CN214338025U - Control device for remotely controlling zoom and focus of camera - Google Patents
Control device for remotely controlling zoom and focus of camera Download PDFInfo
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- CN214338025U CN214338025U CN202120617428.6U CN202120617428U CN214338025U CN 214338025 U CN214338025 U CN 214338025U CN 202120617428 U CN202120617428 U CN 202120617428U CN 214338025 U CN214338025 U CN 214338025U
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Abstract
The application relates to the technical field of industrial detection, in particular to a control device for remotely controlling zooming and focusing of a camera, which comprises an MCU central processing unit, and a voltage reduction module, a temperature detection module and a communication module which are respectively and electrically connected with the MCU central processing unit; the MCU central processing unit is used for controlling the work of each module and the logic control of the whole system; the voltage reduction module provides stable working voltage for a control device for remotely controlling the zooming and focusing of the camera; the temperature detection module is used for detecting the working temperature of the camera; the communication module provides a communication connection channel for the PC side software. The utility model discloses an installed the operating temperature detection module of camera lens, carried out automatic compensation according to inside predetermined temperature focus position curve again for the image of shooting is more clear. Meanwhile, a high-precision position sensor, namely a focusing position feedback module and a zooming position feedback module is used, so that the position detection and the focusing and zooming control are more accurate, and meanwhile, the control is more stable and reliable, and the image quality is clearer.
Description
Technical Field
The utility model relates to an industrial control technical field, concretely relates to remote control camera zooms controlling means of focus.
Background
In monitoring systems in the fields of road, forest fire prevention and the like, a single fixed focal length lens is not suitable for the requirements of current development. The zoom lens can be remotely controlled by a PC (personal computer) and the image quality (focusing adjustment) can be adjusted simultaneously, so that the lens is developed. To achieve this function, it is necessary to mount an actuator for adjusting the focal length, a detector, and a driving unit for controlling them on a conventional lens with a fixed focal length. Meanwhile, for the diversity of applications, the driving unit must also include more functions, such as a preset position to implement auto-cruising; for example, in order to obtain a clearer image quality, the focus must be automatically compensated according to the operating temperature of the lens.
Therefore, how to design a control device capable of remotely controlling the zoom and focus of a camera is a technical problem which needs to be solved at present.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the utility model is to provide a remote control camera zooms controlling means of focus can carry out automatic compensation according to the camera temperature, adjusts zooming and focusing according to focus position sensor and zoom position sensor's feedback information simultaneously, and control is more accurate, and the shooting effect is clear.
In order to solve the above technical problem, the present invention provides a control device for remotely controlling zoom and focus of a camera, comprising: the device comprises an MCU central processing unit (11), and a voltage reduction module (14), a temperature detection module (15) and a communication module (17) which are respectively electrically connected with the MCU central processing unit (11);
the MCU central processing unit (11) is used for controlling the work of each module and the logic control of the whole system;
the voltage reduction module (14) provides stable working voltage for a control device for remotely controlling the zooming and focusing of the camera;
the temperature detection module (15) is used for detecting the working temperature of the camera;
and the communication module (17) provides a communication connection channel for the PC side software.
Furthermore, the MCU central processing unit (11) adopts an STC8A8K64S4A12 single chip; the voltage reduction module (14) adopts an L78M05 chip; the temperature detection module (15) adopts an LM135 metal shell temperature sensor; the communication module (17) adopts a MAX485CSA chip.
Furthermore, the control device for remotely controlling the zoom and the focus of the camera further comprises a zoom motor driving module (16) electrically connected with the MCU central processing unit (11); the zooming speed regulation control module (161), the zooming position feedback module (162) and the zooming forward and reverse limiting module (163) are respectively and electrically connected with the zooming motor driving module (16);
the zooming speed regulation control module (161) is used for controlling the rotating speed of the zooming motor;
the zooming position feedback module (162) is used for detecting the real-time position of the zooming lens;
and the zooming forward and reverse limiting module (163) is used for limiting the rotatable maximum angle and the rotatable minimum angle of the zooming motor.
Further, the zoom motor driving module (16) adopts an A4950 chip; the zooming speed regulation control module (161) adopts the PWM of the MCU central processing unit (11); the zooming position feedback module (162) adopts an ADC conversion value of a multi-turn potentiometer; the zooming forward and reverse limiting module (163) adopts a micro-contact switch.
Furthermore, the control device for remotely controlling the zoom and the focus of the camera further comprises a focus motor driving module (12) electrically connected with the MCU central processing unit (11); a focusing speed regulation control module (121), a focusing position feedback module (122) and a focusing forward and reverse limiting module (123) which are respectively electrically connected with the focusing motor driving module (12);
the focusing speed regulation control module (121) is used for controlling the rotating speed of the focusing motor;
the focusing position feedback module (122) is used for detecting the real-time position of the focusing lens;
and the focusing forward and reverse limiting module (123) is used for limiting the rotatable maximum angle and the rotatable minimum angle of the focusing motor.
