WO2016054825A1

WO2016054825A1 - Rotary photographing device and system

Info

Publication number: WO2016054825A1
Application number: PCT/CN2014/088422
Authority: WO
Inventors: 胡笑平
Original assignee: 博立多媒体控股有限公司; 胡笑平
Priority date: 2014-10-11
Filing date: 2014-10-11
Publication date: 2016-04-14

Abstract

A rotary photographing system, comprising a rotary photographing device therein, the rotary photographing device comprising a photographing unit (110), a rotary drive unit (120) and a control unit (130). The rotary drive unit employs a polyhedral ultrasonic motor comprising a stator (1201), a rotor (1202) and piezoelectric materials (1203). The stator and the rotor are nested, and a polyhedron is formed by the external surface or internal surface of one of the stator and the rotor for the attachment of the piezoelectric materials. The photographing unit is fixed on the rotor, and an optical axis of the photographing unit is at an angle with a rotating shaft of the rotor. The rotary photographing device of the present invention combines the polyhedral ultrasonic motor with the whole structure of the photographing unit so as to realize rotary control of the photographing unit with a simple structure, thus having low power consumption.

Description

Rotating camera and system

Technical field

The present invention relates to the field of image monitoring technologies, and in particular, to a rotating camera device and system.

Background technique

With the popularization and popularization of digital imaging technology, optical imaging devices are widely used in various scenarios to achieve real-time or non-real-time image monitoring. For example, an underwater surveillance camera for fishing, an in-vehicle recorder for vehicle travel monitoring or security, a camera for indoor security, and the like.

In these monitoring applications, in order to cover the camera's shooting range with a large angle, it is usually necessary to use a wide-angle lens, which makes the captured image more severely deformed and the resolution is reduced. In order to improve the image quality, there is also a use of a pan-tilt to mount the camera, and to control the rotation of the gimbal to obtain a dead-end coverage. However, the implementation technology of the gimbal is not only costly but also consumes a large amount of power, which is necessary for such things as fishing and on-board. For battery-powered applications, it is a defect that affects use.

In addition, in the case of using a gimbal, it is generally necessary to perform image analysis on the image captured by the camera, and thereby control the rotation of the gimbal, thereby realizing automatic tracking of the target, which requires keeping the camera open for a long time, further increasing The power consumption.

Summary of the invention

According to the present invention, a rotary imaging system is provided, wherein the rotary imaging device comprises an imaging unit, a rotary drive unit and a control unit. The camera unit is used to capture images. The control unit is used to control the operation of the camera unit and the rotary drive unit. The rotary drive unit uses a polyhedral ultrasonic motor including a stator, a rotor and a piezoelectric material; one of the stator and the rotor is a hollow cylinder, and is sleeved outside the other, at least on the outer surface of one of the outer ones The shape of one segment is a polyhedron; or the stator and the rotor are both hollow cylinders, one of which is sleeved outside the other, and is disposed on the outer surface of one of the outer surfaces or at least one section of the inner surface of one of the inner portions The shape is a polyhedron; the piezoelectric material is attached to each side of the polyhedron, at least one section of the rotor is located outside the stator, the camera unit is fixed on the section of the rotor outside the stator, and the optical axis of the camera unit is integrated with the rotation axis of the rotor Angle.

Preferably, the rotary imaging system according to the present invention may further comprise detection means. The detecting device comprises at least one detecting unit for detecting the distance of the object within the detection range and/or the moving object appearing within the detection range to generate a corresponding detection signal; the detection range of the detecting device is larger than the shooting range of the imaging unit, and the control The unit for controlling the image pickup unit and the rotation drive unit may specifically be control realized according to the detection signal, for example, controlling rotation of the image pickup unit according to the detection signal, turning the image pickup unit on and off, and the like.

According to the rotary imaging system of the present invention, the polyhedral ultrasonic motor, which is often used as a lens zoom drive motor, is designed as a drive mechanism combined with the overall structure of the image pickup unit, and the rotation control of the image pickup unit can be realized with a simple configuration, which can simultaneously satisfy the large Shooting range and high quality image requirements. In the case where the detecting means is further employed, it is also possible to adjust the monitoring angle of the camera by using a low power consumption motion or distance detecting means, so that the image capturing unit can be in a sleep state most of the time, reducing the amount of data and/or power consumption.

