JP3526882B2 - TV camera remote control - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device for a television camera in which various functions such as pan and tilt of the television camera are operated by remote control. is there. 2. Description of the Related Art Conventionally, in order to obtain weather information, images from above, etc., a television camera supported by a camera platform is installed at various places such as outdoors and on a ceiling, and a photographing position by the television camera is set. For example, pan driving means disposed on the camera platform, pan by tilt driving means, tilt operation, and zoom, focus operation and the like of the TV camera are provided so as to be remotely controllable,
2. Description of the Related Art There is known a remote control device of a television camera which is operated from a remote position by an operator. [0003] In addition, regarding remote control of the television camera, operating states of functions such as pan, tilt, zoom, and focus at a specific shooting position (shot) are set and stored in advance, and the current shooting position is set. For example, a technology that controls the movement of each function to end simultaneously when automatically changing to the memory shooting position
It is known, as can be seen in 58-6163. In the prior art, when changing from an arbitrary photographing position to a preset memorized photographing position, an operator sets a moving time in order to simultaneously start and stop the movement of each function, Control is performed by outputting a driving signal to each driving means at a moving speed calculated in accordance with the instructed moving time. At that time, the movement is not always completed in the instructed time, and for a function with a large movement amount, for example, pan or tilt, the movement may not be completed within the instructed time even at the maximum movement speed. In the above-mentioned prior example, the instruction time is automatically increased and updated and corrected so that the movement of each function is completed at the same time. [0005] However, as described above, the moving speed of each function at the time of changing the photographing position can be determined by setting the moving time instruction setting by the operator and the shortest.
The control to perform the correction by the automatic correction based on the comparison with the movable time has the following problems. (1) If the designated time for the movement amount from the current position to the registered destination position is small, the movement of each function does not end at the same time, so that the movement is performed without any notice to the operator. The time has changed and it is not the desired time. (2) With respect to the movement of the photographing position, firstly, there are two cases where only the image at the photographing position where the movement has been completed is required to complete the movement in as short a time as possible.
In some cases, it is necessary to complete the movement at an appropriate speed because the moving image is also required.In the former case, it is sufficient to instruct the user to minimize the movement time, but the shortest movement time is unknown. in it may not perform its settings simply, sometimes noise problems reached the maximum travel speed of the moving amount, also the unknown during movement of the image is the relationship between the shortest travel time at the time set in the latter The operation of instructing the moving time to obtain a suitable moving speed is similarly complicated. SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide a remote control device for a television camera in which the moving time can be set by a simple instruction operation in relation to the shortest moving time when the photographing position is moved. It is assumed that. In order to achieve the above object, a remote control device for a television camera according to the present invention has a basic configuration shown in FIG. The pan head 4 is installed on the platform 4 so as to be capable of panning and tilting. The pan head 4 is provided with a pan driving unit 6 for performing panning by turning motion of the television camera 1 and a tilt driving unit 7 for performing tilting by tilting up and down, Moreover, double the zoom lens 3 to a zoom drive means 8 for zooming, focus driving means 9 for focusing is installed
A number (four) of functions to be controlled are provided, and a control signal is output from the drive control means 11 to the drive means 6 to 9 of these functions, and the respective stop positions and drive speeds are controlled. . On the other hand, a shot storage means 12 for storing position information of each function at a specific photographing position in advance is provided, and the position information of the target position and the drive control means 11 stored in the shot storage means 12 are provided. Upon receiving the position information of the current position and the information of the maximum movement speed, the shortest time calculation means 13 starts and ends the functions simultaneously from the movement amount of each function and the maximum movement speed in the movement from the current position to the target position. Calculate the shortest moving time required to perform. A moving time setting means 14 which is operated by an operator to set a moving time from the current position to the target position is provided, and based on signals from the shot storing means 12 and the moving time setting means 14, When moving from the current photographing position to the target position, the drive control is performed so that the drive speeds of the drive units 6 to 9 are the same at the end of the movement of the drive units 6 to 9. The control amount by the means 11 is set. That is, the signals from the shortest time calculating means 13 and the moving time setting means 14 are input to the display means 15, and the display means 15 sets the value set by the moving time setting means 14 and the shortest movement by the shortest time calculating means 13. Contrast time and finally
Move by the shortest travel time or a set value longer than the shortest travel time
