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WO2012142783A1 - 一种360度自动跟踪式狩猎相机及其工作方法 - Google Patents

一种360度自动跟踪式狩猎相机及其工作方法 Download PDF

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Publication number
WO2012142783A1
WO2012142783A1 PCT/CN2011/075644 CN2011075644W WO2012142783A1 WO 2012142783 A1 WO2012142783 A1 WO 2012142783A1 CN 2011075644 W CN2011075644 W CN 2011075644W WO 2012142783 A1 WO2012142783 A1 WO 2012142783A1
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WO
WIPO (PCT)
Prior art keywords
camera
processor
infrared
shooting
rotary motion
Prior art date
Application number
PCT/CN2011/075644
Other languages
English (en)
French (fr)
Inventor
夏登海
葛中柱
宋鑫
周立
Original Assignee
广州市晶华光学电子有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州市晶华光学电子有限公司 filed Critical 广州市晶华光学电子有限公司
Priority to US13/879,423 priority Critical patent/US20130194422A1/en
Priority to JP2013529533A priority patent/JP2013543142A/ja
Priority to EP11864005.1A priority patent/EP2610671A4/en
Publication of WO2012142783A1 publication Critical patent/WO2012142783A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/38—Releasing-devices separate from shutter
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/698—Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/188—Capturing isolated or intermittent images triggered by the occurrence of a predetermined event, e.g. an object reaching a predetermined position
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means

Definitions

  • the present invention relates to a camera apparatus, and more particularly to a 360-degree automatic tracking type hunting camera suitable for outdoor use and a working method thereof.
  • a conventional hunting camera is generally driven by a pan/tilt head to intermittently rotate in the circumferential direction to achieve 360-degree scanning.
  • the camera needs to continuously perform intermittent rotation and intermittent shooting. Many pictures taken are of no use value, and the utility life of the camera and the pan/tilt is greatly reduced, and the battery continues to stand by. time.
  • a hunting camera such as an automatic induction and photographing camera disclosed in Chinese Patent Publication No.
  • the authorization announcement date is April 6, 2011, which can sense moving objects through the target detection probe. Then start the optical lens to shoot.
  • the optical lens can be activated when the target detecting probe senses the animal, the range of the shooting is limited, and precise positioning cannot be achieved.
  • a 360-degree automatic tracking hunting camera comprising a processor, n infrared sensors, and a camera, a rotary motion mechanism and a power supply unit controlled by the processor, each infrared sensor Corresponding respectively to different input ports of the processor, wherein n is a natural number greater than or equal to 3; the rotary motion mechanism drives the camera to rotate clockwise or counterclockwise in one direction;
  • All infrared sensors are arranged in the circumferential direction, and the visible ranges of the infrared sensors are superimposed to cover 360 degrees on the horizontal plane, and each infrared sensor corresponds to a fixed photographing orientation, and the overlapping range of the visible range of the adjacent infrared sensors The area corresponds to a fixed shooting orientation, forming 2n fixed shooting orientations.
  • an electronic compass is also provided which rotates with the camera under the driving of the rotary motion mechanism, the camera is stationary with respect to the electronic compass, and the orientation signal output by the electronic compass is input into the processor to determine the camera.
  • the geographic location of the shot is also provided.
  • the camera is mounted in the forward direction of the x-axis in the ⁇ - ⁇ coordinate system of the electronic compass.
  • an infrared illumination unit is further disposed in communication with the processor, the infrared illumination unit includes a brightness detection sensor and an infrared illumination tube, and the processor drives the infrared illumination tube through the illumination tube driving circuit; the infrared illumination unit At least the infrared light-emitting tube rotates with the camera under the driving of the rotary motion mechanism.
  • the power supply unit of the power supply unit is provided with a switch tube controlled by the processor on the power supply circuit for supplying power to the rotary motion mechanism, the camera and the infrared illumination unit.
  • the rotary motion mechanism comprises a stepping motor
  • the processor drives the stepping motor to rotate by a motor driving circuit
  • the stepping motor drives the camera to rotate by the transmission mechanism.
  • Another object of the present invention is to provide a working method for the 360 degree automatic tracking type hunting camera described above.
