CN208873031U - A kind of wireless display control device - Google Patents
A kind of wireless display control device Download PDFInfo
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- CN208873031U CN208873031U CN201821952724.6U CN201821952724U CN208873031U CN 208873031 U CN208873031 U CN 208873031U CN 201821952724 U CN201821952724 U CN 201821952724U CN 208873031 U CN208873031 U CN 208873031U
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- chip microcontroller
- mobile terminal
- display control
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Abstract
The utility model discloses a kind of wireless display control devices, it is related to projector control technology field, the utility model includes with the single-chip microcontroller U2 of computer communication and respectively mobile terminal, function button group and the 2.4G wireless communication module JP1 with single-chip microcontroller U2 communication, the single-chip microcontroller U2 controls work for lantern slide projection and provides data support for realizing the hardware controls to mobile terminal；The mobile terminal is used for speaker, for carrying out mapping control to lantern slide mouse；The function button group is for realizing the function control to single-chip microcontroller U2；The 2.4G wireless communication module JP1 is for realizing the communication between single-chip microcontroller U2 and computer, the utility model has liberated the difficult situation before speaker is locked in by mouse podium using mobile terminal sensor group and wireless telecommunications means, it allows speaker to there are more means and audience to interact, improves speech quality.
Description
Technical field
The utility model relates to projector control technology fields, more particularly to a kind of wireless display control device.
Background technique
Projector is also known as projector, is a kind of equipment that can be projected image or video on curtain, can be by not
The same computer of interface together, VCD, DVD, BD, game machine, DV etc., which are connected, plays corresponding lantern slide or vision signal, projects
Instrument is widely used in family, office, school and public place of entertainment.
Although projector easily carries out projection application, traditional projector needs the throwing of mouse control lantern slide
Shadow, in particular for teachers' instruction or speech, speaker has just been locked on podium by mouse, is if desired carried out with spectators mutual
It is dynamic, need speaker to go down podium, and at this moment, speaker not can control the broadcasting of lantern slide again, cause to drill during speech
Speaker needs to socialize in the control to lantern slide and between the interacting of spectators, and cannot influence with spectators' real-time interactive
Speech quality.
Utility model content
The purpose of this utility model is that: make speaker to solve the projection pattern of traditional mouse control lantern slide
Cannot with spectators' real-time interactive, influence give a lecture quality the problem of, the utility model provides a kind of wireless display control device.
The utility model specifically uses following technical scheme to achieve the goals above:
A kind of wireless display control device is communicated including the single-chip microcontroller U2 with computer communication and respectively with single-chip microcontroller U2
Mobile terminal, function button group and 2.4G wireless communication module JP1,
The single-chip microcontroller U2 controls work for lantern slide projection and provides data for realizing the hardware controls to mobile terminal
It supports；
The mobile terminal is used for speaker, for carrying out mapping control to lantern slide mouse；
The function button group is for realizing the function control to single-chip microcontroller U2；
The 2.4G wireless communication module JP1 is for realizing the communication between single-chip microcontroller U2 and computer.
Further, the mobile terminal and single-chip microcontroller U2 communication are actually mobile terminal sensor group mpu1 and monolithic
Machine U2 communication, the mobile terminal sensor group mpu1 include acceleration transducer and gyroscope, and single-chip microcontroller U2 passes acceleration
Sensor and gyroscope realize hardware controls, by reading the data of acceleration transducer and gyroscope, realize four parameter DMP data
Fusion, realizes stable attitude data, controls work for lantern slide projection and provides basic data support.
Further, it after the acceleration transducer data realize acquisition and filtering processing on mobile terminals, then transmits
To single-chip microcontroller U2.
Further, data are passed through by list using 2.4G wireless communication module JP1 between the single-chip microcontroller U2 and computer
The UART interface of piece machine U2 and the RS232 interface of computer are interconnected, and realize the transmission of attitude motion information.
Further, the Bluetooth communication part of the computer and the Bluetooth communication part of mobile terminal APP, which are realized, communicates,
Mobile terminal APP tests the change in displacement of mobile terminal using acceleration transducer, to convert magic lantern for change in displacement
The movement of piece mouse.