Specific examples in accordance with the present invention will be described in detail below with reference to the accompanying drawings.

DRAWINGS

1 is a schematic structural view of a rotary imaging apparatus in a rotary imaging system according to the present invention;

2 is a schematic structural view of a rotary camera system according to the present invention;

3 is a schematic structural view of a rotary imaging system of Embodiment 1;

4 is a schematic structural view of a rotary imaging system of Embodiment 2;

Figure 5 is a schematic view showing a mounting position of the image pickup unit in Embodiment 2;

FIG. 6 is a schematic diagram of an imaging screen of the imaging unit of FIG. 5. FIG.

detailed description

A basic structure of a rotary imaging apparatus in a rotary imaging system according to the present invention can be referred to FIG. 1, including an imaging unit 110, a rotary driving unit 120, and a control unit 130.

The camera unit is used to capture images. In general, the camera unit includes a lens 1101 and a sensor chip 1102, wherein the lens is used for imaging on a photosensitive chip for collecting and generating image data. The lens and sensor chip are typically mounted on a circuit board 1103 and connected to the circuit board of the control unit via a connection line 1104 (for power and signal transmission). The camera unit can be selected from a variety of different types. For example, having different types of photosensitive chips, such as CCD or CMOS, etc.; sensing different spectral ranges, such as infrared or visible light, etc.; having different lens structures, such as fixed focus or adjustable focus. In certain preferred embodiments, the camera unit can have various advantageous characteristics to provide a superior performance of the rotary imaging device. For example, the lens of the camera unit can adopt a zoom lens with an adjustable focal length and an autofocus lens, which can effectively increase the shooting range and improve the quality of imaging; further preferably, the focus focal length adjustment of the lens focal length and the zoom focal length adjustment can be performed by an ultrasonic motor. For details, refer to the PCT International Application No. WO2007118418 and the Chinese Patent Publication No. CN102590979A.

The rotary drive unit employs a polyhedral ultrasonic motor including a stator 1201, a rotor 1202 and a piezoelectric material 1203, each of which is bonded or welded with a metal wire (not shown) for transmitting an electrical signal for exciting the piezoelectric material. These piezoelectric materials are capable of vibrating the attached stator or mover to generate a traveling wave under the excitation of an electrical signal, thereby driving the mover rotation by a fit between the stator and the mover (for example, a threaded fit or a circumferential friction fit). The stator for attaching the piezoelectric material can generally be made of a metal material such as copper or aluminum, and the rotor driven by the thread or the circumferential surface can be made of any material such as plastic or metal.

1 shows an alternative configuration of a polyhedral ultrasonic motor. The stator is hollow cylindrical and sleeved outside the rotor. At least one section of the outer surface of the stator is a polyhedron, and the piezoelectric material is attached to each of the polyhedrons. On one side. The above structure may be reversed, that is, the rotor has a hollow cylindrical shape and is sleeved outside the stator, and the piezoelectric material is attached to the polyhedron formed on the outer surface of the rotor.

As another optional structural form, the stator and the rotor are both hollow cylindrical, one of which is sleeved outside the other, and is disposed on the outer surface of one of the outer surfaces or the inner surface of one of the inner portions. At least one of the shapes is a polyhedron, and the piezoelectric material may be attached to the outer surface of the outer layer or the polyhedron formed by the inner surface of the inner layer.

At least one section of the rotor is located outside the stator, the camera unit is fixed on the section of the rotor outside the stator, and the optical axis AA of the camera unit is at an angle to the axis of rotation BB of the rotor. Based on the above structure, the optical axis of the image pickup unit can be rotated with the rotation of the rotor, so that the image pickup unit can monitor a larger range. Preferably, the optical axis of the camera unit may be substantially perpendicular to the axis of rotation of the rotor, which may result in the camera unit having a maximum range of motion. Of course, based on the needs of the application, the camera unit can also be fixed to the rotor at a certain angle of inclination so that it is always in a certain range of interest when it is rotated.