  • the technical solution adopted by the present invention is as follows:
  • the working method of the above 360-degree automatic tracking type hunting camera is: After the power is turned on, the 360-degree automatic tracking type hunting camera enters a standby state, and in the standby state, the camera stops at one In a fixed standby orientation, at this time, the power supply unit supplies power to the processor and the infrared sensor; after the 360-degree automatic tracking type hunting camera enters the standby state, the following steps are completed:
  • Step S1 The processor scans each input port connected to the infrared sensor to detect whether there is a sensing signal input. If the sensing signal is detected, the process proceeds to step S2; if the sensing signal is not detected, the processor continues to scan;
  • Step S2 The processor U1 determines an effective shooting direction according to an input port that basically simultaneously generates a sensing signal, and the processor controls the power supply unit to supply power to the rotating motion mechanism and the camera;
  • Step S3 After the processor starts the rotary motion mechanism and the camera, the processor controls the rotary motion mechanism to drive the camera from the near to the farthest according to the difference between the rotation direction of the rotary motion mechanism and the standby orientation according to the effective shooting orientation. Effective shooting orientation for shooting;
  • Step S4 The processor controls the slewing mechanism to drive the camera to the standby position after the camera completes shooting in all effective shooting directions in one rotation motion, and the hunting camera enters the standby state.
  • the method for determining the effective shooting orientation in the step S2 is as follows:
  • the corresponding imaging directions of the infrared sensors outputting the sensing signals are all effective shooting directions.
  • the 360-degree automatic tracking type hunting camera is provided with an electronic compass that is stationary with respect to the camera and rotates with the camera.
  • the processor records the received position signal of the electronic compass when the camera is shooting. On the video or on the picture.
  • the 360-degree automatic tracking hunting camera is provided with an infrared illumination unit communicatively coupled to the processor, the infrared illumination unit comprising a brightness detection sensor and an infrared illumination tube, wherein at least the infrared illumination tube is in the rotary motion mechanism Drive with the camera to rotate together;
  • step S2 the processor controls the power supply unit to supply power to the rotary motion mechanism, the camera, and the infrared illumination unit.
  • the brightness detection sensor inputs the collected ambient brightness value to the processor and compares with the set brightness threshold. When the input ambient brightness value is lower than the brightness threshold, the processor will activate the infrared light pipe through the light pipe driving circuit when the camera moves to the effective shooting direction.
  • FIG. 1 is a schematic structural view of a 360-degree automatic tracking type hunting camera according to the present invention
  • Figure 2 shows an arrangement of the infrared sensor of Figure 1
  • FIG. 3 is a flow chart showing the operation of the hunting camera shown in Figure 1.
  • DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS As shown in FIG. 1, the 360-degree automatic tracking hunting camera of the present invention comprises a processor U1, a plurality of infrared sensors 2, and a camera, a rotary motion mechanism and a power supply unit 7 both controlled by the processor U1.
  • the sensing signals output by the infrared sensors 2 are input to the processor U1 for analysis processing, wherein the infrared sensors 2 respectively correspond to different input ports of the processor U1; the rotary motion mechanism can drive the camera along a Direction rotation, such as clockwise or counterclockwise rotation, when the 360 degree automatic tracking hunting camera of the present invention is in the standby state, the camera stops in a fixed standby orientation, that is, when the shooting is completed, the processor U1 will control the rotary motion mechanism. Drive the camera to reset to the standby orientation.
  • a Direction rotation such as clockwise or counterclockwise rotation
  • All the infrared sensors 2 are arranged in the circumferential direction, so that the visible ranges of the infrared sensors 2 are superimposed and covered 360 degrees on the horizontal surface, and each infrared sensor 2 corresponds to one shooting direction, and the visible range of the adjacent infrared sensors The overlapping area corresponds to one shooting direction. Therefore, if n infrared sensors are provided, 2n shooting directions are formed, wherein ⁇ is generally a natural number greater than or equal to 3.
  • each shooting orientation is a fixed position in the corresponding area. As shown in FIG.
  • the working method of the 360-degree automatic tracking hunting camera of the present invention is as follows: After the booting, the hunting camera enters a standby state, at this time, the power supply unit 7 supplies power to the processor U1 and the infrared sensor 2; Step S1: Hunting When the camera is in the standby state, the processor U1 cyclically scans the input ports connected to the infrared sensor 2 to detect whether there is a sensing signal input. If the sensing signal is detected, the process proceeds to step S2; if the sensing signal is not detected, the processor continues. Scanning;
  • Step S2 The processor U1 determines an effective photographing orientation according to an input port that basically simultaneously generates an inductive signal, where the effective photographing orientation is a photographing orientation that the camera needs to reach in one rotation motion, and the processor U1 controls the power supply unit 7 to rotate. Power supply and camera power supply;
  • Step S3 After the processor U1 starts the rotary motion mechanism and the camera, the processor U1 controls the rotary motion mechanism to drive the camera from near to far according to the difference of the orientation between the rotation direction of the rotary motion mechanism and the standby orientation according to the effective shooting orientation. Arriving at each effective shooting direction for shooting;
  • Step S4 The processor U1 controls the rotary motion mechanism to drive the camera to reset to the standby position after the camera completes shooting in all effective shooting directions in one rotation motion, and causes the hunting camera to enter the standby state.