The moving time is displayed. For example, the set value by the moving time setting means 14 is set so as not to be displayed in a time shorter than the shortest moving time by the shortest time calculating means 13. If the set value is smaller than the shortest time, an error display (color-coded display) is performed. Based on this display, the moving time is reset by the moving time setting means 14 and finally the shortest moving time is set. Move over
The time is displayed . The moving time data displayed on the display means 15 is output to the speed calculating means 16, and the speed calculating means 16
Then, the moving speed of each function is calculated and set so that the movement of each function is completed at the same time in the moving time. Then, the speed signal from the speed calculation means 16 and the target position information from the shot storage means 12 are output to the drive control means 11, and the drive control means 11 pans, tilts, zooms, and focuses from the current position to the target position. , And at the same time, the operation of each of the driving means 6 to 9 is started to move at a predetermined speed and output a driving signal so as to stop at the target position at the same time. Note that the above function is 4
Not limited to the type, for example, a height function for moving the TV camera up and down is also conceivable, and the number of functions to be controlled is increased or decreased as needed. In the remote control device for a television camera as described above, a television camera having a plurality of functions to be controlled can remotely control the change of the photographing position by operating the driving means of each function. In order to obtain an image at a predetermined shooting position, position information of each function at the shooting position is registered in the shot storage unit. Then, when moving from the current shooting position to the target position stored in the shot storage means, each function starts simultaneously from the moving amount from the current position to the target position and the maximum moving speed by the shortest time calculating means. Calculate the shortest moving time required to finish simultaneously, and compare the shortest moving time with the set value by the moving time setting means, and finally move the display means to the minimum moving time or more.
Is displayed , and the moving speed of each function is calculated based on the moving time so that the moving is completed simultaneously when each of the functions reaches the target position. A signal based on the calculated moving speed is calculated. Is output to each drive means to control the movement to the target position. Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows the overall configuration of a remote control device for a television camera according to this embodiment. The control target in this embodiment is
4 functions: tilt, tilt, zoom and focus
Case. The television camera 1 comprises a camera body 2 and a zoom lens 3. The camera body 2 is supported by a pan head 4 capable of panning in a turning direction and tilting in a vertical tilting direction. The camera platform 4 is mounted on a fixed portion by a tripod 5 or the like. The pan and tilt operations of the camera platform 4 are provided so as to be driven by servo motors 42 and 43 (FIG. 3) described later. Similarly, zoom and focus operations of the zoom lens 3 of the television camera 1 are provided so as to be driven by servo motors 44 and 45 (FIG. 3) described later. Then, the pan, tilt, zoom,
The focus operation is configured so that remote control can be performed based on an operation of the controller 10 by an operator.
The camera platform 4 of the television camera 1 and the controller 10 are connected by communication means such as a cable 21 (analog signal), and a telephone line or the like may be used as this communication means. The operating members of the controller 10 will be described. A focus knob 22, a zoom switch 23, and a joystick 24 are provided for performing normal zoom, focus, pan, and tilt operations of the television camera 1. The focus knob 22 is a rotary operation member.
This is for adjusting the focus far. The zoom switch 23 is of a seesaw type. The swing switch is used to operate a potentiometer 35 (FIG. 3) to perform wide-angle / telephoto zoom adjustment. The joystick 24 is a rod-shaped operating member that can be tilted left and right and up and down. The left and right tilts operate a pan potentiometer 36 (FIG. 3) to perform left and right pan adjustments. The upper and lower tilts are adjusted by operating the potentiometer 37 (FIG. 3). The zoom switch 23
And each potentiometer 35 to 37 of the joystick 24
Is provided in a structure that returns to the neutral position when the operation of the operation member is released. On the top of the controller 10, a number of shot switches 25 and a memo switch 26 for writing are arranged. The shot switch 25 and the memo switch 26 are provided in an on / off push button type. When the shot switch 25 is turned on when the memo switch 26 is pressed once and is in the write mode,
The position information of the pan, tilt, zoom, and focus at that time, that is, the data of the photographing position, is recorded at a predetermined address, and when turned on when not in the write mode, the position information recorded at the predetermined address is recorded. And functions as the above-described shot storage unit 12. Further, a time adjustment knob 27 is provided, and the time adjustment knob 27 is configured as a rotary encoder.
The setting of the moving time for moving from the current position to the target photographing position is adjusted, and the setting contents are taken in when the shot switch 25 is turned on in a state other than the writing mode. In addition, the controller 10 has a time display 28
Are arranged. The time display unit 28 is for displaying the travel time to move from the current position to the target position,
Shortest travel time is displayed at the time the shot switch 25 is operated, most of the time display in the time adjustment knob 27
The final movement time is set by changing the movement time to a short movement time or longer . An execution switch 29 is provided, and is operated when the movement to the target position is started at the time displayed on the time display section 28. Next, FIG. 3 shows a schematic configuration of the controller. The controller 10 has a built-in CPU 30 for performing arithmetic processing, a RAM 31 (battery backup), and a ROM.
