WO2014023170A1

WO2014023170A1 - Greeting lamp and projection method thereof

Info

Publication number: WO2014023170A1
Application number: PCT/CN2013/080296
Authority: WO
Inventors: 岳悫
Original assignee: Yue Que
Priority date: 2012-08-07
Filing date: 2013-07-29
Publication date: 2014-02-13
Also published as: CN102767782A; CN102767782B

Abstract

A greeting lamp and a projection method thereof. The greeting lamp includes: a projection device and a control switch; a plurality of images are stored in the projection device; the control switch is connected with the projection device, and is used to control the projection device to project the plurality of images according to the opening state of the car door. The projection method of the greeting lamp comprises: when the car door is in an opening state, the control switch controls the projection device to project the plurality of images stored in the projection device; when the car door is in a closing state, the control switch controls the projection device to stop projecting. The projection method of the greeting lamp is capable of projecting the plurality of images continuously and meeting individual requirements of users.

Description

Welcome lamp and its projection method

TECHNICAL FIELD The present invention relates to the field of automobiles, and in particular to a welcome lamp and a projection method thereof. BACKGROUND OF THE INVENTION A welcome light is a new type of green light source for vehicles, and is currently mainly used in the door position of automobiles. When the door is opened, the welcome light will project a pattern, for example, a "hello" text pattern or other picture pattern can be projected, and the design is unique and popular. The existing welcome lights are available in a variety of designs depending on the model, but most of the designs are a combination of light source, lens and film. Film film is a commonly used film, which can be drawn on the film by sensitization, which is equivalent to the negative of the photo. After the film is illuminated with a light source, the pattern can be projected. The principle of the existing welcome lamp is similar to that of the slide projector. The main purpose is that the light source is integrated on a film through a group of lenses, and the image on the film is illuminated by the refraction of another lens. On the object, the pattern can be displayed. However, in the prior art, the welcome lamp can only be illuminated by a light source onto a single film film, so that only a single pattern can be projected, and multiple patterns cannot be projected, especially animation or short films. Meet more personalized designs. SUMMARY OF THE INVENTION The present invention provides a welcome lamp and a projection method thereof, which are capable of projecting a plurality of patterns. The technical solution of the embodiment of the present invention is implemented as follows: a welcome light, comprising: a projection device and a control switch; the projection device stores a plurality of pictures; the control switch is connected to the projection device, and The control switch is configured to control projection of the plurality of pictures by the projection device according to a door open state. A welcome lamp projection method, comprising: when a door is in an open state, a control switch controls a projection device to project a plurality of images stored in the projection device; and when the door is in a closed state, the control switch controls the projection device to stop projection. Preferably, the control switch controls the projection device to project a plurality of pictures stored in the projection device, comprising: a plurality of the pictures are stored in a plurality of films in the film group, and the plurality of the films are driven by the dynamic structure It reaches the front of the light source in turn, and is projected in order. As can be seen from the above technical solution, the present invention stores a plurality of pictures by a projection device, for example, a plurality of pictures can be stored by a film group including a plurality of films, a picture carousel or an electronic memory (such as an SD card, a USB flash drive, etc.). The picture can be a static picture, or it can be a dynamic animation, a movie clip, etc. By driving the film group movement, the picture turntable rotation can continuously project multiple pictures or directly project the electronic picture information in the electronic memory through the digital projector, the welcome light can continuously project multiple pictures during projection, satisfying the user more Personalized needs. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic structural view of a photographing apparatus according to an embodiment of the present invention; FIG. 2 is another schematic structural view of a projection apparatus according to an embodiment of the present invention; Schematic. Wherein, 101-film group, 102-light source, 103-transmission gear set, 104-motor, 105-first lens group, 106-second lens group, 107-controller, 201-image selector, 202-electronic memory , 203-digital projector, 31-turntable, 32-picture. DETAILED DESCRIPTION OF THE INVENTION In order to make the objects, the technical solutions and the aspects of the present invention more comprehensible, the present invention will be described in detail below with reference to the accompanying drawings. The invention provides a welcome lamp, comprising: a projection device and a control switch; The projection device stores a plurality of screens; the control switch is connected to the projection device, and the control switch is configured to control projection of the plurality of the images by the projection device according to a door open state. In the embodiment of the present invention, a plurality of pictures are stored in the projection device of the welcome lamp. In particular, the plurality of pictures stored in the projection device may be static pictures, or may be dynamic animations or movie short films, preferably, projections. The means for storing a plurality of pictures in the device may be a film set, a picture carousel or an electronic memory (such as an SD card, a USB flash drive, etc.) or other structure that can implement a storage function. In the embodiment of the present invention, by driving the film group and the picture carousel to continuously project multiple pictures or directly projecting the electronic picture information in the electronic memory through the digital projector, the projection device can continuously project multiple images in the memory during projection. Picture. When the welcoming lamp of the embodiment of the