WO2020042562A1 - 投影系统及投影设备的自动开机方法 - Google Patents
投影系统及投影设备的自动开机方法 Download PDFInfo
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- WO2020042562A1 WO2020042562A1 PCT/CN2019/076620 CN2019076620W WO2020042562A1 WO 2020042562 A1 WO2020042562 A1 WO 2020042562A1 CN 2019076620 W CN2019076620 W CN 2019076620W WO 2020042562 A1 WO2020042562 A1 WO 2020042562A1
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- projection
- lens
- protection device
- support portion
- support
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- 238000000034 method Methods 0.000 title claims description 10
- 239000002184 metal Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/38—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by folding, e.g. pivoting or scissors tong mechanisms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
Definitions
- the invention belongs to the technical field of optical equipment, and particularly relates to a projection system and an automatic startup method of the projection equipment.
- the current product design is a bracket that manually opens the lens protective cover and supporting function.
- the startup circuit is triggered.
- the bracket needs to be manually adjusted according to the position between the projection screen and the screen, so that the projection screen is just projected on the screen and a clear image is presented.
- the technical problem mainly solved by the present invention is to provide a new projection system to solve the problems of inconvenience that the automatic adjustment and manual adjustment cannot be performed in the prior art.
- a technical solution adopted by the present invention is to provide a projection system including a projection lens, a lens protection device, a support structure, and a control circuit for controlling the projection lens to be turned on and off.
- the projection lens drives the projection lens to move
- the lens protection device is linked with the support structure
- the projection lens and / or the lens protection device is provided for detecting the projection lens and the lens protection
- a distance sensor that is offset between the devices.
- the support structure is a support bracket including a first support portion supporting the projection device, a second support portion corresponding to the first support portion, and a connection between the first support portion and the second support portion.
- the foldable connection part of the support part is driven away from the outside by the first support part and the second support part and drives the lens protection device to move relative to the projection lens.
- one of the first support portion and the second support portion is magnetic, and the other of the first support portion and the second support portion may be magnetized under a current-carrying condition, so that the The first support portion and the second support portion repel each other under an energized condition.
- the projection system further comprises a motor connected to the lens protection device and driving the lens protection device to move, and when the distance sensor detects that the support structure is in a certain state, it sends information to the control circuit, so that The control circuit controls the motor to rotate to drive the lens protection device to move relative to the projection lens.
- the first support portion is a metal wound with a thin wire
- the second support portion is a magnet
- the supporting structure is a plurality of height-adjustable supporting feet.
- the support foot includes a first sleeve and a second sleeve which are sleeved with each other, a motor driving the relative movement of the first sleeve and the second sleeve, and the first sleeve is provided with A lead screw, a second sleeve is provided with a moving seat extending in the direction of the first sleeve and sleeved on the lead screw, and the motor drives the lead screw to rotate to realize the first sleeve and the The relative displacement between the second sleeves is described.
- the support foot includes a front support foot located near the light exit and a rear support foot remote from the light exit, and the front support foot and the rear support foot are controlled independently from each other to perform height control. Adjustment.
- the lens protection device is rotatable or translationally disposed in front of the light outlet in the axial direction, and the light outlet is opened or closed by rotation or translation of the lens protection device.
- another technical solution adopted by the present invention is to provide an automatic startup method of a projection device, which includes the projection system as described above and includes the following steps:
- the support structure adjusts the position of the projection device under external control and drives the lens protection device to move;
- the distance sensor detects an offset between the projection lens and the lens protection device and inputs the control circuit
- the control circuit controls the projection device to turn on.
- the projection system of the present invention includes a projection device having a projection lens, a lens protection device, a support structure, and a control circuit for controlling the opening and closing of the projection lens.
- the structure supports the projection device and drives the projection device to move
- the lens protection device is linked with the support structure
- the projection device and / or the lens protection device is provided for detecting the projection lens and the lens protection device.