Further, it is filtered after the change in displacement of the acceleration transducer acquisition mobile terminal using median filtering algorithm
Except the clutter of mutation, low frequency filtering is carried out using acceleration information of the high-pass filter to acquisition, then the data obtained is turned
Change and handle, by Bluetooth communication fractional transmission trace information, trace information is shown on computer.
Further, the mobile terminal sensor group mpu1 further includes camera, the image information that camera is acquired
Obtain laser facula information after being handled, complete image coordinate to lantern slide screen coordinate mapping relations, on computers
Laser facula coordinate information is converted into mouse coordinates, realizes that the mapping to mouse controls.
Further, the single-chip microcontroller U2 model STC12LE5A60S2, mobile terminal sensor group mpu1 model
The tool of MPU6050,2.4G wireless communication module JP1 model nRF24L01, single-chip microcontroller U2 and mobile terminal sensor group mpu1
Body connection are as follows:
20 feet and 21 feet of single-chip microcontroller U2 are correspondingly connected with 3 feet of mobile terminal sensor group mpu1 and 4 feet respectively.
Further, the specific connection of the single-chip microcontroller U2 and 2.4G wireless communication module JP1 are as follows:
25 feet, 17 feet, 28 feet, 39 feet, 6 feet and 8 feet of single-chip microcontroller U2 respectively with 3 feet of 2.4G wireless communication module JP1,
4 feet, 6 feet, 7 feet, 5 feet and 8 feet are connected respectively.
Further, the wireless display control device further includes power module, the power module respectively with single-chip microcontroller
U2, mobile terminal sensor group mpu1 and 2.4G wireless communication module JP1 electrical connection, power module includes battery supply interface J1
And voltage-stablizer U1, the physical circuit connection of the power module are as follows:
1 end of battery supply interface J1 is connected with the cathode of zener diode D3, the anode and battery of zener diode D3
2 ends of power interface J1 connect, and 1 end of battery supply interface J1 is connect with 3 feet of voltage-stablizer U1, and the 2 of battery supply interface J1
End is connect with 1 foot of voltage-stablizer U1, and 3 feet of voltage-stablizer U1 are also connected with the anode and the one of capacitor CB1 of electrolytic capacitor C2
End, the cathode and the other end of capacitor CB1 and 1 foot of voltage-stablizer U1 of electrolytic capacitor C2 are connect, and 2 feet of voltage-stablizer U1 are connected with electricity
Solve anode and one end of capacitor CB2 of capacitor C1, the cathode of electrolytic capacitor C1 and the other end and the 1 of voltage-stablizer U1 of capacitor CB2
Foot connect and ground；
2 feet of voltage-stablizer U1 are whole with 38 feet of single-chip microcontroller U2,2 feet of 2.4G wireless communication module JP1 and movement respectively
1 foot of end sensor group mpu1 connects.
The beneficial effects of the utility model are as follows:
1, the utility model realizes single-chip microcontroller U2 to the hardware controls of acceleration transducer and gyroscope first, passes through reading
These sensors are taken, four parameter DMP data fusions is realized, realizes stable attitude data, control work for lantern slide projection
Basic data are provided to support；Acceleration transducer data are completed in movement using the acceleration transducer on mobile terminal
It acquires and is filtered in terminal, be ready for following data processing；Single-chip microcontroller is realized by 2.4G wireless communication module
The connection of communication link between computer completes attitude motion information by the communication link and uploads to computer；It utilizes
Acceleration transducer acquires the change in displacement of mobile terminal, and the trace information of mobile terminal is shown on the computer screen, is reached
The purpose write in the air；The utility model has liberated speaker by mouse using mobile terminal sensor group and wireless telecommunications means
Mark is locked in the difficult situation before podium, and speaker is allowed to have more means and audience to interact, and may be implemented for unreal
The miniaturization and micro energy lose design of lamp piece mouse mappings control, high convenient for engineering control precision, reaction speed is fast, and power consumption is low.
2, the mobile terminal of the utility model just can be realized the control to lantern slide mouse by downloading installation related software
System carries convenient for speaker, easy to use.
3, the utility model realizes that the control precision of the mapping control to mouse is high by the camera on mobile terminal, control
Freedom degree processed is also very high, can easily realize impromptu circle note on lantern slide.
Detailed description of the invention
Fig. 1 is the utility model using single-chip microcontroller U2 as the control block diagram of core.