invention is used, it can be installed under the door, at the rear view mirror, or at the chassis position of the vehicle, which can facilitate the projection of the picture. When the welcome lamp provided by the present invention is used, preferably, the screen is projected on the ground, the projection effect is better, and the user is convenient to watch. In the embodiment of the invention, the welcome lamp is provided with a control switch, and the control switch can control the opening and closing of the projection device according to the open state of the door. Specifically, the control switch in the embodiment of the present invention includes: an electronic starter and a door motion sensor; the electronic starter is respectively connected to the door motion sensor and the projection device; and the door motion sensor is used The opening state information of the door is transmitted, and the opening state information is transmitted to the electronic starter; the electronic starter is configured to send a projection opening instruction to the projection device according to the opening state information; The projection device is configured to perform projection of a plurality of the images after receiving the projection open command. For example, when the door is opened, the door motion sensor collects the door opening information, and transmits the door opening information to the electronic starter, and the electronic starter sends a projection opening instruction to the projection device according to the received door opening information, and the projection device The projection of multiple pictures is performed according to the received projection open command. Conversely, when the door is closed, the door motion sensor collects the door closing information, and transmits the door closing information to the electronic starter, and the electronic starter sends a projection closing command to the projection device according to the received door closing information, and the projection The device stops the projection of the plurality of pictures according to the received projection close command. Further, when the illumination intensity of the external environment is not suitable for the projection screen display, if the projection is also performed when the door is opened, the power is wasted. Therefore, the control switch of the embodiment of the present invention further includes: a photosensitive sensor; the photosensitive sensor is connected to the electronic starter, and the photosensitive sensor is configured to collect external light intensity of the vehicle, and is configured to transmit the external light intensity to the electronic starter; And sending a projection opening instruction to the projection device according to the outside light intensity and in combination with the opening state information. Specifically, the electronic starter is provided with a light intensity threshold. When the external light intensity of the light sensor is lower than the set threshold, the electronic starter sends a projection device to open the command to control the opening according to the receiving of the door opening information. The device projects a plurality of pictures. When the external light intensity of the photosensitive sensor is higher than the set threshold, the electronic starter does not send the projection opening command to the projection device even if the electronic starter receives the door opening information. Therefore, the illuminating lamp in the embodiment of the present invention can control the projection of the screen in an environment where the illumination intensity is suitable by the photosensor provided. Further, in addition to the light intensity of the vehicle directly collected by the light sensor, the light intensity of the outside of the vehicle can also be obtained by the power supply current value or the power supply voltage value of the automobile headlight, thereby knowing whether the headlight of the automobile is turned on, thereby according to the headlight of the automobile. The open state indirectly knows the light conditions outside the vehicle, and then knows whether the environment outside the vehicle is suitable for screen projection. The control switch further includes: a current sensor; the current sensor is respectively connected to the automobile headlight and the electronic starter; and the current sensor and the automobile, when the external light condition of the vehicle headlight is detected by detecting the power supply current of the automobile headlight The headlights are connected, and the current supply current value of the automobile headlights can be collected; the current sensor is connected with the electronic starter, and the collected current value can be transmitted to the electronic starter; the electronic starter can And sending a projection on command to the projection device according to the supply current value and in combination with the on state information. When the external light condition of the vehicle is detected by detecting the power supply voltage of the automobile headlight, the control switch further includes a voltage sensor; the voltage sensor is respectively connected to the automobile headlight and the electronic starter; the voltage sensor and the front of the vehicle The light connection can be used to collect the supply voltage value of the automobile headlight; the voltage sensor is connected to the electronic starter, and can be used to transmit the collected power supply voltage value to The electronic starter is configured to send a projection open command to the projection device according to the supply voltage value and in combination with the open state information. In the embodiment of the present invention, a current sensor or a voltage sensor is disposed in the control switch, and the power supply condition of the automobile headlight is detected by the current sensor or the voltage sensor, so that whether the headlight of the automobile is turned on can be detected. When the power supply current value or the power supply voltage value of the collected headlights of the vehicle is zero, it can be known that the headlights of the automobile are not turned on, and the illumination intensity of the external environment is high at this time, and if the projection screen is ineffective when the door is opened, At this time, when the electronic starter receives the door opening information, it does not send a projection opening command to the projection device, and even when the car headlight is not turned on, even if the door welcome lamp is turned on, the projection of multiple screens is not performed. . This saves energy