- the distance sensor is shifted between the lens protection devices. When the distance sensor detects that the distance between the projection lens and the lens protection device reaches a preset value, the control circuit controls the projection lens to be turned on. By setting the distance sensor, the projection lens can be automatically turned on according to the distance detection result.
- the height of the support structure can be automatically adjusted by the remote control to achieve the effect of the ideal projection height.
- avoiding frequent wear caused by moving the lens protection device and moving the lens holder can increase the reliability of the product, make the product more automated and intelligent, and have a good user experience.
- FIG. 1 is a schematic structural diagram of a first embodiment of a projection system according to the present invention.
- FIG. 2 is a schematic diagram of a supporting structure of a first embodiment of a projection system of the present invention
- FIG. 3 is a working circuit diagram of a distance sensor according to a first embodiment of a projection system of the present invention
- FIG. 4 is a schematic structural diagram of a second embodiment of a projection system according to the present invention.
- FIG. 5 is a schematic structural diagram of another aspect of the second embodiment of the projection system of the present invention.
- FIG. 6 is a schematic diagram of a supporting structure of a second embodiment of a projection system of the present invention.
- FIG. 7 is a schematic structural diagram of a third embodiment of a projection system according to the present invention.
- FIG. 8 is a schematic diagram of a projection state of a projection lens according to a third embodiment of the projection system of the present invention.
- FIG. 9 is a working circuit diagram of a distance sensor according to a third embodiment of the projection system of the present invention.
- the invention provides a projection system to solve the problem that the prior art projection system and projection equipment cannot achieve intelligent start.
- the following description is made in combination with specific embodiments.
- the projection system of the present invention includes a projection device having a projection lens 11, a lens protection device 2, a support structure 3 supporting the projection device 1, and a control circuit for controlling the projection lens 11 to be turned on and off.
- the lens protection device 2 is movably fixed on the projection lens 11.
- the lens protection device 2 can be rotatably disposed in front of the projection lens 11 of the projection device 1.
- the lens protection device 2 is fixed on one side of the projection lens 11.
- the projection lens 11 is opened or closed by the rotation of the lens protection device 2. .
- the projection system of the present invention includes a distance sensor 4 for detecting the distance between the projection device 1 and the lens protection device 2.
- the distance sensor 4 may be provided on the projection device 1 or on the lens protection device 2. Of course, it may be A distance sensor is provided on the projection device 1 and the lens protection device 2.
- the distance sensor may be an infrared sensor or an ultrasonic distance sensor. Specifically, in this embodiment, a distance sensor 4 is installed on each side of the vertical upper and lower edges of the projection lens 11 of the projection device 1. The infrared radiation emitted by the transmitting tube of the distance sensor 4 is reflected by the lens protection device 2.
- the projection system presets a preset value.
- the preset value is the distance between the distance sensor 4 and the lens protection device 2.
- the support structure 3 is a liftable support bracket, which includes a first support portion A supporting the projection lens, a second support portion B corresponding to the first support portion A, and a connection between the first support portion A and A foldable connection portion of the second support portion.
- the second support portion B is in contact with the external fixed surface and is used to support the entire projection system.
- the first support portion A and the second support portion B can approach each other or move away from each other under the linkage of the connection portion.
- the first support portion A and the second support portion B are parallel to each other.
- One of the first support portion A and the second support portion B is magnetic, and the other can be magnetized under the energized condition.
- the first support portion and the second support portion are mutually exclusive under the energized condition, so that the projection device 1 follows As the first supporting portion A rises, when the projection device 1 rises to a certain height, the projection lens 11 opens.
- the first support portion A is a metal wound with a thin wire
- the second support portion B is a magnet. In this way, under the current-carrying condition, after the conductive wire of the first support portion A is energized, the first support portion A is magnetized, and the second support portion B is mutually repelled and away from each other.
- the projection system further includes a motor connected to the lens protection device 2 and the support structure 3.
- a motor connected to the lens protection device 2 and the support structure 3.
- the support structure is first powered on.