The control unit is used to control the operation of the camera unit and the rotary drive unit. The control unit may include a logic processing device that implements a control function and its peripheral circuits, and controls the image pickup unit and the rotation driving unit by executing an instruction. Those skilled in the art are familiar with how to configure software and hardware to implement the general control functions required for rotating the camera device, for example, controlling image acquisition and data transmission of the sensor chip, controlling the rotation of the ultrasonic motor, and controlling the power module to supply power to the required components. The camera unit is turned on and off, the angle of the rotary drive unit is adjusted, and the camera transpose operation mode is changed. The devices and lines constituting the control unit can be centrally arranged at the same physical location, for example, on an integrated circuit board, or can be dispersed in different positions of the device, and can be completely controlled by a single processor, or can be processed by multiple processors. The controller cooperates to complete the control function. Furthermore, with the further addition of peripheral components, the control unit can correspondingly increase the matching control and overall coordination functions.

As a preferred embodiment, more than two imaging units may be included in the rotary imaging device, which are fixed in different directions around the rotor. The plurality of camera units may be evenly distributed. For example, two camera units are respectively fixed in two opposite directions of the rotor, or six camera units are arranged at intervals of 60 degrees; or according to an application scenario. The need to centrally distribute multiple camera units within a certain range, using multiple camera units enables simultaneous monitoring of a larger range. Each camera unit may be of the same or different type, and the types referred to include pixels, field of view, focus mode, sensing spectrum range, and the like. For example, a camera unit can be set as the main camera, and it has a higher performance configuration, for example, high resolution and excellent focus adjustment capability, while other camera units are used as auxiliary cameras, and the configuration is relatively low. . Of course, multiple cameras with the same performance can also be used.

As a preferred embodiment, the rotary imaging device may further comprise an auxiliary illumination unit for emitting visible light and/or infrared light, and the auxiliary illumination unit is configured to illuminate the imaging area of the imaging unit under the control of the control unit.

As a preferred embodiment, a movable infrared filter is further disposed between the lens of the at least one imaging unit and the photosensitive chip, and is movable in a direction perpendicular to the optical axis, so that when the light is suitable, The camera unit can also be used to capture color images to extend the applicable scene. For example, when the daytime or when the light intensity is sufficient (the control unit can judge by the photometric element), the infrared filter is controlled to be placed between the photosensitive chip and the lens, and the image capturing unit is in the color working mode to obtain and output a color image; In the evening or when the light intensity is insufficient, the infrared filter is controlled to move away from the optical path of the lens, and the camera unit is in the infrared working mode to obtain and output a black and white image.

As a preferred embodiment, the rotary imaging device may further include a Hall magnetic ring and a Hall sensing device, one of the Hall magnetic ring and the Hall sensing device is fixed to the rotor, and the other is fixed to the stator, and the Hall sensing device The measurement signal is output to the control unit, and the measurement signal is used to indicate the rotation angle of the Hall magnetic ring with respect to the Hall sensing device, so that the control unit can accurately control the rotation angle of the rotor.

A preferred structure of the rotary camera system according to the present invention can be referred to FIG. 2, including the detecting device 200 and the rotating camera device 300.

The detecting device comprises at least one detecting unit 210 for detecting the distance of the object within the detection range and/or the moving object that appears, generating a corresponding detection signal, and the detection range of the detecting device is larger than the shooting range of the imaging unit. The type of detection unit used by the detection device may be configured according to the needs of the application scenario, for example, may be selected from an active sonar measurement unit, a radar ranging unit, a passive infrared (PIR) detection unit, and the like. Since these detecting units are generally low in cost and low in power consumption, a plurality of detecting units of the same or different types can be arranged to further expand the range of monitoring, for example, two or more detecting units arranged on the circumferential surface or the curved surface can be used, so that The detection range of the detection device is greater than 90 degrees.