and allows the projection unit to start up when it is active. When the power supply current value of the vehicle headlights is not zero or the power supply voltage value is not zero, it can be known that the headlights of the car are turned on, and the illumination intensity of the external environment is low, and the projection picture is better. In this case, when the door is opened, the electronic starter sends a projection opening command to the projection device, thereby causing the projection device to project a plurality of pictures. In the embodiment of the present invention, in addition to controlling the projection of the welcome lamp by the photosensitive sensor, the current sensor and the voltage sensor in conjunction with the door opening state information, the projection of the welcome lamp can also be controlled by setting the time range. Specifically, a timing device is provided in the control switch, and the set timing device is respectively connected to the door motion sensor and the electronic starter. The timing device is configured to detect a collection time information of the door motion sensor transmitting the opening state information of the door to the electronic starter, and transmitting the collection time to the electronic starter; Comparing the collection time with a preset projection on time range, and if the collection time is within the preset projection on time range, the electronic starter reports the open state information according to the The projection device sends a projection open command. For example, when the preset projection on time range is 19:00-24:00, within the projection on time range, when the electronic starter receives the door opening information, the projection opening instruction is sent to the projection device, and then the projection device Projecting multiple frames. Outside the preset projection time range, the electronic starter will not send a projection open command to the projection device even if the door opening command is received, that is, outside the preset projection time range, the welcome lamp will not be performed even if the door is opened. Screen projection. Further, in the embodiment of the present invention, after the projection device receives the projection open command, a plurality of projections of the image are performed, and the following examples are given for the structure of the projection device: Example 1: The projection device includes a film set, a light source, a power structure, and a controller; the controller is coupled to the power structure, the power structure is coupled to the film set; and the controller is configured to receive After the projection opening command, the dynamic structure is controlled to control the opening and closing of the light source; and the power structure is configured to drive the film movement in the film group to project the film by the light source. Example 2: The projection device comprises a film set, a light source, a power structure, a shutter and a controller; the shutter is disposed directly in front of the light source, and the controller is respectively connected to the power structure and the shutter, The power structure is connected to the film set; the controller is configured to control the action of the power structure after receiving the projection open command, and simultaneously control opening and closing of the light source and activation of the shutter; a power structure for driving the film in the film group to cause the film to be projected by the light source. The projection device of the first example can perform projection of a still picture, and the second example can realize projection of an animation or a short movie. For example 1 and example 2, the control switch further includes an image selector; the image selector is configured to send an image selection instruction; the controller is further configured to receive the image selection instruction, and according to the image The selection command controls the power structure to operate according to a preset rule; the power structure is configured to drive the film movement in the film group such that the film specified by the image selection command is projected by the light source. In addition, with the projection device of the first example, it is also possible to set the rate of film switching in the film group by the image selector, for example, switching a film every 1 second, or switching a film every time the door is opened, thus achieving Automatic switching of film. In addition, a forward/reverse selection button is set on the image selector, and the image to be projected is selected by advancing or rewinding, or the image is encoded in advance, and the image to be projected is directly switched by inputting the code in the image selector. For the projection apparatus in the first and second examples, a screen position calibrator is further disposed in the projection apparatus; all of the films of the film set are provided with an identification structure; and the screen position calibrator is configured to detect the current a relative position detection value of the identification structure on the projected film and the light source, and a relative position detection value is transmitted to the controller; the controller is configured to The position detection value is compared with a preset standard position, and the dynamic structure action is controlled according to the result of the comparison; the power structure is configured to drive the film movement in the film group to make the position of the currently projected film and the pre-predetermined The standard position is set to match, thereby enabling position correction of the projected picture. In the first and second examples, the film set is provided with a film sleeve that can be used for mounting or disassembling the film, so that the user can replace the film according to his or her own preference, and achieve the purpose of random combination of images to meet more individual needs. The film sleeve can be two plastic films adhered to each other, and the film can be mounted by sandwiching the film between the two plastic films, which is extremely convenient to use. Example 3: The projection device comprises: a picture turntable, a light source, a power structure and a controller; wherein the structure of the picture turntable is as shown in FIG. 3, which mainly comprises a plurality of pictures 32 arranged on the turntable 31 and the turntable 31; Connected to the power structure, the power structure is connected to a rotating shaft provided on the turntable 31; the controller is configured to control the action of the power structure after