32 is connected by a data bus 33, and signals (voltages) of the potentiometers 35 to 37 operated by the zoom switch 23 and the joystick 24 are input via an A / D converter 34. Similarly, an I / O port The signal of the rotary encoder 39 operated by the focus knob 22, the signal of the shot switch 25, the signal of the memo switch 26, and the signal signal of the rotary encoder 40 operated by the time adjustment knob 27 are input through the time display unit 28 ( LED or LC
D) is connected. Further, the CPU 30 has a D / A converter 41.
, A control signal, specifically a position signal, is output to the pan driving means 6, the tilt driving means 7 of the camera platform 4, and the zoom driving means 8 and the focus driving means 9 of the zoom lens 3. Servo motors 42 to 45 are installed in the respective driving means 6 to 9 to operate respective driving members to perform pan, tilt, zoom and focus operations, and the respective operating positions are used for position detection. Detected by potentiometers 46-49. Then, the position command signal from the D / A converter 41 and the position detection signals from the position detection potentiometers 46 to 49 are input to the position servo amplifiers 51 to 54, and the servo motors 42 to 45 are set so that they match. Is performed. The remote control of the shooting position of the television camera 1 by the arithmetic processing of the CPU 30 will be described with reference to the flowcharts of FIGS. In FIG. 4, after the control starts upon power-on, initialization is performed in step S1, and the on / off state of the memo switch 26 is read (S2). Then, in step S3, it is determined whether or not the memo switch 26 has been turned on. If this determination is NO, the process directly proceeds to step S5. If the determination is YES and the memo switch 26 is turned on, After setting the writing mode in step S4, the process proceeds to step S5. In step S5, the on / off state of the shot switch 25 is read. In step S6, it is determined whether or not the shot switch 25 has been turned on. When the determination is NO in which the shot switch 25 is in the OFF state, the operation states of the joystick 24, the focus knob 22, and the zoom switch 23 are captured from the signals of the potentiometers 35 to 37 and the rotary encoder 39 in step S7, and the operation amount is determined. The data is converted into position data of a function and added to the current position (S8), and the updated current position signal is output to the position servo amplifiers 51 to 54 of the driving means 6 to 9 via the D / A converter 41 (S8).
9) If there is a deviation from the position detection signals from the position detection potentiometers 46 to 49, the servo motors 42 to 45 are driven so as to match the positions of the input signals, and pan and tilt driving by operating the joystick 24 is performed. , And focus and zoom driving by operating the focus knob 22 and the zoom switch 23 are performed in accordance with the respective manual operation amounts. On the other hand, if the determination in step S6 is YES and any one of the shot switches 25 is turned on, it is determined in step S10 whether or not the writing mode has been set, that is, whether the memo switch 26 has been turned on. It is determined whether or not the current position of the pan, tilt, zoom, and focus (position detection potentiometer) is stored in the address of the memory corresponding to the number of the shot switch 25 that was turned on in step S11.
After writing the position information input to the D / A converter 41 based on the signals 46 to 49), the write mode is released (S12). Subsequently, if the determination in step S10 is NO and only the shot switch 25 is turned on without being in the write mode, the process proceeds to step S13 in FIG. Memory (R
AM31), the pan, tilt,
Reads information on zoom and focus target position Am
In step S14, information on the current position of each function is fetched and substituted into An. Then, each movement amount obtained by subtracting the current position An from the target position Am of each function is calculated as the maximum transition speed of each function.
The minimum travel time tp to tf required for each transition is calculated by dividing by Vp to Vf (S15), and the minimum travel time tp to tf is compared with each other in step S16 to extract the longest travel time. The longest moving time is set as the shortest moving time to when each function is started and stopped at the same time. In step S17, the moving time t is displayed on the time display unit 28. At the first stage, the shortest moving time to is displayed. Subsequently, step S18 is for determining whether or not the transition may be executed with the setting of the movement time displayed on the time display unit 28, that is, whether or not the execution switch 29 has been turned on. Goes to step S21. On the other hand, when adjusting to another movement time instead of the movement in the shortest movement time to, the process proceeds to step S19 and the time of the time display unit 28 is changed by operating the time adjustment knob 27. , A new travel time is set. It is determined in step S20 whether or not the time t set by the time adjustment knob 27 is equal to or longer than the shortest movement time to. If YES, the process returns to step S17 to display the changed movement time t in the time display section. Although displayed at 28, the setting display for a time shorter than the shortest movement time to is determined by a NO determination is invalidated. When the execution is performed with the movement time t set as described above, first, in step S21, the movement amount Am-An of each function is divided by the movement time t to calculate each unit time movement amount. And each current position An
And updates it as the new current position An. Then, in step S22, the unit time t is synchronized with the update timer.
