CN111541885A

CN111541885A - DLP projection technology application development platform

Info

Publication number: CN111541885A
Application number: CN202010472210.6A
Authority: CN
Inventors: 高源�; 周家辉; 倪瑶; 刘一清
Original assignee: East China Normal University
Current assignee: East China Normal University
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-08-14
Anticipated expiration: 2040-05-29
Also published as: CN111541885B

Abstract

The invention discloses a DLP projection technology application development platform which comprises a power supply part, a main control board, a daughter board part, a light part, a fan part, a rotary swing platform, a lens, a camera and a case shell. The invention provides the development flexibility to the maximum extent; the structure design of the main control board and the daughter board is adopted, and the DMD projection chip is compatible with various DMD projection chips at the lowest cost; the projection platform structure with the rotary swing platform meets the requirements of multi-angle projection and fine angle adjustment; the multi-directional fan arrangement is favorable for heat dissipation; the main control board is arranged on the board card support, so that the multi-path interface can be conveniently and externally connected.

Description

DLP projection technology application development platform

Technical Field

The invention relates to the technical field of projection, in particular to a DLP projection technology application development platform.

Background

With the increasing popularity of projection platforms in the scenes of home use, educational meetings, mainstream engineering, measurement, professional movie theaters and the like, the requirements of users on projection platforms are gradually changed from single projection to intelligent and interactive applications.

In a traditional projector, a main board is usually placed in a case, and for small and medium-sized developers of a projection platform, in order to realize different intelligent functions, the cost is often huge when the main board, a configuration interface, internal component layout and the like are redesigned; meanwhile, because of different chip packages, pins and the like, the traditional projector can only be compatible with one projection chip, so that the defects of single resolution, single projection proportion and the like are caused, and meanwhile, if the projection chip needs to be replaced, only a mainboard and the like can be replaced, so that the cost is high; another drawback of the conventional projector is that if the projection direction and angle are to be changed, the projector case must be moved by translation, rotation, elevation, etc. left and right, which is not favorable for the requirements of beautiful appearance of the projector, convenient adjustment of the projection angle, fine angle adjustment, projection at a special angle, etc.

The research report of the laser projection market in 2018 in China shows that DLP projection accounts for 91.9% of the laser projector market, and a core light processing chip DMD (Digital micro mirror device) in the DLP projector is often used together with a matched driving chip during development. However, due to the development limitation of the driver chip, the developer cannot use the DMD chip at will. If the FPGA chip is used for replacing the driving chip, the time sequence is complex, the control pins are numerous, and the programming difficulty is high. Thus, despite the obvious advantages, the use of FPGAs with DLP projection platforms is not yet widespread.

Due to the restriction of continuous reinforcement of the intelligent requirement of the projection market and the structural defects of the traditional projector, the projection platform is seriously hindered at the beginning of design and cannot be promoted.

Disclosure of Invention

The invention aims to provide a DLP projection technology application development platform aiming at the defects of the prior art, the DLP projection technology application development platform integrates a power supply part, a main control board, a daughter board part, a light part, a fan part, a rotary swing platform and a lens into a case shell through the design of the case shell, and the projection platform is fully developed through controlling the daughter board part, the light part, the fan part and a camera through a main control 2. The invention adopts FPGA drive to replace DMD drive chip, thus providing development flexibility to the maximum; the structure design of the main control board and the daughter board is adopted, and the DMD projection chip is compatible with various DMD projection chips at the lowest cost; the projection platform structure with the rotary swing platform meets the requirements of multi-angle projection and fine angle adjustment; the fan parts arranged in multiple directions are beneficial to heat dissipation of the invention; the main control board is arranged on a board card support of the chassis shell, so that a plurality of interfaces on the main control board are positioned on the outer side of the chassis shell conveniently; the camera is freely arranged and is connected with an interface of the mainboard through a data line; the invention has the advantages of reasonable structure, high integration level, high working freedom degree, convenient debugging, good projection effect, good compatibility and strong interaction capability.