receiving the projection opening command, and simultaneously control the opening and closing of the light source The power structure is configured to drive the picture turntable to rotate so that the picture 32 in the picture turntable is projected by the light source. Example 4: The projection device comprises: a picture turntable, a light source, a power structure, a shutter and a controller; wherein the structure of the picture turntable is as shown in FIG. 3, and mainly comprises a plurality of pictures 32 arranged on the turntable 31 and the turntable 31; The controller is respectively connected to the shutter and the power structure, and the power structure is connected to a rotating shaft provided by the turntable 31. The controller is configured to control the action of the power structure after receiving the projection opening command. Simultaneously controlling the opening and closing of the light source and the activation of the shutter; the power structure is configured to drive the picture turntable to rotate to cause the picture 32 in the picture turntable to be projected by the light source. For example three and example four, the control switch further includes an image selector; the image selector is configured to send an image selection instruction; the controller is further configured to receive the image selection instruction, and according to the image The selection command controls the power structure to operate according to a preset rule; the power structure is configured to drive the picture carousel to rotate, so that the picture specified by the image selection instruction is projected by the light source. The image selector can satisfy the user's freedom to select his or her favorite screen for projection. For the projection devices in the third and fourth examples, the image selector can also set the rate of screen switching in the picture dial, for example, switching one screen every 1 second or switching one screen every time the door is opened, so that the picture can be realized. Automatic switching of the turntable screen. In addition, set the forward and backward selection buttons on the image selector, select the desired projection screen by forward or backward, or pre-code the image on the picture dial, and directly switch to the desired projection by inputting the code in the image selector. Picture. For the projection apparatus of the third and fourth examples, the projection apparatus is further provided in the projection apparatus, further comprising: a screen position calibrator; wherein all the screens in the picture dial are provided with an identification structure; And detecting a relative position of the identifier structure on the currently projected picture and the light source, generating a relative position detection value, and transmitting the relative position detection value to the controller; And comparing the relative position detection value with a preset standard position, and controlling the dynamic structure action according to the comparison result; The power structure is configured to drive the rotation of the rotating shaft of the picture turntable to match the position of the currently projected picture with the preset standard position. Example 5: The projection device includes: an electronic memory, a digital projector, and a controller; the controller is respectively connected to the electronic memory and the digital projector; and the controller is configured to receive the projection open command Thereafter, the picture is retrieved from the electronic memory and projected on the digital projector. The projection device of the fifth example can realize the projection of a plurality of still pictures as well as the projection of a dynamic animation or a movie short film. For example 5, as shown in FIG. 2, the control switch further includes an image selector 201; an image selector 201 for transmitting an image selection instruction; and a controller 107 for receiving the image selection instruction, and The picture specified by the image selection command is retrieved from the electronic memory 202 in accordance with the image selection command to be projected on the digital projector 203. The set image selector 201 allows the user to select a still picture to be projected, or a dynamic animation, a movie clip, according to personal preference. The image selector 201 can set a screen to select a screen to be projected through a touch screen or a button. Preferably, the electronic storage is a mobile storage structure, such as an SD card or a USB flash drive, etc., and the removable storage structure can facilitate copying of electronic image information from other devices. The electronic memory can also be fixedly disposed on the projection device, the data interface is set on the electronic memory, and the electronic image is transmitted to the electronic memory through other devices. For the projection device of the fifth example, it is also possible to set the rate at which the digital projector switches the screen by the controller, for example, switching one screen every one second, so that automatic switching of the screen can be realized. For the projection apparatus of Examples 1 to 4, the power structure includes: an interconnected motor (or electromagnet) and a transmission gear set; wherein the transmission gear set is coupled to a film set or a picture turntable, the motor (or electromagnet) Connected to the controller, the controller controls the starting of the motor to drive the transmission gear set to rotate, and the rotation of the transmission gear set drives the film group or the picture carousel to move the projected picture directly in front of the light source. The controller drives the motor, the motor drives the transmission gear set to rotate, and the transmission gear set drives the film group or the picture turntable to rotate, thereby realizing automatic switching of multiple pictures. Further, in addition to automatically switching playback, multiple frames in the projection device can also switch between multiple images by manually switching. Specifically, the control switch further includes a manual screen selector; the manual screen selector is connected to the projection device for manually selecting a screen in the projection device. Based on the manual switching screen, the projection apparatus is further provided in the embodiment of the present invention, as shown in Example 6 and Example 7; Example 6: a film group, a light source, and a transmission gear set; the transmission gear set is respectively selected from the film group and the manual screen The manual screen selector is configured to drive the rotation