CN204759365U - Wearable intelligent ring multimedia projector system - Google Patents

Abstract

The utility model discloses a wearable intelligent ring multimedia projector system draws together outside stand alone device and wearable intelligent ring, and outside stand alone device comprises large screen, projecting apparatus, camera and PC, the camera is fixed in projecting apparatus top, can shoot the large screen, the PC on through the camera WIFI module of carry carry out data transfer with the camera, wearable intelligent ring includes the ring, and ring outside top has the epirelief part, and embedding laser emission head is equipped with the little circuit board that can fix on the ring in the epirelief part on the side handle of ring, be equipped with left button, right button, button cell and singlechip above the little circuit board. The utility model discloses small and exquisite pleasing to the eye, the function is diversified, and remote operation is nimble convenient, is suitable for popularization and application.

Description

Wearable Smart Ring Multimedia Projection System

technical field

The utility model relates to a teaching system using a new type of laser pointer, in particular to a wearable intelligent ring multimedia projection system which can simulate a mouse for remote operation of a PC for multimedia teaching and collaborative meetings.

Background technique

At present, multimedia technology teaching is becoming more and more popular, and many electronic products at home and abroad have emerged as the times require, but these products have certain limitations in use. For example, there are wearable remote control devices on the market, which use gyroscopes for positioning and wireless transmission. Because the technology is not yet mature, the range of use is only 3-5 meters, and it concentrates all hardware devices in one control device Among them, the volume is large, the appearance is not beautiful, the service life is short, the battery life is short, and frequent charging or battery replacement is required.

The laser pointer is a human-computer interaction system that is widely used in projection display to replace the traditional keyboard and mouse interaction. Remote control laser pointer occupies the main position in the current multimedia classroom. There are many studies on it at home and abroad. From the first-generation laser pointer with single laser function to the second-generation infrared remote control page-turning laser pointer, the page-turning of slides is realized, but it is easily blocked by objects and needs to be aligned at a certain angle; The current third-generation radio frequency remote control laser pointer is composed of an RF (Radio Frequency) radio frequency remote control and a receiver with a USB (Universal Serial Bus) interface, and also has a page turning function. The radio frequency remote control is realized by wireless radio frequency technology, and there is no restriction on direction alignment, but it is easily interfered by external electromagnetic signals. Generally speaking, the remote control laser pointer has a single control function, which cannot be well realized for interactive classrooms or lectures.

Before 2003, the development of electronic whiteboards in my country was still in its infancy. In addition, it was relatively expensive, limited by the investment funds and the level of teachers' information technology, so domestic attention to it was relatively small. After 2004, research on electronic whiteboards increased rapidly, especially the project that the team of Capital Normal University teacher Ding Xingfu started to cooperate with the British company Prometheus in 2004, which had a greater impact in China. In addition, due to the increase in the number of electronic whiteboards, and the beginning of a new round of national curriculum reform in 2005, teaching has changed to be student-centered, emphasizing the interaction between teachers and students, and interactive electronic whiteboards just meet this need. Being introduced into classroom teaching has also increased the research on electronic whiteboards. At present, there are relatively few researches on electronic whiteboards in colleges and universities, and basically stay in the research on a certain key technology or application. In addition, due to the huge investment in the research of the electronic whiteboard, it also hinders its research to a certain extent.

Contents of the invention

purpose of invention

In order to overcome the disadvantages of the existing traditional laser pens such as the inconvenience of remote control in multimedia teaching and collaborative conferences, the asynchronous audio and video, poor interactivity, large volume, not easy to carry, low flexibility, and the need to constantly replace batteries, the utility model provides a A wearable smart ring multimedia projection system, the user only needs to press the button on the wearable smart ring and move the position of the smart device to realize the remote operation of the simulated mouse on the PC.

Technical solutions

The utility model is achieved through the following technical solutions:

A wearable smart ring multimedia projection system, including an external independent device and a wearable smart ring, is characterized in that: the external independent device is composed of a large screen, a projector, a camera and a PC; the camera is fixed above the projector and can capture Large screen, the PC transmits data with the camera through the WIFI module mounted on the camera; the wearable smart ring includes a ring, which has a raised part on the outside of the ring, and a laser emitting head is embedded in the raised part, and the side handle of the ring is equipped with A small circuit board that can be fixed on the ring; a left button, a right button, a button battery and a single-chip microcomputer are arranged on the small circuit board.

The small circuit board and the laser emitting head are connected by wires.

The small circuit board is the right button and the left button from top to bottom, the button battery is in the middle of the right button and the left button, and the single chip microcomputer is placed on the right side of the button battery, and the laser frequency conversion generator module is embedded in the single chip computer.

The left handle of the ring is provided with a small circuit board that can be fixed on the ring, and a right button, a left button, a button battery and a single-chip microcomputer are welded on the small circuit board.