Fig. 2 is the utility model single-chip microcontroller U2 and mobile terminal sensor group mpu1 and 2.4G wireless communication module JP1 electricity
Road catenation principle figure.
Fig. 3 is the utility model power module circuit schematic.
Fig. 4 is flow chart of the utility model mobile terminal APP based on opencv.
Fig. 5 is the utility model computer programme flow diagram.
Specific embodiment
In order to which those skilled in the art better understand the utility model, with reference to the accompanying drawing with following embodiment to this
Utility model is described in further detail.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of wireless display control device, including the single-chip microcontroller U2 with computer communication
And mobile terminal, function button group and the 2.4G wireless communication module JP1 communicated respectively with single-chip microcontroller U2,
As shown in figure 5, for the flow diagram of computer program, the control by startup program realization device to lantern slide,
For the single-chip microcontroller U2 for realizing the hardware controls to mobile terminal, the mobile terminal and single-chip microcontroller U2 communication are actually to move
Dynamic end sensor group mpu1 and single-chip microcontroller U2 is communicated, and the mobile terminal sensor group mpu1 includes acceleration transducer and top
Spiral shell instrument, single-chip microcontroller U2 realize hardware controls to acceleration transducer and gyroscope, by reading acceleration transducer and gyroscope
Data, realize four parameter DMP data fusions, realize stable attitude data, for lantern slide projection control work provide substantially
Data support；
The mobile terminal is used for speaker, for carrying out mapping control to lantern slide mouse；
The function button group is for realizing the function control to single-chip microcontroller U2；
The 2.4G wireless communication module JP1 for realizing the communication between single-chip microcontroller U2 and computer, single-chip microcontroller U2 with
Data are passed through by the UART interface of single-chip microcontroller U2 and the RS232 of computer using 2.4G wireless communication module JP1 between computer
Interface carries out the interconnection based on communications protocol, realizes the transmission of attitude motion information；
After the acceleration transducer data realize acquisition and filtering processing on mobile terminals, then it is transmitted to single-chip microcontroller
U2。
As shown in figure 4, be flow chart of the mobile terminal APP based on opencv, the Bluetooth communication part of the computer with
Communication is realized in the Bluetooth communication part of mobile terminal APP, and mobile terminal APP develops environment using Eclipse, counts when testing communication
Calculation machine selects packet capturing software WINCAP, the data whether sent by mobile terminal to test PC machine, and mobile terminal APP is utilized
Acceleration transducer tests the change in displacement of mobile terminal, to convert change in displacement to the movement of lantern slide mouse；
Mutation is filtered out using median filtering algorithm after the change in displacement of the acceleration transducer acquisition mobile terminal
Clutter carries out low frequency filtering using acceleration information of the high-pass filter to acquisition, then the data obtained is converted and handled,
By Bluetooth communication fractional transmission trace information, trace information is shown on computer, wherein conversion is related to gravity with processing
Mathematical operations and the noise processed such as some conversions of acceleration and its three-dimensional coordinate of component building and integral；Added by measuring
The acceleration of 3 axis is projected to vertical direction i.e. gravity direction and horizontal direction is constituted by acceleration of the velocity sensor on 3 axis
Plane on, acceleration quadratic integral is displaced, motion profile of the mobile terminal on this face is obtained, is passed by bluetooth
Defeated trace information, is shown on computer screen, achievees the purpose that write in the sky.
Embodiment 2
The present embodiment advanced optimizes on the basis of embodiment 1, specifically:
The mobile terminal sensor group mpu1 further includes camera, by the way that capture program is written to camera, will be imaged
The yuv format image information of head acquisition carries out statistics with histogram, obtains segmentation threshold after statistics, then carry out two-value quantification treatment,
650nm laser facula information in yuv image is obtained by 2D median filtering, the centre bit of hot spot is obtained by bright center algorithm
Set, by 6 calibration procedures on computer, complete image coordinate to lantern slide screen coordinate mapping relations, by upper
Communication link is stated, coordinate information is converted into mouse coordinates control on computers, realizes mapping control of the laser to mouse
System has reached the screen map control of bigger freedom degree.