The technical scheme for realizing the purpose of the invention is as follows:

a DLP projection technology application development platform is characterized by comprising a power supply part, a main control board, a daughter board part, a light part, a fan part, a rotary swing platform, a lens, a camera and a case shell;

the case shell consists of a bottom plate, an inner side plate, a rear cover plate, a board card support, a top plate, a front panel, an outer side plate, a fourth fan support and a foot pad;

the inner side plate divides the bottom plate into a left side and a right side; the front panel, the outer side plate, the rear cover plate and the inner side plate are enclosed to form four walls and are arranged on the left side of the bottom plate, and the fourth fan bracket is arranged on the right side of the bottom plate; the top plate is arranged above the four walls; the board card bracket is arranged on the outer side of the rear cover plate and connected with the bottom plate; the four foot pads are respectively arranged at the four corners of the bottom plate;

a first fan bracket is arranged on the front panel; the outer side plate is provided with a second fan bracket and a third fan bracket;

the rear cover plate is provided with a power socket hole; a power module seat and a lamp bracket seat are arranged on the left side of the bottom plate; the right side of the bottom plate is provided with a rotary swing platform seat, a lens seat and a module bracket seat, and the inner side plate is provided with a shading plate seat;

the power supply part consists of a 220V power socket and a power supply module; the 220V power socket is arranged in the power socket hole of the rear cover plate, and the power module is arranged on the power module seat of the bottom plate;

the main control board is provided with a main board and a plurality of interfaces and is arranged on a board card bracket of the chassis shell;

the daughter board part consists of a radiator, a pressure plate, a daughter board, a holder plate, a DMD chip socket and a DMD chip;

the DMD chip socket and the holder plate are arranged on the daughter board, the daughter board is arranged on one side of the pressure plate, the radiator is arranged on the other side of the pressure plate, and the DMD chip is inserted into the DMD chip socket;

the light part consists of a UHP lamp, a light path conversion module, a light shielding plate, a UHP controller and a color wheel;

the UHP lamp and the color wheel are sequentially arranged above the lamp bracket base at the left side of the bottom plate, the UHP controller is arranged at one side of the lamp bracket base, the light path conversion module is arranged on the module bracket base at the right side of the bottom plate, and the UHP lamp, the color wheel and the light path conversion module are connected through a light path;

the light screen is arranged on the light screen seat of the inner side plate;

the fan part consists of a first fan, a second fan, a third fan and a fourth fan, and the first fan, the second fan, the third fan and the fourth fan are sequentially arranged on a first fan bracket, a second fan bracket, a third fan bracket and a fourth fan bracket of the chassis shell;

the rotary swing platform consists of a rotary platform, a swing platform, a three-axis motion structure, a movable switching frame and a platform base; the three-axis motion structure, the swing platform and the rotating platform are sequentially arranged on the platform base, and the movable switching frame is arranged on the rotating platform;

the rotary swing platform is arranged on the rotary swing platform seat on the right side of the bottom plate;

the daughter board part is arranged on a movable adapter bracket of the rotary swing platform through a pressure plate;

the lens is arranged on the lens seat on the right side of the bottom plate, a light shield is arranged on the lens, and the lens is connected with the light path conversion module through a light path;

the camera is external and is connected with the interface of the main control panel through a data line.

The rotary swing platform is provided with a rectangular coordinate X axis, a Y axis and a Z axis, a first platform swinging up and down around the Y axis and a second platform swinging left and right around the Z axis are arranged on the swing platform, and a first sliding block moving along the X axis, a second sliding block moving along the Y axis and a third sliding block moving along the Z axis are arranged on the three-axis motion structure.

The power supply part is electrically connected with the main control board, the daughter board part, the light part, the fan part and the camera through the power supply module.