  • step S3 specifically, the camera first moves to an effective shooting direction closest to the standby direction, and then moves to the next effective shooting direction closest to the effective shooting direction after shooting, until Complete the shooting of all valid shooting positions.
  • the processor U1 only needs to control the rotary motion mechanism to drive the camera to move to the effective shooting direction for shooting, and then reset to the standby orientation after the shooting is completed.
  • the above-mentioned simultaneous occurrence of the sensing signal that can occur in the processor U1 scanning all the input ports connected to the infrared sensor, because the period is extremely short, therefore, the sensing signals detected in several scanning periods can also be considered It is at the same time.
  • step S2 The method for determining the effective shooting orientation in step S2 is as follows:
  • the corresponding shooting direction of the infrared sensor 2 is the effective shooting orientation. If two adjacent infrared sensors 2 output the sensing signals substantially simultaneously, the corresponding imaging directions of the overlapping regions of the adjacent two infrared sensors 2 are effective shooting directions, and the two infrared sensors 2 are respectively The corresponding photographing orientation is not recognized as an effective photographing orientation, that is, in this case, it is considered that there is an effective photographing orientation.
  • infrared sensors 2 arranged in a regular hexagonal arrangement in the circumferential direction
  • the first to sixth infrared sensors 2 respectively correspond to the shooting directions S1, S3, and S5.
  • S7, S9 and S11 first and second, second and third, third and fourth, fourth and fifth, and fifth and sixth infrared sensors
  • the overlapping areas of the apparent range correspond to the shooting directions S2, S4, S6, S8 and S12, respectively.
  • the effective shooting orientation is considered to be S2 ; if the first, second, and third infrared sensors simultaneously output the sensing signals , the effective shooting directions are considered to be S2 and S4; if the first, second, and fourth infrared sensors simultaneously output the sensing signals, the effective shooting directions are considered to be S2 and S7.
  • an infrared sensor having a horizontal viewing angle of 70 degrees can be selected.
  • the corresponding imaging directions of the two infrared sensors 2 can also be regarded as effective shooting directions, that is, in this case, three are considered to exist. Effective shooting orientation, but after testing, the former can indicate an effective shooting orientation to achieve an effective picture. Therefore, there is no need to increase the effective shooting orientation by the latter method.
  • the hunting camera of the present invention is further provided with an electronic compass 8 as shown in FIG. 1.
  • the azimuth signal output by the electronic compass 8 is input into the processor U1, and the electronic compass 8 is rotated by the rotary motion mechanism in synchronization with the camera, and the camera is stationary with respect to the electronic compass 8. .
  • the electronic compass 8 of the present invention adopts an existing electronic compass, which is internally set with XY direction coordinates, and can obtain which angle of the current XY coordinate system of the electronic compass is based on the geomagnetic attraction, and the camera is at The position on the XY coordinate system is fixed, so that regardless of the angle at which the camera is rotated, or how the hunting camera is placed (ie, the orientation is arbitrary in the circumferential direction), the processor U1 can obtain the orientation that the camera faces at any time.
  • the camera is mounted in the forward direction of the Y-axis.
  • Processor U1 will process the azimuth signal and display the specific orientation of the camera on the captured picture or video.
  • the power supply unit always supplies power to the electronic compass 8.
  • an infrared illumination unit 3 as shown in FIG. 1 communicatively coupled to the processor U1, the infrared illumination unit 3 including a brightness detection sensor 303 and an infrared illumination tube.
  • the processor U1 controls the power supply unit to supply power to the rotary motion mechanism, the camera and the infrared illumination unit 3
  • the brightness detection is performed.
  • the sensor 303 inputs the collected ambient brightness value to the processor U1 for comparison with the set brightness threshold.
  • the processor U1 When the input ambient brightness value is lower than the brightness threshold, the processor U1 will pass the light when the camera moves to the effective shooting direction.
  • the tube driving circuit 301 activates the infrared light emitting tube 302.
  • the infrared illumination unit 3 is at least an infrared illumination tube 302 that rotates with the camera under the driving of the rotary motion mechanism.
  • the slewing mechanism includes a stepping motor 102.
  • the processor U1 drives the boring motor 102 to rotate through the motor driving circuit 101.
  • the stepping motor 102 can drive the camera, the electronic compass 8 and the infrared illuminating tube 302 through a transmission mechanism.
  • the transmission mechanism may be a gear transmission mechanism, that is, a driving gear is mounted on the output shaft of the stepping motor 102, and a turntable and an active tooth for mounting the camera, the electronic compass 8 and the infrared light emitting tube 302 are mounted.
  • the wheel-engaged driven gear is mounted on the same shaft.