The single-chip microcomputer adopts STC15F104E single-chip microcomputer.

Advantages and effects

The utility model has the following advantages and beneficial effects:

(1) The function of the utility model is diversified, and it can fully realize functions such as simulating a mouse to turn pages up and down, click, and mark lines in a presentation, and the remote operation is flexible and convenient.

(2) The internal structure is not only simple and easy to operate, but also greatly prolongs the service life of the device, and the low power consumption can last for a long time.

(3) The PCB board manufacturing technology is used in the wearable device to achieve the purpose of miniaturization. The larger circuit device is placed in an external independent device, and the laser frequency conversion generator module is embedded in the smart ring to achieve volume reduction. Centralization and miniaturization make the equipment more portable and convenient.

(4) The small size and beauty of the ring can also play a role in decorating the human body to a certain extent.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the structure of the smart ring.

FIG. 3 is a side view of FIG. 2 .

The reference sign says:

1. Large screen, 2. Projector, 3. Camera, 4. PC, 5. Wearable smart ring, 6. Ring, 7. Laser emitter, 8. Convex part, 9. Small circuit board, 10. Right button, 11. Left button, 12. Button battery, 13. Microcontroller, 14. Wire.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

In order to overcome the disadvantages of the existing traditional laser pens such as the inconvenience of remote control in multimedia teaching and collaborative conferences, the asynchronous audio and video, poor interactivity, large volume, not easy to carry, low flexibility, and the need to constantly replace batteries, the utility model provides a A wearable device human-computer interaction system - a wearable smart ring multimedia projection system, the user only needs to press the button on the wearable smart ring and move the smart ring to realize the analog mouse to turn pages up and down and draw lines on the PC Waiting for remote operation.

As shown in Figure 1, the wearable smart ring multimedia projection system is a DSP platform and human-computer interaction system, used to replace the operation of the traditional laser pointer, including an external independent device and a wearable smart ring 5, which It is characterized in that: the external independent device concentrates the core components for realizing the mouse control function, and is composed of a large screen 1, a projector 2, a camera 3 and a PC 4; The computer 4 is not directly connected to the camera 3 and the projector 2, but realizes the data transfer between the camera 3 and the PC 4 through the WIFI module mounted on the camera 3. The PC 4 controls the change of the mouse position on the large screen 1 through a driver program.

The wearable smart ring 5 is not directly connected with an external independent device, but is remotely interacted to realize the operation of controlling the PC 4 .

As shown in Figure 2 and Figure 3, the wearable smart ring 5 is used to replace the operation of the traditional laser pointer, including the ring 6, the outer top of the ring 6 has a convex part 8, the laser emitting head 7 is embedded in the convex part 8, and the ring The side handle of 6 is provided with the small circuit board 9 that can be fixed on the finger ring;

The small circuit board 9 is connected with the laser emitting head 7 through wires 14 .

The small circuit board 9 is respectively the right key 10 and the left key 11 from top to bottom, and the button battery 12 is in the middle of the right key 10 and the left key 11 and is on the left side. Laser variable frequency generator module.

Above-mentioned one-chip computer 13 can adopt STC15F104E one-chip computer.

On the left handle of finger ring 6, be provided with the small circuit board 9 that can be fixed on the finger ring.

The working process of the present utility model is as follows:

The wearable ring 5 emits laser light, and the laser point is projected on the large screen 1 by laser frequency conversion technology. A camera 3 is fixed above the projector 2, and then the camera 3 fixed above the projector 2 detects and tracks the position of the laser point. The camera 3 Connect the PC 4 through the wireless WIFI module, the camera 3 collects the image and video of the laser point track in the large screen 1 and transmits it to the digital media processor and the single-chip processor, after image processing technology and self-adaptive detection of small target size Processing with the neural network BP algorithm to complete the image acquisition, storage and processing, and finally apply the SPI protocol and USB protocol to send the final perfect data to the PC 4 through the WIFI module through the DSP with the WIFI module, and run a series of The program algorithm realizes the user's operation. The camera 3 is fixed at 30 pictures per second. After collecting each picture, the DSP with the WIFI module will send the final processing data to the PC 4 through the WIFI module, so as to control the mouse to track the position of the laser point in real time, so that the operator can Remote control screen operation.

The small circuit board 9 is provided with two inching buttons, respectively the right button 10 and the left button 11, and a button battery 12 is placed on the left part between the left button 11 and the right button 10 to provide power for the laser frequency conversion transmitting module. On the right side of the button battery 13 is a STC15F104E single-chip microcomputer chip, which is used to control the laser beams that generate two frequencies. There is a raised part 8 on the ring 6, and a laser emitting head 7 is embedded inside the raised part 8. When the left button 11 is pressed and held, it is equivalent to turning on the switch of the smart ring, and the laser emitting head 7 will emit laser light. The laser light is always on, and when the left button 11 is long pressed again, the power of the smart ring 6 is turned off, and the laser light is no longer emitted. Connect with a wire 14 between the small circuit board 9 and the laser emitting head 7 . When the left button 11 or the right button 10 of the wearable smart ring is pressed, the laser emitting head 7 emits laser beams of two different frequencies, and the video acquisition and processing system judges the information and controls the left and right buttons of the wireless mouse to operate the PC screen to realize interactive communication.