- the support structure 3 starts to rise.
- the electric motor connected to the lens protection device 2 starts to rotate, driving the lens protection device 2 to start rotating at a certain angle, thereby opening the projection lens 11.
- the receiving tube of the distance sensor received a weak reflected signal
- the control circuit confirmed that the lens was released, and it was formally turned on, and the projection device entered the working state.
- the control circuit is provided with an MCU main chip (Microcontroller Unit), a standby chip and a voltage comparator.
- the control circuit includes a main chip MCU, a standby chip, a voltage comparator, and a distance sensor.
- the height of the support bracket can be automatically adjusted by the remote control to achieve the effect of ideal projection height.
- it can free hands and achieve more intelligent control; on the other hand, it avoids the frequent movement of the lens protection device and Wear caused by moving the lens mount can increase product reliability.
- FIG. 6 is a second embodiment of the present invention.
- the principle of the second embodiment is substantially the same as that of the first embodiment.
- the supporting structure 3 is a plurality of adjustable heights. Support feet.
- the support foot includes a first sleeve 301, a second sleeve 302, and a motor 303 connected and driving the first sleeve 301 and the second sleeve 302 to move relative to each other.
- the motor 303 is a stepping motor.
- a lead screw 3011 is provided in the first sleeve 301, and a moving seat 3021 extending in the direction of the first sleeve 301 and sleeved on the lead screw 3011 is provided on the second sleeve 302, which is driven when the stepping motor rotates
- the lead screw 3011 rotates to realize the relative displacement between the first sleeve 301 and the second sleeve 302, thereby achieving a change in the height of the support foot support.
- FIG. 5 in this embodiment, there are two sets of support feet, including a front support foot 31 on the side close to the projection lens 11 and a rear support foot 32 on the side far from the projection lens 11.
- the front support feet 31 and The rear support feet 32 are controlled independently from each other, and the height is adjusted separately. In this way, the projection angle of the projection lens can be changed by controlling the front support foot 31 and the rear support foot 32 respectively.
- U1 is a main chip MCU
- U2 is a standby chip
- U3 is a voltage comparator
- U4 is a distance sensor.
- the principle is the same as the previous embodiment. The basic working principle is that when the bracket is retracted to a certain degree and the distance sensor cannot detect the bracket, the micro-projector enters the power-on state.
- the invention also provides a projection device and an automatic startup method of the projection device, which include the projection system as described above.
- the method for automatically turning on the projection device includes the following steps:
- the projection device is powered on by a remote control or a mechanical switch, and then the support structure is controlled by outside, such as a remote control, to adjust the position of the projection device, and drive the lens protection device to move;
- the distance sensor detects the distance between the projection lens and the lens protection device and inputs the control circuit
- the control circuit controls the projection device to start working.
- For a specific working process refer to the foregoing description of the projection device.
- the projection system of the present invention includes a projection device having a projection lens, a lens protection device, a support structure, and a control circuit for controlling the opening and closing of the projection lens.
- the structure supports the projection device and drives the projection device to move
- the lens protection device is linked with the support structure
- the projection device and / or the lens protection device is provided for detecting the projection lens and the lens protection device.
- the distance sensor is shifted between the lens protection devices. When the distance sensor detects that the distance between the projection lens and the lens protection device reaches a preset value, the control circuit controls the projection lens to be turned on. By setting the distance sensor, the projection lens can be automatically turned on according to the distance detection result.
- the height of the support structure can be automatically adjusted by the remote control to achieve the effect of the ideal projection height. On the one hand, it can free hands and achieve smarter On the other hand, avoiding frequent wear caused by moving the lens protection device and moving the lens holder can increase the reliability of the product, make the product more automated and intelligent, and have a good user experience.