  • the processor U1 determines the stepping number of the stepping motor 102 according to the difference in orientation between the standby orientation and the effective shooting orientation closest thereto, or the azimuth difference between adjacent effective shooting directions, and the transmission ratio of the transmission mechanism.
  • the camera or the like is rotated to the desired effective shooting direction or standby orientation.
  • the shooting camera of the present invention outputs an inductive signal from the infrared sensor to the camera, and it takes about 1 second to start photographing. Therefore, the transmission mechanism and the stepping motor are selected to rotate the camera from the standby position by approximately 360 degrees in one second. , to the effective shooting direction that may appear farthest from the standby position.
  • the power supply unit 7 includes a power management unit 701, a switch tube 703, and a battery 702.
  • the power management unit 701 manages charging and discharging of the battery 702.
  • the battery 702 always supplies power to the processor U1 and the infrared sensor 2, and the battery 702 to the slewing drive circuit and the camera.
  • the switch tube 703 controlled by the processor U1 is disposed in a power supply circuit of the infrared illumination unit.
  • the hunting camera of the present invention may further include a display screen 10 and an SD card holder 11 communicatively coupled to the processor U1.
  • the hunting camera can also set a button for setting a function parameter, and a signal triggered by the button 9 is input to the processor U1 for processing.
  • the hunting camera may further be provided with an audio processing unit including a microphone 5 that converts the sound signal into an electrical signal input to the processor U1 for processing, and a speaker 12 that converts the electrical signal output by the processor U1 into a sound signal output.
  • the processor U1 drives the horn 12 through the power amplifier circuit 13.
  • the hunting camera of the present invention also has a storage unit communicatively coupled to the processor U1, the storage unit including FLASH6 and DDR (Double Rate Synchronous Dynamic Random Access Memory) 7.