= 1 (for example, several milliseconds to several tens of milliseconds), and when the unit time has elapsed, the process proceeds to step S23 to output the updated current position signal to the D / A converter 41. The position signals are input to the position servo amplifiers 51 to 54, and the servo motors 42 to 45 are driven by comparison with the position detection signals. The movement time t is subtracted in step S24, and the movement time t is calculated in step S25. Is determined to be 0, and the above-described step S21 is performed until the time is up.
Steps S24 to S24 are repeated to update the current position, drive the servo motors 42 to 45, and drive the servo motors 42 to 45 to stop at the shooting positions corresponding to the shot switches 25 registered in advance. According to the above-described embodiment, the movement of the photographing position from the current position to the target position is firstly performed.
When the operator operates the shot switch 25 corresponding to the target position, the shortest movement time required for each function to start and stop simultaneously from the current position with respect to the target position is displayed on the time display unit 28, The movement time can be operated and set by the time adjustment knob 27 only to a value larger than the shortest movement time, and setting to a value smaller than the shortest movement time is prevented, and each function ends the movement at the same time. Further, in the above embodiment, since the execution switch 29 is separately provided, occurrence of an erroneous operation can be avoided as compared with the case where the movement is started by operating the shot switch 25. In the above embodiment, the time display section
Although the display of the travel time shorter than the shortest travel time is prevented at 28 to avoid setting the travel time shorter than the shortest travel time, the time adjustment knob 27 is also used to prevent the display of the shorter travel time. While it is possible display, it indicates the error display, color display, etc., finally the shortest travel time than
The upper travel time may be displayed . According to the present invention as described above, the shortest movement time required for each function to start and end simultaneously from the current position to the destination position is calculated by the shortest time calculation means. the moving time setting means for adjusting sets the movement time provided, the set value of the movement time and the shortest moving <br/> time and finally the shortest travel time or travel time by comparing
Display means for displaying a message, and a moving time displayed on the display means
Between each function so that the movement of each function ends simultaneously.
Speed for calculating and setting the movement speed of each function
With the calculation means , the moving speed is not automatically changed against the operator's intention, and the moving time can be set while confirming the relationship with the shortest moving time. In addition, it is possible to set a traveling time at which a desired speed can be obtained, and it is possible to reduce the number of rehearsals and improve operability.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a basic configuration diagram for clearly showing the configuration of a television camera remote control device according to the present invention. FIG. 2 is an overall configuration diagram of a television camera remote control device showing a specific example. 3 is a circuit diagram showing a schematic configuration of the controller. [FIGS. 4 and 5] A main part flowchart for explaining the processing of the controller. [Description of References] 1 TV camera 3 Zoom lens 4 Pan head 6 Pan driving means 7 Tilt driving Means 8 Zoom drive means 9 Focus drive means 10 Controller 11 Drive control means 12 Shot storage means 13 Minimum time calculation means 14 Transition time setting means 15 Display means 16 Speed calculation means 25 Shot switch 27 Time adjustment knob 28 Time display section

Claims (1)

(57) [Claims 1] Each driving means for driving each function of a television camera having a plurality of functions to be controlled is provided, and the position of each function at a specific shooting position is provided. A drive control means controls the operation of the drive means so that each function is simultaneously started and simultaneously ended from the current shooting position at the target position recorded in the shot storage means. A remote control device for a television camera to be controlled, comprising: receiving position information of a target position stored in the shot storage means, and determining each function based on a movement amount and a maximum movement speed of each function in moving from a current position to a target position. A shortest time calculating means for calculating the shortest moving time required for the simultaneous start and the simultaneous end, Receiving a signal from the moving time setting means operated by the rotator to set a moving time from the current position to the target position, and calculating the set value and the shortest time by the moving time setting means. Shortest travel time by means
And finally the shortest travel time or less than the shortest travel time
Display means for displaying the travel time according to the above set values ,
Speed calculating means for receiving the signal of the display means and calculating and setting the moving speed of each function so that the movement of each function is completed simultaneously with the moving time displayed on the display means; A signal and a target position information from the shot storage means are input to the drive control means, and the drive control means outputs a control signal for moving the drive means of each function at a respective speed. Remote control device.