CN202126679U - Embedded multimedia auxiliary demonstrator - Google Patents
Embedded multimedia auxiliary demonstrator Download PDFInfo
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- CN202126679U CN202126679U CN2011202031932U CN201120203193U CN202126679U CN 202126679 U CN202126679 U CN 202126679U CN 2011202031932 U CN2011202031932 U CN 2011202031932U CN 201120203193 U CN201120203193 U CN 201120203193U CN 202126679 U CN202126679 U CN 202126679U
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Abstract
The utility model discloses an embedded multimedia auxiliary demonstrator which comprises a microprocessor, a pressure collecting unit, a voice collecting unit, an instrument displacement detecting unit, a display module and a power module used for providing power supply for each unit; wherein the pressure collecting unit, the voice collecting unit and the instrument displacement detecting unit are respectively connected with an input end of the microprocessor; an output end of the microprocessor is connected with the display module; and the microprocessor is communicated with a computer terminal through a Bluetooth module. With the adoption of the structure, the embedded multimedia auxiliary demonstrator has the following advantages that: 1, a three-dimensional acceleration sensor is adopted for typing-in note handwriting so as to meet requirements for distinguishing note texts without a writing medium; 2, equipment is small, is flexible to use and can work in a low power consumption mode at most of the time with low power consumption; a general USB (Universal Serial Bus) interface is provided in the equipment so as to be convenient to charge; 3, voice transmission is clear without noise; and 4, due to a menu operation interface, abundant multimedia operation functions are provided.
Description
Technical field
The utility model relates to multimedia presentation appearance technical field, and particularly a kind of built-in multimedia is assisted demonstrator.
Background technology
Along with multimedia presentation equipment the popularizing of school, company, institutional settings, the demonstrator can own elaborate PowerPoint show knowledge, achievement and solution with multimedia materials in a large number to student or participant.
The method of confirming of conventional cursor position: trace ball location, equipment are heavy relatively, simultaneously inconvenient other operations in location; Optoelectronic device (like mouse), degree of accuracy is high, but too busy to get away writing medium (mouse pad) and dielectric material are strict, can not carry; Capacitive type touch pad belongs to the contact location, and touch pad is expensive, heavy, is not suitable in the classroom, moving using; The ultrasonic locating technology needs heavy location-plate equally, and cost is high.
The utility model content
The utility model technical matters to be solved is to the deficiency of prior art, to provide a kind of power, speed, acceleration parameter of gathering the teacher's pointer specified point to obtain the auxiliary demonstrator of built-in multimedia of hand-written image through embedded microprocessor.
For solving the problems of the technologies described above; The technical scheme of the utility model is: a kind of built-in multimedia is assisted demonstrator; Comprise microprocessor, pressure acquisition unit, voice collecting unit, instrument displacement detecting unit, display module, give the power module of each unit power supply; Described pressure acquisition unit, voice collecting unit, instrument displacement detecting unit are connected with the input end of microprocessor respectively; The output terminal of described microprocessor is connected with display module, and described microprocessor communicates through bluetooth module and computer terminal.
Described microprocessor is connected with the button detecting unit.
Described microprocessor is connected with storage unit.
Described microprocessor is connected with miniature laser head and status indicator lamp respectively.
The chip model that described microprocessor adopts is LPC1114.
Described bluetooth module adopts Bluetooth chip, and its model is BlueCore5-FM.
Described pressure acquisition unit adopts pressure sensor, described instrument displacement detecting unit adopts three dimension acceleration sensor.
Described display module adopts LCDs.
The utility model adopts said structure, has the following advantages: 1, utilize three dimension acceleration sensor typing note person's handwriting, satisfy the needs of identification narrative text.Do not need writing medium; 2, equipment is small and exquisite, uses flexibly; The equipment most of the time is operated in low-power consumption mode, and power consumption is low; The Universal USB interface, charging is convenient; 3, the clear noiseless of voice transfer; 4, menu operation interface provides abundant multimedia operations function.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation;
Fig. 1 is the logical organization block diagram of the utility model;
In Fig. 1,1, microprocessor; 2, pressure acquisition unit; 3, voice collecting unit; 4, instrument displacement detecting unit; 5, display module; 6, power module; 7, bluetooth module; 8, computer terminal; 9, button detecting unit; 10, storage unit.