  • the storage unit including FLASH6 and DDR (Double Rate Synchronous Dynamic Random Access Memory) 7.
  • the hunting camera of the present invention can be set to capture a video state, can also be set to take a picture state, and can set the length of time for shooting or the number of pictures, and the like.
  • the captured video or picture is stored on the SD card.
  • the time is also recorded. In this way, when the user views the video or the picture, not only can the time of shooting be known, but also the orientation of the prey from the camera.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)
  • Accessories Of Cameras (AREA)
  • Closed-Circuit Television Systems (AREA)

Description

一种 360度自动跟踪式狩猎相机及其工作方法 技术领域 本发明涉及摄像器材,特别涉及一种适合于户外使用的 360度自动跟踪式狩猎相机及 其工作方法。 背景技术 现有的狩猎相机一般是由云台带动摄像头在周向上间歇式旋转， 实现 360度扫描拍 摄。对于该种狩猎相机， 摄像头要不停的进行间歇式旋转和间歇式拍摄， 拍摄的很多画面 均是不具有使用价值的，也大大降低了摄像头和云台的使用寿命实用， 以及电池的持续待 机时间。 还有一种狩猎相机， 如授权公告号为 CN 201789556 U、 授权公告日为 2011年 4 月 6的中国专利公开的一种可自动感应和拍照的相机，其可通过目标侦测探头感应运动物 体，然后启动光学镜头进行拍摄。对于该种狩猎相机， 虽然可以在目标侦测探头感应到运 动物体时启动光学镜头进行拍摄， 但是可拍摄的范围有限， 而且也无法实现精确定位。 发明内容 本发明的一个目的是提供一种可跟踪猎物实现 360度拍摄的结构简单的狩猎相机。 本发明采用的技术方案为： 一种 360度自动跟踪式狩猎相机， 包括处理器， n个红外 感应器， 以及， 均受控于处理器的摄像头、 回转运动机构和供电单元， 各红外感应器分别 与处理器的不同的输入端口相对应， 其中， n为大于等于 3的自然数； 所述回转运动机构 带动摄像头沿一个方向顺时针或者逆时针转动；
所有红外感应器在周向上排列设置，各红外感应器的可视范围叠加起来在水平面上覆 盖 360度，每个红外感应器对应一个固定的拍摄方位，相邻红外感应器的可视范围的重叠 区域对应一个固定的拍摄方位， 形成 2η个固定的拍摄方位。
优选地，还设置有在所述回转运动机构的带动下随摄像头同歩转动的电子指南针，所 述摄像头相对电子指南针静止，所述电子指南针输出的方位信号输入至处理器中， 以确定 摄像头进行拍摄的地理方位。
优选地， 所述摄像头沿着电子指南针的 Χ-Υ坐标系中的 Υ轴的正向安装。 优选地，还设置有与处理器通讯连接的红外照明单元，所述红外照明单元包括亮度侦 测传感器和红外发光管，所述处理器通过发光管驱动电路驱动红外发光管；所述红外照明 单元中至少红外发光管在回转运动机构的带动下随摄像头一起转动。
优选地，所述供电单元的通过电池为回转运动机构、摄像头和红外照明单元供电的供 电回路上设置有受控于处理器的开关管。
优选地，所述回转运动机构包括步进马达，处理器通过马达驱动电路驱动步进马达转 动， 所述步进马达通过传动机构带动摄像头转动。
本发明的另一个目的是针对上述 360度自动跟踪式狩猎相机提供一种工作方法。 本发明采用的技术方案为： 上述 360度自动跟踪式狩猎相机的工作方法为： 开机后， 所述 360度自动跟踪式狩猎相机进入待机状态，在所述待机状态下，所述摄像头停止在一 个固定的待机方位上，此时， 供电单元为处理器和红外感应器供电； 所述 360度自动跟踪 式狩猎相机进入待机状态后， 完成以下步骤：
步骤 S1 : 处理器扫描连接红外感应器的各输入端口， 检测是否有感应信号输入， 若 检测到感应信号， 则进入步骤 S2; 若未检测到感应信号， 则处理器继续进行扫描；
步骤 S2: 处理器 U1根据基本同时出现感应信号的输入端口确定有效拍摄方位， 并 且， 处理器控制供电单元为回转运动机构和摄像头供电；
