other, and the two constitute a photocoupler 68a. The emitter of the phototransistor 67a is grounded, and the collector is connected to the inverter 69a.
It is connected to the input side of the transmitting side CPtJ28 via. Roughly speaking, a voltage of 5V is applied between the phototransistor 67a and the inverter 69a via the resistor 70a.

The transmission side transmission circuit 51g is configured as described above, and the reception side transmission circuit 51b is configured in exactly the same manner. Therefore, for convenience, b is added to the end of each member number of the receiving side transmission circuit 51k), and the details thereof will be omitted. In this receiving side transmission circuit, a light emitting diode 61b as a light emitting element is used.
A photocoupler 68b as a second signal conversion means is constituted by the phototransistor 67b as a light receiving element. In addition, in order to operate each phototransistor 59a, 59b of both transmission circuits 51a, 51b,
A power supply 71 is connected between the diode 63a and the surge absorber 64a on the transmission side transmission circuit 51a side.

Next, regarding the remote control device for the camera turntable 1 configured as described above, particularly the operation of the transmission circuits 51a and 51b will be explained.

First, when operating various switches on the operation panel 8 to cause the camera rotary table 1 to perform a desired operation, when the transmitting side CPU 28 outputs a signal based on the switch operation, the signal is transmitted to the transmitting side transmission circuit 51a. 2 inverters 52a
, 52b, and between the pace emitters of the transistor 55a, turning the transistor 55a on and off according to the high/low level of the signal. As a result, current flows from the collector to the emitter of the transistor 55a, causing the light emitting diode 5
The phototransistor 7a emits light and outputs an optical signal, and the phototransistor 59a receives the optical signal and performs an on/off operation.

Then, with the ON operation of the phototransistor 59a,
As shown by the arrow, from this transistor 59a, a light emitting diode 61a, a power supply 71, a resistor 66a, a signal line 27, a resistor 66b of the reception side transmission circuit 51b, a phototransistor 59b, a light emitting diode 61b1, a resistor 65b,
A current flows in a circular manner through the signal line 27, and again to the resistor 65a of the transmission side transmission circuit 51a and the phototransistor 59a, forming a closed circuit (current loop).

Since the above-described closed circuit is formed in synchronization with the signal output by the transmitting side CPU 28, the receiving side transmission circuit 5
The light emitting diode 61b of 1b emits light and outputs an optical signal, and the phototransistor 67b that receives the optical signal performs an on/off operation. When the phototransistor 67b is off, 5■ is applied to the inverter 69b, and when the phototransistor 671) is on, current flows through the resistor 70b, causing a voltage drop, so a voltage lower than 5■ is applied to the inverter 69b. . Then, the inverter 69b inverts the voltage and outputs it to the receiving side CPU.
33, and the CPtJ 33 drives and controls each of the motors 37 to 41 via a drive circuit 36 based on the input signal, thereby causing the camera turntable 1 to perform a desired operation.

Note that when a closed circuit is formed as described above, current also flows through the light emitting diode 61a.
The phototransistor 67a that receives the optical signal turns on and outputs a signal to the transmitting side CPU28, but the transmitting side CPU
U28 is designed to nullify such signals. Moreover, this also applies to the case where a signal is output from the receiving side CPU 33, as will be described later.

Further, in order to form the above-described closed circuit, the phototransistor 59b needs to be turned on.

Therefore, when the transmitting side CPU 28 outputs a signal, the receiving side CPU 28
U33 causes the light emitting diode 57b to emit light and turns on the phototransistor 59b. This also applies to the case where a signal is output from the receiving side CPU 33, as will be described later.

The above is a case where a signal is output from the transmitting side CPtJ28 to the receiving side CPU33. CPU2
The same applies to the case where a signal is outputted to 8. That is,
Receiving side CPU 3 which inputs the emergency signal from external sensor 31
3 turns the light emitting diode 57b on and off to operate the phototransistor 59b. Then, a light emitting diode 61b is formed from this phototransistor 59b.

Resistor 65b, signal line 27, and transmission side transmission circuit 51
A current flows in a circular manner through the resistor 65a of the resistor 65a, the phototransistor 59a, the light emitting diode 61a1, the power supply 71, the resistor 66a, the signal line 27, and the resistor 66b1 of the receiving side transmission circuit 51b, the phototransistor 59b, forming a closed circuit. Ru.

Furthermore, the light emitting diode 61a of the transmission side transmission circuit 51a
emits light and outputs an optical signal, and the phototransistor 67a that receives the optical signal performs an on/off operation and inputs the signal to the transmitting side CPLI 28, and the transmitting side CPU 28 lights up the LED 18 of the operation panel 8.