of the transmission gear set to drive the movement of the film in the film group, so that the film in the film group is sequentially projected by the light source. Example 7: The projection device comprises: a picture turntable, a light source and a transmission gear set; the picture turntable comprises a plurality of the pictures arranged on the turntable and the turntable; the drive gear set and the manual picture selector and the turntable respectively The set of rotating shafts is connected to the manual screen selector for driving the transmission gear set to rotate, and driving the picture turntable to rotate, so that the pictures in the picture turntable are sequentially projected by the light source. When the door is opened, the projection device starts projecting the stored image, and the projection screen can be switched by the manual screen selector. For the manual screen selector, the specific implementation manner is as follows: a rocker can be arranged on the transmission gear set, and the rocking 4 dry drive gear set can be rotated by manually shaking. At the same time, the transmission gear set can be connected to a start switch, and each time the start switch is depressed, the drive gear set can drive the film group to move a film position. In the first example, the second example and the sixth example, the film group in the projection device may be a ring film group or a film group separated from the head and the tail. When the film group is a ring film group, multiple film loops can be projected, avoiding all the film after the projection ends and then resetting or reselecting, which is simpler to use. When the film group in the projection device is a film group separated from the beginning to the end, the projection device further includes a resetter; the reset device is respectively connected to the controller and the power structure for controlling the The film reset in the film group, especially the film group separated first and last, is filmed when the last film is played. For example, the server is coupled to the drive gear set, and the film set can be used to reset the film as it is projected onto the last film, enabling a new round of projection of the film set. Preferably, the control gear set is reversed when the film set is played to the last one, and the film set can be reset by a simple structure. For the projection device of Example 1, Example 2 and Example 6, further comprising a first lens group and a second lens group; the first lens group being located between the light source and the currently projected film for gathering Light emitted by the light source; an optical axis of the second lens group coincides with an optical axis of the first lens group, and the second lens group is located on a side of the currently projected film facing away from the light source, Used to magnify the projection image. For the projection device of Example 3, Example 4, and Example 7, the method further includes: a first lens group and a second lens group. The first lens group is located between the light source and the currently projected picture of the picture turntable, and is configured to converge the light emitted by the light source; the optical axis of the second lens group and the first lens The sets of optical axes coincide, and the second lens group is located on the side of the currently projected picture that faces away from the light source for magnification of the projected image. In the first example and the third example, after the controller receives the projection opening command, the control power structure moves, and at the same time, the control light source is intermittently opened for controlling the opening and closing of the light source, and the controller controls the light source and the power structure to be sequentially activated. In Example 2 and Example 4, after the controller receives the projection open command, the controller controls the light source to remain on, and the controller controls the power structure and the shutter to start in sequence. In Example 2 and Example 4, the light source can be kept in an activated state by a controller, and the second controller controls the power structure and the shutter to be sequentially activated. When the power structure is activated, the shutter is controlled to be closed, and the film group is moved by the power structure to move the film projected by the skin to the front of the light source. At this time, the second controller controls the power structure to stop working, and the shutter is controlled to open. When turned on, the projection of the film directly in front of the light source is completed. After the shutter is opened for a certain period of time, the controller controls the shutter to close, and the control power structure drives the next film to move directly to the front of the light source. At this time, the power structure stops moving and the shutter is opened again, and the controller controls the shutter and the power structure to alternately turn on and off. Continuous projection of multiple films. In addition, in the present embodiment, the projection apparatus will be further described with reference to FIG. 1. Referring to Fig. 1, a plurality of pictures are stored using the film group 101. The film group includes a plurality of films, and each film has a picture stored thereon, and a plurality of pictures can be projected by continuously projecting a plurality of films. When the interval between projections of each film is short, for example, 0.1 second, after projecting multiple films, the user can see continuous animations or short films. In the projection film set, a plurality of films are moved by the power structure to move the projected film to the front of the light source. Preferably, the power structure can use the motor 104 and the transmission gear set 103, which is simple in structure and easier to implement. The film set 101 is connected to the transmission gear set 103, for example, on the transmission gear set. When the transmission gear set rotates, a plurality of films are sequentially driven to reach the front of the light source 102 to complete the projection. In addition, in the embodiment of the present invention, a picture carousel can also be used to store multiple pictures. The rotation of the picture set around the turntable is driven by driving the rotating shaft of the storage turntable, so that the projected picture is moved to the front of the light source to realize projection. Referring to Fig. 1, when the film group is projected, the light source can be controlled to be in an intermittently activated state, or to maintain a state of continuous activation.