歩骤 S3: 处理器启动回转运动机构和摄像头后， 处理器根据各有效拍摄方位在回转 运动机构的转动方向上与待机方位的方位差，控制回转运动机构带动摄像头由近至远顺次 到达各有效拍摄方位进行拍摄；
步骤 S4: 处理器在摄像头完成一次回转运动中的所有有效拍摄方位上的拍摄后控制 回转运动机构带动摄像头复位至待机方位上， 并使狩猎相机进入待机状态。
优选地， 所述步骤 S2中确定有效拍摄方位的方法如下：
( 1 ) 若相邻二个红外感应器基本同时输出感应信号， 则相邻二个红外感应器的可视 范围的重叠区域对应的拍摄方位为有效拍摄方位，而相邻二个红外感应器各自对应的拍摄 方位为非有效拍摄方位；
(2)若非相邻红外感应器同时输出感应信号， 则输出感应信号的红外传感器各自对 应的拍摄方位均为有效拍摄方位。
优选地， 所述 360度自动跟踪式狩猎相机设置有相对摄像头静止， 随摄像头同歩转动 的电子指南针，所述处理器在摄像头进行拍摄时将接收到的电子指南针输出的方位信号记 录于所拍摄的视频或者图片上。 优选地， 所述 360度自动跟踪式狩猎相机设置有与处理器通讯连接的红外照明单元， 所述红外照明单元包括亮度侦测传感器和红外发光管，其中，至少红外发光管在回转运动 机构的带动下随摄像头一起转动；
在步骤 S2中， 处理器控制供电单元为回转运动机构、 摄像头和红外照明单元供电， 供电后， 亮度侦测传感器将采集到的环境亮度值输入至处理器与设定的亮度阈值进行比 较，当输入的环境亮度值低于亮度阈值时，该处理器在摄像头运动至有效拍摄方位时将通 过发光管驱动电路启动红外发光管。
本发明的有益效果为：本发明的狩猎相机可以 360度捕捉移动目标，而且拍摄方位的 设置和形成的有效拍摄方位有利于简化控制方法和延长电池的使用时间；通过设置电子指 南针可以提供准确的地理方位，因此，在狩猎相机任意摆放的情况下也可以获知拍摄时的 具体地理方位。 附图说明 图 1为本发明所述 360度自动跟踪式狩猎相机的结构示意图；
图 2示出了图 1中红外感应器的一种排布方式；
图 3为图 1所示狩猎相机的工作流程图。 具体实施方式 如图 1所示， 本发明的 360度自动跟踪式狩猎相机包括处理器 Ul， 多个红外感应器 2， 以及， 均受控于处理器 U1 的摄像头、 回转运动机构和供电单元 7， 各红外感应器 2 输出的感应信号输入至处理器 U1中进行分析处理， 其中， 各红外感应器 2分别与处理器 U1的不同的输入端口相对应； 所述回转运动机构可带动摄像头沿一个方向转动， 如顺时 针或者逆时针转动，在本发明的 360度自动跟踪式狩猎相机处于待机状态时，摄像头停止 在一个固定的待机方位上， 即拍摄完成时， 处理器 U1将控制回转运动机构带动摄像头复 位至该待机方位上。所有红外感应器 2在周向上排列设置，使各红外感应器 2的可视范围 叠加起来在水平面上覆盖 360度，每个红外感应器 2对应一个拍摄方位，相邻红外感应器 的可视范围的重叠区域对应一个拍摄方位， 因此， 若设置 n个红外感应器， 则形成 2η个 拍摄方位， 其中， η—般为大于等于 3的自然数。 在此， 每个拍摄方位均是相应区域内的 一个固定的位置。 如图 3所示， 本发明的 360度自动跟踪式狩猎相机的工作方法如下： 开机后狩猎相机进入待机状态，此时，供电单元 7为处理器 U1和红外感应器 2供电； 步骤 S1 : 狩猎相机处于待机状态时， 处理器 U1循环扫描连接红外感应器 2的各输 入端口， 检测是否有感应信号输入， 若检测到感应信号， 则进入步骤 S2; 若未检测到感 应信号， 则处理器继续进行扫描；
步骤 S2: 处理器 U1根据基本同时出现感应信号的输入端口确定有效拍摄方位， 该 有效拍摄方位即为摄像头在一次回转运动中所需到达的拍摄方位， 并且， 处理器 U1控制 供电单元 7为回转运动机构和摄像头供电；
歩骤 S3: 处理器 U1启动回转运动机构和摄像头后， 处理器 U1根据各有效拍摄方位 在回转运动机构的转动方向上与待机方位的方位差，控制回转运动机构带动摄像头由近至 远顺次到达各有效拍摄方位进行拍摄；
步骤 S4: 处理器 U1在摄像头完成一次回转运动中的所有有效拍摄方位上的拍摄后 控制回转运动机构带动摄像头复位至待机方位上， 并使狩猎相机进入待机状态。
如图 3所示， 对于步骤 S3， 具体为摄像头先运动至距离待机方位最近的有效拍摄方 位上进行拍摄， 拍摄完后再运动至与该有效拍摄方位最近的下一有效拍摄方位进行拍摄， 直至完成所有有效拍摄方位的拍摄为止。
通常情况下， 只会同时出现一个有效拍摄方位， 因此， 处理器 U1只需控制回转运动 机构带动摄像头运动至该有效拍摄方位上进行拍摄， 完成拍摄后即可复位至待机方位上。 另外，上述同时出现可以为处理器 U1扫描完所有连接红外传感器的输入端口的一个周期 内出现的感应信号， 由于该周期极短， 因此， 也可将几个扫描周期内检测到的感应信号认 为是同时出现。
步骤 S2中有效拍摄方位的确定方法如下：