The main control board is connected with the daughter board part, the light part, the fan part and the camera through data lines.

And the light path conversion module of the light part is connected with the DMD chip and the lens light path of the daughter board part.

The multi-channel interfaces on the main control board are respectively provided with an HMDI video interface, an MIPI interface, a DVP interface, an RGB display screen interface, a USB interface, an SEP + optical interface, a JTAG debugging interface, an SD card slot, an SATA interface, a UART interface and an SPI interface.

According to the invention, through the design of the case shell, the power supply part, the main control board, the sub-board part, the light part, the fan part, the rotary swing platform and the lens are integrated in the case shell, and the sub-board part, the light part, the fan part and the camera are controlled through the main control 2, so that the projection platform is fully developed. The invention adopts FPGA drive to replace DMD drive chip, thus providing development flexibility to the maximum; the structure design of the main control board and the daughter board is adopted, and the DMD projection chip is compatible with various DMD projection chips at the lowest cost; the projection platform structure with the rotary swing platform meets the requirements of multi-angle projection and fine angle adjustment; the fan parts arranged in multiple directions are beneficial to heat dissipation of the invention; the main control board is arranged on a board card support of the chassis shell, so that a plurality of interfaces on the main control board are positioned on the outer side of the chassis shell conveniently; the camera is freely arranged and is connected with an interface of the mainboard through a data line; the invention has the advantages of reasonable structure, high integration level, high working freedom degree, convenient debugging, good projection effect, good compatibility and strong interaction capability.

Compared with other platforms, the platform has the obvious advantages that:

a) the FPGA chip is used for replacing the driving chip in the design of the main control board, the traditional platform is changed by using the driving chip to perform projection display on the DMD digital micromirror chip, so that the application of the chip is more open, the limitation of the original driving is not limited, and multiple functions can be developed. And the development flexibility is provided to the maximum extent.

b) Compared with the projection platform in the prior art, the invention can be developed with higher degree of freedom by applying the FPGA chip, and besides, the invention arranges the board card bracket on the case shell and arranges the main control board on the board card bracket, thereby facilitating the development and application of the system.

c) The main control board is provided with an HMDI video interface, an MIPI interface, a DVP interface, an RGB display screen interface, a USB interface, an SEP + optical port, a JTAG debugging port, an SD card slot, an SATA interface, a UART interface and an SPI interface on a hardware part, has various complete development approaches, and can be configured autonomously by a user according to requirements. For small and medium-sized developers of projectors, the invention is more convenient for external mainboard design and multi-channel interfaces, and can meet the intelligent development of various projectors with the lowest cost and the lowest research and development time.

d) The main control board and the daughter board part form a mother-daughter board framework, the daughter board part is connected with the main control board through the LVDS interface, if the projection chip needs to be replaced, only the corresponding daughter board needs to be replaced, and the method has the advantages of being low in cost, saving design cost time and the like. The structure of the invention fully solves the problems that the traditional projector is often compatible with only one projection chip, thereby bringing about the defects of single resolution, single projection proportion, high chip replacement cost and the like; simultaneously, the main control board carries out fixed mounting by 16 fixed orificess, possess the position of putting forth strength, effectively avoid the distortion of main control board when the plug of primary and secondary board interface, wait.

e) The daughter board part is arranged on the moving adapter frame of the rotary swing platform through the pressure plate, and projection adjustment of six dimensions can be carried out on a projection picture by respectively adjusting the knobs of the rotary platform, the first platform, the second platform, the first sliding block, the second sliding block and the third sliding block. If the projector in the prior art wants to change the projection direction and angle, the projector case is required to move integrally, such as horizontal translation, rotation or lifting; the invention can meet the requirements of special angle projection, beauty and the like through the design of a six-dimensional adjusting device, and can also achieve the optimal adjustment and correction of the fine projection angle.