Example 1:

The external independent device uses TI's DSP chip and STM32 as the core processor. By manipulating the buttons of the smart ring, the light beam hits the large screen 1. Laser points with different frequencies will be generated on the large screen 1, and the camera 3 is fixed on the projection screen. Let it shoot the projection screen 1 on the projector 2, and the camera 3 fixed on the top of the projector 2 collects 30 pictures per second. After collecting each laser point image, it will be sent by the DSP processor with the WIFI module through the WIFI module. It is transmitted to DM6437 and STM32 core processors, after image processing technology, small target size adaptive detection and neural network BP algorithm processing, image acquisition, storage and processing are completed, and finally the SPI protocol and USB protocol are used to mount the WIFI module The DSP will send the final and perfect data to the PC 4 through the WIFI module, and then the PC 4 will drive the change of the mouse position on the large screen 1 and other processing processes to complete the data transfer between the chips and realize the mouse simulation of the USB interface. Function.

The wearable smart ring is used to replace the operation of the traditional laser pointer. The smart ring 6 has a raised part 8, and a laser emitting head 7 is embedded in the raised part 8 of the ring. When the left button 11 is pressed for a long time, it is equivalent to opening When the switch of the smart ring is turned on, the laser emitting head 7 will emit laser light, and the laser light is always on. A small circuit board 9 that can be fixed on the ring is arranged on the left handle of finger ring 6, and left key 11, right key 10, button battery 12, STC15F104E single-chip microcomputer 13 are soldered respectively above the small circuit board 9. Small circuit board 9 is respectively right key 10 and left key 11 from top to bottom. The button battery 12 is in the middle of the right button 10 and the left button 11 on the left side, and a STC15F104E single-chip microcomputer 13 is placed on the right side of the button battery 12, in which a laser frequency conversion generator module is embedded. There is no power switch on the finger ring 6, but press the left key 11 to represent the on and off states of the power supply. The small circuit board 9 and the laser emitting head 7 are connected by a wire 9, so that the STC15F104E single-chip microcomputer 13 generates laser beams of two different frequencies. In order to identify and distinguish the left and right buttons of the mouse, laser frequency conversion technology is used to simulate the left and right buttons of the mouse. Function, when pressing the left button 11 or the right button 10 of the wearable smart ring, the video acquisition and processing system is used to judge the number of times the laser point flickers in n frames of images transmitted by the camera in a unit time to determine whether the operator pressed the left button 11 is still the right button 10, through the wearable smart ring to carry out interactive operation with the computer system at a distance, to realize the remote operation of the simulated mouse to the PC.

Claims (5)

1. a wearable intelligent finger ring multimedia projection systems, comprises outside autonomous device and wearable intelligent finger ring (5), it is characterized in that: outside autonomous device is made up of giant-screen (1), projector (2), video camera (3) and PC (4); Video camera (3) is fixed on projector (2) top, can photograph giant-screen (1), and PC (4) carries out data transmission by the WIFI module of the upper carry of video camera (3) and video camera (3); Wearable intelligent finger ring (5) comprises finger ring (6), and the outside top of finger ring (6) has epirelief part (8), and epirelief part (8) is embedded in laser beam emitting head (7), and the side handle of finger ring (6) is provided with the little circuit board (9) that can be fixed on finger ring; Little circuit board (9) is provided with left button (11), right button (10), button cell (12) and single-chip microcomputer (13) above.

2. wearable intelligent finger ring multimedia projection systems according to claim 1, is characterized in that: be connected by wire (14) between little circuit board (9) with laser beam emitting head (7).

3. wearable intelligent finger ring multimedia projection systems according to claim 1, it is characterized in that: little circuit board (9) is right button (10) and left button (11) from top to bottom respectively, the centre that button cell (12) is in right button (10) and left button (11) keeps left the position of side, the location right of button cell (12) places single-chip microcomputer (13), and single-chip microcomputer is embedded with laser frequency generator module in (13).

4. wearable intelligent finger ring multimedia projection systems according to claim 1, it is characterized in that: the left handle of finger ring (6) is provided with the little circuit board (9) that can be fixed on finger ring, little circuit board (9) is welded with right button (10), left button (11), button cell (12) and single-chip microcomputer (13) above.

5. the wearable intelligent finger ring multimedia projection systems according to claim 1 or 3, is characterized in that: single-chip microcomputer (13) adopts STC15F104E single-chip microcomputer.