The rotary imaging apparatus 300 includes an imaging unit 310, a rotation driving unit 320, and a control unit (located inside the structure, not shown), and its structural principle is similar to that of the rotating imaging apparatus shown in FIG. 1, except that a cylindrical rotor 3202 is employed. A structure disposed outside the cylindrical stator 3201, at least one section of the inner surface of the stator is a polyhedron, and a piezoelectric material (not shown) is attached to each of the faces of the polyhedron formed on the inner surface of the stator. Further, the rotary imaging apparatus 300 uses two oppositely mounted imaging units, and an auxiliary illumination unit 340 is also mounted on the stator. The control unit is configured to control the opening of the imaging unit according to the detection signal and control the rotation driving unit to rotate the imaging unit to a direction associated with the detection signal, for example, to a direction that is the same as or opposite to a direction in which the detection signal is generated. At the same time, the camera's monitoring angle is adjusted by using a low-power motion or distance detecting device, so that the camera unit can be in a sleep state for most of the time, reducing the amount of data and/or power consumption. In the case where a plurality of detection units generate a plurality of detection signals, the direction in which the signals are strongest can be selected as the basis for the judgment.

Figure 2 shows an alternative configuration of a rotary camera system in which the detection device is separated from the rotary camera for mounting to different fixed frames, in which case the flexibility of the separate mounting is based. The rotating camera system can be used in a variety of application scenarios, eliminating the need for the user to repeatedly purchase monitoring devices for each single application purpose. The detection signal can be transmitted to the control unit by wire or wirelessly. For example, the wireless communication module 410 performs transmission, and the wireless communication methods used include, but are not limited to, standard or dedicated communication methods such as 2G/GPRS/3G/4G, WiFi, Bluetooth, 2.4G, WiMax, and the like.

As another optional structural form, the detecting device and the rotating camera device of the rotating camera system can also be used for mounting on the same fixed frame, and the detection signals can also be transmitted to the control unit by wire or wirelessly. In this case, the detecting device and the rotating camera device can be in the same physical space, for example integrated, or can be isolated to adapt to certain special application environments. For example, the fixed frame may include an isolation structure for separating the detecting device and the rotating camera device into different physical spaces, and the isolation structure is at least partially transparent, so that the image capturing unit can perform image capturing through the isolation structure. A typical application scenario is underwater application. At this time, the isolation structure is a waterproof cover, the detecting device can be installed outside the waterproof cover, and the rotating camera device is installed inside the waterproof cover.

The detecting device and the rotating camera device may use the same or different power sources, and the power source may be selected from a battery and a solar power source. The battery may be a dry battery installed inside the device, a rechargeable battery, or the like, or a car battery connected to the power line. FIG. 2 shows the case of using solar power source 420.

As a preferred embodiment, the rotating camera system may further include a storage device 500, which may be integrated or separated from the rotating camera device, and the control unit is further configured to transmit the image captured by the camera unit by wire or wirelessly. Give the storage device. If the storage device is integrated with the rotating camera device, a pluggable flash memory, a hard disk memory, a magnetic memory memory, or the like can be used. If the separate structure shown in FIG. 2 is adopted, the storage device can be placed in a secure concealed position, and the image signal output by the rotating camera device is received by the wireless communication module 410, and the power supply is externally connected through the power line 510.

As a preferred embodiment, the detecting device may further include one or more primary detecting units 220, the primary detecting unit is mainly configured to detect the current state of the environment to generate a corresponding status signal, and the control unit may be based on the status signal. Adjust the working mode of the system. For example, in an in-vehicle application scenario, the primary detecting unit may be a vibration detecting unit, and after detecting the vibration, the control unit sets the working mode to the driving mode, in which the camera unit is turned on, and when no vibration is detected, Set the working mode to the parking mode, in which the camera unit is turned on only after the other detection units are triggered. For example, in an indoor application scenario, the primary detecting unit may be a photometric unit. When the light is sufficient, the control unit operates the imaging unit in a color mode, and in the case of insufficient light, it operates in black and white (infrared ) mode and enable auxiliary lighting.

As a preferred embodiment, the control unit may be further configured to control the rotating imaging device to be in a sleep state before acquiring the detection signal, and after the detection signal is acquired, the rotating imaging device is turned on according to the detection signal, and the mode may be referred to as The automatic monitoring mode helps to save energy and extend the life of the system. In this mode, the camera unit and the rotary drive unit with relatively high energy consumption are normally in a sleep state, and only the detection unit with relatively low energy consumption remains on, when the detection unit detects that a moving object appears, or the object distance reaches a certain level. The detection signal triggers the control unit, thereby waking up the camera unit to start recording and transmitting images, and further adjusting the camera unit to an appropriate shooting angle by the rotary drive unit.