f) The development platform is provided with the camera, and can be connected with the main control board through the data line, and the external camera can be randomly placed according to the placement position of the projection platform and the convenient area for gesture recognition during operation. Meanwhile, the design of the camera can be applied to gesture interaction, projector auxiliary focusing or other interaction fields. Due to the adoption of the flat cable, the connection in multiple angles and multiple directions can be carried out without being limited by distance, and the development design of the projection platform and the convenience of later-stage users are favorably improved.

g) The invention fully considers the heat dissipation problem, four fans are arranged at the positions of the power supply part, the daughter board part and the light part, a hollow air outlet is arranged on the case supporting plate, and a radiator is arranged at the other side of the pressing block plate of the daughter board part; the first fan is focused on heat dissipation of the UHP lamp, the second fan and the third fan are focused on heat dissipation of the power supply and the UHP controller, and the fourth fan is focused on heat dissipation of the weight plate and the chip.

Drawings

FIG. 1 is an exploded view of the structure of the present invention;

FIG. 2 is a schematic structural diagram of a housing of a case according to the present invention;

FIG. 3 is a schematic structural diagram of a main control board and a chassis housing according to the present invention;

FIG. 4 is a schematic diagram of the construction of the daughter board portion of the present invention;

FIG. 5 is a schematic structural diagram of a rotary swing platform according to the present invention;

FIG. 6 is a schematic diagram of the power supply and the housing of the case according to the present invention;

FIG. 7 is a schematic structural diagram of a fan portion and a chassis housing according to the present invention;

FIG. 8 is a schematic structural view of a light portion and a housing according to the present invention;

FIG. 9 is a schematic diagram of the operational block diagram of the power supply portion of the present invention;

FIG. 10 is a schematic diagram of a working block of the main control board according to the present invention;

FIG. 11 is a schematic diagram of the working blocks of the light path and the light portion of the present invention.

Detailed Description

Referring to fig. 1, the present invention includes a power supply part 1, a main control board 2, a daughter board part 3, a light part 4, a fan part 5, a rotary swing platform 6, a lens 7, a camera 8, and a case housing 9;

referring to fig. 1 and 2, the chassis housing 9 is composed of a bottom plate 91, an inner side plate 92, a rear cover plate 93, a board support 94, a top plate 95, a front plate 96, an outer side plate 97, a fourth fan support 98 and a foot pad 99;

the inner side plate 92 divides the bottom plate 91 into left and right sides; the front panel 96, the outer panel 97, the rear cover plate 93 and the inner panel 92 enclose a four-wall structure and are arranged on the left side of the bottom plate 91, and the fourth fan bracket 98 is arranged on the right side of the bottom plate 91; the top plate 95 is arranged above the four walls; the board card support 94 is arranged on the outer side of the rear cover plate 93 and connected with the bottom plate 91; the four foot pads 99 are respectively arranged at four corners of the bottom plate 91;

a first fan bracket 961 is arranged on the front panel 96; a second fan bracket 971 and a third fan bracket 972 are arranged on the outer side plate 97;

a power socket hole 931 is formed in the rear cover plate 93; a power module base 911 and a lamp support base 914 are arranged on the left side of the bottom plate 91; a rotary swing platform base 913, a lens holder 912 and a module holder 915 are provided on the right side of the bottom plate 91, and a shutter plate base 921 is provided on the inner side plate 92.

Referring to fig. 1, 2 and 6, the power supply portion 1 is composed of a 220V power socket 11 and a power supply module 12; the 220V power socket 11 is disposed in the power socket hole 931 of the rear cover 93, and the power module 12 is disposed on the power module seat 911 of the bottom plate 91.

Referring to fig. 1, fig. 2, and fig. 3, the main control board 2 is provided with a main board 21 and multiple interfaces, and the main control board 2 is disposed on a board support 94 of the chassis housing 9.