若同一时间仅有一个红外感应器 2感应到物体的移动而输出感应信号至处理器 Ul， 则该红外传感器 2对应的拍摄方位即为有效拍摄方位。若相邻二个红外感应器 2基本同时 输出感应信号，则相邻二个红外感应器 2的可视范围的重叠区域对应的拍摄方位即为有效 拍摄方位，而该二个红外感应器 2各自对应的拍摄方位不被认定为有效拍摄方位， 即在该 种情况下认为存在一个有效拍摄方位。
如图 2所示，在本实施例中，设置六个在周向上呈正六边形排列设置的红外感应器 2, 第一个至第六个红外感应器 2分别对应拍摄方位 Sl、 S3、 S5、 S7、 S9和 Sll， 第一和第 二个， 第二和第三个， 第三和第四个， 第四和第五个， 以及第五和第六个红外感应器的可 视范围的重叠区域分别对应拍摄方位 S2、 S4、 S6、 S8和 S12。 根据上述确定有效拍摄方 位的方法可知， 若第一和第二个红外感应器同时输出感应信号， 则认为有效拍摄方位为 S2; 若第一、 第二和第三个红外感应器同时输出感应信号， 则认为有效拍摄方位为 S2和 S4;若第一、第二和第四红外感应器同时输出感应信号，则认为有效拍摄方位为 S2和 S7。 在本实施例中， 可以选择水平视角为 70度的红外感应器。
当然，在相邻二个红外感应器 2基本同时输出感应信号的情况下，也可将该二个红外 感应器 2各自对应的拍摄方位认定为有效拍摄方位，即在该种情况下认为存在三个有效拍 摄方位，但经过测试，前者说明的一个有效拍摄方位即可达到获得有效画面的目的，因此， 无需通过后者的方法增加有效拍摄方位。
本发明的狩猎相机还配置有如图 1所示的电子指南针 8， 电子指南针 8输出的方位信 号输入至处理器 U1中， 电子指南针 8由回转运动机构带动与摄像头同步转动， 摄像头相 对电子指南针 8静止。 本发明中的电子指南针 8采用现有的电子指南针， 其内部设定有 X-Y方向坐标， 并可以根据地磁引力得到目前的正北方是处在电子指南针的 X-Y坐标系 的哪个角度上， 而摄像头在 X-Y坐标系上的位置固定， 这样无论摄像头转动到什么角度， 还是狩猎相机如何摆放 （即摆放方位在周向上任意）， 处理器 U1均可得到摄像头在任何 时候所面对的方位。在本实施例中， 该摄像头沿着 Y轴的正向安装。处理器 U1在接收到 方位信号后将对其进行处理， 并将摄像头所处的具体方位显示在所拍摄的图片或者视频 上。 供电单元始终为电子指南针 8供电。
另外， 为了使本发明的狩猎相机适应夜间拍摄， 其还设置有与处理器 U1通讯连接的 如图 1所示的红外照明单元 3，该红外照明单元 3包括亮度侦测传感器 303和红外发光管 302, 当供电单元为红外照明单元 3供电后（若设置红外照明单元 3， 则在步骤 S2中， 处 理器 U1控制供电单元 Ί为回转运动机构、 摄像头和红外照明单元 3供电）， 亮度侦测传 感器 303将采集到的环境亮度值输入至处理器 U1与设定的亮度阈值进行比较， 当输入的 环境亮度值低于亮度阈值时，该处理器 U1在摄像头运动至有效拍摄方位时将通过发光管 驱动电路 301启动红外发光管 302。该红外照明单元 3至少是红外发光管 302在回转运动 机构的带动下随摄像头一起转动。
在本实施中， 该回转运动机构包括步进马达 102， 处理器 U1通过马达驱动电路 101 驱动歩进马达 102转动，步进马达 102可通过传动机构带动摄像头、电子指南针 8和红外 发光管 302—起转动规定的角度，该传动机构可以为齿轮传动机构， 即步进马达 102的输 出轴上安装有主动齿轮，安装摄像头、电子指南针 8和红外发光管 302的转盘和与主动齿 轮啮合的从动齿轮安装与同一转轴上。在此， 处理器 U1根据待机方位和与之最近的有效 拍摄方位间的方位差，或者相邻有效拍摄方位间的方位差， 以及传动机构的传动比确定步 进马达 102的步进数，使摄像头等转动至所需的有效拍摄方位或者待机方位上。另外， 本 发明的拍摄相机从红外感应器输出感应信号至摄像头可以开始拍照大约需要 1秒， 因此， 该传动机构和步进马达的选择要满足在 1秒内使摄像头从待机方位转动接近 360度，到达 可能出现的距离待机方位最远的有效拍摄方位上。
该供电单元 7包括电源管理单元 701、 开关管 703和电池 702， 电源管理单元 701管 理电池 702的充放电， 电池 702始终为处理器 U1和红外感应器 2供电， 电池 702至回转 驱动电路、 摄像头和红外照明单元的供电电路中设置该受控于处理器 U1的开关管 703。
如图 1所示，本发明的狩猎相机还可以包括与处理器 U1通讯连接的显示屏 10和 SD 卡座 11。该狩猎相机还可以设置用于设置功能参数的按键 9，通过该按键 9触发的信号输 入至处理器 U1进行处理。该狩猎相机还可以设置有音频处理单元， 该音频处理单元包括 将声音信号转换为电信号输入至处理器 U1进行处理的麦克风 5和将处理器 U1输出的电 信号转换为声音信号输出的喇叭 12， 该处理器 U1通过功放电路 13驱动喇叭 12。
另外， 本发明的狩猎相机还具有与处理器 U1通讯连接的存储单元、 该存储单元包括 FLASH6和 DDR (双倍速率同步动态随机存储器） 7。