1) When the light source is intermittently activated, the controller 107 provided in the projection device is sequentially activated to control the light source 102 and the power structure (the motor 104 and the transmission gear set 103). For example, when the power structure is started, the controller 107 controls the light source 102 to be turned off, and the film group 101 moves under the driving of the power structure to move the projected film to the front of the light source 102. At this time, the controller 107 controls the power structure. When the operation is stopped, the light source 102 is turned on; after the light source is turned on, the projection of the film directly in front of the light source is completed. After the light source 102 is turned on for a certain period of time, the controller controls the light source 2 to be turned off, and at the same time controls the power structure to move the next film to the front of the light source. At this time, the power structure stops moving the light source 102 again, and the controller controls the light source 102 and the power structure alternately. Turns on and off, completing the continuous projection of multiple films. Preferably, an animation or a movie movie can be viewed when a plurality of films (e.g., 24 sheets) are continuously projected in one second.

2) When the light source is kept on, the controller and shutter are provided in the projection device, and the shutter can be placed directly in front of the light source. The controller controls the power structure and the shutter is activated in sequence. When the power structure is activated, the shutter is controlled to be closed, and the film group is moved by the power structure to move the projected film to the front of the light source. At this time, the controller controls the power structure to stop working, and the shutter is opened, and the shutter is opened. , complete the projection of the film directly in front of the light source. The controller can control the power structure to be turned off after a certain period of time, during which the power structure can move the next film to the front of the light source. After the controller controls the power structure to be turned off, the shutter is controlled to be turned off after a certain period of time, and the light source projects the film directly in front of the light source. After the shutter is closed, the controller controls the power structure to turn on again, and the next film is moved to the front of the light source. The power structure and shutter are sequentially activated under the control of the controller to complete continuous projection of multiple films. The sequential activation of the power structure and the shutter can be understood as: when the film group moves The shutter is in a closed state, and the shutter is in an open state when the film group stops moving and the projected film moves to the front of the light source. In addition, the positional relationship of the first lens group and the second projection group is also shown in FIG. 1, wherein the first lens group 105 is disposed between the light source 102 and the projected film. Since the light emitted by the light source is dispersed, the first lens group can be arranged to converge the light emitted by the light source, so that the projection effect is better after the light source is projected onto the film. On the other side of the film, that is, the second lens group 106 is disposed on the other side of the film away from the light source to magnify the projected image for better viewing. In the embodiment of the invention, the light source is: an LED light source, and the LED light source adopts an advanced constant current control technology, and the light is uniform, the light color is full, and the image is persistent and constant, and the whole lamp has no pollution, no noise, no electronic interference, and is projected. The pattern is more stable and clear. The color of the LED light source is variable and can be illuminated onto the film to present a variety of colors. In addition, for the welcome lamp of the embodiment of the invention, a heat dissipation structure can also be disposed at the light source, which is because the power is large after the light source is turned on, and the heat is turned on for a long time, and the heat is easily burned out. The heat dissipation structure (which can be a fan or a tuyere) can dissipate the heat dissipated by the light source in time, thereby effectively protecting the normal use of the welcome lamp. Based on this concept, a fuse can be installed at the wire of the welcome lamp to cut off the current when the current is too large or too small, or when it is hot, and the protection structure is not damaged. Further, a waterproof structure may be added to the welcome lamp of the embodiment of the present invention. For example, a waterproof rubber raft may be disposed at a projection lens of the projection device, or a waterproof outer casing may be disposed outside the structure of the entire welcoming lamp, thereby being rainable. Avoid water entering the inside of the welcome light in snow or wet conditions, affecting normal use. Based on this concept, a transparent baffle can also be placed in front of the projection lens of the projection device, so that the lens can be protected without affecting the projection. In the embodiment of the present invention, a welcome lamp projection method is further provided. The main processing steps include: when the door is in an open state, the control switch controls the projection device to project multiple images stored in the projection device; when the door is closed, The control switch controls the projection device to stop projection. Wherein, the control switch controls the projection device to project a plurality of pictures stored in the projection device in a plurality of manners; For example, a plurality of said pictures are stored in a plurality of films in a film group, and a plurality of said films are sequentially driven by the power structure to reach the front side of the light source, and are sequentially projected. For example, a plurality of said pictures are stored in an electronic memory, and the digital projector continuously projects a plurality of said pictures. For another example, a plurality of pictures are stored in the picture carousel, and the rotation of the picture carousel is sequentially directed to the front of the light source, and is sequentially projected. The present invention can store a plurality of pictures in a projection device, for example, by a film group including a plurality of films, a picture carousel or an electronic memory (such as an SD card, a USB flash drive, etc.), and the stored picture can be a still picture, or For dynamic animations or short movies. By driving the film group and the picture carousel to continuously project multiple pictures or directly projecting the electronic picture information in the electronic memory through the digital projector, the projection device can continuously project multiple pictures during projection, thereby satisfying more users. Personalized needs. The invention realizes projection of a film-type picture by a light source, a power structure, a lens, etc.; and projection of an electronic image by a digital projector, thereby realizing projection of various forms of pictures. The invention adjusts the light intensity or the time reminder by setting the light sensor or the clock in the control switch, so that the welcome light works at night with a better projection effect, and stops working during the day when the projection effect is poor, thereby realizing the welcome lamp. Work effectively. The invention provides an image selector in the projection device, and the user freely selects his favorite picture through the image selector for projection, which satisfies the user's individual needs. In the welcome lamp of the embodiment of the invention, the manual screen selector can also be used to manually switch the projection screen, and the manual screen selector is used to switch the screen so that the structure of the welcome lamp is simple, the operation is convenient, and the cost is low. The welcome light of the embodiment of the invention can project dynamic pictures such as animations and movies, and can also project multiple static pictures in sequence. For example, by setting a digital projector in a welcome light, it is possible to simultaneously project still pictures and dynamic pictures. For another example, according to the projection requirement, a welcome light having a film set or a picture turntable can be set to project a plurality of still pictures, and a welcome light having a film set or a picture turntable can be set to project a dynamic animation or movie. Further, in the embodiment of the present invention, the switching of the multiple images of the projection may be automatically switched by the control mode, or may be manually switched by the manual mode to meet the personalized requirements of the user. The various embodiments provided by the present invention can be combined with each other in any manner as needed, and the technical solutions obtained by such combinations are also within the scope of the present invention.