Referring to fig. 1, 2 and 4, the daughter board portion 3 is composed of a heat sink 31, a pressure block board 32, a daughter board 33, a holder board 34, a DMD chip socket 35 and a DMD chip 36;

the DMD chip socket 35 and the holder plate 34 are disposed on the sub-plate 33, the sub-plate 33 is disposed on one side of the pressure plate 32, the heat sink 31 is disposed on the other side of the pressure plate 32, and the DMD chip 36 is inserted into the DMD chip socket 35.

Referring to fig. 1, 2 and 8, the light portion 4 is composed of a UHP lamp 41, a light path conversion module 44, a light shielding plate 45, a UHP controller 46 and a color wheel 47;

the UHP lamp 41 and the color wheel 47 are sequentially arranged above the lamp support base 914 on the left side of the bottom plate 91, the UHP controller 46 is arranged on one side of the lamp support base 914, the light path conversion module 44 is arranged on the module support base 915 on the right side of the bottom plate 91, and the UHP lamp 41, the color wheel 47 and the light path conversion module 44 are connected in a light path;

the light shielding plate 45 is provided on the light shielding plate seat 921 of the inner side plate 92.

Referring to fig. 1, 2 and 7, the fan portion 5 is composed of a first fan 51, a second fan 52, a third fan 53 and a fourth fan 54, and the first fan 51, the second fan 52, the third fan 53 and the fourth fan 54 are sequentially disposed on a first fan bracket 961, a second fan bracket 971, a third fan bracket 972 and a fourth fan bracket 98 of the chassis housing 9.

Referring to fig. 1, 2 and 5, the rotary swing platform 6 is composed of a rotary platform 61), a swing platform 62, a three-axis motion structure 63, a movable adapter 64 and a platform base 65; the three-axis motion structure 63, the swing platform 62 and the rotating platform 61 are sequentially arranged on the platform base 65, and the movable adapter 64 is arranged on the rotating platform 61;

the rotary swing platform 6 is arranged on the rotary swing platform seat 913 on the right side of the bottom plate 91.

Referring to fig. 1, 4 and 5, the daughter board portion 3 is mounted on a movable adapter 64 of the rotary swing platform 6 through a pressing board 32.

Referring to fig. 1, fig. 2, and fig. 8, the lens 7 is disposed on the lens mount 912 on the right side of the bottom plate 91, a light shield is disposed on the lens 7, and the lens 7 is optically connected to the optical path conversion module 44.

Referring to fig. 1, the camera 8 is externally disposed and connected to the interface of the main control board 2 via a data line.

Referring to fig. 5, the rotating and swinging platform 6 has an X axis, a Y axis and a Z axis of rectangular coordinates, a first platform 621 swinging up and down around the Y axis and a second platform 622 swinging left and right around the Z axis are disposed on the swinging platform 62, and a first slider 631 moving along the X axis, a second slider 632 moving along the Y axis and a third slider 633 moving along the Z axis are disposed on the three-axis moving structure 63.

Referring to fig. 9, the power supply part 1 is electrically connected to the main control board 2, the sub board part 3, the light part 4, the fan part 5, and the camera 8 through the power supply module 12.

Referring to fig. 10, the main control board 2 is connected to the daughter board 3, the light part 4, the fan part 5, and the camera 8 via data lines.

Referring to fig. 11, the optical path conversion module 44 of the light part 4 is optically connected to the DMD chip 36 and the lens 7 of the daughter board part 3.

The multi-channel interfaces on the main control board 2 are respectively an HMDI video interface, an MIPI interface, a DVP interface, an RGB display screen interface, a USB interface, an SEP + optical interface, a JTAG debugging interface, an SD card slot, an SATA interface, a UART interface and an SPI interface.

Examples

The working process of the invention is as follows:

referring to fig. 1, 3, 4, 6, 7, 8, and 9, in operation, a 220V power enters the power module 12 through the power socket 11, and the power module 12 converts the 220V voltage into three paths, one of which supplies power to the first fan 51, the second fan 52, the third fan 53, and the fourth fan 54 of the fan portion 5; one path supplies power to the UHP controller 46; the other path supplies power to the main board 21 and supplies power to the sub-board 33 via the main board 21.