As a preferred embodiment, the control unit may be further configured to: after acquiring the control signal sent by the user, turn on the rotating camera device, and perform operation control according to the user's control signal, for example, performing rotation and shooting operations according to user operations. The mode can be called manual monitoring mode, which facilitates the user's flexible operation. The user can send control signals to the control unit in a wired or wireless manner.

As a preferred embodiment, the rotary camera system may further include a speaker and/or a microphone 430, wherein the speaker may provide a prompt for monitoring status of the user, and the microphone may acquire a voice command of the user and transmit the voice command to the control unit, so as to facilitate Provide voice control for users.

The rotary camera system according to the present invention will be exemplified below by way of an embodiment in a specific application scenario.

Example 1

One embodiment of a rotary camera system in accordance with the present invention can be applied to FIG. 3, which is applied to underwater observation scenes, such as for fishing, and the wavy background in FIG. 3 represents water. The rotary imaging system of the present embodiment includes a detecting device 600 and a rotating camera device 700.

The detecting device 600 includes two detecting units 610, which may be passive infrared sensors or active sonar sensors. The rotary imaging device 700 basically adopts the structure as shown in FIG. 1, but preferably also includes an auxiliary illumination unit 740.

In this embodiment, the detecting device and the rotating imaging device are mounted on the same fixed frame, but in order to adapt to the underwater environment, they are separated from each other by a spherical transparent waterproof cover 630, and the detecting device is installed outside the waterproof cover, and the rotating imaging device is mounted on Inside the waterproof cover, the detection signal is transmitted to the control unit via the connection line 611. In other embodiments, the waterproof cover may also take other shapes such as a cylindrical shape.

In this embodiment, the waterproof cover adopts a two-stage waterproof structure, including a first waterproof plug 6301, a secondary waterproof cover 6302 and a secondary waterproof plug 6303. The advantage of a two-stage waterproof construction is that the depth of the dive can be greatly increased with a simple waterproof seal.

In order to keep the system floating and vertical in the water, a water duckweed 631 is placed on the upper portion of the waterproof cover, and a weight 632 is placed on the bottom of the waterproof cover.

In order to facilitate the user to observe the acquired image of the rotating camera system in real time, the system of the present embodiment preferably further includes a liquid crystal display (LCD) panel 750 connected to the control unit via a power supply and data line 760. For user's convenience, a control panel for inputting control commands can also be integrated on the display panel.

In this embodiment, solar power source 420 is preferably employed to power the entire system.

In underwater observation applications, the camera device is installed in the isolation structure for waterproofing, and the detected signal (such as sonar) is usually difficult to pass through the waterproof cover, so the detection device needs to be installed outside the isolation structure to form a separation between the two. Structure. In this application scenario, the user can manually control the rotation angle of the rotary driving unit according to the display of the display panel, or can be automatically controlled by the control unit according to the detection signal of the detection unit. If there are multiple detection signals, the user can select The strongest direction of the signal.

Since both the camera unit fixed to the rotor and the detecting unit fixed to the waterproof cover need to be connected to the control unit, the line on the control unit needs to be connected to one of them during the movement. For example, if the circuit board of the control unit is fixed relative to the rotor, the connection line of the detection unit needs to remain connected to it while the control unit is rotating. A variety of solutions can be used, for example, by providing an annular metal groove on the circuit board such that one end of the connection line is always in sliding contact with it to achieve dynamic electrical connection, or a suitable length of connection line is used and the rotation is controlled by the control unit. Angle and direction to avoid the distance between the connection points exceeding the length of the connection line.

The rotating camera system of the embodiment can be applied to different environments by simple modification, for example, the floating duckweed can be used as an outdoor monitoring system by changing to a mounting bracket; for example, the waterproof cover is removed, the detecting device and the auxiliary lighting unit are It can be used as an indoor monitoring system when it is fixed on the stator or building. When the actual product is formed, it can be adapted to a wide range of environments by simple assembly by arranging the above-described components into a detachable and combined connection structure, preventing the user from repeatedly purchasing the monitoring device for various single or occasional needs.