Embodiment
A kind of built-in multimedia as shown in Figure 1 is assisted demonstrator; Comprise microprocessor 1, pressure acquisition unit 2, voice collecting unit 3, instrument displacement detecting unit 4, display module 5, give the power module 6 of each unit power supply; Pressure acquisition unit 2, voice collecting unit 3, instrument displacement detecting unit 4 are connected with the input end of microprocessor 1 respectively; The output terminal of microprocessor 1 is connected with display module 5, and microprocessor 1 communicates through bluetooth module 7 and computer terminal 8.
Microprocessor 1 is connected with button detecting unit 9.Microprocessor 1 is connected with storage unit 10.Microprocessor 1 is connected with miniature laser head and status indicator lamp respectively.The chip model that microprocessor 1 adopts is LPC1114.Bluetooth module 7 adopts Bluetooth chip, and its model is BlueCore5-FM.Pressure acquisition unit 2 adopts pressure sensors, instrument displacement detecting unit 4 adopts three dimension acceleration sensor, and sensor model number is MMA7260Q.Display module 5 adopts LCDs.Instrument amount of acceleration and associated components mechanical characteristic that embedded microprocessor 1 is gathered motion obtain kinematic parameter, thereby confirm operator's intention; Acquisition operations person's voice signal is put presentation terminal through the Bluetooth circuit transmission; Through detecting button related hardware and function are intended to be provided with by the operator; Provide traditional laser head to realize the scheme of operator's intention.Microprocessor 1 uses 32 arm processor LPC1114, loads uC/OS operating system and realizes the management to the instrument software and hardware resources.Microprocessor 1 is connected with the miniature laser head, and the miniature laser head is shown to teaching demonstration with image and uses the projector curtain.
Voice collecting unit 3 uses miniature voice collecting chip, on program, has formulated a cover audio transmission agreement.
Instrument displacement detecting unit 4 uses MMA7260Q to detect the three-dimensional acceleration amount, uses piezoelectric type sensor track depth characteristic; Digital Signal Analysis and the Processing Algorithm of framework on operating system, track is abstract and retrieving algorithm.
Button detecting unit 9 adopts independent button to detect; Display module 5 uses the double-colored liquid crystal display of integrated micro 128*64, and menu operation interface easily is provided; The miniature laser head uses the red laser diode.Power module 6 uses lithium battery to supply power as total system, and microprocessor 1 is connected with USB interface, and USB interface provides lithium cell charging and firmware upgrade effect.Computer terminal 8 utility appliance and program comprise USB interface formula Bluetooth adapter, adapter drivers, aided education demonstration program.Computer terminal 8 utility appliance and program provide presentation material, like the operating function commonly used of PPT, software with the aid of pictures, audio/video player and presentation terminal.
This teacher's pointer has only the common U disk size, external liquid crystal micro screen, some buttons that touch, but menu operation.The method of confirming of conventional cursor position: trace ball location, equipment are heavy relatively, simultaneously inconvenient other operations in location; Optoelectronic device (like mouse), degree of accuracy is high, but too busy to get away writing medium (mouse pad) and dielectric material are strict, can not carry; Capacitive type touch pad belongs to the contact location, and touch pad is expensive, heavy, is not suitable in the classroom, moving using; The ultrasonic locating technology needs heavy location-plate equally, and cost is high.The utility model utilizes three dimension acceleration sensor typing note person's handwriting, and bearing accuracy can satisfy the needs of identification narrative text.Utilized the kinetic characteristic of object, power, speed, the acceleration parameter of gathering the teacher's pointer specified point obtain hand-written image through embedded microprocessor.This teacher's pointer uses at any dielectric surface without any need for location aid device.Computation is flexible, can page turning, open, multimedia file such as close document, video, music, and make interactive teaching and learning.The voice collecting unit is wirelessly transmitted to presentation terminal with demonstrator's voice, has saved the traditional wireless microphone of a cover.Side circuit comprises power amplifier and signal conditioning circuit.Instrument carries little laser head, makes things convenient for the demonstrator to carry out direct point operation.Obtain the algorithm of person's handwriting from the mechanical characteristics of acceleration, speed and the specified point of three-dimensional, worked out and presentation terminal between communication protocol.It is cheap to use a kind of, the embedded microprocessor of low-power consumption.All device preparation low-power consumption mode is cut off the electricity supply when not working or is got into sleep pattern.Use common PC end Bluetooth adapter, the PC end auxiliary routine of feature richness.