The main board 21 is connected with a video signal through an HMDI video interface, the main board 21 processes the video signal and then sends the processed video signal to the sub-board 33, and a micro mirror on the surface of a DMD chip 36 on the sub-board is correspondingly turned over according to the processed video signal; meanwhile, the main board 21 controls the UHP controller 46 to further control the UHP lamp 41 to be turned on, and light emitted by the UHP lamp 41 passes through the color wheel 47 and the light path conversion module 44 and is incident on the surface micromirror of the DMD chip 36 on the daughter board 33. After being reflected by the surface micro-mirror of the DMD chip 36, the light enters the lens 7 through the light path conversion module 44, and the accessed video can be projected on the projector screen. When the main board 21 starts projecting, the main board 21 controls the first fan 51, the second fan 52, the third fan 53 and the fourth fan 54 in the fan portion 5 to start rotating.

If the projection angle needs to be adjusted, six knobs of the rotary platform 61 on the rotary swing platform 6, the first platform 621 and the second platform 622 of the swing platform 62, and the first slider 631, the second slider 632 and the third slider 633 of the three-axis motion structure 63 can be used to perform angle adjustment, and since the rotary swing platform 6 is fixed to the daughter board portion 3, the DMD chip 36 on the adjusted daughter board 33 performs rotary movement of a corresponding angle, so as to change the relative position of the DMD chip 36 and the optical path conversion module 44, thereby adjusting the projection image angle and adjusting the focal length.

The invention has various complete development ways, and the user can carry out autonomous configuration according to the requirement. An implementation of a work scenario is set forth herein.

Place this development platform in room eminence and carry out the projection, camera 8 is placed in chassis bottom plate 91 outside and is used for receiving user's gesture control information.

The 220V power supply is connected through the 220V power socket 11, and after the DMD chip is started up for the first time, a user can adjust the rotary swing platform 6 to calibrate the micro mirror and the light on the DMD chip 36 and perform focusing operation on the lens 7. After the first calibration, this step can be skipped without further modification. The main board 21 controls the color wheel 47 to synchronize with the DMD chip 36, and then transmits data to the DMD chip 36 for projection. The light emitted by the UHP lamp 41 is reflected by the color wheel 47, the light path conversion module 44 and the DMD chip 36, and then emitted from the lens 7, so that the user can see the projected image on the screen.

After the projection is normally displayed, the camera 8 records in real time, and the camera 8 transmits the recorded video to the main board 21 for processing. At this point, if the user lifts his hand, it indicates that the user is about to start controlling the projection interface. After the user lifts his hand, the main board 21 receives the data and processes the data to start tracking the movement of the finger, and simultaneously, the data is displayed on the projection screen in the form of a mouse. When the user continuously clicks downwards twice by the finger, the pressing operation is selected. When the projection screen works, when two fingers of a user extend out and keep for 3s, the projection is suspended, at the moment, the power supply is not powered off, the camera continues to work, but the projection screen displays a turning-off state; during pause, when two fingers of a user extend out and keep for 3s, the user is awakened, namely, the projection is restarted, all the user works normally, and the projection screen display is still the interface during the last pause.

Referring to fig. 9, the operation of the power supply part of the present invention is as follows:

according to the invention, a 220V power supply enters a power supply module 12 through a power socket 11, the power supply module 12 divides the 220V power supply into three paths for supplying power, and one path is connected with a first fan 51, a second fan 52, a third fan 53 and a fourth fan 54 in a fan part 5; one path is connected with a UHP controller 46 of the light part 4 and is connected with the UHP lamp 41 through the UHP controller 46; the other path is connected with the main board 21 of the main control board 2 for supplying power, and is respectively connected with the sub-board 33 of the sub-board part 3, the camera 8 and the color wheel 47 of the light part 4 through the main board 21.