本发明的狩猎相机可以用被设置为拍摄视频状态、也可以设置为拍摄图片状态，并且 可以设定拍摄的时间长度或者图片张数等等。 拍摄到的视频或者图片被储存在 SD卡中。 在拍摄的时候除了方位被记录在图片或视频上之外， 时间也会被记录下来。这样， 当用户 查看视频或者图片时，不但可以知道拍摄的时间，也可以得到猎物从摄像机的哪个方位来。
综上所述仅为本发明较佳的实施例，并非用来限定本发明的实施范围。即凡依本发明 申请专利范围的内容所作的等效变化及修饰， 皆应属于本发明的技术范畴。

Claims

权利要求书
1. 一种 360度自动跟踪式狩猎相机， 其特征在于： 包括处理器， n个红外感应器， 以及， 均受控于处理器的摄像头、回转运动机构和供电单元，各红外感应器分别与处理器的不同 的输入端口相对应， 其中， n为大于等于 3的自然数； 所述回转运动机构带动摄像头沿一 个方向顺时针或者逆时针转动；
所有红外感应器在周向上排列设置，各红外感应器的可视范围叠加起来在水平面上覆 盖 360度，每个红外感应器对应一个固定的拍摄方位，相邻红外感应器的可视范围的重叠 区域对应一个固定的拍摄方位， 形成 2η个固定的拍摄方位。
2. 根据权利要求 1所述的 360度自动跟踪式狩猎相机， 其特征在于： 还设置有在所述回 转运动机构的带动下随摄像头同步转动的电子指南针， 所述摄像头相对电子指南针静止, 所述电子指南针输出的方位信号输入至处理器中， 以确定摄像头进行拍摄的地理方位。
3. 根据权利要求 2所述的 360度自动跟踪式狩猎相机， 其特征在于： 所述摄像头沿着电 子指南针的 Χ-Υ坐标系中的 Υ轴的正向安装。
4. 根据权利要求 1所述的 360度自动跟踪式狩猎相机， 其特征在于： 还设置有与处理器 通讯连接的红外照明单元，所述红外照明单元包括亮度侦测传感器和红外发光管，所述处 理器通过发光管驱动电路驱动红外发光管；所述红外照明单元中至少红外发光管在回转运 动机构的带动下随摄像头一起转动。
5. 根据权利要求 4所述的 360度自动跟踪式狩猎相机， 其特征在于： 所述供电单元的通 过电池为回转运动机构、摄像头和红外照明单元供电的供电回路上设置有受控于处理器的 开关管。
6. 根据权利要求 1至 5中任一项所述的 360度自动跟踪式狩猎相机， 其特征在于： 所述 回转运动机构包括步进马达，处理器通过马达驱动电路驱动步进马达转动，所述步进马达 通过传动机构带动摄像头转动。
7. 根据权利要求 1所述 360度自动跟踪式狩猎相机的工作方法， 其特征在于： 开机后， 所述 360度自动跟踪式狩猎相机进入待机状态，在所述待机状态下，所述摄像头停止在一 个固定的待机方位上，此时， 供电单元为处理器和红外感应器供电； 所述 360度自动跟踪 式狩猎相机进入待机状态后， 完成以下步骤： 步骤 S1 : 处理器扫描连接红外感应器的各输入端口， 检测是否有感应信号输入， 若 检测到感应信号， 则进入步骤 S2; 若未检测到感应信号， 则处理器继续进行扫描； 歩骤 S2:处理器 U1根据基本同时出现感应信号的输入端口确定有效拍摄方位，并且， 处理器控制供电单元为回转运动机构和摄像头供电； 歩骤 S3: 处理器启动回转运动机构和摄像头后， 处理器根据各有效拍摄方位在回转 运动机构的转动方向上与待机方位的方位差，控制回转运动机构带动摄像头由近至远顺次 到达各有效拍摄方位进行拍摄； 歩骤 S4: 处理器在摄像头完成一次回转运动中的所有有效拍摄方位上的拍摄后控制 回转运动机构带动摄像头复位至待机方位上， 并使狩猎相机进入待机状态。
8. 根据权利要求 7所述的工作方法， 其特征在于： 所述歩骤 S2中确定有效拍摄方位的 方法如下：
( 1 ) 若相邻二个红外感应器基本同时输出感应信号， 则相邻二个红外感应器的可视 范围的重叠区域对应的拍摄方位为有效拍摄方位，而相邻二个红外感应器各自对应的拍摄 方位为非有效拍摄方位；
(2)若非相邻红外感应器同时输出感应信号， 则输出感应信号的红外传感器各自对 应的拍摄方位均为有效拍摄方位。
9. 根据权利要求 7或 S所述的工作方法， 其特征在于： 所述 360度自动跟踪式狩猎相机 设置有相对摄像头静止，随摄像头同步转动的电子指南针，所述处理器在摄像头进行拍摄 时将接收到的电子指南针输出的方位信号记录于所拍摄的视频或者图片上。
10.根据权利要求 7或 8所述的工作方法， 其特征在于： 所述 360度自动跟踪式狩猎相机 设置有与处理器通讯连接的红外照明单元，所述红外照明单元包括亮度侦测传感器和红外 发光管， 其中， 至少红外发光管在回转运动机构的带动下随摄像头一起转动；
在步骤 S2中， 处理器控制供电单元为回转运动机构、 摄像头和红外照明单元供电， 供电后， 亮度侦测传感器将采集到的环境亮度值输入至处理器与设定的亮度阈值进行比 较， 当输入的环境亮度值低于亮度阈值时，该处理器在摄像头运动至有效拍摄方位时将通 过发光管驱动电路启动红外发光管。
PCT/CN2011/075644 2011-04-18 2011-06-13 一种360度自动跟踪式狩猎相机及其工作方法 WO2012142783A1 (zh)

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