Example 2

Another embodiment of the rotary camera system according to the present invention can be referred to FIG. 4, which is applied to an in-vehicle scene, for example, as a driving recorder. The rotary imaging system of the present embodiment basically adopts the structure shown in FIG. 2, and includes a detecting device 200, a rotating imaging device 300, and a storage device 500. The three devices are respectively installed at different positions of different fixed frames, and are connected by the wireless communication module 410.

The main body of the detecting device 200 (the portion where the detecting unit 210 is provided) is attached to the outside of the roof near the front window, and the primary detecting unit 220 (vibration detecting unit) is attached to the outside of the roof near the rear window. The rotary imaging device 300 is mounted in the vehicle by a fixing bracket 350. The storage device 500 is installed in a safe position in the vehicle, such as a spare tire storage room located in the trunk, and the concealed installation position can enhance the security of the monitoring data and reduce the risk of the storage device being stolen or destroyed together with the camera device.

Each module in this embodiment adopts a separate power supply mode, wherein the detecting device 200 is powered by the solar power source 420 located at the roof of the vehicle, and the rotating camera device 300 is powered by the solar power source 420 located at the upper portion of the front window of the vehicle, and the storage device 500 is driven by the slave device. The car's power supply is supplied from the headlights 810 (or other parts). This makes the power supply lines of the various devices do not need to be plugged and unplugged frequently, and the wiring can be limited to the local position of the roof as much as possible, which does not affect the use of other devices of the vehicle or the cleanliness of the interior of the vehicle. As a preferred embodiment, the above three devices can be considered together in the design of the vehicle, so as to be integrated into the structure of the vehicle itself, so that the influence on the appearance of the vehicle is smaller. As a preferred embodiment, each of the above three devices is also provided with a rechargeable battery (for example, a lithium battery) so as to be able to remain in operation for a certain period of time during nighttime without solar energy.

In other embodiments, the three devices of detecting, imaging, and storing may also be installed together so that the power source can be shared, and the wireless connection between the two can also be changed to a wired connection.

The imaging system of the embodiment may preferably adopt a control mode in which the control unit determines whether it is in a driving state or a parking state according to a state signal of the primary detecting unit (whether or not there is vibration); and controls the camera unit to perform real-time recording in a driving state, or according to detection The detection signal of the unit is only turned on when the front or rear object is close to the vehicle; in the parking state, the camera (and the storage device) is turned on or off according to the detection signal of the detecting unit, so that the camera does not need to be photographed. When it is in a sleep state, it achieves the purpose of comprehensive monitoring and reducing energy consumption.

As a preferred mounting method, the rotary imaging device can be mounted inside the vehicle at a position opposite to the rear view mirror 820, which allows simultaneous monitoring of the front and rear of the vehicle by only one imaging unit. Referring to Fig. 5, one camera unit 310 is aligned with a rear view mirror, and a broken line in the figure indicates an angle of view of the image pickup unit. Referring to FIG. 6, the image captured by the camera unit will include two parts of the screen, one part is the picture CC in front of the vehicle, and the other part is the picture DD behind the vehicle presented by the rear view mirror, and the focus is adjusted by the camera unit. Part of the screen can get clear images, enabling single-camera dual-direction monitoring during driving. When parking, the vehicle's periphery can be monitored in all directions by rotating the camera unit using a rotary drive unit. If two camera units are installed on the camera, you can monitor the front, back, or left and right directions at the same time.

The above embodiments are intended to be illustrative of the principles and embodiments of the present invention. It is understood that the above embodiments are only intended to aid the understanding of the invention and are not to be construed as limiting. Variations to the above-described embodiments may be made in accordance with the teachings of the present invention.