Referring to fig. 10, the working process of the main board of the present invention is as follows:

the main board 21 of the present invention is connected with the sub-board 33 of the sub-board part 3 and transmits the processed video signal; the camera 8 is connected with the main board 21 and transmits a video signal to the main board 21; the main board 21 is connected with a UHP controller 46 of the light part 4; the main board 21 is connected with the switch boards of the first fan 51, the second fan 52, the third fan 53 and the fourth fan 54 in the fan part 5; the main board 21 is connected to the color wheel 47 of the light section 4 and receives a feedback signal of the color wheel 47 for timing calibration.

Referring to fig. 11, the UHP lamp 41 and the color wheel 47 of the light part 4 of the present invention are optically connected to the optical path conversion module 44, and the optical path conversion module 44 of the light part 4 is optically connected to the DMD chip 36 of the daughter board part 3 and the lens 7;

the UHP controller 46 controls the UHP lamp 41 to generate a light source, the light source enters the light path conversion module 44 through the color wheel 47, and the light emitted by the color wheel 47 is reflected by the light path conversion module 44 to the DMD chip 36 on the daughter board; after the light is emitted into the surface micro-mirror of the DMD chip 36 on the daughter board by the light path conversion module 44, the light is reflected by the surface micro-mirror of the DMD chip 36, and then is reflected by the light path conversion module 44 to enter the lens 7, and the lens 7 can project the video accessed by the motherboard 21.

The function of the holder plate 34 of the invention is as follows: the invention is compatible with various DMD chips 36, some DMD chips 36 are directly inserted, and the chips can be inserted into the chip socket 35; some DMD chips 36 are BGA packages, that is, similar to chip packages, and the packaged DMD chips 36 need to be pressed by the holder board 34 when in use; that is, the holder board is another chip "socket", and the DMD chip 36 of the BGA package is pressed against the chip socket 35 through the holder board 34, thereby being fixed to establish electrical connection with the daughter board 33.

According to the invention, because the heat quantity is huge when the light path works, the four fans of the fan part 5 supported by the plate at the highest work simultaneously dissipate a large amount of heat when the instrument works, and the stable work of the system is ensured.

Claims

1. A DLP projection technology application development platform is characterized by comprising a power supply part (1), a main control board (2), a daughter board part (3), a light part (4), a fan part (5), a rotary swing platform (6), a lens (7), a camera (8) and a case shell (9);

the chassis shell (9) is composed of a bottom plate (91), an inner side plate (92), a rear cover plate (93), a board card support (94), a top plate (95), a front panel (96), an outer side plate (97), a fourth fan support (98) and a pad foot (99);

the inner side plate (92) divides the bottom plate (91) into a left side and a right side; the front panel (96), the outer side plate (97), the rear cover plate (93) and the inner side plate (92) enclose to form four walls and are arranged on the left side of the bottom plate (91), and the fourth fan bracket (98) is arranged on the right side of the bottom plate (91); the top plate (95) is arranged above the four walls; the board card support (94) is arranged on the outer side of the rear cover plate (93) and connected with the bottom plate (91); the four foot pads (99) are respectively arranged at four corners of the bottom plate (91);

a first fan bracket (961) is arranged on the front panel (96); a second fan bracket (971) and a third fan bracket (972) are arranged on the outer side plate (97);

a power socket hole (931) is formed in the rear cover plate (93); a power module seat (911) and a lamp bracket seat (914) are arranged on the left side of the bottom plate (91); a rotary swing platform seat (913), a lens seat (912) and a module support seat (915) are arranged on the right side of the bottom plate (91), and a shading plate seat (921) is arranged on the inner side plate (92);