Claims

A welcoming lamp, comprising: a projection device and a control switch;

A plurality of pictures are stored in the projection device;

The control switch is coupled to the projection device, and the control switch is configured to control projection of the plurality of images by the projection device according to a door opening state. The welcoming light according to claim 1, wherein the control switch is configured to control projection of the plurality of images by the projection device, including:

The control switch comprises: an electronic starter and a door motion sensor;

The electronic starter is respectively connected to the door motion sensor and the projection device; the door motion sensor is configured to collect the opening state information of the door, and transmit the open state information to the electronic start Device

The electronic starter is configured to send a projection open command to the projection device according to the open state information;

The projection device is configured to perform projection of a plurality of the images after receiving the projection open command. The welcoming lamp of claim 2, wherein the control switch further comprises: a photosensitive sensor;

The photosensitive sensor is connected to the electronic starter, and the photosensitive sensor is used for collecting external light intensity of the vehicle, and is used for transmitting the external light intensity to the electronic starter; And sending a projection open command to the projection device according to the outside light intensity and in combination with the open state information. The welcoming lamp according to claim 2, wherein the control switch further comprises: a current sensor;

The current sensor is respectively connected to the automobile headlight and the electronic starter; the current sensor is configured to collect a supply current value of the automobile headlight, and is configured to transmit the supply current value to the Electronic starter

The electronic starter is configured to send a projection open command to the projection device according to the supply current value and in combination with the open state information. 5. The welcome lamp of claim 2, wherein the control switch further comprises: a voltage sensor;

The voltage sensor is respectively connected to the automobile headlight and the electronic starter; the voltage sensor is configured to collect a supply voltage value of the automobile headlight, and is configured to transmit the supply voltage value to the Electronic starter

The electronic starter is configured to send a projection open command to the projection device according to the supply voltage value and in combination with the open state information.

The welcoming lamp of claim 2, wherein the control switch further comprises: a timing device;

The timing device is respectively connected to the door motion sensor and the electronic starter, and configured to detect a collection time of the open state information transmitted to the electronic starter, and transmit the collected time to the Electronic starter

The electronic starter is configured to compare the collection time with a preset projection on time range, and if the collection time is within the preset projection on time range, the electronic starter is The open state information sends a projection open command to the projection device.

7. The welcoming lamp of claim 2, wherein the projection device comprises: a film set, a light source, a power structure, and a controller;

The controller is connected to the power structure, and the power structure is connected to the film group; the controller is configured to control the action of the power structure after receiving the projection opening command, and simultaneously control the light source Opening and closing;

The power structure is configured to drive the movement of the film in the film set such that the film is projected by the light source.

8. The hospitality lamp of claim 2, wherein the projection device comprises: a picture turntable, a light source, a power structure, and a controller;

The picture turntable includes a plurality of the screens disposed on the turntable and the turntable; the controller is coupled to the power structure, and the power structure is coupled to a rotating shaft disposed on the turntable;

The controller is configured to: after receiving the projection opening instruction, control the dynamic structure to operate, and simultaneously control opening and closing of the light source;

The power structure is configured to drive the picture turntable to rotate to cause a picture in the picture turntable to be projected by the light source. 9. The welcome lamp of claim 2, wherein the projection device comprises: a film set, a light source, a power structure, a shutter, and a controller;

The shutter is disposed directly in front of the light source, the controller is respectively connected to the power structure and the shutter, and the power structure is connected to the film group;

The controller is configured to control the dynamic structure to operate after receiving the projection open command, and simultaneously control opening and closing of the light source and starting the shutter;

10. The hospitality lamp of claim 2, wherein the projection device comprises: a picture turntable, a light source, a power structure, a shutter, and a controller;

The picture turntable includes a plurality of the screens disposed on the turntable and the turntable; the controller is respectively connected to the shutter and the power structure, and the power structure is connected with a rotating shaft provided by the turntable;

The power structure is configured to drive the picture carousel to rotate to cause a picture in the picture carousel to be projected by the light source.

11. The welcoming light of claim 2, wherein the projection device comprises: an electronic memory, a digital projector, and a controller;

The controller is respectively connected to the electronic memory and the digital projector; the controller is configured to: after receiving the projection open command, retrieve a picture from the electronic memory and project the image on the digital projector .