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Abstract
本发明的投影系统包括具有投影镜头的投影设备、镜头保护装置、支撑结构以及控制所述投影镜头开启和关闭的控制电路，所述支撑结构支撑所述投影设备并带动所述投影设备移动，所述镜头保护装置与所述支撑结构连动，所述投影设备和/或所述镜头保护装置上设置有用于检测所述投影镜头与所述镜头保护装置之间偏移的距离传感器，当所述距离传感器检测到所述投影镜头与所述镜头保护装置之间距离达到预设值时，所述控制电路控制所述投影镜头开启。本发明的投影系统可以通过控制投影镜头的位置实现投影设备的自动开启，使得产品更自动化和智能化，具有很好的用户体验。
Description
本发明属于光学设备技术领域，特别是涉及一种投影系统及投影设备的自动开机方法。
目前产品的设计是一种手动打开镜头保护盖及支撑作用的支架，当手动操作镜头保护盖至一定位置(没有挡住镜头)时，触发开机电路。同时，开机后需要根据投影画面与屏幕之间的位置手动调整支架，使投影画面刚好投射到屏幕上，并呈现清晰的图像。手动调整支架以及镜头保护盖，在实际应用中有诸多不便。
因此，实有必要提供一种新的投影系统及投影设备的自动开机方法以解决上述问题。
发明内容
本发明主要解决的技术问题是提供一种新型投影系统，以解决现有技术中无法自动调节，手动调节诸多不便的问题。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种投影系统，包括投影镜头、镜头保护装置、支撑结构以及控制所述投影镜头开启和关闭的控制电路，所述支撑结构支撑所述投影镜头并带动所述投影镜头移动，所述镜头保护装置与所述支撑结构连动，所述投影镜头和/或所述镜头保护装置上设置有用于检测所述投影镜头与所述镜头保护装置之间偏移的距离传感器，当所述距离传感器检测到所述投影镜头与所述镜头保护装置之间距离达到预设值时，所述控制电路控制所述投影镜头开启。
优选的，所述支撑结构为支撑支架，包括支撑所述投影设备的第一 支撑部、与所述第一支撑部相对应的第二支撑部以及连接所述第一支撑部和所述第二支撑部的可折叠的连接部，在外界驱动下下，所述第一支撑部与所述第二支撑部之间相互远离并驱动所述镜头保护装置相对所述投影镜头移动。
优选的，所述第一支撑部和所述第二支撑部中的一个具有磁性，所述第一支撑部和所述第二支撑部中的另一个在通电条件下可被磁化，使得所述第一支撑部与所述第二支撑部在通电条件下相互排斥。
优选的，所述投影系统还包括与所述镜头保护装置相连接并带动所述镜头保护装置运动的马达，当距离传感器检测到支撑结构处于某一状态时，发送信息给所述控制电路，所述控制电路控制马达运旋转从而带动所述镜头保护装置相对所述投影镜头移动。
优选的，所述第一支撑部为缠绕有细导线的金属，所述第二支撑部为磁体。
优选的，所述支撑结构为多个可调节高度的支撑脚。
优选的，所述支撑脚包括相互套设的第一套筒和第二套筒以及驱动所述第一套筒和所述第二套筒相对运动的电机、所述第一套筒内设置有导螺杆，第二套筒上设置有向所述第一套筒方向延伸并套设在所述导螺杆上的运动座，所述电机驱动所述导螺杆旋转实现所述第一套筒与所述第二套筒之间的相对位移。
优选的，所述支撑脚包括分别位于靠近出光口一侧的前支撑脚和远离出光口一侧的后支撑脚，所述前支撑脚和所述后支撑脚之间相互独立控制，分别进行高度调节。
优选的，所述镜头保护装置可沿轴向旋转或可平移地设置在所述出光口前，通过所述镜头保护装置的旋转或平移打开或关闭所述出光口。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种投影设备的自动开机方法，其包括如上所述的投影系统，包括如下步骤：