Further, the focusing motor driving module (12) adopts an A4950 chip; the focusing speed regulation control module (121) adopts PWM of the MCU central processing unit (11); the focusing position feedback module (122) adopts an ADC conversion value of a multi-turn potentiometer; the focusing forward and reverse limiting module (123) adopts a micro-contact switch.
Furthermore, the control device for remotely controlling the zoom and the focus of the camera comprises a switching motor driving module (13) electrically connected with the MCU central processing unit (11); a switching speed regulation control module (132) and a switching forward and reverse limiting module (131) which are respectively electrically connected with the switching motor driving module (13);
the switching speed regulation control module (132) is used for controlling the rotating speed of the switching motor;
and the switching forward and reverse limiting module (131) is used for limiting the rotatable maximum angle and the rotatable minimum angle of the switching motor.
Further, the switching motor driving module (13) adopts an A4950 chip; the switching speed regulation control module (132) adopts PWM of the MCU central processing unit (11); the switching forward and reverse limiting module (131) adopts a micro-contact switch.
Compared with the prior art, the utility model has the advantages that:
1. by installing the working temperature detection module of the lens, the focal length position change caused by the size error of the mechanical part along with the deformation of the working temperature can be automatically adjusted according to the internal preset temperature-focal length position curve, namely, the automatic compensation function, so that the shot image is clearer.
2. The high-precision position sensors, namely the focusing position feedback module and the zooming position feedback module are used, the detected position is more accurate, the focusing and zooming control is more accurate according to the position information, the image quality is clearer, meanwhile, the control is more stable and reliable, and the performance is better.
3. The remote PC end can be connected through the communication module, the setting parameters of the system can be remotely set and controlled, and the operation is more convenient and faster.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic circuit diagram of the MCU cpu (11) of the present invention.
Fig. 3 is a circuit diagram of the focusing motor driving module (12) and the module connected thereto according to the present invention.
Fig. 4 is a circuit diagram of the switching motor driving module (13) and the connection module thereof according to the present invention.
Fig. 5 is a schematic circuit diagram of the voltage reduction module (14) of the present invention.
Fig. 6 is a schematic circuit diagram of the temperature detection module (15) of the present invention.
Fig. 7 is a circuit diagram of the zoom motor driving module (16) and the module connected thereto according to the present invention.
Fig. 8 is a schematic circuit diagram of the communication module (17) of the present invention.
Detailed Description
The invention is explained in detail below with reference to the accompanying drawings:
in this embodiment, as shown in fig. 1, a control device for remotely controlling zoom and focus of a camera includes an MCU central processing unit (11), and a voltage reduction module (14), a temperature detection module (15), and a communication module (17) electrically connected to the MCU central processing unit, respectively. Preferably, the MCU central processing unit (11) adopts an STC8A8K64S4A12 single-chip microcomputer chip; the voltage reduction module (14) adopts an L78M05 chip; the temperature detection module (15) adopts an LM135 metal shell temperature sensor; the communication module (17) adopts a MAX485CSA chip. In this embodiment, fig. 2 to 8 show the connection relationship between the modules 11 to 17. The MCU central processing unit (11) is used for controlling the work of each module and the logic control of the whole system, and the connection circuit pins of the MCU central processing unit are shown in figure 2;
the voltage reduction module (14) provides stable working voltage for the control device for remotely controlling the zoom focusing of the camera, and a connection circuit of the voltage reduction module is shown in fig. 5, wherein 12Vin is an external input power supply anode, GND is digital ground, AGND is analog ground, PE is an external ground terminal, AVCC provides power for AVCC in fig. 2, and +5V is a common power supply anode;
the temperature detection module (15) is used for detecting the working temperature of the camera and feeding back the working temperature to the MCU central processing unit (11), the connection circuit of the temperature detection module is shown in fig. 6, wherein an ADC2 is connected with an ADC2 in fig. 2, and pins 1, 2 and 3 of a VR3 are connected with an external temperature sensor;
the communication module (17) provides a communication connection channel for the PC software, the PC software can set the initialization parameters of the control device, the initialization parameters may include communication parameters, motor driver chip parameters, motor direction setting, position direction setting, preset position parameters, focal length compensation parameters, and the like, and the connection circuit is shown in fig. 8, in which RXD-2, TXD-2, and RSDIR are connected with RXD-2, TXD-2, and RSDIR in fig. 2.