Claims

A rotary camera system, comprising: a rotating camera device (300, 700),

The rotary imaging device includes at least one imaging unit (110, 310), a rotary driving unit (120, 320), and a control unit (130),

The camera unit is configured to collect images,

The control unit is configured to control the operations of the camera unit and the rotary drive unit,

The rotary drive unit uses a polyhedral ultrasonic motor including a stator (1201, 3201), a rotor (1202, 3202), and a piezoelectric material (1203).

One of the stator and the rotor is a hollow cylinder, and is sleeved outside the other, and at least one section of the outer surface of one of the outer sleeves is shaped as a polyhedron; or the stator and the rotor are hollow a tubular shape, one of which is sleeved outside the other, and at least one of the outer surface of one of the outer surfaces or the inner surface of one of the inner ones is a polyhedron.

The piezoelectric material is attached to each side of the polyhedron,

At least one section of the rotor is located outside the stator, the camera unit is fixed on the section of the rotor outside the stator, and an optical axis (AA) of the camera unit and a rotating shaft of the rotor (BB) ) into an angle.
The system of claim 1 further comprising detection means (200, 600), said detection means comprising at least one detection unit (210, 610) for distance and/or detection range of objects within the detection range The moving object that appears appears to detect and generate a corresponding detection signal;

The detection range of the detecting device is larger than the shooting range of the camera unit,

The operation of the control unit for controlling the camera unit and the rotary driving unit specifically includes:

Controlling, by the detection signal, the rotation driving unit to rotate the imaging unit to a direction associated with the detection signal; and/or,

Before the detection signal is acquired, controlling the rotating imaging device to be in a sleep state, and after acquiring the detection signal, turning on the rotating imaging device according to the detection signal; and/or,

After acquiring the control signal sent by the user, the rotating camera device is turned on, and the operation control is performed according to the control signal of the user.
The system according to claim 1, wherein said rotary imaging device comprises two or more imaging units (310) fixed in different directions around said rotor, each imaging unit being of the same or different type.
A system according to claim 1 or 2 or 3, wherein said rotary imaging device further comprises an auxiliary illumination unit (340, 740) for emitting visible light and/or infrared light, said auxiliary illumination unit being used in Under the control of the control unit, the imaging area of the imaging unit is illuminated.
The system according to claim 1 or 2 or 3, wherein said rotary imaging device further comprises a Hall magnetic ring and a Hall sensing device, and one of said Hall magnetic ring and Hall sensing device is fixed at said a rotor, the other being fixed relative to the stator, the Hall sensing device outputs a measurement signal to the control unit, the measurement signal being used to indicate a rotation angle of the Hall magnetic ring relative to the Hall sensing device .
The system according to claim 2, wherein said detecting means comprises two or more detecting units arranged on a circumferential surface or a curved surface, said detection means having a detection range of a coverage angle greater than 90 degrees, each detecting unit They are respectively selected from a sonar measuring unit, a radar ranging unit, and a passive infrared detecting unit.
The system according to claim 2, wherein said detecting means and said rotating camera are separated for mounting to different fixed frames, and said detecting signals are transmitted to said said by wire or wireless means control unit.
The system according to claim 2, wherein said detecting means and said rotating camera means are mounted on the same fixed frame, and said detection signal is transmitted to said control unit by wire or wirelessly.
The system of claim 8 wherein said fixed frame includes an isolation structure for separating said detecting means and said rotating camera means in different physical spaces, said isolating structure being at least partially transparent The image capturing unit is configured to perform image capturing through the isolation structure.
The system according to claim 9, wherein said isolation structure is a waterproof cover (630), said detecting means is mounted outside said waterproof cover, and said rotary imaging device is mounted inside said waterproof cover.
A system according to any one of claims 2 or 6 to 10, wherein said detecting means and said rotating camera means use the same or different power sources, said power source being selected from the group consisting of a battery and a solar power source (420).
A system according to any one of claims 2 or 6 to 10, further comprising a storage device (500) integrated with or separate from said rotary camera device, said control unit further And transmitting the image captured by the camera unit to the storage device by wire or wirelessly.
A system according to any one of claims 2 or 6 to 10, wherein said detecting means further comprises at least one primary detecting unit (220) for detecting the current state of the environment in which it is located, generating a corresponding status signal ,

The control unit is configured to adjust an operating mode of the system according to the status signal.