投影设备通电后，所述支撑结构在外界控制下调整所述投影设备的位置，并带动所述镜头保护装置移动；
所述距离传感器检测所述投影镜头与所述镜头保护装置之间的偏 移并输入所述控制电路；
所述控制电路控制所述投影设备开启工作。
本发明的有益效果是：区别于现有技术的情况，本发明的投影系统包括具有投影镜头的投影设备、镜头保护装置、支撑结构以及控制所述投影镜头开启和关闭的控制电路，所述支撑结构支撑所述投影设备并带动所述投影设备移动，所述镜头保护装置与所述支撑结构连动，所述投影设备和/或所述镜头保护装置上设置有用于检测所述投影镜头与所述镜头保护装置之间偏移的距离传感器，当所述距离传感器检测到所述投影镜头与所述镜头保护装置之间距离达到预设值时，所述控制电路控制所述投影镜头开启。通过设置距离传感器，可以根据距离检测结果实现投影镜头的自动开启，在实际应用中，支撑结构的高度可通过遥控器自动调节，以达到理想投射高度的效果，一方面可以解放双手，实现更智能化的控制；另一方面避免经常性的掰动镜头保护装置和移动镜头支架而造成的磨损，可增产品的可靠性，使得产品更自动化和智能化，具有很好的用户体验。
图1是本发明投影系统第一种实施方式的结构示意图；
图2是本发明投影系统第一种实施方式的支撑结构的示意图；
图3是本发明投影系统第一种实施方式的距离传感器的工作电路图；
图4是本发明投影系统第二种实施方式的结构示意图；
图5是本发明投影系统第二种实施方式另一角度的结构示意图；
图6是本发明投影系统第二种实施方式的支撑结构的示意图；
图7是本发明投影系统第三种实施方式的结构示意图；
图8是本发明投影系统第三种实施方式投影镜头开启状态的示意图；
图9是本发明投影系统第三种实施方式的距离传感器的工作电路图。
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明提供一种投影系统以解决现有技术投影系统及投影设备无法实现智能开启的问题。下面结合具体实施方式进行说明。
实施例一
如图1至图3所示，本发明投影系统包括具有投影镜头11的投影装置、镜头保护装置2、支撑投影装置1的支撑结构3以及控制投影镜头11开启和关闭的控制电路。
镜头保护装置2可运动地固设于投影镜头11上。例如，镜头保护装置2可沿轴向旋转地设置在投影设备1的投影镜头11前，镜头保护装置2的固定在投影镜头11的一侧，通过镜头保护装置2的旋转打开或关闭投影镜头11。
本发明投影系统包括用于检测投影设备1与镜头保护装置2之间距离的距离传感器4，该距离传感器4可以设置在投影设备1上，也可以设置在镜头保护装置2上，当然，也可以投影设备1和镜头保护装置2上均设置一个距离传感器。该距离传感器可以是红外传感器，也可以是超声波距离传感器。具体在本实施方式中，为在投影设备1的投影镜头11垂直上下边缘两侧分别安装一个距离传感器4。距离传感器4的发射管发出的红外线被镜头保护装置2反射，若距离传感器4的接收管接收到反射信号，则证明镜头保护装置2与投影镜头11未产生足够的偏移，即出光口未打开，投影系统依然处于待机状态。投影系统预先设定一个预设值，具体在本实施方式中，预设值为距离传感器4与镜头保护装置2之间的距离，当所述距离传感器检测到所述投影镜头与所述镜头保护装置之间距离达到预设值时，所述控制电路控制所述投影镜头开启，从而实现投影系统的自动开启。
在本实施方式中，支撑结构3为可升降的支撑支架，其包括支撑投影镜头的第一支撑部A、与第一支撑部A相对应的第二支撑部B以及连 接第一支撑部A和第二支撑部的可折叠的连接部。其中第二支撑部B与外界固定面相接触，用于支撑整个投影系统。第一支撑部A与第二支撑部B可以在连接部的联动下相互靠近或相互远离。优选的，第一支撑部A与第二支撑部B之间相互平行。