Embodiment 3
As shown in Figures 2 and 3, the present embodiment advanced optimizes on the basis of embodiment 2, specifically:
The single-chip microcontroller U2 model STC12LE5A60S2, mobile terminal sensor group mpu1 model MPU6050,
The specific connection of 2.4G wireless communication module JP1 model nRF24L01, single-chip microcontroller U2 and mobile terminal sensor group mpu1 are as follows:
20 feet and 21 feet of single-chip microcontroller U2 are correspondingly connected with 3 feet of mobile terminal sensor group mpu1 and 4 feet respectively；
The specific connection of the single-chip microcontroller U2 and 2.4G wireless communication module JP1 are as follows:
25 feet, 17 feet, 28 feet, 39 feet, 6 feet and 8 feet of single-chip microcontroller U2 respectively with 3 feet of 2.4G wireless communication module JP1,
4 feet, 6 feet, 7 feet, 5 feet and 8 feet are connected respectively；
The wireless display control device further includes power module, and the power module is whole with single-chip microcontroller U2, movement respectively
End sensor group mpu1 and 2.4G wireless communication module JP1 electrical connection, power module includes battery supply interface J1 and pressure stabilizing
Device U1, the physical circuit connection of the power module are as follows:
1 end of battery supply interface J1 is connected with the cathode of zener diode D3, the anode and battery of zener diode D3
2 ends of power interface J1 connect, and 1 end of battery supply interface J1 is connect with 3 feet of voltage-stablizer U1, and the 2 of battery supply interface J1
End is connect with 1 foot of voltage-stablizer U1, and 3 feet of voltage-stablizer U1 are also connected with the anode and the one of capacitor CB1 of electrolytic capacitor C2
End, the cathode and the other end of capacitor CB1 and 1 foot of voltage-stablizer U1 of electrolytic capacitor C2 are connect, and 2 feet of voltage-stablizer U1 are connected with electricity
Solve anode and one end of capacitor CB2 of capacitor C1, the cathode of electrolytic capacitor C1 and the other end and the 1 of voltage-stablizer U1 of capacitor CB2
Foot connect and ground；
2 feet of voltage-stablizer U1 are whole with 38 feet of single-chip microcontroller U2,2 feet of 2.4G wireless communication module JP1 and movement respectively
1 foot of end sensor group mpu1 connects；
Function button group includes function button S1-S5, the function button S1-S5 respectively with 1 foot of single-chip microcontroller U2,44
Foot, 43 feet, 42 feet and 41 feet are correspondingly connected with, and 40 feet of the single-chip microcontroller U2 are connected with voltage detection circuit, single-chip microcontroller U2
14 feet and 15 feet be connected with crystal oscillating circuit, 4 feet of single-chip microcontroller U2 are connected with reset circuit.
The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, the utility model
Scope of patent protection be subject to claims, it is equivalent made by all specifications and accompanying drawing content with the utility model
Structure change similarly should be included in the protection scope of the utility model.
Claims (10)
1. a kind of wireless display control device, which is characterized in that including the single-chip microcontroller U2 with computer communication and respectively with list
Mobile terminal, function button group and the 2.4G wireless communication module JP1 of piece machine U2 communication,
The single-chip microcontroller U2 controls work for lantern slide projection and provides data branch for realizing the hardware controls to mobile terminal
It holds；
The mobile terminal is used for speaker, for carrying out mapping control to lantern slide mouse；
The function button group is for realizing the function control to single-chip microcontroller U2；
The 2.4G wireless communication module JP1 is for realizing the communication between single-chip microcontroller U2 and computer.
2. a kind of wireless display control device according to claim 1, which is characterized in that the mobile terminal and single-chip microcontroller
U2 communication is actually that mobile terminal sensor group mpu1 and single-chip microcontroller U2 is communicated, and the mobile terminal sensor group mpu1 includes
Acceleration transducer and gyroscope, single-chip microcontroller U2 realize hardware controls to acceleration transducer and gyroscope, are accelerated by reading
The data of sensor and gyroscope are spent, four parameter DMP data fusions is realized, realizes stable attitude data, are lantern slide projection
Control work provides basic data and supports.
3. a kind of wireless display control device according to claim 2, which is characterized in that the acceleration transducer data
After realizing acquisition and filtering processing on mobile terminals, then it is transmitted to single-chip microcontroller U2.