the power supply part (1) is composed of a 220V power socket (11) and a power supply module (12); the 220V power socket (11) is arranged in a power socket hole (931) of the rear cover plate (93), and the power module (12) is arranged on a power module seat (911) of the bottom plate (91);

the main control board (2) is provided with a main board (21) and a plurality of interfaces, and the main control board (2) is arranged on a board card support (94) of the chassis shell (9);

the daughter board part (3) is composed of a radiator (31), a pressure plate (32), a daughter board (33), a holder plate (34), a DMD chip socket (35) and a DMD chip (36);

the DMD chip socket (35) and the holder plate (34) are arranged on the sub-plate (33), the sub-plate (33) is arranged on one side of the pressure plate (32), the radiator (31) is arranged on the other side of the pressure plate (32), and the DMD chip (36) is inserted into the DMD chip socket (35);

the light part (4) consists of a UHP lamp (41), a light path conversion module (44), a light shielding plate (45), a UHP controller (46) and a color wheel (47);

the UHP lamp (41) and the color wheel (47) are sequentially arranged above a lamp bracket base (914) on the left side of the bottom plate (91), the UHP controller (46) is arranged on one side of the lamp bracket base (914), the light path conversion module (44) is arranged on a module bracket base (915) on the right side of the bottom plate (91), and the UHP lamp (41), the color wheel (47) and the light path conversion module (44) are connected through a light path;

the light screen (45) is arranged on the light screen seat (921) of the inner side plate (92);

the fan part (5) is composed of a first fan (51), a second fan (52), a third fan (53) and a fourth fan (54), and the first fan (51), the second fan (52), the third fan (53) and the fourth fan (54) are sequentially arranged on a first fan support (961), a second fan support (971), a third fan support (972) and a fourth fan support (98) of the chassis shell (9);

the rotary swing platform (6) consists of a rotary platform (61), a swing platform (62), a three-axis motion structure (63), a movable switching frame (64) and a platform base (65); the three-axis motion structure (63), the swing platform (62) and the rotating platform (61) are sequentially arranged on the platform base (65), and the movable switching frame (64) is arranged on the rotating platform (61);

the rotary swing platform (6) is arranged on a rotary swing platform seat (913) on the right side of the bottom plate (91);

the daughter board part (3) is arranged on a movable adapter rack (64) of the rotary swing platform (6) through a pressure plate (32);

the lens (7) is arranged on the lens seat (912) on the right side of the bottom plate (91), a light shield is arranged on the lens (7), and the lens (7) is connected with the light path conversion module (44) through a light path;

the camera (8) is external and is connected with the interface of the main control board (2) through a data line.

2. The DLP projection technology application development platform as claimed in claim 1, wherein the rotary swing platform (6) has rectangular coordinates of X axis, Y axis and Z axis, the swing platform (62) is provided with a first platform (621) swinging up and down around the Y axis and a second platform (622) swinging left and right around the Z axis, and the three-axis motion structure (63) is provided with a first slide block (631) moving along the X axis, a second slide block (632) moving along the Y axis and a third slide block (633) moving along the Z axis.

3. The DLP projection technology application development platform as claimed in claim 1, wherein the power supply part (1) is electrically connected with the main control board (2), the sub-board part (3), the light part (4), the fan part (5) and the camera (8) through a power supply module (12).

4. The DLP projection technology application development platform as claimed in claim 1, wherein the main control board (2) is connected with the sub-board part (3), the light part (4), the fan part (5) and the camera (8) through data lines.

5. The DLP projection technology application development platform as claimed in claim 1, wherein the light path conversion module (44) of the light part (4) is optically connected with the DMD chip (36) and the lens (7) of the daughter board part (3).

6. The DLP projection technology application development platform as claimed in claim 1, wherein the multiple interfaces on the main control board (2) are respectively HMDI video interface, MIPI interface, DVP interface, RGB display screen interface, USB interface, SEP + optical port, JTAG debug port, SD card slot, SATA interface, UART interface and SPI interface.