As described above, in this remote control device, one CPU 28
．． The electrical signal outputted from 33 is connected to a photocoupler 60a,
60b, 68a, and 68b, the optical signal is converted into an electrical signal again, and then input to the other CPU 28.33.
Even if the signal output from U28.33 contains noise, it is blocked by the photocouplers 60a, 60b, 68a, and 68b and is rarely input to the other CPU28.33.

In addition, in the remote control device of this embodiment, in addition to operating the camera turntable 1 using signals from the control box 26, when the external sensor 31 detects an intruder, the camera turntable 1 sends an emergency signal to the control box 26. Although it is possible to output and light up the LED 18, it may be implemented as a remote control device that simply operates the camera rotating base 1 from the control box 26.

Furthermore, in the remote control device of this embodiment, the control box 26 and the camera rotating table 1 are connected by a signal line 27, and an electric signal output from either one is transmitted to the other via the signal line 27. However, for example, both sides26
．． A light emitting diode 57a as a light emitting element on the output side of 1
, 57b may be directly connected to phototransistors 67b and 67a as input-side light receiving elements, respectively, by optical fiber cables. In this case, the optical signal output from one of the light emitting diodes 57a, 57b is directly transmitted to the other phototransistor 6 via the optical fiber cable without being converted into an electrical signal.
7b and 67a, and malfunctions due to noise can be prevented in the same way as in the remote control device of this embodiment.

Furthermore, in the remote control device of this embodiment, light emitting diodes 57a, 57i), 61a, 61b are used as light emitting elements.
using phototransistors 59a and 5 as light receiving elements.
9b, 67a, and 67b are used, but these may be replaced with other light emitting elements or light receiving elements. For example, a semiconductor laser may be used as the light emitting element and a photodiode may be used as the light receiving element.

[Effects of the Invention] As detailed above, according to the remote control device for a television camera rotary stand of the first eight inventions, malfunctions due to noise are prevented and high reliability is ensured, and the number of signal lines is small. Wiring work is easy, and it also has excellent effects that enable long-distance remote control.

Furthermore, the remote control devices for television camera rotary bases of the second and third inventions exhibit excellent effects in that malfunctions due to noise can be prevented and high reliability can be ensured.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the electrical configuration of a remote control device according to a first embodiment embodying the present invention, FIG. 2 is a front view of a camera rotating table, FIG. 3 is a front view of an operation panel, and FIG. The figure is a front view showing the inside of the opening/closing lid of the operation panel, FIGS. 5 and 6 are flowcharts showing the operation of this remote control device, and FIG. 7 is a second embodiment of the remote control device embodying the present invention. FIG. 2 is a block diagram showing an electrical configuration. Camera turntable 1, television camera 7, control box 26, signal line 27, modulation circuit 32a1 demodulation circuit 32b
, light emitting elements 57a, 61b, light receiving elements 59a, 67b,
First signal conversion means 60a, second signal conversion means 68b
0 Patent applicant Maruwa Denshi Kagaku Co., Ltd. Agent
Person Patent attorney On 1) Soshiro (and 1 other person) Figure

Claims (1)

[Scope of Claims] 1. A remote control device that remotely controls a camera rotating table that supports a television camera so as to be rotatable in horizontal and vertical directions using a control box, which includes a modulation circuit that outputs a digital signal on a predetermined carrier wave; A remote control device for a television camera turntable, characterized in that a control box and a camera turntable are connected by a modem comprising a demodulation circuit that demodulates a digital signal from the carrier wave. 2. In a remote control device that uses a control box to remotely control a camera rotating table that supports a television camera so as to be rotatable in horizontal and vertical directions, the remote control device is provided on the control box side and transmits electrical signals from the control box to a light emitting element. a first signal converting means that converts the optical signal into an optical signal and converts the optical signal back into an electrical signal by a light receiving element; and an electrical signal from the light receiving element of the first signal converting means, which is provided on the television camera side. between the control box and the television camera, and a second signal conversion means that converts the signal into an optical signal using a light emitting element, converts the optical signal back into an electrical signal using a light receiving element, and outputs the signal to the camera rotating table; and between the control box and the television camera. and a signal line for transmitting an electric signal from the light receiving element of the first signal converting means to the light emitting element of the second signal converting means. Device. 3. In a remote control device that remotely controls a camera rotating table that supports a television camera so as to be rotatable in horizontal and vertical directions using a control box, the remote control device is provided on the control box side and converts electrical signals from the control box into optical signals. a light-emitting element provided on the television camera side, a light-receiving element that receives an optical signal from the light-emitting element, converts it back into an electric signal, and outputs the electric signal to the camera rotating table; and the control box. 1. A remote control device for a television camera turntable, comprising: an optical fiber cable provided between the light emitting element and the television camera for transmitting an optical signal from the light emitting element to the light receiving element.