12. The welcome light according to claim 7 or 9, wherein the control switch further comprises an image selector;

The image selector is configured to send an image selection instruction;

The controller is further configured to receive the image selection instruction, and control the power structure to operate according to a preset rule according to the image selection instruction;

The power structure is configured to drive film motion in the film group such that a film specified by the image selection command is projected by the light source. The welcome lamp according to claim 8 or 10, wherein the control switch further comprises an image selector;

The image selector is configured to send an image selection instruction;

The power structure is configured to drive the picture turntable to rotate, so that a picture specified by the image selection instruction is projected by the light source.

14. The welcome light of claim 11, wherein the control switch further comprises an image selector;

The image selector is configured to send an image selection instruction;

The controller is further configured to receive the image selection instruction, and perform a projection of the screen specified by the image selection instruction from the electronic memory according to the image selection instruction to perform projection on the digital projector.

The welcoming light according to any one of claims 2 to 6, wherein the control switch further comprises: a manual screen selector;

The manual screen selector is coupled to the projection device for manual selection of a picture in the projection device.

16. The welcome lamp of claim 15, wherein the projection device comprises: a film set, a light source, and a transmission gear set;

The transmission gear set is respectively connected to the film group and the manual screen selector, and the manual screen selector is configured to drive the transmission gear set to rotate, and drive the film movement in the film group to make the film group The film in the film is sequentially projected by the light source.

17. The welcome lamp of claim 15, wherein the projection device comprises: a picture turntable, a light source, and a transmission gear set;

The picture turntable includes a plurality of the screens disposed on the turntable and the turntable; the transmission gear set is respectively connected to the manual screen selector and the rotating shaft provided by the turntable, and the manual screen selector is used to drive the transmission The gear set rotates to drive the picture turntable to rotate, so that the picture in the picture turntable is sequentially projected by the light source.

The welcoming lamp according to claim 7 or 9, wherein the projection device further comprises: a picture position calibrator; All of the films of the film set are provided with an identification structure;

The screen position calibrator is configured to detect a relative position of the marking structure on the currently projected film and the light source, generate a relative position detection value, and transmit the relative position detection value to the controller;

The controller is configured to compare the relative position detection value with a preset standard position, and control an adjustment power structure action according to the comparison result;

The power structure is configured to drive the movement of the film in the film set to match the position of the currently projected film with the preset standard position.

The welcoming lamp according to claim 8 or 10, wherein the projection device further comprises: a picture position calibrator;

An identification structure is disposed on all the pictures in the picture carousel;

The screen position calibrator is configured to detect a relative position of the identifier structure on the currently projected screen and the light source, generate a relative position detection value, and transmit the relative position detection value to the controller;

The power structure is configured to drive the rotation of the rotating shaft of the picture turntable to match the position of the currently projected picture with the preset standard position.

20. The welcome light of claim 7 or 9 or 16, wherein the film set is a ring film set.

21. A welcome lamp as claimed in claim 7 or claim 9 or claim 16 wherein the film group is a film group separated first and last.

22. A hospital light as claimed in claim 7 or claim 9 or claim 16 wherein the film set comprises a film sleeve for detachable mounting of film.

23. The welcome lamp of claim 21, wherein the projection device further comprises a resetter; the resetter is coupled to the controller and the power structure, respectively, for controlling the film set The reset of the film.

The welcoming lamp according to claim 7 or 9 or 16, wherein the projection device further comprises: a first lens group and a second lens group; The first lens group is located between the light source and the film currently being projected, and is used for collecting light emitted by the light source;

An optical axis of the second lens group coincides with an optical axis of the first lens group, and the second lens group is located on a side of the currently projected film facing away from the light source, which is used for magnification of projection imaging .

The welcoming lamp according to claim 8 or 10 or 16, wherein the projection device further comprises: a first lens group and a second lens group;

The first lens group is located between the light source and the currently projected picture of the picture carousel, and is configured to converge the light emitted by the light source;

An optical axis of the second lens group coincides with an optical axis of the first lens group, and the second lens group is located on a side of the currently projected picture that faces away from the light source, and is used for magnifying the projection image .

26. The welcome light of claim 11 wherein said electronic memory is a mobile storage structure.

27. A method for projecting a welcome lamp, comprising:

When the door is in an open state, the control switch controls the projection device to project a plurality of pictures stored in the projection device;

When the door is in the closed state, the control switch controls the projection device to stop projection.

The method of claim 27, wherein the controlling the switch to control the projection device to project the plurality of images stored in the projection device comprises:

A plurality of said pictures are stored in a plurality of films in the film group, and a plurality of said films are sequentially driven by the power structure to reach the front side of the light source, and are sequentially projected.

A plurality of said pictures are stored in an electronic memory, and the digital projector continuously projects a plurality of said pictures.

30. The method of claim 27, wherein the controlling switch controls the projection device to project a plurality of images stored in the projection device, including:

A plurality of pictures are stored in the picture carousel, and the rotation of the picture carousel is sequentially directed to the front of the light source, and is sequentially projected.