In a preferred embodiment, the control device for remotely controlling the zoom and focus of the camera further comprises a zoom motor driving module (16) electrically connected with the MCU central processing unit (11); the zooming speed regulation control module (161), the zooming position feedback module (162) and the zooming forward and reverse limiting module (163) are respectively and electrically connected with the zooming motor driving module (16). Preferably, the zoom motor driving module (16) adopts an A4950 chip; the zooming speed regulation control module (161) adopts the PWM of the MCU central processing unit (11); the zooming position feedback module (162) adopts an ADC conversion value of a multi-turn potentiometer; the zooming forward and reverse limiting module (163) adopts a micro-contact switch. The zoom speed regulation control module (161) is used for controlling the rotating speed of the zoom motor of the camera according to the instruction of the MCU central processing unit (11), and the connection circuit of the zoom speed regulation control module is shown by PWM0 and PWM1 in figure 7, wherein PWM0 and PWM1 are connected with PWM0 and PWM1 in figure 2; the zoom position feedback module (162) is used for detecting the real-time position of the zoom lens of the camera and feeding back the real-time position to the MCU central processing unit (11), the connection circuit of the zoom position feedback module is shown by referring to an ADC0 in FIG. 7, wherein an ADC0 is connected with an ADC0 in FIG. 2, and pins 1, 2 and 3 of a VR1 are connected with an external position sensor; the zooming forward and reverse limiting module (163) is used for limiting the maximum angle and the minimum angle which the zooming motor can rotate, so as to prevent the equipment from rotating beyond the range and causing damage, and the connection circuit is shown by D1, D3 and S2 in fig. 7, wherein 1, 2 and 3 pins of S2 are connected with an external limiting switch.
In a preferred embodiment, the control device for remotely controlling zoom and focus of the camera further comprises a focus motor driving module (12) electrically connected with the MCU central processing unit (11); the focusing speed regulation control module (121), the focusing position feedback module (122) and the focusing forward and reverse limiting module (123) are respectively and electrically connected with the focusing motor driving module (12). Preferably, the focusing motor driving module (12) adopts an A4950 chip; the focusing speed regulation control module (121) adopts PWM of the MCU central processing unit (11); the focusing position feedback module (122) adopts an ADC conversion value of a multi-turn potentiometer; the focusing forward and reverse limiting module (123) adopts a micro-contact switch. The focusing speed regulation control module (121) is used for controlling the rotating speed of a focusing motor of the camera according to the instruction of the MCU central processing unit (11), and the connection circuit of the focusing speed regulation control module is shown by PWM2 and PWM3 in the figure 3, wherein PWM2 and PWM3 are connected with PWM2 and PWM3 in the figure 2; the focusing position feedback module (122) is used for detecting the real-time position of the camera focusing lens and feeding the real-time position back to the MCU central processing unit (11), the connection circuit of the focusing position feedback module is shown by referring to an ADC1 in FIG. 3, wherein an ADC1 is connected with an ADC1 in FIG. 2, and pins 1, 2 and 3 of a VR2 are connected with an external position sensor; the focusing forward and reverse limiting module (123) is used for limiting the maximum angle and the minimum angle of the rotation of the camera focusing motor and preventing the device from being damaged due to the fact that the rotation of the focusing motor exceeds the operation range, and the connection circuit of the focusing forward and reverse limiting module is shown in D2, D4 and S3 of figure 3, wherein 1, 2 and 3 pins of S3 are connected with an external limiting switch.
In a preferred embodiment, the control device for remotely controlling zoom and focus of the camera further comprises a switching motor driving module (13) electrically connected with the MCU central processing unit (11); and the switching speed regulation control module (132) and the switching forward and reverse limiting module (131) are respectively electrically connected with the switching motor driving module (13). Preferably, the switching motor driving module (13) adopts an A4950 chip; the switching speed regulation control module (132) adopts PWM of the MCU central processing unit (11); the switching forward and reverse limiting module (131) adopts a micro-contact switch. The switching speed regulation control module (132) is used for controlling the rotating speed of the photosensitive film switching motor according to the instruction of the MCU central processing unit (11), and the connection circuit of the switching speed regulation control module is shown by PWM4 and PWM5 in fig. 4, wherein PWM4 and PWM5 are connected with PWM4 and PWM5 in fig. 2; the switching forward and reverse limiting module (131) is used for limiting the maximum angle and the minimum angle of the rotation of the switching motor and avoiding the damage of equipment caused by the rotation of the switching motor exceeding the allowable range, the connection circuit of the switching forward and reverse limiting module is shown by D5, D6 and S4 in figure 4, wherein 1, 2 and 3 pins of S4 are connected with an external limiting switch.
The working principle of the embodiment is as follows:
in the initialization process, PC end control software connected with the communication module is used for setting initialization working parameters for the control device for the zoom focusing of the remote control camera, wherein the initialization working parameters comprise communication parameters, motor driving chip parameters, motor direction setting, position direction setting, preset position parameters, focal length compensation parameters and the like. In the running process of the camera equipment, the control device for remotely controlling the zooming and focusing of the camera obtains position information through the focusing position feedback module and the zooming position feedback module and feeds the position information back to the MCU central processing unit (11), and then the MCU central processing unit (11) combines a control command sent by PC end software to control the focusing motor, the zooming motor and the photosensitive film switching motor to execute corresponding actions, such as zooming large and zooming small.