第一支撑部A和第二支撑部B中的一个具有磁性，另一个在通电条件下可被磁化，这样，在通电条件下第一支撑部与第二支撑部相互排斥，使得投影设备1随着第一支撑部A上升，当投影设备1上升到一定高度，投影镜头11打开。具体在本实施方式中，第一支撑部A为缠绕有细导线的金属，第二支撑部B为磁体。这样，在通电条件下，第一支撑部A的导线通电后，使得第一支撑部A被磁化，与第二支撑部B之间相互排斥并远离。
进一步的，投影系统还包括与所述镜头保护装置2和支撑结构3相连动的马达，在实际应用中，当给定开机信号后，支撑结构最先上电。使得支撑结构3开始升高。在支撑结构3的第一支撑部A上升到一定的高度后，镜头保护装置2相连的电动马达开始旋转，带动镜头保护装置2开始旋转一定角度，从而使投影镜头11打开。
此时距离传感器的接收管接收到反射信号微弱，控制电路确认为镜头释放，正式导通，投影设备进入工作状态。
控制电路内设置有MCU主芯片(微控制单元，Microcontroller Unit)、待机芯片和电压比较器。具体的，控制电路内包括主芯片MCU，待机芯片、电压比较器、距离传感器。
本实施方式中，支撑支架的高度可通过遥控器自动调节，以达到理想投射高度的效果，一方面可以解放双手，实现更智能化的控制；另一方面避免经常性的掰动镜头保护装置和移动镜头支架而造成的磨损，可增产品的可靠性。
实施例二
参照图4至图6所示，为本发明的第二种实施方式，其与第一种实施方式的原理大致相同，区别仅在于，在本实施方式中，支撑结构3为 多个可调节高度的支撑脚。
如图6所示，支撑脚包括相互套设的第一套筒301、第二套筒302以及连接并驱动第一套筒301和所述第二套筒302相对运动的电机303。在本实施方式中，电机303为步进电机。第一套筒301内设置有导螺杆3011，第二套筒302上设置有向第一套筒301方向延伸并套设在导螺杆3011上的运动座3021，步进电机转动时会驱动所述导螺杆3011旋转实现第一套筒301与第二套筒302之间的相对位移，从而实现支撑脚支撑的高度变化。
参照图5所示，在本实施方式中，支撑脚共有两组，包括分别位于靠近投影镜头11一侧的前支撑脚31和远离投影镜头11一侧的后支撑脚32，前支撑脚31和后支撑脚32之间相互独立控制，分别进行高度调节。这样，就可以通过分别控制前支撑脚31和后支撑脚32来改变投影镜头的投射角度。
实施例三
参照图7到图9所示，为本发明第三种实施方式，其与前两种实施方式大致相同，区别仅在于，在本实施方式中，镜头保护装置2可平移地设置在所述投影镜头11前，通过镜头保护装置2的平移打开或关闭投影镜头11。
如图9所示，为本实施方式的控制电路和传感器工作电路图，其中U1为主芯片MCU，U2为待机芯片，U3为电压比较器，U4是距离传感器。其与前述实施方式原理相同，基本工作原理是，当支架收缩到一定程度，距离传感器不能检测到支架时，微型投影仪进入开机状态。
本发明还提供一种投影设备以及该投影设备的自动开机方法，其包括如上所述的投影系统。
该投影设备的自动开机方法包括如下步骤：
首先通过遥控或机械开关等使得投影设备通电，随后支撑结构在外界控制下，例如遥控器调节，调整投影设备的位置，并带动所述镜头保护装置移动；
距离传感器检测投影镜头与所述镜头保护装置之间的距离并输入所述控制电路；
所述控制电路控制所述投影设备开启工作，具体的工作过程参照前述对投影设备的说明。