4. a kind of wireless display control device according to claim 1, which is characterized in that the single-chip microcontroller U2 and computer
Between using 2.4G wireless communication module JP1 by data by the UART interface of single-chip microcontroller U2 and the RS232 interface of computer into
Row interconnection, realizes the transmission of attitude motion information.
5. a kind of wireless display control device according to claim 4, which is characterized in that the Bluetooth communication of the computer
Part and the Bluetooth communication part of mobile terminal APP realize and communicate that mobile terminal APP tests movement using acceleration transducer
The change in displacement of terminal, to convert change in displacement to the movement of lantern slide mouse.
6. a kind of wireless display control device according to claim 3, which is characterized in that the acceleration transducer acquisition
The clutter for being filtered out mutation after the change in displacement of mobile terminal using median filtering algorithm adds acquisition using high-pass filter
Speed data carries out low frequency filtering, then the data obtained is converted and is handled, by Bluetooth communication fractional transmission trace information,
Trace information is shown on computer.
7. a kind of wireless display control device according to claim 2, which is characterized in that the mobile terminal sensor group
Mpu1 further includes camera, and laser facula information is obtained after the image information that camera acquires is handled, and completes image and sits
The mapping relations of lantern slide screen coordinate are marked, laser facula coordinate information is converted into mouse coordinates on computers, are realized
Mapping control to mouse.
8. a kind of wireless display control device according to claim 2, which is characterized in that the single-chip microcontroller U2 model
STC12LE5A60S2, mobile terminal sensor group mpu1 model MPU6050,2.4G wireless communication module JP1 model
The specific connection of nRF24L01, single-chip microcontroller U2 and mobile terminal sensor group mpu1 are as follows:
20 feet and 21 feet of single-chip microcontroller U2 are correspondingly connected with 3 feet of mobile terminal sensor group mpu1 and 4 feet respectively.
9. a kind of wireless display control device according to claim 8, which is characterized in that the single-chip microcontroller U2 and 2.4G without
The specific connection of line communication module JP1 are as follows:
25 feet, 17 feet, 28 feet, 39 feet, 6 feet and 8 feet of single-chip microcontroller U2 respectively with 3 feet of 2.4G wireless communication module JP1,4 feet,
6 feet, 7 feet, 5 feet and 8 feet are connected respectively.
10. a kind of wireless display control device according to claim 2, which is characterized in that the wireless display control dress
Setting further includes power module, the power module respectively with single-chip microcontroller U2, mobile terminal sensor group mpu1 and 2.4G channel radio
Module J P1 electrical connection is interrogated, power module includes battery supply interface J1 and voltage-stablizer U1, the physical circuit of the power module
Connection are as follows:
1 end of battery supply interface J1 is connected with the cathode of zener diode D3, the anode and battery supply of zener diode D3
2 ends of interface J1 connect, and 1 end of battery supply interface J1 is connect with 3 feet of voltage-stablizer U1,2 ends of battery supply interface J1 and
1 foot of voltage-stablizer U1 connects, and 3 feet of voltage-stablizer U1 are also connected with anode and one end of capacitor CB1 of electrolytic capacitor C2, electricity
The cathode and the other end of capacitor CB1 and 1 foot of voltage-stablizer U1 of solution capacitor C2 is connect, and 2 feet of voltage-stablizer U1 are connected with electrolysis electricity
Hold anode and one end of capacitor CB2 of C1, the 1 foot company of the cathode of electrolytic capacitor C1 and the other end of capacitor CB2 and voltage-stablizer U1
It connects and is grounded；
2 feet of voltage-stablizer U1 are passed with 38 feet of single-chip microcontroller U2,2 feet of 2.4G wireless communication module JP1 and mobile terminal respectively
1 foot of sensor group mpu1 connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821952724.6U CN208873031U (en) | 2018-11-26 | 2018-11-26 | A kind of wireless display control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821952724.6U CN208873031U (en) | 2018-11-26 | 2018-11-26 | A kind of wireless display control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208873031U true CN208873031U (en) | 2019-05-17 |
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ID=66471616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821952724.6U Expired - Fee Related CN208873031U (en) | 2018-11-26 | 2018-11-26 | A kind of wireless display control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208873031U (en) |
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2018
- 2018-11-26 CN CN201821952724.6U patent/CN208873031U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190517 Termination date: 20201126 |