Combine accompanying drawing that the utility model has been carried out exemplary description above; Obviously the concrete realization of the utility model does not receive the restriction of aforesaid way; As long as adopted method design of the utility model and the various improvement that technical scheme is carried out; Or directly apply to other occasion without improvement, all within the protection domain of the utility model.
Claims (8)
1. a built-in multimedia is assisted demonstrator; It is characterized in that: comprise microprocessor (1), pressure acquisition unit (2), voice collecting unit (3), instrument displacement detecting unit (4), display module (5), give the power module (6) of each unit power supply; Described pressure acquisition unit (2), voice collecting unit (3), instrument displacement detecting unit (4) are connected with the input end of microprocessor (1) respectively; The output terminal of described microprocessor (1) is connected with display module (5), and described microprocessor (1) communicates through bluetooth module (7) and computer terminal (8).
2. a kind of built-in multimedia according to claim 1 is assisted demonstrator, it is characterized in that: described microprocessor (1) is connected with button detecting unit (9).
3. a kind of built-in multimedia according to claim 1 is assisted demonstrator, it is characterized in that: described microprocessor (1) is connected with storage unit (10).
4. a kind of built-in multimedia according to claim 1 is assisted demonstrator, it is characterized in that: described microprocessor (1) is connected with miniature laser head and status indicator lamp respectively.
5. according to the auxiliary demonstrator of each described a kind of built-in multimedia in the claim 1～4, it is characterized in that: the chip model that described microprocessor (1) adopts is LPC1114.
6. a kind of built-in multimedia according to claim 1 is assisted demonstrator, it is characterized in that: described bluetooth module (7) adopts Bluetooth chip, and its model is BlueCore5-FM.
7. a kind of built-in multimedia according to claim 1 is assisted demonstrator, it is characterized in that: described pressure acquisition unit (2) adopts pressure sensor, described instrument displacement detecting unit (4) adopts three dimension acceleration sensor.
8. a kind of built-in multimedia according to claim 1 is assisted demonstrator, it is characterized in that: described display module (5) adopts LCDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202031932U CN202126679U (en) | 2011-06-16 | 2011-06-16 | Embedded multimedia auxiliary demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202031932U CN202126679U (en) | 2011-06-16 | 2011-06-16 | Embedded multimedia auxiliary demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202126679U true CN202126679U (en) | 2012-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202031932U Expired - Fee Related CN202126679U (en) | 2011-06-16 | 2011-06-16 | Embedded multimedia auxiliary demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202126679U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103677268A (en) * | 2013-12-12 | 2014-03-26 | 无锡格林波特科技有限公司 | Multimedia presentation system with handwriting function |
| GB2557285A (en) * | 2016-12-05 | 2018-06-20 | Meiban Int Pte Ltd | Smart working professional ring |
-
2011
- 2011-06-16 CN CN2011202031932U patent/CN202126679U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103677268A (en) * | 2013-12-12 | 2014-03-26 | 无锡格林波特科技有限公司 | Multimedia presentation system with handwriting function |
| GB2557285A (en) * | 2016-12-05 | 2018-06-20 | Meiban Int Pte Ltd | Smart working professional ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20130616 |