本发明的有益效果是：区别于现有技术的情况，本发明的投影系统包括具有投影镜头的投影设备、镜头保护装置、支撑结构以及控制所述投影镜头开启和关闭的控制电路，所述支撑结构支撑所述投影设备并带动所述投影设备移动，所述镜头保护装置与所述支撑结构连动，所述投影设备和/或所述镜头保护装置上设置有用于检测所述投影镜头与所述镜头保护装置之间偏移的距离传感器，当所述距离传感器检测到所述投影镜头与所述镜头保护装置之间距离达到预设值时，所述控制电路控制所述投影镜头开启。通过设置距离传感器，可以根据距离检测结果实现投影镜头的自动开启，在实际应用中，支撑结构的高度可通过遥控器自动调节，以达到理想投射高度的效果，一方面可以解放双手，实现更智能化的控制；另一方面避免经常性的掰动镜头保护装置和移动镜头支架而造成的磨损，可增产品的可靠性，使得产品更自动化和智能化，具有很好的用户体验。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。
Claims (10)
- 一种投影系统，其特征在于，包括具有投影镜头的投影设备、镜头保护装置、支撑结构以及控制所述投影镜头开启和关闭的控制电路，所述支撑结构支撑所述投影设备并带动所述投影设备移动，所述镜头保护装置与所述支撑结构连动，所述投影设备和/或所述镜头保护装置上设置有用于检测所述投影镜头与所述镜头保护装置之间位置的距离传感器，当所述距离传感器检测到所述投影镜头与所述镜头保护装置之间的距离达到预设值时，所述控制电路控制所述投影镜头开启。
- 根据权利要求1所述的投影系统，其特征在于，所述支撑结构为支撑支架，包括支撑所述投影设备的第一支撑部、与所述第一支撑部相对应的第二支撑部以及连接所述第一支撑部和所述第二支撑部的可折叠的连接部，在外界驱动下，所述第一支撑部与所述第二支撑部之间相互远离并驱动所述镜头保护装置相对所述投影镜头移动。
- 根据权利要求2所述的投影系统，其特征在于，所述第一支撑部和所述第二支撑部中的一个具有磁性，所述第一支撑部和所述第二支撑部中的另一个在通电条件下可被磁化，使得所述第一支撑部与所述第二支撑部在通电条件下相互排斥。
- 根据权利要求3所述的投影系统，其特征在于，所述投影系统还包括与所述镜头保护装置相连接并带动所述镜头保护装置运动的马达，当距离传感器检测到支撑结构相对所述镜头保护装置的距离达到某一状态时，发送信息给所述控制电路，所述控制电路控制马达旋转从而带动所述镜头保护装置相对所述投影镜头移动。
- 根据权利要求3所述的投影系统，其特征在于，所述第一支撑部为缠绕有细导线的金属，所述第二支撑部为磁体。
- 根据权利要求1所述的投影系统，其特征在于，所述支撑结构为多个可调节高度的支撑脚。
- 根据权利要求6所述的投影系统，其特征在于，所述支撑脚包括相互套设的第一套筒和第二套筒以及驱动所述第一套筒和所述第二套 筒相对运动的电机，所述第一套筒内设置有导螺杆，第二套筒上设置有向所述第一套筒方向延伸并套设在所述导螺杆上的运动座。
- 根据权利要求6所述的投影系统，其特征在于，所述支撑脚包括分别位于靠近出光口一侧的前支撑脚和远离出光口一侧的后支撑脚，所述前支撑脚和所述后支撑脚之间相互独立控制，分别进行高度调节。
- 根据权利要求1所述的投影系统，其特征在于，所述镜头保护装置可沿轴向旋转或可平移地设置在所述投影镜头的出光口前，通过所述镜头保护装置的旋转或平移打开或关闭所述出光口。
- 一种投影设备的自动开机方法，其包括如权利要求1到9任意一项所述的投影系统，其特征在于，包括如下步骤：投影设备通电后，所述支撑结构在外界控制下调整所述投影设备的位置，并带动所述镜头保护装置运动；所述距离传感器检测所述投影镜头与所述镜头保护装置之间的位置，并将所述位置反馈给所述控制电路；所述控制电路检测到所述位置达到预设值时，控制所述投影设备开启工作。
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