The above embodiments are merely illustrative of the technical solutions of the present invention, and the present invention is not limited to the above embodiments, and any modifications or alterations according to the principles of the present invention should be within the protection scope of the present invention.
Claims (8)
1. A control device for remotely controlling zoom and focus of a camera, comprising: the device comprises an MCU central processing unit (11), and a voltage reduction module (14), a temperature detection module (15) and a communication module (17) which are respectively electrically connected with the MCU central processing unit (11);
the MCU central processing unit (11) is used for controlling the work of each module and the logic control of the whole system;
the voltage reduction module (14) provides stable working voltage for a control device for remotely controlling the zooming and focusing of the camera;
the temperature detection module (15) is used for detecting the working temperature of the camera;
and the communication module (17) provides a communication connection channel for the PC side software.
2. The control device for remotely controlling zoom focusing of a camera according to claim 1, characterized in that: the MCU central processing unit (11) adopts an STC8A8K64S4A12 singlechip chip; the voltage reduction module (14) adopts an L78M05 chip; the temperature detection module (15) adopts an LM135 metal shell temperature sensor; the communication module (17) adopts a MAX485CSA chip.
3. The control device for remotely controlling zoom focusing of a camera according to claim 1, characterized in that: the device also comprises a zoom motor driving module (16) electrically connected with the MCU central processing unit (11); the zooming speed regulation control module (161), the zooming position feedback module (162) and the zooming forward and reverse limiting module (163) are respectively and electrically connected with the zooming motor driving module (16);
the zooming speed regulation control module (161) is used for controlling the rotating speed of the zooming motor;
the zooming position feedback module (162) is used for detecting the real-time position of the zooming lens;
and the zooming forward and reverse limiting module (163) is used for limiting the rotatable maximum angle and the rotatable minimum angle of the zooming motor.
4. The control device for remotely controlling zoom focusing of a camera according to claim 3, characterized in that: the zoom motor driving module (16) adopts an A4950 chip; the zooming speed regulation control module (161) adopts the PWM of the MCU central processing unit (11); the zooming position feedback module (162) adopts an ADC conversion value of a multi-turn potentiometer; the zooming forward and reverse limiting module (163) adopts a micro-contact switch.
5. The control device for remotely controlling zoom focusing of a camera according to claim 1, characterized in that: the device also comprises a focusing motor driving module (12) electrically connected with the MCU central processing unit (11); a focusing speed regulation control module (121), a focusing position feedback module (122) and a focusing forward and reverse limiting module (123) which are respectively electrically connected with the focusing motor driving module (12);
the focusing speed regulation control module (121) is used for controlling the rotating speed of the focusing motor;
the focusing position feedback module (122) is used for detecting the real-time position of the focusing lens;
and the focusing forward and reverse limiting module (123) is used for limiting the rotatable maximum angle and the rotatable minimum angle of the focusing motor.
6. The control device for remotely controlling zoom focusing of a camera according to claim 5, characterized in that: the focusing motor driving module (12) adopts an A4950 chip; the focusing speed regulation control module (121) adopts PWM of the MCU central processing unit (11); the focusing position feedback module (122) adopts an ADC conversion value of a multi-turn potentiometer; the focusing forward and reverse limiting module (123) adopts a micro-contact switch.
7. The control device for remotely controlling zoom focusing of a camera according to claim 1, characterized in that: the device also comprises a switching motor driving module (13) electrically connected with the MCU central processing unit (11); a switching speed regulation control module (132) and a switching forward and reverse limiting module (131) which are respectively electrically connected with the switching motor driving module (13);
the switching speed regulation control module (132) is used for controlling the rotating speed of the switching motor;
and the switching forward and reverse limiting module (131) is used for limiting the rotatable maximum angle and the rotatable minimum angle of the switching motor.
8. The control device for remotely controlling zoom focusing of a camera according to claim 7, wherein: the switching motor driving module (13) adopts an A4950 chip; the switching speed regulation control module (132) adopts PWM of the MCU central processing unit (11); the switching forward and reverse limiting module (131) adopts a micro-contact switch.
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| CN202120617428.6U CN214338025U (en) | 2021-03-26 | 2021-03-26 | Control device for remotely controlling zoom and focus of camera |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115291456A (en) * | 2022-09-28 | 2022-11-04 | 中国科学院深海科学与工程研究所 | Deep sea camera lens control device and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115291456A (en) * | 2022-09-28 | 2022-11-04 | 中国科学院深海科学与工程研究所 | Deep sea camera lens control device and control method thereof |
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